JPH0960521A - Wind direction changing member for radiator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a core part from being damaged by covering a radiator with a wind direction changing member for changing a flow of discharge air from the radiator, and fixing this air direction changing member with a mounting stay of the radiator. SOLUTION: In a wheel loader, a radiator 16 is arranged in a rear part of a cooling fan in a rear end of a rear frame 3. Both side surfaces of the radiator 16 are fixed through a mounting stay 20 to a mounting frame 21 protrusively provided in the rear frame 3. Here, a discharge air cover 22 is arranged as an air direction changing member so as to cover a core part in a rear surface of the radiator 16. In the discharge air cover 22, many wind direction plates 22b to 22d molded in doglegged shape as viewed by side and plate-shaped wind direction plate 22e are arranged to be tilted so as to lower a rear side parallelly with a suitable space apart between both side plates 22a, 22a, and discharge air guided downward in a ground surface side. In this way, a noise level is decreased by expanding a sound, and the core part is prevented from being damaged at maintenance time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a wind direction changing member provided on a body of a radiator for changing the flow of exhaust air from the radiator.

[0002]

2. Description of the Related Art A radiator is provided behind the engine,
Cooling water is accommodated in the radiator to circulate the engine to cool the engine, and an opening is provided in the bonnet to release heat generated in the engine compartment.
It has been conventionally performed to forcibly discharge by a cooling fan or send cooling air to the engine side for cooling. In order to discharge the air in the engine room, which has been heated, to the outside, a technology is known in which an exhaust port is provided on a side surface or front and rear surfaces of the bonnet, and a guide which is directed obliquely downward or rearward is provided at the exhaust port. . For example, the actual Kosho 50-
There are technologies such as No. 8807 and Japanese Utility Model Publication No. 60-27098.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
In the techniques of No. 07 and Japanese Utility Model Publication No. 60-27098, the exhaust air guides are both provided on the bonnet. For this reason, during maintenance with the bonnet open, the radiator core is exposed, and the operator's knees, hands, or tools may hit the core when inspecting or repairing the engine and other parts inside the engine compartment. In such a case, the exposed core is likely to be distorted and damaged.

[0004]

The present invention is configured as follows to solve the above problems. That is, a cooling fan is provided in the rear part of the engine, a radiator is arranged in the rear part of the engine, and in a configuration in which these are covered with a bonnet, an air flow direction changing member that changes the flow of exhaust air from the radiator is provided on the exposed part of the radiator core part. It was arranged so as to cover, and the wind direction changing member was fixed together with the radiator mounting stay.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of an articulated wheel loader having a radiator equipped with a wind direction changing member of the present invention will be described. 1 is an overall side view of a wheel loader, FIG. 2 is a side view of a wind direction changing member mounting portion on a radiator, FIG. 3 is a perspective view of the same, FIG. 4 is a cross-sectional view of a wind direction changing member, and FIG. FIG.

Referring to FIG. 1, the overall configuration will be described. In the wheel loader, a pivot shaft 1 is provided in the center, a front frame 2 and a rear frame 3 are rotatably connected to each other, and a steering handle 4 is rotated so that the front frame 2 can be swung left and right to be steered. There is. A front wheel 5 is suspended on the front frame 2, and an arm 7 is pivotally supported on an upper portion of a support frame 6 which is erected on the front frame 2, and a bucket 8 is arranged at a front end of the arm 7. A hydraulic cylinder 9 arranged in between makes it possible to move up and down.
Makes the bucket 8 rotatable via a link.

A rear wheel 11 is suspended from the rear frame 3,
An operation column 12 is erected on the front part of the rear frame 3, a steering handle 4 is provided on the operation column 12, a bonnet 13 is arranged behind it, and a seat 14 is arranged on the front part of the bonnet 13. However, the engine E is arranged in the bonnet 13. A hinge 15 is provided on the lower front portion of the bonnet 13 so that it can be opened upward and forward.

A counterweight 17 is fixed to the rear end of the rear frame 3, a grill 19 is provided on the counterweight 17, and a bonnet 13 is provided on the grill 19.
The front part of the can be placed and fixed. And
A cooling fan 18 is provided at the rear part of the engine E housed in the bonnet 13, and a radiator 16 is arranged at the rear part of the engine and is covered with the bonnet 13. The hood 13
An opening for communicating with the outside air is provided on the side surface or the rear surface of the. Then, as shown in FIGS. 2, 3 and 4, a mounting frame 2 for mounting the grill 19
1 is projected from the rear frame 3, and the mounting stays 20 and 20 are fixedly mounted on the mounting frame 21.
Both side surfaces of the radiator 16 are fixed to the 20 by bolts 25.

