JPS5934098B2 - combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, a pre-treatment device for raising and reaping planted culms is disposed at the front of the machine, and at the rear thereof, a pre-treatment device for raising and reaping planted culms is provided. A threshing section is installed in which the grains are threshed while being held and transported toward the rear of the machine, and at the rear of this threshing section, a horizontally long and large wind selection exhaust port is opened toward the rear of the machine. The present invention relates to a combine harvester, wherein the combine harvester is provided with a cutter for shredding waste straw after clamping and threshing above the exhaust port.

As mentioned above, combine harvesters such as the side-blowing sorting type are configured to drop shredded straw from above the horizontally wide wind-selecting exhaust port that opens toward the rear of the machine. Therefore, there is a problem in that the shredded straw is blown away by the strong wind-selected exhaust and scattered onto the uncut land side or adjacent fields, but it has not been easy to solve this problem.

This is because if it is a so-called closed type with a small exhaust port for wind selection, scattering due to falling shredded straw near the exhaust port can be avoided by installing a guide gutter at this location. As mentioned above, in the case of a so-called open type exhaust outlet with a horizontally wide opening, a guide gutter or guide plate is installed between the exhaust outlet and the place where the straw is falling to isolate the two, or the exhaust If the opening amount of the mouth is made small, the wind exhaust resistance will increase, which will have a negative effect on the wind selection performance, and if the distance between the front and rear of the aircraft is increased, the front length of the aircraft will become longer, which will impair turning and storage performance. This is because it will be a disadvantage.

The present invention aims to achieve the above-mentioned characteristics without adversely affecting the wind selection performance by bending the wind selection exhaust passage or reducing the opening amount, while minimizing the length of the front and rear of the fuselage. The purpose is to solve problems such as:

Next, embodiments of the present invention will be described in detail based on the drawings.

Pretreatment device 1 for raising and reaping planted culms at the front of the machine
A threshing section 2 is mounted on the traveling device 3, and the threshing section 2 is mounted on the traveling device 3, and the threshing section 2 is mounted on the traveling device 3, and the harvested husk culm from the pre-processing device 1 is conveyed while being clamped toward the rear of the machine. In a combine harvester in which cutting cutters 5 are arranged in series, the threshing section 2 includes a structure 6 and a processing barrel γ whose axes are aligned in the direction of movement of the machine body, and which are disposed along the axes, and
It is configured as a so-called side-blowing sorting type threshing section, which is provided with a wind selection section 8 having a wind selection path toward the rear of the machine, and the wind selection exhaust port 9 is opened in the rear of the machine into an oblong wide opening over the entire width of the wind selection section. ing.

The shredding cutter 5 is provided above the exhaust port 9.

The shredding cutter 5 has a pair of rotating shafts io, io whose axis is oriented in the lateral direction of the machine body, and a large number of disc cutters 11...
It has a disc-shaped shredding cutter structure with ..., and is used to cut the waste straw over the entire length of the waste straw that is conveyed in a deformed path inside the machine by a conveying device 12 connected to the waste straw 4. Acts as a shredder.

A forced conveyance device 13 is provided below the cutter 5 to receive the shredded straw falling from the cutter 5 and convey the received shredded straw toward the already cut field.

This forced conveyance device 13 is composed of a hopper state 14 and a spiral rotating body 15 disposed close to the bottom of this hopper-like body 14, and a wind selection exhaust path from the exhaust port 9 is provided at the end of the feed on the mowed field side. Straw discharge ports 16 extending downward and forward of the machine body across A are connected to each other.

That is, the configuration is such that the shredded straw from the cutter 5 is collected by the forced conveyance device 13, and the shredded straw is discharged across the exhaust path to a location unaffected by the sorting wind while the exhaust path is open. It is being done.

As is clear from the above, the shredded straw that is discharged is discharged without being affected by the wind selection exhaust.
As mentioned earlier, the shredded straw can be discharged outside the machine without adversely affecting the sorting performance and without scattering the shredded straw onto uncut land or adjacent fields.

Furthermore, since the discharge direction is directed inward, there is no risk of discharging shredded straw onto the ridge or into the adjacent field when the machine turns around at the edge of the ridge.

Although a straw discharge port 16 was provided across the wind selection exhaust passage,
It is also possible to simply open the straw discharge port 16 at the side of the wind selection exhaust port 9 on the terminal side of the forced conveyance device 13. In this case, the straw discharge port 16 will be slightly affected by the wind selection exhaust, but as described above. Compared to the conventional configuration, the problem of shredded straw scattering has been almost completely solved.

The above are examples of the present invention.

As shown in this example, the present invention includes a
A pre-processing device 1 for raising and reaping the planted husks is disposed, and behind it is a threshing device for threshing the harvested husks from the pre-processing device 1 while pinching and transporting them toward the rear of the machine body. Part 2
At the rear of the threshing section 2, a wind selection exhaust port 9, which is horizontally long and has a large opening, is provided so as to open toward the rear of the machine. In a combine harvester equipped with a cutter 5 for shredding waste straw after threshing, the shredded straw falling from the cutter 5 is caught and caught at the lower part of the cutter 5 and the upper part of the exhaust port 9. Shredded straw is removed from the exhaust port 9.
A forced conveyance device 13 is provided for conveying straw to a straw discharge port 16 located on the lateral side of the already cut field.

In other words, even though the wind selection exhaust port is horizontally long and has a large opening toward the rear of the aircraft, all of the shredded straw is concentrated and released from the side of the wind selection exhaust port. The problem of shredded straw being scattered by the wind-selected exhaust was solved by making the front-to-back length of the machine as short as possible without adversely affecting the wind-selecting performance.

In addition, the shredded straw that falls from the cutter is caught at a relatively high position on the machine, but the caught shredded straw is transported to the already cut field side by a forced conveyance device, so that the shredded straw does not become clogged. There is no risk of it happening.

[Brief explanation of drawings]

The drawings show an embodiment of a combine harvester according to the present invention, in which FIG. 1 is an overall side view, FIG. 2 is a rear view of a broken main part, and FIG. 3 is a cross-sectional side view of the main part. 5...Cutter for shredding, 9...Exhaust port for wind selection, 13...Forced conveyance device, 16...
・Straw outlet.

Claims (1)

[Claims] 1 A pretreatment device 1 for raising and reaping planted culms is installed at the front of the machine, and at the rear thereof, the cut culms from the pretreatment device 1 are held and held toward the rear of the machine. A threshing section 2 for threshing while being transported is provided, and at the rear of the threshing section 2, a wind selection exhaust port 9 is installed which is horizontally long and has a large opening.
is provided to open toward the rear of the aircraft, and
In a combine harvester in which a cutter 5 for shredding waste straw after clamping and threshing is provided above the exhaust port 9, the shredded straw falling from the cutter 5 is cut at the bottom of the cutter 5 and above the exhaust port 9. A combine harvester characterized by being provided with a forced conveyance device 13 that receives the received shredded straw and conveys the received shredded straw to a straw exhaust port 16 located laterally on the cut field side of the exhaust port 9.