JP3538556B2 - Sorting unit structure of threshing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sorting unit structure of a threshing device having a front wall between a front grain pan and a fine sorting unit in a swing sorting case.

[0002]

2. Description of the Related Art Conventionally, as a structure of a sorting unit of a threshing apparatus of this kind, it is well known that a sorting process is performed by blowing a sorting wind from Karino to a sorting unit. There is no structure in which a separate sorting wind is separately supplied to the rough sorting section disposed on the upper side, and the rough sorting section performs the wind sorting process.

[0003]

Therefore, in the structure of the sorting unit of the conventional threshing apparatus, even in the rough sorting unit, it is necessary to quickly remove straw wastes and the like from the threshing treatment to enhance the sorting ability. For this purpose, it has been proposed to open the entire front part of the swing sorting case so that the sorting wind for rough sorting can be introduced into the swing sorting case from, for example, Karino. . However, in the case where the entire front portion of the swing sorting case is opened as described above, there is a problem that a part of the processed material may flow forward from the fine sorting portion through the opening portion.

[0004] The present invention has been made in view of the above-mentioned circumstances, and while allowing a sorting wind for rough sorting to be introduced from the front side of an oscillating sorting case, a processed material flows out from a location where the sorting wind is introduced. An object of the present invention is to provide a structure of a sorting unit of a threshing device that can be prevented from being performed.

[0005]

[Means for Solving the Problems]

(Structure) The sorting section structure of the threshing apparatus according to claim 1 of the present invention is provided on a front wall section between the front grain pan and the fine sorting section in the swing sorting case, for preventing a processed material from flowing out from a lower end of the front wall section. barrier leaving, to form a selecting airflow inlet port for introducing an auxiliary sorting wind for coarse screening in the swing sorting case, before
The auxiliary sorting wind from the sorting wind inlet is
And the chaff sheave located behind this front Glen Pan
A state of being guided above the chaff sheave through a space,
The auxiliary sorting wind from the sorting wind introduction port is supplied to the chaff sieve.
Control means that can be switched to a state where it is guided below
Is provided as a characteristic configuration.

(Operation) According to the configuration of the first aspect of the present invention, the auxiliary sorting air inlet is provided on the front wall portion between the front grain pan and the fine sorting portion in the swing sorting case for preventing the outflow of the processed material. , The barrier prevents the processed material from flowing forward from the selective sorting portion of the swing sorting case. Also,
Since the barrier remains as part of the front wall,
The barrier functions as a reinforcing member for the left and right side walls of the swing sorting case and the bottom portion connected to the fine sorting portion.

(Effects) Therefore, according to the configuration of the first aspect of the present invention, it is possible to effectively prevent the processed material from flowing out of the selective sorting section to the front by the barrier. Since the sorting process can be performed and the swing sorting case is reinforced, the durability of the swing sorting case is improved despite the provision of the auxiliary sorting wind introduction port.

(Structure) The structure of the sorting unit of the threshing apparatus according to claim 2 of the present invention is the same as that of claim 1,
It is characterized in that a part of the sorting wind from Karino is guided to the sorting wind introduction port to obtain the auxiliary sorting wind.

(Operation) According to the configuration of the second aspect of the present invention, a part of the sifted wind from Karino is guided to the sifted wind introduction port to obtain the auxiliary sifted wind. It is not necessary to separately provide a blowing device for blowing the auxiliary sorting wind exclusively.

(Effects) Therefore, according to the configuration of the second aspect of the present invention, since there is no need to separately provide a blowing device for blowing the auxiliary sorting wind exclusively, the structure can be simple and inexpensive.

[0011] (Configuration) sorting unit structure threshing apparatus according to claim 3 of the present invention is the one described in claim 1 or 2, as well as constituting the front Eat <br/> Yafushibu the opening adjustable , in conjunction with said chaff sieve before Kioku wind adjusting means to decrease the wind as from the screened air inlet of the auxiliary sorting air is introduced above the chaff sieve to side closing the opening of the chaff sieve There is a characteristic configuration.

(Operation) According to the configuration of the third aspect of the present invention, the opening of the chaff sheave disposed behind the front Glen pan can be adjusted, and the opening degree of the chaff sheave becomes closer to the closing side. Since the chaff sheave and the wind force adjusting means for adjusting the wind force of the auxiliary sorting wind from the sorting wind inlet are linked so as to reduce the wind power of the auxiliary sorting wind introduced from the sorting wind inlet, The opening degree of the chaff sheave can be adjusted in accordance with the flow rate, and the wind power of the auxiliary sorting wind for rough sorting is adjusted and adjusted so as to be appropriate in accordance with the amount of processed material.

