JP2741165B2 - Threshing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing device for a combine or the like.
About the installation. [0002] 2. Description of the Related Art A threshing device is a threshing process using a harvested grain culm by a handling cylinder.
And sorts it out with a rocking sorter to take out the granules.
is there. The swing sorter is a swing sorter, chaff sieve,
It consists of low rack etc. and was sorted by the specific gravity on the rocking sorter
Passing the grain through the gap between the fins of the chaff sieve
It is further sorted by. Recently, the tilt angle of the fins of the chaff sheave
(Called fin angle)Can be changed, and threshing amount
Corresponding to the chaff sieveFin angle, in other wordsFi
Threshing equipment that improves the sorting accuracy by changing the gap between
Is being developed. For example, Japanese Utility Model Laid-Open No. 59-14534
Is linked to the vehicle speedAnd depending on the type of grainChaffShi
BeaveFinsangleTechnology for automatically adjusting
You. [0004] [Problems to be solved by the invention]The publication of the above publication
Technology, the angle of chaff sieve according to the type of rice and wheat grains
Adjustment range of the vehicle speed from low speed to high speed
In response, 35 ° to 45 ° during rice harvesting, and during wheat harvesting
Was adjusted in the range of 25 ° to 35 °. [0005]However, the fin angle must be adjusted according to the vehicle speed.
When performed automatically, the kernels are usually dry,
Adjust the fin angle based on the dry material
However, depending on the weather or field conditions, etc.
Because the amount is different and the leakiness is also different,
Making an automatic adjustment is not appropriate, especiallyGrain is wet
If it isIsChaffSheaveGrain adheres toRaw, clogged
SometimesBugButthere were. The present invention has been made to solve such a problem.
AndGrain type when fin angle is automatically adjusted
Set upper and lower limits of automatic adjustment range of fin angle according to
Within this range, the fin angle depends on the vehicle speed.
Adjust the degree to the large side or small side, and the grain is wet material
Is specified, the file is compared to the case where it is not specified.
Clogging by setting the lower limit of the
Prevent,Providing threshing equipment that greatly improves sorting accuracy
With the goal. [0007] The threshing apparatus according to the present invention
Is the threshing device mounted on the traveling aircraft
Means for specifying the type of grain and the grain to be threshed
Means to specify that the material is wet, and the specified grain seed
Kindas well asAutomatically adjusts the fin angle of the chaff sheave based on the vehicle speed.
Fin angle automatic adjusting means for dynamic adjustment.
The automatic angle adjustment means,Wheat or rice as the type of grain
If specifiedIs the type of grain specifiedAccording to the fin angle
DegreeSet the upper and lower limits of the automatic adjustment range, and within the range
When the vehicle speed increases, the fin angle increases,
When the vehicle speed decreases, adjust the fin angle to the smaller side.
Along withIf the grain is designated as wetToIsNot specified
Compared to whenFin angleLower limit ofChanged to large side
It is characterized in that it is configured to perform. [Action]In the present invention, the fin angle automatic adjusting means is
Above and below the automatic adjustment range of the fin angle according to the type of grain
Limit value, and within this range,
Adjust the fin angle to the large side or the small side.
The fin angle of the chaff sheave to the large side compared to dry wood
The change will cause the grain to stick to the chaff sieve,
Can be prevented from occurring. [0008] BRIEF DESCRIPTION OF THE DRAWINGS FIG.
A description will be given below. FIG. 1 is equipped with a threshing apparatus according to the present invention.
It is an external appearance perspective view of a harvester. In FIG.
A threshing device mounted on the upper part of the fuselage above the roller 1
There is a weeding rod 4, a cutting blade 2, and a raising device
Cereal harvested by the reaping unit G composed of the storage 7 and the like
Threshing is performed through the upper and lower conveyors, not shown, for culms.
The grain is supplied to the apparatus 3 and threshed.
Is sent to link 5. Reference numeral 9 in the figure is provided in front of the driver's seat 8.
The operation column 10 is a vertical conveying device, the end of which is a grain conveying device.
At the beginning of the feed chain 12 of the culm transfer device 11
In this area, the feeding of grain stalks to threshing equipment was detected.
A cereal stalk sensor 6 for informing is provided. Cereal stem
The sensor 6 is not limited to this position.
At the side of the starting end or in the transport path of the vertical transport device 10 or the like
And a harvester equipped with an automatic depth adjustment device.
Is shared with sensors provided for detecting culm length
It may be configured. Grain stalk clamping and transferring device 11
And a thrust rod 13
It is provided along the opening of the storage 3. FIG. 2 is a partially broken longitudinal sectional view of the threshing apparatus 3.
You. The threshing device 3 includes a handling room 15 formed in an upper part of the casing 14.
Inside, a handling cylinder 17 having a large number of handling teeth 16, 16,.
When the handle is extended in parallel with the axial direction of the handle cylinder 17,
At the lower part of the handling room 15, a receiving net 18 is stretched.
The lower part of the handling chamber 15 is substantially parallel to the axial direction of the handling cylinder 17.
The swing sorting device 19 is provided. In addition,
In the upper right position (near the center of the aircraft), re-
A processing chamber 50 for processing is provided.
