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Connection structure of shaft

A technology of connecting structure and shaft end, applied in the direction of coupling, rigid shaft coupling, clutch, etc., can solve the problems of falling off, clamping fasteners slipping, clamping fasteners easy to slide, etc., to prevent falling off. Effect

Pending Publication Date: 2021-05-28
SUMITOMO HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] With this type of shaft connection structure, the clamping fastener is extremely easy to slip on the first shaft before the tightening is completed.
[0008] Therefore, in the process of fastening the first shaft and the second shaft, there is a problem that the clamping fastener slips (falls off) from the shaft end of the first shaft.

Method used

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  • Connection structure of shaft
  • Connection structure of shaft
  • Connection structure of shaft

Examples

Experimental program
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Embodiment Construction

[0021] Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings.

[0022] figure 1 It is a cross-sectional view showing a coupling structure of a shaft according to an example of an embodiment of the present invention, figure 2 is equipped with figure 1 The overall schematic cross-sectional view of the reduction gear of the first shaft in the connection structure, image 3 Viewed from the motor side figure 2 End view of the reduction gear unit.

[0023] The shaft connection structure has: the input shaft (first shaft) 12 of the reduction gear 10 having a hollow portion 12A; the motor shaft 14 (second shaft) inserted into the input shaft 12 The hollow portion 12A; and the clamping fastener 16 are disposed outside the hollow portion 12A of the input shaft 12 and fasten the input shaft 12 and the motor shaft 14 by frictional force.

[0024] Furthermore, an O-ring 18 for preventing the clamping fastener 16 ...

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PUM

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Abstract

The invention provides a connection structure of a shaft to prevent a clamp fastening tool from falling off a first shaft. The connection structure of a shaft includes an input shaft, namely a first shaft (12) having a hollow section (12A); a motor shaft, namely a second shaft (14) inserted into the hollow section (12A) of the input shaft (12); and a clamp fastening tool (16) provided outside the hollow section (12A) of the input shaft (12) and fastening the input shaft (12) and the motor shaft (14) together by friction force. An O-ring (18) for preventing fall of the clamp fastening tool (16) is provided closer to a shift end (12B) that the clamp fastening tool (16) of the input shaft (12).

Description

[0001] This application is a divisional application of the Chinese invention patent application with the application number 201410073687.1, the application date is February 28, 2014, and the invention name is "shaft connection structure". [0002] This application claims priority based on Japanese Patent Application No. 2013-075336 filed on March 29, 2013. The entire content of this application is incorporated in this specification by reference. technical field [0003] The invention relates to a connecting structure of shafts. Background technique [0004] Patent Document 1 discloses a coupling structure using a shaft that clamps fasteners. [0005] The connection structure has: a first shaft having a hollow portion; a second shaft inserted into the hollow portion of the first shaft; and a clamping fastener disposed outside the hollow portion of the first shaft and fastened by frictional force 1st axis and 2nd axis. [0006] Patent Document 1: Japanese Patent Laid-Open N...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D1/04
CPCF16D1/04F16D1/08F16D2300/12
Inventor 西部慎一光藤荣西谷祐一石川哲三
Owner SUMITOMO HEAVY IND LTD