CN105644580A - Crushing device, assembling method thereof and coupler buffer system comprising crushing device - Google Patents
Crushing device, assembling method thereof and coupler buffer system comprising crushing device Download PDFInfo
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- CN105644580A CN105644580A CN201511002005.9A CN201511002005A CN105644580A CN 105644580 A CN105644580 A CN 105644580A CN 201511002005 A CN201511002005 A CN 201511002005A CN 105644580 A CN105644580 A CN 105644580A
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- crushing device
- mount pad
- baffle ring
- hitch
- rotation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G11/00—Buffers
- B61G11/16—Buffers absorbing shocks by permanent deformation of buffer element
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Abstract
The invention provides a crushing device, an assembling method thereof and a car coupler buffer system comprising the crushing device, and belongs to the technical field of impact energy absorption. The crushing device of the invention comprises a deformation pipe, a pressurizing part and a mounting seat, and also comprises: the stop ring is in threaded connection with an internal thread hole at the side end of the coupler of the mounting seat and is provided with an external thread, and the anti-rotation mechanism is used for preventing the pressurizing part and the deformation pipe from rotating relative to the mounting seat. The car body side end of the mounting seat is provided with a protruding portion protruding inwards relative to the internal thread hole, the side end portion of the car coupler of the deformation pipe is provided with an outer protruding portion, and the outer protruding portion of the deformation pipe is axially limited between the protruding portions of the stop ring and the mounting seat. The crushing device has the advantages of simple structure, low cost and simple assembly process.
Description
Technical field
The invention belongs to impact energy absorb technical field, it relates to the hitch buffering system of rail vehicle, particularly relates to the crushing device in hitch buffering system and assemble method thereof.
Background technology
Usually connected by hitch (Coupler) between rail vehicle, and corresponding hitch arranges corresponding hitch buffering system; Wherein, hitch buffering system is provided with usually for absorbing improper energy absorption unit (or energy absorption device) being greater than predetermined power impacting generation, i.e. crushing device. The ultimate principle of crushing device utilizes distortion pipe (also referred to as " conquassation pipe ") to produce viscous deformation and absorb energy under the impact energy effect passed over, it can effectively ensure the security of rail vehicle under improper impact operating mode and make the car body of rail vehicle from damage. therefore, crushing device is the parts must installed and used in such as rail vehicle.
Chinese Patent Application No. is 200880015069.4, name is called in the patent of " energy absorption device for multi-section vehicles ", disclose a kind of crushing device, it comprise the first support component (2) on the car body being fixedly installed to vehicle, distortion pipe (5), for transmit impact energy joint element (4) and for the 2nd support component (3) that pressurizes to distortion pipe (5) and guide member (6). When being subject to improper impact, the 2nd support component (3) and guide member (6) move to car body side in distortion pipe (5), thus distortion pipe (5) part are expanded and produces viscous deformation, thus absorb energy to ensure that car body is from damage. Therefore, in crushing device working process, need to ensure that the distortion pipe (5) being used for absorbing energy does not move (even if compared with improper impact of macro-energy when) to car body side, thus distortion pipe (5) must be fastened on the first support component (2) securely. See Fig. 2 a and Fig. 2 b of this patent, distortion pipe (5) is realized by multiple bolt connection piece (8) with being fixedly connected with of the first support component (2), thus distortion is managed (5) and fixes with the first support component (2) together relative car body.The external impact born due to crushing device is bigger, the numerous bolt connection pieces (8) being circular layout as shown in Figure 2 a must be adopted, and, need to bear bigger impact due to each bolt connection piece (8), therefore, the crushing device of above prior art example must have following shortcoming:
The first, the requirement of strength height of bolt connection piece (8), the requirement on machining accuracy height of internal thread hole managing (5) at the first support component (2) and distortion that bolt connection piece (8) is corresponding, thus easily cause cost to promote;
2nd, bolt connection piece (8) is numerous, complex structure;
3rd. in an assembling process, the internal thread hole between the first support component (2) and distortion pipe (5) must accurate alignment one by one, the installation one by one of numerous bolt connection piece (8) is fastening, assembling complex process.
In view of this, it is necessary to propose a kind of novel crushing device.
Summary of the invention
For solving above technical problem, existing crushing device is improved to propose the crushing device that a kind of structure is simple, cost is low, simple for assembly process by the present invention.
According to an aspect of of the present present invention, a kind of crushing device is provided, comprise distortion pipe, for external impact force being passed to the pressurization parts of described distortion pipe, the mount pad for being fixed on the car body of vehicle by described crushing device, the hitch side end winding support of described distortion pipe is in described mount pad, and the car body side end of described pressurization parts is placed in described distortion pipe; Wherein, described crushing device also comprises:
Having externally threaded baffle ring, it is threaded with the internal thread hole of the end, hitch side of described mount pad; And
Rotation-preventing mechanism, for stoping, described pressurization parts rotate relative to described mount pad with distortion pipe for it;
Wherein, the car body side end of described mount pad is provided with the salient of relatively described internal thread hole convex, the end, hitch side of described distortion pipe is provided with male part, and the male part of described distortion pipe is axially defined between the salient of described baffle ring and described mount pad.
