The principle that the transmission pressure of the hydraulic cylinder is constant, the larger the force area, the greater the pressure, and the smaller the area, the lower the pressure. The electro-hydraulic jack is an executive element in the hydraulic transmission system. It is an energy conversion device that converts hydraulic energy into mechanical energy. Separate jacks can be used in combination with two or more or other mechanisms in addition to being used individually.
To complete special functions. The hydraulic cylinder is simple in structure and reliable in operation, and has been widely used in the hydraulic system of machine tools. Electric jack is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swing motion). It has simple structure and reliable work. At the same time, there is the task principle of leverage. It has two types jacks from screw jack manufacturers in china.
Jack (Jack0 is a simple lifting equipment with a small lifting height (less than 1m). It has two types: mechanical and hydraulic. Mechanical jacks are also available in rack and screw types because of their small lifting capacity , The operation is laborious, and the hydraulic cylinders are only used for mechanical training tasks, which are not practical in the process of bridge repair. The hydraulic jacks are compact in structure, the task is bumpy and the function of self-locking (self locking) is universal.
The disadvantage is that the lifting height is limited and the lifting speed is slow. Hydraulic jacks are divided into general and special types.
The special hydraulic cylinder can be used as a special tensioning machine to apply tension to the prestressed steel bar (English: steel bar) when manufacturing prestressed concrete components (explanation: mutual traction when objects are under tension). Special hydraulic jacks (Jack0 is mostly double-acting. There are two types of hardly-used jacks: through type and cone anchor type. The screw jack manufacturers in china Have good after-sales service.
Through type jacks are actually used for tensioning steel or wire strands. It is mainly composed of tensioning cylinders, pressing cylinders, Composed of parts such as a pressing piston and a spring (Spring). Its characteristic is that there is a through hole along the axis of the stretching machine, and the steel bar (or steel wire) is penetrated and anchored by a tool at the tail.
Hydraulic cylinders are widely used in engineering machinery in our country. Why are they so widely used? In fact, it is easy to see that the main function of the oil cylinder is to support heavy objects for a long time. Another important reason is that it is safe and reliable, and can also be used for underwater operations, and it can also maintain its greater characteristics and Among them, there is also a kind of engineering cylinder. In large-scale projects, the advantages of this kind of engineering cylinder are more obvious. One of the aspects is that it is easy to operate and control and has a self-locking jack.
It also highlights the characteristics of safe operation, and there is an internal pressure valve to prevent overload conditions (Condition). The electro-hydraulic jack is the executive element in the hydraulic transmission system. It is an energy conversion device that converts hydraulic energy into mechanical energy. When synchronous jacks use it to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap, and the motion is stable, so it is widely used in various mechanical hydraulic systems.