CN202759830U - Double drum folding wheat thresher - Google Patents

Abstract

The utility model relates to a grain threshing and cleaning machine in agricultural machinery, in particular to a double-drum folding wheat thresher for crushing, threshing and cleaning wheat straw. The existing wheat thresher has a relatively complicated structure, a large external size and is inconvenient to carry. When the wheat straw is relatively wet, it is easy to wrap around the surface of the drum and prevent the drum from rotating. The utility model includes a frame and a feeding platform, a crushing and threshing bin, a wind selection bin, an agitator conveying mechanism and a double-screen secondary cleaning device arranged on the frame. The feeding platform is arranged on the side of the crushing and threshing bin, a wind selection bin is arranged at the lower part of the crushing and threshing bin, and a turret conveying mechanism is arranged at the lower part of the wind selection bin. The turret conveying mechanism is connected to the double-screen secondary cleaning device, and the double-screen secondary cleaning device is fixed outside the front of the frame. The utility model provides a double-drum folding wheat thresher with a compact structure and low cost. Some parts can be folded for easy carrying. The double-drum grass-chopping blades operate crosswise without the drum straining.

Description

Double drum folding wheat thresher

technical field

The utility model relates to a grain threshing and cleaning machine in agricultural machinery, in particular to a double-drum folding wheat thresher used for crushing, threshing and cleaning wheat straw. the

Background technique

The wheat thresher is a commonly used agricultural machinery with a wide range of applications. At present, the operation process of most wheat threshers is: the wheat straw is manually fed into the drum through the feeding port, and then the high-speed rotating drum crushes the straw and grains through the teeth of the drum, and the crushed materials and grains are sieved and fall freely, blown and separated. The granulation mechanism blows the crushed materials outward, and some grains are blown by the wind onto the vibrating sieve. After passing through the vibrating sieve, they slide into the pushing groove along the slope, and the auger-type pushing mechanism and lifting mechanism transport the grains to the secondary The cleaning device and the secondary cleaning device perform secondary cleaning on the grains to obtain clean grains and pulverized objects. It can be seen that the structure of the machine tool is relatively complicated, the machine is heavy, and the overall size is large, so it is inconvenient to carry. When the wheat straw is wet, it is easy to wrap around the surface of the drum to prevent the drum from rotating. It was hard to move. Some have proposed a double-drum wheat thresher, but each drum operates independently without mutual assistance. The wheat stalks are wet and the surface of the winding drum does not allow the drum to rotate or the crushed threshing bin has more wheat stalks and squeezes the drum. When it is hard to turn, the existing double-drum wheat thresher has no way to solve it, the structure is more complicated, and the manufacturing cost is higher. the

Contents of the invention

The purpose of the utility model is to overcome the shortcomings of the existing threshers, and provide a double-drum folding wheat thresher, which has a compact structure, low cost, and some parts can be folded for easy transportation. Phenomenon. the

The purpose of this utility model is achieved by the following technical solutions:

A double-drum folding wheat threshing machine that can be matched with a tractor includes a frame and a feeding platform arranged on the frame, a crushing and threshing bin, a winnowing bin, an auger conveying mechanism, and a double-sieve secondary cleaning device. The said feeding platform is arranged on the side of the crushing and threshing bin, and the lower part of the crushing and threshing bin is equipped with a winnowing bin, and the lower part of the winnowing bin is equipped with an auger conveying mechanism, and the auger conveying mechanism is connected with the double-sieve secondary cleaning device. The secondary cleaning device is fixed on the frame.

Said feeding platform is fixed on the right side of the frame, and the feeding port of the feeding platform is provided with a telescopic rake conveying roller, and the rear end of the conveying roller shaft is equipped with a feeding wheel. the

The crushing and threshing bin is provided with two left and right wheat threshing and grass-breaking rollers, each grass-breaking roller has multiple rows of grass-cutting knives welded on the surface, the left and right two grass-breaking rollers are parallel to each other, and the left and right two grass-breaking rollers are synchronous, Rotate in the same direction, instead, the left and right two grass-cutting drums run cross-cutting with multiple rows of grass-cutting knives. Therefore, the wheat straw will not be wound on the surface of the drum. The shafts of the left and right two grass-cutting drums are fixed on the frame through bearings. The pulley at the rear end of the grass-cutting roller shaft is respectively connected with the large transmission wheel and the pulley at the rear end of the right grass-cutting roller shaft through the belt, the pulley at the rear end of the right grass-cutting roller shaft is respectively connected with the feeding wheel and the wind wheel through the belt, and the front end of the right grass-cutting roller shaft The belt pulleys are respectively connected with the lifting wheel and the vibrating wheel; there is a cover on the crushing and threshing bin, and the left side of the cover is hinged with the frame. The orange material and wheat grains fall through the sieve onto the left and right sloping plates and slide down. the

