PL141732B1 - Mining head for mechanized coal miners - Google Patents

Mining head for mechanized coal miners Download PDF

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Publication number
PL141732B1
PL141732B1 PL24457183A PL24457183A PL141732B1 PL 141732 B1 PL141732 B1 PL 141732B1 PL 24457183 A PL24457183 A PL 24457183A PL 24457183 A PL24457183 A PL 24457183A PL 141732 B1 PL141732 B1 PL 141732B1
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PL
Poland
Prior art keywords
plate
edge
segment
mining
segments
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PL24457183A
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Polish (pl)
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PL244571A1 (en
Inventor
Leonard Liduchowski
Stanislaw Orzechowski
Zygmunt Jaromin
Boleslaw Szymczyk
Helmut Blochel
Pawel Zok
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Kopalnia Wegla Kamiennego Stas
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Priority to PL24457183A priority Critical patent/PL141732B1/en
Publication of PL244571A1 publication Critical patent/PL244571A1/en
Publication of PL141732B1 publication Critical patent/PL141732B1/en

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Przedmiotem wynalazku jest organ urabiajacy do górniczych kombajnów weglowych, zawierajacy piaste do osadzania organu na wale napedowym kombajnu, która to piasta na zewnetrznej powierz¬ chni ma zamocowane srubowo zwiniete platy ladu¬ jace zwiazane od czola w obszarze ich krawedzi obwodowych stozkowymi segmentami tworzacymi powierzchnie stozkowa scieta zwrócona podstawa w kierunku czola organu, a segmenty te sa zaopa¬ trzone na obwodzie w tnace noze.Znany z polskiego opisu patentowego nr 128 042 organ urabiajacy ma ladujace platy polaczone od czola organu stozkowymi segmentami. Segmenty te przez ich stozkowy ksztalt tworza wneki w miejscu laczenia ich ze srubowymi platami. Przez to koniec plata wystaje od czola organu poza segmenty stoz¬ kowe. "Wspomniana wneka istniejaca w miejscu laczenia plata ladujacego ze stozkowym segmen¬ tem powoduje niedokladne ladowanie urobionego wegla przez organ urabiajacy. Powoduje to, ze zgromadzony we wnece urobek tamuje przeplyw urobku wzdluz osi organu. W tej konstrukcji orga¬ nu czesc srubowego plata w miejscu laczenia go ze stozkowymi segmentami musi byc w tej czesci szczególnie masywnie wykonana, aby skutecznie przeciwstawiac sie silom gnacym oddzialywujacym na ten fragment srubowego plata. To ten fragment plata spelnia zasadnicza role przy ladowaniu urob¬ ku i dlatego jest on bardziej obciazony niz inne jego czesci znajdujace sie blizej kombajnu poza 10 15 stozkowymi gtig*ttentami. Ma to &fze *%ft*e£ettie zwla&ttza w organach u^afeiajacytih ^ako • spawane z-telaCh.^Znany z :pfcl*teiego 'Spisu -gatenttt^tefgo nr ttf&SSNH) organ 4ira»bfcajacy ima #lasfea taarae ''•pier&dtttótJWa osadzona 'trwale ^na -slitaakowych -^Hitach tflg&ttU.Do tarczy:sa^tomocow bianego rw^a. ^Zgarntoki rnafa -postac profctofc4t- nych r.plyt zamoc&wmyth 1dluznym :fcekt«fn ^flo wspomnianej tarezy, «a 9teie2&mtttykh *5toófarte wzgledem gromienia ©tgttMi pod teatetti J3(H^)° zgodnie z kiefunM«m '¥8bocayfti 4&br©tów brgaftu.Zadaniem zgaratoków #tót nagarnianie u#dbi6fi£go wegla z czolowej strony organu na ladujgfe *§fr- makowe; platy, a pfBez ~to iaapobteganie kiftwasniu brtl tuegia^^oi obniza ich wartosc. owanie zganatóków swrtekBBa o¥*a*y -psacy ^#gawu.Celem -wymlasku 4est -aegsn -«rtfblaj$fcy, W&fi&go srubowe tfteity aadu&ice -sa ^d i&zola organu ^pola¬ czone stozkowymi ^gsgmeittómi, & koA^WMa <<<«tSc plata od strony &t0zfkowych sa&m*A*óiw ijest -ssdoJrta przenosic sily poptaeczne jpt-zy ^fctejtttój ^kdttstf tego plata. Celem jett takte 4ik«ztalto^nle^gaMitt, aby imógl cfcyc'wyfcowywatiy jako ^leoftfetfUJtfcja c&p&- wana badz ©tlletKana, Istota wynakuzku. jest organ urabiajacy ae «gar- niakami na czolowej tarczy pierscieniowej ^spelnia¬ jacym zarazem rc4e wzmocnienia .plata ladujacego w jego fragmencie najbardziej obciazonym silami.Organ urabiajacy wedlug wynalazku ma zgarnia- 141 732141 732 4 kowa blache o zarysie krójkata zamocowana jed¬ nym bokiem do wewnetrznej powierzchni stozko¬ wego segmentu laczacego ladujace platy, a prze¬ ciwleglym do wymienionego boku wierzcholkiem zamocowana do czolowej krawedzi srubowego la¬ dujacego plata', orgapu. Powierzchnie miedzy zgar¬ niakowa blach'4 " i stozkowym segmentem organ hrabiajacy ma zamknieta czolowa blache polaczo¬ na z platem ladujacym wzdluz jego czolowej kra¬ wedzi. - Powierzchnia miedzy zgarniakowa blacha a"stÓzlfówym segmentem od strony wnetrza organu jest zamknieta stezeniowa blacha polaczona z pla¬ tem ladujacym. Korzystnie krawedz laczaca zgar¬ niakowa blache ze stozkowym segmentem lezy w plaszczyznie przechodzacej przez os obrotu organu, a sferyczny kat miedzy zgarniakowa blacha a po¬ wierzchnia plata wynosi 30—60°. Krawedz prze¬ ciecia czolowej blachy ze stozkowym segmentem jest skosna wzgledem zewnetrznej kolowej kra¬ wedzi segmentu.Przedmiot wynalazku przedstawiono na rysun¬ ku w przykladzie wykonania spawanego organu z blach stalowych, na którym fig. 1 jest widokiem organu od czola, fig. 2 — widokiem z boku, fig. 3 — przekrojem przez organ plaszczyzna pro¬ mieniowa, fig. 4 — rysunkiem perspektywicznym fragmentu organu z urzadzeniem ladujacym.Piasta 24 sluzy do osadzenia organu urabiajacego na wale napedowym kombajnu górniczego i zara¬ zem jest elementem centralnym organu urabiaja¬ cego, na którym zbudowana jest cala konstrukcja organu. Do zewnetrznej powierzchni piasty 24 sa zamocowane srubowo zwiniete ladujace platy 1 rozciagajace sde na cala dlugosc piasty 24. Od stro¬ ny czola organu ladujacego platy 1 sa wzajemnie polaczone stozkowymi segmentami 2, które to segmenty tworza w zestawienu stozek sciety 2a zwrócony wieksza podstawa ku czolu organu.Mniejsza podstawa stozka 2a ma promien 20.Kazdy z segmentów 2 laczy dwa sasiadujace ze soba ladujace platy 1 w obszarze ich zewnetrznego obwodu, laczac sie z kazdym z nich wzdluz kra¬ wedzi 4 z ladujaca powierzchnia 5 i wzdluz kra¬ wedzi 6 po drugiej stronie plata 1. Segmenty 2 maja na zewnetrznej powierzchni zamocowane imaki 22, a w nich maja osadzone urabiajace noze 23.Miedzy kazdym segmentem 2 i platem 1 organ urabiajacy ma zgarniakowa blache 12. Ma ona zarys krójkata polaczonego jednym bokiem z segmentem 2 wzdluz krawedzi 16, wierzcholkiem naprzeciwleglym wzgledem krawedzi 16 polaczo¬ nego z czolowa krawedzia 3 plata 1. Jest korzyst¬ nie, aby krawedz 16 byla usytuowana w plasz¬ czyznie przechodzacej przez os 21 organu urabiaja¬ cego. Zgarniakowa blacha 12 ma tak dobrane wy¬ miary, aby tworzyla z powierzchnia plata 1 w miejscu polaczenia kat sferyczny 30—60°.Powierzchnia miedzy zgarniakowa blacha 12 a platem 1 od strony czola organu urabiajacego jest zakryta czolowa blacha 8. Blacha 8 laczy sie ze zgarniakowa blacha 12 wzdluz krawedzi 10 i blachy te sa do siebie nachylone pod katem pros¬ tym. Blacha 8 laczy sie z segmentem 2 wzdluz wkrawedzi 7 skosnej wzledem zewnetrznej kra¬ wedzi segmentu 2. Krawedz 7 zbliza sie do zew¬ netrznej krawedzi segmentu 2 od strony zbiegania sie z krawedzia 10, wzdluz której lacza sie zgarnia¬ kowa blacha 12 z czolowa blacha 8. Powierzchnia miedzy zgarniakowa blacha 12 a segmentem 2 od 5 strony wnetrza organu jest zakryta stezeniowa bla¬ cha 13 laczaca sie ze zgarniakowa blacha 12 wzdluz krawedzi 15, a z segmentem 2 wzdluz krawedzi 18.Krawedz 18 jest wygieta promieniem 17 zakreslo¬ nym z osi 21 organu urabiajacego, który to pro- 10 mien 17 jest nie mniejszy od promienia 20. Do plata 1 stezajaca blacha 13 jest przylaczona wzdluz krawedzi 19. Role elementu ladujacego spelnia zgarniakowa blacha 12, natomiast blachy 8 i 13 sa w zasadzie elementami usztywniajacymi. 