US1788388A - Crusher - Google Patents

Description

Jan. 13, 1931. E. H. FRICKEY 1,788,388

CRUSHER Filed oct. 5. 1928 2 sheets-sheet 1 E. H. FRICKEY Jan. 13, 1931.

CRUSHER 2 sheets-sheet -2 Filed Oct. 5. 1928 Patented Jan; 18, 19:81`

- 'Unirse srArss ATENT -FFICE Einw-Rnv FRIcRRgVoF PASADRNA PARK, ivrIssoURI' cRUsHER y :This invention relates .to Crushers, and with regard to certain more specific features to crusliers for such Vinaterialsfas limestone, shale, iron, ore,f coal, gypsum, asphalt rock and similar materials which may contain moist impurities such as clay or mud. Y

Among the several objects of the inventionmay be noted the provision of a crusher having movable breaker plates adapted to follow described, and the scope ofthe application of l which will be indicated in the following claim-s. Y

' In the accompanying drawings, in which are shown several of various possible embodiments of this invention,

n Crusher lFigQ is -a front'elevation; -Q' Fig. 3 is an ideal longitudinal section `taken approximately on the lineS-B of Fig.`2;

an alternate form ofthe invention ;-and,

Fig. 5 is afragmentary view showing cer-r tain chainbrealier plate details. Y

Similar reference characters indicate corviews Vof the drawings.

responding Vparts throughout tli'ejseveral` Referring now to the drawings therev isy illustrated at 1 a frame comprised offside castings 3,V a cover 5 and a hopper chute. 4.0` Forwardly boltedat 9between'the two side castings 8,

its central opening normally'closedby--a door Fig. 1 is a rightsidefelevationl'of they n end a driving coupling 31. v Fig. 4 is a view similar to Fig. 3 showing is a cross Vchannel beamll (see 4). Thischannel beam` 11 serves to tier` the side castings together at the forward endv `of the Crusher. Ahead of said channel beam 45 11 is bolted another cross beam or 4brace casting 10`bolted sidewardly at points 12. This',

casting 10 also aids in holding-the frameside A be understood that the beam 11 maybe dislpensed'with, under certain conditions.

i The `cover 5, itselfan assembly `of com ponent castings serves to close the deviceand ,tie the end"` castings-together their upper portions. I, Y y i Tne Vsidecastings 3, the frame 13 including itsidoor 15', andthe cover 5 serve to enclose arotating set of hammers 17 mounted between .discsl9- The .disc faces are machined to rejceive the hammers between themand are provided with throughbolts 21 for tightening the hammers. Other holes 23 in the discs' V"permit adjustment of eachfset ofhammers as wear onsai'd hammerstakes place. The adpistment is radial' sotliat asthe hammers wear shorter, compensation may 'be' peri proportions as isthe' whole machine. On the 15 which maybe opened .for purposes of inspection whenfoccasion demands. ltsisto' left end of the shaft,"and outside of'y the 'mal chine is borne a ii'ywheel 29, and on its right Cradled below the rotary hammers 17 are'l,`

cagebars or' gratings, casten bloc l(see Figr.3) Theyare held in position by means ofbolts 35` and cageliners 37; `Theliners farefbolted to the'side castings 3 and serve asend supports for the cage bars. They i `alisoprotectV the surfaces "to which they are Vbolted from abrasion. y These bars serve to permit .only a material which` has'V been thebasefof themachine.-

fcrushedfdown to av proper size to pass out of f At the'ends of the `hammer-disc assembly, or rotor, are placed end liners 39.` These are bolted to the end-,casting `3 and :cover 5 and serve as renewable"safeguards against abraslionf of said parts. vThe chute 7 is lined"y l with-liners 14 at points-subjected to abrasion;

' Forwardly'of the machine, and on `the :upper cornersof thuevside castingsf are fastened 'guide castings'lll (Figs.v 1 andg2),A lThe'se castings` 41 are' (provided with Vrearwardly and downwardly sloping guide slots 43. p

Adjustable bearings 47 are slidably held in the slots 43. These bearings are suitably held in an adjustable position by means of underslung saddle members 49 upon which said bearings rest.` The members 49 are countersunk into the bearings47and prevent sideward motion of said bearings. Themembers 49 are held in positionby avpair of adjusting bolts51.

