JPH11187756A - Treating chamber structure for thresher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a treating chamber structure for a thresher capable of excellently carrying out the rocking and selection of a treated material which is a discharged dust material discharged from the dust discharging port of a treating chamber and selected and transported on a straw rack without disturbing the treated material and excellently performing the discharge of the discharged dust material out of a machine body. SOLUTION: A treating chamber 2c is connected to the end part of a threshing cylinder and a rocking and selecting body 6 and a dust discharging fan 5 are installed in the longitudinal direction below the treating chamber to give a thresher. A partition wall 23 is laid at the end part of a treating net 21 of the treating chamber 2c of the thresher. A dust discharging port 25 is opened to the upper side of the dust discharging fan 5 and the partition wall 23 is disposed at the upper side of the end part of a straw rack 64 of the rocking and selecting body 6 to give the objective treating chamber structure of the thresher.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a processing chamber structure of a threshing machine.

[0002]

2. Description of the Related Art Conventionally, a threshing machine in which a processing chamber is continuously provided at an end portion of a handling cylinder, and a thrusting operation is performed by installing a swinging sorter and a dust exhaust fan in a longitudinal direction below the processing chamber. A processing chamber exhaust port formed at the end of the processing net of the processing chamber,
The swing sorter is provided with an opening on a straw rack.

[0003]

However, in the threshing machine having the above-mentioned conventional structure, the processing chamber exhaust port formed at the end of the processing net of the processing chamber faces the straw rack of the oscillating sorter. Because of the open structure, the dust discharged from the processing chamber dust outlet is discharged onto the straw rack, and the straw rack disturbs the flow of the processed material during sorting and transfer. When the dust discharged from the straw rack and the dust discharged from the processing chamber dust outlet collectively and collectively are sent to the dust discharge fan at the same time as there is a defect that causes a defect. In addition, there is a problem that it is not possible to discharge the dust to the outside of the machine smoothly.

[0004]

In order to solve the above-mentioned conventional problems, a processing chamber structure of a threshing machine according to the present invention firstly has a processing chamber connected to an end of a handling cylinder and a processing chamber below the processing chamber. In the threshing machine in which the swinging sorter and the dust exhaust fan are installed in the front-rear direction, a partition wall is provided at the end of the processing net of the processing chamber, and the processing chamber exhaust port is opened above the dust exhaust fan. In addition, the partition wall is located above the end of the straw rack of the swing sorting body.

Second, the discharge end of the partition wall is bent toward the dust discharge fan.

Thirdly, the exhaust fan is constituted by a cross flow fan, and the exhaust from the exhaust outlet of the processing chamber is directly dropped on the cross flow fan.

[0007]

An embodiment of the present invention will be described with reference to the drawings. In FIG. 1, A is a threshing machine that can be mounted on a machine base B of a harvester such as a combiner, and the threshing machine A stretches a feed chain 3 in a front-rear direction along a handling room 2 formed in the machine body 1. At the same time, a straw transporting band 3a is continuously provided at the end, and the harvested culm is supplied to the handling room 2 for threshing, and the treated culm is processed by a culm processing device (cutter) C installed at the rear of the machine body 1. They are transported and post-processed.

The threshing machine A comprises a handling cylinder 2
The processing chamber 2c which houses the processing drum 20 and the processing net 21 is connected to the terminal end side of the a and the handling net 2b. The processing chamber 2c is formed by the blower fan 4 and the dust discharge fan 5 installed before and after the machine body 1 below these. The swing sorting body 6 is mounted so as to be swingable in the front-rear direction in the sorting wind path F, and the first thing is placed under the swing sorting body 6 in the grain tank 7b through the fryer cylinder 7a. A first gutter 7 to be housed and a second gutter 7d for reducing the second product to the swing sorting body 6 via the reduction cylinder 7c are arranged, and are directed to the straw rack 64 portion of the swing sorting body 6 therebetween. And a blower fan 7e for blowing the sub-selection wind from below.

