JPH05176623A - Grain culm carrying speed controller of combine - Google Patents

Abstract

PURPOSE:To make it possible to transfer grain culms without stagnating grain culms held in the vicinity of the tip of grain culms carrying part by detecting traveling stop of combine by traveling stop detecting means, measuring passage time after stopping with a counter and transferring power of prime mover to a grain culms-carrying part. CONSTITUTION:When a traveling stop detection means detects a traveling stop of a combine, a counter measures the passage time after traveling stop. A power transmitting means transfers grain culms held in the vicinity of the tip of carrying part of grain culms to the middle part and rear part of the grain culms-carrying part.

Description

Description: BACKGROUND OF THE INVENTION The present invention relates to a combine harvester.
The operation speed of the grain culm transporting section that feeds the harvested grain culm to the threshing section
The present invention relates to a grain culm transport speed control device for controlling. [0002] In a conventional combine, is the prime mover?
From the appropriate intermediate shaft in the transmission mechanism from the
Extracts power to the grain culm transport section and depends on the traveling speed of the traveling section
Then, the operating speed of the mowing section and the grain culm transporting section changes and
is doing. However, this conventional method
In case of turning around in a corner of a field,
For example, when temporarily stopping traveling during mowing work,
The sending department also subordinately stops. At this time, immediately after the cutting part
For the grain culm located at the tip of the grain culm transport section,
Grain culm transport unit stops with insufficient clamping by the transport unit
It is a waste that these grain culms will fall.
Was occurring. To prevent this waste, the operator must
Stop traveling and disengage the traveling clutch to the traveling section.
The power transmission of the grain is cut off, and the grain culm transport section is operated to transport the grain culm.
Send the culm located at the front end of the feeding section to the rear threshing section
It is necessary to quickly perform the operation called
There was a problem that it required work and skill. Therefore, the present invention is based on the above-mentioned problems of the prior art.
It was made in consideration of the subject, and
Prevents waste from dropping and burdens the operator
It is an object of the present invention to provide a grain culm transport speed control device that can reduce
Target Means for Solving the Problems To solve the above problems,
In addition, the grain culm transportation speed control device of the present invention is designed to
Traveling stop detection means for detecting a line stop, and the traveling stop detection
Measures the elapsed time after stopping traveling according to the output of the output means
The counter and after the traveling stop based on the output of the counter
Power transmission that transmits the power of the prime mover to the grain culm transport section for a certain period of time
And means. [0006] Now, the traveling stop detecting means is used for the traveling stop of the combine.
When the stop is detected, the counter measures the elapsed time after stopping the traveling.
Measure. The power transmission means is based on the output of the counter.
The power of the prime mover for a certain period of time after the traveling is stopped.
Communicate to. As described above, according to the present invention, the traveling of the combine is performed.
Since the grain culm transport section operates for a certain time after the stop,
Do not stagnate the grain culms sandwiched near the tip of the feeding section.
And the grain culms are transferred to the middle and rear parts of the grain culm transport section, so that the grain culms are retained
This ensures that the waste caused by falling grain culms can be eliminated.
In addition, the operator's labor for frequent operations can be reduced. Embodiments of the present invention will be described below with reference to the drawings.
Explain. 2 and 3 embody the present invention.
Combine combine the weeder 2 and the crop to align the crop
Standing and raising device 3 and cutting for cutting the crop base
Mowing part A, which consists of part 1 and these are integrally linked, cutting
Transfer the rearward while changing the posture of the grain rod to the side
Grain culm transport consisting of reaper side carrier C1 and intermediate carrier C2
Feeding unit C, a fee for feeding the horizontal grain rod to the threshing sorting unit E
Do-chain D, threshes the supplied rods with a saw and selects
Threshing sorting section E for sorting by another device (not shown), machine body
The crawler 11 of the traveling unit G traveling on the
From an engine H etc. driven via a power transmission mechanism
Become. Next, the power of the engine H is transmitted to each of the above parts.
An example of the power transmission mechanism to be reached will be described. 2,
In FIG. 3 and FIG. 4, the output shaft 5 of the engine H is
The pulley 6 and the pulley 7 are attached, and the pulley 6 is attached to the belt 8.
