EP0063345B1 - Mécanisme d'entraînement en rotation pour machines de creusement - Google Patents

Mécanisme d'entraînement en rotation pour machines de creusement Download PDF

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Publication number
EP0063345B1
EP0063345B1 EP82103085A EP82103085A EP0063345B1 EP 0063345 B1 EP0063345 B1 EP 0063345B1 EP 82103085 A EP82103085 A EP 82103085A EP 82103085 A EP82103085 A EP 82103085A EP 0063345 B1 EP0063345 B1 EP 0063345B1
Authority
EP
European Patent Office
Prior art keywords
drill head
converter
head drive
motor
drive
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
EP82103085A
Other languages
German (de)
English (en)
Other versions
EP0063345A3 (en
EP0063345A2 (fr
Inventor
Rudolf Speelmans
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.)
Mhwirth GmbH
Original Assignee
Wirth Maschinen und Bohrgeraete Fabrik 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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6130179&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0063345(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Wirth Maschinen und Bohrgeraete Fabrik GmbH filed Critical Wirth Maschinen und Bohrgeraete Fabrik GmbH
Priority to AT82103085T priority Critical patent/ATE20118T1/de
Publication of EP0063345A2 publication Critical patent/EP0063345A2/fr
Publication of EP0063345A3 publication Critical patent/EP0063345A3/de
Application granted granted Critical
Publication of EP0063345B1 publication Critical patent/EP0063345B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E21D9/1086—Drives or transmissions specially adapted therefor