Dust fan 5 installed at the rear of the machine body 1
Is a drum-shaped cross flow fan 52 in a fan case 51.
And both walls of the threshing machine A (threshing machine wall) 1a
A rear wall (threshing machine wall) of the opening K, which is opened at the rear of the fan case 51, is installed so that the left side of the fan case 51 can be opened and closed by a vertical axis 53 and the right side is locked. It is switched to an open state in which the opening K is opened by releasing the locking member and opening it laterally about the longitudinal axis 53 by detachably fastening to the machine wall 1a by a tool (not shown). It is configured to be possible.

[0010] The culm treatment device C is mounted so as to be able to open laterally around the right vertical axis (not shown).
When opening the opening K, the dust removing fan 5 and the dust removing fan 5 are widely opened so as to be in a double-open state, the rear part of the body 1 is widely opened without any obstacles, and the swing sorting body 6 is removed. In addition, the assembling work can be performed simply and efficiently, and the maintenance work such as cleaning and inspection and maintenance in the threshing machine A can be easily performed.

The rocking sorter 6 has a transfer plate 61 and a chief sheave 62 between the left and right side walls 6a from the front, and a filter 8 below the chief sheave 62. 7 and a plurality of straw racks 64 protrude from the rear end of the first flow plate 63, and the lower part of the second gutter 7d is provided below the straw rack 64. The second flow plate 65 for letting down the goods is slanted, and these are integrally framed.

The swing sorter 6 having the above structure
The support link 10 has a front and rear part of a conventional configuration.
a and a drive mechanism 10 for swingably driving and detachably supporting the swinging sorter 6 from the rear of the body 1 so that the support state thereof can be released. A guide body 66 fixed to the front end of the swing sorting body 6 is slidably mounted on the guide rail 1b protruding inward, and the swing sorting body is released in a state where an operation lever (not shown) is released. 6 is slidably guided in the front-rear direction so that the insertion / removal operation can be easily performed.

As shown in FIGS. 1 to 3, the processing chamber 2c has a starting end communicating with a back end (ear end) at the end of the handling chamber 2 like a conventional processing chamber. , Its processing cylinder 2
0 is extended to a position close to the rear wall 1 d of the body 1, and the first processing net 2 is mounted on the outer periphery of the processing cylinder 20 from the starting end side.
A processing network 21 including a 1a and a second processing network 21b is provided. Then, as shown in the figure, in the present embodiment, at the end of the second processing net 21b, the processing cylinder 20 is wrapped around the rotation trajectory of the processing tooth 22 in a state of being inserted into the through hole, and the processing object is processed. A partition wall 23 for guiding the partition is provided, and a processing chamber exhaust port 25 is formed downward between the partition wall 23 and the rear wall 1 d above the dust exhaust fan 5. A plurality of processing teeth 22 are protruded within the range of the processing net 21, and a plurality of blades 26 for facilitating discharge of dust are protruded within the width of the processing chamber dust outlet 25.

In the illustrated example, the partition wall 23 is installed at a position substantially immediately above the end of the straw rack 64 of the swing sorting body 6, whereby the partition wall 23 is discharged from the processing chamber dust outlet 25. The processed material is discharged toward the cross flow fan 52 rotating in the dust discharge fan 5 without directly dropping it on the straw rack 64, thereby facilitating prompt discharge of the dust discharge fan 5 from the apparatus. It is configured to be able to. That is, the shape of the partition wall 23 is such that the outer periphery of the portion extended downward and to the side forms the guide surface 23a of the processing object, which is bent toward the dust discharge fan 5 side, and the tip end (discharge end) thereof. ) Is positioned rearward from the upper edge 65a of the flow plate rising above the second flow plate 65, and the dust discharged from the processing chamber dust outlet 25 is being oscillated and transferred by the oscillating sorter 6. It prevents the processed material from being disturbed or mixed with the processed material.

