EP2831375A2 - Mining plow - Google Patents
Mining plowInfo
- Publication number
- EP2831375A2 EP2831375A2 EP13710305.7A EP13710305A EP2831375A2 EP 2831375 A2 EP2831375 A2 EP 2831375A2 EP 13710305 A EP13710305 A EP 13710305A EP 2831375 A2 EP2831375 A2 EP 2831375A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cutting bit
- plow
- attachment member
- mining
- ancillary
- 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
Links
- 238000005065 mining Methods 0.000 title claims abstract description 74
- 238000000605 extraction Methods 0.000 claims abstract description 42
- 238000009434 installation Methods 0.000 claims abstract description 13
- 239000000969 carrier Substances 0.000 claims abstract description 11
- 239000003245 coal Substances 0.000 claims abstract description 10
- 230000002441 reversible effect Effects 0.000 claims description 5
- 230000001419 dependent effect Effects 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- -1 for instance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C27/00—Machines which completely free the mineral from the seam
- E21C27/20—Mineral freed by means not involving slitting
- E21C27/32—Mineral freed by means not involving slitting by adjustable or non-adjustable planing means with or without loading arrangements
- E21C27/34—Machine propelled along the working face by cable or chain
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/08—Guiding the machine
Definitions
- the present disclosure relates to a mining plow, in particular a coal mining plow, having a plow base which is guidable on a reversible conveyor.
- Coal mining plows with extraction cutting bits fastened to pivotable cutting bit carriers, which are connected in a direction-independent manner via a connecting rod or a catch that is connected to the plow chain for the mining plow are known, for example, from DE 201 18 259 Ul or DE 196 37 789 Al .
- the height of the mining plow can be adjusted to the actual desired working height, in which the height of the mining plow is increased using attachment members.
- the height increase is achieved using an attachment member, which is supported via a supporting portal on the goaf side on a guide rail provided on the conveyor for this purpose, whereby even with mining plows having an especially high structure, and optionally provided with a plurality of set-on attachment members, a reliable stabilization of the plow can be achieved with effective removal of the forces on the plow guide.
- a mining plow in particular a coal mining plow, may comprise a plow base constructed to be guided on a reversible conveyor and having a pivot pin on an inclined supporting surface for pivotably supporting a cutting bit carrier in each direction of plow travel, two cutting bit carriers pivotably supported on a respective pivot pin, including extraction cutting bits, and being pivotable in a travel-direction- dependent manner, a roof cutting bit carrier attached to the plow base in a height- adjustable manner, and including roof cutting bit columns.
- the roof cutting bit carrier may be removably anchorable at different heights to an attachment surface formed between the inclined supporting surfaces.
- the disclosed mining plow may further comprise an attachment member settable on the plow base and elongating the attachment surface for the roof cutting bit carrier to increase the working height of the mining plow.
- the attachment member may include ancillary cutting bit columns provided with extraction cutting bits and attached to the attachment member. Each ancillary cutting bit column may be respectively positioned in its extraction position for a plow trip above a cutting bit carrier, and an intermediate member may be disposed between the attachment member and each ancillary cutting bit column.
- the intermediate member may be foldable attached to the attachment member and may be folded away into an installation position, in which the corresponding cutting bit carrier may be removable while the attachment member and the intermediate part remain installed.
- Fig. 1 shows a view of the front side of a mining plow according the present teachings, the front side facing towards the mining face during operation.
- Fig. 2 shows a plan view of the mining plow according to Fig. 1 , in which a left-side ancillary cutting bit column is detached and an intermediate part is folded upward.
- Fig. 3 shows a cross-sectional view of the mining plow of Fig. 1 along III-III in Fig. 1.
- Fig. 4 shows a plan view of an attachment member for the mining plow according to the present disclosure.
- Fig. 5 shows a side view of the attachment member of Fig. 4.
- Fig. 6 shows a perspective view of the front side of the attachment member of Fig. 4.
- Fig. 7 shows a perspective plan view of the attachment member of Fig. 4, in which a left-side ancillary cutting bit column is detached and an intermediate part is folded upward.
- Fig. 8 shows a perspective view of the rear side of the attachment member of Fig. 7.
