JPH0730010U - Combine grain culm raising device - Google Patents

Abstract

(57) [Summary] [Purpose] Even if the cutting width is widened for smooth splitting work and shore-side cutting, the grain culms that are fed in do not need to be pushed down in the direction in which the machine is moving. Provide a combine grain culm raising device that can always raise a proper grain culm posture. [Structure] The mounting intervals L'of the tines 20, 20 ... Provided in the grain stalk raising case 18a on the most cut land side are set to the tine 20, 20 ... Provided in the other grain stalk raising cases 18b, 18c.
It was made narrower than the mounting interval L of.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a grain culm raising device for a combine harvester in which a grain culm with a predetermined cutting width is raised by a tine provided in a case for raising grain culms and rotating upward.

[0002]

[Prior art]

 Generally, in a grain culm raising device of a combine, a grain culm raising case provided in one side of the front part of the machine and a grain culm raising case in the center are opposed to each other, as in the case of, for example, three-row cutting. Then, two culms are raised by the protruding tine, and a single culm is installed on the other side of the cut land, and the case is projected toward the center of the machine. It is known that it is caused.

[0003]

[Problems to be solved by the device]

 By the way, in the conventional combine harvester, the step allowance of the crawler traveling device extends beyond the cutting width toward the already-cut area in relation to the fall angle of the vehicle and the like. For this reason, in normal mowing, the overhanging crawler travels along the cutting mark, so there is no problem.However, when cutting in the middle or cutting along the shore, grain stalks are planted on both sides of the cutting width. The crawler stepped on the 4th grain culm outside the cutting width and disabled further cutting. Therefore, as shown in FIG. 6, the divider x attached to the grain culvert raising cases X, Y, and Z on the most already cut land side of the grain culvert raising cases X, Y, and Z is attached to the grain culvert raising cases more than the conventional pulling width B. If the cutting width A is displaced to the outside by a predetermined distance α and the cutting width A is also set to A + α, it is possible to cut the three crops w in the usual mowing operation, and the middle cutting method is also used. Since it is possible to cut four lines during the cutting work or the shoreside cutting, it is possible to prevent the crawler from stepping down the grain culm w and carry out the cutting work.

However, in the case of the above-mentioned structure, one extra row of grain culms w is fed into the single raising case X provided on the most existing cutting site side as compared with the case of ordinary mowing. As the amount of grain culm is increased, there is a delay in raising the grain culvert, which causes a difference in conveyance capacity from other raising lines, causing the grain culm w to be pushed down in the traveling direction and causing conveyance disturbance. However, it has a drawback that the threshing performance in the next process is significantly reduced.

The present invention was devised in order to solve the above-mentioned problems, and even if the cutting width is widened to smoothly carry out the dividing work and the shore-side cutting, the grain stalks to be cut extra. Therefore, it is possible to always raise the grain culm to an appropriate posture without pushing it down in the traveling direction of the machine, and to provide a grain culvert raising device in a combine that can maintain smooth and stable transport performance. It is what

[0006]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the technical means adopted by the present invention is to provide a plurality of grain culm raising cases with protruding tines at the front of the machine body, and to project from each grain culm raising case. In a grain culm raising device that raises a grain culm of a specified cutting width with a tine moving upward, the mounting intervals of each tine provided in the grain culm raising case on the side of the most already cut land are set to other grains. It is characterized in that it is made narrower than the mounting interval of the tines provided on the culm-raising case.

[0007]

[Action]

 Therefore, according to the present invention, the tines that rotate upward project from the plurality of grain culm raising cases provided in the front portion of the machine body to raise the grain culms. In order to smoothly perform the middle cutting work and shoreside cutting, even if the cutting width is wide, the tine installation intervals of the grain culm raising case provided on the side of the oldest cutting ground are small, so It is possible to reliably raise and convey the small amount of grain culm to be conveyed little by little, and it is possible to orderly transfer to the next process without delay in raising and conveying with other raising lines, and the whole combine including threshing performance. It is possible to smoothly perform a series of work.

