US2588900A - Crusher-roll covering element - Google Patents
Crusher-roll covering element Download PDFInfo
- Publication number
- US2588900A US2588900A US124879A US12487949A US2588900A US 2588900 A US2588900 A US 2588900A US 124879 A US124879 A US 124879A US 12487949 A US12487949 A US 12487949A US 2588900 A US2588900 A US 2588900A
- Authority
- US
- United States
- Prior art keywords
- teeth
- crusher
- rotor
- covering element
- roll covering
- 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
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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
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/30—Shape or construction of rollers
- B02C4/305—Wear resistant rollers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49544—Roller making
- Y10T29/4956—Fabricating and shaping roller work contacting surface element
- Y10T29/49563—Fabricating and shaping roller work contacting surface element with coating or casting about a core
Definitions
- This invention relates to machinery elements or members, such as crusher rotors or crusher rotor segments, in which working elements, such as the teeth, are made of vary hard castiron, which are attached or held to the body or machinewithout being formed integral therewith.
- An object of the invention therefore is to provide a machinery element or member, such as a crusher rotor or crusher rotor segment, or the like, having the construction above mentioned, whereby the life of the working elements of the machinery member, and thus the life of the member itself, 'is greatly increased over that customarily realized.
- Fig. 1 is a sectional elevational view of a crusher rotor including rotor segments incorporating the invention
- Fig. 2 is a plan view of one of the segments of the rotor of Fig. 1;
- Fig. 3 is an enlarged sectional view taken on the line 33 of Fig. 2, looking in the direction of the arrows;
- Fig. 4 is an enlarged sectional view taken on the line 4-4 of Fig. 2, looking in the direction of the arrows.
- This invention relates to machine elements or members such as crusher rotors, gears, sprockets or wheels, or parts thereof of the type which includes teeth that have been formed by inserts.
- the teeth inserts are first cast and they are then rigidly attached to the body of the machine element by interlocking mortise and tennon joints, as clearly illustrated in Figs. 3 and 4 of the drawings. This is preferably elfectuated by positioning the teeth inserts in a casting mold and then filling the mold to form a body so as to make the rigid interconnection between the body and teeth inserts illustrated in the drawings.
- the teeth inserts are preferably made of a hard iron so as to increase appreciably the life of the teeth and thus of the complete machine element, as compared with that of a normal cast iron machine element.
- the said teeth inserts are preferably made of a hard cast iron including nickel and chromium providing an abrasing resistance material and one which has a hardness of from 50 to 62 R.ockwe1l.
- a hard iron is commercially available and, as manufactured by one leading producer, is known in the trade under the name Ni-hard.”
- FIG. 1 there is illustrated one form of machine element or member in which the teeth are made of hard iron, preferably of the material as above described.
- the drawings illustrate a crusher rotor l3 which is mounted on a shaft l4 and includes a drum l5 to which a plurality of removable cylindrical segments iii are attached which comprise the working segments of said rotor 13.
- the general construction of this type of rotor is disclosed in United States Patent No. 2,212,616, Ossing and Feight. dated August 27, 1940, entitled Crusher.
- each of the segments l6 includes a plurality of teeth of which there are two fundamentally difierent types, including pyramidal type teeth I! and box type teeth I8.
- Both types of teeth I1 and I B are made of hard iron similar to the teeth ll above described or, as above suggested, may be made of Ni-hard. They are permanently attached to the segment l6 by being embedded therein which is preferably formed by casting the segment I6 while the teeth l1 and [8 are held in position in the mold.
- the tapered bases of the teeth I1 and I8 cooperate with the body of the segment [6 to insure a tight and permanent attachment of said teeth I! and It to the segment.
- a crusher roll covering element formed entirely of cast metal components including a body member made of a cast metal including iron.
- cast metal teeth being made of a hard iron alloy including nickel and chromium and having a hardness of between 50 and 62 Rockwell, said body and cast teeth being permanently united into a unit by casting the metal of the body about the base portions of said cast teeth whereby said body teeth.