The input shaft of the hydraulic transmission 9 (hereinafter referred to as HST)
Link. The output side of HST9 has a clutch function.
Connected to the input shaft of the drive mechanism 10 and connected to the output shaft of the drive mechanism 10.
Connects the pair of left and right crawlers 11, 11. On the other hand,
Is a drive shaft 1 for the threshing section which is parallel to the engine output shaft 5
The belt 14 is connected to the pulley 13 of No. 2 and
The engine output shaft 5 is disconnected from the engine output shaft 5 by the tension or relaxation of the bolt 14.
Threshing tensioner for connecting and disconnecting power transmission with the grain drive shaft 12
The clutch 28 is provided. In addition, the threshing part drive shaft 12
Attach the pulley 15 and pulley 16, and the pulley 15 is
And the pulley 16 is connected to the sorting section and the sorting section.
According to 17, the ring which is the power transmission device in the present invention
It is connected to the input shaft 19 of the cone transmission 18. Further, the output shaft 2 of the ring cone transmission 18
The pulley 21 is attached to 0, and the belt is attached to this pulley 21.
It is connected to the pulley 23 of the input shaft of the speed reducer 22 via. Decrease
Attach the pulley 24 to the input shaft of the speed machine 22
Common input of the mowing section A and the grain culm transporting section C via the switch 25.
It is connected to a pulley 26 provided on the shaft 26a. In addition, reducer 2
The feed chain D should be driven on the second output shaft 31.
Connect the sprocket 27. Input shaft 32 of the speed reducer 22
Between the pulley 24 and the pulley 26 of
Mowing tensions that perform intermittent power transmission by tension or relaxation
A clutch 29 is provided. The ring cone transmission 18 includes the transmission ring 3
7 is moved by the shifter 38 in the axial direction,
19 is a continuously variable transmission that changes the reduction ratio between the output shaft 20 and the output shaft 20.
It As shown in FIG. 6A, the shifter 38 has the link 4
1 and the rotation shaft 46,
It is connected to a fan-shaped rack plate 39. Furthermore, it is possible to reverse
The ring cone motor 42 is provided at a predetermined position, and the gear 45 is
It is connected to the rack plate 39 through. And on the rack plate 39
Of the rack plate 39, as schematically shown in FIG.
Detecting means for detecting the position, that is, the position of the shifter 38
As a shifter sensor 7 consisting of a potentiometer, etc.
Install 9. Detecting means for detecting the traveling speed of the traveling portion G;
Then, the traveling speed sensor 35 including a photocoupler, etc.
Any of the shafts forming the transmission mechanism 10 of the traveling system.
It is provided on the side edge (not shown) and its periphery. Also, mow
Detection to detect the working speed of the picking section A and the grain culm conveying section C
As a means, a work speed sensor consisting of a photo coupler, etc.
36 is an end of the output shaft 20 of the ring cone transmission 18
Provided in the area and its surroundings. Next, an example of the configuration of the operating section in the driver's seat will be described.
It will be described with reference to FIG. In FIG. 6, 55 is a stop, threshing operation, or
Mowing threshing class that selects either cutting or threshing work
It is a lever. With this reaping threshing clutch lever 55
When a predetermined work is selected, the switching motor responds to this.
69 (see FIG. 7) rotates in the forward and reverse directions, and the threshing ten
The disconnection clutch 28 and the reaping tension clutch 29 are disengaged.
To continue. Reference numeral 57 is an HST for changing the gear ratio of the HST 9.
This is an operating lever, and the fulcrum part of this HST operating lever 57
Is the tilt angle (operation angle) that rotates with the operation.
Attach a lever sensor (78 in Fig. 5) to detect
It The detection value of this lever sensor 78 is the gear shift of HST9.
The ratio, in other words, corresponds to the traveling speed of the traveling unit G. Furthermore
In addition, the grip of the HST operating lever 57
A mode switch 54 is provided. This work mode switching switch
When the grain is harvested, the switch 54
"Standard mode" to be used when
Either one of "Loop mode" used when you are
It is something to choose. Further, 79A is in the transmission mechanism 10.