Definitions

  • the invention relates to an electrical working device for the drill head or a similar part of a boring machine for tunnels, lines or the like which carries out a rotating working movement, in particular a tunnel boring machine, the speed of the electrical drill head drive (one motor or in particular several mechanically for Parallel operation of coupled electric motors) is continuously adjustable.
  • Infinitely variable drives for tunnel boring machines or the like are desired or required in order to u. a. to enable an optimal adaptation to the mountain characteristics as well as a gentle, low-vibration drilling operation.
  • this requirement could practically only be met by a hydrostatic drive.
  • Infinitely variable hydrostatic drives require a lot of space for the drive units and have a low overall efficiency. Pole-changing three-phase motors are robust, but only allow a few speeds to be set in stages, so that continuous control is not possible.
  • a propulsion device in which direct current motors, in particular direct current shunt motors with a speed that can be adjusted by changing the excitation voltage, are provided as the drive for a rotating extraction or clearing tool, the change in excitation voltage being caused by a can be connected to a three-phase converter.
  • Static inverters for operating induction machines are known from the article 'ce converter with a DC link for industrial drives in BBC News 1978, No. 11, pp. 485 to 495. In such and similar facilities, their parts are housed in upright and special space for their installation cabinets. It is in the known applications of such converters consistently to stationary operating equipment or industrial drives, such as. B. for mills, mixers, assembly lines, pumps, machine tools, etc. It has so far not seemed possible to use converters directly under portable external units even under difficult external conditions. This applies in particular to tunnel boring machines or the like, which work for themselves in narrow cross-sections of the route that they have driven themselves, thus far from rooms in which supply facilities of the usual type can be accommodated.
  • the object of the invention is to take into account disadvantages, inadequacies and difficulties, such as exist in known steplessly adjustable drives for tunnel boring machines or the like, so in hydrostatic drives or drives with direct current motors, and to create an electric rotary drive for tunneling machines that can can be accommodated well under the limited space and is characterized by favorable operating characteristics.
  • the invention also strives for an advantageous design of such a drive in detail. Further problems associated with the overall task, with which the invention is concerned, result from the respective explanation of the solution shown.
  • the converter that in particular sprits protected against water and dust is a so-called intermediate circuit converter with impressed current. This is a mature and reliable technology. In such a converter, a DC voltage is converted into an AC voltage of the desired frequency and level.
  • the heat exchanger enables effective cooling to be achieved despite the complete encapsulation of one or the other unit.
  • air that is circulated within the unit is cooled by the colder water.
  • the water can flow in a closed circuit and be cooled in the process. If water is available at the place of use, it can also be sucked in and drained again after passing through the heat exchanger.
  • the drill head drive or the motors of the same can be provided with direct-acting water cooling if self-cooling at low speeds is not sufficient.
  • the switchability of the drill head drive from converter operation to direct mains operation and vice versa a malfunction, e.g. B. in control electronics or converter components, the operation of the machine can be maintained in that the motors are supplied directly from the network.
  • the motors of the drill head drive are designed as pole-changing three-phase squirrel-cage motors, as provided in particular by the invention, then it is even possible to work with different speeds, which increases the availability of the system.
  • the drill head drive has several motors, as is expedient, these motors working in parallel are preferably supplied by a common converter in busbar supply.
  • the motors can be mechanically coupled to one another in the usual way. This results in a problem-free load distribution between the drives.
  • the tunnel boring machine 1 shown in FIG. 1 has a machine body 2, also called an inner kelly, at the front end of which a drill head 3 equipped with cutting rollers 4 or the like is rotatably mounted.
  • a machine body 2 also called an inner kelly
  • This is operated by four three-phase asynchronous motors 5 working in parallel, in particular pole-changing motors, via a mechanical gear 6 and a shaft extending from it and running inside the machine internal body 2, which is indicated in FIG. 2 by the number 7 , driven.
  • the motors 5 are equipped with direct-acting water cooling.
  • the cooling circuits are indicated schematically at number 25.
  • the tunnel boring machine 1 also contains a bracing device 8, also called an outer cell, which has two groups of four clamping slides 9 which can be pressed against the wall of the opened tunnel.
  • a bracing device 8 also called an outer cell, which has two groups of four clamping slides 9 which can be pressed against the wall of the opened tunnel.
  • other parts of the tunnel boring machine which are not explained in more detail here, can also be designed in the usual way.
  • Coupled trailer 11 has a control station 12 and to this subsequently the parts and units shown in FIG. 2 for feeding the drive motors 5, as will be explained below.
  • a high-voltage supply or medium-voltage supply is useful, for. B. with 6 kV, 50 Hz.
  • This energy can be supplied from a station, not shown, via a cable that can be wound on a drum to a supply transformer, which is expediently designed as a three-phase dry transformer and z.
  • B. is designed for a type of 500 kVA, the low voltage, which is encapsulated via a supply cable 13, for. B. in protection class IP 54 or IP 65 three-phase control cabinet 14 is supplied, for. B. 500 V or 380 V.
  • a circuit breaker 15 is provided in the entrance of the control cabinet 14 for the entire subsequent part of the system.
  • a cable 16 leads to a control cabinet 17, which is also adapted in shape and degree of protection to the room and environmental conditions of tunnel construction, in particular is splash-proof and dustproof (e.g. IP 65), and the contains a converter and electronic control devices for supplying and controlling the drive motors 5.
  • the control cabinet 17 is equipped with a heat exchanger in the form of a water / air cooler 18.
  • the water is constantly cooled or taken from the environment as cold fresh water and in turn cools the air as it flows through a coil system 19, which air is circulated inside the control cabinet 17 by a fan or the like.
  • An intermediate circuit choke 20 provided for the conversion operation is set up as a separate unit in front of the control cabinet 17 and connected to it by a cable. It is advantageously designed as a cast resin throttle. Their heat is dissipated by convection.
  • the mode of operation of the converter for infinitely variable speed adjustment of the three-phase motors is based on the principle of converting a direct voltage into an alternating voltage of the desired frequency and height.
  • the DC voltage is in turn generated in the converter of the cabinet 17 from the AC voltage supplied by the control cabinet 14.
  • the converter works as a DC link converter with impressed current.
  • a switch panel 21 is provided in the control cabinet 17, from which cables 22 lead to the drive motors 5, which are supplied according to the principle of the busbar supply.
  • a cable 23 is also inserted into the control panel 21, which is led directly from a second output of the three-phase control cabinet 14.
  • the devices provided in the control panel 21 are designed so that the drive motors 5 can be fed either by the converter in the control cabinet 17 or directly from the three-phase network from the control cabinet 14 by a switching process.
  • the four drive motors 5 can be run up smoothly together with the command "start” to a speed set on a setpoint adjuster (not shown). At this setpoint, the drive speed is continuously from z. B. 1500 rpm to 150 rpm adjustable.
  • the maximum torque of the drill head 3 is limited by a current limitation in the converter. When this torque is reached, an acoustic and / or optical signal can be given by a device that is not reproduced. After this torque has been exceeded, the drive can be stopped automatically. After canceling the feed of the machine and acknowledging the signal, the drill head can be started again:
  • the second possible mode of operation of the device results when the changeover switches provided in the control panel 21 are switched to "mains operation".
  • the motors 5 are then supplied directly from the three-phase part in the control cabinet 14, in which the contactors required for this network operation are also located.
  • the drive motors 5 can then be switched on one after the other. If the advantageous design involves pole-changing motors, the desired speed can be preselected on a selector switch 24 on the control cabinet 14.
  • the operating torque is displayed on an instrument.
  • This switchover option can in principle be useful and is particularly advantageous if a fault occurs in the converter part 17.
  • the operator of the machine is then immediately able to switch the supply of the drive motors 5 to mains operation by actuating the changeover switch in the control panel 21. No electrical intervention is required. The machine is immediately ready for use again.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Earth Drilling (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Soil Working Implements (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Control Of Multiple Motors (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Claims (3)