- the present disclosure may be based in part on the realization that providing a mining plow having a plow base wit the lowest possible design may offer a high variability for the mining of different seam thicknesses of the to-be- excavated mineral layer, in particular coal, may be easy to assemble and may have an improved mining behavior even in the face end region as well as the longwall tunnel itself when confined spaces are present due to the work situation or a narrow roadway.
- the extraction cutting bits of the disclosed mining plow may lie on the ancillary cutting bit column above or in extension of the line of the extraction cutting bits of the associated cutting bit carrier, such that by adding the ancillary cutting bit columns, which are disposed substantially farther forward in the direction of travel, may improve mining behavior, in particular in the face end region as well as in the longwall tunnel.
- an upper bank or a concrete pack, with which a tunnel support structure may be optionally backfilled, can be removed in the tunnel.
- a mining plow according to the present disclosure is indicated overall with reference number 1 in Figs. 1 to 3.
- the mining plow 1 can be moved using a plow chain 2 (only shown in part) along plow guides (not shown) during underground mining operations.
- the plow guides are part of a conveyor apparatus, which is laid along the mining face over lengths of generally 200 m to 400 m for extracting minerals such as, for instance, coal, and may be
- a guide shoe 5 and a guide recess 6 on the rear side of a base 4 of the mining plow 1 can be seen, with which the mining plow 1 is guided on guide bars, which are part of the plow guide.
- the plow chain 2 is connected to a pull-sled serving as a catch, which is disposed in a recess on the underside of the plow base 4 and moves the mining plow 1 in the pulling direction of the plow chain 2 along the plow guide, as is known from the prior art.
- the mining plow 1 is provided with a cutting bit carrier 7 for both plow travel directions, which are indicated with F and F', respectively, in Fig. 1.
- the cutting bit carrier 7 is pivotably supported on the plow base 4 about a pivot pin 8 that is visible in Figs. 2 and 3, and rests with its weight on an oblique supporting surface 9 of the plow base 4.
- both cutting bit carriers 7 are provided with a row of extraction cutting bits 11 disposed one above another.
- the extraction cutting bits 1 1 extend over the entire height of the plow base 4 and over the height of the material to be mined by the mining plow 1 with the cutting bit carrier 7, which means the material that lies forward of the mining plow 1 in the direction of travel F or F'.
- the mining plow 1 is further provided in a conventional manner with a roof cutting bit carrier 12 having two roof cutting bit columns 13 equipped with extraction cutting bits 14.
- the roof cutting bit carrier 12 is fastened to the plow base 4 in a height-adjustable manner, and can be displaced along groove guides 15 in the height direction which means vertically, in order to be anchored at different height positions.
- the mining plow 1 is further provided in a known manner with an attachment member 20, with which the height, and thus the extraction height, of the mining plow 1 can be increased.
- An ancillary cutting bit column 21, which is equipped with additional extraction cutting bits 22, is disposed on the attachment member 20 for each direction of travel, in order to additionally excavate minerals or rock on the coal mining face along the height of the attachment member 20.
- Groove guides 26 are disposed in the center of the attachment member 20 on its front surface.
- the groove guides 26 extend the groove guides 15 on the plow base 4, in order to be able to move the roof cutting bit carrier 12 upwards in such a manner that material can be excavated in the roof area by the roof cutting bit carrier 12 also when the attachment member 20 is attached.
- Both the roof cutting bit columns 13 and the ancillary cutting bit columns 21 are pivotable, so that only the roof cutting bit column 13 and ancillary cutting bit column 21 disposed forward in the travel direction F or F' perform extraction work.
- both ancillary cutting bit columns 21 are positioned on the mining plow 1 in such a way that the extraction cutting bits 22 of the ancillary cutting bit columns 21 are located above the respective cutting bit carriers 7 and in an arc-like extension of the extraction cutting bits 11.
- a correspondingly far-forwardmost positioning of the ancillary cutting bit column 21 in the direction of travel is achieved in the mining plow 1 by arranging an intermediate part 30 between the attachment member 20 and each ancillary cutting bit column 21.
