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摘 要
机械液压双功率流转向系统是履带车辆的一种新型转向方式,也就是发动机功率在变速箱的输入轴上分流,一路功率流向变速箱,一路功率流向由变量泵、定量马达及其他控制元件组成的液压转向调速系统。此种转向机构具有转向时平均速度不降低,转向工作效率高,左右履带的速度差能够无级调节,可实现由方向盘操纵进行精确的方向控制,机动性好等许多优点。有效的改善了履带车辆的转向性能。此系统设计的关键就是实现双功率流履带车辆的平稳转向。故本文在参考东方红1302R橡胶履带拖拉机的一些参数的情况下,着重介绍了机械液压双功率流转向系统的液压系统及转向操纵系统的设计方案和工作原理,对液压系统中液压元件,如变量泵、定量马达等进行了设计计算,并合理的选取了系统中所需的液压元件,并使各元件间匹配合理,使其达到最佳的工作状态。同时对设计的液压系统和操纵系统进行了转向性能的初步计算,其结果表明此种设计方案参数匹配合理,能较好的满足履带车辆的转向要求。
关键词:履带车辆,双功率流,液压系统,操纵系统,转向机构
DESIGNING STEERING CONTROL HYDRAULIC SYSTEM OF DOUBLE POWER FLOW TRACKED VEHICLE
ABSTRACT
Mech-hydraulic double power flow steering is a new technique for tracked vehicle's turning systems, This is engine power is broken down in the gearbox input shaft.A part of power flows to gearbox, the other part of power flows to variable pumps, motors and other control components of hydraulic steering regulate speed system . Such turning mechanical have the average speed is not reduced and high efficiency when vehicle.Tracked about the speed difference can be no class regulation, by the steering wheel can be manipulated to achieve accurate direction control, good mobility and many other advantages. An improvement of the tracked vehicle to the performance. The system design is the key to achieving double-tracked vehicle power flow in a smooth shift. It is in reference to the DongFangHong-1302 R rubber tracked tractor some of the parameters of the circumstances, focus on the mechanical-hydraulic power transfer to the system of hydraulic systems and steering control system design and the working principle, for hydraulic components of hydraulic system, such as variable pump, quantitative motors for the design, and the selection of a reasonable system of hydraulic components, to make a reasonable match between components. to enable it to achieve the best working conditions. Meanwhile in the design of hydraulic systems and manipulation of the system performance to the preliminary calculation, The results show that such a design parameter matching reasonable and can better meet the tracked vehicle to the requirements.
KEY WORD:Tracked vehicle, Double power flow, Hydraulic system, Operating system, turning mechanism
目 录
第一章前言...........................................1
第二章液压系统的设计要求.............................2
第三章液压系统的负载分析.............................3
第四章液压系统的方案分析.............................5
§4.1 操纵系统的设计分析................................5
§4.2 液压系统的设计方向................................5
§4.3 总体方案的分析....................................6
第五章液压元件的设计计算与选取....................8
§5.1 液压马达的参数设计与选取..........................8
§5.1.1 液压马达最大转向阻力矩的计算..................8
§5.1.2 液压马达最大每转排量..........................9
§5.1.3 液压马达的最大转速............................9
§5.2液压变量泵的参数计算............................. .9
§5.3 液压系统补油流量的计算...........................10
§5.4 过滤器的选择............................. .......12
§5.5系统发热温升的计算及冷却器的选取.................13
§5.5.1系统发热温升的计算...........................13
§5.5.2 系统散热量的计算.............................14
§5.5.3散热器的选取.................. ...............15
§5.6 油箱的设计计算............................. ...15
§5.6.1 液压系统所需油箱容量的计算..................15
§5.7 液压系统油管及油管接头的选取.....................15
§5.8 液压系统中液压阀的选取...........................16
§5.9 液压油的选用............................. .......16
§5.10 转向操纵系统的选择............................. 17
§5.10.1 转向器的选取............................. ..17
§5.10.2 转向柱的选取............................. ..17
§5.10.3 方向盘的选用............................ ...18
第六章液压系统性能的分析..........................19
第七章结论............... ..........................20
参考文献............................ .................21
致 谢........................... .....................22
参考文献
[1] 曹付义,周至立,贾鸿社. 履带拖拉机液压机械双功率流差速转向机构设计.农业机械学报,2006,第09期, 5-8
[2] 张松敏,周至立,贾鸿社. 双功率流履带车辆转向操纵液压系统设计. 河南科技大学学报(自然科学版),2005,第26卷(第6期),31-34
[3] 中国农业机械化科学研究院编.实用机械设计手册(下).北京:中国农业机械出版社,1985:635-877
[4] 许福玲,陈尧明.液压与气压传动.第二版.北京:机械工业出版社,2005:1-194
[5] 徐灏主编.机械设计手册:第3卷.北京:机械工业出版社,1991
[6] 萨澳-丹佛斯公司编.90系列轴向柱塞变量泵说明书
[7] 萨澳-丹佛斯公司编.90系列轴向柱塞马达说明书
[8] 石熙年,万柏群.液压传动.徐州:中国矿业大学出版社,2002
[9] 李壮云,葛宜远,陈尧明.液压元件与系统.北京:机械工业出版社,1999
[10] 尹士君主编.常用泵智能选择和查询手册.北京:化学工业出版社,2006
[11] 上海智德液压机械制造有限公司编.华德液压说明书.上海
[12] 候洪生.机械工程图学.北京:科学出版社,2001
[13] 王望予主编.汽车设计.北京:机械工业出版社,2004
[14] 诸文农主编.底盘设计.北京:机械工业出版社,1981
[15] 关醒凡编著.现代泵技术手册.北京:宇航出版社,1995
[16] 王昆,何小柏,汪信远主编.机械设计课程设计.北京:高等教育出版社,1996