双定子摆动液压马达泄漏与容积效率分析及密封改进

发布时间：2018-01-02 06:11

本文关键词：双定子摆动液压马达泄漏与容积效率分析及密封改进　出处：《农业工程学报》2017年12期 　论文类型：期刊论文

【摘要】：为了详细分析双定子摆动液压马达的泄漏和容积效率,获得合理的间隙密封尺寸和密封结构改进方案,基于双定子摆动液压马达内部结构的分析,归纳出内、外马达的几何排量计算式,分析出该马达的主要泄漏途径。通过建立各泄漏途径的流量数学式,得到马达在不同连接形式下总泄漏量的一般公式。对不同连接形式下马达的容积效率进行了理论计算,针对马达的端面泄漏提出了密封结构改进方案,同时搭建试验台对改进前后的双定子摆动液压马达样机进行了容积效率测试。结果表明,随着马达进出口压差从1 MPa逐渐升高到10 MPa,马达的容积效率随之降低;且在不同的连接方式下,马达的容积效率也不相同,当进出油口压差一定时,外马达单独工作容积效率最高,内、外马达差动工作容积效率最低。如当马达行程时间为3 s,进出油口压差为4 MPa时,马达容积效率最大值约为92%,最小值约为86%。并且对该马达端面密封的改进可使其容积效率在一定程度上有所提高。该研究为双定子摆动液压马达的设计和应用提供参考。
[Abstract]:For a detailed analysis of the double stator swing hydraulic motor leakage and volume efficiency, obtain the reasonable clearance seal size and seal structure improvement scheme, analyze the internal structure of the double stator swing hydraulic motor based on the summed up, displacement formula of the outer motor, analyzes the leakage way of the motor. Through the establishment of mathematical flow approach the general formula of the motor leakage in different connection forms the total leakage. The volumetric efficiency of different connection forms of the motor are calculated according to the proposed motor end leakage sealing structure improvement scheme, and experiment of double stator swing hydraulic motor prototype before and after the improvement of the volume efficiency test. The results show that with the import and export of motor pressure gradually increased from 1 MPa to 10 MPa, the volume efficiency of the motor decreases; and in the different connection modes, Ma The volume efficiency is not the same, when the oil outlet pressure, volume efficiency of motor work alone, the highest, the lowest volume efficiency of motor differential work. When motor travel time is 3 s, the oil outlet pressure is 4 MPa, the maximum volume efficiency of the motor is about 92%, improvement about 86%. and sealing of the motor end can make its volumetric efficiency is improved to a certain degree minimum. This study provided the reference for the design and application of double stator swing hydraulic motor.

【作者单位】：燕山大学机械工程学院;
【基金】：国家自然科学基金资助项目(50975246)
【分类号】：TH137.51
【正文快照】： 闻德生,商旭东,顾攀,潘为圆,石滋洲,郑伟.双定子摆动液压马达泄漏与容积效率分析及密封改进[J].农业工程学报,2017,33(12):74-81.doi:10.11975/j.issn.1002-6819.2017.12.010 http://www.tcsae.orgWen Desheng,Shang Xudong,Gu Pan,Pan Weiyuan,Shi Zizhou,Zheng Wei.Analysis

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