KR20060043160A - Arrangement structure for cooling device of construction machinery - Google Patents

Abstract

An object of the present invention is to provide a cooling device arrangement of a construction machine, which can reduce the number of parts and reduce the space for arranging a heat exchanger.

To this end, a cooling device including an oil cooler 7 and a radiator 8 and a cooling fan 10 for cooling the oil cooler 7 and the radiator 8 is arranged in the pivot member 2 of the hydraulic excavator. The radiator 8 is disposed so as to oppose each of the side portions of the radiator 8 to each of the front side wall member 4a and the rear side wall member 4b, which are members constituting the engine room 4. And a first protrusion 8a and a second protrusion 8b formed on each side of the radiator 8 to seal the gap between the first protrusion 8a and the front wall member 4a. The 1st sealing member 11 and the 2nd sealing member 12 which seals the clearance gap between the 2nd protrusion part 8b and the back side wall member 4b were provided.

Engine Room, Radiator, Cooling Fan, Oil Cooler, Swivel Member

Description

ARRAYGEMENT STRUCTURE FOR COOLING DEVICE OF CONSTRUCTION MACHINERY}

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a side view showing a hydraulic excavator as an example of a construction machine provided with a first embodiment of a cooling device arrangement structure of a construction machine of the present invention.

FIG. 2 is a perspective view showing an internal configuration of an engine room provided in the hydraulic excavator shown in FIG. 1; FIG.

FIG. 3 is a view showing a radiator disposed in the engine room shown in FIG. 2, FIG. 3A is a plan view, and FIG. 3B is a front view.

4 is an enlarged view of a main portion in FIG. 3A, FIG. 4A is an enlarged view of portion A, and FIG. 4B is an enlarged view of portion B. FIG.

FIG. 5 is a perspective view showing an internal configuration of an engine room for explaining a second embodiment of the present invention. FIG.

FIG. 6 is a view showing an oil cooler and a radiator disposed in the engine room shown in FIG. 5, FIG. 6A is a plan view, and FIG. 6B is a front view.

<Explanation of symbols for the main parts of the drawings>

1: traveling member

2: turning member

3: front work machine

4: engine room

4a: front side wall member

4b: rear side wall member

5: air inlet

6: engine placement unit

7: oil cooler (heat exchanger)

8: radiator (heat exchanger)

8a: first protrusion

8b: second projection

9: engine

10: cooling fan

11: first sealing member

12: second sealing member

13: oil cooler (heat exchanger)

13a: protrusion

14 radiator (heat exchanger)

14a: first protrusion

14b: second projection

15: first sealing member

16: second sealing member

17: sealing member

19: counter weight

20: forward and backward direction

 The present invention relates to a cooling device arrangement of a construction machine, in which a cooling device including a heat exchanger such as a radiator and a cooling fan for generating a cooling wind for cooling the heat exchanger is provided in a main body of a construction machine such as a hydraulic excavator. .

As a conventional technique of this kind, there exists a technique of patent document 1, for example. This prior art arrange | positions the cooling apparatus containing the radiator or heat exchanger and the radiator fan which generate | occur | produces the cooling wind which cools this heat exchanger in the bonnet or the wall member arrange | positioned in the main body of an engine work machine, will be. Between the heat exchanger and the wall member, a large windshield part is interposed, and a sealing stand made of rubber, sponge or the like that seals the gap with the wall member is disposed on the outer edge of the windshield part.

[Patent Document 1] Japanese Patent Application Laid-Open No. 11-93664

The above-described prior art has a problem in that the number of parts is large, and the number of manufacturing steps is increased, thereby increasing the production cost, since the windshield part, which is an independent part, is provided between the wall member and the radiator disposed on the main body. In addition, the space for arranging the heat exchanger is also required to be reduced in connection with the miniaturization of construction machinery, which is expected in recent years, and in particular, it is required to reduce the size of the main body, which is a direction connecting both sides of the heat exchanger. Since the above-mentioned prior art arrange | positions a windscreen part with a comparatively large shape between a heat exchanger and a wall member, it is also difficult to make small the space for arranging this heat exchanger.

