KR930002317Y1 - Thresher - Google Patents

Abstract

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Description

Oscillation sorting device of threshing device

The figure shows an embodiment of the rocking | throwing-down sorting apparatus of the threshing apparatus which concerns on this invention,

1 is a longitudinal side view of the threshing apparatus.

2 is an enlarged longitudinal side view of the main part.

3 is an enlarged perspective view showing a grain pan.

4 is a side cross-sectional view of the main portion of the grain pan in the retirement tax in another embodiment.

FIG. 5 is a side sectional view of the main part in the protruding posture of the grain pan in another embodiment according to FIG. 4; FIG.

* Explanation of symbols for main parts of the drawings

1: sudden room 2: sudden

3: water net 8: fixed grain fan

17: movable grain pan 9,90: grain save

9a: vertical lattice section 9b: horizontal lattice section

9c: Leakage opening

The present invention is a rocking sorting device of threshing apparatus, which is mainly used in a combine, and has a feeding chamber, a barrel accommodated in this feeding chamber, and a water pipe installed along the lower side of the barrel. Grain pans for conveying the processed materials coming back from the bottom of the above-mentioned grain pans while sorting the processed materials returned from the grain pans. The oscillation screening device having a sieve and the like.

As one of these kinds of swing screening apparatuses, there is one known from Japanese Patent Laid-Open No. 59-175819.

In this device, when the amount of the processed material is large, the grain tends to be concentrated in the lower layer of the processed material layer by gravity discrimination, or the amount of generated straw crumbs, such as at the time of threshing, is small, and when the straw crumbs are difficult to be mixed in the lying grain In order to improve the efficiency of grain recovery, grains with a large mesh width are selected.On the contrary, due to the small amount of the processed materials, the specific gravity discrimination is not sufficiently achieved. When grains and straw crumbs are mixed and transported, When the amount of straw crumbs is generated so that straw crumbs are easily mixed in the grains, grains having a small mesh width are selected for the purpose of increasing the sorting accuracy.

However, in the apparatus configured in this way, when the grain size having a large mesh width is selected when the amount of the processed material is large, it is inherently dropped in the rear portion of the grain saved in which the processed material easily flows down by the action of dispersing the processed material along with the conveyance. It is said that straw crumbs which should not be broken easily fall down.

In addition, even when a grain size having a smaller mesh width is selected, for example, when the amount of the processed material is small, there is a disadvantage that stray chips and the like fall at the rear of the grain saved where the processed material is further reduced.

In order to prevent this, even if the mesh width is made smaller, the screening performance is lowered.

Furthermore, as a separate conventional rocking screening device, there has been a structure in which the lying area of the grain save is adjustable in accordance with the amount of processing water, as disclosed in, for example, Japanese Utility Model Publication No. 64-11645.

This device improves the screening ability by increasing the surface area when the volume of material supplied to the grain save is high, and improves the performance of the surface area, and reduces the surface area by reducing the surface area of the straw flakes when the amount of the material is low. While it is possible to increase the screening accuracy by suppressing it, the point of overall maximization, including threshing on wet crops, is still insufficient.

In particular, in recent years, especially when the farmers working on the combine harvesting the combine, due to the time commitment (for example, only on Saturdays and Sundays) that workers who can handle the combine can be engaged in harvesting, etc. You may have to work after the rain or early morning when morning dew is left. When threshing is performed on such wet crops, sufficient efficiency cannot be obtained with the conventional rocking shaker.

The biggest problem of the sorting device in the threshing device for wet crops is the clogging of the grain save by attachment of straw crumbs, and one method of suppressing this is to increase the grain width of the grain save. It is thought.

However, when the mesh width is increased, the leakage performance is improved and the eyes are hard to be clogged, and grain laying is performed well. On the other hand, the amount of straw crumbs is naturally increased, resulting in the inconvenience of lowering the selection accuracy. It is not advisable to use grains of grain size with a large grain width of grain sieve in consideration of threshing only.

It is therefore an object of the present invention to provide a rocking sorting apparatus that can solve the above-described waste, improve the sorting ability, sorting accuracy, and also thresh the small crops well.

In order to solve the above problems, in the present invention, the grain sieve forms a mesh portion having a large mesh width in the front region, and forms a mesh portion having a small mesh width in the rear region, and the grain pan includes a fixed grain fan and It is composed of a movable grain fan that can cover the upper surface of the grain save while moving rearward from the fixed grain fan, and the surface area of the grain save can be changed by moving the movable grain pan back and forth.

According to the above arrangement, when the amount of the processing water flowing is large, the screening capability is secured by using both the front region and the rear region of the grain save. In addition, when the amount of processing water flowing out is small, only the rear area of the grain save is used, and the processing water is small so that it is easy to fall off, such as cutting straws, and these are discharged to the rear discharge port by the fan wind. Will be carried. Furthermore, in the case of treating wet crops, the screening operation can be carried out while suppressing clogging by using both the front region and the rear region of the grain save, in consideration of the high leakage resistance of the wet crop.

