EP2444589B1 - Auxiliary harness for releasing a clamp connection for nesting groove profiles involved in subterranean pit construction - Google Patents
Auxiliary harness for releasing a clamp connection for nesting groove profiles involved in subterranean pit construction Download PDFInfo
- Publication number
- EP2444589B1 EP2444589B1 EP11185797.5A EP11185797A EP2444589B1 EP 2444589 B1 EP2444589 B1 EP 2444589B1 EP 11185797 A EP11185797 A EP 11185797A EP 2444589 B1 EP2444589 B1 EP 2444589B1
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- EP
- European Patent Office
- Prior art keywords
- base plate
- auxiliary harness
- legs
- spindle
- brackets
- 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.)
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- 238000010276 construction Methods 0.000 title claims description 4
- 230000000284 resting effect Effects 0.000 claims 1
- 210000002414 leg Anatomy 0.000 description 24
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 210000000078 claw Anatomy 0.000 description 5
- 239000011324 bead Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 210000000689 upper leg Anatomy 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
- E21D11/186—Pre-stressing or dismantling devices therefor
Definitions
- the invention relates to an auxiliary harness for releasing a clamping connection for nested channel profiles of the underground mine excavation according to the features in the preamble of claim 1.
- Such utensils count within the scope of DE 25 39 528 B1 to the state of the art. It consists of two modules that are initially independent of each other, which must be coupled with each other for on-site deployment.
- a first assembly comprises a pivot bearing plate and two pivotally connected to this pivot bearing plate, U-shaped curved tie rods.
- transversely directed recesses are provided in the end regions of the longitudinal sides of the pivot bearing plate into which the end sections of the tension struts formed from flat iron are inserted.
- the tension struts formed from round solid material are welded in the end sections. Swivel pins complete the swivel connection.
- the first assembly still has a fork joint for a pivotable support strut.
- the support strut formed from a flat iron section has a trough-like end section, which is adapted to the contour of the bottom of the comprehensive channel profile.
- a second additional assembly of the known auxiliary harness comprises a plate-like swivel goggles into which a hydraulically actuated thrust piston unit is inserted.
- the swivel glasses is connected by means of a bayonet-type locking with the pivot bearing plate.
- two bolts with screw shanks and end nuts are provided.
- the bolts are inserted into through-holes of the pivot bearing plate and welded.
- the DE 23 22 658 C discloses an auxiliary harness with two consisting of flat iron brackets, which engage with arcuate hook behind the flanges of the inset gutter profile. Furthermore, the utensils on an abutment, which is penetrated by the legs of the bracket and is supported with a cam on the comprehensive gutter profile.
- the fixation of the auxiliary harness to the channel profiles is a wedge, which is driven through openings in the legs of the bracket and in this way pulls the hooks of the bracket and the abutment against each other.
- the auxiliary crockery consists of a the expansion elements with the clip ends provided means for grasping the expansion elements and a hydraulic cylinder piston assembly in the region of the staple back. It is provided that the clamping clip consists of a traverse with hinged at both ends clamp brackets.
- the harness consists of a pair of pliers, of which a leg is formed at one end as a hook and at the other end as a seat for the tensioning device, wherein the other pliers leg is articulated between the seat and the hook, and on its outside a ball socket as an abutment for the free end of a piston rod of the clamping connection forming hydraulic cylinder.
- the DE 30 44 306 A1 shows a clamping connection with clamps, which each consist of a hook screw and a half clamp.
- the screw heads of the hook bolts are equipped with a laterally projecting tab in which recesses are provided, can be inserted into the claws of a release harness.
- the recesses are designed as two interlocking, different radii having holes. The larger bore allows easy insertion of a claw head. Free ends of the claw of the release harness are stored in a traverse. This storage should allow rotations or pivoting of the claws. After inserting the claw heads of the release harness in the recesses provided for this, the screw heads of the pressure screws are tightened and thus clamped the release harness.
- a Tubby rector is known according to the DT 25 04 968 A1 , A hydraulic cylinder used for this purpose can be replaced by a spindle drive if required.
- a hydraulically operated auxiliary equipment belongs to the prior art ( DE 2 254 993 C ). Apart from the fact that even with this utensils behind the flanges of the inset channel profile clearances for attaching the hooks of the bracket must be created, has such an effective hydraulic auxiliary equipment a considerable weight. Taking into account that the auxiliary harness must be determined by hand on the gutter profiles, thus its acceptance by the miners underground is low, so that the use is often omitted. However, then the risk of accidents at work with regard to breaking and then thrown clamping screws when loosening the clamp connections is very high.
- the invention is - based on the state of the art - the task of creating an auxiliary harness for releasing the clamping connections of each other lying gutter profiles of underground mining expansion, which is accepted by the weight of the miners and the underground safety aspects despite a simple structure in full.
- the invention proposes an auxiliary harness with only a single assembly consisting of the two U-shaped brackets and of the end portions of the legs of the bracket relatively displaceable interspersed base plate including rotatably mounted therein spindle. Hydraulic energy does not have to be provided. The associated expense is eliminated.
- the legs of the bracket are cranked.
- the cranking is done towards the spindle.
- the effective lever arms are reduced from the spindle to the neck portions of the webs of the bracket, resulting in that fewer moments are initiated.
- the stabilization of the bracket is improved during assembly.
