JP3376682B2 - Threshing machine wind separator - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind separator for a thresher used in combine harvesters and harvesters.

[0002]

BACKGROUND ART winnowing apparatus of a conventional threshing machine, especially open flat 2-
The structure is as shown in Japanese Patent Publication No. 203712.

[0003]

In the threshing device as described above, since the sorting wind blasted from the Kara tsubo directly blows up to the sheave of the swing shelf, when the swing shelf swings, the sorting wind for the sheave is changed. The wind direction changes, and the area of the sieve against which the sorting wind hits also changes, so that the sorting ability is unstable. The present invention is intended to solve the above-mentioned problems.

[0004]

The threshing device according to the present invention solves the above problems and has the following structure. That is, in the invention according to claim 1, in the handling chamber 2 provided in the threshing device 1, the handling barrel 3 for threshing the grain culm sent by the transport device is mounted on the handling chamber 2, and the handling chamber is provided. An oscillating shelf 5 for swinging and selecting is provided at a lower position of 2, and a Karato 6 is provided at a lower position of the oscillating shelf 5 on the upper side in the sorting wind feeding direction, and a Karato 6 outlet of the Karato 6 is provided. With the threshing device 1 provided with upper and lower wind splits 11 and 13, the first spiral 7 is provided on the lower side in the sorting wind feeding direction, and the second spiral 8 is further provided on the lower side in the sorting wind feeding direction of the first spiral 7, respectively. The rocking rack 5 has a space 12 between the transfer rack 5a and the chaff sheave 5b, and a guide member 1 positioned on the front side of the rocking net 5e located below the chaff sheave 5b.
4 are provided respectively, and the end of the casing 10 in the flow direction of the sorting wind is at the outlet of the sorting wind that is blown from the Karato 6 and blows out from the sorting wind passage W0 between the casing 10 and the upper wind split 11. The part 10a and the terminal part 11b of the wind split 11 are arranged so as to face each other so as to be substantially at the same position in the flow direction.

According to the second aspect of the present invention, a gap A is provided between the upper wind split 11 and the guide body 14, and the sorting wind blown from the sorting wind passage W0 is provided in the upper part of the guide body 14 toward the rear. The air selecting device of the threshing machine according to claim 1, further comprising an upper surface 14b for guiding the upper direction.

[0006]

[Function] Grains removed from the handling room 2 fall onto the transfer rack 5a,
By swinging the swing shelf 5 in the front-rear direction, the swing shelf 5 is transferred to the rear end portion of the transfer shelf 5a. At that time, the sorting wind generated from the Kara sono 6 and the sorting wind from the sorting air passage W0 is sent to the chaff sheave 5b through the space 12 and acts on the grain removal sent to the end side of the transfer shelf 5a. , Rear chaff sheave 5b
And the grain removal will not be delayed. And casing 1
0 and the upper wind split 11 at the outlet of the sorting wind blown from the sorting wind passage W0, the end portion 10a of the casing 10 and the end portion 11b of the wind split 11 in the flow direction of the sorting wind are located at substantially the same position. Since they are arranged so as to face each other, the sorting wind smoothly goes straight to the space 12 without being curved downward. Moreover, the sorting wind is applied to the upper surface 1 of the guide body 14.
4b will be smoothly guided to the space 12
The flow of the sorting wind to is more reliable. In claim 2
In addition, the length L1 of the facing surface 14a of the guide body 14 is
Since the length L of the facing surface 11a of the wind split 11 is shorter,
The lower part of the sorting wind from the air passage W0 is
The upper surface 14b is not disturbed by hitting the facing surface 14a.
The contact is smoothly guided by.

[0007]

1 shows a thresher having an embodiment of the present invention. 1 is a threshing device such as a combine, and a handling room 2 is provided on the upper front side in the threshing device 1,
A handling cylinder 3 is axially mounted in the handling chamber 2. A handling barrel receiving net 4 is arranged below the handling barrel 3, and a swing rack 5 is arranged below the handling barrel receiving net 4.

The structure of the swing shelf 5 will be described. Reference numeral 5b is a chaff sheave that is continuously attached to the rear end portion of the transfer shelf 5a, 5c is a gren sheave provided continuously to the end portion of the chaff sheave 5b, and 5d is a straw rack provided after the end portion of the gren sheave 5c. . A swing net 5e is formed below the chaff sheave 5b and the Glen sheave 5c. Grains removed from the handling chamber 2 fall onto the transfer shelf 5a, and due to the rocking of the rocking shelf 5 in the front-back direction,
It is transferred to the rear end side on the transfer rack 5a. The grain-falling grains that have not fallen fall from the end portion of the handling barrel 3 of the handling chamber 2 onto the chaff sheave 5b and join the grain-removing grains transferred from the transfer rack 5a. The combined processing object is chaff sieve 5b.
While being transferred from the rear to the Glen Sieve 5c,
The straw dust after the wind selection is transferred to the rear Straw rack 5d.
It is discharged from the end of d. Further, the light dust that has not fallen on the transfer shelf 5a or the chaff sheave 5b is discharged from the cross flow fan 15 to the outside of the machine.

