US3150839A

US3150839A - Crusher frame

Info

Publication number: US3150839A
Application number: US183795A
Authority: US
Inventors: Jerome C Motz
Original assignee: Nordberg Manufacturing Co
Current assignee: Nordberg Manufacturing Co
Priority date: 1962-03-30
Filing date: 1962-03-30
Publication date: 1964-09-29
Anticipated expiration: 1981-09-29

Description

J. C. MOTZ CRUSHER FRAME Sept. 29, 1964 3 Sheets-Sheef 1 Filed March 30, 1962 Sept. 29, 1964 J. c. MOTZ 3,150,839

CRUSHER FRAME Filed March '30, 1962 3 Shee s-. heet 2 p 1964 J. c. MOTZ 3,150,839

CRUSHER FRAME Filed March 50, .1962

3 Sheets-Sheer 3 1N VENTOR.

United States Patent 3,150,839 CRUSHER FRAME Jerome C. Mctz, Milwaukee, Wis, assignor to Nordberg Manufacturing Company, Milwaukee, Wis, a corporation of Wisconsin Filed Mar. 30, 1962, Ser. No. 183,795 16 Claims. (Cl. 241---285) This invention relates to a cone crusher frame, and particularly relates to an assembled cone crusher frame.

An object of this invention is a cone crusher frame which may be economically assembled.

Another object is a cone crusher frame assembly which is adapted to receive conventional complementary structures of a gyratory cone crusher.

Another object is a cone crusher frame in which component parts are designed for efiicient and economical assembly.

Another object is a cone crusher frame assembly characterized by reduced weight and bulk.

Another object is a cone crusher frame in which the number of cast components are reduced.

Another object is a cone crusher frame assembly wherein only the center hub component is cast.

Another object is a cone crusher frame assembly wherein the center hub component is cast and the remaining components are fabricated.

Another object is a cone crusher frame assembly wherein fabricated components are fixed about a centrally cast hub component by weld means.

Another object is a cone crusher frame assembly in which a fabricated plate is adapted to receive the remaining components of the assembly.

Another object is a fabricated plate adapted to receive cast and fabricated components of a cone crusher frame assembly.

Another object is a fabricated plate with cut-out portions and specialized areas adapted to securely engage components of a cone crusher frame assembly.

The foregoing objects as well as other objects which will become apparent from time to time are now realized by the invention which will be described in detail and which is illustrated in the accompanying drawings wherein:

FIGURE 1 is a top plan view of an assembled cone crusher frame assembly,

FIGURE 2 is a sectional view along line 2-2 of FIG- URE 1,

FIGURE 3 is a top plan view of the fabricated plate,

FIGURE 4 is a side View partially in cross section of the center cast hub component fixed to the fabricated plate,

FIGURE 5 is a view along line 55 of FIGURE 4,

FIGURE 6 is a section on an enlarged scale of the secured junction of the hub and fabricated plate,

FIGURE 7 is a view along line 7-7 of FIGURE 2,

FIGURE 8 is a fragmentary sectional view along line 8-8 of FIGURE 1,

FIGURE 9 is a view along line 99 of FIGURE 2,

FIGURE 10 is a fragmentary view on an enlarged scale along line 10-10 of FIGURE 9,

FIGURE 11 is a section taken on an enlarged scale along line 11-11 of FIGURE 1,

FIGURE 12 is a fragmentary view in section of the shell fixed to the upper ring, and

FIGURE 13 is a fragmentary sectional view along line 13-13 of FIGURE 1.

Like reference numerals will refer to the same structures in the various views of the drawings.

The cone crusher frame is assembled around a center hub 10 and a boss 11 which are cast as one piece. The

