US3779470A - Rotor for use in impact crushers - Google Patents

Rotor for use in impact crushers Download PDF

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Publication number
US3779470A
US3779470A US00288792A US3779470DA US3779470A US 3779470 A US3779470 A US 3779470A US 00288792 A US00288792 A US 00288792A US 3779470D A US3779470D A US 3779470DA US 3779470 A US3779470 A US 3779470A
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US
United States
Prior art keywords
rotor
shaft
circumferential wall
centering
shaft sections
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
Application number
US00288792A
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English (en)
Inventor
B Smits
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Salzgitter Maschinenbau GmbH
Original Assignee
HAZEMAG HARTZERKLEINERUNG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HAZEMAG HARTZERKLEINERUNG filed Critical HAZEMAG HARTZERKLEINERUNG
Application granted granted Critical
Publication of US3779470A publication Critical patent/US3779470A/en
Assigned to SALZGITTER MASCHINENBAU GMBH reassignment SALZGITTER MASCHINENBAU GMBH ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: HAZEMAG DR. E. ANDREAS GMBH & CO., BY: KARL W. WISSING, RECEIVER IN BAKRUPTCY
Assigned to WISSING, KARL-WILHELM, TRUSTEE IN BANKRUPTCY reassignment WISSING, KARL-WILHELM, TRUSTEE IN BANKRUPTCY COURT APPOINTMENT (SEE DOCUMENT FOR DETAILS). Assignors: HAZEMAG DR. E. ANDREAS GMBH & CO. KG, BY: THE DISTRICT COURT OF GERMANY BANKRUPT
Assigned to HAZEMAG DR. E. ANDREAS GMBH & CO. reassignment HAZEMAG DR. E. ANDREAS GMBH & CO. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). DECEMBER 18, 1972 AND MARCH 21, 1977 RESPECTIVELY, GERMANY Assignors: HAZEMAG DR. E. ANDREAS KG (CHANGED TO), HAZEMAG, HARTZERKLEINERUNGS-UND ZEMENT-MASCHINENBAU-GESELLSCHAFT MIT BESCHRANKTER HAFTUNG (CHANGED TO)
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/28—Shape or construction of beater elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C21/00—Disintegrating plant with or without drying of the material

Definitions

  • ABSTRACT A rotor has a rotor shaft composed of two discrete shaft sections the adjacent ends of which are connected by a sleeve guided in appropriate bores of the ends, so that the shaft sections are axially aligned but have freedom of limited axial relative displacement.
  • Each shaft section carries a rotor end plate fixed to it and extending transversely of it, and a circumferential wall extends betweenand connects the end plates, surrounding the shaft.
  • the present invention relates generally to armor, and more particularly to a rotor for use in impact crushers. Still more particularly the present invention relates to a rotor for use in impact crushers of the type in which hot air streams are circulated.
  • Impact crushers of the type mentioned above are sometimes called crusher driers, and their purpose is to comminute material by impact in an impacting chamber and at the same time to effect drying of the material.
  • the drying is effected by the circulation of streams of hot air in the crusher.
  • the comminution by impacting in this type of crusher is effected by a rotor which is mounted in the impact chamber for rotation and upon which the material to be comminuted impinges.
  • Such rotors generally have a continuous rotor shaft provided with two axially spaced rotor end plates which are fixedly secured with the shaft for rotation, and with an inner and/or outer circumferential wall which surrounds the shaft intermediate the end plates and extends between the latter, being fixedly connected with .the end plates.
  • the rotor is further provided with impact or beating instrumentalities which are either mounted in slots provided for this purpose on the outer drum .wall or circumferential rotor wall, or if the rotor wall is located inwardly of the rotor periphcry, in slots which are provided in annular plates mounted on and surrounding the rotor wall.
  • a rotor particularly for use in impact crushers through which hot fluid-streams circulate
  • rotor briefly stated comprises a rotor shaft including two discrete shaft sections having respective adjacent ends. Connecting means cooperates with these ends and connects the shaft sections in axially aligned relationship and with freedom of limited relative axial displacement.
  • a pair of axially spaced rotor end plates are provided, each being mounted on one of the shaft sections surrounding and extending transversely of the same and the circumferential wall means extends between and connects the end plates fixedly with one another.
  • each of the end plates with an axially extending stub shaft by means of which the rotor could be journalled, and to omit those shaft portions which extendthrough the rotor from one to the other of the end plates.
  • Such a construction would not be capable of providing the necessary structural strength.
  • the connecting means connecting the ends of the shaft sections which is advantageously in form of a sleeve or bushing, and/or the ends of the shaft sections, are provided with centering members or spokes which extend in a substantially starshaped arrangement to the circumferential wall means, thus centering the shaft sections on and with reference to'the cirfumferential wall means.
  • the spokes or the 'like can be replaced by other suitable centering means, for instance annular plates or the like.
  • the-wall has two rotor end plates 2 which are welded to the wall 1 and/or 1a at the opposite axial ends thereof and which have connected with them by means of screws 3 the illustrated flanges 4.
  • the flanges 4 are each mounted on one of the two shaft sections 5 and 6 of the rotor shaft, andare welded to the respective shaft section.
  • the shaft sections 5 and 6 are axially aligned and have their respective inner ends 7 and 8 adjacent one another.
  • the ends 7 and 8 are connected within the confines of the wall 1 by a sleeve 9 which is placed over them and which serves to maintain them in axial alignment.
  • the sleeve 9 can be shrink-fitted on the end 8 of the shaft section 6 (or of course of the shaft section 5) or it can be weldedthereto, which is the form of connection illustrated in FIG. 1. A slight axial spacing exists between the ends 7 and 8.
  • the outer circumferential surface of the sleeve 9 is provided with four spokes 10 which are welded to it in the illustrated embodiment and whose outer edges engage the inner side of the circumferential wall 1, centering the sleeve 9 as well as the shaft section ends 7 and 8 with respect to the wall I. Inlieu of the provision of the spokes 10, or in addition to them, suchspokes can be provided on the shaft sections themselves, at their respective ends.
  • the rotor is provided in the end plates 2 with radial slots 11 and with one or more annular plates 12 surrounding the wall 1 intermediate the end plates 2.
  • Accommodated in these slots 11 are the beating instrumentalities in form of beating bars or the like of the rotor. They abut rearwardly against supports 13 which connect the plates 2 and 12 within the slots 11 with one another.
  • the invention is equally applicable to rotors which are constructed in other manner,for instance to rotors having a continuous outer circumferential wall on which holding elements may be welded to which the beating instrumentalities could be secured.
  • FIG. 2 differs only in some respects from that of FIG. 1 and like reference numerals have been assigned to like elements.
  • the shaft section 6 is provided with a recess in its end 8, thus forming itself a sleeve portion 9 which can be pushed over the end 7 of the shaft section 5, that is which can accommodate the end 7.
  • the shaft sections nevertheless have freedom of limited axial displacement.
  • a rotor particularly for use in impact crushers through which hot fluid streams circulate, comprising a rotor shaft including two discrete shaft sections having respective adjacent ends; connecting means cooperating with said ends and connecting said shaft sections in axially aligned relationship and with freedom of limited relative axial displacement; a pair of axially spaced rotor endplates each mounted on one of said shaft sections surrounding and extending transversely of the same; and circumferential wall means extending between and connecting said endplates fixedly with one another.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Drying Of Solid Materials (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
US00288792A 1971-09-14 1972-09-13 Rotor for use in impact crushers Expired - Lifetime US3779470A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2145868A DE2145868C3 (de) 1971-09-14 1971-09-14 Rotor für von heißen Trocknungsgasen durchströmte Prallmühlen

