CN215957235U - Husky rice threshing and cleaning machine - Google Patents

Abstract

The utility model discloses a husked rice threshing and cleaning machine which comprises a feed hopper, wherein a material shifting tooth group is rotationally connected in the feed hopper, and the material shifting tooth group realizes feeding through forward material shifting and reverse material shifting; the inner side wall of the threshing bin is a bearing circumferential surface, a plurality of threshing and throwing sheet groups are rotationally connected in the threshing bin, the inner diameter of the bearing circumferential surface is larger than the rotation range of the threshing and throwing sheet groups, and a coarse screen is embedded in the bottom wall of the threshing bin; the screening device comprises a screen mesh box, at least two stages of screen mesh components are arranged in the screen mesh box, a screen group fixing buckle is movably connected between the screen mesh components, the screen group fixing buckle is movably connected with a crankshaft power structure, one end of the screen mesh component, far away from the screen group fixing buckle, is provided with a discharge hole, and the discharge hole end is lower than the screen group fixing buckle; the power device is respectively connected with the threshing and throwing piece group, the crankshaft power structure and the material shifting tooth group in a transmission way. The utility model replaces manual threshing and cleaning of the husked rice, and greatly improves the working efficiency.

Description

Husky rice threshing and cleaning machine

Technical Field

The utility model relates to the field of threshing devices and cleaning devices, in particular to a husked rice threshing and cleaning machine.

Background

The sand rice is an annual wild desert plant, grows in a moving and semi-moving sand dune, has oval or elliptical fruits, is rich in zinc, potassium, magnesium and other mineral elements as well as various essential amino acids required by a human body, is processed into food such as bean jelly, steamed bread, noodles and the like, has warm and mellow taste, helps digestion and invigorates the spleen and stomach, and is a functional food.

When husked rice is harvested and threshed, the traditional method is that a plant is placed on a cloth sheet under a spade from a ground stem and is manually beaten by a wooden stick or rolled by stone, branches, stems and other large impurities are picked out, and husked rice seeds are selected by a sieve and a dustpan.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a husked rice threshing and cleaning machine, which solves the problems in the prior art, realizes the mechanization of husked rice threshing and cleaning and meets the requirement of large-scale husked rice harvesting.

In order to achieve the purpose, the utility model provides the following scheme: the utility model provides a husked rice threshing and cleaning machine, which comprises:

the feeding device comprises a feeding hopper, a material shifting tooth group is rotationally connected in the feeding hopper, and the material shifting tooth group realizes feeding through forward material shifting and reverse material shifting;

the inner side wall of the threshing bin is a bearing circumferential surface, a plurality of threshing and throwing sheet groups are rotationally connected in the threshing bin, the inner diameter of the bearing circumferential surface is larger than the rotation range of the threshing and throwing sheet groups, a coarse screen is embedded in the bottom wall of the threshing bin, and the coarse screen is positioned at the bottom of the threshing and throwing sheet groups;

the screening device comprises a screen mesh box, at least two stages of screen mesh components are arranged in the screen mesh box, a screen group fixing buckle is movably connected between the screen mesh components, the screen group fixing buckle is movably connected with a crankshaft power structure, a discharge hole is formed in one end, away from the screen group fixing buckle, of the screen mesh components, the discharge hole end is lower than the screen group fixing buckle, and a collecting box is arranged at the bottom of the screen mesh components;

and the power device is in transmission connection with the threshing and throwing piece group, the crankshaft power structure and the material shifting tooth group respectively.

