PL135911B1 - End face cutting mining head intended for combined cutter loaders - Google Patents

End face cutting mining head intended for combined cutter loaders Download PDF

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Publication number
PL135911B1
PL135911B1 PL23566482A PL23566482A PL135911B1 PL 135911 B1 PL135911 B1 PL 135911B1 PL 23566482 A PL23566482 A PL 23566482A PL 23566482 A PL23566482 A PL 23566482A PL 135911 B1 PL135911 B1 PL 135911B1
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PL
Poland
Prior art keywords
cone
face
plates
organ
plate
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Application number
PL23566482A
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Polish (pl)
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PL235664A1 (en
Inventor
Stanislaw Wysocki
Wojciech Skoczynski
Edward Kusek
Zygmunt Jaromin
Witold Urbanczyk
Helmut Blochel
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Zabrzanskie Zaklady Naprawcze
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Priority to PL23566482A priority Critical patent/PL135911B1/en
Publication of PL235664A1 publication Critical patent/PL235664A1/en
Publication of PL135911B1 publication Critical patent/PL135911B1/en

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Description

Przedmiotem wynalazku jest bebnowy organ ura¬ biajacy do czolowego zawrebiania przeznaczony dla górniczych kombajnów weglowych.Znany z polskiego patentu nr 56 286 organ ura¬ biajacy ma na cylindryczna piaste nawiniete sli- makowo plyty uzbrojone na obwodzie w urabiajace noze. Cylindryczna piasta ma dlugosc równa sze¬ rokosci organu urabiajacego, przy czym srednica piasty na calej dlugosci jest jednakowa. Organ ma wiec zasadniczo obrys walca. Od strony ura¬ bianego wegla organ rna czolowa tarcze o zarysie kolowym zaopatrzona na obwodzie w noze urabia¬ jace. W czolowej plycie ma wyciecie laczace prze¬ strzen przed ta plyta z przestrzeniami miedzy sli¬ makowymi plytami. Przez otwory urobek z przed czolowej plyty przedostaje sie do przestrzeni mie¬ dzy slimakowymi platami i jest przez plyty trans¬ portowany wzdluz osi organu urabiajacego ku ka¬ nalowi kombajnu, gdzie jest przysypywany na pod- scianowy przenosnik.Znany z opisu patentowego RFN nr 1 349 873 or¬ gan urabiajacy jest organem slimakowym. Ma on czolowa plyte w formie stozka zwróconego podsta¬ wa ku caliznie. Na obrzezu podstawy stozkowej czolowej plyty, sa rozmieszczone urabiajace noze.Slimakowe plyty, takze uzbrajane na obrzezu w urabiajace noze rozciagaja sie wzdluz piasty or¬ ganu tylko do powierzchni stozkowej czolowej ply¬ ty. Wnetrze czolowej plyty, patrzac od strony ca- 15 ao 25 lizny ku kombajnowi, jest wiec puste, a w czasie urabiania wypelnia sie rozkruszonym weglem.Wada organu urabiajacego wedlug polskiego pa¬ tentu nr 56 286 sa duze opory tarcia organu ura¬ biajacego o calizne, co jest powodowane plaska czolowa plyta. Ponadto miedzy calizna a czolowa plyta przedostaja sie bryly urabianego wegla, który powieksza prace oporów tarcia o prace kruszenia tych bryl. Wprawdzie czolowa plyta ma otwory przez które urobek przedostaje sie mie¬ dzy transportujace slimakowe platy organu, lecz rozmiary tych otworów sa zbyt male azeby sku¬ tecznie odprowadzic urobek z przed czolowej plyty.Powiekszenie wymienionych otworów jest niemoz¬ liwe, gdyz ogranicza je rozmiar cylindrycznej pias¬ ty. Wprawdzie organ urabiajacy wedlug patentu RFN nr 1 349 873 nie trze czolowa plyta o calizne dzieki stozkowej formie tej plyty, jednakze wne¬ trze stozka wypelnia sie w czasie urabiania bry¬ lami wegla, które na skutek obrotowego ruchu organu i ocierania sie wzajemnego urobku ulegaja kruszeniu na drobne bryly. Jest to wada tego or¬ ganu, gdyz zwieksza opory urabiania, a na skutek braku otworów w czolowej plycie urobek nie moze przenikac miedzy slimakowe platy, skad bylby od¬ transportowany na podscianowy przenosnik. Wady organów wedlug polskiego patentu nr 56 286 oraz patentu RFN nr 1 349 873, powoduja, iz organy te nie nadaja sie do pracy kombajnu z tak zwanym wcinaniem, czyli przechodzenia do urabiania nas- 135 9112 135 911 4 tepnej warstwy pokladu przez wcinanie sie tym organem w calizne ruchem zlozonym z ruchów wzdluz sciany i jednoczesnego ruchu prostopadle do czola sciany. Wymienione organy wymagaja wykonania wnek w' czole sciany w formie komór wykonywanych na obu koncach sciany za pomoca materialów wybuchowych.Celem wynalazku jest organ, który nadaje sie do wcinania w czolo sciany, przy czym wykony¬ wanie tej operacji powinno sie odbywac przy mnimalnych oporach.Cel. ten wedlug wynalazku osiagnieto przez to, ze czesc piasty organu od strony czola jest uk¬ sztaltowana w formie stozka. Stozek zwrócony jest wierzcholkiem ku czolu sciany. Organ ma od czola plyty, których plaszczyzna jest równo¬ legla do czola