EP0091980B1 - Sabot de chapeau de sécurité - Google Patents

Sabot de chapeau de sécurité Download PDF

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Publication number
EP0091980B1
EP0091980B1 EP82103303A EP82103303A EP0091980B1 EP 0091980 B1 EP0091980 B1 EP 0091980B1 EP 82103303 A EP82103303 A EP 82103303A EP 82103303 A EP82103303 A EP 82103303A EP 0091980 B1 EP0091980 B1 EP 0091980B1
Authority
EP
European Patent Office
Prior art keywords
roof member
prop
support plate
section
connection stay
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
EP82103303A
Other languages
German (de)
English (en)
Other versions
EP0091980A2 (fr
EP0091980A3 (en
Inventor
Herbert Erdmann
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.)
Lorenz Polygon Ausbau GmbH
Original Assignee
Lorenz Polygon Ausbau 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 Lorenz Polygon Ausbau GmbH filed Critical Lorenz Polygon Ausbau GmbH
Priority to DE8282103303T priority Critical patent/DE3279085D1/de
Priority to EP82103303A priority patent/EP0091980B1/fr
Priority to AT82103303T priority patent/ATE37741T1/de
Publication of EP0091980A2 publication Critical patent/EP0091980A2/fr
Publication of EP0091980A3 publication Critical patent/EP0091980A3/de
Application granted granted Critical
Publication of EP0091980B1 publication Critical patent/EP0091980B1/fr
Expired legal-status Critical Current

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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
    • E21D11/34—Joints between vertical props and horizontal top bars
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00—Caps for supporting mine roofs
    • E21D17/10—Details of mine caps for engaging the tops of pit-props, with or without retaining-plates; Retaining-plates

