CN205232864U

CN205232864U - Combine cereal clearance system

Info

Publication number: CN205232864U
Application number: CN201520987394.4U
Authority: CN
Inventors: B·D·赖格
Original assignee: AGCO Corp
Current assignee: AGCO Corp
Priority date: 2014-12-04
Filing date: 2015-12-03
Publication date: 2016-05-18
Anticipated expiration: 2025-12-03
Also published as: BR202015028228Y1; BR202015028228U2

Abstract

The utility model provides a combine cereal clearance system, includes: reciprocating type top sieve, a fan for producing the clearance air current, first pipe fitting and second pipe fitting, first pipe fitting is used for the first portion at reciprocating type top sieve below guide clearance air current by the setting, and the second pipe fitting is used for the second portion at the top of reciprocating type top sieve guide clearance air current by the setting, install the alar part in reciprocating type top sieve top, this alar part can pass upward deflection under the capable pressurization air effect of reciprocating type top sieve going upward, and establish the vent in the second pipe fitting, wherein, the upward movement of alar part is used for opening the vent.

Description

Combine Harvester Grain cleaning system

Technical field

The utility model relates to thrashing of united reaper and cleaning system, more specifically, and thisUtility model relates to cleaning air-flow for managing the cereal cleaning system by united reaperSystem.

Background technology

United reaper has for the crops system of thrashing of thrashing to harvesting with for from beatingCrops after paddy remove husk and other residue (material of MOG-except cereal).In one example, rotor and groove cooperation to be so that the crops of harvesting are thrashed, and at cereal andLess residue produces preliminary dividing while being under centrifugal force pushed through the groove with fenceFrom. Large for example stem of residue fragment or bar continue mobile handle backward finally from rotor assemblyDischarge rear end, is processed and be held on ground by chipper or broadcast seeder this its.

In cleaning system, shaking screen assembly is the farming from thrashing by husk together with air streamThing is removed, and husk is cleared up cereal dish by top sieve and screen assembly to vibration under Action of Gravity Field.Cleaning cereal dish guides to discharge auger by the cereal of cleaning again, and this discharge auger is by cereal hoistingTo airborne storage warehouse. The second oscillating plate by be positioned at bottom on screen assembly edge except cerealMaterial guide to different exhaust outlets return with circulation thrash, separation and cleaning plant to be to winThe cereal of not thrashed before going out.

Conventionally with fan produce air-flow carry lighter non-cereal-granules and by it from harvesterRear portion take out of. Known use pipe fitting guides the Part I of cleaning air-flow from top sieve belowAnd the Part II of cleaning air-flow is guided from top sieve top. US8608534 has disclosed like thisA kind of system, its content is incorporated herein by reference.

If air-flow is too fast, if especially the air-flow of top sieve top is too fast, can increase paddyThing loss, because grain can not precipitate before the back edge of top sieve. If air-flow is too low,MOG and cereal can be deposited on top sieve, cause top sieve to subside.

The various loads of cleaning system are meaned and conventionally will select compromise air velocity. SoAnd, in the time that handling capacity is not in common scope, for example, in the time that the output in a part of field is very little,Can there is loss.

Utility model content

The purpose of this utility model is to provide a kind of improved cereal cleaning system, and it is being processedChange crops situation time loss reduce.

According to the utility model, a kind of Combine Harvester Grain cleaning system is provided, comprising:Reciprocating top sieve; For generation of the fan of cleaning air-flow; The first pipe fitting and the second pipe fitting, theOne pipe fitting is arranged for the Part I of guiding cleaning air-flow below reciprocating top sieve, theTwo pipe fittings are arranged for the Part II of guiding cleaning air-flow above reciprocating top sieve;Be arranged on the alar part of reciprocating top sieve top, this alar part can be up through reciprocating clever chaffUnder the forced air effect of sieve, upward deflect; And be located at the ventilating opening in the second pipe fitting, itsIn, the moving upward for opening ventilating opening of alar part.

Preferably, alar part is mechanically connected to ventilating opening by linkage.

Advantageously, the alar part mechanically connecting and ventilating opening provide in few crops situationThe mechanism of lower reduction top sieve top air velocity. Under few crops situation, from top sieveThe air-flow more at a high speed passing through is mechanically opened ventilating opening, thereby reduces top air velocity alsoThereby minimizing Grain Loss.

Preferably, alar part is biased to down position under gravity, and wherein ventilating opening is at alar part placeIn the time of down position, close. Alar part can be in biased downward under himself Action of Gravity Field. OptionalGround, can arrange spring so that larger downward bias pressure to be provided.

Alar part can be mounted to pivotally for the framework around axis of pitch motion. Preferably,Alar part is installed to realize good between air velocity and alar part position pivotally along its leading edgeGood correlation.

