USRE32355E - Impeller shoe assembly - Google Patents
Impeller shoe assembly Download PDFInfo
- Publication number
- USRE32355E USRE32355E US06/648,812 US64881284A USRE32355E US RE32355 E USRE32355 E US RE32355E US 64881284 A US64881284 A US 64881284A US RE32355 E USRE32355 E US RE32355E
- Authority
- US
- United States
- Prior art keywords
- base member
- wear resistant
- face
- inner end
- resistant member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
- B02C13/18—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor
- B02C13/1807—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor the material to be crushed being thrown against an anvil or impact plate
- B02C13/1814—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor the material to be crushed being thrown against an anvil or impact plate by means of beater or impeller elements fixed on top of a disc type rotor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/28—Shape or construction of beater elements
- B02C13/2804—Shape or construction of beater elements the beater elements being rigidly connected to the rotor
Definitions
- This invention relates to a vertical shaft centrifugal impact crushing machine and more particularly to impeller shoe assemblies for such machines.
- particulate material is fed centrally onto a horizontal turntable that is rotating about a vertical axis at a high speed.
- Impeller shoe assemblies are mounted on the turntable causing the particulate material to accelerate radially outward from the central portion of the turntable to a very high velocity to impact against stationary wear resistant anvil members positioned about the periphery of the turntable.
- stationary wear resistant anvil members positioned about the periphery of the turntable.
- One of the principal purposes of this invention is to provide an impeller shoe assembly that greatly increases the efficiency of the impeller shoe with respect to weight and cost.
- a further object is to provide an impeller shoe assembly in which the amount of unusable wear resistant material is greatly reduced, thereby providing an extended life to cost ratio.
- FIG. 1 is an isometric view of an impeller shoe assembly which is the subject of this invention
- FIG. 2 is an isometric view of members of the assembly being separated to illustrate the mounting technique
- FIG. 3 is a plan view of an impeller shoe assembly mounted to a turntable shoe bracket
- FIG. 4 is a vertical longitudinal cross-sectional view taken along line 4--4 in FIG. .[.3.]. .Iadd.5.Iaddend.;
- FIG. 5 is a vertical transverse cross-sectional view taken along line 5--5 in FIG. 3;
- FIG. 6 is a fragmentary plan view of a crushing chamber of a centrifugal impact crushing machine showing the mounting of the impeller shoe on a turntable in the crushing chamber.
- FIG. 1 an impeller shoe assembly 10 for use in vertical shaft centrifugal impact crushing machine designated with the numeral 11 in FIG. 6.
- An example of such a machine is illustrated in the D. R. Warren U.S. Pat. No. 3,606,182 granted Sept. 20, 1971.
- the turntable 12 is designed to rotate about a vertical axis 13.
- the turntable assembly 12 includes a central distribution disc 15 that is adapted to receive the material from an overhead feed and to distribute the material radially outward to the impeller shoe assemblies 10.
- each bracket 20 includes a bracket mounting plate 22 having an aperture 24 formed therein as illustrated in FIG. 5.
- Each of the impeller shoe assemblies 10 includes an elongated supporting base member 28 (FIGS. 1 and 2) for affixing to the bracket plate 22 and an elongated wear resistant member 30 replaceably secured to the base member 28 for receiving and directing the material radially outward to the anvils 17.
- Base member 28 extends from an inclined inner end 32 to an outer end 34 .Iadd.and .Iaddend.having a backface 36, a front face 38, a bottom face 40 and a top face 42.
- the bottom face 40 is supported on the turntable assembly 12.
- the back face 36 has a .Iadd.securing means such as .Iaddend.stob 44 that extends outwardly therefrom for extending through the aperture 24.
- the stob 44 includes a diagonal aperture 45 (FIGS. 3 and 5) to receive a removable pin (not shown) to enable the impeller shoe assembly 10 to be removed from the crushing machine.
- the inner end 32 includes a shoulder surface 48 and an inclined end surface 50.
- the front face 38 includes a wide longitudinal female dovetail groove 54 (FIG. 2) formed therein extending between the inner end 32 and the outer end 34 intermediate the top and bottom faces 40 and 42.
- the wide female dovetail groove 54 has an opening 56 formed in the inner end 32 and an opening 58 formed in the outer end 34.
- the dovetail groove 54 is defined by a groove wall 60 and by longitudinal groove recesses 62 and 63 that extend between the inner and outer ends 32 and 34.
- the recesses 62 and 63 are defined by longitudinal shoulders 65 and 66.
