What are the characteristics of a piston hydraulic cylinder? How many kinds are there? What are they used for?If anyone knows, just say something
The hydraulic cylinder from the structure can be divided into the piston cylinder, piston cylinder and oscillating cylinder. The cylinder from the structure can be divided into the piston cylinder, pneumatic cylinder, telescopic cylinder hydraulic cylinder. The working principle is: as its principle I must first say 5 basic components, 1- and cylinder 2- cylinder piston and piston rod sealing device of 3- 4- buffer 5- exhaust device to work each cylinder is almost similar to the original, I took a manual jack is its original work, Jack is a simple cylinder. By manually pressurized straw (hydraulic manual pump) of the hydraulic the oil through a single valve into the cylinder, the hydraulic oil into the cylinder because the reasons for individual valve can not be returned back, forcing the cylinder rod upward, then work to continue to keep the hydraulic oil into the hydraulic cylinder continuously, thus increasing, hit when to drop Hydraulic valve, hydraulic oil back to tank. This is the most simple of the original work, others have improved on this basis, because of the time I would say the most simple principle. The advantages and disadvantages of the cylinder cylinder cylinder and the cylinder with almost I said the following 3 bit 1-- as the pneumatic system pressure is generally in the range of 0.2-1.0Mpa, so the cylinder is not bigger.
The power of dynamic components of hydraulic cylinder can be relatively large power components, the use of hydraulic system, the 2-- from the medium air is inexhaustible, no cost and supply difficulties, the gas used directly into the atmosphere, convenient. The hydraulic oil in the air, 3-- small viscosity, resistance is less than 4-- but the compression rate of air hydraulic oil is far greater than the hydraulic oil so it work smoothly and in order to better response sent greater output Torque, it is necessary to use the volume. Compared to swing vane motor. Many gear rack swing hydraulic cylinder. The torque is generated and transmitted by a driving gear is provided with a rack piston shaft lateral position achieved. According to the design, roller bearings, hydraulic balance or prop up the shear counterproductive gear tooth and the piston. The principle of swinging cylinder reciprocating movement of the hydraulic cylinder is driven by gear rack, the gear shaft is converted into reverse swing rotation, while the reciprocating cylinder thrust into the output torque of the gear shaft. The gear shaft is proportional to the swing angle and the length of the rack, so the gear shaft swing the angle can be arbitrarily selected, and greater than 360 degrees.