15 Organ urabiajacy ogladany od czola na fig. 1 obraca sie w lewo. Noze 23 urabiaja wegiel, któ¬ rego bryly wpadaja miedzy platy 1 i na segmen¬ ty 2. Bryly wegla stykaja sie z segmentami 2 prze¬ suwaja sie wzdluz powierzchni segmentów 2 na 20 skutek ruchu obrotowego organu urabiajacego i natrafiaja na zgarniakowa blache 12. Nachylenie zgarniakowej blachy 12 powoduje, ze bryly wegla sa skierowane na powierzchnie 5 platów 1, które transportuja wegiel w strone kadluba kombajnu 25 i zrzucaja go na przenosnik, po którym przesuwa sie kombajn. Blacha 12 powoduje lagodny splyw strugi urobionego wegla na platy 1. Nachylenie krawedzi 7 wzgledem zewnetrznej krawedzi seg¬ mentów 2 powoduje, ze nie wystepuje tarcie mie- 30 dzy blacha 8 a sciana urobionego wegla, gdyz po¬ wierzchnia blachy 8 cofa sie poczawszy od kra¬ wedzi 10 wzgledem czola organu urabiajacego.Zastrzezenia patentowe 1. Ogran urabiajacy do górniczych kombajnów weglowych, zawierajacych piaste sluzaca do osa¬ dzania organu na wal napedowy kombajnu, która to piasta ma zamocowane do jej zewnetrznej po¬ wierzchni srubowo zwiniete platy ladujace zwia¬ zane od czola w obszarze ich krawedzi obwodo- 40 wych segmentami tarczy pierscieniowej zwrócony wieksza podstawa w kierunku czola organu, seg¬ menty te sa zaopatrzone na obwodzie w tnace noze a od czola w zgarniaki, znamienny tym, ze zgar- niaki sa utworzone z zgarniakowej blachy (12) o zarysie trójkata zamocowanej jednym blokiem wzdluz krawedzi (16) do wewnetrznej powierzchni segmentów (2), a przeciwleglym do boku wzdluz krawedzi (16) wierzcholkiem zamocowanej do czo¬ lowej krawedzi (3) srubowego plata (1), a powierz¬ chnie miedzy zgarniakowa blacha (12) i segmentem (2) maja zamknieta czolowa blache (8) polaczona z platem (1) wzdluz jego czolowej krawedzi (3), zas powierzchnie miedzy zgarniakowa blacha (12) a segmentem (2) od strony wnetrza organu urabia¬ jacego zamyka stezeniowa blacha (13) polaczona z platem (1). 2. Organ urabiajacy wedlug zastrz. 1, znamienny tym, ze krawedz (16) laczaca zgarniakowa blacha en (12) z segmentem (2) lezy w plaszczyznie przecho- 60 dzacej przez os (21) obrotu organu. 3. Organ urabiajacy wedlug zastrz. 2, znamienny tym, ze sferyczny kat miedzy zgarniakowa blacha (12) a powierzchnia plata (1) w miejscu ich zetknie- g- cia wynosi najkorzystniej 30-—60°.141 732 4. Organ urabiajacy wedlug zastrz. 3, znamienny tym, ze krawedz (7) przeciecia czolowej blachy (8) z segmentem (2) jest skosna wzgledem zewnetrznej kolowej krawedzi segmentu (2). 5. Organ urabiajacy wedlug zastrz. 4, znamienny tym, ze krawedz (18) przeciecia stezeniowej blachy 6 (13) z segmentem (2) ma zarys kolowy o promieniu (17) nie mniejszym od promienia (20) krawedzi wewnetrznej segmentu (2). 6. Organ urabiajacy wedlug zastrz. 5, znamienny tym, ze kat sferyczny miedzy zgarniakowa blacha (12) a czolowa blacha (8) jest katem prostym.141 732 AA 1 In £_ Rg.3 Fig. 4 OZGraf. 