Definitions

  • the invention relates to a safety cap shoe for door sections of track construction in mining and tunnel construction consisting of steel profile segments, in which each door block stamp is displaced inward behind the end face of the cap assigned to it and with its cap-side end under a support plate between these one-piece bearing plates for a punch connecting pin which penetrates them is arranged and cooperates with a cap connecting bolt, for which a bearing block formed in one piece with it is formed above the support plate, rolling surfaces for pivoting movements around one of the bolts preferably being formed on the support plate.
  • the invention relates to the route expansion z. B. in coal mining, where the caps of the door frames usually consist of I- or rail profiles for reasons of cheaper and simpler and either one-piece stamps also from I-profiles or multi-part, resilient stamps made of so-called channel profiles, i.e. profiles that can be inserted into each other, are used. In the latter case, it also happens that the cap consists in one piece of a channel profile section.
  • Safety cut shoes differ from the previously used cut shoes in their ability to prevent the caps supported by the stamps from tipping over.
  • the improvement in safety lies in the fact that when torsion stresses occur on the door frame cap or its profile, it can no longer slide off the cap shoe and / or the stamp supported in this way, so that in these cases the door frame cannot collapse. In principle, this can be achieved with the help of the cap connecting bolt, which is held in a correspondingly designed bearing block of the cap shoe and interacts with the stamp connecting bolt, which passes through the stamp and the bearing plates and thereby blocks the stamp with the shoe.
  • a safety cap shoe (DE-A-2 915 782) of this type is known which consists of two parts, i.e. H. is divided in half in its longitudinal direction.
  • the safety in the case of torsional stresses on the caps is achieved with lugs arranged on each half of the cap shoe, which protrude inward beyond the end face of the cap and form contact surfaces for the cap web, but are also penetrated by the cap connecting bolt.
  • the security against slipping along the cap profile, in particular under the influence of the impact pressures discussed above, is achieved by at least one bolt which overlaps the relevant end face of the cap and which simultaneously holds the two halves of the cap together.
  • the rolling surfaces are each formed in a throat, which is formed by the support plate and the projections mentioned.
  • Such a kappschuh is extremely versatile in the manner described and, because of its symmetrical structure, also does not cause any problems in providing the necessary construction material.
  • due to its multi-part nature it requires a large number of screws, which not only complicates the assembly, but can also increase the technical effort to such an extent that the overall economic advantage of door frame removal over more complicated types or shapes is thereby questioned or completely lost can.
  • cut shoes are out of the question for newer forms of door frame removal.
  • the invention is based on a safety cap shoe which is also known (GB-A-1 259 182). It is made in three parts because it consists of the support plate and the two jaws, which are clamped to the cap profile using the cap connection bolt.
  • the intended U-shape of the jaws creates a frictional connection.
  • a rib is formed on the upper flange of the U-profile of each jaw in order to bring about a comparatively large specific surface loading of the lower flange, but on the other hand to bring about a tilting movement of the jaw around the supporting surface of the rib when the cap is loaded, which brings about a further increased adhesion by clamping .
  • the safety cap shoe is therefore only non-positively attached to the lower flange of the cap, which impairs safety against slipping. Furthermore, it cannot be prevented that the cut shoe is pivoted when the stamp is placed. That is why it is difficult to maintain the desired miter. Because it depends on the one hand on the degree of pivoting of the jaws around the ribs, and on the other hand also on the degree of angular adjustment that is set by rotating the support plate around the cap connecting bolt.
  • the invention has for its object to simplify the known as a Kappschuh and to maintain its security properties so that it the setting of the door frame stamp at a distance from the associated end face of the cap with the desired miter, i.e. safe with the required form fit.
  • the toothing enables both jaws to be positively attached to the flanges of the cap.
  • the toothing enables the miter angle to be determined at the point at which the cap shoe is to sit on the cap, which is done in such a way that rotation is only possible around the cap connecting bolt, but rotations of the jaws on the cap are excluded.
  • the teeth serve on the one hand to bring about a positive connection, which replaces the previous frictional connection, while on the other hand it fixes the jaws against angular rotation, which enables the required miter to be maintained.
  • a stage hole 3 in which a push stamp 4 is located is excluded in the sole 1 of a section generally designated 2.
  • the route joint is formed by a coal joint 6a running at right angles to the base 1 and to the slope 5.
  • the cap of a door frame 6 consists of an I-section section 7 (FIG. 3). Accordingly, the profile has a profile flange 8 facing the hanging wall 5, a profile web 9 and a lower flange 10. The lower flange 10 is supported by the stamp 4.
  • the plunger 4 in turn consists of two channel profile sections 11, 12 which are placed one inside the other with their mutually facing ends and form an overlap 14 which are held together with clamping connections 15, 16 which are known per se and are therefore not shown in detail. They allow a yield in the overlap 14 when a certain pressure is exceeded on the face of the stamp, whereby the overlap 14 is increased accordingly.
  • the channel profile is shown generally at 17 in FIG. 1.
  • the cap shoe - apart from a cap connection bolt 20 with a hexagon head 21 and hexagon nut 22 (FIG. 3) and a plunger connection bolt 23 (FIG. 1) of the bolt 20 of corresponding design - has three parts.
  • the main piece has a support plate 25, on the underside 26 of which the end face 27 of the stamp 4 can be supported.
  • a center support 35 is arranged between the two support plates, which has a support surface 36 for the bottom 37 of the channel profile 17.
