Mixer bar for a stabilizer/recycler
AssigneeWirtgen GmbH
InventorsKarsten Buhr, Thomas Lehnert, Cyrus Barimani, Guenter Haehn
Life of this patent
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Abstract
The invention relates to a mixer bar for a stabilizer/recycler, having an attachment side that comprises an attachment surface for mounting on a drum surface, and having a tool holder receptacle. A mixer bar of this kind can be configured in wear- and strength-optimized fashion, with little production outlay, if provision is made that the mixer bar is embodied as a forged part and has a cross-sectional profile that varies at least locally transversely to the tool feed direction.
Claims41
A mixer bar for a stabilizer/recycler,
- wherein the mixer bar is embodied as a forged part and has a cross-sectional profile that varies at least locally transversely to a tool feed direction, the mixer bar having a length defined by the mounting surface, a height extending transversely to the mounting surface, and a lateral width extending transversely to both the length and the height, the lateral width being narrower than both the length and the height;
- wherein the mixer bar further includes:
- an attachment side including a mounting surface for mounting on a drum surface;
- a tool holder receptacle;
- and
- a protrusion arranged in front of the tool holder receptacle in the tool feed direction, the protrusion having a greater width, transversely to the tool feed direction, than a region adjoining behind the protrusion.
A mixer bar, comprising:
- a forged mixer bar body having a length extending in a tool feed direction, a height extending transverse to the length, and a lateral width extending transversely to both the tool feed direction and the height, the lateral width being narrower than the length and the height, including;
- an arcuate mounting surface configured to mount the body on a drum surface;
- a receptacle defined in the body and including a seat configured to receive a tool holder, the seat being located above the arcuate mounting surface by a distance greater than the lateral width of the mixer bar body;
- and
- a cutting protrusion located in front of the receptacle in a tool feed direction, the cutting protrusion partially defining the receptacle, the cutting protrusion being tapered in the tool feed direction to define a cutting edge.
A method of manufacturing a mixer bar, comprising:
- forging a mixer bar body having a length extending in a tool feed direction, a height extending transverse to the length, and a lateral width extending transversely to both the tool feed direction and the height, the lateral width being narrower than the length and the height, the mixer bar body including:
- an arcuate mounting surface configured to mount the body on a drum surface;
- a receptacle defined in the body and including a seat configured to receive a tool holder, the seat being located above the arcuate mounting surface by a distance greater than the lateral width of the mixer bar body;
- and
- a cutting protrusion located in front of the receptacle in a tool feed direction, the cutting protrusion partially defining the receptacle, the cutting protrusion being tapered in the tool feed direction to define a cutting edge.
A mixer bar, comprising:
- a forged mixer bar body, including;
- an arcuate mounting surface configured to mount the body on a drum surface;
- a receptacle defined in the body and configured to receive a tool holder;
- a cutting protrusion located in front of the receptacle in a tool feed direction, the cutting protrusion partially defining the receptacle, the cutting protrusion being tapered in the tool feed direction to define a cutting edge;
- a front side base protrusion adjacent the mounting surface and tapered in the tool feed direction, the front side base protrusion protruding forward of the cutting protrusion;
- and
- a radius transition joining the front side base protrusion with the cutting edge.
A mixer bar, comprising:
- a forged mixer bar body, including;
- an arcuate mounting surface configured to mount the body on a drum surface;
- a receptacle defined in the body and configured to receive a tool holder;
- a cutting protrusion located in front of the receptacle in a tool feed direction, the cutting protrusion partially defining the receptacle, the cutting protrusion being tapered in the tool feed direction to define a cutting edge;
- a front side base protrusion adjacent the mounting surface and tapered in the tool feed direction, the front side base protrusion protruding forward of the cutting protrusion;
- a rearward supporting projection located behind the receptacle and partially defining the receptacle;
- and
- a rear side base protrusion adjacent the mounting surface and tapered opposite to the tool feed direction, the rear side base protrusion protruding rearward of the rearward supporting projection.
A method of manufacturing a mixer bar, comprising:
- forging a mixer bar body including:
- an arcuate mounting surface configured to mount the body on a drum surface;
- a receptacle defined in the body and configured to receive a tool holder;
- a cutting protrusion located in front of the receptacle in a tool feed direction, the cutting protrusion partially defining the receptacle, the cutting protrusion being tapered in the tool feed direction to define a cutting edge;
- a front side base protrusion adjacent the mounting surface and tapered in the tool feed direction, the front side base protrusion protruding forward of the cutting protrusion;
- and
- a radius transition joining the front side base protrusion with the cutting edge.
A method of manufacturing a mixer bar, comprising:
- forging a mixer bar body including:
- an arcuate mounting surface configured to mount the body on a drum surface;
- a receptacle defined in the body and configured to receive a tool holder;
- a cutting protrusion located in front of the receptacle in a tool feed direction, the cutting protrusion partially defining the receptacle, the cutting protrusion being tapered in the tool feed direction to define a cutting edge;
- a front side base protrusion adjacent the mounting surface and tapered in the tool feed direction, the front side base protrusion protruding forward of the cutting protrusion;
- a rearward supporting projection located behind the receptacle and partially defining the receptacle;
- and
- a rear side base protrusion adjacent the mounting surface and tapered opposite to the tool feed direction, the rear side base protrusion protruding rearward of the rearward supporting projection.
Dependencies are inferred from the claim text.