EP0930941B1 - Verfahren und einrichtung zur automatischen überwachung von maschinen, insbesondere für zerkleinerungsmaschinen, vorzugsweise rotorscheren - Google Patents

Verfahren und einrichtung zur automatischen überwachung von maschinen, insbesondere für zerkleinerungsmaschinen, vorzugsweise rotorscheren Download PDF

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Publication number
EP0930941B1
EP0930941B1 EP97913090A EP97913090A EP0930941B1 EP 0930941 B1 EP0930941 B1 EP 0930941B1 EP 97913090 A EP97913090 A EP 97913090A EP 97913090 A EP97913090 A EP 97913090A EP 0930941 B1 EP0930941 B1 EP 0930941B1
Authority
EP
European Patent Office
Prior art keywords
machine
comminutable
charging material
fact
comminution
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
EP97913090A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0930941A1 (de
Inventor
August Van Der Beek
Thomas Spiesshofer
Willi Schneider
Erwin Kaldenbach
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.)
Metso Lindemann GmbH
Original Assignee
Svedala Lindemann GmbH
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Filing date
Publication date
Application filed by Svedala Lindemann GmbH filed Critical Svedala Lindemann GmbH
Publication of EP0930941A1 publication Critical patent/EP0930941A1/de
Application granted granted Critical
Publication of EP0930941B1 publication Critical patent/EP0930941B1/de
Anticipated expiration legal-status Critical
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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
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/24—Drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/04—Safety devices

