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EP4090467B1 - Dispositif pour un concasseur - Google Patents

Dispositif pour un concasseur

Info

Publication number
EP4090467B1
EP4090467B1 EP21701197.2A EP21701197A EP4090467B1 EP 4090467 B1 EP4090467 B1 EP 4090467B1 EP 21701197 A EP21701197 A EP 21701197A EP 4090467 B1 EP4090467 B1 EP 4090467B1
Authority
EP
European Patent Office
Prior art keywords
crushing
jaw
crossmember
frame
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.)
Active
Application number
EP21701197.2A
Other languages
German (de)
English (en)
Other versions
EP4090467A1 (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
    • B02C1/02—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
    • 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

Definitions

  • the invention relates to a device for a crusher with a frame comprising a traverse for a crushing chamber, which is delimited by a crushing jaw which is drive-connected to a reciprocating piston inserted into a hollow cylinder.
  • the EP2662141B1 discloses a support frame with a lifting system, in which the lifting cylinder of the lifting system is supported against the cross member of the frame and stiffening elements are provided in the cross member to absorb the occurring To dissipate forces.
  • the piston of the lifting system is connected to the movable crushing jaw via a lever.
  • the US6375105B1 shows a crossbeam forming a support. This also shows a lifting system with hollow cylinders, in which the hollow cylinders are mounted at their cylinder heads on the side of the support facing away from the crushing chamber.
  • Document EP2754499A1 discloses a device for a crusher with a frame comprising a cross member for a crushing chamber, which is delimited by a crushing jaw which is drive-connected to a reciprocating piston inserted into a hollow cylinder.
  • the state-of-the-art devices therefore require massive components and a robust connection between 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 The crossbeam is mounted centrally and not at the edge of the lifting system, which requires a recess in the crossbeam for the lifting system. However, this necessary recess requires a more stable design for the crossbeam than with edge-mounted mounting, which increases the overall weight.
  • the invention is therefore based on the object of providing a device which reduces material fatigue while maintaining the same mechanical stability and is more space-saving and lighter without additional stabilising elements.
  • the invention solves the stated problem by locating the displacement of the hollow cylinder entirely within the cross member. While weakening the cross member according to the invention fundamentally reduces its mechanical stability, the system pressure prevailing in the hollow cylinder, which is typically up to 400 bar, leads to stiffening, so that a weight reduction can be achieved without mechanical disadvantages.
  • the simultaneous reduction in the overall length of the cross member also reduces the lever arm formed by the cross member, so that vibrations The resulting transverse forces can be significantly minimized, thus reducing material fatigue.
  • Material fatigue and the space required by the device can be further reduced by having the crosshead with a hollow cylinder recess which, together with the reciprocating piston installed therein, limits the displacement.
  • the hollow cylinder is designed as a recess in the crosshead, the mechanical load on the crosshead is also reduced, as the integrated design means that any forces that occur are evenly transmitted directly via the crosshead into the supporting structure of the jaw crusher, enabling a lighter construction.
  • the more compact design of the hollow cylinder as a recess in the crosshead enables further weight savings.
  • the weight of the crusher can be further reduced and the replacement of wear parts made easier if the crossbeam is fitted with bearing bodies that engage positively with the bearing mounts of the frame as a rotation lock.
  • forces and torques are transferred from the device to the crusher frame via a material-to-material connection between the crossbeam of the device and the crusher frame.
  • This requires not only appropriate reinforcement of the crossbeam in the connection area, but also special treatment of the contact surfaces, for example, by heat treatment in the case of welded connections.
  • the positive connection Bearings eliminate the need for additional materials and complex treatment of the contact surfaces, which simplifies production and further reduces weight.
  • the cross member is rotationally secured via the bearing bodies, the forces and moments to be dissipated are efficiently transferred to the crusher frame even without a material-to-material connection.
  • the positive bearing also enables easier removal and reinstallation of the device, which solves the problem of the design-related difficulty of replacing wearing parts.
  • force-locking connections can be provided between the cross member and the frame, for example to compensate for laterally acting forces.
  • the cross member can be rotationally secured either via at least one rotationally asymmetric bearing body per side or several rotationally symmetric bearing bodies per side.
  • the crushing jaw be pivotally connected to the reciprocating piston relative to the crosshead and drive-connected to the reciprocating piston about a pivot axis essentially parallel to the conveying direction of the crushed material. If an uncrushable object enters the crushing chamber, large local forces act on the crushing jaw. Due to the pivoting connection of the crushing jaw to the reciprocating piston relative to the crosshead, the crushing jaw can immediately, i.e. directly and without active control, perform a compensating movement until the device actively retracts the crushing jaw.
  • a pivoting bearing arranged centrally on the crushing jaw does not restrict the functional principle described here.
  • the pivoting mounting can be implemented in the simplest case with hinges or joints.
  • at least partially spherical pressure shells are arranged between A crushing jaw and reciprocating piston are provided, which enable a horizontal rotational movement of the crushing jaw to balance the force.
  • the pistons can be supported either individually on the crushing jaw or via a common element between the reciprocating pistons and the crushing jaw.
  • the device comprises three such hollow cylinders whose strokes lie on a common plane. A particularly effective dissipation of the forces caused by unbreakable objects is achieved if the reciprocating piston is additionally connected to a crushing jaw in such a way that the crushing jaw can be pivoted along an axis parallel to the conveying direction of the crushed material.
  • a device comprises a crossbeam 1 mounted in a frame 2.
  • the crossbeam 1 has hollow cylinders 3, the displacements of which lie entirely within the crossbeam 1.
  • a reciprocating piston 4 is inserted into each of the hollow cylinders 3, which is drive-connected to a crushing jaw 5 and forms a lifting system that 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 via an eccentric and delimits a crushing chamber 8, wherein the position of the crushing jaw 5 and thus the resulting crushing gap can be adjusted by the lifting system.
  • the crushing jaw 5 can also be connected to the frame 2 via a retraction mechanism, such as a spring 9, whose restoring force ensures a continuous connection between the crushing jaw 5 and the crossbeam 1.
  • a retraction mechanism such as a spring 9, whose restoring force ensures a continuous connection between the crushing jaw 5 and the crossbeam 1.
  • the hollow cylinders 3 are designed as recesses in the cross member 1, since in this case the compressed working medium in the displacement chamber stiffens the hollow cylinders 3 against mechanical loads.
  • bearing bodies 10 are provided which form-fit the cross member 1 to the frame 2 as a rotation lock.
  • the lifting pistons 4 can compensate for deformations of the crushing jaw 5 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)

