单泵多马达液压变速器组合机构的设计与研究

发布时间：2018-01-19 13:21

本文关键词： 液压变速器单泵多马达传动多级传动比组合机构受力分析　出处：《液压与气动》2017年02期 　论文类型：期刊论文

【摘要】：针对单泵单马达液压变速器手动变量传动比不准确的问题,提出了单泵多马达液压变速器。通过设计单泵多马达液压变速器的传动回路,得出多马达中各个子马达之间工作方式的组合可以使变速器传动比有多级变化。通过设计组合机构来代替换向阀,使单泵多马达液压变速器更加集成化,效率更高。对组合机构在两个位置之间的切换过程和不同位置处的受力进行分析和计算,结果表明:为避免在切换过程中出现泵、马达进出油路闭死,腰形通道两个圆心之间的角度必须大于某一值;组合机构的中盘受颠覆力矩的作用,其厚度需大于某一最小值,才能避免在壳体内卡死。为单泵多马达液压变速器整体结构的设计奠定了理论基础。
[Abstract]:Aiming at the problem that the manual variable transmission ratio of single pump single motor hydraulic transmission is not accurate, a single pump multi motor hydraulic transmission is put forward. The transmission circuit of single pump multi motor hydraulic transmission is designed. It is concluded that the combination of each sub-motor in the multi-motor can make the transmission transmission ratio change in multistage. By designing the combination mechanism to replace the directional valve, the hydraulic transmission with single pump and multi-motor can be more integrated. The analysis and calculation of the switching process between the two positions and the force at different positions show that: in order to avoid the pump in the process of switching, the motor in and out of the oil circuit is closed. The angle between the two centers of the waist channel must be greater than a certain value; Due to the effect of the subversive torque, the thickness of the central disk of the combined mechanism must be greater than a certain minimum to avoid sticking in the shell, which lays a theoretical foundation for the design of the whole structure of the hydraulic transmission with single pump and multiple motors.
【作者单位】：燕山大学机械工程学院;
【基金】：国家自然科学基金(50975246)
【分类号】：TH137
【正文快照】： 引言液压传动和机械传动、电传动相比,具有功率质量比大、容易实现过载保护、传动平稳等优点,广泛应用于工业机械、行走机械等领域。随着液压技术的不断发展,液压技术的应用范围越来越广,同时也出现了各种液压新产品[1]。液压变速器即整体式液压变速装置,它是随着液压技术的发

【相似文献】