2.P. Dz-wo, z. 1026 (90+15) 88.05 Cena 130 zl PLThe subject of the invention is a cutting drum for coal mining shearers, comprising a hub for mounting the head on the driving shaft of the roadheader, which hub on the outer surface has screw-wound landing plates fixed at the front in the area of their peripheral edges with conical segments forming conical surfaces. The base is turned towards the head of the drum, and these segments are circumferentially equipped with cutting knives. The cutting drum, known from Polish patent specification No. 128,042, has landing plates connected from the face of the drum by conical segments. These segments, due to their conical shape, create recesses at the point of joining them with the helical panels. Thereby the end of the plate protrudes from the face of the organ beyond the tapered segments. "The aforementioned cavity, existing at the point of joining the landing plate with the conical segment, causes inaccurate loading of the mined coal by the mining head. This causes that the spoil accumulated in the cavity obstructs the flow of the spoil along the axis of the head. In this structure of the organ, a part of the helical plate at the joint is it with conical segments must be made particularly solidly in this part in order to effectively resist the bending forces affecting this part of the helical plate.It is this part of the helical plate that plays an essential role in loading the excavated material and therefore it is more loaded than its other parts. closer to the combine except 10 15 conical gtig * ttentami. This has & fze *% ft * e £ ettie zwla & ttza in the organs u ^ afeiajacytih ^ ako • welded with-telaCh. ^ Known from: pfcl * teiego 'Spisu -gatenttt ^ tefgo nr ttf & SSNH) organ 4ira »bfcajacy ima #lasfea taarae '' • pier & dtttótJWa embedded 'permanently ^ on -slitaak - ^ Hitach tflg & ttU.To the shield: are ^ the fruits of the beaten tear ^ a. ^ Zgarntoki rnafa -form profctofc4tnych r.plyt fix & wmyth 1dluznym: fcekt «fn ^ flo of the aforementioned tareza,« a 9teie2 & mtttykh * 5toófarte relative to the lightning © tgttMi pod teatetti J3 (H ^) ° according to kiefunM «m '¥ 8bocayfti 4 & brattu © tów # z Zgaftu. the scaling of carbon from the front side of the body onto the impingement * §fr- makowe; platy, and pfBez ~ this iaapobteganie kiftwasniu brtl tuegia ^^ o and lowers their value. zganatóków swrtekBBa o ¥ * a * y-dogsacy ^ # gawu. The aim of -wymlasku 4est -aegsn - «rtfblaj $ fcy, W & fi & go screw tfteity aadu & ice -sa ^ d i & zola organ ^ poles¬ connected with conical ^ gsgmeAittómi <& << «tSc plata from the side of & t0zfkowe sa & m * A * óiw i is -ssdoJrta to transfer post-mortem forces jpt-zy ^ fctejttthis ^ kdttstf this plata. The purpose of the tacte is 4ik "ztalto ^ nle ^ gaMitt, so that it can be rendered effective as a" leoftheftfetf "c & p & - valid or tactic, the essence of extinction. is the mining organ, ae "pots on the front annular disc, and fulfilling the reinforcement at the same time. The landing strand in its most force-loaded part. The mining organ, according to the invention, has a scraper plate with a one-sided outline attached to the side. to the inner surface of the conical segment connecting the loading plates, and a top opposite to said side is attached to the leading edge of the helical landing plate, the orgap. The surfaces between the scraper plate 4 "and the conical segment of the counting organ have a closed front plate connected to the landing plate along its leading edge. - The surface between the scraper plate and the" table-shaped segment from the inside of the organ is closed with a steel joint plate. the landing plaque. Preferably, the edge connecting the scraper plate to the conical segment lies in a plane passing through the axis of rotation of the drum, and the spherical angle between the scraper plate and the surface of the plate is 30-60 °. The cutting edge of the front plate with the conical segment is inclined with