JP2935013B2 - Combine harvester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine harvester that raises uncut kernels and continuously cuts them.

[0002]

2. Description of the Related Art Conventionally, as shown in Japanese Utility Model Laid-Open No. 63-52222, there is a multi-row cutting combine provided with a plurality of raising cases.

[0003]

In the prior art, the left and right scraping belts and the transverse feed chain are provided on the rear side of the raising case, and the length of the transport chain is changed to increase the number of the raising case. Because of the streaking, it is necessary to join the uncut culms raised by the raising case in the center of the cutting width to the middle of the transport chain and clamp them. Alternatively, there is a problem that prevention of clogging or the like cannot be easily performed. Therefore, Japanese Utility Model Laid-open No. 2-83724
As shown in the official gazette, the right and middle two rows of star wheels are driven via the right and middle culm base transport chains, and the left two rows of star wheels are driven via the left culm base transport chain. There is a driven 6-row cutting technique, but the right-side star wheel of the two left-sided star wheels is drivingly connected to the left-culm base transfer chain, so the left-culm base transfer chain is formed by two front and rear chains. Therefore, there is a problem that it is not easy to simplify the structure of the left culm base transport chain. Therefore, by drivingly connecting the left culm base transfer chain to the left star wheel of the two left-sided star wheels, the left culm base transfer chain is formed by one chain, and the structure can be simplified. In order to omit one star wheel from the 6-wheel cutting starwheel structure to form a 5-row cutting machine, it is necessary to significantly change the design of the peripheral structure such as the left culm base transfer chain, and to change the structure of the 5-wheel cutting wheel. There is a problem that a 6-row cutting structure cannot be easily obtained even if a single left-sided star wheel is added to the star wheel of the cutting structure.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a raising case for six lines, a star wheel and a scraping belt for six lines, each pair of left, middle and right two lines, In a 6-row combine harvester equipped with three culm-conveying chains for transporting each of the middle and right two-row grain culms, the right two-row star wheel is engaged, and the left and middle The four sets of star wheels are meshed, and the star wheels are divided into two sets on the left and right to transmit the driving force of the middle and right two culm base transfer chains. the central converging portion from the left edge of the left travel crawlers is positioned outside the left
One star on the left side of the running crawler with reference to the left outer edge
-Distribute the left and right sides of the star wheel and the five wheels on the right
Left and right traveling crawler approximately equal to the cutting width of 5 rows
The star wheel for the right five strips is placed within the left and right running width of
It is possible to remove one of the two left-side star wheels to form a five-row mowing star wheel structure without changing the driving structure of the star wheel.
The star wheel structure for cutting 6 can be formed by adding one star wheel on the left side without significantly changing the design of the star wheel structure for cutting, and in the harvesting operation after turning the aircraft to the left, at least 1 Article or more spaces formed between the crawler mark and the current crawler previous strokes and performs travel was Xiu is that no Shitsuden performance adversely affected crawler track of the previous stroke, especially right
Whether to move the left and right traveling crawlers to the mowing traces for 5 rows
Machine with sufficient left and right ground contact width of the left and right traveling crawlers
It can easily prevent the body from tilting to the left and right, and the left end of the aircraft
Keep the left running crawler and the left side of the machine sufficiently against the cut culm.
Separating and preventing contact with uncut culms and stepping down
Confirmation of the rightmost cutting position makes it simple to perform the cutting operation.
This facilitates the improvement of the mobility and driving operability.

[0005]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory plan view of a mowing part, FIG. 2 is an overall side view of a combine, and FIG. 3 is a plan view of the combiner, where (1) is a track frame on which a traveling crawler (2) is mounted, and (3) is A machine installed on the track frame (1); (4) a threshing unit in which a feed chain (5) is stretched to the left and a handling cylinder (6) and a processing cylinder (7) are built in;
(8) is a cutting section for 6-row cutting provided with a cutting blade and a grain culm transport mechanism, etc., (9) is a straw processing section facing the end of a straw chain (10) (11), and (12) is a driver's seat A cab having (13) and a driving operation unit (14), (15) is an engine unit having an engine (16) provided therein, and (17) is disposed in front of the engine unit (15) and is a threshing unit (4). (19) is an upper discharge auger for taking out the grains in the grain tank (17) to the outside, and continuously harvesting and threshing. It is configured to do work.

