Radial and angular durability test tool for rubber bushing

By designing a two-radial-one-swing-angle durability test fixture for rubber bushings, the problem of the inability of existing technologies to meet the requirements of multi-degree-of-freedom testing was solved. This enabled multi-degree-of-freedom loading of rubber bushing products in bench tests of automotive shock absorbers, improving the accuracy and authenticity of the tests.

CN223611095UActive Publication Date: 2025-11-28SHANGHAI ZHONGLI INVESTMENT
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Patent Information

Application Number
CN202520065685.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-10
Publication Date
2025-11-28
Estimated Expiration
2035-01-10

AI Technical Summary

Technical Problem

Existing single-degree-of-freedom or two-degree-of-freedom loading tests cannot meet the requirements of rubber bushing durability tests, especially in multi-degree-of-freedom tests where simultaneous pendulum angle and two radial directions cannot be achieved.

Method used

A durability test fixture for a rubber bushing with two radial directions and one swing angle was designed, including a base, a bushing product inner tube fixing fixture, first and second linear actuator limiting auxiliary fixtures, and a simulated bushing sleeve assembly. The bushing is fixed in the axial horizontal direction by bolt connection, supporting synchronous three-degree-of-freedom loading of two linear radial directions and one swing angle.

Benefits of technology

This technology enables the simulation of multi-degree-of-freedom loading of rubber bushing products in automotive shock absorber bench tests, improving the accuracy and realism of the tests and meeting the requirements of multi-degree-of-freedom linkage loading under actual road conditions.

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Abstract

The utility model relates to a kind of two radial one swing angle durability test tool of rubber bushing, bushing product inner tube fixing tool is located on base, the lower portion of bushing product inner tube fixing tool is equipped with second linear actuator limiting auxiliary tool, second linear actuator limiting auxiliary tool top connects first linear actuator limiting auxiliary tool, and first linear actuator limiting auxiliary tool top connects simulation bushing sleeve assembly;The bushing product inner tube fixing tool of the utility model uses bolt connection to rotate the two sides of load assembly, so that bushing is fixed in axial horizontal direction, test tool is used for the test of the synchronous three degrees of freedom loading of two linear radial, one swing angle of rubber bushing product, realize the situation of the multiple degrees of freedom linkage loading of automobile shock-absorbing product test bench simulation actual road condition, greatly improve the accuracy of rubber bushing product's test bench test.
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Description

TECHNICAL FIELD

[0001] The utility model relates to test frock fixture technical field, especially in two radial one swing angle durability test frock of rubber bushing. BACKGROUND

[0002] With the bench test of test from foundation to complexity derivation unceasingly, the test of single degree of freedom loading of foundation single, even the test of two degrees of freedom loading, cannot satisfy the demand of rubber bushing durability test.

[0003] Therefore, the technical field urgently needs a kind of rubber bushing two radial one swing angle durability test frock to carry out multi-degree-of-freedom test, including swing angle, the frock structure of two radial synchronous test. UTILITY MODEL CONTENT

[0004] In view of the problems that the loading test of single degree of freedom or two degrees of freedom of prior art cannot satisfy the demand of rubber bushing durability test, a kind of rubber bushing two radial one swing angle durability test frock is proposed.

[0005] The technical scheme of the utility model is: a kind of rubber bushing two radial one swing angle durability test frock, including base, bushing product inner tube fixed frock, first linear actuator limiting auxiliary frock, second linear actuator limiting auxiliary frock, simulate bushing sleeve assembly;Bushing product inner tube fixed frock is located on base, second linear actuator limiting auxiliary frock is equipped in the lower of bushing product inner tube fixed frock, second linear actuator limiting auxiliary frock top connects first linear actuator limiting auxiliary frock, first linear actuator limiting auxiliary frock top connects simulate bushing sleeve assembly.

[0006] Preferably, the base includes first fixed seat, second fixed seat;First fixed seat is connected with bushing product inner tube fixed frock between second fixed seat and top position close.

