Sieving and impurity removing device for wheat seeds

Abstract

The utility model relates to the technical field of wheat seed impurity removal, and provides a wheat seed screening impurity removal device which comprises a mounting frame and a double-layer screen, a motor is mounted on the mounting frame, the output end of the motor is connected with a first driving wheel through a coupler, the first driving wheel is coaxially arranged, a connecting rod is rotatably mounted on the mounting frame, and the connecting rod is connected with a second driving wheel through a coupler. A first driven wheel and a driving bevel gear are fixedly arranged on the peripheral face of a connecting rod in a sleeving mode, a protective cover is fixedly connected to the top of a mounting frame through screws, wheat seeds are fed from a feeding opening through arrangement of a top rod, the connecting rod and other structures, a motor is started, the motor drives fan blades to rotate, and the fan blades are driven to rotate; according to the technical scheme, impurities in wheat seeds are blown away through wind formed by rotation of the fan blades, meanwhile, the connecting rod drives the double-layer screen to move in a reciprocating mode through the ejector rod to screen the wheat seeds and store the wheat seeds according to the size, and through the technical scheme, the problems that in the prior art, classification cannot be achieved, and the impurities cannot be treated in time are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of wheat seed impurity removal, and specifically relates to a screening impurity removal device for wheat seeds. Background Art

[0002] Wheat seed screening and impurity removal is an agricultural technology used to remove impurities from wheat seeds to improve the purity and quality of the seeds. After the wheat is harvested, the seeds usually contain some impurities, such as wheat straw, wheat stalks and other crop seeds. In order to improve the quality and purity of the seeds, they need to be screened and impurities removed. During the screening process, sieves or vibrating screens are usually used to separate seeds and impurities of different sizes and shapes. Smaller impurities and dust will be screened out, while larger pure seeds will pass through the sieve. In addition, air separation, specific gravity and other methods can be used to further remove impurities. The air separation method uses wind power to separate light impurities and heavy seeds, and the specific gravity method uses the principle of different specific gravities of different substances for separation.

[0003] In the prior art, the authorization announcement number is: CN217646903U, a screening and impurity removal device for wheat seeds, which includes a box body, a feeding pipe connected to the top of the box body, a partition installed inside the box body, a blowing component arranged inside the box body for removing organic impurities in the wheat seeds, and a feeding component arranged inside the feeding pipe for preventing the feeding pipe from being blocked. The blowing component of the patent can effectively separate the organic impurities in the wheat seeds and screen them, thereby improving the purity of the wheat seeds, and the setting of the feeding component can prevent the wheat seeds from being blocked inside the feeding pipe, ensuring the impurity removal efficiency. The patent has a reasonable structure and is easy to operate, which improves the purity and germination rate of the wheat seeds and helps to improve the yield and quality of crops;

[0004] However, this patent cannot classify the wheat seeds according to their size when removing impurities from the wheat seeds, and subsequent classification will increase the workload. In addition, this patent cannot observe the impurity collection situation in real time and cannot remove and process the impurities in time.

[0005] In the prior art, there is a screening and impurity removal device for wheat seeds with application announcement number: CN113318967A and a method of using the same. The patent includes a base frame, a feeding assembly and a screening assembly. The feeding assembly and the screening assembly are both located above the base frame, and the screening assembly is located on one side of the feeding assembly. The device has a screen box with a cover plate on the top, and a plurality of connecting seats 2 on both sides of the screen box. The cover plate can protect the items in the screen box, and the connecting seat 2 enhances the structural stability of the screen box. At the bottom of the screen box, there is a connecting seat 1 with two vibration motors installed on it. There are also a discharge port 1 and a discharge port 2 at the bottom of the screen box. The two discharge ports are used for separating wheat seeds and impurities respectively. After being screened by the screen, the wheat seeds will flow out from the discharge port 1, and the impurities will fall off the screen and flow out from the discharge port 2. This design ensures that the wheat seeds and impurities can be completely separated, and ensures the thoroughness of the separation.

