Permanent magnetic torsion calibration device

Abstract

The invention discloses a permanent magnetic torsion calibration device which comprises a base, a fixed block, an out-of-magnet fixed block, an in-magnet fixed block, a rotating rod and a turn button. The inner wall of out-of-magnet fixed block is provided with two circles of first magnet mounting holes which are annularly arranged. The outer wall of the out-of-magnet fixed block is provided with two circles of second magnet mounting holes which match positions and heights of the first magnet mounting holes in an annular array manner. The first magnet mounting holes and the second magnet mounting holes are internally provided with magnets. The rotating rod and the in-magnet fixed block are coaxially mounted fixedly. The fixed block is fixedly mounted at top of the base. By means of different polarities among the magnets, an intermittent feeling in turning of the turn button is realized. A rotating elastic force of each gear is controlled by means of distances of the polarities among the magnets. The magnitude of the torsion of each gear is calibrated on a rotation torsion testing platform of the permanent magnetic torsion calibration device through a standard torsion sensor. After calibration is finished, the permanent magnetic torsion calibration device is used for torsion standard calibration of other nonstandard automatic equipment.

Description

[0001] Technical field: [0002] The invention relates to a permanent magnet torque calibration device. [0003] Background technique: [0004] The torque limiter is a component that connects the main engine and the working machine. Its main function is overload protection. When the required torque exceeds the set value due to overload or mechanical failure, the torque limiter limits the transmission system in the form of slippage. The transmitted torque will automatically restore the connection when the overload situation disappears. During the production process of the torque limiter, it is necessary to use different standard torque calibration devices for torque qualification testing. The traditional mechanical torque calibration device has low test accuracy and is prone to wear after long-term use, which will affect its service life. [0005] Invention content: [0006] The technical problem to be solved by the present invention is to provide a device that uses the mutual...

AI Technical Summary

Problems solved by technology

During the production process of the torque limiter, it is necessary to use different standard torque calibration devices for torque qualification testing. The traditional mechanical torque calibration device has low test accuracy and is prone to wear after long-term use, which will affect its service life.

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