Wheat lodging-resistant character breeding auxiliary device based on gravity screening

By designing a wheat seed threshing and hulling assembly and a screening auxiliary device, the problems of high cost and clogging in existing devices were solved, achieving efficient wheat seed screening and breeding, and improving the breeding effect of lodging resistance.

CN223475597UActive Publication Date: 2025-10-28HUBEI NONGJIAFU SEED IND CO LTD
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Patent Information

Application Number
CN202422888388.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-10-28
Estimated Expiration
2034-11-26

AI Technical Summary

Technical Problem

Existing wheat lodging resistance breeding devices require multiple drive mechanisms during the threshing process, resulting in high manufacturing costs and a tendency for wheat to clog the sieve holes.

Method used

The system employs a wheat seed threshing and hulling assembly and a screening auxiliary assembly. The motor drives the shaft and fan blades to rotate, which in turn drives the wheat seed threshing roller to thresh the seeds. The conical feeding auxiliary block and screening hole design are used to separate and screen the wheat seeds from the husks, thus avoiding clogging.

Benefits of technology

It achieves efficient threshing and screening of wheat seeds, ensuring uniform seed size, strong drought and stress resistance, improved lodging resistance, compact plant type, good leaf function, and high seed setting rate.

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Abstract

The utility model provides a wheat lodging-resistant character breeding assisting device based on gravity screening, and relates to the technical field of wheat lodging-resistant character breeding, the wheat lodging-resistant character breeding assisting device comprises a supporting plate, a mounting plate is fixedly mounted on one side of the supporting plate, and a wheat seed threshing machine is fixedly mounted on the inner side of the mounting plate; the motor is started to drive the driving shaft and the fan blades to rotate, so that the driving shaft can drive the wheat seed threshing roller to rotate through the belt pulley and the synchronous belt after rotating, feeding can be conducted on the wheat seed threshing machine, wheat seeds can enter the inner side of the wheat seed threshing machine, and the wheat seed threshing roller can separate the wheat seeds; after threshing is completed, wheat seeds can fall to the inner side of the wheat seed screening box through a conical discharging auxiliary block to be screened, and separated shells can be blown out from the position of a waste chip discharging groove under the driving of air flow blown out by fan blades.
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Description

Technical Field

[0001] This utility model relates to the field of wheat lodging resistance breeding technology, and in particular to an auxiliary device for wheat lodging resistance breeding based on gravity screening. Background Technology

[0002] Wheat is the most widely distributed, highest-yielding, and most traded grain crop in the world. It is also one of my country's main grain crops, second only to rice in yield, and plays an important role in the national economy. How to increase wheat yield has always been a research hotspot. Among the reasons affecting wheat yield, one is lodging, and the other is infection with pathogens.

[0003] CN113826551A discloses a gravity-screened breeding aid for wheat lodging resistance, comprising: S1, hybridizing a wheat variety resistant to sheath blight with Zhengmai 9023, selecting the best-performing plants for threshing to obtain F1 hybrids; S2, planting the F1 hybrids in the regular season, selecting the anthers of the main spikes of robust lodging-resistant plants for anther induction culture, and differentiating the obtained anther callus tissue to obtain haploid plants; S3, after subculturing the haploid plants for root strengthening, transplanting them to a greenhouse for cultivation, harvesting seeds from individual plants and sowing them in the field, selecting the best-performing plants for threshing using a threshing device.

[0004] When in use, the existing device requires multiple drive mechanisms to operate when screening wheat after threshing, which results in high manufacturing and energy costs. In addition, the device is prone to clogging of the screening holes by wheat during screening. Therefore, we propose a wheat lodging resistance breeding auxiliary device based on gravity screening. Utility Model Content

[0005] In view of this, this application provides a gravity screening-based auxiliary device for breeding wheat lodging resistance traits, aiming to solve the above-mentioned technical problems to a certain extent.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A gravity-screened breeding aid for lodging resistance in wheat includes a support plate, an mounting plate fixedly installed on one side of the support plate, a wheat seed threshing machine fixedly installed on the inner side of the mounting plate, a waste discharge chute fixedly installed on the left side of the wheat seed threshing machine, a fixing frame fixedly installed on the right side of the wheat seed threshing machine, a screening auxiliary frame fixedly installed at the bottom of the wheat seed threshing machine, a wheat seed threshing and hulling assembly arranged above the wheat seed threshing and hulling assembly and the screening auxiliary frame, and a wheat seed screening auxiliary assembly arranged above the wheat seed threshing and hulling assembly and the screening auxiliary frame.

