CN205769318U - Crushing device and the hitch buffer system including it - Google Patents

Abstract

This utility model provides a kind of crushing device and assemble method thereof and includes its hitch buffer system, belongs to impact energy absorption techniques field.Crushing device of the present utility model includes converting pipe, pressure-producing part, mounting seat, and also includes: threaded with the internal thread hole of the hitch side end of described mounting seat has externally threaded baffle ring, for the rotation-preventing mechanism stoping described pressure-producing part and converting pipe to rotate relative to described mounting seat.Wherein, the car body side end of mounting seat is provided with the protuberance of relative internal thread hole convex, and the hitch side end of converting pipe is provided with male part, and the male part of converting pipe is axially defined between baffle ring and the protuberance of mounting seat.Crushing device simple in construction of the present utility model, low cost, simple for assembly process.

Description

Crushing device and the hitch buffer system including it

Technical field

This utility model belongs to impact energy absorption techniques field, relates to the hitch buffer system of rail vehicle, especially relates to And the crushing device in hitch buffer system.

Background technology

Generally connected by hitch (Coupler) between rail vehicle, and corresponding hitch arranges corresponding hitch buffer system System；Wherein, hitch buffer system is usually provided with for absorbing can absorb more than predetermined power that improper impact produces Device (or energy absorption device), i.e. crushing device.The ultimate principle of crushing device is to utilize converting pipe (also referred to as " conquassation Pipe ") under the impact energy effect passed over, produce plastic deformation and absorb energy, it is effective to ensure that rail vehicle exists Safety under improper impact operating mode also makes the car body of rail vehicle from damage. and therefore, crushing device is such as railcar The parts necessarily installed and used in.

Chinese Patent Application No. is 200880015069.4, entitled " for the energy absorption device of multi-section vehicles " special In profit, disclosing a kind of crushing device, it includes the first support member (2), the converting pipe being fixedly installed on the car body of vehicle (5), for transmit impact energy joint element (4) and for the second support member (3) of pressurizeing to converting pipe (5) and Guide member (6).By improper impact time, the second support member (3) and guide member (6) in converting pipe (5) to car Side is moved, so that converting pipe (5) demi-inflation produces plastic deformation, thus absorbs energy to ensure that car body is from damage. Therefore, in crushing device work process, need to ensure to be used for absorb the converting pipe (5) of energy not to car body side move (even if Under the conditions of the improper impact of large energy), thus converting pipe (5) must be fastened on the first support member (2) securely On.See Fig. 2 a and Fig. 2 b of the patent that Chinese Patent Application No. is 200880015069.4, converting pipe (5) and the first supporting part The fixing connection of part (2) is realized by multiple bolt connection pieces (8), thus by converting pipe (5) and the first support member (2) Fix relative to car body together.The external impact born due to crushing device is bigger, it is necessary to use being circular layout as shown in Figure 2 a Numerous bolt connection pieces (8), and, due to each bolt connection piece (8) need bear bigger impact, therefore, above existing The crushing device having technology example necessarily has the disadvantages that

First, the requirement of strength of bolt connection piece (8) is high, bolt connection piece (8) corresponding in the first support member (2) and The requirement on machining accuracy of the internal thread hole of converting pipe (5) is high, thus is easily caused cost；

Second, bolt connection piece (8) is numerous, and structure is complicated；

3rd. in an assembling process, the internal thread hole between the first support member (2) and converting pipe (5) necessary is surely Really alignment, the fastening of installation one by one of numerous bolt connection pieces (8), packaging technology is complicated.

In view of this, it is necessary to propose a kind of novel crushing device.

Utility model content

For solving above technical problem, existing crushing device is improved to propose a kind of structure letter by this utility model List, low cost, crushing device simple for assembly process.

According to one side of the present utility model, it is provided that a kind of crushing device, including converting pipe, for external impact force is passed It is handed to the pressure-producing part of described converting pipe, for the mounting seat being fixed on the car body of vehicle by described crushing device, described change The hitch side end of shape pipe is fixed in described mounting seat, and the car body side end of described pressure-producing part is placed in described converting pipe； Wherein, described crushing device also includes:

Having externally threaded baffle ring, it is threadeded with the internal thread hole of the hitch side end of described mounting seat；And

Rotation-preventing mechanism, it is used for stoping described pressure-producing part to rotate relative to described mounting seat with converting pipe；

Wherein, the car body side end of described mounting seat is provided with the protuberance of the most described internal thread hole convex, described change The hitch side end of shape pipe is provided with male part, and the male part of described converting pipe is axially defined described baffle ring and described Between the protuberance of mounting seat.