Publications (1)

Publication Number Publication Date
US3779470A true US3779470A (en) 1973-12-18

Family

ID=5819497

Family Applications (1)

Application Number Title Priority Date Filing Date
US00288792A Expired - Lifetime US3779470A (en) 1971-09-14 1972-09-13 Rotor for use in impact crushers

Country Status (8)

Country Link
US (1) US3779470A (es)
JP (1) JPS5118102B2 (es)
AT (1) AT320402B (es)
CA (1) CA961021A (es)
DE (1) DE2145868C3 (es)
ES (1) ES405664A1 (es)
FR (1) FR2153878A5 (es)
GB (1) GB1397278A (es)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6311910B1 (en) * 1999-11-09 2001-11-06 U.S. Manufacturing, Inc. Production plus hammer with protective pocket and rotor assembly
US20040232263A1 (en) * 2003-05-20 2004-11-25 David Hauch Hammermill with stub Shaft rotor apparatus and method
US20040238666A1 (en) * 2003-05-29 2004-12-02 Gray Paul R. Hammer with protective pocket
US20090224089A1 (en) * 2008-03-07 2009-09-10 Pallmann Maschinenfabrik Gmbh & Co. Kg Rotor and device for the comminution of input material
CN101572467B (zh) * 2009-06-16 2011-01-12 哈尔滨工业大学 高效率高速永磁同步电机
US20140145018A1 (en) * 2010-06-24 2014-05-29 Metso Brasil Industria E Comercio Ltda Roller for high pressure roller grinder, roller grinder, and method for assembling a roller for a roller grinder
US20180280985A1 (en) * 2015-09-29 2018-10-04 Khd Humboldt Wedag Gmbh Rotor for a disintegration device

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51107394A (en) * 1975-03-18 1976-09-22 Toyo Boseki Horiesuteruno seizohoho
JPS5278160A (en) * 1975-12-24 1977-07-01 Kawasaki Heavy Ind Ltd Crushing device
JP6541351B2 (ja) 2011-11-30 2019-07-10 ジニアテック リミテッド 光起電力システム
WO2013081477A1 (en) 2011-11-30 2013-06-06 Zinniatek Limited A roofing, cladding or siding product, its manufacture and its use as part of a solar energy recovery system
EP3000135B1 (en) 2013-05-23 2020-04-08 Zinniatek Limited Photovoltaic systems
US10850440B2 (en) 2014-12-01 2020-12-01 Zinniatek Limited Roofing, cladding or siding product
AU2015356689B2 (en) 2014-12-01 2020-10-15 Zinniatek Limited A roofing, cladding or siding apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE472241C (de) * 1929-02-22 Maschb Anstalt Humboldt Geteilte Nabentrommel fuer die Befestigung der Zerkleinerungswerkzeuge in Hammermuehlen
US1774464A (en) * 1927-06-07 1930-08-26 Wood Joseph Herbert James Machinery for grinding, mixing, and like operations
DE611867C (de) * 1933-11-26 1935-04-08 Fritz Schuster Quetschwalze, insbesondere fuer Textilgut
US2208316A (en) * 1937-01-13 1940-07-16 Black Clawson Co Breaker roll