Said winnowing chamber is composed of left and right sloping plates, air blower, discharge channel and windshield. The left and right sloping plates are arranged at the lower part of the screen and fixed on the frame; On the frame, the air outlet of the blower is aimed at the discharge channel, and the falling wheat grains and orange materials are blown to the direction of the discharge channel by wind force. The lighter orange materials are blown out of the frame through the discharge channel, and the heavier The heavy wheat grains fall on the auger trough to realize the sorting of wheat grains and orange materials; there is a discharge channel at the lower part of the left sloping plate. The panels are hinged to the frame, and the front and rear panels are hinged to the lower panel. When folding is required, the upper panel is folded down, the front and rear panels are turned backwards at 270°C and folded parallel to the lower panel, and the lower panel and the front and rear panels are folded up together; The plate is fixed near the discharge channel, and the slope of the windshield is adjusted through the screw rod. If wheat grains are found in the discharge channel, the slope of the windshield can be adjusted to block part of the wind force and prevent the wheat grains and oranges from the discharge together. The air is blown out of the frame, and the wheat grains brought out of the straw are controlled by adjusting the slope of the windshield. the

Said auger conveying mechanism is made up of a push auger and a lift auger, and the push auger is a mechanism for transporting the grain falling in the push trough to the lift auger, and the push wheel, auger trough , Auger Composition. The push wheel is fixed on the auger shaft, and the push wheel is connected with the large drive wheel through a belt or chain, wherein the large drive wheel is fixed in front of the frame, and the large drive wheel is connected with the external power, when the push wheel rotates, the auger rotates together , the pushing groove is a semi-circular concave groove, fixed on the frame; the lifting auger is the mechanism that transports the grain transported into the lifting cylinder to the secondary cleaning device of the double screen. The lifting cylinder, the auger , lifting wheel, and discharge cylinder. The lifting cylinder is a cylindrical cylinder fixed on the frame. The auger is installed in the lifting cylinder. The auger and the lifting wheel are connected by gear transmission. The discharge cylinder is the lifting cylinder The hopper at the upper end of the delivery cylinder, the outlet of the discharge cylinder is facing the feed end of the double-sieve secondary cleaning device, and the grain is lifted to the discharge cylinder by the auger and enters the double-sieve secondary cleaning device. the

The so-called double-sieve secondary cleaning device is a device for further cleaning the grains. It is composed of a shaking mechanism and a blowing cleaning mechanism. The shaking mechanism is an integral independent mechanism, which is placed on the track of the blowing cleaning mechanism. On the frame, the shaking mechanism and the blowing cleaning mechanism are connected through the crank linkage mechanism, and the whole machine of the shaking mechanism moves back and forth along the track through the crank linkage mechanism. The shaking mechanism includes a feeding end, a double inclined sieve, a slanting plate, a return inclined plate, a draft plate, and a hopper. The feeding end is set at the upper right end of the shaking mechanism. Directly extending to the draft plate, the lower part of the double inclined sieve is the inclined plate and the return inclined plate, the inclined plate extends from the feed end to the top of the discharge hopper, there is a blowing space between the inclined plate and the discharge hopper, and the return inclined plate extends from the top of the draft plate To the discharge hopper, the top of the discharge plate is hinged with the return inclined plate, folded on the double inclined sieve when it needs to be transported, and the discharge hopper is set at the lower part of the return inclined plate; the blowing and cleaning mechanism includes a secondary wind wheel, a secondary blower, a secondary shaking wheel, The crank connecting rod mechanism, the secondary wind wheel and the secondary blower are fixed on the same shaft. The secondary shaking wheel and the crank are fixed on the same shaft, one end of the connecting rod is connected to the crank, and the other end of the connecting rod is connected to the frame of the shaking mechanism. When the secondary shaking wheel rotates, the crank drives one end of the connecting rod to rotate, and the other end of the connecting rod drives The rack of the shaking mechanism moves back and forth from side to side. Grain and a small amount of crushed sundries, sand, etc. fall from the feeding end onto the double inclined sieve, and slide down the inclined plane under the vibration of the crank linkage mechanism. Sliding along the inclined surface into the discharge hopper, a small amount of crushed sundries, sand, etc. are blown out of the machine by the secondary blower. the

