JP3701141B2 - Threshing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention belongs to the technical field of a threshing apparatus provided in a combine or the like.
[0002]
[Prior art]
In general, this seed threshing device supports a handling cylinder having a plurality of teeth on its outer peripheral surface so as to be rotatable through a support shaft facing the pedicle conveyance direction, and on the lower outer peripheral surface of the treatment cylinder. Although the arc-shaped receiving net is arranged along, since the conventional receiving net is formed by knitting wire rods in a lattice shape, it is not allowed to easily entangle with sawdust, There was an inconvenience that clogging occurred during threshing of wet materials.
[0003]
[Problems to be solved by the invention]
Therefore, it has been proposed to reduce the entanglement of sawdust etc. by forming the receiving net with a perforated plate (including resin) having a large number of leakage holes, but the shape of the leakage holes is Since it is square as in the conventional case, it is not possible to promote leakage of the wetting material and the like, and as a result, clogging may still occur during threshing of the wetting material and the like.
[0004]
[Means for Solving the Problems]
The present invention has been created in order to solve these problems in view of the above circumstances, and a handling cylinder having a plurality of teeth that protrude from the outer peripheral surface faces the pedicle conveyance direction. In a threshing apparatus that is supported rotatably via a support shaft and has an arc-shaped receiving net disposed along the lower outer peripheral surface of the handling cylinder, the receiving net is arranged in the rotation direction of the handling cylinder and in the conveying direction of the pedicles. When forming with a perforated plate in which a large number of leakage holes are formed, each leakage hole is formed into a slanted long hole that is biased in the direction of rotation of the cylinder toward the end of the cylinder, and the end of each leakage hole. The threshing apparatus is characterized in that the position of the part is matched with the passing position of the tooth-handling . In other words, because the leakage hole of the receiving net is an inclined long hole with a receding angle, it is possible to promote leakage from the leakage hole while guiding the handled object with the inclination of the leakage hole, As a result, it is possible to prevent clogging as much as possible even during threshing of a wetting material or the like. In addition, even if debris induced by the inclination of the leakage hole accumulates at the end of the leakage hole, the teeth can be removed to prevent clogging.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Next, a first embodiment of the present invention will be described based on the drawings. In the drawings, reference numeral 1 denotes a threshing device provided in a combine. The threshing device 1 threshs a threshing feed chain 3 that holds and conveys stalks along a handling chamber 2, and a threshing process for the conveying stalks of the threshing feed chain 3. A handling cylinder 4 to which the handling cylinder 4 has threshed, and a workpiece to be processed from the receiving net 5 to the end of the handling chamber without leaking. A processing cylinder 6 for granulating, a second receiving net 7 for leaking a workpiece to be processed into a single grain, and an oscillating flow for sequentially swinging and conveying the workpiece leaked from the receiving net 5 Plate 8, filter sorting body 9 that filters and sorts the object to be treated at the end of the oscillating flow plate 8, tang fan 10 that carefully sorts the workpiece leaked from the filter sorter 9 in the first sorting wind, and fine selection The first helix 11 for horizontally conveying the finished grain, and the grain carried to the end of the first helix 11 is raised to a grain tank (not shown) The cereal rack 12 to be sent, the processing object that has not leaked from the filter sorting body 9 and the processing object that has leaked from the second receiving network 7 are filtered and sorted, and the straw rack 13 has leaked. A second sorting fan 14 that wind-sorts the object to be treated with the second sorting air, a second spiral 15 that horizontally conveys the second object subjected to the wind sorting, and a workpiece that has been conveyed to the end of the second spiral 15 is reduced. The second reduction cylinder 16 is configured, the dust exhaust fan 17 that discharges swarf and the like to the outside of the machine at the end position of the straw rack 13, the waste chain 18 that sandwiches and conveys the threshing-treated waste to the rear part of the machine. However, these basic configurations are conventional.
