The hydraulic cylinder converts hydraulic energy into mechanical energy for Manufacturer of cycloidal hydraulic motor Hydraulic actuator with linear reciprocating motion (or swing). The utility model has simple structure and reliable operation. It is widely used in various mechanical hydraulic systems because it is used to realize reciprocating motion without transmission clearance, speed reducer and smooth motion. The output force of the hydraulic cylinder is proportional to the effective area of the piston and the pressure difference on both sides; The hydraulic cylinder is basically composed of cylinder barrel and cylinder head, piston and piston rod, sealing device, buffer device and exhaust device. The installation of buffer and vent depends on the specific application, and other devices are indispensable.

According to the common structural forms of hydraulic cylinders, they can be divided into four categories:

Piston engines.

There is only one piston rod at one end of the single rod hydraulic cylinder. This product is a single piston hydraulic cylinder. Swing hydraulic motor At both ends of ports A and B, ports A and B can realize two-way movement through pressure oil or return oil, so they are called double acting cylinders.

The second is piston type.

(1) The plunger type hydraulic cylinder is a single acting hydraulic cylinder. Only hydraulic pressure can realize movement in one direction. The return stroke of the plunger depends on other external forces or the weight of the plunger;

(2) The plunger is only supported by the cylinder liner and does not contact the cylinder liner, making the cylinder liner easy to process and suitable for making long stroke hydraulic cylinder;

(3) The plunger is always under pressure during operation, so the plunger must have sufficient rigidity;

(4) The weight of the plunger is often large, Hydraulic drive motor When placed horizontally, it is easy to sag due to its own weight, resulting in unilateral wear of seals and guide rails. Therefore, it is more advantageous to place vertically.

The third is the retractable type.

The hydraulic cylinder has two or more pistons. The piston in the hydraulic cylinder extends from large to small, and from small to large without load. Hydraulic motor manufacturer Prolonging the cylinder can achieve a longer stroke, while shortening the time will make the structure more compact. This kind of hydraulic cylinder is often used in construction machinery and agricultural machinery.

The fourth is swinging.

Pendulum hydraulic cylinder is an executive element that outputs torque and realizes reciprocating movement, also known as pendulum hydraulic motor. It is composed of single leaf and double leaf. The stator block is fixed in the cylinder block, and the blades and rotors are connected with each other. The impeller will drive the rotor to reciprocate according to the oil inlet direction.