- the left-side intermediate part 30 has been folded away into an installation position, whereas the right-side intermediate part 30 is shown in the extraction position (or operational position) for the right-side ancillary cutting bit column 21.
- the installation position neither the intermediate part 30 nor an optional ancillary cutting bit column 21 fastened to the intermediate part 30 is disposed over the underlying cutting bit carrier 7 in such a way that accessibility of the pivot pin 8 would be hindered and/or the cutting bit carrier 7 could not be removed and lifted off of the pivot pin 8.
- the underside of the attachment 20 may be attachment member 20 to the plow base 4.
- the latch pins 23 sit in corresponding latch recesses (not shown) on the plow base 4, and thus fix the attachment member 20 to the plow base 4 in an interference-fit manner and parallel to the direction of travel.
- wedge-jaws 24 are provided and can be moved relative to each other using tumbuckles 25 (see Fig. 6) in such a way that the jaws of the wedge-jaws 24 extend beyond the attachment member 20 and grasp the plow base 4, thereby clamping the attachment member 20 onto the plow base 4.
- the wedge-jaws 24 are disposed on either side of the groove guides 26, which are removably anchored to the attachment member 20, for example, screw-fastened in this embodiment.
- a fork receptacle 29 is disposed on each end of the attachment member 20 and is open towards the front side.
- Spaced-apart bolt receptacles 27 define a gap for receiving a bolt eye 31 of the intermediate part 30.
- the bolt receptacles 27 and the bolt eye 31 are connected using a pivot bolt 45.
- the pivot axis of the pivot bolt 45 extends parallel to the groove guides 26 and connects the bolt receptacles 27 and the bolt eye 31 , and thus the intermediate part 30 and the attachment member 20, to one another.
- the bolt receptacles 27 and the bolt eye 31 are designed to be suitably strong, so that the entire weight of the intermediate part 30 and the connected additional column 21 can be retained in a pivotable manner.
- the intermediate part 30 has a middle part 32 that is integrally connected with the bolt eye 31.
- a strong pressure plate 33 is formed on the rear side of the middle part 32, as can be seen on the left side in Fig. 7.
- a beveled rear end face 34 abuts in an form- fit manner on an abutment surface 28 of the attachment member 20.
- the abutment surface 28 also extends obliquely to the direction of travel, in order to direct all of the forces arising on the ancillary cutting bit columns 21 during the extraction movement to the attachment member 20 via the pressure plate 33.
- the middle part 32 is further provided with pin receptacles 35 opposite the bolt eye 31.
- a supporting body 41 of the ancillary cutting bit column 21 is insertable into the pin receptacles 35, preferably only in a certain relative position between the ancillary cutting bit column 21 and the intermediate part 30.
- the supporting body 41 of the ancillary cutting bit column 21 can or must then be pivoted into a position, relative to the intermediate part 30, in which the supporting body 41 of the ancillary support column 21 is fixedly held between an arm pair 36 on the intermediate part 30.
- the arm pair 36 lies opposite the pin receptacles 35 at a short distance.
- the ancillary support column 21 is
- the ancillary cutting bit column 21 can be installed or uninstalled only in a certain pivot position, however not in the extraction (mining or operational) position, which is shown on the right side of Fig. 7.
- the pivot pin connection between the ancillary cutting bit column 21 and the intermediate part 30 can be effected using pin stumps which are integrally formed on the supporting body 41 of the ancillary cutting bit column 21.
- the intermediate part 30 is further provided with a supporting projection 37 directly adjacent to the bolt eye 31.
- the supporting projection 37 is cantilevered laterally beyond the bolt eye 31.
- the supporting projection 37 In the extraction (mining or operation) position the supporting projection 37 abuts on an abutment surface located in a step-shaped recess 42 defined on the rear side of the attachment member 20.
- Receiving bores 38 and 43 are respectively formed in the supporting projection 37 and on the bottom of the step-shaped recess 42. Locking screws 44 can be screwed into the bores 38, 43 in order to secure the intermediate part 30 and prevent unintentional pivo ting-back in the extraction position.
- the pressure plate 33 is provided with a recess 39.
- the pivot axis formed by the pin projections and pin receptacles 35 and the pivot axis formed by the pivot bolts 45 lie parallel to one another and parallel to the groove guides 26.
