JP3356938B2 - Combine grain discharger - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine grain discharging device equipped with a discharge auger for discharging grains stored in a Glen tank to the outside so as to be able to raise and lower and rotate.

[0002]

2. Description of the Related Art The above-described combine grain discharging device is provided with a turning drive means for making the discharging auger turnable. As disclosed in, for example, JP-A-6-249320, the turning drive means includes a turning case rotatably supported on a vertical feed screw conveyor around its axis, and an outer periphery of the turning case. It is composed of a fixed large-diameter gear, an electric motor provided with a pinion that meshes with the large-diameter gear, and the like. In addition, the electric motor has a reduction mechanism including a worm gear having a large braking force, which prevents an unexpected turning caused by the weight of the discharging auger during a grain discharging operation on a slope where the body is relatively inclined. An orthogonal shaft type geared motor having a section is employed. For this reason, in the past, there has been no configuration in which a dedicated braking means for fixing and holding the discharge auger at a desired turning position is newly provided in the above-described combine grain discharging device.

[0003]

However, if an orthogonal axis type geared motor is used as the electric motor for rotating the discharge auger as in the above-mentioned prior art, the grain discharge on a slope where the body is relatively inclined is large. Although unexpected turning caused by the weight of the discharge auger during operation can be prevented, there is a problem that the turning speed of the discharge auger is significantly reduced, and in order to improve the work efficiency of grain discharge work There was room for improvement.

In recent years, therefore, the use of a parallel shaft type geared motor having a speed reduction mechanism section composed of a spur gear capable of increasing the rotation speed of the discharge auger has been adopted as the electric motor of the rotation drive means. The work efficiency of the grain discharging work is improved. However, if a parallel shaft type geared motor is adopted as the electric motor, the turning speed of the discharge auger can be increased, but the braking force of the geared motor is reduced, so that the aircraft is relatively When performing the grain discharging work by the grain discharging device on a steep slope, the braking force of the geared motor loses the weight of the discharging auger,
A geared motor of an orthogonal axis type, in which the discharge auger gradually turns to the lower side in the inclination direction due to its own weight, and the discharge port of the discharge auger is displaced from a desired grain discharge point (for example, a carrier bed). The inconvenience that has been solved is newly generated. Therefore, at the time of grain discharging work on a slope where the machine body is relatively greatly inclined, a turning operation for returning the discharge port of the discharge auger to a desired grain discharging location is required.

That is, even if a parallel shaft type geared motor capable of increasing the rotation speed of the discharge auger is simply used as the electric motor of the rotation drive means, the weight of the discharge auger may vary depending on the condition of the work place. Inadvertent turning caused by the above causes the discharge outlet of the discharge auger to deviate from the desired grain discharge location, which requires time and labor to correct it. It is hard to say that the efficiency was improved, and there is still room for improvement in improving the work efficiency of the grain discharging work.

SUMMARY OF THE INVENTION An object of the present invention is to provide a grain discharger in which the turning speed of a discharge auger is increased so as to prevent unexpected turning of the discharge auger due to its own weight.
An object of the present invention is to improve the work efficiency at the time of grain discharging work.

[0007]

In order to achieve the above object, according to the first aspect of the present invention, the discharge auger for discharging the grains stored in the Glen tank to the outside can be undulated and operated. In a combine grain discharging device equipped so as to be capable of turning operation, a braking means capable of switching between a braking state in which the discharge auger is fixedly held at a desired turning position and a non-braking state in which the discharging auger is allowed to rotate. Automatic storage operation means for automatically storing the discharge auger in a predetermined storage position based on a command from the automatic storage command means, and upper limit detection means for detecting that the discharge auger reaches the rising limit position. When the upper limit detecting means detects that the discharge auger reaches the rising limit position during the automatic storage operation of the discharge auger by the automatic storage operation means, the braking is performed. Stage is configured to switch to a non-braking state, aircraft turning detecting the hand for detecting the turning operation of the traveling machine body
A step is provided, and the turning of the traveling body is performed by the body turning detecting means.
When the turning operation is detected, the braking means is switched to the non-braking state.
It is configured to be replaced .

According to the first aspect of the invention, if the braking means is switched to the braking state after the discharge auger is turned to a desired turning position, the discharge auger is fixedly held at the desired turning position. Therefore, even if the work area where the grain discharge operation is performed is on a slope where the machine body is relatively inclined, the discharge auger may unexpectedly turn to the lower side in the inclination direction due to the weight of the discharge auger, etc. Can be prevented from being inconvenient such that the discharge port of the target is displaced from a desired grain discharge location. As a result, it is possible to eliminate a time-consuming and labor-intensive correction operation when the discharge port of the discharge auger deviates from the desired grain discharge location. Also, by providing the braking means, it is not necessary to provide the electric motor of the turning drive means for turning the discharge auger with a large braking force for preventing an unexpected turning caused by the weight of the discharge auger, etc. As the electric motor of the turning drive means, it is possible to employ a parallel shaft type geared motor that has a low braking force as a geared motor but can increase the turning speed of the discharge auger.