sciany, a plyty siegaja od obwo¬ du organu do stozka. Zarys plyt zweza sie ku stozkowi, przez co powstaja rozlegle wolne prze¬ strzenie w czole organu. Krawedzie plyt obwo¬ dowa i promieniowa sa zaopatrzone w nozowe uch¬ wyty z nozami. Wierzcholkowy kat stozka zawiera sie w granicach 15°—60°.Przedmiot wynalazku w przykladzie wykonania przedstawiono na rysunku na którym fig. 1 jest przekrojem wzdluznym przez organ, a fig. 2 jest widokiem Organu od czola. Piasta 6 ma ksztalt cy¬ lindryczny lecz w czesci od strony czola przecho¬ dzi w zarys stozka 5 zwróconego wierzcholkiem ku czolu sciany. Wewnatrz piasty 6 jest osadzony pierscien 2 z wymienna tuleja 13. Otwór 14 tulei 13 jest otworem wielowypustowym badz jest za¬ opatrzony w rowki na wpusty. Otwór 14 sluzy do osadzania organu na wale kombajnu. Na zew¬ netrznej powierzchni piasty 6 i stozka 5 sa zamo¬ cowane slimakowe plyty 1£ rozciagajace sie na calej dlugosci stozka 5 i piasty 6. Od czola orga¬ nu do platów 15 sa zamocowane plyty 1. Plyta 1 jest ograniczona obwodowa krawedzia 10, promie- 35 niowa krawedzia 7 i tylna krowedzia 11, tak, ze zarys plyty 1 zweza sie w kierunku stozka 5. Dzie¬ ki temu miedzy promieniowa krawedzia 7 jednej plyty 1, a tylna krawedzia 11 nastepnej plyty 1 pozostaje rozlegla swobodna przestrzen 12. Promie¬ niowa krawedz 7 i obwodowa krawedz 10 plyt 1 sa zaopatrzone w nozowe plyty 3, w których tkwia noze 8. Zewnetrzna srednica D piasty 6 i srednica d sciecia stozka 5 maja sie do siebie jak 4 : 3 lub mniej. Kat stozka 5 ma od 15°—60°.Organ roboczy pracuje obracajac sie wokól osi 9 w takim kierunku iz naciera na urobiony wegiel promieniowymi krawedziami 7. Wegiel urobiany nozami ostdzonymi na promieniowych krawedziach 7 przedostaje sie swobodnymi przestrzeniami 12 miedzy platy 15. Wirujace piaty 15 dzialaja jak przenosnik slimakowy i transportuja urobiony we¬ giel wzdluz osi 9. Urobek spada z platów 9 na przenosnik, który znajduje sie poza organem ro¬ boczym w obszarze, gdzie na rysunku zaznaczono srednice D.Zastrzezenia patentowe 1. Bebnowy organ urabiajacy do czolowego za- wrebiania przeznaczony dla górniczych kombajnów weglowych, posiadajacy piaste, na zewnatrz której ma osadzone slimakowe platy, jest zaopatrzony od czola w noze urabiajace, znamienny tym, ze ma czesc piasty (6) od strony czola uksztaltowana w formie stozka (5) zwróconego wierzcholkiem ku czolu sciany, i ma od czola plyty (1), których plasz¬ czyzna jest równolegla do czola sciany, siegajace od obudowy krawedzi (10) organu do stozka (5), których zarys zweza sie ku stozkowi (5), a kra¬ wedzie plyt (1) obwodowa (10) i promieniowa (7) sa zaopatrzone w nozowe uchwyty (3) z nozami (8). 2. Bebnowy organ urabiajacy wedlug zastrz. 1, znamienny tym, ze wierzcholokowy kat a stozka (5) zawiera sie w granicach 15°—60°.OZGraf. Z.P. Dz-wo, z. 528 (95+15) 11.86 Om IM ii PLThe subject of the invention is a drum for cutting head cutting intended for mining coal harvesters. The mining drum, known from Polish patent No. 56,286, has, on a cylindrical hub, wound plates, armed with cutting knives on the circumference. The cylindrical hub has a length equal to the width of the cutting drum, the diameter of the hub being the same over its entire length. The organ therefore essentially has the outline of a cylinder. On the side of the mined coal, the frontal discs with a circular shape are provided with cutting knives on the circumference. The front plate has a cut-off connecting the space in front of this plate with the spaces between the silica plates. Through the openings, the output from the frontal plate enters the space between the screw-shaped plates and is transported through the plates along the axis of the cutting drum towards the roadheader, where it is covered with a sub-wall conveyor. Known from the German patent specification No. 1,349 873 The mining organ is a spiral organ. It has a cone-shaped frontal plate facing the base completely. Machine knives are disposed at the periphery of the conical base of the faceplate. The helical plates, also armed with working knives at the periphery, extend along the organ hub only to the conical surface of the faceplate. The interior of the front plate, looking from the side of the slab towards the combine, is therefore empty, and during mining it fills with crushed coal. Defects of the cutting drum according to Polish patent No. 56,286 are high frictional resistance of the cutting head to the total, which is caused by the flat face plate. Moreover, lumps of mined coal pass between the face plate and the face plate, which increases the work of frictional resistance against the work of crushing these bodies. Although the front plate has holes through which the debris passes between the transporting snail plates of the drum, the dimensions of these openings