When working, the double-drum folding wheat thresher is connected to the matching tractor, and the power of the tractor drives the large transmission wheel of the double-drum folding wheat thresher to rotate through the transmission mechanism. Driven by the large transmission wheel, the whole machine enters the working state, feeding The wheel feeds the wheat draft into the crushing barrel, and the grass crushing knives of the left and right grass crushing drums crush the wheat draft and thresh the grain. The crushed matter and grain fall freely through the sieve, and the blowing and grading mechanism blows the crushed matter out. The grain falls on the slant plate and slides into the pushing trough on the inclined surface. The pushing mechanism and the lifting mechanism transport the grain to the double sieve secondary cleaning device. The double sieve secondary cleaning device cleans the grain after secondary cleaning. grains and grinds. the

The utility model has the advantages of:

The utility model adopts mechanization to crush wheat stalks and grain threshing, which greatly reduces labor intensity, improves work efficiency, saves time and effort; the utility model can be matched with tractor power, and can also be matched with independent motor drive power. The distribution of the route structure is reasonable, the efficiency is high, and the energy consumption is small; a double-drum folding wheat threshing machine is provided, which is compact in structure and low in cost, and some parts can be folded for easy transportation.

Description of drawings:

Fig. 1 is the working schematic diagram of the present utility model;

Fig. 2 is the front view of the transmission structure of the present utility model;

Fig. 3 is the right view of the overall structure of the utility model;

Fig. 4 is a schematic diagram of the folding structure of the discharge channel of the present invention;

Fig. 5 is a working schematic diagram of the double screen secondary cleaning device of the present invention.

Detailed ways

As shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the utility model comprises a frame (1) and a feeding table (2) arranged on the frame, a crushing and threshing bin (3), air separation warehouse (4), auger conveying mechanism, double screen secondary cleaning device (5). Said feeding platform (2) is arranged on the side of the crushing and threshing bin (3), and the lower part of the crushing and threshing bin (3) is provided with an air separation bin (4), and the lower part of the air selection bin (4) is provided with an auger conveying mechanism, The dragon conveying mechanism communicates with the double-screen secondary cleaning device (5), and the double-screen secondary cleaning device (5) is fixed on the frame (1). the

The said feeding platform (2) is fixed on the right side of the frame (1), and the feeding port of the feeding platform (2) is provided with a retractable rake conveying roller (6), and the rear end of the conveying roller (6) shaft is installed There are feed wheels (7). the

The crushing and threshing bin (3) is provided with two left and right wheat threshing and grass-breaking drums (10, 8), and each grass-breaking drum (10, 8) has multiple rows of grass-breaking knives (11, 9) welded on its surface. , the left and right two grass-cutting rollers (10, 8) are parallel to each other, and the left and right two grass-breaking rollers (10, 8) rotate synchronously and in the same direction, but the left and right two grass-breaking rollers (10, 8) have multiple rows of grass-cutting knives ( 11, 9) Cross cutting operation, so that the wheat orange stalks will not be wound on the surface of the drum, the shafts of the left and right two grass-cutting rollers (10, 8) are fixed on the frame (1) through bearings, the left grass-cutting roller ( 10) The belt pulley (12) at the front end of the shaft is respectively connected with the large transmission wheel (15) and the pulley (16) at the front end of the shaft front end of the right grass breaking drum (8) through belts (13, 14). The belt pulley (16) is respectively connected with the feed wheel (7) and the wind wheel (19) through the belt (17, 18), and the belt pulley (20) at the rear end of the shaft rear end of the right broken grass drum (8) is respectively connected with the lifting wheel (22) and The vibration wheel (21) is connected; the crushing and threshing bin (3) is provided with a cover (23), the left side of the cover (23) is hinged with the frame (1), and the crushing and threshing bin (3) is fixed with a screen ( 24), the tangerine material and the grain of wheat that are pulverized (11,9) and threshed by many rows of grass cutters fall to the left and right inclined plates (25,26) and slide up and down through the screen cloth (24). the