Accordingly, the provision of the braking means makes it possible to prevent an unexpected turning due to the weight of the discharge auger or the like, whereby the time when the discharge port of the discharge auger is displaced from the desired grain discharge location can be reduced. A parallel shaft type geared motor that can increase the turning speed of the discharge auger can be adopted as the electric motor of the turning drive means, while eliminating the need for labor-intensive correction work. The work efficiency at the time can be improved.

[0010] The automatic store operation in moving the discharge auger automatic retraction operating means based on a command from the automatic storage command means is fixed and held at the desired pivoted position by the braking action of the braking means in a predetermined storage position When the upper limit detecting means detects that the discharge auger has reached the rising limit position, the braking means fixedly holding the discharge auger at the desired turning position automatically switches to the non-braking state. As a result, compared to the case where the switching of the braking means to the non-braking state is performed by a unique manual operation,
Since the trouble of switching the braking means to the non-braking state during the automatic storage operation of the discharge auger can be eliminated, it is possible to improve the simplicity of the operation required for automatically storing the discharge auger. Further, it is possible to prevent forgetting to switch the braking means to the non-braking state when automatically storing the discharge auger, which may occur when the braking means is switched to the non-braking state by an independent manual operation. If the switching means is forgotten, the automatic storage operation (turning operation) of the discharge auger is performed even though the braking means is in the braking state, and the braking means or the turning drive means (electric motor, transmission gear, etc.) is damaged. This can avoid the inconvenience of doing so.

Incidentally, when the discharge auger is moved from a desired turning position to a predetermined storage position by the automatic storage operation of the automatic storage operation means, the discharge auger may pass above the control section. Therefore, in the automatic storage operation of the discharge auger by the automatic storage operation means, the discharge auger is
From the point of avoiding the discharge auger contacting the operator during the automatic storage operation, the swing operation was performed to the predetermined storage position after the erect operation was performed to the rising limit position at the desired rotation position, and the predetermined storage position was reached. Later, it is operated to fall down to a predetermined storage posture. Therefore, in consideration of this operation procedure, as described above, the switching of the braking means to the non-braking state at the time of the automatic storage operation of the discharge auger detects that the discharge auger reaches the rising limit position by the upper limit detection means. In this case, for example, when the switching of the braking means to the non-braking state is performed so that the automatic storage operation of the discharge auger is started, for example, It is possible to prevent a problem that the discharge auger comes into contact with the operator due to an unexpected turning during the operation of raising the discharge auger to the rising limit position, which may occur.

Therefore, since the operation required for automatically storing the discharge auger can be improved, the work efficiency at the time of the grain discharging operation can be further improved. In addition, it is possible to prevent the braking means or the turning drive means from being damaged due to forgetting to switch the braking means to the non-braking state when automatically discharging the discharge auger, and to prevent the grain discharging work caused by the damage. In addition, it is possible to prevent a decrease in work efficiency at the time of the above and prevent contact with the operator due to an unexpected turning of the discharge auger when automatically storing the discharge auger.

In addition to the above-described functions and effects, the traveling body
Body turning detection means for detecting a turning operation of the
A turning operation of the traveling body is detected by turning detection means.
Then, the braking means is switched to the non-braking state.
By doing so, the following effects can be achieved.
it can.

When the turning operation of the traveling body is performed, the turning operation is performed.
Aircraft turning detection means detects the work, and based on the detection,
The braking means automatically switches to the non-braking state.
You. In other words, the discharge auger is controlled by the braking action of the braking means.
In a state where it is fixedly held at the desired turning position,
A body swivel operation is performed, thereby preventing the discharge auger.
Swing in the turning direction caused by turning operation of the traveling aircraft
The turning operation of the traveling aircraft was performed even when force was applied.
The braking means is switched to the non-braking state.
Therefore, the swiveling of the discharge auger by the swinging force
Will be tolerated. This allows the traveling aircraft to turn
Even when operation is performed, the discharge auger is controlled by the braking means.
It is configured to be fixedly held at a desired turning position for operation.
A raw Jill concern in the case was, due to the turning operation of the vehicle body
Braking or turning by the swinging force of the discharged auger
Avoids inconvenience such as breakage of drive means
become able to.

[0015] Thus, the exhaust due to the turning operation of the vehicle body
Braking means or by the swinging force in the turning direction of the exit auger
Can avoid damage to the turning drive means,
Decrease in work efficiency during grain discharge work due to damage
Can now be prevented .

