Grain seed specific gravity classificator

Abstract

The invention discloses a grain seed specific gravity classificator, and belongs to the technical field of grain seed specific gravity classificators, the grain seed specific gravity classificator comprises a base, an air chamber, a fan, a bearing frame, a coaming, a specific gravity sieve, a vibration mechanism and a buffer mechanism, the air chamber is installed on the base, the fan is used for generating air and installed in the air chamber, the bearing frame is located above the base, and the coaming is located above the bearing frame. The bearing frame is arranged on the base and connected to the base through the vibration mechanism, the surrounding plate is installed between the base and the bearing frame, the specific gravity screen is fixed to the bearing frame, and the buffering mechanism is located in the surrounding plate. A tower spring structure is replaced by the first spring steel plate, force generated by movement of the specific gravity screen can be better counteracted, meanwhile, the first spring steel plate can be installed in the surrounding plate through the upper connecting frame and the lower connecting frame, the first spring steel plate is not prone to being damaged by sundries in the grain seed workshop, and therefore the service life of the buffering mechanism is prolonged.

Description

Technical Field

[0001] This application relates to the technical field of seed screening, and in particular discloses a specific gravity separator for grain seeds. Background Art

[0002] A specific gravity separator is a large machine for screening seeds. The screening bed surface of the existing specific gravity separator has certain inclinations in both the length and width directions, which we respectively call the longitudinal inclination and the transverse inclination. During operation, the screening bed reciprocates under the action of the transmission mechanism. When the seeds fall on the screening bed, under the action of the air flow of the blower below, the seeds on the table are stratified, and the heavier seeds fall below the material.

[0003] In order to reduce the impact of the shaking of the specific gravity screen on the base, the existing specific gravity separators often set a buffer mechanism between the specific gravity screen and the base, that is, buffer through a tower spring structure. The impact of the specific gravity screen on the base is reduced through the tower spring structure. In order to reduce the outflow of gas between the base and the specific gravity screen, the existing specific gravity separators often set a baffle between the base and the specific gravity screen. At the same time, in order to facilitate the installation and fixation of the tower spring structure, the tower spring structure is often installed outside the baffle.

[0004] In view of the above related technologies, the inventor found that since the tower spring structure is arranged outside the baffle, sundries in the grain seed workshop are likely to damage the tower spring structure, thereby reducing the service life of the buffer mechanism. Summary of the Invention

[0005] In order to improve the service life of the buffer mechanism, this application provides a specific gravity separator for grain seeds.

[0006] A specific gravity separator for grain seeds provided by this application adopts the following technical solutions: A specific gravity separator for grain seeds includes a base, an air chamber, a blower, a receiving frame, a baffle, a specific gravity screen, a vibration mechanism, and a buffer mechanism. The air chamber is installed on the base. The blower is used to generate wind and is installed in the air chamber. The receiving frame is located above the base and is connected to the base through the vibration mechanism. The baffle is installed between the base and the receiving frame. The specific gravity screen is fixed on the receiving frame. The buffer mechanism is located inside the baffle; The buffer mechanism includes an upper connecting frame, a lower connecting frame, and a first spring steel plate. The upper connecting frame is installed at the bottom of the receiving frame. The lower connecting frame is fixed on the upper surface of the base. The first spring steel plate is inclined and fixed between the upper connecting frame and the lower connecting frame.

[0007] By adopting the above technical solution, the tower spring structure is replaced by the first spring steel plate, which can better offset the force generated by the movement of the specific gravity screen. At the same time, the first spring steel plate can be installed in the enclosure through the upper connecting frame and the lower connecting frame, so that the debris in the grain and seed workshop is not easy to damage the first spring steel plate, thereby improving the service life of the buffer mechanism.

[0008] Optionally, the upper connecting frame includes a first transverse tube, a first carbon steel plate and a first angle steel, the first transverse tube is fixed on the receiving frame, the first carbon steel plate is fixed on the side of the first transverse tube, and the top end of the first spring steel plate is fixed to the first carbon steel plate through the first angle steel.

