JPH0559683B2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention provides a processing cylinder between a swinging sorting device and a No. 2 conveyor in order to improve the sorting performance of a threshing device mounted on a combine harvester. It's about structure.

(b) Prior art The technology of arranging an orthogonal processing cylinder perpendicular to the handling cylinder behind the handling cylinder of a combine harvester is disclosed in Japanese Patent Application Laid-open No. 1983-
There were publications such as Publication No. 17914 and Publication No. 23668 of 1983.

Furthermore, the technique of arranging a suction fan at one end of the left and right ends of a suction duct is known as the technique described in Japanese Utility Model Application Publication No. 58-52936.

These orthogonal processing cylinders in the prior art are no different from the conventional parallel processing cylinders in terms of sorting performance, simply because the parallel processing cylinder, which was conventionally arranged parallel to the processing cylinder, is placed at the rear end of the processing cylinder. It was.

(c) Problems to be Solved by the Invention In contrast, the orthogonal processing cylinder of the present invention does not reprocess the processed material that has fallen onto the No. 2 conveyor and return it to the swing sorting device, as in the conventional case. It is placed between the swing sorting device and the No. 2 conveyor, and the straw waste and chaff that have fallen from the sieve line at the end of the No. 2 conveyor and are discharged outside the machine from the No. 3 port are processed again in the processing cylinder. 2
They try to make it fall onto the number conveyor.

In order to exhaust only the dust generated by installing this orthogonal processing cylinder to the outside of the machine using a suction fan,
The suction duct and suction fan are arranged above the orthogonal processing cylinder.

(d) Means for solving the problem In order to achieve the above object, the present invention is constructed as follows.

In the threshing section, in which an orthogonal processing cylinder 3 is provided below the terminal end of the oscillating sorting device 7, the orthogonal processing cylinder 3 is installed at approximately the same height as the terminal end of the oscillating sorting device 7. The upper rotation locus of the tooth 3a is positioned so that the handling tooth 3a is configured to rotate backward from the terminal position of the swing sorting device 7, and one of the right and left ends of the processing chamber in which the orthogonal processing cylinder 3 is arranged is The suction duct 18 of the suction fan 4 is opened directly above the orthogonal processing cylinder 3 and opened downward.

(e) Embodiments and operations The objects of the present invention are as described above, and the structure and operations of the embodiments shown in the accompanying drawings will be explained.

FIG. 1 is an overall perspective view of the threshing section of the present invention, FIG. 2 is a side sectional view of the threshing section, FIG. 3 is a plan sectional view of the threshing section, and FIGS. 4 and 5 show the suction duct 18. A side sectional view and a plan sectional view of the embodiment provided at an angle from side to side, and FIG. 6 is a side view of the suction fan portion.

First, to explain the overall structure, the grain culm is raised by the pulling device of the combine harvester and transported by the reaping and transporting device.
5, and the stock part passes through the handling chamber 26 while being held between the feed chains.

At this time, the ears come into contact with the handling teeth 1a of the handling cylinder 1 and are shed, and the fine grains fall from the crimp net 5 onto the sorting plate 7a of the swing sorting device 7. In addition, grains mixed with straw, chaff, etc. fall slowly from the crimp net and are placed on the straw rack 7b.

Granules and sorting plate 7 that have fallen from the stroke rack 7b
The fine grains sent from a pass through a sorting net or a sorting stroke rack 7c, and enter the first conveyor 8 from the first flow grain plate 24. The No. 1 conveyor 8 is connected to a grain frying conveyor, and fine grains are sent to a grain tank.

In addition, the waste straw and the chaff and grains attached to it are transferred to the straw removal conveyor from the 4th port, and the straw waste and chaff that fell at the 4th port are transferred to the stroke rack 7b of the swinging sorting device 7 and the sieving wire 10. Fall.

Conventionally, the straw waste and chaff sent from the oscillating sorter 7 to the sieving line 10 were discharged from the machine through the No. 3 port as is, except for those that fell onto the No. 2 conveyor section 9. In the present invention, an orthogonal processing cylinder 3 is provided at the tip of the sieve wire and above the No. 2 conveyor, and the straw waste and chaff coming out from the No. 3 opening are reprocessed by the handling teeth 3a.

When the grains are separated from straw waste, chaff, etc. by this treatment, they fall from the concave 23 of the orthogonal processing drum 3 and enter the No. 2 conveyor 9. 2
The No. 2 conveyor 9 is about to fall onto the No. 1 conveyor 8, but is blown away by the wind of the sorting fan 6, and the No. 2 grains entering the No. 2 grain board 27 from the end of the No. 1 grain plate 24, and the sieve line. The second grains, etc. that fall through the second flow grain plate 27 are collected and gathered to the right side of the threshing section, and are parallel to the handling cylinder 1 by the second thrower 13 and the second thrower cylinder 14. Parallel processing cylinder 2
Return to.

