DE1288043B

DE1288043B -

Info

Publication number: DE1288043B
Application number: DENDAT1288043D
Authority: DE
Publication date: 1969-01-30

Description

Es sind Rückeinrichtungen für Strebfördermittel _; ,beitragen. Sie benötigen dazu keine besonderen bekannt, mit deren Hilfe die Strebfördermittellage Arbeitszylinder, sondern lassen sich im Bedarfsfall gesteuert werden kann, um das an.dem Fördermittel mit Hilfe der Rückzylinder betätigen, deren Stangengeführte Gewinnungsgerät tiefer in das Liegende ein- kopf von seinem Angriffspunkt gelöst und mit dem dringen zu lassen. 5 entsprechenden Arm des Schwenkhebels verbundenThere are back devices for face conveyors _; ,contribute. You do not need any special known to help the face conveyor position working cylinder, but can be controlled if necessary to operate the an.dem conveyor with the help of the return cylinder, whose rod-guided extraction device detached from its point of application deeper into the lying one head with the urge to let. 5 corresponding arm of the pivot lever connected

Außerdem gehören bereits Strebfördermittel zum wird.In addition, face funding is already part of the will.

Stand der Technik, die in einem sich über die Streb- Nach einem weiteren Erfindungsmerkmal greiftState of the art, which is based on a further feature of the invention

länge erstreckenden Führungsgestell liegen, auf dem einer der beiden Arme des Schwenkhebels an der oder an dem die Gewinnungsmaschine verfahrbar ist. Versatzseite des Strebfördermittels mit verschieb-Weiterhin gehört es zum Stand der Technik, ein io barem Angriffspunkt an und ist gegenüber dem Strebfördermittel auf quer zur Förderrichtung ver_T , anderen Hebelarm abgewinkelt. Durch diese Ausbillaufenden Schienen zu verlegen, die mit Abstand ' dung wird einmal ein größerer Hubweg, wie er zur voneinander angeordnet sind. Diese Schienen, die Inspektion und eventuellen Reparatur erforderlich ist, den' fördererseitigen Stempel eines Ausbaugestells erreicht und außerdem die Baubreite der Vorrichumschließen und sich vor und hinter diesem Stempel 15 tung verringert, also vermieden, daß der mit dem auf dem Liegenden abstützen, werden von Federn, Rückzylinder zu verbindende Hebelarm weit in das die dem Stempel zugeordnet sind, gegen das Liegende Fahrfeld vorsteht. Aus diesem Grund kann man die gepreßt. Sie tragen an ihrem abbaustoßseitigen Ende beiden Arme der Schwenkhebel auch so ausbilden eine zum Strebfördermittel parallele Führungsschiene und anordnen, daß sie in unterschiedlichen 'Winkelfür die Gewinnungseinrichtung, die um zur Förder- 20 lagen miteinander verbindbar sind und aus einem richtung parallele Achsen verschwenkbar ist und an Schlitz der Seitenbracke austreten. Ebenso kann die der abbaustoßseitigen Wand des Strebfördermittels Achse _des Schwenkhebels lösbar und der Schwenkanliegt. Durch versatzseitig angeordnete Hubeinrich- hebel aus seiner Betriebsstellühg in die Seitenbracke tungen, die aus einer dem fördererseitigen Stempel einschwenkbar sein.length extending guide frame on which one of the two arms of the pivot lever on or on which the mining machine can be moved. Offset side of the face conveyor with sliding-Furthermore, it belongs to the state of the art, an io ble point of application and is _{angled opposite the face conveyor on transverse to the conveying direction ver T} , other lever arm. To lay through these trailing rails, the distance between the two is once a larger stroke, as it is to be arranged from each other. These rails, the inspection and possible repair is required, reached the 'conveyor-side stamp of an expansion frame and also enclose the overall width of the device and reduced in front of and behind this stamp 15 device, so avoided that the rest on the lying, are of springs Lever arm to be connected to the rear cylinder in which those assigned to the punch protrudes against the horizontal driving field. For this reason you can use the pressed. They carry both arms of the pivot levers at their end on the mining face side, so they also form a guide rail parallel to the face conveyor and arrange them so that they can be pivoted at different angles for the extraction device, which can be connected to each other around the conveyor 20 and from a direction parallel axes Exit slot of the side brace. Likewise, the axis of the pivot lever on the wall of the face conveyor can be detachable and the pivot can be in contact. By lifting device levers arranged on the offset side from its operating position into the side bracket, which can be swiveled in from a punch on the conveyor side.

