Gear Pump Gears High Transmission Efficiency Gear For Liquid Transport

Gear Pump Gears High Transmission Efficiency Gear For Liquid Transport

Gear pump gear is an important part of gear pump products. When the driving gear rotates under the drive of the motor or internal combustion engine, it drives the driven gear to rotate together through meshing.

The working principle of gear pump gears

The gear pump consists of two gears, a pump body and front and rear covers to form two closed spaces. When the gears rotate, the volume of the space on the side where the gears are disengaged changes from small to large, forming a vacuum to suck in the liquid, and the volume of the space on the side where the gears are meshed changes from large to small, squeezing the liquid into the pipeline. The suction chamber and the discharge chamber are separated by the meshing line of the two gears.

The gear pump is a separate three-piece structure. The three pieces refer to the pump cover and the pump body. The pump body is equipped with a pair of gears with the same number of teeth, a width close to the pump body and meshing with each other. This pair of gears form a sealed chamber with the two end covers and the pump body, and the sealed chamber is divided into two parts by the gear tooth top and meshing line, namely the oil suction chamber and the oil pressure chamber. The two gears are fixed on the driving shaft and the driven shaft is supported by the needle bearing with keys, and the driving shaft is driven to rotate by the motor.

Tooth design of gear pump gears

Gears in gear pumps often use a variety of tooth designs, such as spur gears, spiral gears, herringbone gears, and arc gears.

Advantages and disadvantages of gear pump gear tooth shape

The spur gear pump has a simple structure, but the vibration and noise are relatively large.

Spiral gear and herringbone gear pumps work smoothly and have uniform flow, but the structure is more complicated.

Double arc sinusoidal tooth shape has no relative sliding on the tooth profile surface during meshing, so there is no wear on the tooth surface, balanced operation, low noise, long life and high efficiency.

Planetary Reducer Gear

DINGSCO-We are committed to being the best high-precision spiral bevel gears supplier.
1. 30 years experience in manufacturing industrial gears.

Our company was formerly known as Changsha Double Star Gear Industrial Co., Ltd, which was established in 1994. It is a directly affiliated university-run enterprise founded by Central South University Professor Zeng Tao, the leading expert on spiral bevel gears in China. It was later renamed as Changsha Senjie Gear Co., Ltd (abbreviated as "CSG") in 2016. CSG is a production R&D base specializing in professional design, reserch, manufacture and sales of high-quality small module spiral bevel gears and high reduction hypoid gears and cylindrical gears. In 2023, Hunan Dinghan New Material Technology Co., Ltd. was established as a specialized international export business department. CSG has strong scientific research and development capabilities and is also equipped a full set of advanced equipment including seven-axis five-linkage CNC spiral bevel gear grinding machines and gear milling machines. By making the best use of the scientific and technological achievements and equipment of the Gear Research Institute of Central South University, machanical processing, heat treatment and testing. We have developed high-quality products featuring high reduction, high speed, heavy load, low noise and less teeth for users.

With the quality policy of "scientific and technological innovation, quality first, being first-class firm and customer‘s satisfaction", we have won the trust of well-known domestic and abroad enterprises with stable and excellent quality. It is committed to be a pioneer of the industry of China's small-module spiral bevel gears, and is dedicated to providing service for any related industry requiring industrial robots, CNC turning and milling compound power tool turrets, industrial sewing machines, reducers, bicycles, power tools and aeromodelling. We sincerely look forward to your cooperation!