PL63304B3

PL63304B3 -

Info

Publication number: PL63304B3
Application number: PL114180A
Authority: PL
Inventors: J. Justus Edgar
Original assignee: Beloit Corporation
Filing date: 1966-04-22
Publication date: 1971-06-30

Description

Pierwszenstwo: 21. V. 1965 Stany Zjednoczone Ameryki Opublikowano: 25. IX. 1971 63304 ki. 55^, smi Afik MKP D 21 D21<^F/ UKD Twórca wynalazku: Edgar J. Justus Wlasciciel patentu: Beloit Corporation, Beloit Wisconsin (Stany Zjedno¬ czone Ameryki) Zespól walca Wynalazek dotyczy ulepszenia walca wedlug pa¬ tentu Nr 63 303 z kontrolowanym dociskiem styku z drugim walcem, zwlaszcza ulepszenia sterowania barylkowego walca, oraz ulozyskowania nierucho¬ mego centralnego walu znajdujacego sie we wne¬ trzu tego walca przeznaczony zwlaszcza dla pras w maszynach papierniczych, kalandrów lub podob¬ nych urzadzen.Celem wynalazku jest ulozyskowanie, kompensu¬ jace ugiecie nieruchomego centralnego walu, umiesz¬ czonego we wnetrzu barylkowego walca. Ulozysko¬ wanie jest proste w konstruckji i eliminuje mozli¬ wosc wzajemnego blokowania walu i walca, spo¬ wodowanego ugieciem walu przy obciazeniu go podczas korygowania docisku.Poza tym wynalazek zapewnia lepsze ulozysko¬ wanie nieruchomego centralnego walu, oraz kom¬ pensuje ugiecie walu spowodowane naciskiem przy korygowaniu docisku walca.Wedlug wynalazku uzyskuje sie ulepszona postac kontrolowanego barylkowego walca* zaopatrzonego w nieruchomy centralny wal, stanowiacy element oporny dla elementów korygujacych docisk walca.W konstrukcji wedlug wynalazku uginanie walu na skutek cisnienia wywieranego na niego przy korekcji docisku walca jest kompensowane przez utrzymywanie i ulozyskowanie walca na jego kon¬ cach i przez oparcie centralnego walu na jego kon¬ cach w obrebie obudowy jego lozyskowan na sa¬ monastawnych lozyskach.Przedmiot wynalazku jest przedstawiony w przy¬ kladzie wykonania na rysunku, na którym fig. 1 przedstawia lewy koniec walca w widoku z boku, czesciowo w przekroju, a fig. 2 — prawy koniec 5 walca w widoku z boku i czesciowo w przekroju.Zespól walca 11 zawiera wydluzony cylindryczny plaszcz 13, w którym jest umieszczony nieruchomy centralny wal 15 o dlugosci wiekszej niz dlugosc plaszcza. Centralny wal jest zaopatrzony w na- 10 ciskajacy slizg^acz 16 przesuwny w kierunku pro¬ mieniowym sluzacy do naciskania na wewnetrzna powierzchnie plaszcza 13. Slizgacz moze byc umoco¬ wany wahliwie na prostokatnym tloku 17 umiesz¬ czonym w wybraniu wykonanym w wale 15 i ma- 15 jacym dlugosc walu tak jak to opisano w patencie glównym Nr 63 303. Slizgacz 16, tlok 17, sposób za¬ montowania tloka 17 w centralnym wale 13 oraz uklad hydrauliczny do poruszania tloka w kierun¬ ku powierzchni plaszcza 13 zostal opisany w pa- 20 tencie glównym Nr 63 303 z wyjatkiem reakcji na zginanie w odniesieniu do plaszcza 13.Plaszcz 13 walca jest polaczony na obydwu kon¬ cach z tulejami 19 i 20 zaopatrzonymi w kolnierze.Kolnierz tulei 19 jest zaopatrzony w tulejkowa 25 czesc 21, na która jest nasadzony koniec plaszcza 13. Tuleja 19 jest zamocowana do plaszcza 13 za pomoca dwustronnych srub i nakretek 23. Druga tuleja 20 umocowana do przeciwleglego konca plaszcza 13 ma podobna konstrukcje jak tuleja 19 30 i jest zamocowana do plaszcza 13 przy pomocy dwu- 6330463304 3 stronnych srub i nakretek 24. Tuleje 19 i 20 sa ulozyskowane w waleczkowych skosnych lozyskach, znajdujacych sie w obudowach 25 i 26. Obudowa 25 lozyskowania jest osadzona na podporze 27 w odpowiedni sposób. Podpore lozyskowa tworzy 5 podpora i obudowa dla pary stozkowych lozysk waleczkowych 29, 29 na ich przeciwleglych kon¬ cach, tworzac podpory lozyskowe dla tulei 19.Wewnatrz tulei 19, w jej czesci oznaczonej liczba 30, zakonczonej obsadzeniem 31 jest osadzony ze- 10 wnetrzny pierscien samonastawnego sferycznego tocznego lozyska. Pierscien ten opiera sie o odsa¬ dzenie 31. W przykladzie pokazanym na rysunku zastosowano lozysko waleczkowe. Jednakze istnieje mozliwosc zastosowania innego typu samonastaw- 15 nego lozyska, o zakresie wychylen wystarczajacym dla dopasowania sie do ugiecia centralnego walu 15 spowodowanego dzialajaca nan sila sluzaca do korygowania docisku walca.Podczas korygowania docisku walca sily powo- 20 dujace ugiecie walu dzialaja nan w okolicy jego srodka. Wewnetrzny pierscien 35 samonastawnego lozyska 33 jest nasadzony na koncowy odcinek 36 walu 15 o mniejszej srednicy. Na zewnetrznym koncu tulei 19 jest umocowana pokrywa 37, której 25 tulejkowa czesc 39 dociska zewnetrzny pierscien 32 samonastawnego lozyska 31 we wnetrzu tulei 19.Cylindryczny dociskowy