A gear pump based on harmonic gear drive

作者：Zhu Hai Lin^*; Ning Peng; Zou Min; Qin Xingpei; Pan Jun

来源：Proceedings of the Institution of Mechanical Engineers - Part C: Journal of Mechanical Engineering Science , 2013, 227(12): 2844-2848.

DOI：10.1177/0954406213479272

• Gear pump
• harmonic gear drive
• flexible gear
• rigid gear
• radial pressure
• balance

Aimed at solving the problems of radial fluid pressure imbalance, bigger flow ripple and shorter service life that exists in traditional gear pumps, a new type of gear pump based on the principle of harmonic gear drive is put forth, where the function for pumping fluid is achieved by mutual engagement between flexible gear and rigid gear. The structural composition, principle and features of the new gear pump are described in this article. The new pump has two higher pressure cavities arranged symmetrically, which counteracts the fluid pressure and the pump could work longer. Its displacement is two times that of the conventional gear pump and the total discharge is bigger. Flow pulsation, vibration and noise in the new pump are evidently diminished, which make the operation smooth. The new gear pump has superiority in performance and could guide the development in gear pump technology.

• 出版日期2013-12
• 单位常州大学