The fastening connection structure between the transmission part and the shaft

Abstract

The invention relates to a fastening connection structure between a transmission part and a shaft, which is characterized in that it includes a fan-shaped seam concentric with the inner hole on the transmission part, a straight seam connecting one end of the fan-shaped seam with the inner hole, and a fan-shaped seam at the other end A notch is formed on the edge of the fan-shaped slit, and a radial screw hole communicating with the outer ring of the transmission part is formed at the position of the notch, and a top screw or a screw is installed in the screw hole. The present invention adopts the above-mentioned fastening connection structure, and pushes the slit part of the transmission part to deviate radially along the shaft by tightening the top screw or screw, so that the inner hole of the transmission part forms surface contact with the shaft, and the transmission part is tightly held on the shaft. , to realize the fastening connection between the transmission part and the shaft. Compared with the existing fastening connection structure, this structure has the characteristics of simple structure, low manufacturing cost, high transmission stability, wide application range and guaranteed shaft strength.

Description

technical field [0001] The invention relates to a fastening connection structure between parts in mechanical equipment, in particular to a fastening connection structure between a transmission part and a shaft. Background technique [0002] At present, the transmission parts connected to the shaft in various mechanical equipment include gears, sprockets, synchronous pulleys, cams, rollers, pressure wheels, etc. The common fastening connection structures of such parts and shafts are as follows: ( 1) Connect with a flat key and use radial jackscrew for axial positioning; (2) Make the parts into a split structure or set a radial groove communicating with the shaft hole, lock the separated parts with fasteners, and pass the parts The elasticity of the upper shaft hole changes slightly to hold it tightly on the shaft; (3) Make a ring groove on the shaft hole of the part, and insert a movable ring with an opening in the ring groove. The outer ring of the movable ring is a tapered ...

AI Technical Summary

Problems solved by technology

The above-mentioned flat key connection structure is not limited by the structure of the parts, and has a wide range of applications, but it needs to mill keyways on the shaft, thereby reducing the strength of the shaft body; the second connection structure above, the surface contact between the parts and the shaft, And it does not damage the shaft body, so it is better than the flat key connection structure in terms of transmission stability and ensuring the strength of the shaft body, but the scope of application of this connection structure is limited, such as not suitable for gears, sprockets or synchronous pulleys, etc. The fastening connection; the above third connection structure has the characteristics of high transmission stability, ensuring the strength of the shaft body and wide application range, but the structure is more complicated and the production cost is high.

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