JPH088586Y2 - Combine harvester - Google Patents

Description

[Detailed Description of the Invention] "Industrial application field" The present invention relates to a combine harvesting device in which a harvesting unit is supported in the forward direction of a threshing machine body via a harvesting lifting fulcrum shaft so as to be movable up and down.

[Prior Art] Conventionally, as shown in Japanese Patent Laid-Open No. 61-185120, a mowing unit is provided in front of a threshing unit via a lifting fulcrum shaft so as to be able to move up and down, and the traveling crawler driving force of a mission case is branched to There is a technology that outputs the driving force from the mowing input shaft to each part of the mowing section by outputting it to the mowing input shaft of the fulcrum shaft.

[Problems to be solved by the invention] In the above-mentioned conventional technique, when the drive input side of the grain culm transport mechanism for feeding the slaughter grain culm to the threshing unit is mounted on the harvesting input shaft, the drive input of the grain stalk transport mechanism is used. The layout of the parts and the vertical axis of the lifting fulcrum are mutually restricted, and it is not possible to easily consider the support position of the grain culm transporting mechanism with respect to the grain culm receiving side structure of the threshing section or the front and rear length of the reaping section. When it is not possible to easily consider the lifting fulcrum shaft support position, and the drive input of the grain culm raising mechanism that raises the uncut grain is raised from the reaping transmission section on the bottom side of the reaping section, the transmission of the bottom of the reaping section is performed. There is a problem that the structure cannot be easily simplified, a frame gap or the like on the bottom surface of the mowing portion cannot be formed large, and the accumulation of mud or straw waste cannot be easily prevented.

[Means for Solving the Problems] Therefore, according to the present invention, the cutting unit is provided in the front of the threshing unit so as to be able to move up and down through the lifting fulcrum shaft, and the traveling crawler driving force of the mission case is branched to cut the fulcrum shaft. In a combine harvesting device for outputting to an input shaft, a harvesting shaft is pivotally supported on a shaft case integrally fixed to the fulcrum shaft, and the harvesting input shaft and the harvesting shaft extending substantially in parallel are connected to each other, and uncut grain And a grain culm transport mechanism for feeding the cut grain culm to the threshing section, which are connected to the harvesting shaft.

[Operation] Therefore, the shaft case is provided, and the mowing shaft is attached substantially parallel to the mowing input shaft of the lifting fulcrum shaft, and the mowing shaft is inserted in the middle of the connection between the drive input part of the grain-carrying mechanism and the mowing input shaft. Therefore, it is possible to arrange the drive input section of the grain culm transport mechanism and the lifting fulcrum shaft so as to be almost unconstrained in structure, and to connect the drive input section of the grain culm raising mechanism to the mowing shaft to a high place of the mowing section. Since they are arranged, the transmission structure on the bottom side of the mowing section can be easily simplified, and the frame installation gap on the bottom surface of the mowing section can be made large to easily prevent the accumulation of mud or straw debris.

[Embodiment] An embodiment of the present invention will be described below in detail with reference to the drawings.

Fig. 1 is a front explanatory view of the mowing part, Fig. 2 is an overall side view of the combine, and Fig. 3 is a plan view of the combine, in which (1) is equipped with traveling crawlers (2) and (2) on the left and right. A track frame, (3) a machine frame supported by the track frame (1), (4) a threshing section in which a feed chain (5) is stretched on the left side and a handling cylinder (6) is installed, (7) Is a reaper having a cutting blade (8) and a grain culm transport mechanism (9) and supported in front of the threshing unit (4) via a pivot shaft (10) and a lifting cylinder (11), and (12) is the threshing unit. The straw cutting section provided at the rear of the section (4), (13) is a paddy tank for storing the grains taken out from the threshing section (4) through the fried cylinder (14), and (15) is each section of the combine. The engine to be driven, (16) is a driver's cab equipped with a driver's seat (17) and a driving control unit (18), and it continuously cuts grain culms and threshes them. It is configured.

