JP4073566B2 - Grain scattering prevention device for threshing part in combine. - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to the structure of a threshing portion in a combine, and in particular, the scattering of the grains of the threshing portion in a combine provided between the upper and lower sides of a handling chamber inlet plate and a takeover plate provided on the conveyance end side of the handling depth conveyance body. The present invention relates to a prevention device.
[0002]
[Prior art]
As shown in FIGS. 10 (a) and 10 (b), the cereals harvested by the pre-processing unit of the combine are lifted and conveyed to the threshing unit 16, and can be rotated into the handling chamber by the threshing unit 16. A handling chamber inlet plate 40 is arranged below the entrance side of the handling chamber so that the cereals are smoothly fed into the handling chamber, After taking over the cereals that have been lifted and transported to the feed chain, the end of the handling depth transporter in the direction of cereal transporting can be supplied to the threshing part 16 side while supporting the cereals from below. A rubber takeover plate 42 is provided. The transfer plate 42 is provided on an upper portion of the handling chamber inlet plate 40 so as to overlap the handling chamber inlet plate 40 and to be slidable with respect to the handling chamber inlet plate 40.
[0003]
[Problems to be solved by the invention]
However, according to the above-described conventional example, the handling chamber inlet plate 40 has a curved cross section along the outer peripheral surface of the handling cylinder 17 (see FIG. 10B). On the other hand, the flat plate-like takeover plate 42 is not in close contact with each other, and a gap 43 is generated between the two, and there is a problem that the threshed grain may be scattered from the gap 43.
[0004]
The present invention has been made to solve such a problem, and the object of the present invention is to provide a transfer plate provided on the terminal side in the grain conveying direction of the handling depth conveying body, and a handling chamber inlet side. It is an object of the present invention to provide a grain scattering prevention device for a threshing portion in a combine that can eliminate the gap between the provided treatment room entrance plate and prevent the threshed grain from jumping out.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the invention described in claim 1 conveys the cereals harvested by the pretreatment unit (12) toward the threshing unit (16) by the handling depth conveyance body (28), In the threshing section (16), the cereals are handled along the handling chamber inlet plate (40) disposed on the inlet side of the handling chamber (15) in which the handling cylinder (17) is pivotally mounted. In the combine (C) that is fed into and threshed,
In order to hold the grain tip side from below, the handling depth transport body (28) is extended from the conveyance end side toward the handling chamber inlet plate (40), and to the handling chamber inlet plate (40). A takeover plate (42) arranged to overlap vertically along the grain feeding direction;
A grain scattering prevention member (44) made of an elastic body provided on the side facing the takeover plate (42) of the chamber entrance plate (40),
The grain scattering prevention member (44) is closely arranged to be slidable with respect to the takeover plate (42).
[0006]
The invention according to claim 2 is characterized in that the grain scattering preventing member (44) is attached only to the conveyance start end side of the handling chamber inlet plate (40).
[0007]
[Action]
According to the invention specific matter, in the present invention, the cereals harvested in the pretreatment section (12) are conveyed toward the threshing section (16) by the handling depth conveying body (28) and feed chain, and the threshing section In (16), the threshing is carried out by the handling cylinder (17) pivoted in the handling chamber (15), and the handling chamber inlet plate (40) is arranged on the inlet side of the handling chamber (15). The takeover plate (42) extends from the conveyance end side of the treatment depth conveyance body (28) toward the treatment chamber inlet plate (40). The hand-over plate (42) is disposed on the upper portion of the handling chamber inlet plate (40) so as to overlap the handling chamber inlet plate (40). (42) serves to smoothly carry the cereal into the handling room (15).
[0008]
Thus, the handling chamber inlet plate (40) has a grain scattering prevention member (44) made of an elastic body slidable with respect to the takeover plate (42) on the side facing the takeover plate (42). ) Are closely arranged, and the grain scattering prevention member (44) does not form a vertical gap between the handling chamber inlet plate (40) and the takeover plate (42). The grain threshed by the threshing section (16) from the gap is prevented from jumping outward.
[0009]
In addition, the code | symbol in the parenthesis mentioned above is for contrasting drawing, Comprising: The invention specific matter of this invention is not limited at all.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected and demonstrated to the same member as the prior art example mentioned above.
