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CN-224209777-U - Multi-shaft vibration test fixture tool for rail transit vehicle

CN224209777UCN 224209777 UCN224209777 UCN 224209777UCN-224209777-U

Abstract

The utility model discloses a fixture tool for a multi-axis vibration test of a rail transit vehicle, and relates to the technical field of multi-axis vibration tests of vehicles. The utility model includes a vibrating table. According to the utility model, the driving assembly is pulled to compress the clamping assembly, so that the clamping arrangement of the driving assembly is relieved, the driving assembly is rotated to drive the clamping assembly with one fixed end to move, when the clamping assembly moves, the clamping assembly can be attached to the inner side of the hub, and the hub is firmly fixed at the top end of the supporting assembly along with the continuous movement of the clamping assembly, and then the driving assembly is loosened, so that the clamping assembly pushes the driving assembly to reset, the driving assembly is clamped and fixed again, thus loosening of the vibrating table in the working process is avoided, the vehicle is prevented from being separated from the vibrating table in the vibration process, and the stability of the vehicle in the vibration experiment process is ensured.

Inventors

  • PU LONGFENG
  • MA YUJUAN

Assignees

  • 苏州旭博检测服务有限公司

Dates

Publication Date
20260508
Application Date
20250512

Claims (7)

  1. 1. The utility model provides a rail transit vehicle multiaxis vibrations test fixture, includes shaking table (1), its characterized in that: The vibrating table (1) is respectively provided with a supporting component (2), a driving component (3), a clamping component (4) and a clamping component (5); The bottom end of the supporting component (2) is fixedly arranged with the top end of the vibrating table (1), so that the supporting component (2) supports and limits the vehicle; One end of the driving component (3) is fixedly connected with one end of the clamping component (5), so that the driving component (3) drives the clamping component (5) to clamp and limit the vehicle hub; And one end of the clamping assembly (4) is fixedly connected with one side of the driving assembly (3), so that the clamping assembly (4) is used for limiting the driving assembly (3) in a clamping manner.
  2. 2. The multi-axis vibration test fixture tool for the rail transit vehicle according to claim 1, wherein the supporting assembly (2) comprises a supporting table (201), the bottom end of the supporting table (201) is fixedly installed on the top end of the vibrating table (1), one side of the supporting table (201) is fixedly connected with a positioning plate (202), and the top end of the supporting table (201) is fixedly connected with a limiting plate (203).
  3. 3. The multi-axis vibration test fixture tool for the rail transit vehicle according to claim 2, wherein the driving assembly (3) comprises a mounting shaft (301), the outer surface of the mounting shaft (301) and the inside of the supporting table (201) are rotatably arranged, a sliding groove (302) is formed in the outer surface of the mounting shaft (301), a sliding block (303) is slidably arranged in the sliding groove (302), and a crank (304) is fixedly connected to one side of the sliding block (303).
  4. 4. The rail transit vehicle multiaxial shock test fixture tool according to claim 3, wherein the clamping assembly (4) comprises a spline cylinder (401), one side of the spline cylinder (401) is fixedly connected with one side of the supporting table (201), a spline sleeve (402) is in spline connection with the outer surface of the spline cylinder (401), and one end of the spline sleeve (402) is fixedly connected with one side of the crank (304).
  5. 5. The fixture for the multi-axis vibration test of the rail transit vehicle according to claim 4, wherein the clamping assembly (4) further comprises a fixing sleeve (403), the inside of the fixing sleeve (403) is fixedly installed on the outer surface of the installation shaft (301), a spring (404) is fixedly connected to one side of the fixing sleeve (403), and one end of the spring (404) is fixedly connected to one side of the crank (304).
  6. 6. The fixture for the multi-axis vibration test of the rail transit vehicle according to claim 3, wherein the clamping assembly (5) comprises a positioning groove (501), the positioning groove (501) is formed in the supporting table (201), a bidirectional screw (502) is rotatably arranged in the positioning groove (501), one end of the bidirectional screw (502) is fixedly connected with one end of the mounting shaft (301), and two groups of clamping blocks (503) are connected with a threaded surface of the bidirectional screw (502) in a threaded mode.
  7. 7. The multi-axis vibration test fixture tool for the rail transit vehicle according to claim 6, wherein a T-shaped groove (6) is formed in the top end of the supporting table (201), a T-shaped block (7) is slidably arranged in the T-shaped groove (6), and the top end of the T-shaped block (7) is fixedly connected with the bottom end of the clamping block (503).

