LUBRICATION STRUCTURE OF TRANSMISSION

• Main Authors: KITAHARA TOMOYUKI, MYOCHIN HIDETO, SATO KOICHI, YAMAGUCHI YUKI
• Format: Patent
• Language: English; Japanese
• Published: 15.03.2018
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To efficiently supply lubricant to a required lubrication part through the inside of a rotational shaft.SOLUTION: A lubrication structure of a transmission 1 includes an input shaft 11, and input gears 33-35 provided on an outer peripheral surface of the input shaft. The input shaft 11 includes: a shaft body 11a including a main oil passage 60 extending in an axial direction, and branch oil passages 63-65 extending in a radial direction at positions corresponding to the input gears 33-35 and communicating with an outer peripheral part of the input shaft 11 and the main oil passage 60; and a shaft-like interpolated member 11b fitted into the main oil passage 60. On an outer peripheral surface of the interpolated member 11b, formed are oil guide grooves 73-75 extending in the axial direction and configured to guide lubricant to the branch oil passages 63-65.SELECTED DRAWING: Figure 1 【課題】より効率良く回転軸の内部を通じて要潤滑部に潤滑油を供給する。【解決手段】入力軸１１とその外周面上に設けられた入力ギヤ３３〜３５とを備えた変速機１の潤滑構造。入力軸１１は、軸方向に延在する主油路６０及び入力ギヤ３３〜３５に対応する位置において径方向に延びて当該入力軸１１の外周部と主油路６０とを連通する分岐油路６３〜６５を備えた軸本体１１ａと、主油路６０に嵌挿された軸状の内挿部材１１ｂとを備える。内挿部材１１ｂの外周面には、軸方向に延びて分岐油路６３〜６５に潤滑油を導く油誘導溝７３〜７５が形成されている。【選択図】図１