[0007] Preferably, the second fixed seat is equipped with the auxiliary base of connecting and fixed test product on the side away from first fixed seat.

[0008] Preferably, the second linear actuator limiting auxiliary frock includes fixed crosspiece, second slide rail, second sliding block, connecting base;The top of connecting base is connected with second slide rail, second sliding block is slidably connected with second slide rail, and the top of second sliding block is connected with fixed crosspiece.

[0009] Preferably, the second sliding block is equipped with keyway matched with second slide rail, and the second sliding block is slidably connected with the second slide rail by the keyway.

[0010] Preferably, the first linear actuator limiting auxiliary tool comprises a U-shaped connector, a fixed connecting seat, a first sliding rail, a first sliding block and a fixed vertical plate; two arms of the U-shaped connector are respectively connected to one end of two fixed connecting seats, the fixed connecting seat is connected to the first sliding rail, the first sliding block is slidably connected to the first sliding rail, and the fixed vertical plate is connected to the side of the first sliding block away from the first sliding rail.

[0011] Preferably, the first sliding block is provided with a key groove matched with the first sliding rail, and the first sliding block is slidably connected to the first sliding rail through the key groove.

[0012] Preferably, the fixed vertical plate is connected to the fixed horizontal plate perpendicularly.

[0013] Preferably, the simulated bushing sleeve assembly comprises a simulated bushing sleeve press-fitting tool and an L-shaped connecting plate, the center of the simulated bushing sleeve press-fitting tool is provided with a through hole for sleeving the mounting part of the bushing, and the opposite sides of the simulated bushing sleeve press-fitting tool are connected to the L-shaped connecting plate.

[0014] Preferably, one end of the L-shaped connecting plate away from the simulated bushing sleeve press-fitting tool is connected to the fixed connecting seat.

[0015] The bushing product inner tube fixing tool uses bolts to connect the two sides of the rotating load bearing assembly, so that the bushing is fixed in the axial horizontal direction, the test tool is used for the test of two linear radial directions and one swing angle of the rubber bushing product, the test tool realizes the multi-freedom linkage loading condition of the automobile damping product test bench under the simulation of actual road conditions, and greatly improves the accuracy of the test bench test of the rubber bushing product. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic view of the rubber bushing two-radial-angle durability test tool of the utility model;

[0017] Figure 2 It is an exploded view of the rubber bushing two-radial-angle durability test tool of the utility model;

[0018] Figure 3 It is a three-dimensional schematic view of the bushing product inner tube fixing tool of the utility model;

[0019] Figure 4 It is a schematic view of the first linear actuator limiting auxiliary tool of the utility model;

[0020] Figure 5 It is a schematic view of the second linear actuator limiting auxiliary tool of the utility model;

[0021] Figure 6 It is a schematic view of the simulated bushing sleeve press-fitting tool of the utility model;

[0022] Figure 7 The utility model slide and slide rail schematic view.

[0023] In the drawings, the corresponding component name of each reference sign is as follows:

[0024] 1, base; 11, first fixed seat; 12, second fixed seat; 13, auxiliary base; 2, bushing product inner tube fixing tool; 3, first linear actuator limiting auxiliary tool; 31, U-shaped connecting piece; 32, fixed connecting seat; 33, first slide rail; 34, first slide block; 35, fixed vertical plate; 4, second linear actuator limiting auxiliary tool; 41, fixed cross plate; 42, second slide rail; 43, second slide block; 44, connecting base; 5, simulated bushing sleeve assembly; 51, press-fitting tool of simulated bushing sleeve; 511, through hole; 52, L-shaped connecting plate. DETAILED DESCRIPTION

[0025] The utility model will be described in detail below in combination with the drawings and specific embodiments. The embodiment is implemented on the premise of the technical scheme of the utility model, and gives detailed implementation mode and specific operation process, but the protection scope of the utility model is not limited to the following examples.

