JPH09287453A - Radiator dustproof equipment for work vehicles - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To provide a dustproof fan for removing dust of a dustproof cover covering a front surface of a radiator. When cooling air from the radiator fan moves to a radiator or an engine, the dustproof fan is used. Wind is also sent to the radiator and engine to improve cooling efficiency. SOLUTION: When the opening / closing means 5 does not block the movement of the cooling air toward the radiator 1, the dust-proof fan 3 is used in association with the pressure detection of the pressure sensor 6a in the variable hydraulic pump 6b of the hydraulic continuously variable transmission 6. A radiator dustproof device for a work vehicle is characterized in that a control means 100 for sending the wind to the radiator 1 direction is also provided.

Description

Detailed Description of the Invention

[0001]

The present invention relates to a radiator dustproof device for a working 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 structure described in the claims, when the opening / closing means 5 does not block the movement of the cooling air toward the radiator 1, the variable hydraulic pump 6b of the hydraulic continuously variable transmission 6 is provided. In connection with the pressure detection by the pressure sensor 6a, the radiator dustproof device for a work vehicle is provided with a control means 100 for sending the wind blown by the dustproof fan 3 toward the radiator 1 as well.

[0005]

1 to 5 show a radiator dustproof device for a combine, which is an agricultural work vehicle, in which an embodiment of the present invention is embodied. In front of the machine frame 8 having the traveling device 7, a harvesting device 9 for harvesting and transferring the planted grain culm to the rear, and a grain culm conveyed from the harvesting device 9 to the feed chain 10 further rearward. A supply / conveyance device 11 that conveys toward the side is provided. On the machine frame 2, a threshing device 12 for threshing and selecting the grain culms conveyed from the supply and conveying device 11 while being conveyed by the feed chain 10, and a grain for temporarily storing the grains threshed and selected by the threshing device 12. A tank 13 and an operation unit 14 are placed. Further, the vertical auger 15 and the horizontal auger 1 for discharging the grains temporarily stored in the grain tank 13 are provided.
6 are installed.

An engine 17 for driving the traveling device 7 is mounted on the machine body frame 8. FIG. 1 is a cross-sectional view thereof, and is a front view of the vicinity of the dust cover 2 from the engine 17. The engine 17 is fixed on the machine body frame 8 via a mount rubber 18. The crankshaft 19 projects toward the radiator 1 side, and the belt 2
The shaft 21 is driven from 0 to rotate the radiator fan 4. The radiator 1 is fixed to the machine body frame 8 on the outer side of the radiator fan 4, and the blocking means 5 is installed on the outer side of the radiator 1.

The opening / closing means 5 will be described. A plate 22 is fixed to the outside of the radiator 1 and three holes 22a are formed. Cooling air passes through the holes 22a and cools the radiator 1, the engine 17, and the like. To block the cooling air passing through the holes 22a, the holes 22a
Since it is necessary to close a, the plate 23 is provided on the side of the plate 22 and the plate 23 is slid to close the hole 22a. The state shown in FIGS. 1 and 2 is a configuration in which cooling air passes through the holes 22 a of the plate 22. That is, the sliding plate 23 also has a hole 23a, and the hole 23a and the hole 22a of the plate 22 are aligned with each other. As a result, the cooling air flows through the holes 23a and 22a.
It will pass through.

When the plate 23 is slid downward from such a state, the holeless portion of the plate 23 closes the hole 22a of the plate 22. In this embodiment,
Although the structure is such that each hole 22a is closed over the entire surface, a structure may be used in which only part of the hole 22a is closed. This allows
The cooling efficiency of the radiator 1, the engine 17, etc. does not drop extremely.

A structure in which the plate 23 is slid vertically will be described with reference to FIGS. 2 and 3. The plate 25 is fixed to the engine cover 24 with bolts,
A motor 26 is installed on the plate 25. A gear 27 is fixed to an output shaft 26a of the motor 26, and a plate 28 having a part of a gear meshing with the gear 27 rotates about a shaft 29. The plate 28 has a long hole 30 in which a pin 31 fixed to the plate 22 is engaged. As a result, when the motor 26 rotates forward and backward, the plate 28 rotates about the shaft 29, and the plate 23 slides in the vertical direction via the pin 31.