[0006] However, the patent still fails to classify wheat seeds according to their size, and wheat seeds can be used for different purposes according to their size. Utility Model Content

[0007] The utility model provides a sieving and impurity removing device for wheat seeds, which solves the problems in the related art that classification cannot be achieved and impurities cannot be processed in time.

[0008] The technical solution of the utility model is as follows:

[0009] A wheat seed screening and impurity removal device, comprising a mounting frame and a double-layer screen, wherein a motor is mounted on the mounting frame, and an output end of the motor is connected to a first driving wheel coaxially arranged through a coupling, a connecting rod is rotatably mounted on the mounting frame, and a first driven wheel and a driving bevel gear are fixedly sleeved on the outer circumference of the connecting rod, a protective cover is fixedly connected to the top of the mounting frame through screws, a fixing block is fixedly connected to one side of the protective cover through screws, a cross bar is rotatably mounted inside the fixing block, and a driven bevel gear and a second driving wheel are fixedly sleeved on the outer circumference of the cross bar, a round rod is rotatably mounted inside the protective cover, and a second driven wheel and a fan blade are fixedly sleeved on the outer circumference of the round rod, and a screening device is arranged on the mounting frame;

[0010] The screening device includes a connecting rod, which is fixedly connected to one end of the connecting rod by screws, and the connecting rod and the double-layer screen are jointly movably hinged with a top rod. Four symmetrically arranged wheels are rotatably installed at the bottom of the double-layer screen, and the top of the protective cover is fixedly connected to a feed port by screws, and a blanking plate is welded on the mounting frame.

[0011] Preferably, a collection box is fixedly connected to one side of the mounting frame by screws, a drawer is slidably mounted inside the collection box, an observation window is installed inside the drawer, the observation window is made of acrylic board, and an air outlet net is fixedly connected to the inside of the collection box by screws.

[0012] Preferably, a first belt is sleeved on the outer circumference of the first driving wheel and the first driven wheel, a transverse groove is provided inside the fixing block, and the transverse rod is rotatably installed inside the transverse groove, and the transverse groove makes the rotation of the transverse rod more stable.

[0013] Preferably, a second belt is sleeved on the outer circumference of the second driving wheel and the second driven wheel, a circular groove is opened inside the protective cover, and the round rod is rotatably installed inside the circular groove, and the circular groove makes the rotation of the round rod more stable.

[0014] Preferably, a rotation groove is provided inside the mounting frame, and the connecting rod is rotatably mounted inside the rotation groove, and the rotation groove makes the rotation of the connecting rod more stable.

[0015] Preferably, a sliding groove is provided inside the collection box, and the drawer is slidably connected inside the sliding groove, and the sliding groove enables the drawer to slide more stably.

[0016] The working principle and beneficial effects of the utility model are:

[0017] 1. The utility model is provided with structures such as a push rod and a connecting rod. Wheat seeds are put into the feed port, and the motor is started. The motor drives the fan blades to rotate. The wind formed by the rotation of the fan blades blows away the impurities in the wheat seeds. At the same time, the connecting rod drives the double-layer screen to move back and forth through the push rod to screen the wheat seeds and collect them according to size. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of the utility model from another perspective;

[0021] Figure 3 This is a schematic diagram of the double-layer screen and mounting frame structure of the utility model.

[0022] In the figure: 1. mounting frame; 2. motor; 3. first driving wheel; 4. first belt; 5. first driven wheel; 6. driving bevel gear; 7. driven bevel gear; 8. cross bar; 9. fixing block; 10. second driven wheel; 11. second belt; 12. connecting rod; 13. round rod; 14. fan blade; 15. collecting box; 16. drawer; 17. observation window; 18. air outlet net; 19. double-layer screen; 20. rotating wheel; 21. unloading plate; 22. vertical block; 23. screw; 24. anti-sliding block; 25. protective cover; 26. feeding port; 27. connecting rod; 28. ejector rod. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1

