Seed planting and screening device with screening function

Abstract

The utility model discloses a seed planting screening device with the screening function, which comprises a box body, a feed pipe, an output shaft, a third motor, a spring, a first motor and a second motor, the upper end of the box body is welded and communicated with the feed pipe end, the bottom of the box body is welded and connected with a support, the right side of the box body is welded and connected with a first-stage discharge pipe, and the first-stage discharge pipe is welded and connected with a second-stage discharge pipe. A second-stage discharging pipe is welded to the left side of the box body, the middle end of the support is connected with an output shaft through a bearing, a pear-shaped block is installed on the surface of the output shaft in a nested mode, and the output shaft is fixedly connected with the output end of the third motor; the lower end of the box body is movably connected with a movable rod, the bottom of the movable rod is welded with a clamping block, the clamping block is in bearing connection with a wheel shaft, and the lower end of the movable rod is welded with a spring. According to the screening device, unscreened seeds are subjected to two-stage screening and conveyed out through different pipelines, the screening capacity is improved, the screened seeds are prevented from being mixed again, and the timing and quantitative discharging function is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of screening devices, in particular to a seed planting screening device capable of performing a screening function. Background Art

[0002] In agricultural planting, seeds are one of the most important raw materials. In order to screen out impurities, bad seeds and to distinguish seeds of different sizes, it is necessary to use a screening device to screen crop seeds, which saves a lot of manpower, material resources and time. However, some existing screening devices still have certain defects, such as:

[0003] 1. Most of the existing screening devices only use one-stage screening, which has poor screening capacity and low work efficiency, prolonging the screening time, thereby increasing the length of later work, which is not conducive to rapid planting; 2. Some existing screening devices do not have the function of timing and quantitative feeding, and feeding too quickly will result in incomplete screening, while feeding too slowly will result in low work efficiency. In view of the above problems, it is urgent to carry out innovative design based on the original screening device structure. Utility Model Content

[0004] The utility model aims to provide a seed planting screening device capable of performing screening functions, so as to solve the problem that most of the above-mentioned background technologies only adopt one-stage screening, resulting in poor screening ability and lack of the function of timely and quantitative feeding.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a seed planting screening device capable of screening, comprising a box body, the upper end of the box body is welded and connected to the end of the feed pipe, and the bottom of the box body is welded and connected to a bracket, the right side of the box body is welded and connected to a primary discharge pipe, and the left side of the box body is welded and connected to a secondary discharge pipe

[0006] The lower end of the box body is movably connected with a movable rod, and both sides of the movable rod are convex, and at the same time, a spring is welded and connected to the lower end of the movable rod, and the other side of the spring is fixedly connected to the inner wall of the box body, and the surface of the movable rod is fixedly connected with a primary screening frame and a secondary screening frame, and the primary screening frame is screwed to a primary filter, and the secondary screening frame is screwed to a secondary filter;

[0007] The output end of the first motor is fixedly connected with a primary disc, and the primary disc is rotatably connected to the outer surface of the box body, and the surface of the primary disc is welded with a primary moon block, and the surface of the primary disc is welded with a primary positioning block, and the primary positioning block is meshedly connected with a primary groove wheel, and the primary groove wheel is rotatably connected to the outer surface of the box body;

[0008] The output end of the second motor is fixedly connected with a secondary disc, and the secondary disc is rotatably connected to the outer surface of the box body, and the surface of the secondary disc is welded with a secondary positioning block, and the surface of the secondary disc is welded with a secondary moon-shaped block, and the surface of the secondary positioning block is meshed with a secondary groove wheel, and the surface of the secondary groove wheel is fixedly connected with a secondary baffle, and the right side of the secondary baffle is in contact with the left side of the secondary discharge pipe, and the secondary groove wheel is rotatably connected to the outer surface of the box body;

[0009] Furthermore, the middle end of the bracket is connected to the output shaft bearing, and a pear-shaped block is nested and installed on the surface of the output shaft, and the output shaft is fixedly connected to the output end of the third motor;

[0010] A clamping block is welded to the bottom of the movable rod, and a wheel axle is connected to the clamping block bearing;

[0011] The pear-shaped block forms a rotating structure through an output shaft and a bracket, and the pear-shaped block fits the wheel axle. When the pear-shaped block rotates, the wheel axle can be pushed to move up and down.

