JPH07194227A - Stem straw-carrying device of combine - Google Patents

Abstract

PURPOSE:To provide a stem straw-carrying device provided with an intermediate carrying device, etc., capable of simplifying the structure of the device and largely reducing the number of its parts, enabling the cost reduction, and further enabling to prevent the disorder of the carried stem straws as much as possible. CONSTITUTION:In this stem straw-carrying device, an intermediate carrying device 16 is made up in a state capable of being rotated to a position exceeding a deep threshing side limit position on usual works and not successively carrying the stem straws to a threshing carrying device, and the whole bodies of the stem straws carried to the final end of the intermediate carrying device 16 are charged into a threshing chamber 21. Therein, the starting end of the intermediate carrying device 16 rotated to a whole straw-charging position is separated from the final end of a pretreating carrying device in the stem straw-carrying direction to avoid the mutual interference of the carrying devices, and an auxiliary carrying device for supporting the successive carriage of the stem straws from the pretreating carrying device to the intermediate carrying device 16 is disposed in parallel to the devices at a position below the final end of the pretreating carrying device. Further, the carrying-starting end of the auxiliary carrying device is placed at a position near to the stem straw flow-joining position of the pretreating carrying device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine stem culm conveying device for throwing all highly cut short culms into a handling room.

[0002]

BACKGROUND OF THE INVENTION Generally,
With this type of combine, when attempting to mow the stem culm at the edge of the ridge with the body posture facing the ridge, due to the structure of the pretreatment section (the structure in which the divider projects in front of the cutting blade), it is inevitable Since it is in the mowing state, there is a disadvantage that the high-cut short culm is shallowly handled in the threshing part and left untreated,
For this reason, conventionally, the corners of the field accompanied by high cutting have been hand-cut in advance, but since the hand-cutting work is heavy work, workability and work efficiency have been problems. Therefore, the stem culms that should be transferred from the pretreatment transfer device to the threshing transfer device (through feed chain) should be thrown into the handling room without transferring to the threshing transfer device to perform threshing processing by the so-called thresher method. It has been proposed that high cutting can be performed and that hand cutting is not required by performing cutting according to the procedure shown in FIG. 9 (hatching is a high cutting part). As means for not transferring stalks, as in the case of the actual Kaihei 4-124035, the stalk-clamping interval of the threshing / conveying device is switched to an interval in which the stalks are not clamped, and as in the case of the actual Kaihaku 5-31536. It is known that the starting end of the carrier device is rotated to a position where the stem culms are not clamped. However, in the above, it is necessary to configure a switching mechanism for switching to the non-relaying state, and it is necessary to separately add an actuator for switching the mechanism, so that the structure becomes complicated. However, there is an inconvenience that the number of parts is increased and the cost is increased.

[0003]

SUMMARY OF THE INVENTION The present invention was conceived with the object of providing a combine stem and culm transporting device capable of eliminating these drawbacks in view of the above-mentioned circumstances. And a pretreatment transfer device that conveys the cutting culm that is scraped from a plurality of scraping paths lined up in parallel with each other, and an intermediate process that sandwiches and conveys the stalks that have been transferred to the terminal end of the preprocessing transfer device toward the threshing part. A transporting device and a threshing transporting device for sandwiching and transporting the stalks transported to the end portion of the intermediate transporting device along the handling chamber are provided, and the intermediate transporting device is rotatable about the transporting end side as a fulcrum. In a combine configured to adjust the handling depth based on the change of the stem-culm holding position of the threshing transport device associated with the rotation, the intermediate transport device exceeds the deep handling side limit position during normal work, and Stem culm for threshing conveyor The intermediate transfer device is configured to be rotatable to a position where it is not continuously fed, and at the rotating position, when the stem culms transferred to the end portion of the intermediate transfer device are all culled into the handling chamber, the intermediate transfer device is rotated to the all culm feeding position. The starting end and the end of the pre-treatment transfer device are separated in the stalk transfer direction to avoid interference between the transfer devices and to assist the transfer of stalks from the pre-processing transfer device to the intermediate transfer device. Auxiliary transporting device is arranged in parallel with the lower end position of the pretreatment transporting device, and the transporting start end of the auxiliary transporting device is located near the stem-culm merging position of the pretreatment transporting device. Is. Further, according to the present invention, it is possible to prevent, as much as possible, the disturbance of the transport stems at the transfer portion between the pretreatment transport device and the auxiliary transport device.

[0004]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, one embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a combine traveling machine, and the traveling machine body 1 includes a pretreatment unit 2 for cutting stem stems, a threshing unit 3 for threshing grains from the cut stems, and a threshed grain. A sorting unit 4 for sorting, a post-processing unit 5 for discharging threshered culms, an operating unit 6 in which various operating tools are arranged, a crawler type traveling unit 7 and the like are provided. Both are conventional.

