A device for screening and selecting fine breeding of crops

Abstract

The application discloses a kind of excellent crop breeding screening devices, it is related to crop breeding screening technical field, including base and overturning assembly, by overturning assembly provides the screen frame with double-sided screen mesh overturning function, so that the seed accumulated is repeatedly thrown up, dispersed in volume, and impact force and loose effect are generated when falling, avoid the problem that lower seed extrusion, upper seed screening is not sufficient due to gravity accumulation, reduce screen hole blockage and residual, ensure that all seeds are uniformly contacted screen mesh, improve screening efficiency, seed in closed screen frame, after vibration by vibration motor drive vibration, screen frame vibration is driven by connecting rod to seed vibration screening, damping structure consisting of slide bar, spring, damping block and guide sleeve rod, reduce the influence of vibration on rotary position tooth ring structure, after a certain time, driving motor provides power to drive gear rotation, make rotary position tooth ring rotate in support ring frame, and drive internal connecting structure overturn, make screen frame overturn screen surface.

Description

Technical Field

[0001] This utility model relates to the field of crop breeding and screening technology, and in particular to a device for screening superior crop breeding varieties. Background Technology

[0002] Superior crop varieties can increase yield, enhance resistance to pests and diseases, and improve quality. Breeding screening devices are important tools for breeding superior varieties. During the crop seed production process, various factors, such as genetic variation, environmental factors, and production and processing stages, lead to differences in seed quality. Using screening devices can accurately screen seeds, remove inferior seeds, and ensure seed purity and quality.

[0003] Currently, most existing crop breeding screening devices use vibrating screens for screening. However, ordinary vibrating screens can only perform planar vibration screening. When seeds are piled up in a volume, the lower layer of seeds are squeezed due to gravity, and the upper layer of seeds are not screened sufficiently. There is also the problem of clogging of the screen holes due to the retention of large particles or impurities, resulting in poor screening effect.

[0004] To address these issues, we have developed a crop superior breeding and screening device. Utility Model Content

[0005] The purpose of this invention is to provide a superior crop breeding and screening device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a crop superior breeding and screening device, comprising a base and a flipping assembly, wherein the flipping assembly is installed at the top of the base, and the flipping assembly includes a support ring frame fixedly connected to the top of the base, wherein a helical gear ring is rotatably connected to the inner side of the support ring frame through a slot, a drive gear is meshed with the helical gear ring, a drive motor is connected to the inner side of the drive gear through a shaft key, and a bracket is rotatably connected to the outer side of the drive gear, wherein the bottom end of the bracket is fixedly connected to the base.

[0007] Preferably, an expansion support block is fixedly connected to the inner side of the rotating toothed ring, and two sets of expansion support blocks are symmetrically arranged. A guide sleeve is fixedly connected to the surface of the expansion support block.

[0008] Preferably, a damping block is installed at the bottom of the guide sleeve, a spring is installed at the top of the damping block, a sliding rod is abutted against the top of the spring, and the outer side of the sliding rod and the guide sleeve form a sliding structure through a groove.

[0009] Preferably, a connecting rod is fixedly connected to the top end of the slide rod, and a vibration motor is installed at one end of the connecting rod.

[0010] Preferably, the other end of the connecting rod is fixedly connected to a sieve frame, and the inner side of the sieve frame is slidably connected to a sieve mesh through a slot, with two sets of sieve mesh distributed vertically.

[0011] Preferably, a pull plate is fixedly connected to the outer end of the screen, and the pull plate and the screen frame are connected by a slot to form an insertion structure. A fixing screw is provided through one side of the pull plate, and the fixing screw is threadedly connected to the screen frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The flipping component provides a flipping function for the sieve frame with double-sided screens, which allows the accumulated seeds to be repeatedly thrown up and dispersed within the volume. The impact force and loosening effect generated when the seeds fall avoid the problems of lower layer seed compression and upper layer seed insufficient screening caused by gravity accumulation, reduce sieve hole blockage and residue, ensure that all seeds are evenly in contact with the sieve, and improve screening efficiency. Seeds in the closed sieve frame are vibrated by the vibration motor and then the connecting rod drives the sieve frame to vibrate and screen the seeds. The vibration damping structure composed of sliding rod, spring, damping block and guide sleeve rod reduces the impact of vibration on the rotating toothed ring and other structures. After a certain period of time, the drive motor provides power to drive the drive gear to rotate, so that the rotating toothed ring rotates in the support ring frame and drives the internal connecting structure to flip, so that the sieve frame rotates and the other side of the sieve screen continues to vibrate and screen downwards.

[0014] 2. The pull plate is fixed to the screen frame by a threaded connection through a fixing screw, making it easy to disassemble and replace the screen. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the sieve frame proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the support ring frame proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the guide sleeve rod proposed in this utility model.

[0019] In the diagram: 1. Base; 2. Tilting assembly; 201. Support ring frame; 202. Rotating gear ring; 203. Drive gear; 204. Drive motor; 205. Bracket; 206. Expansion block; 207. Guide sleeve rod; 208. Damping block; 209. Spring; 210. Slide rod; 211. Connecting rod; 212. Vibration motor; 3. Screen frame; 4. Screen mesh; 5. Pull plate; 6. Fixing screw. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4 As shown, a crop superior breeding and screening device includes a base 1 and a flipping assembly 2. The flipping assembly 2 is installed at the top of the base 1. The flipping assembly 2 includes a support ring frame 201 fixedly connected to the top of the base 1. A helical gear ring 202 is rotatably connected to the inner side of the support ring frame 201 through a slot. A drive gear 203 is meshed with the helical gear ring 202. A drive motor 204 is connected to the inner side of the drive gear 203 through a shaft key. A bracket 205 is rotatably connected to the outer side of the drive gear 203. The bottom end of the bracket 205 is fixedly connected to the base 1. The support ring frame 201 provides a support structure for the helical gear ring 202. The drive motor 204 provides power to drive the drive gear 203 to rotate, causing the helical gear ring 202 to rotate within the support ring frame 201 and causing the internal connecting structure to flip. The bracket 205 provides support and fixation for the drive gear 203 and the drive motor 204.

