CN221135609U

CN221135609U - Clamp for damping characteristic test of anti-hunting shock absorber of high-speed train

Info

Publication number: CN221135609U
Application number: CN202322820616.0U
Authority: CN
Inventors: 李现华; 黄启伟; 王成国; 任茂森
Original assignee: Shandong Lingborui Railway Transportation Technology Co ltd
Current assignee: Shandong Lingborui Railway Transportation Technology Co ltd
Priority date: 2023-10-20
Filing date: 2023-10-20
Publication date: 2024-06-14
Anticipated expiration: 2033-10-20

Abstract

The utility model discloses a clamp for damping characteristic test of an anti-snake vibration absorber of a high-speed train, which comprises a clamp body and a clamping assembly, wherein a cavity penetrating through the upper surface of the clamp body is formed in the clamp body, and the left end of the cavity is used for installing a hanging ring of the anti-snake vibration absorber; the clamping assembly is arranged at the right end in the cavity, the clamping assembly can slide left and right along the cavity, the clamping assembly moves leftwards to clamp the lifting ring when the left end of the cavity is abutted with the lifting ring, and the clamping assembly moves rightwards to release the lifting ring when the right end of the cavity is separated from the lifting ring. The clamp for the damping characteristic test of the anti-hunting shock absorber of the high-speed train adopts ingenious mechanical structure design, utilizes surface contact clamping, does not generate relative rotation, avoids the screw from directly propping against the hanging ring, reduces the clamping time, ensures the authenticity and accuracy of the damping performance test data of the anti-hunting shock absorber, and greatly improves the damping performance test efficiency of the anti-hunting shock absorber.

Description

Clamp for damping characteristic test of anti-hunting shock absorber of high-speed train

Technical Field

The invention relates to the technical field of anti-hunting vibration absorbers of high-speed trains, in particular to a clamp for damping characteristic test of the anti-hunting vibration absorbers of the high-speed trains.

Background

In recent years, along with the rising of the high-speed rail industry in China, the development trend of the rail transportation industry in China is also increasing. The anti-hunting damper is the most critical damper in all types of dampers of the bogie of the high-speed train, and the damping characteristic plays a key role in the running stability of the high-speed train. The anti-meandering shock absorber has the largest requirement on damping force, so the requirement on the rigidity of the tool is very large when a damping characteristic test is carried out.

In the related art, when the anti-meandering shock absorber is used for a damping characteristic test, two screws and a clamping mode that a clamp body is propped against a hanging ring 01 (shown in figure 1) are used, on one hand, the hanging ring is in point contact with a contact part of the screws, the hanging ring is clamped by rotating the screws, the stress is overlarge, two pits are formed in the outer circle of the hanging ring, and the strength and the appearance of the hanging ring are reduced; on the other hand, in the damping characteristic test process, the anti-meandering shock absorber is stretched and compressed in a reciprocating manner, screws are easy to loosen, the shock absorber is not firmly clamped, and damping characteristic data of the anti-meandering shock absorber are distorted; furthermore, two screws are required to be screwed for clamping one lifting ring, so that the clamping efficiency is low.

Disclosure of Invention

The utility model aims to solve at least one of the problems of the prior art to a certain extent, and the utility model aims to provide a clamp for testing the damping characteristics of a high-speed train anti-hunting shock absorber.

The utility model is realized by the following technical scheme:

A fixture for damping characteristic testing of a high speed train anti-hunting shock absorber, comprising:

the clamp body is provided with a cavity penetrating through the upper surface of the clamp body, and the left end of the cavity is used for installing a hanging ring of the anti-snake vibration damper;

The clamping assembly is arranged at the right end in the cavity and can slide left and right along the cavity, the clamping assembly moves leftwards to clamp the lifting ring when the left end of the cavity is abutted to the lifting ring, and the clamping assembly moves rightwards to release the lifting ring when the right end of the cavity is separated from the lifting ring.

Optionally, the clamping assembly includes the removal slider, presss from both sides tight piece and fastener, it is in to remove the slider along the horizontal direction cavity side-to-side is established in the cavity, it installs to press from both sides tight piece can be in vertical direction reciprocates through the fastener in the cavity, press from both sides tight piece left end with the right-hand member butt of removal slider makes when pressing from both sides tight piece down remove the slider left side remove with rings butt, when pressing from both sides tight piece and upwards remove the slider and can slide right in order to break away from rings.

