| 摘要 |
PURPOSE:To enable oil to be uniformly supplied to a bearing of four shafts, by constituting a crossed shaft structure such that repetition of its start and stop enables grease in a grease reservoir of the crossed shaft structure to be forcedly supplied by every fixed amount to the bearing of each shaft. CONSTITUTION:Crease is initially supplied from a nipple 17 of a grease filling hole 16 to a grease reservoir 14 of a crossed shaft structure 10. And the crossed shaft structure 10, if it rotates, moves a movable rod 25 and a movable receiving cup 27 to the outermost end position, opening a plug 26 while blocking a grease passage 24 by a peripheral wall of a small contour grease receiving part 27a. And the grease in the grease reservoir 14 passes through a grease hole 15 being allowed to flow into a large contour grease receiving part 27b. On the contrary, the crossed shaft structure 10, if it stops, moves the movable rod 25 and the movable receiving cup 27 to the innermost end position, closing the plug 26 while opening the grease passage 24. Consequently, the grease in the large contour grease receiving part 27b passes through the grease passage 24 being allowed to flow down into the small contour grease receiving part 27a. |
