JP2004275133A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problems of a conventional combine harvester having an increase total length of two wires to increase the total weight of a chaff sieve and a part for adjusting the opening of a winnower shutter and the troubles to hang straw dust, etc., on the two wires at a part where these two wires are superposed together and deposit fine dust on the wires because the chaff sieve and the winnower shutter opening adjusting mechanism of the combine harvester are connected from the discharged straw weight detector at the rear part of the machine body to the winnower shutter at the front part of a side of the screening part and the chaff sieve placed in the middle of a side of the screening part. <P>SOLUTION: The combine harvester has an interlocking mechanism 173 on a side of a screening part 17 and near a mechanism 170 to adjust the opening of the chaff sieve. The interlocking mechanism and the discharged straw weight detector 172, the interlocking mechanism and the chaff sieve, and the interlocking mechanism and the winnower shutters 141a, 141b are connected through wires 142, 148 to transmit the working amount. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention includes a threshing unit and a sorting unit, and opens a chaff sheave of a swing sorting device according to an amount of straw, such as a grain stalk, conveyed by a straw chain or the like, or an amount of an object to be processed in the sorting unit. The present invention relates to a combine for adjusting the degree and opening of the Karamin shutter.
[0002]
[Prior art]
Conventionally, while adjusting the opening of the chaff sheave provided in the swinging sorting device of the sorting unit according to the amount of grain culm conveyed by the straw chain provided at the back of the fuselage of the combine, Karamin generates a sorting wind. A combine technology for adjusting the opening of a Karamin shutter provided at an inlet for introducing outside air into the air is known.
In such a combine, two wires are used: a wire connecting the waste amount detecting device provided at the lower part of the waste chain and the chaff sheave, and a wire connecting the waste amount detecting device and the Karamin shutter. Thus, the opening of the chaff sheave and the opening of the Karamin shutter were adjusted. For example, as described in Patent Document 1.
[0003]
[Patent Document 1]
JP-A-2002-345322
[0004]
[Problems to be solved by the invention]
However, in the combine described in Patent Literature 1, two wires from the waste amount detection device provided at the lower part of the waste chain at the rear of the combine machine are separated from the Karamin shutter provided at the front side of the sorting unit by the sorting machine. It was connected to the chaff sheave in the middle of the side of the unit. Therefore, the lengths of the two wires are both increased, and there is a problem that the total weight of the components related to the adjustment of the opening of the chaff sheave and the opening of the Karino shutter is increased. In addition, since two long wires are arranged along the side surface of the sorting unit, straw waste or the like is caught on the two wires, particularly at a place where the two wires are arranged to overlap, or There was a problem that fine dust was deposited on the wire.
[0005]
[Means for Solving the Problems]
The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.
[0006]
That is, according to claim 1, in the combine for adjusting the opening degree of the chaff sheave provided in the swing sorting device according to the threshing amount,
An interlocking mechanism that interlocks the shutter, the waste amount detection mechanism, and the actuator that is provided at the chaff sheave and Karin suction port is provided on the side of the selection unit and near the chaff sheave opening change mechanism, and the interlocking mechanism and the waste amount detection mechanism , The interlocking mechanism and the chaff sheave, and the interlocking mechanism and the Karino shutter are each connected by a single wire to transmit the operation amount.
[0007]
In Claim 2, the interlocking mechanism is an opening degree setting body whose rotation angle is changed via an actuator by a signal from a controller, and a straw amount follower that is rotated by the operation of the straw amount detection mechanism. Is provided.
[0008]
In Claim 3, the controller sets the opening degree based on one or both of information from an operating means provided in a driver's cab and information from a sensor for detecting an amount of an object to be processed on a chaff sheave. Is set.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of the invention will be described.
FIG. 1 is a left side view of a combine according to an embodiment of the present invention, FIG. 2 is a plan view of a combine according to an embodiment of the present invention, and FIG. 3 is a right side of the combine according to an embodiment of the present invention. 4 is a front view of a combine according to an embodiment of the present invention, FIG. 5 is a schematic left side view of a threshing unit and a sorting unit, FIG. 6 is a right side view of a dust outlet processing cylinder, and FIG. FIG. 8 is a rear cross-sectional view of a threshing unit and a sorting unit, FIG. 9 is a schematic diagram showing a sensor, FIG. 10 is a block diagram relating to an opening adjustment mechanism of a chaff sheave and a Karamino shutter, FIG. Is a schematic diagram showing a mechanism for adjusting the opening of the chaff sheave and the Karino shutter, FIG. 12 is a diagram showing an interlocking mechanism, FIG. 13 is a side view showing a straw switching device, and FIG. 14 is a straw switching device viewed from the direction of arrow E. 15 is a plan view of the straw switching device viewed from the direction of arrow D. Be a side view, FIG. 16 is a plan sectional view showing a motor mounting member.
[0010]
Hereinafter, an overall configuration of a combine 201 according to an embodiment of the present invention will be described with reference to FIGS.
Note that the present invention is not limited to the combine 201 of the present embodiment, but is widely applicable to a combine (self-removal type / general-purpose type) having a karamino and a chaff sieve in the sorting section.
[0011]
The body frames 2L and 2R are mounted on the crawler-type traveling device 1, and the raising and reaping section 3 is disposed at the front end of the body frames 2L and 2R so as to be able to move up and down. The raising and cutting section 3 protrudes the weeding plate 4 at the front end to divide the culm, and raises a case 5 at the rear thereof to raise the cereal by rotating a tine 6 protruding from the raising case 5. The culm is raised, and the root of the plant is cut off by the cutting blade 7 arranged at the rear of the weeding board 4.
[0012]
The cut culm is conveyed to the rear by an upper conveying device, a lower conveying device, and a vertical conveying device 8. The culm is transported. A straw chain 18 is provided at the rear end of the feed chain 9, and a straw processing unit 19 including a straw cutter device, a diffusion conveyor, and the like is formed below the rear of the straw chain 18 to remove the straw. After being cut into straw pieces, they are uniformly released into the field while spreading.
[0013]
A grain tank 13 for storing refined granules after sorting is arranged on the side of the threshing unit 12, and an operation cab 14 is arranged in front of the grain tank 13, while a grain tank 13 is arranged in the rear of the grain tank 13. A vertical auger 15a of the discharge auger 15 is erected, and the Glen tank 13 is rotatable sideways around the vertical auger 15a, thereby facilitating maintenance of a drive system and a hydraulic system disposed inside the machine. I have.
A discharge conveyor 16 is disposed at the bottom of the Glen tank 13 in the front-rear direction, and power is transmitted from the discharge conveyor 16 to the discharge auger 15, and from the tip of the discharge auger 15 to a truck or the like in the Glen tank 13. The grain can be discharged. Further, below the threshing unit 12, a sorting unit 17 is disposed, and sorts kernels and grains from the threshing unit 12 (hereinafter, referred to as “processed material”) and sends the grain to the Glen tank 13. It is transported.
[0014]
Next, the threshing unit 12 will be described with reference to FIGS. 5, 6, 7, and 8. FIG.
A handling chamber 28 formed in the threshing unit 12 is provided with a substantially cylindrical handling cylinder 21 which is suspended in the front-rear direction of the fuselage. On the outer peripheral surface of the handling cylinder 21, handling teeth 21a, 21a,. Is planted. On the other hand, the feed chain 9 constrains the base of the cereal rod, and the tip of the cereal rod is conveyed to the rear of the machine body while being inserted below the handling cylinder 21. By the rotation of the handling cylinder 21, the teeth 21 a, 21 a... Come into contact with the paddy (processed material) and threshing is performed, and the receiving net 20 moves the lower half of the handling room 28 in which the handling cylinder 21 is stored. It is provided so as to cover, so that only the object to be treated (mixture of paddy and chopped straw waste) falls downward.