The rice that has been wind-selected and leaked is first taken into the spiral 7 and stored in the Glen tank or the like through the grain lifting device or the like. Further, despite the wind selecting action, the residual object to be processed left on the chaff sheave 5b and the Glen sheave 5c is transferred to the Straw rack 5d by the swinging action. In the meantime, the residual object to be treated in which the branch stem particles are mixed leaks and is taken into the second spiral 8 as the second object to be treated.

The second object to be treated taken in by the second spiral 8 is returned to the front part of the transfer shelf 5a, and again the chaff sheave 5 is returned.
It is subjected to a wind-selecting action from b to be selected, or is reduced to the handling barrel 3 or a processing barrel provided on one side of the handling barrel 3 and threshed again. The relationship between the rocking shelves 5 and the sorting wind sent from the Karako 6 will be described. A space 12 is formed between the transfer shelf 5a and the chaff sheave 5b.
A guide body 14 is provided at the front of e. The guide body 1
No. 4 is arranged with a gap A provided between it and the facing surface 11a of the windbreak 11, and the length L1 of the facing surface 14a of the guide body 14 facing the facing surface 11a of the windbreak 11 is the windbreak 11 Is shorter than the length L of the facing surface 11a. The structure of the space section 12 may be, for example, a well-ventilated one such as a net even if it is not a complete space.

FIG. 2 is a plan view of the swing shelf 5 as seen from above. Yuradotana 5, depending on the right side wall and the left side wall, transfer shelf 5
a, a chaff sheave 5b, a Glen sheave 5c, and a Straw rack are supported. In the conventional one, the chaff sheave 5b is formed subsequent to the transfer shelf 5a, but the space 12 is provided after the transfer shelf 5a so that the sorting air can be blown through the space 12 onto the swinging shelf 5. Then, the chaff sheave 5b was provided after that.

[0012] The sorting wind generated from Kara Minoh 6 has a wind ratio of 1
Selection air passages W0, W1, W2 constituted by 1, 13
And is sent in the direction of the swing shelf 5. In order to efficiently use the sorting wind that has passed through the sorting wind passage W0, it is necessary to reliably send the wind to the front end portion of the chaff sheave 5b from which a large amount of grain is dropped. Therefore, the sorting wind guide 9 is provided at the lower end of the transfer shelf 5a. This sorting wind guide 9
, The upper part of the sorting wind from the sorting wind passage W0 is contacted and guided, the lower part thereof is contacted and guided to the upper surface 14b provided on the upper part of the guide body 14, and the middle part of these is It merges with things and is guided to the space 12. The sorting wind that is contact-guided to the sorting-wind guide 9 is contact-guided without being influenced by the swing of the swing shelf 5, so that the transport shelf 5a is provided.
And the sorting air passage W0.

As described above, since the sorting air is blown from the space 12 onto the swinging rack 5, the object to be processed that has been conventionally transferred from the transfer rack 5a and the end of the handling barrel 3 are dropped. The processed objects merged in front of the chaff sheave 5b to increase the processed objects, and the deterioration of the sorting performance and the occurrence of clogging occurred. However, due to the sorting air from the space portion 12, it disappeared and the sorting performance was improved. Greatly improved.

As described above, the length L1 of the facing surface 14a of the guide body 14 is equal to the length L of the facing surface 11a of the wind split 11.
Therefore, the lower part of the sorting wind from the sorting wind passage W0 hits the facing surface 14a of the guide body 14 and is not disturbed, and is smoothly guided by the upper surface 14b. A part of the selection wind guided to the space 12 is surely sent to the space 12a in the front part of the chaff sheave 5b and to the space 12b below the chaff sheave. Space 12
The sorting wind sent in the b direction surely passes between the respective sheaves forming the chaff sheave 5b, so that stable sorting ability can be obtained.

Next, FIG. 3 will be described. At the outlet 16 of the sorting wind from the sorting wind passage W0 configured by the casing 10 and the wind split 11, the end portion 10a of the casing 10 and the end 11 of the wind split 11 in the flow direction of the sorting wind.
In this configuration, b and b are arranged so as to face each other so as to be substantially in the same position. In the conventional wind sorting device, since the end portion 11b of the wind split 11 is located on the upper side when viewed from the flow direction of the sorting wind, the sorting wind is bent downward and is not sent to the front of the chaff sheave 5b, and sorting is performed. The ability was down. However, because of the above-described configuration, the sorting wind goes straight at the outlet portion 16 without curving downward and flows to the front end portion of the chaff sheave 5b.
As a result, the sorting wind is reliably sent to the chaff sheave 5b, and the wind selecting action is efficiently performed.

