JPS588023Y2 - Grain culm feeding device for threshing machine - Google Patents

Description

[Detailed description of the invention] A step part with a raised front side is provided in the middle part of the conventional artificial receiving plate that projects forward from the bottom of the supply port, and a cover that projects forward from the top of the supply port. It is already known from Japanese Utility Model Application Publication No. 52-87577 that the lower edge of a scattering prevention plate suspended from a plate is allowed to hang down from a low rear portion of the stepped portion.

However, in the above-mentioned known method, the supplied husks fall from the stepped section to the handling room side, so grains and straw waste accumulates inside the stepped section, and grains, etc., fall and scatter on the feed chain side in particular. In addition, if the front part of the artificial catch plate is formed high, the culm cut from the lower front part of the combine harvester must be lifted further upwards, resulting in a higher machine height and larger size. In addition, there were various drawbacks such as the inability to smoothly transfer the culm to the feed chain.

The purpose of the present invention is to improve the above-mentioned drawbacks of the threshing machine, and it includes a series of substantially flat inlet receiving plates 14 protruding forward from the lower edge of the feed port. ,
A lip IT having an arcuate cross-section bulging out to the upper surface at a distance from the lower edge of the supply port 13 of the inlet receiving plate 14 is provided, and the supply port 1
A scattering prevention plate 18 whose lower edge engages with the supply port 13 side of the lip 1T is suspended from a cover plate 15 projecting forward from the top of the lip 1T.

The present invention will be explained in more detail with reference to the embodiment shown in the drawings below. Reference numeral 1 is a threshing machine mounted on the base of a combine harvester. 5
A swinging sorter T is installed in the sorting air passage extending from the dust outlet 6 to the rear, and a feed chain 8 and a gripping rail 9 are arranged in parallel along the handling opening 3a. An inlet of a cylinder-shaped cutter 12 provided on the top plate 11 of the dust sorting chamber faces toward the feed chain 10.

In addition, an inlet receiving plate 14 is placed forward from the lower edge of the supply port 13.
is provided protrudingly, and a cover plate 15 is provided protrudingly from the top.

The portion of the entrance receiving plate 14 surrounded by the curve a is shaped like a gutter with an arcuate cross section, and the front part thereof is formed with a downward slope. Mouth 1
3 and a portion corresponding to the front end of the cover plate 15 are provided with upwardly bulging lips 16 and 17 each having an arcuate cross section. The lower edge of the grain scattering prevention plate 18 having such flexibility faces the rear of the front lip 11.

The handling depth of the culm cut by the front reaping device is adjusted by the handling depth adjustment body 19, and the stock base is transferred to the starting end of the feed chain 8 and the gripping rail 9. The cob side is guided on the inlet receiving plate 14 and inserted into the handling chamber 3 from the supply port 13, and is threshed by the handling cylinder 2.The straw discharged from the culm opening 10 is shredded by the cutter 12. and then sprayed on the field.

In the vicinity of the supply port 13, some of the grains that are about to scatter forward from the handling chamber 3 collide with the lip 16 and the conical plate 3b along the lower edge of the supply port 13 and fall into the handling chamber 3. All other scattered grains are stopped by the scattering prevention plate 18.

At this time, the lower edge of the grain scattering prevention plate 18 faces so as to engage with the inside of the front rib 1T, so even if the supply of husk culms is temporarily interrupted, the grain scattering prevention plate 18 prevents the grain from being removed. It completely prevents external scattering, and when the shell culm is continuously supplied, scattering is prevented by the shell culm.

Immediately after the shell culm passes through the grain scattering prevention plate 18, the grain scattering prevention plate 18 tends to jump forward due to its restoring force, but the ribs 11 prevent this.

Since the flat ribs 1T are arcuate, there is almost no resistance to the shell culm, and the shell culm slides over the rib 1T while sliding over the rib 17. All the grains and straw debris that are about to accumulate on the rear side are swept back into the handling room 3.

Furthermore, the ribs 16, 17 reinforce and strengthen the artificial receiver plate 14.

As described above, the present invention includes a substantially series of flat plate-shaped inlet receiving plates 14 projecting forward from the lower edge of the supply port, and extending outward from the lower edge of the supply port 13 of the inlet receiving plate 14. Ribs 17 having an arcuate cross section bulging upward at intervals are provided, and the lower edge engages the cover plate 15 protruding forward from the upper part of the supply port 13 on the supply port 13 side of the rib 1γ. Shatter prevention plate 1
8 is suspended, so that the grain scattering prevention plate can prevent the grains from scattering outside the machine from the supply port, and the rib 11 can prevent the grain scattering prevention plate 18 from swinging forward and open it. It is possible to always accurately scatter grains outside the machine without any problems.

In addition, when feeding the shell culm, the resistance of the lip 1T against the shell culm is extremely small, and the shell culm that is supplied with the grains and straw waste that is to be deposited inside the rib 11 sweeps along the upper surface of the rib in a sliding manner. It is possible to prevent grains from scattering toward the feed chain side by circulating the grains back into the handling chamber 3, and to prevent straw waste and dust from blowing out.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a plan view, Fig. 2 is a side view, Fig. 3 is a perspective view of main parts, and Fig. 4 is a plan view.
The figure is a sectional view of the same as above. 13... Supply port, 14... Artificial receiving plate, 15... Cover plate, 16,1γ... Rib, 18... Grain scattering prevention plate.

Claims (2)

[Scope of utility model registration request] (1) A series of substantially flat inlet receiving plates 14 are provided protruding forward from the lower edge of the supply port, and the inlet receiving plates 14 are spaced outward from the lower edge of the supply port 13 of the artificial receiving plate 14. A cover plate 15 is provided with a lip 17 having an arc-shaped cross section that bulges out to the upper surface, and a lower end edge of the lip 1T is provided on a cover plate 15 that protrudes forward from the upper part of the supply port 13.
A culm supply device for a threshing machine, characterized in that a scattering prevention plate 18 that engages with a supply port 13 side is suspended. (2) Utility model registration claim No. 1 in which a lip is provided at the base of the inlet receiving plate along the lower edge of the supply port and bulges upward.
) A husk feeding device for a threshing machine as described in item 2.