KR880000939B1 - Threshing apparatus - Google Patents

Abstract

The threshing appts. comprises several rotary members (3) each with several threshing teeth (10). The rotary members are rotatable on parallel axes (P) and extend in the direction of movement of the reaped crop. The reaped crop is fed in by a feed chain (1) and placed in a straight posture in a direction normal to the axes when in contact with the rotary members. The threshing teeth of adjacent rotary members have addendum circles overlapping one another in a direction parallel to the axes. The threshing teeth are adjacent a crop feed opening and are inclined in plan view, so that the teeth closer to the ears of the crop are progressively downstream in the direction of movement of the reaped crop.

Description

Threshing device

1 is a simplified longitudinal cross-sectional view of a combine equipped with a threshing apparatus according to one embodiment.

2 is an enlarged sectional view taken along the line (II)-(II) of FIG.

3 is a cross-sectional view taken along the line (III)-(III) of FIG.

4 is a longitudinal sectional view of main parts of the threshing apparatus according to another embodiment.

5 is a cross-sectional view taken along the line (V)-(V) of FIG.

FIG. 6 is a cross-sectional view according to FIG. 5 showing a blank example according to the embodiment shown in FIG. 4. FIG.

7 is a longitudinal sectional view of main parts of the threshing apparatus according to still another embodiment.

8 is a perspective view of the threshing rotating body of the apparatus shown in FIG.

9 is a schematic longitudinal sectional view of a combine equipped with a threshing apparatus according to another embodiment.

10 is an enlarged cross-sectional view taken along line (X)-(X) of FIG.

FIG. 11 is an enlarged sectional view taken along the line (XI)-(XI) of FIG. 9. FIG.

12 to 14 are schematic sectional views showing a state of use of the threshing apparatus shown in FIGS. 9 to 11;

FIG. 15 is a schematic longitudinal sectional view of a combine equipped with a threshing apparatus according to yet another embodiment. FIG.

FIG. 16 is an enlarged cross-sectional view of the (XVI)-(XVI) line in FIG. 15. FIG.

FIG. 17 is an enlarged sectional view of the (XVII)-(XVII) line in FIG.

* Explanation of symbols for main parts of the drawings

1 carrier chain 3 threshing rotating body

10: threshing tooth 11: storage net

21, 22: dust discharge opening p: shaft center

The present invention relates to a threshing apparatus having a plurality of threshing rotating bodies arranged in parallel, in particular, a threshing apparatus having a structure in which the processed grain section is threshed by the rotating body while being conveyed in parallel with the rotational center axis of the threshing rotating body. It is about.

Single and multi-body threshing devices, in which the grain stem is conveyed in parallel to the axis of rotation of the threshing rotor in a threshing device assembled with a harvesting threshing machine called a combine or other type of harvester. Is known.

These well-known threshing apparatuses are equipped with the threshing body of comparatively large diameter, and the semi-cylindrical storage net curved along this threshing body circumference.

The processed grain stem is inserted into a gap between the threshing body and the storage net to take a bow-shaped posture.

The curved grain stem is thus conveyed in parallel to the threshing body shaft center while receiving the threshing action of the threshing body while the bottom portion of the stem is sandwiched as the carrier chain.

Therefore, in the above known threshing apparatus, the grain stem is in a curved posture and abuts the threshing body over its entire length (except the bottom of the stem), so that a strong resistance is applied to the conveyance of the grain stem.

That is, against this resistance, the above-mentioned carrier chain has a structure in which the grain stem is forcibly moved parallel to the threshing body shaft center.

In the threshing apparatus having such a structure, it was difficult to remarkably increase the amount of grain stem processing per unit time.

In recent years, however, there has been a strong demand for seeking a significant improvement in the amount of grain stem processing without increasing the size of the threshing apparatus. It will be apparent from the above description that it is difficult to respond to these demands.

Another distinctive demand for threshing devices mounted on combines, etc., is to reduce the number of threshing chambers incorporating threshing fuselage, especially in the up and down direction, so that the grain tank is extended to the threshing chamber. It is to extend or establish in extension state.

This is to improve work efficiency by loading a large volume of rice well-balanced with respect to the traveling part and reducing the number of times the grain is discharged from the grain tank.