Mounted in and between the bearing blocks 47 is an upper cross-shaft 45 upon which is mounted a plurality (fou-rsliown -in-Fig 2) Vof supporting rolls55. The rolls 545 may be p -,varied1-in` number and position to suit certain f bearing block'salG'. atw eachside of the ma-A A lower cross shaft 57, similar to the upper cross'shaft' 45,eXtends laterally between the side castings 3.y Itis mounted: in adjustable chine. The blocks 16 are slidablyarranged insubstantial'ly horizontal guides 18, formed *157 ata-n opening'26;

. in sidewardly placed castings 20. The castings20 may either be-forined'integrally with the side castingsY 3 Aor be bolted thereto. It is obvious' that `the shaft 57 may be moved forwardly or rearwardly by ysliding the bearing blocks 16 in their guides'18. Substantially horizontalelongated passages 22V (see Fig. 1)

r are formed in the side castings 3in' order 'to permit said movement of the llower cross shaft57. A proper tongued and grooved formation of the bottoms of the guidespre# vents sidewise motion ofthe blocks and yet permits their .removalv at one end of their travel. Eachv of a pair of leversv 28 vis piv-V oted to a side casting 3 at the upper front portion of said'casting, that is, beneath the` guide casting 41. 'Each'reaches downwardly and embraces 'ai portion of its respective shaft The openings A26 are of such length, that if the levers 28V be swung fo'r'wardly orV rearwardly the blocks. 16fmay tiiaverse their-complete predetermined path.

Each'opening. 30 permits ample' swing p-f itscorresponding lever 28.

Itis obvious fatthisstage of thef'dscription, that by swinging the levers 28 upon,

. their. pivot rod 2, that the lower cross. shaft 57-mayv be moved' forward-ly orV rearwardlyk off the Crusher;

rearward end of the machine.- These side bars may be adjustedby means of nuts and lock nuts so that they may govern the swing position of the Vlevers 28 and other parts to be described. VFig. 3 shows one of two slots 42 formed in the side castings 3 which accommodatethe forward and rearward motion of the clamping through-bolt or lshaft. 36. AThe shaft 36 reaches laterally across'theinachineKFigs. 1 and 3), as does Reference to Fig. 3 indicates that the cross Vshaft 57 has fastened thereto sprockets 59 placed'just within the limitsV of the side castings 3./ Y

Over the. sprockets'59 of the lower shaft 57and the-supportingrolls 55 of'the upper shaft 45 is placed a'ibelt or chain 67` com-v prising linksor-breaker plates 69 formed of solid fmanganesero'r other wear and impact resistinginaterial (see Figs. 3, 4 and 5). f

Each linkv 69-comprises a stagger shaped bar adapted to be pinnedrtothe next'bar and havingiineansformed to cooperate with the Ysprockets 59 such that saidgsprockets can effeet driving ofthe chain of breaker plates. 'ln the above description, certain detailed features have not beenv set out, inasmuchv as they are set outinore particularly inLPatent No. 1,605,181, dated November2, 1926; Y'

The-improvement herein set out comprisesY the addition Aof a. sprocket shaft 71 carrying sprockets 73 adapted to vreceive t-he chain of breaker plates 1in driving. relationship. It

willbe noted from Fig.l 37that thefspro'ckets 73 are sorpositioned` with respect to the-pe- 'riphery of the hammer that the vchain is juxtaposed-'near the hammer elements over a substantial arcuate portion, instead of' merelv tangeiitially. as has been the casebefore;

The liners v39 serve to guide the chain sothat it does not engage; thefhammers. f The llower reach' 7 5 of thechain between the sprockets 73 and 59 does .not require Iguiding' inthe form of'Fig' 3-,becaiise-said*reach is short. M

The advantage ofthe aboveeconstiuction is thatthe breakerplates traverse path which. permitslongerV juxtaposition' of breakerjfpl'ates :aiidghammers'so that ,an increase crush-ing effect is obtained with4 the.H

advantage of having movable breakerplates adapted to; draw material into the hammer paths.

The linked chain 67 and the hammersv 17 form' the crushing elements ofv this machine,

The links V'cover the 'width of the-hammer rotorAL in projection. 1 lnorderjto withstand the attendant yimpact of the crushing 'opera-V tion the chain' 67j, or, breaker platesy 69,:are

backedby-a suitablerugged platen 81, 'ThisI j platen 81Lispivoted tothe end castings- 3 by thesaidpivot rod ,2: whichl forms thev pivots forthe outsideadjusting-arms28 (see Figs.

2 and 3).' .Itbacksthe chain of breaker [plates .at the point ,off impact..- lt mayfbead:

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justed to diliferent required degrees of slope of the breaker plates or to dill'erent degrees of wear in said members by means of the said the rods 32 and levers 28, after loosening shaft 36, that the backing platen 31 is automatically adjusted by means ot the said rod 36. L i v In Fig. 2 is illustrated the driving means machine the shaft 57 extends outwardly to receive a splined universal joint 111. The

joint 111 is provided withv a drive shaft 113. The shaft 113 is in turn'driven through another splined universal joint`115 by a primary drive shaft 117 emanating from a suitable driving source.

The shaft 57 is driven in clockwise direc tion as viewed in Figs. 1 and 3. It is obvious that, due to the universal drive def scribed, that the shaft 57 may be driven in any of its adjusted positionsandthereby drives the breaker plate chain downwardly at the point of impact. tate counterclockwise as viewed in Figs. 1 and 3. Their linear speed at the crushing point is preferably substantially7 higher than that of the moving plates, whereby material is carried down to the gratos.

