JPS62275615A - Threshing and sorting apparatus for reaping harvester - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention [Field of Industrial Application] The present invention provides a working state detection means for detecting whether or not reaping work is in progress, and also provides When the detection work state is in the reaping work state, the range of sorting action in the leakage feed direction of the Glensieve, which oscillates and sorts leakage from the handling room, is set to be slower than when the traveling speed is high. The sorting action range is automatically adjusted depending on the traveling speed so as to narrow the range at times, and when the detected working state is a non-working state, the sorting action range is not adjusted to the traveling speed but is set in a preset narrow range. The present invention relates to a threshing sorting device for a reaping harvester equipped with a sorting range adjusting means for maintaining the sorting range.

[Conventional technology]

In the above-mentioned threshing sorting device for this type of reaping harvester,
Even if the throughput of the threshing device increases or decreases in response to increases or decreases in travel speed during reaping work, and the amount of material leaking from the handling room to the grain sieve changes, the range of sorting action of the grain sieve can be automatically adjusted according to the change. By adjusting the grain sieve, it is possible to properly collect grains through the grain sieve, and when the reaping operation in the -stroke is completed, the machine is moved to the next operation, such as during so-called headland running. When the grain sieve is not in operation, the range of sorting action of the grain sieve in the leakage material feeding direction is maintained within a predetermined narrow range, thereby making it possible to perform grain recovery even better.

In other words, the leakage material on the grain sieve is located in a state where grains are distributed on the lower layer side and straw waste is distributed on the upper layer side due to the difference in specific gravity.

When the amount of leakage is large and there are a large number of grains, if the grain sieve has a narrow sorting range in the flow direction of the leakage, a large amount of grains will be sent through the grain sieve without being collected. Also, when the amount of spillage is small and the amount of grain is small, if the range of sorting action of the grain sieve in the flow direction of the grain sieve is too wide, as the grain is collected through the grain sieve, Straw waste is also collected through the grain sieve, which causes the inconvenience of a large amount of straw waste being mixed into the collected grains. However, as described above, by automatically adjusting the range of sorting action, This is designed to avoid such inconveniences. In addition, since the amount of leakage is small when the machine is not in operation, by keeping the range of sorting action within a narrow range, it is possible to suppress as much as possible straw waste from being mixed into the collected grain. This is how it was done.

By the way, conventionally, the automatic adjustment of the sorting action range according to the traveling speed has been started immediately when the non-working state changes to the working state.

[Problem that the invention seeks to solve]

However, the conventional configuration described above has the following disadvantages, and there is room for improvement.

That is, even if the reaping operation is started, it takes time for the reaped stalk culms to be supplied to the threshing device, and furthermore, it takes time for the threshing device to process the supplied stalk culms. The amount of leakage supplied to Glensieve does not increase immediately. However, in the past, when the non-working state changes to the working state, the automatic adjustment of the sorting action range according to the traveling speed is immediately resumed, so even though the amount of leaked material supplied to the grain sieve is small, There is a risk that the range of sorting action will be unnecessarily expanded, and as a result, there is a risk that straw waste such as cut straw mixed in the leakage may be mixed into the collected grains.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to enable the grain sheave sorting action to be performed appropriately even immediately after the start of the reaping operation.

[Means for solving problems]

The characteristic structure of the threshing sorting device for a reaping harvester according to the present invention is such that when the working state detected by the working state detecting means changes from the non-working state to the working state, the sorting range adjusting means is configured to move the grain sheave from the handling room to the working state. After a predetermined period of time required for the leaked material to reach the target, the adjustment of the screening action range of the grain sieve is started, and its actions and effects are as follows.

[For production]

That is, when the detection work state changes from the non-work state to the work state, the start of adjustment of the range of sorting action of the grain sieve is delayed until the leakage material reaches the grain sieve from the handling room.

〔Effect of the invention〕

Therefore, when the leakage material from the handling room has not yet reached the grain sieve or is small, such as immediately after the start of reaping work, the range of sorting action can be maintained in the same narrow range as in the non-working state, so immediately after the start of reaping work. Even though the amount of leakage material supplied to the grain sieve is small, the range of sorting action is suppressed from being unnecessarily expanded, and straw waste such as cut straw mixed in the leakage material is recovered. This made it possible to avoid the risk of contamination with grains.

