Suction device and suction method for the disposal of dust in milling machines

US7175364B2 · kind B2 · utility

Assignee

• Wirtgen GmbH

Inventors

• Olaf Gaertner · Farster Bauerschaft, DE
• Christian Berning · Euskirchen, DE
• Dieter Simons · Kürten, DE

Key dates

• Filing date: May 6, 2003
• Grant date: Feb 13, 2007
• Expiry date: Jul 27, 2023

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E01C2301/50
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

Disclosed is an automotive milling machine for machining ground surfaces, comprising an engine frame (2), a movable milling drum (8) which is mounted on the engine frame (2), at least one conveying device (14, 18) which is arranged on the engine frame (2) and takes over the milled material (3) from the milling drum (8) at a transfer location (5), and a device (20) sucking off the air that is polluted with dust and fumes. The milled material (3) is enclosed by a duct (16, 16a, 16b) on the at least one conveying device (14, 18), said duct (16) being separated into two sections (16a, 16b). The suction device (20) is connected to the first section (16a) of the duct (16) downstream from the first transfer location (5) and sucks off the air that has been polluted during milling at the milling drum (8) as well as inside the first section (16a) of the duct (16) essentially in the direction in which the material is conveyed.