JPH067025A - Grain tank-lifting or lowering device of combine - Google Patents

Abstract

PURPOSE:To provide the grain tank-lifting or lowering device of a combine capable of rapidly and simply performing the tiltlifting operation and recover- lowering operation of the grain tank without deteriorating its safety. CONSTITUTION:A combine provided with a grain tank 4 capable of being tilted and lifted or lowered on its upper part as the supporting point and with a grain-discharging cylinder capable of being vertically rotated and revolved is characterized by installing a lifting switch 20 for lifting the grain tank 4 and a lowering switch 21 for recovering and lowering the grain tank 4 only during the switch-on operation, installing a grain discharging lever switch 19 for performing a grain discharging operation from the grain tank, and further installing a control means for operating the grain tank to the upper limit position or the lower limit position by single operation of the lifting switch or lowering switch, when the grain discharging lever switch is switched on.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine tank provided on a side of a threshing section and tiltably movable up and down with a lower part as a fulcrum, for performing a grain discharging operation from the grain tank and a storing operation of the grain tank. The present invention relates to a combine grain tank lifting and lowering operation device that can be simply and quickly performed.

[0002]

2. Description of the Related Art A conventional combine harvester equipped with a Glen tank located on the side of a threshing unit and capable of tilting up and down with a lower part as a fulcrum is used in a Glen tank when discharging grains from the Glen tank or during maintenance and inspection. The structure is such that it tilts up or restores downward with its lower part as a fulcrum, but in order to ensure safety during the lifting and lowering operations of the Glen tank, the Glen tank will be raised or lifted only while the operator presses the up or down switch. It can be lowered.

[0003]

However, as described above, in the structure in which the grain tank is raised or lowered only while the operator is pressing the raising switch or the lowering switch, when the grain is discharged from the grain tank, , The lift switch must be kept pressed by hand until the Glen tank tilts to the upper limit, and when the Glen tank is retracted after the grain is discharged, the lower switch must be pressed until the Glen tank is restored to the lower limit. Since it is necessary to keep pressing, the tilting and raising and restoring and lowering operations of the Glen tank cannot be performed quickly, and the operation is complicated and inconvenient.

Therefore, an object of the present invention is to provide a grain tank lifting / lowering device for a combine of this type, which can quickly and simply perform the tilting and raising / restoring / lowering operations of the grain tank without impairing safety. And

[0005]

The present invention has the following constitution to achieve the above object. That is, the grain tank lifting / lowering operation device for a combine according to the present invention is provided with a grain tank which is located on the side of the threshing part and can be tilted up and down with the lower part as a fulcrum, and the grain discharging means for discharging the grain from the lower part of the grain tank. In a combine provided with a cylinder, equipped with a raising switch for tilting and raising the Glen tank and a lowering switch for restoring lowering only during the ON operation, and equipped with a grain discharging switch for discharging grains from the Glen tank. When the grain discharge switch is on, the control means is provided to operate the grain tank to the ascending limit position or the descending limit position by one operation of the ascending switch or the descending switch.

[0006]

According to the combine grain tank lifting / lowering device of the present invention, when the raising switch is turned on, the Glen tank tilts and rises only during that time, and when the lowering switch is turned on, the Glen tank is restored and lowered only during that time. In addition, when the grain discharge switch that discharges grains from the Glen tank is turned on when discharging grains from the Glen tank or during maintenance and inspection, you only have to press the up switch or the down switch once. The Glen tank can be raised and lowered to the upper limit or the lower limit.

[0007]

Embodiments of the present invention will be described in detail with reference to the accompanying drawings. In FIG. 1 and FIG. 2, 1 is a mowing section, 2 is a driving operation section, 3 is a threshing section, 4 is a grain tank, and 5 is a grain tank. It is a grain discharge cylinder with a transfer spiral inside. The grain tank 4 is composed of a side part tank 4a located on the side of the threshing part 3 and an upper tank 4b which is integrally connected to the side part tank 4a and faces the threshing part 3 above the threshing part 3. ing. 6
Is a grain discharging spiral, and this grain discharging spiral 6 is arranged in the lower portion of the side tank 4a. The grain tank 4 is rotatably supported by the machine body around the grain discharge spiral 6 toward the outside of the machine body, and is accommodated by a hydraulic cylinder 7 along the sides and the upper side of the threshing unit 3 and the upper tank. It is freely tiltable in a grain flow-down posture that is inclined so that the 4b side is at a high position. 4'is a fried shell tube. Reference numeral 5 is a grain discharge cylinder, and this grain discharge cylinder 5 stands upright behind the Glen tank 4 in the traveling direction of the machine body, and is lifted up to a lifting cylinder 5a connected to the discharge spiral 6 and the upper end thereof. It is constituted by a movable cylinder 5b which is continuously provided so as to be capable of undulating.

