Moving body guiding device
AssigneeMakino Milling Machine Co., Ltd.
InventorsYoshio Hoshi, Kazumasa Kono
Life of this patent
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Abstract
In a moving body guiding device which supplies lubricating oil between a guiding surface of a supporting body and a sliding surface of the moving body and guides a moving body, a lubricating oil pocket having a periphery enclosed by a land portion is provided on the sliding surface of the moving body, a closed loop oil groove is formed along the inside of the land portion, a front portion and a rear portion inside the lubricating oil pocket communicate with one another by means of a lubricating oil pocket return passage at least partially opening in the oil groove, and lubricating oil that has accumulated in the rear portion, in a movement direction, concomitant with movement of the moving body, flows to the front portion in the movement direction.
Claims6
A moving body guiding device configured to supply lubricating oil between a guiding surface of a supporting body and a sliding surface of a moving body, and guide the moving body, the device comprising:
- a lubricating oil pocket provided in the sliding surface of the moving body, a periphery of the lubricating oil pocket being enclosed by a land portion, a plurality of recesses being formed in the oil pocket so as to fluidly communicate with each other, and a closed-loop oil groove being formed on the land portion so as to fluidly communicate with the recesses adjacent to the oil groove,
- a lubricating oil return passage which is at least partially open in the oil groove of the lubricating oil pocket and which connects a front portion and a rear portion of the lubricating oil pocket so that the lubricating oil accumulated in the rear portion in a movement direction flows toward the front portion in the movement direction in accordance with movement of the moving body,
- a lubricating oil supply passage which is in communication with the lubricating oil return passage and which supplies the lubricating oil pocket with the lubricating oil supplied from a lubricating oil source through the lubricating oil return passage, and
- a lubricating oil collection passage which is in communication with the lubricating oil return passage and configured to return the lubricating oil from the lubricating oil return passage to the lubricating oil source.
Dependencies are inferred from the claim text.