JP2012205532A - Threshing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a guide tool with a long service life by reducing a loss of members to be used as the guide tool while allowing a lower edge side of a guide plate guiding grains to the inner side of a threshing chamber to elastically deform in a vertical direction according to the necessity.SOLUTION: The guide tool 5 for guiding grains to the inner side of the threshing chamber includes a main guide plate 50 and a sub guide plate 51 both having flexibility. The main guide plate 50 has larger restoring force than that of the sub guide plate 51 located in the inner side of the threshing chamber of the main guide plate 50 and the sub guide plate 51 is configured detachably to the threshing chamber separately from the main guide plate 50, and wherein the position of its lower edge is extended to the same position as a lower edge of the main guide plate 50, or to the lower side than the lower edge of the main guide plate 50.

Description

  The present invention includes a holding and conveying mechanism that holds and conveys the stock side of the harvested cereal rice cake, and a handling cylinder that is rotationally driven so as to perform a threshing process on the tip side of the harvested cereal rice cake that is conveyed by the holding and conveying mechanism. And a threshing apparatus provided with a guide device that guides grains that flow down toward the stock side of the harvested culm with the rotation of the handling cylinder toward the inside of the handling chamber.

  The above-mentioned guide tool guides the grains that flow down toward the stock side of the harvested culm with the rotation of the handling cylinder toward the handling cylinder, so that the grains are conveyed by the holding and conveying mechanism. The purpose is to prevent the occurrence of the small potatoes that enter the plant side of the cocoon and to avoid the risk that the grains will be discharged together with the harvested cereal after the threshing treatment. And a guide plate made of an elastically deformable resin plate such as an extended rubber plate and a pressing plate located above the guide plate (for example, see Patent Document 1). ).

As this kind of guide tool, in order to suppress the occurrence of the above-mentioned cauldron, the grain that flows down toward the stocker side of the harvested culm with the rotation of the barrel is guided toward the inside of the handling chamber. Thus, in addition to the function of maintaining the posture of the guide plate, it is desired to have the following functions.
In other words, when a large amount of threshing product is generated in the handling chamber, a part of the threshing product may become a lump and be rotated along with the rotation of the handling cylinder. If rotation is stopped at the location where the guide tool is present, clogging may occur, so that the lower end side of the guide plate is elastically deformed downward away from the handling cylinder so as to allow such a lump of threshing to pass. And must be configured to escape.
In the threshing device for self-decomposing combine harvesters, when the amount of cereal supplied to the mouthpiece increases, the lower edge side of the guide plate is elastically deformed so as to be pushed upward to allow passage of the cereal. There is also a need to do.

JP 2008-182975 (paragraphs [0038], [0039], [0047], FIGS. 3, 4 and 5)

  As described above, in the guide device constituted by the elastically deformable guide plate such as a rubber plate extending obliquely downward in the inside of the handling chamber and the pressing plate located above the guide plate, the guide The press plate located on the upper side of the plate is useful in that it can reduce the wear caused by the contact between the threshing product flowing down and the guide plate and improve the durability of the guide plate. However, since the elastically deformable guide plate is constituted by a single member, it is necessary to replace the entire plate even when partial wear occurs.

  An object of the present invention is to reduce the loss of a member used as a guide plate in a threshing apparatus provided with a guide tool using a guide plate that guides grains flowing down in the handling chamber toward the inside of the handling chamber. Is to get a long guide tool.

The technical means of the threshing apparatus in the present invention taken to achieve the above object has structural features and operational effects in the following points.
[Solution 1]
A holding conveyance mechanism for holding and conveying the stock side of the harvested cereal meal is provided, and a handling cylinder that is rotationally driven so as to perform threshing processing on the tip side of the harvested grain meal conveyed by the holding conveyance mechanism is provided in the handling chamber. A threshing apparatus equipped with a guide device that equips and guides the grain that flows down toward the stock base side of the harvested grain culm with the rotation of the barrel, toward the inside of the chamber. The tool includes a main guide plate and a sub guide plate that are displaceable both inward and outward of the handling chamber, and the main guide plate is located on the inside of the handling chamber of the main guide plate. The restoring force is greater than that of the auxiliary guide plate, and the auxiliary guide plate is configured to be removable from the handling chamber separately from the main guide plate, and the lower end position thereof is the same position as the lower end of the main guide plate. Or it is extended below the lower end of the main guide plate.

