Seed selection device and method for agricultural sowing machinery

Abstract

The present invention discloses a seed selection device and method for agricultural sowing machinery, relates to the technical field of seed selection devices, and solves the technical problem of inconvenient round seed selection. The device comprises a shell, a feed hopper is fixedly installed on the top of the shell, filter plates are obliquely installed on the inner walls of both sides of the shell, an exhaust fan is connected and installed on the side of the shell close to the feed hopper, a filter bag is installed on the side of the exhaust fan away from the shell, a filter screen is fixedly installed on the side of the exhaust fan close to the filter plate, a seed selection component is arranged in the shell, and the seed selection component comprises seed selection rollers, partition plates are fixedly installed on the inner walls of both sides of the shell, a material guide plate is fixedly installed on the side corresponding to the partition plate and the inner wall of the shell, the seed selection rollers are installed on the inner walls of both sides of the shell, and sleeves are nested on the seed selection rollers; it is convenient to select round and full beans of the same size, which is beneficial to improving the working efficiency of the seed selection device.

Description

Technical Field

[0001] The present invention relates to the technical field of seed selection devices, and in particular to a seed selection device and method for agricultural sowing machinery. Background Art

[0002] In agriculture, for some crops with high sowing requirements, seed selection is generally required before formal sowing. Seed selection generally involves screening the size of seeds. The purpose is to select seeds of appropriate size to ensure that after subsequent sowing, the crop emergence rate is high and the growth of crops is more consistent. However, the existing seed selection device still has some disadvantages when used. Since beans are mixed with a large amount of dandruff or particulate matter, a certain amount of dandruff or particulate matter will accumulate on the screen in the seed selection box, which may cause the sieve holes on the screen to be blocked by dandruff or particulate matter, thereby reducing the screening efficiency of the screen. For example, the Chinese utility model patent with patent publication number CN216965404U can filter and block dandruff or particulate matter mixed in the beans through the filter net, so as to ensure the falling speed of the screen net when screening beans, thereby improving the screening quality and efficiency of the screen net for beans.

[0003] However, although the above device is convenient for filtering impurities in beans, during seed selection, since beans are easily flattened and damaged during harvesting, it is not convenient to select beans of the same size, which are round and plump by relying solely on the filter net, which is not convenient for seed selection operations and affects the working efficiency of the device. Therefore, based on the technical defects, we have proposed a seed selection device and method for agricultural sowing machinery that can solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a seed selection device and method for agricultural sowing machinery to solve the following technical problems:

[0005] Although it is convenient to filter impurities in beans, when selecting seeds, since beans are easily flattened and damaged during harvesting, it is not convenient to select beans of the same size, round and full, relying solely on the filter, which is inconvenient for seed selection operations and affects the working efficiency of the seed selection device.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] The filter bag of the filter bag is installed on the side of the filter bag away from the housing, and the filter screen is fixedly installed on the side of the filter bag close to the housing. The filter screen is fixedly installed on the side of the filter bag close to the housing, and a seed selection component is provided in the housing. The seed selection component includes a seed selection roller, a partition plate is fixedly installed on the inner walls of the two sides of the housing, and a material guide plate is fixedly installed on the side corresponding to the partition plate and the inner wall of the housing. The seed selection roller is installed on the inner walls of the two sides of the housing, and a sleeve is nested on the seed selection roller. The sleeve and the seed selection roller are provided with seed selection holes, and a first motor is fixedly installed on one side of the housing, and two pulleys are rotatably installed on the side of the housing close to the first motor.

[0008] As a further solution of the present invention: a belt is installed between the two pulleys, a rubber strip is fixedly installed at one end corresponding to the two guide plates, the seed selection roller is installed between the two guide plates, and one side of the rubber strip is slidably fitted with the outer surface of the seed selection roller.

[0009] As a further solution of the present invention: the rotating shaft of one of the pulleys slides through the housing and is fixedly mounted on the seed selection roller, and the output end of the first motor is fixedly mounted on the same pulley.