  • a bearing block 32 is formed on the upper side of the support plate 25 and has a cylindrical recess 38 for receiving the cap connecting bolt 20.
  • rolling surfaces 39, 40 are recessed on the upper side of the support plate 25, which according to the embodiment according to FIG. 4 are conical surfaces. They correspond to rolling surfaces which are each formed on the cone shells 41, 42 of a hub 43, 44, which are formed in one piece with a jaw 45 or 46.
  • the hubs have recesses 47, 48 corresponding to the recess 38 and can therefore be threaded onto the cap connecting bolt 20 in the manner shown in FIG. 3.
  • the tapered surfaces 41, 42 converge towards the bearing block 32.
  • the upper part is generally U-shaped.
  • the lower, longer web 50 of the upper part, generally designated 51, is longer than the upper U-profile web 52.
  • a toothing 54 is attached on the inside of the U-profile flange 53.
  • the tips and the adjoining tooth flanks are rounded. These curves merge into the curves of the tooth gaps 56.
  • the longitudinal edges 57, 58 of the lower flange 10 of the door frame cap 6 have semicircular recesses 59 and 60, which are arranged at such a distance from one another that teeth 61 and 62 with flattened tooth tips 63 are formed fit into the recesses 56.
  • the rounded teeth 55 fit into the recesses 59 and 60 of the cap.
  • the middle piece is first fastened to the support plate 25 by attaching the punch connection bolt on the end face of the punch 4 in the manner shown in FIG. 1. Then the stamp can make no relative movements relative to the support plate 25. The stamp is then placed in the prepared stage hole 3, whereupon the two jaws 45, 46 are placed on the lower flange 10 in such a way that the serrations fit into one another. Then the cap connecting bolt 20 can be inserted through the aligned recesses 47, 48 and 38 and fixed in the manner shown in FIG. By attaching its nut 22 to the spindle part of the bolt. So that the Kappschuh 18 and thus the stamp 4 connected to it is fully assembled.
  • the interlocking teeth bring about a positive connection, which is maintained with the cap connection bolt 20 and results in a non-slip fixing.
  • the miter of the punch 4 can be adjusted by choosing the location of the Kappschuh 18 or its jaws 45, 46. When the cap 6 yields, the miter increases. Here, the support plate 25 pivots about the axis 65 of the cap connecting bolt 20, but the jaws 45, 46 do not join in.
  • the bearing block 32 accordingly forms the middle section of a receiving channel, generally designated 66, for the lower flange 10 of the cap profile, while on each jaw there is an edge 67 or 68 of the channel sole and the channel wall 69, 69a adjoining it are trained.
  • the channel is open on both sides, on which the adjustability of the miter of the stamp 4 is based.
  • the support plate 25 is formed in one piece and carries the rolling surfaces 39, 40 on its upper side for rotations around the cap connecting bolt 20.
  • the embodiment according to FIGS. 8 to 8 does not differ from this.
  • the support plate 70 is also made in one piece in this embodiment and forms the sole 71 of the channel 72 of the underside of the cap, which in this case is from the bottom 37 and the adjoining inner parts of the two legs 30, 31 of the Channel profile section 73 is formed with which the door cap 6 is realized in the embodiment of FIGS. 5 to 8.
  • the flanges 74, 75 of the channel profile 73 are, as is customary in these cases, assigned to the hanging part 5.
  • the cap connecting bolt 20 passes through mutually aligned bores 76 which are made in the profile legs 30, 31 of the door frame cap 6. They are therefore located at a location which is arranged in the region of the neutral fiber for bending the cap, so that the bores 76 do not result in any significant loss of strength in the cap.
  • the bearing block 77 is in two parts in this case. It forms the two channel walls 78, 79 and therefore a structural unit with these. These channel walls in turn have recesses 80, 81 in which the cap connecting bolt 20 is received and also have inwardly projecting ribs 82, 83, 84 on which contact surfaces are provided for the outside of the profile flanges.
  • a recess 85 in the channel base serves to receive a rounded profile base provided in some channel profiles. In these so-called floor-supported channel profiles, the recess 85 in the channel base 71 therefore supports the profile, while the curved contact surfaces on the ribs 82-84 support the so-called flange-supported one shown in FIG. 1 and already described in connection with the stamp 4 according to FIG Channel profile can be used. In this way it is possible to cope with different profile shapes and different profile weights with the same shoe.
  • the underside of the support plate 70 carries, as in the embodiment according to FIG. 4, the parts 28, 29 and 35, 36 described there for the stamp 4 and the stamp connection bolt 23.
  • the slip resistance is based on the positive locking of the cap connecting bolt 20 with the cutouts 80 and 81.
  • the rolling surfaces are formed on the upper sides 86 and 87 of the channel edges for rotations around the cap connecting bolt 20.
  • the pivoting movements which are possible as a result result from the positions of the door frame cap 6 on the rolling surface 87 which are shown in dash-dot lines, which is shown in FIG. 6.
  • the opening between the two legs 30, 31 of a channel profile which can be seen in particular from the illustration in FIG. 8, is used in particular directly below the flanges 74, 75 for the pivoting movement of the stamp 4.
  • the support plate 90 which forms the channel base 91 with the two channel walls 92, 93, which in turn form a structural unit with the bearing block, as in the exemplary embodiment according to FIGS. 5-8, rolling surfaces 94, 95 on the underside of the support plate 90 for rotations around the punch connection pin 23.
  • the stamp connection pin is inserted on the one hand through recesses 96, 97 of the jaws 98, 99, which are in one piece with the support plate 90, and passes through the legs 30 and 31 of the channel profile provided with holes, from which the two sections 11 and 12 of the stamp 4, as shown in FIG 1 are composed. Between the two rolling surfaces is the support 35, which in turn is formed in one piece with the support plate 90.
  • the stamp can be moved from its miter position at 100, in which its end face 101 is supported on the rolling surfaces 94, 95, even into a vertical position, as at 102 shown, spend with appropriate deformation of the door frame, without causing overloads. It is then supported with its end face 101 on the flat surface section 103 of the support plate 90, which adjoins the rolling surfaces 94, 95,

