JP2001211736A - Apparatus for conveying grain - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the frequency of operations of an electromagnetic brake installed in the interior of a turning motor of a grain discharging auger of an apparatus for conveying grains and raise the durability of the turning motor. SOLUTION: This apparatus for conveying grains is obtained by installing hysteresis between the car speed for operating a brake and the car speed for opening the brake in the apparatus for conveying the grains equipped with the brake for controlling the turning of a freely turnable auger 10 when the car speed reaches a constant value or above. Since a large load is applied to the brake to cause trouble if the brake for the auger 10 is still operated when the car speed is accelerated, the turning control of the auger 10 for opening the brake for the auger 10 is carried out when the car speed reaches the constant value or above. The hysteresis is provided between the case speed for opening the brake and the car speed for operating the brake to thereby repeat on-off of the brake near the constant value of the car speed of the combine harvester. As a result, hunting can be prevented. Even when the combine harvester travels a hillside at a prescribed tilt angle or above, the hysteresis may be provided for opening and operating the above brake at a prescribed tilt angle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain transport device such as a combine or a grain carrier.

[0002]

2. Description of the Related Art As shown in the prior invention of the present applicant (Japanese Patent Application Laid-Open No. 9-54) shown in FIG. A bottom auger 9a for transferring grains in a horizontal direction at a bottom portion, a vertical auger 11 which is connected to the bottom helix 9a, transports grains in a vertical direction, and is rotatable around a vertical axis; A grain discharging auger 10 is provided, which comprises a horizontal auger 12 which conveys grains in the horizontal direction in connection with the horizontal auger 12 and which is vertically movable up and down and zoomable in the longitudinal direction. The auger outlet 19 is located at a position where the grain is to be discharged during the dumping operation.
Swivel the vertical auger 11 and place the horizontal auger 1
2 and the horizontal auger 12 is zoomed in and out or zoomed in, and when the harvesting work, running on the road, parking in the garage, etc. is not performed, the horizontal auger 1 is not used.
Auger receiver 13 on combine 1 with zooming 2 shortened
To sit and store.

[0003]

In the combine 1, when cutting, threshing, or traveling on a road other than in the threshing operation, as shown in the reference line in FIG. Side auger 12 with body 6
It is stored by being seated on the upper auger receiver 13 to prevent the abrasion auger 10 from swaying, vibrating, falling off, etc. during a mowing operation. The danger of projecting is prevented. Then, when the grains are stored in the Glen tank 9 and the grain is discharged, the combine 1 is moved to the vicinity of the grain transport vehicle, and then the horizontal auger 12 of the grain discharging auger 10 is separated from the auger receiver 13 and rises. Turn or extend,
The auger discharge port 19 is made to face the opening of the grain transport vehicle to perform the grain discharge operation.

[0004] The horizontal auger 12 of the combine 1 shown in FIG.
The upper tube 1 has a narrow gap outside the middle tube 15 containing a spiral 17 for carrying out a grain transport operation.
6 is fitted, and the upper tube 16 is loosely fitted to the middle tube 15 slidably in the axial direction.
Hereinafter, the middle tube 15 and the upper tube 16 may be collectively referred to as a zoom cylinder. The horizontal auger 12 is capable of performing a so-called zoom action that can be extended and contracted by a zoom cylinder.

[0005] Combine 1 is operated in the state shown in FIG.
As shown in the reference line 3, the horizontal auger 1 of the dumping auger 10
2, the auger 10 is swung to the upper part of the vehicle body 6, and is seated on the auger receiver 13 for storage. During the threshing operation, the lateral auger 12 of the auger auger 10 is detached from the auger receiver 13, rises, turns or extends, and The discharge operation is performed with the discharge port 19 facing the opening of the grain transport vehicle.

As shown in FIG. 13, a vertical auger 11 has a turning pinion 11b mounted on an output shaft of a turning motor 11a.
The auger discharge port 19 at the tip of the horizontal auger 12 can be moved in the horizontal direction by the rotation of the vertical auger 11 by driving the rotation gear 11 c meshing with the auger 11.

[0007] The dumping auger 10 is provided with an electromagnetic brake for suppressing the turning in the turning motor 11a. This brake applies a brake to the auger swiveling electromagnetic motor 11a to prevent the auger auger 10 from turning and shifting from a set grain discharge when the kernel is being discharged from the auger auger 10 to a truck or the like. It is something to hang.

