JPS5832566B2 - Mobile threshing machine's straw removal machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a mobile threshing machine for collecting and discharging waste straw in appropriate amounts using a collecting device that receives and supports the carried-out waste straw in a horizontal position and swings the discharge straw intermittently. Concerning Walladroppa.

Focusing and releasing the waste straw using the waste straw dropper,
There are cases where it is desired to release the material to a position that is offset laterally in the direction of the culm than the receiving and supporting position.

In other words, for example, when a straw dropper is connected to the rear of a threshing device mounted at the rear of a combine harvester, the combine harvester usually cuts while the side faces the uncut stem culm, By discharging the straw at a distance from the uncut stem culm, it is possible to prevent the waste straw from adhering to the uncut stem culm or stepping on it in the next process.

For this reason, conventional methods have been proposed, such as a conveying device that forcibly moves the bundled straw to one side using power when it is discharged, and a means that provides a guide to guide the bundled straw to one side. In the former case, the entire structure tends to be complicated and expensive due to the provision of a special conveyance device, and in the latter case, there is a problem in that the overall structure tends to be large in size due to the provision of a guide.

The present invention has been made with the above-mentioned circumstances in mind, and
A rising piece is provided in series on one end in the length direction of the waste straw culm of a collection device that receives and supports the carried-out waste straw in a horizontal position and swings to release it intermittently. It is characterized in that it is configured to be elastically displaced downward in the direction toward the one end side by the weight of the waste straw.

In other words, when the collecting tool is swung downward to release the waste straw, the component force of the weight of the waste straw that acts on the rising piece, which is elastically displaced downward by the weight of the waste straw, becomes smaller. As a result, it is possible to press and shift the waste straw to one side by the elastic return force of this rising piece. In particular, according to the present invention,
Since this can be carried out without providing any special conveyance device or guide as described above, the desired purpose can be achieved with an inexpensive and compact structure.

Embodiments of the present invention will be described in detail below based on illustrative drawings.

The figure shows a straw dropper 3 that receives, converges, and releases appropriate amounts of straw discharged from a combine harvester-equipped threshing device 1 and conveyed rearward by a rear straw chain 2 in a horizontal position. .

The waste straw dropper 3 is pivotally connected to a plate-shaped collection device 5 fixed to a horizontal shaft 4 rotatably supported around the axis, and an end of the collection device 5 on the side of the waste straw plant base. It is composed of a rising piece 6 made of synthetic resin.

The collection tool 5 is configured to be able to swing around the axis X of the horizontal shaft 4 and be freely switched between a substantially horizontal position for receiving waste straw and a downward swinging position for discharging waste straw. , by an elastic biasing mechanism consisting of a spring 7 and a cam elongated hole 8, it is elastically biased upward with a strong elastic force in the substantially horizontal position, and with a sufficiently weak elastic force after swinging slightly downward. It is structured as follows.

The rising piece 6 is configured such that its posture with respect to the collection tool 5 is fixed by bolting an arm 9 fixed to the rising piece 6 to a tongue piece 10 fixed to the horizontal shaft 4. At the same time, its elastic force is set so that it can be elastically displaced downward by the weight of the waste straw placed thereon.

Then, the waste straw discharged from the waste straw chain 2 and fed along the rear guide plate 11 is collected while being received and supported in a horizontal position by working together with the collecting device 5 and the rising piece 6. When a suitable amount of waste straw is collected and the collecting tool 5 swings downward a little, it is configured to swing downward into a steep bundle and release the collected straw, and is elastically moved downward by the weight of the waste straw. The displaced rising piece 6 is configured so that as the rising piece 6 swings downward, the force of the weight of the waste straw that acts on the rising piece 6 becomes lighter and returns elastically, thereby pushing the waste straw toward the tip side. There is.

In addition, Fig. 4A shows a state in which the waste straw from a long culm is received and concentrated, and Fig. 4A shows a state in which waste straw from a short culm is received and collected. In the case of culm bundling, the discarded straw can be received and supported while being displaced into a bent position by the rising piece 6, so that it is possible to prevent the discarded straw from slipping down on the plant base side, and in the case of short culm bundling. Since the rising piece 6 can cover the base of the waste straw from the side, it is possible to prevent the waste straw from being blown away by crosswinds or the like.

Further, the arm 9 is formed with an arcuate elongated hole 9a, so that the rising angle of the rising piece 6 with respect to the collecting tool 5 can be changed and adjusted depending on the straw removal conditions.

A notch A is formed on the swinging base side of the upright piece 6, which is convenient for discharging waste straw.

In other words, when the collecting tool 5 is swinging downward, the stock base of the waste straw, which will be described later, can be locked at the notch part A to prevent it from falling, and the collected waste straw can be prevented from falling. This is effective for properly discharging only straw, and the waste straw that is locked in the notch A will be dragged by other waste straws and ejected during the next discharge.

In addition, 12 in the figure is a rotary receiving blade 12a... and a rotary cutting blade 12b.
A waste straw cutter that shreds waste straw by cooperating with ..., and this cutter 1 is used instead of the waste straw dropper 3.
2 is used, the guide plate 11 is swung upward as shown by the imaginary line, and a guide rod 13 is provided to facilitate detachment of the straw from the chain 2.
The position will be changed to a downward swinging position as shown by the imaginary line.

In carrying out the present invention, as shown in FIG.
The stand-up piece 106 pivotably supported on the 05 so as to be vertically swingable may be elastically biased upward by the spring 14.

[Brief explanation of drawings]

The drawings illustrate an embodiment of the straw discharging dropper for a mobile threshing machine according to the present invention, in which FIG. 1 is a vertical side view, FIG. 2 is a cross-sectional plan view, FIG. 3 is a partially cutaway perspective view, and FIG. 4 is a cross-sectional side view. 5 is a schematic rear view showing a state in which the waste straw is placed, and FIG. 5 is a schematic rear view of another embodiment. 5... Collection tool, 6... Standing piece, 13
······Spring.

Claims (1)

[Scope of Claims] 1. A rising piece 6 is connected to one end in the longitudinal direction of the waste straw culm of the collecting tool 5 which receives and supports the carried-out waste straw in a horizontal position and swings to release it intermittently. Reference numeral 6 refers to a straw removal dropper for a mobile threshing machine, which is configured to be elastically displaced downward in the direction toward the one end by the weight of the removal straw placed thereon. 2. The straw dropper according to claim 1, wherein the rising piece 6 is made of synthetic resin. 3. The straw removal dropper according to claim 1 or 2, wherein the rising piece 6 is pivotally supported on one end side of the collecting tool 5 so as to be able to swing vertically, and is biased upward by a spring 13.