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Door And Window Frames Mounted To Openings (AREA)
  • Emergency Lowering Means (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Road Signs Or Road Markings (AREA)
  • Pens And Brushes (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Claims (5)

1. Système de voie de fixation d'un cadre de porte, pour la construction d'une galerie de mine ou d'un tunnel, comportant un chapeau en acier profilé (6), un étançon mobile en acier profilé (4), adapté à être mis en place en arrière de la face antérieure du chapeau, et un sabot de sécurité (18) reliant les profilés en acier du chapeau (6) et l'étançon (4), ce sabot (18) comportant une plaque d'appui (25) pourvue de plaquettes d'articulation (28, 29) qui font corps avec cette plaque pour venir de part et d'autre de l'étançon en acier profilé (4), et qui présentent des trous (30) pour le passage d'un boulon de fixation (23) qui traverse le profilé en acier de l'étançon (4); la plaque d'appui (25) comportant, en outre, une chape d'articulation (32), qui fait corps avec cette plaque pour le passage d'un boulon (20) qui relie l'étançon (4) au chapeau (6), cette chape (32) présentant sur ses deux côtés des faces de pivotement (39, 40) pour des faces de pivotement correspondantes (41, 42) des corps (43, 44) des deux mors (45, 46), enfilés sur le boulon de liaison (20) associé au hapeau (6) et adaptés à saisir une semelle inférieure (10) du profilé du chapeau (6); caractérisé en ce que les bords longitudinaux (57, 58) de la semelle inférieure (10) du profilé du chapeau (6) présentent des échancrures (59, 60) de forme sensiblement semi-circulaire, et en ce que les lèvres profilées en U (53) de chaque mors de serrage (45, 46) présentent des cavités arrondies (56) et des bossages adjacents (55) de forme arrondie, ainsi que des bouts pointus arrondis; les mors (45, 46) étant ainsi adaptés à être mis en place contre la semelle inférieure (10) du profilé du chapeau (6), pour y être fixés par serrage au moyen du boulon de liaison (20) associé au chapeau (6), de manière à réaliser une fixation verrouillée géométriquement grâce aux dentures engagées l'une dans l'autre, afin de bloquer en place les mors (45, 46), en les empêchant de tourner lorsque la plaque d'appui (25) pivote par rapport à l'axe (65) du boulon de liaison (20) associé au chapeau (6).
2. Système de voie de fixation d'un cadre de porte, pour la construction d'une galerie de mine ou d'un tunnel, comportant un chapeau en acier profilé (6), un étançon mobile en acier profilé (4), adapté à être mis en place en arrière de la face antérieure du chapeau, et un sabot de sécurité (18), associé au chapeau et reliant les profilés en acier du chapeau (6) et l'étançon (4), ce sabot (18) comportant une plaque d'appui (70, 90) pourvue de plaquettes d'articulation (28, 29, 98, 99) qui font corps avec cette plaque, pour venir de part et d'autre de l'étançon en acier profilé (4), et qui présentent des trous (96, 97) pour le passage d'un boulon de liaison (23) qui traverse le profilé en acier du poinçon (4), constituant un bloc d'articulation pourvu de deux parois (78, 79) adaptées à venir de part et d'autre de deux parties correspondantes (30, 31) du profilé en acier (73) du chapeau (6), les deux parois présentant des trous (80, 81) pour le passage d'un boulon (20) qui les traverse, des faces de pivotement (86, 87; 94, 95) étant prévues pour permettre les mouvements de rotation de l'étançon (4) par rapport au chapeau (6); caractérisé en ce que l'ensemble formé par la plaque d'appui (70, 90) et les parois (78, 79, 92, 93) du bloc d'articulation (77) constitue une pièce unitaire en forme de canal, dont la plaque d'appui est la semelle, alors que le boulon qui traverse les parois du bloc d'articulation (77) sert d'élément de liaison (20) à travers l'âme (30, 31) du chapeau (6), les faces d'articulation (86, 87, 94, 95) étant prévues pour permettre des mouvements autour du boulon de liaison (20) associé au chapeau (6), ou par rapport au boulon de liaison (23) associé à l'étançon (4).
3. Système de voie de fixation d'un cadre de porte conforme à la revendication 2, caractérisé en ce que les faces d'articulation (86, 87) prévues pour permettre les mouvements par rapport au boulon de liaison (20) associé au chapeau (6) sont disposées du côté de la face supérieure de la plaque d'appui (70), entre les parois (78, 79) du passage en forme de canal.
4. Système de voie conforme à l'une des revendications 2 ou 3, caractérisé en ce que les faces de pivotement (94, 95) prévues pour permettre les mouvements de rotation par rapport au boulon de liaison (23) associé à l'étançon (4) sont disposées du côté de la face inférieure de la plaque d'appui (90), entre les plaquettes d'articulation (98, 99).
5. Système de voie de fixation d'un cadre de porte conforme à l'une des revendications 2 à 4, caractérisé en ce que les faces de pivotement (94, 95) réalisées du côté de la face inférieure de la plaque d'appui (90) se raccordent à une face plane (103) destinée à servir d'appui à la face de la tête (101) de l'étançon (4).
EP82103303A 1982-04-20 1982-04-20 Sabot de chapeau de sécurité Expired EP0091980B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE8282103303T DE3279085D1 (en) 1982-04-20 1982-04-20 Safety-cap bracket
EP82103303A EP0091980B1 (fr) 1982-04-20 1982-04-20 Sabot de chapeau de sécurité
AT82103303T ATE37741T1 (de) 1982-04-20 1982-04-20 Sicherheitskappschuh.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP82103303A EP0091980B1 (fr) 1982-04-20 1982-04-20 Sabot de chapeau de sécurité