Preferably, a feed inlet is formed in the feed hopper in a penetrating manner, the feed inlet is communicated with the threshing bin, the material shifting tooth group comprises a plurality of forward material shifting teeth and a plurality of reverse material shifting teeth, the forward material shifting teeth are circumferentially and fixedly connected to the outer edge of the forward material shifting shaft, the reverse material shifting teeth are circumferentially and fixedly connected to the outer edge of the reverse material shifting shaft, two ends of the forward material shifting shaft and the reverse material shifting shaft are axially connected into the feed hopper, the end part of the forward material shifting shaft extends out of the feed hopper and is fixedly connected with a forward material shifting belt pulley, the end part of the forward material shifting shaft extends out of the feed hopper and is fixedly connected with a reverse material shifting gear, a reverse adjusting gear is coupled to the outer side wall of the feed hopper, a reverse adjusting gear is fixedly connected to the end surface of the reverse adjusting gear, the center lines of the reverse adjusting gear and the reverse material shifting belt pulley are on the same straight line, and the reverse adjusting gear is engaged with the reverse material shifting gear, the reverse rotation adjusting belt pulley and the forward rotation material shifting belt pulley are rotationally connected through a belt.

Preferably, the threshing and flailing piece group comprises a plurality of flailing piece units which are arranged at intervals along the same direction, a drum shaft is connected in the threshing bin, a drum is fixedly connected to the outer edge of the drum shaft, a plurality of flailing piece units are fixedly connected to the outer edge of the drum, each flailing piece unit comprises two fixed iron pieces which are fixedly connected to the outer edge of the drum along the radial direction, two flailing pieces are arranged between the two fixed iron pieces, a first through hole is formed in each of the two flailing pieces and the two fixed iron pieces in a penetrating manner, a fixing bolt is arranged in each first through hole in a penetrating manner, one end, far away from a nut, of each fixing bolt is provided with a second through hole, and a bolt is arranged in each second through hole in a penetrating manner; the bottom of the threshing bin is penetrated and provided with a feed opening, and the coarse screen is embedded in the feed opening.

Preferably, two ends of the roller shaft extend out of the threshing bin and are fixedly connected with a transmission belt pulley respectively, and the transmission belt pulley at one end far away from the feed hopper is connected with a motor through belt transmission; the other end of the threshing bin is fixedly connected with a threshing machine bracket.

Preferably, the screen cloth case top is run through to have seted up and is connect the material mouth, connect the material mouth with the feed opening corresponds the setting, arbitrary level screen cloth subassembly includes first layer sieve section of thick bamboo, another level screen cloth subassembly includes second floor sieve section of thick bamboo, first layer sieve section of thick bamboo is in the inboard of second floor sieve section of thick bamboo, first layer sieve section of thick bamboo with second floor sieve section of thick bamboo through sieve group fixed outrigger with the box for sieve rigid coupling, first layer sieve section of thick bamboo with second floor sieve section of thick bamboo is close to discharge gate one end is installed sieve group respectively and is whipped the fixed band, the inboard diapire rigid coupling of first layer sieve section of thick bamboo has the short baffle of first layer sieve section of thick bamboo, the short vertical direction slope of baffle of first layer sieve section of thick bamboo sets up.

Preferably, the screen group fixing buckle comprises a power transmission arm, the power transmission arm is connected with the screen box in a rotating mode through a bearing, the crankshaft power structure comprises a power acquisition belt pulley, a crankshaft is fixedly connected to the center of the end face of the power acquisition belt pulley, the power acquisition belt pulley is connected with the transmission belt pulley in a rotating mode through a belt, the crankshaft is connected with the thresher support in a rotating mode through a bearing, the crankshaft is far away from one end of the power acquisition belt pulley, the power transmission arm is connected in a rotating mode, and the screen box is connected with the thresher support in a rotating mode through a bearing.

Preferably, the screen box is close to discharge gate one end is run through and has been seted up a plurality of third through-holes, the discharge gate includes first waste residue export and second waste residue export, first waste residue export is seted up first layer screen drum is kept away from power transmission arm one end, first waste residue export with the third through-hole intercommunication, the second waste residue export is seted up second layer screen drum is kept away from power transmission arm one end, the second waste residue export with the third through-hole intercommunication, the collection box can dismantle connect in second layer screen drum bottom.

Preferably, the output end of the motor is fixedly connected with a driving belt pulley, and the driving belt pulley is in transmission connection with the transmission belt pulley through a belt.

