JPH06121613A - Threshing cutter fixture - Google Patents

Abstract

PURPOSE:To facilitate attachment and detachment of a threshing net and a cutter frame of a thresher. CONSTITUTION:In this threshing cutter fixture, a cutter frame 7 equipped with a cutter blade 6 for cutting straws moving round in a threshing chamber 2 is detachably attached between a front frame 4 and a rear frame 5 bearing the threshing shaft 3 of a threshing cylinder 1 on the back side of the threshing chamber 2 with the built-in threshing cylinder 1. This cutter frame 7 is engaged through a pin 10 with the net frame 9 of a threshing net 8 thereunder and fitting of the frame is carried out by closing an upper threshing cover 11 and pressing the frame.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for attaching a cutting blade for cutting straw that is rotated by the rotation of a handling cylinder in a threshing chamber of a threshing device, and can be used for a threshing device such as a combine harvester or a harvester.

[0002]

2. Description of the Related Art In a threshing device in which a handling cylinder is rotated to perform threshing, a threshing net, a cutting blade, etc. are arranged along a rotating peripheral portion of the handling cylinder. In order to attach and detach the threshing net, fixing this cutting blade to the machine body is likely to be an obstacle, and it takes time and effort for the attachment and detachment.

[0003]

According to the present invention, between the front frame 4 and the rear frame 5 which support the handling barrel shaft 3 of the handling barrel 1, on the back side of the threshing chamber 2 which houses the handling barrel 1. , A cutting blade frame 7 having a cutting blade 6 for cutting the straw which goes around the threshing chamber 2 is detachably provided, and the cutting blade frame 7 is provided between the mesh frame 9 of the lower threshing net 8 and A threshing cutting blade mounting device is characterized in that the threshing cutting blade mounting device is characterized in that it is engaged with the pin 10 and pressed by the closing of the upper threshing cover 11.

[0004]

[Operation and Effect of the Invention] With the threshing cover 11 open upward, the net frame 9 of the threshing net 8 is inserted, the cutting blade frame 7 is overlapped from the upper side, and the cutting blade frame 7 and the net frame 9 are combined. The pins 10 are fitted to each other for positioning, and the front end portion of the cutting blade frame 7 is attached to the front frame 4 side, and the rear end portion is attached to the rear frame 5 side. When the threshing cover 11 is closed from this upper side,
The cutting blade frame 7 is pressed by the threshing cover 11 to prevent it from floating upward, and the net frame 9 of the threshing net 8 is also fixed.

As described above, the attachment / detachment of the cutting blade frame 7 also serves as a retainer for the net frame 9 of the threshing net 8. Therefore, the structure is simple and the net frame 9 of the threshing net 8 can be easily attached / detached. Moreover, since the cutting blade frame 7 is prevented from floating together with the threshing net 8 in the closed posture of the threshing cover 11 from the upper side, the mounting structure can be easily detachable.

[0006]

[Examples] The threshing frame 12 is a box-shaped, and a threshing chamber 2 is formed in the upper part of the threshing chamber 1 for rotating the handling drum 1 that rotates around the shank 3, and the threshing portion of the lower peripheral part of the threshing chamber 2 is formed on the lower side. A sorting chamber 15 is formed, which is composed of a swinging sorting shelf 14 for sorting the rice into straw waste and the like while swinging and transferring the grain which has leaked from the net 8 or discharged from the rear discharge port 13. The threshing frame 12 includes a front frame 4 and a rear frame 5 that support the front and rear ends of the handling barrel shaft 3.
On the upper side of the above, it projects in a cantilever form from the back side to the front side, and the grain culm supply port 33 is formed under each front frame 4, and the discharge port 13 is formed under the rear frame 5. 34 is Kara Minoh.