Next, FIG. 4 will be described. FIG. 4 shows a configuration in which the guide body 14 provided in the front part of the swing net 5e is located between the side wall 11c and the side wall 11d of the wind split 11 and is covered therewith. Due to the rocking motion of the rocking rack 5 in the rocking direction 17, the guide body 14 causes the side wall 11c and the side wall 11d of the wind split 11 to move.
A gap A and a gap B are provided so as not to contact with each other. Thus, the sorting wind from the sorting wind passage W0 does not hit the guide body 14 and is smoothly guided rearward by the side wall 11d. Therefore, since the selection wind is not disturbed, the chaff sheave 5b efficiently performs the wind selection action. Further, the sorting wind from the sorting wind passage W1 below is also smoothly guided rearward by the side wall 11c.

With the configuration shown in FIGS. 3 and 4, the sorting air quantity for the chaff sheave 5b does not change, and the direction of the sorting air for the chaff sheave 5b is constant, so that the sorting ability does not decrease and stable sorting work is performed. Is possible. Furthermore, rather than the length L of the facing surface 11a of the wind split 11,
Since the length L1 of the facing surface 14a of the guide body 14 is shortened, the selection wind does not hit the facing surface 14a of the guide body 14 to be disturbed. Further, since the guide body 14 is provided with the upper surface 14b, the sorting wind is smoothly guided in the direction of the sorting wind guide 9.

[0018]

According to the first aspect of the present invention, the space 12 is provided between the transfer rack 5a and the chaff sheave 5b, and further, the flow direction of the sorting wind is at the outlet of the sorting wind blown from the sorting wind passage W0. End portion 10a of the casing 10 of
And the end portion 11b of the wind split 11 are arranged so as to face each other at substantially the same position in the flow direction.
The sorting wind from the sorting wind passage W0 between 0 and the wind split 11 smoothly and efficiently does not bend downward and is provided in the space 12
It flows to. Therefore, stable sorting work can be performed without lowering the sorting ability. Moreover, since the sorting wind hits the upper surface 14b of the guide body 14 and is smoothly guided to the space portion 12, the sorting performance is further improved. In the invention of claim 2, the guide body
The length L1 of the facing surface 14a of 14 corresponds to the facing surface 1 of the wind split 11
Since it is shorter than the length L of 1a, sorting from the sorting air passage W0
The lower part of the wind hits the facing surface 14a of the guide body 14.
Smoothly without being disturbed by the upper surface 14b
Contact is guided.

[Brief description of drawings]

FIG. 1 is a side view of a threshing device.

FIG. 2 is a plan view of the swing shelf.

[Fig. 3] Detailed view of sorting air passage

[Fig. 4] Detailed view of sorting air passage

[Explanation of symbols]

W0 ... Sorting air passage, W1 ... Sorting air passage, W2 ... Sorting air passage, A
... Gap, B ... Gap, L ... Length, L1 ... Length, 1 ... Threshing device, 2 ... Handling chamber, 3 ... Handling barrel, 4 ... Handling barrel receiving net, 5 ... Swing rack,
5a ... Transfer rack, 5b ... Chaff sheave, 5c ... Glen sheave, 5d ... Stroke, 5e ... Swing net, 6 ... Kara,
7 ... first helix, 8 ... second helix, 9 ... sorting wind guide,
10 ... Casing, 10a ... Terminal part, 11 ... Wind split, 11
a ... Opposing surface, 11b ... Terminal part, 11c ... Side wall, 11d ...
Side wall, 12 ... Space part, 13 ... Wind split, 14 ... Guide body, 1
4a ... Opposing surface, 14b ... Upper surface, 15 ... Cross flow fan,
16 ... Exit part, 17 ... Swing direction.

Claims (2)

(57) [Claims] 1. A threshing room 2 provided in a threshing device 1 has:
A handling barrel 3 for threshing the grain culms sent by the transport device is mounted on a shaft, and a swinging shelf 5 for swinging and selecting is provided below the handling chamber 2, and below the swinging shelf 5. At the position, the Karato 6 is provided on the upper side in the sorting wind feeding direction, the upper and lower wind splits 11 and 13 are provided at the sorting wind outlet of the Karato 6 and the most spiral 7 is further provided on the lower side in the sorting wind feeding direction. In the threshing device 1 in which the second spiral 8 is provided on the lower side of the number spiral 7 in the sorting wind feeding direction, the rocking shelf 5 has a space 12 and a chaff sheave 5 between the transfer shelf 5a and the chaff sheave 5b.
The guide bodies 14 located on the front side of the rocking net 5e located below b are provided respectively, and the wind is blown from the Karato 6 and from the sorting air passage W0 between the casing 10 and the upper windbreak 11. At the outlet of the sorting air to be blown out, the end portion 10a of the casing 10 and the end portion 11b of the air split 11 in the flow direction of the sorting air are arranged so as to face each other at substantially the same position in the flow direction. 11, a gap A is provided between the guide body 14 and the guide body 14, and an upper surface 14b is provided at an upper portion of the guide body 14 to guide the sorting wind blown out from the sorting wind passage W0 upward toward the rear. A thresher wind-selecting device. 2. The wind selecting device of the threshing machine according to claim 1, wherein the length L1 of the facing surface 14a of the guide body 14 is shorter than the length L of the facing surface 11a of the windbreak 11.