Grain screening machine for grain storage

Abstract

The grain screening machine for grain storage comprises a machine base, an inlet and a screening tray, metal springs are fixedly installed at the upper end of the machine base, supporting legs are fixedly installed at the outer ends of the metal springs, the supporting legs are installed at the upper end of the machine base in a sliding mode, a fixing frame is fixedly installed at the right end of the machine base, and the screen tray is installed on the fixing frame. A servo motor is fixedly installed at the rear end of the fixing frame, an eccentric wheel is fixedly installed at the front end of the servo motor, a discharging channel is fixedly installed at the lower end of an inlet, an air blower box is fixedly installed at the front end of the discharging channel, and an air outlet pipe is fixedly installed at the rear end of the discharging channel. Grain and impurities can be output from two directions respectively, collection, operation and management are facilitated, the working efficiency is high, orderly and large-batch screening is facilitated, general impurities can be intercepted, chippings can be screened, husks and scraps can be cleaned, the purity of the grain is improved, and storage is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of grain screening machines, in particular to a grain screening machine for grain storage. Background Technique

[0002] Grain refers to the general term for edible grains, beans, and tubers, and can also be generally referred to as "cereals". Grain crops are the main food sources for humans. They are rich in nutrition, and the seeds contain less water and can be stored for a long time. Before storing grain, it is necessary to screen out broken sand, impurities, debris, etc. in the grain using a screening machine to facilitate storage.

[0003] As disclosed in a utility model with the authorization announcement number CN212596989U, a grain screening machine for grain storage can screen grains in detail and perfectly according to particle size, avoiding the situation that grains may not fall from the screening frame under a certain regular movement in the existing screening machine, resulting in imperfect grain screening.

[0004] The following problems still exist when using this existing technology:

[0005] It is not convenient to screen grains in large quantities quickly, and it is not convenient to collect impurities and grains separately and orderly. Therefore, we propose a grain screening machine for grain storage to solve the problems mentioned above. Content of the Utility Model

[0006] In order to overcome the deficiencies of the existing technology, the utility model provides a grain screening machine for grain storage, which can solve the technical problems that the existing grain screening machine for grain storage is not convenient to screen grains in large quantities quickly and is not convenient to collect impurities and grains separately and orderly mentioned in the above background technique.

[0007] To solve the above technical problems, the utility model provides the following technical solutions: a machine base, an inlet, and a sieve tray.

[0008] A metal spring is fixedly installed at the upper end of the machine base. The outer end of the metal spring is fixedly installed with a support leg. The support leg is slidably installed at the upper end of the machine base. A fixed frame is fixedly installed at the right end of the machine base. A servo motor is fixedly installed at the rear end of the fixed frame. An eccentric wheel is fixedly installed at the front end of the servo motor.

[0009] A blanking channel is fixedly installed at the lower end of the inlet. A blower box is fixedly installed at the front end of the blanking channel. An air outlet pipe is fixedly installed at the rear end of the blanking channel. A metal mesh plate is fixedly installed at the inner end of the inlet.

[0010] The sieve tray is fixedly installed at the upper end of the support legs. A guide plate is fixedly installed at the inner end of the sieve tray. A grain outlet is fixedly installed at the front end of the sieve tray. A metal tray is arranged at the lower end of the sieve tray.

[0011] As a preferred technical solution of the present utility model, the eccentric wheel is rotatably installed at the inner end of the fixed frame, and the eccentric wheel is located on the right side of the sieve tray.

[0012] As a preferred technical solution of the present utility model, mounting frames are fixedly installed at the front and rear ends of the machine base, and the inlet is fixedly installed at the inner end of the mounting frame.

[0013] As a preferred technical solution of the present utility model, both the blower box and the air outlet pipe are fixedly installed on the mounting frame.

[0014] As a preferred technical solution of the present utility model, a mounting plate is slidably installed at the inner end of the machine base, and the mounting plate is fixedly installed at the front and rear ends of the metal tray.

[0015] As a preferred technical solution of the present utility model, an arc plate is fixedly installed at the inner end of the metal tray, and an impurity outlet is opened at the rear end of the metal tray.

