JPH03119920A - Selection controlling apparatus of thresher - Google Patents

Abstract

PURPOSE:To improve the selection accuracy by making the selection state to be automatically controllable according to the variation of the treated product spilled from a threshing chamber even after changing from culm-feeding state to non-feeding state. CONSTITUTION:The selection state of a selection apparatus is automatically controlled by a controlling means 101 based on the information transmitted from a culm feeding state detection means S0 and a treated product detection means 100 in such a manner as to increase the amount of treated product according to the increase of the amount of spilled treated product when the thresher is in culm-feeding state and to decrease the amount of treated product according to the change from the culm-feeding state to non-feeding state. The controlling means 101 gradually transfers the selection state from a state corresponding to the amount of spilled treated product to a preset selection state corresponding to small amount of treated product according to the transfer from the culm- feeding slate to non-feeding state. The selection accuracy can be improved by this process.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a sorting device for sorting and processing leaked waste from a handling chamber, and a processed material amount detection means for detecting the amount of leaked waste from the handling room. and grain rod supply state detection means for detecting whether or not the grain rods are being supplied to the handling room, and when the grain rods are being supplied, the amount of leaked material is The grain rods are set so that the grain rods are set in a sorting state in which the amount of materials to be processed increases as the amount of materials to be processed increases, and as the amount of materials to be processed changes from the grain rod supply state to the non-supply state, a set sorting state corresponding to a state in which the amount of materials to be processed is small is set. The present invention relates to a sorting control device for a threshing machine, which is provided with a control means for automatically adjusting the sorting state of the sorting device based on information from the supply state detecting means and the processing material amount detecting means.

[Conventional technology]

In the above-mentioned sorting control device for this type of threshing equipment, the amount of waste to be processed decreases when grain rods are no longer supplied to the handling room, so when the grain rods are being supplied, the sorting state is adjusted according to the amount of waste to be processed by leakage. By automatically adjusting the setting and sorting state that corresponds to a state where the amount of processed material is small as the state changes to a non-supply state, the sorting state can be maintained even after the grain rod supply state changes to a non-supply state. can be automatically adjusted according to the amount of waste to be treated.

[Problem to be solved by the invention]

However, even when the grain rod supply state changes to the non-supply state, the processed materials such as grain rods and grains remain in the handling room for a while, so the amount of leaked processing material does not disappear immediately, but gradually decreases. I will do it.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to change the sorting state after changing from the grain supply state to the non-supply state to correspond to the actual fluctuations in the amount of waste to be processed. The purpose is to enable automatic adjustment.

[Means to solve the problem]

A sorting control device for a threshing machine according to the present invention includes a sorting device for sorting the leaked waste from the handling chamber, a processed material amount detection means for detecting the amount of the leaked waste from the handling chamber, and A grain rod supply state detection means is provided for detecting whether or not the grain rods are being supplied, and when the grain rods are being supplied, the amount of the processed material increases as the amount of leakage processing material increases. The grain rod supply state detection means and the processing are configured such that the grain rod supply state detection means and the processing A control means is provided for automatically adjusting the sorting state of the sorting device based on information from the object quantity detecting means, and its characteristic configuration is as follows.

That is, the control means gradually changes the sorting state from a sorting state corresponding to the amount of leaked material to a set sorting state corresponding to a small amount of material to be processed as the grain rod supply state changes to a non-supply state. The point is that it is configured to migrate.

[For production]

As mentioned above, even if the supply of grain rods to the handling room is stopped, the amount of waste material leaking from the handling room will not disappear immediately, but will gradually decrease.

Therefore, as the grain rod supply state changes to a non-supply state,
By gradually shifting the sorting state from a sorting state corresponding to the amount of waste to be processed to a set sorting state corresponding to a small amount of material to be processed, the sorting state after the non-supply state is changed to the state for actual leakage treatment. This makes it possible to automatically adjust the state to correspond to changes in the amount of material.

