JP5437117B2 - Threshing device - Google Patents

Description

  The present invention relates to a threshing apparatus for threshing threshing cereals supplied to a handling room by rotating a handling cylinder in the handling room.

  The threshing device threshs the threshing cereal supplied to the handling room by rotating the handling cylinder in the handling room. The handling cylinder of the threshing device described in Patent Document 1 has a structure in which the front and rear side frames are connected by a bar-like cross member, and the handle is projected outwardly from the cross member. It is rotatably supported in the handling room. However, this handling cylinder may not be able to rotate smoothly due to the threshing culm being caught by the crosspiece member or the rotating shaft. Moreover, since the cereals that have entered the handling cylinder are not processed, unhandled items may occur.

  Therefore, Patent Document 2 discloses a handling cylinder in which the crosspiece members are closed with a sealing plate so that the threshing cereals are not caught on the crosspiece member or the rotation shaft.

  As shown in FIG. 11, the handling cylinder described in Patent Document 2 integrally fixes a sealing plate 969 and a bar 971 as a crosspiece member, and further, a frame frame 968 as front and rear side frames, and a sealing plate. 969 and the spike tooth 970 as a tooth handle.

Japanese Patent No. 4148978 Japanese Utility Model Publication No. 60-28837

  However, the handling cylinder of the threshing device described in Patent Document 2 needs to remove the bar 971 and the spike tooth 970 when the sealing plate 969 is removed, which requires time and effort for maintenance.

  In addition, since the sealing plate 969 does not enter the frame frame 968, there is a problem that the processing space between the sealing plate 969 and the inner surface of the unillustrated handling chamber is narrow, and the processing capacity for processing threshing cereals is low. .

  An object of the present invention is to provide a threshing device that can easily perform maintenance of a handling cylinder.

  An object of the present invention is to provide a threshing apparatus in which the processing space between the handling chamber and the handling cylinder is widened to improve the processing ability of the threshing cereal meal.

  The threshing device (10) of the present invention extends in the axial direction with front and rear side frames (52, 53) provided to face a rotating shaft (51) rotatably supported in a handling chamber (40). A frame body having a plurality of crosspiece members (54, 154) connected between the side frames (52, 53) and provided at predetermined intervals in the circumferential direction of the side frames (52, 53) A handling cylinder (50, 250) provided with (70) is provided, and a handling tooth (60) is attached to the crosspiece member (54,154), covering at least a part between the crosspiece members (54,154). Plate-shaped shielding members (61, 161, 261, 361) are provided, and the shielding members (61, 161, 261, 361) are arranged at positions on the inner diameter side of the outer peripheral surface of the crosspiece members (54, 154). It is characterized in that it is detachably attached to the frame body (70).

  In the threshing apparatus (10) of the present invention, the shielding members (61, 161, 261, 361) located on both sides of the crosspiece member (54,154) are connected to the crosspiece member (54) by a common attachment member (62). , 154).

  The said shielding member (261) in the threshing apparatus (10) of this invention has the recessed part (261a) dented in the said rotating shaft (51) side.

  In the threshing device (10) of the present invention, since the shielding member (61, 161, 261) is detachably attached to the frame body (70), only the shielding member (61, 161, 261) is handled ( 50, 250) can be quickly removed, and maintenance can be performed easily and promptly. Moreover, since the threshing apparatus (10) of this invention has attached the shielding member (61,161,261) to the frame body (70) in the position of an inner diameter side rather than the outer peripheral surface of a crosspiece member (54,154). Moreover, the processing chamber formed between the shielding member (61, 161, 261) and the inner surface of the handling chamber (40) can be widened, and the processing capacity of the threshing cereal can be improved.

  In the threshing device (10) of the present invention, the shielding members (61, 161, 261) located on both sides of the crosspiece members (54, 154) are attached to the crosspiece members (54, 154) by a common attachment member (62). In this case, the shielding members (61, 161, 261) located on both sides of the crosspiece members (54, 154) can be removed at a time, and maintenance can be performed easily and quickly.

  In the threshing device (10) of the present invention, when the shielding member (61, 161, 261) has a recess (261) recessed on the rotating shaft (51) side, the shielding member (61, 161, 261). And a processing chamber formed between the inner wall of the handling chamber (40) can be widened, and the processing capacity of the threshing cereals can be improved.

  In addition, the code | symbol in the parenthesis mentioned above is attached | subjected in order to refer drawings, and does not limit a claim at all.

