DE2200678C2 - Sole chisel assembly for a coal plow - Google Patents

Description

The invention relates to a sole chisel arrangement for a coal plow working in long-front construction, the one on a rail in front of the coal face • is slidably guided, wherein the sole chisel is pivotable by means of an actuating device about an approximately m lower region of the plane in longitudinal direction of the Kphlenstpßes extending tilting axis; When using coal planes, the problem arises in practice of keeping the plane in the cutting horizon, even on uneven surfaces, with hard coal and soft surfaces, and avoiding uncontrolled climbing or diving of the plane. Around

ίο influence the cutting horizon of the coal plow can, it is known to arrange the sole chisel vertically pivotable on the planer body so that they can be set in different swivel positions with the help of an adjusting device (DE-AS 12 39 258.

pE-AS U 58 920). In a known Sohfencheiß.el; The arrangement of the type mentioned above is the chisel carrier having the sole chisel around a axis running parallel to the coal face can be swiveled and via a toothed gear with a gear coupled, which is pivotably mounted on a boom arranged on the plow body (DE-AS 12 88 541). The plane is propped up the boom in the slot of the coal face, where he over the pivotable slotting tool so is controlled that it leads to the hanging wall and the planer guide is relieved of the weight of the planer The geared coupling of the sole chisel with the slotting tool makes one of the altitude of the Slot independent adjustment of the sole chisel not possible.

The object of the invention is to design a sole chisel arrangement of the type mentioned at the outset in such a way that that the controllability of the planer in the cutting horizon in adaptation to the respective operating conditions se is improved and the possibility is created to adjust the lying horizon exactly without being in the Lying disruptive step cuts result.

This object is achieved according to the invention in that the tilt axis of the sole chisel at the foot of the Sole chisel behind its cutting edge facing the lying person on the one facing the coal face Side of the plane is and the sole chisel by means of the adjusting device from a position in which his The cutting edge is roughly in the horizontal plane, in a tilt position is adjustable, in which its cutting edge at an angle to the lying plane upwards or is sloping down

In the sole chisel arrangement according to the invention, the tilt axis of the sole chisel is approximately in the

so level of the cutting edge arranged at the foot of the sole chisel and thus on the coal face facing side of the coal plane. The pivoting of the sole chisel around the deep tilt axis makes it possible to move the sole chisel in to bring different swivel positions and thus to precisely control the horizontal horizon of the plane without there are disruptive step cuts when lying down. Because the Solilen chisel is in the immediate vicinity its cutting edge, i.e. at the lying level, through the Tilt axis is supported, the tilt axis to the limit of the plane body on the coal joint side, a favorable power transmission is also achieved. This is achieved because the chisel is supported in the vicinity of the point where the high cutting forces appear. In addition, there is the advantage that, due to the low-lying tilt axis, there is a long one Leverage length or the like can be used, so that relatively for the pivoting of the sole chisel

low actuating forces are required.

It is sufficient to control the cutting horizon if the coal plane is only equipped with a single sole chisel, the one around the named one Tilting axis on the lower edge of the planer on the side of the cobble joint can be tilted in such a way that its in the direction of movement The effective cutting edge running across the plane can be chosen at an angle upwards, horizontally or at an angle is directed downwards

On the other hand, an arrangement can also be used realize, in which the coal plow has three sole chisels one behind the other in the planing direction, whereby the cutting edge of the sole chisel at the front in the planing direction is to the coal face rises towards, while the cutting edge of the middle sole chisel in the plane of the person lying or one the plane parallel to this and the cutting edge of the sole chisel located at the rear in the planing direction falls towards the coal face; the middle sole chisel And the last sole chisel is swiveled adjustable to an inoperative position around the above-mentioned tilt axis, e.g. with the help a screw spindle can be done.

In order to reduce the construction costs, the sole chisel arrangement can also be made so that in addition to the rigidly arranged sole chisel at the front in the planing direction, the cutting edge of which for Coal face rises diagonally, only one more sole chisel for the same direction of movement is provided, which can be set to either a sloping or a horizontal cut or else is pivotable to an inoperative position.

If separate sole chisels are provided for each direction of movement of the plane, it is advisable to to lift the sole chisels at the back from the coal face so that they do not rub unnecessarily cause and are not subject to premature wear. The sole chisels could also be designed in this way be that depending on the direction of movement of the coal plow once with one cutting edge and the other time run along the lying surface with a different cutting edge.