Optionally, a contact surface of the left end of the clamping block, which is abutted with the right end of the movable slider, is inclined leftwards.

Optionally, the fastener is the screw, be equipped with vertical through-hole on the clamp block, the bottom side of cavity is equipped with the screw, the screw passes vertical through-hole with the screw is connected in order to with the clamp block is connected to the bottom side of cavity, the screw moves down when the screw forward rotation makes the clamp block moves down, the screw moves up when the screw reverse rotation makes the clamp block can move up.

Optionally, an avoidance groove is formed in the right end of the moving slide block, and the avoidance groove is used for avoiding the screw when the moving slide block slides rightwards.

Optionally, a first lifting ring clamping groove is formed in the left side wall of the cavity, a second lifting ring clamping groove is formed in the left side wall of the movable sliding block, and the first lifting ring clamping groove and the second lifting ring clamping groove form a lifting ring clamping position.

Optionally, the inner side wall of the first hanging ring clamping groove and the inner side wall of the second hanging ring clamping groove are structures matched with the outer contour of the hanging ring.

Optionally, a lifting ring through hole is formed at the bottom side of the cavity, and the lifting ring through hole corresponds to the lifting ring clamping position.

Optionally, the left side wall of the movable slider is connected with the left side wall of the cavity through an elastic piece, and the bottom of the clamping block is connected with the bottom side of the cavity through an elastic piece.

Optionally, the front end of the left side wall of the movable slider is provided with a first blind hole, the rear end of the left side wall of the movable slider is provided with a second blind hole, the front end of the bottom of the clamping block is provided with a third blind hole, the rear end of the bottom of the clamping block is provided with a fourth blind hole, and the first blind hole, the second blind hole, the third blind hole and the fourth blind hole are internally provided with elastic pieces.

The beneficial effects of the utility model are as follows: the clamp for the damping characteristic test of the anti-hunting shock absorber of the high-speed train solves the technical problems that in the prior art, the screw is damaged to cause the strength of the hanging ring to be reduced, the screw is easy to loosen to cause the damping characteristic data distortion of the anti-hunting shock absorber, and the like, and has the following beneficial effects: compared with the existing clamp with two screws and clamp bodies for propping up the hanging ring, the clamp adopts ingenious mechanical structure design, is clamped by surface contact, does not generate relative rotation, avoids the screws from directly propping up the hanging ring, reduces the clamping time, ensures the authenticity and accuracy of damping performance test data of the anti-snake vibration damper, and greatly improves the damping performance test efficiency of the anti-snake vibration damper.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of a high-speed train anti-hunting damper provided in the prior art;

FIG. 2 is a schematic diagram of the overall structure of a clamp for testing the damping characteristics of a high-speed train anti-hunting shock absorber according to an embodiment of the present utility model when the clamp is provided with a suspension ring;

FIG. 3 is an assembly view of a jig for a test of damping characteristics of an anti-hunting shock absorber for a high speed train according to an embodiment of the present utility model;

FIG. 4 is a three view and a perspective view of a traveling block of a clamp for a test of damping characteristics of an anti-hunting shock absorber of a high speed train according to an embodiment of the present utility model;

FIG. 5 is a three view and a perspective view of a clamp block of a clamp for a damping characteristic test of a high speed train anti-hunting shock absorber provided according to an embodiment of the present utility model;

FIG. 6 is a three-view and a perspective view of a clamp body of a clamp for a damping characteristic test of an anti-hunting shock absorber of a high speed train according to an embodiment of the present utility model;

Wherein, 01, hanging ring; 1. a clamp body; 2. a clamping assembly; 3. an elastic member; 11. a cavity; 12. a screw hole; 13. the first hanging ring clamping groove; 14. a hanging ring through hole; 21. moving the slide block; 211. an avoidance groove; 212. the second hanging ring clamping groove; 213. a first blind hole; 214. a second blind hole; 22. a clamping block; 221. a vertical through hole; 222. a third blind hole; 223. a fourth blind hole; 23. a fastener.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.

