EP0317824A2 - Machine et méthode pour l'abattage et le transport de roche - Google Patents

Machine et méthode pour l'abattage et le transport de roche Download PDF

Info

Publication number
EP0317824A2
EP0317824A2 EP88118626A EP88118626A EP0317824A2 EP 0317824 A2 EP0317824 A2 EP 0317824A2 EP 88118626 A EP88118626 A EP 88118626A EP 88118626 A EP88118626 A EP 88118626A EP 0317824 A2 EP0317824 A2 EP 0317824A2
Authority
EP
European Patent Office
Prior art keywords
machine
cutting
loader
machine according
boom
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
EP88118626A
Other languages
German (de)
English (en)
Other versions
EP0317824A3 (en
EP0317824B1 (fr
Inventor
Heinrich-Rudolf Dipl.-Bering. Hausherr
Reinold Ing. Rausch
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.)
Rudolf Hausherr & Sohne & Co KG GmbH
Rudolf Hausherr and Sohne GmbH and Co KG
Original Assignee
Rudolf Hausherr & Sohne & Co KG GmbH
Rudolf Hausherr and Sohne GmbH and Co KG
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 Rudolf Hausherr & Sohne & Co KG GmbH, Rudolf Hausherr and Sohne GmbH and Co KG filed Critical Rudolf Hausherr & Sohne & Co KG GmbH
Publication of EP0317824A2 publication Critical patent/EP0317824A2/fr
Publication of EP0317824A3 publication Critical patent/EP0317824A3/de
Application granted granted Critical
Publication of EP0317824B1 publication Critical patent/EP0317824B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
    • E02F3/78—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices with rotating digging elements
    • E02F3/783—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices with rotating digging elements having a horizontal axis of rotation
    • 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
    • E21D9/01—Methods or apparatus for enlarging or restoring the cross-section of tunnels, e.g. by restoring the floor to its original level
    • 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
    • E21D9/1006—Making by using boring or cutting machines with rotary cutting tools

