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Introduction to hydraulic motor
2012-10-21 16:27:25 intra-italy 点击数:


Basic information

Y èy āmǎ Dá

Hydraulic motor

Hydraulic motor

Definition and usage

A hydraulic motor is used to refer to the output rotation movement, will be provided by a hydraulic pump hydraulic energy into mechanical energy conversion device.

Hydraulic motor or motor oil, mainly used in injection molding machinery, ships, Yang machine, construction machinery, construction machinery, mining machinery, mining machinery, metallurgical machinery, ship machinery, petrochemical industry, port machinery.

High speed motor gear motor has the advantages of small volume, light weight, simple structure, good manufacturability, oil pollution not sensitive, impact resistance and inertia of small advantages. Shortcomings have torque ripple, low efficiency, starting torque is small (only rated torque 60% -- 70%) and low-speed stability difference.

Vane motor

Vane motor vane motor and other types of motor phase comparison has the advantages of compact structure, small size, low noise contour, long life and other advantages, its inertia than plunger motor small, but anti pollution ability than the gear motor is poor, and the speed can not be too high, generally below 200r/min work. Vane motor due to the leakage of the larger, so the load change or low speed instability.

Motor type

Radial piston motor

Axial plunger motor oblique axial piston motor

Swash plate axial piston motor

Low speed hydraulic motor radial piston motor connecting rod type hydraulic motor has the advantages of simple structure, reliable work, more varieties of different specifications, low prices. Its disadvantage is that the volume and the weight of the larger, torque ripple.

Rod type hydraulic motor

Oscillating cylinder type hydraulic motor

Roller type hydraulic motor

Axial ball piston motor

Vane motor

Gear hydraulic motor

Cycloid motor

Eighteen fifties stage, the initial low speed high torque hydraulic motor is composed of an oil pump of a rotor component development, this part is composed of an inner ring gear and a matching gear or rotor. Inner gear ring and the shell is fixed to connect together, from the oil inlet of the oil to drive the rotor revolves around a central point. The slow rotation of the rotor through the driven splined shaft output becomes cycloid hydraulic motor. The first gerotor motor launch, after decades of evolution, an alternative concept of the motor also began to form. This motor in the internal ring gear is installed in the roller. Having roller motor can provide higher starting and running torque, roller to reduce friction, thereby enhancing efficiency, even at very low speed output shaft can produce a stable output. By changing the input output flow direction so that the motor is rapid change, and in a two direction to produce such as the value of torque. The series motor has various displacement options, to meet a variety of speed and torque requirements.