[0009] By adopting the above technical solution, the top end of the first spring steel plate can be fixed on the receiving frame through the first transverse tube, the first carbon steel plate and the first angle steel, thereby fixing it on the specific gravity screen, making it easier to install the first angle steel on the receiving frame.

[0010] Optionally, the lower connecting frame includes a vertical pipe, a second horizontal pipe, a second carbon steel plate and a second angle steel, two vertical pipes are provided, the two vertical pipes are respectively located on both sides of the air chamber, and the vertical pipes are fixed to the upper surface of the base, the second horizontal pipe is fixed to the top of the vertical pipe, the second carbon steel plate is fixed to the side of the second horizontal pipe, and the lower end of the first spring steel plate is fixed to the second carbon steel plate through the second angle steel.

[0011] By adopting the above technical solution, the bottom end of the first spring steel plate can be fixed on the base through the vertical pipe, the second horizontal pipe, the second carbon steel plate and the second angle steel, which facilitates the installation of the first spring steel plate on the base.

[0012] Optionally, a connecting plate is fixed to the side of the vertical pipe, and the connecting plate is fixed to the enclosure plate on the side facing away from the vertical pipe.

[0013] By adopting the above technical solution, the enclosure and the vertical pipe are fixed by the connecting plate, and the installation points of the lower connecting frame are increased, thereby improving the connection stability of the lower connecting frame.

[0014] Optionally, the buffer mechanism is provided in multiple groups, and the multiple groups of buffer mechanisms are evenly arranged on the base.

[0015] By adopting the above technical solution, multiple groups of buffer mechanisms are arranged between the base and the receiving frame, which can better offset the force generated by the movement of the specific gravity screen, thereby improving the stability of the base.

[0016] Optionally, the vibration mechanism includes a driving motor, a rotating shaft, a transmission rod, a high-end connecting frame, and a low-end connecting frame. The driving motor is fixed on the base, the rotating shaft is rotatably installed on the base, and the output end of the rotating shaft is connected to the driving motor through a belt. There are two transmission rods, and the two transmission rods are connected to both ends of the rotating shaft through eccentric sleeves. One transmission rod is installed on the high-end connecting frame, and the other transmission rod is installed on the low-end connecting frame. Both the high-end connecting frame and the low-end connecting frame are connected to the base.

[0017] By adopting the above technical solution, when the driving motor is started, the driving motor can drive the rotating shaft to rotate. Under the action of the eccentric sleeve, the rotation of the rotating shaft can drive the transmission rod to swing, thereby driving the receiving frame to swing, and further driving the specific gravity sieve to swing, which is convenient for the specific gravity sieve to screen grain seeds.

[0018] Optionally, a second spring steel plate inclined is fixed at the bottom end of the high-end connecting frame, and the end of the second spring steel plate away from the high-end connecting frame is fixed on the base; a third spring steel plate inclined is fixed at the bottom end of the low-end connecting frame, and the end of the third spring steel plate away from the low-end connecting frame is fixed on the base.

[0019] By adopting the above technical solution, the second spring steel plate and the third spring steel plate can provide a guiding effect for the swing of the receiving frame, so that the receiving frame can only swing back and forth, thereby enabling the specific gravity sieve to swing back and forth, reducing the influence of the swing on the screening of grain seeds by the specific gravity sieve.

[0020] Optionally, a first tower spring with an inclination direction opposite to that of the second spring steel plate is fixed at the bottom end of the high-end connecting frame, and the end of the first tower spring away from the high-end connecting frame is fixed on the base; a second tower spring with an inclination direction opposite to that of the third spring steel plate is fixed at the bottom end of the low-end connecting frame, and the end of the second tower spring away from the high-end connecting frame is fixed on the base.

[0021] By adopting the above technical solution, the first tower spring and the second tower spring can reduce the vibration of the base, thereby improving the stability of the base.

[0022] Optionally, the base includes a bottom plate and a housing. The housing is fixed on the bottom plate. A plurality of ventilation openings are provided on the outer side surface of the housing. A ventilation plate is fixed at the ventilation openings of the housing, and an L-shaped ventilation hole is provided on the ventilation plate.

