JPS63240720A - Sorting control apparatus of threshing apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention comprises a swinging sorting plate that sorts out leakage from a treatment room, and is made up of band plate-like members that are juxtaposed in the direction of transfer of the processed material. an actuator for moving and operating the band plate-like member in order to change and adjust the gap formed between adjacent band plate-like members;
Grain culm supply detection means is provided for detecting whether or not grain culm is being supplied to the handling room, and when a set time has elapsed from the time when the grain culm supply detection means detects that grain culm is not supplied. Accordingly, the present invention relates to a sorting control device for a thresher that is provided with a minimum closing control means for operating the actuator so that the gap becomes a minimum value.

[Conventional technology]

The sorting control device of such a threshing machine reduces the gap to the minimum value after a set time has elapsed after the grain culm supply to the handling room is stopped, so that the sorting can be continued even if there is less material leaking from the handling room. This is effective in preventing straw waste from being mixed into the collected grains and discharging straw waste from the apparatus.

By the way, conventionally, the gap was maintained in the same state as when grain culm was being supplied until a set time elapsed after the supply of grain culm to the handling chamber was stopped. (
For example, see Japanese Utility Model Application No. 60-168345) [Problems to be solved by the invention] During the period from when grain culm supply to the handling room is stopped until a set time elapses, leakage from the handling room must be treated. The quantity will gradually decrease.

For this reason, if the gap between the chaff sieves is maintained in the same state as when grain culm is being supplied, there is a risk that a large amount of straw waste will be mixed into the grains that are sorted and collected.

In other words, the sorted material that leaks from the handling chamber and is placed on the chaff sieve has grains with a high specific gravity forming a layer on the lower side, and straw waste with a low specific gravity forming a layer on the upper side. They tend to form layers, and the thickness of the lower grain layer and the upper straw waste layer increases as the amount of material to be processed increases. Therefore, when the amount of material to be sorted is small, if the gap is made small, it is possible to suppress the flow of straw waste and allow the grains to flow down properly. There was a risk of problems caused by debris flowing down, and there was room for improvement.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to accurately prevent straw waste from flowing down through the gaps.

[Means for solving problems]

A characteristic configuration of the sorting control device for a threshing device according to the present invention is such that the gap is larger than a minimum value from the time when the grain culm supply detection means detects grain culm non-supply until the set time elapses. In addition, in order to set the set value close to the minimum value, there is provided a closing control means for the residual material that operates the actuator, and its operation and effects are as follows.

[For production]

That is, from the time the grain culm supply to the handling room is stopped until the minimum closing control means is activated, the gap is larger than the minimum value and is kept at the minimum value by the residual material closing control means. By adjusting to a similar setting value, it is possible to sort out the processed material that leaks from the handling room as the processed material remaining in the handling room is handled, while suppressing the mixing of straw waste into the grain. Become something.

〔Effect of the invention〕

Therefore, by providing a closing control means for the residue and a closing control means for the minimum, the sorting process after the grain culm supply to the handling room is stopped is carried out into the grains to be sorted and collected. It is now possible to carry out the process accurately while suppressing the contamination of straw waste.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

As shown in FIG. 9, the combine harvester includes a vehicle body (V) equipped with a crawler traveling device (1), a threshing device (2) mounted on the upper part of the vehicle body (V), and a threshing device (2) mounted on the top of the vehicle body (V). It is provided with a reaping part (3) attached to the front part.

As shown in FIG. 10, the output of the engine (E) mounted on the vehicle body (V) is transmitted to the threshing device (2) via the belt tension type threshing clutch (4), and also to the traveling speed change value. w (5) is a belt tension type running latch (6
), and the driving transmission (5
) is transmitted to the reaping section (3) via a belt tension type reaping latch (7).

The reaping unit (3) includes a grain culm pulling device (8), a cutting blade (9) that cuts the stock base of the raised grain culm, and a threshing device that changes the harvested grain culm to a sideways posture. Each grain culm conveying device (10) is provided for conveying the grain to the device (2).

