JP2009268417A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester easy to avoid such a defective grain sorting that grains are unloaded together with dust out of a machine body even if the amount of objects to be sorted in a swing separator is reduced. <P>SOLUTION: The combine harvester has a separation clutch 70 functioning to stop a swing separator 30 while bringing a threshing cylinder 23 into a drive state, and a separation control mechanism 86 functioning to switch the separation clutch 70 between an on-mode and an off-mode. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a combine.

In the combine, the harvested cereal husk is threshed by the handling cylinder, the processed material from the threshing part is sorted into grain and dust by a swinging and swinging device that can be driven and swung to collect the grain, and the dust is removed from the fuselage. Configured to drain out.
As this type of combine, there has been a combine described in Patent Document 1, for example. In the combine described in Patent Document 1, a threshing portion that threshs the harvested cereal meal from the reaping portion with a handling cylinder, and a sheave case that is driven to swing the processed product from the threshing portion (corresponding to a swing sorting device). And a sorting unit for sorting processing.
The combine described in Patent Document 1 controls a carp for supplying sorting air, an air volume adjusting plate provided at the exhaust outlet of the carp so as to adjust the air volume selected by the carp, and an electric motor linked to the air volume adjusting plate. And a control device for opening and closing the air volume adjusting plate.

JP 2001-238525 A (paragraphs [0012], [0013], [0028], [0029], FIGS. 2 and 7)

In this type of combine, when the amount of processed material in the swing sorter changes, a sorting failure in which dust is mixed into the grain or a sorting failure in which the grain is discharged together with dust is likely to occur. Even if the above-described conventional sorting wind adjustment is adopted, it may be difficult to avoid poor sorting.
In other words, when the amount of processed material in the oscillating sorter is reduced, dust and grains are lifted from the oscillating sorter when the processed product is oscillated and sorted even if the reduction of the sorting air volume is adjusted. By being easy to receive the sorting wind, the grains are easily discharged out of the machine body together with dust.

  An object of the present invention is to provide a combine that can more easily avoid the above-described sorting failure.

  The combine according to the first aspect of the present invention includes a selection clutch that stops the swing selection device while the handling cylinder is in a driving state, and a selection control means that switches the selection clutch between an on state and a cut state.

  According to the configuration of the first aspect of the present invention, when the sorting control means is operated artificially or automatically and the sorting clutch is switched to the on state, the swing sorting device is driven to subject the workpiece to the swing sorting. When the sorting clutch is switched to the disengaged state, the swing sorting device is stopped, and it is possible to avoid having the processed material undergo the swing sorting.

  Therefore, it is possible to cause the processed material to be subjected to rocking selection so as to prevent the dust from being mixed into the grain, or to perform the sorting process in which the grain is not easily discharged together with dust without causing the processed material to undergo rocking selection. It can also be made.

In this 2nd invention, it is equipped with the grain presence / absence detection means which detects the presence or absence of the grain presence of a cutting part,
When the reaping part is in the absence of the culm, the selection control unit automatically switches the selection clutch to the disengaged state based on information detected by the cereal presence / absence detection unit.

  When switching from work traveling to traveling traveling or turning traveling, cereal grains are not introduced into the mowing unit, and the amount of processed material supplied to the swing sorting device is reduced. In this case, according to the configuration of the second aspect of the present invention, the cereal presence / absence detection means is in a state where the cereal presence / absence detection means is detected, and the selection control means switches the selection clutch to the disengaged state based on detection information from the cereal presence / absence detection means. In addition, the processed product is not subjected to rocking selection.

  Therefore, when switching from work traveling to traveling traveling or turning traveling, a sorting process that does not cause the processed material to undergo rock sorting appears naturally, and the grain loss is reduced despite the decrease in the amount of processed material of the rocking sorting device. It is possible to travel while performing the avoiding sorting process.

The third aspect of the invention includes a sorting transmission that drives the swing sorting device at a variable speed, and a processed product amount detecting means that detects a processed product amount of the swing sorting device,
Detection information by the processing amount detection means so that the swing sorting device is driven at a high speed when the amount of processed material of the swing sorting device increases and the swing sorting device is driven at a low speed when the amount of processed material of the swing sorting device is decreased. Shift control means for shifting the sorting transmission device based on the above.

