JPH0229869Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention includes a bundling device equipped with a packer at the rear of the threshing device for collecting and transporting the waste straw sent out through the waste straw transport device and the auxiliary transport device into the bundling space. The present invention relates to a straw conveying device for a threshing machine installed therein.

In this type of conventional waste straw conveying device, for example,
The conveying speed by the waste straw conveying device is V ₁ , the conveying path width thereof is H ₁ , the conveying speed by the auxiliary conveying device is V ₂ , the conveying path width thereof is H ₂ , the conveying speed by the packer is V ₃ , When the conveyance path width at the operating point is _H3 , the conveyance speed relationship between these three becomes _V1 = _V2 = _V3 , and the relationship between the conveyance path widths also becomes _H1 = _H2 = _H3. It was configured as it should be, but
In this case, the waste straw sent out from the threshing device is conveyed to the binding space of the binding device at a constant speed as a small polyurethane, so the waste straw may shift and move at each waste straw transfer point, causing disturbance of posture. Not only does this occur, but it also tends to be transported into the binding space in its disordered position, resulting in not only uneven plant ends but also poor separation of waste straw to be bundled and waste straw to be bundled. Ta.

In view of the above-mentioned circumstances, the present invention makes it possible to improve the bundling defects caused by the disordered conveyance posture of the waste straw by rationally modifying the conveyance speed and conveyance path width of the three parties. The purpose is to enable the conveyance speed by the waste straw conveyance device to be V ₁ , the width of its conveyance path to be H ₁ , the conveyance speed by the auxiliary conveyance device to be V ₂ , and the width of its conveyance path to be V 1 . The width is H ₂ , the conveyance speed by the packer is V ₃ ,
When the width of the transport path at the operating point is _H3 ,
It is characterized in that the relationship between the conveyance speeds of these three is V ₁ >V ₂ >V ₃ and the relationship between the widths of the conveyance path is H ₁ <H ₂ <H ₃ .

The functions and effects of the above characteristic configuration are as follows.

Since a braking force is applied to the transported waste straw at each transfer section between the waste straw transport device and the auxiliary transport device and between this auxiliary transport device and the pack car, the waste straw that is sent out in an inclined position is Moreover, the volume of the transported waste straw becomes thicker as it moves from the waste straw transport device to the auxiliary transport device and from this auxiliary transport device to the pack car, so that the displacement of the transported waste straw can be corrected. Movement can also be suppressed.

Therefore, the disturbance of the conveying posture of the conveyed waste straw is minimized.
This makes it possible to improve the stock arrangement performance and separation performance of the bundling device. Moreover, it is possible to achieve economical efficiency by simply modifying the conveyance speed relationship and the conveyance path width relationship of the three as described above, without using any special device for correcting the disordered straw conveyance posture. We were able to implement it.

Hereinafter, embodiments of the present invention will be described based on the drawings.

The waste straw processing device of a combine harvester having the functions of a harvester and a threshing machine consists of a device that pinches and conveys the waste straw sent out from the threshing feed chain 2 of the threshing device 1 toward the rear inside the machine width. 3. A pair of auxiliary conveyance devices 4 that respectively hold the tip and the stock portion of the waste straw sent out from the waste straw conveyance device 3 and convey them along the direction of movement of the machine;
4, and the auxiliary conveyance device 4,
A disk-shaped cutter 5 for shredding the waste straw is disposed on the lower side of the 4, and behind the cutter 5 there is a bundling device 6 for tying and discharging the waste straw in fixed amounts. has been set up.

The straw removal conveying device 3 includes a conveying chain 3A with projections and a clamping rail 3B which is biased to move elastically close to the lower conveying action portion of the conveying chain 3A.
It is composed of.

The auxiliary conveying devices 4, 4 move the conveying chains 4A, 4A with protrusions and the clamping rails 4B, 4B, which are biased to move elastically toward the upper conveying action portion of the conveying chains 4A, 4A, in the direction of the length of the straw culm. At the same time, the conveyor chains 4A, 4A are oscillated around the driving rotation axis of the sprockets 4C, 4C at the conveyance end side, so that the straw removal is carried out horizontally or almost horizontally. It is configured to be able to freely switch between a binding processing state in which the waste straw is transported to the bundling device 6 and a shredding processing state in which it is retracted upward and allows the waste straw sent out from the waste straw conveying device 3 to fall and be supplied to the cutter 5. ing.

The bundling device 6 includes a bundling mechanism section 6A having a packer 8 for collecting and transporting the waste straw sent out from the auxiliary conveying devices 4, 4 into the bundling space 7, a needle 9 for supplying a bundling string, a building, and a string. A knotting mechanism section 6B having a holder is disposed facing each other on both sides of the bundling space 7.

Therefore, the conveying speed by the waste straw conveying device 3 is V ₁ , the conveying path width thereof is H ₁ , the conveying speed by the auxiliary conveying devices 4, 4 is V ₂ , and the conveying path width thereof
H ₂ , the conveyance speed by the packer 8 is V ₃ , and the width of the conveyance path at its operating point is H ₃ , the conveyance speed relationship among these three parties 3, 4, and 8 is V ₁ >V ₂ >V ₃
In addition, the relationship between the conveyance path widths is configured to satisfy H ₁ <H ₂ <H ₃ .

Clamping rails 4B, 4 of the auxiliary conveyance devices 4, 4
While the conveyance start ends 4b, 4b of B are wrapped around the conveyance device 3 in a posture perpendicular to or close to the conveyance direction of the straw removal conveyance device 3 in side view, the conveyance end portions 4b ₂ , 4b ₂ are Conveyance chain 4
A, 4A extends rearward than the terminal ends of the packers 8, 4A, and the extended end portions 4b ₂ , 4b ₂ are disposed along the distal end movement locus of the packers 8, 8 in side view. , 8 presser levers.

[Brief explanation of the drawing]

FIG. 1 and FIG. 2 are a side view and a plan view showing a waste straw processing device of a combine harvester. 1... threshing device, 3... straw conveyance device, 4...
... Auxiliary conveyance device, 5... Cutter, 6... Binding device, 7... Binding space, 8... Packer, V ₁ , V ₂ ,
V ₃ ... Conveyance speed, H ₁ , H ₂ , H ₃ ... Conveyance path width.

Claims (1)

[Scope of Claim for Utility Model Registration] A bundling device that is equipped with a packer 8 at the rear of the threshing device 1 for collecting and transporting the waste straw sent out via the waste straw conveying device 3 and the auxiliary conveying device 4 into the bundling space 7. In the waste straw processing device of a threshing machine in which the device 6 is installed, the conveyance speed by the waste straw conveying device 3 is V ₁ and the width of the conveyance path is V 1 .
H ₁ , the conveyance speed by the auxiliary conveyance device 4 is V ₂ ,
When the width of the conveyance path is H ₂ , the conveyance speed by the packer 8 is V ₃ , and the width of the conveyance path at the operating point is H ₃ , these three are 3, 4, 8.
A waste straw processing device for a threshing machine, characterized in that the conveying speed relationship is V ₁ > V ₂ > V ₃ , and the conveying path width relationship is H ₁ <H ₂ <H ₃ . . The auxiliary conveyance device 4 swings up and down about its conveyance end portion as a fulcrum, so that waste straw is supplied to the bundling device 6 and to the cutter 5 disposed at the bottom of the auxiliary conveyance device 4. A waste straw processing device for a threshing machine according to claim 1, which is configured to be switchable.