JPH0331144Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a grain culm lifting device for a multi-row harvester using a horizontally hanging type grain culm lifting body.

In general, the plurality of horizontally hanging grain culm lifting bodies that constitute the plurality of grain culm pulling paths are of course the ones on the outside,
In the case where the non-working side faces each other between adjacent grain culm pulling paths, the non-working side, which is the return stroke of the lifting claw, is covered with a side plate, and a cushioning rubber is attached to the inner surface of the side plate, so that the pulling claw can jump. However, the raising claws scrape up muddy soil and weeds and bring them into the case of the grain culm raiser, which adheres to the cushioning rubber and accumulates, causing damage to the raising claws or abnormalities. They have the disadvantage of being worn out, and the accumulated mud hardens, making removal work extremely difficult.

The present invention can omit the side plate and buffer rubber on the non-active side of the grain culm pulling body between adjacent grain culm pulling paths, thereby reducing costs and preventing the accumulation of mud and weeds as described above. The purpose of the present invention is to provide a grain culm lifting device for a combine harvester that can prevent the pulling pawls from being damaged or worn out. At least 2
2 constituting a row of grain culm pulling paths, with non-working sides facing each other with an interval between the adjacent grain culm lifting paths.
In a combine harvester provided with two grain culm pulling bodies, the grain culm pulling body is placed below the pulling pawl rotating portion on the non-working side of the two grain culm pulling bodies disposed between the adjacent grain culm pulling paths. The device is characterized in that guide grooves from which the triggering claws protrude are provided, the rear portions between these guide grooves are open, and the front portions are covered with a cover.

The embodiment shown in the drawings will be described below. Reference numeral 1 denotes a threshing device mounted on one side of the machine base having a traveling device 2. On the other side of the machine base, in order from the front, there is an operation panel 3 and a driver's seat. , a grain hopper 4, etc. are disposed, and the front part of the threshing device 1 includes a reaping device A, a grain side conveyor 5, and a stock head conveyor 6, and a grain culm conveyor for adjusting handling depth. A device B is provided.

In addition, the reaping device A includes grass cutting bodies 7 provided on both left and right sides and in the center, intermediate grass cutting bodies 8, 8 provided between them, and two pairs facing each other across the left and right grain culm pulling paths a, a. Horizontal type grain culm raising bodies 9a..., 9b...
Although not shown, it is composed of a raking wheel, a stock raking chain, a panicle side raking body, a cutting blade, etc., and the grain culm pulling bodies 9a..., 9b...
A chain 14 having a large number of lifting pawls 13 movably attached thereto is stretched between a driving sprocket 11 pivotally supported at the upper part of the chain case and a floating sprocket 12 pivotally supported at the lower part of the chain case. A guide rail 15 is fixed on the side facing the grain culm lifting path a of 10 for causing the lifting claws 13 to stand up and protrude into the grain culm lifting path a.

Chain cases 10 and 1 of grain culm lifting bodies 9b and 9b located between the adjacent grain culm lifting paths a and a,
As shown in FIGS. 2 and 3, the non-working side is completely opened to form a guide groove C, and the lifting claws 3 of the grain culm pulling bodies 9b, 9b are shown in FIG. As in, the phase is different by 1/2 pitch.

In the combine harvester described above, when each part of the machine body is driven to penetrate into the erect grain culm, the grain culm triggering body 9
a, 9b... raise the four-rowed grain culm by the weeding body 7... and the intermediate weeding body 8..., and then the grain culm that is raked backward is cut by a cutting blade and then sent sideways, The grain culm conveying device B supplies this to the threshing device 1.

When the grain culm pulling bodies 9a, 9b... pull up the grain culm, the intermediate grain culm pulling bodies 9b, 9b's lifting claws 13... stand up and protrude into the grain culm pulling path a during the upward stroke to lift the grain culm. the base of which is the guide rail 15
When it leaves the drive sprocket, it falls downward, and when it goes around the drive sprocket 11, it goes around while slidingly contacting the buffer rubber 16, and when it completes its revolution, it reaches the position shown by the chain line in FIG. As it falls down from the guide groove C into the gap b as shown by the solid line and descends in that position, the mud, weeds, etc. that have been scraped in by the raising claws 13 are discharged from the guide groove C to the outside of the chain cases 10, 10. .

At this time, the front surface between the intermediate grain culm triggering bodies 9b, 9b is covered with a cover 17 as shown in FIG. 3, so it is safe.

As described above, the present invention configures at least two rows of grain culm lifting paths by arranging a plurality of horizontally hanging grain culm lifting bodies in a backward tilted position at the front part of the reaping device,
In a combine harvester in which two grain culm pulling bodies are provided between the adjacent grain culm pulling paths, the non-working sides thereof facing each other with a space therebetween, the two grain culm lifting bodies arranged between the adjacent grain culm pulling paths are provided. Guide grooves from which the lifting claws of the grain culm pulling body project are provided below the pulling claw rotation part on the non-working side of the pulling body, the rear part between these guide grooves is open, and the front part is covered. Even if the lifting claws of the grain culm pulling body scoop up mud and weeds and bring them into the grain culm pulling body, the raising claws will protrude out of the grain culm pulling body from the guide groove on the non-acting side during the return stroke of the descending movement. This prevents mud and weeds from accumulating on the inner surface of the side plate of the grain culm puller.

Therefore, the lifting pawl does not come into sliding contact with deposits such as mud during the return stroke, and damage and wear of the lifting pawl can be prevented.

Further, as mentioned above, since mud and straw waste do not accumulate inside the grain culm pulling body, there is no need to carry out the work of removing deposits which requires a great deal of labor as in the past, resulting in significant labor savings.

Furthermore, since there is no need for the cushioning rubber and the side plate to which it is attached on the side where the trigger claw descends, unlike the conventional ones, costs can be reduced.

Furthermore, two
Since guide grooves from which the lifting claws of the grain culm pulling bodies project are provided below the pulling claw rotating portions on the non-working side of the grain culm pulling bodies, the pulling claws rotate at the upper end of the grain culm pulling bodies. Even though it rotates with centrifugal force while it is moving, weeds attached to the pulling claw,
Straw waste, mud, etc. do not scatter upwards, and since the rear part between the guide grooves is open and the front part is covered with a cover, the mud, etc. can be easily removed from the rear part between the rearwardly inclined grain culm raising bodies. As the device falls, the trigger claw descends in an upright position, but its front surface is covered by a cover, so it is safe, and the structure is simple, so costs can be reduced.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention,
Figure 1 is a perspective view of the combine with the rear part omitted, Figure 2 is a vertical sectional view of the main parts, Figure 3 is a cross sectional view of the same as above,
FIG. 4 is a cross-sectional view of a conventional example. A... Reaping device, C... Guide groove, 9a, 9b...
...Grain culm triggering body, 13...Grain culm triggering claw.

Claims (1)

[Scope of utility model registration request] At least two rows of grain culm lifting paths are formed by arranging a plurality of horizontally hanging grain culm lifting bodies in a backwardly tilted position at the front of the reaping device, and between the adjacent grain culm lifting paths, In a combine harvester provided with two grain culm pulling bodies whose non-working sides face each other with an interval, the pulling claws on the non-working side of the two grain culm pulling bodies arranged between the adjacent grain culm pulling paths are rotated. A grain culm of a combine harvester, characterized in that guide grooves from which the raising claws of the grain culm pulling body protrude are provided below the part, the rear part between these guide grooves is open, and the front part is covered with a cover. Raising device.