Description
March 11, 1952 H. R. WARSMITH 2,588,900
CRUSHER-ROLL COVERING ELEMENT Filed Nov. 1, 1949 1 M? U U %E E @D El;7.4 BEARRY E. WARSMITH,
Patented Mar. 11,1952
Harry-R. War-smith, Columbus, Ohio, assignor a The Jeffrey Manufacturing Company, acorpo ration of Ohio Application November 1, 1949, Serial N 0. 124,879
1 Claim.
This invention relates to machinery elements or members, such as crusher rotors or crusher rotor segments, in which working elements, such as the teeth, are made of vary hard castiron, which are attached or held to the body or machinewithout being formed integral therewith.
An object of the invention therefore is to provide a machinery element or member, such as a crusher rotor or crusher rotor segment, or the like, having the construction above mentioned, whereby the life of the working elements of the machinery member, and thus the life of the member itself, 'is greatly increased over that customarily realized.
Other objects of the invention will appear hereinafter, the novel features and combinations being set forth in the appended claim.
In the accompanying drawings:
Fig. 1 is a sectional elevational view of a crusher rotor including rotor segments incorporating the invention;
Fig. 2 is a plan view of one of the segments of the rotor of Fig. 1;
Fig. 3 is an enlarged sectional view taken on the line 33 of Fig. 2, looking in the direction of the arrows; and
Fig. 4 is an enlarged sectional view taken on the line 4-4 of Fig. 2, looking in the direction of the arrows.
This invention relates to machine elements or members such as crusher rotors, gears, sprockets or wheels, or parts thereof of the type which includes teeth that have been formed by inserts. According to this invention the teeth inserts are first cast and they are then rigidly attached to the body of the machine element by interlocking mortise and tennon joints, as clearly illustrated in Figs. 3 and 4 of the drawings. This is preferably elfectuated by positioning the teeth inserts in a casting mold and then filling the mold to form a body so as to make the rigid interconnection between the body and teeth inserts illustrated in the drawings.
The teeth inserts are preferably made of a hard iron so as to increase appreciably the life of the teeth and thus of the complete machine element, as compared with that of a normal cast iron machine element. For example, the said teeth inserts are preferably made of a hard cast iron including nickel and chromium providing an abrasing resistance material and one which has a hardness of from 50 to 62 R.ockwe1l. Such a hard iron is commercially available and, as manufactured by one leading producer, is known in the trade under the name Ni-hard."
2 The analysis of this type of iron is well understood in the metallurgical art.
In the drawings there is illustrated one form of machine element or member in which the teeth are made of hard iron, preferably of the material as above described. The drawings illustrate a crusher rotor l3 which is mounted on a shaft l4 and includes a drum l5 to which a plurality of removable cylindrical segments iii are attached which comprise the working segments of said rotor 13. The general construction of this type of rotor is disclosed in United States Patent No. 2,212,616, Ossing and Feight. dated August 27, 1940, entitled Crusher.
For the purposes of illustrating the present invention it is adequate to point out that each of the segments l6 includes a plurality of teeth of which there are two fundamentally difierent types, including pyramidal type teeth I! and box type teeth I8. Both types of teeth I1 and I B are made of hard iron similar to the teeth ll above described or, as above suggested, may be made of Ni-hard. They are permanently attached to the segment l6 by being embedded therein which is preferably formed by casting the segment I6 while the teeth l1 and [8 are held in position in the mold. The tapered bases of the teeth I1 and I8 cooperate with the body of the segment [6 to insure a tight and permanent attachment of said teeth I! and It to the segment. U
It is evident that the teeth I! and [8 are the significant and principal working elements of the rotor and consequently by greatly increasing their lives, the effective life of the rotor and each segment l6 thereof will be appreciably increased.
My companion application Serial No. 171,022, filed June 29, 1950, is a continuation-in-part of this application in which gear structures embodying the invention are described and claimed.
Obviously those skilled in the art may make various changes in the details and arrangement of parts without departing from the spirit and scope of the invention as defined by the claim hereto appended, and applicant therefore wishes not to be restricted to the precise construction herein disclosed.
