A hydraulic pump is a device that converts mechanical energy into hydraulic energy and is used in industry, agriculture, aviation, aerospace and other fields. Hydraulic pumps can be divided into many types according to different working principles and application scenarios.
A gear pump is a hydraulic pump that uses the rotation of gears to generate pressure. It has a simple structure, small size, light weight and cheap price, so it is used in various mechanical equipment. The working principle of a gear pump is to suck liquid from the suction port through the rotation of two gears, and then compress the liquid through the gap between the gears to discharge the liquid. The advantages of gear pumps are stable flow, low noise, but low pressure, making them suitable for low-pressure systems.
A plunger pump is a hydraulic pump that generates pressure by reciprocating the plunger in the pump body. Its structure is complex, but it can generate high pressure and flow, so it is used in high-pressure systems. The working principle of the plunger pump is to compress and discharge the liquid through the reciprocating motion of the plunger in the pump body. The advantages of the plunger pump are high pressure and large flow, but it is noisy and more expensive.
A vane pump is a hydraulic pump that uses the rotation of vanes to generate pressure. Its structure is simple and cheap, but its pressure and flow are low, so it is suitable for low-pressure systems. The working principle of the vane pump is to suck the liquid from the suction port through the rotation of the vanes in the pump body, and then compress the liquid through the gaps between the vanes to discharge the liquid. The advantages of vane pumps are cheap price and simple structure, but low pressure and flow rate.
The fourth type is a screw pump. A screw pump is a hydraulic pump that uses the rotation of a screw to generate pressure. Its structure is complex, but it can generate high pressure and flow, so it is used in high-pressure systems. The working principle of the screw pump is to suck liquid from the suction port through the rotation of two screws, and then compress the liquid through the gap between the screws to discharge the liquid. The advantages of screw pumps are high pressure and large flow, but they are more expensive.
The fifth type is a hydraulic motor. A hydraulic motor is a device that converts hydraulic energy into mechanical energy. Its structure is similar to a hydraulic pump, but its working principle is opposite. The working principle of a hydraulic motor is to use the pressure of the liquid to push the rotor inside the motor to rotate, thereby generating mechanical energy. The advantages of hydraulic motors are high speed and large torque, but they are more expensive.
In short, the hydraulic pump is a very important hydraulic component with many types. When selecting a hydraulic pump, it is necessary to select the appropriate type according to the specific work scenario and requirements to achieve working results.
