US2684208A - Convertible type bowl and liner for gyratory crushers - Google Patents

Description

E. WERNER 2,684,208

CONVERTIBLE TYPE BOWL. AND LINER F'OR GYRTORY CRUSHERS July 20, 1954 2 Sheets-Sheet l Filed Oct. 27 1950 July 20, 1954 E. WERNER 2,684,208

CONVERTIBLE TYPE BOWL AND LINER FOR GYRATORY CRUSHERS Filed Oct. 27, 1950 2 Sheets-Sheet 2 g E l l' snug" W im 1 AS S3 Inveiezof jaaa/a7 Wer/762" Patented July 20, 1954 CONVERTIBLE TYPE BOWL AND LINER FOR GYRATORY CRUSHERS Ewald Werner, Milwaukee, Wis., assigner to Nordhcrg Manufacturing Company, Milwaukee, Wis., a corporation of Wisconsin Application October 27, 1950, Serial No. 192,537

5 Claims.

My invention relates to improvements in bowl and concave structures for gyratory Crushers and has for one purpose to provide a bowl to which liners or replaceable crushing members of various types and dimensions can be applied.

Another purpose is to provide a bowl structure, for gyratory Crushers, to which bowl liners of different transverse or vertical dimensions may be applied.

Another purpose is to provide an improved adapter or securing member or members for use in securing bowl liners to the bowl of a gyratory crusher.

Another purpose is to provide a bowl for gyratory crushers to which liners may be quickly and easily applied.

Another purpose is to provide a bowl which will render the application of zinc, lead or backing metal to the liner easy and safe.

Another purpose is to provide a bowl structure in which the lead or metal backing of the liner is not merely more easily applied, but has a longer life, and provides better constraint.

Another purpose is to provide a self-tightening bowl liner.

Another purpose is to provide a bowl liner involving a simplied foundry procedure.

Another purpose is to provide a bowl liner with which no zinc level has to be observed at the time of zinc pouring.

Other purposes will appear from time to time in the course of the specification and claims.

The invention is illustrated more or less diagraminatically in the accompanying drawings, wherein:

Figure l is a vertical axial section;

Figure 2 is a partial plan view of on an enlarged scale of the bowl and liner structure shown in Figure 1;

Figure 3 is a section on an enlarged scale on the lines 3-3 of Figure 2;

Figure e is a section on an enlarged scale on the lines 4 4 of Figure 2;

Figure 5 is a perspective View of a locking member; and

Figure 6 is a partial vertical axial section on an enlarged scale illustrating a different form of bowl liner and adapter or securing ring.

Like parts are indicated by like symbols throughout the specification and drawings.

Referring to the drawings, I generally indicates any suitable base or foundation to which gyratory crusher may be secured, the foundation including a space '2 into which a lower part of the crusher may extend. 3 indicates a cir- (Cl. 21H-207) cumferential crusher main frame having a bottom flange 4 and a top flange 5. The top flange 5 is shown as having an inner conic surface 6, an outer conic surface l, an upper generally horizontal, generally plane surface 8, and an externally generally cylindrical surface 9. The result is the provision of an inwardly and outwardly beveled ring, the purpose of which will appear later. l is a central xed sleeve connected to the circumferential frame member 3, for example by spider or radial elements II. The sleeve I c is upwardly and outwardly expended at its upper end as at I2 to provide a gear receiving space I3. The upper end of the sleeve proper extends upwardly therein as at I4. Any suitable cylindrically surfaced liner I may be provided.

Rotatable within the cylindrical sleeve I9 is the eccentrically apertured sleeve IS, which has an aperture Il eccentric to and inclined in relation to the axis of the sleeve I6. i8 is any suitable wear-taking liner for the eccentric aperture il of the sleeve I6. I3 is a gear keyed or otherwise secured to the upper end of the sleeve I6. The gear It is in mesh with the bevel pinion on the outer shaft 2 I, which carries at its outer end the drive pulley 22, channeled as at 23 to receive any suitable driving elements extending to a source of power not herein shown. lt will be understood that when the countershaft 2i is rotated, it rotates the eccentrically apertured sleeve I6.

