Release time：2023-11-12 15:27:39 Hits： Current position: Home > News
This article mainly introduces:
Costa Rica hydraulic cylinder,hydraulic support cylinder manufacturer,hydraulic support cylinder
(Costa Rica hydraulic support cylinder,produced by Hebei Hengyu company）
hydraulic support cylinder are widely used in Costa Rica，because of no transmission clearance，powerful torque，clever hydraulic energy conversion.So our company has designed hydraulic support cylinder for customers from Costa Rica.
Causes and countermeasures of oil hydraulic support cylinder leakage: Cast iron ring seal allows a certain degree of internal leakage. The impurities in the hydraulic support cylinder will lead to premature wear of the piston seal, replace the piston seal; If the hydraulic support cylinder is visibly scarred, the hydraulic support cylinder must be replaced. It can be pressurized at one end of the hydraulic support cylinder and opened at the other end of the oil port to observe whether there is obvious internal leakage at the end of the oil port. Most hydraulic support cylinder piston drift may not come from the hydraulic support cylinder, the above method to determine the hydraulic support cylinder without internal leakage is helpful to determine the problem of the hydraulic system related components.
If the piston rod and hydraulic support cylinder are stuck or the hydraulic support cylinder is blocked, at this time, no matter how to operate, the hydraulic support cylinder does not move or has little action. At this time, check whether the piston and piston rod seal is too tight, whether it enters the dirt and gum deposits: whether the shaft line of the piston rod and the hydraulic support cylinder is in the center, whether the wearing parts and seals are invalid, and whether the load is too large.
Because of the slightly complex structure of the buffer hydraulic support cylinder, sometimes there will be problems, such as when the hydraulic support cylinder with the buffer device is started in reverse, the piston often stops temporarily or reverses. Elimination method: The orifice of the check valve is too small, so that the amount of oil entering the buffer chamber is too small, and even a vacuum occurs, so the above fault phenomenon will occur when the buffer plunger leaves the end cover. In this regard, the orifice of the check valve should be increased.
hydraulic support cylinder piston rod material selection and requirements: ① piston rod is usually made of 45 steel. When there is a large impact force and heavy load transmission, it is made of 40Cr steel. This is to ensure that the piston rod has sufficient working strength. The piston rod is generally designed as a hydraulic support cylinder, if the diameter is larger, the hollow piston rod can be used. Made of No. 45 seamless steel pipe. ③ When the piston rod is manufactured, the blank should be first forged and conditioned after mechanical rough processing, and the hardness of HB=230 ~ 250. The purpose of conditioning is to improve the machining performance and increase the working strength of the material. ④ The surface roughness Ra of the piston rod after finishing should not be greater than 0.65μm. ⑤ In order to improve the corrosion resistance of the piston rod, the working surface of the rod can be plated with hard chromium. ⑥ The piston rod and the end cap are guided by H8 ' hydraulic support cylinder piston rod industry standard: piston rod diameter series of national recommended standard GB/T2348-1993. Piston rod thread size series standard GB/T2350-1980. Please refer to execute. There is no industry standard for piston rods Both the hydraulic support cylinder and the hydraulic motor are devices that convert the pressure energy of the liquid into mechanical energy and output it. The hydraulic support cylinder mainly outputs linear motion and force. The hydraulic support cylinder has a variety of forms, according to the different characteristics of its mechanism it can be divided into piston type, plunger type and swing type three categories, according to the mode of action he can be divided into single action and double action. Piston hydraulic support cylinder, plunger hydraulic support cylinder is mainly used for: machinery, such as excavators; Scientific research, such as university structure laboratory. The plunger hydraulic support cylinder is used for pressure testing machines, such as Jinan test, and the test machine is used for material testing.
About the hydraulic cylinder wall thickness problem?
Hydraulic cylinder wall thickness calculation formula: t=PD/200St= pipe wall thickness (minimum thickness) mmP= maximum pressure kg/cm2? d= inner diameter mm? S=δ/5 safety factor δ= minimum tensile strength This case: set the cylinder material 45#, tensile strength 58kg/cm2t=(640X40)/(200X11.6)t=11mm piston output (i.e. Thrust) calculation formula: F1=PD2X(3.14/4)F1=640X42X0.785=8,038kg Note: Square numbers will not be used, all 2's in the text are square codes.
What steel pipe does hydraulic cylinder use? This problem is very general. Carbon steel pipe or ordinary seamless steel pipe are all ok, but then there are rolling, quilting, heat treatment and other steps, and the requirements are different, the wall thickness is different, the material is different. It depends on the circumstances.
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