Design Of New Ordinary V-belt CVT

The belt-type continuously variable transmission (CVT) has been widely used in the mechanics and the fields of petroleum and automobiles nowadays. To be exact, the rubber V-belt CVT is adopted for the mechanics and petroleum, while the metal CVT is used for automatic automobile. The working principle of CVT is mainly based on the technology of the pressed belt type CVT, which is of abroad technology patent. The main problem involves (1) the likely wear of rubber V belt, the serious deformation from heat, the short service life and the reduced capacity of carrying. (2) the high cost of metal belt. (3) The main belts and auxiliary belts are not in the same working horizon when regulating speed. (4) The calculation on carrying capacity is beyond the format. (5) The pulley sleeve is in the form of curve, and the cost of production is too high.By careful analysis, it proves to reduce the wear of belt and avoid disalignment of pulleys to a large extent by adopting the parted pulleys and unique mood to vary speed. The study work has been completed as follows:1. It proves that this new type of CVT can meet the driving requirement by analyzing the working principle of CVT with parted pulleys and main functions of each component.2. The dimension of main components of CVT with parted pulleys has been designed in fully compliance with the requirement of design parameters.3. The design plan has been optimized and the best parameters of construction of CVT with parted pulleys has been determined by the stress analysis, with the result that the parted block can change the working diameter by means of moving radially.The following achievement has been made:1. The parted pulley construction has been designed in the new way.2. The construction is simple, the cost is low and the application is wide.3. The pressing force acting on the side of transmission belt is eliminated when regulating speed, hereby, the wear is greatly reduced.4. No similar belt-type CVT has been studied in our country. Therefore, it is possible to obtain private intellectual property right.