Triangle belt drive device

Abstract

The invention discloses a triangle belt drive device. The triangle belt drive device comprises two belt wheels and four compression rollers, wherein the two belt wheels are not located on a same plane and connected through an inclined triangle belt, the two compression rollers in one set which are vertically arranged and the two compression rollers in the other set which are vertically arranged are arranged at the positions close to the belt wheels respectively, and the outer circumferential surfaces of the compression rollers abut against the two sides of the triangle belt respectively; the compression rollers push the triangle belt to make the distance H between the centers of the compression rollers and the centers of the radial symmetry planes of the belt wheels equal to R+1 / 2B. The triangle belt which comes in and goes out of the belt wheels is pushed to the position where the dip angle between the triangle belt and the belt wheels is 0 degree, and therefore sliding friction losses between the triangle belt and the side faces of wheel grooves of the belt wheels are reduced. Meanwhile, due to the fact that rolling friction exists between the compression rollers and the side face of the triangle belt, the friction losses between the compression rollers and the triangle belt are reduced, and the service life of the triangle belt is greatly prolonged.

Description

technical field [0001] The invention relates to a belt transmission device, in particular to a V-belt transmission device not on one plane, and belongs to the technical field of mechanical transmission. Background technique [0002] The V-belt is one of the parts that are easy to wear in the belt transmission. Usually, the two pulleys connected by the V-belt are on the same plane, but when the two pulleys are not on the same plane, the V-belt must be set obliquely, so that , There is an inclination angle between the V-belt and the pulley, and the inclination should generally not exceed 5°, otherwise the friction between the V-belt and the pulley will increase, causing severe wear of the V-belt and greatly reducing the service life of the V-belt. In view of the above situation, at present, the inclination angle of the V-belt is generally adjusted by double pulley adjustment or by sliding the spline sleeve up and down, but these two methods are complex in structure and high in...

AI Technical Summary

Problems solved by technology

[0002] The V-belt is one of the parts that are easy to wear in the belt transmission. Usually, the two pulleys connected by the V-belt are on the same plane, but when the two pulleys are not on the same plane, the V-belt must be set obliquely, so that , There is an inclination angle between the V-belt and the pulley, and the inclination should generally not exceed 5°, otherwise the friction between the V-belt and the pulley will increase, resulting in serious wear of the V-belt, thus greatly reducing the service life of the V-belt

In view of the above situation, at present, the inclination angle of the V-belt is generally adjusted by double pulley adjustment or by sliding the spline sleeve up and down, but these two methods are complex in structure and high in cost.

Images