Definitions

  • the invention relates to a method and a device for automatic Monitoring of shredding machines like rotor shears for shredding bulky waste with two stored parallel to each other in a housing, counter-rotating, intermeshing cutting rotors, each consisting of several lined up on a shaft with cutting teeth provided rotor disks are formed.
  • Control devices for the protection of drives which are used for Overloading one of the drive elements generates signals that are sent via a control unit act on the drive.
  • These monitoring controls usually record Drive values, e.g. Current, power, speed, torque or the like ..
  • Crushers of the type described above are in operation exposed to specifically high and changing loads, their high Extreme values due to the parts of the Feed good are caused. These are in size, shape or Material quality very different, but can ultimately be in Classify crushable and non-crushable parts.
  • Sorting out destructive materials, such as heavy iron parts is after the Forward running through so-called reversing movements due to the design of the Cutting teeth and position of the rotor shear inevitably removed disruptive parts.
  • a control device for protecting an electromotive drive in particular a document shredder, which monitors the drive and generates a signal when it is overloaded, which acts on the drive via a control unit.
  • a control indicator element with a plurality of light-emitting diodes, which is controlled in stages depending on the drive values supplied to the control indicator element, the signal being generated depending on the control of one or more stages, which is a reverse run , the so-called reversing, or disengaging the drive.
  • US 4,560,110 has a hydraulic drive device for one Shredder sensing means attached to the drive means upstream in the fluid circuit are connected and to an increase in the force supplied to the pumping means respond above a predetermined value by generating a reverse signal to finally reverse the direction of rotation of the rotor shaft and thus the Remove blockage.
  • a switching unit in the power supply line to the motor a reversal of the motor in response to an increase in the Torque above a predetermined value as a result of the occurrence of a increased resistance on the cutting devices.
  • the invention is based, both from business and the task also constructive points of view when crushing in the forward run and in Reverse running, the so-called reversing movement, disruptive parts of the Comminution machines of the aforementioned type which separate out feed material Genus, despite the disruptive process of disruptive parts of the feed, which too shock-like, extremely high loads lead to the type of load on the machine recognize, continue the machine operation without interference and thereby distinguishable from comminutable and non-comminutable feed, whereby machine-related measurands are to be recorded and evaluated.
  • the invention is illustrated using exemplary embodiments of a basic type.
  • FIGS. 1, 4 and 5 show the method according to the invention on the basis of curve profiles in a coordinate system over the respective P-axis (pressure) and the respective t-axis (time) and the resulting kinematic processes with regard to the direction of rotation (arrows) of the cutting disks 8 (FIGS. 3, 4 and 5) one Rotor shear including the removal of heavy parts.
  • non-crushable feed is a relatively high amount due to the amount Rate of increase of the load (gradient) - after a possible Reversing - first the crushing process is interrupted, the non-crushable Thrown out of the feed material and then the normal, crushing movement continued (Fig. 1a).
  • the process can also be varied so that a Reversing is not absolutely necessary, but with one
  • the hydraulic motor drive is static from a standstill and starts without pressure Pressure builds up again and the shredding process is slow or steady started up, in order to either crush the goods or (re) determine that it is ultimately not crushable (Fig. 1b). It is essential that the registration of the gradient is below the set value Pmax. With practical Experiments have shown that the one shown here in FIG. 1 at M2 Peak machine load can also be above Pmax.
  • the sequence is as follows in a further embodiment of the method controlled that when a first measured variable M1 is reached at Pmax and accumulation a reversible movement of the drive, then a subsequent further movement for comminution is initiated in order to then when an adjustable second measured variable is exceeded due to the Presence of non-crushable feed the crushing process - after a possible reversal - first of all to abort the non-crushable Remove feed material and then in normal operation of a shredding to continue.
  • corresponding forces F1, F2, F3, F4 are derived, partly measured and evaluated or formed, according to one of the described embodiments of the rotor shear load.
  • the torque arm 1 is articulated on a piston rod 2 of a hydraulic cylinder 3 to absorb the force F1 from the rotary movement of the rotor shears.
  • a spring 4 is arranged to generate the force F2, which counteracts the force F1.
  • a hydraulic connection 5 to a reservoir-like container 6 is connected downstream of the piston chamber of the hydraulic cylinder 3. This is optionally filled in order to ensure the required prestressing as the base pressure for ensuring the prestressing and generating a prestressing force F3 which overlaps the force F2 and counteracts the force F1.
  • Sensors are accommodated in the hydraulic connection 5 for the generation of the measured variables M1, M2, in order to control the process sequence of the comminution process of the rotor shears typical of the method according to the invention due to the temporal differentiation of these measured variables (Fig. 1).
  • the means for the forces F1, F2 and F3 described in this way form a damping system with damping forces F4 for generating a damping decrement.
  • FIG. 4 Another variant of a device according to the invention according to FIG. 4 provides in the torque support 1, which acts as a bending beam, a measuring element 1.1 such as strain gauges for measuring the deflection of the torque support 1, which is connected to a measuring amplifier 1.2.
  • the torque arm 1 can also be supported as a further measuring element 1.3 with the interposition of a piezo element connected to another measuring amplifier 1.4, which measuring elements 1.1, 1.3 measure the force F1 corresponding to the rotor shear load.
  • the first 1.2 or the second measuring amplifier 1.4 evaluates the machine load according to FIGS.
  • a device according to the invention can also be used for implementation of the method lead when between the hydraulic motor 7 and a hydraulic pump 9 a pressure sensor 7.1 for recording the speed increase (Gradient) of the load is provided and a control 7.2 of the invention Process flow is influenced.
  • the process according to the invention and the corresponding process can be particularly effective Facilities used in practice with software installed ultimately to the shredding machine - like here the rotor shears - optimized comminution of bulky goods on the one hand and rejection on the other of non-crushable feed both highly efficient and gentle operate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Disintegrating Or Milling (AREA)
  • Shovels (AREA)
  • Crushing And Grinding (AREA)
  • Selective Calling Equipment (AREA)
EP97913090A 1996-10-11 1997-10-09 Verfahren und einrichtung zur automatischen überwachung von maschinen, insbesondere für zerkleinerungsmaschinen, vorzugsweise rotorscheren Expired - Lifetime EP0930941B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19641975A DE19641975C2 (de) 1996-10-11 1996-10-11 Verfahren und Einrichtung zur automatischen Überwachung von Maschinen, insbesondere für Rotorscheren
DE19641975 1996-10-11
PCT/DE1997/002314 WO1998016318A1 (de) 1996-10-11 1997-10-09 Verfahren und einrichtung zur automatischen überwachung von maschinen, insbesondere für zerkleinerungsmaschinen, vorzugsweise rotorscheren

Publications (2)

Publication Number Publication Date
EP0930941A1 EP0930941A1 (de) 1999-07-28
EP0930941B1 true EP0930941B1 (de) 2000-05-24

Family

ID=7808482

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97913090A Expired - Lifetime EP0930941B1 (de) 1996-10-11 1997-10-09 Verfahren und einrichtung zur automatischen überwachung von maschinen, insbesondere für zerkleinerungsmaschinen, vorzugsweise rotorscheren

Country Status (10)

Country Link
EP (1) EP0930941B1 (da)
JP (2) JP2000504995A (da)
KR (1) KR100334419B1 (da)
AT (1) ATE193228T1 (da)
BR (1) BR9712982A (da)
CZ (1) CZ296882B6 (da)
DE (2) DE19641975C2 (da)
DK (1) DK0930941T3 (da)
ES (1) ES2146090T3 (da)
WO (1) WO1998016318A1 (da)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002040169A1 (de) 2000-11-15 2002-05-23 Svedala Lindemann Gmbh Verfahren und anlage zur zerkleinerung von abfall
US6736342B2 (en) 2000-02-15 2004-05-18 Mayfran International B.V. Method and apparatus for comminuting chips
DE102015119008A1 (de) 2015-11-05 2017-05-11 Jenz Gmbh Maschinen- Und Fahrzeugbau Zerkleinerungsmaschine und deren Arbeitsverfahren

