JPH0212528B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method for separating the reaping parts of a combine harvester.

(Prior art) In conventional combines, the upper part of the harvesting part of the combine is connected to the machine body by an upper coupling fitting, and the part of the harvesting part of the combine below the upper coupling fitting is coupled to the machine body by a hydraulic system. ,
The hydraulic system is expanded and contracted to adjust the reaping section according to the dryness and humidity of the field or the growth condition of the rice, and when driving on the road or over ridges, the hydraulic system is fully extended and raised to the highest position. That's what I was doing.

Further, Japanese Patent Application Laid-Open No. 52-145131 describes a device which is equipped with the above device and whose lifting portion is movable back and forth using a separate hydraulic device.

(Problems to be Solved by the Invention) The known combine harvester cannot harvest the four corners of a field. Therefore, the four corners (and similar areas) are harvested by hand using an old-fashioned sickle. Grain culms harvested by hand cannot be supplied to the threshing section of a combine harvester, so they are threshed using a separately prepared threshing machine. That is, the threshing section of known combines is not configured to supply hand-cut grain culms. The same applies to the one described in JP-A-52-145131.

Therefore, in the present invention, the reaping section is formed so as to be shifted to the front side, and a gap is formed in the threshing section of a known combine harvester through which hand-cut grain culm can be supplied. It is done in a state where you are present and can be done easily.

(Means for Solving the Problem) Therefore, the present invention provides the following features:
is lowered to bring the cutting body 15 into contact with the ground, and the cutting part 11
By unlocking the upper part and the machine body 1 and extending the hydraulic system 31 between the reaping part 11 and the machine body 1,
The reaping section 11 is moved to the threshing section 5 while the weeding section 15 is in contact with the ground.
This is a method for separating the reaping part of the combine harvester so that it can be moved away from the harvester.

(Example) To explain the apparatus that can implement the method of the present invention, 1 is a machine body, 2 is a running section, 3 is a running crawler,
4 is a running frame, 5 is a threshing section, and 11 is a reaping section. The threshing section 5 includes a handling chamber 6 having a handling barrel for threshing.
and a sorting room 7 that houses a sorting device.
On the side of the handling room 6, there is an endless grain culm supply chain 8.
and a pinning rod 10 which is landed on the grain culm supply chain 8 side by a compression coil spring 9. 1
Reference numeral 2 denotes a reaping frame of the reaping section 11. A reaping gear box 13 is provided at the lower end of the reaping frame 12 so as to form a T-shape with the reaping frame 12, and a plurality of grass divisions extend forward from the reaping gear box 13 along the ground. The rod 14 is attached.

At the tip of the weeding rod 14, a weeding body 15 is provided to scrape out the grain culms in the field, and behind it, a plurality of lifting devices 16 are provided to vertically raise the weeded grain culms. It is provided with the upper end tilted backwards.

A clipper-shaped cutting blade 17 for cutting the root part of the erected grain culm is supported close to the ground at the rear end of the weeding rod 14. In addition, this cutting blade 17
An ear conveying device 18 and a root conveying device 19 for conveying the harvested grain culm to the threshing section 5 are installed above the grain culm. Reference numeral 20 denotes side covers provided on both left and right sides of the reaping section 11.

The reaping section 11 described above is constituted by an upper coupling fitting 21 and a lower support device 22.

The upper coupling fitting 21 is provided between a shaft stopper 23 provided on the machine body 1 side and a shaft stopper 24 at the upper end of the reaping frame 12.

An opening/closing link fitting 25 and a locking fitting 26 are fixed to the shaft fitting 24 . Opening/closing link fittings 25
The lever 27 and 28 are connected like a hinge, and the tip of the lever 28 is fixed to the shaft stopper 24, and the tip of the lever 27 is fixed to the shaft stopper 23. When the opening/closing link metal fitting 25 consisting of two levers 27 and 28 is opened, it extends and can be locked by the locking metal fitting 26.

That is, as a result, the terminal ends of the conveying devices 18 and 19 of the reaping section 11 can be brought close to or separated from the supply section of the threshing section 5 on the machine body 1 side, or can be locked in position.

Further, the lower support device 22 has both ends rotatably pivoted to a support arm 29 projecting forward from the lower end of the threshing section 5 and to the tip thereof and the lower end of the reaping frame 12. It is provided with a connecting lever 30 that connects these, and a telescopic hydraulic device 31 is installed between the connecting lever 30 and the traveling frame 4.

By operating this hydraulic system 31 from the driver's seat, the reaping section 11 swings around the pivot at the tip of the support arm 29, but as shown in FIG. When the upper coupling fitting 21 is in the locked state, the reaping part 11 can be vertically adjusted around the tip of the support arm 29 and the shaft stopper of the shaft stopper 23.

As shown in FIG. 2, the reaping part 11 and the fuselage 1 side are connected by an open/close link fitting 25, which allows the upper connecting fitting 2 to be expanded and contracted.
1, when the hydraulic device 31 is extended, the tip of the weeding body 15 remains in contact with the ground,
The opening/closing link fitting 25 is extended, and the transport device 18,1
By being separated from the threshing section 5, the upper end of the grain culm 9 can supply the grain culm harvested by hand to the threshing section.

