JP2001169653A - Threshing device of combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To contrive an improvement, etc., in conveying performances of the waste straw ear tip side with a waste straw tine (11). SOLUTION: This threshing device of a combine harvester is obtained by installing a right guide surface (68d) made of a synthetic resin of a fourth grade trough (68) in a conveying passage on the waste straw ear tip side in the combine harvester equipped with a grain tank (17) on the right side of a threshing part (4) provided with a threshing cylinder (6), waste straw cutters (37) and (38) arranged on the rear side of the threshing part (4) and the grain tank (17), a waste straw chain (10) installed between a feeding starting end of a feed chain (5) on the left side of the threshing part (4) and the waste straw cutters (37) and (38), a waste straw tineon the right side therefor and further the fourth gradetrough (68) provided on the feeding starting end side of thewaste straw chain (10) and the tine (11).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method in which a stem of a harvested grain culm is clamped by a feed chain and moved in parallel with a handle cylinder axis.
The present invention relates to a combine threshing device that supplies only ears to a handling room to thresh, and receives thresh after threshing from a feed chain to a discharge chain, and discharges the waste from a waste processing unit attached to the rear of the threshing unit to the outside of the machine. .

[0002]

2. Description of the Related Art Conventionally, a fourth gutter arranged in a straw conveying path of a straw conveying chain has been formed by joining a plurality of iron plates.

[0003]

According to the above prior art, when the straw conveying path is formed toward the diagonally right rear, the shape of the fourth gutter right guide surface on the tip side of the straw ear cannot be easily simplified. For example, when the joint portion of the iron plate is formed on the right guide surface, for example, a thin and strong waist of the straw tip is caught by the joint portion of the iron plate, so that troubles such as breaking of the culm or disturbing the transport posture are likely to occur. There is a problem that it is not easy to improve the transport function of the straw spike tip side by the straw tine having a smaller clamping force than the straw chain.

[0004]

According to the present invention, a grain tank is provided on the right side of the threshing section provided with the handling cylinder, a straw cutter is provided on the threshing section and on the rear side of the grain tank, and the left side of the threshing section is provided on the threshing section. A straw chain is provided between the feed chain feed end and the straw cutter, a straw tine is provided substantially parallel to the right of the straw chain, and a fourth chain is provided on the straw chain in front of the straw cutter and the tine feed start end side. In the combine, a synthetic resin right guide surface of the fourth gutter is provided in the discharge path on the discharge side of the discharge tine of the discharge tine, so that the thin and strong waist tip is caught on the right guide surface during the transfer. It is possible to easily prevent the breakage of the straw in the fourth gutter portion or to reduce the turbulence of the transport posture, and to easily improve the transport function of the drainage tip side by the straw tine.

[0005] In addition, a synthetic resin right guide surface of a fourth gutter is provided in a continuous portion between a straw discharge section in the rear of the handling room in which the handling cylinder is provided and a right side of the straw cutter in the rear of the grain tank. It is possible to easily prevent the thin and stiff waist tip from catching on the right guideway during transport, and reduce the culm of the straw at the fourth gutter or the disturbance of the transport posture. In addition, it is possible to easily improve the transport function of the straw ear tip side by the straw tine.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is a sectional side view of the fourth gutter portion, FIG. 2 is an overall side view of the combine, and FIG. 3 is a plan view of the combine. In FIG. 1, (1) is a track frame on which a traveling crawler (2) is mounted. ) Is a machine frame installed on the track frame (1), (4) is a threshing unit which stretches a feed chain (5) to the left side and has a built-in handling cylinder (6) and a processing cylinder (7);
(8) a mowing unit including a cutting blade and a grain stalk transport mechanism,
(9) is attached to the rear side of the threshing unit (4), and is a straw processing unit that faces the end of the straw chain (10) and the straw tine (11). (12) is a driver's seat (13) and a driving operation. Department (1
A driver's cab provided with 4), an engine section (15) provided at the front right side of the machine chassis (3), and an engine (16) provided therein;
Numeral (17) is a kernel tank disposed behind the engine unit (15) to store the kernel from the threshing unit (4), and is configured to continuously perform harvesting and threshing operations.

