JPS6144576Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a multi-purpose threshing machine that is commonly used for ordinary type combine harvesters and self-stripping type combine harvesters.

Combine harvesters are roughly divided into regular types and self-shedding types depending on the method of raising and threshing the grain culm.Of these, the ordinary type uses a reel-type pulling device to pull up the crop, harvest it, and then remove all of the grain. This type of threshing is carried out by supplying the grain to a threshing cylinder, and while it has the advantage of having little harvest loss, it is less efficient than the self-threshing type, and has the disadvantage of not being able to use waste straw, so it is not used much in Japan. Not popular. On the other hand, the self-shedding type uses a lug-type pulling device to pull up the crop, harvest it, and then handles only the tip of the crop and feeds it to the barrel, where it is transported and threshed, achieving high efficiency with low power. It is widely used because it is possible to collect waste straw. However, for crops such as wheat and beans where it is difficult to comb the grain culms, it is preferable to use the regular type, which feeds the entire crop to the threshing cylinder, as it is more efficient with less harvest loss. When it comes to installing a dedicated combine harvester for this purpose, there are many problems in terms of equipment costs and annual operating rate.

Therefore, conventionally, a thresher, a self-removal type reaper and a normal type reaper that can be selectively attached to the threshing machine are provided, and when the former is attached, the grain culm is transported by a feed chain and threshed. A multi-purpose combine harvester is being developed that, when equipped with the latter, feeds the entire grain culm to a threshing machine for threshing.

However, the thresher in this type of multi-purpose combine harvester has separate grain supply ports to the handling chamber for use as a self-threading type and for use as a normal type. When used as a mold, there is a high risk that the threshed kernels will fly out of the machine from the supply port for the normal type. In addition to ensuring smooth supply, sufficient consideration must be given to preventing grain from scattering outside the machine.

The present invention was developed in view of the above points, and includes a grain culm guide whose one end is pivoted to the grain culm supply port side below the threading screw of the handling trunk that is pivoted in the handling chamber. The free end can be configured to selectively face the handling barrel side or the sorting shelf side depending on the purpose, to facilitate grain culm supply and to improve the grain machine when used as a self-removal type. To provide a multipurpose threshing machine designed to prevent the grain from scattering to the outside.

Hereinafter, its configuration and the like will be explained in detail with reference to embodiments shown in the drawings.

1 to 3 show a multipurpose thresher according to the present invention, FIG. 1 is a side view of a multipurpose combine equipped with the same, FIG. 2 is a plan view, and FIG. 3 is a sectional view of the multipurpose threshing machine. It is. In these figures, the running section 2 of the combine 1 is equipped with a pair of left and right running crawlers 3, and these running crawlers 3
On the traveling frame 4 that connects the
It is equipped with a multi-purpose threshing machine shown in and detailed later. The combine harvester 1 is equipped with an ordinary type reaper 6 that can be selectively attached to the threshing machine 5, and a self-removal type reaper 7, as shown in FIGS. 1 and 2.
The figure shows a normal type reaper 6 installed. This ordinary type reaper 6 has an upper end rotatably and removably supported on a pivot provided at the front end of the threshing machine 5, and a suspension arm pivotally supported at the front end of the threshing machine 5. The lower end portion is removably supported by 8. By expanding and contracting a hydraulic cylinder 9 whose one end is pivotally connected to the traveling frame 4 by operating from the operator's seat 10, the reaper 6 swings via the suspension arm 8, and the cutting blade at the lower end of the reaper 6 swings. The cutting height of the grain culm by the cutting tool 11 is configured to be adjusted. Above the cutting blade 11 of the reaper 6 and behind the weed splitting body 12, there are spiral blades 13 for collecting culms protruding from the circumferential surface of the cylinder, and an eccentric mechanism provided inside the cylinder. A plurality of grain culm raking crank fingers 14 move around while moving back and forth with respect to the circumferential surface of the grain culm.
An auger 15 is rotatably mounted on a shaft. Further, diagonally above the auger 15, a pulling reel 18 is provided with a pair of reels 16 connected by a crank, and a large number of tines 17 hanging in parallel in the axial direction at six locations on the outer periphery of the pair of reels 16.
is rotatably supported at the tip of an arm 20 that projects forward from the shaft support of the reel drive shaft 19. A sprocket 22 on a lower end shaft 21 located behind the auger 15 and drivingly connected to the reel drive shaft 19 by two sets of bevel gears, and a sprocket 22 on an upper end shaft 23 mounted on the upper end of the reaper 6. A chain conveyor 25 having a width slightly narrower than the width of the threshing machine 5 is stretched between the sprocket 24 and the sprocket 24.