umschließenden Manschette bestehen, die gegenüber 25 Man kann auch das Strebfördermittel um seine dem Unterstempel durch hydraulische Beaufschlagung obere stoßseitige jLängskante schwenkbar in dem heb- und senkbar ist oder aber durch einen beson- Führungsgestell anordnen, welphes mit quer zur Förderen Hubzylinder, kann das Strebfördermittel ein- derrichtung verlaufenden, das Strebfördermittel seitig angehoben und dadurch auf die Lage der FUh- untergreifenden, verschiebbar gelagerten Gestängen rungsschiene eingewirkt und das an ihr geführte Ge- 30 versehen ist. Mit ihrem,.abgebogenen stoßseitigen winnungsgerät gesteuert werden. Ende liegen diese Gestänge unterhalb der alsencircling cuff, which are opposite 25 You can also use the face conveyor around his The lower ram can be swiveled in the upper longitudinal edge of the joint by hydraulic actuation can be raised and lowered or by a special guide frame, welphes with transverse to the conveyor Lifting cylinder, the face conveyor can run in one direction, the face conveyor raised on the side and thus to the position of the FUh- under-reaching, displaceably mounted rods rungsschiene acted and the Ge 30 guided on it is provided. With her collection device can be controlled. At the end of these rods are below the than

Auch sind hydraulische Hubeinrichtungen be- Schwenkachse" dienenden Längsiänte~äüf der stoßr:kanntgeworden, die versatzseitig amStrebfördermittel _i:: seitigen Wand des Strebfördermittels auf und sind angreifen und es um die stoßseitige Kante schwenken .mit ihrem versatzseitigen Ende mit einem Arm des und so weit anheben, daß man Reparaturarbeiten 35 am Führungsgestell oder der Seitenbracke schwenkan den Rundgliederketten des Untertrums ausführen bar gelagerten Hebels verbunden oder aber lassen kann. sich unmittelbar mit einer RückzylinderkolbenstangeAlso, hydraulic lifting devices loading pivot axis "serving Längsiänte ~ äüf the stoßr: known become the goaf side _i amStrebfördermittel _:: side wall of the longwall conveyor and are attack and swing it to the shock-side edge .with its offset end with an arm of and as far raise that one can carry out repair work 35 on the guide frame or the side bracket schwenkan the round link chains of the lower run bar mounted lever connected or else can be directly connected to a return cylinder piston rod

Ferner ist es bekannt, Rückzylinder über ein Knie- verbinden. In diesem Fail wirkt der Schwenkhebel gelenk bildende hebelartige Zwischenglieder mit dem über das Gestänge mittelbar auf die stoßseitige Wand Strebfördermittel zu verbinden, um mit ihrer Hilfe 40 des Strebförderfriittels ein und drückt sie, im Bereich ;.das Strebfördermittel zu steuern. ·...,,- _t . . . . ..der unteren Seitenwand angreifend, in Richtung zumIt is also known to connect the rear cylinder via a knee. In this case, the pivoting lever acts as a joint-forming lever-like link with the face conveying means to be connected indirectly via the linkage to the abutting wall, in order to control the face conveying means with its help 40 of the face conveying means and pushing it in the area. · ... ,, - _t . . . . .. attacking the lower side wall, in the direction of the

Die Erfindung hat sich die" Aufgäbe gestellt, ein' Versatz. Infolge der schwenkbaren Anordnung wirdThe invention has set itself the "task, an 'offset. As a result of the pivoting arrangement