respect to the outer circular edge of the segment. The subject of the invention is shown in the drawing in an example of a welded organ made of steel sheets, in which Fig. 1 is a view of the head from the end, Fig. 2 - side view, Fig. 3 - a radial plane through the cutter, Fig. 4 - a perspective drawing of a part of the drum with a loading device. Hub 24 serves to mount the cutting head on the drive shaft of the mining shearer and is the central element of the mining drum on which the whole structure of the organ is built. Attached to the outer surface of the hub 24 are helically curled landing plates 1, extending the legs over the entire length of the hub 24. On the side of the landing body, the plates 1 are interconnected by conical segments 2, which segments in the assembly form a cone 2a facing the larger base towards the front The smaller base of the cone 2a has a radius of 20. Each of the segments 2 connects two adjacent landing lobes 1 in the area of their outer periphery, joining each of them along the edge of the wedge 4 with the landing surface 5 and along the edge of the wedge 6 on on the other side of the plate 1. The segments on the 2 have, on the outer surface, clamps 22, and cutting knives 23 are embedded in them. Between each segment 2 and the plate 1, the cutting organ has a scraper plate 12. It has the outline of a triangle connected with one side to the segment 2 along the edge 16 with the apex opposite the edge 16 joined to the leading edge 3 of plate 1. It is preferable that the edge 16 is located in the plane passing through the axis 21 of the cutting drum. The scraper plate 12 is dimensioned so that it forms a spherical angle 30-60 ° with the surface at the junction point. The surface between the scraper plate 12 and plate 1 on the side of the cutting head face is covered with the front plate 8. The plate 8 joins with scraper plate 12 along edge 10 and the plates are inclined to each other at a right angle. The plate 8 joins the segment 2 along the edge 7 of the oblique along the outer edge of the segment 2. The edge 7 approaches the outer edge of the segment 2 from the side of the convergence of the edge 10, along which the scraper plate 12 joins the front plate 8. The surface between the scraper plate 12 and the segment 2 on the side of the interior of the drum is covered by the bracing plate 13 joining the scraper plate 12 along the edge 15 and with the segment 2 along the edge 18. The edge 18 is curved with a radius 17 extending from the axis 21 of the cutting drum, which radius 17 is not smaller than the radius 20. A clamping plate 13 is connected to plate 1 along the edge 19. The role of the loading element is performed by the scraper plate 12, while the plates 8 and 13 are essentially stiffening elements. 15 The cutterhead viewed from the forehead in Fig. 1 rotates to the left. The knives 23 work the coal, the lumps of which fall between the lobes 1 and the segments 2. The coal blocks contact the segments 2, they move along the surface of the segments 2 due to the rotational movement of the cutting drum, and meet the scraper plate 12. The slope of the scraper plate 12 causes the lumps of coal to face the surfaces 5 of the plates 1 which transport the coal towards the body of the combine 25 and drop it onto the conveyor over which the combine moves. The plate 12 causes a gentle flow of the mined coal onto the plates 1. The inclination of the edge 7 in relation to the outer edge of the segments 2 causes that there is no friction between the plate 8 and the wall of the mined coal, because the surface of the plate 8 retracts from the edge. According to the head of the