Rotating flexible axle support pipe having support blade with S-shaped section

Abstract

The invention relates to a rotating flexible shaft support tube; according to the technical proposal, the rotating flexible shaft support tube which has supporting blades with S-shaped sections comprises an inner tube body and three or more supporting blades which are arranged integrally on the outer wall surface of the inner tube body; the supporting blades extend along the length direction of the inner tube body on the outer wall surface of the inner tube body; the sections of the supporting blades take the S shape; the shape of the supporting blades is reduced gradually from the blade root parts to the blade tip parts in thickness; and the blade root parts are intersected with the outer wall of the inner tube body at acute angles. When in use, the support tube can not only prevent the occurrence of rotating phenomenon, reduces the vibration and causes the operation to be comfortable, but also can avoid the jamming of the inner tube body and the rotating flexible shaft, greatly prolongs the service life; and the replacement is simple and the cost is reduced.

Description

technical field [0001] The invention relates to a rotating flexible shaft support tube with S-shaped support blades in section. Background technique [0002] In lawn mowers and scarifiers of plant protection machinery, support tubes must be used to support the rotating flexible shaft. When in use, the support tubes are inserted into the metal outer tube. At present, a general support tube is mainly composed of an inner tube body and support vanes fixedly arranged on the outer wall of the inner tube body. The radial directions of the support vanes and the inner tube body are consistent, and the top and bottom ends of the support vanes have uniform thickness. During installation, in order to ensure the stable insertion of the support blades in the metal outer tube, the distance between the outer end of the support blades and the center of the inner tube body is slightly larger than the inner diameter of the metal outer tube, so that the inner tube body in the installed support...

AI Technical Summary

Problems solved by technology

If there is a gap between the supporting blade and the inner wall of the metal outer tube, the jamming phenomenon between the supporting blade and the metal outer tube can be achieved, but the supporting tube is prone to co-rotation with the rotating flexible shaft, and the outer end of the supporting blade constantly rubs against the inner wall of the metal outer tube , generate vibration, reduce operating comfort, and emit huge noise pollution, which is not conducive to environmental protection requirements

Images