一种基于滚动式柱塞的斜盘式轴向柱塞泵
By designing a rolling piston assembly and optimizing the rolling friction of the vertical rotation axis in a swashplate axial piston pump, the problems of poor friction pair coordination and insufficient high-pressure load in the prior art are solved, achieving efficient lubrication and long service life, and adapting to the high-pressure and high-speed working conditions of high-end hydraulic systems.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- YANTAI AIDI PRECISION MASCH CO LTD
- Filing Date
- 2026-03-16
- Publication Date
- 2026-07-17
AI Technical Summary
Existing rolling axial piston pumps lack synergistic optimization in the improvement of dual friction pairs. The piston is prone to self-rotation, the rolling elements are prone to slippage and uneven wear, the high pressure bearing capacity is insufficient, the lubrication effect is poor, and it cannot meet the high pressure and high speed requirements of high-end hydraulic systems.
A swashplate axial piston pump based on a rolling piston was designed. By designing the roller guide groove of the swashplate and the vertical rotation axis of the piston roller, the full rolling synergy optimization of the slipper pair and the piston pair is achieved. The combined thick-walled cylindrical structure and clearance-fit lubrication system are adopted to ensure the formation of a stable elastic hydrodynamic oil film under high pressure and high speed conditions.
It achieves synchronous friction reduction of dual friction pairs, suppresses plunger rotation, improves the lubrication performance and fatigue resistance of the friction pairs, extends the service life of the whole machine, improves volumetric efficiency and overall efficiency, reduces noise, and adapts to high-pressure and high-speed operating conditions.
Smart Images
Figure CN122407501A_ABST