9t货车驱动桥设计与计算.doc
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9t货车驱动桥设计与计算, 1.58万字摘要随着时代的发展，汽车的作用越来越大，已成了我们生活不可缺少的工具。驱动桥作为汽车四大譆@芍唬男阅艿暮没抵苯佑跋煺�性能，而对于载重汽车显得尤为重要。汽车驱动桥一般由主减速器、差速器、传动装置和驱动桥壳组成，汽车的动力性、燃油经济性、驾驶平顺性和操作稳定性都...
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9t货车驱动桥设计与计算
1.58万字
摘要 随着时代的发展，汽车的作用越来越大，已成了我们生活不可缺少 的工具。驱动桥作为汽车四大譆@芍唬男阅艿暮没抵苯佑跋煺� 性能，而对于载重汽车显得尤为重要。汽车驱动桥一般由主减速器、差 速器、传动装置和驱动桥壳组成，汽车的动力性、燃油经济性、驾驶平 顺性和操作稳定性都和汽车驱动桥的选择有着非常重要的关系。
本文参照传统驱动桥的设计方法进行了对9t货车驱动桥的设计。 首先我们确定了主要部件的结构型式和主要设计参数；然后参考类似驱 动桥的结构，确定出总体布置形式和设计方案；最后依次对主，从动锥 齿轮，支承轴承，差速器行星齿轮，半轴齿轮，全浮式半轴和整体式桥 壳进行了设计计算，其中也包括了对锥齿轮弯曲和接触强度的校核、轴 的强度校核以及轴承的寿命条件校核。
本方案设计简单，操作方便，可靠性强。选用单级主减速器驱动桥， 使得整个后桥的结构简单，制造工艺简单，从而大大的降低了制造成本。 并且，螺旋锥齿轮的单级主减速器提高了后桥的传动效率，提高了传动 的可行性，从而能达到任务书的要求。
关键词： 驱动桥 主减速器 差速器 半轴 桥壳
The design and calculation of 9 tons truck driving axle
Abstract With the development of the times,the effects of automobile is growing, it has become an indispensable tool in our life.Drive axle is the one of automobile four important assemblies.It performance directly influence on the entire automobile,especially for the heavy truck . Truck driving axle generally consists of the main reducer,differential, transmission and drive axle housing.The car's power,fuel economy,driving comfort and operation stability have a very important relationship with the selection of truck driving axle.
The design method of this article for the design of 9 tons truck driving axle is referred to the traditional driving axle . First, we determine the structure of main components and the main design parameters;Then we determine the overall layout forms and the design scheme referenced to the similar driving axle structure; At last , we turn on to design and calculate the the driving and driven bevel gear , the block bearing ,the differential planetary gear , axle shaft gear fully floating axle and axle housing, including the bending and contact strength check of the bevel gear the strength check of shaft and the life condition check of bearing.
The scheme has the advantages of simple design, convenient operation and strong reliability . We select the single stage reducer in drive axle to make the whole drive axle structure and the manufacturing process simple,so that we can reduces the manufacturing cost greatly . Also , single stage reducer consisted of spiral bevel gear can improve the transmission efficiency of the rear axle and the feasibility of the transmission,so as to achieve the requirements of the task book.
Key words: drive axle main reducer differential half axle axle housing
目 录
第一章 课程设计题分析………………………………………………………7
1.1 设计参数………………………………………………………………… 7
1.2 设计要求………………………………………………………………… 7
1.3 驱动桥形式的选择……………………………………………………… 8
第二章 主减速器设计………………………………………………………… 9
2.1 减速器的结构形式……………………………………………………… 9
2.2 主减速器的基本参数选择与设计计算………………………………… 9
2.2.1 主减速比i0的确定…………………………………………………… 9
2.2.2 主减速器计算载荷的确定…………………………………………… 10
2.3 主减速器锥齿轮的主要参数选择………………………………………12
2.4 主减速器锥齿轮的材料………………………………………………… 15
2.5 主减速器圆弧齿螺旋锥齿轮的强度计算……………………………… 16
2.5.1 单位齿长上的圆周力………………………………………………… 16
2.5.2 轮齿的弯曲强度计算………………………………………………… 17
2.5.3 轮齿的表面接触强度计算…………………………………………… 18
2.6 主减速器轴承计算及选择……………………………………………… 20
2.6.1 锥齿轮齿面上的作用力……………………………………………… 20
2.6.2 主减速器轴承载荷的计算…………………………………………… 23
2.6.3 锥齿轮轴承型号的确定……………………………………………… 25
第三章 差速器的设计………………………………………………………… 27
3.1 差速器结构形式选择…………………………………………………… 27
3.2 差速器参数确定………………………………………………………… 28
3.3 差速器直齿锥齿轮的几何尺寸计算…………………………………… 29
3.4 差速器直齿锥齿轮的强度计算…………………..