As shown in FIGS. 4 to 5, the grain culm transport mechanism (9) is a pair of left and right raising cases (20) (20) for raising the harvested culms by the raising tines (19), and the cutting blade. (8)
A pair of left and right star wheels (21) (21) for scratching the culm side of the grain stalks cut by and a vertical transport chain for transporting the scraped grain culverts between the feed start ends of the feed chains (5). (22), an upper transport chain (23) for guiding and transporting the tip side of the middle culm transported in the chain (22), and the chain (23)
The upper and lower front tip transporting rotors (24) (25) are disposed above the feed start end of the chain, and the rear tip transporting rotary body (26) is disposed above the feed end of the chain (23). The conveying mechanism (9) is configured to be driven by the driving force of the reaping input shaft (27) which is internally provided with the same axis as the rotating fulcrum shaft (10).

The reaping input shaft (27) has a gear meshing selection type hydraulic transmission (HST) (28) and a traveling transmission case (29).
The tuned output shaft (30) is linked with the reaping input pulley (31), which is the reaping input section, via the pulley (32), the belt (33), and the reaping clutch (34) which is the tension pulley.
The output shaft (15a) of the engine (15) has pulleys (35) (3
6) and the transmission mechanism (28) of the transmission case (29), which interlocks the input shaft (29a) via the belt (37), changes the speed of the drive sprocket (38) of the traveling crawler (2). The cutting speed is changed in synchronization.

The reaping input shaft (27) is connected to the upper first reaping shaft (39) through the sprockets (40) (41) and the chain (42), and the lower second reaping shaft (43) is connected to the sprockets (44) (45). And a chain (46) for interlocking with each other, and the drive sprockets (22) on the feed end side of the transfer chains (22) (23).
a) (23a) and the rear tip transporting rotary body (26) are attached to the drive transport shaft (47) on the upper left side of the mowing part (7) and the upper drive shaft (48) of the right raising case (20). The left and right ends of the first reaping shaft (39) are interlockingly connected to each other via a pair of bevel gears (49) (50).

Further, the second cutting shaft (43) is attached to a wheel drive shaft (53) that drives the cutting blade (8) through the cutting blade clutch (51) and the left star wheel (21) through a pair of worm gears (52). ) Is interlocked via a pair of bevel gears (54), and a pair of bevel gears (56) (57) and a vertical raising shaft (58) are attached to the upper raising drive shaft (55) of the left raising case (20). The second mowing shaft (43) is interlockingly connected via the above.

Still further, the front tip transporting rotating bodies (24) (25) are driven sprocket (23) on the feed start end side of the upper transport chain (23).
b) The driven carrier shaft (59) for mounting is integrally supported to drive the same.

A rotary fulcrum shaft (10) into which the reaping input shaft (27) is inserted, the sprocket (40) (42). (44) (4
5) and chains (42). The chain case (60) in which the (46) is installed is integrally connected, and the first cutting shaft (39) is also connected.
Insert the cutting shaft case (61) into the chain case (6
(1) is integrally connected to the front side of the upper end of the chain case (6
0) mission case (29) and left running crawler (2)
A rotation fulcrum shaft (10), which is disposed in a tilted manner between the upper and right sides of the upper end of the chain case (60), has a bearing base (62) and a bearing (63) at the front end of the machine base (3). Rotatably supported via the fulcrum shaft (1
The case (60) (61) and the mowing frame (64) are integrally rotated around 0) to raise and lower the mowing section (7). As is clear from the above,
In front of the threshing unit (4), a pivoting fulcrum shaft (10) that is an elevating fulcrum shaft
The harvesting section (7) is provided so as to be able to move up and down, and the driving force of the traveling crawler (2) of the mission case (29) is branched to be output to the harvesting input shaft (27) of the fulcrum shaft (10). In the mowing device, the first mowing shaft (39), which is a mowing shaft, is axially supported by a mowing shaft case (61), which is a shaft case that is integrally fixed to the fulcrum shaft (10), and extends substantially in parallel. In addition to connecting the shaft (27) and the mowing shaft (39), a raising tine (19) that is a grain culm raising mechanism that erects the uncut grain culm, and a grain that feeds the cut grain culm to the threshing unit (4). A vertical transfer chain (22) and an upper transfer chain (23), which are culm transfer mechanisms, are connected to the mowing shaft (39).

