JPH06245631A - Threshing apparatus - Google Patents

Abstract

PURPOSE:To facilitate the maintenance of a threshing apparatus. CONSTITUTION:The threshing apparatus is composed of a threshing cylinder 19 having a spiral blade 18 on the outer circumference and constructed of an impeller part 20 increasing its diameter from the receiving end toward the delivery end and a subsequent cylindrical part 21 having uniform diameter, a threshing chamber 17 formed between the threshing cylinder 19 and a threshing mesh 28 coaxially surrounding the outer circumference of the threshing cylinder 19 interposing a prescribed gap between the cylinder and the mesh 28 and a culm-feeding port 64 formed at the receiving end part of the threshing chamber 17. The upper cover 31 of the frame 15 containing the threshing chamber 17 is pivoted in a state freely openable to the right and left. The upper threshing mesh 36 to cover the part above the threshing cylinder 19 among the threshing mesh 28 is separated from the other mesh part and fixed to the side of the upper cover 31. The upper threshing cylinder 36 is opened by opening the upper cover 31 to open the threshing chamber 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing device.

[0002]

2. Description of the Related Art Conventionally known Japanese Utility Model Laid-Open No. 63-119331 or Japanese Utility Model Laid-Open No. 3-22333 or Japanese Utility Model Laid-Open No. 3
In JP-A-129030, for the purpose of maintenance, an upper cover of a frame for accommodating a threshing chamber is pivotally attached to the left and right, and an upper handling net of the handling net which surrounds the upper part of the handling barrel is also separated from other parts. The structure that can be opened is described.

[0003]

The above-mentioned known example has a problem in that the upper cover of the frame and the upper net are opened separately. Since the upper cover and the upper handling net are opened separately, the opening operation requires double labor, and the upper handling net that is opened later cannot be opened sufficiently as shown in the known example.

[0004]

SUMMARY OF THE INVENTION The present invention facilitates maintenance,
It improves the overall threshing performance and efficiency.

[0005]

Therefore, according to the present invention, the impeller portion 20 has a larger diameter on the starting end side toward the small diameter end side.
And the impeller portion 20 and a column portion 21 having the same diameter from beginning to end and provided with a spiral blade 18 on the outer peripheral surface thereof, and the outer periphery of the handling cylinder 19 is made concentric with the handling net 28 with a predetermined gap. The threshing chamber 17 is surrounded by the threshing chamber 17 formed between the handling drum 19 and the handling net 28, and the grain culm input port 64 formed at the starting end of the threshing chamber 17, and the threshing chamber 17 is housed. The upper cover 31 of the frame 15 is pivotally mounted so that it can be opened and closed in the left-right direction, and the upper net 36 that surrounds the upper part of the net 19 of the net 28 is separated from the other parts to separate the upper cover 3 from the other parts.
This is a threshing device which is fixed to the first side, and when the upper cover 31 is opened, the upper handling net 36 is also opened to open the threshing chamber 17.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. 1 is a combine machine frame, 2 is a traveling device provided below the machine frame 1, 3 is a threshing device provided above the machine frame 1, and 4 is a threshing device. It is a reaper provided in front of the machine body frame 1. The cutting unit 4 includes a bottom plate 5, left and right side plates 6 and 6, and a rear plate 7.
A horizontal auger 9 is axially mounted in an auger frame 8 consisting of, and a cutting blade 10 is provided on the front edge of the bottom plate 5,
The take-up reel 12 having the reel tines 11 is provided above the structure. Reference numeral 13 denotes a pair of left and right mounting arms for the take-in reel 12, the base of which is rotatably mounted on the auger frame 8. Reference numeral 14 is a vertical cylinder for rotating the mounting arm 13 to adjust the height of the take-in reel 12.

