Engineering machinery cooling device collocating structure

Abstract

This inveniton provides a cooling device disposition structure of a construction machine, decreasing the number of parts and reducing the disposition space of a heat exchanger. In this structure, a cooling device including an oil cooler 7, a radiator 8 and a cooling fan 10 for cooling the oil cooler 7 and the radiator 8 is disposed in a revolving structure 2 of a hydraulic shovel. The radiator 8 is disposed so that both side parts of the radiator 8 are respectively opposite to a front wall member 4a and a rear wall member 4b which are members constituting an engine room 4. A first projecting part 8a and a second projecting part 8b are formed on both side parts of the radiator, respectively, and a first seal member 11 sealing a gap between the first projecting part 8a and the front wall member 4a and a second seal member 12 sealing a gap between the second projecting part 8b and the rear wall member 4b are provided.

Description

technical field [0001] The invention relates to a cooling device arrangement structure of construction machinery, which is used to arrange a cooling device in the main body of construction machinery such as a hydraulic excavator. The cooling device includes: a heat exchanger such as a radiator, and an induction cooling heat exchanger. Cooling fan unit for cooling air. Background technique [0002] Such prior art includes, for example, the technology described in Japanese Patent Application Laid-Open No. 11-93664. This prior art is to arrange a cooling device inside the hood of the main body of the engine working machine, that is, the inside of the wall member, and the cooling device includes a radiator, that is, a heat exchanger; Cooling fan, that is, cooling fan. The larger windshield part is interposed between the heat exchanger and the wall member, and a sealing tape, that is, a sealing member is arranged on the outer edge of the windshield part. The sealing member is m...

AI Technical Summary

Problems solved by technology

[0003] Since the above-mentioned prior art is provided with a windshield part as an independent part between the wall member arranged on the main body and the heat sink, the number of parts is large, and the manufacturing man-hours are increased accordingly, and the manufacturing cost is increased.

In addition, related to the recent demand for miniaturization of construction machinery, the arrangement space of the heat exchanger needs a small space, and it is particularly desired to reduce the size of the main body in the front-rear direction in the direction connecting the two sides of the heat exchanger. However, due to the In the prior art, a relatively large windshield is arranged between the heat exchanger and the wall member, so it is difficult to reduce the arrangement space of the heat exchanger

Images