[0010] As a further solution of the present invention: a seed selection chamber and a collection chamber are provided at one end of the shell away from the filter plate, the seed selection chamber is provided above the material guide plate, and the collection chamber is provided below the material guide plate.

[0011] As a further solution of the present invention: a toggle assembly is provided in the shell, and the toggle assembly includes a toggle block, a reciprocating screw is rotatably installed on the inside of both sides of the shell, a reciprocating block is installed with a thread passing through the reciprocating screw, a telescopic rod and a spring are fixedly installed on the side of the reciprocating block close to the seed selection roller, the toggle block is fixedly installed on the end of the telescopic rod away from the reciprocating block, and a rubber edge is fixedly installed on the side of the toggle block away from the spring, and the rotating shaft of the other pulley slides through the shell and is fixedly installed on the reciprocating screw.

[0012] As a further solution of the present invention: a stabilizing rod is installed slidingly through the reciprocating block, both ends of the stabilizing rod are fixedly installed on the inner wall of the shell, the side of the spring away from the reciprocating block is fixedly installed on the toggle block, the spring is nested on the outer surface of the telescopic rod, the side of the rubber edge away from the toggle block is slidably fitted with the outer surface of the seed selection roller, and a rectangular through hole is opened on the rubber edge.

[0013] As a further solution of the present invention: a cleaning assembly is provided in the shell, and the cleaning assembly includes a cleaning brush, a reciprocating screw is rotatably installed on the inner wall of the shell near one end of the filter plate, a slider is threaded through the reciprocating screw, a mounting plate is fixedly installed on the side of the slider near the partition plate, the cleaning brush is installed on the mounting plate, a second motor is fixedly installed on the side of the shell away from the first motor, and the output end of the second motor slides through the shell and is fixedly installed on the reciprocating screw.

[0014] As a further solution of the present invention: a groove is provided on the side of the mounting plate away from the filter plate, a protrusion is installed in the groove, the cleaning brush is fixedly installed on the side of the protrusion close to the filter plate, and two fixed plates are rotatably installed on the side of the filter plate close to the protrusion, and the two fixed plates are rotatably installed on the two ends of the mounting plate respectively.

[0015] A method for selecting a seed device for an agricultural sowing machine comprises the following steps;

[0016] First, start the exhaust fan, then pour the beans to be screened from the feed hopper into the shell, and at the same time, filter the beans on the filter plate. The husks mixed in the beans are collected into the shell under the action of the exhaust fan, and the dust is collected into the filter bag. At the same time, the filtered beans fall into the seed selection chamber, and then start the first motor to drive the seed selection roller to rotate, and at the same time, the beans fall into the seed selection hole, and fall into the collection chamber under the rotation of the seed selection roller. At the same time, the first motor drives the cleaning brush to reciprocate on the filter plate through the pulley and belt, so as to select the beans of the same size, round and full.

[0017] Beneficial effects of the present invention:

[0018] The seed selection component drives one of the pulleys to rotate by starting the first motor, and at the same time, the rotating shaft of one of the pulleys drives the seed selection roller to rotate, so that the beans fall into the seed selection hole, and at the same time, the seed selection roller drives the beans to rotate into the collecting chamber through the seed selection hole, so that it is convenient to select beans with the same size, which are round and full, and the seed selection operation is convenient, and the situation of flattened and soaked beans entering the collecting chamber is avoided as much as possible, which is beneficial to improving the working efficiency of the seed selection device and improving the adjustment ability of the device;

[0019] The toggle assembly starts the first motor and drives another pulley to rotate through the belt, and at the same time, the rotating shaft of the pulley drives the reciprocating screw to rotate, and at the same time, the reciprocating block drives the toggle block to reciprocate through the telescopic rod and the spring, and at the same time, the toggle block drives the rubber edge to slide on the seed selection roller, and at the same time, the beans are passed through the rectangular through-hole, so that the beans that cannot enter the seed selection hole are easily toggled back and forth. The reciprocating toggle is beneficial to increasing the speed at which the beans enter the seed selection hole, thereby improving the seed selection efficiency of the device and improving the toggle ability of the device.