[0011]
FIG. 1 is a view showing the appearance of a combine to which the present invention is applied. In FIG. 1, the combine C has a pre-processing unit 12 that can be raised and lowered with respect to the traveling machine body 10 at the front part of the traveling machine body 10. The traveling machine body 10 is supported by a pair of left and right crawler traveling devices 14 and 14. The upper part of the traveling machine body 10 has a threshing portion 16 for threshing the harvested cereal and selecting the threshed grain, and a driver seat 18 at the front thereof. A multi-steering lever 32 capable of turning the machine body and raising / lowering the pre-processing unit 12 by operating a single lever, a main transmission lever 33 capable of shifting the traveling speed, and the like are provided.
[0012]
FIG. 2 shows a side view of the combine C, and the pretreatment unit 12 has a transmission case 22 having a proximal end fixed to the support shaft 20 and extending toward the lower front part of the traveling machine body 10. The hydraulic cylinder 36 connected to the intermediate portion of the transmission case 22 is supported to be movable up and down based on expansion and contraction. In addition, the pre-processing unit 12 includes a divider 23 fixed to the pre-processing frame 27 for weeding the uncut cereals, a pulling device 24 for causing the sown cereals, and a stock source of the cereals. A cutting blade device 25 for cutting, a scraping and conveying device 26 for scraping the cut cereal, and a length of the cereal that has been transferred to the rear of the machine body and taken over automatically. A handling depth transport body 28 that is adjusted to a proper handling depth and transported toward the threshing portion 16 by the threshing feed chain 30 is provided. The handling depth transport body 28 includes a handling depth tip transport body 28 a and a handling depth stock transport body 28 b that respectively support the head and stock of the cereal, and a handling depth attached in the vicinity of the engine 35. It is moved up and down integrally by the motor 38 to feed the corn straw into the feed chain 30 while appropriately adjusting the handling depth of the corn straw.
[0013]
As described above, the combine C is shifted through the transmission 34 by the driving force of the engine 35 and the crawler traveling device 14 is driven to move in the field. On the other hand, each device of the preprocessing unit 12 is operated by power transmitted from the transmission 34 into the transmission case 22. The up-and-down operation of the pretreatment unit 12 is performed by the hydraulic cylinder 36, and the threshing unit 16 also operates during this time. The handling depth transport body 28 is lifted around the support shaft 20 by a handling depth motor 38.
[0014]
By the way, the threshing section 16 is provided with a handling chamber 15 to which cereals are supplied by a feed chain 30, and a handling cylinder 17 is mounted on the interior of the handling chamber 15. The cereal grains supplied along the handling chamber inlet plate 40 (see FIG. 3) arranged on the entrance side of the handling chamber 15 are threshed by the tooth handling 17a provided on the outer peripheral portion of the handling cylinder 17, and the grains The granules are leaked by the receiving net 19 and sorted by the swing sorting unit 21 into grains and waste straws.
[0015]
Here, the present invention extends from the conveyance end side of the handling depth conveying body 28 toward the handling chamber inlet plate 40 so as to hold the tip side of the cereal bud from below, and is applied to the handling chamber inlet plate 40. A takeover plate arranged vertically overlapping along the grain feeding direction, and a grain scattering prevention member made of an elastic body provided on the side facing the takeover plate of the handling chamber inlet plate 40 I have it. Moreover, this grain scattering prevention member is closely arrange | positioned so that sliding with respect to the said inheriting board is possible.
[0016]
In FIG. 2 described above, on the terminal side of the handling depth stocker transport body 28b in the grain transporting direction, a rubber tip is held from below to hold the tip side of the grain straw supplied to the handling chamber 15 by the feed chain 30. A flat plate-like takeover plate 42 is made to extend along the feeding direction of the cereal, and this takeover plate 42 overlaps with the chamber inlet plate 40 at an upper portion of the chamber inlet plate 40. Has been placed.
[0017]
Further, as shown in FIGS. 3A and 3B, the handling chamber inlet plate 40 has a curved cross section along the outer peripheral surface thereof at a predetermined distance from the handling cylinder 17 below the handling cylinder 17. Is formed. Further, the transfer plate 42 is slidably mounted on the upper portion of the handling chamber inlet plate 40 so as to follow the curved surface and overlaps with the handling chamber inlet plate 40.
