JPH1056862A - Grading device for threshing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grading device for threshing, capable of improving workability and grading precision by disposing an automatic mode control means for correcting the aperture of a chaff sieve on the basis of the amount of treated grains on a vibrating and grading board. SOLUTION: This grading device for threshing is provided with an automatic mode control means for setting the standard aperture of the chaff sieve 29 of a vibrating and grading board on the basis of the amount of discharged straws and for correcting the aperture of the chaff sieve on the basis of the amount of the treated grains on the vibrating and grading board. The grading device is preferably further provided with a reaping-finishing mode control means for increasing the aperture of the chaff sieve 29 at a reaping-finished time and with automatic mode-switching means 87, 89, 90, 91 for switching the automatic mode and the reaping-finishing mode.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing sorter in which, for example, grain that has been threshed in a combine handling room is sorted by a swinging sorter below the grain.

[0002]

Conventionally, the chaff sheave of the swinging sorter is linked to a straw conveying section such as a straw chain to automatically adjust the opening of the chaff sheave according to the amount of straw. . However, in this case, even if the amount of straw is the same, the amount of grain on the oscillating sorter differs depending on the material and the variety, so that the threshing accuracy varies.

[0003]

Therefore, according to the present invention, the reference opening of the chaff sheave of the swing sorting machine is set based on the amount of straw, and the opening of the chaff sheave is determined based on the grain processing amount on the swing sorting machine. Equipped with automatic mode control means to make corrections, it is possible to perform rocking sorting work properly corresponding to both the amount of straw and the amount of grain processed on the rocking sorter, and to increase the accuracy of this sorting work It is to improve.

[0004] The present invention is also provided with a cutting end mode control means for increasing the opening of the chaff sheave at the end of cutting to enable efficient sorting work without increasing grain loss at the end of cutting.

[0005] Further, a mode automatic switching means for switching between the automatic mode and the cutting end mode is provided, so that the trouble of switching the mode each time is not required, and the sorting accuracy is improved with good work efficiency.

[0006] Furthermore, a large degree of opening of the chaff sheave is provided to be maintained for a predetermined time to ensure post-processing in sorting after the end of mowing, thereby further improving the efficiency of this sorting work. It is.

[0007] Further, after the elapse of a predetermined time, the opening of the chaff sheave is provided so as to return to the state before the cutting end control. It is intended to improve the accuracy.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a control circuit diagram of the chaff sheave, FIG. 2 is an overall side view of the combine, and FIG.
In the figure, (1) is a track frame on which a traveling crawler (2) is mounted, (3) is a machine frame mounted on the track frame (1), (4) is a feed chain (5) which is stretched to the left and handled. A threshing unit incorporating a body (6) and a processing body (7);
(8) is a mowing section provided with a cutting blade (9) and a grain culm transport mechanism (10), (11) is a hydraulic cylinder that moves the mowing section (8) up and down through a mowing frame (12), and (13) is Straw processing unit facing the end of straw chain (14), (15)
Is a grain tank for bringing in the grains from the threshing unit (4) through a fryer (16), (17) is a discharge auger for carrying out the grains of the tank (15) outside the machine, and (18) is A driving cabin including a driving operation unit (19) and a driver's seat (20);
An engine (21) is provided below the driving cabin (18), and is configured to continuously cut and threat grain culms.

As shown in FIGS. 4 and 5, reference numeral (22) in the drawings denotes a handling chamber in which an axial-flow-type handling cylinder (6) suspended in the longitudinal direction of the fuselage is provided. Handling room (22)
(24) is a crimp net stretched below the handling chamber (22), and (25) is swingable in the front-rear direction with the front end facing the crimp net (24) below. (26) and (27) are feed pans before and after a sorter (25) disposed in two stages above and below the crimping net (24), and (28) is a front feed pan (26). )
(29) Sorting sieve line that can be swung up and down on the rear end side of
Is a chaff sheave continuously provided behind the rear end of the rear feed pan (27), (30) is a Glen sheave disposed below the chaff sheave (29), and (31) is a front and rear feed pan (26).
(27) a dust-feeding fan which is a pre-fan for sending a sorting wind between upper and lower sides; (32) is a main fan for sending a sorting wind between the chaff sheave (29) and the Glen sheave (30) and below the Glen sheave (30); Karino, a blowing device, (33) is the first conveyor that communicates with the fryer (16) to take out the grains into the grain tank (15), (34) is the second conveyor that reduces the second product (35). Through the sieve line (2) of the sorter (25)
8) A second conveyor returning upward, (36) is a suction / discharge fan disposed above the rear end of the sorting board (25),
The grains threshed by the handling cylinder (6) and the processing cylinder (7) are sorted by an oscillating sorter (25), and only the sized grains are taken out to the grain tank (15). 14)
And sent to the straw processing unit (13) through the straw cutter (3).
After cutting according to 7), it is configured to be discharged outside the machine.