  According to the configuration of the third invention, when the processing amount of the swing sorting device increases, the swing sorting device is driven at a high speed by the shifting operation of the sorting transmission device by the shift control means based on the detection information by the processing amount detection means, The processed material is subjected to high-speed rocking sorting, so that the grain and dust are quickly sorted. On the other hand, when the processing amount of the swing sorting device decreases, the swing sorting device is driven at a low speed by the shift operation of the sorting transmission device by the shift control means based on the detection information by the processing amount detection means, and the processed product is slow. The grains are less likely to scatter when subjected to rocking selection.

  Therefore, even if the amount of processed material of the rocking sorter changes, high-speed rocking selection or low-speed rocking screening that is suitable for the amount of processed material will appear naturally, A sorting process in which the grains are difficult to be discharged together with dust can be performed.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is an overall side view of a combine according to an embodiment of the present invention. FIG. 2 is an overall plan view of the combine according to the embodiment of the present invention. As shown in these drawings, the combine according to the embodiment of the present invention is configured to be self-propelled by a pair of left and right crawler traveling devices 1, 1, and has a driving unit having an engine 2, A self-propelled aircraft equipped with a driving unit having a driver's seat 3 provided, a cutting unit 10 connected to the front part of the fuselage frame 4 of the self-propelled aircraft, and a rear side of the fuselage frame 4 A threshing device 20 and a grain tank 5 provided side by side in the machine body are provided.

This combine harvests rice and wheat.
That is, in the cutting unit 10, the cutting unit frame 11 is operated to swing up and down with respect to the body frame 4, so that the weeding tool 12 positioned side by side in the lateral direction of the self-propelled body is located at the front of the cutting unit 10. The ascending / descending operation is performed between a descending working state located near the ground and an ascending non-working state in which the weeding tool 12 is elevated from the ground.

  When the cutting unit 10 is in the descending work state and the self-propelled machine is traveling, the cutting unit 10 introduces the planted cereals into the corresponding pulling device 13 by each weeding tool 12 and causes the processing to occur. The planted culm raised and processed by the cutting device 13 is cut by the clipper-shaped reaping device 14, and the chopped cereal is supplied to the threshing device 20 by the supply device 15. The threshing device 20 threshs the harvested cereal, and the grain tank 5 collects and stores the threshing grains from the threshing device 20.

  FIG. 3 is a longitudinal side view of the threshing apparatus 20. As shown in this figure, the threshing apparatus 20 includes a threshing section A having a handling chamber 22 provided in the upper part of the threshing machine body 21 and a handling cylinder 23 provided in the handling chamber 22 so as to be driven to rotate. And a sorting section B having a swing sorting device 30 provided below the handling chamber 22.

  As shown in FIG. 3, the threshing section A includes the handling chamber 22 and the handling drum 23, a receiving net 24 provided along the handling drum 23 at the lower portion of the handling chamber 22, and a threshing machine body 21. And a threshing feed chain 25 provided to be able to be driven outside, and the stocker side of the harvested cereal from the supply device 15 is sandwiched by the threshing feed chain 25 and conveyed to the rear side of the threshing machine body, and the tip side is Supplied to the handling chamber 22, the tip side supplied to the handling chamber 22 is threshed by the handling action of the handling cylinder 23 and the catching net 24, and threshing processed products such as threshing grains are dropped from the catching net 24, The straw is discharged from the dust feed port 26 located at the rear of the handling chamber 22 by the threshing feed chain 25. The threshing waste straw discharged from the handling chamber 22 is transported to the rear part of the threshing machine body by the waste straw transporter 27 and discharged from the outlet 28 to the outside of the threshing machine body.

  The processing rotator 29 that is rotatably driven behind the dust feed port 26 reprocesses the threshing processed product from the dust feed port 26 to take out the grain.

