High-pressure gear pump and hydraulic motor works

In the hydraulic system, high-pressure gear pumps and hydraulic motors are energy conversion devices. It uses high-strength aluminum alloy shell, high bearing capacity DU bearing and floating side panels and other structures, with high pressure, wide speed range, simple structure, light weight, reliable, long service life and so on. The high-pressure gear pump converts the mechanical energy input by the prime mover into the hydraulic energy of the fluid oil. It belongs to the hydraulic energy element, also known as the power element; on the contrary, the hydraulic motor converts the input hydraulic energy into mechanical energy in the form of rotation Is used to drag the load for work, belong to the implementation of components. Hydraulic system used in high-pressure gear pumps and hydraulic motors are sealed by changes in the volume of work space to work, so called high-pressure displacement pumps and hydraulic motors. High-pressure gear pump is characterized by: (1) must have one or more sealed volume space (working chamber), in the course of the work chamber volume must continue to grow from small to large, and then become smaller for oil absorption and Drain. The pump oil volume is sealed by the number of working chambers, the size of the volume change and the number of changes per minute decision, so called the volume pump. Volume pump works (2) in the oil absorption process, the tank must be connected with the atmosphere, or the use of pressure tank so that the oil surface to maintain a certain pressure on a regular basis, which is a necessary condition for oil absorption I in the discharge process, hydraulic Determined by the oil from the check valve 7 expelled resistance encountered, that is, the pump pressure depends on the external load, which is the formation of oil pressure conditions. Without the load can not form the oil pressure. (3) One-way valve is to ensure the oil chamber and tank connected to the suction, while cutting off the oil drain pipe; oil discharge when the oil chamber and the oil pipeline connected to cut off the tank. The oil distribution device, although in many forms, is essential for a variety of pumps. The working principle of the hydraulic motor happens to be the opposite of that of the hydraulic pump. If pressure oil is fed into the oil chamber, the plunger will be pushed down to force the eccentric wheel to rotate through an angle. If the eccentric wheel is continuously rotated, it can continuously output Speed ​​and torque. This shows that, in principle, the hydraulic pump and the hydraulic motor are reversible, that is, any one type of hydraulic pump can be used as a hydraulic motor, and vice versa. However, not all positive displacement pumps can be used as motors due to some different requirements on the actual structure. Hydraulic pump and hydraulic motor in many forms, according to their output (input) the volume of oil can be adjusted into quantitative pump (motor) and variable pump (motor) two categories. According to their different structure can be divided into gear, vane and plunger three categories. There are different types of each type, such as; gear pump has an external meshing and internal meshing; vane pump has a single-acting and double-acting points; plunger pump radial and axial-grading Wait. Gear hydraulic pumps and hydraulic motors are generally quantitative pumps and quantitative motors; vane, plunger hydraulic pumps and motors have quantitative and variable type. According to the different mechanical properties, hydraulic motor can be divided into high-speed, low torque and low speed, high torque two types. Above to share with you the working principle of high pressure gear pump and hydraulic motor, the industry more understanding of some of this knowledge is beneficial and harmless, I believe the future will certainly benefit from, if in the future encounter this problem will have The way to deal with. Industry leaders Guangzhou IFAT China Water Show article belongs to the building industry interconnect (Xiamen) Co., Ltd. All are welcome to reprint, please indicate the source and author of: Asian pumps Network Editor: gogoing (QQ / micro-channel:) starting : Http://beng.liuti.cn/ (Service Hotline:)