As shown in FIG. 6 to FIG. 13, a chaff flavor (38) for adjusting the opening of the chaff sheave (29).
Each of the chaff wires (42) and the shutter wire (43) is connected to the dust sending fan (31) and the shutter lever (41) for adjusting the opening of the fan shutters (39) and (40) on the right side of the fan. The chain guide (44) of the straw chain (14) is interlocked with the chain guide (44). ) And the detection arm (47) are interlocked via the detection plate (46), and the arm shaft (4) is changed by the fluctuation of the chain guide (44).
8), the detection arm (47) swings to pull each wire (42) (43), and each lever shaft (4) is pulled.
9) The chaff and shutter levers (38) and (41) are rotated counterclockwise about (50) to increase the chaff opening of the chaff sheave (29) and the shutter (39).
Each fan (31) (32) closed by (40)
The right air inlets (51) and (52) are configured to have a large opening.

Further, the chaff flavor (38) is rotated counterclockwise about the lever shaft (49), and the lower movable plate (53) supporting the lower end of the left and right ends of the chaff sheave (29) is moved to thereby move the chaff sheave. When making the inclination angle of each horizontal member (54) constituting (29) large (standing), the opening degree of the chaff sheave (29) is increased to increase the amount of grain leakage, and each horizontal member (54) is increased. When the inclination angle of (2) is set to be small (to lie down), the opening degree of the chaff sheave (29) is made small to reduce the amount of grain leakage.

Further, a switching lever (55) that is rotatable about the lever shaft (49) by moving the outer (42a) of the chaff wire (42) on the side of the chabber (38).
The swing arm (59) and the switching wire (60) are supported at the tip of the piston rod (58a) of the opening adjusting cylinder (58) operated by the chaff opening motor (57) while supporting the outer receiving (56). The switching lever (55) via
When the switching lever (55) is swung about the lever shaft (49) by the forward and backward driving of the cylinder (58), the outer portion (42) of the chaff wire (42) is connected.
a) is moved to adjust the opening of the chaff sheave (29).

The levers (38) and (55) and the cylinder (58) are attached to base tables (62) and (63) fixed to the outer wall of the threshing side plate (61), respectively.
2) and the switching lever (55), and between the levers (38) and (5).
5) Return springs (64) and (65) are interposed between them, and an outer (60a) of the switching wire (60).
One end side of the base (62) and the outer (60a)
Mounting base (66) for fixing the other end of the base to the base base (63)
Attached to the outer receiver (67). And a bearing (69) of a bearing plate (68) fixedly mounted on the mounting base (66).
A swing arm (59) and an intermediate arm shaft (70) swingably supported, and one end of the swing arm (59) is connected to the other end of the wire (60). The other end of the arm (59) is connected to the piston rod (58).
a) and the piston rod (58a)
When moving back and forth, the wire (60) is pulled or loosened through the swing arm (59) to swing the switching lever (55). Incidentally, reference numeral (71) denotes a chaff position sensor for detecting the movement position of the chaff flavor (38).

A potentiometer type selection flow rate sensor (72) for detecting the grain layer thickness (a) on the sheave (29) is provided above the feed start end of the chaff sheave (29). The motor (57) is drive-controlled based on the increase and decrease of the opening to correct the opening of the chaff sheave (29) adjusted to the set opening.

In this case, even if an abnormality occurs in the flow sensor (72) and the chaff opening motor (57), the minimum and maximum opening of the chaff sheave (29) is regulated by the amount of straw, resulting in significant loss and sorting. A decrease in precision is prevented and work stability can be improved.

As shown in FIGS. 14 to 16, the flow rate sensor (72) is provided at the inlet side plate (74) of the dust outlet (73) of the processing cylinder (7) which is arranged on the right side and rearward of the handling cylinder (6). ), And 2nd of the second conveyor (34) in rear view.
No. 2 return outlet (7
5) The sensor base (7) is provided near the fixed mounting plate (76) of the side plate (73) via a bolt (77).
8) is mounted so as to be adjustable in the left-right position, and a gate-shaped meter mounting plate (80) on which a potentiometer (79) is fixed is vertically adjustable via a bolt (81).
8), the lower end of a side U-shaped detection plate (82) swingably fixed to the meter shaft (79a) of the potentiometer (79) is brought into contact with the layer thickness (a), The configuration is such that the magnitude change of (a) is detected by a potentiometer (79) via a detection plate (82).

The flow rate sensor (72) has the same function and effect when it is provided on the bottom plate (83) of the processing cylinder (7) in addition to the inlet side plate (74).