Crushing device according to an embodiment of the invention, wherein, the both sides of the male part of described distortion pipe are directly or indirectly kept out with the salient of described mount pad by described baffle ring respectively thus the described distortion relative described mount pad of pipe are axially defined.
Crushing device according to an embodiment of the invention, wherein, described baffle ring also moves to hitch side for the parts that pressurize described in backstop, and car body side end and the described pressurization parts of described baffle ring offset.
Specifically, described pressurization parts being provided with annular boss, the end face of described baffle ring and the hitch side of described annular boss is kept out mutually.
Crushing device according to an embodiment of the invention, wherein, the relatively described mount pad (120) of described rotation-preventing mechanism is arranged radially.
Specifically, described rotation-preventing mechanism comprises:
Anti-rotation bolt;
The latch hole radially arranged on described mount pad;
The first anti-rotation feature that the end, hitch side of described distortion pipe is arranged; And
The 2nd anti-rotation feature arranged on described pressurization parts;
Wherein, described anti-rotation bolt inserts in described latch hole, the first anti-rotation feature and the 2nd anti-rotation feature simultaneously at least in part.
Can selection of land, described first anti-rotation feature is U shape hole or waist shaped hole, and wherein this U shape hole is opposite in hitch side opening; Described 2nd anti-rotation feature is the U-type groove being opposite in hitch side opening.
Can selection of land, described anti-rotation bolt is screw, and described latch hole correspondence is provided with internal thread, and described screw correspondence is provided with pad.
Can selection of land, the salient of described mount pad is annular boss structure.
The crushing device of an embodiment is gone back according to the present invention, wherein, described crushing device also comprises guide member, it pastes the internal surface of reducing section by described distortion pipe and arranges, and for guiding described pressurization parts axially moving along described distortion pipe substantially under portion's impact force action outside towards car body side.
Can selection of land, described guide member is connected with the car body side end shrink-fit of described pressurization parts.
Can selection of land, described baffle ring at least keeps out distortion pipe inwall again by the parts that pressurize described in backstop, described pressurization parts, the hitch side one side of the male part of described baffle ring and described distortion pipe is kept out indirectly, further, between the end, hitch side of described distortion pipe and described baffle ring, there is gap in the axial direction.
In the crushing device of any embodiment before, the end, hitch side of described pressurization parts is provided with the pivot pin for being connected with coupler draft gear pivotable.
In the crushing device of any embodiment before, the maximum external diameter of the car body side end being placed in described distortion pipe of described pressurization parts is greater than the internal diameter of described baffle ring.
In the crushing device of any embodiment before, described crushing device also comprise for described baffle ring and described mount pad be threaded fixing after by the locking of described baffle ring to prevent its Lock Part rotated relative to described mount pad.
Being provided with multiple lug boss in the one side of the hitch in opposite directions of described baffle ring, the first end of described Lock Part is limited between adjacent described lug boss, and the 2nd end of described Lock Part is fixed on described mount pad.
According to the one side again of the present invention, it is provided that the assemble method of a kind of above-mentioned crushing device, it is characterised in that, at least comprise portion's step:
A the end, hitch side of described distortion pipe is installed in described mount pad by ();
B () is installed in described distortion pipe to the car body side end of the parts that pressurize described in major general; And
C described baffle ring is screwed the end, hitch side being mounted to described mount pad by (), thus the both sides making the male part of at least described distortion pipe are directly or indirectly kept out by the salient of described baffle ring and described mount pad respectively.
Assemble method according to an embodiment of the invention, wherein, also comprises step between step (a) and step (b):
(a1) rotation-preventing mechanism is installed.
Preferably, described rotation-preventing mechanism comprises:
Anti-rotation bolt;
The latch hole radially arranged on described mount pad;
The first anti-rotation feature that the end, hitch side of described distortion pipe is arranged; And
Described pressurization parts are provided with the 2nd anti-rotation feature;
Wherein, described anti-rotation bolt inserts in described latch hole, the first anti-rotation feature and the 2nd anti-rotation feature simultaneously at least in part; Described anti-rotation bolt is screw, and described latch hole correspondence is provided with internal thread;
Wherein, described installation rotation-preventing mechanism step comprises:
Regulate the position of described distortion pipe, the first anti-rotation feature of described distortion pipe is alignd with the latch hole of described mount pad, is screwed into described screw but does not tighten.
In the assemble method of described embodiment before, described crushing device also comprises guide member, and it is for guiding described pressurization parts axially moving along described distortion pipe substantially under portion's impact force action outside towards car body side;
Wherein, the described step (b) of described assemble method comprises following sub-step:
(b1) described guide member shrink-fit is connected to the car body side end of described pressurization parts;
(b2) the described guide member and the described pressurization parts that shrink-fit are connected load in described distortion pipe from the end, hitch side of described distortion pipe, at least make described guide member paste the internal surface of the reducing section by described distortion pipe; And
(b3) regulating the position of described pressurization parts that the 2nd anti-rotation feature of described pressurization parts is alignd with the first anti-rotation feature of described distortion pipe, continuing to be screwed into described screw until tightening.
