JPH0966746A - Radiator dustproof device of service car - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the cooling efficiency by making any generated air by a ducting fan so as to be fed to a radiator and an engine or the like at a time when cooling air travels to the radiator and the engine or the like, in this device provided with this dusting fan for removing dust on a radiator cover. SOLUTION: It is so constituted that this radiator dustproof device of a service car provided with a control means controlling itself so as to make any generated air by a dusting fan 8 be fed toward a radiator 5 at a time when an interrupting means 9 will not interrupt the travel of cooling air in the direction of this radiator 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiator dustproof device for a work vehicle.

[0002]

2. Description of the Related Art A conventional radiator dust proofing device for a working vehicle is:
As shown in Japanese Utility Model Laid-Open No. 2-115023,
On the inner side of the intake surface of the dustproof cover, the discharge port of the cleaning fan is arranged facing the outside of the vehicle body, and a drive device that moves the discharge port along the inner surface of the intake surface is provided. This is a configuration that blows off the dust adhering to the.

[0003]

The radiator dustproof device described above has a drawback in that the cooling air sucked by the radiator fan is blocked by the cleaning fan, and the cooling efficiency of the radiator and engine is reduced. The present invention
It is intended to solve such a problem.

[0004]

A radiator dustproof device for a working vehicle according to the present invention solves the above-mentioned problems and has the following configuration. That is, in the radiator dustproof device for a work vehicle having the above-described configuration, when the blocking means 9 does not block the movement of the cooling air toward the radiator 5, the dustproof fan 8 controls the airflow to be sent toward the radiator 5. A radiator dustproof device for a work vehicle, which is provided with a control means 100.

[0005]

In the normal state, the cooling air passes through the dust cover 10 by the radiator fan 6 and is sent toward the radiator 5 to cool the radiator 5 and the engine. While continuing in such a state, in a work vehicle, particularly in a work vehicle that works in a place where much dust is generated, such as for agriculture, as the cooling air passes through the dust cover 10, the dust covers the dust cover 10. The dust adheres and gradually covers the surface of the dust-proof cover 10, impedes the passage of cooling air, and reduces the cooling efficiency of the radiator 5 and the engine. Therefore, the dustproof fan 8 is rotated under a certain condition to generate air, and the wind is sent toward the dustproof cover 10, that is, toward the outer side of the vehicle body.
The dust adhering to the surface of 0 is removed. At this time, the blocking means 9
By substantially blocking the movement of the cooling air in the radiator 5 direction, the dust removal efficiency is increased.

When the blocking means 9 does not block the movement of the cooling air in the direction of the radiator 5, the cooling air is cooled by the radiator 5.
Although it moves in the direction, in order to prevent the dustproof fan 8 from acting as a resistance and reducing the amount and speed of the cooling air, the dustproof fan 8 is rotated so that the blast is directed toward the radiator 5. It is controlled by the control means 100.

[0007]

1 to 5, there is shown a combine radiator and dustproof device according to an embodiment of the present invention. In front of the machine frame 2 having the traveling device 1, a cutting device 11 for cutting and transferring the planted grain culm to the rear, and a grain culm conveyed from the mowing device 11 to a feed chain 12 further rearward. Supply transport device 13 for transporting toward
Is provided. On the machine body frame 2, the feed chains 12
A threshing device 14 for performing threshing selection while being transported by, a grain tank 15 for temporarily storing the grains selected by the threshing device 14, and an operation unit 4 are mounted. Further, a vertical auger 16 and a horizontal auger 17 for discharging grains temporarily stored in the grain tank 15 are installed.

An engine 3 for driving the traveling device 1 is mounted on the machine body frame 2. FIG. 3 is a sectional view of the same and is a front view of the vicinity from the engine 3 to the dustproof cover 10. The engine 3 is fixed on the machine body frame 2 via a mount rubber 18. The crankshaft 7 projects toward the radiator 5 and drives the shaft 20 from the belt 19 to rotate the radiator fan 6. A radiator 5 is fixed to the body frame 2 on the outer side of the radiator fan 6, and a blocking means 9 is installed on the outer side of the radiator 5.