However, in the conventionally known single-body type and multiple-body type threshing apparatus, the diameter of the threshing body was considerably large, and the above-mentioned demand could not be met.

The present invention has been made in accordance with the above-described state, and its main object is to allow a plurality of threshing rotating bodies each having a plurality of threshing teeth to allow rotation in the axial center circumference of the grain stem conveying direction. The shaft centers of the rotating bodies are arranged side by side in parallel with each other so that the grain stems in contact with the rotating bodies are formed in a substantially straight line in a direction crossing at right angles to the rotating shaft axis, and the rotational trajectory of the threshing teeth of the adjacent rotating bodies is It is to provide a threshing device, characterized in that intersecting with each other in one axis direction.

According to the present invention, a plurality of threshing rotating bodies are provided in a plurality in the aeration direction of the grain stem, and these rotating bodies have a rotating shaft and threshing teeth protruding radially from the axis thereof, so that these threshing teeth protrude from the rotating shaft. The length is selected so that it is close enough to the distance to the adjacent rotating shaft surface, and that it does not contact with the surface.

Therefore, the front end of the threshing tooth of any rotating body also passes through the vicinity of the rotation axis of the adjacent rotating body, and the rotational trajectories of the threshing tooth cross each other.

As a result, there are many opportunities for the grain grains to escape, thereby exhibiting an efficient and rapid threshing action.

It is also important that the diameter of these rotating bodies is significantly smaller than the diameter of the threshing body of the conventionally known threshing apparatus.

In using the threshing apparatus of the present invention, the threshing device is rotated while contacting the outside with a plurality of side-by-side rotating bodies installed in a plane shape in the aeration direction of the grain stem as described above in a state where the grain stem is maintained in a substantially straight shape. It is conveyed from the start end side of the rotating body to the end side of the rotating body while being threshed by the tooth.

The space | interval between the cover body which covers the above-mentioned rotating body, and these rotating bodies is determined so that a grain stem may maintain and support the contact state with these rotating bodies from the beginning to the end.

In the case of adopting a structure and a method of moving the grain stem abutting to the lower surface of the rotating body, the above-described lid body can be acted on the storage net used to classify the grain particles as a sieve.

In one embodiment of the present invention, the above-described rotating bodies are arranged at one end, and one of them is arranged so that the arrangement positions of the threshing teeth of the respective rotating bodies are the same.

In another embodiment of the present invention, the arranging positions of threshing teeth of the respective rotating bodies are different from each other at least in the grain stem supply inlet group (that is, the start end).

In other words, the threshing teeth on the abnormal end side of the grain stem (i.e., far from the conveying chain) are positioned below the grain stem conveying direction so that a conveying force with respect to the tip is generated as the threshing teeth rotate.

Therefore, the progress of the tip of the grain is not delayed as compared with the progress of the root portion of the grain stem which is supported and forcibly conveyed as a conveying chain, so that excessive peeling action against the grain stem is prevented and straw crumbs are suppressed. It is convenient for improving threshing efficiency.

In another embodiment of the present invention, the above-described rotating body is arranged in two stages above and below.

The arrangement of the rotary bodies of the respective stages is the same as in the embodiment described first.

The rotation trajectories of the threshing teeth also intersect with each other in the two rotating bodies which differ in the stages to which they belong, and which are vertically adjacent to each other.

In the use of this threshing apparatus, although the grain stem may be brought into contact with the upper surface of the upper rotary body group or the lower surface of the lower rotary body group, it is preferable to let the grain stem pass between the upper and lower ends.

In the latter case, that is, when the grain stem is passed between the upper and lower ends, the threshing teeth act on both the upper and lower sides with respect to the tip of the grain, and thus, the threshing process can be satisfactorily performed without any threshing.

The openings for discharging the straw crumbs generated by the threshing treatment to the outside of the threshing apparatus may be fixedly installed in the storage net portion on the side of the conveying chain. It is convenient because it can be arbitrarily applied to the condition of occurrence of straw crumbs, which varies depending on the operating conditions of the threshing apparatus such as the length, other conditions, and the rotational speed of the rotor.

Specifically, a configuration capable of switching between three types of openings in the storage network portion close to the carrier chain and openings in both of these portions may be combined with any of the above-described embodiments.

