[0001] The present application claims the priorities to Chinese Patent Application No.
201711396548.2 and Chinese Patent Application No.
201721810175.4, both titled "RAILWAY TRAIN AND CARRIAGE FLOOR STRUCTURE THEREOF" and filed with
the Chinese State Intellectual Property Office on December 21, 2017, the entire disclosures
of which applications are incorporated herein by reference.
FIELD
[0002] The present application relates to the technical field of rail trains, particularly
to a carriage base plate structure of the rail train. Besides, the present application
further relates to a rail train having the carriage base plate structure.
BACKGROUND
[0003] An electric multiple unit is a type of rail train, it is a train includes at least
two locomotives or includes a carriage with power and a plurality of carriages without
power. The electric multiple unit originates from double-heading locomotive, but is
different from the traditional double-heading locomotive. Double heading is generally
used in freight trains mainly to solve a problem of insufficient traction, which only
increases the number of locomotives and does not change the trailer property of the
railway carriage. The electric multiple unit is almost only used as passenger trains,
and is mainly for solving a problem of insufficient acceleration and limited maximum
speed, and driving devices can be placed inside multiple passenger carriages respectively,
so that these carriages are powered, while a train head may become a trailer having
only an operating deck and without a driving force.
[0004] Each carriage in the pure electric multiple unit has a power unit, the train head
and the carriages are mostly integrated, or there is no train head and the train is
completely controlled by the railway system. The electric multiple unit is mainly
used in some urban rail transit trains such as maglev trains, APM (Automated People
Mover) trains and ultra-high speed test trains and so on. The electric multiple unit
is generally composed of two locomotives, a plurality of carriages with power and
carriages without power together, and some electric multiple units omit the driving
device on the train head and keep only the control device of the train.
[0005] A carriage base plate structure includes a base plate extending in a length direction
of the carriage and side beams arranged at two sides of the base plate, and two ends
of the carriage is provided with end connecting frames directly connected to the side
beams to realize force transmission. However, this connecting manner has a poor stability,
and higher strength is required by each component, otherwise fraction at force bearing
points is apt to occur.
[0006] Therefore, a technical problem to be addressed by those skilled in the art is to
provide a safe and stable carriage base plate structure.
SUMMARY
[0007] An object of the present application is to provide a carriage base plate structure
of a rail train, to change a force transmission manner, avoid fraction of force bearing
points, so as to improve the strength, stability and safety of equipment. Another
object of the present application is to provide a rail train having the carriage base
plate structure.
[0008] In order to address the above problems, a carriage base plate structure of a rail
train is provided according to the present application includes a bottom plate and
a side beam connected to two sides of the bottom plate and extending in a length direction
of the carriage, and further includes two end connecting frames arranged at two ends
in the length direction of the carriage respectively and mounted on a bottom surface
of the bottom plate. An inner side of each of the end connecting frames is provided
with a buffer beam extending in the length direction of the carriage, an end of the
buffer beam is connected to the inner side of the end connecting frame, and a top
surface of the buffer beam is fixedly connected to the bottom surface of the bottom
plate.
[0009] Preferably, the end of the buffer beam is connected to the end connecting frame by
a coupler box, and a coupler buffer device and electrical elements are arranged in
the coupler box.
[0010] Preferably, the buffer beam includes a connecting plate horizontally arranged and
a reinforcing plate vertically arranged at two sides of the connecting plate and protruding
downward, both the connecting plate and the reinforcing plate extend in the length
direction of the carriage.
[0011] Preferably, an auxiliary plate is arranged between the reinforcing plates at two
sides of the connecting plate, the auxiliary plate is parallel with the connecting
plate, and a gap is provided between the auxiliary plate and the connecting plate.
[0012] Preferably, a plurality of process holes are sequentially arranged on the connecting
plate along an extending direction thereof.
[0013] Preferably, a first cross beam used for connecting the bottom plate is arranged above
a joint between the buffer beam and the coupler box, and a second cross beam is arranged
below the joint between the buffer beam and the coupler box, the first cross beam
and the second cross beam are horizontally arranged and perpendicular to the buffer
beam, ends of the first cross beam and the second cross beam are connected by a coupler
beam, and a coupler is mounted on the coupler beam.
[0014] Preferably, the carriage base plate structure includes three buffer beams sequentially
arranged in a width direction of the carriage and parallel with each other, and a
length of the bumper beam in the middle is smaller than lengths of the bumper beams
located at both sides.
[0015] Preferably, the carriage base plate structure further includes two end partition
walls arranged at two ends of the carriage respectively, two ends of the end partition
wall are connected to the side beams at two sides. In a longitudinal direction, the
end partition wall is located below the buffer beam, and the coupler box is located
between the end partition wall and the end connecting frame.
