Structural characteristics of

The design of fixed rotor with insert column has higher oil distribution accuracy and mechanical efficiency.

Double rolling bearing design, with greater lateral bearing capacity.

Reliable shaft seal design, withstand high back pressure, can be used in series and parallel.

Positive and negative conversion to convenient, stable speed.

A variety of oil port, output shaft, flange and other connection forms.

1, intermittent refers to the maximum pressure at the entrance, continuous working pressure refers to the working pressure difference.

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

3, the motor in intermittent working conditions, the running time should not exceed 10%.

4, the highest operating temperature BD%

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

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

7, the recommended use of 68# anti-wear hydraulic oil, viscosity 37-73CST, cleanliness ISO18/13-

  Inner curved stator and piston pump repair. The ultra-high pressure oil from the hydraulic oil pump is distributed to the tangential piston on the engine cylinder block (rotor) through the inlet of the stator oil distribution shaft. The other end of the piston is connected with the roller, which is closely attached to the inner curved stator with axial force travel arrangement by back pressure. The piston of the high-frequency hydraulic vibration motor is at the bottom TDC position. When the roller contacts the high point of the inner surface of the stator, the piston is at the bottom dead center, and the hydraulic oil is pressed back into the tank through the oil return port on the oil shaft. According to the drive distance caused by the repeated movement of each piston in the engine cylinder (rotor) hole, the engine cylinder (rotor) is driven to rotate and transmitted by the spindle of the machine tool. If the piston pump and the rotor hole damage is more serious will cause harm to the pulse of the oil motor distance and speed ratio, and the roller component on the front side of the piston pump and the sliding rail of the stator surface if more serious damage, the same will cause the working pressure pulse and impact. The overall damage of the inner curved stator is serious and the stator components must be replaced. The partial damage is repaired by laser cladding wear-resistant aluminum alloy. The piston hole on the piston and rotor is damaged beyond the limit, and the piston hole is boring for production and processing. At the same time, the piston with increased specifications is replaced. Some pistons and holes are damaged beyond the limit, and the hydraulic motor of rotary excavator adopts the method of separate production and processing.