The mission case (29) is arranged between the left and right traveling crawlers (2) and (2) so that the input shaft (29a) protrudes to the right and the mowing output shaft (30) protrudes to the left. And the drive force from the reaping output shaft (30) is input to approximately the center of the reaper (7), while the reaping input shaft (27) is provided at the upper rear of the mission case (29). Cutting blade (8) and star wheel (21) in front of the case (29)
The lower second mowing shaft (43) for driving the engine is interlockingly connected with the thin width (t) chain case (60), and the case (60) and the case (2) are pulled up to the left.
It is provided in the shape of a side-view lap between 0) and is configured to maximize the front-rear length and the left-right width of the mowing part (7).

The present embodiment is configured as described above, and the drive input of the mowing section (7) is obtained from substantially the center of the mowing section (7), and the cutting blade (8) and the star wheel (21) are driven. Since the chain case (60) is formed to have a thin width (t) and is provided between the mission case (29) and the left pull-up case (20) in a side view lap shape, the mission case (2) is particularly preferable.
9) It is possible to miniaturize the combine machine by satisfactorily reducing the front-rear length and the left-right width of the mowing section (7) in the traveling and mowing speed tuning system that obtains the mowing input from
Even if the mission case (29) has the hydraulic speed change mechanism (28), the shift case is right, or the input / output is performed on both the left and right sides, the miniaturization can be achieved without any trouble.

[Advantages of the Invention] As is apparent from the above-described embodiments, the present invention provides the mowing section (7) to the front of the threshing section (4) via the elevating fulcrum shaft (10) so as to be movable up and down, and the mission case (29). In a combine harvesting device for branching the driving force of the traveling crawler (2) and outputting it to the harvesting input shaft (27) of the fulcrum shaft (10), a shaft case (61) integrally fixed to the fulcrum shaft (10) is provided. While supporting the reaping shaft (39) and connecting the reaping input shaft (27) and the reaping shaft (39) extending substantially parallel to each other, a grain culm raising mechanism (19) for erecting an uncut grain culm, Grain culm transport mechanism (2 that feeds cut culm to threshing section (4)
2) (23) is connected to the mowing shaft (39),
The shaft case (61) is provided, and the mowing shaft (39) is attached substantially parallel to the mowing input shaft (27) of the elevating and lowering fulcrum shaft (10), and the mowing shafts of the grain transfer mechanism (22) (23) and the mowing shaft are mounted. Since the reaping shaft (39) is interposed during the connection of the input shaft (27), the drive input portion of the grain culm transport mechanism (22) and the lifting fulcrum shaft can be arranged so that there is almost no restriction in structure. Since the drive input part of the grain culm raising mechanism (19) is connected to the mowing shaft (39) and arranged at a high place of the mowing part (7), simplification of the transmission structure on the bottom side of the mowing part (7) is facilitated. It can be carried out, and a large frame installation space or the like on the bottom surface of the reaping part (7) can be formed to easily prevent the accumulation of mud or straw waste.

[Brief description of drawings]

FIG. 1 is a front view of the mowing unit, FIG. 2 is an overall side view of the combine, FIG. 3 is a plan view of the combine, FIG. 4 is a side view of the mowing drive unit, and FIG. Is. (2) Crawler (7) Mowing section (10) fulcrum shaft (27) …… Mowing input shaft (29) …… Mission case (30) …… Output shaft (60) …… Chain case

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshinori Kirihata 1-32 Chayamachi, Kita-ku, Osaka City, Osaka Prefecture Yanmar Agricultural Machinery Co., Ltd. (56) Reference JP-A-61-185120 (JP, A)

Claims (1)

[Scope of utility model registration request] 1. A mowing section (7) is provided in front of a threshing section (4) via a lifting fulcrum shaft (10) so as to be able to move up and down, and a driving force of a traveling crawler (2) of a mission case (29) is branched. In a combine harvesting device that outputs to the harvesting input shaft (27) of the fulcrum shaft (10), the harvesting shaft (39) is axially supported by a shaft case (61) integrally fixed to the fulcrum shaft (10) and is substantially parallel. The mowing input shaft (27) and the mowing shaft (39)
And a grain culm raising mechanism (19) that raises the uncut grain culm and a grain culm transport mechanism (22) (23) that feeds the slashed grain culm to the threshing unit (4). 39) A harvester for combine harvesters, which is connected to