JPH0335070Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a grain culm conveying structure for a combine harvester. The present invention relates to a stock transport mechanism configured to combine and transport grain culms from three endless rotating bands without providing a transport structure.

[Conventional technology]

Conventionally, there has been a structure for conveying harvested grain culms in a combined manner without providing a lateral conveyance structure, such as the above-mentioned plant conveyance mechanism, as shown in, for example, Japanese Utility Model Application No. 57-67523. This was done for the structure of the cited example, which was further provided with one endless rotating band for transporting the stocks, and was configured for use with 5 or 6 rows.

Further, as an example of a grain culm conveying structure, a structure for five rows is shown in FIG. 5.

That is, the first endless rotating belt 7 transports the harvested grain culms from the pair of rotating packers 5d and 5e, and the second endless rotating belt 7 transports the harvested grain culms from the rotary packer 5c to the first endless rotating belt 7. Rotating belt 8, the grain culm from the second endless rotating belt 8 joins the grain culms from the pair of rotary packers 5a, 5b on the lower side of the conveying side than the merging position, and the third endless rotating belt 9 is used to transport the grains at the base of the stock. The structure is composed of the five rotary packers 5a, 5b, 5c,
5d and 5e are arranged in parallel in the left-right direction.

[Problem that the invention attempts to solve]

Furthermore, when the stock transfer mechanism is constructed as shown in FIG. 5, the transmission structure for driving it is usually formed by rotating wheels 7b and 8b at the rear around which three rotating bands 7, 8, and 9 are wound, respectively. , 9b are to be rotated. However, if it is attempted to arrange the transmission shaft etc. in this way, there will be a problem between the rear end of the second endless rotation band 8 and the conveyance path R ₁ of the first endless rotation band 7, and between the rear end and the third endless rotation band 7. It is necessary to secure a space for conveyance between the rotation band 9 and the conveyance path R ₃ , and therefore it is necessary to arrange a transmission shaft or the like for driving the second endless rotation band in a detour structure. There is a problem that the resulting equal transmission structure tends to be complicated.

Furthermore, when the rotary packers are arranged in parallel as shown in the figure, there is a problem that the width of the conveying structure tends to increase.

An object of the present invention is to simplify the transmission structure for driving the second endless rotation band and to reduce the width of the conveying structure through reasonable modification.

[Means for solving problems]

The features of the present invention include a first endless rotation belt for transporting the harvested grain culm, a second endless rotation belt for joining the conveyed grain culm with the first endless rotation belt, and a second endless rotation belt for transporting the grain from the second endless rotation belt. A third endless rotating band that joins the transported grain culms to the lower side of the conveying side from the culm merging position constitutes a stock conveying mechanism, and a rotating shaft of the rear wheel around which the second endless rotating band is wound, and a second 3. The rotating shafts of the rear wheels around which the endless rotating band is wound are interlocked and connected via a transmission mechanism, and
Drives one of the two rotating shafts, and is provided coaxially with the front wheel around which the second endless rotation band is wound, and the front wheel around which the third endless rotation band is wound. The rotating packers are overlapped at a certain point when viewed in the direction of the rotational axis, and their functions and effects are as follows.

[Effect]

If the above characteristics are configured as shown in FIG. 1, for example, by driving and rotating the rear wheel body 9b of the third endless rotation band 9, this driving force is transmitted through the transmission mechanism 20 with the gear structure shown in FIG. The rear wheel body 8b of the second endless rotation band 8 is driven to rotate, and the rotation gear 5 at the front of the two rotation bands 8 and 9 is driven to rotate.
Since b and 5c are overlapped, the arrangement width of the rotary packer can be reduced.

[Effect of idea]

Therefore, by arranging a transmission mechanism with a relatively simple structure such as gears and duplicating the rotating gears, only two transmission structures are required instead of three, and the transmission structure is simple. Moreover, the width of the conveying structure can be reduced.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

As shown in FIG. 4, a combine harvester is constructed by connecting a five-row reaping pretreatment section B to the front end of a traveling vehicle body A on which a threshing device 1 is mounted.