The advantage in the case of the structure in which the straw crumb discharge opening cut | disconnected and fixedly formed the storage net part near the conveyance chain is as follows.

In other words, the lower surface of the threshing rotary body group at the lower end can be brought closer to the storage network, and a narrow processing space can be formed therebetween.

Then, the threshing teeth and the stirring action are added to the straw crumbs and the cut tips (secondary sorted matter) passing through the processing space.

Therefore, the secondary treatment of this secondary sorted grain has already started in the threshing chamber, and the threshing efficiency as a whole including the threshing apparatus and the sorting apparatus is remarkably improved.

The rotating shaft of the threshing rotary body may be any of a rod-shaped, a cylindrical, or a rod (drive shaft) inserted into a cylinder.

In either case, the diameter of the rotating shaft (for example, 160-200 mm) is significantly smaller than the diameter of the threshing body in the conventionally known threshing apparatus.

Other objects and advantages of the present invention will become apparent from the description of each embodiment described later.

These examples are not to be construed as limiting the scope of the invention.

First, the embodiment shown in FIGS. 1 to 3 will be described.

As shown in FIG. 1, the grain stem is threshed by the threshing rotating body 3 which is supplied and rotated by the threshing conveying chain 1 to the threshing chamber 2, and the threshing and straw are discharged. A threshing part is comprised so that a threshing conveying chain 1 can be carried out from a threshing chamber 2, and the end rotation chain 4 which carries out threshing and discharge | emission from threshing conveying chain 1 out of a gas is installed in the back of a threshing part. And a sorting unit having a sorting plate 5 freely driven and swinging from the threshing chamber 2 and a key for supplying sorting wind, the threshing chamber 2 Is installed in the lower part of the chamber, and the screw processing conveyor 7 which carries out the primary processing grains from the sorting unit to the outside of the gas and the secondary processing grains from the sorting unit are reduced to the threshing chamber 2 so as to be processed again. Each of the leuco conveyors 8 is attached to the bottom part of the sorting section to combine In and constitute a threshing apparatus.

More specifically, the threshing part is comprised as shown in FIG.2 and FIG.3.

That is, a plurality of threshing rotating bodies 3 formed by attaching rotatably a threshing tooth 10 made of a plate installed in parallel with each other in the circumferential direction and the axial center direction thereof on the rotation shaft 9 are rotatably attached. Each of the rotary shafts P is provided along the grain stem conveying direction by the threshing broadcasting chain 1, and is installed side by side in the key direction of the grain stem at the upper part of the storage network 11, and the threshing rotating body 3 At one end, the gear 53 is provided with a rotary drive gear 52 on each of the rotary shafts 9, and the adjacent drive gears 52 make the same rotation direction of each threshing rotary body 3 with each other. The threshing rotary bodies 3 are rotated in the same direction and rotated in the direction of the arrow A, and the grain stem is rotated while moving between the storage net 11 and the threshing rotary bodies 3. Threshing by action of threshing tooth 10 The object is dropped from the storage net 11.

The parallel spacing L of the threshing rotating body 3 in each of the threshing rotating body 3 is set slightly larger than the sum of the radius of the threshing rotating body 3 and the radius of the rotating shaft 9. Between a pair of threshing rotating bodies 3 and 3 which adjoin each other, one threshing tooth 10 rotates as a state where the front end passes extremely close to the other rotating shaft 9. , The portion of the threshing rotors 3 and 3 where the acting position of the threshing teeth 10 overlaps with the threshing rotor shaft direction is increased so that the storage net 11 is threshed upward. The non-processing space portion S, ie, the space not passing through any threshing teeth 10 of both threshing rotating bodies 3 and 3, formed as a state close to the triangular shape observed from the entire axial direction. Wealth is being made very small.

Next, the embodiment shown in FIGS. 1 and 4 to 6 will be described.

As shown in FIG. 1 and FIG. 4, the grain stem conveyed between the grain stem supply ports 12 and being supported by being interposed in the posture hypothesized as a conveying chain 1 and conveyed inside the threshing chamber 2 is conveyed. The threshing rotating body 3 which ice-fixed the threshing rotating body 3 which fixed the plate-shaped threshing tooth 10 to the drive rotary shaft 9 which holds the shaft center along a grain stem conveyance direction above a path | route in the grain stem aeration direction, All (3) The rotational trajectories are superimposed on each other in the left and right directions, and each threshing rotating body 3 is driven and rotated in a direction A acting in the ear tip direction of the grain stem.

