Detailed modeling, assembly and analysis of tooth of crown gear and pinion is explained which is. Chapter 11 drive lines, differentials, drive axles, and power train. Iges format continuing the further work in ansys mechanical. The working principle of a differential gear assembly can be. The gearbox is a kind of right angle gear and is suitable for a right angle solution with a low ratio. Differential mechanical device 1 differential mechanical device a cutaway view of an automotive final drive unit which contains the differential input torque is applied to the ring gear blue, which turns the entire carrier blue, providing torque to both side gears red and yellow, which in turn may drive the left and right wheels.
Working of differential gear box for automobile vehicles differential when a four wheeler car takes a turn, the outer wheel turns faster than inner wheel. Working of differential gear box for automobile vehicles. Design a crown wheel gear of differential gear box used in heavy. If you grab the right side output shaft and turn it, itll turn the right drive gear. The wheels must travel at different speeds to prevent tire scrubbing.
When the car is on a straight road, the ring gear, differential case, differential pinion gears, and two differential side gears all turn as a unit. On rear wheel drive vehicles the diff may connect to halfshafts inside an axle casing or drive shafts that. Sir alec issigonis, put the small engine transverselysidewaysunder the hood, mounted the transmission and differential in one unit called a transaxle, and. In rearwheel drive cars, the differential converts rotational motion of the transmission shaft which lies parallel to the cars motion to rotational motion of the half. The function of the differential is to permit the relative movement between inner and outer wheels when vehicle negotiates takes. After that working of differential at various driving condition is demonstrated.
A study on vehicle differential system international journal of. The two differential pinion gears do not rotate on the pinion shaft. In the present work all the parts of differential are designed under static condition and modelled. The driving axle consists of a housing, a differential, two axle shafts half axles, and final drives if required. Rear universal jointa flex joint that connects the drive shaft to the differential yoke. Thus, there is relative movement between inner and outer wheel. Further reduces the rotations coming from the gear box before the same are passed on to the rear axles. Differential gear, in automotive mechanics, gear arrangement that permits power from the engine to be transmitted to a pair of driving wheels. Pdf analysis of differential crown gear and pinion for axle with.
In rearwheel drive cars, the differential converts rotational motion of the transmission shaft which lies parallel to. Bevel gearboxes are special speed reducers with their shafts lying perpendicular to each other and therefore used mainly in rightangle applications. This is because they exert equal force on the two differential side gears. Pdf structural analysis of differential gearbox researchgate. The main functions performed by the differential system are. Differential helps in turning the drive wheels at different rpm while the vehicle takes a turn. The basic parts of a differential is introduced first. A differential is a gear train with three shafts that has the property that the rotational speed of. In this paper the differential gears assembly and its housing are analyzed for the. In the present work all the parts of differential are designed under static. The differential is an important component of the driving axle. Differentials open, locked, limited slip, edl, quattro. Purpose the differential is designed to drive a pair of wheels with equalforce, whilst allowing them to rotate at different speeds in vehicles without a differential, such as karts, both drivingwheels are forced to rotate at the same speed, usually on acommon axle driven by a simple chaindrive mechanism.
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