JP2011062121A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To protect a constituent member of a combine harvester, such as a threshing apparatus and a grain-collecting part installed in the vicinity of an exhaust pipe from the heat of a waste gas. <P>SOLUTION: The combine harvester is equipped with a reaping part, a driving part and an engine 18 at the front part of a machine body, and the threshing apparatus 4 and a grain-collecting part 5 arranged in the right and left direction at the rear part of the machine body. The combine harvester is further equipped with the exhaust pipe 32 extended from the engine 18 and laid between the threshing apparatus 4 and the grain-collecting part 5, and a blower 25 for generating the wind passing through a space S between the threshing apparatus 4 and the grain-collecting part 5 from the front part to the rear part of the machine body. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an ordinary and self-removing combine.

  In some types of combine, exhaust gas discharged from an engine is led to the rear part of the machine body through an exhaust pipe piped between a threshing device and a grain recovery unit such as a grain tank and discharged.

JP 2007-247472 A

Very high temperature exhaust gas may be emitted from the exhaust pipes of the combine used in the tropical regions of Asia such as Thailand and India. This is because such a tropical region has a high temperature, generally has a high crop height, and a large load is applied to the engine when the cropping operation of the fallen crop is performed.
As a result, the high-temperature radiant heat derived from the exhaust gas generated from the exhaust pipe is transmitted to a combine threshing device or a grain recovery unit installed near the exhaust pipe, thereby causing adverse effects such as thermal deformation of these. There is a fear.

  Accordingly, an object of the present invention is to protect the components of the combine such as the threshing device and the grain recovery unit installed near the exhaust pipe from the heat of the exhaust pipe.

〔Constitution〕
The first characteristic configuration according to the present invention is:
A cutting part, a driving part, and an engine are provided at the front of the aircraft,
A threshing device and a grain recovery unit arranged side by side in the left-right direction at the rear of the aircraft,
An exhaust pipe extending from the engine and piped between the threshing device and the grain recovery unit;
It exists in the point provided with the air blower which generates the wind which passes through the space between the said threshing apparatus and the said grain collection | recovery part from the front part of a body to a rear part.

[Action and effect]
According to this configuration, heat from the exhaust pipe is exhausted to the rear of the fuselage by the wind sent from the blower, so that components such as the threshing device and the grain recovery unit installed near the exhaust pipe are heated to a high temperature. It ’s hard to be. Further, even if the above-mentioned component member receives a heat from the exhaust pipe and becomes high temperature, it is cooled by the wind sent from the blower, so that thermal deformation or the like is prevented.

〔Constitution〕
The second characteristic configuration according to the present invention is:
It exists in the point provided with the guide plate which guides the wind which generate | occur | produced with the said air blower to the space between the said threshing apparatus and the said grain collection | recovery part.

[Action and effect]
According to this structure, since the wind generated by the blower can be reliably sent to the space between the threshing device and the grain recovery unit by the guide plate, the effect of exhausting the heat of the exhaust pipe to the rear of the fuselage is achieved. While increasing, the effect which cools components, such as a threshing apparatus and a grain collection | recovery part, also becomes high.

〔Constitution〕
The third characteristic configuration according to the present invention is:
The said grain collection part is in the point provided with the heat sink which receives the wind which generate | occur | produced with the said air blower.

[Action and effect]
According to this structure, the effect which cools a grain collection | recovery part improves further by providing a heat sink.

〔Constitution〕
The fourth characteristic configuration according to the present invention is:
The air blower is a radiator fan of the engine.

[Action and effect]
According to this configuration, since an existing radiator fan is used as the blower, the structure is not complicated compared to the case where a separate blower is provided, and the manufacturing cost can be reduced.

1 is an overall left side view of an ordinary combine according to an embodiment. It is a whole top view of the ordinary type combine concerning an embodiment. It is a side view which shows an engine room part and an exhaust pipe part. It is a top view which shows the arrangement | positioning relationship on a body frame. It is a top view which shows the flow of the external air taken in by the radiator fan. It is a longitudinal cross-sectional view which shows the space between a threshing apparatus and a Glen tank. It is a longitudinal cross-sectional view which shows the space between the threshing apparatus which concerns on another embodiment, and a Glen tank. It is a longitudinal cross-sectional view which shows the space between the threshing apparatus which concerns on another embodiment, and a Glen tank.

Embodiment
Embodiments of the present invention will be described below with reference to FIGS.
(Overall structure of the combine)
Based on FIGS. 1-4, the whole structure of the normal combine which applied this invention is demonstrated. 1 is an overall left side view of an ordinary combine, FIG. 2 is an overall plan view of the ordinary combine, FIG. 3 is a side view showing an engine room portion and an exhaust pipe portion, and FIG. 4 is a fuselage frame. It is a top view which shows the upper arrangement | positioning relationship.

