Patent ID: 8109168
Filing Date: 2012-02-07
Classification: C21C,Y10T

Abstract:
1. Converter gearing, which comprises a gear rim ( 7 ), which is connected to an axis of rotation ( 6 ) of a converter vessel and engages at least one drive pinion ( 8 ) of the converter gearing ( 9 ), and two locking devices, which can be swung in or out to engage with or disengage from the teeth of the gear rim ( 7 ) and have the form of a locking arm ( 12 ), which is mounted on a horizontal shaft ( 10 ) and is configured with teeth ( 11 ), wherein the shaft ( 10 ) is supported in a terminal bearing ( 13 , 13 ′), the locking arm ( 12 ) can be engaged with or disengaged from the teeth ( 11 ) of the gear rim by active force elements, and the shaft ( 10 ) is supported in a housing of the converter gearing ( 9 ) by two eccentric bushes ( 4 , 5 ), which rotate freely, one within the other, at each end of the shaft, in such a way that an ideal engagement position of the interacting toothed regions of the locking device ( 12 ) and the gear rim ( 7 ) is set by independent rotation of the eccentric bushes, and a clamping element ( 16 , 16 ′) for adjusting a low-backlash bearing ( 13 ) is associated with the eccentric bushes ( 4 , 5 ) and bores ( 18 , 18 ′) which hold the eccentric bushes, wherein the eccentric bushes are cylinders and each have a uniform inner diameter, and wherein the clamping element ( 16 ) is an expandable clamping bush ( 19 ) having two wedge-shaped elements movable axially relative to one another so that an inside diameter and an outside diameter of the clamping bush are expandable by means of axial keys ( 17 ′) so as to radially tension the eccentric bushes and lock the eccentric bushes in a setting for a low-backlash bearing state of the bearing, each of the wedge-shaped elements having a radially inner surface parallel to a central axis of the horizontal shaft, and an angled, radially outer surface.