Description

Multi-shaft vibration test fixture tool for rail transit vehicle Technical Field The utility model belongs to the technical field of vehicle multi-axis vibration tests, and particularly relates to a fixture tool for a rail transit vehicle multi-axis vibration test. Background The vehicle multi-axis vibration test is a reliability test method for simulating a multi-dimensional vibration environment borne by a vehicle under complex road conditions, and the problems of potential fatigue damage, looseness, resonance and the like are identified by applying X, Y, Z three-axis or six-degree-of-freedom compound vibration excitation to the vehicle to verify the structural strength, connection reliability, component performance and system stability of the vehicle. In the prior art, generally, through carrying out the centre gripping to the front and back both sides of four group wheel hubs of vehicle and fixing, can't carry out the centre gripping to the upper and lower both sides of wheel roller and fix, but when carrying out multiaxis vibration experiment, the vehicle is when receiving the vertical vibrations, makes wheel hub and clamping device break away from easily to influence the vibration experimental data of vehicle. Disclosure of utility model Aiming at the problem that the vibration experimental data of the vehicle is affected by the fact that the hub is easily separated from the clamping device when the vehicle is subjected to up-and-down vibration during multi-axis vibration experiments, the utility model provides a multi-axis vibration experimental fixture for a rail transit vehicle, and aims to solve the technical problems in the prior art. In order to solve the technical problems, the utility model is realized by the following technical scheme: the utility model relates to a fixture tool for a multi-axis vibration test of a rail transit vehicle, which comprises a vibrating table: The vibrating table is respectively provided with a supporting component, a driving component, a clamping component and a clamping component; the bottom end of the supporting component is fixedly arranged with the top end of the vibrating table, so that the supporting component supports and limits the vehicle; One end of the driving component is fixedly connected with one end of the clamping component, so that the driving component drives the clamping component to clamp and limit the vehicle hub; And one end of the clamping assembly is fixedly connected with one side of the driving assembly, so that the clamping assembly is used for limiting the driving assembly in a clamping way. Further, the supporting component comprises a supporting table, the bottom end of the supporting table is fixedly arranged at the top end of the vibrating table, one side of the supporting table is fixedly connected with a positioning plate, and the top end of the supporting table is fixedly connected with a limiting plate. Further, the drive assembly includes the installation axle, the surface of installation axle rotates the setting with the inside of brace table, the sliding tray has been seted up to the surface of installation axle, the inside slip in sliding tray is provided with the sliding block, one side fixedly connected with crank of sliding block. Further, the joint subassembly includes a spline section of thick bamboo, one side of a spline section of thick bamboo and one side fixed connection of supporting bench, the surface spline connection of a spline section of thick bamboo has the spline housing, one end of spline housing and one side fixed connection of crank. Further, the clamping assembly further comprises a fixing sleeve, the inside of the fixing sleeve is fixedly arranged on the outer surface of the mounting shaft, a spring is fixedly connected to one side of the fixing sleeve, and one end of the spring is fixedly connected with one side of the crank. Further, the clamping assembly comprises a positioning groove, the positioning groove is formed in the supporting table, a bidirectional screw rod is rotatably arranged in the positioning groove, one end of the bidirectional screw rod is fixedly connected with one end of the mounting shaft, and two groups of clamping blocks are connected with the threaded surface of the bidirectional screw rod in a threaded mode. Further, a T-shaped groove is formed in the top end of the supporting table, a T-shaped block is slidably arranged in the T-shaped groove, and the top end of the T-shaped block is fixedly connected with the bottom end of the clamping block. The utility model has the following beneficial effects: 1. According to the utility model, the driving assembly is pulled to compress the clamping assembly, so that the clamping arrangement of the driving assembly is relieved, the driving assembly is rotated to drive the clamping assembly with one fixed end to move, when the clamping assembly moves, the clamping assembly can be attached to the inner side of the hub, and the hub is firm