JPS58121714A - Grain stalk guide apparatus in combine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a power transmission device for a 3- to 4-row mowing machine.

Combine harvesters and binder reapers are equipped with a dividing body that separates the culms in the field and determines the cutting width, a lifting device that lifts up and conveys the tip of the husks, and a device that erects the husks that have fallen down. A cutting blade that reaps the root portion, a scraping device that guides the cut husk culm to a conveyance path, and a raking device that captures the tip and root portions of the husk culm and conveys them toward a threshing machine or the like. It is equipped with a frame photographing and transmitting device.

There are many types of such reapers, ranging from small machines that cut 2 rows to large machines that cut 5 to 6 rows, depending on the number of rows to cut the culm. The numbers are different. Of these, 3 to 4 are relatively in high demand.
Conventionally, row trimmers are generally equipped with four cutting bodies and a 3-@ pulling device, and the culm can be guided one row at a time between adjacent cutting bodies or two rows guided to one of them. After being pulled up in a row pulling path, the bundles are combined into a single bundle by a conveying device and conveyed.

However, such conventional 3- to 4-row reapers,
The lifting device, conveyance device, etc. are all large and have complex structures in relation to the number of rows to be cut, making it difficult to provide them at a low price.
)Ta. However, if you cut 3 rows by guiding 2 rows of culms between one side of the adjacent grass cuttings with a 2-row mower and guiding 1 row of husks between the other side of the grass, the result will be 'f1m' at the base of the plant. If rows with a width of In many cases, this is not carried out smoothly.

Therefore, a small auxiliary pulling device is installed in the middle of the pair of left and right pulling devices, and the 3 to 4 culms that have been raked out by the 4 splitters are separated by the left and right pulling devices and the auxiliary pulling device. Between 1
Progress is being made in the development of reapers that guide, raise, and transport rows, rows, or two rows at a time. However, in such a reaper, by providing an auxiliary lifting device, the culm is pulled up and the culm spreads out on the conveyance path, and the culm does not cross each other or get hit by members in the conveyance path. This was an obstacle in the development of the seed harvester, as there is a risk that the ears may break or fall off due to loose grain.

The present invention is based on the above-mentioned points, and includes an auxiliary side provided in the middle of a pair of left and right main lifting devices. ,
By surrounding the support pipe that connects the rear side of the raising device and the branching pipe that extends forward along the ground with a shell culm guide fixed to the auxiliary raising device, smooth transportation of the shell culm can be achieved. Spear breakage due to entanglement of the culm.

The present invention provides a culm guide device for a reaper that is designed to prevent the occurrence of grain shedding. Embodiments of the present invention will be described in detail below with reference to the drawings.

Figures 1 to 3 show an example in which the present invention is applied to a reaper for a 3- to 4-row harvester, and Figure 1 shows a part of the reaper, thresher, and running section of a combine in which the present invention is implemented. FIG. 2 is a side view, and FIG. 2 is a plan view showing a part of the reaper and thresher, and FIG. 3 is a plan view of the reaper excluding the culm conveying device. In the figure, a frame 3 of a threshing machine 2 housing a handling cylinder for threshing and a sorting device is mounted on a running frame that connects rollers 1 running on the left and right, and a frame 3 for threshing is mounted on the side of the frame 3. A feed chain 4 for conveying the shell culms is stretched. A pipe-shaped reaping frame 5 extending obliquely downward from the center in the width direction of the machine is attached to a pivot portion of a reaping bearing (not shown) provided at the upper front end of the frame 3.
The transmission shaft 6 is pivotally supported by the reaping frame 5, and is drive-coupled with the driving side via the reaping drive shaft pivotally supported by the reaping bearing. There is.

The lower part of the reaping frame 5 and the front end of the traveling frame are connected by a hydraulic cylinder T.
The entire reaping machine 10 supported by the reaping frame 5 is raised and lowered by operating a lever to extend and retract the hydraulic cylinder 7.

Reference numeral 11 denotes a reaping gear box connected to the lower end of the reaping frame 5, and a bearing member 1 that is orthogonal to the reaping frame 5.
1a and a support member 11b extending forward from both ends thereof, it is formed into a U-shape, and a lifting drive shaft 12, which is drivingly connected to the transmission shaft 6, is penetratingly supported in the bearing member tta. There is. Furthermore, a support pipe 1 extending in the machine width direction in parallel with the bearing member 11a is provided at the front end of the support member 11b.
3 and four weeding pipes 14, 15, 16, and 17 extending forward along the ground at equal intervals in the y direction. At the front ends of the grass pipes 14 to 11, there are grass dividing bodies 19 and 20 that determine cutting amplification by cutting through the culms of the field as the machine moves forward.
21 and 22 are fixed respectively.