Definitions

  • the invention relates to a machine for the continuous loosening of rock or the like. and removal of the loosened, shredded pile in mining, earthworks and tunnels, preferably in underground operations, which has a crawler track, on the front of which one or two cutting rollers with an attached auger is or are provided on a lifting and lowering boom, which or to which a conveyor device integrated into the machine is assigned.
  • the spatial conditions in the accompanying mining sections and in particular in coal removal sections allow continuous lowering and loading work only if the lowering machine can process all areas of the track bottom, i.e. the section joints and the area under the suspended belt lines, equally well. It is desirable to find a flat and cleanly loaded sole after passing through the lowering system.
  • the object of the invention is to create a machine of the type mentioned at the outset, avoiding the aforementioned disadvantages, on the basis of whose configuration it is possible to use only one machine in one removal path to achieve the required lowering to perform work.
  • the individual units of the machine can be remotely controlled
  • the cutting roller or the cutting rollers with associated drive unit or drive units are or are designed as independently movable units which are reversible in their direction of rotation and releasably connected to the boom
  • the length of the crawler track is dimensioned such that it is rotatable in a section of an underground operation.
  • the cutting roller or the cutting rollers are detachably connected to the boom of the machine as structural units and can be moved independently after being released, the direction of rotation of which can be reversed.
  • the machine shortened to the length of its crawler track by dismantling these components can then be rotated by 180 degrees, whereupon the cutting roller or the cutting rollers and the crawler track can move past one another in order to reinsert the roller or rollers into the boom so that a lowering in reverse direction can take place.
  • the machine can thus change its working direction, alternatively in the direction Buttress / route crossing and then working away from the buttress / route crossing.
  • the lowering work can be carried out optimally with only one machine according to the invention instead of several other lowering machines, depending on the striving speed (mining progress), the convergence speed and other operational and geological criteria, because, due to the design according to the invention, the lowering under the belt, besides the belt and, depending on the operating conditions, lowering forward in the direction of the face / line crossing and backwards away from the face / line crossing is possible by quickly changing the working direction of the machine.
  • the execution in very specific units fulfills the requirement to change the working direction in a particularly narrow space, as can be found in coal discharge routes, with less route width than machine length by disassembling the machine into several, self-moving components / assemblies. Due to the possibility of quickly changing the working direction and thus achieving a high lowering capacity, the usual use of several lowering machines for this purpose is superfluous.
  • a loader for further transport of the dissolved material is advantageously arranged downstream of the machine in such a way that it is together form a machine system, and the loader takes over the material given off by the machine in front and transfers the material to the hanging belt or the chain conveyor located in the route both when lowering next to the belt line and below.
  • the loader is designed for longitudinal movement, lifting and swiveling as well as rotating and depositing, so that it is possible to work in a confined space.
  • the invention further relates to a method by means of which it is possible to lower the distance at a much higher working speed than known before reaching comparatively large convergence phenomena, so that the height of the countersink can be greatly reduced.
  • this object is achieved with the aid of the machine system with loader described above in that the full convergence height of up to more than 1 meter in thickness is lowered over a length corresponding to the progress of the strut, and then the machine system is turned in the route and the lowering from the face / route transition is carried out with a countersink height of a few decimeters back to the area in which a creep convergence of 1 - 2 cm per day can be determined, then the machine system is turned again and The route is again lowered at a lowering height of a few decimeters into the area of the penultimate turning point, and from there the full lowering shock is tackled, which has arisen due to the progress of the strut, while the machine system is on its way and return trip through the route.
  • the crawler track 2 is provided on its front with a lifting and lowering boom 3. This can be pivoted on the crawler chassis 2 via the axes 4. The pivoting movement takes place by means of the cylinder-piston units 5, which can be acted upon by pressure medium.
  • two cutting rollers 6 are rotatably mounted on the boom 3.
  • the cutting rollers 6 are known per se and are equipped with cutting tools 7 on their surrounding surfaces.
  • screw conveyors 8 are applied to the circumferential surfaces of the cutting rollers 6 in a manner known per se in such a way that, in the exemplary embodiment shown, they convey the loosened pile to the center of the machine 1.
  • the cutting rollers 6 is a conveyor Direction 9 assigned, which is integrated in the center of the crawler chassis 2 and penetrates this over its entire length.
  • the machine 1 has no control station, so that its overall height is very low. All units of the machine 1 are controlled by means of a remote control, which is known per se and is therefore not shown and described in detail.
  • the cutting rollers 6 are or the like by a bolt connection. releasably connected to the boom 3.
  • the cutting rollers 6 can be controlled independently of one another in terms of their speeds and / or directions of rotation.
  • the drive units, ie the motors and gears, are arranged in the cutting rollers 6 in the exemplary embodiment shown.
  • the boom 3 has support arms 10 of different lengths for the cutting rollers 6.
  • the support arms 10 are equipped with an offset such that the axes of rotation 11 of the cutting rollers 6 run at an angle to one another.
  • One cutting roller 6 is on its end facing the other cutting roller 6 with a Provide recess 12 into which the other cutting roller 6 extends.
  • This angular arrangement of the two cutting rollers 6 to each other results in a toothing thereof, so that when loosening rock or the like. no gusset remains between the rollers 6, but their cutting tools 7 result in a track 13 up to which there is complete processing of the rock from both sides.
  • the two cutting rollers 6 are arranged on the front side of the machine 1, a breaking edge 14, which, in cooperation with the cutting rollers 6, crushes the loosened rock or the like. causes so that it reaches the conveying device 9 in the eligible state of appropriate grain size.
  • the length of the crawler chassis 2 is dimensioned such that it can be rotated about its axis in a section of an underground operation. If the space is sufficient in height, the cutting rollers 6 can be swiveled up by means of the boom 3 and the crawler chassis 2 can then be rotated about its axis, whereupon the boom 3 is lowered again with the cutting rollers 6 so that the latter can work in the opposite direction. If the space in height is not sufficient to perform this turning, the cutting rollers 6 are with associated drive units released from the boom 3 in the lowered state. Now the crawler tracks 2 and the cutting rollers 3 with their drive units can be moved past each other.