Moreover, the threshing part is comprised in the threshing room 2 lower part by dividing the substantially flat storage net 11 as a filter agent.

In the lower part of the threshing part, the threshing process which leaked the storage net 11 down was received as the rocking | separation sorting plate 5, and a grain etc. are collect | recovered by the rocking | winding and the sorting wind from the key 6, and a grain is gathered. The first process of the bottom of the apparatus is carried out to the outside of the apparatus by the conveying screw right (7), and the reprocessing requires the second process into the threshing chamber (2) by the conveying screw (8). The sorting section is configured to reduce.

In addition, as shown in FIG. 5, the threshing tooth 10 mentioned above is carried out in the threshing chamber 2, and is supported by the several drive rotation side 9 ... And the plurality of drive rotary shafts 9 so as to be located at an intersection point with an inclined virtual straight line directed downward in the conveying direction B of the conveying chain 1 as it is located in the direction away from the conveying chain 1. … It is fixedly installed.

In other words, when viewed in plan, the threshing teeth 10 are formed on the stepped shapes that are shifted downward of the conveying chain 1. Are fixed to the plurality of drive rotary shafts 9.

And a row of threshing teeth 10 arranged in these staircases. It is set as threshing tooth group 3B, and several lines are provided side by side in the grain stem conveyance direction for this threshing tooth group 3B.

The reason why the threshing tooth group 3B described above is stepped as described above is that the threshing tooth 10 does not rotate at a very high speed compared to the conveying speed of the conveying chain 1, but combing. Although it is a little from the root base to the tip of the grain stem, it takes time, and even within this slight time, the root basal portion of the grain stem is conveyed in the conveying direction B, so that simply combing in the longitudinal direction of the grain stem Since the tip is delayed, in this embodiment, the tip is sent to send the tip slightly earlier.

In addition, in the embodiment, as shown in FIG. 6, the threshing teeth group 3B described above may be provided only in a portion close to the grain stem supply port 12 so as to specifically correct the curvature or deformation of the grain at the time of grain loading. .

In addition, the present embodiment may be applied to the threshing rotating body which is installed on both sides of the grain stem conveying path upper and lower side by side, and also applied to the threshing apparatus of the so-called threshing system that supplies the grain stem to the threshing rotating body 3 above. Also good.

The grain stem brought into the threshing chamber as the posture which cannot be said to be the best for threshing treatment by the above-described configuration is stretched by the threshing teeth of the threshing rotating group that is driven and rotated at a very high speed compared to the conveying chain. It is corrected in the best posture by threshing treatment.

As a result, undesired threshing action of the threshing teeth is reduced, resulting in elimination of blemishes such as the occurrence of straw flakes in the threshing chamber or the rolling of the grain to the entire drive rotational axis of the threshing chamber. The overall performance of the device is improved.

Next, the Example shown in FIG. 1, FIG. 7 thru | or FIG. 8 is demonstrated.

It is provided with a threshing tooth 10 which threshes while installing the accommodating net 11 which forms the lower wall of the threshing chamber 2, and rotates toward the ear tip with respect to the ear tip of a grain stem. Rotation of the plate-shaped rotary body 3 as the state where the grain stem hangs in the longitudinal direction and the grain stem conveyance direction of a grain stem, respectively, in the upper and lower sides of the ear tip movement path | route, and it is observed from a grain stem conveyance direction, and is located opposite to the upper and lower sides of a path | route. It is comprised so that threshing process may be performed by installing in threshing chamber 2 in the state which overlaps threshing teeth rotation trace of the whole (3) and (3).

And the rocking sorting plate (5) for sorting and leaking to the bottom while conveying the discharged threshing material and the discharged threshing material discharged from the straw at the end of the threshing chamber and the threshing chamber at the end of the threshing chamber and the sorting plate (5) and sorting Keys 6 which blow air toward the sorting plate 5 are respectively installed to collect grains of grains at the first opening and to collect the third sorted grains such as straw with grains on the second opening. In addition, the straw shavings are discharged from the dust outlet and discharged, and the thin shavings are configured to be sucked out of the apparatus by reflowing across the straw shavings and to be discharged again.

