What should I do if the cylinder of the bending machine leaks oil?

Hydraulic bending machine adopts all-steel welded structure, which has enough strength and rigidity, is stable and reliable, and is suitable for large steel structure, iron tower, street lamp pole, high lamp pole, automobile cross beam, automobile cargo box and other related industries. General hydraulic bending machine will not break down, but it is not ruled out. How to maintain the oil cylinder sliding of hydraulic bender? What should I do if the cylinder of the bending machine leaks oil? Let's have a look. 1. How to keep the hydraulic bender cylinder sliding?

Reason for failure:

1. Back pressure valve and poppet valve are dirty or damaged.

2, the back pressure is small.

3. Greer's circle is tense and worn.

4. The inner wall of the oil cylinder is tightened.

5. If the slider stops at any position and slides slowly, it will slide less than 0.50mm within 5 minutes, which is normal, mainly due to the characteristics of hydraulic oil.

Solution:

1. Clean the back pressure valve and poppet valve, and replace them if damaged.

2. Re-adjust the pressure of the back pressure valve according to the standard.

3. Replace the potential ring and check the causes of deformation and wear of the potential ring.

4, generally due to oil pollution, replace the cylinder and sealing ring.

5, no need to deal with.

Second, how to deal with the oil leakage from the oil cylinder of the bending machine?

The oil cylinder of the bending machine consists of a piston, a jacket, a piston rod and a screw. The oil leakage of oil cylinder is generally caused by the aging or deformation of the sealing rings on the outer wall of piston and the inner wall of water jacket. Of course, the direct way is to replace the sealing ring. Generally, the sealing rings used by most manufacturers of domestic bending machines are from Taiwan Province Province and Japan, so the service life of sealing rings is relatively long. If the cylinder of the bending machine used leaks oil, when replacing the sealing ring, you must choose a high-quality and durable sealing ring. So that the replaced cylinder will not leak oil for a long time.

Steps to replace the sealing ring: according to the design of each bending machine. There is a worm gear box on the oil cylinder of the common bending machine, in which there is a worm gear and a piston connected with the oil cylinder by a screw. Remove this place first, and then remove the screws. At this time, there must be auxiliary forces such as cranes or forklifts, which is difficult and dangerous. Be sure to install the suspension spring lever slowly, and don't use too much force to damage the piston. After it is removed, you will find that there are many sealing rings on the outer wall of the piston, which are generally divided into dust-proof rings, O-rings, sealing rings, washers and so on. The most important thing is the sealing ring, others generally do not need to be replaced. Of course, if the damage is found to be very serious, it doesn't hurt to replace it.

After replacing the sealing ring, external force is needed to assist in installing the oil cylinder. After everything is installed, the most important thing is to debug the cylinder stroke and the angles on both sides (this usually requires professional debugging). When debugging, you must first adjust the pressure of the bending machine to about 5- 10MPA, then find a few thin plates for repeated experiments, and then adjust the stroke of the oil cylinder. Generally, the oil cylinder on the right will prevail (depending on the actual situation), and adjust the oil cylinder on the other side until the angle is the same. Then adjust the pressure to normal and find some thick plates to do experiments. This is basically done!