CN210027437U

CN210027437U - Multistage side buffer device

Info

Publication number: CN210027437U
Application number: CN201920615411.XU
Authority: CN
Inventors: 黄科; 钟波; 王骏; 钟鑫; 周保君; 罗昌杰; 崔邓奇
Original assignee: Qian Hangda Science And Technology Ltd Of Shenzhen
Current assignee: Qian Hangda Science And Technology Ltd Of Shenzhen
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-02-07
Anticipated expiration: 2029-04-30

Abstract

The utility model provides a multi-stage side buffer device, which comprises an elastic buffer mechanism, a buffer mechanism and a buffer mechanism, wherein the elastic buffer mechanism comprises a telescopic shell and an elastic component which can elastically deform, and the elastic component is accommodated in an inner cavity of the shell; and the plastic energy absorption mechanism comprises a mounting flange and a collapsible energy absorption assembly, one end of the energy absorption assembly is fixedly connected with the mounting flange, and the other end of the energy absorption assembly is detachably connected with one end of the shell. The utility model discloses an elastic buffer mechanism and plasticity energy-absorbing mechanism establish ties, can adjust multistage side buffer's whole size through changing elastic buffer mechanism and/or plasticity energy-absorbing mechanism, and then satisfy the demand of concrete operating mode, when bumping, with the energy-absorbing subassembly mode of crumpling deformation absorbed energy that contracts replace metal casing plastic deformation absorbed energy, and then only need change the energy-absorbing subassembly after the energy-absorbing is accomplished, thereby the whole size of having solved the side buffer needs the customization according to concrete operating mode, and metal casing accomplishes the unable reuse's behind the energy-absorbing problem.

Description

Multistage side buffer device

Technical Field

The utility model belongs to the technical field of passive safety device, more specifically say, relate to a multistage side buffer.

Background

The side buffer is widely applied to regions such as Europe, southeast Asia and the middle east and the like which adopt UIC (International railway Union) standards, a threaded coupler and the side buffer are usually combined and matched between two adjacent train bodies of a train, and the threaded coupler can only bear tensile load and cannot bear compressive load, so that the side buffer is required to absorb energy generated by coupling impact under working conditions such as vehicle coupling and the like.

At present, the side buffers commonly used in the market generally comprise an elastic buffer part and a plastic deformation part, wherein the elastic buffer part is accommodated in the plastic deformation part, the whole size needs to be customized according to specific working conditions, and the rapid matching cannot be realized; the elastic buffer part is composed of elastic elements such as an elastic body and a rubber sheet, the plastic deformation part is a metal shell, the energy absorption and buffering functions of the side buffer are mainly realized by adopting a mode of elastic deformation of the elastic body and plastic deformation of the metal shell, namely, when the vehicle is in accidental collision, the elastic elements of the multi-stage side buffer device absorb energy, when the impact force exceeds a certain threshold value, the metal shell of the multi-stage side buffer device is subjected to plastic deformation energy absorption, and after the energy absorption is finished, the metal shell is damaged and cannot be reused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multistage side buffer, including but not limited to the whole size of solving the side buffer need according to concrete operating mode customization and metal casing accomplish unable reuse's after the energy-absorbing technical problem.

In order to solve the above technical problem, an embodiment of the utility model provides a multistage side buffer, include:

the elastic buffer mechanism comprises a telescopic shell and an elastic assembly capable of elastically deforming, and the elastic assembly is accommodated in the inner cavity of the shell; and

plasticity energy-absorbing mechanism, including mounting flange and the energy-absorbing subassembly of the energy-absorbing that contracts of can bursting, the one end of energy-absorbing subassembly with mounting flange fastening connection, the other end of energy-absorbing subassembly with the connection can be dismantled to the one end of shell.

Further, the housing includes:

an anti-collision plate;

the first connecting plate is fixedly connected with one end of the energy absorption assembly;

the first end of the first guide cylinder is fixedly connected with the anti-collision plate; and

and the first end of the second guide cylinder extends into the first guide cylinder from the second end of the first guide cylinder and can slide along the axial direction of the first guide cylinder, and the second end of the second guide cylinder is fixedly connected with the first connecting plate.