In a grain transfer device such as a combine equipped with such an auger brake, a large load is applied to the brake if the auger brake is still operated when the speed of the grain transfer device increases. The auger turning control for releasing the auger brake when the vehicle speed exceeds a certain value is performed because this may cause a brake failure.

The brake for turning control of the auger is activated when the vehicle speed drops to the predetermined value. However, when the combine is running near the predetermined value, the brake is repeatedly turned on and off, and the hunting is performed. Is more likely to break down.

Further, in order to prevent the dumping auger 10 from rotating by its own weight while the combine is running on a slope without the dumping auger 10 sitting on the auger receiver 13,
When the combine tilts at a predetermined tilt angle in a predetermined front-back direction or left-right direction, the brake is operated to prevent the turning of the auger auger 10 due to its own weight by operating the brake.

In this case as well, if the combine runs near the predetermined inclination angle, the brake is repeatedly turned on and off, causing hunting and failure of the brake.

Accordingly, a first object of the present invention is to reduce the number of times of operating an electromagnetic brake provided in a turning motor of a dumping auger to increase the durability of the turning motor.

Further, in a grain conveying device such as a combine having a brake mechanism for holding the grain discharging auger 10 at a grain discharging set position, for example, the grain is discharged from the grain discharging auger 10 to a first truck. Later, for example, in order to discharge the grains to a second truck, the auger 1
When moving the grain conveyor without sitting at 3,
When the vehicle speed exceeds a certain speed, the auger turning control brake may be released. At this time, the grain discharge setting position of the auger may be shifted due to the release of the brake, and the grain may not be discharged to the second truck at the correct position.

Accordingly, a second object of the present invention is to improve the operability of the grain discharging operation by keeping the auger grain discharging set position always correct even when the brake is released. It is to provide a grain discharging device capable of performing the above.

[0015]

The first object of the present invention is attained by the following constitution. That is, in a grain transport device including a grain storage unit and a traveling unit capable of changing the vehicle speed, an auger for turning a grain from a grain storage unit that can freely rotate, and a brake that suppresses the auger from turning. When the vehicle speed is equal to or higher than a predetermined value, the brake is released, and in a grain transport device including a grain storage unit and a traveling unit capable of changing the vehicle speed, a grain discharge from a swivelable grain storage unit. An auger, and a brake for suppressing the auger from turning;
A brake control device for releasing the brake when the vehicle speed is equal to or higher than a predetermined value and operating the brake when traveling on a slope having a predetermined inclination angle or more; In a grain conveying device equipped with a brake that suppresses turning of the vehicle and a brake control device that releases the brake when the vehicle speed exceeds a certain value, a hysteresis is provided between the vehicle speed at which the brake is activated and the vehicle speed at which the brake is released. It is a grain conveying device.

In a grain transfer device such as a combine equipped with such an auger brake, a large load is applied to the brake if the auger turning restraint brake is still operated when the speed of the grain transfer device increases. As a result, braking of the auger that releases the brake is performed when the vehicle speed exceeds a certain value. In the present invention, by providing a configuration in which hysteresis is provided between the vehicle speed at which the brake is released and the vehicle speed at which the brake is activated, the on / off of the brake is repeated when the vehicle speed of the grain transport device is near the constant value, and hunting is performed. Can be prevented.

Further, since the grain conveying device such as a combine operates the auger turning restraining brake even when traveling on an inclined ground having a predetermined inclination angle or more, the brake is released even at the predetermined inclination angle. Hysteresis may be provided between the tilt angle and the tilt angle to be operated.

A second object of the present invention is to provide a grain discharge auger that can be swiveled, and that the auger is swiveled at the grain discharge set position in order to maintain a grain discharge set position from the auger. In the grain transfer device provided with a brake for suppressing the abrasion, if the grain discharge set position of the auger is shifted in a state where the brake is released, the auger is automatically turned to return to the set position. Solved by the discharge device.

According to the above configuration of the present invention, even when the brake is released, the auger grain discharge set position can be always turned back to the correct position, thereby improving the operability in the grain discharge operation. be able to.