〔Example〕

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

As shown in Figure 3, the planted stem culms of rice, wheat, etc. in the field are raised and harvested, and while the harvested stem culms are being conveyed, the posture is changed to a sideways posture, and the threshing feed chain (1) is reaped. The passing reaping section (2) and the threshing feed chain (
A threshing and sorting unit (3) that threshes the stem culms that are pinched and conveyed in step 1) and sorts and collects grains is mounted on a machine (A) equipped with a pair of left and right crawler traveling devices (4), and the harvesting A self-propelled combine harvester is configured as a harvesting machine.

Below the reaping section (2), there is a contact type switch that outputs an 0N10FF signal by contacting the base of the stem culm that is introduced into the reaping section (2) from the front as the machine travels. A plant head sensor (S0) is provided, which constitutes a work state detection means for detecting whether or not reaping work is in progress.

To explain the configuration of the threshing sorting section (3), the third
As shown in the figure, the harvested stem culm is supplied to the handling chamber (5) by the threshing feed chain (1), and the rotating handling cylinder (6
), the threshing unit (3a) is configured to be threshed by
The threshed material from the handling chamber (5) is transferred in the direction of the rotational axis of the handling drum (6) by a sorting device (7) which is driven and moved, while a winnowing machine (8) supplies sorting air. The sorting section (3b) is configured to sort out the sorted dust, suck it up with a rotating fan (9), and discharge it outside the machine.

Further, a screw conveyor-type carry-out device (10) for carrying out the first processed material from the sorting section (3b), and a screw conveyor-type carrying-out device (10) for carrying out the second processed material from the sorting section (3b). 11) in the sorting section (3b
) is installed at the bottom of the Swallow set lifting equipment (
12) so as to be returned to the handling room (5).

To explain the sorting device (7), the handling room (5)
) for the threshed material supplied through the receiver m (13), and a second oscillating sorter for the threshed material that falls and is supplied from the dust outlet (15) of the handling chamber (5). a dynamic sorting tool (16), a third swinging sorting tool (17) for the processed material that is dropped and supplied from the action end portion of this third swinging sorting tool (16), and a third swinging sorting tool (17), and the first swinging sorting tool (14). ) The material to be treated falling and supplied from the action terminal part of the carrying out device (1
1) Each guide tool (18) to be dropped is attached to a sorting device frame (19) that is driven to swing.

As shown in FIGS. 1 and 3, the first oscillating sorting tool (14) has a grain pan (20
a) and the grain sieve (20b) located on the action end side.
), and a shielding plate (20c) that covers a part of the upper surface of the grain sieve (20b) is provided on the sorting action starting end side of the grain sieve (20b), a pair of left and right rack gears (21), and A pair of binion gears (22) which are individually engaged with a pair of rack gears (21) are provided so as to be slidable in the longitudinal direction of the aircraft. The pair of pinion gears (22) are interlocked and connected to a motor (24) for adjusting the sorting range via one rotating shaft 23), and the motor (24) is operated by the shielding plate (24). 20c) to the rear with respect to the aircraft body, the range of sorting action of the grain sieve (20b) is adjusted to a narrow range, and by sliding the grain sieve (20b) forward, the sorting action of the grain sieve (20b) is adjusted to a narrow range. It is configured so that the range can be expanded and adjusted.

As shown in FIG. 1, the output of the engine (E) is coupled to drive the handling cylinder (6) in rotation, and is transmitted through a continuously variable transmission (25) to drive the wolf crawler described in ii7. The information is transmitted to the mission section (26) of the machine (device), and the machine is configured to simultaneously thresh the harvested stems and culms while the machine is running. Although not illustrated, the reaping section (2) is driven by the output of a transmission device (25).

Further, a vehicle speed sensor (
S2), and a potentiometer (Rs) for detecting the sorting action range of the grain sheave (20b) is linked to the rotation of the rotating shaft (23) rotationally driven by the motor (24). It is a provision. In addition, in Figure 1, (2
7) is a changeover switch for selecting whether the above-mentioned selection range adjustment is performed automatically or manually.

Then, the stock sensor (S0) and the vehicle speed sensor (S2)
, and the potentiometer (Rs) are input to the control device (B) constituting the sorting range adjusting means (100), and the stock sensor (S0) is in the OF position.
When F is in the non-working state, the screening range is adjusted based on the detection information by the potentiometer (Rs) so that the screening action range of the grain sieve (20b) becomes a preset narrow range. The grain sieve (20b) is maintained in a retired state to the narrowest position, and when the stock sensor (S0) is turned on and in the working state, the sorting action range of the grain sieve (20b) is The driving speed (v) is automatically increased or decreased as the detected traveling speed (v) by the vehicle speed sensor (S2) increases.

Next, the configuration of the sorting range adjusting means (100) will be described in detail while explaining the operation of the control device (B) based on the flowchart shown in FIG.

