HYDRAULIC FLUID FEEDER

摘要

To enable the supply of fluid different in pressure from one end of a revolving shaft without working a diagonal hole in the revolving shaft for supply holes for feeding hydraulic fluid and lubricating oil and reduce working time and the cost in a hydraulic fluid feeder to the revolving shaft provided with at least one hydraulic equipment operated by switching oil pressure on the revolving shaft. A hydraulic fluid feeder characterized in that a central hole is provided on the center line of the revolving shaft, hollow tubes having a smaller outside diameter than the inside diameter of the central hole are concentrically inserted into the central hole and th e central hole is partitioned, either of passages formed by partitioning functions as a hydraulic fluid supply passage for the hydraulic equipment and the other functions as a hydraulic fluid supply passage for another hydraulic equipment or a lubricating oil supply passage for a bearing provided on the revolving shaft.