DE3334268A1 - Pick for a winning machine working with a ploughing action, in particular a coal plough - Google Patents
Pick for a winning machine working with a ploughing action, in particular a coal ploughInfo
- Publication number
- DE3334268A1 DE3334268A1 DE19833334268 DE3334268A DE3334268A1 DE 3334268 A1 DE3334268 A1 DE 3334268A1 DE 19833334268 DE19833334268 DE 19833334268 DE 3334268 A DE3334268 A DE 3334268A DE 3334268 A1 DE3334268 A1 DE 3334268A1
- Authority
- DE
- Germany
- Prior art keywords
- chisel
- hard metal
- pick
- winning machine
- machine working
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000003245 coal Substances 0.000 title claims description 9
- 239000002184 metal Substances 0.000 claims description 15
- 238000005065 mining Methods 0.000 claims description 4
- 238000000605 extraction Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005242 forging Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C27/00—Machines which completely free the mineral from the seam
- E21C27/20—Mineral freed by means not involving slitting
- E21C27/32—Mineral freed by means not involving slitting by adjustable or non-adjustable planing means with or without loading arrangements
- E21C27/44—Planing knives
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
- E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
- E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material
- E21C35/1833—Multiple inserts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
- E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material
- E21C35/1837—Mining picks; Holders therefor with inserts or layers of wear-resisting material characterised by the shape
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
- Component Parts Of Construction Machinery (AREA)
- Debarking, Splitting, And Disintegration Of Timber (AREA)
Abstract
Description
Meißel für eine schälend arbeitende Gewinnungsmaschine, Chisels for a peeling mining machine,
insbesondere für einen Kohlenhobel Die Erfindung betrifft einen Meißel für eine schälend arbeitende Gewinnungsmaschine, insbesondere für einen Kohlenhobel, wobei der Schneidrücken des Meißels mit einem Verschleiß schutz ausgerüstet ist. in particular for a coal plow The invention relates to a chisel for a peeling mining machine, especially for a coal plow, wherein the cutting back of the chisel is equipped with a wear protection.
Schälend arbeitende Gewinnungsmaschinen weisen jeweils eine Vielzahl übereinander angeordneter Hobelmeißel auf. Diese Hobelmeißel sind meistens an den Außenseiten von sogenannten Schwenksegmenten oder Hobelklappen angeordnet. Bei der Gewinnungsfahrt des Hobels ist eine Partie der Meißel eingeschwenkt und schält mit ihren Hartmetallschneiden die Kohle aus dem Kohlenstoß, während die gegenüberliegenden Meißel ausgeschwenkt sind und mit ihren Schneidrücken am Gewinnungsstoß entlangschleifen. Das ständige Schleifen der Pieißelrücken am Kohlen stoß führt zu einem übermäßigen Verschleiß in diesem Bereich, was zu einem Auslösen der Hartmetallschneide und damit zur Unbrauchbarkeit des Meißels führen kann.Extraction machines that work with peeling each have a large number planing chisels arranged one above the other. These planing chisels are mostly on the Arranged on the outside of so-called swivel segments or planer flaps. In the During the extraction run of the planer, a section of the chisel is swiveled in and peeled at the same time their hard metal cut the coal from the coal face, while the opposite Chisels are swiveled out and grind with their cutting back along the mining joint. The constant rubbing of the back of the pebbles on the coal leads to an excessive Wear in this area, leading to the carbide cutting edge being triggered and thus can lead to the uselessness of the chisel.
In der Praxis sind solche Hobelmeißel deshalb meistens im Bereich ihres Schneidrückens durch eine Auftragsschweißung geschützt.In practice, such planing chisels are therefore mostly in the area their cutting back is protected by build-up welding.
Durch die Auftragsschweißung konnten die Standzeiten der Hobelmeißel zwar verlängert werden, jedoch ist ein völliger Verschleiß dadurch nicht zu vermeiden.The build-up welding reduced the service life of the planing chisels can be extended, but complete wear and tear cannot be avoided as a result.
Durch die DE-OS 27 41 894 ist ein Rundmeißel bekannt, der an seinem Schaft einen Ring aus Hartmetall aufweist. Dieser Hartmetallring soll den Verschleiß am Schaft bei Einsatz des Meißels in abrasivem Gestein verhindern.From DE-OS 27 41 894 a round chisel is known, which at his Shank has a ring made of hard metal. This carbide ring is supposed to reduce wear on the shaft when using the chisel in abrasive rock.
