Screening device for corn breeding

Abstract

The utility model discloses a corn breeding screening device which comprises an installation frame, two fixing frames are fixedly connected to the inner wall of the installation frame, the two fixing frames are respectively distributed up and down, screening assemblies are installed on the upper surfaces of the fixing frames, an auxiliary assembly is correspondingly installed below each screening assembly, and the auxiliary assemblies are connected with the installation frame. And the auxiliary assembly is installed on the inner wall of the fixing frame, a material storage box is installed at the top of the installation frame, and a discharging assembly is installed in the material storage box. By means of the two screening frames which are distributed up and down, corn seeds can be subjected to multi-stage screening, meanwhile, seeds and impurities which cannot meet the planting requirement are separated out, and the requirement for fine grading of the seeds in the corn breeding process is met.

Description

Technical Field

[0001] This utility model relates to the field of maize breeding technology, specifically a screening device for maize breeding. Background Technology

[0002] Corn is a high-quality food crop with high nutritional value. Before planting corn, screening corn seeds using a screening device is a key step to ensure seed quality and improve corn survival rate and quality.

[0003] Most small corn screening devices on the market currently have a single-stage screening function, which can only simply distinguish between qualified seeds and impurities. They cannot grade corn based on the quality differences of seeds, making it difficult to meet the needs of fine seed screening in the breeding process. Moreover, during screening, corn seeds tend to accumulate in the screening box, affecting screening efficiency.

[0004] Therefore, a screening device for maize breeding is needed to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a screening device for maize breeding.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a screening device for corn breeding, comprising a mounting frame, two fixed frames fixedly connected to the inner wall of the mounting frame, the two fixed frames being distributed vertically, a screening component mounted on the upper surface of the fixed frame, an auxiliary component mounted below each screening component, the auxiliary component being mounted on the inner wall of the fixed frame, a storage box mounted on the top of the mounting frame, and a feeding component mounted inside the storage box.

[0007] Preferably, in the above-mentioned screening device for maize breeding, the screening component includes a screening frame, which is disposed above a fixed frame. A screen is installed on the inner wall of the screening frame. Two sets of telescopic rods are fixedly connected to the bottom surface of the screening frame. The lower ends of the two sets of telescopic rods are fixedly connected to the upper surface of the fixed frame. A spring is sleeved on the outer surface of the two sets of telescopic rods.

[0008] Preferably, in the above-mentioned screening device for maize breeding, the auxiliary component includes a fixed frame, the fixed frame is fixedly connected to the inner wall of a fixed frame, a top rod is slidably connected to the inner wall of the fixed frame, the upper end of the top rod is in contact with the bottom surface of the screening frame, a connecting plate is fixedly connected to the lower end of the top rod, a spring is sleeved on the outer surface of the top rod, a limiting slide rod is fixedly connected to the inner top wall of the fixed frame, and the connecting plate is slidably connected to the outer surface of the limiting slide rod.

[0009] Preferably, in the above-mentioned screening device for maize breeding, a motor housing is fixedly connected to the outer side of the fixed frame, a motor is fixedly connected inside the motor housing, the output end of the motor extends to the inner side of the fixed frame, and an elliptical block is fixedly connected to the output end of the motor, the elliptical block being in contact with the bottom surface of the connecting plate.

[0010] Preferably, in the above-mentioned screening device for corn breeding, the feeding component includes a fixed plate, which is fixedly connected to the top of the storage box. A second motor housing is fixedly connected to the upper surface of the fixed plate, and a second motor is fixedly connected inside the second motor housing. A rotating rod is fixedly connected to the output end of the second motor. The lower end of the rotating rod passes through the inner wall of the fixed plate and extends to the inner side of the storage box. A spiral conveyor plate is fixedly connected to the outer surface of the rotating rod.

[0011] Preferably, in the screening device for corn breeding described above, a feeding pipe is installed on the bottom surface of the storage box, and the spiral conveyor plate is located inside the feeding pipe.

[0012] The beneficial effects of this utility model are as follows: Through the cooperation between the screening component and the auxiliary component, the elliptical block, the connecting plate, the limiting slide rod, and the first spring can drive the top rod to reciprocate to strike the screening frame. Then, through the cooperation of the telescopic rod and the first spring, the screening frame is continuously shaken, which effectively avoids the accumulation of corn seeds in the screening frame and greatly improves the screening efficiency. Moreover, through the two screening frames distributed at the top and bottom, corn seeds can be screened in multiple stages, and seeds and impurities that do not meet the planting requirements can be separated. This meets the needs of fine grading of seeds in the corn breeding process and provides a strong guarantee for the cultivation of high-quality corn varieties. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the internal structure of the present invention;

[0014] Figure 2 This is a perspective view of the present utility model;

[0015] Figure 3 This is a schematic diagram of the installation structure of the screening component and auxiliary component of this utility model;

[0016] Figure 4 This is a schematic diagram of the internal structure of the auxiliary component of this utility model:

[0017] Figure 5 This is a schematic diagram of the installation structure of the storage box and feeding assembly of this utility model.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 1. Mounting frame, 2. Fixing frame, 3. Screening assembly, 301. Screening frame, 302. Screen, 303. Telescopic rod, 304. Spring 1, 4. Auxiliary assembly, 401. Fixing frame, 402. Top rod, 403. Connecting plate, 404. Spring 2, 405. Limiting slide bar, 406. Motor housing 1, 407. Motor 1, 408. Elliptical block, 5. Storage box, 6. Discharge assembly, 601. Fixing plate, 602. Motor housing 2, 603. Motor 2, 604. Rotating rod, 605. Screw conveyor plate, 7. Discharge pipe. Detailed Implementation

[0020] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0021] like Figures 1-5 As shown, a screening device for maize breeding includes a mounting frame 1. Two fixed frames 2 are fixedly connected to the inner wall of the mounting frame 1, positioned vertically. Screening components 3 are mounted on the upper surface of each fixed frame 2, and auxiliary components 4 are mounted on the inner wall of each fixed frame 2. The two auxiliary components 4 are located below the two screening components 3. A storage bin 5 is mounted on the top of the mounting frame 1, and a feeding component 6 is installed inside the storage bin 5.

[0022] Mounting frame 1 serves as the basic support structure for the entire device, providing a framework for mounting and securing other components. Mounting frame 2 is used to install screening components 3 and auxiliary components 4. Two screening components 3, arranged vertically, perform the core function of screening and grading corn seeds. The two auxiliary components 4 provide vibration power to the two screening components 3, assisting in the screening process. Storage bin 5 temporarily stores the corn seeds to be screened. Feeding component 6 uniformly transports the corn seeds from storage bin 5 to the upper screening components 3, ensuring continuous screening.

[0023] The screening component 3 includes a screening frame 301, which is positioned above the fixed frame 2. A screen 302 is installed on the inner wall of the screening frame 301, and two sets of telescopic rods 303 are fixedly connected to the bottom surface of the screening frame 301. The lower ends of both sets of telescopic rods 303 are fixedly connected to the upper surface of the fixed frame 2, and springs 304 are fitted onto the outer surfaces of both sets of telescopic rods 303. The screening frame 301 is a container for screening corn seeds. The screens 302 in the two screening components 3 have different mesh sizes to separate corn seeds and impurities of different qualities. When the screening frame 301 is subjected to external force, the telescopic rods 303 and springs 304 can extend and retract, allowing it to vibrate vertically.

[0024] Auxiliary component 4 includes a fixing frame 401, which is fixedly connected to the inner wall of the fixing frame 2. A top rod 402 is slidably connected to the inner wall of the fixing frame 401. The upper end of the top rod 402 is in contact with the bottom surface of the screening frame 301, and a connecting plate 403 is fixedly connected to the lower end of the top rod 402. A spring 404 is sleeved on the outer surface of the top rod 402. A limiting slide rod 405 is fixedly connected to the inner top wall of the fixing frame 401, and the connecting plate 403 is slidably connected to the outer surface of the limiting slide rod 405. The fixing frame 401 provides an installation base for other parts of the auxiliary component 4. The fixed frame 401 is slidably connected to the top rod 402. The up and down movement of the top rod 402 pushes the screening frame 301, causing it to vibrate. When the top rod 402 is pushed up, the second spring 404 is compressed by the connecting plate 403. When the top rod 402 loses the pushing force, the elastic restoring force of the second spring 404 can reset the top rod 402. The limiting slide bar 405 can limit the movement trajectory of the connecting plate 403, ensuring that the connecting plate 403 and the top rod 402 can move stably in the vertical direction, and ensuring that the top rod 402 can stably push the screening frame 301.

[0025] A motor housing 406 is fixedly connected to the outer side of the fixed frame 401. A motor 407 is fixedly connected inside the motor housing 406, and the output end of the motor 407 extends to the inner side of the fixed frame 401. An elliptical block 408 is fixedly connected to the output end of the motor 407, and the elliptical block 408 is in contact with the bottom surface of the connecting plate 403. The motor housing 406 is used to protect the internal motor 407. The motor 407 is the power source of the auxiliary component 4. The elliptical block 408 can rotate under the drive of the motor 407. By contacting and pressing with the bottom surface of the connecting plate 403, it can drive the connecting plate 403 and the push rod 402 to move up and down reciprocally, thereby pushing the screening frame 301 to shake.

[0026] The feeding assembly 6 includes a fixing plate 601, which is fixedly connected to the top of the storage box 5. A motor housing 602 is fixedly connected to the upper surface of the fixing plate 601. A motor 603 is fixedly connected inside the motor housing 602. A rotating rod 604 is fixedly connected to the output end of the motor 603. The lower end of the rotating rod 604 passes through the inner wall of the fixing plate 601 and extends to the inner side of the storage box 5. A spiral conveying plate 605 is fixedly connected to the outer surface of the rotating rod 604. A feeding pipe 7 is installed on the bottom surface of the storage box 5. The spiral conveying plate 605 is located inside the feeding pipe 7. The fixing plate 601 is used to install the motor housing 602 and the rotating rod 604 to ensure the stable installation of each part in the feeding assembly 6. The motor housing 602 is used to protect the internal motor 603. By starting the motor 603, the rotating rod 604 can be driven to rotate, and the spiral conveyor plate 605 will rotate accordingly. The spiral conveyor plate 605 can push the corn seeds in the storage box 5 to the feeding pipe 7 through the spiral motion, and the corn seeds can be conveyed at a uniform speed through the feeding pipe 7.

