DE6604867U - DEVICE FOR HANGING DISPENSING PIPES, IN PARTICULAR BLOWER PIPES, ON THE RETRACTING CAPS OF UNITS OF THE WALKING STREAM CONSTRUCTION. - Google Patents

Description

Telephone: 5 09 30 ^ a-3 Km- 38 S012

515 62 _N , 5, ₀ , j «, Dipl.-Ing. W. Kerrmann-Trentep ^ hi "ao"

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Bahrpatente Heme PATENTANWÄLTE Babetapal Münden

Telex 08 229 853 Telex 05 245 62

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Bayrische Verelnsbank Munich S622S7

Re .: B 73 914 / 5d (rbm Dresdner Baut AG Hema 202 «6 · Postscheckkonto Dortmund 553 68

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Ref .: _{A 19} 262 X / running.

Please state the answer

Please send a letter to:

December 8, 1969

Mining Association GirfbH., 43 Essen-Kray, Frillendorf er Str.

"Device for hanging up offset lines, in particular blow offset lines on the inquiring caps of units of the wandering longwall house "

The innovation "relates to a hanging of offset, in particular Blow offset lines on the protruding caps of Device used for moving longwall mining units with a trolley that is movable on a guide, whose cantilevered length is greater than a step size when hiking the expansion and a flexible traction means, in particular carries a chain to attach the cable,

Such devices make it possible to move sufficiently wide fields, because the possibility of movement without uncoupling of the individual pipes working blow line de.s multiple, about twice, the step size of the wandering Longwall construction makes up. On the other hand, the suspensions must be designed so that they do not bend the expect a practically rigid offset line.

One of the devices presumed to be known at the beginning,?; (DAS 1 153 707) provides for the traction device to be placed directly around the I pipes of the line so that the pipes are in a \

\ Pulling device loop lie. When stepping individual units

The longwall mining is relieved at these points of the suspensions, which lead to an overload · Beard suspensions and at the same time to a "Puroh bending the cables because of their own weight. This can cause damage and destruction. It is also not ruled out that the striding of the wandering longwall mining through the essentially at the same height remaining offset line is obstructed because the migrating units are not lowered enough can.

A suspension is also known (DBGM 1 783 215), at which the traction means, designed as a chain, is guided over a roller at the cantilevered end of the cap and the offset line rests in a traction device loop. This makes it possible to adjust the height of the offset line. This must but always done by hand and therefore does not solve the above-mentioned difficulties with migrating longwall mining.

The job of inflation is to find a solution to this Difficulties to be found, which is particularly urgent, especially in the case of offset processes that do not require the end coupling Work pipes of a blown backfill line and with the side discharge of the backfill material from the line.

The main idea behind the innovation is that between the trolley, the line and the traction means a Spring for automatic height adjustment and a device for arbitrary, in particular hand-carried out Change of the loaded traction device length switched on

660486Z

In this device, the spring in the suspension of an expansion unit, which is relieved of the load to walk, ensures that that the traction mechanism remains taut when reloading the expansion unit to assume its correct position. Pie springs of the neighboring suspensions lead to one even distribution of the additional loads on both sides of the fully or partially relieved suspension subsequent devices. In order to achieve this success, it requires the correct setting of the traction device to about same initial loads. This is done using the arbitrarily adjustable device for setting the loaded Length of the traction device, which also offers the possibility of major changes occurring during operation, such as fluctuations in thickness balance.

The result is that damage to the essentially rigid line is prevented and the proper line Stepping movements of the extension are not disturbed.

The arbitrary and in particular manually operable device for changing the loaded traction device length exists in the simplest way from interchangeable traction element lengths, in the case of chains from divisible chain links. In the case of larger systems, however, it can also be a matter of attaching a sprocket with a standard reduction to be attached to the trolley in a self-locking manner and to adjust the sprocket with the help of a handle.

The device after the inflation is preferably with means for advancing the trolley on its guide. According to the new version, this consists of a hydraulic or pneumatic thrust piston gear,

660480.7

which acts on the trolley via a flexible traction device, which is led like a pulley block. This has the advantage that the extended and retracted length of the piston mechanism less than the total displacement path of the trolley on its guide turns out to be.

