There are two types of synchronous belt teeth: trapezoidal teeth and arc teeth:
1. Arc tooth type:
1. Arc tooth synchronous belt: HTD3M HTD5M HTD8M HTD14M HTD20M, arc tooth synchronous belt drive has high driving precision and low noise.
2. 8YU synchronous belt: It is also a semi-circular arc tooth synchronous belt, suitable for high-speed transmission, high torque, and the transmission speed can reach 1000rpm/min. It is generally used in medical equipment. ?
3. Modified arc tooth synchronous belt: RPP5M RPP8M. The tooth type is rabbit tooth type, which has good turning effect and is suitable for high-speed transmission. Generally used in robotic equipment.
The meaning of arc tooth synchronous belt parameters, for example, HTD 1040-8M-30 means:
1. Pitch line length: 1040 mm;
2. Teeth Shape parameter model: HTD8M;
3. Width: 30mm.
2. Trapezoidal tooth types:
Trapezoidal tooth synchronous belts are divided into: the lightest MXL, ultra-light XXL (not widely used in the market), extra-light XL, light-weight L, heavy-duty H, extra heavy duty XH, super heavy duty XXH, there are seven types, these are widely used in the market.
Special trapezoidal tooth synchronous belts are divided into: the lightest T2.5, the lightest T5, the heavy T10, the heaviest T20. Now there are AT5, AT10, AT20, and AT-type tooth types on the market. The difference from the T-type is that the bottom is arc-shaped teeth, while the T-type has full trapezoidal teeth. Compared with the AT, the transmission will be more precise, the transmission gap will be smaller, and of course the noise will be smaller. ?
The meaning of parameters of trapezoidal tooth synchronous belt, for example, 120XL037 means:
1. Pitch line length: 12*25.4=304.8mm;
2. Tooth shape Parameter model: XL;
3. Width: 0.37*25.4=9.4mm.
Expansion information:
The difference between trapezoidal tooth synchronous belt and arc tooth synchronous belt:
1) The polygon effect of arc tooth synchronous belt is much smaller, because The belt teeth and gear teeth mesh better, so the transmission accuracy is also higher.
2) The low-speed load-bearing capacity of arc teeth is larger.
3) Generally speaking, arc-shaped teeth are more expensive.
Therefore, trapezoidal teeth have a polygonal effect, and arc-shaped teeth have better overall performance.
Reference materials:
Baidu Encyclopedia--synchronous belt