Speed change (not shown) for work, neutral, non-work
It is an auxiliary gear shift lever that should be switched to three positions for traveling. Next, the control system of the embodiment configured as described above
An example will be described with reference to FIG. 7. The control unit J is operated in response to the operator's instructions.
As described above, each part is controlled in a predetermined procedure. Control
On the input side (right side in FIG. 7) of the control part J, the above-mentioned running
Line speed sensor 35, work speed sensor 36, cutting threshing club
Switch lever 55, work mode selector switch 54, lever
Sensor 78 and shifter sensor 79 are electrically connected to each other
To do. On the input side of the control unit J, in addition to these devices,
Switch 75 to detect the operating position of the replacement motor 69
77, reaping and conveyance stop switch 9 used for traveling operation, etc.
0, grain culm sensors 91 and 92 used for traveling direction control, cutting height
The cutting height sensor 93 and the engine H
An engine rotation sensor 94 for detecting is connected. On the output side of the control unit J, the ring controller
Speed-up relay for forward or reverse rotation of the motor 42
52 and the deceleration relay 53 are connected. And Ringco
The motor 42 has a contact 52 for both relays 52, 53.
It is configured so that normal and reverse rotation can be performed by switching a and 53a.
It Similarly, on the output side of the control unit J, the above-mentioned threshing threshing
Operate the latch lever 55 to engage the clutches 28 and 29.
Switching motor 69 for switching, and this switching motor
A normal relay 71 for rotating the motor 69 in the normal or reverse direction,
The contacts 71a, 72a of the reverse rotation relay 72 are connected. Next, the embodiment of the present invention thus constructed will be described.
An operation example will be described. Now, when the engine H is started, its power
Is transmitted to the input shaft of the HST 9 via the output shaft 5 and the belt 8.
To be done. Next, set the mowing threshing clutch lever 55 to
Threshing tension clutch 2 when set to the "Thrush" position
8. The harvesting tension clutch 29 is in the connected state.
The power of the engine H is output from the output shaft 5, belt 14,
While being transmitted to the threshing section E via the grain drive shaft 12,
Ring cone via drive shaft 12 and belt 17
It is transmitted to the input shaft 19 of the transmission 18. Then, work is performed on each part of the first embodiment.
Control according to the selection of the mode changeover switch 54 is performed,
When the standard mode is selected as shown in FIG.
Is the traveling speed of the traveling section G and the reaping section A and the grain culm conveying section.
It is controlled to be proportional to the operating speed of C, and the lodging mode is set.
When is selected, they are constant rather than proportional
Controlled to be in a relationship. This is cutting of lodging of grain culm
Mow grain at an appropriate working speed according to the difference in harvesting conditions
This is because. That is, in this work speed control, the traveling speed is
When the degree sensor 35 detects the traveling speed of the crawler 11,
The control unit J sets a target work speed according to the detected traveling speed.
This target work speed and work speed sensor 36
The detection work speed of the
Actuating the shifter 38 with the gucone motor 42,
The gear ratio of the transmission 18 is changed. Then, based on such work speed control
During the harvesting threshing work, run in the corners of the field.
When suspending the line, use the following grain culm transport speed control.
Control is done. About this below
It will be specifically described with reference to FIG. First, in step S1, a work described later is performed.
Determines whether the work speed control maintenance flag is set
However, if the determination is negative, the traveling speed is determined in step S2.
It is determined whether or not the detection value of the sensor 35 is 0 rpm. In step S2, the traveling speed sensor 3
The detected value of 5 is 0 rpm, that is, the fact that the vehicle is stopped
If it is determined, the process proceeds to step S3 and the traveling speed
Whether the rotation speed detected by the sensor 35 is 100 rpm or more
Determine whether. When the detected rotation speed is 100 rpm or more
Stop, the control output to the ring cone motor 42 is stopped.
Stop (S4). In addition, the detected rotation speed is 100 rpm or less
If it is, set the target work speed to 100 rpm
Yes (S7). Therefore, the detected rotation of the traveling speed sensor 35
The number is maintained at 100 rpm or more, and the cutting section A and grain culm are transported.
The operating speed of the part C is maintained without decreasing. Next, a 1-second hold cover for measuring 1 second
Counter and set the work speed maintenance flag.