The pretreatment unit 2 divides the stems into a number of cutting lines, a divider 8, a raising device 9 for raising the stems, a cutting blade 10 for cutting the roots of the raised stems, A star wheel 11 for scraping the root part of the stalks above the cutting blade 10, a scraping device 12 for scraping the middle part of the stalks above the star wheel 11, and scrapes from each scraping path A pair of left and right stock-source transporting devices (pre-treatment transporting devices) 13 and 13a and a tip transporting device 14 for merging the stems at the transporting end portion, while transforming the merged vertical stems into a horizontal posture, The pre-processing unit 2 includes a lift cylinder 17 although it is configured by an intermediate transfer device 16 or the like that transfers it toward the threshing transfer device 15.
The cutting height of the stalks can be freely adjusted based on the operation of the lift cylinder 17 because it is connected to the front end of the machine body so as to move up and down with the expansion and contraction operation.

The intermediate transfer device 16 is constructed in a unit by arranging a stock base feed chain 18 for sandwiching and carrying the stock side of the stem and a tip carrier 19 for sending and carrying the tip side of the shoot. However, the unitized intermediate transfer device 16 is supported so as to be vertically rotatable around 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 transfer device 16 holds the stem culm transferred to the terminal end of the stock source transfer device 13, the holding position is
Since it can be moved up and down based on the vertical rotation with the transport end side as a fulcrum, the stem-culm holding position of the threshing transport device 15 that inherits the stems at the terminal end of the intermediate transport device 16 is changed to change the threshing unit 3 It is possible to adjust the handling depth in.

By the way, in the adjustment of the handling depth, the distance L1 between the stem culm position of the stalk and the stem squeezing position of the stock feeder chain 18 is determined by the end portion of the sprouting food chain 18 and the start end of the threshing conveying device 15. The intermediate transfer device 16 is rotated up and down within a range that is larger than the distance L2 from the section, that is, a range in which the threshing transfer device 15 can inherit the culm, but the intermediate transfer device 15 of the present invention handles It is configured so that it can be lowered to a position beyond the deep handling side limit of the depth adjustment range, and the planter side of the culm can be pinched further than when the handling depth is adjusted. That is, at this rotating position, the interval L1 is smaller than the interval L2, and therefore the intermediate transfer device 1
The stem culms transported to the terminal end of No. 6 can be put into the handling chamber 21 of the threshing unit 3 without transferring them to the threshing transport device 15.

In addition, in order to make the intermediate transfer device 16 rotatable to the all culm feeding position, the stock source feed chain 1
In order to prevent the start end of 8 from interfering with the end of the stock carrier carrier 13, the end of the stock carrier carrier 13 and the start of the stock feeder chain 18 are separated by a predetermined distance L3 in the stalk transfer direction. However, at the position below the terminal end of the stock carrier carrier 13 (in this embodiment, the height is set within a range L4 that is higher than the cutting blade 10 and lower than the star wheel 11), Since the feed chain 18 and the feed chain 18 are connected to each other in a substantially straight line in a plan view, and the auxiliary feed chain 22 that overlaps the stalk transfer range of the stock feed chain 13 and the stock feed chain 18 is juxtaposed, the stock transport system as described above. Even if 13 and the stock source feed chain 18 are separated from each other in the stalk transfer direction, the stock source transport device 13 and the stock source feed chain 18 can be reliably transferred.

By the way, the auxiliary feed chain 22
Is suspendedly supported by a pair of front and rear sprockets 23, and the starting end side sprockets 23 are
Since it is arranged in the vicinity of the lower end of the sprocket 24 on the terminating end side that suspends and supports the terminating end portion of 3, the starting end portion of the auxiliary feed chain 22 is attached to the conveying end portion of the stock carrier conveying device 13 that merges the scraped culm. Is located. That is, at this position, the merging of the stem culms scraped from the respective scraping paths and the continuous feeding of the merged stem culms to the auxiliary feed chain 22 are performed at substantially the same time. Incidentally, in this embodiment, both sprockets 23 arranged in a superposed manner as described above,
Since 24 is integrally interlocked and coupled via a transmission shaft 25, both devices 13 and 22 are driven based on one of the driving forces (driving force on the stock carrier device 13 side or the auxiliary feed chain 22 side). It can be done.

On the other hand, reference numeral 26 is a tip side conveyor disposed at a joint portion between the intermediate conveying device 16 and the threshing conveying device 15, and the tip side conveyor 26 is a pair of front and rear rollers 2.
7 is configured by suspending a wide belt body 28 in the left-right direction (culm length direction), but the start end of the tip side conveyor 26 is near the rear of the intermediate transfer device 16 and is the end of the stock yuan feed chain 18. On the other hand, the terminal portion is located at substantially the same height as the front portion of the handling chamber 21 and is slightly higher than the lower end of the handling chamber inlet 21a. It is arranged so as to be inclined. Then, the tip side conveyor 26 arranged in this way, when the intermediate transfer device 16 is rotated to the all culm insertion position as described above, the tip end side of the stems transferred to the terminal end of the intermediate transfer device 16. In addition to receiving from the lower side, the tip end side of the received stem culm is forcibly put into the handling chamber 21 by the conveying action of the belt body 28.