[0008] The wheat seed threshing and hulling assembly includes a motor, a drive shaft, and fan blades. The motor is fixedly installed on the inner wall of one side of the fixed frame, the drive shaft is fixedly installed at the output end of the motor, and the fan blades are fixedly installed around the outer side of the drive shaft.

[0009] Preferably, the wheat seed threshing and hulling assembly further includes a rotating shaft, a wheat seed threshing roller, a pulley, a timing belt, and a conical feeding auxiliary block. The rotating shaft is rotatably mounted on the inner side of the wheat seed threshing machine, the wheat seed threshing roller is fixedly mounted on the outer side of the rotating shaft, the pulley is fixedly mounted on the outer side of the rotating shaft and the drive shaft, the timing belt is tensioned on the outer side of the pulley, and the conical feeding auxiliary block is fixedly mounted on the bottom inner wall of the wheat seed threshing machine.

[0010] Preferably, the wheat seed screening auxiliary component includes an auxiliary plate, an auxiliary shaft, a bevel gear, a movable shaft, and a turntable. The auxiliary plate is fixedly installed on one side of the screening auxiliary frame, the auxiliary shaft is rotatably installed on the inner side of the auxiliary plate, the bevel gear is fixedly installed on the outer side of the auxiliary shaft and the rotating shaft, adjacent bevel gears mesh with each other, the movable shaft is rotatably installed on the inner side of the auxiliary plate, and the turntable is fixedly installed on the bottom of the movable shaft.

[0011] Preferably, the wheat seed screening auxiliary component further includes a transmission gear, a control block, a limiting rod, a force-bearing block, and a wheat seed breeding auxiliary mechanism. The transmission gear is fixedly installed on the outside of the auxiliary shaft, the control block is fixedly installed on the bottom of the turntable, the limiting rod is slidably installed on the inside of the screening auxiliary frame, and the force-bearing block is fixedly installed on the outside of one end of the limiting rod.

[0012] Preferably, the wheat seed breeding auxiliary mechanism includes a mounting frame, a wheat seed screening box, fixing bolts, screening holes, and a limiting block. The mounting frame is fixedly installed between one side of the limiting rod. The wheat seed screening box is located inside the mounting frame. The fixing bolts are threadedly installed on the left and right sides of the front of the wheat seed screening box and the mounting frame. The screening holes are opened on the outside of the wheat seed screening box. The limiting block is fixedly installed on the outside of one end of the limiting rod. A feeding pipe is provided at the bottom of the wheat seed screening box, and a solenoid valve is provided on the outside of the feeding pipe.

[0013] By adopting the above technical solution, multiple through slots are provided above the mounting frame, making it less likely to obstruct the wheat seed screening box. This allows the wheat seed screening box to screen out smaller-diameter wheat seeds after sliding, while the remaining plump seeds can be used as breeding seeds for lodging resistance traits. This results in seeds with strong drought resistance and stress resistance, less impact from high and low temperature reversals, good leaf function, and good ripening. The seeds also exhibit strong lodging resistance, a compact plant type, short and wide flag leaves that spread out, good ventilation and light penetration between rows, and numerous and uniform ears with good grain filling.

[0014] Preferably, the mounting bracket has through slots in multiple directions, and threaded holes are provided on the left and right sides of the front side of the mounting bracket, with the fixing bolts engaging with the threaded holes.

[0015] Preferably, the turntable has toothed grooves around its outer circumference, and the transmission gear meshes with the adjacent toothed grooves.

[0016] By adopting the above technical solution, the tooth groove facilitates the rotation of the transmission gear, which in turn drives the turntable to rotate, and the turntable can drive the force-bearing block to perform force-bearing movement through the control block.