In the chamber 50, its axial direction is the same as the axial direction of the cylinder 17.
The processing cylinder 51 having a large number of teeth 52, 52,.
Axle mounted. The swing sorting device 19 is a swing extending inclining.
A sorter 20 and a lower portion of the swinging sorter 20 at a lower rear portion thereof.
A variable angle type chaff sheave 21 described later,
From the straw rack 22 connected to the back of the sheave 21
It is a swing arm that swings in conjunction with the drive source.
Swinging in the axial direction of the handling cylinder 17 by the arms 23 and 24
It is configured as follows. In addition, one below the swing sorting device 19
The first grain consisting of the second-most grain plate 25 and the first screw 26
Take-out part (first mouth) 27, second-level grain plate 28 and second tray
A second grain take-out section (second exit) 30 consisting of a lew 29
And forming a sorting air passage 31 having the same. The grains that have fallen to the first grain take-out section 27
It is sent from the screw 26 to the paddy tank 5 and the second grain
The grain that has fallen into the material take-out section 30 from the second screw 29
Blower 47 blows up the inside of the second lower cylinder 48
And protrudes from the roof plate of the threshing unit 3 above the processing chamber 50.
Dropped from the processing drum cover 53 onto the processing drum 51
It is being sorted. To the second screw 29
Is a second rotation sensor for detecting the rotation speed of the screw 29.
A cover 69 is provided.
The second sensor 60 for detecting the amount of the second reductant returned to the body
Is provided. An air passage 31 is provided below the chaff sheave 21.
A grain sheave 32 is provided on the
A Karamin device 33 is provided on the blast side. And this Karamin
The airflow from the device 33 is rectified by the rectifying plates 34 and 35.
After passing through the air duct 31, the dust outlet at the rear of the aircraft (No. 3)
It is configured so that air is exhausted from the outside of the machine. A shaft is provided above and behind the straw rack 22.
While providing a suction and exhaust device 37 using a flow fan,
An upper suction cover 38 is provided above the suction / discharge device 37,
The lower suction cover 39 is disposed in the
The suction port 40 of the device 37 is opened to the air passage 31 side, and
The exhaust port 41 is opened toward the exhaust port 36. Said
Above the upper suction cover 38, the air flows obliquely upward from both ends.
Lower gutter, that is, fourth gutter 43 is extended to form fourth gutter 44
Then, the culm after threshing, that is, the stinging grain taken out from the straw
It is configured to return to the upper part of the straw rack 22.
You. FIG. 3 shows a view with some of the chaff sheaves.
It is sectional drawing of the periphery of an angle change operation lever. Chaff sieve
Reference numeral 21 denotes a rectangular frame member extending in the longitudinal direction of the fuselage.
Between the left and right frame members (not shown)
A large number of fins 21b are arranged side by side in the front-rear direction,
Is pivoted to. The lower part of each fin 21b extends in the front-rear direction.
Are respectively supported by one adjusting connecting rod 21c.
The middle of the rotating shaft 21d is pivotally supported at the front part of the articulated link 21c.
ing. The rotating shaft 21d is located above the adjusting connecting rod 21c.
At the top of which a tension spring 21e is provided.
The front end is locked. The other end of the tension spring 21e is a threshing room
Locked in place. The lower end of the rotating shaft 21d is
One end of the push-pull wire 21f is locked.
The other end of the push-pull wire 21f is a threshing device on the side of the driver's seat 8.
Attached to the base end of an operation lever 71 provided on the front of
The pivot piece 72 is pivotally supported. Accordingly, the pulling operation of the push-pull wire 21f is performed.
By operation, the lower part of the rotating rod 21d is rotated backward and adjusted
The connecting rod 21c moves rearward, and the fins 21b stand upright.
In angle (angle between the fin 21b and the adjusting connecting rod 21c)
M increases, and the gap between the fins 21b increases. one
On the other hand, when the push-pull wire 21f is pressed,
The lower part of d is rotated forward, and the adjusting connecting rod 21c is moved forward.
The fin 21b tilts, the fin angle becomes small,
The gap between the fins 21b becomes smaller. The operating lever 71 is located on the front right side of the threshing device 3.
Is provided and can be operated by a worker sitting in the driver's seat 8.
It has become so. Operation level on the front of the threshing device 3
An operation panel 70 is attached to the side of the cover 71,
On the rear surface of the platen 70, a U-shaped frame with a front opening is open.
Arm 77 is mounted on the side of the frame 77.
The work lever 71 is pivotally supported. The front of the operation lever 71 is
Projecting forward through a long hole formed in the
The lower end of the rectangular turning piece 72 is fixed to the base end thereof.
And the above-mentioned push-pull wire 21f
Is locked at one end. A rotating shaft is provided at the front of the frame 77 in the vertical direction.
75 is mounted on the shaft.
The feed member 76 is fixed at both ends and an intermediate portion as appropriate.
Have been. Also, the lower end of the rotating shaft 75 is
It projects downward, and this projection is
Is inserted inside. This gear box 74 has its output
It is mounted on the motor 73 with the
The driving force of the motor 73 is transmitted to the rotating shaft 75 by
The feed member 76 rotates. The aforementioned
The operation lever 71 is rotated by an appropriate method (not shown).
