DE911961C - Method and device for the moving expansion of mining struts - Google Patents

Description

Method and device for the migratory expansion of mining struts The invention relates to a method for migratory expansion fully mining strives, in particular long bumps, which provide the most favorable conditions in terms of relief created the work of stamping and shortening the time required for this, as a result, a considerable increase in the tusk performance is achieved. These Considerations are crucial, especially for the fast one Prevents long impacts when operating with mining machines, but also when not full mechanized cutting using the pick hammer or the like. Important.

A wandering expansion is already known in which two adjacent complete structures are connected to one another and work together in such a way that the a building after it is released moves along the other building that remains in place. However, this known expansion has the particular disadvantage of the eccentric load suspension, which makes it difficult to advance the building, especially when collapsing. Furthermore it is with wandering expansion using retractable advance iron known on the head of the pre-pawning iron to link an auxiliary stamp that when pulling the pre-pawning iron with this is moved forward in the charred field. Here, however, the Stamp always moved at the same time as the cap.

The invention eliminates the disadvantages of these known measures avoided and moreover other advantages in terms of creating a quick actionable, d. H. quickly traceable expansion achieved for the punch-free joint.

The new method works like known methods with preferable ones Vorpfändisen, on whose Head is hinged to an auxiliary punch when advancing the pre-pawning iron, it is advanced into the charred field with it is, and consists in its basic embodiment that with the pre-pawn iron together the one standing at its fracture end, preferably articulated with it connected end stamp, hanging on it, is pulled over after the new thrust, whereupon the auxiliary stamp on the head of the iron and the stamp on the fracture side are set again is, and now after the pressure relief of the other stamp or stamps, on the pre-pawn iron hung up, tracked along this and set again, whereupon the auxiliary stamp is folded up so that the joint is stamp-free and ready for use again.

According to a preferred embodiment of the pit lining for execution of the method according to the invention is the head of the auxiliary punch designed as a rolling head articulated and its lower end releasably attached to the pre-pawn iron, so that only the lock holding this end or the like. Needs to be released to the auxiliary ram to pivot down into the vertical position. By also using the Rolling head itself is longitudinally displaceable on the pledge, its use is for temporary support of the shell iron at any point allows what there are further advantages when implementing the entire dismantling.

Since the punch head of the auxiliary punch is under the hanging wall from the start remains and the stamp from the horizontal position in which it is advanced, gets into its correct vertical position simply by having the foot through Dead weight falls off as soon as the rear end of the stamp is removed from the pre-pledger is released, the stamp sets itself to a certain extent by itself. This is how it arises a considerable time saving, which benefits the loosening work on the coal.

Using the basic idea of the method explained above it is possible to do this by analogous application of the pilgrim step principle to the Implementation of the entire expansion.

The invention is explained in detail below with reference to the drawing described, of Fig. I shows the removal before and Fig. II after cutting; Fig. III illustrates the arrangement of the rolling head on the end punch standing on the fracture side; if necessary, the auxiliary stamp on the pre-pledging shell iron can also be used in the same way be articulated; Fig. IV shows the principle of the new in a schematic representation Expansion process.

As can be seen from Fig. I, the pre-pawn iron d rests on two stamps, the fracture-side a, the one with the pre-pawn iron d, preferably articulated, continuously is connected, and which can be displaced lengthways on the pre-pawn iron, for example on rollers Stamp b. The auxiliary punch c is with its head at the end of the coal joint Pre-pledging d articulated. Its rear end is in the unswiveled state held by a lock g on the deposit iron. With e is the arbitrarily trained Face conveyor and marked with f the coal face. The displacement of the stamp. b, optionally also of the auxiliary stamp c along the pre-pledger, is for example by the embodiment of deposit iron and punch head shown in Fig. III enables. According to this, the pre-pawn iron consists of the flanges facing each other U-irons, the lower flanges of which form the roller surfaces for the ones provided in the punch head Form roles.

In the pre-pledging field, the conveyor e is more or less close to the joint f. If the field is charred, then stamps a and b are depressurized, d. H. until lowered to its stop, and thereby released from the hanging wall and the pre-pawn iron d unrolling on the rollers of the stamp b advanced into the new field, with this at the same time the articulated to him fracture-side stamp a in the Position according to Fig. 1I is advanced. To facilitate the pulling of this stamp, can be an auxiliary device that attacks his foot and runs on rollers or wheels be used.