[0020] The cleaning component drives the cleaning brush to be inserted into the groove by taking the protrusion, and then rotates the fixing plate to the protrusion to limit the position in the groove of the fixed protrusion, and then starts the second motor to drive the reciprocating screw rod to rotate, and at the same time, the reciprocating screw rod drives the mounting plate to move back and forth through the slider, and at the same time, the mounting plate drives the cleaning brush to clean the bottom surface of the filter plate back and forth, which avoids the clogging of the filter plate as much as possible, is beneficial to improve the filtering effect of the device, is convenient for installation and disassembly, and is convenient for replacement and cleaning of the cleaning brush, which is beneficial to improve the cleaning ability of the device and the working efficiency of the device selection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of a seed selection device for an agricultural sowing machine according to the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of a seed selection device of an agricultural sowing machine according to the present invention;

[0024] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 4 It is a side structural schematic diagram of a seed selection device of an agricultural sowing machine according to the present invention;

[0026] Figure 5 yes Figure 4 Schematic diagram of the enlarged structure at B in the middle;

[0027] Figure 6 This is a schematic top view of the structure of a seed selection device for an agricultural sowing machine according to the present invention;

[0028] Figure 7 yes Figure 6 Schematic diagram of the enlarged structure at point C in the middle.

[0029] In the figure: 1. Shell; 2. Feed hopper; 3. Filter plate; 4. Selection assembly; 41. Partition plate; 42. Guide plate; 43. Sleeve; 44. Selection roller; 45. Rubber strip; 46. Selection hole; 47. First motor; 48. Belt; 49. Pulley; 410. Collection chamber; 411. Selection chamber; 5. Toggle assembly; 51. Reciprocating screw; 52. Reciprocating block; 53. Stabilizing rod; 54. Telescopic rod; 55. Spring; 56. Toggle block; 57. Rubber edge; 58. Rectangular through hole; 6. Cleaning assembly; 61. Reciprocating screw; 62. Slider; 63. Mounting plate; 64. Groove; 65. Cleaning brush; 66. Bump; 67. Fixing plate; 68. Second motor; 7. Exhaust fan; 8. Filter bag; 9. Filter screen. Implementation Method

