DE3223309A1 - Device for adjusting an eccentric stop for a pivotable tool carrier in a mining plough - Google Patents

Description

DIPL.- ING. BUSCHHOFF
Dipl.-ING. HEN NICK
Dipl.-Ing. VOLLBACH - <2t *

KAISER-WILHELM-RING 24 5000 COLOGNE 1

Registration number. Alttenz .:

Gw 8236 COLOGNE, June 8th, 1982

please state V O / k β

Note: Union Eisenhütte Westfalia 4670 Lünen

Title: Device for adjusting an eccentric stop for a swiveling tool carrier with a mining planer

The invention relates to a device for verisbeHung a Eccentric stop for a pivotable tool carrier, in particular a chisel rocker, in a mining plow, with an eccentric stop bearing in the plow body mounted eccentric shaft that can be operated from the face of the plow.

From DE-AS 12 39 258 an eccentric adjustment is this Kind known. The eccentric shaft extends through the planer body over its entire length and is thus inclined to the horizontal stored in the planer body that the end of the actuation on the abutment side is considerably higher than the eccentric stop load-bearing end on the working face side. This arrangement requires a long eccentric shaft and a corresponding one long mounting hole for this shaft. If the planer body is low and narrow, this is long and inclined eccentric shaft not or at least not easily accommodated in the planer body.

It is already known, for example from DE-PS 22 50 535, to equip coal planes with so-called bottom chisel wings, which are supported on the back against stop bolts, which are used to change the cutting level of the floor

chisels can be inserted into bolt holes in the planer body that are offset from one another.

The object of the invention is to design a device of the type mentioned at the beginning in a simple and space-saving manner that it can be accommodated even with a relatively low overall height and width of the plane.

This object is achieved in that the eccentric shaft arranged approximately in the horizontal position with a coupled to it running parallel to it and vertically arranged above it in the planer body actuating shaft is, the end of which is accessible from the mountain face of the planer.

According to the invention, therefore, the one carrying the eccentric stop The eccentric shaft is arranged at least approximately in the horizontal position in the planer body, with the one above it The actuating shaft is geared, the actuating end of which is accessible from the rock face of the plow is. This version of the eccentric adjustment can also be used with planer bodies with a comparatively small overall width Realize and height easily, especially when the eccentric adjustment for adjustment the known ground chisel rocker is used. Instead of a long, continuous eccentric shaft, a short, powerful eccentric shaft can be provided, which in a corresponding short blind hole in the planer body. A short shaft was also used for the actuating shaft will. The transmission of the adjustment movement is expediently carried out in a ratio of 1: 1, i.e. there is none Step-up or step-down of the adjustment movement instead.

An arrangement in which the eccentric shaft and the actuating shaft each have an

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Have serration, with their circumferential teeth stand directly in tooth engagement or indirectly via an intermediate gear or via a chain drive are coupled. When the two shafts mesh directly with each other, the direction of rotation is reversed while with the interposition of an intermediate wheel or a chain drive, both shafts rotate in the same direction during adjustment carry out. The eccentric shaft and the actuating shaft are each appropriately tapered in diameter Shaft journal which is mounted in a corresponding journal bore in the planer body.

In the drawing is a preferred embodiment of the invention shown. Show it:

Fig. 1 is a partial view of a mining plow in a View from the working face together with the adjustment device according to the invention;

FIG. 2 shows a section through the planer body along line II-II in FIG. 1.

The basic structure of the mining or coal plow 1 is known from DE-PS 22 50 535, for example. The extraction plane 1 has in addition to the usual push chisels for each of the two planing travel directions a bottom chisel rocker 2, which a ground chisel 3 carries. The ground chisel 3 cuts at the respective predetermined cutting level. The setting of the The cutting height takes place by means of an eccentric stop 4, against which the bottom chisel rocker 2 rests with its upper one End supports. The ground chisel rocker 2 is, as is known, guided in curved guides 5 of the planer body 6. At the rear, upper end, the chisel rocker 2 wear a counter-stop 7 with which it is supported against the eccentric stop 4.

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The eccentric stop 4 has, for example, four stop faces 8, 9, 10 and 11 on its circumference. By turning it accordingly of the eccentric stop 4 can be the individual stop surfaces 8 to 11 bring into effect to the bottom chisel rocker 2 in different height settings of their Base chisel 3 on the eccentric stop 4.

The eccentric stop 4 is attached to an eccentric shaft 12 which, as shown in particular in FIG. 2, is stepped Blind bore 13 of the planer body is mounted and its perpendicular to the mining or. Shaft axis directed towards coal face runs horizontally. Above the eccentric shaft 12 is an actuating shaft 14 parallel to it in the planer body 6 stored. The actuating shaft 14 has an actuating end 15, for example designed as a square, which is on the Landing face of the planer body 6 is located. A pivoting flap 16, which has an opening, is mounted here on the planer body has for the passage of the actuating end 15. The actuating end 15 can be accessed from the rock face forth a key or the like. to turn the actuating shaft 14. The two shafts 12 and 14 each have a circumferential toothing 17 and 18, respectively. In the illustrated embodiment, the two circumferential gears are 17 and 18 in direct meshing with the teeth, so that the two shafts 12 and 14 rotate in opposite directions carry out. The circumferential toothings 17 and 18 are expedient the same diameter, so that the rotary movement of the actuating shaft 14 without translation or reduction transferred to the eccentric shaft 12 and thus to the eccentric 4 will.

There is also the possibility of between the two circumferential gears 17 and 18 a toothed intermediate gear to be switched on, so that the two shafts 12 and 14 rotate execute in the same direction of rotation. It is also possible to use the

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two shafts 12 and 14 on their designed as sprockets th circumferential gears via a chain drive or the like. geared to pair.

The eccentric shaft 12 and the actuating shaft 14 each have at its inner end on a tapered shaft journal 19 or 20, with which it is in a corresponding pin bore 21 and 22 of the planer body 6 are mounted.

Claims (4)

Expectations : 1. Device for adjusting an eccentric stop for a pivotable tool carrier, in particular a chisel rocker on a mining plow, with one that carries the eccentric stop, is mounted in the planer body and from the rock face of the planer forth actuatable eccentric shaft, characterized in that the eccentric shaft (12) arranged approximately in the horizontal position with a to it actuating shaft (14) running parallel and vertically above it in the planer body (6) is coupled, the actuating end (15) is accessible from the mountain face of the plow. 2. Device according to claim 1, characterized in that that the eccentric shaft (12) and the actuating shaft (14) with the gear transmission Are coupled 1: 1. 3. Apparatus according to claim 1 or 2, characterized in that the eccentric shaft (12) and the actuating shaft (14) each have a circumferential toothing (17, 18), the circumferential toothing are in direct meshing with the teeth or indirectly via an intermediate gear or a chain drive are geared coupled. 4. Device according to one of claims 1 to 3, characterized in that the The eccentric shaft (12) and the actuating shaft (14) each have a shaft journal with a tapered diameter (19, 20) in a pin bore (21, 22) of the planer body (6) are stored.