Solutions to common unexpected faults in hydraulic system;
A, in the case of normal hydraulic system, due to the hydraulic system belongs to the electrical system failure (including control system failure), the system was suddenly forced to stop. In most cases, the abnormal shutdown caused by sudden power failure during normal work makes people stay at high altitude and can't get off, so in daily use, we must follow the instructions of the manufacturer and pay attention to maintenance and screw protection.
Secondly, from the structure of the equipment hydraulic system itself, due to the complex structure and numerous pipelines, including several hoses that are tens of meters long, during the operation of the machine, the hydraulic lifting mechanism of the manufacturer moves, and the high-pressure hoses are repeatedly bent, which is easy to fatigue and break. The equipment load changes greatly, and the hydraulic system will produce hydraulic pulsation. When the pulsating pressure reaches a certain value, the high-pressure hose will be damaged. Secondly, a part of the screw protection sleeve in the hydraulic system assembly fails during operation, which will lead to the failure of the system and forced to stop.
According to the above analysis, some specific technical requirements are put forward for the design of hydraulic system of hydraulic elevator. In view of the failure of the hydraulic system, the hydraulic cylinder needs to move with the lifting mechanism because it is the leading driving force of lifting. At this time, the hydraulic cylinder is not only the driving force for lifting, but also the supporting member of the elevator during construction. Therefore, the hydraulic cylinder and its connecting pipes play a major role in the whole safety system. Therefore, in the design of hydraulic pipeline, we should use hard rubber steel wire mesh tubing as much as possible, and ensure the piping requirements of tubing to reduce the possibility of hydraulic system failure caused by system pipeline rupture and leakage.