[0017] Preferably, a control groove is provided on one side of the force-bearing block, and the control block is disposed inside the control groove.

[0018] Preferably, the diameter of the pulley on the outer side of the rotating shaft is larger than the diameter of the pulley on the outer side of the drive shaft.

[0019] Preferably, the screening auxiliary frame has limit grooves on its left and right sides, and the limit rod is slidably installed on the inner side of the limit groove.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] (1) The present invention provides a wheat lodging resistance breeding auxiliary device based on gravity screening. Through the wheat seed threshing and shell blowing assembly, the motor is turned on to drive the drive shaft and fan blades to rotate. After the drive shaft rotates, it can drive the wheat seed threshing roller to rotate through the pulley and synchronous belt, so that the wheat seed threshing machine can be fed, so that the wheat seeds can enter the inner side of the wheat seed threshing machine, and the wheat seed threshing roller can thresh the wheat seeds. After threshing, the wheat seeds can fall into the inner side of the wheat seed screening box through the conical feeding auxiliary block for screening, and the detached shell can be blown out from the waste discharge chute by the airflow blown out by the fan blades.

[0022] (2) The present invention provides a wheat lodging resistance breeding auxiliary device based on gravity screening. Through the wheat seed screening auxiliary component and wheat seed breeding auxiliary mechanism, the wheat seeds can fall into the inner side of the wheat seed screening box after feeding. The wheat seed screening box has a large number of screening holes of uniform diameter at the top. The outer diameter of the wheat seed screening box is larger than the inner diameter of the upper feeding port, so that the device is less likely to miss the screening. After screening, the wheat seed screening box can be taken out by opening the solenoid valve above the lower pipe, so that the seeds inside the wheat seed screening box are uniform in size, plump and healthy.

[0023] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural schematic diagram of a wheat lodging resistance breeding auxiliary device based on gravity screening proposed in this utility model.

[0025] Figure 2 This is a schematic diagram of a three-dimensional view of a partial structure of a gravity-screened breeding aid device for lodging resistance traits in wheat, according to an embodiment of this application.

[0026] Figure 3 A schematic diagram of the three-dimensional structure of the explosive portion of a gravity-screened wheat lodging resistance breeding aid device according to an embodiment of this application is shown.

[0027] Figure 4 This is a schematic diagram of a three-dimensional view of the structure of the explosive portion of a gravity-based wheat lodging resistance breeding aid device according to an embodiment of this application.

[0028] Figure label:

[0029] 1. Wheat seed threshing and hulling assembly; 2. Wheat seed screening auxiliary assembly; 3. Wheat seed breeding auxiliary mechanism; 4. Support plate; 5. Mounting plate; 6. Wheat seed threshing machine; 7. Waste discharge chute; 8. Fixing frame; 9. Screening auxiliary frame;

[0030] 11. Motor; 12. Drive shaft; 13. Fan blade; 14. Rotating shaft; 15. Wheat seed threshing roller; 16. Pulley; 17. Synchronous belt; 18. Conical feeding auxiliary block;

[0031] 21. Auxiliary plate; 22. Auxiliary shaft; 23. Bevel gear; 24. Movable shaft; 25. Turntable; 26. Transmission gear; 27. Control block; 28. Limit rod; 29. ​​Force-bearing block;

[0032] 31. Mounting frame; 32. Wheat seed screening box; 33. Fixing bolts; 34. Screening holes; 35. Limiting block. Detailed Implementation

[0033] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings;

[0034] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0035] refer to Figure 1-4A gravity-screened breeding auxiliary device for lodging resistance of wheat includes a support plate 4, an installation plate 5 fixedly installed on one side of the support plate 4, a wheat seed threshing machine 6 fixedly installed on the inner side of the installation plate 5, a waste discharge trough 7 fixedly installed on the left side of the wheat seed threshing machine 6, a fixing frame 8 fixedly installed on the right side of the wheat seed threshing machine 6, a screening auxiliary frame 9 fixedly installed at the bottom of the wheat seed threshing machine 6, a wheat seed threshing and blowing assembly 1 arranged above the wheat seed threshing and blowing assembly 1 and the screening auxiliary frame 9 arranged above a wheat seed screening auxiliary assembly 2.