As shown in FIG. 4, the cutting section (8) is a grain stalk raising device having a raising tine (21) for raising an uncut grain culm which is taken in through a weeding board (20).
The strip raising case (22), the star wheel (23) and the scraping belt (24) for scraping the culm side and the tip side of the raised grain culm, and cutting the culm side at the time of scraping. A cutting blade (25), a right culm base transfer chain (26) for conveying the culm side of the two right-sided grain culms after cutting diagonally rearward to the left, and a right side 2
Right ear tip tine (2) that transports the tip side of the grain stalk to the vicinity of the feed start end of the feed chain (5) diagonally to the left.
7) and a central culm base transport chain that joins the culm side and spike side of the cereal culm of three and four central sections from the right side to the vicinity of the feed end position of the rear right culm base transport chain (26). (2
8) and the center tip transfer tine (29), and the left culm base transfer chain (3) that joins the culm side and spike side of the grain culm for the left two rows near the feed end position of the right culm base transfer chain (26).
0), the left ear tip transfer tine (31), and the culm side of the six-row grain culm that joins the feed end of the right culm base transfer chain (26) to the feed start end of the feed chain (5). A vertical transport chain (32) to be spliced, and a right nose transport tine (27) and a vertical ending portion of the vertical transport chain (32) are provided at approximately the upper and lower vertical positions of the feed end portion, and the cereal stalk is placed in the feed chain (5) in an appropriate posture. An auxiliary transfer chain (33) to be inherited,
The harvested six-row grain stalks are transported through these Y-shaped transport routes (3
The feed chain (5) passes through the feed chain (5) for threshing.

A support (3) is provided at the front end of the machine (3).
The base of the cutting main frame (38) is supported on a receiving stand (36) that is erected and fixed via the vertical rotation fulcrum shaft (37), and the main frame (38) and the track frame (1). ), A mowing cylinder (39) is interposed therebetween so that the mowing portion (8) is moved up and down by the expansion and contraction operation of the cylinder (39).

As shown in FIG. 5, the star wheel (2)
3) is a pair of right and left right wheels (23
a) (23c) on the drive side, each left foil (23b) (2
3d) is the driven side, and the pair of left and right left foils (23f) and (23e) are paired with the two left center foils (2f).
3d) is driven by being engaged with the wheel shafts (40a) (40c) of the right wheels (23a) (23c).
Are linked to the right and center culm base transfer chains (26) and (28), and the right two-wheel foils (23a) and (23b) and the center culm base are driven by the driving force of the right culm base transfer chain (26). The center and left two wheels (23c) (23d) (23e) (23f) are configured to be rotated by the driving force of the transport chain (28).

As shown in FIGS. 6 to 9, the star wheel (23f) at the leftmost position and the culm-based transport chain (30) differ in the rotation axis center position.
The chain rotating drum (41) supporting the front end side of (0)
Cutting blade drive stand (43) fixed to the cutting frame (42)
A substantially L-shaped support frame (44) and a drum shaft (4
5) and a bearing (46) for free rotation, and a bracket (49) on the upper end of a fulcrum shaft (48) of upper and lower mowing blade drive arms (47a) (47b) fixed to the drive table (43). ) Is fixed, and the leftmost star wheel (23f) is supported by a pin (50) standing and fixed to the bracket (49) via a bearing (51) so as to freely rotate.
The drum shaft (45), which is the axis of the transfer chain (30), is displaced rearward outside the pin (50), which is the axis of the foil (23f), and the left two right wheels (23e)
The transport chain (30) is configured to avoid wrapping as much as possible.

The hollow portion (52) of the leftmost star wheel (23f) is closed by upper and lower lids (53) and (54). The upper and lower lids (53) are connected to the foil (23f) via bolts (55). (54) is fixed, the bearing (51) is fitted to the bearing case (56) at the center of the lower lid (54), and the lower lid (54) is supported by the pin (50);
By closing the foil (23f) with the upper and lower lids (53) and (54), it is configured to prevent culm debris and the like from falling on the lower drive arms (47a) and (47b).

Further, a large-diameter pulley (57) on the feed end side of the leftmost scraping belt (24) is integrally connected to the drum (41) via a case (58), and a feed start end side. Connect the small-diameter pulley (59) to the frame (44).
The belt support plate (6) of the belt cover (60) fixed to the
1) is supported via a pulley shaft (62) so that the scraping belt (24) is rotated by the driving force of the left culm base transport chain (30).

Further, the length of the lug (24a) of the leftmost scraping belt (24) is formed longer than that of the other belts (24), and the lug adjustment for adjusting the working length of the lug (24a) is made. A guide (63) is provided on the conveying surface side of the belt cover (60) to increase the compatibility with the belt (24), and the tips of the lugs (24a) on the non-conveying surface side are aligned substantially in front and rear. When the side cover (64) is mounted on the left side, the lug (24a) is compactly mounted along the leading path (D) of the lug (24a) to reduce the overall width of the reaping.

[0013] A chain guide (65) on the transfer surface side of the left culm base transfer chain (30) is formed by attaching a thin iron plate (67) to a square pipe (66). It is configured to increase the space, reduce the accumulation of straw waste, or reduce the cost, or reduce the weight.

