JP2012039958A - Threshing and selecting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the generation of stained granules caused by rust even when a base material of a constituent member is exposed by the wear or peeling-off of a water-repellent material when the treating material-contacting surface of a component constituting a selection part is covered with the water-repellent material.SOLUTION: In the general-purpose combine harvester 1 equipped with a threshing chamber 7 for threshing grains from grain culms, and a selection part 12 for selecting a treated product leaked down from the threshing chamber 7, at least a part of the constituent component (e.g. a grain pan 19) of the selection part 12 is formed of a stainless steel material 19a, and covered with the water-repellent material 19b in the treating material-contacting surface thereof.

Description

  The present invention relates to a threshing / sorting device such as a combine for threshing and sorting grains.

  A threshing sorter such as a combine is provided with a handling room for threshing grains from the stem and a sorting unit for sorting a processed material leaked from the handling room. And the sorting part of a general threshing sorter is configured using an oscillating sorter that oscillates and sorts the processed material leaked from the handling room, but in the sorting unit using the oscillating sorter, When sorting a wet material with a lot of moisture, there is a problem that the flow of the processed material on the swinging sorter is deteriorated and the working efficiency and sorting accuracy are lowered.

  In view of this, it has been proposed to cover a part or the whole of the treatment object contact surface of the swing sorter with a water repellent material such as a fluororesin (see, for example, Patent Document 1). In this way, even if the wet material is rich in moisture, the water repellent material promotes the flow in the oscillating sorter, so that it is possible to suppress a reduction in work efficiency and sorting accuracy.

JP 2006-271315 A

  However, the water-repellent material may be worn or peeled off due to contact or collision with the processed material. In particular, in a general-purpose combine that puts all the cutting stalks into the handling room, the processed material from the handling room collides with the rocking sorter (Glen pan) vigorously, so that the water-repellent material is partially peeled off by the impact. There is. And if the base material (for example, steel plate) of the rocking sorter is exposed due to wear or peeling of the water repellent material, rust is generated on the base material, which may cause dirt.

The present invention was created for the purpose of solving these problems in view of the above circumstances, and sorts a handling room for threshing grains from stems and a processed material leaked from the handling room. In the threshing and sorting apparatus including the sorting unit, the at least part of the constituent parts of the sorting unit is formed of a stainless material, and the treated product contact surface is covered with a water-repellent material.
The sorting unit includes a swing sorting body for swinging and sorting the processed material leaked from the handling chamber. The swing pan is formed of a stainless steel material and repels the treated product contact surface. It is characterized in that it is covered with an aqueous material and is detachable from the swinging sorter.

According to the first aspect of the present invention, even if the processed material contact surface of the component constituting the sorting portion is covered with the water repellent material, even if the base material of the component component is exposed due to wear or peeling of the water repellent material. Since the base material is made of a stainless material that is not easily rusted, it is possible to prevent the generation of dirt caused by rust.
Further, according to the invention of claim 2, since the grain pan of the rocking sorter is made of stainless steel, and the treated product contact surface is covered with the water repellent material, the grain pan is supposed to be worn due to wear or peeling of the water repellent material. Even if the base material is exposed, it is possible to prevent generation of dirt due to rust. Moreover, since the Glen pan is configured to be detachable from the swinging sorter, when the water repellency is deteriorated due to wear or peeling of the water repellent material, the water repellency can be restored by replacing the Glen Pan. Can do. In particular, in a general-purpose combine that puts all the cutting stalks into the handling chamber, the processed material from the handling chamber collides with the Glen pan vigorously, and the water repellent material is likely to peel off due to the impact. It is remarkable.

It is a left view of a general purpose combine. It is a left view which shows the inside of a threshing part. It is sectional drawing of a Glen pan.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In FIG. 1, 1 is a general purpose combine (threshing sorting apparatus), and the general purpose combine 1 includes a harvesting unit 2 that harvests stem stalks, a threshing unit 3 that threshs and sorts grains from the trimmed stems, and A grain tank 4 for storing the selected grain, an operation unit 5 on which an operator gets on, and a crawler type traveling unit 6 are provided.

