JP2007195457A - Threshing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To materialize the related constitution of a grain-dropping plate and a resistance plate; to improve threshing performance; and to raise a grain-dropping effect. <P>SOLUTION: The threshing apparatus is equipped with the resistance plate 5 for providing cereal culms to receive a threshing action with a threshing resistance and the comb-like grain-dropping plate 9 to overlap with the threshing teeth 1 of a threshing cylinder 2 and to drop threshed materials to the threshing cylinder 2 side at the upper part of a threshing port side of a threshing chamber internally and axially installing the threshing cylinder 2 with the threshing teeth 1. The resistance plate 5 has a constitution that a projection margin H1 from the grain-dropping plate 9 downward is lengthened at the first half side of the threshing chamber and the projection degree of the resistance plate is reversed at the second half of the threshing chamber and the length of H2 from the lower end of the grain-dropping plate 9 upward is shortened. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a threshing apparatus used for a combine, a harvester, or the like, and belongs to the technical field of agricultural machinery.

  Conventionally, as disclosed in Patent Document 1, by providing an anti-corrosion body that overlaps with the tooth handling on the start end side of the handling chamber, the grains carried around by the tooth handling fall off inward of the handling chamber. There is something like that.

Moreover, as shown in Patent Document 2, a resistance plate that provides threshing resistance to the cereal threshed by the handling cylinder is provided at the upper side of the handling chamber.
JP 2001-120044 A Japanese Patent Laid-Open No. 62-32818

  Such an anti-corrosion body is provided only at the start end side of the handling chamber, and a large amount of grains mixed with dusts such as straw scraps are carried around at the end side of the handling chamber, particularly at the dust drainage passage. There is a problem that it is pushed into the waste straw and discharged as it is with the waste straw.

In addition, the resistance plate of the above-described conventional example only shows a configuration example in which a step portion that covers the connecting rod is provided.
An object of the present invention is to embody a related configuration of a dropping plate and a resistance plate to improve the grain removal performance and enhance the lifting effect.

  The present invention has taken the following technical means in order to solve the above-described problems. That is, the present invention according to claim 1 is a cereal subject to threshing action in the upper part of the handling port (4) side of the handling chamber (3) in which the handling cylinder (2) with the tooth handling (1) can be mounted on the interior. A resistance plate (5) for imparting threshing resistance to the cocoon, and a comb-shaped scissor plate (9) that overlaps with the tooth treatment (1) of the barrel 2 and drops the degranulated material toward the barrel (2). ), And the resistance plate (5) has a longer protruding margin than the lower plate (9) on the front half side of the handling chamber, and a lower protruding margin than the lower plate (9) on the second half side. It is characterized by having a shortened configuration.

  The cereal straw supplied into the handling chamber is given threshing resistance by the resistance plate (5), and cerealed with the receiving net (10) by the rotation of the handling cylinder (2). The handle (1) of the barrel (2) is scraped down and passes between the comb teeth of the plate (9), scraping the grain that has been squeezed into the stock side of the cereal, and the carried grain is It is guided and dropped on the drop-off plate (9) toward the tip side below the handling cylinder (2), so that it is prevented from leaning toward the stock side.

  The resistance plate (5) has a longer protruding margin below the sag plate (9) on the front half side of the handling chamber, so that the degranulating action is mainly promoted. (9) By shortening the downward protrusion, rather, the lowering plate (9) will protrude longer downward, so that mainly the lowering effect will be performed effectively. It is possible to increase the effect of preventing casual touch.

  According to a second aspect of the present invention, in the first aspect, the crushed plate (9) is inclined downward toward the barrel axis so that the tip action portion intersects the rotation locus of the tooth treatment (1). It is characterized by being arranged.

  Since the drop-off plate is arranged in a downwardly inclined state from the upper side of the handling cylinder (2) toward the axial center side, the tip on which the tooth handling (1) acts on the grain flow in the handling chamber (3) It becomes possible to make it flow smoothly toward the side, and it is possible to reliably prevent the grain from entering the stock side.

According to a third aspect of the present invention, in the second aspect of the present invention, the scraping plate (9) is configured such that the position of the tip action portion can be changed and fixed so as to be displaced along the tilt direction. .
The drop-off plate (9) can be appropriately put in and out depending on the amount of the cereal conveyance amount that is nipped and conveyed along the handle (4). That is, when the layer of the transported cereal is thick, the squeezing plate (9) is pulled down, and when the layer is thin, it is pulled back upward to effectively reduce the squeezing action and enhance the anti-salting effect.