The blocking means 9 will be described. A plate 21 is fixed to the outside of the radiator 5 and three holes 21a are formed in the plate 21. Cooling air passes through the holes 21a and cools the radiator 5, the engine 3, and the like. To block the cooling air passing through the holes 21a, the holes 21a
Since it is necessary to close a, the plate 22 is provided on the side of the plate 21 and the plate 22 is slid to close the hole 21a. The state shown in FIGS. 3 and 4 is a configuration in which cooling air passes through the holes 21 a of the plate 21. That is, the sliding plate 22 also has a hole 22a, and the hole 22a and the hole 21a of the plate 21 coincide with each other. As a result, the cooling air flows through the holes 22a and 21a.
It will pass through.

When the plate 22 is slid downward from such a state, the holeless portion of the plate 22 closes the hole 21a of the plate 21. In this embodiment,
Although the structure is such that each hole 21a is closed over the entire surface, a structure may be used in which only part of the hole 21a is closed. This allows
The cooling efficiency of the radiator 5, the engine 3, etc. does not drop extremely.

A structure in which the plate 22 is slid vertically will be described with reference to FIG. Engine cover 2
A plate 24 is fixed to the plate 3 with bolts, and a motor 25 is installed on the plate 24. The motor 2
A gear 27 is fixed to the output shaft 26 of No. 5 and a plate 28 having a part of the gear meshing with the gear 27 is provided.
Rotates about the axis 29. Long holes 3 in plate 28
0, and the pin 31 fixed to the plate 22 is engaged in the elongated hole 30. As a result, when the motor 25 rotates forward and backward, the plate 28 rotates about the shaft 29 and the plate 22 slides in the vertical direction via the pin 31.

A dustproof cover 10 is provided further outside the blocking means 9 and a dustproof fan 8 is provided inside the dustproof cover 10. The dustproof fan 8 is fixed to the dustproof cover 10 via a plate 32 with bolts or the like. In the combine having the above-described configuration, the dustproof fan 8 is reversed to rotate the dustproof cover 1 under a certain condition (for example, every certain time).
The dust is attached to the front surface of the dust-proof cover 10 and blown outward to remove the dust. At this time, in order to enhance the dust removal efficiency, the movement of the cooling air toward the radiator 5 is stopped as described above. In the normal state where the dust removal operation is not performed, the cooling air is, of course, the holes 22a of the plate 22 and the plate 21.
Although it moves toward the radiator 5 through the hole 21a, if the dustproof fan 8 remains stopped at this time, it will become a resistance against the passage of cooling air. Therefore, when the plate 22 does not slide and the hole 21a of the plate 21 is not closed, the dust-proof fan 8 is rotated in the normal direction and the generated wind is sent toward the radiator 5.

This electrical configuration is shown in FIG. The detection means 101 for detecting that the plate 22 is not sliding is connected to the input side of the control means 100 (hereinafter referred to as CPU), and the dustproof fan motor 8a and the above-mentioned detection means 101 are connected to the output side thereof. This is a configuration in which the motor 25 of the breaking means 9 having various configurations is connected. When the CPU 100 detects from the signal from the detecting means 101 that the plate 22 is not sliding (open state), it transmits a normal rotation signal to the dustproof fan motor 8a to drive it in the normal rotation direction, and the wind generated in the radiator 5 direction. To send to. The detection means 10
1 is a contact type limit switch in this embodiment.
That is, unless the plate 22 slides downward, the plate 22b fixed to the plate 22 has the limit switch turned on.

With the above-described structure, when the cooling air moves in the direction of the radiator 5, the dustproof fan 8 does not act as a resistance and the radiator 5 and the engine 5 can be cooled efficiently. Next, a condition for reversing the dustproof fan 8 will be described. In the combine, the grains that have been threshed and selected by the threshing device 14 are temporarily stored in the grain tank 15. When the grain in the grain tank 15 becomes full, the vertical auger 1
The grain is discharged from 6 and the horizontal auger 17 to a loading platform such as a truck. In connection with the work of discharging the grain, the dustproof fan 8 is rotated in the reverse direction so that the wind is blown toward the dustproof cover 10.
When the grains in the grain tank 15 are discharged, the mowing device 11, the threshing device 14, and the traveling device 1 are normally stopped, so that a large load is not applied to the engine 3 and at this time, the radiator 5 There is no problem in cooling the radiator 5, the engine 3 and the like even if the cooling air in the direction is blocked, the dust-proof fan 8 is rotated in the reverse direction and the generated wind is sent toward the dust-proof cover 10. If the mowing device 11, the threshing device 14, and the traveling device 1 are operating, the radiator 5 and the engine 3 may have abnormal heat due to the conditions such as the outside air temperature. When the cooling air is shut off,
This can cause overheating, but this can be prevented.

