Product Knowledge
Hydraulic Pump
Hydraulic pump is a hydraulic power element, it is the motor (or other prime mover) input mechanical energy into hydraulic energy energy conversion device. Its role is to provide pressure oil to the hydraulic system.
According to the use of pressure is divided into low-pressure pumps, medium-pressure pumps and high-pressure pumps, according to the flow characteristics of the pump can be divided into quantitative pumps and variable pumps. According to its structure can be divided into gear pumps, vane pumps, piston pumps and so on.
1. Gear pumps (external gear pumps and internal gear pumps)
2. Vane pump (single-acting vane pump and double-acting vane pump)
3. Piston pump (axial piston pump and radial piston pump)
Gear pumps due to its simple structure, light weight, easy to manufacture, low cost, reliable, easy maintenance, has been widely used in the pressure is not high in the hydraulic system. In the gear pump more internal leakage, can not realize the variable, bearing load, used in higher working pressure, the structure needs to take some measures.
Vane pumps have the advantages of compact structure, small size, light weight, uniform flow, smooth operation, low noise, but also has a more complex structure, harsh conditions of oil suction, low rated pressure, the realization of the variable difficulties, some limitations on the work of the operation of the oil contamination is more sensitive to the shortcomings.
Piston pumps have the advantages of compact structure, high pressure, high efficiency, flow pressure can be adjusted, long service life, etc., in the engineering machinery, forging machinery, transportation machinery, mining machinery, metallurgical machinery, shipping machinery, aerospace and other fields are more and more widely used.
Axial piston pump
Axial piston pumps work by utilizing the volume change generated by the reciprocating movement of the plunger parallel to the drive shaft in the plunger hole. Because the plunger and the plunger hole are round parts, the processing can achieve a high degree of accuracy with, so has a high volumetric efficiency, smooth operation, good flow uniformity, low noise, working pressure and other advantages, but the more sensitive to the pollution of the hydraulic oil, the structure is more complex, the cost is higher.
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