[0016] Preferably, the reinforcing plate is specifically an arc-shaped inclined plate which
can avoid the end partition wall, and a height of a side surface of the buffer beam
gradually decreases from a root to an end.
[0017] A rail train is provided according to the present application, including a carriage
and a carriage base plate structure arranged at a bottom of the carriage, and the
carriage base plate is specifically the carriage base plate according to any one of
the above descriptions.
[0018] A carriage base plate structure of a rail train is provided according to the present
application, including a bottom plate and a side beam connected to two sides of the
bottom plate and extending in a length direction of the carriage, and further includes
two end connecting frames arranged at two ends in the length direction of the carriage
respectively and mounted on a bottom surface of the bottom plate. An inner side of
each of the end connecting frames is provided with a buffer beam extending in the
length direction of the carriage, an end of the buffer beam is connected to the inner
side of the end connecting frame, and a top surface of the buffer beam is fixedly
connected to the bottom surface of the bottom plate. A force of the end connecting
frame is transmitted to the buffer beam, then is transmitted from the buffer beam
to the bottom plate, and finally is transmitted to the side beam. An original force
transmission manner is changed, the force of the end connecting frame is transmitted
to the side beam many times to avoid fracture of force bearing points, thereby improving
the strength, stability and safety of the device.
[0019] A rail train including the carriage base plate structure is provided according to
the present application, since the carriage base plate structure has the above technical
effects, the rail train should also have the same technical effects, which are not
be described herein.
BRIEF DESCRIPTION OF THE DRAWINGS
[0020]
Figure 1 is a structural view showing a bottom surface of a carriage in a specific
embodiment of a carriage base plate structure according to the present application;
Figure 2 is a structural view showing a bottom surface of a buffer beam in the specific
embodiment of the carriage base plate structure according to the present application;
Figure 3 is a structural view showing a top surface of a buffer beam in the specific
embodiment of the carriage base plate structure according to the present application.
DETAIL DESCRIPTION
[0021] A core of the present application is to provide a carriage base plate structure of
a rail train, which changes a force transmission manner, to avoid fraction of force
bearing points, and improve the strength, stability and safety of device. Another
core of the present application is to provide a rail train having the carriage base
plate structure.
[0022] For those skilled in the art to better understand the technical solutions of the
present application, the present application will be further described in detail hereinafter
in conjoint with the accompany drawings and the specific embodiments.
[0023] Referring to Figures 1 to 3, Figure 1 is a structural view showing a bottom surface
of a carriage in a specific embodiment of a carriage base plate structure according
to the present application; Figure 2 is a structural view showing a bottom surface
of a buffer beam in a specific embodiment of the carriage base plate structure according
to the present application; and Figure 3 is a structural view showing a top surface
of a buffer beam in a specific embodiment of the carriage base plate structure according
to the present application.
[0024] A carriage base plate structure of a rail train according to the specific embodiment
of the present application includes a bottom plate 1 and side beams 2 connected to
two sides of the bottom plate 1 and extending in a length direction of the carriage,
and further includes two end connecting frames 3 arranged at two ends in the length
direction of the carriage respectively and mounted on a bottom surface of the bottom
plate 1, that is, an overall structure of the bottom plate 1 extends in the length
direction of the carriage, and the end connecting frames 3 are arranged at two ends
of the carriage in the length direction of the bottom plate 1, the side beams 2 are
arranged between the two end connecting frames 3 that are opposite to each other,
extending directions of the two side beams 2 are both parallel with the length direction
of the carriage, and the two side beams 2 are located at two sides of the bottom plate
1 respectively.
[0025] Inner sides of the end connecting frames 3, that is, opposite sides of the two end
connecting frames, are both provided with a buffer beam 4 extending in the length
direction of the carriage. One end of the buffer beam 4 is connected to the inner
side of the end connecting frame 3 and a top surface of the buffer beam 4 is fixedly
connected to the bottom surface of the bottom plate 1.
[0026] A top surface and a bottom surface of each component are defined according to an
up-down locality when the rail train runs normally. To facilitate illustration, the
length direction of the carriage can be defined as a front-rear direction, a direction
in which the rail train travels normally is "front", and a direction opposite to "front"
is "rear"; a direction vertical to a rail surface is defined as an up-down direction,
a direction vertically pointing to the rail surface is "down" and a direction deviating
from the rail surface is "up"; a plane parallel with the rail surface is defined as
a horizontal plane, there are a front-rear direction and a left-right direction perpendicular
to the font-rear direction in the horizontal plane. The left-right direction is a
transverse direction or a width direction of the carriage described in the present
application, the front-rear direction is a longitudinal direction or the length direction
of the carriage described in the present application, and the up-down direction is
a height direction in the present application.
