JPH09224464A - Free grain over rack separation device in thresher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a free grain over rack separation device in a thresher for separating free grains over a rack on a root side by scraping action, suppressing the transfer of the grains to a processing barrel chamber side as much as possible and improving a sorting property for which many holes communicating with a grain swinging sorting body at a lower part are pierced on a lower lip plate. SOLUTION: A grain culm transfer path is formed parallelly to the axial direction of a scraping barrel 3, the grain swinging sorting body is disposed inside a sorting chamber 8 at the lower part freely swingably in a back and forth direction and many holes 5c communicating with the grain swinging sorting body at the lower part are pierced in a surface area equivalent to the back and forth width of a dust sending port 11 opened at the terminating part on an ear tip side of a scraping chamber 1 on the lower lip plate 5 fitted on the root side of the scraping chamber 1 where the scraping barrel 3 is pivotally disposed. Also, it is preferable to erect a guide 5a for partitioning many holes 5c to the front and back in the surface area of the lower lip plate 5 where many holes 5c are pierced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clam grain separating device in a threshing machine, and more specifically, treating the clam grain on the root side generated in the process of threshing on the terminal side of the handling cylinder facing the dust inlet. As well as separating by combing with teeth, the separated particles scattered by the impact on the handling tooth are dropped on the grain swinging sorting body below the multiple holes drilled in the lower lip plate provided on the root side, The transfer of grains to the processing cylinder chamber side is suppressed as much as possible to prevent the loss of grains used for specific gravity selection, and the damage to the grains due to the impact of the processing cylinder is reduced as much as possible, thus improving the sorting performance. The present invention relates to a clam grain separating device in a threshing machine that can be used.

[0002]

BACKGROUND OF THE INVENTION When threshing efficiency increases, grain culms containing clam grains are generated in the process of threshing work. Especially, when the grain side is mixed with clam grains, an automatic grain culm feeder (feed chain) With the rotation of No. 3, it was likely to be taken out to No. 4 as it was, and there was a problem that the grain used for specific gravity selection was lost. On the other hand, the clam grains mixed in the stocker side are easily guided from the stocker side to the tip side by the rotation direction of the handling cylinder, are sent to the processing cylinder chamber from the dust inlet and are subjected to the second impact by the processing cylinder. Therefore, there was a problem that caused damage to the grain.

[0003]

SUMMARY OF THE INVENTION The present invention was devised in view of the above situation to solve the conventional problems, and the intent thereof is to obtain a strain produced in the process of threshing work. The clams on the original side are separated by the combing action of the teeth on the terminal side of the handling cylinder facing the dust inlet, and the separated particles scattered by the impact of the teeth are placed on the lower lip plate on the plant side. It is dropped on the grain swinging sorting body below the many drilled holes to prevent the grain from being transferred to the processing cylinder chamber side as much as possible to prevent the loss of the grains used for specific gravity sorting, and An object of the present invention is to provide a clam grain separating device in a thresher capable of reducing the damage of grains due to impact as much as possible and improving the sorting performance.

[0004]

In order to solve the above-mentioned problems, the first technical means adopted by the present invention forms a grain culm transfer path parallel to the axial direction of the handling cylinder, and a sorting chamber below it. In a thresher in which a grain swinging selection body is erected freely in the front-back direction, the lower lip plate provided on the stocker side of the handling chamber on which the handling barrel is mounted is installed at the tip end side of the handling chamber. The second technical means is characterized in that a large number of holes communicating with the lower grain rocking sorting body are formed in a surface area corresponding to the front-rear width of the opened dust delivery port. In the surface area of the lower lip plate, a guide for partitioning the large number of holes into front and rear is provided upright.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In FIG. 1 to FIG. 3, reference numeral 1 is a thresher handling room, and the handling room 1 is a front wall 1a,
It is formed so as to be surrounded by the rear wall 1b, the ceiling wall 1c and the receiving net 2, and inside thereof, a handling cylinder 3 is mounted between the front wall 1a and the rear wall 1b. The receiving net 2 is stretched from the starting end side to the terminating end side of the handling chamber 1, and its upper surface has partition plates 2a, 2 having different heights with a required interval in the front-rear direction.
a,. . . Is erected and faces the handle teeth 3c of the handle barrel 3. The handle teeth 3c on the terminal side are planted so as to transfer the grain stalks in the opposite direction (returning to the front side) with a required receding angle. Further, a grain culm transfer path (handle mouth) 6 is formed between the upper lip plate 4 and the lower lip plate 5 on the side wall 1d of the stock room side of the handling room 1, and along the grain culm transfer path 6 An automatic grain culm feeder (feed chain) 7 is provided. The handling cylinder 3 is divided into two parts in the front-rear direction, and is configured as a differential ratio type handling cylinder in which the front side handling cylinder 3a rotates at a low speed and the rear side handling cylinder 3b rotates at a high speed. When the total width of the handle cylinder 3 in the front-rear direction is 100%, the width of the front handle cylinder 3a is 45%.
%, And the width of the rear side handling cylinder 3b is set to 55%.