Further, on the side of the reaping section 11, there is an operation box 3 equipped with various levers for operating each part of the machine.
2 is provided.

(Function) Next, the function of the apparatus capable of carrying out the method of the present invention will be described.

Place the upper coupling fitting 21 in the state shown in FIG. 1, that is,
When both ends of the locking fitting 26 are fixed between the shaft stopper 23 and the shaft stopper 24, and the upper joint fitting 21 enters the field in a non-extendable state, the hydraulic system 31 is activated depending on the condition of the grain culm. When you expand and contract the reaping part 1
The mowing height position is adjusted by moving up and down centering around the shaft attachment part of the shaft stopper 23 and the support arm 29.

When moving forward after adjusting the cutting height position, the grass is divided by the weed splitting body 15, pulled up by the pulling device 16, harvested by the cutting blade 17, transported by the tip conveying device 18 and the root conveying device 19, and then connected to the grain culm supply chain 8. The grains are fed to the handover handling room 6 with a ram 10 and threshed.

When the machine body 1 reaps the crops, the four corners of the field cannot be harvested, resulting in uncut areas, which are harvested by hand. When the manual reaping is finished, release the lock fitting 26 from the shaft stopper 23, and
The levers 27 and 28 of the opening/closing link fitting 25 are in the extended state as shown in FIG. 2.

When performing manual handling work as described above, first stop the machine in a field, etc., and then
When the hydraulic device 31 is contracted until the position 7 is at the lowest position, the weeding body 15 comes into contact with the ground. In this state, the lock fitting 26 is removed from the shaft stopper 23 as shown in FIG. After this, when the hydraulic device 31 is extended, the reaping section 11 is moved to the first position with the weeding body 15 in contact with the ground.
It slides from the figure to the position shown in FIG. 2, the opening/closing link fitting 25 straightens, the shaft stopper 24 moves away from the threshing section 5, and the end portions of the ear conveying device 18 and the root conveying device 19 and the threshing section 5 and the grain culm supply chain 8 are separated from each other.

Therefore, in the feeding section of the grain culm feeding chain 8,
Hand-cut grain culms can be supplied.

(Effect) With the above-mentioned known combine harvester, the four corners of the field cannot be harvested. Therefore, the four corners (and similar areas) are harvested by hand using an old-fashioned sickle. Grain culms harvested by hand cannot be supplied to the threshing section of a combine harvester, so they are threshed using a separately prepared threshing machine. That is, the threshing section of known combines is not configured to supply hand-cut grain culms. The same applies to the one described in JP-A-52-145131.

However, in the present invention, after stopping the machine body 1, the reaping section 11 is lowered to bring the tip of the weeding body 15 into contact with the ground, and in this state, the lock fitting 26 is disengaged and the hydraulic device 31 is extended. Reference numeral 11 indicates that the cutting body 15 moves away from the threshing section 5 while remaining in contact with the ground, and then moves to the tip conveying device 18 and the root conveying device 19.
This is a method for separating the reaping section of the combine that separates the terminal end of the grain from the grain supply chain 8 of the threshing section 5. Therefore, when performing manual handling work, after stopping the machine in a field, etc. When the hydraulic device 31 is contracted until the mowing blade 17 is at the lowest position, the weeding body 1
5 is in contact with the ground, the lock fitting 26 can be removed from the shaft stopper 23 without any danger, and the reaping section 11 can be moved forward by extending the hydraulic device 31 without threshing while the weeding body 15 remains in contact with the ground. Since it is moved away from part 5, it can be made lighter.

[Brief explanation of drawings]

Figure 1 shows the tip conveyor 18 and the root conveyor 19.
FIG. 2 is a side view of a combine harvester in which the terminal end of the grain feed chain 8 of the threshing section 5 and the grain supply chain 8 of the threshing section 5 are close together, and FIG. Explanation of symbols 1...Airframe, 2...Traveling section, 3...
... Traveling crawler, 4 ... Traveling frame, 5 ... Threshing section, 6 ... Handling room, 7 ... Sorting room, 8 ... Grain culm supply chain, 9 ... Compression coil spring, 10 ... Pinch rod, 11... Reaping section, 12... Reaping frame,
13... Reaping gear box, 14... Grass dividing rod, 1
5... Grass splitting body, 16... Pulling device, 17... Cutting blade, 18... Ear tip conveying device, 19... Root conveying device, 20... Side cover, 21... Upper coupling fitting, 22... Lower support Device, 23...shaft stopper,
24...Axle stopper fitting, 25...Opening/closing link fitting, 2
6... Lock fitting, 27... Lever, 28... Lever, 29... Support arm, 30... Connection lever, 31... Hydraulic device, 32... Operation box.

Claims (1)

[Claims] 1. While the machine body 1 is stopped, the reaping unit 11 is lowered to bring the cutting body 15 into contact with the ground, the upper part of the reaping unit 11 and the machine body 1 are unlocked, and the hydraulic device 31 between the reaping unit 11 and the machine body 1 is extended. A method for separating a reaping part of a combine harvester in which a reaping part 11 can be moved away from a threshing part 5 while a weeding body 15 remains in contact with the ground.