Marine Hydraulic Cylinder
Marine Hydraulic cylinder is the hydraulic energy into mechanical energy, do linear reciprocating motion (or swing motion) of the hydraulic actuator. It has a simple structure and reliable operation. When it is used to achieve reciprocating movement, the deceleration device can be removed, and there is no transmission gap, and the movement is stable. 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. Buffering device and exhaust device depending on the specific application, other devices are necessary.
Classification of Marine Hydraulic Cylinder
Marine hydraulic cylinder structure of a variety of forms, the classification method is also a variety of: according to the way of movement can be divided into linear reciprocating movement and swing;
According to the liquid pressure can be divided into single-acting type, double-acting type;
According to the structure can be divided into piston type, plunger type, multistage telescopic sleeve type, rack and pinion type;
According to the installation form can be divided into rod, earring, foot, hinge shaft, etc.;
According to the pressure, the grade can be divided into 16Mpa, 25Mpa, 31.5mpa, etc.
Cushion Device for Marine Hydraulic Cylinder
In the hydraulic system, the hydraulic cylinder is used to drive the mechanism with a certain quality. When the hydraulic cylinder moves to the end of the stroke, there is large kinetic energy. If there is no deceleration, the hydraulic cylinder piston and the cylinder head will have mechanical collision, resulting in impact, noise and destruction.
In order to alleviate and prevent the occurrence of this harm, so can be set in the hydraulic circuit reducer or buffer device in the cylinder body.
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