[0012] Furthermore, the movable rod forms a lifting structure through the wheel axle and the box body, and the movable rod forms an elastic structure through the spring and the box body, and the central axis of the movable rod, the central axis of the wheel axle and the central axis of the output shaft are all in a straight line. The wheel axle moves up and down while driving the movable rod up and down. The spring strengthens the movable rod in the moving state, thereby improving the vibration effect on the primary screening frame and the secondary screening frame. The spring and the common longitudinal axis make the device more stable during operation.

[0013] Furthermore, the first-level screening frame and the second-level screening frame are both distributed in an inclined shape on the movable rod, and the first-level screening frame and the second-level screening frame form a lifting structure with the box body through the movable rod, and the side ends of the first-level screening frame and the second-level screening frame are both in contact with the inner wall of the box body, the mesh diameter of the first-level filter net is larger than the mesh diameter of the second-level filter net, and the movable rod can drive the first-level screening frame and the second-level screening frame to screen the seeds. During the movement, the seeds in the first-level screening frame and the second-level screening frame will not fall to the bottom of the box body, but fall into the first-level discharge pipe and the second-level discharge pipe along the inclined angle. The difference in mesh diameters can allow the largest seeds to remain in the first-level screening frame, and slightly smaller seeds and impurities, dust, etc. fall into the second-level screening frame for re-screening.

[0014] Furthermore, a primary baffle is fixedly connected to the back of the primary groove wheel, and the left side of the primary baffle is in contact with the right side of the primary discharge pipe. Primary baffles are provided on both lower ends of the primary groove wheel, and the diameter of the primary baffle is larger than the diameter of the primary discharge pipe. When the primary baffle is working, it can intermittently block and open and close the primary discharge pipe, so that the primary discharge pipe can intermittently stop discharging.

[0015] Furthermore, the primary groove wheel forms a rotating structure with the box body through the primary positioning block, and the center of the primary groove wheel is provided with an axis to position it on the outer wall of the box body, the primary disc and the primary moon-shaped block form a rotating structure through the first motor and the box body, and the centers of the primary disc and the primary moon-shaped block are provided with an axis to position them on the outer wall of the box body, and the front outer surface of the box body is hinged with a box door, and the primary disc drives the primary groove wheel to rotate, and the primary moon-shaped block uses its arc end to support the concave arc end of the primary groove wheel during rotation to improve the stability during rotation. Both the primary groove wheel and the primary disc are provided with an axis connected to the box body to further improve the stability, and the primary groove wheel drives the two primary baffles to move intermittently, so that the primary discharge pipe can discharge materials intermittently, and the smallest seeds, impurities, etc. fall to the bottom of the box body, and the box door can be opened for cleaning after screening is completed.

[0016] Compared with the prior art, the beneficial effects of the utility model are: the screening device performs secondary screening of the unscreened seeds and transports them out through different pipes, thereby improving the screening capacity, avoiding re-mixing of the screened seeds, and having the function of timed and quantitative feeding.

[0017] 1. The screening device is composed of a primary screening frame and a secondary screening frame to form a secondary screening structure, and the active rod and spring are used to stably screen while vibrating up and down, and the screened seeds are sent out from different outlets, thereby improving the screening capacity, saving working time, and avoiding mixing of screened seeds;

[0018] 2. The screening device uses the discs on both sides to drive the two sets of baffles to rotate stably. The two sets of baffles intermittently block the discharge ports on both sides, thus forming the function of timing and quantitative material discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the top cross-sectional structure of the box body of the utility model;

[0021] Figure 3 This is a schematic diagram of the top view of the structure of the first-level screening frame of the utility model;

[0022] Figure 4 This is a schematic diagram of the top view of the structure of the two-stage screening frame of the utility model;

[0023] Figure 5 This is a left-side structural schematic diagram of the first-level disc of the utility model;

[0024] Figure 6 This is a left-view structural diagram of the first level of the utility model;

[0025] Figure 7 This is a front view structural schematic diagram of the utility model.

