Information
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Patent Grant
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6227472
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Patent Number
6,227,472
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Date Filed
Saturday, November 20, 199924 years ago
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Date Issued
Tuesday, May 8, 200123 years ago
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Inventors
-
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Examiners
Agents
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CPC
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US Classifications
Field of Search
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International Classifications
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Abstract
The present invention 10 discloses a device for crushing stone 12 having an externally adjustable anvil ring 22. The anvil ring 22 is contained within a drum 24 and has multiple lifts 26 mounted on hydraulic support members 32 which can be adjusted from a control panel 46 either manually 48 or automatically 50. The anvils 38 are spaced about the anvil zing 22 so that the faces 52 of the multiple anvils 38 are substantially perpendicular to the line of travel of the stones 12. The anvils 38 have anchors 64 for attachment to the anvil ring 22 whereby the worn anvils 38 can be easily inverted so as to prolong anvil life.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to stonecrushers and, more specifically, to stonecrushers with an externally adjustable anvil ring that can be raised or lowered incrementally during operation to provide even wear on the anvils.
2. Description of the Prior Art
There are numerous stonecrushers which provide for the fragmentation of rocks. While these stonecrushers may be suitable for the purposes for which they where designed, they would not be as suitable for the purposes of the present invention as heretofore described. It is thus desirable to provide a stonecrusher with an externally adjustable anvil ring that can be raised or lowered during operation to provide for even disintegration of the anvils caused by the impact of the stones being crushed. It is further desirable to provide a stonecrusher that utilizes the material being pulverized to protect components of the apparatus from the impact of the hurtling stones.
SUMMARY OF THE PRESENT INVENTION
The present invention discloses a device for crushing stone having an externally adjustable anvil ring. The anvil ring is contained within a drum and has multiple lifts mounted on hydraulic support members which can be adjusted from a control panel either manually or automatically. The anvils are spaced about the anvil ring so that the face of the multiple anvils are perpendicular to the line of travel of the stones. The anvils have anchors for attachment to the anvil ring whereby the worn anvils can be easily inverted so as to prolong anvil life.
The present invention relates generally to stonecrushers and, more specifically, to a stonecrusher with an adjustable anvil ring which allows an operator to adjust the height of the anvil ring without having to disassemble the unit. This will permit the operator to make adjustments without shutting down operation.
A primary object of the present invention is to provide a stonecrusher with an externally adjustable anvil ring which will overcome the shortcomings of prior art devices.
Another object of the present invention is to provide a stonecrusher with an adjustable anvil ring that has anvils that are angled to directly receive the impact of the stones and increase the efficiency of the apparatus.
Another object of the present invention is to provide a stonecrusher with an adjustable anvil ring whereby the anvils are arranged to form a stepped cylinder with comers to accumulate stone fragments that will receive the impact of the shattering projectiles thereby reducing the wear of the anvil heads.
A still further object of the present invention is to provide a stonecrusher with an adjustable anvil ring that will contain a 90-degree lip at the end of each propulsion wall in the centrifugating head. Material will be forced against the lip and accumulate along the propulsion wall as the centrifugating head spins. The stone introduced into the head will then strike the accumulated material rather than wearing down the propulsion wall.
Another object of the present invention is to provide a stonecrusher with an adjustable anvil ring that can move the anvil ring at a pre-determined rate according to the amount of stone that has passed through or could be set by timer.
Additional objects of the present invention will appear as the description proceeds.
To the accomplishment of the above and related objects, this invention may be embodied in the form illustrated in the accompanying drawings, attention being called to the fact, however, that the drawings are illustrative only, and that changes may be made in the specific construction illustrated and described within the scope of the appended claims.
BRIEF DESCRIPTION OF THE DRAWINGS
Various other objects, features and attendant advantages of the present invention will become more fully appreciated as the same becomes better understood when considered in conjunction with the accompanying drawings, in which like reference characters designate the same or similar parts throughout the several views.
FIG. 1
is a perspective view of the present invention in use. Stone is being dropped through the feeder tube into the rotating centrifugating head. The centrifugating head then propels the stone against the anvils in the anvil ring where fragmentation occurs resulting in smaller stone which drops through the bottom egress. The anvil ring is shown in hidden line inside the drum. The operator can raise the ring via the hydraulic lifts on the base. This can be done during operation instead of shutting down and disassembling the unit as in the prior art.