[0008]

【Example】

 An embodiment of the present invention will be described in detail with reference to the accompanying drawings. In the figure, reference numeral 1 denotes a combine for three-row cutting, in which a pretreatment unit 4 is installed on the front part of a machine body 3 equipped with a crawler traveling device 2, and a grain culm raising device 5 is installed in the pretreatment unit 4. .. are provided, and dividers 7, 7, ... Are provided at the tips of the divider frames 6, 6 ,. A reciprocating-type cutting blade device 8 is disposed on the rear lower surface of the divider frames 6, 6 ..., and the grain culm w sown by the dividers 7, 7, ... After cutting, the stock of the grain culm w is cut by the cutting blade device 8, and the grain culm w that has been mowed is then transferred to the grain culm supply chain 11 via the horizontal carrier 9 and the vertical carrier 10, and is not shown in the figure. It is configured to supply cut culms to the threshing section.

The divider frames 6, 6, ... Support a cutting blade frame 8a for supporting the cutting blade device 8 on the base end side of the dividing frame 6, 6 at a predetermined interval with a pretreatment frame 12 as shown in FIG. A star wheel 14a is provided laterally between the left and right divider frames 6 and above the divider frames 6 and 6 ... 14b and 14c are arranged at the left and right and central positions, respectively, and feed chain mechanisms 15a and 15b are respectively provided behind the scraping conveyors 13. Further, each scraping transfer body 13 is formed by winding a transfer belt 17 formed by projecting transfer protrusions 16, 16 at predetermined intervals, and at the same time, the transfer protrusions 16, 16 ... As shown in FIGS. 3 and 4, the main projection 16a, which is inclined rearward with respect to the transport direction A, and the sub-projection 16b, which is inclined forward and has a rigidity less than that of the main projection 16a, intersect at approximately the center. Are integrally attached to the conveyor belt 17, and when the grain culms are conveyed, the secondary protrusions 16b prevent spillage of the cut grain culms supported by the main protrusions 16a.

On the other hand, as shown in FIG. 5, the grain culm raising device 5 comprises three sets of grain culm raising cases 18a, 18b and 18c arranged side by side in a forward inclined manner with a predetermined interval. , A plurality of tines 2 are respectively provided between a drive sprocket (not shown) having an inner diameter axially supported at the upper end of each grain culm raising case and a nail raising roller 19 rotatably supported at the lower end of each case. The chains 21 to which 0, 20 ... Are mounted are suspended, and the tines 20, 20 ... Protruded from the cases 18a, 18b and 18c are turned upward from the weeding position of each divider 7 to raise the grain culm w. The culm-raising case 18c arranged on one side of the machine body 3 and the culm-raising case 18b arranged in the center of the tine 20, 20 ... Caused two rows of grain culm w, and The single grain culm raising case 18a arranged on the side of the cut land causes one row of grain culm w to be raised by the tines 20, 20 ... projecting toward the center of the machine body, and each of the cases 18a , 18b and 18c, the tines 20, 20 ... provided in the grain culm raising case 18a arranged on the most cut land side are attached to the tines 20, 20 ... provided in the other cases 18b, 18c. It is mounted on the chain 21 at a mounting interval L'which is narrower than the interval L.

Further, the divider 7 of the grain culm raising case 18a is mounted on the cultivated land side on the outer side of the conventional pulling width B by a predetermined distance α, and is mounted accordingly. The cutting width A also spreads to A + α, and in the ordinary mowing operation, it is possible to mow 3 rows of grain culm w as in the conventional method, and 4 rows can be cut in the middle cutting work and the shore cutting. In addition, 22 is a parcel board which is attached to the side part of the case 18b for raising grain culms to form a path for raising grain culms w.

