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Split cylinder-type torque sensor

A torque sensor and barrel technology, applied in the field of sensors, can solve problems such as reducing the stiffness of the system, and achieve the effect of improving measurement sensitivity and simple structure

Active Publication Date: 2019-05-21
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to improve the measurement sensitivity, the magnitude of the strain can be increased by reducing the torsional stiffness of the sensor itself, but this will reduce the overall stiffness of the system, which is often not allowed

Method used

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Embodiment Construction

[0022] The present invention is further described below in conjunction with accompanying drawing:

[0023] Please refer to the accompanying drawings: a split-tube torque sensor, including a split-tube structure 1, a detection device 8, a rigid section 6 and a connection interface; the split-tube structure 1 is a cylinder with two ends open, and the upper edge There is a through groove with the same length as the cylinder in the axial direction; the detection device 8 is arranged on the through groove, and the detection device 8 is connected to the side walls of the cylinder on both sides of the through groove; the two ends of the split cylinder structure 1 are respectively fixed by the rigid section 6 Connected with connection interface.

[0024] The connection interface includes a connection ring 2 and a fixed plate 9; one end of the connection ring is fixedly connected to the fixed plate 9 to form a connection interface, and the fixed plate 9 is provided with several bolt ho...

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Abstract

The invention discloses a split cylinder-type torque sensor, which comprises a split cylinder structure, a detection device, rigid segments and connecting interfaces, wherein the split cylinder structure is cylindrical with two ends opened, and the side wall of the cylinder is provided with a through groove with the same length as the cylinder along the axial direction; the detection device is arranged on the through groove and is connected with the side walls of the cylinder at two sides of the through groove; and two ends of the split cylinder structure are fixedly connected with the connecting interfaces through the rigid segments. The amplification effects of the split cylinder structure on torsion deformation are used, the measurement sensitivity can be greatly improved on the premiseof not sacrificing the torsion rigidness, and after a detected object is connected, the rigidness of the system is little influenced.

Description

technical field [0001] The invention belongs to the technical field of sensors, in particular to a split cylinder torque sensor. Background technique [0002] Torque measurement is an indispensable content in the development, quality inspection, optimization control, working condition monitoring and fault diagnosis of various mechanical products (robots, internal combustion engines, fans, etc.). The strain type torque sensor is the most widely used type of torque sensor: the measurement bridge (Huygens bridge) is formed by pasting the strain gauge on the elastic shaft. When the elastic shaft is slightly deformed by the torque, the resistance value of the bridge changes. The change in the resistance of the strain bridge is converted into a change in the electrical signal to realize the torque measurement. The strain gauge torque sensor is characterized by a large measurement range, low price, and easy selection. [0003] In order to improve the measurement sensitivity, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L3/04
Inventor 陈贵敏马付雷梅雪松赵飞
Owner XI AN JIAOTONG UNIV
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