Now, more and more production and life use hydraulic cylinder equipment. There will be many problems of varying degrees in the use of hydraulic cylinders, which will seriously affect the production efficiency. The hydraulic oil cylinder used in the mine is prone to internal leakage and external leakage due to its large cylinder diameter and its operation under high pressure and low speed conditions. The axial pressure and radial shear force act on the landing cylinder to make it vertically placed. During coal mining at the primary working face, nearly one-third of the bolts were cut off, the tray fell off, the piston rod was in direct contact with the push rod, and the head of the piston rod was deformed due to the extrusion of the push rod. If the push rod was not replaced in time, the push rod would be scrapped. When moving the rack, the shear force of the bolt is far less than the push pull force. The friction shear force between the tray and the push pull rack causes the bolt to be cut off, the tray to be lost, the piston rod head to be seriously damaged, and the bottom cylinder to be scrapped.

Hydraulic oil cylinder is mainly used for long-term support of heavy objects. It can still support heavy objects when removing oil pressure, and is safe and reliable. It is suitable for underwater, single action, load contraction, self-locking of nuts, etc., to make the load more safe, especially in large projects, easy to operate and control. It is equipped with a safety pressure maintaining device and a built-in pressure relief valve to prevent overload, protect the self-locking jack, and facilitate safe operation. The input of the hydraulic cylinder is the flow and pressure of the fluid, and the output is the speed and force of linear motion. The hydraulic cylinder piston can complete linear reciprocating motion, and its output linear displacement is also limited. Hydraulic cylinder is a mechanical energy conversion device that converts hydraulic energy into reciprocating linear motion. Hydraulic motor of agricultural machinery The hydraulic cylinder body is mainly composed of cylinder head, piston, piston rod and sealing device.

As the key component of hydraulic system, the development process of hydraulic cylinder is basically consistent with that of hydraulic industry. Hydraulic motor In the early stage of development, Hydraulic motor manufacturer Domestic oil cylinder manufacturers are generally backward in technology, poor in product quality, short in service life, poor in sealing, easy to leak, and weak in research and development ability. Through years of technical breakthrough and accumulation, the production and processing equipment and processing technology of a few domestic independent brand enterprises have reached the international advanced level, which has taken a solid step for the localization of high-pressure oil cylinders. With the rapid development of China's economy, the construction of infrastructure and basic industry has continued to grow steadily. In addition to factors such as the country's stimulating domestic demand and increasing infrastructure investment, the equipment manufacturing industry has shown a rapid growth trend in the national economy. As a result, the market demand for the oil cylinder, a core component of large machinery, is also growing rapidly.

The characteristics of the new hydraulic cylinder are that the oil unloading device has a simple structure, only one oil unloading hole, no other parts, it is not easy to fail, and it works reliably; The oil unloading section is relatively concentrated, and the hydraulic oil is a little viscous, which is not easy to block, so that the piston and oil cylinder can work normally; The working mode is superior, and the purpose of closing or opening the oil discharge hole is achieved by making use of the movement of the piston itself. It is very important to determine the location of the oil unloading hole. Improper setting will cause the hydraulic oil tank vent to spray oil outward, the lifting height of the farm tool lifting device is insufficient, and the hydraulic cylinder and hydraulic device are damaged. With the development of modern industry, hydraulic cylinder transmission technology has been greatly applied and developed in many industries around the world. It has been widely popularized, and its application fields and occasions are expanding day by day. New requirements have been put forward for the working performance, structure, application range, manufacturing accuracy, appearance, materials, testing methods, etc. of hydraulic cylinders, And constantly promote the development and progress of hydraulic cylinders.