According to the second aspect of the present invention,
In a grain discharge device of a combine equipped with a discharge auger that discharges grains stored in a Glen tank to the outside so as to be able to undulate and swivel, a braking state in which the discharge auger is fixedly held at a desired turning position; Braking means capable of switching to a non-braking state permitting the turning movement of the discharge auger, and body turning detecting means for detecting turning operation of the traveling body, providing turning operation of the traveling body by the body turning detecting means. Is detected, the braking means is switched to a non-braking state.

According to the second aspect of the present invention, a braking state in which the discharge auger is fixedly held at a desired turning position;
Since the braking means which can be switched to a non-braking state that allows the swiveling movement of the discharge auger is provided, if the braking means is switched to the braking state after turning the discharging auger to a desired turning position, the Since the discharge auger can be fixedly held at a desired turning position, even if the work area where the grain discharging operation is performed is a slope where the machine body is inclined relatively large, the discharge auger is reduced due to the weight of the discharge auger or the like. It is possible to prevent the inconvenience of turning unexpectedly downward in the inclination direction and disengaging the discharge port of the discharge auger from a desired grain discharge location. As a result, it is possible to eliminate a time-consuming and labor-intensive correction operation when the discharge port of the discharge auger deviates from the desired grain discharge location. Also, by providing the braking means,
The electric motor of the turning drive means for turning the discharge auger,
It is no longer necessary to provide a large braking force to prevent unexpected turning due to the weight of the discharge auger, etc. A parallel shaft type geared motor that can achieve high speed can be adopted.

Accordingly, the provision of the braking means makes it possible to prevent unexpected turning of the discharge auger due to its own weight or the like, whereby the time when the discharge port of the discharge auger deviates from the desired grain discharge location can be reduced. A parallel shaft type geared motor that can increase the turning speed of the discharge auger can be adopted as the electric motor of the turning drive means, while eliminating the need for labor-intensive correction work. The work efficiency at the time can be improved.

Further, a body turning detecting means for detecting a turning operation of the traveling body is provided thereon, and when the turning operation of the traveling body is detected by the body turning detecting means, the braking means is switched to a non-braking state. With such a configuration, when the turning operation of the traveling body is performed, the turning operation of the traveling body is detected by the body turning detection unit, and the braking unit automatically switches to the non-braking state based on the detection. In other words, in a state where the discharge auger is fixedly held at the desired turning position by the braking action of the braking means, the turning operation of the traveling body is performed, whereby the turning caused by the turning operation of the traveling body with respect to the discharge auger is performed. Even if a swinging force in the direction is applied, since the braking means is switched to the non-braking state by the swing operation of the traveling body, the swing of the discharge auger by the swinging force is allowed. . Accordingly, even when a turning operation of the traveling body is performed, a discharge caused by the turning operation of the traveling body which may occur when the discharge auger is configured to be fixedly held at a desired turning position by the braking action of the braking means. The disadvantage that the braking means or the turning drive means is damaged by the swinging force of the auger can be avoided.

Therefore, it is possible to prevent the braking means or the turning drive means from being damaged by the swinging force in the turning direction of the discharge auger caused by the turning operation of the traveling machine body, and to reduce the work efficiency in the grain discharging work caused by the damage. The drop can be prevented.

According to the third aspect of the present invention,
3. The invention according to claim 2 , further comprising discharge detecting means for detecting a state of grain discharge of the discharge auger, wherein when the discharge detecting means detects a state of kernel discharge of the discharge auger, the braking means is braked. It was configured to switch to the state.

According to the third aspect of the present invention, when the grain discharging operation is started by the grain discharging device after the discharging auger is turned to the desired turning position, the discharging auger is brought into the grain discharging state accordingly. That is, the discharge detecting means detects the occurrence, and the braking means automatically switches to the braking state based on the detection. This eliminates the need to switch the braking means to the braking state after turning the discharge auger to the desired turning position, as compared with a case where the braking means is switched to the braking state by a manual operation. Therefore, it is possible to improve the simplicity of the operation required for performing the grain discharging operation. Also, forgetting to switch the braking means to the braking state after turning the discharge auger to the desired turning position, which may occur when the switching of the braking means to the braking state is performed by an independent manual operation. Since the switching can be prevented, it is possible to avoid a problem that the discharge auger unexpectedly turns during the grain discharging operation due to forgetting the switching, whereby the discharge port of the discharge auger is displaced from a desired grain discharge point. Correction work requiring time and labor can be reliably eliminated.

Therefore, it is possible to improve the simplicity of the operation required for performing the grain discharging operation, and to correct the time and labor when the outlet of the discharging auger is displaced from the desired grain discharging point. Since the work can be reliably eliminated, the work efficiency in the grain discharging work can be further improved.

