DE2932511A1 - Mine cutting roller chisel cutters spray feed - involves peripheral grooves linked to axial feed duct through shaft - Google Patents
Mine cutting roller chisel cutters spray feed - involves peripheral grooves linked to axial feed duct through shaftInfo
- Publication number
- DE2932511A1 DE2932511A1 DE19792932511 DE2932511A DE2932511A1 DE 2932511 A1 DE2932511 A1 DE 2932511A1 DE 19792932511 DE19792932511 DE 19792932511 DE 2932511 A DE2932511 A DE 2932511A DE 2932511 A1 DE2932511 A1 DE 2932511A1
- Authority
- DE
- Germany
- Prior art keywords
- recess
- shaft
- chisel
- cutters
- peripheral grooves
- 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- Withdrawn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
- 230000002093 peripheral effect Effects 0.000 title abstract 2
- 239000007921 spray Substances 0.000 title 1
- 239000007788 liquid Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 abstract description 5
- 239000000428 dust Substances 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract 1
- 238000005065 mining Methods 0.000 abstract 1
- 238000010791 quenching Methods 0.000 abstract 1
- 230000000171 quenching effect Effects 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
- E21C35/187—Mining picks; Holders therefor with arrangement of fluid-spraying nozzles
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)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Description
Die Erfindung betrifft einen Meißel, insbesondere fürThe invention relates to a chisel, in particular for
Schrämwalzen, der mit einem in einer Ausnehmung des Meißelschaftes befestigten Schneideneinsatz sowie Mit einem durch den Meißelschaft verlaufenden axialen Kanal für die Zufuhr der Berieselungsflüssigkeit versehen ist.Curing rollers with one in a recess in the chisel shaft attached cutting insert as well as with one running through the chisel shank axial channel is provided for the supply of the irrigation liquid.
Es gehören Meißel für im Gestein schlagend arbeitende Werkzeuge zum vorbekannten Stand der Technik, die mit einer Dusenvorrichtung versehen sind, aus der in Bereich der Meißel schneide zwei aus Hochdruckflü6sigkeit bestehende Flüssigkeitsstrahlen mit hoher Geschwindigkeit austreten. Ein durch den Meißelschaft verlaufender axialer Kanal dient der Flüssigkeitszufuhr zu den im Bereich der Meißel schneide in einer Ausnehmung befindlichen Düsen (DE-GM 78 07 481).There are chisels for tools that work in the rock known prior art, which are provided with a nozzle device from the one in the area of the chisel cut two jets of high pressure fluid exit at high speed. An axial one running through the chisel shank The channel is used to supply liquid to the cutting edge in the area of the chisel Nozzles located in the recess (DE-GM 78 07 481).
Auch ist bereits vorgeschlagen worden, ein Werkzeug zum Abtragen von Gestein und Mineralien mit einem stAhlernen Schaft auszustatten, dessen Querschnitt sich zur Spitze hin verjüngt und der einen axialen Spülaittelkanal aufweist. Die sich verjüngende Werkzeugspitze besteht aus einem in den Schaft eingelöteten, eingeschrumpften oder eingepreßten Hartinetallstift, der in eine Schaftausnehnung eingreift und eine sich an den Spülmittelkanal des Schaftes anschließende axiale Bohrung besitzt, die im Längsschnitt die Form einer Düse hat (deutsche Patentanmeldung P 28 17 796.0).It has also already been proposed a tool for removing To equip rocks and minerals with a steel shaft, the cross-section of which tapers towards the tip and which has an axial flushing agent channel. the The tapered tool tip consists of one that is soldered and shrunk into the shaft or pressed hard metal pin which engages in a shaft recess and a has an axial bore adjoining the flushing agent channel of the shaft, which has the shape of a nozzle in longitudinal section (German patent application P 28 17 796.0).
Aufgabe der Erfindung ist es, einen Meißel, insbesondere für Schrãxwalzen, zu schaffen, der sich durch eine besonders zweckmäßige Art der Fltkssigkeitszufuhr zu dem Schneideneinsatz auszeichnet.The object of the invention is to provide a chisel, in particular for scraping rollers, to create, which is characterized by a particularly expedient type of liquid supply to the cutting edge insert.
