JP2018068145A - Threshing device - Google Patents

Abstract

A threshing apparatus capable of threshing while transferring crops in the entire threshing chamber toward the exit side of the threshing chamber at an appropriate feeding speed. A plurality of rasp shaving teeth (22) are provided on the outer peripheral portion of a shaving cylinder (4), the surface of the shaving cylinder (4) being uneven, and the rasp shaving teeth (22) acting to transfer the crops while wiping the crops. A resistance member 63 attached to the top plate 8 is provided. The resisting member 63 resists the movement of the crop positioned between the top plate 8 and the threshing cylinder 4 toward the lower side in the transfer direction. The resistance members 63 intersect the threshing cylinder axis P in plan view, and are arranged along the direction of the threshing cylinder axis P at intervals. [Selection drawing] Fig. 2

Description

  The present invention relates to a threshing apparatus in which a crop is thrown into a handling room and the thrown-in crop is processed by a handling cylinder that can be driven and rotated.

  In the threshing apparatus described above, conventionally, as shown in, for example, Patent Document 1, a crop provided with a dust feeding valve attached to a top plate, and a crop to which turning force is applied by a handling cylinder touches the dust feeding valve, and a threshing processing direction. Some are guided toward the lower side, thereby enabling the transfer of crops to the exit side of the handling room.

JP 2016-39834 A

  In the conventional case, since the tooth handling is rod-like, the crop is not subjected to the transfer action by the tooth handling at the part outside the working range of the dust feeding valve in the peripheral part of the handling cylinder, and the crop is on the outlet side of the handling room. It is hard to flow toward.

  The present invention provides a threshing apparatus capable of threshing treatment while transferring crops in the entire handling room toward the outlet side of the handling room at an appropriate feed rate.

The present invention
A threshing device for threshing a crop put into a handling room,
A handling cylinder that is provided in the handling chamber so as to be capable of driving rotation, and that threshing while transferring the input crop from the entrance side to the exit side of the handling chamber in a direction along the handling cylinder axis;
A top plate provided above the handling cylinder and forming the handling chamber;
On the outer periphery of the handling drum, a plurality of ras handle teeth are provided that have irregularities on the surface and are transferred to the crop while acting on the crop.
A resistance member that is attached to the top plate and that provides resistance to movement toward the lower side in the transfer direction of the crop located between the top plate and the handling cylinder,
The resistance members intersect the handle cylinder axis in a plan view, and are arranged at intervals along the direction of the handle cylinder axis.

According to this configuration, the outer periphery of the handling cylinder is provided with a ras handle that moves while handling the crop, and the crop located in the entire handling chamber is subjected to the transfer action by the ras handling tooth. The crops located in the whole area can be smoothly transferred toward the exit side of the handling room.
When crops are transferred by the rasp teeth provided on the outer periphery of the handling cylinder, the crop feeding speed becomes too fast, but it resists the movement of the crop located between the top plate and the handling cylinder to the lower side in the transfer direction. Since the resistance is given by the member, the resistance member intersects with the barrel axis in a plan view, and is arranged at intervals along the direction of the barrel axis. Therefore, it is possible to adjust the speed by the resistance member so that the feed speed of the crop is handled and the feed speed is suitable for the processing.

  Therefore, the crops in the entire handling barrel can be transferred at a feed rate that can be appropriately handled and processed, and the threshing can be performed smoothly without any handling leakage.

  According to the present invention, the resistance member intersects with an angle of intersection of 75 to 90 degrees with respect to the shaft axis of the handling cylinder in an inclined state in which the upper side portion is positioned closer to the entrance side than the lower side portion in a plan view. It is preferable that

  According to this structure, irrespective of the difference in the property of a crop, the resistance member can provide transfer resistance having an appropriate strength corresponding to the crop.

  According to the present invention, it is preferable that a distance between the rasp handle teeth and the top plate at the outlet side portion of the handle cylinder is narrower than a distance between the rasp handle teeth and the top plate at the inlet side portion of the handle cylinder. It is.

  The crops located at the entrance side of the handling room are in a large volume because the threshing has not progressed much, and the crops transferred to the exit side part of the handling room have a small volume because the threshing has progressed. It becomes a state. According to this configuration, the distance between the rasp teeth and the top plate at the entrance side of the barrel is wider than that at the outlet side, and the interval between the rasp teeth and the top plate at the outlet side of the barrel is the inlet side. Since it is narrower than the interval in the part, the rasping teeth can be applied to crops located in either the entrance side part or the exit side part of the handling room without excess or deficiency, and threshing without handling leakage can be performed smoothly.

  In the present invention, the rising height from the outer peripheral portion of the ras handle teeth at the outlet side portion of the handle cylinder is higher than the rising height from the outer peripheral portion of the ras handle teeth at the inlet side portion of the handle cylinder. High is preferable.

  For crops that are located on the entrance side of the handling chamber and have a large volume, the ras handling tooth that rises from the outer periphery of the barrel is lower than the ras handling tooth located on the exit side of the handling cylinder. To do. For crops that have been transferred to the outlet side of the handling room and have a reduced volume, the ras toothpick that rises higher from the outer periphery of the barrel than the rasping tooth located on the mouth side of the toothing will act. To do. Therefore, the ras handle teeth can be applied to crops located on either the entrance side or the exit side of the handling room without excess or deficiency, and threshing without handling leakage can be performed smoothly.

