JPH03259013A - Screening control unit in combine - Google Patents

Abstract

PURPOSE:To provide the title control unit intended to ensure the changeover between automatic regulating and manual regulating means to be made automatically, so designed that respective means, i.e., for threshing state detection, reaping state detection and control state changeover are combined so as to make specified action. CONSTITUTION:A microcomputerized control unit 36 is provided, and to this unit, the following units are respectively connected: (1) plant foot sensor S0, (2) truck speed sensor S1, (3) chaff divergence detection sensor S2, (4) winnower airflow detection sensor S3, (5) chaff divergence setter S4 to manually set the upper limit of chaff divergence, (6) winnower airflow setter S5 to manually set the lower limit of winnower airflow, (7) threshing switch S6 as threshing state detection means to detect whether the thresher 3 is in a driven state based on the operating state of a threshing clutch 10, and (8) reaping switch S7 as reaping state detection means to detect whether the reaping pretreatment section 4 is in a driven state based on the operating state of a reaping clutch 14.

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention relates to a sorting device for sorting and processing waste material leaked from a handling chamber in a threshing device that threshes grain rods supplied from a pre-harvesting processing section. Automatic adjustment means for automatically adjusting the sorting state in accordance with the amount of leaked material from the handling room, and manual adjustment means for automatically adjusting the sorting state of the sorting device to a manually set target sorting state. The present invention relates to a sorting control device for a combine harvester.

[Conventional technology]

A manual adjustment means that automatically adjusts the sorting state of the sorting device to a manually set target sorting state is essentially unnecessary if there is an automatic adjustment means, but it can be used, for example, to check the operating status of the sorting device with respect to the target sorting state. It will be used when

Therefore, conventionally, switching between the automatic adjustment means and the manual adjustment means has been carried out by, for example, providing a manually operated switch, or providing a special operation mode for operating the manual adjustment means. , the manual adjustment means is operated when a signal for activating the operating mode is input to the control device (see, for example, Japanese Patent Application No. 63-275514 previously proposed by the present applicant).

[Problem to be solved by the invention]

If you manually switch between the automatic adjustment means and the manual adjustment means, it is not only troublesome to operate, but also the automatic adjustment means may not operate due to incorrect operation, which means that leaks from the handling room may occur. There is a risk that work will be carried out in an inappropriate sorting state that does not correspond to the amount of material to be processed.

The present invention has been made in view of the above-mentioned circumstances, and an object thereof is to automatically switch between operating the automatic adjustment means and the manual adjustment means.

[Means to solve the problem]

The sorting control device for a combine harvester according to the present invention controls the sorting state of the sorting device that sorts out leakage from the handling chamber in the threshing device that threshes the grain rods supplied from the pre-harvesting processing section. A sorting control device for a combine harvester, which is provided with an automatic adjusting means that automatically adjusts according to the amount of leakage to be processed, and a manual adjusting means that automatically adjusts the sorting state of the sorting device to a manually set target sorting state. Its characteristic structure is as follows.

That is, threshing state detection means detects whether the threshing device is being driven; reaping state detection means detects whether the reaping pre-processing section is being driven; The manual adjustment means is operated when the reaping pretreatment section is not driven, and the automatic adjustment means is operated when both the threshing device and the reaping pretreatment section are activated. , further comprising a control state switching means for selectively operating one of the automatic adjustment means and the manual adjustment means based on the information of the threshing state detection means and the information of the reaping state detection means. It is in.

[For production]

Considering the work procedure using a combine harvester, first the threshing device is started, and then the reaping pre-processing section for supplying the reaping grain rods to the threshing device is started to perform the reaping operation.

Therefore, when the threshing device is in the driving state and the reaping pre-processing section is in the non-driving state, the threshing process is not actually being performed, and when both the threshing device and the reaping pre-processing section are in the driving state However, the threshing process is in progress.

Therefore, when the threshing device is driven and the reaping pretreatment section is not driven, the manual adjustment means is activated, and when both the threshing device and the reaping pretreatment section are driven, the automatic adjustment means is activated. By detecting whether or not each of the threshing device and the reaping pre-processing section are in the driving state and automatically switching the adjustment means, the threshing device and the reaping pre-processing section are automatically switched when the threshing process is actually performed. While the automatic adjustment means is operated at the same time, the manual adjustment means is operated when threshing is not being performed, so that the sorting state can be checked, etc.