Further, the housing further comprises:

the guide cup is convexly arranged on the inner surface of the first connecting plate;

the elastic assembly includes:

one surface of the first fixing ring is abutted to the anti-collision plate;

one end of the first guide pipe is fixedly connected with the first fixing ring, and the other end of the first guide pipe penetrates through the cup wall of the guide cup and extends into the guide cup; and

the elastic body is sleeved on the first guide pipe, one end of the elastic body abuts against the other surface of the first fixing ring, and the other end of the elastic body abuts against the cup wall of the guide cup.

Optionally, the housing further comprises:

the guide cup is convexly arranged on the inner surface of the anti-collision plate;

the elastic assembly includes:

one surface of the first fixing ring is abutted with the first connecting plate;

Further, the elastomer includes:

a plurality of elastic sub-bodies; and

and the partition plates are respectively clamped between the elastic split bodies and the first fixing ring, between two adjacent elastic split bodies and at intervals between the elastic split bodies and the guide cup.

Optionally, the elastic component is a cement buffer or a hydraulic buffer.

Further, the energy absorber assembly includes:

the second connecting plate is fixedly connected with the first connecting plate;

one end of the second guide pipe is fixedly connected with the second connecting plate, and the other end of the second guide pipe penetrates through the mounting flange; and

honeycomb structure, the cover is located on the second stand pipe, honeycomb structure's one end with the internal surface butt of second connecting plate, honeycomb structure's the other end with the mounting flange butt.

Optionally, the energy absorbing assembly is a crash tube or an expansion tube.

Furthermore, the outer surface of the anti-collision plate is provided with anti-climbing teeth in a cambered surface or a protruding mode, and the curvature value of the cambered surface is set to be matched with the turning radius of the track.

Furthermore, a limiting component is arranged on the first guide cylinder, a limiting groove is formed in the cylinder wall of the second guide cylinder, and one end of the limiting component extends into the limiting groove to form limiting.

The utility model provides a multistage side buffer's beneficial effect lies in: the elastic buffer mechanism and the plastic energy absorption mechanism are connected in series, the elastic buffer mechanism and the plastic energy absorption mechanism are two independent modules, the overall size of the multistage side buffer device can be adjusted by replacing the elastic buffer mechanism and/or the plastic energy absorption mechanism, the requirement of specific working conditions is further met, when collision occurs, the energy absorption assembly is matched with the elastic assembly to absorb energy generated by collision, the mode that the energy absorption assembly contracts, deforms and absorbs energy is replaced with the mode that the metal shell plastically deforms and absorbs energy, the shell and the mounting flange are prevented from being damaged, and only the energy absorption assembly needs to be replaced after the energy absorption is completed, the reutilization can be realized, so that the technical problems that the overall size of the side buffer needs to be customized according to the specific working conditions and the metal shell cannot be recycled after the energy absorption is completed are effectively solved, and the adaptation range of the multistage side buffer, the maintenance efficiency of the multi-stage side buffer device is improved, and the use cost of the multi-stage side buffer device is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic perspective view of a multi-stage side buffering device according to a first embodiment of the present invention;

fig. 2 is a schematic partial cross-sectional view of a multi-stage side buffering device according to an embodiment of the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 2.

Wherein, in the figures, the respective reference numerals:

1-multistage side buffer device, 10-elastic buffer mechanism, 20-plastic energy absorbing mechanism, 11-shell, 12-elastic component, 13-limiting component, 21-mounting flange, 22-energy absorbing component, 110-inner cavity of shell, 111-crashproof plate, 112-first connecting plate, 113-first guide cylinder, 114-second guide cylinder, 115-guide cup, 121-first fixing ring, 122-first guide pipe, 123-elastic body, 124-second fixing ring, 131-sliding block, 132-fastening piece, 221-second connecting plate, 222-second guide pipe, 223-honeycomb structural member, 224-skin, 1110-cambered surface, 1140-limiting groove, 1231-elastic split body and 1232-clapboard.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and operate, and thus are not to be construed as limiting the patent, and the specific meanings of the above terms will be understood by those skilled in the art according to specific situations. The terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The term "plurality" means two or more unless specifically limited otherwise.

