OIL SUPPLY STRUCTURE OF GYRATORY CRUSHER

摘要

PROBLEM TO BE SOLVED: To provide an oil supply structure of a gyratory crusher which is an upper part opening maintenance type capable of achieving excellent maintainability and yet enables oil supply amount control for maintaining a sound oil film in a bearing portion.SOLUTION: An oil supply structure 30 includes: a first oil supply inlet 31 which opens on a bottom part of a lower frame assembly 13 to supply an oil to a first bearing part 41; a second oil supply inlet which opens an inner peripheral surface of an outer cylinder brush part 13a to supply the oil to a second bearing part 42; and an annular seal formation part 34 which is provided at an inner side of the lower frame assembly 13 and has a non-contact surface facing an end surface of a lower end part of a sleeve part 14c. A gap 33 between the non-contact surface of the seal formation part 34 and the end surface of the lower end part of the sleeve part 14c is sealed by a lubrication oil. A partition plate 35 is disposed at an outer periphery of the annular seal formation part 34. An annular oil reservoir part 50 is formed between the partition plate 35 and an outer peripheral surface of the lower end part of the sleeve part 14c.SELECTED DRAWING: Figure 2