Preferably, the threshing machine further comprises a consignment structure, the consignment structure comprises a movable suspension bracket fixedly connected to the thresher support, a wire reversing pull rod is fixedly connected between the movable suspension bracket and the threshing bin, and four movement wheels are mounted at four corners of the bottom of the movable suspension bracket.

The utility model discloses the following technical effects: the device is provided with a feed hopper, and the feed hopper accelerates the feeding speed by the simultaneous action of forward stirring and reverse stirring;

the device is provided with a threshing bin, a plurality of flail groups are rotationally connected in the threshing bin to crush the husked rice, husked rice seeds are separated from fruit clusters under the interaction of the flail groups and a bearing circumferential surface, meanwhile, overlarge branches, stems and the like are knocked and crushed, and the separated husked rice seeds and other residual materials are fed into a screen group after passing through a coarse screen;

this device is equipped with the sieving mechanism, and sieving mechanism's at least two-stage screen assembly sieves and removes to beat thick debris such as thresh back branch, stem, ear of grain, makes the husky rice seed purity of selecting higher, and impurity content still less, and screen assembly is fixed detains and the bent axle power structure is screen assembly transmission power, makes screen assembly can reciprocating motion carry out the screening action, and screen assembly has inclination, is favorable to debris to follow the discharge gate department and flows.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a schematic structural view of a husked rice threshing and cleaning machine according to the present invention;

FIG. 2 is a schematic view of the external structure of the feed hopper of the present invention;

FIG. 3 is a schematic view of the internal structure of the feed hopper of the present invention;

FIG. 4 is a schematic view of the structure of a threshing bin according to the present invention;

FIG. 5 is a schematic view of the structure of the drum and the threshing and throwing sheet set of the present invention;

FIG. 6 is a schematic structural view of a screening apparatus according to the present invention;

FIG. 7 is a schematic view of the screen pack retaining clip and crankshaft power configuration of the present invention;

wherein, 1 is a feed hopper, 2 is a threshing bin, 3 is a motor, 4 is a thresher support, 5 is a screen assembly, 7 is a driving belt pulley, 8 is a movable suspension bracket, 9 is a reverse adjusting gear, 10 is a reverse material shifting gear, 11 is a forward material shifting belt pulley, 12 is a belt, 13 is a forward material shifting tooth, 14 is a reverse material shifting tooth, 16 is a roller, 17 is a roller shaft, 18 is a throwing unit, 19 is a bearing circumferential surface, 20 is a coarse screen, 21 is a throwing sheet, 22 is a fixed iron sheet, 23 is a bolt, 24 is a fixed bolt, 25 is a transmission belt pulley, 27 is a first waste residue outlet, 28 is a second waste residue outlet, 29 is a screen box, 30 is a first layer screen cylinder, 31 is a screen group fixing buckle, 32 is a screen group fixing outer frame, 33 is a first layer screen cylinder short baffle, 34 is a second layer screen cylinder, 35 is a crankshaft power structure, and 36 is a screen group throwing fixing belt, 37 is a forward material stirring shaft, 38 is a reverse material stirring shaft, and 39 is a reverse wire pull rod; 40 is a collecting box.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Referring to fig. 1-7, the present invention provides a husked rice threshing and cleaning machine, comprising:

the feeding device comprises a feeding hopper 1, wherein a material shifting tooth group is rotationally connected in the feeding hopper 1, and the material shifting tooth group realizes feeding through forward material shifting and reverse material shifting; the whole sand rice plant has thorns, the seeds are small, the sand rice plant is wrapped in fruit clusters with thorns on each axil of the leaves of the plant, the fruit clusters are distributed over the whole plant, the overground part of the mature sand rice is shoveled off from the ground stem, branches, stems, fruit clusters, leaves and the like of the overground part are forked into a feed hopper 1 by using agricultural forks, the feed hopper 1 is made of iron in the embodiment, the opening of the feed hopper is obliquely upward and is funnel-shaped, and the sand rice plant is fed into the interior after forward shifting and reverse shifting;

