CN2074541U - Improved verticle axial-flow thresher - Google Patents

Abstract

The utility model relates to an improved vertical type axial-flow thresher, which is used for the threshing and cleaning of the paddy rice ear, and the wheat ear, and can be used by the matching with the combine harvester. The utility model is mainly composed of an outer shell, a straw outlet soleplate, a machine frame, a main shaft, a lamina screw with holes, a straw discharging fan, a concave plate sieve, an annular partition plate, a wind inlet lamina, an eccentric wheel four connecting rods mechanism, a grain collecting tank and a sieve with holes. The improved vertical type axial-flow thresher simplifies the structure of axial-flow thresher, further increases the effects of the threshing and separating of the axial-flow thresher, and increases the seed cleanness.

Description

Improved verticle axial-flow thresher

The utility model is a kind of improved vertical axial-flow thresher, is specially adapted to spike of rice, wheat head threshing and cleaning usefulness, also can with the supporting use of combine.

Our unit's application Chinese patent utility model axial-flow thresher, number of patent application; 89211275.Find to be necessary to be further improved through using.The cardinal principle that this machine is cleaned is to utilize jet action that the grass outlet high velocity air produced to attract foreign material in the grain-scraping plate upper space, former attraction mode is to utilize the ejecting port of opening on annular baffle, attract the foreign material in above-mentioned space by the inner passage, separation chamber, but structure is complicated; Another kind of improvement project to this machine is still arranged at present, be about to the upper space that perforation on the annular baffle on the former machine directly feeds grain-scraping plate and attract foreign material, though this method energy simplified structure because the aperture is too near from concave grate, remains in the light defect of seed outside ejecting port blows out machine of part.Perforation on annular baffle can not extend arbitrarily at circumferencial direction in addition, causes the foreign material at part angle of spot hole place not inhale clearly fully.

Another improvement project to this machine is to adorn vibratory sieve on frame at present, but because the kind of drive of this scheme is belt pulley configuration eccentric wheel and the bearing that links to each other from the grain-scraping plate reducing gear, and above-mentioned belt pulley is set on the main shaft and at internal body to making the eccentric wheel size bigger than normal, the complete machine axial length increases, thereby increase cost, owing to drive grain-scraping plate and vibrating mechanism simultaneously, cause the phase mutual interference bigger in addition, the complete machine functional reliability is descended from the grain-scraping plate reducing gear; At present opposite with the incline direction of grain-collecting disc in addition to the screen cloth described in the improvement project of this machine, because the effect of gravity has increased the length and the after-treatment amount of screen cloth to making grain be difficult for distinguishing in foreign material.

The purpose of this utility model is to be further improved at the weak point that above-mentioned axial-flow thresher exists, and a kind of improved vertical axial-flow thresher is provided, and has simplified structure, has further improved axial-flow thresher threshing, separating effect, has increased the seed cleannes.

A kind of improved vertical axial-flow thresher takes following scheme to realize: improved vertical axial-flow thresher primary structure is become by shell, grass outlet base plate, frame, main shaft, hole spiral, grass-removing fan, concave grate, annular baffle, side air inlet, feeding air inlet, bottom air inlet mouth, eccentric wheel quadric chain, collecting groove, screen banks with holes.It is continuous with housing by bearings at both ends that it has master rotor, and be supported on the frame, is fixed with several pieces grass-removing fans (cylinder is open type) herein on the top of cylinder, and the middle part is fixed with choke circle (cylinder is enclosed) herein; The bottom of cylinder is open type; The cylinder bottom is wound with hole spiral, and top is wound with blade screw, and configuration one concave grate has feeding mouth on concave grate on the circumference of hole spiral and blade screw periphery, at the bottom of concave grate configuration one cover grain-scraping plate reducing gear.This reducing gear can adopt the belt reducing gear, and grain-scraping plate deceleration back is rotated with respect to main shaft.

On the helical blade working face of thresher drum; have several eyelets; this fan disk is on a face of cylinder; are furnished with several patterns under short in the bottom of cylinder; then be furnished with several pieces on top and go out the blade of grass sheet, be furnished with concave grate, be furnished with a cylindrical housings in the periphery of concave grate in the periphery of hole spiral; have feeding mouth in lower part of frame, the mouth of putting out cereal, then have grass outlet on top.On the grass outlet base plate, have ejecting port, the top of ejecting port communicates with grass outlet, the bottom of ejecting port communicates with the annulus that concave grate and shell constitute through the air draught road, and with feeding air inlet, bottom air inlet mouth, side air inlet, put out cereal mouthful to constitute and clean passage, air-suction channel can extend around the circumference of shell.Periphery at concave grate is fixed with choke plate, and choke plate bends to circular-arc, and is attached on the cylindrical outer surface of concave grate.The eccentric wheel quadric chain is housed on frame, and the eccentric wheel of eccentric wheel quadric chain and big belt pulley are linked to be parts.Fix several protrusions on the hole spiral top working face that is wound with in the cylinder bottom.Protrusion is that damped part can be damping tooth and damping sheet.Frame lower is lifted with collecting groove, sieve with holes.

