JPH09187144A - Engine stop controller in combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure a real working time from announcing of a full charge alarm of a grain tank to stop an engine. SOLUTION: When a grain tank 22 is fully charged with unhulled rice and detected by a full charge sensor 23, the fact is announced to an operator by an alarm such as a buzzer, etc., and an engine is automatically stopped after passing of a prescribed time from the detection of the fully charged state. During the time from the detection of the fully charged state to the engine stop, e.g. the combine harvester stops (non-reaping work state), this state is detected by a lever position detecting sensor, etc., and a measurement by a timer is temporarily suspended according to the detected signal. When this suspended state is released, the measurement is started again by the timer and real working time can be secured as the suspended time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine mainly equipped with a cutting and threshing device for rice and wheat, and more specifically, to automatically stop the engine after a predetermined time when the Glen tank is filled with paddy. The present invention relates to an engine stop control device in a combine.

[0002]

2. Description of the Related Art In combine harvesters, the pretreatment section is moved up and down with respect to the machine body to achieve an appropriate cutting height and to perform smooth cutting and threshing work. A Glen tank is installed on the side of the thresher behind the pretreatment unit in the machine body, and a full sensor for detecting the full amount of paddy stored in the Glen tank is provided inside the Glen tank.

An alarm means such as a buzzer which sounds by the detection signal of the full sensor is provided to inform the operator by sounding the buzzer when the amount of paddy is full, and a predetermined time has elapsed from the detection of the full state by the full sensor. There is one that automatically stopped the engine later. This is because if the engine tries to stop the engine immediately after the combine detects that the engine is full, the operator cannot know what caused the engine to stop. Is.

As a result, excessive paddy storage is avoided and troubles caused by continuing the mowing and threshing work while the Glen tank is full are avoided.

[0005]

However, in the conventional means for uniformly stopping the engine after a lapse of a predetermined time from the detection of the full state of the amount of paddy by the full sensor, when the alarm is issued, the operator can check the amount of paddy in the tank. The aircraft may be temporarily stopped to check the accumulation condition, etc., and even during this suspension, the automatic engine stop device will operate after a predetermined time elapses, so substantial work time will be saved. There was a problem that it could not be secured.

Further, in the means for uniformly stopping the engine after a lapse of a predetermined time from the detection of the full state by the full sensor, the workable distance until the engine is stopped varies depending on the speed of the machine body. It was difficult to judge how far away I should be able to work.

The present invention has been made to solve the above problems, and its purpose is to secure the actual work time from the detection of the full state of the Glen tank to the stop of the engine, and the work for the operator. An object of the present invention is to provide an engine stop control device in a combine that makes it easy to set a standard.

[0008]

In order to achieve this object, the present invention comprises a traveling device (16) for supporting an airframe (12) having a Glen tank (22) and the Glen tank (22). An engine in a combine (10), which includes a full sensor (23) for detecting that the engine is full, and performs control to automatically stop the engine after a predetermined time has elapsed from the detection of the full state by the full sensor (23). In the stop control device, non-pruning state detection means (40, 43, 45) for detecting that the Glen tank (22) is in a non-pruning work state after detecting the full state, and the Glen tank (22) full state detection The timer means (53) for measuring the predetermined time from when the engine is stopped until the engine is stopped and the non-shearing operation state is detected after the full state of the Glen tank (22) is detected. And a control means (48) for performing control such that the measurement by the timer means (53) is stopped based on the detection signal and the measurement is restarted when the non-shearing work state is released. And

Preferably, a vehicle speed position detection sensor (40) for detecting the vehicle speed position of the traveling speed change lever (38) is provided, and when the traveling speed change lever (38) is at a low speed position, the predetermined time is set to be long. Travel speed change lever (38)
When is at the high speed position, control is performed such that the predetermined time is set to be short.

(Operation) According to the engine stop control device of the present invention having the above construction, when the full sensor (23) detects that the Glen tank (22) is full of paddy, for example, the fact is detected by the operator. Is notified by an alarm such as a buzzer, and the engine is automatically stopped via the engine stop solenoid (56) after a predetermined time has elapsed from the detection of the full state. If the operator temporarily stops the machine body (12) to confirm the state of paddy in the Glen tank (22) before the engine is stopped (non-cutting work state), this state is detected as the non-cutting state. Means (40, 43,
45), and the timer means (53) stops the measurement based on this detection signal.

