JP2003180138A - Grain sorting structure for thresher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a grain sorting body easily detachable by inserting from rear side of a thresher that sorts grains threshed by a threshing drum in a threshing chamber by using a shaking sorter body rocking forth and back installed on lower part of the threshing chamber and sorting air fed from a blower. <P>SOLUTION: The thresher comprises the shaking sorter body 7 supported with a shaking link connector 18 at the front side and a shaking link connector 19 at the rear side and set as detachable by inserting from rear side of the thresher 1, and the blower 14 installed on the lower part of the threshing chamber 1, and sets the casing 36 of the blower 14 as a guide body for detaching the shaking sorter body 7 to the shaking link connector 18. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention sorts grains that have undergone threshing treatment in a handling chamber by a swinging sorting body provided below the handling chamber and swinging back and forth, and a sorting wind blown by a blower fan. The present invention relates to a structure for attaching / detaching a swing selection body in a threshing machine.

[0002]

2. Description of the Related Art Generally, a thresher mounted on a combine or the like is provided with a swinging sorter for swinging back and forth a processed product such as grains threshed by a barrel in a handling room, which is rocked back and forth. Sorting is performed by the body sorting function and the wind sorting function of the sorting wind blown by the blower fan.

In such a thresher, when the swing sorting body is attached to the lower part of the handling room, the rear portion of the body is opened and the swing sorting body is inserted from the rear side, and the front end portion and the rear end portion of the swing body are attached to the threshing machine. It is known that it can be rocked back and forth by being connected to a side connecting portion.

However, a receiving net provided on the lower surface of the handling room,
Since the gap with the blower fan provided below it is narrow, it is difficult to insert the tip side of the rocking sorting body into this gap from the rear, and to provide a separate guide for easy insertion, It is necessary to widen the gap between the net and the blower fan, and there is the inconvenience that the diameter between the handling cylinder and the blower fan is reduced accordingly.

Therefore, conventionally, the connecting portion on the front end side of the rocking sorting body is provided behind the blower fan, so that the position of this connecting portion is behind the front end of the left and right side plates of the thresher.
It was necessary to provide inspection windows on the left and right side plates in order to confirm the connection state at the connecting portion of the swing sorting body. Further, this connecting portion is surrounded by other members and is difficult to see, and particularly when finished in the same color as the other members, there is a problem that the connecting operation becomes more confusing with the other members and the connecting operation is not easy. .

[0006]

SUMMARY OF THE INVENTION The present invention was created in order to solve the above-mentioned problems, and includes a receiving net provided on the lower surface of a handling room and a blower fan provided below the receiving net. Even if the gap between the rocking sorting body and the rocking sorting body is small, the rocking sorting body can be easily inserted from the rear when the rocking sorting body is attached or detached. It is intended to provide an attachment / detachment structure of a swinging sorting body in a thresher that facilitates the attachment / detachment operation of the swinging sorting body by making it possible to confirm from the side of the machine without providing inspection windows on the left and right side plates of the machine. Is.

[0007]

Means for Solving the Problems In order to solve the above-mentioned problems, a technical means taken by the present invention is that a grain threshed by a handling cylinder in a handling room is shaken before and after being provided below the handling room. In a thresher configured to sort by a moving swinging sorting body and a sorting wind blown from a blower fan, the swinging sorting body,
A swinging link connecting portion that connects the front side and a swinging drive mechanism that connects the rear side are detachably supported so that they can be inserted and removed from the rear side of the thresher, and below the handling chamber. A blower fan is installed in the casing of the blower fan,
The swing selecting body inserted from the rear of the machine body is used as a guide body for attaching / detaching to / from the swing link connecting portion, and the swing link connecting portion is located in front of the left and right side plates of the threshing machine. In addition, the swing link connecting portion is color-coded with other members.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described in detail based on an embodiment shown in the drawings. First, FIG.
In FIG. 1, reference numeral 1 denotes a thresher mounted on a combine or the like, and a threshing chamber 2 formed in a front portion of the threshing machine 1 has a threshing tooth 3
A handling cylinder 4 with a fixed body is rotatably mounted on the handling chamber 2
A receiving net 5 is stretched on the lower surface of the so that the grains threshed by the rotation of the handling cylinder 4 leak through the receiving net 5. 6 is a front side plate of the handling room 2.

Further, a treatment chamber (not shown) is provided in parallel with the treatment chamber 2 on the rear side of the treatment chamber 2, and a treatment cylinder is mounted on the inside of the treatment chamber. When a mixed processed product such as a panicle that cannot leak through the receiving net 5 is sent from the handling chamber 2 to the processing chamber, the rotating processing cylinder further processes and separates grains. ing.

Below the handling chamber 2, a swing selecting body 7 is installed so as to swing back and forth toward the rear. As shown in FIGS. 1 and 2, the rocking sorting body 7 is provided with rocking flow plates 9, fins 10 and the like between the left and right side walls 8, 8 from the front to the back. A sorting net 11 is stretched below. Reference numeral 12 is a fin adjusting lever, and 13 is a straw rack.