As shown in FIG. 11, the threshing device (2) has a handling cylinder (
11), a feed chain (12) that pinches and conveys grain culms in a sideways position, a cross-flow fan (13) for dust removal, a winnow (14) and a swinging sorting plate ( 15
), and further includes a first port (16) for collecting grains and a second port (16) for collecting second grains.
7).

At the bottom of the handling room (A), there is a receiving net (18) for grain sorting.
A handling room (A) is provided at the end of the handling room (A).
A) A discharge port (19) is opened to discharge the processed material remaining in the chamber. However, the treated materials leaking through the receiving net (18) and the treated materials discharged through the discharge port (19) are collectively referred to as the leaked treated materials from the handling room (A).

The oscillating sorting plate (15) has a grain pan (20) located above the chiffon (14), a chaff sieve (21) placed vertically (following the grain pan (20)), and a chaff sieve (2I) pulled by the chaff sieve (2I). The next straw rack (22
), an auxiliary grain pan (23) located below the starting end side of the chaff sieve (21), and its auxiliary grain pan (
23) and grain sheaves (25), which are installed between a pair of left and right side plates (26), giving the overall shape of a plate.

In the figure, (27) is a grain pan for a discharge port disposed opposite to the discharge port (19), and (28) is a grain pan located subsequent to the grain pan (27), and which is located laterally. These are a plurality of rod materials lined up, and they are the swinging sorting plate (15
). Also, (29)
is a rotating body with blades that acts on the processed material on the rod material (28).

The chaff sieve (21) is composed of strip-shaped members (a) and (a") that are arranged in parallel in the direction of transport of the processed material, and the adjacent strip-shaped members (a) and (a") are The gap (S) formed therebetween is configured to be changeable and adjustable.

That is, as shown in FIGS. 12 and 13, one strip member (a') of the plurality of strip members (a)
The upper end portion is fitted onto the fulcrum shaft (30) passing through the pair of left and right side plates (26), and the side plate (26) A connecting pin (31) passing through a long hole (b) formed in is fixedly attached. A pair of left and right links (32) are provided on each of the fulcrum shaft (30) and the connecting pin (31), and an operating arm (33) is provided on one of the pair of links (32).
is attached.

The other band plate members (a) other than the one band plate member (a') are attached to the side plate (
26). In other words, in the U-shaped mounting bracket (34), the shaft portion (34a) on the upper end side is connected to the side plate (26).
), and the shaft portion (34b) on the lower end side passes through the elongated hole (b) formed in the side plate (26). Then, a member of the public at both ends of the upper end of the strip member (a)
a), and both ends of the lower end side of the strip plate member (a) are attached to the shaft portion (
34b).

The connecting pin (31) and the shaft portions (34b) on the lower end side of the plurality of mounting fittings (34) are connected by a connecting plate (35), so that each of the band plate-like members (a), (a' ) swings together with the upper end side as a fulcrum, thereby closing the gap (S
) are now subject to change and adjustment.

Also, a band-shaped plate member (a) for adjusting the gap (S).

An electric motor (MO) as an actuator for swinging the thresher (a') is attached to the fixed frame side of the threshing device (2),
The gap (S) is adjusted by this electric motor (M1). In other words, the spring (36) that urges the operating arm (33) toward the closed side where the gap (S) is small is connected to the operating arm (33), and the operating arm (33) is biased toward the open side where the gap (S) is large. One end of the release wire (37) is connected to the operating arm (33), and the other end of the release wire (37) is connected to a screw shaft that is rotated forward and backward by the electric motor (M1). It is connected to a piece member (39) that fits into (38).

However, (40) in the figure is a volume that detects the adjustment state of the gap (S) by changing the position of the top member (39), and the free end of the operating lever (40A) is connected to the top member (39). )It is connected to the. Also, (41a), (
41b) is a limit switch which is pressed and operated by the operation lever (40A) when the adjustment limit of the gap (S) is reached, and is provided to automatically stop the electric motor (M1).

