JPH04281716A - Sorting controller of thresher - Google Patents

Abstract

PURPOSE:To obtain a sorting control device capable of carrying out good sorting by suppressing occurrence of the third loss even when operation of a thresher is started in a state where a material to be treated in previous operation is left in the thresher. CONSTITUTION:A threshing detection means S4 for detecting whether a thresher 2 is operated or not and thickness detection means for detecting thickness of a material to be treated on an oscillating and sorting plate 15 equipped in a sorting device B are provided in a sorting controller. Then when detection data of a threshing detection means S4 is changed from non-operation to operation, treating ability of the sorting device B is controlled so as to become larger, as the thickness of the above-mentioned material to be treated become larger, based on detection data of thickness detection means S2 until a treated material- detecting means S0 detects feed of the material to be treated.

Description

[Detailed description of the invention]

0001

[Industrial Field of Application] The present invention provides processing material detection means for detecting whether processing material is being supplied to a handling chamber, supply amount detection means for detecting the amount of grain culm supplied to the handling chamber, and Based on the detection information of the processed material detection means and the supply amount detection means, when the processed material is being supplied to the handling chamber, the processing capacity of the sorting device is adjusted to be greater as the grain culm supplied amount increases. The present invention relates to a sorting control device for a thresher, which is provided with a control means.

0002

[Prior Art] Conventionally, from the time when the threshing clutch is turned on to start the operation of the threshing device until the material to be processed is actually supplied to the handling chamber, the processing capacity of the sorting device is used to transfer the processing capacity to the processing room. The ability was adjusted so that it corresponds to a state where there is no.

0003

Problems to be Solved by the Invention At the end of the operation, the operation of the threshing device may be stopped while the processed material still remains in the threshing device. In this case, when the threshing device starts operating next time, if the processing capacity of the sorting device corresponds to the state where there is no material to be processed in the sorting device, as in the above-mentioned conventional technology, a so-called third loss occurs. It turns out. The purpose of the present invention is to solve the above-mentioned conventional drawbacks and to turn on the threshing clutch.
To provide a sorting control device for a threshing device that can perform good sorting even from when the threshing device starts operating until the material to be processed is actually supplied to a handling room.

0004

[Means for Solving the Problems] In order to achieve this object, the characteristic structure of the sorting control device for a threshing device according to the present invention is as follows:
A threshing detection means for detecting whether the threshing device is operating or not, and a thickness detection means for detecting the thickness of the processed material on a swinging sorting plate provided in the sorting device, and the control means , when the detection information of the threshing detection means changes from non-operation to operation, based on the detection information of the thickness detection means until the processing material detection means detects the supply of processing material,
The processing capacity of the sorting device is adjusted to increase as the thickness of the object increases.

[0005]

[Operation] Optimal sorting can be performed when the thickness of the processed material on the swinging sorting plate provided in the sorting device and the processing capacity of the sorting device are in an appropriate relationship. Therefore, by adjusting the throughput of the sorting device to be greater as the thickness of the workpiece increases based on the detection information of the thickness detecting means, the thickness of the workpiece and the throughput of the sorting device are adjusted to have an appropriate relationship. can be approached.

[0006]

[Effect of the invention] Since the thickness of the processed material and the processing capacity of the sorting device can be brought close to the appropriate relationship, the processing time from the start of operation of the threshing device until the processed material is actually supplied to the handling room is It is possible to perform good sorting even during a long period of time.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a sorting control device for a thresher mounted on a combine harvester will be described below with reference to the drawings. As shown in FIG. 9, the combine is equipped with a reaping section 4 at the front of the machine, which includes a pair of left and right crawler running devices 1, a threshing device 2, and a driver's seat 3.

The reaping section 4 includes a triggering device 5 that raises grain culms in the field, a cutting blade 6 that cuts the stock base of the raised grain culms, a vertical conveyance device 8 that transfers the harvested grain culms to the feed chain 7 of the threshing device 2; and an auxiliary conveyance device 9 for conveying the harvested grain culm to the vertical conveyance device 8. In the figure, S0
is a stock head sensor as a processing material detection means that comes into contact with the stock base of the harvested grain culm at the transport start end of the vertical transport device 8 and detects the presence or absence of the grain culm to be transported to the threshing device 2.