[0006]
The handling cylinder 4 is rotatably supported in the handling chamber 2 via a support shaft 19 that faces the pedicle conveyance direction, and rotates in a predetermined direction by power supplied from a power transmission path (not shown). That is, when the threshing feed chain 3 conveys and supplies the tip side of the stem to the handling chamber 2, a plurality of teeth 20 protruding from the outer peripheral surface of the handle 4 come into contact with the stem and rotate. Occasionally grains (including debris) are threshed from the stems.
[0007]
On the other hand, the receiving net 5 is formed in an arc shape so as to follow the lower outer peripheral surface of the handling cylinder 4. In the present embodiment, however, a crimp net obtained by knitting a wire in a lattice shape as in the prior art. Instead, it is formed using a perforated plate in which a number of leakage holes 5a are punched.
[0008]
Now, when the receiving net 5 is formed by using a perforated plate in which a large number of the leakage holes 5a are punched out, the inclined holes 5a are inclined so that the leakage hole 5a is biased in the rotation direction of the cylinder toward the end of the cylinder. Is formed. That is, since the leakage hole 5a of the receiving net 5 is an inclined long hole having a receding angle, the material to be handled is guided by the inclination of the leakage hole 5a, and the leakage from the leakage hole 5a is promoted. As a result, the occurrence of clogging can be prevented as much as possible even during threshing of wet materials and the like.
[0009]
In addition, the leakage hole 5a is formed so that the end position thereof matches the passing position of the tooth handling teeth 20, so that the wastes induced by the inclination of the leakage hole 5a can be removed from the leakage hole 5a. Even if it accumulates at the end portion, it can be removed by the tooth handling 20 to prevent clogging.
[0010]
In the structure configured as described above, the treatment cylinder 4 having a plurality of teeth 20 projecting on the outer peripheral surface thereof is rotatably supported via a support shaft 19 facing the pedicle conveyance direction. An arc-shaped receiving net 5 is provided along the lower outer peripheral surface. When the receiving net 5 is formed using a perforated plate in which a number of leaking holes 5a are punched, Since the lower hole 5a is formed into an inclined long hole that deviates in the direction of rotation of the cylinder toward the end of the cylinder, that is, an inclined long hole having a receding angle, the handling object is inclined by the inclination of the leakage hole 5a. Leakage from the leakage hole 5a can be promoted while being guided, and as a result, occurrence of clogging can be prevented as much as possible even during threshing of a wet material or the like.
[0011]
Further, since the end position of the leakage hole 5a is adjusted to the passing position of the tooth handling 20, even if debris induced by the inclination of the leakage hole 5a accumulates at the end of the leakage hole 5a, It is possible to prevent clogging by removing with the tooth handling 20.
[0012]
Of course, the present invention is not limited to the above-described embodiment. For example, in the above-described embodiment, a thin metal plate material is assumed as the porous plate, but a resin plate material can also be used. Moreover, it goes without saying that the leakage hole may be either a round long hole or a square long hole, and further, the leakage hole is changed into various shapes as in the second to seventh embodiments shown in the drawings. Hereinafter, second to seventh embodiments will be described with reference to the drawings.
[0013]
5b is the leakage hole of the second embodiment, and the leakage hole 5b has the same basic shape (front view) as the leakage hole 5a of the first embodiment. The lower hole 5b is formed not by punching but by burring. Therefore, at the edge of the leakage hole 5a, a burring 5c protruding in a round shape toward the non-handling cylinder is formed. In this case, not only is it possible to prevent the edge from being worn by the burring 5c, but the overall strength of the receiving net 5 can be increased by using the burring 5c also as a reinforcing rib. Since it protrudes in a rounded shape on the non-handling cylinder side, it is possible to avoid the catching of the debris and to exhibit good debris removal performance.