  According to the present invention, it is preferable that the rising height of the ras handle teeth from the outer peripheral portion is increased stepwise toward the exit side portion of the handling cylinder.

  According to this structure, the threshing without a handling omission can be performed smoothly with a simple structure in which the rising height of the rasp tooth is increased stepwise.

  According to the present invention, it is preferable that the rising height of the ras handle teeth from the outer peripheral portion is the same in a portion from the intermediate portion in the crop movement direction to the end portion on the outlet side in the handling cylinder.

  There is a tendency for many threshing products such as dust to be present at the exit side part of the handling room. However, according to this configuration, the ras tooth handling and the receiving net from the middle part of the handling room to the end part on the exit side. Therefore, the processed threshing product can be easily transferred to the outlet, and the processed threshing product can hardly be retained.

  In the present invention, the distribution density of the ras handle teeth in the circumferential direction of the handle portion at the entrance side portion of the handle barrel is the distribution density of the ras handle teeth in the handle portion circumferential direction of the exit side portion of the handle barrel. Higher is preferred.

  According to this configuration, a harvested product positioned at a large volume in the entrance side portion of the handling chamber can be handled by the rasp handle teeth distributed in the handling cylinder circumferential direction in the handling chamber entrance side portion of the handling barrel. For handling the harvest that is located in a small volume at the exit side part of the handling chamber, the number of ras handling teeth provided at the handling chamber exit side part of the handling cylinder is determined by the part on the handling chamber inlet side of the handling cylinder. Less than the number of rasp teeth.

  According to the present invention, the distribution density of the ras handle teeth in the handle barrel circumferential direction in the entrance-side portion of the handle cylinder is determined by the lap handle circumferential direction of the ras handle teeth in the intermediate portion in the crop transfer direction of the handle cylinder. It is preferable that it is higher than the distribution density.

  According to this structure, the threshing process can be performed with high accuracy without providing more than the required number of rasping teeth at the entrance of the handling chamber on the side of the handling chamber.

  In the present invention, it is preferable that the handling cylinder is configured in a drum type, and the ras handling teeth are provided in the outer peripheral portion in a state in which a clearance is provided in the circumferential direction of the handling cylinder.

  According to this structure, even if a crop enters the gap between the rasp teeth, the drum portion can prevent the crop from entering the inside of the barrel.

  In the present invention, the handling cylinder includes a rotation spindle and a cylindrical drum portion supported so as not to rotate relative to the rotation spindle, and the drum section divides the drum section in a circumferential direction of the handling cylinder. And a support member on which the back side of the divided drum portion is placed and supported in a state of being arranged on the rotating support shaft at intervals in a direction along the shaft axis of the barrel. It is preferable that

  Even if the drum portion is constituted by a plurality of divided drum portions, the drum portion can be made robust by placing and supporting the divided drum portions on the support member on the back surface side. Focusing on this fact, the drum portion is constituted by the divided drum portion, so that the drum portion is constituted by a single plate member that is wound in a cylindrical shape in order to prevent crops from entering the handling cylinder. Compared to the above, the split drum portion can be easily manufactured and inexpensive.

  In the present invention, it is preferable that the support member is constituted by a plurality of divided support members divided in the circumferential direction of the barrel.

  According to this configuration, the support member can be manufactured by being divided into a plurality of divided support members, and can be obtained at a low cost.

  In the present invention, it is preferable that the divided part of the drum portion and the divided part of the support member are displaced in the circumferential direction of the barrel.

  According to this configuration, the support member can be positioned over the back surface of one divided drum portion and the back surface of the other divided drum portion of the adjacent divided drum portions. As a result, even if there is a gap between the divided drum portions, the gap can be closed from the inside of the drum portion by the support member, and it is supported that the crop enters the handling cylinder from the gap between the divided drum portions. This can be prevented by using a member.

  The present invention is preferably provided with a gap filling member for closing a gap between the divided drum portions adjacent to each other in the circumferential direction of the cylinder from the inside of the cylinder.

  According to this configuration, the gap filling member can prevent the crop from entering the inside of the handling cylinder from the gap between the adjacent divided drum portions.

  The present invention includes the handling cylinder provided with a scraping portion provided on the inlet side, and a handling processing unit connected to a terminal portion of the scraping unit and having the ras handling teeth. And a tapered base, provided on the outer periphery of the base, and a spiral blade for scraping the crop into the handling unit, and a terminal end of the outer periphery of the base, A guide member that guides the crop from the spiral blade to the ras handle is provided between the ras handle teeth and the outer periphery of the ras handle teeth located at the crop transfer start end of the handle processor. Is preferred.

  According to this configuration, the crop is scraped and supplied to the handling unit by the spiral blade in the scraping unit, but the crop is guided by the guide member from the spiral blade to the outer periphery of the ras handling tooth. You can avoid getting caught in your teeth.

  In the present invention, it is preferable that the rasp handle tooth is provided with a support portion attached to the outer peripheral portion and a rasp tooth portion attached to the support portion.

  According to this configuration, since the rasp tooth portion can be removed from the support portion that is left attached to the handling cylinder, only the rasp tooth portion can be replaced.

  In the present invention, the support portion includes a first support portion that rises from the outer peripheral portion, a second support portion that rises from the outer peripheral portion in a state of being spaced apart from the first support portion, and the first It is preferable that a receiving portion connected to the upper end portion of the support portion and the upper end portion of the second support portion to receive the rasp tooth portion is provided.

