JPS5825781Y2 - Grain culm guiding device in multi-row combine harvester - Google Patents

Description

[Detailed description of the invention] The present invention relates to a device for guiding the culm to the culm pretreatment section attached to the front of the machine in a multi-row combine harvester. When guiding the culm to the culm raking part after weeding by the pair of elastic guide rods, the culm can be reliably and smoothly guided by the pair of elastic guide rods.

Next, an example of the present invention will be explained with reference to the drawings. In the drawing, 1 is a machine body supported by a pair of running rollers 2, and a threshing device 4 having a foot chain 3 is provided on the upper surface of the machine body.

Reference numeral 5 denotes a culm pretreatment device attached to the front part of the machine body 1 so as to be raised and lowered by a hydraulic cylinder 6. At the lower end of the device, a pair of weeding bodies 7, 7 and a cutting blade device 8 are installed at the front part. A pair of culm lifting devices 9 are installed at the inner positions of both the cuttings 7, 7.
, 9 are provided, as well as a lower conveying device 10, which will be described later.
It is provided with an upper conveying device 11 and a vertical conveying device 12 for conveying the shell culms from these to the foot chain 4.

The lower conveyance device 10 is configured as follows.

That is, in the figure, reference numeral 13.13 denotes culm scraping wheels disposed on both sides of the upper part of the reaping blade device 8, and both wheels 13.13 are rotated from the frame 14 to an upright shaft 15 so as to mesh with each other. An auxiliary conveyor belt 19 with lugs is attached to the upper part of the wheel and is wound between a pulley 16 attached to the upper surface of the wheel and a pulley 18 at the tip of a belt cover 17 attached to the upper end of the shaft 15. The auxiliary conveyance bells 19 and 19 are arranged in a V-shape so that their tips spread outward in plan view, and one of the scraping wheels 13 has a shell between it and the clamping rod 20. A chain wheel 22 around which an endless conveyance chain 21 that clamps and conveys the culm is wrapped around.
is integrally provided, and by rotationally driving the conveyor chino 21,
Both raking wheels 13.13 and both auxiliary conveyor belts 19.
19 rotate in the directions of arrows, thereby forming a pair of left and right shell culm scraping mechanisms.

Reference numeral 23 denotes a weed cutting body located between both of the raking wheels 13.13, and the grass cutting body 23 is formed in an arrow shape such that the width gradually increases toward the rear in plan view, and the width is reduced at the rear end. It is attached to the frame 14 in this state.

Reference numerals 24 and 24 denote shell culm derivatives made of spring wire located on both left and right sides of the grass cutting body 23, and both derivatives 24, 24 are as follows:
In plan view, it is formed into a bilaterally symmetrical inward dogleg shape with the weeding body 23 in between, and the two derivatives 24 and 24 are attached at their tips to the lower surface of the weeding body 23 with bolts 25, while their rear ends are attached to the weeding body 23. It is provided in an inclined cross shape with respect to the weeding body 23 in side view so as to be located above the upper surface, and when both the induction bodies 24.24 are elastically deformed inward so as to approach each other, both the induction bodies 24. Derivative 24
．． 24 is constructed so that the middle part thereof comes into contact with the left and right side surfaces of the grass cutting body 23.

The reaping blade device 8 includes a fixed blade 26 disposed perpendicular to the direction of movement of the combine harvester and a movable blade 27 slidably provided on the upper surface of the fixed blade 26. The fixed blade 26 is pressed against the upper surface of the fixed blade 26 by an elastic press plate 30 which is tightened together with the fixed blade 26 by a bolt 29 for attaching the fixed blade 26 to a mounting piece 28 fixed to the movable blade 27. The trochanter 34 of the bell crank lever 33 pivotally mounted on the frame 14 is inserted and engaged into the guide groove 32 of the interlocking body 31, and the lever 33 is inserted into the crank mechanism 34.
The movable blade 27 is configured to reciprocate from side to side by swinging and rotating the movable blade 27 in the left and right directions.

In this configuration, when the combine is moved forward, the grain stalks to be planted in the field are divided into left and right sides at the center dividing body 23.
The tip side of the culm is pulled up by the culm pulling devices 9, 9, and the base of the grain culm is pulled up by the derivatives 24, 24 on both sides of the cutting body 23.
(both auxiliary conveyance bells)) 19.19, and along the way, it is harvested by the reaping blade device 8.