FIG. 2
is an illustrated view of the present invention in use, taken from
FIG. 1
as indicated, showing the path of the stone passing through the feeder tube and getting propelled from the centrifugating head into the anvils and shattering into smaller pieces.
FIG. 3
is a detailed sectional view, taken from
FIG. 2
as indicated, showing a stone being expelled from the centrifugating head and fragmenting upon impacting the anvil.
FIG. 4
is a detailed view, taken from
FIG. 2
as indicated, showing the anvil ring control panel consisting of a manual control and an automatic control that can be preset to raise and/or lower the anvil at variable rates depending on a timer or the volume of stone processed.
FIG. 5
is a sectional view of the present invention, taken from
FIG. 2
as indicated, showing the anvil ring without the anvils installed, set into the interior of the drum with four lifter arms extending to an exterior portion of the drum and affixed to hydraulic jacks.
FIG. 6
is a cross sectional view of the present invention, taken from
FIG. 2
as indicated, with all
20
anvils installed in the anvil ring. The anvil faces are situated at an angle that provides for the direct impact of the stone projectiles rather than the deflection characteristic of the centrally faced anvils found in the prior art.
FIG. 7
is a cross sectional view of the present invention, taken from
FIG. 2
as indicated, during the commencement of operation. The stone is dropped into the spinning centrifugating head where it is makes contact with one of the three propulsion walls. Centrifugal force then propels the stone along the propulsion wall until it is caught by a retainer lip at the end of the wall resulting in a build-up of material. The following stones will then roll over the accumulated material and be expelled toward the anvils with a force great enough to shatter the stones. For greater fragmentation of the stone being processed the operator would increase the rpm's of the centrifugating head. Some fragments will get jammed in the corners where the anvils meet resulting in an accumulation of material.
FIG. 8
is a cross sectional view of the present invention while fully operational. Material has accumulated on the propulsion wall in sufficient quantity to receive the impact of stones introduced into the centrifugal head before expelling them. Stone fragments have collected in the corners where the anvils meet partially covering the anvil heads to provide a surface for the stone projectiles to strike and thus reduce the wear on the anvils. Once the exposed anvil surface is thoroughly worm, the anvils can be removed and reinstalled in an inverted position thereby placing the worn section of the anvil face into a protected position.
FIG. 9
is a perspective view of an anvil removed from the anvil ring. The anchor portion is protruding from the anvil head and slides into the receiving groove of the anvil ring to lock into place prior to operation. The anvil is asymmetrical to allow a worn anvil to be inverted thus reversing the wear pattern on the anvil face and prolong longevity of the anvil.
LIST OF REFERENCE NUMERALS
With regard to reference numerals used, the following numbering is used throughout the drawings.
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10 present invention
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12 stone
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14 conveyor belt
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16 feeder tube
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18 crushed stone
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20 bottom egress
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22 anvil ring
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24 drum
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26 lifts
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28 base
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30 means for attaching lifts
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32 support members
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34 support member base
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36 means for connection
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37 centrifugal head
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38 anvil
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40 drive shaft
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42 smaller gear
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44 larger gear
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46 control panel
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48 manual control
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50 automatic control
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52 anvil face
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54 propulsion wall
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56 direction arrow
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58 retainer lip
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60 material build up
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61 following stone
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62 corners of anvil
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64 anvil anchor
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66 anvil head
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68 groove
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70 power unit
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72 cover for gear drive
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74 apertures
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DESCRIPTION OF THE PREFERRED EMBODIMENT(S)
In order that the invention may be more fully understood, it will now be described, by way of example, with reference to the accompanying drawings in which
FIGS. 1 through 9
illustrate the present invention being a stone crusher with an externally adjustable anvil ring.
Turning to
FIG. 1
, shown therein
1
is a perspective view of the present invention
10
in use. Stone
12
is being dropped off conveyor belt
14
through the inlet feeder tube
16
into the rotating centrifugating head (not shown). The centrifugating head then propels the stone
12
against the anvils (not shown) in the anvil ring
22
where fragmentation occurs resulting in smaller crushed stone
18
which drops through the bottom outlet egress
20
. The anvil ring
22
is shown in hidden line inside the drum
24
. The operator can raise the ring
22
via the attached hydraulic lifts
26
attached to the base
28
, which pass through apertures
74
in the wall of drum
24
. This can be done during operation instead of shutting down and disassembling the unit as in the prior art. Rod-like lifts
26
have means
30
for connecting to vertically standing support members
32
which have a flanged base
34
having means
36
for connection to base
28
. A second conveyor belt
14
carries the crushed stone
18
away.