Käcnxölgenä an example embodiment of the innovation is explained; show it:

Fig. 1 shows the suspension according to the innovation for a blow offset line with side discharge on a hydraulic extension frame and

Fig. 2 is a view of the protruding cap of the extension frame from underneath.

The offset-side punch 1 of a unit of the traveling longwall construction is shown in Fig. 1 together with its cap 2, which has a protruding end 3. A Blasversatzleitung 4 has devices which the lateral Enable discharge of the backfill. In principle, these devices consist of a spacer 5 pivotable pipe sections. It refers to a straight connecting pipe section 6, which is shown in FIG. 1 in its state not pivoted into the line is, and a pipe bend 7, which is pivoted into the line, so that the backfill laterally out of the Line emerges in a beam 8 and impinges on the offset slope 9.

The suspension takes place at regular intervals along the pipe 4, so that a majority of the following in detail devices described interacts with one another.

Each device "has a trolley 10, the Dei the illustrated Embodiment is very simple because it is only a sliding sleeve here, for the trolley is provided with a guide 11 which, in the case of the exemplary embodiment shown, consists of a rod, on which the sleeve 10 can slide. The ends of the rod 11 are with corresponding holders 12 and 13 on the The underside of the cantilevered length 3 of the cap 2 is attached. The protruding length of the rod 11 is otherwise ") a multiple, for example double, the step size when changing the expansion. As a result, the expansion proceeds several times before the line 4 is moved forward, and it it is possible to move correspondingly wide fields.

On the trolley 10 is a flexible traction means - in the embodiment a chain 14 - connected to attach the line 4 to the trolley 10.

In detail it is provided to the trolley 10 first to attach a device 15 with which the loaded length of the chain 14 arbitrarily and in particular by hand can be adjusted. In the case of the exemplary embodiment, this device consists of a device mounted in a housing 16 Chain wheel which is self-locking with the aid of a reduction gear and rotates via a polygonal projection 17 can be.

The other end of the chain 14 sits in a sleeve 18 laid and therefore not visible in Fig. 1 spring, which at is connected to line 4.

To move the trolley 10 between the device days 12 and 13 formed stops on the slide rod 11 is a hydraulic or pneumatic push

piston gear 15 (see. Fig. 2). The cylinder 16 of the gearbox is on the underside of the cantilevered length 3 the cap 2 attached. The free end of the piston rod is forked at 17 and takes a roller 18 rotatably.

A flexible traction means 13 rüent to connect the trolley 10 with the thrust piston gear 15 and is guided like a pulley block. One end of the traction means 18 is set at 19, i.e. attached to the cap in the exemplary embodiment. (^ That attached via roll 18 and another to the cap Roll 20 guided traction means is fixed with its other end on the trolley 10.

The pulley-like leadership of the traction device has a reduction in size of the total forces in the gear 15 and a considerably smaller extended length of the gear 15 for Result than that would be required per se to move the trolley 10 along the guide 11.

The main advantage of those described in detail above and in the figures reproduced device is that it overloads the essentially rigid displacement line

** Tool 4 when walking and relocating the moving longwall mining prevented, but also enables the expansion to proceed properly.

Protection claims

Claims (3)

Protection claims 1 _{# A} device with a trolley, which is movable on a guide, whose protruding length is greater than a step width when moving the support, and a flexible traction means, in particular, is used to hang up offset ducts, in particular Blasversatzleiirungen, on the cantilevered caps of units of the wandering longwall construction carries a chain for attaching the line, dadur ch gekenngei ^ hnet that between the trolley (10), the line (4) and the traction means (14) a spring (at 18) for automatic height compensation and a device for arbitrary, in particular of Manually feasible change of the loaded traction device length is switched on. 2. Device not claim 1, characterized / characterized that one end of the traction means is guided over a self-locking sprocket, which with the help of a Reduction gear is adjustable. 3. Apparatus according to claim 1 and optionally claim 2, with means for moving the trolley forward on their leadership, marked by a hydraulic or pneumatic push-piston gear (15) »which is attached to the trolley (10) via a flexible traction mechanism (18) acts, which is guided like a pulley block (Fig. 2).