JPH06929Y2 - Combine harvester - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Use The present invention relates to a threshing machine for combine harvesters for cutting and threshing husks.

(B) Conventional technology Conventionally, a combine threshing machine in which a net support plate is provided around the supply port side of the handling cylinder and the side edges of the net are supported by the net support plate is already known.

(C) Problems to be solved by the device The known combine threshing machine described above, when cutting and threshing wet culms, leaves water drops adhering to the husks contained in the threshing, and the receiving net is not visible. Along with clogging, lumps were formed at the entrance of the handling chamber, which overloaded the handling barrel and further reduced threshing performance.

(D) Means for Solving the Problems In the present invention, an arc-shaped plate-shaped handle tooth is attached to the supply port side of the handle cylinder, and a large number of small holes are formed in a portion of the handle chamber facing the plate-shaped handle tooth. By providing a dehydrating section consisting of a plate or a net having a water absorbing material on the outer surface of the dehydrating section, the arcuate plate-shaped handle tooth is rotated by its rotation immediately after inserting the shell culm to which water droplets adhere to the handle chamber. The above-mentioned problems were solved by repelling the water droplets, the water droplets that flowed down the inner surface of the handling chamber, leaking from the dehydration section, and absorbing the leaked water by the water absorbing material.

(E) Action When wet culm is cut off by the reaping device and fed to the threshing machine by the culm conveying device, the ears inserted into the handling chamber from the supply port have a bow shape attached to the starting end of the handling barrel. As it is squeezed by the rotation of the plate-shaped handle teeth, the attached water droplets are repelled and flow down, and the water that flows down flows out of the treatment room from the dehydration section and is immediately absorbed by the water absorbing material. The water content of the threshing processed by the threshing teeth after passing the chaffing teeth decreases.

(F) Embodiment An embodiment of the present invention will be described with reference to the drawings.
In the figure, reference numeral 1 is a thresher mounted on the combine stand, and the handling barrel 2 is mounted in the handling room 3 and the receiving net 5 is used in the handling room 3.
A swinging sorting body 8 that swings back and forth in a sorting wind passage that is stretched from the lower side of the fan to the opposite side of the handle, and that is formed by a blower wind turbine 6 and a dust removal wind turbine 7 composed of a cross-flow fan that is provided below it. And the rear end of the carrier 11 provided below the dust inlet 10 provided at the rear of the handling chamber 3 is provided at the rear of the handling chamber 3 and has a horizontal axis type processing cylinder 12 installed therein. It faces the entrance of the processing chamber 13 formed.

Further, the gutter is provided under the Glen sheep 14 of the swing selecting body 8, and the second gutter 17 whose transfer end communicates with the second thrower 16 is provided under the straw rack 15 behind the glen sheep 14. The section is provided with a cross-flow fan 19 that blows through the slot rack 15 and blows out to the dust outlet 18.

A plurality of arcuate plate-shaped handle teeth 20 are arranged at intervals in the circumferential direction at a portion extending from the frusto-conical portion 2a at the starting end portion of the handle cylinder 2 to a part of the cylindrical portion. (4 in the example) are fixed, and a large number of small holes 2 are formed in a plate formed in a conical surface at the portion facing the lower part of the rotation locus of these plate-shaped handle teeth 20.
A dehydration section 22 (or a net) is provided by perforating the water-removing section 22, and a water-absorbing material 23 made of sponge or the like is adhered to the lower surface of the dehydrating section 22. Front wall 25
A squeezing roller 27, which is pivotally supported by the fulcrum shaft 24 and has an arcuate shape as shown in FIG. The formed arm 28 is connected to the front end of the swing selecting body 8 by the link 3
They are linked by 0.

In the threshing machine 1 described above, the husks mowed by the reaping device and subsequently sent by the husk transfer device are transferred by pinching their roots to the feed chain and the start end of the picking rails, and then pinched and transferred, and the ear side It is inserted into the handling chamber 3 through the supply port 31 and threshing is performed.

At that time, the shell culm inserted from the supply port 31 is carded by the plate-shaped handle teeth 20 ...
When the shell culms are wet, the attached water droplets are squeezed and kicked off by the plurality of plate-shaped handle teeth 20. This flows down along the inner peripheral wall and flows out from the small holes 21 of the dehydration section 22. The water absorbing material 23 immediately absorbs this.

On the other hand, the squeezing roller 27 compresses the water-absorbing material 23 and swings the swing arm 26 and the arm 28 by the swing sorting body 8.
Since it reciprocates diagonally up and down via the link 30,
The water absorbed by the water absorbing material 23 is squeezed out and flows down. The water that flows down is appropriately drained out of the machine using a gutter or the like.

Therefore, when shifting to the cylindrical portion of the handling cylinder 2 and threshing treatment is performed by the handling teeth 2b ..., Sucking amount is remarkably reduced, clogging of the receiving net 5 can be prevented, and at the same time in the handling chamber 3. It is possible to reduce the generation of lumps. Also, the sorting performance can be improved.

4 to 6 show that the transfer body 11a in the above-mentioned embodiment is constituted by a crimp net stretched by a large number of protrusions 32 .. Since the same lower part of the starting end of the handling chamber 3 is equipped with a dehydrating device similar to that of the above-described embodiment, it is possible to remove water droplets from the wet culms and then perform threshing treatment. Since the mesh of the net 5 is larger than that of the conventional one, the threshing quickly leaks and the load on the handling cylinder 2 is reduced, which enables highly efficient threshing, and the leaked shell grains and twigs. The shavings and straw debris are sieve-selected while being transferred by the transfer body 11a and leaked from the mesh, which is further sieve-selected by the grain sieve 14, and is discharged from the dust delivery port 10 at the rear part of the transfer body 11a. Dust merged, transferred and sorted, and remained on the net The is processed by the processing cylinder 12 is incorporated fed to the processing chamber 13.