Also, as shown in FIGS. 4 to 6, (1)
9) is a handling room in which an axial-flow-type handling cylinder (6) that is suspended in the longitudinal direction of the fuselage is installed, (20) is a handling port for inserting grain culms into the handling room (19), and (21) is a handling port. A crimp net stretched under the handling room (19), and a crimp net (22) communicates with the handling room (19) through an opening (23) to form a crimp net (24) on the left outside of the processing cylinder (7). A processing cylinder chamber to be stretched, (25) is a swing sorter that swingably supports in the front-rear direction via a swing link (25a) and a guide roller (25b), and is disposed below the crimping net (21). Feed pan (2
6), a chiff sheave (28) positioned below the rear part of the crimping net (21), and a Glen sheave (29) disposed below the chaff sheave (28) to constitute the swing sorter (25). A sieving line (30) is integrally attached behind the swinging sorter (25).

Further, in the figure, (32) is the sorter (2)
5) Karino, which feeds the sorting wind in the direction, (33) is the first conveyor that takes out the grains into the grain tank (17) via the fryer (31), and (34) returns the second product Tube (34a)
A second conveyor for returning to the front of the oscillating sorter (25) through (2), (35) is opposed to the dust outlet (22a) at the rear end of the processing drum chamber (22) above the sieving line (30). A suction / discharge dust fan that faces the suction port (36). Grain tank (1
7), the waste straw is sent to a straw processing unit (9) having a straw cutter (37) (38) via a straw chain (10) and a tine (11), and is cut and discharged outside the machine. It is configured as follows.

As shown in FIG. 7, power is transmitted from an output shaft (40) of the engine (16) to an input shaft (43) of an HST (42) mounted on a traveling mission (41), and the left and right outputs of the transmission (41) are provided. Left and right driving sprocket shafts (44) (4) of the left and right traveling crawlers (2) (2)
4) is driving.

A threshing input shaft (45) from an output shaft of the engine (16) via a threshing clutch (not shown).
And a counter shaft (46) for operatively transmitting power to the threshing input shaft (45), and transmitting power from the counter shaft (47) to the handling cylinder shaft (48) and the processing cylinder shaft (49), respectively. I have.

Power is transmitted from the threshing input shaft (45) to the Karamin shaft (50), and power is transmitted from the Karamin shaft (50) to a crankshaft (51) for driving an oscillating sorter (25). An output pulley (52) for the mowing part (8) is provided on the crankshaft (51).

A first conveyor shaft (53), a second conveyor shaft (54), and a counter shaft (55) are connected to the Karamin shaft (50) in an interlocking manner, and a counter shaft (55).
A fan shaft (56) and a high-speed cutter shaft (57) are interlocked and connected to the high-speed cutter shaft (57). The low-speed cutter shaft (58) is connected to the drive sprocket shaft (59) of the feed chain (5). Power is transmitted to.

The first conveyor shaft (53) is connected to a conveyor shaft (61) of a fry conveyor (60) in an interlocking manner, and the second conveyor shaft (54) is connected to a conveyor shaft (62) of a reduction conveyor (62). 63) and the driving sprocket shaft (6) at the front of the straw chain (10) via the counter shaft (64) from the rear end of the handle shaft (48).
Power is transmitted to 5), and a driving sprocket (67) of the straw tine (11) is provided on a driven sprocket shaft (66) at the rear of the straw chain (10).

As shown also in FIGS. 1 and 8, a fourth gutter (68) disposed behind the handling room (19) in the threshing unit (4) and below the feed start end of the straw chain (10). Is integrally molded with a synthetic resin material such as polypropylene, for example, and a front guide surface (68a) which is steeply inclined rearward and upward at the substantially right and left center of the fourth gutter (68) and gently inclined rearward and upward at the left front side. An inclined front guide surface (68b) and these front guide surfaces (68b).
a) (68b) A substantially flat rear guide surface (68) connected to the rear side.
c) and a right guide surface (68d) connected to the right side of the central front-rear guide surfaces (68a) (68c) are resin-integrated, and the fourth gutter (68) has a substantially mountain-shaped cross-sectional shape in side view. ), The falling grain from the straw is quickly flowed down to the swinging sorter (25) below the front side, and the straw on the 4th gutter (68) is also quickly outboarded. It is configured to guide discharge. In addition, the fourth gutter (6
By integrating resin 8), there is no gap in the production, so that the blowing of the sorting wind from the traditional Karino (32) is also eliminated.

