轴向滑块凸轮式差速器的设计与分析

The Design and Analysis of Axial Sliders Cam Differential

针对现有差速器锁紧系数小、结构复杂等问题,设计了一种轴向滑块凸轮式差速器,并对其中的关键零件(差速轮和滑块)的重要表面——螺旋面建立了参数方程。通过啮合原理分析认为,滑块两端的螺旋面与差速轮的螺旋面,在任何位置均能实现良好啮合。对差速轮与差速器壳(即滑块)之间的角速度关系进行定量分析后得知,左右两侧差速轮的角速度之和恒等于差速器壳角速度的两倍,两侧差速轮的反转矩之和恒等于差速器壳的输入转矩,即符合普通锥齿轮差速器的角速度关系和转矩分配关系。但是,该差速器分配给两侧差速轮的转矩是不相等的,其锁紧系数K=0.4、转矩比Kb=2.3,二者均比较大,因此有利于进一步提高车辆的通过性和越野能力。

The axial sliders cam differential was developed based on research for the questions of low lock factor and structure complexity, and the parameteric equation for its helicoids of the important surface of differential＇s key parts （spider gears and slider）. The across analysis of mesh theory shows that both the helicoids of slider and spider gear could well mesh at any position. Through quantitative analysis of the angular velocity relationship between spider gears and differential＇s shell known that the sam of angular velocity of the two spicler gears （ left and right） is always as twice as that of differential＇s shell, and the against torque of two spider gears is same as the import torque of differential＇s shell, this means that the new differential accords with angalov velocity relations and torque relations of common bevel gear differential. But it is not equal to the two spider gears torque that differential distributed. The loc- king coefficient K = 0.4and the torque ratio Kb = 2.3, are much too bigger, so it is propitious to improve the pass capability and cross - country capability of the vehicle.