the inner side wall of the threshing bin 2 is a bearing circumferential surface 19, the threshing bin 2 is rotatably connected with a plurality of threshing and throwing sheet groups, the inner diameter of the bearing circumferential surface 19 is larger than the rotating range of the threshing and throwing sheet groups, a coarse screen 20 is embedded in the bottom wall of the threshing bin 2, and the coarse screen 20 is positioned at the bottom of the threshing and throwing sheet groups; under the interaction of the threshing and throwing sheet group and the bearing circumferential surface 19, the husked rice seeds are separated from the fruit clusters, meanwhile, overlarge branches, stems and the like are beaten and crushed, and the separated husked rice seeds and other residual materials are sent to the next procedure after passing through a coarse screen 20;

the screening device comprises a screen net box 29, at least two stages of screen assemblies 5 are arranged in the screen net box 29, a screen group fixing buckle 31 is movably connected between the screen assemblies 5, the screen group fixing buckle 31 is movably connected with a crankshaft power structure 35, a discharge hole is formed in one end, away from the screen group fixing buckle 31, of each screen assembly 5, the discharge hole end is lower than the screen group fixing buckle 31, and a collecting box 40 is arranged at the bottom of each screen assembly 5; after the screen assembly 5 of the screening device screens out coarse impurities such as branches, stems and fruit ears after threshing, sand grains with less impurities are obtained, the screen set fixing buckle 31 and the crankshaft power structure 35 transmit power for the screen set, so that the screen set 5 can perform screening action in a reciprocating motion, the screen set 5 has an inclination angle, the impurities can flow out from an outlet, and the collecting box 40 is used for collecting the sand grains.

And the power device is in transmission connection with the threshing and throwing piece group, the crankshaft power structure 35 and the material shifting tooth group respectively.

The feeding hopper 1 is provided with a feeding hole in a penetrating way, the feeding hole is communicated with the threshing bin 2, the material shifting tooth group comprises a plurality of forward material shifting teeth 13 and a plurality of reverse material shifting teeth 14, the plurality of forward material shifting teeth 13 are fixedly connected to the outer edge of a forward material shifting shaft 37 in the circumferential direction, the plurality of reverse material shifting teeth 14 are fixedly connected to the outer edge of a reverse material shifting shaft 38 in the circumferential direction, two ends of the forward material shifting shaft 37 and the reverse material shifting shaft 38 are connected in the feeding hopper 1 in a shaft mode, the end portion of the forward material shifting shaft 37 extends out of the feeding hopper 1 and is fixedly connected with a reverse material shifting gear 10, the outer side wall of the feeding hopper 1 is connected with a reverse adjusting gear 9 in a shaft mode, the end face of the reverse adjusting gear 9 is fixedly connected with a reverse adjusting belt pulley, the center lines of the reverse adjusting gear 9 and the reverse adjusting belt pulley are on the same straight line, the reverse adjusting gear 9 is meshed with the reverse material shifting gear 10, the reverse rotation adjusting belt pulley and the forward rotation material stirring belt pulley 11 are rotationally connected through a belt 12;

the two ends of the forward material stirring shaft 37 and the reverse material stirring shaft 38 are fixed on the shell of the feed hopper by a material stirring shaft bearing and a fixing frame, the reverse material stirring teeth 47 and the reverse material stirring shaft 38 rotate reversely after being regulated by a reverse regulating gear 9, the forward material stirring teeth 13 and the reverse material stirring teeth 14 rotate synchronously and act together, and the overground part of the sand and the rice fed into the feed hopper 1 is fed into the threshing bin 2 to be beaten and threshed; the clockwise turning material stirring shaft 37 obtains power by connecting the clockwise turning material stirring belt pulley 11 with a roller shaft belt pulley through a belt 12, the reverse turning adjusting belt pulley is connected with the clockwise turning material stirring belt pulley 11 through the belt 12, and the reverse turning material stirring gear 10 drives the reverse turning material stirring shaft 38 and the reverse turning material stirring teeth 14 to rotate after changing the direction through the reverse turning adjusting gear 9.