element 40 jest umoco¬ wany na koncu 36 centralnego walu 15. Element ten wystaje na zewnatrz pokrywy 37 i jest zaopa- 30 trzony w kolnierz 41 zamocowany don na klinie.Do elementu 40 jest na jego koncu przytwierdzona plyta 43, zamocowana don srubami 44. Plyta ta sluzy do zamkniecia konca elementu 40 i zabez¬ pieczenia na nim kolnierza 41. Jak to pokazano na 35 fig. 1 integralna czesc kolnierza 41 stanowi ramie 45 wystajace promieniowe ku dolowi. Ramie to sluzy do zabezpieczania walu 15 przed obrotem i do nastawiania polozenia tego walu 15 w taki sposób, by slizgrcz 16 znajdowal sie w prawidlowej po- 4< zycji wzgledem linii styku plaszcza 13 z wal¬ cem 12.Tuleja 20 zamocowana na drugim koncu plasz¬ cza 13 jest ulozyskowana w waleczkowatyeh sko¬ snych lozyskach 47 umieszczonych w obudowie 26, 45 która z kolei jest umocowana do podpory 47 po¬ dobnej do podpory 27, na której spoczywa obudowa 25. Koniec 49 walu 15 jest ulozyskowany w lozysku tocznym samonastawnym 50 umieszczonym w tulei 20 analogicznie jak koniec 36 walu 15 jest ulozysko- 50 wany w lozysku 33. Na zewnetrznym koncu tulei 20 jest osadzona pokrywa 51, której tulejkowa czesc 52 dociska samonastawne lozysko 50 do odsadzenia 53 tulei 20. Pokrywa 51 jest przymocowana do konca tulei 20 za pomoca srub 55 i jest zamknieta 55 plyta 56 zaslaniajaca czesciowo dociskowy element 57 dla lozyska 47. Pokrywa 51 ma centralna wy¬ stajaca w bok czesc 59 majaca czop 60, który sluzy do napedzania tulei 51, tulei 20 i plaszcza 13. Na czopie 60 jest wykonany rowek klinowy 61 umozli- eo wiajacy napedzanie czopa za posrednictwem zna¬ nych sprzegiel lub elementów napedowych.Jak z powyzszego wynika konstrukcja wedlug wynalazku umozliwia uzyskanie lepszego niz dotad lozyskowania dla regulowanego walca beczkowego. 65 Pozwala ono na dogodne napedzanie walca i pod¬ parcie nieruchomego centralnego walu na wnetrzu walca w sasiedztwie jego konców na lozyskach wahliwych i dzieki temu uklad moze sie przysto¬ sowywac do uginania walu spowodowanego silami regulujacymi docisk walca. Sily te dzialaja na sro¬ dek walu i równowaza sily regulujace docisk walca.Stosujac konstrukcje wedlug wynalazku zapobiega sie blokowaniu walu wzgledem plaszcza walca i zmniejsza tarcie w zespole walca oraz umozliwia bardziej dokladna kontrole docisku. PL PLPriority: 21.V.1965 United States of America Published: 25. IX. 1971 63304 ki. 55 ^, smi Afik MKP D 21 D21 <^ F / UKD Inventor: Edgar J. Justus. Patent owner: Beloit Corporation, Beloit Wisconsin (United States of America). Roller unit The invention relates to the improvement of the roller according to the patent No. 63,303 of controlled pressure of the contact with the second roller, in particular improving the control of the barrel roller, and the bearing of the stationary central roller inside this roller, especially for presses in paper machines, calenders or similar devices. The object of the invention is to locate, compensate for the deflection of the stationary central shaft located in the interior of the barrel cylinder. The operation is simple to construct and eliminates the possibility of mutual locking of the shaft and the roller caused by deflection of the shaft under load when adjusting the pressure. In addition, the invention provides a better alignment of the stationary central shaft and compensates for the deflection of the shaft due to pressure. According to the invention, an improved form of a controlled barrel roller * provided with a stationary central shaft is obtained, which is a resistance element for the elements correcting the pressure of the roller. In the construction according to the invention, the deflection of the shaft due to the pressure exerted on it during the correction of the pressure of the roller is compensated by holding and bearing the roller at its ends and by resting the central shaft on its ends within its housing, bearing it on self-aligning bearings. The subject of the invention is illustrated in the example of the drawing, in which Fig. 1 shows the left end of the roller in side view, partially sectioned already, and Fig. 2 shows the right end 5 of the cylinder in a side view and partially sectioned. The roller assembly 11 comprises an elongated cylindrical mantle 13 in which a fixed central shaft 15 is placed, with a length greater than that of the mantle. The central shaft is provided with a pressing shoe 16 movable in the radial direction for pressing against the inner surface of the mantle 13. The shoe may be pivoted on a rectangular piston 17 located in a recess made in shaft 