[0026] Reference Figure 1 、 2 As shown in the figure, the application embodiment discloses a kind of rubber bushing two radial one swing angle endurance test tool, including base 1, bushing product inner tube fixing tool 2, first linear actuator limiting auxiliary tool 3, second linear actuator limiting auxiliary tool 4, simulated bushing sleeve assembly 5;Bushing product inner tube fixing tool 2 is arranged on base 1, second linear actuator limiting auxiliary tool 4 is equipped in the lower of bushing product inner tube fixing tool 2, second linear actuator limiting auxiliary tool 4 top connects first linear actuator limiting auxiliary tool 3, first linear actuator limiting auxiliary tool 3 top connects simulated bushing sleeve assembly 5;

[0027] Reference Figure 2 、 3 As shown in the figure, the base 1 includes first fixed seat 11, second fixed seat 12, auxiliary base 13;First fixed seat 11 is connected with bushing product inner tube fixing tool 2 between second fixed seat 12, second fixed seat 12 is equipped with auxiliary base 13 on the side away from first fixed seat 11, and auxiliary base 13 acts as connecting and fixing test product;First fixed seat 11 and second fixed seat 12 are connected with bushing product inner tube fixing tool 2 by bolt;First fixed seat 11 and second fixed seat 12 are fixedly installed on experimental platform by bolt;

[0028] Reference Figure 2 、 5As shown, the second linear actuator limiting auxiliary tool 4 includes a fixed cross plate 41, a second sliding rail 42, a second sliding block 43, and a connecting base 44. The connecting base 44 is connected to the top of the second sliding rail 42. The second sliding block 43 is provided with a key groove matched with the second sliding rail 42. The second sliding block 43 is slidably connected to the second sliding rail 42 through the key groove. The top of the second sliding block 43 is connected to the fixed cross plate 41. In this embodiment, the second sliding block 43 is connected to the fixed cross plate 41 through bolts. The connecting base 44 is fixedly installed on the experimental platform through bolts;

[0029] Referring to Figure 2 、 4 , as shown in FIG. 7, the first linear actuator limiting auxiliary tool 3 includes a U-shaped connecting piece 31, a fixed connecting seat 32, a first sliding rail 33, a first sliding block 34, and a fixed vertical plate 35. The two arm ends of the U-shaped connecting piece 31 are respectively connected to one end of the two fixed connecting seats 32. The side surface of the fixed connecting seat 32 is connected to the first sliding rail 33. The first sliding block 34 is provided with a key groove matched with the first sliding rail 33. The first sliding block 34 is slidably connected to the first sliding rail 33 through the key groove. The side of the first sliding block 34 away from the first sliding rail 33 is connected to the fixed vertical plate 35;

[0030] In this embodiment, the two arm ends of the U-shaped connecting piece 31 are threadedly connected to one end of the fixed connecting seat 32. The side surface of the fixed connecting seat 32 is connected to the first sliding rail 33 through bolts. The side of the first sliding block 34 away from the first sliding rail 33 is connected to the fixed vertical plate 35 through bolts.

[0031] The fixed vertical plate 35 is connected to the fixed cross plate 41 perpendicularly. In this embodiment, the fixed vertical plate 35 is connected to the fixed cross plate 41 through bolts.

[0032] Referring to Figure 2 、 6 , as shown in FIG. 8, the simulated bushing sleeve assembly 5 includes a simulated bushing sleeve press-fitting tool 51 and an L-shaped connecting plate 52. The center of the simulated bushing sleeve press-fitting tool 51 is provided with a through hole 511. An installation portion for sleeving a bushing is arranged inside the through hole 511. The opposite sides of the simulated bushing sleeve press-fitting tool 51 are connected to the L-shaped connecting plate 52. The simulated bushing sleeve press-fitting tool 51 is connected to the L-shaped connecting plate 52 through bolts.