[0020]

Embodiments of the present invention will be described with reference to the drawings. The same parts as those of the conventional example in the drawings are denoted by the same reference numerals. 1 is a left side view of the combine of the present invention, FIG. 2 is a front view of the combine, and FIG. 3 is a right side view of the combine. The outline of the function of the combine 1 will be described with reference to FIGS.

The combine 1 is provided with a cockpit 2 on a vehicle body 6 having a crawler 5, and an operator operates and operates the cockpit 2 to cut a culm to be planted in a field. The threshing device 8 for threshing the grain culm after being conveyed by the supply conveyance device, the Glen tank 9 for accommodating the threshed grain, and the grain discharged backward by the bottom spiral provided at the bottom of the Glen tank 9 Combine 1
And an auger 10 to be transported to the outside.
The auger auger 10 is connected to a rear end of the bottom spiral of the Glen tank 9 and transported upward, and a horizontal auger 12 connected to an upper end of the vertical auger 11 and transports grains in a horizontal direction. Etc.

The horizontal auger 12 is connected to the upper end of the vertical auger 11 to extend in the horizontal direction.
And an upper tube 16 which is fitted to the outer periphery on the distal end side and which can expand and contract. A helical shaft (not shown) is fitted in the middle tube 15 and a lateral auger spiral is fitted around the outer periphery of the helical shaft. In the upper tube 16, the rotational force of the helical shaft is transmitted and rotates together with the lateral auger spiral. A plurality of auger slide units (not shown) that extend and contract with the tube 16 are provided. The auger slide unit composed of the horizontal auger spiral and the spiral blades is driven to rotate to perform the grain conveying operation of the horizontal auger 12 regardless of whether the upper tube 16 is zoomed in or out.

The grains in the Glen tank 9 are transported to the vertical auger 11 by a screw conveyor function of a spiral provided on the bottom of the Glen tank 9 (not shown). Further, since the vertical auger 11 and the horizontal auger 12 are provided with a spiral (not shown), the grains are discharged by the screw conveyor function together with the bottom spiral of the Glen tank 9 to the discharge port 19 at the tip of the horizontal auger 12.
And discharge it to trucks.

By operating the discharge operation lever 3 (FIG. 5), the helical grains of the grain in the Glen tank 9 rotate simultaneously by transmitting the power from an engine (not shown), and combine through the discharge port 19 at the tip of the auger. 1 is discharged outside.

FIG. 4 is a rear right side view of the combine 1 according to the embodiment of the present invention, and FIG. 5 is a bird's-eye view of an operation panel 30 provided in front and side of the cockpit 2 of the combine 1. 6 shows a block diagram of the control device of the abrasion auger 10, and FIG. 7 shows the relationship between the vehicle speed and the inclination angle of the combine and the operation / non-operation of the brake.

As shown in FIG. 4, the rotation pinion 11b mounted on the output shaft of the rotation motor 11a drives a rotation gear 11c provided on the outer periphery of the vertical auger 11 which meshes with the rotation pinion 11b, thereby allowing Glen. The swivel of the vertical auger 11 allows the auger outlet 19 at the tip of the horizontal auger 12 to move in the horizontal direction. The turning of the vertical auger 11 can be performed by an auger automatic turning switch.

Although not shown in detail, the swing motor 1
Auger position sensor 21 so as to be driven coaxially with the output shaft 1a or engaged with the turning pinion 11b.
(FIG. 6) is provided to detect the turning angle of the lateral auger 12,
The turning range of the horizontal auger 12 is limited to a safe range by a plurality of limit switches such as a right turning limit switch, a left turning limit switch, and an overhang limit switch (not shown).

The horizontal auger 12 connected to the upper end of the vertical auger 11 can swing up and down around the connecting portion with the vertical auger 11, and the swinging up and down causes the auger discharge port 19 to move up and down. You can go up and down. For this reason, FIG.
As shown in FIG. 3, one end of a telescopic linear actuator 14 having a built-in electric motor drive hydraulic unit (not shown) is pivotally connected to the vertical auger 11, and the other end of the linear actuator 14 on the telescopic spindle side is connected to the horizontal auger 12. Pivoted,
Due to the expansion and contraction of the linear actuator 14, the horizontal auger 1
Swing 2 up and down to change the angle from the horizontal position,
The auger outlet 19 (FIG. 1) is moved up and down.

