JP2889484B2 - Combine stalk culm conveying device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combined stalk and culm conveying device for feeding all culms of short-short culms into a handling room.

[0002]

2. Description of the Related Art In general,
In this type of combine, when the stem culm at the ridge is to be cut in the airframe posture facing the ridge, due to the structure of the pre-processing unit (the structure in which the divider protrudes in front of the cutting blade), as shown in FIG. Because it is in a mown state, there is an inconvenience that short culms that have been cut high are handled shallowly in the threshing part and unhandled parts occur.
For this reason, conventionally, corners of a field with high cutting were manually cut in advance. However, since the manual cutting is heavy work, workability and work efficiency have become problems. Therefore, all the stems and stems to be transferred from the pretreatment transport device to the threshing transport device (threshing feed chain) are thrown into the handling room without being transferred to the threshing transport device and threshed by a so-called threshear method. It has been proposed that the mowing can be performed at a high cutting speed, and that the mowing is performed by a procedure shown in FIG. 9 (hatching is a high mowing portion), thereby eliminating the need for hand-cutting. As means for not transferring stems and stems, as described in Japanese Utility Model Laid-Open No. 4-124035, a method for switching the stem-and-clamping interval of the threshing transport device to an interval that does not sandwich stem-culms, and threshing as in Japanese Utility Model Laid-Open No. 5-31536 There is known a device in which a starting end of a transport device is rotated to a position where the stem is not pinched. However, in the above-described apparatus, it is necessary to configure a switching mechanism for switching to the non-repeatable state, and it is necessary to additionally provide an actuator for switching the mechanism, so that the structure may be complicated. However, there is a disadvantage that the number of parts increases and the cost increases.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and has been devised with the object of providing a combined stem and stem conveying device which can eliminate these disadvantages. A pre-processing conveyance device that conveys the harvested stems stalks squeezed from a plurality of raking paths arranged in a row while consolidating the stems and stalks conveyed to the end of the pre-processing conveyance device toward a threshing unit. A transporting device and a threshing transporting device for nipping and transporting the stems and stems transported to the terminal end of the intermediate transporting device along the handling chamber are provided, and the intermediate transporting device is rotatable around the transporting end side as a fulcrum. In the combine, wherein the handling depth is adjusted based on a change in the stem and stalk nipping position of the threshing transport device accompanying the rotation, the intermediate transport device exceeds the deep handling side limit position during normal operation, and Stem culm for threshing conveyor The intermediate transfer device is configured to be rotatable to a position at which no transfer is performed, and in the rotary position, when the stems and culms conveyed to the end portion of the intermediate transfer device are all introduced into the handling chamber, the intermediate transfer device rotated to the all culm input position Separates the beginning and end of the pretreatment transport device in the stem and stem transport direction to avoid interference between transport devices and assists in the transfer of stems and stems from the pretreatment transport device to the intermediate transport device. The auxiliary transfer device to be provided is juxtaposed below the end of the pre-processing transfer device, and the transfer start end of the auxiliary transfer device is positioned near the confluence of the stem and culm of the pre-treatment transfer device. It is. In addition, according to the present invention, it is possible to prevent as much as possible the disturbance of the stem of the transport stem in the transfer portion between the pretreatment transport device and the auxiliary transport device.

[0004]

Next, an embodiment of the present invention will be described with reference to the drawings. In the drawing, reference numeral 1 denotes a traveling body of a combine, which includes a pre-processing unit 2 for cutting stem culms, a threshing unit 3 for threshing grains from the culled stems, and a threshing grain. A sorting section 4 for sorting, a post-processing section 5 for discharging threshed culms, an operating section 6 in which various operating tools are disposed, a crawler-type running section 7, and the like are provided. All are the same as before.

[0005] The pre-processing unit 2 includes a divider 8 for weeding the stems and stems into several cuts, a raising device 9 for raising the stems and stems, a cutting blade 10 for cutting the stem of the stems and stems. A star wheel 11 for scraping the stem of the stem at a position above the cutting blade 10, a scraping device 12 for scraping an intermediate portion of the stem at a position above the star foil 11, scraped from each of the scraping paths. A pair of left and right stock transporters (pretreatment transporters) 13 and 13a for joining stems at the transport end portion, and a tip transporter 14, and the threshing unit 3 while transforming the combined vertical stems and stems into a horizontal posture. The pre-processing unit 2 includes an intermediate conveying device 16 and the like that conveys toward the threshing conveying device 15.
Since the stalk is connected to the front end of the body to move up and down with the expansion and contraction of the stem, the cutting height of the stem can be freely adjusted based on the operation of the lift cylinder 17.

[0006] The intermediate transport device 16 is composed of a unit feed chain 18 for nipping and transporting the stem side of the stem and stem, and a tip carrier 19 for feeding and transporting the tip side of the stem and stem. However, the unitized intermediate transfer device 16 is supported rotatably up and down with the transfer end side as a fulcrum, and is forcibly rotated based on the driving of the handling depth motor 20. It has become. That is, when the intermediate transport device 16 clamps the stem / culm transported to the terminal end of the stock transport device 13, the clamping position is:
Since it is possible to move up and down based on the vertical rotation about the transport end side, the threshing section 3 of the threshing transport device 15 that inherits the stem and culm at the end of the intermediate transport device 16 is changed. It is possible to adjust the handling depth in.