[0015]
At the rear of the handling cylinder 21, a substantially cylindrical dust outlet processing cylinder 22 is provided in a processing chamber 29 on the side of the Glen tank 13 (the right side of the machine body in this embodiment). The dust outlet processing cylinder 22 is horizontally and axially supported in the front-rear direction so as to be parallel to the handling cylinder 21. A rear (right) side surface of the handling cylinder case 61 that covers the handling cylinder 21 and forms the handling chamber 28 is a front portion (left side) of a processing cylinder case 62 that covers the dust outlet processing cylinder 22 and forms the processing chamber 29. ) It communicates with the side surface via the dust outlet 23. Unprocessed materials such as spikelets adhered particles that could not be processed by the handling cylinder 21 are transported into the processing chamber 29 from the dust outlet 23. The processing drum net 24 is provided so as to cover the lower half of the processing chamber 29 in which the dust outlet processing drum 22 is stored, and passes through a hole (mesh) provided in the processing drum net 24 to be processed ( Only the mixture of paddy and chopped straw waste) is allowed to fall downward.
Further, on the outer peripheral surface of the rear end portion of the dust sending port processing cylinder 22, wing bodies 91, each of which is a long plate body, are fixedly provided. The blades 91 rotate integrally with the dust port processing cylinder 22, and the straw waste conveyed to the rear of the processing chamber 29 by the dust port processing cylinder 22 removes the blades 91. And is discharged below the dust outlet processing cylinder 22 and guided to the outside of the machine by a guide plate (not shown).
[0016]
Hereinafter, the detailed configurations of the inside of the dust outlet processing cylinder 22 and the processing chamber 29 will be described.
A screw-shaped spiral 22a is formed on the outer peripheral surface of the dust outlet processing cylinder 22. The spiral body 22a is provided with a plurality of processing teeth 22b.
When the dust outlet processing cylinder 22 is driven to rotate, unprocessed materials such as spike sticking particles transported into the processing chamber 29 from the dust outlet 23 are converted into rice and branch spikes while being transported to the rear of the machine. Separated.
[0017]
At this time, as shown in FIGS. 6 and 7, the outer wall (right side) of the rear right side plate portion of the handling cylinder case 61 which forms a part of the case covering the dust outlet processing cylinder 22 is provided on the handling cylinder case side. The reed valves 63 are provided. Also, on the inner wall (left side) of the front right side plate of the processing cylinder case 62 which forms most of the case covering the dust outlet processing cylinder 22, processing cylinder case side reed valves 64 are provided. Can be
A reed valve 65 is formed by the pair of handle cylinder case-side reed valves 63 and the processing cylinder case-side reed valve 64. The reed valve 65 has a predetermined reed angle (a vector B perpendicular to the action surface of the reed valve 65) so that the unprocessed material is sent in the transport direction (arrow A in FIG. 6) by the rotation of the dust port processing cylinder 22. (That is, an angle formed by a vector A (arrow A) in the front-rear direction) at the upper half of the inner wall of the processing chamber 29 (that is, in a substantially spiral shape).
[0018]
By providing the reed valves 65 having the lead angle θ on the inner wall surface of the processing chamber 29 in this manner, the rotation of the dust outlet processing cylinder 22 toward the rear of the processing chamber 29 (in the discharge direction). The transport of the unprocessed material is promoted, and the unprocessed material transported from the handling chamber 28 to the processing chamber 29 via the dust outlet 23 moves quickly in the processing chamber 29. Therefore, stagnation of the unprocessed material at the rear part of the handling chamber 28 and the front part of the processing chamber 29 (that is, in the vicinity of the dust outlet 23) and the backflow of the unprocessed material from the processing chamber 29 to the handling chamber 28 are prevented, and The sorting ability is improved.
In the present embodiment, the reed valve 65 (the reed valve 63 on the handling cylinder case and the reed valve 64 on the processing cylinder case) is disposed in front of the processing chamber 29 in which the dust outlet 23 is provided. The present invention is not limited to this, and may be provided in the middle or the rear of the processing chamber 29 according to the amount of unprocessed material generated.
[0019]
Further, the reed valve 65 is composed of two members, a handle cylinder case-side reed valve 63 and a processing cylinder case-side reed valve 64, and is attached to the handle cylinder case 61 and the processing cylinder case 62, respectively. By providing the reed valve 65 over the portion, the working area of the reed valve 65 can be increased, and the ability to transport unprocessed materials is improved. In addition, disassembly and assembly during cleaning and maintenance in the processing chamber 29 are easy, and maintenance is excellent.
[0020]
As shown in FIG. 6, the front end portion 63a of the handle cylinder case-side reed valve 63 and the rear end portion 64b of the processing cylinder case-side reed valve 64 that constitute the reed valve 65 are in the front-rear direction when viewed from the side, that is, not yet. The unprocessed material that overlaps (overlaps) in the transport direction of the processed material and moves along the operation surface of the processing cylinder case-side reed valve 64 is reliably placed on the operation surface of the processing cylinder case-side reed valve 63. Handed over. Therefore, even though the reed valve 65 is divided into two members, it is possible to maintain a high ability to transport the unprocessed material.
In this embodiment, the handle case-side reed valve 63 is four parallel to the upper part of the processing chamber 29 from the upper end of the dust outlet 23 in a side view, and approximately the handle chamber 28 from the front end of the dust outlet 23. It is provided to the rear end position. Further, the processing cylinder case side reed valve 64 is provided from the front and the middle of the dust outlet 2 to the upper position of the processing chamber 29 from the upper and lower halfway of the dust outlet 2, and from the front end of the dust outlet 23 to the substantially rear end position of the dust outlet 23. , And can be reliably conveyed from the dust outlet 23 into the processing chamber 29.
[0021]
Further, as for the magnitude of the lead angle θ, the length L1 from the rear end portion 63b of the handling cylinder case side reed valve 63 to the front end portion 64a of the processing cylinder case side reed valve 64 in the transport direction of the unprocessed material is: It is preferable that the width is equal to or more than half of the opening width L2 of the dust outlet 23 in the transport direction of the unprocessed material ((L1) ≧ (１ ／) × (L2)).
With such a configuration, the unprocessed material transferred from the dust outlet 23 into the processing chamber 29 can be quickly moved in the discharge direction (rearward), and the rear part of the handling chamber 28 and the front part of the processing chamber 29 ( That is, stagnation of the unprocessed material in the vicinity of the dust outlet 23 and backflow of the unprocessed material from the processing chamber 29 to the handling chamber 28 are prevented, and the threshing / sorting ability is improved.
If the reed angle θ is excessively large, the friction between the working surface of the reed valve 65 and the unprocessed material becomes excessive, so that the load related to the rotational drive of the processing cylinder 22 increases, and the cause of paddy crushing, crushing, etc. It may be. Therefore, it is necessary to appropriately select the lead angle θ depending on the use conditions of the combine.
[0022]
Also, as shown in FIG. 6, from the central part of the processing chamber 29 away from the dust outlet 23 to the rear part, the partition plates 66 having no lead angle θ (θ ≒ 0) are provided on the inner wall of the processing drum case 62. Is provided. As described above, from the central part to the rear part of the processing chamber 29, rather, the unprocessed material is rubbed while being prevented from being quickly conveyed backward, and is sufficiently separated and sorted, so that separation and sorting (filtration) is performed. Can be promoted and loss can be reduced.
