JP2001309722A - Separating apparatus for combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shaking separating apparatus capable of controlling an air flow in a strong state of pressure loss without reducing the number of revolutions of a cross flow fan in the separating apparatus for a combine harvester. SOLUTION: In this separating apparatus for a combine harvester, the cross flow fan attached to the separating apparatus is equipped with a tongue part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine, and more particularly, to a sorter for sorting hulls and the like after threshing, which is disposed below a handling cylinder.

[0002]

2. Description of the Related Art Conventionally, in a combine sorting apparatus,
A sorting device that sorts grains and the like using a cross flow fan instead of Karamin is known. In such a sorting device,
In most cases, the airflow of the crossflow fan was controlled by changing the rotation speed of the fan.

[0003]

However, in such a sorting apparatus, there is a problem that when the rotation speed of the cross flow fan is reduced in order to adjust the air flow device, a pressure loss occurs in the fan. Therefore, an object of the present invention is to provide a sorting device capable of adjusting the air volume in a state in which the pressure loss is strong without lowering the rotation speed of the cross flow fan.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides the following combine sorting apparatus. That is, in the combine sorting apparatus, a tongue portion is provided in a cross flow fan provided in the sorting apparatus. The tongue provided on the cross flow fan is provided movably, and is a combine sorting device. Furthermore, the tongue provided in the cross flow fan is provided so as to be movable in the body advancing direction. Still further, the tongue provided in the cross flow fan is configured so that the angle can be freely changed in the width direction of the fuselage. And the displacement amount of the movable or variable tongue provided in the cross flow fan is automatically controlled by the amount of grain, and is a combine sorting device. .

[0005]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of a combine provided with a pair of left and right traveling crawlers as a traveling section, FIG. 2 is a plan view thereof, and FIG. 3 is a side view of a threshing section of the combine. The combine (A) is equipped with a threshing device (3) on the left side in the traveling direction of the combine machine (1) having a pair of right and left traveling crawlers (2), and a single-acting device is also provided at the front of the combine. A cutting pretreatment device (4) that can be raised and lowered by a hydraulic cylinder (6) of a type is arranged. A clipper-type cutting blade device (5) is disposed below the lower frame of the pre-cutting device (4), and a grain stem raising device (8) for six rows is disposed in front of the cutting blade device. Between the (8) and the front end of the feed chain (7) in the threshing device (3), cereal stalk transporting devices (8a) and (8b) are arranged, and in the lower front part of the cereal stalk transporting device (8a), an algae ( 8c) protrudes.

In the threshing device (3), the rotation axis of the handling cylinder (11) in the handling chamber (10) in the handling chamber (10) is arranged along the traveling direction of the combine, and the feed chain () is arranged at the left end of the handling chamber (10). In 7), the spikes of the cereal culm conveyed while being clamped at the root are threshed on the lower surface side of the handling drum (11). The processing chamber (12) below the handling chamber (10) has a dust outlet (13).
A crimping net (14) is stretched except for the object to be processed, and an object to be processed that has leaked from the crimping net (14) is slid forward and backward along the traveling direction of the combine under the crimping net (14).
Feed pan (16), (17) of front and rear pair in 5)
And undergoes rocking sorting at the chaff sheave (18). At this time, the object to be processed is subjected to the wind separation by the Glen pan (21) and the separation by the pre-fan (20) which blows the lower cross flow fan (19) and the pair of feed pans (16) and (17). The particles fall from the net (22) in the direction of the receiving gutter (23) as sizing. A processing cylinder (29) is arranged on the side of the handling chamber (10), and a part of the workpiece is sent toward the processing cylinder (29) on the rear side of the handling cylinder (11), and further threshing. It is processed.

The second processed material dropped from the rear chaff sheave of the swinging sorting mechanism (15) is received by a second receiving gutter (24), and is passed through the screw conveyor (24a) and the second reducing conveyor (25). And discharged on the sieve line (26) for re-sorting. Grains sized by the rocking and wind sorting are collected in a grain tank (9) via a screw conveyor (23a) of the first receiving gutter (23), and discharged auger (28). Is transported out of the machine.
The dust in the processing chamber (12) is exhausted outside the machine by the suction fan (30), and the straw inherited at the rear end of the feed chain (7) is long through the straw chain (31). Drained behind the combine or straw cutter (33)
After being cut short as appropriate, it is discharged. Note that the code (3
2) is a driver's cab arranged on the front right side of the combine, and (34) is a steering handle disposed in the driver's cab.

In the combine having the above structure, the tongue (4) for adjusting the air volume of the cross flow fan (19) is used.
3) will be described with reference to FIG. Cross flow fan (19)
Of the casing (41) has a curved surface along the outer shape of the cross flow fan (19), and an air duct (42) extends rearward of the fuselage. A tongue (43) having a width corresponding to the entire width of the cross flow fan (19) in the machine width direction is provided substantially on the axial extension of the cross flow fan (19). The tongue (43) is formed of a plate-like body whose tip is inclined rearward of the fuselage.
It is connected to the operation lever (45) provided in 2). With such a configuration, the tongue (43) is slid via the operation lever (45), and the cross flow fan (19) is moved.
And the distance between the tongue (43) is adjusted.