  As shown in FIG. 1, the ordinary combine is provided with a machine body frame 1 formed in a frame shape by a square pipe material or the like, and a pair of left and right crawler type traveling devices 2 are provided at the lower part of the machine body frame 1.

  A cutting part 3 is provided in front of the machine body frame 1, and a normal type (whole type) threshing device 4 is mounted on the left rear part of the machine body frame 1, and a threshing device 4 is mounted on the right rear part of the machine body frame 1. The Glen tank 5 (grain recovery part) which stores the supplied grain is mounted.

  An unloader 6 serving as a grain discharging device for discharging the grain from the grain tank 5 to the outside of the machine is equipped at the rear part of the grain tank 5.

  The unloader 6 is connected to the rear end of the bottom screw 5c disposed at the bottom of the Glen tank 5 and is connected to the upper end of the vertical transfer mechanism 6a. The horizontal transport mechanism 6b. The unloader 6 is generally rotatable about a vertical axis P that is a screw axis of the vertical conveyance mechanism 6a by operation of a rotation motor (not shown), and with respect to the vertical conveyance mechanism 6a. The horizontal transport mechanism 6b is configured to be able to move up and down.

  As shown in FIG. 2, the unloader 6 when not in use is diagonally arranged in plan view from the rear part of the Glen tank 5 (the rear right side part of the body frame 1) to the front left side part of the body frame 1. It is being fixed to the cradle 7 so that it may be provided.

  A feeder 8 for conveying the harvested culm is connected to the front part of the threshing device 4, and a cutting part 3 having a cutting width substantially corresponding to the lateral width of the machine body is connected to the front end of the feeder 8.

  The cutting unit 3 is supported by the front part of the body frame 1 through the feeder 8. The mowing unit 3 includes right and left dividers 9a and 9b, a scraping reel 16 that rakes and lifts crops backward, a clipper-type mowing device 12 provided across a pair of right and left weed frames 11, And an auger 13 constructed over a pair of right and left weed frames 11. The crop that has been cut and harvested by the reaping device 12 is laterally fed by the auger 13, sent to the inlet of the feeder 8, and conveyed to the threshing device 4 by the feeder 8.

  As shown in FIG. 1, the feeder 8 includes a scraping conveyor 14 in which a transport bar 14 b is horizontally connected across a left and right chain 14 a that is wound and stretched, and a crop supplied from an auger 13. Is transported along the bottom surface of the feeder 8 and supplied to the threshing device 4.

  As shown in FIG. 3, the threshing device 4 has a handling cylinder 4b pivotally supported horizontally across the front and rear side walls of the handling chamber 4a communicated with the terminal end of the feeder 8, and swings below the handling chamber 4a. A structure in which a sorting unit 4c that performs sorting and wind sorting is provided, and a receiving net (concave) 4d that supplies a processed material to the sorting unit 4c from the handling chamber 4a is disposed along the lower side of the handling cylinder 4b. It has become. The sorting unit 4c is provided with a swing sorting case 4e, a red pepper 4f, a lateral feed screw conveyor 4g for collecting the first item, and the like.

  The cereals harvested by the mowing unit 3 are conveyed to the threshing device 4 by the feeder 8 and threshed in the handling room 4a. The threshed grains are sorted by the sorting unit 4c, and are fed to the glen tank 5 via the transverse feed screw conveyor 4g and the vertical feed screw conveyor (not shown) in the whipping cylinder 4h, and sorted. Insufficient second product is reduced and supplied to the front portion of the swing sorting case 4e via a transverse feed screw conveyor (not shown) and a longitudinal feed screw conveyor (not shown), and again undergoes a sorting process. ing.

  On the other hand, the threshed cereal meal (removal) is transported to the slaughter processing unit 4I (see FIGS. 1 and 2) of the threshing apparatus 4, and is released to the field by being cut and the like.

  As shown in FIG. 1, the grain stored in the Glen tank 5 is carried out to the vertical conveying mechanism 6a by the bottom screw 5c (see FIGS. 5 and 6), and then from the vertical conveying mechanism 6a to the horizontal conveying mechanism. After being transported to 6b, it is laterally transported by the lateral transport mechanism 6b and discharged from the discharge port 6c.