  As shown in FIG. 3, the sorting unit B includes the swing sorting device 30, a red pepper 31 provided below the front end side of the swing sorting device 30, and an upper end side of the swing sorting device 30. And a threshing processing product that has fallen from the receiving net 24 is received by a swing sorting device 30, and a grain pan 33, a chaff sheave 34, a stroll rack 35, and a grain sheave 36 provided in the swing sorting device 30. And the sorting wind supplied to the rear of the threshing machine by the Kara 31 to sort the grains and dust, drop the grains from the shaking sorting device 30, and remove the dust to the dust exhaust fan 32. Then, the air is sucked together with the sorting wind and discharged from the outlet 332a of the dust exhaust fan 32 to the outside of the threshing machine body, or discharged together with the sorting wind from the dust outlet 37 at the rear of the threshing machine body.

  The first processed product of the grains dropped from the swing sorting device 30 is received by the first screw conveyor 38 and carried out of the threshing machine body, and by a cerealing apparatus (not shown) located outside the threshing machine body. Supplied to the grain tank 5. The second processed product of the grains dropped from the swing sorting device 30 is received by the second screw conveyor 39 and carried out of the threshing machine body, and threshed by a reduction device (not shown) located outside the threshing machine body. It is transported to a reduction port (not shown) located on the lateral side wall of the machine body 21, put into the threshing machine body from this reduction port, and returned to the starting end side of the swing sorting device 30.

  The sorting section B supplies auxiliary sorting air by the rotary fan 31a located in front of the Kara 31 and the rotary fan 31b located between the first screw conveyor 38 and the second screw conveyor 39.

  FIG. 4 is a diagram of a transmission device that transmits the driving force of the engine 2 to the crawler traveling device 1, the mowing unit 10, and the threshing device 20. As shown in this figure, the transmission device transmits the driving force of the output shaft 2a of the engine 2 to the input shaft 41a of the traveling mission 41 via the belt transmission mechanism 40, and the driving force of the input shaft 41a is transmitted to the driving shaft 41a. It is distributed and transmitted to a pair of left and right crawler traveling devices 1 and 1 by a traveling mission 41. The traveling mission 41 includes a hydrostatic continuously variable transmission 42 having the input shaft 41a as a pump shaft, and the driving force from the engine 2 is driven forward and backward by the hydrostatic continuously variable transmission 42. Converted into force and transmitted to the pair of left and right crawler travel devices 1, 1.

  The transmission device transmits the driving force of the output shaft 2a of the engine 2 to the input shaft 44a of the cutting transmission device 44 by the transmission belt 43, and the driving force of the output shaft 44b of the cutting transmission device 44 is transmitted to the gear transmission mechanism 45. Is transmitted to the input shaft 16 of the reaping unit 10 via. The mowing transmission 44 is a hydrostatic continuously variable transmission.

  The transmission device transmits the driving force of the output shaft 2a of the engine 2 to the input shaft 47a of the transmission case 47 via the threshing clutch 46 formed of a belt tension clutch, and the driving force of the threshing output shaft 47b of the transmission case 47. Is transmitted to the rotary spindle 23a of the barrel 23 by the transmission belt 48.

  The transmission device transmits the driving force of the sorting output shaft 47 c of the transmission case 47 to the tang 31 by the transmission belt 49, and the driving force of the sorting output shaft 47 c is transmitted to the first screw conveyor 38 by the transmission belt 50. To do.

  The transmission device transmits the driving force of the first screw conveyor 38 to the second screw conveyor 39 via a transmission belt 51 and a gear transmission mechanism 52, and the driving force of the first screw conveyor 38 is transmitted to the transmission belt. 51 and the gear transmission mechanism 53 are transmitted to the dust exhaust fan 32, and the driving force of the dust exhaust fan 32 is transmitted to the threshing feed chain 25 via the gear transmission mechanism 54.

  The transmission device transmits the driving force of the first screw conveyor 38 to the drive shaft 80 of the swing sorting device 30 through the transmission belt 51, the sorting transmission device 60 and the sorting clutch 70.

