Automotive Milling Machine, As Well As Method For Discharging Milled Material

Patent metadata

Field	Value
Publication number	US-2020263367-A1
Application number	US-202016809846-A
Country	US
Kind code	A1
Filing date	Mar 5, 2020
Priority date	Aug 22, 2014
Publication date	Aug 20, 2020
Grant date	—

Abstract

In an automotive milling machine, comprising a machine frame, comprising a controller for the travelling and milling operation, comprising a working drum, comprising a transport conveyor, where the transport conveyor is slewable, relative to the machine frame, about a first axis extending essentially horizontally under an elevation angle, and sideways about a second axis extending orthogonally to the first axis under a slewing angle, where the transport conveyor discharges the milled material onto a loading surface of a transport vehicle at a specified conveying speed, and where the controller continuously controls positioning of the milled material automatically via, as a minimum, the slewing angle of the transport conveyor, it is provided for the following features to be achieved: the controller specifies and monitors limit values for a maximum permissible slewing angle range for slewing the transport conveyor variable in accordance with the current operating situation.

First claim

1 - 16 . (canceled)

17 . An automotive milling machine for milling off milled material and discharging the milled material onto a loading surface of a transport vehicle, the milling machine comprising:
a machine frame; a working drum supported from the machine frame for milling off the milled material; a first transport conveyor arranged to transfer the milled material away from the working drum; a second transport conveyor arranged to receive the milled material from the first transport conveyor and to discharge the milled material onto the loading surface of the transport vehicle, wherein the second transport conveyor is slewable relative to a longitudinal center line of the machine frame; at least one detector configured to detect a slewing angle of the second transport conveyor; and a controller connected to the at least one detector and configured to automatically control movement of the second transport conveyor based at least partially on the detected slewing angle.

18 . The automotive milling machine of claim 17 , wherein the controller is further configured to dynamically specify limit values for a maximum permissible slewing angle range relative to the longitudinal center line of the machine frame.

19 . The automotive milling machine of claim 18 , wherein the maximum permissible slewing angle range is unsymmetrical relative to the longitudinal center line of the machine frame, and dynamically varied in accordance with a current operating situation of the milling machine.

20 . The automotive milling machine of claim 19 , wherein the current operating situation of the milling machine comprises a determined one or more sides of the milling machine corresponding to a parallel traffic lane.

21 . The automotive milling machine of claim 17 , wherein the controller is configured to
dynamically specify a first set of limit values for a maximum permissible slewing angle range relative to the longitudinal center line of the machine frame, and dynamically specify a second set of limit values for a slewing angle range relative to a longitudinal center line of the second transport conveyor, each of said limit values in the second set of limit values being within the maximum permissible slewing angle range relative to the longitudinal center line of the machine frame.

22 . The automotive milling machine of claim 21 , wherein the second set of limit values are unsymmetrical relative to the longitudinal center line of the machine frame, and dynamically varied in accordance with a current operating situation of the milling machine.

23 . The automotive milling machine of claim 22 , wherein the current operating situation of the milling machine comprises a determined one or more sides of the milling machine corresponding to a parallel traffic lane.

24 . The automotive milling machine of claim 17 , wherein:
the second transport conveyor is controllably slewable relative to a longitudinal center line of the machine frame via a first one or more piston-cylinder units, and an elevation angle of the second transport conveyor is controllably adjusted via a second one or more piston-cylinder units.

25 . The automotive milling machine of claim 17 , further comprising at least a second detector configured to detect a position of the loading surface relative to the machine frame or the second transport conveyor as seen in a direction of transport, and
wherein the controller is connected to the at least second detector and further configured to perform a continuous positioning control for one or more of:
a position of a discharge end of the second transport conveyor;
a point of impingement of the milled material on the loading surface; and
a conveying speed of the second transport conveyor.

26 . The automotive milling machine of claim 17 , wherein the detector is provided in an image-recording system.

27 . The automotive milling machine of claim 17 , wherein the detector is provided in a non-optical electronic positioning system.

28 . A method of discharging worked-off milled material of an automotive milling machine onto a loading surface of a transport vehicle, the method comprising:
transferring milled material away from a milling drum via a first transport conveyor and to a second transport conveyor; discharging the milled material via the second transport conveyor onto the loading surface of the transport vehicle in accordance with a slewing angle relative to a longitudinal center line of a machine frame of the milling machine; detecting the slewing angle of the second transport conveyor; and automatically controlling movement of the second transport conveyor based at least partially on the detected slewing angle.

29 . The method of claim 28 , further comprising dynamically specifying limit values for a maximum permissible slewing angle range relative to the longitudinal center line of the machine frame.

30 . The method of claim 29 , wherein the maximum permissible slewing angle range is unsymmetrical relative to the longitudinal center line of the machine frame, and dynamically varied in accordance with a current operating situation of the milling machine.

31 . The method of claim 30 , wherein the current operating situation of the milling machine comprises a determined one or more sides of the milling machine corresponding to a parallel traffic lane.

32 . The method of claim 28 , further comprising:
dynamically specifying a first set of limit values for a maximum permissible slewing angle range relative to the longitudinal center line of the machine frame, and dynamically specifying a second set of limit values for a slewing angle range relative to a longitudinal center line of the second transport conveyor, each of said limit values in the second set of limit values being within the maximum permissible slewing angle range relative to the longitudinal center line of the machine frame.

33 . The method of claim 32 , wherein the second set of limit values are unsymmetrical relative to the longitudinal center line of the machine frame, and dynamically varied in accordance with a current operating situation of the milling machine.

34 . The method of claim 33 , wherein the current operating situation of the milling machine comprises a determined one or more sides of the milling machine corresponding to a parallel traffic lane.

35 . The method of claim 28 , wherein:
the second transport conveyor is controllably slewable relative to a longitudinal center line of the machine frame via a first one or more piston-cylinder units, and an elevation angle of the second transport conveyor is controllably adjusted via a second one or more piston-cylinder units.

36 . The method of claim 28 , further comprising:
detecting a position of the loading surface relative to the machine frame or the second transport conveyor as seen in a direction of transport, and performing a continuous positioning control for one or more of:
a position of a discharge end of the second transport conveyor;
a point of impingement of the milled material on the loading surface; and
a conveying speed of the second transport conveyor.

Assignees

• Wirtgen Gmbh

Inventors

• Berning Christian
• Winkels Sebastian
• Kroell Harald
• Krista Tobias

Classifications

• E01C23/01

  Devices or auxiliary means for setting-out or checking the configuration of new surfacing, e.g. templates, screed {or reference line} supports (form rails E01C19/50); Applications of apparatus for measuring, indicating, or recording the surface configuration of existing surfacing, e.g. profilographs (E01C23/07 takes precedence; measuring roughness or irregularity in general G01B) · CPC title

• B65G67/24

  Unloading land vehicles · CPC title

• B65G41/002

  Pivotably mounted · CPC title

• E01C23/088 Primary

  Rotary tools, e.g. milling drums {(for forming recesses to receive marking materials E01C23/0946)} · CPC title

• E01C23/127

  rotary, e.g. rotary hammers · CPC title