JP2020150823A - combine - Google Patents

Abstract

To provide a combine that includes a bucket capable of greatly improving transport capacity.SOLUTION: A combine includes a bucket type conveyor 30 for transporting the threshed grain threshed by a threshing unit to a storage unit. The bucket type conveyor 30 is constituted by having an endless rotational band 37 wound around a vertically-arranged rotating body and driven, and multiple buckets 50 mounted to the endless rotational band 37. The bucket 50 is opened to the moving front side. The bucket 50 includes a first plate part 51 and a second plate part 52 tilted so as to guide the threshed grain into the inside of the bucket 50. The second plate part 52 is provided in the moving front side more than the first plate part 51 at predetermined intervals H1.SELECTED DRAWING: Figure 8

Description

The present invention relates to a combine equipped with a bucket-type conveyor that transports a threshed product that has been threshed in the threshing section to a storage section.

In the bucket type conveyor of the combine, for example, as shown in Patent Document 1, an endless rotating band driven by being wound around rotating bodies arranged vertically and a plurality of buckets attached to the endless rotating band are provided. Be prepared. The buckets are a bottomless bucket located on the front side of the movement (upper side in the delivery route of the threshed product) and a bottomed bucket arranged on the rear side of the movement (lower side in the delivery route of the threshed product). It is configured in combination with a shaped bucket. The peripheral wall portion of each bucket includes a base end wall portion attached to the endless rotating band, a tip wall portion facing the base end wall portion at a position separated from the endless rotating band, and a pair of side wall portions facing each other. .. The bucket opening ends of the pair of side wall portions extend to the front side of the movement with respect to the bucket opening ends of the tip wall portion.
In the bucket type conveyor shown in Patent Document 1, the threshed product in the bottomless bucket on the moving front side is sent to the next bottomless bucket through the opening at the bottom of the bucket, and further sent to the bottomed bucket. Be done. As a result, the bottomless bucket and the bottomed bucket other than the frontmost bottomless bucket are filled with the threshed product.

Japanese Unexamined Patent Publication No. 55-21345

In the conventional bucket type conveyor, the bucket opening ends of the pair of side wall portions of the bucket are extended to the front side of the movement from the bucket opening ends of the tip wall portion, so that the threshed products stored in the bucket are paired. It is possible to prevent the spill from the side wall portion to the side. However, since the bucket opening end of the tip wall portion is located at a lower position on the bottom wall side than the bucket opening end of the pair of side wall portions, the maximum angle of repose based on the bucket opening end of the tip wall portion is used to maximize the bucket. The storage capacity is limited and the upper space inside the bucket is wasted. Moreover, the threshed product in the bucket, which is stored with an angle of repose, easily spills from the bucket opening end of the tip wall portion due to vibration during transportation, and it is desired to improve the transport capacity of the bucket.

In view of this situation, the point is to provide a combine equipped with a bucket that greatly improves the carrying capacity.

The first characteristic configuration of the present invention includes a bucket-type conveyor that conveys the threshed product that has been threshed in the threshing section to the storage section.
The bucket type conveyor includes an endless rotating band driven by being wound around rotating bodies arranged vertically, and a plurality of buckets attached to the endless rotating band.
The bucket opens to the front side of movement and
The bucket includes a first plate portion and a second plate portion that are inclined so as to guide the threshed product into the inside of the bucket.
The second plate portion is provided at a predetermined distance on the moving front side of the first plate portion.

According to the above configuration, the threshed product stored in the bucket is provided on the tip side away from the endless rotating zone at a predetermined distance from the first plate portion and the moving front side thereof. It is received by the second plate part. Therefore, the maximum storage capacity of the threshed product in the bucket is the angle of repose based on the moving front side edge of the first plate (the upper edge in the delivery route of the threshed product) and the angle of repose of the second plate. Determined by the angle of repose relative to the anterior edge of movement. As a result, the threshed product received by the second plate portion is stored by utilizing the space on the moving front side in the storage space of the bucket (the upper space in the delivery route of the threshed product). Moreover, since the upper layer side of the threshed product in the bucket stored with an angle of repose is received by the second plate portion arranged at a predetermined interval from the first plate portion, the second plate portion due to vibration or the like is received. The threshed product spilling from the front edge of the plate portion of 1 can also be reduced. As a result, the transport capacity of the bucket can be greatly improved.