  As shown in FIG. 5, a main body portion 80 a of the drive shaft 80 located in the threshing machine body is rotatably connected to a support arm 81 extending from the rear end portion of the swing sorting device 30. A shaft end portion 80b protruding out of the threshing machine body from the lateral wall 21a of the threshing machine body 21 is rotatably supported by the lateral wall 21a via a shaft support member 82. The rotation axis of the main body portion 80a of the drive shaft 80 with respect to the support arm 81 is eccentric with respect to the rotation axis P1 of the shaft end portion 80b with respect to the threshing machine body 21. The drive shaft 80 is rotationally driven around the rotational axis P1 of the shaft end portion 80b by the driving force transmitted from the transmission belt 51, thereby rotating the main body portion 80a around the rotational axis P1. The swing sorting device 30 is driven to swing.

  FIG. 5 shows a longitudinal sectional structure of the selective transmission 60. FIG. 6 is a side view of the selective transmission 60. As shown in these drawings, the selective transmission 60 includes an input-side pulley 62 provided on the other end side of a transmission shaft 61 around which the transmission belt 51 is wound on one end side, and a drive shaft. 80, an output-side pulley 63 supported rotatably on the shaft end portion 80b, and a transmission belt 64 wound around the output-side pulley 63 and the input-side pulley 62, and the output-side pulley 63. Is configured as a split pulley.

  The selection transmission device 60 is provided between a transmission arm 65 that is rotatably supported by a movable half pulley 63a of the output pulley 63, and a base portion of the transmission arm 65 and the shaft support member 82. A cam mechanism 66, a screw type operating mechanism 67 having an operating piece 67a engaged with the speed change arm 65, and an electric motor 68 linked to a feed screw shaft 67b of the screw type operating mechanism 67.

  That is, the selection transmission 60 inputs the driving force of the transmission shaft 61 driven by the transmission belt 51 to the input side pulley 62 and transmits the driving force of the input side pulley 62 to the output side pulley 63 by the transmission belt 64. The swing sorting device 30 is driven by outputting to the sorting clutch 70 from the lever 63 on the output side and transmitting to the drive shaft 80 via the sorting clutch 70. The sorting transmission device 60 changes the driving speed of the swing sorting device 30 when the electric motor 68 is driven.

  That is, when the electric motor 68 is driven, the screw-type operation mechanism 67 operates to move the operation piece 67a along the feed screw shaft 67b by rotating the feed screw shaft 67b by the electric motor 68. Then, the speed change arm 65 is swung around the rotation axis P1 by the operation piece 67a. When the speed change arm 65 is swung, the movable cam 66a of the cam mechanism 66 rotates together with the speed change arm 65 and rotates relative to the fixed cam 66b fixed to the shaft support member 82 of the cam mechanism 66. . As a result, the shift arm 65 is operated to move the movable-side half pulley 63a closer to or away from the fixed-side half pulley 63b, and the belt winding diameter of the output-side pulley 63 changes and the output-side pulley 63a changes. The drive rotation speed of the pulley 63 changes.

  FIG. 5 shows a longitudinal structure of the selection clutch 70. As shown in the figure, the selection clutch 70 includes a clutch body 71 engaged with a shaft end portion 80b of the drive shaft 80 by a spline structure so as to be integrally rotated and slidable. An engagement type clutch main body 72 provided between the fixed-side half pulley 63b of the transmission 60 is provided.

  The selection clutch 70 is interlocked with the operating body 73 engaged with the clutch body 71 so as to be relatively rotatable, a feed screw shaft 74 screwed into the female thread portion 73a of the operating body 73, and the feed screw shaft 74. The electric motor 75 (refer FIG. 4) is provided, and when this electric motor 75 is drive-operated, it switches to an on state and a cut-off state.

  In other words, when the electric motor 75 is driven to the entry side, the feed screw shaft 74 is rotated by the electric motor 75 to move the operation body 73 to the entry side. Then, the clutch body 71 is moved toward the half pulley 63b to switch the clutch body 72 to the engaged state. As a result, the sorting clutch 70 enters an engaged state so as to transmit the driving force of the output side pulley 63 of the sorting transmission 60 to the drive shaft 80 via the clutch main body 72 and the clutch body 71. To drive.

