JPH08289657A - Treating apparatus in thresher - Google Patents

Abstract

PURPOSE: To promote treatment of breaking ears and rachis-branches without damaging grains. CONSTITUTION: This thresher is equipped with the first threshing drum 12 for carrying out threshing treatment of grain culms and the second threshing drum 22 having many treating teeth provided in the outer peripheral face and retreating discharged dust after treatment due to the first threshing drum 12 and grains which are not leaked down from a receiving net 14. The treating teeth 23 of the second threshing drum 22 are arranged in a state inclined by a prescribed angle (α) to the rotation direction so that grains flow in a prescribed direction and an auxiliary treating tooth 29 is provided in a state inclined in the direction capable of disturbing the flow of grains in prescribed direction on the outer peripheral face of the second threshing drum 22. The caught straw waste, etc., are escaped upward or excess pressure is not applied to grains by the auxiliary treating tooth 29 to promote treatment of breaking ears and rachis-branches.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing device in a threshing machine, and more particularly to a second handling cylinder for reprocessing dust discharged after treatment by the first handling cylinder and grains not leaked from the net. Concerning the structure of.

[0002]

2. Description of the Related Art An automatic threshing machine is provided with a rotatably supported handling drum, and a large number of treated teeth are formed on the outer peripheral surface of the handling barrel to rotate a cut tip. Threshing is performed by contacting with. Further, a receiving net is arranged so as to cover the outer peripheral surface of the handling drum at a predetermined distance from the handling barrel, so that only the grain leaks through the receiving net, and the grains and straw debris are removed. It is configured to separate and leak.

In order to reprocess the dust discharged after the treatment by the handling cylinder and the grains that have not leaked from the net,
In some cases, another handling cylinder is provided separately from the handling barrel.

In such an automatic threshing device, conventionally,
In order to promote the treatment of spike cutting and branching, for example, it is proposed that the treated tooth be arranged facing a straw cutting sickle, and that a guide group for guiding straw waste etc. be provided to accelerate the treatment. ing.

[0005]

However, as described above, the conventional one provided with the straw cutting sickle and the guide group has a complicated structure and a large amount of unprocessed dust remains, and so on. It was not possible to promote proper processing. On the other hand, when a straight plate was attached to try to promote the treatment of cuttings and branch shoots, there was a risk that the grain would be damaged due to its large sawing action.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a thresher capable of promoting the processing of panicle cuttings and branch shoots without damaging the grain. It is to provide a processing device.

[0007]

In order to achieve this object, the present invention provides a first handling cylinder (12) for threshing a grain culm.
And a reprocessing of the dust which has a large number of processing teeth (13) provided on the outer peripheral surface and which has not leaked from the dust and the net (14) after being processed by the first handling cylinder (12). In the processing device in the threshing machine (10) including the second handling cylinder (22), the processing teeth (23) of the second handling cylinder (22) are
A direction in which the grain is inclined at a predetermined angle (α) with respect to the rotation direction (direction A) so that the grain flows in a predetermined direction, and a direction in which the flow of the grain in the predetermined direction is impeded on the second handling cylinder (22). The auxiliary treatment teeth (29) are provided so as to be inclined with respect to each other.

Preferably, the auxiliary treatment tooth (29) is
It has a flank (29a) inclining toward the rear in front thereof, and an uneven portion (29b) is formed on the upper surface thereof.

[0009]

With the above arrangement, according to the present invention, the first
Dusts and nets (14) after treatment by the handling cylinder (12)
The second handling cylinder (22) that reprocesses the grains that did not leak from the
The treatment teeth (23) of the second handling cylinder (22) are arranged at a predetermined angle (α) with respect to the rotation direction so that the grains flow in a predetermined direction, and the second handling cylinder is provided with (2
In 2), the auxiliary treatment teeth (29) are provided so as to be inclined in the direction in which the flow of the grain in the predetermined direction is obstructed, so that it is possible to allow the straw dust and the like caught on the auxiliary treatment teeth (29) to escape upward. Further, it becomes possible to thresh without applying excessive pressure to the grain, and the treatment of panicle cutting and branch shoots is promoted while preventing damage to the grain.

