Title:
LARGE CONTACT RATIO, INNER ENGAGEMENT CYCLOIDAL GEAR STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2017/118054
Kind Code:
A1
Abstract:
A large contact ratio, inner engagement cycloidal gear structure, comprising an inner cycloidal gear (1) and an outer cycloidal gear (2) disposed inside the inner cycloidal gear (1) and configured to engage with the inner cycloidal gear (1), wherein a line of action between the inner cycloidal gear (1) and the outer cycloidal gear (2) forms an arc. Assuming the radius of the arc of the line of action to be r, the pitch circle radius of the inner cycloidal gear (1) to be r1, and the pitch circle radius of the outer cycloidal gear (2) to be r2, then: r1 > r > r2. On performing a pure rolling movement with a line of action on the pitch circle of the inner cycloidal gear (1) and the pitch circle of the outer cycloidal gear (2) respectively, a point on the line of action forms tooth top profiles of the two gears respectively. The gear structure, in transmission, has multiple pairs of teeth engaging simultaneously, with a small pressure angle and high bearing capacity. The root portions of gear teeth are not substantially involved in engagement.
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Inventors:
JIA MENG (CN)
Application Number:
PCT/CN2016/097113
Publication Date:
July 13, 2017
Filing Date:
August 29, 2016
Export Citation:
Assignee:
JIA MENG (CN)
International Classes:
F16H55/17
Foreign References:
| CN105508521A | 2016-04-20 | |||
| CN205479155U | 2016-08-17 | |||
| CN105202151A | 2015-12-30 | |||
| CN103727204A | 2014-04-16 | |||
| CN104712555A | 2015-06-17 | |||
| CN105221704A | 2016-01-06 | |||
| US3946621A | 1976-03-30 |
Attorney, Agent or Firm:
BEI&OCEAN (CN)
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