In adjusting the handling depth, the distance L1 between the stem position of the stem and the stem-clamping position of the stem feed chain 18 is determined by the end of the stem and the starting end of the threshing transport device 15. The intermediate transport device 16 is rotated up and down in a range that is larger than the interval L2 with the throat, that is, in a range in which the threshing transport device 15 can inherit the stems and stems. It is configured to descend to a position exceeding the deep handling side limit of the depth adjustment range, and to be able to clamp the stem side of the stem / culm further than at the time of adjusting the handling depth. That is, at this rotation position, the interval L1 is smaller than the interval L2,
The stems and culms that have been transported to the terminal end of the threshing unit 3 can be introduced into the handling room 21 of the threshing unit 3 without being transferred to the threshing transport device 15.

In order to rotate the intermediate transfer device 16 to the position where all the culms are to be put in, the feeder chain 1
In order to avoid the start end of the stock 8 from interfering with the end of the stock feeder 13, the end of the stock feeder 13 and the start of the stock feed chain 18 are separated by a predetermined distance L3 in the stem and stem transfer direction. However, at the position below the end of the stock carrier 13 (in this embodiment, the height is set within a range L4 higher than the cutting blade 10 and lower than the star wheel 11), the stock carrier 13 and the stock Since the feed chain 18 is connected to the feed chain 18 in a substantially straight line in a plan view, and the stock feeder 13 and the auxiliary feed chain 22 which overlaps with the stem feed range of the stock feed chain 18 are provided side by side. Even if 13 and stock feed chain 18 are separated from each other in the stem and stem transfer direction, it is possible to reliably carry out the transfer between the stock feeder 13 and the stock feed chain 18.

By the way, the auxiliary feed chain 22
Is suspended and supported by a pair of front and rear sprockets 23. The starting end side sprocket 23 is
3 is disposed in the vicinity of the end side sprocket 24 which supports the terminal end of the auxiliary feed chain 3 in a superimposed manner, so that the starting end of the auxiliary feed chain 22 is provided at the transfer end of the stock feeder 13 where the stalks and stems merge. Is located. That is, at this position, the confluence of the stems stalked from each of the raking paths and the transfer of the confluent stems to the auxiliary feed chain 22 are performed substantially simultaneously. In this embodiment, both sprockets 23 arranged in a polymerized state as described above,
24 are integrally linked via a transmission shaft 25, so that both devices 13 and 22 are driven based on one of the driving forces (the driving force on the stock transfer device 13 side or the auxiliary feed chain 22 side). You can get it.

On the other hand, reference numeral 26 denotes a head-side conveyor provided at a transfer portion between the intermediate transfer device 16 and the threshing / conveying device 15, and the head-side conveyor 26 includes a pair of front and rear rollers 2
7, a wide belt body 28 is suspended in the left-right direction (culm length direction). The start end of the tip side conveyor 26 is located near the rear of the intermediate transport device 16 and the end of the stock feed chain 18. While the end portion is located slightly higher than the lower end of the handling chamber inlet 21a near the front end face of the handling chamber 21, and as a whole, the transport surface is lower than the front height. It is arranged so that it may be inclined. When the intermediate conveying device 16 is rotated to the entire culm loading position as described above, the spike-side conveyor 26 arranged in this manner moves the spike-side of the stem / culm conveyed to the end of the intermediate conveying device 16. It is received from below, and the tip side of the received stem is forcibly thrown into the handling chamber 21 by the conveying action of the belt body 28.

Reference numeral 29 denotes a stock side conveyor arranged side by side on the outside of the tip side conveyor 26. The stock side conveyor 29 is constituted by a belt body 31 suspended around a pair of front and rear rollers 30. ing. When the intermediate conveying device 16 is rotated to the position where all the culms are put, the stem side of the stem culm conveyed to the end portion of the intermediate conveying device 16 is received from below, and the stem of the received stem culm is received. Belt body 3 on the original side
1 is forcibly charged into the handling chamber 21 by the transfer operation of 1.
The starting end of the stock side conveyor 29 is arranged in a horizontal posture at a position lower than the starting end of the tip side conveyor 26, while the end part is at a position higher than the end end of the tip side conveyor 26, and has an arc shape. The threshing transport device 15 is disposed in an inclined position (inclined so that the tip side is lowered) along the handling room entrance 21a, and further, as a whole, crosses the tip side conveyor 26 in a side view and is inclined forward and rearward and high. Are arranged along the starting end of

Reference numerals 32 and 33 denote the respective conveyors 26 and
The support shafts 32 and 33 are connected to each other via a universal joint 34, and are further supported by a support shaft 33 on the stocker side conveyor 29 side.
Is connected via a universal joint 37 to a support shaft 36 that supports the start end side sprocket 35 of the threshing transport device 15,
For this reason, each of the conveyors 26 and 29 is always the threshing transport device 1
5 to drive or stop.