Strebfördermittel mittels der Rückzylinder so weit das Strebfördermittel dabei um seine obere stoßum seine stoßseitige Unterkante zu kippen, also ver- seitige Längsachse gekippt und dadurch so weit ansatzseitig anzuheben, daß sein Untertrum, beispiels- 45 gehoben, daß seine Unterseite einen Winkel von etwa weise die beiden Rundgliederketten, gut zugänglich 45° mit dem Liegenden einschließt. Es ist auch mögist, um eventuell aufgetretene Schaden zu beheben. lieh, diese Hubbewegung des Strebfördermittels ohne Sie geht dazu von einer Vorrichtung zum versatz- Winkelhebel zu erzeugen, indem man die Rückseitigen Anheben eines Strebfördermittels. :aus, die; _Γ ν Zylinderkolbenstange' direkt-nriit/.dem versatzseitigen mit um eine zur Förderrichtung · parallele Achse 50. Gestängeende verbindet und den Rückzylinder im entschwenkbar gelagerten Hebeln ausgerüstet ist, an sprechenden Sinn beaufschlagt. Gegenüber der vordenen je ein Rückzylinder angreift und kennzeichnet beschriebenen Lösung hat diese Ausbildung den Vorsieh "dadurch, daß die Hebel ärn Ausbau oder an dem teil, daß~die~~UnteTseite~"deirittels dabei das Strebfördermittel aufnehmenden, Führungsgestell . , auf, derganzen Länge, dgs-geschwenkten Fördermittel- bzw. an Teilen des Führürigsgestelis mit oberhalb 55■- äbschnittes " freiliegt, So ~ daß die vorzunehmenden der Strebfördermitteloberkante liegender Schwenk- Reparaturarbeiten nicht durch an- der versatzseitigen achse gelagert sind und einen zweiarmigen Hebel Strebfördermittelwand angreifende Schwenkhebel bebilden, der mit einem Arm mittel- oder unmittelbar hindert werden.Face conveying means by means of the rear cylinder so far to tilt the face conveying means around its upper abutment to its abutment-side lower edge, that is to say tilted the side longitudinal axis and thereby to raise it so far on the base side that its lower strand, for example, is raised that its underside forms an angle of approximately the includes both round link chains, easily accessible 45 ° with the horizontal. It is also possible to repair any damage that may have occurred. borrowed, this lifting movement of the face conveyor without you going to generate a device for offset angle lever by lifting the rear face of a face conveyor. :From the; _Γ ν cylinder piston rod 'direct-nriit / .the offset side with an axis 50. parallel to the conveying direction connects the end of the rod and the rear cylinder is equipped in levers that can be pivoted away. Compared to the solution described in front of each one attacking and characterizing, this training has the provision that the levers are expanded or that the lower side of the guide frame takes up the face conveyor. , on, the whole length of the swiveled conveyor or parts of the guide frame with above 55 "section" is exposed, so that the swiveling repair work to be carried out on the upper edge of the longwall conveyor is not supported by the offset-side axis and a two-armed lever Form the face conveyor wall attacking pivot lever that is directly or indirectly prevented with an arm.

an einer Seite des Strebfördermittels angreift und Zweckmäßigerweise stützt sich das stoßseitige Ge-attacks on one side of the face conveyor and expediently supports the joint-side structure

dessen anderer Arm mit der Kolbenstange enes Rück- 60 stängeende mittels Rolle oder Gleitstück an der stoßzylinders verbindbar ist. seitigen Strebfördermittelwand ab. Außerdem kann C^ the other arm of which can be connected to the piston rod at the rear end of the rod by means of a roller or slider on the push cylinder. side face conveyor wall. In addition, C ^

