Construction machine
AssigneeWirtgen GmbH
InventorsBernd Holl, Günter Hähn, Martin Lenz
Life of this patent
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Abstract
A construction machine for machining floor surfaces, wherein the machine includes a milling roll having a plurality of tool holders on a surface thereof. A tool, especially a straight shank tool, is received in a tool receiving element of the tool holder in an exchangeable manner. With this invention it is possible to change the tool in one such construction machine in a simplified manner. Thus, the milling roll is associated with a tool changing device, and the tool changing device dismounts each tool from the tool holder and/or mounts each tool in the tool holder.
Claims21
A construction machine for working pieces of ground, having a milling roller (10) with a surface with a plurality of arranged chisel holders (23), wherein a chisel (30), including a round shaft chisel, is exchangeably received in a chisel receiver (24) of the chisel holder (23), the construction machine comprising:
- a tool changing device in combination with the milling roller (10), wherein the tool changing device at least one of removes the chisel (30) from the chisel holder (23) and installs the chisel (30) in the chisel holder (23), and
- a displacement device positioning one of the milling roller (10) and the chisel (30) relative to at least one tool changer (40), and
- an actuating unit positioning the at least one tool changer (40) relative to the chisel (30) along a center longitudinal axis of the milling roller (10).
A construction machine for working pieces of ground, having a milling roller (10) with a surface with a plurality of arranged chisel holders (23), wherein a chisel (30), including a round shaft chisel, is exchangeably received in a chisel receiver (24) of the chisel holder (23), the construction machine comprising:
- a tool changing device in combination with the milling roller (10), wherein the tool changing device at least one of removes the chisel (30) from the chisel holder (23) and installs the chisel (30) in the chisel holder (23), the tool changing device imparting a dynamic pulse to at least one of the milling roller (10), a portion of the milling roller (10), the chisel holder (23), and a group of chisel holders (23), the dynamic pulse being imparted in a direction opposite the removal direction of the chisel (30), and with a mass inertia of the chisel (30) the pulse introducing an ejection force in the chisel (30).
Dependencies are inferred from the claim text.