- the bend also serves to make room for an impact wrench to easily access the nuts of the clamping screws.
- the spindle is first rotated so far in the base plate until the webs of the two straps can be easily moved over the side hook-shaped portions of the upper flap, preferably behind the heads of the clamping screws. For this purpose, there is no need to create clearances behind the flanges of the inset channel profile, since the sections lie in the thickness range of the channel profiles. Subsequently, the spindle is moved against the lower flap. After their contact with the web of the lower flap over the spindle and the base plate, the straps are pulled firmly against the upper flap, so that then a secure tension of the two is ensured in each other lying gutter profiles.
- the insertion resistance of the channel profiles should be at least 150 kN. This ensures that the channel profiles can not slide relative to each other after loosening the easily accessible between the legs of the bracket nuts of the clamping screws.
- the base plate by means of nuts, in particular locking nuts, is fixable to threaded portions of the legs. These are then located on the side of the base plate opposite the split nuts. After applying the auxiliary harness to the channel profiles, the base plate can be fixed in position stabilized on the legs of the bracket in this way.
- the auxiliary utensils according to the invention can be constructed comparatively easily, so that its acceptance by the miners is to be set high. Furthermore, its handling is easy. It can easily be started by a single miner and released again. In particular, these two circumstances, together with the integrity safety-related function, should help to significantly reduce the risk of accidents.
- the weight of the auxiliary harness can be reduced even further, that the brackets are formed of round material. Their production can be done with simple bending operations.
- a mandrel In the middle of the bottom flap opposite end face of the spindle, a mandrel is provided in an advantageous manner. This mandrel penetrates when creating the auxiliary harness in the material of the lower flap and causes a fixation of the spindle on the lower flap. As a result, not only slipping of the spindle and thus of the auxiliary harness is prevented by the clamp connection, but also created a marker that allows a bergbe rotatedlichen control instance to properly understand if the invention, the utensils according to the invention has also been used properly when loosening the clamp connections of the channel profiles ,
- the spindle is rotatably mounted in a fixed in the base plate sleeve.
- the sleeve with a provided circumferential collar and in the base plate a correspondingly adapted stepped bore is provided.
- the collar faces the gutter profiles.
- a positive connection between the sleeve and the base plate is achieved, via which the forces occurring during bracing of the auxiliary harness can be properly intercepted.
- the sleeve can be soldered into the base plate and does not need to be welded.
- a polygon can be provided at the free end of the spindle.
- the base plate is configured in a cross shape, which is provided by the legs of the bracket penetrated holes end of the radially extending plate legs.
- At least two legs of the bracket are connected via a tension spring.
- the tension spring particularly supports the parallel holding of the two brackets during assembly. It then ensures that the webs of the bracket can not slip off the hook-shaped sections of the upper flap or from the heads of the clamping screws. It is appropriate in the length range between the base plate and the end face of the mandrel carrying the mandrel.
- the webs of the bracket, and in addition to the legs, spacers are provided on the inside.
- the contour of the heads of the clamping screws in conjunction with the lateral hook-shaped portions of the upper flap is taken into account, so that the webs can be properly positioned on the heads of the clamping screws and the hook-shaped sections.
- FIG. 1 With 1 is in the FIG. 1 the overlapping area of two nested channel profiles 2.3 an otherwise not shown underground mining construction referred to.
- These channel profiles 2,3 sit down - as well as the FIG. 3 shows - each consisting of a web 4, the web 4 adjoining, arcuately curved legs 5 and end of the legs 5 provided flanges 6 together.
- the flanges 6 are undercut, so that the flanges 6 of the comprehensive channel profile 2 can be positively supported in the undercuts 7 of the inset channel profile 3.
- the channel profiles 2, 3 are held together in the overlapping area 1 by means of at least two clamping connections 8, which (see FIGS. 1 . 3 and 4 ) in each case from one of the inset channel profile 3 engages behind upper flap 9 with lateral hook-shaped sections 10, with the flanges 6 of the incoming channel profile 3 cross beads 11 and provided between the beads 11 retracted length portion 12, a comprehensive gutter profile 2 cross-bottom flap 13 with laterally transversely projecting legs 14 and with engaging in the undercuts 7 of the flanges 6 of the comprehensive channel profile 2 beads 15 and clamping screws 16 with nuts 17 together.
- the clamping screws 16 are with their heads 18 in the hook-shaped portions 10 of the upper flap 9, while the nuts 17 are supported on the lateral legs 14 of the bottom flap 13.
- the auxiliary harness 19 has two round steel U-shaped bracket 20 with webs 21 and cranked legs 22.
- the legs 22 have end threaded portions 23 which pass through holes in radially extending legs 24 of a cross-shaped base plate 25.
- the recesses 27 are used for trouble-free attachment, for example, an impact wrench to the nuts 17 of the clamping screws sixteenth
- a sleeve 31 is fixed centrally in a stepped bore 42, for example soldered ( FIG. 6 ).
- This sleeve 31 has an internal thread 32 and a collar 33 which faces the comprehensive channel profile 2.
- the sleeve 31 is penetrated by a spindle 34 having a polygon 35 at the free end for attaching a impact wrench and at the opposite end a plate 36.
- a pointed spout 37 is provided in the middle of the end face 41 of the plate 36.
