JPS5915866Y2 - Grain raking device in combine harvester - Google Patents

Description

[Detailed explanation of the invention] This invention is a combine harvester that reaps the husks planted in the field while traveling in the field, and threshes the harvested husks. A pair of left and right raking conveyance belts that divide the weeded husk stock base into two husk conveyance paths and rak and convey them rearward in the direction of the cutting blade are tilted rearward and upward, and the above-mentioned two husk culms are The base portions of the shell culms transported along the conveyance path are arranged so as to merge with each other at the conveyance end portions of the two conveyor belts, and when viewed from above, one of the two shell culm conveyance paths A culm scraping device including the above-mentioned scraping conveyance belt in a combine that is provided with a tip conveyance belt that vertically conveys the tip of the cut culm along a tip conveyance path located on an extension of the conveyance path. It is something.

As mentioned above, a pair of raking transport belts are provided on the left and right sides to actively rak and transport the base of the two-rowed culm, which has been spread out and separated from side to side, toward the cutting blade. For example, a combine harvester designed to improve the cutting condition by
It is known from Japanese Patent No. 0-96541, and the tip side of the cut husk culm is vertically conveyed by the above-mentioned tip conveying belt from the confluence point of the culm base with the left and right rake conveyance belts toward the threshing section. It is said that

In this type of combine harvester, which actively rakes and transports the base of the uncut culm in the direction of the cutting blade, it is difficult to move the culm at a position where the tip side of the culm comes off the culm lifting device during raking and transport. The vertical posture of the culm, which is actively transported only on the plant side, tends to collapse, and as a result, at the culm confluence point between the left and right scraping conveyor belts, the culm that has been conveyed in different directions is greatly disturbed. This tends to cause problems in subsequent transportation and threshing.

The object of this invention is to provide a novel culm scraping device for a combine harvester of the type mentioned at the outset, which eliminates the above-mentioned problems without substantially complicating the structure.

Regarding the illustrated embodiment, to explain the structure of the shell culm scraping device according to this invention, in the reaping section of the combine shown in Figs. 2 is a weeding board for separating the culms; 2 is a lifting case that is installed diagonally upward in the rear direction to raise the planted culms after weeding; 3 is a cutting blade for cutting the planted culms at the base of the plant. However, this reaping section is provided with the following means as a culm conveying means.

That is, there is a carrying-in belt 4 for scraping, which is installed diagonally rearward and upwardly at the frontmost part of the conveying mechanism, and carries out scraping and conveying for the culm, and following this conveying belt 4, scraping and conveying is carried out for the base of the culm. a star wheel 5; a horizontal conveyance belt 6 which takes over from the star wheel 5 and conveys the culm stock head in the direction of the stock vertical transport belt 7; the above-mentioned stock transport belt 7 which vertically conveys the shell culm stock head; An ear tip conveying belt 8 is provided which inherits the shell culm tip side from the conveying belt 4 and conveys it vertically.

Of the above-mentioned shell culm conveyance means, the scraping conveyance belt 4 is the third.
As shown in the figure, there are 4 pieces, depending on the number of cutting rows.
The two pieces form a pair, and the arrows P1. P
Along the culm conveyance path shown by 2, the culm is raked and conveyed rearward in the direction of the cutting blade 3 at the base of the stock.

Further, the ear tip conveyance belt 8 includes both culm conveyance paths P1. of each pair of conveyance belts 4. In order to carry out the vertical conveyance of the tips of the cut culms from the collection point P2, as shown in Figures 1 and 3, a pair with different inclination directions in plan view is provided. A tip conveyance path Q1 located on an extension of the end conveyance path P1. The tip is conveyed vertically along Q2, and both routes Q1
．． From the gathering point of Q2, follow route Q1 to threshing room handling room 9.
The tip is transported to the entrance.

Culm conveyance path P1 by the scraping conveyance belt 4. P2, as shown in FIG. 3, culm guide rods 10 and 11 are provided, and for the tip conveyance belt 8, both tip conveyance paths Q1. A culm guide plate 12 provided with guide surfaces 12a and 12b along Q2 is provided so as to be inclined rearward and upward.