are too small to effectively remove the debris from the front plate. Enlargement of the above-mentioned openings is impossible, as they are limited by the size of the cylindrical sand. May. Although the mining organ, according to the German patent No. 1,349,873, does not rub the front plate completely due to the conical shape of the plate, the inside of the cone fills up with lumps of coal during the cutting process, which, as a result of the rotational movement of the drum and rubbing against each other, are crushed for small lumps. This is a disadvantage of this organ, because it increases the cutting resistance, and due to the lack of openings in the front plate, the debris cannot penetrate between the screw plates, from where it would be transported to the under-wall conveyor. Defects of the organs according to the Polish patent No. 56,286 and the German patent No. 1,349,873 make these organs unsuitable for the operation of the shearer with the so-called cutting, i.e. switching to the cutting of the seam - 135 9112 135 911 4 of the blunt layer of the seam by cutting it organ in a complete movement consisting of movements along the wall and simultaneous movement perpendicular to the face of the wall. The above-mentioned organs require the recesses in the forehead of the wall to be made in the form of chambers at both ends of the wall with explosives. The object of the invention is an organ that can be cut into the face of the wall, and this operation should be performed with minimal resistance. Objective. This, according to the invention, is achieved by the fact that the end-face portion of the hub of the organ is shaped like a cone. The top of the cone is facing the face of the wall. From the forehead, the organ has plates whose plane is parallel to the face of the wall, and the plates extend from the circumference of the organ to the cone. The outline of the plates tapers towards the cone, thus creating vast free spaces in the forehead of the organ. The edges of the perimeter and radial plates are provided with knife handles with knives. The apical angle of the cone is in the range 15 ° -60 °. The subject matter of the invention is shown in the drawing in which Fig. 1 is a longitudinal section through the organ, and Fig. 2 is a forehead view of the Organ. The hub 6 has a cylindrical shape, but partially from the end face, it passes into the contour of the cone 5 facing the face of the wall. Inside the hub 6 is mounted a ring 2 with a replaceable sleeve 13. The bore 14 of the sleeve 13 is a splined bore or is provided with grooves for keyways. The hole 14 is used to seat the head on the combine's shaft. On the outer surface of the hub 6 and the cone 5 are mounted worm plates 1 £, extending over the entire length of the cone 5 and the hubs 6. From the front of the organ to the lobes 15, plates 1 are fixed. The plate 1 is bounded by the circumferential edge 10, the radial edge 7 and the rear edge 11, so that the outline of the plate 1 tapers towards the cone 5. As a result, between the radial edge 7 of one plate 1 and the rear edge 11 of the next plate 1 there is a large free space 12. The beam The cutting edge 7 and the circumferential edge 10 of the plates 1 are provided with knife plates 3 in which the blades 8 are inserted. The outer diameter D of the hub 6 and the diameter d of the cone 5 are to each other as 4: 3 or less. The cone angle 5 has a 15 ° -60 ° angle. The working organ rotates around the axis 9 in this direction and presses against the mined coal with its radial edges 7. Coal minced with knives cooled on the radial edges 7 gets through free spaces 12 between the lobes 15. Rotating saw blades 15 act as a screw conveyor and transport the mined coal along the axis 9. The debris falls from the plates 9 onto the conveyor, which is located outside the working body in the area where the diameters are shown in the figure D. Patent claims 1. Drum cutting drum to the front end Notching intended for coal mining harvesters, having a hub, on the outside of which it has snail plates embedded, is equipped from the forehead with cutting knives, characterized by the fact that it has a part of the hub (6) on the side of the forehead shaped in the form of a cone (5) facing the top towards the face of the wall, and has a plate (1) from the face, the plane of which is parallel to the face of the wall, and extending from the edge casing (10) to the cone (5), the outline of which tapers towards the cone (5), and the edges of the circumferential (10) and radial (7) plates (1) are provided with knife holders (3) with knives (8). 2. Drum cutting organ according to claim The method according to claim 1, characterized in that the cone (5) apex angle is in the range 15 ° -60 °. GRAPH. Z.P. Dz-wo, z. 528 (95 + 15) 11.86 Om IM ii PL