- the auxiliary harness 19 is recognized in the screwed out of the base plate 25 spindle 34 in the region of a clamping connection 8 that the bracket 20 with the webs 21 perfectly on the hook-shaped portions 10 of the upper flap 9 and the heads 18 of the clamping screws 16 grasp ,
- the auxiliary harness 19 then has the configuration of FIGS. 3 and 4 , Thereafter, nuts 39 on the threaded portions 23 which are on the above-mentioned and secured by pins 29 nuts 28 opposite side of the base plate 25, rotated in the direction of the base plate 25, so that a positional fixation of the base plate 25 is ensured on the brackets 20 ,
- the spindle 34 is displaced against the web 40 of the bottom flap 13 ( FIG. 3 ), and in fact so far that the auxiliary harness 19 is applied with a force that ensures a push-in resistance of the two channel profiles 2,3 of at least 150 kN.
- the clamping connections 8 can be released safely, so that after relieving the auxiliary harness 19, the channel profiles 2.3 can be robbed easily.
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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Abstract
Description
Die Erfindung betrifft ein Hilfsgeschirr zum Lösen einer Klemmverbindung für ineinander liegende Rinnenprofile des untertägigen Grubenausbaus gemäß den Merkmalen im Oberbegriff des Anspruchs 1.The invention relates to an auxiliary harness for releasing a clamping connection for nested channel profiles of the underground mine excavation according to the features in the preamble of claim 1.
Ein solches Hilfsgeschirr zählt im Umfang der
Eine erste Baugruppe weist eine Schwenklagerplatte und zwei mit dieser Schwenklagerplatte schwenkbar verbundene, U-förmig gebogene Zugstreben auf. Zur Verbindung der Schwenklagerplatte mit den Zugstreben sind in den Endbereichen der Längsseiten der Schwenklagerplatte quer gerichtete Aussparungen vorgesehen, in welche die aus Flacheisen gebildeten Endabschnitte der Zugstreben eingesetzt werden. Die an sich aus rundem Vollmaterial gebildeten Zugstreben sind in den Endabschnitten festgeschweißt. Schwenkbolzen komplettieren die Schwenkverbindung.A first assembly comprises a pivot bearing plate and two pivotally connected to this pivot bearing plate, U-shaped curved tie rods. To connect the pivot bearing plate to the tension struts, transversely directed recesses are provided in the end regions of the longitudinal sides of the pivot bearing plate into which the end sections of the tension struts formed from flat iron are inserted. The tension struts formed from round solid material are welded in the end sections. Swivel pins complete the swivel connection.
Außerdem gehört zur ersten Baugruppe noch ein Gabelgelenk für eine schwenkbare Stützstrebe. Die aus einem Flacheisenabschnitt gebildete Stützstrebe besitzt einen wannenartigen Endabschnitt, welcher der Kontur des Bodens des umfassenden Rinnenprofils angepasst ist. Ferner gehört hierzu noch eine Kette, welche mit einer Ringschraube an der Schwenklagerplatte und mit ihrem anderen Endabschnitt am Verzug des Streckenstoßes festgelegt werden kann.In addition, the first assembly still has a fork joint for a pivotable support strut. The support strut formed from a flat iron section has a trough-like end section, which is adapted to the contour of the bottom of the comprehensive channel profile. Furthermore, this still includes a chain which can be determined with an eyebolt on the pivot bearing plate and with its other end portion of the delay of the distance shock.
Eine zweite zusätzliche Baugruppe des bekannten Hilfsgeschirrs umfasst eine plattenartige Schwenkbrille, in welche eine hydraulisch beaufschlagbare Schubkolbeneinheit eingesetzt ist. Die Schwenkbrille wird mittels einer bajonettverschlussartigen Verriegelung mit der Schwenklagerplatte verbunden. Dazu sind zwei Schraubbolzen mit Schraubenschäften und endseitigen Muttern vorgesehen. Außerdem existieren zwei schlüssellochartige Ausnehmungen in der Schwenkbrille, welche auf dem Teilkreis der Schraubbolzen liegen. Die Schraubbolzen sind in Durchgangsbohrungen der Schwenklagerplatte eingesetzt und festgeschweißt. Hierdurch wird nicht nur der Fertigungsaufwand für die erste Baugruppe noch weiter heraufgesetzt, sondern es tritt auch der Fertigungsaufwand für die zweite Baugruppe hinzu.A second additional assembly of the known auxiliary harness comprises a plate-like swivel goggles into which a hydraulically actuated thrust piston unit is inserted. The swivel glasses is connected by means of a bayonet-type locking with the pivot bearing plate. For this purpose, two bolts with screw shanks and end nuts are provided. In addition, there are two keyhole-like recesses in the swivel goggles, which lie on the pitch circle of the bolts. The bolts are inserted into through-holes of the pivot bearing plate and welded. As a result, not only the production cost for the first module is further increased, but it also adds the manufacturing cost of the second module.