(S5, S6). This work speed maintenance flag
In the work speed control described above,
The target work speed set by department J is maintained unchanged
It Next, an affirmative decision is made in step S1.
Then, the process proceeds to step S8 and the 1 second hold counter is decremented.
Calculation is started (S8). This one second subtraction is complete
Under the conditions of and, move to step S10
The deceleration output for 1 second to the motor 42 is set (S1
0), the work speed maintenance flag is reset (S11).
As a result, the ring cone motor 42 is reduced by 1 second.
High-speed output is performed, and the operation of the mowing section A and the grain culm conveying section C is stopped.
Stop. In the process of controlling the transfer speed of the grain culm,
The grain culm transport section C does not stop at the same time as the traveling of the machine is stopped.
After the running of the body is stopped, the operating state is maintained for 1 second and then reduced.
Stop fast. Therefore, in the first embodiment, the grain culm is transported.
The grain culms sandwiched by the feeding section C are attached to the tip C of the cutting-side carrier C1.
3 (See Fig. 10) Mowing-side transfer without stagnation
Since it is transferred to the middle / rear part of the part C1, the grain culms can be held securely.
Therefore, it is possible to eliminate the waste caused by falling grain culms.
In addition, the labor of frequent operations by the operator can be reduced, and
Can perform smooth and advanced work. In the first embodiment, after the traveling of the airframe is stopped
In addition, the working speed of the grain culm conveying section C can be adjusted without stopping the operation.
Although it was configured to maintain for a fixed time, instead of this configuration, the aircraft
The operation of the grain culm transporting section C is also stopped at the same time as the traveling of the
Then, after that, the grain culm transport section C is restarted for a certain period of time.
However, it is possible to obtain the same effect as that of the device of the first embodiment.
Wear. Next, a second embodiment relating to the present invention will be described.
Explain. The inventor of the present invention once used to combine
The mowing unit is used as a control device for raising the mowing unit during row operation.
A grain culm sensor 91 is provided in the grain culm transport route A, and
When this grain culm sensor 91 does not detect grain culm,
The control unit judges that one line of row cutting (or side cutting) has been completed.
The cutting section A, and the cutting section A is raised by the projecting operation of the hydraulic cylinder 89.
We are making a prototype of a raising and lowering control device for the reaper. Further books
The inventor of the present invention has
The ground clearance of the mowing part A, that is, the cutting height, exceeded 30 cm.
On the condition that the cutting section A, the cutting section 1, the grain culm conveying section C and
Mowing transport that immediately stops the operation of the threshing feed chain D
We are also prototyping a transmission stop device. However, the grain culm transport section C is installed on the cutting section A side.
Gage reaping side carrier C1 and intermediate carrier provided on the rear side of the machine body
It consists of a container C2,
And when the reaper section A is raised, the reaper side carrier C1 and intermediate carrier
The transmitter C2 approaches each other. For this reason, the reaper side carrier
C1 and intermediate transfer device C2 takeover part C4 (see FIG. 10)
At the grain culm stopped at, the lower part is on the cutting side carrier C1 and the upper part is
It is pinched by the intermediate carrier C2 and folded as the cutting unit A rises.
Damage or disturbance in the supply attitude,
There was a problem in that it could cause leftovers. Second embodiment
Is intended to solve this problem. That is, as shown in FIG.
Culm sensor that should detect the presence or absence of culm in the vicinity of the cutting part 1
91 is provided. Further, 93 is a cutting height sensor. These grains
The culm sensor 91 and the cutting height sensor 93 are respectively in the traveling direction.
The second embodiment is used for control and cutting height control.
These sensors are used to control the cutting and transport stop shown below.
The output of 91 and 93 is used. On the other hand, the operation section of the driver's seat is shown in FIG.
A cutting and conveying stop switch 90 is provided. Connection of peripheral equipment of the control system of the second embodiment
Is the same as in the first embodiment described above, but the second
In the embodiment, the control unit J generates the traveling speed sensor 35.
Mileage that measures the mileage based on the pulse signal
Interface 95 (see FIG. 16A). Second implementation
The other mechanical structure of the example is similar to that of the first embodiment.
Therefore, the description is omitted. The operation of the second embodiment will be described.
