JPH1056861A - Grading device for threshing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grading device for threshing, capable of accurately detecting the amount of treated grains on a vibration and grading board to control the aperture of a chaff sieve in high precision. SOLUTION: In this grading device for threshing, the aperture of the chaff sieve of a vibrating and grading board 25 is controlled by increasing or decreasing the amount of treated grains on the grading board 25. Therein, a flow rate sensor 72 for detecting the amount of the treated grains on the vibrating and grading board 25 is supported on the inlet side plate 74 of a treating cylinder 7 disposed behind a threshing cylinder 6 in parallel.

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 a set opening of a chaff sheave is corrected by, for example, an increase or decrease in a grain processing amount on an oscillating sorter to stably maintain sorting accuracy in the chaff sheave. Related to the device.

[0002]

As described above, in the sorting means, a contact-sensing type flow sensor for detecting the grain thickness of the grain is generally used as a sensor for detecting the grain throughput on the swinging sorter. However, when this flow sensor is directly supported by the swinging sorter, there is a problem that the flow sensor itself vibrates violently and the grain throughput cannot be accurately detected.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a threshing sorter which adjusts the opening of a chaff sheave of an oscillating sorter by increasing or decreasing the amount of grain processed on the sorter.
A flow rate sensor for detecting the grain throughput on the swing sorting machine is supported on the inlet side plate of the processing cylinder juxtaposed behind the handling cylinder, and a position near the entrance of the processing cylinder at which the grain throughput can be stably detected. In addition, a flow sensor is satisfactorily mounted in a stationary state to improve the detection accuracy.

In addition, a flow rate sensor is provided near the second reduction outlet for reducing the second processed material to the swinging sorting machine, and the detection of the grain processed amount appropriately corresponding to the reduction amount of the second processed material is performed. By making it possible, the detection accuracy is further improved.

Further, in a threshing sorter for adjusting the opening degree of the chaff sheave of the swing sorter by increasing or decreasing the grain throughput on the sorter, a flow sensor for detecting the grain throughput on the swing sorter. Is supported on the bottom plate of the processing cylinder arranged in parallel behind the handling cylinder, and the flow rate sensor is held stationary in the excess space below the processing cylinder for easy adjustment and inspection, thereby stably maintaining the detection accuracy.

[0006]

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 figures denotes a handling chamber in which an axial-flow-type handling cylinder (6) is mounted in the longitudinal direction of the fuselage. 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 FIGS. 6 to 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 around 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 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 an 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 respectively attached to base tables (62) and (63) fixed to the outer wall of the threshing side plate (61).
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 separation flow 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), and the grain amount on the chaff sheave (29) is provided. 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.

[0013] 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 waste 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 on the inlet side plate (74) of the dust outlet (73) of the processing cylinder (7) arranged right behind and behind 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 same effect can be obtained by providing the flow rate sensor (72) 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 according to 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 cereal culm sensor (87) attached to the rear side of the cereal stalk raising case (86) of the mowing part (8) to sense the length of the culm to be mown, A cutting switch (89) for detecting whether a cutting clutch (not shown) is turned on and off by a work clutch lever (88) of the operation section (19), and a cutting section (8) provided on the operation section (19) by an auto-lift operation. ) To a certain height, an automatic clutch switch (90) for disengaging the reaping clutch, a pouring switch (91) for switching the reaping section (8) from the vehicle speed tuning to a constant rotation drive, and the adjusting cylinder (58). A chaff outer sensor (92) for detecting an operation position of the switching lever (55), and a vehicle speed sensor (93) provided on a transmission case of the machine to detect a vehicle speed.
And the chaff position sensor (71) and the flow sensor (7
2), and a controller (94) is connected to the motor drive circuit (95) of the chaff opening degree motor (57) by an output.
The drive control of the motor (57) is performed.

As shown in FIGS. 22 to 24, the driving operation section (19) includes a steering handle (96) and main and auxiliary transmission levers (97) for shifting the running speed.
(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 shift 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 harvesting switch (89) is on, the auto clutch switch (90) is off, the grain culm 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 a cutting end processing mode, and FIG. 21 is a diagram showing an opening degree setting diagram, wherein an 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 opening target value larger than that in the automatic mode, and the movement to the third mouth is 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.

[0024]

As is apparent from the above embodiments, in the present invention, the opening degree of the chaff sheave (29) of the swinging sorter (25) is adjusted by increasing or decreasing the grain throughput on the sorter (25). In the threshing sorter, the rocking sorter (2)
5) The flow rate sensor (72) for detecting the grain processing amount above,
The inlet side plate (7) of the processing cylinder (7)
4) Since the flow rate sensor is supported at 4), the flow rate sensor is satisfactorily mounted in a stationary state at a position near the entrance of the processing cylinder (7) capable of stably detecting the grain throughput, thereby improving the detection accuracy. Can be done.

A flow sensor (7) is provided near the second reduction outlet (75) for reducing the second processed material to the swinging sorter (25).
Since 2) is provided, it is possible to detect the grain processing amount appropriately corresponding to the reduction amount of the second processed material, and it is possible to further improve the detection accuracy.

Further, in the threshing sorter for adjusting the opening degree of the chaff sheave (29) of the swing sorter (25) by increasing or decreasing the grain processing amount on the sorter (25), the swing sorter ( 25) A processing cylinder (7) in which a flow rate sensor (72) for detecting an upper grain processing amount is arranged in parallel behind the handling cylinder (6).
Since it is supported by the bottom plate part (83) of the processing cylinder (7), the flow rate sensor (72) can be stably held in the excess space below the processing cylinder (7) for easy adjustment and inspection, and the detection accuracy can be stably maintained. You can do it.

[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]

 (6) Handling cylinder (7) Processing cylinder (25) Swing sorting machine (29) Chaff sheave (72) Flow rate sensor (74) Inlet side plate (75) Reduction outlet (83) Bottom plate

Claims (3)

[Claims] 1. A threshing sorter for adjusting an opening degree of a chaff sheave of an oscillating sorter by increasing or decreasing a grain throughput on the sorter, wherein a flow rate sensor detects a grain throughput on the oscillating sorter. Characterized in that it is supported on the inlet side plate of the processing cylinder arranged side by side behind the handling cylinder. 2. A method of reducing the second processed material to a swinging sorter 2
The threshing sorter according to claim 1, wherein a flow rate sensor is provided near the number reduction outlet. 3. A threshing sorter for adjusting an opening degree of a chaff sheave of an oscillating sorter by increasing or decreasing an amount of cereal treatment on the sorter, wherein a flow rate sensor for detecting a cereal throughput on the oscillating sorter. A threshing sorter characterized by supporting a bottom plate portion of a processing cylinder juxtaposed behind a handling cylinder.