JPH0444033Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention is a combine harvester, specifically, a combine harvester, in which a reaping device is placed at the front, a threshing device is placed at the rear, and a grain tank is placed on the side of the threshing device. , relates to a combine harvester in which a prime mover and a radiator are arranged on one side of the grain tank in the longitudinal direction.

(Prior Art) Conventionally, this type of combine harvester has a reaping device disposed at the front of a machine body having a traveling device, a threshing device disposed at the rear of the machine body, and a grain harvester disposed on the side of the threshing device. While the tank is disposed, a prime mover is disposed behind the grain tank, and a radiator for cooling the prime mover is disposed outside the prime mover, and a radiator is placed in front of the radiator on an outer plate that covers the prime mover and the radiator. , a cooling air intake port for the radiator is provided, cooling air is taken in from the intake port, and the cooling air is utilized to radiate heat by the radiator.

(Problems to be Solved by the Invention) However, in the above-mentioned conventional device, the cooling air intake is located at the front of the radiator, as described above.
In other words, since the intake port is located at the rear side of the machine, the intake port is located near the discharge section for waste straw and foreign matter provided at the rear of the machine, and therefore, the waste straw and foreign matter are discharged from the discharge section to the outside. The problem was that the dust that was scattered by the engine entered through the intake port, and the dust clogged the radiator, impairing air circulation and reducing the heat dissipation effect, reducing the output of the prime mover and reducing work efficiency. .

The purpose of this invention is to reduce the amount of dust emitted from the exhaust section at the rear of the threshing device together with straw, and the dust generated when harvesting grain culms with the reaping device, from entering through the cooling air intake of the radiator, thereby preventing clogging in the radiator. In addition, by using the outer surface of the grain tank, it is possible to easily form an air passage with a large cross-sectional area that can take in sufficient cooling air without using a special duct. It is in the point of achieving.

(Means for Solving the Problems) The present invention provides a reaping device 5 at the front and a threshing device 3 at the rear, and a grain tank 7 at the side of the threshing device 3. A prime mover 10 is disposed on the rear side of the tank 7 in the longitudinal direction, and a radiator 11 is disposed on the outside of the prime mover 10.
box-shaped covers 15, 17 extending from the back wall side of the outer panel 1a to the front of the grain tank 7, outside the grain tank 7; is attached to form an air passage 14 between the inner surfaces of the covers 15 and 17 and the outer surface of the grain tank 7, which communicates with the suction side of the radiator 11 that opens toward the outside of the outer plate 1a. , a cooling air intake port 13 is located at a position separated from the front of the intake side of the radiator 11 in the covers 15 and 17.
It is characterized by having the following.

(Function) With the above configuration, the cooling air intake port 13 is connected to the radiator 1 in the box-shaped covers 15 and 17.
Since the radiator 1 is disposed at a position away from the suction side of the radiator 1, dust emitted from the discharge section at the rear of the threshing device 3 together with straw and dust generated when harvesting grain culms by the reaping device 5 can be prevented from entering the radiator 1.
The radiator 11 can be introduced into the suction side of the radiator 11 to prevent clogging of the radiator 11.

Further, the air passage is formed by using the outer surface of the grain tank 7 as a constituent member, and from the rear wall side of the outer plate 1a that covers the outer surface of the grain tank 7 and the radiator 11 to the front of the grain tank 7. Since it is formed in combination with the extending box-shaped covers 15 and 17, the outer surface of the grain tank 7 can be used effectively, and the air passage 14 with a large cross-sectional area can be formed without using a special duct member. This is possible. As a result, the air passage 14
It is possible to take in a sufficient amount of cooling air for heat dissipation by the radiator 11 without giving a large flow resistance to the cooling air passing through the grain tank 7. Outer surface and box cover 15, 17
Since it can be used for both purposes, the number of parts can be reduced and the configuration can be made at low cost.In addition, since the dedicated duct does not partially protrude from the outer surface of the grain tank 7, this duct does not get in the way and restrict the design. Since there are no holes, the appearance can be improved, and furthermore, the inside of the air passage 14 can be easily cleaned by simply removing the box-shaped covers 15, 17.

