一种新型电液阻尼缓冲阀的设计与研究  

Design and Research of a New Type Electro-hydraulic Damping Buffer Valve

作　　者：魏聪梅[1] 刘晋亮 刘少龙[1] 乔永杰 吕学明 WEI Congmei, LIU Jinliang, LIU Shaolong, QIAO YongJie, LV Xueming(1. School of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China;2. Shanxi Engineering Machinery Plant, Taiyuan 030003, Chin)

机构地区：[1]太原科技大学机械工程学院,山西太原030024 [2]山西省工程机械厂,山西太原030003

出　　处：《液压气动与密封》2018年第6期36-39,共4页Hydraulics Pneumatics & Seals

基　　金：山西省自然科学基金(2014011024)

摘　　要：液压缸在制动过程中存在压力突变及波动,导致液压管路和元件的损坏并降低使用寿命等问题。通过采用并联阻尼孔泄荷部分高压油液补回到低压腔,完成了一种电液压缓冲阀的结构及原理设计。以某型挖掘机动臂液压缸的典型工况为研究对象,利用AMESim仿真平台,对该缓冲元件进行了液压缸制动缓冲特性分析。仿真结果显示,该缓冲元件在兼顾制动距离及时间的情况下,可对液压缸压力突变和波动起到良好抑制效果。In the braking process of hydraulic cylinder there is pressure mutation and fluctuation, causing damage to the hydraulic piping components and reduce its service life. By using a parallel damping hole release a part of high pressure oil to the low pressure chamber, a electro-hydraulic parallel damping buffer buffer valve is proposed. The principle and structure design are completed in this paper. Based on the typical working condition of a type of excavated mobile arm hydraulic cylinder,the model of the buffer system is built up and the simulation of hydraulic cylinder braking performance is carried out in the platform AMESim. The results show that the peak value of the braking pressure and fluctuation can be effectively reduced and within the limits of braking time and distance.

关 键 词：并联阻尼孔 缓冲阀 压力波动 AMESIM 

分 类 号：TH137.7[机械工程—机械制造及自动化]