(19)
(11)EP 3 318 529 B1

(12)EUROPEAN PATENT SPECIFICATION

(45)Mention of the grant of the patent:
25.03.2020 Bulletin 2020/13

(21)Application number: 17200016.8

(22)Date of filing:  03.11.2017
(51)International Patent Classification (IPC): 
B66B 23/02(2006.01)
F16H 1/08(2006.01)

(54)

DIRECT DRIVE SYSTEM FOR PASSENGER CONVEYOR DEVICE AND PASSENGER CONVEYOR DEVICE

DIREKTANTRIEBSSYSTEM FÜR EINE PERSONENFÖRDERVORRICHTUNG UND PERSONENFÖRDERVORRICHTUNG

SYSTÈME D'ENTRAÎNEMENT DIRECT POUR DISPOSITIF DE TRANSPORT DE PERSONNES ET DISPOSITIF DE TRANSPORT DE PERSONNES


(84)Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30)Priority: 03.11.2016 CN 201621176306 U

(43)Date of publication of application:
09.05.2018 Bulletin 2018/19

(73)Proprietor: Otis Elevator Company
Farmington, Connecticut 06032 (US)

(72)Inventors:
  • HUANG, Jiangxing
    Pudong District, Shanghai 201206 (CN)
  • LI, JianGuo
    Hangzhou, Zhejiang 310019 (CN)
  • YUE, Fengshu
    Tianjin, Tianjin 300457 (CN)
  • ZHU, Hongmin
    Pudong District, Shanghai 201206 (CN)
  • HU, Jie
    Hangzhou, Zhejiang 310019 (CN)
  • YANG, Jianye
    Pudong District, Shanghai 201206 (CN)
  • CHEN, Shimao
    Hangzhou, Zhejiang (CN)
  • WU, Jiawei
    Pudong District, Shanghai 201206 (CN)
  • CHENG, BingYin
    Pudong District, Shanghai 201206 (CN)
  • YANG, Jinqi
    Pudong District, Shanghai 201206 (CN)
  • ZHAO, Yunyun
    Pudong District, Shanghai 201206 (CN)

(74)Representative: Dehns 
St. Bride's House 10 Salisbury Square
London EC4Y 8JD
London EC4Y 8JD (GB)


(56)References cited: : 
JP-A- H01 288 651
US-A- 3 677 388
JP-A- 2002 048 211
  
      
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).


    Description

    Technical field



    [0001] The present invention relates to the field of passenger transportation apparatuses, more particularly to a direct-drive system for a passenger transportation apparatus or passenger conveyor device.

    Background



    [0002] As a tool for improving a passenger's walking between stairs or shortening a passenger's walking distance, the passenger transportation apparatus is very common in daily life. As an example, escalators usually used between stairs of commercial buildings and moving sidewalks usually used in large-scale airports are especially common.

    [0003] For such devices, besides the considerations from the perspective of performance, the convenience of installation of the devices should also be emphatically considered in the structural design thereof. For example, for the passenger transportation apparatus, the components, such as the motor and the gear box, of the drive system thereof can generally be fixed onto the truss; furthermore, installation between the main drive shaft and the stair of the escalator and between the main drive shaft and the hand strap should also be completed. In this process, restricted by practical installation environments, the positions of several components therein need to be adjusted. If the above-mentioned arrangement is continued, in adjustment, if the motor needs to be moved, the truss should be moved as a whole; and if the main drive shaft needs to be moved, the components, such as the stair or the hand strap, should also be adjusted synchronously. As a result, the installation of the passenger transportation apparatus wastes time and energy very much.

    [0004] Moreover, the stability and reliability of the passenger transportation apparatus are also very important. In order to keep the steadiness of transportation, requirements for the drive system of the passenger transportation apparatus are more restricted. A turbine mechanism and a chain drive are mainly used in the drive system for a conventional passenger transportation apparatus. In such an arrangement, oil should be frequently added for lubrication, which on one hand may lead to the problem of lubricating oil leakage, and on the other hand needs to stop the operation of the equipment frequently, having the problem of consuming manpower for warranty and maintenance. The other kind of drive system for a passenger transportation apparatus utilizing gear drive can well overcome the above-mentioned problem, nevertheless, the drive mechanism in which multiple sets of gears are used for transmission may have larger radial vibration, which may lead to the drive system being unstable, thereby affecting the torque output. JP2002/048211 discloses a differential gear design using a helical gear.

    Summary of the invention



    [0005] An object of the present invention consists in providing a highly reliable direct-drive system for a passenger transportation apparatus.

    [0006] An object of the present invention also consists in providing a highly reliable passenger transportation apparatus.

    [0007] According to one aspect of the present invention, a direct-drive system for a passenger transportation apparatus according to claim 1 is provided. One or more embodiments of such a direct-drive system are provided by the features of dependent claims 2-10.

    [0008] According to a further aspect of the present invention, a passenger transportation apparatus is also provided, which comprises a direct-drive system as stated above, and a truss, wherein the first end and second end of the main drive shaft is connected to the truss in a rotatable manner. One or more embodiment of such an apparatus are provided by the features of dependent claims 12-14.