When the non-pruning work state is released, the timer means (53) starts the measurement again, so that the above-mentioned non-cutting is performed in the middle of the time from the detection of the full state to the stop of the engine. When the reaping work is started,
During that time, the measurement by the timer means (53) can be temporarily interrupted to secure a substantial working time.

Note that the reference numerals in parentheses described above are for reference to the drawings, and do not limit the configuration of the present invention at all.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view of a combine according to the present invention. In FIG. 1, a combine 10 has a driver's seat 14 above an airframe 12 and a pair of right and left crawler traveling devices 16, 16 and fuselage 1
An up-and-down movable cutting device 18 for cutting the culm in front of 2;
A threshing device 20 for threshing the grain stalks cut by the mowing device 18, and the grains threshed by the threshing device 20 are supplied to and conveyed to a Glen tank 22.
Auger device 2 that transports grain from truck to trailer
4 is provided.

The Glen tank 22 has a full sensor 23 for detecting that the tank 22 is full of paddy.
Based on the detection signal from the full sensor 23, an alarm is issued by a buzzer (not shown), and when the full sensor 23 detects a full state of the paddy, the engine stop solenoid 56 The engine is automatically stopped via.

This is because after the full state of the Glen tank 22 is detected, only the cutting and threshing work corresponding to the predetermined time can be performed to avoid the trouble caused by the continuous work. Is.

As shown in FIGS. 2 (a) to 2 (c), the grain tank 22 is vertically arranged on the left side portion of the machine body 12 in the left-right direction when viewed from the front, and is made of, for example, synthetic resin. It consists of A groove 26 extending along the front-rear direction of the machine body 12 is formed in the middle of the Glen tank 22 in the height direction, and a shield plate 27 is attached so as to cover the groove 26. A flasher lamp 28 is attached.

Further, the front right side portion of the grain tank 22 has a projecting portion 29 partially projecting toward the threshing portion side of the threshing device 20, and the capacity of the grain tank 22 is increased by the projecting portion 29. Is increasing. Further, above the projecting portion 29, a fried grain cylinder 21 communicating with the threshing device 20.
It has an input port 30 for loading paddy from it, and the above-mentioned full sensor 23 is provided on the side of the input port 30 by a mounting bracket 31.

The auger device 24 is a vertical spiral tube 2.
4a, the lower portion of which is supported by a support portion 25, and the vertical spiral cylinder 24a is rotatable about an axis by operating a lever 33.

The present invention is characterized in that it is provided with a non-cutting state detecting means for detecting that the Glen tank 22 is in the non-cutting state after the full state is detected.

As shown in FIG. 3, in the driver's seat 14,
A multi-steering lever 32 is provided on the front side thereof, and a side panel 34 is provided from diagonally forward of the driver's seat 14 to a side surface thereof. An auxiliary shift lever 36 is provided on the side portion of the side panel 34, and a continuously variable shift lever 38 is provided inside thereof, and the lever position is detected at the root of the continuously variable shift lever 38. A lever position detection sensor (potentiometer) 40 is provided. The neutral position and the operating position of the combine 10 are detected by the lever position detection sensor 40.

Further, at the rear portion of the side panel 34,
The reaping clutch lever 42 for operating and stopping the reaping unit
A work machine clutch lever 44 for operating and stopping the threshing unit is provided. At the base of the cutting clutch lever 42 and the work machine clutch lever 44, a cutting clutch switch 43 for detecting the position of the lever is provided. A machine clutch switch 45 is provided.

Further, in the step portion of the driver's seat 14,
A traveling clutch switch 46 is provided to detect the stepped state of the traveling clutch pedal.

Then, the lever position detecting sensor 40
The harvesting clutch switch 43, the work implement clutch switch 45, and the traveling clutch switch 46 constitute the above-mentioned non-mowing state detecting means. For example, when the work implement clutch is in the disengaged state or when the lever position detection sensor 40 detects the neutral position, it can be seen that the combine body 10 is in the non-mowing state.