According to the crushing device of this utility model one embodiment, wherein, the both sides of the male part of described converting pipe respectively by Described baffle ring is directly or indirectly kept out with the protuberance of described mounting seat so that the relative described mounting seat of described converting pipe exists It is axially defined.

According to the crushing device of this utility model one embodiment, wherein, described baffle ring is additionally operable to pressurization part described in backstop Part offsets with described pressure-producing part to hitch side shifting, the car body side end of described baffle ring.

Specifically, described pressure-producing part is provided with the hitch side of annular boss, described baffle ring and described annular boss End face keep out mutually.

According to the crushing device of this utility model one embodiment, wherein, the most described mounting seat of described rotation-preventing mechanism is by footpath Arrange to ground.

Specifically, described rotation-preventing mechanism includes:

Anti-rotation bolt；

The pin hole radially arranged in described mounting seat；

The first anti-rotation feature that the hitch side end of described converting pipe is arranged；And

The second anti-rotation feature arranged on described pressure-producing part；

Wherein, to be at least partially inserted into described pin hole, the first anti-rotation feature and second anti-simultaneously for described anti-rotation bolt In rotation feature.

Alternatively, described first anti-rotation feature is U-shaped hole or mounting hole, and wherein this U-shaped hole is opposite in hitch side opening； Described second anti-rotation feature is the U-type groove being opposite in hitch side opening.

Alternatively, described anti-rotation bolt is screw, and described pin hole is correspondingly arranged on female thread, and described screw is correspondingly arranged There is pad.

Alternatively, the protuberance of described mounting seat is annular boss structure.

According to the crushing device of this utility model a further embodiment, wherein, described crushing device also includes guide member, its Recline the inner surface of reducer of described converting pipe and arrange, and be used for guiding described pressure-producing part at outside impact force action Substantially move along the axial of described converting pipe towards car body side down.

Alternatively, described guide member is connected with the car body side end interference fit of described pressure-producing part.

Alternatively, described baffle ring is kept out in converting pipe at least through pressure-producing part, described pressure-producing part described in backstop again Wall, makes the hitch side one side of described baffle ring and the male part of described converting pipe indirectly keep out, and, the hitch of described converting pipe There is between side end and described baffle ring gap in the axial direction.

In the crushing device of any embodiment before, the hitch side end of described pressure-producing part be provided with for hitch The trunnion that buffer is pivotally connected.

In the crushing device of any embodiment before, the vehicle body-side end being placed in described converting pipe of described pressure-producing part The maximum outside diameter in portion is more than the internal diameter of described baffle ring.

In the crushing device of any embodiment before, described crushing device also include at described baffle ring with described Mounting seat threaded fixing after described baffle ring is locked against only its locking member rotated relative to described mounting seat.

Being provided with multiple lobe in the one side of the hitch in opposite directions of described baffle ring, the first end of described locking member is limited Position is between adjacent described lobe, and the second end of described locking member is fixed in described mounting seat.

According to another aspect of the present utility model, it is provided that a kind of hitch buffer system, including hitch, coupler draft gear and Crushing device described in any of the above item.

Crushing device of the present utility model uses baffle ring converting pipe, pressure-producing part and mounting seat to be tightened together, Thus backstop converting pipe is mounted opposite moving axially of seat, and using rotation-preventing mechanism to prevent, pressure-producing part is relative with converting pipe pacifies Dress seat rotates, and backstop is moved axially and prevents to rotate and realized by different parts respectively, enables baffle ring to substitute prior art In multiple bolt connection pieces that requirement on machining accuracy is high, packaging technology is complicated.Therefore, overall structure is simple, and, baffle ring Low Deng intensity height, the requirement on machining accuracy of parts, it is easily worked realization, crushing device low cost；In particular, crushing device is whole Body is simple for assembly process.

Accompanying drawing explanation

From combine accompanying drawing described further below, it will make above and other purpose of the present utility model and advantage more The clearest, wherein, same or analogous key element is adopted and is indicated by the same numeral.

