US3813045A - Hammer crusher - Google Patents

Hammer crusher Download PDF

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Publication number
US3813045A
US3813045A US00291643A US29164372A US3813045A US 3813045 A US3813045 A US 3813045A US 00291643 A US00291643 A US 00291643A US 29164372 A US29164372 A US 29164372A US 3813045 A US3813045 A US 3813045A
Authority
US
United States
Prior art keywords
grating
housing
carriage
carriage means
anvil
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
US00291643A
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English (en)
Inventor
Greiffenstern K Von
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.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
Polysius AG
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 Polysius AG filed Critical Polysius AG
Application granted granted Critical
Publication of US3813045A publication Critical patent/US3813045A/en
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
    • B02C13/282—Shape or inner surface of mill-housings
    • B02C13/284—Built-in screens

Definitions

  • the invention relates to a hammer crusher comprising at least one crusher shaft carrying the hammers, an anvil and a replaceable grating disposed in the lower portion of the crusher housing.
  • Another unfavorable factor is that when wear occurs of individual parts of the grating, in particular of the grating zone disposed adjacent the anvil which is subjected to the highest stress, it is generally necessary to replace the entire grating.
  • the invention is therefore based on the problem of avoiding the aforementioned disadvantages and making a hammer crusher of the aforementioned type in such a manner that the removal of the grating is possible in a very simple manner and in addition account is taken of the varying wear of the individual grating regions.
  • this problem is solved in that the grating is divided into a grating plate adjoining the anvil and a grating basket which may be withdrawn from the crusher housing in the horizontal direction without appreciable lowering.
  • the grating plate is made only so wide that the upper edge of the end of the grating basket adjacent the grating plate lies slightly lower than the lower edge of the hammers. In this manner, the grating basket may without lowering be withdrawn beneath the crusher shaft equipped with the hammers in the horizontal direction, after which the grating plate can also be removed if necessary.
  • the division of the grating into a relatively narrow grating plate exposed to high wear and a large grating basket also has the substantial advantage that the grating plate can be replaced separately when correspondingly worn.
  • the solution according to the invention is suitable both for single-shaft hammer crushers and for doubleshaft hammer crushers.
  • FIG. 1 An exemplary embodiment of the invention is illustrated in the drawing. It shows a partial cross-section (left half) through a double-shaft hammer crusher according to the invention.
  • the double-shaft hammer crusher is made symmetrically with respect to the vertical center axis 1 and consequently the description of the left half illustrated will be sufficient.
  • the hammer crusher contains two rotating rotors or shafts 2 which are equipped with impact members or hammers 3 and cooperate with an anvil 4 common to both shafts and a grating which consists of a grating basket 5 and a grating plate 6 forming a bridge between the basket and the anvil 4.
  • Each grating basket 5 comprises a plurality of grating bars 7 arranged in an are adjacent the rotary path of the hammers and which are mounted in a carriage frame 8 which may be moved with the outer housing wall member 9 in a horizontal direction (double arrow 11) by a hydraulic drive mechanism 10, the two baskets being movable in opposite directions during removal.
  • roller guides 12 are provided beneath each hammer crusher and the unit forming the basket 5 may be moved on such guides.
  • the basket 5 In the driven-in state the basket 5 extends on both sides of a vertical plane passing through the axis of rotation of the rotor 2 and bears with its front end 13 on a stationary abutment 14, the rails 15 being raised slightly from the roller guides 12 (thus relieving the latter from the grinding pressure).
  • the upper (inner) edge of each grating basket adjacent the associated plate 6 lies slightly lower than the lower edge of the hammers 3.
  • the arrangement is however such that the basket 5 may be moved to one side only of the vertical plane through the axis of the rotor, i.e., withdrawn from the crusher housing in the horizontal direction, and without appreciable lowering.
  • the basket 5 is lowered at the beginning of this horizontal movement only by a few millimeters until the rails 15 bear on the roller guides 12.
  • the basket 5 is raised slightly when it is introduced by an inclined face into the abutment 14.
  • the grating plate 6 remains in the crusher housing and can then be separately replaced if necessary.
  • Hammer crusher apparatus comprising a housing; at least one rotor journaled in said housing for rotation about an axis; hammers carried by said rotor for movement in a rotary path;.anvil means fixed in said housing adjacent said path; grating means arranged in an are adjacent said path; carriage means supporting said grating means for movement relative to said rotor substantially horizontally without appreciable lowering from a first position within said housing and extending on both sides of a vertical plane passing through said axis to a second position in which said grating means is wholly on one side of said plane; and a fixed grating carried by said housing in a position to form a bridge between said anvil means and said grating means.
  • Apparatus according to claim 1 including abutment means engageable by said carriage means to provide vertical support therefor when said carriage means is in said first position.
  • Apparatus according to claim 1 including roller means supporting said carriage means for such movement.
  • Apparatus according to claim 1 including a second rotor journaled in said housing and having hammers carried thereby, said anvil means being common to both of said rotors.
  • Apparatus according to claim 5 including second grating means and second carriage means corresponding to the first-mentioned grating means and carriage means, respectively, said second carriage means also being movable substantially horizontally without appreciable lowering between first and second positions corresponding respectively to the first and second positions of said first-mentioned carriage means.
  • Apparatus according to claim 1 including roller means for supporting said carriage means during such movement thereof, and abutment means engageable by said carriage means to provide vertical support therefor when said carriage means is in said first position and relieve said roller means of the support of said carriage means.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
US00291643A 1971-11-08 1972-09-25 Hammer crusher Expired - Lifetime US3813045A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19717142142U DE7142142U (de) 1971-11-08 1971-11-08 Hammerbrecher

