Seed screening machine for crop breeding

Abstract

The utility model discloses a seed screening machine for crop breeding, which comprises a dust removal component, the dust removal component comprises a hopper, the bottom of the hopper is connected with an air bellow, and a fan is fixedly mounted on the side wall of the air bellow; the first-stage screening assembly comprises a first vibration box, a first screening plate is rotationally mounted at the top of the first vibration box, and the output end of the first screening plate is fixedly connected with a material guide plate; the first-stage screening assembly comprises a first vibration box and a first screening plate, the second-stage screening assembly comprises a second vibration box and a second screening plate, and the dust removal assembly, the first-stage screening assembly and the second-stage screening assembly work cooperatively, impurities on the surfaces of seeds are removed through cooperation of a draught fan and an air bellow, and then the seeds are screened in a classified mode through the two-stage vibration screening plate; the size and quality of the screened seeds are effectively ensured to meet breeding requirements, and the germination rate and survival rate of crops are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of seed screening machines, specifically a seed screening machine for crop breeding. Background Technology

[0002] In the field of crop breeding, seed screening is a crucial step in ensuring seed quality, directly impacting crop growth, development, and yield. Traditional seed screening methods, such as manual screening, are not only inefficient but also rely heavily on human experience, making it difficult to accurately judge seed quality. This can lead to inconsistent screening standards, thus affecting breeding outcomes. Some existing seed screening equipment is limited in function, only able to screen seeds by size, and cannot effectively remove dust and impurities adhering to the seed surface. These impurities may carry pathogens, affecting seed storage and subsequent germination. Furthermore, most screening equipment has limited precision, making multi-stage screening inconvenient and unable to meet the stringent seed quality requirements of modern agriculture. Utility Model Content

[0003] The purpose of this invention is to provide a seed screening machine for crop breeding, so as to solve the problem that the screening equipment mentioned in the background art has limited screening accuracy and is inconvenient for multi-level screening.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A seed screening machine for crop breeding includes:

[0006] A dust removal assembly, comprising a hopper, the bottom of which is connected to an air box, and a fan fixedly installed on the side wall of the air box;

[0007] A primary screening component, comprising a first vibrating box, a first screening plate rotatably mounted on the top of the first vibrating box, and a guide plate fixedly connected to the output end of the first screening plate;

[0008] A secondary screening component, comprising a second vibrating box and a second sieve plate.

[0009] In a preferred embodiment of this utility model, a groove is provided on the inner wall of the bottom end of the hopper, and a feeding plate is slidably connected in the groove. The feeding plate is used to adjust the discharge diameter of the hopper. The bellows is configured as a trapezoidal structure, and a fan is fixedly installed on the side wall of the bellows.

[0010] In a preferred embodiment of this utility model, a dust outlet is fixedly installed on the outer wall of the wind box away from the fan, a dust collection chamber is detachably inserted at the end of the dust outlet, a top cover is fixedly installed on the top outer wall of the dust collection chamber, and an exhaust port is provided on the top side wall of the dust collection chamber.

[0011] In a preferred embodiment of this utility model, a dust outlet is fixedly installed on the outer wall of the wind box away from the fan, a dust collection chamber is detachably inserted at the end of the dust outlet, a top cover is fixedly installed on the top outer wall of the dust collection chamber, and an exhaust port is provided on the top side wall of the dust collection chamber.

[0012] In a preferred embodiment of this utility model, the inner wall of the first vibrating box is rotatably connected to the first eccentric wheel shaft via a bearing, the side wall of the first vibrating box is fixedly installed with a first servo motor for driving the first eccentric wheel shaft, the bottom end of the first screening plate near the guide plate is rotatably connected to the top of the first vibrating box via a hinge, and the bottom end of the first screening plate away from the guide plate is rotatably connected to the top of the first vibrating box via a telescopic rod.

[0013] In a preferred embodiment of this utility model, the height of the second vibration box is lower than that of the first vibration box, and second support blocks are fixedly installed on both outer walls of the second vibration box and the inner wall of the bracket. The second support blocks are arranged in pairs, and a second spring is installed between the upper and lower second support blocks.

[0014] In a preferred embodiment of this utility model, the inner wall of the second vibration box is rotatably connected to the second eccentric wheel shaft via a bearing, the side wall of the second vibration box is fixedly installed with a second servo motor for driving the second eccentric wheel shaft, the bottom end of the second screening plate away from the first vibration box is rotatably connected to the top of the second vibration box via a hinge, and the bottom end of the second screening plate near the first vibration box is rotatably connected to the top of the second vibration box via a telescopic rod.

[0015] In a preferred embodiment of this utility model, the telescopic rod includes two rotating blocks arranged vertically. The lower rotating block is rotatably connected to a threaded adjusting block via a pin, and the upper rotating block is rotatably connected to a threaded adjusting rod via a pin. The threaded adjusting rod is threadedly connected to the inner wall of the rotating block, and a handwheel is fixedly installed on the outer wall of the threaded adjusting rod.