  • the machine 1 With the boom 3 raised, if necessary, the machine 1 is then rotated through 180 degrees and likewise the cutting rollers 6 by rotating the same in opposite directions, whereupon the cutting rollers 6 are retracted into the now lowered boom 3 and the like by means of a bolt connection. can be rotatably connected with this again.
  • This turning in a confined space is made possible by the independently movable cutting rollers 6 with associated drive units, which form self-contained structural units.
  • the machine 1 is equipped with a cutting roller 6, the drive units 15 of which are arranged outside the latter and are held by the support arms 10 of the boom 3.
  • the connection of the drive units 15, that is to say of the engine and transmission with the support arms 10, is made via easily detachable bolt connections or the like.
  • the drive units 15 are in drive connection with the one deflection wheels of endlessly rotating cutting chains 16, the other deflection wheels of which are coupled to the axis 17 of the cutting roller 6.
  • the endlessly rotating cutting chains 16 are in their speed len and / or directions of rotation independently controllable. For this purpose, a remotely controllable coupling is provided between one of the cutting chains and the cutting roller 6.
  • the cutting chains 16 cause the cutting roller 6 to be cut free laterally.
  • the boom 3 can be arranged in this embodiment as well as that according to Figures 1-3 in a guide link 18 of the crawler chassis 2 in the longitudinal direction of the same, in order to further shorten the overall length for the turning process of the machine 1.
  • cylinder-piston units 19 which can be pressurized are provided.
  • the conveying device 9 is also mounted centrally in the crawler chassis 2 in the longitudinal direction thereof.
  • the conveyor 9 is equipped at its end remote from the boom 3 with a transfer 20.
  • the transfer 20 has a tube conveyor 21 that can be raised and lowered and pivoted, freely projecting. This consists of a tube 22 in which a screw conveyor 23 is located. If there is not enough space in the route width, the machine 1 can be rotated in the route without a cutting roller 6 and also without a conveyor 9, which can be easily removed.
  • FIGS. 6 and 7 show a loader 24 which is added to the loosening and removal machine 1 according to FIGS. 1-5 and is assigned to it in such a way that it forms a machine system.
  • the machine 1 and the loader 24 are connected to one another in terms of control.
  • the components used to supply energy to the units of the machine for example motor-driven generators and / or pumps, are advantageously arranged on the loader 24 and connected to the corresponding units of the machine 1 via power lines.
  • the loader 1 also has a crawler track 25, at one end of which there is a storage hopper 26, to which a tube conveyor 27 is assigned.
  • the storage hopper 26 can be displaced in the longitudinal direction of the loader 24 by means of a cylinder-piston unit 28, so that the latter can be set at a specific distance from the crawler chassis 25 of the loader 24, the purpose of which is described in detail below.
  • the tube conveyor 27 consists of the outer tube 29 in which the screw conveyor 30 is located. As indicated by the arrows 31, the tube conveyor 27 is pivotable about the axis 32.
  • the tube conveyor 27 is equipped at its end facing away from the storage hopper 26 with a rotatably mounted chute 35.
  • the tube conveyor 27 can be deposited on one and the other longitudinal side of the loader 24, preferably in a trough 36, as can be seen in FIG. 6. In this position, the chute 35 is pivoted inward so that it is in the area of the crawler track 25.
  • the storage hopper 26 is rotatably arranged in its carrying device 37, as is also indicated by the arrow 38.
  • the rotary movement of the storage funnel 26 takes place in its advanced position, as can be adjusted by the cylinder-piston unit 28.
  • the tubular conveyor 27 is carried along by the rotary movement of the storage hopper 26, so that it is located either on one or the other long side of the crawler track 25.
  • the speed of the screw conveyor 30 of the tube conveyor 27 is variable.
  • the tube conveyor serves as a drainage aid for the conveyed goods on a conveyor belt or a chain conveyor, the transfer being carried out by the rotatable and angled chute 35.
  • This configuration of the tube conveyor 27 provides extensive mobility, so that different positions can be realized and a continuous task of the loosened pile is possible during the lowering process. Even when the belt straps are suspended, it is not necessary to swing them out in the area of the hanging chains, since when such a chain is reached, the pivotable chute 35 is rotated about the axis of the tube conveyor 27 until it has almost written a full circle and on the other side of the chain the goods can give up further. Only for this turning of the chute 35, the screw conveyor 30 in the pipe 29 must be stopped.
  • the machine system according to the invention is shown within a section 39 in FIG.
  • the bulk material released from the machine 1 (not shown) is fed into the chute 35 via the tube conveyor 27 and from there reaches the belt conveyor 40 which is laid in the route 39 and which conveys it away. Below the belt conveyor is a countersink 41, which at next pass of the machine is loosened and transported away.
  • FIGS. 11 and 12 show the machine system according to the invention in a plan view in operation in one section.
  • the machine system 1, 24 is located in a distance 39 next to the belt conveyor 40, while in FIG. 12 the machine system 1, 24 is shown below the belt conveyor 40.
  • the full convergence height of in some cases more than 1 m thick is lowered over a length corresponding to the progress of the strut, for example 3 days, and the entire route width; Then the machine system 1, 24 is turned in the route and the lowering takes place from the face / route transition with a countersink height of a few decimeters, which slowly rises over a length of, for example, several 100 m to the area in which only a creep convergence of 1 - 2 cm per day can be determined; after the machine system 1, 24 has been turned again in this area, the system is again lowered the route at a lowering height of a few decimeters to the penultimate turning point, from there to tackle the full lowering shock again, which has been added due to the progress of the strut, while the machine system 1, 24 on the return trip through the route was underway.
  • the chronological sequence preferably looks approximately such that the lowering work in the upright lowering joint is to be fully reduced by two daily mining steps in accordance with the progress of the strut, namely during one working day; during the second working day the distance is lowered away from the face / distance transition, and during a third working day the distance is lowered again towards the face / distance transition, the turning of the machine system 1, 24 at both turning points during a night shift within a few Hours.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
EP88118626A 1987-11-24 1988-11-09 Machine et méthode pour l'abattage et le transport de roche Expired - Lifetime EP0317824B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873739680 DE3739680A1 (de) 1987-11-24 1987-11-24 Maschine und verfahren zum kontinuierlichen loesen von gestein od. dgl. und abfoerdern des geloesten, zerkleinerten haufwerks im berg-, erd- und tunnelbau
DE3739680 1987-11-24