Although not shown in detail, the linear actuator 14 is provided with a length sensor to detect the elevation angle of the lateral auger 12 as an elevation angle sensor 22 (FIG. 6). Height) A plurality of limit switches such as a limit switch, a safety lower limit height switch, and a lower limit switch are provided.

The operation panel 30 includes a power steering lever 31 for turning the combine 1 left and right and moving the reaper 7 up and down, an HST lever 32 for continuously changing the running speed of the combine 1, and running according to work. An auxiliary shift lever 33 for changing the speed stepwise, a turning mode switching lever 34 for switching the left and right turning of the combine 1 to a normal turning, a gentle turning and a sharp turning, a cutting and threshing lever 35 for operating and stopping the reaper 7 and the threshing device 8. , A throttle lever 36 for adjusting the engine speed, a combination meter 37 for displaying and alerting the operation status of each part of the combine 1, and the like.
A sub-operation panel 30a is provided to collectively arrange operation levers, switches, and the like of the dumping auger 10. That is,
The sub operation panel 30a includes a manual right turning switch or a manual left turning switch (not shown), a dumping clutch operation lever 3, an auger manual operation lever 4, a dumping automatic turning switch 23, a dumping emergency stop operation switch (" Stop when entering)
110, manual extension switch 118, manual shortening switch 1
19, overhang setting dial 140, zoom setting dial 1
41 and the like are arranged.

When the auger manual operation lever 4 is tilted left and right, a manual left turn switch or a manual right turn switch (not shown) on the operation panel 30 is turned on.
Then, the auger left turning relay 123 or the auger right turning relay 124 shown in FIG. 6 is turned on, and the horizontal auger 12 is turned left or right, respectively. Also, by turning on the auger automatic turning switch 23, the auger left turning relay 123 or the auger right turning relay 124 shown in FIG. 6 can be operated.

Further, by tilting the auger manual operation lever 4 back and forth or turning on a manual up switch or a manual down switch (not shown), the auger up solenoid 121 or the auger down solenoid 122 is driven to move the lateral auger 12. It can be moved up and down.

FIG. 6 shows a waste auger 1 according to an embodiment of the present invention.
FIG. 2 is a block diagram showing main components of the control device 100 related to the control of the auger manual operation lever 4, the auger position sensor 21, and the elevation angle sensor via the input interface 102, centering on the CPU 101. 22, an auger automatic turning switch 23, a vehicle speed sensor 24, a left-right direction tilt sensor 25, a front-rear direction tilt sensor 26, a dumping emergency stop operation switch not shown in FIG. 6 but shown in FIG. 5 (stopped when "on") 110, switch 2
3. Manual extension switch 118, manual shortening switch 119
Etc., as well as a rising upper limit switch not shown,
Lowering lower limit switch, right turning limit switch,
Left turning limit switch, overhang limit switch, auger receiving and sitting limit switch, extension limit switch,
Shortening limit switch, safety lower limit height switch, remote operation panel switch, overhang setting dial,
It is input from a zoom setting dial, a zoom length sensor, a dumping clutch lever sensor, and the like.

The CPU 101 outputs the result of arithmetic processing of the input signal to the auger raising solenoid 121 and the auger lowering solenoid 12 via the output interface 103.
2. Auger left turn relay 123, Auger right turn relay 1
24, a brake solenoid 125, a zoom extension relay (not shown), a zoom reduction relay, a thrust clutch relay, and the like.

Next, the operation and control device 1 of the dumping auger 10
The operation according to 00 will be described. First, a manual operation performed by tilting the auger manual operation lever 4 back and forth and left and right will be described. When the auger manual operation lever 4 shown in FIG. (FIG. 6) operates, the horizontal auger 12 rises due to the extension of the linear actuator 14 (FIG. 4), and continues to rise until the upper limit switch (not shown) operates while the manual lift switch is ON. . When the auger manual operation lever 4 is tilted backward and a manual lowering switch (not shown) is turned on, the auger lowering solenoid 122 is operated, and the linear actuator 1 is turned on.
4, the lateral auger 12 is lowered and the lower limit switch (not shown) is operated while the manual lowering switch is ON, and the safety lower limit switch (not shown) is operated in the restricted area. Or, in the auger storage position, the lowering is continued until the limit switch on the auger receiving seat 13 is turned on.