In the second characteristic configuration of the present invention, the bucket includes a bottom wall portion and a peripheral wall portion continuous thereto, and the peripheral wall portion is separated from the base end wall portion attached to the endless rotating band and the endless rotating band. A tip wall portion facing the base end wall portion and a pair of side wall portions facing each other are provided at the above-mentioned positions, and the first plate portion is composed of the tip wall portion and the second plate portion. Is a point provided over the pair of side wall portions.

According to the above configuration, since the first plate portion is formed by the tip wall portion of the peripheral wall portion of the bucket, a bucket having a large transport capacity can be simply provided by providing the second plate portion over both side wall portions of the bucket. Can be easily manufactured.

The third characteristic configuration of the present invention is that the tip wall portion of the bucket is configured in an inclined posture in which the bucket opening end is separated from the endless rotation zone, and the second plate portion is the tip wall portion of the bucket. It is at a point provided parallel to or substantially parallel to.

According to the above configuration, when the bucket reverses and rotates downward along the upper rotating body around which the endless rotating band is wound, the threshed product in the bucket is stored by the centrifugal force generated in the bucket. It is thrown toward the side. At this time, since the tip wall portion of the bucket and the second plate portion are in a parallel or substantially parallel inclined posture, the threshed product in the bucket can be smoothly discharged.

In the fourth characteristic configuration of the present invention, the bucket opening ends of the pair of side wall portions of the bucket are extended to the front side of the movement of the bucket opening ends of the tip wall portion, and are extended to the extension wall portions of the pair of side wall portions. , The point where the second plate portion is provided.

According to the above configuration, by extending the bucket opening ends of the pair of side wall portions of the bucket to the moving front side, it is possible to prevent the threshed product stored in the bucket from spilling laterally from the pair of side wall portions. be able to. Moreover, by utilizing the extension wall portions of the pair of side wall portions, the second plate portion can be easily attached at a position separated by a predetermined distance from the tip wall portion of the bucket to the moving front side.

The fifth characteristic configuration of the present invention is that the distance between the second plate portion of the bucket and the tip wall portion of another bucket adjacent to the moving front side thereof is the second plate portion of the bucket. The point is that the portion is configured to be smaller than a predetermined distance between the portion and the tip wall portion.

According to the above configuration, the distance between the tip wall portion and the second plate portion in the bucket is set to a predetermined interval that allows the threshed product in the bucket to be smoothly discharged. On the other hand, the mounting pitch of the bucket is reduced by setting the distance between the second plate of the bucket and the tip wall of another bucket adjacent to the moving front side of the bucket to be smaller than a predetermined distance. Can be done. As a result, the transport capacity of the threshed product can be increased by increasing the number of buckets attached to the endless rotating zone.

The sixth characteristic configuration of the present invention includes a transport unit provided below the threshing unit to transport the threshed product to the bucket type conveyor.
The transport unit includes a bottom screw extending in the left-right direction of the machine body, and a blade member provided at the transport end portion of the bottom screw and throwing a threshed product toward the bucket.
When the threshed product thrown out from the blade member reaches the threshed product receiving area of the bucket movement path, the blade member is driven and the bucket type conveyor is driven so that the bucket is located in the threshed product receiving area. The point is that there is a linking unit that links the drive of the.

According to the above configuration, the threshed product that has been threshed at the threshing section is conveyed to the bucket type conveyor side along the left-right direction of the machine by a bottom screw provided at the lower part of the threshing section. The transported threshed product is thrown into the threshed product receiving area of the bucket movement path by a blade member provided at the transport end of the bottom screw. The thrown threshed product is received by the bucket and transported upward. At this time, when the threshed product thrown out from the blade member reaches the threshed product receiving area of the bucket movement path by the linking portion that links the drive of the blade member and the drive of the bucket type conveyor, the bucket is the threshed product. Since it is located in the receiving area, the threshed product transported by the bottom screw can be efficiently inherited and transported to the bucket.

The seventh characteristic configuration of the present invention is that the linking section is provided with a linking adjusting section for adjusting the linking state between the drive of the blade member and the drive of the bucket type conveyor.

