JP7101587B2 - combine - Google Patents

Description

The present invention has a threshing processing unit that performs a handling process by a handling cylinder and leaks and sorts the object to be processed by a receiving net, and a threshing processing unit that is provided below the threshing processing unit and sorts the processed object that leaks from the receiving net. The present invention relates to a combine equipped with a sorting processing unit and a threshing device having.

In such a combine, for example, in a threshing device, a second product is lifted by a second reduction device (second reduction and lifting device in the patent document), and a flow guide body provided with an inclined guide surface (in the patent document). A technique is known in which the second product is returned onto the swing sorting device of the sorting processing unit while being guided by a communication member) (see Patent Document 1).

Japanese Unexamined Patent Publication No. 2010-263854 (see paragraphs “0035”, “0037”, “FIG. 4” to “FIG. 6”).

In the combine shown in Patent Document 1 above, a communication member that guides the second substance discharged from the discharge port of the second reduction device toward the inside of the sorting processing unit is provided on the discharge port of the second reduction device and the threshing side wall. It is provided in a range covering the formed opening.
If such a communication member is provided, the second product can be made without the need for a large-scale return conveyor or the like for directing the second product discharged from the discharge port of the second reduction device to the upstream side of the sorting processing unit. It is advantageous in that the re-sorting process can be effectively performed by returning the shaking sorting device to the upstream side, and the structure can be simplified and the device can be downsized.
However, in this structure, the forward discharge action of the second object due to the rotation of the rotary blade provided in the discharge port of the second reduction device does not uniformly act over the entire open range of the discharge port.
That is, in the state where the blade surface faces the front or the direction close to the front in the rotation angle range of the rotary blade, the release action of the second object by the rotary blade works effectively in the forward direction, but the blade surface does. If it deviates significantly from the front or near the front, the second object ejecting action by the rotary blades hardly acts in the forward direction, and the situation is such that it spills from the discharge port to the lower part near the discharge port, resulting in rocking sorting. It cannot be returned to the upstream side of the device.
Therefore, most of the second product discharged from the discharge port of the second reduction device can be guided to the communication member and returned to the upstream side of the swing sorting device to perform an effective re-sorting process. There is room for improvement in the fact that it is difficult for the re-sorting process by the rocking sorting device to sufficiently work on some of the second products that have spilled downward from the discharge port in the vicinity of the discharge port.

Therefore, the present invention is intended to provide a combine capable of more effectively performing the re-sorting process of the second product.

The combine of the present invention is provided with a threshing processing unit that performs a handling process by a handling cylinder and leaks and sorts a material to be processed by a receiving net, and a material to be processed that is provided below the threshing processing unit and leaks from the receiving net. A threshing device having a sorting processing unit for sorting processing is provided, and the sorting processing unit is provided with a swing sorting device for rocking sorting while transferring the object to be processed backward, and below the rocking sorting device. The swing sorting device is provided and is provided below the swing sorting device and behind the swing sorting device to collect the first thing sorted by the swing sorting device. A second item recovery unit that collects the second item sorted by the above, and a second reduction device that is connected to the second item collection unit and that lifts the second item and discharges it above the rocking sorting device. , And the second product discharge port of the second reduction device is the side wall of the left and right side walls of the threshing device on the side where the second reduction device is installed. The second product is oscillated and sorted in the second product drop path from the second product discharge port to the oscillating sorting device inside the threshing device, which is provided on the lateral side wall portion located above the transfer surface. A flow-down guide body for guiding toward the device is provided, and the flow-down guide body is located on the inner side of the threshing device with respect to the lateral side wall portion and at a position where the flow-down guide body overlaps with the object transfer surface in the swing sorting device in a plan view. The object to be processed is formed on an inclined surface that descends forward to guide the second object toward the upper side in the transfer direction of the object to be processed. A chaf sheave that sorts and leaks the grains inside is provided, and the flow guide is arranged so that the lower end thereof is located between the receiving net and the object transfer surface of the chaf sheave in a side view. Has been done.

