The synchronous belt transmission transmits power through the mutual occlusion of the teeth of the pulley and the teeth of the synchronous belt, and the two teeth should be bitten together as well as possible to fully ensure the power transmission and service life, so the occlusion between the teeth must be matched.
Tooth profile classification of timing belts
Timing belts are available in a variety of tooth profiles with different characteristics. So what is the tooth profile of the timing belt? HTD arc tooth shape (general tooth shape), Omega tooth shape: This tooth shape is obtained by improving the HTD tooth shape. The groove at the top of the tooth can fully improve the airflow at the moment when the tooth and the tooth are occluded, greatly reduce the noise level of the synchronous belt during operation, and do not lose the power transmission ability of the tooth.
Selection of timing belt tooth shape: Timing belts with universal nature, HTD arc teeth, square teeth, T teeth and AT teeth are widely used in the market and are easy to obtain and replace. T-tooth, AT tooth and square tooth have high transmission accuracy, and are suitable for precision transmission and precision positioning transmission. The arc tooth used in general industrial transmission can meet the transmission requirements, and in the special transmission environment, the selection of the tooth shape of the synchronous belt can be comprehensively considered.
Trapezoidal tooth timing belt is divided into: the lightest MXL, ultra-light XXL (not widely used in the market at present), extra-light XL, light-duty L, heavy-duty H, extra-heavy XH, super-heavy XXH, a total of seven kinds, which are the most widely used in the market at present.
The timing belt with special tooth type is divided into: the lightest T2.5, the lightest T5, the heavy-duty T10, the heaviest T20, and there are AT5, AT10, AT20 on the market. The difference between the AT type tooth type and the T type is a circular arc tooth at the bottom, while the T type is a full trapezoidal tooth, which will be more precise than the AT transmission, the transmission gap is small, and of course the noise will be smaller.
Full arc tooth synchronous belt: HTD3M, HTD5M, HTD8M, HTD14M, HTD20M, arc tooth synchronous belt transmission accuracy is high, low noise.
Semi-circular arc tooth synchronous belt: semi-circular arc tooth synchronous belt is also known as high torque synchronous belt, the models are S2M, S3M, S4.5M, S5M, S8M, S14M, this tooth type of synchronous belt is high torque synchronous and high-precision synchronous belt, of course, the production accuracy is also high, the price is relatively expensive.
Precision arc tooth synchronous belt: 1.5GT, 2GT, 3GT, 5GT These kinds of synchronous belts are still very few domestic manufacturers, mainly imported, and the market is not used, generally used for high-precision transmission, imported equipment is common. These models are produced by the world's first rubber V-belt manufacturer, GATER manufacturers, and this type of belt is generally used in automatic control equipment.
8YU Synchronous Belt: It is also a semi-circular arc tooth synchronous belt, suitable for high-speed transmission, high torque, transmission speed up to 1000pm/min, generally used in medical equipment.
Multi-positive arc tooth synchronous belt: RPPSM, RPP8M tooth type is rabbit tooth type, good turning effect, suitable for high-speed transmission, generally used in manipulator equipment.
MXL, XL, L, H, XH, XX timing belts are currently the most widely used and can be produced from polyurethane and rafter
HTD3M, HTD5M, HTD8M, HID14M, HTD20M are widely used and can be produced from polyurethane and rubber
S2M, S3M, S4.5M, S8M, S14M, can be produced in a wide range of rafter materials
1.5GT, 2GT, 3GT, 5GT are not widely used (try to avoid using this model), rubber material can be used to produce rubber material
RPP5M and RPP8M are not widely used, and the ring belt is made of rubber material; The opening tape is made of urethane reduction material
Timing belts are divided into single-sided toothed synchronous belts and double-sided toothed synchronous belts
Double-sided timing belts with square teeth: DXL, DL, DH
Arc tooth double-sided tooth timing belt: 3M-DL, 5M-DL, 8M-DL, 14M-DL.