Cycloid Hydraulic Motor Use: Use Failure And Treatment

The cycloidal hydraulic motor is a small low-speed, high-torque hydraulic motor with a shaft-distributed insert and stator-rotor pair. How to deal with the failures often occurring in the use of cycloidal hydraulic motors, the    Hydraulic Motor manufacturers   stated: https://www.xjetl.com/product/hydraulic-motor-product

1. There are three kinds of oil leakage conditions in the motor.
(1) Oil leakage at the shaft end: Due to the frictional state of the oil seal and the output shaft during the daily use of the motor, the oil seal and the shaft contact surface will inevitably wear out. If the motor seal exceeds a certain limit, the oil seal will lose the sealing effect, resulting in leakage. oil. Solution: The oil seal needs to be replaced. If the output shaft is worn, it is necessary to replace the output shaft at the same time.

(2) Oil leakage at the cover: The “O” ring under the cover is crushed or aged and loses the sealing effect. The probability of this happening is very low. If it happens, just replace the “O” ring.

(3) Oil leakage in the motor pin: It is located in the motor housing and the front side plate, or the front side plate and the stator body, or the "O" ring between the stator body and the rear side plate is aged or crushed, if it occurs In this case, you only need to replace the “O” ring.

2, the reason why the motor is running weak:
(1) The stator body pairing is too loose. Because the motor is in operation, the components in the cycloidal hydraulic motor are in friction with each other. If the hydraulic oil in the system is too poor, it will accelerate the wear of the internal parts of the motor. . When the needle rod in the stator body wears beyond a certain limit, the internal clearance of the stator body pair will become larger, and the normal oil sealing effect will not be achieved, which will cause the internal leakage of the motor to be too large. The symptom is that the motor is operating normally under no load, but the sound will be slightly larger than normal, and it will be weak or slow under load. The solution is to replace the needle.

(2) Wear between the output shaft and the casing: The main cause of the failure is that the hydraulic oil is impure and contains impurities, which causes the inside of the casing to grind out the groove, which causes the internal leakage of the motor to increase, thereby causing the motor to be weak. The solution is to replace the housing or the entire pair.

3, large leakage outside the motor
(1) The clearance between the output shaft and the housing is too large: when the clearance between the output shaft and the housing is large and standard, the leakage of the cycloidal hydraulic motor will be significantly increased. Solution: Replace the new output shaft with the housing.

(2) An "O" ring with an excessively large diameter is used: when the "O" ring is too thick, the part plane cannot be properly fitted, and there is a large gap, resulting in an increase in motor leakage. This situation is generally rare, and the solution is to replace the “O” ring that meets the specifications.

4, why the motor does not turn or slow
(1) The drive shaft is broken: the drive shaft is a shaft connecting the cycloidal wheel and the output shaft, and the function is to transmit the rotation of the cycloidal wheel to the output shaft, when the motor is in an overload condition for a long time, or When the output shaft is subjected to a force in the opposite direction from the outside, it may cause the drive shaft to break. The breakage of the drive shaft is generally accompanied by the fact that the teeth of the output shaft and the teeth of the cycloidal wheel are bitten off. The solution is to replace the drive shaft and replace it if other parts are damaged.

5, Fa Lan fracture: This fault is also more common, which is mainly caused by the impact of the motor or the quality of the casting itself. The solution is to replace the housing.

As a professional    Hydraulic Motor manufacturers   and    Hydraulic Motor Suppliers    in China,    Taizhou Eternal Hydraulic Machinery Co., Ltd. can provide you with high quality products and services. Eternal Hydraulics is committed to becoming the global one-stop mall for global hydraulic products, with professional hydraulic solutions and quality products to meet the needs of each customer. The company firmly believes that “only the best can satisfy the best” and has become the preferred hydraulic component of choice for all customers worldwide.

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