The countershaft 2I is shown as mounted in a housing element generally indicated as y24. Adjacent its outer end is a plate portion 25 which interts with an outer enlargement 26 of the circumferential frame member 4. Any suitable bearings 2l, 28 are provided for the countershaft 2|, each being in the form of a sleeve with an end flange. The inner end of the member 24 is enlarged, as at 29, to interlit with a side enlargement 30 of the fixed sleeve I6. The housing 24 is formed to drain oil back toward the inner end of the shaft 2 I. Unitary with the sleeve i@ is the oil discharge duct 3I, which, through any suitable elbow 32, may be connected with the return side of any suitable oil pump not herein shown.

Extending into the eccentric aperture I 'l is the Crusher shaft 35. It will be noted that the shaft t5 is tapered downwardly at its lower portion and seats within an anti-frictional sleeve i8. The result of the rotation of the sleeve I6 is the gyration of the shaft about the fulcrum X, the point at which the axis of the aperture I1 and the axis of the exterior surface of the sleeve i intersect.

Mounted on an upper portion of the shaft is the Crusher head St. An upper portion 36a of the head 3e surrounds and engages an upper portion 35a of the shaft 35. The upper end of the shaft 35a ends in an externally screw-threaded portion 35h. 3l is any suitable closure for the space I3, which is shown as resting upon the upper edge of the enlargement l2 and it is provided with a wear-taking socket 38 having a generally spherical concave upper surface adapted to receive a corresponding inwardly convex bearing surface of the head 3S. Thus the head 35, resting upon the socket 36, gyrates with the shaft t5 above the center.

Any suitable sealing means may be employed, the details of which do not form part of the present invention. I illustrate, for example, the upwardly spring-thrust sealing ring or assembly dil having parts opposed to circumvent inwardly extending lugs or flanges 4I formed on the lower inner surface of the head 36.

55 is any suitable mantle shown as resting upon any suitable metal backing 46 on the conic outer surface of the head 36. The mantle is engaged at its upper inner edge by a compression member or sleeve li slidable on an intermediate part 35e or" the Crusher shaft. The head is held in downward position by a combined counterweight and nut generally indicated at 5). The member Sie has a lower portion ella inwardly screwthreaded to mesh with the threads of the shaft portion 35h. A distributing plate 5I is secured to the upper surface of the nut or seat til, for example by bolts 52. The member 5i is itself of substantial mass and its weight, together with that of the nut 5E?, provides a substantial counterbalancing of the head and shaft 35 below the center or fulcrum X.

tl generally indicates a bowl supporting ring supported on or normally xed on the upper flange 5 of the circumferential frame member 3. it is circumferentially recessed to conform to the exterior shape of the flange 5, as will be clear from Figure l. lit is normally held xed in relation to the main frame by the employment of the spring abutment ring 6I. The ring 6% is normally yieldingly held in the position in which it is shown in Figure l by the springs 61B. These springs are kept under sufficient compression to resist normal crushing stresses, while yielding to permit the passage or unorushable material. The springs abut at their lower ends the upper surface of the compression ring Gi. The ring is suspended by the bolts 62, headed as at 62a., which extend downwardly through any suitable apertures 63 in the outer edge of the ring Sil. The ring te is held against unintended lateral movement in relation to the iiange 5 by the upwardly extending positioning pins 6d, shown as having more or less tapered heads te extending into apertures t@ of the ring Bil. The members 6i nay be dropped into suitable apertures 6l in the flange The springs G3 are under compression between the abutment ring Sl and the lower surface of the flange 5. if desired, an upper abutment ring 69 may be employed, apertured to permit the passage of the bolts or tension members 62E. It will be understood that the particular spring means employed do not of themselves form part of the present invention and I may employ either continuously extending rings or nests or segmental elements to receive the spring E8.