  In short, according to the first aspect of the present invention, the resistance plate (5) protrudes downward longer than the drop plate (9) on the front half side of the handling chamber (2), thereby mainly promoting the degranulation action. The graining effect can be enhanced, and in the latter half of the handling chamber, by shortening the protrusion downward from the squeezing plate, mainly the scouring action can be effectively performed and the scouring prevention effect can be improved. .

  Further, according to the present invention of claim 2, while the effect of the invention of claim 1 is achieved, the scraping plate (9) is in a downwardly inclined state from the upper side of the handling cylinder (2) toward the shaft core side. Because it is arranged, it is possible to smoothly flow the grain flow in the handling room (3) toward the tip side where the tooth-handling acts, so that the grain is surely pushed into the stock side. Can be prevented.

  Furthermore, according to the third aspect of the present invention, while the effect of the second aspect is achieved, the scraper plate (9) can be adjusted in and out as appropriate depending on the layer thickness of the cereal conveyance amount. Therefore, it is possible to expect a high-precision drop-off effect, and to reduce the fourth loss.

Embodiments of the present invention will be specifically described below with reference to the drawings.
First, the structure of the combine shown in FIG. 1 will be described.
On the vehicle body 21 provided with the traveling crawler 20, a mowing unit 22 that can be moved up and down is mounted at the front, and a threshing device (threshing machine) 23 is mounted at the rear. A driving unit 24 is installed on the lateral side of the mowing unit 22 and a Glen tank 25 is installed behind it.

  Next, the configuration of the threshing device 23 will be described. Threshing is carried out on the upper side of the handling port 4 of the handling chamber 3 on which the handling cylinder 2 with the handle 1 can be mounted on the interior, and is subjected to threshing action between the front plate 6 and the rear plate 8 of the handling chamber 3. A resistance plate 5 for imparting resistance and a comb-shaped screed plate 9 that overlaps with the tooth handle 1 of the treatment cylinder 2 and guides the crushed material to the treatment cylinder 2 side are disposed.

  A receiving net 10 is stretched along the lower half circumference of the handling chamber 3 between the front side plate 6 and the middle side plate 7, and the dust passage part between the middle side plate 7 and the rear side plate 8 is located below. A dust outlet 11 is formed that leads to the sorting chamber. The simple guide plate 9 is attached to the resistance plate 5 at the top of the handling port 4. The resistance plate 5 covers the upper part of the handling chamber 3 and is configured integrally with a handling cylinder cover 12 that can swing and open around an axis parallel to the handling cylinder axis direction. In addition, the handle 4 is provided with a feed chain 13 for holding and transporting the stock side of the cereal along the handle and a holding rail 13a facing the upper side. This clamping rail 13a is mounted on the barrel cover 12 side and swings and opens together with the cover.

  Further, the resistance plate 5 protrudes greatly on the front half start end side of the handling chamber so that the protrusion allowance H1 is longer than the lower end (tip end) of the scissor plate 9, and sequentially reaches the latter half side. The projecting degree is reduced, and the projecting degree is reversed to reach the end of the handling chamber, and the length of H2 is shortened upward from the lower end of the plate.

  The scribing plate 9 is formed in a comb shape so that the tooth handle 1 passes through the notched grooves 9b, 9b... Between the comb teeth 9a, 9a. It is inclined so as to maintain a predetermined angle θ with respect to the tangential direction so as to cross the trajectory. That is, it is set as the structure arrange | positioned in the downward inclination state which the lower end side goes to the axial center direction of the treatment cylinder 2 from an upper end. Further, as shown in FIG. 4, the drop-off plate 9 is configured to be adjustable to extend and contract in the vertical direction parallel to the inclination direction. The tightening tool 14 is loosened, and the position is adjusted by pulling the plate downward and pulling it upward through the elongated hole 15.

  An impeller 16 is provided at the start end of the handling cylinder 2 so as to take in the grains to be scattered in the front of the handling chamber. When the taken-in grains are carried around in the handling chamber, they are subjected to the action of a squeeze plate to prevent the grains from being pulled toward the cereal stock side.

  Next, another embodiment of the combine will be described. FIGS. 5 to 8 show configuration examples in which a take-up and transport chain 27 is provided in the vicinity of the position closer to the tip of the grain straw supplied on the starting end side of the feed chain 13. The take-up transport chain 27 is positioned above the starting end of the feed chain 13 so that it can be handed over only with the upper take-up transport chain in the case of short hangs with little drooping. It ensures that it can be supplied into the handling room without adversely affecting or damaging the cereal.