According to the above configuration, even if the threshing processed product receiving area fluctuates depending on the type of the threshed processed product, it is thrown out from the blade member by adjusting the linked state between the driving of the blade member and the driving of the bucket type conveyor by the linkage adjusting unit. When the threshed product reaches the fluctuated threshing product receiving area, the bucket can be located in the fluctuated threshing product receiving area.

Left side view of a normal combine Bottom screw and bucket type conveyor perspective view Left side view of the cross section of the bucket type conveyor Perspective view of the linking part that links the drive of the bottom screw and the blade member and the drive of the bucket type conveyor. Enlarged sectional view of the linkage adjustment unit VI-VI line sectional view of FIG. Enlarged sectional view of the lower part of the bucket conveyor Enlarged sectional view of the middle part of the bucket type conveyor Enlarged sectional view of the upper part of the bucket conveyor Bucket perspective Schematic diagram of the storage state of the threshed product by the bucket

Hereinafter, as an example of a mode for carrying out the present invention, an embodiment in which the present invention is applied to a conventional combine harvester will be described with reference to the drawings.
The ordinary combine harvester illustrated in the present embodiment is highly versatile for harvesting cereals such as rice, wheat, buckwheat, soybean, and corn.
As shown in FIG. 1, the ordinary type combine includes a passenger-type traveling machine 1, a cutting section 2 that cuts uncut grain stalks in front of the machine, and grains that receive the cut grain stalks from the cutting section 2 and transport them upward. Threshing section (hereinafter referred to as threshing sorting section 4) in which the threshing process is performed on the grain slag transported from the slag transport section 3 and the grain slag transport section 3 and the sorting target obtained by the threshing process is subjected to the threshing process. , The threshed product obtained by the threshing / sorting treatment in the threshing / sorting unit 4 and the threshing / sorting unit 4 which shreds the threshing process and discharges the straw to the outside of the machine. A storage unit for storing grains (hereinafter referred to as a grain storage unit 6), a screw transport type grain discharge device 7 for discharging grains stored in the grain storage unit 6 to the outside of the machine, and the like. It has.

The traveling machine body 1 includes left and right crawlers 9 attached to the lower part of the machine body frame 8, a driving part (not shown) mounted at a rear portion of the grain storage part 6 in the machine body frame 8, and grains in the machine body frame 8. It has a cabin-specification operation unit 11 mounted in front of the storage unit 6, and the like. The prime mover is equipped with a diesel engine and a radiator. Although not shown, the driver unit 11 is provided with various operating tools such as a steering wheel and a speed change lever, a driver's seat, and the like.

As shown in FIG. 1, the cutting section 2 guides the uncut grain culm to be harvested within the working width of the cutting section 2 to the left and right dividers 12, and rearward the tip side of the uncut grain culm located within the working width. A scraping reel 13 that scrapes into, a cutting device 14 that cuts uncut grain culms located within the working width, a platform 15 that receives the cut grain culms, and a culm on the platform 15 at a predetermined position on the left and right center sides. It has an auger 16 that transports and sends it backward. An opening (not shown) is formed at a predetermined position on the left and right center side of the platform 15 to deliver the cut culm to the culm transport unit 3.

The grain culm transport section 3 has a feeder house 17 extending from the rear end of the cutting section 2 to the front upper part of the threshing sorting section 4, a slat conveyor covered with the feeder house 17 (not shown), and the like. Then, the slat conveyor scoops up and conveys the grain culms sent out by the auger 16 along the bottom plate of the feeder house 17 and then puts them into the handling room (not shown) of the threshing sorting unit 4. It is configured. The transport end portion of the grain culm transport section 3 is connected to the threshing sorting section 4 via a drive shaft 18 that drives a slat conveyor. As a result, the grain culm transport unit 3 is allowed to move up and down with the drive shaft 18 as a fulcrum together with the cutting unit 2.

