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Eccentric oscillation gear device

A gear device, eccentric swing technology, applied in the direction of gear transmission, transmission, transmission parts, etc., can solve the problem of increasing size, and achieve the effect of reducing size

Active Publication Date: 2019-07-12
SUMITOMO HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, in the conventional eccentric oscillating type gear device, a large main bearing is used, so there is a problem that the overall size of the device becomes large.

Method used

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  • Eccentric oscillation gear device
  • Eccentric oscillation gear device
  • Eccentric oscillation gear device

Examples

Experimental program
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Embodiment Construction

[0013] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0014] figure 1 It is a cross-sectional view of the eccentric oscillating gear device according to the embodiment of the present invention. figure 2 is viewed from the axial figure 1 Diagram of the interior of an eccentric oscillating type gear unit. In this specification, the direction along the rotation axis O1 of the eccentric oscillating gear unit 1 is defined as the axial direction, the direction perpendicular to the rotation axis O1 is defined as the radial direction, and the direction rotating around the rotation axis O1 is defined as the circumferential direction. .

[0015] The eccentric oscillating gear device 1 is provided with: an eccentric body 14; an eccentric body shaft 12 having the eccentric body 14; an external gear 24 assembled on the outer periphery of the eccentric body 14 via an eccentric body bearing 18; and an internal gear 26 on wh...

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Abstract

The invention provides an eccentric oscillation gear device having a reduced size in the axial direction. An eccentric oscillation gear device (1) includes the housings (31,32) in which an inner gear(26) is arranged, an outer gear (24) internally engaged with the inner gear, an eccentric shaft (12) of an eccentric body (14) oscillating the outer gear, input bearings (40,42) supporting the eccentric body shaft, wheel carriers (33,34) arranged on the axial direction of the outer gear, and main bearings (36,38) which are arranged between the housing and the wheel carriers. In a cross section perpendicular to a circumferential direction, a cross sectional area of each of the main bearings (36,38) is configured to be smaller than a cross sectional area of each of the input bearings (40,42).

Description

[0001] This application claims priority based on Japanese Patent Application No. 2017-219559 filed on November 15, 2017. The entire contents of this Japanese application are incorporated herein by reference. technical field [0002] The present invention relates to an eccentric oscillating gear device. Background technique [0003] Patent Document 1 discloses an eccentric oscillating gear device including an internal gear, an external gear internally meshing with the internal gear, an eccentric body that oscillates the external gear, and a wheel carrier disposed on the axial side of the external gear. body. As shown in Patent Document 1, in a conventional eccentric oscillating gear device, an internal gear is provided in a housing, and a carrier body is rotatably supported by a main bearing with respect to the housing. [0004] Patent Document 1: Japanese Patent Application Laid-Open No. 07-248046 [0005] In conventional eccentric oscillating gear units, a large proporti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/32F16H57/021F16H57/023
CPCF16H1/32F16H57/021F16H57/023F16H2001/323F16H2001/325
Inventor 矶崎哲志
Owner SUMITOMO HEAVY IND LTD
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