The plunger pump is an important device of the hydraulic system. It relies on the plunger to reciprocate in the cylinder to change the volume of the sealing working chamber to achieve oil absorption and oil pressure. The plunger pump has high rated pressure, compact structure and high efficiency. And convenient flow adjustment ![Piston pump]()
Piston pump working principle Piston pump is an important device of hydraulic system. It relies on the plunger to reciprocate in the cylinder to change the volume of the sealing working chamber to achieve oil absorption and oil pressure. The plunger pump has high rated pressure. Compact structure, high efficiency and convenient flow adjustment, it is widely used in high pressure, large flow and flow adjustment applications such as hydraulic presses, construction machinery and ships.
The plunger pump belongs to a volume pump, and the plunger is driven to reciprocate by the eccentric rotation of the pump shaft, and the suction and discharge valves are both one-way valves. When the plunger is pulled out, the pressure in the working chamber is lowered, and the outlet valve is closed lower than the inlet pressure. The inlet valve opens the liquid to enter; when the plunger is pushed, the pressure of the working chamber rises and the inlet valve closes. When the pressure is higher than the outlet pressure, the outlet valve opens the liquid to discharge. When the drive shaft drives the cylinder to rotate, the swash plate pulls the plunger out of the cylinder. Or push back to complete the suction and discharge process. The oil in the working cavity composed of the plunger and the cylinder hole communicates with the suction and discharge chambers of the pump through the oil distribution plate respectively. The variable mechanism is used to change the inclination of the swash plate by adjusting the swash plate. The inclination of the pump can change the displacement of the pump.
Plunger pump structure:
The plunger pump is divided into two representative structures: an axial piston pump and a radial piston pump; since the radial piston pump belongs to a new type of high-efficiency high-efficiency pump, the radial column is continuously accelerated. Plug pump will inevitably become an important part of the application of plunger pump.
Piston pump maintenance:
The swash plate type axial piston pump generally adopts the form of cylinder rotation and end face distribution. The end face of the cylinder body is provided with a friction pair composed of a bimetal plate and a steel oil distribution plate, and most of them adopt a plane distribution method. Therefore, the maintenance is more convenient. The oil distribution plate is one of the key components of the axial piston pump. When the pump is working, on the one hand, the high pressure oil of the working chamber pushes the cylinder to the oil distribution plate, and on the other hand, between the oil distribution plate and the cylinder block. The oil film pressure forms a hydraulic reverse thrust force on the cylinder body to make the cylinder body face away from the oil distribution plate. The design hydraulic pressure FN of the cylinder body to the oil distribution plate is slightly larger than the hydraulic reverse thrust Ff of the oil distribution plate to the cylinder block, that is, Fn/Ff= 1.05~1.1 makes the pump work normally and maintains high volumetric efficiency.
Piston pump other types of products: high pressure pneumatic piston pump, pneumatic piston pump
Http://NewsDetail292T2.htmlChina Hardware Business Network http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
Piston pump working principle Piston pump is an important device of hydraulic system. It relies on the plunger to reciprocate in the cylinder to change the volume of the sealing working chamber to achieve oil absorption and oil pressure. The plunger pump has high rated pressure. Compact structure, high efficiency and convenient flow adjustment, it is widely used in high pressure, large flow and flow adjustment applications such as hydraulic presses, construction machinery and ships.
The plunger pump belongs to a volume pump, and the plunger is driven to reciprocate by the eccentric rotation of the pump shaft, and the suction and discharge valves are both one-way valves. When the plunger is pulled out, the pressure in the working chamber is lowered, and the outlet valve is closed lower than the inlet pressure. The inlet valve opens the liquid to enter; when the plunger is pushed, the pressure of the working chamber rises and the inlet valve closes. When the pressure is higher than the outlet pressure, the outlet valve opens the liquid to discharge. When the drive shaft drives the cylinder to rotate, the swash plate pulls the plunger out of the cylinder. Or push back to complete the suction and discharge process. The oil in the working cavity composed of the plunger and the cylinder hole communicates with the suction and discharge chambers of the pump through the oil distribution plate respectively. The variable mechanism is used to change the inclination of the swash plate by adjusting the swash plate. The inclination of the pump can change the displacement of the pump.
Plunger pump structure:
The plunger pump is divided into two representative structures: an axial piston pump and a radial piston pump; since the radial piston pump belongs to a new type of high-efficiency high-efficiency pump, the radial column is continuously accelerated. Plug pump will inevitably become an important part of the application of plunger pump.
Piston pump maintenance:
The swash plate type axial piston pump generally adopts the form of cylinder rotation and end face distribution. The end face of the cylinder body is provided with a friction pair composed of a bimetal plate and a steel oil distribution plate, and most of them adopt a plane distribution method. Therefore, the maintenance is more convenient. The oil distribution plate is one of the key components of the axial piston pump. When the pump is working, on the one hand, the high pressure oil of the working chamber pushes the cylinder to the oil distribution plate, and on the other hand, between the oil distribution plate and the cylinder block. The oil film pressure forms a hydraulic reverse thrust force on the cylinder body to make the cylinder body face away from the oil distribution plate. The design hydraulic pressure FN of the cylinder body to the oil distribution plate is slightly larger than the hydraulic reverse thrust Ff of the oil distribution plate to the cylinder block, that is, Fn/Ff= 1.05~1.1 makes the pump work normally and maintains high volumetric efficiency.
Piston pump other types of products: high pressure pneumatic piston pump, pneumatic piston pump
Http://NewsDetail292T2.htmlChina Hardware Business Network http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
Pneumatic Telescopic Mast with power of air source, promote the movement of multicylinder through air compression to lift the mast. Pneumatic telescopic mast industry has experienced a rapid development recently. This mast has been widely used in various fields such as illumination, communication, disaster relief and etc. Due to the features of light loading, general structures, normal maintenance, high security, extreme weather, pneumatic masts have been recognized gradually.
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