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention. Example 1

[0031] See also Figure 1 - Figure 7As shown, the present invention is a seed selection device for agricultural sowing machinery, comprising a shell 1, a feed hopper 2 is fixedly mounted on the top of the shell 1, filter plates 3 are obliquely mounted on the inner walls on both sides of the shell 1, the filter plates 3 play a role in filtering impurities in the beans, the filter plates 3 are mounted below the feed hopper 2, an exhaust fan 7 is connected and mounted on the side of the shell 1 close to the feed hopper 2, a filter bag 8 is mounted on the side of the exhaust fan 7 away from the shell 1, the filter bag 8 plays a role in filtering dust, a filter screen 9 is fixedly mounted on the side of the exhaust fan 7 close to the filter plate 3, the filter screen 9 plays a role in filtering husks, avoiding damage to the exhaust fan 7 as much as possible, which is conducive to extending the service life of the device, a seed selection component 4 is arranged in the shell 1, the seed selection component 4 includes a seed selection roller 44, and the shell 1 on both sides A partition plate 41 is fixedly installed on the inner wall, and the partition plate 41 is installed below the filter plate 3. A guide plate 42 is fixedly installed on the side corresponding to the partition plate 41 and the inner wall of the shell 1. The guide plate 42 is convenient for concentrating the filtered beans on the selection roller 44 to facilitate the selection operation. The selection roller 44 is installed on the inner walls on both sides of the shell 1. A sleeve 43 is nested on the selection roller 44. Both the sleeve 43 and the selection roller 44 are provided with selection holes 46. The diameters of the selection holes 46 on the selection roller 44 and the selection holes 46 on the sleeve 43 are different, which is conducive to improving the flexibility of the device in selecting seeds. Whether to nest the sleeve 43 on the selection roller 44 is selected according to people's needs. The sleeve 43 is fixed to the selection roller 44 by screws. A first electric Machine 47, two pulleys 49 are rotatably installed on one side of the shell 1 close to the first motor 47, and a belt 48 is installed between the two pulleys 49. A rubber strip 45 is fixedly installed at the corresponding end of the two guide plates 42. The rubber strip 45 plays a role in protecting the beans and avoids damage to the beans caused by external forces as much as possible. The selection roller 44 is installed between the two guide plates 42. One side of the rubber strip 45 slides and fits with the outer surface of the selection roller 44 to seal the gap and avoid side leakage of beans as much as possible. The rotating shaft of one of the pulleys 49 slides through the shell 1 and is fixedly installed on the selection roller 44. The output end of the first motor 47 is fixedly installed on the same pulley 49. The end of the shell 1 away from the filter plate 3 is provided with a selection chamber 411 and a collection chamber. 410, the seed selection chamber 411 is opened above the guide plate 42, and the seed selection chamber 411 collects the beans after screening. The collection chamber 410 is opened below the guide plate 42. The collection chamber 410 is convenient for collecting the beans after selection and for storing beans of the same size, which are round and plump. When using the device, first start the first motor 47, and the first motor 47 drives one of the pulleys 49 to rotate. At the same time, one of the pulleys 49 drives another pulley 49 to rotate through the belt 48, and at the same time, the rotating shaft of one of the pulleys 49 drives the seed selection roller 44 to rotate, and at the same time, the beans fall into the seed selection hole 46, and at the same time, the seed selection roller 44 drives the beans through the seed selection hole 46 to rotate into the collection chamber 410, and at the same time, the rubber strip 45 slides on the surface of the seed selection roller 44.To adjust the size of the beans to be selected, the toggle block 56 is moved to press the telescopic rod 54 and the spring 55 upward, so that the telescopic rod 54 and the spring 55 are in a compressed state. The sleeve 43 is then moved and inserted into the selection roller 44. The toggle block 56 is then released to align the two selection holes 46. The sleeve 43 is then fixed to the selection roller 44 with screws, so that the selection roller 44 can easily select the beans in the selection cavity 411 into the collection cavity 410. This makes it easy to adjust the size of the selected beans and select beans of the same size that are round and plump. This facilitates the selection operation and avoids the situation where flattened and soaked beans enter the collection cavity 410. This helps improve the selection efficiency of the device and the adjustment capability of the device. Example 2

[0032] See also Figure 4 - Figure 7 As shown, on the basis of embodiment 1, a toggle assembly 5 is provided in the housing 1, and the toggle assembly 5 includes a toggle block 56. A reciprocating screw 51 is rotatably installed inside the housing 1 on both sides. A reciprocating block 52 is installed through the thread on the reciprocating screw 51. A telescopic rod 54 and a spring 55 are fixedly installed on the side of the reciprocating block 52 close to the seed selection roller 44. The telescopic rod 54 plays the role of supporting the spring 55. The toggle block 56 is fixedly installed on the end of the telescopic rod 54 away from the reciprocating block 52. The toggle block 56 is away from the spring 55. The spring 55 is fixedly mounted on the toggle block 56 on one side, and the spring 55 is nested on the outer surface of the telescopic rod 54. The side of the rubber edge 57 away from the toggle block 56 is slidably fitted with the outer surface of the seed selection roller 44. A rectangular through-hole 58 is provided on the rubber edge 57. The rectangular through-hole 58 is convenient for reducing the resistance of the beans and avoiding damage to the telescopic rod 54 as much as possible. When using the device, first start the first motor 47, so that the first motor 47 drives the other pulley 49 to rotate through the belt 48, and at the same time, the rotating shaft of the pulley 49 drives the reciprocating screw 51 to rotate. At the same time, the reciprocating screw 51 drives the reciprocating block 52 to slide on the stabilizing rod 53, and at the same time, the reciprocating block 52 drives the toggling block 56 to reciprocate through the telescopic rod 54 and the spring 55, and at the same time, the toggling block 56 drives the rubber edge 57 to slide on the seed selection roller 44, and at the same time, the beans pass through the rectangular through hole 58, so as to facilitate the reciprocating toggling of the beans that cannot enter the seed selection hole 46. The reciprocating toggling is beneficial to increasing the speed at which the beans enter the seed selection hole 46, thereby improving the working efficiency of the seed selection device and improving the toggling ability of the device. Example 3