It is sectional drawing along the threshing process direction of the threshing machine which concerns on embodiment of this invention. It is an AA arrow cross section of FIG. It is an enlarged view of the handling cylinder of FIG. It is the figure which expanded the handling cylinder of FIG. 3, and is a figure which abbreviate | omitted the rotating shaft. It is a BB arrow directional cross section of FIG. It is an enlarged view of the part which attaches a shielding board to a crosspiece member in FIG. It is a figure at the time of providing a clearance gap between a crosspiece member and a shielding board, and is a figure equivalent to FIG. It is a figure at the time of using a round pipe for a crosspiece member, and is a figure equivalent to FIG. It is a figure at the time of forming a recessed part in a shielding board, and is a figure equivalent to FIG. It is a figure of the handling cylinder at the time of providing a shielding board only in the process direction front part side of a partition plate. It is a partial exploded perspective view of the conventional handling cylinder.

  Hereinafter, a threshing apparatus according to an embodiment of the present invention will be described with reference to FIGS. 1 to 9.

  FIG. 1 is a cross-sectional view taken along the threshing processing direction of a threshing apparatus mounted on a whole straw input combine that harvests rice or wheat.

  The threshing apparatus 10 of the present embodiment is configured to process a processed material while flowing along the axial direction of the handling cylinder 50, and the handling cylinder 50 is a so-called axial flow type handling cylinder. For this reason, in the following description, the grain processing direction is a direction from left to right in FIG. The front part in the processing direction is the left side in FIG. 1, and the rear part in the processing direction is the right side in FIG.

  In the threshing device 10, the cereals conveyed by the feeder 13 outside the threshing device 10 to the supply port 12 formed in the front part in the processing direction of the handling chamber 40 are transferred to the tooth handling 60 of the handling cylinder 50 by the scraping unit 29. invite. The scraping portion 29 has a structure in which a spiral blade 29b is provided on a conical barrel portion 29a, and constitutes a part of the handling barrel 50. The handling cylinder 50 is rotating, and the cereals are threshed by the tooth handling 60. The processed product obtained by this processing falls into the dust sorting chamber 15 via the receiving net 14. The dust generated during threshing is smoothly guided toward the rear by the dust feed guide 33 because the dust feed guide 33 is adjusted to a position where the dust feed guide 33 is easily conveyed and guided.

  The swing sorter 16 swings the processed material dropped from the handling chamber 40 to the dust sorting chamber 15 and sequentially feeds it to the rear part in the processing direction, and conveys it by the swing moving plate 17 to the chaff sheave 18, rack 19 and straw. Filter through rack 20. Then, the Kara fan 21 and the cross flow fan 22 wind-select the processed products into the first and second products by the sorting wind. The first selected wind is stored in the first basket 23 and the second is stored in the second basket 24.

  The No. 1 spiral 25 conveys the No. 1 item accommodated in the No. 1 basket 23 to the end of the No. 1 bowl 23 and passes it over to a non-illustrated cereal cylinder, and the cereal tank (not shown) is shown by the cereal cylinder. To discharge. The No. 2 spiral 26 conveys the No. 2 object accommodated in the No. 2 cage 24 to the end of the No. 2 cage 24 and passes it to the No. 2 No. reduction cylinder, via the reduced spiral in the reduction cylinder. To reduce to a rocking sorter. During such a threshing process, dust such as sawdust generated in the main body 27 of the threshing device 10 is guided by the sorting wind and discharged from the dust outlet 28 to the outside of the threshing device 10.

  The handling chamber 40 is partitioned and formed in a circular section in the main body 27 by a top plate 41 that covers the upper surface of the handling cylinder 50, a receiving net 14 that covers the lower surface of the handling cylinder 50, and the like. A supply port 12 is formed at the front part of the processing chamber 40 in the grain direction of processing, and the rear end of the feeder 13 enters the supply port 12.

  The handling cylinder 50 includes a rotating shaft 51 that is supported by the front plate 30 and the rear plate 31 of the main body 27 and rotates by driving an engine (not shown). At the front part in the processing direction of the rotating shaft 51, a scraping portion 29 is integrally provided. A pulley 55 that receives a rotational driving force from the engine by a belt is provided at a rear portion in the processing direction of the rotating shaft 51. Near both ends of the rotation shaft 51, a front frame 52 and a rear frame 53 are provided as disk-shaped side frames. The front frame 52 and the rear frame 53 are located inside the scraping portion 29 and the pulley 55. Further, the front frame 52 is configured integrally with the scraping portion 29.

  As shown in FIGS. 1, 5, and 6, the front frame 52 and the rear frame 53 have six cross-sectional squares arranged at equal intervals along the circumferential direction of the front frame 52 and the rear frame 53. They are connected by a crosspiece 54 that is a pipe. Plate-shaped brackets 56 are welded to both ends of the crosspiece member 54. Both ends of the crosspiece member 54 are connected to the front frame 52 and the rear frame 53 by bolts 57 through welded plate-like brackets 56. The outer diameter of the front frame 52 is the same as the outer diameter of the trunk portion 29 a of the scraping portion 29. The rear frame 53 is formed in substantially the same shape as the front frame 52. The crosspiece member 54 connects the front frame 52 and the rear frame 53 so that the outer surface of the crosspiece member 54 coincides with the outer shape of the front frame 52. The front frame 52 is circular, but may be polygonal (for example, hexagonal). In that case, it is preferable that the crosspiece member 54 is positioned at a corner of the polygon.

