EP4090467A1 - Dispositif pour un concasseur - Google Patents

Dispositif pour un concasseur

Info

Publication number
EP4090467A1
EP4090467A1 EP21701197.2A EP21701197A EP4090467A1 EP 4090467 A1 EP4090467 A1 EP 4090467A1 EP 21701197 A EP21701197 A EP 21701197A EP 4090467 A1 EP4090467 A1 EP 4090467A1
Authority
EP
European Patent Office
Prior art keywords
crushing
jaw
frame
crusher
hollow cylinder
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.)
Granted
Application number
EP21701197.2A
Other languages
German (de)
English (en)
Other versions
EP4090467B1 (fr
EP4090467C0 (fr
Inventor
Bernardo NIEDERHAGEBÖCK
Martin WHEATLEY
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.)
Rubble Master HMH GmbH
Original Assignee
Rubble Master HMH GmbH
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 Rubble Master HMH GmbH filed Critical Rubble Master HMH GmbH
Publication of EP4090467A1 publication Critical patent/EP4090467A1/fr
Application granted granted Critical
Publication of EP4090467B1 publication Critical patent/EP4090467B1/fr
Publication of EP4090467C0 publication Critical patent/EP4090467C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • B02C1/005—Crushing or disintegrating by reciprocating members hydraulically or pneumatically operated
    • 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
    • B02C1/025—Jaw clearance or overload control
    • 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 device for a crusher with a frame for a crushing chamber comprising a cross-member, which frame is delimited by a crushing jaw which is drivingly connected to a reciprocating piston inserted into a hollow cylinder.
  • EP2662141B1 discloses a support frame with a lifting system, in which the lifting cylinder of the lifting system is supported against the crossbeam of the frame and stiffening elements are provided in the crossbeam to prevent the Derive forces.
  • the piston of the lifting system is connected to the movable jaw via a lever.
  • US6375105B1 shows a traverse which forms a carrier.
  • a lifting system with hollow cylinders is shown, in which the hollow cylinders are mounted on their cylinder heads on the side of the carrier facing away from the crushing chamber.
  • the devices in the prior art therefore require massive components and a robust connection of the components involved, so that material-to-material connections, massive flanges or additional stiffening elements are usually provided. These additional elements increase the space requirement, construction effort and maintenance intensity.
  • the EP2662141B1 connects the traverse centrally and not on the edge of the lifting system, which makes a recess in the traverse for the lifting system necessary. Due to this necessary recess, however, the traverse must be designed to be more stable than with storage at the edge, which increases the total weight.
  • the invention is therefore based on the object of providing a device which, while maintaining the same mechanical stability, reduces material fatigue and, without additional, stabilizing elements, is more space-saving and at the same time lighter.
  • the invention solves the problem posed by the fact that the displacement of the hollow cylinder lies completely within the cross member. If the crossbeam is weakened according to the invention, its mechanical stability is generally reduced, but the system pressure prevailing in the hollow cylinder, which is usually up to 400 bar, leads to stiffening, so that a weight reduction can be achieved without mechanical disadvantages. As a result of the simultaneous reduction in the overall length of the traverse, the lever arm formed by the traverse is also reduced, so that due to vibrations caused transverse forces are greatly minimized and thus material fatigue can be reduced. It can thus be accepted without further ado that the hollow cylinder is only accessible for maintenance purposes via a screwed lock on the side facing away from the crushing jaw due to the installation in the crossbeam. Because the cubic capacity, and thus the piston stroke, lie completely within the crossbeam, the total length of the device from the crossbeam to the drive-connected crusher jaw can be significantly reduced, whereby the space requirement in the crusher is reduced.
  • the material fatigue and the space requirement of the device can be further reduced by the crossbeam having a recess as a hollow cylinder which, together with the reciprocating piston inserted therein, limits the displacement.