Then, the feed end of the central stem former transfer chain (28) is joined to a position just before the feed end of the left stem former transfer chain (30), and a Y-shaped transfer path for two central and two left joins. (34a) and the path (34a).
A Y-shaped transport path (34b) for the left and right two-way merging that joins the feed end of a) to the vicinity of the feed end of the right-culm base transfer chain (26) is formed.
a) Y-shaped transport path (3) formed by (34b)
4) replace the right, center and left culm base transfer chains (26) (2)
8) Y-shaped grain culm transport mechanism (6) formed by (30)
8).

In addition, the center and left culm base transfer chains (28)
The confluence (A) of (30) is separated from the tine center line of the raising case (22) by a predetermined distance (L) backward, and the tine (21) is raised on the grain stem at the confluence (A). It is arranged in a state in which it does not act at all, and prevents problems such as culm spilling and culm clogging or irregularity of stock origin caused by grain culm catching on the tine (21) at the junction (A). It is configured to improve the cutting performance at

Furthermore, the center merging line (B) of the leftmost two-raised case (22), which is the merging point of the leftmost two ridges, is dimensioned (t) from the left outer edge line (C) of the left traveling crawler (2). ) In the operation after turning the aircraft to the left by turning the aircraft to the left, at least one or more spaces are formed between the crawler (2) trace of the previous stroke and the current crawler (2). crawler (2) intended to perform the running was Xiu been that no Shitsuden performance adversely affected trace, left
The leftmost side based on the left outer edge (C) of the traveling crawler (2)
1 stylus of star wheel (23) and 5 stories of right side
Ile (23) is distributed to the left and right, and reaping for 5 rows
Within the left-right running width of the left-right running crawler (2) approximately equal to the width
Arrange the star wheel (23) for the right 5 lines,
Move the left and right traveling crawlers (2) to the mowing traces for the right five lines
And make sure that the right and left contact width of the left and right traveling crawlers (2) is
To prevent the aircraft from tilting from side to side, etc.
The left traveling crawler (2) and the left side of the machine
Separate them sufficiently to prevent contact with the cutting culm and stepping down.
However, confirmation of the rightmost cutting position facilitates the operation of cutting.
It is configured to perform simplification and the like.

The cutting blade (25) is provided with an upper blade (2).
5a) and the lower blade (25b) are reciprocated right and left. The engaging grooves (69a) (69) of the knife heads (68a) (68b) fixed to the respective blades (25a) (25b).
cutting blade drive cylinders (70a) (7)
0b) is provided at one end of the drive arms (47a) (47b), and the other end of the drive arms (47a) (47b) is driven through the rods (71a) (71b). Left and right cranks (73) of case (72)
(73) and the crank (73) (73)
Thus, the upper blade (25a) and the lower blade (25b) are driven in mutually opposite directions.

The swing arms (47a) (47)
A pivot (74) supporting the cylinders (70a) (70b) of b)
a) An annular rubber (75) is interposed between the (74b) and the cylinders (70a) (70b) to reduce the impact on the upper blade (25a) and the lower blade (25b). .

Further, as shown in FIGS. 10 and 11, the cutting blade receiving plate (76b) holding the cutting blade (25) is moved to the cutting frame (42) side via the suspension member (76) and the bracket (77). An annular rubber is provided between a cylindrical portion (76a) of a suspension member (76) fixed to the receiving plate (76b) via a bolt (78) and a mounting bolt (79) of the bracket (77). (80) is interposed and the cutting blade (2
It is configured to achieve the anti-vibration of 5).

Further, a bracket (82) fixedly mounted on the lateral transmission case (81) near the cutting blade drive case (72).
, The base end of the left side divider (83) is supported, and the rear end of the divider (83) faces the front end side of the left traveling crawler (2).

A front gate (84) extending between the upper ends of the respective raising cases (22) is removably attached to a rear substrate (85) via hinges (86), and a front surface of the gate (84). The rear side is raised via a magnet (87) and is fixed to the case (22).

This embodiment is constructed as described above, and the leftmost two star wheels (23e) (23f)
Are linked to the central two-stage star wheels (23c) and (23d) to rotate the wheels (23e) and (23f), and to rotate the rotating drum shaft (45) of the lower left stem transport chain (30). ) With the leftmost wheel (2
By displacing rearward outside the pin (50) which is the wheel axis of 3f), the leftmost foil (2
In the state where the wrap with the relative foil (23e) meshing with 3f) is minimized, the feed end of the transport chain (30) is extended diagonally right and backward, and two linear transports with the right culm original transport chain (26). The Y-shaped merging by the route is enabled. The shaft center of the leftmost star wheel (23f) and the transport chain (3
Compared with the transfer structure having the same shaft center of 0), the transfer path can be made simpler, the structure can be made simple with less number of parts, and the maintenance and handling can be made simple.