And is engaged between the spirals of the feed member 76.
It is supposed to be. Accordingly, the motor 73 is driven to drive the feed member 7
6 rotates, the operation lever 71 turns into a spiral of the feed member 76.
It is sent to move up and down, and the operation lever
71 is manually disengaged from the spiral of the feed member 76.
It is also possible to operate. Operation lever 71 is manual
Alternatively, the reverse rotation (or forward rotation) of the motor 73 causes the solid line in FIG.
Is rotated in the direction shown by the broken line).
The ear 21f is pulled (or pressed) and the fin 21b is raised.
Standing (or tilting), the gap between the fins is large (or small).
). A potentiometer is provided at the proximal pivot of the operating lever 71.
A lever position detection sensor 78 using a meter is provided.
The voltage corresponding to the rotation position of the operation lever 71,
A voltage corresponding to the fin angle is output from the sensor 78.
You. FIG. 4 is a main part of a harvester equipped with the apparatus of the present invention.
It is an electronic circuit diagram. In the figure, 80 is a microcomputer.
A control device using a CPU 81, a RAM 8
2, ROM 83, input interface 84, output in
Interface 85. Input interface
Input port a in the base 84₀Change the aircraft speed
Provided at the base end of the vehicle speed lever for
Vehicle speed sensor using a potentiometer that outputs potential
The output of 58 is digitally converted by an A / D converter 59
From the output of the A / D converter 59, the vehicle speed
Are classified into three stages: high speed, medium speed, and low speed. The input port of the input interface 84
Toa₁The detection signal of the second sensor 60 is an A / D converter
At 61, it is converted into a digital signal and input. Entering
Power port a_TwoThe fin angle of the aforementioned chaff sheave 21
Provided at the base end of the operation lever 71 for changing the degree
The output of the lever position detection sensor 78 using the
It is converted into a digital signal by the / D converter 62 and input.
ing. Input port a_TwoWith the threshing clutch engaged
Threshing switch 63 that is turned on when
And the input port a_ThreeBut
High level. Input port a_FourThe reaping clutch
The harvesting switch 64 which is turned on when the state is set is connected.
Input port a when the harvesting switch 64 is turned on.
_FourBecomes high level. Input port a_FiveThe chafushi
Automatically turned on when the fin angle of the
The automatic switch 65 is connected.
Turns on the input port a_FiveBecomes high level. input
Port a₆In the case where the grain to be threshed is rice or wheat
The grain changeover switch 66, which is switched according to the condition, is connected
In the case of wheat, the input port a₆The high level
Switch 66 is turned on. Input port a₇The grain to be threshed is dry
Dry-wet cutting that is switched according to whether the material is wet or wet
Switch 67 is connected.
Port a₇Switch 67 is turned on to set
Is done. Input port a₈The culm to the threshing equipment mentioned above
Is connected to a grain culm sensor 6 for detecting the transport of
When the culm sensor 6 detects the conveyance of the grain culm, the input port a₈
Becomes high level. Input port a₉The switch times
The output of the path 68 is provided, and the switch circuit 68
Turns on and off with the output of the second rotation sensor 69, and rotates second
The sensor 69 detects the low rotation of the second screw 29 and
When the output of the sensor 69 becomes high level, the switch circuit 68
Turns on and input port a₉Becomes high level. Also
The output of the switch circuit 68 is connected to a body grounded at one end.
Photodiode (LED) 99 is provided. Output port b of output interface 85
₁Is connected to a switch circuit 68.
When the circuit 68 is turned on, the light emitting diode 91 is turned on.
The output port b₁Indicates that the control device 80 is not operating normally.
Output a high-level signal when the
As a result, the light emitting diode 91 is turned on. Output port b
_TwoIs connected to a switch circuit 87.
When the switch 87 is turned on, the light emitting diode 92 is turned on.
You. The output port b_TwoIndicates that each sensor and switch
Output a high-level signal when not
The light emitting diode 92 is turned on by the high level signal.
Light up. Output port b_ThreeIs connected to the switch circuit 88.
When the switch circuit 88 is turned on, the automatic
The lamp 93 lights up. The output port b_ThreeIs chaff sieve
Automatic switch 65 for automatic fin angle adjustment of 21
Output a high-level signal when the
, The automatic lamp 93 is turned on. Out
Power port b_FourIs connected to a switch circuit 89,
When the switch circuit 89 is turned on, the exciting coil 9 of the electromagnetic relay 94 is turned on.
4c is excited. This electromagnetic relay 94 is linked normally open.
A contact 94a and a normally closed contact 94b;
Tilts the power supply line and the fins 21b of the chaff sheave 21.
One end of the motor 73 for driving the operation lever 71 to be tilted and raised
(The terminal which becomes high voltage when the motor 73 is reversed)
The normally closed contact 94b is provided between the motor 7
3 between the same terminal and the body ground. The
Output port b_FourTilts the fins 21b of the chaff sheave 21
High level when tilting down (when reducing the fin angle)
Output the signal of the Output port b_FiveHas a switch circuit 90
Connected, and when the switch circuit 90 is turned on,
The exciting coil 95c of the relay 95 is excited. This electromagnetic
９５95 is an interlocking normally open contact 95a and normally closed contact 95b.
