JP2586226Y2 - Sorting device in threshing machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sorter for a combine threshing machine for threshing grain culms, legumes, or cut crops.

[0002]

2. Description of the Related Art Conventionally, a swing sorting body which swings back and forth is installed in a sorting air passage extending from a lower part of a handling chamber to a dust sorting chamber behind the handling room, and a most leak sorting part of the swing sorting body. There is already known a threshing machine sorting apparatus in which a coarse sorting unit having a large number of fins connected in a row facing upward is provided, and the inclination angle of the fin is adjusted by an operation wire for pulling and a spring for returning. ing.

[0003]

In the known threshing machine sorting apparatus, when the threshing sorting process is continued and a foreign matter such as straw waste is caught between the fins, the proper opening of the fin is determined. Therefore, the sorting performance could not be made appropriate. Further, since the tension of the spring changes between when the fin is opened and when the fin is closed, the fixing force is different, and it is difficult to select the inertia force due to the swing of the fin and the strength of the spring.

[0004]

According to the present invention, an oscillating sorter swinging back and forth is installed in a sorting air passage extending from below a handling chamber to a dust sorting chamber behind the handling chamber. In a threshing machine in which a coarse sorting section comprising a large number of tiltable fins is provided at a portion facing the most leaky sorting section, and a rocking member for tilting the fins is provided on a side of these fins, Both ends of the two-folded operation wire are distributed and connected to both sides of the center of rotation of the moving member, and the bent portion of the operation wire is connected to a forward / reverse rotating body to open and close the fin. The above-mentioned problem was solved by configuring the tilting mechanism by the pulling force of the operation wire.

[0005]

[Action] Threshing material generated in the handling room and leaked from the receiving net,
After being sorted in the rough sorting section composed of fins, the process proceeds to the most leak sorting section and undergoes sieve sorting and air sorting, and the sorts remaining on the rough sorting section and the most leak sorting section are two or more. The process proceeds to the downflow screening section, where the air is screened while being further screened. When adjusting the leakage performance by changing the inclination angle of the fins according to sorting conditions such as the amount (layer thickness), kind, or moisture content of the object to be treated, turning the ring body to one side causes an operation. One end of the wire pulls a portion of the swinging member that is separated from the center of rotation to one side to tilt the fin to one side, and when the ring is turned to the other side, the other end of the operation wire turns the swinging member to the side. The fin is tilted to the other side by pulling a portion separated from the moving center to the other side. In other words, when the leakage gap of the fin is widened or narrowed, the operation wire is tilted by forcible pulling, so even when foreign matter enters between the fins, the abnormality of the fin opening is understood, and The fins can be inspected in a timely manner, and the oscillating members that tilt the fins at both ends of the operation wire are held on both sides of the center of rotation. Sorting can be performed. Also, the load on the motor becomes almost constant.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to a combine threshing machine shown in the drawings. A grain stalk-carrying and conveying device comprising a feed chain 3 and a banding rail 4 is provided on the outside, and a dust outlet 5 is provided at the rear end of the handling chamber 1 on the side opposite to the side where the grain-stalk-and-carrying device is provided. Provided and the dust outlet 5
From the outside to the side of the rear dust separation chamber 6
A processing chamber 8 having a processing cylinder therein is provided, and an axial flow type wind turbine (not shown) having a thin front-to-rear width is provided at the upper part of the rear wall of the dust separation chamber 6. Dust guide plate 6a on the surface
Is provided. In addition, a straw conveying device is provided on a top plate of the dust sorting chamber 6, and a straw processing device such as a cutter 9 or a binding device is mounted on a rear portion thereof.