    Brief description of the drawings



    [0009] 

    Figure 1 is a first-perspective schematic diagram of a partial structure of one embodiment of a direct-drive system;

    Figure 2 is a second-perspective schematic diagram of a partial structure of one embodiment of the direct-drive system;

    Figure 3 is a schematic diagram of one embodiment of the direct-drive system ;

    Figure 4 is a first-perspective schematic diagram of a partial structure of one embodiment of a passenger transportation apparatus;

    Figure 5 is a second-perspective schematic diagram of a partial structure of one embodiment of the passenger transportation apparatus; and

    Figure 6 is a third-perspective schematic diagram of a partial structure of one embodiment of the passenger transportation apparatus.


    Detailed description



    [0010] Please refer to Figures 1 to 3, which show a direct-drive system 100 for a passenger transportation apparatus. As shown in the figures, the direct-drive system 100 comprises: a motor 110 for supplying power, a gear box 130 for transmitting the power and providing a speed shift and a main drive shaft 120 for transmitting the power to a passenger transportation portion (e.g., a stairstep of the passenger transportation apparatus) of the passenger transportation apparatus. The power is transmitted by the motor 110 through a motor output shaft 111 and is input through an input end 130a of the gear box 130, and is transmitted to the main drive shaft 120 through an output end 130b of the gear box 130 after a speed shift at the gear box 130, and is transmitted to the passenger transportation portion of the passenger transportation apparatus 200 through the main drive shaft 120. The gear box comprises a plurality of gear pairs, and each of the gear pairs has a gradually decreasing gear slope along the direction from the input end of the gear box to the output end thereof. It should be understood that a helical gear pair may generally bring about a larger axial force and cushion the impact, and a spur gear pair may provide a relatively stable output torque. Therefore, under the arrangement of this embodiment, since the gear pair close to the input end of the gear box have gear teeth with a large slope, there is a large axial force in the process of outputting power to the gear box 130 via the motor 110, thus there is a good meshing effect between the gear pair, finally reducing vibration, cushioning the impact and effectively reducing noise. In addition, a plurality of gear pairs in the middle have progressively decreasing gear slopes, which on one hand counteracts a part of the axial force and keeps a part of the noise reduction effect, and on the other hand provides transition for finally obtaining a gear pair connection at the output end of the gear box. The final gear pair at the output end of the gear box cooperates with gears having a relative minimum slope, which can effectively counteract the axial force and guarantee the stability and continuity of the power output to the main drive shaft. Since the slope of the gear varies progressively, while concerning different demands for the input end and output end of the gear box, the transition of the entire process is more gentle and stable, and the gear box as a whole thus has higher reliability.

    [0011] Furthermore, in the preceding embodiment, it is only required that each gear pair has a progressively decreasing gear slope along the direct from the input end of the gear box to the output end thereof, not emphasizes that each gear pair needs to be helical gears. For example, in one example, when the gear slope of the gear pair closest to the output end decreases to a certain degree, it can also be a spur gear pair.

    [0012] For realize the object of the preceding embodiment, the constitution of the gear pair in the direct-drive system is further elaborated. A first output gear mating with the input end of the gear box is arranged on the motor output shaft, and the gear box comprises, from the input end to the output end, at least one duplicate gear and a second output gear successively, wherein the number of teeth of the duplicate gear is greater than that of the first output gear, and the number of teeth of the duplicate gear is smaller than that of the second output gear, and/or the number of teeth of a driving duplicate gear is smaller than that of a driven duplicate gear. More particularly, the duplicate gear comprises a first gear and a second gear linked to each other, wherein the first gear is driven and the second gear is in linkage therewith, and the number of teeth of the first gear is greater than that of the second gear. In such an arrangement, the duplicate gear can effectively play the role of torque transmission as a connecting link, thus decelerating the output torque from a first output gear by at least two stages and transmitting same to a second output gear, satisfying the requirement of a high deceleration ratio for gear drive in the field of passenger transportation apparatus.

    [0013] More particularly, when describing this solution by taking a gear box with three gear pairs as an embodiment, the gear box 130 comprises, in succession from the input end 130a to the output end 130b, a first duplicate gear 131, a second duplicate gear 132 and a second output gear 133, that is to say, a parallel-axis gear box 130 with three-class shift. The first duplicate gear 131 comprises a first helical gear 131a and a second helical gear 131b, wherein the first helical gear 131a meshes with a gear on the motor output shaft 111, and the second helical gear 131b meshes with the second duplicate gear 132. Additionally, the second duplicate gear 132 comprises a third helical gear 132a and a fourth spur gear 132b, wherein the third helical gear 132a meshes with the second helical gear 131b, and the fourth spur gear 132b meshes with the second output gear 133. Moreover, the second output gear 133 comprises a fifth spur gear 133a and a power output portion 133b, wherein the fifth spur gear 133a meshes with the fourth spur gear 132b, and the power output portion 133b meshes with the main drive shaft 120. Thus, the power output via the motor 110 is transmitted to the main drive shaft 120 after three-class down shift, so as to realize steady transportation thereof.