1. Dispositif d'entraînement électrique pour la tête de creusement ou une partie analogue, exécutant un mouvement de travail rotatif, d'une machine de creusement pour tunnels, galeries ou analogues, notamment d'une machine de creusement pour tunnels, la vitesse de rotation du dispositif d'entraînement électrique de la tête de creusement (un moteur ou plus particulièrement plusieurs moteurs électriques accouplés mécaniquement pour un fonctionnement en parallèle) étant réglable en continu et le dispositif étant caractérisé par les particularités suivantes :
le dispositif d'entraînement de la tête de creusement comprend au moins un moteur asynchrone triphasé (5),
pour l'alimentation du moteur (5), il est prévu, associé à la machine de creusement (1), un convertisseur à dispositif de réglage, au moyen duquel le dispositif d'entraînement de la tête de creusement doit être alimenté en courant à fréquence variable,
le convertisseur est réalisé avec une protection de type élevé, correspondant aux conditions d'utilisation,
une bobine de réactance à circuit intermédiaire (20), prévue pour le fonctionnement sur convertisseur est disposée à part, dans une enceinte qui lui est réservée séparément d'une armoire (17) contenant le convertisseur,
pour l'évacuation de la chaleur d'au moins une partie du dispositif, il est prévu un échangeur thermique (18) réalisé sous forme de réfrigérant eau/air,
il est prévu un dispositif de commutation (21) au moyen duquel le dispositif d'entraînement de la tête de creusement (5) est commutable du fonctionnement sur convertisseur à un fonctionnement direct sur réseau et inversement.
2. Dispositif d'entraînement selon la revendication 1, caractérisé par le fait que le dispositif d'entraînement de la tête de creusement (5) est muni d'un refroidissement par eau à action directe (25).
3. Dispositif d'entraînement selon l'une des revendications 1 et 2, caractérisé par le fait que le(s) moteur(s) (5) entraînant la tête de creusement sont des moteurs triphasés à induit en court-circuit et à nombre de pôles variable.
EP82103085A 1981-04-15 1982-04-10 Mécanisme d'entraînement en rotation pour machines de creusement Expired EP0063345B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82103085T ATE20118T1 (de) 1981-04-15 1982-04-10 Drehantrieb fuer vortriebsmaschinen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3115175 1981-04-15
DE3115175A DE3115175C2 (de) 1981-04-15 1981-04-15 Drehantrieb für Vortriebsmaschinen