[0016] Compared with the prior art, the beneficial effects that the present utility model can achieve are:

[0017] 1. There are provided a fixed frame, a servo motor, an eccentric wheel, an inlet, a metal tray, a grain outlet and an impurity outlet. The servo motor on the fixed frame drives the sieve tray and the metal tray to vibrate and screen through the eccentric wheel. The grain is output through the grain outlet at the front side, and the impurity debris is output through the impurity outlet on the metal tray. It can make the grain and impurities be output from two directions respectively, which is convenient for collection and operation management, has high working efficiency, and is convenient for orderly large - batch screening;

[0018] 2. There are provided an inlet, a metal mesh plate, a blanking channel, an air outlet pipe and a blower box. The grain is added from the inlet. The metal mesh plate can intercept larger impurities. The husk debris in the grain is blown out by the blower box through the air outlet pipe. It can not only intercept large impurities, screen debris, but also clean the husk debris, improve the purity of the grain, and contribute to storage. Description of the Drawings

[0019] Figure 1 is a three - dimensional structure schematic diagram of the grain screening machine for grain storage of the present utility model;

[0020] Figure 2 is a three - dimensional structure schematic diagram of the grain screening machine for grain storage of the present utility model from the right - hand perspective;

[0021] Figure 3This is a three-dimensional structure schematic diagram of the rear view of the grain screening machine for grain storage of the present utility model;

[0022] Figure 4 This is a front view sectional structure schematic diagram of the grain screening machine for grain storage of the present utility model;

[0023] Among them: 1. Machine base; 2. Inlet; 3. Sieve plate; 4. Metal spring; 5. Support leg; 6. Fixed frame; 7. Servo motor; 8. Eccentric wheel; 9. Mounting plate; 10. Metal disk; 11. Arc plate; 12. Impurity outlet; 13. Feeding channel; 14. Air outlet pipe; 15. Blower box; 16. Mounting frame; 17. Metal mesh plate; 18. Guide plate; 19. Grain outlet. Specific implementation mode

[0024] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further elaborated below in conjunction with specific embodiments. However, the following embodiments are only the preferred embodiments of the present utility model and not all of them. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative labor all belong to the protection scope of the present utility model.

[0025] Embodiment

[0026] Please refer to Figures 1-4 As shown, the present utility model provides a technical solution: a grain screening machine for grain storage;

[0027] A metal spring 4 is fixedly installed at the upper end of the machine base 1. The outer end of the metal spring 4 is fixedly installed with a support leg 5. The support leg 5 is slidably installed at the upper end of the machine base 1. A fixed frame 6 is fixedly installed at the right end of the machine base 1. A servo motor 7 is fixedly installed at the rear end of the fixed frame 6. The front end of the servo motor 7 is fixedly installed with an eccentric wheel 8. The eccentric wheel 8 is rotatably installed at the inner end of the fixed frame 6. The eccentric wheel 8 is located on the right side of the sieve plate 3. Mounting frames 16 are fixedly installed at the front and rear ends of the machine base 1. The inlet 2 is fixedly installed at the inner end of the mounting frame 16. A mounting plate 9 is slidably installed at the inner end of the machine base 1. The mounting plate 9 is fixedly installed at the front and rear ends of the metal disk 10. An arc plate 11 is fixedly installed at the inner end of the metal disk 10. An impurity outlet 12 is opened at the rear end of the metal disk 10. The sieve plate 3 is fixedly installed at the upper end of the support leg 5. A guide plate 18 is fixedly installed at the inner end of the sieve plate 3. A grain outlet 19 is fixedly installed at the front end of the sieve plate 3. The metal disk 10 is arranged at the lower end of the sieve plate 3, which can make the grain and impurities be output from two directions respectively, facilitating collection and operation management, with high working efficiency and being convenient for orderly large-batch screening;

[0028] At the lower end of the inlet 2, a blanking channel 13 is fixedly installed. At the front end of the blanking channel 13, a blower box 15 is fixedly installed. At the rear end of the blanking channel 13, an air outlet pipe 14 is fixedly installed. Inside the inlet 2, a metal mesh plate 17 is fixedly installed. The blower box 15 and the air outlet pipe 14 are both fixedly installed on the mounting frame 16. It can not only intercept large impurities, screen debris, but also clean shell debris, improve the purity of grains, and contribute to storage.