Dazu geht die Erfindung von dem eingangs beschriebenen Meißel aus und schlägt vor: a) den axial durch den Meißtlschaft verlaufenden Kanal in die den Schneideneinsatz aufnehmende Ausnehmung des Meißelschaftes einmünden zu lassen; b) den Schneideneinsatz und/oder die Ausnehmung des Xeißelschaftes mit mehreren über ihre Umfangsfläche verteilten Nuten zu versehen, die sich über die ganze Ausnehmungshöhe erstrekken und am Boden der Ausnehmung mit dem axialen Flüssigkeitskanal in Verbindung stehen sowie am entgegengesetzten Ende aus der Ausnehmung austreten.For this purpose, the invention is based on the chisel described at the outset and proposes: a) the channel running axially through the bit shank into the To let the cutting insert open into the recess of the chisel shaft; b) the cutting insert and / or the recess of the chisel shank with several to provide grooves distributed over its circumferential surface, which extend over the entire recess height extend and communicate at the bottom of the recess with the axial fluid channel stand and emerge from the recess at the opposite end.
Die am Ende des Meißelschaftes, aber noch unterhalb der Schneide des Schneideneinsatzes ins Freie austretende Berieselungsflüssiekeit umgibt infolgedessen den aus den Meißelschaft vorstehenden Teil des Schneideneinsatzes auf seinem ganzen Umfang. Folglich bildet die Berieselungsflüssigkeit einen Flüssigkeitsmantel, der den Schneideneinsatz nach außen völlig abschließt, die Werkzeugschneide VUhlt, den in ihrem Bereich entstehenden Feinstaub intensiv benetzt und bindet sowie entstehende Funken sofort löscht.The one at the end of the chisel shaft, but still below the cutting edge of the As a result, irrigation fluid escaping into the open surrounds the cutting insert the part of the cutting insert protruding from the chisel shank all over Scope. As a result, the sprinkling liquid forms a liquid jacket that completely closes off the cutting edge insert from the outside, the tool cutting edge VUHL, the The fine dust that arises in their area intensively wets and binds as well as those that arise Instantly extinguishes sparks.
Ein Ausführungsbeispiel der Erfindung ist in einer Abbildung dargestellt.An embodiment of the invention is shown in a figure.
Mit 1 ist der Meißel bezeichnet. Er besteht aus einen zylindrischen Teil 1b und einem sich zur Spitze hin verjüngenden,. rotationssymmetrischen Teil 1a. Im oberen Teil la des Meißels 1 ist in axialer Richtung, innerhalb einer Ausnehmung 2, ein kreisrunder, Mit einer kegelförmigen Spitze versehener Hartmetallstift 3 unlösbar befestigt. Die Spitze des Hartaetallstiftes 3 ragt aus dem Meißel 1 heraus. Der MeiBel 1 ist mit einer axialen Bohrung 4 versehen, die in die den Hartmetallstift 3 aufnehmende Ausnehmung 2 des Meißeln 1 einmündet. Über den Umfang der Ausnehmung 2 sind gleichmäßig vier Nuten 5 verteilt, die sich über die ganze Ausnehnungshöhe erstrecken, am Boden 6 der Ausnehmung 2 mit der axialen Bohrung 4 in Verbindung stehen und am entgegengesetzten Ende aus der Ausnehmung 2 austreten.With 1 the chisel is referred to. It consists of a cylindrical Part 1b and a tapering towards the tip. rotationally symmetrical part 1a. In the upper part la of the chisel 1 is in the axial direction, within a recess 2, a circular hard metal pin with a conical tip 3 inextricably attached. The tip of the hard metal pin 3 protrudes from the chisel 1. The bit 1 is provided with an axial bore 4, which is inserted into the hard metal pin 3 receiving recess 2 of the chisels 1 opens. About the scope of the recess 2, four grooves 5 are evenly distributed over the entire height of the expansion extend, at the bottom 6 of the recess 2 with the axial bore 4 in connection stand and emerge from the recess 2 at the opposite end.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792932511 DE2932511A1 (en) | 1979-08-10 | 1979-08-10 | Mine cutting roller chisel cutters spray feed - involves peripheral grooves linked to axial feed duct through shaft |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792932511 DE2932511A1 (en) | 1979-08-10 | 1979-08-10 | Mine cutting roller chisel cutters spray feed - involves peripheral grooves linked to axial feed duct through shaft |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2932511A1 true DE2932511A1 (en) | 1981-02-26 |