  As shown in FIG. 2, the threshing unit 3 includes a handling chamber 7 into which all the cutting stalks are thrown in, and a handling tooth 8 that is rotatably mounted in the handling chamber 7 and protrudes from the outer periphery thereof. A handling cylinder 9 that sheds the grain, a receiving net 10 that is arranged along the lower side of the handling cylinder 9 and that allows grains to leak from the handling chamber 7, and the handling chamber 7 that does not leak from the receiving net 10. An outlet 11 that discharges the waste that has reached the end, a sorting unit 12 that sorts the grains that have leaked from the receiving net 10, a terminal part of the sorting unit 12, and a discharge port 11 of the handling chamber 7 that are in communication. And a dust discharger 13 that guides the discharge discharged from the side of the unit 12 and the handling chamber 7 to the outside of the machine.

  The sorting unit 12 includes a swing sorting body 14 that swings and sorts the grains that have leaked from the receiving net 10, a compressed air fan 15 that raises a sorting wind in front of and below the swing sorting body 14, and the first thing. The first spiral 16 for collecting the first thing, the first flow plate 16a for guiding the first thing to the first spiral 16, the second spiral 17 for collecting the second thing, and the second number for guiding the second thing to the second spiral 17. A flow plate 17a and a second sorting fan 18 for raising a second sorting wind in front of the second spiral 17 are provided. And the first thing collected by the first helix 16 is stored in the grain tank 4 via an unillustrated cereal cylinder, and the second thing collected by the second helix 17 is a second reducing cylinder (not shown). It is reduced on the rocking sorter 14 via the.

  The swing sorter 14 includes a corrugated grain pan 19 that sequentially conveys the grains leaked from the receiving net 10 to the rear, a chaff sheave 20 that screens the grains with fins 20a behind the pan, and the chaff sheave. From the grain sieve 21 that screens the grain that has leaked from the sieve screen 21 with the crimp net 21 a, the straw rack 22 that screens the chaff sheave 20 and the processed material reaching the end of the grain sieve 21 with the rack (tooth plate) 22 a, and the grain sieve 21 A front-side oscillating flow plate 23 that guides the first thing that has leaked to the first spiral 16 (first flow plate 16a) and a second thing that has leaked from the strok rack 22 is the second spiral 17 (second flow plate 17a). And a rear oscillating flow plate 24 that is guided to the rear by a drive mechanism (crank mechanism, cam mechanism, etc.) (not shown) at a predetermined cycle. It is adapted to be continued to reciprocally swing.

  In the general-purpose combine 1 according to the embodiment of the present invention, at least a part of the components of the sorting unit 12 is formed of a stainless steel material, and the treated product contact surface is covered with a water repellent material such as a fluorine-containing paint. In this case, even if the processed material contact surface of the component constituting the sorting unit 12 is covered with the water repellent material, even if the substrate of the component is exposed due to wear or peeling of the water repellent material, Since rust-resistant stainless steel is used, it is possible to prevent the generation of dirt due to rust.

  For example, as shown in FIG. 3, in the present embodiment, the grain pan 19 of the swing sorter 14 is formed of a stainless steel material 19a, and the treated product contact surface is covered with a water repellent material 19b. In this way, even if the base material of the grain pan 19 is exposed due to wear or peeling of the water repellent material 19b, it is possible to prevent generation of dirt due to rust. In particular, in the general-purpose combine 1 according to this embodiment in which all the cutting pods are put into the handling chamber 7, the processed material from the handling chamber 7 may collide with the Glen pan 19 vigorously, and the water repellent material 19b may be peeled off by the impact. Therefore, the effect of the present invention is remarkable.

  In addition, since the stainless steel material 19a has a low surface slipperiness, if it is left as it is, the processed material may be slippery and the sorting performance may be deteriorated. However, on the other hand, the coating of fluorine-containing paint is better than the steel plate. Therefore, there is an advantage that the fluorine-containing paint is difficult to peel off. In addition, since fluorine-containing paint is relatively expensive, it is conceivable to coat only the surface (processed material contact surface) without painting both the front and back surfaces of the sorting part component, but the base material is stainless steel 19a. If it is, since it can also prevent that a back surface rusts, the quality fall by the rust of a back surface can also be prevented. Although it is conceivable to use a rust-resistant plated steel sheet instead of the stainless steel material 19a, the plated steel sheet may be peeled off due to the substrate temperature becoming high when the paint containing fluorine is baked and applied. It is difficult to apply.