As shown in detail in FIG. 3, reference numeral 11 is a turning sensing mechanism of the grain discharge cylinder 5. Lifting cylinder 5a of grain discharge cylinder 5
The driven gear 10 is interlocked with the drive gear 14, and the driven gear 10 meshes with the drive gear 14 driven by the auger turning motor 9, so that the grain discharge cylinder 5 is turned by the drive of the auger turning motor 9. It is configured. As shown in FIG. 2, reference numeral 8 denotes a hydraulic cylinder mounted between the lifting cylinder 5a and the movable cylinder 5b of the grain discharge cylinder 5, and the movable cylinder 5b is undulated by the expansion and contraction of the hydraulic cylinder 8. It is configured.

Reference numeral 12 is a storage position detection switch, and 13 is a discharge position detection switch.
Detects that the grain discharge cylinder 5 has swung to the storage position above the fuselage due to the contact of the operating projection 12a on the grain discharge cylinder 5 side, and the discharge position detection switch 13 causes the grain discharge cylinder 5 to move.
When the operation protrusion 13a on the side abuts, the grain discharge cylinder 5
It detects that the vehicle has swung to the discharge position. 1
Reference numeral 5 denotes a turning range detection switch, which detects the turning range of the grain discharge tube 5 within a range in which the operating protrusion 5a on the grain discharge tube 5 side comes into contact.

Further, 16 is an upper limit position detection switch of the grain discharge cylinder 5, 17 is a lower limit position detection switch of the Glen tank 4, and this tank lower limit position detection switch 17 detects the restored lowering state of the Glen tank 4. Is. The upper limit position detection switch 16 and the lower limit position detection switch 17 are attached to the support frame 21 of the Glen tank 4. Reference numeral a is an auger operating lever, 18 is an auger automatic storage switch, and 18a is an auger stop switch. On the other hand, as shown in FIGS. 2 to 4, the operation operation unit 2 includes a grain discharge lever switch 19 for discharging grains from the grain tank 4, a raising switch 20 for raising the grain tank 4, and a lowering switch 21 for lowering the grain tank 4. It is provided. The raising switch 20 and the lowering switch 21 are for raising or lowering the Glen tank 4 only while they are turned on.

FIG. 6 shows another example of the combine. This combine is different from that shown in FIGS. 1 and 2 in the structure of the Glen tank, but the other configurations are the same. In this case, the Glen tank 4 is composed of a central tank 4c fixed to the fuselage, a main tank 4d and a sub tank 4e. The main tank 4d is located on one side of the central tank 4c behind the threshing section 3 and The tank 4e is provided on the other side of the central tank 4c so as to be rotatable in the vertical direction via a fulcrum P, and the main tank 4d is provided so as to be capable of tilting and elevating outwardly about the grain transfer spiral S. There is. Although not shown, a lower limit position detection switch for detecting the restored descending state of the sub tank 4e is provided.

FIG. 7 is a block diagram showing the control means for the grain tank 4 and the grain discharge cylinder 5. 22 is a control unit composed of a microcomputer, and the tank manual raising switch 2 is provided on the input side of the control unit 22.
0 and a tank manual lowering switch 21, an auger upper limit position sensing switch 16 for sensing the up-down direction position upper limit position of the grain discharge cylinder 5, an auger storage position sensing switch 12, an auger discharge position sensing switch 13 and an auger turning range sensing switch 15. The lower limit position detection switch 17 and the grain discharge lever switch 19 of the Glen tank 4 are also connected. Further, an auger raising valve 23 and an auger lowering valve 24 of a hydraulic cylinder 8 for undulating the grain discharge cylinder 5 are connected to the output side of the control unit 22, and further the tilting up and restoring lowering of the Glen tank 4 are performed. Tank lift valve 2 of hydraulic cylinder 7
5 and the tank lowering valve 26 are connected. An auger turning motor 9 for turning the grain discharge cylinder 5 is also connected to the output side of the control unit 22. The control unit 2
2 operates the tank raising valve 25 so as to tilt and raise the Glen tank 4 only while turning on the raising switch 20 of the Glen tank 4, and turns on the Glen tank 4 only while turning on the lowering switch 21. The tank lowering valve 26 is operated so as to restore and lower, but when the grain discharge lever switch 19 is turned on, the raising switch 2
The circuit configuration is such that the tank raising valve 25 or the tank lowering valve 26 is operated so that the Glen tank 4 is raised to the tilting rising limit or lowered to the restoring lowering limit by pressing the 0 or lowering switch 21 once. . The control unit 22 is provided with a timer circuit that sets a certain time after the raising switch 20 of the Glen tank 4 is turned on and raises it when the set time elapses.