As shown in the same figure and FIG. 4. Five rotary packers 5a, 5b, 5c, 5d, 5e arranged in the left-right direction; auxiliary conveyance devices 6a, 6b, 6c of a rubber belt structure with protrusions provided forward from the top of each of the five rotary packers;
6d, 6e, on the same axis as the rotating gear car 5e on the right end,
The first endless rotation band 7 for holding the stock head, with its front wheel 7a disposed thereon, is coaxial with the central rotating pin car 5c.
A second endless rotation band 8 for holding the stock head, in which the front wheel body 8a is disposed, is placed on the left side of the central rotary pin car 5c, coaxially with the adjacent rotary pin car 5b in a non-occlusal state when viewed in the axial direction. , a third endless rotation band 9 having a front wheel 9a thereon, a first ear tip conveying mechanism 10 provided on the top of the first endless rotation band 7, and a third endless rotation band 9 provided on the top of the second endless rotation band 8. It is composed of a second ear tip conveyance mechanism 11, a third ear tip conveyance mechanism 12 provided on the upper part of the third endless rotating band 9, a clamping conveyance mechanism 13 for adjusting the handling depth, a clamping conveyance mechanism 14 for relaying, and a first The conveyance system is configured such that the grain culms from the second endless rotation belt 8 and the third endless rotation belt 9 are combined and conveyed to the endless rotation belt 7 and are supplied to the feed chain 15 of the threshing device 1. It has been done.

The three endless rotation bands 7, 8, and 9 are each formed of a chain with a protrusion, and the front wheels 7a, 8a, 9a and the rear wheels 7b, 8b, 9b
consists of a sprocket. Further, the three ear tip conveying devices 10, 11, 12 have locking claws 16.
There are many undulating structures.

The reaping pre-processing section B is swung up and down by a hydraulic cylinder 17 around a left-right axis P formed at the front end of the traveling vehicle body A, and the clamping and conveying mechanism 13 for adjusting the handling depth is moved up and down around an axis P formed at the front end of the traveling vehicle body A. It is configured to be driven and moved by a hydraulic cylinder (not shown).

In the reaping pre-processing section B, the drive structure of the three endless rotating bands 7, 8, and 9 for transporting the plant base is configured as follows.

That is, a transmission system (not shown) is formed to drive and rotate the rear wheel body 7b of the first endless rotation band 7, and as shown in FIG. The drive shafts 18 and 19 of the rear wheels 8b and 9b of the rotation band 9 are interlocked and connected by a transmission mechanism 20 having a gear structure, and the shaft is connected to the drive shaft 18 on the second endless rotation band 8 side. A bevel gear mechanism 22 is provided to transmit the power from 21.

Moreover, above the two drive shafts 18 and 19,
A guide plate 23 that guides the grain culm as shown in FIG.
A guide rail 24 is provided which is biased in the direction of the first endless rotation band 7.

As shown in FIG. 1, a first conveyance path R1 is formed on the left side of the first endless rotation band 7, and a second conveyance path _R1 is formed on the side of the first conveyance path _R1 of the second endless rotation band 7. A conveyance path R ₂ is formed, and a third conveyance path R ₃ is formed on the left side of the third endless rotation band 9.
Clamping rails 25, 26, and 27 are provided along the three transport routes _R1 , _R2 , and _R3 , respectively.

Furthermore, rollers 29 and 30 are rotatably supported at both ends of a scale-shaped arm 28 between the second endless rotation band 8 and the third endless rotation band 9, and the scale-shaped arm 28 is biased by a spring. A tensioning mechanism C is provided.

[Another example]

In addition to the embodiments described above, the present invention may be implemented by forming a transmission system so that the power is transmitted to the drive shaft on the third endless rotating belt side, or by installing a rotating gear on the right side of the central rotating gear. Arranged in occlusal state,
It may be implemented by configuring for 6 lines.

[Brief explanation of the drawing]

The drawings show an embodiment of the grain culm conveying structure of a combine harvester according to the present invention, FIG. 1 is a schematic plan view showing the structure, FIG. 2 is a schematic plan view showing the arrangement of guide plates, and FIG. FIG. 4 is a side view of the front part of the combine, and FIG. 5 is a schematic plan view of a conveyance structure showing a comparative example. 5... Rotating pack car, 7... First endless rotating belt,
8... Second endless rotating belt, 8a... Rear wheel body, 9...
...Third endless rotation belt, 9b... Rear wheel body, 18...
Rotating shaft, 19... Rotating shaft, 20... Transmission mechanism.

Claims (1)

[Scope of utility model registration request] a first endless rotating belt 7 for conveying the harvested grain culm;
A second endless rotation band 8 for merging the transported grain culms with the endless rotation band 7, and a third endless rotation for merging the transported grain culms on the lower side of the transport side from the merging position of the grain culms from the second endless rotation band 8. The moving belt 9 constitutes a stock transport mechanism, and also includes a rotating shaft 18 of the rear wheel 8b around which the second endless rotating band 8 is wound, and a rotating shaft 18 of the rear wheel 9b around which the third endless rotating band 9 is wound. A front wheel body 8a that connects the rotating shafts 19 in conjunction with each other via a transmission mechanism 20, drives one of the rotating shafts 18 and 19, and around which the second endless rotating band 8 is wound. , and rotary packers 5c and 5b provided coaxially with the front wheel body 9a around which the third endless rotary band 9 is wound, respectively, are overlapped when viewed in the direction of the rotation axis.