Dividing gear unit for a roll block

Details Dividing gear unit for a roll block Dividing gear unit for a roll block

1986-07-16

1989-02-28

Spruill, Robert L.

Metal deforming

By use of roller or roller-like tool-element

Plural roller-couples

72249, 74665F, 74665GA, B21B 116, B21B 3512

Patent

active

048074586

ABSTRACT:
A roll block for rolling wire to final gauge in a high speed wire mill with a plurality of roll units alternatingly positioned at right angles to each other and behind each other, which are driven by two roll drive shafts running on both sides of the line of rolls parallel to it, includes a dividing gear unit for driving both drive shafts by a common drive motor. The individual roll units are connected to the roll drive shafts by miter wheel, bevel and/or other gear units. The gear ratios in the dividing gear unit on setting predetermined rotational speed ratios of the roll drive shafts lead to a predetermined series of caliber reductions for which the respective roll block is designed. Other materials and/or roll products require, if the gear ratios and rotational speeds are to be maintained constant, correspondingly changed dividing gear units. Such changes are no longer required when the dividing gear unit is a mechanical or hydraulic gearshift which produces different rotational speeds. A very fast and simple rotational speed change is allowed selectively by gear mechanisms operable by engaging and disengaging clutches between an input drive shaft, intermediate drive shafts and an output drive shaft.

REFERENCES:
patent: 599337 (1898-02-01), Kenworthy
patent: 2629272 (1953-02-01), Wood
patent: 2953942 (1960-09-01), Schwartz et al.
patent: 4112722 (1978-09-01), Boucard

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