A sorting chamber 8 is formed below the handling chamber 1, and a grain culm feed guide plate 9 is provided at the front end of the receiving net 2 of the handling chamber 1 located above the sorting chamber 8. It has been extended.
Reference numeral 10 is a grain culm supply port, 11 is a dust delivery port opened to the tip end side of the handling chamber 1, and the dust delivery port 11 is provided on the lower lip plate 5.
Guides 5a, 5b for partitioning the grain culm transfer direction into front and rear are provided upright in a surface area corresponding to the front-back width of the guides 5a, 5
Between b, a large number of relatively large holes 5c communicating with the grain rocking / sorting body 12 erected in the sorting chamber 8 parallel to the axial direction of the handling cylinder 3 and swingable back and forth are formed. Reference numeral 5d is a flow plate that guides the grains protruding from the hole 5c onto the lower grain swinging and selecting body 12. Reference numeral 13 denotes a processing cylinder chamber formed by being connected to the handling chamber 1. In the processing cylinder chamber 13, a processing cylinder 14 has a starting end side facing the dust inlet 11 and an end side facing rearward. It is hung. Reference numeral 13a is a receiving net of the processing chamber 13.

On the other hand, the grain swinging / selecting body 12 comprises a grain transporting plate 15 and a swinging / sorting mechanism 16 connected to the grain transporting plate 15, and the grain transporting plate 15 is located below the starting end of the receiving net 2 of the handling chamber 1. From below to near the lower part of the dust inlet 11
The swing selection mechanism 16 extends upward from the end of the grain transfer plate 15 below the dust-sending port 11 to below the middle part of the net 13a of the processing chamber 13 in a swing sheave 1.
7, and a retan pan 18 having its end side above the swing sheave 17 facing the lower side of the receiving net 13a of the processing chamber 13 and being installed in an upward slope in parallel with the swing sheave 17.
And the Glen sheave 20 which is installed under the swing sheave 17 so as to face upwardly from the mouth No. 19 and is constructed in an upward slope shape.
And the wind selection chamber 2 further rearward from the end of the Glen sieve 20
The rack 22 extending in the upward slope shape toward 1 constitutes a multi-stage swing selection shelf. The grain transfer plate 15 is formed of a corrugated plate having no holes, the swing sheave 17 is formed by equidistantly forming fins in the front-rear direction, and the re-tan pan 18 has a corrugation having a half hole on the starting end side. The fins are formed of a plate-like member, and the other half of the terminating end side is erected at equal intervals in the front-rear direction, but the fin intervals are narrower than the fin intervals of the swing sheave 17.

Reference numeral 23 denotes a sorting wind passage formed below the grain swinging sorting body 12, and the start end side of the sorting wind passage 23 has a Karako (compressed air fan) rotating counterclockwise (arrow direction). Two
4 is provided, the discharge side of which faces the wind-selecting chamber 21 rearward in the axial direction of the handling cylinder 3, and a counterclockwise direction is provided below the dust collecting chamber 25 formed in the wind-selecting chamber 21. A cross-flow fan (suction fan) 26 that rotates in the (arrow direction) is provided. Reference numeral 27 denotes a sirocco fan disposed between the first opening 19 and the second opening 28. The sirocco fan 27 rotates in the clockwise direction (arrow direction) to move the rack 22 from the end side of the swing sheave 17. The wind selection room 21
It acts to blow it to the side. 29 is a fried cylinder,
Reference numeral 30 denotes a No. 2 reduction cylinder, the discharge side of which faces the grain transfer plate 15. Reference numeral 31 is a culm transporting device, and 32 is a culm cutting device.