The number of rotations of the winnowing machine (14) can be changed and adjusted in order to adjust the amount of air for selection. That is, the fourteenth
As shown in Figures 16 to 16, the rotating shaft (
The input pulley (42) attached to the input pulley (42) is configured to be able to freely change and adjust the interval between the left and right pulley portions (42a) and (42b), thereby forming a belt type transmission (43). However, in the figure, (44) is a transmission belt, (
45) is a tension boom.

To explain the input pulley (42), one of the pulley parts (42a) and (42b) is fixed to the rotating shaft (14A), and the other pulley part (42b) is fixed to the rotating shaft (14A). is slidably fitted onto the rotating shaft (14A). However, the pulley part on the sliding side (4
2b), a connecting pin (46) attached to the fixed side pulley portion (42a) is inserted, and both pulley portions (42a)
) and (42b) are designed to rotate integrally.

a first cam forming member (48) attached to the boss portion of the sliding side pulley portion (42b) using a hair ring (47);
and the second cam forming member (49) attached to the fixed frame side of the threshing device (2), as the first cam forming member (48) rotates, both pulley portions (42,'1), (
Cam protrusion (48a) for moving 42b) far and near
, (49a) are formed.

Further, an electric motor for rotating the first cam forming member (48) for speed change operation is attached to the fixed frame side of the threshing device (2). In other words, the first cam forming member (48
) is attached with an operating arm (50), one end of a release wire (5I) is connected to the operating arm (50), and the other end of the release wire (51) is connected to the electric motor (4). , ) is connected to a piece member (53) that fits into a screw shaft (52) that is rotated forward and backward.

However, (54) in the figure is a volume that detects the speed change state by changing the position of the top member (53), and the free end of the operating lever (54A) is connected to the top member (53). There is. Also, (55a) and (55b) are
When the limit of the speed change range is reached, the operation lever (54A)
This is a limit switch that is pressed and operated by the controller, and is provided to automatically stop the electric motor (M2).

Next, the electric motor (M1) for adjusting the gap of the chaff sieve (21) and the electric motor (M2) for adjusting the sorting air volume of the winnower (14) are operated to perform control to maintain the sorting state appropriately. The configuration will be explained.

As shown in FIG. 1, a control device (H) configured using a microcomputer is provided, and the control device (L
In (), an automatic switch for the Karasaki winnower (56) that sets whether or not to automatically change and adjust the sorting air volume, and a chaff sieve (21)
Automatic switch for chaff sieve (57) to set whether or not to automatically change and adjust the gap (S), manual switch for chiffon (58) to manually change and adjust the sorting air volume, gap of chaff sieve (21) a manual switch (59) for the chaff sieve for manually changing and adjusting the conditions; a condition switch (60) for setting grain culm conditions in four stages: dry rice, wet rice, dry wheat, and wet wheat; Threshing clutch (4)
A threshing switch (61) that is turned on and operated as the grain culm is turned on, and a grain culm supply detection means that detects whether or not grain culm is being supplied to the handling chamber (A). A stock switch (62) that detects the presence or absence of grain culms in the conveyance path of the conveyance device (10), a rotation speed sensor (63) that detects the rotation speed of the engine (E), and a speed change in the traveling transmission (5). A vehicle speed sensor (64) that detects the subsequent rotational speed as a traveling speed, the above-mentioned winnowing volume (54) for detecting the change adjustment state of the screening air volume, and a chaff sieve (
21) are connected to each of the chaff sieve volumes (40) for detecting the gap adjustment state. Then, the control device (11) operates an electric motor (M2) for adjusting the sorting air volume and an electric motor (M1) for adjusting the gap of the chaff sheave (21) based on pre-stored information and input information. It is configured to allow

