This article mainly introduces:

Sudan hydraulic cylinder,tension cylinder manufacturer,tension cylinder

(Sudan tension cylinder,produced by Hengyu Group）

tension cylinder are widely used in Sudan，because of long service life，clever hydraulic energy conversion，no transmission clearance.So our company has designed tension cylinder for customers from Sudan.

Introduction to tension cylinder:

The oil tension cylinder is a part of the hydraulic system, in the hydraulic system, to reasonably design the heat dissipation system, to prevent the oil temperature is too high is the key to keep the hydraulic oil temperature normal. The temperature of the system should be kept in a suitable range to reduce the energy released when the bubble bursts. While not affecting the normal circulation of the coolant, a certain amount of anti-corrosion additives can be appropriately added to inhibit rust. When operating the hydraulic system, we should strive to be stable, not too fast, too strong, and try to reduce the impact of hydraulic oil on hydraulic components.

tension cylinder piston rod material selection and technical requirements: (I), because there is no special requirements, so use 45 steel as the piston rod material, the design of the piston rod only withstand pressure stress, so no modulation processing; (ii) The coaxial tolerance of the shaft journal and the outer circle of the mounting piston is not greater than 0.01mm, so as to ensure the coaxial degree of the outer circle of the piston rod and the outer circle of the piston, and avoid the stuck phenomenon of the piston and the tension cylinder, the piston rod and the guide. The vertical tolerance between the end face of the mounting piston and the axis of the piston rod is not more than 0.04mm/100mm to ensure that the piston installation does not produce skew; (iii) The outer circle of the piston rod should pay attention to the roughness; (iv) Because it is operated under low load conditions, surface treatment is omitted.

The body of the tension cylinder on the processing process requirements: the body of the tension cylinder is an important and essential part of the tension cylinder, because it has an irreplaceable role. The processing requirements for this part are very high, requiring that the surface roughness of the tension cylinder after processing should reach 0.4-0.8um, and the coaxiality and wear resistance requirements are also very high.

The tension cylinder is mainly composed of body, piston, piston rod, tension cylinder head, tension cylinder bottom, piston rod head and related auxiliary devices. The piston divides the tension cylinder into two chambers, and moves reciprocally in the tension cylinder with the help of pressure oil. In order to improve its working effect, there is no sealing ring on the piston to eliminate internal leakage, where the piston rod passes through the tension cylinder head, due to the existence of the gap, it is easy to produce external leakage phenomenon, and the dust can enter the tension cylinder through the gap, so the sealing device and dust prevention reason are set. At the same time, in order to eliminate the influence of eccentric load on the work of the piston, all the tension cylinders must be provided with a considerable length of guide sleeve at the extended end of the piston rod. In addition, in the case of faster piston movement, the phenomenon of mechanical collision between the piston and the tension cylinder bottom and the tension cylinder head is serious, so the buffer deceleration should be set at both ends of the tension cylinder The working medium of the tension cylinder: because it works at room temperature, the ordinary oil-type hydraulic oil can be selected; tension cylinder sealing device: The use of Yx sealing ring, polyurethane (PU) and polytetrafluoroethylene (PTFE) materials combined to achieve a good sealing effect; Buffer mechanism of the tension cylinder: The buffer structure of the tension cylinder is to prevent the piston from colliding with the tension cylinder head at the end of the stroke.

Answers to some questions about tension cylinder:

PLC+ inverter + motor + pump + solenoid valve + cylinder combination, can control the accuracy of cylinder position?
In the case of extremely high accuracy requirements, you can not, please consider a few problems: 1, hydraulic oil can be compressed, it is elastic like a spring. Therefore, in the general hydraulic servo system, the valve control is far more accurate than the pump control. Because the valve can be installed very close to the hydraulic cylinder, or even installed on the hydraulic cylinder, but the pump must go through the tubing and then into the hydraulic cylinder, there is a long distance, which greatly reduces the rigidity of the system and increases the difficulty of control. 2, the quantitative pump is first of all leaking, and there is 10%-20% flow pulsation. Secondly, and more unfortunately, the leakage of the pump is related to the pressure and is non-linear.

A hydraulic system functions three cylinders to maintain pressure, what components need to be used?
Two way cartridge valve can be selected for control. Two way cartridge valve advantages: 1) flow capacity is large, especially suitable for large flow occasions. 2) The spool has sensitive action and strong anti-clogging ability. 3) Good sealing, small leakage, oil flow through the valve pressure loss is small. 4) Simple structure, easy to standardize.