JPH03119921A - Selection controlling apparatus of thresher - Google Patents

Abstract

PURPOSE:To control a thresher in optimum selection state according to the kind of treating material by making the selection state of selector to be switchable according to the kind of treating material. CONSTITUTION:A winnower 11 having controllable airflow ratesupplies selection air flow to a selection apparatus B for selecting the treated material spilled from a threshing chamber A. The thresher is provided with a means for detecting the amount of treated material spilled from the threshing chamber A and with a controlling means for automatically control the airflow rate based on the information transmitted from the treated material detection means in such a manner as to increase the airflow rate according to the increase of the spilled treated material. The controlling means is made to be switchable between the 1st controlling state to automatically control the airflow rate accord ing to the amount of spilled material and the 2nd controlling state to keep the airflow rate to a prescribed level. The thresher can be controlled in the optimum selection state according to the kind of the treating material by this apparatus.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a method in which a winnowing machine that blows sorting air to a sorting device for sorting out leakage from a handling room is provided so that the amount of air blown can be freely changed and adjusted. and a processing material amount detecting means for detecting the amount of material to be leaked from the handling room, and a processing material amount detecting means for detecting the amount of material to be processed leaking from the handling room, and a method for detecting the amount of air to be blown based on information of the material amount detecting means, such that the amount of air to be blown increases as the amount of material to be leaked is increased. The present invention relates to a sorting control device for a thresher equipped with a control means for automatically adjusting air volume.

[Conventional technology]

Conventionally, in the above-mentioned type of sorting control device for a threshing machine, the amount of air blown from the winnowing machine was automatically adjusted in accordance with the amount of waste material leaking from the handling room, regardless of the type of material to be threshed.

[Problem to be solved by the invention]

However, for example, when the processed material is wheat or soybeans, the grains are heavier than when the processed material is rice, so if the amount of leakage processed material is small, the air flow rate may be reduced depending on the amount of processed material. In this case, there is a possibility that a proper sorting state cannot be maintained. In addition, when the processed material is wheat, the amount of straw is larger than when it is rice, and the condition is slippery, so if the amount of air blowing is small, it is easy for straw waste to get mixed in with the grains to be sorted and collected. There is a disadvantage.

The present invention has been made in view of the above-mentioned circumstances, and an object thereof is to enable automatic adjustment of the sorting state of a sorting device depending on the type of material to be processed.

[Means to solve the problem]

In the sorting control device for a threshing device according to the present invention, a winnowing machine for blowing sorting air to a sorting device for sorting waste material leaked from a handling room is provided so that the amount of air blown can be freely changed and adjusted. A processing material amount detection means for detecting the amount of leaked material to be processed; and a control means for automatically adjusting the air blowing amount based on information of the processing material amount detecting means so that the air blowing amount increases as the leaking processing material amount increases. and,
Its characteristic structure is as follows.

A first characteristic configuration is that the control means has a first control state in which the air blowing amount is automatically adjusted according to the leakage processing amount, and a second control state in which the air blowing amount is maintained at a preset setting value. The main point is that it is configured so that it can be switched freely.

Moreover, the second characteristic configuration is provided with a chaff sieve that can freely change and adjust the interval between the strip-like members arranged in parallel in the direction of transporting the processed material,
The control means adjusts the band according to the amount of waste to be treated so that the interval between the band plate-shaped members becomes narrower as the amount of waste to be treated becomes larger in each of the first control state and the second control state. The main feature is that the spacing between the plate members is automatically adjusted.

[For production]

As mentioned above (when the processed material is wheat or soybeans, the grain is heavier than when it is rice. Also, when the processed material is wheat, there is more straw than when it is rice, and Since the straw is slippery, it is better to maintain proper sorting conditions if the amount of air blown by the winnowing machine is not automatically adjusted according to the amount of material leaking from the handling room.