Reference numeral 16 denotes a transfer device having the auger frame 8 attached to the tip thereof. The base of the transfer device 16 is rotatably attached to the machine side, and the base of the transfer device 16 is placed in the threshing chamber 17 of the threshing device 3. To face. The threshing device 3 is a so-called whole grain cullet feeding type that supplies the harvested grain culms to the threshing chamber 17, and in the threshing chamber 17, a screw type handling cylinder 19 having a spiral blade 18 on the outer circumference is axially mounted. The handling cylinder 19 has an impeller portion 20 having a small diameter on the starting end side and a larger diameter on the terminal end side at the starting end portion, and a columnar portion 21 having the same diameter from beginning to end is formed following the impeller portion 20. Then, the spiral blade 18 is provided on the outer circumference of the impeller portion 20 and the columnar portion 21. The handling barrel shaft 22 is projected at the starting end portion and the terminating end portion of the handling barrel 19, and the starting end portion of the handling barrel shaft 22 is axially mounted on a front side mounting plate 24 which can be detachably attached to the front plate 23 of the threshing device 3. The rear end of the barrel shaft 22 is mounted on a rear mounting plate 26 that can be detachably mounted on a support plate 25 provided in the threshing device 3, and the handling cylinder 19 can be detached from the threshing chamber 17.

The handling cylinder 19 has a cylindrical portion 2 formed by an enclosing plate portion 27 formed by a non-perforated plate of the impeller portion 20 which will be described later.
The threshing chamber 17 is a space surrounded by the handling nets 28 at the same predetermined intervals all around the circumference of 1 and surrounded by the handling drums 19. The left and right sides of the threshing chamber 17 are surrounded by the right side plate 29 and the left side plate 30 of the frame 15, and the upper side of the threshing chamber 17 is surrounded by the upper cover 31.
The right side edge of the upper cover 31 is rotatably attached to the right side plate 29 side. A wind selecting chamber 32 is formed below the threshing chamber 17, and an oscillating sorting shelf 33 and the like are provided in the wind selecting chamber 32.

Therefore, the handling net 28 has the handling barrel 19
A lower handling net 35 surrounding the lower side of the upper cover 31 and detachably fixed to the machine body, and an upper handling net 36 surrounding the upper part of the handling barrel 19 and attached to the lower surface of the upper cover 31 in the circumferential direction. It can be divided into. The upper net 36 is formed in an arc shape, and an arc-shaped upper net frame 37 concentric with the upper net 36 is provided at the front and rear edges thereof, and the lower surface of the upper cover 31 corresponding to the upper net frame 37 is provided on the lower surface. An upper partition plate 38 is provided and fixed to the upper partition plate 38 with bolts 39. The upper partition plate 38 is formed of a substantially vertical flat plate in the left-right direction, and the upper partition plate 38 is provided with an upper net guide 40 which has an arc shape concentric with the upper net 36 and projects horizontally. The upper net frame 37 is pressed against the upper net guide 40 to fix the upper net frame 37 and the upper partition plate 38 with bolts 39. Therefore, the upper handling net 36 is fixed to the upper cover 31 and rotates upward together with the upper cover 31 to open the upper surface of the threshing chamber 17.

Therefore, the lower handling net 35 is divided into two parts in the circumferential direction (diameter direction) to form a lower left handling net 42 and a lower right handling net 43 in the machine traveling direction. The lower left and right side nets 42, 43 are formed in an arc shape, and arc-shaped lower net frames 44, 45 are attached to the front and rear edges thereof to form the lower net frames 44, 43.
45 is slidably mounted on a guide rail 47 provided on a lower vertical partition plate 46 provided in a horizontal direction between the front plate 23 and the support plate 25. The lower partition plate 46 is the right side plate 29.
And the left side plate 30, the guide rail 47 is provided along the circular upper edge 48 of the lower partition plate 46.

The guide rail 47 has its left end 49 aligned with the end of the lower left handling net 42.
The right end (back end) 50 of 7 is an end 51 of the lower right handling net 43.
Form shorter than. That is, although the handling net 28 is formed in three parts, since the opening width t of the lower left handling net 42 and the lower right handling net 43 is narrower than the handling barrel diameter width L of the handling barrel 19, the handling barrel 19 is
I can't get it out. Therefore, the right end 50 of the guide rail 47 is formed shorter than the end 51 of the lower right handling net 43, and the opening T of the left end 49 and the right end 50 of the guide rail 47 is formed.
Is formed to have a width larger than the handling cylinder diameter width L, the upper cover 31 is moved upward, the lower right handling net 43 is pulled out, and then the handling cylinder 19 is removed.