    [0014] Optionally, the first helical gear 131a constitutes a first gear pair with the gear on the motor output shaft 111; the second helical gear 131b constitutes a second gear pair with the third helical gear 132a; and the fourth spur gear 132b constitutes a third gear pair with the fifth spur gear 133a, wherein the gear slope of the first gear pair is greater than the gear slope of the second gear pair. Under such an arrangement, since the first gear pair have gear teeth with a large slope, there is a large axial force in the process of outputting power to the gear box 130 via the motor 110, thus there is a good meshing effect between the gear pair, finally reducing vibration and effectively reducing noise. Furthermore, the second gear pair has a gear slope smaller than that of the first gear pair. This on one hand counteracts a part of the axial force and keeps a part of the noise reduction effect, and on the other hand provides transition for finally obtaining the connection of the third gear pair. The final third gear pair cooperates with spur gears, which can effectively counteract the axial force and guarantee the stability and continuity of the power output to the main drive shaft.

    [0015] Furthermore, it should be appreciated that even though three gear pairs are used as an example in the preceding embodiment, in fact, the above-mentioned solution can also be applied to a solution with more or less gear pairs, for example, a gear box with four gear pairs. Of course, it should also be taken into consideration that while too many gear pairs are designed, the size of the practical arrangement space of the apparatus should also be concerned; and when two few gear pairs are designed, whether an expected high deceleration ratio can be reached should also be concerned.

    [0016] Optionally, for each duplicate gear, the diameter of the first helical gear 131a is greater than that of the second helical gear 131b, and the diameter of the third helical gear is greater than that of the fourth helical gear 132a. In addition, optionally, for each gear pair, the diameter of the first helical gear 131a is greater than that of the gear on the motor output shaft 111; the diameter of the third helical gear 132a is greater than that of the second helical gear 131b; and the diameter of the fifth spur gear 133a is greater than that of the fourth spur gear 132b. Such arrangements can all effectively improve the effect of speed shift in the gear box.

    [0017] Optionally, as a particular implementation of a connection between the main drive shaft and the gear box, the main drive shaft 120 fits the output end 130b of the gear box 130 through a spline fit. Particularly, the spline fit can comprise an outer spline and an inner spline 130c mating therewith. The outer spline is arranged close to a first end 120a of the main drive shaft 120, and the inner spline 130c is arranged running through the gear box 130 along the axis of the second output gear 133. Such a connection manner can bring about a very reliable connection, thus guaranteeing the stability of the output.

    [0018] In addition, optionally, the gear box 130 is at least partially borne by the main drive shaft 120, so that at least a part of load of the gear box 130 would be undertaken by the main drive shaft 120; in this way, the gear box does not need to be fixed onto the truss of the passenger transportation apparatus. Thus, when the relative position between various components needs to be adjusted in an installation site due to restriction of the external environment, the gear box and the main drive shaft can be directly moved as a whole, and the main drive shaft can be fixed relative to the truss when an appropriate installation position is reached, without the need for moving other components such as the truss together. In this way, the installation process of the entire passenger transportation apparatus is greatly simplified. Additionally, since this set of direct-drive system omits the drive chain part, the reliability of the connection between the gear box and the main drive shaft is effectively improved.

    [0019] For the bearing arrangement in the preceding implementation, as an embodiment, more particularly, the output end 130b of the gear box 130 is borne by the main drive shaft 120, such that the load of the output end 130b of the gear box 130 is mainly undertaken by the main drive shaft 120. Furthermore, the gear box 130 further comprises a bearing support 134 arranged close to the input end 130a, and the gear box 130 is connected to a bearing seat 211 on the truss 210 of the passenger transportation apparatus 200 via a second bearing part; and the gear box 130 is partially borne by the truss 210. As such, the load of the gear box 130 close to the input end 130a is still undertaken by the truss 210. Such an arrangement enables that the gear box and the main drive shaft can be adjusted as a whole in the installation site, and the main drive shaft is fixed to the truss after the installation position relationship between them and the truss is confirmed, thus realizing the connection between both. Subsequently, the other end of the gear box is fixed to the truss again, further improving the fastness and reliability of the installation.

    [0020] Optionally, an end of the bearing support 134 and the bearing seat 211 are respectively provided with a joint bearing 134a and a joint bearing saddle 211a mating with each other. Such an arrangement enables that the joint bearing provides some swing margin such that the gear box 130 has a certain vibration cushioning space when vibration or rotation of the gear box 130 occurs due to operation.

    [0021] In addition, optionally, the gear box 130 comprises an upper box housing 135 and a lower box housing 136, thus facilitating the equipment maintenance and the replacement of parts. An overhaul window 135a can be provided on the upper box housing 135, thus being more convenient for the equipment maintenance.

    [0022] Optionally, the motor 110 and a second end 120b of the main drive shaft 120 are deployed at the same side of the gear box 130, thus the internal installation space of the passenger transportation apparatus would be utilized more effectively.

    [0023] Optionally, improvement has also been made to the gear box 130 of the direct-drive system, and the gear box 130 is a parallel-axis gear box 130; as such, a better speed shift effect would be provided.