[0023] By adopting the above technical solution, the L-shaped ventilation hole is provided on the ventilation plate, which is convenient for the driving motor in the housing to dissipate heat, and at the same time, foreign matters in the outside are not easy to enter the housing to damage the driving motor.

[0024] Optionally, a plurality of uniformly arranged angle plates are fixed on the side surface of the bottom plate. The angle plates are threadedly connected with threaded legs, and feet are fixed at the bottom ends of the threaded legs.

[0025] By adopting the above technical solution, threaded legs are provided on the angle plate, and the lowest point height of the threaded legs can be adjusted by rotating the threaded legs, so that the base can be installed on the ground with different levels.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: By replacing the tower spring structure with the first spring steel plate, the force generated by the movement of the specific gravity sieve can be better offset. At the same time, the first spring steel plate can be installed in the enclosure through the upper connecting frame and the lower connecting frame, so that the sundries in the grain seed workshop are not easy to damage the first spring steel plate, thereby improving the service life of the buffer mechanism; The enclosure is fixed to the vertical pipe through the connecting plate, increasing the installation points of the lower connecting frame, thereby improving the connection stability of the lower connecting frame; Start the drive motor, and the drive motor can drive the rotating shaft to rotate. Under the action of the eccentric sleeve, the rotation of the rotating shaft can drive the transmission rod to swing, thereby driving the receiving frame to swing, and further driving the specific gravity sieve to swing, facilitating the screening of grain seeds by the specific gravity sieve. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of the present application.

[0028] Figure 2 is a schematic diagram of the structure of the present application with the specific gravity sieve and the enclosure hidden.

[0029] Figure 3 is a schematic diagram of the structure of the buffer mechanism of the present application.

[0030] Description of the reference numerals: 1, base; 11, bottom plate; 12, outer shell; 13, ventilation plate; 14, angle plate; 15, threaded leg; 16, foot; 2, air chamber; 3, fan; 4, receiving frame; 5, enclosure; 6, specific gravity sieve; 7, vibration mechanism; 71, drive motor; 72, rotating shaft; 73, transmission rod; 74, high-end connecting frame; 75, low-end connecting frame; 76, second spring steel plate; 77, third spring steel plate; 78, first tower spring; 79, second tower spring; 8, buffer mechanism; 81, upper connecting frame; 811, first horizontal pipe; 812, first carbon steel plate; 813, first angle steel; 82, lower connecting frame; 821, vertical pipe; 822, second horizontal pipe; 823, second carbon steel plate; 824, second angle steel; 825, connecting plate; 83, first spring steel plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The following will further describe the present application in detail with reference to the Figures 1-3 drawings.

[0032] The embodiment of the present application discloses a grain seed specific gravity separator. Refer toFigure 1 and Figure 2 , a specific gravity separator for grain seeds includes a base 1, an air chamber 2, a fan 3, a receiving frame 4, a surrounding plate 5, a specific gravity sieve 6, a vibration mechanism 7 and a buffer mechanism 8.

[0033] Referring to Figure 1 and Figure 2 , the base 1 includes a bottom plate 11, an outer shell 12, a ventilation plate 13, gusset plates 14, threaded legs 15 and feet 16. The outer shell 12 is fixed at the middle position of the upper surface of the bottom plate 11. A plurality of uniformly arranged ventilation openings are provided on the side surface of the outer shell 12. The ventilation plate 13 is fixedly installed at the ventilation openings of the outer shell 12. A plurality of uniformly arranged L-shaped ventilation holes are provided on the ventilation plate 13, which is convenient for the heat dissipation inside the outer shell 12, and at the same time, foreign matters from the outside are not easily introduced into the outer shell 12. There are multiple gusset plates 14. The multiple gusset plates 14 are uniformly fixedly installed on the outer side surface of the bottom plate 11. The threaded legs 15 are threadedly installed on the gusset plates 14. The feet 16 are fixed at the bottom ends of the threaded legs 15. By rotating the threaded legs 15, the height of the feet 16 can be adjusted so that the base 1 can be installed on the ground with different levels.