In the assemble method of described embodiment before, in described (c) step, described baffle ring is screwed the end, hitch side being mounted to described mount pad, thus the end face making the hitch side of the annular boss arranged on described baffle ring and described pressurization parts is kept out mutually.
According to the also one side of the present invention, it is provided that a kind of hitch buffering system, comprises the crushing device described in hitch, coupler draft gear and above arbitrary item.
The crushing device of the present invention adopts baffle ring distortion pipe, pressurization parts and mount pad to be tightened together, thus backstop distortion pipe is mounted opposite moving axially of seat, and adopt rotation-preventing mechanism to prevent pressurization parts and distortion pipe to be mounted opposite seat to rotate, backstop is moved axially and prevents to rotate and realized by different parts respectively, enables baffle ring substitute multiple bolt connection pieces of requirement on machining accuracy height of the prior art, assembling complex process. Therefore, one-piece construction is simple, and, the intensity height of the parts such as baffle ring, requirement on machining accuracy are low, it is easy to processing realizes, and crushing device cost is low; In particular, the overall package technique of crushing device is simple.
Accompanying drawing explanation
From, following detailed explanation by reference to the accompanying drawings, the above and other object of the present invention and advantage being made more complete clear, wherein, same or similar key element adopts identical label to represent.
Fig. 1 is the cross-sectional view of the crushing device according to one embodiment of the invention.
Fig. 2 is the perspective view from hitch side-looking angle of the crushing device according to one embodiment of the invention.
Fig. 3 is the perspective view from car body side visual angle of the crushing device according to one embodiment of the invention.
Fig. 4 is the decomposing schematic representation of the crushing device according to one embodiment of the invention.
Fig. 5 is the baffle ring schematic diagram of the crushing device according to one embodiment of the invention, and wherein Fig. 5 (a) is front view, and Fig. 5 (b) is the Section A-A schematic diagram in Fig. 5 (a).
Fig. 6 is the mount pad schematic diagram of the crushing device according to one embodiment of the invention, and wherein Fig. 6 (a) is front view, and Fig. 6 (b) is the section B-B schematic diagram in Fig. 6 (a), and Fig. 6 (c) is the C-C schematic cross-section in Fig. 6 (a).
Embodiment
What introduce below is that the multiple of the present invention may some in embodiments, it is intended to provides the basic understanding to the present invention, is not intended to confirm key or the decisive key element of the present invention or limit claimed scope. It should be readily understood that according to the technical scheme of the present invention, under the connotation not changing the present invention, one of ordinary skill in the art can propose other implementations that can mutually replace. Therefore, following embodiment and accompanying drawing are only the exemplary illustrations of the technical scheme to the present invention, and should not be considered as the whole of the present invention or be considered as the restriction to technical solution of the present invention or restriction.
In description below, clear and simple and clear for what describe, all multiple parts shown in figure are not described.Shown in the drawings of multiple parts for those of ordinary skill in the art provide the disclosure that can realize completely of the present invention. To those skilled in the art, many parts are all familiar and obvious.
Directional terminology used herein is that the orientation put in the accompanying drawings based on crushing device defines, and, it is to be understood that, these directional terminology are relative concepts, they for relative to description and clarification, it correspondingly can change according to the change in the orientation that crushing device is put. Further, herein, " hitch side " refers to crushing device in actual use near one end of hitch, and " car body side " refers to crushing device in actual use near car body one end of vehicle.
Fig. 1 show the cross-sectional view of the crushing device according to one embodiment of the invention; Fig. 2 show the perspective view from hitch side-looking angle of the crushing device according to one embodiment of the invention; Fig. 3 show the perspective view from car body side visual angle of the crushing device according to one embodiment of the invention; Fig. 4 show the decomposing schematic representation of the crushing device according to one embodiment of the invention; Fig. 5 show the baffle ring schematic diagram of the crushing device according to one embodiment of the invention, and wherein Fig. 5 (a) is front view, and Fig. 5 (b) is the Section A-A schematic diagram in Fig. 5 (a); Fig. 6 show the mount pad schematic diagram of the crushing device according to one embodiment of the invention, and wherein Fig. 6 (a) is front view, and Fig. 6 (b) is the section B-B schematic diagram in Fig. 6 (a), and Fig. 6 (c) is the C-C schematic cross-section in Fig. 6 (a). Below in conjunction with Fig. 1 to Fig. 6, the crushing device 10 of the embodiment of the present invention is described in detail.
Crushing device 10 can be arranged on the car body of rail vehicle, such as, it is possible to is arranged on the headstock position of EMU, for absorbing the improper impact energy impacting generation, prevents vehicle damage and improves the security of vehicle. It is to be understood that the crushing device 10 of the embodiment of the present invention is also applied in the vehicle of other similar rail vehicle operating modes. First shown in composition graphs 1 to Fig. 4, in this embodiment, crushing device 10 mainly comprises the parts such as pressurization parts 110, mount pad 120, baffle ring 130, anti-rotation bolt 140 and distortion pipe 160, can selection of land, it is also possible to comprise guide member 150 that is that be placed in distortion pipe 160 and that be connected with pressurization parts 110. It should be noted that, above parts except anti-rotation bolt 140 in crushing device 10, according to it at installation position, all can define its car body side end and end, hitch side.