According to this configuration, a flow guide body for guiding the second product toward the swing sorting device is provided in the second product falling path from the second product discharge port to the rocking sorting device inside the threshing device. There is. The flow guide is provided on the inner side of the threshing device and at a position overlapping with the surface of the object to be transferred in the rocking sorting device in a plan view from the lateral side wall portion, and is directed toward the upper side in the direction of transferring the object to be processed. It is formed on a sloping surface that descends forward to guide the second object.
Therefore, the second product that has spilled downward from the second product discharge port to the vicinity of the second product discharge port can be received by the flow guide. Then, the received second object can be returned to the upstream side of the swing sorting device by utilizing the front-down inclined surface of the flow-down guide body. This makes it possible to more effectively perform the re-sorting process for the second product.
Further, according to this configuration, since the lower end of the flow guide body is higher than the object transfer surface of the chaff sheave, the second object falling from the lower end of the flow guide body moves to the upper side in the process object transfer direction. After moving, it is placed on the object transfer surface of the chaff sheave. As a result, the object transfer surface by the chaff sheave in the range overlapping with the flow guide in the plan view is effectively utilized, and the second object is subjected to the re-sorting process for as long as possible.

In the combine of the present invention, the flow guide is provided only in the upper region of the rocking sorting device, in the left-right width direction of the threshing device, only in the region on the side where the second discharge port is provided. It is preferable to have.

According to this configuration, the flow guide body existing at a position overlapping with the object transfer surface in the rocking sorter in a plan view has a relatively small area as compared with the area of the object transfer surface in the rocking sorting device. And exists only in the area on the side where the second discharge port is provided. Therefore, the object to be processed that has been dropped and supplied from the threshing processing unit is not received in a wide range such as the entire width of the object to be processed transfer surface. Therefore, there is no possibility of increasing the processing load such that the object to be processed is received by the entire width of the object transfer surface and the entire object is returned to the upper side in the object transfer direction.
Even so, it is good at catching the second product that has spilled downward near the second product discharge port, where it tends to occur more often in the area on the side where the second product discharge port is provided, and in the direction of transferring the object to be processed. It is easy to return to the side and ensure that the second product is re-sorted.

In the combine of the present invention, the rocking sorting device is configured to be wider than the receiving net in the left-right width direction of the threshing device, and the flow guide is disengaged from the location of the receiving net in a plan view. It is preferable that it is provided at a position.

According to this configuration, it is difficult for the object to be dropped from the receiving net to be directly placed on the flow guide body provided at a position away from the location of the receiving net. Is less likely to be returned to the upper side in the direction of transfer of the object to be processed, and it is easier to exert the flow guidance action of the second object better.

In the combine of the present invention, an auxiliary sorting plate for receiving the material to be discharged near the rear part of the threshing processing unit is provided at a position above the rear part of the chaf sheave in the processing material transfer direction. It is preferable that the flow guide is provided side by side with the auxiliary sorting plate.

According to this configuration, an auxiliary sorting plate for receiving the object to be discharged near the rear part of the threshing processing section is provided at the upper part of the rear part of the chaf sheave on the object transfer surface in the process transfer direction. , The object to be treated discharged near the rear part of the threshing processing unit can be efficiently sorted by the auxiliary sorting plate.
Since the flow guide is provided side by side with the auxiliary sorting plate, for example, the chaff sheave is provided on the front side or the rear side of the auxiliary sorting plate in the direction of transferring the object to be processed. It is easy to avoid a decrease in processing efficiency on the surface for transferring the object to be processed. In other words, the degree of mixing of the second product, which has a relatively high grain mixing ratio, with the processed material discharged near the rear of the threshing processing unit, which has a considerably low grain mixing ratio, can be reduced. It is easy to perform the sorting process in the above relatively efficiently.

In the combine of the present invention, it is preferable that the auxiliary sorting plate and the flow guide body are integrally formed by a common support frame body.

According to this configuration, the flow guide can be supported by using the support frame that supports the auxiliary sorting plate, and the structure can be simplified.

It is a left side view showing a head-feeding combine. It is a top view which shows the head-feeding type combine. It is a left side view schematically showing the inside of a threshing apparatus. It is a front view which shows the upper part inside the threshing apparatus. It is a right side view which shows the upper part of a threshing apparatus. It is a horizontal sectional view which shows the inside of a threshing apparatus. It is a perspective view which shows the sheave case. It is a top view which shows the rotation sensor. FIG. 8 is a sectional view taken along line IX-IX in FIG. It is an exploded perspective view which shows the bottom part of the 2nd thing collection part. It is sectional drawing which shows the bottom part of the 2nd thing collection part. It is explanatory drawing which shows the mounting state of the bearing holder in a screw shaft.

