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WO1998036835A1 - Concasseur a machoires - Google Patents

Concasseur a machoires Download PDF

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Publication number
WO1998036835A1
WO1998036835A1 PCT/EP1998/000687 EP9800687W WO9836835A1 WO 1998036835 A1 WO1998036835 A1 WO 1998036835A1 EP 9800687 W EP9800687 W EP 9800687W WO 9836835 A1 WO9836835 A1 WO 9836835A1
Authority
WO
WIPO (PCT)
Prior art keywords
jaw
crushing
crusher
eccentric shaft
jaw crusher
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.)
Ceased
Application number
PCT/EP1998/000687
Other languages
German (de)
English (en)
Inventor
Ernst Josef Kronenberger
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO1998036835A1 publication Critical patent/WO1998036835A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B02C1/00—Crushing or disintegrating by reciprocating members
    • B02C1/02—Jaw crushers or pulverisers
    • B02C1/04—Jaw crushers or pulverisers with single-acting jaws

Definitions

  • the invention relates to a jaw crusher, in particular high-speed crusher, for high shredding performance of rock, ore or clinker with a rocker arm crusher with a vibratory exciter at its lower end by means of an eccentric drive, and one that is fixed relative to it and has a crushing jaw between it with downward crushing jaws forming a narrowing crushing gap, the oscillatable crushing jaw being mounted on the bottom of the eccentric shaft and being supported at the upper end against a movably supported support member by a tension spring arrangement.
  • Jaw crushers have long been known in a variety of different configurations. These features have in common the features that each jaw crusher has a movable crushing jaw and an oppositely fixed crushing jaw, between which the crushed material fed into the crushing gap is gradually crushed by periodic changes in distance.
  • the long-known KUE-KEN crusher was designed, in which the crushing jaws do not move relative to the material throughput during the crushing process, and which consequently works almost smoothly.
  • crank swing crusher in different designs are known, the movable crusher jaw being supported at one end in an eccentric shaft and supported at the other end by a movable support member.
  • a swing arm crusher is known in a special design, which is designed for a low height and should be suitable for a fast-running mode of operation with high throughput. However, no information is given on the speed. Nor is there any information on the crushing performance.
  • the known jaw crusher is characterized in a special way that in the upper area of the crushing area there is a limited oversize crushing zone which holds the rocks securely between the crushing tools.
  • the vibrating crushing jaw is mounted at the lowest end in an eccentric shaft and is supported at the top end against an obliquely upward-moving rocker arm, the force vector of which is set so steeply that it just touches the top end of the rocker arm.
  • the rocker in a modified form forms a support resting on two ends with an irregular load therebetween, but in the area between the supports that means in the present case that a very high bending stress arises between the lower eccentric and the upper support member through the material to be crushed.
  • the invention is based on the object of a jaw crusher, in particular a high-speed crank-rock crusher designed for high grinding capacity of rock, ore or clinker, with a vibrator excitable at its lower end by means of an eccentric drive , as well as with one of these fixed, between them a crushing jaw with a crushing gap to be narrowed crushing jaws, the vibrating crushing jaw being mounted on the bottom of the eccentric shaft and supported at the upper end against a movably supported support member by a tension spring arrangement which is held during the crushing process avoids an upward movement component and thus works almost smoothly, consequently realizes a relatively high crushing efficiency with high crushing performance of rock, ore or clinker and the effect of high bending stresses in the vibratable en Crushing jaw largely reduced, so that the rocker is lighter in design and can easily be operated with a reduced intrinsic inertia with a comparatively higher number of vibrations and reduced bearing stress with a compact overall height.
  • the drivable crushing jaw with a backward inclination is arranged at an angle between 5 ° and 10 ° relative to the vertical and the support member is preferably below the tension spring arrangement and with an angle relative to the horizontal between 15 ° and 30 ° is arranged.
  • the interaction of the two measures results in an almost frictionless operation, in particular the forces acting on the eccentric shaft being considerably reduced.
  • the flat position of the support member contributes significantly to this advantageous mode of operation.
  • the eccentric stroke of the eccentric shaft is between 18 mm and 22 mm.
  • the drive of the jaw crusher in connection with the flywheel is designed and tuned so that the crusher rocker is between 350 and 600 strokes per minute.
  • such a working speed has so far either not been achieved or was only achievable with above-average use of energy and wear and tear because, in the case of jaw crushers of conventional constructions, the material upward accumulation in the crushing gap increased with the operating speed in such a way that the movement of the material to be crushed became ever lower and thus lower the crushing performance decreased, what was called "supercritical" driving style in specialist circles.
  • conventional crushers have been operated at a maximum speed of 250 revolutions per minute.
  • FIG. 2 shows a kinematic diagram of the jaw crusher according to FIG. 1.
  • the illustration of the jaw crusher in the schematic diagram according to FIG. 1 shows that this crushes the material to be crushed in the lower region of the crushing gap 15 with the aid of the eccentric movement of the crushing jaw ⁇ 5 by the eccentric shaft 1, which carries the movable rocker 5.
  • the crusher shows an extremely compact design, the aim of which is to meet the following requirements: 1) Low dead weight, in order to be able to move mobile or mobile systems on the road to different construction sites quickly.
  • the force introduction of the eccentric shaft 1 into the oscillating crushing jaw 5 is arranged in the area of the lower third thereof, and the force application of the support member 3 is arranged in the area of its upper third.
  • the measure that the drivable crushing jaw 5 is arranged with a backward inclination relative to the vertical y-y at an angle ⁇ between 5 ° and 10 ° also contributes to this extremely advantageous result.
  • the design according to the invention is also characterized in that the support member 3 is preferably arranged below the tension spring arrangement 4 and at an angle relative to the horizontal x-x between 15 ° and 30 °.
  • the requirement for a comparatively small stroke is met in that the eccentric stroke of the eccentric shaft 1 is between 18 mm and 22 mm.
  • the design of the jaw crusher and in particular its drive in cooperation with the flywheel 14 can be designed so that the crusher rocker 5 executes between 350 and 400 strokes per minute.
  • the flywheel 14 is loosely mounted on the eccentric shaft 1 and connected to it in rotation by an overload torque safety device, for example a shear pin.
  • the fixed crushing rocker 7 is designed in the lower region in such a way that a larger or smaller gap can easily be set by inserted strips 11 on the abutment 8.
  • the required pivot point is arranged in the upper re-stock by a simple pan.
  • Both the movable crushing back ⁇ 5 and the fixed one Crushing jaws 7 are provided with crushing jaws 6 and 10 as wear parts in a manner known per se.
  • Figure 2 shows the kinematic situation of the crusher and in particular the angle of attack of the support member 3 and the angle ⁇ of the backward inclination of the

