Hydraulic Rotary Actuator Common Problems and Solutions (Part 3): Insufficient Rotation Angle
Release time:
2025-11-27 13:49
Source:
In the practical application of hydraulic rotary actuators, insufficient rotation angle is one of the common faults. This problem directly affects the normal operation of equipment. Analyzing its causes and adopting targeted solutions is crucial to ensuring the stable operation of equipment.
From the perspective of causes, insufficient rotation angle of hydraulic rotary actuators can be attributed to the following two reasons. Firstly, the transmission gear is distorted or severely worn. As a key transmission component for hydraulic rotary actuators to achieve rotational movement, the transmission gear may suffer from torsional deformation or severe tooth surface wear due to factors such as load impact and insufficient lubrication during long-term use. When the transmission gear fails to engage and transmit normally, the actuator will exhibit insufficient rotation angle. Secondly, the connecting pipe joint jams the piston. As an important component connecting the hydraulic pipeline and the actuator, if the length of the pipe joint is unreasonably designed, when the part of the joint connecting the actuator exceeds the wall thickness of the cylinder barrel, it will directly interfere with the piston, hinder the normal movement of the piston, and ultimately result in the actuator's rotation angle failing to meet the requirements.
In response to the above causes, the following corresponding solutions can be adopted. For the case of distorted or severely worn transmission gears, it is necessary to disassemble the actuator first and carefully inspect the tooth surface condition of the transmission gear. Once it is confirmed that the transmission gear has problems such as distortion and severe wear, the actuator is usually no longer suitable for continued use and should be replaced in a timely manner. Forcibly continuing to use it will not only fail to solve the problem of insufficient rotation angle but may also lead to more serious component damage. Regarding the problem of the pipe joint jamming the piston, it is necessary to focus on checking the length of the pipe joint to ensure that the part of the joint connecting the actuator does not exceed the wall thickness of the cylinder barrel. By adjusting or replacing the pipe joint with an appropriate length, the normal rotation angle of the actuator can be restored.
When dealing with the problem of insufficient rotation angle of hydraulic rotary actuators, it is necessary to accurately identify the cause and operate with reference to the corresponding solutions to avoid blind disassembly or replacement of components. At the same time, in the daily use process, attention should be paid to the regular maintenance of the actuator, including regularly checking the meshing condition of the transmission gear, ensuring good lubrication, and standardizing the installation of components such as pipe joints. This will reduce the occurrence of such faults from the source and extend the service life of the hydraulic rotary actuator.
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