JP2003265028A - Threshing device in combine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To avoid that the total length of a combine has a large length due to a fanning mill, and make that dusts are hardly sucked into the fanning mill. <P>SOLUTION: This threshing device is provided by installing the fanning mill 30 in an arrangement that the whole of a fan case 31 is positioned behind a front wall 16 of a threshing part A. An exhaust port 36 for adjusting the amount of selection wind is installed between the lowest end position D and the foremost position F of the fan case 31 of the fanning mill 30, and installing a lid body 45 of the exhaust port 36 at the outside of the fan case 31 in a state that it is adjusted by being shaked for opening and closing around a shaft center 46a as facing sideways to a machine body and positioned at the upper end side. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing section in which a handling cylinder rotates about an axis in a longitudinal direction of a threshing machine body, and an oscillating sorting device directs a threshing processed product from the threshing section to the rear side of the threshing machine body. The present invention relates to a combine threshing device equipped with a sorting unit that sorts while transporting.

[0002]

2. Description of the Related Art In the above threshing device, a Kara-miso is provided below the front end side of the rocking / sorting device, and the Kara-mitsu is used to supply a sorting wind toward the rear of the threshing machine to perform a wind-sorting process on the threshing-treated product. However, in the past,
There were the following problems.

[0003]

[Problems to be Solved by the Invention] That is, the Kara Minoh is provided in such a manner that it protrudes more toward the front side of the threshing machine than the front wall of the threshing section, and the front-rear length of the threshing device becomes longer by that much, and The front and back length was also long. An object of the present invention is to provide a threshing device for combine harvesters, which is equipped with Karatomi while making the combine compact in the front-rear direction and further capable of suppressing the dust suction of Karatomi in a structurally simple manner.

[0004]

The constitution, action and effect of the invention according to claim 1 are as follows.

[Structure] A threshing section in which a handling cylinder rotates about an axis in a longitudinal direction of the threshing machine body, and a swinging and sorting device conveys a threshing processed product from the threshing section to a rear side of the threshing machine body for sorting processing. In a combine threshing device equipped with a sorting section, the whole fan case of Kara Minoh, which supplies sorting air in the rearward direction of the threshing machine body, is arranged after the front wall of the threshing section to swing the Kara Minoh at the front end side of the sorting apparatus. Is provided below the fan case between the lowermost end portion and the frontmost end portion of the fan case, and an air outlet for adjusting the amount of sorted air is provided. It is provided on the outside of the fan case while being supported so as to be swingable around the core.

[Operation] Since the whole fan case of Kara Minoh is located after the front wall of the threshing part, the length of the lower part of the threshing device in the front-rear direction is shorter than that of the conventional combine in which the Kara Minoh was projected from the front wall of the threshing section. It is possible to equip Kara so while shortening the length and shortening the front and back length of the whole combine.

When working with a combine, dust such as leaves detached from the planted culm may be generated on the side of the uncut ground, and when the dust gets close to the machine body, it becomes easy to be sucked into the Karato. However, if the lid of the Kararan exhaust port is adjusted to the open side, the wind discharged from the Karawan exhaust port hits the cover and flows toward the lateral side of the aircraft, which causes dust such as debris. May become difficult to approach the fuselage, and it may be difficult for the Karato to suck in dust.

[Effect] [0008] Therefore, while the Kara Minoh is provided so as to supply the sorting wind to the rearward direction of the machine body, the threshing treatment product can be wind-sorted, but the front-rear length of the threshing device is shortened to increase the length of the whole combine. Can be made as short as possible.

Further, it is possible to prevent dust such as cut leaves from being sucked into the Karato so that troubles due to the suction of dust can be easily avoided. Moreover, the means for this purpose uses a sorting air volume adjusting means to simplify the structure. can get.

The structure, operation, and effect of the invention according to claim 2 are as follows.

[Structure] In the structure according to the first aspect of the present invention, there is provided a blower guide extending from the air passage of the fan case to a position near the upper part of the first screw to guide the selection wind to the first screw.