Ausgehend von dem vorgenannten Stand der Technik hat sich die Erfindung die Aufgabe gesetzt, einen Meißel, insbesondere für einen Kohlenhobel, derart zu gestalten, daß auch unter schwierigsten Bedingungen eine hohe Standzeit gewährleistet ist.On the basis of the aforementioned prior art, the invention has been developed set the task of a chisel, in particular for a coal plow, in such a way design that ensures a long service life even under the most difficult conditions is.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß am Meißelrükken Hartmetalleinsätze angeordnet sind.This object is achieved according to the invention in that on the chisel back Hard metal inserts are arranged.
Diese Hartmetalleinsätze bestehen entweder aus Hartmetallstiften, die in Bohrungen des Meißelrückens eingepreßt werden, oder aus Hartmetallplättchen, die in einer Nut am Meißelrücken verlötet werden. Die Anordnung dieser Hartmetalleinsätze ist dabei so getroffen, daß sie während der Gewinnungsfahrt im Schatten der Hartmetallschneide liegen. Bei ausgeschwenktem Meißel liegt die Meißelspitze geschützt hinter diesen Hartmetalleinsätzen, so daß übermäßiger Verschleiß in diesem Bereich verhindert und ein vorzeitiges Ausbrechen der Hartmetallschneide vermieden wird.These carbide inserts consist either of carbide pins, which are pressed into bores in the back of the chisel, or made of hard metal plates, which are soldered in a groove on the back of the chisel. The arrangement of these cemented carbide inserts is made in such a way that it is in the shadow of the hard metal cutting edge during the extraction journey lie. When the chisel is swiveled out, the chisel tip lies protected behind it Carbide inserts so that excessive wear is prevented in this area and a premature breakout of the hard metal cutting edge is avoided.
Die Erfindung wird nachfolgend anhand eines in der Zeichnung dargestellten Ausführungsbeispieles näher erläutert.The invention is illustrated below with reference to one in the drawing Embodiment explained in more detail.
Es zeigen: Figur 1 einen Bodenmeißel mit eingepreßten Hartmetalleinsätzen in Seitenansicht, Figur 2 einen Bodenmeißel nach Schnitt I-I der Figur 1, Figur 3 einen Kerbmeißel in Seitenansicht, Figur 4 einen Kerbmeißel nach Schnitt II-II der Figur 3.The figures show: FIG. 1 a ground chisel with pressed-in hard metal inserts in side view, FIG. 2, a ground chisel according to section I-I of FIG. 1, FIG 3 shows a chisel in side view, FIG. 4 shows a chisel according to section II-II of Figure 3.
In der Zeichnung ist mit 1 ein Hobelmeißel bezeichnet, der aus einem plattenförmigen Schmiedestück besteht und mittels seines einstückig angeformten Fuß teiles 2 in die Tasche eines Meißelhalters einsteckbar ist (nicht dargestellt). Diese Pleißelhalter sind an Schwenksegmenten bzw. Hobelklappen des Hobels befestigt. Der Mei-Bel 1 wird von der Kohlenstoßseite her in die Tasche eingeschwenkt, wobei er mit seinem rückwärtigen Hakenansatz 3 hinter einen Vorsprung der Tasche faßt. Zur Sicherung wird wie bekannt ein Füllstück eingelegt. Das Füllstück wird durch einen Schwerspannstift gesichert, daß die Bohrung 4 des Fußteiles 2 durchfaßt. Der Meißel 1 weist an seiner Meißelspitze 5 einen Schneideinsatz 6 auf, der vorzugsweise aus einer kleinen Hartmetallschneide besteht. Dieser Schneideinsatz 6 ist vorzugsweise eingelötet; es sind jedoch auch andere Verbindungsarten, z. B. Einpressen oder Verschraubungen, denkbar.In the drawing, 1 denotes a chisel, which consists of a There is plate-shaped forging and by means of its integrally formed Foot part 2 can be inserted into the pocket of a chisel holder (not shown). These pice holders are attached to swivel segments or flaps of the planer. The Mei-Bel 1 is swiveled into the pocket from the coal face side, whereby he grasps with his rear hook approach 3 behind a projection of the bag. As is known, a filler piece is inserted to secure it. The filler piece is through secured a heavy dowel pin that the bore 4 of the foot part 2 extends through. Of the Chisel 1 has a cutting insert 6 at its chisel tip 5, which is preferably consists of a small hard metal cutting edge. This cutting insert 6 is preferred soldered in; however, other types of connections are also possible, e.g. B. Press-in or screw connections, conceivable.