In the embodiment, the upper handling net 36 and the lower left handling net 42, 43 of the lower handling net 35 are formed separately in the axial direction, so that the upper handling net 3 is divided.
6, the upper net frame 37 and the lower net frames 44 and 45 are attached to the front and rear edges of the lower left net 42 and the lower right net 43, respectively, and the upper net frame 37 and the lower net frames 44 and 45, respectively. A plurality of upper partition plates 38 and lower partition plates 46 are arranged corresponding to the above, and upper mesh guides 40 and guide rails 47 are provided on each of the upper partition plates 38 and lower partition plates 46.

Reference numeral 53 is a mesh retainer provided on the lower surface of the upper cover 31, and as shown in FIG. 11, the mesh retainers 53 are provided at a predetermined distance in the front and rear, and a space 54 is formed therebetween.
That is, since the outer circumference of the handling cylinder 19 is surrounded by the handling net 28 over the entire circumference, the handling net 28 above the handling barrel shaft 22 of the handling cylinder 19, the right side plate 29, the left side plate 30, and the upper part. The grain removing chamber 55 is formed between the cover 31 and the grain removing chamber 55, and the grain removing from the grain removing chamber 55 enters the air selection chamber 32 through the space 54.

15 to 18, the right side portion of the upper handling net 36 is attached to the upper partition plate 38 of the upper cover 31 by a horizontal shaft 56.
In this embodiment, the upper end of the upper net 31 is rotatably attached by a free end (left end) of the lower left net 42, and the left net provided on the upper cover 31 from above. It is pressed and locked by the pressing body 53. Although illustration is omitted, the free end side of the upper handling net 36 is provided with the upper cover 31.
Is locked by a lock device having an arbitrary structure, and after the upper cover 31 is moved upward, the upper cover 31 is unlocked to release the upper handling net 36.
Is lowered to open a space between the lower surface of the upper cover 31 and the upper surface of the upper handling net 36.

Although the outer periphery of the impeller portion 20 of the handling cylinder 19 is surrounded by the surrounding plate portion 27 formed of a non-perforated plate, the upper portion of the surrounding plate portion 27 is the handling net 28.
Is formed in a cylindrical portion 60 having substantially the same diameter so as to extend, and a lower portion thereof has an inclined portion 62 that becomes higher toward the end side having the same width as the base opening portion 61 of the transfer device 16, and the left and right of the inclined portion 62. The raising wall 63 provided on the side portion forms the grain culm input port 64 having a square shape in a front view, but the upper portion of the cylindrical portion 60 has a substantially horizontal upper flat plate portion 65 and an upper side plate 66 to form the grain. A clogging space 67 narrower than the culm inlet 64 is formed.

That is, the clogging phenomenon is caused by the cylindrical portion 60 and the handling cylinder 1.
9 is narrow, but clogging does not occur here due to the transfer action of the spiral blade 18, but in the grain culm input port 64 wider than the distance between the cylindrical portion 60 and the handling cylinder 19, Since the portion of the standing wall 63 of the grain culm input port 64 that intersects the rotation direction is not affected by the transfer action of the spiral blade 18 of the handling cylinder 19, clogging easily occurs. Then, in the upper part of the starting end portion of the threshing chamber 17, the handling cylinder 1 such as the standing wall 63 of the grain culm input port 64 is provided.
9 has an upper side plate 66 that intersects with the rotation direction of 9, and if a clogging space 67 narrower than the grain culm input port 64 is formed, the clogging space 67 is smaller than the grain culm input port 64 even if clogging occurs. First In this way, the clogging space 67 is intentionally formed at a position below the upper cover 31 where it can be easily opened, so that if clogging should occur, it can be quickly dealt with.

[0017]

[Operation] Next, the operation will be described. When the machine body is moved forward, when the grain culm in the field is scraped into the auger frame 8 by the scraping reel 12 of the mowing unit 4, the root side of the grain stalk is cut by the cutting blade 10, and the harvested grain culm is augered. 9 is collected at the connecting portion between the auger frame 8 and the transfer device 16,
Is supplied to the threshing chamber 17 of the threshing device 3 by the
Threshing is performed by the handling drum 19 that rotates inside, and the threshing that leaks from the handling net 28 that surrounds the handling barrel 19 enters the air selection chamber 32 provided below the threshing chamber 17 and is wind-selected.