〔Effect of the invention〕

Since the automatic adjustment means and manual adjustment means can be automatically switched according to the driving status of the threshing device and the reaping pre-processing section according to the work procedure, there is no need to provide a manual switch etc. for switching operation. . Therefore, it is possible to automatically switch between the automatic adjustment means and the manual adjustment means so that the sorting state of the sorting device can be accurately confirmed while preventing inappropriate sorting due to erroneous operation. It became so.

〔Example〕

EMBODIMENT OF THE INVENTION Hereinafter, an embodiment in which the present invention is applied to a so-called self-explanation type combine harvester will be described based on the drawings.

As shown in FIG. 4, the self-described combine harvester includes a pair of left and right crawler traveling devices (1), a boarding control section (2), and
It consists of a machine body (V) equipped with a threshing device (3), and a reaping pre-processing section (4) attached to the front part of the machine body M so as to be movable up and down.

The pre-reaping treatment section (4) includes a weeding tool (5) attached to the tip thereof, and a triggering device (for causing grain rods in the field).
6) A cutting blade (7) that cuts the stem of the raised grain rod.
, and a conveying device (9) that conveys the reaped grain rod to the rear of the machine and supplies it to the feed chain (8) of the threshing device (3). In the figure, (So) is a grain that detects the presence or absence of supply of grain rods to the threshing device (3) by contacting the stock base of the reaped grain rods in the conveyance path of the conveyance device (9). This is a stock sensor as a rod detection means.

To explain the power transmission system, as shown in Figure 3,
The output of the engine (E) mounted on the aircraft (v) is
Transmitted to the threshing device (3) via a belt tension type threshing clutch (10), and via a belt tension type running latch (11) and a hydraulic continuously variable transmission for running (12). The power is transmitted to the transmission section (13) of the crawler traveling device (1). Further, a part of the output transmitted to the transmission section (13) is transmitted to the reaping pre-processing section (4) via a belt tension type reaping clutch (14). In addition, in the figure, (S+)
is a vehicle speed sensor serving as vehicle speed detection means for detecting the vehicle speed of the aircraft (v) based on the output rotation speed of the transmission (12).

However, although not shown in the drawings, forward/reverse switching and shifting of the aircraft (V) are performed manually by manually operating the transmission (12).

As shown in FIG. 5, the threshing device (3) includes a handling chamber (A) that houses a handling cylinder (15) that acts to thresh grain rods conveyed by the feed chain (8); and a sorting device (B) for sorting out the leaked waste. The sorting device (B) includes a winnowing machine (16) that blows sorting air and a swinging sorting plate (17), and
A receiving net (18) for collecting grains is provided below the handling cylinder (15) stored in A).

The swing sorting plate (17) includes a grain pan (19) and a chaff sieve (20) arranged in sequence from the front to the rear, a grain sieve (21) located below the chaff sieve (20), etc. Each of these parts is fixed between a pair of left and right side plates (22), and the whole is formed into a plate shape.

At the bottom of the swing sorting plate (17), there is a first grain collecting section (23) for collecting the grains leaking from the grain sieve (21) as the first grain, and a terminal part of the chaff sieve (20). A second material collection section (24) is provided for collecting the processed material mixed with straw waste and grains that has fallen beyond the terminal end of the grain sieve (21). Although not described in detail, the processed materials collected in the second material collection section (24) are
It is returned to the storage room (A) and is subjected to post-processing again.

As shown in FIG. 6, the chaff sieve (20) includes a plurality of strip-shaped members (20a
) is attached to the left and right side plates (22) so as to be rotatable in the front-rear direction, and pushes and pulls in the front-rear direction an operating rod (25) to which the lower end of each strip-like member (20a) is pivotally attached. By operating, the interval (t) of the band plate-like member (21a) (abbreviated as chaff opening degree in the following explanation)
You can adjust the changes.

