Figure it out in a minute! The structure characteristic and basic principle of orbital motor

Cycloid hydraulic motor is an essential equipment in the driving force rotation system of drilling machine and other mechanical equipment. Compared with the general oil motor goods, the advantages of cycloidal hydraulic motor depends on its compact structure, reliable, high performance characteristics. In order to improve the utilization rate and high efficiency of cycloid hydraulic motor, this paper is to ETN6K series of products of oil motor as an example, the main structure and principle of a simple detailed introduction, in order to help people behind stronger application.

6K series cycloid hydraulic motor for the inner hole flow distribution, working pressure compensation type, the key by output shaft, top cover, rolling bearing, long connected shaft, rolling bearing housing, fixed rotor pair, valve disc, small connected shaft, flow plate and its torque torsion spring. Cycloidal hydraulic motor has the characteristics of low speed and large torque.

The cycloid hydraulic motor has six teeth cycloid rotor, CA50 series hydraulic motor is installed in the middle of the motor stator, and 7 arc tooth motor stator teeth, produce 7 sealed indoor space; Of the 12 holes above the distribution flow, 6 are connected with the oil inlet (return) hole, and the other 6 are connected with the oil inlet (return) hole. The seven holes on the disc assist the valve plate and the cycloid rotor to produce seven volume cavities. When the high pressure oil enters from the oil hole, the adjacent three chambers enter the high pressure oil. Under the effect of steam pressure, the cycloidal rotor rotates according to the direction of the volume expansion between the teeth of the high pressure cavity. Because the stator of the motor is fixed, the cycloidal rotor rotates tightly around the low speed of its center line, and at the same time rotates rapidly around the stator core of the motor in the opposite direction. When the cycloidal rotor revolution, namely, along the stator of the motor, its oil suction and discharge cavity continues to change, but the A2FE series hydraulic motor from beginning to end with two cores as the boundary is divided into two cavities, that is, the volume between teeth continues to increase for the high pressure cavity and the volume between teeth continues to decrease for the low voltage cavity. Rotation 1 turn (each tooth volume for 1 time into the pump oil circulation system) rotation 1 tooth, that is, cycloid rotor rotation 6 laps, only personal biography 1 laps, rotation and rotation of the transmission ratio 6:1. When the cycloidal rotor rotates for 1 turn, it carries out 42 cavity feeding and pumping transformation. The valve plate is driven by the small coupling shaft to rotate with the cycloid rotor to carry out the daily continuous flow distribution task, so that the volume of the high pressure chamber continues to expand and the cycloid rotor continues to rotate. The rotational kinetic energy of the cycloid rotor is sent to the output shaft according to the long connected shaft, so that the output shaft continues to rotate and output torque.