[0025] like Figure 1~Figure 3 As shown, this embodiment proposes a mounting frame 1 and a double-layer screen 19, a motor 2 is mounted on the mounting frame 1, and the output end of the motor 2 is connected to a coaxially arranged first driving wheel 3 through a coupling, a connecting rod 12 is rotatably mounted on the mounting frame 1, and a first driven wheel 5 and a driving bevel gear 6 are fixedly sleeved on the outer circumference of the connecting rod 12, a protective cover 25 is fixedly connected to the top of the mounting frame 1 by screws, a fixing block 9 is fixedly connected to one side of the protective cover 25 by screws, a cross bar 8 is rotatably mounted inside the fixing block 9, and a driven bevel gear 7 and a second driving wheel are fixedly sleeved on the outer circumference of the cross bar 8, a round rod 13 is rotatably mounted inside the protective cover 25, and a second driven wheel 10 and a fan blade 14 are fixedly sleeved on the outer circumference of the round rod 13, and a second driven wheel 10 and a fan blade 14 are fixedly sleeved on the outer circumference of the round rod 13, and a second driven wheel 10 and a fan blade 14 are fixedly sleeved on the outer circumference of the second driven wheel 10 and a fan blade 14 are fixedly sleeved on the mounting frame 1. A screening device is provided, which includes a connecting rod 27, which is fixedly connected to one end of the connecting rod 12 by screws, a top rod 28 is movably hinged on the connecting rod 27 and the double-layer screen 19, four symmetrically arranged wheels 20 are rotatably installed on the bottom of the double-layer screen 19, a feed port 26 is fixedly connected to the top of the protective cover 25 by screws, a blanking plate 21 is welded on the mounting frame 1, wheat seeds are put into the feed port 26 through the arrangement of the top rod 28, the connecting rod 27 and other structures, the motor 2 is started, the motor 2 drives the fan blades 14 to rotate, the wind formed by the rotation of the fan blades 14 blows away the impurities in the wheat seeds, and at the same time, the connecting rod 27 drives the double-layer screen 19 to move back and forth through the top rod 28 to screen the wheat seeds, and collect them according to size.

[0026] like Figure 1~Figure 2As shown, the first belt 4 is sleeved on the outer circumferences of the first driving wheel 3 and the first driven wheel 5, a transverse groove is provided inside the fixing block 9, and the transverse rod 8 is rotatably installed inside the transverse groove.

[0027] like Figure 1~Figure 2 As shown, the second belt 11 is sleeved on the outer circumference of the second driving wheel and the second driven wheel 10, a circular groove is opened inside the protective cover 25, and the round rod 13 is rotatably installed inside the circular groove.

[0028] like Figure 1~Figure 2 As shown, a rotation groove is provided inside the mounting frame 1, and the connecting rod 12 is rotatably mounted inside the rotation groove.

[0029] In this embodiment, the motor 2 is first started, and the output shaft of the motor 2 drives the first driving wheel 3 to rotate, the first driving wheel 3 drives the first driven wheel 5 to rotate through the first belt 4, the first driven wheel 5 drives the connecting rod 12 to rotate, the connecting rod 12 drives the connecting rod 27 and the driving bevel gear 6 to rotate at the same time, the driving bevel gear 6 drives the cross bar 8 to rotate through the driven bevel gear 7, the cross bar 8 drives the second driving wheel to rotate, the second driving wheel drives the second driven wheel 10 to rotate through the second belt 11, the second driven wheel 10 drives the fan blades 14 to rotate through the round rod 13 to form an airflow, the wheat seeds to be removed from the feed port 26, the airflow blows away the impurities in the wheat seeds, when the wheat seeds fall on the double-layer screen 19, the connecting rod 27 rotates through the top rod 28 to drive the double-layer screen 19 to move back and forth, the wheat seeds are screened, and the wheat seeds of different sizes are classified and stored.

[0030] Example 2

[0031] like Figure 1~Figure 3 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that one side of the mounting frame 1 is fixedly connected with a collecting box 15 by screws, the interior of the collecting box 15 is slidingly equipped with a drawer 16, the interior of the drawer 16 is installed with an observation window 17, the material of the observation window 17 is an acrylic board, and the interior of the collecting box 15 is fixedly connected with an air outlet net 18 by screws.