  In addition, the takeover conveyance chain is stretched in a horizontal state with respect to the ascending feed chain, so that the takeover conveyance can be reliably performed without slipping down even when the conveyance postures such as the fallen cedar and the short rice cake are disturbed.

  Further, by adopting a configuration in which the start end of the feed chain 13 is positioned forward with respect to the start end of the takeover conveyance chain 27, the long tip with large drooping conveys the tip side only with the upper takeover conveyance chain, and the posture is poor. If this happens, the stock side that hangs before it can be transferred and transferred by the feed chain, and the tip side can be transported in a stable posture without leading.

  The take-up conveyance chain 27 is driven by a driving sprocket 28 of the feed chain 13. Reference numeral 29 denotes a takeover guide rod to the feed chain 13, and 30 denotes a takeover guide member to the takeover conveyance chain 27.

  Further, as shown in FIGS. 7 and 8, the feed chain 13 is configured to swing and open with the upper and lower upper support shafts 31u and 31d installed on the machine body as pivot points. The upper fulcrum support plate 32 on the feed chain side is provided on a separate member 34 different from the attachment member 35 of the lower fulcrum support boss 33, so that the upper and lower fulcrum support members are provided on the same frame such as a pipe. On the other hand, the space between the upper and lower fulcrum support members can be effectively used, and the configuration can be simplified and compact.

  At the lower position of the feed chain 13, a straw-shaped straw waste discharge guide plate 36 that is forwardly lowered is provided, and the straw waste that has fallen on the guide plate 36 from the feed chain is guided and dropped forward, and a belt below the feed chain 13 is provided. By discharging to the front side from the cover 37, entry of straw waste into the belt cover is prevented.

  As shown in FIG. 9, the threshing device 23 is configured so that the handling cylinder 2 and the feed chain 13 parallel to the handling cylinder axis are located on the uncut ground side with respect to the moving direction of the machine body in plan view, and the threshing device 23 is already installed on the terminal side. In the combine in the form in which the waste straw cutter 26 for cutting the waste straw after threshing is disposed in the rear direction of the threshing device in the lateral direction orthogonal to the handle cylinder axis is provided at the rear of the threshing device. By arranging the numbering cylinder 40 in the lower space part of the feed chain 13, the space can be used effectively, and the capacity of the Glen tank 25 mounted on the right side of the threshing part can be increased. In the upper and lower positions of the rear portion of the No. 2 processing cylinder 40, the takeover metals 43, 44 are disposed, and the lower takeover metal 44 is a No. 2 receiver for mounting the No. 2 transfer spiral 45 on the interior as shown in FIG. In addition to being connected to the basket 46, the second cereal helix 49 is communicated via a bevel case 50 to a second cereal cylinder 49 on which an interior shaft can be mounted. The bevel case 50 is internally provided with a bevel gear that rotationally drives the second lifting spiral shaft 48 from the second transfer helical shaft 45a. As shown in FIGS. 11 and 12, the upper takeover metal 43 communicates with the second lifting cylinder 49 and the second processing chamber 41, and bevel gears 51 and 53 are provided inside the takeover metal 43. A bevel case 55 to be mounted is provided, and the bevel gear shaft 52 and the No. 2 cereal spiral shaft 48 and the bevel gear shaft 54 and the No. 2 processing barrel shaft 40a are connected to each other via couplings 57 and 57 that are detachable. The numbering cylinder 40 is interlocked to be rotationally driven from the lower second transfer spiral 45 axis via the second raised grain spiral shaft 48. With this configuration, the second processing cylinder can be easily attached and detached, and the maintainability is improved. In addition, the interlocking configuration is also simplified because the second cereal spiral shaft also serves as the interlocking configuration. Further, the second processing cylinder 40 is configured so as to be able to swing open and close outward with the second cereal spiral shaft 48 as a rotation fulcrum. It is possible to further improve the maintainability by attaching to the support member and integrally swinging and opening.

  By making the starting end side of the No. 2 processing cylinder 40 a continuous spiral body 42a, the transfer from the takeover metal 43 to the No. 2 processing cylinder start end side is made smooth, and from the spiral body 42a portion of the No. 2 processing cylinder to the end side, By making the discontinuous treated teeth 42b and making the rotational outer diameter of the treated teeth larger than the spiral diameter, it is possible to reliably carry out the grain breakage treatment of the spikes and branches. In addition, since the said 2nd whipping cylinder 49 is also arrange | positioned at the feed chain 13 side of a threshing part, the space can be used effectively, the space by the side of a glen tank can increase, and it can also aim at increase of a tank capacity | capacitance.

