The concept of a hydraulic pump

Hydraulic oil pump is the power source in the hydraulic system, we need to meet the pressure and flow needs of the hydraulic system when selecting the hydraulic oil pump, but also fully consider the reliability, life, maintenance, etc. of the hydraulic oil pump, so that the hydraulic oil pump we choose can run in the hydraulic system for a long time. There are many types of hydraulic oil pumps, and the characteristics between them are also very different. Hydraulic oil pumps include vane pumps, gear pumps, piston pumps and screw pumps, and vane pumps, gear pumps and piston pumps are generally used in the market. Vane pumps can be divided into variable vane pumps, heat dissipation variable vane pumps, variable vane pumps with cooling pumps and quantitative vane pumps.

Hydraulic pumps are used in hydraulic drive systems and can be hydrostatic or hydraulic pumps. The hydraulic pump is a mechanical power source, which converts mechanical power into hydraulic energy. The flow it produces has enough power to overcome the pressure caused by the load at the pump outlet. When the hydraulic pump works, it creates a vacuum at the inlet of the pump, forcing the liquid from the reservoir into the inlet line of the pump, and transporting these liquids to the outlet of the pump by mechanical action, forcing it into the hydraulic system. The hydrostatic pump is a positive displacement pump, while the hydraulic pump can be a fixed displacement pump, the displacement cannot be adjusted, or it can be a variable displacement pump, its structure is more complex, and the displacement can be adjusted. Hydraulic pumps are more common in daily life. Various types of hydrostatic pumps work according to the principles of Pascal’s law.

Hydraulic grease pumps offer a cost-effective option for delivering grease without compressed air. Hydraulic pumps are available with flow control and return port options for centralized lubrication systems.

The working principle of the hydraulic pump is to convert the mechanical energy of the power machine into the pressure energy of the liquid. The cam is driven by an electric motor to rotate. When the cam pushes the plunger upward, the sealing volume formed by the plunger and the cylinder block is reduced, and the oil is extruded from the sealing volume and discharged by the check valve to the place where it is needed. When the cam rotates to the descending part of the curve, the spring forces the plunger downward, forming a certain vacuum degree, and the oil in the tank enters the sealing volume under the action of atmospheric pressure. The wheel makes the plunger continuously lift and lower, the sealing volume periodically decreases and increases, and the pump continuously absorbs and drains oil.

Advantages of hydraulic pump: hydraulic oil pump has small size and light weight, easy to use and high working pressure. The structure of the single-stage pumping station is simple and can obtain a large working pressure. When the two-stage pump station is at low pressure, the high and low pressure pumps will supply oil at the same time, and a large output flow can be obtained; At high pressure, the low-pressure pump automatically returns oil without load through the unloading relief valve. Reduced power consumption.

Jiaxing Jianhe Machinery provides you with economical and efficient lubrication, the company adheres to the professional, efficient, pragmatic attitude to provide services for every customer whole. If you need a dedicated system for your unique equipment, we can design and manufacture a dedicated automatic lubrication system to provide you with the convenience you need.

Post time: Nov-22-2022