[0023]
In addition, the processing net 24 shown in FIG. 5 is formed by a press net having a large number of punched holes in a plate material, so that the flowability of the processed product (the drop of Ease) is improved. In addition, manufacturing costs can be reduced.
[0024]
Further, as shown in FIG. 6, the processing teeth 22b of the rotating dust-sending port processing cylinder 22 are configured to pass between the resistance plates 67 provided on the inner wall of the processing cylinder case 62. Thus, even when the amount of unprocessed material conveyed into the processing chamber 29 is large (for example, during harvesting work at high speed), the long straw that stays on the processing drum 24 and hinders the filtration of paddy Can be efficiently shredded, separation / sorting (filtration) can be promoted, and loss can be reduced. Further, at this time, by cutting the tip portions of the processing teeth 22b, 22b... Into the shape of a blade, it is possible to easily cut the long straw.
[0025]
Next, the sorting unit 17 will be described with reference to FIG.
In the sorting unit 17, swing sorting by the swing sorting device 27 and wind sorting by Karino 26 are performed, and the sorting is performed into the first thing, the second thing, straw waste, and the like.
The swing sorting device 27 is housed in the machine frame 35. The front end of the swing sorting device 27 extends below the front end of the handling cylinder 21, and the rear end of the swing sorting device 27 extends below the rear end of the dust outlet processing cylinder 22. The front and rear length of the dynamic sorting device 27 is determined. A swing shaft (not shown) is provided in the lower front part of the swing sorting device 27, and a swing drive mechanism 34 is provided in the rear portion, and the swing sorter 27 is attached to the machine frame 35 by the swing drive mechanism 34. It is configured to swing with respect to.
[0026]
A foreboard plate 30 is provided at the front of the swinging sorting device 27, and a downstream plate 31 is provided below and below the foreboard plate 30. The front and rear floating grain plates 30 and 31 are formed by shaping a plate-like member into a corrugated form, and the processed material (mixture with grains and straw chips) passing through the receiving net 20 is subjected to the front and rear floating grain plates 30 and 31. 31 and is conveyed to the rear of the machine by the swing of the swing sorting device 27. At the rear of the downstream grain board 31, a mesh-shaped grain sheave 32 as a second sorting section is continuously provided, and above the grain sheave 32 and the downstream grain board 31, and behind the upstream grain board 30. Is equipped with a chaff sheave 33 as a first sorting unit. Behind the chaff sheave 33, a straw rack 129 is provided.
The opening degree of the chaff sheave 33 can be adjusted in accordance with the amount of the processed material to be fed into the swinging sorter 27, and the grains and fine straw chips fall down through the chaff sheave 33, and the chaff sheave 33 Straw and the like larger than the opening 33 are transported backward. At this time, the airflow from the front to the rear of the sorting unit 17 is generated between the chaff sheave 33 and the Glen sieve 32 by the Karino 26, and a part of the fine straw waste is blown back and separated from the grain. .
[0027]
The Karino 26 is disposed below the rear part of the upstream grain board 30 and below the front part of the downstream grain board 31, and sends a sorting wind to the chaff sheave 33 and the Glen sheave 32. A second fan 46 is also provided between the first conveyor 36 and the second conveyor 37 as a sub-pumping fan to blow the sorting wind, and the wind is also sorted at the rear of the sorting unit 17 where the wind of the sorting wind by the Karino 26 is weakened. So that the sorting performance does not deteriorate.
[0028]
Above the rear end of the swinging sorting device 27, a suction fan 25 is provided horizontally across the entire width, and the suction fan 25 rides on the flow of the sorting wind supplied from the Karino 26 and the second fan 46. Dust is sucked and discharged outside the machine.
[0029]
A first conveyor 36 and a second conveyor 37 are provided laterally in the left-right direction at an intermediate position in the front-rear direction below the swing sorting device 27. The positional relationship between the first conveyor 36 and the second conveyor 37 is such that the first conveyor 36 is closer to Karino 26 (the front part of the machine frame 35) and the second conveyor 37 is farther from Karino 26 (the rear part of the machine frame 35). ).
The right end of the first conveyor 36 is connected to a frying conveyor 38 provided so that its longitudinal direction (transport direction) is substantially vertical, and the upper end of the frying conveyor 38 communicates with the inside of the Glen tank 13. ing.
[0030]
The mixture of the grains, the spike sticking grains, the immature grains, and the fine straw chips that have been introduced into the sorting unit 17 and leaked onto the upstream grain board 30 are mixed in the course of being leaked onto the chaff sieve 33. Due to the airflow generated from the front and rear of the sorting unit 17 generated by the part 27, a part of the fine straw waste is blown back. The mixture of the grains, the spike sticking grains, the immature grains and the fine straw chips that have leaked onto the chaff sieve 33 is conveyed backward by the rocking of the rocking sorting device 27. Grains, spike sticking particles, fine straw chips and the like fall below the opening of the chaff sheave 33, and large straw chips are conveyed to the rear of the chaff sheave 33 and discharged outside the machine via the straw rack 29.
[0031]
Kernels, immature kernels, spiked kernels, fine straw chips and the like that have fallen below the opening of the chaff sheave 33 are leaked onto the downstream grain board 31 and the Glen sieve 32. Also at this time, due to the sorting wind from Karino 26, some of the fine straw waste is blown backward and separated.
Of the grains, immature grains, spike sticking grains and fine straw chips, etc., which have leaked onto the Glen Sheave 32, the grains, immature grains, fine straw chips, etc., pass through the Glen Sheave 32 and fall downward. At this time, the heaviest grain (the first) is collected in the first collection unit 109 (a depression on the bottom surface of the sorting unit 17 provided behind the flocking plate 39, in which the conveyor 36 is housed). Then, it is conveyed to the Glen tank 13 from the first conveyor 36 through the fry conveyor 38.
On the other hand, unprocessed grains mixed with a small weight of immature grains, a part of fine straw chips, ear cutting grains, grains, and the like are blown rearward by a sorting wind from Karamino 26, and the second collection unit 110 (1 The second conveyer 37 is accommodated in the bottom of the sorting unit 17 provided behind the second collection unit 109 and accommodates the second conveyor 37). After being conveyed to 10 and having the branch stalk removed by the branch stalk processing cylinder 11, it is reloaded on the upstream grain plate 30 (or on the chaff sheave 33).
[0032]
Hereinafter, the dust transport conveyor 50 will be described with reference to FIGS. 5 and 8. The dust transport conveyor 50 in this embodiment is a screw-type conveyor, and is suspended in the front-rear direction below the processing trunk network 24.
Further, in this embodiment, the gear externally fitted to the front end of the rotary shaft of the dust transport conveyor 50 and the gear externally fitted to the front end of the rotary shaft of the dust outlet processing cylinder 22 mesh with each other. The ratio between the number of rotations of the dust transport conveyor 50 and the number of rotations of the dust port processing cylinder 22 is substantially constant. Therefore, the amount of the object to be processed separated by the dust feeding port processing cylinder 22 and captured by the dust transport conveyor 50 and the amount of the object transported forward by the dust transport conveyor 50 are determined at a predetermined ratio. Can be maintained. The number of rotations of the dust transport conveyor 50 and the dust port processing cylinder 22, such as a gear, a belt and a pulley, or a chain and a sprocket, at the rear end side of the rotating shaft of the dust transport conveyor 50 and the dust port processing cylinder 22. The driving force may be distributed while maintaining the ratio substantially constant.
