JPH06319356A - Reaping device of combine - Google Patents

Abstract

PURPOSE:To simplify and strengthen the structure for supporting the driving shaft of a raking carrier such as star wheel. CONSTITUTION:The structure provided with a raking carrier for raking grain culms cut with a cutting blade in the cutting device of a combine is characterized by extending a support pipe 47 from a cutting frame pipe 12a facing the front end of a cutting section in parallel to the travel direction of the frame to the rear part, and bending the support pipe 47 so that the support pipe 47 is placed at a place near the driving shaft 42 of a raking carrier to support a driven shaft 42 with the driving shaft 47.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine for cutting five rows, for example, in which grain culms cut by a cutting blade are scraped by a scraping carrier such as a star wheel and a scraping belt and conveyed to the threshing section. And a harvesting device for the combine.

[0002]

2. Description of the Related Art In this type of support structure for a drive unit for a scraping carrier, there is a means for supporting the scraping carrier from above and below on a mowing frame.

[0003]

However, in the case of such means, not only the structure becomes complicated, but also the grain culm being conveyed is wound around the supporting member for supporting the scraping conveying body. There was a flaw.

[0004]

SUMMARY OF THE INVENTION Therefore, according to the present invention, in a structure provided with a scraping carrier for scraping grain culms cut by a cutting blade, from a slicing frame that faces the front end of the slicing portion in parallel with the machine traveling direction. While extending the support pipe to the rear,
By bending so that it is positioned near the drive shaft of the scraping carrier and supporting the drive shaft on the pipe, it is possible to compact without any inconvenience such as winding a grain stalk around a support pipe that can also be used as a guide for the culm. The scraping carrier can be supported. In particular, by supporting the wheel drive shaft of the star wheel, which constitutes the scraping carrier, on the support pipe between the star wheel and the lower transfer chain above this, the star wheel and the lower transfer chain are vertically balanced approximately in the middle between them. It is well supported and can be firmly supported even if a large reaction force is applied to them.

[0005]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is an explanatory plan view of a grain-culm scraping unit, FIG. 2 is an overall side view of a combine, and FIG. 3 is a plan view of the combine, where (1) 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 mowing part (8) has a raising tine (23) for raising an uncut grain culm which is taken in through a sward plate (22). A case (24) and a star wheel (25) which is a scraping carrier for scraping the culm side and the tip side of the raised grain culm.
And a scraping belt (26), a cutting blade (9) for cutting the culm side at the time of scraping, and an upper right portion for conveying the culm side of the two right-sided grain culms after the cutting toward the left diagonal rearward direction. Transport tine (28a)
The right upper part carrier (28) having the above, and the culm side and the tip side of the grain culm of the third line on the right side are merged in the vicinity of the feeding middle position of the rear right lower part carrier chain (27) and the upper right part carrier (28). A central upper transport body (30) having a central lower transport chain (29) and a central upper transport tine (30a), and a left side 2
At the lower right transport chain (2
7) and an upper left carrier (32) having a lower left carrier chain (31) and an upper left carrier tine (32a) which merge near the feed end position of the upper right carrier (28), and the lower right carrier chain (32). 27) of the vertical transfer chain (33) for transferring and transferring the culm side of the grain culm for 5 rows that joins the feed end to the feed start end of the feed chain (5), and the upper right part carrier (28). Each transfer chain (2
7) Before and after the head of the grain culm conveyed by (33) is conveyed in the direction of the threshing inlet, the tip tine (34a) (3a)
Front and rear tip transporters (34) (35) having 5a)
And the upper part of the center and the upper left part carrier (30) (32), and the ears of the grain stems conveyed by the respective carrier chains (29) (31). Central and left tip transporters (36) (37) having central and left tip transport tines (36a) (37a) to be merged near the feed end position, the upper right transporter (28) and vertical transport chain (33) And an auxiliary transport chain (38) which is provided at a substantially central position vertically between the feeding end portions of and to allow the feed chain (5) to inherit the grain culms 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) (32) are passed through and merged with the vertical transport chain (33) and supplied to the threshing section (4) for threshing treatment.