Continue shown in Fig. 1 to Fig. 4, in conjunction with as shown in Figure 6, mount pad 120 is used for fixing other parts installing crushing device 10, and makes crushing device 10 entirety be fixed on the car body of vehicle. In one embodiment, mount pad 120 is that the holding bolt (not shown) by high strength is fixed, and accordingly, is provided with some through holes 121 on mount pad 120. The periphery of baffle ring 130 is provided with outside screw, and correspondingly, the hitch side end 120a of mount pad 120 is also provided with bigger internal thread hole 124; The aperture of internal thread hole 124 is mated mutually with the external diameter of baffle ring 130, thus baffle ring 130 can conveniently be screwed into mount pad from hitch side end 120a and the connection that is screwed.
Further, the car body side end 120b of mount pad 120 is also provided with the salient 123 of relative internal thread hole 124 convex, and specifically, this salient 123 can be, but not limited to as annular boss structure, such as, it is also possible to is the projection cube structure that two or more are provided separately.It is to be understood that when adopting annular boss structure, its machining is relatively simple.
Further, the upper end of mount pad 120 is provided with latch hole 122, and it is for anti-rotation bolt 140 of planting, and in this embodiment, latch hole 122 is radially arranged, and the external diameter of the corresponding anti-rotation bolt 140 of the pore size in latch hole 122 is arranged. Latch hole 122 longitudinally penetrates the internal thread hole 124 of mount pad 120 to mount pad 120. In one embodiment, anti-rotation bolt 140 can be, but not limited to as tightening fixing screw, and now, the upper end in latch hole 122 can arrange heavy head bore, and latch hole 122 correspondence is provided with internal thread, thus, this screw can be screwed in this latch hole 122 and fastening.
Continue shown in Fig. 1 to Fig. 4, distortion pipe 160 is roughly annulus tubular structure, and it comprises hitch side end 160a and car body side end 160b, wherein, hitch side end 160a is installed in mount pad 120, and can hold the car body side end 110b of pressurization parts 110. The hitch side end 160a of distortion pipe 160 is provided with male part 161, and the external diameter of this male part 161 is greater than the internal diameter of the salient 123 of mount pad 120; Further, the external diameter of baffle ring 130 is greater than the external diameter of the male part 161 of the hitch side end 160a of distortion pipe 160; When the male part 161 being out of shape pipe 160 is placed between the salient 123 of baffle ring 130 and mount pad 120, by tightening baffle ring 130, it is possible to the male part 161 of the hitch side end 160a of distortion pipe 160 is axially defined between the salient 123 of baffle ring 130 and mount pad 120. Specifically, see Fig. 1, being close to towards the one side of car body and the salient 123 of mount pad 120 and kept out by this salient 123 of the male part 161 of the hitch side end 160a of distortion pipe 160, thus stoping distortion pipe 160 to move to car body side, the one side towards hitch of male part 161 of distortion pipe 160 directly or indirectly can offset with baffle ring 130 and the baffle ring 130 that is fixed on mount pad 120 stops and moves to hitch side. Therefore, it is out of shape pipe 160 to be axially defined relative to mount pad 120.
In one embodiment, the one side towards hitch of the male part 161 being out of shape pipe 160 is directly kept out with the baffle ring 130 being fastened on mount pad 120, in an embodiment again, the one side towards hitch of the male part 161 of distortion pipe 160 is kept out indirectly with the baffle ring 130 being fastened on mount pad 120, specifically, as shown in Figure 1, the hitch side one side of the annular boss 113 arranged can be kept out on pressurization parts 110 by baffle ring 130, thus backstop pressurization parts 110 move to hitch side, and then the distortion pressurized parts 110 of pipe 160 keep out (because internal surface and the guide member 150 of the reducing section 162 of distortion pipe 160 are offseting in axis, and then pressurized parts 110 keep out), thus realize indirectly keeping out, now, axially certain gap can be set between the male part 161 of baffle ring 130 and distortion pipe 160, be conducive to reducing baffle ring 130, the requirement on machining accuracy of male part 161 component surface such as grade of distortion pipe 160.
It should be noted that, " directly keeping out " herein refers to that between two parts mutually kept out, directly contact interaction realization is kept out, " indirectly keeping out " herein refers between mutually keep out two parts not directly contact but realizes keeping out by one or more parts conduction, such as, between two parts indirectly kept out, pad is set, also such as above embodiment disclose guide member 150, pressurization parts 110 indirectly realizes distortion pipe 160 and baffle ring 130 between keep out effect.
