JP2000300048A - Combine threshing equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject equipment where the occurrence of a grain with a sharp point is reduced to the minimum level and threshing performance can be improved by installing a second threshing drum at the side in front of a first threshing drum in a specific way. SOLUTION: In a threshing equipment for a combine harvester in which a treatment drum 7 is arranged at the side at the rear of a threshing drum 6 so as to parallel it, the drum 7 is extended forward so as for a second threshing drum 38 to be placed at the side in front of the drum 6. When a threshing equipment for a combine harvester is equipped with a fan 35 sucking and discharging disregarded dust in a threshing part, the fan 35 may be installed to the rear of a vertically nearly halfway position between the drum 7 and a shaking separating board placed below the drum 6 and the exit of the fan 35 may be placed below a cutter 13a for discharged straws after threshing treatment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine threshing apparatus in which grain stalks cut in a cutting section are fed to a threshing section for threshing.

[0002]

Conventionally, a crimping net for allowing threshing grain to leak is stretched in the circumferential direction below the handling cylinder, and the grain threshed by the handling cylinder leaks through the crimping net. Grain is sorted by dropping on the swinging sorter below, but the crimped net has a small mesh and poor leakage efficiency, so there is a lot of rotation of grains etc. in the handling room, There were inconveniences such as generation of a large amount of stabs depending on the conditions.

A suction fan for sucking and discharging the dust in the threshing unit has a structure in which a processing cylinder is juxtaposed to the rear side of a handling cylinder. Since it is arranged on the side, it is difficult to suck dust generated at the rear of the swinging sorter and the back of the processing cylinder, the discharge efficiency is low, and the suction capacity is small due to the restriction of the suction width by the processing cylinder. Met.

[0004] Further, in a combine having a structure in which a straw cutting device is provided behind the threshing unit, it is necessary to install a diffusion device or the like for uniformly dispersing the cut straw in the field.

Furthermore, since the suction fan for sucking and discharging the dust in the threshing unit is, for example, only a full-width cross-flow fan, the discharge accuracy cannot be said to be good.

[0006]

SUMMARY OF THE INVENTION Accordingly, the present invention is directed to a combine threshing apparatus in which a processing cylinder is juxtaposed substantially parallel to a rear side of a handling cylinder. By arranging the second handling cylinder on the side, for example, among the grains threshed by the handling cylinder, the grains and bellflowers that do not fall from the crimp net and become in a rotating state are processed by the second handling cylinder, The purpose of this invention is to improve the threshing performance by minimizing the generation of stabs in the handling cylinder.

Further, in a combine threshing apparatus provided with a suction / discharge fan for sucking and discharging the dust in the threshing unit, a processing cylinder disposed at a rear side of the handling cylinder and a swing disposed below the handling cylinder. The dust suction and discharge fan is provided at a position substantially intermediate between the upper and lower parts of the sorting board, and the dust generated in the swinging sorter and the processing cylinder is efficiently sucked and discharged to the outside. In order to improve the suction and discharge capability of the fan.

Further, in a combine threshing apparatus provided with a suction / discharge fan for suctioning and discharging dust in the threshing unit,
The outlet of the suction and exhaust fan faces the lower part of the waste cutting device that cuts the waste after threshing, and evenly spreads the cut waste without the need for installing a separate straw diffusion device. And the like can be easily performed.

Further, in a combine threshing apparatus provided with a handling cylinder and an oscillating sorter, a full width type first suction and exhaust fan for sucking and discharging dust behind the handling cylinder, and a dust exhauster behind the oscillating sorter. And a full-width type second suction / discharge fan that sucks and discharges the dust, and the first and second suction / discharge fans separate the dust from the handling drum and the swinging / selecting plate having a particularly high dust generation rate in the threshing unit. By efficiently sucking the dust, it is possible to prevent dust from forming in the threshing unit and to reliably discharge the dust outside the machine.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. Fig. 1 is an overall side view of the combine, Fig. 2
Is a plan view of the same, in which (1) is a track frame on which a traveling crawler (2) is mounted, (3) is a machine frame installed on the track frame (1), and (4) is a grain culm conveying member. A threshing unit, which is a threshing machine in which a feed chain (5) is stretched on the left side and a handling cylinder (6) and a 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 that moves the mowing section (8) up and down through a mowing frame (12), and (13) is Straw processing unit facing the end of straw chain (14), (15)
Is a grain tank for bringing in the grains from the threshing unit (4) through a fryer (16), (17) is a discharge auger for carrying out the grains of the tank (15) outside the machine, and (18) is A driving cabin including a driving operation unit (19) and a driver's seat (20);
An engine (21) is provided below the driving cabin (18), and is configured to continuously cut and threat grain culms.