[0029] Specific working principle:

[0030] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, when using this grain screening machine for grain storage, the grain is evenly and equally added from the inlet 2 by using a conveying mechanism or manually. Since the holes in the metal mesh plate 17 are relatively large, the grain can directly pass through the metal mesh plate 17. If there are large impurities such as straws and ear rods, they can be directly intercepted by the metal mesh plate 17, and the staff can directly pick up and remove the sundries. When the grain is falling, it will pass through the blanking channel 13. The blower box 15 at the front end of the blanking channel 13 can blow air into the interior of the blanking channel 13 in the direction of the air outlet pipe 14, blowing the grain shell debris out of the air outlet pipe 14. The staff can put a dense net on the end of the air outlet pipe 14 to collect the shell debris. The grain blown by the wind passes through the blanking channel 13 and falls to the upper end of the sieve tray 3. When the output end of the servo motor 7 rotates, it drives the eccentric wheel 8 to rotate. When the long radius of the eccentric wheel 8 rotates to contact the sieve tray 3, the eccentric wheel 8 pushes the sieve tray 3 and the metal tray 10 to move to the left. The support legs 5 supporting the sieve tray 3 and the mounting plate 9 supporting the metal tray 10 move left together with the sieve tray 3 and the metal tray 10, and the elastic force of the metal spring 4 is compressed. When the short radius direction of the eccentric wheel 8 rotates to contact the sieve tray 3, under the elastic force of the six groups of metal springs 4, the sieve tray 3 and the metal tray 10 move to the right. Moving regularly like this, the screening of the grain is realized. The grains meeting the particle size requirements move along the inclined slope of the sieve tray 3 to the left side of the sieve tray 3 and are output from the grain outlet 19 along the guide plate 18. Just place the pre-prepared grain collection box under the grain outlet 19. The impurities and debris etc. after being screened by the sieve tray 3 move to the left side of the metal tray 10 and are output from the impurity outlet 12 along the arc-shaped plate 11 for collection. The above completes a series of operations of this grain screening machine for grain storage. The content not described in detail in this description belongs to the prior art well-known to those skilled in the art.

[0031] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A grain screening machine for grain storage, comprising: a machine base (1), an inlet (2) and a sieve plate (3), characterized in that: A metal spring (4) is fixedly mounted on the upper end of the machine base (1), a support leg (5) is fixedly mounted on the outer end of the metal spring (4), the support leg (5) is slidably mounted on the upper end of the machine base (1), a fixing frame (6) is fixedly mounted on the right end of the machine base (1), a servo motor (7) is fixedly mounted on the rear end of the fixing frame (6), and an eccentric wheel (8) is fixedly mounted on the front end of the servo motor (7); A material discharge channel (13) is fixedly mounted at the lower end of the inlet (2), a blower box (15) is fixedly mounted at the front end of the material discharge channel (13), an air outlet pipe (14) is fixedly mounted at the rear end of the material discharge channel (13), and a metal mesh plate (17) is fixedly mounted at the inner end of the inlet (2); The sieve plate (3) is fixedly mounted on the upper end of the supporting leg (5), a guide plate (18) is fixedly mounted on the inner end of the sieve plate (3), a grain outlet (19) is fixedly mounted on the front end of the sieve plate (3), and a metal plate (10) is arranged on the lower end of the sieve plate (3).

2. A grain screening machine for grain storage according to claim 1, characterized in that: The eccentric wheel (8) is rotatably mounted on the inner end of the fixed frame (6), and the eccentric wheel (8) is located on the right side of the sieve plate (3).

3. A grain screening machine for grain storage according to claim 1, characterized in that: A mounting frame (16) is fixedly mounted on the front and rear ends of the machine base (1), and the inlet (2) is fixedly mounted on the inner end of the mounting frame (16).

4. A grain screening machine for grain storage according to claim 3, characterized in that: The blower box (15) and the air outlet pipe (14) are both fixedly mounted on the mounting frame (16).

5. The grain screening machine for grain storage according to claim 1, characterized in that: A mounting plate (9) is slidably mounted on the inner end of the machine base (1), and the mounting plate (9) is fixedly mounted on the front and rear ends of the metal plate (10).

6. A grain screening machine for grain storage according to claim 1, characterized in that: An arc-shaped plate (11) is fixedly mounted on the inner end of the metal disk (10), and an impurity outlet (12) is provided at the rear end of the metal disk (10).

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