US1704335A - Gyratory comminutor - Google Patents

Description

- March 5, 1929. R. c. NEWHOUSE GYRATORY COMMINUTOR Filed Dec. 22, 1924 Patented Mar. 5, 1929.

UNITED STATES PATENT OFFICE.

RAY o. nnwnousn, or wauwm'osa, WISCONSIN, Assmnbn 'ro ALLIS-CHAIJIIERS MANUFACTURING COMPANY, or MILWAUKEE, wrsconsm, a coaronnrron or DELAWARE.

GYRATORY COMMINUTOR.

Application filed December 22, 1924. Serial No. 757,310.

This invention relates in general to improvements in the art of reducing materials,-

and relates more specifically to improvements in the construction and operation of fine reduction Cl'tlSliBlS or comminutors for rock,

ore, coal, or the like.

An object of the invention is to provide an improved machine for disintegrating relatively hard substances. Another object of the invention is to provide a simple andeliicient gyratory connninutor. 1

It is frequently desirable in various industries, to reduce material which has been pre viously reduced to a relatively granular state, to a fine powder. The machines for accomplishing, such results are commonly known as fine reduction crushers or comminutors. It is an object of the present invention to provide a simple, compact, and eflicient reduc tion crusher or comminutor operable at high speed and having maximum capacity. These and other objects and advantages of the present improvement will be apparent in the course of the following description. I

The novel method of freely suspending a crusher, disclosed but not claimed broadly herein, forms the subject of a copcnding ap plication filed concurrently herewith.

A clear conception of an embodiment of the invention and of the operation of devices constructed in accordance therewith may be had by referring to the drawing accompanying and forming a part of this specification in which like reference characters designate the same or similar parts in the various views.

Fig.1 is a transverse horizontal section through an improved .gyratory comminutor, the section being taken directly above the comminuting chamber.

Fig. 2 is a central vertical section through the improved gyratory comminutor.

The improved gyratory comminutor illustrated in the drawing, comprises generally an outer annular comminuting member forming a race 3; an inner comminuting member or ball 2 rollable along the inner surface of the race 3; an unbalanced impeller or actuator 23 mounted upon a vertical actuator shaft 7 and adapted to gyrate the race 3; a cup shaped frame member 4 supporting the race 3 and providing a lower guide bearlng 18 for the shaft 7; a prime mover or electric motor 11 for driving the actuator shaft 7 a frame member-or spider 22 for supporting the mem- 11 above the frame member 4:; and

a flexible suspension comprising cables 8 for supporting both the crusher and its prime mover. a

The annular race 3 isrigidly secured to the upwardly extending wall of the frame memher 4, and the bottom of the member 4 is preferably protected by a wearing plate 19. The interior of the frame member 4 forms a comminuting chamber 101 within which the ball 2 is freely revoluble. The ball 2 is disposed between two radiating weights 6 formed integral with the actuator 23, these weights engaging the ball 2 only when the machineis being started. The actuator 23 has a series of downwardly and outwardly directed feed openings 9 therein, the upper extremities of which communicate with the interior of a downwardly diverging annular guide casing 16. A material supply chute 15 has its delivery end directed into the upper opening of the guide casing 1611s shown in Fig. 1. a l a The vertical actuator shaft 7 which supports the actuator 23 has its lower extremity mounted in the guide bearing 18 which is accessible upon removal of the cap 20, and has its upper end mounted in acombined thrust and guide bearing 13 which is supportedby the spider 22. The spider 22 supports the "electric motor 11 above and in line with the actuator shaft- 7 the shaft 14 of the motor being directly connected to the upper extrem ity of the actuator shaft 7 by means of a flexible coupling 12. An annular. guard casing 17 carried bv the spider 12 extends above the crushing chamber and converges downwardly below the crusher. toward a discharge opening 21. l

The spider 22 comprises three substantially radial arms formed integral with a rings member 5 which is rigidlyconnected to the frame member -1 as indicated in the drawing. The

race 3... After the machinahas beenthus set in motion, the unbalanced weights 6 of the actuator 23 cause the outer con'nninuting member or race 3 to gyrate and the centrifugal force created Within the inner connninuting member or ball 2 causes this ball to as sume a position as indicated in Fig. 1, midway between the Weights 6. The material admitted to the crushing chamber from the feed spout and through the casting 16 and passages 9, is caused by centrifugal force to flow outwardly and to lodge upon the race 3. 7 As the ball 2 rolls over the n'laterial. upon the race 3, the particles of material are reduced and the iine material is discharged by centrifugal force over the top of the race 3 and into the guard casing 17 Where it flows by gravity downwardly through the final discharge opening 21.

