EP0019541B1 - Dispositif pour le réglage à distance de l'intervalle séparant une enclume d'un rotor de concasseur à percussion - Google Patents

Dispositif pour le réglage à distance de l'intervalle séparant une enclume d'un rotor de concasseur à percussion Download PDF

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Publication number
EP0019541B1
EP0019541B1 EP80400657A EP80400657A EP0019541B1 EP 0019541 B1 EP0019541 B1 EP 0019541B1 EP 80400657 A EP80400657 A EP 80400657A EP 80400657 A EP80400657 A EP 80400657A EP 0019541 B1 EP0019541 B1 EP 0019541B1
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EP
European Patent Office
Prior art keywords
chamber
fact
cylinder
rod
variable volume
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
Application number
EP80400657A
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German (de)
English (en)
French (fr)
Other versions
EP0019541A1 (fr
Inventor
Hervé Riu
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.)
Appareils Dragon SA
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Appareils Dragon SA
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Publication date
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Application filed by Appareils Dragon SA filed Critical Appareils Dragon SA
Priority to AT80400657T priority Critical patent/ATE1846T1/de
Publication of EP0019541A1 publication Critical patent/EP0019541A1/fr
Application granted granted Critical
Publication of EP0019541B1 publication Critical patent/EP0019541B1/fr
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    • 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
    • B02C13/02—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
    • B02C13/06—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor
    • B02C13/09—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor and throwing the material against an anvil or impact plate
    • B02C13/095—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor and throwing the material against an anvil or impact plate with an adjustable anvil or impact plate

