Structural principle of torque self-test inner curve hydraulic motor

Structural principle of torque self-test inner curve hydraulic motor
In order to improve the torque measurement level of the internal curve hydraulic motor, based on the comprehensive analysis of the existing torque measurement technology, the structural principle of the torque self-test internal curve hydraulic motor is proposed, and the structural characteristics of the hydraulic motor and the composition of the torque measurement system are analyzed. The piezoelectric ceramic force sensor is used to measure the torque of the hydraulic motor stator, and then the torque of the motor output shaft is calculated, and the torque measurement and the torque transmission are integrated. The complicated torque measurement is a simple pressure measurement, which simplifies the torque measurement system. Improves the accuracy performance of torque measurement.
introduction
The inner curve motor is a low-speed high-torque hydraulic motor, which is mainly composed of a stator, a rotor, a plunger, a roller set, a distribution shaft, an output shaft and an end cover, and the inner side of the stator is composed of a plurality of curved surfaces having exactly the same shape. The stator acts both as a housing for the motor and as a curved surface of the roller for supporting the roller set for torque transmission.
The internal curve hydraulic motor has a series of characteristics such as small size, light weight, large transmission torque, large shift range, high starting efficiency and low speed stability. It has been obtained in mining machinery, engineering machinery, lifting and transportation machinery, engineering ship machinery. A wide range of applications. In order to detect the output torque of the internal curve hydraulic motor, and thus to monitor and control the operating state of the transmission system, it is usually necessary to install a torque sensor between the internal curve hydraulic motor and the load.

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