Agricultural grain seed screening device

Abstract

The utility model discloses an agricultural grain seed screening device, and relates to the technical field of seed screening. The vibrating screen comprises a support and a screen frame, the screen frame is located in the support, a connecting rod is rotationally installed between the support and the screen frame, a screen mesh is fixedly arranged in the screen frame, a discharging assembly is arranged on the support, and an intercepting assembly is arranged in the screen frame. Through vibration of the screen frame, seeds move on the screen, the blocking plate blocks the large seeds and moves along the blocking plate to be discharged from the second discharging hopper, and the small seeds penetrate through the lower portion of the blocking plate and are discharged from the first discharging hopper, so that the situation that the seeds are inconvenient to sort according to the size can be avoided, and the purpose of convenient screening is achieved; the discharging plate is driven by the outer side of the rotating shaft to move downwards, the discharging plate drives seeds in the storage hopper to move into the discharging hopper, and the seeds fall onto a screen of the screen frame from the discharging hopper, so that the seeds can be discharged uniformly, and the purpose of discharging conveniently is achieved.

Description

Technical Field

[0001] This utility model relates to the field of seed screening technology, specifically to an agricultural grain seed screening device. Background Technology

[0002] Grain seeds are mainly composed of four parts: husk, aleurone layer, endosperm and germ. Grain seeds include wheat, corn, rice, barley and so on. During the processing, grain seeds usually go through sorting, milling and other steps. In the sorting process, seeds generally need to be separated by a sieve device to remove impurities such as stones.

[0003] Most existing screening devices separate seeds by size through the sieve holes on the sieve. Different sieve holes require different sieves, but this cumbersome process reduces processing efficiency. Utility Model Content

[0004] In order to solve the problem that changing screens is cumbersome and affects processing efficiency, the purpose of this utility model is to provide an agricultural grain seed screening device.

[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: an agricultural grain seed screening device, including a support and a screen frame, wherein the screen frame is located inside the support, a connecting rod is rotatably installed between the support and the screen frame, a screen mesh is fixedly installed inside the screen frame, a feeding component is provided on the support, and an interception component is provided inside the screen frame, the interception component including a baffle plate, the baffle plate being located inside the screen frame and fitting against the upper surface of the screen mesh, a mirror-distributed sliding groove is formed on the inner wall of the screen frame, a slider is slidably engaged inside the sliding groove, two opposing sides of the sliders are respectively fixedly connected to the two ends of the baffle plate, a threaded rod is rotatably installed inside the sliding groove, one end of the threaded rod threaded through the slider, a mirror-distributed knob is movably inserted through the top of the screen frame, one end of the knob is fixedly connected to the top of the threaded rod, the knob drives the threaded rod to rotate, the threaded rod drives the slider to move in the sliding groove, the slider drives the baffle plate to move, and the adjustment of the baffle plate and the screen mesh The support frame has a gap to facilitate the interception of seeds of different sizes. A wheel is rotatably mounted on the inner side of the support frame, and a rotating rod is rotatably mounted on the outer side of the wheel. A crank is fixedly fitted on the outer side of the rotating rod, and one end of the crank is rotatably mounted on one end of the screen frame. The rotating rod can drive the crank to swing through the wheel, and the crank can cause the screen frame to vibrate. A first discharge hopper is fixedly mounted on one end of the screen frame, and the first discharge hopper is flush with the upper surface of the screen. A second discharge hopper is fixedly mounted on the side of the screen frame, and the second discharge hopper is aligned with one end of the baffle. Seeds of different sizes can be separated and discharged through the first and second discharge hoppers. A second motor is fixedly mounted on the outer side of the support frame. The end of the output shaft of the second motor moves through the support frame and is fixedly connected to the wheel. The second motor can provide power for the rotation of the wheel. A waste discharge hopper is fixedly mounted on one end of the screen frame, and the waste discharge hopper is located above the screen. The waste discharge hopper can facilitate the discharge of screened waste.

[0006] Preferably, the feeding assembly includes a storage hopper and a feeding hopper. The feeding hopper is located above the screen frame, and the top end of the feeding hopper is fixedly connected to the bottom end of the storage hopper. A rotating shaft is rotatably mounted on the inner wall of the feeding hopper. Feeding plates arranged in a circular array are fixedly mounted on the outer side of the rotating shaft. A first motor is fixedly mounted on the outer side of the feeding hopper. The end of the output shaft of the first motor movably passes through the feeding hopper and is fixedly connected to one end of the rotating shaft. The rotating shaft is driven to rotate by the end of the output shaft of the first motor, and the outer side of the rotating shaft drives the feeding plates to move downward. The feeding plates move the seeds in the storage hopper into the feeding hopper, and the seeds fall from the feeding hopper onto the screen of the screen frame. This facilitates uniform feeding. A fixing frame is fixedly mounted on the support, and the storage hopper is fixedly mounted on the fixing frame. The fixing frame facilitates the installation of the storage hopper. The top of the feeding hopper has an arc-shaped structure, and one side of the feeding plate fits against the inner wall of the feeding hopper. The arc-shaped structure facilitates cooperation with the feeding plate.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0008] 1. By vibrating the screen frame, the seeds move on the screen. The baffle intercepts the larger seeds and moves along the baffle to be discharged from the second hopper. The smaller seeds pass under the baffle and are discharged from the first hopper. This avoids the inconvenience of sorting the seeds by size, thus achieving the purpose of convenient screening.