[0036] The wheat seed threshing and hulling assembly 1 includes a motor 11, a drive shaft 12, and a fan blade 13. The motor 11 is fixedly installed on the inner wall of one side of the fixed frame 8, the drive shaft 12 is fixedly installed on the output end of the motor 11, and the fan blade 13 is fixedly installed around the outer side of the drive shaft 12.

[0037] In this embodiment, the wheat seed threshing and hulling assembly 1 further includes a rotating shaft 14, a wheat seed threshing roller 15, a pulley 16, a timing belt 17, and a conical feeding auxiliary block 18. The rotating shaft 14 is rotatably mounted on the inner side of the wheat seed threshing machine 6, the wheat seed threshing roller 15 is fixedly mounted on the outer side of the rotating shaft 14, the pulley 16 is fixedly mounted on the outer side of the rotating shaft 14 and the drive shaft 12, the timing belt 17 is tensioned on the outer side of the pulley 16, and the conical feeding auxiliary block 18 is fixedly mounted on the bottom inner wall of the wheat seed threshing machine 6.

[0038] In this embodiment, the wheat seed screening auxiliary component 2 includes an auxiliary plate 21, an auxiliary shaft 22, a bevel gear 23, a movable shaft 24, and a turntable 25. The auxiliary plate 21 is fixedly installed on one side of the screening auxiliary frame 9. The auxiliary shaft 22 is rotatably installed on the inner side of the auxiliary plate 21. The bevel gear 23 is fixedly installed on the outer side of the auxiliary shaft 22 and the rotating shaft 14. Adjacent bevel gears 23 mesh with each other. The movable shaft 24 is rotatably installed on the inner side of the auxiliary plate 21. The turntable 25 is fixedly installed on the bottom of the movable shaft 24.

[0039] In this embodiment, the wheat seed screening auxiliary component 2 also includes a transmission gear 26, a control block 27, a limiting rod 28, a force-bearing block 29, and a wheat seed breeding auxiliary mechanism 3. The transmission gear 26 is fixedly installed on the outside of the auxiliary shaft 22, the control block 27 is fixedly installed on the bottom of the turntable 25, the limiting rod 28 is slidably installed on the inside of the screening auxiliary frame 9, and the force-bearing block 29 is fixedly installed on the outside of one end of the limiting rod 28.

[0040] In this embodiment, the wheat seed breeding auxiliary mechanism 3 includes a mounting frame 31, a wheat seed screening box 32, fixing bolts 33, screening holes 34, and a limiting block 35. The mounting frame 31 is fixedly installed between one side of the limiting rod 28. The wheat seed screening box 32 is located inside the mounting frame 31. The fixing bolts 33 are threadedly installed on the left and right sides of the front of the wheat seed screening box 32 and the mounting frame 31. The screening holes 34 are opened on the outside of the wheat seed screening box 32. The limiting block 35 is fixedly installed on the outside of one end of the limiting rod 28. A feeding pipe is provided at the bottom of the wheat seed screening box 32, and a solenoid valve is provided on the outside of the feeding pipe. In this embodiment, the mounting frame 31 has through slots in multiple directions, and threaded holes are provided on the left and right sides of the front side of the mounting frame 31. The fixing bolts 33 are engaged with the threaded holes. The threaded holes facilitate the installation of the fixing bolts 33, and the wheat seed screening box 32 can be disassembled for maintenance and replacement. A conical feeding box and a feeding pipe are provided below the wheat seed screening box 32. A solenoid valve is provided on the outside of the feeding pipe, so that the device can feed the seeds by opening the solenoid valve. The bottom of the screening auxiliary frame 9 is hollow, so that the device can place the collection cylinder or collection plastic bag under the screening auxiliary frame 9 for collection.

[0041] In this embodiment, the outer circumference of the turntable 25 is provided with toothed grooves, and the transmission gear 26 meshes with the adjacent toothed grooves; in this embodiment, a control groove is provided on one side of the force-bearing block 29, and the control block 27 is located inside the control groove; the control groove facilitates the control block 27 to drive the force-bearing block 29 and the limit rod 28 to perform reciprocating linear motion after rotation.

