JPH0745159Y2 - Grain induction partitioning device in screw sorting section - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a grain guide partitioning device in a screw selection section.

(Prior Art) Conventionally, a so-called general-purpose combine is known in which a screw selection unit is provided below an axial flow type handling cylinder in parallel with the handling cylinder axis.

(Problems to be solved by the invention) The above-described screw selection unit has the following drawbacks.

In other words, with round soybeans, which have a relatively large particle size compared to rice, the grains that fall from the receiving net (concave) of the handling cylinder hit the rotating sorting spiral and are reflected, passing through the sorting net of the screw sorting unit. Without doing so, it may jump out of the machine and lead to loss.

In order to prevent this, a partitioning device for guiding the grain is provided in the grain transfer direction from the lower part of the handling room to the screw selection part, as known in Japanese Patent Laid-Open No. 63-3724 and Japanese Laid-Open No. 64-43640. Has been. These things start and end of mowing,
If the straw flow rate is low, the cuttings may be mixed.

Therefore, the object of the present invention is to obtain a grain guide partitioning device in a screw selection unit that can prevent mixing of cuttings when the flow rate of straw is reduced while the loss of splashing out of the machine is reduced. It is a thing.

(Means for Solving the Problem) In order to achieve the above-mentioned objects, the present invention provides the following grain guide partitioning device in a screw selection section.

That is, a movable gutter plate that can be opened and closed freely with respect to the handling chamber side plate or the fixed gutter plate between the handling chamber side plates in the case where the grain guiding partitioning device is provided in the grain transfer direction from the lower side of the handling chamber to the screw selection section. Is provided and the gutter passage formed by these is configured to be openable and closable, and is a grain guide partitioning device in a screw selection unit.

(Function) Since the partition is provided in the grain transfer direction from the lower part of the handling chamber to the upper part of the screw selection part, the falling speed of the grain leaking from the net of the handling barrel is buffered and the reflection of the grain is prevented. be able to.

Further, since the gutter passage formed by the movable gutter plate that can be opened and closed with respect to the fixed gutter plate between the grain chamber side plate and the handling chamber side plate is openable and closable, when the straw flow rate is low, the movable gutter plate closes and chaff is closed. If the flow rate is increased and the flow rate is increased, the movable gutter plate will open and the objects to be sorted will flow.

(Embodiment) First, a general-purpose type combine combine will be described. The crop is scraped by the scraping reel and cut by the cutting blade, and the cropped crop is cut from the scraping auger by the chain conveyor of the feeder house. It is carried to a threshing machine with a screw-type drum.

In FIG. 5, the threshing by the handling barrel (1) drops from the receiving net (2) onto the spiral (3) arranged parallel to the handling barrel axis, and is terminated by the rotating spiral (3). Move to the side.

During this transfer process, grains and fine straw debris leaks downward from the net (4) stretched over the gutter of the spiral, and only the long straws are carried toward the culm (5).

Grains that leaked from the net (4) fell to the first gutter (6),
It is carried to the paddy tank by the screw conveyor,
The straw waste is discharged to the outside of the machine by a compressed air fan (7) and a suction fan (8) arranged below the spiral (3) and before and after the sorting section. Then, the second item falls on the second gutter (9).

The selection air from the compressed air fan (7) is guided by the guide plates (10) (11).
Guided by (12), it crosses the sorting air ducts on the first gutter (6) and the second gutter (9), and the suction fan (8).
Is installed below the end of the spiral and is rotating in the casing (14) with the suction port (13), and the dust outlet (1
5) It is designed to be exhausted from.

Further, a plurality of spirals (3) (3a) (3b) are arranged below the handling barrel, and each of them forms a gutter with a partition (16) (16a), on which a net (4) (4a) ( 4b) is stretched.

According to the above, in round soybeans having a relatively large particle size compared to rice barley, the grain leaked from the net (2) is reflected by the rotating spiral (3) and the net (4) is received. It may lead to loss without jumping out of the aircraft.

Therefore, as shown in FIG. 1, it is conceivable to provide a grain guide partitioning device in the grain transfer direction from the lower side of the handling chamber to the screw selection section. That is, the partition of Spira (1
6) Suspended partitions (17) (17a) (17b) (17c) with slits above (16a) and on both sides of the fuselage (18) (18a) to reflect the grain or remove grain from the handling room. This is to buffer the falling speed, and to reduce the initial speed of cutting off other than the grain.

And the material of the partition is made of light material such as thin rubber.

The one shown in FIG. 2 is also the same as that shown in FIG. 1, and the partition is formed in the shape of a gutter, and the handling cylinder receiving net (4) to the spiral (3) are formed.
It is provided above the axis of (3a) and (3b).

According to the above, the leaked substance thrown out in the rotating direction of the handling cylinder is smoothly taken in along with the rotation of the spirals (3), (3a) and (3b), and diffuse reflection on the feed surface of the spiraler disappears. Therefore, damage to the grain is reduced, and the spiral is taken in smoothly, so that there is no stagnation of dust when the flow rate is high and the sorting performance is improved.

However, the one shown in FIGS. 1 and 2 has a problem that the cuttings are mixed when the straw flow rate decreases at the beginning and the end of the cutting.

The present solution is to solve this problem by providing a movable gutter plate that can be opened and closed with respect to the treatment chamber side plate or a fixed gutter plate between the treatment chamber side plates, and a gutter passage formed by these can be opened and closed.
Provided is a grain guide partitioning device in a screw selection section in which a cutting is not mixed even if a straw flow rate is reduced.

That is, as shown in FIG. 3, fixed gutter plates (21) (21a) are provided in the lower center of the net (4) of the handling cylinder, and movable gutter plates (20a) (20b) are provided on the gutter plates (21) (21a). 22a) and (22b) support the fixed gutter plates (21) (21a).

On the other hand, the gutter plate (20) movable with respect to both side plates (18) (18a)
(20c) is installed, and springs (22) and (22c) are used for both side plates (18) (18
a) to support the gutter plates (20) (21), (20a) (20b),
(21a) (20c) forms an openable gutter.

And when the straw flow rate is low (when there are many cuts in the chaff)
The movable plates (20) (20a) (20b) (20c) are closed by springs so that the chaff does not flow to the sorting section, and when the flow rate increases, the weight of the springs (22) (22a) (22b) (22c) increases. ), The gutter plates (20) (20a) (20b) (20c) start to open and allow the objects to be sorted to flow into the spirals (3) (3a) (3b).

Therefore, when the flow rate is low, mixing of cuts is reduced, and the sorting performance is improved.

At the end, open the movable gutters (20b) (20c) together with the driver's seat lever via the wire, and move the gutters (20) (20a)
Use the other hand lever to open it via the other wire.

Since the movable gutter plates (20b) (20c) and the movable gutter plates (20) (20a) rotate in different directions, in order to operate them with one hand lever, the wires can be moved in opposite directions with one lever. Adopt an appropriate pulling mechanism.

Incidentally, the one shown in FIG. 4 is outside the scope of the present invention and shows one for adjusting the clearance between the sorting net (4) and the spiral (3).

In a combine with a conventional screw sorting mechanism, adjustment of the clearance between the sorting net and the spiral is
Uses push-up or suspension with bolts,
The bolts and nuts are adjusted each time according to the crop.

Fig. 4 shows the shaft (2) of the spiral (3) (3a) (3b).
3) Screws (27) (27a) are provided on both ends of the metal (24) that supports (23a) (23b), and the screws (25) (25a) screwed to the screw receivers (27) (27a) are electrically driven. Motor (26) (26
The position of the shafts (23) (23a) (23b) is moved up and down by rotating in (a), and the clearance between the shaft (23) (23a) (23b) is adjusted. The clearance between can be adjusted at the same time.

Further, even if the crop or the condition is changed, it is possible to respond immediately, and the clearance can be increased at the time of the high flow rate and can be decreased at the time of the low flow rate according to the flow rate, so that the sorting performance is improved.

In any case, in the case of the present invention, in the case where the partition device for guiding the grain is provided in the grain transfer direction from the lower side of the handling room to the screw selection section, the handling room side plate or the handling room side gutter is fixed. It is characterized in that a movable gutter plate that can be opened and closed is provided on the gutter plate.

(Effects of the Invention) According to the present invention, the partitioning device can buffer the speed of the grain reflected from the grain or the grain leaking from the handling cylinder, and reduce the initial velocity of the culling other than the grain. Things
It is possible to prevent rushing cuttings from rushing into the sorting net and suppress irregular reflection, so that the loss of splashing out of the machine can be reduced.

Also, since the gutter passage formed by the movable gutter plate that can be opened and closed relative to the fixed gutter plate between the grain chamber side plate and the handling chamber side plate is openable and closable, the movable gutter plate closes and the chaff does not flow when the straw flow rate is low. In this way, when the flow rate increases, the movable gutter plate opens to allow the objects to be sorted to flow, which reduces the mixing of slicing pieces at a low flow rate and improves the sorting performance.

At the end, however, the movable gutter plate can be opened so that the sorting device can be kept free of remnants.

[Brief description of drawings]

FIG. 1 is a sectional view showing an example of a grain guiding partitioning device in a screw sorting device. FIG. 2 is a sectional view of a partitioning device different from FIG. 1, FIG. 3 is a sectional view of the device of the present invention, and FIG. Is an explanatory view showing a clearance adjusting device between the spiral and the sorting net, FIG. 5 is a sectional view of a conventional screw type thresher, and FIG. 5 is a transverse sectional view of the same. (1) …… Handle (2) …… Receiver net (3) …… Spiral (4) …… Receiver net (17) (17a) (17b) (17c) …… Partitioning device (18) (18a)… … Side plate (20) (20a) (20b) (20c) …… Movable gutter plate (21) …… Fixed gutter plate (21a) …… Fixed gutter plate

Claims (1)

[Scope of utility model registration request] 1. From the lower part of the handling room to the screw selection section,
In the case where the partition device for guiding the grain is provided in the grain transfer direction, a movable gutter plate that is openable and closable with respect to the handling chamber side plate or the fixed gutter plate between the handling chamber side plates is provided, and the gutter formed by these Grain induction partitioning device in a screw selection unit with a passage that can be opened and closed.