Deceleration device

Abstract

The present invention provides a speed reducer capable of securing a degree of freedom in the speed reduction ratio of the speed reducer and capable of downsizing. This deceleration device has: external gear (130,132); internal gear (134), and external gear (130, 132) meshing; the first, the second flange body (152, 154), is arranged on external gear ( 130, 132) on both sides in the axial direction; and the first and second pin components (144A~144F, 146A~146F), from the opposite sides of the first and second flange bodies (152, 154) to the axial direction It is protrudingly set, runs through the external gears (130, 132), and is synchronized with the rotation components of the external gears (130, 132), wherein the first flange body (152) and the second flange body (154) are not in the 1. The positions of the second pin members ( 144A to 144F, 146A to 146F) are connected in the axial direction, but the positions other than the first and second pin members ( 144A to 144F, 146A to 146F) are connected in the axial direction.

Description

Technical field [0001] The invention relates to a deceleration device. Background technique [0002] Patent Document 1 discloses as Image 6 The reduction gear shown. [0003] The reduction gear 1 is provided with: external gears 2 and 3; an internal gear 4 which meshes with the external gears 2 and 3; the first and second flange bodies 5 and 6 are arranged on both axial sides of the external gears 2, 3; And the first and second pin members 5A, 6A. The first and second pin members 5A, 6A protrude in the axial direction from the first and second flange bodies 5, 6, respectively, and penetrate the pin holes 2A, 3A of the external gears 2, 3, respectively. A plurality of first and second pin members 5A, 6A are provided along the circumferential direction of the reduction gear 1 (in this example, only two are shown). Bolts 7, 8 are inserted into the first and second flange bodies 5, 6 and all the first and second pin parts 5A, 6A. The first flange body 5 and the second flange body 6 ...

AI Technical Summary

Problems solved by technology

At this time, the movable range of the first and second pin members 5A, 6A relative to the pin holes 2A, 3A is limited, and the swingable motion range of the external gears 2, 3 is limited.

As a result, the speed reducer 1 is difficult to perform speed reduction with a low reduction ratio requiring a wide swing range, and becomes a speed reducer that can only perform speed reduction with a high speed reduction ratio that can be realized within a narrow swing range, resulting in a change in the degree of freedom of the speed reduction ratio. Low

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