- the front side of the supporting body 41 of the ancillary cutting bit columns 21 and the intermediate part 30 are each provided with hook projections 48, 49, which lie opposite one another in the mining position and are surrounded by a chain link, which permits a limited pivoting of the supporting body 41 of the ancillary cutting bit columns 21 relative to the intermediate part 30, which is fastened on the attachment member 20 so as to prevent movement, and is secured against falling out using a cotter pin or the like.
- the roof cutting bit carrier may be fastened to the base in different ways. Under certain circumstances, the roof cutting bit carrier may also allow itself to be moved into a position in which the ancillary cutting bit columns may remain on the intermediate parts, if these are pivoted out for an
- pivot bolts may also be used, which could be secured in various ways. Different mining lines between the extraction cutting bits on the cutting bit carriers and the extraction cutting bits on the ancillary cutting bit carriers could be achieved through the choice of different intermediate parts.
- the attachment member can remain on the base body, despite the ancillary cutting bit column still being positioned in a cantilevered forward manner, and it is only required to fold or pivot the intermediate part back into an installation position, optionally after removing the ancillary cutting bit column and releasing the associated locking means. In the installation position it may be possible to lift off the cutting bit carrier from the base body without the intermediate part disturbing the installation or removal of the cutting bit carrier.
- the ancillary cutting bit columns may be fastened to the intermediate part so as to be partially-pivotable about an axis, so that when the plow may travel in the reverse direction they may swing into a position in which they may have no contact with the face.
- the ancillary cutting bit columns may be pivotably fastened to the intermediate part about pin stubs, which may be integrally formed on the ancillary cutting bit column and which may be only insertable into edge-open pin receptacles when the ancillary cutting bit column is located at a defined pivot position relative to the
- the ancillary cutting bit column and the intermediate part may be provided with hook projections, which may lie opposite one another in the extraction position.
- the ancillary cutting bit columns may in each case be locked against pivoting back into the pivot position for uninstalling using a chain-link-like securing element on the associated intermediate part, wherein the eyelet length of the chain link may determine the degree of freedom of pivoting.
- the attachment member may be provided with latch pins on its underside, which in the installation state may sit in latch recesses on the plow base, and/or the attachment member may be clampable or clamped onto the plow base using wedge-jaws that may be movable using turnbuckles.
- the intermediate part and the ancillary cutting bit column may be movable about mutually parallel axes.
- the fastening surface on the plow base may be laterally bounded by groove guides, and the attachment member may be provided with groove guides on its front surface, wherein the ancillary cutting bit columns may be disposed on both sides of the groove guides.
- the axes may then preferably extend parallel to the grooves on the fastening surface for the roof cutting bit carrier.
- the rear side of the intermediate part may be provided with a pressure plate, which may abut on the attachment member when the ancillary cutting bit column may be in the extraction position.
- a pressure plate in view of force dissipation, it may be preferable that an end face of the pressure plate may abut on an abutment surface on the attachment member in the extraction position in the direction of travel.
- the end face and the abutment surface may extend obliquely to the direction of travel, in order to achieve as large as possible a contact surface between the parts with a small width of the pressure plate.
- the pressure plate in order to be able to install locking means even when subjected to confined space conditions, may be provided with an opening.
- Receiving bores for locking screws may be respectively provided in the attachment member and in the intermediate part, with which the attachment member may be fixable to prevent folding back when disposed in the extraction position.
- the receiving bores may be formed in the intermediate part in the region of the opening.
