Seed screening device for agricultural technology popularization

Abstract

The utility model discloses a seed screening device for agricultural technology popularization, and relates to the technical field of seed screening. The device comprises a support frame; a baffle; a screening mesh; the screening net is used for separating seeds with different sizes; the screening device further comprises a protection plate, the outer surface of the protection plate is fixedly connected with the outer surface of the baffle, a feeding groove is fixedly connected to the top of the outer surface of the baffle, a fixing block is fixedly connected to the lower surface of the feeding groove, a rotating plate is rotationally connected to the inner surface of the fixing block, and a servo motor is arranged outside the rotating plate. The output end of the servo motor is fixedly connected with a rotating shaft, the outer surface of the rotating shaft is rotationally connected with a transmission belt, the outer surface of the rotating shaft is fixedly connected with a pushing column, and the pushing column rotates, so that seeds blocking the inlet are scattered and pushed and spread to the screening net, and large-particle seeds which are stacked at the bottoms of the seeds and block screening holes are pushed; the purpose that large-particle seeds do not block the screening net to screen the seeds is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of seed screening, in particular to a seed screening device for agricultural technology promotion. Background Art

[0002] Seed screening is one of the methods of crop seed cleaning. Seed sieves with different sizes and shapes of meshes are used to screen out impurities (mud, gravel, crop seeds, weed seeds, galls, husks, etc.), unripe seeds and small seeds, and select large, full and neat high-quality seeds to improve seed quality.

[0003] In the prior art, when seeds are screened, the seeds to be screened are generally placed directly into the screening machine. The traditional screening machine does not have a mechanism to break up the seeds at the entrance, causing the seeds to accumulate and block the entrance. When the screening process starts, the seeds have a high density due to full grains. When the seeds with high density and large diameter sink quickly due to shaking screening, the larger seeds will block the screening port, reducing the screening speed of the screening machine. Utility Model Content

[0004] In view of the deficiencies of the prior art, the technical solution adopted by the utility model to solve the technical problems is: a seed screening device for agricultural technology promotion, comprising: a support frame, the support frame is used to support the screening device assembly; a baffle, the baffle is used to prevent seeds from flying out of the screening device; a screening net; the screening net is used to separate seeds of different sizes; the screening device also includes: a protective plate, the outer surface of the protective plate is fixedly connected to the outer surface of the baffle, the top of the outer surface of the baffle is fixedly connected with a feed trough, the lower surface of the feed trough is fixedly connected with a fixed block, the inner surface of the fixed block is rotatably connected with a rotating plate, a servo motor is arranged outside the rotating plate, the output end of the servo motor is fixedly connected with a rotating shaft, the outer surface of the rotating shaft is rotatably connected with a transmission belt, the outer surface of the rotating shaft is fixedly connected with a pushing column, the inner wall of the protective plate is fixedly connected to the outer surface of the servo motor, the outer surface of the rotating shaft is rotatably connected to the inner surface of the baffle, the inner surface of the support frame is slidably connected to the outer surface of the screening net, and the pushing column rotates, so that the seeds blocking the entrance are scattered and pushed and spread onto the screening net.

[0005] Preferably, a sliding groove is provided in the wall of the fixed block, and the inner surface of the fixed block is fixedly connected to the first magnetic sheet via the sliding groove, a second magnetic sheet is arranged on the outside of the first magnetic sheet, the outer surface of the second magnetic sheet is fixedly connected to the outer surface of the screening net, the outer surface of the screening net is slidably connected to the inner surface of the fixed block via the sliding groove, the outer surface of the screening net is fixedly connected to the first magnetic strip, and the inner surface of the support frame is fixedly connected to the second magnetic strip, the first magnetic strip and the second magnetic strip repel each other, the first magnetic sheet and the second magnetic sheet repel each other, so that the movable filter net will shake more frequently due to the mutually repelling magnetic forces, thereby increasing the shaking rate during screening.