Therefore, in the first characteristic configuration, it is possible to freely switch 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 amount of air blown is maintained at a preset value. By configuring this, the sorting state of the sorting device can be switched depending on the type of material to be processed.

In the second characteristic configuration, the interval between the chaff sieves, which can freely change and adjust the interval between the strip-like members arranged in parallel in the direction of transporting the processed material, is
By automatically adjusting according to the amount of leaked material, the sorting state of the sorting device can be automatically adjusted more accurately.

〔Effect of the invention〕

In the first characteristic configuration, since the sorting state of the sorting device can be switched according to the type of the object to be processed, it has become possible to control the sorting state to an appropriate sorting state depending on the type of the object to be processed.

In addition, in the second characteristic configuration, the sorting state of the sorting device can be automatically adjusted in accordance with the amount of leaked material while switching the sorting state of the sorting device depending on the type of material to be processed, so that control accuracy can be improved. reached.

〔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 front section thereof. 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) for raking the planted grain culm toward the rear side of the machine body (■), and a raked-in grain culm. A clipper-type cutting blade (7) that cuts off the base of the stock, an auger (8) that receives the harvested grain culm and sends it out to the rear of the machine (V), and a raking machine with three rotating drums installed side by side. It is composed of a transport section (9).

The threshing device (3) includes a handling chamber (into which all the cut grain culms transported by the scraping and transporting section (9) are thrown).
A) and a sorting device (B) equipped with an oscillating sorting plate (10) that acts to sort out leakage treatment and processed materials from the handling room (A).
and a winnow (11) that blows the sorting air.

The handling chamber (A) includes a handling barrel (I2) having a rotation axis that extends along the front-rear direction of the fuselage (V) and tilts upward toward the rear.
) 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 culm entrance side of the handling room (A) indicates whether or not the handling room (A) is in the grain culm supply state. A contact-type grain culm detection sensor (
SO) is installed.

To explain the grain culm detection sensor (SO), it is swingable around an axis parallel to the rotational axis of the handling barrel (12) so as to contact and act on 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. That is, when the grain culm is supplied to the handling chamber (A), the contact piece (15) comes into contact with the material to be handled by the handling cylinder (12) and the switch (17) is turned on. If it is detected that the grain is being supplied, and the switch (17) is turned off, it can be detected that the grain culm is not being supplied. However, although not described in detail, since the grain culm comes into contact with the contact piece (15) intermittently, the switch (17) is not 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 that detects the operation amount of the operating rod (24) by the electric motor (Ml) as the chaff opening. A sensor for
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.
The input turn IJ (28>) that rotationally drives the input pulley (28) is configured as a split pulley, and the operating arm (29) that changes the diameter of the input pulley (28) is connected to the electric motor (M
2) so as to be rotatably operated by
By adjusting the number of revolutions of the winnowing machine (11) to high or low using the electric motor (~1□), the amount of air blown (sometimes referred to as the amount of air blowing in the following explanation) can be adjusted to be strong or weak. It has become. In addition, in the figure, (30
) is the drive belt of the input pulley (28), and (31) is the link mechanism (31) driven by the electric motor (M2).
32) and the operating arm (29), and (S3) is a potentiometer-type sensor for detecting air flow rate that detects the amount of operation of the operating arm (29) as the air flow notification; The linkage mechanism (
32).

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. Although the details will be described later, basically, the sorting is performed according to the amount of leaked material so that the larger the amount of the leaked material, the larger the chaff opening degree and the stronger the toumi fudan. It is designed to automatically adjust the state.

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 culm detection sensor (So), the crawler traveling device (
1) a vehicle speed sensor (Sl) that detects the vehicle speed based on the driving rotation speed; the chaff opening detection sensor (S2);
A sensor for detecting the air flow rate (S3), and a ρ chaff opening setting device (S4) for manually setting the upper limit of the chaff opening.
), and a wind base setting device (S5) for manually setting the lower limit of the above-mentioned I/Lami air volume are connected.

