JPH06319359A - Reaping device of combine - Google Patents

Abstract

PURPOSE:To improve the dust-proof property of a combine for multi-row reaping and secure the compactness of the frame and the forward visual range of the combine. CONSTITUTION:The reaping device of a combine is characterized by disposing a grain culm-carrying mechanism for carrying grain culms reaped with reaping blades to the inlet of a threshing section and further disposing an arch-like dust-proof cover 41 above the carriage passage 10a of a right carrying mechanism on the front of a right side operation column and behind a front gate 37 at the upper end of a raising case 24.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine harvester for a combine harvester having a number of cuts of five or more, for carrying grain culms cut by a cutting blade to a threshing section.

[0002]

2. Description of the Related Art In a combine having a structure in which a dustproof cover is arranged in front of a threshing part and above a mowing part, for example, a structure having a narrow cutting width for cutting four rows or less, a rear right side of a front gate There is a means of disposing a flat plate-shaped right dust-proof cover in order to prevent dust from being generated at the cutting section.

[0003]

However, in the case of a combine having a wide cutting width for cutting five or more rows, the conveying distance to the feed chain inheriting position of the right conveying mechanism is long in the lateral direction in front of the right operation column. As a result, when the transport grain culm passes under the right dust-proof cover, there arises a disadvantage that the grain-cusp tip side interferes with the dust-proof cover.

[0004]

Accordingly, the present invention is provided with a grain culm transport mechanism for transporting grain culms cut by a cutting blade to a threshing entrance, and is raised on the transport path of the right transport mechanism in front of the right operation column. By installing an arch-shaped dustproof cover behind the front gate at the top of the case, even if it is a combine with a wide cutting distance, such as a wide cutting range for cutting 5 rows or more, and a long transport distance in front of the right-hand operation column, the dustproof cover can be used. It can pass through the high arch-shaped lower part of the top without interfering the tips and improve its transport performance.
It is possible to suppress the front-rear length of the mowing unit to the minimum, to secure a good forward field of view, and to improve the dustproof property of the mowing unit.

[0005]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a side view of the right dust-proof cover, FIG. 2 is a side view of the combine as a whole, and FIG. 3 is a plan view thereof.
Is a track frame equipped with a traveling crawler (2),
(3) is a machine frame installed on the track frame (1),
(4) is a threshing section in which the feed chain (5) is stretched on the left side and the handling cylinder (6) and the processing cylinder (7) are built in, (8)
Is a mowing section provided with a cutting blade (9) and a grain culm transport mechanism (10), (11) is a hydraulic cylinder for moving the mowing section (8) up and down via a mowing frame (12), and (13) is a straw chain (14) The straw processing unit that faces the end, (15) is a grain tank that carries the grain from the threshing unit (4) through the lifting cylinder (16), and (17) is the tank (15). A discharge auger for discharging grains out of the machine, (18) is a driving operation unit (1
9) and a driver's cab provided with a driver's seat (20), and (21) is an engine provided below the driver's seat (20), and is configured to continuously cut grain culms and thresh.