    [0024] Please refer to Figures 4 to 6, according to another aspect, an embodiment of a passenger transportation apparatus is also provided here. The passenger transportation apparatus 200 can comprise any embodiment of the preceding direct-drive system 100 or combination thereof; furthermore, the passenger transportation apparatus 200 further comprises a truss 210. The first end 120a and second end 120b of the main drive shaft 120 are connected to the truss 210 in a rotatable manner. In such an arrangement, on one hand, the load of the entire direct-drive system is still undertaken by the truss finally; and on the other hand, the adjustment of the position of the main drive shaft, the gear box and the motor relative to the truss is more convenient. Moreover, the main drive shaft can still rotate steadily and smoothly, so as to realize its basic function of driving the passenger transportation portion.

    [0025] As a particular arrangement manner, the passenger transportation apparatus 200 comprises a bearing base 220, and the first end 120a and second end 120b of the main drive shaft 120 are fixed to the truss 210 via the bearing base 220. At this time, on one hand, the main drive shaft can be better fixed; one the other hand, it can still rotate relative to the bearing base, without influencing its rotation operation.

    [0026] Optionally, the passenger transportation apparatus 200 further comprises a drive sprocket 122 provided on the main drive shaft 120, and the output end 130b of the gear box 130 is connected to the main drive shaft 120 at an outer side of the drive sprocket 122, thus utilizing the internal installation space of the passenger transportation apparatus more effectively.

    [0027] Optionally, the first end 120a of the main drive shaft 120 is connected to the truss 210 by running through the gear box 130; as such, the internal installation space of the passenger transportation apparatus would also be utilized more effectively.

    [0028] The installation process and operation process of the apparatus are described below in conjunction with the preceding embodiments of the direct-drive system and of the passenger transportation apparatus.

    [0029] Upon adjusting the installation position relationship between the truss and the direct-drive system in the practical application site, the truss is deployed at first, and the relative installation position of the direct-drive system is subsequently determined on the truss. Hereafter, the output end of the gear box and the main drive shaft are successively fixed, and the gear box is partially borne by the main drive shaft; the main drive shaft is fixed to the truss pivotally; and the input end of the gear box is fixed to the truss, and the gear box is partially borne by the main drive shaft. In particular, firstly, the output end of the gear box can be fixed to the main drive shaft through a spline fit, so that transmission and fixation can be realized between both; moreover, the main drive shaft is fixed to the truss pivotally via the bearing base, so that the main drive shaft can play the primary load-bearing role, without the rotation and power transmission thereof being interfered by the truss, and the relative positioning of the direct-drive system and the truss can be realized in this step; finally, the bearing support, arranged on the gear box, away from one end of the main drive shaft is installed and fixed with the bearing seat on the truss, so as to realize the adjustment and installation of the complete set of apparatus.

    [0030] During the operation of the passenger transportation apparatus, the motor outputs the power through the input of the gear box, and transmits the power to the main drive shaft through a spline fit after three-class down shift. The main drive shaft is driven and drives the drive sprocket, and finally drives the stairstep and hand strap of the passenger transportation apparatus, thus realizing the operation of both.

    [0031] The above-mentioned examples mainly explain the direct-drive system for a passenger transportation apparatus, and a passenger transportation apparatus, according to some embodiments of the present invention. Although only some of the embodiments of the present invention are described, a person skilled in the art should understand that the present invention can be implemented in many other forms without being away from the concept and range thereof. Therefore, the illustrated examples and implementations are considered illustrative but not restrictive, and the present invention can cover various modifications and replacements without departing from the scope of the present invention defined by the appended claims.


    Claims

    1. A direct-drive system (100) for a passenger transportation apparatus, comprising:

    a motor (110) comprising a motor output shaft (111), for providing power;

    a main drive shaft (120) for transmitting the power to a passenger transportation portion of the passenger transportation apparatus (200); and

    a gear box (130) comprising an input end (130a) connected to the motor output shaft (111) and an output end (130b) connected to the main drive shaft (120) respectively, and being used for transmitting the power, provided by the motor (110), to the main drive shaft (120),

    wherein the gear box (130) comprises a plurality of gear pairs, and each of the gear pairs has a progressively decreasing gear slope along the direction from the input end (130a) of the gear box to the output end (130b) thereof; characterized in that:
    the gear box (130) is a parallel-axis gear box, and the parallel-axis gear box comprises three or four gear pairs.


     
    2. The direct-drive system (100) according to claim 1, wherein a gear pair connected to the output end (130b) of the gear box is a spur gear pair.
     
    3. The direct-drive system (100) according to claim 1 or 2, wherein a first output gear mating with the input end (130a) of the gear box is arranged on the motor output shaft (111), and the gear box (130) comprises, from the input end (130a) to the output end (130b), at least one duplicate gear (131) and a second output gear (133) successively, wherein the duplicate gear comprises a first gear and a second gear linked to each other, wherein the first gear is driven and the second gear is in linkage therewith, and the number of teeth of the first gear is greater than that of the second gear, wherein the number of teeth of the first gear of the duplicate gear (131) is greater than that of the first output gear, and the number of teeth of the second gear of the duplicate gear (131) is smaller than that of the second output gear (133), and/or when a plurality of duplicate gears are included, the number of teeth of a driving gear of the duplicate gear is smaller than that of a driven gear of the duplicate gear.
     