The object to be processed, which has fallen downward through the holes (mesh) provided in the processing drum net 24, is forwarded by the dust transport conveyor 50 (that is, in the direction opposite to the transport direction of the dust outlet processing drum 22). Direction). Then, the object to be processed is re-introduced into the sorting unit 17 through a dust outlet 50a provided at the front end of the dust transport conveyor 50. More specifically, the object to be processed falls on the chaff sheave 33 to a position above the flow tray 39 (that is, above the first conveyor 36).
In this embodiment, the dust transport conveyor 50 is a screw-type conveyor, but is not limited thereto, and may be a belt-type conveyor. Further, the position where the object to be processed is re-input by the dust transport conveyor 50 may be on the upstream grain plate 30.
[0033]
Hereinafter, the sensor 51 will be described with reference to FIGS. 5, 8, and 9.
The sensor 51 detects the amount of straw accumulated on the upstream grain plate 30 and the chaff sheave 33 provided in the upper front part of the sorting unit 17 and adjusts the opening degree of the chaff sheave 33. 51a and a sensor unit 51b.
The contact body 51a is an elongated plate-shaped member, and one end of the contact body 51a is attached to a rotation shaft of the sensor unit 51b. The sensor unit 51b is a rotation angle sensor such as a resolver, a rotary potentiometer, and a rotary encoder, and can detect the attitude of the contact body 51a with respect to the body in the form of an angle.
[0034]
As shown in FIG. 9, the thickness T [mm] of the object to be treated (mixture of paddy and chopped straw waste) deposited on the chaff sheave 33 in the vertical direction is a height from the upper surface of the chaff sheave 33 to the sensor unit 51 b. H <mm>, the length R [mm] of the contact body 51a, and the rotation angle φ [rad] of the contact body 51a detected by the sensor unit 51b, 0 <T <H− when φ = 0. When R, φ> 0, it can be expressed as T = H−R × cos θ. The rotation angle φ of the contact body 51a is set to zero when the contact body 51a is facing directly downward (when not in contact with the workpiece), and the contact body 51a contacts the workpiece to be conveyed backward. It is defined to take a positive value when it turns backward.
On the other hand, as long as the sorting unit 17 can separate the straw waste and the rice with high accuracy, the amount of the fall from the chaff sheave 33 to the grain sieve 32 is increased as much as possible, and the opening degree and the processing of the chaff sheave 33 at which the sorting processing capacity is maximized. The relationship with the vertical thickness T [mm] of the product (mixture of the paddy and the chopped straw waste) is obtained in advance by experiments or the like.
Then, the opening degree of the chaff sheave 33 is adjusted based on the information about the rotation angle φ from the sensor 51 (that is, the information about the accumulation amount of the object to be processed on the chaff sheave 33 and the upstream grain plate 30). A method of adjusting the opening of the chaff sheave 33 will be described later in detail.
[0035]
For example, in a case where the processing object is piled up just under the sensor 51 in a mountain-like manner and is not piled up at the chaff sheave 33 and other places on the upstream grain plate 30, it is detected by the sensor 51. The thickness T [mm] obtained from the rotation angle φ does not accurately reflect the actual deposition amount of the processing object on the chaff sheave 33 and the upstream grain plate 30 (in this case, the actual deposition amount). Therefore, the amount of deposition is estimated to be larger than that). Therefore, the fact that the objects to be processed are evenly distributed on the chaff sheave 33 and the upstream grain plate 30 is not only from the viewpoint of accurately obtaining the thickness T [mm], but also from the viewpoint of performing the sorting efficiently. Even important.
[0036]
Actually, the object to be processed is evenly leveled on the chaff sheave 33 and the upstream grain plate 30 due to the swing of the sorting unit 17, but only under the dust discharge port 50 a at the front end of the dust transport conveyor 50, In particular, when the traveling speed at the time of harvesting is high (the amount of the harvested material that is fed into the threshing unit 12 and the sorting unit 17 per unit time is large), the objects to be processed that have fallen from the dust outlet 50a accumulate in a mountain shape. There are cases.
Therefore, the mounting position of the sensor 51 is a position slightly away from a local “mountain” generated by the workpiece to be re-introduced into the sorting unit 17 by the dust transport conveyor 50, and It is preferable that the object to be re-introduced into the sorting unit 17 and the object to be processed that have passed through the receiving net 20 drop and be mixed by swinging and be arranged at a uniform position.
[0037]
As shown in FIGS. 5 and 8, in the present embodiment, the rotation axis of the handling drum 21 is closer to the left than the left and right center of the sorting unit 17 (left and right center line CC shown in FIG. 8). The rotation axis of the mouth processing cylinder 22 is shifted to the right. Accordingly, the dust transport conveyor 50 that transports the processing object generated in the dust outlet processing cylinder 22 also has its rotation axis shifted to the right side from the left and right center of the sorting unit 17, and the sorting unit is moved from the dust outlet 50 a to the sorting unit. The object to be processed falling on 17 forms a mountain 70 at a position closer to the right than the left and right center of the sorting unit 17.
The sensor 51 is located behind the dust outlet 50a of the dust transport conveyor 50 (that is, on the downstream side of the sorting unit 17 in the transport direction of the workpiece) and at the center of the sorting unit 17 in the left and right directions. It is located closer. Therefore, the detected value of the amount of the object to be processed deposited on the sorting unit 17 does not become significantly deviated from the actual deposition amount due to the influence of the peak 70, and the sorting unit is controlled by the dust transport conveyor 50. The amount of the object to be processed is detected at a position where the object to be re-introduced into 17 and the object to be processed that have passed through the receiving net 20 have been mixed and evenly leveled by swinging. Therefore, it is possible to accurately detect the deposition amount of the object to be processed.
The position of the sensor 51 is either (1) behind the body of the dust discharging port 50a of the dust feeding / conveying conveyor 50 (that is, downstream of the sorting unit 17 in the conveying direction of the workpiece), or (2) handling cylinder. The same effect can be obtained by disposing so as to satisfy either one of the sorting cylinder 17 and the handling cylinder 21 below the left and right center of the sorting unit 17.
Further, in the present embodiment, the sensor unit 51b of the sensor 51 is a rotation angle sensor such as a resolver, a rotary potentiometer, and a rotary encoder. However, the present invention is not limited to this. The switch may be turned on and off when is turned by a predetermined angle or more. Further, a capacitance sensor or the like may be used.
[0038]
Next, a control mechanism of the opening of the chaff sheave 33 and the opening of the Karamino shutters 141a and 141b will be described with reference to FIGS.
In the harvesting operation by the combine 201, the harvesting operation and the threshing / sorting operation are performed simultaneously. Therefore, since the harvested area per unit time (cutting speed) increases in proportion to the traveling speed of the combine 201 during the harvesting operation, the processing speed of the threshing / sorting operation (that is, the processing capacity of the sorting unit 17) also increases. Need to be done.
More specifically, if the amount of cereal stalk input to the threshing unit 12 increases, the opening degree of the chaff sheave 33 is increased to increase the amount of the object to be dropped below the chaff sheave 33, and the Karamin shutters 141a and 141b It is necessary to perform an operation of increasing the opening degree of the wind and increasing the flow rate of the sorting wind by Karino 26 to improve the wind sorting ability.
[0039]
The interlocking mechanism 173 is based on the amount of cereal culm threshed in the threshing unit 12 and the amount of material to be processed remaining on the chaff sheave 33, and the opening degree of the chaff sheave 33 and the amount of air of the sorting wind by Karino 26 (in this embodiment, The opening of the shutters 141a and 141b for sucking outside air into the air conditioner 26 is adjusted.
As shown in FIG. 10, the interlocking mechanism 173 is connected as inputs to a controller 165 and a waste amount detecting mechanism 172 that detects the amount of cereal culm threshed by the threshing unit 12.