[Operation] When the Karato is provided such that the whole fan case of the Karato is located after the front wall of the threshing part, the interval between the Karato and the No. 1 screw is shortened, and the grains are allowed to flow down to the No. 1 screw. The distance between the falling board and Kara-mitsu will be shortened,
In some cases, the sorting wind from Kara no Tsubo becomes a vortex at the falling plate, which adversely affects the sorting process. However, since the blower guide is provided, a part of the sorting wind from Kara no Tsubo passes through the screw most by the guide of the blower guide to reach the downflow plate, and it becomes difficult for eddy current to be generated in the downflow plate. With this arrangement, if the entire fan case is located after the front wall of the threshing unit, even if the distance between the Karato and the No. 1 screw is shortened, it is possible to prevent the selection process from being adversely affected. It is provided with Karato.

[Effect] Therefore, the whole Kara-mitsu fan case can be obtained after the front wall of the threshing portion and the whole combine can be made compact without lowering the sorting accuracy.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION As shown in FIG. 1, a frame of a reaping section 4 is provided on the front end side of a body frame 3 of a self-propelled vehicle that is self-propelled by a crawler type traveling device 1 and has a boarding type operation section 2. By rotatably connecting the base end portion of 4d and swinging the mowing portion frame 4d up and down with respect to the machine body frame 3 by the lift cylinder 5, the mowing portion 4 is raised to a lower working position and raised. Airframe frame 3 of the self-propelled airframe that is configured to move up and down to the position
The threshing device 10 and the grain tank 6 are provided in the to form a combine. This combine harvests rice, wheat, etc., and is specifically configured as follows.

The mowing unit 4 raises and processes the planted culms by the raising device 4a, and at the same time, the clipper-type cutting device 4 is provided.
The harvested grain culm is subjected to a mowing process by b, and is conveyed rearward of the machine body by a conveying device 4c including a sandwiching conveying device that acts on the plant side and a locking conveying device that acts on the tip side.

As shown in FIG. 2, the threshing device 10 includes a threshing section A having a handling chamber 11 located above the front end of the threshing machine body, and a drive having the front end located below the handling chamber 11. A sorting section B including a swingable sorting apparatus 20 and the like, and a No. 1 screw conveyor 25 and a No. 2 screw conveyor 26, which are located side by side in the longitudinal direction of the threshing machine at the bottom of the sorting section B. And a collecting section C having

The threshing section A clamps and conveys the root side of the cut culm from the conveying device 4c of the cutting section 4 to the rear of the machine by the threshing feed chain 12, supplies the tip side to the handling room 11, and the tip thereof. The side is threshed by the handling cylinder 13 which rotates around the axis center 13a in the front-back direction of the machine, and the threshing discharge straw is discharged by the threshing feed chain 12 from the dust feed port 14 located at the rear end of the handling chamber 11, The threshing-treated product such as grains leaks from the receiving net 15 of the handling chamber 11, and the threshing-treated product such as straw waste is discharged from the dust supply port 14.

The sorting section B sorts threshes such as grains falling from the net 15 of the handling chamber 11 and straw dust falling from the dust inlet 14 of the handling chamber 11 while conveying them toward the rear of the threshing machine. The specific gravity by the swing sorting device 20 to be processed, and the sorting wind supplied to the rearward direction of the threshing machine by the Kara Mino 30 provided below the front end side of the swing sorting device 20 to remove the threshed material into grains. , Sorting such as dust from straw, dropping the grains from the rocking sorting device, the dust together with the sorting wind, the discharge port 21a of the dust exhaust fan 21, and the rocking sorting device 2
It is discharged to the outside of the threshing machine from the dust discharge port 22 of the threshing machine located behind 0.

The collecting section C conveys the No. 1 processed product from the sorting section B by the No. 1 screw conveyor 25 at the bottom of the sorting section B in the lateral direction of the threshing machine body, and at the lateral outside of the threshing machine body, the frying device ( (Not shown) so as to be collected into the grain tank 6 so as to be collected. The No. 2 processed product such as un-fine grain from the sorting section B is transferred to the No. 2 screw conveyor 2
The bottom of the sorting section B is conveyed in the lateral direction of the threshing machine body by 6 and is lifted into the threshing machine body by the lifting device 27 connected to the No. 2 screw conveyor 26 on the lateral outer side of the threshing machine body to swing. Reduction is performed so that the front end side of the sorting device 20 is treated again.