Publications (1)

Publication Number Publication Date
US3813045A true US3813045A (en) 1974-05-28

Family

ID=6624973

Family Applications (1)

Application Number Title Priority Date Filing Date
US00291643A Expired - Lifetime US3813045A (en) 1971-11-08 1972-09-25 Hammer crusher

Country Status (6)

Country Link
US (1) US3813045A (fr)
JP (1) JPS5148819B2 (fr)
BE (1) BE787855A (fr)
DE (1) DE7142142U (fr)
FR (1) FR2159871A5 (fr)
ZA (1) ZA727888B (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891152A (en) * 1972-08-09 1975-06-24 Hischmann Maschinenfabrik Geb Grate basket for hammer crushers
US4082231A (en) * 1975-12-01 1978-04-04 Gould Orval E Apparatus for grinding refuse
US4226375A (en) * 1978-12-21 1980-10-07 Copper Alloys Corp. Reduction mill
US4544105A (en) * 1982-04-01 1985-10-01 Kmw Erjo Ab Separating device for a wood chipper
US4544104A (en) * 1982-04-01 1985-10-01 Kmw Erjo Ab Wood chipper
US4988045A (en) * 1987-04-13 1991-01-29 American Pulverizer Company Vertical scrap metal crusher
US5381971A (en) * 1993-07-09 1995-01-17 Williams Patent Crusher And Pulverizer Company Grinding apparatus
US5513811A (en) * 1993-12-18 1996-05-07 Noell Service Und Maschinentechnik Gmbh Impactor with a pivotable grinding face
US5657933A (en) * 1995-08-16 1997-08-19 Williams; Robert M. Adjustable feed plate for paper shredder
US6435432B1 (en) * 2000-08-09 2002-08-20 David Lee Doskocil Brush chipper with a slidable feed roller
US6481650B1 (en) * 1999-03-08 2002-11-19 Mori Manufactory Co., Ltd. Method and apparatus for crushing waste tires
US20070284465A1 (en) * 2006-06-07 2007-12-13 Atsushi Kitaguchi Crusher
US20080283647A1 (en) * 2007-03-13 2008-11-20 Sotsky George R Modular Rotary Grinder
CN104785325A (zh) * 2015-04-02 2015-07-22 广东韶钢松山股份有限公司 一种可逆锤式破碎机弧形格板调节装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1588151A (en) * 1977-05-09 1981-04-15 Dresser Europe Sa Hammer mill
JPS56168841A (en) * 1980-05-31 1981-12-25 Fuji Industries Co Ltd Method of mounting and demounting screen for shredder
DE3215882A1 (de) * 1982-04-29 1983-11-03 Fried. Krupp Gmbh, 4300 Essen Hammerbrecher