[0027] As shown in Figure 1, two end connecting frames 3 mounted on the bottom surface of
the bottom plate 1 refers to that, a front end and a rear end of the bottom surface
of the bottom plate 1 are both provided with one end connecting frame 3, each end
connecting frame 3 extends from up to bottom approximately, and the end connecting
frame 3 has an upper end connected to the front end or the rear end of the bottom
plate 1, and extends downward from the bottom surface of the bottom plate 1.
[0028] In the carriage base plate structure provided according to the embodiment of the
present application, a coupler box 5 is further required. An end of the buffer beam
4 is connected to the end connecting frame 3 through the coupler box 5, a cavity in
the coupler box 5 configured to mount a coupler is further provided with a coupler
buffer device and electric elements. The end connecting frame 3 is not directly connected
to the side beam 2, a force of the end connecting frame 3 is transmitted to the buffer
beam 4 through the coupler box 5, then is transmitted from the buffer beam 4 to the
bottom plate 1, and finally is transmitted to the side beam 2. An original force transmission
manner is changed, the force of the end connecting frame 3 is transmitted to the side
beam 2 through many-times transmission to avoid fracture of force bearing points,
thereby improving the strength, stability and safety of the device.
[0029] In order to improve the strength, the buffer beam 4 includes a connecting plate arranged
horizontally and a reinforcing plate 41 vertically arranged at two sides of the connecting
plate and protruding downward, both the connecting plate and the reinforcing plate
41 extend in the length direction of the carriage. A top surface of the connecting
plate is fixedly connected to the bottom plate 1, to form a main force transmission
structure, and the grooved buffer beam 4 is formed by the reinforcing plate 41 arranged
at the two sides of the connecting plate, thus improving the strength of the device.
An auxiliary plate 42 may also be arranged between the reinforcing plates 41 at the
two sides of the connecting plate, the auxiliary plate 42 is parallel with the connecting
plate, and a gap is set between the auxiliary plate 42 and the connecting plate to
further improve the strength. Multiple process holes may also be sequentially arranged
on the connecting plate along an extending direction thereof. A position and the structure
of each component can be adjusted according to different situations, which are all
within the scope of protection of the present application.
[0030] "Multiple" in the present application means "at least two". Multiple process holes
sequentially arranged on the connecting plate along the extending direction thereof
refer to that, the multiple process holes are arranged at intervals in the extending
direction of the connecting plate, the multiple process holes may not located in a
same straight line, as long as the multiple process holes are roughly sequentially
distributed in the extending direction of the connecting plate.
[0031] In the carriage base plate structure provided according to the embodiment of the
present application, a first cross beam 51 configured to connect the bottom plate
1 is arranged above a joint between the buffer beam 4 and the coupler box 5, and a
second cross beam 52 is arranged below the joint between the buffer beam 4 and the
coupler box 5. The first cross beam 51 and the second cross beam 52 are horizontally
arranged and perpendicular to the buffer beam 4, ends of the first cross beam 51 and
the second cross beam 52 are connected by a coupler beam 53, and a coupler is mounted
on the coupler beam 53, the strength of the device and the stable connection are ensured
by above structure. A tractive force and a braking force between the carriages are
transmitted to the coupler beam 53 through the coupler, the coupler beam 53 transmits
the forces to the buffer beam 4, the first cross beam 51 and the second cross beam
52, the buffer beam 4 transmits the forces to the bottom plate 1, and the bottom plate
1 transmits the forces to the side beams 2. At the same time, the first cross beam
51 and the second cross beam 52 also transmit the forces to the bottom plate 1 and
then to the side beams 2.
[0032] A number of the buffer beam can be adjusted according to different situations, for
example, three buffer beams 4 are sequentially arranged in a width direction of the
carriage, the three buffer beams 4 are parallel with each other, and a length of the
bumper beam 4 in the middle is smaller than lengths of the bumper beams located at
both sides.
[0033] Based on the carriage base plate structure provided according to the above specific
embodiments, the carriage base plate structure further includes two end partition
walls 6 arranged at two ends of the carriage respectively, two ends of the end partition
wall 6 are connected to the side beams 2 at two sides; in an up-down direction, the
end partition wall 6 is located below the buffer beam 4, and in a longitudinal direction,
the coupler box 5 is located between the end partition wall 6 and the end connecting
frame 3, thus realizes the air diversion, and a relative closed space is formed to
place other devices.
[0034] Specifically, the reinforcing plate 41 is an arc-shaped inclined plate which can
avoid the end partition wall 6, and a height of a side surface of the buffer beam
4 gradually decreases from a root to a tail end thereof, so as to avoid the end partition
wall 6 and to compact the structure.
