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Structure for supporting shaft and reduction apparatus

A technology of reduction gear and support structure, which is applied to the rigid brackets, bearing components, shafts and bearings of bearing components, can solve the problem of not being able to replace the output shaft, and achieve the effect of expanding the scope of utilization or conversion.

Active Publication Date: 2010-05-26
SUMITOMO HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, since there is no need to change parts other than the output shaft of the reducer, only the output shaft is replaced. Including the bearings that support the output shaft, the output shaft cannot be replaced unless it is disassembled

Method used

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  • Structure for supporting shaft and reduction apparatus
  • Structure for supporting shaft and reduction apparatus
  • Structure for supporting shaft and reduction apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings.

[0019] figure 1 It is a cross-sectional view of a speed reducer to which an example of a shaft support structure according to the present invention is applied.

[0020] The reduction gear G1 includes an input shaft 12, an output shaft 16, a reduction mechanism 14 including the input shaft 12 and the output shaft 16 and decelerating the rotation of the input shaft 12, a housing 18, a bearing 20, and first and second attaching and detaching mechanisms C1. , C2.

[0021] The input shaft 12 is connected to a motor (not shown) or the like through a joint not shown or the like. The input shaft 12 is integrated with the input flange 22 by press fitting. The flange portion 22A of the input flange 22 is fixed to the inner ring 26 of the first bearing B1 by bolts 24 . The first bearing B1 is a so-called crossed roller bearing, and its outer ring 28 ...

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PUM

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Abstract

The invention provides a structure for supporting shaft and reduction apparatus, wherein the shaft to be replaced can be easily replaced on its own. The structure for supporting shaft includes a casing, a second bearing having an inner ring, an outer ring, and rolling elements disposed between the inner ring and the outer ring, and an attachment member which detachably and directly attaches a shaft to the inner ring. The outer ring is supported by the casing, and the shaft is adapted to be able to be directly fixed to or removed from the inner ring by the attachment member in a state where the inner ring, outer ring and the rolling elements of the second bearing are assembled to the casing.

Description

technical field [0001] This application claims priority based on Japanese Patent Application No. 2008-251745 filed on September 29, 2008. The entire content of this application is incorporated in this specification by reference. [0002] The present invention relates to a shaft support structure and a speed reducer to which the shaft support structure is applied. Background technique [0003] Patent Document 1 discloses a reduction gear transmission having a two-stage reduction mechanism in a casing. In this disclosed example, the first stage of the two-stage reduction mechanism is an internal meshing planetary gear reduction mechanism, and the second stage is a bevel reduction mechanism. Among the bevel pinion gears and bevel gears constituting the bevel reduction mechanism in the subsequent stage, the bevel gear functions as an output gear. The output shaft supporting the output gear is supported by the housing via bearings. The output shaft is set as a hollow shaft ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C35/06F16H1/00F16C35/063F16C35/073F16H1/14F16H57/021
CPCF16H57/022F16H57/038F16H3/001Y10T74/19665Y10T74/2186F16H1/14F16H1/12
Inventor 田村光扩山本章
Owner SUMITOMO HEAVY IND LTD
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