As is clear from the above, a grain tank (17) is provided on the right side of the threshing unit (4) where the handling cylinder (6) is provided,
A straw cutter (37) (38) is provided behind the threshing unit (4) and the grain tank (17), and a feed chain (5) on the left side of the threshing unit (4) and a feed end and a straw cutter (37) ( 38)
A straw chain (10) is provided between the straw chains (10).
In the combine where a straw tine (11) is provided substantially parallel to the right side and a straw chain (10) in front of a straw cutter (37) (38) and a fourth gutter (68) on the tine (11) feed start end side. A right guide surface (68d) made of a synthetic resin of a fourth gutter (68) is provided on the discharge path of the discharge end of the discharge tine (11). Also, a straw discharge section at the rear of the handling chamber (19) in which the handling cylinder (6) is installed, and a straw cutter (3) at the rear of the grain tank (17).
7) (38) The synthetic resin right guide surface (68d) of the fourth gutter (68) is provided at the corner of the L-shaped connecting portion between the right portions. The thin and strong waist tip is prevented from getting caught on the right guide surface (68d) during transport, and the culm of the straw is cut off at the fourth gutter (68) or the transport posture is disturbed. In addition, the improvement of the transport function of the straw ear tip side by the straw tine (11) is performed.

As shown in FIG. 9 to FIG. 11, a spout (69) at the upper end of the fryer cylinder (31) facing the inside of the grain tank (17) is formed in a substantially F-shaped cross section in a side view. Things
Around the semicircle at the upper end of the fryer cylinder (31), it is fixed so as to surround the inclined bottom plate (69a) of the lower part of the spout (69) to the right (downward toward the center of the tank (17)). The upper end of the fry conveyor shaft (61) is projected above the upper top plate (69b), and a bolt (7) is attached to the upper side surface of the top plate (61b).
The upper end of the conveyor shaft (61) is rotatably supported via a bearing (72) on a bearing plate (71) fixed via the bearing (0).

As shown in FIG. 11, a bearing (7) provided between the conveyor shaft (61) and the bearing plate (71) is provided.
2) and a collar (73) between the inner circumference of the top plate portion (69b) and the bottom plate portion (69b) and the conveyor shaft (61).
The seal member (74) interposes a circular plate-shaped seal member (74) to prevent dust and the like in the tank (17) from entering the bearing (72), and reduces the number of parts. are doing.

Further, the outlet (69) is provided with a bottom plate (6).
9a) and the vertical side plate (69c) between the top plate (69b)
Are provided at the upper end of the conveyor shaft (66) on the left side of the input blade (75), and the bottom plate (69a) and the top plate (69)
b) before and after (corner portion) the vertical side plate portion (69c),
A guide plate (76) is fixed in a divergent shape in plan view, and the guide plate (76) is used to throw the spout (3)
It is configured to guide the grain in 1a) and to reinforce the outlet body (69). Further, the outlet body (69) promotes discharge of paddy from the outlet (31a) into the tank (17) by the inclined bottom plate portion (69a), and at the same time, connects the bottom plate portion (69a) and the side plate portion (69c). The gap (T) between the corner and the inner wall surface of the tank (17) is made larger than that of the conventional U-shape to enable good discharge without clogging the gap (T) with grains. Things.

As shown in FIGS. 12 to 14, the grain tank (17) and the two lower rice discharge cylinders (77) are integrally molded from a synthetic resin material. A block-shaped shutter mounting portion (78) for making the outer shape larger than the cylinder (77) is integrally formed substantially in the middle, and the shutter mounting portion (78) has a central portion larger than the outer width of the cylinder (77). Open the shutter insertion hole (79)
A shutter (8) having an opening (80) in the insertion hole (79).
1) is slidably provided, and the opening (80) and the shutter (81), which are larger than the inner shape of the cylinder (77), ensure that there is no paddy residue and paddy leakage when the shutter (81) is opened and closed. The shutter (81) is configured to open and close.

The shutter (81) is also molded from a synthetic resin material. One end of the shutter (81) is formed in a handle (81a) having a large thickness and a large width, and the handle (8) is formed.
A handle hole (82) is opened in 1a), and the opening (80) is opened in the other end of the shutter (81), and the other end of the shutter (81) is bent through a hinge member (83). A restricting member (84) having the same thickness as the shutter (81) is freely attached, and the restricting member (84) is bent so as to always overlap with the shutter (81) and a bolt (85) is formed.
To form a stopper when the shutter (81) is pulled out (opened), and a handle (81a) for increasing the thickness and width when the shutter (81) is pushed in (closed). Is also used as a stopper to reduce the number of parts.