First, turn on the harvesting and conveyance stop switch 90 in the driver's seat, and
Performs mowing and threshing work for row cutting (or side cutting). This article
The grain culm sensor 91 detects the grain culm during cutting (or horizontal trimming).
The grain culm sensor 91 is turned on and turned on.
When it becomes full, the control unit J finishes the one-row cutting (or horizontal cutting).
It is judged that it is completed, and the hydraulic cylinder 89 is projected.
It drives and raises the reaping part A. Then, one row of cutting (or horizontal cutting) is completed.
At the time of carrying out, the following cutting and conveyance stop control is performed. This
This will be described with reference to the flowchart of FIG. First, in step S21, a product described later is created.
Determine whether the work speed maintenance flag is set,
If not set, move to step S22.
It At step S22, the grain culm sensor 91 is turned on.
If it is off, the step
Whether the cutting height detected by the cutting height sensor is 30 cm or more in step S23
To judge. When the detected cutting height is 30 cm or more,
While setting the mileage counter of the control unit J, work
The speed maintenance flag is set (S24, S25). this
While the work speed maintenance flag is set, the above work
In speed control, the target work speed set by the control unit J
Will remain unchanged. Next, after the affirmative judgment in step S21, the step S21 is executed.
Move to step S26 and run as set in step S24
The subtraction of 1 m of the line distance counter is started (S27). So
Then, if the subtraction is completed, the work speed sensor
Set the target work speed of 36 to 0 rpm (S28), and work again.
The speed maintenance flag is reset (S29). As a result of such control, the cutting of one line is completed.
Then, the mowing unit A started to rise by the hydraulic cylinder 89.
In this case, run 1 m from the time when the reaping section rises by 30 cm or more
Until that time, the mowing section A and the grain culm transporting section C remain in the operating state.
However, on the condition that the vehicle has traveled for 1 m, that is, the grain culm transport section C
Have transferred the grain culms for a certain distance, and the reaper A and
The operation of the grain culm transporting section C is decelerated and stopped. Therefore the second real
In the example, the lower part is to the reaper side carrier C1 and the upper part is the intermediate carrier.
The grain culms sandwiched between the vessels C2 are
To the rear threshing part E etc. without stagnation at the takeover part C4
Since it can be transported, there will be breakage of the grain stem due to the rise of the reaper A
In addition, it is possible to prevent the supply posture from being disturbed and handle it after restarting the vehicle.
It is possible to eliminate the risk of leaving behind. Next, a third embodiment relating to the present invention will be described.
Explain. The inventor of the present invention once found that the mowing part A and
A work speed control device for controlling the work speed of the grain culm transport section C;
Then, the operation amount of the HST operation lever 57 in the driver's seat
The operation of the HST operation lever 57 detected by the sensor 78
The shifter 3 of the ring cone transmission 18 by an angle according to the amount
Position control to operate 8 and this position control
On condition that the operation is completed, the traveling speed detected by the traveling speed sensor 35 is adjusted.
Set the target work speed and the target work speed and work speed
Ring to match the work speed detected by the degree sensor 36
Rotational speed control for operating the shifter 38 of the cone transmission 18
A work speed controller configured to perform in this order
Prototype. In this prototype device, the running speed sensor 35
HST control lever 5 without waiting for the traveling speed to be detected by
Since the shifter 38 is immediately operated based on the operation amount of 7,
It has the advantage of good control response. This prototype device includes a lever sensor 78 and a shifter.
Sensor 79, traveling speed sensor 35, work speed sensor 3
This is a configuration in which four types of sensors of No. 6 are used. But this
Failure such as disconnection occurred in any one of the four types of sensors
In this case, control cannot be performed and the mowing threshing work must be interrupted.
There was a problem that I could not get it. The third embodiment has this problem.
Resolve points and work even if one of the sensors fails
The purpose is to be able to continue. The control of the third embodiment will be described.
First, as a premise of control switching, each of the above work speed control is performed.
