DE6902441U - THREE-FRAME TENSIONING FOR STEPPING STRUCTURAL STRUCTURE WITH AN OFFSET CLADDING AT ITS OFFSET SIDE STAMPS - Google Patents

Description

46> 0 Hem ·,

Freillgrathstraee 19

P.O. Box 140

Pat-Anw. Hemnann-Trantepolil

Telephone: S0930 515 62

Telogram address: Bahrpatent · Herne Telex 08 229 85J

l.-lng. Sl. H. Bahr Dipl.-Phys. Eduard Betzier Dlpl.-lng. W. Herrmann-Trenfepohl

PATENT LAWYERS

~ l

SOOO MUndien 2S.

Elienacher Strasse 17 Pat-Anw. IeIxIOl

Telephone: 398011 398012 39 8013

Telegrammantchrlft: Babetzpot Munich Telex 05 245 «2

Bank accounts:

Bayrische Vereinsbank Munich 952287 Dresdner Bank AG Herne 20243 « Pottscheckkonto Dortmund 55868

^Ret - ^: A 20 023 X / Yes

Please indicate in the answer Please send a letter to:

Herne

Jan. 22, 158S

Klöckner-Werke AG, 41 Duisburg

"Three-frame team for advancing longwall mining with an offset covering attached to its stamps on the offset side "

Pie innovation concerns a three-frame team for the striding Longwall construction with an offset covering attached to its offset-side stamps, which consists of a particular U-shaped screen is made.

Such screens, curved in a U-shape in particular, replace the wire meshes, papers or wires that were previously used in longwall mining as offset screens, because the lifespan of such screens is too short, so that they are replaced too often with the high rate of mining progress made possible by hydraulic longwall mining would have to be. However, the screens, which are often bent from sheet metal, must be attached on the one hand so that the expansion can proceed;

let it last.

There is already a two-frame combination known, the two hinged sheets as Offset cladding used. Such offset coverings are due to their mobility given by the hinges particularly easily exposed to the risk of damage in the event of gross misalignment. The one next to it also known offset coverings consisting of U-shaped metal sheets do not yet allow j, the space ζ = 'between two or more combined to form a team Reliably shield the frame against misalignment. This is why backfill gets into this space and becomes blocked there the striding movement slightly. There is also the risk that the usually arranged between the frame Walking devices, especially the walking cylinders, may be damaged.

The dewing creates a three-frame team for the striding longwall construction, which is provided with a Versatzabkleiäung, which shields the entire team and thus also the spaces between the frames forming it against the ingress of backfill material in all stepping phases. f

According to the basic idea of hiring, this is achieved by that the U-shaped curved screen is only attached to the two outer frames and encloses all three frames.

When walking, the middle frame is first pushed forward, which in the shooter of the offset lining remaining at the break edge happens, which is attached to the two outer frames. As soon as these outer frames are tightened, the screen moves up to the offset-side stamp of the middle frame that has already been moved. Therefore can the screen neither the striding of the outer, nor the screaming

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hinder the inner frame. The offset fairing in the face opens, otherwise only between two successive ones Three-frame carriages, but not between the frames of a carriage. As a result, no ; penetrate into the three-frame harness.

Suitably, the innovation is realized so that the rear cap member, as known per se, be angled downwards, in the extended condition of the frame cancel a \ corresponds to the cap member tangent plane, f whose incidence the angle of slope of the displacement material, shaped U-the web of the Screen meets. This makes it possible to keep the height of the U-shaped curved screen relatively low and thereby not only save material and weight, but also keep the offset accessible.

The details of the innovation are described below using several embodiments for better understanding;

show it

Pig. 1 in side view and partially in section, a first embodiment of the novel according to the offset section

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Pig. 2 shows a plan view of a three-frame combination the offset shield in section,

Pig. 3 shows a modified embodiment of the innovation in

essential in the pig. 1 corresponding representation,

Pig. 4 in the Pig. 2 shows the offset shielding after Pig. 3,

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Figure 5 is a view of the Pig article. 4 seen from the offset side,

Pig. 6 in the Pig. 3 a further embodiment of the innovation corresponding to the illustration,

Pig. 7 in the Pig. 4 according to the illustration after Pig. 6 and

Pig. 8 shows the embodiment in the illustration corresponding to Pig »5 the innovation according to the Pig. 6 and 7.