On the other hand, the self-removal type reaper 7 is equipped with a left and right pair of upper hooks 26, 27 and a lower hook 28, which can share the pivot on the side of the thresher 5 to which the ordinary type reaper 6 is attached. The reaper 7 has a support rod 29 extending forward from these hooks 26, 27, 28.
It is supported by 30 branches. A weeding body 3 is provided at the tip of the weeding rod 30 and another weeding rod 32 connected to this by the reaping frame 31.
3 is attached, and behind it a plurality of lifting devices 35 equipped with a large number of lugs 34 that run together with the chain are erected. In addition, a clipper-shaped cutting blade 36 is supported at the center of the weeding rod 30 and is perpendicular thereto, and above the cutting blade 36 is a clipper-shaped cutting blade 36 that rotates with the rotation of the cutting case and moves back and forth against the case circumferential surface. A plurality of raking devices 37 having raking fingers and a plurality of raking belts 38 having lugs integrally formed with the belts are coaxially provided. In addition, a pair of left and right root chains 39 are stretched in a figure-eight shape between the sprocket coaxially connected to these and the sprocket at the upper end of the reaper 7, and further in front of the root chains 39 are ,
A pair of left and right tip chains 41 each having a large number of lugs 40 running together with the chains are stretched in a figure-eight shape. The reaping machine 7 is provided with a reaping drive shaft 42 at approximately the same level as the reel drive shaft 19 of the ordinary type reaping machine 6, and which can share a drive system with the reel drive shaft 19.

Therefore, the threshing machine 5 that can be used by selectively mounting both the reapers 6 and 7, which are configured as described above, will be described. That is, the frame 51 of the threshing machine 5 is integrally formed with a handling chamber 52 and a sorting chamber 53 below it, and a front plate 54 on the reaper 6 side has a front plate 54 facing forward at the upper end of the handling chamber 52. There are provided a grain culm supply port 55 for the reaper 7 that opens from the top, and a grain culm supply port 56 for the reaper 6 that opens diagonally forward at the lower end of the handling chamber 52. And inside the handling room 52,
A slush type handling cylinder 57 is mounted on a shaft. This handling cylinder 57 consists of a cylindrical threshing part 57a having a length of approximately 3/4 of the total length, and a taking-in part 57b integrally formed in front of the threshing part 57a through a tapered part, and the periphery of the threshing part 57a. A large number of handling teeth 58 are provided on the surface.
are arranged in a spiral. In addition, the intake section 57
On the circumferential surface of b, two spirally formed thread screws 59 are protruded with a phase difference of 180 degrees, and the intake portion 57b is connected to the upper and lower grain culm supply ports 55 and 56. Its tip is facing between the two. And, outside the lower grain culm supply port 56,
A beater 60 serving as a grain culm feeding device that is formed into a prismatic shape and rotates in the direction shown by arrow A in the figure is connected to the feed port 5.
The chain conveyor 25 on the reaper 6 side faces the vicinity of the beater 60 with its terminal end. Also, beater 60
A guide plate 61 is provided below and along the chain conveyor 25. Furthermore, a feed chain 63 is stretched on the side of the handling chamber 52 and runs from the stretched edge of the upper grain culm supply port 55 toward the lower end edge of the grain culm discharge port 62 on the opposite side.