  According to this configuration, since the handling load applied to the rasp tooth portion can be distributed to the first support portion and the second support portion, the rasp tooth portion can be resisted against the handling load while making the support portion lightweight. Can be firmly supported.

In the present invention, a mounting hole for fixing the rasp tooth portion is formed in the first support portion,
It is preferable that a notch portion is formed in a portion of the second support portion that faces the mounting hole.

  According to this configuration, when replacing the rasp tooth portion, the tip end side of the tool is inserted from the outside of the second support portion through the notch portion toward the attachment hole, and the tip end side of the inserted tool is attached to the attachment hole. Since it is possible to employ a method of operating the connecting member by attaching it to a connecting member such as a connecting screw, it is easy to perform replacement work.

  In the present invention, the rasp tooth portion is provided with a mounting seat portion connected to the support portion, and the mounting seat portion is mounted on the receiving portion, and one end of the mounting portion described above. It is preferable that an attachment portion extending from the portion toward the first support portion and fixed to the first support portion is provided.

  According to this configuration, since the placing portion is received and supported by the receiving portion, the rasp tooth portion can be firmly attached to the support portion by a simple attachment operation only by fixing the attachment portion to the first support portion.

It is a left view which shows the whole corn harvester. It is a vertical side view which shows a threshing apparatus. It is a longitudinal front view which shows a threshing apparatus. It is an expanded view of a handling processing unit. It is a side view which shows a guide member. It is a perspective view which shows the guide member of a decomposition | disassembly state. It is a top view which shows a resistance member. It is a longitudinal front view of tooth handling. It is a side view of a tooth handling. It is a vertical side view of a drum part. It is a longitudinal rear view of a drum part. It is a vertical rear view which shows a division | segmentation drum part. It is a vertical rear view which shows the support structure of a drum part. It is a XIV-XIV cross-sectional arrow view of FIG. It is a rear view which shows a supporting member. It is a perspective view which shows the drum part support structure in a decomposition | disassembly state.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The case where the threshing apparatus concerning the Example of this invention is applied to a corn harvester is demonstrated. FIG. 1 is a left side view showing the entire corn harvester. The direction of “F” shown in FIG. 1 is the “front side” of the traveling machine body 50, the direction of “R” is the “rear side” of the traveling machine body 50, the front side of the page is the “left side” of the traveling machine body 50, and the back side of the page is the traveling machine body. It is defined as 50 “right”.

  As shown in FIG. 1, the corn harvester includes a traveling machine body 50 that is equipped with left and right front wheels 51 so that it can be driven, and that has left and right rear wheels 52 that can be steered. A riding-type driving unit 53 is formed at the front of the traveling machine body 50. The driving unit 53 includes a cabin 54 that covers the boarding space. A feeder 56a of the pre-harvest processing device 56 is connected to the front portion of the machine body frame 55 of the traveling machine body 50 so as to be vertically swingable. A lifting cylinder 57 is connected across the front end of the feeder 56a and the body frame 55. By swinging the feeder 56a with the lifting cylinder 57, the pre-harvest processing device 56 can be lifted and lowered between the lowered working position and the raised non-working position. A threshing device 1 and a storage tank 58 are provided in a portion of the traveling machine body 50 after the operation unit 53.

  The corn harvester can perform the harvesting work by lowering the pre-harvest processing device 56 to the lowering work position and running the traveling machine body 50 in this state. During the harvesting operation, a corn tuft is harvested from the corn plant in the harvesting unit 56b of the pre-harvest processing device 56. A corn tuft is a tuft of seed grains that are connected in a rod shape, and the tufted seed grains are wrapped in foliage. A corn tuft as a harvested crop is conveyed by the feeder 56a upward and rearward of the traveling machine body 50, and the corn tuft is supplied to the threshing apparatus 1 over the entire length. In the threshing apparatus 1, a threshing process for threshing the seed grains of the corn tuft and a sorting process for sorting the seed grains from dust are performed. The selected seed grains are supplied to the storage tank 58 by the lifting device 59 and stored. The storage tank 58 is equipped with a screw conveyor type carry-out device 60. The seed grains stored in the storage tank 58 can be taken out by the carry-out device 60.

  The threshing apparatus 1 will be described. The upper side of the threshing target crop (corn tuft) in the processing direction will be described as the front side of the threshing device 1, and the lower side of the crop processing direction will be described as the rear side of the threshing device 1.

  As shown in FIGS. 2 and 3, the threshing apparatus 1 includes a threshing machine 1A, a threshing unit 1B formed on the upper part of the threshing machine 1A, and a sorting unit 1C formed below the threshing unit 1B.

  As shown in FIGS. 2 and 3, the threshing unit 1B includes a handling chamber 3 formed inside the threshing machine 1A. A handling cylinder 4 is provided in the handling chamber 3 so as to be rotatable. The handling chamber 3 includes a front wall 5 and a rear wall 6 of the threshing machine, a receiving net 7 provided below the handling cylinder 4, and a top plate 8 provided above the handling cylinder 4. An entrance 12 through which crops are thrown into the handling chamber 3 is formed at the front end of the handling chamber 3. At the rear end of the handling chamber 3, an outlet 9 is formed through which threshing products such as foliage detached from the corn tuft are discharged from the handling chamber 3. The receiving net 7 is configured in a U shape that opens upward when viewed in the direction along the handle cylinder axis P. The receiving net 7 is located around the lower portion of the handling cylinder 4. The top plate 8 is formed in a circular arc shape that protrudes upward in a direction view along the barrel axis P.

