TOOL AND DEVICE FOR REMOVAL OF MATERIAL ON SURFACES

• US 20200130230A1
• Filed: 11/02/2017
• Published: 04/30/2020
• Est. Priority Date: 11/02/2016
• Status: Active Grant

• Current Assignee: Energie Baden-Wã¼Rttemberg AG
• Original Assignee: Energie Baden-Wã¼Rttemberg AG
• Inventors: Boersch, Fabian, Dietz, Kevin, Feil, Hartmut, Greb, Johannes, Hammer, Fabian
• Granted Patent: US 11,628,595 B2
• Time in Patent Office: Days
• CPC Class Codes: B27B 5/34 Devices for securing a plurality of circular saw blades on a single saw spindle; Equipment for adjusting the mutual distance arrangements for adjusting the mutual distances of circular saw machines for lengthwise sawing of trunks B27B7/04
• CPC Class Codes: B28D 1/048 with a plurality of saw blades B28D1/046 takes precedence
• CPC Class Codes: B28D 1/121 Circular saw blades
• CPC Class Codes: B28D 1/18 by milling, e.g. channelling by means of milling tools
• CPC Class Codes: B28D 1/186 Tools therefor, e.g. having exchangeable cutter bits B28D1/181 takes precedence; bits for picks or pick-holders for mining or quarrying E21C35/18
• CPC Class Codes: B28D 7/02 for removing or laying dust, e.g. by spraying liquids; for cooling work
• CPC Class Codes: E01C 23/09 for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
• CPC Class Codes: G21D 1/003 Nuclear facilities decommissioning arrangements decontamination arrangements, treating radioactively contaminated material G21F9/00

Abstract

The invention proposes a tool and device, with the aid of which it is possible to remove the surface of walls, ceilings and floors also in the corners of contaminated interiors.

Claims

1. A tool for the removal of surfaces, comprising a drive shaft, wherein the drive shaft is rotatably mounted at a first end, wherein a plurality of circular saw blades are disposed at the drive shaft, and wherein the saw teeth of a last saw blade disposed at a second end of the drive shaft opposite of the first end project in the axial direction beyond the second end of the drive shaft, wherein the saw blades are connected to the drive shaft in a rotationally fixed manner, wherein the drive shaft comprises at least one longitudinal groove and a collar, wherein spacer rings are disposed between the saw blades, and wherein the spacer rings and the saw blades have through holes and a central opening, characterized in that the spacer rings and the saw blades have central openings, that at the central openings of the spacer rings one or a plurality of lugs are configured, and that the lugs are formed in a complementary manner to the longitudinal groove or grooves of the drive shaft.

3. The tool as recited in claim 1, characterized in that a collar of the drive shaft or a clamping piece slid onto drive shaft has fastening means, in particular internal threads in that the fastening means interact with clamping screws in such a manner that they fix the saw blades and the spacer rings in the axial direction on the drive shaft and connect them in a rotationally fixed manner to the drive shaft.

5. The tool as recited in claim 1, characterized in that the last saw blade at an end face is fastened in a centered and/or rotationally fixed manner at the second end of the drive shaft.

6. The tool as recited in claim 3, characterized in that the last saw blade is fastened with the aid of screws or a nut to the end face at the second end of the drive shaft.

7. The tool as recited in claim 1, characterized in that at least the last saw blade has a crank.

8. A device for the removal of surfaces, comprising a base frame, a linear guide and a sliding carriage, wherein the sliding carriage is coupled via the linear guide to the base frame, and wherein characterized in that a tool for the removal of material comprising a drive shaft, wherein the drive shaft is rotatably mounted at a first end, wherein a plurality of circular saw blades are disposed at the drive shaft, and wherein the saw teeth of a last saw blade disposed at a second end of the drive shaft opposite of the first end project in the axial direction beyond the second end of the drive shaft wherein the saw blades are connected to the drive shaft in a rotationally fixed manner, wherein the drive shaft comprises at least one longitudinal groove and a collar, wherein spacer rings are disposed between the saw blades, and wherein the spacer rings and the saw blades have through holes and a central opening, characterized in that the spacer rings and the saw blades have central openings, that at the central openings of the spacer rings one or a plurality of lugs are configured, and that the lugs are formed in a complementary manner to the longitudinal groove or grooves of the drive shaft according to one of the preceding claims is disposed at the sliding carriage, and that the base frame has a plurality of spacers including a stop.

9. The device as recited in claim 8, characterized in that a bearing block for the tool is provided at the sliding carriage.

10. The device as recited in claim 8, characterized in that a linear drive for moving the sliding carriage in relation to the base frame is provided.

11. The device as recited in one of claim 8, characterized in that the tool by its second end laterally projects beyond the longitudinal side of the base frame.

12. The device as recited in claim 8, characterized in that the saw blades of tool at least in an end position of the sliding carriage project beyond an end face of the base frame.

13. The device as recited in claim 8, characterized in that the base frame has a mechanical interface.

14. The device as recited in claim 8, characterized in that the mechanical interface interacts with a mechanical interface at a construction machine.

16. The device as recited in claim 8, characterized in that the spacers respectively have one spring element, and that a spring deflection of the spring elements is greater than the immersion depth of the tool into the surface to be removed.

17. The device as recited in claim 16, characterized in that a length of the spacers is dimensioned in such a manner that, if the spring element in the decompressed state rests on the surface to be removed, the saw blades of the tool do not immerse into the surface to be removed.

2. (canceled)

4. (canceled)

15. (canceled)