Improvement and Experimental Research on High-Pressure Gear Pump Based on Volumetric Efficiency

Abstract:

Based on the basic structure of typical high-pressure gear pump, a new kind of high-pressure gear pump was designed and applied in water hydraulic transmission system. In this design, the floating plate of typical gear pump is ceramiclized to improve its wear-resisting property; the balance chamber was used to brace and lubricate the axle. Furthermore, the radial unbalanced force induced by the pressure difference of input and output is balanced by the structure of balance chamber. The dynamic characteristic of gear pump is improved and the axel wear is reduced. By using tip relief of tooth flank profile modification, the leakage rate of gear flank is effectively reduced, and the volume efficiency is improved.

• Periodical: Advanced Materials Research (Volumes 503-504)
• Pages: 739-742
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.503-504.739
• Online since: April 2012
• Authors: Ping Bai
• Keywords: High Pressure Gear Pump, Research, Volumetric Efficiency

References

[1] LIMGH, CHUAPSK, HEYB. Modern water hydraulics the new energy transmission technology in fluidpower[J]. App lied Energy, 2003, 76: 239 - 246.

[2] GuangyuanChai. Charcteristic and Technical Trouble of Pure Water Hydraulic DrivingTechnique. [J]Mining & Processing Equipment, In Chinese. 2007, 10, 167~168.

[3] Cunxing He. Hydraulic components[M]. China Machine Press. In Chinese. 1982. 2.

[4] Hongjia Zhang. Metal cutting machine tools hydraulic transmission [M]. Jiangsu science and technology Press. In Chinese. 1981. 1.

[5] Ji Luo. Design and Study of Internal Gear Pump Used in Water Hydraulics[J]China Mechanical Engineering. In Chinese. 2003. 11. 912~914.

[6] PingBai. Experiment research on new ceramic technique for water hydraulic components [J] Machine Tool & Hydraulics. In Chinese. 2007. 2. 117~118.

[7] Ping Bai. Chinese Patent: 2003265417. 0(2003).

[8] Ping Bai. Chinese Patent: 200810029364. 7(2008).