Fig. 1 is the cross-sectional view of the crushing device according to this utility model one embodiment.

Fig. 2 is the perspective view from hitch side-looking angle of the crushing device according to this utility model one embodiment.

Fig. 3 is the perspective view from car body side visual angle of the crushing device according to this utility model one embodiment.

Fig. 4 is the decomposing schematic representation of the crushing device according to this utility model one embodiment.

Fig. 5 is the baffle ring schematic diagram of the crushing device according to this utility model one embodiment, and wherein Fig. 5 (a) is main regarding Figure, Fig. 5 (b) is the Section A-A schematic diagram in Fig. 5 (a).

Fig. 6 is the mounting seat schematic diagram of the crushing device according to this utility model one embodiment, and wherein Fig. 6 (a) is main regarding Figure, 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).

Detailed description of the invention

Be described below is some in multiple possible embodiment of the present utility model, it is desirable to provide to of the present utility model Basic understanding, it is no intended to confirm of the present utility model crucial or conclusive key element or limit scope of the claimed.Easily Understand, according to the technical solution of the utility model, under not changing connotation of the present utility model, the general technology of this area Personnel can propose other implementations that can mutually replace.Therefore, detailed description below and accompanying drawing are only to this reality With the exemplary illustration of novel technical scheme, and be not to be construed as of the present utility model all or be considered as this utility model Defining or limiting of technical scheme.

In explained below, clear and simple and clear for describe, all multiple parts shown in figure are not retouched State.The disclosure being fully able to and realizing of the present utility model is provided for those of ordinary skill in the art shown in the drawings of multiple parts Content.To those skilled in the art, many parts are all to be familiar with 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 can be according to pressure The change in orientation that device of bursting is put and correspondingly change.Further, in this article, " hitch side " refers to that crushing device exists Near one end of hitch during actually used, " car body side " refers to that crushing device is in actual use near the car of vehicle Body one end.

Fig. 1 show the cross-sectional view of the crushing device according to this utility model one embodiment；Fig. 2 show by The perspective view from hitch side-looking angle according to the crushing device of this utility model one embodiment；Fig. 3 show according to this The perspective view from car body side visual angle of the crushing device of utility model one embodiment；Fig. 4 show according to this practicality The decomposing schematic representation of the crushing device of a novel embodiment；Fig. 5 show the crushing device according to this utility model one embodiment Baffle ring schematic diagram, 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 by According to the mounting seat schematic diagram of the crushing device of this utility model one embodiment, wherein Fig. 6 (a) is front view, and Fig. 6 (b) is Fig. 6 A the section B-B schematic diagram in (), Fig. 6 (c) is the C-C schematic cross-section in Fig. 6 (a).Below in conjunction with Fig. 1 to Fig. 6 to this practicality The crushing device 10 of new embodiment is described in detail.

Crushing device 10 may be mounted on the car body of rail vehicle, for example, it is possible to be arranged on the headstock of EMU Position, for absorbing the impact energy that improper impact produces, prevents vehicle damage and improves the safety of vehicle.It will be appreciated that Arriving, the crushing device 10 of this utility model embodiment is also applied in the vehicle of other similar rail vehicle operating modes.First combine Shown in Fig. 1 to Fig. 4, in this embodiment, crushing device 10 mainly includes pressure-producing part 110, mounting seat 120, baffle ring 130, the parts such as anti-rotation bolt 140 and converting pipe 160, alternatively, it is also possible to include being placed in converting pipe 160 and with pressurization The guide member 150 that parts 110 connect.It should be noted that in crushing device 10 in addition to anti-rotation bolt 140 with top Part, according to it at installation position, all can define its car body side end and hitch side end.

Continuing shown in Fig. 1 to Fig. 4, in conjunction with as shown in Figure 6, mounting seat 120 is used for fixing other of installation crushing device 10 Parts, and make crushing device 10 be integrally attached on the car body of vehicle.In one embodiment, mounting seat 120 is to pass through high intensity Fastening bolt (not shown) fix, accordingly, mounting seat 120 is provided with some through holes 121.Baffle ring 130 Outer peripheral face is provided with external screw thread, and correspondingly, the hitch side end 120a of mounting seat 120 is additionally provided with bigger internal thread hole 124； The aperture of internal thread hole 124 matches with the external diameter of baffle ring 130, thus baffle ring 130 can be easily from hitch side end 120a is screwed in mounting seat and is screwed connection.