On the other hand, a sorting shelf 64 is installed in the sorting chamber 53 and is shaped like an inverted triangular box and swings by the rotation of an eccentric cam (not shown). A grain pan 65 formed in a plate shape and a chaff sheave 66 having a large number of through holes
and a stroke rack 67 whose bottom plate is partitioned by a plurality of serrated fins are supported continuously. Further, below the shaft sheave 66 and the stroke rack 67, a sorting net 68 and a rear stroke rack 69 having substantially the same structure as the stroke rack 67 are supported, respectively. Further, below the sorting shelf 64, there is a winnow 70 having a plurality of blades on the circumferential surface and rotating in the direction shown by arrow B in the figure, and a first spiral conveyor 71 and a second spiral conveyor 72 formed in a spiral shape. are mounted on shafts with their axial directions parallel to each other. A second grain lifting machine 73 equipped with a plurality of blades is attached to the shaft end of the second spiral conveyor 72, and a second reducing cylinder 74 is connected between the discharge port and the handling chamber 52. connected by.

Between the threshing device and the sorting device configured in this way, a handling chamber receiving net 75 formed in an arc shape concentric with the handling barrel 57 is stretched in a manner substantially corresponding to the front half of the threshing section 57a. Further behind it, a receiving net 76 with a large mesh is continuously stretched.
Between the starting end of the handling chamber receiving net 75 and the lower edge of the grain culm supply port 56, that is, the slush screw 59
A grain guide plate 77 is provided below.
This grain culm guide plate 77 is formed into a plate shape that spans almost the entire width of the handling chamber 52, is rotatably supported by a hinge 78 provided on the grain culm supply port 56 side, and is held in a horizontal state. When it is fixed to the screen frame 79 at the starting end of the receiving screen 75 in the handling chamber 52 and the sorting chamber 53
The space between them is closed, and when it is tilted as shown by the chain line in the figure, its free end faces close to the grain pan 65 of the sorting shelf 64.

Further, behind the cockpit 10, an engine 80, a grain tank 81 that collects and stores paddy after threshing and sorting, and a discharge auger 82 that discharges the stored paddy to a truck bed or the like are arranged. has been done. Further, a dust exhaust port 83 is provided at the rear end of the handling chamber 52.
is opened.

The harvesting operation by the multi-purpose combine harvester 1 configured as above will be explained. First, when harvesting crops such as wheat and beans whose grain culms are difficult to comb and which are easy to thresh, a regular reaper 6 is installed in the threshing machine 5, as shown in Figs. 1 and 2. At the same time, the grain guide plate 77 is fixed to the net frame 9 as shown by solid lines in FIG. Then, when the machine is moved forward, the grain culms in the field are swept away by the cutting body at the front end of the reaper 6, and the fallen grain culms are removed by the rotating reel 18.
This is caused by the rotation of the tines 17. The raised grain culms are harvested at their bases by the cutting blade 11, and then collected to one side by the spiral blades 13 of the auger 15.
It is caught between the chain conveyor 25 and the guide plate 61 by the crank finger 14 and lifted up and conveyed. Then, when reaching the end of the conveyance, the beater 6
The entire grain culm is scraped into the handling chamber 52 from the lower grain culm supply port 56 by the 0 protrusion. The raked grain stalks are taken in in the axial direction by the slush screw 59 as the handling drum 57 rotates, and are conveyed on the grain guide plate 77 to the threshing section 57a of the handling drum 57.
reach. The grains threshed by the handling teeth 58 pass through the mesh of the receiving net 75 to the grain pan 6.
5 and chaff sieve 66, and while being conveyed, they fall through the holes onto the sorting net 68, and are sorted by the swinging of the sorting shelf 64 and the sorting air from the winnower 70. Then, the sorted grains fall onto the No. 1 spiral conveyor 71 and are transferred, are discharged into a grain tank 81 and stored, and then are discharged outside the machine by a discharge auger 82 as required. On the other hand, the threshed grain culms and the processed materials such as straw waste, ears of ears, and snails generated during threshing are transferred into the handling chamber 52 and are passed through the large receiving net 76 and the dust outlet behind it to the chaff sheave 66. and falls onto the stroke rack 67. The grains are transferred by the swinging of the sorting shelf 64 and fall onto the rear stroller rack 69, where they are sorted by air from the winnowing machine 70 and collected, and straw waste is removed from the machine through the dust outlet 83. is discharged to. The dust remaining as a result of the sorting in this way becomes the so-called second material, falls onto the second spiral conveyor 72, and is then transported.
The grains are returned to the handling room 52 by the second grain lifting machine 73, and the sorting is repeated. In the threshing and sorting work performed in this manner, the provision of the grain culm guide plate 77 allows the grain culm supplied from the grain culm supply port 56 to be extremely smoothly supplied to the threshing section 57a and threshed. .

