1. Structural composition

Top glue, tensile body, bottom glue, and wrapping cloth

2. Section models: Y, Z, A, B, C, D, E

3. Basic parameters:

Section width bp, reference width bd, reference diameter dd, reference length Ld (referring to the value calculated based on the pulley reference diameter dd), etc

4. Marking:

Composed of section code and reference length, such as A1600 representing A-type V-belt, with a reference length of 1600mm

The material and structure of ordinary V-belt wheels

1. Materials

Cast iron: U300

V-belt wheel structure diagram

(a) Entity structure; (b) Web type; (c) Orifice plate; (d) Wheel type

The stress generated by the cross-section includes three parts:

1. Tensile stress generated by tension

2. Tensile stress generated by centrifugal force

3. Bending stress generated by bending

Stress distribution diagram of the belt

σmax=σ1+σb1+σC

As shown in the figure, the maximum stress on the belt occurs at the point where the tight edge of the belt enters the small pulley.