Having thus described and shown :an embodiment of the invention, what it is desired to secure by Letters Patent of the United States is:
A crusher roll covering element formed entirely of cast metal components including a body member made of a cast metal including iron.
and material crushing and breaking teeth made of a different cast metal fixed permanently on said cast metal body and projecting radially outwardly therebeyond, said cast metal teeth being made of a hard iron alloy including nickel and chromium and having a hardness of between 50 and 62 Rockwell, said body and cast teeth being permanently united into a unit by casting the metal of the body about the base portions of said cast teeth whereby said body teeth.
HARRY R. WAR'SMITH.
REFERENCES CITED The following references are of record in the file of this patent:
Number upon cooling seizes said base portions of said UNITED STATES PATENTS Name Date Duryee Jan. 3, 1882 Clark June 10, 1884 Stephens Oct. 8, 1889 Clark Apr. 15, 1913 Beament Aug. 6, 1940 Fowler Oct. 14, 1947 FOREIGN PATENTS Country Date Number Great Britain Apr. 21, 1932
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US124879A US2588900A (en) | 1949-11-01 | 1949-11-01 | Crusher-roll covering element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US124879A US2588900A (en) | 1949-11-01 | 1949-11-01 | Crusher-roll covering element |
Publications (1)
Publication Number | Publication Date |
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US2588900A true US2588900A (en) | 1952-03-11 |
Family
ID=22417243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US124879A Expired - Lifetime US2588900A (en) | 1949-11-01 | 1949-11-01 | Crusher-roll covering element |
Country Status (1)
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US (1) | US2588900A (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2801838A (en) * | 1954-10-21 | 1957-08-06 | Joy Mfg Co | Rotary disintegrating drum for continuous miner |
US3682227A (en) * | 1970-07-24 | 1972-08-08 | Jerome C Motz | Method of making bi-metal crusher liner |
US4807820A (en) * | 1984-03-05 | 1989-02-28 | T.J. Gundlach Machine Company | Segmental shell for a coal crusher roll |
US4897897A (en) * | 1988-04-07 | 1990-02-06 | Rieter Machine Works, Ltd. | Clothing for a cleaning or opening roller |
EP0578239A2 (en) * | 1992-07-09 | 1994-01-12 | Klöckner-Humboldt-Deutz Aktiengesellschaft | Wear-resistant roller to be used in double roll crushers, in particular high-pressure roller crushers |
US6540218B2 (en) * | 1996-09-30 | 2003-04-01 | Kabushiki Kaisha Tsukada Nezi Seisakusho | Sheet feed shaft, apparatus for manufacturing same and method for manufacturing same |
US20030146318A1 (en) * | 2002-02-04 | 2003-08-07 | Condon Gary J. | Roll crusher teeth having hard compact material inserts |
US20050225098A1 (en) * | 2004-04-12 | 2005-10-13 | Christopher Kliefoth | Magnetic latch system |
WO2012092427A1 (en) * | 2010-12-29 | 2012-07-05 | Flsmidth A/S | Crushing body and method of making the same |
CN102794212A (en) * | 2012-08-15 | 2012-11-28 | 成都市新力设备制造有限责任公司 | Combined roller |
US20130023393A1 (en) * | 2010-04-16 | 2013-01-24 | Flsmidth A/S | Wear-resistant roller |
US20130248630A1 (en) * | 2010-12-17 | 2013-09-26 | Thyssenkrupp Polysius Ag | Grinding roller of a roller mill |
CN103480453A (en) * | 2013-08-30 | 2014-01-01 | 绵阳金鼎机电技术有限公司 | High-precision wear-resistant tooth roller easy to integrally disassemble and install and manufacturing method thereof |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US251848A (en) * | 1882-01-03 | Geoege dueyee | ||