That is, the processing material amount detection means (100) detects the amount of material to be sorted using the control device (1), and the vehicle speed sensor (64) is configured to increase the gap (S) as the traveling speed increases. A first control means (101) for the chaff sieve that operates the electric motor (M1) for the chaff sieve based on detection information; Based on the detection information of the chaff sheave electric motor (M1
) for operating the chaff sheave (102
), a first control means (10) for the Karasaki that operates the electric motor (Ob) for the Karasaki based on the detection information of the vehicle speed sensor (64) in order to increase the amount of air to be selected as the traveling speed increases.
3) Second control means (104) for the winnowing machine that operates the electric motor (M2) for the winnowing machine based on the detection information of the throughput amount detecting means (100) in order to increase the sorting air volume as the amount of things to be sorted increases. , and, as the stock source switch (62) detects that grain culm is being supplied, the first control means (101) for chaff sieves and for chiffons (10
3) is opened for a set time (C2), and then the second control means (102) and (1
04), the gap (S) is set to the minimum value ( C2) and a set value (C1) close to the minimum value (CZ).
106), and as the set time (t1) elapses, the chaff sheave electric motor (M1) is operated so that the gap (S) becomes the minimum value (C2). Various control means such as a closing control means (107) are configured.

Hereinafter, while explaining the operation of the control device (H), the various control means described above will be explained.

First, to explain roughly, the control device (11)
As shown in the figure, the first time period (T1) is from when the stock switch (62) is turned on until the first set time (t1) has elapsed, and then the second set time (tz) has elapsed. 2nd time period (T2) until then stock switch (62)
the third time period (T3) until the
a fourth time period (T4) until the set time (L1) elapses;
After that, while determining whether it is the fifth time period (T5) until the fourth set time (C4) elapses or the sixth time period (T6) until the stock switch (62) is turned on. , each time period (T.

It is configured to perform preset control according to T6) to T6).

That is, in the second time period (T2), the first control means (101) and (103
), and in the third time period (T1), the second control means (102) for chaff sieves and winnowers.

(104) is executed, and the first, fourth, and fifth
, in each of the sixth time periods (T+, T4 to T6), the gap (S) is adjusted so that the target gap (C+''C3) and the target wind it (t'l+-'W3) are set and stored in advance.
It is configured to execute processing for adjusting the air flow rate and the sorting air volume.

FIGS. 8(A) and 8(B) show the target gap (C, -Cff) and target air volume (-3 to 6) in each time period (T, , T4 to T6), respectively.

The target gap (S) and target air volume (W) corresponding to the traveling speed (Z) in the Plan 1 control means (101) and (103) are as shown in FIGS. 6(A) and (B). The culm conditions (flO~13, f20~23) are set and memorized in advance, and the memorized target gap (
Control operations are performed to achieve the target air volume (S) and the target air volume (S).

Similarly, the double cylinder 2 control means (102), (104
As shown in Figure 7 (A) and (B), the target gap (S) and target amount (W) corresponding to the amount of material to be sorted in In addition, the settings are stored in advance, and control operations are performed to achieve the stored target gap (S) and target air volume (K).

However, in this embodiment, the processing material amount detection means (100
), as described below, is configured to detect a reduction in engine speed due to threshing load as the amount of material to be sorted.

That is, the processing material amount detection means (100) basically calculates the reduction (Ed) of the engine rotation speed using the following formula.

E d = E o (E n + S d ) where (En) is the current engine rotation speed.

(Sd) is the reduction in running speed and is determined by the product of the running speed (detected value of the vehicle speed sensor (64)) and the setting coefficient.

(Eo) is the standard rotation speed, stock main (62)
It is determined by the sum of the engine speed and the reduction in running speed at the time when the engine turns from OFF to ON.

In addition, during automatic control, the set reference rotation speed (Eo
), if a higher rotational speed is detected, the higher rotational speed is replaced with the reference rotational speed, and subsequent control operations are performed.

Next, the process will be explained in detail with reference to the flowcharts shown in FIGS. 2 to 4.

As shown in FIG. 2, when the control device (1■) is started, it executes initialization processing (#1), and then output processing (#1).
...Execute 2).

Next, the process (I3) of sequentially adding the count value (i) is executed, and when the count value (+) reaches the set value (A) (#4), that is, every time the set time is reached, the condition is set. A process (#5) and a process (#6) for initializing the count value (i) to zero are executed.

Thereafter, the above-mentioned process is repeated while checking the waiting time for repeating the program at a predetermined period (+17).

In the output process (#2), first, a process (#8) of reading the operating states of the switches is executed. Next, only when the read result is one match with the previous read result, the read result is set as the operating state of each switch, and when there is a discrepancy, the previously set operating state is set for each switch. Execute noise processing (#9) that continues to be set as the operating state of switches.