On the other hand, the threshing unit 3 includes a threshing transport device 15
Feed chain 38 and pinching rail 3 constituting
9, the handling cylinder 40 provided in the handling room 21, the receiving net 41 for leaking the material handled by the handling cylinder 40, and the handling that reaches the end of the handling room without being filtered from the receiving net 41. The processing cylinder 42 for processing the material again, the second receiving net 43 for leaking the material handled by the processing cylinder 42, and the like.
A plurality of movable partition plates 44 are juxtaposed at predetermined intervals in the front-rear direction. Each movable partition plate 44 is freely rotatable and deformable between a backward-tilted posture for stagnating the flow of the stem culm, a forward-tilted posture for promoting the flow of the stem culm, and a neutral posture located between the two postures. However, each movable partition plate 44 is
5, and are forcibly transformed based on the driving of the partition plate motor 46.

The sorting section 4 includes a swinging sorter 47 for swinging and sorting the materials to be handled, a sorting fan 48 for generating a sorting wind, a dust discharging fan 49 for discharging foreign matters, and a first thing. First collecting unit 50 for collecting the second, second collecting unit 5 for collecting the second
1 and the like, but at the starting end (corrugated rocking transfer plate) of the first rocking sorter 52 forming the upper stage of the rocking sorter 47 from the receiving net 41 A float sensor 53 is provided which moves up and down in accordance with the increase or decrease of the leaked material. The float sensor 53 is vertically swingably supported on the machine frame 1a side and is connected to a potentiometer 54 for detecting the swing position. Since the detection value of the float potentiometer 54 fluctuates periodically in accordance with the swing cycle of the swing sorting body 47, it is obtained by picking up the peak value voltage without using the raw value as it is. The conversion signal is used.

Further, reference numeral 55 denotes a sorting fin arranged side by side at a predetermined interval on the end side of the first swing sorting portion 52, and the sorting fin 55 filters the unsorted material by filtration. Each sorting fin 55 is provided rotatably so as to change the fin opening degree.
Since the fin motor 56 is linked to the fin motor 56, the fin opening can be freely adjusted based on the drive of the fin motor 56.

Further, reference numeral 57 denotes a second swing sorting section which constitutes the lower stage of the swing sorting body 47. The second swing sorting section 57 is filtered and sorted by the first swing sorting section 52. In order to further filter and sort the kernels, it is arranged below the sorting fin 55 and above the first grain collecting section 50, which forms the sorting start end side. A corrugated rocking transfer plate 58, a crimp net 59 forming the sorting end side,
The crimping net 59 is constituted by a slidable closing plate 60 or the like for adjusting the closing amount (filtering area). Since the closing plate 60 is linked to the closing motor 61, the closing amount can be freely adjusted based on the driving of the closing motor 61.

The operation unit 6 has a front operation panel 62 located in front of the driver's seat 6a and a side operation panel 63 located in the side of the driver's seat 6a. Reference numeral 62 denotes a pre-processing elevating lever 64 for raising and lowering the pre-processing unit 2, a partition setting switch 65 for setting the position of the movable partition 44, and a handling depth automatic switch for performing ON-OFF operation of handling depth control described later. 66, while operating tools such as an automatic switch 67 for turning on / off the whole culm input control to be described later are provided on the side operation panel 63, a shift lever 68 for shifting the continuously variable transmission (not shown) is provided on the side operation panel 63. A cutting clutch lever 69 for intermittently operating the cutting power (power of the pre-processing unit 2) and a working machine clutch lever 70 for intermittently operating the working machine power (the power of the threshing unit 3, the sorting unit 4, etc.) are provided. It is.

Further, 71 is a microcomputer (C
PU, ROM, RAM, etc.), and the control unit 71 includes the float potentiometer 54, the partition plate setting switch 65, the automatic handling depth switch 66, and the whole culm. In addition to the automatic switch 67,
A pre-processing potentiometer 72 for detecting the elevation position of the pre-processing unit 2; a handling stroke sensor 73 for detecting the rotational position of the intermediate conveyance device 16; Handling switch 74, which detects the presence of a culm in the intermediate conveying device 16, a main sensor 75 which detects the presence or absence of a culm in the conveying device, and a depth sensor for detecting the treating depth in the intermediate conveying device 16 (a tip sensor having a predetermined interval in the culm length direction) 76 and stock sensor 77), a partition potentiometer 78 for detecting the posture of the movable partition 44,
A fin potentiometer 79 for detecting the degree of opening of the selection fin 55, a closing potentiometer 80 for detecting the amount of closing of the closing plate 60, a pre-processing elevation switch 81 for detecting an elevation operation of the pre-processing elevation lever 64, and A cutting clutch for detecting a connection operation of the preprocessing lowering switch 82, a lever potentiometer 83 for detecting the operating position of the shift lever 68, a cylinder potentiometer 84 for detecting the working cylinder length of the continuously variable transmission, and a cutting clutch lever 69. Signals are input from a work implement clutch switch 86 or the like for detecting the connection operation of the switch 85 and the work implement clutch lever 70. On the basis of these input signals, based on these input signals, the handling depth motor 20, partition motor 46, fine motor 56 , Closing motor 61, solenoid valve for raising and lowering the pretreatment lift cylinder 17 7a, 87b, increasing speed and deceleration solenoid valve 88a of the continuously variable transmission, and summer to output an operation signal to 88b, and the like. That is, the control unit 71 controls the vertical rotation position of the intermediate conveyance device 16 based on the detection of the tip sensor 76 and the stock sensor 77,
Full culm input control for controlling the rotation position of the intermediate conveying device 16 so that all the short culms that have been highly harvested are input to the handling room 21, and a partition plate 44.
Control procedures such as a partition plate control for controlling the attitude of the vehicle, an automatic sorting control for controlling the fin opening F and the closing amount M, and a continuously variable transmission control for controlling the continuously variable transmission. The control will be described sequentially.

