JP2543028Y2 - Oil cooler mounting structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil cooler mounting structure for a working vehicle such as a backhoe or the like, and more particularly, to an oil cooler mounting method in which an oil cooler is disposed close to a cooling air flow path of an engine cooling radiator. Regarding the structure.

[0002]

2. Description of the Related Art In the above-mentioned oil cooler mounting structure, conventionally, a meandering pipe type oil cooler is connected and fixed via brackets over upper and lower portions of a peripheral frame portion of a passage hole in a partition wall for forming a cooling air passage. Had been configured.

[0003]

However, in the above-mentioned conventional structure, dust adhering to the gap between the oil cooler and the radiator by the intake air falls down when the cooling air stops, and the dust below the passage hole. If it accumulates in a narrow gap, there is a drawback that it is difficult to perform a cleaning operation, and it is necessary to perform a frequent dust removal operation, which is a troublesome operation. The purpose of the present invention is to eliminate the above-mentioned disadvantages.

[0004]

According to a feature of the present invention, in the oil cooler mounting structure described at the beginning, the oil cooler is arranged at a position above a cooling air passage hole formed in a partition wall for forming a cooling air passage. Further, an oil cooler mounting stay is connected and fixed across left and right brackets provided on a peripheral frame portion of the passage hole, so that a lower side of a gap between the radiator and the oil cooler is opened. On the point.

[0005]

[Function] Since the oil cooler is arranged at the upper part of the cooling air passage hole where the amount of floating dust such as dust generated during the work is small, it is difficult for dust to adhere to the gap between the oil cooler and the radiator. Even if the dust attached to the portion falls down due to the lack of suction force when the cooling air is stopped, the lower side of the gap is open, so that the dust does not catch on the way and accumulate.

[0006]

[Effects of the Invention] Therefore, with a reasonable oil cooler mounting structure, it is possible to prevent the accumulation of dust in a narrow place without causing a decrease in the cooling efficiency of the oil cooler.
The troublesome work of frequently performing cleaning work such as work for removing accumulated dust can be eliminated.

[0007]

Embodiments will be described below with reference to the drawings. FIG.
Shows the backhoe. This backhoe is configured by connecting a backhoe device 5 via a swing bracket 4 to a traveling machine base 2 provided with a crawler traveling device 1 of a hydraulic motor drive type. The backhoe device 5 pivotally connects the boom 6, the arm 7, and the bucket 8 to each other so as to be swingable relative to each other, and connects each of the hydraulic cylinders C1, C2, C3 to each other.
The swing bracket 4 is configured so as to be swingable by the hydraulic cylinder C4 so that the excavation work can be performed by swinging the drive.

The backhoe is configured as a fully hydraulic system as described above, and is configured to supply pressure oil from a hydraulic pump driven by the power of an engine 10 disposed in the driving unit 9. The configuration is such that a drone cup type oil cooler 11 for cooling hydraulic oil is cooled using cooling air for the engine cooling radiator 12. That is, as shown in FIGS. 1 and 2, an engine cooling radiator 12 is provided in an engine room of the driving unit 9, and a fan 13 that generates cooling air is arranged inside the radiator 12, and the radiator 12 is cooled. On the leeward side, a partition wall 15 for closing the outer peripheral portion between the hood 14 and the bonnet 14 is provided, and the partition wall 15 has a cooling air passage forming hole 1 having the same area as the cooling section of the radiator 12.
6 is formed. Then, the oil cooler 11 is
On the upstream side of the cooling wall of the partition wall 15, the passage hole 16
The upper part of the oil cooler 11 is screwed to an angle type bracket 18 welded and fixed to the upper edge of the peripheral frame portion 17 of the through hole 16.
A mounting stay 20 for mounting the oil cooler 11 is fixedly connected by bolts over left and right brackets 19, 19 which are welded and fixed to both right and left sides. The mounting stay 20 is configured such that a predetermined gap is formed between the oil cooler 11 and the partition wall 15 by bending a bolted portion. Thus, the radiator 12 and the oil cooler 1
The lower side of the gap between the first and second gaps is opened. The left and right brackets 19, 19 are provided with a plurality of mounting portions at the top and bottom, so that they can be mounted even when replacing the oil cooler 11 with a different heat radiation amount.

[Another embodiment] Instead of forming a plurality of connecting portions vertically on the left and right brackets 19, 19, as shown in FIGS.
The upper bracket 18 is removably bolted to the upper edge of the peripheral frame portion 17 of the partition wall 15, and a plurality of bolt connecting portions are formed on the bracket 18 vertically,
It may be configured to easily cope with the case where the oil cooler 11 has a different capacity.

[0010] In the claims of the utility model registration, reference numerals are written to facilitate comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

[Brief description of the drawings]

FIG. 1 is a front view of an oil cooler arrangement portion.

FIG. 2 is a side view of an oil cooler mounting portion.

FIG. 3 is a side view of the backhoe.

FIG. 4 is a front view of an oil cooler arrangement portion according to another embodiment.

FIG. 5 is a side view of an oil cooler disposition portion of another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Oil cooler 12 Radiator 15 Partition wall 16 Passage hole 17 Peripheral frame part 19, 19 Bracket 20 Stay

Claims (1)

(57) [Scope of request for utility model registration] 1. An oil cooler mounting structure in which an oil cooler (11) is arranged close to a cooling air flow path of an engine cooling radiator (12), wherein the oil cooler (11) is connected to a cooling air passage. Left and right brackets (19) and (19) are disposed in the upper part of the cooling air passage hole (16) formed in the forming partition wall (15) and provided on the peripheral frame portion (17) of the passage hole (16). 19), the connecting stay (20) of the oil cooler (11) is connected and fixed,
An oil cooler mounting structure in which a lower side of a gap between the radiator (12) and the oil cooler (11) is open.