In attaching the above-mentioned rotating body 3, the hexagonal shaft-shaped drive shaft 9 is supported on both the upper and lower sides of the tip end movement path C so as to be positioned side by side in the longitudinal direction of the grain stem, and the upper and lower drive shafts ( A pair of electric chains are installed to connect 9) separately.

And the boss part of the rotating body 3 is equipped with the spacer 13 for fitting the rotating body 3 to the drive shaft 9 integrally from the outside, and regulating the space | interval of the adjacent rotating body 3 integrally. Installing on

The threshing apparatus of the present invention can be mounted and used on a combine or harvester, and the specific configuration of the rotating body 3 to which threshing teeth are attached and the specific configuration for supporting it can be variously changed.

For example, the time for the intermittent action of the threshing teeth 10 of the rotating body 3 of the pair of rotating bodies 3 and 3 which are arranged to be disposed as opposed to each other on the upper and lower sides of the ear tip feed path. The time for the intermission action of the threshing teeth of the other rotating body 3 may be attached in a different arrangement state.

In addition, the threshing tooth 10 may be formed in a shape inclined with respect to the rotary shaft center so as to act in a combing manner with respect to the length of the grain stem.

The operational effects obtained by the above configuration are as follows.

That is, the circumferential velocity of the front end of the threshing tooth is threshed so that the front end of the threshing tooth is located in either one of the ear tips and the other end of the grain stem conveyed in a state where there is a thickness observed in the conveying direction. By determining the speed of the rotating body so that the speed is appropriate for processing, the entire tip of the grain stem can be threshed without any threshing remaining portion, and the rotor is placed on both sides of the moving path of the tip of the grain stem. However, since the rotating body can be made smaller in diameter, the threshing apparatus can be miniaturized.

The embodiment shown in Figs. 9 to 14 has threshing rotary bodies disposed in two stages up and down, but the characteristics thereof are the storage nets located in the lower part of these rotary bodies, in particular, the dust discharge mechanism installed in the storage net. Corresponds to

The positional relationship between the threshing teeth held by each of the rotating bodies is illustrated as the same as in the first embodiment described above, but it is a matter of course that the threshing teeth can be arranged in the same manner as in the second embodiment.

10 to 14, the dust discharge opening of the storage net will be described.

Forming a gap S ₁ or S ₂ which allows the treatment object to fall between the rotation shafts 9 adjacent to each other in the grain length direction and between the rotation shaft 9 and the threshing chamber side wall 20, respectively. The clearance gap is provided, and the sorting storage net 11 is provided in the lower part of the rotating shaft 9, and the dust on the threshing opening 20 side and the threshing opening 20 of the storage network 11 is opposite to each other. Cover body 23 made of two nets which are installed as the discharge opening 21 or 22 along the grain stem conveyance direction, and which open and close these dust discharge openings 21 and 22 separately, respectively. ) And (24) freely attached to the storage net (11) up and down freely, and a pair of operation ports (25), (26) to configure the opening and closing operation separately from the outside of the body, respectively, Water is dropped into the storage net 11 to be sorted by grain and straw, and the grain is sorted at the bottom through the storage net 11. The part (D) is configured to discharge the straw crumbs from the dust discharge openings 21 and 22 to the sorting unit D, respectively, and to control the opening and closing of the dust discharge openings 21 and 22. The grain and the large straw crumbs are supplied to the sorting section D separately from the threshing opening side and the side opposite to the threshing opening, or quickly fed to the sorting section D so as not to stay on the storage net 11 for a long time. It is configured so that it can be supplied.

That is, when threshing the short grain stem located in the threshing opening side, the dust discharge opening 21 of the threshing opening side is closed as shown in FIG. 12, and the dust discharge opening on the opposite side ( 22) to open.

Then, the threshed particles mainly fall to the threshing opening part of the storage net 11 and fall to the sorting threshing part located at the lower part of the receiving net 11, so that the straw does not fall between the rotating shafts generated by threshing. The debris is conveyed by the threshing tooth 10 on the opposite side to the threshing opening 20 so as to be disposed between the rotary shaft 9 and the threshing chamber side wall 2a and through the dust discharge opening 22 opposite the threshing opening. Falling to the other side of the sorting threshing opening located in the.

