JPS6036038Y2 - Straw bundling device in combine harvester - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a straw binding device for a combine harvester.

The straw that has been harvested and threshed by a combine harvester may be delayed due to the resistance of the discharge port of the threshing section, and conversely, when it is transferred from the foot chain to the straw conveying belt, it is transferred with the tip leading the way. Because the conveying posture of straw is disturbed,
If this disturbed waste straw is fed to the waste straw binding device in the same position, the waste straw binding device may fail to bind the waste straw,
Even when the straw bundles are discharged from the straw binding device outside the machine, there is a problem that the straw bundles are connected to each other and cannot be bundled and discharged in an orderly manner.

The present invention was devised to solve the above-mentioned problems, and in particular, the rotating direction is opposite to the straw conveying belt when viewed from the side, and the upper side of the rotation locus overlaps with the straw conveying belt.
A plurality of straw raking wheels, the lower side of which is close to the raking locus of the packer of the straw binding mechanism, are installed at appropriate intervals on both sides of the end of the straw conveying belt, so that their action covers approximately the entire width of the conveyed waste straw. At the same time, the terminal end side of the straw conveying guide plate attached horizontally to the lower position of the straw conveying belt is curved downward along the rotation locus of the straw raking wheel, and the straw raking path of the packer is By forming a straw conveyance path of the straw raking wheel that communicates with Straw removal bundling device for a combine harvester that forcibly corrects the straw in the direction along the direction of the straw and transfers it toward the packer in an orderly manner, prevents bundling defects in the straw bundling mechanism, and prevents problems in discharging the straw after bundling. The purpose is to provide

The structure of the present invention will be described with reference to an embodiment shown in the drawings. 1 is a culm reaping section of a combine harvester, 2 is a threshing section, and a straw binding mechanism 3 is provided behind the threshing section 2. is,
Reference numeral 11 denotes a power transmission shaft to the knot portion 3, which is mounted on a shaft in a direction along the straw removal and binding posture of the straw removal and binding mechanism 3.

4 is a handling barrel of the threshing section 2, and 5 is its foot chain.

Between the conveyance end of the foot chain 5 of the threshing section 2, the immediate straw discharge position, and the approximately central portion of the straw supply position in the straw removal and bundling mechanism 3, a straw conveyance belt 6 is installed approximately horizontally and diagonally toward the center of the rear in plan view. A straw conveying path 9 is formed which extends across the length of the straw, and below the conveying end of the straw conveying belt 6 and on both sides of the straw conveying belt 6, a scraper is provided between the straw removing straw binding mechanism 3 and the packer 10. A plurality of star wheels each having a backward angle formed only in the direction of rotation are connected to a rotation shaft 1 parallel to the transmission shaft 11 of the straw removal bundling mechanism 3.
2, a plurality of straw scraping wheels 7 are arranged at appropriate intervals so as to be able to act over substantially the entire width of the conveyed waste straw.

The lower surface side of the straw conveying belt 6 and the upper rotation locus of the straw raking wheel 7 are partially overlapped with each other in a side view, and the lower side of the straw raking wheel 7 is tied with straw for removal. Mechanism 3 Patsuka 10
It is designed to be close to the scraping trajectory.

Reference numeral 8 denotes a straw conveyance guide plate attached horizontally below the straw conveyance belt 6, and both are configured to jointly sandwich and convey the waste straw.

The terminal end side of the straw conveying guide plate 8 is curved downward along the rotation locus of the straw raking wheel 7 and is formed into a step shape that drops sharply, so that the straw raking wheel 7 has a raking action. According to
The straw conveying path 9 for the straw raking wheel 7 that conveys straw is a packer 10.
It is formed in communication with the scraping passage.

The straw raking locus of the packer 10 is close to the lower side of the straw raking wheel 7, and it receives the straw from the straw raking wheel 7 and transfers the straw to the binding position of the straw removal and binding mechanism 3. This is to push out a certain amount at a time.

In the configuration as described above, the waste straw threshed by the threshing section 2 during harvesting in the field is discharged from the conveyance end of the foot chain 5, and the waste straw discharged here is transferred to the straw conveyance guide plate. The straw is conveyed by the straw conveying belt 6 along the straw conveying path 9 formed by the straw conveying belt 8 .

When the waste straw being conveyed reaches the end of the conveyance of the straw conveyance path 9 by the straw conveyance belt 6, it is scraped into the pushing path of the packer 10 by the straw scraping wheel 7, concentrated and compressed by the packer 10, It is tied up at the knot 3 and discharged outside the machine.

In such a process of conveying the waste straw, the waste straw conveyed by the straw conveying belt 6 is not always in a constant posture, and the tips of the culms are delayed due to, for example, exit resistance of the threshing section 2.
When the stock head is sent in an inclined position, as shown in FIGS. 4 and 5, even if the straw transport belt 6 reaches the stepped part, the straw is not removed. Since the tip side of the ear is still being held between the straw conveying belt 6 and the straw conveying guide plate 8, the waste straw will be conveyed backward by the straw conveying band 6 until the pinching on the ear tip side is completely released. trying to be

At this time, as shown in Figure 5, the leading stock capital is
The receiving is stopped by a straw raking wheel 7 disposed close to the slow end of the straw conveying belt 6, and the straw raking wheel 7 is rotated obliquely in the opposite direction along the rotation locus of the straw raking wheel 7 as indicated by the solid line arrow. During the action of being pushed back downwards, the tips of the ears are transported by the straw conveying belt 6 as shown by the dotted line arrows to the stepped portion, and there is an alignment action at the ridgeline portion 13 at this stepped portion, and a rapid falling action from here. At this point, the straw is recovered from the delay at the tip of the ear, and is transferred to the transmission shaft 11 along the conveyance locus in the semicircumferential direction of the straw raking wheel 7 along the step.
The culm posture is corrected so that it is parallel to the .

