| 摘要 |
PURPOSE:To supply leak oil from fine through holes to bearings, etc., for multi- shaft by forming fine through holes leading to outside in a blind stopper to close the oil pathway drilled in the multi-shaft. CONSTITUTION:Fine through holes 8 and 8' are drilled in the blind stoppers 7 and 7' of oil pathways 3 and 3' drilled in a multi-shaft 1. Pressure oil supplied by an oil-pressure pump is leaked from the fine through holes 8 and 8' and supplied to a needle bearing 11 every time the oil-pressure pump operates. Also, when an oil-pressure cylinder goes back, the oil can be returned through the oil pathways 3 and 3' to an oil tank. At this time, since the oil is leaked from the fine through holes 8 and 8' by the pressure of a working machine, the return of the oil to the oil-pressure cylinder is made better because of its priming action. |