  The handling cylinder 4 includes a rotation support shaft 10 extending in the front-rear direction of the threshing apparatus 1. The handling cylinder 4 is rotatably supported on the front wall 5 and the rear wall 6 via a rotation support shaft 10. A drive mechanism 11 is provided outside the front wall 5. A driving force is transmitted to the drive mechanism 11 from an engine (not shown), and the rotation support shaft 10 is rotationally driven by the drive mechanism 11. As a result, the handling cylinder 4 is rotationally driven in the rotational direction a (see FIG. 3) about the axis of the rotation spindle 10 (the handling axis P). The handling cylinder 4 includes a scraping portion 4 </ b> A provided on the inlet side of the handling cylinder 4 and a handling processing unit 4 </ b> B provided on the outlet side of the handling cylinder 4.

  As shown in FIG. 2, the scraping portion 4 </ b> A includes a tapered base portion 15 and two spiral blades 16. The terminal part of the base part 15 is connected to the starting end part (front end part) of the handling processing part 4B in a relatively non-rotatable manner. The two spiral blades 16 are provided on the outer periphery of the base portion 15 so as to rise toward the radially outer side of the scraping portion 4A. The two spiral blades 16 are arranged at intervals in the circumferential direction of the base portion 15.

  In the scraping portion 4A, the spiral blade 16 is rotationally driven by the base portion 15 being rotationally driven by the handling processing portion 4B. The crops thrown into the front end portion of the handling chamber 3 are scraped back along the conveying bottom plate 17 by the spiral blade 16 and supplied to the handling processing unit 4B.

  The handling processing unit 4B is connected to the end of the scraping unit 4A so as not to be relatively rotatable. The handling processing unit 4B includes a cylindrical drum unit 20, and the handling cylinder 4 is configured in a so-called drum type. A plurality of supports 21 (see FIG. 3) are connected to the inside of the drum portion 20 and the rotation support shaft 10. The plurality of supports 21 are arranged at intervals in the direction along the axis of the rotation spindle 10. The drum unit 20 is supported by the rotary spindle 10 through the support 21 so as not to be relatively rotatable. The drum unit 20 is rotationally driven by the rotation support shaft 10.

  As shown in FIGS. 2 and 3, a plurality of teeth 22 are provided on the outer peripheral portion of the drum portion 20 as the outer peripheral portion of the handling cylinder 4. As shown in FIGS. 2 and 3, the tooth handling 22 rises from the drum portion 20 toward the radially outer side of the handling drum 4. FIG. 4 is a development view of the handling processing unit 4B. As shown in FIGS. 2, 3, and 4, the plurality of teeth 22 are dispersed in the direction along the cylinder axis P and the cylinder circumferential direction. Of the plurality of teeth 22, the teeth 22 arranged in a straight line in the circumferential direction of the barrel are arranged with a gap in the circumferential direction of the barrel.

  As shown in FIG. 3, the tooth handling 22 includes a support portion 23 attached to the drum portion 20 and a tooth portion 24 attached to the support portion 23. As shown in FIG. 4, irregularities are formed on the surface of the tooth portion 24 as the surface of the tooth-handling 22, the surface is formed in a file shape, and the tooth-handling 22 is configured as a so-called ras tooth-handling. The tooth handling 22 feeds the crop while handling the crop.

As shown in FIGS. 2 and 4, a plurality of teeth 22 are arranged in such a manner that a part of teeth 22 are arranged in a straight line in the circumferential direction of the cylinder to form one tooth array. The arrangement is in a state of being aligned in the direction along the trunk axis P. The 10 tooth-treating rows are referred to as the first to tenth tooth-treating rows L1 to L10 in order from the tooth-treating row located closest to the entrance of the handling chamber, and the barrel outer peripheral portion of the tooth-handling 22 in the first tooth-treating row L1. The rising height from t1 is the rising height from the outer periphery of the handle barrel 22 of the tooth handle 22 in the second tooth row L2, and is the rising height of the tooth handle 22 from the outer periphery of the handle 22 in the third tooth row L3. T3, the rising height of the teeth 22 from the outer circumference of the barrel in the fourth tooth row L4 is t4, and the rising height of the teeth 22 from the outer circumference of the barrel in the fifth tooth row L5 is t5. Then
t1 <t2 <t3 <t4 <t5
The handle 22 is attached in such a state. In the state where the rising height from the outer periphery of the handle barrel 22 in the sixth handle row L6 to the tenth handle row L10 is the same as the rising height of the fifth handle row L5. Is attached.

  The rising height of the handle 22 from the outer periphery of the handle barrel 22 in the portion (exit side portion) 4R located on the exit side of the handle chamber 3 with respect to the intermediate portion 4C in the harvest transfer direction in the handle cylinder 4 is It is higher than the rising height of the tooth-handling 22 at a site (entrance side site) 4F located on the entrance side of the handling chamber 3 with respect to the intermediate site 4C.

  In the entrance side part 4F of the handle cylinder 4, the rising height of the handle 22 from the outer periphery of the handle cylinder increases stepwise toward the exit side part 4R.

  In the part from the intermediate part 4C of the handling cylinder 4 to the end part on the outlet side, the rising height of the tooth handling 22 from the outer circumference of the handling cylinder is the same.

  As shown in FIG. 3, the arrangement of the plurality of tooth handling teeth 22 is such that the gap between the tooth handling teeth 22 in the first tooth handling row L1 and the second tooth handling row L2 is from the third tooth handling row L3 to the tenth tooth treatment row. The arrangement is narrower than the gap between the teeth 22 in L10.