Here, the restricted area means that the horizontal auger 12 is higher than the safety lower limit height so that the horizontal auger 12 does not collide with the operator of the cockpit 2 or the Glen tank 9 when turning the horizontal auger 12. This is an area that allows left and right turning and descending under conditions. The left and right turning described below relates to an operation in a case where the lateral auger 12 is outside the restricted area, or even when the lateral auger 12 is within the restricted area and is at or above the safety lower limit height.

When the auger manual operation lever 4 is tilted to the right and a manual right turning switch (not shown) is turned on, the auger right turning relay 124 is activated, and the vertical auger turning motor 11 is turned on.
a (FIG. 4) rotates the vertical auger 11 to the right, and accordingly, while the manual right turning switch is ON, the horizontal auger 12 continues turning right until the right turning limit switch (not shown) operates. I do. When the auger manual operation lever 4 is tilted to the left and a manual left turning switch (not shown) is turned on, the auger left turning relay 123 is activated, and the rotation of the turning motor 11a causes the vertical auger 11 to turn left. While the turning switch is ON, the horizontal auger 12 continues to turn left until a left turning limit switch (not shown) operates. The turning angle of the horizontal auger 12 is detected by the auger position sensor 21, is displayed on the combination meter 37 (FIG. 5), and is used for turning control in the regulation area and the storage position.

By operating the manual extension switch 118 and the manual reduction switch 119 shown in FIG. 5, the zooming of the horizontal auger 12 can be performed. In addition, the control device 100 shown in FIG.
Can be moved up and down and turned.

As shown in FIG. 5, first, the extension angle (turning angle) of the horizontal auger 12 is set by the extension setting dial 140, and the extension length of the horizontal auger 12 is set by the zoom setting dial 141. After setting, switch 23
Is turned on, the dumping auger 10 automatically moves to the set position according to the command stored in the CPU 101 and the set values of the overhang setting dial 140 and the zoom setting dial 141.

That is, first, the auger raising solenoid 12
1 is actuated to release the horizontal auger 12 from the auger receiver 13 and raise it from the reference line position in FIG. 13 to the solid line position.
Then, the auger left turning relay 123 or the right turning relay 1 is turned up to the turning angle set on the overhang setting dial 140.
24, the turning motor 11a is driven, and the horizontal auger 12 is turned. Based on the output signal of the auger position sensor 21, it is detected that the horizontal auger 12 has reached the set turning angle, and the turning is terminated. During this time, a zoom extension relay (not shown) is operated to drive a zoom extension / retraction motor (not shown) to the extension length set on the zoom setting dial 141, and the horizontal auger 12 is extended. The output of the zoom length sensor (not shown) detects that the horizontal auger 12 has reached the set length, and ends the zoom expansion.

When the switch 23 is turned on, the CPU 101
Automatically moves the dumping auger 10 to the storage position and stores it in accordance with the storage position and the procedure command stored in advance. That is, first, the auger raising solenoid 121 is operated to drive the linear actuator 14, and the lateral auger 12 is raised to the safe lower limit height (solid line in FIG. 13). Next, the auger right turning relay 124 or the left turning relay 123 is operated to drive the turning motor 11 a to the upper side of the auger receiver 13 to turn the horizontal auger 12. Based on the output signal of the auger position sensor 21, it is detected that the lateral auger 12 has reached the position above the auger receiver 13, and the turning is completed. During this time, a zoom reduction relay (not shown) is operated to drive a zoom expansion / contraction motor (not shown) to shorten the horizontal auger 12, and the zoom reduction of the horizontal auger 12 is terminated by an output signal of a reduction switch (not shown). Finally, the linear actuator 14 is shortened by operating the auger lowering solenoid 122, the lateral auger 12 is stored in the auger receiver 13, and the operation of the auger seating limit switch (not shown) is detected to terminate the automatic storage.

After the setting of the position of the auger discharge port 19 of the horizontal auger 12 is completed by manual turning and extension, or automatic extension, the threshing clutch lever 3 (FIG. 5) is manually operated, and when the threshing clutch is engaged, the threshing The operation is started, and the transportation of the grains in the Glen tank 9 is started.