As shown in FIG. 1, the threshing sorting unit 4 has a handling cylinder 20 that transfers the culms backward while performing a threshing treatment on the culms put into the handling room, grains and straw scraps obtained by the threshing treatment, and the like. A receiving net 21 that leaks a mixture of sorting objects, a swing sorting device 22 that performs a sieving sorting process on the leaked sorting target, and a main wind sorting straw waste by supplying sorting wind to the sorting target. A sorting fan 23, two sub-sorting fans (not shown), and a transporting section (hereinafter, screw transporting type first conveyor 24) that transports the sorted single-grained grains to the right end of the threshing sorting section 4 as the first one. ), Bucket-type conveyor 30 as a grain transporting device that transports grains transported to the right end of the screw transport type first conveyor 24 upward and supplies them to the grain storage unit 6, and selected branch stalks. A screw transport type second conveyor (not shown) that transports adhered grains, bifurcated grains, etc. as a second product to the left end of the threshing sorting unit 4, and a second product transported to the left end is transported forward and upward. It has a screw-conveying type second reduction conveyor 19 and the like that reduce the threshing sorting unit 4 to the handling chamber. As a result, the single-grained grains can be stored in the grain storage section 6 as the first product. In addition, threshing / sorting treatment can be applied to secondary products such as branch stem-attached grains and bifurcated grains after sorting.

As shown in FIGS. 2 and 4, the screw transport type first conveyor 24 includes a gutter-shaped first gutter 25 (see FIG. 1) extending in the left-right direction at the lower part of the threshing sorting unit 4 and the inside of the first gutter 25. It is provided with a bottom screw 26 arranged with the axis oriented in the left-right direction, and a blade member 27 provided at the transport end of the bottom screw 26 and throwing grains toward the bucket 50 of the bucket type conveyor 30. .. As shown in FIG. 1, the first gutter 25 accommodates single-grained grains as the first thing that has fallen from the rocking sorting device 22. The bottom screw 26 conveys the grains in the first gutter 25 to the bucket type conveyor 30 along the left-right direction.
As shown in FIGS. 4 and 7, the blade members 27 are provided at the transfer end portion of the screw shaft 26A of the bottom screw 26 and at two locations that are 180 degrees out of phase in the circumferential direction. Specifically, brackets 28 along the tangential direction are provided at each of the two locations in the circumferential direction of the transport end of the screw shaft 26A, and the blade members 27 are fixedly connected to each bracket 28 by bolts 29A and nuts 29B. There is.
As shown in FIGS. 4 and 5, when the grains thrown out from the blade member 27 reach the grain receiving area (threshing processed product receiving area) 31C of the bucket movement path 31, one bucket 50 receives the grains. A linking portion 60 for linking the drive of the blade member 27 and the drive of the bucket type conveyor 30 is provided so as to be located in the region 31C. The linking section 60 is provided with a linking adjusting section 70 that adjusts the linking state between the drive of the blade member 27 and the drive of the bucket type conveyor 30.

Next, the bucket type conveyor 30 will be described in detail.
As shown in FIGS. 2 and 3, the bucket type conveyor 30 is arranged between the threshing sorting unit 4 and the grain storage unit 6 and has a tubular shape that extends directly upward in the vertical direction. 32 and an input flow path forming body 34 that forms a grain input flow path 33 from the upper end portion of the threshing cylinder 32 toward the grain storage unit 6. The lower end of the frying cylinder 32 is communicated with the transport end of the first gutter 25.
Further, as shown in FIG. 3, a main part of the bucket type conveyor 30 is arranged in a bucket installation area extending inside the fried grain cylinder 32 and a part of the inside of the input flow path forming body 34. The input flow path forming body 34 is mounted in a straddle shape between the upper end portion of the fried grain cylinder 32 and the ceiling portion of one side portion (left portion in the present embodiment) of the grain storage portion 6. The inside of the frying cylinder 32 and the inside of the grain storage portion 6 are formed in communication with each other via the inverted U-shaped grain input flow path 33 formed in the input flow path forming body 34.

As shown in FIG. 3, the main part of the bucket type conveyor 30 includes an upper sprocket 35 (an example of an upper rotating body) arranged on one side (rear part in this embodiment) in the input flow path forming body 34. A lower sprocket 36 (an example of a lower rotating body) arranged at the lower end of the frying cylinder 32, a conveyor chain 37 (an example of an endless rotating band) driven by being wound around both sprockets 35 and 36, and a conveyor. It has a plurality of buckets 50 that are attached to the chain 37 and open on the front side of the movement.
As shown in FIGS. 2, 3 and 9, the upper sprocket 35 is attached to an upper sprocket support shaft 38 erected along the left-right direction on the input flow path forming body 34. As shown in FIGS. 3, 6, and 7, the lower sprocket 36 is attached to a lower sprocket support shaft 39 erected in the lower part of the frying cylinder 32 along the left-right direction. The lower sprocket support shaft 39 is driven by receiving power from the screw shaft 26A of the bottom screw 26.