Further, 29 is a stocker side conveyor which is arranged side by side on the outside of the tip side conveyor 26. The stocker side conveyor 29 is constructed by suspending a belt body 31 between a pair of front and rear rollers 30. ing. And, when the intermediate transfer device 16 is rotated to the all culm input position, this one receives the plant side of the stem culm conveyed to the terminal end of the intermediate transfer device 16 from below, and also receives the received stem culm plant. Belt side 3 on the original side
Although it is forcibly put into the handling chamber 21 by the carrying action of 1,
The starting end of the stocker side conveyor 29 is arranged in a horizontal position at a position lower than the starting end of the tip side conveyor 26, while the terminal end is higher than the terminal end of the tip side conveyor 26 and has an arc shape. The threshing conveyance device 15 is arranged in an inclined posture (inclined so that the tip side becomes lower) along the handling room inlet 21a, and as a whole, intersects the tip side conveyor 26 in a side view and inclines in a front low rear high shape. Are arranged along the starting end of the.

Further, 32 and 33 are the conveyors 26,
A support shaft for supporting the rollers 27, 30 on the terminal end side of the support shaft 29, the support shafts 32, 33 being connected to each other via a universal joint 34.
Is connected via a universal joint 37 to a support shaft 36 that supports the starting end side sprocket 35 of the threshing conveyance device 15,
For this reason, the conveyors 26 and 29 are always provided with the threshing and conveying device 1
It is designed to drive or stop in conjunction with 5.

On the other hand, the threshing section 3 includes a threshing conveying device 15
Threshing feed chain 38 and sandwiching rail 3
9, a handling barrel 40 installed in the handling chamber 21, a receiving net 41 for leaking down the handling items of the handling barrel 40, and a handling handle reaching the end of the handling chamber without passing through the receiving net 41. The processing cylinder 42 that processes the object again, the second receiving net 43 that leaks the processed material of the processing cylinder 42, and the like.
A plurality of movable partition plates 44 are juxtaposed in the front-rear direction at predetermined intervals. Then, each movable partition plate 44 is freely rotatable and transformable into a rearwardly inclined position for stagnating the flow of the stalks, a forwardly inclined position for promoting the flow of the stalks, and a neutral position intermediate between the two positions. However, each movable partition plate 44 is the connecting plate 4
In addition to being interlockingly connected via 5, the partition plate motor 46 is forcibly transformed based on the drive.

Further, the sorting section 4 includes a swinging sorting body 47 for swinging and sorting the handled material, a sorting fan 48 for raising a sorting wind, a dust-exhausting fan 49 for discharging foreign matters, and the first item. First grain collecting section 50 for collecting rice, second grain collecting section 5 for collecting second crop
The first end of the first swing selecting section 52 (corrugated plate-like swing transfer plate) forming the upper stage of the swing selecting body 47 is formed from the receiving net 41. A float sensor 53 that moves up and down according to the increase / decrease in the material that has fallen off is disposed. The float sensor 53 is supported on the machine frame 1a side so as to be vertically swingable, and is connected to a potentiometer 54 that detects the swing position. Since the detection value of the float potentiometer 54 changes periodically corresponding to the swing cycle of the swing selecting body 47, it can be obtained by picking up the peak value voltage without using the raw value as it is. The converted signal is used.

Further, 55 is a sorting fin that is arranged in parallel on the terminal end side of the first swing sorting portion 52 with a predetermined interval, and the sorting fin 55 sorts the handled material by straining. The selection fins 55 are rotatably provided to change the fin opening, and
Since it is linked to the fin motor 56, the fin opening can be freely adjusted based on the drive of the fin motor 56.

Further, 57 is a second swing selecting section which constitutes the lower stage of the swing selecting body 47, and the second swing selecting section 57 is filtered by the first swing selecting section 52. In order to further filter the selected grain, it is arranged below the sorting fin 55 and above the most grain collecting section 50, which forms the sorting start end side. A corrugated plate-like swinging transfer plate 58, a crimping net 59 forming a sorting end side,
The crimp net 59 is composed of a slidable closing plate 60 and the like for adjusting the closing amount (passage area) of the crimping net 59. 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 section 6 is provided with a front operation panel 62 located in front of the driver's seat 6a and a side operation panel 63 located beside the driver's seat 6a. Reference numeral 62 includes a pre-processing lift lever 64 for lifting and lowering the pre-processing unit 2, a partition plate setting switch 65 for setting the position of the movable partition plate 44, and an automatic depth-of-handle switch for turning ON / OFF the depth control described later. 66, an operation tool such as an all-cutter input automatic switch 67 for turning on and off all-cutter input control, which will be described later, is arranged, while the side operation panel 63 is provided with a speed change lever 68 for changing the speed of a continuously variable transmission (not shown) , A cutting clutch lever 69 for intermittently operating the cutting power (power of the pretreatment unit 2), a working machine clutch lever 70 for intermittently operating the working machine power (power of the threshing unit 3, the sorting unit 4, etc.) It is.