cutting drum. Patent claims 1. A cutting tail for coal mining shearers, containing hubs for settling the head on the driving shaft of the shearer, which hub has a coiled loading plate screwed to its outer surface from the front, in the area of their peripheral edges, the larger base is turned towards the head of the organ with the segments of the circumferential disc, these segments are circumferentially provided with cutting knives, and on the front with scrapers, characterized in that the scrapers are made of a scraper sheet (12) with the outline of a triangle fastened with one block along the edge (16) to the inner surface of the segments (2), and opposite to the side along k the rake (16) with the top of the helical plate (1) attached to the leading edge (3), and the surfaces between the scraper plate (12) and the segment (2) have a closed front plate (8) connected to the plate (1) along its the leading edge (3), and the surfaces between the scraper plate (12) and the segment (2) from the inside of the cutting drum are closed by a clamping plate (13) connected to the plate (1). 2. The mining organ according to claim The method of claim 1, characterized in that the edge (16) joining the scraper plate en (12) to the segment (2) lies in a plane passing through the axis (21) of rotation of the drum. 3. The mining organ according to claim A cutting organ according to claim 2, characterized in that the spherical angle between the scraper plate (12) and the surface of the plate (1) at their contact point is most preferably 30-60 °. 141 732. 6. A method according to claim 3, characterized in that the intersection edge (7) of the end plate (8) with the segment (2) is oblique with respect to the outer circular edge of the segment (2). 5. The mining organ according to claim 4. A method according to claim 4, characterized in that the edge (18) of the intersection of the bracing plate 6 (13) with the segment (2) has a circular profile with a radius (17) not smaller than the radius (20) of the inner edge of the segment (2). 6. The mining organ according to claim The method according to claim 5, characterized in that the spherical angle between the scraper plate (12) and the end plate (8) is a right angle. 141 732 AA 1 In £ _ Rg. 3 2.P. Dz-wo, z. 1026 (90 + 15) 88.05 Price PLN 130 PL

Claims (4)

Zastrzezenia patentowe 1. Ogran urabiajacy do górniczych kombajnów weglowych, zawierajacych piaste sluzaca do osa¬ dzania organu na wal napedowy kombajnu, która to piasta ma zamocowane do jej zewnetrznej po¬ wierzchni srubowo zwiniete platy ladujace zwia¬ zane od czola w obszarze ich krawedzi obwodo- 40 wych segmentami tarczy pierscieniowej zwrócony wieksza podstawa w kierunku czola organu, seg¬ menty te sa zaopatrzone na obwodzie w tnace noze a od czola w zgarniaki, znamienny tym, ze zgar- niaki sa utworzone z zgarniakowej blachy (12) o zarysie trójkata zamocowanej jednym blokiem wzdluz krawedzi (16) do wewnetrznej powierzchni segmentów (2), a przeciwleglym do boku wzdluz krawedzi (16) wierzcholkiem zamocowanej do czo¬ lowej krawedzi (3) srubowego plata (1), a powierz¬ chnie miedzy zgarniakowa blacha (12) i segmentem (2) maja zamknieta czolowa blache (8) polaczona z platem (1) wzdluz jego czolowej krawedzi (3), zas powierzchnie miedzy zgarniakowa blacha (12) a segmentem (2) od strony wnetrza organu urabia¬ jacego zamyka stezeniowa blacha (13) polaczona z platem (1). Claims 1. A mining target for coal mining harvesters, including hubs used to settle the head on the driving shaft of the roadheader, the hub having helically wound loading plates fixed to its outer surface, bonded to the front in the area of their