In the stage, the lever sensor 78, the shifter sensor 79,
Each abnormal flag of the traveling speed sensor 35 and the work speed sensor 36
Configure the control system so that the
(See (b)). Regarding the process of setting each abnormality flag
Although not described in detail, for example, regarding the traveling speed sensor 35,
Running speed even if the HST operating lever 57 is operated over a certain angle
If there is no output from the speed sensor 35, the travel speed sensor is abnormal
The flag is set. Then, as shown in the flow chart of FIG.
As described above, in steps S31 to S34,
Determine whether a set exists. And step S31 or
In S32, the running speed sensor error flag or work speed sensor
When it is determined that the abnormal flag is set
In step S33, the position control transition flag
Is set. This position control transition flag is
If it is set, the work speed control described above
Position control, that is, operation of the HST operating lever 57.
The amount of work is detected by the lever sensor 78, and this HST operation lever is
-Cone transmission 1 at an angle corresponding to the operation amount of -57
8 only the control for operating the shifter 38 is performed, and
No turn control is performed. Therefore, although the control accuracy is not high
Work speed control with good response can be performed. Further, in step S34 or S35,
Bar sensor error flag or shifter sensor error flag
If it is determined that it is set, rotation speed control
The shift flag is set (S34). This speed control
When the transition flag is set, the above-mentioned rotation speed
Control, that is, response to the traveling speed detected by the traveling speed sensor 35
Set the target work speed and the target work speed and work speed
Ring to match the work speed detected by the degree sensor 36
Only the control for operating the shifter 38 of the cone transmission 18 is performed.
However, the position control described above is not performed. Therefore, control
Although the response of is low, the work speed can be controlled with high accuracy. As described above, in the third embodiment, the lever sensor
Service 78, shifter sensor 79, traveling speed sensor 35, work
Any one of the speed sensors 36 has a failure such as disconnection.
In case of twisting, only position control or rotation speed control
Since the work speed is controlled by only the
The advantage is that you can continue without giving up. Next, a fourth embodiment relating to the present invention will be described.
Explain. Ring cone change in the first embodiment described above.
When the input shaft 19 is stopped, the speed machine 18 changes its position.
The speed ring 37 cannot be moved, and this is forced.
Attempting to move to causes mechanical damage. So this
In order to prevent such damages,
The work speed control device detects the number of revolutions of the engine H.
This engine rotation sensor is provided with a engine rotation sensor 94.
When the detected rotational speed of 94 is zero,
When the input shaft 19 of the gear transmission 18 is stopped,
The configuration in which the ring cone motor 42 does not operate, that is,
The rotation speed detected by the engine rotation sensor 94 is other than 0 rpm.
That makes the condition of the operation of the ring cone motor 42
I was trying. However, in this configuration, the engine
If a failure such as disconnection occurs in the rolling sensor 94, this error
The pulse signal from the engine rotation sensor 94 is not input.
So, the engine H is running and the other parts of the control system are completely
Even if there is no failure, the ring cone motor 42
The question that you cannot move and you have to interrupt the work
There was a subject. The fourth embodiment solves this problem and
Work can be continued even if the engine rotation sensor 94 fails
It is intended to be Noh. The control of the fourth embodiment is shown in FIG.
This will be described with reference to the row chart. First, as described below
0.5 seconds cycle counter valid flag set / reset
In step S41, check whether the lag is set.
Determine. When a negative determination is made in step S41,
Determine whether the pulse signal of the traveling speed sensor 35 is input
(S42), as soon as there is an input, in step S43 the traveling speed
Add to the degree counter. Next, at step S44, the engine is turned on.
The presence or absence of input from the rolling sensor 94 is determined, and as soon as there is input,
It is added to the engine rotation counter in step S45. Beginning
These steps S41 are performed until 0.5 seconds have elapsed after the movement.
~ The operation of S45 is repeated and the running speed sensor 35 and
And the number of input pulse signals of the engine rotation sensor 94 are added
Do it. Here, 0.5 second cycle counter effective flag
Is set every 0.5 seconds after reset.
This is a flag that is reset.
maintain. Then, 0.5 seconds after starting,
0.5 second cycle counter valid flag is set
As a result, the determination result in step S41 is a positive determination.
It Next, the routine proceeds to step S46, where the traveling speed is
Determining whether the count value of the degree counter is 7 or more
It If the count value is 7 or more, then 0.5 seconds
Reset the cycle counter (S49) and wait 0.5 seconds.