[0026] In the figure: 1. box body; 2. feed pipe; 3. bracket; 4. primary discharge pipe; 5. secondary discharge pipe; 6. output shaft; 7. pear-shaped block; 8. third motor; 9. movable rod; 10. clamping block; 11. axle; 12. spring; 13. primary screening frame; 14. secondary screening frame; 15. primary filter screen; 16. secondary filter screen; 17. primary baffle; 18. primary groove wheel; 19. primary positioning block; 20. primary disc; 21. primary moon-shaped block; 22. first motor; 23. secondary baffle; 24. secondary groove wheel; 25. secondary positioning block; 26. secondary disc; 27. secondary moon-shaped block; 28. second motor; 29. ​​box door. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-Figure 7 The utility model provides a technical solution: a seed planting screening device capable of screening, comprising a box body 1, a feed pipe 2, an output shaft 6, a third motor 8, a spring 12, a first motor 22 and a second motor 28,

[0029] In this embodiment:

[0030] The upper end of the box body 1 is welded and connected to the end of the feed pipe 2, and the bottom of the box body 1 is welded with a bracket 3, the right side of the box body 1 is welded with a primary discharge pipe 4, and the left side of the box body 1 is welded with a secondary discharge pipe 5, the middle end of the bracket 3 is connected to the output shaft 6 bearing, and a pear-shaped block 7 is nested on the surface of the output shaft 6, and the output shaft 6 is fixedly connected to the output end of the third motor 8;

[0031] A movable rod 9 is movably connected to the lower end of the box body 1, and a clamping block 10 is welded to the bottom of the movable rod 9, and the clamping block 10 is bearing-connected to the wheel axle 11, and both sides of the movable rod 9 are convex, and a spring 12 is welded to the lower end of the movable rod 9, and the other side of the spring 12 is fixedly connected to the inner wall of the box body 1, and a primary screening frame 13 and a secondary screening frame 14 are fixedly connected to the surface of the movable rod 9, and the primary screening frame 13 is screwed to the primary filter 15, and the secondary screening frame 14 is screwed to the secondary filter 16;

[0032] The output end of the first motor 22 is fixedly connected with a primary disc 20, and the primary disc 20 is rotatably connected to the outer surface of the box body 1, and the surface of the primary disc 20 is welded with a primary moon-shaped block 21, and the surface of the primary disc 20 is welded with a primary positioning block 19, and the primary positioning block 19 is meshedly connected with a primary groove wheel 18, and the primary groove wheel 18 is rotatably connected to the outer surface of the box body 1;

[0033] The output end of the second motor 28 is fixedly connected with a secondary disc 26, and the secondary disc 26 is rotatably connected to the outer surface of the box body 1, and the surface of the secondary disc 26 is welded with a secondary positioning block 25, and the surface of the secondary disc 26 is welded with a secondary moon-shaped block 27, and the surface of the secondary positioning block 25 is meshedly connected with a secondary groove wheel 24, and the surface of the secondary groove wheel 24 is fixedly connected with a secondary baffle 23, and the right side of the secondary baffle 23 is in contact with the left side of the secondary discharge pipe 5, and the secondary groove wheel 24 is rotatably connected to the outer surface of the box body 1;

[0034] A door 29 is hingedly connected to the front outer surface of the box body 1 .

[0035] The pear-shaped block 7 forms a rotating structure through the output shaft 6 and the bracket 3, and the pear-shaped block 7 is in close contact with the wheel axle 11.

[0036] When using the seed planting screening device, according to Figure 1-Figure 7 First, the seed planting and screening device is placed in a suitable position, and then the power is started. The third motor 8 drives the surface-mounted pear-shaped block 7 to rotate in a circle at the middle end of the bracket 3 through the fixedly connected output shaft 6. The unscreened seeds are fed into the interior of the box body 1 through the feed pipe 2 connected to the upper end of the box body 1. The unscreened seeds fall into the primary screening frame 13 through the feed pipe 2.

[0037] The movable rod 9 forms a lifting structure through the axle 11 and the box 1, and the movable rod 9 forms an elastic structure through the spring 12 and the box 1, and the central axis of the movable rod 9, the central axis of the axle 11 and the central axis of the output shaft 6 are all on a straight line.