circumferential edge. With 40 segments of the ring disk facing the head of the drum, these segments are provided on their circumference with cutting knives and on the front with scrapers, characterized in that the scrapers are made of a scraper sheet (12) with the outline of a triangle fixed by one with a block along the edge (16) to the inner surface of the segments (2), and along the edge (16) opposite to the side along the edge (16) with the top of a helical plate (1) attached to the leading edge (3), and the surface between the scraper plate (12) and segment (2) have a closed front plate (8) connected to the plate (1) along its leading edge (3), and the surfaces between the scraper plate (12) and the segment (2) on the side the interior of the cutting drum is closed by a clamping plate (13) connected to the plate (1). 2. Organ urabiajacy wedlug zastrz. 1, znamienny tym, ze krawedz (16) laczaca zgarniakowa blacha en (12) z segmentem (2) lezy w plaszczyznie przecho- 60 dzacej przez os (21) obrotu organu. 3. Organ urabiajacy wedlug zastrz. 2, znamienny tym, ze sferyczny kat miedzy zgarniakowa blacha (12) a powierzchnia plata (1) w miejscu ich zetknie- g- cia wynosi najkorzystniej 30-—60°.141 732 4. Organ urabiajacy wedlug zastrz. 3, znamienny tym, ze krawedz (7) przeciecia czolowej blachy (8) z segmentem (2) jest skosna wzgledem zewnetrznej kolowej krawedzi segmentu (2). 5. Organ urabiajacy wedlug zastrz. 4, znamienny tym, ze krawedz (18) przeciecia stezeniowej blachy 6 (13) z segmentem (2) ma zarys kolowy o promieniu (17) nie mniejszym od promienia (20) krawedzi wewnetrznej segmentu (2). 6. Organ urabiajacy wedlug zastrz. 5, znamienny tym, ze kat sferyczny miedzy zgarniakowa blacha (12) a czolowa blacha (8) jest katem prostym.141 732 AA 1 In £_ Rg.2. The mining organ according to claim The method of claim 1, characterized in that the edge (16) joining the scraper plate en (12) to the segment (2) lies in a plane passing through the axis (21) of rotation of the drum. 3. The mining organ according to claim A cutting organ according to claim 2, characterized in that the spherical angle between the scraper plate (12) and the surface of the plate (1) at their contact point is most preferably 30-60 °. 141 732. 6. A method according to claim 3, characterized in that the intersection edge (7) of the end plate (8) with the segment (2) is oblique with respect to the outer circular edge of the segment (2). 5. The mining organ according to claim 4. A method according to claim 4, characterized in that the edge (18) of the intersection of the bracing plate 6 (13) with the segment (2) has a circular profile with a radius (17) not smaller than the radius (20) of the inner edge of the segment (2). 6. The mining organ according to claim The method according to claim 5, characterized in that the spherical angle between the scraper plate (12) and the end plate (8) is a right angle. 141 732 AA 1 In £ _ Rg. 3 Fig. 3 Fig. 4 OZGraf. 2.P. Dz-wo, z. 1026 (90+15) 88.05 Cena 130 zl PL4 OZGraph. 2.P. Dz-wo, z. 1026 (90 + 15) 88.05 Price PLN 130 PL
PL24457183A 1983-11-14 1983-11-14 Mining head for mechanized coal miners PL141732B1 (en)

Priority Applications (1)

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PL24457183A PL141732B1 (en) 1983-11-14 1983-11-14 Mining head for mechanized coal miners

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PL24457183A PL141732B1 (en) 1983-11-14 1983-11-14 Mining head for mechanized coal miners

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PL244571A1 PL244571A1 (en) 1985-05-21
PL141732B1 true PL141732B1 (en) 1987-08-31

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