  When the electric motor 75 is driven to the cutting side, the feed screw shaft 74 is rotated by the electric motor 75 to move the operating body 73 to the cutting side. Then, the clutch body 71 is operated to move away from the half pulley 63b, and the clutch body 72 is switched to the disengaged state. As a result, the sorting clutch 70 is turned off so that transmission from the output pulley 63 of the sorting transmission 60 to the drive shaft 80 is cut off, and the swing sorting device 30 is stopped.

  The sorting clutch 70 is located on the lower transmission side with respect to the transmission shaft 61, and stops the swing sorting device 30 while the handling cylinder 23, the tang 31 and the threshing feed chain 25 are driven.

  As shown in FIG. 4, the electric motor 75 of the selection clutch 70 and the electric motor 68 of the selection transmission 60 are linked to a control device 85. The control device 85 is configured using a microcomputer, and constitutes sorting control means 86 and shift control means 87.

  The selection control means 86 is linked to the electric motor 75 of the selection clutch 70 and the grain presence / absence detection means 88 for detecting the presence / absence of grain presence in the cutting unit 10, and is detected by the grain presence / absence detection means 88. The electric motor 75 is operated based on the information and the setting information by the delay time setting means 89 configured by the storage unit of the control device 85. The processing parts are sorted in such a way that the dust is hardly mixed into the grains, and when moving or turning, the grains are discharged out of the machine body together with dust even if the amount of processed material of the swing sorting device 30 is small. To prevent that.

  That is, the grain stalk presence / absence detection means 88 is configured by a contact-type stock element sensor provided in the supply device 15 of the reaping part 10, and for the stock source of the harvested cereal grain conveyed by the supply device 15. When it comes into contact, it is detected that the reaping part 10 is in a cereal bud presence state, and when it is in a non-contact state with respect to the cereal, it is detected that the reaping part 10 is in a cereal absence state

  In other words, the chopsticks are introduced into the reaper 10 when the work travels, and the reaper 10 enters the cereal presence state, and the reapers are not introduced into the reaper 10 during the traveling movement or turning. The part 10 becomes a cereal absence state. Thereby, it can be judged that it is in the working travel state by detecting the culm presence state of the reaping part 10, and when it is in the traveling state or turning state by detecting that the reaping part 10 is in the cereal absence state. I can judge.

  The sorting control unit 86 determines whether the cutting unit 10 has been switched to the cereal absence state or the cereal presence state based on the detection information from the cereal presence / absence detection unit 88. When the selection control unit 86 determines that the cutting unit 10 has been switched to the cereal absence state, the selection motor 86 switches the electric motor 75 to the clutch release side based on the determination result and the set delay time t by the delay time setting unit 89. The swing sorting device 30 is stopped after the set delay time t has elapsed since the cutting unit 10 is switched to the absence state of the culm.

  When the selection control unit 86 determines that the cutting unit 10 has been switched to the cereal presence state, based on the determination result, the electric motor 75 is immediately operated to the clutch engagement side to drive the swing selection device 30. .

  The delay time setting means 89 sets, as the set delay time t, a transport time necessary for transporting the harvested cereals from the part where the cereal scum presence / absence detecting means 88 of the reaping part 10 is located to the handling chamber 22. Yes.

  The shift control means 87 is linked to the electric motor 68 of the sorting transmission device 60 and the processed product amount detecting means 90 for detecting the processed product amount of the swing sorting device 30. The processed product amount detecting means 90 (FIG. 3). ), The electric motor 68 is operated on the basis of the setting information by the reference processing amount setting means 91 formed by the storage unit of the control device 85, and the processing amount of the swing sorting device 30 changes. In addition, it is possible to perform a sorting process in which dust is hardly mixed into the grain and the grain is not easily discharged out of the machine body together with the dust.

  That is, the processed material amount detecting means 90 is constituted by a contact-type bulk sensor provided at the start end of the chaff sheave 34 of the rocking sorter 30 as shown in FIG. 3, and the processed material supplied to the chaff sheave 34 and The contact height of the processed material of the chaff sheave 34 is detected as the amount of processed material in the swing sorting device 30.