- the front face 38 includes face bearing surfaces 68 and 70 that provide bearing support for the wear resistant member 30.
- the longitudinal female dovetail groove 54 is slightly tapered downward from the inner end 32 to the outer end 34.
- the minimum width of the groove 54 is identified with the numeral 72 and extends transverse between the longitudinal shoulders 65 and 66.
- the width of the groove 72 decreases slightly from the inner end 32 to the outer end 34 to provide the slight taper. It is desirable that the taper not be more than 15° and preferably less than 5°.
- the elongated wear resistant member 30 extends from an inner end 76 to an outer end 78 and having a back surface 80, a front surface 82, a bottom surface 84 and a top surface 86.
- the bottom surface 84 is adapted to rest on the turntable assembly 12.
- the top face 86 extends elevationally above the top face 42 to further protect the base member 28 from the abrasive action of the material.
- the inner end 76 includes an extension or projection 88 (FIGS. 1-3) that extends beyond the back surface 80 for protecting the inner end 32 of the base member and the bracket plate 22.
- the projection 88 includes an inner face 90 that extends at an inclined angle with respect to the bracket plate 22. Preferably the inclined angle is approximately 9°-11° to cause the material to flow along the .[.innerface.]. .Iadd.inner face .Iaddend.90 and the front face 82 as it moves radially outward from the distribution disc 15.
- a disc notch 92 (FIG. 1) is formed at the base of the inner end 76 to accommodate and overlap the central distribution disc 15.
- the projection 88 includes a side surface 94 for protecting the bracket plate 22 and the inclined surface 98 that is complementary to the inclined end surface 50 of the base member 28.
- the back face 80 includes a wide longitudinal male dovetail projection 100 (FIG. 2) that is complementary to the longitudinal female dovetail groove 54.
- the longitudinal male dovetail projection 100 includes a back surface 101 that is complementary to the groove wall 60. Additionally the projection includes longitudinal recesses 102 and 103 for accommodating the longitudinal shoulders 65 and 66 of the base member 22.
- the projection 100 includes shoulders 104 and 105 that are accommodated in respective longitudinal groove recesses 62 and 63 of the base member 22.
- the male dovetail projection 100 terminates at an abutment surface 108 at the inner end 76 with the abutment surface 108 adapted to engage the shoulder surface 48 to limit the position of the wear resistant member 30 with respect to the base member 28 (FIG. 4).
- Backface 80 includes face bearing surfaces 106 and 107 that engage and bear against the respective bearing .[.surface.]. .Iadd.surfaces .Iaddend.68 and 70 of the base member to provide the supporting bearing surfaces between the base member 28 and the wear resistant member 30 when the impeller shoe assembly is in operation with the turntable assembly 12 rotating at a high angular speed.
- the longitudinal male dovetail projection 100 is tapered at a complementary shallow angle to the dovetail groove 54 in which the dovetail projection tapers downwardly from the inner end 76 to the outer end 78.
- the abutment surface 108 is located with respect to the shoulder surface 48 to longitudinally center the wear resistant member 30 with respect to the base member 28.
- the abutment surface 108 limits the longitudinal movement of the dovetail projection 100 in the dovetail groove 54 to provide a very loose fit so that the resistant member 30 may be easily removed from the base member 28.
- dust and small particles migrate in between the shoulders 65, 66, 104, 105 and the corresponding recesses 62, 63, 102 and 103.
- the tapered recess permits the operator to easily replace the wear resistant member 30 by merely tapping the outer end 78. Because of the slight taper, the wear resistant member easily moves radially inward to enable the wear resistant member 30 to be replaced after its useful life.
- the front face 82 of the wear resistant member 30 includes a longitudinal channel 110 that is defined by longitudinal flanges 113 and 112 adjacent the bottom face 84 and the top face 86 respectively.
- the thickness of the wear resistant member 30 progressively increases from the inner end 76 to the outer end 78 between the back face 80 and the front face 82 to provide a somewhat wedged-shaped wear resistant element.
- the base member 28 has a substantially uniform thickness from the inner end 32 to the outer end 34 between the back face 34 and the front face 38.
- An additional feature includes the provision that the minimum width of the groove designated by the numeral 72 (FIG. 2) is greater than 50% of the distance between the top face 42 and the bottom face 40 and preferably the width 72 is greater than 60% of the distance between the top face 42 and the bottom face 40.
- the wide dovetail elements increase the depth and width of the wear resistant element to increase the life of the member 30.