In addition, a chaff sheave opening change mechanism 170 and a Karino shutter opening change mechanism 171 are connected to the interlocking mechanism 173 on the output side.
The chief sheave opening changing mechanism 170 is provided on the chief sheave 33 and includes a chief sheave operation arm 180 for adjusting the opening of the chief sheave 33, a spring 176 for urging the chief sheave operation arm 180, and the like.
The Karino shutter opening change mechanism 171 is configured by an arm, a link, and the like for rotating the Karamino shutters 141a and 141b.
[0040]
First, the controller 165 connected to the interlocking mechanism 173 as an input side will be described.
[0041]
The controller 165 receives signals from various sensors and operation switches (input side) provided in the combine 201 and transmits various commands to various actuators (output side) based on the received signals. There is a command to the interlocking mechanism 173 (drive of the motor 183 in this embodiment) as a part of such a function.
In this embodiment, the controller 165 is connected to the sensor 51 for detecting the amount of the material to be processed remaining on the chief sheave 33, the selection adjustment dial 167 for inputting the type of crop, and the crop switch 166.
The controller 165 also includes a grain culm sensor 168 attached to the rear side of the raising case 5 of the mowing unit 3 to detect the length of the grain culm to be mowed, and a work clutch provided in the cab 14. A cutting switch 193 for detecting the engagement / disengagement of the cutting clutch by a lever, a feed chain clutch 194 for turning on / off the drive of the feed chain 9 at the feed end side of the feed chain 9, and a constant rotation drive of the raising / cutting unit 3 from vehicle speed synchronization. Cutting switch 195, a vehicle speed sensor 198 provided in the transmission case of the machine to detect the vehicle speed, a flow rate sensor 196, and a rotation position (angle) of the opening operation arm 185 in contact with the opening setting body 189. An opening setting body turning angle sensor 187 and the like for detecting the turning position of the opening setting body 189 are further connected.
[0042]
The crop change switch 166 and the sorting adjustment dial 167 are input means operated by an operator to determine the set opening of the chaff sheave 33, and are provided in the operator's cab 14 in this embodiment.
The crop change switch 166 adjusts the set opening of the chaff sheave 33 according to the type of crop. In this embodiment, the types of crops assumed are rice and wheat, and the setting opening of the chaff sheave 33 is set to be slightly smaller when wheat is selected than when rice is selected.
The selection adjustment dial 167 is provided near the driving handle in the cab 14, and the operator operates the selection adjustment dial 167 to operate the set opening of the chaff sheave 33.
For example, when the crop is moist, the selection adjustment dial 167 is operated so that the set opening of the chaff sheave 33 is slightly larger than when the crop is dry. Further, when there are many branch veins in the harvested product, the selection adjustment dial 167 is operated so that the set opening of the chaff sheave 33 is slightly smaller than when there are few branch veins.
[0043]
The “initial setting chaff opening degree” of the chaff sheave 33 is determined by the crop switch 166 and the sorting adjustment dial 167 described above.
[0044]
On the other hand, the detection signal of the sensor 51 is received by the controller 165, and the amount of the object to be processed on the chaff sheave 33 is obtained based on the detection signal. Then, the controller 165 determines the opening degree of the chaff sheave 33 (hereinafter referred to as “calculated chaff opening degree”) necessary for processing the amount of the object to be processed obtained from the sensor 51, the crop switch 166 and the sorting adjustment dial. 167 is compared with the initial setting chaff opening degree of the chaff sheave 33.
At this time, (1) the larger opening of the chaff sheave 33 among the calculated chaff opening and the initial setting chaff opening, and (2) the smaller opening of the chaff sheave 33 among the calculated chaff opening and the initial setting chaff opening. Finally, the controller 165 finally instructs the interlocking mechanism 173 to select one of the calculated chaff opening and (4) the always-set chaff opening (that is, the rotation of the motor 183). (Hereinafter referred to as “controller-side set opening”). Regarding the selection of the controller-side setting opening, a selection means (a dial or the like) may be provided in the operator's cab 14 so that the operator can select either of them. Good.
[0045]
As described above, when the “controller-side setting opening” is determined, the opening-degree setting body 189 is rotated by the drive of the motor 183 serving as an actuator until the position corresponding to the controller-side setting opening is reached. At this time, information on the turning position of the opening setting member 189 detected by the opening setting member turning angle sensor 187 is transmitted to the controller 165, and the turning amount of the drive shaft 183d of the motor 183 is determined based on the information. Is done.
Note that the motor 183 is a motor such as a stepping motor that can acquire information on the rotation angle, so that the opening degree setting body rotation angle sensor 187 can be omitted.
[0046]
Subsequently, a description will be given of the straw amount detection mechanism 172 which is also connected to the interlocking mechanism 173 as an input side.
The waste amount detecting mechanism 172 is provided below the waste chain 18, detects information on the amount of waste (cereal stems) conveyed to the rear of the machine by the waste chain 18, and outputs the information to the interlocking mechanism 173. Is transmitted. In this embodiment, the straw amount detection mechanism 172 and the interlocking mechanism 173 are mechanically connected by a straw amount detection wire 147.
As shown in FIG. 11, a chain guide (trapping rod) 144 is disposed on the lower side of the straw chain 18 for holding the straw, and a detection rod 143 is vertically provided on the chain guide 144. The lower end of the detection rod 143 is in contact with the detection plate 145a from above. One end of a detection arm 145b is also fixed to a rotation shaft 145d fixed to the end of the detection plate 145a, and the rotation shaft 146d is pivotally attached to the body of the combine 201 via a mounting member 146. Is done.
Therefore, when the amount of the straw (grain stalk) conveyed to the rear of the machine by the straw chain 18 increases, the chain guide (pinching rod) 144 is pushed down, and the detection plate 145a and the detection arm 145b rotate. Then, the wire end 147a of the straw amount detection wire 147 attached to the detection arm 145b is drawn in a direction protruding from the wire outer end 147c.
[0047]
In the present embodiment, the straw processing amount is detected from the straw amount transported by the straw chain 18. However, the method for detecting the threshing processing amount is not limited to this. It is also possible to configure so that the threshing amount can be detected by knowing the amount of grain culm conveyed by the feed chain 9 and the amount processed in the sorting unit 17.
[0048]
Next, a detailed configuration of the interlocking mechanism 173 will be described.
As shown in FIGS. 10, 11 and 12, the interlocking mechanism 173 is provided on the left side of the machine casing 35 of the sorting unit 17. The interlocking mechanism 173 mainly includes a base 186, an opening degree setting body rotation angle sensor 187, a rotation axis 191, a motor 183, an opening degree setting body 189, a mounting plate 184, an opening degree operation arm 185, a rod 192, and a rotation axis. 199, a rotation bracket 197 and the like.
The interlocking mechanism 173 is located at a position in the vicinity of the side surface of the machine frame 33 of the sorting unit 17 and the chaff sheave operation arm 180 for adjusting the opening of the chaff sheave 33 (in the present embodiment, the side surface of the machine frame 35 is (A position between the Karamin 26 and the chaff sheave operation arm 180).
[0049]
The base 186 is a plate-shaped member, has bolt holes 186a, 186a,..., And is attached to the left side of the machine frame 35 by bolting. By removing the bolts to which the base 186 is attached, the interlocking mechanism 173 can be integrally removed from the machine frame 35, and workability during maintenance is excellent.
An opening setting body rotation angle sensor 187, a rotation shaft 191, a motor 183 as an actuator, a rotation shaft 199, and the like are attached to the base 186 from the upper part to the lower part.