Turning to
FIG. 2
, shown therein is an illustrated view of the present invention
10
in use, taken from
FIG. 1
as indicated, showing the path of the stone
12
passing through the feeder tube
16
and getting propelled from the below situated generally horizontal centrifugating head
37
into the anvils
38
and shattering upon impact into smaller pieces
18
which fall by gravity onto a lower conveyor belt. Also shown is a rotatable drive shaft
40
connected to a power unit
70
, e.g., an internal combustion engine or diesel engine, having a smaller gear
42
connected to a larger gear
44
having a right angle orientation being a pair of bevel gears, said larger gear
44
driving a shaft
46
coupled to the head
37
. Other features previously disclosed are also shown. Gear drives
42
,
44
are protected by a cover
72
.
Turning to
FIG. 3
, shown therein is a detailed sectional view, taken from
FIG. 2
as indicated, showing a stone
18
being expelled from the centifugating head
37
and fragmenting upon impacting the anvil
38
. Other features previously disclosed are also shown.
Turning to
FIG. 4
, shown therein is a detailed view, taken from
FIG. 2
as indicated, showing the anvil ring control panel
46
consisting of a manual control
48
and an automatic control
50
that can be preset to adjust the height or raise and/or lower the anvil
22
at variable rates depending on a timer
52
or the volume of stone processed.
Turning to
FIG. 5
, shown therein is a sectional view of the present invention
10
, taken from
FIG. 2
as indicated, showing the anvil ring
22
with spaced apart receiving grooves
68
without the anvils installed, set into the interior of the drum
24
with four lifter arms
26
extending to an exterior periphery of the anvil ring
22
and affixed to hydraulic jacks or support members
32
. Other features previously disclosed are also shown. Multiple fasteners
76
attach arm
26
to supports
32
. Centifigal head
37
is also shown.
Turning to
FIG. 6
, shown therein is a cross sectional view of the present invention
10
, taken from
FIG. 2
as indicated, with all approximately
20
anvils
38
installed in the anvil ring
22
. The anvil faces
52
are situated at an angle that places the anvil face
52
substantially perpendicular to the line of travel of the stone projectiles rather than the deflection characteristic of the centrally faced anvils found in the prior art. Other features previously disclosed are also shown.
Turning to
FIG. 7
, shown therein is a cross sectional view of the present invention
10
, taken from
FIG. 2
as indicated, during the commencement of operation. The stone
12
is dropped into the spinning receiving means of the (see direction arrow
56
) centrifugating head
37
where it makes contact with one of the specially configured three propulsion walls
54
. Centrifugal force then propels the stone
12
along the propulsion wall
54
until it is caught by a retainer lip
58
at the end of the wall
54
resulting in a build-up of material
60
. The following stones
61
will then roll over the accumulated material
60
and be expelled toward the anvils
38
with a force great enough to shatter the stone
61
. For greater fragmentation of the stone being processed the operator would increase the rpm's of the centrifugating head
37
. Some fragments will get jammed in the corners
62
where the anvils
38
meet resulting in an accumulation of material. Other features previously disclosed are also shown.
Turning to
FIG. 8
, shown therein is a cross sectional view of the present invention
10
while fully operational. Material has accumulated on the propulsion wall
54
in sufficient quantity to receive the impact of stones
12
introduced into the centrifugal head
37
before expelling them. Stone fragments have collected in the corners
62
where the anvils
38
meet partially covering the anvil heads or faces
52
to provide a surface for the stone projectiles to strike and thus reduce the wear on the anvils
38
. Once the exposed anvil surface
52
is thoroughly worn, the anvils
38
can be removed and reinstalled in an inverted position thereby placing the worn section of the anvil face
52
into a protected position. The present invention
10
is designed so that about one-half of the anvil face
52
is covered by stone in the corners
62
so as to reduce wear on the anvil face
52
.
