According to China's data. Com, steel chain and steel belt in automobile cvt gearbox are compared. From the actual performance, there is no doubt that steel chain CVT is relatively durable and has a longer service life. Steel belt cvt is usually suitable for small torque engines, while steel chain cvt is usually used for large torque engines.
Steel belt cvt is supported by two embedded steel belts, and hundreds of steel plates are clamped on metal belts. The steel belt with this push rod structure can only transmit power in a "push" way, and the thrust is formed by using the hardness of the material between the push rods. The push rod has little deformation under external force. When power is transmitted, the driving cone wheel presses the whole side of the steel belt to form static friction, and the driving cone wheel drives the driven cone wheel to rotate through the steel belt.
Steel chain cvt is obviously different from steel belt in structure. The chain does not directly contact with the helical gear, but realizes torque transmission by pressing the rocker pin in the middle. Structurally, the chain consists of two bundles of annular steel plates and pull rings, and each bundle of steel belts consists of 12 high-tension thin steel plates. Patent T702 high-strength steel is inserted into each group of steel plates to form a rocker pin for connection. This structure of the chain can only transmit power by pulling, and the transmission cone wheel presses the "rocker pin" of the chain to form static friction and drive the chain to transmit torque.