JPS5845550Y2 - Threshing sorter - Google Patents

Description

[Detailed description of the invention] The present invention is equipped with a vortex sorting chamber at the rear of the handling chamber that separates grains from straw waste by causing them to flow spirally around an axis perpendicular to the rotational axis of the handling barrel. This relates to a side-blowing type threshing sorter.

Conventionally, when separating the residual waste in the handling room, the residue was fed to the swinging sorting section, so a large amount of straw mixed in the residue easily flowed into the second material from the swinging sorting section. The disadvantage was that the sorting performance deteriorated.

One possible solution to this drawback is to send the residue to a vortex sorting chamber provided separately from the wind sorting section for sorting.

There are two types of threshing sorters: a so-called vertical blow type device in which the axis of the handling cylinder is perpendicular to the processing direction of the material to be sorted, and a so-called horizontal blow type device in which the axis of the handling cylinder is aligned in the processing direction of the material to be sorted. There is.

Of these two types, in order to supply the residue in the handling chamber to the vortex sorting chamber formed at the end of the sorting chamber as described above, the vertical blow type threshing sorter is better because the residue is removed by the rotating action of the handling cylinder. Since the discharge direction and the direction of supplying the residue to the vortex sorting chamber (the direction of processing the sorted material) are the same, it is convenient to be able to use the motive force of the handling cylinder, etc., but in general terms, the side-blowing type The width of the threshing device (width in the direction perpendicular to the sorting direction) can be made shorter due to factors such as the fact that the conveyance direction of the husk and the sorting direction are the same, so the threshing device is mounted on a combine harvester, etc. Convenient as a threshing and sorting device.

Therefore, we would like to adopt the above-mentioned means of supplying the residue in the handling chamber to the vortex sorting chamber using a horizontal blow type threshing sorting device, but as can be seen from the explanation of the vertical blow type device,
In a side-blowing type threshing sorting device, the direction in which the residue is forcibly sent out by the rotating action of the handling cylinder and the direction in which the residue is supplied to the vortex sorting chamber are different (orthogonal to each other). As for floating dust in the room, it is difficult to transfer it to the sorting wind, and it is considered difficult or extremely inefficient to achieve this. Established Utsukai Showa 52-7406
Even using the technique known in Publication No. 9, it was difficult to achieve efficient vortex sorting by simply scraping out the remaining processed material outside the handling chamber.

The present invention has been made in view of the above-mentioned circumstances, and aims to significantly improve the sorting performance while avoiding an increase in the size of the apparatus.

The technical feature of the threshing sorter according to the present invention is that a suction device is provided in the lower end of the handling chamber in the direction of rotation of the handling cylinder, and the suction device is provided with the rotational axis perpendicular to the rotational axis of the handling cylinder. To? 95
The suction port of the suction and carry-out device is opened into the handling chamber at the downstream location, and the discharge port of the suction and carry-out device that opens in the radial direction and the vortex sorting chamber are connected to a dust removal processor that is provided in the vortex sorting chamber. The straw waste in the handling chamber is connected by a guide tube that opens along the tangential direction of the eddy current sorting chamber while guiding it toward the side, and the straw waste in the handling chamber is sent into the eddy current sorting chamber by a thrower composed of the suction carrying device and the guide tube. Yes, it has the following effects.

In other words, the suction direction and the discharge direction are perpendicular to each other, which is the characteristic of the suction and discharge device constituting the thrower.
Since the residue in the handling chamber is supplied to the vortex sorting chamber while being separated from the sorting chamber by a guide tube, the amount of straw waste mixed into the second material from the oscillating sorting section is extremely reduced, and the overall sorting performance is greatly improved. It can be increased in width.

Moreover, since the suction and carry-out device of the thrower actively sucks up the residue in the handling chamber together with the floating dust in the handling chamber, this thrower also eliminates the problem of airborne dust blowing out from the handling port, which is common in threshing sorting equipment. can do.

Next, with this configuration, it is expected that a relatively large amount of unprocessed material will be supplied to the vortex sorting chamber, but by devising the guiding direction of the guide cylinder, it is possible to eliminate the material at the speed of rotation and in the direction of the axis of the helical flow. Since the unprocessed material is given a speed toward the wind outlet,
The synergistic effect of the dust blower provided in the vortex sorting chamber and the sending force of the thrower makes it possible to avoid poor sorting caused by stalling due to accumulation of unprocessed materials in the vortex sorting chamber. A large amount of unprocessed material can be sorted through a powerful whirlpool without increasing the size.