A dustproof cover 2 is provided further outside the opening / closing means 5, and a dustproof fan 3 is provided inside the dustproof cover 2. Dustproof fan 3
Are fixed to the dust-proof cover 2 via a plate 32 with bolts or the like. In the combine having the above-described configuration, the dustproof fan 3 is reversed to send a wind toward the dustproof cover 2 under a certain condition (for example, every certain time), and the dustproof cover 2 is provided in front of the dustproof cover 2. The adhering dust is blown off to the outside. At this time, in order to improve the dust removal efficiency, the movement of the cooling air toward the radiator 1 is stopped by the opening / closing means 5 as described above. In the normal state where the dust removal operation is not performed, the cooling air passes through the hole 23a of the plate 23 and the hole 22a of the plate 22 and moves toward the radiator 1, but the dustproof fan 3 remains stopped at this time. In that case, the resistance of the cooling air passage is obtained. Therefore, when the plate 23 does not slide and the hole 22a of the plate 22 is not blocked, the dustproof fan 3 is rotated in the normal direction to generate the airflow thereof.
It is configured to send in the direction.

As described above, the condition that the dustproof fan 3 is normally rotated and the wind is sent toward the radiator 1 is related to the driving of the hydraulic continuously variable transmission 6 that drives the combine traveling device 7. To do. In the present embodiment, as shown in FIG. 6, the dustproof fan 3 is normally rotated in association with the pressure detection of the pressure sensor 6a provided in the variable hydraulic pump 6b of the hydraulic continuously variable transmission 6. . Since the hydraulic continuously variable transmission 6 is always driven when the engine 17 is started, it is appropriate as a condition for normally rotating the dustproof fan 3. Further, even when the variable hydraulic pump 6b is not tilted and the constant amount hydraulic motor 6d does not rotate, that is, in a neutral state (the combine does not run), the dustproof fan 3 is driven, so that the work is temporarily suspended. However, the cooling efficiency does not decrease.

As another method, the rotation of the engine 17 may be directly detected. However, even if the engine 17 is rotating, if the hydraulic continuously variable transmission 6 is out of order, the combine cannot travel, so the traveling is impossible. Even if the dust-proof fan 3 of such a combine is driven, power is wasted. Further, as another condition for normally rotating the dustproof fan 3, rotation of the input shaft 6c of the variable hydraulic pump 6b of the hydraulic continuously variable transmission 6 may be detected.

This electrical configuration is shown in FIG. The pressure sensor 6a for detecting the pressure in the circuit of the hydraulic continuously variable transmission 6 is connected to the input side of the control means 100, and the drive motor of the dustproof fan 3 is connected to the output side thereof.
With the configuration described above, even when the dustproof fan 3 does not rotate in the reverse direction, the dustproof fan 3 normally rotates to send the cooling air in the direction of the radiator 1, and the radiator 1 and the engine 17 have a synergistic effect with the cooling air by the radiator fan 4. The cooling efficiency of is improved.

Next, the conditions for driving the dustproof fan 3 in the reverse direction will be described. The combine harvester does not mow the planted culms and does not generate much dust during normal traveling, but when the harvesting work is performed, much dust occurs. Therefore, a grain culm sensor 33 for detecting the presence or absence of grain culm is provided in the transport route of the grain culms of the combine, and the dust-proof fan 3 is reversely driven only when the grain culm sensor 33 detects the conveyed grain culm. To do so. FIG. 8 shows this electrical configuration. The grain stem sensor 33 is connected to the input side of the control means 100, and the drive motor of the dustproof fan 3 is connected to the output side thereof.

As a result, the dustproof fan 3 is provided only during the mowing work.
Is reversed, there is no need to perform unnecessary control.
In the above-described embodiment, the grain culm sensor 33 is used to detect the presence or absence of the conveyed grain culm, but the reaping drive system, that is, the arbitrary position of the portion where the reaper 9 is driven (raising case, cutting blade drive). Section, stock carrier device, etc.) is provided with a rotation sensor 36, and the dustproof fan 3 is driven (forward rotation and reverse rotation) when the rotation sensor 36 detects rotation (during reaping work). You may

Next, the dustproof fan 3 is driven (normal rotation and reverse rotation).
Another embodiment will be described. Even if the engine 17 of the combine is rotating, when the combine is stopped, the engine 17 is in the idling state, so the heat generation amount is not so large, and therefore the dustproof fan 3 does not have to be normally rotated as described above. Also, since the mowing operation is not in progress, no dust is generated and it is not necessary to reverse the operation.

Therefore, the dustproof fan 3 is configured to be driven (forward rotation and reverse rotation) only when the combine is running. As a means for detecting the traveling state, for example, a vehicle speed sensor 35 is provided in the transmission case 34, and when the vehicle speed sensor 35 detects the traveling state, the dustproof fan 3
To drive. This electrical configuration is shown in FIG.

The vehicle speed sensor 3 is provided on the input side of the control means 100.
5 is connected, and the dustproof fan 3 is connected to the output side thereof. With the configuration as described above, the dustproof fan 3 is not driven (normal rotation and reverse rotation) when the combine engine 17 is in the idling state and the vehicle is stopped, so that unnecessary power is not used and the battery is burdened. It will not take. Therefore, the battery life is extended.