Publications (3)

Publication Number Publication Date
EP0317824A2 true EP0317824A2 (fr) 1989-05-31
EP0317824A3 EP0317824A3 (en) 1989-08-02
EP0317824B1 EP0317824B1 (fr) 1991-07-31

Family

ID=6341077

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88118626A Expired - Lifetime EP0317824B1 (fr) 1987-11-24 1988-11-09 Machine et méthode pour l'abattage et le transport de roche

Country Status (7)

Country Link
EP (1) EP0317824B1 (fr)
CS (1) CS769988A2 (fr)
DE (2) DE3739680A1 (fr)
ES (1) ES2025757T3 (fr)
HU (1) HUT57376A (fr)
PL (1) PL275970A1 (fr)
SU (1) SU1782281A3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2251878A (en) * 1991-01-18 1992-07-22 Tamrock World Corp Drum assembly for a continuous miner
WO2000043638A1 (fr) * 1999-01-19 2000-07-27 Rag Aktiengesellschaft Machine de foncage a rouleaux pivotants verticaux
CN102071936A (zh) * 2010-12-24 2011-05-25 陕西陕煤韩城矿业有限公司 薄煤层滚筒采煤机的滚筒内旋割煤方法
CN114803380A (zh) * 2022-06-24 2022-07-29 江苏英拓动力科技有限公司 一种用于复杂环境的无人履带车运载输送平台