Der Bergmann, welcher das bekannte Hilfsgeschirr handhaben will, ist mithin darauf angewiesen, nicht nur - logistisch gesehen - zwei gesonderte Baugruppen am untertägigen Ort ihres Einsatzes bereit zu halten, sondern er muss auch nacheinander diese Baugruppen einerseits am Ausbau und andererseits miteinander montieren, wobei zu beachten ist, dass beim Zusammenbau der beiden Baugruppen die vergleichsweise schwere Schubkolbeneinheit gemeinsam mit der Schwenkbrille gehandhabt werden muss. Dies ist mit einem nicht unerheblichen Aufwand verbunden und auch gewichtsmäßig von nur einem Bergmann kaum zu bewerkstelligen.The miner, who wants to handle the known auxiliary dishes, is therefore dependent not only - logistically - to keep two separate modules at the underground place of their use ready, but he must also successively these modules on the one hand on the expansion and on the other hand to assemble with each other It should be noted that when assembling the two assemblies, the comparatively heavy thrust piston unit must be handled together with the swivel goggles. This is associated with a considerable effort and weight of only a miner barely to accomplish.
Außerdem ist es notwendig, am Ort des Einsatzes hydraulische Energie mit allen ihr anhaftenden Problemen bereit zu stellen, um die Schubkolbeneinheit mit Hilfe einer Handpumpe betätigen zu können.In addition, it is necessary to provide hydraulic energy at the point of use, with all the problems attached to it, in order to actuate the thrust piston unit with the aid of a hand pump.
Die
Problematisch an diesem Hilfsgeschirr ist zunächst der Keil, der keine auch sicherheitstechnische Aspekte im untertägigen Grubenbetrieb berücksichtigende einwandfreie Verspannung der beiden ineinander liegenden Rinnenprofile gewährleistet, um ein Wegschleudern der unter Spannung stehenden Klemmschrauben der die Rinnenprofile im Überlappungsbereich zusammen haltenden Klemmverbindungen zu verhindern.The problem with this auxiliary harness is first of all the wedge, which does not ensure any safety aspects in underground mine operation considering proper clamping of the two nested channel profiles to prevent throwing away the tensioned clamping screws of the channel profiles in the overlap area together holding clamp connections.
Ferner muss im bekannten Fall hinter dem einliegenden und sich mindestens mittelbar am Gebirge abstützenden Rinnenprofil eine Freimachung an den beiden Flanschen geschaffen werden, damit die Haken der Bügel hinter den Flanschen angesetzt werden können.Furthermore, in the known case behind the inset and at least indirectly on the mountains supporting gutter profile a franking on the two flanges must be created so that the hooks of the bracket can be attached behind the flanges.
Ein weiteres Hilfsgeschirr ist in der
Darüber hinaus beschreibt die
Die
Bekannt ist darüber hinaus ein Tubbingerektor entsprechend der
Schließlich zählt ein mit hydraulischer Energie betätigbares Hilfsgeschirr zum Stand der Technik (
Der Erfindung liegt - ausgehend vom Stand der Technik - die Aufgabe zugrunde, ein Hilfsgeschirr zum Lösen der Klemmverbindungen ineinander liegender Rinnenprofile des untertägigen Grubenausbaus zu schaffen, das vom Gewicht her von den Bergleuten akzeptiert wird und den untertägigen Sicherheitsaspekten trotz einfachem Aufbau in vollem Umfang genügt.The invention is - based on the state of the art - the task of creating an auxiliary harness for releasing the clamping connections of each other lying gutter profiles of underground mining expansion, which is accepted by the weight of the miners and the underground safety aspects despite a simple structure in full.
Die Lösung dieser Aufgabe wird nach der Erfindung in den Merkmalen des Anspruchs 1 gesehen.The solution of this problem is seen according to the invention in the features of claim 1.
Vorteilhafte Weiterbildungen des erfindungsgemäßen Grundgedankens sind Bestandteil der Ansprüche 2 bis 6.Advantageous developments of the basic concept according to the invention are part of
Die Erfindung schlägt danach ein Hilfsgeschirr mit lediglich einer einzigen Baugruppe vor, die aus den beiden U-förmigen Bügeln und der von den Endabschnitten der Schenkel der Bügel relativ verlagerbar durchsetzten Grundplatte einschließlich der hierin drehbar gelagerten Spindel besteht. Hydraulische Energie muss nicht bereit gestellt werden. Der hiermit verbundene Aufwand entfällt.The invention then proposes an auxiliary harness with only a single assembly consisting of the two U-shaped brackets and of the end portions of the legs of the bracket relatively displaceable interspersed base plate including rotatably mounted therein spindle. Hydraulic energy does not have to be provided. The associated expense is eliminated.
Darüber hinaus ist es im Rahmen der Erfindung von Vorteil, dass die Schenkel der Bügel gekröpft sind. Die Kröpfung erfolgt in Richtung zur Spindel. Hierdurch werden die wirksamen Hebelarme von der Spindel zu den Ansatzbereichen der Stege der Bügel verringert, was dazu führt, dass weniger Momente eingeleitet werden. Ferner wird die Stabilisierung der Bügel bei der Montage verbessert. Die Abkröpfung dient auch dazu, dass Platz für einen Schlagschrauber geschaffen wird, um problemlos an die Muttern der Spannschrauben zu gelangen.Moreover, it is within the scope of the invention of advantage that the legs of the bracket are cranked. The cranking is done towards the spindle. As a result, the effective lever arms are reduced from the spindle to the neck portions of the webs of the bracket, resulting in that fewer moments are initiated. Furthermore, the stabilization of the bracket is improved during assembly. The bend also serves to make room for an impact wrench to easily access the nuts of the clamping screws.