Next, FIGS. 10 and 11 will be described.
A grain sensor 37 for detecting how many grains are present in the grain tank 13 is provided in the grain tank 13 for temporarily storing the grains that have been threshed and selected by the combine. In this embodiment, the grain sensor 37a is installed near 2/3 of the total storage amount, and the grain sensor 37b is also installed near the full storage amount.
Is installed. When these two sensors detect a grain, it is necessary to inform the operator. Therefore, the grain discharge lateral auger 38 for discharging the grain in the grain tank 13 is provided with a lamp 39 so that the grain 39 is turned on and blinked to inform the user. That is, when the grain sensor 37a detects a grain, the lamp 39 is turned on, and when the grain sensor 37b detects a grain, the lamp 39 is made to blink.

As described above, when the grain sensor 37b detects a grain and the grain in the grain tank 13 becomes almost full, the lamp 39 blinks, but at the same time, the grain discharge lateral auger. 38 is raised by a constant angle A. As a result, the worker around the combine can more reliably recognize that the grain in the grain tank 13 is almost full.

The fixed angle A can be set as desired by the operator by making it variable with a dial provided on the operation unit 14. Further, the blinking interval of the lamp 39 may be changed as the constant angle A is changed. This allows more reliable confirmation. Further, the constant angle A may be automatically changed. For example, an ultrasonic sensor is provided in the combine to detect surrounding obstacles (banks, high ridges, etc.), and if there are obstacles in the vicinity, increase the constant angle A,
The rising amount of the grain discharge lateral auger 38 is increased. This makes it easy for the surrounding workers, which are on the opposite side of the combine with respect to the bank and the high ridges, to confirm that the grain tank 13 is filled with grains.

The lamp 39 corresponds to the grain discharge lateral auger 3
8 and the front of the Glen tank 13 and the rear of the operation unit 14. Since this position is a position that can be seen well by an assistant other than the driver who is driving the combine, the lamp 39 can be surely confirmed at any position of the assistant. Further, since the driver driving the combine does not directly enter the field of view, the light of the lamp 39 does not obstruct the field of view. This is particularly convenient for nighttime work.

Next, FIGS. 12 and 13 will be described.
The lamp 39 is configured to be movable along the longitudinal direction of the grain discharge lateral auger 38. A guide guide 38a is provided on the grain discharge lateral auger 38, and a lamp 39 is configured to move along the guide guide 38a. As a result, the lamp 39 is placed at the position desired by the combine driver or assistant.
Can be installed. As described above, when the driver is in the field of view, the light of the lamp 39 may obstruct the driver's field of view. However, the driver in the field of view can check the state of the Glen tank. In some cases.

Next, FIG. 14 will be described. FIG.
FIG. 9 is a block diagram of an electrical configuration regarding conditions for lighting and blinking the lamp 39. On the input side of the control means 200, a threshing clutch lever ON / OFF switch 40a for detecting ON / OFF of the threshing clutch lever 40, and a grain for detecting ON / OFF of a grain discharge lever 41 for discharging the grain in the Glen tank 13 Discharge lever on / off switch 41a, grain sensor 37a,
37b is connected. A lamp 39 is connected to its output side.

As a condition for lighting and blinking the lamp 39, the threshing clutch lever on / off switch 40a is turned on, or the grain discharge lever on / off switch 41a is turned on, and the grain sensor 37a or the grain sensor is turned on. When the grain sensors 37a and 37b are both in the on state, the lamp 39 is turned on and blinks. With such a configuration, the lamp 39 reliably lights up and blinks when the threshing clutch lever 40 is engaged, that is, during work, so that the state of the grain in the grain tank 13 can be surely grasped. Since the lamp 39 does not light up and blinks except during work, careless power consumption can be suppressed.

Further, when the grain discharge lever 41 is turned on, that is, when the grain in the grain tank 13 is being discharged, the lamp 39 surely lights up and blinks, so that the grain in the grain tank 13 is turned on and off. We can grasp the state of quantity. Glen Tank 13
When the amount of grains inside is full, the grain sensors 37a, 37b
Both detect the grain and the lamp 39 blinks as described above. When this is full, the lamp 39 may be turned on, but if it is turned on during bright daytime, it may not be known whether it is on or off. Therefore, it is easier to recognize by blinking.

Next, when the grain discharging lever 41 is turned on from the full state and the grain discharging in the grain tank 13 is started, the grain gradually decreases, the grain sensor 37b is cut off, and only the grain sensor 37a is cut off. It enters the ON state. Then
The lamp 39 is turned on to inform the driver or assistant of such a state. When only the grain sensor 37a is turned on, the amount of grains in the grain tank 13 is approximately 2/3, so this state can be grasped. Therefore, it is possible to judge how many more rice bags are needed.