[0007] The blower wind turbine 10 disposed at the lower front side of the handling room 1 is located above and behind the first gutter 11 having the first transfer spiral therein and the second gutter 12 having the second transfer spiral therein. A sorting air passage that blows through the dust removing section through the dust sorting chamber 6 is formed, and the sorting air passage includes a rough fin 13 composed of a corrugated transfer plate 13a and a number of fins 13 connected to the rear end thereof. An upper-stage sorting path constituted by a sorting unit; a wave-transfer plate; a most-leakage-sorting unit 14 formed of a crimp net connected to the rear end and facing the first receiving gutter 11; A second leak sorting unit 15 composed of a straw rack facing upward, disposed between the front end of the second leak sorting unit 15 and the foremost leak sorting unit 14, The second flow trough 1 which is disposed at the rear of the first flow plate 16 which has penetrated and the second The oscillating sorting body 20; and a lower sorting pathway, which is constituted by a double-dip flow plate 17 which has entered into,
It is supported to swing back and forth by a swing mechanism described later.

Then, the first flow plate 16 and the second flow plate 1
Reference numeral 7 designates a flat plate-like flow-down portion 16a extending over the entire inner width of the oscillating sorter 20 and side plate portions 16b, 16b rising from both sides to form a triangular shape in a side view. The side plate portion 16 is formed by a plate.
b, 16b are on the side plates 20a, 2 of the swing sorter 20
No. 0a is superimposed on the outer surface, and the bolt 16
The upper end of the downstream part 16a is
Both sides the side plate 20a, the cross-sectional inverted L by polymerizing the lower surface of the upper plate 16 ₁ consisting of a fixed iron plate 20a caul 1
6 ₂ screwed together with the shape retaining member 18 is made of a U-shaped spring rod, the inclined portion 18a of the side, and bent toward the upper end of 18a inwardly, the bent portion, the backing plate 16
₂ and the inclined portions 18a, 18a
The lower part of the flow-down part 16a is placed on the lateral portion 18c of the lower end along the both sides of the lower part 16a, and is folded back so as to be rolled down and polymerized and adhered with an adhesive.

Next, the swing mechanism will be described.
The brackets 21 and 21 are fixed to the front of the left and right side plates 20a and 20a of the swing sorting body 20, and these brackets 2
Idler wheels 23, 23 made of bearings are attached to both ends of a shaft 22 supported on 1, 21 and are introduced into the plates 25, 25 screwed to the left and right side walls by lowering the front and bending the upper part obliquely rearward and downward. Lower guide plate 26 serving as guide portion 26a
The upper guide plate 27, which is parallel to the upper guide plate 27 and serves as a stopper 27a for bending the lower end obliquely rearward and downward toward the lower end of the lower guide plate 26 to receive the idler wheel 23 at the lower lower limit, is fixed. Stopper 27a of upper guide plate 27
A gap H is provided between the lower end of the upper guide plate 26 and the lower guide plate 26 to remove chips, and the idler wheel 23 is movably fitted between the upper guide plate 27 and the lower guide plate 26. To support the front part of the rocking sorter 20 and rotatably support the rocking shaft 30, which is supported on the lower surface of the rear part, to the upper parts of the rocking arms 31, 31 whose lower parts are rotatably supported on the side walls. The eccentric portion of the eccentric wheel 33 attached to the drive shaft 32 is interlocked to the swing shaft 30 via a crank rod 35, so that when the drive shaft 32 rotates, the swing sorting is performed. The front part of the body 20 includes the upper and lower guide plates 2 on the left and right sides.
The idler wheels 23, 23 move up and down diagonally by 6, 27, and the rear part moves up and down diagonally around the lower axis of the swing arms 31, 31.

[0010] A swing sorting body 2 on the rear wall of the dust sorting chamber 6 is also provided.
A portion facing the "0" is formed in a dust outlet 36, and both ends of a lower rear wall 37 are detachably screwed to receiving plates 38, 38 fixed to the inner surface of the rear end of the side wall by bolts 39. The oscillating shaft 30 is composed of a semicircular fixed holder 40 fixed to the lower surface of the oscillating sorter 20 and semicircular holders 42, 42 detachably screwed with bolts 41,. Since it is mounted with the bush 43 made of synthetic resin interposed, the bolts 41.
By removing the swing shafts 2 and 42, the swing shaft 30 can be separated from the swing sorting body 20.