However, the amount of airflow is set as the number of rotations of the winnow (11). In the figure, (SW,)
(S4) and (S5) include an automatic mode for automatically adjusting the chaff opening degree and the tossing air volume according to the amount of leaked material, and each of the setting devices (S4) and (S5)
An automatic switch (SW2) is used to select the manual mode to maintain the target value set by the handling room (SW2).
A) Grain culm type selection switch for instructing whether the grain culm to be supplied is rice, wheat, or soybean, (34)
is the setting device (S4) when the manual mode is selected.

(S,) This is an alarm device as an alarm means that activates an alarm if the setting of the target value by (S,) is incorrect.

That is, by using the control device (33), the handling room (
A) Processing material amount detection means (
100), and the various information set and stored in advance and the information of the various sensors are set so that the sorting state corresponds to a larger sorting state as the amount of leaked material from the handling room (A) increases. 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 vehicle speed of the combine increases, the amount of grains supplied to the handling room (A) increases, and as a result, the amount of grain supplied to the handling room (A) increases.
The amount of waste to be treated by leakage becomes a dog. 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 air flow rate are determined according to the vehicle speed detected by the vehicle speed sensor (Sl) with reference to the target values set by the setting devices (S, ) and (35). By correcting the sorting device (
The sorting state is automatically adjusted so as to be in the sorting state B) or a sorting state according to the amount of leakage to be processed.

To explain the target value set by the setter (S,), (S,), as shown in FIG. When operated to the minimum value, it becomes a value corresponding to a slightly open state from a fully closed state, and the chaff opening setting device (S
l) so that the maximum value of the chaff opening is the maximum value of the chaff opening.
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).
5) is set 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, if the grain culms supplied to the handling room (A) are wheat or soybeans, the mill air flow rate is the target value set by the mill air flow rate setting device (S5) regardless of the amount of leaked material. I try to keep it that way.

To explain further, when the grain culm 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 culm is rice, the chaff opening degree is adjusted to the closed side as the vehicle speed decreases, as shown in FIG. 7, as in the case of wheat. (S
The opening degree is automatically adjusted according to the vehicle speed with the target value according to (1) as the upper limit, and the air flow rate is set so that the air flow rate becomes stronger as the vehicle speed increases, as shown in FIG. The target value set by the controller (s5) 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 culm is soybean, 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 windage is adjusted as shown in Figure 10. ni, lo
The target value set by the air flow setting device (S5) is maintained within the range from oopm to 120orpm.

In other words, in the automatic mode, the control means (101) controls the winnowing (11) according to the type of grain culm 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.

Although not described in detail, since the winnow (11) is configured to change the rotation speed using a split IJ type transmission, even when the automatic mode is selected, the winnow (11) 11) is smaller than a preset value, it is determined that the threshing device (3) is in a non-operating state, 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 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 and winding air volume are maintained at the current chaff opening and winding air volume until the set time elapses, and then the mode is shifted to mode 1 while gradually changing the chaff opening to a small degree and the winding air volume 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 culm specified by the grain culm type selection switch (SW2) is wheat or soybean, only the chaff opening degree is automatically adjusted, and the chaff opening is adjusted by the setting device (S5). The set target value will be maintained. The time required to maintain the chaff opening at the current value is longer for rice than for wheat (
The minimum value when returning to mode 1 is such that the value is more dog in the case of rice than in the case of wheat. In the case of rice, when shifting from mode 3 to mode 1, the rice fleas are reduced in stages.

On the other hand, when the grain culm is soybean, in any of the mote 1, mode 2, and mode 3, the chaff opening degree is automatically adjusted according to the vehicle speed, and the chaff air volume is adjusted by the setting device (S5). ) to maintain the target value set by

Incidentally, the start of mowing and the end of mowing are determined based on information from the grain culm 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 mote is selected.

When the automatic mode is selected, it is determined whether or not the grain is being harvested based on the information of the grain culm detection sensor (SO), that is, whether the grain culm is being supplied to the handling room (A). Determine whether it exists or not.

