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(11) | EP 0 656 248 A1 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Innovations of stone-cutter for quarry machines |
(57) 1)The hydraulic system , with a pump by variable capacity self-adjusting, that operate all the movements
of service. 2)The bedplate with track, that is realized by sections of steel electric-welded and stabilized, variables on length from 6 to 12 metres (fig. N° 2 and fig. N° 2A). 3)The machine levelling system, that happened through 6 jacks for a bedplate with track of 6 metres c.a.(fig. N°2 part. 1 and part. 5), 8 jacks for a bedplate with track of 12 metres c.a.(fig. N° 2A part. 1 and part. 5) and a verification with levels of precision by a centralized reading. 4)The blade carrying the chain, that is realized with a bi-conical form (fig. N°3 part. 3), with the vertex of the truncaded cone more short always conveyed to the primitive diameter of the wheel drive (fig.N° 3 part. 1) and the vertex of the truncaded cone more long always conveyed to the primitive diameter of the wheel extreme (fig. N° 3 part. 4). 5) The links composing the chain, with their particular design (fig. N° 4 part.3) , that permit to utilize all thickness of blade carrying the chain usually of 30 millimetres c.a. 6)The positionament of the blade carrying the chain in horizontal that happened, as well as by a hydraulic jacks with run-end fixed in advance and safety-valves operated by the hydraulic system with a pump by variable capacity self-adjusting, through arms of levers by toggle or similar with run-end adjustable (fig. N° 5 part. 3). 7)The positionament of the blade carrying the chain in vertical that happened, as well as by a hydraulic jacks with run-end fixed in advance and safety-valves operated by the hydraulic system with a pump by variable capacity self-adjusting, through an electric-hydraulic-mechanical controls that is connected to the hydraulic system above-mentioned. 8)The base by verifiable descent and levers by toggle with run-end fixed in advance that is placed on the centre of the machine for his raising and for the replacement of the bedplate with track (fig. N° 1 part. 6 and part. 7). |
1)The hydraulic system with a pump by variable capacity self-adjusting and valves in series by manual controls, electric or electronic, first innovation of the invention, permit to utilize for the better the power installed accordingly with the phase of work carry out because, with a single power group it's possible to do :
2) The bedplate with track, second innovation of the invention (fig. N° 2 part.7, fig. N° 2A part.7 and fig.
N°1 part.1), is realized by sections of steel electric-welded and stabilized, united
between themselves in rectangular form, milled, with rounds slides (fig. N° 1 part.2)
and toothed rack (des.N° 1 part.3) applied through bolts for the movement of machine;
wheels for the movement of the bedplate with track (fig. N° 2 part. 2 and fig. N°
2A part. 2), hydraulics jacks applied to the four corners outsides (fig. N° 2 part.
1 and fig. N° 2A part. 1) for the levelling and intermediates jacks foreload applied
outsides to the bedplate with track to recover the flexion (fig. N° 2 part. 5 and
fig. N° 2A part. 5).
The invention is exactly its structure that permit to realize bedplates with tracks
of differents lenghts (fig. N° 2 part. 7 and fig. N° 2A part. 7) keeping unchanged
the grade of strenght (from 6 to 12 metres c.a.).
The system of slides on which the machine rest and glide, is constituted by rounds
bars of steel (fig. N° 1 part. 2) that are bolted on the bedplate with track and by
bearings of wear applied (fig. N° 1 part. 4) into the base of the machine by automatic
lubrication. Inside of the bedplate with track (fig. N° 1 part. 3) is assembled with
bolts the toothed rack for the sliding of the machine while always inside but on the
opposite side (fig. N° 1 part. 5) there is the piping for the control of the jacks
and of the wheel to an extremity of the bedplate with track.
All the function above-mentioned are controlled by the hydraulic system with a pump
by variable capacity self-adjusting of which to the point 1.
3) The machine levelling system, third innovation of the invention, is constituted by a series of jacks by centralized
control connected to the hydraulic system with a pump by variable capacity self-adjusting
(of which to the point 1) applied to the four corners outsides of the bedplate with
track indifferently to its length (fig. N° 2 part. 1 and fig. N° 2A part. 1) and by
levels of precision by centralized reading.
With the machine in quarry, in accordance with the level of precision by centralized
reading place on the controls side (fig. N° 2 part. 6 and fig. N° 2A part. 6), are
proceeded to a first levelling regulating the hydraulics jacks put on the corners
of the controls side and then another levelling regulating the hydraulics jacks equivalents
put on the opposite side to the controls maintaining unchanged the first levelling.
With the machine so level are operated the intermediates hydraulics jacks foreload
(fig. N° 2 part. 5 and fig. N° 2A part. 5) to recover the flexion of the bedplate
with track indipendently from the level of quarry.