    4. The direct-drive system (100) according to any preceding claim, wherein a first output gear mating with the input end of the gear box is arranged on the motor output shaft (111), and the gear box (130) comprises, from the input end (130a) to the output end (130b), a first duplicate gear (131), a second duplicate gear (132) and a second output gear (133) successively, and
    optionally wherein the first duplicate gear (131) comprises a first helical gear (131a) and a second helical gear (131b), wherein the first helical gear (131a) meshes with the first output gear on the motor output shaft (111), and the second helical gear (131b) meshes with the second duplicate gear (132), and
    further optionally wherein the diameter of the first helical gear (131a) is greater than the diameter of the second helical gear (131b).
     
    5. The direct-drive system (100) according to claim 4, wherein the second duplicate gear (132) comprises a third helical gear (132a) and a fourth spur gear (132b), wherein the third helical gear (132a) meshes with the first duplicate gear (131), and the fourth spur gear (132b) meshes with the second output gear (133), and
    optionally wherein the diameter of the third helical gear (132a) is greater than the diameter of the fourth spur gear (132b).
     
    6. The direct-drive system (100) according to claim 4 or 5, wherein the second output gear (133) comprises a fifth spur gear (133a) and a power output portion (133b), wherein the fifth spur gear (133a) meshes with the second duplicate gear (132), and the power output portion (133b) meshes with the main drive shaft (120).
     
    7. The direct-drive system (100) according to claim 4, 5 or 6, wherein the first duplicate gear (131) constitutes a first gear pair with the first output gear on the motor output shaft (111), and the first duplicate gear (131) constitutes a second gear pair with the third helical gear (132a), wherein the gear slope of the first gear pair is greater than that of the second gear pair.
     
    8. The direct-drive system (100) according to claim 6, wherein the main drive shaft (120) is connected to the power output portion of the second output gear (133) through a spline fit, and
    optionally comprising: an outer spline arranged close to a first end of the main drive shaft (120); and an inner spline (130c) mating therewith, which is arranged running through the gear box (130) along the axis of the second output gear (133).
     
    9. The direct-drive system (100) according to any preceding claim, wherein the gear box (130) is at least partially borne by the main drive shaft (120), and
    optionally the output end (130b) of the gear box is borne by the main drive shaft (120), and
    further optionally wherein the gear box (130) further comprises a bearing support (134) arranged close to the input end (130a), and the gear box (130) is connected to a bearing seat (211) on a truss (210) of the passenger transportation apparatus (200) by means of the bearing support (211); and the gear box (130) is partially borne by the truss (210), and
    further optionally wherein an end of the bearing support and of the bearing seat are respectively provided with a joint bearing (134a) and a joint bearing saddle (211a) mating with each other.
     
    10. The direct-drive system (100) according to any preceding claim, wherein the motor (110) and a second end of the main drive shaft (120) are arranged at the same side of the gear box (130).
     
    11. A passenger transportation apparatus (200), comprising a direct-drive system (100) as claimed in any preceding claim, and a truss (210), wherein the first end (120a) and second end (120b) of the main drive shaft (120) is connected to the truss (210) in a rotatable manner.
     
    12. The passenger transportation apparatus (200) according to claim 11, further comprising a bearing base (220), wherein the first end (120a) and second end (120b) of the main drive shaft (120) are fixed to the truss (210) via the bearing base (220), and the main drive shaft (120) can rotate about the bearing base (220).
     
    13. The passenger transportation apparatus (200) according to claim 11 or 12, further comprising a drive sprocket (122) arranged on the main drive shaft (120), and wherein the output end of the gear box (130) is connected to the main drive shaft (120) at an outer side of the drive sprocket (122).
     
    14. The passenger transportation apparatus (200) according to any of claims 11-13, wherein the first end (120a) of the main drive shaft (120) is connected to the truss (210) by running through the output end of the gear box (130).
     


    Ansprüche

    1. Direktantriebssystem (100) für eine Personenfördervorrichtung, Folgendes umfassend:

    einen Motor (110), der eine Motorausgangswelle (111) umfasst, um Leistung bereitzustellen;

    eine Hauptantriebswelle (120) zum Übertragen der Leistung auf einen Personenförderabschnitt der Personenfördervorrichtung (200); und

    ein Getriebe (130), das ein Eingangsende (130a), das mit der Motorausgangswelle (111) verbunden ist, und ein Ausgangsende (130b) umfasst, dass mit der Hauptantriebswelle (120) verbunden ist, und das dazu verwendet wird, Leistung, die von dem Motor (110) bereitgestellt wird, auf die Hauptantriebswelle (120) zu übertragen;

    wobei das Getriebe (130) eine Vielzahl von Zahnradpaaren umfasst, und jedes der Zahnradpaare eine fortschreitend abnehmende Zahnradsteigung entlang der Richtung von dem Eingangsende (130a) des Getriebes zu dessen Ausgangsende (130b) aufweist; dadurch gekennzeichnet, dass:
    das Getriebe (130) ein Parallelachsengetriebe ist, und das Parallelachsengetriebe drei oder vier Getriebepaare umfasst.


     
    2. Direktantriebssystem (100) nach Anspruch 1, wobei ein Zahnradpaar, das mit dem Ausgangsende (130b) des Getriebes verbunden ist, ein Stirnzahnradpaar ist.
     
