EP2444589B1 - Sangle auxiliaire destinée à desserrer une liaison de serrage pour profilés de fente installés les uns à l'intérieur des autres de la structure minière souterraine - Google Patents

Sangle auxiliaire destinée à desserrer une liaison de serrage pour profilés de fente installés les uns à l'intérieur des autres de la structure minière souterraine Download PDF

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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
Authority
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.)
Not-in-force
Application number
EP11185797.5A
Other languages
German (de)
English (en)
Other versions
EP2444589A2 (fr
EP2444589A3 (fr
Inventor
Franz-Josef Wunderlich
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.)
Bochumer Eisenhuette Heintzmann GmbH and Co KG
Original Assignee
Bochumer Eisenhuette Heintzmann 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 Bochumer Eisenhuette Heintzmann GmbH and Co KG filed Critical Bochumer Eisenhuette Heintzmann GmbH and Co KG
Priority to PL11185797T priority Critical patent/PL2444589T3/pl
Publication of EP2444589A2 publication Critical patent/EP2444589A2/fr
Publication of EP2444589A3 publication Critical patent/EP2444589A3/fr
Application granted granted Critical
Publication of EP2444589B1 publication Critical patent/EP2444589B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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.

Claims (6)

  1. Sangle auxiliaire (19) servant à desserrer un système d'assemblage par serrage (8) pour des profilés de rigole (2, 3), installés les uns dans les autres, pour le soutènement de mines souterraines, laquelle sangle présente deux étriers (20) en forme de U s'appuyant au niveau du profilé de rigole situé côté intérieur (3) et une butée (25, 34) pouvant être couplée aux étriers (20), s'appuyant au niveau du profilé de rigole situé côté extérieur (2), où les étriers (20) reposent par leurs traverses (21) au moins indirectement au niveau d'une bride supérieure (9), venant en prise par l'arrière avec le profilé de rigole situé côté intérieur (3) et dotée de sections (10) latérales présentant une forme de crochet, du système d'assemblage par serrage (8), caractérisée en ce que la butée (25, 34) est formée par une plaque de base (25) traversée de manière relativement mobile par les branches (22) des étriers (20) et pouvant être fixée au moyen d'écrous (28, 39) au niveau de sections filetées (23) des branches (22) ainsi que par une broche (34) logée de manière à pouvoir tourner dans la plaque de base (25) et s'appuyant au niveau de la bride inférieure (13), recouvrant le profilé de rigole situé côté extérieur (2), du système d'assemblage par serrage (8), où les branches (22) sont coudées en direction de la broche (34).
  2. Sangle auxiliaire selon la revendication 1, caractérisée en ce qu'un mandrin (37) est prévu au centre du côté frontal (41) de la broche (34), lequel fait face à la bride inférieure (13).
  3. Sangle auxiliaire selon la revendication 1 ou 2, caractérisée en ce que la broche (34) est logée de manière à pouvoir tourner dans une douille (31) fixée dans la plaque de base (25).
  4. Sangle auxiliaire selon la revendication 3, caractérisée en ce qu'un alésage à cran (42) est prévu dans la plaque de base (25), et en ce que la douille (31) est pourvue d'un col (33) périphérique.
  5. Sangle auxiliaire selon l'une quelconque des revendications 1 à 4, caractérisée en ce qu'un polygone (35) est prévu au niveau de l'extrémité libre de la broche (34).
  6. Sangle auxiliaire selon l'une quelconque des revendications 1 à 5, caractérisée en ce que la plaque de base (25) est configurée de manière à présenter une forme de croix, où des alésages traversés par les branches (22) des étriers (20) sont prévus côté extrémité des branches de plaque (24).
EP11185797.5A 2010-10-20 2011-10-19 Sangle auxiliaire destinée à desserrer une liaison de serrage pour profilés de fente installés les uns à l'intérieur des autres de la structure minière souterraine Not-in-force EP2444589B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11185797T PL2444589T3 (pl) 2010-10-20 2011-10-19 Zestaw pomocniczy do luzowania zaciskowego połączenia włożonych w siebie profili korytkowych podziemnej obudowy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010048794A DE102010048794A1 (de) 2010-10-20 2010-10-20 Hilfsgeschirr zum Lösen einer Klemmverbindung für ineinander liegende Rinnenprofile des untertägigen Grubenausbaus

Publications (3)

Publication Number Publication Date
EP2444589A2 EP2444589A2 (fr) 2012-04-25
EP2444589A3 EP2444589A3 (fr) 2013-02-13
EP2444589B1 true EP2444589B1 (fr) 2013-12-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP11185797.5A Not-in-force EP2444589B1 (fr) 2010-10-20 2011-10-19 Sangle auxiliaire destinée à desserrer une liaison de serrage pour profilés de fente installés les uns à l'intérieur des autres de la structure minière souterraine

Country Status (3)

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EP (1) EP2444589B1 (fr)
DE (1) DE102010048794A1 (fr)
PL (1) PL2444589T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL238173B1 (pl) * 2017-10-31 2021-07-19 Przed Produkcyjno Handlowo Uslugowe Witmet Spolka Z Ograniczona Odpowiedzialnoscia Blokada przesuwna złącza podatnego z kształtowników korytkowych
CN113152930B (zh) * 2021-05-10 2022-12-23 内蒙古陆海建设有限公司 一种建筑施工拱顶支撑装置及方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1920407U (de) * 1964-06-04 1965-07-29 Erdoel Ag Steinkohlenbergwerk Vorrichtung zum rauben von ausbauen.
US3797095A (en) * 1972-06-01 1974-03-19 D Benson Bearing puller
DE2254993C2 (de) 1972-11-10 1974-01-17 Bochumer Eisenhuette Heintzmann & Co, 4630 Bochum Raubgabel für das Rauben unter Druck stehender Baue - insbesondere des Gleitbogenausbaues - in Grubenstrecken
DE2322658C3 (de) 1973-05-05 1978-06-29 Bergbaustahl Gmbh & Co, 5800 Hagen Vorrichtung zum Montieren und zum Rauben von Rinnenprofilen des Streckenausbaus, insbesondere im Bergbau
DE2504968C2 (de) * 1975-02-06 1983-10-20 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Tübbingerektor
DE3019314A1 (de) * 1980-05-21 1981-11-26 Müller GmbH Herne Pumpen-Maschinen-Stahlbau, 4690 Herne Raubvorrichtung fuer den streckenausbau des untertagebetriebes aus sich ueberlappenden, mit spannverbindungen zusammengehaltenen ausbauprofilsegmenten
DE3044306A1 (de) * 1980-11-25 1982-07-08 Heinrich 4350 Recklinghausen Quante Spannverbindung und darauf abgestimmtes loesegeschirr
US5170548A (en) * 1991-08-26 1992-12-15 Esaul Ramirez Trailer wheel hub pulling device

Also Published As

Publication number Publication date
DE102010048794A1 (de) 2012-04-26
EP2444589A2 (fr) 2012-04-25
PL2444589T3 (pl) 2014-04-30
EP2444589A3 (fr) 2013-02-13

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