In the above-mentioned handling depth control, first, ON-OFF of the whole culm input automatic switch 67 is determined.
If N, the entire culm input control is executed as a subroutine, while if it is determined to be OFF, the entire culm input flag is set to "0", and then the handling depth automatic switch 66 is turned ON. Although the determination of -OFF is made, even if the all-culm input control is executed, if the all-culm input flag is "0", ON-OFF of the handling depth automatic switch 66 is determined. Here, if the determination is OFF, the handling depth operation of the intermediate conveyance device 16 (the handling depth motor 20
Is stopped and the process returns to the main routine.
In the case of N, it is further determined whether the cutting clutch switch 85 and the main sensor 75 are ON or OFF. Only when both the determinations are ON, the subsequent handling depth adjustment routine is executed. When it is OFF, the operation of the handling depth is stopped and the process returns to the main routine. Then, in the handling depth adjustment routine, it is determined whether the stock sensor 77 and the tip sensor 76 are ON or OFF. If both the sensors 76 and 77 are ON, it is determined that the handling is in the deep handling state. The conveying device 16 is intermittently operated on the shallow handling side (upward) (the handling depth motor 20 is operated at a low speed based on the inching signal), while both sensors 76 and 77 are in the O state.
In the case of FF, it is determined that it is in the shallow handling state, and the intermediate transfer device 16 is intermittently operated on the deep handling side (downward).
Stock sensor 77 is ON and tip sensor 76 is OFF
In the case of, the handling depth of the intermediate conveyance device 16 is stopped by determining that the handling depth is appropriate.
That is, the position of the tip of the transport stem in the intermediate transport device 16 is positioned between the two sensors 76 and 77 to adjust the handling depth to a constant value. In the case of reaching the limit position on the deep handling side of the range, the handling depth operation is stopped based on the detection of the deep handling limit switch 74, while the intermediate transfer device 16 is moved to the shallow handling side limit of the handling depth adjustment range. When reaching the position, the handling depth operation is stopped based on the detection of the handling depth stroke sensor 73.

On the other hand, the O
In the whole culm insertion control executed at the time of N, first, the set value of the all culm insertion flag (0 = handling depth adjustment operation state, 1 = all culm insertion operation state, 2 = handling depth automatic return state) is determined. When the set value is "0", the ON determination of the cutting clutch switch 85, the forward traveling determination based on the cylinder potentiometer 84, and the ON determination of the pre-processing ascending switch 81 are continuously performed. Are ON or YES, it is further determined whether or not the pre-processing unit 2 has risen to the predetermined height H. In other words, the pre-processing unit 2 has a predetermined height H during forward reaping travel.
When the ascent operation has been performed, it is determined that the turtle is in a high-cutting state, and “1”, which means an all-culm insertion operation command, is automatically set in the all-culm insertion flag. (The rotational position of the intermediate conveyance device 16) is stored in a predetermined storage area A.

In a state where "1" is set in the all-culm input flag, the intermediate conveying device 16 is continuously operated on the deep handling side (downward) until the deep handling limit switch 74 is turned on (based on the continuous signal). The operating depth motor 20 is operated at a high speed), and the operating depth stroke value when the deep operating limit switch 74 is switched from OFF to ON is stored in a predetermined storage area B. The intermediate conveying device 16 is continuously operated to the deep handling side until the stored value B changes to the deep handling side by a predetermined amount D. In this state, the distance L1 is equal to the distance L2.
Therefore, the stems and culms transported to the end of the intermediate transport device 16 are all transferred into the handling room 21 of the threshing unit 3 without being transferred to the threshing transport device 15.