Further, according to the present invention, the timer means for measuring the predetermined time from the detection of the full state of the Glen tank 22 to the stop of the engine, and the detection of the non-mowing work state after the full state of the Glen tank 22 is detected. Then, stop the measurement by the timer means based on the detection signal,
And a control means for performing control so as to restart the measurement when the non-mowing work state is released.

FIG. 4 shows a control block in the present embodiment, and the control unit 48 as the control means.
Is provided with a microcomputer (CPU) 50, RAM 51 and ROM 52 as storage devices, and a timer 53 as timer means. The timer 53 is used to measure a predetermined time from the detection of the full state of the Glen tank 22 to the stop of the engine.

The following various switches and various actuators are connected to the control unit 48. For details, for example, a full sensor 23 for detecting that the Glen tank 22 is full of paddy, a reaping clutch switch 43 for detecting a disengaged state of the reaping clutch, and a working machine clutch switch for detecting a disengaged state of the working machine clutch. 45, a lever position detection sensor 40 for detecting the vehicle speed position of the continuously variable transmission lever 38, direction sensors 54, 55 provided on the left and right sides of the reaping device 18, and an engine stop solenoid 56 that operates based on detection signals from the full sensor 23. , Hydraulic actuating solenoids 57, 58 for disengaging the left and right steering side clutches in response to signals from the direction sensors 54, 55, a swing motor 59 for swinging the auger device 24, and the like. is there.

In the microcomputer 50, when the full sensor 23 detects the full state of the Glen tank 22 and the lever position detection sensor 40 or the like detects that the combine body 10 is in the non-mowing operation state, Based on the detection signal, a command is issued to the timer 53 to stop the time measurement, and when the lever position detection sensor 40 or the like subsequently detects that the non-mowing work state is released, the timer 5 is restarted.
A command is issued to 3 to start measuring time.

Next, in the present invention, the traveling speed change lever 3
When 8 is in the low speed position, the predetermined time is set longer,
When the traveling speed change lever 38 is in the high speed position, control is performed so that the predetermined time is set to be short.

FIG. 5 is a diagram showing the relationship between the operating position (lever notch position) of the continuously variable transmission lever 38 and the vehicle speed S (m / s). In FIG. 5, for example, when the operating position is V7, the vehicle speed is V7. Since S is 1.0 (m / s), assuming that the predetermined time (timer time) at that time is T (s), the aircraft from when the full state of the Glen tank 22 is detected to when the engine is stopped. The mileage L of 12 is L = T · S (m)
= T · 1 (m).

On the other hand, for example, when the operating position is V5, the vehicle speed S is 0.5 (m / s), so the predetermined time (timer time) at that time is xT (s) (x is coefficient)
Then, the traveling distance L of the aircraft 12 from when the full state of the Glen tank 22 is detected to when the engine is stopped is L = x · T · S (m) = 0.5 · x · T (m) , To keep the traveling distance L constant, x = 1 / 0.5
= 2 should be set.

Therefore, if the value of x is made to correspond to the operation position (lever notch position) and the predetermined time (timer time) is set, even if the vehicle speed is different,
It becomes possible to stop the engine after a certain traveling distance after the full state of the Glen tank 22 is detected.

FIGS. 6A to 6C are diagrams showing a control flow chart in the present embodiment, and the control contents will be described below together with the operation.

FIG. 6 (a) shows the flow of the main routine, and the contents of control of the combine body 10 are as follows.
The engine stop control is included in addition to various controls such as machine body traveling control and raising / lowering control of the reaper.

FIG. 6B shows a control flowchart when the timer value is changed according to the vehicle speed. In FIG. 1, in S1, it is determined whether the paddy full sensor 23 is ON or OFF. In this case, when the full sensor 23 is turned ON, the operator is notified by issuing a warning such as a buzzer.

If the full sensor 23 is OFF, it returns to the beginning (RET). If it is ON, the process proceeds to S2 to input the vehicle speed, and at S3, a predetermined timer value is set according to the vehicle speed, and further at S4. The measurement by the timer is started. Next, in S5, it is determined whether or not the timer has exceeded the set time, and if No, the process returns to S4 and Yes.
If so, the timer is reset in S6, and an engine stop signal is output in S7.

