Network optimization information:

The reasons for low speed driving of hydraulic motor are as follows:

The friction force is unstable. The normal friction increases with the increase of speed. The friction resistance inside the motor working in the static and low-speed areas does not increase but decreases when the working speed increases, forming the so-called negative characteristic resistance. On the other hand, the hydraulic motor and load are pushed by the pressure rise after the hydraulic oil is compressed. The physical model represents the working process of the hydraulic motor in the low-speed area: average speed v. At one end of the push spring (equivalent to the incompressible working medium under high pressure), an object with a mass of m (equivalent to the mass of the motor and load, rotating inertia) overcomes the friction resistance movement with negative characteristics. High resistance when the object is stationary or the speed is low, MS Low speed high torque hydraulic motor The spring continuously compresses to increase the thrust. The spring does not start to move until its thrust is greater than the static friction force. When the object starts to move, the resistance suddenly decreases, and the object suddenly accelerates and jumps, thus reducing the compression of the spring, MSE internal curve hydraulic motor Reduce the thrust, and the object stops after a certain distance of inertia, until the movement of the spring compresses the spring, the thrust increases, and the object jumps again