CN219719147U - Wheat threshing and screening device - Google Patents

Abstract

The utility model discloses a wheat threshing and screening device, and belongs to the field of screening and collecting wheat grains. A wheat threshing and screening device comprises a box body, wherein a first impurity discharging port is formed in one side of the box body, and a second impurity discharging port is formed below the part of the box body, provided with the first impurity discharging port; the side wall of the box body is rotationally connected with a worm, and the outer side wall of the worm is meshed with a worm wheel. According to the wheat harvester, the rotating shaft, the rotating piece and the impurity filtering bucket are matched, when the rotating shaft rotates, the impurity filtering bucket is driven to rotate, and as the rotating piece is provided with the threads, wheat grains and impurities smaller than the grain size of the wheat grains flow along the upper surface of the rotating piece, the impurities smaller than the grain size of the wheat grains in the wheat grains are shaken off, the wheat grains are left in the impurity filtering bucket, the impurities smaller than the grain size of the wheat grains fall onto the ground through the impurity filtering bucket, the cleanliness of the wheat grains is improved, the burden of personnel is lightened, and the harvesting efficiency of the wheat is improved.

Description

Wheat threshing and screening device

Technical Field

The utility model relates to the technical field of screening and collecting wheat grains, in particular to a wheat threshing and screening device.

Background

Wheat screening and collecting refers to the process of screening and collecting wheat. This process aims at screening clean kernels from the mixed straw, weed, stone, etc. impurities for subsequent processing and use. Typically, the wheat grain screening collection can be accomplished by the steps of: cleaning: wheat straw, weeds and other large particle impurities are removed from the kernels. This may be done by wind or mechanical means, for example using air classification machines, vibrating sieves or the like. And (3) screening: the wheat grains are screened according to the characteristics of size, shape and the like. This can be done using screens or sieves of different sizes to bring together kernels of similar size and shape for subsequent processing.

At present, because there is small-size field ridge for can't use the harvester to reap the wheat, at this moment all generally through the manpower to reap the wheat, the wheat after the completion of reaping needs to thresh the operation through the stone roller to the wheat, and because the wheat of reaping is less, adopt the stone roller to thresh time and energy, influence the efficiency of threshing to the wheat, and still can have impurity such as a large amount of straw in the stone roller threshing back wheat grain, the wheat after the completion of reaping needs personnel to utilize equipment such as fan to screen impurity such as straw that contains in the wheat grain, increase personnel's work burden, influence the collection efficiency to the wheat grain.

Disclosure of Invention

The utility model aims to solve the problem that in the prior art, personnel are required to screen wheat grains by using equipment such as a fan and the like, and provides a wheat threshing and screening device.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a wheat threshing and screening device comprises a box body, wherein a first impurity discharging port is formed in one side of the box body, and a second impurity discharging port is formed below the part of the box body, provided with the first impurity discharging port;

the side wall rotation of box is connected with the worm, the lateral wall meshing of worm has the worm wheel, the inside wall fixedly connected with pivot of worm wheel, the lateral wall bottom position fixedly connected with rotor of pivot, the lateral wall top fixedly connected with plectrum of pivot, the lateral wall rotation of pivot is connected with thin filter screen, the bottom both sides fixedly connected with vibrating spring of thin filter screen.

In order to screen straws and wheat grains of the wheat and cut and segment the straws, preferably, a motor is arranged on one side of the box body provided with a first impurity discharging port, the output end of the motor is fixedly connected with a main grain removing roller, the inner side wall of the main grain removing roller is fixedly connected with a cutter, the outer side wall of one end of the main grain removing roller, which is far away from the motor, is fixedly connected with a main gear, the outer side wall of the main gear is meshed with a slave gear, the inner side wall of the slave gear is fixedly connected with a slave grain removing roller, and the outer side wall of one end of the main grain removing roller, which is far away from the motor, is fixedly connected with a transmission assembly.

