What are the main components of a continuously variable transmission?
1 Answers
The components of a continuously variable transmission: The transmission contains parallel shafts, an input shaft, a driving pulley shaft, a driven pulley shaft, and a main transmission shaft. The input shaft and driving pulley shaft are arranged in a straight line with the engine crankshaft, consisting of a sun gear, planetary gears, and a planetary carrier. More details are as follows: 1. The driving pulley shaft and driven pulley shaft are each composed of pulleys with movable and fixed wheel faces, connected by a steel belt. The driving pulley shaft includes the driving pulley, reverse brake, and forward clutch, while the driven pulley shaft includes the driven pulley, starting clutch, and intermediate driven gear integrated with the parking gear. The main transmission shaft consists of the main reducer driving gear and intermediate driven gear. 2. Working principle: The belt is wrapped around two conical pulleys, and the outer diameter of the pulleys is continuously varied by hydraulic pressure. During startup, the driving pulley diameter becomes the smallest, while the driven pulley becomes the largest, achieving a high transmission ratio. 3. As vehicle speed increases and various sensor signals change, the computer control system determines the hydraulic pressure controlling the two pulleys, continuously changing their diameters to achieve seamless shifting. Due to material limitations in the past, the belt between the conical pulleys could only withstand limited tension and torque, restricting its use to small-displacement motorcycles.