On the upper side of the threshing chamber 2, there is provided a threshing cover 11 that opens and closes around a hinge 16 on the back side, and on the front side, a clamping rod 17 is attached outside the threshing cover 11 along the front-rear direction. , The feed chain 18 facing below
Is provided. These feed chains 18 and pinching rods 17
While transferring the grain culms to be sandwiched between
It is supplied from 5 to the threshing chamber 2 and transferred, and threshing is performed by the rotation of the handling cylinder 1.

The threshing net 8 is divided into a lower net 8A and an inner net 8B, both formed into a cylindrical curved surface along the rotating outer peripheral portion of the handling cylinder 1, and a net frame 9 is provided on the outer peripheral portion. The lower net 8A is configured so that the lower net 8A can be guided in and out from the grain culm transfer port 19 side provided with the feed chain 18 to the net frame rail 20 configured along the inside of the threshing frame 12 front and rear wall frames, and the lower net 8A is attached In this state, the net frame 9 and the net frame rail 20
The lower rod 8A can be fixed by inserting the connecting rod 21 parallel to the handling barrel shaft 3 between and. Reference numeral 22 is a guide plate that opens and closes the lower portion of the grain culm transfer port 19 when the lower net 8A is attached and detached.

The mesh rail 20 on the front side is used for the threshing frame 1.
2 is formed on the guide plate 90 attached to the lower side of the supply port 33 on the front side, and the rear net-frame rail 20 is formed on the partition frame portion 91 in the threshing chamber 2 that separates the discharge port 13 from the rear frame 5. Has been done. Further, in the form in which the net frame 9 of the threshing net 8 extends to the vicinity of the rear frame 5 similarly to the handling cylinder 1, the net frame rail 20 is formed along the rear wall plate 92 located below the discharge port 13. You can do it. Therefore, the rear end side of the cutting blade frame 7 may be attached to the rear frame 5.

The back side 8B has almost the same form as the lower net 8A, but the attachment / detachment is performed with the upper threshing cover 11 open and guided along the mesh frame rail 20. The lower part of the net frame 9 of the inner net 8B is fixed to the net frame rail 20 by the connecting rod 21 like the lower net 8A, and the abutting portion of both the inner net 8A and the lower net 8B is 9 Pin 23
Is engaged with the other pin hole to be connected.

At the upper end of the inner net 8B, the cutting blade frame 7 to be attached is interposed between the front frame 4 and the rear frame 5. Inside the front frame 4 and the rear frame 5, the handle shaft 3
Bracket 25 which is integrally configured with a connecting rod 24 parallel to
Are detachably attached with bolts 26. This connecting rod 24
Has a pin 10 that engages with a pin hole 27 formed in the net frame 9 of the inner net 8B, and the cutting blade frame 7 has the mounting rod 2
4 and the bracket 25, etc. The back net 8B of the threshing net 8 is attached and detached with the bracket 25 removed together with the cutting blade frame 7.

The cutting blade frame 7 has a generally concave cross-sectional shape which can be fitted from the upper side of the connecting rod 24, and the pin 1
0 has a pin hole 28 engaged with the upper end side thereof, and the cutting blades 6 are arranged at appropriate intervals on the handling cylinder 1 side, and the pin provided on the bracket is provided on the side opposite to the cutting blade 6 side. A hook 30 that can be engaged with 29 is provided rotatably around a hook shaft 31. A lever 32 is integrally provided on the hook 30,
The cutting blade frame 7 and the pin 29 of the hook lever 32
When the threshing cover 11 is closed in the locking position with respect to the threshing cover 11, the holding plate 34 formed inside the threshing cover 11 presses the upper surfaces of the threshing cover 11 to prevent the cutting blade frame 7 from floating.

