EP2286064A2 - Guidage de chaîne pour la chaîne d'entraînement d'un outil minier - Google Patents

Guidage de chaîne pour la chaîne d'entraînement d'un outil minier

Info

Publication number
EP2286064A2
EP2286064A2 EP09735707A EP09735707A EP2286064A2 EP 2286064 A2 EP2286064 A2 EP 2286064A2 EP 09735707 A EP09735707 A EP 09735707A EP 09735707 A EP09735707 A EP 09735707A EP 2286064 A2 EP2286064 A2 EP 2286064A2
Authority
EP
European Patent Office
Prior art keywords
chain
chain guide
guide according
pressure roller
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.)
Granted
Application number
EP09735707A
Other languages
German (de)
English (en)
Other versions
EP2286064B1 (fr
Inventor
Adam Klabisch
Norbert Hesse
Gerhard Siepenkort
Klaus Duhnke
Diedrich Bettermann
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.)
Caterpillar Global Mining HMS GmbH
Original Assignee
Bucyrus Europe 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
Application filed by Bucyrus Europe GmbH filed Critical Bucyrus Europe GmbH
Priority to PL09735707T priority Critical patent/PL2286064T3/pl
Publication of EP2286064A2 publication Critical patent/EP2286064A2/fr
Application granted granted Critical
Publication of EP2286064B1 publication Critical patent/EP2286064B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C27/00Machines which completely free the mineral from the seam
    • E21C27/20Mineral freed by means not involving slitting
    • E21C27/32Mineral freed by means not involving slitting by adjustable or non-adjustable planing means with or without loading arrangements
    • E21C27/34Machine propelled along the working face by cable or chain
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C29/00Propulsion of machines for slitting or completely freeing the mineral from the seam
    • E21C29/04Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains
    • E21C29/14Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains by haulage cable or chain pulling the machine along the working face
    • E21C29/145Means for tensioning the haulage chains or cables