US300048A (en) * | 1884-06-10 | Grinding-wheel for bark-mills | ||
US412558A (en) * | 1889-10-08 | Surface for grinding and crushing | ||
US1058948A (en) * | 1912-08-05 | 1913-04-15 | Edward L Clark | Crusher-roller for coal-breakers, &c. |
GB371262A (en) * | 1931-08-24 | 1932-04-21 | Sim Frey | Improved manufacture of toothed wheels |
US2210357A (en) * | 1936-02-27 | 1940-08-06 | Beament Thomas Geoffrey | Composite wear-resisting body |
US2429157A (en) * | 1943-08-07 | 1947-10-14 | Jeffrey Mfg Co | Crusher roll including removable wear segments and interlocked teeth |
-
1949
- 1949-11-01 US US124879A patent/US2588900A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US251848A (en) * | 1882-01-03 | Geoege dueyee | ||
US300048A (en) * | 1884-06-10 | Grinding-wheel for bark-mills | ||
US412558A (en) * | 1889-10-08 | Surface for grinding and crushing | ||
US1058948A (en) * | 1912-08-05 | 1913-04-15 | Edward L Clark | Crusher-roller for coal-breakers, &c. |
GB371262A (en) * | 1931-08-24 | 1932-04-21 | Sim Frey | Improved manufacture of toothed wheels |
US2210357A (en) * | 1936-02-27 | 1940-08-06 | Beament Thomas Geoffrey | Composite wear-resisting body |
US2429157A (en) * | 1943-08-07 | 1947-10-14 | Jeffrey Mfg Co | Crusher roll including removable wear segments and interlocked teeth |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2801838A (en) * | 1954-10-21 | 1957-08-06 | Joy Mfg Co | Rotary disintegrating drum for continuous miner |
US3682227A (en) * | 1970-07-24 | 1972-08-08 | Jerome C Motz | Method of making bi-metal crusher liner |
US4807820A (en) * | 1984-03-05 | 1989-02-28 | T.J. Gundlach Machine Company | Segmental shell for a coal crusher roll |
US4897897A (en) * | 1988-04-07 | 1990-02-06 | Rieter Machine Works, Ltd. | Clothing for a cleaning or opening roller |
EP0578239A2 (en) * | 1992-07-09 | 1994-01-12 | Klöckner-Humboldt-Deutz Aktiengesellschaft | Wear-resistant roller to be used in double roll crushers, in particular high-pressure roller crushers |
EP0578239A3 (en) * | 1992-07-09 | 1994-04-27 | Kloeckner Humboldt Deutz Ag | |
US6540218B2 (en) * | 1996-09-30 | 2003-04-01 | Kabushiki Kaisha Tsukada Nezi Seisakusho | Sheet feed shaft, apparatus for manufacturing same and method for manufacturing same |
US20030146318A1 (en) * | 2002-02-04 | 2003-08-07 | Condon Gary J. | Roll crusher teeth having hard compact material inserts |
US20050225098A1 (en) * | 2004-04-12 | 2005-10-13 | Christopher Kliefoth | Magnetic latch system |
US20130023393A1 (en) * | 2010-04-16 | 2013-01-24 | Flsmidth A/S | Wear-resistant roller |
US20130248630A1 (en) * | 2010-12-17 | 2013-09-26 | Thyssenkrupp Polysius Ag | Grinding roller of a roller mill |
US9272284B2 (en) * | 2010-12-17 | 2016-03-01 | Thyssenkrupp Industrial Solutions Ag | Grinding roller of a roller mill |
WO2012092427A1 (en) * | 2010-12-29 | 2012-07-05 | Flsmidth A/S | Crushing body and method of making the same |
CN102794212A (en) * | 2012-08-15 | 2012-11-28 | 成都市新力设备制造有限责任公司 | Combined roller |
CN103480453A (en) * | 2013-08-30 | 2014-01-01 | 绵阳金鼎机电技术有限公司 | High-precision wear-resistant tooth roller easy to integrally disassemble and install and manufacturing method thereof |
CN103480453B (en) * | 2013-08-30 | 2016-02-03 | 绵阳金鼎机电技术有限公司 | The manufacture method of a kind of high accuracy, easily integral disassembly, assembly wear-resistant tooth roller |
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