| 摘要 |
<p>PURPOSE:To aim at self-lubricating a rotary shaft and at making a self-lubricating device lightweight by providing an oil sump with a required water head, above a rotary shaft which pierces through an oil feed body comprising an oil pressure generating member having a circumferential oil recess and an oil pressure generating recess, and which is provided in its thick wall section with oil holes and a rotary plate for promoting the distribution of oil. CONSTITUTION:Oil is led to the peripheral surface 4b of the rotary shaft 4 from an oil sump 2 provided above the rotary shaft 4 with a required water head, through a communication hole 6 and oil holes 3f, 3g. The rotary shaft 4 pierces through an oil feed body 3 in which the outer race 14a of a roller bearing 14 is fitted, through the intermediary of a seal member 6, and a circumferential oil recess for distributing oil 9 is formed in oil feed body 3. Oil holes 4e for communicating a space 4h of the rotary shaft 4 which receives an intermediate shaft 19, with the oil feed hole 3g, are formed in a thick wall section 4g of the rotary shaft 4, and these holes 4 being adapted to be rotated along the inner periphery of an oil pressure generating member 5 provided in the oil feed body 3, and a rotary plate 7 for promoting the distribution of oil is fixed to the rotary shaft 4. Accordingly, self-lubrication may be made even at a high rotational speed, and thereby it is possible to reduce the cost owing to the simplified and lightweight mechanism.</p> |