Turning to
FIG. 9
, shown therein is a perspective view of an anvil
38
removed from the anvil ring. The anchor portion
64
is protruding from the anvil head
66
and slides into the receiving groove
68
(not shown) of the anvil ring
22
(not shown) to lock into place prior to operation. The anvil
38
is symmetrical to allow a worn anvil to be inverted thus reversing the wear pattern on the anvil face
52
and prolong longevity of the anvil
38
. Anvil
38
has a front surface
52
, a rear surface opposite thereto, a top surface, a bottom surface, and a pair of side surfaces, with front surface and rear surface being wider than the side surfaces being rectangular shaped. The means for anchoring
64
is a male-like protruding attachment member located on the back surface of the anvil
38
, the male-like members
64
having mating female members
68
on the anvil ring
22
.
Claims
- 1. An apparatus for crushing stone, comprising:a) an inlet for the uncrushed stone through which said inlet the uncrushed stone falls by gravity; b) an outlet for the crushed stone through which said outlet the crushed stone falls by gravity; c) a centrifugating head, said head centrifugating in a generally horizontal plane, said head disposed beneath said inlet, said head having means for receiving stone therein, said head disposed above said outlet, said head having means for expelling stone therefrom; d) a plurality of anvils encircling said centrifugating head; e) an anvil ring for receiving said plurality of anvils in a spaced apart relationship, said anvil ring disposed so as to place said plurality of anvils in position to receive stone expelled from said centrifugating head; f) means for rotating said centrifugating head in generally horizontal plane; g) an outer drum for partially enclosing said anvil ring and said centrifugating head; h) a generally upstanding base upon which the apparatus is mounted; i) a first means for mounting said anvil ring onto said base and including means for adjusting height of said anvil ring whereby said height adjustment occurs while the apparatus is operating; and, j) a second means for mounting said drum onto said base.
- 2. The apparatus of claim 1, said plurality of anvils being substantially rectangular in shape having a means for anchoring to said anvil ring.
- 3. The apparatus of claim 2, each said anvil defined by a front surface, a rear surface, a top surface, a bottom surface, and a pair of side surfaces, said front surface and said rear surface being wider than said side surfaces, said means for anchoring further comprising a male-like protruding attachment member on said rear surface of said anvil, said male-like members having mating female members on said anvil ring.
- 4. The apparatus of claim 3, wherein said anvils can be inverted whereby anvil life is extended.
- 5. The apparatus of claim 3, said anvil ring having a plurality of female-like members for receiving said mating male-like members of said anvils.
- 6. The apparatus of claim 5, wherein said anvils are positioned on said anvil ring so that said front surface of said anvils are substantially perpendicular to the line of travel of the stone expelled from said centrifugating head.
- 7. The apparatus of claim 5, said anvils being about 20 in number.
- 8. The apparatus of claim 1, said means for adjusting height of said anvil ring further comprising a plurality of rod-like lifts attached to the external peripheral surface of said anvil ring.
- 9. The apparatus of claim 8, further comprising said drum having a plurality of apertures therein, said apertures for receiving said rod-like lifts, said lifts thereby passing through said apertures of said drum.
- 10. The apparatus of claim 9, said first means for mounting said anvil ring onto said base further comprising said rod-like lifts.
- 11. The apparatus of claim 10, said first means for connecting said anvil ring onto said base further comprises multiple hydraulic support members communicating between said rod-like lifts and said base.
- 12. The apparatus of claim 1, said means for rotating said centrifugating head further comprising a pair of bevel gears, said bevel gears having a first shaft and a second shaft, said first and second shafts being generally perpendicular to each other, said first shaft connected to said centrifugating head, and said second shaft connected to a source of rotatable power.
- 13. The apparatus of claim 12, wherein said source of rotatable power is an internal combustion engine.
- 14. The apparatus of claim 1, said centrifugating head having means for receiving stone therein, said means for receiving stone further comprising a plurality of vertical wall means disposed on the upper surface of said centrifugating head, said walls collecting the stone from said inlet and being configured, whereby said walls expel the stone from said centrifugating head toward said anvils.
- 15. The apparatus of claim 1, wherein said means for adjusting height is done manually.
- 16. The apparatus of claim 1, wherein said means for adjusting height is done automatically.
US Referenced Citations (3)