Next, the operation of the present invention constructed as above will be described. Now, the grain culm which is supplied from the grain culm supply port 10 through the grain culm supply guide plate 9 into the handling chamber 1 by the grain culm automatic supply device 7 includes the front side handling barrel 3a and the rear side handling barrel 3a of the handling barrel 3. The mixture of grains and straw chips, which have been threshed by the rotation of the barrel 3b and leaked from the mesh of the receiving net 2, falls on the grain transfer plate 15 and the base end side of the swing sheave 17. Then, the dropped mixture is subjected to a wind-selecting action by the pressure air discharged from the Karato 24 while being gravity-sorted by the front-back swinging motion of the grain swing-sorting body 12 while being swing-transferred toward the tip side, and the upper layer Straws with a small specific gravity that have floated to the air are blown off into the wind-selecting chamber 21, sucked by the cross-flow fan 26 and discharged to the rear outside the machine, and the grains with a large specific gravity that sink to the lower layer are the gaps between the fins of the swing sheave 17. Since the grains that have fallen onto the grain sieve 20 from the above are wind-selected by the compressed air that blows from below the grain sieve 20, the fine grain that does not contain impurities is collected at the 1st port 19.

On the other hand, from the dust inlet 11 of the handling chamber 1 to the processing chamber 1
The culms discharged to No. 3 are processed by the rotation of the processing cylinder 14 and fall from the receiving net 13a onto the lower return pan 18. The fallen mixture comes from the rocking motion of the grain rocking and sorting body 12 and the Karamu 24. The straw dust having a small specific gravity is blown into the wind-selecting chamber 21, and the grains having a large specific gravity fall through the fin gaps of the re-tan pan 18 onto the swing sheave 17 below, and the swing sheave 17 further. From the gap between the fins of the above, it falls on the lower Glen sieve 20 and is collected at the No. 1 port 19. Further, the long straws fall on the rack 22, but the long straws are blown to the dust pipe 25 side formed in the wind selection chamber 21 by the compressed air of the sirocco fan 27 blown from the lower side of the rack 22 and cross. It is sucked by the flow fan 26 and discharged to the rear outside the machine.

In the process of the above threshing selection work,
When the threshing efficiency increases, grain culms containing clam grains are generated, but when the grain is mixed especially on the root side of the plant, the grain culm will remain as it is with the rotation of the grain culm automatic feeder 7. Since it is brought out to the side of the number opening 33, the grain used for the specific gravity selection is lost. However, in the present invention, the lower lip plate 5 on the stocker side has guides 5a, 5 for partitioning the grain culm transfer direction back and forth in a surface area corresponding to the front-back width of the dust inlet 11.
b is erected, and a relatively large hole 5c is provided between the guides 5a and 5b so as to communicate with the lower grain rocking and sorting body 12, and the handle tooth 3c on the end side, that is, The handle teeth 3c planted in a portion corresponding to the front-rear width of the dust delivery port 11 are planted so as to transfer the grain culms in the opposite direction (returning to the front side) with a required receding angle. When the transferred grain culms rub against the upper ends of the guides 5a and 5b, carding is sufficiently performed by the handle teeth 3c, and the carding action by the terminal side handle teeth 3c while exhibiting a pulsating state. Will be received. As a result, the clam grains mixed in the stocker side are separated, and at the same time, the handling teeth 3
The separated particles scattered by the impact of c are guided by the flow plate 5d through the hole 5c formed between the guides 5a and 5b, and fall on the lower grain culvert moving sorting body 12 to be used for the specific gravity sorting. Become. Therefore, it is possible to suppress the transfer of the grains from the dust sending port 11 to the side of the processing cylinder chamber 13 as much as possible, and it is possible to prevent the loss of the grains used for the specific gravity selection. Grain damage can also be reduced as much as possible.