Said winnowing bin (4) is made up of left and right sloping plates (25, 26), blower (27), discharge channel (28), windshield (29), and left and right sloping plates (25, 26) are arranged on the sieve The lower part of the net (24) is fixed on the frame (1); the lower part of the right inclined plate (26) is provided with a blower (27), and the blower (27) is fixed on the frame (1), and the blower outlet of the blower (27) Aligning on the discharge channel (28), the fallen wheat grains and orange materials are blown to the direction of the discharge channel (28) by wind force, and the lighter orange materials are blown to the frame ( 1) In addition, the heavier wheat grains fall onto the auger trough (36) to realize the sorting of wheat grains and orange materials; the lower part of the left sloping plate (25) is provided with a discharge channel (28), which is convenient for transportation. The upper and lower (30, 31) and front and rear plates (32, 33) of the discharge channel (28) are designed to be foldable, wherein the upper and lower plates (30, 31) are hinged with the frame (1), and the front and rear plates (32, 33) are connected to the The lower plate (31) is hinged, and when it needs to be folded, the upper plate (30) is folded downward, and the front and rear plates (32, 33) are turned backwards at 270°C to be folded parallel to the lower plate (31), and the lower plate (31) and the front and rear plates ( 32, 33) can be folded up together; the windshield (29) is fixed near the outlet (28), and the windshield (29) adjusts the slope through the screw (34), such as the outlet (28 ) when wheat grains are found, the slope of the windshield (29) can be adjusted to block part of the wind force so that the wheat grains and orange materials are not blown out of the frame (1) from the discharge channel (28). By adjusting the windshield (29) ) slope to control the wheat grains that are carried out in the straw. the

Said auger conveying mechanism is made up of a push auger and a lift auger, and the push auger is a mechanism for transporting the grain falling in the push trough to the lift auger, and the push auger is driven by the push wheel (37), auger groove (36), auger (35) form. The push wheel (37) is fixed on the auger (35) shaft, and the push wheel (37) is connected with the large transmission wheel (15) by a belt or chain (38), wherein the large transmission wheel (15) is fixed on the frame ( 1) In the front, the large transmission wheel (15) is connected with the external power. When the pushing wheel (37) rotates, the auger (35) rotates together. The pushing groove (36) is a semicircular concave groove, which is fixed on the frame ( 1) above; the lifting auger is the mechanism that transports the grain in the lifting cylinder (39) to the double screen secondary cleaning device (5). The lifting auger is composed of the lifting cylinder (39), the auger ( 40), lifting wheel (22), discharge tube (41) is formed, and lifting tube (39) is a cylindrical tube, is fixed on the frame (1), and auger ( 40), the auger (40) is connected with the lifting wheel (22) in the form of gear transmission, the discharge cylinder (41) is the hopper on the upper end of the lifting cylinder (39), and the discharge opening of the lifting cylinder (39) faces the double At the feed end (42) of the secondary cleaning device (5) of the sieve, the grain is lifted to the discharge cylinder (41) by the auger (40) and enters into the secondary cleaning device (5) of the double sieve. the

Said double-sieve secondary cleaning device (5) is composed of a shaking mechanism and a blowing cleaning mechanism. The shaking mechanism is an integral independent mechanism, placed on the track (43) of the blowing cleaning mechanism, and the blowing cleaning mechanism is fixed on the frame (1 ), the shaking mechanism and the blowing cleaning mechanism are connected through the crank (44) connecting rod (45) mechanism, and the shaking mechanism complete machine moves back and forth along the track (43) through the crank (44) connecting rod (45) mechanism. The shaking mechanism includes a feed end (42), a double inclined sieve (46), an inclined plate (47), a return inclined plate (49), a draft plate (50), and a hopper (51). The feed end (42) is set on At the upper right end of the shaking mechanism, there is a double inclined sieve (46) at the lower part of the feeding end (42). Inclined plate (47) and return inclined plate (49), inclined plate (47) extends from the feed end (42) to the top of the discharge hopper (51), leaving a blower between the inclined plate (47) and the discharge hopper (51). space, the return inclined plate (49) extends from the upper end of the draft plate (50) to the discharge hopper (51), the upper end of the draft plate (50) is hinged with the return inclined plate (49), and is folded on the double inclined screen (46) when it needs to be transported , the discharge hopper (51) is set on the lower part of the return inclined plate (49); the blowing cleaning mechanism includes the secondary wind wheel (52), the secondary blower (53), the secondary shaking wheel (54), the crank (44) connecting rod ( 45) mechanism, the secondary wind wheel (52) and the secondary air blower (53) are fixed on the same shaft. The secondary shaking wheel (54) and the crank are fixed on the same shaft (48), one end of the connecting rod (45) is articulated with the crank (44), the other end of the connecting rod (45) is articulated with the frame of the shaking mechanism, and the secondary shaking When the wheel (54) rotates, the crank (44) drives one end of the connecting rod (45) to rotate, and the other end of the connecting rod (45) drives the shaking mechanism frame to move back and forth. Grain and a small amount of crushed sundries, sand, etc. fall from the feed end (42) onto the double inclined sieve (46), and slide down the slope under the vibration of the crank (44) connecting rod (45) mechanism, and the grain passes through the double sieve The inclined sieve (46) falls to the inclined plate (47) or the return inclined plate (49) and slides into the discharge hopper (51) along the inclined surface, and a small amount of crushed sundries, sand, etc. are blown out of the machine by the secondary blower (53) . the

