High and low temperature transverse vibration tester for fastener

A technology of lateral vibration and fasteners, which is applied in vibration testing, testing of machine/structural components, temperature control using electric methods, etc., can solve problems such as unsatisfactory performance testing, achieve good practical performance, improve diversification, Guaranteed temperature effect

Pending Publication Date: 2017-08-11
ZHEJIANG HUADIAN EQUIP TESTING INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a high and low temperature lateral vibration testing machine for fasteners, which solves the technical problem that the existing fastener vibration testing machine cannot meet the performance tests in high temperature and low temperature environments

Method used

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  • High and low temperature transverse vibration tester for fastener
  • High and low temperature transverse vibration tester for fastener
  • High and low temperature transverse vibration tester for fastener

Examples

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Embodiment Construction

[0027] Such as figure 1 , figure 2 , image 3 , Figure 4 As shown, the high and low temperature lateral vibration testing machine for fasteners includes a frame 1 and a bracket 2 arranged on the frame 1. The bracket 2 is provided with a fixture 3 for fixing the fastener to be tested. The first load cell 4 for the axial pretightening force of the fastener to be measured also includes a base 5 and a control box 6 with controllable internal temperature. The control box 6 is slidably connected to the base 5, and a drive The clamp 3 moves up and down on the support 2 with a drive assembly 7, the drive assembly 7 is provided with a second load cell 70 for detecting the lateral force of the fastener under test, and the support 2 is provided with a displacement sensor for detecting the lateral displacement of the fastener under test. Sensor 21; Control box 6 comprises working room 8 and equipment room 9, and working room 8 is arranged on the equipment room 9, and one side of work...

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Abstract

The invention relates to a high and low temperature transverse vibration tester for a fastener. The tester comprises a frame and a support, a clamp is arranged on the support, a first force measuring sensor is arranged on the clamp, the tester further comprises a base and a control box having the internal temperature controllable, a drive assembly is arranged in the frame, a second force measuring sensor is arranged on the drive assembly, and a displacement sensor is arranged on the support. The tester has the advantages that the clamp is sealed in a workroom of the control box, and the temperature of the workroom is controlled and adjusted according to the demand of test, so that the workroom can realize a low temperature environment or a high temperature environment; then the drive assembly drives the clamp to move up and down on the support, the second force measuring sensor detects the change of axial pre-tightening force, the first force measuring sensor detects the change of transverse pre-tightening force, the displacement sensor detects the change of transverse displacement, and the anti-loosening characteristic of the fastener is judged, so that the tester can meet self-locking performance test of the fastener in the low temperature or high temperature environment and simultaneously meet the test requirements of various different standards.

Description

technical field [0001] The invention relates to a high and low temperature lateral vibration testing machine for fasteners. Background technique [0002] Fasteners are a type of mechanical parts that are used for fastening connections and are widely used. They are used to fasten two or more parts (or components) and fasten them into a whole. Generally speaking, while the fasteners are connected by threads, the performance of most threaded connections depends on the size and stability of their axial preload. However, when the threaded connections are disturbed by external loads, especially lateral vibration loads At this time, the threaded connection is prone to loosening and failure, and the threaded connection force is gradually reduced or even completely lost, which often leads to very serious personal safety and property loss problems. [0003] At present, there are three main test methods used to evaluate the anti-loosening performance of threaded fasteners: anchor bolt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M7/04G05D23/30G05D23/19G01D21/02
CPCG05D23/19G05D23/30G01D21/02G01M7/00
Inventor 李瑞钱苗马恒陈玲钱科高义波李周选朱志华金燮飞韦一力杨丽莉
Owner ZHEJIANG HUADIAN EQUIP TESTING INST
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