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20010673A7 (fi) 2001-03-30 2002-10-01 Metso Minerals Tampere Oy Järjestelmä tiedon keräämiseksi
DE10240048B4 (de) * 2002-08-27 2007-03-29 Weima Maschinenbau Gmbh Vorrichtung zur Zerkleinerung von schneidbaren Materialien
DE10333359B3 (de) 2003-07-23 2005-01-20 Vecoplan Maschinenfabrik Gmbh & Co. Kg Zerkleinerungsvorrichtung für Abfälle
KR100623580B1 (ko) * 2005-03-03 2006-09-14 장태균 분쇄기에서의 재료 투입량 조절 장치 및 방법
CN101603559B (zh) * 2009-06-25 2011-10-19 三一重工股份有限公司 检测液压系统效率参数的方法和装置及工程机械
KR101223011B1 (ko) * 2011-04-22 2013-01-17 주식회사 포스코 원료 파쇄 장치 및 이를 이용한 원료 파쇄 방법
CN115628241B (zh) * 2022-11-30 2026-02-06 徐州徐工矿业机械有限公司 一种多功能破碎主机试验装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4034918A (en) * 1975-08-06 1977-07-12 Saturn Manufacturing, Inc. Drive arrangement for rotary shredding apparatus
GB2024654A (en) * 1978-07-05 1980-01-16 Metal Box Co Ltd Dealing with intractable material in a shredding machine
DE2937846C2 (de) * 1979-09-19 1985-05-15 Engelbrecht + Lemmerbrock Gmbh + Co, 4520 Melle Maschine zum Zerkleinern von sperrigem Material
US4793561A (en) * 1982-05-24 1988-12-27 Mac Corporation Of America Speed-responsive reversing hydraulic drive for rotary shredder
US4560110A (en) * 1982-06-17 1985-12-24 Mac Corporation Of America Current draw-actuated hydraulic drive arrangement for rotary shredder
NL8303051A (nl) * 1983-09-01 1985-04-01 Joannes Pierre Hendricus Alexa Motorisch aangedreven inrichting voorzien van middelen ter voorkoming van overbelasting, in het bijzonder voor toepassing bij een mobiele versnipperinstallatie.
DE3412306A1 (de) * 1984-04-03 1985-10-10 Feinwerktechnik Schleicher & Co, 7778 Markdorf Steuerungseinrichtung fuer den antrieb beispielsweise eines aktenvernichters oder aehnlichen geraetes
US5444987A (en) * 1993-07-02 1995-08-29 Alsenz; Richard H. Refrigeration system utilizing a jet enthalpy compressor for elevating the suction line pressure
JP3294719B2 (ja) 1994-08-04 2002-06-24 株式会社小松製作所 破砕機の駆動装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6736342B2 (en) 2000-02-15 2004-05-18 Mayfran International B.V. Method and apparatus for comminuting chips
WO2002040169A1 (de) 2000-11-15 2002-05-23 Svedala Lindemann Gmbh Verfahren und anlage zur zerkleinerung von abfall
DE10056637B4 (de) * 2000-11-15 2005-10-13 Metso Lindemann Gmbh Verfahren und Anlage zur Zerkleinerung von Abfall
DE102015119008A1 (de) 2015-11-05 2017-05-11 Jenz Gmbh Maschinen- Und Fahrzeugbau Zerkleinerungsmaschine und deren Arbeitsverfahren

Also Published As

Publication number Publication date
DE19641975A1 (de) 1998-04-16
KR20000049017A (ko) 2000-07-25
KR100334419B1 (ko) 2002-05-03
DE59701784D1 (de) 2000-06-29
ES2146090T3 (es) 2000-07-16
EP0930941A1 (de) 1999-07-28
CZ296882B6 (cs) 2006-07-12
JP2000504995A (ja) 2000-04-25
ATE193228T1 (de) 2000-06-15
BR9712982A (pt) 2000-04-18
DE19641975C2 (de) 2002-11-07
JP2004105969A (ja) 2004-04-08
DK0930941T3 (da) 2000-10-02
WO1998016318A1 (de) 1998-04-23
CZ124599A3 (cs) 1999-12-15

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