Hereinafter, an embodiment of a head-feeding combine as an example of the combine according to the present invention will be described with reference to the drawings.
Unless otherwise specified, the front-back direction and the left-right direction in the description of the present embodiment are defined as follows. That is, the traveling direction on the forward side (see arrow F in FIG. 1) is "forward" and the traveling direction on the backward side (see arrow B in FIG. 1) during working travel of the self-removing combine to which the present invention is applied is "". "Rear", the direction corresponding to the right side (see arrow R in FIG. 2) with respect to the forward posture in the front-back direction is "right", and the direction corresponding to the left side (see arrow L in FIG. 2) is "left". ". Therefore, the left-right direction of the machine corresponds to the width direction of the traveling machine.

[Overall composition of combine]
The head-feeding combine shown in FIGS. 1 and 2 includes an airframe frame 1 and a traveling device 2 that supports the airframe frame 1. A boarding operation unit 3 is provided on the right side of the front portion of the aircraft. The boarding operation unit 3 is provided with a control operation tool (not shown) and a driver's seat 4, and a cabin 5 that covers the control operation tool and the driver's seat 4. An engine (not shown) is provided below the driver's seat 4.

In front of the boarding operation unit 3, a harvesting unit 6 for harvesting crops in the field is provided. Behind the boarding operation unit 3, a grain storage tank 7 for storing grains and a grain discharge device 8 for discharging grains in the grain storage tank 7 are provided. A feed chain 9 for sandwiching and transporting the cut grain culm is provided on the left side of the machine body. To the left of the grain storage tank 7, a threshing device 10 for threshing the cut grain culms carried by the feed chain 9 is provided. A straw waste processing device 18 is continuously provided on the rear side of the threshing device 10. The straw waste processing device 18 receives the straw discharged after the threshing process from the feed chain 9 and holds and transports the straw backward. A straw cutting device 28 for cutting the straw transported by the straw processing device 18 with a cutter 29 is provided below the portion on the transport end side of the straw discharging device 18.

[Harvest Department]
The harvesting unit 6 is configured to have a plurality of row cutting specifications (for example, a six-row cutting specification). The harvesting unit 6 includes a plurality of (for example, seven) weeding tools 13, a plurality of (for example, six) raising devices 14, a cutting device 15, and a lifting and transporting device 16. The weeding tool 13 weeds the crops in the field. The raising device 14 causes the weeded crop. The cutting device 15 cuts the caused crop. The lifting and transporting device 16 sandwiches the root side of the cut stalk culm, lays the tip side sideways, and changes its posture in the direction while transporting it backward toward the threshing device 10.

[Threshing device]
As shown in FIG. 3, the threshing apparatus 10 has a threshing processing unit C1 that performs a processing of handling cut grain culms by a handling cylinder 11 and leaks and sorts a material to be processed by a receiving net 12, and a lower portion of the threshing processing unit C1. Is provided with a sorting processing unit C2 that sorts and processes the object to be treated that has leaked from the receiving net 12.

The threshing processing unit C1 is provided with a handling cylinder 11 in a handling chamber 17 formed in the upper portion, and is provided with a receiving net 12 below the handling cylinder 11.
The handling cylinder 11 can rotate around the rotation axis Y1 extending in the front-rear direction of the machine body. The receiving net 12 is provided so as to face about half a circumference on the lower half side of the handling cylinder 11. A dust exhaust fan 19 for discharging dust to the outside is provided behind the handling chamber 17.

The sorting processing unit C2 is located below the threshing processing unit C1.
The sorting processing unit C2 includes a swing sorting device 20 that swings and transfers the object to be processed backward while sieving and sorting, a wall insert 21 that blows sorting air to the swing sorting device 20, and a swing sorting device 20. A swing sorting device 22 provided below the swing sorting device 20 and behind the swing sorting device 22 to collect the first grain (single grain, etc.) sorted by A second product collection unit 23 for collecting the second product (grains with branch stalks, etc.) selected by 20 is provided.

