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High torque hydraulic motors

time2012/02/23

High torque hydraulic motors

Hydraulic motor the custom is refers to the output of the rotary motion, will provide the hydraulic pump hydraulic change into the mechanical energy conversion devices. Hydraulic motor also called the motor oil, mainly used in injection molding machine, the ships, the Yang machine, etc. High-speed motor, gear motor has small volume, light weight, simple structure, good in usability, is not sensitive to the oil pollution, impact resistance and the inertia small, etc. A large torque ripple shortcomings, low efficiency, starting torque (only 60% of the rated torque-70%) and low speed poor stability.
Hydraulic motor according to the structure types to points can be divided into gear type, vane, piston type and other type. According to the rated speed hydraulic motor into express and low speed two kinds big. The rated speed is higher than 500 r/min belongs to high speed of hydraulic pressure motor, the rated speed below 500 r/min belongs to the low speed hydraulic motor. The hydraulic motor type have the basic gear type, screw and vane and axial piston type, etc. Their main characteristics is high speed, the rotation inertia small, easy to start and braking, adjust (speed regulation and reversing) high sensitivity. Usually the hydraulic motor output torque is so called the small torque hydraulic motor. Low speed hydraulic motor is the basic type radial piston type, in addition in the axial piston type, vane and gear type in a low speed structure, low speed hydraulic motor is the main characteristics of large displacement, big volume low speed (sometimes can reach every few minutes to turn even a few tenths of turn), so can be connected directly with work institutions; Don't need to slow down device to make the transmission mechanism is simpler, usually low speed hydraulic motor output torque bigger, so called big torque and low speed hydraulic motor.