Definitions

  • the invention relates to a chain guide for a drive chain of a mining machine, in particular for a plow chain for moving a mining planer, provided with end portions of the mining machine or can be arranged drive and / or deflection stations with drive or Umlenkkettenganizan for the drive chain and at least one in spatial proximity to the sprockets arranged on the drive and / or deflection, transversely to the direction of movement of the chain against the load and / or Lostrum engageable or employed in operation chain guide element.
  • a chain guide element is formed by a holding surface having a pressure surface, which can be inserted into a receiving pocket in the region of the chain guide, that he placed with a one-sided open bolt receptacle on a arranged in the receiving pocket hinge pin and then around this is pivoted down into the pocket until its lower pressure surface presses against the drive chain and it can be locked in this position with a locking arrangement.
  • the replacement of the hold-down with the pressure surface arranged thereon and replacement with a new, appropriately designed chain guide element is possible in a short time, so that downtime can be minimized in case of wear of the pressure surface of the blank holder.
  • the known chain guide elements, on which the drive chain is moved with not inconsiderable pressure force and speed, subject to high wear so that their replacement within relatively short time intervals is required to ensure the proper operation of the mining machine.
  • the object of the invention is to avoid these disadvantages and to provide a chain guide of the aforementioned type, with which the wear in the region of the chain guide element is significantly reduced.
  • Chain guide element has at least one against the chain links of the drive chain employed or engageable pressure roller.
  • the pressure roller is preferably rotatably mounted on a roller axle and interchangeable with this.
  • the roller axle is so then removed in unit with the rotatably mounted pressure roller and exchanged for a corresponding new part, so that the downtime of the mining machine are limited to a minimum.
  • the pressure roller can be arranged and / or stored particularly advantageously at an attachment which is replaceably insertable or inserted in the inlet region of the drive and / or deflection station.
  • the pressure roller is arranged on a replaceable insertable in a receiving pocket attachment, which can then also contain other components of the chain guide, such as a known pawl for the chain, which when replacing the drive or Umlenkkettenizer the drive or deflection stations is used to keep the chain in such maintenance work tense.
  • the roller axis of the pressure roller may be supported on one or more bearing blocks, which are preferably mounted interchangeable in a receiving pocket.
  • a lower bearing block and an upper bearing block can be provided.
  • the bearing blocks can be secured by a preferably hinged lid in the receiving pocket against loosening.
  • the bearing blocks can be secured by means of at least one sliding latch in the receiving pocket against loosening.
  • an upper bearing block is provided with sliding guides for sliding bolt.
  • the sliding guides may in particular consist of hook-like strips which vertically fix one or preferably two slide bars which can be displaced relative to one another and at the same time guide them horizontally.
  • it can be mounted above the receiving pocket holding blocks with mutually facing latch pockets, and / or the sliding latch have locking lugs which border in the latch state in the latch pockets to secure the upper bracket in the locked state of the sliding latch against loosening.
  • each slide bolt having a U-shaped base with 3 legs, of which an edge leg and an intermediate leg at opposite outer sides is provided with guide rails for positive insertion in sliding guides, and of which second edge leg has a penetration hole for a locking screw.
  • a lower axle receptacle for the roller axle can be arranged directly at the bottom of the recess and preferably be formed or fastened fixedly to the attachment piece.
  • a construction may be advantageous, having a plurality of successively arranged in the direction of passage of the chain, employed against the chain pressure rollers, which the required high pressure force distributed over several roles and the surface pressures between chain and tread of the pressure rollers can be kept low or reduced.
  • the pressure roller can be employed under the action of at least one spring element and / or a shock absorber against the chain, whereby a deflection of the chain in a direction transverse to its passage direction, for example, jerky loads is made possible without, however, the pressure roller of the chain only temporarily withdraws and thereby, if only for a short time, can no longer fulfill its leadership function.
  • FIG. 1 a chain guide for a drive chain of a coal planer in
  • FIG. 2 shows a chain guide according to FIG. 1 in a perspective view obliquely from above, partly in section;
  • FIG. 4 shows an attachment which can be used in the chain guide according to FIGS. 1 and 2 with a pressure roller accommodated therein in a perspective illustration according to a first embodiment variant
  • FIG. 5 shows an attachment which can be used in the chain guide according to FIGS. 1 and 2 with a pressure roller accommodated therein in a perspective exploded view according to a second embodiment variant
  • FIG. 6 a longitudinal section through the attachment according to FIG. 5 in the assembled state of the pressure roller.
  • FIG. 7 in perspective a detail view of the slide bolt pair.
  • the arrangement shown in Figs. 1 and 2 shows a scraper chain conveyor at one of its end portions, provided in a manner known per se with a planing guide for a coal mining planer.
  • the planer (not shown) is driven by means of a drive chain 11, which is received in a lying below the conveying plane chain case 10.
  • the arrangement has a first chain channel 13 for the load strand 14 of
  • a chain guide 20 is arranged with a the lower strand of the chain pushing down and thereby from the chain channel for the return strand to drive sprocket 18 deflecting chain guide element 21 having a pressure roller 22 and in Essentially consists of one which presses with its track 23 from above against the drive chain 11 and the chain thereby deflects the drive gear back and keeps under tension.
  • the chain guide 20, which consists of a replaceable mounted in a gap 24 above the chain channel 15 at the transition region 19 of the mining machine attachment piece 25 is shown in more detail in Figures 3 and 4 in a first embodiment.
  • the attachment piece 25 consists of a housing with two side walls 26 and a rear end wall 27, wherein the two side walls 26 are provided with upwardly open recesses as receiving pockets 40 for bearing blocks 28, 28 A, a roller shaft 29 for the pressure roller 22 rotatably record.
  • the receiving pocket 40 is bounded at the rear by the end wall 27 and downwardly and frontally by the respective side wall 26. Both bearing blocks 28, 28 A are formed congruent to the peripheral wall of the receiving pocket 40 and positively received in this.
  • the lower bearing block 28 can also be firmly anchored in the receiving pocket and for this purpose e.g. be welded.
  • the upper bracket 28 A after the nuts 41 were released from the two vertical standing and anchored in the lower bracket 28 or in the side wall 26 threaded rods 42 are removed upwards, whereby the roller shaft 29 is exposed and then together with the pressure roller 22 also can be removed from the lower bracket 28 and replaced with another pressure roller 22 together with roller axis 29.
