Podcast
Questions and Answers
What connects the gearbox and the rear axle?
What happens to the springs when the torque resistance of the rear axle changes?
What is the purpose of the slip joint?
What type of shaft is used in vehicles with a larger wheel base?
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What is used to connect the two propeller shafts in vehicles with a large distance between the gearbox and rear axle?
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What is the function of the propeller shaft?
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What type of drive is shown in Fig 3?
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What is the purpose of the universal joint?
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Why is the propeller shaft made of strong steel tube?
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What is the role of the pinion shaft in the differential?
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Study Notes
Joints
- Double joints permit diffraction angles of up to 50° but do not allow axial displacement.
- Flexible discs are resilient, maintenance-free, and permit small diffraction angles and linear variations for damping vibrations and noises.
- There are different types of flexible discs, including ball joints and silentbloc joints.
Propeller Shaft
- The propeller shaft connects the gearbox and final drive.
- It has two main functions: transmitting power at a right angle and increasing torque by reducing speed.
- The propeller shaft rotates at high speed, bears heavy torque, and is made of strong steel tube.
- In some vehicles, a solid propeller shaft is used.
- Vehicles with a larger wheel base use two propeller shafts, and centre bearing is used to connect them.
Drives
- There are different types of drives, including Hotchkiss drive and torque tube drive.
- In the Hotchkiss drive, the axle shaft takes the vehicle load as well as the driving thrust, and it has two longitudinal rear leaf springs.
- In the torque tube drive, the propeller shaft is enclosed in a tube that is fastened to the differential housing.
Final Drive (Differential)
- The final drive serves two purposes: transmitting power at a right angle and increasing torque by reducing speed.
- It consists of a pinion, crown wheel, and differential cage, with a spider-cross and planetary gears assembled inside.
- There are different types of differential, including conventional, power or non-slip, and double reduction type.
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Description
This quiz covers the basics of propeller shaft and joints in vehicles, including their functions and types. Understand the different types of joints and their characteristics, as well as the role of the propeller shaft in a vehicle's transmission system.