Below the utility model is described in further detail for the contrast accompanying drawing:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is that A among Fig. 1 is to vertical view.(removing annular baffle)

Fig. 3 be among Fig. 1 A to vertical view.(reservation annular baffle)

Fig. 4 is the end view of vibratory sieve.

Fig. 5 is the end view of hole spiral on the master rotor.

(1) ejecting port among the figure; (2) annular baffle; (3) grass-removing fan; (4) main shaft; (5) concave grate; (6) hole spiral; (7) feeding air inlet; (8) big belt pulley; (9) axle sleeve; (10) eccentric wheel; (11) bearing shell; (12) bottom air inlet mouth; (13) frame; (14) mouth of putting out cereal; (15) shell; (16) side air inlet; (17) choke plate; (18) air-suction channel; (19) grass outlet base plate; (20) grass outlet; (21) connecting rod; (22) sieve with holes; (23) collecting groove; (24) fork; (25) baffle plate; (26) damping tooth; (27) damping sheet; O → grain; X → foreign material; → clean air-flow.

With reference to accompanying drawing 1, on grass outlet base plate (19), have ejecting port (1), the top of ejecting port (1) communicates with grass outlet (19), the bottom of ejecting port (1) communicates with the annulus that concave grate (5) and shell (15) constitute, and with the feeding air inlet (7), bottom air inlet mouth (12), side air inlet (16), mouthful (14) formation of putting out cereal is cleaned passage.Air-suction channel (18) is the part of shell (15), can be as required around extending around the shell (15), but its case surface must with peripheral atmospheric isolation.Ejecting port (1) abuts against by the boundary line of annular baffle (2), and the boundary line of ejecting port (1) is made up of two parts sealing: a part is the part in the periphery sides boundary line of annular baffle (2), another part is the part surrounding edge boundary line (see figure 3) on the corresponding grass outlet base plate (19), in the bottom of ejecting port (1) and on the periphery of concave grate (5), be fixed with choke plate (17), this choke plate (17) bends to circular-arc and is attached on the cylindrical outer surface of concave grate (5), and the upper edge is concordant with the upper edge of concave grate (5).

During the work of this machine because the attached suction effect of jet that the high velocity air of grass outlet (20) produces, make in the annular space between concave grate (5) and the shell (15) foreign material of (hereinafter to be referred as " annular space ") directly be inhaled into grass outlet (20), outside the discharge machine by air-suction channel (18); In the process of this work, outside air is by feeding air inlet (7), bottom air inlet mouth (12), and side air inlet (16), mouthful (14) place of etc.ing of putting out cereal enters respectively in the annular space, makes that the generation air is mobile in whole watering and separation procedure.Because the effect of choke plate (17), the grain that makes concave grate (5) sputter can not enter air-suction channel (18), and by the effect of gravity to falling into grain-collecting disc, can reduce the grain of carrying secretly in the millet straw like this.Because air-suction channel (18) can extend around shell (15) circumference, can make the air draught effect not only be confined to the bottom of grass outlet like this, enlarge the attraction scope like this, improve the seed cleannes, because air current flow is unobstructed, " annular space " is difficult for having foreign material to stop up simultaneously.

Mouth has a small amount of big tangerine bar to be difficult to except that clear owing to put out cereal, and has set up a cover subsidiary body on existing machine: eccentric wheel four connecting rod vibratory sieves.

Following according to accompanying drawing (1), figure (4) its operation principle is described:

The seed that is fallen by put out cereal mouthful (14) enters the low side of sieve with holes (22), because the reciprocally swinging of quadric chain makes seed drop to collecting groove (23) rapidly by outside the low side discharge machine, bigger material on the sieve with holes at the same time (22) can not fall, and because the effect of baffle plate (25) can not be outside low side be discharged machine, at the same time, because the component effect of quadric chain, bigger material is along motion rearwards on the sieve with holes (22), finally by outside the high-end discharge machine of sieve with holes (22).Because the proportion of grain and foreign material is different with coefficient of friction, therefore in the process of quadric chain swing, grain can only be discharged outside the machine at last to the low end motion of collecting groove (23).

