Assembly for changing the nut that retains a roll ring

Details Assembly for changing the nut that retains a roll ring Assembly for changing the nut that retains a roll ring

B - Operations, Transporting

21

B

B21B 31/08 (2006.01) B21B 27/02 (2006.01) B21B 27/03 (2006.01)

Patent

CA 2375124

The invention relates to an assembly provided with a changing device for changing the nut (11) which retains a roll ring and which is located on a roll shaft (2), said roll shaft being mounted in an unsupported manner and having a thread (13) for the nut (11). The changing device comprises a threaded bush (50) provided with a thread (12a) that corresponds with the thread (13) of the roll shaft (2) in order to receive the nut (11). The changing device also comprises a centering device (49) which ensures an aligned placement on the roll shaft (2). In order to enable the nut (11) to be screwed onto the roll shaft (2) from the threaded bush (50) in the instance that the positions of their threads do not exactly match one another, the threaded bush is configured such that is can be displaced or prevented from turning in relation to the centering device (49) and/or in relation to the roll shaft (2).

L'invention concerne un système permettant de changer, au moyen d'un dispositif de changement, l'écrou (11) portant un cylindre de laminage, sur un arbre de laminage (2) monté volant, qui présente un filetage (13) pour l'écrou (11). Ledit dispositif de changement comporte une douille filetée (50) munie d'un filet (12a) correspondant au filet (13) de l'arbre de laminage (2), afin de recevoir l'écrou (11). Ledit dispositif de changement comprend également un dispositif de centrage (49) permettant un montage en alignement sur l'arbre de laminage (2). Afin que l'écrou (11) puisse également être vissé sur l'arbre de laminage (2) depuis la douille filetée (50), même lorsque la position de leurs filets ne correspond pas exactement, la douille filetée se présente de manière à pouvoir se déplacer et à ne pas tourner par rapport au dispositif de centrage (49) et/ou par rapport à l'arbre de laminage (2).

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