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Eccentric swing type speed reducer

A deceleration device, eccentric swing technology, applied in the direction of transmission, gear transmission, transmission parts, etc., to achieve the effect of inhibiting peeling

Pending Publication Date: 2020-08-21
SUMITOMO HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The technology disclosed in Patent Document 1 does not involve the technology to solve this problem, so there is room for improvement

Method used

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  • Eccentric swing type speed reducer
  • Eccentric swing type speed reducer
  • Eccentric swing type speed reducer

Examples

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Embodiment Construction

[0017] Hereinafter, an example of the embodiment of the present invention will be described. The same symbols are assigned to the same constituent elements and repeated explanations are omitted. In each drawing, for convenience of description, some components are appropriately omitted, or their dimensions are appropriately enlarged or reduced. Regarding the drawings, view them in conjunction with the orientation of the symbols.

[0018] figure 1 It is a side sectional view of the reduction gear transmission 10 according to the embodiment, figure 2 Its front section view. figure 2 shows the rotational phase of the external gear 16 and figure 1 different diagrams. The speed reduction device 10 is an eccentric oscillating type speed reduction device in which one of the internal gear 20 and the external gear 16 is rotated by itself by swinging the external gear 16 meshing with the internal gear 20 , and output from the output member 50 to the driven device. The resulting r...

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Abstract

The invention provides a technology capable of suppressing peeling on a rolling surface of an eccentric body bearing. An eccentric swing type speed reducer is provided with: an internal gear; an outergear which is meshed with the inner gear; an eccentric body for swinging the external gear; an eccentric body bearing disposed between the eccentric body and the external gear, wherein the eccentricbody bearing has a roller (60), the roller (60) has an intermediate portion (70) in the axial direction of the roller and a convex surface portion (72) having an outer diameter gradually decreasing from the intermediate portion (70) toward an end portion in the axial direction of the roller, and the convex peak portion height Rpk of the convex surface portion (72) is 0.063 [mu] m or less.

Description

[0001] This application claims priority based on Japanese Patent Application No. 2019-023210 filed on February 13, 2019. The entire contents of this Japanese application are incorporated herein by reference. technical field [0002] The invention relates to an eccentric swing speed reducer. Background technique [0003] Patent Document 1 discloses an eccentric oscillating reduction gear including an internal gear, an external gear meshing with the internal gear, an eccentric body that oscillates the external gear, and an eccentric body bearing disposed between the eccentric body and the external gear. This eccentric body bearing includes rollers. [0004] Patent Document 1: Japanese Unexamined Patent Publication No. 2011-7296 [0005] As a result of studying the technology disclosed in Patent Document 1, the present inventors found the following problems. Rollers of eccentric body bearings may be provided with convex portions. At this time, peeling may occur on the rolli...

Claims

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Application Information

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IPC IPC(8): F16H37/12F16H57/023F16H57/021F16H57/08
CPCF16H37/122F16H57/023F16H57/021F16H57/08F16H1/32F16C3/22F16C19/163F16C19/06F16C19/546F16C2361/65F16C33/36F16H2001/325
Inventor 阿部瞬为永淳
Owner SUMITOMO HEAVY IND LTD
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