| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a planetary roller type traction drive which can detect the generation of a fine crack, can take measures in an early stage, and is high in reliability. <P>SOLUTION: The planetary roller type traction drive 1 includes: a plurality of planetary roller 5 which are arranged around a sun roller 3 so as to be able to rotate/revolve; a ring roller 7 which is arranged outside the plurality of planetary rollers 5 and sandwiches the planetary rollers 5 together with the sun roller 3; a sun shaft 9 concentrically fixed to the sun roller 3; a carrier 11 which rotatably supports the respective planetary rollers 5; and a carrier support shaft 13 which is fixedly attached to the carrier 11 and located coaxially with the carrier. The planetary roller type traction drive is also characterized in that the fine crack generated at the ring roller 7 is detected by a displacement meter 57 which measures the radial displacement of the carrier support shaft 13. <P>COPYRIGHT: (C)2012,JPO&INPIT |
