Hydraulic seals are a small but critical part of the entire hydraulic system, but their damage can usually lead to unsustainable work of the entire hydraulic equipment, such as impact, climbing and other common failures, so hydraulic seals should be regularly inspected and maintain. For the selection of hydraulic seals, it is recommended to choose high-quality hydraulic sealing solutions that meet the working conditions to prevent safety accidents.
The common failures of hydraulic equipment and machinery, and the common failures of CNC lathes and high{{0}}speed punching machines cannot work, and must be shut down to check and check the hydraulic seals. If it is found that the outer circle of the sealing ring of the piston frame has been ground away, the diameter is 0.8mm lower than the standard size, and the gap between the piston and the cylinder is large. Causes oil channeling between the 2 oil chambers in the longitudinal cylinder. During maintenance, after removing and replacing the piston and sealing ring that meet the standards, the common faults of the CNC lathe punching needle are cleared. When the profiling tool holder is in place, the tool holder suffers from the overall impulse f'. After dissolution, the horizontal torque f'1 acts on the piston rod of the longitudinal cylinder. In addition, when the relay is working, the longitudinal cylinder has a crank chamber connected to the working pressure oil, and the crank chamber is connected to the speed change. In the valve pump oil control circuit, the force F of the piston rod cavity is carried out by two parts, that is, the force bearing area of the rodless cavity. The piston moves to the rodless cavity under the effect of the force F, because the gear oil cannot be reduced, the working pressure of the gear oil in the rodless cavity is greatly increased, resulting in a condensing type of the piston, and the force balance of the piston is based on the speed control valve. Because of the effect of F, the working pressure of P2 in the longitudinal cylinder room will exceed the working pressure of P1.
Because of the gap between the two chambers of the cylinder, the gear oil tends to flow from the rodless chamber in the high pressure zone into the rodless chamber in the bottom pressure zone. Once the fluidity is generated, p2 decreases, p increases, F1 expands, the piston force is unbalanced, and the piston driver tool holder moves quickly to the rodless cavity. After a moment, because the downward fitness movement of the profiling tool holder is completed, the horizontal torque f acting on the piston of the longitudinal cylinder disappears, the piston moves quickly, the movement of the tool holder is stable, and the state of the stamping die is completed.