JP2576702Y2 - Threshing equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing apparatus mounted on a self-removing type combine, and in particular, a dust outlet is provided at the lower end of a handling chamber, and the dust sending port is located on the rotating side of the handling cylinder. And a threshing device provided with a receiving net guide.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 5, a net receiving guide 26 is formed of a plate material having a plurality of processed object drop holes 26 formed therein, and a net receiving guide front edge 26a facing a dust outlet 22.
Was formed in a state parallel to the threshing grain culm transport direction X by the feed chain, that is, orthogonal to the rotation direction Y of the handling drum.

[0003]

However, in the vicinity of the dust outlet 22, especially at the point where the grain culm is transferred from the feed chain to the inclined straw discharging chain, the grain stalk clamping force tends to weaken. The grain culm (discharge straw) conveyed here is easily pulled into the handling room by the rotation of the handling cylinder. When the pulled grain culm is caught on the leading edge 26a of the receiving net guide 26, the leading edge 26a is handled. Because it is in a state perpendicular to the body rotation direction, it is difficult to come off and it is easy to accumulate, and there is a possibility that threshing may not be possible due to clogging of the accumulated stalks. Especially when harvesting after the rain or in the early morning when morning dew remains, threshing work with a lot of moisture attached to the grain stalk, so-called wet threshing, catches on the front edge of the receiving net guide. The grain culm becomes more difficult to detach, and the trouble due to the clogging is more likely to occur. An object of the present invention is to make it possible to sufficiently prevent clogging of cereal culm in a dust outlet.

[0004]

A characteristic configuration of the present invention is that a dust port is provided at a lower end of a handling room equipped with a handling drum for threshing a grain stalk held and transported by a feed chain in a grain stalk transport direction. In the threshing device in which the receiving net guide is provided on the lower side in the handling cylinder rotation direction of the dust outlet, the conveying grain culm from the feed chain is inherited, and the rear side in the conveying direction moves away from the feed chain in a plan view. Along with a waste straw transport chain for transporting diagonally rearward, the front edge of the receiving net guide facing the dust outlet is arranged along the waste transport direction by the waste straw transport chain in plan view, and the feed chain The point is that the lower the threshing grain stalk transport direction, the lower the slanted grain culm transport direction in the rotation direction of the handling drum.

[0005]

[Function] In other words, even if grain stalks pulled out from the feed chain or the waste straw transporting chain, or straw chips generated in the handling room during threshing are caught on the front edge of the receiving net guide at the dust outlet, The leading edge of the feed chain is inclined so that it is located on the lower side in the rotation direction of the handling cylinder as the feed chain is on the lower side in the grain conveying direction, and the inclination is along the transport direction of the waste straw transport chain. Due to the rotating force of the trunk and the dragging and transporting action of the grain culm (discharge straw) that is inclined and transported by the waste straw transport chain, it is possible to remove the grain stalk caught on the front edge of the receiving net guide by sliding along the edge. Thus, it is possible to sufficiently prevent an inconvenient situation in which threshing cannot be performed due to clogging of the stalks that have caught on the receiving net guide.

[0006]

