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Jiangsu Fangyang Mechanical &Electrical Equipment Co., Ltd: Hydraulic Hoist-Hydraulic System

Release time：2019-02-28 10:50:59 Click rate：1609

Hydraulic hoist is generally composed of hydraulic system and hydraulic cylinder. Under the control of hydraulic system, the inner wall of piston in the hydraulic cylinder moves axially to and fro, thus driving the connecting rod and gate connected to the piston to move in a straight line, so as to open and close the orifice. Hydraulic system includes power device, control and adjustment device, auxiliary device and so on. Multiple hoists can share a hydraulic system. A. Power devices are generally hydraulic pumps, which convert mechanical energy into hydraulic energy. Hydraulic pumps generally use volumetric pumps, such as vane pumps and plunger pumps. Vane pumps and plunger pumps have the advantages of compact structure, smooth operation, low noise and long service life. Although plunger pumps are expensive, they can obtain high pressure, large flow rate and adjustable flow rate. B. Control and regulation device refers to the hydraulic control valve group, including throttle valve, reversing valve, relief valve and other valve groups. Its function is to control and regulate the flow, direction and pressure of hydraulic oil respectively, so as to achieve various performance requirements of the hydraulic system. The hydraulic control valves on the hoist are mostly standard components, and generally adopt cartridge technology. The cartridge valves have the advantages of strong combination function, high integration, low noise, good sealing, compact mechanism and global maintenance. By choosing different structure and form of pilot control valves, control caps and assemblies and cartridge assemblies, cartridge valves with the functions of reversal, pressure regulation and speed regulation can be obtained. The hydraulic hoist with double lifting points can not adopt mechanical synchronization as hoist hoist, so synchronization measures should be considered for control valve group. C. Auxiliary devices include oil tanks, tubing, pipe fittings, pressure gauges, oil filters, etc. The purpose of oil tanks is to store oil and heat, to precipitate impurities in oil, to separate air and water in oil, etc. Oil pipes and pipe fittings connect power devices, control devices and hydraulic cylinders to form a complete hydraulic circuit. Impurities in hydraulic oil will cause wear and tear of moving parts, increase leakage and reduce elements. The service life of the parts, even the blockage of the valve set, affects the use of the hydraulic system. It is necessary to set up a filter to filter the hydraulic oil.

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Jiang su Fang Yang Mechanical Electrical Equipment Co., Ltd.
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