The first product collection unit 22 is provided with the first screw 24 for transporting the grain of the first product to the right. At the right end of the first screw 24, a grain raising device 25 for lifting and transporting the grain of the first grain to the grain storage tank 7 is interlocked and connected.
The second product collection unit 23 is provided with a second screw 26 for transporting the grain of the second product to the right. At the right end of the second screw 26, a second reduction device 27 (as a component of the second reduction path) for reducing the grain of the second product to the rocking sorting device 20 is interlocked and connected.

As shown in FIGS. 3 to 7, wall portions 30 are provided at the front end portion and the rear end portion of the handling chamber 17, respectively. The front wall portion 30 constitutes the front wall portion of the handling chamber 17. The rear wall portion 30 constitutes the rear wall portion of the handling chamber 17.

The front and rear wall portions 30, 30 each include a movable wall 31 and a fixed wall 32, respectively. The handling cylinder 11 is rotatably supported by the front movable wall 31 and the rear movable wall 31 via the handling cylinder shaft 11a.
A transmission shaft 34 for transmitting the power of the engine to the straw cutting device 28 is provided so as to be relatively rotatable over the fixed wall 32 on the front side and the fixed wall 32 on the rear side.

The movable wall 31 and the fixed wall 32 are connected via a connecting arm 33. That is, one end side of the connecting arm 33 is rotatably supported by the transmission shaft 34 around the swing axis Y2 that coincides with the axis of the transmission shaft 34. Then, the other end side of the connecting arm 33 is fixed to the movable wall 31, whereby the movable wall 31 can swing up and down around the swing axis Y2 extending in the front-rear direction of the machine body via the connecting arm 33, and the fixed wall 32 It will be in a state of being supported by.

The right side portion of the threshing device 10 is composed of a right side wall 35R. The right side wall 35R extends to the rear end of the fuselage. Of the right side wall 35R, the portion on the rear side of the rear wall portion 30 is not shown, but is inclined so as to be located on the right side toward the rear side along the direction of transporting the waste straw by the straw waste processing device 18. It is configured to have a wall portion.
The left side portion of the threshing device 10 is composed of a left side wall 35L provided at a position below the feed chain 9.

As shown in FIG. 4, front-rear facing frames 40L and 40R extending in the front-rear direction of the machine body are provided on the left and right sides of the threshing device 10, respectively. The front-rear facing frame 40L on the left side extends to the rear side from the rear end of the handling cylinder 11. The front-rear frame 40L on the left side is composed of a square pipe having a substantially square cross section. The front-rear facing frame 40R on the right side extends to the rear side from the rear end of the handling cylinder 11. The front-rear frame 40R on the right side supports the front fixed wall 32, the rear fixed wall 32, and the right side wall 35R. The front-rear frame 40R on the right side is composed of a square pipe having a substantially rectangular cross-sectional shape (horizontally long substantially rectangular shape).

As shown in FIGS. 4 and 5, a handling cylinder cover 42 that covers the handling cylinder 11 from above and an upper right portion cover 43 located to the right of the handling cylinder cover 42 are provided in the upper part of the handling chamber 17. Has been done.
The handling cylinder cover 42 extends to the rear side from the rear end of the handling cylinder 11. The upper right cover 43 extends to the rear side of the rear end of the handling cylinder 11. The upper right cover 43 is supported by the front-rear frame 40R on the right side so as to be able to swing up and down via a hinge 43a having a swing axis extending in the front-rear direction of the machine body.

The handling cylinder cover 42 is supported by the handling cylinder frame 44. The handling body frame 44 includes a pair of front and rear movable walls 31 and a front and rear facing frame 40L on the left side. The front-rear facing frame 40L on the left side is located on the outside of the fuselage frame 44 in the left-right direction of the fuselage.
The handling body frame 44 swings up and down around the swing axis Y2 of the transmission shaft 34 extending in the front-rear direction of the machine body via the front movable wall 31, the rear movable wall 31, the connecting arm 33, and the transmission shaft 34. Possiblely supported by the fixed wall 32.