The normally open contact 95a is connected to the power supply line and the other end of the motor 73.
(The terminal which becomes high voltage when the motor 73 is rotated forward) and
The normally closed contact 94b is provided between the motor 7
3 between the same terminal and the body ground. The
Output port b_FiveRaises the fins 21b of the chaff sheave 21.
High level when standing (when increasing the fin angle)
Output the signal of the Therefore, the output port b_FourBecomes high level
And the exciting coil 94c of the electromagnetic relay 94 is excited.
When the open contact 94a is closed, the motor 73 rotates in the reverse direction, and the output port
B_FiveExcitation coil of electromagnetic relay 95 when becomes high level
95c is excited, its normally open contact 95a is closed, and
The tab 73 is driven to rotate forward. Output port b₆The switch
Switch circuit 96 is connected.
The alarm buzzer 97 sounds by the power on, and the light emitting diode 9
8 lights up. The output port b₆As described below.
The fin angle of the sheath 21 is within the control range in the automatic adjustment.
Even if the upper limit or lower limit is reached, the amount of the second reduced product is within the predetermined range.
Outputs a high-level signal when it does not. The operation of the harvester having such a configuration will be described.
You. If you want to adjust the fin angle manually,
The switch 65 is turned off, and the operating lever 71 is operated to
When the lever 71 is disengaged from the member 76 and the lever 71 is rotated,
The push-pull wire 21f is pulled or pressed, and the fin
21b stands or tilts, fin angle is large or small
Become. The aircraft is driven in such a state to harvest and
And threshing, the stalks cut off by the cutting section G
The grain is transported to the grain stalk-clamping transfer device 11 of the grain device 3. Grain stem
The cereal stem inherited by the banding transfer device 11 has its tip side removed.
It is inserted into the handling room 15 from the opening of the grain device 3 and is driven to rotate.
Threshing by the teeth 16 of the cylinder 17
Grains, such as grains that have been threshed, pass through the receiving net 18.
After passing through and falling on the swinging sorting device 19, the shaking of the device 19 is performed.
Specific gravity selection is performed by the
21b, the first thing such as fine granules that have passed through the gap between
Falls to the extraction section 27 first, and the second reduct and the third
Blow on straw rack 22 with the wind blasted by Minoh device 33
The straw rack 22
Drops on the upper part and swings the straw rack 22
Re-sorting is performed while being crushed. The second reductants such as cut ears and spikes are two
Drop into the 30th grain take-out section 30 and
It is blown up inside the second lower cylinder 48 by the lower 47.
It is sorted again by the processing cylinder 51. The relatively large straw waste
Interference of the prevention cloth 42 due to the wind sent from the Karamin device 33
Transferred to the rear while receiving
On the other hand, the relatively light contaminants are sucked by the suction and exhaust device 37.
The air is sucked from the inlet 40 and discharged out of the machine through the air outlet 41.
You. Next, the fin angle of the chaff
The automatic adjustment is based on the flowcharts of FIGS.
Will be described. First, when you turn on the key switch,
Alarm counter B indicating that the buzzer 97 has sounded
Z, a reaping flag K indicating a reaping operation state, and
Reset all the cutting start flags D indicating that it is time to start cutting.
(D = 0), and further corresponds to the grain to be threshed.
And set each condition. FIG. 6 is a flowchart for explaining the operation of the condition setting control.
It is a low chart. In condition setting control, first
Depending on the state of the grain changeover switch 66, the grain to be threshed is rice.
Or wheat. And the grain switching switch
In the case of rice with the switch 66 turned off, the
Set the upper limit αi for rice as the upper limit α of the positive range
As the lower limit β, the lower limit βi in rice is
Set. Furthermore, the fins 21 in the chaff sieve 21
The upper limit value of the control range during the automatic adjustment of the angle b (max.
As the value L, an upper limit value Li for rice is set. Next, the rice to be threshed is set to the wet / dry changeover switch 6
Judge whether the material is dry material or wet material according to the condition of 7.
When the wet change switch 67 is turned on for wet material,
Lower limit of the control range during automatic adjustment of the angle of the motor 21b
(Minimum value) Set the lower limit value Sis of wet material in rice as S.
The dry material when the wet / dry switch 67 is turned off.
At the same time, a lower limit value Sik of dry wood in rice is set. Further, according to the vehicle speed detected by the vehicle speed sensor 58,
The fin angle set at the start of automatic adjustment.
change. That is, when the vehicle speed is high,
In the case of medium speed, the value Mik for rice is
Is set to Mih, and Mit is set for low speed. On the other hand, when the grain selection switch 66 is turned off,
In the case of wheat, conditions are set in the same way, and
As the upper limit α of the positive range, the upper limit αm in wheat is
The lower limit βm in wheat is set as the limit β, respectively.
And the upper limit value L of the control range of the fin angle during automatic adjustment.
Then, the upper limit value Lm for wheat is set. Then threshing
Automatic adjustment depending on whether the elephant wheat is dry or wet
The lower limit value S of the control range of the fin angle at the time
You. That is, in the case of dry material with the wet / dry change switch 67 turned off.