  The distribution density in the treatment barrel circumferential direction of the tooth treatment 22 in the first tooth treatment row L1 and the second tooth treatment row L2 in the entrance side portion 4F of the treatment barrel 4 is the circumference of the treatment barrel 22 of the tooth treatment 22 in the intermediate portion 4C. It is higher than the distribution density in the direction. The distribution density in the treatment barrel circumferential direction of the tooth treatment 22 in the first tooth treatment row L1 and the second tooth treatment row L2 in the entrance side portion 4F is the same as that in the treatment barrel circumferential direction of the tooth treatment 22 in the exit side portion 4R. It is higher than the distribution density.

  The distance between the tooth handling 22 and the top plate 8 at the outlet side portion 4R of the treatment barrel 4 is narrower than the distance between the tooth treatment 2 and the top plate 8 at the entrance side portion 4F of the treatment barrel 4.

  As shown in FIG. 5, a guide member 26 is provided between the terminal portion of the base portion 15 and the outer peripheral portion of the tooth handling 22 located at the processing material transfer start end portion of the handling processing portion 4 </ b> B among the tooth handling 22. I have it. The harvest located at the end of the scraping portion 4A is guided from the spiral blade 16 to the outer peripheral portion of the tooth handle 22 by the guide member 26.

  As shown in FIG. 6, the guide member 26 is constituted by three divided guide members 26a obtained by dividing the guide member 26 in the circumferential direction of the handling cylinder. A leg portion 26b is provided on the back side of the division guide member 26a. Support portions 26c are provided at both ends of the leg portion 26b. The split guide member 26a is supported by the drum portion 20 by the support portion 26c being fastened and connected to the drum portion 20 by a connecting bolt 26d.

  As shown in FIGS. 2 and 3, a plurality of resistance members 63 arranged at intervals in the direction of the barrel axis P are attached to the inner surface side of the top plate 8. The resistance member 63 is configured by a vertical plate member that hangs down from the top plate 8 toward the handling cylinder 4. As shown in FIG. 7, in plan view, the resistance member 63 has a portion 63 a (upper side portion) positioned on the upper side in the crop rotation direction between the top plate 8 and the handling cylinder 4. Inclined with respect to the handling cylinder axis P in an inclined state located on the entrance side of the handling chamber 3 with respect to the lower part side 63b (lower side part) in the crop rotation direction between the handling cylinder 4 and the handling cylinder 4 ing. In the present embodiment, the crossing angle Θ of the resistance member 63 with respect to the cylinder axis P is about 85 degrees. The crossing angle Θ is the crossing angle in the range of 75 to 90 degrees corresponding to the type and nature of the crop when the nature such as hardness is different even when the kind is the same, even if it is the same kind of crop. To. 64 shown in FIGS. 2 and 7 is a dust delivery valve. The dust delivery valve 64 is attached to the top plate 8 above the scraping portion 4A. The crop scraped and transferred by the spiral blade 16 is guided by the dust feed valve 64 toward the handling processing unit 4B.

  The crop is powered by the handling cylinder 4 and rotates between the top plate 8 and the handling cylinder 4 in the circumferential direction of the handling cylinder. Further, the crop is subjected to a transfer action by the tooth handling 22 (lasp tooth handling) and has a moving force toward the outlet side of the handling chamber 3. When the crop is positioned between the top plate 8 and the handling cylinder 4, the crop abuts against the resistance member 63, and the resistance member 63 provides resistance to the movement of the crop in the lower side (the handling chamber outlet side). .

  In the threshing apparatus 1, when a crop is put into the front part of the handling chamber 3, the crop is scraped back (exit side) by the spiral blade 16 in the scraping unit 4 </ b> A and supplied to the handling processing unit 4 </ b> B. At this time, the crop is guided by the guide member 26 from the spiral blade 16 to the outer peripheral portion of the tooth handling 22, so that the crop is not easily caught by the tooth handling 22. In the handling processing unit 4B, the crop is handled by the tooth handling 22 (lasp tooth handling) and the receiving net 7, and the seed grains of the corn tuft are shattered. The shed seed grains fall from the handling chamber 3 to the sorting unit 1C through the leak holes of the receiving net 7. The corn tufts located at the entrance-side portion of the handling chamber 3 are still thick because the seed grain has not progressed so much, but the handling of the tooth-handling 22 at the entrance-side portion 4F of the handling barrel 4 is still large. Since the distribution density in the waist circumference direction is higher than the distribution density of the exit side portion, the corn tufts having a large diameter are handled with a high frequency of receiving the handling action by the tooth handling 22. The teeth 22 (lasp teeth) and the receiving net 7 located on the outer periphery of the handling cylinder 4 transfer the crop to the outlet side of the handling chamber 3, and at a plurality of locations in the crop transfer direction (processing direction). Since resistance between the top plate 8 and the handling cylinder 4 is imparted to the movement of the crop by the resistance member 63 that intersects the handling cylinder axis P in a plan view, The material is transferred to the outlet side of the handling chamber 3 at an appropriate feed speed at which handling processing leakage hardly occurs. The corn tufts located at the exit side part of the handling chamber 3 are in a state where the diameter is reduced because seed grain threshing has progressed. However, in the exit side part 4R of the handling cylinder 4, the rising height of the tooth handling 22 from the outer peripheral part of the handling cylinder 22 is higher than the rising height of the entrance side part. Since the interval between the tooth handling 22 and the receiving net 7 is narrower than the interval between the entrance side parts, the tooth handling 22 is likely to act on the corn tuft, even if the diameter of the corn tuft is small ( Easy). Dust such as a part of the corn tufts from which the seed grains are removed and a foliage from the corn tufts are discharged from the outlet 9 to the outside of the handling chamber 3.

