JPH1023827A - Grading device for threshing work - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grading device for threshing works, capable of improving the grading accuracy of the oscillating grading device having chaff sieves. SOLUTION: In this grading device used for threshing works and having the first conveyer 33 for discharging graded grains below the chaff sieves 29 of a vibration grading board 25, a grading starting time-setting means for temporarily closing the chaff sieves 29 at the start time of a threshing work and subsequently opening the chaff sieves to prescribed positions is disposed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, a method of sorting grains that have been threshed in a combine handling room with a swinging sorter below the same, and swinging the sorted grains (sized) into a swing sorter. The present invention relates to a threshing sorter that takes out to a grain tank by a lowermost conveyor.

[0002]

Conventionally, there is no means for driving each threshing unit such as a rocking sorter by turning on a threshing clutch, in which the chaff sheave has a constant opening degree from the beginning. For example, there is an inconvenience that, for example, waste rice remaining on the chaff sheave leaks from the chaff sheave at the start of threshing work and mixes into the sorted grain of the first conveyor, thereby lowering the sorting accuracy. Further, in mounting the opening / closing control device for opening / closing the chaff sheave on the main unit side, the number of mounting bolts is large and cannot be easily performed.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a threshing sorter having a first conveyor for taking out sorted kernels below a chaff sheave of an oscillating sorter, wherein the chaff sheave is temporarily closed at the start of threshing operation. Side,
A sorting initial setting means for opening to the set position is provided,
The purpose of the present invention is to prevent waste rice, straw waste, and the like remaining in the handling room and chaff sieve at the start of threshing work from being mixed into the sorted grains of the first conveyor, thereby stably maintaining the sorting accuracy.

Further, an opening / closing control device for controlling the opening / closing of the chaff sheave is provided with a one-touch type mounting means for detachably attaching to the main body side, thereby making the opening / closing control device for the chaff sheave integrated with the main body side for convenient handling. This makes it possible to easily attach or detach the control device, thereby simplifying maintenance and inspection work of the control device.

[0005]

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, which is a threshing machine incorporating a body (6) and a processing cylinder (7), (8) is a cutting blade (9) and a grain culm transport mechanism (1)
0) and the like, and a cutting section (11) is a cutting frame (1).
2) a hydraulic cylinder for raising and lowering the reaping unit (8) via
(13) is a straw processing unit that faces the end of the straw chain (14), and (15) is a crushing cylinder (1) for transferring the grains from the threshing unit (4).
6) a grain tank carried in through (6); (17) a discharge auger for carrying out the grains in the tank (15) out of the machine;
8) is a driving cabin provided with a driving operation unit (19) and a driver's seat (20), and (21) is an engine provided below the driving cabin (18), which is configured to continuously cut and threat grain culms. doing.

As shown in FIGS. 4 and 5, reference numeral (22) in the drawing 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 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 (29). 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 chaff (38).
At the end of a piston rod (58a) of an opening adjustment cylinder (58), which is an opening / closing control device operated by a chaff opening motor (57), which is a sorting initial setting means. The switching lever (55) is interlockingly connected via an arm (59) and a switching wire (60), and the switching lever (55) is swung about a lever shaft (49) by the forward and backward driving of the cylinder (58). At this time, the opening of the chaff sheave (29) is adjusted by moving the outer (42a) of the chaff wire (42).

The levers (38) and (55) and the cylinder (58) are mounted on 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)
Is attached to an outer receiver (67) of a mounting base (66) which is a one-touch type mounting means for fixing the other end of the base to a base base (63). The swing arm (59) is attached to a bearing (69) of a bearing plate (68) fixed to the mounting base (66).
An intermediate arm shaft (70) is swingably supported, and the wire (60) is connected to one end of a swing arm (59).
The other end of the piston rod (58a) is connected to the other end of the swing arm (59).
When the piston rod (58a) is moved forward and backward, the wire (60) is pulled or loosened via the swing arm (59) to swing the switching lever (55). Reference numeral (71) denotes a chaff opening sensor for detecting the movement position of the chaff flavor (38).

A potentiometer type selective grain quantity 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 drive of the motor (57) is controlled based on the increase or decrease of the grain amount of the chaff sheave (29) in which the opening degree is adjusted by the increase or decrease of the amount of straw.
Is configured to perform the opening degree correction. The grain amount sensor (72) is attached to a support stay (25a) that traverses in the left-right direction between the left and right side plates of the sorting board (25) so that the left-right position can be adjusted.

