橡胶履带牵引车辆改进设计高速行走机构.docx

橡胶履带牵引车辆改进设计高速行走机构.docx

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橡胶履带牵引车辆改进设计高速行走机构

橡胶履带牵引车辆改进设计（高速行走机构）

摘要

近年来，我国经济得到了飞速的发展，农业现代化也得到了进一步的提高。

进入21世纪后，国家更加注意到了农业重要性，采取了一系列优惠政策扶植农业机械的发展。

我国是一个农业大国，拖拉机的制造和使用在数量上一直处于世界的前列，但其技术含量和发达国家相比差距较大，改变落后的机械水平，要提高工作效率和使用性能，进一步提高动力性和经济性对我们国家来说具有重要的意义，对可持续发展战略具有深远的影响。

履带拖拉机行走系由履带行走装置和悬架组成，履带行走装置包括履带、驱动轮、支重轮、托轮、张紧轮和张紧缓冲装置；悬架包括连接拖拉机机架和支重轮的全部构架。

履带行走装置的设计要求主要是保证拖拉机附着性能，降低接地压力，减少滚动阻力，提高零部件寿命。

悬架的设计要求是保证拖拉机的行驶平顺性和稳定性。

关键字：

履带驱动轮支重轮托轮张紧轮和张紧缓冲装置

RUBBERTRACKTRACTORDESIGN（HIGHSPEEDWALKING）

ABSTRACT

Inrecentyears,Chinahasmaderapideconomicdevelopment,agriculturalmodernizationhasbeenfurtherimproved.Afterenteringthe21stcentury,countriesmorenotedtheimportanceofagriculture,adoptedaseriesofpreferentialpoliciestosupportthedevelopmentofagriculturalmachinery.

Chinaisalargeagriculturalcountry,atractormanufacturinganduseofthequantityhasbeenintheforefrontoftheworld.However,itstechnicalcontentandthewidegapbetweenthedevelopedcountriesintermsofchangingthebackwardmachinery,Toimproveefficiencyandperformanceandfurtherimprovethepowerandeconomyofourcountryisofgreatsignificance,onthestrategyofsustainabledevelopmenthasfar-reachingimpact.

CrawlertractorfromtheDepartmentofcrawlerdevicesandsuspensioncomponents,includingtheinstallationofcrawlertracks,drivingwheel,supportingwheels,Roller,Tensionroundandtensiondevice;Suspensionincludestheconnectiontractorrackandsupportallthewheelsframework.

Crawlerdevicedesignrequirementsistoensurethatthemaintractorattachmentperformance,lowergroundpressure,reducedrollingresistance,Partsraiselifeexpectancy.Suspensiondesignrequirementsistoensurethatthetractorridecomfortandstability.

Keywords:

TrackeddrivingwheelsupportingwheelsRollerTensionroundandtensiondevice

符号说明

拖拉机使用重量T

地面附着系数一般取=1.0

支重轮滚动表面直径㎜

拖链轮轮缘直径㎜

弹性模量N/㎜

驱动轮节圆直径㎜

驱动轮齿顶圆直径㎜

驱动轮齿根圆直径㎜

履带节距㎜

履带销套外径㎜

驱动轮工作齿数

驱动轮轮齿数

重力加速度=9.8m/s

每侧支重轮个数

履带前倾角

履带后倾角

第一章前言························································5

第二章履带行走系的总体设计····································7

§2.1履带行走系的总体设计········································7

§2.2履带行走系类型的选择·······································7

§2.3整体台车行走系总体设计·····································8

§2.4平衡台车行走系总体设计·····································9

§2.5其它台车行走系总体设计····································10

§2.6动力性能估计···············································11

第三章悬架的设计···············································12

§3.1履带车辆的悬架机构·····································12

§3.2整体台车行走系悬架结构·······························12

§3.2.1半钢性悬架机构·····································12

§3.2.2刚性悬架和弹性悬架结构·······························13

§3.3平衡台车行走系悬架机构·····································13

§3.3.1悬架结构················································13

§3.3.2悬架性能参数的选择···································14

第四章履带行走系结构与选择···································15

§4.1驱动轮的位置···········································15

§4.2引导轮的位置···········································15

§4.2引导轮的位置···············································15

§4.4托链轮的个数和位置········································16

§4.5方案设计···················································16

第五章履带行走装置·············································18

§5.1履带技术要求···············································18

§5.2履带类型···················································18

§5.3履带尺寸确定···············································19

§5.4履带的校核·················································22

§5.5履带的尺寸确定和校核······································23

第六章驱动轮···················································26

§6.1驱动轮齿形设计·············································26

§6.2驱动轮的结构设计···········································26

§6.3凹齿齿形的设计计算·········································27

§6.4驱动轮轴各项尺寸的确定·····································28

§6.5驱动轮强度校核·············································29

第七章支重轮···················································30

§7.1结构设计···················································30

§7.2各项尺寸的确定·············································31

§7.3支重轮各个构件的选择·······································32

§7.4支重轮强度验算·············································32

第八章张紧轮及张紧装置······································34

§8.1张紧轮·····················································34

§8.2张紧度调整机构············································35

§8.3缓冲弹簧···················································36

§8.4零件强度计算···············································37

第九章托链轮···················································38

第十章结论······················································39致谢······························································40参考文献··························································41

第一章前言

在拖拉机制造的多年发展历史中，行走系的技术进步和水平一直处于举足轻重的地位。

拖拉机性能的好坏，不仅取决于发动机，而且很大程度