[Operation and effect of invention according to Solution 1]
According to the characteristic configuration shown in the above solution 1, the guide plate used as a guide is not just a single guide plate, but both a main guide plate and a secondary guide plate that can be displaced inward and outward of the handling chamber. In addition to the main guide plate, the sub-guide plate, which is composed of a combination with the guide plate and is located on the side of the chamber, can be attached to and detached from the chamber. The lower end position of the main guide plate extends to the same position as the lower end of the main guide plate, or below the lower end of the main guide plate. For this reason, the threshing processed material which flows in the handling chamber along the rotation direction of the handling cylinder comes into contact with the auxiliary guide plate positioned on the handling chamber side and is guided toward the handling chamber side.
At this time, since the lower end position of the sub guide plate is the same as the lower end of the main guide plate or extends below the lower end of the main guide plate, the sub guide plate flows in the handle chamber along the rotation direction of the handle cylinder. The processed threshing product is guided by contact with the inner side sub-guide plate, and the main guide plate is free from direct contact with the processed threshing product.
Therefore, the lower end side of the auxiliary guide plate that is likely to come into contact with a large amount of threshing product compared to the main guide plate tends to wear out earlier than the main guide plate. Since it is configured to be detachable separately from the main guide plate, when the sub guide plate is worn, replace only the sub-guide plate that is heavily worn, and reuse the main guide plate that has no or little wear. The loss of the member used as the guide plate can be reduced. As a result, the service life of the main guide plate can be made as long as possible.

  In configuring the guide device, the restoring force is greater than that of the sub guide plate positioned on the inner side of the main guide plate, and the main guide plate functions as a means for maintaining the posture of the sub guide plate. The main guide plate can be displaced inward and outward of the handling chamber together with the auxiliary guide plate. The threshing processed product can be allowed to pass through, and the lower edge side of each guide plate can be moved upward to allow passage of the cereal in response to an increase in the amount of cereal supplied.

[Solution 2]
Another technical means of the present invention taken in order to solve the above-mentioned problems is characterized in that the sub guide plate is provided so as to cover a range from the upper end to the lower end of the main guide plate on the side in the handling chamber. And

[Operation and effect of invention according to Solution 2]
According to the characteristic configuration shown in the solving means 2, the sub guide plate is provided so as to cover the range from the upper end to the lower end of the main guide plate on the side in the handling chamber, so that the main guide plate covered by the sub guide plate Wear in the range from the upper end to the lower end is generally suppressed, which is useful for extending the useful life of the main guide plate.

[Solution 3]
Another technical means of the present invention taken in order to solve the above-mentioned problems is characterized in that the sub guide plate is configured to have a size covering the entire surface or substantially the entire surface of the main guide plate on the side of the handling chamber. And

[Operation and effect of invention according to Solution 3]
According to the invention relating to the above solution 3, the sub guide plate covers the entire surface or substantially the entire surface of the main guide plate on the side in the handling chamber, so that the main guide plate more directly contacts the threshing product. There is an advantage that the service life of the main guide plate can be extended.

[Solution 4]
Another technical means of the present invention taken in order to solve the above-mentioned problem is that the sub guide plate is shorter in length in the direction along the conveying direction of the harvested cereal by the holding and conveying mechanism than the main guide plate. It is formed and is provided in a range corresponding to the front side of the guide tool in the cutting grain haul conveyance direction.

[Operations and effects of invention according to Solution 4]
According to the invention relating to the above solution 4, the auxiliary guide plate located on the side of the handling chamber is formed shorter than the main guide plate, and is provided in a range corresponding to the front side of the guide tool. The threshing product comes into contact with the auxiliary guide plate at the front portion in the direction of conveying the harvested culm where the amount of the threshing product is large in the handling chamber.
In other words, there is a secondary guide plate at the front part in the direction of chopped grain mash transporting where there is a large amount of threshing product in the handling room, and avoiding contact between the main guide plate and the threshing product in this part By being able to do so, the service life of the main guide plate can be extended, and a sub-guide plate having a relatively small area can be used, thereby reducing the cost of the sub-guide plate having a high replacement frequency. it can.

[Solution 5]
Another technical means of the present invention taken in order to solve the above-mentioned problem is characterized in that the sub guide plate is composed of a plurality of sheets that are stacked on the side of the inside of the chamber inside the main guide plate. To do.

[Operation and effect of invention according to Solution 5]
According to the invention relating to the above solution 5, the sub guide plate is composed of a plurality of sheets stacked on the inner side of the handling chamber, so that the period until the sub guide plate itself needs to be replaced is lengthened. Thus, the frequency of maintenance work for replacing the sub guide plate can be reduced.

[Solution 6]
Another technical means of the present invention taken to solve the above-described problem is that the sub guide plate is provided over the entire length of the guide tool in the direction along the conveying direction of the harvested cereal meal by the holding and conveying mechanism. The first sub-guide plate and the second sub-guide plate provided only in a range corresponding to the front side of the guide tool in the cutting grain transporting direction on the side of the inside of the handling chamber of the first sub-guide plate It is characterized by being.