[0018]
In the present embodiment, the gap 43 between the curved handling chamber inlet plate 40 and the flat plate-like takeover plate 42 is closed, and the grain jumping out from the direction of FIG. In order to prevent scattering, an elastic body 44 such as a rubber or sponge as a grain scattering preventing member is provided on the side of the handling chamber inlet plate 40 facing the transfer plate 42, and this elastic body 44 is attached to the transfer plate 42. Closely slidably arranged.
[0019]
As a result, the elastic body 44 fills the gap 43 between the handling chamber inlet plate 40 and the takeover plate 42, and the end side of the takeover plate 42 in the grain conveying direction is lowered by its own weight as shown in FIG. Thus, the grain is prevented from entering between the handling chamber entrance plate 40 and the takeover plate 42 because it abuts on the handling chamber entrance plate 40.
[0020]
Furthermore, as shown in FIG. 4, the size of the elastic body 44 is such that the distance from the starting end side of the handling chamber inlet plate 40 in the grain conveying direction to the inlet of the handling chamber cover 46 is l (el). According to experiments, it is preferable that the elastic body 44 has a length of about 1/3 · l. In the case of such a dimensional ratio, the end side of the takeover plate 42 in the grain transporting direction descends by its own weight as shown in the drawing and comes into contact with the handling chamber inlet plate 40. In addition, at the entrance of the handling chamber cover 46, the handling chamber is used in order to smoothly feed the grains into the handling chamber 15 and to prevent the grains in the handling chamber 15 from jumping outside. A rubber plate 47 is suspended from the cover 46.
[0021]
5 (a) and 5 (b) show the size of the elastic body 44 when the takeover plate 42 moves to the most start side in the grain conveying direction along with the movement of the handling depth carrier 28. The embodiment in the case where the length is equal to the overlap amount of the chamber inlet plate 40 is shown.
[0022]
According to this, the elastic body 44 can close the gap formed between the handling chamber inlet plate 40 and the takeover plate 42 and can prevent the grain from jumping out. Become. Further, in this embodiment, since the elastic body 44 is attached only to the start end side of the handling chamber inlet plate 40 in the grain conveying direction, the handling chamber inlet plate is moved when the takeover plate 42 moves in the direction of the handling chamber 15. Since a space is formed between the transfer plate 40 and the takeover plate 42, the front end side of the takeover plate 42 can be freely moved in the vertical direction by this space, and the grains popping out from the direction A in the drawing A are taken over. It does not jump out to the upper surface of 42, but will temporarily accumulate in that space.
[0023]
6 (a) and 6 (b) show an embodiment in which the elastic body 44 is attached over the entire length and the entire width from the starting end side of the handling chamber inlet plate 40 in the grain transporting direction to the vicinity of the entrance of the handling chamber cover 46. Show.
[0024]
According to this, the elastic body 44 completely eliminates the gap formed between the terminal end side of the takeover plate 42 in the grain conveying direction and the handling chamber inlet plate 40, and the grain that has jumped out of the handling chamber 15. However, since it comes into contact with the elastic body 44 and is returned to the handling chamber 15, grain leakage and grain jump-out are prevented.
[0025]
7 (a) and 7 (b) show that the elastic body 44 is positioned directly below the terminal side of the takeover plate 42 in the grain transporting direction when the handling depth transport body 28 is moved to the deepest position. An embodiment in which the body 44 is attached to the handling chamber inlet plate 40 is shown.
[0026]
According to this, even when the transfer plate 42 moves to the maximum extent in the direction opposite to the grain conveying direction, it is possible to prevent the grains from jumping out between the handling chamber inlet plate 40 and the transfer plate 42. .
[0027]
8 (a) and 8 (b) show an embodiment in which the elastic body 44 is attached only to the start end side of the handling chamber inlet plate 40 in the grain conveying direction.
[0028]
According to this, the elastic body 44 forms a predetermined space between the takeover plate 42 and the handling chamber inlet plate 40 behind the starting end side of the handling chamber inlet plate 40 in the grain conveying direction. This space ensures the freedom of movement of the transfer plate 42 in the vertical direction and does not narrow the entrance of the handling chamber 15. Moreover, according to this embodiment, compared with the case where the elastic body 44 is made over the full length of the handling chamber inlet plate 40 in the grain conveying direction, the mold cost is reduced.