15 and has - the length of the shaft as described in the main patent No. 63 303. The slider 16, the piston 17, the method of mounting the piston 17 in the central shaft 13 and the hydraulic system for moving the piston towards the surface of the mantle 13 are described in section 20 of the main stroke No. 63 303, except for the bending reaction with respect to the mantle 13. The mantle 13 of the cylinder is connected at both ends to the sleeves 19 and 20 provided with flanges. The flange of the sleeve 19 is provided with a sleeve 25 part 21 on which it is attached. projected end of mantle 13. Sleeve 19 is attached to mantle 13 by means of double-sided bolts and nuts 23. Second sleeve 20 attached to opposite end of mantle 13 has a similar structure to sleeve 19 30 and is fixed to the shell 13 by two-sided 3-sided bolts and nuts 24. The sleeves 19 and 20 are mounted in angled roller bearings provided in housings 25 and 26. The bearing housing 25 is seated on the support 27 in a suitable manner. The bearing support forms a support and a housing for a pair of tapered roller bearings 29, 29 at their opposite ends, forming bearing supports for the sleeve 19. Inside the sleeve 19, in its part marked with the number 30, ending with a housing 31 is mounted on the outer ring. self-aligning spherical rolling bearing. The ring rests against a shoulder 31. In the example shown in the figure, a roller bearing is used. However, it is possible to use another type of self-aligning bearing with a range of deflection sufficient to accommodate the deflection of the central shaft 15 caused by the applied force applied to correct the pressure of the roller. When correcting the pressure of the roller, the forces causing the deflection of the roller act in the vicinity of the roller. measure. The inner ring 35 of the self-aligning bearing 33 is fitted onto the end section 36 of the smaller diameter shaft 15. A cover 37 is attached to the outer end of the sleeve 19, the sleeve-like part 39 of which presses the outer ring 32 of the self-aligning bearing 31 inside the sleeve 19. A cylindrical pressure piece 40 is fastened to the end 36 of the central shaft 15. This element protrudes outside the cover 37 and 30 is provided with a flange 41 attached to a wedge. A plate 43 is fixed at its end to the element 40, fixed with screws 44. This plate is used to close the end of the element 40 and to secure the flange 41 on it. 1, the integral part of the collar 41 is a frame 45 projecting radially downwards. This arm serves to prevent the shaft 15 from turning and to adjust the position of the shaft 15 in such a way that the slide 16 is in the correct position with respect to the line of contact between the mantle 13 and the roller 12. The sleeve 20 is fixed at the other end of the mantle. The joint 13 is mounted in cylindrical skew bearings 47 housed in the housing 26, 45 which in turn is attached to a support 47 similar to the support 27 on which the housing 25 rests. The end 49 of the shaft 15 is mounted in a self-aligning roller bearing 50 located in the sleeve 20 in the same way as the end 36 of the shaft 15 is mounted in the bearing 33. A cover 51 is mounted on the outer end of the sleeve 20, the sleeve part 52 of which presses the self-aligning bearing 50 against the shoulder 53 of the sleeve 20. The cover 51 is attached to the end of the sleeve 20 is closed by means of screws 55 and 55 is closed, the plate 56 covering the partial pressure element 57 for the bearing 47. The cover 51 has a central laterally projecting part 59 having a spigot 60 which serves driving the sleeve 51, sleeve 20 and shell 13. The journal 60 is provided with a wedge groove 61 which enables a firm drive of the spigot by means of known couplings or driving elements. As it results from the above, the construction according to the invention enables to obtain a better than additional bearing for the adjustable roller barrel. It allows the roller to be conveniently driven and to support the stationary central roller on the inside of the roller adjacent to its ends on self-aligning bearings, so that the system can be adapted to deflection of the roller caused by the forces regulating the pressure of the roller. These forces act on the shaft of the shaft and balance the forces that regulate the pressure of the roller. By using the design according to the invention, it is prevented from blocking the roller against the skin of the roller and the friction in the roller assembly is reduced and the pressure is controlled more precisely. PL PL

