Claims
- 1. A rolling mill stand comprising:
- (a) a first roll shaft;
- (b) a second roll shaft substantially parallel to said first roll shaft;
- (c) first and second drive shafts for said first and second roll shafts respectively;
- (d) first carrier means for supporting said first roll shaft and said first drive shaft;
- (e) a first coupling between said first roll shaft and said first drive shaft;
- (f) second carrier means for supporting said second roll shaft and said second drive shaft;
- (g) a second coupling between said second roll shaft and said second drive shaft, and
- (h) roll gap adjustment means effective on at least one of said first and second carrier means for adjusting the separation of said first and second roll shafts;
- (i) said roll gap adjustment means adjusting equally said roll shaft and said drive shaft of said at least one carrier means, whereby the disposition of said roll shaft relative to said drive shaft is unaltered and said couplings are substantially unaffected by roll gap adjustment.
- 2. A rolling mill stand according to claim 1, in which each drive shaft is substantially axially aligned with its roll shaft, and each coupling is designed to permit a limited degree of misalignment between its roll shaft and drive shaft.
- 3. A rolling mill stand according to claim 2, in which each coupling is a gear coupling.
- 4. A rolling mill stand according to claim 3, in which each roll shaft is axially adjustable, and each coupling is operative for all adjusted axial positions of its roll shaft.
- 5. A rolling mill stand according to claim 2, in which there is an auxiliary shaft for each drive shaft, and each auxiliary shaft has a pinion gear meshing with a gear on the associated drive shaft and with the pinion gear on the other auxiliary shaft.
- 6. A rolling mill stand according to claim 5, in which one of the auxiliary shafts is connected to the output of a gear box having an input shaft parallel to the pass-line of rolls of the roll shaft.
- 7. A rolling mill stand according to claim 1, in which each said roll shaft includes an arbor on which is secured a hard metal sleeve having rolling grooves therein.
- 8. A rolling mill stand according to claim 1, having a housing which has supporting trunnions aligned with the pass-line of rolls, with the plane through the axes of the rolls at any desired angle.
- 9. A rolling mill stand comprising:
- (a) a first roll shaft;
- (b) a second roll shaft substantially parallel to said first roll shaft;
- (c) first and second drive shafts in substantial axial alignment with said first and second roll shafts respectively;
- (d) first and second couplings between said first roll shaft and said first drive shaft and between said second roll shaft and said second drive shaft respectively;
- (e) each said coupling permitting a limited degree of misalignment between its roll shaft and its drive shaft; and
- (f) roll gap adjustment means for varying the separation of said roll shafts, said adjustment means comprising, for at least one of said roll shafts;
- (g) an eccentrically journalled shaft; and
- (h) first and second carriers mounted on said eccentrically journalled shaft carrying respectively one of said roll shafts and the drive shaft aligned therewith;
- (i) rotation of said eccentrically journalled shaft causing equal adjustment of said first and second carriers.
- 10. A rolling mill stand according to claim 9, in which said carrier for the roll shaft is mounted for axial adjustment on the eccentrically journalled shaft and said coupling between that roll shaft and its drive shaft is operative for all adjusted axial positions of the roll shaft carrier.
- 11. A rolling mill stand according to claim 10, in which each coupling is a geared sleeve coupling.
- 12. A rolling mill stand according to claim 9, in which said eccentrically journalled shaft is in two connected axial parts which support respectively the roll shaft carrier and the drive shaft carrier.
- 13. A rolling mill stand comprising:
- (a) a first roll shaft;
- (b) a second roll shaft substantially parallel to said first roll shaft;
- (c) first and second drive shafts in substantial axial alignment with said first and second roll shafts respectively;
- (d) first and second couplings between said first roll shaft and said first drive shaft and between said second roll shaft and said second drive shaft respectively;
- (e) each said coupling permitting a limited degree of misalignment between its roll shaft and its drive shaft; and
- (f) a first eccentrically journalled shaft;
- (g) a first roll shaft carrier and a first drive shaft carrier mounted on said first eccentrically journalled shaft and carrying respectively said first roll shaft and said first drive shaft;
- (h) a second eccentrically journalled shaft;
- (i) a second roll shaft carrier and a second drive shaft carrier mounted on said second eccentrically journalled shaft and carrying respectively said second roll shaft and said second drive shaft; and
- (j) roll gap adjustment drive means for rotating said first and second eccentrically journalled shafts equally but in opposite senses.
- 14. A rolling mill stand according to claim 13, in which the adjustment drive means comprise a rotatable spindle carrying a pair of nuts, and arms fast on the eccentrically journalled shafts engaged by the nuts.
- 15. A rolling mill stand according to claim 13, in which each said roll shaft carrier is detachably secured to a sleeve rotatably mounted on its eccentric shaft, whereby the roll shaft is removable from the stand without affecting the eccentric shaft.
- 16. A rolling mill stand according to claim 15, in which the roll shaft carrier has wheels designed to run on rails formed on the sleeve to facilitate removal and entry of the roll shaft from and into the stand.
- 17. A rolling mill stand according to claim 13, in which each roll shaft has a pair of spaced bearing chocks, which are carried by the respective roll shaft carrier, and a roll barrel between the chocks.
- 18. A rolling mill stand comprising:
- (a) a first roll shaft;
- (b) a second roll shaft which is parallel to said first roll shaft;
- (c) first and second drive shafts substantially aligned with said first and second roll shafts, respectively;
- (d) first and second couplings between said first roll shaft and first drive shaft and between said second roll shaft and said second drive shaft, respectively, each said coupling permitting a limited degree of misalignment between its roll shaft and drive shaft;
- (e) gears on said drive shafts;
- (f) first and second auxiliary drive shafts;
- (g) gears on said auxiliary drive shafts meshing with said gears on said first and second drive shafts;
- (h) first adjustment means for varying equally the positions of said first roll shaft and said first drive shaft transversely to the axis of said first roll shaft;
- (i) second adjustment means for varying equally the positions of said second roll shaft and said second drive shaft transversely to the axis of said second drive shaft; and
- (j) adjustment drive means to drive said first and second adjustment means simultaneously.
- 19. A rolling mill stand according to claim 18, further including, for each of said first and second roll shafts, a pair of bearing chocks supporting said roll shaft on opposite sides of the roll of that roll shaft.
Priority Claims (1)
Number |
Date |
Country |
Kind |
47037/75 |
Nov 1975 |
GBX |
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Parent Case Info
This is a continuation of application Ser. No. 741,668, filed Nov. 15, 1976, abandoned.
US Referenced Citations (6)
Continuations (1)
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Number |
Date |
Country |
Parent |
741668 |
Nov 1976 |
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