Now the auxiliary ram c, for example by releasing the locking by means of a blow of a hammer, swiveled down and brought into position c ", d. H. set at the new joint f '. This is the field for moving the conveyor now stamp-free, so that this as a whole or in parts without any hindrance can be implemented. As soon as this conversion has taken place, the one that has now been resolved Main stamp b, hanging on the cup iron, pushed forward and set in position b ', thereupon the auxiliary ram c folded up again and fixed in a horizontal position, whereupon the now stamp-free pile is ready for the next shift again.

The whole implementation of the expansion can, as for the expert from the The above explanations are readily apparent, without any interruption of the Promotion take place. It is useful to move the joint up and down Transfer column used, so that the Hauer himself up to that in a few seconds feasible setting of the pivotable punch c 'with the setting of the extension has nothing to do.

Figure IV shows this sequence of measures, i.e. H. the implementation the entire process in a schematic representation. The position is in fields z to 5 illustrated prior to decarburization. Field 7 shows the status after the slicing has taken place once with a hanging and then with a set auxiliary stamp. In field 8 to g is demonstrated how to fix difficulties rolling over the expansion as a result of the various overhangs of the weights over the roll point of the punch b could result. For this purpose, the head of the auxiliary punch c, like der-of the punch b on the cup iron d designed to be displaceable. This makes it possible to set the auxiliary punch provisionally before rolling over the extension and that Pre-pawn shells together with the stamp over the two it now to advance supporting punch b and c, whereupon the punch c again released and is advanced in position c '.

In the fields i i to 15 it is shown how after the conveyor has been turned over in position e 'the stamp is set in its new position b' by moving it to the fixed cup iron is pre-rolled (Fig. II). Now the auxiliary punch c can again be folded up, and the now stamp-free joint is ready for use again.

In the case of poor hanging walls, you can first use the known method the first, third, fifth, seventh and then the second, fourth, sixth, pay attention, etc. move stamp. In the case of used hanging walls or heavily pressurized mountains As is also known, you place two pledges next to each other, one after the other implemented. Here, too, is the formation of the shell iron and Stamp the same.

Claims (6)

PATENT CLAIMS: i. Procedure for the migratory expansion of mining struts by retractable pre-pawn irons, on the head of which an auxiliary stamp is hinged, the when advancing the pre-pawning iron, it is advanced into the charred field with it is characterized in that together with the by two or more stamps worn pre-pawn iron standing at its fracture-side end, preferably end stamp articulated with it, hanging from it, pulled over after the new thrust whereupon the auxiliary punch on the head of the iron and the punch on the fracture side again is set, and now, after the pressure has been relieved, the further stamp or stamps on Pre-pawn irons are hung up, tracked along this and set again, whereupon the auxiliary ram is folded up so that the joint is ram free and again is ready for sale. 2. The method according to claim i, characterized in that the am Slidably attached auxiliary stamps before the complete advance of the expansion is set provisionally and the pre-locking iron during the advancement supported in order to then be advanced on this into its position on the joint will. 3. Pit lining for carrying out the method according to claims i and 2, characterized in that one provided with a rolling head, on a pre-pawn iron Auxiliary stamp that can be moved longitudinally can be suspended from the pre-pawn iron in a horizontal position is to od by releasing a lock. Like. At its rear end in the to fold down the vertical position. 4. Apparatus according to claim 3, characterized in that that the main stamp standing on the fracture side with the pre-pawn iron, preferably articulated, is connected, however, the butt-side main stamp on the Vorpfändisen over his Rolling head is longitudinally displaceable. 5. Device according to claims 3 and 4, characterized characterized in that the rolling head is designed such that the punch both hanging on the pre-pawn iron like the pre-pawn iron supported on the die head is movable. 6. Device according to claims 3 to 5, characterized in that that the pre-pawn iron is made of double U-iron with the flanges facing each other and the inner edges of the flanges are the rolling surfaces for the rollers of the punch head form. Attached publications: German patent specifications No. 245 392, 714 182, 717059.