JPS5926839Y2 - threshing machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a threshing machine configured to convey waste straw in a hanging position when discharging the waste straw from a handling room to the outside of the machine.

This type of threshing machine has a disadvantage in that the sorting performance is degraded due to the presence of a straw conveyance path for conveying the straw in a hanging position.

In other words, the waste straw that is being transported in a hanging position along the waste straw transport path has untreated grains and grains attached to it, and the grains, straw waste, etc. accumulate in the waste straw transport path, reducing the sorting performance. There are drawbacks.

In order to eliminate the above-mentioned drawbacks, the present invention aims to improve the sorting performance by collecting grains, etc. in the straw conveyance path, and eliminating the accumulation of grains, straw waste, etc.

In the present invention, a large number of holes through which paddy can pass are provided in the straw hanging guide part, which is formed by bending the tip of the vertical partition wall between the passage and the sorting chamber to form the straw transport passage. A tunnel is drilled to send grains, etc. in the straw conveyance passage to the sorting room.

Hereinafter, the present invention will be explained in detail based on the embodiments shown in the figures.

Referring to FIGS. 1 and 2, the threshing machine includes a handling barrel 1,
A receiver facing the lower outer periphery of the handling cylinder 1 has a net 2, a swing plate 3 thereof is positioned below the net 2, and a sorting net 4, a stroke rack 5, and a An oscillating sorting body 7 in which a streak line 6 etc. is positioned, a streak line 6 at the tip of the oscillating sorting body 7
The first conveyor No. 82 conveyor 8, which is located below the threshing machine and whose conveyance direction is the short width direction of the threshing machine, and the swing plate 3
A winnow 9, etc., which is located below and sends out sorting air along the longitudinal direction of the lower surface of the oscillating sorting body 7, is provided.

Reference numeral 10 is the 12th waste grain board, and 11 is a dust removal fan.

The sorting chamber 12 is divided into a handling chamber 13 having a handling cylinder 1, a receiving half 12A on the culm entrance side, and a half 12B on the culm discharge side.
The handling chamber 13 and its upper half are connected to each other, and the lower half communicates with the culm entrance side half 12A to accommodate the swinging sorting body 7.

On the side of the culm discharge side half 12B of the sorting chamber 12, adjacent to the foot chain 14 side, is a straw conveyance passage 15, which is formed by a threshing machine side plate 16 and a vertical partition wall 17, The upper surface of the straw conveyance passage 15 is open, and the straw conveyance passage 15 is open.
- A straw conveyance check 714a constituted by an extension of the strip 14 is located above the upper surface of the straw conveyance path 15, and the straw conveyed while being held by the straw conveyance check 714a is inside the straw conveyance path 15. It is designed to be transported towards the rear of the aircraft in a hanging position.

In addition, the lower part of the straw conveying passage 15 is divided into two parts as shown in FIG.
It faces the No. 2 conveyor 8, and is located above the lower edge 17a/ri of the vertical partition wall 17 and has a space between it and the No. 2 conveyor 8, and the straw removal passage 15 is connected to the No. 2 chamber. It is designed to guide the grains attached to the waste straw to the conveyor, and acts as the No. 4 gutter.

As shown in FIGS. 1 and 2, the lower half of the tip of the vertical partition wall 17 on the handling chamber side is bent inward to form the straw droop guide portion 18.
form.

The straw drooping guiding portion 18 gradually increases the bending radius as it goes downward from the near right-angled bend in the center, so that no guide is formed between the straw drooping guiding portion 18 and the edge 19 of the handling chamber. space(
The width of the culm opening 20 is larger at the lower end than at the middle part.

The tip of the straw drooping guiding part 18 is extended horizontally to the handling chamber 1.
A partition wall 21 is formed in the lower half of the handling barrel 1 to separate the shell culm discharge half 12B of the sorting chamber 12 from the shell culm discharge half 12B of the sorting chamber 12.

Reference numeral 22 indicates a large number of holes formed in the straw droop guide portion 18, and the shape (triangular, rectangular, circular, etc.) and arrangement thereof may be arbitrary as long as the holes are large enough to allow grains to pass through.

Reference numeral 23 designates a second straw removal chain for flattening the straw transported in a hanging position to a horizontal state.

In threshing work, the harvested husk culm is automatically fed by the advance of a combine equipped with the threshing machine of the present invention, or the harvested husk culm is manually fed to a fixed threshing machine, and the harvest is carried out by the fido chain 14 into the handling room 13. The husks are supplied, and are subjected to grain threshing processing by the rotation of the handling cylinder 1, and are sorted by the swinging and wind screening of the swinging sorter 7 in the sorting room 12, and the grains are transferred to the No. 1 conveyor 8.
As in a general threshing machine, the straw waste is transferred to the paddy tank residue or the paddy bag at the step ', and the straw waste is discharged outside the machine by the dust exhaust fan 11.