[0050]
The motor 183 is driven to rotate based on a signal from the controller 165. A drive shaft 183d that rotates by driving the motor 183 is provided in a gear case 183c provided at an end of the motor 183, and a gear 183a externally fitted to the drive shaft 183d is a gear of the opening degree setting body 189. It is engaged with the portion 189a.
[0051]
The opening degree setting body 189 is a substantially fan-shaped member, and a gear part 189a including a plurality of teeth is formed in an arc part thereof. In addition, the opening degree setting body 189 is loosely and rotatably fitted to the rotating shaft 191 at a position that is the center of the arc portion. On the board of the opening degree setting body 189, a mounting member 189b is provided at a position opposite to the distal end of the mounting plate 184 with the stopper 184b interposed therebetween, and the wire outer end 148c of the Karino shutter interlocking wire 148 is mounted. Can be
Further, a detection rod 189c is fixed to the upper end of the opening setting body 189, and a sensor arm 187a of an opening setting body rotation angle sensor 187 which is a potentiometer type angle sensor mounted on the base 186 is provided. Abut.
In this manner, the rotation position (angle) of the opening degree setting body 189 can be detected from the rotation angle of the sensor arm 187a of the opening degree setting body rotation angle sensor 187.
[0052]
The mounting plate 184 is a plate-shaped member, and its root is fixedly mounted on the board surface of the opening degree setting body 189. A distal end side of the mounting plate 184 protrudes from a side edge of the opening degree setting body 189, and a wire outer end 147d of the straw discharge detection wire 147 is fixed to a lower end of the mounting plate 184 via a mounting member 184a. On the other hand, a part of the root of the mounting plate 184 is bent to form a stopper 184b.
[0053]
The opening operation arm 185, which is a waste amount follower, is a plate-shaped member from which three arms of a lower arm 185a, an upper arm 185b, and a horizontal arm 185c protrude. The shaft 191 is loosely fitted rotatably.
A wire end 147b on the side protruding from the wire outer end 147d is attached to the tip of the lower arm 185a.
In addition, a wire end protruding from a wire outer end 148c of the Karamino shutter interlocking wire 148 is located at a position closer to the rotation shaft 191 than a position where the wire end 147b is attached at a tip end of the lower arm 185a. 148a is attached.
A spring 190 as an urging means is interposed between the distal end of the upper arm 185b and the upper end of the mounting plate 184. The left end of the lower arm 185a of the opening operation arm 185 is connected to the mounting plate 184. The stopper 184b is urged in a direction of contacting (turning clockwise in FIG. 12).
One end of a rod 192 is rotatably connected to the tip of the horizontal arm 185c.
[0054]
The other end of the rod 192 is pivotally attached to one end of a rotation bracket 197, and a substantially central portion of the rotation bracket 197 is loosely fitted to the rotation shaft 199 so as to be rotatable. The wire end 142a of the chaff sheave interlocking wire 142 is attached to the end side. The wire outer end 142c of the chaff sheave interlocking wire 142 on the side where the wire end 142a protrudes is attached to an attachment member 186b provided at the right end of the base 186.
[0055]
Next, the chaff sheave 33 and the Karamin shutters 141a and 141b connected to the interlocking mechanism 173 as the output side will be described.
The opening of the chief sheave 33 can be adjusted by a command from the interlocking mechanism 173. In this embodiment, the chaff sheave 33 and the interlocking mechanism 173 are mechanically connected by the chaff sheave interlocking wire 142.
The Karino shutters 141a and 141b are for changing the opening area of the introduction port 35a formed in the left side surface of the machine frame 35 to adjust the amount of outside air introduced into the Karino 26. In this embodiment, the Karino shutters 141a and 141b and the interlocking mechanism 173 are mechanically connected by a Karino shutter interlocking wire 148.
[0056]
A method for controlling the opening of the chaff sheave 33 and the opening of the Kara-Mino shutters 141a and 141b in the interlocking mechanism 173 having the above configuration will be described.
The opening setting body 189 is initially at a position that becomes “controller-side setting opening” based on a signal from the controller 165.
In a normal state (when there is no input of a signal from the waste amount detecting mechanism 172 to the interlocking mechanism 173), the opening degree operation arm 185 is urged clockwise in FIG. It is in the contact position.
For example, by operating the crop change switch 166 or the sorting adjustment dial 167, or by detecting that the amount of the material to be processed on the chaff sheave 33 has been changed by the sensor 51, the “controller-side set opening” determined by the controller 165 is determined. When it changes, the motor 183 is driven to rotate, and the opening degree setting body 189 turns around the turning shaft 191.
[0057]
Here, a case is considered where the opening degree setting body 189 rotates in a direction in which the “controller-side setting opening degree” increases.
In this embodiment, the motor 183 rotates the opening setting member 189 counterclockwise in FIG. Since the opening operation arm 185 is urged by the spring 190, the opening operation arm 185 is rotated counterclockwise to a position where it comes into contact with the stopper 184b together with the opening setting body 189. Then, the rod 192 is pushed down, the turning bracket 197 is turned counterclockwise about the turning shaft 199, and the chaff sheave interlocking wire 142 is sent out to the chaff sheave 33 side. The wire end 142b of the chaff sheave interlocking wire 142 is attached to the chaff sheave operation arm 180, and the chief sheave operation arm 180 is rotated by the urging force of the spring 176 as urging means, so that the opening of the chaff sheave 33 is increased.
On the other hand, even when the opening degree setting body 189 rotates, there is no signal input from the straw amount detection mechanism 172 to the interlocking mechanism 173 (the opening degree operation arm 185 rotates counterclockwise with respect to the opening degree setting body 189). ), The Karamino shutter interlocking wire 148 does not operate, so that the opening of the Karamino shutters 141a and 141b does not change. That is, since the outer wire and the inner wire move together, the Karamo shutter interlocking wire 148 does not operate.
[0058]
In this embodiment, the opening degree of the chaff sheave 33 is increased when the chaff sheave interlocking wire 142 is sent out to the chaff sheave 33 side. At the position where the rod 192 is pivotally attached to the rotating bracket 197, the configuration of the chief sheave operating arm 180 is changed so that the opening of the chief sheave 33 increases when the chief sheave interlocking wire 142 is drawn toward the interlock mechanism 173. Is also good.
In this embodiment, the wire outer end 148c of the Karino shutter interlocking wire 148 on the interlocking mechanism 173 side is attached to the opening setting member 189, and the opening setting member 189 is rotated by a signal from the controller 165. Although the opening degree of the Karamin shutters 141a and 141b does not change, for example, the left end of the base 186 in FIG. 12 is extended to the left, and a wire outer end 148c is attached to the extended part. When the opening setting member 189 is rotated by a signal from the controller 165, the opening of the Karino shutters 141a and 141b may be changed. In the case of such a configuration, the opening degree of the Karino shutters 141a and 141b can be adjusted by a signal from the controller 165.
[0059]
Next, consider the case where the amount of straw (grain stalk) conveyed to the rear of the machine by the straw chain 18 increases.
As shown in FIG. 11, when the amount of the straw (grain stalk) conveyed to the rear of the machine by the straw chain 18 increases, the wire end 147b of the straw amount detection wire 147 is drawn to the wire outer end 147d.
Therefore, as shown in FIG. 12, the opening operation arm 185 rotates counterclockwise with respect to the opening setting body 189 against the urging force of the spring 190, and the rod 192 moves the opening operation arm 185 to the stopper 184b. It is pushed down further below the contact position (that is, the position at which the “controller-side set opening” set by the controller 165), and the opening of the chaff sheave 33 becomes even larger than the “controller-side set opening”. .
