JP3979980B2 - Thresher receiving net - Google Patents

Description

  The present invention provides a plurality of first bar members made of sheet metal arranged in parallel in a circular arc shape along the circumferential direction of the handling cylinder and at a predetermined interval in the axial direction of the handling cylinder, A plurality of second beam members having a circular shape in a cross section arranged in parallel with each other in a bar shape along the axial direction and spaced apart from each other by a predetermined interval in the circumferential direction of the handling cylinder; and an outer frame member surrounding the beam members It is related with the receiving net | network of the threshing apparatus currently provided with the grid form.

Conventionally, in the receiving net of the threshing apparatus as described above, the edge on the handling cylinder side in each of the first crosspiece members is located on the handling cylinder side than the edge on the handling cylinder side in each of the second crosspiece members. As described above, each second beam member is made to penetrate each first beam member (see, for example, Patent Document 1).
JP 2000-4657 (paragraph number 0013, FIGS. 2 to 8)

  In the above configuration, since the edge on the handling cylinder side in the first crosspiece member made of sheet metal is located on the handling cylinder side from the edge on the handling cylinder side in the second crosspiece member, the crop during the threshing process is It is easy to contact the edge of the handling cylinder side edge of the first crosspiece member. Therefore, when the type of crop to be threshed is beans that are easily damaged, the product value is reduced due to the beans coming into contact with the edge of the handle barrel side edge of the first rail member and being damaged. It was easy to invite.

  The objective of this invention is suppressing the fall of the commercial value resulting from contact with the edge of a receiving net | network at the time of threshing processes, such as legumes which are easy to be damaged.

As means for solving the above-described problems, in the present invention, a plurality of sheet metal plates arranged in parallel in a circular arc shape along the circumferential direction of the handling cylinder and at a predetermined interval in the axial center direction of the handling cylinder. A plurality of second crosspiece members having a circular shape in section and arranged in parallel with each other at a predetermined interval in the circumferential direction of the treatment cylinder. In the receiving net of the threshing device that is formed in a lattice shape with an outer frame member that surrounds the crosspiece member,
The barrel side of the first rail member is such that an edge on the barrel side of the second rail member is positioned closer to the barrel side than an edge of the first rail member on the barrel side. Projecting the second crosspiece member from the edge of the
The first and second edges located at both ends of the outer frame member in the axial direction of the handling cylinder are respectively provided with inner and outer vertical walls that are spaced apart from each other by a predetermined distance in the axial direction of the handling cylinder. The vertical wall is bent and formed into a U-shaped cross-section having a peripheral wall connecting the edges on the handling cylinder side, and the vertical wall inside the first edge and the second edge is formed on the peripheral wall. A plurality of engaging portions that allow the second crosspiece member to be joined to a non-opposing surface that does not face the handling cylinder are formed, and the second crosspiece members are respectively connected to the first edge portion and the second edge portion. It is joined to the non-facing surface of the peripheral wall.

  According to this configuration, the crop during the threshing process is handled on the barrel side of the first rail member by the barrel side edge of the second rail member located on the barrel side of the first barrel member. Since the contact of the edge with the edge is suppressed, damage due to the contact with the edge is effectively avoided.

Furthermore, since each of the second crosspiece members is joined to the non-facing surface of the first edge and the peripheral wall of each peripheral wall of the first edge and the second edge, each of the second crosspieces is connected to the first edge and the second edge. It is possible to avoid inconvenience that the crop during the threshing treatment comes into contact with the edge of the end portion of each second crosspiece member and is damaged when it is joined to the surface of the peripheral wall of each of the two edge portions facing the treatment drum. .

  Also, during the threshing process, which occurs when the first edge and the second edge are formed into a flat plate shape having only a peripheral wall by bending the first edge and the second edge into a U-shaped cross section. It is possible to avoid the inconvenience that the crops contact and damage the inner and outer edges of each peripheral wall.

  By the way, in order to avoid inconvenience that the crop under threshing is in contact with and damages the inner and outer edges of each peripheral wall, the first edge and the second edge formed in a U-shaped cross section are formed. Although it is conceivable to construct each second cross member over the inner vertical walls, in this case, the end of each second cross member is attached to the inner vertical wall at the first edge and the second edge. Since only the alignment is performed, it is difficult to position each second cross member in the radial direction of the handling cylinder with respect to the first edge and the second edge, and the strength of the entire receiving net is weakened.

On the other hand, in the present invention, at the first edge portion and the second edge portion, a plurality of members that allow the second crosspiece member to be joined to the inner vertical walls thereof on the non-opposing surface of the peripheral wall with the handling cylinder. And the second crosspiece member is joined to the non-opposing surface of each peripheral wall of the first edge and the second edge with the handle cylinder, so that the first edge and the second edge It is easy to position each second cross member in the radial direction of the handling cylinder with respect to the portion, and the strength of the entire receiving net is increased.

