Excavator Hydraulic Gear Pumps Maufacturer CMF-F5

Engineering Vehicle Hydraulic Gear Pump CMF-F5

Gear pump CMF-F5

The CMF-*5 series gear motor housing is made of high-strength composite alloy materials, and the internal structure adopts many advanced technologies such as pumping gap floating compensation, radial balance, and DU self-lubrication. This series of motors has the advantages of high working pressure, high volumetric efficiency, small starting torque, and long life. It is used in hoisting machinery, road construction machinery, environmental protection machinery, petroleum machinery and other industries.

Precautions for use:

1. It is recommended to use L-HM46 anti-wear hydraulic oil in summer and L-HM32 anti-friction hydraulic oil in winter, or hydraulic oil with similar viscosity. tooth

The back pressure of the wheel motor oil drain port shall not be greater than 0.4Mpa.

2. The working oil should be kept clean. It is recommended to install an oil filter with a filtration accuracy of 80-100um in the suction pipe of the pump, and install the oil return pipe.

Use an oil filter with a filtering accuracy of 25um and clean or replace it regularly according to the degree of oil contamination.

3. If there is an oil filter at the oil inlet of the oil pump, it should be ensured that its effective flow rate should be greater than twice the maximum oil suction flow rate and should be kept smooth to prevent blockage.

The capacity of the open oil tank is greater than the flow rate of the oil pump for 3 to 4 minutes, and the capacity of the closed oil tank is greater than the flow rate of the charge pump for 3 to 5 minutes.

4. It is strictly stipulated that before the installation of the oil pump begins, oil must be filled and exhausted so that the oil pump can absorb oil in time when driving. It is best to

In the pressure pipeline, loosen a pipe joint and move the power component. Let the oil flow out until there are no bubbles and then tighten the joint (operate

Special attention should be paid to this operation. Failure to perform this operation is the most common cause of initial damage to the pump). After installation, it should be no less than 10 minutes

Clock no-load and short-term low-load operation. Avoid starting and stopping with load.

5. The temperature of the oil pump should not exceed 80C during continuous operation, and the instantaneous operating temperature should not exceed 100C to avoid premature aging of the sealing components.

Remark:

Management path:

Pump output flow:

Pump input power:

Output torque:

In the formula:

  Q is the flow rate, the unit is L/min.

  V is the flow velocity of oil in the pipeline, unit m/s.

Recommended flow rate:

  Suction pipeline: 0.5~1.5; Pressure pipeline: 3~10;

  Return line 1.5~2.5

In the formula:

  q is displacement, unit is ml/r.

  n is the working speed, the unit is r/min.

  ηv is the volumetric efficiency of the pump, generally 0.88~0.95.

In the formula:

  p is the motor working pressure, the unit is Mpa.

  q is the theoretical displacement of the motor, in ml/r.

  ηm is mechanical efficiency, generally 0.80~0.85.

In the formula:

  p is the working pressure, unit Mpa.

  q is the theoretical displacement in mL/r.

  n is the working speed, the unit is r/min.