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Non-contact torque testing apparatus based on fusion of thin metal ring and bearing

A torque testing, non-contact technology used in measuring devices, measuring forces, instruments, etc.

Active Publication Date: 2016-12-14
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a non-contact torque testing device that integrates thin metal rings and bearings in order to solve the existing problems in existing torque testing caused by environmental factors such as high-speed rotating motion of the rotating shaft and narrow spaces.

Method used

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  • Non-contact torque testing apparatus based on fusion of thin metal ring and bearing
  • Non-contact torque testing apparatus based on fusion of thin metal ring and bearing
  • Non-contact torque testing apparatus based on fusion of thin metal ring and bearing

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Embodiment Construction

[0019] A non-contact torque testing device in which a sheet metal ring is fused with a bearing, including a resistance element pasted on the tested part of the rotating shaft 1, and a capacitive element installed inside the bearing on the rotating shaft 1;

[0020] The resistance element is composed of a first strain gauge 3a and a second strain gauge 3b, one end of each strain gauge is connected to the rotating shaft 1 through a wire, and the mutual positional relationship between the two strain gauges needs to ensure The rotating shaft 1 rotates each resistance strain gauge to generate deformation;

[0021]The capacitor element includes a first insulating spacer ring 7a and a third insulating spacer ring 7c disposed on the outer diameter surface of the bearing inner ring 5b, and a second insulating spacer ring disposed on the inner diameter surface of the bearing outer ring 5a. 7b and the fourth insulating spacer ring 7d; the outer circle of the first insulating spacer ring ...

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PUM

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Abstract

The invention relates to the field of rotating shaft torque sensing and testing of the power driving unit, particularly to a non-contact torque testing apparatus based on fusion of a thin metal ring and a bearing and especially to the field of obtaining torque dynamic information of a rotating shaft by means of non-contact passive sensing. The torque testing apparatus comprises a resistor element pasted to a tested part of a rotating shaft and a capacitor element installed inside a bearing of the rotating shaft. The resistor element is formed by a first resistance strain gauge and a second resistance strain gauge; one end of each resistance strain gauge is connected to the rotating shaft by a lead; and deformation of all resistance strain gauges rotating with the rotating shaft can be guaranteed based on the mutual position relation of the two resistance strain gauges. According to the invention, the thin metal ring structure, the bearing inner ring, and the bearing outer ring are fused and thus the sensing structure of the thin metal ring is integrated inside the bearing, and assembling is carried out with the rotating shaft; and the torque dynamic information of the shaft can be tested or monitored in real time.

Description

technical field [0001] The invention relates to the field of torque sensing and testing of a rotating shaft of a power transmission device, in particular to a non-contact torque testing device in which a sheet metal ring and a bearing are fused together, and in particular acquires torque dynamic information of a rotating shaft in a non-contact passive sensing manner. Background technique [0002] The power transmission of rotary machinery mainly relies on shaft transmission, that is, the rotational motion of the shaft system is an important transmission mode of rotary machinery power transmission, in which torque is one of the most typical dynamic parameters that characterize the dynamic performance of the power transmission system, energy transmission and utilization efficiency of the transmission link one. The advancement of science and technology has promoted the rapid development of mechanical equipment in the direction of electrification, informatization, and intelligen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/22
CPCG01L1/2287
Inventor 陈昌鑫马铁华祖静靳鸿武耀艳裴东兴王宇李祖博
Owner ZHONGBEI UNIV