After that, the process of reading the detection information of each sensor (110
), and then an averaging process (11) in which the average value of the multiple reading results is set as the detection information of each sensor type.
Execute.

Next, check whether the engine speed is equal to or higher than the idling speed (112), and if it is less than the idling speed,
Electric motors (M+), (M2) for chiffons and chaff sheaves
) is executed (+113), and the process returns to the main routine.

If the above check (#12) determines that the above is the case, check the operating state of the threshing switch (62) (#14). If it is L or OFF, proceed to the above stop process (1113). do.

When the threshing switch (62) is ON, the winnower (14)
Adjustment processing of the screening air volume (#15 to #22) is performed, and then adjustment processing of the gap (S) of the chaff sieve (21) is performed (#15 to #22).
23 to #30), and then returns to the main routine.

The selection air volume adjustment processing (#15 to #22) is performed based on the operation state of the manual switch (58) for the chisel, and if it is necessary to operate it to increase the scenery, the electric motor (M2) for the chisel is ) to increase the air volume,
And the wind! When it is necessary to operate to the wind reduction side, a weak output is provided to operate the electric motor (M2) for the winnowing machine to the wind reduction side.

Then, the wind t based on the operation information of the manual switch (58)
If it is not necessary to perform section il1, check the operating state of the automatic switch (56) for the winnowing machine.

When the automatic switch (56) is OFF, the process of stopping the electric motor (M2) is executed, and when the automatic switch (56) is ON, the deviation is obtained by subtracting the target value and the current value. Execute processing.

Next, based on the above deviation, it is checked whether the air volume needs to be increased, whether it is necessary to decrease the air volume, and whether there is no need to adjust the air volume, and based on the determination results, the A strong output for operating the motor (corner) to increase the air volume, a weak output for operating the electric motor (M2) to reduce the air volume, and a process for stopping the electric motor (M2) are executed.

Adjustment process (#) of the gap (S) of the chaff sieve (21)
23 to #30) are manual switches for chaff sheave (5
Based on the operation state in 9), if it is necessary to operate to the opening side, it is necessary to provide a closing output to operate the chaff sheave electric motor (M1) to the opening side, and also to operate it to the closing side. In this case, a closing output is performed to operate the chaff sheave electric motor (M+) to the closing side.

If there is no need to perform gap adjustment based on the operating information of the manual switch (59), the operating state of the automatic switch (57) for the chaff sheave is checked.

When the automatic switch (57) is OFF, a process is executed to stop the electric motor (M2), and when the automatic switch (57) is ON, the deviation is calculated by subtracting the target value and the current value. Execute processing.

Next, based on the above deviation, it is checked whether it is necessary to open the gap (S), whether it is necessary to close the gap (S), or whether there is no need to adjust the gap, and based on the determination result, , a closing output that operates the electric motor (l) to the opening side, a closing output that operates the electric motor (M2) to the closing side, and
Each process for stopping the electric mower (M1) is executed.

As shown in FIG. 4, the condition setting process (15) first checks the status of the stock switch (62) (#31).

If the stock switch (62) is OFF, the OFF
Based on the later time, the fourth to sixth time period (T4 to T
6) is checked (#32), and the gap (
After setting the target values (C0 to C3) of S) and the target values (-3 to -1) of the air volume (W) (#33 to $135), the process returns to the main routine.

When the stock switch (62) is ON, the control bag f
It is checked (#36) whether or not it is ON for the first time since (t1) is activated.

If it is ON for the first time, a process (1$37) for calculating the reference rotation speed (Eo) of the engine (E) is executed. If it is not ON for the first time, check whether the reference rotation speed (Eo) is greater than the current rotation speed (En) (#38).
) If L is not large, execute the process (#39) of replacing the current rotation speed (En) with the reference rotation speed (F!.).

Then, based on the operating state of the condition switch (60),
Set the condition flag (j) necessary for determining the target value in the dual cylinder 1 control means (101), (103) and the dual cylinder 2 control means (102), (104) (#40)
.