When the cutting blade frame 7 is removed, the threshing cover 11 is opened upward and the lever 32 is pulled upward, so that the hook 30 is disengaged from the pin 29.
And can be detached from the connecting rod 24. A connecting rod 36 having a cutting blade 35 is attached between the ends of the grain culm transfer ports 19 of the front frame 4 and the rear frame 5. Brackets 39 having downwardly projecting pins 37 and 38 are integrally provided at the front and rear ends of the connecting rod 36, and the upper and lower connecting pins 37 and 38 of the bracket 39 are parallel to each other and are displaced forward and backward. There is a bracket 40 fixed inside the front frame 4 and the rear frame 5.
The upper and lower sockets 41, 42 are fitted from above to connect between the front frame 4 and the rear frame 5.

A rotating pin 43 in a direction intersecting with the pin 38 is pivotally supported on the bracket 39 by a rotating arm 44, and the bracket 39 is attached to the sockets 41 and 42 of the bracket 40. By rotating 44, the rotating pin 43 at the tip is fitted into the socket 45 formed in this bracket 39, and the connecting rod 3 of the cutting blade 35 is connected.
Attach and fix 6.

As shown in FIGS. 7 and 8, the bracket 39 has a single connecting pin 37, and the arm 44 of the rotating pin 43 is always locked to the socket 45 side by a spring 48. I have to put pressure on. 9 to 12 show an embodiment of another part, in which a front frame 4 and a rear frame 5 on which the handling cylinder 1 is mounted are provided.
Are connected by a connecting frame 52, connecting rods 21, 36, etc. to form an integrated structure.
By rotating the rear barrel 5 side toward the front side, the barrel 1 can be moved from the threshing chamber 2 to the outside. Reference numeral 47 denotes a locking tool, which is provided between the rear frame 5 and the rear frame of the threshing frame 12 to move the handling cylinder 1 to the threshing chamber 2
It is to be fixed at the inside position. The cutting edge 35 is attached across the front frame 4 and the rear frame 5.

Further, the feed chain 18 is provided with a support frame 49 integrated with the threshing frame 12 at the front, and the front end of the chain frame 50 of the feed chain 18 is opened and closed to the front side of the support frame 49 to open and close to the front side. Freely support, and hook the rear end hook 51 to the pin 53 on the rear side of the threshing frame 12,
The root portion of the grain culm is clamped and transferred between the feed chain 18 and the upper clamping rod 17.

Reference numeral 54 is a processing cylinder, 55 is a culm device, and 56 is a culm cutter. 57 is the first fried machine, 58 is the second fried machine, 59 is a Glen tank, 60 is this Glen tank 59
It is a take-out auger that takes out the storage paddy of. 61 is a threshing room 2
An auger receiver attached to the threshing frame 12 on the front side of the above supports the storage position of the front end of the take-out auger 60. The auger receiver 61 can be detachably attached to the front wall plate 69 made of casting, which is attached to the rear side of the threshing frame 12, with a bolt 62. The front frame 4 is rotatably provided on the front wall plate 69 by a shaft 46. Reference numeral 63 is a transmission belt that axially transmits the counter pulley 65 from the input pulley 64, and the counter pulley 65, the handling drum pulley 66 of the handling barrel shaft 3, and the processing drum 54.
The shaft 68 is transmitted by being stretched over the pulley 68 and the like. 9
Reference numeral 3 is a straw scraper, 94 is a dust chamber, and 95 is a suction dust collector.

In FIGS. 13 and 14, on the inner side of the threshing frame 12, a vertical frame 70 composed of a pair of upper and lower square pipe members for connecting a front wall plate 69 and a rear wall plate 72 made of casting,
71 is provided to increase the rigidity of the threshing frame 12. Further, a vertical frame 73 made of square pipe material is connected between the front frame 4 and the rear frame 5 on which the handling body shaft 3 is mounted, and the front frame 4 and the rear frame 5 are connected. It is designed for rigidity. Further, a similar vertical frame 74 is provided even between the rear end portions of the front frame 4 and the rear frame 5, so that the handling cylinder 1 and the like can be deployed outside around the opening / closing shaft 46.