Further, latch hole 122 on the corresponding mount pad 120 of the hitch side end 160a of distortion pipe 160 is provided with the first anti-rotation feature 163, first anti-rotation feature 163 can be the U shape hole of radial penetration distortion pipe 160, and this U shape hole is opposite in hitch side and arranges U shape opening, the assembling of convenient distortion pipe. In an alternative embodiment again, the first anti-rotation feature 163 can also be waist shaped hole, and waist shaped hole is axially arranged on the tube wall of distortion pipe 160. Specifically, roughly align with the latch hole 122 of mount pad 120 in U shape hole or waist shaped hole as the first anti-rotation feature 163, the anti-rotation bolt 140 being screwed into, such as screw, can stretch in this U shape hole or waist shaped hole, thus prevent distortion pipe 160 to be mounted opposite seat 120 and rotate. It is to be understood that the concrete structure design of the first anti-rotation feature 163 does not limit by the above embodiment of the present invention, such as, in other embodiments, the first anti-rotation feature 163 can also be anti-rotation gap or anti-rotation through hole.
Further, see Fig. 1, the internal diameter of distortion pipe 160 is inconsistent, it is provided with reducing section 162, in this reducing section 162, the diameter of distortion pipe 160 reduces gradually from hitch side direction car body side, and therefore, the internal diameter of hitch side end 160a of distortion pipe 160 is the internal diameter being greater than its car body side end 160b.
Continuing shown in Fig. 1 to Fig. 4, pressurization parts 110 are the parts connecting outside coupler draft gear (not shown), and external impact force is passed to distortion pipe 160 by it. Specifically, the hitch side end 110a of pressurization parts 110 is provided with the pivot pin 111 for being connected with coupler draft gear pivotable, therefore, in actual use, coupler draft gear may drive pressurization parts 110 to be even out of shape pipe 160 and be mounted opposite seat 120 and rotate at its circumferential direction, for preventing this rotation, correspondence is provided with the 2nd anti-rotation feature 112 on pressurization parts 110,2nd anti-rotation feature 112 can be specifically be arranged in the annular boss structure of pressurization parts 110, and the 2nd anti-rotation feature 112 can be, but not limited to the U-type groove for being opposite in hitch side opening. Latch hole 122 three of this U-type groove and the distortion U shape hole of pipe 160 or waist shaped hole 163, mount pad 120 is longitudinally roughly aliging, the anti-rotation bolt 140(such as screw being screwed into) can continue to stretch in this U-type groove through U shape hole or waist shaped hole, thus prevent pressurization parts 110 to be mounted opposite seat 120 and rotate. Preferably, corresponding anti-rotation bolt 140(such as screw) one or more pad 141 can be installed, make anti-rotation bolt 140(such as screw) it is mounted opposite the fastening better effects if of seat 120.
It is to be understood that the concrete structure design of the 2nd anti-rotation feature 112 does not limit by the above embodiment of the present invention, such as, in other embodiments, the 2nd anti-rotation feature 112 can also be anti-rotation chamber.
In above embodiment, the 2nd anti-rotation feature 112 that the latch hole 122 that anti-rotation bolt 140, mount pad 120 are radially arranged, the first anti-rotation feature 163 being out of shape setting on pipe 160 and pressurization parts 110 are arranged mainly constitutes the rotation-preventing mechanism being arranged in crushing device 10 of one embodiment of the invention. It is to be understood that can from embodiment instruction under distortion obtain the anti-rotation structure of other various embodiments, such as, the first anti-rotation feature 163 can also be threaded hole or other opening except U shape hole; Such as anti-rotation bolt can also be bearing pin again, is provided with the cover plate etc. preventing bearing pin from flying away in improper impact on mount pad again;When described anti-rotation bolt is bearing pin, the internal surface in described latch hole arranges internal thread without the need to correspondence. Describe in detail no longer one by one at this. And it will appreciate that, the application adopts separately rotation-preventing mechanism to prevent pressurization parts and distortion pipe to be mounted opposite seat and rotates, instead of depend on baffle ring 130(baffle ring 130 and be mainly used to backstop and move axially), thus enable baffle ring substitute multiple bolt connection pieces of requirement on machining accuracy height of the prior art, assembling complex process, fully demonstrate the application's one-piece construction simple, the intensity height of the parts such as baffle ring, requirement on machining accuracy are low, it is easy to processing realizes, and crushing device cost is low; Especially the simply outstanding advantage of the overall package technique of crushing device.
In one embodiment, guide member 150 is connected with the car body side end 110b shrink-fit of pressurization parts 110, like this, before baffle ring 130 is installed, can guide member 150 and pressurization parts 110 entirety be loaded in distortion pipe 160, further, the surging force that pressurization parts 110 transmit can be passed to guide member 150 further, and then acts on the inwall of distortion pipe 160. The car body side end 110b of pressurization parts 110 is installed in distortion pipe 160 together with guide member 150, wherein, guide member 150 pastes the internal surface of the reducing section 162 by being out of shape pipe 160, and the external peripheral surface of the annular boss structure of pressurization parts 110 pastes the internal surface of the hitch side end 160a by being out of shape pipe 160. See Fig. 1, the maximum external diameter of the car body side end 110b being placed in distortion pipe 160 of pressurization parts 110 is greater than the internal diameter of baffle ring 130, and like this, after baffle ring 130 installation is fixing, baffle ring 130 can stop pressurization parts 110 to move to hitch side. Therefore, by tightening baffle ring 130, it is possible to distortion pipe 160, pressurization parts 110 and mount pad 120 are tightened together.
