JP2005080567A - Unloading auger in combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To form a hygienic operation environment, to improve selection performance of the grains by sucking and removing the waste dust included in the interior of the grains, and to enable the direction of the discharge of waste dust to be changed to the direction in which no trouble in the surrounding is caused by considering wind direction or the like by installing a discharging direction-changing device of the waste dust when unloading grains in a reaping and threshing operation by a combine harvester. <P>SOLUTION: The combine harvester has a grain tank mounted on a frame, and a waste dust-discharging device installed in a tip unloading port of the unloading auger for unloading the grains in the grain tank to the exterior of the machine. The changing device for changing the discharging direction is also installed in the waste dust-discharging device. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a combine equipped with a drain tank that mounts a grain tank on a machine base and discharges grains in the grain tank to the outside of the machine.

2. Description of the Related Art Conventionally, in this type of grain tank combine, a technique is known in which a dust tank is directly provided with a dust removing device in order to remove dust in the grain tank containing threshing grains (for example, Patent Document 1). reference.).
However, there was no technique for taking dust countermeasures when discharging the grain from the Glen tank to the loading platform of the transport vehicle outside the machine by the discharge auger.
JP 2001-258384 A (pages 3 to 5, FIGS. 2 to 4, 8 to 10 and 14)

However, in the above-mentioned conventional technology, when the grain is transported from the grain tank to the loading platform of the transport vehicle outside the machine by the transfer auger by the discharge auger, the grains are subjected to friction with each other. Even if a part of the dust is previously eliminated by a dust removal device, a large amount of dust is newly generated during the grain transfer in the discharge auger, and the grain is discharged from the discharge auger outlet when the grain is discharged. It spouts with.
Therefore, not only the worker spreads to the surroundings and deteriorates the working environment, but also depending on the direction of the wind, there is a case where a great deal of inconvenience is caused to those who are not directly related to the work. And there existed a subject that this tendency was so remarkable that the dryness of a grain was high.
An object of the present invention is to improve the above-described conventional problems.

  In order to achieve the above object, in the present invention, in a combine equipped with a Glen tank mounted on a machine base and having a discharge auger for discharging grains in the Glen tank to the outside of the machine, a dust is formed at the tip discharge port of the discharge auger. The first feature is that a discharge device is provided.

  A second feature is that a switching device for switching the discharge direction is provided in the dust discharge device.

When discharging grain in harvesting and threshing work with a combine, it can not only create a sanitary work environment, but also improve the sorting performance of the grain by sucking and removing dust contained in the grain. Contribute.
In addition, since the dust discharge direction switching device is provided, it is possible to switch the dust discharge in a direction that does not hinder the surroundings in consideration of the wind direction and the like.

  In a combine equipped with a glen tank on the machine base and a discharge auger that discharges the grains in the glen tank to the outside of the machine, a dust discharge device with a dust discharge direction switching device is provided at the tip discharge port of the discharge auger. Prepared.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is an overall side view of a combine that employs the present invention. Like a general combine, 1 is a traveling machine of the combine, 2 is a machine base provided at the lower part, and 3 is a pretreatment provided at the front part. , 4 is a driving operation part provided on the front side (traveling direction right side) of the traveling machine body 1, 5 is a driving seat, 6 is an engine part extending from the lower side of the driving seat 5 to the right side, and 7 is a rear part thereof. In this case, a large grain tank for storing harvested grains mounted on the machine base 2 is equipped with a cutter device 8 and the like for waste disposal at the rear.

Further, a long discharge auger 9 (a transfer spiral 12 described later in the interior) is disposed on the rear side (right side) of the Glen tank 7 to discharge the grains in the Glen tank 7 to the loading platform of the transport vehicle outside the machine. A vertical cylinder 9a is provided.
The discharge auger 9 is bent at the upper end portion of the vertical cylinder 9a and extends from the rear one side toward the diagonally forward direction (left side) of the traveling machine body 1, but the upper end portion of the vertical cylinder 9a. The connecting portion is provided with a cylinder 9b so that the tip side of the connecting portion can be moved to an arbitrary position when the grain is discharged.

  That is, by operating the auger operating lever 10, the discharge auger 9 can move to the vertical and horizontal positions from the upper end of the vertical cylinder 9a by the operation of the cylinder 9b. After setting the above, by pressing the discharge clutch switch 11, the transfer spiral 12 (see FIGS. 2 and 3 described later) stored in the discharge auger 9 starts rotating, and the grains stored in the Glen tank 7 are It is transferred by a spiral rotation and discharged to a desired position outside the machine.

And if discharge of a grain is completed, rotation of transfer spiral 12 will stop by pushing discharge clutch switch 11 again.
Next, when the automatic storage button 13 is pressed, the discharge auger 9 is moved to and stored in a storage position set in advance by a microcomputer (not shown) or the like. Here, 14 is an auger receiver.
In addition, although mentioned later (refer FIG.2, 3), 9c is the discharge port of the grain provided in the discharge auger 9 tip side, 15 shows the bellows by which direction switching is possible as a switching apparatus. Reference numeral 16 below the traveling machine body 1 is a traveling device, which is composed of a pair of left and right crawlers.

Next, FIG. 2 is a sectional side view of the main part.
That is, in the drawing, a fan 20 with a motor 19 facing the inlet of the bellows 15 constituting the dust discharging device D is attached to one side upper part of the discharge port 9c on the front end side of the discharge auger 9 with a partition wall 18 therebetween. The operation of the motor 19 is interlocked with the operation of the shaft 12 a of the transfer spiral 12, and the rotation of the motor 19 is intermittently performed by the discharge clutch switch 11.
However, the size of the motor 19 is small enough not to interfere with dust discharge. The rotation of the motor 19 sucks dust and the like ejected from the discharge port 9c of the discharge auger 9 by the rotation of the fan 20 and sends it into the bellows 15. It is set in advance.

Therefore, the grain transferred from the glen tank 7 by the transfer spiral 12 passes through the inside partitioned by the partition wall 18 and is transferred to the carrier platform below the discharge port 9c of the discharge auger 9 by its own weight. A large amount of dust and the like generated at that time is sucked by the rotation of the fan 20 and sent into the upper bellows 15.
On the other hand, the dust outlet 21 on the tip end side of the bellows 15 as the switching device can be fixed in any direction, so that the direction and position in the surroundings have no problem in consideration of the wind direction and the like. This makes it possible to provide a sanitary grain discharge working environment.

FIG. 3 is another example, and a side sectional view of the main part is shown as in FIG.
In the figure, most of the configuration of this is substantially the same as that of the first embodiment. However, in the dust discharging device D, the motor 19 as a separate power is not used and the transfer spiral shaft 12a is placed outside the partition wall 18. The fan 20 is rotated at an increased speed by providing a small bevel gear 23 that extends to the front end and is fitted with a large bevel gear 22 at its tip and meshed with the gear 22a.
In this case, it is necessary to sufficiently seal the supporting component portion of the transfer spiral shaft 12a at the partition wall 18 and the space between the fan shaft 20a and the gear case 24, and the gear case 24 does not interfere with dust discharge. It is necessary to be the size of.

  Therefore, in this case, the power of the transfer spiral 12 is directly transmitted to the rotation of the fan 20 by the speed increase transmission between the two bevel gears 22 and 23, so that no separate drive source (the motor 19 in the first embodiment) is required. It is.

Next, in order to explain the operation of the present invention, the desired location is driven by the combine traveling machine 1 of FIG. 1 in the field to cut and thresh the napped cereal, and the inside of the Glen tank 7 is filled with grains. However, at this time, the mowing / threshing operation is temporarily stopped, and the traveling machine body 1 is moved so as to be brought closer to the transport vehicle placed near the field.
Then, only the engine is driven in the state of being close to the transport vehicle, and when the tip discharge port 9c of the discharge auger 9 reaches the optimal discharge position located above the loading platform of the transport vehicle by the auger operating lever 10, the movement of the discharge auger 9 is performed. To stop.
Next, when the discharge clutch switch 11 is pressed, the transfer spiral 12 in the discharge auger 9 rotates, and the grains in the grain tank 7 are transferred and discharged toward the loading platform of the transport vehicle.

At this time, the grain is sent forward by the rotation of the wings of the transfer helix 12 and is vigorously discharged from the discharge port 9c of the discharge auger 9 onto the carrier bed. At the same time, the grain is discharged from the discharge port 9c. A large amount of dust or the like contained in the dust is scattered around.
However, in the case of the present application, by operating the discharge clutch switch 11, the motor 19 is switched on at the same time as the transfer spiral shaft 12a rotates, and the fan 20 is rotated so that the dust or the like does not spread around. The air is sucked into the bellows 15 and discharged from the outlet 21.

That is, the bellows 15 as the switching device can freely adjust the dust discharge direction as the outlet 21 on the tip side thereof, so that it can be hygienic by directing it to a direction or position that does not hinder the surroundings in consideration of the wind direction or the like. A simple grain discharge working environment is easily created.
Moreover, it contributes also to the improvement of the sorting performance of the discharged | emitted grain by efficiently sucking and removing the dust contained in the inside of a grain.
This can be expected to have substantially the same effect in the second embodiment.

It is a whole side view of a combine. It is a sectional side view of the principal part same as the above. It is a sectional side view of the principal part of other examples.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Traveling machine body 7 Glen tank 9 Discharge auger 9c Discharge port 10 Auger operation lever 11 Discharge clutch switch 12 Transfer spiral 15 Bellows 19 Motor 20 Fan 21 Exit D Dust discharge device

Claims (2)

  A combine equipped with a glen tank on the machine base and equipped with a discharge auger that discharges the grains in the glen tank to the outside of the machine. Discharge auger.   The combine discharge auger according to claim 1, wherein the dust discharge device is provided with a switching device for switching a discharge direction.

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