[0033] See also Figure 2 - Figure 3 As shown, on the basis of embodiment 1 and embodiment 2, a cleaning assembly 6 is provided in the housing 1, and the cleaning assembly 6 includes a cleaning brush 65. A reciprocating screw rod 61 is rotatably mounted on the inner wall of the housing 1 near one end of the filter plate 3. A slider 62 is threadedly installed on the reciprocating screw rod 61. A mounting plate 63 is fixedly mounted on the side of the slider 62 near the partition plate 41. The side of the slider 62 away from the mounting plate 63 is slidably fitted with the inner wall of the housing 1. The cleaning brush 65 is mounted on the mounting plate 63, and the top surface of the cleaning brush 65 is in contact with the inner wall of the housing 1. The bottom surface of the filter plate 3 slides in contact, and the cleaning brush 65 cleans the dust clogged on the filter plate 3. A second motor 68 is fixedly installed on the side of the housing 1 away from the first motor 47. The output end of the second motor 68 slides through the housing 1 and is fixedly installed on the reciprocating screw 61. A groove 64 is provided on the side of the mounting plate 63 away from the filter plate 3. A protrusion 66 is installed in the groove 64 to facilitate the installation and removal of the protrusion 66 and the replacement of the cleaning brush 65. The cleaning brush 65 is fixedly installed near the protrusion 66. On one side of the filter plate 3, two fixing plates 67 are rotatably installed on one side of the filter plate 3 close to the protrusion 66. The two fixing plates 67 are rotatably installed on the two ends of the mounting plate 63 respectively. The fixing plates 67 play the role of limiting the fixing protrusion 66. When using the device, first, take the protrusion 66 to drive the cleaning brush 65 to be inserted into the groove 64, and at the same time, make the cleaning brush 65 slide through the groove 64 and contact the filter plate 3, and then rotate the fixing plate 67 to the protrusion 66 to facilitate the position of the fixing protrusion 66 in the groove 64. Then start the second motor 68, so that the output end of the second motor 68 drives the reciprocating screw 61 to rotate, and at the same time, the reciprocating screw 61 drives the mounting plate 63 to reciprocate through the slider 62, and at the same time, the mounting plate 63 drives the cleaning brush 65 to reciprocate on the bottom surface of the filter plate 3, so as to avoid the clogging of the filter plate 3 as much as possible, which is conducive to improving the filtering effect of the device, facilitating installation and disassembly, and facilitating replacement and cleaning of the cleaning brush 65, thereby improving the cleaning ability of the device and improving the working efficiency of the device. Example 4

[0034] See also Figure 1 - Figure 7 As shown, based on the first, second and third embodiments

[0035] A method for selecting a seed device for an agricultural sowing machine comprises the following steps;

[0036] First, start the exhaust fan 7, then pour the beans to be screened from the feed hopper 2 into the shell 1, and at the same time, filter the beans on the filter plate 3. The husks mixed in the beans are collected into the shell 1 under the action of the exhaust fan 7, and the dust is collected into the filter bag 8. At the same time, the filtered beans fall into the seed selection chamber 411, and then start the first motor 47 to drive the seed selection roller 44 to rotate, and at the same time, the beans fall into the seed selection hole 46, and fall into the collection chamber 410 under the rotation of the seed selection roller 44. At the same time, the first motor 47 drives the cleaning brush 65 to reciprocate on the filter plate 3 through the pulley 49 and the belt 48, so as to facilitate the selection of beans of the same size and roundness. Example 5

[0037] See also Figure 1 - Figure 7 As shown, this embodiment is obtained by combining Example 1, Example 2 and Example 3. First, the exhaust fan 7 is started, and then the beans to be screened are poured from the feed hopper 2 into the shell 1. At the same time, the beans are filtered on the filter plate 3. The husks mixed in the beans are collected into the shell 1 under the action of the exhaust fan 7, and the dust is collected into the filter bag 8. Then, the seed selection component 4 and the toggle component 5 are started to drive the beans for seed selection. Finally, the cleaning component 6 is operated to clean the filter plate 3.