  • the pressure roller 22 is mounted on the roller axle 29 with two tapered roller bearings 30 in O-
  • the raceway 23 of the pressure roller 22 has a concave, adapted to the defined by the chain links 33 envelope surface 34 shape, so that the pressure roller in its effect on the chain not only keeps them under tension and deflects, but at the same time prevents a lateral course of the chain.
  • the recorded in the attachment piece 25 and in the receiving pocket 24 pressure roller 22 is covered at the top of a hinged lid 35, which largely prevents access of coal dust or rocks to the role, after its opening but easy access to the pressure roller 22 creates and thus makes it possible to remove dust and other impurities, which have yet fixed in the area of the pressure roller and / or in the receiving pocket in the attachment, with simple means again.
  • lid 35 is pivoted open and then, as described above, the Bearing 28, 28A open and the pressure roller 22 is lifted together with its roller axis 29 and replaced with a new role with roller axis.
  • the lid 35 can also form the securing element which presses the bearing blocks 28, 28 A down into the receiving pocket 40 secures against loosening. But the lid 35 can also hold only the upper bracket 28A in the closed position.
  • Chain guide 120 which in turn essentially consists of an attachment piece 125, which can be attached via the here rear, designed as a bearing plate with strip-shaped edges side wall 126 formed on a trained for receiving the bearing plate bracket a drive station of a planing machine.
  • the front side wall 126 shown only in FIG. 6, can be fastened via a tilting hinge 160 to a spar or side brace of the drive station, whereby, provided the retaining hooks for the rear side wall 126 are loosened, the entire attachment piece 125 pivots can be, for example, to carry out repair work on a parallel to the planer laid chain scraper conveyor.
  • a pawl 161 is articulated pivotally between the two side walls 126 and the attachment piece 125 so as to be able to fix the chain strand of the plow chain for repair cases with the cover cover 162 removed or swung up.
  • a receiving pocket 140 is formed, in which a rotatably mounted on a bearing shaft 129, the the actual chain guide element 121 forming pressure roller 122 can be exchangeably fixed, wherein the pressure roller 122 against a planing chain, not shown in FIGS. 5 and 6 can be pressed or with their career, as already described above, pressed.
  • the plow chain passes in the operating state, a channel opening 151 in the front end wall 127 here and a channel opening 152 in the rear end wall 127A here.
  • pressure roller 122 With the pressure roller 122, the plow chain between two channel openings 151, 152 can be biased downward, whereby an optimal and low-wear inlet of the upper chain strand of the plow chain in the planing sprocket (not shown) is achieved without the plow chain in contact, for example, with the edges the rear channel opening 152 comes.
  • pressure roller 122 and roller shaft 129 are designed as a unit, which is why the entire pressure roller 122 can be easily and quickly replaced with another pressure roller, if wear on the envelope of the pressure roller 122 or its storage has occurred.
  • the roller shaft 129 with its two laterally on the pressure roller 122nd projecting stub shafts 129A in axle mounts 155 rotatably inserted the lower axle receptacle 155 is formed directly on a wall portion 126A of the front side wall 126 here and the rear lower axle receptacle on a rear wall portion in the rear side wall 126.
  • the axle receptacle 155 may in this case consist either of a correspondingly shaped recess in the wall section 126 A or, as shown in Fig.
  • Achsability 155 together with ring segment 156 form the attachment piece 125 of the chain guide 120 thus a lower bearing block, which is fixed and integrally formed on the attachment piece 125, while only an upper, generally designated by reference numeral 128 bearing block is removable.
  • the upper bearing block 128 at the same time forms the cover for the pressure roller 122 and the bearing block 128 has two side bars 171 with here rectangular cross-section, which can be inserted into the correspondingly congruent receiving pockets 140 in the wall sections 126A in a precisely fitting and form-fitting manner.
  • Both side bars 171 are on their bottom edge provided with further ring segments 176 which form like the lower ring segments 156 on the wall portions 126A each one half of the axle, here thus the upper half of the Achsfact 155 and in the assembled state the stub axle 129 A, in the illustrated embodiment, a non-circular, preferably has approximately oval cross section, rotatably between two ring segments 156, 176 record.
  • the bearing block 128 designed as a cover is provided with a cover web 172 connecting the two side webs 171, above which two lateral, approximately L-shaped hook strips 173 are welded, which with their undercut sections form sliding guides for two sliding bolts 190 of identical design to each other, with which the locking position of the upper bearing block 128 can be secured to prevent inadvertent release of the bearing block 128 and thus also the displacement of the roller shaft 129 of the pressure roller 122.
  • Each sliding bolt 190 has a substantially U-shaped base body 191 with a short edge leg 192, a longer edge leg 193 and an intermediate leg 194 which is perpendicular to both edge legs 192, 193. Both the intermediate leg 194 and the end face of the longer edge leg 193 are each provided at the edge with a step, whereby guide rails 195 are formed on the edge legs 193 and 196 on the intermediate leg 194, with which the sliding bolt 190 each form fit to the strips forming the sliding guide (173, Fig. 5) vertically immovable and horizontally movable guided can be determined.
  • the respective shorter edge leg 192 is dimensioned such that in the assembled state, the guide bar 196 on the intermediate leg 194 and the much shorter guide bar 195 on the end face of the edge leg 193 are plane-parallel to each other.
  • the respective shorter edge limb 192 dips into the intermediate space 197 between the two edge limbs 192, 193, and the distance between the two longer edge limbs 193 can be reduced by pushing apart the two shorter edge limbs 192.
  • the upper bearing block (128, FIG. 5) be mounted or dismounted in the receiving pocket in order to open or close the displacement for the roller axle (129, FIG. 5).
  • the longer edge legs 193 are provided on the outside with locking lugs 198, the tops of which taper in a wedge shape towards the free ends and the locking of the bearing block 128, as shown in FIG. 6, in lock pockets 165 bordering on holding blocks 166 are formed, which in turn on the upper deck surfaces of two end walls 127, 127 A are mounted with mutually facing latch pockets 165.
  • each of the shorter edge leg 192 is provided with a through-hole 199, which is penetrated by a clamping screw 180.
  • the distance between the two shorter edge legs 192 can be reduced, whereby the distance between the two outer, longer edge leg 193 increases and the locking lugs 198 correspondingly deeper into the latch pockets 165.
  • the chain guide according to the invention may alternatively or additionally attack on the load strand of the drive chain and of course it is not only suitable for a plow chain, but for example also for drive chains of chain scraper conveyors.
  • the bearing blocks can also be used in receiving pockets, which are formed directly on the side walls of the drive or reversing stations.