[0035] The arc-shaped inclined plate refers to that the reinforcing plate 41 is inclined
downward from the inner side to the outer side, and the inclined surface is an arc-shaped
surface, that is, an arc-shaped curve line is inclined downward from the inner side
to the outer side, so as to form an avoidance space at the inner side of the reinforcing
plate 41 for avoiding the end partition wall 6, thus ensuring that the end partition
wall 6 can be located below the reinforcing plate 41 and mounted at the inner side
of the reinforcing plate 41.
[0036] The root of the buffer beam 4 refers to a portion connected to the end connecting
frame 3, that is, an end portion of the buffer beam 4, and the tail end refers to
another end opposite to the end portion.
[0037] In addition to the carriage base plate structure, a rail train having the above carriage
base plate structure is further provided according to the specific embodiment of the
present application, and structures of other parts of the rail train can be referred
to the conventional technology, which will not be described herein.
[0038] The rail train and the carriage base plate structure thereof provided according to
the present application are described in detail hereinbefore. The principle and the
embodiments of the present application are illustrated herein by specific examples.
The above description of examples is only intended to help the understanding of the
method and the spirit of the present application. It should be noted that, for the
person skilled in the art, a few of modifications and improvements may be made to
the present application without departing from the principle of the present application,
and these modifications and improvements are also deemed to fall into the scope of
the present application defined by the claims.
1. A carriage base plate structure of a rail train, comprising:
a bottom plate (1), and
side beams (2) connected to two sides of the bottom plate (1) and extending in a length
direction of the carriage, and
further comprising two end connecting frames (3) respectively arranged at two ends
in the length direction of the carriage and mounted on a bottom surface of the bottom
plate (1), wherein:
an inner side of each of the end connecting frames (3) is provided with a buffer beam
(4) extending in the length direction of the carriage, an end of the buffer beam (4)
is connected to the inner side of the end connecting frame (3), and a top surface
of the buffer beam (4) is fixedly connected to the bottom surface of the bottom plate
(1).
2. The carriage base plate structure according to claim 1, wherein the end of the buffer
beam (4) is connected to the end connecting frame (3) by a coupler box (5), and a
coupler buffer device and electrical elements are arranged in the coupler box (5).
3. The carriage base plate structure according to claim 2, wherein the buffer beam (4)
comprises a connecting plate horizontally arranged and a reinforcing plate (41) vertically
arranged at two sides of the connecting plate and protruding downward, and both the
connecting plate and the reinforcing plate (41) extend in the length direction of
the carriage.
4. The carriage base plate structure according to claim 3, wherein an auxiliary plate
(42) is arranged between the reinforcing plates (41) at the two sides, the auxiliary
plate (42) is parallel with the connecting plate, and a gap is arranged between the
auxiliary plate (42) and the connecting plate.
5. The carriage base plate structure according to claim 4, wherein a plurality of process
holes are sequentially arranged on the connecting plate along an extending direction
thereof.
6. The carriage base plate structure according to claim 3, wherein a first cross beam
(51) used for connecting the bottom plate (1) is arranged above a joint between the
buffer beam (4) and the coupler box (5), and a second cross beam (52) is arranged
below the joint between the buffer beam (4) and the coupler box (5), the first cross
beam (51) and the second cross beam (52) are horizontally arranged and perpendicular
to the buffer beam (4), ends of the first cross beam (51) and the second cross beam
(52) are connected by a coupler beam (53), and a coupler is mounted on the coupler
beam (53).
7. The carriage base plate structure according to claim 3, comprising three buffer beams
(4) sequentially arranged in a width direction of the carriage and parallel with each
other, wherein a length of the bumper beam (4) in the middle is smaller than lengths
of the bumper beams (4) located at both sides.
8. The carriage base plate structure according to any one of claims 3 to 7, further comprising
two end partition walls (6) arranged at two ends of the carriage respectively, wherein
two ends of the end partition wall (6) are connected to the side beams (2) at two
sides; and in an up-down direction, the end partition wall (6) is located below the
buffer beam (4), and in a longitudinal direction, the coupler box (5) is located between
the end partition wall (6) and the end connecting frame (3).
9. The carriage base plate structure according to claim 8, wherein the reinforcing plate
(41) is specifically an arc-shaped inclined plate which can avoid the end partition
wall (6), and a height of a side surface of the buffer beam (4) gradually decreases
from a root to an end of the buffer beam (4).
10. A rail train, comprising a carriage and a carriage base plate structure arranged at
a bottom of the carriage, wherein the carriage base plate structure is specifically
the carriage base plate structure according to any one of claims 1 to 9.