Claims (5)

  1. Dispositif pour un concasseur comprenant un cadre (2) comportant une traverse (1) pour une chambre de concassage (8) délimitée par une mâchoire de concassage (5) reliée en relation d'entraînement à un piston élévateur (4) logé dans un cylindre creux (3), caractérisé en ce que la cylindrée du cylindre creux (3) se trouve entièrement à l'intérieur de la traverse (1).
  2. Dispositif selon la revendication 1, caractérisé en ce que la traverse (1) présente un évidement en tant que cylindre creux (3) qui délimite, conjointement avec le piston élévateur (4) logé dans celui-ci, la cylindrée.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que la traverse (1) forme des corps de palier (10) qui s'engagent par complémentarité de forme dans des logements de palier du cadre (2) pour empêcher la rotation.
  4. Dispositif selon les revendications 1 à 3, caractérisé en ce que la mâchoire de concassage (5) est reliée par relation d'entraînement au piston élévateur (4) de manière à pouvoir pivoter autour d'un axe de pivotement sensiblement parallèle à la direction de transport du matériau concassé par rapport à la traverse (1).
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que plusieurs cylindres creux (3) sont prévus, dont les cylindrées sont entièrement situées à l'intérieur de la traverse (1) et dont les courses peuvent être régulées par groupes.
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 EP4090467A1 (fr) 2022-11-23
EP4090467B1 true 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
FI20145241L (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
WO2021142500A1 (fr) 2021-07-22
AT523357A1 (de) 2021-07-15
US20230048034A1 (en) 2023-02-16
EP4090467A1 (fr) 2022-11-23
CN115209997A (zh) 2022-10-18
AT523357B1 (de) 2022-05-15
EP4090467C0 (fr) 2025-08-13

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