In this case, since the handling net 28 surrounds the entire circumference of the handling barrel 19 in the circumferential direction, the grain removed from the lower part of the handling net 28 enters the wind selection chamber 32 as it is. Handling net 2
The grain removal leaked from the upper portion of 8 passes through the space 54 from the grain removal chamber 55 formed between the right side plate 29, the left side plate 30, and the upper cover 31 and enters the air selection chamber 32 where it is wind-selected. , Threshing performance is improved.

Therefore, the handling net 28 surrounds the lower side of the handling barrel 19 and is detachably fixed to the machine body side.
And an upper handling net 36 that surrounds the upper part of the handling cylinder 19 and is attached to the lower surface of the upper cover 31, which is separable in the circumferential direction. 36 also pivots upward to open the upper surface side of the handling cylinder 19. Therefore, the upper surface of the threshing chamber 17 can be easily opened while the entire circumference of the handling cylinder 19 is surrounded by the handling net 28, and maintenance can be performed easily.

The handling net 28 is formed by dividing the lower handling net 35 fixed to the machine side excluding the upper handling net 36 into a lower left handling net 42 and a lower right handling net 43. 42 and the guide rail 47 of the lower right handling net 43, the left end 49 of the guide rail 47 is matched with the end of the lower left handling net 42, but the right end 50 of the guide rail 47 is the end 51 of the lower right handling net 43. Since it is formed shorter than the above, when the lower right handling net 43 is taken out, the opening T at the left end 49 and the right end 50 of the guide rail 47 is formed.
The width of the handle cylinder 1 can be made larger than the handle cylinder diameter width L.
9 can be removed for easy maintenance.

In this case, the handling net 28 is 180 in the circumferential direction.
If you try to divide it in half, that is, the amount of spring back cannot be predicted by press working and it cannot be processed accurately, but if you divide it into three equal parts, even press working can be manufactured as designed and at low cost, and the guide rail 47 By shortening the length, the handling cylinder 19 can be taken out.

Next, when the handling cylinder 19 is removed, the lower left handling net 4
Since 2 is exposed, it can be pulled out, and maintenance of the heavy handling net 28 becomes easy.

When the maintenance is completed, the lower left handling net 42 is stowed, then the handling cylinder 19 is stowed, then the lower right handling net 43 is stowed, and the upper cover 31 is closed from above. The ends of the upper nets 36 on the lower surface of the upper cover 31 press the ends of the lower left nets 42 and the lower right nets 43,
At the same time, the mesh retainer 53 presses and fixes the lower left handling net 42 and the lower right handling net 43.

In the embodiment shown in FIGS. 15 to 18, the right side portion of the upper handling net 36 is provided with the upper partition plate 38 of the upper cover 31.
Since it is rotatably attached by the horizontal shaft 56, a space between the lower surface of the upper cover 31 and the upper surface of the upper handling net 36 can be opened, and maintenance can be easily performed during this time.

In the embodiment, the handling net 28 is divided into three equal parts, but it is also possible to divide the lower handling net 35 and the upper handling net 36 into two parts with various ratios. Therefore, the number and ratio of division can be arbitrarily implemented.

[0026]

According to the present invention, the spiral blade 18 is provided on the outer peripheral surface of the impeller portion 20 whose starting end side has a larger diameter toward the small diameter end side and a cylindrical portion 21 which continues from the impeller portion 20 and has the same diameter from beginning to end. The barrel 19, the threshing chamber 17 formed between the handling barrel 19 and the handling net 28 by concentrically surrounding the outer circumference of the handling barrel 19 with a handling net 28, and the threshing chamber 17 In the one consisting of the grain culm input port 64 formed at the start end,
Upper cover 3 of frame 15 for accommodating said threshing chamber 17
Reference numeral 1 denotes a shaft that is openable and closable left and right, and an upper handling net 36 that surrounds the upper portion of the handling barrel 19 of the handling net 28 is fixed to the side of the upper cover 31 by being separated from other portions, and thus the upper cover 31. The upper cover 31 of the frame 15 and the upper handling net 36 are provided because the threshing device is configured such that the upper handling net 36 is opened when the door is opened to open the threshing chamber 17.
The and will open together for easy maintenance.

