Spring testing machine

A testing machine and technology to be tested, applied in the testing of mechanical components, testing of machine/structural components, measuring devices, etc., can solve the problem of low testing efficiency, and achieve the effect of simplifying the structure and expanding the scope of application

Pending Publication Date: 2017-06-13
NINGBO POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fatigue parameters of the coil spring need to be measured by a professional fatigue testing machine. The fatigue testing machine in the prior art can only test a single spring or multiple springs of the same type, and the test efficiency is not high.

Method used

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Experimental program
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Embodiment 1

[0029] like Figure 1 to Figure 5 Shown, the spring testing machine of the present embodiment comprises:

[0030] Main shaft 1, the main shaft 1 is installed in the main shaft box 2, the main shaft box 2 is placed on the table 3 of the spring testing machine, one end of the main shaft 1 is connected to the first pulley 4 with a flat key; the other end of the main shaft 1 is as Figure 5 As shown, the eccentric wheel 5 is installed on the main shaft 1 by using a flat key, and a stop ring 6 and a cotter pin 7 are installed on the outside of the eccentric wheel 5 to prevent the eccentric wheel 5 from falling off from the main shaft 1; a bearing 8 is installed on the eccentric wheel 5, and a circlip 9 is fixed Bearing 8 prevents it from falling off from eccentric wheel 5;

[0031] Motor 10, motor 10 is installed on the below of spring testing machine table top 3, and the rotating shaft of motor 10 is connected second pulley 11 by flat key, and second pulley 11 is connected with f...

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PUM

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Abstract

The invention discloses a spring testing machine. The spring testing machine mainly comprises a main shaft, a motor, an eccentric wheel, a left shaft for compression, a left limiting stopper, a right shaft for compression, a right limiting stopper and a counter. The motor drives the eccentric wheel to rotate through the main shaft, the left shaft for compression and the right shaft for compression are installed at the two sides of the eccentric wheel respectively, a left testing spring is installed between the left shaft for compression and the left limiting stopper, and a right testing spring is installed between the right shaft for compression and the right limiting stopper; the rotating eccentric wheel drives the left shaft for compression and the right shaft for compression to periodically compresses the left testing spring and the right testing spring, and the left testing spring and the right testing spring are respectively independently installed, and conduct fatigue tests synchronously. In this way, the spring testing machine can not only test two springs simultaneously, but also support tests on springs with different types simultaneously.

Description

technical field [0001] The invention relates to the field of spring detection equipment, in particular to a testing machine for detecting spring fatigue. Background technique [0002] Spring is a mechanical part that uses its own elasticity to work, and is widely used in various fields of national production. The types of springs are complex and diverse. According to the shape, there are mainly coil springs, scroll springs, leaf springs, special-shaped springs, etc., among which coil springs are the most common. The essence of the coil spring is an accumulator, and its main working method is to store energy under the action of external force and release energy after the external force is removed. Therefore, the working process of the coil spring is a repeated compression-recovery (or stretch-recovery) process, which will cause fatigue failure of the spring after long-term use. In order to ensure the product quality and the safety of industrial production, it is necessary t...

Claims

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Application Information

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IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 夏天沈鑫刚吴敏彭力明王劲范进桢华旭
Owner NINGBO POLYTECHNIC
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