[0012] In this case, even if an abnormality occurs in the grain quantity 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 and marked loss. In addition, it is possible to prevent a decrease in sorting accuracy and improve the stability of the work, and when the wind power is reduced mechanically such as when the aircraft turns, the motor (5) is used.
7) keeps the opening of the chaff sheave (29) on the open side, thereby preventing an increase in grain loss. In other words, when the aircraft turns, the amount of straw is reduced, resulting in the chaff sheave (2
9) is closed or Karino (32) is adjusted to the side where the wind power also decreases, but in this case, the grain loss increases. Therefore, by keeping the opening of the chaff sheave (29) on the open side, the grain loss is reduced. It prevents the increase.

The opening adjusting cylinder (58)
The mounting stand (66) is detachably fixed to the base stand (63) fixed to the threshing side plate (61) side with two bolts (73), and is a one-touch operation using only two bolts (73). Then, the mounting base (66) is mounted and removed, and the cylinder base (66a) is mounted on the mounting base (66).
The cylinder (58) and the arm (59), which are pivotally supported via a pivot (66b) and the like, can be easily attached and detached.

A fixing pin (74) for fixing the chaff sheave (29) at the standard opening position by detaching the wire (60) from the arm (59) in an emergency or the like is fixed to the mounting base (66). doing.

As shown in FIGS. 14 to 16, a dust valve (75) is provided on the upper side surface (22a) on the inlet side of the handling chamber (22).
And three feed valves (75) disposed substantially parallel to the rotation direction side of the handling drum (6); A valve shaft (76) for swingably supporting the middle of the valve (75) on the upper side surface (22a);
The base end is fixed to a connecting rod (77) that interlocks and connects one end of each dust valve (75) to each other, and a valve shaft (76) that is fixed to the dust valve (75) on the inlet side of the handling chamber (22). A valve opening adjusting plate (79) having a pin engagement elongated hole (78) at the tip thereof, and a rotary screw shaft for connecting a pin (80) engaged with the elongated hole (78) by projecting from a lower portion thereof. A screw connector (82) that moves in the left-right direction along (81) and a rotation restricting long hole (83) that rotatably supports the screw shaft (81) and engages with the pin (80). Bearing body (84) having the motor shaft (8) fixed to the bearing body (84) and screwed to the screw shaft (81).
5a), and a sensor arm (87a) is brought into contact with a pin (86) protruding from the upper surface of the adjusting plate (79) by connecting a dust valve opening motor (85) to the dust valve (75). A dust valve opening sensor (87) for detecting an opening degree based on a change in the inclination angle, wherein the opening degree of the dust valve (75) is adjusted by forward / reverse driving of the motor (85). I have.

As shown in FIG. 1, a threshing clutch switch (88) for turning on and off a threshing clutch (not shown) for turning on and off the driving of the threshing section (4), and a chaff sheave (2).
9) A switch (89) for performing automatic and manual switching in the opening control, and a dust valve switching dial switch () for performing automatic and manual switching and manual opening setting of the dust valve (75). 90) and the chaff opening sensor (7
1), the grain amount sensor (72), the dust valve opening sensor (87), a vehicle speed sensor (91) provided in a transmission case of the machine to detect a vehicle speed, and the chaff sheave (29). Opening degree setting device (92) for setting opening degree
A threshing clutch actuating mechanism (95) for inputting and connecting a grain quantity setting device (93) for setting an appropriate grain quantity on the chaff sheave (29); And a controller (94) connected to the chaff opening motor (57) and the dust valve opening motor (85).

As shown in the flowchart of FIG. 17, immediately after the clutch switch (88) turns on the threshing clutch, the chaff sheave (29) is closed and the threshing unit (4) is driven. At the same time, after a lapse of a predetermined time from the ON operation of the threshing clutch, the opening of the chaff sheave (29) is changed from the closed state to the set opening, and thereafter the chaff sheave (29) maintains the set opening and is linked to the amount of straw. A sorting operation is performed. If the switch (87) is automatically switched during the operation with the set opening degree, the opening degree control of the chaff sheave (29) based on the grain amount sensor (72) is performed. When the upper kernel amount (flow rate) is more or less than the setting, a correction is made to make the opening of the chaff sheave (29) large or small. As described above, immediately after the threshing clutch is turned on, the chaff sheave (2
9) is closed and the inside of the handling room (22) and the chaff sieve (2) are closed.
9) Waste rice and straw waste remaining on the top conveyor (3
3) Prevents them from falling into the sorted grain taken out to the first conveyor (33), and prevents them from being mixed into the sorted grain, and after a lapse of a predetermined time during which the sorting accuracy is stabilized, the chaff sheave (29) to the set opening degree. Is opened to start a normal sorting operation.