[Operations and Effects of Invention According to Solution 6]
According to the invention relating to the above solution 6, the sub guide plate is composed of a plurality of the first sub guide plate and the second sub guide plate, so that the sub guide plate itself needs to be replaced. The period until the time can be lengthened, the frequency of maintenance work for replacing the sub guide plate can be reduced, and the second sub guide plate is provided only in the range corresponding to the front side of the guide tool. Therefore, the wear resistance of the auxiliary guide plate on the front side where the amount of threshing processed material in the handling chamber is large is locally enhanced at the location where the second auxiliary guide plate exists, and within the range extending over the entire length of the auxiliary guide plate. The wear resistance can be averaged.
Therefore, compared with the case where both the first sub-guide plate and the second sub-guide plate are configured with the same size as the entire length of the guide tool, the amount of use of the sub-guide plate is less, and the sub-guide plate The cost can be reduced.

[Solution 7]
The other technical means of the present invention taken in order to solve the above-mentioned problem is that the main guide plate and the sub guide plate have a lower end portion of a tooth-handling provided in the handle cylinder as the handle cylinder rotates. It is provided so that it may enter into the inside of the rotation locus which a tip draws, and the notch which permits passage of the teeth handling is formed in the lower end part which entered the inside of the rotation locus. .

[Operation and effect of invention according to Solution 7]
According to the invention relating to the solution means 7 described above, the lower end portions of the main guide plate and the sub-guide plate enter the inside of the rotation locus drawn by the tip of the tooth-handling, and guide the threshing processed product toward the inside of the room. Even if it is ensured, the wear due to the interference between the main guide plate and the sub guide plate and the teeth is reduced, and the service life of the main guide plate and the sub guide plate can be extended.

[Solution 8]
Another technical means of the present invention taken to solve the above-mentioned problems is that, in the cutout portion formed in the main guide plate and the sub guide plate, in the conveying direction of the harvested cereal meal by the holding and conveying mechanism. The notch part provided in the front side is formed wider than the notch part provided in the conveyance direction back side.

[Operation and effect of invention according to Solution 8]
In the handling chamber on the front side in the conveying direction of the harvested cereals, a large amount of processed threshing is generated immediately after the start of the threshing operation, and is flowing in the handling chamber along the rotation direction of the barrel. There is a possibility that many threshing products will also flow between the notches formed in the guide plate and the auxiliary guide plate and the teeth.
According to the invention relating to the above solution 8, by forming the notch portion provided on the front side in the conveying direction of the harvested cereal rice cake wider than the notch portion provided on the rear side in the conveying direction, Even if a large amount of threshing material flows between the notch provided on the front side in the conveying direction and the tooth-handling, the threshing-treated material is handled in the narrow notch and the tooth-handling, main guide plate or sub-guide. It is possible to avoid the state of being in strong sliding contact with the plate, reducing the wear of the main guide plate and sub-guide plate on the front side in the conveying direction of the harvested cereal rice cake, and extending the service life It is.

[Solution 9]
Another technical means of the present invention taken in order to solve the above-described problems is that the guide tool is located on the front side in the conveying direction of the harvested cereal by the holding and conveying mechanism, and the front guide portion. And a lower edge of the rear guide part is formed along a conveyance direction by the holding and conveying mechanism, and a lower edge of the front guide part is the rear side. It is characterized in that it is formed in a front rising shape that is inclined so as to move away from the upper side toward the front side with respect to an extension line to the front side of the lower edge of the guide portion.

[Operations and effects of invention according to Solution 9]
On the front side in the conveying direction of the harvested cereal mash by the holding and transporting mechanism, the transport posture of the stalk mash that has been fed into the handling chamber is still stable because the entanglement with the subsequent stalk is not sufficiently solved. If there is no state, there is a tendency that the cutting stems in the middle of conveyance are easily caught on the front guide portion of the guide tool. However, according to the invention relating to the solving means 9, the lower edge of the front guide portion is held between the holding conveyance mechanism. Because it is formed in a front rising shape that is inclined so as to be farther away from the front side with respect to the extension line to the front side of the lower edge of the rear guide portion formed along the conveyance direction, it is fed from the front side There is an advantage that the possibility of the cutting stem culm being caught by the front guide portion can be reduced.

[Solution 10]
Another technical means of the present invention taken to solve the above-mentioned problems is that the guide tool is located on the front side in the direction along the conveying direction of the harvested cereal by the holding and conveying mechanism, and the front thereof. It is configured separately from the guide portion and is divided into a rear guide portion located on the rear side.

[Operations and Effects of Invention According to Solution 10]
According to the invention relating to the above solution 10, since the front guide portion and the rear guide portion are configured separately, the front guide portion located on the front side in the direction along the conveying direction of the harvested cereal is first. If worn, only the front guide portion needs to be replaced, and the amount of the guide plate to be replaced can be reduced compared with the case where the entire guide device is replaced, thereby extending the useful life of the entire guide device. There are advantages.

