Dynamic torque measurement sensor with speed measurement function

Abstract

The invention discloses a dynamic torque measurement sensor with a speed measurement function. The sensor comprises an integral conductive slip ring, an elastomer spindle, bearings, a shell, and fastening screws. The integral conductive slip ring has an inner ring and an outer ring which can rotate relative to each other, and the inner ring and the outer ring lead out multiple wires respectively. The wires are connected inside the slip ring. The integral conductive slip ring sleeves the elastomer spindle. The elastomer spindle is rotationally supported on the shell through the bearings. The inner ring of the slip ring is fixed on the elastomer spindle by screws, and can rotate together with the elastomer spindle. The outer ring of the slip ring is fixed on the shell by a stop screw. The wires of the inner ring of the slip ring are connected with a strain gauge on the elastomer spindle. The wires of the outer ring of the slip ring are connected with a socket on the shell. Voltage and electrical signals are transmitted between the moving and static parts of the sensor through the integral conductive slip ring. The working speed range of the dynamic torque sensor is broadened, and the service life is prolonged. Moreover, the sensor is additionally provided with a speed measurement function.

Description

technical field [0001] The invention relates to a dynamic torque measurement sensor with rotational speed measurement, which is a high-speed and high-precision dynamic torque measurement sensor with the rotational speed measurement function. Background technique [0002] In the field of industrial testing, it is often necessary to use a dynamic torque measurement sensor to dynamically measure the magnitude of the torque during the rotary motion of the power transmission system. According to the motion state during work, the dynamic torque measurement sensor can be divided into a rotary motion part and a static part. The stable transmission of electrical signals between the moving and stationary parts is the key technology to ensure the performance of the dynamic torque measurement sensor. There are currently two main technical solutions , Carbon brush power supply technology and induction power supply technology. When the carbon brush is used for power supply, the manufactu...

AI Technical Summary

Problems solved by technology

When the carbon brush is used for power supply, the manufacturing cost of the dynamic torque sensor is low, and the technical difficulty is small, but the carbon brush power supply parts themselves are small in size, weak in rigidity, and the processing and assembly accuracy are not easy to control, so the dynamic torque sensor using this technology has a small working speed. , unstable signal transmission, large performance differences among individuals, short maintenance intervals, etc.

Inductive power supply technology solves the problems of carbon brush power supply technology, but there are disadvantages such as complex structure of mechanical and electronic components, susceptibility to external interference, high cost, and difficulty in debugging and maintenance.

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