Seed grading and screening equipment

Abstract

The utility model relates to the technical field of agriculture, and discloses a seed grading and screening device which comprises a base, the top of the base is fixedly connected with a shell, the middle of the base is rotationally connected with a worm, the middle of the base is rotationally connected with a worm gear, the worm is meshed with the worm gear, the outer side of the worm gear is fixedly connected with a cam, and the cam is fixedly connected with the shell. The middle of the base is slidably connected with an L-shaped plate, the cam makes contact with the L-shaped plate, the side, away from the cam, of the L-shaped plate is slidably connected to the middle of the shell, and the side, away from the cam, of the L-shaped plate is fixedly connected with a first sieve plate. According to the highland barley seed screening device, the worm can drive the worm gear and the rotating rod to rotate through the driving motor, then highland barley seeds can be poured into the shell, meanwhile, the first screening plate and the second screening plate can move up and down, the highland barley seeds can be screened, the labor intensity of workers is reduced, and meanwhile the screening efficiency of the highland barley seeds is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of agriculture, in particular to a seed grading and screening device. Background Art

[0002] Highland barley is the main food, fuel and livestock feed for residents in China's Tibetan areas. It is also the raw material for the production of beer, medicine and health products. Highland barley is produced by sowing highland barley seeds in the land and growing them through the careful care of farmers.

[0003] Barley seeds need to be selected before sowing. Seed selection is to increase the germination rate, and size classification is to improve the uniformity of seedlings, so that the seedlings are complete and even, thereby increasing the yield.

[0004] The common way of selecting highland barley seeds is that farmers use handheld sieves to screen the seeds. The sieve can divide the highland barley seeds into two grades, large and small. Although the highland barley seeds can be selected, there are still some shortcomings. When screening the seeds, farmers need to constantly move the sieve up and down. Long-term work will cause farmers to be tired, thereby increasing the labor intensity of farmers and reducing the efficiency of seed selection. Therefore, a seed grading and screening device is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a seed grading and screening equipment, which aims to improve the problem in the prior art that farmers are required to constantly move the screen up and down when screening seeds. Long-term work will cause farmers to be tired, thereby increasing farmers' labor intensity and reducing the efficiency of seed selection.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a seed grading and screening device, comprising a base, the top of the base is fixedly connected to a shell, the middle part of the base is rotatably connected to a worm, the middle part of the base is rotatably connected to a worm wheel, the worm and the worm wheel are meshed, the outer side of the worm wheel is fixedly connected to a cam, the middle part of the base is slidably connected to an L-shaped plate, the cam and the L-shaped plate are in contact, the side of the L-shaped plate away from the cam is slidably connected to the middle part of the shell, the side of the L-shaped plate away from the cam is fixedly connected to a sieve plate 1, the outer side of the L-shaped plate is fixedly connected to a sieve plate 2, the tops of the sieve plates 1 and 2 are both fixedly connected to compression springs, the other end of the compression springs is fixedly connected to the inside of the shell, the outer side of the shell is fixedly connected to a discharge box 1 and a discharge box 2 in sequence from top to bottom, and the bottom of the base is fixedly connected to a driving assembly.

[0007] As a further description of the above technical solution:

[0008] The driving assembly comprises a motor, the motor is fixedly connected to the bottom of the base, the worm is fixedly connected to the output end of the motor, and a feeding assembly is fixedly connected to the top of the worm.

[0009] As a further description of the above technical solution:

[0010] The feeding assembly includes a rotating rod, which is fixedly connected to the top of the worm, and an auger blade is fixedly connected to the outer side of the rotating rod. A sleeve is fixedly connected to the top of the base, and the auger blade is in contact with the sleeve. The outer side of the sleeve is fixedly connected with a discharge port and a feed port in sequence from top to bottom.

[0011] As a further description of the above technical solution:

[0012] A collecting box is slidably connected to the middle of the shell, and the collecting box is located below the second sieve plate.

[0013] As a further description of the above technical solution:

[0014] A movable groove is provided inside the shell, and the sieve plate 1 and the sieve plate 2 are respectively slidably connected to the middle parts of the two movable grooves.