[0042] In this embodiment, the diameter of the pulley 16 on the outer side of the rotating shaft 14 is larger than the diameter of the pulley 16 on the outer side of the drive shaft 12; this allows the rotating shaft 14 to perform deceleration motion with the same pulley 16 and synchronous belt 17, making the wheat seed threshing roller 15 more stable during rotation.

[0043] In this embodiment, limiting grooves are provided on the left and right sides of the screening auxiliary frame 9, and the limiting rod 28 is slidably installed on the inner side of the limiting groove. The limiting groove facilitates the sliding of the limiting rod 28, so that the limiting rod 28 can drive the mounting frame 31 and the wheat seed screening box 32 to reciprocate after being subjected to force, so that the wheat seeds inside the wheat seed screening box 32 can be screened, and the wheat seeds inside the wheat seed screening box 32 are less likely to become clogged.

[0044] The specific operation is as follows: The motor 11 is turned on, driving the drive shaft 12 and fan blades 13 to rotate. After rotation, the drive shaft 12 drives the wheat seed threshing roller 15 to rotate via the pulley 16 and synchronous belt 17, thus feeding the wheat seed threshing machine 6. The wheat seeds enter the inner side of the wheat seed threshing machine 6, allowing the wheat seed threshing roller 15 to thresh the seeds. After threshing, the wheat seeds fall through the conical feeding auxiliary block 18 to the inner side of the wheat seed screening box 32 for screening. The detached outer shell is blown out from the waste discharge chute 7 by the airflow from the fan blades 13. The wheat seeds fall into the inner side of the wheat seed screening box 32 after feeding. The wheat seed screening box 32 has multiple screening holes 34 of uniform diameter at the top, allowing the bevel gear 23 above the wheat seed threshing roller 15 to... The auxiliary shaft 22 is driven to rotate, which in turn drives the turntable 25 to rotate via the transmission gear 26. The turntable 25, through the control block 27, drives the force block 29 and the limit rod 28 to reciprocate linearly. The limit rod 28 drives the mounting frame 31 and the wheat seed screening box 32 to reciprocate linearly. The outer diameter of the wheat seed screening box 32 is larger than the inner diameter of the upper feed port, making it less likely for the device to miss any seeds. After screening, the wheat seed screening box 32 can be removed by opening the solenoid valve above the lower pipe. This ensures that the seeds inside the wheat seed screening box 32 are uniform in size, plump, and healthy. This results in strong drought and stress resistance, minimal impact from high and low temperature fluctuations, good leaf function, and excellent ripening. It also enhances lodging resistance, compact plant type, short and wide flag leaves, good ventilation and light penetration between rows, numerous and uniform ears, and good grain filling.

[0045] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0046] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A breeding aid device for wheat lodging resistance traits based on gravity screening, characterized in that, include: A support plate (4) is fixedly installed on one side of the support plate (4), a wheat seed threshing machine (6) is fixedly installed on the inner side of the mounting plate (5), a waste discharge chute (7) is fixedly installed on the left side of the wheat seed threshing machine (6), a fixing frame (8) is fixedly installed on the right side of the wheat seed threshing machine (6), a screening auxiliary frame (9) is fixedly installed at the bottom of the wheat seed threshing machine (6), a wheat seed threshing and shelling assembly (1) is provided above the wheat seed threshing and shelling assembly (1) and a wheat seed screening auxiliary assembly (2) is provided above the wheat seed threshing and shelling assembly (1) and the screening auxiliary frame (9); The wheat seed threshing and hulling assembly (1) includes a motor (11), a drive shaft (12), and a fan blade (13). The motor (11) is fixedly installed on the inner wall of one side of the fixed frame (8). The drive shaft (12) is fixedly installed at the output end of the motor (11). The fan blade (13) is fixedly installed around the outer side of the drive shaft (12).