[Solution 11]
Another technical means of the present invention taken to solve the above-mentioned problems is that the sub-guide plate and the main guide plate are connected to each other in a state where the sub-guide plate and the main guide plate are superposed inside and outside. An inclination that is attached to the upper lip plate of the handling chamber with a presser and that extends obliquely downward toward the inner side of the handling chamber on each of the lower part of the upper lip plate and the lower part of the presser And a space between the inclined surface formed at the lower part of the upper lip plate and the inclined surface formed at the lower part of the presser is formed so as to gradually increase toward the lower end side. .

[Operations and Effects of Invention According to Solution 11]
According to the invention relating to the above solution 11, the sub guide plate and the main guide plate, which are overlapped on the inside and the outside, are formed between the inclined surfaces of the upper lip plate and the pressing member formed so as to gradually spread toward the lower end side. Is located.
As a result, the sub guide plate and the main guide plate that are superimposed on the inside and outside are not strongly pressed against each other and are relatively easy to move, and there is an interval between the inclined surfaces, so that the sub guide The lower end side of the plate and the main guide plate has a structure in which vertical swing is hardly restricted with the upper side of the inclined surface as a fulcrum.
Therefore, the sub-guide plate and the main guide plate perform well in the inclined posture and the function of avoiding clogging by the vertical swing displacement on the lower end side corresponding to the passage of threshing products and increase in the amount of culm. A threshing device with an easy-to-use structure was obtained.

[Solution 12]
Another technical means of the present invention taken in order to solve the above problems is characterized in that the main guide plate and the sub guide plate are made of different materials.

[Operations and Effects of Invention According to Solution 12]
According to the invention relating to the solving means 12, the main guide is required to have a restoring force for appropriately maintaining the posture as the guide tool and a function capable of being displaced inward and outward of the handling chamber. A material suitable for the plate, a material suitable for the sub-guide plate that is required to be displaceable inward and outward of the chamber and a function to suppress wear of the main guide plate. There is an advantage that a guide device having a long service life can be easily configured, which can be used in appropriate combinations.

[Solution 13]
Another technical means of the present invention taken in order to solve the above problem is characterized in that the sub guide plate is thinner than the main guide plate.

[Operations and Effects of Invention According to Solution 13]
According to the invention relating to the solving means 13 described above, the thickness of the sub guide plate, which is in a position covering the inside of the chamber inside the main guide plate and wears ahead of the main guide plate, is thinner than that of the main guide plate. Therefore, replacing the thin sub guide plate has the effect of extending the useful life of the guide tool with less material.

Vertical side view of threshing device Longitudinal front view of threshing section Side view showing guide tool mounting structure IV-IV arrow view in Fig. 3 V-V sectional view in FIG. Sectional view along line VI-VI in Fig. 3 Exploded perspective view showing guide tool Partial sectional view showing the mounting structure of the guide The disassembled perspective view which shows the guide tool in another embodiment. The disassembled perspective view which shows the guide tool in another embodiment.

  Hereinafter, an example of an embodiment of the present invention will be described based on the drawings.

[Overall configuration of threshing device]
FIG. 1 shows a longitudinal side surface of a threshing apparatus 1 mounted on a self-decomposing combine, and FIG. 2 shows a longitudinal rear surface thereof.
The threshing device 1 is a reaped cereal rice cake in a processing space formed by a lower case 1A connected to a machine frame (not shown) and an upper case 1B connected to the lower case 1A so as to be swingable. A threshing unit 2 that performs threshing treatment on the tip side of the head, and a selection unit 3 that performs sorting processing of the processed product that has been threshed. A nipping and conveying mechanism 4 for conveying is provided.

The threshing portion 2 is driven to rotate clockwise around the front shaft 20a as a fulcrum in the handling chamber 10 formed on the front end side of the upper case 1B, so that the threshing portion 2 is on the tip side of the harvested grain A handling cylinder 20 that performs the threshing process, and a receiving net 21 that leaks the processed product obtained by the threshing process toward the lower sorting unit 3 are configured. Behind the receiving net 21 is formed a dust feed port 22 through which the processed material that has not leaked from the receiving net 21 flows down toward the sorting unit 3 below.
That is, due to the threshing process in the threshing unit 2, a processed product having a high content such as a single grain or a grain with a branch is leaked from the receiving net 21 toward the front side of the selection unit 3 below. In addition, a processed product having a high content such as cut straw and straw scraps flows down from the dust feed port 22 toward the rear side of the sorting unit 3 below.