According to the fourth aspect of the present invention,
The invention according to claim 2 or 3, further comprising a movement detecting means for detecting a movement operation of the discharge auger, wherein when the movement detection means detects a movement operation of the discharge auger, the braking means is in a non-braking state. It was configured to switch to.

According to the fourth aspect of the present invention, when a moving operation for turning the discharge auger fixed and held at a desired turning position is performed by the braking action of the braking means, the moving detecting means detects the moving operation. And based on that detection,
The braking means automatically switches to the non-braking state. As a result, compared to the case where the switching of the braking means to the non-braking state is performed by a unique manual operation,
Since the trouble of switching the braking means to the non-braking state when turning the discharge auger from the desired turning position can be eliminated, it is possible to improve the simplicity of the operation required when turning the discharge auger from the desired turning position. become. Also,
Prevents forgetting to switch the braking means to the non-braking state when turning the discharge auger from the desired turning position, which may occur when the braking means is switched to the non-braking state by a unique manual operation. Since the switching means forgets the switching operation, the discharge auger is turned even though the braking means is in a braking state, and the turning means (such as an electric motor or a transmission gear) for turning the braking means or the discharging auger is used. Inconveniences such as breakage can be avoided.

Therefore, the operation required for turning the discharge auger from a desired turning position can be improved in simplicity, so that the work efficiency in the grain discharging operation can be further improved. Further, it is possible to prevent the braking means or the turning drive means from being damaged due to forgetting to switch the braking means to the non-braking state when turning the discharge auger from the desired turning position, and to prevent the grain caused by those damages from being damaged. This has made it possible to prevent a reduction in work efficiency during the grain discharging work.

[0027]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the overall side view of the self-removing combine.
FIG. 2 shows an overall plan view of the self-removable combine. The combine is composed of a traveling machine body 2 having a pair of right and left crawler traveling devices 1 and a cutting unit 3 mounted on a front portion of the traveling machine body 2. A threshing device 4 for threshing the grain stalks cut by the cutting unit 3 to selectively collect the grains, a Glen tank 5 for storing the grains selectively collected by the threshing device 4, and a Glen tank 5
Control unit 6 and Glen tank 5
And a grain discharging device 7 that discharges the grains stored in the hopper to a truck bed or the like, which is an example of a grain discharging point.

As shown in FIG. 3, the left and right crawler traveling devices 1 include a traveling clutch 8, a continuously variable transmission 9, and
Engine 11 transmitted via transmission case 10
It is driven by power from The transmission case 10 includes left and right crawler traveling devices 1.
And a hydraulic operating mechanism 12B for switching the operating state of the left and right clutches and brakes 12A. When the steering lever 13 is swung from the neutral position, the operation mechanism 12
The operation of one clutch / brake 12A is switched from the state of “clutch → on / brake → off” to the state of “clutch → off / brake → off” by the operation of B to interrupt the transmission to the one crawler type traveling device 1. Thus, a gentle turning traveling with a relatively large turning radius can be realized.

Further, by further swinging the steering lever 13, the operating state of one clutch / brake 12A is changed from the state of "clutch → off / brake → off" to "clutch → off / off".
By switching to the “brake → on” state and applying a braking force to one of the crawler-type traveling devices 1, a sharp turning traveling with a relatively small turning radius can be realized. The clutch / brake mechanism 12 and the steering lever 1
3 is a lever sensor S1 for detecting a swing operation amount of the steering lever 13, and a control device 1 for controlling the operation of the clutch / brake mechanism 12 based on the detection from the lever sensor S1.
4 are linked.

As shown in FIGS.
Is a bottom screw conveyor 15 disposed in the front and rear direction along the bottom of the Glen tank 5, a vertical feed screw conveyor 16 extending upward from the transport end of the bottom screw conveyor 15, and a vertical feed screw conveyor 16. A discharge auger 1 mounted on the upper part of the upper part so as to be able to swing up and down around a horizontal axis P1 and swing and swing around a vertical axis P2.
7. undulation drive means 1 for undulating the discharge auger 17 around the horizontal axis P1 with respect to the vertical feed screw conveyor 16
8 and a turning drive means 19 for turning the discharge auger 17 around the longitudinal axis P2 with respect to the vertical feed screw conveyor 16. The bottom screw conveyor 15 is constituted by a conveyor screw 15A whose end on the transport start end side is exposed to the front side of the Glen tank 5, and has a bottom end from the engine 11 at the extension end. A belt tension type discharge clutch 2 for intermittently transmitting power to the screw conveyor 15
0 output pulley 20A is mounted. The vertical feed screw conveyor 16 includes a conveyor screw 16A interlockingly connected to the bottom screw conveyor 15 via a bevel gear type interlocking mechanism (not shown), and a cylindrical case 16B surrounding the screw 16A and communicating with the Glen tank 5. It is constituted by. The discharge auger 17 includes a conveyor screw 17A interlockingly connected to a conveyor screw 16A of the vertical feed screw conveyor 16 via a bevel gear type interlocking mechanism (not shown), and a cylindrical case of the vertical feed screw conveyor 16 that surrounds the conveyor screw 17A. Cylindrical case 17B that is connected to rotary shaft 16B via rotating case 21
It is constituted by. The rotating case 21 has a longitudinal axis P on the cylindrical case 16B of the vertical feed screw conveyor 16.
2 is connected so as to be able to rotate relative to each other.
7 is connected to the cylindrical case 17B so as to be relatively rotatable around the horizontal axis P1. The discharge auger 17 has a discharge port 17a for discharging the grain at the tip of the cylindrical case 17B. That is, the bottom screw conveyor 15, the vertical feed screw conveyor 16, and the discharge auger 17
Is the engine 11 transmitted via the discharge clutch 20
Driven by the power from the
Are discharged from the discharge port 17a of the discharge auger 17.