An electric motor (M+) for adjusting the chaff opening is provided as an actuator for changing and adjusting the chaff opening, and an operating arm (27) of a linkage mechanism (26) driven by the electric motor (Ml) is provided. The operating rod (
25) are interlocked and connected by a release wire (28). In the figure, (29) is a spring that biases the chaff opening back to the closing side, and (S) is a potentiometer-type chaff opening detection that detects the amount of operation of the operating arm (27) as the chaff opening. It is a sensor for

To explain the winnowing machine (16), it uses a so-called split pulley type continuously variable transmission device, and by varying its rotational speed, the amount of air blown can be changed and adjusted.

To explain further, as shown in FIG.
) is configured as a split pulley, and an operating arm (31) that changes the diameter of the manual pulley (30) and an electric motor (M
The operating arm (33) of the linkage mechanism (32) driven by the linkage mechanism (32) is interlocked with the release wire (34). Therefore, by driving the electric motor (M2) in forward and reverse directions and adjusting the number of revolutions of the winnowing machine (16) to high or low, the air flow rate (hereinafter referred to as "touumi air flow rate" for short) can be adjusted to be strong or weak. It has become.

In the figure, (35) is a drive belt for the manual pulley (30), and (S8) is a potentiometer-type sensor for detecting the amount of air flow that detects the amount of operation of the operating arm (33) as the amount of air flow.

That is, the sorting device (B) changes and adjusts the chaff opening degree to a large or small degree, and also changes and adjusts the above-mentioned dusting air volume to be strong or weak, depending on the size of the amount of material to be leaked from the handling room (A). The structure is such that the sorting state can be adjusted by

Although not detailed, basically, the sorting state is adjusted according to the amount of leaked material so that the larger the amount of waste to be processed, the larger the chaff opening degree and the stronger the air flow rate. will be automatically adjusted, but it can also be adjusted manually to check the sorting status, etc.

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

As shown in FIG. 1, a control device (36) using a microcomputer is provided, and the control device (36) includes the stock sensor (So), the vehicle speed sensor (St), and the chaff opening detecting device. A sensor (S2), a sensor (S3) for detecting the chaff air volume, a chaff opening degree setting device (S4) for manually setting the upper limit of the chaff opening degree, and a chaff air volume setting device for manually setting the lower limit of the chaff air volume. vessel (S5),
A threshing switch (S6) serves as a threshing state detection means for detecting whether or not the threshing device (3) is in a driving state based on the operating state of the threshing clutch (10), and the operation of the reaping clutch (14). Reaping switches (S7) as reaping state detection means for detecting whether or not the pre-reaping processing section (4) is in a driving state based on the state are connected to each of the reaping switches (S7).

However, the amount of airflow is set as a value of the number of rotations of the winnow (16). In addition, when automatically adjusting the sorting state of the sorting device (B), the values set by the chaff opening setting device (S4) and the air flow rate setting device (S,) are the upper and lower limits of the automatic adjustment. However, when adjusting manually,
It is intended to be used as a target value corresponding to the target selection state in the manual adjustment.

That is, by using the control device (36), the rear chamber (
a processing material amount detection means for detecting the amount of material leaking from the handling chamber (A); and an automatic adjustment means (
100), and the sorting state of the sorting device (B) is controlled by the chaff opening setting device (S,) and the chaff air volume setting device (S,
); manual adjustment means (101) for automatically adjusting to a target sorting state manually set by the automatic adjustment means (100);
) and a control state switching means (102) for selectively operating one of the manual adjustment means (101).

To explain the amount of processed material detecting means, as the vehicle speed of the combine increases, the amount of grain kneaded supplied to the handling chamber (A) increases, and as a result, the amount of processed material leaking from the handling chamber (A) increases. Become big. In other words, the vehicle speed can be used as information proportional to the amount of leaked material from the handling room (A).

Therefore, in this embodiment, each of the setting devices (S4), (S
Based on the target value set by step 5), the selection device (B ) The sorting state is automatically adjusted according to the vehicle speed so that the sorting state corresponds to the amount of leaked material to be treated. In other words, the automatic adjustment means (1) automatically adjusts the sorting state according to the vehicle speed.
00).

