US1547385A

US1547385A - Rock crusher

Info

Publication number: US1547385A
Application number: US623041A
Authority: US
Inventors: Alvah D Hadsel
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-03-05
Filing date: 1923-03-05
Publication date: 1925-07-28
Anticipated expiration: 1942-07-28

Description

July 28 1925..

A. D. HADSEL ROCK GRUSHER I Filed March 5Q 1925 INVENTOR. 4. 0. 6600561.

A TTORNEYS.

2' Patented July- 28, 1 92.5.-

UNITED STATES I l 1,547,385 PATENT OFFICE.-

ALVQHHD. HADSEL, or sanrimncrsco, cAmroanm.

noon CIR-USHER.

Application filed March 5, 1923. Serial mi; 623,041.

' T aZZ whom it may concem:

Be it .known that I, ALVA}; D. Hansicn, a citizen of the United States, and a resident of San Francisco, "county of San Francisco, State of California, have invented a new and useful Rock Crusher, of which the fol lowing is a specification.

The present invention relates to improvements in rock crushers, and has particular reference to a centrifugal rockcrusher designed for continuous operatign. The principal object of the invention is to provide a machine of the character described that will be highly effective, that is simple in construction and well balanced. A further -tion so as'to allow of the successive exposureof eight differentedges. Other objects and advantages will appear as the specification proceeds.

The preferred form of my invention is.

illustrated in the accompanying drawing, in

which Figure 1 shows a view of my device partly in plan, partly in section, taken along line A-'-A of Figure 2, and partly in section taken along line B-B of Figure 2, and Figure 2 a side View of my device partly shown in section. While I have shown only the preferred form of the invention, it

should be understood that various changes or modifications may be made within the scope of. the claims hereto attached without departing from-the spirit of the invention.

-My rock crusher (1) comprises a frame (2) consisting of two cylindrical elements 3) and (4). arranged in concentric relation and connected by means of webs The,

outer element (3) is provided with a plural: ity of openings (6) adapted to be-closed when desired by means of plates (7) bolted thereto as shown at .Any of these openings may be used toallow the belt (9) topass therethroughwhichv latter. is protected from rocks by means of a metal casing (11) projecting inwardl openings and bolte to the cylindrical element (4) as shown at (12) and surrounding the area controlled by the belt (9). The

through "one of the inner element (4) consists of a tube adapted to rotatably receive, with a bushing (13) interposed, the main shaft 14) of my de-- vice, which latter is supported by means of a thrust bearing (16) resting on the tube.

wall of an oil chamber (17) surrounding the whole tube. The outerv wall (18) of said chamber which is connected to the inner wall (4) by.means of webs (19') extends above the bearing (16) so as to allow the chamber to be filled with oil to a height exceeding "the level .of the bearing. The oil chambers are closed at the bottom by a bottom plate (21) which is'provided with a recess (22) allowing the oil to flow underneath the shaft (14) so that complete circu lation of oil around the shaft is provided. To the upper end of the shaft is secured the rotor (23) comprising acylindrical,

member (24), a base plate (26) and a top This tube at the same time forms the inner plate (27 The base plate is provided with" 'a central hub (28) toothed as shown at (29) to return oil that may splash upwardly, and

a downwardly extending flange (31) around which is placed the cylinder '(32) serving'as a pulley for the rotor. The lattercylinder is secured to the-base plate by means of bolts (33), some of which extend upwardly so as to pass through the top hold the same place. 0th top and botlate (27) and to tom plates are provided with peripheral flanges (34) adapted to be received in registering peripheral grooves of the cylindrlcal member (24). preferably of three sections (36) leaving spaces between the same as shown at (37) through whichthe rocks may be thrown outwardly by centrifugal force.

The latter member consists The outer frame member (3) supports the bowl (38) which latter is disposed on the same plane with the rotor and in concentric relation to the same, This bowl is open, at the bottom except. for a small peripheral flange (39) on which are supported the im-' pact receiving plates or blocks (41). The

latter are disposed at a suitableangle to radial lines, and are made of square vertical section. They are held in place by means ,of

plates (42) bolted to the flange (39) by means of bolts (43) the plates engagipg the lower edges of the blocks. The upper edges of the Same blocks-are held in place by the, Y

top plate (44) of the bowl which is provided with correspondingslots or grooves as dotted at (41) so as to hold the blocks in place.

A particular feature of this arrangement is that these blocks may be turned around eight times to expose a new edge to therocks vthrown outwardly by the rotor. Above the bowl (38) is mounted the hopper (46) provided with anopening (47-) communicating with the neck (48) of the rotor.

Oil is allowed to enter "the chamber (17) throiigh the pipe (49). A cylindrical wall (51) surrounding the pulley (32) serves as a division wall and prevents the rocks falling through the bottom or the bowl from striking the pulley. The broken rocks drop on chutes (52).

The operation of the device will be readily understood from the foregoing description. The rocks to be crushed are placed in the hopper by any suitable means and dropped through the opening in the bottom of the same lnto the rotor (23). The latter is rotated by means of any suitable power engaging through the belt (9) the pulley (32).

Particular attention is drawn to the manner in which the rotor is supported by the behind the sections (36) and to form a guidewa for the rotating rocks, thereby taking t e main strain off the edges of the sections (36). The rocks are thrownviolently against the blocks (41) and come in crushing contact with the same, whereupon they drop through the open. bottom of the bowl (38) into the chamber defined by the outer frame element (2) and the cylinder (51), so that at no time they come in contact with the pulley (32) or the belt (9), which latter is additionally protected by the casperipheral relation to the rotor each at an angle to a radial line therefrom and each block being reversible to eight different positions for exposing any of eight angular edges to the impact of the matenal.

2. In a centrifugal rock crusher, a rotor adapted to hurl the rocks tangentially therei from, a cylindrical member surrounding the rotor, a serles of square impact blocks, up-

per and lower grooved annular members associated with said cylindrical member engaging and clamping said blocks in spaced relation peripherally around the rotor, said blocks each having eight angular edges of equal length and. being reversible in the vas 4 grooves to eight difierent positions to bring any one of t ceiving position.

' ALVAH D. HADSEL.

e eight edges intoimpact re 1