As shown in FIGS. 3 and 4, the undulating drive means 18 includes a rotating case 21, a hydraulic cylinder 22 erected between the rotating case 21 and the cylindrical case 17 B of the discharge auger 17, and a hydraulic cylinder 22. The control unit 6 includes an electromagnetic control valve 23 for switching the flow state of hydraulic oil to the cylinder 22, and the like.
Alternatively, by instructing the control device 14 to raise or lower the discharge auger 17 by operating the lowering switch 25, the lowering operation of the discharge auger 17 to a desired raising and lowering position can be performed. Turning drive means 1
9 is a longitudinal feed screw conveyor 1 having a rotating case 21, a large-diameter gear 26 fixed to the outer periphery of the rotating case 21, and a pinion 27 meshing with the large-diameter gear 26.
6. The electric motor 28 supported and fixed to the cylindrical case 16B
By operating a left turn switch 29 or a right turn switch 30 provided on the control unit 6,
By issuing a left turn command or a right turn command of the discharge auger 17 to the control device 14, the discharge auger 17 is controlled.
Can be turned to a desired turning position (grain discharge position). As the electric motor 28, a parallel shaft type geared motor provided with a speed reduction mechanism 28A composed of a spur gear (not shown) is employed in order to increase the turning speed of the discharge auger 17.

As shown in FIGS. 1, 3 and 4, the electric motor 28 of the turning drive means 19 is provided with an electromagnetic brake 31 as a braking means A. The electromagnetic brake 31 is switched to a braking state. By applying a braking force to a rotating shaft (not shown) of the electric motor 28, the discharge auger 17 can be fixedly held at a desired turning position. In addition, the electromagnetic brake 31 is switched to the non-braking state to cancel the application of the braking force to the rotating shaft of the electric motor 28, thereby allowing the discharge auger 17 to turn from a desired turning position.

With the above configuration, if the electromagnetic brake 31 (braking means A) is switched to the braking state after the discharge auger 17 is turned to the desired turning position, the discharge auger 17 is fixed at the desired turning position. Therefore, even if the work site where the grain discharging operation is performed is a slope where the traveling machine body 2 is relatively inclined, the discharge auger 17 due to the weight of the discharge auger 17 or the vibration of the machine body or the like can be maintained. Of the discharge auger 17 can be prevented.
It is possible to prevent such a problem that a is deviated from a grain discharge point (a truck bed or the like) which is a desired turning position. This also gives
Correction work required when the discharge port 17a of the discharge auger 17 deviates from a desired turning position can be eliminated.

As shown in FIGS. 1 to 3, a clutch lever 32 for switching the operation state of the discharge clutch 20 is provided at the front of the Glen tank 5, and the clutch lever 32 is "on".
And a limit switch S2 for detecting that the operation has been performed to the position and outputting it to the control device 14. The control device 14 controls the clutch lever 3 by the limit switch S2.
2 is detected, the discharge auger 17 (the grain discharging device 7) detects that the grain is discharged, and switches the electromagnetic brake 31 to the braking state based on the detection. It has become. In other words, the limit switch S2 is a discharge detecting unit B that detects the state of the discharge of the grain of the discharge auger 17.

According to the above configuration, after the discharge auger 17 is turned to a desired turning position (grain discharge point), the clutch lever 32 is operated to start the grain discharge operation by the grain discharge device 7. The limit switch S2 (discharge detecting means B) detects that the discharge auger 17 has entered the grain discharging state, and the electromagnetic brake 31 (braking means A) is braked by the control operation of the control device 14 based on the detection. The discharging auger 17 is moved to the desired turning position as compared with the case where the electromagnetic brake 31 is switched to the braking state by a manual operation of its own. It is possible to eliminate the trouble of switching the electromagnetic brake 31 to the braking state after turning, thereby improving the simplicity of the operation required for performing the grain discharging work. It has become to so that. In addition, when the electromagnetic brake 31 is switched to the braking state by an independent manual operation, the discharge auger 1 may be generated.
Electromagnetic brake 3 after turning 7 to a desired turning position
Since it is possible to prevent forgetting to switch to the braking state of No. 1, it is possible to avoid the problem that the discharge auger 17 unexpectedly turns during the grain discharging operation due to the forgetting to switch.

