Title:
POWER TRANSMISSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/008438
Kind Code:
A1
Abstract:
Disclosed is a power transmission device wherein a first rotary shaft (6), a second rotary shaft (10), and an output shaft (16) are arranged in parallel within a casing (2); and a driving gear (14) provided in the second rotary shaft (10) meshes with a driven gear (19) of the output shaft (16). Furthermore, a clutch device (21) for transmitting the rotation obtained by combining the rotation of the first and second rotary shafts (6), (10) or the rotation of the second rotary shaft (10) to the output shaft (16), is provided. On the other hand, an intermediate gear (15) is provided in the second rotary shaft (10), and a counter gear (20) to mesh with the intermediate gear (15) is provided on the outer peripheral side of the first rotary shaft (6). A bearing device (23) is provided between the first rotary shaft (6) and the counter gear (20). The bearing device (23) is configured by combining four angular ball bearings (24), and is disposed at a position corresponding to the meshed portion between the counter gear (20) and the intermediate gear (15), in the axial direction of the first rotary shaft (6).
Inventors:
KURIHARA Takeshi (Tsuchiura Works Hitachi Construction Machinery Co., Ltd., 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
Application Number:
JP2011/065867
Publication Date:
January 19, 2012
Filing Date:
July 12, 2011
Export Citation:
Assignee:
Hitachi Construction Machinery Co., Ltd. (5-1 Koraku 2-chome, Bunkyo-ku Tokyo, 04, 〒1120004, JP)
日立建機株式会社 (〒04 東京都文京区後楽二丁目５番１号 Tokyo, 〒1120004, JP)
日立建機株式会社 (〒04 東京都文京区後楽二丁目５番１号 Tokyo, 〒1120004, JP)
International Classes:
F16H57/02; B60K17/10; F16H45/00; F16H47/02
Attorney, Agent or Firm:
HIROSE Kazuhiko (4F. HAP Nishishinjuku Bldg, 1-2 Nishishinjuku 3-chome, Shinjuku-k, Tokyo 23, 〒1600023, JP)
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