JP2001069842A - Dust removing device of combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the suction of culms or pods, etc., ensure the suction force for earth, sand and dust and carry out the prevention of the suction of grain culms or grains and an improvement, etc., in the dust removing ability. SOLUTION: This dust removing device of a combine harvester is obtained by fixing a dust suction and discharge hood 23 on the outside of a dust suction port 28 on the top surface of a feeder house 18, making a suction surface of a dust suction and discharge fan 26 internally installed in the dust suction and discharge hood 23 opposite to the dust suction port 28 and arranging a net unit 29 for preventing culms, etc., from being sucked in the dust suction port 28 in the dust removing device of the combine harvester capable of feeding grain culms reaped with a grain header 17 through the feeder house 18 to a threshing part 4 and equipped with the dust suction and discharged fan 26 for discharging the dust in the feeder house 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine dust removing apparatus for harvesting, for example, rice, wheat, or soybeans.

[0002]

2. Description of the Related Art Conventionally, as shown in Japanese Utility Model Application Laid-Open No. Sho 60-168328, a corn stalk cut by a cereal header is supplied to a threshing unit via a feeder house, and a suction / discharge fan for discharging dust is provided in the feeder house. There is a technology to provide.

[0003]

In the prior art, since the lower portions of the suction and exhaust fan and the suction and exhaust hood are inserted into the inside of the feeder house, the vertical width of the feeder house is not easily reduced, and the upper surface plate of the feeder house is not obtained. A large space is formed between the feeder house and the upper surface of the internal conveyor, and it is not possible to easily improve the dust suction and discharge efficiency of the feeder house. Inability to easily reduce the diameter and rotation, reduce the suction pressure while maintaining the dust suction / discharge function, suck the culm or pods, or lack the suction power of earth and sand dust There is a problem that it is not easy to prevent the cut culm and the grain from being sucked and to improve the dust discharging ability.

[0004] In addition, the dust from the grain header is also sucked into the suction and discharge fan through the feeder house, so that there is a problem that the culm or the grain below the suction and discharge fan is sucked, and a filter for sucking only the dust is provided. By providing such a filter, there is a problem that the dust suction of the filter is reduced due to clogging of the culm and the like, and there is a problem that it is not easy to improve the dust discharging function and the handling workability.

[0005]

According to the present invention, there is provided a combiner having a feeder house provided with a suction / discharge fan for feeding a grain stalk cut by a grain header to a threshing unit via a feeder house and discharging dust. In the dust removing device, a mesh body for fixing a suction / discharge dust hood outside the dust suction port on the upper surface of the feeder house, a suction surface of a dust suction / discharge fan provided in the suction / discharge dust hood, facing the dust suction port, and preventing suction of a culm or the like. A dust suction fan can be installed at the outside of the feeder house so that a maximum outside diameter that is approximately equal to the width of the feeder house can be formed outside the top surface of the feeder house. It is possible to increase the diameter of the suction and exhaust fan and reduce the rotation easily, and to improve the efficiency of suction and exhaust of the feeder house and reduce the suction pressure of the dust suction port. It can be easily performed, prevents suction of culm or pods, secures the suction power of earth and dust, prevents corn culm or grain from being sucked, improves the dust-extraction ability, etc. A dust fan can be provided close to the dust fan to easily secure the dust exhaust force, and the dust of the grain header can be sucked through the feeder house so that the dust suction force of the dust suction fan can be increased. The culm or the grain can be easily prevented from being sucked, and the dust discharging ability can be easily improved.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is a cross-sectional view of a main part, FIG. 2 is a side view of the whole, and FIG. 3 is a plan view of the same, where (1) is a machine frame mounted on a track frame (3) having a traveling crawler (2); (4) a threshing unit equipped with a handling cylinder (5) and a sorting mechanism (6) and mounted on the machine base (1), and (7) a threshing unit (4) which takes out through a fryer (8) A grain tank for storing the grains of (9), a harvesting unit installed in a lower front of the threshing unit (4) via a hydraulic cylinder (10) so as to be able to move up and down,
(11) is a driver's cab provided with a driver's seat (12) and a driving operation unit (13) and fixed to the front of the grain tank (7), and (14) is provided behind the grain tank (7). The engine room (15) is provided with an engine (15), and (16) is a grain carrying auger for taking out grains in the grain tank (7).

The cutting section (9) includes a grain header (17) for taking uncut grain culm, and a harvesting grain culm connected to substantially the rear center of the header (17) to the threshing section (4). A feeder house (18) for feeding
The grain header (17) is provided with an uncut grain culm scraping reel (19), a reciprocating drive type cutting blade (20), and a platform auger (21), and a harvested grain culm to be taken into the header (17) is provided. The feeder house (18) is provided with a feed chain conveyor (22) to supply the feeder house (18) to the threshing unit (4) for threshing.