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010054594A1 (de) * 2010-12-15 2012-06-21 Marco Systemanalyse Und Entwicklung Gmbh Walzenschrämlader
DE102015121312A1 (de) * 2015-12-08 2017-06-08 Herrenknecht Ag Vorrichtung und Verfahren zum Vortreiben eines Hohlraums im Untertagebau

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2742078A1 (de) * 1977-09-19 1979-03-29 Ruhrkohle Ag Streckensenkvorrichtung
FR2452588A1 (fr) * 1979-03-24 1980-10-24 Gewerk Eisenhuette Westfalia Machine de creusement pour travaux souterrains ou exploitations minieres au fond comportant un cylindre de coupe et un convoyeur
DE3049599A1 (de) * 1980-12-31 1982-07-29 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Fraeslader, insbesondere senkfraeslader
DE3120393A1 (de) * 1981-05-22 1982-12-16 Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck "strecken-solen-fraeseinrichtung vorzugsweise fuer den untertaegigen bergbau"
DE3434936A1 (de) * 1984-09-22 1986-04-03 Drespa, Grischa, 4600 Dortmund Senklader mit drehendem loesewerkzeug
GB2180281A (en) * 1985-09-11 1987-03-25 Paurat F Extraction machine for minerals

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2656703C2 (de) * 1976-12-15 1985-05-02 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Abbaumaschine
DE2710960C2 (de) * 1977-03-12 1981-07-02 Friedrich Wilhelm 4223 Voerde Paurat Strecken- bzw. Tunnelvortriebsmaschine
US4305620A (en) * 1980-02-20 1981-12-15 Hart Gwyn G Pneumatic separating system for continuous mining machine
US4407622A (en) * 1981-05-18 1983-10-04 Okumura Corporation Soil transporting vehicle for transporting soils excavated by shield machine
DE3203924C2 (de) * 1982-02-05 1985-08-01 Bergwerksverband Gmbh, 4300 Essen Steuereinrichtung für eine Vortriebs- oder Gewinnungsmaschine
AU2877784A (en) * 1983-05-31 1984-12-06 Joy Manufacturing Co. Pty. Ltd. Continuous mining machine
DE3442411C2 (de) * 1984-11-20 1986-12-11 Bade & Theelen GmbH, 3003 Ronnenberg Werkzeugkopf für eine Fräs-, Schräm-, Bohrvorrichtung oder dergleichen zum Auffahren einer Tunnelröhre
DE3518691C1 (de) * 1985-05-24 1986-10-16 Friedrich Wilhelm Paurat Gewinnungsmaschine fuer mineralische Rohstoffe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2742078A1 (de) * 1977-09-19 1979-03-29 Ruhrkohle Ag Streckensenkvorrichtung
FR2452588A1 (fr) * 1979-03-24 1980-10-24 Gewerk Eisenhuette Westfalia Machine de creusement pour travaux souterrains ou exploitations minieres au fond comportant un cylindre de coupe et un convoyeur
DE3049599A1 (de) * 1980-12-31 1982-07-29 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Fraeslader, insbesondere senkfraeslader
DE3120393A1 (de) * 1981-05-22 1982-12-16 Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck "strecken-solen-fraeseinrichtung vorzugsweise fuer den untertaegigen bergbau"
DE3434936A1 (de) * 1984-09-22 1986-04-03 Drespa, Grischa, 4600 Dortmund Senklader mit drehendem loesewerkzeug
GB2180281A (en) * 1985-09-11 1987-03-25 Paurat F Extraction machine for minerals