Further, 71 is a micro computer (C
(Including 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 all the culms. In addition to the closing automatic switch 67,
A pre-processing potentiometer 72 for detecting the ascending / descending position of the pre-processing unit 2, a handling depth stroke sensor 73 for detecting the rotating position of the intermediate conveying device 16, and a deep handling side limit position of the intermediate conveying device 16 in adjusting the handling depth. Depth limit switch 74 that detects the presence of a stalk, a main sensor 75 that detects the presence or absence of stalk culms in the intermediate conveyance device 16, and a depth sensor that detects the depth of stalk in the intermediate conveyance device 16 (a tip sensor that has a predetermined interval in the stalk length direction). 76 and the stock sensor 77), a partition plate potentiometer 78 for detecting the attitude of the movable partition plate 44,
A fine potentiometer 79 for detecting the opening degree of the selection fin 55, a closing potentiometer 80 for detecting the closing amount of the closing plate 60, a pretreatment raising switch 81 for detecting the raising / lowering operation of the pretreatment raising / lowering lever 64, and Pre-processing lowering switch 82, lever potentiometer 83 for detecting the operating position of speed change lever 68, cylinder potentiometer 84 for detecting the operating cylinder length of the continuously variable transmission, and mowing clutch for detecting the connection operation of mowing clutch lever 69. Signals are input from the work machine clutch switch 86 and the like for detecting the connection operation of the switch 85 and the work machine clutch lever 70, and the handling depth motor 20, the partition plate motor 46, and the fin motor 56 are judged based on these input signals. Solenoid valve for raising and lowering the plugging motor 61 and 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 depth of handling for controlling the vertical rotation position of the intermediate transfer device 16 based on the detections of the tip sensor 76 and the stock sensor 77.
All culm feeding control for controlling the rotation position of the intermediate transfer device 16 so as to throw all the culms that have been cut high into the handling room 21, the partition plate 44
Control procedures such as a partition plate control for controlling the posture of the vehicle, a sorting automatic control for controlling the fin opening F and the clogging amount M, and a continuously variable transmission control for controlling the continuously variable transmission. The control will be sequentially described.

In the control of the handling depth, first, it is judged whether all the culm injection automatic switches 67 are ON or OFF, and the judgment is O.
If it is N, the all culm throwing control which is a subroutine is executed. On the other hand, if it is judged to be OFF, after setting the all culm throwing flag to "0", the automatic handling depth switch 66 is turned on. Although -OFF is determined, even when the all-cullet throwing control is executed, if the all-cullet throwing flag is "0", ON-OFF of the handling depth automatic switch 66 is determined. Here, when the determination is OFF, the handling depth operation of the intermediate conveyance device 16 (the handling depth motor 20
Drive) to return to the main routine, while
If it is N, it is further judged whether the mowing clutch switch 85 and the main sensor 75 are ON or OFF. However, only when both judgments are ON, the following handling depth adjusting routine is executed, and either one 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, ON-OFF of the stock origin sensor 77 and the tip sensor 76 is determined, but when both sensors 76 and 77 are ON, it is determined that the deep handling state is present, and the intermediate state is reached. While the transfer device 16 is intermittently operated to the shallow handling side (raised) (the handling depth motor 20 is operated at a low speed based on the inching signal), both sensors 76 and 77 are turned on.
In the case of FF, it is judged that it is in the shallow handling state, and the intermediate conveying device 16 is intermittently operated to the deep handling side (down), and
The stock sensor 77 is ON and the tip sensor 76 is OFF.
In such a case, it is determined that the handling depth is appropriate, and the handling depth operation of the intermediate conveyance device 16 is stopped.
That is, the handling depth is adjusted to be constant by locating the tip position of the transport culm in the intermediate transport device 16 between the sensors 76 and 77, but the intermediate transport device 16 adjusts the handling depth described above. When the deep handling side limit position of the range is reached, the handling depth operation is stopped based on the detection of the deep handling limit switch 74, while the intermediate transfer device 16 causes 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 of the full culm injection automatic switch 67
In the all culm throwing control executed at the time of N, first, the set value of the all culm throwing flag (0 = handling depth adjustment operating state, 1 = all culm throwing operating state, 2 = handling depth automatic reset state) is determined, When the set value is "0", the ON determination of the mowing clutch switch 85, the forward traveling determination based on the cylinder potentiometer 84, and the ON determination of the pretreatment rising switch 81 are continuously performed, and these determinations are also made. If both are ON or YES, it is further determined whether or not the preprocessing unit 2 has risen to the predetermined height H. That is, during the forward cutting run, the preprocessing unit 2 has a predetermined height H
If it is operated up to, it is judged to be in the high cutting state, "1" which means all culm insertion operation command is automatically set in the all culm insertion flag, and the current handling depth stroke value is set. The (rotational position of the intermediate conveyance device 16) is stored in a predetermined storage area A.

