JPH0238823Y2 - - Google Patents

Description

[Detailed explanation of the idea] This idea includes a radiator mounted on the top of the engine, a radiator cooling fan installed at the inside of the radiator, and a radiator cooling fan installed from the outside of the radiator to the side of the engine. This invention relates to an improvement in a radiator cooling device for a combine harvester, which is provided with a dustproof duct and configured to suck outside air through an outside air intake port with a dustproof screen provided on the side surface and both front and rear sides of the dustproof duct and guide it to the radiator.

The above-mentioned radiator cooling system was designed to extend the dustproof duct to the outside side of the engine to increase the area of the outside air inlet and prevent early clogging of the dustproof screen. The amount of air taken into the outside air inlet on the side opposite to the front of the cooling air inlet increased locally, and the dustproof screen in this area quickly became clogged.

Additionally, in order to equalize the intake negative pressure in the dust-proof duct, a wind shield plate is generally installed at a location facing the cooling air inlet of the radiator to prevent shortening of the intake air. If the dustproof duct is box-shaped and extends downward from the outside of the radiator, simply installing a wind shield will not work.
The inflow of air from the downwardly extending portion of the dustproof duct, which is farthest from the cooling air inlet of the radiator, was insufficient. To achieve this, it is possible to partially drill vents in the wind shield or install multiple wind shields appropriately, but both of these methods are time-consuming and costly to process and assemble. I tended to.

This idea was made by focusing on the above point, and by using a wind shield plate that is simple in shape and easy to manufacture and assemble, it is possible to make the intake pressure at each outside air intake port as uniform as possible. This is an attempt to provide a radiator cooling device that can.

The feature of the present invention is that, in the radiator cooling system having the above configuration, a wind shielding plate facing the cooling air inlet of the radiator is provided inside the dustproof duct, the upper end of which is close to the radiator side, and the lower end of which is lateral. The main feature is that the auxiliary wind shield plate is provided in an inclined position approaching the vertical midpoint of the outside air intake port on the side, and that an auxiliary wind shield plate is provided extending from the front side and the rear side of the wind shield plate toward the radiator side.

In other words, the inclined wind shield facing the cooling air inlet of the radiator not only has an intake pressure dispersion function of preventing the intake pressure of the cooling fan from directly acting on the upper half of the outside air intake on one side of the dust-proof duct, but also It also has a wind guiding function that guides the outside air taken in from the lower part of the outside air inlet on the side diagonally upward to the cooling air inlet of the radiator, and evenly distributes the outside air from the wide outside air inlet formed on the side of the duct. Now I can inhale it.

In addition, the auxiliary wind shields that extend toward the radiator from both front and rear sides of the slanted wind shield plate also have a wind shielding function that prevents air intake from short-circuiting from the outside air intake ports provided on the front and rear sides of the duct to the cooling air inlet of the radiator. As well,
It also acts as a wind guide plate that forms an intake passage through the inside of the inclined wind shield plate, and has a relatively uniform air flow in each of the front and rear outside air intakes and the large upper and lower side outside air intakes. By applying intake pressure, it is now possible to take in fresh air that is less likely to cause local clogging, and to cool the radiator continuously for a long period of time.

Furthermore, the above-mentioned wind shielding plate has a simple shape in which auxiliary wind shielding plates are arranged in front and behind the inclined wind shielding plate so as to form a U-shape when viewed from above, so it is easy to manufacture and process. In addition, it can be attached and detached as a single wind shield unit, which is advantageous in terms of assembly and maintenance.

Examples of this invention will be described below based on the drawings.

Figure 1 shows the right side of the front part of the combine, and a control platform 4 is connected to the right side of the front end of a chassis 3 equipped with a crawler traveling device 1 and a threshing device 2. A horizontal engine 5 is mounted, and a control seat 7 is attached to the upper part of a ponnet 6 that covers the engine 5. Further, a reaping portion 8 is provided on the left side of the front end of the chassis 3.
are connected so that they can be raised and lowered hydraulically.

An output shaft 9 is provided on the inside of the machine body of the engine 5, and a hydraulic unit 10 that is directly connected and protrudes from the outside of the machine body to serve as a hydraulic pressure source for a hydraulic system for raising and lowering the reaping section and other hydraulic systems. There is.

Further, a radiator 11 is directly connected to the upper part of the engine 5, and a radiator cooling fan 12 is provided on the inside of the body of the engine 5, and a box-shaped dustproof duct 13 is provided on the outside of the body of the radiator 11.
is installed.

The dust-proof duct 13 is wider in the front and back than the cooling air inlet 14 of the radiator 11, and is deformed to have a substantially inverted L-shape when viewed in the front-rear direction with the lateral outer surface extending to a location outside the hydraulic unit 10. It has a box-like structure, and outside air intake ports 15, 16, 17 with dustproof screens are formed on the lateral outer surface and both front and rear surfaces.

Inside the dustproof duct 13, a radiator 1 is installed.
A wind shielding plate 18 facing the cooling air inlet 14 of
The inner wall material 1 of the dust-proof duct 13 is arranged in an inclined position such that its upper end approaches the radiator side and its lower end approaches the upper and lower intermediate position of the outside air intake port 15 on the side.
A pair of upper and lower arched stays 20, 2 attached to
It is bolted to 0. Also, this wind shield plate 18
Auxiliary wind shielding plates 21, 21 are integrally bent and extended from both front and rear sides toward the radiator 11 side. Then, the upper end of the inclined windshield plate 18 and the inner wall material 1
9 = C ₁ and between the front and rear auxiliary wind shields 20 and the inner wall material 19 = C ₂ , and these wind shields 18, 20, 20 that are connected in a U-shape in plan view. The structure is such that dust-proof cooling air is drawn into the cooling air inlet 14 of the radiator 11 through a passage formed inside.

[Brief explanation of the drawing]

The drawings show an embodiment of the radiator cooling device for a combine harvester according to the present invention, in which Fig. 1 is a right side view of the front part of the combine, Fig. 2 is a vertical cross-sectional rear view of the main part, and Fig. 3 is a cross-sectional plan view of the main part. , FIG. 4 is an exploded perspective view of the wind shield mounting structure. 5...Engine, 10...Hydraulic unit, 11
...Radiator, 12...Radiator cooling fan, 13...Dust-proof duct, 15, 16, 17...
Outside air intake port, 18... wind shield, 21... auxiliary wind shield.

Claims (1)

[Claims for Utility Model Registration] 1. A radiator 11 is mounted on the upper part of the engine 5, and a radiator cooling fan 12 is installed on the inside of the radiator 11 inside the fuselage. A dustproof duct 13 is provided across the lateral outer side, and outside air is sucked in from outside air intake ports 15, 16, and 17 with dustproof screens provided on the lateral side and both front and rear sides of the dustproof duct 13 and guided to the radiator 11. A radiator cooling device for a combine harvester, in which a wind shield plate 18 is provided inside the dustproof duct 13 and faces the cooling air inlet 14 of the radiator 11.
The wind shield plate 18 is provided in an inclined position with its upper end approaching the radiator side and its lower end approaching the vertical midway point of the outside air intake port 15 on the side.
A radiator cooling device for a combine harvester in which auxiliary wind shield plates 21, 21 are extended from the front side and rear side toward the radiator 11 side. 2 The auxiliary wind shielding plates 21, 21 are arranged as inclined wind shielding plates 18.
The radiator cooling device according to claim 1, which is integrally connected with the radiator cooling device.