The turning of the vertical auger 11 and the horizontal auger 12
The traveling speed of the combine 1 is limited by the traveling speed of the combine 1, and the traveling speed is detected by a vehicle speed sensor 24 provided on the vehicle body 6. When the traveling speed is high, the turning range and the elevation range are restricted compared to when the traveling speed is low. You.

Although not shown in FIG. 4, the turning motor 11a of the vertical auger 11 has a brake solenoid 12a.
5 is provided, the output shaft of the motor 11a can be braked by a brake operated by the brake solenoid 125, and the grain discharge port 1 of the horizontal auger 12 is provided.
The turning of the vertical auger 11 can be suppressed in order to keep the 9 at the grain discharge setting position above the truck bed.

In order to prevent the auger from trying to rotate more than necessary while traveling on the sloped ground while the vertical auger 11 is turning, a vehicle body left-right direction tilt angle detection sensor 25 provided on the vehicle body 6 and a vehicle front-rear Direction inclination angle detection sensor 2
When 6 detects the predetermined inclination angle, the brake solenoid 125 operates to operate the electromagnetic brake in the turning motor 11a.

The brake mechanism of the vertical auger 11 operates when the combiner 1 is running at a high speed when the auger auger 10 is in the turning mode (when the auger auger 10 is not stored in the auger receiver 13). The vehicle speed sensor 2 shown in FIG. 6 is used to prevent the electromagnetic brake from applying a large load when the dumping auger 10 tries to rotate more than necessary by its own weight.
When the vehicle 4 travels at a predetermined traveling speed or higher, the electromagnetic brake solenoid 125 of the auger built in the electromagnetic motor 11a is turned off so that no extra load is applied to the electromagnetic motor 11a.

In the combine 1 having the mechanism for releasing the auger brake, in the embodiment of the present invention, the auger brake mechanism has a hysteresis between the vehicle speed for releasing the brake and the vehicle speed for operating the brake. The configuration is provided. FIG. 7 is a graph showing the configuration.
The relationship between the vehicle speed and the inclination angle shown in FIGS.

For example, when the combine 1 reaches a predetermined speed a for the first time after traveling, the brake is turned off so that an extra load is not applied to the electromagnetic motor 11a. Then, as shown in FIG. 7A, the vehicle enters the deceleration mode from the maximum vehicle speed, and when the vehicle speed reaches the predetermined vehicle speed b, the electromagnetic brake is turned on again to prevent the waste discharging auger 10 from rotating excessively.

Here, between the vehicle speeds a and b or the inclination angles α and β
If a hysteresis is provided between the two as shown in FIG. 7, the number of brake operations is limited. Therefore, it is possible to prevent a failure caused by using the brake more than the number of times of operation, and to improve the reliability of the brake.

Also, in the auger having a brake mechanism for keeping the above-mentioned grain auger 10 at the grain discharge set position, after the grain is discharged from the grain auger 10 to the first truck, for example, the second grain When moving the combine 1 in order to discharge grains to a truck, the vehicle speed may exceed a certain speed.

At this time, since the combine 1 is running with the brake releasing the vertical auger 11 so that the vertical auger 11 can be freely turned, the grain above the bed of the second truck is discharged to discharge the grain. The combine 1 is operated so that the auger discharge port 19 of the auger auger 10 comes to the discharge setting position. However, at this time, since the brake of the grain discharging auger 10 is in the released state, the vertical auger 11 may rotate and the grain discharging position of the grain discharging auger 10 may deviate from the set value. Therefore, as shown in FIG. 8, the grain discharging auger 1 is automatically placed at the grain discharging set position.
Left and right turning relay 1 of vertical auger 11 so as to turn 0
It is configured to perform control for operating 23 and 124. The auger rotation output amount at this time is determined by the auger position sensor 21.
Is controlled by the detected value.

In this way, even when the brake is released, the auger discharge port 19 is always located at the grain discharge setting position, so that the operability in the grain discharge work can be improved.