It should be noted that, the reducing section 162 of distortion pipe 160 can also transmit reactive force to guide member 150, such as axially towards the reactive force of hitch side, this reactive force so can be passed to successively guide member 150, pressurization parts 110, and act on baffle ring 130 by the annular boss 113 of the parts 110 that pressurize, now, baffle ring 130 can also axially move to hitch side by backstop pressurization parts 110, and also backstop distortion pipe 160 axially moves to hitch side.
In other embodiments, guide member 150 can also be processed to form integratedly with pressurization parts 110. But, it is understood that guide member 150 parts 110 that relatively pressurize are separated, and processing is more prone to relatively. In one embodiment, the end, hitch side of guide member 150 has relatively thick wall thickness.
Continuing as shown in Figure 2, in one embodiment, crushing device 10 also comprises Lock Part 142, Lock Part 142 for baffle ring 130 be threaded with mount pad 130 fix after this baffle ring 130 locked to prevent it is mounted opposite seat 120 rotates. Specifically, some lug bosses 131 can be set in the one side of the hitch in opposite directions of baffle ring 130, one end of Lock Part 142 be limited between adjacent projections 131 formed groove in, the other end of Lock Part 142 is fixed on mount pad 120 by bolt 143 etc. Like this, Lock Part 142 can stop baffle ring 130 to be mounted opposite seat 120 to rotate, be especially mounted opposite seat 120 thread looseness in working process.
In the crushing device 10 of above embodiment, in work uses, if there is improper external impact, this surging force will be passed to pressurization parts 110, pressurization parts 110 are passed to guide member 150 further, and transmit further and act on distortion pipe 160, especially act in reducing section 162, after surging force exceedes preset value, distortion pipe 160 will expand from reducing section 162 and viscous deformation will occur, also namely distortion pipe 160 is produced conquassation effect, thus absorb the impact energy that this is huge, therefore, the security of rail vehicle under improper impact operating mode can be ensured, and make the car body of rail vehicle from damage.Distortion pipe 160 is be used as conquassation body in the crushing device 10 of the embodiment of the present invention.
It is to be noted, at crushing device 10 by the process of this impact, on the one hand, baffle ring 130 can coordinate restrained deformation pipe 160 to be well mounted opposite moving axially of seat 120 with the salient 123 of mount pad 120, only allows pressurization parts 110, the relative car body side of guide member 150 to move simultaneously. On the other hand, anti-rotation bolt 140 can stop pressurization parts 110 and distortion pipe 160 to be mounted opposite seat 120 to rotate well.
Without the need to adopting, the energy absorption device such as background technology uses numerous bolt connection piece (8) to the crushing device 10 of above embodiment, thus avoid the problem brought by this bolt connection piece (8), do not need the internal thread hole that corresponding requirement on machining accuracy is high on distortion pipe yet. Baffle ring 130 one-piece construction is simple, due to its size be obviously greater than in background technology use bolt connection piece (8), the setting accuracy of the internal thread hole 124 of its accuracy of screw machining and mount pad 120 is also easily ensured, processing is simple, simultaneously, anti-rotation bolt 140 also easily processes realization, and therefore, one-piece construction is simple, cost is low.
Should also be appreciated that simultaneously, the large size structure of baffle ring 130 causes it when being threaded with mount pad, bearing axial greater impact, intensity meets the requirement of crushing device completely, and then is reduced further by the requirement on machining accuracy of mount pad 120, baffle ring 130, distortion pipe 160.
The more important thing is, the assembling technique of the crushing device 10 of above embodiment can become simple and easily realize, and is specifically understood in the crushing device 10 assemble method process of following examples.
The assemble method of the crushing device 10 of the embodiment of the present invention mainly comprises the following steps:
First, the hitch side end 160a being out of shape pipe 160 is installed in mount pad 120.
Further, regulate the position of distortion pipe 160, the first anti-rotation feature 163 of distortion pipe 160 is alignd with the latch hole 122 of mount pad 120, is screwed into the screw as anti-rotation bolt 140 but does not tighten.
Further, guide member 150 shrink-fit is connected the car body side end 110b of pressurization parts 110.
Further, the guide member 150 shrink-fit connected and pressurization parts 110 are integrally, load distortion pipe 160 from the hitch side end 160a of distortion pipe 160, at least make guide member 150 paste the internal surface of the reducing section 162 by described distortion pipe 160.
Further, regulating the position of pressurization parts 110 that the 2nd anti-rotation feature 112 of pressurization parts 110 is roughly alignd with the first anti-rotation feature 163 of distortion pipe 160, continuing to be screwed into screw until tightening completely; Now, this screw contacts with distortion pipe 160 with pressurization parts 110, it is possible to the rotation relative to mount pad 120 of restriction pressurization parts 110 and distortion pipe 160.
Further, baffle ring 130 is screwed the hitch side end 120a being mounted to mount pad 120, until annular boss 113 phase with pressurization parts 110 is kept out, thus make that the side of the male part 161 of distortion pipe 160 and baffle ring 130 are kept out indirectly, the salient 123 of another side of male part 161 and mount pad 120 directly keeps out.