[0032] like Figure 1~Figure 2 As shown, a sliding groove is provided inside the collection box 15, and the drawer 16 is slidably connected inside the sliding groove.

[0033] In this embodiment, the impurities blown away fall into the drawer 16 inside the collection box 15. The amount of impurities stored inside the drawer 16 can be observed in real time through the observation window 17, and the impurities can be taken out in time according to the storage amount to prevent excessive impurities from falling out of the drawer 16 and polluting the environment.

[0034] In addition, a number of symmetrically arranged vertical blocks 22 are welded on the mounting frame 1, and a screw rod 23 is threadedly installed inside the plurality of vertical blocks 22, and an anti-sliding block 24 is welded to the bottom of the screw rod 23. Since the rural ground is generally cast in an inclined shape, it is conducive to drainage. The screw rod 23 is rotated according to the inclination of the ground where the mounting frame 1 is placed, and the distance between the anti-sliding block 24 and the mounting frame 1 is adjusted, so that the mounting frame 1 can always remain horizontal and be more stable when used. At the same time, the anti-sliding block 24 can increase the contact area and increase the friction.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wheat seed screening and impurity removal device, comprising a mounting frame (1) and a double-layer screen (19), characterized in that: The mounting frame (1) is mounted with a motor (2), the output end of the motor (2) being connected to a first driving wheel (3) coaxially arranged via a coupling, a connecting rod (12) being rotatably mounted on the mounting frame (1), the outer circumference of the connecting rod (12) being respectively fixedly sleeved with a first driven wheel (5) and a driving bevel gear (6), a protective cover (25) being fixedly connected to the top of the mounting frame (1) via screws, a fixing block (9) being fixedly connected to one side of the protective cover (25) via screws, a cross bar (8) being rotatably mounted inside the fixing block (9), the outer circumference of the cross bar (8) being respectively fixedly sleeved with a driven bevel gear (7) and a second driving wheel, a round rod (13) being rotatably mounted inside the protective cover (25), the outer circumference of the round rod (13) being respectively fixedly sleeved with a second driven wheel (10) and a fan blade (14), and a screening device being arranged on the mounting frame (1); The screening device comprises a connecting rod (27), wherein the connecting rod (27) is fixedly connected to one end of the connecting rod (12) by means of screws, a top rod (28) is movably hingedly connected to the connecting rod (27) and the double-layer screen (19), four symmetrically arranged rotating wheels (20) are rotatably mounted at the bottom of the double-layer screen (19), a feed port (26) is fixedly connected to the top of the protective cover (25) by means of screws, and a feed plate (21) is welded to the mounting frame (1).

2. A wheat seed screening and impurity removal device according to claim 1, characterized in that: A collection box (15) is fixedly connected to one side of the mounting frame (1) by means of screws, a drawer (16) is slidably mounted inside the collection box (15), an observation window (17) is mounted inside the drawer (16), the observation window (17) is made of acrylic board, and an air outlet net (18) is fixedly connected to the inside of the collection box (15) by means of screws.

3. A wheat seed screening and impurity removal device according to claim 1, characterized in that: A first belt (4) is sleeved on the outer circumferences of the first driving wheel (3) and the first driven wheel (5), a transverse groove is provided inside the fixing block (9), and the transverse rod (8) is rotatably mounted inside the transverse groove.

4. A wheat seed screening and impurity removal device according to claim 1, characterized in that: A second belt (11) is sleeved on the outer circumference of the second driving wheel and the second driven wheel (10), a circular groove is provided inside the protective cover (25), and the round rod (13) is rotatably mounted inside the circular groove.

5. The wheat seed screening and impurity removal device according to claim 1, characterized in that: A rotation groove is provided inside the mounting frame (1), and the connecting rod (12) is rotatably mounted inside the rotation groove.

6. A wheat seed screening and impurity removal device according to claim 2, characterized in that: A sliding groove is provided inside the collection box (15), and the drawer (16) is slidably connected inside the sliding groove.

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