Hereinafter, a jig for a test of damping characteristics of an anti-hunting shock absorber for a high speed train according to an embodiment of the present utility model will be specifically described with reference to fig. 1 to 6.

As shown in fig. 1, a suspension ring 01 is arranged on an anti-hunting damper in the prior art.

As shown in fig. 2, the clamp for damping characteristic test of the anti-hunting shock absorber of the high-speed train provided by the embodiment of the utility model comprises a clamp body 1 and a clamping component 2, wherein a cavity 11 penetrating through the upper surface of the clamp body 1 is arranged on the clamp body 1, and the left end of the cavity 11 is used for installing a hanging ring 01 of the anti-hunting shock absorber; the clamping assembly 2 is arranged at the right end in the cavity 11, the clamping assembly 2 can slide left and right along the cavity 11, the clamping assembly 2 moves leftwards to clamp the hanging ring 01 when the left end of the cavity 11 is abutted to the hanging ring 01, and the clamping assembly 2 moves rightwards to release the hanging ring 01 when the right end of the cavity 11 is separated from the hanging ring 01.

The cavity 11 may be of various structures suitable for mounting the hanging ring 01, and the upper side of the cavity 11 may be open or semi-open, and the clamping assembly 2 may be of various structures suitable for clamping the hanging ring 01.

Therefore, the clamp for the damping characteristic test of the anti-hunting shock absorber of the high-speed train solves the technical problems that in the prior art, the strength of a hanging ring is reduced due to damage of a screw to the hanging ring, the damping characteristic data of the anti-hunting shock absorber is distorted due to looseness of the screw, and the like, and has the advantages that: compared with the existing clamp with two screws and clamp bodies for propping up the hanging ring, the clamp adopts ingenious mechanical structure design, is clamped by surface contact, does not generate relative rotation, avoids the screws from directly propping up the hanging ring, reduces the clamping time, ensures the authenticity and accuracy of damping performance test data of the anti-snake vibration damper, and greatly improves the damping performance test efficiency of the anti-snake vibration damper.

As shown in fig. 3, optionally, the clamping assembly 2 includes a moving slide 21, a clamping block 22 and a fastening piece 23, where the moving slide 21 is disposed in the cavity 11 and can move left and right along the cavity 11 in a horizontal direction, the clamping block 22 is mounted in the cavity 11 through the fastening piece 23 and can move up and down in a vertical direction, a left end of the clamping block 22 abuts against a right end of the moving slide 21, when the clamping block 22 moves down, the moving slide 21 is made to move left and abut against the hanging ring 01, and when the clamping block 22 moves up, the moving slide 21 can slide right to be separated from the hanging ring 01.

It should be noted that the fastener 23 is of various structures suitable for mounting the clamping block 22 to the bottom side of the cavity 11, such as pins, bolts, where both the lateral and vertical directions are directions as conventionally understood in the drawing shown in fig. 1.

Therefore, the surface contact clamping of the movable sliding block 21 and the hanging ring 01 can be realized, relative rotation is not generated, and the situation that the hanging ring 01 is directly propped by a screw to damage the hanging ring 01 is avoided.

Alternatively, the contact surface of the left end of the clamping block 22 abutting against the right end of the moving slider 21 is inclined leftward.

It should be noted that the abutting contact surface is inclined leftward, the left end of the clamping block 22 has a leftward and downward force on the right end of the moving slide block 21, when the clamping block 22 moves downward, the cavity 11 below the clamping block 22 becomes smaller, the force increases so that the moving slide block 21 slides leftward, and when the clamping block 22 moves upward, the cavity 11 below increases, the force decreases so that the moving slide block 21 can slide rightward.

Thus, the vertical movement of the clamping block 22 drives the left and right movement of the moving slide block 21 to clamp or unclamp the hanging ring 01.

As shown in fig. 3 to 4, alternatively, the fastening member 23 is a screw, the clamping block 22 is provided with a vertical through hole 221, the bottom side of the cavity 11 is provided with a screw hole 12, the screw passes through the vertical through hole 221 and the screw hole 12 to connect the clamping block 22 to the bottom side of the cavity 11, the screw moves downward when the screw rotates in the forward direction so that the clamping block 22 moves downward, and the screw moves upward when the screw rotates in the reverse direction so that the clamping block 22 moves upward.