The above is divided into various processed materials and explained in more detail. (A) When the amount of processed material supplied to the grain save wares is high at the time of harvesting the rice, the movable grain pan is retracted to the front to lower the grain save. Make the area large enough.

At this time, before being fed to the grainsave, the processed material is subjected to specific gravity discrimination during the swing transfer by the grain pan, and the grains are separated and settled to the lower layer of the processing layer. Leaving smoothly or efficiently from a large leakage opening.

The straw crumbs in the upper layer are conveyed to the rear without being laid down almost at the front of the grainsave and are loaded on the grainsave, but since the mesh width of the ladle openings at the rear of the grainsave is small, there are few straw flakes here. .

(b) Grain pans are not effectively separated by the grain pan when the yield of the processed product to the grain save is small even in the same rice field, and the grain does not settle down to the lower layer of the treated layer. The movable grain pan is pushed backwards to block the large mesh opening in the front of the grainsave and to prevent the straw flakes from leaking here.

At this time, the grains are sorted by a small amount of lagging, but the amount of remaining lagging does not occur because the amount of grain as a whole is small.

(c) When harvesting barley, move the movable grain pan to the rear and sort by only the small mesh openings located behind the grain save.

At this time, the grains of barley are more likely to fall than the grains of rice, so that even small mesh widths can be effectively laid down, while the straws of straw flakes, which are more common than rice, are suppressed by the small mesh width. do.

(d) For threshing on wet crops during rainy harvests or early morning harvests with dew, the mesh width is located in front of the grainsave by moving the movable grain pan forward and preferably to the foremost front. This large leakage opening is made available.

By setting in this way, although the sorting precision deteriorates to some extent, the clogging at least at the grain save is avoided, and continuous operation is attained.

Furthermore, in the preferred embodiment of the present invention, when the grain sieve is manufactured by integral molding of ultra high molecular polyethylene, the wet treated material is more difficult to adhere to the grain sieve during threshing on wet crops, and It is easy to peel off even if it is attached, and it becomes effective to prevent clogging.

Moreover, when the upper surface of the longitudinal and horizontal lattice (mesh) portions forming the leak openings of the grains is made into a convex surface, the adhesion of straw crumbs is less likely to occur, and the effect of preventing clogging is further enhanced.

As described above, according to the sorting device according to the present invention, the leakage characteristic of the grain save can be preferably changed and adjusted according to the type of crops (rice and barley) and the amount of crops supplied, and the sorting ability and the sorting precision are improved. In addition to improving the wet threshing performance, even after rain or harvesting early in the morning can be carried out as a continuous operation.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the threshing apparatus makes a difference between the threshing part A, the sorting part B, the collection | recovery part C, and the 2nd water reduction part D. As shown in FIG.

The threshing part A axially fastens the barrel 2 in the barrel chamber 1, and the water receptacle 3 is extended along the lower side of the barrel 2, and the grain stem conveyed by the feed chain 4 is held. Is scraped and processed by a barrel, and the processed material is laid down on the sorting part (B).

In addition, the above-mentioned water net 3 is used as an integral chuck molded article of ultra high molecular weight polyethylene having excellent wear resistance and water repellency, and is forcibly vibrated along the circumferential direction.

The sorting unit (B) is composed of a rocking sorting device (5) and a pan (6) for sending sorted products to the rocking sorting device (5).

The swing selector 5 described above is provided with a grain-save 9 continuously at the rear of the grain pan 8 and the rear of the grain pan 8 across the left and right walls of the frame 7 made of a rocking material. ), And the straw racks 10 and 11 of the upper and lower stages are installed back and forth.

Then, the workpiece is laid down from the above-described water net (3), and passed through the front grain pan (15) and the front straw rack (16) to stop the processed material sorted into large particles by the grain pan (8), After oscillating transfer to the rear grainsave 9, rocking transfers backwards while sorting the leaks in the grainsave 9 and discharges the booties to the rear end.

On the other hand, the treated matter discharged from the rosin port 1a of the feeding chamber 1 is stopped at the upper row rack 10 and the sieve line 100a disposed below it, and is stopped while performing the dispersion process and the leakage sorting process. Rotate and transfer to the lower straw rack 11, and the remaining straw crushed again from the lower straw rack 11 to discharge the remaining straw crumb from the rear end to the outside.

Reference numeral 12 denotes an exhaust fan for sucking and discharging fine straw crumbs generated in the sorting unit B to the outside of the air.

The above-mentioned reference numeral (C) is discharged from the rear end of the first water recovery portion (B) and the grain save (9) for recovering the rice laid down by the grain save (9), or the straw rack (10) (11). It consists of the 2nd water collection part 14 which collect | recovers the rice etc. which have been laid down from here.

The first collection unit 13 is provided with the first screw 13a for conveying the recovered first article to one side, and the second collection unit 14 for returning the recovered second article to one side. The burn screw 14a is provided.

Then, the second water reduction unit (D) is a second material sent from the second screw (14a) after the impact reprocessing in the rotary material handling case 20, and then raised by the screw u conveyor 21 It is configured to return to the grain pan 8 of the swing selector 5.