In a combine which has a brake mechanism for maintaining the grain discharging auger 10 at the grain discharging set position, and releases the brake when the vehicle speed exceeds a certain value, when the vehicle speed falls below a certain value and the brake is applied, If the detection value of the auger position sensor 21 (FIG. 6) has changed, in other words, if the dumping auger 10 is turning, the detection value does not change (until the turning of the dumping auger 10 stops). ) Alternatively, the brake may be operated without operating the brake and the detection value of the auger position sensor 21 does not change.

This will be described with reference to the drawing. As shown in FIG. 9, even if the vehicle speed detected by the vehicle speed sensor 24 reaches the speed at which the brakes should be operated, the auger position sensor 2
Until the detected value of 1 no longer changes, control is performed so as not to operate the brake. Further, the brake solenoid 125 may be operated so as to be in a semi-braking state while the detection value of the auger position sensor 21 is changing.

By employing such a control mechanism, the brake is not actuated when the auger 10 is turning, so that there is no risk of gear jumps or breakage of the turning device and the brake mechanism.

In a combine having a brake mechanism for keeping the auger 10 in the grain discharge set position, when the grain discharge operation is performed on a slope or the like,
For example, as shown in a schematic plan view of the combine 1 in FIG. 10 (a), the auger protrudes to the rear side of the vehicle body, and as shown in a schematic view from behind the combine 1 in FIG. 10 (b). If the auger base is located on an inclined ground such that the auger base side is located below, the dumping auger 10 tends to move further toward the inclined underground by its own weight. In such a state, not only is there a risk that the grain discharging auger 10 will deviate from the grain discharging set position, but also the vehicle body 6 becomes unstable.

In order to eliminate the above problem, a control device as shown in FIG. 6 can be provided. That is, the vehicle body inclination sensors 25 and 26 are provided to detect the inclination of the vehicle body, and when the kernel auger 10 deviates from the kernel discharge setting position based on the relationship between the kernel discharge position of the kernel auger 10 and the inclination of the vehicle body. Is determined, the brake solenoid 125 is operated so as to apply the brake before the vehicle body 6 tilts. As the vehicle body inclination sensor, a left-right direction inclination sensor 25 and a front-rear direction inclination sensor 26 normally arranged on the combine body 6 are used.

For example, FIG. 11 shows that detecting the inclination of the vehicle body 6 of the combine 1 and determining in advance that the position of the grain discharging auger 10 deviates from the kernel discharge setting position based on the relationship with the vehicle body 6 inclination. The procedure is as follows.

That is, the CPU 101 stores in advance the curve A indicating the relationship between the vehicle speed of the combine 1 and the left-right inclination angle and the curve B indicating the relationship between the front-rear inclination angle at which the dumping auger 10 may deviate from the grain discharge setting position. It is not necessary to apply a brake in the areas below the curves A and B in FIG. 11, however, the vehicle speed and the inclination angle satisfying the relationship between the vehicle speed V1 and the left-right inclination angle Q1 and the vehicle speed V2 and the front-rear inclination angle Q2. When reaching the position on the curves A and B, it is determined that the grain discharging auger 10 deviates from the grain discharging set position, and the brake solenoid 125 is operated. In this way, it is possible to prevent gears such as brakes from being damaged and to prevent the set position of the grain discharging auger 10 from discharging from the set value.

Further, in the combine 1 having the above-mentioned brake mechanism, it is possible to control the current flowing through the solenoid 125 for operating the brake and to control the vehicle speed and the auger position sensor 2.
A control device capable of changing the braking force according to the position of the dumping auger 10 detected in step 1 may be provided.

For example, when the vehicle speed is low, or when the auger 10 is near the storage position, a strong brake is applied so that the auger 10 can be securely fixed. When it is located directly behind 6, there is an effect that the brake is loosened to prevent the gear from being damaged.

FIG. 12 shows this relationship. When the vehicle speed is low, the brake current is increased as shown in the area A, and when the vehicle speed is in the area B above the predetermined value X, the brake current is reduced. However, taking the position of the dumping auger 10 into consideration,
Is located immediately behind the vehicle body 6 and the braking force is increased in a region A where the vehicle speed is equal to or lower than the predetermined value X. However, when the vehicle speed exceeds a predetermined value X, the brake current is weakened based on the vehicle speed in preference to the auger position. When the auger position is near the storage position (region C), the brake current is increased in priority to the vehicle speed.