    3. Direktantriebssystem (100) nach Anspruch 1 oder 2, wobei ein erstes Ausgangszahnrad, das mit dem Eingangsende (130a) des Getriebes zusammenpasst, an der Motorausgangswelle (111) angeordnet ist und das Getriebe (130) von dem Eingangsende (130a) bis zu dem Ausgangsende (130b) mindestens ein Doppelzahnrad (131) und darauffolgend ein zweites Ausgangszahnrad (133) umfasst, wobei das Doppelzahnrad ein erstes Zahnrad und ein zweites Zahnrad umfasst, die miteinander verbunden sind, wobei das erste Zahnrad angetrieben wird und das zweite Zahnrad damit in Verbindung steht und die Anzahl von Zähnen des ersten Zahnrads größer ist als die des zweiten Zahnrads, wobei die Anzahl der Zähne des ersten Zahnrads des Doppelzahnrads (131) größer ist als die des ersten Ausgangszahnrads und die Anzahl der Zähne des zweiten Zahnrads des Doppelzahnrads (131) kleiner ist als die des zweiten Ausgangszahnrads (133) und/oder die Anzahl der Zähne eines Antriebszahnrads des Doppelzahnrads kleiner ist als die eines Antriebszahnrads des Doppelzahnrads, wenn eine Vielzahl von Doppelzahnrädern beinhaltet sind.
     
    4. Direktantriebssystem (100) nach einem der vorhergehenden Ansprüche, wobei ein erstes Ausgangszahnrad, das mit dem Eingangsende des Getriebes zusammenpasst, an der Motorausgangswelle (111) angeordnet ist und das Getriebe (130) von dem Eingangsende (130a) bis zu dem Ausgangsende (130b) nacheinander ein erstes Doppelzahnrad (131), ein zweites Doppelzahnrad (132) und ein zweites Ausgangszahnrad (133) umfasst, und
    wobei wahlweise das erste Doppelzahnrad (131) ein erstes Schrägzahnrad (131a) und ein zweites Schrägzahnrad (131b) umfasst, wobei das erste Schrägzahnrad (131a) in das erste Ausgangszahnrad an der Motorausgangswelle (111) eingreift und das zweite Schrägzahnrad (131b) in das zweite Doppelzahnrad (132) eingreift, und
    wobei wahlweise ferner der Durchmesser des ersten Schrägzahnrads (131a) größer ist als der Durchmesser des zweiten Schrägzahnrads (131b).
     
    5. Direktantriebssystem (100) nach Anspruch 4, wobei das zweite Doppelzahnrad (132) ein drittes Schrägzahnrad (132a) und ein viertes Stirnzahnrad (132b) umfasst, wobei das dritte Schrägzahnrad (132a) in das erste Doppelzahnrad (131) eingreift, und das vierte Stirnzahnrad (132b) in das zweite Ausgangszahnrad (133) eingreift, und
    wobei wahlweise der Durchmesser des dritten Schrägzahnrads (132a) größer ist als der Durchmesser des vierten Stirnzahnrads (132b).
     
    6. Direktantriebssystem (100) nach Anspruch 4 oder 5, wobei das zweite Ausgangszahnrad (133) ein fünftes Stirnzahnrad (133a) und einen Leistungsausgangsabschnitt (133b) umfasst, wobei das fünfte Stirnzahnrad (133a) in das zweite Doppelzahnrad (132) eingreift, und der Leistungsausgangsabschnitt (133b) in die Hauptantriebswelle (120) eingreift.
     
    7. Direktantriebssystem (100) nach Anspruch 4, 5 oder 6, wobei das erste Doppelzahnrad (131) mit dem ersten Ausgangszahnrad an der Motorausgangswelle (111) ein erstes Zahnradpaar bildet, und das erste Doppelzahnrad (131) mit dem dritten Schrägzahnrad (132a) ein zweites Zahnradpaar bildet, wobei die Zahnradsteigung des ersten Zahnradpaares größer ist als die des zweiten Zahnradpaares.
     
    8. Direktantriebssystem (100) nach Anspruch 6, wobei die Hauptantriebswelle (120) mit dem Leistungsausgangsabschnitt des zweiten Ausgangszahnrads (133) durch eine Keilverzahnung verbunden ist, und
    wahlweise Folgendes umfassend: einen äußeren Keil, der nah an einem ersten Ende der Hauptantriebswelle (120) angeordnet ist; und einen inneren Keil (130c), der darin eingreift und so angeordnet ist, dass er entlang der Achse des zweiten Ausgangszahnrads (133) durch das Getriebe (130) verläuft.
     
    9. Direktantriebssystem (100) nach einem der vorhergehenden Ansprüche, wobei das Getriebe (130) mindestens teilweise von der Hauptantriebswelle (120) getragen wird, und
    wahlweise das Ausgangsende (130b) des Getriebes von der Hauptantriebswelle (120) getragen wird, und
    wobei wahlweise ferner das Getriebe (130) ferner einen Lagerträger (134) umfasst, der nah an dem Eingangsende (130a) angeordnet ist, und das Getriebe (130) mittels des Lagerträgers (211) mit einem Lagersitz (211) auf einem Verstrebungselement (210) der Personenfördervorrichtung (200) verbunden ist; und das Getriebe (130) teilweise von dem Verstrebungselement (210) getragen wird, und
    wobei wahlweise ferner ein Ende des Lagerträgers und des Lagersitzes jeweils mit einem Gelenklager (134a) und einem Gelenklagersattel (211a) versehen sind, die ineinander eingreifen.
     