  As shown in FIG. 2, in the sorting unit 1 </ b> C, the threshing product such as seed grains dropped from the receiving net 7 is received by the swing sorting device 70 and sieved, and the sorting wind supplied by the Kara 71 is used. The wind is sorted and the seed grains are sorted out as dust. Of the seed grains, the seed grains for harvesting are conveyed to the lifting device 59 by the first screw conveyor 72. Of the seed grains, the seed grains for reprocessing are conveyed to a reprocessing section (not shown) by the second screw conveyor 73.

The tooth handling 22 will be further described.
As shown in FIG. 8, the support portion 23 of the tooth handling 22 includes a first support portion 23a, a second support portion 23b, and a receiving portion 23c. Lower end portions of the first support portion 23 a and the second support portion 23 b are detachably attached to the outer peripheral surface of the drum portion 20 as the outer peripheral portion of the handling cylinder 4. A lower end portion of the first support portion 23 a is attached to the drum portion 20 by a connecting screw 32. The lower end portion of the second support portion 23 b is attached to the drum portion 20 with a connecting bolt 33. The first support part 23 a and the second support part 23 b rise from the outer peripheral surface of the drum part 20. The 1st support part 23a and the 2nd support part 23b are located in a line at intervals. In the present embodiment, the first support portion 23 a and the second support portion 23 b are arranged in the circumferential direction of the drum portion 20. The receiving portion 23c is connected to the upper end portion of the first support portion 23a and the upper end portion of the second support portion 23b.

  The support portion 23 is attached to the outer peripheral surface of the drum portion 20 at the lower ends of the first support portion 23 a and the second support portion 23 b, and rises from the outer peripheral surface of the drum portion 20 toward the radially outer side of the handling cylinder 4. .

  As shown in FIGS. 8 and 9, two mounting holes 27 are formed in the first support portion 23a. The two mounting holes 27 are arranged in a direction along the barrel axis P. A notch 29 is provided at one end of the second support 23b facing one mounting hole 27 and at the other end of the second support 23b facing the other mounting hole 27. It is formed.

  A mounting seat 28 is provided below the tooth portion 24. As shown in FIG. 8, the mounting seat portion 28 includes a placement portion 28a and a mounting portion 28b. The placement portion 28a is placed on the receiving portion 23c and is received and supported from below by the receiving portion 23c. The attachment portion 28b extends from one end portion of the placement portion 28a toward the outer surface side of the first support portion 23a. The attachment portion 28b is fastened and fixed to the first support portion 23a by a connecting screw 30 attached over the attachment portion 28b and the attachment hole 27.

  The mounting seat 28 is placed on the receiving portion 23c and received and supported by the receiving portion 23c from below, and the mounting portion 28b is attached to the first supporting portion 23a. Installed. Since the mounting seat portion 28 is attached to the support portion 23, the tooth portion 24 is attached to the support portion 23.

  When the connecting screw 30 is tightened, the tip end side of the tool is inserted into the inside of the support portion 23 through the notch portion 29 from the outer surface side of the second support portion 23b, whereby the screw member 31 attached to the connection screw 30 is attached. A tool can be mounted and the connecting screw 30 can be tightened.

The drum unit 20 of the handling processing unit 4B will be described.
As shown in FIGS. 3 and 4, the drum unit 20 includes three divided drum units 20 a. The three divided drum parts 20a are obtained by dividing the drum part 20 at three divided parts X in the circumferential direction of the cylinder. As shown in FIG. 10, the divided drum portion 20 a is supported on the rotary support shaft 10 via five support bodies 21 arranged at intervals in the direction along the barrel axis P.

  As shown in FIG. 4, a gap filling member 36 is provided between the adjacent support bodies 21 on the back side of the adjacent divided drum portions 20a. As shown in FIGS. 11 and 12, the gap filling member 36 is extended from the back surface side of one divided drum portion 20a of the adjacent divided drum portions 20a toward the back surface side of the other divided drum portion 20a. Yes. A gap between adjacent divided drum portions 20a is blocked from the inside of the handling drum 4 by the gap filling member 36, so that seed grains and the like can be prevented from entering the inside of the handling drum 4 through a gap between the divided drum portions 20a. .

  As shown in FIGS. 13, 15, and 16, each support body 21 includes a support member 38 on the support shaft side and a support member 39 on the drum side. As shown in FIGS. 13, 14, and 15, the support member 38 on the support shaft side has a circular small-diameter member 38 a when viewed along the handle shaft axis P and a circular shape when viewed along the handle shaft axis P. The large-diameter member 38b. An attachment hole 40 is formed at the center of the small diameter member 38a and the large diameter member 38b. The small-diameter member 38 a is fitted to the outer peripheral portion of the rotation support shaft 10 through the attachment hole 40 so as not to be relatively rotatable. The small diameter member 38a and the large diameter member 38b are connected by a connecting bolt 41. The support member 38 on the support shaft side is supported by the rotation support shaft 10 through the attachment hole 40 so as not to be relatively rotatable.

