ROAD CONSTRUCTION MACHINE WITH NEBULIZER

Abstract

A road construction machine in the form of a road finisher or feeder vehicle comprising an operator stand with a floor surface as a tread surface and a cooling system for producing a mist from a cooling agent. The cooling system comprises a tank for receiving the cooling agent and a spray apparatus for nebulizing the cooling agent into a mist. The cooling system is configured to produce the mist in the area of the operator stand, and the spray apparatus is arranged thereby at a height of at least 1.7 m above the tread surface.

Claims

1. A road construction machine formed as a road finisher for paving a road surface or a feeder vehicle for supplying the road finisher with paving material, the road construction machine comprising an operator stand with a floor surface as a tread surface for an operator, and a cooling system for producing a mist from a cooling agent, wherein the cooling system comprises a tank for receiving the cooling agent and a spray apparatus for nebulizing the cooling agent into a mist, wherein the cooling system is configured to produce the mist in an area of the operator stand, and wherein the spray apparatus is arranged at a height of at least 1.7 m above the tread surface.

2. The road construction machine according to claim 1, wherein the spray apparatus is arranged at a height of at least 1.9 m above the tread surface.

3. The road construction machine according to claim 1, wherein the spray apparatus is arranged at a height of at least 2.1 m above the tread surface.

4. The road construction machine according to claim 1, wherein the operator stand comprises a roof supported by a support structure, wherein the spray apparatus is mounted on the roof or on the support structure.

5. The road construction machine according to claim 1, wherein the cooling system is modularly detachable from or mounted on the road construction machine.

6. The road construction machine according to claim 5, wherein the cooling system may be supplied with electrical energy from a power supply of the road construction machine.

7. The road construction machine according to claim 1, wherein the cooling agent comprises water.

8. The road construction machine according to claim 1, wherein degree of nebulization of the spray apparatus or an average droplet size of the mist is adjustable.

9. The road construction machine according to claim 1, wherein the operator stand is an external operator stand on a paving screed of the road construction machine designed as a road finisher.

10. The road construction machine according to claim 9, further comprising a structure supporting the spray apparatus, wherein the structure is arranged on the external operator stand.

11. The road construction machine according to claim 1, wherein the spray apparatus is arranged further forward of a midpoint of the operator stand in a direction of travel of the road construction machine.

12. The road construction machine according to claim 1, wherein the spray apparatus is arranged further forward in a direction of travel of the road construction machine than the operator stand.

13. The road construction machine according to claim 1, wherein the spray apparatus comprises several spray nozzles.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In the following, advantageous embodiments of the disclosure are explained in more detail with reference to a drawing.

[0021] FIG. 1 is a lateral view of a road construction machine according to the disclosure in the form of a road finisher; and

[0022] FIG. 2 shows an embodiment of the disclosure in the form of a feeder vehicle.

[0023] The same components are designated with the same reference signs throughout the figures

DETAILED DESCRIPTION

[0024] FIG. 1 shows a road finishing machine 1 in the form of a road finisher 2 for paving a road. In a typical manner, the road finisher 2 has a material hopper 3 for receiving paving material, for example hot asphalt, an engine 4—for example an internal combustion engine—for operating, in particular, a chassis 5, a generator 6 driven by the engine 4, and a towing vehicle 7 that tows a paving screed 8. The main operator stand 9 has a tread surface 12 for the operator to stand on.

[0025] A further operator stand, namely the external operator stand 13, is located on the paving screed 8. It has operator element 14 and its own tread surface 12′ for the operator to stand on.

[0026] According to the disclosure, the road finisher 2 also has a cooling system K. The cooling system comprises a tank 15 for receiving a cooling agent 16, which may, for example, be water. The cooling system K may be supplied with electrical energy from the generator 6 to operate a pump and/or a cooling apparatus. The cooling system K may either be permanently installed on the road finisher 2 or modularly detachable from or mounted on the road construction machine 1.

[0027] The cooling system K has pipes 17 beside the tank 15, which lead the cooling agent from the tank to one more spray nozzles 18. A spray apparatus 18 serves to nebulize the cooling agent 16 into a fine mist. For this purpose, the spray apparatus 18 may have one more nozzles, which nebulize the cooling agent 16 into drops. The cooling system K may also have a pump (not shown), with which the cooling agent is transported from the tank 15 to the spray apparatus 18.

[0028] In the illustrated embodiment, a first spray apparatus 18 is mounted on the roof 10 of the road construction machine 1; it is located there with a height of over 1.9 m, and even over 2.1 m above the floor or tread surface 12 of the main operator stand 9. The tread surface 12 itself is already located at a height between 1.5 m and 2.3 m above a substrate U on which the road construction machine stands. In the typical direction of travel F of the road construction machine 1, the spray apparatus 18 is arranged further forward than a midpoint designated with an M of operator stand 9. The pipes 17 may be fastened to the support structure 11 and to the roof 10 with appropriate fasteners.

[0029] On the external operator stand 13, a separate structure 19 for supporting the spray apparatus 18 is provided, wherein the structure 19 may be fastened to the paving screed 8. The floor or tread surface 12′ of the external operator stand 13 is already at a height of, for example, 30 cm to 50 cm above the substrate U.

[0030] FIG. 2 shows a perspective view of a second embodiment of a road construction machine in the form of a feeder vehicle 30 with which a road finisher 2 may be supplied with asphalt. The feeder vehicle 30 has a main operator stand 9 analogous to the operator stand 9 of the road finisher shown in FIG. 1. In FIG. 2, the tank 15 of the cooling system K and a spray nozzle 18′ fastened to the roof 10 as the spray apparatus 18, as well as the tread surface 12 of the operator stand 9, are only indicated schematically. Otherwise, the features of the cooling system 2 on the feeder vehicle may relate to those of the cooling system K explained with reference to FIG. 1.