The central and left lower transfer chains (29) (31), the upper transfer units (30) (32), and the tip transfer units (36) (37) are driven by the mowing unit (8). This is performed by the output shaft (40) of the left drive case (39). The left upper part and the tip carrier (32) (37) are drivingly connected to the output shaft (40), and the output shaft (4
0) via a drive sprocket (41) to the lower left transport chain (31) and the leftmost star wheel (2).
5a) and the same drive shaft (42) of the scraping belt (26a)
Are interlockingly connected via a driven sprocket (43), and these star wheel (25a) and scraping belt (26a) are connected.
Is configured to be driven.

As shown in FIG. 7, the drive shaft (42) is
The intermediate driven sprocket (43) is fixed, the drive pulley (44) of the scraping belt (26a) is fixed to the upper end, and the star wheel (25a) is fixed to the lower end so that the driven sprocket (43) can be detachably fixed. And star wheel (25
A drive pipe (42) between a) is rotatably supported by a receiving barrel (46) via a bearing (45), and a supporting pipe (47) for connecting the receiving barrel (46) to the mowing frame (12). ) Is fixedly supported by brackets (48).

The support pipe (47) is connected to the leftmost grass plate (22), and is fixed to the fixed mounting plate (49) of the cutting frame pipe (12a) parallel to the moving direction of the machine body. ) Is fixed, the rear end side is extended obliquely upward, and the intermediate portion is bent inward to approach the drive shaft (42) as shown in plan view of FIG. 31) is provided so as to extend substantially parallel to the conveying action surface of the pipe (31), and the receiving cylinder (4) is provided at the bent portion (47a) of the pipe (47).
The drive shaft (42) is held via 6). When the support pipe (47) is close to the drive shaft (42), the casing (4) around the drive shaft (42) is provided.
2a).

The leftmost star wheel (25a)
The second star wheel (25b) from the leftmost side and the third star wheel (25c) from the leftmost side are sequentially meshed and connected to the foil (25b), and these three strips of foil (25a) are connected. (25b) (25c) is driven, and the drive sprocket (52) of the central lower transport chain (29) is interlockingly connected to the drive shaft (51) of the third star wheel (25c) from the leftmost side. The transport chain (2
9) Driven sprocket (53) sprocket shaft (5
4) The upper part of the center and the tip carrier (30) (36) are interlockingly connected to each other, and the second and third wheels (2) from the leftmost side are rotated by the rotation of the leftmost star wheel (25a).
5b) and (25c) rotation, and the central lower transfer chain (2
9) and each of the upper and tip carrier bodies (30, 36) are driven.

As shown in FIG. 8, the central lower transfer chain (2
9) is a support frame (56) which is provided with a tension roller (55) on the side opposite to the transport action surface and which supports the second and third star wheels (25b) (25c) from the leftmost side between the centers. The tension arm (57) of the tension roller (55) is swingably connected to the tension roller (55), and the tension arm (57) is separated from the chain (29) to the opposite side against the tension spring (58), so that the right side surface (56a) of the support frame (56). When the roller (55) is brought into contact with the roller, it is provided so as to prevent further movement, and the supporting frame (56) is also used as a stopper of the tension roller (55).

This embodiment is constructed as described above, and the star wheels (25a) (25b) for the left three threads are formed.
By the meshing of (25c), the foils (25a) (25b) (25c) and the scraping belt (2
6), the lower transfer chain (29) at the center, and the upper and tip transfer bodies (30) (36) can be driven in series, and these drive systems can be simplified.

Further, in supporting the drive shaft (42) of the leftmost star wheel (25a) with respect to the support pipe (47), the star wheel (25a) and the lower part of the carrier are conveyed in the longitudinal direction of the pipe (47) in a side view. The chain (31) and the driven sprocket (43) are supported so as to extend substantially parallel to each other,
A compact support structure can be achieved, and the rear end side of the support pipe (47) in plan view is provided in the chain case of the chain (31) with the rear end side of the lower transfer chain (31) running substantially parallel to the side. By setting the state, it is possible to prevent inconvenience such as winding of the grain culm around the pipe (47).