In order to filter the impurities smaller than the grain size, the bottom of the box body is fixedly connected with a impurity filtering bucket, the inner side wall of the box body is rotatably connected with a coarse filter screen, and the bottom of the movable end of the coarse filter screen is fixedly connected with a shaking spring.

Further, the end of the worm is rotatably connected with the inner side wall of the box body, and the worm penetrates through the side wall of the box body and is rotatably connected with the box body.

Further, the lateral wall of thin filter screen and the inside wall sliding connection of box just laminate each other, vibrating spring's bottom and the inside wall fixed connection of box.

Further, the fine filter screen is arranged at the position of the second impurity discharging port, and the fine filter screen and the second impurity discharging port are obliquely arranged and have the same inclination degree.

Furthermore, the outer side wall of the main grain removing roller is rotationally connected with the box body, and the end part and the outer side wall of the auxiliary grain removing roller are rotationally connected with the box body.

Further, the transmission assembly is fixedly connected with the outer side wall of the worm, and the transmission assembly consists of two belt pulleys and a belt.

Still further, the bottom of shake spring and the inside wall fixed connection of box, the rotation end setting of coarse strainer is in the bottom place of first row miscellaneous mouth.

Furthermore, the inner side wall of the impurity filtering bucket is attached to the bottom of the rotating plate and rotates mutually, and the middle position of the impurity filtering bucket is rotationally connected with the bottom of the rotating shaft.

Compared with the prior art, the utility model provides a wheat threshing and screening device, which has the following beneficial effects:

1. this screening plant is threshed to wheat uses through the cooperation of pivot, rotor and filter miscellaneous fill, when the pivot rotates, will drive the filter miscellaneous fill and rotate to owing to the rotor sets up to the screw thread, will make the wheat grain and be less than the impurity of wheat grain diameter and flow along the upper surface of rotor, shake down the impurity of being less than the wheat grain diameter in the wheat grain for the wheat grain is left in the filter miscellaneous fill, and is less than the impurity of wheat grain diameter and drop subaerial through the filter miscellaneous fill, has improved the cleanliness factor of wheat grain, has alleviateed personnel's burden, has improved the efficiency of reaping to the wheat.

2. This screening plant is threshed to wheat uses through pivot, plectrum, thin filter screen and vibrating spring's cooperation, will drive the plectrum and rotate when the pivot rotates, because thin filter screen is the slope setting, when the plectrum rotates to the right side from the left side, will make thin filter screen downwardly moving under the effect of plectrum, extrude vibrating spring, make the top of thin filter screen and the bottom looks parallel and level of second impurity removal mouth simultaneously, and when the plectrum rotates to the left side from the right side, thin filter screen loses the extrusion of plectrum, will make thin filter screen take place the shake under vibrating spring's effect, realized the shake to small-size straw and wheat grain, carry out automatic emission to small-size straw simultaneously, the filtration efficiency to the wheat grain has been improved.

The device has the advantages that the parts which are not involved in the device are the same as or can be realized by adopting the prior art, the large-sized straws, the small-sized straws and wheat grains can be screened, impurities smaller than the wheat grains can be screened, the cleanliness of the wheat grains is improved, the burden of personnel is reduced, and the harvesting efficiency of the wheat is improved.

Drawings

Fig. 1 is a schematic diagram of a three-dimensional structure of a front surface of a wheat threshing and screening device according to the present utility model;

fig. 2 is a schematic view of a three-dimensional structure of the back of a wheat threshing and screening device according to the present utility model;

fig. 3 is a schematic diagram of a front middle cutaway structure of a wheat threshing and screening device according to the present utility model;

fig. 4 is a schematic diagram of a three-dimensional structure of a case body of a wheat threshing and screening device according to the present utility model;

fig. 5 is a schematic diagram of a three-dimensional structure of a bottom removed from a box of a wheat threshing and screening device according to the present utility model.