2. The wheat lodging resistance breeding auxiliary device based on gravity screening according to claim 1, characterized in that, The wheat seed threshing and hulling assembly (1) also includes a rotating shaft (14), a wheat seed threshing roller (15), a pulley (16), a timing belt (17), and a conical feeding auxiliary block (18). The rotating shaft (14) is rotatably mounted on the inner side of the wheat seed threshing machine (6). The wheat seed threshing roller (15) is fixedly mounted on the outer side of the rotating shaft (14). The pulley (16) is fixedly mounted on the outer side of the rotating shaft (14) and the drive shaft (12). The timing belt (17) is tensioned on the outer side of the pulley (16). The conical feeding auxiliary block (18) is fixedly mounted on the bottom inner wall of the wheat seed threshing machine (6).

3. The wheat lodging resistance breeding auxiliary device based on gravity screening according to claim 1, characterized in that, The wheat seed screening auxiliary component (2) includes an auxiliary plate (21), an auxiliary shaft (22), a bevel gear (23), a movable shaft (24), and a turntable (25). The auxiliary plate (21) is fixedly installed on one side of the screening auxiliary frame (9). The auxiliary shaft (22) is rotatably installed on the inner side of the auxiliary plate (21). The bevel gear (23) is fixedly installed on the outer side of the auxiliary shaft (22) and the rotating shaft (14). Adjacent bevel gears (23) mesh with each other. The movable shaft (24) is rotatably installed on the inner side of the auxiliary plate (21). The turntable (25) is fixedly installed at the bottom of the movable shaft (24).

4. The wheat lodging resistance breeding auxiliary device based on gravity screening according to claim 3, characterized in that, The wheat seed screening auxiliary component (2) also includes a transmission gear (26), a control block (27), a limit rod (28), a force-bearing block (29), and a wheat seed breeding auxiliary mechanism (3). The transmission gear (26) is fixedly installed on the outside of the auxiliary shaft (22), the control block (27) is fixedly installed on the bottom of the turntable (25), the limit rod (28) is slidably installed on the inside of the screening auxiliary frame (9), and the force-bearing block (29) is fixedly installed on the outside of one end of the limit rod (28).

5. The wheat lodging resistance breeding auxiliary device based on gravity screening according to claim 4, characterized in that, The wheat seed breeding auxiliary mechanism (3) includes a mounting frame (31), a wheat seed screening box (32), fixing bolts (33), screening holes (34), and a limiting block (35). The mounting frame (31) is fixedly installed between one side of the limiting rod (28). The wheat seed screening box (32) is located inside the mounting frame (31). The fixing bolts (33) are threadedly installed on the left and right sides of the front of the wheat seed screening box (32) and the mounting frame (31). The screening holes (34) are opened on the outside of the wheat seed screening box (32). The limiting block (35) is fixedly installed on the outside of one end of the limiting rod (28). A feeding pipe is provided at the bottom of the wheat seed screening box (32), and a solenoid valve is provided on the outside of the feeding pipe.

6. The wheat lodging resistance breeding auxiliary device based on gravity screening according to claim 5, characterized in that, The mounting bracket (31) has through slots in multiple directions, and threaded holes are provided on the left and right sides of the front side of the mounting bracket (31). The fixing bolt (33) engages with the threaded holes.

7. The wheat lodging resistance breeding auxiliary device based on gravity screening according to claim 4, characterized in that, The turntable (25) has a toothed groove around its outer circumference, and the transmission gear (26) meshes with the adjacent toothed groove.

8. The wheat lodging resistance breeding auxiliary device based on gravity screening according to claim 4, characterized in that, A control groove is provided on one side of the force-bearing block (29), and the control block (27) is located inside the control groove.

9. The wheat lodging resistance breeding auxiliary device based on gravity screening according to claim 2, characterized in that, The diameter of the pulley (16) on the outside of the rotating shaft (14) is larger than the diameter of the pulley (16) on the outside of the drive shaft (12).

10. The wheat lodging resistance breeding auxiliary device based on gravity screening according to claim 4, characterized in that, The screening auxiliary frame (9) has limit grooves on its left and right sides, and the limit rod (28) is slidably installed on the inner side of the limit groove.

Citation Information

Patent Citations

  • High-yield lodging-resistant wheat breeding method

    CN113826551A