Further, in the state where all the culms are put in, the switching of the main sensor 75 to OFF is always determined. When the main sensor 75 is turned off, it is determined that high mowing has been completed, and the entire culm input flag is set to “2”. However, when the total culm input flag is set to “2”, , The handling depth stroke value is the stored value A
, The intermediate transfer device 16 is continuously operated to the shallow side, and thereafter, the whole culm input flag is set to "0" to end the all culm input control. That is, when the end of the high mowing is determined based on the OFF of the main sensor 75, the intermediate transport device 16 is automatically returned to the position at the start of the high mowing.

In the control of the partition plate, first, the ON / OFF of the work machine clutch switch 70 is determined, and the
If it is F, the process returns to the main routine, while if it is determined to be ON, the set value of the all culm input flag is further determined. When the set value is "0", the movable partition plate 44 is moved to the set position (open, closed, standard) of the partition setting switch 65, but the set value of the all culm input flag is "0". Otherwise, it is determined that all culms are in the loaded state, and the movable partition plate 44 is automatically moved to the open position (promotion position) regardless of the setting position of the partition plate setting switch 65. .

In the automatic sorting control, first, the ON / OFF state of the work machine clutch switch 70 is determined.
If it is FF, the process returns to the main routine as it is, while if it is determined that it is ON, the set value of the all-culm input flag is further determined. If the set value is "0", the control position F (F1, F2, F3) of the sorting fin 55 and the control position M (M1, M2, M3) of the blocking plate 60 are determined based on the float sensor value. Is determined, and the selection fin 55 and the blocking plate 60 are operated to the control positions F and M based on the comparison between the determined control positions F and M and the potential values X and Y. That is, the first swing sorting unit 52 and the second swing sorting unit 57 are used to make the sorting processing capacity correspond to the increase and decrease of the handled objects.
The filtration area is controlled stepwise. If the set value of all culm input flags is other than "0", the control positions F and M are set to F0 and M0 (regular control range) regardless of the float sensor value. (Closed side position) and the sorting fin 55
And the closing plate 60 is automatically operated to the closing side. In addition, in this example, even if all the culms are put in, when the float sensor value exceeds the predetermined value D1,
In order to avoid a large difference between the amount of material to be handled and the sorting capacity, control positions F,
M is determined.

In the continuously variable transmission control, the raw value D of the lever potentiometer 83 is converted based on a predetermined function, and the converted value V matches the cylinder potential value VP of the continuously variable transmission. When the set value of the all culm insertion flag is "1", the continuously variable transmission is driven at a low speed to the conversion value V regardless of the lever potential value. The control value VL is set to automatically reduce the traveling speed.
In the present embodiment, the conversion value V
Is smaller than the low speed traveling control value VL, the traveling speed is maintained without decelerating the traveling speed.

In the embodiment of the present invention constructed as described above, all the culms are thrown into the handling room 21 without being transferred to the threshing transport device 15 for threshing by the so-called threshear method, without transferring the highly cut short culm to the threshing transport device 15. The height of the ridge can be cut high without causing grain loss due to shallow handling, and the hand cutting work can be omitted. However, the entire culm is rotatable to adjust the handling depth. The intermediate transfer device 16 is rotated by controlling the intermediate transfer device 16 to a position beyond the limit position on the deep handling side during normal operation and not to transfer stems and stems to the threshing transfer device 15. In addition, it is not necessary to provide a mechanism for switching the threshing / conveying device 15 between the continuous state and the non-continuous state, or to additionally provide an actuator for operating the mechanism. Therefore, the structure can be significantly simplified, or the number of parts can be greatly reduced. As a result, a combine that eliminates the need for hand-cutting can be configured at extremely low cost.

In order to rotate the intermediate transfer device 16 to the position where all the culms are to be put in, the feeder chain 1
In order to avoid the start end of the stock 8 from interfering with the end of the stock feeder 13, the end of the stock feeder 13 and the start of the stock feed chain 18 are separated by a predetermined distance L3 in the stem and stem transfer direction. However, the auxiliary feed chain 22 that overlaps the stem and culm transfer range of the stock feeder 13 and the feed chain 18 at the lower end of the stock feeder 13 is provided side by side, so that the stock feeder 13 and the feed chain 18 Can be reliably performed without causing a transport failure such as a disturbed transport posture of the stem / culm or a drop of the stem / culm.

Further, in the transfer section between the above-mentioned transfer devices, there is a possibility that the conveying posture of the stem / culm is disturbed, and the conveying posture tends to be more disordered as the conveying amount of the stem / culm is smaller. Since the starting end of the auxiliary feed chain 22 is located at the confluence of the stock transfer device 13, it is possible to reduce the chance that the confusion of the stem and culm is performed at substantially the same position and disturbance in the transfer posture occurs, By transporting the combined stems and stems, the transport amount can be ensured as much as possible, and as a result, disorder of the transporting posture can be reduced and ordered stem and stem transport can be performed.

The auxiliary feed chain 22 connects the stock feeder 13 and the feed feed chain 18 in a substantially straight line in a plan view, and overlaps the stem feed range of the stock feeder 13 and the feed chain 18. Because it is arranged so as to be able to reliably transfer the stems and stems conveyed to the terminal end of the stock transfer device 13 to the stock feed chain 18 without falling off or disturbing the transfer posture, Inconveniences such as the chain being carried around by the stem and the stem to be wound around the sprocket can be reliably prevented.