Reference numeral 14 denotes a blower fan disposed below the handling cylinder 4, and the swinging and sorting body 7 is installed in the sorting wind passage formed by the blown air from the blower fan 14 so as to swing back and forth. Has been done. Reference numeral 15 is the first spiral that collects the sorted first thing, 16 is the second spiral that returns the second thing, and 17 is an exhaust fan.

The swing selecting body 7 has a front end portion detachably connected to a swing link connecting portion 18 provided on the machine body side, and a rear end portion detachably connected to a swing drive mechanism 19. The swing selection body 7 can be inserted and removed from the rear of the machine body.

That is, the left and right side plates 20, 20 of the thresher 1
At the front end of the blower fan 1, as shown in FIGS.
4, a fulcrum shaft 21 in the left-right direction is rotatably supported, and a oscillating shaft 23 parallel to the fulcrum shaft 21 is attached to the fulcrum shaft 21 via an oscillating link 22. By supporting, the swing link connecting portion 18 is formed in front of the blower fan 14.

Further, in the swing selecting body 7, a front link arm 24 is attached to the front end portions of the left and right side walls 8, 8 of the mounting bolt 2.
5, the front side link arm 24 is formed with a notch recess 24a on the front end side thereof, and the bolt 26 planted in the front side link arm 24 is fitted with a cantilever type lock spring 27. There is. The lock spring 27 has a base end side locked to the front side link arm 24, and a free end side has a step portion 27a formed between the upper surface of the cutout recess 24a and the step portion 27a of the lock spring 27. The oscillating shaft 23 is inserted to hold the squeezing force.

When the swing selector 7 is inserted from the rear of the machine, the swing link 23 is moved by the front link arm 24.
Since the rocking shaft 23 is pushed forward and the rocking link 22 rotates forward, the rocking shaft 23 is held by the lock spring 27, so that the rocking link connecting portion 18 connects the rocking sorting body 7 to the left and right side plates. 20 and 20 are located in front of the front ends. 28 is a rotation stopper of the swing link 22.

On the rear end side of the left and right side plates 20, 20 of the thresher 1, a swing drive mechanism 19 is provided near the second spiral 16 as shown in FIG. The swing drive mechanism 19 is one in which the swing bolt 30 swings back and forth around the swing fulcrum shaft 29 as a shaft center by the power of the machine body.

The swing support shaft 31 provided on the rear end side of the swing selector 7 is attached to the swing bolt 30 and the link arm 32.
The swing selection body 7 swings back and forth as the rotation fulcrum shaft 29 rotates forward and backward. 33 is a nut for fixing the link arm 32.

Reference numeral 34 is a slide guide provided on the side wall 8 of the swing selecting body 7, and 35 is a slide rail provided on the left and right side plates 20 of the threshing machine 1. When the swing selecting body 7 is attached,
As shown in FIG. 6, the swing selecting body 7 is inserted from the rear of the machine body, the slide guide 34 is slid along the slide rail 35 and the swing selecting body 7 is pushed in.
As shown in FIG. 8, after the link arm 24 provided at the tip of the swing selecting body 7 contacts the casing 36 of the blower fan 14, the casing 36 serves as a guide body and the tip of the swing selecting body 7. Side is inserted into the gap between the receiving net 5 and the blower fan 14, and then, as shown in FIGS.
The front side link arm 24 can be connected to the swing link connecting portion 18.

Further, the swing link connecting portion 18 provided at the front end portions of the left and right side plates 20, 20 is color-coded to be different from the other members in the vicinity thereof, so that when the swing selecting body 7 is attached or detached. The swing link connecting portion 18 is not confused with other members.

Since the present invention is constructed as described above, when the swing selecting body 7 is attached, first, the rear portion of the machine body is opened and the swing selecting body 7 is inserted, so that the slide rails provided on the left and right side plates 20 are provided. It can be smoothly pushed in along 35.

After the front side link arm 24 provided at the tip of the swing selecting body 7 contacts the casing 36 of the blower fan 14, the casing 36 serves as a guide body and the receiving net 5 of the handling chamber 2 and the blower fan. It can be inserted into the gap between the swing arm 14 and the swing arm 23 when the swing shaft 23 of the swing link connecting portion 18 is inserted into the cutout recess 24a of the link arm 24. Spring 27
Holds the swing shaft 23 under pressure.

Next, the swing support shaft 31 provided on the rear end side of the swing selecting body 7 is connected to the swing bolt 30 of the swing drive mechanism 19 via the link arm 32, whereby the swing fulcrum shaft 29.
The swing selection body 7 can be swung back and forth with the rotation of the.

In the above-described mounting operation, the tip of the swing selecting body 7 can be inserted into the gap between the handling chamber 2 and the blower fan 14 by using the casing 36 of the blower fan 14 as a guide body, so that a separate guide member or the like must be provided. Instead, it is possible to increase the diameters of the blower fan 14 and the handling cylinder 4 by that amount to improve the efficiency.