Further, a cover plate (88) is suspended in a free state via a rotation fulcrum member (87) at the rear end of the straw chain cover (86) which covers the upper end of the straw chain (10) at the feed end side. Lowered when not working or with a straw cutter (37) (3
In the straw cutting operation according to 8), the straw chain (10) and the like are concealed by the cover plate (88) so as not to be seen from the outside, while the switching plate (8) is placed above the straw chain (10) such as when binding.
When the straw is sent out to the rear of the chain (10) after being covered by the chain (9), the cover (8) is moved by the straw conveying force of the chain (10).
8) is configured to be pushed open.

The present embodiment is constructed as described above, and the fourth gutter (6) conventionally formed by combining a plurality of parts is used.
8) is an integrated molded article made of synthetic resin,
The number of parts can be reduced, processing can be facilitated, and processing cost can be reduced. In addition, due to the good sliding properties of the synthetic resin and the chevron shape when viewed from the side, grains falling on the fourth gutter (48) can be reduced. It is possible to promptly promote the flow down to the swing sorting machine (25) side without stagnation, and also to smoothly promote the movement of the waste straw in the outward direction. (32)
It is possible to stably maintain the sorting performance and protect the environment without blowing out the sorting wind from the gap.

[0023]

As is apparent from the above embodiment, the present invention provides a threshing section (4) provided with a handling drum (6), a grain tank (17) provided on the right side, and a threshing section (4) and a grain tank. (1
7) A straw cutter (37) (38) is provided on the rear side, and a straw chain (10) is provided between the threshing unit (4) left feed chain (5) feeding end and the straw cutter (37) (38). ) Is provided, and the straw tine (1) is substantially parallel to the right side of the straw chain (10).
1), and in the combine where a straw cutter (37) (38) is provided with a straw chain (10) in front and a fourth gutter (68) on the tine (11) feed start end side, the straw tine (1) is provided.
A synthetic resin right guide surface (68d) of the fourth gutter (68) is provided in the waste straw ear tip side transfer path of 1), and a thin and strong waist tip is being transported to the right guide surface (68d). Can be easily prevented from being caught, and it is possible to reduce breakage of the culm of the straw in the fourth gutter (68) portion or disturbance of the transporting posture, etc.
Thus, it is possible to easily improve, for example, the function of transporting the end of the straw ear.

A handling room (1) in which a handling cylinder (6) is provided.
9) A synthetic resin right guide surface of a fourth gutter (68) is provided in a continuous portion between the rear straw discharge section and the grain straw (17) rear straw cutter (37) (38) right side. 68d), which makes it easy to prevent the thin and strong waist tip from being caught on the right guide surface (68d) during transportation, and to cut the culm of the straw at the fourth gutter (68). In addition, it is possible to reduce the disturbance of the transfer posture, and to easily improve the transfer function of the straw tip side by the straw tine (11).

[Brief description of the drawings]

FIG. 1 is an explanatory side view of a fourth gutter.

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

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

FIG. 4 is an explanatory sectional view of a threshing unit.

FIG. 5 is an explanatory plan view of a threshing unit.

FIG. 6 is an explanatory front view of the combine.

FIG. 7 is an explanatory diagram of a drive system.

FIG. 8 is an explanatory plan view of a fourth gutter portion.

FIG. 9 is an explanatory front view of the mouthpiece of the deep-fried grain.

FIG. 10 is an explanatory plan view of the mouthpiece of the deep-fried grain.

FIG. 11 is an explanatory view of a bearing portion of the fry conveyor.

FIG. 12 is an explanatory side view of the grain tank unit.

FIG. 13 is an explanatory bottom view of the grain tank unit.

FIG. 14 is an explanatory diagram of a shutter unit.

[Explanation of symbols]

 (4) Threshing unit (6) Handle cylinder (10) Drainage chain (11) Drainage tine (17) Grain tank (19) Handling room (37) (38) Drainage cutter (68) Fourth gutter (68d) ) Right guideway

Claims (2)

[Claims] 1. A grain tank is provided on the right side of a threshing section provided with a handling cylinder, a straw cutter is provided on the threshing section and a rear side of the grain tank, and a feed chain feed terminal on the left side of the threshing section and a straw cutter are provided. In the combine where a straw chain is provided, a straw tine is provided substantially parallel to the right side of the straw chain, and a fourth drain gutter is provided in front of the straw cutter and a tine feed start end, A combine threshing device characterized in that a synthetic resin right guide surface of the fourth gutter is provided on the side transport path. 2. A synthetic resin right guide surface of a fourth gutter is provided in a continuous portion between a straw discharge section behind a handling chamber in which a handling cylinder is provided and a right side of a straw cutter behind a grain tank. The threshing apparatus for a combine according to claim 1, wherein