Hydraulic cylinder Crawling often occurs during use. After the signal is sent Hydraulic cylinder They do not act immediately, but act after a short pause, sometimes they can move, sometimes they stop for a long time, which is very irregular. The main reasons and troubleshooting methods for this insensitivity are as follows:

1. Removal method of excessive air in hydraulic cylinder: exhaust through exhaust valve; Check whether the air is sucked into the sealing ring at the reciprocating part of the piston rod. If yes, replace the sealing ring.  

2. There are irregular phenomena in the operation of the hydraulic pump, such as large vibration noise, severe pressure fluctuation, blocking of pump rotation, and slight seizure.

3. When the hydraulic cylinder with buffer device is started in reverse direction, the one-way valve orifice is too small, so that the amount of oil entering the buffer chamber is too small, even vacuum occurs. Therefore, when the buffer plunger leaves the end cover, the piston will stop or reverse for a while. The hydraulic cylinder check valve orifice needs to be enlarged during operation.  

4. When the piston moves at a high speed, the steel ball of the check valve flows with the oil flow, so that the valve hole is blocked, resulting in irregular action. When the flow of the equipment is large, it should be changed to a cone valve structure with guide shoulder.  

5. The inner layer of the rubber hose is peeled off, making the oil path open and close at all times, resulting in irregular action of the hydraulic cylinder. At this time, as long as we properly replace the rubber hose of the hydraulic cylinder, we can solve the problem.

The reason for the insensitive action of the hydraulic cylinder in the use process and the way to eliminate it must be understood by everyone. I believe that through the above knowledge, we can quickly and effectively solve similar problems in the use process later. At the same time, in order to avoid the occurrence of equipment failure, it is necessary to do a good job of equipment maintenance when using the equipment at ordinary times.