As shown in FIGS. 3 and 4, (2)
2) is a handling room in which an axial-flow-type handling drum (6) that is suspended in the longitudinal direction of the body is installed, (23) is a handling opening for inserting a grain stalk into the handling room (22), and (24) is a handling opening. A crimp net that is stretched under the handling room (22), and (25) is the crimp net (24)
A swinging sorter for supporting the front end downward so as to be swingable in the front-rear direction; (26) and (27) are crimping nets (24);
Feeder pans (28) arranged rearward of the rear end of the rear feed pan (27), and (29) arranged below the chaff sheave (28). Glen sieve to be arranged, (30) is a dust fan which is a pre-fan which feeds sorting wind between upper and lower feed pans (26) and (27), (31) is between chaff sheave (28) and Glen sheave (29) And a main blower (32), which is a main blower for feeding the sorting wind below the grain sieve (29), and a first conveyor for communicating kernels (16) to the grain tank (15) to take out grains into the grain tank (15); 33)
Is a No. 2 reduction conveyor, which is a No. 2 reduction device.
4) through the feed pan (2) in front of the sorter (25).
6) No. 2 conveyor returning upward, (35) a suction / discharge fan which is a cross flow fan arranged above the rear end of the sorting board (25), and (36) shuts off the fan (35) above And a fourth gutter for carrying out and guiding the waste straw. The grain that has been threshed by the handling cylinder (6) and the processing cylinder (7) is rocked by a rocking sorter (2).
In step 5), only the sieved granules are taken out to the grain tank (15), and the scraps are discharged outside from the third port (37) at the rear end of the sorting machine (25). (14)
Through a straw cutter (13a), which is a straw cutting device, and discharges it outside the machine.

As shown in FIGS. 4 to 6, the processing cylinder (7) is substantially parallel to the rear right side of the handling cylinder (6) in plan view.
Further, the processing cylinder (6) is disposed so as to be wrapped at a lower portion thereof in a side view, and the front end of the processing cylinder (7) is extended forward so as to extend between the front end of the processing cylinder (7) and the front end of the processing cylinder (6). A second handling cylinder (38) having substantially the same diameter (smaller than the handling cylinder (6)) as the processing cylinder (7) is integrally formed with the processing cylinder (7), and the handling chamber (22) of the handling cylinder (6) and the second The second handling chamber (39) of the handling cylinder (38) is connected via an inlet (40) in front of the handling cylinder (6), and the handling chamber (41) of the handling chamber (22) and the processing cylinder (7). Is communicated through an inlet (42) on the rear side of the handling cylinder (6) to remove threshing and dust in the handling chamber (22) from the second handling chamber (39) and the processing cylinder chamber (41). ).

The handling cylinder (6), the processing cylinder (7), and the second handling cylinder (38) are rotated in the same rotational direction, which is clockwise when viewed from the front, so that the handling cylinder (6) and the second handling cylinder (38). Tooth around the circumference of (4
3) The (44) is placed on the outer periphery of the processing cylinder (7) by a spiral (4).
5), a crimping net (46) smaller than the crimping net (24) of the handling cylinder (6) on the lower circumferential side of the second handling cylinder (38), and a lower periphery of the processing cylinder (7). A corn cave (47) is provided on each side.

The teeth (43) and (44) are spirally arranged at substantially equal intervals on the outer periphery of the handling cylinder (6) and the second handling cylinder (38) to form lead angles (θ1) (θ2). ), And the toothing (44) of the second cylinder (38) is obliquely implanted along the lead angle (θ2) so as to improve the uptake of processed materials such as grains and bellflowers. Make up.

[0015] Of the grains and bellflowers threshed in the cylinder (6), the processed material which has not leaked from the crimping net (24) is taken from the inlet (40) through the second cylinder (38). And the liquid is allowed to leak from the crimping net (46), while the processed material that does not leak and is kept in a portable state is processed as it is by the processing cylinder (7) on the rear side to perform second reduction and the like. .

As shown in FIG. 7, the suction and exhaust fan (3
5) is provided at substantially the same length as the expected width of the threshing lower part, and the outlet (49) of the fan casing (48) of the fan (35) is provided.
The wind direction guide (50) provided on the lower side faces the lower front of the straw cutter (13a), and the cut straw that is cut and dropped by the straw cutter (13a) is almost uniformly rearward by the wind blown from the fan (35). It is configured to be diffused. The wind direction guide (50) has a fan casing (48) swingably supported at one end side via a fulcrum shaft (51), and a slot (52) at the other end side via an adjustment bolt (53) for adjusting the fan direction. The position is fixed to the casing (48) so as to be adjustable, and the direction of the wind direction guide (50) is changeable, so that the spreading direction of the straw can be adjusted to prevent the straw from being applied to uncut culms. It is composed.

