EP0023619B1 - Dispositif de serrage en deux parties - Google Patents

Dispositif de serrage en deux parties Download PDF

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Publication number
EP0023619B1
EP0023619B1 EP80104082A EP80104082A EP0023619B1 EP 0023619 B1 EP0023619 B1 EP 0023619B1 EP 80104082 A EP80104082 A EP 80104082A EP 80104082 A EP80104082 A EP 80104082A EP 0023619 B1 EP0023619 B1 EP 0023619B1
Authority
EP
European Patent Office
Prior art keywords
clamp
side lining
face
lining profile
parts
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.)
Expired
Application number
EP80104082A
Other languages
German (de)
English (en)
Other versions
EP0023619A1 (fr
Inventor
Hans Werner Dr Dipl.-Volkswirt Vom Felde
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.)
Hoesch AG
Original Assignee
Hoesch AG
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 Hoesch AG filed Critical Hoesch AG
Priority to AT80104082T priority Critical patent/ATE9831T1/de
Publication of EP0023619A1 publication Critical patent/EP0023619A1/fr
Application granted granted Critical
Publication of EP0023619B1 publication Critical patent/EP0023619B1/fr
Expired legal-status Critical Current

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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
    • E21D11/22—Clamps or other yieldable means for interconnecting adjacent arch members either rigidly, or allowing arch member parts to slide when subjected to excessive pressure

