Universal joint bearing, which refers to the mechanical structure of the dynamic transmission of different axes by the ball type connection, is a very important part of the bearing of the automobile. The combination of the universal joint and the drive shaft is called the universal joint drive. What are the categories of the bearings in the universal joint, and how much do you know?

万向节轴承

Universal joint bearing

    万向节轴承定义

Gimbal bearing definition

    所谓万向节轴承，指的是利用球型连接实现不同轴的动力传送的机械结构，是汽车上轴承一个很重要的部件。而前置发动机前轮驱动的车辆省略了传动轴，万向节安装在既负责驱动又负责转向的前桥半轴与车轮之间。在前置发动机后轮驱动的车辆上，万向节传动装置安装在变速器输出轴与驱动桥主减速器输入轴之间。万向节与传动轴组合，称为万向节传动装置。

So-called universal joint bearing, refers to the mechanical structure of the spherical connecting the power transmission shaft is different, the car bearing a very important parts. The front wheel driven vehicle of the front engine saves the drive shaft, and the universal joint is installed between the half axle and the wheel of the front axle, which is responsible for the driving and the steering. On the rear wheel driven vehicle of the front engine, the universal joint drive is installed between the transmission output shaft and the drive axle main reducer input shaft. The combination of the universal joint and the drive shaft is called the universal joint drive.

    万向节轴承的分类

The classification of gimbal bearing

    准等速万向节和等速万向推力球轴承节

Quasi constant velocity universal joint and the constant velocity section of thrust ball bearing

    常见的准等速万向节有双联式和三销轴式两种，它们的工作原理与双十字轴式万向节实现等速传动的原理是一样的。双联式万向节实际上是一套将传动轴长度减缩至最小的双十轴承字轴式万向节等速传动装置，双联叉相当于传动轴及两端处在同一平面上的万向节叉。在当输出轴与输型号查询入轴的交角较小时，能使两轴角速度接近相等，处在圆弧上的两轴轴线交点离上述中垂线很近，使得α调心滚子轴承1与α2的差很小，所以称双联式万向节为准等速万向节。

Quasi constant velocity universal joint common with double and three pin type two, their work principle and double cardan joint implementation of the principle of constant speed drive is the same. Double cardan joint is actually a set of drive shaft length reduced to the minimum of ten words bearing shaft type universal joint drive device, double fork equivalent shaft and ends in the same plane of the universal joint fork. When the output shaft and the transmission shaft into the query model angle is small, the axis angular velocity close to equal, in two axes on the arc is close to the perpendicular bisector, makes a spherical roller bearing 1 and alpha 2 the difference is very small, so called Double cardan joint for constant velocity universal joint.

    等速万向节

CVJ

    缺点：压力装配，钢球与曲面凹槽单位压力大，拆装不方便，磨损快。只有两个钢球传力，反转时，另两个钢球传力。

Disadvantages: pressure assembly, steel ball and groove surface unit pressure, inconvenient disassembly, quick wear. Only two steel balls have a force that reverses, and the other two balls force.

    球笼式万向节的结构。六个钢球6分别装在由六组内外滚道所对出的空间里，并被保持架4限定在同一个平面内。动力由直线运动轴承主动轴1(及星形套.经钢球6传到球形壳8输出。星形套以内花键与主动轴相连，其外表面有六直线轴承条弧形凹槽，形成内滚道。球形壳8的内表面有相应的六条弧形凹槽，形成外滚道。基本特种轴承原理.从结构上保证万向节在工作过程中，其传力点永远位于两轴交点的平面上。球叉式推力滚子轴承万向节.球笼式万向节优点.结构简单，允许最大交角32&。~33&。

The structure of Rzeppa universal joint. The six steel ball 6 is installed in the space separated by the six groups of inner and outer raceways, and is limited to the same plane by the cage 4. The power is driven by a straight line bearing active shaft 1 (and a star sleeve, passing through a steel ball 6 to a spherical shell 8 output. The spline is connected with the active axis, and the outer surface has six straight bearing strip curved grooves, forming the inner raceway. The inner surface of the spherical shell 8 has six curved grooves, forming the outer raceway. The basic principle of universal joint guarantee special bearing. In the working process of the structure, the plane of the transfer point on the axis is located in the intersection of forever. The ball type universal joint fork thrust roller bearings. Rzeppaconstantvelocity joint. The advantages of simple structure, the maximum permissible angle 32&. ~33&.

    球笼式万向节

Rzeppaconstantvelocity joint

    优点：两轴最大交角为42&am类型。，工作时无论传动方向，六个钢球全部传力。与球叉式万向节相比，结构紧凑，承载能力强，拆装方便。

Advantages: two largest angle of type 42&am. At work, no matter the direction of transmission, the six steel balls all transmit force. Compared with the ball fork type universal joint, the structure is compact, the bearing capacity is strong, and the disassembly and disassembly are convenient.

    球叉式万向节

Weiss universal joint

    若内外滚道采用圆桶形，滑动阻力小，省转盘轴承去传动装置中的滑动花键，则变成伸缩型球笼式万向节，适用断开式驱动桥。目前轿车上轴承常用的等速万向节为球笼式万向节，也有采用球叉式万向节或自由三枢轴万向节的。

If internal and external raceway by drum shaped sliding resistance is small, the province to the slewing bearing sliding spline transmission device, a telescopic universal joint, applicable to drive off the bridge. The car bearings used in the constant velocity universal joint for rzeppaconstantvelocity joint, but also the use of ball fork universal joint or free three pivot joint.