JP2023082543A - Thresher - Google Patents

Abstract

To provide a thresher capable of executing excellent threshing processing solving the problem that threshing processing is executed by the rotation of a threshing cylinder with a plurality of threshing teeth in a threshing chamber of the thresher in which the threshing cylinder with a plurality of threshing teeth is laid in a rotatably driven manner in the threshing chamber, but there is a case where satisfactory threshing processing cannot be executed because of co-rotation of objects to be processed and threshing teeth of the threshing cylinder.SOLUTION: A thresher in which a threshing cylinder 53 with a plurality of threshing teeth 52 is laid with a threshing cylinder shaft 57 in a rotatably driven manner in a threshing chamber 51 is provided with resistive elements 60a and 60b in the vicinity of a rotation locus R of the threshing teeth 52 in the threshing chamber 51, which apply movement resistance to objects to be processed.SELECTED DRAWING: Figure 4

Description

The present invention relates to a threshing device.

Conventionally, a threshing cylinder having a plurality of threshing teeth is mounted on a shaft in a threshing chamber so as to be freely driven and rotatable (see Patent Document 1).

JP 2007-195457 A

A threshing cylinder provided with a plurality of threshing teeth rotates in a threshing chamber to perform threshing, but sometimes the material to be processed rotates together with the threshing teeth of the threshing cylinder, making it impossible to perform a good threshing process.

The present invention has been made in view of the above, and an object thereof is to provide a threshing apparatus capable of performing a good threshing process.

The first aspect of the invention is a threshing apparatus in which a threshing cylinder 53 provided with a plurality of tines 52 in a threshing chamber 51 is rotatably driven by a threshing cylinder shaft 57. This is a threshing device in which resistors 60a and 60b are provided in the vicinity of the rotation locus R to give movement resistance to the material to be processed.

According to the first aspect of the invention, since the resistors 60a and 60b are provided in the vicinity of the rotation locus R of the serrations 52 in the handling chamber 51, the resistors 60a and 60b give movement resistance to the workpiece. It acts so that the threshing process can be performed quickly by giving movement resistance to break the mass of the material to be processed, and the threshing process can be performed satisfactorily.

The invention according to claim 2 is the threshing apparatus according to claim 1, wherein the resistors 60a and 60b are elastic bodies of rubber plates.

According to the invention of claim 2, in addition to the effects of the invention of claim 1, since the resistors 60a and 60b are elastic bodies such as rubber plates, a large amount of material to be processed is thrown into the handling chamber 51. When the amount of threshing is large, the resistors 60a and 60b are pushed and deformed by the material to be processed to widen the distance from the rotation locus R of the threshing teeth 52. Appropriate movement resistance can be given to the processed material regardless of the amount of processing, and threshing can be performed satisfactorily.

The invention according to claim 3 is the threshing apparatus according to claim 1 or claim 2, wherein the tips of the resistors 60a and 60b are plate bodies located in the vicinity of the rotational trajectory R of the threshing teeth 52 along the threshing drum 53. .

The invention according to claim 4 is the threshing apparatus according to any one of claims 1 to 3, wherein resistors 60a and 60b are provided at the portions where the threshing drum 53 moves from bottom to top.

The invention according to claim 5 is the threshing apparatus according to any one of claims 1 to 4, wherein the resistors 60a and 60b are provided so as to be adjustable with respect to the rotational locus R of the serration 52.

The invention according to claim 6 is the threshing apparatus according to any one of claims 1 to 5, wherein inclined portions 60a' and 60b' are provided at the front end portions of the resistors 60a and 60b in the moving direction of the processed material. is.

It is a side view of a combine which shows an embodiment in the present invention. It is a sectional side view of a threshing device showing an embodiment in the present invention. It is a plane sectional view of a threshing device showing an embodiment in the present invention. It is a front cross-sectional view of a threshing device showing an embodiment of the present invention. It is a front cross-sectional view of a threshing device showing another embodiment of the present invention. It is a plane sectional view of the threshing apparatus which shows other embodiment in this invention. It is a front cross-sectional view of a threshing device showing another embodiment of the present invention. It is a plane sectional view of the threshing apparatus which shows other embodiment in this invention. FIG. 10 is a plan view of a main part showing another embodiment of the present invention;

An example in which the present invention is applied to a general-purpose combine harvester of all culm-throwing-in type will be described with reference to the drawings.

First, the combine showing the first embodiment will be specifically described with reference to FIGS. 1 to 4. FIG.