ice

hub 10 has a central passageway in which an eccentric and shaft will be placed to rotate a gyrating head in the completely assembled cone crusher. Keyway slots 9 are in the wall of the hub 10 so that the eccentric housing may be keyed therein. The shaft within the passageway of the hub will be in an eccentric which eccentric will have a circular gear located at the top of the hub. The gear box that will enclose this gear is formed by a curved wall 20 which is bent around the top of the hub and joined to the boss 11 on both sides of said boss. A portion of plate 50 forms the floor of the gear box between the wall 20 and the hub 10. The boss 11 has a passageway 12 through which the countershaft of a pinion gear will pass. The pinion of said countershaft will engage the gear in the gear box. The front wall 113 of the boss 11 has a generally even surface parallel to the side 51 of the plate 50. In this front wall 13 is found the generally annular passageway 12 to receive the countershaft of the pinion. The side walls of the boss are contiguous with the center hub and consist of inwardly angled segments 15 and 16 flanking an intermediate straight segment 14 which is generally parallel to side 52. The bottom of the boss is shown generally tapered at the sides and the front as at 17, and has a flat floor 18 (FIGURES 2 and 5). The other side wall of boss 11 has similar straight segment 14a parallel to side 53 of plate 50, and inwardly angled segments 15:: and 16a.

Plate 50 is fabricated and adapted to receive other components of the cone crusher frame assembly. A top view of the fabricated plate is seen in FIGURE 3 wherein it is shown as a four-sided plate with opposed sides 52, 53. The plate has a generally central bore 56 which is defined by an annular wedged end 55. The annular wedged end 55 is fixed to hub 10 at annular projection 10a by weld seal 101. Projection 10a and end wedge 55 make contact at their respective high points as shown in FIGURE 6. Diverging spaces are formed on each side of the contact point and the weld mam 101 is placed in each diverging space. The weld 101 is wedgeshaped and is in the form of an annular fillet seam between plate 56 and hub 10.

The bore 56 is interrupted by communicating cut out portion 57 which extends from wedged end 55 to'side 51 of the plate. In plate 50 are spaced cut-out segments as at 58 which encircle said central bore 56 up to cut-out portion 57. Spaced between cut-out segments 55 are isthmuses or connecting bands 59 which connect inner annular band 60 with the outer portions of plate 50. Sides 61 and 62 in cut-out portion 57 lie closely against segments 16 and 16a of boss 11. Wedged ends 63 and 64 are weld sealed to the continuous side walls of an annular flange countershaft box 25 which is seen in FIG- URES 1 and 2. The flange countershaft box 25 has an annular passageway 26 therein aligned with passageway 12 in boss 11. The upper inside portion of countershaft flange box 25 is beveled as at 27 so said beveled surface closely follows the inside annular surface of main frame shell 30.

Shell frame 30 may be rolled to form a one piece annular shell or it may be formed from several curved Wall segments. The frame shell is preferably positioned on the plate 50 so that an inner edge extends into cut-out seg ment 58 as at 35 (FIGURE 13). This permits a weld seal 1433 to be placed between the bottom of the shell frame and the inside edge of plate 50, as well as between the top of the plate and the side of the shell frame. The bottom of the frame shell has a plurality of slots 31 (FIGURE 9) to closely engage upper arms such as 71 on the top surface of plate 50. The slots have wedged ends 32 to provide a welding surface with said arms in which weld mass is placed as seen in the top section view of FIGURE 10. The main frame shell has a sealloped portion 33 which is contoured to closely fit the upper continuous wall of flange countershaft box 25. A portion of the edge of the scalloped portion is wedged as at 34 so that a weld seal with the continuous wall of fiangecountershaft box 25 may be formed.

Intermediate the main frame shell 30 and center hub is a thickened curved wall partially encircling hub 10 and terminating against the junction line of segments 14, 16 on one side and segments 14a,16a on the other side of boss 11. The wall 20 may be fixed to the top of plate 50 by a weld seam 108. A wedged end is formed where the curved wall terminates so that a weld seam such as 102 may be placed between the wall and the boss.

An annular ring 40 is placed on top of the main shell frame 30. The top of the main shell frame has an asymmetrical wedged end, seen in FIGURE 12, and is formed from a longer sloping face 41 and a shorter straight face 42. Weld seams 104 are formed between said wedged end and the upper ring on the inside junction and outside junction of the shell frame 30 and the upper ring 40. The upper ring is preferably fashioned from arcuate segments which are secured by weld fillets 105 placed in the diverging space between wedged ends 43 and 44 of adjoining segments (FIGURE 11). The individual arcuate segments are preferably spaced and set by a flat bar 45 which is fixed between adjoining arcuate segments. Such a bar will usefully space, secure and position the chord segments for subsequent application of the fillet weld seam 105. The upper ring will receive the superstructure of the finally assembled gyratory cone crusher which includes the adjustment ring and the crushing bowl.