The controller 14 operates the upright switch 24, the downturn switch 25, the left turn switch 29, or the right turn switch 30 to operate the upright switch 24, the downturn switch 29, or the rightturn switch 30 so that the augment command, the downturn command, the left turn command, etc. When a turn command or a right turn command is issued, the operation of the up / down drive means 18 or the turn drive means 19 is controlled based on the command, and the electromagnetic brake is operated before the discharge auger 17 is raised or turned. 31 is switched to a non-braking state. That is, the control device 14 controls the discharge auger 17
It is configured to function also as a movement detection means C for detecting the movement operation of the user.

With the above-described configuration, it is possible to change the grain discharge location of the discharge auger 17 fixed and held at a desired turning position (grain discharge location) by the braking action of the electromagnetic brake 31 (braking means A). When the moving operation is performed, the controller 14 (movement detecting means C) detects the moving operation, and the electromagnetic brake 31 is automatically switched to the non-braking state by the control operation based on the detection. Thus, when the discharge auger 17 is turned from a desired turning position, the electromagnetic brake 31 is in the non-braking state, as compared with the case where the electromagnetic brake 31 is switched to the non-braking state by an independent manual operation. Can be eliminated, and thus the simplicity of the operation required for turning the discharge auger 17 from the desired turning position can be improved. There. In addition, when the discharge auger 17 is turned from a desired turning position, the electromagnetic brake 31 may be switched to the non-braking state, which may occur when the electromagnetic brake 31 is switched to the non-braking state by an independent manual operation. Can be prevented from being forgotten to be switched, so that the electromagnetic brake 31 or the turning drive means 19 is damaged by the turning operation of the discharge auger 17 even though the electromagnetic brake 31 is in the braking state due to the forgoing switching. Can be avoided.

The control device 14 includes an upright switch 24,
When the moving operation of the discharge auger 17 based on the operation of the falling switch 25, the left turning switch 29, or the right turning switch 30 ends, the electromagnetic brake 31 is automatically switched to the braking state with the end. I have.

As shown in FIGS. 3 and 4, the hydraulic cylinder 22 of the undulation drive means 18 detects the arrival of the discharge auger 17 at the rising limit position from the amount of expansion and contraction of the hydraulic cylinder 22 and outputs it to the control device 14. A stroke sensor S3 as a detecting means D is provided in parallel. A rotary encoder S4 that detects the turning position of the discharge auger 17 from the amount of rotation of the sensor gear 33 meshing with the large-diameter gear 26 of the rotating case 21 and outputs the rotation position to the control device 14 is provided on the cylindrical case 16B of the vertical feed screw conveyor 16. Equipped. Control device 14
The receiver 34 (see FIGS. 1 and 2) in which the discharge auger 17 is erected on the left side of the control unit 6 of the traveling body 2
A predetermined storage position in the turning direction of the discharge auger 17 that is located immediately above the storage position is stored. Then, when the storage command of the discharge auger 17 is instructed by operating the storage switch 35 provided on the control unit 6, the control device 14 controls the rotation of the discharge auger 17 from the desired rotation position to the predetermined storage position. To avoid contact with the pilot at
First, until the discharge auger 17 reaches the rising limit position by the stroke sensor S3, the raising / lowering driving means 18 is operated to operate the discharging auger 17 at a desired turning position, and the discharging auger 17 is raised. After reaching the limit position, the electromagnetic brake 31 is switched to the non-braking state,
Thereafter, until the storage position of the discharge auger 17 stored in the control device 14 matches the turning position of the discharge auger 17 detected by the rotary encoder S4, the turning drive means 19 is operated to cause the discharge auger 17 to move. Turn operation,
After the discharge auger 17 reaches the predetermined storage position, the up-and-down driving means 18 is again turned on until the storage augmentation switch S5 mounted on the receiver 34 detects that the discharge auger 17 is received and supported by the receiver 34. Is operated to cause the discharge auger 17 to fall down at a predetermined storage position. That is, the storage switch 35 is an automatic storage instruction unit E that instructs the control device 14 to execute an automatic storage operation for automatically storing the discharge auger 17 in a predetermined storage position. The control device 14 also includes a storage switch 35
It is configured to function also as an automatic storage operation means F for automatically storing the discharge auger 17 at a predetermined storage position based on a command from.