As shown in FIG. 2 and FIG. 3, the grain sieve 9 is formed of an integrally formed of ultra high molecular weight polyethylene resin in the same manner as the water net 3, and has a semi-circular cross-sectional shape on the upper surface thereof. A plurality of vertical lattice sections 9a and a horizontal lattice section 9b group intersecting the block curved surface of the cross section form a rectangular leak-opening opening 9c group.

Then, the mesh width of the leak-opening opening 9c is, for example, a 15 mm angle in the front portion x, a 13 mm angle in the middle portion Y, and a 9 to 11 mm angle in the rear portion z. Likewise, the mesh width is set smaller toward the rear side.

In addition, between the grain sieve 9 and the grain pan 8 described above, a movable grain pan 17 which slides back and forth while slidingly sliding on the upper surface of the grain sieve 9 is arranged.

The movable grain fan 17 is forced to retreat in the true direction by the spring 18, and is pulled out rearward by the air 19 which is operated from the outside of the threshing apparatus. It is designed to retreat in the front (x) area so that it can increase or decrease the area when it is pressed.

The above-described movable grain pan 17 is retracted as far forward as possible when there is a large amount of processing water at the time of harvesting rice, and during wet threshing (rice and barley), so that the front portion (x) and the middle portion of the grain save 9 are (Y) and the rear part (z) are pressed, and when the barley is harvested, the movable grain pan (17) is moved backwards to move the middle part (Y) and the rear part (z) of the grain save (9). If you do it.

Moreover, it adjusts so that only a part of front part (x) may be blocked depending on the amount of process material.

The above-described movable grain save 17 can be artificially controlled back and forth, and can also be automatically controlled by using an actuator that operates in accordance with the amount of processing water in the grain selection black.

In the case of using the actuator, the wet grain pan 17 may be periodically moved back and forth to clean the upper surface of the grain save 9 during wet threshing.

As shown in FIG. 4 and FIG. 5, the said grain pan 8 is comprised by the variable length of the full length which the position of the back end of its action adjusted to the advance direction, and the said grain sieve 90 is mentioned. Sets the mesh width of the first half portion 91 and the mesh width of the second half portion 92 small.

The grain sieve 90 is constituted as an integrally molded article of ultra high molecular weight polyethylene having excellent wear resistance and water repellency.

Then, the grain pan is a slide type movable grain which is moved in the front-rear direction between the fixed grain pan 8 fixed to the frame 7 and the upper and lower sides of the fixed grain pan 8 and the grain save 9. And a rear end of the movable grain fan 17, and the front and rear slides and the position fixing from the rear end of the fixed grain fan 8 to the eye of which the mesh width of the grain save 90 changes. This is to be maintained.

The slide operation of the movable grain fan 17 is performed by the operation lever 100 of the control unit (not shown).

To explain the operation, when there is a large amount of processing material that is released from the front straw rack 16 or the like, the moving grain fan 17 is moved to the ingress particle rate (state of FIG. 4) which moves forward, and the mesh width is large. It is operated to allow the selection of the workpiece from the grain-save first half 91 and, when the amount of the workpiece is small, the mesh of the movable grain pin 17 is moved to the protruding posture (posture of FIG. 5). It is to be selected only in the second half of the grain-saving width.

Moreover, according to the quantity of a process material, the protrusion amount of the movable grain pan 17 can be adjusted suitably, and the sorting degree can also be added or decreased.

Claims (4)

A rocking sorting device for a threshing device comprising a feeding chamber 1 and a barrel 2 accommodated in the feeding chamber and a receiving net 3 installed along the lower side of the barrel, the swing sorting device being lowered from the receiving net 3. It is installed at the rear of the grain pan that sorts the processed materials according to the specific gravity difference and the rear of the grain pan which sorts out the processed materials conveyed from the grain pan, and sorts out the processed materials conveyed from the grain pan. In having grain sieves (9) (90), the grains (9) (90) described above form a mesh portion having a large mesh width in the front region, and a mesh width in the rear region. It forms a small mesh portion, and the grain pan is movable grain which can cover the upper surface of the grains 9 and 90 by moving backward from the fixed grain pan 8 and the fixed grain pan. It consists of 17, hameuroseo moving said one movable grain pan (17) back and forth oscillating screening device, characterized in that the nuha area of the grain sieve (9) (90) changes. The rocking separator according to claim 1, wherein the grains (9) are integrally formed so that the mesh width thereof is continuously reduced from the frontmost region to the rearmost region. The grain grating (9) according to claim 1, wherein the grain sieve (9) is configured to intersect the longitudinal grating portion (9a) and the horizontal grating portion (9b) to form a spherical leak-opening opening (9c). A rocking sorting device, characterized in that the upper surface of 9a) and the transverse lattice portion 9b are formed as a convex curved surface. The rocking separator according to any one of claims 1 to 3, wherein said grain sieve (9) is an integral molded product of ultra high molecular weight polyethylene.