Gear hydraulic motor: In order to meet the requirements of forward and reverse rotation, hydraulic motor the gear motor has equal oil inlet and outlet ports, symmetrical,hydraulic motor and a separate external drain port to lead the leaking oil of the bearing part out of the housing; in order to reduce the starting friction torque,hydraulic motor rolling bearings are used; In order to reduce torque pulsation, the gear hydraulic motor has more teeth than the pump.
Gear hydraulic motors have poor dry sealing performance, low capacity and rent efficiency,hydraulic motor input oil pressure can not be too high, can not produce large torque. And the instantaneous speed and torque change with the position of the meshing point, so the gear hydraulic motor is only suitable for high-speed and small-torque occasions. Generally used in dry construction machinery, agricultural machinery and machinery and equipment that does not require high torque uniformity.
High-speed hydraulic motor: A motor with a rated speed higher than 500r/min is a high-speed motor. The basic forms of high-speed motors are gear type, vane type and axial plunger type. Their main features are high speed and low moment of inertia, which are easy to start, brake,hydraulic motor adjust speed and change direction. Low-speed hydraulic motor: A hydraulic motor with a speed lower than 500r/min is a low-speed hydraulic motor. Its basic form is the radial plunger type. The main features of low-speed hydraulic motors are: large displacement, large volume, low speed, can be directly connected to the working mechanism,hydraulic motor no deceleration device is required, so that the transmission mechanism is greatly simplified,hydraulic motor and the output torque of low-speed hydraulic motors is large, up to several thousand. Tens of thousands of Nm,hydraulic motor so it is also called a low-speed high-torque hydraulic motor.