In the figure: 1. a case; 2. a first impurity discharging port; 3. a second impurity discharging port; 4. a motor; 5. a main de-granulating roller; 6. a cutter; 7. a main gear; 8. a slave gear; 9. from the degranulation roll; 10. a transmission assembly; 11. a worm; 12. a worm wheel; 13. a rotating shaft; 14. a rotating piece; 15. a pulling piece; 16. a coarse filter screen; 17. a shaking spring; 18. fine filter screen; 19. a vibration spring; 20. and filtering the impurity.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1, 3-5, a wheat threshing and screening device comprises a box body 1, wherein a first impurity discharging port 2 is formed in one side of the box body 1, and a second impurity discharging port 3 is formed below the part of the box body 1 where the first impurity discharging port 2 is formed; the side wall of the box body 1 is rotationally connected with a worm 11, the end part of the worm 11 is rotationally connected with the inner side wall of the box body 1, the worm 11 penetrates through the side wall of the box body 1 and is rotationally connected with the box body 1, the outer side wall of the worm 11 is meshed with a worm wheel 12, the inner side wall of the worm wheel 12 is fixedly connected with a rotating shaft 13, the bottom part of the outer side wall of the rotating shaft 13 is fixedly connected with a rotating sheet 14, the top part of the outer side wall of the rotating shaft 13 is fixedly connected with a stirring sheet 15, the outer side wall of the rotating shaft 13 is rotationally connected with a fine filter screen 18, the fine filter screen 18 is arranged at the position of the second impurity discharging port 3, the fine filter screen 18 and the second impurity discharging port 3 are obliquely arranged, the same in inclination degree, two sides of the bottom of the fine filter screen 18 are fixedly connected with vibrating springs 19, the outer side wall of the fine filter screen 18 is in sliding connection with the inner side wall of the box body 1 and are mutually attached, and the bottom of the vibrating springs 19 is fixedly connected with the inner side wall of the box body 1;

the second impurity discharging port 3 is disposed at the bottom of the first impurity discharging port 2, the first impurity discharging port 2 is used for discharging large-sized straws, the second impurity discharging port 3 is used for discharging small-sized straws and impurities larger than the grain size, the rotating plate 14 is in a screw shape, and the aperture of the fine filter screen 18 is one five times the grain size of the wheat.

Referring to fig. 1-5, a motor 4 is installed at one side of a first impurity outlet 2 formed in a box body 1, a main particle removing roller 5 is fixedly connected to an output end of the motor 4, an outer side wall of the main particle removing roller 5 is rotationally connected with the box body 1, a cutter 6 is fixedly connected to an inner side wall of the main particle removing roller 5, a main gear 7 is fixedly connected to an outer side wall of one end of the main particle removing roller 5 far away from the motor 4, a slave gear 8 is meshed with an outer side wall of the main gear 7, a slave particle removing roller 9 is fixedly connected to an inner side wall of the slave gear 8, a cutter 6 is also installed in the slave particle removing roller 9, a transmission assembly 10 is fixedly connected to an outer side wall of one end of the main particle removing roller 5 far away from the motor 4, the transmission assembly 10 is fixedly connected with an outer side wall of a worm 11, and the transmission assembly 10 consists of two belt pulleys and one belt;

the pulley located above is fixedly connected to the outer side wall of the main degranulation roller 5, and the pulley located below is fixedly connected to the outer side wall of the worm 11.