The sorting unit 3 includes a swing sorting mechanism 30 that swings and sorts the processed product from the threshing unit 2 and a tang 31 that generates a sorting wind that wind-sorts the processed product from the threshing unit 2. No. 1 connected to the No. 1 recovery part 32 connected to the lifting screw 32a and the No. 2 reduction screw 33a connected to the No. 2 recovery screw so as to collect the No. 1 product collected in a Glen tank (not shown). A collection unit 33 and the like are provided.
The threshing processed product supplied from the threshing unit 2 is subjected to rocking sorting by the rocking sorting mechanism 30 and wind sorting at the red pepper 31 to produce single grains and branches as the second. Sorted into mixture such as cereal grains and straw scraps, sliced straw and straw scraps as No. 3, etc., the No. 1 item in the No. 1 recovery unit 32, the No. 2 item in the No. 2 recovery unit 33 The third product is discharged from the terminal side of the swing sorting mechanism 30 through the dust exhaust fan 34 to the outside of the machine through the dust exhaust port 35.

The harvested cereal mash that has been threshed by the threshing unit 2 is discharged to the outside through the waste straw conveying device 13 and the waste straw processing device 14.
The waste straw transporting device 13 includes a transport chain 13a and a sandwiching rail 13b, and is configured to sandwich the grain source side of the cereal after the threshing process and transport it backward, and supply it to the waste straw processing apparatus 14. The waste straw processing apparatus 14 is configured to selectively switch between a state in which the waste straw is shredded and discharged downward, and a state in which the waste straw is discharged backward while remaining as a long straw.

As shown in FIG. 2, a lower lip plate 11 is provided at the upper left portion of the lower case 1 </ b> A, and an upper lip plate 12 is provided at the lower left portion of the upper case 1 </ b> B, and between the lower lip plate 11 and the upper lip plate 12. In addition, a mouth 23 for introducing the tip side of the harvested cereal rice cake that is held and conveyed by the holding and conveying mechanism 4 located outside the handling chamber 10 is formed.
The holding and transporting mechanism 4 includes a feed chain 40 disposed on the left side of the lower case 1A so as to have a transport surface 40A for transporting the harvested cereals along the lower lip plate 11, and a rail base 41 equipped on the upper case 1B. The holding rail 42 is supported at the lower part of the rail base 41 so as to be vertically displaceable, and the plurality of pressing springs 43 are configured to urge the holding rail 42 downward toward the conveying surface 40A of the feed chain 40. Yes.

  The upper lip plate 12 is provided with a guide 5 for guiding the grains flowing down from the upper portion of the handling cylinder 20 toward the stock side of the harvested cereal as the handling cylinder 20 rotates toward the handling cylinder 20. Yes. That is, the upper lip plate 12 is also used as a guide tool connecting portion that enables the guide tool 5 to be attached.

[Configuration of guide device]
As shown in FIGS. 2 to 7, the guide tool 5 is disposed on the upper lip plate 12 so as to be positioned above the harvested cereal cocoon along the transport direction of the harvested cereal mash held and transported by the sandwiching and transporting mechanism 4. It is detachably attached to the lower edge side via a presser 15 and a mounting bolt 16.

The guide tool 5 includes a main guide plate 50 and a sub guide plate 51 which are both flexible so that they can be displaced inward and outward of the handling chamber.
The main guide plate 50 is made of polyurethane rubber having intermediate properties between rubber and plastic, has rubber elasticity from high temperature region to low temperature region, wear resistance, and excellent mechanical strength. is doing. In other words, it is superior in tensile stress to normal natural rubber, has a higher Young's modulus than natural rubber (it is difficult to stretch), and has a lower Young's modulus (easily stretched) than plastics such as nylon and polycarbonate. ing.

The sub guide plate 51 is made of a synthetic resin material such as polyurethane or polyester, is thinner than the main guide plate 50, is formed in the same shape as the main guide plate 50, and is handled by the main guide plate 50. The chamber 10 is configured to cover the entire range from the upper end to the lower end on the inner side and the range from the front end to the rear end.
The main guide plate 50 having a large thickness is provided with a shape-retaining property capable of maintaining a posture that extends obliquely downward so that the lower end side faces the inner side of the handling chamber 10 with respect to the upper lip plate 12. A restoring force larger than that of the auxiliary guide plate 51 is provided. The sub-guide plate 51 having a small thickness does not have such a shape-retaining property, but is supported from below by the main guide plate 50, so that the lower end side of the guide tool 5 faces the inner side of the handling chamber 10. The posture extended diagonally downward is maintained.

As shown in FIGS. 2 to 6, the guide device 5 including the main guide plate 50 and the sub guide plate 51 includes a plate-like presser 15 that is long on the outer surface side of the upper lip plate 12 and in the front-rear direction. The lower end side of the handle barrel 20 is mounted so as to enter the inside of the rotation locus r drawn by the tip of each handle 24 of the handle barrel 20.
And the notch part 5a which permits passage of the tooth-handling 24 of the said handling cylinder 20 is formed in the lower end side of the guide tool 5 of the location which penetrates into the inside of the said rotation locus | trajectory r. The notch 5 a is formed in the same shape at the same location in the grain conveying direction with respect to each of the main guide plate 50 and the sub guide plate 51. This is for guiding the threshing processed product closer to the barrel 20 while avoiding contact.