Further, as another embodiment of the reversing condition of the dustproof fan 8, it is assumed that the reaping device 11 and the threshing device 14 are operating for safety. Basically, when the reaping device 11 and the threshing device 14 are in operation, work is in progress, and maintenance and inspection are not performed. At such time, the shut-off means 9 is activated to reverse the dustproof fan 8. It's safe to do. In particular, in the blocking means 9, it is very dangerous to pinch your hand, so safety measures are important.

Next, the block diagram of FIG. 7 will be described. This is a configuration in which the manual switch 102 is provided on the input side of the control means 100 in the block diagram of FIG. 6 described above. The manual switch 102 is a switch for manually activating the dustproof fan motor 8a in reverse, and when the dustproof fan motor 8a is turned on, blows air from the dustproof fan 8 toward the dustproof cover 10 and adheres to the surface of the dustproof cover 10. It removes dust. As described in the above embodiment, the dustproof fan 8 is rotated in reverse at regular intervals under constant conditions. However, if a large amount of dust is generated, it may not be in time, and at that time, the operator arbitrarily reverses the rotation. It is convenient to configure it.

[0017]

Since the present invention is configured as described above, the dustproof fan 8 does not become a resistance when the cooling air moves in the direction of the radiator 5, and the radiator 5 and the engine 5 can be efficiently used.
Etc. can be cooled.

[Brief description of drawings]

FIG. 1 is a right side view of the combine.

FIG. 2 is a left side view of the combine.

FIG. 3 is a sectional view.

FIG. 4 is a side view of the blocking means.

FIG. 5 is a perspective view of the blocking means.

FIG. 6 is a block diagram.

FIG. 7 is a block diagram.

[Explanation of symbols]

1 ... Traveling device, 2 ... Airframe, 3 ... Engine, 4 ...
Operation part, 5 ... Radiator, 6 ... Radiator fan, 7 ...
Crankshaft, 8 ... Dustproof fan, 8a ... Dustproof fan motor, 9 ... Blocking means, 10 ... Dustproof cover, 11 ... Mowing device, 12 ... Feed chain, 13 ... Feeding and conveying device, 1
4 ... Threshing device, 15 ... Glen tank, 16 ... Vertical auger,
17 ... Horizontal auger, 18 ... Mount rubber, 19 ... Belt,
20 ... Shaft, 21 ... Plate, 21a ... Hole, 22 ... Plate, 22a ... Hole, 22b ... Plate, 23 ... Engine cover, 24 ... Plate, 25 ... Motor, 26 ... Output shaft,
27 ... Gear, 28 ... Plate, 29 ... Shaft, 30 ... Long hole,
31 ... Pin, 32 ... Plate 100 ... Control means, 10
1 ... Detection means, 102 ... Manual switch

Continuation of front page (72) Inventor Toshihiko Okada No.1 Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture

Claims (1)

[Claims] 1. A dustproof cover 1 for covering a front surface of a radiator 5.
A dust-proof fan 8 that removes dust adhering to the dust-proof cover 10 toward the outside is provided on the inner side of 0. Between the dust-proof fan 8 and the radiator 5, the wind blown by the dust-proof fan 8 is dust-proof. In the working vehicle provided with the blocking means 9 for substantially blocking the movement of the cooling air in the radiator 5 direction by the radiator fan 6 in relation to being sent in the direction of the cover 10, the blocking means 9 is the cooling air in the radiator 5 direction. Is provided with control means 100 for controlling the wind blown by the dustproof fan 8 to be directed to the radiator 5 when the movement of the dustproof fan is not blocked.