It is right now that the utility model provides a multistage side buffer explains.

The first embodiment is as follows:

referring to fig. 1 and 2, the multi-stage side buffering device 1 includes an elastic buffering mechanism 10 and a plastic energy absorbing mechanism 20, wherein the elastic buffering mechanism 10 includes a stretchable outer shell 11 and an elastic component 12 capable of elastic deformation, and the elastic component 12 is accommodated in an inner cavity 110 of the outer shell; the plastic energy absorbing mechanism 20 comprises a mounting flange 21 and a collapsible energy absorbing assembly 22, one end of the energy absorbing assembly 22 is fixedly connected with the mounting flange 21, and the other end of the energy absorbing assembly 22 is detachably connected with one end of the shell 11. It can be understood that the other end of the outer shell 11 opposite to the energy-absorbing assembly 22 is an anti-collision end, the anti-collision end is used for directly bearing external impact, a mounting hole is formed in the mounting flange 21, and the plastic energy-absorbing mechanism 20 is screwed into the protected object through the mounting hole by a bolt to be tightly connected with the protected object.

When collision occurs between two adjacent vehicle bodies, one end of the shell 11 firstly bears front impact, then the shell 11 contracts under the pushing of the impact force, in the process, the elastic component 12 absorbs part of energy generated by the collision through self elastic deformation under the clamping of the shell 11 until the energy generated by the collision reaches or exceeds a certain threshold value, and the energy-absorbing component 22 continues to absorb the energy generated by the collision through self collapsing deformation under the pushing of the shell 11 until the energy generated by the collision is completely absorbed or the energy-absorbing component 22 is completely crushed; after the collision is finished, the elastic component 12 is restored to the original shape under the action of the elastic force of the elastic component, the structures of the shell 11 and the mounting flange 21 are not damaged, and the multi-stage side buffer device 1 can be recycled only by replacing the energy absorption component 22.

The utility model provides a multistage side buffer device 1, adopted elastic buffer mechanism 10 and plasticity energy-absorbing mechanism 20 to establish ties, because elastic buffer mechanism 10 and plasticity energy-absorbing mechanism 20 are two independent modules, can adjust multistage side buffer device 1's overall dimension through changing elastic buffer mechanism 10 and/or plasticity energy-absorbing mechanism 20, and then satisfy the demand of concrete operating mode, when colliding, through energy-absorbing subassembly 22 cooperation elastic subassembly 12 absorption collision produced energy, with energy-absorbing subassembly 22 crumple deformation absorption energy mode replacement metal casing plastic deformation absorption energy mode, avoided shell 11 and mounting flange 21 to be destroyed, and then only need change energy-absorbing subassembly 22 after the energy-absorbing is accomplished, can realize reuse, thereby solved effectively that the overall dimension of side buffer need according to concrete operating mode customization, and metal casing accomplishes the technical problem that can't reuse after the energy-absorbing, the adaptation range of the multi-stage side buffer device is expanded, the maintenance efficiency of the multi-stage side buffer device is improved, and the use cost of the multi-stage side buffer device is reduced.