[0015] As a further description of the above technical solution:

[0016] A handle is fixedly connected to the outer side of the collecting box.

[0017] As a further description of the above technical solution:

[0018] The bottom of the base is fixedly connected with a support rod, and the bottom of the support rod is fixedly connected with a cushion block.

[0019] As a further description of the above technical solution:

[0020] A funnel is fixedly connected to the top of the feed port.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, larger seeds can be separated from smaller seeds by sieve plates one and two, and the worm can drive the worm wheel and the cam to rotate by driving the motor, so that the L-shaped plate can drive the sieve plates one and two to move downward, and the compression spring will be compressed. When the pressure on the L-shaped plate disappears, the L-shaped plate, the sieve plate one and the sieve plate two can be raised by the compression spring, so that the sieve plates one and two can be shaken to prevent the seeds from being stuck in the middle of the sieve plates one and two. At the same time, the small particles of impurities in the seeds can fall into the collection box for collection on the sieve plate two, thereby improving the quality of the seeds, and at the same time, there is no need for farmers to hold the sieve to screen the highland barley seeds.

[0023] 2. In the utility model, the seeds are first poured into the feed port, and then the seeds can be slid into the casing. When the worm rotates, the auger blades move the highland barley seeds upward in the casing, and the seeds can be discharged into the casing through the discharge port. Farmers do not need to lift the highland barley seeds and pour them into the casing, which further reduces the labor intensity of employees and further improves the efficiency of seed screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional schematic diagram of a seed grading and screening device proposed by the utility model;

[0025] Figure 2 This is a structural schematic diagram of a cam of a seed grading and screening device proposed by the utility model;

[0026] Figure 3 This is a schematic diagram of the structure of a motor for a seed grading and screening device proposed by the utility model;

[0027] Figure 4 This is a schematic structural diagram of an auger blade of a seed grading and screening device proposed by the utility model.

[0028] Legend:

[0029] 1. Base; 2. Shell; 3. Worm; 4. Worm wheel; 5. Cam; 6. L-shaped plate; 7. Screen plate 1; 8. Screen plate 2; 9. Compression spring; 10. Collecting box; 11. Discharge box 1; 12. Discharge box 2; 13. Motor; 14. Shell; 15. Feed port; 16. Discharge port; 17. Rotating rod; 18. Auger blade; 19. Funnel; 20. Movable slot. DETAILED DESCRIPTION

[0030] 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.

[0031] Reference Figure 1-Figure 3The utility model provides an embodiment: a seed grading and screening device, comprising a base 1, a shell 2 is fixedly connected to the top of the base 1, a worm 3 is rotatably connected to the middle part of the base 1, a worm wheel 4 is rotatably connected to the middle part of the base 1, the worm 3 and the worm wheel 4 are meshed, a cam 5 is fixedly connected to the outer side of the worm wheel 4, an L-shaped plate 6 is slidably connected to the middle part of the base 1, the cam 5 and the L-shaped plate 6 are in contact, the side of the L-shaped plate 6 away from the cam 5 is slidably connected to the middle part of the shell 2, the side of the L-shaped plate 6 away from the cam 5 is fixedly connected to a sieve plate 1 7, and the outer side of the L-shaped plate 6 is fixedly connected to a sieve plate 2 8. When highland barley seeds enter the shell 2, they will fall above the sieve plate 1 7. At this time, the highland barley seeds will slide to the lower part of the sieve plate 1 7. At this time, the smaller seeds will fall on the sieve plate 2 8, and the seeds will roll at the same time, so that small particles of impurities can be discharged, and the seeds can be screened at the same time.