[0014]
Reference numeral 5d denotes the leakage hole of the third embodiment. The leakage hole 5d is formed by burring as in the second embodiment, but is formed in the leakage hole 5d of the third embodiment. The burring 5e protrudes in a rounded shape toward the handle cylinder side. That is, it is the same as in the second embodiment that the wear of the edge is prevented by the burring 5e and that the overall strength of the receiving net 5 is increased by using the burring 5e also as a reinforcing rib. Since 5c protrudes toward the handling cylinder side, it is possible to give an appropriate resistance to the material to be handled, and as a result, it is possible to promote the separation of deposits such as branch boughs and to improve the single grain performance.
[0015]
Further, 5f is a leakage hole of the fourth embodiment, and the edge of the leakage hole 5f is formed with a burring 5g protruding to the handling cylinder side as in the third embodiment. In the fourth embodiment, since the sawtooth-shaped unevenness 5h is formed at the tip of the burring 5g, it is possible to further promote the separation of the deposits such as branch branches.
[0016]
In addition, 5i is the leakage hole of the fifth embodiment, and the leakage hole 5i is formed so that the hole width is not uniform and the hole width is wide at the end side as in the above embodiments. As a result, not only is it allowed to promote the leakage of the handling material guided to the terminal side of the leakage hole 5i, but also the possibility of clogging by preventing the accumulation of debris on the terminal side. Can be reduced.
[0017]
Further, 5j is a leakage hole of the sixth embodiment, and the leakage hole 5j has the same basic shape as the leakage hole 5a of the first embodiment, but in the sixth embodiment, the leakage hole The cutting edge 5k is formed by crushing the end edge of 5j. In other words, even if debris is caught on the terminal end of the leakage hole 5j, it can be cut with the cutting blade 5k. In addition, clogging associated with the accumulation of debris can be prevented.
[0018]
In addition, 5m is a leakage hole of the seventh embodiment, and a cutting edge 5n is formed at the end edge of the leakage hole 5m similarly to the sixth embodiment. Since it is formed in a saw-tooth shape, not only is it allowed to exhibit good cutting performance, but the presence of the cutting blade 5n can be appealed and attention can be urged during cleaning.
[Brief description of the drawings]
FIG. 1 is an internal perspective view of a threshing apparatus.
FIG. 2 is an internal perspective view of a handling chamber.
FIG. 3 is an exploded perspective view of a receiving net.
FIG. 4 is an explanatory view showing a shape of a leakage hole and a tooth handling position.
FIG. 5A is a perspective view showing a leakage hole according to a second embodiment, and FIG. 5B is a cross-sectional view.
6A is a perspective view showing a leakage hole of a third embodiment, and FIG. 6B is a cross-sectional view.
7A is a perspective view showing a leakage hole of the fourth embodiment, and FIG. 7B is a cross-sectional view.
FIG. 8 is a front view showing a leakage hole according to a fifth embodiment.
9A is a front view showing a leakage hole according to a sixth embodiment, FIG. 9B is an AA sectional view, and FIG. 9C is an AA sectional view showing another example;
10A is a front view showing a leakage hole according to a seventh embodiment, FIG. 10B is a sectional view taken along line BB, and FIG. 10C is a sectional view taken along line BB showing another example;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Threshing apparatus 2 Handling chamber 4 Handling cylinder 5 Receiving net 5a Leakage hole 5c Burring 19 Support shaft 20 Teeth

Claims (1)

A handle barrel having a plurality of teeth on its outer peripheral surface is rotatably supported via a support shaft facing the pedicle conveyance direction, and an arc-shaped receiving net is formed along the lower outer peripheral surface of the handle barrel. In the arranged threshing device, when the receiving net is formed of a perforated plate in which a large number of leakage holes are formed in the rotation direction of the barrel and in the direction of transporting the stems , each leakage hole is handled to the end of the barrel. A threshing device, wherein the threshing device is formed in a slanted elongated hole biased in the trunk rotation direction, and the end portion position of each leakage hole is matched with the passing position of the tooth handling teeth .

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