As shown in FIG. 2(a), the changeover switch (2
7) is switched to the automatic side and control is started, after performing initialization processing, the stock sensor (S0), vehicle speed sensor (S+), and selection range detection sensor are set every 100m5. The detection value (VR) of the potentiometer (Rs) is measured to drive the motor (24) for sorting range adjustment (hereinafter referred to as 5S100), and the grain sieve (20b) is A process (hereinafter referred to as
5S100O) are repeated. In other words, every time 100 ma elapses, the value (i) of the counter for determining the passage of 1 second is repeatedly subtracted from the initial value of 10, and as the value (i) becomes "0", the C3S100O) It has been set up so that it can be processed.

Next, based on the flowchart shown in Figure 2 (b),
The above processing (SS100) will be explained.

That is, the speed (v) detected by the vehicle speed sensor (S,)
) is repeatedly added for each Room where this process is executed, and the value added 10 times is calculated as the average vehicle speed per second (Sr'
1O), the state of the stock sensor (S0) is determined (step #1, step #2).

If the stock price sensor (S0) is OFF, the stock price flag is set to determine whether a set time has elapsed after the stock price sensor (S0) turns ON/OFF. The state is determined, and if it is "0" corresponding to the non-working state, the value of the counter (SPDELAY) for checking the elapse of the set time is set in the handling room (
5) to the predetermined time (α) required for the leakage material to reach the Glensieve (20b), and the stock sensor (S
, ) changes from OFF to ON, the counter value (ONTM) for determining whether the state has stabilized is set to a predetermined value (βl) (Step #3
．． Step 14).

If the stock stock flag determined by the screen #3 is "1", the stock stock sensor (S0) is temporarily turned off.
A counter value (SPDELAY) for determining that the state has been reached and checking the elapse of the set time.
It is determined whether or not the set time has elapsed since the value has become less than "O", and the stock sensor (S0) is turned from ON to OFF.
After the state has changed to , it is checked whether the counter (OFFTM) for determining whether the state has become stable is set to "O" (step #5, step #6).

The value of each counter (SPDELAY), (OFF
TM) are both below "0", the stock sensor (S0) changes from ON to OFF, and then it is judged that the state is stable, and the stock stock flag is set to non-working. Cent to “0” corresponding to the state.

However, the value of the counter for determining the elapse of the set time (SPD
ELAV) is not below "0", subtract the value (SP) corresponding to the detection speed (v) and set the counter that determines whether the stock sensor (S0) has changed from ON to OFF. Subtract 1 from the value (OFFTM) (steps #7 to #9).

On the other hand, if the status of the stock price sensor (S0) determined in step #2 is ON, the status of the stock price flag is determined and the stock price is If the original flag is "0", the value of the counter for determining the elapse of the set time (SPDELAY) is determined, and after the stock sensor (S0) changes from OFF to ON, whether the state has stabilized or not. The counter value (
ONTM) and its subtraction processing. However, if the stock flag is "1", the value of the counter for determining the elapse of the set time (SPDELAY) is set in the handling room (
5) to the predetermined time (α) required for the leakage material to reach the Glensieve (20b), and the stock sensor (S
0) changes from ON to OFF, the counter value (OFFTM) is used to determine whether the state has stabilized or not.
is set to a predetermined value (δ2) (Step 1)
110 ~ Step #16).

After performing processing according to the state of the stock sensor (S0), the value of the potentiometer (Rs) for detecting the sorting range of the grain sieve (20b) and the value of the selection range detection (SS100)
Calculate the deviation (x) from the target value (Vt) corresponding to the target selection range set in the process of O), and check whether the deviation (x) is within the preset tolerance (ε). Determine.

If the deviation (x) is greater than or equal to the tolerance (ε), the motor (24) is rotated in the normal direction, and the shielding plate (24) is rotated in the normal direction.
0b) toward the front of the aircraft to expand the range of sorting action, and if the deviation (x) is less than the tolerance (ε), the motor (24) is reversed to remove the shielding plate (24). 20c) is made to protrude toward the rear of the fuselage to narrow the range of sorting action. However, the deviation (x) is the tolerance (ε
), the motor (24) is stopped to maintain the current sorting action range (Step #17 to Step #22).

Next, based on the flowchart shown in Figure 2 (c),
The above processing (SS100O) will be described in detail.