As shown in FIG. 2, FIG. 3, FIG. 4, etc., the Karato 30 is arranged so that the foremost end portion F is located immediately below the front wall 16 of the threshing section A, and both side walls of the threshing machine body are arranged. The fan case main body 31a attached across the inner surfaces of the plates 17, the left side plate which is a part of the lateral side wall plate 17 on the left side of the threshing machine and is provided with the intake port 32, and the lateral side wall plate 17 on the right side of the threshing machine body. A fan case 31 consisting of a part of each of the right side plates which is partly provided with an intake port 32
A rotary spindle 34a is rotatably attached to a pair of support members 33 that are separately attached to the outsides of the side plates 17, and a plurality of rotary blades 34b are provided inside the fan case 31. 34a of the fuselage lateral axis 3
4c and a rotary fan 34 that is rotatably positioned around 4c.

In other words, the Karako 30 is transmitted to the one end side of the rotary support shaft 34a, and the rotary fan 34 is driven by this power. The fan case 3
1 The air is sucked into the fan case 31 from the intake ports 32 on both ends, and the sorting wind is blown backward from the air passage 35 located on the rear side of the threshing machine body of the fan case 31 and supplied to the sorting section B. .

The inner end of both side wall plates 17 of the threshing machine is arranged so that the front end is located inside the wind passage 35 of the Karato 30 and the rear end is located near above the screw 25a of the No. 1 screw conveyor 25. The blower guide 40 is composed of sheet metal members attached across the sides.

Due to the arrangement of the sheet metal members constituting the blower guide 40, the blower guide 40 extends from the lower part in the air passage 35 toward the rear of the threshing machine to near the upper part of the first screw 25a. In addition, the width of the sorting section B is the same as that of the sorting section B. Part of the sorting air supplied by the Kara Minor 30 reaches the upper part of the No. 1 screw 25a and crosses the No. 1 screw conveyor 25. The sorting air is guided so as to reach the falling plate 41 which is continuous with the bottom plate of the conveyor 25 and drops the most processed product such as fine grain onto the first screw conveyor 25.

As shown in FIGS. 3 and 6, between the lowermost end portion D and the frontmost end portion F of the fan case main body 31a of the Karako 30, the fan case main body 31 extends substantially the entire length in the lateral direction of the machine body. An exhaust port 36 having a length is provided, and a lid 45 for the exhaust port 36 is provided outside the fan case 31.

The lid 45 is provided on both side walls 17 of the threshing machine body.
The rotary support shaft 46 is rotatably attached to the rotary support shaft 46 through a support rod 47 that extends integrally from the rotary support shaft 46 and is connected to the outer surface of the lid 45 at the extended end side.
It is supported by 6 and is swingably opened and closed around a shaft center 46a of a rotation support shaft 46 which is located on the upper end side of the lid 45 and is laterally oriented to the machine body. As shown in FIG. 5 and the like, a closing operation spring 49 is attached across the swing arm 48 and the threshing machine body that are integrally and rotatably connected to the end portion of the rotary support shaft 46 located inside the machine body, One end of an operating rod 50 is connected to the swing arm 48.

That is, as shown in FIG. 5 and the like, an operating portion 51 is formed by providing a bending portion on the other end side of the operating rod 50 and attaching an operating knob, and a guide groove 52a of an operating guide 52 shown in FIG. By moving along with the pulling operation force by the operation rod 50,
The oscillating arm 4 for operating force by the closing operation spring 49
8 swings to swing and open the lid 45 around the shaft core 46a via the rotation support shaft 46. Then, the operating portion 51 is hung and supported by one locking portion 52b selected from the locking portions 52b provided at a plurality of positions of the operation guide 52, so that the lid body 45 is opened against the closing operation spring 49. Is maintained in the state, and the operation part 51 is provided with a plurality of locking parts 52.
By changing to b, the opening angle of the lid 45 maintained changes.