  • the hollow cylinder is designed as a recess in the crossbeam, the mechanical load on the crossbeam is also reduced, as the integrated design means that forces directly through the crossbeam into the supporting structure of the jaw crusher are initiated, which enables a lighter construction.
  • the more compact design of the hollow cylinder as a recess in the crossbeam enables further weight savings.
  • the weight of the crusher can be reduced even further and the replacement of wear parts can be made easier if the traverse forms bearing bodies that engage positively in bearing receptacles of the frame as a rotation lock.
  • Forces and torques to be diverted are usually conducted from the device into the frame of the crusher via a material connection between the crossbeam of the device and the frame of the crusher. For this, however, it is not only necessary to reinforce the crossbeam in the connection area, but it is also necessary to treat the contact surfaces specially, for example by means of heat treatment for welded connections. Due to the form-fitting Storage can dispense with additional material expenditure and complex treatment of the contact surfaces, which simplifies production and further reduces weight.
  • the interlocking mounting also enables the device to be removed and reinstalled more easily, which solves the problem of the construction-related difficult replacement of wearing parts.
  • non-positive connections can be provided between the crossbeam and the frame, for example to compensate for laterally acting forces.
  • the traverse can, for example, be secured against rotation either via at least one rotationally asymmetrical bearing body per side or several rotationally symmetrical bearing bodies per side.
  • the crushing jaw is drive-connected to the reciprocating piston about a pivot axis that is essentially parallel to the conveying direction of the crushed material, relative to the cross member. If an unbreakable object enters the crushing chamber, large local forces act on the crushing jaw. Due to the pivotable connection of the crushing jaw with the reciprocating piston relative to the cross member, the crushing jaw can immediately, that is to say directly and without active control, execute a compensating movement until the device actively pulls the crushing jaw back.
  • a pivoting bearing arranged in the center of the crushing jaw does not restrict the functional principle shown here.
  • the pivoting mounting can be implemented with hinges or joints.
  • the pistons can either be supported individually on the crushing jaw or via a common element between the reciprocating piston and the crushing jaw.
  • the device comprises three such hollow cylinders, the stroke paths of which lie on a common plane. A particularly effective dissipation of the forces caused by unbreakable objects is obtained if the reciprocating piston is additionally drive-connected to a breaking jaw such that the breaking jaw can be pivoted in an axis parallel to the conveying direction of the broken material.
  • Figure 4 is a perspective view of the device on a smaller scale.
  • a device comprises a cross member 1 which is mounted in a frame 2.
  • the traverse 1 has hollow cylinders 3, the displacements of which lie completely within the traverse 1.
  • a reciprocating piston 4 is inserted, which is drive-connected to a breaking jaw 5 and forms a lifting system which can be operated, for example, by means of a hydraulic working medium.
  • the drive connection can be established via a predetermined breaking plate 6 which is placed on the reciprocating piston 4 via a connecting element 7.
  • the crushing jaw 5 is driven by an eccentric and delimits a crushing chamber 8, the position of the crushing jaw 5 and thus the resulting crushing gap being adjustable by the lifting system.
  • the breaking jaw 5 can additionally be connected to the frame 2 via a retraction mechanism such as a spring 9, the restoring force of which ensures a continuous connection between the breaking jaw 5 and the traverse 1.
  • a retraction mechanism such as a spring 9, the restoring force of which ensures a continuous connection between the breaking jaw 5 and the traverse 1.
  • bearing bodies 10 are provided, which positively connect the cross member 1 to the frame 2 as a rotation lock.
  • the reciprocating pistons 4 can compensate deformations of the crushing jaw 5, which are caused by unbreakable objects, by means of different stroke paths in their hollow cylinders 3.