The above-mentioned reference numerals in parentheses are shown for reference to the drawings and do not limit the structure of the present invention.

[0011]

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

FIG. 1 is a sectional side view of a thresher equipped with the processing apparatus of the present invention. In FIG. 1, the thresher 10 has a first handling chamber 15 whose upper part is covered with a cylinder cover 11. Then, the first handling cylinder 12 is disposed in the first handling chamber 15. Treatment teeth 13 are provided on the outer peripheral surface of the first handling cylinder 12, and a receiving net 14 is disposed below the first handling cylinder 12 at a predetermined interval. In addition, the first handling room 1
5, the second handling chamber 16 is formed in parallel with the first handling chamber 15 on the tip side of the grain culm to be supplied, and the second handling barrel 22 is provided in the second handling chamber 16. Is provided.

The second handling cylinder 22 is provided with a spiral spiral 28 on the front part of its outer peripheral surface and processing teeth 23 on its rear part, and a predetermined interval is provided below the second handling cylinder 22. A receiving net 24 is arranged at a distance. The second handling cylinder 22 includes the dust discharged after the treatment by the first handling cylinder 12 and the net 14.
It serves to re-process the grains that did not leak from. The handling barrel shaft 22a of the second handling barrel 22 is located below the handling barrel shaft 12a of the first handling barrel 12.

At the front side of the first handling chamber 15, a grain culm supply port 18 is opened, and at the rear end of the first handling chamber 15, a dust delivery port 19 is opened. 19 communicates with the second handling chamber 16. A wind selecting chamber 17 is formed below the receiving net 14, and an inlet plate 20 extends forward along the lower side of the supply port 18.

Furthermore, below the first handling chamber 15,
The feed chain 21 is obliquely arranged at an upward slope, and the root of the grain culm is sandwiched between the feed chain 21 and the feed chain 21. The cylinder cover 11 extends forward, and a front cover 25 is attached to the front end of the cylinder cover 11.

In this embodiment, as the processing device of the threshing machine 10, the first handling cylinder 12, the receiving net 14, and the second
It includes the handling cylinder 22, the receiving net 24, and the like.

According to the present invention, the processing teeth 23 of the second handling cylinder 22 are arranged at a predetermined angle with respect to the rotation direction so that the grains flow in a predetermined direction, and the second handling cylinder 22 is also provided.
In addition, the auxiliary processing teeth are provided so as to be inclined in a direction that prevents the grain flow in the predetermined direction.

Although not shown, the power transmission to the threshing section is such that the threshing output shaft of the counter case enters the threshing input shaft by the V-belt, and the threshing input shaft of the first handling cylinder 12 passes from the input pulley through the bevel gear. 12a is transmitted.

As shown in FIG. 2, the power for driving the first handling cylinder 12 is driven by the universal shaft 27 from the pulley 26 at the shaft end of the first handling cylinder 12 to the handling barrel shaft 22 of the second handling barrel 22.
In addition, the first handling chamber 15 and the second handling chamber 16 have a structure in which they are transmitted to a. Have been contacted. Then, the dust discharged after being processed by the first handling cylinder 12 and the remaining grains are discharged from the dust delivery port 19 to the second handling chamber 1.
Sent to 6.

In the above, as shown in FIGS.
The processing teeth 23 of the second handling cylinder 22 have a predetermined angle α (approximately 6 in the embodiment) with respect to the rotation direction of the second handling cylinder 22 (direction of arrow A) so that the grains flow in a predetermined direction (direction of arrow B). °) Tilt is arranged. By doing so, the processing teeth 23 of the next stage adjacent to the processing teeth 23 while reprocessing the grains are processed.
I send it to and perform a more efficient threshing process.

