车用直齿圆柱齿轮轮间差速器设计与性能分析
发布时间：2019-05-27 02:17
【摘要】：减少传动系统的体积及重量对提高能量利用率，改善操控性能都很重要。本文在设计直齿圆柱齿轮差速器时，提出了一种新的结构方案，与传统的斜齿轮圆柱齿轮差速器相比，该新型结构的变速器可以压缩差速器轴向尺寸，减少差速器的空间尺寸，实现小体积和轻量化的设计目标。本文所做主要工作为： 用直齿圆柱齿轮构成的WW行星机构作为基本机构，通过齿轮变位的方法使差速器左右两边部分具有不同的传动类型以实现压缩轴向尺寸的目标；文中提出了设计新结构直齿圆柱齿轮差速器时应满足的几个设计条件，其中轴向装配条件与转矩均分条件为本文首次提出，从而解决了设计行星传动机构时选择各齿轮副的变位系数必须满足的设计条件。 文中进行了所设计的差速器在直线行驶与转弯行驶时的运动特性分析、转矩特性分析和传动效率分析，推导出了相应的计算公式。为进一步优化这种新型变速器的设计奠定了基础。 文中根据特定的设计参数，设计了一款新型结构的差速器，并应用PRO/E建立了三维实体模型，应用ADAMS进行了差速器的运动特性和转矩特性分析，表明所设计的差速器工作原理合理，所给出的分析公式正确。 由于新型差速器设计时需要进行计算量大、方法复杂的变位系数选择计算、强度计算等设计或校核计算，本文运用VB编制了一个变位直齿轮设计的CAD程序，，把大量的公式、图表程序化，为差速器的设计计算奠定了基础。 本文所设计的新型差速器可用于对空间及轻量化有较高要求的车辆如轿车、轻型电动车中；本文所进行的相关分析可在设计此类差速器时参考使用。
[Abstract]:Reducing the volume and weight of transmission system is very important to improve energy utilization and control performance. In this paper, a new structure scheme is proposed in the design of spur gear differential. Compared with the traditional helical gear differential, the transmission with this new structure can compress the axial size of the differential and reduce the space size of the differential. Achieve small volume and lightweight design goals. The main work of this paper is as follows: the WW planet mechanism composed of spur gear is used as the basic mechanism, and the left and right sides of the differential have different transmission types by means of gear displacement in order to realize the goal of compression axial size. In this paper, several design conditions for the design of a new structure spur gear differential are put forward, in which the axial assembly condition and the torque sharing condition are put forward for the first time in this paper. Thus, the design conditions that must be satisfied when selecting the displacement coefficient of each gear pair in the design of planet transmission mechanism are solved. In this paper, the motion characteristics, torque characteristics and transmission efficiency of the designed differential in straight line and turn are analyzed, and the corresponding calculation formulas are derived. It lays a foundation for further optimizing the design of this new transmission. In this paper, according to the specific design parameters, a new type of differential structure is designed, and the three-dimensional solid model is established by PRO/E, and the motion and torque characteristics of the differential are analyzed by ADAMS. It is shown that the working principle of the designed differential is reasonable and the analysis formula is correct. Because the design of the new differential requires a large amount of calculation, complex method of displacement coefficient selection calculation, strength calculation and other design or check calculation, this paper uses VB to compile a CAD program for the design of the displacement spur gear, and puts a large number of formulas. The chart is programmed, which lays a foundation for the design and calculation of differential. The new differential designed in this paper can be used in vehicles with high requirements for space and lightweight, such as cars and light electric vehicles, and the correlation analysis in this paper can be used as a reference in the design of this kind of differential.
【学位授予单位】：辽宁工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TH132.41
本文编号：2485824
[Abstract]:Reducing the volume and weight of transmission system is very important to improve energy utilization and control performance. In this paper, a new structure scheme is proposed in the design of spur gear differential. Compared with the traditional helical gear differential, the transmission with this new structure can compress the axial size of the differential and reduce the space size of the differential. Achieve small volume and lightweight design goals. The main work of this paper is as follows: the WW planet mechanism composed of spur gear is used as the basic mechanism, and the left and right sides of the differential have different transmission types by means of gear displacement in order to realize the goal of compression axial size. In this paper, several design conditions for the design of a new structure spur gear differential are put forward, in which the axial assembly condition and the torque sharing condition are put forward for the first time in this paper. Thus, the design conditions that must be satisfied when selecting the displacement coefficient of each gear pair in the design of planet transmission mechanism are solved. In this paper, the motion characteristics, torque characteristics and transmission efficiency of the designed differential in straight line and turn are analyzed, and the corresponding calculation formulas are derived. It lays a foundation for further optimizing the design of this new transmission. In this paper, according to the specific design parameters, a new type of differential structure is designed, and the three-dimensional solid model is established by PRO/E, and the motion and torque characteristics of the differential are analyzed by ADAMS. It is shown that the working principle of the designed differential is reasonable and the analysis formula is correct. Because the design of the new differential requires a large amount of calculation, complex method of displacement coefficient selection calculation, strength calculation and other design or check calculation, this paper uses VB to compile a CAD program for the design of the displacement spur gear, and puts a large number of formulas. The chart is programmed, which lays a foundation for the design and calculation of differential. The new differential designed in this paper can be used in vehicles with high requirements for space and lightweight, such as cars and light electric vehicles, and the correlation analysis in this paper can be used as a reference in the design of this kind of differential.
【学位授予单位】：辽宁工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TH132.41
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