Elevator hydraulic system yes Hydraulic system Is a device that converts electrical or mechanical energy into hydraulic energy. Therefore, once the hydraulic pump fails, it will immediately affect the normal work of the hydraulic system, or even fail to work. Common hydraulic pumps include gear pump, vane pump, plunger pump, etc. The failure of these pumps is caused by the quality of structural design and manufacturing, as well as problems in use and maintenance. The causes of failure are various. In addition, from the basic principle, the hydraulic pump and are reversible, and the working principle and basic mechanism are the same. Taking the hydraulic gear pump as an example, this paper discusses the faults caused by the pump itself and its repair methods.
The oil pipe is not installed well. The hose cannot be twisted during installation. The twisted hose will break over time and the joint will leak oil. Oil pipe burst. The reason is often that the rubber pipe without steel wire braid is used as the rubber pipe with steel wire braid. Only one layer of wire is used to purchase the hose with poor quality where three layers of steel wire braid are required to be competent. The rubber hose that meets the specification requirements must be selected correctly as required.
The elevator hydraulic system is applicable to the closed loop hydrostatic transmission system. The pump is a variable displacement pump with makeup oil pump. The variable displacement control mode includes manual (MDC) hydraulic (HDC) and electric (EDC) control, which can effectively control the flow direction and power of output oil. Elevator hydraulic pump station The output flow of is proportional to the spindle speed and displacement. And it can be regulated from to. Agricultural machinery hydraulic pump describes concrete mixer, coal mine machinery transport vehicle, industrial roller, paver, stabilized soil mixer, concrete pump, pharmaceutical machinery, etc.
Bimetal floating side plate, the compensation surface is sealed with a special structure, which can automatically compensate the axial clearance. The utility model has the advantages of high pressure, high volume efficiency, low noise, light weight, reliable use, etc.