    10. Direktantriebssystem (100) nach einem der vorhergehenden Ansprüche, wobei der Motor (110) und ein zweites Ende der Hauptantriebswelle (120) auf derselbe Seite des Getriebes (130) angeordnet sind.
     
    11. Personenfördervorrichtung (200), ein Direktantriebssystem (100) nach einem der vorhergehenden Ansprüche und ein Verstrebungselement (210) umfassend, wobei das erste Ende (120a) und das zweite Ende (120b) der Hauptantriebswelle (120) rotierend mit dem Verstrebungselement (210) verbunden sind.
     
    12. Personenfördervorrichtung (200) nach Anspruch 11, ferner eine Lagerbasis (220) umfassend, wobei das erste Ende (120a) und das zweite Ende (120b) der Hauptantriebswelle (120) über die Lagerbasis (220) an dem Verstrebungselement (210) befestigt sind und die Hauptantriebswelle (120) um die Lagerbasis (220) rotiert.
     
    13. Personenfördervorrichtung (200) nach Anspruch 11 oder 12, ferner ein Antriebsritzel (122) umfassend, das an der Hauptantriebswelle (120) angeordnet ist, und wobei das Ausgangsende des Getriebes (130) an einer äußeren Seite des Antriebsritzels (122) mit der Hauptantriebswelle (120) verbunden ist.
     
    14. Personenfördervorrichtung (200) nach einem der Ansprüche 11 bis 13, wobei das erste Ende (120a) der Hauptantriebswelle (120) durch das Ausgangsende des Getriebes (130) läuft und dadurch mit dem Verstrebungselement (210) verbunden ist.
     


    Revendications

    1. Système d'entraînement direct (100) pour un appareil de transport de personnes, comprenant :

    un moteur (110) comprenant un arbre de sortie de moteur (111), permettant de fournir de l'énergie ;

    un arbre d'entraînement principal (120) permettant de transmettre l'énergie à une partie de transport de personnes de l'appareil de transport de personnes (200) ; et

    une boîte d'engrenages (130) comprenant une extrémité d'entrée (130a) raccordée à l'arbre de sortie de moteur (111) et une extrémité de sortie (130b) raccordée à l'arbre d'entraînement principal (120) respectivement, et étant utilisée pour transmettre l'énergie, fournie par le moteur (110), à l'arbre d'entraînement principal (120),

    dans lequel la boîte d'engrenages (130) comprend une pluralité d'engrenages, et chacun des engrenages a une pente de roue dentée diminuant progressivement le long de la direction à partir de l'extrémité d'entrée (130a) de la boîte d'engrenages jusqu'à l'extrémité de sortie (130b) de celle-ci ; caractérisé en ce que :
    la boîte d'engrenages (130) est une boîte d'engrenages à axes parallèles, et la boîte d'engrenages à axes parallèles comprend trois ou quatre engrenages.


     
    2. Système d'entraînement direct (100) selon la revendication 1, dans lequel un engrenage raccordé à l'extrémité de sortie (130b) de la boîte d'engrenages est un engrenage à denture droite.
     
    3. Système d'entraînement direct (100) selon la revendication 1 ou 2, dans lequel une première roue dentée de sortie s'accouplant à l'extrémité d'entrée (130a) de la boîte d'engrenages est agencée sur l'arbre de sortie de moteur (111), et la boîte d'engrenages (130) comprend, à partir de l'extrémité d'entrée (130a) jusqu'à l'extrémité de sortie (130b), au moins une roue dentée double (131) et une seconde roue dentée de sortie (133) successivement, dans lequel la roue dentée double comprend une première roue dentée et une seconde roue dentée reliées l'une à l'autre, dans lequel la première roue dentée est entraînée et la seconde roue dentée est en liaison avec celle-ci, et le nombre de dents de la première roue dentée est supérieur à celui de la seconde roue dentée, dans lequel le nombre de dents de la première roue dentée de la roue dentée double (131) est supérieur à celui de la première roue dentée de sortie, et le nombre de dents de la seconde roue dentée de la roue dentée double (131) est inférieur à celui de la seconde roue dentée de sortie (133), et/ou lorsqu'une pluralité de roues dentées doubles sont incluses, le nombre de dents d'une roue dentée menante de la roue dentée double est inférieur à celui d'une roue dentée menée de la roue dentée double.
     
    4. Système d'entraînement direct (100) selon une quelconque revendication précédente, dans lequel une première roue dentée de sortie s'accouplant à l'extrémité d'entrée de la boîte d'engrenages est agencée sur l'arbre de sortie de moteur (111), et la boîte d'engrenages (130) comprend, à partir de l'extrémité d'entrée (130a) jusqu'à l'extrémité de sortie (130b), une première roue dentée double (131), une seconde roue dentée double (132) et une seconde roue dentée de sortie (133) successivement, et
    éventuellement dans lequel la première roue dentée double (131) comprend une première roue dentée hélicoïdale (131a) et une deuxième roue dentée hélicoïdale (131b), dans lequel la première roue dentée hélicoïdale (131a) s'accouple à la première roue dentée de sortie sur l'arbre de sortie de moteur (111), et la deuxième roue dentée hélicoïdale (131b) s'accouple à la seconde roue dentée double (132), et
    en outre éventuellement dans lequel le diamètre de la première roue dentée hélicoïdale (131a) est supérieur au diamètre de la deuxième roue dentée hélicoïdale (131b).
     