Also, diagonally below the reaping gear box 11, there is a weeding body 1.
A clipper-shaped cutting blade 23 for cutting off the base of the culm that has been raked by the weeding pipes 9 to 22 is supported by a trellis orthogonally to the weeding pipes 14 to 1T, and is installed close to the ground. 23a is a drive portion of the cutting blade 23.

A pulling pipe 24 projects diagonally upward from both ends of the bearing member tta of the reaping gear box 11, and the left and right pair of main pulling devices 25 and 26 are connected to the upper end of this pulling pipe 24. section and said outer weeding pipe 14.1
7 and are supported at both upper and lower ends and are erected at an angle. This main lifting device 25.26 is a lifting case 2T.
and a lifting chain stretched between the sprockets in both upper and lower ends thereof, and the upper sprocket is connected to the bearing member 11a via a transmission shaft 28 which is supported by penetrating the inside of the lifting pipe 24. It is drivingly connected to the inner lifting drive shaft 12. The pulling chain driven in this way has a plurality of lugs 29 running together with it.
are arranged at regular intervals, and by running with the base slidingly in contact with the lug guide inside the lifting case 27, the lifting case stands up only at the lower end of the lifting case 27 and inside in the machine width direction. It is configured to protrude from 2T.

Furthermore, the bearing member 11fi and the support pipe 13 are
It is connected by a transmission gear box 30 in the vicinity of the support member 11b on one side.
A transmission shaft is supported through the transmission gear 6, and is drivingly connected to the transmission drive shaft 12 in the bearing member 11a by a gear device in the transmission gear box 30. Weeding pipe 16
A support pipe 31 projects obliquely upward from the central part of the auxiliary lifting device, which is designated by the reference numeral 32 as a whole. It is erected. This auxiliary lifting device 32 is provided with a lifting case 33 that is parallel to and shorter than the lifting case 27 of the main lifting device 25, 28, and sprockets 34 are provided in both upper and lower ends of the lifting case 33. There is. A pulling chain with a plurality of lugs 35 is stretched between the upper and lower sprockets 34.
4 and the pulling transmission shaft in the weeding pipe 16 are drivingly connected to a transmission shaft 36 which passes through the support pipe 31 and is pivotally supported via bevel gears sy and go. The lug 35 of the hoisting chain that is driven and travels in this manner has its base abutted against a lug guide provided inside the hoisting case 33, thereby connecting the lower end of the hoisting case 33 and the main hoisting device 25 side. It is configured to stand up only on the lifting path and protrude from the lifting case 33. Reference numeral 39 denotes a triangular protrusion in side view, which is protruded from the front surface of the raising case 33 facing the field and separates and combs the tips of the culms.

A scraping bearing 40 projects diagonally upward from the transmission gearbox 30, and is drivingly connected to the lifting drive shaft 12 in the bearing member 11a by a gear device in the transmission gearbox 30. A raking drive shaft 41 is pivotally supported. This scraping drive shaft 41 includes a scraping belt 43 made of synthetic rubber having a plurality of lugs 42 integrally formed during molding, a rotating scraping body 44 formed in the shape of a gear, and a sprocket (not shown). The bearing members 11a and 45 are mounted on the shaft in order from the top, and a conveyor chain 46 is stretched between the sprocket and the sprocket 45 on the bearing member 11a side.

Further, a raking bearing 47 is similarly supported by the support member 13 and provided at a symmetrical position of the raking bearing 4o with respect to the center in the width direction of the machine, and the raking shaft 47 pivotally supported by the raking bearing 47 has the following features: It has the same structure as the previous book, in which a scraping belt 48 that rotates as the culm passes and a rotary scraping body 49 are pivoted.

Both of the raking belts 43.4m are arranged in a V-shape, and their belt cases are supported by support rods fixed to the outer weeding pipes 14.17. Also,
From the weeding pipe 15, 16 in the center, the culm guide 5o, which is bent into a dogleg shape, is arranged so that one side is along the conveyance path of the culm stock source by the raking pel (43, 48). It is provided protrudingly adjacent to the grass dividing pipes 15 and 16. Further, in the lifting cases 27 of both of the main lifting devices 25, 26, a triangular plate-shaped culm guide plate 52, 53 for guiding the culm to a conveying path by a scraping belt 43, 48 is provided. It is provided to protrude so as to extend in the direction.

The rear surface of the lifting case 33 of the auxiliary lifting device 32 is provided with a U shape in plan view so as to surround the support pipe 31.
A culm guide plate 54 formed in a letter shape projects rearward, and the surfaces of the raising case 33 and the culm guide plate 54 are continuous from the front surface of the case 33 to the scraping part. It is formed as follows.

Reference numeral 33a is an ejection hole for discharging straw waste and the like inside the case 33.