Further, referring to fig. 1 and 2, in the present embodiment, the shell 11 includes an anti-collision plate 111, a first connection plate 112, a first guide cylinder 113, and a second guide cylinder 114, wherein the first connection plate 112 is fixedly connected to one end of the energy absorbing assembly 22, a first end of the first guide cylinder 113 is fixedly connected to the anti-collision plate 111, a first end of the second guide cylinder 114 extends into the first guide cylinder 113 from a second end of the first guide cylinder 113, the first end of the second guide cylinder 114 can slide along an axial direction of the first guide cylinder 113, and a second end of the second guide cylinder 114 is fixedly connected to the first connection plate 112. Specifically, the inner cavity 110 of the housing is formed by sleeving an inner cavity of a first guide cylinder 113 and an inner cavity of a second guide cylinder 114, one end of the elastic component 12 is accommodated in the inner cavity of the first guide cylinder 113, the other end of the elastic component 12 is accommodated in the inner cavity of the second guide cylinder 114, the first guide cylinder 113 and the anti-collision plate 111 are integrally formed, and the second guide cylinder 114 and the first connection plate 112 are integrally formed. When collision occurs, the anti-collision plate 111 bears front impact, the anti-collision plate 111 pushes the elastic component 12 to axially contract along the inner cavity 110 of the shell, the axial length of the elastic component 12 is shortened, all or part of energy generated by the collision is converted into heat energy and internal energy, the first end of the second guide cylinder 114 continuously slides into the first guide cylinder 113, the shell 11 contracts, after the collision is completed, the elastic component 12 releases the internal energy stored in the collision process, the axial length of the elastic component gradually extends, the first guide cylinder 113 is driven by the pushing anti-collision plate 111 to slide along the second guide cylinder 114, the first end of the second guide cylinder 114 moves in the direction of sliding out of the first guide cylinder 113, and the shell 11 extends.

Further, referring to fig. 2, in the present embodiment, the housing 11 further includes a guide cup 115, and the guide cup 115 is disposed on the inner surface of the first connecting plate 112 in a protruding manner; the elastic component 12 includes a first fixing ring 121, a first guide tube 122 and an elastic body 123, wherein one surface of the first fixing ring 121 abuts against the anti-collision plate 111, one end of the first guide tube 122 is fastened to the first fixing ring 121, the other end of the first guide tube 122 penetrates through the wall of the guide cup 115 and extends into the guide cup 115, the elastic body 123 is sleeved on the first guide tube 122, one end of the elastic body 123 abuts against the other surface of the first fixing ring 121, and the other end of the elastic body 123 abuts against the wall of the guide cup 115. Specifically, a positioning flange is convexly arranged on one end face of the first fixing ring 121, a positioning groove is formed in the inner surface of the anti-collision plate 111, the end face of the first fixing ring 121 abuts against the inner surface of the anti-collision plate 111, and the positioning flange extends into the positioning groove to form positioning, so that when collision occurs, radial deviation between the first fixing ring 121 and the anti-collision plate 111 is effectively prevented, and the impact force is ensured to be completely acted on the elastic body 123; a first guide hole is formed in the cup wall of the guide cup 115 parallel to the anti-collision plate 111 and the first connection plate 112, the axial length of the inner cavity of the guide cup 115 is greater than the maximum contraction stroke of the elastic body 123, one end of the first guide tube 122 penetrates through the first guide hole and extends into the inner cavity of the guide cup 115, when collision occurs, the first guide tube 122 can retreat along the axial direction of the inner cavity of the guide cup 115, so that the shell 11 is ensured to be stretched, and the elastic body 123 is guided by the first guide tube 122 to stretch along the axial direction of the inner cavity 110 of the shell.

Further, referring to fig. 2, in the present embodiment, the elastic body 123 includes a plurality of elastic splitting bodies 1231 and a plurality of partition plates 1232, wherein the partition plates 1232 are respectively interposed between the elastic splitting bodies 1231 and the first fixing ring 121, between two adjacent elastic splitting bodies 1231, and between the elastic splitting bodies 1231 and the guide cup 115. Specifically, the area of the partition 1232 is greater than or equal to the area of the end face of the elastic splitting body 1231 and less than or equal to the area of the end face of the first fixing ring 121 or the cup wall of the guide cup 115, and since the elastic splitting body 1231 is made of a rubber material, the adhesion phenomenon is easily generated under the action of mutual friction or mutual extrusion, so that the partition 1232 can prevent the adhesion between the elastic splitting bodies 1231 or between the elastic splitting body 1231 and the guide cup 115 or between the elastic splitting body 1231 and the first fixing ring 121, and can ensure that the transmission of the external force between the elastic splitting bodies 1231 or between the elastic splitting body 1231 and the guide cup 115 or between the elastic splitting body 1231 and the first fixing ring 121 is more uniform.