The harvested grain culms are then transferred to the raking wheel 13.
13, then the conveyor cheno 21 and the clamping rod 2
0, and is conveyed backwards with the stock part being clamped, and then transferred to the vertical conveyance device 12 from the terminal end of the conveyance chain 21, and then conveyed to the foot chain 3.

Both derivatives 24 are arranged on both sides of the grass cutting body 23.
．． In guiding the shell culm to the two scraping wheels 13.13 by the shell culm, the two guide members 24.24 each elastically deform inwardly corresponding to the shell culm. Since there is nothing to restrict the inward elastic deformation of 24, the rear ends of both guides 24.24 cross each other due to their elastic deformation, and as a result, the rear ends of one of the guides are guided by the other. This will obstruct the flow of the shell culm inside.

In contrast, in the present invention, both the guides 24, 24 are attached to the lower surface of the weeding body 23 at their leading ends, and are attached to the weeding body 23 in side view so that the rear ends are located above the upper surface of the weeding body 23. In contrast, the guide members 24.24 are provided in an inclined cross shape so that when both the guide members 24.24 are elastically deformed inward so as to approach each other, the middle portions of both the guide members 24.24 come into contact with the left and right side surfaces of the weeding body 23. Since both derivatives 24.
After the middle part of 24 comes into contact with the side surface of the weeding body 23, a large external force is required for further inward elastic deformation, and the culm flows normally along both the induction bodies 24 and 24, and both raking wheels 13° When the two derivatives 24, 24 are properly raked at 13, no large external force acts on the two derivatives 24, 24, and the midway portions of the two derivatives 24, 24 are directed inward beyond their contact with the side surface of the weeding body 23. It does not undergo elastic deformation.

Therefore, during normal guidance of the culm, the inward elastic deformation of both guides 24, 24 is regulated by the splitting body 23, and the rear ends do not cross each other. The grain culm can be guided smoothly and reliably without obstructing the flow of the culm along the guide.

When regulating the inward elastic deformation of both the guides 24, 24 as described above, a regulating member is provided at the rear ends of both the guides, and the rear ends are brought into contact with this regulating member to regulate the inward elastic deformation. This means that when the culm becomes clogged at the point where the culm is scraped into the raking mechanism such as the raking wheel 13. Therefore, the clogging cannot be loosened by the elastic deformation of these two induction bodies, and damage to the scraping mechanism such as the scraping wheel cannot be avoided.

In contrast, in the present invention, as described above, both derivatives 24.
The inward elastic deformation of the derivatives 24 and 24 is regulated by bringing the midway portions into contact with the weeding body 23. Since it can still be elastically deformed inward even later,
When the culm becomes clogged at the raking point of the raking mechanism such as the raking wheel 13.13, the rear ends of both the induction bodies 24, 24 are damaged by the large external force caused by the clogging. It will elastically deform to escape from the scraping mechanism such as No. 13, thereby loosening the clog.

As a result, damage to the scraping wheels 13, 13 can be avoided.

Therefore, according to the present invention, it is possible to smoothly and reliably guide the culm to the raking wheel, and it is also possible to reliably prevent damage to the raking mechanism such as the raking wheel due to clogging of the culm. Moreover, since the splitting body is used to regulate the inward elastic deformation of the homologous conductor, the structure is not only simplified and the number of parts is reduced, reducing costs, but also improving the durability of the homologous conductor. It has the effect of

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a side view of the combine harvester, FIG. 2 is a plan view thereof, FIG. 3 is an enlarged plan view of the main part of the preprocessing section, and FIG. 4 is an IV view of FIG. 3. -IV sectional view, 5th
The figure is an enlarged plan view of the reaping blade device, and Figure 6 is the VI- of Figure 5.
FIG. 7 is a cross-sectional view taken along II-VII in FIG. 5. 9... Culm lifting device, 13... Scraping wheel, 19... Auxiliary conveyance belt, 23...
... branch, 24... derivative.

Claims (1)

[Scope of utility model registration request] In a multi-row mowing combine harvester, in which guide members made of an elastic material and bent inward in a dogleg shape are arranged on both left and right sides of a cutting body extending forward from between a pair of left and right culm raking mechanisms, both the above-mentioned guide members are provided. is fixed to the lower surface of the weeding body at its tip, and is provided in an inclined cross shape with respect to the weeding body in side view so that the rear end is located above the upper surface of the weeding body, thereby reducing the inward elasticity of both derivatives. A culm guiding device for a multi-row mowing combine harvester, which is configured such that the middle portions of both guide members come into contact with the left and right side surfaces of a cutting body during deformation.