When threshing the long grain stem which is located deep inside the threshing opening, as shown in FIG. 13, the dust discharge opening 22 of the threshing opening side is opened, and the dust discharge opening on the opposite side to this is shown. (22) is closed.

Then, the threshed particles are mainly dropped to the part opposite the threshing opening of the receiving net 11 and fall to the part opposite the threshing opening located at the bottom of the part, and thus to the part opposite the threshing opening located at the bottom of the part. With respect to the dropping, the large crumbs dropped between the rotary shaft 9 and the threshing chamber side wall 2a are the threshing teeth 10 of the lower rotary shaft which move above the storage net 11 toward the threshing opening 20. It is conveyed to the threshing opening side 20 by the fall, and falls to the sedimentation threshing opening part located in the lower part of the part through the threshing opening side dust discharge opening 21.

When threshing the grain stem which is easy to thresh, as shown in FIG. 14, the dust discharge openings 21 and 22 of the threshing opening side and the threshing opening opposite side are opened, despite the length of a grain stem.

Then, not only the straw flakes falling between the rotating shaft 9 and the threshing chamber side wall 2a but also the threshing openings opposite to the threshing opening 22 are provided with the threshing particles falling near the portion without being transported toward the threshing opening. In the threshing opening side dust discharge opening 21 without threshing particles falling into the threshing opening portion of the storage network 11 and falling toward the threshing opening of the storage network 11 at To fall.

As shown in FIG. 10, in the present embodiment, the arrangement of threshing teeth is the same as that of FIG. 3, and the device 16 for combing and unrolling the grain stem is made so that the progress of the tip of the grain stem is not later than that of the bottom portion. To FIG. 10, FIG.

The apparatus is configured to be driven by an endless rotating chain so that the jaw 17 combing and spreading the grain stem is moved along the grain stem supply port 12 so as to stand upright on the opposite side from the threshing port 20.

The above-mentioned dust discharge openings 21 and 22 may be formed by making the scale of the net of the storage net 11 larger than the scale of the net of the sorting part of the center side.

The above-mentioned both cover bodies 23 and 24 may be changed to a slide type, a plate, or the like, or may be interlocked so as to be opened and closed as one operation tool.

In order to enable the opening and closing of both dust discharge openings 21 and 22 alternatively, you may employ | adopt the structure which moves the accommodation net 11 to the threshing opening side and the opposite side of the threshing opening.

Finally, the embodiment of FIGS. 15 to 17 will be described.

Also in this embodiment, a threshing rotary body is arrange | positioned in two steps, and the grain stem passes between these two steps.

The difference from the embodiment of FIGS. 9 to 14 is that the front end of the threshing tooth is further approached to the storage net, and a processing space for straw crumb is formed between the threshing tooth and the storage net and storage. The part of the net carrier side is cut off and forms the dust discharge opening.

In addition, the storage net close to the grain stem supply opening may or may not be cut off.

According to this structure, the cut abnormal part, the straw crumbs, etc. which are in the state of half threshing particle receive the threshing action by the threshing teeth of the rotating body of the lower stage, and the vigorous stirring action between the storage nets toward the said opening. .

This stirring action also promotes the dropping of grain particles from the cut ears.

Only straw flakes fall from the opening of the storage net so that the grain particles fall on the swing screen through the scale of the storage net.

It should be noted that both the upper and lower stages are closely arranged with the rotating shaft of the rotating body and the threshing tooth, so that only the large ones are moved between the two stages to the deepest and fall into the storage net. will be.

On the other hand, a small amount of straw flakes and grains pass through the threshing teeth and fall directly onto the storage net.

Therefore, before the coarse and large straw crumbs reach any part of the storage net, the grain grains and thin straw flakes fall down on the sorting plate through the eyes of the storage net, so that the area between the lower rotor and the storage net There is no need to close it with this excessive amount of straw crumbs.

15 to 17 will be described in more detail below.

The rotational trajectories of the threshing rotary bodies 3 overlap each other from side to side and top and bottom, and a flat storage network 11, which is a filter medium, is placed in the lower part of the threshing chamber 2 in close proximity to the threshing rotary shaft 3 group. In addition to the hypothesis, the threshing portion is formed by forming a long discharge port 21 before and after leaving the inlet portion of the threshing chamber 2 at the end of the conveying chain 1 side of the storage net 11.