As described above, the present invention has been able to obtain the various advantages described above by actively sending the residue in the handling chamber into the vortex sorting chamber using a thrower.

Embodiments of the present invention will be described below with reference to illustrative diagrams of a threshing sorter mounted on a combine harvester.

The culms supplied to the handling chamber A from the supply port 2 by the threshing feed chain 1a are threshed by the rotationally driven handling cylinder 3, and the threshed waste straw is transferred from the takeout port 4 to the guide plate 5 by the waste straw conveyance chain 1b. It is arranged so that it is carried out of the aircraft.

Below the handling room A, a swinging sorting section B equipped with a swinging plate 6 and a wind sorting section C equipped with a winnowing machine 7 are provided. While transferring in the axial direction, and
The Karakine γ sends sorting air in the direction of the axis of the handling cylinder, and then the oscillating air sorting is carried out, and the No. 1 item is carried out of the machine using the No. 1 screw 8, and the No. 2 item is transferred to the handling room A using the No. 2 screw 9. It is intended to be reduced to

A vortex sorting room equipped with a dust removal blower 10 was provided on the culm transfer direction side of the handling room A, and the sorting air from the wind selection section C was allowed to flow into the vortex sorting room from below, and flowed in together with the sorting wind. The processed material is sorted while being made to flow in a spiral manner by the spiral flow wind around the horizontal axis generated by the dust blower 10, the second material is supplied to the No. 2 screw 9, the straw waste is sucked by the dust blower 10, The air is discharged to the outside of the machine from the air exhaust port 11.

A guide tube 12a connected from the handling chamber A to the eddy current sorting chamber, and a thrower 12 which serves as a device 12b for sucking the residue in the handling chamber and sending out the residue are provided, and the suction and discharge device 1 is provided.
Due to the suction action of 2b and the resistance force provided by the rotating force of the handling cylinder 3, the residue in the handling chamber A that has reached the population of the thrower 12 is directly transferred to the vortex sorting chamber by the action of the suction and discharge device 12b. The structure is such that the grains and waste straw are separated from each other by being supplied and caused to flow spirally around the horizontal axis by a spiral flow wind, thereby preventing a large amount of straw waste from being mixed into the second material from the oscillating sorting section B. It is designed to be avoided.

To construct the guide tube 12a, as shown in FIGS. 2 and 3, the opening wall of the guide tube 12 to the vortex sorting chamber is inclined, and the opening is on the lower side of the swirling of the spiral flow. ,
The residue when being supplied from the thrower 12 to the sorting chamber toward the exhaust port 11 side has a swirl velocity and a velocity toward the exhaust vent 11 in the direction of the spiral flow axis. This structure prevents the residue from diffusing in the helical direction and in the direction of the helical flow axis in the sorting chamber, stagnation, and stalling.

A removable auxiliary guide 13 is provided at the opening end of the guide tube 12a into the sorting chamber, and can be used separately as necessary, such as by removing this auxiliary guide 13 when the residue is too humid.

[Brief Description of the Drawings] The drawings show an embodiment of the threshing sorter according to the present invention, in which Fig. 1 is a side view, Fig. 2 is a plan view, and Fig. 3 is a partially cutaway perspective view showing main parts. be. 11...Exhaust port, 12...Thrower-1
A: Handling room, D: Sorting room.

Claims (1)

[Scope of utility model registration request] A side-blowing type threshing sorter is provided at the rear of the handling chamber A with a vortex sorting chamber that separates grain from straw waste by causing spiral flow around an axis perpendicular to the rotational axis of the handling barrel 3. At the end of the handling chamber A, on the downstream side in the direction of rotation of the handling cylinder, there is provided a suction and unloading device 12b whose rotational axis is orthogonal to the mobile rotational axis.
The suction port of the suction and carry-out device 12b along the axial direction is opened into the handling chamber A at the downstream side, and the discharge port of the suction and carry-out device 12b that is opened in the radial direction and the vortex sorting chamber are opened. , Dust blower 1 installed in the vortex sorting room
The thrower 12 is connected by a guide tube 12a that opens along the tangential direction of the vortex sorting chamber while guiding it toward the 0 side, and the straw waste in the handling chamber A is suctioned and carried out by the thrower 12 which is composed of the aforementioned guide tube 12b and the guide tube 12a. A threshing sorting device that feeds the grain into the whirlpool sorting chamber.