[0029]
FIG. 9 shows an embodiment in which a brush 48 is attached in place of the elastic body 44 on the start end side of the handling chamber inlet plate 40 in the grain conveying direction.
[0030]
According to this, it is possible to prevent a gap formed between the handling chamber inlet plate 40 and the takeover plate 42 by the brush 48 and to prevent the grain from jumping out.
[0031]
【The invention's effect】
As described above, according to the first aspect of the present invention, the handling depth is extended from the conveyance end side of the conveyance body toward the handling chamber inlet plate, and along the grain feeding direction with respect to the handling chamber inlet plate. It has a takeover plate that is arranged so as to overlap vertically, and a grain scattering prevention member made of an elastic body provided in the handling chamber inlet plate, and the grain scattering prevention member can slide with respect to the takeover plate By being closely arranged, it is possible to eliminate the gap between the takeover plate and the handling chamber inlet plate and prevent the grain from jumping out from the gap.
[0032]
According to the invention described in claim 2, by attaching the grain scattering prevention member only to the conveyance start end side of the handling chamber inlet plate, the takeover plate and the handling chamber inlet plate behind the conveyance start end side of the handling chamber inlet plate are provided. A predetermined space is formed between them, and the degree of freedom of movement of the transfer plate in the vertical direction can be secured by this space, so that the handling chamber entrance is not narrowed.
[Brief description of the drawings]
FIG. 1 is a diagram showing the appearance of a combine to which the present invention is applied.
FIG. 2 is a side view of the above.
FIG. 3A is a cross-sectional side view of the handling chamber inlet side, showing an embodiment of an elastic body provided between the handling chamber inlet plate and the takeover plate; FIG. FIG.
FIG. 4 is a cross-sectional side view of the handling chamber inlet side, showing an embodiment of an elastic body provided between the handling chamber inlet plate and the takeover plate.
FIG. 5A is a cross-sectional side view of the handling chamber inlet side, showing an embodiment of an elastic body provided between the handling chamber inlet plate and the takeover plate, and FIG. FIG.
6A is a cross-sectional side view of the handling chamber inlet side, and shows an embodiment of an elastic body provided between the handling chamber inlet plate and the takeover plate; FIG. FIG.
7A is a cross-sectional side view of the handling chamber inlet side, and shows an embodiment of an elastic body provided between the handling chamber inlet plate and the takeover plate; FIG. FIG.
FIG. 8A is a cross-sectional side view of the handling chamber inlet side, showing an embodiment of an elastic body provided between the handling chamber inlet plate and the takeover plate; FIG.
FIG. 9 is a cross-sectional side view of the handling chamber inlet side, showing an embodiment in which a brush is provided between the handling chamber inlet plate and the takeover plate.
FIG. 10A is a sectional side view of the conventional handling chamber inlet side, showing the positional relationship between the handling chamber inlet plate and the takeover plate, and FIG. 10B is a sectional front view thereof. It is.
[Explanation of symbols]
C Combine 12 Pretreatment part 15 Handling room 16 Threshing part 17 Handling cylinder 28 Handling depth conveyance body 40 Handling room inlet plate 42 Transfer plate 43 Gap 44 Elastic body 48 Brush

Claims (2)

The cereals harvested in the pretreatment unit are conveyed toward the threshing unit by the handling depth conveying body, and in the threshing unit, the handling chamber entrance disposed on the entrance side of the handling chamber in which the handling cylinder is pivotally mounted. In the combine for feeding the cereal cake along the plate into the handling room and threshing it,
In order to hold the tip side of the grain straw from below, it is extended from the conveyance end side of the handling depth carrier toward the handling room inlet plate, and is vertically moved along the grain feeding direction with respect to the handling room inlet plate. A takeover plate arranged in an overlapping manner,
A grain scattering prevention member made of an elastic body provided on the side facing the takeover plate of the handling chamber inlet plate,
The grain scattering prevention member is slidably arranged with respect to the takeover plate,
The grain scattering prevention apparatus of the threshing part in the combine characterized by the above-mentioned. The grain scattering prevention member is attached only to the conveyance start end side of the handling chamber inlet plate,
The grain scattering prevention apparatus of the threshing part in the combine of Claim 1 characterized by the above-mentioned.

Images