Further, the car body side end 120b of mounting seat 120 is additionally provided with the protuberance 123 of relative internal thread hole 124 convex, Specifically, this protuberance 123 can be, but not limited to as annular boss structure, for example, it is also possible to be provided separately for two or more Projection cube structure.When should be appreciated that employing annular boss structure, its machining is relatively easy.

Further, the upper end of mounting seat 120 is provided with pin hole 122, and it is used for anti-rotation bolt 140 of planting, in this enforcement In example, pin hole 122 is radially arranged, and the external diameter of the pore size correspondence anti-rotation bolt 140 of pin hole 122 is arranged.Pin hole 122 internal thread holes 124 longitudinally penetrating mounting seat 120 to mounting seat 120.In one embodiment, anti-rotation bolt 140 can but Being not limited to tighten fixing screw, now, the upper end of pin hole 122 can arrange counter sink, and pin hole 122 correspondence sets It is equipped with female thread, thus, this screw can be screwed in this pin hole 122 and fasten.

Continuing shown in Fig. 1 to Fig. 4, converting pipe 160 is substantially annulus tubular structure, and it includes hitch side end 160a and car End, side 160b, wherein, hitch side end 160a is installed in mounting seat 120, and can accommodate the car of pressure-producing part 110 End, side 110b.The hitch side end 160a of converting pipe 160 is provided with male part 161, and the external diameter of this male part 161 is more than peace The internal diameter of the protuberance 123 of dress seat 120；Further, the external diameter of baffle ring 130 is more than the hitch side end 160a's of converting pipe 160 The external diameter of male part 161；It is placed between the protuberance 123 of baffle ring 130 and mounting seat 120 in the male part 161 of converting pipe 160 Time, by tightening baffle ring 130, the male part 161 of the hitch side end 160a of converting pipe 160 can be axially defined Between the protuberance 123 of baffle ring 130 and mounting seat 120.Specifically, see Fig. 1, the hitch side end 160a of converting pipe 160 Male part 161 towards the one side of car body and the protuberance 123 of mounting seat 120 is close to and is kept out by this protuberance 123, thus Stoping converting pipe 160 to move to car body side, the one side towards hitch of the male part 161 of converting pipe 160 can be straight with baffle ring 130 Ground connection or indirectly offset and the baffle ring 130 that is fixed in mounting seat 120 stops to hitch side shifting.Therefore, converting pipe 160 are axially defined relative to mounting seat 120.

In one embodiment, the male part 161 of converting pipe 160 towards hitch one side be fastened in mounting seat 120 Baffle ring 130 directly keep out；In another embodiment, the one side towards hitch of the male part 161 of converting pipe 160 and fastening Baffle ring 130 in mounting seat 120 is kept out indirectly, specifically, as it is shown in figure 1, pressurization part can be kept out by baffle ring 130 The hitch side one side of the annular boss 113 arranged on part 110, thus backstop pressure-producing part 110 is to hitch side shifting, and then deformation The pressurized parts of pipe 160 110 keep out (because the inner surface of reducer 162 of converting pipe 160 with guide member 150 in axial phase Support and then pressurized parts 110 kept out), thus realize indirectly keeping out, now, baffle ring 130 and the male part of converting pipe 160 Male part 161 that baffle ring 130, converting pipe 160 in axially arranged certain gap, can be advantageously reduced between 161 etc. zero The requirement on machining accuracy of parts surface.

It should be noted that " directly keeping out " herein refers to directly contact between two parts mutually kept out phase interaction Keeping out with realization, " indirectly keeping out " herein refers between mutually keep out two parts and is not directly contacted with but pass through One or more member conducts effects realize keep out, such as, between two parts indirectly kept out, pad is set, the most such as more than Guide member 150, pressure-producing part 110 that embodiment discloses realize keeping out work between converting pipe 160 and baffle ring 130 indirectly With.