(Effects) Therefore, according to the configuration of the third aspect of the present invention, the opening degree of the chaff sheave is adjusted and the sorting air for the rough sorting is sent so that the rough sorting process can be properly performed according to the threshing amount. Since the adjustment of the wind power can be changed in a coordinated manner, it does not take much time and effort to make the adjustment as compared with the case of individually changing and adjusting, and the adjustment can be performed quickly, and the sorting performance can be improved.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a threshing device mounted on a combine. In the threshing apparatus, while the culm, which has been cut by a pre-cutting device (not shown), is conveyed backward while holding the stock with a feed chain 1, the spike portion is subjected to a handling process by a handling cylinder 2. It is configured as follows. More specifically, the threshing device includes a threshing unit A, a sorting unit B, and a collecting unit C.

The threshing unit A has a handle cylinder 2 pivotally mounted around a longitudinal axis X in a handling chamber 3 and a receiving net 4 along the outer periphery of the handle cylinder below the handle cylinder 2. Is stretched out. The sorting section B is composed of a swing sorting case 5 and a Karamin 6.
The recovery section C is a swinging sorting case 5 for the first material recovery screw conveyor 7, the second material recovery screw conveyor 8, and the processed material recovered by the second material recovery screw conveyor 8.
And a reduction device 9 for reduction on the front side.

As shown in FIG. 1, the swing sorting case 5 comprises:
As a whole, it is made of synthetic resin, and its rear end is oscillatingly driven by an eccentric drive mechanism 10 and its front side is guided and supported by guide rollers 11 in a reciprocating manner. And swing sorting case 5
, A front Glen pan 12, a chaff sheave 13, a Glen sheave 14 as a selective sorting section, a rear Glen pan 15, and a straw rack 16 are provided. To be more specific, the front Glenpan 12 performs specific gravity sorting while receiving the leaked material from the receiving net 4 and the processed material from the reduction device 9 and transporting it backward. A step D is provided between the rear end, which is the transfer end, and the chaff sheave 13.
Is provided, and the processed material is dropped and supplied from the front gun pan 12 onto the front of the chaff sheave 13. The sorting wind blown by Karino 6 is branched from the rear opening 17a of the Karino case 17 in three directions and supplied. That is,
As shown in FIG. 2, the guides 18 and 1 form a first air path F1, a second air path F2, and a third air path F3 in order from the bottom.
9, 20 are provided. First air path F1 and second air path F2
, A main sorting wind directed upward and backward is supplied to the leaked material from the Glen Sheave 14, the Glen Sheave 14 itself, and further to the chaff sheave 13 and the straw rack 16. The third air path F3 is formed in the air path that rises most steeply, and is formed from the intermediate position in the front and rear direction of the front Glen pan 12 in the swing sorting case 5 to the front end of the Glen sheave 14. An auxiliary sorting wind inlet 22 for introducing the auxiliary sorting wind from the third air passage F3 is formed in the front wall portion 21 in the forwardly inclined posture. Front wall 2
The rising wall portion from the lower end of 1 to the lower end of the auxiliary sorting wind inlet 22 is a barrier S for preventing the processed material from flowing out from the Glen sheave 14 to the front. The barrier S not only functions to prevent the processed material from flowing forward, but also functions as a reinforcing member of the swing sorting case 5. The auxiliary sorting wind introduced from the auxiliary sorting wind inlet 22 is:
The air is blown rearward through the step D, whereby the straw and the like among the processed materials on the chaff sheave 13 are blown rearward.

As shown in FIG. 2, a Karamin case 17 in which the Karamin 6 is installed is located forward of the front wall 21.
A passage communicating in the front-rear direction is formed between the upper surface 17b of the front panel and the front Glen pan 12. A wind shield is provided to prevent the auxiliary sorting wind from blowing through the passage. This windshield is configured by fastening a flexible sheet member 24 made of a resin sheet member to the front end frame portion 5a of the swing sorting case 5 with a bolt and hanging downward. At this time, the lower edge of the flexible sheet member 24 is configured to be in sliding contact with the upper surface 17 a of the Karamin case 17. As shown in FIG. 2, a second material for restricting the processed material from falling downward from a gap K between the front wall 25 of the threshing device and the front end frame portion 5 a of the swing sorting case 5. Swing sorting case 5 with flexible seal member 26
Are bolted over the left and right widths, and their free ends are in sliding contact with the front wall 25. Note that the flexible seal member 24 and the second flexible seal member 26 are constituted by a series of sheet members.