As shown in FIG. 10, the engine E and the drive case 10A of the crawler traveling device 1 are interlocked and connected via a belt tension type main clutch 10B and a traveling transmission 10 that includes forward/reverse switching. At the same time, the engine E and the threshing device 2 are interlocked and connected via a belt tension type threshing clutch 11. Also, drive case 1
A part of the output transmitted to 0A is transmitted to the reaping section 4 via a belt tension type reaping clutch 12. A vehicle speed sensor S1 is provided that detects the vehicle speed based on the output rotation speed of the drive case 10A.

As shown in FIG. 11, the threshing device 2 includes a handling chamber A that houses a handling barrel 13 that handles and processes the harvested grain culm that is pinched and conveyed from the front side of the machine body toward the rear side of the machine body by the feed chain 7. and a sorting device B, which includes a swinging sorting plate 15 that sorts the materials to be processed supplied from the handling chamber A, and a blower 16 that blows sorting air. In this embodiment, the second item is returned to the swinging sorting plate 15 and sorted. At the bottom of the handling room A, there is a handling barrel 1.
Receiving net 17 through which the threshed material leaks along the lower outer periphery of 3
is provided. The swinging sorting plate 15 consists of grenpans 18 arranged sequentially from the front of the aircraft to the rear.
, a chaff sieve 19, and a straw rack 20. Below the chaff sheave 19, an auxiliary grain pan 21 and a grain sheave 22 are sequentially arranged in the front-rear direction. Glenpan 18 to Glensieve 22
Each part is fixed between a pair of left and right side plates 23.

As shown in FIG. 12, the chaff sieve 19 includes a plurality of strip-shaped members 25 arranged in parallel in the direction of transporting the processed material.
It is formed in These band plate-like members 25 are rotatably attached to the side plate 23 with the upper end portion as a fulcrum. That is, by rotating the strip member 25 and adjusting the interval t to be large or small, the amount of material to be processed per unit time passing through the interval t can be adjusted. A motor M1 is provided on the fixed frame side of the threshing device 2 to adjust the distance t to a larger or smaller size. Operating rod 2 connected to the lower end of member 25
8 and are interlocked and connected via a release wire 29. Also provided are a spring 30 that urges the gap t toward the closing side where it becomes smaller, and a chaff opening detection potentiometer P1 that detects the adjusted state of the gap t as a change in the position of the block member 27.

Further, a thickness sensor S2 serving as a thickness detecting means for detecting the thickness of the material to be processed on the chaff sieve 19 is attached to the holding member 17A of the receiving net 17. The thickness sensor S2 includes a sensor bar 31 that is swingably suspended around a horizontal axis, and a detection section 32 that detects the swing angle of the sensor bar 31. The sensor bar 31 is connected to the downstream section 3
1A is formed into a bifurcated shape that is longer than the upstream portion 31B. In other words, the thickness of the workpiece is detected based on the angle at which the sensor bar 31 contacts and swings the workpiece on the chaff sieve 19. When the thickness of the workpiece is relatively small, the downstream section 31A When the thickness of the workpiece is relatively large, the upstream portion 31B comes into contact with the workpiece.

The fan 16 is adapted to change and adjust the amount of air blown by changing its rotational speed. To explain,
As shown in FIGS. 13 and 14, the rotating shaft 3 of the toumi 16
The input pulley 34 attached to the input pulley 3 is divided into a fixed side 34A and a sliding side 34B, forming a so-called split pulley type transmission 35. A motor M2 for adjusting the amount of air blown is attached to the fixed frame side of the threshing device 2, and an operating arm 36 for changing the speed is attached to the speed change device 35. The operating arm 36 and a top member 38 that engages with a screw shaft 37 that is driven forward and backward by the motor M2 are interlocked and connected by a release wire 39. Thus, the output of the engine E, which is transmitted to the input pulley 34 via the transmission belt 40, can be transmitted to the rotating shaft 33 by changing the speed. Further, a rotation speed sensor S3 for detecting the rotation speed of the handle 16 is provided.