  The shift control means 87 determines that the processed quantity of the swing sorting device 30 is based on the detection information by the processed quantity detection means 90 and the set reference processed quantity w by the reference processed quantity setting means 91 based on the set reference processed quantity w. Judgment is also made on whether the number has increased or decreased. When the shift control means 87 determines that the processed amount of the swing sorting device 30 is larger than the set reference processed amount w, the shift control device 87 operates the electric motor 68 to the high speed side to shift the selection transmission device 30 to the high speed side. Then, the swing sorting device 30 is driven at a high speed. The shift control means 87 increases the drive speed of the swing sorting device 30 as the processed material amount of the swing sorting device 30 is larger than the set reference processed amount w.

  When the shift control means 87 determines that the processed amount of the swing sorting device 30 is smaller than the set reference processed amount w, the shift control device 87 operates the electric motor 68 to the low speed side to shift the selection transmission device 60 to the low speed side. Operate and drive the swing sorter 30 at a low speed. The shift control means 87 lowers the drive speed of the swing sorting device 30 as the processed amount of the swing sorting device 30 is smaller than the set reference processed amount w.

As shown in FIGS. 1 and 2, the self-propelled machine body includes a support device 95 for a swing sorting device provided at the rear part of the machine body frame 4.
As shown in FIG. 9, the support device 95 includes a support column 96 erected on the body frame 4, and a support arm 98 that is swingably supported by a support portion 96 a of the support column 96 via a connecting shaft 97. The base arm 98 a of the support arm 98 and a gas damper 99 connected to the support column 96 are provided.

  The support arm 98 includes the proximal end side arm 98a, a distal end side arm 98b supported by the proximal end side arm 98a so as to be slidable and extendable, and a hook 98c provided at the distal end portion of the distal end side arm 98b. Yes.

FIG. 7 is a rear view showing the extraction procedure of the swing sorting device 30. FIG. 8 is a plan view showing how to take out the swing sorting device 30. As shown in these drawings, the hook 98c of the support arm 98 is locked to the drive shaft 80 of the swing sorting device 30, and the swing sorting device 30 is removed from the threshing machine body 21 while maintaining this locked state. Pull out backward.
Then, the support device 95 swings the threshing machine body rearward about the machine shaft vertical axis of the connecting shaft 97 while extending the support arm 98 as the swing sorting device 30 is pulled out from the threshing machine body. To go.
That is, the support device 95 supports the suspension sorting device 30 that is pulled out from the threshing machine body 21 by the support arm 98 so that the weight balance in the left-right direction of the machine body can be easily achieved. In addition, the pulling-out operation of the swing sorting device 30 is lightened.

[Another Example]
Instead of the above-described embodiment, a configuration in which the selection clutch 70 is artificially switched between the on state and the off state may be employed. In this case, the object of the present invention can be achieved.

Combine side view Overall plan view of combine Longitudinal side view of threshing device Transmission system diagram Vertical section of sorting gearbox and sorting clutch Side view of sorting transmission Rear view showing how to remove the swing sorter Top view showing how to take out the swing sorter

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Mowing part 23 Handling cylinder 30 Oscillating sorting device 60 Sorting transmission device 70 Sorting clutch 86 Sorting control means 87 Shift control means 88 Grain scum presence / absence detection means 90 Processed amount detection means

Claims (3)

  A combiner comprising: a selection clutch for stopping the swinging selection device while driving the handle cylinder; and a selection control means for switching the selection clutch between the on state and the off state. A cereal presence / absence detecting means for detecting the presence / absence of cereal presence in the cutting part
The said selection control means is comprised so that the said selection clutch may be automatically switched to a cutting | disconnection state based on the detection information by the said corn husk presence detection means, if the said cutting part becomes a cereal absence state. Combine. A sorting transmission for shifting the swing sorting device, and a processing amount detecting means for detecting a processing amount of the swing sorting device;
Detection information by the processing amount detection means so that the swing sorting device is driven at a high speed when the amount of processed material of the swing sorting device increases and the swing sorting device is driven at a low speed when the amount of processed material of the swing sorting device is decreased. The combine according to claim 1 or 2, further comprising a shift control means for shifting the sorting transmission device based on the speed.

Images