Next, the operation of the control means will be described with reference to the flow charts shown in FIGS. As shown in FIG. 8, in the elevation control of the Glen tank 4,
When the turning range detection switch 15 of the grain discharge cylinder 5 is on and the grain discharge lever switch 19 is on, the up / down NO. The subroutine 1 is reached, and the processing shown in FIG. 10 is performed. Further, when the grain discharging lever switch 19 is OFF, the up / down NO. The subroutine 2 is reached and the processing shown in FIG. 9 is performed. The turning range detection switch 15 is OF
If F, it is returned.

In the operation shown in FIG. 10, if the raising switch 20 of the Glen tank 4 is turned on only once and the time is set in the timer, the tank raising valve 25 operates during the set time, and the Glen tank 4 tilts and rises to the ascent limit, and when the time set by the timer has elapsed, tilting and raising of the Glen tank 4 stops. Further, when the raising switch 20 is off and the lowering switch 21 is turned on only once, the Glen tank 4 is restored and lowered to the lowering limit position where the lower limit position detecting switch 17 operates. As described above, when the grain discharge lever switch 19 is turned on, the Glen tank 4 is tilted up or restored down to the ascending limit or the descending limit only by turning on the ascending switch 20 or the descending switch 21 only once. You can Therefore, the work of discharging the grain can be performed quickly and easily, and the grain tank 4 can be easily stored after the grain is discharged.

On the other hand, in the operation shown in FIG. 9, the Glen tank 4 rises only while the raising switch 20 of the Glen tank 4 is turned on, and only when the lowering switch 21 is turned on. 4 descends. Therefore, in a normal case except when the grain is discharged, there is no possibility that the Glen tank 4 is inadvertently moved up and down, and operational safety is ensured.

[0016]

According to the present invention, when the discharge switch for discharging the grain from the grain tank is on, it is only necessary to operate the raising switch for raising the grain tank or the lowering switch for lowering the grain tank once. Since the tank can be operated to the upper limit or the lower limit, the operation of discharging the grain from the grain tank can be performed simply and quickly, and the storage operation of the grain tank can be performed simply and quickly after the grain is discharged.

[Brief description of drawings]

FIG. 1 is a rear view of a combine harvester according to the present invention.

FIG. 2 is a plan view of the combine according to the present invention.

FIG. 3 is a perspective view of a driving operation unit.

FIG. 4 is an enlarged plan view of a tank raising switch and a tank lowering switch operation unit.

FIG. 5 is an enlarged cross-sectional view showing a drive portion of a grain discharge cylinder.

FIG. 6 is a front view of a combine according to another embodiment of the present invention.

FIG. 7 is a block diagram showing a main part of a control unit.

FIG. 8 is a flow chart showing the operation of the Glen tank lift operation device according to the present invention.

FIG. 9 is a flowchart showing the operation of the Glen tank lift operation device according to the present invention.

FIG. 10 is a flowchart showing the operation of the Glen tank lifting / lowering operation device according to the present invention.

[Explanation of symbols]

 4 Glen tank 5 Grain discharging cylinder 6 Grain discharging spiral 17 Tank lower limit position detection switch 19 Grain discharging lever switch 20 Manual tank raising switch 21 Manual tank lowering switch 25 Tank raising valve 26 Tank lowering valve

Claims (1)

[Claims] 1. A combine tank provided on the side of a threshing unit and provided with a grain tank that can be tilted up and down with a lower portion as a fulcrum, and a grain discharge cylinder for discharging grains from the lower portion of the grain tank is turned on. It is equipped with a raising switch that tilts and raises the Glen tank and a lowering switch that restores and lowers it only during the period, and a grain discharging switch that discharges the grains from the Glen tank.When this grain discharging switch is on, it goes up. A combine grain tank lifting and lowering operation device comprising a control means for operating the Glen tank to an ascending limit position or a descending limit position by one operation of a switch or a descending switch.