轉(zhuǎn)動手輪帶動調(diào)速凸輪改變角向位置的同時，調(diào)速凸輪的端面曲線經(jīng)平面彈子夾和固定凸輪的端面曲線作用，使調(diào)速凸輪產(chǎn)生軸向移動，從而均勻改變調(diào)速凸輪和固定環(huán)之間的間隔，使錐度行星摩擦輪產(chǎn)生徑向移動。最后均勻地改變了行星摩擦輪與主動輪、壓盤及固定環(huán)、調(diào)速凸輪摩擦處的工作半徑，實現(xiàn)穩(wěn)定的無級變速。

The continuously variable transmission mainly consists of a compressed driving wheel device, a friction transmission mechanism, and a speed control mechanism. The MB series planetary friction mechanical continuously variable transmission mainly consists of a compressed active device, a friction transmission mechanism, and a speed control mechanism. The tapered driving wheel and pressure plate are compressed by a set of disc springs, and the input shaft is keyed to the driving wheel to form a compressed driving device. A set of planetary friction wheels with taper are sandwiched on the inner side between the compressed driving wheel and the pressure plate, and on the outer side between the fixed ring with taper and the speed control cam, forming a friction pair; When the compressed active device operates, the friction wheel performs pure rolling. Due to the fixed ring and speed control cam not moving, the friction wheel rotates while rotating, and drives the planetary carrier to rotate through the central axis and slider bearings of the planetary friction wheel.

Features:

1. High strength: When subjected to impact loads or machine reversal, this machine has reliable performance and can rotate accurately.
2. Wide speed range: The gear ratio is 1:5, which means the output speed can vary freely between 1:45 and 1:7.25.
3. High speed regulation accuracy: The speed regulation accuracy is 1-0.5 revolutions per minute.
4. Stable performance: The transmission components of this machine have undergone special heat treatment, precision machining of friction parts, good lubrication, smooth operation, low noise, and long service life.
5. Coaxial structure: The input shaft and output shaft rotate in the same direction, with small volume and light weight.
6. Strong combination ability: This machine can be combined with various types of reducers to achieve low speed and high torque variable speed effects.
7. The set speed remains constant when the load is allowed.
8. Fully sealed, suitable for damp, dusty, and slightly corrosive working environments.
9. High strength, durable, safe and reliable; Speed regulation is extremely simple and convenient.
10. It can operate continuously and operate in both positive and negative directions, with smooth operation, stable performance, and environmental protection.
11. The body structure is compact and takes up little installation space. It is made of high-quality aluminum alloy die-casting, which will never rust.

The principle of continuously variable transmission:

While rotating the handwheel to drive the speed control cam to change its angular position, the end face curve of the speed control cam is subjected to the action of the plane spring clamp and the end face curve of the fixed cam, causing the speed control cam to move axially, thereby uniformly changing the spacing between the speed control cam and the fixed ring, and causing the tapered planetary friction wheel to move radially. Finally, the working radius at the friction point between the planetary friction wheel and the driving wheel, pressure plate and fixed ring, and speed control cam was uniformly changed to achieve stable and continuously variable speed.