  As shown in FIG. 4, the fuselage frame 1 is mounted in a state where it intersects with a pair of left and right main frames 1a, 1a in the shape of a rectangular pipe that is long in the front-rear direction and crosses the main frames 1a, 1a in the left-right direction. It is formed in a lattice frame shape with a large number of installed horizontal frames 1b and front and rear side frames 1c mounted and installed on the outer side of the machine body of the horizontal frame 1b.

  As shown in FIG. 2, a driving unit 15 having a driving operation unit 15b, a driver's seat 15a, and the like provided with various operation levers is configured in the right front portion of the body frame 1, that is, in front of the Glen tank 5. ing.

  As shown in FIG. 3, an engine room R that houses the engine 18 is formed below the driving unit 15, and a driver seat 15 a is attached and supported on an engine bonnet 19 that forms the engine room R.

As shown in FIG. 4, a battery 20 as a power supply device is mounted on a machine body frame 1 extending in front of the engine room R.
Between the main frames 1a and 1a of the body frame 1, a transmission case 21 having a driving axle (not shown) for transmitting driving force to the left and right crawler type traveling devices 2 is provided. Furthermore, a hydraulic oil tank 22 for supplying hydraulic oil to various hydraulic devices is mounted on the aircraft frame 1 closer to the left side of the aircraft than the mission case 21. A fuel tank 24 is disposed at the left rear end of the machine body frame 1.

(Engine room configuration)
Based on FIG.4 and FIG.5, the structure in the engine room R is demonstrated. FIG. 5 is a plan view showing the flow of outside air taken in by the radiator fan 25 (the arrow in FIG. 5 shows the flow of outside air).
On the right side of the engine 18 in the engine room R, a radiator fan 25 and a radiator 26 are disposed. The radiator fan 25 is attached to and driven by the engine 18, and a radiator 26 is provided on the outside (right side) which is the front surface of the radiator fan 25. The radiator 26 is connected to the engine 18 via a water distribution pipe (not shown), and cools engine cooling water led out from the engine 18 via a water distribution pipe (not shown) by receiving outside air taken in by the radiator fan 25.

  The engine coolant is circulated between the engine 18 and the radiator 26 by a pump or the like (not shown). The right side wall and the front side wall of the engine bonnet 19 are formed by the air guide duct 27. The air guide duct 27 is formed in a hollow shape, and an outside air inlet 28 is formed on the outer side surface (right side surface) and the front side surface of the dust guide net 28a. With this configuration, the outside air taken in through the air duct 27 by the suction action of the radiator fan 25 is supplied as cooling air to the radiator 26 in the engine room R.

(Exhaust pipe configuration)
Based on FIGS. 3-6, the structure of the exhaust pipe 32 is demonstrated. FIG. 6 is a longitudinal sectional view showing a space S between the threshing device 4 and the Glen tank 5.
As shown in FIGS. 4 and 5, in the engine 18, an exhaust manifold 29 attached to a cylinder block or the like has a front side of the engine 18 as a discharge side, and one end of an engine muffler 30 communicates with the discharge side of the exhaust manifold 29. Connected.
As shown in FIG. 3, an exhaust discharge pipe 31 extends downward at the rear end of the engine muffler 30.
The exhaust pipe 32 is extended to the rear of the machine body so as to be substantially L-shaped with the connection part to the exhaust discharge pipe 31 as an upper end, and the exhaust pipe 32 and the lateral frame 1b of the lateral frame 1b of the machine body frame 1 are extended. The brackets 33 provided on each are supported and fixed by fastening with bolts (not shown).

  As shown in FIGS. 4 to 6, the exhaust pipe 32 is piped between the threshing device 4 and the glen tank 5 in a plan view. As shown in FIG. 6, the left inclined surface 5a and the right inclined surface 5b at the bottom of the Glen tank 5 are not equal in size to the left and right, and the left inclined surface 5a is set larger than the right inclined surface 5b. The screw 5 c is provided at a position closer to the right side than the center in the left-right direction of the Glen tank 5.

(Flow of outside air taken in by radiator fan and its action)
As shown in FIG. 5, the rear side of the engine 18 on the rear side wall of the engine bonnet 19 is open, and a first guide plate 34a and a second guide plate 34b are provided on the left and right sides of the periphery of the opening 19a. It has been. The first guide plate 34 a extends in the front-rear direction of the machine body and is provided between the threshing device 4 and the exhaust pipe 32. The second guide plate 34b includes an inclined guide surface 34b ′ inclined inward of the opening 19a, and a front-rear direction guide surface 34b ″ continuously provided so as to extend from the inclined guide surface 34b ′ in the front-rear direction of the aircraft. Is provided.

