Differential shell process and boring tooling designThe motor car engine power transmission shaft and the clutch, and finally to drive around again assigned half shaft drive wheels, in this article, the drive power transmission way, it is the final assembly of the main parts is reducer and differential. Gear reducer is increased, the function of torque and completely on gear meshing gears, between are easy to understand. But more difficult to understand differential, what, why differential differential?The car is driven car differential main parts. It is in the power of both half shaft transmission shaft, allowing both half with different speed spinning wheels, satisfy both pure rolling form as possible, reducing equi-distant not tire and ground friction. Spider diagram Object graph theory differentialfunctionalAt the turn of the car wheel track line, if the car is circular arc, turn left at the center, and at the same time, the wheels went arc length, the wheels than to balance the difference, left, and right wheel wheels slowlySlip differentialFaster, with different speed up the distance.If you make a whole after wheel, can accomplish on both sides of the wheel speed difference, is also does not have an automatic adjustment. In order to solve this problem, a hundred years ago, France Renault automotive company founder luis Renault will design a differential this thing. Slip differentialconstituteOrdinary differential planetary wheel planetary gear, by plane (differential shell), half axle gear parts etc. The power of the engine into the differential transmissionStructurePlanetary wheel frame, driven directly by the planets wheel drive, right and left two half shaft, wheel drive left and right. Meet the design requirements of differential (left) and the shaft speed (right) = 2 (axial rotational speed) planet round frame. When the car goes, left, right wheel and planetary wheel frame of equal speed, and in a state of equilibrium in the balance among car when turning round to destruction, reduce the speed, the wheel speed increase. StructurePrincipleThis adjustment is automatic differential here, involves minimal energy consumption principle, namely earth all objects are tend to minimum energy. Such a grain of beans in a bowl, beans will automatically stays in the bowl bottom and never stay in the bowl wall, because the bowl bottom is the lowest energy (potential), it automatically select static (minimum) without energy. In the same way,A 3d effectWheel in turning also will be the lowest power consumption tendency, automatically adjusted according to turn radius of the wheel speed around.When turning wheel, because the pull of the phenomenon, the medial wheel slip phenomenon, two driving wheel at will produce two opposite direction of additional force, due to the principle of minimal energy consumption, will inevitably lead to the wheel speed different sides, thus destroyed the balance between three and half shaft are reflected by the half axle gear planetary gears, forced to produce the half shaft rotation speed, speed, the medial axis speed slow speed, so as to realize the difference on both sides wheels.If the drive wheels on both sides of the drive shaft with a whole rigid connection, only two wheels at the same Angle rotation. So, when the steering wheel, due to the lateral than inside the distance moved across the wheels, will make the scroll wheel on the slide, and drag on the scroll wheel inside the slip. Even the car run straight road gravamen, because although flat tire surface or rolling radius (but ranging from manufacturing error, wear different tyres, ranging from uneven pressure or carrying of sliding wheel) and cause.When the wheel sliding tire wear, not only aggravate increased power and fuel consumption, still can make steering difficulties, braking performance deteriorated. As for the wheels, and does not occur in structure sliding must ensure each wheel at different angles can rotate.Axis between differential driven wheels usually use bearing spindle support in the, can at any Angle rotation, and drive wheels with two and half shaft rigid connection, between two and half shaft with differential. The differential and called shaft between differential.Many of the drive shaft, and to make each off-road vehicle drive to different velocity rotating, in order to eliminate the bridge of the drive wheels, some in two axles sliding between between shaft with differential.Differential inspection1 differential shell doesnt have any properties of crack, shell and planetary gear differential half shaft washer, contact between gear, should be smooth without groove, If there is a slight groove or wear, can continue to use after grinding, or should be replaced or be repaired.2 the planetary gear differential shell and planetary gear wheel when the fitting clearance shall not greater than 0.1-0.15 mm, half axle gear s