With the above configuration, the control device 14 is controlled based on a command from the storage switch 35 (automatic storage command means E).
During the automatic storage operation in which the automatic storage operation means F moves the discharge auger 17 fixed and held at a desired turning position to a predetermined storage position by the braking action of the electromagnetic brake 31 (braking means A), the discharge auger 17 is moved. Is reached by the stroke sensor S3 (upper limit detecting means D), the electromagnetic brake 31 fixedly holding the discharge auger 17 at the desired turning position is automatically switched to the non-braking state. As a result, as compared with the case where the switching of the electromagnetic brake 31 to the non-braking state is performed by a manual operation of its own, the electromagnetic brake 31 is operated when the discharging auger 17 is automatically stored. It is possible to eliminate the trouble of switching to the non-braking state, thereby improving the simplicity of the operation required for automatically storing the discharge auger 17. You have me. Also, the electromagnetic brake 31
Can be prevented from being forgotten to switch the electromagnetic brake 31 to the non-braking state when the discharge auger 17 is automatically retracted, which may occur when switching to the non-braking state is performed by an original manual operation. Therefore, even if the electromagnetic brake 31 is in a braking state due to forgetting to switch, the automatic storage operation (turn operation) of the discharge auger 17 is performed.
Is performed, it is possible to avoid the disadvantage that the electromagnetic brake 31 or the turning drive means 19 is damaged. Moreover, the discharge auger 17
Since the switching of the electromagnetic brake 31 to the non-braking state at the time of the automatic storage operation is set to be performed when the stroke sensor S3 detects that the discharge auger 17 has reached the rising limit position, for example, The raising operation of the discharge auger 17 to the rising limit position which may occur when the electromagnetic brake 31 is set to be switched to the non-braking state when the automatic storage operation of the discharge auger 17 is started. The inconvenience that the discharge auger 17 comes into contact with the operator due to the unexpected turning inside can be prevented.

As shown in FIG. 3, the control device 14 detects the swing operation amount of the steering lever 13 in a state where the discharge auger 17 is fixedly held at a desired turning position by the braking action of the electromagnetic brake 31. When the operating state of the clutch / brake mechanism 12 is switched to the turning traveling state based on the detection from the lever sensor S1, the electromagnetic brake 31 is switched to the turning traveling state and the electromagnetic brake 31 is switched to the non-braking state. It is designed to switch. That is, the lever sensor S1 is a body turning detection unit G that detects a turning operation of the traveling body 2.

With the above arrangement, in a state where the discharge auger 17 is fixedly held at a desired turning position by the braking action of the electromagnetic brake 31 (braking means A), the steering lever 13 is held.
When the swing operation of the traveling body 2 is performed by the swing operation of the traveling body 2, the swing operation of the traveling body 2 is performed even if the swinging force in the swing direction caused by the swing operation of the traveling body 2 acts on the discharge auger 17. Is performed, the electromagnetic brake 31 is switched to the non-braking state, so that the swinging of the discharge auger 17 by the swinging force is allowed. Accordingly, even when the turning operation of the traveling machine body 2 is performed, the turning operation of the traveling machine body 2 which may occur when the discharge auger 17 is fixedly held at a desired turning position by the braking action of the electromagnetic brake 31 is performed. Therefore, it is possible to avoid the disadvantage that the electromagnetic brake 31 or the turning drive means 19 is damaged by the swinging force of the discharge auger 17 caused by the above.

The control device 14 switches the operating state of the clutch / brake mechanism 12 to the straight running state based on the detection from the lever sensor S1 (when the steering lever 13 is returned to the neutral position). The electromagnetic brake 31 is switched to a braking state while the clutch / brake mechanism 12 is switched to a straight traveling state.

As shown in FIGS. 1 to 3, on the left and right sides of the distal end side of the discharge auger 17, an external force applied to the discharge auger 17 in the turning direction is detected and a control device 14 is provided.
A pair of left and right pressure-sensitive switches S6 is provided as turning external force detecting means H for outputting the force to the external force. And the control device 14
Is configured to switch the electromagnetic brake 31 to a non-braking state when an external force equal to or greater than a predetermined value is detected by one of the left and right pressure-sensitive switches S6.

With the above configuration, the worker waiting at the grain discharge point can be positioned at the tip of the discharge auger 17 which is located at the grain discharge point during the grain discharge operation. By applying an external force equal to or more than a predetermined value to one pressure-sensitive switch S6 (turning external force detecting means H), the electromagnetic brake 31 (braking means A) can be switched to the non-braking state, and the external force is applied. The discharge auger 17 can be turned by pressing from the pressure-sensitive switch S6 side. This makes it possible to easily adjust the turning direction of the discharge auger 17 with respect to the grain discharge location during the grain discharging operation and change the turning position (the grain discharge position) of the discharge auger 17 from the grain discharge location side. It can be suitably performed.