According to a further optimized scheme, the threshing and flailing piece group comprises a plurality of flail units 18 which are arranged at intervals along the same direction, a roller shaft 17 is connected in the threshing bin 2, a roller 16 is fixedly connected to the outer edge of the roller shaft 17, a plurality of flail units 18 are fixedly connected to the outer edge of the roller 16, each flail unit 18 comprises two fixed iron pieces 22 which are fixedly connected to the outer edge of the roller 16 along the radial direction, two flail pieces 21 are arranged between the two fixed iron pieces 22, a first through hole is respectively formed in each of the two flail pieces 21 and the two fixed iron pieces 22 in a penetrating mode, a fixing bolt 24 is arranged in each first through hole in a penetrating mode, one end, far away from a nut, of each fixing bolt 24 is provided with a second through hole, and a bolt 23 is arranged in each second through hole in a penetrating mode; a feed opening is arranged at the bottom of the threshing bin 2 in a penetrating way, and a coarse screen 20 is embedded in the feed opening;

threshing warehouse 2 sets up to cylindrical storehouse body in this embodiment, has the flail piece group of three rows of dislocation installations on the cylinder 16, and cylinder 16 drives when rotating and gets rid of piece 21 and gets rid of the husky rice plant of dialling into threshing warehouse 2 by dialling the material gear train, and two in this embodiment get rid of the piece 21 and crooked to opposite direction to increase the scope of getting rid of, accept that periphery 19 cooperation gets rid of piece unit 18 and beat husky rice plant, get rid of piece unit 18 and accept under periphery 19 combined action, husky rice seed breaks away from the fruit ear, and husky rice plant material after beating the completion gets into sieving mechanism through the feed opening after coarse screen 20 screens.

According to a further optimized scheme, two ends of the roller shaft 17 extend out of the threshing bin 2 and are respectively and fixedly connected with a transmission belt pulley 25, and the transmission belt pulley 25 at one end far away from the feed hopper 1 is in transmission connection with a motor 3 through a belt 12; the other end of the driving belt pulley 25 is in driving connection with the forward-rotation material shifting belt pulley 11 through a belt 12, and the threshing bin 2 is fixedly connected with the thresher support 4; two ends of the roller shaft 17 are fixedly connected with a transmission belt pulley 25 to facilitate the transmission of power.

According to a further optimization scheme, a material receiving port is formed in the top of the screen box 29 in a penetrating mode, the material receiving port and the material discharging port are arranged correspondingly, any stage of screen assembly 5 comprises a first layer screen cylinder 30, the other stage of screen assembly 5 comprises a second layer screen cylinder 34, the first layer screen cylinder 30 is arranged on the inner side of the second layer screen cylinder 34, the first layer screen cylinder 30 and the second layer screen cylinder 34 are fixedly connected with the screen box 29 through a screen group fixing outer frame 32, screen group whipping fixing belts 36 are respectively installed at the ends, close to the material discharging port, of the first layer screen cylinder 30 and the second layer screen cylinder 34, a first layer screen cylinder short baffle 33 is fixedly connected to the bottom wall of the inner side of the first layer screen cylinder 30, and the first layer screen cylinder short baffle 33 is arranged in an inclined mode in the vertical direction;

the screening plant is the shale shaker in this embodiment, the screen cloth sets and swings the one end that 36 fixed sieve group nets 5 of fixed band are close to the discharge gate, screen cloth sets 5 are fixed in screen box 29, screening plant installs under threshing warehouse 2, wholly rotate with threshing machine support 4 and be connected, screen box 29 installs certain gradient, high one end is located threshing warehouse 2 feed opening department, 30 meshes of first layer screen drum are bigger than second layer screen drum 34, the short baffle 33 of first layer screen drum blocks that to screen the material and sifts out from discharge gate etc. too fast, prevent husky rice seed after threshing and sift out along with the waste residue, second layer screen drum 34 makes the husky rice seed purity of screening higher, impurity content still less.