Further, the pin hole 122 in the hitch side end 160a correspondence mounting seat 120 of converting pipe 160 is provided with first Anti-rotation feature 163, the first anti-rotation feature 163 can be the U-shaped hole of radial penetration converting pipe 160, and this U-shaped hole is opposite in car Hook side arranges U-shaped opening, facilitates the assembling of converting pipe.In another alternative embodiment, the first anti-rotation feature 163 can also be Mounting hole, mounting hole is axially arranged on the tube wall of converting pipe 160.Specifically, as the U-shaped hole of the first anti-rotation feature 163 Or mounting hole is substantially aligned with the pin hole 122 of mounting seat 120, the anti-rotation bolt 140 being screwed into, such as screw, can stretch into this U In shape hole or mounting hole, thus prevent converting pipe 160 to be mounted opposite seat 120 and rotate.Should be appreciated that the first anti-rotation feature 163 Concrete structure design do not limited by this utility model above example, such as, in other embodiments, the first anti-rotation feature 163 can also be anti-rotation gap or anti-rotation through hole.

Further, seeing Fig. 1, the internal diameter of converting pipe 160 is inconsistent, and it is provided with reducer 162, at this reducer 162, the diameter of converting pipe 160 is gradually reduced from the lateral car body side of hitch, therefore, and the hitch side end 160a's of converting pipe 160 Internal diameter is greater than the internal diameter of its car body side end 160b.

Continuing shown in Fig. 1 to Fig. 4, pressure-producing part 110 is the parts of the coupler draft gear (not shown) outside connection, External impact force is transferred to converting pipe 160 by it.Specifically, the hitch side end 110a of pressure-producing part 110 be provided with for The trunnion 111 that coupler draft gear is pivotally connected, therefore, in actual use, coupler draft gear may drive pressure-producing part 110 very It is mounted opposite seat 120 to converting pipe 160 to rotate at its circumferencial direction, for preventing this rotation, corresponding setting on pressure-producing part 110 Having the second anti-rotation feature 112, this second anti-rotation feature 112 specifically can be provided in the annular boss of pressure-producing part 110 In structure, the second anti-rotation feature 112 can be, but not limited to the U-type groove for being opposite in hitch side opening.This U-type groove and converting pipe The U-shaped hole of 160 or mounting hole 163, mounting seat 120 pin hole 122 three at substantially longitudinal alignment, the anti-rotation bolt being screwed into 140(such as screw) can continue to stretch in this U-type groove through U-shaped hole or mounting hole, thus prevent pressure-producing part 110 from relatively pacifying Dress seat 120 rotates.Preferably, corresponding anti-rotation bolt 140(such as screw) one or more pad 141 can be installed, make anti-rotation Latch 140(such as screw) be mounted opposite seat 120 fastening effect more preferable.

Should be appreciated that the concrete structure design of the second anti-rotation feature 112 is not limited by this utility model above example, Such as, in other embodiments, the second anti-rotation feature 112 can also be anti-rotation chamber.

In above example, pin hole 122 that anti-rotation bolt 140, mounting seat 120 are radially arranged, converting pipe 160 The second anti-rotation feature 112 arranged on first anti-rotation feature 163 of upper setting and pressure-producing part 110 is mainly constituted The rotation-preventing mechanism being arranged in crushing device 10 of this utility model one embodiment.It will be appreciated that can from embodiment The lower deformation of teaching obtain the anti-rotation structure of other various embodiments, such as, the first anti-rotation feature 163 can also be screwed hole Or other opening in addition to U-shaped hole；The most such as anti-rotation bolt can also be bearing pin, is provided with again and prevents bearing pin in mounting seat Outbound cover plate etc. in improper impact；When described anti-rotation bolt is bearing pin, the inner surface of described pin hole is without right Female thread should be set.Describe in detail the most one by one at this.And it will be appreciated that the application individually uses rotation-preventing mechanism to prevent pressure-producing part With converting pipe be mounted opposite seat rotate rather than depend on baffle ring 130(baffle ring 130 be mainly used to backstop and move axially), Multiple bolt connection pieces that requirement on machining accuracy of the prior art is high so that baffle ring can substitute, packaging technology is complicated, Fully demonstrating the application overall structure simple, the intensity of the parts such as baffle ring is high, requirement on machining accuracy is low, is easily worked reality Existing, crushing device low cost；The especially simple outstanding advantages of overall package technique of crushing device.