The handling body frame 44 is supported so as to be vertically swingable via an electro-hydraulic cylinder 45.
The electro-hydraulic cylinder 45 is provided over a movable wall 31 on the rear side of the handling chamber 17 and a fixed wall 32 on the rear side. Therefore, by extending the electro-hydraulic cylinder 45, the handling cylinder frame 44 rises and swings, and at the same time, the handling cylinder 11 supported by the movable wall 31 rises and swings, and the inside of the handling chamber 17 is opened.
As shown in FIGS. 4 to 6, the electro-hydraulic cylinder 45 is arranged on the front side of the rear wall portion 30 of the handling chamber 17 and on the inner side of the handling chamber 17 of the right side wall 35R.

[Second product reduction route]
As a movement path of the second product from the right end portion corresponding to the end portion of the second screw 26 in the grain transport direction to the rocking sorting device 20, there is a second product reduction path R1 including the second reduction device 27.
The second reduction device 27 is located behind the wall portion 30 on the rear side of the handling chamber 17, and includes a vertically facing cylindrical portion 27A and a vertical screw 27B provided inside the tubular portion 27A. The inside of the tubular portion 27A serves as a transportation route for the second product. The upper end of the vertical screw 27B is provided with a rotary blade 27C for horizontally ejecting the second object lifted by the vertical screw 27B from the second object discharge port 27D at the upper end.

The second reduction device 27 is arranged so that the second reduction port 27D is located on substantially the same surface as the wall portion 30 on the rear side of the handling chamber 17 in the front-rear direction. Then, of the left and right side walls of the threshing device 10, the lateral side wall portion 35Ra located above the object transfer surface 20A of the rocking sorting device 20 on the right side wall 35R on the side where the second reduction device 27 is installed. The second product discharge port 27D is provided so as to open.
Of the lateral side wall portion 35Ra, a portion connected to the second discharge port 27D is provided with a bulging guide portion 36 that bulges outward to the right lateral side from the other portion of the right side wall 35R. The bulging guide portion 36 has an inner / outer inclined guide surface 36a that bulges laterally outward toward the side closer to the second discharge port 27D, and lowers as it approaches the right side wall 35R away from the second discharge port 27D. A downhill inclined surface 36b is formed.

Therefore, the second object ejected horizontally from the second object discharge port 27D is guided by the inner / outer inclined guide surface 36a and the downward inclined surface 36b of the bulging guide portion 36, and is provided in the sorting processing unit C2. It is discharged inwardly downward of the sorting processing unit C2 so as to be placed on the object transfer surface 20A of the rocking sorting device 20.
The second object drop path from the second object discharge port 27D to the object transfer surface 20A of the swing sorting device 20 and the lifting path existing inside the cylindrical portion 27A are the second screw 26. It constitutes a second product reduction path R1 from the right end portion corresponding to the terminal portion in the grain transport direction to the rocking sorting device 20.

[Swing sorting device]
The rocking sorting device 20 is configured as follows.
As shown in FIGS. 3 and 8, the swing sorting device 20 has a frame-shaped sheave case 50 formed in a rectangular shape in a plan view, a first grain pan 51, a plurality of first sieve lines 52, and a chaff sheave 53. It is provided with a straw rack 54, a second grain pan 55, a grain receive 56, an auxiliary sorting plate 57, and a second sieve line 58.
The sheave case 50 is oscillated by an eccentric cam type drive unit 59.

The upper surface side of the sheave case 50 is the object transfer surface 20A of the rocking sorting device 20, and the object to be processed 20A from the threshing processing unit C1 and the second reduction device 27 are on the object transfer surface 20A. Things are supplied.
The upper surface of the sheave case 50 constituting the object transfer surface 20A is configured to be wider in the left-right direction than the width in the left-right direction of the receiving net 12, and as shown in FIGS. 4 and 6, the receiving net 12 and the right side wall 35R. The center position of the sheave case 50 in the left-right direction is deviated to the right side of the center position of the handling cylinder 11 and the receiving net 12 in the left-right direction so that a certain distance is generated between the two.

The auxiliary sorting plate 57 is located above the rear portion of the chaf sheave 53, and is provided with a vertical space between the chaff sheave 53 and the object to be transferred surface 20A so that the object to be processed on the upstream side can pass therethrough. Has been done.
As shown in FIG. 3, the auxiliary sorting plate 57 of the threshing processing unit C1 is located near the rear portion of the handling chamber 17 and at a position facing between the rear end portion of the receiving net 12 and the rear wall portion 30. It receives the object to be processed with a large amount of waste straw discharged from near the rear and transports it backward. The object to be processed having a large amount of waste straw is passed to the straw rack 54 together with the object to be processed passing under the auxiliary sorting plate 57 via the second sieve line 58.