[0016] In a preferred embodiment of this utility model, the bottom of the first vibration box is provided with a first seed screening chamber, and the bottom outer wall of the second vibration box is provided with a second seed screening chamber. The aperture of the first sieve plate is larger than that of the second sieve plate for seed grading and screening.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0018] 1. This seed screening machine uses a dust removal component, a primary screening component, and a secondary screening component working together. First, a fan and a bellows work together to remove impurities from the seed surface. Then, two-stage vibrating sieve plates are used to grade and screen the seeds, effectively ensuring that the size and quality of the screened seeds meet the breeding requirements and improving the germination rate and survival rate of crops.

[0019] 2. The feed plate in the equipment can flexibly adjust the discharge diameter of the hopper to adapt to the screening needs of different types and states of seeds. The telescopic rod can adjust the tilt angle of the screening plate to control the seed screening speed and effect. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the main structure of a seed screening machine used for crop breeding.

[0022] Figure 2 This is a top view schematic diagram of the structure of a seed screening machine used for crop breeding.

[0023] Figure 3 This is a schematic diagram of the rear view structure of a seed screening machine used for crop breeding.

[0024] Figure 4 A schematic diagram of the exploded structure of a dust removal component in a seed screening machine for crop breeding.

[0025] Figure 5 This is a schematic diagram of the structure of a primary screening component in a seed screening machine for crop breeding.

[0026] Figure 6 This is a schematic diagram of the secondary screening component in a seed screening machine for crop breeding.

[0027] Figure 7 This is a schematic diagram of the telescopic rod structure in a seed screening machine used for crop breeding.

[0028] In the diagram: support frame 100, hopper 200, chute 210, feeding plate 220, air box 230, dust outlet 231, fan 232, dust collection bin 240, exhaust port 241, top cover 250, first vibrating box 300, first screening plate 310, guide plate 320, first eccentric wheel shaft 330, first servo motor 340, first support block 350, first spring 351, first seed screening bin 360, second vibrating box 400, second screening plate 410, second eccentric wheel shaft 420, second servo motor 430, second support block 440, second spring 441, second seed screening bin 450, rotating block 500, threaded adjusting block 510, threaded adjusting rod 520, handwheel 521. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] Example 1: As Figures 1-4 ,include:

[0031] The dust removal assembly includes a hopper 200, with a wind box 230 connected to the bottom of the hopper 200, and a fan 232 fixedly installed on the side wall of the wind box 230.

[0032] The primary screening component includes a first vibrating box 300, a first screening plate 310 rotatably mounted on the top of the first vibrating box 300, and a guide plate 320 fixedly connected to the output end of the first screening plate 310.

[0033] The secondary screening component includes a second vibrating box 400 and a second sieve plate 410.

[0034] The specific application scenario of this embodiment is as follows: In the dust removal assembly, the hopper 200 is used to store seeds to be screened. The bottom-connected air box 230 works in conjunction with the fan 232. The fan 232 generates airflow, which enters the hopper 200 from the air box 230, blowing up the dust and impurities attached to the seed surface and carrying them away with the airflow, thus achieving preliminary dust removal from the seeds. In the primary screening assembly, the first vibrating box 300 has a first sieve plate 310 rotatably mounted on top. When the equipment is running, the first vibrating box 300 vibrates, causing the first sieve plate 310 to vibrate, and the seeds are removed from the hopper. After entering the first sieve plate 310, under the action of vibration, impurities, small particles and unqualified seeds smaller than the sieve holes of the first sieve plate 310 pass through the sieve holes and fall down, while qualified seeds move along the surface of the first sieve plate 310 and finally enter the secondary screening component through the guide plate 320. The second vibration box 400 and the second sieve plate 410 of the secondary screening component receive the seeds after the first screening. The vibration of the second vibration box 400 causes the second sieve plate 410 to vibrate, which performs a second screening of the seeds and further removes the seeds that do not meet the requirements, thus completing the seed screening work.

[0035] Example 2: As Figures 5-7The bottom inner wall of the hopper 200 is provided with a groove 210, and a feeding plate 220 is slidably connected in the groove 210. The feeding plate 220 is used to adjust the discharge diameter of the hopper 200. The air box 230 is set with a trapezoidal structure. A fan 232 is fixedly installed on the side wall of the air box 230. A dust outlet 231 is fixedly installed on the outer wall of the side of the air box 230 away from the fan 232. A dust collection bin 240 is detachably inserted at the end of the dust outlet 231. A top cover 250 is fixedly installed on the top outer wall of the dust collection bin 240. An exhaust port 241 is provided on the top side wall of the dust collection bin 240.

