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Patent Searching and Data


Title:
PLANETARY ROLLER TYPE POWER TRANSMISSION DEVICE
Document Type and Number:
Japanese Patent JP2010133545
Kind Code:
A
Abstract:

To provide a planetary roller type power transmission device that achieves lubrication preventing fretting wear on a lateral side of an elastic ring, which is the request made by many people in a particularly large sized planetary roller type power transmission device.

In the planetary roller type power transmission device 1, a sun roller 12 and an elastic ring 16 fitted into a groove 11a inside a housing 11 are arranged and further a plurality of planetary rollers 15 is arranged in a freely rollable manner at equally divided angles between an outer circumferential surface of the sun roller 12 and an inner circumferential surface of the elastic ring 16. In the planetary roller type power transmission device 1, the planetary roller 15 is rotatably supported to a shaft 17 fixed to a carrier 18. Then, the planetary roller type power transmission device 1 includes an opening on a lateral side of the carrier 18 of a lubricating oil immersing unit 20 inside the housing 11 and a pipe 25 through which the lubricating oil is sent from the lubricating oil immersing unit 20 to a lateral side of a portion where the elastic ring 16 is fitted into the groove 11a, inside the housing 11 of the elastic ring 16.

COPYRIGHT: (C)2010,JPO&INPIT


Inventors:
SHIOZU ISAMU
Application Number:
JP2008312729A
Publication Date:
June 17, 2010
Filing Date:
December 08, 2008
Export Citation:
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Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
F16H57/04; F16H13/08; F16H57/02
Domestic Patent References:
JP2008249004A
JP2008240800A
JP2005008143A
JPS59115155U
JPH07145856A
Attorney, Agent or Firm:
森 隆一郎
志賀 正武
高橋 詔男
山崎 哲男