Landscapes

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

Abstract

L'invention concerne un dispositif pour un concasseur, pourvu d'un cadre (2) qui comprend une traverse (1) et qui est destiné à une chambre de concassage (8) qui est délimitée par une mâchoire de concassage (5) qui se trouve en liaison d'entraînement avec un piston alternatif (4) inséré dans un cylindre creux (3). L'invention vise à réduire la fatigue du matériau, le poids et l'encombrement d'un dispositif de ce type tout en conservant la même stabilité mécanique. À cet effet, le volume balayé par le piston dans le cylindre creux (3) se situe entièrement à l'intérieur de la traverse (1).
EP21701197.2A 2020-01-13 2021-01-13 Dispositif pour un concasseur Active EP4090467B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50016/2020A AT523357B1 (de) 2020-01-13 2020-01-13 Vorrichtung für einen Brecher
PCT/AT2021/060011 WO2021142500A1 (fr) 2020-01-13 2021-01-13 Dispositif pour un concasseur

Publications (3)

Publication Number Publication Date
EP4090467A1 true EP4090467A1 (fr) 2022-11-23
EP4090467B1 EP4090467B1 (fr) 2025-08-13
EP4090467C0 EP4090467C0 (fr) 2025-08-13

Family

ID=74205555

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21701197.2A Active EP4090467B1 (fr) 2020-01-13 2021-01-13 Dispositif pour un concasseur

Country Status (5)

Country Link
US (1) US20230048034A1 (fr)
EP (1) EP4090467B1 (fr)
CN (1) CN115209997A (fr)
AT (1) AT523357B1 (fr)
WO (1) WO2021142500A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117427705B (zh) * 2023-12-15 2024-04-09 山东山矿机械有限公司 一种具有防堵功能的矿石破碎机
CN119702113B (zh) * 2024-12-30 2025-09-09 中国矿业大学 一种破碎机矿石干燥及破碎粉尘回收系统
CN120243237B (zh) * 2025-06-09 2025-08-22 晋中市宏明选煤设备有限公司 煤块击碎装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6375105B1 (en) * 2000-03-21 2002-04-23 Astec Industries, Inc. Jaw crusher toggle beam hydraulic relief and clearing
JP4247807B2 (ja) * 2000-09-26 2009-04-02 株式会社小松製作所 ジョークラッシャの出口隙間調整機構
EP2662141B1 (fr) * 2012-05-07 2016-02-24 Sandvik Intellectual Property AB Cadre de support de concasseur à mâchoires
CN102755917B (zh) * 2012-07-31 2015-07-08 上海东蒙路桥机械有限公司 颚式破碎机组
FI125850B (fi) * 2012-08-24 2016-03-15 Metso Minerals Inc Menetelmä ja laite jouston vähentämiseksi murskaimessa
EP2754499B1 (fr) * 2013-01-09 2017-03-15 Sandvik Intellectual Property AB Ensemble de montage de mâchoire mobile
US20140319259A1 (en) * 2013-04-26 2014-10-30 Minyu Machinery Corp. Ltd. Structure of crusher
FI20145241A7 (fi) * 2014-03-17 2015-09-18 Metso Minerals Inc Leukamurskain ja murskauslaitos
JP6509556B2 (ja) * 2014-12-22 2019-05-08 株式会社アーステクニカ ジョークラッシャ
CN205042521U (zh) * 2015-08-17 2016-02-24 宜昌楚丰矿业有限公司 一种新型颚式破碎机
DE102016115585B3 (de) * 2016-08-23 2017-07-20 Thyssenkrupp Ag Backenbrecher
DE102017204414B4 (de) * 2017-03-16 2025-01-02 Flsmidth A/S Brechschwinge und Backenbrecher
DE102018110267A1 (de) * 2018-04-27 2019-10-31 Kleemann Gmbh Hochdruckpumpe

Also Published As

Publication number Publication date
US20230048034A1 (en) 2023-02-16
EP4090467B1 (fr) 2025-08-13
WO2021142500A1 (fr) 2021-07-22
CN115209997A (zh) 2022-10-18
EP4090467C0 (fr) 2025-08-13
AT523357B1 (de) 2022-05-15
AT523357A1 (de) 2021-07-15

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