The height of the auxiliary feed chain 22 is set within a range L4 higher than the cutting blade 10 and lower than the star wheel 11, so that the intermediate conveying device 16 can be set as low as possible. It is possible to rotate to the position, and as a result, the difference between the interval L1 and the interval L2 at the time of inserting all culms can be as large as possible, so that all culms can be input reliably.

Since the starting sprocket 23 of the auxiliary feed chain 22 and the terminating sprocket 24 of the stock feeder 13 are integrally and interlocked via a transmission shaft 25, either one of them is driven. The two devices 13 and 22 can be driven based on the force, so that the power transmission mechanism is not allowed to be greatly simplified, and it is also possible to contribute to the weight reduction of the body.

The intermediate transfer device 16 and the threshing transfer device 1
5 is provided with a spike-side conveyor 26 for receiving the spike side of the stem that is not transferred to the threshing transfer device 15 from below and forcibly feeding the sprue into the handling chamber 21. Stem culms that are not sent can be reliably introduced into the handling room 21 as a whole, and as a result, grain loss accompanying falling off of the stem culm can be reliably avoided.

Further, since the tip side conveyor 26 is constituted by the belt body 28, the stem can be reliably transported to the entrance 21a of the handling room 21. As a result, the handling room entrance 2
The stagnation and clogging of the stem in 1a can be reliably prevented.

Also, since the belt body 28 is formed to be wide in the culm length direction, it is possible to prevent excessive force from acting on the stalk culm and prevent shedding during transportation.
Even if provisional threshing occurs, it is transported together with the stem and
, So that grain loss can be significantly reduced.

Further, since the wide belt body 28 is not likely to involve the stem and culm, the work efficiency is not reduced by the interruption of the work associated with the stem and stalk involvement. Thus, the inconvenience of the member being damaged or deformed can be surely eliminated.

The spike-side conveyor 26 is arranged so that the conveying surface is inclined in a forward-backward-to-posterior-lower manner. Without being allowed to do so, it is possible to receive the grains blown out of the handling room 21 and return them to the handling room 21. As a result, the grain loss can be significantly reduced.

The start end of the tip side conveyor 26 is located at substantially the same height as the end of the stock feed chain 18 near the rear of the intermediate conveying device 16, while the end is located at the front end of the handling chamber 21. Near the surface, the handling room entrance 21
Because it is arranged to be located slightly higher than the lower end of a,
It is possible to reduce the drop with the intermediate transfer device 16 and to reduce the disturbance of the stem and stem posture as much as possible, or it is possible to reliably prevent the stem and stem from stagnation and clogging at the handling room entrance 21a.

Further, since the stock side conveyor 29 for conveying the stem side of the stem and culm is arranged outside the ear side conveyor 26, the stem and culm which is not transferred to the threshing conveyor 15 can be handled more reliably. All culms can be introduced into the chamber 21.

Further, the starting end position of the stock side conveyor 29 is set at a position lower than the starting end position of the spike side conveyor 26, so that the stems and culms conveyed to the end of the intermediate conveying device 16 are inclined. It can be inherited as it is.
Therefore, it is possible to avoid a large change in the stem and culm posture, and as a result, the stem and culm that is not transferred to the threshing transport device 15 can be smoothly introduced into the handling room 21. The falling off and clogging of stems and stems due to turbulence can be reliably eliminated.

Further, since the stock side conveyor 29 is disposed so as to intersect with the tip side conveyor 26 in a side view, the stems and stems inherited from the intermediate conveying device 16 are transferred to the entrance 21 a of the handling room 21. You can smoothly change to a posture along.

Since the stock conveyor 29 is disposed along the threshing transport device 15, the intermediate transport device 16
Can be carried out in a posture similar to that in the case of nipping and transporting by the threshing transport device 15, and thus the stem can be transferred from the threshing transport device 15 to the handling room 21. Although the entire culm is introduced into the handling room without being transferred to the culm, it is possible to carry out the smooth culm transfer without any inconvenience as compared with the normal operation.

The end of the stock side conveyor 29 is inclined so as to follow the shape of the entrance of the handling room 21, so that the stems and stems do not get caught in the entrance 21a of the handling room, and the handling room 21 can be handled very smoothly. As a result, stagnation and clogging of the stem at the handling room entrance 21a can be reliably prevented.

Since both conveyors 26 and 29 are linked to the threshing transport device 15, a so-called automatic stop function (a function for automatically stopping the threshing transport device 15 when the pretreatment unit 2 is raised to a predetermined height or higher). In this case, the inconvenience of disturbing the stem and stem posture by operating both conveyors 26 and 29 even though the threshing transport device 15 is stopped can be reliably eliminated.

