This article mainly introduces:

Spain hydraulic cylinder,hydraulic shear cylinder manufacturer,hydraulic shear cylinder

(Spain hydraulic shear cylinder,produced by Hengyu Group）

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

Introduction to hydraulic shear cylinder:

The coordination of the sliding parts of the hydraulic shear 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.

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

We can not just consider the price and ignore the quality when we purchase the hydraulic shear cylinders. Now some manufacturers produce unqualified products in order to reduce costs, the piston rod is not adjusted, the rod coating is not enough, the hydraulic shear cylinder finish can not reach, the guide sleeve should use copper, but instead of ductile iron, although the cost is reduced, the quality of the hydraulic shear cylinder is not required.

hydraulic shear cylinder and hydraulic station selection: Select the type and structure of the hydraulic shear cylinder according to the operation requirements of the main engine. According to the external load force borne by the hydraulic shear cylinder, such as gravity, friction force of the external mechanism, inertia force and working load, determine the load change law of the hydraulic shear cylinder in each stage of the stroke and the power value that must be provided. Determine the diameter of the piston and piston rod according to the working load of the hydraulic shear cylinder and the selected oil working pressure. the flow rate of the hydraulic pump is determined according to the movement speed of the hydraulic shear cylinder, the diameter of the piston and the piston rod.

Answers to some questions about hydraulic shear cylinder:

What factors does the movement speed of the cylinder in the hydraulic system depend on?
The hydraulic system should be the piston movement in the cylinder, and the speed should also be the speed of the piston, according to the piston speed formula: v=4qm/pai*(D^2-d^2) where q is the flow rate of the input hydraulic cylinder, m is the volumetric efficiency of the hydraulic cylinder, D, d is the diameter of the piston and piston rod, because other factors are determined, the movement speed of the cylinder depends on the flow rate.

What is the rated pressure of the general cylinder?
This depends on the model of the cylinder, 1. The rated pressure of the light tie rod cylinder is 7 series 7MPa and 14 series 14MPa. 2. Rated pressure of engineering cylinder 16MPa. 3. Rexroth type metallurgical cylinder rated pressure 250MPa.