[Brief description of the drawings]

FIG. 1 is a left side view of a combine according to an embodiment of the present invention.

FIG. 2 is a front view of the combine shown in FIG. 1;

FIG. 3 is a right side view of the combine shown in FIG. 1;

FIG. 4 is a partial right side view of the combine shown in FIG. 1;

5 is a bird's-eye view of an operation panel around a cockpit of the combine shown in FIG. 1;

FIG. 6 is a block diagram of a control circuit of the waste auger according to the embodiment of the present invention.

FIG. 7 is a diagram illustrating a relationship between a vehicle speed and an inclination angle and an operation / non-operation of a brake according to the embodiment of the present invention.

FIG. 8 is a diagram showing the relationship between the vehicle speed and the operation / non-operation of the brake according to the embodiment of the present invention.

FIG. 9 is a diagram illustrating a relationship between a vehicle speed and an operation / non-operation of a brake according to the embodiment of the present invention.

FIG. 10 is a diagram illustrating a brake operation during turning of the dumping auger according to the embodiment of the present invention.

FIG. 11 is a diagram illustrating a relationship between the vehicle speed and the inclination angle of the vehicle body according to the embodiment of the present invention.

FIG. 12 is a diagram illustrating a relationship between a turning position of a dumping auger, a vehicle speed, and a brake operating strength according to the embodiment of the present invention.

FIG. 13 is a side view of the combine.

[Description of Signs] 1 Combine 2 Cockpit 3 Discharge control lever 4 Auger manual control lever 5 Crawler 6 Body 7 Cutting device 8 Threshing device 9 Glen tank 9a Bottom spiral 10 Discharge auger 11 Vertical auger 11a Rotating motor 11b Rotating pinion 11c Rotating Gear 12 Horizontal auger 13 Auger receiver 14 Linear actuator 15 Middle tube 16 Upper tube 17 Spiral 19 Auger outlet 21 Auger position sensor 22 Elevating angle sensor 23 Auger automatic turning switch 24 Vehicle speed sensor 25 Left / right direction inclination sensor 26 Previous direction inclination sensor 30 Operation panel 30a Sub-operation panel 31 Power steering lever 32 HST lever 33 Sub-transmission lever 34 Turning mode switching lever 35 Cutting threshing lever 36 Throttle lever 37 Combination Data 100 control device 101 CPU 102 input interface 103 output interface 110 emergency draining emergency stop switch 118 manual extension switch 119 manual shortening switch 121 auger ascending solenoid 122 auger descending solenoid 123 auger left turning relay 124 auger right turning relay 125 brake solenoid 140 Overhang setting dial 141 Zoom setting dial

Claims (4)

[Claims] 1. A grain transport device comprising a grain storage unit and a traveling unit capable of changing a vehicle speed, comprising: an auger for discharging a grain from a swivelable grain storage unit;
A grain transport device, wherein the brake suppresses the auger from turning, and the brake is released when the vehicle speed exceeds a predetermined value. 2. A grain conveying device having a grain storage unit and a traveling unit capable of changing a vehicle speed, wherein an auger for discharging a grain from a swivelable grain storage unit and suppressing rotation of the auger. And a brake control device for releasing the brake when the vehicle speed becomes equal to or higher than a predetermined value, and for operating the brake when traveling on a slope having a predetermined inclination angle or more. . 3. A grain conveying device comprising a grain storage unit and a traveling unit capable of changing a vehicle speed, wherein an auger for discharging a grain from a freely rotatable grain storage unit and suppressing rotation of the auger. And a brake control device for releasing the brake when the vehicle speed exceeds a predetermined value, and for operating the brake when traveling on a slope having a predetermined inclination angle or more. A grain conveying device, wherein hysteresis is provided between a vehicle speed at which the brake is released and a vehicle speed at which the brake is released, or between a tilt angle at which the brake is activated and a tilt angle at which the brake is released. 4. A grain having an auger for turning a grain which can be swiveled and a brake for suppressing the turning of the auger at the set grain discharging position in order to maintain a set grain discharging position from the auger. In the grain transport device, an auger turning control device is provided in which, when the brake is released, when the grain discharge set position of the auger is shifted, the auger is automatically turned and returned to the set position. Grain transfer equipment.