Referring to fig. 4 and 5, the bottom of the box 1 is fixedly connected with a impurity filtering bucket 20, the inner side wall of the impurity filtering bucket 20 is attached to the bottom of the rotating piece 14 and rotates mutually, the middle position of the impurity filtering bucket 20 is rotationally connected with the bottom of the rotating shaft 13, the inner side wall of the box 1 is rotationally connected with a coarse filter screen 16, the rotating end of the coarse filter screen 16 is arranged at the position of the bottom of the first impurity discharging port 2, the bottom of the movable end of the coarse filter screen 16 is fixedly connected with a shaking spring 17, and the bottom of the shaking spring 17 is fixedly connected with the inner side wall of the box 1;

it should be noted that, the coarse screen 16 is used for filtering and screening large-scale straw, and the coarse screen 16 can extrude the shake spring 17 under the action of gravity of large-scale straw so that the coarse screen 16 shakes, further improves the filtration efficiency to large-scale straw, and the bottom of the impurity filtering bucket 20 is provided with the bin outlet, and installs the valve in the bin outlet, and the hole of impurity filtering bucket 20 is less than the particle diameter of wheat.

In the utility model, when in use, firstly, the valve in the discharge hole of the impurity filtering hopper 20 is closed, the motor 4 is started, so that the main grain removing roller 5 rotates, the auxiliary grain removing roller 9 is driven to rotate through the main gear 7 and the auxiliary gear 8, meanwhile, the main grain removing roller 5 and the cutter 6 in the auxiliary grain removing roller 9 rotate, then, the harvested wheat with straw is placed between the main grain removing roller 5 and the auxiliary grain removing roller 9, wheat and straw on the wheat with straw are screened, meanwhile, the cutter 6 is arranged to further improve the screening efficiency of the wheat and the straw, and the straw is cut and segmented;

the large straw, the small straw, wheat grains and other impurities which are cut and segmented firstly fall on the top of the coarse screen 16, so that the coarse screen 16 rotates downwards under the gravity impact of the large straw and the wheat grains to compress the shaking springs 17, and as no damping structure exists in the shaking springs 17, the shaking springs 17 drive the coarse screen 16 to shake, the screening efficiency of the large straw and the wheat grains is improved, and meanwhile, the large straw is discharged from the first impurity discharging port 2 under the rotation shaking of the coarse screen 16;

in the process, as the main grain removing roller 5 rotates, the worm 11 is driven to rotate by the transmission assembly 10, and then the worm wheel 12 is driven to rotate, so that the rotating shaft 13 rotates to drive the poking plate 15 to rotate along the top of the fine filter screen 18, and the poking plate 15 rotates to poke the small straws, wheat grains and other impurities on the fine filter screen 18, so that the small straws, the wheat grains and other impurities are conveniently screened, and meanwhile, when the poking plate 15 rotates from the left side to the right side, the fine filter screen 18 slides downwards under the extrusion of the poking plate 15 to extrude the vibrating spring 19, and when the poking plate 15 rotates from the right side to the left side, the fine filter screen 18 shakes under the action of the vibrating spring 19, and the screening efficiency of the small straws, the wheat grains and other impurities is further improved;

referring to fig. 3, when the pulling piece 15 rotates from the left side to the right side, due to the shape of the pulling piece 15, the fine filter screen 18 slides vertically downwards under the pushing action of the pulling piece 15 and the limiting action of the box body 1 and the rotating shaft 13, so that the top of the fine filter screen 18 is level with the bottom of the second impurity discharging port 3, impurities with the particle size larger than wheat grains such as small-sized straws are discharged through the second impurity discharging port 3, and the screening and filtering efficiency of the impurities such as small-sized straws and wheat grains is improved in one step;

the wheat grains and the impurities smaller than the grain size after being filtered by the fine filter screen 18 fall into the impurity filtering hopper 20, the rotating piece 14 rotates due to the rotation of the rotating shaft 13, the impurities smaller than the grain size are in a flowing state under the action of the rotating piece 14 due to the fact that the rotating piece 14 is arranged to be in a threaded mode, the wheat grains and the impurities smaller than the grain size can shake, the impurities smaller than the grain size are separated from the wheat grains, the wheat grains are left in the impurity filtering hopper 20 under the screening action of the impurity filtering hopper 20, the impurities smaller than the grain size fall onto the ground, meanwhile, the blockage of the impurity filtering hopper 20 is prevented due to the rotation of the rotating piece 14 and the attachment of the rotating piece 14 to the impurity filtering hopper 20, the cleanliness of the obtained wheat grains is improved, personnel are not required to resort to equipment again, the burden of the personnel is reduced, and the collecting efficiency of the wheat grains is improved.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (10)