As shown in FIG. 3, among the bucket moving paths 31 of the bucket type conveyor 30, the moving path section in which the bucket 50 moves from the lower sprocket 36 side to the upper sprocket 35 side is the lifting path section 31A, and the bucket 50 is the upper sprocket. The movement path portion that moves from the 35 side to the lower sprocket 36 side becomes the return path portion 31B. As shown in FIGS. 5, 7, and 8, a large number of movement guide wheels 40 are pivotally attached to the conveyor chain 37 at a predetermined pitch, and a lifting path portion 31A is provided in the rotation inner region of the conveyor chain 37. A movement guide member 41 is provided so that the movement guide wheels 40 of the conveyor chain 37 come into contact with each other in a rolling state.

As shown in FIGS. 3 and 7, the grains conveyed by the bottom screw 26 are thrown into the grain receiving region 31C of the bucket movement path 31 by the blade member 27 provided at the end of the transfer of the bottom screw 26. The thrown grains are received by one bucket 50 and transported upward. At this time, when the grains thrown out from the blade member 27 reach the grain receiving area 31C of the bucket movement path 31 by the linking portion 60 that links the drive of the blade member 27 and the drive of the bucket type conveyor 30, one Since one bucket 50 is located in the grain receiving area 31C, the grains transported by the bottom screw 26 can be efficiently inherited and transported to the bucket 50.
Further, when grains are retained in the lower end of the frying cylinder 32, the bucket 50 that reversely rotates from the grain receiving region 31C to the lower end of the lifting path portion 31A is the lower end of the frying cylinder 32. Move while scooping the grains that stay in the department.

The position of the bucket 50 moved to the upper end (top) of the upper sprocket 35 is set to the grain loading position as shown in FIGS. 3 and 9. At this grain loading position, the bucket 50 that has moved through the lifting path portion 31A reversely rotates along the upper sprocket 35 toward the return path portion 31B. Due to the centrifugal force generated in the bucket 50 during this reversal rotation, the grains stored in the bucket 50 are directed toward the stretching direction of the grain input flow path 33 in the input flow path forming body 34 (this). In the embodiment, it is thrown in (toward the front part). The grains introduced into the grain input flow path 33 fall onto the leveling disk 42 rotating in the grain storage unit 6. The grains that have fallen on the rotating leveling disc 42 are repelled in the radial direction of rotation and are dispersed substantially uniformly in the grain storage section 6.

Next, the bucket 50 of the bucket type conveyor 30 will be described in detail.
As shown in FIGS. 7 to 10, the bucket 50 includes a first plate portion 51 and a second plate portion 52 that are inclined so as to guide the grains into the inside of the bucket 50. The first plate portion 51 is composed of a part of the peripheral wall portion 54 of the bucket 50. The second plate portion 52 is provided on the moving front side of the first plate portion 51 at a predetermined interval H1 (see FIGS. 8 and 11). In the lifting path portion 31A, the second plate portion 52 is located above the first plate portion 51 and receives the grains stored in the bucket 50.

As shown in FIGS. 8 and 10, the bucket 50 includes a bottom wall portion 53 and a peripheral wall portion 54 continuous thereto, and opens in a rectangular shape on the front side of movement. The peripheral wall portion 54 of the bucket 50 is relative to the base end wall portion 54A that is bolted to the chain link 37A of the conveyor chain 37 and the tip end wall portion 54B that faces the base end wall portion 54A at a position separated from the conveyor chain 37. It includes a pair of side wall portions 54D facing each other. The tip wall portion 54B of the peripheral wall portion 54 is configured in an inclined posture that is separated from the conveyor chain 37 by the bucket opening end 54b, and the tip wall portion 54B in this tilted posture constitutes the first plate portion 51.
As shown in FIGS. 8 and 10, the bucket opening end 54d of the pair of side wall portions 54D moves from the line segment connecting the bucket opening end 54a of the base end wall portion 54A and the bucket opening end 54b of the tip wall portion 54B. It extends to the front side in a substantially triangular shape. The upper end side 54da of the extension wall portion 54Da of each side wall portion 54D is formed horizontally or substantially horizontally, and the tip end side 54db of the extension wall portion 54Da of each side wall portion 54D is formed perpendicularly or substantially perpendicular to the upper end side 54da. ing. The tip end side 54db of the extension wall portion 54Da of each side wall portion 54D is formed at a position slightly retracted toward the base end wall portion 54A from the bucket opening end 54b of the tip end wall portion 54B.
The second plate portion 52 is provided over the extension wall portion 54Da of the pair of side wall portions 54D, and is configured in an inclined posture parallel to or substantially parallel to the tip wall portion 54B of the bucket 50.