  In the above configuration, the front and rear side frames 52 and 53 arranged to face the rotation shaft 51 rotatably supported in the handling chamber 40 and the side frames extend in the axial direction and are connected to the side frames. A frame body 70 is formed by a plurality of crosspiece members 54 provided at predetermined intervals in the circumferential direction. The shielding plate 61 is attached so as to drop into the frame body 70 at a position closer to the inner diameter side than the outer peripheral surface of the cross member 54 between the cross members.

  As shown in FIG. 3, a partition plate 58 that is parallel to the front frame 52 and the rear frame 53 is provided at an intermediate portion of the crosspiece member 54. The partition plate 58 is formed in a regular hexagon, which will be described later, and is attached to a bracket 59 provided at an intermediate portion in the longitudinal direction of the crosspiece member 54 with a bolt 71. The rotating shaft 51 passes through the center of the partition plate 58. The partition plate 58 and the rotating shaft 51 are welded.

  In the longitudinal direction of the crosspiece member 54, a plurality of teeth 60 are projected at equal intervals in a direction away from the rotation shaft 51 (outward). The tooth-handling 60 is a round bar and is fixed to the crosspiece member 54 so as to penetrate therethrough. As shown in FIG. 4, the tooth handling teeth 60 are arranged so as to be displaced from each other by the half (1/2) P of the arrangement pitch P of the tooth handling teeth 60 between the adjacent beam members 54.

  As shown in FIGS. 4 to 6, a rectangular shielding plate 61 is provided between the crosspiece members 54 so as to block between the crosspiece members 54. Both sides of the shielding plate 61 along the longitudinal direction (the grain processing direction) are formed with bent portions 61 a that are bent in a direction away from the rotation shaft 51. The adjacent shielding plates 61 are fastened to the crosspiece member 54 with bolts and nuts 62 that pass through the bent portion 61a and the crosspiece member 54 with the bent portions 61a positioned on both sides of the crosspiece member 54. . A plurality of bolts and nuts 62 are provided in the grain processing direction so as to avoid the tooth handling 60.

  As described above, when the shielding members 61 located on both sides of the crosspiece member 54 are attached to the crosspiece member 54 by the bolts and nuts 62 as common attachment members, the shielding members 61 located on both sides of the crosspiece member 54 are temporarily attached. And can be easily and promptly maintained.

  A bent portion 61 b that is bent in a direction away from the rotation shaft 51 is also formed in a portion of the shielding plate 61 that faces the front frame 52 and the rear frame 53. The bent portion 61 b is attached to the front frame 52 and the rear frame 53 by bolts and nuts 63.

  As described above, the shielding plate 61 of the handling cylinder 50 is configured such that the both sides along the crosspiece member 54 and the portions facing the front side frame 52 and the rear side frame 53 are connected to the crosspiece member 54 and the front side frame by the bolts and nuts 62 and 63. 52 and the rear frame 53, the crosspiece member 54, the front frame 52, and the rear frame 53 can be easily removed by removing the bolts and nuts 62, 63. And the maintenance of the threshing apparatus 10 can be easily performed in a short time. Further, since the bolts and nuts 62 and 63 are used to attach the shielding plate 61, the cost can be reduced.

  The shielding plate 61 is provided on the crosspiece member 54, the front frame 52, and the rear frame 53 by bolts / nuts 62, 63, but only one bolt / nut (62 or 63) is used. Also good.

  Furthermore, since the shielding plate 61 closes the gaps between the crosspiece members 54, the threshing grains are not caught on the crosspiece member 54 or the rotating shaft 51, and the movability of the threshing machine can be improved.

  Although the shielding plate 61 completely closes between the crosspiece members 54, a mounting gap G is formed between the crosspiece members 54, as in the shielding plate 161 shown in FIG. 161b may be attached to the front frame 52 and the rear frame 53 with bolts and nuts 63. Even in this case, if the gap G is narrowed, the threshing cereal meal is not caught on the crosspiece 54, and the mobilization rate of the threshing machine can be improved. In this case, the bolt / nut 62 and the bent portion 60a along the longitudinal direction of the shielding plate 61 are unnecessary.

  Furthermore, the crosspiece 54 described above is a pipe having a square cross section. However, as shown in FIG. 8, the crosspiece member may be a pipe 154 having a circular cross section, an oval pipe (not shown), or a solid rod-like member instead of a pipe. do not do.