Definitions

  • the present invention relates to impact crushers comprising anvils or impact screens cooperating with rotors provided with impact parts. It relates more particularly to a device making it possible to remotely adjust the interval separating an anvil from a rotor in such a crusher.
  • the known arrangements have the disadvantage of a lack of flexibility, in particular not allowing rapid intervention, especially when it comes to changing the setting when the crusher is in service. This drawback is particularly troublesome when the triggering of the safety device causes a disturbance of the adjustment, which is the case when the safety device is itself hydraulically actuated.
  • the known arrangements are, moreover, extremely complicated and lead to costly embodiments.
  • the main object of the invention is to avoid the aforementioned drawbacks.
  • a more specific subject of the invention is a device for the remote adjustment of the interval separating an anvil from an impact crusher rotor, comprising a rod, one of the ends of which is connected to the anvil, a variable volume, the rod being subject to move longitudinally according to the volume variations of said chamber, the latter being defined by a cylinder coaxial with the rod, said cylinder being provided with a bottom at its end furthest from the anvil , and by a piston displaceable in a sealed manner inside the cylinder, and a hydraulic unit connected to the variable volume chamber, characterized in that the piston to which the other end of the rod is subjected, is subjected to a counter permanent pressure under the action of elastic means, said back pressure acting in the direction which brings the anvil closer to the rotor, and in that the hydraulic unit comprises means for introducing into the flight chamber ume variable and to extract dosed quantities of liquid from it.
  • the cylinder advantageously comprises a fixed transverse partition sealed through by the rod, the variable volume chamber being defined by a first section of the cylinder included between the piston and said partition.
  • the elastic means are preferably arranged between the piston and the bottom of the cylinder.
  • the piston is tightly traversed by the rod, and is mounted floating inside the cylinder, abutment means being provided at the other end of the rod, namely the end opposite to that which is integral with the anvil, while another piston of a jack is mounted on the rod between the transverse partition and the end of the rod to which the anvil is connected, the chamber of said cylinder being formed by a second section of cylinder extending the first section, anvil side.
  • the cylinder is provided with a damping means which is advantageously constituted by an oleopneumatic accumulator ensuring the supply of the chamber of the cylinder.
  • Said cylinder chamber is preferably connected to the oleo-pneumatic accumulator by means of a unidirectional flow limiter.
  • the hydraulic unit comprises a two-chamber volumetric metering device, including a metering chamber connected to the variable volume chamber, and means for filling said metering chamber, for emptying it and for transferring a dose from said chamber to the volume chamber variable, and vice versa.
  • connection between the metering chamber and the variable volume chamber is carried out by a pipe provided with two piloted non-return valves.
  • the aforementioned means of the hydraulic power unit comprise an oil reservoir, a three-position distributor, a pump sucking the oil into the reservoir and delivering it to the three-position distributor, the two chambers of the metering device being connected to said distributor.
  • connection between the metering chamber and the three-position distributor takes place through a piloted non-return valve.
  • the hydraulic power unit also includes a control line connected to the pump outlet and fitted with a two-position distributor to control either the non-return valves provided between the metering chamber and the variable volume chamber , or the non-return valve provided between the metering chamber and the three-position distributor.
  • a pipe connected to that which connects the metering chamber to the variable volume chamber, to connect said metering chamber to the chamber variable volume homologous to the additional anvil, on the other hand, a two-position distributor mounted on the control line, to control the non-return valves homologous to said additional anvil.
  • the figures represent the entire device during the same operation, the liquid extracted from the variable volume chamber being transferred to the metering device.
  • a percussion crusher is seen in which the materials to be treated are introduced by a pipe 1. These materials are thus brought into contact with a rotor 4 rotating at high speed around a horizontal axis; said rotor is provided on its periphery with impact pieces 8, hammers for example, which strike the materials and ensure a first fragmentation thereof.
  • An articulated anvil 2 struck by the materials, projected by the rotor 4 returns them onto said rotor, and this until the size of said materials is sufficiently reduced to allow their evacuation to a chamber 5 limited by a second anvil 3, and in which the process of fragmentation continues. Materials having a sufficiently reduced size are discharged from chamber 5 to the lower part of the crusher.
  • intervals R1 and R2 separating the anvils 2 and 3 respectively and the fictitious cylinder 9 enveloping the impact pieces 8 during their rotation.
  • the adjustment of these intervals is effected by actuating the rods 6 and 7 at one end of which the anvils 2 and 3 are respectively articulated.
  • the adjustment device illustrated in FIG. 2 with reference to one of the two anvils, namely the anvil 2, is provided, as will be explained below, with safety means making it possible to ensure the eclipsing of said anvil anvil to allow passage and evacuation of an enormous body.
  • FIG 2 we see a cylinder 24 along the axis of which is arranged the rod at one end of which is articulated the anvil 2.
  • the cylinder 24 is provided with a bottom 25 at its end furthest from the anvil 2.
  • the cylinder 24 has, moreover, a fixed transverse partition 21 crossed in leaktight manner by the rod 6.
  • a floating piston 30 connected to the bottom 25 by a spring of pressure 26. This piston which can be moved in a sealed manner in the cylinder 24 is crossed, also in a sealed manner, by the rod 6.
  • a stop 31 constituted by a shoulder of said rod or by a nut mounted on a threaded part of said rod, for example.
  • the section of the cylinder 24 between the fixed partition 21 and the floating piston 30 defines a variable volume chamber 23 in which pressure is permanently exerted by said piston under the action of the spring 26.
  • a cylinder piston 32 is fixed on the rod 4 between the fixed partition 21 and the end of the rod 6 to which the anvil 2 is articulated.
  • the chamber 22 of this cylinder is constituted by a section of the cylinder 24 extending the chamber variable volume 23 anvil side 2.
  • the chamber 23 is supplied with liquid, oil for example, under conditions which will be specified below, while the chamber 22 is supplied by an oleopneumatic accumulator 28 via a one-way flow limiter 27.
  • the mark 29 designates an outlet for filling and draining the oil from the accumulator 28.
  • the rod 6 in the working position is stationary because it is wedged by the piston 30 bearing on the stop means 31 , on the one hand, and that, on the other hand, it is permanently subjected to a force due to the pneumatic pressure of the accumulator 28, said force being applied to the piston 32.
  • the rod 6 cannot move only if an effort greater than that defined above is exerted on the anvil 2.
  • the chamber 23 is connected to a hydraulic unit, marked 33 as a whole, comprising means which will now be described for introducing into said chamber and for extracting therefrom metered quantities of liquid, oil for example, in order to vary the volume of said bedroom.
  • the pipe 34 connecting the central unit 33 and the chamber 23 comprises two piloted non-return valves 10 and 11.
  • the central unit 33 comprises a reservoir 13 in which a pump 15 sucks in oil after it has been filtered by the filter 14 and discharges it to a distributor 17 with three positions.
  • the reference 16 designates a nozzle provided for the discharge of the pump 15.
  • the central unit 33 further comprises a volumetric metering device 19 with two chambers, one of which 19a is connected to the distributor 17, and the other, the metering chamber 19b , is connected on the one hand to the pipe 34, on the other hand to the distributor 17 by means of a piloted non-return valve 18.
  • the reference 19c designates the sealed piston of the metering device 19, the movements of said piston controlling the volume variations in opposite directions of the chambers 19a and 19b.
  • a control line 35 connected to the discharge of the pump 15, is provided to control either the valve 18 or (and simultaneously) the two valves 10 and 11 depending on the position of a two-position distributor 20 mounted on said control line, inside the hydraulic unit 33.
  • the control line 35 is also provided, outside the hydraulic unit, with a distributor 12 with two positions orienting the control action towards said homologous valves.
  • valves 10 and 11 are arranged on the chamber 23, the flow limiter 27 and the accumulator 28 are arranged on the cover of the crusher, near the anvil 2, while the hydraulic unit 33 and the distributor 12 are arranged at a distance from the crusher.
  • the non-return valves, the flow limiter and the accumulator relating to the anvil 3 are arranged in a similar manner.
  • FIG. 3 illustrates the first operating phase which has just been described .
  • FIG. 4 illustrates the second operating phase which has just been described.
  • the mass of the anvil 2 is large, and more particularly when the rod 6 is vertical or at least sufficiently inclined, it is possible to dispense with the use of the piston 32 and of the accumulator 28.
  • the anvil 2 is then held in position under the effect of its own weight. It is then essential to provide a mechanical damping means to limit the intensity of the shock on the piston 30 when, at the end of the above-mentioned second phase, the anvil 2 returns to its working position.
  • the metering device 19 more precisely its metering chamber 19b, is filled.
  • the distributors 17 and 20 are brought into position 1.
  • the pump 15 is then started until the metering unit 19 is completely filled, the valve 18 being turned on (FIG. 5).
  • the contents of the metering device 19 are transferred to the chamber 23.
  • the distributors 17 and 20 are brought to position 2.
  • the pump 15 is again started.
  • the piston 19c of the metering device 29 then delivers the oil into the chamber 23 while the control line 35 acts on the valves 10 and 11 to make them passable.
  • the piston 30 moves, driving the rod 6 which separates the anvil from the rotor 4 (FIG. 6).
  • the metering device 19 is emptied.
  • the distributor 17 is brought to position 2 and the distributor 20 to position 1.
  • the pump 15 is then started until the chamber is completely emptied.
  • the valve 18 being turned on, the oil discharged from the metering unit is returned to the reservoir 13 (FIG. 7).
  • oil extracted from the chamber 23 is transferred to the metering device 19.
  • the distributor 17 is brought to position 0 and the distributor 20 to position 2.
  • the pump 15 is again started.
  • the pilot pressure then actuates the valves 10 and 11.
  • the oil in the chamber 23 is emptied into the metering device 19 until 'with full filling of the latter.
  • the piston 30 moves in the direction of the partition 21 while the rod 6 moves correlatively by bringing the anvil closer to the rotor 4 (FIG. 8).
  • the security function can also be provided by means other than those described.
  • the piston 30, instead of being produced in the form of a floating piston, can therefore be made integral with the rod 6 and thus constitute a cylinder piston, the variable volume chamber then being the chamber of said cylinder.
  • This chamber can be indifferently provided between the piston 30 and the bottom 25 of the cylinder 24 or between the piston 30 and the partition 21, as in the example shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Crushing And Grinding (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Fluid-Damping Devices (AREA)
EP80400657A 1979-05-17 1980-05-13 Dispositif pour le réglage à distance de l'intervalle séparant une enclume d'un rotor de concasseur à percussion Expired EP0019541B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80400657T ATE1846T1 (de) 1979-05-17 1980-05-13 Vorrichtung zur fernsteuerung der distanz, welche eine prallplatte von einem rotor einer prallmuehle trennt.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7912576 1979-05-17
FR7912576A FR2456557A1 (fr) 1979-05-17 1979-05-17 Dispositif pour le reglage a distance de l'intervalle separant une enclume d'un rotor de concasseur a percussion

