What are the faults of the hydraulic system in the CNC shearing machine?

What will happen to the hydraulic system of the CNC shearing machine:

1. Heat due to the different flow rates of the force transmission medium (hydraulic oil) in the flow process, resulting in a certain amount of internal friction inside the hydraulic cylinder, and friction between the liquid and the inner wall of the pipeline, all of which cause the hydraulic oil The reason for the temperature rise. An increase in temperature will increase internal and external leakage and reduce its mechanical efficiency. At the same time, due to the higher temperature, the hydraulic oil will expand, resulting in increased compressibility, and the control action cannot be transmitted well. Solution: Heat generation is an inherent feature of the hydraulic system, which cannot be eradicated and can only be reduced as much as possible. Use good quality hydraulic oil, avoid elbows in the layout of hydraulic pipelines, use high-quality pipelines, pipe joints, hydraulic valves, etc.

CNC Shearing Machine

2. Vibration The vibration of the hydraulic system is also one of its chronic problems. The shock caused by the high-speed flow of the hydraulic cylinder in the pipeline and the shock caused by the opening and closing of the control valve are the reasons for the vibration of the system. Strong vibration can cause errors in system control actions, as well as errors in some of the more sophisticated instruments in the system, leading to system failures. Solution: The hydraulic pipeline should be fixed as far as possible to avoid sharp bends. The hydraulic cylinder should avoid frequent changes in the direction of the fluid flow, and vibration reduction measures should be taken when it is unavoidable. The entire hydraulic system should have good vibration damping measures, and at the same time, avoid the impact of external vibration sources on the system.

3. Leakage The leakage of the hydraulic system is divided into internal leakage and external leakage. Internal leakage refers to the leakage process that occurs inside the system, such as the leakage on both sides of the hydraulic cylinder piston, the leakage between the control valve spool and the valve body, etc. Although internal leakage will not cause loss of hydraulic oil, due to leakage, the established control action may be affected until it causes system failure. External leakage refers to the leakage that occurs between the system and the external environment. Hydraulic oil leaks directly into the environment. In addition to affecting the working environment of the system, Wuxi Shenchong feels that this will also lead to insufficient system pressure and cause malfunctions. The hydraulic oil that leaks into the environment also poses a fire hazard. Solution: Use better quality seals to improve the processing accuracy of the equipment.