Bearing structure for auger-type ice making machines

Details Bearing structure for auger-type ice making machines Bearing structure for auger-type ice making machines

1994-10-06

1996-07-02

Tapolcai, William E.

Refrigeration

Means producing shaped or modified congealed product

Heat absorber with product remover

384624, F25C 512

Patent

active

055310796

ABSTRACT:
A bearing structure for an auger-type ice making machine 10 includes: an auger 17 having a helical blade 17a which rotates within a cylindrical refrigeration casing 11 so as to scrape off ice generated on the inner surface of the refrigeration casing 11 and push it up and out of the casing; a slide bearing 27 for supporting an upper shaft section 17b of the auger17; and, a press head 25 which is provided inside the upper end portion of the refrigeration casing 11 and which supports the slide bearing 27, wherein even if the upper shaft section 17b of the auger 17 and the press head 25 make an axial relative movement as a result of the scraping off and feeding-out of the ice, substantially closed first and second foreign matter trapp spaces A and B are formed in close proximity to the lower and upper ends of the slide bearing. Further, a high-hardness metal layer 17f having a thickness, for example, of approximately 0.5 mm is formed on the surface of the upper shaft section 17b of the auger 17. Any exfoliated portion of the bearing section is trapped in the foreign matter trap spaces, and a satisfactory slideface is formed between the slide bearing and the high-hardness metal layer to achieve a substantial improvement in wear resistance properties.

REFERENCES:
patent: 3183682 (1965-05-01), Conto
patent: 3196628 (1965-07-01), Reynolds
patent: 3230737 (1966-01-01), Lunde
patent: 4497184 (1985-02-01), Utter et al.
patent: 4741173 (1988-05-01), Neumann

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