As shown in FIGS. 7, 8, and 9, a binding machine (not shown) mounted above the straw cutter (13a) and behind the cutter (13a) and the straw processing unit (13). And a switching guide rod (54) for switching between the two. A switching guide rod (54) is provided behind the straw guide rod (14a) for guiding the straw to the straw chain (14). The guide rod (5) is vertically connected to a slide member (56) fixed to the threshing machine body or the cutter casing (55).
4) The vertical axis (54a) of the vertical axis (54) is supported, and the lower end of the vertical axis (54) is connected to a downward switching wire (59) via a compression spring (57) and a swing link (58). A hollow dust collecting portion (60) is provided at each of the upper and lower ends of the inner peripheral surface of the member (56) fitted with the longitudinal axis portion (54a), and a substantially vertical length of a central portion is approximately half in plan view. An arcuate rotation guide groove (61) is formed, and the roll pin (62) of the longitudinal axis (54a) is engaged with the guide groove (61), and the compression spring ( When the guide rod (54) is moved downward against the roll pin (6)
By the guide of the guide groove (61) engaging with 2), the orientation of the horizontal guide portion (54b) at the upper end of the guide rod (54) is simultaneously changed from the front-back direction to the left-right direction, and the cutter (13) is changed.
a) With the guide rod (54) in the horizontal position above, the waste of the straw chain (14) is dropped in the direction of the cutter (13a) to switch from the binding machine to the cutter (13a). . In addition, when the straw guide rod (14a) is switched to the cutter (13a) side, the straw shutter (13b) thereunder is simultaneously opened.

As shown in FIGS. 10 and 11, a vertical auger (6) is provided between the lower auger (63) and the discharge auger (17) of the tank (15).
4) Equipped with a rotation motor (65) and detachably fixed to the plate (66) after threshing so that the upper end side of the vertical auger (64) can be freely rotated via a half-shaped receiving metal (67). A half-fixed fixed arm (68) is provided for supporting, and a discharge auger (17) is provided rotatably inside or outside the machine around the vertical auger (64).
4) A thin flange (6) is provided around the pipe (64a).
9) is fixed, and a seal member (poliple) is provided between the upper end surface of the receiving metal (67) and the lower surface of the flange (69).
When the vertical auger (64) is rotated, the seal member (70) is also rotated integrally with the flange (69), so that the outer circumference of the pipe (64a) and the inner circumference of the receiving metal (67) are interposed. The configuration is such that dust or the like is prevented from entering the gap or dust or the like entering the gap is scraped out when the seal member (70) rotates.

FIG. 12 shows a dust suction / discharge fan (35).
This shows an example of a configuration in which a) is provided substantially at the intermediate height position rear of the processing cylinder (7) and the swinging sorter (25) in a side view, and dust generated without the processing chamber (41) is removed. ) Threshing by efficiently sucking dust generated from the rear exhaust port (71) and from the swinging sorter (25) into the processing cylinder (7) and the fan (35a) behind the sorter (25). The effect of the processing cylinder (7) is improved as compared with the conventional structure in which the fan (35) is wrapped around the rear side of the processing cylinder (7) and the fan (35) is wrapped, while improving the dust exhaust effect in the section (4). The suction width of the fan (35a) is provided at the rear of the processing cylinder (7) to the full of the threshing width so as to improve the suction and discharge capability of the fan (35a).

FIG. 13 and FIG. 14 show a second embodiment of a conventional cross-flow fan formed behind a conventional dust suction and discharge fan (35).
This is an example of a configuration in which a dust suction / discharge fan (72) is provided, and dust is discharged from the threshing unit (4) by two dust suction / discharge fans (35), (72). ), The suction port (73) is opened to the front upper side of the fan (35), and the dust on the rear end side of the handling cylinder (6) is not sent to the fourth gutter (36). While being sucked into the fan casing (48) through the suction port (73), the dust discharged from the discharge port (49) of the fan casing (48) and the dust generated in the swinging sorter (25) are separated by the sorter (25). ) The second suction / discharge fan behind the rear end (7
The suction opening (74) of (2) is sucked, and the straw diffusion device (75) at the rear of the suction opening (74) and discharged downward.

The second suction / discharge fan (72) is provided on a cutter casing (55) to which the straw cutter (13a) and the diffusion device (75) are attached, thereby simplifying a mounting structure and a drive system, and further, the suction / discharge dust fan (72). 35) is provided on the threshing unit (4) side to absorb the dust from the handling drum (6) having a large amount of dust, thereby improving the effect of discharging the dust in the threshing unit (4). I have.