1.58万字
摘要 随着时代的发展，汽车的作用越来越大，已成了我们生活不可缺少 的工具。驱动桥作为汽车四大譆@芍唬男阅艿暮没抵苯佑跋煺� 性能，而对于载重汽车显得尤为重要。汽车驱动桥一般由主减速器、差 速器、传动装置和驱动桥壳组成，汽车的动力性、燃油经济性、驾驶平 顺性和操作稳定性都和汽车驱动桥的选择有着非常重要的关系。
本文参照传统驱动桥的设计方法进行了对9t货车驱动桥的设计。 首先我们确定了主要部件的结构型式和主要设计参数；然后参考类似驱 动桥的结构，确定出总体布置形式和设计方案；最后依次对主，从动锥 齿轮，支承轴承，差速器行星齿轮，半轴齿轮，全浮式半轴和整体式桥 壳进行了设计计算，其中也包括了对锥齿轮弯曲和接触强度的校核、轴 的强度校核以及轴承的寿命条件校核。
本方案设计简单，操作方便，可靠性强。选用单级主减速器驱动桥， 使得整个后桥的结构简单，制造工艺简单，从而大大的降低了制造成本。 并且，螺旋锥齿轮的单级主减速器提高了后桥的传动效率，提高了传动 的可行性，从而能达到任务书的要求。
关键词： 驱动桥 主减速器 差速器 半轴 桥壳
The design and calculation of 9 tons truck driving axle
Abstract With the development of the times,the effects of automobile is growing, it has become an indispensable tool in our life.Drive axle is the one of automobile four important assemblies.It performance directly influence on the entire automobile,especially for the heavy truck . Truck driving axle generally consists of the main reducer,differential, transmission and drive axle housing.The car's power,fuel economy,driving comfort and operation stability have a very important relationship with the selection of truck driving axle.
The design method of this article for the design of 9 tons truck driving axle is referred to the traditional driving axle . First, we determine the structure of main components and the main design parameters;Then we determine the overall layout forms and the design scheme referenced to the similar driving axle structure; At last , we turn on to design and calculate the the driving and driven bevel gear , the block bearing ,the differential planetary gear , axle shaft gear fully floating axle and axle housing, including the bending and contact strength check of the bevel gear the strength check of shaft and the life condition check of bearing.
The scheme has the advantages of simple design, convenient operation and strong reliability . We select the single stage reducer in drive axle to make the whole drive axle structure and the manufacturing process simple,so that we can reduces the manufacturing cost greatly . Also , single stage reducer consisted of spiral bevel gear can improve the transmission efficiency of the rear axle and the feasibility of the transmission,so as to achieve the requirements of the task book.
Key words: drive axle main reducer differential half axle axle housing
目 录
第一章 课程设计题分析………………………………………………………7
1.1 设计参数………………………………………………………………… 7
1.2 设计要求………………………………………………………………… 7
1.3 驱动桥形式的选择……………………………………………………… 8
第二章 主减速器设计………………………………………………………… 9
2.1 减速器的结构形式……………………………………………………… 9
2.2 主减速器的基本参数选择与设计计算………………………………… 9
2.2.1 主减速比i0的确定…………………………………………………… 9
2.2.2 主减速器计算载荷的确定…………………………………………… 10
2.3 主减速器锥齿轮的主要参数选择………………………………………12
2.4 主减速器锥齿轮的材料………………………………………………… 15
2.5 主减速器圆弧齿螺旋锥齿轮的强度计算……………………………… 16
2.5.1 单位齿长上的圆周力………………………………………………… 16
2.5.2 轮齿的弯曲强度计算………………………………………………… 17
2.5.3 轮齿的表面接触强度计算…………………………………………… 18
2.6 主减速器轴承计算及选择……………………………………………… 20
2.6.1 锥齿轮齿面上的作用力……………………………………………… 20
2.6.2 主减速器轴承载荷的计算…………………………………………… 23
2.6.3 锥齿轮轴承型号的确定……………………………………………… 25
第三章 差速器的设计………………………………………………………… 27
3.1 差速器结构形式选择…………………………………………………… 27
3.2 差速器参数确定………………………………………………………… 28
3.3 差速器直齿锥齿轮的几何尺寸计算…………………………………… 29
3.4 差速器直齿锥齿轮的强度计算…………………..
