JPH0347014A - Selection control device of thresher - Google Patents

Abstract

PURPOSE:To properly select threshing and selection by automatically controlling a selection state based on detected information of recognized information of recovered amount detecting means. CONSTITUTION:A selector to select a treated material from a handling chamber is provided with a control means 43 to automatically operate actuators M1 and M2 for winnower to regulate a selecting state of the selector in such a way that the selecting state is adjustable depending upon the amount to be treated and the selecting state is made into a selecting state suitable for the increased amount to be treated as the amount to be treated is increased. Then a recovered amount detecting means 32 discovers a recovered amount of grain granule selected and recovered by the selector per unit time. Further a control means 43 adjusts the selector to a selecting state corresponding to the increased amount as the recovered amount per unit time is enlarged based on information of the recovered amount detecting means 32. Consequently, proper threshing and selecting control can be carried out.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is characterized in that a sorting device for sorting the processed materials from a handling chamber is provided so that the sorting state can be freely adjusted according to the amount of the processed materials, and as the amount of the processed materials increases, The present invention relates to a sorting control device for a thresher, which is provided with a control means for automatically operating an actuator that adjusts the sorting state of the sorting device so that the sorting state corresponds to a large amount of material to be processed.

[Conventional technology]

In order to automatically adjust the sorting state by detecting the amount of the processed material, conventionally, the amount of husks to be processed per unit time in the handling room is determined based on, for example, the thickness of the husks being transported by the threshing feed chain. This was done by detecting the

[Problem to be solved by the invention]

However, the thickness of the culm and the amount of grain attached to it are not necessarily proportional, and vary depending on the species, region, and individual.

Therefore, it is not accurate to estimate the amount of material to be processed based on the amount of shell culms, and there is a risk that sorting control cannot be performed accurately.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to enable accurate selection control.

(Means for Solving the Problems) In the sorting control device for a threshing device according to the present invention, a sorting device for sorting the processed material from the handling chamber is provided so that the sorting state can be freely adjusted according to the amount of the processed material, and the said processing amount is A control means is provided for automatically operating an actuator that adjusts the sorting state of the sorting device so that the sorting state corresponds to a larger amount of material to be processed. recovery amount detection means for detecting the amount of grain collected per unit time of grains sorted and collected, and the control means is configured to detect the amount of grain collected per unit time based on the information of the collection amount detection means. The present invention is configured to adjust the sorting state to correspond to a large amount of material to be processed, and its functions and effects are as follows.

[Function] In other words, by effectively utilizing the fact that the amount of grains sorted and collected by the sorting device per unit time corresponds to the amount of processed material, the control means The actuator is automatically activated.

〔Effect of the invention〕

Therefore, since the sorting state is automatically adjusted based on the information detected by the recovered amount detecting means, it is possible to perform more accurate threshing sorting control.

〔Example〕

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

As shown in Figure 6, the combine harvester is equipped with a crawler traveling device (2) on the machine body (1), which raises and reaps the planted grain culms, and also transports them rearward and horizontally. A reaping unit (4) that changes its posture to a fallen position and delivers it to the feed chain (3), a threshing device (5) that threshes and sorts and collects the husks that are pinched and conveyed by the feed chain (3), and the A husking device (which sends out the grains threshed by the threshing device (5) to a storage tank (6)
7).

As shown in Fig. 7, the threshing device (5) includes a handling chamber (A) that houses a handling cylinder (8) that handles and processes the cut husks that are conveyed by the feed chain (3); A swinging sorting plate (9) that acts to sort out leakage from the chamber (A)
and a sorting device (
B). At the lower part of the handling chamber (A), there is a receptacle y4 for leakage of threshed material along the lower outer periphery of the handling barrel (8).
(11) is provided, and an opening (12) for discharging the threshed material remaining in the handling chamber (A) is formed at the rear side of the receiver '4M (11).

However, in the following description, the processed material leaking the light m (11) and the processed material discharged through the opening (12) are collectively referred to as the leaked processed material from the handling chamber (A).

The swing sorting plate (9) includes a grain pan (13), a chaff sieve (14), and a stroke rack (15) arranged sequentially from the front to the rear, and further includes a grain pan (13), a chaff sieve (14), and a stroke rack (15). ), an auxiliary grain pan (16) and a grain sheave (17) are provided in order in the front-rear direction, and these are attached to a pair of left and right side plates (
18).

In addition, at the bottom of the sorting device (B), the grain sieve (
17), which collects the grains leaking from the grain sieve (17) as the first material; and the straw which falls beyond the end of the straw rack (15) and the end of the grain sieve (17). A second storage part (20) is provided for collecting the processed material (abbreviated as second material in the following explanation) mixed with waste and grains and returning it to the handling room (A). ing.