Further, referring to fig. 1 and fig. 2, in the present embodiment, the energy absorption assembly 22 includes a second connection plate 221, a second guide tube 222, and a honeycomb structure 223, wherein the second connection plate 221 is fastened to the first connection plate 112, one end of the second guide tube 222 is fastened to the second connection plate 221, the other end of the second guide tube 222 is disposed on the mounting flange 21 in a penetrating manner, the honeycomb structure 223 is sleeved on the second guide tube 222, one end of the honeycomb structure 223 abuts against an inner surface of the second connection plate 221, and the other end of the honeycomb structure 223 abuts against the mounting flange 21. Specifically, the second connecting plate 221 and the second guide tube 222 are integrally formed, at least two second connecting holes are formed in the second connecting plate 221, at the same time, at least two first connecting holes are formed in the first connecting plate 112, the first connecting holes correspond to the second connecting holes one to one, when the elastic buffer mechanism 10 is connected with the plastic energy absorption mechanism 20, one end of a bolt penetrates through the first connecting holes and the second connecting holes and then is in threaded connection with a nut to fasten the first connecting plate 112 and the second connecting plate 221 together, and therefore the elastic buffer mechanism 10 and/or the plastic energy absorption mechanism 20 of various specifications can be installed and replaced according to specific working condition requirements; a second guide hole is formed in the middle of the mounting flange 21, the second guide pipe 222 is arranged in the second guide hole in a penetrating manner, and when violent collision occurs, the second guide pipe 222 can exit from the second guide hole, so that the honeycomb structural member 223 is ensured to be folded along the axial direction of the second guide pipe 222; honeycomb structure 223 can be formed by metal corrugated sheet range upon range of bonding back, has high symmetry, and stable in structure is reliable, and the compression process is steady orderly, characteristics such as energy-absorbing efficiency height, certainly, according to particular case and demand the utility model discloses an in other embodiments, honeycomb structure 223 can also be made through other modes, do not do only to limit here, honeycomb structure 223 can be welded or bond with second connecting plate 221 and mounting flange 21, also can realize fixedly through covering 224 and second connecting plate 221 and mounting flange 21 welding, covering 224 wraps up in honeycomb structure 223's periphery, when taking place violent the collision, honeycomb structure 223 takes place plastic deformation along the axial of second stand pipe 222, turn into the plastic deformation ability of metal with the produced energy of collision to the risk that the protection object received the destruction has been reduced.

Further, referring to fig. 2, in the present embodiment, the outer surface of the impact plate 111 is an arc surface 1110, and the curvature value of the arc surface 1110 is set to be adapted to the track turning radius, that is, the curvature value of the arc surface 1110 is calculated by parameters such as the track turning radius. Thus, the fender panel 111 can bear loads in different directions, and can be used in cooperation with the first guide cylinder 113 for load guidance.

Further, referring to fig. 1 and fig. 3, in the present embodiment, the first guiding cylinder 113 is provided with a limiting component 13, and meanwhile, the cylinder wall of the second guiding cylinder 114 is provided with a limiting groove 1140, where one end of the limiting component 13 extends into the limiting groove 1140 to form a limiting. Specifically, the limiting component 13 includes a sliding block 131 and a fastening member 132, the sliding block 131 is in threaded connection with the fastening member 132, one end of the fastening member 132 passes through the wall of the first guiding cylinder 113 and then fixes the sliding block 131 on the inner surface of the wall of the first guiding cylinder 113, the limiting groove 1140 extends along the axial direction of the wall of the second guiding cylinder 114, and the sliding block 131 extends into the limiting groove 1140 and can slide along the extending direction of the limiting groove 1140, so that the first guiding cylinder 113 and the second guiding cylinder 114 are not hindered from sliding each other, and the reliability of connection between the first guiding cylinder 113 and the second guiding cylinder 114 can be ensured.