When the screw is used, the forward direction can be clockwise or anticlockwise, the forward direction and the reverse direction are opposite, the diameter of the vertical through hole 221 is slightly smaller than that of the head of the screw, and the screw hole 12 is matched with the screw.

Thus, the clamping block 22 can be conveniently mounted on the bottom side of the cavity 11 by using the screw, and the clamping block 22 can be driven to move up and down by rotating the screw.

As shown in fig. 5, optionally, an avoidance groove 211 is formed at the right end of the moving slider 21, and the avoidance groove 211 is used for avoiding the screw when the moving slider 21 slides rightward.

The clamping block 22 is on the right side of the moving slide block 21, and the screw for fixing the clamping block 22 is also on the right side of the moving slide block 21, when the moving slide block 21 slides rightward, the screw can extend into the moving slide block 21 along the avoiding groove 211, so that the right end of the moving slide block 21 can be prevented from colliding with the screw, and the moving slide block 21 continues to slide rightward until the screw abuts against the inner wall of the avoiding groove 211.

As shown in fig. 5-6, optionally, a first lifting ring clamping groove 13 is formed in the left side wall of the cavity 11, a second lifting ring clamping groove 212 is formed in the left side wall of the moving slider 21, and the first lifting ring clamping groove 13 and the second lifting ring clamping groove 212 form a lifting ring clamping position. Preferably, the inner side wall of the first hanging ring clamping groove 13 and the inner side wall of the second hanging ring clamping groove 212 are structures adapted to the outer contour of the hanging ring 01.

It should be noted that, in this embodiment, the lifting ring 01 is circular arc, and the inner side wall of the first lifting ring clamping groove 13 is also circular arc that is adapted, so that the contact area between the lifting ring 01 and the fixture can be increased, so that the clamping of the lifting ring 01 is firmer, and the authenticity and accuracy of the damping performance test data of the anti-snake vibration absorber are improved.

As shown in fig. 6, optionally, a lifting ring through hole 14 is provided at the bottom side of the cavity 11, and the lifting ring through hole 14 corresponds to the clamping position of the lifting ring 01.

It should be noted that, the side wall of the cavity 11 may be provided with a through hole that does not affect the function of the fixture, for example, a hanging ring through hole and a reserved through hole, where the hanging ring through hole may be used for observing the internal assembly condition of the fixture, and in some embodiments, the right side wall of the cavity may be provided with the reserved through hole for installing the fixture on other objects.

As shown in fig. 3-6, optionally, the left side wall of the movable slider 21 is connected with the left side wall of the cavity 11 through an elastic member 3, and the bottom of the clamping block 22 is connected with the bottom side of the cavity 11 through an elastic member 3.

It should be noted that, the elastic member 3 is various structures with elastic effects, the elastic member 3 may be a part or an assembly, the elastic member 3 may be fixedly connected or not, and in this embodiment, it is preferable that the elastic member 3 may be a spring, so that the moving slider 21 and the clamping block 22 may be automatically reset.

As shown in fig. 3-6, optionally, a first blind hole 213 is provided at the front end of the left side wall of the moving slide block 21, a second blind hole 214 is provided at the rear end of the left side wall of the moving slide block 21, a third blind hole 222 is provided at the front end of the bottom of the clamping block 22, a fourth blind hole 223 is provided at the rear end of the bottom of the clamping block 22, and the first blind hole 213, the second blind hole 214, the third blind hole 222 and the fourth blind hole 223 are all used for installing the elastic member 3.

It should be noted that, in the present embodiment, the positions of the first blind hole 213 and the second blind hole 214 are opposite, the positions of the third blind hole 222 and the fourth blind hole 223 are opposite, and each blind hole is disposed at a center position of one end.

Therefore, the positioning connection of the elastic piece 3 can be realized, the stability of the structure is improved, and the adverse effect of the structure on test data is reduced.