On frame (13), the eccentric wheel quadric chain is housed, and by fork in this mechanism (24) and collecting groove (23) hinge joint.Power is delivered on the big belt pulley (8) by belt by the small belt pulley output of the lower end of main shaft (4); Eccentric wheel (10) is unified into parts with big belt pulley, and these parts are contained on the axle that is fixed in frame (13) by bearing, outside eccentric wheel (10) bearing are housed, fixed hub on the bearing shell (9); One end of connecting rod (21) and axle sleeve (9) strand connect, and the other end and fork (24) hinge joint that is fixed on the frame find out that from above-mentioned transmission process when complete machine is worked, collecting groove (23) will produce reciprocally swinging.

Collecting groove (23) is lifted on the frame (13) by the strand company point at fork (24) two ends, collecting groove (23), and sieve with holes (22), baffle plate (25) rigidity fuses, and constitutes vibratory sieve.Baffle plate (25) is fixed on the section of collecting groove end, and sieve with holes (22), and collecting groove (23) is divided into two-layer up and down, and identical with respect to the incline direction of level.The high-end of sieve with holes (22) is impurity outlet, and the low side of collecting groove (23) is the mouth of putting out cereal.

The side direction view that in Fig. 5, has reflected hole spiral (6), fix several damping teeth (26) and damping sheet (27) on the working face of hole spiral (6) top, these are not more than the size that maximum gauge limited of hole spiral (6) to the size between main shaft (4) axis at the external boundary of the protruding part on hole spiral (6) working face top.

Owing to increased these raised member, increased the damping action of hole spiral (6) effectively to crop, increased the time of staying of cereal in machine, strengthen the effect that threshing separates.

Through above-mentioned improvement, the performance of the vertical axial-flow thresher of original application will have further to be improved and raising.

Because ejecting port (1) is communicated by air-suction channel (8) or the direct annulus that constitutes with notch board (5) and shell (15), simplify the loom structure, saved the cost of former separation chamber, and, be difficult for obstruction in the air channel because gas flow is unobstructed; Owing to increase eccentric four connecting rod vibratory sieves, can isolate ejective cleaning and selection institute can not isolated big tangerine bar, further improves the seed cleannes.

Claims (7)

1; a kind of improved vertical axial-flow thresher is by shell (15); grass outlet base plate (19); frame (13); main shaft (4); hole spiral (6); grass-removing fan (3); concave grate (5); annular baffle (2); side air inlet (16); feeding air inlet (7); bottom air inlet mouth (12); the eccentric wheel quadric chain is formed; it is characterized in that: on grass outlet base plate (19), have ejecting port (1); periphery at concave grate (5) is fixed with choke plate (17); on frame (13), the eccentric wheel quadric chain is housed; be added with protrusion (damped part) on the hole spiral, frame lower is lifted with collecting groove (23); sieve with holes (22).

2, vertical axial-flow thresher according to claim 1, the top that it is characterized in that ejecting port (1) communicates with grass outlet (20), the bottom of ejecting port (1) communicates with the annulus that concave grate (5) and shell (15) constitute, and cleans passage with feeding air inlet (7), bottom air inlet mouth (12), side air inlet (16), mouthful (14) formation of putting out cereal; Air-suction channel (18) is the part of shell (15), can extend around the circumference of shell (15).

3, vertical axial-flow thresher according to claim 1 and 2, its ejecting port (1) abuts against by the boundary line of annular baffle (2), and the boundary line of ejecting port (1) is made up of two parts sealing; A part is the part in the periphery sides boundary line of annular baffle (2), and another part is the part surrounding edge boundary line on the corresponding grass outlet base plate (19).

4, vertical axial-flow thresher according to claim 1 and 2; it is characterized in that bottom in ejecting port (1); and be fixed with choke plate (17) on the periphery of concave grate (5), choke plate (17) bends to circular-arc, and is attached on the cylindrical outer surface of concave grate (5).

5, vertical thresher according to claim 1 is characterized in that: the eccentric wheel (10) of eccentric wheel four quadric chains is linked to be parts with big belt pulley (3), and these parts are contained on the axle that is fixed in frame (13) by bearing; The outer bearing, fixed hub on the shell of bearing (9) of being equipped with of eccentric wheel (10); One end of connecting rod (21) and axle sleeve (9) hinge joint, the other end of connecting rod (21) and fork (24) hinge joint that is fixed on the frame.

6, vertical axial-flow thresher according to claim 1 is characterized in that: collecting groove (23) is lifted on the frame (13) by the strand company point at fork (24) two ends, and collecting groove (23), sieve with holes (22), baffle plate (25) rigidity fuse; Collecting groove (23), sieve with holes (22) are identical with respect to the horizontal tilt direction, and the high-end of sieve with holes (22) is impurity outlet, and the low side of collecting groove is the mouth of putting out cereal.

7, vertical axial-flow thresher according to claim 1 is characterized in that hole spiral (6) working face top is equipped with protrusion (damped part), can be damping tooth (26) and damping sheet (27).

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