Zum Ansetzen des Hilfsgeschirrs an den Grubenausbau wird die Spindel zunächst so weit in der Grundplatte verdreht, bis dass die Stege der beiden Bügel problemlos über die seitlichen hakenförmigen Abschnitte der Oberlasche, bevorzugt auch hinter die Köpfe der Spannschrauben, verlagert werden können. Hierfür brauchenkeine Freimachungen hinter den Flanschen des einliegenden Rinnenprofils geschaffen zu werde, da die Abschnitte im Dickenbereich der Rinnenprofile liegen. Anschließend wird die Spindel gegen die Unterlasche bewegt. Nach ihrem Kontakt mit dem Steg der Unterlasche werden über die Spindel und die Grundplatte die Bügel fest gegen die Oberlasche gezogen, so dass dann eine sichere Verspannung der beiden ineinander liegenden Rinnenprofile gewährleistet ist. Der Einschubwiderstand der Rinnenprofile soll hierbei mindestens 150 kN betragen. Hierdurch wird sichergestellt, dass die Rinnenprofile nach dem Lösen der zwischen den Schenkeln der Bügel gut zugänglichen Muttern der Spannschrauben nicht relativ zueinander gleiten können.To attach the utensils to the pit removal, the spindle is first rotated so far in the base plate until the webs of the two straps can be easily moved over the side hook-shaped portions of the upper flap, preferably behind the heads of the clamping screws. For this purpose, there is no need to create clearances behind the flanges of the inset channel profile, since the sections lie in the thickness range of the channel profiles. Subsequently, the spindle is moved against the lower flap. After their contact with the web of the lower flap over the spindle and the base plate, the straps are pulled firmly against the upper flap, so that then a secure tension of the two is ensured in each other lying gutter profiles. The insertion resistance of the channel profiles should be at least 150 kN. This ensures that the channel profiles can not slide relative to each other after loosening the easily accessible between the legs of the bracket nuts of the clamping screws.
Zur Lagesicherung der Grundplatte an den Schenkeln der Bügel ist es vorteilhaft , dass die Grundplatte mittels Muttern, insbesondere Feststellmuttern, an Gewindeabschnitten der Schenkel fixierbar ist. Diese befinden sich dann auf der den Splintmuttern gegenüber liegenden Seite der Grundplatte. Nach dem Anlegen des Hilfsgeschirrs an die Rinnenprofile kann auf diese Weise die Grundplatte an den Schenkeln der Bügel lagestabilisiert festgelegt werden.To secure the position of the base plate on the legs of the bracket, it is advantageous that the base plate by means of nuts, in particular locking nuts, is fixable to threaded portions of the legs. These are then located on the side of the base plate opposite the split nuts. After applying the auxiliary harness to the channel profiles, the base plate can be fixed in position stabilized on the legs of the bracket in this way.
Das erfindungsgemäße Hilfsgeschirr kann vergleichsweise leicht gebaut werden, so dass seine Akzeptanz seitens der Bergleute hoch anzusetzen ist. Ferner ist seine Handhabung einfach. Es kann ohne weiteres von einem einzigen Bergmann angesetzt und auch wieder gelöst werden. Insbesondere diese beiden Sachverhalte dürften unter Einbeziehung der einwandfreien sicherheitstechnischen Funktion dazu beitragen, dass die Unfallgefahr deutlich reduziert werden kann.The auxiliary utensils according to the invention can be constructed comparatively easily, so that its acceptance by the miners is to be set high. Furthermore, its handling is easy. It can easily be started by a single miner and released again. In particular, these two circumstances, together with the impeccable safety-related function, should help to significantly reduce the risk of accidents.
Das Gewicht des Hilfsgeschirrs kann dadurch noch weiter reduziert werden, dass die Bügel aus Rundmaterial gebildet sind. Ihre Fertigung kann mit einfachen Biegeoperationen erfolgen.The weight of the auxiliary harness can be reduced even further, that the brackets are formed of round material. Their production can be done with simple bending operations.
Mittig der der Unterlasche gegenüberliegenden Stirnseite der Spindel ist in vorteilhafter Weise ein Dorn vorgesehen. Dieser Dorn dringt beim Anlegen des Hilfsgeschirrs in das Material der Unterlasche ein und bewirkt eine Fixierung der Spindel an der Unterlasche. Hierdurch wird nicht nur ein Abrutschen der Spindel und damit des Hilfsgeschirrs von der Klemmverbindung verhindert, sondern darüber hinaus auch eine Markierung geschaffen, die es einer bergbehördlichen Kontrollinstanz erlaubt, einwandfrei nachzuvollziehen, ob beim Lösen der Klemmverbindungen der Rinnenprofile das erfindungsgemäße Hilfsgeschirr auch vorschriftsmäßig benutzt worden ist.In the middle of the bottom flap opposite end face of the spindle, a mandrel is provided in an advantageous manner. This mandrel penetrates when creating the auxiliary harness in the material of the lower flap and causes a fixation of the spindle on the lower flap. As a result, not only slipping of the spindle and thus of the auxiliary harness is prevented by the clamp connection, but also created a marker that allows a bergbehördlichen control instance to properly understand if the invention, the utensils according to the invention has also been used properly when loosening the clamp connections of the channel profiles ,
Herstellungstechnisch ist es günstig, wenn die Spindel in einer in der Grundplatte festgelegten Hülse drehbar gelagert ist. Zweckmäßig ist die Hülse mit einem umlaufenden Kragen versehen und in der Grundplatte ist eine entsprechend angepasste Stufenbohrung vorgesehen. Der Kragen ist den Rinnenprofilen zugewandt. Auf diese Weise wird ein Formschluss zwischen der Hülse und der Grundplatte erreicht, über welche die beim Verspannen des Hilfsgeschirrs auftretenden Kräfte einwandfrei abgefangen werden können. Auch erlaubt diese Gestaltung, dass die Hülse in die Grundplatte eingelötet werden kann und nicht eingeschweißt zu werden braucht.Manufacturing technology, it is advantageous if the spindle is rotatably mounted in a fixed in the base plate sleeve. Appropriately, the sleeve with a provided circumferential collar and in the base plate a correspondingly adapted stepped bore is provided. The collar faces the gutter profiles. In this way, a positive connection between the sleeve and the base plate is achieved, via which the forces occurring during bracing of the auxiliary harness can be properly intercepted. Also allows this design, that the sleeve can be soldered into the base plate and does not need to be welded.