Example two:

the multi-stage side buffering device provided by the present embodiment is basically the same as that of the first embodiment, except that: the guide cup 115 is provided to protrude from the inner surface of the impact plate 111, and one surface of the first fixing ring 121 abuts against the first connection plate 112. Specifically, the inner surface of the first connecting plate 112 is provided with a positioning groove, the end surface of the first fixing ring 121 abuts against the inner surface of the first connecting plate 112, and the positioning flange of the first fixing ring 121 extends into the positioning groove to form positioning, so that when collision occurs, radial deviation between the first fixing ring 121 and the first connecting plate 112 is effectively prevented, and the impact force is ensured to be completely acted on the elastic body 123.

Further, referring to fig. 2, in the present embodiment, the elastic component 12 further includes a second fixing ring 124, and the second fixing ring 124 is disposed on an end of the first guiding tube 122 extending into the inner cavity of the guiding cup 115. Specifically, the outer diameter of the second fixing ring 124 is larger than the diameter of the first guide hole of the guide cup 115, so that the first guide tube 122 can be effectively prevented from being unintentionally withdrawn out of the guide cup 115.

Example three:

the multi-stage side buffering device provided by the present embodiment is basically the same as that of the first embodiment, except that: the elastic member 12 is a cement damper or a hydraulic damper. The cement buffer or the hydraulic buffer is a buffer which can restore the original shape after absorbing energy in the field.

Example four:

the multi-stage side buffering device provided by the present embodiment is basically the same as that of the first embodiment, except that: energy absorber assembly 22 is a crush tube or an expansion tube. The energy absorption is realized through the collapse deformation of the pipe fitting in the collapse pipe, the energy absorption is realized through the expansion deformation of the pipe fitting in the expansion pipe, and the collapse pipe or the expansion pipe is a buffer sleeve member with the collapse energy absorption characteristic in the field.

Example five:

the multi-stage side buffering device provided by the present embodiment is basically the same as that of the first embodiment, except that: the outer surface of the anti-collision plate 111 is convexly provided with anti-climbing teeth. Thus, when two vehicles provided with the multistage side buffering devices 1 collide, the anti-climbing teeth on the two multistage side buffering devices 1 are meshed with each other, the two vehicles can be prevented from riding and climbing mutually, and the personal safety of drivers and conductors is protected to the maximum limit.

The above are merely examples of the present invention and are not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. Multistage side buffer, its characterized in that includes:

2. The multi-stage side buffering assembly of claim 1, wherein the housing comprises:

an anti-collision plate;

3. The multi-stage side buffering assembly of claim 2, wherein the housing further comprises:

the elastic assembly includes:

one surface of the first fixing ring is abutted to the anti-collision plate;

4. The multi-stage side buffering assembly of claim 2, wherein the housing further comprises:

the elastic assembly includes:

5. The multi-stage side buffering device according to claim 3 or 4, wherein the elastic body comprises:

a plurality of elastic sub-bodies; and

6. The multi-stage side buffering device according to claim 2, wherein the elastic member is a cement buffer or a hydraulic buffer.

7. The multi-level side bumper of claim 2, wherein the energy absorber assembly comprises:

8. The multi-stage side bumper of claim 2, wherein the energy absorbing component is a crash tube or an expansion tube.

9. The multi-stage side buffering device as claimed in any one of claims 6 to 8, wherein the outer surface of the bumper plate is a cambered surface or is convexly provided with anti-climbing teeth, and the curvature value of the cambered surface is set to be matched with the turning radius of the track.

10. The multi-stage side buffering device as claimed in claim 9, wherein the first guiding cylinder is provided with a limiting component, the second guiding cylinder is provided with a limiting groove on the wall, and one end of the limiting component extends into the limiting groove to form a limiting position.