<Overall configuration of combine harvester>
A general-purpose combine harvester harvests rice, wheat, and the like, and includes a body frame 1, a pair of left and right crawler-type traveling devices 2 that support the body, and a front portion of the body frame 1 that is supported so as to be able to swing vertically. an elevator 3, a reaping unit 4 connected to the front end of the elevator 3, a threshing device 5 arranged on the left side of the machine frame 1, a grain tank arranged on the right lateral side of the threshing device 5, and an elevator 3 and an operation section 6 arranged on the right side of the threshing device 5 and on the front side of the grain tank. The traveling device 2 , the elevator 3 , the reaping unit 4 , the threshing device 5 , the grain transfer device of the grain tank, etc. are driven by a motor (engine) mounted on the body frame 1 .

The operation unit 6 includes an operator seat 6a, a motor start switch 6b, an HST lever 6c for operating a hydrostatic continuously variable transmission that switches the drive to the traveling device 2 between forward and backward and continuously changes speed, and the right and left traveling device 2. A steering lever 6d for steering the machine body by turning left/right drive on and off and manually operating the reaping unit 4 up and down, a reaping and threshing clutch lever 6e, a control device 6f for controlling each constituent member, a monitor 6g, an alarm buzzer 6h, etc. is provided.

<Reaping part 4>
The reaping unit 4 includes a pair of left and right weeding rods 7, a platform 8, a rotary reel 9 for raking in the harvested material, and a clipper-type trimmer disposed across the left and right weeding rods 7 at the front end of the platform 8. It comprises a cutting device 10 and an auger 11 which is arranged on a platform 8 and rotates about an axis extending in the horizontal direction.

A hydraulic cylinder is arranged between the body frame 1 and the elevator 3, and the elevator 3 is provided so as to be swingable up and down with respect to the threshing device 5 around the axis in the horizontal direction. When the elevator 3 is operated to swing up and down, the reaping part 4 is in a working state in which the platform 8 is lowered close to the ground, and a non-working state in which the platform 8 is highly raised from the ground.

The rotatable reel 9 is rotatably supported by a reel arm 12 which is supported by the reel arm 12 so as to be vertically swingable about the swing axis P with respect to the reaping unit 4. It has a plurality of tines 14 supported to face the planted grain culm.

When the combine is moved forward while the reaping part 4 is lowered, the planted grain culms are divided into the reaping target and the non-reaping target by the weed dividing rod 7, and the reaping target is separated by the rotation of the rotary reel 9. Planted grain culms are cut by a clipper-type cutting device 10 while being rake into a platform 8. - 特許庁The harvested culms raked into the platform 8 are laterally fed to the front of the elevator 3 by the auger 11 and further raked into the elevator 3 . The harvested grain culms are conveyed rearward by the elevator 3, and the entire harvested grain culms from the root to the tip are thrown into the threshing device 5.例文帳に追加

<Ogre>
The auger 11 has right and left spiral spirals on the right and left sides of the front part of the elevator 3, laterally feeds the harvested culms to the front of the elevator 3, and rakes them into the front part of the elevator 3 with raking rods.

<Elevator>
The elevator 3 includes an elevator case body 30 having a rectangular cylindrical front end opening and a rear end opening, and a conveyor inside the elevator case body 30 for conveying harvested culms to the threshing device 5 at the rear.

<Threshing device>
In the threshing device 5, a threshing cylinder 53 having threshing teeth 52 is axially mounted in a cylindrical threshing chamber 51 formed by a threshing cylinder cover 50 in the upper portion thereof.

The handling drum 53 is provided with a front feeding section 54, which is a front member in the direction of material transfer, and is formed by welding a spiral 54b for conveying harvested grain culms rearward to a conical tapered section 54a having a large diameter on the rear side, A rear plate 55 made of a disk is provided at the rear end portion as a rear member in the direction of transfer of the processed material. A tractor cylinder shaft 57 which is driven and rotated is connected to the machine frame 50a and is provided through the center of the machine frame 50a.

A plurality of cusps 52 are provided on the outer sides of the six cusps support members 56 .

In addition, a cylinder 58 connecting the front feeding portion 54 and the rear plate 55 is provided inside the six bristle tooth support members 56, and six bristle tooth support members 56 are provided in front and rear intermediate positions of the six bristle tooth support members 56. The rigidity is improved by providing an intermediate plate 59 connecting the cylinder 58 and the cylinder 58 .