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE472241C (de) * 1929-02-22 Maschb Anstalt Humboldt Geteilte Nabentrommel fuer die Befestigung der Zerkleinerungswerkzeuge in Hammermuehlen
US1774464A (en) * 1927-06-07 1930-08-26 Wood Joseph Herbert James Machinery for grinding, mixing, and like operations
DE611867C (de) * 1933-11-26 1935-04-08 Fritz Schuster Quetschwalze, insbesondere fuer Textilgut
US2208316A (en) * 1937-01-13 1940-07-16 Black Clawson Co Breaker roll

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6311910B1 (en) * 1999-11-09 2001-11-06 U.S. Manufacturing, Inc. Production plus hammer with protective pocket and rotor assembly
US20040232263A1 (en) * 2003-05-20 2004-11-25 David Hauch Hammermill with stub Shaft rotor apparatus and method
US7025294B2 (en) * 2003-05-20 2006-04-11 Carter Day International, Inc. Hammermill with stub shaft rotor apparatus and method
US20060107515A1 (en) * 2003-05-20 2006-05-25 Carter Day International, Inc. Hammermill with stub shaft rotor apparatus and method
US7249404B2 (en) 2003-05-20 2007-07-31 Carter Day International, Inc. Hammermill with stub shaft rotor apparatus and method
US20040238666A1 (en) * 2003-05-29 2004-12-02 Gray Paul R. Hammer with protective pocket
US20090224089A1 (en) * 2008-03-07 2009-09-10 Pallmann Maschinenfabrik Gmbh & Co. Kg Rotor and device for the comminution of input material
US8066212B2 (en) * 2008-03-07 2011-11-29 Pallmann Maschinenfabrik Gmbh & Co. Kg Rotor and device for the comminution of input material
CN101572467B (zh) * 2009-06-16 2011-01-12 哈尔滨工业大学 高效率高速永磁同步电机
US20140145018A1 (en) * 2010-06-24 2014-05-29 Metso Brasil Industria E Comercio Ltda Roller for high pressure roller grinder, roller grinder, and method for assembling a roller for a roller grinder
US9561508B2 (en) * 2010-06-24 2017-02-07 Metso Brasil Industria E Comercio Ltda Roller for high pressure roller grinder, roller grinder, and method for assembling a roller for a roller grinder
US20180280985A1 (en) * 2015-09-29 2018-10-04 Khd Humboldt Wedag Gmbh Rotor for a disintegration device
RU2705267C1 (ru) * 2015-09-29 2019-11-06 Кхд Хумболдт Ведаг Гмбх Ротор дробильной машины
US10786815B2 (en) * 2015-09-29 2020-09-29 Khd Humboldt Wedag Gmbh Rotor for a disintegration device

Also Published As

Publication number Publication date
JPS5118102B2 (es) 1976-06-07
JPS4837760A (es) 1973-06-04
GB1397278A (en) 1975-06-11
DE2145868C3 (de) 1979-01-04
CA961021A (en) 1975-01-14
FR2153878A5 (es) 1973-05-04
DE2145868B2 (de) 1978-05-03
AT320402B (de) 1975-02-10
ES405664A1 (es) 1975-07-16
DE2145868A1 (de) 1973-03-22

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Date Code Title Description
AS Assignment

Owner name: SALZGITTER MASCHINENBAU GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:HAZEMAG DR. E. ANDREAS GMBH & CO., BY: KARL W. WISSING, RECEIVER IN BAKRUPTCY;REEL/FRAME:005216/0056

Effective date: 19890510

Owner name: HAZEMAG DR. E. ANDREAS GMBH & CO.

Free format text: CHANGE OF NAME;ASSIGNORS:HAZEMAG, HARTZERKLEINERUNGS-UND ZEMENT-MASCHINENBAU-GESELLSCHAFT MIT BESCHRANKTER HAFTUNG (CHANGED TO);HAZEMAG DR. E. ANDREAS KG (CHANGED TO);REEL/FRAME:005216/0044

Effective date: 19881208

Owner name: WISSING, KARL-WILHELM, TRUSTEE IN BANKRUPTCY

Free format text: COURT APPOINTMENT;ASSIGNOR:HAZEMAG DR. E. ANDREAS GMBH & CO. KG, BY: THE DISTRICT COURT OF GERMANY BANKRUPT;REEL/FRAME:005216/0054

Effective date: 19881115