The present invention has been made from the above-described solid shape in the prior art, and an object thereof is to provide a cooling device arrangement structure of a construction machine which can reduce the number of parts and reduce the space for arranging the heat exchanger. .

In order to achieve the above object, the present invention provides a cooling device arrangement structure of a construction machine, comprising a cooling device including a heat exchanger and a cooling fan for generating a cooling wind for cooling the heat exchanger in the body of the construction machine, The heat exchanger is disposed so as to face the side of the heat exchanger against a wall member installed in the main body, and a protrusion is formed on the side of the heat exchanger, and the side and the wall of the heat exchanger are formed on the protrusion. A sealing member for sealing a gap with the member is provided.

According to the present invention constituted as described above, the protrusion provided with the sealing member for sealing the gap between the wall member installed in the main body and the side of the heat exchanger is formed on the side of the heat exchanger, and thus the gap between the side of the heat exchanger and the wall member. It is not necessary other than the sealing member as a member for sealing the. Moreover, since the projection part provided with the sealing member can be formed in the shape of small enough in the side part of a heat exchanger, the dimension of the direction which connects both side parts of a heat exchanger can be set small. Therefore, the arrangement space of the heat exchanger can be made small.

Further, the present invention is characterized in that protrusions are formed on each of both side portions of the heat exchanger, and the sealing member is provided on each of the protrusions.

Further, the present invention is characterized in that the projection is formed only on one side of both sides of the heat exchanger, and the projection is provided with the sealing member.

The present invention is also characterized in that the sealing member is made of a rubber member having a C-shaped cross section in the present invention.

Moreover, this invention is characterized in that the said wall member is a structural member of the engine room in which the engine which drives the said cooling fan is arrange | positioned in the said invention.

Moreover, in this invention, the said some heat exchanger was arrange | positioned in parallel with the flow of the said cooling wind which cools this heat exchanger in the said invention, It is characterized by the above-mentioned.

 EMBODIMENT OF THE INVENTION Hereinafter, the best form for implementing the cooling apparatus arrangement structure of the construction machine which concerns on this invention is demonstrated based on drawing.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a side view showing a hydraulic excavator serving as an example of a construction machine provided with a first embodiment of a cooling device arrangement structure of a construction machine of the present invention. The hydraulic excavator shown in FIG. 1 is rotatably mounted to the traveling member 1, the main body disposed on the traveling member 1, that is, the pivoting member 2, and the pivoting member 2 in the up-down direction. A front work machine 3 including a boom, an arm, a bucket, and the like is provided. The revolving member 2 is provided with a building, that is, an engine room 4, and is provided with the first embodiment of the arrangement structure of the cooling device to be the object of the present invention in the engine room 4. Reference numeral 19 shown in FIG. 1 denotes a counter weight for securing a weight balance, and 20 denotes a direction for connecting both sides of a heat exchanger, which will be described later, disposed in the engine room 4, that is, before and after the turning member 2. The direction is shown.

FIG. 2 is a perspective view showing an internal configuration of an engine room provided in the hydraulic excavator shown in FIG. This first embodiment includes a plurality of heat exchangers, for example, an oil cooler 7, a radiator 8, and a cooling fan 10, inside the engine room 4 disposed on the swinging member 2. The cooling device to arrange | position is arrange | positioned.

The oil cooler 7 and the radiator 8, that is, the plurality of heat exchangers, are arranged in series with respect to the flow of cooling air introduced into the air inlet 5. The cooling fan 10 is driven by the engine 9 arranged in the engine arranging unit 6.

FIG. 3 is a view showing a radiator disposed in the engine room shown in FIG. 2, (a) is a plan view, (b) is a front view, and FIG. 4 is an enlarged view of a main part in (a) of FIG. , (a) is a portion A enlarged view, (b) is a portion B enlarged view.

