This article mainly introduces:

Ghana hydraulic cylinder,retractable cylinder manufacturer,retractable cylinder

(Ghana retractable cylinder,produced by Hengyu Hydraulic Co., Ltd）

retractable cylinder are widely used in Ghana，because of no need for deceleration device，long service life，smooth movement.So our company has designed retractable cylinder for customers from Ghana.

Introduction to retractable cylinder:

The coordination of the sliding parts of the retractable cylinder itself should not be too tight, the sealing friction force should not be too large, and H8 / f8 coordination should be selected between the piston rod and the guide sleeve; Check whether the size of the sealing ring is processed strictly according to the standard; If the V-shaped sealing ring is used, the sealing friction should be adjusted to a moderate degree.

In the hydraulic system, sometimes the inner layer of the rubber hose is peeled off, so that the oil circuit is on and off, resulting in irregular retractable cylinder action. Troubleshooting method: Replace the rubber hose.

If the retractable cylinder operation failure, you can start from these aspects to troubleshoot: (1) the hydraulic system control pressure is too low. The throttling resistance in the control line may be too large, the flow valve is improperly adjusted, the control pressure is inappropriate, and the pressure source is disturbed. At this time, the control pressure source should be checked to ensure that the pressure is adjusted to the specified value of the system; (2) Air enters the hydraulic system. Mainly because there is a leak in the system. At this time, check the liquid level of the hydraulic tank, the seals and fittings on the oil suction side of the hydraulic pump, and whether the oil suction filter is too dirty. If so, the hydraulic oil should be replenished, seals and fittings should be treated, and the coarse filter element should be cleaned or replaced. (3) The initial action of the retractable cylinder is slow. In the case of low temperature, the hydraulic oil viscosity is large, poor flow, resulting in slow retractable cylinder action. The improvement method is to replace the hydraulic oil with better viscosity and temperature performance If the retractable cylinder is weak and cannot push the load, please check the internal leakage problem. The internal leakage of the retractable cylinder includes the leakage caused by excessive wear of the retractable cylinder block seal, the piston rod and the seal cover seal and the piston seal. The cause of sealing leakage between the piston rod and the seal cover is that the seal is wrinkled, squeezed, torn, worn, aging, deterioration, deformation, etc., and a new seal should be replaced at this time. The main cause of excessive piston seal wear is improper adjustment of the speed control valve, resulting in excessive back pressure and improper seal installation or hydraulic oil contamination. The second is that foreign bodies enter the assembly and the quality of sealing materials is not good. The result is that the action is slow and weak, and in serious cases, it will cause damage to the piston and retractable cylinder, and the phenomenon of "pulling the retractable cylinder" appears. The treatment method is to adjust the speed control valve, and the necessary operations should be done according to the installation instructions.

If it is found that the retractable cylinder lubrication is poor or the retractable cylinder bore processing is abnormal, it is necessary to feedback the situation to the manufacturer, because the piston and the retractable cylinder, the guide rail and the piston rod have relative movement, if the lubrication is poor or the retractable cylinder bore is abnormal, it will aggravate the wear and reduce the straightness of the retractable cylinder center line. In this way, when the piston works in the retractable cylinder, the friction resistance will be large and small, resulting in slip or crawling. The solution is to repair and grind the retractable cylinder first, and then prepare the piston according to the matching requirements, repair and grind the piston rod, and configure the guide sleeve.

Answers to some questions about retractable cylinder:

Why can't the hydraulic cylinder be replaced with water?
Hydraulic oil for hydraulic transmission has a variety of requirements for viscosity, density, flow rate, and temperature, which are not available for water.

What is the principle of electric cylinder?
Principle: The electric cylinder converts the rotating motion of the motor into the linear motion of the push rod through the mechanical movement of the lead screw and the lead screw pair. With the closed-loop control characteristic of servo motor, the precise control of thrust, speed and position can be realized easily. Using modern motion control technology, numerical control technology and bus (network) technology, the program and bus (network) control is realized. Because of its easy control and use, it will realize the precision motion control that the cylinder and hydraulic cylinder drive can not achieve. Electric cylinder application field: 1, coordinate manipulator: logistics transmission, automated production line. 2. Wave making machine. 3, parallel mechanism: experimental platform, simulation platform, antenna. 4. Parallel machine tools. 5. Medical equipment: CT, Kamar