  Further, in the present embodiment, the Glen pan 19 configured as described above is configured to be detachable from the swinging sorter 14. For example, as shown in FIG. 3, the Glen pan 19 is fixed to the swinging sorter 14 via a detachable screw 25. In this way, when the water repellency is deteriorated due to wear or peeling of the water repellent material 19b, it is possible to restore the water repellency by replacing with a new grain pan 19.

  In the present embodiment, the first flow plate 16a, the second flow plate 17a, the fins 20a, the crimp net 21a, the rack 22a, the front swing flow plate 23, and the rear swing flow plate 24 are also made of stainless steel. The treated product contact surface is covered with a water repellent material. In this case, the first flow plate 16a, the second flow plate 17a, the fins 20a, the crimp net 21a, the rack 22a, the front oscillating flow plate 23, and the rear oscillating flow plate 24 are supposed to be worn or peeled off. Even if the base material is exposed, it is possible to prevent generation of dirt due to rust.

  According to the present embodiment configured as described, in the general-purpose combine 1 including the handling room 7 for threshing the grain from the stem and the sorting unit 12 for sorting the processed material leaked from the handling room 7, Since at least a part of the component parts of the portion 12 is made of stainless steel and the treated product contact surface is covered with a water repellent material, the base material of the component parts is exposed due to wear and peeling of the water repellent material. Even so, it is possible to prevent the generation of dirt caused by rust.

  Further, the sorting unit 12 includes a swing sorting body 14 that swings and sorts the processing material leaked from the handling chamber 7, and the grain pan 19 of the swing sorting body 14 is formed of a stainless steel material 19a and the processing thereof is performed. Since the object contact surface is covered with the water repellent material 19b and is configured to be detachable from the swinging sorter 14, even if the base material of the Glen pan 19 is exposed due to wear or peeling of the water repellent material 19b, It is possible to prevent the generation of dirt caused by. Moreover, since the glen pan 19 is configured to be detachable from the swinging sorter 14, the water repellency performance based on the replacement of the glen pan 19 when the water repellency performance is deteriorated due to wear or peeling of the water repellent material 19b. Can be restored. In particular, in the general-purpose combine 1 that throws all the cutting stalks into the handling chamber 7, the processed material from the handling chamber 7 collides with the Glen pan 19 vigorously, and the impact is likely to peel off the water repellent material 19b. The effect of the present invention is remarkable.

Needless to say, the present invention is not limited to the above-described embodiment, and can be appropriately changed within the scope of the claims.
For example, although the Glen pan 19 of the above embodiment is a corrugated plate, when it is difficult to process a stainless steel into a corrugated plate, the Glen pan 19 may have a shape other than the corrugated plate (for example, a flat plate).

DESCRIPTION OF SYMBOLS 1 General-purpose combine 2 Cutting part 3 Threshing part 7 Handling room 12 Sorting part 14 Oscillating sorter 16a First flow plate 17a Second flow plate 19 Glen pan 19a Stainless steel material 19b Water repellent material 20 Chaff sheave 20a Fin 21 Glen sheave 21a Crimp net 22 Stroke Rack 22a Rack 23 Front oscillating flow plate 24 Rear oscillating flow plate

Claims (2)

In a threshing and sorting apparatus comprising a handling room for threshing grains from the stem and a sorting unit for sorting the processed material leaked from the handling room,
A threshing sorting apparatus characterized in that at least a part of the constituent parts of the sorting section is made of a stainless steel material, and its treated product contact surface is covered with a water repellent material.   The sorting unit includes a swing sorting body that swings and sorts the processed material that has leaked from the handling chamber, and the grain pan of the swing sorting body is formed of a stainless material, and the contact surface of the treated product is a water repellent material. The threshing sorter according to claim 1, wherein the threshing sorter is further configured to be detachable from the swing sorter.

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