| 摘要 |
1,240,656. Rolling. BRITISH IRON & STEEL RESEARCH ASSOCIATION. 15 Nov., 1968 [15 Nov., 1967], No. 52086/67. Heading B3M. A work roll assembly comprises a work roll shaft 15 having an end face with an axial locating spigot 23 and an annular seat 24 disposed radially outwardly of the spigot, a work roll 10 having an axial recess 25 to receive the spigot and an annular seating surface 26 shaped to locate axially against the shaft seat 24 and releasable means for securing the roll to the shaft. The releasable means is preferably an hydraulically expandable bolt 32 having a nut 40 which is tightened while the bolt is in an expanded condition and locked by an arm 53 which cooperates with castellations 54 on the end of the bolt. Backlash of the roll on the shaft is prevented by a key member 70 on the roll located in a key space 74, on the shaft, and a wedge 76, Fig. 3, between one end 75 of the key member and one end 72 of the key way, secured to the shaft 15 by a bolt 78. Specifications 1,240,657, 1,240,658 and 1,240,659 are referred to. |