Definitions

  • the invention relates to a pair of clamping connections for mutually lying, mutually supporting ends of trough-shaped pit support frames, the clamping connections of which have the track-side expansion profile, under which the half-clamps rest against the flanges, the flanges of which are penetrated by the shanks of hook-head screws, the hook heads of which flanges of the butt-side expansion profile on the ends of which clamping nuts are screwed, which are supported on the sides of the flanges of the half clamps facing away from the butt-side expansion profile, the tensioning connections assigned to the end of the butt-side expansion profile having a bridging tab which provides a passage opening for the hook heads of the screws of this tensioning connection is equipped with a driver assigned to the expansion profile on the impact side, and on the half-clamp of the clamping connection assigned to the end of the expansion profile on the track side A driver is provided, which is assigned to the route-side expansion profile.
  • a pair of clamping connections of the aforementioned type is known from DE-PS 2 547 407.
  • Two clamping connections are provided at an overlap point, which are arranged at a distance from one another.
  • the segments of multi-part expansion frames made of channel profiles are under very high tension in the overlap areas due to insertion, etc. These voltages must be absorbed by the connections.
  • the segments of such expansion arches must, for. B. in the transitional area strut / line or when robbing the arches from each other.
  • the tension connection which is assigned to the end face of the butt-side expansion profile, is subjected to strong tensions, while the tension connection, which is assigned to the end face of the track-side profile, is less loaded.
  • a pair of forces is formed on a small lever arm with a tensile force component on the clamping connection which is assigned to the end face of the butt profile and with a compressive force component on the connection, which is assigned to the end face of the track-side expansion profile. Therefore, when the connections are removed, the connections assigned to the end face of the track-side profiles are first released. This can be done safely.
  • a robbery device which has a two-part robbery fork which is pivotably mounted in a traverse.
  • a hydraulic cylinder with a bayonet lock can be used in the traverse.
  • the tensioning connection is released, the robbery fork is placed on the tab of the tensioning connection, while the piston of the hydraulic cylinder is supported on the route side on the half-clamp of the connection.
  • the tension connection is relieved, so that the nuts can be safely removed from the screws.
  • this known robbery device has the disadvantage that the robbery fork cannot be easily placed on the butt-side flap if warping material and rock pressed into the track do not allow this.
  • the robbery device has a comparatively high weight and the application of hydraulic pressure to the cylinder requires a relatively long time, so that its handling is difficult, which often leads to the robbery fork not being used, but this is associated with considerable dangers.
  • a sliding, multi-part tensioning connection is known for the nested ends of gutter profiles of pit expansion frames that are supported flat against one another.
  • This has a half-clamp that grips under the extension profile on the track side and a strap that bridges the extension profile on the butt end.
  • Half-clamp and bracket are penetrated by the shafts of cylindrical fastening screws, on the ends of which clamping nuts are screwed, which are supported on the sides of the flanges of the half-clamps facing away from the butt-side expansion profile.
  • the half clamp is of split design and its parts are releasably connected to one another in the areas of their division by means of screw bolts with screwed-on nuts.
  • the same double wedges are provided between the half-shells and the flanges of the section profile on both sides, while these can also be omitted in a further embodiment.
  • the purpose of this tensioning connection is to provide a sliding connection for expansion frames, which enables the user to change the set pageant during operation, either to avoid that the pressure effects exerted on the frame cause an excessive narrowing of the cross-section of the stud or result in deformation of its components, or in order to adapt the resistance of the connections to the stresses to which they are exposed without having to remove them during operation.
  • the invention has for its object to improve a pair of clamping connections of the type mentioned in such a way that this enables a safe release of the clamping connections without the use of special aids.
  • this is achieved in that at least the half-clamp of the clamping connection assigned to the end of the butt-side expansion profile consists of two parts which are detachably connected to one another in the areas of their contact surface, the contours of the half-clamps and track-side expansion profile touching and the passage openings in the tab are shaped such that, by loosening the two parts, a spreading movement of hook-head screws and half-clamp parts takes place, which enables a friction-restricted and limited slipping of the extension profile on the route side.
  • This configuration ensures that the parts of the half-clamp gap after the connection between them has been loosened under the effect of the tension between the mutually lying ends of the track-side and butt-side expansion profile, the hook-head screws pivoting and the parts of the half-clip sliding upwards on the track-side expansion profile, whereby a not inconsiderable braking effect is achieved by the shape of the parts and, if applicable, their abutment (warping, rock).
  • the junction of the two parts of the half-clamp is easily accessible, so that it can be loosened without being hindered by rocks or warpage.
  • a special robbery device is no longer required, but only a tool to release the connection of the two half-clamp parts, which can be carried out in a simple manner.
  • the half-clamp is advantageously divided in half, so that both parts are identical and can be produced with the same tool.
  • the subdivision is located in the central area of the floor of the track-side expansion profile, which is easily accessible.
  • the parts of the half clamp in the areas of their division have mutually associated, stepped division surfaces which engage in one another in a form-fitting manner.
  • the parts of the half clamp are equipped in the areas of their division with protruding, mutually organized approaches that serve to attach the fastener or fasteners.
  • the lugs can be flange-shaped and can be provided with through openings aligned with one another, into which one or more fastening means connecting the parts of the half clamp are inserted.
  • Heavy-duty locking pins, screw bolts, eye bolts, etc., which can be secured by split pins, snap rings, etc., can serve as fastening means in this embodiment.
  • the fasteners can be released from the secured area by pressing, pulling, blowing up, etc. the fasteners.
  • the entrainment of the hook screws has an approximately eyeglass-shaped outline, the two outer parts of which are arranged in a plane parallel to the plane of the central part, support surfaces for the hook head screws being provided in the recesses of the tab, which are in the central longitudinal axis of the recesses in the edge areas of the tabs merge into the edges of the recesses.
  • This design of the tabs entails that after loosening the fasteners of the two parts of the half-clamp the hook-head screws can perform a pivoting movement, the free ends of their heads pushing further into the inner profile and their ends provided with the screws being opened both parts of the half clamp swing away from the expansion profiles.
  • the expansion profile facing the mountains is referred to as the impact-side expansion profile 1 and lies in the overlapping track-side expansion profile 2.
  • the two profiles are congruent and are supported on one another in the area near the ground and on the webs generally designated 3 and 4. At their ends, the webs 3, 4 merge into the flanges 5 and 6.
  • the profiles are connected using the two clamping connections A and B.
  • the tension connection A is assigned to the end face 7 of the butt-side expansion profile 1, while the tension connection B is assigned to the end face 8 of the track-side profile 2.
  • the tensioning connection A has a half-clamp 9 which grips under the extension profile 2 on the stretch side and a strap 10 bridging the extension profile 1 on the impact side.
  • Half-clamp 9 and strap 10 are penetrated by the shafts of the fastening screws 11, which are designed as hook-head screws.
  • Clamping nuts 12 are screwed onto the ends of the fastening screws 11, which are supported on the sides of the flanges 13 of the half-clamp 9 facing away from the butt-side expansion profile 1.
  • the flanges 13 of the half clamp 9 rest on the undersides of the flanges 6 of the track-side expansion profile 2.
  • the flanges 13 of the half clamp 9 and the outer regions of the tab 10 are provided with through openings, through which the fastening screws 11 pass.
  • the effect of the drivers 14 of the half clamp 9 'of the clamping connection B corresponds to that of the driver 15 of the tab 10 of the clamping connection A, which bears against the end face 7 of the expansion profile 1 on the impact side.
  • connection according to the invention can be seen from FIGS. 3 to 9. Thereafter, the half-clamp 9 is divided, exactly half, so that the two identical parts 16 result. In the area of their dividing surface 17, the parts 16 are provided with a step 18, which results in a positive connection in each direction of the half-clamp 9. The step 18 does not have to run in a straight line so that identical half-clamp halves are provided.
  • the parts 16 of the half-clamp 9 are equipped in the areas of their division 17 with projecting, mutually associated lugs 19 which serve to connect the two parts 16 to one another.
  • the projecting lugs 19 are flange-like and are provided with aligned through openings 20, into which a fastener connecting the parts 16 is inserted, for. B. an eyebolt, which is not shown in detail.
  • the projecting projections 19 are shaped such that they form a columnar or tubular body, the cross section of which is approximately rectangular in the exemplary embodiment shown. At their lower edges, the lugs 19 have beads which complement one another to form a closed ring 21.
  • the approaches 19 are of a fastener, not shown, for. B. a clamp-shaped ring or the like., Gripped so that the two parts 16 of the half-clamp 9 are connected to each other.
  • FIG. 10 and 11 show the structure of the tab 10, which has an approximately eyeglass-shaped outline, so that a central bow-shaped section 22 can be distinguished from the two adjacent outer areas 23, 24.
  • the bow-shaped section 22 lies in the main plane of the tab 10, while the outer regions 23, 24 are arranged in a plane parallel to the plane of the bow-shaped section 22, as can be seen in FIG. 11.
  • recesses 25, 26 are provided which are penetrated by the shafts and head regions of the fastening screws 11.
  • support surfaces 27 are provided for the fastening screws, which merge into the edges of the recesses 25, 26 in the central longitudinal axis 28 of the recesses 25, 26 in the outer regions 23, 24 of the tab, i. H. run with these. This configuration of the support surfaces 27 gives the possibility of a pivoting movement for the fastening screws 11, as is explained in detail below with reference to FIG. 12.
  • the tension connection A gapes apart and assumes the position shown in FIG.
  • the fastening screws 11 perform a pivoting movement, the hook-shaped parts of which move further into the interior of the butt-side expansion profile 1, while the ends of the fastening screws 11 are pivoted away from the expansion profiles 1.
  • the nested ends of the expansion profiles 1, 2 stand out from each other while reducing their tension, so that there is a space between them.
  • tensioning connection A according to the invention can be brought in the divided state for days, where it may need to be checked and disassembled the construction of the individual parts can be prepared for a new underground use.
  • the loosening of the fastener can be done from a secured field, with the possibility of equipping the connection point of the two parts 16 with a collecting basket, net or the like, so that one under tension of the nested ends of the expansion profiles, for example after loosening ejected bolt or the like can be caught.

