高压齿轮泵浮动侧板的动态平衡机理  

Dynamic Equilibrium Mechanism of Floating End Plate on High Pressure Gear Pump

作　　者：刘巍 王世明[1] 杨远禄 

机构地区：[1]上海海洋大学工程学院,上海201306 [2]潍柴动力(青州)传控技术有限公司,山东青州262500

出　　处：《船舶工程》2017年第10期37-41,61,共6页Ship Engineering

摘　　要：针对高压齿轮泵浮动侧板磨损问题,在解析齿轮泵内部流场的基础上重点研究浮动侧板反推力作用点变化规律和导致侧板产生倾覆力矩的关键因素。以某型号高压大排量齿轮泵为模型,运用CFD软件解析齿轮泵内部流场并根据侧板结构特点建立压紧力和反推力的求解微分方程,求得一个轮齿啮合周期内的侧板倾覆力矩变化规律,同时通过建立齿轮泵工作腔压力测试系统对该理论分析结果进行验证。结果显示:额定工况下试验值与理论值的误差为4.18%,当齿轮转角φ=14°时倾覆力矩达到最大值Ms=82.16 N·m。该研究结果可为高压大排量齿轮泵浮动侧板倾覆力矩计算和侧板结构优化设计提供理论基础和技术支撑。To solve the high-pressure gear pump floating end plates wear problems, the paper focuses on the variation of anti-thrust point of floating side plate and the key factors that lead to overturning moment of side plate based on the flow field inside the gear pump analysis. The CFD software is used to resolve the internal flow field by a certain type of high-pressure and large displacement gear pump model. The rule of the end plate overturning moment variety in a gear tooth meshing cycle is obtained by to establish the differential equation of the compressive force and the counter thrust. At the same time, the result of the theoretical analysis is verified by the establishment of gear pump working chamber pressure test system. The result shows that the value error between the test and theoretical is 4.18%, when the tooth angle φ=14° the maximum overturning moment value Ms=82.16 N·m. The result provides a theoretical basis and technical support for the calculation of the overturning moment of the floating side plate of the high pressure large displacement gear pump and the optimization design of the side plate structure.

关 键 词：高压齿轮泵 浮动侧板 动态平衡 倾覆力矩 

分 类 号：TH137.52[机械工程—机械制造及自动化]