JPH06253664A - Waste straw treating structure of combine harvester - Google Patents

Abstract

PURPOSE:To surely transfer waste straw to a binding apparatus by guiding waste straw supplied from a waste straw transfer mechanism to a waste straw cutter or a binder by a switchable guiding means and placing an assistant transfer means on the waste straw transfer path in a specific state. CONSTITUTION:Waste straw supplied from a waste straw transfer mechanism 1 is guided to a waste straw cutter 2 or a binding apparatus 3 by opening and closing a cover 11 around a lateral shaft P together with a transfer face 11a fixed to the cover. The binding apparatus has a knotting bill 7 and a string holder 8 under the apparatus over a waste straw collection space S and a rake-in packer 9 and a needle 10 above the apparatus. An assistant transfer apparatus 4 is placed in a state flush with the transfer face 11a and made to act when the cover 11 is in closed state. The waste straw on the waste straw transfer path R is forcedly transferred to the collection space S by this mechanism.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a straw processing device in a combine equipped with both a straw cutter and a straw bundling device, and more specifically, to better fill the bunch space with straw. Technology.

[0002]

2. Description of the Related Art As this type of straw treatment structure, that is, a structure in which shredding and binding are selectively used by opening and closing a cutter cover, for example, the one disclosed in Japanese Utility Model Laid-Open No. 4-365417 is known. Therefore, there is an advantage that the cutter and the binding device can be selectively used by a simple operation of only opening and closing the cover. In this technique, the knotting portion of the binding device is an upper packer structure located below the binding space, and although the knotting portion has a surface where dust is likely to get in, the swabing action of the scraping packer is applied to the straw from above. Therefore, it is possible to satisfactorily focus the straw in the bundling space without causing the straw to float and escape, and at the same time, there is an advantage that the discharge door is retracted upward and does not interfere with the discharge straw bundle. Further, as shown in Japanese Utility Model Laid-Open No. 4-77745, there is also known a lower packer structure in which the knot portion is located above the binding space. There is a risk that the straw will float and the discharge door that will be displaced at the lower fulcrum will interfere with the discharge straw bundle, but it is difficult for dust to collect in the knot part, or the continuous drive shaft such as the packer shaft is below and the drive structure is simple It has the advantage of being easy to put together. These upper and lower packer structures are properly used depending on the size and model of the combine.

[0003]

In the transportation of stem culms by the feed chain, it is not always the case that the culms are transported in uniform amounts, but in some cases, the stems are often transported in a high volume in which they are agglomerated. . Then, the high efficiency of combine work in recent years is promoted, the threshing process is speeded up, and the straw, which has become a considerably high-volume stalk culm, may be sent to the binding device. In such a case, it is conceivable that even the straw treating device having the upper packer structure which is excellent in the scraping action cannot be sufficiently fed into the binding space due to the scraping action of the scraping packer. An object of the present invention is to ensure transfer of the straw discharged from the straw conveying mechanism to the binding device in the combine straw treating apparatus having the upper packer structure.

[0004]

In order to achieve the above object, the present invention provides a straw bundling device at the rear part of a straw cutter, and a straw-bucking posture is supplied from a straw conveying mechanism. Equipped with switching guide means that can selectively switch between a shredding form for guiding straw to the straw cutter and a binding form for guiding the straw to the binding device through the straw transfer path on the upper part of the straw cutter. A nodule building and a string holder are located below the straw converging space.
In addition, it is configured such that the scraping packer and the needle for collecting straw are arranged above each, and assists to continuously apply the forced transfer force toward the convergence space to the straw existing on the straw transfer path. It is characterized in that the conveying means is configured and equipped in a state in which the switching guide means functions when the switching guide means is operated to change the brace to reveal the bundling form.

[0005]

That is, since the straw fed from the straw feeding mechanism is forcibly transferred to the bundling device by the auxiliary feeding means, a high-volume straw lump or a quantity of straw discharged per unit time becomes remarkable. Even if it increases, it can be sent without being unable to transfer, and its forced transfer force continuously acts, so that it can be transferred reliably without clogging. Therefore, it is possible to properly use the straw shredding work by the cutter and the straw bundling work by the binding device in the straw processing device having the upper packer structure.

[0006]

As a result, the work forms of both the straw shredding work with the cutter and the straw bundling work with the bundling device can be well expressed regardless of the high volume straw transfer, and the combine harvester It was possible to provide a straw processing device having an upper packer structure that can cope with improvement in work efficiency without inconvenience.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 show a straw processing device A provided at the rear part of the combine, 1 is a straw conveying mechanism, 2 is a cutter for shredding straw, 3 is a binding device for binding straw, and 4 is It is an auxiliary transport device (auxiliary transport means) that sends the straw toward the binding device 3. The cutter 2 is composed of front and rear rotary blades 5 and 6 which rotate in mutually different directions so as to draw in the straw that is dropped and transferred, and these rotary blades 5 and 6 are arranged side by side in a lateral direction. A cover (corresponding to a switching guide means) 11 that covers the upper surface of the cutter 2 is configured to be openable and closable around a horizontal axis P extending in the left-right direction at the rear portion thereof. 1
The reference numeral 1a designates a carrying surface adapted to the auxiliary carrying device 4, which is fixedly attached to the tip of the cover 11.

