Release time：2023-11-10 08:34:57 Hits： Current position: Home > News
This article mainly introduces:
Thailand hydraulic cylinder,extra long cylinder manufacturer,extra long cylinder(Thailand extra long cylinder,produced by Hengyu Hydraulic Co., Ltd）
extra long cylinder are widely used in Thailand，because of no need for deceleration device，long service life，smooth movement.So our company has designed extra long cylinder for customers from Thailand.
How the cavitation of the extra long cylinder is formed: With the gradual rise of pressure, the gas in the oil will become bubbles, when the pressure rises to a certain limit value, these bubbles will break under the action of high pressure, so that the high temperature and high pressure gas will quickly act on the surface of the parts, resulting in cavitation of the extra long cylinder, resulting in corrosive damage to the parts.
The extra long cylinder should not be mixed with foreign objects during assembly, which will cause scars. Before the total assembly of the extra long cylinder, all parts must be fully removed and cleaned. When the parts are installed with burrs or dirt, foreign objects are easily embedded into the surface of the extra long cylinder wall due to the stiffness and the weight of the parts, causing scars.
The extra long cylinder should be vented: when the extra long cylinder is installed or parked for a long time to work again, the air will penetrate into the extra long cylinder and the pipeline system. In order to prevent the abnormal phenomenon of crawling, noise and heating of the actuator, the air in the extra long cylinder and the system should be discharged. In order to facilitate the removal of air deposited in the extra long cylinder, the oil is best entered and discharged from the highest point of the extra long cylinder. extra long cylinders that require higher motion stability are often equipped with exhaust plugs at both ends. Before working, unscrew the exhaust plug to make the piston go back and forth several times without load in the whole stroke, and the air can be discharged through the exhaust plug. After the air is drained, tighten the exhaust plug before working.
If the extra long 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 extra long cylinder is slow. In the case of low temperature, the hydraulic oil viscosity is large, poor flow, resulting in slow extra long cylinder action. The improvement method is to replace the hydraulic oil with better viscosity and temperature performance If the extra long cylinder is weak and cannot push the load, please check the internal leakage problem. The internal leakage of the extra long cylinder includes the leakage caused by excessive wear of the extra long 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 extra long cylinder, and the phenomenon of "pulling the extra long cylinder" appears. The treatment method is to adjust the speed control valve, and the necessary operations should be done according to the installation instructions.
How does the clamping cylinder work?
Hydraulic transmission principle: oil as the working medium, through the change of the sealing volume to transfer movement, through the internal pressure of the oil to transfer power. 1. The power part - converts the mechanical energy of the prime mover into the pressure energy of the oil (hydraulic energy). For example: hydraulic pump. 2, The executive part - the hydraulic pump input oil pressure energy into the mechanical energy to drive the working mechanism. For example: hydraulic cylinder, hydraulic motor. 3, The control part - used to control and adjust the oil pressure, flow and flow direction. For example: pressure control valve, flow control valve and direction control valve. 4, The auxiliary part - the first three parts are connected together to form a system, which plays the role of oil storage, filtration, measurement and sealing.
Is there a way to make the cylinder stop pushing when it hits something hard during the process of pushing?
The simplest solution is to press the stop switch, this switch has a mechanical type, touch the object on the action or send a stop signal, through the operation of the motor control cylinder; There is also an induction switch, that is, when the hydraulic cylinder expands to the range of the induction switch can sense the signal, it sends a signal to let the motor act, resulting in the corresponding action of the cylinder.