JPH086429Y2 - Combine harvester structure - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is provided with a lower cutting device for cutting a root end of a planted culm and an upper cutting device for cutting a portion above the cutting culm. The present invention relates to a combine harvester structure that is configured to carry only the landing site of the above into the threshing device.

[Conventional technology]

In the structure of the harvesting part of the combine at the beginning, Japanese Patent Application Laid-Open No. 1-
In some cases, as shown in Japanese Patent No. 256312, the first mowing device and the second mowing device were formed into a clipper type, and the cutting blade was reciprocally slid at a predetermined stroke by a driving means utilizing a crank mechanism. .

[Problems to be solved by the device]

In the above-mentioned conventional configuration, the driving directions of the two cutting blades are reversed to cancel the inertia of both cutting blades to reduce the driving vibration. However, the cutting blade moving direction is reversed at the stroke end. Impacts are unavoidable and still generate considerable vibration and noise.

The present invention has been made in view of the above circumstances, and an object thereof is to suppress the generation of vibration and noise due to the driving of the cutting blade by unifying the driving direction of the cutting blade to a fixed direction.

[Means for solving the problem]

The characteristic structure of the present invention is that the cutting blade structure of the combine harvester described above is constructed by forming a series of endless strips of the cutting blades of the upper cutting device and the lower cutting device, and guiding the cutting blade into a substantially rectangular shape in a front view. The lower side portion of the quadrangle is configured as the cutting action portion of the lower mowing device, and the upper side portion of the quadrangle is configured as the cutting action portion of the upper mowing device.

[Action]

An endless band-shaped cutting blade that is guided in a substantially quadrangle and continuously rotated in a certain direction cuts the root end of the planted grain culm at the lower side of the quadrangle, and cuts it from the root end at the upper side of the quadrangle. Cut the upper part.

[Effect of device]

As described above, in the present invention, since the endless strip-shaped cutting blade is continuously rotated in a fixed direction, the inertial vibration and the shock vibration at the stroke end, which are seen in the clipper-type cutting device, do not occur at all, and the drive is extremely quiet. You can now do.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 5 shows an all culm input type combine according to the present invention. In this combine, a pre-mowing treatment part (3) is attached in front of a machine frame (2) equipped with a pair of left and right crawler traveling devices (1), and a threshing device (4) mounted on the machine frame (2) mounts the harvested grain. It is configured so that only the tip side of the culm is thrown in to thresh. The crawler traveling device (1)
4 is constructed by winding a crawler belt (8) around a drive sprocket (5), a tension roller (6), and six grounding rollers (7), as shown in FIG. 4, and By supporting the grounding wheel group (7) on the free ends of the three balance arms (10) pivotally supported on the track frame (9) so as to be movable up and down, unevenness of the running surface can be obtained. Correspondingly, the crawler belt (8) is deformed so that it can run with less vibration.

As shown in FIG. 2, the pre-mowing processing unit (3) includes a raising device (11) and upper and lower mowing devices (12), (1).
3) and a rear transport device (1 that holds and transports the harvested culm to the rear.
4), an auger (15) that laterally merges the cut culms that have been conveyed to the middle of the cutting width, and a feeding and conveying device (16) that conveys the collected culms to the threshing device (4). ) Etc. are equipped.

As shown in FIG. 1, the upper stage mowing device (12) and the lower stage mowing device (13) have two upper and lower receiving blades (1
7) and (18), and an endless band-shaped cutting blade (19) which is guided along the two receiving blades (17) and (18) in a substantially rectangular shape in a front view. As shown in FIG. 3, the cutting blade (19) has a saw-tooth (19a) formed on one side edge of the steel belt, and is formed in a so-called band saw shape. The cutting blade (19) has four rollers (20). The winding blade is wound to give a sufficient tension, and at least one roller (20) is rotationally driven in a fixed direction to continuously rotate the cutting blade (19) in the fixed direction.

Therefore, the quadrangular upper side portion of the cutting blade (19) wound in a substantially quadrangle serves as a cutting action portion of the upper stage cutting device (12), and the quadrangular lower side portion of the cutting blade (19) forms the lower stage cutting device (13). Functions as a cutting action part.

Further, in order to slightly incline the upper and lower mowing devices (11) and (12) respectively, the rotation axis of each roller (20) is slightly inclined to the front downward, and as a result, the upper mowing device (11) ) Is located in front of the fuselage from the lower harvesting device (12).

According to the above configuration, while introducing the planted culm raised by the raising device (11) into the rear transfer device (14), the upper stage cutting device (12) cuts the upper part of the planted culm, Immediately hold the cut tip side part and transport it backward. Next, the long stumps remaining in the field are cut by the lower cutting device (13) and left in the field.

Incidentally, as shown by the phantom line in FIG. 3, the cutting blade (19)
By forming the driving holes (21) at a constant pitch over the entire length of the blade and driving the cutting blade (19) with the driving sprocket, powerful driving without a stop is possible. Further, in order to configure the endless belt-shaped cutting blade (19), a cutting blade can be attached to each link of the endless chain to form a so-called chain saw.

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

[Brief description of drawings]

The drawings show an embodiment of the combine harvester structure according to the present invention. Fig. 1 is a front view of the harvester, Fig. 2 is a side view of the harvester pretreatment unit, and Fig. 3 is a plan view of the blade. FIG. 4 is a side view of the crawler traveling device. FIG. 5 is an overall side view of the combine. (4) Threshing device, (12) ... the above-mentioned mowing device, (13) ...
Lower reaping device.

Claims (1)

[Scope of utility model registration request] 1. A lower reaping device (13) for cutting a root end of a planted culm and an upper reaping device (12) for cutting an upper part thereof, and threshing only a grained part of the cultivated culm. A harvesting part structure of a combine configured to be carried into a device (4), wherein the upper harvesting device (12) and the lower harvesting device (1)
The cutting blade (19) of 3) is constructed in a series of endless belts, and the cutting blade (19) is wound around in a substantially square shape in front view and driven to rotate.
A combine harvester structure in which the lower side portion of the quadrangle is configured as a cutting action portion of the lower stage harvesting device (13) and the upper side portion of the quadrangle is configured as a cutting action portion of the upper stage harvesting device (12).