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)

Abstract

Concasseur à mâchoires, en particulier, concasseur primaire à mâchoires simple effet, fonctionnant à grande vitesse, à hautes performances, pour concassage de roches, minerais ou clinkers, comprenant deux mâchoires de concassage (5, 7), dont l'une est susceptible d'osciller à son extrémité inférieure par l'intermédiaire d'un entraînement par excentrique, et l'autre est montée fixe par rapport à la première, les deux mâchoires formant entre elles une gueule de broyage (13) se rétrécissant vers le bas pour former une fente de broyage (15); la mâchoire oscillante (5) est montée à son extrémité inférieure, sur l'arbre à excentrique (1) et est maintenue, à son extrémité supérieure, sollicitée élastiquement par des moyens à ressort de traction (4), à l'encontre d'un organe d'appui mobile (3). L'invention est caractérisée en ce que la force de l'arbre à excentrique (1) est transmise à la mâchoire oscillante (5) dans la région de son tiers inférieur, et en ce que la force de l'organe support (3) est transmise dans la région du tiers supérieur de ladite mâchoire.
PCT/EP1998/000687 1997-02-21 1998-02-09 Concasseur a machoires Ceased WO1998036835A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19706827.8 1997-02-21
DE1997106827 DE19706827A1 (de) 1997-02-21 1997-02-21 Backenbrecher

Publications (1)

Publication Number Publication Date
WO1998036835A1 true WO1998036835A1 (fr) 1998-08-27

Family

ID=7820997

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1998/000687 Ceased WO1998036835A1 (fr) 1997-02-21 1998-02-09 Concasseur a machoires

Country Status (2)

Country Link
DE (1) DE19706827A1 (fr)
WO (1) WO1998036835A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104668026A (zh) * 2015-03-13 2015-06-03 苏州圣谱拉新材料科技有限公司 一种振动破碎机
CN107115913A (zh) * 2017-05-11 2017-09-01 能诚集团有限公司 颚式破碎机
CN107899645A (zh) * 2018-01-03 2018-04-13 湖州志平矿山机械制造厂 一种v形破碎腔颚式破碎机
CN112844540A (zh) * 2021-01-07 2021-05-28 广州若雁贸易有限公司 一种矿山用破碎机

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT513392B1 (de) * 2012-10-18 2014-04-15 Hulek Anton Vorrichtung zum Behandeln von zumindest teilweise flüssiger Schlacke
CN112657579B (zh) * 2020-12-23 2022-03-22 福建琰衡实业有限公司 一种颚式破碎机
CN112958190B (zh) * 2021-02-05 2022-07-05 安徽华星选矿科技有限公司 一种煤矿破碎装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB805030A (en) * 1956-09-05 1958-11-26 Ronald Frederick Bourne Improvements in or relating to jaw crushers
US2865570A (en) * 1953-06-29 1958-12-23 Earle M Nutting Methods and means improving conveying and size segregation during crushing
US2921750A (en) * 1953-11-18 1960-01-19 Picalarga Marcello Stonebreaking machines
US3075713A (en) * 1961-05-15 1963-01-29 Mine And Smelter Supply Co Crusher jaws
DE29703076U1 (de) * 1997-02-21 1997-04-03 Kronenberger, Ernst Josef, 66706 Perl Backenbrecher

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2865570A (en) * 1953-06-29 1958-12-23 Earle M Nutting Methods and means improving conveying and size segregation during crushing
US2921750A (en) * 1953-11-18 1960-01-19 Picalarga Marcello Stonebreaking machines
GB805030A (en) * 1956-09-05 1958-11-26 Ronald Frederick Bourne Improvements in or relating to jaw crushers
US3075713A (en) * 1961-05-15 1963-01-29 Mine And Smelter Supply Co Crusher jaws
DE29703076U1 (de) * 1997-02-21 1997-04-03 Kronenberger, Ernst Josef, 66706 Perl Backenbrecher

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104668026A (zh) * 2015-03-13 2015-06-03 苏州圣谱拉新材料科技有限公司 一种振动破碎机
CN107115913A (zh) * 2017-05-11 2017-09-01 能诚集团有限公司 颚式破碎机
CN107899645A (zh) * 2018-01-03 2018-04-13 湖州志平矿山机械制造厂 一种v形破碎腔颚式破碎机
CN112844540A (zh) * 2021-01-07 2021-05-28 广州若雁贸易有限公司 一种矿山用破碎机

Also Published As

Publication number Publication date
DE19706827A1 (de) 1998-08-27

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