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1494302A (en) * 1921-08-03 1924-05-13 Pennsylvania Crusher Co Breaker plate
US1647183A (en) * 1927-01-31 1927-11-01 Leggemann Albert Disintegrating mill
US2450492A (en) * 1944-05-20 1948-10-05 Jeffrey Mfg Co Removable screen structure for rotary beater mills
US2554071A (en) * 1949-07-09 1951-05-22 Jeffrey Mfg Co Pulverizer having a two-part housing
US2661158A (en) * 1951-11-19 1953-12-01 Frank D Fogle Rock crusher having contained rock screening and cooperating grate means
US2975985A (en) * 1958-02-12 1961-03-21 Gruendler Crusher And Pulveriz Grinders

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1494302A (en) * 1921-08-03 1924-05-13 Pennsylvania Crusher Co Breaker plate
US1647183A (en) * 1927-01-31 1927-11-01 Leggemann Albert Disintegrating mill
US2450492A (en) * 1944-05-20 1948-10-05 Jeffrey Mfg Co Removable screen structure for rotary beater mills
US2554071A (en) * 1949-07-09 1951-05-22 Jeffrey Mfg Co Pulverizer having a two-part housing
US2661158A (en) * 1951-11-19 1953-12-01 Frank D Fogle Rock crusher having contained rock screening and cooperating grate means
US2975985A (en) * 1958-02-12 1961-03-21 Gruendler Crusher And Pulveriz Grinders

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891152A (en) * 1972-08-09 1975-06-24 Hischmann Maschinenfabrik Geb Grate basket for hammer crushers
US4082231A (en) * 1975-12-01 1978-04-04 Gould Orval E Apparatus for grinding refuse
US4226375A (en) * 1978-12-21 1980-10-07 Copper Alloys Corp. Reduction mill
US4544105A (en) * 1982-04-01 1985-10-01 Kmw Erjo Ab Separating device for a wood chipper
US4544104A (en) * 1982-04-01 1985-10-01 Kmw Erjo Ab Wood chipper
US4988045A (en) * 1987-04-13 1991-01-29 American Pulverizer Company Vertical scrap metal crusher
US5381971A (en) * 1993-07-09 1995-01-17 Williams Patent Crusher And Pulverizer Company Grinding apparatus
AU685186B2 (en) * 1993-12-18 1998-01-15 Noell Service Und Maschinentechnik Gmbh Impactor with pivotable grinding path
US5513811A (en) * 1993-12-18 1996-05-07 Noell Service Und Maschinentechnik Gmbh Impactor with a pivotable grinding face
US5657933A (en) * 1995-08-16 1997-08-19 Williams; Robert M. Adjustable feed plate for paper shredder
US6481650B1 (en) * 1999-03-08 2002-11-19 Mori Manufactory Co., Ltd. Method and apparatus for crushing waste tires
US6435432B1 (en) * 2000-08-09 2002-08-20 David Lee Doskocil Brush chipper with a slidable feed roller
US20070284465A1 (en) * 2006-06-07 2007-12-13 Atsushi Kitaguchi Crusher
US7721983B2 (en) * 2006-06-07 2010-05-25 Hitachi Construction Machinery Co., Ltd. Crusher
US20080283647A1 (en) * 2007-03-13 2008-11-20 Sotsky George R Modular Rotary Grinder
US7578463B2 (en) * 2007-03-13 2009-08-25 Sotsky George R Modular Rotary Grinder
CN104785325A (zh) * 2015-04-02 2015-07-22 广东韶钢松山股份有限公司 一种可逆锤式破碎机弧形格板调节装置

Also Published As

Publication number Publication date
JPS5148819B2 (fr) 1976-12-23
ZA727888B (en) 1973-07-25
FR2159871A5 (fr) 1973-06-22
BE787855A (fr) 1972-12-18
DE7142142U (de) 1972-02-03
JPS4854551A (fr) 1973-07-31

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