(Example) The one shown in FIGS. 1 to 4 is a general-purpose combine harvester, in which a machine body 1 that is driven by a crawler 2 is equipped with a threshing device 3 having a screw-shaped handling barrel 3a and a swing sorting machine. A reaping device 4 is provided in front of the machine body 1, and a reaping device 5 is supported so as to be movable up and down via a hydraulic lifting device 6, while grains threshed by the threshing device 3 are placed on the side of the threshing device 3. A grain tank 7 for storage is provided, a driver's seat 8 and a driving operation section 9 are provided in front of the grain tank 7, a prime mover 10 is provided behind the tank 7, and a radiator is provided outside the prime mover 10. A fan 11a, a radiator 11, and an oil cooler 12 used for lubrication are arranged and covered with an outer plate 1a, and the outside of the radiator 11 is opened. Further, numeral 31 in the figure is a discharge section provided at the rear of the threshing device 3.

The reaping device 5 is connected to a grain header 51 that receives uncut grain culms, a reciprocating cutting blade 52 installed between the headers 51, a grain culm raking drum 53, and the header 51, and the cutting blades 52 a conveyor 5 that conveys the harvested grain culm to the threshing device 3;
5 and a grain culm raking reel 56 supported by the header 51.

Therefore, in the combine constructed as described above, the outer plate 1a is provided on the outside of the grain tank 7.
Attach box-shaped covers 15, 17 extending from the back wall side of the grain tank 7 to the front of the grain tank 7.
An air passage 14 is formed between the inner surface of the grain tank 17 and the outer surface of the grain tank 7 and communicates with the suction side of the radiator 11 that opens outward of the outer plate 1a. The cooling air intake port 13 is provided at a position spaced forward from the intake side of the radiator 11.

Specifically, a box-shaped first cover 15 having a cross-sectional shape that covers the grain tank 7 is provided on the outside of the upper side of the grain tank 7, and is openable and closable via hinges 16, 16. 1. Cooling air intake ports 13, 13, 13 for the radiator 11 are formed on the side wall, front wall, and upper wall of the cover 15, while the intake side of the radiator 11, that is, the oil cooler 12 is formed on the back wall of the outer panel 1a. A box-shaped second cover 17 having a cross-sectional shape that covers the front side is provided so as to be openable and closable via hinges 18, 18, and the second
As shown in the figure, when the first cover 15 and the second cover 17 are closed, the front part of the second cover 17 and the rear part of the first cover 15 are formed so as to communicate with each other. The intake ports 13 and 1 are formed by the inner wall surface of the grain tank 7 and the outer surface of the grain tank 7.
An air passage 14 is formed from 3 and 13 to the suction side of the radiator 11.

A dustproof body 19 made of punched metal or wire mesh is replaceably attached to the intake ports 13, 13, 13, and an air filter 20 is attached inside the second cover 17.

In the figure, reference numeral 21 denotes an air cleaner for the prime mover 10, and a suction port 21a of the air cleaner 21 faces the back side of the air filter 20.

Note that the first cover 15 and the second cover 17 may be formed integrally, but in the above embodiment, the first cover 15 and the second cover 17 are used to connect the upper part of the grain tank 7 and the radiator 11. The front part can be opened and closed individually to facilitate maintenance.

The present invention is constructed as described above, in which the machine body 1 is run to harvest grain culms with the reaping device 5, and the harvested grain culms are threshed with the threshing device 3, and the grain culms after the threshing are That is, the waste straw and foreign matter are discharged to the rear of the machine body 1 from the discharge section 31 at the rear of the threshing device 3.

Therefore, when the waste straw and foreign matter are discharged from the discharge section 31 to the rear of the machine body 1 as described above, dust is scattered at the rear of the machine body 1.
The cooling air intake ports 13, 13, 13 are provided at a position separated from the front of the intake side of the radiator 11, that is, in the middle part of the fuselage 1 in the longitudinal direction. More aircraft 1
This prevents dust particles from entering the rear. Dust is also scattered when the grain culms are harvested by the reaping device 5, but in this case as well, the intake ports 13, 13, 13 are located behind the driver's seat 8 and away from the reaping device 5. Dust generated during reaping is transferred to the outside of the tank 7 through the intake port 13,
There will be no entry from 13,13.

Therefore, clogging of the radiator 11 due to the dust can be prevented, and a decrease in the output of the prime mover 10 and a decrease in working capacity due to a decrease in heat radiation of the radiator 11 can be prevented, so that good work can be carried out at all times.