Claims (9)

1. Paire de moyens de bridage pour extrémités de cadres de soutènement minier mutuellement emboîtées et surfaciquement appuyées l'une sur l'autre, dont les moyens de bridage (A, B) présentent des demi-colliers qui passent sous le profilé de soutènement (2) situé côté galerie et s'appliquent contre les ailes (6) de celui-ci, et dont les ailes (13) sont traversées par les tiges de vis (11) à tête en forme de crochet passant par dessus les ailes (5) du profilé de soutènement situé côté paroi, des écrous de serrage (12) étant vissés sur les extrémités desdites vis et s'appuyant sur le côté des ailes (13) des demi-colliers (9, 9') non tourné vers le profilé de soutènement (1) situé côté paroi, les moyens de bridage (A) conjugués à l'extrémité du profilé de soutènement (1) situé côté paroi présentant une éclisse (10) qui passe sur celui-ci et qui est munie d'ouvertures de passage (25, 26), une pour chacune des têtes en forme de crochet des vis (11) de ces moyens de bridage (A), ainsi que d'un tenon (15) conjugué au profilé de soutènement situé côté paroi, un tenon (14) conjugué au profilé de soutènement (2) situé côté galerie étant prévu sur le demi-collier (9') des moyens de bridage (B) qui sont conjugués à l'extrémité du profilé de soutènement (2) situé côté galerie, caractérisé en ce qu'au moins le demi-collier (9) des moyens de bridage (A) conjugués à l'extrémité du profilé de soutènement situé côté paroi est constitué de deux parties (16) qui, dans les régions de leur surface de contact (17), sont amovi- blement liées l'une à l'autre, les contours de contact réciproque des demi-colliers (9) et du profilé de soutènement (2) situé côté galerie et les ouvertures de passage (25, 26) dans l'éclisse (10) étant formés de façon telle qu'il se produise, sous l'effet du relâchement des deux parties (16), un mouvement d'écartement des vis (11) à tête en forme de crochet et des parties de demi-collier (16), autorisant un glissement limité, gêné par frottement, du profilé de soutènement situé côté galerie.
2. Paire de moyens de bridage selon la revendication 1, caractérisé en ce que le demi-collier (9) est subdivisé en deux moitiés.
3. Paire de moyens de bridage selon la revendication 1 ou 2, caractérisé en ce que les parties (16) du demi-collier (9) présentent, dans les régions de leur surface de contact (17), des gradins mutuellement conjugués (18) qui s'engagent l'un dans l'autre avec conjugaison de formes.
4. Paire de moyens de bridage selon la revendication 1, ou selon l'une des revendications précédentes, caractérisé en ce que les parties (16) du demi-collier (9) sont pourvues, dans les régions de leur surface de contact (17), d'appendices (19) formant saillie et mutuellement conjugués.
5. Paire de moyens de bridage selon la revendication 4, caractérisé en ce que les appendices (19) sont réalisés en forme d'aile et sont munis d'ouvertures de passage (20) alignées l'une sur l'autre, dans lesquelles sont introduits un ou plusieurs moyens de fixation assemblant l'une à l'autre les parties (16) du demi-collier (9).
6. Paire de moyens de bridage selon la revendication 4, caractérisé en ce que les appendices (19) des deux parties (16) sont formés de façon à constituer un corps en forme de collonne ou de tube.
7. Paire de moyens de bridage selon la revendication 6, caractérisé en ce que les appendices (19) présentent, en leurs bords inférieurs, des bourrelets qui se complètent en un anneau fermé (21).
8. Paire de moyens de bridage selon la revendication 6 ou 7, caractérisé en ce qu'un ou plusieurs moyens de fixation passent sous les appendices (19).
9. Paire de moyens de bridage selon la revendication 1, ou selon l'une des revendications précédentes, caractérisé en ce que l'éclisse (10) possède, vue en plan, un contour en forme de lunettes dont les deux régions extérieures (23, 24) sont disposées dans un plan parallèle au plan de la portion en forme d'étrier (22), et en ce que, dans les ajours (25, 26) des éclisses (10), il est prévu, pour les têtes des vis de fixation (11), des surfaces d'appui (27) qui se raccordent aux bords de ces ajours (25, 26), cela dans les régions (23, 24) des bords de l'éclisse (10), sur l'axe longitudinal médian (28) desdits ajours (25, 26).
EP80104082A 1979-08-03 1980-07-15 Dispositif de serrage en deux parties Expired EP0023619B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80104082T ATE9831T1 (de) 1979-08-03 1980-07-15 Spannverbindungspaar.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2931502A DE2931502C2 (de) 1979-08-03 1979-08-03 Mehrteilige Spannverbindung für rinnenförmige Streckenausbauprofile
DE2931502 1979-08-03

