| 摘要 |
PURPOSE:To prevent the generation of noise caused by backlash and reduce power consumption by providing a cover along the periphery of a gear on one side, forming an oil passage between the periphery of the gear and the cover in such a way as to be tapered along the rotating direction of the gear, and providing an oil passage exit in the state of facing the engaged part between both gears. CONSTITUTION:A cover 14 is provided along the periphery of a gear 17 continuously from the inner face of a casing 19 gradually tapered in the rotating direction between the periphery of the gear 17 and the casing 19, and that in the further tapered state, thus forming an oil passage 15. The exit 18 of this oil passage 15 is to face the engaged part between the gears 16, 17. Accordingly, lubricating oil 22 flowing out of the exit 18 with the specified speed energy rotates the gear 16 in the unloaded state. Even when the gear 16 is loaded, the lubricating oil 22 flowing out of the exit 18 functions to promote the rotation of the gears 16, 17. As a result, power loss becomes less, and the generation of backlash noise is prevented. |