As shown in FIGS. 3 and 7, the main guide plate 50 and the sub guide plate 51 are respectively positioned on the front side (the lower side in the drawing) in the conveying direction of the harvested cereal by the feed chain 40. Consists of a combination of separate members divided into the front guide portion 5A and the rear guide portion 5B located on the rear side (upper side in the drawing) of the front guide portion 5A before and after the cutting direction of the harvested cereal. Has been.
Of the front guide portion 5A and the rear guide portion 5B, the rear guide portion 5B is formed such that the lower end edge thereof is obliquely raised rearward along the conveying direction of the feed chain 40, as shown in FIG. In addition, the front guide portion 5A is formed in a front rising shape that is inclined so that the lower end edge of the feed chain 40 is away from the upper side toward the front side with respect to the conveying direction of the feed chain 40.
As shown in FIG. 3, the lower end of the front guide portion 5A is attached so that the front end portion has a front rising shape that is continuous with the lower edge 12a of the upper lip plate 12, and is conveyed by the feed chain 40. The ridge group is configured to be fed while gradually narrowing the gap in the clamping direction between the upper surface of the feed chain 40 and the lower end edge of the front guide portion 5A.

  As shown in FIGS. 3, 4 and 7, the notch 5 a formed at the lower end of the front guide 5 </ b> A has a distance d <b> 1 in the front-rear direction of the notch 5 a. It is formed larger than the distance d2 in the front-rear direction of the notch 5a formed at the lower end.

As shown in FIG. 5 to FIG. 7, among the pressers 15, the front-side presser 15 for fastening the front guide portion 5 </ b> A is attached to the upper lip plate 12 as shown in FIG. 5. The lower end 15a is bent at an angle larger than the bending angle of the bent portion of the upper lip plate 12 so that the lower end 15a is located slightly away from the lower end 12a of the upper lip plate 12. As a result, in the vicinity of the lower end 15a of the presser 15, the gap with the upper lip plate 12 is widened so that the swinging operation of the guide device 5 to the lower side is easier than the upward swinging operation. Has been.
That is, the pressing member 15 on the front side shown in FIG. 5 has a contact point portion 15c slightly below the intermediate bending point portion 15b in the vertical direction, and the lower surface of the main guide plate 50 on the outer side of the handling chamber. The main guide plate 50 and the sub guide plate 51 are bent in contact with each other, and are extended away from the upper lip plate 12 as they approach the lower end 15a rather than the contact point portion 15c. An interval is formed between the lower end 15a of the presser 15 and the guide tool 5 is allowed to swing downward.

  Of the presser 15, the presser 15 on the rear side for fastening the rear guide portion 5B is attached to the upper lip plate 12 as shown in FIG. The extension length to the obliquely lower side is shortened so as to be in contact with the guide tool 5 slightly above the lower end 12a of the upper lip plate 12. Accordingly, the lower side of the lower end 15a of the presser 15 is configured to make it easier to swing the guide tool 5 downward than to swing upward.

As shown in FIG. 7, an inclined surface 12 b directed toward the inner side of the handling chamber 10 is formed on the lower edge side near the front end portion of the upper lip plate 12, and near the front end portion of the presser 15. Also on the lower edge side, an inclined surface 15d directed to the inner side of the handling chamber 10 is formed.
That is, the inclined surface 12b provided on the lower edge side near the front end portion of the upper lip plate 12 and the inclined surface 15d formed on the lower edge side of the pressing member 15 on the front side extend in directions away from each other toward the lower end side. The gap between the lower end 12a of the upper lip plate 12 and the lower end 15a of the presser 15 is formed so as to allow a swinging operation of the guide tool 5.
Then, the main guide plate 50 and the sub guide plate 51 of the front guide portion 5A are sandwiched between the inclined surface 12b on the upper lip plate 12 side and the inclined surface 15d on the presser 15 side, and as shown in FIG. The guide plate 50 and the auxiliary guide plate 51 are supported in a state of being directed toward the inner side of the handling chamber 10 along the inclined surface 12b on the upper lip plate 12 side.
Although not shown, the main guide plate 50, the sub guide plate 51, and the presser 15 may be attached to the inner side of the handling chamber 10 of the upper lip plate 12. In this case, the inclined surface 15d of the presser 15 is in contact with the inclined surface 12b on the upper lip plate 12 side so that the lower end side is located on the inner side of the handling chamber 10 with respect to the inclined surface 12b on the upper lip plate 12 side. It will be attached in a state of widening the interval.