Family
ID=6078177
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19792932511 Withdrawn DE2932511A1 (en) | 1979-08-10 | 1979-08-10 | Mine cutting roller chisel cutters spray feed - involves peripheral grooves linked to axial feed duct through shaft |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2932511A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0111143A2 (en) * | 1982-11-13 | 1984-06-20 | VOEST-ALPINE Aktiengesellschaft | Core bit with damped guided cylindrical shank |
EP0151230A1 (en) * | 1984-02-01 | 1985-08-14 | BELZER-DOWIDAT GMBH Werkzeug-Union | Mining tool |
US4583786A (en) * | 1983-03-02 | 1986-04-22 | Padley & Venables Limited | Mineral mining pick and holder assembly |
US4765686A (en) * | 1987-10-01 | 1988-08-23 | Gte Valenite Corporation | Rotatable cutting bit for a mining machine |
-
1979
- 1979-08-10 DE DE19792932511 patent/DE2932511A1/en not_active Withdrawn
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0111143A2 (en) * | 1982-11-13 | 1984-06-20 | VOEST-ALPINE Aktiengesellschaft | Core bit with damped guided cylindrical shank |
EP0111143A3 (en) * | 1982-11-13 | 1985-11-21 | Voest-Alpine Aktiengesellschaft | Core bit with damped guided cylindrical shank |
US4583786A (en) * | 1983-03-02 | 1986-04-22 | Padley & Venables Limited | Mineral mining pick and holder assembly |
EP0151230A1 (en) * | 1984-02-01 | 1985-08-14 | BELZER-DOWIDAT GMBH Werkzeug-Union | Mining tool |
US4765686A (en) * | 1987-10-01 | 1988-08-23 | Gte Valenite Corporation | Rotatable cutting bit for a mining machine |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE4480466C2 (en) | Combination of a chisel holder and a drivable wear sleeve for a cutting machine | |
EP0111143B1 (en) | Core bit with damped guided cylindrical shank | |
DE2749830C2 (en) | Planing chisel | |
DE2802868A1 (en) | DRILLING TOOL WITH BLOW SUCTION | |
DE60216793T2 (en) | LIQUID SEAL FOR WET ANCHOR | |
DE2810606C2 (en) | Chisel for a breaking tool that works by striking the rock | |
DE19851620C2 (en) | Water-mist spraying system, in particular for partial cutting machines in line propulsion | |
DE2932511A1 (en) | Mine cutting roller chisel cutters spray feed - involves peripheral grooves linked to axial feed duct through shaft | |
EP0587991B1 (en) | Pickholder for shears drum or cutting head | |
DE3202315C2 (en) | Loosening tool for a mining machine in underground mining | |
DE2903619A1 (en) | CHISELS FOR SOLVING MINERALS, ESPECIALLY SCREW CHISELS OR PLANING KNIVES | |
DE3128049C1 (en) | Nozzle protection for a spray nozzle of a mining mining roller | |
DE3334031C2 (en) | ||
EP0141117B1 (en) | Rock and gravel drilling method and rock-drill therefor | |
EP0151230A1 (en) | Mining tool | |
DE4208973C2 (en) | Methods and devices for permanent dedusting of the working area of a type chisel | |
DE3541886A1 (en) | METHOD FOR REDUCING THE RISK OF IGNITION WHILE DRIVING ROUTES IN MINING DEPARTMENTS | |
DE3433745C2 (en) | Device for processing material with a high-speed liquid jet | |
DE1017113B (en) | Device for cleaning the pressurized water that is supplied to the nozzles by compressed air tools intended for mining for spraying during the dust precipitation | |
DE3027786C2 (en) | Cutting disc for mining machines in underground mining | |
AT392515B (en) | SCREWING HEAD FOR DEGRADING AND DRIVING MACHINES, ESPECIALLY FOR PARTIAL CUTTING MACHINES WITH CROSS-CUTTING HEAD | |
DE3115411C2 (en) | Procedure for dust control in cutting extraction | |
DE2948600A1 (en) | Coal pick for mining machine - has cylindrical threaded insert with pointed tip and recess at bottom for adjusting spanner | |
DE2716866A1 (en) | Rock drill with centering point - has four arms with cutters at tips, and centering point has helical clearance grooves | |
DE1274541B (en) | Chisel holder with conical insertion hole |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
8130 | Withdrawal |