- the height adjustment and support of the roof cutting bit carrier could also be effected in a way other than via groove guides.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Soil Working Implements (AREA)
- Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
- Knives (AREA)
- Details Of Cutting Devices (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL13710305T PL2831375T3 (en) | 2012-03-30 | 2013-03-15 | Mining plow |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201220101169 DE202012101169U1 (en) | 2012-03-30 | 2012-03-30 | winning plow |
PCT/EP2013/000804 WO2013143658A2 (en) | 2012-03-30 | 2013-03-15 | Mining plow |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2831375A2 true EP2831375A2 (en) | 2015-02-04 |
EP2831375B1 EP2831375B1 (en) | 2016-09-28 |
Family
ID=47901016
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13710305.7A Active EP2831375B1 (en) | 2012-03-30 | 2013-03-15 | Mining plow |
Country Status (7)
Country | Link |
---|---|
US (1) | US20150084396A1 (en) |
EP (1) | EP2831375B1 (en) |
CN (1) | CN104254668B (en) |
DE (1) | DE202012101169U1 (en) |
PL (1) | PL2831375T3 (en) |
RU (1) | RU2014143835A (en) |
WO (1) | WO2013143658A2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3106607A1 (en) * | 2015-06-19 | 2016-12-21 | Caterpillar Global Mining Europe GmbH | Longwall clearing plow |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4037875A (en) * | 1976-06-21 | 1977-07-26 | Coaltex, Inc. | Full face miner |
DE2707724A1 (en) * | 1977-02-23 | 1978-08-31 | Gewerk Eisenhuette Westfalia | PLANE FOR ASYMMETRIC PLANE |
DE2709392C2 (en) * | 1977-03-04 | 1985-09-12 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Coal plane |
DE2836133C2 (en) * | 1978-08-18 | 1991-05-08 | Gewerkschaft Eisenhütte Westfalia GmbH, 4670 Lünen | Planer with height-adjustable ridge chisel carrier |
DE3041485A1 (en) * | 1980-11-04 | 1982-06-16 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | PLANER FOR THE UNDERGROUND PRODUCTION OF COAL AND THE LIKE |
DE3106565A1 (en) * | 1981-02-21 | 1982-09-16 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Baseplate plough |
DE3447190C2 (en) * | 1984-12-22 | 1995-06-08 | Westfalia Becorit Ind Tech | Device for attaching a planer upper part to a planer lower part |
DE19537386A1 (en) * | 1995-10-07 | 1997-04-10 | Bochumer Eisen Heintzmann | Continuously operating mining machine with endless chain carrying cutters |
DE19637789B4 (en) | 1996-09-17 | 2004-03-04 | Dbt Gmbh | Plane for the underground extraction of coal and. like. |
DE20118259U1 (en) | 2001-11-09 | 2002-01-31 | DBT Bergbau-Service GmbH, 44534 Lünen | slicer |
DE202004001301U1 (en) * | 2004-01-28 | 2004-04-01 | Dbt Gmbh | Mining machine with detachable guide piece and guide piece therefor |
DE102009003808A1 (en) * | 2009-04-21 | 2010-10-28 | Bucyrus Europe Gmbh | Chisel arrangement for extraction planer and production planer for planing plants |
DE202010000457U1 (en) | 2010-03-24 | 2011-08-08 | Bucyrus Europe Gmbh | winning plow |
DE202010008292U1 (en) * | 2010-08-16 | 2011-12-22 | Bucyrus Europe Gmbh | Planing equipment for mining and planing body for this |
-
2012
- 2012-03-30 DE DE201220101169 patent/DE202012101169U1/en not_active Expired - Lifetime
-
2013
- 2013-03-15 CN CN201380017422.3A patent/CN104254668B/en active Active
- 2013-03-15 US US14/389,107 patent/US20150084396A1/en not_active Abandoned
- 2013-03-15 WO PCT/EP2013/000804 patent/WO2013143658A2/en active Application Filing
- 2013-03-15 EP EP13710305.7A patent/EP2831375B1/en active Active
- 2013-03-15 PL PL13710305T patent/PL2831375T3/en unknown
- 2013-03-15 RU RU2014143835A patent/RU2014143835A/en not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO2013143658A2 * |
Also Published As
Publication number | Publication date |
---|---|
CN104254668A (en) | 2014-12-31 |
CN104254668B (en) | 2017-02-22 |
US20150084396A1 (en) | 2015-03-26 |
EP2831375B1 (en) | 2016-09-28 |
WO2013143658A3 (en) | 2013-12-05 |
RU2014143835A (en) | 2016-05-27 |
DE202012101169U1 (en) | 2013-07-01 |
PL2831375T3 (en) | 2017-06-30 |
WO2013143658A2 (en) | 2013-10-03 |
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