As clearly shown in FIG. 3, each of the above-mentioned tip conveying bands 8 is particularly connected to each tip conveying path Q1. Q2 extends above the conveyance belt 4 along each outermost shell culm conveyance path P1, which is located on the extension line in plan view, and conveys the plant base side along the conveyance path P□. The tip side of the shell culm that is raked and conveyed by the band 4 is actively supported and conveyed above the conveyance path P1 by the extending end of the ear tip conveyance band 8.

Further, as shown in FIGS. 2 and 3, the culm guide rods 10 and 11 described above have a grass dividing rod 13 with the grass dividing plate 1 fixed at the tip.
It is installed on.

In particular, the tip conveying path Q1 by the tip conveying belt 8. Q
A culm guide rod 10 is disposed along the culm conveying path P1 by the conveying belt 4, which is located on the extension line when viewed from above, and is substantially parallel to the tip conveying belt 8 with the same rising angle as the conveying belt 4. In contrast, the tip conveyance path Q1. Culm guide rod 1 along the culm conveyance path P2 on the side not along Q2
1, as shown in FIG. 2, the rising angle is larger than that of the conveying belt 4, and the free end is raised toward the tip conveying belt 8 and facing the vicinity of the conveying belt 8.

In Figures 1 and 2, reference numeral 14 denotes a foot chain that inherits the husk stock head from the stock head conveyance belt 7, transports it backward, and supplies the husk tip side into the threshing section handling room 9, and 15 is a handling room. 9 is a handling trunk provided inside, 16 is a crawler for running the aircraft, 17 is
is the passenger seat of the combine harvester shown.

The culm scraping device shown in FIGS. 1-3, as described above,
The ear tip conveying belt 8 is extended above the scraping conveying belt 4 along the culm conveying path P1, and the scraping conveying belt 4
Among the culm guide rods 10 and 11 along
1. Culm conveyance path P2 on the side where Q2 is not located on the extension line
Since the culm guide rod 11 is provided with a large rising angle, among the two culms spread out by the weed dividing board 1, the plant base is moved along the culm conveyance path P1 on one side by the conveyance belt 4. The culms that are raked and conveyed on one side have their tip side supported by the extension of the ear tip conveying device 8, and are supported in an orderly upright position and are raked and conveyed in that state, and the culm on the other side is also raked and conveyed. The culms that are scraped and conveyed from the plant side by the conveyor belt 4 along the conveyor path P2 are scraped while their tip side is supported by the culm guide rod 11 that rises upwards away from the conveyor belt 4. Since the shell culms are conveyed and raked while being maintained in the same vertical position, the two groups of shell culms that have flowed from different directions are placed in an even and orderly standing position at the confluence of both shell culm transport paths P1 and P2. After that, the harvested husk culms are vertically conveyed in an orderly direction toward the threshing section.

In addition, the above-mentioned culm guide rod 11 guides the tip side of the culm, which is conveyed by the scraping conveyance belt 4 along the culm conveyance path P2, in the direction of the ear tip conveyance belt 8, so that the tip side of the culm is transferred to the ear tip conveyance belt 8. Even if it gets better, the tips of the two groups of culms flowing from different directions will become tangled at the confluence of the two culm conveyance paths P□ and P2, since they do not act to press the 8 directions of the tip conveyance zone. In the above embodiment, the existing culm guide rod 11 was provided with a large rising angle, but the culm guide rod 11 was provided with a large rising angle. In other embodiments, as shown in FIG.
Above the culm guide rod 11' which is equal to the rising angle of the conveyor belt 4, a culm guide rod 20 whose rising angle is larger than the rising angle of the conveyor belt 4 may be separately provided.