Um die Spindel einwandfrei drehen zu können, beispielsweise mittels eines Schlagschraubers, kann am freien Ende der Spindel ein Mehrkant vorgesehen sein.In order to rotate the spindle properly, for example by means of a striking screwdriver, a polygon can be provided at the free end of the spindle.
Zwecks Materialverringerung und damit einhergehender Gewichtsreduzierung sowie auch zum erleichterten Zugang, beispielsweise eines Schlagschraubers an die Muttern der Spannschrauben, ist die Grundplatte kreuzförmig konfiguriert, wobei von den Schenkeln der Bügel durchsetzte Bohrungen endseitig der sich strahlenförmig erstreckenden Plattenschenkel vorgesehen sind.For the purpose of material reduction and concomitant weight reduction as well as easier access, such as a wrench to the nuts of the clamping screws, the base plate is configured in a cross shape, which is provided by the legs of the bracket penetrated holes end of the radially extending plate legs.
Vorteilhaft sind mindestens zwei Schenkel der Bügel über eine Zugfeder verbunden. Die Zugfeder unterstützt besonders das Parallelhalten der beiden Bügel bei der Montage. Sie sorgt dann dafür, dass die Stege der Bügel nicht von den hakenförmigen Abschnitten der Oberlasche beziehungsweise von den Köpfen der Spannschrauben abrutschen können. Sie liegt zweckmäßig im Längenbereich zwischen der Grundplatte und der den Dorn tragenden Stirnseite der Spindel.Advantageously, at least two legs of the bracket are connected via a tension spring. The tension spring particularly supports the parallel holding of the two brackets during assembly. It then ensures that the webs of the bracket can not slip off the hook-shaped sections of the upper flap or from the heads of the clamping screws. It is appropriate in the length range between the base plate and the end face of the mandrel carrying the mandrel.
Schließlich kann es noch von Vorteil sein, wenn innenseitig der Stege der Bügel, und zwar neben den Schenkeln, Distanzstücke vorgesehen sind. Hierdurch wird der Kontur der Köpfe der Spannschrauben in Verbindung mit den seitlichen hakenförmigen Abschnitten der Oberlasche Rechnung getragen, so dass die Stege einwandfrei an den Köpfen der Spannschrauben sowie den hakenförmigen Abschnitten lageorientiert werden können.Finally, it may be advantageous if the webs of the bracket, and in addition to the legs, spacers are provided on the inside. As a result, the contour of the heads of the clamping screws in conjunction with the lateral hook-shaped portions of the upper flap is taken into account, so that the webs can be properly positioned on the heads of the clamping screws and the hook-shaped sections.
