Structural features:

● Advanced end-face flow distribution design, smooth rotation at low speed.

● Advanced shaft seal design, can withstand high back pressure.

● Advanced oil distribution mechanism design. With automatic wear compensation function.

● Double row tapered roller bearing design can withstand large radial force.

● A variety of flange, output shaft, and other installation and connection forms.

1. Discontinuous refers to the maximum pressure at the entrance, and continuous working pressure refers to the difference of working pressure.

2. The motor should not work under the highest pressure and the highest speed at the same time.

3. The running time of the motor should not exceed 10% under intermittent working conditions.

4. Maximum operating temperature 80*.

5. The maximum allowable back pressure of the motor is 10MPa, but it is recommended that the back pressure should not exceed 5MPa. If the back pressure exceeds 5MPa, the leakage pipe should be connected.

6. It is recommended to run the motor under 40% of the maximum working pressure for 1 hour before working at full load.

7. It is recommended to use 68# anti-wear hydraulic oil, viscosity 37-73CST, cleanliness ISO18/13.

Cycloidal motor is used in the driving and rotation system of drilling RIGS and other equipment. It has the characteristics of high efficiency, reliability and compact structure. After several drilling machines of my company have been used for a period of time, the cycloid hydraulic motor of this specification in the machine is exported to the shaft oil seal oil leakage. Every time it encounters a slightly hard geological structure, the rotation of hydraulic motor crane drilling tool and drilling speed are gradually reduced, and the rotation torque is reduced, which seriously affects the high exploration efficiency. After inspection and identification, the pressure derived from the hydraulic cylinder and control valve is all normal. The drowsiness of drilling tool rotation is caused by the common problems of the oil motor. After changing the new oil motor of the same model and specification, everything can be normal in operation.

1. Structure type and basic concept of cycloid hydraulic motor

6. Cycloid hydraulic motor is mainly composed of export shaft, cover, roller bearing, long linkage shaft, roller bearing housing, fixed motor rotor pair, valve disc, small linkage shaft, valve plate, torque torque spring. The oil motor has the characteristics of low speed and high torque.