US 11,746,481 B2
Ground milling machine
Gerome Dzomo, Urbar (DE); and Thomas Thelen, Monreal (DE)
Assigned to BOMAG GMBH, Boppard (DE)
Filed by BOMAG GMBH, Boppard (DE)
Filed on Jul. 18, 2018, as Appl. No. 16/39,017.
Claims priority of application No. 20 2017 003 790.4 (DE), filed on Jul. 18, 2017.
Prior Publication US 2019/0025037 A1, Jan. 24, 2019
Int. Cl. E01C 23/088 (2006.01); E01C 23/12 (2006.01); G01B 5/18 (2006.01)
CPC E01C 23/088 (2013.01) [E01C 23/127 (2013.01); G01B 5/18 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A ground milling machine, comprising:
a machine frame supported by front and rear travel units and at least partially height-adjustable;
a milling drum housing arranged on the machine frame, comprising a milling drum that is rotatable about a horizontal axis of rotation perpendicular to a milling direction;
a retaining device arranged in front of the milling drum housing in the milling direction with an adjustment device that enables height adjustment of the retaining device in relation to the milling drum housing and the machine frame; and
a ground contact device arranged in front of the milling drum housing in the milling direction with a contact runner and a mounting lever,
wherein the contact runner is height adjustable in relation to the retaining device within a height-adjustment range,
wherein the contact runner is mounted on the retaining device by the mounting lever,
wherein the contact runner is pivotably connected to the mounting lever via a first joint,
wherein the mounting lever is pivotably connected to the retaining device via a second joint,
wherein the mounting lever is operable between the contact runner and the retaining device such that, when a height of the retaining device is adjusted in relation to the contact runner, a horizontal distance between the first and the second joint increases before subsequently decreasing, and
a distance measuring device with which a vertical distance, or a value which correlates to the vertical distance, between the machine frame and/or milling drum housing and the contact runner is measurable.