[Brief description of drawings]

FIG. 1 is a side view.

FIG. 2 is a front view.

FIG. 3 is a rear view.

FIG. 4 is a side view.

FIG. 5 is a perspective view.

FIG. 6 is a perspective view.

FIG. 7 is a front view.

FIG. 8 is a perspective view.

FIG. 9 is an explanatory diagram.

FIG. 10 is a perspective view.

FIG. 11 is a transverse plan view.

FIG. 12 is a plan view.

FIG. 13 is a plan view.

FIG. 14 is a side view.

FIG. 15 is a front view.

FIG. 16 is a front view of a main part.

FIG. 17 is a cross-sectional view of a main part.

FIG. 18 is a cross-sectional view of a main part.

FIG. 19 is a front view.

[Explanation of symbols]

1 ... Airframe frame, 2 ... Traveling device, 3 ... Threshing device, 4 ...
Mowing part, 5 ... Bottom plate, 6 ... Left and right side plates, 7 ... Rear plate, 8 ... Auger frame, 9 ... Auger, 10 ... Cutting blade, 11 ... Reel tine, 12 ... Take-up reel, 13 ... Mounting arm, 14 ... Up and down Cylinder, 15 ... Frame, 16 ... Conveying device, 17 ...
Threshing chamber, 18 ... Spiral wing, 19 ... Handling barrel, 20 ... Impeller portion, 21 ... Column portion, 22 ... Handling barrel shaft, 23 ... Front plate, 24 ...
Front mounting plate, 25 ... Supporting plate, 26 ... Rear mounting plate, 27 ...
Surrounding plate portion, 28 ... Handling net, 29 ... Right side plate, 30 ... Left side plate,
31 ... Top cover, 32 ... Wind selection room, 33 ... Swing selection shelf,
35 ... Lower handling net, 36 ... Upper handling net, 37 ... Upper net frame, 3
8 ... Upper partition plate, 39 ... Bolt, 40 ... Upper net guide,
42 ... Lower left handling net, 43 ... Lower right handling net, 44, 45 ... Lower net frame, 46 ... Lower partition plate, 47 ... Guide rail, 48 ...
Upper edge, 49 ... Left end, 50 ... Right end, 51 ... End part, 53 ... Net presser body, 54 ... Space, 55 ... Grain discharging chamber, 56 ... Horizontal axis, 60 ... Cylindrical part, 62 ... Inclined part, 63 ... Standing wall, 64
... grain culm input port, 65 ... upper flat plate portion, 66 ... upper side plate, 6
7 ... Clogged space.

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[Procedure amendment]

[Submission date] March 29, 1993

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 2

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[Fig. 2]

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[Name of item to be corrected] Figure 3

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[Document name to be corrected] Drawing

[Correction target item name] Figure 8

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[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 10

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[Figure 10]

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[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 11

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[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 17

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[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 18

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Claims (1)

[Claims] 1. A handling cylinder 19 having a spiral blade 18 on an outer peripheral surface thereof, which includes an impeller portion 20 having a diameter increasing on the starting end side toward a terminal end having a small diameter and a columnar portion 21 following the impeller portion 20 having the same diameter from beginning to end. And the handling net 2 with a predetermined gap around the outer periphery of the handling cylinder 19.
8 and concentrically surrounds the handling cylinder 19 and the handling net 28.
In the threshing chamber 17 formed between the threshing chamber 17 and the grain culm input port 64 formed at the starting end of the threshing chamber 17, the upper cover 31 of the frame 15 for accommodating the threshing chamber 17 has a shaft that can be opened and closed left and right. Wearing, the handling cylinder 1 of the handling net 28
The upper handling net 36 that surrounds the upper part of 9 is fixed to the upper cover 31 side by separating it from the other parts, and when the upper cover 31 is opened, the upper handling net 36 also opens and the threshing chamber 1
Threshing device that is designed to open 7.