Time:2023-04-06 13:52:00 Browse: 120
1. There is air in the hydraulic cylinder. Exclusion method conduct exhaust operation through the exhaust device, and check whether there is inhaled air at the sealing ring of the reciprocating movement part of the piston rod. If there is, the sealing ring may be faulty, and the sealing ring should be replaced.
2. Check whether the hydraulic pump is running normally. If the hydraulic pump runs irregularly, and the pump rolling is blocked or slightly bitten to death, clarify that the problem lies in the hydraulic pump, and repair or replace the hydraulic pump.
3. Check the working condition of the piston. When the hydraulic cylinder with buffer device of automobile interior hydraulic press starts in reverse direction, it often shows the phenomenon that the piston is temporarily suspended or backward. This is because the hole of the one-way valve is too small, which makes the amount of oil entering the buffer chamber too small and even presents vacuum. This kind of failure should increase the hole of one-way valve.
4. When the piston moves at a high speed, the steel ball of the one-way valve follows the movement, which causes the valve hole to block and the hydraulic cylinder to move irregularly. Solution: replace the steel ball with cone valve-loaded valve core with guide valve.
5. The hydraulic cylinder is not sensitive. The inner layer of the rubber hose is peeled off, making the oil circuit open and break, forming the irregular movement of the hydraulic cylinder. Solution: replace the rubber hose.
6. The hydraulic cylinder receives a certain lateral load, which is also one of the reasons for the slow movement of the hydraulic press. Solution: it is the same as the exclusion method that the hydraulic cylinder cannot move.
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