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Small hydraulic cylinder: With the development of modern industry, hydraulic transmission technology has been greatly applied and developed in many industries around the world, such as loaders, bulldozers and road rollers for construction machinery; forklifts for lifting and transporting machinery, leather belt conveyors and automobiles Cranes, etc.; construction machinery's pile drivers, hydraulic jacks and levelers, etc.; agricultural machinery, automobile industry, mining machinery, metallurgical machinery, hydraulic transmission equipment usually consists of four components such as power, execution, control despotism and auxiliary, like our engineering The cylinders produced by Liang Hydraulic Parts Co., Ltd. belong to the actuators. And the hydraulic cylinder can be used to achieve linear reciprocating motion or less than 360 degrees. The reciprocating pendulum is designed for hydraulic machines with simple structure and reliable work. It is also the main executive element widely used in hydraulic systems. It is the hydraulic pressure energy generated by the prime mover driving the hydraulic pump in the form of mechanical energy. It can directly drive the load for reciprocating motion or less than 360. An energy conversion device for the mechanical energy of the reciprocating pendulum. To understand hydraulic cylinders, we must know the following basic knowledge. Hydraulic cylinders: hydraulic cylinders can be used for lifting, bending, straightening, extrusion, shearing, riveting, jacking, stretching, disassembly, punching, construction steel extrusion, bridges, engineering machinery, etc. Kind of homework. A special tool that can directly perform pressure tests on pressure vessels. Technical principle of small hydraulic cylinder: The principle of a small hydraulic cylinder is basically the same as that of a cylinder. Take a manual jack as an example. The jack is actually the simplest cylinder. The hydraulic oil enters the cylinder through a one-way valve through a manual pressurizing stalk (hydraulic manual pump). At this time, the hydraulic oil entering the cylinder cannot be reversed again because of the one-way valve, and the cylinder rod is forced upwards. Work continues to make the hydraulic oil continue to enter the hydraulic cylinder, so it continues to rise, and when it is going to fall, open the hydraulic valve to return the hydraulic oil to the tank. This is the simplest working principle, and the others are improved on this basis. . With the in-depth popularization of hydraulic technology and the increasing expansion of application fields and occasions, new requirements have been continuously raised for the working performance, structure, use range, manufacturing precision, appearance, materials, and test methods of hydraulic cylinders. The development and progress of hydraulic cylinders. The general trend is: 1, high pressure, miniaturization. High pressure is an effective way to reduce the radial size and weight of the hydraulic cylinder, and to reduce the volume of the entire hydraulic device. 2New material, lightweight. With high pressure, miniaturization, and the test of the environment in which hydraulic cylinders are used, new materials and light weight have become one of the solutions. 3Combination of novel structure. In order to adapt to the expansion of the application range of hydraulic cylinders, various hydraulic cylinders with novel structures have appeared continuously, such as controlled hydraulic cylinders, self-locking hydraulic cylinders, steel cable hydraulic cylinders, peristaltic hydraulic cylinders and composite hydraulic cylinders. 4High performance and multiple varieties. 5 Energy saving and corrosion resistance.