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A multifunctional fastener testing machine

A technology for fasteners and testing machines, applied in the field of multifunctional fastener testing and testing machines, which can solve problems such as large test uncertainty and inability to guarantee, and achieve the effects of saving space, improving accuracy, and simplifying the driving structure

Active Publication Date: 2018-04-10
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it cannot be guaranteed that the test of force, displacement and torque in each direction is in the same state during the fastener test, resulting in a large test uncertainty

Method used

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  • A multifunctional fastener testing machine
  • A multifunctional fastener testing machine

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Embodiment Construction

[0009] The specific embodiments of the present invention will be described in detail with reference to the drawings and technical solutions.

[0010] Attached figure 1 Among them, the multifunctional fastener testing machine has a base 14 and a guide rail 20 is fixedly installed on the base 14. The speed control motor 1 is installed on the guide rail 20, and the position of the speed control motor 1 on the base 14 can be adjusted to facilitate installation and tighten the fastener 5 to be tested, such as figure 2 Shown.

[0011] The speed control motor 1 installed on the guide rail 20 is used to provide real-time speed and torque required for the test; the other end of the coupling 2 connected to the speed control motor 1 is installed with a torque speed sensor 3, which is used for measurement Adjust the output speed and real-time torque of the speed motor 1. The transverse vibration exciter 12 and the connected transverse force sensor 11 are connected to the intermediate connec...

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Abstract

The invention provides a multifunctional fastener testing machine, belongs to the field of mechanical testing equipment, and relates to the multifunctional fastener testing machine. According to the testing machine, multiple sensors and vibration exciters are cooperatively adopted to test torque, force and displacement of a tested piece. A guide rail is installed on a base. The output shaft of a speed regulating motor installed on the guide rail is connected with a coupler. One end of a toque rotating speed sensor is connected with the coupler, and the other end is fixedly connected with a sleeve. The sleeve clamps the tested fastener. An intermediate connecting clamp plate is fixedly installed on the base. A transverse vibration exciter installed at the left part of the base is connected with an axial force sensor through threads. The other end of the axial force sensor is installed at the left end of the intermediate connecting clamp plate. The testing machine can perform pre-tightening loading and loading of vibration load on the same tested fastener without changing the state so that the measured data are enabled to be more accurate. The vibration exciters are adopted so that the structure is simplified, space is saved and test accuracy is enhanced.

Description

Technical field [0001] The invention belongs to the field of mechanical testing equipment and relates to a multifunctional fastener testing machine. Background technique [0002] The traditional fastener testing machine only measures the relationship between fastener torque, rotation, axial force and other parameters alone, or only tests related dynamic parameters under lateral load, such as the national standard GB / T10431—2008 fastening The transverse vibration test method of the parts, which adopts the motor and the eccentric wheel structure to give the transverse dynamic load, only the amplitude, frequency, and clamping force of the test part are clearly specified for the testing machine. Wuhan University of Technology, Shanghai Zhengao Nut Co., Ltd., Ye Tao, Chen Xiaodong, etc. "A device for testing the anti-loosening performance of threaded fasteners", the patent application number 201510111450.2, invented a method for testing threaded fasteners The test device for the anti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M7/02
CPCG01M7/027
Inventor 马跃孙新孙清超孙志勇
Owner DALIAN UNIV OF TECH
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