Publications (2)

Publication Number Publication Date
EP0023619A1 EP0023619A1 (fr) 1981-02-11
EP0023619B1 true EP0023619B1 (fr) 1984-10-10

Family

ID=6077532

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80104082A Expired EP0023619B1 (fr) 1979-08-03 1980-07-15 Dispositif de serrage en deux parties

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EP (1) EP0023619B1 (fr)
AT (1) ATE9831T1 (fr)
DE (1) DE2931502C2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3320126C2 (de) * 1983-06-03 1986-01-23 Klöckner-Werke AG, 4100 Duisburg Vorrichtung zum reibungsschlüssigen, nachgiebigen Verbinden benachbarter Segmente von aus Rinnenprofilen bestehenden Ausbaubögen des Streckenausbaues im Bergbau sowie im Tunnel-, Stollen- und U-Bahnbau
DE19507623C2 (de) * 1995-03-04 1997-04-30 Krupp Ag Hoesch Krupp Spannverbindung zum nachgiebigen Verspannen von Grubenausbaurahmen

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2547407C3 (de) * 1975-10-23 1978-09-14 Bergbaustahl Gmbh & Co, 5800 Hagen Spannverbindung für die ineinanderliegenden Enden bodenabgestützter Rinnenprofile von Grubenausbaurahmen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE955583C (de) * 1942-07-07 1957-01-03 Bochumer Eisen Heintzmann Verbindung fuer den Gleitbogenausbau von Grubenstrecken, insbesondere fuer geflanschte Rinenprofile
US3583674A (en) * 1968-03-21 1971-06-08 Super Mold Corp Tire inspection apparatus
DE2501281C2 (de) * 1975-01-15 1977-05-05 Ruhrkohle Ag, 4300 Essen Nachgiebiger Streckenausbaubogen aus Stahlprofilsegmenten
DE2515166C2 (de) * 1975-04-08 1977-05-18 Bergbaustahl Gmbh & Co Spannverbindung fuer ineinander liegende enden bodenabgestuetzter rinnenprofile von grubenausbaurahmen
DE7908369U1 (de) * 1979-03-24 1979-06-28 Bochumer Eisenhuette Heintzmann Gmbh & Co, 4630 Bochum Aufhaengevorrichtung fuer die haengende anbringung bzw. verlegung von bergbauzubehoer in gruben- oder tunnelstrecken

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2547407C3 (de) * 1975-10-23 1978-09-14 Bergbaustahl Gmbh & Co, 5800 Hagen Spannverbindung für die ineinanderliegenden Enden bodenabgestützter Rinnenprofile von Grubenausbaurahmen

Also Published As

Publication number Publication date
DE2931502B1 (de) 1981-02-12
EP0023619A1 (fr) 1981-02-11
ATE9831T1 (de) 1984-10-15
DE2931502C2 (de) 1981-10-22

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