[0038] The primary screening frame 13 and the secondary screening frame 14 are both distributed in an inclined shape on the movable rod 9, and the primary screening frame 13 and the secondary screening frame 14 form a lifting structure with the box body 1 through the movable rod 9, and the side ends of the primary screening frame 13 and the side ends of the secondary screening frame 14 are both in contact with the inner wall of the box body 1, and the mesh diameter of the primary filter screen 15 is larger than the mesh diameter of the secondary filter screen 16.

[0039] The back of the primary groove wheel 18 is fixedly connected with a primary baffle 17, and the left side of the primary baffle 17 is in contact with the right side of the primary discharge pipe 4. The primary baffle 17 is provided at both lower ends of the primary groove wheel 18, and the diameter of the primary baffle (17) is greater than the diameter of the primary discharge pipe (4). The primary groove wheel 18 forms a rotating structure with the box body 1 through a primary positioning block 19, and a shaft is provided at the center of the primary groove wheel 18 to position it on the outer wall of the box body 1. The primary disc 20 and the primary moon-shaped block 21 form a rotating structure with the box body 1 through a first motor 22, and a shaft is provided at the center of the primary disc 20 and the primary moon-shaped block 21 to position it on the outer wall of the box body 1. The front outer surface of the box body 1 is hingedly connected with a box door 29.

[0040] The clamping block 10 welded to the bottom of the movable rod 9 is bearing-connected to the axle 11. The rotating movement of the pear-shaped block 7 pushes the axle 11 fitted therewith to move up and down. The axle 11 drives the movable rod 9 passing through the lower end of the box body 1 to move up and down. The spring 12 welded to the lower end of the movable rod 9 is fixedly connected to the inner wall of the box body 1 on the other side. The spring 12 improves the vibration effect and stability of the device while the movable rod 9 moves. The movable rod 9 is fixedly connected with an inclined primary screening frame 13 and a secondary screening frame 14. The unscreened seeds are screened in the primary screening frame through the movement of the movable rod 9. The first screen frame 13 rolls, and smaller seeds, impurities, etc. are sieved through the first filter screen 15 connected by screws to the first screen frame 13 and fall into the second screen frame 14 at the lower end for second screening. The largest seeds are transmitted through the first discharge pipe 4 during the activity of the movable rod 9. The output end of the first motor 22 drives the connected first disc 20 and the first moon-shaped block 21 welded thereto to perform circular rotation. The first positioning block 19 connected to the edge of the first disc 20 drives the first groove wheel 18 engaged therewith to rotate. The position of the first moon-shaped block 21 is aligned with the first groove wheel 18. Corresponding to the upper and lower parts, during the rotation process, the first-level moon-shaped block 21 uses its arc end to support the concave arc end of the first-level groove wheel 18 to improve the stability during rotation. The first-level groove wheel 18 and the first-level disc 20 are both connected by an axis and limited to the box body 1 to further improve the stability. The first-level groove wheel 18 drives the upper and lower first-level baffles 17 with a larger diameter than the first-level discharge pipe 4 to intermittently block the discharge of the first-level discharge pipe 4. The smaller seeds and impurities are screened out of the second-level discharge pipe 5 through the second-level filter screen 16 connected by screws in the second-level screening frame 14. The smaller seeds and impurities are transmitted out of the second-level discharge pipe 5, and the smallest seeds and impurities fall to At the bottom of the box body 1, the box door 29 can be opened for cleaning after screening is completed, and the output end of the second motor 28 drives the secondary disc 26 and the secondary moon-shaped block 27 connected thereto to rotate, and the secondary positioning block 25 connected to the secondary disc 26 drives the secondary groove wheel 24 engaged therewith to rotate, and during the rotation process, the secondary moon-shaped block 27 uses its arc end to support the concave arc end of the secondary groove wheel 24, and the secondary groove wheel 24 and the secondary disc 26 are both axially connected and limited to the box body 1, and the secondary groove wheel 24 drives the upper and lower secondary baffles 23 to intermittently block the secondary discharge pipe 5 from discharging materials.