[0036] The specific application scenario of this embodiment is as follows: The sliding groove 210 on the inner wall of the bottom of the hopper 200 and the feeding plate 220 form an adjustment structure. By sliding the feeding plate 220, the size of the discharge port of the hopper 200 can be changed, thereby controlling the feeding speed and flow rate of the seeds to adapt to different screening requirements. The wind box 230 has a trapezoidal structure. When the fan 232 on its side wall is working, airflow is formed in the wind box 230. Since the trapezoidal structure can optimize the airflow distribution, the seeds falling from the hopper 200 can come into full contact with the airflow. Dust and impurities are carried by the airflow to the dust outlet 231. The detachable and pluggable dust collection bin 240 can effectively collect dust and impurities. The top cover 250 facilitates cleaning the impurities in the dust collection bin 240. The exhaust port 241 on the top side wall can balance the air pressure inside and outside the dust collection bin 240 to ensure that the dust removal process is carried out smoothly.

[0037] Example 3: As Figure 5 and Figure 6First support blocks 350 are fixedly installed on both outer walls of the first vibrating box 300 and on the inner wall of the support 100. The first support blocks 350 are arranged in pairs, and a first spring 351 is installed between the upper and lower first support blocks 350. A first eccentric wheel shaft 330 is rotatably connected to the inner wall of the first vibrating box 300 via bearings. A first servo motor 340 for driving the first eccentric wheel shaft 330 is fixedly installed on the side wall of the first vibrating box 300. The bottom end of the first screening plate 310 near the guide plate 320 is rotatably connected to the top of the first vibrating box 300 via a hinge, and the bottom end of the first screening plate 310 away from the guide plate 320 is rotatably connected to the top of the first vibrating box 300 via a telescopic rod. The second vibrating box 400 is lower in height than the first vibrating box 300. Second support blocks 440 are fixedly installed on both outer walls of the second vibrating box 400 and on the inner wall of the support 100. The second support blocks 440 are arranged in pairs. The second spring 441 is installed between the upper and lower second support blocks 440. The inner wall of the second vibration box 400 is rotatably connected to the second eccentric wheel shaft 420 via a bearing. The side wall of the second vibration box 400 is fixedly installed with a second servo motor 430 for driving the second eccentric wheel shaft 420. The bottom end of the second screening plate 410 away from the first vibration box 300 is rotatably connected to the top of the second vibration box 400 via a hinge. The bottom end of the second screening plate 410 near the first vibration box 300 is rotatably connected to the top of the second vibration box 400 via a telescopic rod. The telescopic rod includes two rotating blocks 500 arranged vertically. The lower rotating block 500 is rotatably connected to a threaded adjusting block 510 via a shaft pin. The upper rotating block 500 is rotatably connected to a threaded adjusting rod 520 via a shaft pin. The threaded adjusting rod 520 is threadedly connected to the inner wall of the rotating block 500. A handwheel 521 is fixedly installed on the outer wall of the threaded adjusting rod 520.

[0038] The specific application scenario of this embodiment is as follows: The first support block 350 and the first spring 351 between the outer walls on both sides of the first vibration box 300 and the inner wall of the bracket 100 constitute an elastic support structure, providing buffer and elastic restoring force for the first vibration box 300. The first servo motor 340 drives the first eccentric wheel shaft 330 to rotate. The centrifugal force generated by the rotation of the eccentric wheel shaft causes the first vibration box 300 to vibrate, and the first sieve plate 310 vibrates accordingly. The tilt angle of the first sieve plate 310 can be changed by adjusting the telescopic rod, thereby controlling the movement speed and screening effect of the seeds on the sieve plate. Similarly, the second support block 440 and the second spring 441 on both sides of the second vibration box 400 play an elastic support role. The second servo motor 430 drives the second eccentric wheel shaft 420 to make the second vibration box 400 vibrate. The vibration of the second sieve plate 410 performs secondary screening of the seeds. The tilt angle can be adjusted by adjusting the telescopic rod below the second sieve plate 410, and the aperture of the first sieve plate 310 is larger than that of the second sieve plate 410.

[0039] Example 4: Figure 1 and Figure 2The bottom of the first vibration box 300 is provided with a first seed screening chamber 360, and the bottom outer wall of the second vibration box 400 is provided with a second seed screening chamber 450. The aperture of the first sieve plate 310 is larger than that of the second sieve plate 410 for seed grading and screening.

[0040] The specific application scenario of this embodiment is as follows: two-stage screening realizes the graded screening of seeds, and seeds of different specifications fall into the first seed screening chamber 360 and the second seed screening chamber 450 respectively.