Then, as shown in FIG. 11, the grains stored in the bucket 50 move forward from the tip wall portion 54B constituting the first plate portion 51 on the tip side away from the conveyor chain 37. It is received by a second plate portion 52 provided on the side at a predetermined interval H1. Therefore, the maximum storage capacity of grains in the bucket 50 is the angle of repose based on the bucket opening end 54b of the tip wall portion 54B and the moving front side edge of the second plate portion 52 (the upper end of the lifting path portion 31A). It is determined by the angle of repose based on (becoming the edge). As a result, the grains received by the second plate portion 52 are stored by utilizing the space on the moving front side in the storage space of the bucket 50 (the upper space in the lifting path portion 31A). Moreover, the upper layer side of the grains in the bucket 50 stored at an angle of repose is received by the second plate portion 52 arranged at a predetermined interval H1 from the tip wall portion 54B, so that it is caused by vibration or the like. Grains spilling from the bucket opening end 54b of the tip wall portion 54B can also be reduced. As a result, the transport capacity of the bucket 50 can be greatly improved.

Further, as shown in FIG. 10, by extending the bucket opening end 54d of the pair of side wall portions 54D of the bucket 50 to the moving front side, the grains stored in the bucket 50 are lateral to the pair of side wall portions 54D. It is possible to prevent spilling. Moreover, by utilizing the extension wall portion 54Da of the pair of side wall portions 54D, the second plate portion 52 can be easily attached to a position separated by a predetermined interval H1 from the tip wall portion 54B of the bucket 50 on the moving front side. Can be done.

Further, as shown in FIG. 11, since the tip wall portion 54B of the bucket 50 and the second plate portion 52 are in an inclined posture parallel to or substantially parallel to each other, at the grain loading position of the upper end portion of the upper sprocket 35, The grains in the bucket 50 can be smoothly discharged.

As shown in FIGS. 8 and 11, the adjacent distance H2 between the second plate portion 52 of the bucket 50 and the tip wall portion 54B of the other bucket 50 adjacent to the moving front side thereof is the second plate portion H2 in the bucket 50. It is configured to be smaller than the predetermined distance H1 between the plate portion 52 and the tip wall portion 54B. That is, the distance between the tip wall portion 54B and the second plate portion 52 in the bucket 50 is set to a predetermined interval H1 capable of smoothly discharging the grains in the bucket 50. On the other hand, the adjacent interval H2 between the second plate portion 52 of the bucket 50 and the tip wall portion 54B of the other bucket 50 adjacent to the moving front side thereof is configured to be smaller than the predetermined interval H1 so that the bucket 50 The mounting pitch of the can be reduced. In the present embodiment, as shown in FIG. 8, the bottom wall portion 53 of the bucket 50 on the front side of the movement is configured to have a mounting pitch that is arranged so as to enter into the peripheral wall portion 54 of the bucket 50 on the rear side of the movement. As a result, the transfer capacity of the threshed product can be increased by increasing the number of buckets attached to the conveyor chain 37.