[Flow guide]
In the second product reduction path R1, the second product that is horizontally ejected from the second product discharge port 27D follows the second product drop path from the second product discharge port 27D to the upper surface of the swing sorting device 20. .. In this second object drop path, as most of them are shown as the pop-out path R2 in FIGS. 4 to 6, as the rotary blade 27C rotates, the swing sorting on the front side of the second object discharge port 27D is performed. It is sent onto the device 20. However, a part of the second product has a cylinder cover 46 that covers the lateral side of the electro-hydraulic cylinder 45 existing in front of the second product discharge port 27D, as shown as a stall drop path R3 in the figure. There is a risk that the sliding contact or collision will dampen the forward popping force and cause the product to fall near the second discharge port 27D. In this way, if the product falls too close to the second product discharge port 27D, the second product may reach the end of the swing sorting device 20 before it is sufficiently re-sorted. The above-mentioned splash path R2 and stall drop path R3 also correspond to the second reduction path R1.
In the present embodiment, in order to avoid such inconvenience, a flow guide 60 is provided at the end of the second reduction path R1.

As shown in FIGS. 3 to 7, the flow guide body 60 faces the rear end portion of the receiving net 12 and the rear wall portion 30 near the rear portion of the handling chamber 17 in the front-rear direction. .. Then, in the vertical direction, the flow guide 60, like the auxiliary sorting plate 57, is spaced vertically apart from the object transfer surface 20A of the chaf sheave 53 so that the object to be processed on the upstream side can pass through. The lower end is arranged and provided so as to be located between the receiving net 12 and the object transfer surface 20A of the chaff sheave 53 in a side view.

The flow guide body 60 is located at the right end of the auxiliary sorting plate 57 side by side with the auxiliary sorting plate 57 in the left-right direction, and is supported by a sheave case 50 which is a support frame common to the auxiliary sorting plate 57. ..
At this time, the flow guide body 60 is located at a position deviated from the existing location of the receiving net 12 in a plan view, does not overlap with the receiving net 12, and overlaps with the object transfer surface 20A in a plan view. It is provided at the position where it is used. The flow-down guide body 60 is formed on a front-down inclined surface 61 so that the upper surface thereof guides the second object toward the upper side in the processing object transfer direction.

Due to the presence of this flow guide body 60, among the second objects that have been ejected to the front side due to the rotation of the rotary blade 27C, the force to eject to the front side by sliding contact or collision with the cylinder cover 46 is exerted. The attenuated second object can also be supplied while being guided toward the upstream side of the object transfer surface 20A of the chaff sheave 53.
That is, the second object, which is in sliding contact with or collides with the cylinder cover 46 and whose forward ejection force is attenuated, falls downward from the vicinity of the second object discharge port 27D as shown by the stall drop path R3. Also, guided by the downward inclined surface 36b of the lateral side wall portion 35Ra existing below the lateral side wall portion 35Ra and the forward descending inclined surface 61 of the flow guide body 60, in the processed object transfer direction on the processed object transfer surface 20A of the chaff sheave 53. The second item will be moved to the upstream side.

[Rotation sensor]
As shown in FIGS. 8 and 9, a rotation sensor 62 for detecting the rotation speed of the vertical screw 27B is provided at the upper end of the tubular portion 27A in the second reduction device 27.
The rotation sensor 62 is attached to an L-shaped bracket 63 fixed to the upper end of the tubular portion 27A. The L-shaped bracket 63 includes a mounting piece portion 63a and a rising piece portion 63b with respect to the upper end portion of the tubular portion 27A, and a rotation sensor 62 is laterally mounted on the rising piece portion 63b.

The sensor plate 64 to be detected by the rotation sensor 62 is fixed to the screw shaft 27Ba of the vertical screw 27B and is attached so as to rotate together with the screw shaft 27Ba.
The bearing holder 65 for fixing the ball bearing 27Bb that supports the upper end portion of the screw shaft 27Ba is integrally fixed to the mounting piece portion 63a of the L-shaped bracket 63 by spot welding.