With the all culm input flag set to "1", the intermediate transfer device 16 is continuously operated to the deep handling side (down) until the deep handling limit switch 74 is turned on (based on the continuous signal). The handling depth motor 20 is operated at high speed, and the handling depth stroke value when the deep handling limit switch 74 is switched from OFF to ON is stored in a predetermined storage area B. The intermediate conveyance device 16 is continuously operated to the deep handling side until the stored value B is changed to the deep handling side by a predetermined amount D. In this state, the distance L1 is equal to the distance L2.
Since it is smaller than that, the stem culms conveyed to the end portion of the intermediate conveying device 16 are all introduced into the handling chamber 21 of the threshing unit 3 without being transferred to the threshing conveying device 15.

Further, in the state where all the culms are put in, it is always judged whether the main sensor 75 is turned off. Then, when the main sensor 75 is turned off, it is determined that the high-cutting is completed, and "2" is set in the all culm throwing flag, but in the state where "2" is set in the all culm throwing flag. , The handling depth stroke value is the stored value A
The intermediate transfer device 16 is continuously operated to the shallow handling side until the value coincides with, and then, "0" is set to the all-culm feeding flag to end the all-culm feeding control. That is, when the end of the high-cutting is judged based on the OFF state of the main sensor 75, the intermediate conveyance device 16 is automatically returned to the position at the start of the high-cutting.

In the partition plate control, first, it is judged whether the working machine clutch switch 70 is ON or OFF, and the judgment is OF.
If it is F, the routine directly returns to the main routine, while if it is judged to be ON, the set value of the all culm injection flag is further judged. When the set value is "0", the movable partition plate 44 is moved to the set position (open, closed, standard) of the partition plate setting switch 65, but the set value of the all culm insertion flag is "0". If it is other than the above, it is determined that all the culms have been inserted, 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 selection control, the ON / OFF state of the work machine clutch switch 70 is first determined, and the determination is 0.
If it is FF, it returns to the main routine as it is, while if it is judged to be ON, the set value of the all culm injection flag is further judged. When the set value is "0", the control position F (F1, F2, F3) of the selection fin 55 and the control position M (M1, M2, M3) of the closing plate 60 are determined based on the float sensor value. In addition, the selection fins 55 and the closing plate 60 are operated up to the control positions F and M based on the comparison between the determined control positions F and M and the potentio values X and Y. In other words, the first swing sorting section 52 and the second swing sorting section 57 are arranged so that the sorting processing capacity can be increased or decreased according to the increase or decrease of the unhandled items.
However, if the set value of the all culm input flag is other than "0", F0 and M0 (normal control range) are set to the control positions F and M regardless of the float sensor value. (Closer to the closing position) than the setting fin 55
Also, the closing plate 60 is automatically operated to the closing side. In the present embodiment, even if the float sensor value exceeds the predetermined value D1 even in the all culm throwing state,
In order to avoid a large difference between the amount of unhandled material and the sorting capacity, the control position F,
It has come to decide M.

Further, in the continuously variable transmission control, the raw value D of the lever potentiometer 83 is converted on the basis of a predetermined function, and the converted value V coincides with the cylinder potentiometer value VP of the continuously variable transmission. In order to achieve this, the continuously variable transmission is accelerated and decelerated and stopped. However, when the set value of the all culm input flag is "1", the conversion value V is traveled at a low speed regardless of the lever potentiometer value. The control value VL is set and the traveling speed is automatically reduced.
In this embodiment, the conversion value V
Is smaller than the low speed traveling control value VL, the traveling speed is maintained as it is without decelerating the traveling speed.

In the embodiment of the present invention constructed as described above, in order to carry out threshing treatment by a so-called threshing method by feeding all the culms into the handling room 21 without transferring the highly trimmed short culm to the threshing conveying device 15. , It is possible to cut high on the edge of the ridge without causing grain loss due to shallow handling, and hand cutting work can be omitted, but the whole culm can be freely rotated to adjust the handling depth. Since it is executed by controlling the rotation of the intermediate transfer device 16 configured as described above to the position where the deep side limit position during normal work is exceeded and the stalks are not transferred to the threshing transfer device 15, In addition, it is not necessary to provide the threshing / transporting device 15 with a mechanism for switching between the continuous state and the non-continuous state, or to separately add an actuator for operating the mechanism. Therefore, the structure can be remarkably simplified, or the number of parts can be significantly reduced. As a result, the combine that does not require hand cutting can be constructed at an extremely low cost.

In order to make the intermediate transfer device 16 rotatable to the all culm input position, the stock source feed chain 1 is used.
In order to prevent the start end of 8 from interfering with the end of the stock carrier carrier 13, the end of the stock carrier carrier 13 and the start of the stock feeder chain 18 are separated by a predetermined distance L3 in the stalk transfer direction. However, since the auxiliary feed chain 22 that overlaps the stem culm conveying range of the stock yuan transport device 13 and the stock yuan feed chain 18 is installed in parallel at the position below the terminal end of the stock yuan transport device 13, the stock yuan transport device 13 and the stock yuan feed chain 18 are provided. It is possible to reliably carry out continuous feeding between the stem and the culm without disturbing the conveying posture of the stem and the defective conveyance such as dropping of the stem.