Is the lower limit value Smk of dry wood in wheat as the lower limit value S.
Of the wet material when the wet / dry switch 67 is turned on.
In this case, the lower limit value Sms of the wet material in wheat is set. Thus, the upper and lower limits of the fin angle are set.
The reason is as follows. That is, the basics of fin angle control
Is the upper and lower limit, where the amount of the second reductant is determined by the grain
to be within α and β, but depending on the situation
Or, depending on the malfunction of the control system,
Excessive control that can only be considered abnormal with control based on detection results
Alternatively, the fin angle may be too small. Something like this
To prevent defective sorting or clogging.
I am trying to do it. According to the set vehicle speed
The fin angle set at the start of automatic adjustment
Change the value. That is, in the case of high speed,
Set the value Mit in the low speed state at
Set the value Mmh at
The speed Mmt is set respectively. As described above, each set value is set between rice and wheat, dry wood and wet
The amount of secondary reductant in rice differs
The relationship between the upper and lower set values αm and βm of the appropriate range is α
i <αm and βi <βm. If this is wheat
Stalk breakage is more likely to occur than in the case of rice, and the amount of secondary reduced products
The upper and lower limits of the appropriate range of
This is because it is necessary to increase the amount of
To reduce the amount of reductant to the chaff sieve 21
Sorting with less culm in the first thing
Improving accuracy. Control of the fin angle during automatic adjustment
Set the upper and lower limits of the range for rice and wheat.
The lower limit is set for rice and wheat.
The upper limit set value is L
i> Lm, lower limit set value is Sis> Sik> Sms> Smk
ing. This is because rice has lower leakage of chaff sieve than wheat.
The fins are poor because wet materials are less leaky than dry materials.
When the corner becomes smaller, dust accumulates on the chaff sheave and clogs it.
Fin angle in the case of rice.
Overall control range larger than that in wheat
And the control range for wet materials is better than that for dry materials.
Is also enlarged. Further, the fins set at the beginning of mowing
The set value of the corner is also different between rice and wheat,
Also, this setting value differs depending on the vehicle speed.
And high speed values are greater than wheat and low speed values, respectively.
Mik> Mih> Mit> Mmh> Mmt
ing. This is the second most common case of wheat, because it has many broken stems.
It is necessary to increase the amount of reductant, and in the case of rice, it is leaky
At the start of automatic adjustment in the case of rice because of poor quality
Larger fin angle than in wheat to reduce sorting accuracy
It is necessary to improve the leakage property by
When the vehicle speed is high, the grain flow increases and
The amount of reductant also increases, and at low speed the grain flow rate is low.
At high speed,
The fin angle at the start of automatic adjustment
Set the fin angle at the start of adjustment larger than that at low speed
And increase the sorting accuracy so that the amount of secondary reductant does not become too large.
This is because it is necessary to lower it. After setting such conditions, as shown in FIG.
The control device 80 determines whether or not the mowing operation has been started.
Judging by the flag D, the cutting start flag D is reset
If (D = 0), the mowing operation has not yet started
As a best practice, save the stored value P of the fin angle at the beginning of cutting.
The fin angle is stored as M. Fins in such a state
Turn on the automatic switch 65 to automatically adjust the angle,
The threshing clutch is disengaged to drive the grain device 3
When the grain switch 63 is turned on, the control device 80 first
The motor 73 is continuously driven forward so that the
Move the fin angle to the detection value p of the lever position detection sensor 78.
If the lower limit S is reached, the motor 73 is driven.
Stop motion. The aircraft is driven in such a state to cut
When the work and threshing work are started, the cut culm is
3 and the cereal culm sensor 6 is turned on,
The lamp 93 lights up to indicate that automatic adjustment can be performed.
I do. Then, the cutting clutch is in the engaged state, that is, the cutting switch.
Switch 64 is on, and the cutting flag K is
In the reset state (K = 0), the predetermined time T₁Between
Sorting is performed with the fin angle being the smallest high-precision sorting state.
The predetermined time T₁Wait for the fin angle to elapse before
Motor 73 so that the fin angle at the start of cutting
Drives continuously in reverse. And the lever position detection sensor 7
It is detected that the fin angle has become M by the detection value p of 8
Then, the driving of the motor 73 is stopped, and the mowing operation is started.
Flag K indicating that it is set (K = 1)
And This is usually the amount of threshing at the start of the threshing operation.
The amount of the second reduced product is unstable because the
This is because the detection result of the sensor 60 is extremely unstable.
Automatically adjusts the fin angle based on unstable detection conditions such as
This means that the sorting accuracy is significantly reduced,
After a predetermined time T₁Automatically adjusts the fin angle
At the lowest limit of the control range, that is, the state with the highest sorting accuracy
At the predetermined time T when the threshing amount is stable₁After
Immediately after setting the fin angle to M,
Control of the fin angle around the state of the fin angle M
Corresponding to the amount of the second reduced product based on the detection result of the sensor 60
By intermittently driving the fins 21b.
ing. On the other hand, the automatic switch 65 and the threshing switch 6
Non-working state with 3 turned off or manual fin angle
In the adjustment state, the automatic lamp 93 is turned off, and
In the working state where both switches 65 and 63 are turned on, the grain
Automatic ramp when culm sensor 6 does not detect grain culm
93 flashes and the fin angle is automatically adjusted.