It Will be noted that during gyration of the crusher, the flexible or yielding support altorded by the suspension cables 8, permits free g ration oi the crusher Without transmitting vibrations to the stationary supporting structure. The various bearings of the machine are protected against entry 01 undesirable substances and are readily accessible for lubrication. Due to the high speed of operation of the machine, large capacity is attainable with a relatively compact structure operable with minimum power. The crushing members 2, 3 are readily replace able when Worn to such an extent as to be ineflicient, as are also the lining plates 19.

It should be understood that it is not desired to limit the invention to the exact details of construction and operation herein shown and described for various modifications Within the scope of the claims may occur to persons skilled in the art.

I It is claimed and desired to secure by Letters Patent 1. In combination, relatively movable inner and outer comminuting members, said outer member being fixed against rotation, and means for gyrating said outer member and for causing rotation and orbital advancement of said inner member.

9.. In combination, relatively movable inner and outer connninuting members, said outer member being fixed against rotation, and means tor gyrating said outer member and for causing said inner member to roll m'bitally within said outer member;

3. In combination, relatively movable inner and outer comminuting members. and an unbalanced rotary impeller for gyrating said outer member and for orbitally advancing said inner member to create centrifuge crushing force therein.

4. In combination, relatively movable inner and outer comminuting members, and means for gyrating said outer member to cause said inner member to roll orbitally upon a surface thereof so as to create centrifugal crushing force in said inner memher.

5. In combination, a rotary impeller, a connninuting member movable by and about the axis of said impeller, and a second comminnting member gyratable by said impeller and surrounding said movable member.

6. In combination, a rotary impeller, a comminuting member movable by and about the axis of said impeller, and a second comminuting member surrounding said first mentioned member, said second member being gyratable by said impeller relatively to said axis.

7. In combination, an annular comminuting member, means for gyrating said member with the plane of annularity horizontal, a rotary comminuting member cooperable with the interior of said gyratory member to effect reduction of material, and means for orbitally advancing said rotary member.

8. In combination, an outer freely swingable connninuting member, a second comminuting member supported by and freely movable Within said swingable member, and means for moving said second member.

9. In combination, inner and outer freely suspended coacting comminuting members, and means for gyrating said outer member and for causing said inner member to roll orbitally therein.

10. In combination, means forming a race, a member freely revoluble upon said race, means for gyrating said race and for revolving said member, a prime mover for actuating said gyrating means, and means cooperating With said gyrating means for admitting to the path of said member on said race material requiring reduction.

l1. In combination, means forming a race, a member freely revoluble upon said race, means for gyrating said race and for revolving said member, means for yieldably suspending; said race, and means cooperating with said gyrating means for admitting to the path of said member on said race material requiring reduction.

12. In combination, means forming a race, a member freely revoluble upon said race, means for gyrating said race and for revolving said member, a prime mover for said gyrating means supported from said race, means cooperating with said gyrating' means for adn'litting to the path of said member material requiring a reduction, and a yieldable suspension for said race, member, and prime mover.

13. In combination, an outer commmutingmember forming an annular horizontal race, a rollable comminuting member orbitally movable along said race by the gyration of said annular member to crush material, and means for gyrating said outer member and for advancing said rollable member in a horizontal plane.

14. In combination, an outer comminuting member forming an annular horizontal race.

movable WlthlIlSald race to crush material,

an impeller for simultaneously gyrating said 10 outer member and for moving said inner member along said race in a horizontal lane, and means for feeding material to sai race.

In testimony whereof, the signature of the inventor is affixed hereto.

RAY C. NEWHOUSE.

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