JPS6250593A - Frame for drum cutter loader eouipped with revolvable drum support arm - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a frame for a drum cutter loader with a pivotable drum support arm, the drum cutter loader being arranged in the longitudinal direction of the frame. and has an adjusting cylinder for actuating the drum support arm, which is further mounted on the face side on the long-wall face conveyor or on the machine running track by means of a shoe, which adjusts in the end region of the machine body. They are located below the cylinder and are connected to the frame via a strut in each case.

BACKGROUND OF THE INVENTION A drum cutter loader of the above type is known from German Patent No. 2,141,165. Each of the two drum support arms is provided with two adjusting cylinders, one of which is arranged directly on the drum support arm on the face side and the other on the bottle filling side. , which engages the pivot shaft of the drum support arm on this bottle filling side.

A drum cutter having an integral frame, which supports the winch casing of the drum cutter in the center of its longitudinal axis, is also known in the art.
00 (SAGEM-purchase alzenschraemma
schine 5upper DTS 300)]. A cutter unit is suspended on each side of the casing so as to be pivotable about an axis extending transversely to the machine running direction. A cutter unit consisting of a drive motor and an associated reduction gear forms the support arm of the cutter drum, which support arm is located at the outer end of this unit and is adjustable in its working height in cooperation with the unit.

If the overall height of the cutter loader is low, the support of the shoe on the face side can be placed outside the portal frame in a single step near the vertical movement plane of the adjusting cylinder, so that the adjusting cylinder increases the overall width of the machine and also When placed on the inside, the opening of the portal frame is reduced. The same applies to drum cutter loaders with a high overall height, if the adjusting cylinder is not mounted above the machine frame, i.e. above the support of the shoe on the face side, and the attachment of the adjusting cylinder to the support arm becomes worse. apply.

SUMMARY OF THE INVENTION An object of the present invention is to provide a support member on the face side that connects the frame to the machine shoe in the drum cutter loader of the above type without expanding the structural width of the drum cutter loader, and in which the support member has a gate-shaped frame. The arrangement is such that the cross section of the botadoshi is not reduced.

Means for Solving the Problems In order to solve the above-mentioned problems, in the present invention, when the overall height of the portal frame is low, the frame and the shoe are connected to each other by a plurality of vertically provided struts. The width of the strut is designed to be larger than the outer diameter of the adjustment cylinder, and has a notch designed to correspond to the vertical pivot distance of the adjustment cylinder. The adjustment cylinder is guided through the notch, and if the overall height of the portal frame is high, the frame and shoe are located below the adjustment cylinder and in the direction toward the center of the frame. They are connected to each other by a plurality of struts that extend behind the adjusting cylinder and are fixed to the frame at the rear of the adjusting cylinder.

Effects of the Invention According to the above-mentioned means of the present invention, the support of the frame can be arranged in the pivot plane of the adjusting cylinder both in a drum cutter loader with a low overall height and in a drum cutter loader with a high overall height. As a result, the open portal cross section is not narrowed, nor is the structural width of the device increased, as would be the case if the adjusting cylinder and the strut were arranged in parallel. Enlarging the gantry cross-section is very advantageous as it aids in the removal of bottons, since generally gantry frames are particularly easily obstructed by thick bot walls, leading to drive failures.

Embodiment According to an advantageous embodiment of the invention, in a frame with vertical struts, both ends of the struts are provided in each case by a sheet metal that rests on the struts and is vertically guided there. covered. This sheet metal has a hole corresponding to the outside diameter of the adjusting cylinder and surrounds said adjusting cylinder closely. Therefore, the notch will not be contaminated by the invading button. As a result, the vertical movement of the adjusting cylinder within this notch is not hindered.

Advantageously, two laminas are located between each two lateral ribs of the strut, the lateral edges of which are movably connected in vertical grooves of said ribs. These plates follow the movement of the adjusting cylinder without moving away from the strut and without releasing the cutout in the strut.

In a frame in which the strut extends to the rear of the adjusting cylinder, the strut is provided with a notch which is arranged in a vertical plane extending through the axis of the adjusting cylinder and which is penetrated by the pin. It is advantageous if an adjusting cylinder is connected in each recess and is pivotably mounted vertically. In this embodiment, the strut simultaneously takes on the role of receiving the adjusting cylinder, which in turn is able to better manipulate the support arm of the cutter drum.

The strut is provided with at least one hole extending in the longitudinal direction of the adjusting cylinder and used for receiving a pressure medium conduit, which hole opens into the recess and extends to the rear end face of the strut. The supply and discharge pipes of the regulating cylinder are provided in such a way that the extending and flexible pressure medium conduit is connected inside the recess to the regulating cylinder.
It is housed within the strut in such a way that it is secure and cannot be damaged.

The example drum cutter loader is designated by l. This drum cutter loader has a support arm 2 at both ends thereof that can pivot about a horizontal axis, and the support arm has a drive motor 3 on the main body side and a cutter drum 4 on the face side. There is.

A bidirectionally acting adjusting cylinder 5 is arranged on each support arm 2, the piston rod 7 of which engages in a support arm extension 6. The support arm 2 and the adjustment cylinder 5 are located on the face side part of the machine body. The machine body is supported by a portal frame 8 or 9 and is located above the long wall face conveyor 10.