The operation of loading the whole culm of the intermediate transfer device 16 is automatically executed based on the automatic switch 67 for turning on the entire culm being turned on and the pre-processing unit 2 being raised to the predetermined height H. Therefore, the operability at the time of high mowing can be remarkably improved, and a decrease in the threshing processing accuracy due to an erroneous operation can be reliably prevented. In other words, in the conventional apparatus, the start and end of high mowing are always conscious, and the switch for inputting all culms is turned ON-O at each start and end of high mowing.
Since the FF operation is required, frequent switch operations are required and the operability is inferior. However, in the case of the present invention, once the full culm input automatic switch 67 is turned ON once, the pre-processing unit 2 associated with high mowing is required. Since the whole culm input control is automatically executed based on the ascending operation, the operability can be remarkably improved by almost eliminating the need for a switch operation.
There is a possibility that the entire culm input control may be executed at the time of non-high cutting based on an erroneous ON operation or forgetting of the OFF operation. However, according to the present invention, even if the switch is turned ON at the time of provisional non-high cutting, the pre-processing unit is not used. If the is in a down state, the execution of the whole culm input control is regulated, so that it is possible to reliably prevent the execution of the whole culm input control at the time of non-high cutting, and therefore, the whole culm input control at the time of non-high cutting. It is possible to eliminate all inconveniences that decrease the threshing processing accuracy by executing the control.

Further, in this embodiment, since all culm loading operations other than the forward cutting traveling are regulated, it is possible to reliably prevent the intermediate transport device 16 from being uselessly operated during traveling on the road or traveling backward. Can be.

In the handling depth control, the intermediate transfer device 16
In the whole culm input control, since the intermediate transfer device 16 is operated continuously (high speed operation), the operation is switched from the depth adjustment state to the whole culm input state and the whole culm input state is operated. The return to the depth-adjusted state can be performed very quickly, and as a result, the inconvenience that takes a long time to switch and lowers the working accuracy can be surely eliminated.

In the whole culm input control, the end of high mowing is determined based on the OFF of the main sensor 75, and the intermediate conveyance device 16 is automatically returned to the position at the start of high mowing. There is no inconvenience that the device 16 maintains the entire culm input posture even after the completion of high mowing. That is, when the intermediate transport device 16 maintains the entire culm input posture even after the completion of the high cutting, the rotation of the intermediate transport device 16 to the appropriate position based on the handling depth control is delayed, so that the non-high-cut stem culm is handled. There is a risk that the entire culm may be thrown into the stalk 21 or that deep handling may occur. However, since the intermediate transfer device 16 is automatically returned to the previous appropriate handling depth position based on the end of the high mowing, the above-described inconvenience is eliminated. By eliminating everything, it is possible to significantly improve the threshing process accuracy.

As described above, the O of the main sensor 75
Lowering operation of the preprocessing unit 2 (performed after running backward after finishing high mowing) to execute automatic return based on FF
The timing of the automatic return should not be delayed as in the case of automatic return based on the vehicle, or the timing of the automatic return as in the case of automatic return based on the reverse running operation (performed immediately after the end of high mowing) There is no fear that it will be too fast, and as a result, there is a problem that all culms are thrown out of non-high-cut stems, and a problem that shallow handling is performed by transferring high-cut short culms to the threshing transport device 15 and the like. Can be prevented.

In addition, when all the culms are loaded, the movable partition plate 44 provided in the handling room 21 is automatically moved to the open position (promotion position) regardless of the setting position of the partition setting switch 65. Even if the whole culm is put in 21, the handling cylinder 4
The stem culm carried around to zero can be promptly shifted to the end of the handling room based on the promoting action of the movable partition plate 44, and as a result, the threshing process when all culms are thrown in is speeded up, thereby improving work efficiency. In this case, the load on the handling cylinder 40 can be greatly reduced, and the occurrence of clogging can be reliably prevented.

In addition, when the whole culm is introduced, the sorting fin 55 and the closing plate 60 are automatically operated to the closing side regardless of the float sensor value. Even if a substance is mixed, it is possible to prevent as much as possible the foreign substance from being mixed into the grain collecting part 50, and as a result, it is possible to remarkably improve the sorting accuracy when all the culms are charged.

Further, when the entire culm is inserted, the running speed is automatically reduced by setting the low-speed running control value VL to the conversion value V regardless of the lever potential value. In order to reduce the processing load on the handling room 21, it is not necessary to decelerate the speed change lever 68 in particular. Therefore, it is possible to remarkably improve the operability by reducing the operation load at the start of high mowing, or it is also possible to perform high mowing at high speed and reduce inconvenience such as reduced threshing accuracy and clogging of stems Can be avoided.

[0052]

In summary, since the present invention is constructed as described above, the stems harvested in the pretreatment section are fed into the handling room without being transferred to the threshing transport device, so-called thread shells. By threshing in a manner, it is possible to omit the hand-cutting work by enabling high cutting at the ridge, but in the present invention, an intermediate transfer device having a handling depth adjustment function, Rotation of the intermediate transfer device to move all stems into the handling room by rotating the stem to the position where the stems and culms are not transferred to the threshing transfer device beyond the deep handling side limit position during normal work A combine that does not need to be hand-cut can be configured only by a very easy change that extends the range. Therefore, it is not necessary to provide a switching mechanism for switching to the non-repeatable state or to separately add an actuator for switching the mechanism as in the related art.
As a result, the structure can be significantly simplified, or the number of parts can be significantly reduced.
It is possible to remarkably reduce the cost of a combine that does not require hand cutting.