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2251878A (en) * 1991-01-18 1992-07-22 Tamrock World Corp Drum assembly for a continuous miner
AU655224B2 (en) * 1991-01-18 1994-12-08 Eimco Llc Drum assembly for a continuous miner
GB2251878B (en) * 1991-01-18 1995-05-17 Tamrock World Corp Drum assembly for a continuous miner
WO2000043638A1 (fr) * 1999-01-19 2000-07-27 Rag Aktiengesellschaft Machine de foncage a rouleaux pivotants verticaux
CN102071936A (zh) * 2010-12-24 2011-05-25 陕西陕煤韩城矿业有限公司 薄煤层滚筒采煤机的滚筒内旋割煤方法
CN114803380A (zh) * 2022-06-24 2022-07-29 江苏英拓动力科技有限公司 一种用于复杂环境的无人履带车运载输送平台

Also Published As

Publication number Publication date
EP0317824A3 (en) 1989-08-02
HUT57376A (en) 1991-11-28
CS769988A2 (en) 1991-07-16
SU1782281A3 (en) 1992-12-15
ES2025757T3 (es) 1992-04-01
DE3739680A1 (de) 1989-06-15
DE3864015D1 (de) 1991-09-05
EP0317824B1 (fr) 1991-07-31
PL275970A1 (en) 1989-09-04

Similar Documents

Publication Publication Date Title
WO2010112019A1 (fr) Concasseur mobile
DE19941799A1 (de) Tagebaugewinnungsgerät
DE3621420C1 (de) Tagebau-Fraesgeraet
DE3920011C3 (de) Stetig arbeitendes Gewinnungsgerät für Tagebaue mit einem walzenförmigen Gewinnungsorgan
DD143167A5 (de) Selbstfahrbare gleisbett-reinigungsmaschine mit speichervorrichtung
DE2504694B2 (de) Selbstfahrendes aufnahmegeraet zum aufnehmen von auf dem meeresboden liegenden mineralen
EP0317824B1 (fr) Machine et méthode pour l'abattage et le transport de roche
DE1283862B (de) Vortriebsschild
DE19505042C2 (de) Tagebau-Gewinnungsgerät
DE2731424A1 (de) Walzenbrecher
DE2160643A1 (de) Abbaumaschine
DE1260412B (de) Streckenvortriebsmaschine
DE3627270A1 (de) Vortriebsschild, insbesondere fuer den vortrieb mit erddruckgestuetzter ortsbrust, mit einem schneckenfoerderer fuer die bodenfoerderung
DE3501509C2 (de) Fördereinrichtung mit Aufgabeeinrichtung und Durchgangsbrecher für Streckenvortriebe des Untertagebetriebes
DE3434936C2 (fr)
DE3009923A1 (de) Verfahren und einrichtung zum abbau der pfeiler beim kammer-pfeilerbau
DE2840280B2 (de) Einrichtung zum trockenen Auffahren von Tunneln im Rohrvorpreßverfahren
DE2920419C2 (de) Vorrichtung zum Auffahren des Maschinenstalls
DE1921092C3 (de) Gewinnungs- und Ladeeinrichtung für den Rohrpreßvortrieb
DE102004003065A1 (de) Transportverfahren für ein gleichmäßig transportfreundliches Haufwerk und Anlage
DE1929868A1 (de) Entspeicherungskratzer
DE19732946B4 (de) Gewinnungseinrichtung für den Untertagebergbau, insbesondere für die Kohlegewinnung in Strebbetrieben
DE2519825C3 (de) Vortriebsmaschine für den Tunnelvortrieb u.dgl
DE3205741A1 (de) Einrichtung zum entspeichern von schuettgut aus einem schuettgutlager
DE2355139A1 (de) Umschlaganlage fuer abbaumaterial in der naturstein- und bergbauindustrie

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE ES FR GB

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE ES FR GB

17P Request for examination filed

Effective date: 19890814

17Q First examination report despatched

Effective date: 19901018

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB

REF Corresponds to:

Ref document number: 3864015

Country of ref document: DE

Date of ref document: 19910905

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19911106

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19911122

Year of fee payment: 4

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19920122

Year of fee payment: 4

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2025757

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19921109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19921110

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19921109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19930730

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19930803

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19931214