JPH09163850A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine harvester aiming at the improvement of the adaptability to wet materials by effectively introducing an exhaust wind for cooling an engine to the inside of a threshing part without using any forcible introduction means. SOLUTION: This combine harvester arranged with an engine at one of the front and lateral side of a threshing part, is provided by installing a wind guiding passage (52) intruding an exhaust wind for cooling the engine to the sucking port of a winnow (51) positioned on the downstream side of the exhaust wind for cooling the engine and in the rear direction from the front and lateral side of the threshing part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is an engine in which a mowing section and a threshing section are arranged in series in the direction of travel of the machine body, and a driver's seat is provided above the threshing section on one side of the mowing section. Concerning the self-removing combine that was deployed.

[0002]

2. Description of the Related Art Conventionally, a fan for forcibly introducing cooling exhaust air of an engine flowing from the right side to the left side of a machine on the front side of a threshing section to the inside of the threshing section is provided at the center position on the lower front of the threshing section. Techniques for improving the wettability of some parts are already known. (Actual development number 63-148144)

[0003]

In the above prior art, since the cooling exhaust air intake port of the threshing section is opened on a plane parallel to the wind direction, a forced introduction means such as a fan is required.
Although the cost is high and the installation is not easy (the installation space cannot be secured depending on the type), there is a problem that the cooling exhaust air introduction efficiency is low.

Therefore, an object of the present invention is to efficiently introduce cooling exhaust air into the threshing section with a simple structure.

[0005]

In order to achieve the above object, the cooling exhaust air can be taken into the threshing section on the downstream side and from the plane perpendicular to the wind direction. A guide air duct for introducing the cooling exhaust air was provided at the Karatake inlet on the downstream side of the cooling exhaust air and behind the one side of the threshing section.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a perspective view of a guide air passage, FIG. 2 is an overall side view of a self-removing combine, and FIG. 3 is a plan view thereof, where (1) is a track frame on which a traveling crawler (2) is mounted, 3) is a machine frame installed on the track frame (1), (4) is mounted on the left side of the machine frame (3), and the feed chain (5) is stretched on the left side and the handling cylinder (6) and processing A threshing section containing a body (7), (8) is a cutting section arranged in front of the threshing section (4) and provided with a cutting blade (9), a grain culm transport mechanism (10) and the like, (11). Is disposed behind the threshing unit (4) and faces the end of the straw chain (12), the straw processing unit, (13) is the right side of the reaping unit (8), the front right side of the threshing unit (4) Deployed in the driver's seat (1
4) and a driver's cab including a driving operation unit (15), (16)
Is an engine disposed substantially below the driver's seat (14);
(17) is a grain tank which is provided on the right side of the threshing unit (4), and which feeds grains from the threshing unit (4) through a fried cylinder (18), and (19) is a grain tank (17 ) Is a grain discharge conveyer that takes out the grains in the outside, and is configured to continuously perform cutting and threshing work.

FIG. 4 is a sectional side view of the threshing section (4),
In the figure, (20) is a handling room in which an axial-flow type handling barrel (6) which is mounted in the longitudinal direction of the machine body is installed, and (21) is the handling room (20).
A handle for inserting a grain culm into the container, (22) a crimp net stretched over the lower part of the handler chamber (20), and (23) a swing selection for swingably supporting in the front-rear direction via swing links or the like. A feed pan (24) located below the crimp net (22), and a chaff sheave (26) located below the rear part of the crimp net (22) and the dust outlet (25) / processing cylinder (7). The swing sieve disc (23) is composed of a Glensieve (27) disposed substantially below the middle of the chaff sheave (26) and a Straw rack (28) connected to the rear portion of the chaff sheave (26). .