The motor 73 is continuously driven to set the lower limit S,
b is set to the most inclined high sorting accuracy state,
It is in a state where it can be sent. Next, the second reduced product captured by the second sensor 60
The control of the fin angle based on the amount is based on the flowchart of FIG.
A description will be given below. First, whether the buzzer 97 has already sounded
Check with the alarm counter BZ.
The buzzer 97 in the set state (BZ = 0) is still sounded
The lever position detection sensor 78
Enter the fin angle detection value p corresponding to the lever position to be detected.
Read as the guesswork P. Then, catch the second sensor 60
The amount of the second reductant is properly sorted at the chaff sieve 21.
The upper limit α or less (or the lower limit β or less)
Is the upper limit L of the control range when the fin angle is automatically adjusted
(Or lower limit value S or less), lever position detection
Judging from the detection value p of the sensor 78, the upper limit L (or the lower limit
When the value is not S) (1) (corresponding to FIGS. 7 and 8)
The same reference numerals are used to designate portions where the motor 73 is used.
Reverse (or forward) over time to set the fin angle
The quantitative Δp is increased (or decreased) to reduce the gap between the fins 21b.
Large (small), increasing the amount of grains and the like passing through the gap
(Or decrease) to reduce the amount of grain to the second grain take-out unit 30
Reduce (or increase) (2). When such control is performed, the cutting start
D is set (D = 1), alarm counter BZ is reset
In the reset state (BZ = 0). When this motor 73 is short
The second reduced product also depends on the fin angle change Δp
If the amount does not fall within the predetermined range (α to β),
The fin angle again by Δp
Until the second reductate amount falls within the specified range.
73 is driven intermittently. In this case, the motor 73 is driven for a predetermined time.
Thus, the fin angle changes by Δp, and the amount of the second reduced product is
If it is within the predetermined range, the motor 73 is not driven, and the fin angle
Is not changed, but the detection value of the lever position detection sensor 78 is
p is from the motor drive despite the drive of the motor 73
Matches the expected fin angle (P + Δp or P−Δp)
The fin angle has not been changed.
If the fin angle has changed (3),
The fin angle has been changed by operating the operating lever 71
A predetermined manual holding control shown in FIG. 8 is performed. FIG. 8 is a flowchart for explaining the operation of the manual holding control.
This is a flowchart in which the operation lever 71 is manually operated.
If it is determined that the operation amount has been
Judging from the detection value p of the position detection sensor 78, the fin angle is
Exceeds fin angle control range (S to L) during automatic adjustment
Investigate whether or not it is working (4, 5). And the fin angle
Is within the range of automatic adjustment (S ≦ p ≦ L)
Is a predetermined time T for giving priority to the manual operation state._FourThe hand
The state of the dynamically operated fin angle is maintained (6), and thereafter,
The cutting start flag D is set (D = 1), and an alarm is issued.
Set the counter BZ to the reset state (BZ = 0)
｛(8), see Fig. 7 自動 Automatic adjustment based on the amount of second reduced product
To resume. On the other hand, the fin angle is
Is smaller than (or above) the lower limit value S of the control range in automatic adjustment.
Is larger than the limit value L), the manual operation state is
A predetermined time T_FiveThis manually operated file
(7), and then the motor 73 is shortened.
Reverse (or forward) rotation for a predetermined time to increase the fin angle
(Or decrease), and after driving such a motor 73,
If the fin angle is not within the specified range,
Increase (or decrease) the fin angle, and eventually the fin angle is intermittent
By increasing (or decreasing) the fin angle automatically,
Within the control range (S to L) in dynamic adjustment, such a state
, The cutting start flag D is set (D = 1) and an alarm
Set the counter BZ to the reset state (BZ = 0)
(8) Restart the automatic adjustment based on the amount of the second reduced product. The predetermined time T in this case_FiveThe manual operation described above
The change of the fin angle by the operation is within the control range of the automatic adjustment (S ~
L) The predetermined time T when_FourSet longer than
In some cases, T_Four= T_FiveOr T_Four> T_Five
It may be. Such a configuration is based on the amount of cut culm,
When operated manually for temporary changes in the original material
Priority is given to the manual operation, and the state is maintained for a predetermined time.
To deal with the temporary change, and then the second reductant
By returning to automatic adjustment based on volume,
It is intended to improve. Also for manual operation
When the fin angle is out of the control range of automatic adjustment
In, the fin angle is automatically adjusted after a predetermined time has elapsed.
Control range, and then return to automatic adjustment.
This prevents runaway when restarting automatic adjustment. On the other hand, when the amount of the second reduced product is within an appropriate range (α to
β) instead of intermittent driving of the motor 73 by automatic adjustment.
Does not fall within the appropriate range (α-β)
In this case, the motor 73 has a fin angle equal to the upper limit L of the control range.
(Or intermittent drive until the lower limit S is reached) (9),
See FIG. Then, the fin angle becomes the upper limit L of the control range (or
Is the highest sorting accuracy at the time of automatic adjustment to the lower limit S)
Is low (or high), the alarm counter BZ
Measures the duration of the upper (or lower) fin angle state
Then, the count is updated to "1" at regular intervals (10).