〔Effect of the invention〕

Therefore, the sorting state after changing from the grain rod supply state to the non-supply state can also be automatically and appropriately adjusted in accordance with the change in the amount of material to be leaked from the handling room, making it possible to improve the sorting accuracy.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a sorting control device for a full-culm input type combine harvester will be described below with reference to the drawings.

As shown in Fig. 12, the full-culm input type combine harvester has a body (V) equipped with a crawler traveling device (1), a boarding control section (2), and a threshing device (3), and a It consists of a reaping pre-processing section (4) that is attached around a horizontal axis along the width direction of the machine so that it can be driven up and down.

The reaping pre-processing section (4) includes a weeding tool (5) provided at its tip, a reel (6) that scrapes the planted grain rod toward the rear side of the machine body (■), and a scraped grain rod. A clipper-type cutting blade (7) that cuts off the base of the stock, an auger (8) that receives the harvested grain rod and sends it out to the rear of the machine (V), and a raking machine with three rotating drums arranged side by side. It is composed of a transport section (9).

The threshing device (3) includes a handling chamber (into which all the reaped grain rods transported by the raking and transporting section (9) are thrown).
A), a sorting device (B) equipped with a swinging sorting plate (10) that acts to sort out the leakage from the handling room (A), and a winnow (11) that blows sorting air. We are prepared.

The handling chamber (A) includes a handling trunk (12
) is provided, and below the handling cylinder (12), the handling chamber (
In A), a net (13) is stretched over approximately the entire length in the front-back direction to catch the threshing material leakage.

As shown in FIGS. 12 and 13, a ceiling cover (14) on the grain rod entrance side of the handling room (A) indicates whether or not the handling room (A) is in a grain rod supply state. A contact-type grain rod detection sensor (
SO) is installed.

To explain the grain rod detection sensor (S0), it is swingable around an axis parallel to the rotational axis of the handling barrel (12) so as to contact the material to be processed in the handling chamber (A). and a spring (1) that urges the contact piece (15) toward the handling cylinder (12).
6), and a switch (17) that is turned on when the contact piece (15) swings beyond a set value. In other words, when grain rods are supplied to the handling chamber (A), the contact piece (15) comes into contact with the material to be handled by the handling drum (12) and the switch (17) is turned on. It is possible to detect that the grain rod is being fed, and when the switch (17) is turned off, to detect that the grain rod is not being fed. However, although it will not be described in detail, since the grain rod will be intermittently in contact with the contact piece (15), the switch (17) should not be pressed for more than the set time (set to 2 seconds). When it is in the OFF state, it is determined that it is in the non-supply state.

As shown in FIG. 12, the swing sorting plate (10) includes a grain pan (18) and a chaff sieve (19) arranged sequentially from the front to the rear, and a portion below the chaff sieve (19). Glenshive (20
), each of which has a pair of left and right side plates (21
), and is formed into a plate shape as a whole.

At the bottom of the sorting device (B), the grain sieve (2
0), which collects the grains leaking from the grain sieve (22) as the first material, and straw waste, etc. that falls beyond the terminal end of the chaff sieve (19) and the terminal end of the grain sieve (20). A second material collecting section (23) is provided for collecting a processed material (abbreviated as second material in the following explanation) containing grains and grains. Although not described in detail, the second items collected from the second item collecting section (23) are returned to the handling room (A) and are handled and processed again.

As shown in FIG. 14, the chaff sieve (19) is
A plurality of band plate-like members (19a) arranged in parallel in the processing material transfer direction (horizontal direction in the figure) are rotatably attached to the left and right side plates (21) using their upper ends as fulcrums, By pushing and pulling the operating rod (24) to which the lower end of each strip member (19a) is pivotally attached, the distance (t) between the strip members (19a) (in the following description) It is configured so that the chaff opening degree (sometimes referred to as the chaff opening degree) can be changed and adjusted.

