JPH0622114Y2 - Combine engine cooling structure - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention provides a cooling air introduction chamber for introducing cooling air to the radiator on the lateral side of an engine bonnet containing a combine radiator, and this cooling air introduction chamber In the engine cooling structure of the combine, a dustproof mesh is stretched at a position facing the radiator intake surface, and a ventilation plate having a large number of intake small holes is arranged between the dustproof mesh and the radiator.

[Conventional technology]

In the engine cooling structure of this type of combine, conventionally, since the dustproof net is simply attached to the outer wall of the cooling air introduction chamber as shown in FIG. 2 of Japanese Utility Model Laid-Open No. 62-121121, suction is applied to the radiator. Due to the influence of the cooling air generated, the central part of the structure sometimes gradually bends (projects) toward the radiator during long-term use.

[Problems to be solved by the invention]

As a result, there is a risk that the bulged portion will be filled with much dust and the like, and the suction efficiency of the cooling air will be reduced.

SUMMARY OF THE INVENTION An object of the present invention is to provide a device capable of preventing a flexure phenomenon of a dustproof net and suppressing a resonance phenomenon of a ventilation plate by operating a simple mechanism on the dustproof net.

[Means for solving problems]

In order to achieve the above object, the present invention provides a cooling air introduction chamber for introducing cooling air to the radiator on the lateral side of an engine hood in which an engine and a radiator are installed, and faces a radiator intake surface in the cooling air introduction chamber. In the engine cooling structure of the combine, the dust net is placed at the position where the dust net and the radiator are provided with a large number of intake small holes between the radiator and the radiator. The stay is attached with both ends of the stay fixed to the ventilation plate, and the middle portion of the stay is projected so that the ventilation plate of the dustproof mesh is in contact with the side surface of the stay. .

[Action]

In other words, even if the stay is attached to the outer wall of the cooling air introduction chamber by the stay being attached to the dust shield by the side of the dust shield on the ventilation plate side, Can be provided with a support structure to prevent bending to the radiator side.

Moreover, since the stays are fixed to the ventilation plates at both ends thereof, the stays serve as reinforcing ribs for the ventilation plates, and a vibration suppressing action can be applied to the ventilation plates that easily vibrate due to the ventilation resistance of the cooling air.

[Effect of device]

Therefore, by simply providing the stays that fix both ends to the ventilation plate and contact the middle part to the dustproof net, the bending phenomenon of the dustproof mesh and the vibration phenomenon of the ventilation plate can be suppressed at once, and the strength of the plate is increased. However, it is possible to provide a useful one (the stay) for a dustproof net / ventilation plate, which is difficult to reinforce because it lacks balance with the engine bonnet.

〔Example〕

The engine cooling structure in the combine will be described. As shown in FIGS. 1 and 3, the driver's seat (4) is placed on the upper surface of the bonnet lower case (3) accommodating the engine (1) and the radiator (2), and the driver's seat (4) is also placed.
A bonnet upper case (5) is installed on the right lateral side of the bonnet, and the bonnet (6) is constructed by connecting the internal spaces of the upper and lower cases (5), (3) to each other.

Left side of driver's seat side of bonnet upper case (5)
(5a) and the opposing right lateral surface (5b) are provided with cooling air inlets (11) with a dust screen, and extend across the front side and right lateral side of the bonnet lower case (3). Radiator (2)
A cooling air introduction chamber (a) is provided for the front side, a cooling air introduction port with a dust net (10) on the front side and a cooling air introduction port with a dust net (8a) on the right side part
(8) is provided so that the cooling air is supplied to the radiator (2) by the suction fan (15) through the intake port (7) provided in the inner wall of the cooling air introduction chamber (a).

Further, on the radiator side of the cooling air introduction port (8) with the dust screen (8a) on the right lateral side, a perforated plate type ventilation plate (9) having a large number of intake small holes (9a) is arranged, Ventilation resistance is given to the cooling air introduced from (8a), and cooling is introduced from the cooling air inlet (10) at the front side and the cooling air inlets (11) and (11) at the top of the bonnet (5). The pressure loss state is made substantially equal to that of the wind so that the cooling air introduced from both paths acts equally on the radiator (2). By the way, the bonnet upper case
The dust-proof net that closes the cooling air inlets (11) and (11) in (5) is a dust-proof net body (12) that integrates the left and right dust-proof nets corresponding to the inlets (11) and (11), respectively. It is fitted and installed in the bonnet upper case (5).

As shown in FIG. 1 and FIG. 2, the stay (13) acting from the inside is attached to the cooling air inlet (8) with the right lateral side dust-proof net (8a) of the bonnet lower case (3). It is provided. The stay (13) is fixed at its upper and lower ends to the ventilation plate (9), and the upper and lower intermediate portions (13a) are projected to the dustproof net (8a) so that the dustproof mesh (8
The ventilation plate (9) of (a) is brought into contact with the side surface of the foam to have a function of preventing the dustproof mesh (8a) from being bent inward. This stay (13)
Are three of the same shape arranged side by side.

[Another embodiment] As shown in FIG. 4, the upper and lower intermediate portions (13a) of the stay (13)
May be set in such a shape that only the portion corresponding to the dustproof net (8a) further projects.

The stay (13) has a vertical posture,
The orientation may be set horizontally, and the orientation of the orientation is not limited.

The stay (13) middle part (13a) is brought into contact with the dust-proof net (8a) so that the dust-proof net is bulged toward the outside so that the stay is stable for a long period of time. The state may be maintained.

The stay (13) is made of a magnetic material to positively protect the dustproof mesh (8
You may take the structure which adsorbs a).

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 shows an embodiment of an engine cooling structure for a combine according to the present invention. FIG. 1 is an overall longitudinal front view, FIG. 2 is a side view of an engine bonnet, FIG. 3 is an overall perspective view, and FIG. It is a vertical section rear view showing another example. (1) …… Engine, (2) …… Radiator, (6) …… Engine bonnet, (8a) …… Dustproof mesh, (9) …… Ventilation plate, (9a)
…… Intake small hole, (13) …… Stay, (13a) …… Middle part.

Claims (1)

[Scope of utility model registration request] 1. A cooling air introduction chamber (a) for introducing cooling air to the radiator (2) is provided on the lateral side of an engine bonnet (6) containing an engine (1) and a radiator (2), and A dustproof net (8a) is stretched at a position facing the radiator intake surface in the cooling air introduction chamber (a), and a large number of intake small holes (9a) are provided between the dustproof net (8a) and the radiator (2). In the combine engine cooling structure in which a ventilation plate (9) having the above-mentioned structure is disposed, a stay is provided on the surface of the ventilation plate (9) on the dust-proof net (8a) side.
(13) is attached with both ends of the stay (13) fixed to the ventilation plate (9), and the middle portion (13a) of the stay (13) is attached to the ventilation net of the dustproof net (8a). Combined engine cooling structure in which the plate (9) is projected so as to contact the side surface of the combine.