JPS602741Y2 - Combine grain conveyor - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a culm conveying device that conveys culm cut by a cutting blade toward a threshing machine.

Harvesting with a combine harvester involves raking the culms in the field with a cutting body, raising the culms vertically using a lifting device, and cutting the root part with a cutting blade. The root portion and the tip portion are held and conveyed by a root conveying device and a tip conveying device, respectively.

During this transportation, the culm is changed from a vertical state to a horizontal state, and then transferred to a threshing machine and threshed.

Generally, the main bodies of both conveyance devices are supported by a support member provided on the vehicle chassis, and furthermore, a part of the root conveyance device main body and a part of both conveyance devices are inverted with both leg ends fixed to these. They are connected by a U-shaped culm.

Then, the culm is conveyed with the tip protruding upward from the tip conveying device, and this protruding tip portion is conveyed while passing between the legs of the U rod rod.

However, in conventional shell culm conveying devices, when the tip of the shell culm passes between the legs of the U-pole rod, it often moves while sliding against the legs. This had the disadvantage that not only was it blocked, but the U-pole rod protruded to the side of the machine and got in the way.

The present invention was developed in view of the above points, and the U-pole rod, which has an inverted U-shape and supports the endless band tensioning frame and the clamping rod holder of the root conveying device at both leg ends, is attached to the upper end. By slanting it in two directions so that it approaches the center side of the chassis and the side of the threshing machine as it goes towards the bottom, the sliding resistance when the tip of the culm touches the leg of the U-pole rod can be minimized, and the sliding resistance can be reduced as much as possible. To provide a combine harvester culm conveying device that allows the husks to enter and pass through a U-pole rod from the neck to the tip of the ear, thereby preventing grain shedding, etc., and facilitating smooth conveyance.

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

Figures 1 to 4 show an embodiment of the grain conveying device according to the present invention, in which Figure 1 is a front view of a combine that implements this, Figure 2 is a side view, and Figure 3 is a plan view. , 4th
The figure is a side view of the vicinity of the U-pole rod.

In the figure, at the front end of the combine, a plurality of weeding bodies 1 are supported by a weeding rod and are arranged to scrape through the husks in the field as the combine advances, and behind them are the fallen husks. A pair of lifting devices 2 for erecting the culm are erected at an angle.

3 is a clipper-like cutting blade that is supported at the center of the weeding rod and extends in the width direction of the machine and cuts the root part of the erected culm; 4 is a rotary raking member that scrapes the cut culm into the conveyance path; 5 is a raking belt that rakes the base of the erected culm to the cutting position.

Above the rotary scraping body 4, a root conveying device, generally designated by numeral 6, and a tip conveying device, generally designated by 7, are arranged one above the other.

The main body of the root conveying device 6 includes a frame 6b whose upper end is supported by a support rod 6a protruding from the vehicle chassis and which extends obliquely downward, and a number of links 8a formed in a mountain shape, connected in an endless manner. The main body of the conveying device 6 is connected to the frame 6b by a U rod rod 15, which will be described later. A clamping rod holder 9 and a U-shaped cross section whose legs are supported by the holder 9 and are biased toward the endless band 8 side by a compression coil spring 10 in the holder 9 and constructed along the running end of the endless band 8. A clamping rod 11 in the shape of a shape is attached.

Further, the main body of the ear tip conveying device 7 includes an endless band case 12 whose upper end is supported by a support rod 7a protruding from the frame 6b and which extends diagonally downward, and a large number of lugs 13 that are arranged in parallel at regular intervals and can be raised or lowered. It is formed with an endless band (not shown) stretched within the endless band case 12,
A tip guide 14 is attached to the main body of the conveying device 7. The tip guide 14 is supported by a U-pole rod 15, which will be described later, and is supported along the trajectory of the tip of the lug 13.

The symbol 15 is a U-shaped rod, depending on the pipe material, and is arranged with the curved part 15a positioned on the upper side so as to form an inverted U-shape. The leg end of one leg 15b is fixed to the endless band tensioning frame 6b of the main body of the base conveyance device 6, and the clamping rod holder 9 of the base conveyance device 6 is fixed to the leg end of the other leg 15c. Supported.

Further, the legs of the tip guide 14 are fixed to the pincer holder 9 supported by the legs 15c.

The root portion of the culm 25 shown in FIG. 4 is held between the endless band 8 and the clamping rod 11 of the root conveying device 6, and the tip portion is held by the lugs 13 and the tip guide 14 of the tip conveying device 7. During the conveyance, the tip portion passes between the legs 15b and 15c of the U-pole rod 15.

The U-pole rod 15 through which the tip passes in this manner is inclined along the culm direction of the culm 25 so that as it goes toward the upper end, it becomes closer to the center of the chassis as indicated by the chain line in the figure. The U-pole rod 15 is inclined so as to be closer to the threshing machine 16 toward the upper end.

