What are the components of a universal transmission device?
2 Answers
Universal transmission devices mainly consist of universal joints, drive shafts, and intermediate supports. The detailed introduction is as follows: 1. A universal transmission device is used to transmit power between two shafts whose relative positions constantly change during operation. 2. Its function is to connect the transmission output shaft and the main reducer input shaft that are not on the same straight line, ensuring reliable power transmission even when the angle and distance between the two shafts frequently change. 3. Universal transmission devices are installed between the transmission and the drive axle, as well as between the inner and outer half-shafts of the steering drive axle. During installation, the universal joint forks at both ends of the drive shaft must be aligned in the same plane.
The universal joint drive is crucial in automobiles, as it transmits power while allowing angular variations, primarily consisting of several components. One end of the drive shaft has a driving yoke connected to the engine or transmission output, while the other end has a driven yoke linked to the differential or wheels. These yokes are connected by a cross shaft in the middle, which has four joint holes, each fitted with needle roller bearings to reduce friction and wear. The bearings are externally sealed with rubber or metal rings to prevent dust ingress and internally filled with high-temperature grease to ensure smooth operation. The overall design of the assembly ensures uninterrupted power transmission during turns or on uneven roads. If improperly maintained, such as insufficient lubrication, the needle roller bearings may produce abnormal noises or seize, increasing the risk of drive failure. I recommend checking the grease condition every 10,000 kilometers, replenishing it promptly, and opting for genuine parts to extend service life.