So far, the substantially assembled formation of crushing device 10.
In above assembling process, there is not the threaded hole alignment procedure one by one between mount pad and distortion pipe, there is not the installation process one by one of bolt connection piece yet, it is simple that baffle ring 130 screws installation process, and the 2nd anti-rotation feature 112, first anti-rotation feature 163 is simple with aliging of latch hole 122, tightening of anti-rotation bolt 140 is installed also simply, and therefore, overall package technique is simple.
The crushing device 10 of the above embodiment of the present invention can be applied in the hitch buffering system of rail vehicle, this hitch buffering system comprises hitch, coupler draft gear and crushing device 10, hitch, coupler draft gear, crushing device 10 are connected in turn, coupler draft gear mainly plays shock absorption in normal conditions, crushing device 10 mainly can absorb the impact energy of the improper impact operating mode passed over from hitch, and the particular type of hitch and coupler draft gear is not restrictive.
Above example mainly describes the crushing device of the present invention and assemble method thereof and hitch buffering system. Although only some of them embodiments of the present invention being described; but those of ordinary skill in the art should understand; the present invention can not deviate in its purport and scope with many other form implement; such as, guide member 150 conversion is set to the conquassation rings such as taper ring, guide member 150 is connected setting integratedly with pressurization parts 110, increase arranges the quantity etc. of anti-rotation bolt 140. Therefore, example and the enforcement mode shown are regarded as illustrative and not restrictive, and when not departing from the present invention's spirit as appended each claim defines and scope, the present invention may contain various amendments and replacement.
Claims (22)
1. a crushing device (10), comprise distortion pipe (160), for external impact force being passed to the described pressurization parts (110) of distortion pipe (160), the mount pad (120) for being fixed on the car body of vehicle by described crushing device (10), the end, hitch side (160a) of described distortion pipe (160) is fixed in described mount pad (120), and the car body side end (110b) of described pressurization parts (110) is placed in described distortion pipe (160); It is characterized in that, described crushing device (10) also comprises:
Having externally threaded baffle ring (130), it is threaded with the internal thread hole (124) of the end, hitch side (120a) of described mount pad (120); And
Rotation-preventing mechanism, it rotates relative to described mount pad (120) for stoping described pressurization parts (110) and distortion to manage (160);
Wherein, the car body side end (120b) of described mount pad (120) is provided with the salient (123) of relatively described internal thread hole (124) convex, the end, hitch side (160a) of described distortion pipe (160) is provided with male part (161), and the male part (161) of described distortion pipe (160) is axially defined between the salient (123) of described baffle ring (130) and described mount pad (120).
2. crushing device (10) as claimed in claim 1, it is characterized in that, the both sides of the male part (161) of described distortion pipe (160) are directly or indirectly kept out by the salient (123) of described baffle ring (130) and described mount pad (120) respectively, thus described distortion pipe (160) is axially defined relative to described mount pad (120).
3. crushing device (10) as claimed in claim 1, it is characterized in that, described baffle ring (130) also moves to hitch side for the parts (110) that pressurize described in backstop, and car body side end and the described pressurization parts (110) of described baffle ring (130) offset.
4. crushing device (10) as claimed in claim 3, it is characterised in that, described pressurization parts (110) are provided with annular boss (113), the end face of described baffle ring (130) and the hitch side of described annular boss is kept out mutually.
5. crushing device (10) as claimed in claim 1, it is characterised in that, the relatively described mount pad (120) of described rotation-preventing mechanism is arranged radially.
6. crushing device (10) as described in claim 1 or 5, it is characterised in that, described rotation-preventing mechanism comprises:
Anti-rotation bolt (140);
The latch hole (122) radially arranged on described mount pad (120);
The first anti-rotation feature (163) that the end, hitch side (160a) of described distortion pipe (160) is arranged; And
Upper the 2nd anti-rotation feature (112) arranged of described pressurization parts (110);
Wherein, described anti-rotation bolt (140) inserts in described latch hole (122), the first anti-rotation feature (163) and the 2nd anti-rotation feature (112) simultaneously at least in part.
7. crushing device (10) as claimed in claim 6, it is characterised in that, described first anti-rotation feature (163) is U shape hole or waist shaped hole, and wherein this U shape hole is opposite in hitch side opening; Described 2nd anti-rotation feature (112) is for being opposite in the U-type groove of hitch side opening.
8. crushing device (10) as claimed in claims 6 or 7, it is characterised in that, described anti-rotation bolt (140) is screw, and described latch hole (122) correspondence is provided with internal thread, and described screw correspondence is provided with pad (141).
9. crushing device (10) as claimed in claim 1, it is characterised in that, the salient (123) of described mount pad (120) is annular boss structure.
10. crushing device (10) as described in claim 3 or 4, it is characterized in that, described crushing device (10) also comprises guide member (150), it pastes the internal surface by the described reducing section (162) being out of shape pipe (160) and arranges, and for guiding described pressurization parts (110) substantially to manage axially moving of (160) towards car body side along described distortion under outside impact force action.
11. crushing devices (10) as claimed in claim 10, it is characterised in that, described guide member (150) is connected with car body side end (110b) shrink-fit of described pressurization parts (110).