Next, the linking unit 60 that links the drive of the blade member 27 and the drive of the bucket type conveyor 30 will be described.
As shown in FIGS. 2 and 4 to 6, a terminal shaft portion 26a of the screw shaft 26A of the bottom screw 26 is attached to the transmission case main body 61A of the transmission case 61 attached to the lower part of the side plate 32A of the fried grain cylinder 32. A first bearing portion 62 that rotatably supports the shaft and a second bearing portion 63 that rotatably supports one end portion 39a of the lower sprocket support shaft 39 are provided. In the transmission case 61, a drive sprocket 64 is attached to the terminal shaft portion 26a of the screw shaft 26A, and a passive sprocket 65 is attached to one end portion 39a of the lower sprocket support shaft 39. The transmission chain 66 is wound around the drive sprocket 64 and the passive sprocket 65.
In the state where the transmission chain 66 is wound, when the grains thrown out from one blade member 27 reach the grain receiving area (threshing processed product receiving area) 31C of the bucket moving path 31, one bucket 50 is moved. The drive of the blade member 27 and the drive of the bucket type conveyor 30 are linked so as to be located in the grain receiving region 31C. As a result, the grains transported by the bottom screw 26 can be efficiently inherited and transported to the bucket 50.
In addition, in FIGS. 2 and 4 to 6, the transmission cover of the transmission case 61 is omitted.

In the grain receiving region 31C of the bucket movement path 31, as shown in FIGS. 3 and 7, the bucket 50 that has moved downward along the return path portion 31B reverses and rotates along the lower sprocket 36. It is set in the area. Further, as shown in FIGS. 3 and 7, a flight guide for guiding the grains thrown out from the blade member 27 to the grain receiving region 31C of the bucket movement path 31 on the bottom wall portion 32B of the fried grain cylinder 32. A portion 67 is provided. The flight guide portion 67 has a flight guide inclined surface 67a having a length extending from a position near the lower end of the rotation locus of the blade member 27 to a position near the moving tip locus of the bucket 50 in the grain receiving region 31C.

Next, the linkage adjusting unit 70 that adjusts the linkage state between the drive of the blade member 27 and the drive of the bucket type conveyor 30 will be described in detail.
As shown in FIGS. 4 to 6, a sprocket boss 71 is externally fitted and fixed to one end 39a of the lower sprocket support shaft 39. The sprocket boss 71 includes a boss portion 71A that is rotatably fitted in a through hole 65a formed in the center of the passive sprocket 65, and a connecting flange 71B that is fixedly connected to the passive sprocket 65 with bolts 72. Be prepared. Screw holes (not shown) into which bolts 72 are screwed are formed at a plurality of locations (two locations in the present embodiment) in the circumferential direction of the connecting flange 71B of the sprocket boss 71. Bolt insertion holes 74 through which bolts 72 are inserted are formed at a plurality of locations in the circumferential direction of the passive sprocket 65 corresponding to the screw holes of the connecting flange 71B. Each bolt insertion hole 74 is formed as an elongated hole along the circumferential direction. By adjusting the phase between the sprocket boss 71 and the passive sprocket 65 by the elongated holes, the linked state between the drive of the blade member 27 and the drive of the bucket type conveyor 30 can be adjusted.

Then, even when the grain receiving area (threshing processed product receiving area) 31C of the bucket moving path 31 fluctuates depending on the type of grain, the linking state between the drive of the blade member 27 and the drive of the bucket type conveyor 30 by the linkage adjusting unit 70 By the adjustment of, when the grain thrown out from the blade member 27 reaches the fluctuating grain receiving area 31C, one bucket 50 can be positioned in the fluctuating grain receiving area 31C.

Next, an example of the adjustment operation method of the linkage state by the linkage adjustment unit 70 will be described.
First, the bolt 72 that fixedly connects the connecting flange 71B of the sprocket boss 71 and the passive sprocket 65 is loosened and operated. In this state, the screw shaft 26A of the bottom screw 26 is rotated within the range of the elongated holes of the bolt insertion holes 74. The phase of the sprocket boss 71 and the passive sprocket 65 is adjusted by this rotation operation, and the linked state between the drive of the blade member 27 and the drive of the bucket type conveyor 30 can be adjusted.
Even if the lower sprocket support shaft 39 is rotated, the state of coordination between the drive of the blade member 27 and the drive of the bucket type conveyor 30 can be adjusted. However, in this case, since a load such as a conveyor chain 37 or a large number of buckets 50 is applied to the lower sprocket support shaft 39, it is easier to rotate the screw shaft 26A of the bottom screw 26 with less labor as described above. Can be done.