Further, as shown in FIGS. 1, 4, 5, 6, and 7, a dustproof hood (25) is formed by an upper hood (23) and a side hood (24) connected in an L-shape.
A dust suction hood (25) is provided inside the dust suction hood (25), and a dust hood (25) is attached to the upper surface and the left side surface of the feeder house (18). A dust-absorbing guide plate (2
7) is fixed, and the rear surface of the upper surface of the platform auger (21) is covered with the guide plate (27). A dust suction / discharge fan (26) is provided on the upper surface of the feeder house (18), and the driver seat (12) is provided. Dust generated in the grain header (17) is sucked and discharged by the fan (26) at a position away from the worker, that is, on the left side of the feeder house (18) opposite to the worker.

Further, a dust suction port (28) is opened on the upper surface of the feeder house (18), and the dust suction net (2) is provided in the dust suction port (28).
9), and the fan (26) and the electric motor (30) are fixed inside the upper hood (23) through the air guide plate (31), and the fan (26) is attached to the dust suction port (28). ) Are opposed to each other, the front of the upper hood (23) is connected to the upper surface of the feeder house (18) via a hinge (32), and the rear of the upper hood (23) is connected to the feeder house (18) by bolts (33). It is fixed to the upper surface, and the upper surface hood (23) is attached to the hinge (32) as a fulcrum so as to be openable forward.
(34) for sealing the gap between the upper surface hood (23)
Is provided on the upper surface hood (23), and a dust-removing net (29) is attached substantially horizontally below the dust-absorbing side of the fan (26) to close the dust-absorbing port (28). Is sucked into the fan (26).
9).

As shown in FIG. 5, the feeder house (1)
8) Side hood (24) via hinge (35) on left side
Connect the rear side, and attach the bracket (36) and bolt (3
7), the front side of the side hood (24) is fixed to the left side surface of the feeder house (18), and the side hood (24) is freely opened with the hinge (35) as a fulcrum, and as shown in FIG. ) And the side hood (24) are sealed with a sealing material (38) that closes the gap between the joints.
4).

When harvesting rice or soybeans,
The grain stalks cut by the cutting blade (20) are sent to the front side of the feeder house (18) by the platform auger (21), and the grain is fed to the threshing unit (4) by the chain conveyor (22) via the bottom surface of the feeder house (18). The culm is supplied and the platform auger (2
Particularly, dust is generated particularly at the grain culm inheriting portion between the feeder house (1) and the feeder house (18). However, the dust of the grain header (17) and the feeder house (18) is collected by the suction / discharge fan (26), and the feeder house is collected. (18) Dust is discharged from the upper surface to the lower left side of the feeder house (18) via the outer upper surface and the side hoods (23) (24), and the dust generated in the grain header (17) is discharged to the driver seat (12). ) And the feeder house (18).
It is configured to reduce the amount of dust carried into the threshing unit (4).

As is apparent from the above, the grain header (1
The grain culm cut in step 7) is supplied to the threshing unit (4) via a feeder house (18), and a dust suction / discharge fan (26) for discharging dust is provided in the feeder house (18). , An upper surface hood (23), which is a dust suction / discharge hood, is fixed to the outside of the dust inlet (28) on the upper surface of the feeder house (18), and the upper surface hood (2) is fixed.
The suction surface of the dust suction / discharge fan (26) provided in 3) is opposed to the dust suction port (28), and a dust screen (29), which is a net body for preventing suction of a culm or the like, is provided in the dust suction port (28). And
Feeder house (18)
8) A dust suction and discharge fan (26) is installed so as to form a maximum outer diameter substantially equal to the left and right width, and the upper and lower widths of the feeder house (18) are formed to the minimum dimensions necessary for transporting the cut grain. (26) Increase the diameter and decrease the rotation
By improving the efficiency of sucking and discharging dust of the feeder house (18) and reducing the suction pressure of the dust suction port (28), the suction of culm or pods is prevented, and the suction power of the earth and sand dust is secured, and the culm or grain of cereal culm or grain is reduced. In addition to preventing suction and improving the dust discharging capability, a dust suction fan (26) is brought close to the dust suction port (28) to secure the dust discharging force, and the grain header (17) is fed through the feeder house (18). The suction / discharge force of the suction / discharge fan (26) is increased so that the dust can be sucked, and the suction / discharge fan (2)
6) Prevent culms or grains near the lower part from being sucked in, and improve the dust discharging ability.