Further, in the transfer section between the above-mentioned respective conveying devices, there is a possibility that the conveying posture of the stalks may be disturbed, and the smaller the conveying amount of the stalks is, the more the conveying posture tends to be disturbed. Since the starting end portion of the auxiliary feed chain 22 is located at the confluence portion of the stock carrier transporting device 13, it is possible to reduce the chance that the stalk culm can be merged and transferred at substantially the same position to disturb the transportation posture. By transporting the combined stem culms, the transport amount can be secured as much as possible, and as a result, it is possible to reduce disorder in the transport posture and to carry out orderly transport of the stem culms.

The auxiliary feed chain 22 connects the stock feeder 13 and the stock feeder 18 in a substantially straight line in a plan view, and overlaps the stem-culm carrying range of the stock feeder 13 and the stock feeder 18. Since it is arranged in such a manner, the stem culm conveyed to the end portion of the stock yuan transfer device 13 can be reliably transferred to the stock yuan feed chain 18 without dropping or disturbing the transfer posture. It is possible to reliably prevent problems such as the chain carrying the stem culms and the stalks around the sprocket.

Since the height of the auxiliary feed chain 22 is set within the range L4 which is higher than the cutting blade 10 and lower than the star wheel 11, the intermediate transfer device 16 is as low as possible. It is possible to rotate to the position, and as a result, it is possible to ensure the difference between the distance L1 and the distance L2 at the time of throwing in all the culms and to surely carry out all the culms.

Further, since the starting end side sprocket 23 of the auxiliary feed chain 22 and the ending end side sprocket 24 of the stock feeder 13 are integrally interlocked via a transmission shaft 25, either one of the drives is driven. Both the devices 13 and 22 can be driven based on the force, and therefore, the transmission mechanism can be greatly simplified, and the weight of the machine body can be reduced.

Further, the intermediate transfer device 16 and the threshing transfer device 1
Since the tip side conveyor 26 that receives the tip end side of the stem and culm that is not transferred to the threshing transfer apparatus 15 from below and forcibly inputs it into the handling chamber 21, is connected to the threshing transfer apparatus 15, It is possible to surely put all the culms that have not been sent into the handling chamber 21, and as a result, it is possible to surely avoid the loss of grain due to the dropping of the culms.

Further, since the tip end side conveyor 26 is composed of the belt body 28, the stem culm can be reliably conveyed to the inlet 21a of the handling chamber 21, and as a result, the handling chamber inlet 2
It is possible to reliably prevent the stalks of the ladle 1a from being stagnant or blocked.

Since the belt body 28 is formed wide in the culm length direction, it is possible to prevent shedding during transportation by avoiding an excessive force applied to the culm.
Even if temporary shedding occurs, it will be transported along with the stems to the handling room 21.
Can be used as a result, and as a result, grain loss can be significantly reduced.

Further, since the wide belt member 28 does not have a risk of winding the stems, the work efficiency is not deteriorated due to the interruption of work due to the winding of the stems, and the stems are not wound. Therefore, the inconvenience of damaging or deforming the member can be reliably eliminated.

Further, since the tip end side conveyor 26 is arranged so that the conveying surface is inclined frontward, rearward and downward, it is possible to surely feed the grains shattered during the transportation into the handling chamber 21. This is not permitted, and it becomes possible to receive the grains blown out from the handling chamber 21 and return them to the handling chamber 21, and as a result, the grain loss can be greatly reduced.

The start end of the tip side conveyor 26 is located near the rear of the intermediate conveying device 16 at substantially the same height as the end of the stock yuan feed chain 18, while the end is at the front end of the handling chamber 21. In the vicinity of the plane, the handling room entrance 21
Since it is arranged to be positioned slightly higher than the lower end of a,
It is possible to reduce the drop with the intermediate transfer device 16 to reduce the disturbance of the stem culm posture as much as possible, or it is possible to reliably prevent the stalks from becoming stagnant or clogging at the handling chamber inlet 21a.

Further, since the stocker side conveyor 29 that conveys the stocker side of the stems is installed outside the tip side conveyor 26, the stems that are not transferred to the threshing and conveying device 15 can be handled more reliably. All culms can be put into the chamber 21.

Further, since the starting end position of the stocker side conveyor 29 is set to a position lower than the starting end position of the tip side conveyor 26, the stem culms conveyed to the terminal end of the intermediate conveying device 16 are inclined. It is possible to inherit it as it is.
Therefore, it is possible to avoid a large change in the stalk culm posture, and as a result, it is not possible to smoothly insert the stalk culm that is not transferred to the threshing transport device 15 into the handling chamber 21, and the stalk culm posture is not allowed. It is possible to surely eliminate the fall and clogging of the stem culm due to the disorder of the.

Further, since the stocker side conveyor 29 is arranged in a posture intersecting the tip side conveyor 26 in a side view, the stem culm inherited from the intermediate conveying device 16 is introduced into the inlet portion 21a of the handling chamber 21. You can smoothly transform into a posture that fits.