Publications (2)

Publication Number Publication Date
EP0019541A1 EP0019541A1 (fr) 1980-11-26
EP0019541B1 true EP0019541B1 (fr) 1982-11-24

Family

ID=9225585

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80400657A Expired EP0019541B1 (fr) 1979-05-17 1980-05-13 Dispositif pour le réglage à distance de l'intervalle séparant une enclume d'un rotor de concasseur à percussion

Country Status (4)

Country Link
EP (1) EP0019541B1 (enrdf_load_stackoverflow)
AT (1) ATE1846T1 (enrdf_load_stackoverflow)
DE (1) DE3061140D1 (enrdf_load_stackoverflow)
FR (1) FR2456557A1 (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020114106A1 (de) 2020-05-26 2021-12-02 Kleemann Gmbh Brecher
DE102023116990B3 (de) 2023-06-28 2024-11-07 Kleemann Gmbh Brecher für mineralische Werkstoffe oder Recyclingwerkstoffe
EP4484013A1 (de) 2023-06-28 2025-01-01 Kleemann Gmbh Brecher für mineralische werkstoffe oder recyclingwerkstoffe
DE102023005483A1 (de) 2023-06-28 2025-01-02 Kleemann Gmbh Brecher für mineralische Werkstoffe oder Recyclingwerkstoffe