Note that (21) in the figure is a thrower for returning the second item to the handling room (A).

To explain the chaff sieve (14), as shown in the 8th article, a plurality of band plate-like members (14a) arranged in parallel in the processing material transfer direction (rightward in FIG. 7),
The operating rod (22) is rotatably attached to the left and right side plates (18) using its upper end as a fulcrum, and the operating rod (22) pivotally attached to the lower end of each strip member (14a) is pushed and pulled in the front-rear direction. By operating the strip member (14a
) (in the following description, it may be abbreviated as chaff opening degree) can be changed and adjusted.

An electric motor (Ml) is provided as an actuator for adjusting the interval to change and adjust the chaff opening,
A swing arm (23a) connected to the electric motor (Ml) via a gear-type linkage mechanism (23) and the operating rod (22) are interlocked with each other by a release wire (24). In the figure, (25) is a spring that urges the chaff to return toward the smaller side, and (S2) is the operating rod (22) driven by the electric motor (Ml).
a chaff opening detection potentiometer that detects the operating amount of the chaff as the chaff opening;
It is attached to the pivot point of 3a).

As shown in FIG. 9, an intake port (26) for adjusting the amount of air blown below the grain sieve (17) as screening air is formed below the winnowing hole (10). A lid (27) that opens and closes (26) is rotatably provided around a support shaft (P) by an operating arm (2). That is, by rotating the operating arm (28), the air intake port (
By changing the opening degree of the chisel (10)
The airflow rate (sometimes abbreviated as "transmission airflow rate" in the following description) can be changed and adjusted.

An electric motor (M2) is provided as an actuator for the 11 air blowers that change and adjust the air flow rate, and the electric motor (M2) has a gear-type linkage mechanism (29).
The swinging arm (29a) and the operating arm (28), which are connected via the link (30), are interlocked and connected.

In addition, in the figure, (S3) is a potentiometer for detecting the amount of airflow for detecting the amount of operation of the operation arm (28) as the amount of airflow;
It is attached to the cardinal branch of.

In other words, the sorting device (B) adjusts the chaff opening degree to a large or small degree, and adjusts the volume of airflow to a strong or weak degree, depending on the amount of leakage from the handling room (A). It is configured so that the sorting state can be adjusted.

Next, a control configuration for detecting the amount of grains sorted and collected by the sorting device (B) and controlling the sorting device (B) will be explained.

As shown in Fig. 1, units of grains to be sorted and collected by the sorting device (B) are placed above the storage tank (6), called a so-called grain hopper, which stores the threshed grains. Collection amount detection means for detecting the collection amount per hour (3
2) is provided. Then, this recovery amount detection means (
32) is connected to the upper end of the shelling device (7) for collecting the threshed grains.

This recovery amount detection means (32) is a sensor box (33).
), a pressure sensor (34) attached above the inner peripheral surface of the side wall of the sensor box (33), and a humidity sensor (S4) provided in the center of the sensor box.

The sensor box (33) includes a cylinder (35) and a cylinder (3).
It is comprised of a rotatable shutter (37) for closing the lower opening (36) of 5), a shutter opening/closing drive part (38) provided at the pivot portion of the shutter (37), and the like. The fried shell device (7) is constructed by incorporating a vertical screw conveyor and a horizontal screw conveyor therein. The shutter opening/closing drive unit (38) is
Large and small gears (39) and (40) meshed with each other,
It is composed of an electric motor (41) that drives a small gear (40), and a potentiometer (42) for detecting the shutter opening/closing angle attached to the shaft of the motor (41). The shutter (37
) opening and closing operations are performed.

A control device (43) as a control means includes a microcomputer, an input/output interface, etc., and controls the chaff opening degree and the winnowing air volume. In other words, this control device W (43)
The stock switch (44) detects the presence or absence of the husks that are harvested and transported to the threshing device (5), and the pressure sensor (
34), the humidity sensor (S4), the potentiometer for detecting the shutter opening/closing angle (42), the potentiometer for detecting the chaff opening (S2), the potentiometer for detecting the air flow rate (S, ), etc. The detection information is input, and the control device (43) changes the electric motor (gate) and the flow rate for adjusting the opening of the chaff sheave based on this detection information and pre-stored information. It is designed to control the operation of the electric motor (M2) etc. to be adjusted.

Note that the humidity sensor (S4) is located at the center of the sensor box (33) as shown in FIG. It is desirable to install it so that

Next, the control operation will be explained based on FIGS. 3 and 4.