By the above-described structure or some other suitable structure, the ring 59 is normally held against movement in relation to the main frame 3, but is free to tilt slightly if uncrushable material passes through the crushing zone.

`Adjustable in the ring @t is the bowl structure generally indicated as it. It includes a generally cylindrical outer member "u l, externally threaded as at i2 to mesh with the internal threads 'i3 of the ring SD. It has also a generally conio inwardly and upwardly extending component extending from the lower edge of the outer or cylindrical component ll. The bowl structure may have external lugs, as at l5, to receive any outer housing element 56, which is sealed as at 'il' to prevent the entry of dust about the exterior of the hopper or guide i8, which rests on the upper edge of the bowl ll. Any suitable seal l may be employed between the lower portion of the ring @il and the lower outer surface of the bowl.

Sil generally indicates a bowl liner which is shown as having a lower surface 8i in metal to metal contact with the opposed lower upwardly and inwardly conic surface Bia of the bowl lil. The inner surface of the bowl portions 'irl is provided with threads or wedging surfaces ldd. The upper edge of the bowl liner is provided with outwardly extending lugs Sd. Extending between the upper inner surface of the bowl portions 'l'll and the outer surface of the bowl liner BQ is a locking or adapter ring Elli. It is provided with external threads or wedging surfaces elle. opposed to the corresponding inwardly extending surface Ella of the bowl portions iii. It has inwardly extending lugs 9th opposable to the lower surface of the outwardly extending lugs Bilo of the bowl liner 86. It will be understood that when, as in Figure 2, the lugs @lib and elle are aligned, rotation of the adapter ring di), in relation the the bowl portion i, is effective to draw the bowl liner gli upwardly against the opposed inner surface of the bowl portion l2. Relative rotation of the bowl liner 823 and the adapter ring S may be prevented by any suitable locking means, such as the locking block shown for example at 9'5 in Figures 2 and 5.

When the bowl liner il@ is properly position-ed, the free space between the outer surface of the liner and the inner surface of the bowl portion T4 is upwardly open at a plurality of points as at Se in Figure 2, providing ample pouring space for pouring lead or any suitable backing metal A into the sp-ace between the two members. For ease in tightening, the adapter ring Si? is shown as having upwardly extending lugs siilc to which any suitable tool may be applied. rEhe prongs lc are preferably unevenly spaced to assure ready engagement of a suitable bar beyond the prongs llc and the evenly spaced bowl ribs 5dr. rihis is in relation to the barring purpose of tightening the ring regardless of its position in relation to the bowl. In other words, at any position of the bowl liner, the operator can engage a bearing for prying the ring de.

Assume that it is desired to employ the saine bowl with bowl liners of different contours. This may readily be done by merely changing the shape of the adapter ring. Figure 6 illustrates a structure in which a so-called short head cone crushei` is employed with a head and bowl and mantle shaped quite differently from those shown in Figure 1. The short head member itt carries a relatively short mantle lill held in position for example by any suitable locking or thrust ring |612. The bowl parts shown in Figure 6 are identical with those of Figure l. However, an adapter ring l e5 is employed of very diierent shape from the adapter ring 99 of the form of Figures 1 to 4. Since a substantially shorter bowl liner |63 is used with its exterior lugs 193e, the adapter ring l has at its lower edge inwardly extending lugs |9511. Extending outwardly from its outer face are ridges or wedging surfaces i951) which mesh or cooperate with the inward threads or surfaces lia of the bowl portion H. Whereas the contours or faces of the parts differ, the adapter ring |05 operates just like the adapter ring 99 in drawing the bowl liner m3 upwardly against the bowl portion 14. The lead or backing material A is poured in the same manner.

In both forms of the device, any suitable hopper im may be dropped into position above the bowl and may be employed to direct the material to be crushed into the crushing cavity between the opposed bowl liner and mantle.