The handling cylinder 53 is driven and rotated in the direction of the arrow (A). A first resistor plate 60a and a second downward resistor plate 60b are provided.

The lateral first resistance plate 60a and the downward second resistance plate 60b are provided so as to protrude from the machine frame 50a of the threshing device 5 into the threshing chamber 51, and their tips reach the vicinity of the rotation locus R of the threshing teeth 52. there is

Therefore, when the threshing cylinder 53 rotates in the direction of the arrow (A) in the threshing chamber 51 and the culms (processed material) are threshed by the threshing teeth 52, the first resistance plate 60a and the downward second resistance plate 60b gives movement resistance to the grain culm (processed material) and acts so that the threshing process can be performed appropriately.

That is, the first resistance plate 60a and the second downward resistance plate 60b provide movement resistance to the grain culms (processed material) to break the clumps of the grain culms (processed material), separate the straw from the grains, and perform the threshing process. It acts so that it can be done quickly.

In addition, the first resistance plate 60a and the downward second resistance plate 60b provide movement resistance to the grain culm (processed material) to increase the relative speed between the custard 52 and the grain culm (processed material), so that the grain is received. Grains can be efficiently collected by promoting the action of leaking from the net 50b.

In addition, since the lateral first resistance plate 60a and the downward second resistance plate 60b are made of an elastic material such as a rubber plate, a large amount of culms (processed material) are thrown into the threshing chamber 51 and threshed. When the processing amount is large, the lateral first resistance plate 60a and the downward second resistance plate 60b are pushed and deformed by the grain culm (processed material), and the distance between the tip and the rotation locus R of the bristle teeth 52 is increased. It is opened, and closed when there are few grain culms (processed material), and appropriate movement resistance can be given to the grain culms (processed material) regardless of the amount of threshing processing, and threshing can be performed satisfactorily. Then, the filling amount of the culms (processed material) in the threshing chamber 51 is made uniform as a whole, and the threshing process can be performed appropriately.

In addition, the lateral first resistance plate 60a and the downward second resistance plate 60b are provided with inclined portions 60a' and 60b' at their front ends (ends on the front side feed section 54 side). The thrown-in culms (processed material) are prevented from being caught on the front end portions of the laterally facing first resistance plate 60a and the downward facing second resistance plate 60b, and the grain culms (processed material) are appropriately moved backward. and threshing can be performed properly.

In addition, the lateral first resistance plate 60a and the downward second resistance plate 60b are fixed by wing bolts to elongated holes provided in the machine frame 50a of the threshing device 5 and extending in the direction of the threshing chamber 51. is loosened to change the amount of protrusion of the lateral first resistance plate 60a and the downward second resistance plate 60b into the handle chamber 51 (by changing the interval between the tip and the rotation locus R of the handle tooth 52). By tightening bolts to fix the laterally directed first resistance plate 60a and the downwardly directed second resistance plate 60b, movement resistance is given to the material to be processed according to the crops to be harvested so that the threshing process can be appropriately performed. be able to.

In the above example, two of the horizontal first resistance plate 60a and the downward second resistance plate 60b are provided, but only one of them may be provided. A plurality of second resistance plates 60b may be provided.

In the lower part of the handling chamber 51 formed by the handling cylinder cover 50, there are a general winch 61, a swing sorting shelf 62, a transfer shelf 63, a sheave 64, a straw rack 65, a first conveyor 66 and a second conveyor 67. is provided.

In addition, a spreader-type cutting device 68 for cutting straw waste discharged from the threshing device 5 is provided at the rear of the threshing device 5. The cutting device 68 has a rotary blade ( A chopper 69 and a cutting blade 70 that can be raised and lowered are provided at the lower front portion of the cutting processing device 68 .

Therefore, when the harvested culms are supplied from the elevator 3 to the threshing device 5, the threshing cylinder 53 rotates in the direction of the arrow B in the threshing chamber 51 of the threshing device 5 to thresh. At this time, by rotating the threshing cylinder 53 in the direction of arrow A, the harvested grain culms are transferred to the outlet 50d side of the threshing chamber 51 while being threshed, and the threshed grains are transferred to the swinging sorting rack from the receiving net 50b. The grains fall on 62 and are sorted by swinging of the swinging sorting rack 62 and air blowing from the winnowing 61, and the grains dropped from the swinging sorting rack 62 are first collected by the conveyer 66 and sent to the grain tank. The straw is sent from the outlet 50d to the cutting processing device 68, and discharged out of the machine after being shredded.