FIG. 9 shows another modified structure of the support pipe (47). In the above embodiment, the drive shaft (42) is used.
I showed an example of a structure that was bent so as to bypass the back of
In this configuration, the support pipe (47A) is connected to the drive shaft (4
The pipe (4) is bent so that the front of (2) is detoured.
7A) is configured so that it can also be used as a culm guide.

FIG. 10 shows a hollow casing (shaft 42) in which the driven sprocket (43) of the lower transfer chain (31) and the drive pulley (44) of the take-in belt (26) are not formed in the shaft (42). 59) shows an example of a structure in which the driven shaft (42a) is fixed to the driven sprocket (43) and the lid surface (59a).
A casing (59) having a sprocket (4)
3) Fixed on the upper side surface of the casing (59), the drive pulley (44) is detachably fixed to the lid surface (59a) of the casing (59) through the bolt (60), and the drive shaft (42a) is shortened. At the same time, the casing (59) is made possible by using a pipe having a large outer shape, so that the structure can be made compact and lightweight.

In FIG. 11, the driven sprocket (43) integrally fixed to the drive shaft (42a) and the cylindrical casing (59a) are fixed and the casing (59) is fixed.
The drive pulley (44) is further fixed to (a), and the sprocket (43) and the drive pulley (44) are integrated so that the structure can be made more compact.

[0017]

As is apparent from the above-described embodiments, the present invention is a structure provided with a scraping carrier (25) for scraping grain culms cut by a cutting blade (9), and has a cutting section (8). A support pipe (47) is extended rearward from a mowing frame (12) facing the front end in parallel with the machine traveling direction, and is bent so as to be positioned in the vicinity of the drive shaft (42) of the take-in carrier (25). Since the drive shaft (42) is supported by the pipe (47), the scraping conveyer can be compacted without any inconvenience such as winding a grain culm around the support pipe (47) that can also be used as a guide for the culm. (25) can be supported, and the transport performance of the harvested culm can be improved by a simple structure. In particular, by supporting the wheel drive shaft (42) of the star wheel (25) constituting the scraping carrier by the support pipe (47) between the star wheel (25) and the lower transfer chain (31) above this, The star wheel (25) and the lower transport chain (31) are supported substantially vertically between them in a well-balanced manner, and even if a large reaction force is applied thereto, they can be firmly supported, which is a remarkable effect.

[Brief description of drawings]

FIG. 1 is a plan view of a grain culm scraping section.

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 diagram of a star wheel unit.

FIG. 8 is an explanatory plan view of a lower central transport chain portion.

FIG. 9 is an explanatory diagram showing an example of a modified structure of a lower left transport chain section.

FIG. 10 is an explanatory diagram showing an example of a modified structure of a take-in belt driving pulley section.

FIG. 11 is an explanatory diagram showing an example of a modified structure of a take-in belt driving pulley section.

[Explanation of symbols]

 (8) Mowing part (9) Mowing blade (12) Mowing frame (25) Star wheel (carrying carrier) (31) Lower transport chain (42) Drive shaft (47) Support pipe

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tomoyoshi Hirose 1-32, Chaya-cho, Kita-ku, Osaka City Yanmar Agricultural Machinery Co., Ltd. Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Atsushi Terashima 1-32, Chayacho, Kita-ku, Osaka City Yanmar Agricultural Machinery Co., Ltd.

Claims (2)

[Claims] 1. A structure provided with a scraping carrier for scraping grain stalks cut by a cutting blade, wherein a support pipe is extended rearward from a cutting frame that faces the front end of the cutting unit in parallel with the machine traveling direction. A combine harvesting device, characterized in that it is configured to be bent so as to be positioned in the vicinity of the drive shaft of the scraping carrier, and to support the drive shaft on the pipe. 2. The combine drive according to claim 1, wherein the wheel drive shaft of the star wheel forming the scraping carrier is supported by a support pipe between the star wheel and the lower transfer chain above the star wheel. Reaper.