The chaff sieve 21 sorts in such a state,
The count content of the counter BZ is T_TwoWithin a predetermined time until
In addition, the amount of the second reductant does not fall within the appropriate
Limit (or lower limit) state continues for this predetermined time
The buzzer 97 sounds and the light emitting diode 98
It is lit (11). This is because the amount of the second reduced product is not within the proper range.
And the fin angle of the chaff sheave 21
As the upper or lower limit of the control range, the amount of the second reduced product is within the appropriate range
Sorting, but this condition continues for a predetermined time.
If the amount of the second reduced product does not fall within the appropriate range,
This is an abnormal condition where the chaff sheave is clogged, etc.
Automatic adjustment of the fin angle within a predetermined range on the sheath 21
Section argues that the amount of second reductant is not within the
The LED 97 is turned on while the 97 is sounded.
To notify the driver that an abnormality has occurred.
Things. As described above, the buzzer 97 sounds and emits sound.
When the photodiode 98 is turned on, the wet / dry change switch 67
From the off state to the on state, that is, from the dry material setting to the wet material setting.
Or from the on state to the off state, that is, from the wet material setting to the dry material
When the setting is changed or the grain changeover switch 66 is turned off.
From the off state to the on state, i.e. from rice setting to wheat setting or off.
From the on-state to the off-state, ie, from wheat to rice setting
And the set value in the condition setting control described above is changed
Therefore, the upper and lower limits of the appropriate range for the amount of
Because the upper and lower set values of the fin angle are changed respectively,
The sounding of the LED 97 and the lighting of the light emitting diode 98 are stopped.
Thus, the fin angle is changed corresponding to each set value. And
Proper amount of second reductant even after fin angle is changed
If it does not enter the state, the buzzer 97 sounds again
In both cases, the light emitting diode 98 is turned on. This is achieved by using the wet / dry selector 67 or the grain
If the grain selector switch 66 is not operated properly,
The selection is not performed and an alarm is issued.
If you notice an erroneous operation of one of the switches and operate it correctly
In this case, stop the alarm and change each setting condition.
The amount of the second reductant does not reach the proper state even after
A warning is issued again. On the other hand,
The driver operates by sounding 97 and lighting the light emitting diode 98
Knows that the amount of second reductant is abnormally high (or low).
The operation lever 71 is automatically adjusted to resolve this abnormality immediately.
The upper limit value L of the control range at the time of moderation (or the lower limit value S or less)
Lower (or higher) fin angle by pivoting down
Accuracy. With this operation, the buzzer 97 stops sounding.
At the same time, the light emitting diode 98 is turned off (1
2) Further, while maintaining the manually operated fin angle state,
Immediately reduce the amount of reduced product to an appropriate range. And the second reduced product
If the amount falls within the appropriate range (α to β), the predetermined time T
₆The manually operated fin angle state is maintained over (1
3) Then, the motor 73 is rotated forward (or reverse) for a short predetermined time.
) Drive to reduce (or increase) the fin angle by a predetermined amount.
(14) Even by driving the motor 73 for such a short time,
Fin angle does not fall within the control range of automatic adjustment (LS)
In this case, the motor 73 is driven again for a short time, and
Mode until the turning angle falls within the automatic adjustment control range (LS).
Drive 73 intermittently. And the fin angle is automatically adjusted.
When it is within the control range (LS), the automatic adjustment control is restarted.
After that, as described above, the fuel is
The fin angle is adjusted intermittently. During such work, the second grain take-out unit
The amount of the second reductant falling to 30 increases, and the second screw
-29 is overloaded and its speed is lower than the specified value.
When the second rotation sensor 69 captures what has been done,
The automatic adjustment of the fin angle of the chaff sheave 21 is prohibited.
The lamp 93 is turned off to control the fin angle automatically.
The motor 73 is continuously rotated in reverse so that the upper limit value L of the
Increase the amount of grain that passes between the fins 21b
By increasing the amount of grains falling to the extraction unit 27,
To reduce the amount of second reductant that falls to the
You. In this case, when the second screw 29 is overloaded
The detected value p of the fin angle at the point is stored as a stored value P
When the overload is removed, the fin angle must be
In this state, the fin angle is automatically adjusted
U. At the end of the harvesting operation in one stroke,
The stalk sensor 6 does not exist and the stalk sensor 6 is turned off.
At the end of the picking operation, the threshing amount should be
And the amount of the second reduced product is also unstable.
If the fin angle is controlled based on this, the sorting accuracy will be extremely low
Prohibit automatic adjustment based on the amount of second reductant
When the lamp 93 is turned on and the grain sensor 6 is turned off.
The detected value p of the fin angle at the point is stored as the stored value P
And a predetermined time T_ThreeLater fins of chaff sieve 21
The motor is adjusted so that the angle becomes the lower limit value S of the control range of the automatic adjustment.
73 is continuously driven so that the fin 21b is tilted most.
State, that is, sorting with the highest precision
I have. At this time, the cutting flag K is reset (K = 0).
It is said. Then, the harvesting work of one stroke is completed, and the next stroke is completed.