As shown in FIG. 17, the standard position of the opening of the chaff sheave (29) is switched depending on the variety of rice and wheat (corrected slightly to the closed side when wheat is selected). The standard position is offset depending on the material or branch spike (wet material is corrected to the open side and branch spike is corrected to the closed side). A selection adjustment dial (85) is provided on the operation panel (19a) of the operation unit (19). I have.

As shown in FIG. 1, a grain culm sensor (8) which is a switching means mounted on the back side of the grain culm raising case (86) of the mowing part (8) to detect the length of the grain culm to be cut.
7) and the work clutch lever (8) of the operation section (19).
8) A cutting switch (89), which is switching means for detecting the on / off state of the cutting clutch (not shown), and a cutting operation unit (19) provided in the operation operation unit (19) to raise the cutting unit (8) to a certain height by an automatic lift operation. The automatic clutch switch (9
0), a pouring switch (91) which is a switching means for switching the reaping unit (8) from a vehicle speed synchronization to a constant rotation drive, and a chaff outer sensor for detecting an operation position of a switching lever (55) by the adjusting cylinder (58). (92) a controller (94) provided on the transmission case of the machine to detect and connect the vehicle speed sensor (93), the chaff position sensor (71), and the flow rate sensor (72).
And a controller (94) connected to the motor drive circuit (95) of the chaff opening motor (57) for output control so as to control the drive of the motor (57).

By the way, as shown in FIGS. 22 to 24, a steering handle (96) and a main and auxiliary transmission lever (97) for performing a speed change operation of the traveling speed are provided on the driving operation section (19).
(98), a work clutch lever (88) for turning on and off the mowing and threshing clutches, a general display (99) for displaying work conditions such as vehicle speed and initial settings, and adjusting the vehicle height and the lateral inclination of the aircraft. Cross-type manual switch to operate (100)
Are provided on the left side column (101), and a pouring switch pedal (103) of the pouring switch (91) for maintaining constant rotation at a low speed of the reaper is provided on the right side of the cab (102).

The knob (9) of the main speed change lever (97)
7a) A handling depth adjustment switch (104) for adjusting the handling depth and a cutting elevation switch (105) for adjusting the cutting unit (8) up and down are provided on the left and right sides of the front, and a driver seat (20) for the knob (98). An auto-lift switch (106) for automatically turning off the cutting clutch when raising the cutting unit (8) to a certain height, and a cutting clutch when lowering the cutting unit (8) to a certain height. And an automatic set switch (107) for automatically turning on the main transmission lever (97).
4) It is configured to enable the operations (105), (106), and (107).

As shown in the flowchart of FIG. 18, the cutting switch (89) is on, the auto clutch switch (90) is off, the grain sensor (87) is on,
When the pouring switch (91) is on, the opening control of the chaff sheave (29) for moving the motor (57) to the target value in the automatic mode is performed, and at least one of the above-mentioned reaping switches is turned off and the auto clutch switch ( 9
When 0) is on, the culm sensor (87) is off, and the pouring switch (91) is off, the opening control of the chaff sheave (29) is performed in the cutting end processing mode. When an abnormal input signal is output from the motor driving circuit (95) during the control to the controller (94), the driving of the motor (57) is stopped.

FIG. 19 shows a flow chart of the automatic mode, in which the standard position of the opening of the chaff sheave (29) is switched (slightly closed side in the case of wheat) by the rice and wheat selector switch (84), and the sorting and adjustment are performed. The standard position is offset by the dial (85) (wet material is closed on the open side branch), and a correction amount calculated from a map based on the sensor value of the flow rate sensor (72) is further added thereto.
A control target value is calculated, and a fuzzy inference is made from the deviation between the control target value and the chaff outer sensor (92) (target value-sensor value) and the rate of change of the sensor (92) (previous sensor value-current sensor value). The drive output value of the motor (57) is calculated, the drive control of the motor (57) is performed in accordance with the output value, and the chaff sheave (29) is held at an appropriate opening. During the operation, the appropriate value of the amount of straw is added to the standard opening, and the opening control of the chaff sheave (29) is performed based on the increase or decrease in the amount of straw.