A chaff opening adjustment electric motor (Ml) as an actuator for changing and adjusting the chaff opening is provided, and a linkage mechanism (25) driven by the electric motor (Ml) and the operating rod (24) are provided. are interlocked and connected by a release wire (26). In addition, in the figure, (27
) is a spring that biases the chaff opening to return to the closing side, and (S2) is a potentiometer-type chaff opening detection device that detects the operation amount of the operating rod (24) by the electric motor 0Jl) as the chaff opening. A sensor,
It is attached to the linkage mechanism (25).

The winnowing machine (11) is configured to be able to change and adjust the amount of air blown by using a so-called split pulley type continuously variable transmission device and varying its rotational speed.

To explain further, as shown in FIG.
1) is configured as a split pulley, and the operation arm (29) that changes the diameter of the manual pulley (28) is connected to the electric motor (M) for adjusting the air flow rate.
2) so as to be rotatably operated by
By adjusting the rotational speed of the winnowing machine (11) to a high or low level using the electric motor (L), it is possible to change or adjust the air flow rate (sometimes referred to as the blown air volume in the following explanation) to a higher or lower level. . In the figure, (30) is the drive belt of the input pulley (28), and (31) is the linkage mechanism (32) driven by the electric motor (M2).
) and the operating arm (29), (S,) is a potentiometer-type tow constant air volume detection sensor that detects the operation amount of the operating arm (29) as the tow air volume, The linkage mechanism (32
) is attached.

In other words, the sorting device (B) adjusts the opening degree of the chaff to a large or small degree, and adjusts the amount of airflow to be strong or weak, thereby sorting according to the amount of leakage from the handling room (A). It is designed so that its condition can be adjusted. The details will be described later, but basically, the sorting state is adjusted according to the amount of leaked material so that the larger the amount of leaked material, the larger the chaff opening degree and the stronger the air flow rate. This is to allow automatic adjustment.

Next, a control configuration for automatically adjusting the sorting state of the sorting device (B) according to the amount of leaked material will be explained.

As shown in FIG. 1, a control device (33) using a microcomputer is provided, and the control device (33) includes the grain rod detection sensor (S0), the crawler traveling device (
1) Vehicle speed sensor (Sl) that detects the vehicle speed based on the driving rotation speed, □The chaff opening detection sensor (S2)
, the tow constant air flow detection sensor (S), and the chaff opening setting device (S) for manually setting the upper limit of the chaff opening.
4) and an airflow setting device (S6) for manually setting the lower limit of the airflow.

However, the amount of airflow is set as the number of rotations of the winnow (11). In addition, in the figure, (SW,
) is an automatic mode for automatically adjusting the chaff opening degree and the tossing air volume according to the amount of leaked material;
(SW2) is an automatic switch for selecting whether the grain rods supplied to the handling room (A) are rice, wheat, or soybean; Grain rod type indication switch (3)
4) is the setting device (S4) when the manual mode is selected.
).

This is an alarm device as an alarm means that activates an alarm if the setting of the target value in (S5) is incorrect.

That is, by using the control device (33), the handling room (
A) Processing material amount detection means (
100), the various information set and stored in advance and the information of the various sensors are set so that the sorting state corresponds to the sorting state in which the larger the amount of leaked material from the handling room (A), the larger the amount of material to be processed. A control means (101) is configured to automatically adjust the sorting state of the sorting device (B) based on the above.

The processing amount detection means (100) will be explained as follows.
As the speed of the combine increases, the amount of grain fed to the handling room (A) increases.
The amount of waste to be treated by leakage will increase. In other words, the vehicle speed can be used as information proportional to the amount of waste to be treated.

Therefore, in this embodiment, the chaff opening degree and the winding air volume are set according to the vehicle speed detected by the vehicle speed sensor (Sl) based on the target values set by the setting devices (S4) and (S5). By correcting the amount of waste, the sorting state of the sorting device (B) is automatically adjusted so that the sorting state corresponds to the amount of leakage to be processed.

