Pressure pump is the driving force of the hydraulic system, its function is to transform the mechanical energy of the prime mover into the working pressure energy of the oil, and provide the corresponding total flow for the operating system. Work stress. Hydraulic pump all capacity type, oil absorption and pressure (discharge) by the pump sealing capacity change of the basic principle to complete.
Hydraulic pump types and performance characteristics
1. Hydraulic pump is divided into plunger pump, vane pump, gear pump and screw pump according to the structure. According to the total flow is divided into: quantitative pump, variable pump. The types and performance characteristics of hydraulic pumps are shown in the following table:
According to the performance comparison, gear pumps (external meshing, internal meshing) are quantitative pumps, floating shaft drive, high speed, with working pressure (total flow) pulsation. Vane pumps and plunger pumps have quantitative pumps and variable pumps. Rotational speed is not high.
2, quantitative pump and variable pump available position summary
Gear pumps used as metering pumps are commonly used in machine tools, construction machinery, agricultural machinery, aviation, Marine mooring and general machinery. Vane pumps are commonly used in machine tools, injection molding machines, hydraulic presses, crane transport machinery, construction machinery and aircraft. Piston pump is often used in construction machinery, forging machinery, transportation machinery, mining machinery, metallurgical machinery, ship mooring, aircraft and so on.
Ruian Tianrui Hydraulic Machinery Co., Ltd. specializes in the production of four column hydraulic press, more related products please pay attention to the official website www.zjtianruiyeya.com
Hydraulic pump types and performance characteristics
1. Hydraulic pump is divided into plunger pump, vane pump, gear pump and screw pump according to the structure. According to the total flow is divided into: quantitative pump, variable pump. The types and performance characteristics of hydraulic pumps are shown in the following table:
According to the performance comparison, gear pumps (external meshing, internal meshing) are quantitative pumps, floating shaft drive, high speed, with working pressure (total flow) pulsation. Vane pumps and plunger pumps have quantitative pumps and variable pumps. Rotational speed is not high.
2, quantitative pump and variable pump available position summary
Gear pumps used as metering pumps are commonly used in machine tools, construction machinery, agricultural machinery, aviation, Marine mooring and general machinery. Vane pumps are commonly used in machine tools, injection molding machines, hydraulic presses, crane transport machinery, construction machinery and aircraft. Piston pump is often used in construction machinery, forging machinery, transportation machinery, mining machinery, metallurgical machinery, ship mooring, aircraft and so on.
Ruian Tianrui Hydraulic Machinery Co., Ltd. specializes in the production of four column hydraulic press, more related products please pay attention to the official website www.zjtianruiyeya.com