The pins 44 fixed to the upper ends of the fins 13 of the upper sorting path are connected to the side plate 20 of the swing sorting body 20.
The lower pin 46 is loosely fitted into the hole of the lower receiving plate 47 so as to be freely rotatable in the hole of the upper receiving plate 45 which is long before and after being screwed together on the inner side of the inner surface of the lower receiving plate 47. The upper pin 44 protruding from the fin 13 to one side is inserted through a round hole formed in the side plate of the swing sorting body 20, and the lower pin 46 is formed into an arc-shaped long hole 20b formed in the side plate 20a. Arm 4 which is loosely fitted to the end of the pin 44, 46
The lower end of the fulcrum shaft 8 is slightly lower than the middle on the side plate 20a.
9, a connecting pin 54 and a sliding body are fitted into the long hole 51 of the swinging member 50 pivotally supported at 9 and interlockingly connected.
The two ends of the operation wire 52 are connected to the upper and lower portions of the fulcrum shaft 49 with the springs 54 and 54 interposed therebetween, respectively, and the operation wire 52 is folded into two to form a loop. Since the bent portion is connected to the wheel body 55 attached to the rear upper inner surface of the side wall and rotated by the motor 53 that rotates forward and backward and is partially fixed by the fixing tool 56, the bent portion is connected. Regardless of the direction in which the 55 rotates, the swinging member 50 accurately swings at a predetermined angle due to the pulling force of the operation wire 52 in accordance with the angle of rotation, so that even if foreign matter is interposed, 13
.. The leakage gap can be accurately changed. Also,
The spring 61 absorbs the inertial force generated when the fins 13 swing, and the inertial force is not directly transmitted to the motor 53, so that the motor 53 can be protected from the impact due to the inertial force.

Further, the swing sorter 20 is used for inserting and removing the swing sorter 20 from the rear portion of the lower guide plate 26 on the inner surface of the left and right side walls to a portion corresponding to an intermediate portion of the second leak sorter 15. Guide rails 57, 57
A stopper 60 is provided at the rear end of the guide rails 57, 57, and when the swing sorting body 20 is pulled out, the rear wall 37 and the left and right holders 42, 42 are provided.
After removing the swing arms 31 and 31 and the swing shaft 30, the rear part of the swing sorting body 20 is slightly lifted and pulled rearward, and the idler wheels 23 and 23 are moved up and down by the upper and lower guide plates 26 and 27. Escape from between and guide rails 57,5 on left and right
7 can be pulled out easily because it rides on the front end of 7 and can be easily pulled out rearward. In the final stage, the idler wheels 23 contact the stoppers 60 of the guide rails 57, and it is dangerous to pull out further. I understand exactly.

When the culm is harvested and threshed by the above-mentioned combine, the culm harvested and conveyed by the pre-processing device has its root portion inherited by the feed chain 3 of the threshing machine and the front end of the pinching rail 4, and The side is inserted into the handling room 1 from the supply port, threshing by the handling cylinder 2, generated in the handling room 1, leaks from the receiving net 2a, and falls on the waveform transfer plate 13a of the upper sorting path. The thresh containing fine straw waste is sieved and sorted in the rough sorting section, and the leaked material is transferred to the first leak sorting section 14 in the lower sorting path, subjected to sieve sorting and air sorting, and subjected to the first drainage 11 The grains dropped into the hopper are transported out of the machine by the first transfer spiral, thrown into the grain tank by the grain-lifting machine, and thrown from the rear end of the most leaky sorting unit 14 and the rear end of the upper sorting path. The sorted material that has been transferred to the second leak sorting unit 15 is again subjected to sieve sorting and wind sorting there, and is leaked. The second thing dropped into the catch gutter 12 is carried out to the side by the second transfer spiral and returned to the starting end side of the swing sorting body 20 or the inside of the handling room 1 by the second reduction device and is reprocessed. You.