Also the intermediates hydraulics jacks foreload are connected to the hydraulic system
with a pump by variable capacity self-adjusting through outsides pipings to the bedplate
with track.
4) The blade carrying the chain , of bi-conical form (fig. N° 3 ) fourth innovation of the invention, is so made
to obtain the maximum of the strength and a better adhesion of the slow branch of
the chain so that, making the various blades carrying the chain of the different length
(fig. N° 3 part. 3) and changing only the breadth of the common base at the two cones
(fig. N°3 part. 2) the rigidity of the blade carrying the chain remain unchanged.
The vertex of the truncaded cone more short is always conveyed to the primitive diameter
of the wheel drive (fig. N° 3 part. 1) always utilizing so the 180 grades c.a. of
the wheel drive; besides the vertex of the truncaded cone more long is also conveyed
to the primitive diameter of the extreme wheel (fig. N° 3 part. 4). On the outside
profile of the blade carrying the chain of 30 millimetres of thickness c.a., it is
obtained a groove for the accomodation of the guide of the chain (fig. N° 4 part.
2) and under the same a groove more little and deep (fig. N° 4 part. 1) for the accommodation
in superposition of the pipings for the lubrication of the chain and of the extreme
wheel of the blade carrying the chain (fig. N° 3 part. 4). The blade carrying the
chain, on the truncaded cone more short, have a particular handgrip (fig. N° 3 part.
5) that through bolts and holes permit to assemble it to a special support (fig. N°
3 part. 6) assembled on the oscillating reducer that receive the blade carrying the
chain and it is provided with a longitudinal register (fig. N° 1 part. 8) for the
tension of the chain. This solution permit to have the maximum of the rigidity and
durability in the time.
5)The links composing the chain, fifth innovation of the invention, have a particular design (fig. N° 4 part. 3) that permit to make themselves of the same thickness of the blade carrying the chain (fig. N° 4 part. 4), usually of 30 millimetres c.a. and to receive internally the guide of the chain already mentioned at the point 4 (with reference to fig. N° 4 part. 2). This thickness permit to realize besides at the two laterals drain-holes (fig. N° 4 part. 6), a frontal hole (fig. N° 4 part. 7) working mostly to drain and in smallest part working to central guide of the little tooth of the tool-holder (fig. N° 4 part. 8). The tool-holder besides to have with their particular design a little tooth of assemblage and central positionament up the links, have a frontal hole corresponding to the frontal hole of the links themselves; besides are assembled repeatedly in a series of seven pieces (of which we report to the fig. N° 4 part. 9 the first and the last) so as to distribute the load of strain for the removal of the material during the cut.
6)In the positionament of the blade carrying the chain in horizontal, the innovation consist, besides than in a hydraulic jack with run-end decided in advance and safety-valves operated by the hydraulic system with a pump by variable capacity self-adjusting (of which to the point 1), in a sistem of arms of levers by toggle or similar (fig. N° 5 part. 3) with run-end adjustable (fig. N° 5 part. 4) that operate themselves for traction, contemporanously to the descent of the blade until to the attainment of the horizontal position. The advantages offered from this innovation are a remarkable saving of time in the positionament of the blade carrying the chain in horizontal because this operation is completely automatic and speedy and it is not necessary to apply manually plates, brackets, bolts or other.
7) In the positionament of the blade carrying the chain in vertical, the innovation consist, besides than in a hydraulic jack with run-end fixed in advance and safety-valves operated by the hydraulic system with a pump by variable capacity self-adjusting (of which to the point 1), in a special mechanical device by electric-hydraulic-mechanical control, connected with particular automatisms to the hydraulic system with a pump by variable capacity self-adjusting that operate any means able to block it whether a piston-pin or a hook or other. The advantages offered from this innovation are a remarkable saving of time in the positionament of the blade carrying the chain in vertical because this operation is completely automatic and speedy and it is not necessary to apply manually plates, brackets, bolts or other (as above to the point 6).
8) In the base by verifiable descent and levers by toggle with run-end fixed in advance, placed on the centre of the machine (fig. N° 1 part. 6) the innovation consist exactly, in a base by hydraulic control (look at the point 1) that lowering itself (fig. N° 1 part. 7), raise contemporanously machine and bedplate with track; at this point using one of the two wheels place in the centre of the bedplate with track (fig. N° 2 part. 2 and fig. N° 2A part. 2) that besides when is down prevent the oscillation, it is possible to replace it with a sliding ahead or back. Another operation practicable with the assistance of the base by verifiable descent and levers by toggle with run-end fixed in advance is the rotation of all machine, bedplate with track include, in any direction. For this operation is sufficent place the machine on the centre of the bedplate with track and interpose a special rotating place between the machine and the plain of the quarry lowering then the base by verifiable descent and levers by toggle with run-end fixed in advance.