Publications (3)

Publication Number Publication Date
EP0091980A2 EP0091980A2 (fr) 1983-10-26
EP0091980A3 EP0091980A3 (en) 1985-10-30
EP0091980B1 true EP0091980B1 (fr) 1988-10-05

Family

ID=8188997

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82103303A Expired EP0091980B1 (fr) 1982-04-20 1982-04-20 Sabot de chapeau de sécurité

Country Status (3)

Country Link
EP (1) EP0091980B1 (fr)
AT (1) ATE37741T1 (fr)
DE (1) DE3279085D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110500114A (zh) * 2019-07-29 2019-11-26 何满潮 挡矸系统、挡矸装置及其进行巷道支护的方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1259182A (fr) * 1968-03-28 1972-01-05
DE2112111A1 (de) * 1971-03-13 1972-10-05 Rheinstahl Ag Verbinder zum Festlegen der Kappe an den sie unterstuetzenden Stempeln bei tuerstockartigen Ausbaurahmen
FR2405421A3 (fr) * 1977-10-07 1979-05-04 Charbonnages De France Dispositif d'appui a deux degres de liberte angulaire
DE2915782A1 (de) * 1979-04-19 1980-10-30 Lorenz Polygon Ausbau Gmbh Sicherheitskappschuh fuer den tuerstockausbau aus stahlprofilen im untertagebetrieb

Also Published As

Publication number Publication date
EP0091980A2 (fr) 1983-10-26
EP0091980A3 (en) 1985-10-30
DE3279085D1 (en) 1988-11-10
ATE37741T1 (de) 1988-10-15

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