As shown in FIG. 1 to FIG. 6, the chaff sheave 13 having a range of about two-thirds on the front side of the whole thereof has a chaff plate 27 Each of the chaff plates 27 # is supported so as to be able to swing up and down around the upper swing fulcrum. The remaining one-third range of the chaff sheave 13 is configured to fix the chaff plate 27 in a fixed posture. Then, as shown in FIG. 5, each of the chaff plates 27 # of the movable portion swings downward with an increase in the weight of the processing object, thereby operating the front and rear openings of the chaff plates 27 to the open side. As the weight of the processed material decreases, the spring 2
8, the front and rear openings of the chaff plates 27 are elastically urged toward the closed side.
Changes the posture to the closed side. The lower ends of the chaff plates 27 are pivotally supported by a series of link bar members LB back and forth around a horizontal axis. Then, a movable chaff plate 27 located substantially at the center in the front-rear direction.
The arm member 29 that can change its posture so as to be swingable around a coaxial center with the swing center P on the upper side of the left side plate 5 of the swing sorting case 5
L, on the support shaft 27a of the chaff plate 27, an engaging hole 29a formed in the free end of the arm member 29 is provided on the left side wall 5 of the swing sorting case 5.
L can be selectively engaged with the plurality of locking pins 30 formed in the L, so that the arm member 29
It is held in a predetermined posture over the swing center P and the locking pin 30. The five engagement pins 30 are provided at predetermined intervals along an arc centered on the swing center P. The arm member 29 is provided with the engagement hole 29a in the engagement pin 3
It is constituted by a spring plate member that can be flexibly deformed so that it can be fitted to and detached from the outside. As shown in FIGS. 5 and 6, a horizontal shaft member 50 that supports the lower side of the chaff plate 27 so as to be swingable around the horizontal axis with respect to the link bar member LB.
Extend laterally outward through an arc-shaped long hole 51 formed in the left lateral side plate 5L and an arc-shaped long hole 52 formed in the arm member 29, and extend along the horizontal shaft member 50 and the arm member. The spring 28 is stretched over a spring locking piece 29b provided at the upper end of the spring 29. With this structure, the chaff plate 27 is swingable within the range of the arc-shaped long hole 52 that draws an arc centered on the swing center P, and the arm member 29 is centered on the swing center P. The attitude can be changed within the range of the arc-shaped long hole 52 that draws an arc.

Then, the processed material that has not leaked from the receiving net 4 through the dust outlet 31 formed at the end of the handling chamber 3 is discharged onto the rear Glen pan 15. A straw rack portion 32 and a sieving line 33 are provided side by side on the rear Glen pan 15 at predetermined intervals on the left and right. And
The lower surface 15 of the front part of the rear Glen pan 15 made of sheet metal
“a” has a structure that is inclined forward and upward so that the vertical interval between the chaff sheave 13 and the sorting surface is widened forward.
Further, since the rear portion of the chaff sheave 13 is located below the rear end of the rear glen pan 15, the processed material discharged from the rear end of the rear glen pan 15 is discharged to the chaff plate 27 to which the chaff sheave 13 is fixed. Will be dropped and supplied to the juxtaposed places.

Further, an embodiment of the invention according to claim 3 is added. That is, behind the auxiliary sorting wind introduction port 22 formed in the front wall portion 21 of the swing sorting case 5,
The swing opening / closing plate 34 is pivotally supported so as to be swingable up and down around the horizontal axis Q, and the swing opening / closing plate 34 is linked to a link bar LB that links the movable chaff plates 27 to each other. The arm 35 is linked. As a result, as shown in FIG. 3, when the opening of the chaff sheave 13 is set to a small value, the free end of the swinging opening / closing plate 34 is positioned above the auxiliary sorting wind introduction port 22, and the auxiliary sorting is performed. The sorting wind from the wind inlet 22 is divided into the front Glen pan 12 and the chaff sheave 13.
Is blocked by the swing opening / closing plate 34 so that almost no air is blown to the step D portion between them. Then, as shown in FIG. 2, when the opening of the chaff sheave 13 is set to a large value, the free end of the swinging opening / closing plate 34 is in a position located below the auxiliary sorting wind introduction port 22, and the auxiliary sorting is performed. The sorting wind from the wind inlet 22 is guided upward and rearward by the swinging opening / closing plate 34 and blows rearward on the chaff sheave 13 through the step D.