The outside air taken into the engine room R by the radiator fan 25 is supplied to the radiator 26 as cooling air, then exits the opening 19a of the engine bonnet 19 and is threshed by the first guide plate 34a and the second guide plate 34b. 4 is guided to the space S between the grain tank 5 and the front part of the fuselage so as to be pulled out from the rear part.
That is, the radiator fan 25 not only supplies cooling air to the radiator 26 but also functions as a blower that generates air that passes through the space S between the threshing device 4 and the glen tank 5 from the front to the rear of the machine body. To do.

  According to this configuration, the heat of the exhaust pipe 32 is exhausted to the rear of the fuselage by the wind (cooling exhaust air) sent from the radiator fan 25, so that the temperature of the upper part of the exhaust pipe 32 can be lowered, and the exhaust pipe Constituent members such as the threshing device 4 and the grain tank 5 installed near 32 are unlikely to become high temperature. In addition, even if components such as the threshing device 4 and the grain tank 5 are heated by the heat of the exhaust pipe 32, they are cooled by the wind (cooling exhaust air) sent from the radiator fan 25, so that the heat deformation Etc. are prevented. Furthermore, the waste waste etc. which accumulate | stored on the body frame 1 between the threshing apparatus 4 and the Glen tank 5 can be skipped to the back of a body.

  In addition, without providing the 1st guide plate 34a and the 2nd guide plate 34b, the arrangement | positioning of the radiator fan 25 is changed, etc. in the space between the threshing apparatus 4 and the glen tank 5, from the front part of a body to a rear part. Although it is possible to adopt a configuration in which the wind is sent so as to escape, the space between the threshing device 4 and the glen tank 5 is surely produced by the first guide plate 34a and the second guide plate 34b. Since it can be sent to S, the effect of exhausting the heat of the exhaust pipe 32 to the rear of the machine body is enhanced, and the effect of cooling the constituent members such as the threshing device 4 and the glen tank 5 is also enhanced.

  Moreover, in this embodiment, since the existing radiator fan 25 is used as an air blower, compared with the case where a separate air blower is newly provided, a structure is not complicated and manufacturing cost is also suppressed.

[Another embodiment]
(1) As shown in FIG. 7, in the above-described embodiment, a blowing fan 35 different from the radiator fan 25 in the engine room R is blown in front of the space S between the threshing device 4 and the grain tank 5. Alternatively, it may be provided separately. In this case, when the shift lever (not shown) of the hydrostatic continuously variable transmission (HST) for travel (not shown) is set to the neutral position (N) or the forward position (F), the blower fan 35 is activated, The blower fan 35 may be configured to automatically stop when the transmission lever is moved to the reverse position (R).
(2) As shown in FIG. 8, in the above-described embodiment, the Glen tank 5 may include a plurality of heat radiation plates 36 that protrude in the horizontal direction on the left inclined surface 5 a. According to such a configuration, by providing the heat radiating plate 36, the effect of cooling the Glen tank 5 is further improved.
(3) In above-mentioned embodiment, the structure which provides the exhaust pipe 32 in the space S between the threshing apparatus 4 and the grain tank 5 above the body frame 1 (for example, the right side surface and the grain of the threshing apparatus 4) It is good also as a structure provided between the left side surface of the tank 5, or the left inclined surface 5a vicinity etc. in the bottom part of the Glen tank 5.

  As described above, the present invention can be applied not only to the ordinary combine harvester but also to the self-removing combine harvester, and not only to the grain tank but also to a combine equipped with a grain recovery hopper for bagging. In this combine, it is suitable when protecting components, such as a threshing device and a grain recovery unit, installed near the exhaust pipe from the heat of the exhaust gas.

3 Cutting part 4 Threshing device 5 Glen tank (threshing recovery part)
15 Driving part 18 Engine 25 Radiator fan (blower)
32 Exhaust pipe 34 Guide plate 36 Heat sink S Space

Claims (4)

A cutting part, a driving part, and an engine are provided at the front of the aircraft,
A threshing device and a grain recovery unit arranged side by side in the left-right direction at the rear of the aircraft,
An exhaust pipe extending from the engine and piped between the threshing device and the grain recovery unit;
A combine including a blower that generates a wind that passes through the space between the threshing device and the grain recovery unit from the front part of the machine body to the rear part.   The combine of Claim 1 provided with the guide plate which guides the wind which generate | occur | produced in the said air blower to the space between the said threshing apparatus and the said grain collection | recovery part.   The combine according to claim 1 or 2, wherein the grain recovery unit includes a heat radiating plate that receives wind generated by the blower.   The combine according to any one of claims 1 to 3, wherein the blower is a radiator fan of the engine.

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