When the opening operation arm 185 is rotated counterclockwise with respect to the opening setting body 189 against the urging force of the spring 190, the wire end 148a of the Karino shutter interlocking wire 148 on the interlocking mechanism 173 side becomes a wire outer. It is pulled out in the direction protruding from the end 148c, and the opening of the Karino shutters 141a and 141b increases.
[0060]
As described above, the interlocking mechanism 173 is positioned at the side portion of the machine frame 33 of the sorting unit 17 and in the vicinity of the chaff sheave operation arm 180 for adjusting the opening of the chief sheave 33 (in the present embodiment, the side portion of the machine frame 35 , A position between Karino 26 and the chaff sheave operating arm 180 in the front-rear direction), connected by a straw amount detection mechanism 172 and a single straw amount detection wire 147, and an interlocking mechanism 173, the chaff sheave 33, and an interlock. The mechanism 173 and the Karamin shutters 141a and 141b are connected by the chaff sheave interlocking wire 142 and the Karamin shutter interlocking wire 148, respectively. It is possible to shorten the total length and reduce the total weight of the components related to opening adjustment In addition, there is no portion where two or more wires arranged along the side surface of the sorting unit 17 overlap over a long length, and it is possible to prevent that straw waste or the like is caught on the wire or fine dust is deposited on the wire. It is possible to prevent.
Further, the interlocking mechanism 173 rotates the opening degree setting body 189 whose rotation angle is changed via the motor 183 by a signal from the controller 165 and the opening degree setting body 189 by the operation of the straw amount detection mechanism 172. Since the opening degree operation arm 185 that moves is provided, the operation of the interlocking mechanism 173 by the controller 165 and the operation of the interlocking mechanism 173 by the waste amount detecting mechanism 172 can be separately performed. It is possible to accurately adjust the opening degree of the shutter and the opening degrees of the Karino shutters 141a and 141b according to the use situation.
Further, the controller 165 is provided with information from operation means (a crop changeover switch 166, a selection adjustment dial 167) provided in the cab 14 and information from a sensor 51 for detecting an amount of a processing target on the chaff sheave 33. Since the rotation angle of the opening degree setting body 189 is set based on one or both of them, the operation of the interlocking mechanism 173 by the controller 165 can be accurately adjusted according to the use situation.
[0061]
Subsequently, the straw switching device 150 provided below the straw chain 18 will be described with reference to FIGS.
By changing the position where the straw conveyed by the straw chain 18 is dropped away from the straw chain 18, the straw switching device 150 shreds it with a straw cutter (not shown) and discharges it to the field. Or whether they are bound by a binding device and dropped on a field.
The straw switching device 150 mainly includes a chain guide 144, a detection rod 143, a spring 152, a rail body 153, a slide guide 154, slide rollers 155a and 155b, a rear support rod 156, a spring 157, and a slide guide operating device 158. Etc.
[0062]
The chain guide 144 is a round bar-shaped (cylindrical) member having a bent portion 144a whose one end (entrance side) is bent downward in a substantially U-shape. The bent portion 144a of the chain guide 144 is arranged toward the terminal end of the feed chain 9 so that the grain stalk can be easily transported between the straw chain 18 and the chain guide 144. Further, one end of a detection rod 143 is fixedly provided at the root of the bent portion 144a. The detection rod 143 is inserted through holes formed in mounting members 151a and 151b fixed to the body of the combine, and a chain guide 144 is urged by a spring 152 in a direction approaching the straw chain 18.
The lower end of the detection rod 143 is in contact with the detection plate 145a.
[0063]
The rail body 153 is a member having a substantially U-shape in cross section. The rail body 153 is fixed to the lower surface of the body portion of the chain guide 144 with its longitudinal direction being substantially parallel, and slidably accommodates the slide guide 154 from below.
[0064]
The sliding guide 154 is a substantially L-shaped round bar (cylindrical) member having one end bent. The bent portion 154a of the sliding guide 154 is accommodated in the rail body 153 so as to be in a direction approaching the bent portion 144a of the chain guide 144, does not fall off the rail body 153 by the sliding rollers 155a and 155b, and has a longitudinal direction. Slidably supported.
[0065]
The rear support rod 156 includes a pipe 156a and a slide rod 156b, and the slide rod 156b is slidably fitted to the pipe 156a. One end of the pipe 156a is rotatably connected to the rear portion of the rail body 153 (the one far from the bent portion 144a of the chain guide 144), and one end of a slide bar 156b projects from the other end. One end of 156b is pivotally connected to the combine body.
A spring 157 is interposed between the pipe 156a and the slide bar 156b, and is urged in a direction in which the entire length of the rear support bar 156 becomes longer.
[0066]
With the configuration described above, when the grain stalk is not being conveyed by the straw chain 18, the trunk portion of the chain guide 144 and the longitudinal direction (conveying direction) of the straw chain 18 are substantially parallel at a predetermined interval. Are supported by the springs 152 and 157 such that On the other hand, when the amount of grain culm conveyed by the straw chain 18 increases, the chain guide 144 is pushed downward against the urging force of the springs 152 and 157. At this time, since the rear support rod 156 is pivotally attached to the body of the combine and the rail body 153, the body of the chain guide 144 changes the body of the straw It is possible to take an angle that is not parallel to the longitudinal direction, and it is possible to reliably transport the grain stalk backward.
[0067]
Next, a method of sliding the slide guide 154 will be described. What slides the sliding guide 154 is a sliding guide operating device 158 provided below the rail body 153.
The sliding guide operating device 158 mainly includes an operating arm 130, a mounting member 131, a pin 132, a rotating arm 133, a rotating boss 134, a mounting member 135, a rotating arm 136, and the like.
[0068]
The operation arm 130 is an elongated plate-shaped member, and a locking hole 130a is formed at one end thereof. The shape of the locking hole 130a is a slightly long oval type, and the tip of the bent portion 154a of the sliding guide 154 is fitted. A long hole 130b is formed in the other end of the operating arm 130. Further, the pin 132 is fixed to a mounting member 131 fixed to the body of the combine through the long hole 130b, and the operating arm 130 can slide along the pin 132, but does not drop off from the mounting member 131. .
A distal end portion of a rotation arm 133 is pivotally connected to a middle portion of the operation arm 130 so as to be rotatable. The root portion of the rotating arm 133 is fixed to a rotating boss 134, and the rotating boss 134 is pivotally attached to a rotating shaft 135a of a mounting member 135 fixed to the body of the combine. Further, a root portion of the rotation arm 136 is fixed to the rotation boss 134, and one end of an operation wire 137 is attached to a tip end of the rotation arm 136. The other end of the operation wire 137 is attached to a switching lever (not shown) provided in the cab 14. A spring 138 is interposed between the middle part of the rotating arm 133 and the body of the combine. The spring 138 causes the rotation arm 133 and the rotation arm 136 to rotate clockwise about the rotation shaft 135 a in a plan view (FIG. 14), and the operation wire 137 is drawn to the slide guide operating device 158 side. It is biased in the direction to make it.
[0069]
When a switching lever (not shown) provided in the cab 14 is operated to the cutting side, the operation wire 137 is pulled toward the cab 14, and the turning arm 136 and the turning arm 133 center around the turning shaft 135 a. It rotates counterclockwise in plan view (FIG. 14). At this time, the operating arm 130 rotates clockwise about the pin 132 substantially in a plan view (FIG. 14), but since the operating arm 130 and the pin 132 are pivotally connected via the elongated hole 130b, the rotation is performed. The trajectory of the tip of the operating arm 130 (the end on which the locking hole 130 is formed) when moving is substantially straight in plan view. The trajectory of the tip of the operating arm 130 substantially coincides with the longitudinal direction of the slide guide 154.