When the grain culm is in the non-supply state, it is determined that the state is 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, if the grain culm selection switch (SW2) indicates wheat or soybean, the grain air volume is maintained at the target value set by the setting device (S5).

When the grain culm is in the feeding state, it is determined whether the grain culm is being reaped or has transitioned from being reaped to the end of reaping based on the change in the ON10FF state of the grain culm detection sensor (S,). do.

When the grain culm detection sensor (So) changes from OFF to ON and determines the start of reaping, the state shifts to the control state of the mote 2, and the chaff is controlled based on the detection information of the vehicle speed sensor (Sl). The opening degree and the above-mentioned air flow rate are automatically adjusted. However, the grain selection switch (
If the instruction given by SW2) is for wheat or soybeans, the grain air volume is set by the setting device (S5) even during reaping.
This will maintain the target value set by.

When the grain culm detection sensor (So) changes from ON to OFF to determine 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 the value of , the control state is returned to the mode I 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 corn air flow rate are determined regardless of the information from the grain culm detection sensor (So) and the vehicle speed sensor (Sl). Each setting device (S4
), the target value set by (s5) is maintained.

However, when selecting this manual mode, each setting device (
34), If the target value set by (Ss) is set to a smaller value than the setting value corresponding to the state where the processing amount is small, in order to notify that there is an erroneous operation,
As the grain culm 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-mentioned embodiment, a case has been exemplified in which both the chaff opening degree and the amount of airflow at the steering wheel are automatically adjusted, but the control configuration may be simplified so that only the amount of airflow at the steering wheel is automatically adjusted.

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 possible to change and adjust the scenery, and the specific configuration for changing and adjusting the landscape 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 culm detection sensor (So) for detecting whether or not the handling chamber (A) is in the grain culm supply state is provided in the handling chamber to determine when the mowing starts and when the mowing ends. 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 for determining the start and end of mowing can be changed 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. Fig. 4 is an explanatory diagram of the setting range of the turmeric air volume, Fig. 5 is an explanatory diagram of the relationship between the chaff opening degree and vehicle speed when the grain culm is wheat, and Fig. 6 is an explanatory diagram of the relationship between the turbid air volume and vehicle speed. Figure 7 is an explanatory diagram of the relationship between chaff opening and vehicle speed when the grain culm is rice, Figure 8 is an explanatory diagram of the relationship between chaff air volume and vehicle speed, and Figure 9
The figure is an explanatory diagram of the relationship between chaff opening and vehicle speed when the grain culm 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 culm 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, (11)... Chaff sieve, (19)... Chaff sieve, (19a)...・・・・・・Strip member, (1
)...interval, (100)...processed material amount detection means, (101)...control means.

Claims (1)

[Scope of Claims] 1. A winnow (11) for blowing sorting air to a sorting device (B) for sorting and treating leaked material from the handling room (A) is provided so that the amount of air blown can be freely changed and adjusted. , processing material amount detection means (100) for detecting the amount of processing material leaking from the handling room (A);
A threshing device provided with a control means (101) that automatically adjusts the amount of air blown based on information from the amount detection means (100) such that the amount of air blown increases as the amount of leaked material increases. In the sorting control device, the control means (101) maintains a first control state in which the air flow rate is automatically adjusted according to the amount of leaked material and a preset setting value in which the air blow rate is maintained. A sorting control device for a threshing device configured to freely switch between a second control state and a second control state. 2. The sorting device (B) is equipped with a chaff sieve (19) that can freely change and adjust the interval (t) between strip members (19a) arranged in parallel in the direction of transfer of the processed material, and the control means (101)
In each of the first control state and the second control state, the larger the amount of waste to be treated by leakage, the more the strip member (19a
), the sorting control device for a threshing device is configured to automatically adjust the interval (t) between the strip members (19a) according to the amount of leaked material so that the interval (t) between the two is large. .