Claims

1. Claims 1. A roller assembly adapted to maintain a uniform pressure over the entire contact area with the second roller, intended in particular for presses in paper machines, calenders or similar devices, consisting of a cylindrical shell ending on a stationary central shaft passing through the inside of the mantle, the central shaft being provided with means for compensating for bending of the mantle under load according to patent No. 63 303, characterized in that the mantle (13) of the cylinder is fixed at both ends with flanges provided with (19, 20) the sleeves protruding outside this mantle and mounted in the bearing housings (25, 26) and adapted to rotate about a horizontal axis, while the stationary central shaft (15) passing through the inside of the mantle (13) of the roller has the end parts (36, 49) rest on self-aligning bearings (33, 50) also inside the sleeve (19, 20) attached to the mantle (13) bending The weight of the central shaft relative to its bearing is compensated by the forces exerted on the mantle (13) to adjust its pressure.

2. Roller unit according to claim 3. A method as claimed in claim 1, characterized in that the sleeves (19, 20) and the shell (13) of the cylinder are rotatably mounted in the housings (25, 26), at least one of the fixed shell (13) of the sleeves (20) being connected to the driving means for rotating the mantle (13) of the roller with respect to the stationary central shaft (15).

3. Roller unit according to claims A method as claimed in claim 1, characterized in that the outer ends of the sleeves (19, 20) are closed by covers (37, 51), the stationary central shaft extending outward through one of the covers and provided with means preventing its rotation, and the cover (51) of the sleeve (20) lying at the other end has a central portion (59) extending outwardly therefrom in an axial direction, the protruding portion having a pin (60) extending therefrom and for connection to the system a drive that rotates the shell (13) around a stationary central shaft (15).

4. Roller unit according to claims A bearing arrangement for maintaining a predetermined distance between said shaft and shell between the shell (13) of the cylinder and the central shaft (15), these arrangements being adapted to compensate for the deflection. the central shaft, caused by forces correcting the pressure of the roll, and they include pivoting spherical bearings (33, 50) placed in the interior of the bearing housings (25, 26) symmetrically with respect to the bushing (19, 20).

5. Roller unit according to claims A method according to any one of claims 1-4, characterized in that between the stationary central shaft (15) and the inner surface of the mantle (13) of the cylinder near the contact area of the mantle (13) with the second cylinder (12) are on the central shaft (15) mounted pressing elements (16, 17) moved radially in relation to the central stationary shaft to maintain the same pressure of the roller throughout its length, with spherical self-aligning bearings (33, 50) located at the ends of the shaft in order to maintain a defined radial distance between the central shaft (15) and the mantle (13) of the roller or its sleeves, they are adapted to simultaneously compensate for the deflection of the central shaft (15) caused by the applied forces correcting the pressure of the roller. 10 20

6. Roller unit according to claims A method as claimed in any one of claims 1 to 5, characterized in that self-aligning rolling bearings (33, 50) are positioned at both ends of the central shaft (15) and beyond the opposite ends of the mantle (13) of the cylinder.

7. Roller unit according to claims A method according to any of the claims 1-6, characterized in that one of the sleeves coaxially mounted on both ends of the mantle (13) of the cylinder, namely the sleeve (20) is terminated by a part (59) which protrudes outwardly by a pin (60) used to drive the mantle (60). (13) of the roller, while the sleeve (19) is a closed cover (37) through which a central fixed shaft protrudes outwardly provided with a frame (45) located at the end of the shaft, with the pressing elements (16) 17) positioned between the central shaft (15) and the inner surface of the shell (13) are angularly adjustable together with the arm (45) in order to maintain a uniform pressure between the shell (13) and the roller (12) on their entire area of contact. ig-i i xc /////// AKI. 55 d, 33/01 63304 MKP D 21 f, 7/02 - ^ j & ~ ^ 1 £ /. 37 KZG 1, issue 242/71 - 230 PL PL