Therefore, the sliding guide 154 in which the bent portion 154a is fitted into the locking hole 130a is located at a position protruding from the rear of the rail body 153 along the rail body 153 (when the grain culm is dropped or directly dropped into the field after binding). From the position) to the position stored in the rail body 153 (the position at which the cereal stalk is shredded by a straw cutter).
[0070]
With the above-described configuration, the position at which the sliding guide 154 is dropped or directly dropped onto the field after binding the cereal culm by a manual operation without using an actuator such as a motor, and the cereal culm is narrowed with a straw cutter. It is possible to smoothly slide between the cutting position and the position, and the reliability of the device is improved. Further, only one operation wire 137 transmits the operation on the driver's cab 14 side, and the adjustment of the operation amount is easy.
[0071]
Next, a method of attaching the auger rotating motor will be described with reference to FIG.
The motor mounting member 121 is fixed to the vertical auger support member 122 in advance by a method such as welding. The vertical auger support member 122 is externally fitted and fixed to the lower auger pipe 123 constituting the lower half of the casing of the vertical auger 15a by welding or the like. The vertical auger support member 122 is fixed to the body of the combine with bolts or the like, and supports the lower auger pipe 123 of the vertical auger 15a in a substantially upright posture. An auger rotation motor is fixed to the motor mounting member 121, and a pinion gear is externally fitted to a drive shaft of the auger rotation motor. An upper auger pipe (not shown) constituting the upper half of the casing of the vertical auger 15a is loosely fitted and supported on the upper end of the lower auger pipe so as to be pivotable. A gear is formed on the outer peripheral surface of the upper auger pipe, and meshes with a pinion gear of the auger rotating motor.
With the above configuration, when the auger rotating motor is driven to rotate, the upper auger pipe turns with respect to the lower auger pipe 123. Therefore, the discharge auger 15 pivotally attached to the upper auger pipe also turns.
At this time, since the motor mounting member 121 is welded and fixed to the vertical auger support member 122 in advance, the distance between the rotation shaft of the gear formed on the upper auger pipe side and the pinion gear on the auger rotation motor side is substantially equal. It becomes constant, and it is possible to prevent malfunctions due to assembly errors.
[0072]
Next, the adjustment of the gap between the receiving net 20 and the handling teeth 21a will be described with reference to FIG.
The gap between the receiving net 20 and the teeth 21a has a great effect on threshing performance, and the dimensional accuracy of the receiving net 20 around the casing is important. However, in practice, there is some variation due to the dimensional accuracy of the parts, so it is preferable that the gap between the receiving net 20 and the handling teeth 21a after assembly can be easily adjusted.
In the present embodiment, the support portion of the receiving net 20 on the feed chain 9 side is constituted by a bolt 124 capable of adjusting the amount of protrusion from the machine frame 35 toward the receiving network 20, and the amount of protrusion of the bolt 124 is adjusted after assembly. By doing so, it is possible to adjust the gap between the receiving net 20 and the handling teeth 21a by an inexpensive and simple method.
[0073]
【The invention's effect】
The present invention is configured as described above, and has the following effects.
[0074]
That is, as shown in claim 1, in a combine that adjusts the opening of the chaff sheave provided in the swing sorting device according to the threshing processing amount,
An interlocking mechanism that interlocks the shutter, the waste amount detection mechanism, and the actuator that is provided at the chaff sheave and Karin suction port is provided on the side of the selection unit and near the chaff sheave opening change mechanism, and the interlocking mechanism and the waste amount detection mechanism , The interlocking mechanism and the chaff sheave, and the interlocking mechanism and the Karino shutter are each connected by a single wire to transmit the amount of operation, so that the opening of the chaff sheave and the Karino shutter can be adjusted. It is possible to shorten the total length of the wire and reduce the total weight of the components related to the opening adjustment. In addition, there is no part where two or more wires arranged along the side of the sorting part overlap over a long length, and it is possible to prevent straw chips etc. from being caught on the wire or fine dust accumulating on the wire. It is possible to do.
[0075]
According to a second aspect of the present invention, the interlocking mechanism includes an opening degree setting body whose rotation angle is changed via an actuator according to a signal from a controller, and a straw amount driven by the operation of the straw amount detection mechanism. With the body, the operation of the interlock mechanism by the controller and the operation of the interlock mechanism by the waste amount detection mechanism can be performed separately, and the opening of the chaff sheave and the opening of the Karamin shutter can be adjusted. Can be performed with high accuracy according to the use situation.
[0076]
According to a third aspect of the present invention, the controller sets the opening based on one or both of information from an operating means provided in a cab and information from a sensor for detecting an amount of the workpiece on the chaff sheave. Since the rotation angle of the body is set, the operation of the interlock mechanism by the controller can be accurately adjusted according to the use situation.
[Brief description of the drawings]
FIG. 1 is a left side view of a combine according to an embodiment of the present invention.
FIG. 2 is a plan view of a combine according to an embodiment of the present invention.
FIG. 3 is a right side view of the combine according to the embodiment of the present invention.
FIG. 4 is a front view of a combine according to an embodiment of the present invention.
FIG. 5 is a schematic left side view of a threshing unit and a sorting unit.
FIG. 6 is a rear cross-sectional view of the threshing unit and the sorting unit.
FIG. 7 is a schematic diagram showing a sensor.
FIG. 8 is a rear cross-sectional view of the threshing unit and the sorting unit.
FIG. 9 is a schematic view showing a sensor.
FIG. 10 is a block diagram relating to an opening adjustment mechanism of a chaff sheave and a Karamin shutter;
FIG. 11 is a schematic view showing an opening adjustment mechanism of a chaff sheave and a Karamin shutter;
FIG. 12 is a diagram showing an interlocking mechanism.
FIG. 13 is a side view showing the waste switching device.
14 is a plan view showing the straw switching device viewed from the direction of arrow E. FIG.
FIG. 15 is a side view showing the straw switching device viewed from the direction of arrow D.
FIG. 16 is a sectional plan view showing a motor mounting member.
[Explanation of symbols]
14 cab
17 Sorting Department
27 Swing sorting device
33 Chaff Sheave
51 sensors
141a ・ 141b Karamin Shutter
142 chaff sheave interlocking wire
147 Waste wire detection wire
148 Karamin shutter interlocking wire
165 controller
166 Harvest switch (operation means)
167 Sorting adjustment dial (operation means)
170 Chaff sheave opening change mechanism
172 Waste straw amount detection mechanism
173 Linkage mechanism
183 motor
185 Opening operation arm
189 Opening setting body
201 Combine

Claims (3)

In the combine that adjusts the opening of the chaff sheave provided in the swing sorting device according to the threshing processing amount,
An interlocking mechanism that interlocks and connects the shutter, waste amount detection mechanism, and actuator provided at the chaff sheave and Karino suction port is provided on the side of the selection unit and near the chaff sheave opening change mechanism, and the interlocking mechanism and the waste amount detection mechanism are provided. And a link between the interlocking mechanism and the chaff sheave, and between the interlocking mechanism and the Karaoke shutter, each of which is connected by a single wire to transmit an operation amount. The interlocking mechanism includes an opening degree setting body whose rotation angle is changed via an actuator by a signal from a controller, and a straw amount follower that is rotated by the operation of the straw amount detection mechanism. The combine according to claim 1, wherein The controller sets a rotation angle of the opening degree setting body based on one or both of information from an operation unit provided in a cab and information from a sensor for detecting an amount of an object to be processed on a chaff sheave. The combine according to claim 2, wherein:

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