Integrated slipper retainer mechanism to eliminate slipper wear in high-speed axial piston pumps |
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| Authors: | Qun CHAO Junhui ZHANG Bing XU Qiannan WANG Fei LYU Kun LI |
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| Affiliation: | 1. State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China2. State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China3. Qing’an Group Co., Ltd, Xi’an 710077, China |
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| Abstract: | The power density of axial piston pumps can greatly benefit from increasing the speed level. However, traditional slippers in axial piston pumps are exposed to continuous sliding on the swash plate, suffering from serious wear at high rotational speeds. Therefore, this paper presents a new integrated slipper retainer mechanism for high-speed axial piston pumps, which can avoid direct contact between the slippers and the swash plate and thereby eliminate slipper wear under severe operating conditions. A lubrication model was developed for this specific slipper retainer mechanism, and experiments were carried out on a pump prototype operating at high rotational speed up to 10000 r/min. Experimental results qualitatively validated the theoretical model and confirmed the effectiveness of the new slipper design. |
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| Keywords: | axial piston pump high speed slipper wear slipper design retainer lubrication model |
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