机械类毕业设计-28马力轮式拖拉机最终传动及驱动轴设计、绿化洒水车设计（3吨重量）变速箱取力器及水泵传动.docx

《机械类毕业设计-28马力轮式拖拉机最终传动及驱动轴设计、绿化洒水车设计（3吨重量）变速箱取力器及水泵传动.docx》由会员分享，可在线阅读，更多相关《机械类毕业设计-28马力轮式拖拉机最终传动及驱动轴设计、绿化洒水车设计（3吨重量）变速箱取力器及水泵传动.docx（98页珍藏版）》请在第一文库网上搜索。

1、28马力轮式拖拉机最终传动及驱动轴设计摘要拖拉机是与各种作业机械配套的自走式动力机械，是农业机械化的主要机械。在农业中，他主要用以牵引和驱动多种类农机具完成各项田间作业和农业运输。农村经济日新月异乡镇企业蓬勃发展，城乡交流不断扩大，道路运输量急剧增加，所以运输车辆出现缺口。近年来，随着拖拉机走入田间的不断深入，从作业种类上由耕，耙，播扩大到收获，中耕，栽植，喷雾，打捆等多个方面，与农机具配套作业。农用拖拉机正适合了其农村的这种使用条件：工作环境比较恶劣，农村道路相对复杂，速度不高。在中国现有的生产模式下，广大农民需要的还是中小型拖拉机，国内市场对该档产品的需求量在不断增长。另外和国外拖拉机生产

2、厂家相比我国生产的拖拉机经济实惠，价格只有国外同类产品的一半甚至更少，因此，中小马力拖拉机社会销量和保有量很大，传动系布置多种多样。最终传动是传动系的重要组成部分之一，它的功用是进一步增加传动系的传动比，从而使拖拉机获得所需的驱动力。我这次设计的是轮式28马力拖拉机的最终传动，我采用的是外置外啮合直齿圆柱齿轮式最终传动，轴采用了矩形花键轴。采用这种最终传动设计方案，可以达到设计任务要求，并可保证拖拉机在工作中具有足够的动力输出。关键词：传动比，外啮合，圆柱齿轮，花键轴IDESIGN OF FINAL DRIVE AND DRIVE SHAFT OF 28HP TRACTORABSTRACTTr

3、actor with a variety of echanical operations supporting dynamicself-propelled machinery, agricultural mechanization is the main machinery. Inagriculture, he mainly used for traction and driving range to complete the formof field operations and agricultural transport. Changing rural economy boomingto

4、wnship enterprises, expanding exchanges between urban and rural areas, roadtransport volume increased dramatically, So transport vehicles gap In recentyears, with the tractor into the field continues to deepen, from the types ofoperations by farming, harrows, sowing to harvesting expansion, plowing,

5、planting, Spray, bundled in many aspects, such as, the form of matchingoperations. Farm tractor is suitable for its use of this rural conditions : workenvironment was quite poor, rural roads is relatively complex, speed is not high.In China,s current production model, the majority of the needs of pe

6、asants orsmall tractors, on the domestic market stalls in the demand for productscontinues to increase. Tractor and other foreign manufacturers in Chinacompared to the agricultural economic benefits prices of similar foreignproducts only half or even less, and therefore, the community of small andme

7、dium-horsepower tractor sales and retain enormous capacity. Transmissionlayout varied.Final drive transmission system is an important component of one of itsfunctions is to further increase the drive transmission ratio, so that the tractorwas driven.My current design are 28 horsepower wheeled tracto

8、rs the final drive, Iused the external Gear-final drive. Adopt this final drive design, the design canmeet the requirements for this task, guarantee that the tractor will work withsufficient power output.Key words: Transmission ratio, External, cylindrical gears, spline shaft23前言1第一章最终传动简介3 1 1拖拉机最终

9、传动的功用3 1.2 拉机最终传动的分类3 1.3 拉机最终传动的设计要求3第二章设计任务分析4 2 1设计内容42.2 主要技术指标2.3 设计要求4第三章最终传动设计方案的确定5 3 1设计方案的确定53.2本次设计方案的说明第四章最终传动及驱动轴的设计计算 4. 1整车主要参数 4. 2外啮合圆柱齿轮的主要参数确定4.3圆柱齿轮的结构强度计10 4. 4主动轴的确定与计154.5驱动轴确定与计19 4 6键的校核22 5 7输入轴轴承校核22 6 驱动轴轴承校核23第五章结论25参考文献26致谢27外文资料译文28马力轮式拖拉机最终传动及驱动轴设计摘要拖拉机是与各种作业机械配套的自走式动

10、力机械，是农业机械化的主要机械。在农业中，他主耍用以牵引和驱动多种类农机具完成各项田间作业和农业运输。农村经济日新月异乡镇企业蓬勃发展，城乡交流不断扩大，道路运输量急剧增加，所以运输车辆出现缺口。近年来，随着拖拉机走入田间的不断深入，从作业种类上由耕，耙，播扩大到收获，中耕，栽植，喷雾，打捆等多个方面，与农机具配套作业。农用拖拉机正适合了其农村的这种使用条件：工作环境比较恶劣，农村道路相对复杂，速度不高。在中国现有的生产模式下，广大农民需耍的还是中小型拖拉机，国内市场对该档产品的需求量在不断增长。另外和国外拖拉机生产厂家相比我国生产的拖拉机经济实惠，价格只有国外同类产品的一半甚至更少，因此，中

11、小马力拖拉机社会销量和保有量很大，传动系布置多种多样。最终传动是传动系的重要组成部分之一，它的功用是进一步增加传动系的传动比，从而使拖拉机获得所需的驱动力。我这次设计的是轮式28马力拖拉机的最终传动，我采用的是外置外啮合直齿圆柱齿轮式最终传动，轴采用了矩形花键轴。采用这种最终传动设计方案，可以达到设计任务耍求，并可保证拖拉机在工作中具有足够的动力输出。关键词：传动比，外啮合，圆柱齿轮，花键轴尚 ttdwg1 1英汉doc里|推.doc圜正文doc”彩十动.dwg如需cad图等其他文件，请加q： 1985639755DESIGN OF FINAL DRIVE AND DRIVE SHAFT OF

12、 28HP TRACTORABSTRACTTractor with a variety of echanical operations supporting dynamicself-propelled machinery, agricultural mechanization is the main machinery. Inagriculture, he mainly used for traction and driving range to complete the formof field operations and agricultural transport. Changing

13、rural economy boomingtownship enterprises, expanding exchanges between urban and rural areas, roadtransport volume increased dramatically, So transport vehicles gap In recentyears, with the tractor into the field continues to deepen, from the types ofoperations by farming, harrows, sowing to harvest

14、ing expansion, plowing,planting, Spray, bundled in many aspects, such as, the form of matchingoperations. Farm tractor is suitable for its use of this rural conditions : workenvironment was quite poor, rural roads is relatively complex, speed is not high.In China,s current production model, the majo

15、rity of the needs of peasants orsmall tractors, on the domestic market stalls in the demand for productscontinues to increase. Tractor and other foreign manufacturers in Chinacompared to the agricultural economic benefits prices of similar foreignproducts only half or even less, and therefore, the community of small andmedium-horsepower tractor sales and retain enormous capacity. Transmissionlayout varied.Final drive transmission system is an important component of one of itsfunction