摘要
提出了一种滑阀稳态液动力补偿方法,即在阀芯上加工环形槽。首先对阀芯的稳态液动力进行理论分析,结果表明在阀芯上加工环形槽,能够起到稳态液动力补偿的作用;再对滑阀进行流场仿真分析,结果表明稳态液动力的补偿程度与阀套沉割槽深度、阀芯环形槽深度、宽度等因素密切相关:沉割槽深度越小,环形槽深度越大,宽度越大,补偿效果越明显,补偿能力可以达到50%以上。但由于尺寸和强度条件的制约,环形槽不能完全消除阀芯稳态液动力。
A new technique for the compensation of steady state flow forces in slide valves is put forward that a annular groove is cut on the piston. The paper first conducts a theoretical analysis on steady state flow forces of the piston and results show that the annular groove on the piston can effectively compensate the steady state flow forces; afterwards,the flow field of slide valves is simulated and results indicate that the compensation level of steady state flow forces is closely related to the depth of cutting groove of the valve sleeve as well as the depth and width of annular groove on the piston. The compensation capacity is strengthened,reaching over 50%,with larger depth of cutting groove,larger depth and width of annular groove. However,the annular groove cannot completely remove steady state flow forces of the piston under the restriction of size and strength.
作者
张友杰
李维林
Zhang Youjie;Li Weilin(School of Mechanical and Automotive Engineering,Chuzhou University,Chuzhou,Anhui 239000,China)
出处
《黑龙江工业学院学报（综合版）》
2018年第10期51-55,共5页
Journal of Heilongjiang University of Technology(Comprehensive Edition)
基金
滁州学院校级规划项目(编号:2015GH47)
安徽省高校自然科学研究重点项目(编号:KJ2016A529)
安徽省教育厅自然科学一般项目(编号:KJ2017B07)
关键词
滑阀
稳态液动力
补偿
环形槽
slide valves
steady state flow forces
compensation
annular groove
