DESIGN GUIDELINES FOR SYNCHRONOUS BELT DRIVES？- Jiangxi Kangqi Industrial Co., Ltd

DESIGN GUIDELINES FOR SYNCHRONOUS BELT DRIVES？

I. Design Guidelines for Synchronous Belt Transmission Synchronous belt transmission is.

The teeth of the belt mesh sequentially with the teeth of the pulley to transmit power to achieve the purpose of synchronous transmission. Therefore, when a synchronous belt transmits torque, the belt will be subjected to tensile force, the teeth will be subjected to shear, and the working surfaces of the teeth will be abraded during the process of entering and exiting the mesh with the teeth of the pulley.

Therefore, the main forms of failure of the synchronous belt are as follows: (1) The synchronous belt will be worn out during the process of entering and exiting the meshing process with wheel teeth.

(1) the fatigue fracture of the synchronous belt-carrying rope (also known as the skeleton rope); (2) the fatigue fracture of the belt-carrying rope (also known as the skeleton rope).

(2) Shear rupture of the belt teeth.

(3) The working surface of the belt teeth is worn out and loses its original shape. According to the test analysis, when the synchronous belt is around the pulley, in the encompassing arc, the number of teeth of the belt teeth and pulley teeth meshing teeth.2a thousand 6

The shear strength of the teeth is greater than the tensile strength of the belt. At the same time, the wear resistance of the belt teeth is greatly improved by the installation of a nylon wrapping layer adhering to the working surface of the teeth. Therefore, under normal operating conditions, the main form of failure of synchronous belts is fatigue fracture of the belt under variable tensile force. Synchronous belt drives are designed according to the tensile strength of the belt as a design criterion.

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The wide-angle belt is a new type of industrial transmission belt developed on the basis of the general industrial V-belt technology.

They are all driven by the friction diagram on both sides of the belt. The wedge angle of the general V-belt is 40° and the wedge angle

of the wide-angle transmission belt is 60°.

According to the principle of transmission dynamics, as the wedge angle of the wide-angle belt increases, the area supported by the

two transmission sides naturally increases, thus giving rise to the following advantages over the general V-belt:

1. The load of the wide-angle belt is evenly distributed and the wear resistance is improved.

2. The contact area between the belt and the pulley increases and the transmission force is increased.

3. It improves the concave deformation of the drive belt core and strengthens the drive characteristics.

4. After the wide-angle belt is installed and used, the problem of belt tension drop is improved.

It is the above-mentioned advantages of the wide-angle belt that are widely used and affirmed by the precision machinery industry.

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The surface adhesive

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Cloth layer core

The cloth layer is composed of natural fiber or chemical fiber alone or a combination of the two, has the same quality after single-step treatment by a mature process, And has good adhesion with rubber.
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The adhesive layer is very important for the adhesive force between the layers of the core of the conveyor belt that is repeatedly flexed. Especially for high-tension conveyor belts, a layer of adhesive with less buckling stress and less fatigue due to internal stress must be used.

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High speed and stability, high tensile strength, and low elongation.

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Scope of application:

Sanitary products industry, glass machinery, sealing machine, etc.
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Anti-sticking, high friction coefficient, and high-temperature resistance.

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All parts of thickness and strength are absolutely uniform.

It has a good linear operation.

High flexibility can be used for small wheel diameters.

It can maintain flatness and non-deformability under working pressure.

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Synchronous Pulley

Scope of application:

Apply to each field of the synchronous-driven device system.
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Scope of application:

It is suitable for outdoor transmission equipment, transportation equipment, medical equipment, electric tools, household appliances, and sports equipment.
Characteristics:

1. The transmission power of the ribbed belt is higher than that of an ordinary V-belt by 30 % when the space is the same.

2. The transmission system of the ribbed belt has a compact structure, and under the same transmission power, the space occupied by

the transmission device is 25 % smaller than that of the common V-belt.

3. The ribbed belt is thin and flexible and is suitable for transmission with a small pulley diameter and high-speed transmission, with belt

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