[0013] Further, as shown in FIG.
A cutting switch (40), which is turned on in conjunction with the cutting clutch engagement operation of the cutting clutch lever (39) of 3), and a manual switch (41) disposed on the operation section (13), as shown in FIG. And a stop switch (42) that is turned off by the rise of the feeder house (18) and detects the stop of the mowing due to the rise of the mowing part (9). The mowing and manual switches (40) and (41) connected in parallel are provided. On the other hand, a stop switch (42) is connected in series, and each switch (40) is connected.
(41) A power supply battery (43) is connected to the electric motor (30) via (42), and either the cutting or manual switch (40) or (41) is turned on, and the cutting unit (9) is lowered. When the stop switch (42) is kept on, the suction / discharge fan (26) is driven by the motor (30), and the mowing part (9) is raised and stopped by changing the direction at the headland. When the switch (42) is turned off, or the cutting clutch is disengaged by the cutting clutch lever (39) to stop the cutting section (9), and the switches (40) and (41) are turned off, the motor ( 3
0) is turned off, the dust suction / discharge fan (26) is stopped, and the long culm adhering to the lower surface of the dust removal net (29) is dropped by its own weight to prevent clogging of the net (29). .

Further, as described above, the stop switch (42), which is a lifting sensor for automatically turning on and off the suction and discharge fan (26) upon detecting the lifting and lowering of the cutting unit (9), is provided, and the direction is changed at the headland on the field. When the mowing part (9) is lifted and lowered, the dust suction and discharge fan (26) is temporarily stopped, and the stalks or grains adhering to the dust net (29) are dropped off to improve the dust discharging function. In addition, the handling workability is improved.

FIG. 9 shows a modification, in which the dust suction / discharge fan (26) can be easily formed by a sirocco fan, and the dust suction / discharge fan is disposed on the side hood (24) instead of the top hood (23). The fan (26) can be easily installed inside.

[0016]

As is apparent from the above embodiment, according to the present invention, the culm cut by the cereal header (17) is supplied to the threshing unit (4) through the feeder house (18) and the dust is discharged. In the combine dust removing device, wherein a suction / discharge fan (26) is provided in the feeder house (18),
A dust suction / discharge hood (23) is fixed to the outside of the dust suction port (28) on the upper surface of the feeder house (18), and the suction face of a suction / discharge dust fan (26) provided inside the suction / discharge dust hood (23) is connected to the dust suction port (28). ), And a net (29) for preventing suction of culms and the like is provided at the dust suction port (28). A maximum outer diameter substantially equal to the lateral width of the feeder house (18) on the outer side of the upper surface of the feeder house (18). Formable intake and exhaust fan (26)
Can be installed, the vertical width of the feeder house (18) can be formed to the minimum size necessary for transporting the cut grain, and the diameter and rotation of the suction and exhaust fan (26) can be easily reduced, and the feeder can be easily operated. It is possible to easily improve the suction / discharge efficiency of the house (18) and reduce the suction pressure of the dust suction port (28), prevent suction of culms or pods, secure suction power of earth and sand dust, and secure grain culm. Alternatively, it is possible to easily prevent the suction of the grain and to improve the dust discharging ability, and to easily secure the dust discharging force by bringing the dust sucking / discharging fan (26) close to the dust suction port (28), so that the feeder house ( The dust suction force of the suction / discharge fan (26) can be increased so that the dust of the grain header (17) can be sucked through the dust extractor (18), and culms or grains near the lower part of the suction / discharge fan (26) are sucked. Easy to prevent Can, in which it is possible to easily achieve such improvement in dust removing capability.

[Brief description of the drawings]

FIG. 1 is an enlarged side view of a suction / discharge fan unit.

FIG. 2 is an overall side view.

FIG. 3 is a plan view of the same.

FIG. 4 is a side view of the reaper.

FIG. 5 is a plan view of a dust suction / discharge fan unit.

FIG. 6 is a side view of the same.

FIG. 7 is a front view of the same.

FIG. 8 is an electric circuit diagram.

FIG. 9 is a front view showing a modification.

[Explanation of symbols]

 (4) Threshing unit (17) Grain header (18) Feeder house (23) Top hood (dust suction / discharge hood) (26) Dust suction / discharge fan (28) Suction port (29) Dust net (net)

Claims (1)

[Claims] 1. A combine dust removing device, wherein a grain stalk cut by a grain header is supplied to a threshing unit via a feeder house and a dust suction / discharge fan for discharging dust is provided in the feeder house. A dust suction / discharge hood is fixed to the outside of the dust suction port, and a suction surface of a dust suction / discharge fan provided inside the suction / discharge dust hood is opposed to the dust suction port,
A combine dust removing device, wherein a mesh body for preventing suction of culms and the like is provided at a dust suction port.