Title:
HARMONIC GEAR DEVICE AND MANUFACTURING METHOD THEREFOR, JOINT DEVICE FOR ROBOT, AND GEAR COMPONENT
Document Type and Number:
WIPO Patent Application WO/2023/071232
Kind Code:
A1
Abstract:
A harmonic gear device (1), comprising a rigid internal gear (2), a flexible external gear (3), and a wave generator (4). The wave generator (4) has a non-circular cam (41), which is rotationally driven by taking a rotation axis as the center, and a bearing (42), which is fitted to an outer side of the cam. The harmonic gear device (1) makes the flexible external gear (3) deform as the cam (41) rotates, such that some external teeth (31) mesh with some internal teeth (21), thereby making the flexible external gear (3) carry out relative rotation relative to the rigid internal gear (2) according to the difference in the number of teeth between the flexible external gear and the rigid internal gear (2). A first region (R1) of an inner peripheral face (301) of the flexible external gear (3) that is located on the back side of the external teeth (31) has a surface roughness less than that of a second region (R2) apart from the first region (R1). Further provided are a manufacturing method for the harmonic gear device; a joint device for a robot, which device comprises the harmonic gear device; and a gear component serving as a flexible external gear of the harmonic gear device.
Inventors:
WANG GANG (JP)
LIN WENJIE (JP)
MINEGISHI KIYOJI (JP)
ISAJI TSUYOSHI (JP)
GUO ZIMING (JP)
LIN WENJIE (JP)
MINEGISHI KIYOJI (JP)
ISAJI TSUYOSHI (JP)
GUO ZIMING (JP)
Application Number:
PCT/CN2022/099489
Publication Date:
May 04, 2023
Filing Date:
June 17, 2022
Export Citation:
Assignee:
MIDEA GROUP CO LTD (CN)
GUANGDONG JIYA PRECISION MACHINERY TECH CO LTD (CN)
GD MIDEA AIR CONDITIONING EQUIPMENT CO LTD (CN)
GUANGDONG JIYA PRECISION MACHINERY TECH CO LTD (CN)
GD MIDEA AIR CONDITIONING EQUIPMENT CO LTD (CN)
International Classes:
F16H1/32; B23F19/00; B23P15/14
Foreign References:
| CN111684176A | 2020-09-18 | |||
| CN104864039A | 2015-08-26 | |||
| CN107662203A | 2018-02-06 | |||
| CN110871436A | 2020-03-10 | |||
| CN111911609A | 2020-11-10 | |||
| CN108687753A | 2018-10-23 | |||
| JP2018168950A | 2018-11-01 | |||
| JP2006029508A | 2006-02-02 |
Attorney, Agent or Firm:
CHINA PAT INTELLECTUAL PROPERTY OFFICE (CN)
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