[0006] Preferably, the outer surface of the rotating shaft is fixedly connected with a cam, the outer surface of the cam is rotatably connected to the inner surface of the baffle, the inner surface of the baffle is slidably connected to a rotating block, the outer surface of the rotating block is rotatably connected to a connecting column, the lower surface of the connecting column is rotatably connected to a supporting block, the lower surface of the supporting block is fixedly connected to a compression spring, the lower surface of the compression spring is fixedly connected to the inner surface of the baffle through a movable groove, and the movable groove is opened in the wall of the baffle, and a vibration groove is opened in the wall of the baffle, and the inner surface of the baffle is slidably connected to the connecting block through the vibration groove, the outer surface of the cam contacts the outer surface of the rotating block, the outer surface of the rotating block is rotatably connected to the inner surface of the connecting block, the outer surface of the connecting block is fixedly connected to the outer surface of the screening net, and the outer surface of the support block is slidably connected to the inner surface of the baffle through the movable groove, and by setting the movable groove and the vibration groove, the displacement direction of the two ends of the rotating block is limited, so that the rotating block forces the screening net to shake, thereby making the screening process of the screening device more stable.

[0007] The beneficial effects of the utility model are as follows:

[0008] 1. The utility model arranges a push column to rotate, so that the seeds blocking the entrance are scattered and pushed and spread onto the screening net, and the large-grain seeds blocking the screening holes at the bottom of the accumulated seeds are pushed, so that the large-grain seeds no longer block the screening net from screening seeds.

[0009] 2. The utility model sets a cam to drive the rotating block to move, and sets a movable groove and a vibration groove to limit the displacement direction of the two ends of the rotating block, so that the rotating block forces the screening net to shake, thereby making the screening process of the screening device more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is the front view of the utility model;

[0011] Figure 2 It is a cross-sectional view of the utility model;

[0012] Figure 3It is a schematic diagram of the local structure of the support frame of the utility model;

[0013] Figure 4 It is a schematic diagram of the structure of the utility model at A;

[0014] Figure 5 It is a schematic diagram of the local structure on the baffle of the utility model;

[0015] Figure 6 It is a structural schematic diagram of B of the utility model.

[0016] In the figure: 1. support frame; 2. protection plate; 3. baffle; 4. feed chute; 5. fixed block; 6. rotating plate; 7. servo motor; 8. transmission belt; 9. rotating shaft; 10. push column; 11. screening net; 51. sliding groove; 52. first magnetic sheet; 53. second magnetic sheet; 91. cam; 92. rotating block; 93. connecting column; 94. support block; 95. compression spring; 96. movable groove; 97. vibration groove; 98. connecting block; 111. first magnetic strip; 112. second magnetic strip. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0018] Example: See Figure 1 - Figure 6The utility model provides a technical solution: a seed screening device for agricultural technology promotion, comprising: a support frame 1, the support frame 1 is used to support the screening device assembly; a baffle 3, the baffle 3 is used to prevent seeds from flying out of the screening device; a screening net 11; the screening net 11 is used to separate seeds of different sizes; the screening device also includes: a protective plate 2, the outer surface of the protective plate 2 is fixedly connected to the outer surface of the baffle 3, the top of the outer surface of the baffle 3 is fixedly connected with a feed trough 4, the lower surface of the feed trough 4 is fixedly connected with a fixed block 5, the inner surface of the fixed block 5 is rotatably connected with a rotating plate 6, the outside of the rotating plate 6 is provided with a servo motor 7, the output end of the servo motor 7 is fixedly connected with a rotating shaft 9, the outer surface of the rotating shaft 9 The surface is rotatably connected with a transmission belt 8, the outer surface of the rotating shaft 9 is fixedly connected with a pushing column 10, the inner wall of the protective plate 2 is fixedly connected to the outer surface of the servo motor 7, the outer surface of the rotating shaft 9 is rotatably connected to the inner surface of the baffle 3, and the inner surface of the support frame 1 is slidably connected to the outer surface of the screening net 11. When seeds are accumulated on the screening net 11, the servo motor 7 in the protective plate 2 is started, and the servo motor 7 drives the rotating shaft 9 of the second layer to rotate, and the first layer rotating shaft 9 and the third layer rotating shaft 9 of the screening device are rotated through the transmission belt 8, so that the rotating shaft 9 drives the pushing column 10 to rotate, so that the curved surface on the pushing column 10 pushes the accumulated seeds, so that the seeds are pushed toward the fixed block 5, so that the seeds can be spread flat on the screening net 11.