[0033] One end of the L-shaped connecting plate 52 away from the simulated bushing sleeve press-fitting tool 51 is connected to the fixed connecting seat 32. In this embodiment, the L-shaped connecting plate 52 is connected to the fixed connecting seat 32 through bolts.

[0034] The simulated bushing sleeve press-fitting tool 51 is fixed on the bushing product inner tube fixing tool 2 through the bushing inner tube.

[0035] The beneficial effect is that the bushing product inner tube fixing tool 2 uses bolts to connect the two sides of the rotating load bearing assembly, so that the bushing is fixed in the axial horizontal direction, the test tool is used for the test of rubber bushing product two linear radial, one swing angle synchronous three degree of freedom loading, realizes the multi-degree of freedom linkage loading of the automobile damping product bench test simulation actual road condition, greatly improves the accuracy of the bench test of the rubber bushing product.

[0036] It should be noted that the above terms "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The meaning of "a plurality of" is two or more. "Mounting", "connection" and "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected.

[0037] The above is only a preferred embodiment of the present application, and is not any form and substantial limitation on the present application. It should be noted that for ordinary skilled persons in the art, without departing from the present application, some improvements and supplements can be made, which should be regarded as the protection range of the present application. For those skilled in the art, without departing from the spirit and scope of the present application, some changes, modifications and equivalent changes can be made by using the above disclosed technical content, which are equivalent embodiments of the present application; at the same time, any equivalent change, modification and evolution of the above-mentioned embodiments according to the essential technology of the present application are still within the scope of the technical scheme of the present application.

Claims

1. A rubber bushing two-diameter one-pivoting durability test tooling, characterized by, The application relates to a test device for testing a bushing product inner tube, which comprises a base (1), a bushing product inner tube fixing tool (2), a first linear actuator limiting auxiliary tool (3), a second linear actuator limiting auxiliary tool (4) and a simulated bushing sleeve assembly (5).

2. The durability test tool for rubber bushing according to claim 1, wherein The base (1) comprises a first fixing seat (11) and a second fixing seat (12), and the bushing product inner tube fixing tool (2) is connected to the top of the first fixing seat (11) and the second fixing seat (12).

3. The durability test tool for rubber bushing according to claim 2, wherein The second fixing seat (12) is provided with an auxiliary base (13) for connecting and fixing a test product on the side away from the first fixing seat (11).

4. The durability test fixture for rubber bushing according to claim 1, wherein The second linear actuator limiting auxiliary tool (4) comprises a fixed cross plate (41), a second sliding rail (42), a second sliding block (43) and a connecting base (44).

5. The durability test fixture for rubber bushing of claim 4, wherein, The second sliding block (43) is provided with a key groove matched with the second sliding rail (42), and the second sliding block (43) is slidably connected with the second sliding rail (42) through the key groove.

6. The durability test fixture for rubber bushing of two diameters and one angular according to claim 4, characterized in that, The first linear actuator limiting auxiliary tool (3) comprises a U-shaped connecting piece (31), a fixed connecting seat (32), a first sliding rail (33), a first sliding block (34) and a fixed vertical plate (35).

7. The durability test fixture of claim 6, wherein, The first sliding block (34) is provided with a key groove matched with the first sliding rail (33), and the first sliding block (34) is slidably connected with the first sliding rail (33) through the key groove.

8. The durability test fixture of claim 6, wherein, The fixed vertical plate (35) is vertically connected with the fixed cross plate (41).

9. The durability test fixture of claim 6, wherein, The simulated bushing sleeve assembly (5) comprises a simulated bushing sleeve pressing tool (51) and an L-shaped connecting plate (52), the simulated bushing sleeve pressing tool (51) is provided with a through hole (511) for sleeving an installation part of a bushing in the center, and the opposite sides of the simulated bushing sleeve pressing tool (51) are connected with the L-shaped connecting plate (52).

10. The durability test fixture of claim 9, wherein, The L-shaped connecting plate (52) is connected with the fixed connecting seat (32) on the end away from the simulated bushing sleeve pressing tool (51).