[0022] Furthermore, an expansion support block 206 is fixedly connected to the inner side of the rotating toothed ring 202. Two sets of expansion support blocks 206 are symmetrically arranged. A guide sleeve rod 207 is fixedly connected to the surface of the expansion support block 206. The expansion support block 206 expands the support area to ensure bottom support of the guide sleeve rod 207. The guide sleeve rod 207 provides limiting support for the slide rod 210 and ensures structural stability after flipping through symmetrical distribution.

[0023] Furthermore, a damping block 208 is installed at the bottom of the guide sleeve 207, and a spring 209 is installed at the top of the damping block 208. The top of the spring 209 abuts against a slide rod 210. The outer side of the slide rod 210 and the guide sleeve 207 form a sliding structure through a groove. The vibration reduction structure composed of the slide rod 210, the spring 209, the damping block 208 and the guide sleeve 207 reduces the impact of vibration on structures such as the rotating toothed ring 202.

[0024] Furthermore, a connecting rod 211 is fixedly connected to the top of the slide rod 210, and a vibration motor 212 is installed at one end of the connecting rod 211. After the vibration motor 212 drives the vibration, the connecting rod 211 drives the sieve frame 3 to vibrate and sieve the seeds.

[0025] Furthermore, the other end of the connecting rod 211 is fixedly connected to a screen frame 3. The inner side of the screen frame 3 is slidably connected to a screen mesh 4 through a slot. There are two sets of screen mesh 4 distributed vertically. The relative sealing structure of the two sets of screen mesh 4 distributed at the upper and lower ends of the screen frame 3 ensures that the screen frame 3 can continue to screen after it is flipped.

[0026] Furthermore, a pull plate 5 is fixedly connected to the outer end of the screen 4. The pull plate 5 and the screen frame 3 form an insertion structure through a slot. A fixing screw 6 is provided through one side of the pull plate 5. The fixing screw 6 is threadedly connected to the screen frame 3. By the fixing screw 6 passing through the pull plate 5 and threadedly connecting the screen frame 3, the pull plate 5 is fixedly connected to the screen frame 3, which makes it convenient to disassemble and replace the screen 4.

[0027] Working principle: In use, firstly, after the bottom screen 4 of the screen frame 3 is installed, the seeds are poured into the screen frame 3, and the top screen 4 is installed and sealed. Secondly, after the vibration motor 212 drives the vibration, the connecting rod 211 drives the screen frame 3 to vibrate and screen the seeds. The vibration reduction structure composed of the sliding rod 210, spring 209, damping block 208 and guide sleeve rod 207 reduces the impact of vibration on the rotating toothed ring 202 and other structures. Thirdly, after a certain period of time, the drive motor 204 provides power to drive the drive gear 203 to rotate, so that the rotating toothed ring 202 rotates in the support ring frame 201 and drives the internal connecting structure to flip, so that the screen frame 3 rotates and the other screen 4 continues to vibrate downward. Fourthly, after multiple flips and vibrations, the fixing screw 6 is rotated to disengage from the screen frame 3, and the screen 4 is pulled out through the pull ring of the pull plate 5, so that the screened seeds are discharged. This completes the use of a crop superior breeding screening device.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A crop superior breeding and screening device, comprising a base (1) and a flipping component (2), characterized in that, A flipping assembly (2) is installed at the top of the base (1). The flipping assembly (2) includes a support ring frame (201) fixedly connected to the top of the base (1). A rotating gear ring (202) is rotatably connected to the inner side of the support ring frame (201) through a slot. A drive gear (203) is meshed with the rotating gear ring (202). A drive motor (204) is connected to the inner side of the drive gear (203) through a shaft key. A bracket (205) is rotatably connected to the outer side of the drive gear (203). The bottom end of the bracket (205) is fixedly connected to the base (1).

2. The crop superior breeding and screening device according to claim 1, characterized in that, The inner side of the rotating toothed ring (202) is fixedly connected to an expansion support block (206), and two sets of expansion support blocks (206) are symmetrically arranged. The surface of the expansion support block (206) is fixedly connected to a guide sleeve rod (207).

3. The crop superior breeding and screening device according to claim 2, characterized in that, A damping block (208) is installed at the bottom of the guide sleeve (207), and a spring (209) is installed at the top of the damping block (208). A slide rod (210) abuts against the top of the spring (209), and the outer side of the slide rod (210) and the guide sleeve (207) form a sliding structure through a groove.

4. The crop superior breeding and screening device according to claim 3, characterized in that, The top end of the slide bar (210) is fixedly connected to a connecting rod (211), and a vibration motor (212) is installed at one end of the connecting rod (211).

5. The crop superior breeding and screening device according to claim 4, characterized in that, The other end of the connecting rod (211) is fixedly connected to a sieve frame (3), and the inner side of the sieve frame (3) is slidably connected to a sieve mesh (4) through a slot. The sieve mesh (4) has two sets distributed vertically.

6. The crop superior breeding and screening device according to claim 5, characterized in that, The outer end of the screen (4) is fixedly connected to a pull plate (5). The pull plate (5) and the screen frame (3) are connected by a slot to form an insertion structure. A fixing screw (6) is provided through one side of the pull plate (5). The fixing screw (6) is threadedly connected to the screen frame (3).

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