The fabricated plate 50 is supported by a plurality of lower arms or gussets 72 which join the bottom surface of plate 50' by sealing weld 106 and the hub 10 by sealing weld 107. The lower arms should be sufficient in number and sufiiciently spaced to provide proper support for the plate 50 and other structures on said plate. It is found that four or five such lower arms spaced about the hub will provide adequate support. At the corners of plate 50, corner upper arms (FIGURE 8) such as 73 may be placed in slots 31 of shell frame 30. Similar upper arms 71 (FIGURE 2) may be placed at the sides of the plate.

Upper arms

71 and 73 are secured in slots 31 by weld fillets. Such arms are sealed to the top surface of plate 50 as at 109, and are weld sealed to the curved wall 20 as at 110. A plurality of flange or shell frame ribs 78 (FIGURE 13) may also be interspersed between the upper arms and the corner upper arms to provide added support between the shell frame 30 and the top surface of the plate 50. The flange ribs do not engage slots in the shell frame 30 but are merely joined to the shell frame 30 by suitable weld means such as 117, and are joined to the top surface of plate 50 by suitable weld means such as 118. The number of such flange ribs which are to be added may also be varied according to the rigidity and support desired between the shell frame and the plate 50.

Feed platform ribs 75 are preferably coupled and disposed on opposite sides of a shell frame 30 by welds joining the ribs to shell frame 30 at 112 and to the upper 'ring 40 at 113. The feed platform ribs are modified with lug extensions 76 that may be used to support a feed box in the superimposed structures of the finally assembled cone crusher assembly. A plurality of ribs 77 may be additionally spaced about the shell frame 30 and joined thereto by suitable welds 114, and joined to the upper ring 40 by suitable welds 115. The number of such additional top ribs may be varied so long as they provide inthe aggregate sulficient support for the upper ring 40.

The top plan view shows the various structures of the shell frame assembly in appropriate positions and proper relationship. The upper ring 40 is seen as composed of arcuate segments joined by fillet weld seams 105. The plate 50 is fixed to the shell frame 30 which thickness is' shown by phantom outline. The center cast hub 10 and integral boss 11 are properly positioned within the central bore 56. The bottom fiat portion 18 in boss 11 is formed from the inwardly turned side walls 17 of the boss. The countershaft flange box 25 is shown secured between

ends

63 and 64 in phanotm outline. Intermediate the frame shell 30 and the center cast hub 10 is the curved wall 20 which partially encloses the center hub and has one end terminating against straight segment 14 and joined thereto by a fillet weld 102. The other end of the curved wall is seen terminating against the straight segment 14a and sealed thereto by weld fillet 102.

Upper arms

71 and 73 are joined to the top surface of the plate 50 and to the cruved wall 20. 'The curved wall 20 is partially supported by the inner annular band 60 of plate 50. The upper arms are partially supported by an isthmus or connecting band 59 which joins the inner annular band 60 with the outer portions of plate 50. The upper arms '71 and 73 engage the slots 31 in shell frame 30, and two corner

upper arms

73, 73 are shown extending from inner curved wall 20 to one pair of bolt bosses 68. Flange ribs or

shell frame ribs

78,78 are shown as extending from the shell frame 30 to the other pair of bolt bosses 68. Such ribs are joined to shell frame 30 and to the top surface of plate 50 by weld means. The bolt bosses 68 are apertured at 67. Such bosses 68 are fixed to the corners of plate 50 by a weld 111 or the like, and are superimposed over apertures 66 adapted to receive suitable bolts for fixing the plate 50 to an underlying foundation such as a concrete block.

Feed platform ribs 75 join the upper ring to the shell frame 30, and are shown as coupled on opposite sides of the shell frame 30. Lugs 76 are extensions of the feed platform ribs 75, and are used to support an overlying feed box. Top ribs 77 are shown in phantom outline as joining the upper ring 40 to shell frame 30.

The use and operation of my invention are as follows:

To cast a cone crusher frame in one piece is an expensive procedure, and such a cast cone crusher frame is bulky and heavy. A lighter, less cumbersome and less expensive cone crusher frame may now be assembled by joining fabricated parts to a center hub and countershaft boss, which is the only component in the assembly that requires casting.