- the two-piece impeller shoe assembly enables the supporting base member 28 to be constructed of a high-strength high-impact material that minimizes breakage such as 8630 alloy steel, whereas the wear resistant member 30 is constructed of a lower strength but higher wear resistant material such as high chrome iron.
- the combination of the two provides a superior impeller shoe that is considerably less costly to the customer and provides a much more cost efficient operation with less waste material which substantially reduces the cost of operation.
- the high strength base member 28 enables the table assembly to be rotated at a higher angular speed to increase the performance of the machine and produce smaller particles.
Abstract
Description
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/648,812 USRE32355E (en) | 1980-06-16 | 1984-09-07 | Impeller shoe assembly |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/160,068 US4355769A (en) | 1980-06-16 | 1980-06-16 | Impeller shoe assembly |
US06/648,812 USRE32355E (en) | 1980-06-16 | 1984-09-07 | Impeller shoe assembly |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/160,068 Reissue US4355769A (en) | 1980-06-16 | 1980-06-16 | Impeller shoe assembly |
Publications (1)
Publication Number | Publication Date |
---|---|
USRE32355E true USRE32355E (en) | 1987-02-17 |
Family
ID=26856571
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/648,812 Expired - Lifetime USRE32355E (en) | 1980-06-16 | 1984-09-07 | Impeller shoe assembly |
Country Status (1)
Country | Link |
---|---|
US (1) | USRE32355E (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5143311A (en) * | 1990-05-17 | 1992-09-01 | Newman Machine Company, Inc. | Wood shavings forming apparatus and cutting roll adapted for use therewith |
US5921484A (en) * | 1997-06-04 | 1999-07-13 | Smith And Stout Research And Development, Inc. | Wear resistant rock crusher impeller and method |
USD429741S (en) * | 1999-07-30 | 2000-08-22 | Impact Service Corporation | Pocketed impeller shoe |
EP1382396A1 (en) * | 2000-08-11 | 2004-01-21 | Metso Minerals (Matamata) Limited | Crusher rotor |
US20070227406A1 (en) * | 2006-02-24 | 2007-10-04 | Jon Korbonski | Pallet table |
USD742442S1 (en) * | 2013-10-31 | 2015-11-03 | Sintokogio, Ltd. | Impeller blade for shotblast machine |
USD743460S1 (en) * | 2013-10-31 | 2015-11-17 | Sintokogio Ltd. | Impeller blade for shotblast machine |
USD744017S1 (en) * | 2013-10-31 | 2015-11-24 | Sintokogio, Ltd. | Impeller blade for shotblast machine |
US20160096181A1 (en) * | 2013-06-20 | 2016-04-07 | Nara Machinery Co., Ltd. | Powder processing apparatus |
US20160367995A1 (en) * | 2014-02-19 | 2016-12-22 | Cast Steel Products Lp, By Its General Partner Cast Steel Products Gp Ltd. | Roller with Replaceable Edge Reinforcements |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3074657A (en) * | 1959-12-04 | 1963-01-22 | Adams Engineering Company | Impact crushing apparatus |
US3110449A (en) * | 1962-07-30 | 1963-11-12 | Thomas E Bridgewater | Breaker plate structure |
US3474974A (en) * | 1967-02-27 | 1969-10-28 | Bruce V Wood | Impact type crusher |
US3829032A (en) * | 1972-10-02 | 1974-08-13 | Iowa Mfg Co | Hammer assemblies with reversible tips for hammermills |
US4090673A (en) * | 1977-02-18 | 1978-05-23 | Canica Crushers Ltd. | Centrifugal impact rock crushers |
-
1984
- 1984-09-07 US US06/648,812 patent/USRE32355E/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3074657A (en) * | 1959-12-04 | 1963-01-22 | Adams Engineering Company | Impact crushing apparatus |
US3110449A (en) * | 1962-07-30 | 1963-11-12 | Thomas E Bridgewater | Breaker plate structure |
US3474974A (en) * | 1967-02-27 | 1969-10-28 | Bruce V Wood | Impact type crusher |
US3829032A (en) * | 1972-10-02 | 1974-08-13 | Iowa Mfg Co | Hammer assemblies with reversible tips for hammermills |
US4090673A (en) * | 1977-02-18 | 1978-05-23 | Canica Crushers Ltd. | Centrifugal impact rock crushers |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5143311A (en) * | 1990-05-17 | 1992-09-01 | Newman Machine Company, Inc. | Wood shavings forming apparatus and cutting roll adapted for use therewith |
