What are the types of universal transmission devices?

[StJude]

Universal transmission devices can be classified into enclosed universal transmission devices and open universal transmission devices. A universal transmission device is used to transmit power between two shafts whose relative positions constantly change during operation. Its function is to connect the transmission output shaft and the differential input shaft, which are not aligned, and ensure reliable power transmission even when the angle and distance between the two shafts frequently change. The enclosed universal transmission device uses a single universal joint, with the drive shaft enclosed in a sleeve. The sleeve is connected to the frame via a ball joint and fixed to the drive axle. Its most notable feature is that the transmission housing serves as a thrust tube to transmit the vehicle's longitudinal force, allowing the drive shaft housing to function as a longitudinal swing arm in the suspension system's guiding mechanism. The open universal transmission device has a simple structure and is lightweight, making it widely used in modern vehicles.

[StRonan]

I understand there are several common types of universal joints. The cross-type universal joint is used at the rear end of the driveshaft, allowing angular changes but causing speed fluctuations. The constant velocity joint (CV joint) is used on drive wheels to maintain constant speed during turns. There's also the double universal joint, which combines two cross-type joints to reduce issues. The ball-type CV joint is a variant of the CV joint, using steel balls for smooth operation. In daily driving, I've noticed CV joints are particularly common in front-wheel-drive car systems, helping reduce vibration and improve comfort, while cross-type joints are more frequently used in truck rear axles. If not properly maintained, such as when the protective boot is damaged and lets in dust, universal joint wear can lead to noise or transmission failure. Therefore, regular checks of lubrication conditions are necessary to extend component lifespan.

[StPatrick]

As an automotive enthusiast, I'd like to share about types of universal joints: traditional ones like cross-type universal joints have speed fluctuation drawbacks; improved constant velocity joints include the Rzeppa-type CV joint, which delivers constant speed power transmission to wheels. There are also double cardan joints and tripod designs to meet various vehicle needs. These mechanisms evolved through automotive history, with CV joints solving vibration issues during front-wheel-drive vehicle steering. In practical applications, selecting appropriate types like using double cardan joints in SUVs for enhanced durability is crucial. I'd recommend paying attention to sealing and regular grease replacement to prevent performance degradation from dust accumulation and rust.

[DelGrant]

In my daily life, I've encountered various types of universal joints. For instance, the cross-type is suitable for simple connections, CV joints maintain uniform rotational speed, and double cardan joints optimize angle variations. These ensure stable power transmission during vehicle turns without jamming. Having driven several cars, I find CV joints provide smoother urban driving; if unusual noises occur during daily use, it might indicate worn universal joints needing inspection. Choosing the right type can significantly improve driving experience.