An optional working process of the clamp for the damping characteristic test of the anti-hunting shock absorber of the high-speed train is as follows:

Taking fig. 2-6 as an example, turning the screw clockwise, the screw moves downwards along the screw hole 12, the head of the screw drives the clamping block 22 to move downwards, the clamping block 22 moves downwards to push the movable sliding block 21 to move leftwards along the horizontal direction, and when the movable sliding block 21 abuts against the hanging ring 01, the clamp clamps the hanging ring 01; the screw is rotated anticlockwise, the screw moves upwards along the screw hole 12, the clamping block 22 moves upwards under the action of the spring, the moving slide block 21 moves rightwards under the action of the spring along the horizontal direction, and the clamp releases the hanging ring 01; the above steps are repeated, and a cycle of clamping and loosening the hanging ring 01 can be completed.

In the description of the embodiments of the present utility model, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the embodiments of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model.

Furthermore, the terms "first," "another," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality", "a number" or "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, the descriptions of the terms "one embodiment," "one example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. A clamp for testing damping characteristics of an anti-hunting shock absorber of a high speed train, comprising:

2. The clamp for testing the damping characteristics of the anti-hunting shock absorber of the high-speed train according to claim 1, wherein the clamping assembly comprises a movable slider, a clamping block and a fastening piece, the movable slider is arranged in the cavity in a horizontal direction along the cavity in a left-right direction, the clamping block is arranged in the cavity in a vertical direction in a movable manner through the fastening piece, the left end of the clamping block is abutted with the right end of the movable slider, the movable slider is abutted with the hanging ring when the clamping block moves downwards, and the movable slider can slide rightwards to be separated from the hanging ring when the clamping block moves upwards.

3. The jig for high-speed train anti-hunting damper damping characteristic test according to claim 2, wherein the contact surface where the left end of the clamping block abuts the right end of the moving slider is inclined leftward.

4. The clamp for testing the damping characteristics of the anti-hunting shock absorber of the high-speed train according to claim 2, wherein the fastening member is a screw, a vertical through hole is provided on the clamping block, a screw hole is provided on the bottom side of the cavity, the screw passes through the vertical through hole and the screw hole to connect the clamping block to the bottom side of the cavity, the screw moves downward when the screw rotates forward so that the clamping block moves downward, and the screw moves upward when the screw rotates backward so that the clamping block can move upward.

5. The fixture for testing the damping characteristics of the anti-hunting shock absorber of the high-speed train according to claim 4, wherein an avoidance groove is formed in the right end of the movable slider, and the avoidance groove is used for avoiding the screw when the movable slider slides rightwards.

6. The fixture for testing the damping characteristics of the anti-hunting shock absorber of the high-speed train according to claim 2, wherein a first hanging ring clamping groove is formed in the left side wall of the cavity, a second hanging ring clamping groove is formed in the left side wall of the movable sliding block, and the first hanging ring clamping groove and the second hanging ring clamping groove form a hanging ring clamping position.

7. The fixture for testing the damping characteristics of the anti-hunting shock absorber of a high speed train according to claim 6, wherein the inner side wall of the first sling clamping groove and the inner side wall of the second sling clamping groove are structures which are matched with the outer contour of the sling.

8. The fixture for testing the damping characteristics of the anti-hunting shock absorber of the high-speed train according to claim 6, wherein a hanging ring through hole is arranged at the bottom side of the cavity, and the hanging ring through hole corresponds to the hanging ring clamping position.

9. The clamp for testing the damping characteristics of the anti-hunting shock absorber of the high-speed train according to any one of claims 2 to 8, wherein the left side wall of the movable slide block is connected with the left side wall of the cavity through an elastic member, and the bottom of the clamping block is connected with the bottom side of the cavity through an elastic member.

10. The fixture for testing damping characteristics of a high-speed train anti-hunting shock absorber according to claim 9, wherein a first blind hole is formed in the front end of the left side wall of the movable sliding block, a second blind hole is formed in the rear end of the left side wall of the movable sliding block, a third blind hole is formed in the front end of the bottom of the clamping block, a fourth blind hole is formed in the rear end of the bottom of the clamping block, and the elastic piece is installed in each of the first blind hole, the second blind hole, the third blind hole and the fourth blind hole.