[Other Embodiment 1]
In the above embodiment, as shown in FIGS. 3 to 7, the guide tool 5 is applied to the outer surface side of the upper lip plate 12 using the pressing tool 15 and the bolt 16, and the guide tool 5 is bent in a dogleg shape. However, the present invention is not limited to this, and as shown in FIG. 8, the main guide plate 50 and the sub guide plate 51 of the guide device 5 remain flat without using the presser 15. You may comprise so that it may be applied to the outer surface side of the upper lip board 12 and fixed using the volt | bolt 16. FIG.
In this case, the main guide plate 50 of the guide 5 maintains a state in which the main guide plate 50 is in a posture of being extended obliquely downward so that the lower end side faces the inner side of the handling chamber 10 in a free state. The thickness or material is set so as to obtain a structure having such shape retaining strength.
Although not shown, when the main guide plate 50 and the sub-guide plate 51 are attached in a state of being flat against the outer surface of the upper lip plate 12 in this manner, a flat plate along the outer surface of the upper lip plate 12 is separately provided. You may make it support from the downward side using the shaped pressing tool 15. FIG.

[Second embodiment]
In the above embodiment, the sub guide plate 51 is formed to have the same shape and the same size as the main guide plate 50 and covers the entire inner side of the handling chamber 10 of the main guide plate 50. However, the present invention is not limited thereto, and the vertical length of the sub guide plate 51 is configured to be slightly shorter than the vertical length of the main guide plate 50, and the upper end of the sub guide plate 51 is longer than the upper end of the main guide plate 50. It is attached in a state where it is located on the lower side, or the lower end of the sub guide plate 51 is attached at the same position as the lower end of the main guide plate 50 or extending below the lower end of the main guide plate 50. Also good.
Further, the vertical length of the sub guide plate 51 is formed slightly longer than the vertical length of the main guide plate 50, and the lower end position of the sub guide plate 51 is the same position as the lower end of the main guide plate 50, or the main guide. The auxiliary guide plate 51 is attached so as to extend downward from the lower end of the plate 50, or the vertical length of the auxiliary guide plate 51 is formed to have the same dimension as that of the main guide plate 50. The lower end position may be the same position as the lower end of the main guide plate 50 or a structure that is attached and used so as to extend below the lower end of the main guide plate 50.

[3 of another embodiment]
In the above embodiment, a structure in which only one sub guide plate 51 is stacked on the inner side of the handling chamber 10 of the main guide plate 50 is shown. However, the present invention is not limited to this. For example, as shown in FIG. A plate 51 is formed in the same shape as the main guide plate 50, and covers a first sub guide plate 51a that covers the entire inner side of the handle chamber 10 of the main guide plate 50, and a chamber for the first sub guide plate 51a. 10 may be configured by overlapping two sheets with the second sub guide plate 51b positioned on the inner side.
In this case, as shown in FIG. 10, the first sub guide plate 51 a that covers the entire inner surface of the handling chamber 10 of the main guide plate 50 and the second sub guide provided only on the front side of the main guide plate 50. Not only the combination with the plate 51b, the first sub guide plate 51a and the second sub guide plate 51b may be the same shape and the same size, or combinations of different sizes or shapes may be combined. It may be configured. Although not shown, three or more auxiliary guide plates 51 may be stacked.

[4 of another embodiment]
In the above embodiment, the main guide plate 50 is formed of a flexible member made of polyurethane rubber having intermediate characteristics between rubber and plastic, and the sub guide plate 51 is a synthetic resin material such as polyurethane or polyester. However, the main guide plate 50 and the sub guide plate 51 are not limited to such materials, and are elastically deformed when the amount of supplied cereals is large. Arbitrary shape-retaining properties can be used as long as they allow the passage of the bag and can maintain a posture that extends obliquely downward so that the lower end side of the guide tool 5 is directed toward the inner side of the handling chamber 10. Material can be used.
For the main guide plate 50 and the sub guide plate 51, it is desirable to select and use materials suitable for the respective functions. However, the main guide plate 50 and the sub guide plate 51 may be made of the same material. Further, the auxiliary guide plate 51 may be configured to hold the posture as the guide tool 5 only by the restoring force of the main guide plate 50 using a material having no restoring force. Absent.

[5 of another embodiment]
In the said embodiment, what comprised the main guide plate 50 and the sub guide plate 51 by the separate member divided | segmented into the front guide part 5A and the back guide part 5B in the front and back of the conveyance direction of a harvested cereal rice cake, respectively. Although shown, it is not restricted to what was comprised separately in this way, You may comprise the main guide plate 50 and the subguide plate 51 by what was integrally formed from the front end side to the rear end side. .
Further, as described above, the structure is not limited to two divisions between the front guide portion 5A and the rear guide portion 5B, but may be divided into three or more divisions.

[6 of another embodiment]
In the above-described embodiment, the guide device 5 and the pressing device 15 are provided on the outer side of the handling chamber 10 of the upper lip plate 12. However, the present invention is not limited to this, and FIG. 8 may be attached to the inner side of the handling chamber 10 of the upper lip plate 12 using the same guide tool 5 and presser 15 as shown in FIG.