Further, on the outer peripheral surface of the second handling cylinder 22, an appropriate number of auxiliary processing teeth 29 can be detachably attached in the middle of the plurality of processing teeth 23 arranged along the axial direction of the second handling cylinder 22. It is provided in. The auxiliary processing teeth 29 are arranged in a direction that hinders the flow of grains in the processing teeth 23 (that is,
A predetermined angle β (in the embodiment, about 6) with respect to the rotation direction of the second handling cylinder 22 in a direction inclined to the side opposite to the processing teeth 23.
It is installed so that it can be attached and detached at an angle of only °). As shown in FIG. 3, the auxiliary processing tooth 29 is made of a thick plate whose front view is mountain-shaped, has a flank 29a inclining rearward in front thereof, and has an uneven portion 29 on its upper surface.
b is formed.

The operation of this embodiment by means of the auxiliary processing teeth 29 will be briefly described. The flank 29a serves to release upward the scraps and the like caught on the auxiliary processing teeth 29 due to the inclined surface thereof. The convex portion of the concave and convex portion 29b is provided for threshing with a fixed tooth (not shown), and the concave portion is provided for releasing an excessive pressure applied to the grain. And while preventing the risk of damaged rice due to surface pressure twisting,
It alleviates the application of excessive pressure and promotes the treatment of panicle cutting and branch shoots. Since the auxiliary treated teeth 29 are detachable, it is possible to remove the auxiliary treated teeth 29 for thin-skinned and easily threshed pieces.

Next, FIG. 6 and FIG. 7 show a high-speed rotating section 30.
The handle barrel shaft 12 of the first handle barrel 12 ′ having the low-speed rotating portion 31 and
An example is shown in which a'is connected to the drive shaft 33 via the gear of the gear case 32, whereby the rotation speed of the handling barrel shaft 12a 'can be changed. Then, the drive shaft 33
Are arranged above the handling barrel shaft 12a 'of the first handling barrel 12'.

In this embodiment, the rotation speed of the first handling cylinder 12 'can be changed according to the crop condition, and the drive shaft 33 is used as the handling cylinder shaft of the first handling cylinder 12'. 1
Since it is arranged above 2a ′, it is possible to perform good processing without narrowing the grain culm supply port 18 and to prevent the flow of grain culms, and reduce the load on the handling room. You can

[0025]

As described above, according to the present invention, the auxiliary member having the outer peripheral surface of the second handling cylinder, which has the flank surface which is inclined forward and rearward and has the uneven portion formed on the upper surface. By providing treated teeth, the flanks prevent catching of straw debris, etc., while mitigating the resistance shock to grain pressure to prevent the generation of damaged rice and promote the treatment of panicle cutting and branch shoots. Can be planned.

[Brief description of drawings]

FIG. 1 is a sectional side view of a thresher equipped with a processing device according to the present invention.

FIG. 2 is a sectional plan view of a processing device in a threshing machine.

FIG. 3 is a diagram showing a configuration of a second handling cylinder.

FIG. 4 is a view showing a state in which a second handling cylinder is expanded.

FIG. 5 is a side view of a second handling cylinder.

FIG. 6 is a sectional front view of a first handling cylinder showing another embodiment.

7 is a sectional side view of the first handling cylinder of FIG.

[Explanation of symbols]

 10 Automatic Threshing Device 11 Cylinder Cover 12, 12 'First Handling Cylinder 12a Handling Cylinder Shaft 13, 23 Treating Teeth 14, 24 Receiving Net 15 First Handling Chamber 16 Second Handling Chamber 18 Supply Port 19 Dust Feed Port 22 Second Handling Body 28 Spoiler 29 Auxiliary treatment teeth 29a Flank surface 29b Concavo-convex portion

Claims (2)

[Claims] 1. A first handling cylinder for threshing a grain culm, and a large number of processing teeth provided on an outer peripheral surface thereof, and does not leak from dusts and nets treated by the first handling cylinder. In a processing device in a thresher equipped with a second handling cylinder for reprocessing the grain, the processing teeth of the second handling barrel are inclined at a predetermined angle with respect to the rotation direction so that the grain flows in the predetermined direction. The processing device in the thresher, wherein the second handling cylinder is provided with auxiliary processing teeth that are inclined in a direction that obstructs the flow of the grain in the predetermined direction. 2. The processing device for a threshing machine according to claim 1, wherein the auxiliary processing tooth has a flank surface which is inclined forward and rearward, and an uneven portion is formed on an upper surface thereof. .