In addition to mechanical adjusting devices, hydraulic, find pneumatic or electrical adjusting devices use. There is also a remote-controlled one Adjustment of the sole chisel using top wire or wirelessly controllable receivers possible.

The invention is described below in connection with the exemplary embodiments shown in the drawing explained in more detail. It shows

Fi g. 1 shows a coal plane with an inventive Sole chisel arrangement in a view against the offset;

F i g. 2 to 4 the coal plane with the sole chisel arrangement according to FIG. 1 each in a cross section and in three different characteristic settings the sole chisel;

FIG. 5 shows a coal plane in the view of FIG with a modified sole chisel arrangement, with three sole chisels for each direction of movement of the plane are provided.

The coal plow according to FIGS.] To 4 is equipped at its ends with exchangeable loosening tools II in the usual way, which win in the coal face 13 by peeling during the planer uphill and downhill journey. Only sjni is needed to detach the coal on the lying 18 or to make the prone incision

Sole chisel 12 is provided. This sole chisel 12 can be tilted about a JCjppaehse 14 on the coal plane 10

stored. The tilt axis 14 runs parallel to the coal pile 13; it lies on the coal face Lower edge of coal plow 10, that is to say at the foot of sole chisel 12 and behind that of lying 18 facing cutting edge 19 of the sole chisel.

In the illustrated embodiment, the

ίο sole chisel 12 with a lever-like extension 15 provided, in a recess 16 on the coal face side of the coal plow 10 perpendicular to the Coal pile 13 is pivotable. The pivoting of the sole chisel 12 takes place, for. B. by means of one on the Lever extension 15 engaging screw spindle 17.

In the case of the FIGS. 1 and 2 setting of the Sole chisel 12 is the cutting edge 19 of the sole chisel facing the lying person 18 obliquely upwards directed. This has the consequence that the coal along the plane indicated by the dashed line 20 is detached, which forms an acute angle 21 with the lying 18. With this: setting the Sohien chisels 12 pushes Konieshobei iö with Back on the l'rei-cut surface 20 upwards.

The coal plow 10 accordingly performs a climbing movement.

It is different with the setting according to Fig.3. the Cutting edge 19 of sole chisel 12 lies in the plane of lying 18, so that the coal is more or is cut less precisely at the seam surface between the lying 18 and the coal seam.

In Figure 4, the sole chisel 12 is in a tilted position shown, in which its cutting edge 19 slopes down towards the coal face 13. In this setting, the Sole chisel 12 cut open a groove 23 in the horizontal 18, one boundary edge 24 of which is inclined downwards into the lying 18 and which forms an angle 25 with the lying 18 The In this case, coal plow 13 performs a plunge movement. By swiveling the soleplate cutter 12 about the axis 14 in the sense of a climbing movement (FIG. 2) or a diving movement (FIG. 4) can be the Control the coal plow so that the desired cutting horizon is achieved, even if the horizontal plane 18 is wavy is largely retained. It is also possible to compensate for hollows and bumps in the person lying down. In many cases it will be useful to use the sole chisel as a precaution when driving through a hollow 12 a slight inclination corresponding to FIG. 4,

so when driving over a saddle or the like, however, a slightly increasing setting accordingly Fig.2 to give, thus taking into account the operating forces that the coal plow in the trough to lift, while trying to push down when driving over a saddle, the result is the detachment of the Coal at all points more or less exactly at the level of the interface between the lying 13 and the Coal seam 13 takes place.

The storage of the coal chisel 12 at the point mentioned of the coal plow 10 can, for. B. can be achieved by arranged on both sides of the sole chisel arcuate bearing parts 12a, which are slidably guided in correspondingly formed grooves 10a of the lever body.

In the exemplary embodiments shown in FIGS the coal plow 10 has only a single adjustable sole chisel 12, which so is designed and arranged that r- in both

Direction of movement of the coal plow intersects. Instead, a separate sole chisel could also be provided for each planing direction. In In this case, the sole chisel not required in the planing direction is in an ineffective position panned.

