1、 Hydraulic motor manufacturer Produced, supplied and sold Hydraulic motor For the working capacity of the rolling bearing under the radial force, the hydraulic motor manufacturer shall not install the belt pulley and other transmission equipment on the main shaft bearing immediately for the motor that cannot bear the radial force.

① The positive sprocket chain is driven by the hydraulic motor, and the conveyor belt roller is driven by the passive sprocket chain. The manufacturer of hydraulic motor found that some motors often leak oil, and the seal ring gradually leaked oil within 3 months after removal.

② The hydraulic motor manufacturer found that the hydraulic motor drives the belt pulley according to the chain drive, because the chain drive will also cause radial force, and the skeleton seal will deform after bearing the radial force, thus causing oil leakage.

2. Hydraulic motor chain drive

① The hydraulic motor manufacturer shall install the leakage oil pipe smoothly, and generally do not connect the back pressure type. When the leakage oil pipe is too long or connected to the back pressure type because of certain necessity, the hydraulic motor manufacturer will remind you that its size cannot exceed the allowable mark value for low voltage sealing.

② The external leakage oil shall be able to ensure that the housing of the hydraulic motor is full of oil, so as to prevent all the oil in the housing from flowing to the car oil tank during shutdown.

③ For hydraulic motors that have been shut down for a long time, the manufacturer of the hydraulic motor reminds the masses that they cannot run with full load immediately, and that they should wait for international idling for a period of time before all normal applications.

3. Sound card rack installed with motor shall have sufficient bending rigidity

① The support frame and motor shaft installed by the hydraulic motor manufacturer must have sufficient bending stiffness to bear the axial force of the hydraulic motor when it outputs the torque.

② Insufficient bending stiffness of the sound card rack installed with the hydraulic motor may cause vibration or deformation, or even safety accidents. It is impossible to ensure that the coaxiality of the connection between the propeller and the motor shaft is controlled within 0.1mm.

4. Hydraulic motor and transmission are not suitable for supporting facilities

    ① Hydraulic transmission One of the characteristics of the system is that the output power to weight ratio is large, and in general, the hydraulic motor control circuit itself can perform general speed change and speed regulation.

② If the hydraulic motor is used together with the driving gear transmission, it will lose the control characteristics of the hydraulic press, and at the same time, the volume and cost of the machine and equipment will be significantly increased.

5. The oil drain port of the hydraulic motor should return to the car oil tank independently

① Although the working pressure of all pump oil is not high from the general definition, the pump oil in many hydraulic transmission systems may have a certain working pressure, and the oil discharge chamber of the hydraulic motor is not allowed to have working pressure.

② The internal part of the oil drain port of the hydraulic motor is connected with the housing cavity. The pump seal of the motor shaft produced by the hydraulic motor manufacturer only serves as a seal and does not resist pressure. The hydraulic motor manufacturer reminds that if this port is connected with other oil return pipelines, it is very easy to damage the seal of the Mada pump and cause oil leakage, Therefore, it is not allowed to connect the oil drain port of the hydraulic motor with other oil return pipelines.

6. The hydraulic motor is not suitable for gas inlet

① When the hydraulic transmission system is in the original work, it is difficult to avoid having gas in the pipeline of the system software.

② A key content of system software adjustment is to empty the gas in the system software, which is especially important for hydraulic motors.

③ There is a whole process of hydraulic press material suddenly changing from high voltage to low voltage in the motor, and the whole process frequency is very high, with the average value of 10 times per revolution.

④ When the gear oil entering the hydraulic motor contains gas, it will cause cavitation at the mutation of working pressure gene, which will rapidly destroy the motor.