That is, the operating portion 51 is replaced with a plurality of locking portions 52b.
When the lid 45 is swung open and closed to close the air outlet 36, the air outlet 36 is opened and the air outlet 36 is opened or closed to a large or small degree.
Adjust the opening and closing. When the air exhaust port 36 is opened, the Karako 30 exhausts a part of the sorting air from the exhaust port 36, and the air volume of the sorting air supplied to the sorting unit B is reduced, and the amount of grain culm supplied by the threshing device 10 is reduced. The work can be performed while adjusting the amount of sorting air in the sorting unit B. That is, when the amount of grain culm supplied to the threshing device 10 is large, the exhaust port 36 is closed or adjusted to the closed side, and even if the amount of the processed material supplied to the sorting unit B is large, the sorting is quick and accurate. As is often done,
The sorting air supplied to the sorting unit B is adjusted to the large amount side. When the amount of grain culm supplied to the threshing device 10 is small, the air outlet 3
6 is opened to the maximum or adjusted to the open side, and is supplied to the sorting unit B so that even if the amount of the processed material supplied to the sorting unit B is small, the number of grains discharged along with the dust to the outside of the machine is small. The selected wind is adjusted to the small amount side.

[Other Embodiment] As shown in the above embodiment, the foremost end portion F of the fan case 31 is the front wall 16 of the threshing portion.
In addition to providing the Karato 30 in a position located immediately below, even if the Karato 30 is installed in a position in which the foremost end portion F of the fan case 31 is located on the rear side of the threshing machine body from the front wall 16 of the threshing unit,
It is possible to prevent the threshing device 10 from becoming long in the front-rear direction due to. Therefore, the object of the present invention can be achieved by providing the entire fan case 31 in a position located after the front wall 16 of the threshing portion A.

[Brief description of drawings]

1] Side view of the whole combine

[Fig. 2] Vertical side view of the threshing device

FIG. 3 is a cross-sectional view of the Karato arrangement section.

[Figure 4] Side view of Kara Minoh

FIG. 5 is a side view of the lid operation structure.

FIG. 6 is a front view of the threshing device.

FIG. 7 is an explanatory diagram of an operation guide.

FIG. 8 is a cross-sectional view of the exhaust port arrangement portion.

[Explanation of symbols]

13 handle 13a Handle shaft axis 16 Front wall of threshing section 20 Swing sorting device 25a No. 1 screw 30 Kara 31 fan case 35 wind path 36 Exhaust port 40 Blower guide 45 Lid 46a Shaft core A threshing section B sorter D Fan case bottom edge F Frontmost part of fan case

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Takafumi Mitsui             64 Ishizukitamachi, Sakai City, Osaka Prefecture Kubo Co., Ltd.             Ta Sakai Factory (72) Inventor Yoshihiro Inoue             64 Ishizukitamachi, Sakai City, Osaka Prefecture Kubo Co., Ltd.             Ta Sakai Factory F term (reference) 2B095 AA01 AA07 AA12 BA03 CA02                       CB04 CB05 CB06 CB13 CB19                       CB21 FA14

Claims (2)

[Claims] 1. A threshing unit in which a handling cylinder rotates about an axis in the longitudinal direction of the threshing machine body, and an oscillating sorting device sorts threshing products from the threshing unit rearwardly to the threshing machine body. A combine threshing device equipped with a sorting unit, in which the entire fan case of Kara Minoh, which supplies sorting wind to the rear of the threshing machine, is located after the front wall of the threshing unit, and swings the Kara Minoh front end of the sorting unit. Provided on the lower side of the side, between the lowermost portion and the frontmost portion of the fan case,
An air outlet for adjusting the sorting air volume is provided, and the lid of the air outlet is provided outside the fan case in a state where it can be swingably adjusted around a lateral axis of the machine body located on the upper end side of the lid. A combine harvester. 2. The combine threshing device according to claim 1, further comprising a blower guide extending from the air passage of the fan case to a position near the upper side of the first screw to guide the sorted wind to the first screw.