[0009] 2. The outer side of the rotating shaft drives the feeding plate to move downwards. The feeding plate moves the seeds in the storage hopper into the feeding hopper. The seeds fall from the feeding hopper onto the screen of the screen frame. This can distribute the seeds evenly and make feeding convenient. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 for Figure 1 Enlarged view of the structure of A in the middle.

[0013] Figure 3 This is a schematic diagram of the sieve frame and its connection structure of the present invention.

[0014] Figure 4 This is a cross-sectional schematic diagram of the material feeding component structure of this utility model.

[0015] Figure 5 This is a schematic diagram of the crank arm and its connecting structure of this utility model.

[0016] In the diagram: 1. Support; 2. Interception assembly; 21. Baffle plate; 22. Slide groove; 23. Slider; 24. Threaded rod; 25. Knob; 3. Screen frame; 4. Connecting rod; 5. Screen mesh; 6. Feeding assembly; 61. Storage hopper; 62. Feeding hopper; 63. Rotating shaft; 64. Feeding plate; 65. First motor; 7. Crank rod; 8. Rotating rod; 9. Wheel; 10. First discharge hopper; 11. Second discharge hopper; 12. Waste discharge hopper; 13. Second motor; 14. Fixing frame. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example: Figure 1-5 As shown, this utility model provides an agricultural grain seed screening device, including a support 1 and a screen frame 3. The screen frame 3 is located inside the support 1, and a connecting rod 4 is rotatably installed between the support 1 and the screen frame 3. A screen 5 is fixedly installed inside the screen frame 3. A feeding assembly 6 is provided on the support 1, and an interception assembly 2 is provided inside the screen frame 3. The interception assembly 2 includes a baffle 21, which is located inside the screen frame 3 and fits against the upper surface of the screen 5. The inner wall of the screen frame 3 has mirror-distributed sliding grooves 22, and the grooves 22 slide inside. The screen 5 is equipped with two sliders 23, with one side of each slider 23 fixedly connected to the two ends of the baffle plate 21. A threaded rod 24 rotates inside the slide groove 22, with one end of the threaded rod 24 threaded through the slider 23. A mirror-distributed knob 25 moves through the top of the screen frame 3, with one end of the knob 25 fixedly connected to the top of the threaded rod 24. The knob 25 rotates the threaded rod 24, causing the slider 23 to move within the slide groove 22. The slider 23 then moves the baffle plate 21, adjusting the distance between the baffle plate 21 and the screen 5. The gaps allow for easy interception of seeds of different sizes. A wheel 9 is rotatably mounted on the inner side of the support 1, and a rotating rod 8 is rotatably mounted on the outer side of the wheel 9. A crank rod 7 is fixedly fitted onto the outer side of the rotating rod 8. One end of the crank rod 7 is rotatably mounted on one end of the sieve frame 3. The rotating rod 8, via the wheel 9, drives the crank rod 7 to swing, causing the sieve frame 3 to vibrate. A first hopper 10 is fixedly mounted on one end of the sieve frame 3, flush with the upper surface of the screen 5. A second hopper is fixedly mounted on the side of the sieve frame 3. 11. The second hopper 11 is aligned with one end of the baffle 21. Seeds of different sizes can be separated and discharged through the first hopper 10 and the second hopper 11. A second motor 13 is fixedly installed on the outside of the support 1. The end of the output shaft of the second motor 13 moves through the support 1 and is fixedly connected to the wheel 9. The second motor 13 can provide power for the rotation of the wheel 9. A waste discharge hopper 12 is fixedly installed at one end of the screen frame 3. The waste discharge hopper 12 is located above the screen 5. The waste discharge hopper 12 can conveniently discharge the screened waste.

[0019] The feeding assembly 6 includes a storage hopper 61 and a feeding hopper 62. The feeding hopper 62 is located above the screen frame 3. The top end of the feeding hopper 62 is fixedly connected to the bottom end of the storage hopper 61. A rotating shaft 63 is rotatably mounted on the inner wall of the feeding hopper 62. Feeding plates 64 arranged in a circular array are fixedly mounted on the outer side of the rotating shaft 63. A first motor 65 is fixedly mounted on the outer side of the feeding hopper 62. The end of the output shaft of the first motor 65 movably passes through the feeding hopper 62 and is fixedly connected to one end of the rotating shaft 63. The rotating shaft 63 is driven to rotate by the end of the output shaft of the first motor 65. The outer side of shaft 63 drives the feeding plate 64 to move downward. The feeding plate 64 drives the seeds in the storage hopper 61 to move into the feeding hopper 62. The seeds fall from the feeding hopper 62 onto the screen 5 of the screen frame 3, which facilitates uniform feeding. A fixing frame 14 is fixedly provided on the bracket 1. The storage hopper 61 is fixedly installed on the fixing frame 14. The fixing frame 14 makes it easy to install the storage hopper 61. The top of the feeding hopper 62 has an arc-shaped structure. One side of the feeding plate 64 fits against the inner wall of the feeding hopper 62. The arc-shaped structure facilitates cooperation with the feeding plate 64.

