JPS629775Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention has a lower conveyance chain extending toward the threshing device from the vicinity of the raking star wheels arranged in parallel above the cutting blade in the reaping section of the combine. The present invention relates to a conveying device configured such that the inclination can be changed depending on the length of the culm using the culm as a rotational fulcrum.

As a conventional example of the conveying device with the above configuration,
There is a technology as seen in Japanese Patent No. 49-144737.

In the conventional model, the rotation fulcrum provided at the front of the lower conveyance chain is located at the rear of the star wheel, avoiding the star foil, so when the lower conveyance chain is tilted, the lower conveyance starting end This causes a large change in vertical direction relative to the star foil, resulting in a significant change in the inheritance of the grain culm, which poses a problem in that the inheritance posture is likely to be disturbed.

Therefore, the present invention aims to reliably convey the grain culm from the star foil to the lower conveyance chain without changing the starting end of the lower conveyance chain even if the lower conveyance chain is tilted and adapted according to the length and shortness of the culm. The purpose of the present invention is to provide a device that can eliminate the drawbacks of the conventional example.

Next, the embodiment shown in the drawings will be described.

FIG. 1 shows a side view of the combine, in which a threshing device 4 is mounted above the machine frame 11 that supports above the crawler 10, and the feed chain 6 of the threshing device 4 is located at the center of the width of the entire machine body. The threshing device 4 is installed in such a way that it extends in the front and back direction of the machine body. They are arranged oppositely, and their rear ends extend toward the straw cutter 15 side behind the threshing device 4.

Further, a control tube 16 and a seat 17 are installed on the front right side of the entire fuselage, a paddy tank 18 and the like are installed behind them, and an engine 19 is installed in the center of the rear of the fuselage.

Below the front part of the machine on the front side of the threshing device (4), a reaping frame 8 extending in the longitudinal direction is extended on the left side, and a rear part 8a' of the reaping frame 8' extending in the longitudinal direction is connected to the rear part 8a' of the left reaping frame 8 on the right side. Rear 8a
The frames 8, 8' are bent and extended toward the sides, and both frames 8, 8' are formed in an L-shape when viewed from above on the side, and the rear ends of both rear parts 8a, 8a' are connected by a connecting rod 20. A space C with nothing below is formed on the right side of the rear part 8a', and both rear parts 8a, 8
A thin drive case 9 is located within the narrow space between a′.
is attached to the case 9, and input is input from the input section 9a located above the rear part of the case 9.

In addition, left and right dividers 21, 21' are attached to the ends of both reaping frames 8, 8', respectively, and are placed forward from the middle part of a horizontal frame 22 horizontally installed across the front of both frames 8, 8'. A frame 8'' is extended, and an intermediate divider 21'' is attached to the tip thereof, and the cutting blade 1 is installed horizontally along the front surface of the horizontal frame 22, and tines 23, 23 are installed on the left and right at the rear between each divider. '' are installed diagonally, and both star wheels 2, 2' of the meshing type for scraping are arranged side by side at the upper rear part of the cutting blade 1, and both star wheels 2, 2' are arranged side by side from above. Belt-type auxiliary conveyors 3 and 3' with protrusions extend diagonally forward, respectively, and as shown by the dotted line A in FIG. It is configured to be located on the direction extension line.

A transmission case 24 is protruded from the upper part of the drive case 9 at the lower rear of the left star wheel 2,
An intermediate transmission case 2 having an L-shaped side surface extending upward from the side of the transmission case 24 to the rear of the star wheel 2.
5 is transmission connected to the transmission case 24 so as to be rotatable about a lateral rotation fulcrum O, and an intermediate transmission case is provided on the lower surface slightly above the starting end 5a of the long lower conveyance chain 5. The upper end of the lower conveyor chain 5 is arranged in a row so that its starting end 5a enters into the rear gap between the left star wheel 2 and the auxiliary conveyor 3 above it, and extends from the lower surface of the lower conveyor chain 5 near the terminal end. The lever is movable and adjustable in relation to the locking groove of the guide plate, and the lower conveying chain 5 is rotated around the rotational fulcrum O as in the conventional type, and the inclination can be adjusted freely depending on the length of the culm. The clamping surface of the lower conveyance chain 5 is arranged as indicated by the dotted line A, and the space C is visible below the lower conveyance chain.

