英语翻译32.7 Springs serving also as torque and thrust membersThis system,Fig.32.3,known as the Hotchkiss drive,is the most widely used.The springs A are rigidly bolted to the axle casing B.Their front ends are pivoted in brackets on the frame or

英语翻译32.7 Springs serving also as torque and thrust membersThis system,Fig.32.3,known as the Hotchkiss drive,is the most widely used.The springs A are rigidly bolted to the axle casing B.Their front ends are pivoted in brackets on the frame or
英语翻译
32.7 Springs serving also as torque and thrust members
This system,Fig.32.3,known as the Hotchkiss drive,is the most widely used.The springs A are rigidly bolted to the axle casing B.Their front ends are pivoted in brackets on the frame or vehicle structure,and their rear ends connected to the structure by means of either swinging links,or shackles C.or simply sliding in brackets as in Figs 35.7 and 37.18.
Obviously torque reaction causes the springs to flex,or wind up,as shown exaggeratedly in Fig.32.4.Brake torque of course would flex them in the opposite direction.Since the front ends of the springs are anchored to the pins on the structure,they will transmit drive thrust and brake drag.The freedom of their rear ends to move fore and aft of course allows for variations in the curvature,or camber,of the spring with vertical deflection.
Wind-up of the springs under brake or drive torque causes the axle to rotate through a small angle,causing its nose either to lift,as in Fig.32.4,or to drop.In the illustration,the spring wind-up has shifted the alignment of
the final drive bevel pinion shaft from its normal attitude LO to LN,in which circumstances the propeller shaft would be subjected to severe bending loads were it not for the universal joints at O and M.
When the axle moves upwards relative to the carriage unit,it must move in the arc of a circle whose centre is approximately the axis of the pivot pin at the front end of the spring.The propeller shaft,on the other hand,must move on the arc of a circle centred on its front universal joint.Because these two centres are not coincident,the distance between the front universal joint and the forward end of the bevel pinion shaft will vary as the propeller shaft swings up and down.This variation is accommodated by the incorporation of a sliding joint somewhere in the drive line between the gearbox output shaft and bevel pinion in the axle.Usually a sliding splined coupling is formed on a fork of one of the universal joints,but sometimes a universal joint of the pot type,as for example in Fig.26.12,is used.The example illustrated is the Birfleld Rzeppa constant-velocity joint,another would be the very neat and simple universal joint used on the inner ends of the swinging halfshafts of the 1955 Fiat 600 rear-engine car.In the latter instance a rubber joint at the outboard end of each shaft accommodated the cyclic variations in velocity.
Rotation of the axle about a longitudinal axis,for example if one wheel only rises,is accommodated mainly by flexure of the springs,in a torsional sense,of rubber bushes,and by deflections of the shackles or within clearances in sliding end fittings.For cross-country vehicles,however,special forms of connection of the spring ends to the frame are sometimes used to isolate the springs from such twisting effects.Figs 37.13 to 37.15.

英语翻译32.7 Springs serving also as torque and thrust membersThis system,Fig.32.3,known as the Hotchkiss drive,is the most widely used.The springs A are rigidly bolted to the axle casing B.Their front ends are pivoted in brackets on the frame or
32.7林斯现任委员也扭矩和推力该系统图. 32.3,作为霍奇基斯车道,是一种最广泛的应用.一个是硬性的弹簧固定在半轴套管前端二是无所不能他们在对车辆结构的框架或支架,和他们的后方两端连接的任一链接方式摆动的结构,或束缚C或干脆括号内滑动如在图35.7和37.18.显然扭矩反应会导致弹簧弯曲,或清盘,如图所示夸张地研究. 32.4.制动力矩当然会弯曲在相反的方向.由于前面的弹簧固定在结构上的针脚结束后,他们将发送驱动的推力和制动阻力.后方自己的目的自由移动船头和船尾当然可以竖向挠度变化的曲率,或拱,在春季.停业的泉水或驱动器下的制动力矩的原因,通过一个小角度的旋转轴,导致它的鼻子或者解除,如图. 32.4,或下降.在图中,春风行动已转移了对齐
最后的驱动器从正常的态度,劳锥齿轮轴的法律公告,在何种情况下螺旋桨轴将会受到严重弯曲载荷,如果不是于O和M的万向节
当向上移动轴相对于运输单位,必须朝着一个圆,圆心大约在春季结束前支点销轴弧线.螺旋桨轴,另一方面,必须继续前进,在其前面的万向节为中心的圆弧.由于这两个中心不重合,两者前万向节和锥齿轮轴的前端的距离会有所不同的螺旋桨轴的上下波动.这种变化是由一个容纳滑动联合团之间的某个地方,变速箱输出轴和锥齿轮轴驱动线.通常一个滑动花键上形成一个耦合的万向节的一叉,但有时在锅底型万向节,为图的例子. 26.12,是用来.这个例子说明是Birfleld Rzeppa等速接头,另一个将是非常整洁和简单的万向节的菲亚特600在1955年后置引擎车的摆动halfshafts的内端使用.在后一种情况的橡胶在入住速度的周期性变化的每一个轴外侧端关节.
旋转的轴约纵轴例如,如果一个轮只上涨,主要是由柔性容纳的泉水,对扭转意义上的橡胶衬套,并通过内部的束缚中变形或滑动端接头间隙.对于越野车,然而,特殊的弹簧连接两端的框架形式有时被用来隔离泉水从这种扭曲的影响.图37.13至37.15.