Title:
CRUSHER
Document Type and Number:
Japanese Patent JP2017200686
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a crusher which can keep a state where intrusion of powder dust is prevented and lubrication is appropriately performed, in a slide contact portion between an oscillating core portion and a device frame supporting the core portion, and can smoothly crush an object to be crushed.SOLUTION: A seal tube 18 of an annular hollow body is provided so as to surround an outer shell structure portion 15b of a device frame 15 that is outside of a slide contact portion between a core portion 12 and a device frame 15 and is below a seal ring 17. The seal tube 18 expanded by fluid supply is provided along each of a lower peripheral edge portion 12b of the core portion 12 and the outer shell structure portion 15b, and the seal tube 18 is interposed on a space between the core portion 12 and the device frame 15 outside of the seal ring 17, which can separate the gap between the core portion 12 and the device frame 15 from the space outside of the device and can prevent intrusion of powder dust generated by crushing into the slide contact portion through the gap.SELECTED DRAWING: Figure 1
Inventors:
NAKAYAMA HIROSHI
Application Number:
JP2016093260A
Publication Date:
November 09, 2017
Filing Date:
May 06, 2016
Export Citation:
Assignee:
NAKAYAMA IRON WORKS LTD
International Classes:
B02C2/04; F16J15/10
Attorney, Agent or Firm:
Yasuo Hirai
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