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An eccentric swing type gear device

A technology of gear device and eccentric swing, which is applied in the direction of gear transmission device, transmission device, transmission device parts, etc., can solve the problem of shortening the service life of the gear device, and achieve the effect of prolonging the service life

Active Publication Date: 2018-08-28
SUMITOMO HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The gear unit disclosed in the aforementioned Patent Document 1 has a problem that if sufficient lubricant cannot be supplied to the vicinity of the eccentric body bearing, the life of the gear unit will be shortened.

Method used

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  • An eccentric swing type gear device
  • An eccentric swing type gear device
  • An eccentric swing type gear device

Examples

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Embodiment Construction

[0024] Hereinafter, examples of embodiments of the present invention will be described in detail with reference to the drawings.

[0025] figure 1 It is a cross-sectional view showing the overall structure of an eccentric oscillating gear device according to an example of an embodiment of the present invention.

[0026] This eccentric oscillating gear unit G1 includes a first external gear 11 and a second external gear 12 as oscillating gears. The crankshaft 14 oscillates the first external gear 11 and the second external gear 12 . The crankshaft 14 includes a first eccentric body 21 that oscillates the first external gear 11 and a second eccentric body 22 that oscillates the second external gear 12 . A first eccentric body bearing 31 is arranged between the first eccentric body 21 and the first external gear 11 . A second eccentric body bearing 32 is arranged between the second eccentric body 22 and the second external gear 12 .

[0027] The first external gear 11 and the...

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Abstract

The invention provides an eccentric swing type gear device which supplies sufficient lubricating agents to the vicinity of an eccentric body bearing, so that the service life of the gear device can befurther prolonged. The eccentric swing type gear device (G1) comprises swing gears (11, 12) and a crankshaft (14) making the swing gears swing. The eccentric swing type gear device (G1) is provided with a first gear (1) arranged on the crankshaft and a second gear (2) meshing the first gear. The crankshaft is provided with a first lubricating channel (81) arranged in the axial direction of the crankshaft and a second lubricating channel (82) communicating with the first lubricating channel, being open at the outer periphery (82A1, 82B1) of the crankshaft. The first gear has a third lubricating channel (83) formed from the outer peripheral side to the inner side of the first gear and the crankshaft has a fourth lubricating channel (84) communicating with the first lubricating channel (81)and the third lubricating channel (83).

Description

[0001] This application claims priority based on Japanese Patent Application No. 2017-028491 filed on February 17, 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. This gear unit includes an external gear that oscillates and an internal gear that internally meshes with the external gear. The gear unit outputs, as an output, the relative rotation between the external gear and the internal gear obtained by eccentrically oscillating the external gear. [0004] Therefore, this gear unit includes a crankshaft that oscillates and rotates the external gear. The crankshaft includes an eccentric body whose axis is eccentric with respect to the crankshaft, and the external gear is oscillated by an eccentric body bearing mounted on the outer periphery...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/32F16H57/04
CPCF16H1/32F16H57/043F16H2001/323F16H57/0426F16H57/0435F16H57/0479F16H2001/327
Inventor 峯岸清次
Owner SUMITOMO HEAVY IND LTD
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