Next, when harvesting rice whose grain culms are easy to comb and which are relatively difficult to thresh, the reaper is replaced with a self-removing reaper 7. In this case, hooks 26, 27, 2
8 is engaged with the pivot portion of the threshing machine 5, and the belt can be replaced easily by replacing it with the reaping drive shaft 42. Further, the grain guide plate 77 is removed from the mesh frame 79 and tilted as shown by the chain line in FIG. When the machine is moved forward, the grain culms in the field are raked by the weed cutting body 33, and then the tips are pulled up and conveyed upward by the device 35 to stand up, and at the same time the root part is pulled up by the cutting blade 36. be reaped. The harvested grain culm is removed by a scraping device 37.
It is pulled into the conveyance path and conveyed by the root chain 39 and the tip chain 41. Then, the transported grain culm is threshed while being transported with the tip portion being supplied to the handling chamber 52 from the upper grain culm supply port 55 and the root portion being taken over by the feed chain 63. The subsequent sorting is almost the same as the sorting when the ordinary type reaping machine 6 is attached, so the explanation thereof will be omitted. However, in this case, the grain culms after threshing become so-called waste straw and are discharged from the handling chamber 52, and are tied or cut by an attached waste straw processing device and discharged to the field.
In the threshing sorting work performed in this way, the grain culm is smoothly supplied to the handling chamber 52, and the grain culm guide plate 77 is tilted to extend the free end to the grain pan 65 of the sorting shelf 64. Since the grains are placed in close contact with each other, the grains that are scattered toward the entrance side of the handling chamber 52 by the pressure generated by the rotation of the handling cylinder 57 slide on the grain guide plate 77 and are collected on the sorting shelf 64. , the grains will not be scattered outside the machine from the grain culm supply port 56.

As is clear from the above explanation, in a multi-purpose threshing machine that is commonly used for ordinary combine harvesters and self-removal type combine harvesters, one end of the threshing screw is installed below the threshing screw of the handling trunk, which is mounted on a shaft in the handling chamber. By providing a grain culm guide pivotally connected to the culm supply port side and configuring the free end to selectively face the handling trunk side and the sorting shelf side, it is possible to work with a self-removal type reaper attached. The grain culm supplied to the handling chamber is guided by the grain culm guide and led to the threshing section, not only when carrying out the work, but also when carrying out the work with a regular type reaper attached, so that the supply is carried out smoothly. Threshing efficiency is improved. In addition, when carrying out work with a self-removal type reaper installed, the threshed grains heading towards the grain culm supply port are blocked by the grain culm guide plate and collected into the sorting device, preventing them from scattering outside the machine. Therefore, grain loss can be reduced.

[Brief explanation of the drawing]

1 to 3 show a multipurpose thresher according to the present invention, FIG. 1 is a side view of a multipurpose combine equipped with the same, FIG. 2 is a plan view, and FIG. 3 is a sectional view of the multipurpose threshing machine. It is. 5... Threshing machine, 52... Handling room, 55, 56...
...Grain culm supply port, 57...Handling barrel, 59...Threshold screw, 60...Vita, 64...Sorting shelf, 77...Grain culm guide plate.

Claims (1)

[Scope of utility model registration request] A grain culm supply port 55 for a self-removal type reaper is opened at the upper end of the front part, and a grain culm supply port 5 for a normal type reaper is opened below it.
6 is opened, and both grain culm supply ports 5 are provided.
A handling cylinder 57 is mounted on a shaft within the handling chamber 52 with the head Threshold Screw 59 facing between 5 and 56.
a grain culm supply device 60 rotatably mounted on a shaft outside the lower grain culm supply port 56; 56 side, and the free end is connected to the handling cylinder 57.
A multipurpose threshing machine characterized by comprising a grain culm guide 77 rotatably provided so as to selectively face the side and the sorting shelf 64 side below the grain culm guide.