In one embodiment, guide member 150 is connected with the car body side end 110b interference fit of pressure-producing part 110, this Sample, before baffle ring 130 is installed, can load overall to guide member 150 and pressure-producing part 110 in converting pipe 160, and And, the impulsive force of pressure-producing part 110 transmission can be further transferred to guide member 150, and then acts on the interior of converting pipe 160 On wall.The car body side end 110b of pressure-producing part 110 is installed in converting pipe 160 together with guide member 150, wherein, guides Parts 150 recline the inner surface of reducer 162 of converting pipe 160, the external peripheral surface of the annular boss structure of pressure-producing part 110 Recline the inner surface of hitch side end 160a of converting pipe 160.See Fig. 1, being placed in converting pipe 160 of pressure-producing part 110 The maximum outside diameter of car body side end 110b is more than the internal diameter of baffle ring 130, so, after baffle ring 130 is installed and is fixed, and baffle ring 130 can stop pressure-producing part 110 to hitch side shifting.Therefore, by tightening baffle ring 130, can by converting pipe 160, add Splenium part 110 and mounting seat 120 tighten together.

It should be noted that the reducer 162 of converting pipe 160 can also transmit counteracting force to guide member 150, such as It is axially toward the counteracting force of hitch side, this counteracting force and then guide member 150, pressure-producing part can be transferred to successively 110, and act on baffle ring 130 by the annular boss 113 of pressure-producing part 110, now, baffle ring 130 can also backstop Pressure-producing part 110 is axially to hitch side shifting, and also backstop converting pipe 160 is axially to hitch side shifting.

In other embodiments, guide member 150 can also be processed to form integratedly with pressure-producing part 110.But, will reason Solving, the relative pressure-producing part 110 of guide member 150 separates, and it is the easiest to process.In one embodiment, guide member 150 Hitch side end has relatively thick wall thickness.

Continuing as in figure 2 it is shown, in one embodiment, crushing device 10 also includes that locking member 142, locking member 142 are used In baffle ring 130 threaded with mounting seat 130 fixing after this baffle ring 130 is only locked against that it is mounted opposite seat 120 Rotate.Specifically, can some lobe 131 be set in the one side of the hitch in opposite directions of baffle ring 130, locking member 142 One end is limited between adjacent projections 131 in the groove formed, and the other end of locking member 142 is solid by bolt 143 grade It is scheduled in mounting seat 120.So, locking member 142 can stop baffle ring 130 to be mounted opposite seat 120 turns in the course of the work Dynamic, especially it is mounted opposite seat 120 thread looseness.

In the crushing device 10 of above example, in work uses, if it occur that improper external impact, this impact Power will be transmitted to pressure-producing part 110, and pressure-producing part 110 is further transferred to guide member 150, and transmission acts on change further On shape pipe 160, especially acting on reducer 162, after impulsive force exceedes predetermined value, converting pipe 160 will be opened from reducer 162 Begin expand and plastic deformation occurs, namely converting pipe 160 is produced conquassation effect, thus absorb this huge impact energy, because of This, it is ensured that rail vehicle safety under improper impact operating mode also makes the car body of rail vehicle from damage.Deformation Pipe 160 is used as conquassation body in the crushing device 10 of this utility model embodiment.

It is pointed out that during crushing device 10 is by this impact, on the one hand, baffle ring 130 can be with installation The protuberance 123 of seat 120 coordinates restrained deformation pipe 160 to be well mounted opposite moving axially of seat 120, the most only allows pressurization Parts 110, guide member 150 move relative to car body side.On the other hand, anti-rotation bolt 140 can stop pressurization part well Part 110 and converting pipe 160 are mounted opposite seat 120 and rotate.

The crushing device 10 of above example uses numerous bolts even without using the energy absorption device of background technology such as Fitting (8), thus avoid the problem brought by this bolt connection piece (8), it is not required that corresponding processing essence on converting pipe Degree requires high internal thread hole.Baffle ring 130 overall structure is simple, owing to its size is significantly greater than in background technology the spiral shell used Tethering fitting (8), the installation accuracy of the internal thread hole 124 of its accuracy of screw machining and mounting seat 120 is also readily obtained guarantee, adds Work is simple, and meanwhile, anti-rotation bolt 140 is also easily worked realization, and therefore, overall structure is simple, low cost.