Then, the straightened straw is raked by the straw raking wheel 7 at the tip and the base of the stalk at the same time, and is orderly transferred to the packer 10 of the straw binding mechanism 3. Poor bundling can be reliably prevented.

In addition, since the culm posture is corrected along the semicircular transport path of the straw raking wheel 7, the distance from the straw transport belt 6 to the packer 10 can be shortened even if the correction distance is long. .

Even if the tip of the straw is transported by the straw conveying belt 6 in an inclined posture with the tip of the straw leading and the head of the stalk lagging behind, the same action as described above will cause the head of the stalk to catch up and maintain the culm posture. It will be corrected.

In short, the present invention provides a straw binding mechanism 3 behind the terminal end of the straw conveying belt 6 extending obliquely toward the rear center from the straw discharging position of the threshing section 2, and , between the straw conveyance belt 6 and the packer 10 of the straw removal bundling mechanism 3, the rotating direction is opposite to the straw conveyance belt 6 in side view, the upper side of the rotation locus overlaps with the straw conveyance belt 6, and the lower side The straw raking wheels 7, whose sides are close to the raking locus of the packer 10 of the straw binding mechanism 3, are arranged at appropriate intervals on both sides of the end of the straw conveying belt 6 so that their action extends over substantially the entire width of the conveyed waste straw. A plurality of straw conveying guide plates 8 are arranged horizontally below the straw conveying belt 6, and the terminal end side of the straw conveying guide plate 8 is curved downward along the rotation locus of the straw raking wheel 7. Since the straw conveying path 9 of the straw raking wheel 7 is formed to communicate with the raking path of the packer 10, the upper side overlaps with the terminal end of the straw conveying band 6, and the lower side overlaps with the straw binding mechanism 3.
Using the straw raking wheel 7 disposed close to the raking locus of the packer 10, the straw conveying belt 6 is moved from the straw discharge position of the threshing section 2.
The posture of the straw being conveyed can always be forcibly corrected in the direction along the transmission shaft 11 of the straw removal bundling mechanism 3, and at the same time, the posture can be further changed in the direction along the transmission shaft 11 of the straw removal bundling mechanism 3. The corrected straw is neatly transported toward the straw binding mechanism 3 by the packer 10 of the straw binding mechanism 3 whose scraping trajectory is close to the end of the conveyance trajectory of the straw raking wheel 7. It is possible to prevent poor bundling.

Moreover, the waste straw conveyed to the end of the straw conveying belt 6 is directed downwardly from the end of the straw conveying belt 6 along at least a semicircumference of the straw raking wheel 7. The straw conveying belt 6
The distance from the end of the straw binding mechanism 3 to the packer 10 of the straw binding mechanism 3 is formed not in the extending direction of the straw conveying belt 6, but in the semicircumferential direction of the straw raking wheel 7 extending downward from the end of the straw conveying belt 6. By utilizing the structure shown in FIG. After correcting the posture in the direction along , the straw can be transferred in an orderly manner to the packer 10 of the straw removal bundling mechanism 3 which is close to the lower side of the straw scraping wheel 7.

[Brief explanation of drawings]

The drawings show an embodiment of the straw binding device for a combine harvester according to the present invention, in which Fig. 1 is an overall side view of the combine, Fig. 2 is a side view of the main parts of the same, and Fig. 3 is a plan view of the same. FIG. 4 and FIG. 5 are a plan view and a side view for explaining the functions of the main parts. 3... Straw removal bundling mechanism, 6... Straw conveyance belt, 7... Straw raking wheel, 8... Straw conveyance guide plate, 9. ... Straw conveyance path, 10 ... Patch, 11 ... Transmission shaft, 12 ... Rotating shaft.

Claims (1)

[Scope of utility model registration request] A straw binding mechanism 3 is provided behind the terminal end of a straw conveying belt 6 extending obliquely toward the rear center from the straw discharging position of the threshing section 2, and the straw binding mechanism 3 is connected to the straw conveying belt 6 below the terminal end of the straw conveying belt 6. Between the packer 10 of the straw removal bundling mechanism 3, the rotating direction is opposite to the straw conveyance belt 6 when viewed from the side, the upper side of the rotation locus overlaps the straw transport band 6, and the lower side of the straw removal bundling mechanism 3 A plurality of straw raking wheels 7 close to the raking locus of the packer 10 are arranged at appropriate intervals on both sides of the terminal end of the straw conveying belt 6 so as to be able to act on substantially the entire width of the conveyed waste straw. , the terminal end side of the straw conveying guide plate 8 attached horizontally to the lower position of the straw conveying belt 6 is curved downward along the rotation locus of the straw raking wheel 7,
A straw tying device for a combine harvester, characterized in that a straw transport path 9 of a straw raking wheel 7 is formed which communicates with a raking path of a packer 10.