This article mainly introduces:

Oman hydraulic cylinder,double discharge cylinder manufacturer,double discharge cylinder

(Oman double discharge cylinder,produced by Hengyu Hydraulic Co., Ltd）

double discharge cylinder are widely used in Oman，because of excellent fatigue and impact resistance，no need for deceleration device，long service life.So our company has designed double discharge cylinder for customers from Oman.

Introduction to double discharge cylinder:

The double discharge cylinder is mainly composed of body, piston, piston rod, double discharge cylinder head, double discharge cylinder bottom, piston rod head and related auxiliary devices. The piston divides the double discharge cylinder into two chambers, and moves reciprocally in the double discharge 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 double discharge cylinder head, due to the existence of the gap, it is easy to produce external leakage phenomenon, and the dust can enter the double discharge 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 double discharge 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 double discharge cylinder bottom and the double discharge cylinder head is serious, so the buffer deceleration should be set at both ends of the double discharge cylinder The working medium of the double discharge cylinder: because it works at room temperature, the ordinary oil-type hydraulic oil can be selected; double discharge 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 double discharge cylinder: The buffer structure of the double discharge cylinder is to prevent the piston from colliding with the double discharge cylinder head at the end of the stroke.

double discharge 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 double discharge 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 ' double discharge 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 double discharge cylinder and the hydraulic motor are devices that convert the pressure energy of the liquid into mechanical energy and output it. The double discharge cylinder mainly outputs linear motion and force. The double discharge 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 double discharge cylinder, plunger double discharge cylinder is mainly used for: machinery, such as excavators; Scientific research, such as university structure laboratory. The plunger double discharge cylinder is used for pressure testing machines, such as Jinan test, and the test machine is used for material testing.

The viscosity of the working oil used in the double discharge cylinder is 29~74mm2/S, and ISO VG46 anti-wear hydraulic oil is recommended. Working oil temperature within the range of -20~80. C. When the ambient temperature and service temperature are low, the oil with lower viscosity can be selected.

Piston double discharge cylinder is widely used in hydraulic transmission. When the double discharge cylinder works, it mainly delivers hydraulic oil alternately to both sides of the piston in the double discharge cylinder, and uses the pressure difference of hydraulic oil on both sides of the piston to realize the reciprocating movement of the piston. If you want to speed up the forward speed of the piston, the return oil in the double discharge cylinder can be controlled by the valve and directly input into the inlet pipe to participate in the work of the piston to achieve rapid movement of the piston, but the thrust of the piston is reduced much.

Answers to some questions about double discharge cylinder:

How to calculate the speed of cylinder weight decline?
To reduce the weight of the cylinder, the necessary condition is that the weight of the piston rod + external load is greater than the friction between the seal ring and the cylinder. There are many reasons for this, first of all, consider the reasons of the cylinder itself, the piston in the cylinder and the sealing ring on the piston rod will play a reaction force on the weight of the cylinder (because of friction), which depends on the tightness of the sealing ring and the cylinder. Secondly, what is connected under the piston rod of the cylinder and how much weight there is. And the way the cylinders are arranged, is it completely vertical. Anyway, in fact, the most important thing is to see how much the bore of the oil hole of the piston rod cavity of your cylinder is. For example, if the hole in the lower chamber of the cylinder is small, as thin as a needle, then its descent rate will be slow.

What is the thin cylinder used for?
The principle is no different from ordinary cylinders, that is, the installation space is small, the formation is small, and it is suitable for some special occasions. For example, the space is compact and the place of small travel is used.