Derart ausgebildete Vorrichtungen, die, über die das Strebfördermittel durch ein im Bereich seiner ^;U~ Länge des Strebfördermittels verteilt, jeweils im Be- oberen stoßseitigen Längskante befindliches Gelenk ^;- ' reich eines Rückzylinders angeordnet sind, können mit dem Führungsgestell verbunden sein. Dieses Ge- ·' ■'"' auch den unteren Fördererbereich für eine Inspek- 65 lenk wird von einem Ansatz und einer Ausnehmung ;: f tion zugänglich machen und dadurch zum schnellen gebildet, in die der Ansatz schwenkbar eingreift. '■'" Such trained devices that, through which the face conveyor by a in the area of his ^; U ~ Length of the face conveyor distributed, in each case joint located in the upper longitudinal edge of the joint ^; - ' Are arranged rich of a rear cylinder, can be connected to the guide frame. This overall · '■''' and the lower conveyor area for inspection 65 is steered by a lug and a recess; f tion made available, thereby forming for fast, in the pivotally engages the lug. '■'"

Auffinden und Beheben der im Untertrum eines In den Figuren sind zwei Ausführungsbeispiele der ^! Finding and eliminating the in the lower run of a In the figures are two embodiments of the ^!

Strebfördermittels häufiger auftretenden Kettenrisse Erfindung dargestellt. Es zeigt _t -Face conveyor represented more frequently occurring chain cracks invention. It shows _t -

Claims

.Fig. 1 shows a cross-section through a face conveyor that is lifted by pivot levers attached to the extension, FIG. 2 shows the cross-section of a face conveyor located in a guide frame, which can be raised via rods acting on the joint side, FIG. 3 shows the face conveyor according to FIG raised state. The face conveying means is denoted by 1, the expansion by 2 and the return cylinders acting on the face conveying means 1 and pushing it up to the new excavation face after passing through the mining machine (not shown) are denoted by 3. In the embodiment according to FIG. 1, the offset side face conveyor center wall is occupied by a side bracket 4, on which the individual rear cylinders 3 distributed over the face length normally engage directly with their piston rods 5. In the exemplary embodiments shown, the rear cylinders 3 also have the task of lifting the offset side of the face conveyor 1 if necessary. For this purpose, FIG. 1 each of the stamps adjacent to the rear cylinders 3 is occupied by a projection 6, in each of which a two-armed pivot lever 7 is pivotably mounted about a horizontal axis 8 parallel to the face conveyor 1. With one arm, this pivot lever 7 engages a stiffening rib 9 of the side bracket 4, while the other arm is connected to the rear cylinder 3. An elongated hole 10 located in the stiffening rib accommodates the bolt that establishes the flexible connection between the arm and the side bracket 4 and, when the face conveyor 1 is lifted into the dot-dashed position shown, gives it the possibility of movement required for this pivoting movement relative to the face conveyor 1. The return cylinder 3 can Therefore, with appropriate loading, easily raise the face conveyor 1 so far that its underside can be observed from the driving field and any chain cracks that may have occurred can be repaired. Since the two arms of the pivot lever 7 are angled against each other and lie below the axis 8, they do not unnecessarily narrow the driving field and also do not take up any additional space. In addition, the two arms of the pivot lever 7 can also be designed so that they can be connected to one another in different angular positions so that, when they are not needed, they can be brought into a position that does not restrict the driving field. In the embodiment according to FIGS. 2 and 3, the face conveyor is lifted over the linkage 12. The piston rod 5 of the return cylinder 3 engages this linkage, which runs below the face conveyor 1 and is assigned to a guide frame 13 receiving the face conveyor 1, either directly or via the pivot lever 14. The latter is arranged in the side bracket 4 assigned to the guide frame 13 so as to be pivotable around the bore 15 of the stiffening rib 9 (FIG. 3) and engages with its lower end pivotably via a pin 16 and slidably in the elongated hole 17 on the extension 18 of the rear rod end at. The rear cylinder engages the upper end of the pivot lever 14 through a slot 19 in the side bracket 4 and presses it into the position shown when it is acted upon accordingly. He pulls the rod 12, which with its other end bent upwards either with a roller 20 or a slider or the like on the wall of the face conveyor 1 on the face side, back into the position shown and thus brings the face conveyor 1 into the pivoted position . In this embodiment, the underside of the face conveyor, as seen from the driving area, is completely free. Such a pivoting movement, however, requires an articulated connection between the guide frame 13 and the face conveyor 1 located in it. In the exemplary embodiment shown, this connection is formed by a cylindrical extension 21, which is assigned to the guide frame 13 and runs parallel to the face conveyor 1, and a nose 22 which engages under this extension 21 with a corresponding recess and is also associated with the face conveyor 1. The longwall conveyor must therefore assume the position shown under the pressure of the linkage 12, in which the lower run is easily accessible from the driving field. A strip 25 attached to the offset-side wall of the face conveyor 1, which is dimensioned according to the length of the individual trough sections, closes the free space of the guide frame 13 required for the trough pivoting movement and prevents the debris from entering this space of the guide frame. During normal conveying operation, the rear cylinder 3 engages the stiffening rib 9 at 23. The pivot lever 14 can therefore, after the bolt has been removed from the bore 15, pivoted into the position shown and fixed in the side bracket 4 with the aid of this bolt and the bore 24. Patent claims:

1. Device for the offset-side lifting of a longwall conveyor, which with a to Conveying direction parallel axis is equipped with pivotable levers, on each of which one Rear cylinder engages, characterized in that the levers (7, 14) on the extension (2) or on the one receiving the face conveyor (1) Guide frame (13) or on parts of the guide frame above the upper edge of the face conveyor horizontal pivot axis (8, 15) are mounted and form a two-armed lever that directly or indirectly with one arm engages on one side of the face conveyor (1) and its other arm with the piston rod (5) of a rear cylinder (9) can be connected.

2. Apparatus according to claim 1, characterized in that one of the two arms of the Swivel lever (7) on the offset side of the face conveyor (1) with a movable point of application (11) attacks and opposite the other lever arms with the pivot point is angled on the expansion.

3. Device according to claims 1 and 2, characterized in that the two arms the pivot lever can be connected to one another in different angular positions and consists of one Exit slot of the side brace.

4. Device according to claims 1 to 3, characterized in that the axis of the

The pivot lever can be released and the pivot lever can be pivoted out of its operating position into the side bracket is.

5. Device according to claims 1, 3 and 4, the one receiving the face conveyor Guide frame is assigned, characterized in that the face conveyor (1) around its upper butt-side longitudinal edge is pivotable in the guide frame (13), which is with running transversely to the conveying direction, the longwall conveyor (1) engaging under, displaceably mounted Linkage (12) is provided with its bent butt end below the longitudinal edge serving as the pivot axis (21) on the abutting wall of the face conveyor (1) and with its end on the offset side with an arm of the on the guide frame or the Side bracket (4) are connected pivotably mounted lever or directly with a rear cylinder piston rod are connectable. j

6. Device according to claims 1 and 3 to 5, characterized in that the joint-side The end of the linkage is attached to the joint side wall of the longwall conveyor by means of a roller or slider supports.

7. Device according to claims 1 and 3 to 6, characterized in that the face conveyor by a joint located in the area of its upper butt-side longitudinal edge is connected to the guide frame.

8. Device according to claims 1 and 3 to 7, characterized in that the joint is formed by an approach and a recess into which the approach engages pivotably.

1 sheet of drawings

ZEICHNUNGEN BLATTlDRAWINGS SHEET

Number: Int. CL: German class: display day:

E21f

5 d -13/08

January 30, 1969

ZEICHNUNGEN BLATTlDRAWINGS SHEET

Number: Int. Cl .:
German class display day:

E21f

5 d-13/08

January 30, 1969

ZEICHNUNGEN BLATT 1DRAWINGS SHEET 1

Number: Int. Cl .: German cl .: Ausleeetae:

E 21 f

5 d- 13/08

January 30th 1% 9

909 505/1161