Combined gear and ring riveting method thereof

Abstract

The invention discloses a combined gear and a ring riveting method thereof. The combined gear comprises a piece tooth and a shaft tooth, wherein the shaft tooth is connected with the piece tooth through interference fit; the shaft tooth comprises a shaft part, gear teeth and tooth grooves, wherein one end of the shaft tooth is provided with a plurality of gear teeth, the tooth grooves are formed in the axial direction of the shaft tooth and are positioned between two adjacent gear teeth, the shaft part is inserted into a shaft hole of the piece tooth, matching parts which are positioned between two adjacent tooth grooves are arranged on the shaft part, and the matching parts make contact with the inner wall of the shaft hole of the piece tooth; and a riveting hole is formed in the position, on the periphery of the shaft part, of the piece tooth, the parts, corresponding to the riveting hole, of the matching parts extend towards the tooth grooves on the two sides to form extension parts, and the extension parts abut against the inner wall of the shaft hole of the piece tooth. By increasing the contact area of the matching position between the piece tooth and the shaft tooth, the purpose of increasing the axial sliding force is achieved, and the problem of the matching position slip failure of the combined gear under the condition of stress is solved.

Description

technical field [0001] The invention relates to the technical field of gear processing, in particular to a combined gear and a ring riveting method thereof. Background technique [0002] The gear combination currently used in the industry is an interference fit, which is limited by the outer diameter of the shaft tooth pitch circle, and the optional range of the fit shaft and hole is very small (such as Figure 6 and Figure 7 As shown), the tolerable circumferential torque is relatively small, and it has great limitations in the occasions with large torque output. In the case of force use, the phenomenon of slipping and failure of the mating position will occur, so that the combined gear cannot work normally. Work. Contents of the invention [0003] In order to solve the above problems, the present invention provides a combination gear, which increases the contact area of ​​the fitting position between the blade teeth and the shaft teeth by performing ring riveting on th...

AI Technical Summary

Problems solved by technology

[0002] The gear combination currently used in the industry is an interference fit, which is limited by the outer diameter of the shaft tooth pitch circle, and the optional range of the fit shaft and hole is very small (such as Image 6 and Figure 7 As shown), the tolerable circumferential torque is relatively small, and it has great limitations in the occasions with large torque output. In the case of force use, the phenomenon of slipping and failure of the mating position will occur, so that the combined gear cannot work normally. Work

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