High-speed rotating crushing machinery

Details High-speed rotating crushing machinery High-speed rotating crushing machinery

1977-02-04

1977-12-06

Custer, Jr., Granville Y.

Solid material comminution or disintegration

Apparatus

Comminuting surface provided with openings to permit...

64 1V, 68 233, 74574, 241275, B02C 2300

Patent

active

040612791

ABSTRACT:
Improved drive shafting elements suitable for use in high speed rotating crushing machinery are disclosed comprising a central cantilever shaft mounted within a surrounding sleeve to which the cantilever shaft 15 rigidly connected at one end and within which the cantilever shaft has substantial radial play at the other end to permit a rotating impeller or similar element mounted thereon to center itself automatically for rotation on its center of gravity at speeds above the first critical speed. Means are included for damping radial vibrations as the shafting rotates through the first critical speedand for damping whirl due to shaft instabilities and self-excited vibrations above the first critical speed. Improved impactor targets for use in centrifugal crushing machines and and improved centrifugal crushing method are also disclosed.

REFERENCES:
patent: 2220524 (1940-11-01), Kapitza
patent: 2474314 (1949-06-01), Koehne
patent: 2652700 (1953-09-01), Seibel
patent: 3040598 (1962-06-01), Warren
patent: 3116813 (1964-01-01), Ziegler
patent: 3135689 (1964-06-01), Antinori
patent: 3162382 (1964-12-01), Danyluke
patent: 3456992 (1969-07-01), Kulina
patent: 3499691 (1970-03-01), Baier
patent: 3549216 (1970-12-01), Sutyak
patent: 3606182 (1971-09-01), Warren
patent: 3738717 (1973-06-01), Gardner

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