JIA Lian-hui,ZHANG Liang,XU Li-ping,XU Shun-hai,LI Ze-kui,LI Dong-lin,LI Jian.Friction Characteristics of Slipper Pair of Large Displacement Piston Pump[J],52(11):248-257, 268
Friction Characteristics of Slipper Pair of Large Displacement Piston Pump
Received:October 18, 2022  Revised:March 09, 2023
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DOI:10.16490/j.cnki.issn.1001-3660.2023.11.019
KeyWord:large displacement piston pump  slipper pair  large bottom  linear velocity difference  friction force
                    
AuthorInstitution
JIA Lian-hui China Railway Engineering Equipment Group Co., Ltd., Henan Zhengzhou , China
ZHANG Liang School of Mechatronics Engineering, Henan University of Science and Technology, Henan Luoyang , China
XU Li-ping School of Mechatronics Engineering, Henan University of Science and Technology, Henan Luoyang , China
XU Shun-hai China Railway Engineering Equipment Group Co., Ltd., Henan Zhengzhou , China
LI Ze-kui China Railway Engineering Equipment Group Co., Ltd., Henan Zhengzhou , China
LI Dong-lin School of Mechatronics Engineering, Henan University of Science and Technology, Henan Luoyang , China
LI Jian School of Mechatronics Engineering, Henan University of Science and Technology, Henan Luoyang , China
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Abstract:
      As the most complex friction pair in the movement mechanism and working condition of large displacement piston pump (LDPP), the friction characteristics of the slipper pair have an important impact on the overall performance of the LDPP. Therefore, the research on the friction characteristics of slipper pair of LDPP has become a hot and difficult issue in the industry. Many experts and scholars have conducted in-depth research on the friction related characteristics of slipper pair. However, due to the test conditions, the research on the friction and wear of slipper pair mainly focuses on the torque loss and power loss caused by the friction of slipper pair of small and medium displacement piston pumps. The slipper pair of LDPP has a large area at the bottom of the slipper, so when the slipper rotates at a high speed, a linear velocity difference will be formed between the inner and outer positions of the slipper pair relative to the center of the swashplate. The cause and change rule of the friction of the slipper pair are different from those of the slipper pair of the small and medium displacement piston pump, while the generation and change rule of the friction of the slipper pair of the relevant LDPP are still lack of systematic analysis.
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