As shown in FIG. 3, when the sensor box (33) is activated, the shutter (37) closing the bottom (36) of the sensor box (33) is opened by a command from the control device (43), and the sensor The grains remaining inside the box (33) are discharged to the storage tank (6). After that, the shutter (37) is closed.

Next, it is determined whether the sensor (34) senses or detects grains. If the determination is NO, time counting processing is performed. This time counting process is performed using a pressure-sensitive sensor (34
) is a process that measures the time until detection is detected.

If the determination is YES, a flow rate corresponding to the amount of grains to be sorted and collected per unit time is determined based on the time counted in the time counting process. This flow rate calculation is performed by dividing the amount of grains (determined in advance) stored in the sensor box (33) until the pressure sensor (34) is turned on by the count time. After determining the flow rate, reset the timer, open the shutter (37), and open the sensor box (33).
) and close the shutter (37) again.

After performing the above-mentioned time counting process or after performing the above-mentioned process such as flow rate calculation, adjustment control of the chaff opening degree and the wind volume is executed.

Next, it is determined whether or not the work has been completed, and if not, the process moves to the determination process of the pressure sensor (34).

In addition, as mentioned above, the grain recovery amount detection means (32) is configured using the function of the control device (43).

In the adjustment control of the chaff opening degree and the air flow rate, as shown in FIG. 4, first, a process is performed to determine whether or not the stock switch (44) is in the ON state. Stock switch (44) is OFF
In the case of the F state, processing is performed to set and adjust the chaff opening degree and the wind volume to relatively small amounts set in advance.

If the stock switch (44) is in the ON state, a process is performed to determine whether or not the stock switch (44) has been turned on for the first time, and if it is the first time, flag F is set to 1 and the subroutine returns to the main routine. and return.

If the stock switch (44) is ON and the ON state is not the first time, a flag is determined and then a determination is made as to whether the set time has elapsed. This set time refers to the time until the amount of leaked waste from the handling room (A) reaches a predetermined amount. If the set time has not elapsed, the subroutine returns to the main routine, and if the set time has elapsed, the flag F is set to 0, and the chaff opening degree and the toe air volume are adjusted based on the flow rate information.

As shown in FIG. 5, the chaff opening degree and the amount of air flowing through the chaff are adjusted in stages according to the flow rate determined as described above. However, even if the flow rate is the same, depending on the wet coal condition of the collected grains, if the humidity is high, the chaff opening and the amount of airflow will be increased somewhat as shown in the upper dashed line in the figure, or if the humidity is low. In this case, the target value is changed based on the humidity detection signal obtained from the humidity sensor (S4) so that the chaff opening degree and the air flow rate are slightly reduced as shown by the broken line below. There is.

[Another Embodiment] FIG. 10 shows another embodiment of the present invention, in which the side wall (6B) of the storage tank (6) is used as part of the side wall of the sensor box (46). A sensor box (46) is configured in the storage tank (6) in common. Inside the sensor box (46), a pressure sensor (47) is provided at the top of the side wall, and an opening/closing shutter (49) is rotatably attached to the bottom (48).

With this configuration, the space within the storage tank (6) can be used effectively and more collected grains can be stored.

Although reference numerals are written in the claims section and claims 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 threshing machine according to the present invention, and FIG. 1 is a block diagram of the control configuration, FIG. 2 is a cross-sectional plan view of the sensor box showing the position of the humidity sensor, and FIGS. Figure 4 is an explanatory diagram of the control operation, Figure 5 is an explanatory diagram showing the target values of the chaff opening degree and threshing air volume corresponding to the flow rate, Figure 6 is an overall side view of the combine harvester, and Figure 7 is the cut size of the threshing device. A side view, FIG. 8 is an explanatory diagram of the chaff opening adjustment mechanism,
FIG. 9 is an explanatory diagram of a mechanism for adjusting the air flow rate, and FIG. 10 is a longitudinal sectional side view showing another embodiment. (A)... Handling room, (B)... Sorting device, (43)... Control means, (32)...
・Collection amount detection means.

Claims (1)

[Claims] A sorting device (B) for sorting the material to be processed from the handling chamber (A) is provided so that the sorting state can be adjusted according to the amount of material to be processed, so that the larger the amount of material to be processed, the more the sorting state corresponds to the amount of material to be processed. The sorting control device for a threshing device is provided with a control means (43) for automatically operating actuators (M_1, M_2) for adjusting the sorting state of the sorting device (B), Collection amount detection means (
32), and the control means (43) is configured to adjust the sorting state to correspond to a larger amount of processed material as the amount collected per unit time increases based on the information of the collected amount detection means (32). A sorting control device for threshing equipment consisting of: