Road Milling Machine and Method for Measuring the Milling Depth

Patent metadata

Field	Value
Publication number	US-2018282954-A1
Application number	US-201815880165-A
Country	US
Kind code	A1
Filing date	Jan 25, 2018
Priority date	Dec 22, 2006
Publication date	Oct 4, 2018
Grant date	—

Abstract

A method is provided for measuring the milling depth of a road milling machine, the machine being operative to mill a ground surface with a milling roller lowered to a milling depth to create a milling track, the machine including at least one side plate located to at least one side of the milling roller to engage an untreated ground surface, and the machine including a stripping plate operative to be lowered onto the milling track generated by the milling roller. The method includes measuring the milling depth of the milling track, the measuring including detecting a measurement value of a ground engaging sensor engaging the milling track.

First claim

1 . A method for measuring the milling depth of a road milling machine, the machine being operative to mill a ground surface with a milling roller lowered to a milling depth to create a milling track, the machine including at least one side plate located to at least one side of the milling roller to engage an untreated ground surface, and the machine including a stripping plate operative to be lowered onto the milling track generated by the milling roller, the method comprising:
measuring the milling depth of the milling track, the measuring including detecting a measurement value of a ground engaging sensor engaging the milling track.

2 . (canceled)

3 . The method of claim 1 , wherein:
the measuring step further includes detecting another measurement value of another ground engaging sensor engaging the untreated ground surface, and wherein both measurement values are detected in relation to a machine frame of the road milling machine.

4 . (canceled)

5 . (canceled)

6 . The method of claim 1 , wherein:
the measuring step further includes detecting the measurement value of the ground engaging sensor engaging the milling track in relation to another ground engaging sensor engaging the untreated ground surface.

7 . The method of claim 1 , further comprising:
correcting the measured milling depth in dependence on an offset distance between the ground engaging sensor engaging the milling track and a rotational axis of the milling roller, when the machine frame does not extend parallel to the untreated ground surface.

8 - 20 . (canceled)

Assignees

• Wirtgen Gmbh

Inventors

• Berning Christian
• Simons Dieter

Classifications

• 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

• G01B5/18

  for measuring depth · CPC title