Simultaneously it should also be understood that the coarse scale structures of baffle ring 130 causes it when threadeding with mounting seat, can hold By axial greater impact, intensity fully meets the requirement of crushing device, and then to mounting seat 120, baffle ring 130, converting pipe The requirement on machining accuracy of 160 reduces further.

The more important thing is, the packaging technology of the crushing device 10 of above example can become simply and readily to realize, tool Body will be understood during crushing device 10 assemble method of following example.

The assemble method of the crushing device 10 of this utility model embodiment mainly comprises the following steps:

First, the hitch side end 160a of converting pipe 160 is installed in mounting seat 120.

Further, the position of regulation converting pipe 160, make the first anti-rotation feature 163 and the mounting seat 120 of converting pipe 160 Pin hole 122 align, be screwed into the screw as anti-rotation bolt 140 but do not tighten.

Further, guide member 150 interference fit is connected the car body side end 110b of pressure-producing part 110.

Further, the guide member 150 interference fit connected and pressure-producing part 110 are as an entirety, from deformation The hitch side end 160a of pipe 160 loads in converting pipe 160, at least makes guide member 150 recline the reducing of described converting pipe 160 The inner surface of section 162.

Further, the position of regulation pressure-producing part 110 makes the second anti-rotation feature 112 and converting pipe of pressure-producing part 110 First anti-rotation feature 163 of 160 is substantially aligned, continues to be screwed into screw until tightening completely；Now, this screw and pressure-producing part 110 contact with converting pipe 160, can limit the rotation relative to mounting seat 120 of pressure-producing part 110 and converting pipe 160.

Further, baffle ring 130 is screwed the hitch side end 120a to mounting seat 120 is installed, until and pressure-producing part Annular boss 113 phase of 110 is kept out, so that the side of the male part 161 of converting pipe 160 and baffle ring 130 are kept out, outward indirectly The protuberance 123 of the opposite side of protuberance 161 and mounting seat 120 is directly kept out.

So far, the most assembled formation of crushing device 10.

During assembled above, there is not the alignment procedure one by one of the screwed hole between mounting seat and converting pipe, do not exist The installation process one by one of bolt connection piece, it is simple that baffle ring 130 screws installation process, and the second anti-rotation feature 112, first Anti-rotation feature 163 is simple with aliging of pin hole 122, and tightening of anti-rotation bolt 140 is installed also simply, therefore, and overall package Technique is simple.

The crushing device 10 of this utility model above example can apply in the hitch buffer system of rail vehicle, should Hitch buffer system includes that hitch, coupler draft gear and crushing device 10, hitch, coupler draft gear, crushing device 10 connect successively Being connected together, coupler draft gear plays cushioning effect the most in normal conditions, and crushing device 10 mainly can absorb and pass from hitch The impact energy of the improper impact operating mode passed, the particular type of hitch and coupler draft gear is not restrictive.

Example above primarily illustrates crushing device of the present utility model and assemble method thereof and hitch buffer system. Although only embodiment of the present utility model to some of them is described, but those of ordinary skill in the art should Solving, this utility model can be implementing, such as, by guide member with other forms many with in scope without departing from its spirit 150 conversion are set to the conquassation rings such as conical ring, guide member 150 is integrally connected setting with pressure-producing part 110, increase arranges anti- Turn the quantity etc. of latch 140.Therefore, the example shown and embodiment are considered illustrative and not restrictive, not In the case of departing from this utility model spirit and scope as defined in appended claims, this utility model may be contained respectively The amendment planted and replacement.

Claims (17)

1. a crushing device (10), including converting pipe (160), for being transferred to described converting pipe (160) by external impact force Pressure-producing part (110), for mounting seat (120) that described crushing device (10) is fixed on the car body of vehicle, described change The hitch side end (160a) of shape pipe (160) is fixed in described mounting seat (120), the car body side of described pressure-producing part (110) End (110b) is placed in described converting pipe (160)；It is characterized in that, described crushing device (10) also includes:

There is externally threaded baffle ring (130), the internal thread hole of its hitch side end (120a) with described mounting seat (120) (124) threaded；And

Rotation-preventing mechanism, it is used for stoping described pressure-producing part (110) to rotate relative to described mounting seat (120) with converting pipe (160)；

Wherein, the car body side end (120b) of described mounting seat (120) is provided with the convex of the most described internal thread hole (124) convex Going out portion (123), the hitch side end (160a) of described converting pipe (160) is provided with male part (161), described converting pipe (160) Male part (161) be axially defined between the protuberance (123) of described baffle ring (130) and described mounting seat (120).