It will be realized that, whereas, I have described and claimed a practical and operative device, nevertheless many changes may be made in size, shape, number and disposition of parts without departing from the spirit and scope of my invention. I therefore wish my description and drawings to be taken as in a broad sense illustrative or diagrammatic, rather than as limiting me to my speciiic showing herein. For instance, a wide variation in the size and shape of adapter rings and bowl liners may be employed.

The use and operation of my invention are as follows:

I illustrate herein a universal type bowl in com bination with a simplified self-tightening bowl liner- My bowl structure le, in a crusher of predetermined size or transverse diameter, may be employed to take a wide Variety of shapes or contours of bowl liners. I illustrate my inven tion as applied to a gyratory Crusher with a generally conic head. It is thus not necessary to employ or stock individual bowl elements to take different bowl liners, as has been the past custom with this type of crusher. The result is that a substantially smaller number of individual bowl members need be stocked. Also permits a ready conversion to a diierent crushing cavity in the field.

A further advantage of the herein described structure rests in the above-mentioned combination of the unevenly spaced prongs on the ring Sli and in connection with the equally spaced ribs 99x of the bowl. Its barring or prying function has already been discussed.

I claim:

l. For use in gyratory crushers, a bowl member having an inner generally conic component provided with inwardly extending threads at the upper portion thereof, said component being formed and adapted to receive a bowl liner at the lower portion thereof, an adapter ring positioned inwardly of said bowl component and having outwardly extending threads engageable with said first-mentioned threads, said adapter ring having circumferentially spaced bowl liner engaging members extending inwardly therefrom, and upwardly extending adjusting members whereby rotation of said members will adjust the position of said liner with respect to said bowl component.

2. For use in gyratory crushers, a bowl member having an outer component and an inner generally conic component extending upwardly and inwardly from a lower portion of the outer component a bowl liner for said bowl member, said bowl liner having an outer conic portion, the space between said components being upwardly open, said components having circumferentially spaced connecting ribs, the upper portion of the inner component being inwardly screw-threaded and having, below such threads, a generally conic surface opposable to the outer conic portion of the bowl liner, and an adapter ring having an outwardly extending thread cooperable with the thread of the inner component of the bowl member, said adapter ring having circumferentially spaced inwardly extending lugs adapted to cooperate with outwardly extending portion of a bowl liner and having also circumferentially spaced upwardly extending members, the circumferential spacing of said members being different from the circumferential spacing of said connecting ribs.

3. For use in gyratory crushers, a bowl member having an outer component and an inner generally conic component extending upwardly and inwardly from a lower portion of the outer component, the space between said components being upwardly open, said components having circumferentially spaced connecting ribs, the upper portion of the inner component being provided with a wedging means, and an adapter ring having an outwardly extending wedging means cooperable with the wedging means of the inner component, said adapter ring having inwardly extending lugs adapted to cooperate with outwardly extending portions of a bowl liner and having also circumferentially spaced upwardly extending barring lugs, the circumferential spacing of said barring lugs being different from the circumferential spacing of said connecting ribs.

4. For use with gyratory Crushers having a bowl liner, an adapter ring having an outer portion thereof provided with screw threads, a plurality or circumferentially spaced linerengaging members extending inwardly beyond the remainder of the ring, said members being formed and adapted to present vertically open and accessible spaces between the members.

5. For use with gyratory crushers, a bowl liner having outwardly extending circumferentially spaced members at an upper portion thereof, an adapter ring provided with screw threads on an outer portion thereof and a plurality of circumferentially spaced members extending inwardly therefrom, said inwardly extending members being formed and adapted to engage the outwardly extending members on said bowl liner and provide vertically open spaces therebetween.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,953,472 Fahrenwald Apr. 13, 1934 2,341,543 Gruender Feb. 15, 1944 2,341,544 Gruender Feb. 15, 1944 2,359,987 Gruender Oct. 10, 1944 2,509,920 Gruender May 30, 1950

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