As a result, it has become possible to provide a threshing apparatus which is more excellent in threshing performance without the possibility that threshing is impossible due to clogging of the grain stalk in the dust outlet.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a cutting unit 2 is provided at a front portion of a traveling vehicle body equipped with a crawler type traveling device 1 so as to be vertically movable by swinging around a support shaft 4 by a hydraulic cylinder 3. The section 2 is provided with a planted grain stalk raising device 5, a cutting blade 6, and a transport device 8 for feeding the harvested grain stalk to the threshing apparatus 7 in a sideways posture, and the threshing apparatus 7 includes a grain stalk from the cutting section 2. And a feed chain 9 for feeding the grain culm after the threshing (discharged straw) to the grain culm tip side while conveying the stalks rearward into the threshing device 7, and a threshing device. After threshing and sorting at 7, 1
A hopper 11 for bagging for collecting a product (grain) is arranged on the side of the threshing device 7 and a boarding operation unit 12 is arranged in front of the hopper 11 to constitute a self-removing type combine. . The threshing device 7 is configured as shown in FIGS. That is, the handling drum 14 is provided in the handling chamber 13 so as to be rotatable around a horizontal axis in the longitudinal direction of the machine body, and the dust outlet 22 is provided at a rear end of the receiving net 15 disposed below the handling chamber 13 in a certain circumferential direction. In addition, a sheet metal receiving guide 16 having a plurality of processed material discharge ports 23 is disposed on the dust cylinder port 22 on the handling cylinder rotation side (grain culm tip side), and is conveyed by the feed chain 9. The inlet side crocodile mouth 17 for supplying the threshed culms to the handling room 13 is connected to the front side plate 1 facing the starting end side of the handling drum 14.
8, and an outlet-side crocodile port 19 for discharging threshed culms from the handling chamber 13 is formed in a rear plate 20 that supports the rear part of the handling cylinder 14. Front edge 16 facing dust outlet 22 of receiving net guide 16
a is tilted with respect to the threshing kernel transport direction of the feed chain 9 so that the threshing kernel transport direction of the feed chain 9 is closer to the rotation direction of the handling drum 14 toward the threshing kernel transport direction of the feed chain 9, It is folded down so as to be substantially parallel to the transport direction. In other words, the cereal stem pulled out from the feed chain 9 is the leading edge 1 of the receiving net guide 16.
6a, the leading edge 16a is inclined so that the feed chain 9 is positioned closer to the rotation direction of the handling drum 14 as the threshing grain culm is transported. It is possible to prevent the threshing from being impossible due to the clogging of the grain stalks that have slipped along the leading edge 16a and disengaged from the edges 16a by the rotating force and the sweeping force of the transported grain stalks and are caught and accumulated on the receiving net guide 16, thereby preventing the threshing. It is configured in. Further, the holding rod 24 acting on the cereal stem drawn out from the exit side alligator mouth 19 is attached to the rear side plate 20 in a cantilever manner with the free end extending downwardly toward the inner side of the exit side alligator mouth 19 and is also held down. A branch rod 24a is formed to extend from a plurality of locations in the longitudinal direction of the rod 24 in the direction of transporting the threshing grain culm of the feed chain 9 while lowering the grain culm from the feed chain 9 to the waste straw transporting chain 21 by the holding rod 24. The culm is pulled out from the exit-side crocodile mouth 19 by the culm pushing-down action, so that the cereal culm is prevented from being caught on the rear side plate 20 at the back of the exit-side crocodile mouth 19. Further, a winding prevention piece 25 around the shaft is provided on the starting end side of the handling cylinder 14, and the blade edge 25 a at the front end in the rotation direction of the winding prevention piece 25 is moved rearward in the rotation direction toward the front side plate 18 of the handling chamber 13. A long grain culm is wound around the handle shaft by being formed on the positioned inclined edge so that the grain culm is easily detached from the winding prevention piece 25 and the grain culm that does not come off is cut off. Attachment is prevented.

[0008] In the claims of the utility model registration, reference numerals are written for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine.

FIG. 2 is a cross-sectional plan view showing a handling room of the threshing apparatus.

FIG. 3 is a perspective view of a main part.

FIG. 4 is a perspective view of an anti-winding device.

FIG. 5 is a plan view of a main part of a conventional example.

[Explanation of symbols]

 9 Feed chain 13 Handling room 14 Handling cylinder 15 Receiving net 16 Receiving net guide 16a Front edge 22 Dust port

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-57-8711 (JP, A) JP-A-51-102554 (JP, U) JP-A-59-651 (JP, U) JP-A 50-50 88458 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) A01F 12/00-12/60

Claims (1)

(57) [Scope of request for utility model registration] 1. A sheet is conveyed by a feed chain (9).
Handling room (1) equipped with a handling drum (14) for threshing grain stalks
In 3), the dust outlet (2
2) to form the dust outlet (22),
In a threshing device provided with a receiving net guide (16) on the side , the transported grain stem from the feed chain (9) is inherited.
The feed chain in a plan view in the rear side in the conveying direction.
Discharge straw transport chain that transports diagonally backward away from (9)
And a front edge (16a) of the receiving net guide (16) facing the dust outlet (22).
Along the straw conveying direction by (21), the lower the feed chain (9) threshing grain stalk conveying direction, the lower the handling cylinder (1).
4) A threshing device formed in an inclined position located on the lower side in the rotation direction .