  The drum-side support member 39 is constituted by three divided support members 42 as shown in FIGS. The three divided support members 42 are obtained by dividing the support member 39 at three divided portions Y in the circumferential direction of the handling cylinder. As shown in FIGS. 13, 14, and 15, each of the three divided support members 42 includes a receiving portion 42 a and two connecting portions 42 b.

  As shown in FIG. 4, the three divided portions Y of the drum-side support member 39 and the three divided portions X of the drum portion 20 are misaligned. As shown in FIGS. 13 and 14, the receiving portion 42a is located across the back side of one divided drum portion 20a of the adjacent divided drum portion 20a and the back side of the other divided drum portion 20a. The receiving portion 42 a is mounted on the back side of the adjacent divided drum portion 20 a and supports the adjacent divided drum portion 20 a from the inside of the handling cylinder 4. Between the adjacent gap filling members 36, the receiving part 42 a closes the gap between the adjacent divided drum parts 20 a from the inside of the handling cylinder 4. The receiving part 42 a and the divided drum part 20 a are connected by a connecting bolt 43.

  The two connecting portions 42b are dispersed at both ends of the receiving portion 42a in the drum portion circumferential direction. The connecting portion 42 b extends from the receiving portion 42 a toward the inside in the radial direction of the drum portion 20. The connecting portion 42b is connected to the large diameter member 38b by a connecting bolt 43. The support member 39 on the drum side is supported by the support member 38 on the support shaft side by the connecting portion 42b, and supports the drum portion 20 from the inside of the handling cylinder 4 by the receiving portion 42a.

[Another Example]
(1) In the above-described embodiment, the example in which the crossing angle Θ of the resistance member 63 with respect to the handling cylinder axis P in the plan view is about 85 degrees is shown. Θ may be adopted.

(2) In the above-described embodiment, an example in which corn is targeted for harvesting has been shown. However, wheat and soybeans may be harvested for implementation. When wheat, soybeans, and the like are to be harvested, it is referred to as a crop to be introduced into the handling room 3 from the stock source to the tip of the harvested cereal meal.

(3) In the above-described embodiment, an example in which the handling cylinder 4 is configured as a drum type has been described. However, rod-like support members extending in the front-rear direction of the handling cylinder are arranged at intervals in the circumferential direction of the handling cylinder 4. It is also possible to employ a configuration in which the rasp handle 22 is supported by the support member. Further, when the drum 4 is configured as the drum 4, instead of a single rotation spindle 10, a front rotation spindle that protrudes forward from the front end of the barrel 4 and a rear end from the rear end of the barrel 4. It is also possible to carry out with a rear rotating support shaft protruding in the direction.

(4) In the above-described embodiment, the example in which the drum unit 20 is configured by the divided drum unit 20a has been described. However, the drum unit 20 may be configured by a single plate member that is wound. Moreover, when comprised by the division | segmentation drum part 20a, you may comprise not only three but two or four or more division | segmentation drum parts.

(5) In the above-described embodiment, the example in which the support member 39 is configured by the divided support member 42 has been described. However, the support member 39 may be configured by one non-split type support member. Moreover, when comprised by the division | segmentation support member 42, you may comprise not only three but two or four or more division | segmentation support members.

(6) In the above-described embodiment, the example in which the divided portion X of the drum portion 20 and the divided portion Y of the support member 39 are displaced is shown. Also good.

(7) In the above-described embodiment, an example in which the rising height of the rasp handle 22 increases stepwise toward the exit side portion is shown, but a configuration in which it is continuously increased in any form is adopted. Good.

(8) In the above-described embodiment, an example in which the rising height of the ras handle teeth 22 is the same in the portion from the intermediate portion 4C of the handling cylinder 4 to the end portion on the outlet side is shown. Also in the part which reaches the end part on the side, a configuration in which the rising height of the ras handle teeth 22 becomes higher toward the end part on the outlet side may be adopted.

(9) In the above-described embodiment, an example in which the distribution density in the circumferential direction of the handle barrel 22 in the intermediate portion 4C of the handle barrel 4 is lower than the distribution density in the inlet-side portion is shown. The distribution density in the region from the end on the inlet side of the body 4 to the intermediate region 4C may be made higher than the distribution density in the region on the outlet side.

(10) In the above-described embodiment, an example in which the scraping portion 4A is provided is shown, but the embodiment may be performed without the scraping portion 4A.

(11) In the above-described embodiment, an example in which the support portion 23 has a structure including the first support portion 23a and the second support portion 23b has been described, but either one of the first support portion 23a and the second support portion 23b is shown. It may be a one-leg structure provided with only a single foot. Moreover, you may make it the structure where the whole support part 23 becomes one block shape.

(12) In the above-described embodiment, an example in which the second support portion 23b is provided with the notch 29 facing the attachment hole 27 is shown. However, the attachment hole 27 is a hole with a screw and the notch 29 is provided. You may implement without.

(13) In the above-described embodiment, the example in which the two attachment holes 27 are formed is shown, but one or three or more may be formed.

  INDUSTRIAL APPLICABILITY The present invention can be used for a threshing apparatus that targets threshing crops other than corn such as wheat and soybeans.