Therefore, even if the crop to be threshed is a legume that is easily damaged , the edge of each first cross member or the edge, first edge and second edge of each second cross member at the time of threshing the crop It is possible to suppress a decrease in commercial value due to damage caused by contact with the edge of the part, and to improve the production and strength of the receiving net.

  FIG. 1 shows a longitudinal side view of a threshing device mounted on a normal combine harvester for harvesting beans, and this threshing device has a screw-shaped handling cylinder 1 arranged on the upper part of the threshing device 2. While threshing is performed on the whole of the harvested cereal straw supplied as a threshing product from the feeder conveyor 3, the threshing product is transferred rearward and arranged side by side along the lower half of the handling cylinder 1. The six receiving nets 4 leak beans and sliced straws that have been made into a single grain by threshing treatment and prevent the leakage of long straws. The mechanism 5 sifts and sorts the single-grain beans and cut straw that have leaked from each receiving net 4, and the Kara 6 equipped at the front and lower side of the rocking sorting mechanism 5 causes the sorting wind to generate each receiving net. The single-grain beans and sliced straw that leaked from 4 are sorted by wind, and the back of Karatsu 6 The deployed first screw 7 conveys the single-grain beans obtained by sieving and wind sorting toward the right side, and the second screw 8 deployed behind the first screw 7 is used for sieving and sorting. A bucket conveyor 9 connected to the transfer end of No. 1 screw 7 is conveyed to the right side by a mixture of unbranched beans with branches and cut straws selected by wind power sorting. The single-sized beans that have been transported by the above are transported toward the inlet of the grain tank (not shown), and the second reduction screw 10 connected to the transport end of the second screw 8 is transported by the second screw 8. Re-threshing is performed on the mixed material, and the mixed material after the re-threshing treatment is reduced and conveyed toward the swing sorting mechanism 5, and from the dust feeding port 11 formed at the rear of the swing sorting mechanism 5, Long straw that was prevented from leaking by each receiving network 4 And it is configured to discharge the like sieving and cutting straw and straw dust removed in the air classifiers in the outside.

  As shown in FIGS. 1 to 7, each receiving net 4 is made of a sheet metal that is formed in an arc shape along the circumferential direction of the handling cylinder 1 and arranged in parallel with a predetermined interval in the axial direction of the handling cylinder 1. A plurality of first crosspiece members 12 and a plurality of second crosspiece members 13 having a circular cross-section arranged in parallel with each other in a bar shape along the axial direction of the handling cylinder 1 and at a predetermined interval in the circumferential direction of the handling cylinder 1. And an outer frame member 14 that surrounds the crosspiece members 12 and 13, and is formed in a lattice-shaped cone cave receiving net.

  In these receiving nets 4, the edge 13 a on the side of the handling cylinder 1 in each of the second crosspiece members 13 is closer to the side of the handling cylinder 1 than the edge 12 a on the side of the handling cylinder 1 in each of the first crosspiece members 12. As shown in FIG. 2, about half of the first crosspiece member 12 on the side of the handling cylinder 1 from the end edge 13a on the side of the handling cylinder 1 to the center of the second crosspiece member 13 is handled from the end edge 12a on the side of the handling cylinder 1. It protrudes toward the barrel 1 side.

  In addition, the first edge 15 and the second edge 16 located at both ends of the outer frame member 14 in the axial direction of the handling cylinder 1 are vertically arranged on the inner and outer sides that are spaced apart from each other by a predetermined distance in the axial direction of the handling cylinder 1. The walls 15A, 16A, 15B, and 16B and the peripheral walls 15C and 16C that connect the edges of the vertical walls 15A, 16A, 15B, and 16B on the side of the handle cylinder 1 are bent and formed in a U-shape. The inner vertical walls 15A and 16A in the first edge portion 15 and the second edge portion 16 are allowed to join the second crosspiece member 13 to the non-opposing surfaces 15a and 16a that do not face the handling cylinder 1 in the peripheral walls 15C and 16C. A plurality of engaging portions 15b, 16b are formed, and the second crosspiece member 13 is connected to the non-circumferential walls 15C, 16C of the first edge portion 12 and the second edge portion 13 through the engaging portions 15b, 16b. Bonded to opposing surfaces 15a and 16a To have.

  With the above-described configuration, the beans during the threshing process are first processed by the handle cylinder side edge 13a of the second beam member 13 located on the handle cylinder 1 side of the handle bar side edge 12a of the first beam member 12. Since contact with the edge 12b of the edge of the one barrel member 12 on the side of the handling cylinder 1 is suppressed, damage due to contact with the edge 12b is effectively avoided.

  Further, since each of the second crosspiece members 13 is joined to the non-opposing surfaces 15a, 16a of the peripheral walls 15C, 16C of the first edge portion 15 and the second edge portion 16 with respect to the handling cylinder 1, the second crosspiece member 13 Beans during the threshing process, which are generated when each of the 13 is joined to the opposing surfaces 15c, 16c of the peripheral walls 15C, 16C of the first edge 15 and the second edge 16 with the handling cylinder 1 are each second. It is possible to avoid the inconvenience of being damaged by coming into contact with the edge 13b at the end of the crosspiece member 13.