2. crushing device (10) as claimed in claim 1, it is characterised in that the male part (161) of described converting pipe (160) Both sides are directly or indirectly kept out by the protuberance (123) of described baffle ring (130) and described mounting seat (120) respectively, so that Described converting pipe (160) is axially defined relative to described mounting seat (120).

3. crushing device (10) as claimed in claim 1, it is characterised in that described baffle ring (130) is additionally operable to described in backstop Pressure-producing part (110) offsets with described pressure-producing part (110) to hitch side shifting, the car body side end of described baffle ring (130).

4. crushing device (10) as claimed in claim 3, it is characterised in that described pressure-producing part is provided with annular on (110) 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 most described mounting seat of described rotation-preventing mechanism (120) it is arranged radially.

6. the crushing device (10) as described in claim 1 or 5, it is characterised in that described rotation-preventing mechanism includes:

Anti-rotation bolt (140)；

The pin hole (122) radially arranged in described mounting seat (120)；

The first anti-rotation feature (163) that the hitch side end (160a) of described converting pipe (160) is arranged；And

Upper the second anti-rotation feature (112) arranged of described pressure-producing part (110)；

Wherein, described anti-rotation bolt (140) is at least partially inserted into described pin hole (122), the first anti-rotation feature simultaneously (163) in and the second anti-rotation feature (112).

7. crushing device (10) as claimed in claim 6, it is characterised in that described first anti-rotation feature (163) is U-shaped hole Or mounting hole, wherein this U-shaped hole is opposite in hitch side opening；Described second anti-rotation feature (112) is opened for being opposite in hitch side The U-type groove of mouth.

8. crushing device (10) as claimed in claim 6, it is characterised in that described anti-rotation bolt (140) is screw, described slotting Pin-and-hole (122) is correspondingly arranged on female thread, and described screw is correspondingly arranged on pad (141).

9. crushing device (10) as claimed in claim 1, it is characterised in that the protuberance (123) of described mounting seat (120) is Annular boss structure.

10. the crushing device (10) as described in claim 3 or 4, it is characterised in that described crushing device (10) also includes guiding Parts (150), the inner surface of the reducer (162) of its described converting pipe (160) that recline and arrange, and add described in being used for guiding Splenium part (110) is basic axial movement the along described converting pipe (160) under outside impact force action towards car body side.

11. crushing devices (10) as claimed in claim 10, it is characterised in that described guide member (150) and described pressurization Car body side end (110b) interference fit of parts (110) connects.

12. crushing devices (10) as described in claim 1 or 2 or 3, it is characterised in that described baffle ring (130) at least through Pressure-producing part described in backstop (110), described pressure-producing part (110) keep out converting pipe inwall again, make described baffle ring (130) and institute The hitch side one side of the male part (161) stating converting pipe (160) is kept out indirectly, and, the hitch side of described converting pipe (160) Between portion (160a) and described baffle ring (130), there is gap in the axial direction.

13. crushing devices (10) as claimed in claim 1, it is characterised in that the hitch side end of described pressure-producing part (110) (110a) it is provided with the trunnion (111) for being pivotally connected with coupler draft gear.

14. crushing devices (10) as described in claim 3 or 4, it is characterised in that described pressure-producing part (110) be placed in institute The maximum outside diameter stating the car body side end (110b) in converting pipe (160) is more than the internal diameter of described baffle ring (130).

15. crushing devices (10) as claimed in claim 1, it is characterised in that described crushing device (10) also include for Described baffle ring (130) threaded with described mounting seat (130) fixing after described baffle ring (130) is locked against only its phase The locking member (142) that described mounting seat (120) is rotated.

16. crushing devices (10) as claimed in claim 15, it is characterised in that the hitch in opposite directions of described baffle ring (130) Being provided with multiple lobe (131) on Yi Mian, the first end of described locking member (142) is limited in adjacent described lobe (131), between, the second end of described locking member (142) is fixed in described mounting seat (120).

17. 1 kinds of hitch buffer systems, including hitch, coupler draft gear and as according to any one of claim 1 to 16 Crushing device (10).