DESCRIPTION OF SYMBOLS 3 Handling chamber 4 Handling cylinder 4A Scratching part 4B Handling processing part 8 Top plate 10 Rotating spindle 15 Base part 16 Spiral blade 20 Drum part 20a Dividing drum part 22 Teeth handling (rasp handling tooth)
23 support part 23a first support part 23b second support part 23c receiving part 24 tooth part 26 guide member 27 attachment hole 28 attachment seat part 28a mounting part 28b attachment part 29 notch part 36 gap filling member 39 support member 42 division Support member 63 Resistance member P Handle cylinder axis X Divided part Y Divided part

Claims (18)

A threshing device for threshing a crop put into a handling room,
A handling cylinder that is provided in the handling chamber so as to be capable of driving rotation, and that threshing while transferring the input crop from the entrance side to the exit side of the handling chamber in a direction along the handling cylinder axis;
A top plate provided above the handling cylinder and forming the handling chamber;
On the outer periphery of the handling drum, a plurality of ras handle teeth are provided that have irregularities on the surface and are transferred to the crop while acting on the crop.
A resistance member that is attached to the top plate and that provides resistance to movement toward the lower side in the transfer direction of the crop located between the top plate and the handling cylinder,
The threshing apparatus, wherein the resistance member intersects the barrel axis in a plan view and is arranged at intervals along the direction of the barrel axis.   The resistance member intersects with an angle of intersection of 75 degrees to 90 degrees with respect to the barrel axis in an inclined state where an upper side portion is positioned closer to the entrance side than a lower side portion in plan view. The threshing apparatus according to 1.   The distance between the rasp handle teeth and the top plate at the outlet side portion of the handle cylinder is narrower than the distance between the rasp handle teeth and the top plate at the inlet side portion of the handle cylinder. The threshing device described.   The rising height from the outer peripheral portion of the rasp tooth at the outlet side portion of the treatment barrel is higher than the rising height from the outer peripheral portion of the rasp tooth at the inlet side portion of the treatment barrel. Thru | or threshing apparatus as described in any one of Claim 3.   The threshing device according to claim 4, wherein a rising height of the ras handle teeth from the outer peripheral portion is increased stepwise toward a portion of the handle barrel on the outlet side.   The threshing device according to claim 4 or 5, wherein a rising height from the outer peripheral portion of the ras handle teeth is the same in a portion from the intermediate portion in the crop movement direction to the end portion on the outlet side in the handle barrel. .   The distribution density in the treatment barrel circumferential direction of the ras handle teeth at the entrance side portion of the treatment barrel is higher than the distribution density of the ras treatment teeth in the treatment barrel circumferential direction at the exit side portion of the treatment barrel. Threshing apparatus as described in any one of 1 to 6.   The distribution density in the circumferential direction of the treatment barrel of the ras teeth at the entrance side part of the treatment cylinder is greater than the distribution density of the ras teeth in the treatment cylinder circumferential direction at the intermediate part in the crop transfer direction of the treatment cylinder. The threshing device according to claim 7 which is high. The handling cylinder is configured as a drum type,
The threshing device according to any one of claims 1 to 8, wherein the ras handle teeth are provided in a state of being arranged with a gap in a circumferential direction of the handle drum at the outer peripheral portion. The handling cylinder includes a rotation support shaft and a cylindrical drum portion supported on the rotation support shaft so as not to rotate relative to the rotation support shaft.
The drum portion is constituted by a plurality of divided drum portions obtained by dividing the drum portion in the handling cylinder circumferential direction.
The threshing apparatus according to claim 9, further comprising a support member on which the back side of the divided drum portion is placed and supported in a state of being arranged on the rotating spindle in a direction along the barrel axis. .   The threshing apparatus according to claim 10, wherein the support member includes a plurality of divided support members divided in a circumferential direction of the handling cylinder.   The threshing device according to claim 11, wherein the divided part of the drum portion and the divided part of the support member are displaced in the circumferential direction of the barrel.   The threshing device according to any one of claims 10 to 12, further comprising a gap filling member that closes a gap between the divided drum portions adjacent to each other in a circumferential direction of the barrel from the inner side of the barrel. The handling cylinder is provided with a scraping portion provided on the inlet side, and a handling processing unit connected to a terminal portion of the scraping portion and having the ras handling teeth,
The scraping part is provided with a tapered base part, provided on the outer peripheral part of the base part, and a spiral blade that scrapes the crop into the handling processing part,
Between the end portion of the outer peripheral portion of the base portion and the outer peripheral portion of the ras handle teeth located at the crop transfer start end portion of the handle processing portion of the ras handle teeth, the crop is removed from the spiral blade to the ras The threshing apparatus as described in any one of Claim 1 to 13 provided with the guide member guided to a tooth-handling.   The threshing apparatus according to any one of claims 1 to 14, wherein the rasp handle has a support part attached to the outer peripheral part and a rasp tooth part attached to the support part.   The support portion includes a first support portion rising from the outer peripheral portion, a second support portion rising from the outer peripheral portion in a state of being spaced apart from the first support portion, and an upper end of the first support portion The threshing apparatus according to claim 15, further comprising: a receiving portion coupled to the upper portion and the upper end portion of the second support portion and receiving the rasp tooth portion. A mounting hole for fixing the rasp tooth portion is formed in the first support portion,
The threshing device according to claim 16, wherein a notch portion is formed at a location facing the attachment hole in the second support portion. The rasp tooth portion is provided with a mounting seat portion connected to the support portion,
A mounting portion that is mounted on the receiving portion on the mounting seat, and an attachment that extends from one end of the mounting portion toward the first support portion and is fixed to the first support portion The threshing apparatus of Claim 16 or 17 with which the part is provided.

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