  Further, the first edge 15 and the second edge 16 are bent into a U-shaped cross section, so that the first edge 15 and the second edge 16 are formed in a flat plate shape having only the peripheral walls 15C and 16C. Inconvenience that the beans during the threshing process come into contact with the inner and outer edges of the peripheral walls 15C and 16C and are damaged can be avoided.

  As a result, even if the beans that are easily damaged are threshed, the edges 12b of the first crosspiece members 12, the edges 13b of the second crosspiece members 13 and the first edge 15 and the first ripening at the time of threshing the beans. It is possible to suppress a decrease in commercial value due to damage caused by contact of the two edges 16 with each edge.

  Moreover, each of the second crosspiece members 13 is connected to the first edge 15 via a plurality of engaging portions 15b and 16b formed on the inner vertical walls 15A and 16A at the first edge 15 and the second edge 16, respectively. Further, since the second edge 16 is joined to the non-facing surfaces 15a, 16a of the handling cylinder 1 with respect to the handling cylinder 1, each second crosspiece member 13 in the radial direction of the handling cylinder 1 with respect to the first edge 15 and the second edge 16 is used. Can be easily positioned, and the strength of the receiving net 4 can be increased.

  Reference numeral 17 a shown in FIG. 3 is a joining edge of the outer frame member 14 joined in the circumferential direction of the handling cylinder 1 in order to enable bolt connection between the receiving nets 4 arranged in parallel in the circumferential direction of the handling cylinder 1. The reference numeral 18 shown in FIG. 2 is a support frame that receives and supports the receiving net 4.

[Another Example]
Other embodiments of the present invention will be listed below.
[1] As a threshing device, the feed chain arranged on one side of the threshing is used to carry and hold the stock side of the harvested cereal cocoon, and the threshing process is performed only on the tip side of the chopped cereal meal introduced into the threshing device. It may be mounted on a self-removing combine that is configured to be applied.
[2] As the receiving net 4, an end edge 13 a on the handling cylinder 1 side in a predetermined one of the second crosspiece members 13, or an end edge on the handling cylinder 1 side in a predetermined range in each second crosspiece member 13 A predetermined one of the second crosspiece members 13 or each second crosspiece member 13 so that 13a is positioned closer to the handlebar 1 side than the edge 12a of the first crosspiece member 12 on the handlebar 1 side. The predetermined range may be projected from the edge 12a of the first crosspiece member 12 on the side of the handling cylinder 1 to the handling cylinder 1 side.
[3] The amount of protrusion of the second cross member 13 toward the handling cylinder 1 with respect to the first cross member 12 in the receiving net 4 can be variously changed.
[4] The crop is threshed processed utilizing受網4 of this, it may be a non-for example buckwheat legumes.

Longitudinal side view of threshing device Longitudinal front view of threshing device Perspective view showing the structure of the receiving network Vertical side view showing the structure of the receiving network Longitudinal side view of main part showing joined state of first crosspiece member and second crosspiece member in receiving net Longitudinal front view of the main part showing the joining state of the first crosspiece member and the second crosspiece member in the receiving net Longitudinal front view of the main part showing the joining state of the second crosspiece member and the outer frame member in the receiving net

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Handling cylinder 12 1st crosspiece member 12a End edge 13 2nd crosspiece member 13a End edge 14 Outer frame member 15 1st edge 15A Vertical wall (inner side)
15B Vertical wall (outside)
15C Peripheral wall 15a Non-facing surface 15b Engagement part 16 2nd edge part 16A Vertical wall (inner side)
16B Vertical wall (outside)
16C Peripheral wall 16a Non-facing surface 16b Engagement part

Claims (1)

A plurality of first bar members made of sheet metal arranged in a circular arc shape along the circumferential direction of the handling cylinder and spaced apart from each other by a predetermined interval in the axial direction of the handling cylinder, and in the axial direction of the handling cylinder A grid comprising a plurality of second beam members having a circular shape in cross section and arranged in parallel with each other at a predetermined interval in the circumferential direction of the handling cylinder, and an outer frame member surrounding the beam members A receiving net for a threshing device formed in a shape,
The barrel side of the first rail member is such that an edge on the barrel side of the second rail member is positioned closer to the barrel side than an edge of the first rail member on the barrel side. Projecting the second crosspiece member from the edge of the
The first and second edges located at both ends of the outer frame member in the axial direction of the handling cylinder are respectively provided with inner and outer vertical walls that are spaced apart from each other by a predetermined distance in the axial direction of the handling cylinder. The vertical wall is bent and formed into a U-shaped cross-section having a peripheral wall connecting the edges on the handling cylinder side, and the vertical wall inside the first edge and the second edge is formed on the peripheral wall. A plurality of engaging portions that allow the second crosspiece member to be joined to a non-opposing surface that does not face the handling cylinder are formed, and the second crosspiece members are respectively connected to the first edge portion and the second edge portion. A receiving net for a threshing device joined to the non-facing surface of the peripheral wall .

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