Next, based on the time after the stock switch (62) is turned on, it is checked ($141) which one of the first to third time zones (TI to Ti) it is in.

If it is the first time period (T1), the target value (C3) of the gap (s) and the air volume (
The target value (H3) of H3 is set (142) and the process returns to the main routine.

If it is the second time period (T2), the double cylinder 1 control means (
101) and (103), the target value of the gap (S) and the target value of the air volume (R) are set based on the traveling speed detection information, the condition flag (j), and the information stored in advance. (1$43) and returns to the main routine.

If it is the third time (T3), after executing the process (144) for calculating the rotation speed reduction (Ed) of the engine (E), the calculation result, the condition flag (j), and the pre-stored Based on the information obtained, the target value for the gap (S) and the target value for the air volume (匈) are set (145), and the main route is started.
Take revenge on Chin.

[Another example]

The present invention can be applied to swing sorting TFIs (15) having various configurations in which the chaff sheaves (21) are disposed differently. and,
In order to adjust the gap (S) of the chaff sheave (21), instead of swinging the belt-like member shafts) and (a'), they may be moved in parallel. Furthermore, the band plate-like members (a), (
The specific structure for moving a') to adjust the gap (S) can be modified in various ways.

The grain culm supply detection means (62) can be modified in various ways, such as detecting the presence or absence of grain culms being conveyed in the feed chain (12) of the threshing device (2).

As the processing material amount detection means (100), a chaff sieve (
21) Detect the thickness of the layer of the processing material on the processing cylinder (1
Various changes can be made, such as detecting the driving torque in 1).

Further, in the above embodiment, the case where the amount of air for selection of the winnowing machine (14) is adjusted in accordance with the gap adjustment of the chaff sieve (21) is exemplified, but only the gap adjustment may be performed.

Further, in the above embodiments, the case where the process is implemented using a microcomputer is exemplified, but various means may be configured and implemented using electronic circuits.

In addition, the configuration of each part necessary for carrying out the present invention can be changed in various ways depending on the intended use.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing the control configuration, Figs. 2 to 4 are flow charts showing the control operation, Fig. 5 is a time chart showing the control operation, and Figs. 6 (A), (B) to 8. (A) and (B) are drawings showing control setting conditions, No. 9
The figure is a side view of the combine, Figure 10 is a transmission system diagram,
Figure 1 is a cutaway side view of the threshing device, Figure 12 (A),
(B) is a cutaway side view showing the chaff sheave, Fig. 13 is a developed plan view showing the mounting structure of the strip plate member, Fig. 14 is a diagram showing the transmission structure of the karin, and Fig. 15 is the large turnip of the karin. FIG. 16 is a cutaway front view showing the cam forming member. (15)...Obcillating sorting plate, (21)...
Chaff sieve, (62)... Grain culm supply detection means, (105)... Closing control means for residue,
(106)... Minimum closing control means, (A)
..... Handling room, (a), (a') .... Strip plate member, (C7) .... Setting value, (C2) ...
...minimum value, (M+) ...actuator,
(S)...Gap.

Claims (1)

[Claims] A swinging sorting plate (
15), a band plate-like member (a
), (a') is provided, and the chaff sheave (21) is provided to change and adjust the gap (S) formed between adjacent strip members (a), (a'). , an actuator (M_1) for moving and operating the strip plate members (a) and (a') is provided, and a grain controller for detecting whether or not grain culm is being supplied to the handling chamber (A). Culm supply detection means (62) is provided, and the grain culm supply detection means (62) is provided.
) detects grain culm non-supply for a set time (t_3)
As time passes, the gap (S) decreases to the minimum value (C_2).
A sorting control device for a thresher is provided with a minimum closing control means (106) for operating the actuator (M_1), and the grain culm supply detection means (62) During the period from the time when non-supply is detected until the set time (t_3) elapses, the gap (S) is larger than the minimum value and has a set value (C) close to the minimum value.
_1), the actuator (M_
1) A sorting control device for a threshing machine, which is provided with a closing control means (105) for the residue, which activates the system.