Next, a control configuration for adjusting the throughput of the sorting device B by operating the motor M1 for adjusting the interval of the chaff sieve 19 and the motor M2 for adjusting the air blowing amount will be explained. As shown in FIG. 1, a control device H using a microcomputer is provided, and the control device H includes a stock sensor S0, a vehicle speed sensor S1, a thickness sensor S2, and a thickness sensor 16.
rotation speed sensor S3, threshing switch S4 as threshing detection means for detecting on/off of the threshing clutch 11, and transmission device 1.
0 is operated to the backward side, selection switch S6 to select whether the processed material is rice or wheat, engine E rotation speed sensor S7, chaff opening detection potentiometer P1, maximum A chaff opening setting potentiometer P2 that sets the chaff opening CH0 and a tow rotation speed setting potentiometer P3 that sets the maximum tow rotation speed TO0 are connected. The control device H is configured to control the operation of the interval adjustment motor M1 and the air blowing amount adjustment motor M2 based on preset and stored information and various input information. That is, the control means 100 is configured using the control device H.

First, the handling of input information will be explained. In Fig. 15, a chaff opening setting potentiometer P2 is shown.
The maximum chaff opening degree CH0 with respect to the set voltage is shown in FIG. 16, and the maximum torque rotation speed TO0 with respect to the set voltage of the torque rotation speed setting potentiometer P3 is shown in FIG. In other words, the chaff opening setting potentiometer P2 and the tow rotation speed setting potentiometer P3 are connected to the swinging selection plate 1.
It corresponds to a setting means for individually changing and setting the processing capacity of 5 and the air blow rate of 16. The vertical axis in FIG. 15 corresponds to the output voltage of the chaff opening detection potentiometer P1, with 0.5 (V) being fully closed (CHMIN) and 3.5 (V) being fully closed (CHMIN).
) corresponds to full opening (CHMAX). By the way, handling room A
Since the amount of grain supplied to the vehicle increases as the reaping speed increases, it may be assumed that the amount of grain supplied to the vehicle is proportional to the vehicle speed. In this embodiment, the vehicle speed sensor S1 corresponds to the supply amount detection means. Here, as shown in FIG. 17, the vehicle speed SP is divided into five levels SPL. Further, the detection voltage SV of the thickness sensor S2 also has eight levels SV, as shown in FIG.
It is classified into L. Level 1 corresponds to a state in which the longitudinal direction of the downstream portion 31A is substantially vertical, and level 7 corresponds to a state in which the longitudinal direction is substantially horizontal.

The operation of the control device H will be explained below. During the reaping operation (second mode described later), the reference chaff opening CHVR is basically calculated from the maximum chaff opening CH0 and the vehicle speed level SPL. The standard chaff rotation speed TOVR is calculated from the rotation speed TO0 and the vehicle speed level SPL, and the standard chaff opening CHVR and the standard chaff rotation speed TOVR are corrected based on the thickness level SVL, and the target chaff opening CH and the chaff rotation speed are determined. Find the target value TO. Then, both the chaff opening degree and the rotation speed are set to the target values CH and T.
The motor M1 for adjusting the interval and the motor M2 for adjusting the air blowing amount are operated so that the distance is 0. By the way, the reference chaff opening CHVR is determined from the value of CH0-0.4×SPL, and the reference torque rotation speed TOVR is determined from the value of TO0-100×SPL. In addition, if the set voltage of chaff opening setting potentiometer P2 is less than 4.2 (V), and the rotation speed is 500 (r
pm) The following control is activated when each of the conditions for turning on the threshing switch S4 is satisfied. Also, a case will be mainly described in which the selection switch S6 selects rice. There are the following three control modes after the starting conditions are established. A first mode in which the stock sensor S0 is turned ON for the first time after the starting conditions are met and the stock sensor S0 is turned ON until a predetermined period of time has elapsed.
A second mode is a mode in which the stock price sensor S0 is turned off after a predetermined time has elapsed, and a third mode is a mode in which the stock price sensor S0 is turned on until a predetermined time has elapsed after the stock price sensor S0 is turned off.

