JPH0383518A - Selecting device in thresher - Google Patents

Abstract

PURPOSE:To perform uniform selection in reducing selecting fluctuation in shaking selecting shelf by providing a feed chain along crop stalk-threshing port at a side of a threshing chamber and providing plural spirally transferring devices transferring threshing-treated matter fallen from selecting net to downward of the threshing chamber to backward. CONSTITUTION:Feed chain 4 is provided along a crop stalk-threshing port 3 at a side of a threshing chamber 2 in which a threshing cylinder 1 is supported by a shaft and plural spirally transferring devices 6, 6' and 6'' transferring threshing-treated matter fallen from selecting net 5 to downward of the threshing chamber 2 to backward, then the threshing-treated matter is uniformly fed to a shaking selecting shelf 7 with transferring by said spirally transferring devices 6, 6' and 6''. For instance, a spirally transferring device 6 far from the feed chain 4 is rotated at the highest speed and others are driven at lower speed, in turn.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a sorting device in a threshing machine.

[Prior art]

Conventional devices of this kind, for example, as described in Japanese Utility Model Application Publication No. 61-12352, are low-grade threshing machines equipped with a plurality of spiral transfer devices below the handling chamber. Degrain leakage from the receiving net is the second type indicated in the bulletin.
They fall concentrated on the left side of the figure.

As a result, the grains could not be sorted evenly during grain removal, resulting in uneven sorting.

[Problem to be solved by the invention]

This invention aims to eliminate the above-mentioned defects of the conventional type, and aims to evenly supply the deflated grains that have leaked from the handling chamber onto the swing sorting rack.

In other words, due to the direction of rotation of the handling barrel, the amount of grain that leaks from the sorting net in the handling room to the sorting room below is more on the side far from the feed chain (in the case of lower-grade types), and less on the side closer to it. do.

Therefore, if the 1 sorting device sorts this as it is,
Uneven sorting occurs between the side where grains have been degrained more and the side where there has been less grain removal, making it impossible to perform good sorting.

[Means to solve the problem]

The present invention uses the following technical means to solve the above-mentioned problems. That is, the feed chain 4 is placed along the grain handling port 3 on one side of the handling chamber 2 in which the handling cylinder 1 is mounted on an axis.
A plurality of spiral transfer devices 6 and 6' are installed below the handling room 1 to transfer the threshed material leaking from the sorting net 5 to the rear.
This is a sorting device for a threshing machine which has a structure in which the threshing material is uniformly supplied to the swinging sorting shelf 7 while being transferred by the spiral transfer devices 6, 6' and 6''.

[Action/Effect] / While driving each rotating part of the machine, the grain is fed from the grain supply port 8 to the handling room 2.
The grain culms are fed to the feed chain 4 and continuously conveyed through the feed chain 4.

In this way, the grain culms are threshed by the handler 1141 while being transported, and the straw is discharged from the machine through the discharge port 9.

and threshed grains and very short straw scraps.

The leakage material falls from the sorting net 5 onto the spiral transfer devices 6, 6', and 6" below, but at that time, the leakage material is transferred to the side far from the feed chain 4 due to the handling I'll rotating in the direction of the arrow. It tends to fall a lot.

Therefore, the spiral transfer device 6.6'6'' that receives the leaked material is
Since the transfer capacity on the side with a large amount of leakage is increased, transfer can be carried out while the amount of M loaded is small, and since the transfer capacity on the side with a small amount of leakage is low, the layers are transferred while gradually increasing the thickness.

Therefore, the objects to be sorted are supplied in a substantially uniform layer at the starting end of the swing sorting shelf 7.

Therefore, the swing sorting shelf 7 has a feature that there is little unevenness in sorting and it is possible to sort uniformly.

〔Example〕

The handling room 2 has a handle 1511 mounted on an internal shaft, and the grain culm supply port 8 on the minus side and the straw removal port 9 on the other side are communicated through the grain culm handling port 3.

4 is a feed chain, which is provided along the grain handling port 3.

10 is a processing cylinder, and 5 is a sorting net.

A plurality of spiral transfer devices 6, 6', and 6'' are arranged below and in front of the sorting net 5.

Each spiral transfer device 6, 6', 6'' has a sorting net 5.
The structure is such that the threshed grains leaking from the grains are transferred onto the swinging sorting shelf 7 at the rear.

In the case of the embodiment shown in FIG. 1, each spiral transfer device 6, 6', 6'' has pulleys 11', 11 with a smaller diameter in order from the spiral transfer device 6 on the side far from the feed chain 4.
”.

That is, the pulleys 11, 11', and 11'' are configured to be driven by the driving pulley 12 via the belt 13, so that the helical transfer device F16, which is farthest from the feed chain 4, is rotated at the highest speed and sequentially driven at lower speeds.

Next, in the embodiment shown in FIG. 4, the diameters of the spiral transfer devices 6, 6', and 6'' that are farthest from the feed chain 4 are made smaller in order, and the one closest to the feed chain has the smallest diameter.

Next, in the embodiment shown in FIG. 5, the spiral transfer device 6 farthest from the feed chain 4 is made the highest, and is made lower in sequence.

In addition, 14 is a pressure-air winnowing device, 15 is a dust suction device, 16 is a first transfer spiral, and 17 is a second transfer spiral.

When the threshing operation is performed with the above-described structure, the grain culms supplied from the grain culm supply port 8 are held by the feed chain 4 and sequentially conveyed rearward.

The grain culms are then threshed by the handling cylinder 1 rotating in the direction of arrow A, and are discharged from the straw outlet 9 to the outside of the machine. The threshed products are divided into those that leak downward from the sorting net 5 and those that are supplied to the processing cylinder 10 and are reprocessed.

In this case, as the handling cylinder 1 rotates, the amount of threshed grain leaking from the sorting net 5 increases on the downstream side in the rotational direction.

Then, each spiral transfer device 6, 6', 6'' has a higher conveyance capacity when a large amount of threshed grain falls, so it is sent to the swing sorting rack 7 as soon as possible. On the other hand, on the side closer to the transfer capacity, since the transfer action is slow, the layer becomes thicker due to falling objects from the handling chamber 2.

Therefore, when the threshing grain reaches the swing sorting shelf 7, the layer thicknesses on the left and right sides have been substantially corrected and are in a nearly equal state.

Further, the configuration of the embodiment shown in FIG.
6' and 6〃 can be made to flow down sequentially from high to low during the process of transporting the threshed grains, so that a uniform layer can be obtained as a whole.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a front sectional view showing the first embodiment, FIG. 2 is a side sectional view thereof, FIG. 3 is a front view of the transmission device, and FIG. 4 is a front sectional view of the first embodiment. 5 is a front sectional view of the second embodiment, and FIG. 5 is a front sectional view of the third embodiment. Explanation of symbols 1... Handling cylinder 2... Handling room 3... Handling opening
4... Feed chain 5... Sorting net 6, 6', 6''... Spiral transfer device

Claims (1)

[Claims] (1) A feed chain 4 is installed along the grain handling port 3 on one side of the handling chamber 2 in which the handling cylinder 1 is mounted on an axis, and the threshed material leaking from the sorting net 5 is placed below the handling chamber 1. A plurality of spiral transfer devices 6, 6', and 6'' are provided for rearward transfer, and the spiral transfer device 6
A sorting device in a threshing machine configured to transport and evenly supply the threshed material to the swinging sorting shelf 7 by means of 6' and 6''.