A tensioning pulley that changes the tightness of the belt in situ

Abstract

The invention discloses a tensioning wheel capable of changing the elastic degree of a belt at an original position. The tensioning wheel comprises a drive wheel body, a driven wheel body, a tensioning wheel body and the belt. The left and right ends of the belt are sleeved with a corresponding belt mounting groove in the driven wheel body and a corresponding belt mounting groove in the drive wheel body respectively. According to the tensioning wheel, the tensioning wheel body movably sleeves a rotation rod and is limited on the rotation rod through limit circular plates of the two sides, thetensioning wheel body and the rotation rod can keep relative rotation, and it is guaranteed that when the belt passes through the tensioning wheel body, the tensioning wheel body can rotate, and the belt smoothly passes through the tensioning wheel body; since the tensioning wheel body is of a circular-truncated-cone-shaped structure, when the tensioning wheel body moves front and back, the aim ofadjusting the elastic degree of the belt is achieved, the elastic degree of the tensioning wheel body can be changed at the original position, the tensioning wheel is conveniently adjusted and stablyfixed, and the situation is avoided that when the elastic degree is adjusted, the position of the tensioning wheel is freely moved, and accordingly the tensioning wheel is inconveniently fixed, or the space is wasted.

Description

technical field [0001] The invention relates to the technical field of mechanical transmission structures, in particular to a tension pulley for changing the tightness of a belt at an original position. Background technique [0002] The tension pulley is a follower pulley pressed on the belt to change the wrap angle of the pulley or to control the tension of the belt. It is a tensioning device for belt drive. When the center distance of the belt cannot be adjusted, the tensioning wheel can be used to tension the belt. However, this tensioning wheel still has the following disadvantages in the actual use process: [0003] 1. In the prior art, the tensioning wheel is often fixed at a fixed position to tension the belt, and the tightness of the belt cannot be changed, which is inconvenient to use; [0004] 2. In the prior art, the tensioning wheel is inconvenient to install and fix, and cannot be adjusted during use. Contents of the invention [0005] The purpose of the pre...

AI Technical Summary

Problems solved by technology

[0003] 1. In the prior art, the tensioning wheel is often fixed at a fixed position to tension the belt, and the tightness of the belt cannot be changed, which is inconvenient to use;

[0004] 2. In the prior art, the tensioning wheel is inconvenient to install and fix, and cannot be adjusted during use

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