Die Erfindung ist nachfolgend anhand von in den Zeichnungen veranschaulichten Ausführungsbeispielen näher erläutert. Es zeigen:
- Figur 1
- in schematischer Seitenansicht den Überlappungsbereich zweier Rinnenprofile mit zwei Klemmverbindungen;
Figur 2- in schematischer Perspektive ein Hilfsgeschirr zum Lösen der Klemmverbindungen der Rinnenprofile;
Figur 3- einen Querschnitt durch die Rinnenprofile der
Figur 1 entlang der Linie III - III in Richtung der Pfeile IIIa gesehen mit angesetztem Hilfsgeschirr; Figur 4- die
Darstellung der Figur 3 in Richtung des Pfeils IV gesehen; Figur 5- eine Draufsicht auf das Hilfsgeschirr gemäß der
Figur 2 und Figur 6- in vergrößertem Maßstab den Ausschnitt VI der Grundplatte des Hilfsgeschirrs gemäß
.Figur 3
- FIG. 1
- in a schematic side view of the overlap region of two channel profiles with two clamping connections;
- FIG. 2
- an auxiliary harness for releasing the clamping connections of the channel profiles in a schematic perspective;
- FIG. 3
- a cross section through the gutter profiles of
FIG. 1 along the line III - III in the direction of the arrows IIIa seen with attached utensils; - FIG. 4
- the representation of
FIG. 3 seen in the direction of arrow IV; - FIG. 5
- a plan view of the auxiliary harness according to the
FIG. 2 and - FIG. 6
- on an enlarged scale the section VI of the base plate of the auxiliary harness according to
FIG. 3 ,
Mit 1 ist in der
Im eingebauten Zustand werden die Rinnenprofile 2,3 im Überlappungsbereich 1 mittels mindestens zwei Klemmverbindungen 8 zusammengehalten, die sich (siehe
Um beim Rauben eines Grubenausbaus die Klemmverbindungen 8 sicher lösen zu können, wird ein aus den
Das Hilfsgeschirr 19 weist zwei aus Rundstahl bestehende U-förmige Bügel 20 mit Stegen 21 und gekröpften Schenkeln 22 auf. Die Schenkel 22 besitzen endseitig Gewindeabschnitte 23, welche Bohrungen in sich strahlenförmig erstreckenden Schenkeln 24 einer kreuzförmig gestalteten Grundplatte 25 durchsetzen. Aufgrund der kreuzförmigen Ausbildung der Grundplatte 25 ergeben sich große umfangsseitige Aussparungen 26 und 27 (siehe insbesondere
Zur Lagesicherung der Grundplatte 25 an den Schenkeln 22 dienen Muttern 28, welche auf die Gewindeabschnitte 23 gedreht und mittels Splinte 29 gesichert werden.To secure the position of the
Innenseitig der Stege 21 der Bügel 20 befinden sich neben den Schenkeln 22 Distanzstücke 30, welche, wie insbesondere die
In der Grundplatte 25 ist mittig in einer Stufenbohrung 42 eine Hülse 31 festgelegt, beispielsweise eingelötet (
Außerdem lassen die
Zum Lösen der Klemmverbindungen 8 wird das Hilfsgeschirr 19 bei aus der Grundplatte 25 herausgedrehter Spindel 34 so im Bereich einer Klemmverbindung 8 angesetzt, dass die Bügel 20 mit den Stegen 21 einwandfrei über die hakenförmigen Abschnitte 10 der Oberlasche 9 und die Köpfe 18 der Spannschrauben 16 fassen. Das Hilfsgeschirr 19 hat dann die Konfiguration der
Nach dem Anlegen des Hilfsgeschirrs 19 können die Klemmverbindungen 8 gefahrlos gelöst werden, so dass nach dem Entlasten des Hilfsgeschirrs 19 die Rinnenprofile 2,3 problemlos geraubt werden können.After the application of the
- 1 -1 -
- Überlappungsbereich v. 2 u. 3Overlap area v. 2 and 3
- 2 -2 -
- umgreifendes Rinnenprofilencompassing gutter profile
- 3 -3 -
- einliegendes Rinnenprofilenclosed gutter profile
- 4 -4 -
- Steg v. 2 u. 3Bridge v. 2 and 3
- 5 -5 -
- Schenkel v. 2 u. 3Thighs v. 2 and 3
- 6 -6 -
- Flansche v. 2 u. 3Flanges v. 2 and 3
- 7 -7 -
- Hinterschneidungen an 6Undercuts at 6
- 8 -8th -
- Klemmverbindungen f. 2,3Clamp connections f. 2.3
- 9 -9 -
- Oberlasche v. 8Upper flap v. 8th
- 10 -10 -
- hakenförmige Abschnitte v. 9hook-shaped sections v. 9
- 11 -11 -
- Wulste v. 9Bulges v. 9
- 12 -12 -
- mittlerer Längenabschnitt v. 9middle section v. 9
- 13 -13 -
- Unterlasche v. 8Bottom flap v. 8th
- 14 -14 -
- Schenkel v. 13Thighs v. 13
- 15 -15 -
- Wulste an 13Beads on 13
- 16 -16 -
- Spannschrauben v. 8Clamping screws v. 8th
- 17 -17 -
- Muttern f. 16Nuts f. 16
- 18 -18 -
- Köpfe v. 16Heads v. 16
- 19 -19 -
- Hilfsgeschirrauxiliary dishes
- 20 -20 -
- Bügel v. 19Hanger v. 19
- 21 -21 -
- Stege v. 20Stege v. 20
- 22 -22 -
- Schenkel v. 20Thighs v. 20
- 23 -23 -
- Gewindeabschnitte an 22Thread sections on 22
- 24 -24 -
- Schenkel v. 25Thighs v. 25
- 25 -25 -
- Grundplatte v. 19Base plate v. 19
- 26 -26 -
- Aussparungen an 25Recesses at 25
- 27 -27 -
- Aussparungen an 25Recesses at 25
- 28 -28 -
- SplintmutternSplintmuttern
- 29 -29 -
- Splintecotter pins
- 30 -30 -
- Distanzstücke an 21Spacers at 21
- 31 -31 -
- Hülse in 25Sleeve in 25th
- 32 -32 -
- Innengewinde in 31Internal thread in 31
- 33 -33 -
- Kragen an 31Collar on 31
- 34 -34 -
- Spindelspindle
- 35 -35 -
- Mehrkant an 34Polygonal at 34
- 36 -36 -
- Teller an 34Plate at 34
- 37 -37 -
- Dorn an 36Thorn at 36
- 38 -38 -
- Zugfeder zw. 22Tension spring between 22
- 39 -39 -
- FeststellmutternLocking nuts
- 40 -40 -
- Steg v. 13Bridge v. 13
- 41 -41 -
- Stirnseite v. 36Front side v. 36
- 42 -42 -
- Stufenbohrung in 34Stepped bore in 34
Claims (6)
- Auxiliary harness (19) for releasing a clamp connection (8) for nesting groove profiles (2, 3) in subterranean pit construction, said clamp connection comprising two U-shaped brackets (20) resting on the enclosed groove profile (3), and an abutment (25, 34) that can be coupled to the brackets (20) and rests on the enclosing groove profile (2), the brackets (20) abutting at least indirectly with their crosspieces (21) on an upper link member (9) that engages with lateral hook-shaped portions (10) of the clamp connection (8) behind the enclosed groove profile (3), characterised in that the abutment (25, 34) is formed by a base plate (25) through which the legs (22) of the brackets (20) pass in such a way that it is relatively movable, and which can be secured using nuts (28, 39) to threaded portions (23) of the legs (22), and by a spindle (34) that is supported on the lower link member (13) of the clamp connection (8) that extends over the enclosing groove profile (2) and is rotatably mounted in the base plate (25), the legs (22) being cranked towards the spindle (34).