[0019] A sliding groove 51 is provided in the wall of the fixed block 5, and a first magnetic sheet 52 is fixedly connected to the inner surface of the fixed block 5 through the sliding groove 51. A second magnetic sheet 53 is arranged outside the first magnetic sheet 52, and an outer surface of the second magnetic sheet 53 is fixedly connected to the outer surface of the screening net 11. The outer surface of the screening net 11 is slidably connected to the inner surface of the fixed block 5 through the sliding groove 51. A first magnetic strip 111 is fixedly connected to the outer surface of the screening net 11, and a second magnetic strip 112 is fixedly connected to the inner surface of the support frame 1. The first magnetic strip 111 on the support frame 1 and the second magnetic strip 112 on the support frame 1 have opposite surfaces with the same magnetic poles. Similarly, the other end of the screening net 11 is slidably connected on the fixed block 5, and the second magnetic piece 53 on the screening net 11 and the first magnetic piece 52 in the sliding groove 51 are also arranged to have opposite surfaces with the same magnetic poles. When the pushing column 10 pushes the seeds to be spread flat on the screening net 11, the friction of the seeds will cause the screening net 11 to move. Due to the repulsive force at both ends of the screening net 11, the screening net 11 shakes more frequently.

[0020] The outer surface of the rotating shaft 9 is fixedly connected with a cam 91, the outer surface of the cam 91 is rotatably connected to the inner surface of the baffle 3, the inner surface of the baffle 3 is slidably connected with a rotating block 92, the outer surface of the rotating block 92 is rotatably connected with a connecting column 93, the lower surface of the connecting column 93 is rotatably connected with a supporting block 94, the lower surface of the supporting block 94 is fixedly connected with a compression spring 95, the lower surface of the compression spring 95 is fixedly connected with the inner surface of the baffle 3 through a movable groove 96, and the movable groove 96 is opened in the wall of the baffle 3, a vibration groove 97 is opened in the wall of the baffle 3, and the inner surface of the baffle 3 is slidably connected with a connecting block 98 through the vibration groove 97, the outer surface of the cam 91 contacts the outer surface of the rotating block 92, and the outer surface of the rotating block 92 rotates with the inner surface of the connecting block 98 The outer surface of the connecting block 98 is fixedly connected to the outer surface of the screening net 11, and the outer surface of the supporting block 94 is slidingly connected to the inner surface of the baffle 3 through the movable groove 96. When the rotating block 92 is pushed down by the cam 91, the connecting block 98 rotatably connected at the other end of the rotating block 92 will be restricted to move on the slot of the movable groove 96 because the rotating block 92 is restricted to move on the slot of the movable groove 96, so that the rotating block 92 pushes the connecting block 98 in the direction away from the movable groove 96 and moves along the vibration groove 97. The connecting block 98 will push the screening net 11 to move. When the convex point position of the cam 91 no longer contacts the rotating block 92, the compression spring 95 will drive the end of the rotating block 92 away from the connecting block 98 to rise, thereby pulling the connecting block 98 to move toward the movable groove 96, thereby achieving the purpose of vibrating the screening net 11.

[0021] Working principle:

[0022] When in use, the seeds to be screened are poured into the box surrounded by the support frame 1, the baffle plate 3, the fixed block 5 and the rotating plate 6 through the feed trough 4, and fall on the screening net 11. When the seeds are accumulated on the screening net 11, the servo motor 7 in the protection plate 2 is started, and the servo motor 7 drives the rotating shaft 9 of the second layer to rotate, and the first layer rotating shaft 9 and the third layer rotating shaft 9 of the screening device are rotated through the transmission belt 8, so that the rotating shaft 9 drives the pushing column 10 to rotate, and the curved surface on the pushing column 10 pushes the accumulated seeds, so that the seeds are pushed toward the fixed block 5, so that the seeds can be spread flat on the screening net 11. The screening net 11 is slidably connected to the support frame 1, and the opposing surfaces of the first magnetic strip 111 on the screening net 11 and the second magnetic strip 112 on the support frame 1 are the same magnetic poles. Similarly, the other end of the screening net 11 is slidably connected to the fixed block 5, and the second magnetic piece 53 on the screening net 11 and the first magnetic piece 52 in the sliding groove 51 are also arranged to have the same magnetic poles on the opposing surfaces. When the pushing column 10 pushes the seeds to be spread flat on the screening net 11, the friction of the seeds will cause the screening net 11 to move. Due to the repulsive force at both ends of the screening net 11, the screening net 11 shakes more frequently, thereby screening the seeds.

