What is one purpose of a final drive crown wheel and pinion?
The Hypoid Drive The other important function of the crown wheel and pinion is to provide the final step-down ratio in the drive line from the engine to the drive wheels. The crown wheel is always a lot bigger than the pinion, so the final drive is a reduction – the wheels rotate slower than the propeller shaft.
What does crown wheel and pinion do in differential?
Such a device which serves the above function is called a Differential. In differential gear assembly, crown wheel and pinion are the critical components. A gear is a mechanical device often used in transmission systems that allows rotational force to be transferred to another gear or device.
How is pinion analysis of differential gear box done?
S H Gawande et.al In this paper mechanical design of crown wheel and pinion in differential gear box of MFWD (FWA) Axle (of TAFE MF 455) is done. Detailed modeling, assembly and analysis of tooth of crown gear and pinion is performed in Pro-E. Finite element analysis is performed to analyse the crown gear tooth for working load.
How is pinion analysis of crown gear performed?
Detailed modeling, assembly and analysis of tooth of crown gear and pinion is performed in Pro-E. Finite element analysis is performed to analyse the crown gear tooth for working load. Induced equivalent stress is less than allowable stress.
Do you need to rebuild the differential pinion?
It should turn freely between the backlash. There should be no binding, obstruction or noise as the pinion rotates. If any of these symptoms are present the differential needs to be rebuilt. Reattach the driveshaft and consume some alcohol.
How does the pinion work on a differential?
Identified are the following: The pinion (yellow) rotates via the driveshaft and turns the ring gear (purple) which is bolted to the differential carrier. The drive axels connect to the carrier via splined openings. Illustrated below is a detailed drawing of the pinion assembly of a typical differential:
What causes the crownwheel to move away from the pinion?
Moving the crownwheel nearer the pinion decreases the backlash, causing the contact patch to shift towards the toe portion of the tooth. Increasing backlash requires the crownwheel to be moved sideways and away from the pinion.
How does a differential lock on a crownwheel work?
The differential lock has to be engaged manually by cable or compressed air, whereas the limited slip or viscous coupling differential automatically operates as conditions demand. All differential locks are designed to lock together two or more parts of the differential gear cluster by engaging adjacent sets of dog clutch teeth.
How to check your crownwheel and pinion tooth alignment?
Prepare crownwheel for examining tooth contact marks (Fig. 7.8) After setting the correct backlash, the crownwheel and pinion tooth alignment should be checked for optimum contact.