The shell grains and small straw scraps that have been processed by the processing cylinder 12 into single particles fall into the Glen sieve 14 or the slot rack 15 and undergo sieve screening and wind screening together with the objects to be sorted that have migrated from the Glen sieve 14.

Further, despite the large amount of degrained grains leaking from the receiving net 5, the sieve selection and the air selection can be performed well.

The threshing machine shown in FIGS. 7 to 9 is provided with other countermeasures against the wetting material, and a plurality of pieces are provided on the upper plate 34a and the lower plate 34b of the net frame 34 on the side opposite to the port of the net and the net 5, respectively. Regulation pin 3
., And these regulating pins 35, ... Are slidably fitted into a plurality of holes formed in the upper frame 36a and the intermediate frame 36b, and the side plates 34c, 3 of the receiving frame 34 are slidably fitted.
Racks 37, 37 are engraved in the middle part of the outer periphery of 4c, and support rollers 38, 38 are brought into contact with the upper and lower portions of the racks 37, 37 to counter the process rolling of the handling cylinder 2 and to reciprocate the receiving net 5 in the circumferential direction. One of the racks 37 is supported while allowing movement.
A cam 40 having one or two projections is joined to a pinion 39 that meshes with the driven pulley 41 mounted on the shaft of the cam 40 and driven by a drive pulley 42 mounted on the handle barrel shaft via a belt 43. I am doing it.

Further, the return spring 45 is interposed between the upper portion of the receiving frame 34 and the upper frame 36a to urge it upward.

Then, when the cam 40 is driven to rotate with the rotation of the handling cylinder 2, the protrusion thereof forcibly rotates the pinion 39 clockwise by one pitch in FIG. 7, whereby the pinion 39 receives the mesh. The frame 34 is moved downward.

Next, when the projection of the cam 40 is disengaged from the teeth of the pinion 39 and the circumferential surface comes into contact, the return spring 45 causes the net frame 3 to move.
4 is pulled up, and the pinion 39 rotates in the reverse direction.

During the threshing process, the receiving net 5 repeats the vibration in the circumferential direction as described above, so that the threshing process will not be clogged even if the husk to be threshed is wet, and the threshing will always leak normally and the handling cylinder 2 can be prevented from being overloaded.

(G) Effect of the Invention In the present invention, as described above, the arcuate plate-shaped handle teeth 20 are attached to the supply port 31 side of the handle barrel 2, and a large number of them are provided in the part of the handle chamber 3 facing the plate-like handle teeth 20. Since the dehydrating section 22 made of a plate or a net having the small holes 21 is provided and the water absorbing material 23 is attached to the outer surface of the dehydrating section 22, even if the culm to be mowed and threshed is wet, the attached water drops are Immediately after being inserted into the supply port 31 of No. 1, it is squeezed and blown away by the bow-shaped plate-shaped handle teeth 20.
The water that has flowed down leaks from the dewatering unit 22 and is absorbed by the water absorbing material 23, so that no lumps are generated on the front side of the handling chamber 3 and the receiving net 5 is not clogged, and the handling barrel 2 is prevented. It is possible to prevent overload.

Since the water content during grain removal is reduced, the sorting performance can be improved.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention, in which FIG. 1 is a longitudinal sectional view of a main part, FIG. 2 is a transverse sectional view of the same as above, and FIG. 3 is a longitudinal sectional view of a thresher, 4 to 6 show another embodiment, FIG. 4 is a longitudinal sectional view of the thresher, and FIG. 5 is A of FIG.
-A sectional view, FIG. 6 is the same as the above BB sectional view, FIGS. 7 to 9 are those with other measures against the wetting material, FIG. 7 is a transverse sectional view of the main part, and FIG. The plan view and FIG. 9 are exploded perspective views of the same. 2 ・ ・ Handling cylinder, 3 ・ ・ Handling room, 8 ・ ・ Rotating sorter, 20 ・ ・
Plate-shaped handle teeth, 22 ... Dewatering part, 23 ... Water absorbing material, 27 ...
Squeeze roller.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigeru Nakajima 667 Izaiya-cho, Higashi-Izumo-cho, Yatsuka-gun, Shimane Prefecture 1 Mitsubishi Agricultural Machinery Co., Ltd. Address 1 Within Mitsubishi Agricultural Machinery Co., Ltd. (72) Inventor Noboru Ito Address: 667 Izuyacho, Higashi Izumo-cho, Yatsuka-gun, Shimane Prefecture 1 Inside Mitsubishi Agricultural Machinery Co., Ltd.

Claims (2)

[Scope of utility model registration request] 1. An arc-shaped plate-shaped handle tooth 2 on the side of the supply port 31 of the handle body 2.
0 is attached, and the dehydration section 22 is made of a plate or a net having a large number of small holes 21 at a portion of the handling chamber 3 facing the plate-shaped handling teeth 20.
And a water-absorbing material 23 is attached to the outer surface of the dehydrating section 22, which is a threshing machine for combine harvesters. 2. The dehydrating section 2 is formed in a fan shape along the outer circumference of the handling cylinder 2 when viewed from the axial direction of the handling cylinder 2.
The combine thresher according to claim 1, wherein an arc-shaped squeezing roller 27 is movably pressed against the outer surface of the utility model.