The partition wall 23 is provided with a through hole into which the processing cylinder 20 is inserted so as to be deviated downward, so that long waste such as straw in the processing chamber 2c can be smoothly removed without clogging with a wet material. When the upper end of the upper side 65a of the flow plate is bent toward the front side, it is more effective in preventing the mixed flow.

As shown in FIGS. 3 and 4, a gap formed between the swing sorting body 6 and the front case wall 51a of the fan case 51 so as to allow the swing sorting body 6 to swing. H is provided with a dustproof structure 9 for preventing the intrusion of dust and for smoothly swinging the swing sorting body 6 without large swing resistance. That is, the dustproof structure 9
Is an upper dustproof plate 90 attached to the end side of the swing sorting body 6,
It comprises a lower dust-proof plate 91 attached to the front case wall 51a, both of which are flexible elastic plates made of rubber or synthetic resin material, and are separated from each other by free sliding ends. The swing sorting body 6 is provided in the same direction as the swinging direction of the swing sorting body 6, so that the swing sorting body 6 swings smoothly, and the upper dustproof plate 90 is moved with the swinging movement. The lower dust-proof plate 91 properly follows this even if vibrates violently,
Intrusion of dust between the two can be prevented well.

In the dustproof structure 9, the free end side of the upper dustproof plate 90 is formed so as to protrude rearward longer than the free end of the lower dustproof plate 91 in the above-mentioned joined state. The free end of the lower dust-proof plate 91 is not exposed even when swinging back and forth. As a result, the dust discharged from the swinging sorting body 6 and the dust discharged from the processing chamber 2 c are placed on the upper part of the long upper dustproof plate 90 and are blocked by the dust discharging fan 5.
The upper dustproof plate 90 and the lower dustproof plate 9 are guided to the side.
The upper dust-proof plate 90 and the lower dust-proof plate 91 have elasticity with respect to the movement of the swing sorting body 6 which can satisfactorily swing, while at the same time preventing the intrusion of dust into the joint portion with the first dust-proof plate. It is possible to satisfactorily prevent dust in the gap portion H while appropriately maintaining the joined state by force.

In the threshing machine A constructed as described above, when husks are threshed in the handling room 2 and the processing room 2c, grains and small straw chips among the threshing material are removed from the handling net 2b, the processing net 21 and the like. In addition to causing the net to separate in the net sorting, the swing sorting body 6 receives this to perform a swinging motion and a sorting action by a sorting wind, and removes the first thing from the first flow plate 63 to the first gutter 7 and the hoisting cylinder 7a. After the long wastes such as straw are sent out from the straw rack 64 to the sorting wind path F, the second product is transferred from the second flow plate 65 to the second gutter 7d and reduced. Re-sorting is performed by returning to the front of the swinging sorter 6 via the cylinder 7c. Further, the dust sent from the swing sorting body 6 and the dust discharged from the processing chamber dust outlet 25 of the processing chamber 2c are separated from the sorting wind formed by the blowing fan 4 and the dust discharging fan 5. The air is sucked by the dust exhaust fan 5 and guided along the rear wall 1d and the rear wall of the fan case 51, and the dust exhaust fan 5 quickly sucks and discharges the air toward the outside of the apparatus.

In such a threshing operation, among the processed products including the grains, the straw and the like that have been threshed in the handling room 2, the processed products that have not leaked from the receiving net 2b are transferred from the terminal end to the processing chamber 2c.
The grains and small debris leak from the processing net 21 and are subjected to wind sorting at the straw rack 64 of the swinging sorting body 6 located below. While being dropped, the rocking sorting of the rocking sorting body 6 is sorted into a second material to be re-sorted and a dust transferred and discharged backward from the straw rack 64.