Further, reference numeral (29) in the figure denotes the sorting board (2).
Kara-mino that feeds the sorting wind in the 3) direction, (30) is the first gutter having the first conveyor (31) that communicates with the fried cylinder (18) and takes out the grains to the grain tank (17), ( 32) is 2
The second gutter having the second conveyor (34) for returning the food to the front part of the rocking sorting board (23) through the second returning conveyor (not shown) is a rear gutter (35) at the rear of the handling cylinder (6). An intake / exhaust dust fan arranged below the No. 4 gutter (36) with the suction port (35a) facing substantially above the feed end of the chaff sheave (26), and (37) the feed of the rocking sorting board (23). It is the third mouth that faces the end, and the handling cylinder (6) and the processing cylinder (7)
The grains that have been threshed by are sorted by the rocking sorter (23), and only the sized grains are taken out to the grain tank (17), and the straw is discharged through the straw chain (12). It is configured to be discharged to the outside of the machine after being cut by the cutting cutter (38).

As shown in FIGS. 5 and 6, the right side portion of the engine (16) projects into the inside of an engine cover (39) which constitutes the rear portion of the driver's cab (13) on which the driver seat (14) is mounted. In this state, the machine is mounted horizontally on the machine base (3) on the right front side of the threshing unit (4), and the right side of the engine cover (39) and the engine (1
A radiator (40) and a radiator fan (41) are provided between the engine (16) and a radiator type engine (16) in which cooling water is sent to the radiator (40) by a pump (not shown) to be circulated and is blown and cooled by the fan (41). ) Is configured to perform cooling.

Further, a threshing drive shaft (42) is horizontally installed in front of a lower portion of the threshing section (4) through a drive case (not shown). The output shaft (43) on the right side of the engine (16).
The belt transmission mechanism (44) further transmits power to the threshing drive shaft (42), and the sorting drive pulley (45) provided on the left end of the threshing drive shaft (42) causes the Kara (() 29) 1st conveyor (31), 2nd conveyor (3
4), power is transmitted to the dust suction / exhaust fan (35) and the cutting cutter (38) by the belt transmission mechanism (46) as shown in FIG. 4, while the threshing portion is provided to the handling cylinder (6) and the processing cylinder (7). A drive shaft (47) for transmitting power via a belt transmission mechanism on the front side of (4) is branched from the center of the threshing drive shaft (42) to drive each part of the threshing unit (4). .

As shown in FIGS. 1 and 4 to 6, the belt cover (48) of the belt transmission mechanism (46) on the left side of the threshing section (4) is detachably attached to the outside of the left side wall (4a) of the threshing machine frame. The belt cover (48) is attached to the front side of the front wall (4c) of the thresher frame, and the engine (1
An extension (48a) orthogonal to the wind direction is formed on the downstream side of the cooling exhaust air in (6), and the left side wall (4) of the threshing machine frame is formed.
a) A dustproof cover (49) made of an eye plate iron plate is integrally extended in parallel from the lower part of the front side to the back side of the extending portion (48a), and is formed by a large number of small holes (50a) of the dustproof cover (49). The cooling exhaust air introduced into the inside through the cooling exhaust air intake (50) is opened on the left side wall (4a) of the thresher frame on the same plane as the rear side of the dust cover (49) behind the dust hood (2).
Guide air passage (52) introduced to the left inlet (51) of 9)
Is formed by the belt cover (48) and the dustproof cover (49).

Further, the dust-proof cover (49) is provided with a threshing drive shaft (42) and the left end of the case thereof as a guide air passage (5).
2) A through hole (53) for thrusting the inside of the guide air passage (52) to pivotally support the sorting drive pulley (45).
And a top cover part (54) and a front cover part (55) for covering the upper surface and the front surface of the guide air passage (52) and preventing the ingress of straw dust and the like into the guide air passage (52). There is.

This embodiment is configured as described above.
The cooling exhaust air of the engine (16) is in front of the threshing section (4),
Moreover, the cooling exhaust air intake port provided on the surface orthogonal to the wind direction (a) at a position where it flows from the right side of the machine body to the left side below the handle (21) and passes in front of the threshing section (4). (5
0) flows into the guide air passage (52). The cooling exhaust air that has flowed into the guide air passage (52) is guided by the guide air passage (52).
It is sent to the rear along with and is sucked and introduced into the threshing machine frame from the left inlet (51) by the intake action of the Karato (29).
Since the cooling exhaust air of the engine (16) is hot air that has passed through the radiator (40) and the engine (16), this cooling exhaust air is introduced into the threshing unit (4) and passes therethrough to thresh. Each member inside the part (4) and the shattered material and straw waste are dried, and the adaptability of the wet material is improved.