In addition, the cooling air intake port 13 and the radiator 1
The air passage 14 communicating with the suction side of the grain tank 7 uses the outer surface of the grain tank 7 as a constituent member of the air passage, and connects the grain from the outer surface of the grain tank 7 and the back wall side of the outer plate 1a. Since the air passage 14 is formed in combination with the box-shaped covers 15 and 17 extending in front of the tank 7, the outer surface of the grain tank 7 can be used effectively, and the cross-sectional area can be reduced without using a special duct member. large air passage 1
4 can be formed. As a result, the cooling air passing through the air passage 14 is not given a large flow resistance, and the radiator 11
In addition, the outer surface of the grain tank 7 and the box-shaped covers 15 and 17 can be used together, without the need for a dedicated duct, reducing the number of parts. In addition, since the dedicated duct does not partially protrude from the outside of the grain tank 7, the duct does not get in the way and restrict the design, and it also improves the appearance. The box-shaped cover 15,1
The inside of the air passage 14 can be easily cleaned by simply removing 7.

In addition, dustproof bodies 19 such as punched metal or wire mesh are replaceably attached to the intake ports 13, 13, 13, so holes or meshes of appropriate sizes can be formed according to the size of dust and work conditions. You can choose freely.

(Effects of the Invention) As described above, the present invention attaches box-shaped covers 15 and 17 extending from the back wall side of the outer plate 1a to the front of the grain tank 7 to the outside of the grain tank 7, and An air passage 14 communicating with the suction side of the radiator 11 that opens outward of the outer plate 1a is formed between the inner surfaces of the grain tank 15 and 17 and the outer surface of the grain tank 7.
Since the cooling air intake port 13 is provided at a position separated from the front of the intake side of the radiator 11 in 5 and 17, when cooling air is taken in from the cooling air intake port 13, this intake air is supplied to the rear part of the threshing device 3. It is possible to reduce the amount of dust released together with waste straw from the discharge part of the machine and the dust generated when the grain culm is harvested by the reaping device 5 from entering through the intake port 13, and it is possible to prevent clogging of the radiator due to the dust. This prevents a decrease in the output of the prime mover 10 and a decrease in working capacity, allowing good work to be carried out at all times.
The air passage 14 that communicates with the suction side of the radiator 11 has box-shaped covers 15 and 17 extending outward from the side of the grain tank 7 from the back wall side of the outer panel 1a to the front of the grain tank 7. Since it is attached and formed between the inner surfaces of the covers 15 and 17 and the outer surface of the grain tank 7, that is,
The outer surface of the grain tank 7 is used as a constituent member of the air passage, and the outer surface of the grain tank 7 is connected to box-shaped covers 15 and 17 extending from the back wall side of the outer plate 1a to the front of the grain tank 7. Since the air passage 14 is formed by the combination, the outer surface of the grain tank 7 can be effectively used, and the air passage 14 with a large cross-sectional area can be formed without using a special duct member.
can be formed. As a result, a sufficient amount of cooling air can be taken in for heat dissipation by the radiator 11 without giving a large flow resistance to the cooling air passing through the air passage 14, and furthermore, there is no need to use a dedicated duct. Since both the outer surface of the grain tank 7 and the box-shaped covers 15 and 17 can be used together, the number of parts can be reduced and the construction can be made at low cost. Since there is no duct, this duct does not get in the way and restrict the design, and the appearance is good. Moreover, the box-shaped cover 1
The inside of the air passage 14 can be easily cleaned by simply removing 5 and 17.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an embodiment of the combine harvester according to the present invention, Fig. 2 is a plan view of the same, Fig. 3 is a partially cutaway rear view of the rear part of the machine, and Fig. 4 is a part of the front part of the grain tank. It is a front view with some parts omitted. 3... threshing device, 5... reaping device, 7... grain tank, 10... prime mover, 11... radiator, 13... cooling air intake, 14... air passage.

Claims (1)

[Scope of utility model registration request] A reaping device 5 is disposed at the front, a threshing device 3 is disposed at the rear, a grain tank 7 is disposed on the side of the threshing device 3, and a prime mover 10 is disposed behind the grain tank 7 in the longitudinal direction. , a radiator 11 is arranged outside the motor 10 and covered with an outer plate 1a,
In a combine harvester in which the outside of the radiator 11 is opened, box-shaped covers 15 and 17 extending from the back wall side of the outer plate 1a to the front of the grain tank 7 are attached to the outside of the grain tank 7, An air passage 14 is formed between the inner surfaces of the covers 15 and 17 and the outer surface of the grain tank 7, and the air passage 14 communicates with the suction side of the radiator 11, which opens outward of the outer plate 1a. ,17
A combine harvester characterized in that a cooling air intake port 13 is provided at a position spaced forward from the intake side of the radiator 11.