Release time：2023-11-12 15:28:47 Hits： Current position: Home > News
This article mainly introduces:
Sri Lanka hydraulic cylinder,limit position hydraulic cylinder manufacturer,limit position hydraulic cylinder
(Sri Lanka limit position hydraulic cylinder,produced by Hengyu Hydraulic Co., Ltd）
limit position hydraulic cylinder are widely used in Sri Lanka，because of smooth movement，high work efficiency，excellent fatigue and impact resistance.So our company has designed limit position hydraulic cylinder for customers from Sri Lanka.
In the process of using the limit position hydraulic cylinder, sometimes such a problem will occur, the limit position hydraulic cylinder can not act immediately after the instruction of the limit position hydraulic cylinder action is issued, and it must be moved after a short time, or sometimes it can move and stop moving, showing that the operation is very irregular. The cause and elimination of this failure mainly include air in the oil limit position hydraulic cylinder. Elimination method: exhaust through the exhaust valve. Check the piston rod reciprocating parts of the sealing ring for air inhalation, if so, replace the sealing ring.
In recent years, the processing process of the limit position hydraulic cylinder generally adopts the rolling method, which is a pressure finishing processing, which uses the cold plastic characteristics of the metal at room temperature, and uses the rolling tool to exert a certain pressure on the surface of the workpiece, so that the surface metal of the workpiece produces plastic flow, and fills in the low concave trough of the original residue, and the roughness value of the workpiece surface is reduced. Due to the plastic deformation of the rolled surface metal, the surface tissue is cold hardened and the grain is fine, forming a dense fiber, and forming a residual stress layer, and the hardness and strength are increased, thus improving the wear resistance, corrosion resistance and compatibility of the workpiece surface. Rolling is a plastic machining method without cutting.
The limit position hydraulic cylinder is mainly composed of body, piston, piston rod, limit position hydraulic cylinder head, limit position hydraulic cylinder bottom, piston rod head and related auxiliary devices. The piston divides the limit position hydraulic cylinder into two chambers, and moves reciprocally in the limit position hydraulic 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 limit position hydraulic cylinder head, due to the existence of the gap, it is easy to produce external leakage phenomenon, and the dust can enter the limit position hydraulic 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 limit position hydraulic 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 limit position hydraulic cylinder bottom and the limit position hydraulic cylinder head is serious, so the buffer deceleration should be set at both ends of the limit position hydraulic cylinder The working medium of the limit position hydraulic cylinder: because it works at room temperature, the ordinary oil-type hydraulic oil can be selected; limit position hydraulic 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 limit position hydraulic cylinder: The buffer structure of the limit position hydraulic cylinder is to prevent the piston from colliding with the limit position hydraulic cylinder head at the end of the stroke.
The limit position hydraulic cylinder is not the same as the limit position hydraulic cylinder, because the pressure of the pneumatic system is generally within the range of 0.2-1.0Mpa, the limit position hydraulic cylinder can not be used as a high-power power component, but the limit position hydraulic cylinder can be used as a relatively large power component, or the limit position hydraulic cylinder system can be used.
Why manual forklift oil cylinder can not lift up?
Manual hydraulic forklift truck often can not be pressed up, there are several reasons: for manual hydraulic truck: 1) There is no hydraulic oil 2) the purity of the oil is not enough 3) the adjusting bolt is too close or the adjusting screw is too tight, so that the valve is always open, 4) there is an air in the hydraulic cylinder. Method: 1) Refueling 2) Oil change 3) air discharge. For manual hydraulic stacker, also called manual lift car 1) Less than the amount of oil 2) impurities in the hydraulic oil, so that the check valve can not be closed. Method 1) Add enough hydraulic oil 2) Remove the cylinder, screw off the bottom plate, remove the impurities in the bottom plate.
How do hydraulic equipment and hydraulic cylinders maintain a certain pressure after pressing to a certain position?
There are several methods. 1. You can use a constant pressure variable pump to adjust the control pressure of the pump to the pressure required by the cylinder, so that when the cylinder is in place, the pump uses the minimum flow rate to maintain the pressure, and the system is more energy saving. 2. If the pressure is maintained for a short time, a hydraulic control check valve can be added to the oil inlet end of the cylinder to close the cylinder and maintain the pressure. If the volume of the cylinder is large, an accumulator can be added between the valve and the cylinder to maintain pressure for 10-30 minutes. 3. You can add a small flow pump, the large pump after unloading, the small pump has been running, specifically for maintaining pressure.
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