As shown in Figs. 3 and 4, the first embodiment particularly includes a wall member, i.e., an engine room 4, in which side portions of the heat exchanger, for example, both sides of the radiator 8 are installed in the main body. The radiator 8 is disposed so as to face each of the front side wall member 4a and the rear side wall member 4b constituting the same, and at the same time, for example, projections, i.e., on both sides of the radiator 8, The 1st protrusion part 8a and the 2nd protrusion part 8b are formed.

Moreover, the 1st sealing member 11 which seals the clearance gap between the 1st protrusion part 8a of the radiator 8 mentioned above and the front side wall member 4a which comprises the engine room 4, and the radiator 8 of The 2nd sealing member 12 which seals the clearance gap between the 2nd projection part 8b and the back side wall member 4b is provided. As shown in Fig. 4, the first sealing member 11 and the second sealing member 12 are made of, for example, a rubber member which is a C-shaped elastic body in cross section.

In the first embodiment, the cooling fan 10 is rotated by the driving of the engine 9, and the cooling air introduced from the air inlet 5 by the rotation of the cooling fan 10 is the oil cooler 7 and the radiator. It passes through (8), is guided to the engine mounting part 6, and is discharged | emitted from this engine mounting part 6. By the flow of this cooling wind, the oil cooler 7 cools the working oil, and the radiator 8 cools the engine cooling water.

According to the first embodiment, the first protrusions 8a and the second protrusions 8b provided with the first sealing member 11 and the second sealing member 12 are respectively provided on both side portions of the radiator 8. Since it is formed, it is not necessary other than the 1st sealing member 11 as a member which seals the clearance gap between the one side part of the radiator 8 and the front side wall member 4a. Similarly, it is not necessary other than the second sealing member 12 as a member for sealing the gap between the other side portion of the radiator 8 and the rear side wall member 4b. Therefore, the number of parts can be reduced, and the number of manufacturing processes can be reduced with this, and manufacturing cost can be made low. Moreover, the 1st protrusion part 8a and the 2nd protrusion part 8b with which the 1st sealing member 11 and the 2nd sealing member 12 are provided are formed in the shape small enough in each of both side parts of the radiator 8, respectively. Therefore, the dimension of the front-back direction 20 shown in FIG. 2 which connects the both sides of the radiator 8 can be set small. Therefore, the arrangement space of the radiator 8 and the oil cooler 7 can be made small, and the miniaturization of the turning member 2 of this hydraulic excavator can be realized by this.

In addition, since the 1st sealing member 11 and the 2nd sealing member 12 consist of a rubber member, when replacing the radiator 8, such a 1st, 2nd sealing member 11, 12 is replaced by a radiator 8 The first protrusion 8a and the second protrusion 8b of () can be easily attached and detached, and the replacement of the heat exchanger including the radiator 8 is easy.

FIG. 5 is a perspective view showing an internal configuration of an engine room explaining a second embodiment of the present invention, FIG. 6 is a view showing an oil cooler and a radiator arranged inside the engine room shown in FIG. 5, (a ) Is a top view, and (b) is a front view. 6A is equivalent to that shown in FIG. 4A, and the shapes of B1 and B2 in FIG. 6A are the same as those of FIG. It is roughly equivalent to what is shown by b).

In the second embodiment, as illustrated in FIG. 5, a plurality of heat exchangers, for example, an oil cooler 13 and a radiator 14, are arranged in parallel with the flow of cooling air introduced into the air inlet 5. . That is, this oil cooler 13 is arrange | positioned so that one side part of the oil cooler 13 may oppose the front side wall member 4a which is a member which comprises the engine room 4, and the radiator 8 of The other side of the radiator 8 is opposed to the rear side wall member 4b, which is a member constituting the engine room 4, so that one side is opposed to the other side of the oil cooler 13. The radiator 8 is arrange | positioned.