[0038] The working principle of the present invention is as follows: when using the device, first, take the toggle block 56 and squeeze the telescopic rod 54 and the spring 55 upward to compress the telescopic rod 54 and the spring 55, then take the sleeve 43 and insert it into the seed selection roller 44, then loosen the toggle block 56 to make the two seed selection holes 46 correspond to each other, then fix the sleeve 43 on the seed selection roller 44 with screws, then start the exhaust fan 7, and then pour the beans to be screened from the feed hopper 2 into the shell 1, and at the same time make the beans be filtered on the filter plate 3. The impure husks are collected into the housing 1 under the action of the exhaust fan 7, and the dust is collected into the filter bag 8. At the same time, the filtered beans fall into the seed selection chamber 411, and then the first motor 47 is started. The first motor 47 drives one of the pulleys 49 to rotate, and at the same time, one of the pulleys 49 drives another pulley 49 to rotate through the belt 48, and at the same time, the rotating shaft of one of the pulleys 49 drives the seed selection roller 44 to rotate, and at the same time, the beans fall into the seed selection hole 46, and at the same time, the seed selection roller 44 passes through the selection hole 46. The seed hole 46 drives the beans to rotate into the collecting chamber 410, and at the same time, the rubber strip 45 slides on the surface of the seed selection roller 44, and at the same time, the rotating shaft of another pulley 49 drives the reciprocating screw 51 to rotate, and at the same time, the reciprocating screw 51 drives the reciprocating block 52 to slide on the stabilizing rod 53, and at the same time, the reciprocating block 52 drives the toggle block 56 to reciprocate through the telescopic rod 54 and the spring 55, and at the same time, the toggle block 56 drives the rubber edge 57 to slide on the seed selection roller 44, and at the same time, the beans pass through the rectangular through hole 58, and then are taken away. The protrusion 66 drives the cleaning brush 65 to be inserted into the groove 64, and at the same time, the cleaning brush 65 slides through the groove 64 and contacts the filter plate 3, and then the fixing plate 67 is rotated to the protrusion 66 to facilitate limiting the position of the fixing protrusion 66 in the groove 64, and then the second motor 68 is started, so that the output end of the second motor 68 drives the reciprocating screw 61 to rotate, and at the same time, the reciprocating screw 61 drives the mounting plate 63 to reciprocate through the slider 62, and at the same time, the mounting plate 63 drives the cleaning brush 65 to reciprocate and clean the bottom surface of the filter plate 3.

[0039] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A seed selection device for an agricultural sowing machine, comprising a housing (1), characterized in that: A feed hopper (2) is fixedly mounted on the top of the shell (1), filter plates (3) are obliquely mounted on the inner walls of both sides of the shell (1), and the filter plates (3) are mounted below the feed hopper (2). An exhaust fan (7) is connected and mounted on the side of the shell (1) close to the feed hopper (2), a filter bag (8) is mounted on the side of the exhaust fan (7) away from the shell (1), and a filter screen (9) is fixedly mounted on the side of the exhaust fan (7) close to the filter plate (3). A seed selection component (4) is provided in the shell (1), and the seed selection component (4) includes a seed selection roller (44). A partition plate (41) is fixedly mounted on the inner walls of both sides of the shell (1), a guide plate (42) is fixedly mounted on the side of the partition plate (41) corresponding to the inner wall of the shell (1), the seed selection roller (44) is mounted on the inner walls of both sides of the shell (1), a sleeve (43) is nested on the seed selection roller (44), and seed selection holes (46) are provided on the sleeve (43) and the seed selection roller (44), a first motor (47) is fixedly mounted on one side of the shell (1), and two pulleys (49) are rotatably mounted on the side of the shell (1) close to the first motor (47); A toggle assembly (5) is provided in the housing (1), and the toggle assembly (5) includes a toggle block (56). Reciprocating screws (51) are rotatably mounted on the interior of both sides of the housing (1), and a reciprocating block (52) is threadedly mounted on the reciprocating screw (51). A telescopic rod (54) and a spring (55) are fixedly mounted on the side of the reciprocating block (52) close to the seed selection roller (44). The toggle block (56) is fixedly mounted on one end of the telescopic rod (54) away from the reciprocating block (52), and a rubber edge (57) is fixedly mounted on the side of the toggle block (56) away from the spring (55). The rotating shaft of the other pulley (49) slides through the housing (1) and is fixedly mounted on the reciprocating screw (51); A stabilizing rod (53) is installed on the reciprocating block (52) and is slidably passed through. Both ends of the stabilizing rod (53) are fixedly installed on the inner wall of the housing (1). The side of the spring (55) away from the reciprocating block (52) is fixedly installed on the toggle block (56). The spring (55) is nested on the outer surface of the telescopic rod (54). The side of the rubber edge (57) away from the toggle block (56) is slidably fitted with the outer surface of the seed selection roller (44). A rectangular through hole (58) is opened on the rubber edge (57).