[0027] Working principle: During use, corn seeds are poured into the storage bin 5. The second motor 603 in the feeding assembly 6 is started, driving the rotating rod 604 and the spiral conveyor 605 to rotate. Under the action of the spiral conveyor 605, the corn is pushed at a uniform speed to the feeding pipe 7 and discharged orderly into the screening frame 301 of the upper screening assembly 3. Simultaneously, the first motor 407 in the auxiliary assembly 4 is started, driving the elliptical block 408 to start rotating. During the rotation, the elliptical block 408 contacts and presses against the bottom surface of the connecting plate 403, pushing the connecting plate 403 upward along the limiting slide rod 405. The top rod 402 moves upward accordingly, lifting the screening frame 301. At this time, the telescopic rod 303 and the first spring 304 are stretched, and the second spring 404 is compressed. When the elliptical block 408 rotates until it no longer presses against the connecting plate 403, under the elastic force of the second spring 404, the top rod 402 is driven through the connecting plate 403. 2. The screen 301 is reset downwards. With the cooperation of spring 304 and telescopic rod 303, the screen 301 falls back downwards, thus completing one shaking. This cycle continues. The elliptical block 408 continues to rotate, and the top rod 402 continuously pushes the screen 301 up and down. The screen 301 shakes continuously with the cooperation of telescopic rod 303 and spring 304, which allows the corn seeds to be quickly screened through the screen 302. After the high-quality seeds are screened out, they are manually collected into the external collection container. The screened corn seeds continue to fall into the screen 301 in the lower screening component 3. The lower screening component 3, under the action of auxiliary component 4, further screens the corn. After the medium-quality corn seeds are screened out, they are also collected by the corresponding external collection container. Corn seeds and impurities that do not meet the planting requirements fall into the collection container below the lower screening component 3 for collection and processing.

[0028] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A screening device for corn breeding comprising a mounting frame (1), characterized in that: The inner wall of the mounting frame (1) is fixedly connected to two fixed frames (2), which are distributed vertically. A screening component (3) is installed on the upper surface of the fixed frame (2), and an auxiliary component (4) is installed below each screening component (3). The auxiliary component (4) is installed on the inner wall of the fixed frame (2). A storage box (5) is installed on the top of the mounting frame (1), and a feeding component (6) is installed inside the storage box (5).

2. The screening device for breeding of corn according to claim 1, characterized by: The screening component (3) includes a screening frame (301), which is located above the fixed frame (2). A screen (302) is installed on the inner wall of the screening frame (301). Two sets of telescopic rods (303) are fixedly connected to the bottom surface of the screening frame (301). The lower ends of the two sets of telescopic rods (303) are fixedly connected to the upper surface of the fixed frame (2). A spring (304) is sleeved on the outer surface of the two sets of telescopic rods (303).

3. The screening device for breeding of corn according to claim 2, characterized by: The auxiliary component (4) includes a fixing frame (401), which is fixedly connected to the inner wall of the fixing frame (2). A top rod (402) is slidably connected to the inner wall of the fixing frame (401). The upper end of the top rod (402) is in contact with the bottom surface of the screening frame (301). A connecting plate (403) is fixedly connected to the lower end of the top rod (402). A spring (404) is sleeved on the outer surface of the top rod (402). A limiting slide rod (405) is fixedly connected to the inner top wall of the fixing frame (401). The connecting plate (403) is slidably connected to the outer surface of the limiting slide rod (405).

4. The screening device for breeding of corn according to claim 3, characterized by: The outer side of the fixing frame (401) is fixedly connected to a motor housing (406), and the inside of the motor housing (406) is fixedly connected to a motor (407). The output end of the motor (407) extends to the inner side of the fixing frame (401), and the output end of the motor (407) is fixedly connected to an elliptical block (408). The elliptical block (408) is in contact with the bottom surface of the connecting plate (403).

5. The screening device for breeding of corn according to claim 1, wherein: The feeding assembly (6) includes a fixing plate (601), which is fixedly connected to the top of the storage box (5). A motor housing (602) is fixedly connected to the upper surface of the fixing plate (601). A motor (603) is fixedly connected inside the motor housing (602). A rotating rod (604) is fixedly connected to the output end of the motor (603). The lower end of the rotating rod (604) passes through the inner wall of the fixing plate (601) and extends to the inner side of the storage box (5). A spiral conveyor plate (605) is fixedly connected to the outer surface of the rotating rod (604).

6. The screening device for breeding of corn according to claim 5, characterized by: The bottom surface of the storage box (5) is equipped with a feeding pipe (7), and the spiral conveyor plate (605) is located inside the feeding pipe (7).

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