Similarly, a tongue (43a) provided rearward of the cross flow fan (19) on the substantially axial extension will be described with reference to FIG. A drive shaft (43c) directly connected to a motor (M) is screwed to a bracket (43b) of a tongue (43a) formed of a plate-like body having a tip portion inclined rearward of the fuselage to drive the motor (M). The rotation of the shaft (43c) causes the tongue (43)
a) is slid in the advancing direction of the fuselage and the cross flow fan (1)
9) and the tongue (43a) is set to have an interval. A thickness detecting sensor will be described as an example of a means for setting the distance between the tongue portion (43a) and the cross flow fan (19) in the tongue portion (43a) configured as described above. As shown in FIG. 3, chaff sieve (18)
A thickness detection sensor (S) for detecting the thickness of the above processed material is attached to a holding member (17a) of the receiving net (17). The sensor (S) has been disclosed by the present applicant in Japanese Patent Application Laid-Open No. 11-178431,
It comprises a sensor bar (S ₁ ) that oscillates around the horizontal axis and a detection unit (not shown) that detects the swing angle of the sensor bar (S ₁ ). Then, the motor (M) is rotated based on the output signal of the sensor detector, and the tongue (43a) is slid to the set position. Although the angle sensor has been described as an example of the processing amount detection sensor, an ultrasonic sensor or a vehicle speed sensor of the body may be used instead. Also, the tongue (43)
May be configured as shown in FIG. That is, the movable plate (43k) of the tongue (43) formed by a plate-like body inclined rearward of the fuselage is hinged, and the tilt angle of the movable plate (43k) is variably configured. The movable plate (43k) is connected to an operation lever via an outer wire or the like, and is operated by an operator.

With the above configuration, the operator operates the operation lever (45) according to the processing amount while maintaining the rotation speed of the cross flow fan (19) constant in a high rotation range, and the cross flow fan (19). 19) Manually set the interval between the tongue (43) and the controller (not shown) to set the optimum air volume suitable for the thickness of the processed material based on the thickness detection sensor (S) of the processed grain. Is calculated, the calculated value is recognized, and the distance between the tongue (43a) and the cross flow fan (19) is automatically set, so that the air volume of the sorting wind can be adjusted in real time. In this case, the cross flow fan (1
If the distance between 9) and the tongue (43) or (43a) is small, the airflow increases, while if the distance is widened, the airflow decreases,
An appropriate air volume can always be obtained in a state where the pressure loss is strong.

The casing (51) covering the cross flow fan (19) may be constructed as shown in FIG. In a casing (51) having a curved surface along the outer shape of the cross flow fan (19), a shutter (52) is provided along the outer periphery of the casing (51). The shutter (52) is configured to be slidable along guides (not shown) on the left and right sides of the casing (51). The shutter (52) covers the entire casing (51) in accordance with the processing amount from the state (c) to the intermediate position ( It is configured such that it can be set at any position through b) to the release state (a). Note that the slide of the shutter (52) is configured to be set at a desired position by providing an outer wire, a grip portion, or the like below the shutter (52).

Further, the casing (61) may be configured as shown in FIG. A cover (62) is hingedly connected to an upper edge portion of the casing (61), and is configured to be displaceable within a predetermined angle around the connection portion. The cover (6
The displacement adjustment of 2) is performed by a grip (not shown) provided at the front part of the cover (62) or by rotating the axis of the hinge connection.

As described above, the shutter (52) or the cover (6) provided on the casing (51) or (61)
The displacement 2) can be set at a predetermined position according to the processing amount, and an appropriate amount of air can be obtained. That is, when the processing amount increases and the amount of the sorting wind decreases, the shutter (52) is slid or the cover (62) is opened and closed to change the opening of the casing (52) or (62). As a result, an appropriate amount of air can be obtained.

[0014]

As is apparent from the above embodiments, in the combine sorting apparatus according to the first aspect,
Since the tongue is provided on the cross flow fan provided in the sorting device, the cross flow fan can always be operated at a constant rotation speed in a high rotation range. According to the second aspect, since the tongue provided on the cross flow fan is movably provided, the selection air volume can be adjusted. Further, according to the third aspect, the tongue provided on the cross flow fan is provided so as to be movable in the fuselage advancing direction, so that an average sorted air volume can be obtained. Further, according to the fourth aspect, the tongue provided on the cross flow fan is configured to be able to change the angle in the machine body width direction, so that the air volume can be adjusted with a simple configuration. According to the fifth aspect, the movable or variable tongue provided in the cross flow fan is automatically controlled by the grain amount, so that the air volume can be adjusted in real time, and the sorting performance can be improved.

[Brief description of the drawings]

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

FIG. 2 is a plan view of the same.

FIG. 3 is a side view of a threshing unit of the combine.

FIG. 4 is an explanatory view of a tongue.

FIG. 5 is an explanatory view of another tongue.

FIG. 6 is a diagram illustrating a modification of the tongue.

FIG. 7 is an explanatory view of a casing.

FIG. 8 shows another embodiment of the casing.

[Explanation of symbols]

 A Combine M Motor S Sensor 4 Threshing unit 15 Swing sorting mechanism 19 Cross-flow fan 41 Casing 43 Tongue

Claims (5)

[Claims] 1. A combine sorting apparatus, wherein a tongue is provided on a cross-flow fan provided in the sorting apparatus. 2. The combine sorting apparatus according to claim 1, wherein a tongue provided on the cross flow fan is movably provided. 3. The combine sorting apparatus according to claim 1, wherein a tongue provided on the cross flow fan is provided so as to be movable in a body traveling direction. 4. The combine sorting apparatus according to claim 1, wherein the tongue provided on the cross flow fan is configured to be able to change the angle in the machine width direction. 5. The combine according to claim 2, wherein the amount of displacement of a movable or variable tongue provided on the cross flow fan is automatically controlled by a grain amount. Sorting device.