First, by determining the state of the stock origin flag, it is determined whether or not work is in progress, and if the stock origin flag is "0" indicating a non-work state, the stock origin corresponds to the target selection range. After setting the target value (Vt) to a value (Voff) corresponding to a state in which the shielding plate (20c) is most protruded toward the rear of the aircraft and the sorting action range is minimized, the average vehicle speed (SPIO ) t-reset to "0" (Step #110) and end all processing. On the other hand, if the stock source flag is "1" indicating that work is in progress, the average vehicle speed at the previous measurement is (SPf) and the average vehicle speed at the time of this measurement (
Calculate the deviation (x) from SPIO) and calculate the deviation (x)
By determining whether or not is greater than or equal to a preset tolerance (δ,), it is determined whether or not there has been a change in the traveling speed (v). However, if the deviation (x) is within a preset tolerance (δυ), it is determined whether or not to perform a process of adjusting the screening action range of the grain sieve (20b) according to the traveling speed (V). The value of the time counter (SIIIFTDELAY) is set in advance for a preset time based on the time when a change in traveling speed (v) appears as an increase or decrease in leakage from the handling room (5) to the grain sieve (20b). (r) and terminates the process.If the deviation (x) is greater than or equal to the preset tolerance (δ1), check whether the value of the counter (SHIFTDELAV) is less than or equal to “0”. By making this determination, it is determined whether or not a predetermined time has elapsed since the traveling speed (v) changed.If the value of the counter (SHIFTDELAY) is not less than "0", the value is changed to "1". Then, the deviation (x) is greater than or equal to the preset tolerance (δI) and the value of the counter (SH
If IFTDELAY) is below “O”,
After performing the process of changing the average vehicle speed (SPf) from the previous measurement to the average vehicle speed (SPIO) measured this time, the deviation (
x) to “O” (step #102 to step #11108).

Then, a target value (Vt) corresponding to the average vehicle speed (SPIO) measured this time is set, the value of the average vehicle speed (SPIO) measured this time is reset to "0", and the process ends (step # 109. Step #110).

[Another example]

In the above embodiment, the grain sieve (2
In order to maintain the sorting action range of 0b) in a narrow range, the shielding plate (20c) is moved to the position where the sorting action range is the narrowest.
For example, the shielding plate (20c) may be maintained at a position where the screening range is narrower than approximately half of its maximum screening range.

Further, in the above embodiment, the traveling speed (v) is detected by measuring the rotation speed of the human-powered shaft to the transmission section (26) of the crawler traveling device (4), but the speed change device (25) The shift position may be detected. In addition, when the gear shift operation is performed manually, the operation position of the gear shift operating tool may be detected, and the traveling speed (
The detection means in v) can be modified in various ways.

Furthermore, the range of sorting action of the grain sieve (20b) can be increased or decreased in a stepless manner or in a stepwise manner.

Furthermore, as in the above embodiment, when the driving speed of the reaping section (2) is changed in conjunction with the traveling speed (v), the time required to convey the reaped stem culm to the threshing device (3) varies. Therefore, the predetermined time (α) is changed to the traveling speed (v
) It would be even better if you change the settings accordingly.

Similarly, the specific structure for adjusting the range of sorting action of the grain sieve (20b) and the specific structure of the working state detection means can be changed in various ways.

[Brief explanation of drawings]

The drawings show an embodiment of the threshing sorting device for a reaping harvester according to the present invention, FIG. 1 is a block diagram showing the configuration of the sorting range adjusting means, and FIG. 2 ((), (TI), (11) is a A flowchart showing the operation of the control device, and FIG. 3 is a cutaway side view showing the schematic configuration of the reaping harvester. (5) Handling room, (20b) Grain sheave, (100)...Selection range adjustment means,
(v)... Traveling speed, (S0)... Working state detection means, (α)... Predetermined time.

Claims (1)

[Claims] Work status detection means (
S_0) is provided, and the work state detection means (S_0) is provided.
When the detection work state according to 0) is in the reaping work state, the range of sorting action in the leakage feed direction of the grain sieve (20b) that swings and sorts leakage from the handling chamber (5) is determined. , automatically adjusts according to the traveling speed (v) so that it is narrower when the traveling speed (v) is slow than when it is fast, and when the detected working state is the non-working state, the traveling speed ( Regardless of v), there is provided a threshing sorting device for a reaping and harvesting machine, comprising a sorting range adjusting means (100) for maintaining the sorting action range in a preset narrow range, the sorting range adjusting means (100) , the working state detection means (S_0)
When the detection work state changes from non-work state to work state, the operation is carried out from the handling room (5) to the grain sieve (20b).
A threshing sorting device for a reaping harvester, which is configured to start adjusting the sorting action range of the grain sieve (20b) after a predetermined time (α) required for leakage to reach the grain sieve.