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A standard torque wrench

A standard and wrench technology, applied in force/torque/power measuring instrument calibration/testing, instruments, measuring devices, etc., can solve problems such as inaccurate indications due to biased forces in the up and down directions

Active Publication Date: 2022-05-20
河南牛帕力学工程研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a standard torque wrench to solve the problem that when the standard torque wrench in the prior art calibrates the tested instrument, the torque sensor of the tested instrument is easily subjected to the vertical deflection force given by the wrench and the displayed value is not correct. accurate technical questions

Method used

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  • A standard torque wrench
  • A standard torque wrench

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Experimental program
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Embodiment Construction

[0016] An embodiment of a standard torque wrench is for example Figures 1 to 2Shown: comprising a horizontal setting of the wrench 14 and a vertical setting of the standard torque transducer 4, the lower end of the standard torque sensor is for connecting with the instrument being inspected instrument connection end, the instrument connection end of the present embodiment is a square tenon structure 6, the upper end of the standard torque sensor is connected to the wrench 14 through the bellows 3, specifically, the bellows 3 coaxial line is provided on the outside of the standard torque sensor 4, the upper end of the bellows 3 is welded with a top connection plate 2, The top connection plate 2 is connected to the upper end of the standard torque transducer by key block 1, the lower end of the bellows 3 is welded to the wrench 14, the bellows in the present embodiment is a stainless steel metal bellows, such as the Taixin TX-005 stainless steel bellows produced by Renqiu Taixin Bel...

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PUM

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Abstract

The invention relates to a standard torque wrench, which includes a wrench and a standard torque sensor. One end of the standard torque sensor is an instrument connection end used to connect with the instrument to be tested, and the other end of the standard torque sensor is connected to the wrench. There is a connection hole coaxially arranged with the standard torque sensor, and the wall of the connection hole is connected with a support sleeve with a bottom for supporting on the support surface through a first bearing. The invention solves the technical problem in the prior art that when the standard torque wrench calibrates the tested instrument, the torque sensor of the tested instrument is easily subjected to the vertical deflection force given by the wrench and the displayed value is inaccurate.

Description

Technical field [0001] The present invention relates to a standard torque wrench in the field of calibration verification. Background [0002] Standard torque wrench is a kind of instrument for directly calibrating the torque sensor, or the torque sensor in some tools, the existing standard torque wrench such as the Chinese patent CN202582833U disclosed "a standard torque wrench", the standard torque wrench includes a torque arm, the sensor is the standard sensor and the instrument to be tested connector, the sensor includes the upper joint connected to the torque arm, the strain sensing area and the lower joint for connecting with the instrument to be tested. Standard sensor refers to a torque sensor with an accuracy higher than the torque sensor in the instrument to be tested, the upper joint and the lower joint are used to transmit torque, and the torque difference between the upper and lower joints acts on the strain sensing area and generates strain, so as to measure the tor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L25/00
CPCG01L25/003
Inventor 尚廷东
Owner 河南牛帕力学工程研究院