When the harvesting work is started again, the grain stem
A predetermined time T detected by the satellite 6 and the grain flow rate is small₁Is
For grain sorting by chaff sieve 21, the fin angle is lower limit S
Is performed as a high sorting accuracy state,
₁After the lapse, the fin angle is recorded at the end of the aforementioned cutting.
Fin angle based on the amount of the second reduced product
Automatic control of is resumed. Therefore, the start of cutting in one stroke
At the beginning, sorting is performed with high sorting accuracy at first
After a predetermined time, the fin angle in the previous stroke
Continuous fin angle to be the final fin angle during automatic adjustment
The automatic adjustment is resumed in this state. On the other hand, in the harvester having such a configuration,
When performing threshing work by hand without performing work,
Automatic angle adjustment will be described. Automatic adjustment of fin angle
Turn on the automatic switch 65 to turn on the threshing clutch
When the threshing switch 63 is turned on in the engaged state,
The fin angle of the chaff sheave 21 is the same as in the harvesting operation described above.
Becomes smaller and the sorting accuracy is the highest. Heel
The culm to be threshed into the handling room 15
Then, the grain stalk sensor 6 is turned on. In this case, manual threshing
Therefore, the mowing clutch is disengaged and the mowing
Since the switch 64 is in the off state, the fin angle is set to the standard state.
Automatic adjustment of the fin angle immediately
In the automatic adjustment, the state of the fin angle where the sorting accuracy is high
Automatically adjusted around this fin angle condition
Is done. Subsequent automatic adjustment is automatically performed during harvesting as described above.
It is the same as dynamic adjustment, so that the amount of the second reduced product becomes a predetermined value.
The fin 21b is driven intermittently. In the above-described embodiment, the file
Angle is automatically adjusted based on the amount of the second reductant.
However, instead of this, the highest flow rate, the third flow rate,
A configuration that automatically adjusts based on the amount of processed material etc.
May be. [0060] According to the present invention, the type of grainIn response to the
Determine the upper and lower limits of the automatic fin angle adjustment range, and
The fin angle is large or small depending on the speed of the vehicle in the enclosure.
In the case of wheat, culm is mixed in the first grain
AndSorting accuracy decreasedAnd in the case of rice,Without leaking
The problem that the 3rd loss increases due to stagnation has been resolvedTo
In addition to the effect,The grain is wetSpecifiedPlace
CombinationOf the chaff sieve compared to if not specified
Is the lower limit of the fin angle changed to the larger side?
The fin angle just before the grain is designated as wet
If the value is below the lower limit of the large value to be changed,
By setting to the lower limit of
If the vehicle speed is low,
It is a wet material by keeping the angle at the lower limit of the large sideGrain
ChaffSheaveIt is difficult to leak because it remains attached to
InconvenienceToCan be preventedExcellent
It works.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external perspective view of a harvester equipped with the device of the present invention. FIG. 2 is a longitudinal sectional view of the device of the present invention. FIG. 3 is a side view of a main part of the chaff sheave and a periphery of an operation lever. FIG. 4 is a main part electronic circuit diagram of a harvester equipped with the device of the present invention. FIG. 5 is a flowchart for explaining the operation. FIG. 6 is a flowchart for explaining the operation. FIG. 7 is a flowchart for explaining the operation. FIG. 8 is a flowchart for explaining the operation. [Description of Signs] 3 Threshing device 6 Grain culm sensor 11 Grain culm transfer device 17 Handle cylinder 21 Chaff sheave 21b Fin 27 First grain takeout section 29 Second screw 30 Second grain takeout section 50 Processing chamber 51 Processing cylinder 58 Vehicle speed Sensor 60 Second sensor 63 Threshing switch 64 Harvest switch 65 Automatic switch 66 Grain switch 67 Dry / wet switch 69 Second rotation sensor 71 Operation lever 73 Motor 76 Feed member 78 Lever position detection sensor 80 Control device 97 Buzzer

   ────────────────────────────────────────────────── ─── Continuation of front page    (72) Inventor Toshiki Hirano               1-32 Chaya-cho, Kita-ku, Osaka Yanmar Agriculture               Machine Co., Ltd.                (56) References JP-A-57-8709 (JP, A)                 JP-A-55-34085 (JP, A)                 Shokai Sho 59-14534 (JP, U)                 Japanese Utility Model Showa 54-130062 (JP, U)

Claims (1)

(57) [Claims] In a threshing device mounted on a traveling machine, a means for designating the type of grain to be threshed, a means for designating that the grain to be threshed is a wet material, the type and the vehicle speed of the designated grain Automatic fin angle adjusting means for automatically adjusting the angle of the fin of the chaff sheave based on the, the fin angle automatic adjusting means , when wheat or rice is specified as the type of grain, the type of the specified grain Set the upper and lower limits of the automatic fin angle adjustment range according to the
When the vehicle speed increases, the fin angle increases,
When the vehicle speed decreases, adjust the fin angle to the smaller side.
Rutotomoni, Do is specified when the grain is specified as wet material
A threshing apparatus characterized in that the lower limit value of the fin angle is changed to a larger side as compared with a case where the threshing is performed.