The control device 14 is configured to switch the electromagnetic brake 31 to the braking state again when the external force exceeding a predetermined value is no longer detected by the left or right pressure-sensitive switch S6.

[Another Embodiment] Hereinafter, another embodiment of the present invention will be listed. Although the self-removing type combine is exemplified in the above embodiment, the whole culm input type may be used. As the braking means A, a disk brake, a drum brake or the like may be adopted. As the discharge detecting means B,
A rotation sensor for detecting the rotation of any of the conveyor screws 15A, 16A, 17A mounted on the grain discharger 7 to detect the state of the discharge of the discharge auger 17; A pressure-sensitive sensor or the like that detects a state of grain discharge of the discharge auger 17 by sensing a change in internal pressure due to the flow of water may be employed. As the upper limit detecting means D, a limit switch or the like which detects the reaching of the discharge auger 17 to the rising limit position by being turned on by contact with the discharging auger 17 having reached the rising limit position may be employed. .
For example, the body turning detecting unit G detects a pair of left and right rotation sensors that detect the rotation speed of each drive shaft in the left and right crawler traveling device 1 and outputs the rotation number to the control device 14, and each of the left and right rotation sensors The control device 14 may be configured to compare the rotation speeds of the drive shafts and detect the turning of the body from the comparison difference.

[Brief description of the drawings]

FIG. 1 is an overall side view of a self-contained combine.

FIG. 2 is an overall plan view of a self-removable combine.

FIG. 3 is a block diagram showing a control configuration.

FIG. 4 is a partial side view of the grain discharging device showing the configuration of the undulating drive means and the turning drive means.

FIG. 5 is a cross-sectional plan view of a tip portion of a discharge auger showing a configuration of a pressure-sensitive sensor according to another embodiment.

FIG. 6 is a vertical sectional front view of the tip of a discharge auger showing a configuration of a pressure-sensitive sensor according to another embodiment.

FIG. 7 is a block diagram showing a control configuration when a torque limiter is provided in the electromagnetic brake.

[Explanation of symbols]

 2 Traveling body 5 Glen tank 17 Discharge auger 37 Torque limiter A Braking means B Discharge detection means C Movement detection means D Upper limit detection means E Automatic storage command means F Automatic storage operation means G Aircraft rotation detection means H External turning force detection means

Continuing on the front page (72) Inventor Ryoji Mizuno 64 Ishizukita-cho, Sakai City, Osaka, Japan, inside Kubota Sakai Factory (72) Inventor Tokumune Ozaki 64, Ishizukitamachi, Sakai City, Osaka Prefecture, inside Kubota Sakai Factory (72) ) Inventor Shigeo Fujita 64, Ishizukita-cho, Sakai-shi, Osaka Inside Kubota Sakai Works Co., Ltd. (56) References JP-A-5-15245 (JP, A) JP-A-3-103120 (JP, A) 7-39242 (JP, A) JP-A 2-131855 (JP, U) JP-A 5-91266 (JP, U) JP-A 6-5421 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) A01F 12/46

Claims (4)

(57) [Claims] 1. A combine grain discharging device provided with a discharge auger that discharges grains stored in a Glen tank to the outside so as to be able to undulate and turn, and fix the discharge auger at a desired turning position. A braking means is provided which can be switched between a braking state to be held and a non-braking state to allow the discharge auger to pivot, and automatically stores the discharge auger at a predetermined storage position based on a command from the automatic storage command means. Automatic storage operation means for detecting the discharge auger reaching the rising limit position, and upper limit detection means for detecting the arrival of the discharge auger to the rising limit position. Is configured to switch to the non-braking state when the vehicle reaches the rising limit position.
And a body turning detecting means for detecting a turning operation of the traveling body.
A turning operation of the traveling body by the body turning detecting means.
When the operation is detected, the braking means switches to the non-braking state.
Combine grain discharging device that is configured as follows . 2. A combine grain discharging device provided with a discharge auger for discharging grains stored in a Glen tank to the outside so as to be able to raise and lower and to be capable of turning, wherein the discharge auger is fixed at a desired turning position. Braking means capable of switching between a held braking state and a non-braking state permitting the turning movement of the discharge auger; a body turning detecting means for detecting a turning operation of the traveling body; and A combine grain discharging device configured to switch the braking unit to a non-braking state when a turning operation of the traveling machine body is detected. 3. A discharge detecting means for detecting a grain discharge state of the discharge auger, and when the discharge detection means detects a kernel discharge state of the discharge auger, the braking means switches to a braking state. The combine grain discharging device according to claim 2, which is configured as described above. 4. A movement detecting means for detecting a movement operation of the discharge auger, wherein when the movement detection means detects a movement operation of the discharge auger, the braking means is switched to a non-braking state. The combine grain discharging device according to claim 2 or 3, wherein