In a first embodiment in which a drum cutter loader l for mining large coal seams is shown, the frame 8 and thus the drum cutter loader l have a relatively large overall height and a portal opening of a corresponding height. , and the opening is used to penetrate the pile. This large opening cross section is obtained by arranging the adjusting cylinder 5 outside the portal opening on the outside of the frame and by arranging the cutter drum 4 inside the vertical pivot plane of the associated support arm 2. A shoe 11 of the drum cutter loader 1 is arranged at the end of the body for stationary fixation and better guidance. The strut 12 connects the shoe 11 on the face side and the frame 8 of the drum cutter loader I. Each of these struts is
both frame halves a connected to each other by screws,
It is fixedly welded to one side of b. The support supports the shoe 11 placed on the machine running path so as to be able to pivot around the horizontal pin 14, and extends in the direction toward the longitudinal center of the frame 8 passing under the adjustment cylinder 5. There, the strut is connected to the associated frame halves a, b behind the adjusting cylinder 5. The adjusting cylinder 5 with the cylinder attachment part 15 equipped with an eye is connected to the strut 12
It engages in a recess 16 and is pivotably supported in this recess 16 about a horizontal pin 17. Strut 1 located mostly below the adjusting cylinder 5
Relative to 2, the adjusting cylinder 5 has sufficient movability to manipulate the support arm 2 in the desired manner. The regulating cylinder is loaded via one of the two pressure medium conduits 18 , 19 arranged in the bore 20 of the strut 12 . Said hole 20 opens into the cutout 16 and extends to the opposite side of the strut from the cutout 16. The holes 20 have two liquid conduits 18 connecting the regulating cylinder 5 with a liquid pump provided inside the drum cutter loader 1.
．． 19 to protect these two conduits from damage. The two flexible liquid conduits 18.19 are
They are connected to separate holes in the cylinder extension 15 and, depending on the loading direction of the piston of the regulating cylinder, one liquid conduit carries the liquid of a drum cutter loader l (not shown) on one side or the other of the piston. The other liquid conduit, connected to the pump, is used as a discharge conduit.

In the embodiments of FIGS. 3 and 4, a drum cutter loader l having a short overall height is shown. In this embodiment, the main body, support arm 2 and cutter drum 4 are the same as those of the drum cutter loader of the previous embodiment. Only the struts 21 and the frame 9 are somewhat separated. As shown in particular in FIG. 3, the adjusting cylinder 5, which operates the support arm 2 of the drum cutter loader l, is also located near the portal frame in this variant embodiment, but above the machine track 13, and It is located very close above the chute on this machine track. The support member 21 that connects the shoe 11 with the frame 9 is
In this embodiment, the support extends vertically and is reinforced on both sides by welded rib pairs 22.

In this embodiment, the adjusting cylinder 5 is arranged in a notch 23 in the strut 21.
The notch 23 extends through the adjusting cylinder 5
is formed and designed to allow the necessary movement in the vertical direction. Two pairs of ribs 22 surround the adjusting cylinder 5 on both sides of the strut 21 . On the side facing the adjusting cylinder 5, these ribs are provided with mutually opposite vertical grooves 24, which are located approximately in line with the side surface of the strut. A thin plate 25 is vertically displaceably guided in the groove and is fitted onto the outer circumference of the adjusting cylinder 5, with a hole 26 corresponding to the outer diameter of the adjusting cylinder 5. Both side edges of this thin plate 25 engage with a vertical groove 24 and are guided so as to be movable in the longitudinal direction within this groove. The thin FL 25 has a length sufficient to tightly close the notch 23 in the strut and prevent entry of the button, no matter what position the adjustment cylinder is in.

[Brief explanation of drawings]

Claims (1)

[Claims] 1. A frame for a drum cutter loader equipped with a rotatable drum support arm, wherein the drum cutter loader is disposed in the longitudinal direction of the frame and operates the drum support arm. It has an adjusting cylinder and is furthermore rested on the face side on the long-wall face conveyor or on the machine track by means of a shoe, which shoe is located in the end region of the body and below the adjusting cylinder. If the total height of the portal frame is low, the frame (9) and shoe (11) may be installed vertically. They are connected to each other by a plurality of struts (21), and the width of the struts is designed to be larger than the outer diameter of the adjustment cylinder (5), and the width of the struts is designed to be larger than the vertical pivot distance of the adjustment cylinder (5). It has a correspondingly designed cutout (23) through which the adjusting cylinder (5) is guided, and if the overall height of the portal frame is high, the frame (8) and the shoe (11) are located below the adjustment cylinder (5) and extend to the rear of the adjustment cylinder (5) in the direction toward the center of the frame, at which point the shoe (11) is located under the adjustment cylinder (5). 8) A frame for a drum cutter loader with pivotable drum support arms, characterized in that they are connected to each other by a plurality of struts (12), such as those fixed to the frame. 2. Both ends of the notch (23) of the strut (21) are each covered by a thin plate (25) that is in contact with the strut (21) and is vertically guided there; The thin plate has a hole (26) corresponding to the outer diameter of the adjusting cylinder (5).
2. A frame as claimed in claim 1, having a frame having: closely surrounding said adjusting cylinder. 3. Said two lamellas (25) are between each two lateral ribs (22) of the strut (21), and the lateral edges of said lamellas are in the vertical grooves (24) of said ribs (22). 3. A frame according to claim 2, wherein the frame is movably engaged within the frame. 4. The support (12) extends to the rear of the adjustment cylinder and is located in a vertical plane extending through the axis of the adjustment cylinder (5), and the pin (17) extends through it. 2. The frame according to claim 1, further comprising a recess (16) in which an adjusting cylinder (5) engages and is pivotably mounted vertically. 5. said strut (12) is provided with at least one hole (20) for receiving a pressure medium conduit (18, 19) extending in the longitudinal direction of the adjustment cylinder, and said cutout (
16) extends to the rear end face of the strut, and the flexible liquid conduit (18, 19) is connected to the adjustment cylinder (5) inside the cutout (16). A frame according to claim 4.