Further, since the stocker side conveyor 29 is disposed along the threshing and conveying device 15, the intermediate conveying device 16 is provided.
It is possible to transfer the stem culms from the stems and to transfer the stem culms to the handling room 21 in a stem culm posture that is substantially the same as the case where the threshing transport device 15 sandwiches and transports the stem culms. Although all the culm is put into the handling room without being continuously transferred to, it is possible to enable smooth culm transfer, which is comparable to that during normal work.

Further, since the terminal end portion of the stocker side conveyor 29 is inclined so as to follow the inlet shape of the handling chamber 21, the culm is not caught in the inlet portion 21a of the handling chamber 21 and the handling chamber 21 is extremely smooth. As a result, the stem culms at the inlet 21a of the handling chamber can be reliably prevented from being stagnated or blocked.

Since both the conveyors 26 and 29 are interlocked with the threshing and conveying device 15, a so-called automatic stop function (a function of automatically stopping the threshing and conveying device 15 when the pretreatment unit 2 is raised to a predetermined height or more). When the threshing and conveying device 15 is stopped, the inconvenience that both conveyors 26 and 29 operate to disturb the stem-culm posture can be reliably eliminated.

Further, the all culm throwing operation of the intermediate transfer device 16 is automatically executed on the basis that the all culm throwing automatic switch 67 is turned on and the pretreatment section 2 is lifted to a predetermined height H. Therefore, it is possible to significantly improve the operability at the time of high-cutting, and it is possible to reliably prevent a decrease in threshing processing accuracy due to an erroneous operation. In other words, in the conventional type, the start and end of high-cutting are always taken into consideration, and the switch for turning all culms is turned ON-O at each start and end of high-cutting.
Since FF operation is required, frequent switch operation is required and the operability is inferior. However, in the present invention, once the all culm throwing automatic switch 67 is turned ON, the preprocessing unit 2 associated with high cutting is provided. Since all culm injection control is automatically executed based on the ascent operation, the switch operation can be made almost unnecessary and the operability can be significantly improved.
There is a risk of executing the all culm throwing control at the time of non-high cutting based on erroneous ON operation or forgetting OFF operation, but in the present invention, even if the switch is turned ON at the time of provisional non-high cutting, the pre-processing unit When is down, execution of all culm throwing control is restricted, so it is possible to reliably prevent the execution of all culm throwing control during non-high cutting. Therefore, all culm throwing control is performed during non-high cutting. It is possible to completely eliminate the inconvenience of executing the control to reduce the accuracy of the threshing process.

Further, in this embodiment, since all the culm insertion operations other than during the forward cutting operation are restricted, it is possible to reliably prevent the intermediate transfer device 16 from being uselessly operated during the road traveling or the backward traveling. You can

In the handling depth control, the intermediate transfer device 16
Is operated intermittently (low speed operation), but in the all culm feeding control, since the intermediate transfer device 16 is continuously operated (high speed operation), switching from the handling depth adjustment state to the all culm feeding state and handling from the all culm feeding state It is possible to extremely quickly return to the depth adjustment state, and as a result, it is possible to reliably eliminate the inconvenience that it takes time to switch and the work accuracy is lowered.

In the all-culm feeding control, the end of high cutting is determined based on the OFF state of the main sensor 75, and the intermediate transfer device 16 is automatically returned to the position at the start of high cutting. There is no inconvenience that the device 16 maintains the all culm throwing posture even after the end of high cutting. That is, when the intermediate transfer device 16 maintains the all-culm insertion posture even after the end of high-cutting, the rotation of the intermediate transfer device 16 to the proper position based on the control of the handling depth is delayed, so that the non-high-cut culm is handled in the handling chamber. Although there is a possibility that all the culm will be put into No. 21 or a deep deep cut will be generated, the above-mentioned inconvenience is caused because the intermediate conveyance device 16 is automatically returned to the previous proper deep cut position based on the end of the high cutting. All the problems can be solved and the accuracy of threshing processing can be significantly improved.

As described above, the O of the main sensor 75 is
Since the automatic return is executed based on the FF, the lowering operation of the pre-processing unit 2 (performed after traveling backward after the end of high-cutting)
Allow the automatic reset timing not to be delayed as in the case of automatic return based on the above, or the automatic return timing as in the case of automatic return based on the backward traveling operation (which is performed immediately after the end of high cutting). There is no fear that it will be too fast, and as a result, problems such as the non-high-cut culm all culms are thrown in, and the short-cut high culms are transferred to the threshing transfer device 15 to cause shallow handling, etc. Can be prevented.

In addition, since 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 plate setting switch 65 when all the culms are put in, the temporary handling room is used. Even if all culms are put in 21, the handling cylinder 4
The stem culms that are carried around to 0 can be quickly moved to the end of the handling room based on the accelerating action of the movable partition plate 44. As a result, the threshing process at the time of adding all culms can be speeded up to improve work efficiency. The load on the handling cylinder 40 can be significantly reduced and the occurrence of clogging can be reliably prevented.

Further, when all the culms are put in, the sorting fins 55 and the closing plates 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 the foreign substance from being mixed into the grain collecting part 50 as much as possible, and as a result, it is possible to remarkably improve the sorting accuracy at the time of feeding all the culms.