According to a further optimized scheme, the sieve group fixing buckle 31 comprises a power transmission arm 311, the power transmission arm 311 is rotatably connected with the sieve box 29 through a bearing, the crankshaft power structure 35 comprises a power acquisition belt pulley 351, a crankshaft 352 is fixedly connected to the center of the end face of the power acquisition belt pulley 351, the power acquisition belt pulley 351 is rotatably connected with the transmission belt pulley 25 through a belt 12, the crankshaft 352 is rotatably connected with the thresher support 4 through a bearing, one end, far away from the power acquisition belt pulley 351, of the crankshaft 352 is rotatably connected with the power transmission arm 311, and the sieve box 29 is rotatably connected with the thresher support 4 through a bearing;

after the power acquisition belt pulley 25 receives power, the crankshaft 352 is driven to rotate, and the crankshaft 352 drives the power transmission arm 311 to move, so that the screen box 29 is driven to move integrally to perform screening work.

According to a further optimization scheme, a plurality of third through holes are formed in one end, close to the discharge hole, of the screen box 29 in a penetrating mode, the discharge hole comprises a first waste residue outlet 27 and a second waste residue outlet 28, the first waste residue outlet 27 is formed in one end, far away from the power transmission arm, of the first layer screen drum 30, the first waste residue outlet 27 is communicated with the third through holes, the second waste residue outlet 28 is formed in one end, far away from the power transmission arm, of the second layer screen drum 34, the second waste residue outlet 28 is communicated with the third through holes, the collecting box 40 is detachably connected to the bottom of the second layer screen drum 34, the first waste residue outlet 27 and the second waste residue outlet 28 are used for discharging waste materials, and sand grains leak out of the bottom end of the second layer screen drum 34 and fall into the collecting box 40;

crushed mixed threshing materials enter the first layer screen drum 30 to be screened and separated into larger branches, stems, fruit clusters and other sundries, the first layer screen drum 30 and the second layer screen drum 34 have inclination angles, the short baffle 33 of the first layer screen drum is used for blocking the screened materials from being screened out from waste residue outlets 27 such as the branches and the stems too fast, and the threshed husked rice seeds are prevented from being screened out along with the waste residues. After being screened by the first layer screen drum 30, the milled rice continuously enters the second layer screen drum 34 for screening and separation, so that the screened milled rice seeds have higher purity and less impurity content.

In a further optimized scheme, the output end of the motor 3 is fixedly connected with a driving belt pulley 7, and the driving belt pulley 7 is in transmission connection with a transmission belt pulley 25 through a belt 12; in the embodiment, the power device can be powered by alternating current connected with the electric motor 3 or an internal combustion engine, in practical application, a tractor or an agricultural machine with belt wheel output power can be selected for power supply, and a belt 12 connected with the electric motor 3 is required to be removed when power is input by the tractor and the like.

According to the further optimized scheme, the husky rice threshing and cleaning machine comprises a carrying structure, the carrying structure further comprises a movable suspension frame 8 fixedly connected to a thresher support 4, a reverse wire pull rod 39 is fixedly connected between the movable suspension frame 8 and a threshing bin 2, four moving wheels 6 are mounted at four corners of the bottom of the movable suspension frame, the height of the movable suspension frame 8 can be adjusted to adapt to the carrying mechanical carrying of towing hooks with different heights, the reverse wire pull rod 39 enables the movable suspension frame 8 to be more stably connected with the threshing bin 2, the front two of the four moving wheels 6 are universal wheels to adapt to the movement in different directions, the rear two of the four moving wheels are long-distance towing wheels, the diameter of a hub is larger, the movable suspension frame 8 is lifted up during long-distance towing, the universal wheels are lifted off, the weight of the husky rice threshing and cleaning machine is distributed on a rear wheel and the towing machine, and the defect that the hubs of the universal wheels are not suitable for long-distance movement is overcome.