FIGS. 4 and 5 show another embodiment of the thresher, and the difference between this and the thresher is that the conical portion 3'formed at the starting end of the handling barrel 3 is different. An entrance plate 3 ″ is provided on the lower peripheral surface in an inclined shape, and a grain culm supply guide plate 9 is provided in front of it.
And the elongated hole 9a in the grain culm supply guide plate 9
A plurality of rows in the vertical or horizontal direction, and a sirocco fan 27 'rotating counterclockwise (in the direction of the arrow) is horizontally installed in the space between the opening and the starting end of the grain rocking sorting body 12 located therebelow. The other configurations are the same. Therefore, if this type of threshing machine is adopted, the straw dust and scattered particles generated during threshing by the suction wind of the sirocco fan 27 'are sucked from the elongated holes 9a and sent toward the rear wind-selecting chamber 21 side. At the same time, the rough selection action for the leaked substances from the receiving net 2 is promoted, which can contribute to the improvement of the sorting performance.

6 to 8 show still another embodiment of the threshing machine. The difference between this and the threshing machine shown as the other embodiment is that the grain culm feed guide plate 9 is provided. In addition to opening the elongated holes 9a in a lateral direction in a plurality of rows of louvers,
A sirocco fan 27 'that rotates clockwise (in the direction of the arrow) is placed below it and in front of the starting end portion of the grain rocking / pulling body 12, and the rest of the configuration is the same. . Therefore, if this type of threshing machine is adopted, the grain culm supply port 10 is controlled by the pressure of the sirocco fan 27 '.
An air curtain can be formed to prevent blowout of straw dust and scattered particles, and even if there are scattered particles that have blown out, they can be caught by the louver of the elongated hole 9a and blown back, and the entrance plate It is possible to promote the backward movement action for the 3 ″ accumulated material, which can contribute to the improvement of the sorting performance.

[0014]

As is apparent from the above description, the present invention forms the grain culm transfer path parallel to the axial direction of the handling cylinder,
In a thresher in which a grain swinging sorting body is erected freely in the front-rear direction in a sorting chamber below the sorting chamber, the lower lip plate provided on the stocker side of the handling chamber on which the handling cylinder is mounted is A guide that separates the grain culm transfer direction into front and back is erected in a surface area corresponding to the front-rear width of the dust inlet opening at the end portion on the tip side, and a large number of grains that communicate with the grain flicker sorting body are provided between the guides. The clams on the stocker side generated during the process of threshing are erected on the handle teeth on the terminal side of the handle barrel facing the dust inlet and the lower lip plate of the handle chamber. And the separated guide particles that are separated from each other by the combing action of the handling teeth performed between the guides, and the separated particles scattered by the impact of the handling teeth are below the holes formed between the guides. It can be dropped to the top and the transfer of the grain to the processing chamber side can be suppressed as much as possible, therefore,
It is possible to prevent the loss of the grains used for the specific gravity sorting, reduce the damage of the grains due to the impact of the processing cylinder as much as possible, and improve the sorting performance.

[Brief description of drawings]

FIG. 1 is an overall side view of a thresher showing an internal configuration as seen through.

FIG. 2 is a front view of the same.

FIG. 3 is a perspective view of the lower lip plate

FIG. 4 is a side view of the essential parts of another embodiment of the threshing machine showing the internal structure in a see-through manner.

FIG. 5 Same as above

FIG. 6 is a side view of a main part of a threshing machine according to still another embodiment of the present invention, showing the internal structure thereof in a see-through manner.

FIG. 7 is a plan view of the same.

FIG. 8 is a sectional view of a grain culm supply guide plate.

[Explanation of symbols]

 1 Handling Room 3 Handling Body 5 Lower Lip Plate 5a Guide 5a Guide 5c Hole 11 Dust Port 12 Grain Swing Sorter

Claims (2)

[Claims] 1. A thresher in which a grain culm transfer path is formed parallel to the axial direction of the handling cylinder, and a grain swinging and sorting body is erected in a sorting chamber thereunder so as to be swingable in the front-rear direction. The lower lip plate provided on the stocker side of the handling room on which the box is mounted has a lower grain swinging sorting body in the area corresponding to the front-back width of the dust inlet opening at the tip end of the handling room. A clam grain separating device in a thresher, which is characterized in that a large number of holes communicating with the above are formed. 2. The surface area of the lower lip plate having a large number of holes,
The clam grain separating device in a threshing machine according to claim 1, wherein a guide for partitioning the plurality of holes into front and rear is provided upright.