The opertion of the machine is as `follows:

Material such as lump rock is fed into the hopper 7. Gravity carries it downward on the sloping breaker plates into the paths ot the rapidly rotating hammers 17.. -Vlhese hammers impact the lumpy material against theV slowly Vand downwardly moving breaker plate chains, thereby breaking most of the material down to a size small enough to pass the cage bars 33. That which hasV not been broken small enough can netpass the cage bars and consequently goes around with the hammers 'for a second crushing. i' rEhe liners la and'37 protect the frame against wear. i

The breaker plates of course transmit the force of the blow given to them, to the back-i ing platen 81. Although the upper reach of chain between sprockets 59, 7 3 is not provided with a backing platen,` vyet this is not a disadvantage, because the primary impact does not occur atthis region. It is however clear that a backing platen might be arranged at this region. One advantage of moving the breaker plates is to carry the material down into the hammers.

Anotherl advantage of moving the breaker plates is to equalize wear on them. vThe advantages of having the adjustments de- The hammers 17 roi are 'achieved and point of tangency.

scribed," 'for' purposes of `grading material fandtoftakeupwear are obvious. The Viinproved*means for making'fthese adjustments saves timein making them for two such adj ustments may be made at once and while the machine vis in motion." The cop'erati'on ot lo the universal drive Jpermi'tssuchV adjustments. InFig; l is lsfhown a -modied'form ofi the machine in which'the` grating 33 is eliminated and the `shaft `*Z1 jis re-positioned -so thatxa greater arc ofijuxtaposition is had between the chain and' the hammers i In this case liners119are added between 'the chain reaches oneach side oi the casing so as :toaid in guida ing the chaink and supporting it against? the grinding action? In this modifiedformthe applied to shaft 57; At the left side of the i back afterthe center line of' thefmachine is passed, thus enhancing thecrushingeiiect,

but at'the same timethe movement of the chain Vprevents gathering of Vparticles l 'at their. u

hollo'wportion. l j Y I I In viewoftheabove, it is believed that the various features of thisV i'nventionwill be clear without `further elaboratiomand it'will .be seen thatl withthe apparatus herein' des@w scribed, the severaibbjscts of @hein-vennen j other advantageous results "`-Asmany`changes could'be made in carrying'outfthe' above constructionwithout des.A

parting from the scope of' the" invention, 'it

is iiitended that allmatter contained in the above description `or shown inf the accom- .panying drawings shall4 be interpreted as illustrative and not in Va limiting "I claim j Y 1;" In acrush'enthe combination of rotary crushing elements, a chain o1' vmovable im. pact plates coopera-'tine therewith and adapted to receive the impact of blows of said ele-1 ments on materialbeing crushed, means backing said chain at the point-.of impact, said impact plates moving in juxtaposition `to said elements over an arc.- v

2. In a crusher,the combination of rotary; crushing elements, movable impact plates colow region"- V121-, the material "tends" to roll operating therewith, means for moving said I plates in a substantially straight line tangentially toward the periphery of said crushingelements, a platen backing said impact-; plates at the point of tangency, and means for movingsaid impact plates in juxtaposition to saidelement over an are beyond the 3.- In a cruSher, the combination of rotary crushing elements, movable impact plates cooperating therewith, means for moving said plates in a substantiall straight line tangentially toward the periphery of said crushing elements, a platen backing said impactW Y said point of tangency.

plates at the point of`4V tangency, means" for moving said impact plates in'juxtaposition to said elementfover. an are beyondthe point of tangency,Y and supporting andguidmg means located endwise of Saidimpact plates VWhere they move arcuately'.` 'I Y Y 4f. In a'crusher, the combination of rotary crushing elements, movable Vimpact plates cooperating therewith, y means for Vmoving said plates in asubstantially straight line tangen- `tially toward the peripherylof said crushing elements, a platen-backing said impact *plates` atthe point of Vtangency, means for moving Asaid impactqplates in juxtaposition to said element over an arc/'beyond the point of tangency, supporting and guiding means located endwise of said. impactplates Where they i move arcuately, and supports for the impact plates located at the endsthereofandi at the 5. Inra crusher,*the combination crusliinzgf` elements, a chain of' movable impact plates cooperatingtherewith and adapted to receive the impact of blows ofV said elements onrmaterlal bemgfcrushedmeans backing said cham, said impact platesmovi-ng 1n juxtaposition to saidV cruslingelements-over an armandfarcuately positioned grating eX- tending the arcof said impact plates.

6. Ina Crusher, the combination of rotary f f i crushing elements, a'chain vof'movable lim-L pact plates .cooperatingftherewithand adapted to receive the impact ofl blows o -said ele- Y ments on material'beingcrushed, saidimpact plates moving injuxtaposition tofsaid crush- Y ing elementsover an are, and arcuately positionedv grating extendingy the arc of said impact plates. Y

' Inv testimony whereof, I- have signedmy name to this specification this 2nd day of 0ct0ber,1928. y Y

EDWARD H.FRI CKEY.

of rotary i

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