12. crushing devices (10) as described in claim 1 or 2 or 3, it is characterized in that, described baffle ring (130) at least keeps out distortion pipe inwall again by the parts that pressurize described in backstop (110), described pressurization parts (110), described baffle ring (130) is kept out indirectly with the described hitch side one side being out of shape the male part (161) managing (160), further, described distortion is managed and is had gap in the axial direction between the end, hitch side (160a) of (160) and described baffle ring (130).
13. crushing devices (10) as claimed in claim 1, it is characterised in that, the end, hitch side (110a) of described pressurization parts (110) is provided with the pivot pin (111) for being connected with coupler draft gear pivotable.
14. crushing devices (10) as described in claim 3 or 4, it is characterised in that, the maximum external diameter of the car body side end (110b) being placed in described distortion pipe (160) of described pressurization parts (110) is greater than the internal diameter of described baffle ring (130).
15. crushing devices (10) as claimed in claim 1, it is characterized in that, described crushing device (10) also comprise for described baffle ring (130) and described mount pad (130) be threaded fixing after by described baffle ring (130) locking to prevent its Lock Part (142) rotated relative to described mount pad (120).
16. crushing devices (10) as claimed in claim 15, it is characterized in that, the one side of the hitch in opposite directions of described baffle ring (130) is provided with multiple lug boss (131), the first end of described Lock Part (142) is limited between adjacent described lug boss (131), and the 2nd end of described Lock Part (142) is fixed on described mount pad (120).
The assemble method of 17. 1 kinds of crushing devices as claimed in claim 1 (10), it is characterised in that, at least comprise step:
A the end, hitch side (160a) of described distortion pipe (160) is installed in described mount pad (120) by ();
B () is installed in described distortion pipe (160) to the car body side end (110b) of the parts that pressurize described in major general (110); And
C described baffle ring (130) is screwed the end, hitch side (120a) being mounted to described mount pad (120) by ().
18. assemble methods as claimed in claim 17, it is characterised in that, between step (a) and step (b), also comprise step:
(a1) rotation-preventing mechanism is installed.
19. assemble methods as claimed in claim 18, it is characterised in that,
Described rotation-preventing mechanism comprises:
Anti-rotation bolt (140);
The latch hole (122) radially arranged on described mount pad (120);
The first anti-rotation feature (163) that the end, hitch side (160a) of described distortion pipe (160) is arranged; And
Described pressurization parts (110) are provided with the 2nd anti-rotation feature (112);
Wherein, described anti-rotation bolt (140) inserts in described latch hole (122), the first anti-rotation feature (163) and the 2nd anti-rotation feature (112) simultaneously at least in part; Described anti-rotation bolt (140) is screw, and described latch hole (122) correspondence is provided with internal thread;
Wherein, described installation rotation-preventing mechanism step comprises:
Regulate the position of described distortion pipe (160), first anti-rotation feature (163) of described distortion pipe (160) is alignd with the latch hole (122) of described mount pad (120), is screwed into described screw but does not tighten.
20. assemble methods as claimed in claim 19, it is characterized in that, described crushing device (10) also comprises guide member (150), and it moving towards car body side for guiding described pressurization parts (110) substantially to manage the axial of (160) along described distortion under outside impact force action;
Wherein, the described step (b) of described assemble method comprises following sub-step:
(b1) described guide member (150) shrink-fit is connected to the car body side end (110b) of described pressurization parts (110);
(b2) the described guide member (150) shrink-fit connected and described pressurization parts (110) load in described distortion pipe (160) from the end, hitch side (160a) of described distortion pipe (160), at least make described guide member (150) paste the internal surface of the reducing section (162) by described distortion pipe (160); And
(b3) regulating the position of described pressurization parts (110) that the 2nd anti-rotation feature (112) of described pressurization parts (110) is alignd with first anti-rotation feature (163) of described distortion pipe (160), continuing to be screwed into described screw until tightening.
21. assemble methods as described in claim 17 or 18, it is characterized in that, in described (c) step, described baffle ring (130) is screwed and installs until the end face making the hitch side of the upper annular boss (113) arranged of described baffle ring (130) and described pressurization parts (110) is kept out mutually.
22. 1 kinds of hitch buffering systems, comprise hitch, coupler draft gear and the crushing device (10) as according to any one of claim 1 to 16.
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| CN201511002005.9A CN105644580B (en) | 2015-12-29 | 2015-12-29 | Crushing device, assembling method thereof and coupler buffer system comprising crushing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511002005.9A CN105644580B (en) | 2015-12-29 | 2015-12-29 | Crushing device, assembling method thereof and coupler buffer system comprising crushing device |
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| CN105644580B CN105644580B (en) | 2019-01-29 |
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| CN108340937A (en) * | 2018-03-21 | 2018-07-31 | 深圳市乾行达科技有限公司 | Composite material anti-climbing energy-absorbing device |
| CN108340937B (en) * | 2018-03-21 | 2023-06-09 | 深圳市乾行达科技有限公司 | Composite material anti-creeping energy-absorbing device |
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| CN105644580B (en) | 2019-01-29 |
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