Reference numeral 17 denotes a lifting pipe that pivotally supports the drive shaft of the lifting device 2, and is mounted on the right side as viewed in the machine advancing direction, that is, on the opposite side of the shell culm conveyance path, and the rotation of the drive shaft is The signal is first transmitted to the right-hand pulling device 2, and then transmitted to the left-hand pulling device 2 via the transmission shaft inside the transmission case 18.

19 is a feed chain that is stretched along the handling chamber 20 of the threshing machine 16 and conveys the shell culm for threshing by holding it between the clamping rods 21; 22 is a feed chain that is suspended in the handling chamber 20 for threshing; The handling cylinder 23 is a straw chain for conveying the threshed husks, that is, the waste straw.

Moreover, what is indicated by the reference numeral 24 is a pair of left and right running rollers as a traveling device supported by the chassis on which the threshing machine 16 is mounted, and the left and right running rollers 24 are located at the center of the chassis.
It shows the center of

The operation of the combine constructed as described above will be explained.

As the machine advances, the culms in the field that have been raked by the weeding body 1 are lifted up and conveyed by the raising device 2, and the root portion is raked and conveyed to the reaping position by the belt 5. .

The root portion of the culm 25 is cut off by the cutting blade 3, and at the same time, the tip portion is lifted up and released from the device 2. The culm 25 is scraped into the conveying path by the rotary scraper 4 and captured by the two conveying devices 6 and 7.

As shown in FIG. 4, the captured culm 25 is held at its base by the endless band 8 and the clamping rod 11 of the root conveying device 6, and by the lug 13 and the tip guide 14 of the tip conveying device 7. The tip is held and transported.

The tip of this shell culm 25 passes between the legs 15b and 15c of the U-pole rod 15 during transportation, but this is because the U-pole rod 15 is tilted toward the center of the vehicle body along the culm direction of the shell culm 25. , are conveyed without making deep sliding contact with the legs 15b as in the conventional case.

Furthermore, by tilting the U-pole rod 15 toward the threshing machine 16, the culm 25 that passes through it first enters the U-pole rod 15 with the head near the lug 13 first, and then enters the U-pole rod 15 sequentially. Since the tip passes through the U-pole rod 15 with a delay, it is easy to pass through the culm 25.

The husks 25 that have passed through the U-pole rod 15 in this manner are transported with the root portion taken over by the feed chain 19, and the tip portion is supplied to the handling chamber 20 where it is threshed.

In addition, in this embodiment, the transmission device for the lifting device 2 is located on the opposite side of the conveying devices 6 and 7, so the space in the culm conveying section is widened, and the conveying section is prevented from being clogged with weeds, etc. In addition, it becomes easier to mow along the ridge, and the state of conveyance of the culm can be easily observed from the driver's seat, making it easier to adjust the handling depth.

As is clear from the above explanation, according to the present invention, in the culm conveying device of a combine harvester, the endless band tensioning frame 6b of the root conveying device 6 and the pincer holder 9 are arranged in an inverted U shape. By providing the U-pole rod 15 supported by both leg ends so as to be inclined in two directions so as to approach the center side of the chassis and the thresher 16 toward the upper end, the conveying shell culm 25 changes its posture to a horizontal state. Even if the grain passes through the U-pole rod 15 while tilting, there is little sliding contact with one leg 15b of the U-pole rod 15, and the U-pole rod 15 enters the U-pole rod 15 sequentially from the neck to the tip, which prevents grain from shedding. The loss of grain is greatly reduced due to the elimination of ear breakage, etc., and the conveyance of the husk culm 25 is carried out smoothly, improving the conveyance performance.

Further, since the U-pole rod 15 does not protrude outward from the machine base, the machine base can be easily moved and safety is improved.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the culm conveying device for a combine harvester according to the present invention, FIG. 1 is a front view of the combine harvester in which this is implemented, FIG. 2 is a side view, and FIG. 3 is the same. The plan view and FIG. 4 are side views of the vicinity of the U-shaped rod. 6... Root conveyance device, 6a, 7a...
Supporting rod, 6b... Frame, 7... Ear tip conveying device, 8... Endless band, 9... Holder for pinching rod, 11... ...pinching rod, 14...
...Tip guide, 15...U rod, 15b, 1
5c...Legs, 16...Thresher, 24.
- Curving roller, 25... Culm.

Claims (1)

[Scope of utility model registration request] In a combine harvester in which a threshing machine is mounted on a car body having a traveling device, and the main body of a root and tip conveying device disposed in front of the threshing machine is supported by a supporting member on the car body side, a U-pole formed in a U-shape is used. With the rod in an inverted U-shape, one leg end is fixed to the endless belt tensioning frame of the base conveying device main body,
The other leg end supports the pinching rod holder of the root conveying device and the tip guide of the tip conveying device, and the conveying shell culm is positioned closer to the center of the chassis as the U rod rod moves toward the upper end. A husk conveying device for a combine harvester, characterized in that the husk conveying device is inclined along the culm direction of the combine harvester, and is inclined so as to approach the threshing machine toward the upper end.