An air exhaust cover 22 as an air flow direction changing member of the present invention is arranged so as to cover the core portion on the rear surface of the radiator 16, and the air exhaust cover 22 is located at a position corresponding to the left and right width of the radiator 16. Side plates 22a, 22a are arranged on both sides, and the side plates 22a, 22a are side views of the bonnet 1.
In order to match the shape of the front part of 6, a trapezoidal shape is formed so that it becomes wider toward the bottom. And the side plate 22a
.A wind direction plate 22 formed in a "V" shape in a side view between 22a
b, 22c, 22d and a plate-shaped wind direction plate 22e are installed side by side with an appropriate interval substantially inclined in parallel so that the rear side is lowered, and the exhaust air is guided downward on the ground side.

The size of the exhaust cover 22 is such that it covers the exposed portion of the core portion of the rear surface of the radiator 16 when the bonnet 13 is opened, and the lower portion of the radiator 16 has a counterweight 17 and a grill 19. Since it is covered with, it is sized to cover the exposed part of the upper part. Stays 23 and 23 are fixed to the outside of the side plates 22a and 22a. The stays 23 and 23 extend forward and are fixed to the mounting stay 20 together with the mounting stay 20 by bolts 25. However, the number of bolts is reduced. However, in this embodiment, the exhaust cover 22
Is fixed to the radiator 16 via the stays 23, 23, but may be fixed directly to the rear frame 3 on the main body side or the mounting stay 20, and the side plate 22a. 22a may be extended and fixed.

With such a configuration, the radiator 1
The exhaust air from 6 is shown in the arrow of FIG.
The wind direction plates 22b, 22c, 22d, and 22e are bent downward, diffused, and discharged to the rear on the ground side, and discharged from the grill 19 and the opening at the rear of the bonnet 13 to the outside of the machine. The sound generated from the engine E also flows in the same manner as the exhaust air, and when it goes out from the radiator 16 side in the outward direction, it cannot come out directly, and the wind direction plates 22b.
The noise is further reduced by hitting 2c, 22d, and 22e and bending downward, and the presence of this one cushion allows the noise to be emitted to the outside of the machine below the opening in the rear portion of the grill 19 and the bonnet 13. Therefore, even if a person is located on the side, the noise from the engine E is heard as a sound reflected from the ground, so that the noise is further reduced.

Further, the wind direction plates 22b, 22c, 22d.
Further, as shown in FIG. 5, sound absorbing members 24, 24 ... Made of rubber, sponge, foaming member, etc. are provided on the side of the wind direction plates 22b, 22 on the side where the exhaust air from the radiator 16 hits, respectively.
It can also be attached to the lower surface of c · 22d. In this way, the sound absorbing members 24, 24 ... Are attached to the wind direction plates 22b, 22c, 22d.
The sound absorbing member 24 can absorb the noise generated from the engine E to lower the noise level and further reduce the noise.

[0013]

Since the present invention is constructed as described above, it has the following effects. That is, by providing a wind direction changing member on the radiator, the flow of exhaust air can be diffused toward the ground, noise is also directed downward, and it is also reflected once before going out of the aircraft to diffuse the sound. The noise level can be reduced. Moreover, since the wind direction changing member is attached in close contact with the radiator, there is little leakage and the noise level can be further reduced. Furthermore, since the wind direction changing member covers the radiator core, which was conventionally exposed, the human body and tools, etc. should touch the radiator core directly when opening the bonnet and performing maintenance inside the engine room. Can be prevented and damage to the core can be prevented.

Further, since the wind direction changing member is fastened and fixed together with the mounting stay of the radiator, the number of fixing members such as bolts can be reduced. Therefore, the wind direction changing member can be used for maintenance of the radiator itself and its peripheral members. The changing member can be easily attached and detached. Further, the wind direction changing member can be easily attached later, and can be attached to the conventional model as it is, so that the noise can be reduced and the core can be protected without replacing the radiator itself.

[Brief description of drawings]

FIG. 1 is an overall side view of a wheel loader.

FIG. 2 is a side view of an airflow direction changing member attachment portion to a radiator.

FIG. 3 is a perspective view of the same.

FIG. 4 is a sectional view of a wind direction changing member.

FIG. 5 is a sectional view showing a sound absorbing member attached.

[Explanation of symbols]

 E engine 13 bonnet 16 radiator 18 cooling fan 20 mounting stay 22 wind exhaust cover (wind direction changing member) 23 stay

Claims (1)

[Claims] 1. A structure in which a cooling fan is arranged between an engine and a radiator, and these are covered with a bonnet,
An airflow direction changing member for a radiator, characterized in that the radiator is covered with an airflow direction changing member for changing the flow of exhaust air from the radiator, and the airflow direction changing member is fixed together with a mounting stay of the radiator.