Abstract: A mining plough for plough systems for the exploiting of minerals in inclined formations. In order to provide a mining plough and a plough system, with which coal seams, in particular seams in steep formation can be exploited economically and with high operating safety, the mining plough includes a separable plough body having two plough body basic elements each being provided with a fixture for a separate traction means and with a guide means for moving the coal plough by means of at least two traction means and for guiding the coal plough on at least two mutually spaced guide mechanisms.

Abstract: A bit arrangement for fastening to a plough-body element of a mining plough for underground mining, particularly of a coal plough for the excavation of steeply disposed coal seams, having a plurality of bit pockets for accommodating, preferably demountably, respectively one bit per bit pocket. In order thereby to create a bit arrangement and a mining plough that can be used advantageously for the excavation of steeply disposed mineral deposits and that render possible economic excavation of such mineral deposits, at least two bit pockets are locked in recesses on a front side of a bit strip, which is provided, on a back side, with at least one groove indentation for the positive engagement of a locking projection on the plough-body element and is detachably fastenable to the plough-body element by means of detachable fastening means.

Abstract: A ploughing device for mining, with a ploughing tool having a plurality of plough bodies being interconnected by means of detachable coupling members, and with a longwall conveyor forming a plough guiding means, wherein at least one ploughing body is provided with pivotable cutter carriers. In order to have a ploughing device for mining different seam thicknesses in an efficient manner even and with low number of spare parts to be stored, the ploughing tool has three plough bodies, one forming a central ploughing body, at the end of which are connected a first and second lateral ploughing body by means of a first and second coupling members, wherein the coupling members in each case consist of a toggle bolt with toggle shaft and toggle heads being insertable on open-edged toggle pockets on the bodies.

Abstract: A bit arrangement for fastening to a plough-body element of a mining plough for underground mining, particularly of a coal plough for the excavation of steeply disposed coal seams, having a plurality of bit pockets for accommodating, preferably demountably, respectively one bit per bit pocket. In order thereby to create a bit arrangement and a mining plough that can be used advantageously for the excavation of steeply disposed mineral deposits and that render possible economic excavation of such mineral deposits, at least two bit pockets are locked in recesses on a front side of a bit strip, which is provided, on a back side, with at least one groove indentation for the positive engagement of a locking projection on the plough-body element and is detachably fastenable to the plough-body element by means of detachable fastening means.

Abstract: A mining plough for plough systems for the exploiting of minerals in inclined formations. In order to provide a mining plough and a plough system, with which coal seams, in particular seams in steep formation can be exploited economically and with high operating safety, the mining plough includes a separable plough body having two plough body basic elements each being provided with a fixture for a separate traction means and with a guide means for moving the coal plough by means of at least two traction means and for guiding the coal plough on at least two mutually spaced guide mechanisms.

Abstract: A mining plow with a plow basic body which can be guided on a conveyor and which has on an inclined bearing surface a pivoting bolt for the pivotable mounting of a cutter carrier for each plow travel direction Two cutter carriers are mounted pivotably on respective pivoting bolts by a pivot bearing such that each cutter carrier is guided on a pivoting surface oriented concentrically about the pivot axis of the associated pivoting bolt and formed below the bearing surface on the plow basic body. The pivot bearing of each cutter carrier includes an open-edged receptacle, each cutter carrier being located on the pivoting bolt parallel to the bearing surface in a pivoting mounting position.

Abstract: A bit holder for a ploughing bit of a coal or extraction plough includes an insert pocket open on the top side for receiving a bit shank formed on the ploughing bit. The pocket is bounded by two lateral supporting walls, a front and a rear supporting wall, whereby the rear supporting wall has an elevated section projecting over the adjoining, lateral supporting walls. The rear supporting wall forming a bit support for the ploughing bit slopes down to its outer regions. In order to allow a good support for an inserted bit and easy and fast installation of the bit the front face of the rear supporting wall is fitted on the outer regions with guiding surfaces sloping down inwards to the insert pocket as an installation aid for the ploughing bit.

Abstract: A bit holder for a ploughing bit, particularly a bottom bit of a coal plough, includes an insert pocket 12 which is open at the top side 11 for receiving and supporting a bit stem of the ploughing bit and which pocket 12 is bounded on its edges by two lateral supporting walls 20, 30, a front supporting wall 13 and a rear supporting wall 14 with the rear supporting wall 14 projecting above the front supporting wall 13. In order to minimise the wear effect on the contact surfaces between bit stem and bit holder, the lateral supporting wall 20 facing away from the working face when the plough is in use projects above the front supporting wall 13 and the other lateral supporting wall 30 and forms an extended lateral support for the bit stem with respect to the other supporting wall 30.

Abstract: The subject matter of the present invention relates to a plow guide for a chain-pulled plow for use in underground mining operations, with plow guide troughs 20 and 50 having multiple parts and being connectable to one another by means of coupling elements so as to be tension-proof and angularly movable. Each plow guide trough has a center piece 21 and 51 with superposed chain guide channels 10C, 10B, 10D, to both sides of which center piece an end piece, 22,23 and 52,53 is joined by welding, which end piece is a single-piece casting with superposed chain channel sections that are separated by a sliding spacer piece that is cast on. To make available a high-performance Gleithobel system with a high tool life, cast-on holding pockets 24,25 and 54, 55—which are open on the working face side—for toggle connections with toggles 1 as coupling organs are disposed on end pieces 22,23 and 52, 53. (FIG.