That is, in this control mode, when the vehicle speed is slow, the time from the paddy full state detection to the engine stop is lengthened, and when the vehicle speed is fast, the paddy full state detection to the engine stop is shortened. The distance traveled until the engine is stopped is kept constant regardless of the vehicle speed.

FIG. 6 (c) shows a control flowchart for interrupting the measurement of the timer when the combine body 10 is in the non-shearing work state. In the figure, in S10, it is judged whether the paddy full sensor 23 is ON or OFF.
Similarly to the above, when the full sensor 23 is turned on, the operator is notified by issuing a warning with a buzzer or the like.

Then, if the full sensor 23 is OFF, it returns to the beginning (RET), and if it is ON, the process proceeds to S11 to judge whether or not the machine is in the mowing work state.
Proceed to step 12 to start measuring a predetermined timer value,
Proceed to S13. If it is in the non-reaping work state in S11, S
At 14, the timer measurement is temporarily stopped, and the process proceeds to S13. In this S13, it is determined whether or not the timer has exceeded the set time, or whether or not the set time has elapsed due to re-measurement after a temporary stop. If No, the process returns to S12, and if Yes, the timer is reset in S15, In S16, an engine stop signal is output.

That is, in this control mode, when the combine body is in the non-sheeping work state during the time from the detection of the full state of the paddy to the stop of the engine, the time measurement by the timer is interrupted only during that state. It is the one.

[0041]

As described above, according to the present invention, when it is detected that the Glen tank is in the non-mowing work state after the full state is detected, the measurement by the timer means is stopped based on the detection signal, and the non-mowing work state is detected. By performing control such that the timer restarts the measurement upon cancellation, it is possible to secure a substantial work time from the detection of the full state to the stop of the engine.

Further, the present invention performs control such that the timer setting time is set long when the traveling speed change lever is in the low speed position, and the timer setting time is set short when the traveling speed change lever is in the high speed position. As a result, the traveling distance from the detection of the full state to the stop of the engine can be made substantially constant even if the traveling speed of the machine body changes, so that the operator can easily set a reference for the work.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine to which the present invention is applied.

FIG. 2A is a front view of a Glen tank.
(B) is the left side view. (C) is a plan view of (b).

FIG. 3 is a plan view showing an arrangement state of an operation unit of the combine.

FIG. 4 is a control block diagram in the present embodiment.

FIG. 5 is a diagram showing a relationship between an operating position of a continuously variable transmission lever and a vehicle speed.

FIG. 6A is a diagram showing a control flowchart of a main routine. (B) is a figure which shows the control flowchart regarding engine stop control. (C) is a figure which shows the control flowchart regarding engine stop control.

[Explanation of symbols]

 10 Combine 12 Airframe 14 Driver's Seat 16 Crawler Traveling Device 20 Threshing Device 22 Glen Tank 23 Full Sensor 38 Continuously Variable Lever 40 Lever Position Detection Sensor 42 Reaping Clutch Lever 43 Reaping Clutch Switch 44 Working Unit Clutch Lever 45 Working Unit Clutch Switch 46 Running Clutch switch 48 Control unit 50 Microcomputer 53 Timer 56 Engine stop solenoid

Claims (2)

[Claims] 1. A traveling device supporting a vehicle body equipped with a Glen tank, and a full sensor for detecting that the Glen tank is full of paddy are provided, and a predetermined time has elapsed from the detection of the full state by the full sensor. In an engine stop control device in a combine for automatically controlling the engine afterwards, a non-crop state detecting means for detecting that the Glen tank is in a non-crop working state after the full state is detected, and the Glen tank full state When detecting that the predetermined time from the detection to the engine stop and the non-mowing work state after detecting the full state of the Glen tank, stop the measurement by the timer means based on the detection signal, And a control means for performing control to restart the measurement when the cutting operation state is released. Engine stop control device in combine to. 2. A lever position detection sensor for detecting the operation position of the travel speed change lever is provided, and when the travel speed change lever is in the low speed position, the predetermined time is set long, and when the travel speed change lever is in the high speed position. The engine stop control device for a combine according to claim 1, wherein control is performed such that the predetermined time is set to be short.