In the lower threshing part, the grain-grained grain and the small straw crumbs which passed through the storage net 11 were received in the rocking | separation sorting board 5, and the grain-grained grain was sorted by the shaking and the sorting wind from the balloon ball 6. The particles are collected and collected again, and the grains selected by the bottom conveying screw 7 are taken out of the apparatus, and the dust, etc. suspended by the dust 39 in the cross flow is sucked in the dust outlet 38. Threshing device is configured to be discharged.

Next, the processing state in the threshing part is demonstrated in detail.

The grain stem conveyed and supported by the conveying chain 1 in the horizontally-positioned posture is carried in into the threshing chamber 2, and is uniformly up and down in the threshing space C of the threshing rotating body 3 group of two stages of up and down. The threshing process, which is separated from the grain stem, of grains or relatively small straw flakes falls on the storage network 11 through the group of threshing rotating bodies 3 below and passes through the storage network 11. .

Moreover, the comparatively long straw flakes are conveyed to the ear by the upper and lower threshing rotary bodies 3, and are sent to the storage net 11 by bypassing the outer side of the threshing rotary bodies 3 of the lower right end.

On the storage network 11, the threshing process is disturbed by the threshing rotating body 3 below, and the particles which are already single grains pass through the storage network 11, and the grain grains attached to the branches After stirring into single grain particles, it passes through the storage network (11).

And since each threshing rotary body 3 is rotating toward the conveying chain 1 with respect to the storage network 11, the whole processed material is supplied to the conveying chain 1 side, and a grained process including a grain grain is accommodated. Unfiltered water made up of large straw crumbs through the net 11 reaches the discharge port 21 and is discharged.

That is, the threshing rotary body 3 at the lower side is threshed in the threshing space C in the threshing space C, and at the same time, the threshing material is stirred and conveyed from the upper surface of the storage network 11.

As the filter medium, in addition to using the storage net 11, it is also possible to use an accommodating net installed side by side at a small interval of the bar, and using a filter medium in which the fixing treatment teeth are disposed upward at equal intervals. Also good.

Moreover, you may provide the formation range of the discharge port 21 provided in the edge part of the filter medium in the full length of the threshing chamber 2 in the front-back direction.

Claims (6)

In a threshing apparatus having a plurality of threshing rotating bodies 3 each having a plurality of threshing teeth 10, the rotating body 3 rotates around an axis P in the grain stem feeding direction. Direction, and the shaft cores P of the respective rotating bodies 3 are installed side by side in parallel with each other, and the curvatures in contact with the rotating bodies 3 cross each other at substantially right angles to the shaft center P. Threshing apparatus, characterized in that the rotational trajectories of the threshing teeth (10) of the rotating body (3) adjacent to each other intersect with each other as viewed in the axial center (P) direction. The planar view of the threshing apparatus 10 group adjacent to the left and right adjacent to the grain stem supply inlet side of the above-mentioned rotary body 3 group in planar view, The inclined state located in the lower side of a grain stem broadcasting direction more so as to be the tip side. Threshing device, characterized in that arranged in the. 2. The rotating body (3) according to claim 1, wherein the plurality of said rotating bodies (3) are respectively positioned on the upper and lower sides of the moving path of the tip of the grain stem, and the rotating bodies are opposite to both of the paths observed and observed in the grain stem conveying direction ( A threshing apparatus characterized in that it is installed in a state in which rotation trajectories of threshing teeth of (3) and (3) overlap. The storage network 11 is provided in the lower part of the said rotating body 3 group, and the opening for dust discharge is formed in the edge part (1) which is the conveyance body of the storage network 11 mentioned above. Threshing device, characterized in that 21) is installed. 5. The dust discharge opening (22) is provided at the end opposite to (1), which is the carrier body of the storage net (11). The threshing apparatus characterized by the above-mentioned lid | cover body 23 (24) which opens and closes an opening, respectively. The threshing apparatus according to claim 4 or 5, wherein each of the rotating bodies (3) described above is rotated such that all of the rotation directions on the grain stem conveying path are directed toward the tip of the ear.

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