In preferred layout, adopted a pair of alar part, this pair of alar part is all connected to ventilating opening.

Preferably, alar part is positioned at the top, rear section of top sieve.

Brief description of the drawings

The further advantage of the utility model by from below reading with reference to accompanying drawing to specific embodimentIllustrate and become obviously, in the accompanying drawings:

Fig. 1 is the principle side view of united reaper, some parts quilts of this united reaperDissect out to show this mechanical feed, thrash, separate and clear up part;

Fig. 2 is the principle front perspective view according to cereal cleaning system of the present utility model;

Fig. 3 is the elevation principle plane of the top sieve of the cereal cleaning system shown in Fig. 2;

The principle side-looking of the cereal cleaning system of Fig. 2 that Fig. 4 illustrates under high-throughput situationFigure;

Fig. 5 is the principle side of the cereal cleaning system of Fig. 2 of illustrating under poor throughput situationView.

Detailed description of the invention

The utility model can have multi-form embodiment. Although accompanying drawing illustrates and illustratesBook has been described some preferred embodiment of the present utility model, should be understood that, this disclosure onlyExemplary.

Do not attempt principle of the present utility model to be limited to disclosed specific embodiment. BelowDescription relate to some direction for example 'fornt', 'back', " left side ", " right side " be from associatingWhen observing, the side of harvester makes.

Show to Fig. 1 principle the related united reaper of a type of the utility model10. Although the harvester 10 of selecting for figure releases object is so-called axial rotation combinings(rotor that the mechanism of thrashing comprises is along machinery axially (for its head and the tail axis) for machineArrange), at present commercial also have thrashing and separating mechanism of many other types, do not attempt byPrinciple of the present utility model is limited to thrashing of any particular type and separating mechanism.

In relevant portion, harvester 10 has feed shell 12, and this feed shell is from suitableThe material that gathers in of grain header and this material via conveyer 14 towards beater 16 toAbove also advance backward, beater rotates along the counter clockwise direction shown in Fig. 1. Beater 16 drivesThe material that plan is gathered in upwards and backward enters and receives in shell 18. Shell 18 comprises threshing machineThe leading section of structure, it is indicated by Reference numeral 20 generally.

In the embodiment shown, the mechanism 20 of thrashing comprises rotor 21, the leading section of this rotor 21Have a series of helical blade 22, it makes material start backward along helical form travel pathMotion. In the time that material moves backward, groove 24 cooperates that with rotor 21 material is thrashedProcess, and under centrifugal action, be pushed through band fence when cereal and less residueGroove produce preliminary separation during to cleaning plant 26. Larger residue fragment for example stem andBar continues motion backward through separating fence 27, and this fence allows cereal radially to move to rotorOutside region, to cleaning plant 26, but do not allow larger residue like this. This residue is finalDischarge from the rear end of rotor assembly, processed and shelve by shredder or broadcast seeder at this residueTo ground. It will be understood by those skilled in the art that and can not depart from the utility model scopeIn situation, use other to thrash and separating mechanism 20 (for example cylinder and groove).

It is downward that the cereal of generally speaking, being thrashed is done the used time at cleaned device 26 and fan 28By machinery. Fan 28 has fan drum 29, and this shell 29 is installed in rotating impeller30, this impeller is configured to produce high velocity air. Light husk particle produces at fan 28Guiding backward airflow function low suspension and discharge from mechanical rear portion. Clean cereal is finalArrive discharge auger 31, it passes to lift, and this lift is upwards sent to clean cerealThe accumulator tank 33 at machinery top place. The tailings being formed by some cereal and other residue particle toReach tailings and return to spiral 32, this tailings return spiral by tailings via unshowned mechanism rise withCirculation is gone back by going paddy, separation and cut-back region so that cereal and this residue are further dividedFrom.

United reaper 10 comprises as the concussion of a part for its cleaning plant 26 and returns to dish34, this concussion return dish by the material receiving from groove 24 and fence 27 generally downwards and toSend frontly. Drop on concussion top sieve 36 from those materials that return to dish 34. Top sieve36 allow cereal downwards by the opening in top sieve 36, and larger particle is by generally upwardsAnd drive backward until drain from the rear end of top sieve 36 and go out from the rear portion of united reaper 10Come on ground.

Under thinner concussion, sieve 38 receptions passed through cereal and the residue of top sieve 36, and holdThe classification feature of row and top sieve 36 roughly the same types. Less grain falls through lower sieve38 and fall on concussion cereal dish 40, cereal is delivered to cleaning cereal spiral by this concussion cereal dishIn 30. Can not advance and leave the discharge end portion of lower sieve 38 through the larger tailings particle of lower sieve 38And drop down onto tailings and return to dish 42, this tailings returns to dish and this material is fed to tailings returns to spiral32. When grain is under gravity through top sieve 36 and lower sieve 38, take away from the air-flow of fan 28Light non-cereal-granules is also taken out of outside mechanical rear portion.