As described above, the culm raking device in the combine harvester of this invention removes the culm stock root part divided by the - weeding plate 1 into two parts.
Culm conveyance path P1. P2, the pair of left and right scraping conveyor belts 4, 4 which scrape and convey rearward in the direction of the cutting blade 3 are tilted rearward and upwardly, and the two-shell culm conveyance path P1. P
The base portions of the shell culms conveyed along the two conveyor belts 4, 4 are arranged so as to merge with each other at the end of the conveyance by the two conveyor belts 4, 4, and the two shell culm conveyance paths P□, P2
A tip conveyance path Q1. which is located on an extension of one of the conveyance paths P1. In a combine harvester that is provided with a tip conveyor belt 8 that vertically conveys the tip of the harvested culm along the direction Q2, the tip conveyor belt 8 is extended above the scraping conveyor belt 4 along the one conveyance path P1. In addition to extending it, the above-mentioned 2
Culm conveyance path P1. Of the two culm guide rods provided along P2, one of the culm guide rods 10 along the above-mentioned conveyance path P1 is viewed from the side, and the inclination angle in the rear upward direction with respect to the scraping conveyance belt 4 is determined. A shell culm guide rod 11°2 which is substantially equal to the tip conveying belt 8 and extends along the other conveying path P2.
0 is characterized in that it is provided with a larger inclination angle in the rear upward direction than the scraping conveyance belt 4 so that the rear end rises toward the ear tip conveyance belt 8 when viewed from the side. In a combine harvester designed to improve reaping performance by actively scraping and conveying the planted culm in the direction of the cutting blade, as described above, the extension part provided on the tip conveying belt 8 and the same tip Due to the rising and inclined posture of the shell culm guide rod 11.20 along the scraping conveyance belt 4 on the opposite side of the conveyance belt 8, which shell culm conveyance path P1. In order to maintain an orderly vertical posture of the shell culms that are raked and transported along P2, the shell culms of both groups are merged in an orderly vertical posture, and the harvested shell culms are then transported vertically and threshed. In addition, the culm guide rods 11 and 20 improve the transfer of the culm, which is conveyed along the conveyance path P2 that intersects with the ear tip conveyance belt 8, to the ear tip conveyance belt 8, while also improving both conveyance paths. P1. Threshing performance is not inhibited without causing problems such as entanglement or entanglement of the tips of the P2 shell culms.

However, the culm scraping device of this invention has a configuration in which the tip conveying belt 8 is slightly longer than the conventional one, and the culm guide rod 1.
Since the above-mentioned advantages are obtained by giving the above-mentioned posture to 1 and 20, the same advantages can be obtained with an extremely simple structure.

[Brief explanation of drawings]

Fig. 1 is a plan view showing the front part of a combine equipped with an embodiment of this invention, Fig. 2 is a schematic side view of the front part of the combine, Fig. 3 is a schematic plan view of only the main parts, and Fig. 3 is a schematic plan view of only the main parts. FIG. 4 is a perspective view showing another embodiment. DESCRIPTION OF SYMBOLS 1... Grass dividing board, 4... Conveyance belt for raking, 8... Spike tip conveyance belt, 10... Culm guide rod, 11... ...Culm guide rod, 11'...Culm guide rod, 13...Culm guide rod, 20...Culm guide rod, Pl, P2... Culm conveyance path, Ql,
Q2...Spike tip conveyance route.

Claims (1)

[Scope of utility model registration request] The base of the husk culm, which has been divided by the first weed dividing board 1, is transferred to the second husk culm conveyance path P1. P2, the pair of left and right scraping conveyor belts 4, 4 which scrape and convey rearward in the direction of the cutting blade 3 are tilted rearward and upwardly, and the two-shell culm conveyance path P1. P2 is arranged so that the base portions of the shell culm are conveyed along the conveyance belts 4, 4 so as to merge with each other at the end of the conveyance by the two conveyor belts 4, 4, and the two shell culm conveyance paths P1. A tip conveyance path Q1 located on an extension line of one of the conveyance paths P1 of P2.
．． In a combine harvester that is provided with a tip conveying belt 8 that vertically conveys the tip of the harvested culm along Q2, the tip conveying belt 8
, the scraping conveyance belt 4 along one of the conveyance paths P1 described above.
It extends above the two-shell culm conveyance path P1. Of the two culm guide rods provided along P2, one of the culm guide rods 10 along the above-mentioned conveyance path P1 is viewed from the side, and the inclination angle in the rear upward direction with respect to the scraping conveyance belt 4 is determined. The culm guide rods 11 and 20 are arranged substantially equally and parallel to the ear tip conveying belt 8 and along the other conveying path P2 so that their rear ends rise toward the ear tip conveying belt 8 when viewed from the side. A culm raking device for a combine harvester, characterized in that the culm raking device is provided with a larger rear-upward inclination angle than the raking conveyor belt 4.