The husked rice threshing and cleaning machine integrates husked rice threshing and cleaning separation into an integrated machine device, and the threshing and cleaning separation are completed at one time; the threshing of the whole husked rice plant by beating and crushing is realized, and the problem that the existing crop thresher cannot thresh the husked rice is solved; the husky rice seeds and other impurities are separated by the two layers of screens and the vibration screening mode, the cleaning function is improved, the purity of the husky rice seeds is improved, the process steps are completed in a production line type and synchronously, the time and the labor are saved, and the working efficiency is greatly improved.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims (9)

1. A husked rice threshing and cleaning machine is characterized by comprising:

the feeding device comprises a feeding hopper (1), wherein a material shifting tooth group is rotationally connected in the feeding hopper (1), and the material shifting tooth group realizes feeding through forward material shifting and reverse material shifting;

the threshing device comprises a threshing bin (2), wherein the inner side wall of the threshing bin (2) is provided with a bearing circumferential surface (19), a plurality of threshing and throwing sheet groups are rotationally connected in the threshing bin (2), the inner diameter of the bearing circumferential surface (19) is larger than the rotation range of the threshing and throwing sheet groups, a coarse screen (20) is embedded in the bottom wall of the threshing bin (2), and the coarse screen (20) is positioned at the bottom of the threshing and throwing sheet groups;

the screening device comprises a screen box (29), at least two stages of screen assemblies (5) are arranged in the screen box (29), screen group fixing buckles (31) are movably connected between the screen assemblies (5), the screen group fixing buckles (31) are movably connected with a crankshaft power structure (35), a discharge hole is formed in one end, away from the screen group fixing buckles (31), of each screen assembly (5), the discharge hole end is lower than the screen group fixing buckles (31), and a collecting box (40) is arranged at the bottom of each screen assembly (5);

and the power device is in transmission connection with the threshing and throwing sheet group, the crankshaft power structure (35) and the material stirring tooth group respectively.

2. A husked rice threshing and cleaning mill according to claim 1, characterized in that: the feed hopper (1) is provided with a feed inlet in a penetrating way, the feed inlet is communicated with the threshing bin (2), the material shifting tooth group comprises a plurality of forward-rotating shifting teeth (13) and a plurality of reverse-rotating shifting teeth (14), the circumferential direction of the forward-rotating shifting teeth (13) is fixedly connected with the outer edge of a forward-rotating shifting shaft (37), the circumferential direction of the reverse-rotating shifting teeth (14) is fixedly connected with the outer edge of a reverse-rotating shifting shaft (38), the forward-rotating shifting shaft (37) and the reverse-rotating shifting shaft (38) are in shaft connection with the two ends of the feed hopper (1), the end part of the forward-rotating shifting shaft (37) extends out the feed hopper (1) and is fixedly connected with a reverse-rotating shifting gear (10), the outer side wall of the feed hopper (1) is connected with a reverse-rotating adjusting gear (9), the end face of the reversing adjusting gear (9) is fixedly connected with a reversing adjusting belt pulley, the reversing adjusting gear (9) and the central line of the reversing adjusting belt pulley are on the same straight line, the reversing adjusting gear (9) is meshed with the reversing material shifting gear (10), and the reversing adjusting belt pulley is rotationally connected with the forward material shifting belt pulley (11) through a belt (12).

3. A husked rice threshing and cleaning mill according to claim 2, characterized in that: the threshing and throwing plate group comprises a plurality of throwing plate units (18) which are arranged at intervals along the same direction, a roller shaft (17) is connected in the threshing bin (2), a roller (16) is fixedly connected to the outer edge of the roller shaft (17), a plurality of throwing plate units (18) are fixedly connected to the outer edge of the roller (16), each throwing plate unit (18) comprises two fixed iron sheets (22) which are fixedly connected to the outer edge of the roller (16) along the radial direction, two throwing plates (21) are arranged between the two fixed iron sheets (22), a first through hole is respectively formed in each throwing plate (21) and the two fixed iron sheets (22) in a penetrating mode, a fixing bolt (24) is arranged in each first through hole in a penetrating mode, a second through hole is formed in one end, far away from a nut, of each fixing bolt (24), and a bolt (23) is arranged in each second through hole in a penetrating mode; the bottom of the threshing bin (2) is provided with a feed opening in a penetrating way, and the coarse screen (20) is embedded in the feed opening.

