JP2889801B2 - Combine waste processing unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine straw processing section in which a shredded straw diffusion device is provided below a disk type straw cutter.

[0002]

2. Description of the Related Art As a chopping straw diffusion apparatus used in the above-mentioned straw processing section, for example, as disclosed in Japanese Utility Model Laid-Open Publication No. 1-108048, a disk with blades is driven to rotate around a longitudinal axis. Such a configuration has been put to practical use.

[0003]

The above-mentioned shredded straw diffusion apparatus has a feature that it has a high diffusion function and can effectively spread and shred the shredded straw in the field. Since it is placed on the board and rotated and scattered, a sufficiently large interval for scattering the shredded straw is required between the disk with wings and the disc-shaped straw cutter to sufficiently spread the chopped straw It was to be. As a result, the shredder spreader is installed at a considerably lower position at the rear end of the threshing device, and if the fuselage leans backward when the combine passes over a step such as a ridge, the shredder spreader may collide with the ground. Had occurred. An object of the present invention is to easily perform maintenance such as replacing a rotary blade of a disc-shaped straw cutter while improving the shredded straw diffusing device so that the shredded straw diffusing device can be installed high from the ground. It is an object of the present invention to provide a combine straw processing unit capable of performing the following.

[0004]

According to a feature of the present invention, a shredded straw dispersing device is provided below a disk-shaped straw cutter. A diffusion case supported on the cutter case of the disk-type straw cutter so as to be able to swing up and down around a rear fulcrum, and a horizontal screw laid on the diffusion case, and the horizontal screw is attached to the rear fulcrum. Attached to the diffusion case at a more forward position, the horizontal screw is configured to be capable of changing its position to an operation position where it enters the lower part of the disc-shaped straw cutter and a maintenance position retracted below the cutter. At one point.

[0005]

According to the above arrangement, a part of the chopped straw dropped from the disc-shaped straw cutter is contacted with the rotating horizontal screw and bounced laterally, and the other part is a horizontal screw. And fall as a whole, and the chopped straw is discharged into the field in a dispersed state as a whole. In this case, since the chopped straw is subjected to the scattering action in the horizontal direction while passing from the top to the bottom of the horizontal screw, there is no particular need for a large scattering space above the horizontal screw, and the disc-shaped discharge is not required. Even if the horizontal screw is placed sufficiently close to the straw cutter, no functional failure occurs. In addition, the shredded straw diffusion device capable of disposing the horizontal screw sufficiently close to the disc-shaped straw cutter in this way, the horizontal screw is laid horizontally at a position in front of the rear fulcrum in the diffusion case. Because the center of gravity is located ahead of the rear fulcrum, when the fixing at the working position is released, the horizontal screw is retracted below the disk-type straw cutter, and the maintenance position is moved around the rear fulcrum. This causes the body to oscillate under its own weight. Thereby, when performing maintenance such as replacing the rotary blade of the disc-shaped straw cutter, there is no need to operate the chopped straw diffusion device from the operation position to the maintenance position, and the horizontal screw becomes an obstacle. The rotary blade can be easily replaced without any inconvenience.

[0006]

Thus, according to the present invention, a combine straw processing unit which can easily perform maintenance of a disk type straw cutter while allowing the shredded straw diffusion device to be installed high from the ground. Could be provided.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG.
And is connected to the fulcrum 2 so as to be able to swing up and down freely, and a threshing device 5, a grain collection tank 6, a boarding operation section 8 and the like are mounted on the traveling vehicle body. The processing unit 7 is provided to constitute a self-contained combine.

As shown in FIGS. 2 to 5, in order to form the straw processing section 7, a disc-shaped straw cutter for chopping the straw discharged from the rear end of the threshing device 5 in a sideways position. 10 is provided on the upper part, and a shredded straw diffusion device 11 for dispersing the shredded straw falling from the disc-shaped straw cutter 10 in the lateral direction of the body and discharging it to the ground is provided below the cutter.

The disk-type straw cutter 10 is a high-speed rotating shaft 1
Cutting blade 14 equipped with multiple disk blades 14a in parallel with 4b
And a supply blade 15 having a large number of disk blades 15a mounted in parallel on a low-speed rotating shaft 15b, and a horizontal support for a cutter case 12 attached to the rear end of the threshing device so as to be rotatable around a vertical shaft core 13. The cutting case 14 and the supply blade 15 can be maintained from a wide space by pivotally opening the cutter case 12 rearward about the vertical axis 13 to the rear.

The cutting blade 14 located at the rear of the case
Is supported by the cutter case 12 so that it can be attached and detached as follows. That is, while the cutter case 12 is opened and rotated around the vertical shaft core 13 and separated from the machine body, the pulley 18, the gear 19, and the bearing 20 bolted to the left side plate 12a are removed from the rotating shaft 14b. Bearing 21 bolted to right plate 12b
The cutting blade 14 can be moved up and down by a long opening 22 of the left side plate 12a and an opening 23 of the right side plate 12b and the bulging portion 24 outside the case in a state where is removed from the rotating shaft 14b. As shown in FIG. 6, the right side of the cutting blade 14 can be moved forward and backward by the bulging portion 24 outside the case of the right side plate 12 b. It can be attached to and detached from the cutter case 12.

