Rotating flexible shaft supporting tube with supporting vane having Y-shaped section

Abstract

The invention relates to a rotating flexible shaft support tube. According to the technical proposal provided by the invention, the rotating flexible shaft support tube with a support blade provided with a Y-shaped cross-section comprises an inner tube body and three or more support blades which are integrally arranged on the outer wall surface of the inner tube body; the support blades extend onthe outer wall surface of the inner tube body along the length direction of the inner tube body; the bottom section of the support blade is a blade root part; the upper end of the blade root part is connected with two blade tip parts with an arc cross section and the blade tip part presents the shape that the thickness is gradually decreased from the bottom end part to the top end part thereof; two blade tip parts which are positioned at the top end part of one blade root part are connected with the blade root part into a whole; and two blade tip parts which are simultaneously positioned at the top end part of one blade root part form a support blade with a Y-shaped cross-section together with the blade root part. When in use, the support tube not only can prevent the occurrence of two-way heel rotating phenomenon, reduce vibration, and ensure comfortable operation, but also can avoid the over-clamping of the inner tube body and the rotating flexible shaft, and greatly prolong the service life; the support tube can be replaced easily, and the cost is reduced.

Description

technical field [0001] The invention relates to a rotating flexible shaft support tube with Y-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

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