FIG. 19 shows the relationship between the thickness level SVL and the target value CH of the chaff opening in the first mode, and FIG. 20 shows the relationship between the thickness level SVL and the target value TO of the turning speed. That is, even in the first mode, the processing capacity of the sorting device B is adjusted to be greater as the thickness of the object to be processed becomes larger, based on the detection information of the thickness sensor S2. Note that the numbers in parentheses indicate the case of wheat (the same applies hereinafter). Further, when the state where the thickness level SVL is 1 continues for a predetermined time or more, it is determined that there is no material to be processed in the threshing device 2, and the target value CH of the chaff opening is set to 0.5, and the target value of the threshing rotation speed is set to 0.5. Let the value TO be 850 (1000). Further, the same relationship as described above in the second mode is shown in FIGS. 21 and 22. Here, the target value CHVR-1.6 of the chaff opening when the thickness level SVL is 1 corresponds to the case where the vehicle speed level SPL is 4. In other words, the vehicle speed SP is processed as 0. Further, when the thickness level SVL is 4 or more, both target values CH and TO are not changed to the smaller side. Further, when the thickness level SVL is 0, the thickness sensor S2
is determined to be abnormal and ignores the information from the thickness sensor S2. In other words, the standard chaff opening CHVR and the standard tow rotation speed TO
In addition to VR information, conventional control is performed to correct both target values CH and TO based on engine speed, etc. (For example, when the vehicle speed suddenly decelerates, both target values CH and TO are corrected until a predetermined time elapses.) (No. When the engine speed drops by a predetermined speed or more, the vehicle speed level SPL is treated as 0.) Incidentally, when the back switch S5 is turned on, the mode shifts to the third mode. Further, the same relationship as described above in the third mode is shown in FIGS. 23 and 24. Here CHE,
TOE is both target values CH and TO when stock sensor S0 changes from ON to OFF. Here, when the state in which the thickness level SVL is 1 continues for a predetermined period of time, the same process as in the first mode is performed. Also, when the thickness level SVL is 0, the output is stopped for a predetermined time, and then the target value CH of the chaff opening is set to 1.5 (0.5), and the target value TO of the number of rotations is set to 850 (TOE). Make it. Furthermore, the output is stopped until a predetermined period of time has elapsed since the stock sensor S0 was turned on.

Next, the procedure for determining both target values CH and TO will be explained based on the flowcharts shown in FIGS. 2 to 8. First, according to the procedure shown in FIG. 3, the detection voltage SV of the thickness sensor S2 is determined at which thickness level S in FIG.
Determine whether it is compatible with VL. In the figure, CNT1 is a counter for time measurement, and T is a set time (here, 2 seconds).
) are shown respectively. That is, when the detection voltage SV exceeds the threshold value for 1 (sec) or more, a flag for the corresponding thickness level SVL is set. Note that although the figure typically shows the case where the thickness level SVL is 1, the same process is performed when the thickness levels SVL are 2 to 7.

Next, it is determined whether the starting conditions are met. If the startup conditions are met, the stock sensor S
The mode is determined based on the information of 0. Note that when the thickness level SVL is 0, the target values CH and TO are determined, including the conventional control described above, but a detailed flow will be omitted.

Flowcharts for determining the target values CH and TO in the second mode are shown in FIGS. 4 to 7. First, the values of the reference chaff opening CHVR and the reference tow rotation speed TOVR are determined. Then, the target values CH and TO are determined by correcting them using the thickness level SVL. By the way, when the chaff opening reaches the upper limit CHMAX, the target value TO of the wheel rotation speed is not increased even if the vehicle speed level SPL or the thickness level SVL becomes large. In other words, even if the detection information of the amount of processed material supplied or the thickness of the processed material increases when the processing capacity of the oscillating sorting plate 15 has reached its upper limit, the air flow rate of the dust 16 will not be adjusted to the larger side. It looks like this. In addition, in the figure, CM is the previous target value of chaff opening, TM
is the target value of the previous tow rotation speed, CHMIN is the lower limit of the chaff opening, TOMAX is the upper limit of the tow rotation speed, TOMI
N indicates the lower limit of the number of rotations of the wheel.

