US1560049A - Crusher - Google Patents

Description

Nov. '3,1925.

, E. H. FRCKEY cnus'HER Filed Dee. 5, '1924 Patented Nev. 3, 1.925.'

u UNITED STA EDWARD H. raIcxnY, or sr. Louis, MISSOURI.

- cansnnn.

Application led December 5, 1924. Serial No. 754,206.

l l T all whom it may concer/n.: Be it knownthat I, EDWARD H.' FRIGKEY, a citizen of the-United States, and a resident of St. Louis, Missouri, have invented an Im- 5 provement in Crushers, of which the following is a specification. This invention 'relates to Crushers, and wir regard vto certain more specific features to rrushers for such materials as limestone, l0` shale, iron ore, coal, gypsum, asphalt rock and similar materials which may contain moist impurities such as clay or mud.

Among the-several objects of the invention maybe noted the provision of a simple and rugged Crusher, the provision of means for preventing detrimental clogging of such a Crusher and the provision of means .for easily adjusting the relationship between f various elements of said crusher. Q-fl? The invention accordingly comprises the 'l' features of construction,- combinations of elements, and arrangements of parts which are exemplified in the structure hereinafter described, and the scope of the application '-5 of which will be indicated in the following claims.

In the accompanying drawings, in which is shown one of various possible embodi ments of this invention,

-Fig. 1 is a right side elevation of the Fig. 2 is a front elevations and Fi 3 is a longitudinal section taken on the line 3-3 of Fig. 2.

Similar reference characters indicate correspondin parts throughout the several views of t 1e drawings.

Referring no w to the drawings there isillustrated at 1 a frame comprised of side castings 3, a cover 5 and a hopper chute 7. Forwardly bolted at 9 between the two side castings 3, is a cross channel beam 11 -(see Fig. 3). This channel beam 11 serves to tie the side castings together at the forward end of the crusher. Rearwardly a frame 13 serves the same purpose. vThe frame 13 has its central opening normally closed by va door 15 which may be opened for purposes of inspection when occasion demands.

The cover 5, itself an assembly of component castings` serves to' close the device and tie the end castings together at their.

upper portions.

The side castings 3, the frame 13 includ- -ing its door 15, and the cover 5 serve to enclose a rotating set of hammers 17 mounted between discs 19. The disc faces are niachined to receive the hammers between them and are provided with-through-bolts 21 for tightening the hammers. ther holes 23 in the discs permit adjustment of each 'set of hammers as. weer onsaid hammers takes place. The adjustment is radial sovthatas the hammers wear shorter, compensation.

may be permitted.

The discsand hammers are mounted upon a shaft 25 running cross-wise of the machine. This shaft is borne in ring-oiled bearings 27 at eachside of the device. :The bearings'arecast with the end castings'and are of generous proportions as is the whole machine. On the left end -of the shaft, and

outside of the machine is borne the fly-wheel 221), and on its right end the driving pulley Cradled below the rotary hammers 17 are cage bars 33 cast en-bloc. They are held in position by means of bolts 35 andcage'liners 37. The liners are bolted to the side caste ings 3 and serve as end supports for the cage bars. They also protect the surfaces to which they are bolted from abrasion. These bars serve to permit only material which has been crushed down to a proper size to pass out of the base of the machine.

At the ends of the hammer-disc assembly, or rotor, are placed end. liners 39. These are bolted to the end-castings 3 and cover 5 and serve as renewable safeguards against abrasion of said parts.

Forwardly of. the machine" are mounted the uprights 41 fastened to a foundation end to the machine by suitable means; and!- trussed .togetherby means of the crossmem- At their top, these uprights have mounted.

betweenthem a shaft 45, borne in adjustable earings 47. vThese bearings are fastened to the 'upper ends of the uprights by suitable 'slides 49 and rivets 51. Set screws 53 bring ',links are about twenty inches broad andthe 'by a suitable ruggedplateii 63. This platen 63 is pivoted to' theend castings 3 of the frame l by inean's of shaft 65 and backs the breaker plates at tliepoint of impact. -It may be adjusted to different required degrees of slope vof the' breaker plates, or to dillerent degrees of wear in said meiiib'ers by4 means of the lateral -shaft 67' 'passing through slots' in I'ianges 68 of the platen and slots in the end castings. Outside. of the end castings-the shaft 67 is bolted at each s lows:

end to side bars 69 which extend througli lugs 7l ot the end'castings. These side bars may be adjusted by means of nuts and lock nuts-7 3 so that they may govern Vthe swing position of the platen 63 about its shaft 65. The auxiliary shaft working in slots 'similar to the above mentioned ones, serves to hold the platen in position by clamping in' tension to the end castings.

The hammer shaft 25 is of course driven by means of pulley 3l and at a rate such that the hammers have a linear speed of several thousand feet per minute in the di, rection shown by the curved arrow in Fig.`3.

The chained breaker plates areA slowly driven about four feet per minute by means 'of a separate motor 77 and- Worm speed reducer 79, in the direction shown by the straight arrow of Fig. 3. A cleaning scraper 8l keeps the breaker plates freeiof dbris. x

The operation of the machine is as fol- Materia'l such as lump rock is fed into the hopper-7. Gravity carries it downward on the sloping breaker plates into the paths of the rapidly rotating hammers I7.` -These hammers impact the lumpy material against the slowly moving breaker plate chains 6l thereby breaking most of the material down to a size sinall enough to pass .thecage bars 33. That which lias'not been broken small enough can ot'pass the cage bars and consequently goes around withl the hammers for'a second crushing. The liners 39 'protect the lframe against wear. The breaker i lattes of course transmit the force ofithe low given to them, to the backing platen 63. i

' lOne of, the purposes of moving the breaker plates is to provide means for auto-'. matically cleaning them. Heretofore, mud, clay or other soft material might and would gather on the stationary' plates just clear of the path of the liaiiimers, that is, just above them on the stationary plates* This mateis. gradually broughtl into the pat'h ofthe rapidly pioving hammers and is; thereby scraped oll. The scraper 8 1 fuilthersthis result. This scraper is of particular use when 'the breaker plate is adjustedtofa position some distance fronrtlie path ofthe revolving hammers. This vadvantage is gained without sacrificing the necessary -high relative velocity relationship between the hammers and breaker plate, in -so far as the breaker platesiniove at a relatively-slow speed.

In the drawings lthe hammer type., of Crusher. is illustrated. The improvements herein set forth apply with equaljforce' the various features of this invention will Abe clear without further `elaberation,and it.'

will be -secii that with the; apparatus hereiirf:

described, the several objects 'of ftli'e inven tion are achievednnd other results attained.

As 'many changes could be. made 'in carryfing outthe above construction without deadvantageous parting from the scope of the invention, it is intended that all matter contained in thef the impact of blows of said elementson material being cruslied,vand a said chain at the point ofiinpact.

'2. In a Crusher of the .type described, the` platen backing combination of rotary crushingelenicnts, 'an

endless cliain of .movable impact plates cooperating therewith and adapted to receive the' impact of blows of said elements on` material being crushed, :iiiv adjustable'platen hacking said` chain at the point of impact, and a combination ofi-.ifotafry crushing elements, an

scraper cooperatingwitli' said `chain Ato-clean it. 3. In a eruslipr ol'rthe type described, the4 endless chain ofifiioyable impact plates cooperating therewith and adaptedt'o receive the'4 impact of blows -of said elements on material being crushed, an adjustableplaten backing'j'said chain' at the point ofjiii act, andv a scraper vcooperating with sailfc ain to clean it beyond the impacting" area.

4.- In a Crusher of the type described, the

combination. of rotary 'crushing'elements an endless Chain of li'jelatively l slowly moving iso -efodess chain of relatvey slowly moving impact plates cooperating therewith and adopted to receive the impact of blows o Said elements on materielbengg ol'ushe., and

m adjustable paben backing said chain at the point ot' impact. y G. En a ext-usher, the combination of crushing' `elements opeletiufj et e relatively high "velocity, an endless chain ot' impact pla/ees cooperating therewith and adapted 'to receive the impact of ows of said elements on material being; crushed end moving et e Het ativey tow velocity its. the same direction et cto/te the point of cooperation, and a pieten bocking seid chain of plates at seid point of eooperaton.

7. n a crushel', 'the 'combination oit' erusing elements operating at o reatvey high. veoety, an endless chain of impact plates cooperating theewith and adopted. 'to feceive 'the impact of blowsof said eements on materia being crushed, and moving ato relativey low veocty in the/Same decton o at the point of cooperation, en adjustebe platen boeking said chain'o" petes at said point of cooperation, and o, scrape? for said chain of plates adapted to clean ehem oftel: they have passed said point of cooperation.

in testimony whereof, have sgmel my neme to thsvspecicaton this 3d day of @ecemoerQ 1924.

EDWARD' et. Femme

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