Next, a leveling disk 42 in which the grains introduced by the bucket type conveyor 30 are distributed and supplied substantially evenly in the grain storage section 6 will be described. As shown in FIGS. 2, 3 and 9, the leveling disk 42 is supported by the connection opening 80 of the input flow path forming body 34 communicating with the grain storage portion 6. The leveling disc 42 has a drive shaft 81 that receives power from the upper sprocket 35 and drives and rotates around the vertical axis core, a disc piece 82 that is attached to the drive shaft 81 in an integrally rotating state, and radial on the upper surface of the disc piece 82. The blade piece 83 provided in the above is provided.
Then, when grains fall on the disc piece 82 that rotates integrally with the drive shaft 81, the grains are flipped by the blade pieces 83 in the direction of the radius of gyration of the disc piece 82 and into the grain storage unit 6. Grains are stored on average.

[Other Embodiments]
The linkage adjusting unit 70 of the above-described embodiment is configured to adjust the phase between the sprocket boss 71 and the passive sprocket 65, but the blade member 27 is adjusted by adjusting the phase between the screw shaft 26A of the bottom screw 26 and the drive sprocket 64. May be configured to adjust the linkage state between the drive of the bucket type conveyor 30 and the drive of the bucket type conveyor 30.

4 Threshing Department (Threshing Sorting Department)
6 Reservoir (grain storage)
24 Conveyor section (screw transfer type first conveyor)
26 Bottom screw 27 Blade member 30 Bucket type conveyor 31 Bucket movement path 31C Threshing processed product receiving area (grain receiving area)
35 Upper rotating body (upper sprocket)
36 Lower rotating body (lower sprocket)
37 Endless rotary band (conveyor chain)
50 Bucket 51 1st plate 52 2nd plate 53 Bottom wall 54 Peripheral wall 54A Peripheral wall 54B Tip wall 54b Bucket opening end 54D Side wall 54Da Extension wall 54d Bucket opening end 60 Coordination adjustment part 70 H1 Predetermined interval H2 Adjacent interval

Claims (7)

Equipped with a bucket-type conveyor that transports the threshed product that has been threshed in the threshing section to the storage section.
The bucket type conveyor includes an endless rotating band driven by being wound around rotating bodies arranged vertically, and a plurality of buckets attached to the endless rotating band.
The bucket opens to the front side of movement and
The bucket includes a first plate portion and a second plate portion that are inclined so as to guide the threshed product into the inside of the bucket.
The second plate portion is a combine provided at a predetermined interval on the moving front side of the first plate portion. The bucket includes a bottom wall portion and a peripheral wall portion continuous thereto, and the peripheral wall portion is attached to the proximal wall portion attached to the endless rotating zone and at a position separated from the endless rotating zone. The tip wall portion facing each other and a pair of side wall portions facing each other are provided, the first plate portion is composed of the tip wall portion, and the second plate portion extends over the pair of side wall portions. The combine according to claim 1 provided in the above. The tip wall portion of the bucket is configured in an inclined posture so as to be separated from the endless rotation zone by the opening end of the bucket, and the second plate portion is provided parallel to or substantially parallel to the tip wall portion of the bucket. The combine according to claim 2. The bucket opening ends of the pair of side wall portions of the bucket are extended to the front side of the movement from the bucket opening ends of the tip wall portion, and the second plate portion is provided on the extension wall portion of the pair of side wall portions. The combine according to claim 2 or 3. The distance between the second plate portion of the bucket and the tip wall portion of the other bucket adjacent to the moving front side thereof is a predetermined distance between the second plate portion and the tip wall portion of the bucket. The combine according to any one of claims 2 to 4, which is configured to be smaller than the interval. A transport section provided below the threshing section to transport the threshed product to the bucket type conveyor is provided.
The transport unit includes a bottom screw extending in the left-right direction of the machine body, and a blade member provided at the transport end portion of the bottom screw and throwing a threshed product toward the bucket.
When the threshed product thrown out from the blade member reaches the threshed product receiving area of the bucket movement path, the blade member is driven and the bucket type conveyor is driven so that the bucket is located in the threshed product receiving area. The combine according to any one of claims 1 to 5, wherein a linking unit for linking with the drive of the above is provided. The combine according to claim 6, wherein the linking section is provided with a linking adjusting section for adjusting a linking state between the drive of the blade member and the drive of the bucket type conveyor.

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