Dust such as long straw which does not leak from the processing net 21 is sent out to the processing chamber exhaust port 25 side with the rotation of the processing drum 20 and is sent to the processing chamber by a blade 26 at the end. The dust is discharged radially downward from the dust discharge port 25, and is sucked by the dust discharge fan 5 together with the dust discharged from the swing sorting body 6 and discharged outside the machine. At this time, since the partition wall 23 provided at the end of the processing net 21 and above the position corresponding to the end of the lower straw rack 64 overlaps with the processing teeth 22, the transfer in the discharge direction of the processed material is temporarily performed. The stagnation process is promoted while being delayed, and the guide surface 23a of the discharge end guides and discharges the dust to the dust discharge fan 5 while preventing the dust from dropping to the straw rack 64 side.

As a result, the dust discharged from the processing chamber dust outlet 25 of the processing chamber 2c, which is disposed so as to be deviated to one side of the machine, vigorously sorts and transfers the processed material on the straw rack 64. The swing sorting of the processing object on the straw rack 64 can be favorably performed without causing sorting failure due to disturbing toward the other side. Further, since the cross-flow fan 52 for directly scraping and discharging the straw and the like within the machine width is rotatably mounted on the horizontal axis so that the horizontal axis can be rotated, the dust discharge fan 5 drops vigorously from the processing chamber discharge port 25. While receiving the incoming dust directly in the width direction, it can be discharged smoothly out of the machine together with the dust sent out from the swinging sorting body 6 without clogging and the like, and the sorting performance is good. It can perform highly efficient threshing work.

[0022]

Since the present invention is configured as described above, the following effects can be obtained. According to the first aspect of the present invention, at the end of the processing net of the processing chamber, a partition wall is provided so as to be located above the end of the lower straw rack, thereby forming a processing chamber exhaust port. Exposed to the upper part of the exhaust fan, the dust exhausted from the exhaust port of the processing chamber is discharged onto the straw rack and discharged to the exhaust fan without disturbing the sorting and transfer. High-efficiency threshing work with good sorting performance, as well as being able to perform rocking and sorting well and discharging dust to the outside of the machine using a dust fan. It can be performed.

According to the second aspect of the present invention, the discharge end of the partition wall provided at the end of the processing net is bent toward the dust discharge fan, so that the dust discharged from the processing chamber discharge port is discharged. Can be satisfactorily discharged to the dust discharge fan side while being guided by the guide surface and prevented from dropping to the straw rack side.

According to the third aspect of the present invention, the dust exhaust fan is constituted by a cross flow fan, and the dust from the exhaust outlet of the processing chamber is directly dropped on the cross flow fan, so that the dust in the processing chamber is discharged. Dust that vigorously falls from the mouth is scraped out while being directly received by a transverse flow fan that is installed horizontally across the machine width and rotates on the horizontal axis. It can be discharged out of the machine smoothly without any trouble.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a threshing machine having a processing chamber structure according to the present invention.

FIG. 2 is a rear sectional view showing the threshing machine of FIG. 1 with a part cut away.

FIG. 3 is a side sectional view showing a processing chamber structure of the present invention.

FIG. 4 is a perspective view of a dustproof structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Airframe 2 Handling room 2c Processing room 5 Dust fan 6 Swinging sorter 9 Dustproof structure 20 Processing cylinder 21 Processing net 22 Processing teeth 23 Partition wall 23a Guide surface 25 Processing room exhaust port 26 Blade plate 51a Front case wall 52 Crossing Flow fan 64 Straw rack 65 Second flow plate A Threshing machine

Claims (3)

[Claims] 1. A threshing machine in which a processing chamber is connected to an end portion of a handling cylinder, and a swing sorter and a dust exhaust fan are installed below the processing chamber in a front-rear direction. A threshing machine characterized in that a partition wall is provided in the section, the processing chamber exhaust port is opened above the dust exhaust fan, and the partition wall is located above the end of the straw rack of the swing sorter. Processing chamber structure. 2. The processing chamber structure of a threshing machine according to claim 1, wherein the discharge end of the partition wall is bent toward the dust discharge fan. 3. The threshing machine according to claim 1, wherein the exhaust fan is a cross-flow fan, and the exhaust from the exhaust port of the processing chamber is directly dropped onto the cross-flow fan. Processing chamber structure.