[0023] A cam 91 is provided on the rotating shaft 9. The cam 91 will squeeze the rotating block 92 in the process of following the rotating shaft 9 to rotate. Since the connecting column 93 on the rotating block 92 is on the supporting block 94, and the supporting block 94 is always in a state of squeezing the compression spring 95, the upward force of the compression spring 95 will make the supporting block 94 tend to move upward. The supporting block 94 will drive the connecting column 93 to push the rotating block 92 to move upward, so that the surface of the cam 91 is always in contact with the upper surface of the rotating block 92. When the rotating block 92 is pushed down by the cam 91, the other end of the rotating block 92 The rotatably connected connecting block 98 will, because the rotating block 92 is restricted from moving on the slot of the movable slot 96, cause the rotating block 92 to push the connecting block 98 in the direction away from the movable slot 96 and move along the vibration slot 97. The connecting block 98 will push the screening net 11 to move. When the convex point position of the cam 91 no longer contacts the rotating block 92, the compression spring 95 will drive the end of the rotating block 92 away from the connecting block 98 to rise, thereby pulling the connecting block 98 toward the movable slot 96, thereby achieving the purpose of vibrating the screening net 11 and making the vibration of the screening net 11 more stable.

[0024] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A seed screening device for agricultural technology promotion, comprising: A support frame (1), the support frame (1) being used to support a screening device assembly; A baffle (3), the baffle (3) is used to prevent seeds from flying out of the screening device; A screening net (11); the screening net (11) is used to separate seeds of different sizes; Characterized in that the screening device also includes: A protective plate (2), the outer surface of the protective plate (2) is fixedly connected to the outer surface of the baffle (3), the top of the outer surface of the baffle (3) is fixedly connected to a feed trough (4), the lower surface of the feed trough (4) is fixedly connected to a fixed block (5), the inner surface of the fixed block (5) is rotatably connected to a rotating plate (6), a servo motor (7) is arranged outside the rotating plate (6), the output end of the servo motor (7) is fixedly connected to a rotating shaft (9), the outer surface of the rotating shaft (9) is rotatably connected to a transmission belt (8), and the outer surface of the rotating shaft (9) is fixedly connected to a push column (10).

2. The seed screening device for agricultural technology promotion according to claim 1, characterized in that: The inner wall of the protection plate (2) is fixedly connected to the outer surface of the servo motor (7), the outer surface of the rotating shaft (9) is rotatably connected to the inner surface of the baffle (3), and the inner surface of the support frame (1) is slidably connected to the outer surface of the screening net (11).

3. The seed screening device for agricultural technology promotion according to claim 1, characterized in that: A sliding groove (51) is provided in the wall of the fixed block (5), and a first magnetic sheet (52) is fixedly connected to the inner surface of the fixed block (5) via the sliding groove (51), and a second magnetic sheet (53) is provided outside the first magnetic sheet (52).

4. The seed screening device for agricultural technology promotion according to claim 3, characterized in that: The outer surface of the second magnetic sheet (53) is fixedly connected to the outer surface of the screening net (11), and the outer surface of the screening net (11) is slidably connected to the inner surface of the fixed block (5) via the sliding groove (51).

5. The seed screening device for agricultural technology promotion according to claim 1, characterized in that: The outer surface of the screening net (11) is fixedly connected to a first magnetic strip (111), and the inner surface of the support frame (1) is fixedly connected to a second magnetic strip (112).

6. The seed screening device for agricultural technology promotion according to claim 1, characterized in that: The outer surface of the rotating shaft (9) is fixedly connected with a cam (91), the outer surface of the cam (91) is rotatably connected to the inner surface of the baffle (3), the inner surface of the baffle (3) is slidably connected with a rotating block (92), the outer surface of the rotating block (92) is rotatably connected with a connecting column (93), the lower surface of the connecting column (93) is rotatably connected with a supporting block (94), the lower surface of the supporting block (94) is fixedly connected with a compression spring (95), the lower surface of the compression spring (95) is fixedly connected with the inner surface of the baffle (3) through a movable groove (96), and the movable groove (96) is provided in the wall of the baffle (3), a vibration groove (97) is provided in the wall of the baffle (3), and the inner surface of the baffle (3) is slidably connected with a connecting block (98) through the vibration groove (97).

7. The seed screening device for agricultural technology promotion according to claim 6, characterized in that: The outer surface of the cam (91) contacts the outer surface of the rotating block (92), and the outer surface of the rotating block (92) is rotatably connected to the inner surface of the connecting block (98).

8. The seed screening device for agricultural technology promotion according to claim 6, characterized in that: The outer surface of the connecting block (98) is fixedly connected to the outer surface of the screening net (11), and the outer surface of the supporting block (94) is slidably connected to the inner surface of the baffle (3) via a movable groove (96).

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