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)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Lubricants (AREA)
  • Sawing (AREA)
  • Framework For Endless Conveyors (AREA)
EP09735707A 2008-04-22 2009-04-21 Guidage de chaîne pour la chaîne d'entraînement d'un outil minier Active EP2286064B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09735707T PL2286064T3 (pl) 2008-04-22 2009-04-21 Mechanizm prowadzenia dla łańcucha napędowego maszyny górniczej

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202008005609U DE202008005609U1 (de) 2008-04-22 2008-04-22 Kettenführung für eine Antriebskette einer Bergbaumaschine
PCT/IB2009/051635 WO2009130667A2 (fr) 2008-04-22 2009-04-21 Guidage de chaîne pour la chaîne d'entraînement d'un outil minier

Publications (2)

Publication Number Publication Date
EP2286064A2 true EP2286064A2 (fr) 2011-02-23
EP2286064B1 EP2286064B1 (fr) 2012-02-15

Family

ID=40758727

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09735707A Active EP2286064B1 (fr) 2008-04-22 2009-04-21 Guidage de chaîne pour la chaîne d'entraînement d'un outil minier

Country Status (10)

Country Link
US (1) US8544960B2 (fr)
EP (1) EP2286064B1 (fr)
CN (1) CN102016229B (fr)
AT (1) ATE545768T1 (fr)
DE (1) DE202008005609U1 (fr)
MX (1) MX2010010959A (fr)
PL (1) PL2286064T3 (fr)
RU (1) RU2461711C2 (fr)
UA (1) UA99763C2 (fr)
WO (1) WO2009130667A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202012104441U1 (de) * 2012-11-16 2014-02-17 Caterpillar Global Mining Europe Gmbh Gewinnungsanlage für die Mineraliengewinnung, Gewinnungsmaschine und Zugschlitten hierfür
EP3000962B1 (fr) 2014-09-25 2017-06-14 Caterpillar Global Mining Europe GmbH Ensemble de guidage de rabot de mine
CN109720786B (zh) * 2018-12-05 2021-05-14 中国煤炭科工集团太原研究院有限公司 一种双伸缩机尾链条张紧装置
CN115228700B (zh) * 2022-07-15 2023-12-19 南通海迅特雷卡电梯产品有限公司 一种电梯用平衡补偿链的自动化控制浸塑生产线

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Also Published As

Publication number Publication date
US20110095595A1 (en) 2011-04-28
WO2009130667A3 (fr) 2009-12-17
ATE545768T1 (de) 2012-03-15
RU2010147385A (ru) 2012-05-27
WO2009130667A2 (fr) 2009-10-29
PL2286064T3 (pl) 2012-06-29
EP2286064B1 (fr) 2012-02-15
CN102016229B (zh) 2013-08-28
MX2010010959A (es) 2010-12-21
RU2461711C2 (ru) 2012-09-20
US8544960B2 (en) 2013-10-01
UA99763C2 (ru) 2012-09-25
DE202008005609U1 (de) 2009-06-10
CN102016229A (zh) 2011-04-13

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