[0034] Referring to Figure 1 and Figure 2 , a plurality of uniformly arranged mounting openings are provided on the upper surface of the outer shell 12. The number of the air chambers 2 is the same as the number of the mounting openings. The air chamber 2 is provided with an upper opening for air outlet. The air chamber 2 is fixed at the mounting openings of the outer shell 12 by bolts. The fan 3 is installed inside the air chamber 2, and the fan 3 is used for generating wind. The receiving frame 4 is located above the base 1. The specific gravity sieve 6 is fixedly installed on the upper surface of the receiving frame 4. The surrounding plate 5 is fixed on the upper surface of the base 1 by bolts. The surrounding plate 5 is used to reduce the outflow of gas between the base 1 and the specific gravity sieve 6.

[0035] Referring to Figure 1 and Figure 2, the vibration mechanism 7 is used to drive the vibration mechanism 7, which includes a drive motor 71, a rotating shaft 72, a transmission rod 73, a high-end connecting frame 74, a low-end connecting frame 75, a second spring steel plate 76, a third spring steel plate 77, a first conical spring 78 and a second conical spring 79. The drive motor 71 is located inside the housing 12, and the drive motor 71 is fixedly installed on the upper surface of the bottom plate 11. The rotating shaft 72 is rotatably connected to the upper surface of the housing 12 through a bearing seat, and the rotating shaft 72 is connected to the output end of the drive motor 71 through a belt. There are two transmission rods 73, and the two transmission rods 73 are connected to both ends of the rotating shaft 72 through eccentric sleeves. One transmission rod 73 is installed on the high-end connecting frame 74, and the other transmission rod 73 is installed on the low-end connecting frame 75. The high-end connecting frame 74 is fixedly installed at the high end of the receiving frame 4. The low-end connecting frame 75 is fixedly installed at the low end of the receiving frame 4. When the drive motor 71 is started, the drive motor 71 can drive the rotating shaft 72 to rotate. Under the action of the eccentric sleeve, the rotation of the rotating shaft 72 can drive the transmission rod 73 to swing, thereby driving the receiving frame 4 to swing, and further driving the specific gravity sieve 6 to swing, which is convenient for the specific gravity sieve 6 to screen grain seeds.

[0036] Refer to Figure 1 and Figure 2 , both the second spring steel plate 76 and the third spring steel plate 77 are inclined, and the inclination directions of the second spring steel plate 76 and the third spring steel plate 77 are the same. One end of the second spring steel plate 76 is fixed to the high-end connecting frame 74 by bolts, and the other end of the second spring steel plate 76 is fixed to the top of the housing 12 by bolts. One end of the third spring steel plate 77 is fixed to the low-end connecting frame 75 by bolts, and the other end of the third spring steel plate 77 is fixed to the top of the housing 12 by bolts. The second spring steel plate 76 and the third spring steel plate 77 can provide a guiding effect for the swing of the receiving frame 4, so that the receiving frame 4 can only swing back and forth, so that the specific gravity sieve 6 can swing back and forth, reducing the influence of the swing on the screening of grain seeds by the specific gravity sieve 6. The first conical spring 78 and the second conical spring 79 are inclined in the same direction, and the inclination directions of the first conical spring 78 and the second conical spring 79 are opposite to the inclination direction of the second spring steel plate 76. One end of the first conical spring 78 is fixed to the high-end connecting frame 74 by bolts, and the other end of the first conical spring 78 is fixed to the top of the housing 12 by bolts. One end of the second conical spring 79 is fixed to the low-end connecting frame 75 by bolts, and the other end of the second conical spring 79 is fixed to the top of the housing 12 by bolts. The first conical spring 78 and the second conical spring 79 can reduce the vibration of the base 1, thereby improving the stability of the base 1.

[0037] Refer to Figure 2 and Figure 3, the buffer mechanism 8 is used to offset the force generated by the movement of the specific gravity screen 6. The buffer mechanism 8 is provided with multiple groups. Multiple groups of buffer structures are evenly arranged on the upper surface of the shell 12. The buffer mechanism 8 includes an upper connecting frame 81, a lower connecting frame 82 and a first spring steel plate 83. The upper connecting frame 81 includes a first transverse tube 811, a first carbon steel plate 812 and a first angle steel 813. The two ends of the first transverse tube 811 are welded and fixed to the two opposite inner walls of the receiving frame 4. The first carbon steel plate 812 is welded and fixed to the side of the first transverse tube 811. The first angle steel 813 is fixed by bolts to the side of the first carbon steel plate 812 away from the first transverse tube 811. The top of the first spring steel plate 83 is fixed to the first angle steel 813 by bolts.