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3525101A1 (de) * 1985-07-13 1987-01-15 Orenstein & Koppel Ag Prallbrecher
DE3911271A1 (de) * 1989-04-07 1990-10-11 Salzgitter Maschinenbau Verfahren zum betrieb einer zerkleinerungsmaschine und anlage zur automatischen einstellung der zerkleinerungsmaschine
US5226604A (en) * 1989-04-07 1993-07-13 Salzgitter Maschinenbau Gmbh Method of and apparatus for adjusting comminuting machines
AT402803B (de) * 1995-02-22 1997-09-25 Wageneder Sbm Gmbh Prallbrecher
DE19511097C1 (de) * 1995-03-25 1996-07-11 Krupp Foerdertechnik Gmbh Verfahren zur automatischen Einstellung des Mahlspaltes einer Zerkleinerungsmaschine und Zerkleinerungsmaschine
RU2160638C2 (ru) * 1999-03-10 2000-12-20 Санкт-Петербургский государственный электротехнический университет Способ автоматического регулирования процесса измельчения в роторной дробилке и устройство для его осуществления
FR2837407B1 (fr) * 2002-03-21 2004-05-28 Metso Minerals Macon Sa Systeme de positionnement du rotor et d'indexation d'un broyeur a percussion
ITTO20040211A1 (it) * 2004-03-30 2004-06-30 Ohg Di Ponzano Vene To Spa Macchina frantumatrice di pietrisco e affini
ITVE20040043A1 (it) * 2004-11-05 2005-02-05 Franzoi Metalmeccanica S R L Dispositivo di regolazione delle corazze in mulini per materiali inerti e/o riciclaggio.
DE102010015583B4 (de) * 2010-04-19 2018-07-19 Kleemann Gmbh Verfahren zur Einstellung eines Arbeitsspaltes zwischen einer Prallschwinge und dem Schlagkreis eines Rotors
CN105195261B (zh) * 2015-10-27 2018-03-09 洛阳坤宇矿业有限公司 一种矿山用破碎机
DE102017002079B4 (de) 2017-03-04 2019-03-14 Hydrosaar Gmbh Prallbrechanlage
CN110773273A (zh) * 2019-11-06 2020-02-11 上海卡优美重工机械有限公司 一种反击式破碎机
CN111514963B (zh) * 2020-05-06 2021-12-10 宣城先达建设工程有限公司 一种容腔大小可变的压碎机

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2037104A1 (de) * 1970-07-27 1972-02-03 Hazemag Hartzerkleinerungs und Ze ment Maschinenbau GmbH, 4400 Munster Prallmühle mit gegenüber dem Rotor ein und verstellbarer nachgiebiger Mahlbahn
FR2374958A1 (fr) * 1976-12-23 1978-07-21 Int Engineering Corp Broyeur pour dechets

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020114106A1 (de) 2020-05-26 2021-12-02 Kleemann Gmbh Brecher
EP3919177A1 (de) 2020-05-26 2021-12-08 Kleemann Gmbh Brecher
US11779932B2 (en) 2020-05-26 2023-10-10 Kleemann Gmbh Crusher
DE102020114106B4 (de) 2020-05-26 2024-03-28 Kleemann Gmbh Brecher
DE102023116990B3 (de) 2023-06-28 2024-11-07 Kleemann Gmbh Brecher für mineralische Werkstoffe oder Recyclingwerkstoffe
EP4484013A1 (de) 2023-06-28 2025-01-01 Kleemann Gmbh Brecher für mineralische werkstoffe oder recyclingwerkstoffe
EP4484012A1 (de) 2023-06-28 2025-01-01 Kleemann Gmbh Brecher für mineralische werkstoffe oder recyclingwerkstoffe
DE102023005483A1 (de) 2023-06-28 2025-01-02 Kleemann Gmbh Brecher für mineralische Werkstoffe oder Recyclingwerkstoffe
DE102023116992A1 (de) 2023-06-28 2025-01-02 Kleemann Gmbh Brecher für mineralische Werkstoffe oder Recyclingwerkstoffe
EP4616951A2 (de) 2023-06-28 2025-09-17 Kleemann Gmbh Brecher für mineralische werkstoffe oder recyclingwerkstoffe

Also Published As

Publication number Publication date
DE3061140D1 (en) 1982-12-30
FR2456557B1 (enrdf_load_stackoverflow) 1984-02-17
FR2456557A1 (fr) 1980-12-12
ATE1846T1 (de) 1982-12-15
EP0019541A1 (fr) 1980-11-26

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