As shown in FIGS. 4 to 6, the reaping section (8) has a raising tine (23) for raising an uncut grain culm which is taken in through a sward plate (22), and a five-row raising case. (24), a star wheel (25) and a take-in belt (26) for scraping the culm side and the tip side of the raised culm, and a cutting blade (9) for cutting the culm side during the scraping.
And a lower right transport chain (27) that conveys the culm side of the right-sided two-row culm to the left diagonally rearward, and the tip side of the right-sided two-rowed grain culm to the diagonally left rearward. An upper right transporter (28) having a right upper transport tine (28a), and a lower right transport chain (27) and an upper right transporter (28) rearward from the culm side and the tip side of the third grain culm from the right side. The central upper transport body (30) having the central lower transport chain (29) and the central upper transport tine (30a) to be joined near the feeding intermediate position of the above, and the culm side and the tip side of the left two culms are right. The lower left transport chain (31) that joins the lower transport chain (27) and the upper right transport body (28) near the feed end position
And the left side of the upper left carrier (32) having the upper left side transport tine (32a) and the culm side of the grain culm for 5 rows that joins the feeding end of the lower right transport chain (27). Vertical transfer chain (3
3) and before and after the tip transfer of the culms of the grain culms, which are arranged above the upper right transporter (28) and are transported by the transport chains (27) (33), in the threshing inlet direction. The front and rear tip transporters (34) (35) having tines (34a) (35a), and the upper and lower substantially central positions between the feed end portions of the upper right transporter (28) and the vertical transport chain (33). The feed chain (5) is provided with an auxiliary transport chain (36) for taking over the grain stalks in a proper posture,
The culm side and the tip side of the grain culm of the row are each chain (27) (2
9) (31) and the respective carriers (28), (30) and (32) are passed through and merged with the vertical transport chain (33) to be supplied to the threshing unit (4) for threshing treatment. .

As shown in FIG. 7 to FIG. 9, the left front dustproof is a substantially rectangular shape in plan view above the reaping unit (8) between the threshing unit (4) and the front gate (37) at the upper end of the raising case (24). The right grain culm of the reaper (8) between the right gate (40) and the front gate (37), which is covered with the cover (38) and the rear dustproof cover (39), and which forms the operation portion (19) on the upper part. The upper part of the transfer path (10a) is covered with a right dustproof cover (41) having a substantially triangular shape in plan view to prevent dust and the like generated in the reaper (8) from scattering to the driver's seat (20).

As shown in a side view of FIG. 1, the right dust-proof cover (41) is formed in an arch shape having a top portion (41a), and the lower surface of the front end mounting portion (41b) is fixedly supported on the upper surface of the front gate (37). 8 As shown in the front view, the top portion (41a) is inclined upward to the left (to the right in the figure), and as shown in the plan view of FIG. 9, the left end width (T) is sequentially increased from the right end width (t) (t < T) to form two passages (42) at the tip of the grain for the right side on the inside of the cover (41).
It is configured so as to prevent the tip of the head from interfering with the cover (41) during the transportation of the grain culms.

As shown in FIGS. 10 to 11, the grain culm separator (4) is provided between the non-acting side of the right side second raising case (24a) and the working side of the third right side raising case (24b).
3) is provided, and the raising case (24
a) A mounting plate (44) fixed to the left cutting frame pipe (12a) and a fixed mounting plate (46) of the pull-up connection pipe (45) fixed to the pipe (12a) at the base end, When the bottom and the upper part of the separating body (43) are detachably fixed, and the turf is scratched on the tine (23) of the right side third raising case (24b) at the time of scraping the stubble in the fall / soft culm. The separator (43) prevents the culm from being scratched by the non-acting tine (23) of the right-side second-raising case (24a), while the right-side second-raising case (24a) is left. The rear side of the left side cover (47) is arranged so that the front edge (43a) of the separating body (43) is placed along the rear part of the left side cover (47), and the cover (47) is pushed backward by the resistance of the culm in the direction of the arrow in FIG. Cover (47) is supported by the front edge (43a) when It is configured so as to prevent its deformation Te.

The central and upper left carrier bodies (30)
The central and left tip transporters (48) (4) also above (32).
9) is provided.

The present embodiment is configured as described above, and in the combine of 5 or more rows, the right end side of the cutting section is expanded to the right side of the machine body, and the right grain culm conveying path (10a) is the operation column (40). ) Even if it becomes longer to the upper left in the front, the tip of the transport grain culm is at the top (41a) of the right dust cover (41).
It is possible to carry out good harvesting and transport of the grain culm without the grain culm tip interfering with the right dust cover (41) by passing through the passage (42) formed on the inside, and therefore occurs in the reaper (8). Dustproof left and right dustproof covers (38)
(39) (41) can be reliably carried out, and smooth grain culm transportation is performed while maintaining a good grain culm posture without the right dust cover (41) interfering with the transport grain culms below. Can be tightened.