Therefore, the sensor plate 64 mounted on the screw shaft 27Ba whose upper end side is supported by the bearing holder 65 fixed to the mounting piece 63a of the L-shaped bracket 63 is positioned with the rotation sensor 62 fixed to the rising piece 63b. Relationships are always kept constant. Therefore, it is not necessary to adjust the relative positions of the sensor plate 64 and the rotation sensor 62 each time the second reduction device 27 is assembled and disassembled.
In the figure, reference numeral 66 is a mounting plate for connecting and fixing the bearing holder 65 and the L-shaped bracket 63 to the upper end portion of the tubular portion 27A, and is configured to be removable by using a connecting bolt 67.

〔others〕
10 to 12 show a second product recovery unit 23 provided in the sorting processing unit C2.
As shown in FIG. 3, the second item collecting unit 23 is provided at the bottom of the sorting processing unit C2 near the rear portion, and is located at a position where it can be viewed from below the rear portion of the machine body and inspected.
For the inspection, a plurality of round hole-shaped inspection windows 23a are formed on the bottom surface of the second object collecting unit 23 in a state of being scattered in a row along the axial direction of the second screw 26.

The inspection window 23a of the second item collection unit 23 is configured to be openable and closable by a strip-shaped opening / closing plate 68 facing the bottom surface of the second item collection unit 23. That is, the opening / closing plate 68 is formed with opening holes 68a equal to or slightly larger than the inspection window 23a at the same intervals as the inspection window 23a. Therefore, by sliding the opening / closing plate 68 along the axial direction of the second screw 26 by a predetermined amount, the inspection window 23a can be opened to the outside or closed at once.
The slide operation of the opening / closing plate 68 is performed by being guided by a guide rail 69 welded and fixed to locations corresponding to both the front and rear sides of the opening / closing plate 68 at the bottom surface portion of the second object collecting portion 23.
An operation rod 68b for a push-pull operation is fixed to the end of the opening / closing plate 68.

In the second object collection unit 23 described above, the second screw 26 is mounted in a state of being suspended over the right side wall 35R and the left side wall 35L of the handling chamber 17.
In the work when the second screw 26 is attached, the insertion opening on the right side wall 35R side of the handling chamber 17 with the bearing holder 70 that supports the screw shaft 26a externally fitted to the left end of the screw shaft 26a. It is inserted into the handling chamber 17 from (not shown), and the bearing holder 70 is inserted and fixed in the mounting hole (not shown) formed in the left wall 35L of the handling chamber 17.
When performing this work, the maximum diameter portion of the bearing holder 70 is formed to be slightly larger than the outer diameter of the second screw 26, and the outer peripheral portion of the bearing holder 70 is placed on the bottom surface of the second product recovery unit 23. The second screw 26 is pushed in from right to left.

However, as described above, an inspection window 23a for inspection is formed on the bottom surface of the second item collection unit 23. Therefore, in this embodiment, the chamfered portion 70a is formed on the outer peripheral portion of the bearing holder 70 so that the outer peripheral portion of the bearing holder 70 does not fall into the inspection window 23a portion and become caught.
Therefore, even if the outer peripheral portion of the bearing holder 70 falls into the inspection window 23a portion, it can be easily overcome by the inclination of the chamfered portion 70a, and the pushing operation of the second screw 26 can be easily performed.

[Another Embodiment]
Hereinafter, another embodiment in which the above embodiment is modified will be described. The following alternative embodiments can be applied in combination to the above embodiments as long as there is no contradiction.

(1) In the above embodiment, a structure in which the flow guide body 60 is integrally configured with the auxiliary sorting plate 57 has been exemplified, but the structure is not limited to this. For example, the flow-down guide body 60 and the auxiliary sorting plate 57 may be separately attached to the sheave case 50, or the flow-down guide body 60 may be provided without the auxiliary sorting plate 57.
For other configurations, the same configurations as those in the above-described embodiment may be adopted.