Reset the icicle counter valid flag (S50).
The running speed counter and the engine rotation counter.
(S51). Further, in step S46, a negative determination is made.
Even if there is, the power of the engine rotation counter is checked in step S47.
If the und value is 40 or more, step S49
~ The operation of S51 is performed. Then, a negative determination is made in step S46.
And if the determination in step S47 is negative,
If the count value of the running speed counter is less than 7, and
When the count value of the engine rotation counter is less than 40
To step S48, the work speed control abnormality flag
The rug is set. This work speed control abnormality flag is
To the ring cone motor 42 while
No control output. As described above, in the fourth embodiment, the engine rotation
Even if the sensor 94 fails, the traveling speed sensor 3
As long as a certain number of pulse signals are output from 5
Determines that the engine H is rotating,
The control of the cone motor 42 is continued. Therefore, the engine
Even if only the rotation sensor 94 fails
It has the advantage that it does not have to be interrupted. Further, the traveling speed sensor used for the work speed control
The output signal of the service 35 is used to determine that the engine H is rotating.
Since the configuration is used as a disconnection criterion, the engine H
The engine rotation sensor 9 is a dedicated sensor for rotation detection.
In addition to 4, another one, for example, a ring cone transmission 18
Compared to the configuration provided near the input shaft 19 of
It is simple, and the manufacturing cost can be kept low.
There is an advantage. In the fourth embodiment, the engine H is
The traveling speed sensor 3 is used as a criterion for determining that the vehicle is rotating.
The output signal of 5 was used, but the alternative
Oil that detects the lubricating oil pressure of the engine H as a disconnection criterion
Using the detection signal of the pressure switch, the engine H
It may be configured to detect the presence or absence of rotation. Next, a fifth embodiment related to the present invention will be described.
Explain. Working speed control device prototyped by the inventor of the present invention
As described above, the HST operation lever 5 in the driver's seat
The lever sensor 78 detects the operation amount of 7 and
The ring cone is changed by an angle according to the operation amount of the work lever 57.
Position control to operate the shifter 38 of the speed machine 18,
If the position control of the
Set the target work speed according to the traveling speed detected by
The target work speed and the work speed detected by the work speed sensor 36 are equal to each other.
To operate the shifter 38 of the ring cone transmission 18
The rotation speed control to be performed and the control system are performed in this order.
Configured. However, in this work speed control device
Is operated when the auxiliary shift lever 79A is moved to the neutral position.
Even when the power transmission to the traveling section G is off, the HST
When the operating lever 57 is operated to the speed increasing side, position control is performed.
Is started and the shifter 38 moves, so it is not stopped.
Because the reaping section A and the grain culm conveying section C are activated,
There was a problem that it was dangerous. This is the fifth embodiment
It is intended to solve problems. In the fifth embodiment, the control section J will be described later.
A stop monitoring timer that operates like this is provided (see Fig. 17).
See). The other mechanical structure is the same as that of the first embodiment.
The same, only the control is different as follows
Therefore, the description thereof is omitted. Now, the control of the fifth embodiment will be described.
And will be described in detail with reference to the flowchart of FIG. First
In step S61, the pulse of the traveling speed sensor 35
The signal is detected by determining whether or not the signal is detected.
When setting the stop monitoring timer,
Reset (S62, 63). Next, step S
At 66, it is determined whether or not the stop flag is set,
When a negative determination is made, the process proceeds to step S67. This
In step S67, the position control described above,
The shifter 38 is moved according to the operation amount of the bar sensor 78.
Take control. Next, in such step S67
During position control, the auxiliary transmission lever 79A
When operated to the ral position, the power transmission to the traveling section G
Since the vehicle is in the disconnection state, the traveling speed sensor 35 detects the traveling speed.
It will not come out. Therefore, a negative determination is made in step S61.
Then, the process proceeds to step S64. In step S64,
Whether the stoppage monitoring timer has finished measuring for a certain period of time
Separately, when finished, the process proceeds to step S65 and stops.