As shown in the flowchart of FIG. 18, when the dial switch (90) is manually operated, the dust valve (75) is set to the opening degree set by the switch (90). The drive control of the motor (85) for maintaining the opening is performed, while the automatic operation of the dial switch (90) performs the opening control of vehicle speed synchronization. The opening of the dust valve (75) is adjusted by the motor (85) to the opening corresponding to the vehicle speed detected at that time from the relation graph value or the like.

FIG. 19 shows an ultrasonic grain quantity sensor (72) in contrast to the potentiometer grain quantity sensor (72).
a) a pair of oscillators (96a) and a geophone (96b) which are disposed above the chaff sheave (29) with a left-right space between the sheaves (29), and an ultrasonic oscillation circuit (97). ) And a receiving circuit (98), and a switching circuit (9)
The oscillation circuit (97) is connected to the oscillator (96a) and the vibration receiver (96) through the changeover switch (98a) switched in the step 9).
b) and a vibration receiving circuit (9) via a changeover switch (98b) operated by a changeover circuit (99).
8) connect the geophone (96b) so that the output can be stopped freely.
At the start of work or the like, the vibration receiver (96b) is vibrated for a certain period of time to remove dust and the like adhering to the surface of the vibration receiving surface of the vibration receiver (96b).

The sensitivity of the geophone (96b) is also corrected after the vibration of the geophone (96b). When the received value at the time of new vibration is Vn and the received value checked after the vibration is V, a correction value When k = V / Vn and the subsequent vibration value is V1 and the corrected net vibration value is V2, V1 = k × V2 is satisfied, and the sensitivity decrease that cannot be prevented even by vibration is corrected with the correction value. Then, a more accurate reception value (V2) is provided so as to improve the detection accuracy of the ultrasonic grain amount sensor (72a).

[0021]

As is apparent from the above embodiments, the present invention relates to a threshing sorter provided with a first conveyor (33) for taking out sorted kernels below a chaff sheave (29) of an oscillating sorter (25). Since the chaff sheave (29) is temporarily moved to the closed side at the start of the threshing operation, and the sorting initial setting means (57) is opened to the set position, the handling room ( 22) It is possible to prevent the waste rice and straw waste remaining inside and on the chaff sheave (29) from being mixed into the sorted kernels of the first conveyor (33) and to stably maintain the sorting accuracy. is there.

Further, since the opening / closing control device (58) for controlling the opening / closing of the chaff sheave (29) is provided with a one-touch type attaching means (66) for detachably attaching to the main body side, it is provided to the main body side. The opening / closing control device (58) of the chaff sheave (29) is integrated and can be easily handled and easily attached or detached, thereby making maintenance and inspection work of the control device (58) convenient. Is what you can do.

[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 plan view of a dust valve opening degree adjusting unit.

FIG. 15 is an explanatory front view of a dust valve opening degree adjusting unit.

FIG. 16 is an explanatory side view of a dust valve opening degree adjusting unit.

FIG. 17 is a flowchart of chaff control.

FIG. 18 is a flowchart of dust valve control.

FIG. 19 is an explanatory diagram of an ultrasonic grain amount sensor.

[Explanation of symbols]

 (25) Swing sorter (29) Chaff sheave (33) First conveyor (57) Chaff opening motor (sorting initial setting means) (58) Opening adjustment cylinder (opening / closing control device) (66) Mounting base (mounting means) )

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Haruzo Inagaki 1-32 Chaya-cho, Kita-ku, Osaka City Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Shigeru Hidaka 1-32, Chaya-cho, Kita-ku, Osaka-shi Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Toshiki Kirihata 1-32 Chaya-cho, Kita-ku, Osaka-shi Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Takashi Yamada 1-32, Chaya-cho, Kita-ku, Osaka-shi Inside the corporation

Claims (2)

[Claims] 1. A threshing sorter provided with a first conveyor for taking out sorted kernels below a chaff sheave of an oscillating sorter, wherein the chaff sheave is temporarily moved to a closed side at the start of threshing work, and then set at a set position. A threshing sorter, characterized by further comprising a sorting initial setting means for opening the threshing operation. 2. The threshing sorter according to claim 1, further comprising a one-touch type attaching means for detachably attaching an opening and closing control device for controlling the opening and closing of the chaff sheave to the machine.