Next, FIGS. 15 and 16 will be described.
Two lamps that are turned on according to the amount of grain as described above are provided. That is, the lamps 39 and 39a. When the grain amount is about 2/3, either one of the lamps 39 and 39a is turned on, and when it is full, both are turned on. As a result, the lamps 39, 39 are
Since a is lit, it is easy to recognize the grain amount.

Next, FIG. 17 will be described. Three grain sensors 42, 42a, 42b are provided in the Glen tank 13 and corresponding lamps 43, 43a, 43b are provided.
Is installed. The lamp 43 is turned on when the grain sensor 42 is stored, the lamp 43a is turned on when the grain sensor 42a is stored, and the lamp 43b is turned on when the grain sensor 43b is stored. As a result, it is possible to accurately grasp the amount of grains in the Glen tank 13. If a plurality of the grain sensors and the lamps are provided and the number of them is increased, it is possible to grasp more accurately.

[0030]

As described above, according to the present invention, even when the dustproof fan 3 does not rotate in the reverse direction, the dustproof fan 3 rotates in the normal direction to send the cooling air toward the radiator 1.
Does not become a resistance, and the synergistic effect with the cooling air from the radiator fan 4 improves the cooling efficiency of the radiator 1 and the engine.

[Brief description of drawings]

FIG. 1 is a sectional view

[Figure 2] Side view

FIG. 3 is a perspective view

FIG. 4 is a right side view of the combine.

FIG. 5 is a left side view of the combine.

FIG. 6 is a hydraulic circuit diagram

FIG. 7 is a block diagram.

FIG. 8 is a block diagram.

FIG. 9 is a block diagram.

FIG. 10 is a right side view of the combine.

FIG. 11 is a plan view of the combine.

FIG. 12 is a right side view of the combine.

FIG. 13 is a plan view of the combine.

FIG. 14 is a block diagram.

FIG. 15 is a right side view of the combine.

FIG. 16 is a plan view of the combine.

FIG. 17 is a right side view of the combine.

[Explanation of symbols]

A ... Constant angle, 1 ... Radiator, 2 ... Dustproof cover, 3 ...
Dust-proof fan, 4 ... Radiator fan, 5 ... Opening / closing means, 6
... hydraulic continuously variable transmission, 6a ... pressure sensor, 6b ... variable hydraulic pump, 6c ... input shaft, 6d ... constant hydraulic motor, 7 ...
Traveling device, 8 ... Machine frame, 9 ... Mowing device, 10 ... Feed chain, 11 ... Feeding / transporting device, 12 ... Threshing device,
13 ... Glen tank, 14 ... Operating part, 15 ... Vertical auger,
16 ... Side auger, 17 ... Engine, 18 ... Mount rubber, 19 ... Crank shaft, 20 ... Belt, 21 ...
Shaft, 22 ... Plate, 22a ... Hole, 23 ... Plate, 2
4 ... Engine cover, 25 ... Plate, 26 ... Motor,
26a ... Output shaft, 27 ... Gear, 28 ... Plate, 29 ...
Shaft, 30 ... Long hole, 31 ... Pin, 32 ... Plate, 33 ...
Grain culm sensor, 34 ... Transmission case, 35 ...
Vehicle speed sensor, 36 ... Rotation sensor, 37 ... Grain sensor, 3
7a ... Grain sensor, 37b ... Grain sensor, 38 ... Grain discharge lateral auger, 38a ... Guide guide, 39 ... Lamp, 39
a ... lamp, 40 ... threshing clutch lever, 40a ... threshing clutch lever ON / OFF switch, 41 ... grain discharge lever,
41a ... Grain discharge lever on / off switch, 42 ... Grain sensor, 42a ... Grain sensor, 42b ... Grain sensor, 43 ...
Lamp, 43a ... Lamp, 43b ... Lamp, 100 ... Control means (CPU), 200 ... Control means (CPU).

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mitsuji Hirota 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture Izeki Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] 1. A dustproof cover 2 for covering a front surface of a radiator 1.
A dustproof fan 3 for removing dust adhering to the dustproof cover 2 toward the outside is provided on the inner side of the dustproof fan 3.
Between the radiator 1 and the radiator 1, there is provided an opening / closing means 5 which substantially blocks the movement of the cooling air toward the radiator 1 by the radiator fan 4 in relation to the wind generated by the dustproof fan 3 being sent outward. In the work vehicle, when the opening / closing means 5 does not block the movement of the cooling air toward the radiator 1, the dustproof fan 3 is connected with the pressure detection of the pressure sensor 6a in the variable hydraulic pump 6b of the hydraulic continuously variable transmission 6. A radiator dustproof device for a work vehicle, which is provided with a control means 100 for sending the wind generated by the vehicle to the radiator 1 direction.