FIG. 20 is a flow chart of the cutting end processing mode, and FIG. 21 is a diagram showing an opening setting diagram, in which the off-auto clutch switch (9) of the cutting switch (89) is set.
In any of 0) on, off of the grain sensor (87), and off of the pouring switch (91), the control target value of the motor (57) is calculated from the chaff position sensor (71), and the chaff position is calculated. Based on the detection value of the sensor (71) as a target value before the cut-end processing mode, a target value of the cut-end processing mode is calculated based on the target value by adding a proportionality constant, and the cut-off is performed when the grain culm sensor (87) is turned off. When the control is started, a control waiting time (DELAY1) is calculated based on the vehicle speed, and then, when the control is started and the target value is reached, a holding time (DELAY2: constant time) for holding the target value is calculated. A target value is held for a time (DELAY2), a return time (DECAY) for slowly returning to the target value before the cutting end control is slowly calculated for a predetermined time after the holding, and a predetermined time (DECAY) is calculated.
Y) to return to the original target value.

As described above, in the cutting end processing mode, the grain processing amount of the chaff sheave (29) is reduced by making the target value of the opening larger than that in the automatic mode, so that the movement to the third mouth can be prevented. Even if it is promoted, it is intended to reduce the grain loss by making the state where the leakage of the grain is promoted.

[0026]

As is apparent from the above embodiment, the present invention sets the reference opening of the chaff sheave (29) of the swing sorter (25) based on the amount of straw and the swing sorter (2).
5) Since the apparatus has the automatic mode control means for correcting the opening degree of the chaff sheave based on the above-mentioned grain processing amount, it is possible to appropriately adjust both the amount of straw and the amount of grain processing on the swing sorter (25). This makes it possible to perform the corresponding swing sorting operation, thereby improving the accuracy of the sorting operation.

[0027] Further, since the cutting end mode control means for increasing the opening of the chaff sheave (29) at the end of cutting is provided, efficient sorting operation without increasing grain loss at the end of cutting can be performed. It is made to be.

Further, mode automatic switching means (87) (89) (90) for switching between the automatic mode and the cutting end mode.
Since (91) is provided, the troublesomeness of switching the mode each time is eliminated, and the sorting accuracy can be improved with good work efficiency.

Further, since the degree of opening of the chaff sheave is maintained for a predetermined time (DELAY2), the post-processing in the sorting after the end of mowing is ensured, and the efficiency of the sorting operation is further improved. Can be achieved.

Further, after the predetermined time (DELAY2) has elapsed, the opening of the chaff sheave before the cutting end control is returned to the original state. It is possible to improve the performance and the sorting accuracy.

[Brief description of the drawings]

FIG. 1 is a control circuit diagram.

FIG. 2 is an overall side view of the combine.

FIG. 3 is an overall plan view of the combine.

FIG. 4 is an explanatory sectional view of a threshing unit.

FIG. 5 is an explanatory side view of the swing sorter.

FIG. 6 is an explanatory diagram of a relationship between a chaff sheave portion and a shutter portion and a straw amount.

FIG. 7 is an explanatory side view of a chaff sheave and a shutter unit.

FIG. 8 is an explanatory diagram of a straw chain portion.

FIG. 9 is an explanatory side view of a chaff and a switching lever unit.

FIG. 10 is an explanatory diagram of an operation of a chaff and a switching lever unit.

FIG. 11 is an explanatory front view of a chaff opening adjustment section.

FIG. 12 is an explanatory diagram of the operation of the chaff opening degree adjustment unit.

FIG. 13 is an explanatory side view of a chaff opening adjustment section.

FIG. 14 is an explanatory cross-sectional view of the back of the threshing unit.

FIG. 15 is an explanatory diagram of a flow sensor.

FIG. 16 is an explanatory diagram of a flow sensor.

FIG. 17 is an explanatory diagram of a switch unit.

FIG. 18 is a flowchart.

FIG. 19 is a flowchart.

FIG. 20 is a flowchart.

FIG. 21 is a control diagram.

FIG. 22 is an explanatory plan view of a driving operation unit.

FIG. 23 is an explanatory front view of a main transmission lever.

FIG. 24 is an explanatory side view of a main speed change lever.

[Explanation of symbols]

 (25) Oscillating sorter (29) Chaff sheave (87) Grain sensor (switching means) (89) Cutting switch (switching means) (90) Auto clutch switch (switching means) (91) Pour-in switch (switching means) ( DELAY2) Time

Claims (5)

[Claims] 1. An automatic mode control means for setting a reference opening of a chaff sheave of a swing sorter based on a straw amount and correcting a chaff sheave opening based on a grain processing amount on the swing sorter. Threshing sorter, characterized in that: 2. The threshing sorter according to claim 1, further comprising a cut-end mode control means for increasing the opening of the chaff sheave at the end of the cut. 3. A mode automatic switching means for switching between an automatic mode and a cutting end mode.
A threshing sorter as described. 4. The threshing sorter according to claim 2, wherein a large opening of the chaff sheave is maintained for a predetermined time. 5. The threshing sorter according to claim 4, wherein the chaff sheave opening is returned to a value before the cutting end control after a predetermined time has elapsed.