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Standard torque wrench

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

Active Publication Date: 2021-02-05
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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  • Standard torque wrench
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Examples

Experimental program
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Embodiment Construction

[0016] An example of a standard torque wrench is Figure 1~2 As shown: it includes a wrench 14 arranged horizontally and a standard torque sensor 4 arranged vertically. The lower end of the standard torque sensor is an instrument connection end used to connect with the instrument under test. The instrument connection end in this 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 coaxial line of the bellows 3 is arranged outside the standard torque sensor 4. The upper end of the bellows 3 is welded and fixed with a top connecting plate 2, and the top connecting plate 2. The key block 1 is connected to the upper end of the standard torque sensor, and the lower end of the bellows 3 is fixed on the wrench 14 by welding. Xin TX-005 stainless steel bellows.

[0017] One end of the wrench adjacent to the standard torque sensor is provided with a connection hole 19 coaxial with ...

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PUM

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Abstract

The invention relates to a standard torque wrench, which comprises a wrench body and a standard torque sensor, one end of the standard torque sensor is an instrument connecting end used for being connected with a detected instrument, the other end of the standard torque sensor is in transmission connection with the wrench body, and a connecting hole coaxial with the standard torque sensor is formed in the wrench body. The hole wall of the connecting hole is connected with a supporting sleeve through a first bearing, and the bottom of the supporting sleeve is supported on a supporting face. Theinvention solves the technical problem that in the prior art, when a standard torque wrench is used for calibrating a detected instrument, a torque sensor of the detected instrument is prone to beingsubjected to vertical deflection acting force given by the wrench, and consequently the indicating value is inaccurate.

Description

technical field [0001] The invention relates to standard torque wrenches in the field of calibration verification. Background technique [0002] The standard torque wrench is a device used to directly calibrate the torque sensor or the torque sensor in some tools. The existing standard torque wrench is "a standard torque wrench" disclosed in Chinese patent CN202582833U. The standard torque wrench It includes a torsion arm, a sensor that is a standard sensor and a connection head of the tested instrument, and the sensor includes an upper joint connected to the torsion arm, a strain sensing area and a lower joint used to connect with the connected head of the tested instrument. The standard sensor refers to the torque sensor whose accuracy is higher than that of the torque sensor in the tested instrument. The upper joint and the lower joint are used to transmit torque, and the torque difference between the upper joint and the lower joint acts on the strain sensing area to gene...

Claims

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Application Information

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