To explain the target values set by the setting devices (S4) and (35), as shown in FIG. When the chaff opening setting device (S
so that the maximum value of 4) becomes the maximum value of the chaff opening degree,
The adjustment range is determined. Also, as shown in Figure 4,
The target value of the air flow rate is determined by the air flow setting device (S).
, ) to the minimum value, the minimum rotation speed (800 rpm
m) and when operated to the maximum value, the maximum rotation speed (1
The adjustment range is determined so that the rotational speed is 25 Orpm).

However, when the grain rods supplied to the handling room (A) are wheat or soybeans, the milling air volume is set to the target value set by the milling air volume setting device (S5) regardless of the amount of leaked material. I try to keep it that way.

To explain further, when the grain rod is wheat, the chaff opening degree is adjusted to the closed side as the vehicle speed decreases, as shown in FIG. The opening degree is automatically adjusted according to the vehicle speed with the target value set by The aim is to maintain the set target value.

When the grain rod is rice, the chaff opening degree is adjusted to the closed side as the vehicle speed decreases, as in the case of wheat, as shown in FIG. 7. (S
The opening degree is automatically adjusted according to the vehicle speed with the target value according to 4) as the upper limit, and the winding air volume is set so that it becomes stronger as the vehicle speed increases, as shown in FIG. The target value set by the device (S,) is automatically adjusted as the lower limit.

However, the chaff opening degree is adjusted to be closer to the closed side than in the case of wheat at the same vehicle speed.

When the grain rod is soybeans, as in the case of wheat, the chaff opening degree is automatically adjusted according to the vehicle speed as shown in Figure 9, and the chaff air volume is adjusted as shown in Figure 10. , 11
The target value set by the air flow setting device (S5) is maintained within the range of 000 rpm to 120 rpm.

That is, in the automatic mode, the control means (101) controls the winnowing part (11) according to the type of grain rod to be threshed.
) is configured to be freely switchable between a first control state in which the amount of air blown is automatically adjusted according to the amount of leaked material, and a second control state in which the air flow rate is maintained at a preset value. However, in both the first control state and the second control state, the chaff opening degree is automatically adjusted according to the amount of leaked material.

Further, although not described in detail, since the winnowing machine (11) is configured to change the rotation speed using a split pulley type transmission device, even when the automatic mode is selected, the winnowing machine (11) ) is smaller than a preset value, it is determined that the threshing device (3) is not in operation, and actual control is not started.

By the way, until the reaping work starts, the handling room (
Since there is no waste to be treated leaking from A), the sorting state cannot be automatically adjusted according to the vehicle speed, so the chaff opening degree is maintained at a preset minimum value, and the toe air flow rate is maintained at the weakest state. It's like letting them do it. Note that the control state up to the start of this reaping work will be abbreviated as mode 1 in the following explanation. However, as shown in FIG. 11, the minimum value of the chaff opening degree in this mode 1 is maintained at a value on the opening side when growing rice than when growing wheat.

After starting the mowing work, as described above, the chaff opening degree and the wind volume are automatically adjusted based on the information from the vehicle speed sensor (Sl) so that the sorting state is determined according to the amount of leaked material. It turns out. However, in the case of wheat and soybeans, the rice air volume is maintained at the target value set by the grain air volume setting device (S4),
Only the chaff opening degree will be automatically adjusted. Note that the control state during this reaping work will be abbreviated as mode 2 in the following explanation.

Next, when the reaping work is completed, the state will be the same as before the reaping work (mode 1), but even if the reaping work is completed, the amount of waste to be treated leaking from the handling room (A) will be reduced. Since it does not disappear immediately, in other words, it gradually decreases, after the reaping work is completed,
The current chaff opening degree and current airflow rate are maintained until the set time has elapsed, and then the mode 1 is entered while gradually changing the chaff opening degree to a small value and the torrent airflow rate to a weak level. In addition, the control state at the end of mowing is
In the following explanation, it will be abbreviated as mode 3.