  The present invention can be applied not only to the self-removing combine as shown in the embodiment but also to a stationary threshing apparatus.

DESCRIPTION OF SYMBOLS 4 Nipping-conveying mechanism 5 Guide tool 5A Front guide part 5B Back guide part 5a Notch part 10 Handling chamber 12 Upper lip board 12b Inclined surface 15 Holding tool 15d Inclined surface 20 Handling cylinder 24 Handling tooth 50 Main guide plate 51 Sub guide plate 51a 1st 1 sub guide plate 51b 2nd sub guide plate r rotation locus

Claims (13)

A holding conveyance mechanism for holding and conveying the stock side of the harvested cereal meal is provided, and a handling cylinder that is rotationally driven so as to perform threshing processing on the tip side of the harvested grain meal conveyed by the holding conveyance mechanism is provided in the handling chamber. A threshing apparatus equipped with a guide device that guides the grains that flow toward the stocker side of the harvested grain culm with the rotation of the handling cylinder,
The guide device includes a main guide plate and a sub guide plate that are displaceable both inward and outward of the handling chamber,
The main guide plate has a restoring force larger than that of the sub guide plate positioned on the side of the interior of the main guide plate.
The sub guide plate is configured to be detachable from the main chamber separately from the main guide plate, and the lower end position is the same as the lower end of the main guide plate, or below the lower end of the main guide plate. Threshing apparatus characterized by being extended.   The threshing apparatus according to claim 1, wherein the sub guide plate is provided so as to cover a range from the upper end to the lower end of the main guide plate on the side in the handling chamber.   The threshing apparatus according to claim 1 or 2, wherein the sub guide plate is configured to have a size covering the entire surface or substantially the entire surface of the main guide plate on the side of the handling chamber.   The sub guide plate is formed to have a length in a direction along the conveying direction of the harvested cereal meal by the holding and conveying mechanism shorter than the main guide plate, and corresponds to the front side of the guide tool in the harvested cereal meal conveying direction. The threshing apparatus of Claim 1 or 2 provided in the range to do.   The threshing device according to any one of claims 1 to 3, wherein the sub guide plate is composed of a plurality of sheets that are stacked on the side of the main chamber in the handling chamber.   The sub-guide plate includes a first sub-guide plate provided over the entire length of the guide tool in a direction along the conveying direction of the harvested cereal by the holding and conveying mechanism, and the inside of the handling chamber of the first sub-guide plate The threshing apparatus according to claim 5, further comprising a second sub guide plate provided only in a range corresponding to the front side of the guide tool in the cutting grain haul conveyance direction.   The main guide plate and the sub guide plate are provided such that lower ends thereof enter the inside of a rotation locus drawn by a tip of a tooth treatment provided in the treatment cylinder as the treatment cylinder rotates. The threshing apparatus as described in any one of Claims 1-6 in which the notch which accept | permits passage of the said tooth handling is formed in the lower end part which entered the inside of the rotation locus.   Of the cutout portions formed in the main guide plate and the sub guide plate, a cutout portion provided on the front side in the conveyance direction of the harvested cereal by the clamping conveyance mechanism is provided on the rear side in the conveyance direction. The threshing device according to claim 7, wherein the threshing device is formed wider than a notch.   The guide tool includes a front guide portion located on the front side in the conveying direction of the harvested cereal meal by the holding and conveying mechanism, and a rear guide portion located on the rear side of the front guide portion, and the rear guide portion The lower edge is formed along the conveyance direction by the clamping conveyance mechanism, and the lower edge of the front guide portion is closer to the front side of the extension line to the front side of the lower edge of the rear guide portion. The threshing device according to any one of claims 1 to 8, wherein the threshing device is formed in a front rising shape inclined so as to be separated upward.   The guide tool is constituted by a front guide part positioned on the front side in the direction along the conveying direction of the harvested cereal meal by the holding and conveying mechanism, and a rear guide part located on the rear side, which is a separate body from the front guide part. The threshing apparatus according to claim 1, wherein the threshing apparatus is divided into two parts.   The sub guide plate and the main guide plate are attached to the upper lip plate of the handling chamber with a pressing tool in a state where the sub guide plate and the main guide plate are overlapped inside and outside, and the upper lip In each of the lower part of the plate and the lower part of the pressing member, an inclined surface extending obliquely downward toward the inner side of the handling chamber is formed, and an inclined surface formed in the lower part of the upper lip plate; The threshing device according to any one of claims 1 to 10, wherein the threshing device is formed such that an interval with an inclined surface formed at a lower portion of the presser is gradually widened toward a lower end side.   The threshing apparatus according to any one of claims 1 to 11, wherein the main guide plate and the sub guide plate are made of different materials.   The threshing apparatus according to any one of claims 1 to 12, wherein the sub guide plate is thinner than the main guide plate.

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