Set car flag. This stop flag is set
While operating, the target work speed of the ring cone transmission 18 is
0 rpm regardless of the detection value of the lever sensor 78
To do. Therefore, next, the pulse signal of the traveling speed sensor 35
Position control in step S67 until detection
Is not performed, and the reaping section A and the grain culm conveying section C are stopped.
Become. As described above, in the fifth embodiment, the auxiliary transmission lever
79A is operated to the neutral position and power transmission is cut off
If it is, the HST operation lever 57 is operated to the acceleration side.
Even so, the position control is activated and the shifter 38 moves.
Since it does not move, the harvesting section A and grain transfer
Part C does not start and does not pose a danger. In the fifth embodiment, the auxiliary shift lever is
As a standard for judging whether 79A is neutral
Using the output of the traveling speed sensor 35, the traveling speed sensor 3
When the detected value of 5 is 0 rpm, the auxiliary shift lever 79A
The configuration was determined to be neutral, but this configuration
Instead of the potentiometer, the potentiometer is
A sub-transmission lever sensor (not shown) consisting of a meter, etc.
A sub shift is provided based on the detection value of this sub shift lever sensor.
It may be configured to detect the operation position of the lever 79A.
For the control in this case, refer to the flowchart of FIG.
First, the detected value of the auxiliary shift lever sensor is
While reading, the operation position of the auxiliary speed change lever 79A is
It is determined whether it is a toral (S71) and it is not neutral.
If not, the position control described above is performed (S7).
2). In step S71, it is neutral.
The control unit J based on the measured value of the stop monitoring timer.
Is the auxiliary shift lever 79A operated in neutral?
The ring cone motor 42
High speed output is performed (S73, S74). As a result, Ringco
The reaper section A and the grain culm transport section C on the output side of the chain transmission 18
Decelerate and stop. Therefore, in this case also,
The same effect can be obtained. As described above in detail, in the present invention
Is for a certain period of time after the combine is stopped
Since it operates, the grain culms sandwiched by the grain culm transport section are transported to the grain culm.
Transfers to the middle and rear of the grain culm transport section without stagnation
As a result, the grain culms will be held securely, which will prevent the grain culms from falling.
It is possible to eliminate the waste caused by the operation, and the labor of the operator's frequent operations.
This has the effect of reducing power.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a functional block diagram corresponding to the present invention. FIG. 2 is a side view showing the combine of the embodiment of the present invention. FIG. 3 is a plan view showing a combine of the embodiment of the present invention. FIG. 4 is a diagram schematically showing a combine power transmission mechanism of the embodiment of the present invention. 5A and 5B are a ring cone transmission and peripheral equipment thereof, wherein FIG. 5A is an actual side view thereof, and FIG. 5B is a conceptual view thereof. FIG. 6 is a perspective view showing a configuration example of an operation unit in a driver's seat. FIG. 7 is a diagram schematically showing a connection between a control unit and its peripheral devices. FIG. 8 is a diagram schematically showing work modes “standard mode” and “falling mode”. FIG. 9 is a flowchart showing an example of control according to the first embodiment. FIG. 10 is a side view showing a main part of the second embodiment. FIG. 11 is a flowchart showing an example of control of the second embodiment. FIG. 12 is a flowchart showing an example of control according to the third embodiment. FIG. 13 is a flowchart showing an example of control according to the fourth embodiment. FIG. 14 is a flowchart showing an example of control according to the fifth embodiment. FIG. 15 is a flowchart showing another control example of the fifth embodiment. 16 (a) to (c) are second to fourth embodiments.
It is a figure which shows schematically the connection of the control part and its peripheral device of an Example. FIG. 17 is a diagram schematically showing the connection of the control unit and its peripheral devices according to the fifth embodiment. [Explanation of Codes] 18 Ring Cone Transmission 35 Travel Speed Sensor 36 Work Speed Sensor 38 Shifter A Mowing Section C Grain Crane Transfer Section H Engine J Control Section

Claims (1)

Claims: A travel stop detection means for detecting a travel stop of a combine, a counter for measuring an elapsed time after the travel stop according to an output of the travel stop detection means, and a travel stop based on an output of the counter. A combine grain culm transport speed control device comprising: power transmission means for transmitting the power of the prime mover to the grain culm transport unit for a certain period of time thereafter.