In addition, a transfer conveyance chain 26 that inherits the culm side of the grain culm from the lower conveyance chain 5 is extended so as to approach the starting end of the feed chain 6, and power is transmitted from the drive case 9 via the transmission pipe 27. The ear tip conveyor 7 is extended from the lower conveyance chain 5 to above the transfer conveyance chain 26.
The grain culm conveyance surface of the transfer conveyance chain 26 is constructed as shown in the dotted line A above.

When the machine is moved forward during combine harvesting work, each divider 21, 21', 21'' separates, and both lifting cases 24, 24' perform a lifting action, and both auxiliary conveyance bodies 3, 3' The cutting blade 1 cuts the grain while scraping it in between, and both star wheels 2, 2' scrape the grain culm between them and send it out to the rear. 2', the culm side portion is inherited by the starting end 5a of the lower conveyance chain 5.

While the lower conveyance chain 5 clamps and conveys the culm part, the ear tip conveyor 7 conveys the ear end side, and when the culm side is inherited from the lower conveyance chain 5 to the transfer conveyance chain 26, it is then inherited to the feed chain 6. and supplied to the threshing device 4.

In that case, the grain culm will be transported from between the star wheels 2 and 2' to the feed chain 6 in the front-rear direction along the dotted line A as shown in FIG. Because it is space C, it is transported without any obstructions, and
Even if straw waste etc. falls, it is removed to the ground side through space C.

Furthermore, when the lower conveyance chain 5 is adjusted to rotate according to the length of the culm, the entire chain 5 rotates around the rotation fulcrum O, and the rear end side moves up and down largely as shown by the arrow B, but the starting end Since the rotational fulcrum O of the portion 5a is located above the star foil 2 and is close to the bottom, the transfer position does not change significantly, and the transfer posture remains almost the same. By changing the clamping position at which the grains are peeled off, it is possible to adjust the depth of supply to the threshing device 4 to be approximately the same regardless of whether the grain is long or short.

In this way, the present invention has a structure in which the lower conveying chain 5 extends from the vicinity of the raking star wheels 2, 2' arranged in parallel above the cutting blade 1 toward the threshing device 4, depending on the length of the culm. In the reaping section of the combine, which is configured so that the inclination can be changed, a rotational fulcrum O of the lower conveying chain 5 is provided below the star wheel 2 on one side, and the lower conveyance chain 5 is rotatable in the vertical direction around the rotational fulcrum O. Attach an intermediate transmission case 25 with an L-shaped side surface to extend the rear of the star wheel 2 upward,
The starting end 5a of the lower conveyance chain 5 is located at the upper extension end thereof.
Since the starting end of the lower conveying chain 5 is located at a position that substantially coincides with the pivot point O across the star foil 2 in side view, the culm of the grain The lower conveying chain 5 can successfully take over the base side from the star foils 2, 2', and since the starting end 5a approaches the upper side of the rotation fulcrum O, the lower conveying chain 5 can be changed in inclination according to the length of the culm. Even if the starting end portion 5a is moved, the transfer can be carried out without changing greatly, and the transfer and conveyance can be carried out reliably and favorably.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a schematic side view of a combine harvester, FIG. 2 is a schematic plan view thereof, FIG. 3 is a part of FIG. 1, and FIG. FIG. 5 shows a part of FIG. 4. 1...Mower blade, 2,2'...Star foil, 4...
... Threshing device, 5... Lower conveyance chain, O... Rotating fulcrum, 5a... Starting end.

Claims (1)

[Scope of utility model registration request] A lower conveying chain 5 extending toward the threshing device 4 from the vicinity of both raking star wheels 2, 2' arranged in parallel above the cutting blade 1 is configured so that its inclination can be changed depending on the length of the culm. In the reaping section of the combine harvester, a rotation fulcrum O of the lower conveyance chain 5 is provided below the star wheel 2 on one side, and an intermediate transmission case with an L-shaped side surface is configured to be rotatable in the vertical direction about the rotation fulcrum O. 25 is attached to extend the rear part of the star wheel 2 upward, and the upper extension end thereof supports and transmits a portion near the starting end 5a of the lower conveying chain 5, and the starting end of the lower conveying chain 5 is shown in a side view. A conveying device characterized in that it is configured to sandwich a star foil 2 and to be located at a position substantially coinciding with a rotational fulcrum O.