US 11,925,940 B2
Roller groups for grinding devices, grinding devices, and methods
Philippe Holenstein, Henau (CH); Lukas Studerus, Niederuzwil (CH); Daniel Rickenbach, Wittenwil (CH); Daniel Mark, Wil (CH); and Heribert Weber, Arbon (CH)
Assigned to Bühler AG, Uzwil (CH)
Filed by BÜHLER AG, Uzwil (CH)
Filed on Mar. 4, 2022, as Appl. No. 17/686,544.
Application 17/686,544 is a continuation of application No. 17/058,892, granted, now 11,266,993, previously published as PCT/EP2019/063716, filed on May 28, 2019.
Claims priority of application No. 18174570 (EP), filed on May 28, 2018.
Prior Publication US 2022/0184628 A1, Jun. 16, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B02C 4/06 (2006.01); B02C 4/38 (2006.01)
CPC B02C 4/06 (2013.01) [B02C 4/38 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A milling apparatus (70), comprising a machine stand (71) and at least one roll assembly (10) with a first roll (11) and a second roll (12) that is or can be inserted in the machine stand (71),
wherein the roll assembly has an integrated rolling device (30) having at least one roller (31) which is or can be arranged on the roll assembly (10) in such a way that the roll assembly can be placed onto a horizontal base and moved thereon by means of the at least one roller (31),
wherein
the machine stand (71) has at least one rail (72) on which the at least one roller (31) of the roll assembly (10) is movable during mounting and/or demounting of the roll assembly (10), the roll assembly (10) has at least one contact surface (42, 76) and the machine stand (71) has at least one counter-contact surface (73),
wherein the contact surface (42, 76) and the counter-contact surface (73) are tailored to one another and to the at least one rail (72) in such a way that, in a mounted position of the roll assembly (10), by virtue of at least one form-fitting engagement between the at least one contact surface (42, 76) and the at least one counter-contact surface (73), the at least one roller (31) of the roll assembly (10) does not lie on the rail (72)), and wherein the roll assembly (10) has a force-measuring device that comprises:
a first sensor (24) for directly or indirectly determining a first force with which the first bearing body (13) and the second bearing body (14) are pretensioned with respect to one another; and
a second sensor (25) for directly or indirectly determining a second force with acts between the first abutment body (17) and the second abutment body (19).