Im Abstand hinter der Hartmetallschneide 6 sind am Schneidrücken 7 Hartmetalleinsätze 8 angeordnet. Diese Hartmetalleinsätze bestehen entweder, wie beim Bodenmeißel (Figur 1 u. 2) aus stiftartigen Einsätzen 9, die mit ihrem Schaft 10 in Bohrungen 11 des Meißels 1 gepreßt sind, oder, wie in den Figuren 3 u. 4 dargestellt, aus einem Hartretallplättchen 12, das in eine Nut 13 eingelötet ist.At a distance behind the hard metal cutting edge 6 are on the cutting back 7 Hard metal inserts 8 arranged. These cemented carbide inserts exist either as in the case of the ground chisel (Figure 1 and 2) from pin-like inserts 9, which with their shank 10 are pressed into bores 11 of the chisel 1, or, as shown in Figures 3 and 4, from a hard metal plate 12 which is soldered into a groove 13.
Claims (3)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833334268 DE3334268A1 (en) | 1983-09-22 | 1983-09-22 | Pick for a winning machine working with a ploughing action, in particular a coal plough |
BE0/213673A BE900614A (en) | 1983-09-22 | 1984-09-18 | KNIFE FOR AN EXTRACTION MACHINE WORKING BY SCALING OR BLADE REMOVAL, PARTICULARLY FOR A COAL FELLING PLANER. |
PL24967084A PL249670A1 (en) | 1983-09-22 | 1984-09-20 | Mining machine cutter in particular for a coal planer |
ES1984290709U ES290709Y (en) | 1983-09-22 | 1984-09-21 | EXTRACOTRA MACHINE BLADE, ESPECIALLY CARBON BRUSH. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833334268 DE3334268A1 (en) | 1983-09-22 | 1983-09-22 | Pick for a winning machine working with a ploughing action, in particular a coal plough |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3334268A1 true DE3334268A1 (en) | 1985-04-11 |
Family
ID=6209772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19833334268 Withdrawn DE3334268A1 (en) | 1983-09-22 | 1983-09-22 | Pick for a winning machine working with a ploughing action, in particular a coal plough |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE900614A (en) |
DE (1) | DE3334268A1 (en) |
ES (1) | ES290709Y (en) |
PL (1) | PL249670A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140225418A1 (en) * | 2011-09-23 | 2014-08-14 | Element Six Gmbh | Pick tool assembly, method for making same and method for refurbishing same |
US20140327294A1 (en) * | 2013-05-02 | 2014-11-06 | Surface Preparation Technologies, Llc | Cutting tool, mounting bracket, and rotatable cutting head |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1203714B (en) * | 1964-07-22 | 1965-10-28 | Gewerk Eisenhuette Westfalia | Peeling tool, especially for the mechanical extraction of coal underground |
DE2741894A1 (en) * | 1977-09-17 | 1979-03-29 | Krupp Gmbh | TOOL FOR REMOVING ROCKS AND MINERALS |
-
1983
- 1983-09-22 DE DE19833334268 patent/DE3334268A1/en not_active Withdrawn
-
1984
- 1984-09-18 BE BE0/213673A patent/BE900614A/en not_active IP Right Cessation
- 1984-09-20 PL PL24967084A patent/PL249670A1/en unknown
- 1984-09-21 ES ES1984290709U patent/ES290709Y/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1203714B (en) * | 1964-07-22 | 1965-10-28 | Gewerk Eisenhuette Westfalia | Peeling tool, especially for the mechanical extraction of coal underground |
DE2741894A1 (en) * | 1977-09-17 | 1979-03-29 | Krupp Gmbh | TOOL FOR REMOVING ROCKS AND MINERALS |
Non-Patent Citations (1)
Title |
---|
DE-Z.: Werkstattstechnik und Maschinenbau, 43 (1953), H. 12, S. 560-566 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140225418A1 (en) * | 2011-09-23 | 2014-08-14 | Element Six Gmbh | Pick tool assembly, method for making same and method for refurbishing same |
US20140327294A1 (en) * | 2013-05-02 | 2014-11-06 | Surface Preparation Technologies, Llc | Cutting tool, mounting bracket, and rotatable cutting head |
US9573295B2 (en) * | 2013-05-02 | 2017-02-21 | Surface Preparation Technologies, Llc | Cutting tool, mounting bracket, and rotatable cutting head |
Also Published As
Publication number | Publication date |
---|---|
PL249670A1 (en) | 1985-05-07 |
ES290709Y (en) | 1986-10-16 |
ES290709U (en) | 1986-03-16 |
BE900614A (en) | 1985-01-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
8127 | New person/name/address of the applicant |
Owner name: GEWERKSCHAFT EISENHUETTE WESTFALIA GMBH, 4670 LUEN |
|
8130 | Withdrawal |