[0032] Reference Figure 1-Figure 3 The shell 2 is provided with a movable groove 20, and the sieve plate 1 7 and the sieve plate 2 8 are respectively slidably connected in the middle of the two movable grooves 20. The sieve plate 1 7 and the sieve plate 2 8 can be moved up and down in the middle of the shell 2 through the movable groove 20. The tops of the sieve plates 1 7 and 8 are fixedly connected with compression springs 9, and the other ends of the compression springs 9 are fixedly connected to the inside of the shell 2. The outer side of the shell 2 is fixedly connected with a discharge box 1 11 and a discharge box 2 12 from top to bottom in sequence. The discharge box 1 11 and the discharge box 2 12 can provide a sieve. The seed discharge position above plate 1 7 and sieve plate 2 8, when the worm 3 rotates, can drive the worm wheel 4 and cam 5 to rotate, at this time, the L-shaped plate 6 can drive the sieve plate 1 7 and sieve plate 2 8 to compress the compression spring 9, when the pressure on the L-shaped plate 6 disappears, the L-shaped plate 6, sieve plate 1 7 and sieve plate 2 8 can be reset under the action of the compression spring 9, and then the sieve plate 1 7 and sieve plate 2 8 can be moved up and down, which can prevent seeds from being stuck in the middle of the sieve plate 1 7 and sieve plate 2 8, improve the seed screening effect, and reduce the labor intensity of farmers.

[0033] Reference Figure 1-Figure 3 A collecting box 10 is slidably connected to the middle of the outer shell 2, and the collecting box 10 is located below the sieve plate 28. Small particles of impurities that slide down from the middle of the sieve plate 28 can be collected through the collecting box 10. The collecting box 10 can be taken out and the impurities inside it can be cleaned by pulling the collecting box 10. A handle is fixedly connected to the outside of the collecting box 10, and the collecting box 10 can be pulled out from the middle of the outer shell 2 more conveniently and comfortably through the handle, and the impurities collected in the collecting box 10 can be cleaned. A driving assembly is fixedly connected to the bottom of the base 1.

[0034] Reference Figure 2-Figure 4The driving assembly includes a motor 13, which is fixedly connected to the bottom of the base 1, and the worm 3 is fixedly connected to the output end of the motor 13. The worm 3 can be rotated by driving the motor 13, so that the sieve plate 1 7 and the sieve plate 2 8 can be easily moved up and down to complete the screening of highland barley seeds. The top of the worm 3 is fixedly connected with a feeding assembly.

[0035] Reference Figure 1 , Figure 2 and Figure 4 The feeding assembly includes a rotating rod 17, which is fixedly connected to the top of the worm 3. The outer side of the rotating rod 17 is fixedly connected with an auger blade 18. The top of the base 1 is fixedly connected with a casing 14. The auger blade 18 is in contact with the casing 14. The outer side of the casing 14 is fixedly connected with a discharge port 16 and a feed port 15 from top to bottom. When the worm 3 rotates, the rotating rod 17 can be driven to rotate. At this time, the highland barley seeds can be moved upward by the auger blade 18 and under the limit of the casing 14. When the seeds move to the height of the discharge port 16, they will enter the discharge port 16. At this time, the seeds can be transported to the inside of the shell 2 through the discharge port 16, which can further reduce the labor intensity of farmers and further improve the efficiency of seed screening. The top of the feed port 15 is fixedly connected with a funnel 19. The capacity of the feed port 15 can be increased by the funnel 19, so that the seeds can be fed in large quantities.

[0036] Reference Figure 1 The bottom of the base 1 is fixedly connected to a support rod, and the bottom of the support rod is fixedly connected to a cushion block. The support rod and the cushion block can improve the stability of the base 1, thereby preventing the device from shaking and displacing during use.