In the meantime, the straw chips blown up by the sorting wind fall between the upper and lower guide plates 26 and 27, and the straw chips fall from the lower gap H. No clogging during 27. In addition, the kernels in the sorted material thrown rearward from the rear end of the first leak sorting unit 14 with the forward and backward swinging of the swing sorting body 20 have a large specific gravity. the falling portion 16a flows down to落入on the upper plate 16 ₁ and the top flow plate 16 and anti-scattering of the lateral right and left side plate portions 16b, blocked by 16b, this time, flow down part 16a Although the intermediate portion tends to hang down due to elastic deformation, the horizontal portion at the lower end of the shape holding member 18 holds the lower end of the downstream portion 16a in a straight line, so that the sorting wind is substantially in the width direction of the downstream portion 16a. If the inclined portion of the shape retaining member 18 is fixed along the lower end portion of the side plate portion 16b by bonding or other appropriate means, the entire flow lower portion can be further improved. It can be held in a flat shape. The downstream part and the side plate part of the second flow plate 17 are made of an elastic plate, and the shape holding member 18 is attached thereto, so that the same operation as that of the first flow plate 16 is performed.

When the leakage gap of the fins 13 is adjusted by the layer thickness of the material to be sorted, the corrugated transfer plate 1
A detector consisting of a sensing roller that moves up and down while rolling on the object to be sorted on the end portion of the 3a or the front fins 13... Detects the layer thickness, and based on this detection result, or by operating a manual switch Since the motor 53 rotates forward or backward and the bent portion of the operation wire 52 rotates together with the ring 55, the pulling force of the operation wire 52 in both the front and rear directions of the swing member 50. Oscillating, allowing the leakage gap of the fins 13... To be precisely adjusted as described above.

[0016]

According to the present invention, as described above, a swinging sorting body 20 that swings back and forth is installed in a sorting air passage extending from below the handling chamber 1 to the dust sorting chamber 6 behind the handling chamber 1. At a portion of the sorting body 20 facing the most leaky sorting portion 14, a rough sorting portion including a large number of tiltable fins 13 is provided.
In a threshing machine provided with a rocking member for tilting the fins 13 on the sides of the thruster, the two ends of the two-folded operation wire 52 are distributed and connected to both sides of the center of rotation of the rocking member. Since the bent portion of the operation wire 52 is linked to the forward / reverse rotating body 55 so that the fins 13 are tilted by the pulling force of the operation wire 52 both when opened and closed, the fins 13・ Even if foreign matter is caught in the middle, the abnormal opening of the fins 13 ・ ・ is immediately understood, and when the fins 13 ・ ・ enter in a timely manner, the abnormal fin opening is immediately understood. Can be inspected to remove foreign matter and improve sorting performance. Also, fin 1
The posture holding force of 3... Becomes constant over the range from the time of opening to the time of closing, so that the fluctuation due to the oscillating inertia can be reduced and the sorting performance can be stabilized. Further, the load on the motor 53 becomes constant, and the durability thereof can be improved.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a threshing machine.

FIG. 2 is a cross-sectional view in which a part of the same is developed.

FIG. 3 is a vertical sectional view of a front side of a sorting unit.

FIG. 4 is a longitudinal sectional view of the rear part of the above.

FIG. 5 is a front view of the first flow plate.

FIG. 6 is an expanded cross-sectional view of a swing sorting body guide portion.

FIG. 7 is a developed sectional view of a fin opening adjustment section.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Handling room 10 Blower windmill 11 First gutter 12 Second gutter 13 Fin 14 Most leaking selection part 16 First flow plate 17 Second flow plate 18 Shape holding member 20 Swing sorter 23 Idling wheel 26 Lower guide Plate 27 Upper guide plate 27a Stopper

Claims (1)

(57) [Scope of request for utility model registration] 1. A swing sorting body 20 swinging back and forth is installed in a sorting air passage extending from below the handling chamber 1 to the dust sorting chamber 6 behind the handling chamber 1, and the swing sorting body 20 is most leaked. At a portion facing the sorting portion 14, a rough sorting portion including a large number of tiltable fins 13 is provided.
.. in a threshing machine provided with a rocking member for tilting, the two ends of a two-folded operation wire 52 are distributed and connected to both sides of the rotation center of the rocking member, and the operation wire 52 is bent. A sorting device in a threshing machine, characterized in that the fins 13 are tilted by the pulling force of the operation wire 52 both when the fins 13 are opened and when the fins 13 are opened and closed by being connected to a wheel body 55 that rotates forward and backward.