15 and 16 show the Glen tank 59.
In a configuration in which the storage paddy is taken out by the take-out auger 60, the Glen tank 59 can be pivoted to the outside of the chassis 79 around the upper and lower hinges 77, 78 near the take-out auger 60 to open a large distance from the thresher. The configuration is used. A transfer gutter 80 provided at the bottom of the Glen tank 59 along the front-rear direction is mounted with a spiral shaft 75 for transmission rotation, and a rear end of the spiral shaft 75 has a drive pin 81. A conical guide body 82 is provided in front of the transfer direction of 81. Further, the connecting cylinder 83, which is opposed to the outer periphery of the guide body 82 and is connected to the transfer gutter 80, forms a conical guide surface having a rear end having an enlarged diameter.

The take-out auger 60 is attached to the rear of the transfer gutter 80, and the front-rear direction shaft 84 and the up-down direction shaft 85 are meshed with a lower transfer case 86 by a bevel gear.
A spiral shaft cylinder 76 having a helix larger than the spiral diameter of the spiral shaft 75 is connected to the front end of the shaft 84 in the front-rear direction, and the front side of the spiral shaft cylinder 76 is closer to the Glen tank 59 that opens and closes. The rear end portion of the spiral shaft 75 is fitted and is rotated by being engaged with the drive pin 81. The front end edge of the transfer case 86 and the rear end edge of the connecting cylinder 83 can be connected and separated by rotating the Glen tank 59 around the hinges 77 and 78. A vertical auger case 87 is rotatably connected to the rear portion of the transfer case 86, and the lower end of the spiral shaft in the auger case 87 is connected to the vertical shaft 85.

By drivingly driving the spiral shaft 75, the spiral shaft cylinder 76 engaged with the drive pin 81 is transmitted, and the spiral shaft in the auger case 87 is transmission-rotated via the shafts 84 and 85. As a result, the paddy in the Glen tank 59 is taken out and transferred from the transfer gutter 80 to the auger case 87 via the connecting cylinder 83, the transfer case 86 and the like. Reference numeral 88 is a support frame for rotatably supporting the auger case 87, and 89 is a gear integrated with the auger case 87, which is driven by engagement of a pinion or the like.

[Brief description of drawings]

FIG. 1 is an enlarged front view of a cutting edge portion.

FIG. 2 is a partially exploded perspective view of a threshing device.

FIG. 3 is a side view thereof.

FIG. 4 is a front view of a threshing unit.

FIG. 5 is a front view of a cutting edge portion.

FIG. 6 is a perspective view thereof.

FIG. 7 is a front view showing an embodiment of another part thereof.

FIG. 8 is a plan view thereof.

FIG. 9 is a plan view showing a developed state of the threshing device.

FIG. 10 is an exploded perspective view of a part thereof.

FIG. 11 is a plan view of the handling barrel.

FIG. 12 is a front view of the threshing device section.

FIG. 13 is a front view of a threshing device section showing another embodiment.

FIG. 14 is a plan view thereof.

FIG. 15 is a side view of a connecting portion between the Glen tank and the extraction auger.

FIG. 16 is a side view of the appearance.

[Explanation of symbols]

 1 Handling Cylinder 2 Threshing Chamber 3 Handling Cylinder Shaft 4 Front Frame 5 Rear Frame 6 Cutting Blade 7 Cutting Blade Frame 8 Threshing Net 9 Net Frame 10 Pin 11 Threshing Cover

Claims (1)

[Claims] 1. Inside the threshing chamber 2 between the front frame 4 and the rear frame 5 bearing the sling shaft 3 of the sling barrel 1 on the inner side of the threshing chamber 2 containing the sling barrel 1. Cutting blade 6 for cutting straw
A cutting blade frame 7 having a blade is detachably provided, and the cutting blade frame 7 is provided with a pin 10 between the cutting blade frame 7 and the net frame 9 of the lower threshing net 8.
A threshing cutting blade mounting device, which is engaged and is pressed and mounted by closing the upper threshing cover 11.