1. The wheat threshing and screening device comprises a box body (1) and is characterized in that a first impurity discharging port (2) is formed in one side of the box body (1), and a second impurity discharging port (3) is formed below the part, provided with the first impurity discharging port (2), of the box body (1);

the side wall rotation of box (1) is connected with worm (11), the lateral wall meshing of worm (11) has worm wheel (12), the inside wall fixedly connected with pivot (13) of worm wheel (12), lateral wall bottom position fixedly connected with rotor (14) of pivot (13), lateral wall top fixedly connected with plectrum (15) of pivot (13), the lateral wall rotation of pivot (13) is connected with thin filter screen (18), the bottom both sides fixedly connected with vibrating spring (19) of thin filter screen (18).

2. The wheat threshing and screening device according to claim 1, characterized in that a motor (4) is installed on one side of the box body (1) provided with a first impurity discharging port (2), the output end of the motor (4) is fixedly connected with a main grain removing roller (5), the inner side wall of the main grain removing roller (5) is fixedly connected with a cutter (6), one end outer side wall of the main grain removing roller (5) away from the motor (4) is fixedly connected with a main gear (7), the outer side wall of the main gear (7) is meshed with a slave gear (8), the inner side wall of the slave gear (8) is fixedly connected with a slave grain removing roller (9), and one end outer side wall of the main grain removing roller (5) away from the motor (4) is fixedly connected with a transmission assembly (10).

3. The wheat threshing and screening device according to claim 1, wherein the bottom of the box body (1) is fixedly connected with a impurity filtering bucket (20), the inner side wall of the box body (1) is rotatably connected with a coarse filter screen (16), and the bottom of the movable end of the coarse filter screen (16) is fixedly connected with a shaking spring (17).

4. A wheat threshing and screening device as claimed in claim 1, characterized in that the end of the worm (11) is in rotational connection with the inner side wall of the box (1), the worm (11) penetrating the side wall of the box (1) and being in rotational connection with the box (1).

5. A wheat threshing and screening device according to claim 1, characterized in that the outer side wall of the fine filter screen (18) is in sliding connection with the inner side wall of the box body (1) and is mutually attached, and the bottom of the vibrating spring (19) is fixedly connected with the inner side wall of the box body (1).

6. A wheat threshing and screening device according to claim 1, characterized in that the fine filter screen (18) is arranged at the position of the second impurity discharging port (3), and the fine filter screen (18) and the second impurity discharging port (3) are arranged in an inclined manner, and the inclination degree is the same.

7. A wheat threshing and screening device according to claim 2, characterized in that the outer side wall of the main de-graining roller (5) is in rotational connection with the box (1), and the end and outer side wall of the secondary de-graining roller (9) is in rotational connection with the box (1).

8. A wheat threshing and screening device as claimed in claim 2, characterized in that the transmission assembly (10) is fixedly connected to the outer side wall of the worm (11), and that the transmission assembly (10) consists of two pulleys and a belt.

9. A wheat threshing and screening device according to claim 3, characterized in that the bottom of the shaking spring (17) is fixedly connected with the inner side wall of the box body (1), and the rotating end of the coarse filter screen (16) is arranged at the position of the bottom of the first impurity discharging port (2).

10. A wheat threshing and screening device according to claim 3, characterized in that the inner side wall of the impurity filtering hopper (20) is attached to the bottom of the rotating sheet (14) and rotates mutually, and the middle position of the impurity filtering hopper (20) is rotatably connected with the bottom of the rotating shaft (13).