[0041] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0042] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seed planting screening device capable of screening, comprising a housing (1), a first motor (22), a second motor (28) and a third motor (8), characterized in that: The upper end of the box body (1) is welded and connected to the end of the feed pipe (2), and the bottom of the box body (1) is welded to a bracket (3), the right side of the box body (1) is welded to a primary discharge pipe (4), and the left side of the box body (1) is welded to a secondary discharge pipe (5); The lower end of the box body (1) is movably connected to a movable rod (9), and both sides of the movable rod (9) are convex. At the same time, a spring (12) is welded to the lower end of the movable rod (9), and the other side of the spring (12) is fixedly connected to the inner wall of the box body (1). The surface of the movable rod (9) is fixedly connected to a primary screening frame (13) and a secondary screening frame (14), and the primary screening frame (13) is screwed to a primary filter screen (15), and the secondary screening frame (14) is screwed to a secondary filter screen (16); The output end of the first motor (22) is fixedly connected to a primary disc (20), and the primary disc (20) is rotatably connected to the outer surface of the casing (1), and a primary moon-shaped block (21) is welded to the surface of the primary disc (20), and a primary positioning block (19) is welded to the surface of the primary disc (20), and the primary positioning block (19) is meshedly connected to a primary groove wheel (18), and the primary groove wheel (18) is rotatably connected to the outer surface of the casing (1); The output end of the second motor (28) is fixedly connected to a secondary disc (26), and the secondary disc (26) is rotatably connected to the outer surface of the casing (1), and the surface of the secondary disc (26) is welded to a secondary positioning block (25), and the surface of the secondary disc (26) is welded to a secondary moon-shaped block (27), and the surface of the secondary positioning block (25) is meshingly connected to a secondary groove wheel (24), and the surface of the secondary groove wheel (24) is fixedly connected to a secondary baffle (23), and the right side of the secondary baffle (23) is in contact with the left side of the secondary discharge pipe (5), and the secondary groove wheel (24) is rotatably connected to the outer surface of the casing (1).

2. A seed planting screening device capable of screening according to claim 1, characterized in that: The middle end of the bracket (3) is connected to the bearing of the output shaft (6), and a pear-shaped block (7) is nested and installed on the surface of the output shaft (6), and the output shaft (6) is fixedly connected to the output end of the third motor (8); The bottom of the movable rod (9) is welded with a clamping block (10), and the clamping block (10) is bearing-connected with a wheel axle (11); The pear-shaped block (7) forms a rotating structure through the output shaft (6) and the bracket (3), and the pear-shaped block (7) is in close contact with the wheel axle (11).

3. A seed planting screening device capable of screening according to claim 2, characterized in that: The movable rod (9) forms a lifting structure through the wheel axle (11) and the box (1), and the movable rod (9) forms an elastic structure through the spring (12) and the box (1), and the central axis of the movable rod (9), the central axis of the wheel axle (11) and the central axis of the output shaft (6) are all on a straight line.

4. A seed planting screening device capable of screening according to claim 1, characterized in that: The first-stage screening frame (13) and the second-stage screening frame (14) are both distributed in an inclined manner on the movable rod (9), and the first-stage screening frame (13) and the second-stage screening frame (14) form a lifting structure with the box body (1) through the movable rod (9), and the side ends of the first-stage screening frame (13) and the second-stage screening frame (14) are both in contact with the inner wall of the box body (1), and the mesh diameter of the first-stage filter screen (15) is larger than the mesh diameter of the second-stage filter screen (16).

5. The seed planting screening device capable of screening according to claim 1, characterized in that: A primary baffle (17) is fixedly connected to the back of the primary groove wheel (18), and the left side of the primary baffle (17) is in contact with the right side of the primary discharge pipe (4). Both lower ends of the primary groove wheel (18) are provided with a primary baffle (17), and the diameter of the primary baffle (17) is greater than the diameter of the primary discharge pipe (4).

6. The seed planting screening device capable of screening according to claim 1, characterized in that: The primary groove wheel (18) forms a rotating structure with the box body (1) through the primary positioning block (19), and a shaft is provided at the center of the primary groove wheel (18) to position it on the outer wall of the box body (1); the primary disc (20) and the primary moon-shaped block (21) form a rotating structure with the box body (1) through the first motor (22), and a shaft is provided at the center of the primary disc (20) and the primary moon-shaped block (21) to position them on the outer wall of the box body (1); and a box door (29) is hingedly connected to the front outer surface of the box body (1).

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