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Snap spring locking capability test platform and test method

A capability test, circlip technology, applied in the application of stable torsion to test material strength, mechanical component testing, machine/structural component testing, etc. It can solve problems such as failure, impact of circlip locking ability

Active Publication Date: 2022-03-25
CHANGZHOU DAOCHENG TRANSMISSION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the circlip needs to be continuously deformed to generate resistance during use, long-term reciprocating motion or different torques will also affect the locking ability of the circlip, resulting in final failure

Method used

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  • Snap spring locking capability test platform and test method
  • Snap spring locking capability test platform and test method
  • Snap spring locking capability test platform and test method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] See Figure 1 to Figure 3 , the present invention has installation test bench 1, torque input shaft 2, double fork 3, torque output shaft 4, cross universal joint assembly 5, shaft mounting frame 6 and test circlip 7, torque input shaft 2 and torque output shaft 4 The cross universal joint assembly 5 is connected with the double fork 3, and the outer end of the cross universal joint assembly 5 is provided with a test circlip 7, and the torque input shaft 2 and the torque output shaft 4 are rotatably installed on the shaft mounting frame 6 Above, the shaft mounting bracket 6 is fixed on the installation test bench 1.

[0022] Shaft mounting frame 6 comprises input shaft end mounting plate 61, input shaft connection end mounting plate 62, output shaft mounting frame 63, torque input shaft 2 ends are rotatably installed on input shaft end mounting plate 61, and the other end is rotatably installed on The connection end of the input shaft is mounted on the plate 62 and is ...

Embodiment 2

[0026] A test method using the above-mentioned circlip locking ability test platform, comprising the following steps:

[0027] S1. Adjust the included angle α: adjust the relative position of the shaft mounting frame 6, and adjust the installation angle α between the torque input shaft 2 and the torque output shaft 4;

[0028] S2. Input torque: According to the angle α and the input torque curve corresponding to the angle α, an input torque is loaded on the torque input shaft 2, and positive and negative torques are loaded;

[0029] S3. Loading frequency: load a swing frequency on the torque input shaft 2, so that the torque input shaft 2 swings back and forth, thereby testing the locking strength of the circlip 7;

[0030] S4. Cyclic test: Continuous input torque and loading frequency test until the circlip is damaged and fails or the circlip shifts and falls off, record the cycle life, and test at least 3 pieces of the same required test pieces. That is, at least three test...

Embodiment 3

[0032] S1. Adjust the angle α: adjust the relative position of the shaft mounting bracket 6, and adjust the installation angle α between the torque input shaft 2 and the torque output shaft 4 to be 40°;

[0033] S2. Input torque: according to the angle α and the input torque curve corresponding to the angle α, load an input torque on the torque input shaft 2, load positive and negative torques, +1088 Nm and -544 Nm; into B310 series applications)

[0034] S3. Loading frequency: load a swing frequency of 0.5 Hz on the torque input shaft 2, so that the torque input shaft 2 swings back and forth, so as to test the locking strength of the circlip 7;

[0035] S4. Cycle test: Continuously test the input torque and loading frequency until the circlip is damaged and fails or the circlip shifts and falls off, record the cycle life, and test at least 3 circlips 7 under the same test conditions.

[0036] Test Specifications:

[0037]

[0038] Test Results:

[0039]

[0040] Test...

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Abstract

The invention relates to the field of snap spring testing, in particular to a snap spring locking capacity testing platform and a testing method. The test device is provided with an installation test bench, a torque input shaft, double forks, a torque output shaft, a cross universal joint assembly, a shaft installation frame and a test clamp spring, the torque input shaft and the torque output shaft are connected through the cross universal joint assembly and the double forks, and the test clamp spring is arranged at the outer end of the cross universal joint assembly. The torque input shaft and the torque output shaft are rotatably mounted on a shaft mounting rack, and the shaft mounting rack is fixed on the mounting test bench.

Description

technical field [0001] The invention relates to the field of circlip testing, in particular to a circlip locking ability testing platform and testing method. Background technique [0002] The circlip is also called a retaining ring or a buckle, which is a kind of fastener. It is installed in the shaft groove or hole groove of the machine equipment, and plays a role in preventing the axial movement of the parts on the shaft or the hole. Since the circlip needs to be continuously deformed to generate resistance during use, long-term reciprocating motion or different torques will also affect the locking ability of the circlip and lead to final failure. The circlip used on the half-shaft assembly of the steering drive axle is especially used in the application of heavy-duty vehicles or vehicles with heavy weight (such as self-propelled aerial work platforms). Coupled with factors such as the vehicle's own weight and harsh motion conditions, it will easily form a non-stop impact...

Claims

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Application Information

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IPC IPC(8): G01M13/00G01N3/22
CPCG01M13/00G01N3/22
Inventor 沈辉雷德浪
Owner CHANGZHOU DAOCHENG TRANSMISSION TECH
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