DE2615816C2 - Material deflector for a face conveyor - Google Patents

Description

The invention relates to a material deflector for a face conveyor, on which one in the long front construction used and movable along a mining face extraction machine with a face conveyor under the sword plate is guided during the movement along the face conveyor the individual Trough sections of the face conveyor lifts from the lying, with between the underside of the Form raised gutter sections and the recumbent free space.

It is known that such an extraction device, for example from a sword plane and a chain scraper conveyor, conveyed goods, especially fine coal from the mining front over the »Hobelgasse« under the conveyor of the extraction facility. Under the influence of the dismantling The moving sword plate of the sword plane arises in front of the sword plate when viewed in the direction of the plane a wedge of the conveyed goods that uncontrollably lifts the conveyor and the chain return run of the conveyor can or at least block the conveyed goods pushed into the lower chain channel of the conveyor leads to disadvantageous contamination of the lower chain channel.

In order to avoid the aforementioned disadvantageous condition at the said extraction device, according to DE-GM 7108 807 known, on the end face of the sword plate, the end face of which is sloping The clearing surface is formed, on the working face side one standing at an acute angle to the planing direction To arrange clearing bar interchangeably in order to get under the conveyor from the working face side Goods to be conveyed back into the Hobelgasse, d. H. to mine back towards the mine face,

Here, however, it has been found to be a disadvantage that the wear on the clearing surfaces is great and the Wear size, on which the functionality of the clearing surface depends during use, only It is difficult to determine because the actual wear per unit of time (service life) of the clearing surfaces varies depending on the nature of the person lying down.

25th

It is therefore the object of the invention to provide a conveyor-good deflector of the type mentioned at the beginning create that avoids the known disadvantages and slides on the lying

The object of the invention is achieved in that the one with the mining machine and its attachments connected conveyed goods deflectors between the underside of the lifted channel sections and the Lying free spaces formed on the mining joint side are closed. This is used to drive the mining machine an energy-saving rejection of the conveyed goods from these free spaces is achieved, as the driving resistance of the conveyed goods deflector is smaller when sliding on the lying surface than when clearing the same is the case

In order to achieve an effective fine material barrier even on uneven surfaces, the conveyor material deflector forms according to the invention a wall-like barrier and is movable in the vertical plane on the mining machine or their attachments are attached or their attachment parts can be pivoted about a horizontal axis. The conveyed goods deflector is expedient here resiliently pressed against the lying position, preferably by means of spring pressure

In order to prevent the conveyed goods deflector from penetrating into the lying position and to ensure the sliding function of the To maintain the conveyed good deflector even with large amounts of conveyed goods in the Hobelgasse is after a Another feature of the invention is the conveyor deflector each assigned an end stop limiting the vertical movements downwards and / or upwards

In a further embodiment of the invention, the material deflector consists of two of the extraction machines upstream and downstream vertical plates, which are roughly on the side wall of the conveyor on the excavation face and with their facing plate ends on the cut limiter of the mining machine are pivotally attached, such that the facing away from each other plate ends of the Fördergutabweiser each with a directed against the lying extension from the underside of the raised gutter sections, the lying and the front edges of the sword plate formed free spaces close. The two plate ends facing away from each other are each supported by a leaf spring in Direction applied to the lying and the two facing plate ends each have a Bearing eye attached by a horizontal to the cutting limiter of the mining machine Bearing bolt is penetrated.

In this way, an exact closing off of the individual free space is achieved in the case of uneven surfaces, since both Plates are independent of one another in their locking movement.

This means that the conveyor deflector is as flat as possible for use with small Seam thicknesses are achieved, according to a further feature of the invention, the leaf spring with an approximately central upward curvature and both spring ends Hegen each an upper side of the plates, one end of the spring being attached to the plate and the leaf spring in its Curvature apex on a fixed above the leaf spring on the cut limiter and at the same time as upper end stop formed bolt is supported in such a way that the other spring end of the leaf spring under Bias on the top of the plate is slidably pressed Here, the bottom of the plate Over parts of its length a stop surface for the lower end stop and forms the sword plate the end stop itself

The invention is shown in the drawing, for example. It shows a side view of the face conveyor on its dismantling side wall in connection with the one moving past this side wall Conveyed goods deflector.

From the drawing, a sword plate 5 engaging under the face conveyor 2 can be seen, which during the movement along the face conveyor, the individual trough sections 4 of the face conveyor from one after the other Lying 5 lifts off The underside 6 of the raised gutter sections 4, the lying 5 and the two In this position, the end faces of the sword plate 3 limit two free spaces below the face conveyor. Both free spaces are provided by one with a sword plane (not shown) or its add-on parts 7 connected Fördergutabweiser 1 closed on the mining joint side to prevent the penetration of the "coal from the δ KKgiigtQßfr / jnt Hgr ir "to prevent this freedom"

For the working-face side space side of the Fördergutabweiser 1 is a wall-like barrier to run is fixed in a vertical plane movably on the sword plane or de ^r s Anbauteüen 7 and against the sword plane or whose Anbauteüen 7 pivotable about a horizontal axis. Preferably, the wall-like barrier is pressed elastically resiliently against the lying surface 5 by means of spring pressure.