FIG. 8 shows a flowchart for determining the target values CH and TO in the first mode and the third mode. First, the first mode flag is checked to determine whether the mode is the first mode or the third mode. In the first mode, the maximum chaff opening CH0
and the maximum rotation speed TO0, respectively, when the stock sensor S0 is turned on.
Let the target values CHE and TOE be when the switch changes from OFF to OFF. Then, set both target values CHE and TOE to thickness level S.
The target values CH and TO are determined by correcting with VL.

After determining both the target values CH and TO, the motor M1 for adjusting the interval and the motor M for adjusting the air blowing amount are operated so that the chaff opening degree and the number of revolutions of the chaff become the target values CH and TO.
Activate 2. If the startup conditions are not met,
A first mode flag is set, and it is determined whether the mode is wet mode or not. A description of target value determination based on the wetness mode will be omitted here. Note that the wet mode is determined when the set voltage of the chaff opening degree setting potentiometer P2 is 4.2 or more.

[Another Embodiment] In the above embodiment, the present invention was applied to a combine harvester, but it can also be applied to a harvester or the like. In the above embodiment, the amount of material supplied to be processed is detected based on the vehicle speed, but it may also be detected based on the thickness of the grain culm transported to the handling room A, and the specific configuration of the supply amount detection means S1 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 the drawing]

[Figure 1] Block diagram of control configuration

[Figure 2] Flowchart of control operation

[Figure 3] Flowchart of control operation

[Figure 4] Flowchart of control operation

[Figure 5] Flowchart of control operation

[Figure 6] Flowchart of control operation

[Figure 7] Flowchart of control operation

[Figure 8] Flowchart of control operation

[Figure 9] Schematic side view of combine harvester

[Figure 10] Transmission system diagram

[Fig. 11] Cutaway side view of threshing device

[Figure 12] A cutaway side view showing the configuration of the chaff sieve

[
Figure 13: Side view of main parts showing Toumi's transmission structure

[Figure 14]
Cutaway side view of Toumi's input pulley part

[Fig. 15] Explanatory diagram showing the maximum chaff opening degree with respect to the setting voltage of the potentiometer for setting the chaff opening degree

[Fig. 16] Explanatory diagram showing the maximum rotation speed of the rotation speed with respect to the setting voltage of the potentiometer for setting the rotation speed of the rotation speed.

[Fig. 17] Explanatory diagram showing the correspondence between vehicle speed and vehicle speed level

[Fig. 18] Explanatory diagram showing the correspondence between the detection voltage of the thickness sensor and the thickness level

[Fig. 19] Explanatory diagram showing the relationship between the thickness level and the target value of chaff opening in the first mode

[Fig. 20] Explanatory diagram showing the relationship between the thickness level and the target value of the rotation speed in the first mode

[Fig. 21] Explanatory diagram showing the relationship between the thickness level and the target value of chaff opening in the second mode

[Fig. 22] Explanatory diagram showing the relationship between the thickness level and the target value of the rotation speed in the second mode

[Fig. 23] Explanatory diagram showing the relationship between the thickness level and the target value of chaff opening in the third mode

[Fig. 24] Explanatory diagram showing the relationship between the thickness level and the target value of the rotation speed in the third mode

[Explanation of symbols]

15 Rocking sorting plate A Handling room B Sorting device S0 Processed object detection means S1 Supply amount detection means S2 Thickness detection means S4 Threshing detection means 100 Control means

Claims (1)

[Claims] 1. Processing material detection means (S0) for detecting whether or not processing material is supplied to the processing chamber (A);
Supply amount detection means (S1) for detecting the amount of grain culm supplied to A)
Based on the detection information of the processing material detection means (S0) and the supply amount detection means (S1), when the processing material is being supplied to the handling room (A), the grain culm supply amount is large. Indeed, this is a sorting control device for a threshing device, which is provided with a control means (100) for greatly adjusting the throughput of the sorting device (B), and detects whether or not the threshing device (2) is operating. Threshing detection means (S4) and the sorting device (B)
Thickness detection means (S2) for detecting the thickness of the processed material on the swinging sorting plate (15) provided in When the information changes from non-operation to activation, the thickness of the workpiece is determined based on the detection information of the thickness detection means (S2) until the workpiece detection means (S0) detects the supply of the workpiece. A sorting control device for a thresher configured to increase the throughput of the sorting device (B) as the grain size increases.