What is designated as a whole by the reference numeral 55 is a culm conveying device, which includes a root conveying device 58 consisting of a root chain 56 and a peg 5T supported along its running end, a tip chain with a lug 59, and a lug 59. The tip conveying device 61 includes a tip guide 6o supported along the tip leading trajectory.

The operation of the nine-row reaper configured as described above will be explained by taking three-row reaping as an example. When the machine moves forward, it will plant 3 seeds in the field.
The culms of the rows are separated by the grass cutting bodies 19-22 and guided between the adjacent grass cutting bodies 19.20, 20°2j and 21.22. Furthermore, as the machine moves forward, the lug 29.3 of each hoisting device 25°26.32 approaches the base of each culm.
5 rotates around while standing up at the lower end of the lifting case 27.33, the culm is scooped up by the lug 29.35, and then the tip is conveyed by the upward movement of the lug, causing the fallen culm to stand up. . In this case, two of the three strips stand up in the lifting passage between the main lifting device 25 and the auxiliary lifting device [32], and the remaining one stands up in the main lifting device 26.
stand up by One of the two culms standing up on the pulling device 25, 32 side is guided and conveyed along the culm guide plate 52, outside the culm guide 50, to the conveyance path of the scraping belt 48, In addition, the other one moves along the culm guide plate 54. Further, the culm standing up on the side of the main lifting device 26 is guided and conveyed along the culm guide 51 between the culm guide plates 53 and 54 to the conveyance path of the scraping belt 43. The three-stranded culm transported in this way pulls up the tip,
At the same time as being released from the devices 25, 26, and 32! The root portion is cut off by the cutting blade 23. Then, the culm is scraped toward the center by the rotating raking body 44 that rotates in the direction shown by arrow A in the figure and the other rotating raking body 49 that rotates as the culm moves, and the culm is conveyed along the conveying path of the culm conveying device 55. The root and tip of the culm that has been raked into the frame are photographed and transmitted by frame photographing devices f58 and 61.
After each grain is captured by the thresher 2, it is transported to the threshing machine 2 and threshed.

In such a reaping machine 10, an auxiliary pulling device 11
By providing the shell culm guide plate 54 at the rear of the i32, the shell culm being lifted and transported does not get entangled with the support pipe 31, and the 2
Since the shell culms of the rays and the shell culms raised by the pulling device 26 are completely separated up to the scraping part, the shell culms do not become entangled with each other. Particularly in this embodiment, since the surface of the lifting case 33 and the surface of the culm guide plate are formed continuously, the culm is smoothly conveyed by being raked from the initial stage of raising. In addition, in the case where the straw removal hole 33a is provided as in this embodiment, the strength of the lifting case 33 is reduced and the culm guide plate 5
This is reinforced by providing 4.

In this embodiment, an example is shown in which a culm guide plate 54 formed of a plate material is provided as a culm guide, but the culm guide may be formed of several tubes or rods. You may.

As is clear from the above description, according to the present invention, the rear side of the auxiliary pulling device provided in the middle of the pair of left and right main pulling devices is connected to the weeding pipe extending forward along the ground. By surrounding the support pipe that is pulled up with a shell culm guide plate fixed to an auxiliary pulling device, the shell culm pulled up in one pulling passage is separated from the shell culm pulled up in the other pulling passage. It is guided along the culm guide plate and then guided to the scraping part,
In addition, since the culms are completely traced from the support pipe, the culms, which are entangled with each other, are transported extremely smoothly without getting entangled with the support pipe, improving reaping performance. , the amount of loss caused by ear breakage and grain shedding during transportation is reduced.

[Brief explanation of the drawing]

1 to 3 show an embodiment of a culm guide device for a reaper according to the present invention, and FIG. 1 is a side view showing a part of a reaper, a threshing machine, and a running section of a combine harvester in which this is implemented. , FIG. 2 is a plan view showing a part of the reaper and a threshing machine, and FIG. 3 is a plan view of the reaper excluding the culm conveying device. 10...reaper, 16...sewing (Eve, 25)
．． 26...Main pulling device, 31...Support pipe, 32...Auxiliary pulling device, 33...Lifting case, 54...Culm guide plate. Patent applicant: Iseki Agricultural Machinery Co., Ltd. Agent Kazuyoshi Yamakawa (#11 people)

Claims (1)

[Claims] In a reaping machine equipped with a pair of left and right main pulling devices and an auxiliary pulling device in the middle thereof, the rear side of the auxiliary pulling devices and a dividing rod extending forward along the ground are connected by a support pipe. A culm guiding device for a reaper, characterized in that a culm guide surrounding the support pipe and extending rearward is supported by a lifting case of the auxiliary lifting device.