Publications (3)

Publication Number Publication Date
EP0063345A2 EP0063345A2 (fr) 1982-10-27
EP0063345A3 EP0063345A3 (en) 1984-03-28
EP0063345B1 true EP0063345B1 (fr) 1986-05-28

Family

ID=6130179

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82103085A Expired EP0063345B1 (fr) 1981-04-15 1982-04-10 Mécanisme d'entraînement en rotation pour machines de creusement

Country Status (6)

Country Link
EP (1) EP0063345B1 (fr)
JP (1) JPS57178098A (fr)
AT (1) ATE20118T1 (fr)
AU (1) AU543810B2 (fr)
DE (2) DE3115175C2 (fr)
ZA (1) ZA822527B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10058322A1 (de) * 2000-11-24 2002-06-06 Wirth Co Kg Masch Bohr Antriebssystem für den Bohrkopf einer Tunnelbohrmaschine
WO2007040534A1 (fr) 2005-10-03 2007-04-12 Oilfield-Electric-Marine, Inc. Systeme de forage a transmission superieure et autres applications utilisant un moteur a courant alternatif a transmission directe et a rotation lente
CN109577976B (zh) * 2019-01-24 2023-05-19 滕州市金达煤炭有限责任公司 一种新型煤矿采掘设备
CN113090270A (zh) * 2021-03-31 2021-07-09 中铁工程装备集团有限公司 自散热水箱及沉井掘进机水冷散热系统
CN113323672A (zh) * 2021-06-30 2021-08-31 中铁十局集团有限公司 硬岩大跨度隧道大型机械化钻爆开挖快速施工方法
CN116081539A (zh) * 2023-01-10 2023-05-09 中铁工程装备集团有限公司 一种隧道施工转换装备及隧道施工转换方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1233356B (de) * 1965-08-02 1967-02-02 Eickhoff Maschinenfabrik Geb Elektrisch angetriebene Schraemmaschine
DE1534650A1 (de) * 1966-03-31 1969-02-20 Habegger Maschf Verfahren und Vorrichtung zur Regelung der Fraestrommelrotation und des Laengsvorschubs fuer Maschinen zum Vortrieb unterirdischer Strecken
DE2347862C3 (de) * 1973-09-22 1979-10-18 Gebr. Eickhoff, Maschinenfabrik U. Eisengiesserei Mbh, 4630 Bochum Kühleinrichtung für Gewinnungsmaschinen des Untertagebergbaus
DE2426815C3 (de) * 1974-06-04 1979-05-17 Gebr. Eickhoff, Maschinenfabrik U. Eisengiesserei Mbh, 4630 Bochum Verfahren und Vorrichtung zum Regeln der stufenlos verstellbaren Schnitt- und Vorschubgeschwindigkeit von Walzenschrämmaschinen des Untertagebergbaues
AT344645B (de) * 1976-05-25 1978-08-10 Voest Ag Schraemmaschine
DE2746072A1 (de) * 1977-10-13 1979-04-26 Gewerk Eisenhuette Westfalia Vortriebseinrichtung mit einem rotierenden gewinnungs- bzw. abraeumwerkzeug

Also Published As

Publication number Publication date
ZA822527B (en) 1983-02-23
EP0063345A3 (en) 1984-03-28
ATE20118T1 (de) 1986-06-15
AU543810B2 (en) 1985-05-02
DE3115175C2 (de) 1983-01-05
EP0063345A2 (fr) 1982-10-27
DE3115175A1 (de) 1982-10-28
JPS57178098A (en) 1982-11-02
AU8257882A (en) 1982-10-21
DE3271330D1 (en) 1986-07-03

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