    5. Système d'entraînement direct (100) selon la revendication 4, dans lequel la seconde roue dentée double (132) comprend une troisième roue dentée hélicoïdale (132a) et une quatrième roue dentée à denture droite (132b), dans lequel la troisième roue dentée hélicoïdale (132a) s'accouple à la première roue dentée double (131), et la quatrième roue dentée à denture droite (132b) s'accouple à la seconde roue dentée de sortie (133), et
    éventuellement dans lequel le diamètre de la troisième roue dentée hélicoïdale (132a) est supérieur au diamètre de la quatrième roue dentée à denture droite (132b).
     
    6. Système d'entraînement direct (100) selon la revendication 4 ou 5, dans lequel la seconde roue dentée de sortie (133) comprend une cinquième roue dentée à denture droite (133a) et une partie de sortie d'énergie (133b), dans lequel la cinquième roue dentée à denture droite (133a) s'accouple à la seconde roue dentée double (132), et la partie de sortie d'énergie (133b) s'accouple à l'arbre d'entraînement principal (120) .
     
    7. Système d'entraînement direct (100) selon la revendication 4, 5 ou 6, dans lequel la première roue dentée double (131) constitue un premier engrenage avec la première roue dentée de sortie sur l'arbre de sortie de moteur (111), et la première roue dentée double (131) constitue un second engrenage avec la troisième roue dentée hélicoïdale (132a), dans lequel la pente de roue dentée du premier engrenage est supérieure à celle du second engrenage.
     
    8. Système d'entraînement direct (100) selon la revendication 6, dans lequel l'arbre d'entraînement principal (120) est raccordé à la partie de sortie d'énergie de la seconde roue dentée de sortie (133) par l'intermédiaire d'un calage cannelé, et
    comprenant éventuellement : une cannelure extérieure agencée près d'une première extrémité de l'arbre d'entraînement principal (120) ; et une cannelure intérieure (130c) s'accouplant à celle-ci, qui est agencée traversant la boîte d'engrenages (130) le long de l'axe de la seconde roue dentée de sortie (133).
     
    9. Système d'entraînement direct (100) selon une quelconque revendication précédente, dans lequel la boîte d'engrenages (130) est au moins partiellement portée par l'arbre d'entraînement principal (120), et
    éventuellement l'extrémité de sortie (130b) de la boîte d'engrenages est portée par l'arbre d'entraînement principal (120), et
    en outre éventuellement dans lequel la boîte d'engrenages (130) comprend en outre un support de palier (134) agencé près de l'extrémité d'entrée (130a), et la boîte d'engrenages (130) est raccordée à un siège de palier (211) sur une barre de renfort (210) de l'appareil de transport de personnes (200) au moyen du support de palier (211) ; et la boîte d'engrenages (130) est partiellement portée par la barre de renfort (210), et
    en outre éventuellement dans lequel une extrémité du support de palier et une extrémité du siège de palier sont respectivement pourvues d'un palier à rotule (134a) et d'une console de palier à rotule (211a) s'accouplant l'un à l'autre.
     
    10. Système d'entraînement direct (100) selon une quelconque revendication précédente, dans lequel le moteur (110) et une seconde extrémité de l'arbre d'entraînement principal (120) sont agencés au niveau du même côté de la boîte d'engrenages (130) .
     
    11. Appareil de transport de personnes (200), comprenant un système d'entraînement direct (100) selon une quelconque revendication précédente, et une barre de renfort (210), dans lequel la première extrémité (120a) et la seconde extrémité (120b) de l'arbre d'entraînement principal (120) sont raccordées à la barre de renfort (210) d'une manière rotative.
     
    12. Appareil de transport de personnes (200) selon la revendication 11, comprenant en outre une base de palier (220), dans lequel la première extrémité (120a) et la seconde extrémité (120b) de l'arbre d'entraînement principal (120) sont fixées à la barre de renfort (210) via la base de palier (220), et l'arbre d'entraînement principal (120) peut tourner autour de la base de palier (220).
     
    13. Appareil de transport de personnes (200) selon la revendication 11 ou 12, comprenant en outre un pignon d'entraînement (122) agencé sur l'arbre d'entraînement principal (120), et dans lequel l'extrémité de sortie de la boîte d'engrenages (130) est raccordée à l'arbre d'entraînement principal (120) au niveau d'un côté extérieur du pignon d'entraînement (122).
     
    14. Appareil de transport de personnes (200) selon l'une quelconque des revendications 11 à 13, dans lequel la première extrémité (120a) de l'arbre d'entraînement principal (120) est raccordée à la barre de renfort (210) en traversant l'extrémité de sortie de la boîte d'engrenages (130).
     




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    Cited references

    REFERENCES CITED IN THE DESCRIPTION



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    Patent documents cited in the description