Get back to the detail of airflow function, the shape of fan drum 29 makes under air-flow is divided intoAir-flow X and overdraught Y. Shell 29 comprises lower pipe fitting 50 and upper pipe fitting 52. Lower pipe fitting 50Below top sieve 36, guide downstream X, and upper pipe fitting 52 is in guiding above top sieve 36Air-flow Y. This for example can find out from Fig. 1, Fig. 4 and Fig. 5.

But one skilled in the art will appreciate that do not depart from the utility model scope beforePut, the geometry of pipe fitting can be from the variation shown in accompanying drawing. As Fig. 2, Fig. 4 and Fig. 5Shown upper pipe fitting 52 comprises the upwardly extending sidepiece of a pair of outer end from fan drum 29Divide 52 ', side part 52 ' is by the outlet 52 of crossing the extension of top sieve width " fluidly connect outlet52 " below returning to dish 34, guide backward overdraught Y.

In the wall of upper pipe fitting 52, be provided with a pair of ventilating opening, ventilating opening is covered by movable flap 54Lid, flap is pivotable on transverse bolt 55. Flap can be in closed position (Fig. 4) and open positionPut motion between (Fig. 5).

A pair of alar part (or wing portion or wing) 58 is mounted to pivotally above top sieve 36Framing component moves with the axis of pitch 60 of the leading edge around along alar part 58. Alar part 58 is logicalCross under the abundant gas pressure of air-flow X of top sieve upwards pivotable. Do not having from downstream XAbundant castering action power time, alar part falls into it at the upper/lower positions shown in Fig. 3.

Wing crank 64 is connected to flap 54 by pitman arm 62, thereby flap 54 is carried at alar part 58While liter, open (each alar part 58 has the connecting rod being associated with flap 54). Art technologyPersonnel will know and know, can expect other connecting rod under the prerequisite that does not depart from the utility model scopeMechanism.

Operation

The in the situation that of high crops handling capacity, the underspeed of the air-flow by top sieve 36 withPromote alar part 58. Therefore, ventilating opening flap 54 keeps closing.

If while running into lighter crops and handling capacity decline, upwards by the gas of top sieveStream increases also mentions alar part 58, and then opens ventilating opening 54 and allow under the speed of overdraught YFall. This effect has reduced the Grain Loss at top sieve 36 rear portions.

Should be understood that, mechanical linkage provides negative feedback process, wherein too high gasStream will make air descend, and vice versa. Advantageously, the utility model provides and has not graspedWhen author intervenes, the simple of distribution of air flow adjusted automatically.

It should be emphasized that, above embodiment of the present utility model is only achieved possibilityExample, only for being expressly understood principle of the present utility model. Can not depart from this practicality newlyIn the situation of type spirit and principle, above-described embodiment of the present utility model is carried out many variations and repaiiedChange.

Claims

1. a Combine Harvester Grain cleaning system, is characterized in that described united reaperCereal cleaning system comprises: reciprocating top sieve; For generation of the fan of cleaning air-flow; FirstPipe fitting and the second pipe fitting, the first pipe fitting is arranged for guiding cleaning below reciprocating top sieveThe Part I of air-flow, the second pipe fitting is arranged for above reciprocating top sieve and guides clearlyRegulate the flow of vital energy stream Part II; Be arranged on the alar part of reciprocating top sieve top, this alar part can beUp passing under the forced air effect of reciprocating top sieve upward deflects; And be located at the second pipeVentilating opening in part, wherein, the moving upward for opening ventilating opening of alar part.

2. Combine Harvester Grain cleaning system according to claim 1, its feature existsIn, ventilating opening is connected to alar part by mechanical linkage.

3. Combine Harvester Grain cleaning system according to claim 1 and 2, its feature existsIn, alar part is biased in upper/lower positions under Action of Gravity Field, wherein ventilating opening at alar part in the nextPut when middle and close.

4. Combine Harvester Grain cleaning system according to claim 1 and 2, its feature existsIn, alar part is mounted to framework pivotally to move around axis of pitch.

5. Combine Harvester Grain cleaning system according to claim 4, its feature existsIn, alar part is installed pivotally around the leading edge of alar part.

6. Combine Harvester Grain cleaning system according to claim 1 and 2, its feature existsIn, this Combine Harvester Grain cleaning system also comprises a pair of alar part that is connected to ventilating opening.

7. Combine Harvester Grain cleaning system according to claim 1 and 2, its feature existsIn, alar part is positioned at the top, rear portion of reciprocating top sieve.