[0012] In the above-described configuration, when performing normal mowing, the three grain culms w sown by each divider 7 are raised by the grain culms and the cases 18a, 18b, 18c are raised, and the cutting blades are raised. The grain culm w cut by the device 8 is passed to the grain culm supply chain 11 via the horizontal carrier 9 and the vertical carrier 10 and supplied to the threshing unit (not shown).

Further, when the middle cutting work or the shore cutting is performed, the grain culms w are planted on both sides of the machine body, but the divider 7 attached to the grain culm-raising case 18a is set on the cultivated land side. Since it is displaced by the distance α, the four grain culms w are weeded and the grain culms are raised, the cases 18a, 18b, 18c are raised, and the cutting blade device 8 can mow the culms, and thus the cultivated land side The crawler traveling device 2 projecting to the bottom does not step on the grain cul w and disable the subsequent cutting.

In the process of raising the grain culm w as described above, between the grain culm raising case 18a arranged on the side of the oldest cut land and the shifting plate 22 provided on the grain culm raising case 18b side. In addition, one grain of extra grain culm w is fed in compared with the case of normal mowing, but the mounting interval L'of the tines 20, 20 ... Since the installation intervals L of the tines 20, 20 provided on the culm-raising cases 18b, 18c are set to be narrower, a small amount of the grain culms w are collected for each narrowed tine 20 and 20 to ensure the certainty. Even if the amount of grain culm is increased, there is no delay in raising the grain culm, and it is possible to prevent problems such as pushing down the grain cul w in the traveling direction of the machine body 3 and turbulence. You can change the work content such as normal mowing, splitting work or cutting along the shore. Regardless of the state, it is possible to carry out a smooth and reliable cutting work always causes the culms w the proper attitude.

[0015]

[Effect of device]

 In short, the present invention provides a plurality of grain culm raising cases each having a tine that appears and disappears in the front part of the machine body, and each tine that protrudes from the grain culm raising case and moves upwards has a predetermined cutting width. In the grain culm raising device designed to raise the culm, the mounting interval of each tine provided in the grain culling raising case on the side of the oldest cutting site is narrower than the mounting interval of the tines provided in other grain culm raising cases. Therefore, even if the cutting width is widened, the tines with a narrower mounting interval on the side of the most already cut land can be used to cut the grain culms excessively even if the cutting width is wide in order to smoothly perform the middle cutting work and the shoreside cutting. Since it is possible to collect a small amount of each tine and securely raise it, it is possible to eliminate the pushing down of the grain culm in the traveling direction of the aircraft and transfer it to another grain culm raising case. Always bring up the proper grain culm appearance without delay It can, usually around mowing can be done breaking work or the banks during orderly reaper threshing work without any form of work contents, such as cutting medium is intended to achieve the very usefulness practical effect.

[Brief description of drawings]

FIG. 1 is a front side view of a combine.

FIG. 2 is a plan view of a main part.

FIG. 3A is a perspective view of a main part of a transport protrusion. (B)
FIG. 6 is a cross-sectional view of a conveyor belt provided with conveyor protrusion tines.

FIG. 4 is a partially omitted plan view of a scraping carrier.

FIG. 5 is an overall front view of the combine with a part thereof omitted.

FIG. 6 is an overall front view of a conventional combine with a part thereof omitted.

[Explanation of symbols]

 3 Airframe 5 Grain culm raising device 18a Grain culm raising case 18b Grain culm raising case 18c Grain culm raising case 20 Tine w Grain culm L'mounting space L mounting space

Claims (1)

[Scope of utility model registration request] 1. A plurality of grain culm raising cases provided with tines that appear and disappear, are provided in the front part of the machine body, and each grain culle raising case projects a grain culm of a predetermined cutting width with a tine protruding upward from the case. In the grain culm raising device configured to do so, the mounting intervals of the tines provided in the grain culling raising case on the side of the oldest cut land are made narrower than the mounting intervals of the tines provided in other grain culm raising cases. Combine grain culm raising device characterized by.