Further, in the present invention, the starting end of the intermediate conveying device rotated to the position for introducing all the culms and the terminal end of the pretreatment conveying device are separated from each other in the stem / culm conveying direction, so that interference between the conveying devices is prevented. Although it has been avoided, an auxiliary transfer device that assists the transfer of stems and stems from the pretreatment transfer device to the intermediate transfer device is provided side by side below the end of the pretreatment transfer device. In the transfer section with the device, the conveying posture of the stem / culm is not disturbed, and there is no conveyance failure such as dropping of the stem / culm, and as a result, the two conveying devices are separated in the stem / culm conveying direction. In spite of this, it is possible to carry out smooth and reliable stem and stem transfer.

By the way, in the transfer section between the above-mentioned transfer devices, there is a possibility that the conveying posture of the stem / culm is disturbed, and the conveying posture tends to be more disordered as the conveying amount of the stem / culm is smaller. Because the transfer start end of the auxiliary transfer device is positioned near the stalk / culm confluence position of the pretreatment transfer device, it is possible to reduce the chance that the transfer position of the stem and culm is aggregated and the transfer posture is disturbed, By transporting the combined stems and stems, the transport amount can be ensured as much as possible, and as a result, disorder of the transporting posture can be reduced and ordered stem and stem transport can be performed.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a combine.

FIG. 2 is a side view of a pre-processing unit.

FIG. 3 is a plan view of the same.

FIG. 4 is a front view of a threshing unit.

FIG. 5 is a perspective view showing a transfer section between a pretreatment section and a threshing section.

FIG. 6 is a side view of a main part showing an auxiliary feed chain.

FIG. 7 is a front view showing a positional relationship between a stock feed chain and threshing feed chain.

FIG. 8 is a schematic side view of a preprocessing unit showing a high cutting state.

FIG. 9 is a plan view of a field showing a mowing procedure.

FIG. 10 is a side view of a threshing unit and a sorting unit.

FIG. 11 is an internal rear view of the threshing unit.

FIG. 12 is an overall perspective view of a threshing unit and a sorting unit.

FIG. 13 is a side view of a main part of a handling room showing a movable partition plate.

FIG. 14 is a side view of the float sensor.

FIG. 15 is a perspective view of an operation unit.

FIG. 16 is a block diagram showing input / output of a control unit.

FIG. 17 is a flowchart of depth control.

FIG. 18 is a flow chart of whole culm input control.

FIG. 19 is a flowchart for controlling a partition plate.

FIG. 20 is a flowchart of automatic sorting control.

FIG. 21 is a graph showing a fin position and a closing position with respect to a float sensor value.

FIG. 22 is a flowchart of continuously variable transmission control.

FIG. 23 is a graph showing a function for converting a lever potential value.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 traveling machine body 2 pretreatment section 3 threshing section 4 sorting section 13 stock transporter 15 threshing transporter 16 intermediate transporter 18 stock feeder chain 21 handling room 21a entrance 22 auxiliary feed chain 26 head conveyor 29 stock conveyor 44 movable partitioning plate 55 sorting fin 60 closing plate 71 control unit

Continuation of front page (58) Field surveyed (Int. Cl. ⁶ , DB name) A01D 61/00 302 A01D 61/00 301

Claims (1)

(57) [Claims] 1. A pretreatment transport device for transporting cutting stems stalked from a plurality of raking paths arranged side by side while merging them, and a stem culm transported to an end portion of the pretreatment transport device to a threshing unit. An intermediate transport device for nipping and transporting the same, and a threshing transport device for nipping and transporting the stems and stems transported to the terminal end of the intermediate transport device along the handling chamber are provided, and the intermediate transport device is provided with a transport end side. In the combine which is configured to be rotatable as a fulcrum and the handling depth is adjusted based on a change in the position of holding the stem and stalk of the threshing transport device accompanying the rotation, the intermediate transport device is provided on the deep handling side during normal work It is configured to be rotatable beyond the limit position and to a position where the stems and culms are not transferred to the threshing transport device, and in the pivot position, all the stems and culms transported to the end portion of the intermediate transport device are put into the handling room. In the middle, the intermediate transfer device turned to the position where all culms are loaded Separates the beginning and end of the pretreatment transport device in the stem and stem transport direction to avoid interference between transport devices and assists in the transfer of stems and stems from the pretreatment transport device to the intermediate transport device. Wherein the auxiliary transport device to be mounted is arranged in parallel below the end of the pre-processing transport device, and the transport start end of the auxiliary transport device is located near the stalk / culm confluence position of the pre-process transport device. Stalk culm conveyor.