A one piece casting consisting of a center hub 10 and an integral boss 11 is provided. The center hub has a passageway extending therethrough to receive an eccentric and a shaft. Keyway slots 9 are provided at the upper part of the hub to key eccentric bushing which will surround the eccentric. The boss 11 is a lateral extension from the hub and has a passageway 12 therein to receive the countershaft of a pinion. The pinion will be located within the enclosure of the boss and will engage the gear connected to the eccentric extending at the top of the hub. The boss 11 has a straight front wall with generally even surface which is generally parallel with side 51 of the fabricated plate. The side walls of the boss 11 are contoured to lie against sides 61 and 62 of the cut-out portion 57 in plate 50. The hub 10 lies in central bore 56 of plate 50 and is sealed to the annular wedged end 55. Projecting wedge 10a on the hub 10 contacts annular wedged end 55 at the respective high points of the wedges, and a fillet Weld seal 101 is placed in the diverging space formed between the two wedges. A curved wall 20 is spaced from hub 10 and encircles hub 10 up where the terminating ends contact boss 11. The curved wall 20 terminates in wedged ends 22, and the high point of this wedged end is placed against the juncture line between segment 14 and segment 16 in the side wall of boss 11. This contact forms diverging spaces which are filled with a fillet Weld seam 102.

A flange countershaft box 25 is placed so the continuous side walls contact wedged ends 63 and 64 in cut-out portion 57 of plate 50. Such wedged ends are joined by weld seals to the continuous side walls of the annular countershaft box 25. The flange box 25has a passageway 26 which is aligned generally with passageway 12 in boss 11, and the countershaft of a pinion will be inserted in said

passageways

12 and 26. The flange box 25 is beveled at its upper portion so that it closely adjoins the internal annular surface of shell frame 31 A rolled annular shell frame 30 is placed on the fabricated plate 50. The shell frame 30 has a scalloped lower portion contoured to engage the upper annular continuous walls of countershaft flange box 25. A plurality of slots 31 are also in the lower portion of shell frame 3! to engage upper arms 71 and corner upper arms '73. The arms, in part, rest on connecting bands or isthmuses 59 which are interspersed between cut-out segments 58 and which encircle center hub 10. The connecting bands 59 connect an inner annular band 66 on which the curved wall 20 is supported and the outer portion of the fabricated plate 50. These cut-out segments result in a fabricated plate of lesser bulk and weight. Additional shell frame ribs 77 are placed to join the top surface of plate 50 to the shell frame 30.

A plurality of lower arms or gussets 72 are welded to the bottom surface of the plate 50 and to the hub to provide support for the plate.

An upper ring 4%) is placed on the top of the shell frame 31 and such ring may be constructed from several arcuate segments which are sealed along their adjoining wedged ends by welds 11%. The upper ring 40 is supported by a plurality of top ribs 77 which join the upper ring to the shell frame 36 by suitable welds. Feed platform ribs 75 are also placed in generally the same position, that is, between the upper ring and the shell frame 30. These ribs 75 have lugs 76 connected thereto to support an overlying feed box in the finally assembled cone crusher.

The cone crusher frame assembly may then be anchored on a suitable foundation by inserting bolts through the common apertures 66 formed in the bolt bosses 63 at the corners of the fabricated plate 56 The various structures of a gyratory cone crusher may then be placed in the assembled cone crushed frame.

The foregoing invention can now be practiced by those skilled in the art. Such skilled persons will know that the invention is not necessarily restricted to the particular embodiments presented herein. The scope of the invention is to be defined by the terms of the following claims as given meaning by the preceding description.

I claim:

1. A cone crusher frame assembly having a cast component and fabricated components which includes, in combination,

a hollow cast center hub adapted to house an eccentric for rotating a shaft, a countershaft boss having side walls integrally cast with the hub, a passageway in the boss to receive a countershaft,

a fabricated plate with a plurality of sides, a top and bottom, said plates having a central bore partially encircling the hub, said plate attached to the hub at the central bore, a cut-out portion in the plate extending from the bore to one side of the plate, the cut-out portion engaging the side walls of the countershaft boss,

a countershaft flange box having a passageway aligned with the passageway in the boss, said flange box attached to the plate at the cut-out portion,

a rolled annular main frame shell attached to the top of the plate, said shell closely engaging the flange box,

a curved wall fixed to the plate intermediate the shell frame and the center hub, said curved wall surrounding the hub and attached to the side walls of the boss, and

an upper ring supported by and fixed to the main frame shell.