The three-frame combinations shown in the drawings exist from frames A, B, C with offset-side stamps A1, B1, G1, base rails A2, B2, G2 and hanging end caps A3, B3, 03

In the exemplary embodiments according to Figures 1 to 5, the offset-side hanging end caps are designed in a certain way, which is to be explained in more detail using the example of hanging end cap B3. The offset facing end 5 of this cap 'is angled down, so that at β the upper apex dec angle is formed, which includes the angled end 5 with the straight front part 6 of the cap. At the top of the angle the inclined upward running edge and shown in dashed lines is formed. / Yes end of the part? 5 of the cap creates the offset slope. She gets into Pig. 1 reproduced by a dash-dotted line, which in turn denotes the plane tangent to the end of the part 5 , the incidence of which corresponds to the angle of repose of the material to be set.

■ 1Π ■ ■ V / M /

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On the stamps on the offset side is in the exemplary embodiments According to Figures 1 to 5, a U-shaped bent sheet is attached. The plate is designed so that between its paddles 9 and 10, the three xlaliinen A, B, C forming the team. The paddles 9 and 10 are otherwise at 11 and 12 to the stamps A1, Cl of the two outer frames A, C attached.

The three-frame combination has offset-side traverses 13 and 14, which are arranged one above the other and connect the two stamps on the offset side of the outer frames A, G to one another. These frames move at the same time as you step, while the middle frame moves first. The trusses 13 and 14 are in approaches 15 and 16, which are provided with recesses 17 for this purpose. Approaches 15 and 16 are attached to the side of the web 18 of the U-shaped plate 8.

In addition, the U-shaped screen has a lower vertical one extending section 19, a central section 20 inclined obliquely upwards and forwards into the open longwall space and a more sloping upper end region 21.

While the offset covering in the exemplary embodiment according to FIGS. 1 and 2 consists of a U-shaped bent sheet metal, the embodiment shown in FIGS. This sheet metal box is provided with reinforcements 24 pointing into the offset, in order to give it the necessary rigidity. A linkage is attached to the caps A3 to U'j isx, as is particularly shown in the example of the cap A3 in Pig. ' -J 24, to which is attached a curtain made of individual rods 25. The rods can also be tubular. The rods are telescopic.

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copically in the opening of the offset lining forming Umbrella led. When the canopy is lowered, they retract into the canopy and become the Stamp pulled out of the opening again.

This basic principle is also implemented in the embodiment according to FIGS. Here, however, exists the screen from a rear and not U-shaped Construction 30. This construction is only along the back of the three-frame combination of frames A, B, G. It consists of a plurality of tubes 31. However, the caps in turn carry a rod 32 on which rods or Pipes 33 are attached. The tubes 33 have a smaller cross-section than the tubes 31 and are telescopic in FIG out these pipes.

In the embodiment of Figures 6 to 8, fastening means are only on the two outer frames for the Curtain is provided from the tubes 33 and denoted by 34 and 35, respectively.

The embodiments shown in Figures 3 to 5 on the one hand and in FIGS. 6 to 8 on the other hand, can be used with and without angled caps.

Protection claims:

6SO 2441

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Claims (7)

Protection claims ι / ' 1. For the striding longwall construction, they used a replacement covering, which can be attached to its offset-side stamps and which consists of a particularly U-shaped screen, characterized in that the U-shaped screen (8) is only attached to the "two outer frames ( A, C) is attached and encloses all of the frames. 2. Three-frame combination according to claim 1, characterized in that the rear cap ends (5) j are angled downward as known per se, wherein in the extended state the frame ram (A1, B1, C1) has a plane tangent to the cap ends (i ¹ ) , the incidence of which corresponds to the slope angle of the material to be backfilled meets the web (iS) of the ü-xosaigen screen. 3. Three-frame combination according to claim 1, and optionally claim 2, characterized by attachments (15, 16) with recesses (17) for receiving one or more of the outer frames of the combination with one another on the inside of the web (18) of the misshapen screen (8) connecting crossbars (13, 14) I and by further fastening means (12) on the inside of the flanges of the U-shaped screen for the offset-side stamp of the outer frame of the team. 4. three-frame team according to claim 1, marked is characterized by an ar. the caps of the Frame attached and up to the U-shaped screen reaching curtain (25, 33), which is telescopic in the screen - - 8th - is led. 5. Three-frame combination according to claim 4, characterized in that the screen is an open top sheet metal box (23) and the curtain consists of a plurality of rods which are attached to the caps and hang in the opening of the sheet metal box. 6. Three-frame combination according to claim 1 and one or more of the following claims, characterized in that the sheet metal box open at the top is provided with reinforcements (24 ¹ ) pointing into the offset. 7. Three-frame combination according to claim 1 and one or more of the following claims, characterized in that the screen consists of a plurality of tubes (31) covering the rear of the combination consists, in the rods (33) one on the caps angs = ■ brought in the curtain are inserted telescopically.