A6VM Motor

A6VM motor is an axial piston variable motor produced by Rexroth, the following is a detailed introduction about its use:

First, working principle

A6VM motor is equipped with axial conical piston rotor group of inclined shaft design, which belongs to the rotating theoretical input displacement variable hydraulic motor. It is a rotary hydraulic motor with variable theoretical input displacement. The pressure of the hydraulic fluid drives the axial tapered plunger to reciprocate in the rotor group, which in turn drives the output shaft of the motor to rotate, realizing the conversion of hydraulic energy into mechanical energy. Its displacement can be infinitely changed from the maximum displacement Vg maxV_{g \ max}Vg max to the minimum displacement Vg min=0V_{g \ min} = 0Vg min=0, the output speed depends on the flow rate of the pump and the displacement of the motor itself, and the output torque increases with the pressure difference between the high pressure side and the low pressure side, as well as the increase of the displacement.

Second, Applicable Scenarios

1. Circuit type: suitable for hydrostatic transmission in open and closed circuits.

2. Application equipment: commonly used in traveling machinery (such as cranes and other large load, high precision machinery) and fixed application scenarios, to provide power support for these equipment to meet the needs of different working conditions.

Third, preparation before use

1. Personnel requirements: Project planning, installation and commissioning of the axial piston unit must be carried out by qualified personnel. Before using the axial piston unit, read the corresponding instruction manual completely, which can be obtained from Bosch Rexroth if necessary.

2. Selection of medium: The applicable medium is hydraulic oil. Make sure that the quality and cleanliness of the hydraulic oil meets the requirements in order to ensure the normal operation of the motor.

Fourth, operation process precautions

1. Safety protection: During and shortly after operation, the axial piston unit (especially the solenoid) may pose a risk of burns, and the operator should take appropriate safety measures, such as wearing protective clothing.

2. Parameter monitoring: Care should be taken to monitor the motor's operating pressure, temperature, speed and other parameters to ensure that they are within the normal operating range. For example, take A6VM80HA2U1 as an example, the working pressure is 16MPa, the limit pressure is 10MPa, the working temperature is 50℃, and the rotational speed is 16RPM, etc. The specific parameters are different for different models. If there is any abnormality in the parameters, the machine should be shut down in time for inspection and troubleshooting.

Fifth, maintenance

1. Regular inspection: Regularly inspect the various parts of the motor, such as the plunger, flow distribution disk, etc. for wear and damage, and check whether the seals are aging, leakage, and if there is any problem, it should be replaced in time.

2. Clean the system: Keep the hydraulic system clean, replace the hydraulic oil and filter regularly to prevent impurities from entering the motor and affecting its performance and service life.

Sixth, control mode

1. Displacement control: through the regulator to control the size of the displacement to achieve the predetermined demand, its displacement will change with the change of the X-port pilot control pressure, a wide range of control so that the variable motor can meet the requirements of high speed and high torque.

2. Various control devices: A variety of control devices are available, which can be reasonably configured according to the actual application scenarios and needs.

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