2. A cone crusher frame assembly as in claim I further characterized in that the shell frame is slotted along its 3 lower edge and a plurality of upper arms are seated in said slots and attached to the top of the plate.

3. A cone crusher frame assembly as in claim 1 further characterized in that a plurality of supporting lower arms are attached to the bottom of the plate and to the hub.

4. A cone crusher frame assembly as in claim 1 further characterized in that the shell frame is scalloped at its lower edge to closely fit the flange box.

5. A cone crusher frame assembly as in claim 1 further characterized in that a plurality of ribs are attached to the upper ring and the main shell frame, and some of said ribs are provided with projecting lugs to provide a support for a superposed feed box.

6. A cone crusher frame assembly as in claim 1 further characterized in that the upper inside portion of said countershaft flange box is beveled on the side towards the boss to closely follow the annular main frame shell.

7. A crusher frame assembly as in claim 6 further characterized by and including a plurality of ribs attached to the upper ring and the main shell frame, and some of said ribs provided with projecting lugs to provide a support for a superposed feed box.

8. A cone crusher frame assembly as in claim 1 further characterized in that the plate has a plurality of cut-out segments spaced around the central bore.

9. A cone crusher frame assembly having a cast component and fabricated components which includes, in combination,

a hollow cast center hub adapted to house an eccentric for rotating a shaft, a countershaft boss having side walls integrally cast with the hub, a passageway in the boss adapted to receive a countershaft and pinion,

a fabricated plate having a top, a bottom, and four sides, a bore of generally circular configuration, in the plate partially encircling the hub, said plate attached to the hub at the bore, said plate having a cutout portion extending from the central bore to one side of the plate, the plate closely adjoining the side walls of the countershaft boss at the cut-out portion,

an annular flange box proximate to one side of the plate and having a passageway aligned with the passageway in the boss, said flange box attached in close engagement to the cut-out portion so an upper part extends above the top of the plate and lower part extends below the bottom of the plate,

cugout segments in the plate spaced around the center ore,

an annular main shell frame attached to the top of the plate, the shell frame having at its lower edge a scalloped portion to closely engage the upper annular flange box, and a plurality of slots engaging upper arms on the top of the plate,

a curved wall attached to the plate intermediate the hub and shell frame, said curved wall extending to the side walls of the boss and secured thereto,

a plurality of supporting lower arms attached to the hub and the bottom of the plate,

and an upper ring attached to the shell frame.

10. A cone crusher frame assembly having a cast component and fabricated components which include, in combination,

a fabricated plate having a top, a bottom, and four sides to form a general rectangle, a bore of generally circular configuration in the center of the plate, curved cut-out segments in the plate around the central bore, connecting bands interspersed between said segments to connect an inner annular band of the plate with the outer portions of the plate, said bore partially encircling the middle of the hub, said plate attached to the hub at the bore, said plate having a cut-out portion extending from the central bore to one side of the plate, the plate closely adjoining the side walls of the countershaft boss at the cut-out portion,

an annular flange box proximate to one side of the plate and having a passageway aligned with the passageway in the boss, said flange box attached in closeengagement to the cut-out portion so that the upper half extends above the top of the plate and the lower half extends below the bottom of the plate,

an annular main shell frame supported on the outer portion of the plate, the shell frame having at its lower edge a curved scalloped portion to closely engage the upper half of the flange box and a plurality of slots engaging upper arms on top of the late,

a gurved wall intermediate the hub and shell frame, said curved wall supported on the inner band, the ends of the curved wall extending to the side walls of the bass and secured thereto,

a plurality of supporting lower arms attached to the hub and to the bottom of the plate, and

an upper ring attached to the top of the main shell frame.

11. A fabricated plate used in assembling a cone crusher frame which includes, in combination, a foursided plate of sufficient dimension to rest on a foundation for a gyratory crusher, said plate having a generally circular central bore adapted to closely fit the exterior annular Wall of a cast hollow hub, a cut-out portion extending from the central bore to one side of the plate, the cut-out portion having sides adapted to lie against the side walls of a countershaft boss integrally cast with the hub, and said cut-out portion further having sides proximate to one side of the plate to lie against the wall of an annular flange box.