- Auxiliary harness according to claim 1, characterised in that a spike (37) is provided in the centre of the end face (41) of the spindle (34) located opposite the lower link member (13).
- Auxiliary harness according to claim 1 or 2, characterised in that the spindle (34) is rotatably mounted in a sleeve (31) secured in the base plate (25).
- Auxiliary harness according to claim 3, characterised in that a stepped bore (42) is provided in the base plate (25) and the sleeve (31) is provided with a surrounding collar (33).
- Auxiliary harness according to one of claims 1 to 4, characterised in that a polygon (35) is provided at the free end of the spindle (34).
- Auxiliary harness according to one of claims 1 to 5, characterised in that the base plate (25) is of cruciform configuration, wherein bores through which the legs (22) of the brackets (20) extend are provided at the ends of the legs (24) of the plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL11185797T PL2444589T3 (en) | 2010-10-20 | 2011-10-19 | Auxiliary harness for releasing a clamp connection for nesting groove profiles involved in subterranean pit construction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010048794A DE102010048794A1 (en) | 2010-10-20 | 2010-10-20 | Auxiliary harness for releasing a clamping connection for nested gutter profiles of the underground mine excavation |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2444589A2 EP2444589A2 (en) | 2012-04-25 |
EP2444589A3 EP2444589A3 (en) | 2013-02-13 |
EP2444589B1 true EP2444589B1 (en) | 2013-12-18 |
Family
ID=45317209
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11185797.5A Not-in-force EP2444589B1 (en) | 2010-10-20 | 2011-10-19 | Auxiliary harness for releasing a clamp connection for nesting groove profiles involved in subterranean pit construction |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2444589B1 (en) |
DE (1) | DE102010048794A1 (en) |
PL (1) | PL2444589T3 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PL238173B1 (en) * | 2017-10-31 | 2021-07-19 | Przed Produkcyjno Handlowo Uslugowe Witmet Spolka Z Ograniczona Odpowiedzialnoscia | Sliding blocking that increases loading capacity of the flexible joint made from trough profiles |
CN113152930B (en) * | 2021-05-10 | 2022-12-23 | 内蒙古陆海建设有限公司 | Vault supporting device and method for building construction |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1920407U (en) * | 1964-06-04 | 1965-07-29 | Erdoel Ag Steinkohlenbergwerk | DEVICE FOR REMOVING DIVISION |
US3797095A (en) * | 1972-06-01 | 1974-03-19 | D Benson | Bearing puller |
DE2254993C2 (en) | 1972-11-10 | 1974-01-17 | Bochumer Eisenhuette Heintzmann & Co, 4630 Bochum | Robbery fork for robbing pressurized structures - especially sliding arch support - in mine sections |
DE2322658C3 (en) | 1973-05-05 | 1978-06-29 | Bergbaustahl Gmbh & Co, 5800 Hagen | Device for assembling and robbing channel profiles of the route extension, especially in mining |
DE2504968C2 (en) * | 1975-02-06 | 1983-10-20 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Segment Rector |
DE3019314A1 (en) * | 1980-05-21 | 1981-11-26 | Müller GmbH Herne Pumpen-Maschinen-Stahlbau, 4690 Herne | Mine gallery segmented support system recovery harness - has piston rod end ball cup on arm hinged between hook and seat |
DE3044306A1 (en) * | 1980-11-25 | 1982-07-08 | Heinrich 4350 Recklinghausen Quante | Clamping connector for slide arch mine support sections - has offset side attachments for mounting loosening harness claws from inside |
US5170548A (en) * | 1991-08-26 | 1992-12-15 | Esaul Ramirez | Trailer wheel hub pulling device |
-
2010
- 2010-10-20 DE DE102010048794A patent/DE102010048794A1/en not_active Ceased
-
2011
- 2011-10-19 PL PL11185797T patent/PL2444589T3/en unknown
- 2011-10-19 EP EP11185797.5A patent/EP2444589B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
PL2444589T3 (en) | 2014-04-30 |
EP2444589A2 (en) | 2012-04-25 |
DE102010048794A1 (en) | 2012-04-26 |
EP2444589A3 (en) | 2013-02-13 |
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