Since the cooling exhaust air intake port (50) of the guide air passage (52) is opened downstream of the cooling exhaust air in a plane orthogonal to the wind direction (a), the cooling exhaust air is discharged. It can be efficiently introduced naturally into the threshing unit (4) without using a forced introduction means such as a fan. Further, since the cooling exhaust air passes in front of the threshing unit (4) and below the handling opening (21), mixing of straw waste can be seen, but the surface on which the cooling exhaust air intake opening (50) is provided has an eye plate iron plate. Since it is formed of a dust cover (49) made of aluminum and a large number of small holes (50a) of the dust cover (49) form the cooling exhaust air intake port (50), the guide air passage (52) has Only the cooling exhaust air from which the straw waste has been removed flows in, and it is possible to prevent the introduction of the straw waste into the threshing unit (4) together with the cooling exhaust air, and the sorting performance is not deteriorated. When the straw dust falling from the cut culm passing through the upper part of the guide air passage (52) is mixed, the top cover part (54) and the front cover part (5) of the dust cover (49) are mixed.
It can be prevented by 5).

Further, since the suction port (51) of the Karato (49) is connected to the downstream of the cooling exhaust air of the engine (16), the efficiency of introducing the cooling exhaust air into the threshing section (4) is improved. At the same time, the cooling exhaust air will positively flow to the downstream side, and convection will not occur inside the engine cover (39). Therefore, it is possible to prevent the ambient temperature around the driver's seat (14) from rising and it is comfortable. Can provide a working environment.

As shown in FIG. 1, the Karato suction port is also opened on the right side wall (4b) of the thresher frame, and the branch valve (5
6) and the cover (57), part of the engine cooling exhaust air before passing through the front of the threshing unit (4)
It can also be introduced into the threshing part (4) from the right suction port (58).

[0017]

As is apparent from the above embodiments, the present invention is a combiner in which an engine (16) is arranged on one side in front of the threshing section (4), and is provided downstream of the cooling exhaust air of the engine (16). Guide air passage (5) for introducing cooling exhaust air to the Kara-mino inlet (51) on the rear side from the front on one side of the threshing section (4)
2) is provided, and the cooling exhaust air is efficiently removed without providing the conventional forced introduction means, and the threshing unit (4) is provided.
It is possible to further improve the wettable material adaptability of the threshing unit (4).

Further, a belt cover (48) for selecting and driving, which is provided on the outer side of the threshing portion on the side opposite to the engine (16), is extended forward of the threshing machine frame, and an extending portion (48a) of the belt cover (48) is provided. ) A dustproof cover (49) having a large number of small holes (50a) forming a cooling exhaust air intake (50) on the back side of
The belt cover (48) and the dustproof cover (4
By forming the guide air passage (52) with 9), the guide air passage (52) can be easily configured, and it is possible to prevent the introduction of straw waste into the threshing portion (4) together with the cooling exhaust air, In addition, the guide air passage (52) can be formed by effectively utilizing the surplus space, and the guide air passage (52) can be easily formed on any model without changing the existing structure.

[Brief description of the drawings]

FIG. 1 is a perspective view of a guide air passage.

FIG. 2 is an overall side view of a self-removing combine.

FIG. 3 is an overall plan view of a self-removing combine.

FIG. 4 is a sectional side view of a threshing unit.

FIG. 5 is a front view of a threshing unit.

FIG. 6 is a plan view of a threshing unit.

[Explanation of symbols]

 (4) Threshing part (16) Engine (51) Karatake suction port (52) Guide air passage

Claims (2)

[Claims] 1. In a combine in which an engine is arranged on one side in front of the threshing section, cooling exhaust air is introduced into a Karatake intake port on the downstream side of the cooling exhaust air of the engine and behind one side of the threshing section. A combine with a guide air passage. 2. A belt cover for sorting and driving, which is provided on the outer side of the threshing section on the side opposite to the engine, extends forward of the threshing machine frame, and a cooling exhaust air intake port is formed on the back side of the extending section of the belt cover. A dustproof cover with a large number of small holes
The combine harvester according to claim 1, wherein the guide air passage is formed by the belt cover and the dustproof cover.