The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings, but the mechanism structure of the present utility model is not limited to the above embodiments, and other changes can also be made within the scope of knowledge possessed by those of ordinary skill in the art. . For example, in the above-mentioned embodiments, the lifting mechanism adopted for the lifting of the grain is an auger-type lifting mechanism. Obviously, the utility model can also adopt a tipping bucket-type lifting mechanism; in addition, in the above-mentioned embodiments, the belt can also be The drive is replaced by a chain drive. the

Claims (3)

1. collapsible wheat thresher of twin-roll, comprise frame (1) and be arranged on feed table (2) on the frame, pulverize threshing bin (3), air separating bin (4), poker conveyer structure, two sieve secondary cleaning plants (5), said feed table (2) is arranged on pulverizes threshing bin (3) side, pulverize threshing bin (3) bottom and be provided with air separating bin (4), air separating bin (4) bottom is provided with the poker conveyer structure, poker conveyer structure and two secondary cleaning plant (5) UNICOMs of sieving, two sieve secondary cleaning plants (5) are fixed on the frame (1); Said feed table (2) is fixed on frame (1) right side, the spout place of feed table (2) is provided with flexible tooth harrow conveying cylinder (6), conveying cylinder (6) shaft rear end is equipped with feeding-wheel (7), it is characterized in that: two broken careless cylinders (10 of wheat threshing about being provided with in the said pulverizing threshing bin (3), 8), each broken careless cylinder (10,8) be welded with many row's grass-smashing reamers (11 on the surface, 9), about two broken careless cylinders (10,8) be parallel to each other, about two broken careless cylinders (10,8) synchronous, rotating in same direction, two broken careless cylinders (10 on the contrary, 8) many row's grass-smashing reamers (11,9) mutually cross-shear running, about two broken careless cylinders (10,8) axle is fixed on the frame (1) by bearing, the belt pulley (12) of left broken careless cylinder (10) axle front end is by belt (13,14) respectively with large drive wheel (15) be connected the belt pulley (16) of broken careless cylinder (8) axle front end and be connected, the belt pulley (16) of right broken careless cylinder (8) axle front end is by belt (17,18) be connected 19 with feeding-wheel (7) with wind wheel respectively) be connected, the belt pulley (20) of right broken careless cylinder (8) shaft rear end is connected 21 with elevator wheel (22) with vibrating wheels respectively) be connected; Be provided with cover cap (23) above pulverizing threshing bin (3), place, cover cap (23) left side is hinged with frame (1), pulverizes to be fixed with screen cloth (24) below the threshing bin (3).

2. the collapsible wheat thresher of twin-roll according to claim 1, it is characterized in that: said air separating bin (4) is comprised of left and right sides swash plate (25,26), fan blower (27), discharging channel (28), deep bead (29), left and right sides swash plate (25,26) is located at screen cloth (24) bottom, and is fixed on the frame (1); Right swash plate (26) bottom is provided with fan blower (27), and fan blower (27) is fixed on the frame (1), and the blowing mouth of fan blower (27) is aimed on the discharging channel (28); Left swash plate (25) bottom is provided with discharging channel (28), (30,31) and front and rear panel (32,33) are designed to collapsible about the discharging channel (28), wherein upper and lower plates (30,31) is hinged with frame (1), front and rear panel (32,33) is hinged with lower plate (31), upper plate (30) is down folding, front and rear panel (32,33) overturn backward 270 ℃ parallel with lower plate (31) folding, lower plate (31) up folds with front and rear panel (32,33); Deep bead (29) is fixed on discharging channel (28) and approaches the place, and deep bead (29) is regulated gradient by screw mandrel (34).

3. the collapsible wheat thresher of twin-roll according to claim 1; it is characterized in that: diclinic sieve (46) is arranged at feed end (42) bottom of said two sieve secondary cleaning plants (5); diclinic sieve (46) directly extends to out original text plate (50) from feed end (42), goes out original text plate (50) upper end hinged with time swash plate (49).

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