Since the threshing work in the handling room 2 is of a low-grade type, the root of the husk is held by the foot chain 14 above the side of the machine, and the threshing process is carried out in an inclined position with the tip facing diagonally downward.

The culm, which has progressed toward the rear of the machine while undergoing shedding treatment as the foot chain 14 advances, comes into contact with the straw drooping guidance section 18 at the end of the handling chamber 13, and gradually enters a hanging position. The straw enters the waste straw conveyance path 15 while changing its posture, and is transferred through the waste straw conveyance path 15 in a hanging state.

Due to the presence of the hole 22 at the tip of the straw conveyance passage 15, the handling chamber 13 → the tip of the straw conveyance passage 15 → the straw hanging guide part 1
A suction wind is generated from the hole 22 of No. 8 to the culm discharge side half 12B of the sorting chamber to the dust exhaust fan 11.

The waste straw that enters the waste straw conveying passage 15 from the discharge culm of the handling room 13 has grains and straw attached to it, and the grains and waste enter the passage 15 from the discharge culm of the handling room 13. .

These grains, waste dust, and grains adhering to the waste straw come into contact with the waste straw hanging guide part 18, and a part of the separated grains is absorbed by the aforementioned suction air passing through the holes 22. Sorting room 12
The remaining particles fall onto the No. 2 conveyor 8 and are returned to the handling chamber 13 by the conveying action of the No. 2 conveyor 8, and waste grains etc. are deposited in the straw conveying passage 15 near the straw drooping guide section 18. At the same time, suction air acts on the straw near the discharge culm to vibrate the straw, separate the tips of the straw from each other, and move the tips of the straw to the straw hanging guide part of the partition wall. To improve the recovery of grains and grains from the straw that is brought into contact with the waste straw.

When forming the hole 22 of the straw drooping guiding part 18, a punched piece 23 is inserted into the sorting chamber 12 side as a perforated iron plate as shown in FIG.
If the hole 22 is opened in the side direction on the straw conveyance path 15 side and in the bottom direction on the sorting chamber 12 side, grains, waste dust, etc. will not flow from the sorting chamber 12 to the straw conveyance path 15. This is convenient because backflow can be prevented.

As described above, the present invention is a threshing machine in which a straw conveying passage for conveying the straw in a hanging position is connected to the discharge culm opening of the handling chamber. The lower half of the tip of the vertical partition wall 17 between the straw conveying path 15 and the handling chamber side is bent inward to form a straw hanging guide part 18 corresponding to the handling chamber 13, and the straw hanging guide part 18 is formed to correspond to the handling chamber 13. A large number of holes 2 are provided in the vertical partition wall 17 at the portion facing the wall 18 to allow the paddy to pass through.
2 is provided, a suction wind is generated that passes through the hole 22 and reaches the dust removal fan 11, and grains, etc. are collected from the tip of the straw removal passage through the hole 22 into the sorting chamber 13, and the grains are collected into the removal straw. To improve the collection of adhering grains and cut grains, and to prevent the accumulation of grains, waste dust, etc. at the tip of the straw hanging conveyance passage, and to improve the sorting function of the threshing machine.

[Brief Description of the Drawings] Figure 1 is a plan view of a threshing machine embodying the present invention, Figure 2 is a vertical side view taken along the line II in Figure 1, and Figure 3 is a It is an action explanatory diagram showing a −■ cross section. FIG. 4 is a sectional view of a guide plate according to another embodiment of the present invention. 1... Handling cylinder, 12... Sorting room, 13.
...Handling room, 15... Straw conveyance passage, 17
... Vertical bulkhead, 18 ... Straw hanging guide section, 20 ... Guidance space (culm discharge port), 22 ...
...hole.

Claims (1)

[Scope of utility model registration request] In a threshing machine having a straw conveyance path for conveying waste straw from a handling chamber in a hanging position, a vertical partition wall 17 is provided to separate the sorting chamber 12 communicating with the dust removal fan 11 from the straw conveyance path 15. The lower half of the tip on the handling chamber side is bent inward and gradually faces the handling chamber to form a straw hanging guide part 20 at the tip of the straw conveying passage 15. A threshing machine comprising a large number of holes 22 having a size sufficient to allow the paddy to pass into the sorting chamber in the lower half of the tip of the vertical partition wall 17 on the handling chamber side to form a grain 20. .