(2) In the above embodiment, in the same manner as the auxiliary sorting plate 57, the flow guide 60 is in the vertical direction to the extent that the object to be processed on the upstream side can pass between the flow guide 60 and the object transfer surface 20A of the chaf sheave 53. The structure provided at intervals is illustrated, but the structure is not limited to this structure.
For example, the flow guide body 60 may be provided so that the lower end thereof is at the same level as the object transfer surface 20A of the chaff sheave 53. In this case, it is desirable that the upper surface of the flow guide body 60 is an inclined surface 61 that descends forward and is inclined so that the central side is lower in the left-right width direction of the chaff sheave 53.
For other configurations, the same configurations as those in the above-described embodiment may be adopted.

(3) In the above embodiment, the flow guide 60 has a structure provided at a position away from the location of the receiving net 12 in a plan view, but the structure is not limited to this.
For example, the flow guide 60 may be provided over a position where the flow guide 60 is separated from the existing portion of the receiving net 12 in a plan view and a range including a part of the existing portion of the receiving net 12.
For other configurations, the same configurations as those in the above-described embodiment may be adopted.

(4) In the above embodiment, an actuator having an electro-hydraulic cylinder 45 as an actuator for ascending and swinging the handling cylinder frame 44 and the handling cylinder 11 is exemplified, but the structure is not necessarily limited to this structure. For example, a hydraulic cylinder or an electric cylinder may be adopted.
For other configurations, the same configurations as those in the above-described embodiment may be adopted.

The present invention is applicable not only to a head-feeding combine, but also to a whole-culm harvester that feeds all the culms of the harvested culm into the threshing device.

10 Threshing device 11 Handling cylinder 12 Receiving net 20 Swing sorting device 20A Processed object transfer surface 22 First item collection unit 23 Second item collection unit 27 Second reduction device 27D Second item discharge port 35Ra Side side wall 50 Support frame Body 53 Chaf Sheave 57 Auxiliary Sorting Plate 60 Flow Guide 61 Front-down inclined surface C1 Threshing processing unit C2 Sorting processing unit

Claims (5)

A threshing processing unit that performs a handling process by a handling cylinder and leaks and sorts the object to be processed by a receiving net, and a sorting process that is provided below the threshing processing unit and sorts the processed object that leaks from the receiving net. Is equipped with a threshing device with a part and
The sorting processing unit is provided with a swing sorting device that swings and sorts the object to be processed while transferring it backward, and a rocking sorting device that is provided below the swing sorting device and collects the first item sorted by the swing sorting device. A second item recovery unit, which is provided below the swing sorting device and behind the first item collection unit and collects the second item sorted by the shaking sorting device, and a second item collection unit. A second reduction device, which is connected to the second item collection unit, lifts the second item, and discharges the second item above the rocking sorting device, is provided.
The second product discharge port of the second reduction device is located on the side wall of the left and right side walls of the threshing device on the side where the second reduction device is installed, above the surface to which the object to be processed of the rocking sorting device is transferred. It is provided on the lateral side wall located in
A flow guide body for guiding the second product toward the rocking sorting device is provided in the second product falling path from the second product discharging port to the rocking sorting device inside the threshing device.
The flow guide is provided on the inner side of the threshing device and at a position overlapping with the surface of the object to be transferred in the rocking sorting device in a plan view from the lateral side wall portion, and is provided on the upper side in the direction of transferring the object to be processed. Formed on a sloping surface that descends forward to guide the second object toward
The rocking sorting device is provided with a chaff sheave that sorts grains in the object to be processed and leaks them while transferring the object to be processed backward.
The flow guide is a combine whose lower end is arranged so as to be located between the receiving net and the object transfer surface of the chaff sheave in a side view . The first aspect of the present invention, wherein the flow guide is provided only in the upper region of the rocking sorting device, in the left-right width direction of the threshing device, on the side where the second product discharge port is provided. Combine. The rocking sorting device is configured to be wider than the receiving net in the left-right width direction of the threshing device.
The combine according to claim 1 or 2, wherein the flow guide is provided at a position away from the location of the receiving net in a plan view. An auxiliary sorting plate for receiving the object to be discharged near the rear part of the threshing processing section is provided at a position above the rear part of the chaf sheave on the surface to transfer the object to be processed in the direction of transferring the object to be processed.
The combine according to any one of claims 1 to 3 , wherein the flow guide body is provided side by side with the auxiliary sorting plate. The combine according to claim 4 , wherein the auxiliary sorting plate and the flow guide body are integrally formed by a common support frame body.

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