However, when starting or finishing mowing, the vehicle speed and handling room (A
) Since the proportional relationship with the amount of leaked waste from the stock sensor (So
), it is determined whether mowing has started, mowing is in progress, or mowing has ended, and the corresponding processing is switched.

Next, while explaining the operation of the control device (36) based on the flowchart shown in FIG. 2, the control state switching for automatically switching between the automatic adjustment means (100) and the manual adjustment means (101) The configuration of the means (102) will be explained in detail.

When the control operation is started, first, it is determined whether or not the threshing device (3) is in a driving state based on the information of the threshing switch (S6).

When the threshing device (3) is in the driving state, it is determined whether or not the reaping pre-processing section (4) is in the driving state based on the information of the reaping switch (S7), and the threshing device (3) is activated. 3) is not in the driving state, it will be on standby.

When the threshing device (3) is in a driving state and the reaping pre-processing section (4) is not in a driving state, the manual adjustment means (101) is operated to adjust the chaff opening to the chaff opening. Automatically adjust the air flow rate to the target value set by the setting device (S4), and adjust the air flow rate to the target value set by the air flow setting device (S4).
Manual mode processing will be executed to automatically adjust to the target value set by S,).

When both the threshing device (3) and the reaping pre-processing section (4) are in the driving state, it is determined that the reaping work has started, and the automatic adjustment means (101) is replaced with the manual adjustment means (101). 100) to execute an automatic mode process in which the chaff opening degree and the winding air volume are automatically adjusted based on the information from the vehicle speed sensor (Sl).

[Another example]

In the above embodiment, a case was exemplified in which the amount of waste to be leaked from the rear chamber (A) was detected based on the vehicle speed.
For example, the feed chain (8) of the threshing device (3)
The actual processing amount may be detected based on the thickness of the grain rod layer conveyed by the grain rod layer, and the means for detecting the leakage processing material amount can be changed in various ways.

Further, in the above embodiment, the sorting state of the sorting device (B) is changed and adjusted by adjusting the chaff opening degree and the winding air volume. It may be simplified to adjust.

In addition, the sorting device (B) has a specific configuration for changing and adjusting the chaff opening degree and a specific configuration for changing and adjusting the amount of airflow.
The specific configuration of each part for changing and adjusting the sorting state according to the amount of leaked material from the handling room (A) can be changed in various ways.

Further, in the above embodiment, the present invention is applied to a so-called self-propelled type combine harvester, but it can also be applied to, for example, a full culm input type combine harvester. The specific configuration of each part 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 combine harvester sorting control device according to the present invention, 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 power transmission system.
FIG. 4 is a schematic side view of the combine harvester, FIG. 5 is a cutaway side view of the threshing device, FIG. 6 is an explanatory diagram of the chaff opening adjustment mechanism, and FIG. 7 is an explanatory diagram of the threshing air volume adjustment mechanism. (A)... handling room, (B)... sorting device, (S6)... threshing state detection means, (S7)...
... Reaping state detection means, (3) ... Threshing device, (4) ... Reaping pre-processing section, (100)
... Automatic adjustment means, (101) ... Manual adjustment means, (102) ... Control state switching means.

Claims (1)

[Claims] The sorting state of the sorting device (B) that sorts out the leaked material from the handling chamber (A) in the threshing device (3) that threshes the grain rods supplied from the pre-harvesting treatment section (4) is Room (
automatic adjustment means (100) that automatically adjusts according to the amount of waste to be leaked from A); and manual adjustment means (101) that automatically adjusts the sorting state of the sorting device (B) to a manually set target sorting state. ) is provided, a threshing state detection means (S_6) for detecting whether or not the threshing device (3) is being driven; reaping state detection means (S_7) for detecting whether or not the threshing device (3) is being driven, and the manual adjustment means (101) when the threshing device (3) is driven and the reaping pre-processing section (4) is not driven. , and
When both the threshing device (3) and the reaping pre-processing section (4) are driven, the automatic adjustment means (100)
The threshing state detection means (S_6)
control state switching means (102) for selectively operating one of the automatic adjustment means (100) and the manual adjustment means (101) based on the information of the reaping state detection means (S_7) and the information of the reaping state detection means (S_7); A sorting control device for a combine harvester equipped with