Open and close type torque sensor

Abstract

An open-close torque sensor of the invention belongs to the torque sensor technical field. The problem to be solved is to provide a torque sensor with a sensitive beam arranged in the sensor, which adopts a slip ring technology and is used for measuring the torque of a high speed and heavy load shaft. The adopted technical scheme is that two semicircle annular main bodies with the same structure are symmetrically fixed to a transmission shaft through screws. The structure of the main bodies is that the upper end and the lower end of the inner lateral of an external half casing are all equipped with fastening semi-rings. An inner semi-ring is fixed between the fastening semi-rings. The external end of the inner semi-ring is equipped with a small insulation semi-ring, a small conductive semi-ring, a large conductive semi-ring and a large insulation semi-ring from inside to outside. A groove on the inner end of the inner semi-ring is fixed with amplifying and converting elements. The end surfaces of the fastening semi-rings are fixed with connecting semi-rings. A sensitive beam is arranged between the connecting semi-rings. The lateral of the sensitive beam is fixed with a strain gauge. The connecting semi-rings are connected with matching semi-rings. The inner surfaces of the matching semi-rings are in contact with the transmission shaft. The invention can be widely applied to various axial torque measuring fields.

Description

technical field [0001] The invention relates to a tension sensor, which belongs to the technical field of torque sensors. Background technique [0002] In order to solve the torque test problem of large crawler vehicle engine and transmission box, and for the shaft torque test problem where the sensor cannot be installed at the shaft end, the space of the power cabin is small, and the exposed shaft is small in size, a split-type compact torque measurement scheme is proposed, and the collector ring The technology is introduced into the design of the torque sensor. The lead wire of the strain gauge pasted on the sensitive beam is led to the input end of the measurement circuit. After amplification and conditioning, the weak signal is transmitted by the collector ring device. Usually, when the shaft is subjected to torque, as long as the size and material of the shaft are determined, the shear strain of the shaft and the relative rotation angle of the two end faces of the shaft...

AI Technical Summary

Problems solved by technology

The brush structure equipped with a compression spring is easy to wear, the reliability is poor, and the signal-to-noise ratio of signal transmission is low

On the other hand, most of the existing torque sensors are mounted on the shaft end, and their application has certain limitations.

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