The diffusion case 25 of the shredded straw diffusing device 11 is attached to the disc-shaped straw cutter 10 so as to be swingable around a rear fulcrum 26 and to be fixed in a working posture by bolts 27, and to be twisted in opposite directions. A horizontal screw 28 formed by attaching the left and right spiral blades 28a, 28b to the rotating shaft 28c is supported by a horizontal shaft at a position in front of the rear fulcrum 26 in the inside of the diffusion case 25, and the thin screw dropping from the disk-type straw cutter 10 By hitting the cut straw with the spiral blades 28a and 28b and bouncing it in the lateral direction of the machine, and selecting the rotation direction of the lateral screw 28, the distribution of the chopped straw discharge can be equalized in the machine width direction, or the chopped straw can be removed. To be collected in the center of the fuselage.

That is, in order to be able to switch the rotation direction of the lateral screw 28, as shown in FIGS. 7 and 8, a driving sprocket 29 fixed to the rotational shaft 14b of the cutting blade 14, and a rotational shaft 28c of the lateral screw 28 The first chain 33 extends across the first passive sprocket 30, the passive sprocket 31 of the intermediate shaft and the tension ring 32
And a second chain 36 is wound around a second passive sprocket 34 loosely fitted on the rotation shaft 28c of the lateral screw 28 and a reverse rotation sprocket 35 integrally rotating with the passive sprocket 31 of the intermediate shaft.
The clutch piece 38 that can be slid freely is spline-fitted to the rotary shaft 28c of the lateral screw 28 so that the clutch piece 38 can be selectively engaged with the first passive sprocket 30 and the second passive sprocket 34. When the clutch piece 38 is engaged with the second passive sprocket 34, the horizontal screw 28 is rotated in the forward direction, and the horizontal screw 28 is rotated in the forward direction. It is configured so that the straw can be collected in the center of the right and left sides of the machine.

Further, the shredded straw diffusion device 11 is arranged so that the upper portion of the horizontal screw 28 enters the lower portion of the cutter case 12 when the horizontal screw 28 is in an intended operation position. Height above ground. And the chopping straw diffusion device 1 by the bolt 27
When the fixing in the working posture of 1 is released and the diffusion case 25 of the shredded straw diffusion device 11 is lowered and swung around the fulcrum 26, the lateral screw 28 retreats to the maintenance position which is largely removed from the cutter case 12 downward. Then, the shredder straw diffusion device 11 does not hinder the attachment and detachment of the cutting blade 14.

A rear skirt 39, a right skirt 40 and a left skirt 41 are hingedly connected to the diffusion case 25 of the shredded straw diffusion device 11 so as to be able to swing up and down. As can be suppressed at 41,
In addition, the skirts 39, 4 are folded under the shredded straw diffusion device 11 during the non-working traveling and are raised and swung.
Fix 0, 41 with bolts, etc.
It is configured to prevent damage due to a ground collision of 0,41.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the accompanying drawings.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine.

FIG. 2 is a rear view of a straw processing unit.

FIG. 3 is a view taken in the direction of arrows AA in FIG. 2;

FIG. 4 is a view taken in the direction of arrows BB in FIG. 2;

FIG. 5 is a view taken in the direction of arrows CC in FIG. 2;

FIG. 6 is a plan view showing the state of attachment and detachment operation of the cutting blade.

FIG. 7 is a side view showing a driving unit of the shredded straw diffusion device.

FIG. 8 is a view taken in the direction of arrows DD in FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Disc-shaped straw cutter 11 Shredded straw diffusion device 12 Cutter case 25 Diffusion case 26 Rear fulcrum 28 Lateral screw

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-62-224208 (JP, A) JP-A-1-165313 (JP, A) JP-A-1-108046 (JP, U) (58) Survey Field (Int.Cl. ⁶ , DB name) A01F 12/40 302 A01F 29/12

Claims (1)

(57) [Claims] 1. A combine straw disposing device having a shredded straw diffusing device (11) below a disc-shaped straw cutter (10), wherein the chopped straw diffusing device (11) is mounted on the disc. Mold straw cutter
-The rear fulcrum (2) is attached to the cutter case (12) of (10).
6) Diffusion case (2)
5), and a horizontal slide suspended by the diffusion case (25).
Clew (28), and
The screw (28) is positioned before the rear fulcrum (26).
Attached to the diffusion case (25) at one side, the position can be changed between the operation position where this lateral screw (28) enters the lower part of the disc-shaped straw cutter (10) and the maintenance position retracted below the cutter. Straw Discharge processor combine that is configured such that.