In the case of this construction, therefore, even in the case of a combine for multi-row cutting having five or more lines, the front-rear length (A) of the cutting section (8) can be suppressed to the shortest dimension, and the total length of the combine can be reduced. While it can be shortened and maneuverability can be improved, workability and safety can be improved by ensuring a sufficient forward field of view.

FIG. 12 to FIG. 13 show an example of a modified structure of the weed board, in which the non-operating side comrades of the raising cases (24b) and (24c) which are adjacent to each other in the inside in the combine for multi-row cutting are brought close to each other. 3rd and 4th case from the right side (24
b) A sward plate (22a) provided between (24c),
The raising rollers (5) that rotatably support the lower portions of the tine driving chains (50) of the raising cases (24b) and (24c).
The lateral width (D) of the plate (22) is formed to be large so that both ends of the plate (22a) are projected outward from the roller shaft (51a) of 1) by a predetermined dimension (C), and the plate (22) is 22a)
Case (24b) by raising the lower points (B) on the left and right edges
The tines (2) of these cases (24b) and (24c) are provided so as to be located below the fixed dimension (E) from the (24c).
3) is configured to prevent the grain culm from being drawn into the cases (24b) and (24c).

[0014]

As is apparent from the above embodiments, the present invention is provided with a grain culm transporting mechanism (10) for transporting grain culms harvested by the cutting blade (9) to the threshing inlet, and the right operation column (4).
0) The front gate (3) at the upper end of the raising case (24) on the transport path (10a) of the front right transport mechanism (10).
7) Since the arch-shaped dust cover (41) is provided on the rear side, for example, the combine width is wide in the right direction with a wide cutting width on the right for cutting 5 rows or more and the front side of the right operation column (40). Even if there is, the high arch-shaped lower part of the top of the dust-proof cover (41) can be passed without interfering the tips to improve the transport performance thereof, and the front-rear length of the mowing part (8) can be minimized. It is possible to obtain a remarkable effect such that the front view is well secured and the dust-proof property of the reaper (8) is improved.

[Brief description of drawings]

FIG. 1 is a side view of a right dustproof cover portion.

FIG. 2 is an overall side view of the combine.

FIG. 3 is an overall plan view of the combine.

FIG. 4 is a side view of a reaping unit.

FIG. 5 is a front explanatory view of a reaping unit.

FIG. 6 is an explanatory plan view of a reaping and conveying section.

FIG. 7 is an explanatory plan view of a reaping unit.

FIG. 8 is a front explanatory view of the right dustproof cover portion.

FIG. 9 is a plan view of a right dustproof cover portion.

FIG. 10 is a side view illustrating a separation body portion.

FIG. 11 is a front explanatory view of a separator part.

FIG. 12 is a side view showing another modified structure example of the grass plate.

FIG. 13 is a front explanatory view showing another modified structure example of the grass plate.

[Explanation of symbols]

 (9) Cutting blade (10) Grain transfer mechanism (10a) Transfer path (24) Raising case (37) Front gate (40) Operation column (41) Dust cover

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Harumi Inagaki 1-32, Chaya-cho, Kita-ku, Osaka Yanmar Agricultural Machinery Co., Ltd. (72) Tomoyoshi Hirose 1-32, Chaya-cho, Kita-ku, Osaka Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Yoshikazu Kamayama 1-32 Chayamachi, Kita-ku, Osaka City Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Jun Terashima 1-32 Chayamachi, Kita-ku, Osaka Yanmar Agricultural Machinery Co., Ltd. In-house (72) Inventor Hirohisa Nomura 428 Enami, Okayama City Seirei Industrial Stock Company In-house

Claims (1)

[Claims] 1. A grain culm transporting mechanism for transporting grain culms cut by a cutting blade to a threshing entrance, and on the transport path of the right transporting mechanism in front of the right operation column, behind the front gate at the upper end of the raising case, A combine harvester having an arched dustproof cover.