This article mainly introduces:

Bolivia hydraulic cylinder,unidirectional cylinder manufacturer,unidirectional cylinder

(Bolivia unidirectional cylinder,produced by Hengyu Group）

unidirectional cylinder are widely used in Bolivia，because of no transmission clearance，powerful torque，clever hydraulic energy conversion.So our company has designed unidirectional cylinder for customers from Bolivia.

Introduction to unidirectional cylinder:

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

If the unidirectional 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 unidirectional cylinder is slow. In the case of low temperature, the hydraulic oil viscosity is large, poor flow, resulting in slow unidirectional cylinder action. The improvement method is to replace the hydraulic oil with better viscosity and temperature performance If the unidirectional cylinder is weak and cannot push the load, please check the internal leakage problem. The internal leakage of the unidirectional cylinder includes the leakage caused by excessive wear of the unidirectional 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 unidirectional cylinder, and the phenomenon of "pulling the unidirectional cylinder" appears. The treatment method is to adjust the speed control valve, and the necessary operations should be done according to the installation instructions.

When the unidirectional cylinder needs to be stored for a period of time, please follow the recommended methods: The unidirectional cylinder should be stored in a dry, clean, non-corrosive gas indoor environment, pay attention to protect the unidirectional cylinder from internal corrosion and external damage. If the indoor requirements cannot be met, the hardened and well-drained ground should be cushioned at least 30cm, and the upper part should be covered with waterproof storage. The oil unidirectional cylinder should not be in direct contact with water vapor for a long time. The unidirectional cylinder should be placed as vertically as possible with the piston rod facing up, which minimizes corrosion due to possible condensation in the unidirectional cylinder and permanent deformation of the seal due to the piston and rod weight. (When the shield is stored in the shield machine, the support shoe is placed upward). Keep the oil port protective cover until the pipe is connected. For long-term storage, the protection should be added on both sides of the piston of the unidirectional cylinder Before working, the unidirectional cylinder must be run repeatedly with low pressure (greater than the starting pressure) to discharge the air in the unidirectional cylinder before normal work. The oil inlet and outlet and the joint must be tightly fastened with a combination pad to prevent oil leakage.

The unidirectional cylinder should be avoided for a long time without use, if it is indeed idle for a long time for some reason, it should also be regularly turned on for empty operation, so that its parts can be fully lubricated, so as to avoid rust on the working surface and affect the normal work in the future. (If it cannot be turned on and run, a small amount of lubricating oil can be applied on its outer surface for protection) ' The use of the unidirectional cylinder should pay attention to: the operation should be as far away from the unidirectional cylinder as possible, to avoid falling objects, knocking, rubbing the unidirectional cylinder coating. When cleaning the unidirectional cylinder, only use soft materials (such as cotton) to wipe, and do not scratch high-hardness materials. Do not use the unidirectional cylinder when the oil temperature exceeds 70 ° C.

Answers to some questions about unidirectional cylinder:

Design a hydraulic cylinder, the inner diameter of the cylinder is 100mm, what size of piston rod is best used?
This involves how much speed ratio you need, that is, the area ratio of the rod cavity and the rodless cavity, if the weight is relatively large, it is recommended that the speed ratio choose 2, that is, the piston rod diameter choose 70mm, under normal circumstances, the speed ratio choose 1.46, the piston rod diameter choose 55mm. Of course, there are many factors that affect the diameter of the piston rod, such as stroke, stroke is too long, in order to stabilize the work of the hydraulic cylinder, its diameter also needs to choose a relatively large, sometimes even non-standard products, need to choose according to the actual situation.

What is the meaning of cylinder HSGK01-100/70E-4111-1320?
hsg Double acting single piston rod hydraulic cylinder and front end cover are connected by internal clamp key 01 Design serial number 100 cylinder inner diameter 70 piston rod outer diameter e Pressure class code 16mpa4111 Front flange, rod end external thread, both ends with buffer, oil port connection is internal thread 1320 stroke.