US5921484A (en) * | 1997-06-04 | 1999-07-13 | Smith And Stout Research And Development, Inc. | Wear resistant rock crusher impeller and method |
USD429741S (en) * | 1999-07-30 | 2000-08-22 | Impact Service Corporation | Pocketed impeller shoe |
EP1382396A1 (en) * | 2000-08-11 | 2004-01-21 | Metso Minerals (Matamata) Limited | Crusher rotor |
EP1382396A4 (en) * | 2000-08-11 | 2006-12-27 | Metso Minerals Matamata Ltd | Crusher rotor |
US20070227406A1 (en) * | 2006-02-24 | 2007-10-04 | Jon Korbonski | Pallet table |
US20160096181A1 (en) * | 2013-06-20 | 2016-04-07 | Nara Machinery Co., Ltd. | Powder processing apparatus |
USD742442S1 (en) * | 2013-10-31 | 2015-11-03 | Sintokogio, Ltd. | Impeller blade for shotblast machine |
USD743460S1 (en) * | 2013-10-31 | 2015-11-17 | Sintokogio Ltd. | Impeller blade for shotblast machine |
USD744017S1 (en) * | 2013-10-31 | 2015-11-24 | Sintokogio, Ltd. | Impeller blade for shotblast machine |
US20160367995A1 (en) * | 2014-02-19 | 2016-12-22 | Cast Steel Products Lp, By Its General Partner Cast Steel Products Gp Ltd. | Roller with Replaceable Edge Reinforcements |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4355769A (en) | Impeller shoe assembly | |
USRE32355E (en) | Impeller shoe assembly | |
US4090673A (en) | Centrifugal impact rock crushers | |
EP0026996B1 (en) | Bladed centrifugal blasting wheel | |
US4298044A (en) | Wood chipper | |
US3606182A (en) | Crushing chamber for a centrifugal impact rock crushing machine | |
US4896838A (en) | Rotor for vertical shaft impact crushers | |
US4573643A (en) | Impact crushers | |
US4347988A (en) | Anvil assembly for vertical shaft centrifugal impact crushing machine | |
CA1046771A (en) | Blast impellor wheels | |
US4796822A (en) | Impeller for an impact crusher | |
US3936979A (en) | Particle-releasing mounting system for the blades of blasting machines | |
US4174814A (en) | Impeller shoe for centrifugal impact rock crushing machine | |
US4480413A (en) | Bladed centrifugal blasting wheel | |
GB2198060A (en) | An impact mill for crushing hard material | |
US4397426A (en) | Shoe bracket assembly for vertical shaft impact crushing machines | |
US3540667A (en) | Impact type rock crusher | |
JPS6410635B2 (en) | ||
US11122723B2 (en) | Tool on a tool carrier for tilling and comminuting | |
US6293481B1 (en) | Attachment arrangement facilitating rapid replacement of strikers of a wood comminuting rotor | |
US4683790A (en) | Disc cutter machine, in particular for cutting sugar beet | |
US3150838A (en) | Impact crusher | |
USRE32363E (en) | Anvil assembly for vertical shaft centrifugal impact crushing machine | |
US4513919A (en) | Feed arrangement for a centrifugal rock crusher | |
US2204635A (en) | Centrifugal abrading machine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CONTINENTAL ILLINOIS NATIONAL BANK AND TRUST COMPA Free format text: SECURITY INTEREST;ASSIGNOR:PORTEC, INC.;REEL/FRAME:004952/0073 Effective date: 19880802 |
|
AS | Assignment |
Owner name: PORTEC, INC. Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:CONTINENTAL BANK NA;REEL/FRAME:005249/0189 Effective date: 19900215 Owner name: FIRST NATIONAL BANK OF CHICAGO, THE Free format text: SECURITY INTEREST;ASSIGNOR:PORTEC, INC.;REEL/FRAME:005249/0176 Effective date: 19900215 |
|
AS | Assignment |
Owner name: AMERICAN NATIONAL BANK AND TRUST COMPANY OF CHICAG Free format text: SECURITY INTEREST;ASSIGNOR:FIRST NATIONAL BANK OF CHICAGO, THE;REEL/FRAME:006208/0595 Effective date: 19920305 |
|
AS | Assignment |
Owner name: PORTEC, INC., ILLINOIS Free format text: RELEASE;ASSIGNOR:AMERICAN NATIONAL BANK AND TRUST COMPANY OF CHICAGO;REEL/FRAME:006478/0114 Effective date: 19930212 |
|
AS | Assignment |
Owner name: ASTEC INDUSTRIES, INC., TENNESSEE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PORTEC, INC.;REEL/FRAME:009267/0961 Effective date: 19971202 |