  Further, as shown in FIG. 9, by setting an open fulcrum shaft 58 for swinging opening and closing the feed chain 13 at the rear part of the left side surface portion of the exhaust wall cutter 26, the open amount of the feed chain to the outside is set. A large amount can be secured and maintenance can be performed easily. Further, as shown in the figure, the chain cover 59 and the cutter cover 60 are integrated and opened together with the feed chain, so that the threshing part and the cutter part can be maintained together. In addition, as shown in FIG. 13, the open fulcrum shaft 61 of the waste straw cutter 26 can be set behind the right side of the cutter so that the waste straw cutter and the feed chain 13 can be opened together.

  Furthermore, as shown in FIG. 14, by arranging the No. 2 processing cylinder on the feed chain side on the left side of the threshing part, the glen tank 25 on the right side of the threshing part has a width W It can arrange | position so that a part may overlap with a threshing part (threshing width D), and the capacity | capacitance of a glen tank can also be increased. In addition, as shown in the figure, the Glen tank can be secured to the vicinity of the threshing portion by making the Glen tank a fan-shaped shape with the width W1 on the front plate side wider than the width W2 on the rear plate side in plan view. The capacity can be greatly increased.

  As shown in FIG. 15, in a combine having a structure in which the handling cylinder 2 and the feed chain 13 are arranged obliquely with respect to the machine body, the feed chain 13 is extended to above the waste straw cutter 26 and the tip side of the waste straw By providing the waste straw conveying device 62 positioned substantially parallel to the feed chain, the waste straw after threshing can be transported in an orderly manner to the cutter position in a stable posture. Further, the waste straw transporting device 62 is interlocked via a drive shaft 63 so as to be driven from the terminal side of the feed chain 13. Thereby, the interlocking configuration is simplified, and there is no drive mechanism on the starting end side of the waste straw conveying device, so that the waste straw after threshing can be smoothly transferred and conveyed.

  In addition, as shown in FIG. 15, if the tooth handling group 1 in the second half A range is attached to the feeding cylinder in the direction in which the feeding angle is provided from the middle middle part, the graining action is performed on the first half side of the long handling cylinder. It is possible to promote the leakage from the receiving net on the side, prevent the straw scraps from being carried around in the handling chamber, and reduce the threshing load. Furthermore, by setting the tooth-planting pitch rough on the first half side P1 and dense on the second half side P2, the first half side promotes the grain disaggregation action, and the second half side promotes leakage from the receiving net. It is easy to remove the small grains from the cereal grains.

  In the swing sorting device below the handling chamber, the swing sorting shelf 65 is configured to receive the processed product after the threshing process and screen the screen while swinging and transferring. -The lube 67 and the straw rack 68 are arranged in this order, and the gluing 69 is arranged below the chaff sheave 67.

  In addition, a sorting chamber is provided below the swinging sorting shelf 65 in order from the upper side of the sorting direction in the order of the red pepper 70, the first transfer spiral 71, the second transfer spiral 45, and the suction dust fan on the upper side. Is configured.

Combine side view Side view of essential parts of threshing device Front view of main parts of threshing device Front view of the main part Side view of essential parts of threshing apparatus of another embodiment Side view of the main part Side view of essential parts of threshing device Front view of the main part Plan view of the combine of another embodiment Top view of the main part Side view of the main part Side view of the main part Top view of the main part of the combine Top view of the combine Top view of the combine

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Teeth handle 2 Handle cylinder 3 Handling chamber 4 Handle 5 Resistance plate 6 Front side plate 7 Middle side plate 8 Rear side plate 9 Trimming plate 13 Feed chain

Claims (3)

  Resistor plate that provides threshing resistance to the cereals subjected to the threshing action at the upper part of the handling port (4) side of the handling chamber (3) on which the handling cylinder (2) with the tooth handling (1) can be pivoted internally. 5) and a comb-shaped screed plate (9) that overlaps with the teeth (1) of the barrel 2 and drops the crushed material toward the barrel (2), and the resistance plate (5) The threshing is characterized in that the first half of the handling room has a longer protruding margin than the dropped plate (9), and the second half has a shorter protruding margin than the dropped plate (9). apparatus.   The said dropping plate (9) is arranged and configured in a downwardly inclined state toward the barrel axis so that the tip action portion intersects the rotation locus of the handle (1). The threshing device described.   3. The threshing apparatus according to claim 2, wherein the lowering plate (9) is configured to be freely position-changeable so that a distal end working portion thereof is displaced along the inclination direction.

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