Further, since the swing link connecting portion 18 provided in front of the blower fan 14 is in front of the left and right side plates 20 of the thresher 1, the swing can be performed without providing an inspection window or the like on the left and right side plates 20. The connected state of the sorting bodies 7 can be easily confirmed from the side of the machine body, and the connecting work of the swing sorting bodies 7 can be performed quickly and reliably.

Further, since the rocking link connecting portion 18 is color-coded from other members, the rocking link connecting portion 18 is not confused with other members, and the work of connecting the rocking sorting body 7 is further facilitated. Become.

Further, since the swing link connecting portion 18 provided in front of the blower fan 14 can have a long distance from the swing drive mechanism 19, the swing link connecting portion is provided behind the blower fan 14. In comparison, it is possible to reduce the load applied to the swing link connecting portion 18 and the swing drive mechanism 19 when the swing sorting body 7 swings.

[0027]

In summary, according to the present invention, the grain that has been threshed by the handling cylinder in the handling chamber is provided below the handling chamber and swings back and forth. In a thresher adapted to be sorted by wind, the swing sorting body is detachably supported by a swing link connecting portion connecting the front side thereof and a swing drive mechanism connecting the rear side thereof. A swing fan which is configured so that it can be inserted and removed from the rear of the thresher, a blower fan is disposed below the handling chamber, and the casing of the blower fan is inserted from the rear of the machine to the swing link. As a guide body at the time of attaching and detaching to the connecting portion, also, the swing link connecting portion is located in front of the left and right side plates of the thresher, and further, since the swing link connecting portion is color-coded with other members, From the rear of the machine when attaching the detachable swing sorter Off to the oscillating sorting body, since the front side and out the casing of the blower fan as a guide can be connected to the swing link connection portion, it is possible to easily detachable operation of the oscillating sorting member. Moreover, since it is not necessary to separately provide a guide member or the like between the handling chamber and the blower fan, the diameters of the blower fan and the handling cylinder can be increased by that amount.

Further, the swinging link connecting portion located in front of the side plate of the threshing machine has a connecting state between the swinging link connecting portion and the swinging selection body without providing an inspection window on the side plate of the threshing machine. Since it can be confirmed from the side of the machine, connection work can be performed quickly.

Further, if the swing link connecting portion is color-coded with other members, the swing link connecting portion will not be confused with other members, and the connecting operation of the swing selecting body will be easier.

[Brief description of drawings]

FIG. 1 is a side view of a swing selection body.

FIG. 2 is a plan view of the same.

FIG. 3 is a partially enlarged view of FIG.

FIG. 4 is an enlarged side view of a swing link connecting portion.

FIG. 5 is an enlarged side view of the swing drive mechanism.

FIG. 6 is a side view showing a state in which the swing selection body is inserted from the rear of the machine body.

FIG. 7 is a side view showing a state where the tip of the rocking sorting body inserted in the same as above reaches the casing of the blower fan.

FIG. 8 is a side view showing a state in which the same swing sorting body is guided and inserted into the casing of the blower fan.

FIG. 9 is a side view showing a state in which the tip of the swing selecting body reaches the swing link connecting portion.

FIG. 10 is a side view showing a state in which the tip of the swing selecting body is connected to the swing link connecting portion.

[Explanation of symbols]

2 handling room 4 handle 7 Swing sorter 14 Blower fan 18 Swing link connection 19 Swing drive mechanism 36 Blower fan casing

Continued front page    (72) Inventor Atsuya Itohara             Shimane Prefecture Yatsuka-gun Higashi Izumo-cho Ojiyacho 667             1 Within Mitsubishi Agricultural Machinery Co., Ltd. (72) Inventor Shinya Kanemoto             Shimane Prefecture Yatsuka-gun Higashi Izumo-cho Ojiyacho 667             1 Within Mitsubishi Agricultural Machinery Co., Ltd. F term (reference) 2B095 AA01 AA07 AA12 BA01 BA21                       BA23 BA30 BB01 BB44 CA01                       CB17 FA12

Claims (3)

[Claims] 1. Grains that have undergone threshing processing in the handling barrel in the handling chamber are sorted by a swinging sorting body provided below the handling chamber and swinging back and forth, and a sorting wind blown by a blower fan. In the threshing machine described above, the swing selecting body is detachably supported by a swing link connecting portion connecting the front side thereof and a swing drive mechanism connecting the rear side thereof, and is inserted from the rear of the threshing machine. In addition to being detachable, a blower fan is arranged below the handling chamber,
A swing selecting body attaching / detaching structure in a threshing machine, wherein the casing of the blower fan serves as a guide body for attaching / detaching the swing selecting body inserted from the rear of the machine body to the swing link connecting portion. 2. The attaching / detaching structure of an oscillating sorter in a threshing machine according to claim 1, wherein the oscillating link connecting portion is located in front of the left and right side plates of the threshing machine. 3. The structure for attaching and detaching an oscillating sorting body in a threshing machine according to claim 1, wherein the oscillating link connecting portion is color-coded with other members.