4. A husked rice threshing and cleaning mill according to claim 3, characterized in that: two ends of the roller shaft (17) extend out of the threshing bin (2) and are fixedly connected with a transmission belt pulley (25) respectively, and the transmission belt pulley (25) at one end far away from the feed hopper (1) is in transmission connection with a motor (3) through a belt (12); the other end of the threshing bin is provided with a driving belt pulley (25) which is in transmission connection with a forward-rotation material shifting belt pulley (11) through a belt (12), and the threshing bin (2) is fixedly connected with a thresher support (4).

5. A husked rice threshing and cleaning mill according to claim 4, characterized in that: sieve box (29) top is run through and has been seted up and connect the material mouth, connect the material mouth with the feed opening corresponds the setting, arbitrary level sieve component (5) are including first layer sieve section of thick bamboo (30), another level sieve component (5) are including second layer sieve section of thick bamboo (34), first layer sieve section of thick bamboo (30) are in the inboard of second layer sieve section of thick bamboo (34), first layer sieve section of thick bamboo (30) with second layer sieve section of thick bamboo (34) through sieve group fixed outrigger (32) with sieve box (29) rigid coupling, first layer sieve section of thick bamboo (30) with second layer sieve section of thick bamboo (34) are close to discharge gate one end is installed sieve group respectively and is whipped fixed band (36), first layer sieve section of thick bamboo (30) inboard diapire rigid coupling has the short baffle (33) of first layer sieve section of thick bamboo, the short baffle (33) vertical direction slope setting of first layer sieve section of thick bamboo.

6. A husked rice threshing and cleaning mill according to claim 5, characterized in that: fixed knot of sieve group (31) includes power transmission arm (311), power transmission arm (311) pass through the bearing with sieve box (29) rotate to be connected, bent axle power structure (35) acquire belt pulley (351) including power, power acquires belt pulley (351) terminal surface center rigid coupling has bent axle (352), power acquire belt pulley (351) pass through belt (12) with driving pulley (25) rotate to be connected, bent axle (352) pass through the bearing with thresher support (4) rotate to be connected, bent axle (352) are kept away from power acquire belt pulley (351) one end with power transmission arm (311) rotate to be connected, sieve box (29) pass through the bearing with thresher support (4) rotate to be connected.

7. A husked rice threshing and cleaning mill according to claim 6, characterized in that: screen box (29) are close to discharge gate one end is run through and has been seted up a plurality of third through-holes, the discharge gate includes first waste residue export (27) and second waste residue export (28), first waste residue export (27) are seted up first layer screen drum (30) are kept away from power transmission arm one end, first waste residue export (27) with the third through-hole intercommunication, second waste residue export (28) are seted up second layer screen drum (34) are kept away from power transmission arm one end, second waste residue export (28) with the third through-hole intercommunication, collect box (40) can dismantle connect in second layer screen drum (34) bottom.

8. A husked rice threshing and cleaning mill according to claim 7, characterized in that: the output end of the motor (3) is fixedly connected with a driving belt pulley (7), and the driving belt pulley (7) is in transmission connection with the transmission belt pulley (25) through a belt (12).

9. A husked rice threshing and cleaning mill according to claim 8, characterized in that: the threshing machine is characterized by further comprising a consignment structure, wherein the consignment structure comprises a movable suspension bracket (8) fixedly connected to the thresher support (4), a wire reversing pull rod (39) is fixedly connected between the movable suspension bracket (8) and the threshing bin, and four movement wheels (6) are mounted at four corners of the bottom of the movable suspension bracket.

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