[0022]

As is apparent from the above embodiments, the present invention relates to a combine threshing device in which a processing cylinder (7) is arranged substantially parallel to the rear side of the handling cylinder (6). ) Is extended forward and a second side is provided on the front side of the handling cylinder (6).
Since the handling cylinder (38) is provided, for example, the crimped net (24) of the grains and the like that are threshed by the handling cylinder (6)
Grains, bellflowers, etc., which do not fall and become in a rotating state, are processed by the second handling cylinder (38), and the generation of stabs on the handling cylinder (6) is reduced to a minimum, thereby improving threshing performance. Is what you can do.

Further, in a combine threshing apparatus provided with a suction and discharge fan (35) for sucking and discharging the dust in the threshing unit (4), the processing cylinder (7) disposed on the rear side of the handling cylinder (6). ) And a swing sorter (2) disposed below the handling cylinder (6).
5) The suction and exhaust fan (3)
5), the dust generated in the swinging sorter (25) and the processing drum (7) can be efficiently sucked and discharged to the outside, and the dust suction and discharge fan (35) is provided in the full threshing width. It is possible to improve the suction and discharge capability of the fan (35).

Further, in a combine threshing device provided with a suction / discharge fan (35) for sucking and discharging the dust in the threshing unit (4), a waste cutting device (13a) for cutting the straw after threshing is provided. Since the outlet of the dust suction / discharge fan (35) faces downward, uniform diffusion of the cut waste can be easily performed without the necessity of installing a separate straw diffusion device or the like. Is what you can do.

Further, the handling cylinder (6) and the swinging sorter (2)
5), a full-width first suction / discharge fan (35) for sucking and discharging the dust behind the handling cylinder (6), and suction of the dust behind the swinging sorter (25) in the combine threshing apparatus provided with (5). Since it is provided with a full width type second suction / discharge fan (72) for discharging, the handling drum (6) and the rocking sorter (25), which have a particularly high dust generation rate, in the threshing unit (4) The first and second dust suction and discharge fans (35) and (72) individually and efficiently suck the dust, thereby preventing dust from being formed in the threshing unit (4) and ensuring reliable dust discharge. External release is possible.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine.

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

FIG. 3 is a sectional side view of a threshing unit.

FIG. 4 is a sectional front view of a threshing unit.

FIG. 5 is a sectional front view of a threshing unit.

FIG. 6 is an explanatory plan view of a threshing unit.

FIG. 7 is an explanatory diagram of a dust suction / discharge fan unit.

FIG. 8 is an explanatory side view of the straw switching guide section.

FIG. 9 is an explanatory plan view of a straw switching guide section.

FIG. 10 is an explanatory side view of a vertical auger part.

FIG. 11 is an explanatory view of supporting a vertical auger part.

FIG. 12 is a modified explanatory view of a dust suction / discharge fan.

FIG. 13 is an explanatory diagram illustrating a modification of the suction / discharge fan.

FIG. 14 is an explanatory diagram illustrating a modification of the suction / discharge fan.

[Explanation of symbols]

 (6) Handling cylinder (7) Processing cylinder (13a) Straw cutter (straw cutting device) (35) Dust suction / discharge fan (38) Second handling cylinder (49) Exit (72) Second suction / discharge fan

 ──────────────────────────────────────────────────続 き Continued on the front page F-term (reference) 2B094 AA07 AA08 AA14 AB02 AB07 AC02 AC03 AC14 AE01 AF01 AH01 AH05 EA05 HA01 JA10 JB09 2B095 AA01 AA02 AA07 AA12 BA03 BA11 BA21 BA25 BA30 CA03 EA02 EA04 EB13 EB02 FA27

Claims (4)

[Claims] 1. A threshing device for a combine in which processing cylinders are arranged substantially parallel to the rear side of a handling cylinder, wherein the processing cylinder is extended forward and a second handling cylinder is disposed on a front side of the handling cylinder. A threshing device for combine harvesters. 2. A combine threshing device provided with a suction / discharge fan for sucking and discharging dust in a threshing unit, wherein a processing cylinder is disposed at a rear side of the handling cylinder and a swing is disposed below the handling cylinder. A threshing device for a combine, characterized in that the dust suction and discharge fan is provided at a position substantially at the middle of an upper and lower part of a rear of a sorting board. 3. A combine threshing device provided with a dust suction and discharge fan for sucking and discharging dust in a threshing unit, wherein an outlet of the dust suction and discharge fan is provided below a straw cutting device for cutting the straw after threshing. A threshing device for combine harvesters. 4. A combine threshing device provided with a handling cylinder and a swing sorter, wherein a full-width type first suction / discharge fan for sucking and discharging dust behind the handle cylinder and a dust remover behind the swing sorter are provided. A threshing device for a combine, comprising a full-width second suction / discharge fan for suction / discharge.