[0037] Working principle: When in use, highland barley seeds are poured into the outer shell 2. At this time, the larger seeds can be blocked by the action of the sieve plate 1 7, and the smaller seeds can be blocked by the sieve plate 2 8. At the same time, the seeds above the sieve plate 1 7 and the sieve plate 2 8 can slide out from the middle of the outer shell 2 under the action of the discharge box 1 11 and the discharge box 2 12. The worm 3 drives the worm wheel 4 and the cam 5 to rotate by the driving motor 13. When the cam 5 rotates, the L-shaped plate 6 can be intermittently squeezed, so that the L-shaped plate 6 can drive the sieve plate 1 7 and the sieve plate 2 8 to move downward. The compression spring 9 can be compressed while the sieve plate 1 7 and the sieve plate 2 8 are moving. When the pressure on the L-shaped plate 6 disappears, the L-shaped plate 6, the sieve plate 1 7 and the sieve plate 2 8 can be raised under the action of the compression spring 9, and then the sieve plate 1 7 and the sieve plate 2 8 can be shaken by continuously squeezing the L-shaped plate 6 to prevent the seeds from being stuck in the middle of the sieve plate 1 7 and the sieve plate 2 8. At the same time, the sieve plate 2 8 can make the small particles of impurities in the seeds fall into the collecting box 10 for collection, thereby improving the quality of the seeds, and at the same time, there is no need for farmers to hold the sieve to screen the highland barley seeds;

[0038] Among them, the seeds are first poured into the feed port 15, and then the seeds can be slid into the casing 14. When the worm 3 rotates, the rotating rod 17 can be driven to rotate. At this time, the seeds can be moved upward in the casing 14 under the cooperation of the auger blades 18 and the casing 14, and the seeds can be discharged into the outer casing 2 through the discharge port 16, thereby eliminating the need for farmers to lift the highland barley seeds and pour them into the outer casing 2.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A seed grading and screening device, comprising a base (1), Features: The top of the base (1) is fixedly connected to a housing (2); a worm (3) is rotatably connected to the middle of the base (1); a worm wheel (4) is rotatably connected to the middle of the base (1); the worm (3) and the worm wheel (4) are meshed with each other; a cam (5) is fixedly connected to the outer side of the worm wheel (4); an L-shaped plate (6) is slidably connected to the middle of the base (1); the cam (5) and the L-shaped plate (6) are in contact; and the L-shaped plate (6) is slidably connected to the housing (2) on a side away from the cam (5). In the middle part of the housing (2), a side of the L-shaped plate (6) away from the cam (5) is fixedly connected to a sieve plate 1 (7), the outer side of the L-shaped plate (6) is fixedly connected to a sieve plate 2 (8), the tops of the sieve plates 1 (7) and 2 (8) are fixedly connected to compression springs (9), the other end of the compression springs (9) is fixedly connected to the inside of the housing (2), the outer side of the housing (2) is fixedly connected to a discharge box 1 (11) and a discharge box 2 (12) in sequence from top to bottom, and the bottom of the base (1) is fixedly connected to a driving assembly.

2. A seed grading and screening device according to claim 1, Features: The driving assembly comprises a motor (13), the motor (13) is fixedly connected to the bottom of the base (1), the worm (3) is fixedly connected to the output end of the motor (13), and the top of the worm (3) is fixedly connected to a feeding assembly.

3. A seed grading and screening device according to claim 2, Features: The feeding assembly comprises a rotating rod (17), the rotating rod (17) is fixedly connected to the top of the worm (3), an auger blade (18) is fixedly connected to the outer side of the rotating rod (17), a casing (14) is fixedly connected to the top of the base (1), the auger blade (18) is in contact with the casing (14), and a discharge port (16) and a feed port (15) are fixedly connected to the outer side of the casing (14) in sequence from top to bottom.

4. A seed grading and screening device according to claim 1, Features: A collecting box (10) is slidably connected to the middle of the outer shell (2), and the collecting box (10) is located below the second sieve plate (8).

5. A seed grading and screening device according to claim 1, Features: A movable groove (20) is provided inside the outer shell (2), and the sieve plate 1 (7) and the sieve plate 2 (8) are respectively slidably connected in the middle of the two movable grooves (20).

6. A seed grading and screening device according to claim 4, Features: A handle is fixedly connected to the outer side of the collection box (10).

7. A seed grading and screening device according to claim 1, Features: The bottom of the base (1) is fixedly connected to a support rod, and the bottom of the support rod is fixedly connected to a cushion block.

8. A seed grading and screening device according to claim 3, Features: A funnel (19) is fixedly connected to the top of the feed port (15).

Images