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Multifunctional Reference Torque Standard Machine

A standard machine and multi-functional technology, applied in the direction of force/torque/power measuring instrument calibration/testing, instruments, measuring devices, etc., it can solve the problem that the standard torque wrench cannot be detected, the influence of lateral force cannot be offset, and the use status does not match, etc. problem, to achieve the effect of perfect function, reduce error and eliminate uncertainty

Active Publication Date: 2020-02-04
NAT INST OF METROLOGY CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the field of torque measurement, most of the currently used torque standard machines are static weight torque standard machines, that is, torque measurement standards composed of force arms and weights. With the advancement of technology, reference torque standard machines have also begun to appear in China, but now Some reference torque standard machines are designed purely for testing torque sensors. The vertical reference torque standard device (that is, the vertical arrangement of the measuring shaft) does not have air bearings for support. There is no problem when testing torque sensors. When testing standard torque The impact of lateral force cannot be counteracted when wrench, and the standard torque wrench cannot be strictly tested
The horizontal reference torque standard device (the measuring shaft is arranged horizontally) has just been developed. This type of reference torque standard device has an air bearing support, but its detection state when testing the standard torque wrench is seriously different from the use state of the standard torque wrench. does not match

Method used

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  • Multifunctional Reference Torque Standard Machine
  • Multifunctional Reference Torque Standard Machine
  • Multifunctional Reference Torque Standard Machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] figure 1 A schematic structural view of a multifunctional reference torque standard machine according to the present invention is shown.

[0054] The multifunctional reference torque standard machine according to the exemplary embodiment includes a left support 1 , a right support 16 and a force platform 15 disposed between the left support 1 and the right support 16 , and the housing 14 is disposed below the force platform 15 . The functions of the left support 1, the stressed platform 15, the housing 14 and the right support 16 are to support the overall structure.

[0055] On the force platform 15, a working platform 6 is arranged near the left bracket 1, and the top mounting plate 2 which is opposite to the working platform 6 and can move up and down along the left bracket 1 is arranged on the left bracket 1 top, and the up and down movement of the top mounting plate 2 can drive the upper The shaft coupling 3 moves up and down so as to adapt to devices under test o...

Embodiment 2

[0067] image 3 A state diagram of a standard torque wrench detected by a multifunctional reference torque standard machine according to an exemplary embodiment of the present invention is shown.

[0068] According to another aspect of the present invention, such as image 3 As shown, the multifunctional reference torque standard machine can also be applied to standard torque wrench detection.

[0069] During detection, the standard torque wrench 18 to be tested is connected to the shaft coupling 3 through the output square falcon, and the movable baffle 12 is adjusted according to the length of the force arm of the standard torque wrench 18 to be measured, so that the movable baffle 12 is used as the stress point of the force arm, Then load, after loading, the moment arm of the standard torque wrench 18 to be tested contacts the moving baffle 12, and when loading continues, the moment arm is blocked by the moving baffle 12. Carry out step-by-step loading at the positions of...

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Abstract

The invention discloses a multifunctional reference-type torque standard machine, and the standard machine comprises a support which comprises a left support, a right support, and a stress platform which is disposed between the left and right supports. A part, close to the left support, of the stress platform is provided with a working platform, and the upper part of the left support is provided with a top installation plate which is opposite to the working platform and can move up and down along the left support. The standard machine also comprises an air bearing which is disposed on the working platform; a pair of shaft couplers which are respectively disposed on the top installation plate and a rotor shaft output end of the air bearing; a standard torque sensor which is disposed on a rotor shaft input end of the air bearing; a worm and gear assembly which comprises a worm wheel in coaxial connection with the rotor shaft input end of the air bearing and a worm connected to the worm wheel; a gear deceleration group which is in transmission connection with the worm; and a power input part which is connected to the input end of the gear deceleration group. The standard machine is characterized in that the standard machine is high in precision level, can meet the metering and calibration demands of different types of torque sensors and standard torque wrenches in different sizes, can achieve the whole-machine calibration, is flexible and convenient, and is high in adaptability.

Description

technical field [0001] The invention relates to the field of torque measurement, in particular to a multifunctional reference torque standard machine. Background technique [0002] In the field of torque measurement, most of the currently used torque standard machines are static weight torque standard machines, that is, torque measurement standards composed of force arms and weights. With the advancement of technology, reference torque standard machines have also begun to appear in China, but now Some reference torque standard machines are designed purely for testing torque sensors. The vertical reference torque standard device (that is, the vertical arrangement of the measuring shaft) does not have air bearings for support. There is no problem when testing torque sensors. When testing standard torque The impact of lateral force cannot be counteracted when the wrench is used, and the standard torque wrench cannot be strictly tested. The horizontal reference torque standard ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/08G01L25/00
CPCG01L25/003
Inventor 孟峰张智敏张跃蔡常青张殿龙胡刚
Owner NAT INST OF METROLOGY CHINA