Claims (2)

Zastrzezenia patentowe 1. Bebnowy organ urabiajacy do czolowego za- wrebiania przeznaczony dla górniczych kombajnów weglowych, posiadajacy piaste, na zewnatrz której ma osadzone slimakowe platy, jest zaopatrzony od czola w noze urabiajace, znamienny tym, ze ma czesc piasty (6) od strony czola uksztaltowana w formie stozka (5) zwróconego wierzcholkiem ku czolu sciany, i ma od czola plyty (1), których plasz¬ czyzna jest równolegla do czola sciany, siegajace od obudowy krawedzi (10) organu do stozka (5), których zarys zweza sie ku stozkowi (5), a kra¬ wedzie plyt (1) obwodowa (10) i promieniowa (7) sa zaopatrzone w nozowe uchwyty (3) z nozami (8). Claims 1. Drum cutting head for frontal notching, intended for mining coal harvesters, having a hub, on the outside of which it has worm-shaped plates, is equipped from the forehead with cutting knives, characterized by the fact that it has a hub part (6) on the forehead side shaped as a cone (5) facing the face of the wall, and has a plate (1) from the face of the plate (1), the plane of which is parallel to the face of the wall, extending from the casing of the edge (10) of the organ to the cone (5), whose outline narrows towards the cone (5), and the peripheral (10) and radial (7) edges of the plates (1) are provided with knife holders (3) with knives (8). 2. Bebnowy organ urabiajacy wedlug zastrz. 1, znamienny tym, ze wierzcholokowy kat a stozka (5) zawiera sie w granicach 15°—60°. OZGraf. Z.P. Dz-wo, z. 528 (95+15) 11.86 Om IM ii PL2. Drum cutting organ according to claim The method according to claim 1, characterized in that the ridge angle a of the cone (5) is in the range 15 ° -60 °. OZGraf. Z.P. Dz-wo, z. 528 (95 + 15) 11.86 Om IM ii PL
PL23566482A 1982-03-25 1982-03-25 End face cutting mining head intended for combined cutter loaders PL135911B1 (en)

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PL23566482A PL135911B1 (en) 1982-03-25 1982-03-25 End face cutting mining head intended for combined cutter loaders

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PL23566482A PL135911B1 (en) 1982-03-25 1982-03-25 End face cutting mining head intended for combined cutter loaders

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PL235664A1 PL235664A1 (en) 1983-09-26
PL135911B1 true PL135911B1 (en) 1985-12-31

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