However, if the type of grain rod specified by the grain rod type selection switch (SW2) is wheat or soybean, only the chaff opening degree is automatically adjusted, and the chaff air volume is adjusted by the setting device (S,). The set target value will be maintained. The time for maintaining the chaff opening at the current value is longer for rice than for wheat, and the minimum value when returning to mode 1 is longer than for wheat. If it is also rice, it is more likely to be a dog. In the case of rice, when shifting from mode 3 to mode 1, the rice air volume is reduced in stages.

On the other hand, when the grain rod is soybeans, in any of the modes 1, 2, and 3, the chaff opening degree is automatically adjusted according to the vehicle speed, and the chaff air volume is adjusted by the setting device (S , ) is maintained at the target value set by .

The start of mowing and the end of mowing are determined based on information from the grain rod detection sensor (SO).

Next, the operation of the control device (33) will be explained based on the flowchart shown in FIG.

As the control is activated, the automatic switch (SW,
) is used to determine whether automatic mode is selected.

If the automatic mode is selected, it is determined based on the information of the grain rod detection sensor (SO) whether or not the harvesting is in progress, that is, whether the grain rods are being supplied to the handling room (A). Determine whether it exists or not.

If the grain rod is in the non-supply state, it is determined that it is in the state before the start of mowing, and the control state is shifted to the mode 1, where the chaff opening is fully closed and the grain airflow is at its lowest. The condition will be maintained. However, when the grain selection switch (SW2) indicates wheat or soybeans, the grain air volume is maintained at the target value set by the setting device (S5).

When the grain rod is in the feeding state, it is determined whether the grain rod is being reaped or is transitioning from the reaping state to the end of reaping based on the change in the 0N10FF state of the grain rod detection sensor (S0). .

When the grain rod detection sensor (S0) changes from OFF to ON and determines the start of reaping, the state shifts to the control state of the second mode, and the control state is changed based on the detection information of the vehicle speed sensor (Sl). The chaff opening degree and the air flow rate are automatically adjusted. However, the grain rod selection switch (
If the instruction given by SW2) is for wheat or soybeans, the grain landscape is set by the setting device (S,) even during reaping.
This will maintain the target value set by.

When the grain rod detection sensor (SO) changes from ON to OFF and determines the end of mowing, the control state is shifted to mode 3, and the chaff opening degree and grain airflow rate are maintained at the current level for a set time. After the value is maintained at this value, the control state is returned to the mode 1 while gradually decreasing the value.

On the other hand, when the manual mode is selected by the automatic switch (SW, ), the chaff opening degree and the milling air volume are determined regardless of the information from the grain rod detection sensor (S0) and the vehicle speed sensor (Sl). Each setting device (S<
), (Ss) to maintain the target value set.

However, when selecting this manual mode, each setting device (
If the target value set in S4) and (S5) is set to a smaller value than the set value corresponding to the state where the processing amount is small, the above-mentioned As the grain rod detection sensor (SO) changes from OFF to ON, the buzzer (34) is activated to issue an alarm.

Note that the control device (33) repeatedly executes each process described above until the power is turned off.

[Another example]

In the above example, a case was illustrated in which both the chaff opening degree and the turning air volume were configured to be automatically adjusted, but the control configuration was simplified and implemented so that only one of the chaff opening degree and the turning airflow rate was automatically adjusted. You can.

Furthermore, in the above embodiment, the number of revolutions of the winch (11) is changed and adjusted using a pulley-type transmission, but the number of revolutions of the winnow (11) is changed and adjusted using an electric motor. The number of rotations of the winnowing machine may be varied by driving it with a motor or the like to change and adjust the amount of air flow, or the number of rotations of the winnowing machine (11) may be kept constant and the amount of air supplied to the winnowing machine (11) may be varied to adjust the amount of airflow. It may be changed and adjusted, and the specific configuration for changing and adjusting the air flow rate can be changed in various ways.