The auxiliary transporting device 4 includes a drive wheel 12, a tension wheel 13 and a fixed wheel 14 on the lower side, and a chain 15 with a protrusion.
Is wound around and is swingably and upwardly supported about the rotation axis Z of the drive wheel 12.
Then, the case 4a of the auxiliary transport device 4 and the cover 1
The tip end of 1 is connected by a rod 16, and as shown in FIG. 2, the auxiliary transporting device 4 also swings as the cover 11 opens and closes, so that the binding form and the shredding form can appear without any inconvenience. Is done. As a result, the auxiliary conveyance device 4 that continuously applies the forced transfer force toward the focusing space S to the straw existing on the straw transfer path R above the cover 11,
It is configured to be functional when it is operated to open upward, which is a brace that reveals a binding form.

The bundling device 3 has an upper packer structure in which the nodule building 7 and the string holder 8 are arranged below the straw collecting space S, and the scraping packer 9 and the needle 10 for collecting the straw are arranged above. It is configured. Further, above the straw transfer route R, there is disposed a drive scraping rotator 22 which acts on the straw passing therethrough from above, and by this and the auxiliary transport device 4, the straw is bound in a bound form. It is surely sent to the binding space S. This scraping rotor 2
2 and the drive wheel 12 of the auxiliary transporting device 4 are both structured to receive power from the constantly driven packer shaft 18 (chain mechanism or the like).

When the cutter 2 is used to shred the straw, the cover 11 is swung to an open posture, and the lower surface 11k of the cover 11 rotates the straw supplied from the straw conveying mechanism 1. It functions as a guide surface for shredding for guiding and transferring to the blades 5 and 6. In order to bind the straw with the binding device, the cover 11 is closed. In this closed closed state, the upper surface of the cover 11 collects the straw fed from the straw transport mechanism 1 in the space S. The cover 11 functions as a bundling guide surface for guiding and transferring the cover 11. The swinging open / close position of the cover 11 is set so that both of these functions can be exerted. By the way, as shown in FIG. 2, the take-in locus L of the packer 9 has a substantially oblong shape in an oblique direction, and there is a portion that interferes with the open cover 11 and the transport surface 11a.
Therefore, in order to prevent the cover 11 and the packer 9 from interfering with each other when the cutter is used in which the cover 11 is in the open state, the bundling device is in a state in which the packer 9 is present in the front upper moving portion Lu in the scraping movement locus L thereof. A fixed-position stop clutch B for stopping 3 is provided in the drive system of the binding device 3. That is, a drive system for the binding device 3 is shown in FIG. 3, where 17 is an input shaft, 18 is a packer shaft, 19 is a transmission shaft, 20 is a needle shaft, and 21 is a knot shaft. A one-rotation clutch mechanism C having a known structure is constructed over the entire range. The fixed position stop clutch B is provided on the input shaft 17 to which power is input from the traveling machine body.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a side view showing a straw processing device at the rear of the combine.

FIG. 2 is a side view showing the opened / closed state of the cover.

FIG. 3 is a development view showing a drive system for the binding device.

[Explanation of symbols]

 1 Straw carry-out mechanism 2 Straw cutter 3 Straw bundling device 7 Nodule building 8 String holder 9 Scraping packer 10 Needle 11 Cover R Straw transfer path S S Straw gathering space

Front page continued (72) Inventor Nobuyoshi Hatanaka 64 Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Sakai Factory Co., Ltd. (72) Kazutaka Oka 64, Ishizukita-machi, Sakai City Osaka Prefecture Kubota Sakai Factory, Ltd.

Claims (1)

[Claims] 1. A straw bundling device (3) is arranged at a rear portion of the straw cutter (2), and the straw in a sideways posture supplied from the straw transport mechanism (1) is the straw cutter. A switching guide that can be selectively switched between a shredded form guided to (2) and a bundling form guided to the bundling device (3) through the straw transfer route (R) above the straw cutter (2). Means (11)
The knotting device (3) is provided with a knotting building (7) and a string holder (8) below the straw-collecting space (S), and above the straw-packing packer (9) for collecting straw. Needle (10)
And the auxiliary transporting means (4) for continuously applying the forced transfer force toward the focusing space (S) to the straws existing on the straw transfer path (R). A combine straw-discharging structure which is configured and equipped so that the switching guide means (11) operates when the switching operation is performed on the arbor which reveals the bundling form.