The threshed grains are sent to a grain tank, temporarily stored, and discharged from the grain tank by the discharge auger 15 at any time.

The threshing drum cover 50 has a receiving net 50b formed in a net shape in which grains and the like fixed to the machine frame 50a of the threshing device 5 fall downward, and the inner side in the lateral direction of the machine body is rotatable with respect to the receiving net 50b. and an upper handling cylinder cover 50c formed of an upwardly opening plate body whose outer side is locked in a closed state by a locking device.

In the first embodiment described above, an example of using six tooth support members 56 is shown, but the number may be increased or decreased to four, five, or seven as required.

Next, mainly referring to FIGS. 5 to 9, the combine showing Embodiments 2 to 4 will be specifically described.

<Another embodiment>
(1) FIGS. 5 and 6 show a second embodiment, in which a lateral first resistance plate 60a and a downward second resistance plate 60b are provided at a portion where the handling cylinder 53 in the handling chamber 51 moves from top to bottom. is provided.

Although an example in which two of the horizontal first resistance plate 60a and the downward second resistance plate 60b are provided has been shown, only one of them may be provided. A plurality of resistance plates 60b may be provided.

(2) FIGS. 7 and 8 show Embodiment 3, and the parts where the handling cylinder 53 in the handling chamber 51 moves from bottom to top and the parts where the handling cylinder 53 moves from top to bottom respectively. A downward facing second resistance plate 60b is provided.

Although an example in which the downward second resistance plate 60b is provided has been shown, a lateral first resistor plate 60a may be provided, and a plurality of lateral first resistor plates 60a and downward second resistor plates 60b may be provided. You can set it.

(3) FIG. 9 shows Embodiment 4, in which the resistance plates 60a and 60b are divided into a plurality of pieces.

That is, FIG. 9A shows an example in which the front divided resistance plate 61a, middle divided resistance plate 61b, and rear divided resistance plate 61c are divided into three.

FIG. 9(B) shows an example in which the front divided resistor plate 61a and the rear divided resistor plate 61c are divided.

The front division resistance plate 61a, the middle division resistance plate 61b, and the rear division resistance plate 61c are fixed by wing bolts to long holes provided in the machine frame 50a of the threshing device 5 and extending in the direction of the threshing chamber 51, respectively. , the wing bolt can be loosened to individually change the amount of protrusion into the handling chamber 51 (change the interval between the tip and the rotational locus R of the handling tooth 52). For example, if the amount of protrusion into the handling chamber 51 is reduced toward the front side, the processed material thrown into the handling chamber 51 is appropriately moved toward the rear side, and the threshing process can be performed appropriately. In addition, it can be finely set so as to give movement resistance to the material to be processed according to the crops to be harvested.

(4) Although the resistance plates 60a and 60b are made of an elastic material such as a rubber plate, they may be made of iron plates.

51 handling chamber 52 handling teeth 53 handling cylinder 57 handling cylinder shaft 60a resistor (first resistance plate)
60b resistor (second resistor plate)
60a' slant portion 60b' slant portion R rotation trajectory of the handle 52

Claims (6)

In a threshing device in which a threshing cylinder (53) having a plurality of threshing teeth (52) provided therein is rotatably driven by a threshing cylinder shaft (57) in a threshing chamber (51), A threshing device characterized in that resistors (60a, 60b) are provided in the vicinity of the locus of rotation (R) of teeth (52) to give movement resistance to the material to be processed. The threshing device according to claim 1, characterized in that the resistors (60a, 60b) are elastic bodies of rubber plates. 3. The resistors (60a, 60b) according to claim 1 or claim 2, characterized in that the tips of the resistors (60a, 60b) are plate bodies in the vicinity of the rotation locus (R) of the servicing teeth (52) along the servicing cylinder (53). threshing equipment. A threshing apparatus according to any one of claims 1 to 3, characterized in that resistors (60a, 60b) are provided at portions where the threshing drum (53) moves from bottom to top. The threshing apparatus according to any one of claims 1 to 4, characterized in that the resistors (60a, 60b) are provided so as to be adjustable with respect to the rotation locus (R) of the threshing teeth (52). . The threshing according to any one of claims 1 to 5, characterized in that inclined portions (60a', 60b') are provided at front end portions of the resistors (60a, 60b) in the moving direction of the processed material. Device.

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