[0020] Working principle: First, add seeds into the storage hopper 61, then turn knob 25. Knob 25 drives threaded rod 24 to rotate, which in turn drives slider 23 to move within groove 22. Slider 23 drives baffle 21 to move, adjusting the gap between baffle 21 and screen 5 to easily intercept seeds of different sizes. Then, start the first motor 65, which drives the output shaft of the first motor 65 to rotate the rotating shaft 63. The outer side of the rotating shaft 63 drives the feed plate 64 to move downwards, which in turn moves the seeds from storage hopper 61 into feed hopper 62. The seeds fall from feed hopper 62 onto screen 5 of screen frame 3. At the same time, start the second motor. 13, which causes the second motor 13 to start working. The end of the output shaft of the second motor 13 drives the wheel 9 to rotate. The wheel 9 drives the crank 7 to swing through the rotating rod 8. The crank 7 drives the screen frame 3 to vibrate, causing the seeds and impurities to vibrate on the screen 5 and move towards the first discharge hopper 10. The gravel and other impurities in the seeds fall to the bottom of the screen frame 3 through the vibration of the screen 5. The gravel and other impurities are discharged from the waste discharge hopper 12 through the vibration of the screen frame 3. When the seeds move to the baffle 21, the smaller seeds pass under the baffle 21 and are discharged from the first discharge hopper 10. The baffle 21 intercepts the larger seeds and moves along the baffle 21 to be discharged from the second discharge hopper 11. This makes it convenient to sort seeds of different sizes.

[0021] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An agricultural grain seed screening device, comprising a support (1) and a screen frame (3), characterized in that: The screen frame (3) is located inside the support (1). A connecting rod (4) is rotatably installed between the support (1) and the screen frame (3). A screen mesh (5) is fixedly installed inside the screen frame (3). A feeding assembly (6) is provided on the support (1). An interception assembly (2) is provided inside the screen frame (3). The interception assembly (2) includes a baffle plate (21). The baffle plate (21) is located inside the screen frame (3) and is attached to the upper surface of the screen mesh (5). A mirror-shaped opening is provided on the inner wall of the screen frame (3). The slide groove (22) is distributed in a sliding manner. The slide groove (22) is equipped with a slider (23) inside. The two sliders (23) are fixedly connected to the two ends of the baffle (21) on opposite sides. The slide groove (22) has a threaded rod (24) rotating inside. One end of the threaded rod (24) is threaded through the slider (23). The top of the screen frame (3) is movably connected to a mirror-distributed knob (25). One end of the knob (25) is fixedly connected to the top of the threaded rod (24).

2. The agricultural grain seed screening device as described in claim 1, characterized in that, The feeding assembly (6) includes a storage hopper (61) and a feeding hopper (62). The feeding hopper (62) is located above the screen frame (3). The top end of the feeding hopper (62) is fixedly connected to the bottom end of the storage hopper (61). A rotating shaft (63) is rotatably installed on the inner wall of the feeding hopper (62). Feeding plates (64) arranged in a ring array are fixedly provided on the outer side of the rotating shaft (63). A first motor (65) is fixedly provided on the outer side of the feeding hopper (62). The end of the output shaft of the first motor (65) moves through the feeding hopper (62) and is fixedly connected to one end of the rotating shaft (63).

3. The agricultural grain seed screening device as described in claim 1, characterized in that, A wheel (9) is rotatably mounted on the inner side of the bracket (1), and a rotating rod (8) is rotatably mounted on the outer side of the wheel (9). A crank rod (7) is fixedly sleeved on the outer side of the rotating rod (8), and one end of the crank rod (7) is rotatably mounted on one end of the screen frame (3).

4. The agricultural grain seed screening device as described in claim 1, characterized in that, One end of the sieve frame (3) is fixedly provided with a first discharge hopper (10), which is flush with the upper surface of the sieve mesh (5). The side of the sieve frame (3) is fixedly provided with a second discharge hopper (11), which is aligned with one end of the baffle plate (21).

5. The agricultural grain seed screening device as described in claim 3, characterized in that, A second motor (13) is fixedly mounted on the outside of the bracket (1). The end of the output shaft of the second motor (13) passes through the bracket (1) and is fixedly connected to the wheel (9).

6. The agricultural grain seed screening device as described in claim 2, characterized in that, A fixed frame (14) is fixedly provided on the support (1), and the storage hopper (61) is fixedly installed on the fixed frame (14).

7. The agricultural grain seed screening device as described in claim 1, characterized in that, One end of the screen frame (3) is fixedly provided with a waste discharge hopper (12), which is located above the screen (5).

8. The agricultural grain seed screening device as described in claim 2, characterized in that, The top of the hopper (62) is an arc-shaped structure, and one side of the feeding plate (64) is attached to the inner wall of the hopper (62).

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