RU1832170C - V-belt drive - Google Patents

Abstract

Usage: mechanical engineering, as an element of the drives of various machines and mechanisms, providing rotation of the driven shaft with variable angular velocity. SUMMARY OF THE INVENTION: A belt drive comprises driving (1) and driven (2) pulleys; a V-belt (3) covering them, a spring-loaded tension roller (4). The driven pulley (2) is made in the form of spring-loaded two conical disks with hubs. The hubs are arranged on the shaft with the possibility of reciprocating movement by means of a spline connection. End surfaces a and 6 of the hubs are profiled and contact with rollers rotatably disposed on axles. 2 ill.

Description

rig.1

The invention relates to mechanical engineering and may find application as an element of drives of various machines and mechanisms for rotating a driven shaft with a variable angular velocity: vibratory machines, machines for processing fibrous and bulk materials, etc.

The purpose of the invention is to increase durability and reliability.

Fig. 1 is a diagram of a V-belt transmission; in FIG. 2 is a view A in FIG.

1.

The V-belt transmission contains pulleys mounted on shafts 1 and 2, driving 3 and driven 4, covering the V-belt 5 and the tension roller 6 for interaction with the V-belt 5. The transmission is equipped with rollers 7 and 8 mounted on the axes 9 and 10 s possibility of rotation. The driven pulley 4 is made in the form of conical disks 11 and 12 spring-loaded relative to each other with hubs 13 and 14 mounted on the shaft 15 with the possibility of axial reciprocating. displacement.

The ends a and b of the hubs 13 and 14 are profiled to interact with the rollers 7 and 8, and the tension roller b is spring-loaded to the V-belt 5.

V-belt transmission works as follows.

The drive pulley 3 through the V-belt 5 reports rotation of the driven pulley 4.

In this case, the rollers 7 and 8, rolling respectively at the ends a and b of the hubs 13 and

0

14, the conical disks 11 and 12 are reciprocated along the shaft 15, spring-loaded relative to each other, thereby cyclically changing the calculated diameter of the driven pulley 4 depending on the profile shape of the end face a and b of the hubs 13 and 14, which in turn leads to a change in the transmission V-belt drive ratios. In this case, the constant tension of the V-belt 5 is provided by the tension roller 6. Such a design of the driven pulley provides increased durability and reliability of the V-belt transmission due to the elimination of bending deformations and wear of the belt 5 which results from its slipping on the surface of the drive pulley inherent famous belt. gears.

Claims (1)

SUMMARY OF THE INVENTION A V-belt transmission, comprising driving and driven pulleys mounted on shafts, covering a V-belt and a tension roller for interacting with a V-belt, characterized in that, in order to increase durability and reliability, it is provided with rollers mounted on an axle with rotatable, the driven pulley is made in the form of conical disks spring-loaded relative to each other with hubs mounted on the shaft with the possibility of axial reciprocating movement, the ends of the hubs are profiled are designed to interact with the rollers, and the tension roller is spring-loaded to the V-belt. 0 5 0 5 Buff a