The grains processed by the handling teeth of the parallel processing cylinder 2 fall again from the concave onto the swing sorting device 7, and the straw and culm that do not pass through the concave return to the handling chamber 26.
Further, a suction duct 18 is arranged above the orthogonal processing cylinder 3 over the entire width of the threshing section.
At step 8, all the dust generated in the threshing machine frame is suctioned, and a suction fan 4 installed on the side is used to remove the dust from the dust exhaust port 1.
It is blown out to 7.

The orthogonal processing barrel 3 is equipped with handling teeth 3a, above which the processed material is sent through a sieve line or the like and is input. The feed plates 11 and 12 are attached to the blocking plate 21 and the processing chamber rotating plate 20 so that these particles are efficiently bitten and flowed toward the third port 22.
is arranged so as to be inclined in the direction in which the processed material is sent to the third port.

In addition, a concave 23 is arranged at the bottom of the orthogonal processing cylinder 3, from which the grains threshed from the chaff are transferred to two
Enter the number conveyor. Further, a third port 22 for discharging straw waste and chaff after processing is provided at the left end of the orthogonal processing cylinder 3 toward the outside of the machine.

The processing chamber of the orthogonal processing cylinder 3 is surrounded at the front by a dogleg-shaped processing chamber turning plate 20, and extended from this by a concave 23 at the bottom, and at the rear is a second flow grain plate (rear).
28, and above it is a suction duct 18.
It is covered with a shielding plate 21 leading to. The shielding plate 21 is inclined toward the front in an overhanging manner, and is configured to prevent the material being processed in the orthogonal processing cylinder 3 from being splashed up and sucked into the suction duct 18. ing.

In addition, the suction duct 18 has a shape in which the suction port faces upward when viewed from the side, and although it sucks up light dust that comes up, it also sucks up grains and other particles that are blown away by the processing cylinder and come up. The grains with straw are constructed so as not to be sucked.

In addition, the straw discharge guide plate 32 constituting the fourth port A protrudes downward and blocks the front part of the suction duct.
The structure is such that grains with straw from the fourth port A and the dust feeding port 19 are not sucked.

In addition, as shown in FIGS. 1, 4, and 5, in order to change the front and back position of the suction duct with respect to the swinging sorting device 7, the suction duct is tilted left and right, and this makes it possible to reduce the number of grains in the grain feed. The chain side is brought closer to the swing sorting device 7 side, and the suction duct is moved back to the feed chain side where the overall flow rate of grains, straw waste, etc. is large.

In addition, the processing chamber rotating plate 20 is formed in a dogleg shape or an arc shape close to this, and the upper part is arranged to be inclined backward approximately on the extension of the first flow grain board 24, and the lower part is arranged in an orthogonal shape. It is bent along the outer periphery of the body 3 and faces onto the No. 2 conveyor 9 or the concave 23.

(F) Effects of the Invention Since the present invention is configured as described above, it has the following effects.

First, the upper part of the rotation locus of the handling tooth 3a of the orthogonal processing cylinder 3 was positioned on the extension line of the swinging sorting device 7, and the handling tooth 3a was rotated in the direction of moving backward, so that the swinging Since it can be placed on the upper surface of the orthogonal processing cylinder 3 and scraped into the processing chamber constituted by the orthogonal processing cylinder 3 without starting the flow of the sorting device 7, the terminal end of the swinging sorting device 7 can be As a result, straw waste no longer accumulates on the surface of the orthogonal processing cylinder 3.

Secondly, by communicating one left and right end of the processing chamber in which the orthogonal processing cylinder 3 is arranged to the third port 22,
Large straw waste after being processed in the orthogonal processing cylinder 3 can be reliably discharged from the third port 22.

Thirdly, by arranging the suction duct 18 facing the upper surface of the full-width orthogonal processing cylinder 3, it is no longer possible to directly suction the scattered particles and grains with straw coming out of the orthogonal processing cylinder 3, and only dust is reliably taken in and removed from the machine. It is released to

[Brief explanation of drawings]

FIG. 1 is an overall perspective view of the threshing section of the present invention, FIG. 2 is a side sectional view of the threshing section, FIG. 3 is a plan sectional view of the threshing section, and FIGS. 4 and 5 show the suction duct 18. A side sectional view and a plan sectional view of the embodiment provided at an angle from side to side, and FIG. 6 is a side view of the suction fan portion. 1... Handling cylinder, 3... Orthogonal processing cylinder, 7... Oscillating sorting device, 4... Suction fan, 18, 18a... Suction duct.

Claims (1)

[Claims] 1 In the threshing section, in which the orthogonal processing cylinder 3 is provided below the terminal end of the oscillating sorting device 7, the orthogonal processing cylinder 3 is installed at approximately the same height as the terminal end of the oscillating sorting device 7. Position the upper rotation locus of the handling tooth 3a,
The handling teeth 3a are configured to rotate rearward from the terminal position of the swing sorting device 7, and one left and right end of the processing chamber in which the orthogonal processing cylinder 3 is arranged opens into the third port 22, and furthermore, the orthogonal processing A suction guide structure for a combine threshing section characterized in that a suction duct 18 of a suction fan 4 is opened downward directly above a barrel 3.