??电子游戏??

Welcome to the official website of Hengsheng Hydraulic Parts!

National Service Hotline: 0523-87893614
24-hour service hotline: 13914423342

Expand and

Hengsheng Product Classification

News Center

How to improve the performance of large flow gear pumps?

Publish: Browse:
Application range of large-flow gear pumps : used as transmission and booster pumps in oil delivery systems; used as fuel pumps for delivery, pressurization and injection in fuel systems; as lubricant pumps in all industrial fields use.
Structural features of large flow gear pump: This series of gear pump is mainly composed of gear, shaft, pump body, safety valve and shaft end seal. The gear has high hardness and strength after heat treatment, and it is installed in the replaceable sleeve to run with the shaft. The lubrication of all parts in the pump is automatically achieved by using the output medium when the pump is working. The pump has a well-designed drain and oil return tank, which is the smallest torque force that the gear can bear during work, so the bearing load is small, the wear is small, and the pump efficiency is high.
The pump is equipped with a safety valve for overload protection. The full return pressure of the safety valve is 1.5 times the rated exhaust pressure of the pump. It can also be adjusted according to actual needs within the allowable discharge pressure range. However, please note that this safety valve cannot be used for long-term operation of the pressure reducing valve, and can be separately installed on the pipeline when needed. Looking from the extended end of the main shaft to the pump, it rotates clockwise.
Due to the structural limitation of a fixed displacement, a large-flow gear pump is generally considered to be used only as a constant-flow hydraulic source. However, the accessory and threaded combination valve scheme is effective for improving its function, reducing system cost, and improving system reliability. Therefore, the performance of gear oil pumps can approach the expensive and complicated plunger pumps.
Feasible circuits to improve gear oil pump performance
Gear oil pumps are generally limited to constant-flow hydraulic sources because of their structural limitations. However, the accessory and threaded combination valve scheme is effective for improving its function, reducing system cost, and improving system reliability. Therefore, the performance of gear oil pumps can approach the expensive and complicated plunger pumps.
By directly installing a control valve on a large-flow gear pump, the pipeline between the pump and the directional valve can be omitted, thereby controlling costs. Fewer pipes and fittings reduce leaks and improve work reliability. Moreover, the valve installed on the pump can reduce the circulating pressure of the circuit and improve its working performance. The following are some circuits that can improve the basic function of gear pumps. Some of them are basic circuits that have been proven to be feasible in practice, while others are innovative research.
Unloading circuit
The unloading element combines a high-flow pump with a low-power single pump. The liquid from two gear oil pumps is limited by the structure of a fixed displacement. Generally, it is considered that the gear pump can only be used as a constant flow hydraulic source. However, the accessory and threaded combination valve scheme is effective for improving its function, reducing system cost, and improving system reliability. Therefore, gear oil pumps are generally considered to be only a constant flow hydraulic source due to the structural limitation of a fixed displacement. use. However, the accessory and threaded combination valve scheme is effective for improving its function, reducing system cost, and improving system reliability. Therefore, the performance of gear oil pumps can approach the expensive and complicated plunger pumps. The performance can approach that of expensive, complex plunger pumps. The outlet is discharged until a predetermined pressure and / or flow is reached. At this time, the high-flow pump circulates the flow from its outlet to the inlet, thereby reducing the output flow of the pump to the system, that is, reducing the power of the pump to a value slightly higher than the high-pressure part required for work. The percentage reduction in flow depends on the ratio of unloaded displacement to total displacement at this time. Combination or threaded unloading valves reduce or eliminate piping, orifices and accessories and other possible leaks.

  • Taixing Gear Oil Pump Tel: 0523-87893614 Fax: 0523-87893614 Email: liouxiaoyu716@163.com
  • Address: Haigu Industrial Zone, Huangqiao Town, Taixing City Record number: 苏 ICP 备 16058667
  • Product pictures and copyrights of Taixing Gear Oil Pump
七乐彩 欢乐拼三张 欢乐拼三张 必赢真人娱乐