This article mainly introduces:

Greece hydraulic cylinder,limit position hydraulic cylinder manufacturer,limit position hydraulic cylinder

(Greece limit position hydraulic cylinder,produced by Hengyu Group）

limit position hydraulic cylinder are widely used in Greece，because of powerful torque，clever hydraulic energy conversion，simple structure and reliable operation.So our company has designed limit position hydraulic cylinder for customers from Greece.

Introduction to limit position hydraulic cylinder:

limit position hydraulic cylinder can not drive the load troubleshooting: oil pressure is too low. limit position hydraulic cylinder selection specifications are too small. Leakage in limit position hydraulic cylinder or associated hydraulic system element.

Under normal circumstances, the limit position hydraulic cylinder is composed of the rear end cover, body, piston, piston rod and front end cover and other main parts. In order to prevent the working medium from leaking out of the limit position hydraulic cylinder or from the high pressure chamber to the low pressure chamber, a sealing device (sealing ring) is arranged between the limit position hydraulic cylinder and the end cover, the piston and the piston rod, the piston and the limit position hydraulic cylinder, the piston rod and the front end cover. A dustproof device is also provided on the outside of the front end cover. In order to prevent the piston from impacting the end cap when it moves rapidly to the end of the stroke, the end of the limit position hydraulic cylinder can also be provided with a buffer device. If necessary, the exhaust device should be set in order to exhaust.

The limit position hydraulic cylinder should be used as far as possible to avoid the transverse force, sometimes the piston rod to bear the transverse load is too large, especially do not force or pull the limit position hydraulic cylinder, bite. Elimination method: When installing the limit position hydraulic cylinder, ensure that the axis position of the limit position hydraulic cylinder is consistent with the direction of movement; Make the load borne by the limit position hydraulic cylinder as far as possible through the limit position hydraulic cylinder axis, to avoid the phenomenon of eccentricity.

How the cavitation of the limit position hydraulic cylinder is formed: With the gradual rise of pressure, the gas in the oil will become bubbles, when the pressure rises to a certain limit value, these bubbles will break under the action of high pressure, so that the high temperature and high pressure gas will quickly act on the surface of the parts, resulting in cavitation of the limit position hydraulic cylinder, resulting in corrosive damage to the parts.

Answers to some questions about limit position hydraulic cylinder:

How to achieve hydraulic cylinder self-locking?
Hydraulic cylinder self-locking is divided into oil self-locking and mechanical self-locking. The oil self-locking is equipped with a valve to maintain pressure, so that the hydraulic oil of the cylinder does not return to the tank, and the oil chamber of the cylinder is filled with a certain pressure of oil. However, this pressure holding self-locking is not very safe and reliable, and the plunger will slowly return if there is a leak. Mechanical self-locking is to install a nut on the plunger of the cylinder, and when the cylinder rises to the required position, the nut on the cylinder plunger is rotated to the end, and the cylinder block is in contact, so that the plunger will be fixed to the required height. When it is necessary to relieve the pressure, screw the nut on again and let the plunger return to the position. This kind of cylinder has a special name, called self-locking hydraulic cylinder.

By what means can the hydraulic system control the arbitrary stroke position of the rotary cylinder piston rod?
The following ways can be considered: 1, through the limit device, such as limit switch, position sensor, etc. 2, by feedback the pressure of the hydraulic oil in the cylinder. The load determines the pressure, the pressure in the cylinder is determined by the load, and the pressure is very small when the cylinder is unloaded. 2.1 When clamping the workpiece, the pressure of the cylinder increases, by calculating the relationship between the clamping force and the pressure of the cylinder, take a pressure value of the cylinder, set the pressure switch, and drive the valve to work when the pressure reaches the preset value, so that the oil circuit stops supplying oil. 2.2 or set the pressure value of the relief valve to overflow after a certain set pressure.