[0041] The working principle of this utility model is as follows: In use, seeds are first placed into the hopper 200, and the discharge port diameter is adjusted by the feeding plate 220. The blower 232 generates airflow in the trapezoidal wind box 230, carrying away dust and impurities on the seed surface. The dust is collected in the dust collection bin 240 through the dust outlet 231. The dust-removed seeds enter the primary screening component. The first servo motor 340 drives the first eccentric wheel shaft 330, causing the first vibrating box 300 to drive the first sieve plate 310 to vibrate. Small particles and unqualified seeds pass through the sieve holes, while qualified seeds enter the secondary screening component through the guide plate 320. In the secondary screening, the second servo motor 430 drives the second eccentric wheel shaft 420, and the second vibrating box 400 drives the second sieve plate 410 to vibrate. Because the aperture of the first sieve plate 310 is larger than that of the second sieve plate 410, seed grading and screening are achieved, and seeds of different specifications fall into the corresponding screening bins.

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

Claims

1. A seed screening machine for crop breeding, characterized in that, include: A dust removal assembly, comprising a hopper (200), the bottom of which is connected to a blower box (230), and a fan (232) is fixedly installed on the side wall of the blower box (230); A primary screening component, comprising a first vibrating box (300), a first sieve plate (310) rotatably mounted on the top of the first vibrating box (300), and a guide plate (320) fixedly connected to the output end of the first sieve plate (310). A secondary screening component, comprising a second vibrating box (400) and a second sieve plate (410).

2. The seed screening machine for crop breeding according to claim 1, characterized in that, The bottom inner wall of the hopper (200) is provided with a groove (210), and a feeding plate (220) is slidably connected in the groove (210). The feeding plate (220) is used to adjust the discharge diameter of the hopper (200). The bellows (230) is configured as a trapezoidal structure, and a fan (232) is fixedly installed on the side wall of the bellows (230).

3. The seed screening machine for crop breeding according to claim 2, characterized in that, A dust outlet (231) is fixedly installed on the outer wall of the wind box (230) away from the fan (232). A dust collection chamber (240) is detachably inserted at the end of the dust outlet (231). A top cover (250) is fixedly installed on the top outer wall of the dust collection chamber (240). An exhaust port (241) is opened on the top side wall of the dust collection chamber (240).

4. The seed screening machine for crop breeding according to claim 1, characterized in that, First support blocks (350) are fixedly installed on both outer walls of the first vibration box (300) and the inner wall of the bracket (100). The first support blocks (350) are arranged in pairs, and a first spring (351) is installed between the upper and lower first support blocks (350).

5. A seed screening machine for crop breeding according to claim 4, characterized in that, The inner wall of the first vibrating box (300) is rotatably connected to the first eccentric wheel shaft (330) via a bearing. The side wall of the first vibrating box (300) is fixedly installed with a first servo motor (340) for driving the first eccentric wheel shaft (330). The bottom end of the first screening plate (310) near the guide plate (320) is rotatably connected to the top of the first vibrating box (300) via a hinge. The bottom end of the first screening plate (310) away from the guide plate (320) is rotatably connected to the top of the first vibrating box (300) via a telescopic rod.

6. A seed screening machine for crop breeding according to claim 1, characterized in that, The height of the second vibration box (400) is lower than that of the first vibration box (300). The outer walls on both sides of the second vibration box (400) and the inner wall of the bracket (100) are fixedly installed with second support blocks (440). The second support blocks (440) are arranged in pairs, and a second spring (441) is installed between the upper and lower second support blocks (440).

7. A seed screening machine for crop breeding according to claim 6, characterized in that, The inner wall of the second vibrating box (400) is rotatably connected to the second eccentric wheel shaft (420) via a bearing. The side wall of the second vibrating box (400) is fixedly installed with a second servo motor (430) for driving the second eccentric wheel shaft (420). The bottom end of the second screening plate (410) away from the first vibrating box (300) is rotatably connected to the top of the second vibrating box (400) via a hinge. The bottom end of the second screening plate (410) near the first vibrating box (300) is rotatably connected to the top of the second vibrating box (400) via a telescopic rod.

8. A seed screening machine for crop breeding according to claim 7, characterized in that, The telescopic rod includes two rotating blocks (500) arranged vertically. The lower rotating block (500) is rotatably connected to a threaded adjusting block (510) via a shaft pin. The upper rotating block (500) is rotatably connected to a threaded adjusting rod (520) via a shaft pin. The threaded adjusting rod (520) is threadedly connected to the inner wall of the rotating block (500). A handwheel (521) is fixedly installed on the outer wall of the threaded adjusting rod (520).

9. A seed screening machine for crop breeding according to claim 1, characterized in that, The first vibration box (300) has a first seed screening chamber (360) at its bottom, and the second vibration box (400) has a second seed screening chamber (450) on its bottom outer wall. The aperture of the first sieve plate (310) is larger than that of the second sieve plate (410) for seed grading and screening.

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