Further, in the above embodiment, the amount of leaked material from the handling room (A) is detected based on the vehicle speed, but
For example, the detection may be based on the torque of the handling cylinder (12) or the drive torque of the auger (8) or the scraping and conveying section (9), and the processing material amount detection means ( The specific configuration of 100) can be changed in various ways.

Further, in the above embodiment, a contact-type grain rod detection sensor (S0) is provided in the handling chamber to detect whether or not the handling chamber (A) is in a grain rod supply state to determine the start and end of mowing. Although the case is shown as an example, for example, the discrimination may be made based on changes in the torque of the handling cylinder (12) or changes in the drive torque of the auger (8) or the scraping conveyance section (9). The specific configuration of the grain rod supply state detection means for determining the start and end of mowing can be modified in various ways.

Further, in the above embodiment, the present invention is applied to a full-culm input type combine harvester, but the present invention can also be applied to a so-called self-loading type combine harvester, and the specifics of the sorting device (B) are The specific configuration of each part, such as the structure for changing and adjusting the configuration and its sorting state, can be changed in various ways.

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 drawings]

The drawings show an embodiment of the sorting control device for a thresher according to the present invention, in which FIG. 1 is a block diagram of the control configuration, FIG. 2 is a flowchart of control operation, and FIG. 3 is an explanatory diagram of the chaff opening setting range. Figure 4 is an explanatory diagram of the setting range of the airflow rate, Figure 5 is an explanatory diagram of the relationship between the chaff opening and vehicle speed when the grain rod is wheat, and Figure 6 is an explanatory diagram of the relationship between the airflow rate and vehicle speed. Figure 7 is an explanatory diagram of the relationship between chaff opening and vehicle speed when the grain rod is rice; Figure 8 is an explanatory diagram of the relationship between chaff air volume and vehicle speed;
The figure is an explanatory diagram of the relationship between chaff opening and vehicle speed when the grain rod is soybean, Figure 10 is an explanatory diagram of the relationship between chaff air volume and vehicle speed, Figure 11 is an explanatory diagram of the control mode, and Figure 12 is an explanatory diagram of the relationship between chaff opening and vehicle speed when the grain rod is soybean. Figure 13 is a cutaway side view of the combine harvester, and Figure 14 is a cutaway front view of the handling room.
The figure is an explanatory diagram of the chaff opening degree adjustment mechanism, and FIG. 15 is an explanatory diagram of the toe air volume adjustment mechanism. (A)... Handling room, (B) Sorting device, (SO) Grain rod supply state detection means, (10
0)... Processing material amount detection means, (101)...
...control means.

Claims (1)

[Claims] A sorting device (
B), a processing material amount detection means (100) for detecting the leakage processing material amount from the handling room (A), and whether or not grain rods are being supplied to the handling room (A). A grain rod supply state detection means (S_0) is provided for detecting whether the grain rod is supplied, and when the grain rod is in the grain rod supply state, a sorting state is established in which the amount of waste to be processed increases as the amount of leakage processing material increases; The information on the grain rod supply state detection means (S_0) and the processing material amount detection means (100) is changed so that the grain rod supply state detection means (S_0) and the processing material amount detection means (100) are set to a setting sorting state corresponding to a state in which the processing material amount is small as the processing material amount changes from the rod supply state to the non-supply state. A sorting control device for a thresher is provided with a control means (101) that automatically adjusts the sorting state of the sorting device (B) based on the control means (101).
1) is to gradually shift the sorting state from a sorting state corresponding to the amount of leaked material to a set sorting state corresponding to a small amount of material to be processed as the grain rod supply state changes to a non-supply state. A sorting control device for threshing equipment consisting of: