US1791669A - Crusher - Google Patents

Description

E. H. FRICKEY Feb. 1o, 1493i.

cnususn Filed Oct. 5, IWB

2 sheets-'sheet 1` Patented Feb. 1o, 1931 PATENT OFFICE EDWARD H. FBICKEY, OF PASADENA. PABX, MISSOURI GBUSBZEB Application med October 5, 1928. Serial No. 310,453.

This invention relates to crushers, and with regard to certain more specific features to Crushers for such materials as limestone, shale, iron ore, coal, gypsum, asphalt rockand 6 similar materials which may contain moist means for preventing detrimental clogging of such a crusher and the provision of means for easily adjusting the relationship between various elements of said crusher. Other objects will be in part obvious and in part pointed out hereinafter.

The invention accordingly comprises the features of construction, combinations of elements, and arrangements of parts which are exemplified in the structure hereinafter described, and the scope of the application of which will be indicated in the following claims.

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

Fig. 1 is a right side elevation of the crusher;

Fig. 2 is a front elevation;

Fig. 3 is an ideal longitudinal section taken approximately on the line 3-3 of Fig. 2; and,

Fig. 4 is a plan view of a pair of impact plates. j

Similar reference characters indicate corresponding parts throughout the several views 5 of the drawings.

Referring now to there is illustrated 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. Ahead of said channel beam 11 is bolted another cross beam or brace casting 10 bolted sidewardly at points 12. This casting 10 also aids in holding the frame side castings 3 together. serves the same purpose. The frame 13 has its central opening normally closed by a door which may be opened for purposes of inspec- Fig. 1 of the drawings Rearwardly a frame 13 4 tion when occasion demands. It is to be understood that the beam 11 may be dispensed with, under certain conditions.

The cover 5, itself an assembly of compo nent castings serves to close the device and tie the end castings together at their upper portions.

The side castings 3, the frame 13 including its door 15, and the cover 5 serve to enclose a rotating set of hammers between them and are provided with through-bolts 21 for tightening the hammers. Other holes 23 in the discs permit adjustment of each set of hammers as wear on said hammers takes place. The adjustment is radial so that as the hammers wear shorter, compensation may be permitted.

The discs and hammers are mounted upon a shaft 25 running cross-wise of the machine. This shaft is borne in ring-oiled bearings 27 at each side of the device. The bearings are cast 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 a fly-wheel 29, and on its right end a driving coupling 31.

Cradled below the rotary hammers 17 are cage bars 33 cast en bloc. They are held in position by means of bolts 35 and cage liners 37. The liners are bolted to the side castings 3 and serve as end supports for the cage bars. They also protect from abrasion the surfaces to which they are bolted. 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-casting 3 and cover 5 and serve as renewable safeguards against abrasion of said parts. The chute 7 is lined with liners 15 at points subjected to abrasion.

Forwardly of the machine, and on the upper corners of the side castings 3 are fastened guide castings 41 (Figs. 1, and 2'). These castings 41 are provided with rearwardly and downwardly sloping guide slots Adjustable bearings 47 are slidably held in the slots 43. These bearings are suitably held in an adjustable position by means of under- `1n number and saddle members 49 upon which said bearings rest. The members 49 are countersunk into the bearings 47 and prevent sideward motion of said bearings. The members 49 are held in position by a pair of adjusting bolts 51. Mounted in and between the bearing blocks 47 is an upper cross-shaft 45 upon which is mounted a plurality (four shown in Fig. 2) of supporting rolls 55. The rolls 55 serve purposes -to be described and may be varied position to suit certain types of breaker plate chainsV to be mounted thereon.

Aflower cross shaft 57, similar to the upper cross shaft 45, extends laterally between the side castings 3. It is mounted in suitable bearing blocks on each side of the machine and extends outwardly to be 'driven by an electric motor 58 operating through a speed reducer 60.

The cross shaft 57 supports end sprockets 59. These are placed just within the limits of the side castings.

Over the sprockets 59 of the lower shaft 57 and the supporting rolls 55 the upper shaft 45 is placed a belt or chain 67 comprising links or feeder plates69 formed of wear-andimpact resisting material (see Figs. 3 and 4).