[0038] Reference Figure 2 and Figure 3 , the lower connecting frame 82 includes a vertical pipe 821, a second transverse pipe 822, a second carbon steel plate 823, a second angle steel 824 and a connecting plate 825. Two vertical pipes 821 are provided, and the two vertical pipes 821 are respectively located on both sides of the air chamber 2, and the vertical pipes 821 are welded and fixed to the upper surface of the shell 12. The second transverse pipe 822 is welded and fixed to the top of the vertical pipe 821. The second carbon steel plate 823 is welded and fixed to the side of the second transverse pipe 822. The second angle steel 824 is fixed to the side of the second carbon steel plate 823 away from the second transverse pipe 822 by bolts. The bottom end of the first spring steel plate 83 is fixed to the second angle steel 824 by bolts. The first spring steel plate 83 is tilted, and the tilt direction of the first spring steel plate 83 is the same as the tilt of the second spring steel plate 76. The first spring steel plate 83 can be installed in the enclosure 5 through the upper connecting frame 81 and the lower connecting frame 82, so that the sundries in the grain seed workshop are not easy to damage the first spring steel plate 83, thereby improving the service life of the buffer mechanism 8. Two connecting plates 825 are provided, and the two connecting plates 825 are symmetrically arranged on both sides of the two vertical pipes 821. The connecting plate 825 is an L-shaped plate. One side of the connecting plate 825 is fixed to the vertical pipe 821 by bolts, and the other side of the connecting plate 825 is fixed to the inner side of the enclosure 5 by bolts. The installation points of the lower connecting frame 82 are increased, thereby improving the connection stability of the lower connecting frame 82.

[0039] The implementation principle of a specific gravity separator for grain seeds in an embodiment of this application is as follows: When screening grain seeds, the drive motor 71 is started, and the drive motor 71 drives the rotating shaft 72 to rotate. Under the action of the eccentric sleeve, the rotation of the rotating shaft 72 can drive the swing of the transmission rod 73. Under the action of the second spring steel plate 76 and the third spring steel plate 77, the swing of the transmission rod 73 drives the receiving frame 4 and the specific gravity sieve 6 to swing back and forth. This facilitates the specific gravity sieve 6 to screen grain seeds. During the screening process of grain seeds, the first spring steel plate 83 can offset the force generated by the movement of the specific gravity sieve 6 as much as possible, improving the installation stability of the base 1. At the same time, the first spring steel plate 83 can be installed within the enclosure 5 through the upper connecting frame 81 and the lower connecting frame 82, making it difficult for sundries in the grain seed workshop to damage the first spring steel plate 83, thereby extending the service life of the buffer mechanism 8.

[0040] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, any equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A specific gravity selection machine for grain seeds, characterized in that: The invention comprises a base (1), an air chamber (2), a fan (3), a receiving frame (4), a panel (5), a specific gravity screen (6), a vibration mechanism (7) and a buffer mechanism (8), wherein the air chamber (2) is mounted on the base (1), the fan (3) is used for generating wind, and the fan (3) is mounted in the air chamber (2), the receiving frame (4) is located above the base (1), and the receiving frame (4) is connected to the base (1) via the vibration mechanism (7), the panel (5) is mounted between the base (1) and the receiving frame (4), the specific gravity screen (6) is fixed on the receiving frame (4), and the buffer mechanism (8) is located in the panel (5); The buffer mechanism (8) comprises an upper connecting frame (81), a lower connecting frame (82) and a first spring steel plate (83); the upper connecting frame (81) is mounted on the bottom of the receiving frame (4); the lower connecting frame (82) is fixed to the upper surface of the base (1); and the first spring steel plate (83) is tilted and fixed between the upper connecting frame (81) and the lower connecting frame (82).