12. The structure of claim 11 further characterized in that the plate has a plurality of curved cut-out segments spaced around the central bore.

13. The structure of claim 11 further characterized in that the plate has four sides in the general shape of a rectangle.

14. A fabricated plate used in assembling a cone crusher frame having a cast hollow hub With annular side walls, a countershaft with angular side walls integral with the hub, a flange box with a continuous Wall, an annular shell frame, a curved wall and supporting arms which include, in combination,

a four-sided plate of suflicient dimension to rest on a foundation for a gyratory crusher, a generally circular central bore in said plate,

a cut-out portion extending from the central bore to one side of the plate, the central bore dimensioned to closely fit the exterior annular wall of a cast hollow hub, the cut-out portion having straight sides to lie against the side walls of a countershaft boss integrally cast hub, said cut-out portion further having straight sides proximate to one side of the plate to lie against the continuous wall of a flange box,

curved cut-out segments around the central bore, con- 19 meeting bands interspersed between said segments to connect an inner annular band with the outer portions of the plate, said inner annular band adapted to receive a curved intermediate wall extendhlg to the side walls of the countershaft boss, said outer portion of the plate adapted to support an annular main shell frame, and said connecting bands adapted to support upper arms engaging the top of the plate in the main shell frame.

15. A structure suitable for receiving components of 20 a completed cone crusher which includes, in combination,

a cast center hub having side walls around a passageway adapted to receive an eccentric and shaft, a countershaft boss having side walls integrally cast with the hub, a passageway in the boss to receive a countershaft,

a flange box having continuous side walls and a passageway aligned with the passageway in the boss,

90 a fabricated plate with a plurality of sides having a central bore partially encircling the side walls of the hub,

a cut-out portion in the plate extending from the bore to one side of the plate, the plate partly attached to the side walls of that boss at said cut-out portion and the plate partially attached to the side walls of the flange box.

16. A structure suitable for receiving components of a completed cone crusher which includes, in combination,

a cast center hub having side walls around a passageway adapted to receive an eccentric and shaft,

a fabricated plate with a top, a bottom and a plurality of sides, said plate having a central bore partially encircling the side walls of the hub, and said plate attached to the hub at the central bore, whereby multiple components may be attached to top and bottom of the plate, and the hub.

References Cited in the file of this patent UNITED STATES PATENTS 2,860,837 Werner Nov. 18, 1958

Claims

1. A CONE CRUSHER FRAME ASSEMBLY HAVING A CAST COMPONENT AND FABRICATED COMPONENTS WHICH INCLUDES, IN COMBINATION, A HOLLOW CAST CENTER HUB ADAPTED TO HOUSE AN ECCENTRIC FOR ROTATING A SHAFT, A COUNTERSHAFT BOSS HAVING SIDE WALLS INTEGRALLY CAST WITH THE HUB, A PASSAGEWAY IN THE BOSS TO RECEIVE A COUNTERSHAFT, A FABRICATED PLATE WITH A PLURALITY OF SIDES, A TOP AND BOTTOM, SAID PLATES HAVING A CENTRAL BORE PARTIALLY ENCIRCLING THE HUB, SAID PLATE ATTACHED TO THE HUB AT THE CENTRAL BORE, A CUT-OUT PORTION IN THE PLATE EXTENDING FROM THE BORE TO ONE SIDE OF THE PLATE, THE CUT-OUT PORTION ENGAGING THE SIDE WALLS OF THE COUNTERSHAFT BOSS, A COUNTERSHAFT FLANGE BOX HAVING A PASSAGEWAY ALIGNED WITH THE PASSAGEWAY IN THE BOSS, SAID FLANGE BOX ATTACHED TO THE PLATE AT THE CUT-OUT PORTION, A ROLLED ANNULAR MAIN FRAME SHELL ATTACHED TO THE TOP OF THE PLATE, SAID SHELL CLOSELY ENGAGING THE FLANGE BOX, A CURVED WALL FIXED TO THE PLATE INTERMEDIATE THE SHELL FRAME AND THE CENTER HUB, SAID CURVED WALL SURROUNDING THE HUB AND ATTACHED TO THE SIDE WALLS OF THE BOSS, AND AN UPPER RING SUPPORTED BY AND FIXED TO THE MAIN FRAME SHELL.