2. A seed selection device for agricultural sowing machinery according to claim 1, characterized in that: A belt (48) is installed between the two pulleys (49), a rubber strip (45) is fixedly installed at one end corresponding to the two guide plates (42), and the seed selection roller (44) is installed between the two guide plates (42), and one side of the rubber strip (45) is slidably fitted with the outer surface of the seed selection roller (44).

3. The seed selection device for agricultural sowing machinery according to claim 2, characterized in that: The rotating shaft of one of the pulleys (49) slides through the housing (1) and is fixedly mounted on the seed selection roller (44), and the output end of the first motor (47) is fixedly mounted on the same pulley (49).

4. The seed selection device for agricultural sowing machinery according to claim 3, characterized in that: A seed selection chamber (411) and a collection chamber (410) are provided at one end of the housing (1) away from the filter plate (3); the seed selection chamber (411) is provided above the material guide plate (42), and the collection chamber (410) is provided below the material guide plate (42).

5. The seed selection device for agricultural sowing machinery according to claim 4, characterized in that: A cleaning assembly (6) is provided in the housing (1), and the cleaning assembly (6) includes a cleaning brush (65). A reciprocating screw (61) is rotatably mounted on the inner wall of the housing (1) at one end close to the filter plate (3). A slider (62) is threadedly mounted on the reciprocating screw (61). A mounting plate (63) is fixedly mounted on the side of the slider (62) close to the partition plate (41). The cleaning brush (65) is mounted on the mounting plate (63). A second motor (68) is fixedly mounted on the side of the housing (1) away from the first motor (47). The output end of the second motor (68) slides through the housing (1) and is fixedly mounted on the reciprocating screw (61).

6. The seed selection device for agricultural sowing machinery according to claim 5, characterized in that: A groove (64) is provided on a side of the mounting plate (63) away from the filter plate (3), a protrusion (66) is installed in the groove (64), the cleaning brush (65) is fixedly installed on a side of the protrusion (66) close to the filter plate (3), and two fixed plates (67) are rotatably installed on a side of the filter plate (3) close to the protrusion (66), and the two fixed plates (67) are rotatably installed on both ends of the mounting plate (63).

7. A method for selecting a seed device for an agricultural sowing machine, characterized in that: The seed selection device for agricultural sowing machinery according to claim 6 comprises the following steps: First, the exhaust fan (7) is started, and then the beans to be screened are poured from the feed hopper (2) into the housing (1), and the beans are filtered on the filter plate (3). The husks mixed in the beans are collected into the housing (1) under the action of the exhaust fan (7), and the dust is collected into the filter bag (8). At the same time, the filtered beans fall into the seed selection chamber (411), and then the first motor (47) is started to drive the seed selection roller (44) to rotate, and at the same time, the beans fall into the seed selection hole (46). Under the rotation of the seed selection roller (44), the beans fall into the collection chamber (410). At the same time, the first motor (47) drives the cleaning brush (65) to reciprocate on the filter plate (3) through the pulley (49) and the belt (48), so that the beans of the same size, round and full, are selected.

Images