2. The gravity separator for grain seeds according to claim 1, wherein: The upper connecting frame (81) comprises a first transverse tube (811), a first carbon steel plate (812) and a first angle steel (813); the first transverse tube (811) is fixed to the receiving frame (4); the first carbon steel plate (812) is fixed to the side of the first transverse tube (811); and the top end of the first spring steel plate (83) is fixed to the first carbon steel plate (812) via the first angle steel (813).

3. The gravity separator for grain seeds according to claim 1, characterized in that: The lower connecting frame (82) comprises a vertical pipe (821), a second horizontal pipe (822), a second carbon steel plate (823) and a second angle steel (824), wherein two vertical pipes (821) are provided, and the two vertical pipes (821) are respectively located on both sides of the air chamber (2), and the vertical pipe (821) is fixed to the upper surface of the base (1), the second horizontal pipe (822) is fixed to the top of the vertical pipe (821), the second carbon steel plate (823) is fixed to the side of the second horizontal pipe (822), and the lower end of the first spring steel plate (83) is fixed to the second carbon steel plate (823) through the second angle steel (824).

4. The gravity separator for grain seeds according to claim 3, wherein: A connecting plate (825) is fixed to the side of the vertical pipe (821), and the connecting plate (825) is fixed to the enclosure plate (5) on a side facing away from the vertical pipe (821).

5. The specific gravity seed cleaner for grain seeds according to claim 1, wherein: The buffer mechanisms (8) are provided in multiple groups, and the multiple groups of buffer mechanisms (8) are evenly arranged on the base (1).

6. The gravity separator for grain seeds according to claim 1, wherein: The vibration mechanism (7) comprises a driving motor (71), a rotating shaft (72), a transmission rod (73), a high-end connecting frame (74) and a low-end connecting frame (75), wherein the driving motor (71) is fixed on the base (1), the rotating shaft (72) is rotatably mounted on the base (1), and the rotating shaft (72) is connected to the output end of the belt-driven motor (71), two transmission rods (73) are provided, and the two transmission rods (73) are connected to both ends of the rotating shaft (72) via an eccentric sleeve, one transmission rod (73) is mounted on the high-end connecting frame (74), and the other transmission rod (73) is mounted on the low-end connecting frame (75), and the high-end connecting frame (74) and the low-end connecting frame (75) are both connected to the base (1).

7. A specific gravity seed cleaner for grain seeds according to claim 6, characterized in that: A second spring steel plate (76) arranged obliquely is fixed to the bottom end of the high-end connecting frame (74), and one end of the second spring steel plate (76) facing away from the high-end connecting frame (74) is fixed to the base (1); a third spring steel plate (77) arranged obliquely is fixed to the bottom end of the low-end connecting frame (75), and one end of the third spring steel plate (77) facing away from the low-end connecting frame (75) is fixed to the base (1).

8. A specific gravity seed cleaner for grain seeds according to claim 7, characterized in that: A first tower spring (78) having an inclination direction opposite to that of the second spring steel plate (76) is fixed to the bottom end of the high-end connecting frame (74), and an end of the first tower spring (78) facing away from the high-end connecting frame (74) is fixed to the base (1); a second tower spring (79) having an inclination direction opposite to that of the third spring steel plate (77) is fixed to the bottom end of the low-end connecting frame (75), and an end of the second tower spring (79) facing away from the high-end connecting frame (74) is fixed to the base (1).

9. A specific gravity seed separator for grain seeds according to claim 6, characterized in that: The base (1) comprises a bottom plate (11) and an outer shell (12); the outer shell (12) is fixed on the bottom plate (11); a plurality of ventilation openings are provided on the outer side surface of the outer shell (12); a ventilation plate (13) is fixed on the outer shell (12) at the ventilation openings; and an L-shaped ventilation hole (131) is provided on the ventilation plate (13).

10. A specific gravity seed cleaner for grain seeds according to claim 9, characterized in that: A plurality of evenly distributed angle plates (14) are fixed to the side of the bottom plate (11); the angle plates (14) are threadedly connected to threaded legs (15); and a support foot (16) is fixed to the bottom end of the threaded legs (15).

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