  The handling cylinder 50 is formed in a cylindrical shape having a regular hexagonal cross section perpendicular to the rotation shaft 51. And the crosspiece members 54 and 154 and the tooth-handling 60 are provided in the corner | angular of a regular hexagon. That is, the shielding plates 61, 161, 261 (to be described later), 361 (to be described later) are attached so as to be dropped into the frame body 70 at a position on the inner diameter side of the outer peripheral surfaces of the cross members 54, 154 between the cross members. It has been. For this reason, as shown in FIGS. 2 and 5, the distance L1 between the shielding plate 61 and the inner wall 40a of the handling chamber 40 is wider than the distance L2 between the outer peripheral surfaces of the crosspiece members 54 and 154 (L1> L2). A wider processing space S can be formed between the handling cylinder 50 and the handling chamber 40 than in the prior art. Therefore, this threshing apparatus 10 can increase the acceptance amount of the threshing cereal meal and can improve the processing capacity of the threshing meal.

  In order to further increase the processing space S between the handling cylinder and the handling chamber, a rotating shaft 51 is provided at an intermediate portion of the shielding plate 261 in the rotation direction of the handling cylinder 250 as in the handling cylinder 250 shown in FIG. If the recessed part 261a recessed in the side is formed, the space | interval of the shielding member 261 and the inner wall of a handling chamber will become wide, and space will become still wider. In this case, it is possible to further increase the amount of threshing per unit time by increasing the acceptance amount of the threshing cereal meal.

  Note that six cross members 54 and 154 are used, but any number may be used as long as there are three or more cross members. However, an even number is preferable because the tooth handling 60 can be shifted from the tooth handling of the adjacent array and the array pitch P by (1/2) P as shown in FIG.

  The shielding plates 61, 161, and 261 described above may be provided only on the front side in the processing direction of the partition plate 58, like the shielding plate 361 shown in FIG. Further, the shielding plates 61, 161, 261 may be provided only on the rear side in the processing direction of the partition plate 58. When the shielding plate 361 is provided only on the front side in the processing direction of the partition plate 58, the partition plate 58 corresponds to the rear side frame of the claims. When the shielding plates 61, 161, and 261 are provided only on the rear side in the processing direction of the partition plate 58, the partition plate 58 corresponds to the front side frame of the claims.

  Providing the shielding plate 361 only on the front side in the processing direction of the partition plate 58 has the following effects. That is, the harvested cereals fed into the threshing device are supplied to the front part in the processing direction of the handling chamber, and are guided to the outer periphery of the handling cylinder by the centrifugal force generated by the rotation of the handling cylinder. Furthermore, it is guided by the shielding plate 361 and moves backward. For this reason, the harvested cereal rice cake does not enter the starting end portion of the handling cylinder and become clogged. Then, the harvested cereal meal becomes a processed product while moving backward. Since the harvested cereal is processed, even if there is no shielding plate 361 at the rear of the handling cylinder, it hardly enters the handling cylinder and wraps around the rotary shaft 51 or the crosspiece member 54. This eliminates the need for a long handling cylinder. Since the length of the shielding plate is short, the weight of the handling cylinder can be reduced. In addition, there is an effect that the harvested cereal meal and the processed product are hardly wound around the handling cylinder.

  When the shielding plate is provided only on the rear side in the processing direction of the partition plate 58, the sorting air of the tang fan 21 flows smoothly to the dust outlet 28 (FIG. 1) by the guidance of the shielding plate, Kernel loss can be reduced.

S ... treatment space, 10 ... threshing device, 40 ... treatment room, 40a ... inner wall of the treatment room, 50 ... treatment cylinder, 51 ... rotating shaft, 52 ... front side frame (side frame), 52a ... outer periphery of front side frame, 53 ... Rear frame (side frame), 53a, outer periphery of the rear frame, 54, beam member, 60, tooth handle, 61, shielding plate (shielding member), 62, bolt and nut (mounting member), 70, frame body, 154 ... Crosspiece member, 161 ... Shield plate (shield member), 250 ... Handling cylinder, 261 ... Shield plate, 261 ... Recess, 361 ... Shield plate

Claims (3)

The front and rear side frames provided opposite to the rotation shaft supported rotatably in the chamber and the side frames extend in the axial direction and have a predetermined interval in the circumferential direction of the side frames. In the threshing apparatus provided with a handling cylinder provided with a frame body having a plurality of crosspiece members provided, and attached to the crosspiece member,
A plate-shaped shielding member that covers at least a part between the crosspiece members is provided, and the shielding member is detachably attached to the frame body at a position on the inner diameter side of the outer peripheral surface of the crosspiece member.
Threshing apparatus characterized by the above. The shielding members located on both sides of the crosspiece member are attached to the crosspiece member by a common attachment member,
The threshing apparatus according to claim 1. The shielding member has a concave portion recessed on the rotating shaft side,
The threshing apparatus according to claim 1 or 2.

Images