In the exemplary embodiment according to FIG. 5, the coal plow 10 has three sole chisels 26a to 26c and 27a to 27c for each direction of movement. The two outermost sole chisels 26a and 27a, of which only one is effective in each direction of planing, can be fixedly arranged on the lifting body. These sole chisels 26a and 27a. which advance in the planing direction are designed and arranged so that their sole surface 28 is directed obliquely upwards. These sole chisels 26a and 27a are accordingly set in accordance with FIG. 2 in the sense of a climbing movement of the coal plow 10. Around the coal plane 13, however, more or less exactly at the level of the person lying down. 58 to hsltcn, the central sole chisel 266 or 276 following the leading chisel 26a or 27a is set so that it works with its cutting edge at the lying level, as indicated in FIG. 3 for the chisel 12 of the previous embodiment. While the leading sole chisel 26a or 27a initially leaves a coal wedge on the lying surface, the trailing sole chisel 266 or 276 has the task of

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to solve this coal wedge. If the planer is to be kept exactly in the horizontal position, the last sole chisel 26c resp. 27c be pivoted up into an inoperative position. This sole chisel 26c or 27c only then remains in its working position shown in the sense of a diving movement of the coal plow, if appropriate 4 a groove 23 cut into the lying 18 shall be.

During the movement of the coal plow 10 of FIG. 5 to the left in the plane of the drawing, the two sole chisels 11b and 27c are pivoted up into an inoperative position, while the sole chisel 27a is in the working position mentioned. The two trailing chisels 266, 26c and 27b, 27c are designed here so that they can each be brought into an inoperative position. The interaction of the sole chisel groups enables largely precise control of the cutting horizon of the coal plow 13 to be achieved

The adjustment of the coal chisels 266, 26c or 276, 27c can, as mentioned, in any way, be it from Hand by means of mechanical adjusting devices, such as screw spindles or the like, or be it by means of hydraulic, pneumatic or electrical actuating devices. There is also a remote control possible using a receiver that can be controlled via wire or wireless.

1 sheet of drawings

Claims (6)

Patent claims: j. Sole chisel arrangement for a coal plane working in Ungfrontbau, which is working on his the rail lying on the coal pile is slidably guided, the Soblenmejßel by means of an adjusting device by an approximately in the lower region of the Pane is pivotable in the longitudinal direction of the coal face extending tilt axis, characterized in that the tilt axis (14) of the Sole chisel (12,26,27) at the foot of the sole chisel behind its facing the recumbent (18) The cutting edge (19) is located on the side of the plane facing the coal face and the sole chisel by means of the adjusting device (15, 17) from one Position in which its cutting edge (19) is approximately in the lying plane, in a tilting position is adjustable, in which its cutting edge (19) at an angle to the lying plane upwards or is sloping down 2. Sole chisel arrangement according to claim 1, characterized in that the coal plane with only a single sole chisel (12) is equipped, the tilt axis (14) of which on the coal face (13) facing lower edge of the coal plane 3. Sole chisel arrangement according to claim 1, characterized in that three sole chisels (26a, b, c 27a, b, c) are provided one behind the other on the coal plane (10) in its direction of movement, the cutting edge (19) facing the lying person (18) of the Sole chisel (26a, 27a) lying in front in the planing direction rises towards the coal pile (13), while the cutting edge (19) of the middle sole chisel (266, JIb) lies in the plane of the lying person (18) or a plane parallel to it and the cutting edge (1 (T of the sole chisel (26c; 27c) located at the rear in the planing direction of travel sloping towards the coal face, the middle ground chisel (26b, 27c) being divisible into an inoperative position by tilting about the tilting axis (14). 4. Sole chisel arrangement according to claim 3, characterized in that in the case of a plurality of sole chisels (26, 27) arranged one behind the other, the adjustable sole chisels (26b, 26c, 276, 27c), for. B. are adjustable by means of a screw spindle (17). 5. sole chisel arrangement according to one of claims 1 to 4, characterized in that as Adjusting device for the sole chisel or chisels (12, 26, 27) hydraulic, pneumatic or electric Adjusting devices are provided, the adjusting functions of which can be controlled by overhead wire or wirelessly Recipients can be triggered. 6. Sole chisel arrangement according to one of the preceding claims, characterized in that that on the coal plane (10) next to the front in the direction of planing rigidly arranged Sole chisel, the cutting edge of which rises diagonally towards the coal face (13), just one more Sole chisel is provided for the same direction of movement, optionally on a sloping one or a horizontal cut can be set or can also be pivoted into an inoperative position.