Each link 69 comprises a bar at the ends and on one side of which are formed outwardly jutting gudgeons 71 adapted to ride between the teeth of the sprockets 59 and to be driven thereby. These gudgeons are properly rounded to kinematically mesh with proper teeth on the sprockets.

On one edge of the links 69 are formed projections or hinge portions 73. On the other edge are formed similar projectlons 75 in staggered relationship to the said portions 73. Thereby a series of links 69 (see b Fig. 9) may be interitted. Through the various sets of interfltting hinge portions 73 and 75 are bored or otherwise formed aligned holes 77 adapted to receive a link pin or rod 79. The holes 77 pass through the said gudgeon 71 and are therein countersunk. The rod 79 is riveted over at the countersunk holes as the chain is made. It is formed flush with the gudgeon ends.

It is .evident that the gudgeon serves to mesh with the sprockets 59 and may be driven thereby. Hence the chain is driven, the4 sprockets rotating clockwise (Fig. 3).. The supporting rolls 55 act as idlers and support Y the chain at its upper end. The diameters of rolls 55 are approximately that of the sprockets at the base of their teeth. The gudgeons ride free of the rolls 55.

A platen 81 is slidably mounted below the chain and on side supports 62 and is movable forwardly and rearwardly. It is controlled by the forward and rearward action of a rod 64 passing therethrough and out of side slots 66 in the frame. The slots 66 permit movement of the rod 64. The platen receives the impact of blows exerted b the hammers on the material being crushe and is therefore provided with an anvil 83 of hardened material which is removable and replaceable. The anvil forms a continuation of the chain feeding surface. The platen 81 as a whole may be adjusted for obtaining dilferent de es of the iineness of material in the crusiring operation and for taking up wear.

The shaft 64 is pinned at outward points 68 to a pair of sidewardly located bars 32, the bars 32 passing forwardly under the main shaft of the machine and having rounded portions 72 passing through lugs 74 in the frame. The rounded portions 72 are slidable in the lugs 74 and have threaded thereto adjusting nuts 78, the latter bein ada ted to be locked after an adjustment. lgt will e seen from the above that the thrust on the laten is absorbed by the bars 32 in tension, t ereby providing a rugged construction.

One of the prlmary objects of the machine is to provide a feeding means inthe form of the rugged chain lates 69 for feeding material down to the p aten 81, the latter absorbing the direct impact of the hammers on the material and the gras sifting the material. Heretofore when the platen was extended up to include the region now occupied by .the chain of breaker plates, wet material would stick. B means of this invention the breaker plates e ect the feeding action and the rugged platen 81 serves to better break up the material.v The combination of these features is adapted to effect improvement not had by using either one alone.

In view of the above, it is believed that the various features of this invention be clear without further elaboration, and it Will e seen that with the apparatus herein described, the several objects of the invention are achieved and other advantageous results attained. c As many changes could be made in carrying out the above construction without departing from the scope of the invention., it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

I claim: l

1. In a crusher, rotary crushing elements, cage bars associated therewith, an endless chain of feeder plates adapted to feed material to the crushing elements and an impact platen between the chain and the bars adapted to transmit material from the former to the latter and receive the impact of blows exertd by the crushing elements on said materia 2. In a crusher, rotary crushing elements, cage bars associated therewith, an endless chain of feeder plates adapted to feed material to the crushing elements and an impact v cage bars associated therewith, an endless chain of feeder lates adapted to feed material to the crus in elements, an impact platen between the ain and the bars adapted to transmit material from the former to the latter and receive the impact of blows exerted by the crushing elements on said material, said impact laten being adjustable to and from said crus in elements and means functioning in tension or holding the platen in a predetermined position.

4. In a crusher, crush' elements, means permitting passage of crus ed material from the apparatus, a chain of movable feeder plates adapted to feed the material to the crusher elements, and a fixed platen between the said movable feeder and said means permitting passage of material., said impact platen being adapted to recelve the impact of blows exerted by the crushing element upon said material and having a tangential arrangement with respect to said chain of plates.

In testimony whereof, I have signed my name to this specification this 2n day of October, 1928.

EDWARD H. FRICKEY.

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