Furthermore, when all the culms are put in, the traveling speed is automatically decelerated by setting the low speed traveling control value VL to the conversion value V regardless of the lever potentiometer value. Therefore, in order to reduce the processing load of the handling room 21, it is not necessary to further decelerate the speed change lever 68. Therefore, whether or not the operation load at the start of high-cutting can be reduced and the operability can be significantly improved, there is also a problem that high-speed high-cutting reduces the accuracy of threshing and clogs stalks. Can be avoided.

[0052]

In summary, since the present invention is configured as described above, all the culms are thrown into the handling room without transferring the stem culms cut by the pretreatment section to the threshing conveying device, which is a so-called thresholder. By threshing by the method, it is possible to omit the hand cutting work by enabling high-cutting on the edge of the ridge, but in the present invention, an intermediate transfer device having a handling depth adjusting function, Rotation of the intermediate transfer device in order to put all the culms into the handling chamber by rotating the culm to the position where it does not transfer the culm to the threshing transfer device, beyond the deep handling side limit position during normal work. It is possible to construct a combine that does not require hand cutting by only changing the range so that the range is widened. Therefore, unlike the conventional case, it is completely unnecessary to provide a switching mechanism for switching to the non-succeeding state or to separately add an actuator for switching the mechanism.
As a result, the structure can be significantly simplified, or the number of parts can be significantly reduced.
It is possible to significantly reduce the cost of a combine that does not require hand cutting.

Further, in the present invention, the start end of the intermediate transfer device rotated to the all culm feeding position and the end of the pretreatment transfer device are separated from each other in the stalk transfer direction to prevent interference between the transfer devices. Although it was avoided, an auxiliary transport device was installed in parallel below the end of the pretreatment transport device to assist the transfer of stems from the pretreatment transport device to the intermediate transport device. In the transfer section with the device, there is no occurrence of conveyance failure such as disturbing the conveying posture of the stem culm or dropping of the stem culm, and as a result, both the conveying devices are separated in the stem culm conveying direction. Despite this, smooth and reliable culm transfer can be performed.

By the way, there is a possibility that the conveying posture of the stalks may be disturbed in the transfer section between the above-mentioned respective conveying devices, and the smaller the conveying amount of the stalks is, the more the conveying posture tends to be disturbed. Since the transport start end portion of the auxiliary transport device is located in the vicinity of the stalk and culm confluence position of the pretreatment transport device, it is possible to reduce the chance of disturbing the transport posture by consolidating the transfer locations of the stalks, By transporting the combined stem culms, the transport amount can be secured as much as possible, and as a result, it is possible to reduce disorder in the transport posture and to carry out orderly transport of the stem culms.

[Brief description of drawings]

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

FIG. 2 is a side view of a pretreatment 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 unit between the pretreatment unit and the threshing unit.

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

FIG. 7 is a front view showing a positional relationship between a stock source feed chain and a 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 chamber 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 flow chart for handling depth control.

FIG. 18 is a flow chart of all culm injection control.

FIG. 19 is a flow chart for controlling a partition plate.

FIG. 20 is a flow chart of automatic selection control.

FIG. 21 is a graph showing fin positions and closing positions with respect to float sensor values.

FIG. 22 is a flow chart of continuously variable transmission control.

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Traveling machine 2 Pretreatment part 3 Threshing part 4 Sorting part 13 Stock transfer device 15 Threshing transfer device 16 Intermediate transfer device 18 Stock source feed chain 21 Handling room 21a Inlet 22 Auxiliary feed chain 26 Ear tip conveyor 29 Stock conveyor 44 Movable partition board 55 Sorting fin 60 Blocking plate 71 Control unit

Claims (1)

[Claims] 1. A pretreatment transfer device that conveys stalks of stalks scraped from a plurality of right and left scraping paths while merging the stalks, and the stalks transferred to the end of the pretreatment transfer device as a threshing part. An intermediate transfer device for sandwiching and transporting toward and a threshing transport device for sandwiching and transporting the stalks transported to the end portion of the intermediate transport device along the handling chamber are provided, and the intermediate transport device is provided on the transport end side. In a combine that is configured to be rotatable as a fulcrum, and the handling depth is adjusted based on a change in the stem-culm sandwiching position of the threshing transport device associated with the rotation, the intermediate transport device is provided with a deep handling side during normal work. It is configured to be rotatable to a position beyond the limit position and not to transfer the stem culms to the threshing conveyance device, and at the rotation position, all the stem culms conveyed to the end part of the intermediate conveyance device are thrown into the handling chamber. At this time, the intermediate transfer device turned to the all culm input position. The starting end and the end of the pre-treatment transfer device are separated in the stalk transfer direction to avoid interference between the transfer devices and to assist the transfer of stalks from the pre-processing transfer device to the intermediate transfer device. The auxiliary transporting device for arranging the auxiliary transporting device is arranged in parallel at the lower end position of the pretreatment transporting device, and the transporting start end of the auxiliary transporting device is positioned near the stem-culm confluence position of the pretreatment transporting device. Stem culm carrier device.