The protruding portion 13a is formed on one side of the oil cooler 13. On both sides of the radiator 8, the 1st protrusion part 14a and the 2nd protrusion part 14b are formed, respectively.

6, the sealing member 17 which seals the clearance gap between the protrusion part 13a of the oil cooler 13, and the front side wall member 4a, and the 1st protrusion part 14a of the radiator 14 are shown. And a gap between the first sealing member 15 that seals the gap with the other side of the oil cooler 13, and the gap between the second protrusion 14b of the radiator 14 and the rear side wall member 4b. The second sealing member 16 is provided. The sealing member 17 and the 1st, 2nd sealing member 15 and 16 mentioned above are comprised with the rubber member whose cross section is a C-shaped elastic body, for example. The other structure is equivalent to the thing in 1st Embodiment mentioned above.

In the second embodiment configured as described above, the protrusion 13a with which the sealing member 17 is provided is formed on one side of the oil cooler 13, and the first and second sealing members 15, 16 are provided. Since the first and second protrusions 14a and 14b are formed on both sides of the radiator 14, the first and second protrusions 14a and 14b seal the gap between one side of the oil cooler 13 and the front wall member 4a. It is not necessary other than the sealing member 17. Similarly, as a member for sealing a gap between the other side of the oil cooler 13 and one side of the radiator 14, and also sealing a gap between the other side of the radiator 14 and the rear side wall member 4b. As the member to be used, it is not necessary other than the first and second sealing members 15 and 16. Therefore, the number of parts can be reduced, and the number of manufacturing processes can be reduced with this, and manufacturing cost can be made low. Moreover, the protrusion part 13a with which the sealing member 17 is provided can be formed in the shape small enough in one side of the oil cooler 13, and the 1st, 2nd sealing member 15 and 16 are provided Since the first and second protrusions 14a and 14b can be formed in sufficiently small shapes on each side of the radiator 14, the dimensions of the front-rear direction 20 in FIG. 5 connecting both sides of the radiator 14 can be formed. Can be set small. Therefore, the arrangement space of the radiator 14 and the oil cooler 13 can be made small, and the miniaturization of the turning member 2 of the hydraulic excavator can be realized by this.

In addition, since the sealing member 17 and the 1st, 2nd sealing member 15 and 16 consist of a rubber member, when the oil cooler 13 and the radiator 14 are replaced, the sealing member 17 or the 1st The second sealing members 15 and 16 can be easily detached from the projections 13a of the oil cooler 13 or the first and second projections 14a and 14b of the radiator 14, The exchange of these heat exchangers is simple.

Since the present invention has a configuration in which a projection is formed on the side of the heat exchanger, and the projection is provided with a sealing member, the number of parts can be reduced, and thus, the number of manufacturing steps can be reduced in comparison with the prior art. You can make it cheaper. Moreover, the space for arranging the heat exchanger can be made small, whereby the construction machine can be miniaturized.

Claims (6)

In the cooling device arrangement structure of the construction machine which arrange | positions the cooling device containing the heat exchanger and the cooling fan which produces the cooling wind which cools this heat exchanger in the main body of a construction machine, Arranging the heat exchanger such that the side of the heat exchanger is opposed to a wall member installed in the main body, And a sealing member formed on said side of said heat exchanger, said sealing member sealing a gap between said side of said heat exchanger and said wall member. The structure of claim 1, wherein protrusions are formed on each of both sides of the heat exchanger, and the sealing members are provided on each of the protrusions. The structure of the cooling apparatus arrangement of the construction machine according to claim 1, wherein a protrusion is formed only on one side of both sides of the heat exchanger, and the protrusion is provided with the sealing member. The structure of claim 1, wherein the sealing member is made of a C-shaped rubber member in cross section. The structure of claim 1, wherein the wall member is a structural member of an engine room in which an engine for driving the cooling fan is disposed. The structure of the cooling apparatus arrangement of the construction machine of Claim 1 which arrange | positioned the said some heat exchanger in parallel with the flow of the said cooling wind which cools this heat exchanger.

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