With the above configuration, the auxiliary sorting wind inlet 2
The auxiliary sorting wind introduced from 2 will be blown rearward along the sorting surface on the chaff sheave 13 through the step D, whereby low-specific-weight straw waste and the like in the processed material on the chaff sheave 13 are removed. The material having a large specific gravity, such as a grain, is leaked downward between the chiff plates 27 of the chief sheave 13 downward. Then, a space surrounded by the rear Glen pan 15 and the chaff sheave 13 (the left and right sides are naturally provided with the left and right side walls of the oscillating selection case 5) so that the auxiliary sorting wind is not scattered upward and the sending wind is reduced. ), The auxiliary sorting wind has relatively strong wind force even at the point where the processed material falls and is supplied from the auxiliary Glen pan 15 onto the chaff sheave 13, and the rear Glen pan 15 Straw chips and the like having a low specific gravity are blown rearward from the processed material dropped from the container, thereby facilitating the specific gravity selection and the wind selection on the chaff sheave 13.

(Alternative Embodiment) Although not shown, a punching steel plate or a mesh body having a large number of holes is attached to the auxiliary sorting wind introduction port, and the auxiliary sorting wind is introduced into the swing sorting case. Dust and the like may not be mixed.

[Brief description of the drawings]

FIG. 1 is a longitudinal side view showing a combine threshing apparatus.

FIG. 2 is a longitudinal sectional side view showing a main part.

FIG. 3 is a longitudinal sectional side view showing a main part.

FIG. 4 is a perspective view showing a main part.

FIG. 5 is a side view showing a mechanism for adjusting the opening of the chaff sheave.

FIG. 6 is a sectional view taken along the line VI-VI in FIG. 5;

[Explanation of symbols]

5 Swing sorting case 6 Tang Min 12 Front Glen Bread 13 Chaff Sheave 21 Front wall 22 Sorting wind inlet 34 Wind sending adjustment means S barrier

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Susumu Hirata 64 Ishizukita-cho, Sakai City, Osaka Prefecture Inside Kubota Sakai Factory (72) Inventor Shuichi Mori 64 Ishizukita-cho, Sakai City, Osaka Prefecture Kubota Sakai Manufacturing Co., Ltd. In-house (72) Inventor Hisashi Doi 64 Ishizu-Kitamachi, Sakai City, Osaka Prefecture Inside Kubota Sakai Works, Ltd. (72) Inventor Hiroyuki Kondo 64 Ishizu-Kitamachi, Sakai City, Osaka Prefecture Inside Kubota Sakai Works, Ltd. (72) Inventor Toyokawa Kawabata 64, Ishizukita-cho, Sakai-shi, Osaka, Japan (72) Inventor: Yukigishi Yukizai 64, Ishizukita-cho, Sakai-shi, Osaka, Japan Kubota Sakai Factory (72): Inventor, Yoshihiro Inoue Sakai, Osaka 64 Ishizu-Kitacho, Ishizu-shi Kubota Sakai Works Co., Ltd. (56) References JP-A-8-63 (JP, A) JP-A-7-264927 (JP, A) JP -274696 (JP, A) (58 ) investigated the field (Int.Cl. ^7, DB name) A01F 12/44 - 12/48

Claims (3)

(57) [Claims] 1. A swing sorting case, wherein a barrier for preventing outflow of a processed material is left from a lower end of the front wall of the swing sorting case at a front wall extending between a front grain pan and a fine sorting section. Forming a sorting wind introduction port for introducing an auxiliary sorting wind for sorting, and supplying an auxiliary sorting wind from the sorting wind introduction port to the front part
And the chaff sieve located behind this front Glen Pan
State to guide above this chaff sheave through
And the auxiliary sorting wind from the sorting wind introduction port
Wind control that can be switched to guide under the
The sorting unit structure of the threshing device provided with means . 2. The structure of the sorting unit of the threshing apparatus according to claim 1, wherein a part of the sorting wind from Karamino is guided to the sorting wind inlet to obtain the auxiliary sorting wind. The 3. Before Eat Yafushibu with adjustably configured opening, it is enough to opening the closing side of the chaff sieve from the screened air inlet guide <br/> enter above the chaff sieve auxiliary sorting section structure of threshing apparatus according to claim 1 or 2 wind sorting air are coordinated with said chaff sieve before Kioku wind adjustment means to reduce.