Arranged in front or behind the sword plane are two plates 11 and 11 'forming the material deflector 1, which are approximately in contact with the conveyor side wall on the side wall of the excavation. The facing plate ends 12 and 12 'of the plates 11 and W are each pivotably attached to a cut limiter 13 and 13' of the sword plane 24 and 24 'each have one of the two free spaces. A leaf spring 15 or 15 'acts on the two ^{plate ends 14 and 14' pointing away from each other r} in the direction of the lying 5 and a bearing pin 17 or 17 'attached to the cutter 13 or 13' of the swordsman passes through a bearing eye 16 or 16 'of the two facing plate ends 12 and 12'.

The leaf spring 15 or 15 'with an approximately central upwardly facing curvature 18 or 18' lies with the Spring ends 19 and 20 or 19 'and 20' on the top

21 or 21 'of the plate 11 or 11', with a spring end 19 or 19 'attached to the plate 11 or 1Γ is. In its curvature apex, the leaf spring 15 or 15 'is supported in this way with its curvature apex on a bolt 22 fastened above the leaf spring 15 or 15 'on the cut limiter 13 or 13' or 22 'from that the other spring end of the leaf spring 15 or 15' under Vc / tension on the top of the Wall plate is pressed slidingly.

In order to limit the vertical movements of the conveyor deflector 1 downwards and upwards, in the bolt

22 or 22 'simultaneously formed as an upper end stop 10 and the underside of the plate 11 or 1Γ Provided over parts of its length with a stop surface 23 or 23 'for the end stop 9, the Sword plate 3 forms the end stop 9 itself.

1 sheet of drawings

Claims (10)

Patent claims: 1. Material deflector for a face conveyor, on which one is used in long front construction and along which a mining face movable mining machine with a face conveyor under the Sword plate is guided, the individual during the movement along the face conveyor Trough sections of the face conveyor lifts from the lying, with between the underside of the Form raised gutter sections and the lying open spaces, characterized in that that the conveyor material deflector connected to the mining machine or its attachments (7) (1) the one between the underside (6) of the raised channel section (4) and the lying one (5) closed spaces on the mining joint side Z deflector according to claim 1, characterized in that the deflector (1) has a Wall-like barrier forms and movable in the vertical plane on the mining machine or its Attachments (7) is attached 3. Fördergutabweiser according to claim 2, characterized in that the Fördergutabweiser (1) can be pivoted about a horizontal axis relative to the mining machine or its attachments (7) is 4. Fördergutabweiser according to claim 2 or 3, characterized in that the Fördergutabweiser (: l) is elastically resiliently pressed against the lying (5), preferably by means of spring pressure 5. Fördergutabweiser according to one or more of claims 2 to 4, characterized in that the conveyed goods deflector (1) is provided with a runner (8) that slides on the lying (5) 6. Fördergutabweiser according to one or more of claims 2 to 5, dadurcii characterized in that the conveyed goods deflector (1) each limit the vertical movements downwards and / or upwards -to the end stop (9) or (10) is assigned 7. Fördergutabweiser according to one or more of claims 2 to 6, characterized in that the conveyor material deflector (1) consists of two, the extraction machine arranged in front or behind vertical plates (11) or (H '), which rest approximately against the conveyor side wall on the excavation face and with their plate ends (12) or (12 ') facing each other on the limiters (13) or (13 ') of the mining machine are pivotally mounted in such a way that the mutually facing away Plate ends (14) and (14 ') of plates (11) and (1Γ) each with one against the lying (5) directed extension (24) or (24 ') from the * underside (6) of the raised channel sections (4), close the recumbent (5) and the front edges of the sword plate (3) formed free spaces. 8. Fördergutabweiser according to claim 7, characterized in that the two away from each other so facing plate ends (14) or (14 ') each of a leaf spring (15) or (15') in the direction of the Lying (5) are acted upon and the two facing plate ends (12) and (12 ') each have a bearing eye (16) or (16 '), which is supported by a horizontal, on the cut limiter (13) or (13 ') of the mining machine attached bearing bolts (17) or (17') is penetrated. 9. conveyed goods deflector according to claim 7 or 8, characterized in that the leaf spring (15) or (15 ') is provided with an approximately central upward-pointing bulge (18) or (18') and each both spring ends (19) and (20) or (19 ') and (20') each on a top side (21) or (21 ') of the plates (11) and (H ') rest, each with a spring end (19) or (19 ') or (20) or (20') on the plate (11} or (H ') is attached and the leaf spring (15) or £ 15 ') in its apex at one above the leaf spring (15) or (15 ') attached to the cut limiter (13) or (13') and at the same time as the upper one Stop (10) formed bolt (22) or (22 ') is supported in such a way that the other spring end of the Leaf spring (15) or (15 ') is slidably pressed under pretension on the top of the plate 10. Fördergutabweiser according to one or more of claims 7 to 9, characterized in that the underside of the plate (11) or (H ') over parts of its length a stop surface (23) or (23') for has the lower end stop (S) and the sword plate (3) forms the end stop (9) itself