In this case, the Y-shaped merging of the two central grain culms with the left two cereal culms, and the Y-shaped merging of the right two cereal culms with the merged four cereal culms. Therefore, the merging is performed sequentially and smoothly without culm clogging.

Further, the confluence (A) of the center and left culm base transport chains (28) and (30) where the merging is performed first is located at a position sufficiently separated behind the raising case (22). Since the tine (21) does not act at all on the culm of the confluence (A), it is possible to prevent spilling and clogging of the culm by the action of the tine (21), irregularity of the stock origin, and the like.

Further, the leftmost two culm merging lines (B) to be taken into the fuselage are disposed so as to be located to the left of the left outer edge line (C) of the left traveling crawler (2). In addition, at the time of work after turning the body to the left, it is possible to perform stable running without stepping on the crawler trace of the previous stroke at all, and to improve performance especially in wet fields.

In this way, the machine body can be run stably, and the cut culm can be smoothly and reliably conveyed to the threshing unit (4) with extremely simple means.

[0027]

As is apparent from the above embodiment, the present invention is characterized in that the present invention has a six-row raising case (22) and a six-rail star wheel (23) having two pairs of left, middle and right rails. ) And a scraping belt (24), and three culm base transfer chains (26) (2) for transferring left, middle and right two-row grain culms.
8) In the harvester of the 6-row combine combiner provided with (30), the starwheels (23) and (23) for the right two rows are engaged, and the starwheel (23) for the left and middle four rows is combined. The star wheel (23) is divided into two sets of right and left, and it is configured to transmit the driving force of the two middle and right culm base transfer chains (26) and (28), and the leftmost two-row raising case The central junction of (22) is located outside the left outer edge of the left traveling crawler (2), and the left outer edge of the left traveling crawler (2)
(C) as the standard, the leftmost starfoil (2
3) Distribute the star wheel (23) for 5 lines on the right and left and right.
Left and right running blacks approximately equal to the cutting width of 5 rows
5 stars on the right side within the left and right running width of the roller (2)
With the foil (23) arranged , the star foil (2)
Without changing the drive structure of 3), one of the two left-side star wheels (23) can be removed to form a five-row mowing star wheel (23) structure, and the five-row mowing star wheel (23) can be formed. 23) The star wheel (23) structure for 6-row cutting can be formed by adding one star wheel (23) on the left side without significantly changing the structure, and the harvesting work after turning the aircraft to the left is performed. In the above, at least one or more spaces are formed between the crawler (2) trace of the previous process and the current crawler (2), and the wetland performance which is not adversely affected by the crawler (2) trace of the previous process is excellent. Driving, especially for the right 5
Because the left and right traveling crawlers (2) are moved to the mowing traces,
Ensure that the left and right traveling crawlers (2) have sufficient left and right contact width
You can easily prevent the aircraft from tilting left and right, and
Left traveling crawler (2) and left side of the machine for uncut culms
The stalks sufficiently to prevent contact with uncut culms and stepping down.
Checking the rightmost mowing position while preventing
It is possible to easily perform simplification and the like, and to easily improve mobility and driving operability.

[Brief description of the drawings]

FIG. 1 is an explanatory plan view of a reaper.

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

FIG. 3 is a plan view of the same.

FIG. 4 is an explanatory side view of the reaper.

FIG. 5 is an explanatory plan view of a star wheel portion.

FIG. 6 is an explanatory side view of the grain stem scraping unit.

FIG. 7 is an explanatory partial plan view of the reaper.

FIG. 8 is an enlarged explanatory view of the same part.

FIG. 9 is an explanatory view of a cutting blade part.

FIG. 10 is an explanatory view of the same.

FIG. 11 is an explanatory view of the same.

[Explanation of symbols]

 (2) Traveling crawler (22) Raising case (23) Star wheel (24) Scraping belt (26) (28) (30) Tum base transfer chain

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-1-160425 (JP, A) JP-A-2-83724 (JP, U) JP-A-61-148144 (JP, U) JP-A-63 53222 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) A01D 57/00-67/00

Claims (1)

(57) [Claims] 1. A raising case (22) for six lines, a star wheel (23) and a scraping belt (24) for six lines, each pair consisting of left, middle and right two lines, Three culm base transport chains (2
6) In the harvester of the 6-row combine combiner provided with (28) and (30), the star wheel (23) (2
3), and the left and middle four strips of star wheel (2
3) The star wheel (23) is divided into two sets on the left and right sides to transmit the driving force of the two middle and right culm base transfer chains (26) and (28). Pick is located outside the left edge (C) of the case middle merging portion (22) (B) a left travel crawlers (2), the left travel black
Roller (2) with respect to the leftmost edge (C)
Star foil (23) and star wheel (5
3) Distribute and arrange to the left and right, cut width of 5 rows and approximate etc.
The right and left traveling crawlers (2) within the left and right traveling width
A combine harvester, wherein star wheels (23) for five sides are arranged .