The continuously variable transmission means that when we adjust the speed of the transmission, the speed can be fine-tuned within a certain speed range, that is, very small changes can occur. Unlike stepped, its speed is fixed, and each step is a fixed speed, while stepless is when there is no grid when turning the handle, that is, the change is continuous.
Although the continuously variable transmission has this very important advantage, everything in the world cannot be perfect. It has advantages and there must be disadvantages. The newly developed MB planetary friction type continuously variable transmission uses advanced domestic and foreign The technology is designed to overcome many of the shortcomings of various continuously variable transmissions. The main advantages are: small size, simple and compact structure, convenient operation, good constant power characteristics, strong carrying capacity, stable transmission and high efficiency, and continuously adjustable speed, which is especially suitable for occasions with changing process parameters.
Facts have proved that the machine has high sensitivity and reliability, and strong adaptability; it is easy to implement automatic control, remote control or tracking control on it. This machine can be widely used not only in light industry sectors such as food, paper, textile, printing, rubber, plastics, ceramics, pharmaceuticals, tanning, etc., but also in heavy industry sectors such as machine tools, petroleum, chemical, metallurgy, mining, and Transportation industry.
Structure and working principle of planetary friction type continuously variable transmission :
The planetary friction type continuously variable transmission is mainly composed of an electric motor, a friction transmission mechanism, a pressurizing device, and a pointer speed control mechanism. The working process of the friction transmission mechanism is: the sun gear and the pressure plate are driven by the input shaft, the friction pair composed of the constant wheel and the pressure ring is driven by the planetary gear, and the disc spring is pressed to generate friction force. The pressure device is composed of a set of disc springs, which exert axial force on the pressure plate and the sun gear. The working process of the speed control mechanism is: the hand wheel drives the adjusting screw, which causes the end cam to rotate relatively, thereby adjusting the position of the fixed wheel and the pressure ring, and then the planetary wheel and the sun wheel, the pressure plate and the constant wheel, the pressure ring friction At the working radius of the place, stepless speed change is realized. At the same time, the speed value is reflected on the indicator.
星摩擦式无级变速机具有以下特点: The planetary friction type continuously variable transmission has the following characteristics:
1. Stable performance: All transmission parts of this machine have been strictly processed, precisely processed and ground, with good contact and lubrication, stable operation, low noise, no additional axial force on the output shaft and input shaft, and long life.
2. High strength: When an impact load is applied or the machine is reversed, the machine can reliably and accurately rotate without recoil and has sufficient strength. Its output torque-speed characteristic curve has a hard characteristic.
3. Wide speed range: The output speed ratio can be arbitrarily changed from 1: 1.45 to 1: 7.25, so this machine is easy to combine with a reducer or a speed increaser to get an extremely low or high speed ratio.
4. High speed regulation accuracy: The speed regulation accuracy is 0.5 ～ 1 revolution, which is the only one among similar stepless speed reducers.
5. Strong combination ability: This machine can be combined with horizontal cycloid pin gear reducer, gear reducer, worm reducer and other reducers to achieve stepless speed change at low speed, so it has good adaptability.
Want to know more about CVT , please pay attention to the official website of Shanghai Yulong Reducer Co., Ltd. rubyrad.com !
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