Seed winnowing device

Abstract

The utility model discloses a seed winnowing device, which relates to the technical field of agricultural planting and comprises a winnowing barrel with a discharge hopper at the lower end. The positioning pipe penetrates through the side wall of one side of the winnowing barrel and is fixedly connected with the winnowing barrel; the fan is arranged at one end, extending out of the winnowing barrel, of the positioning pipe; the feeding pipe obliquely penetrates through the side wall of the winnowing barrel and communicates with the positioning pipe; the rotating barrel is located in the winnowing barrel, a pipe fitting at the air outlet end of the rotating barrel penetrates through the side wall of the winnowing barrel and is rotationally connected with the winnowing barrel, and the other port of the rotating barrel is rotationally butted with one end, extending into the winnowing barrel, of the positioning pipe; the baffles are annularly arranged and obliquely and fixedly connected to the inner wall of the rotating barrel; the discharging pipe is arranged on the rotating barrel and communicated with the rotating barrel, and a valve is arranged on the discharging pipe; the winnowing device has the advantages of convenience in use, good winnowing effect and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural planting, and particularly relates to a seed pneumatic separator. Background Art

[0002] In the process of agricultural planting, the harvested seeds can be used in the coming year, so it is necessary to process the seeds. The processing of seeds usually includes cleaning, sunning, and pneumatic separation. The role of pneumatic separation is to remove the impurities mixed in the seeds;

[0003] For example, the patent application number CN202322887680.0 discloses a crop seed pneumatic separator. This patent separates impurities from seeds by setting a pneumatic separation device 7. By placing a filter screen 708 of appropriate size in the annular groove 707, and using a suction fan 702 to collect air through the air inlet plate 5, and discharging the wind through the blowing plate 705 through the rotating shaft 703 to blow out the impurities, and discharging the impurities through the discharge pipe 8 with the cooperation of the blower 710, and stirring with the rotation of the motor box 701 and the fixed frame 704, so that the seeds can be easily separated and recycled;

[0004] After the existing seed pneumatic separation equipment is purchased, there are certain drawbacks in the actual use situation. The main problem is that the seeds are piled up, and it is difficult to completely suck away the impurities at the bottom even under stirring, so the impurity removal effect is poor, and it is necessary to perform impurity removal repeatedly for many times. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a seed pneumatic separator to solve the problem of poor impurity removal effect of the existing seed pneumatic separator described in the background art.

[0006] To achieve the above object, the utility model provides the following technical solutions: A seed pneumatic separator, comprising

[0007] A pneumatic separation barrel with a discharge hopper at the lower end;

[0008] A positioning pipe passing through one side wall of the pneumatic separation barrel and fixedly connected to the pneumatic separation barrel;

[0009] A fan arranged at one end of the positioning pipe extending out of the pneumatic separation barrel;

[0010] A feed pipe obliquely passing through the side wall of the pneumatic separation barrel and communicating with the positioning pipe;

[0011] A rotating barrel located inside the pneumatic separation barrel. The gas outlet end pipe fitting of the rotating barrel passes through the side wall of the pneumatic separation barrel and is rotatably connected to the pneumatic separation barrel. The other port of the rotating barrel is rotatably butted with one end of the positioning pipe extending into the pneumatic separation barrel;

[0012] A number of baffles arranged in a ring and obliquely fixedly connected to the inner wall of the rotating barrel;

[0013] The discharge pipe is arranged on the rotating barrel and communicated with the rotating barrel, and a valve is provided on the discharge pipe.

[0014] Preferably, a toothed ring is fixedly sleeved on the outer wall of the air outlet end pipe fitting of the rotating barrel, a servo motor is fixedly connected to the outer wall of the air separation barrel, and an output end of the servo motor is fixedly connected to a gear meshing with the toothed ring.

[0015] Preferably, a baffle is fixedly connected to the outer wall of the air separation barrel corresponding to the position of the air outlet end pipe fitting of the rotating barrel, the baffle covers the periphery of the air outlet end pipe fitting of the rotating barrel, and a detachable filter screen is arranged in the baffle.

[0016] Preferably, the inner wall of the open end of the baffle has internal threads, the filter screen is arranged on the inner wall of the externally threaded sleeve, and the externally threaded sleeve is threadedly connected with the internal threads.

[0017] The beneficial effects of adopting the above technical solutions are:

[0018] In this application, the rotating barrel is arranged to be able to rotate in the air separation barrel, so that the baffle in the air separation barrel can lift and lower the seeds. At this time, the fan blows out wind, which passes through the rotating barrel, and blows out the impurities mixed in the seeds from the air outlet end pipe fitting of the rotating barrel, thereby realizing the function of removing the impurities in the seeds. Description of the Drawings

[0019] Figure 1 is the front view of a seed air separation device of the present utility model.

[0020] Figure 2 is the sectional view of a seed air separation device of the present utility model.

[0021] Figure 3 is the side sectional view of the rotating barrel of the present utility model.

[0022] Figure 4 is the schematic diagram of some components of the present utility model.

[0023] Wherein: air separation barrel 10, discharge hopper 20, positioning pipe 30, fan 31, feed pipe 32, rotating barrel 40, baffle 41, air outlet end pipe fitting 50, toothed ring 51, gear 52, servo motor 53, discharge pipe 60, valve 61, filter screen 70, externally threaded sleeve 71, internal threads 72, baffle 73. Detailed Description of the Invention

[0024] The embodiments of the present utility model will be described in detail below with reference to the drawings.

[0025] As Figures 1-4 , in the first embodiment, a seed air separation device includes

[0026] The air separation barrel 10 has a discharge hopper 20 at its lower end;

[0027] The positioning pipe 30 penetrates through one side wall of the air separation barrel 10 and is fixedly connected to the air separation barrel 10;

[0028] The fan 31 is arranged at one end of the positioning pipe 30 extending outside the air separation barrel 10;

[0029] The feed pipe 32 obliquely penetrates through the side wall of the air separation barrel 10 and is communicated with the positioning pipe 30;

[0030] The rotating barrel 40 is located inside the air separation barrel 10. The air outlet end pipe fitting 50 of the rotating barrel 40 penetrates through the side wall of the air separation barrel 10 and is rotatably connected to the air separation barrel 10. The other port of the rotating barrel 40 is rotationally butted with one end of the positioning pipe 30 extending into the air separation barrel 10;

[0031] A plurality of baffles 41 are arranged in a circular arrangement and are fixedly connected to the inner wall of the rotating barrel 40 obliquely;

[0032] The discharge pipe 60 is arranged on the rotating barrel 40 and is communicated with the rotating barrel 40. The discharge pipe 60 is provided with a valve 61.

[0033] This embodiment is implemented as follows:

[0034] When this application is in use, the seeds are sent into the rotating barrel 40 through the feed pipe 32, and then the rotating barrel 40 rotates. Under the action of the baffle 41, the seeds are lifted to a high place. At this time, the seeds will fall under the action of gravity. At the same time, the fan 31 is started, and the air flow generated by the fan 31 passes through the rotating barrel 40 and blows on the seeds, blowing away the mixed light impurities, so that the impurities are blown out through the air outlet end pipe fitting of the rotating barrel 40.

[0035] The advantage of this application compared with the prior art is that it can continuously perform air separation on seeds.

[0036] Please refer to Figure 1 、 2 On the outer wall of the air outlet end pipe fitting 50 of the rotating barrel 40, a toothed ring 51 is fixedly sleeved. On the outer wall of the air separation barrel 10, a servo motor 53 is fixedly connected. The output end of the servo motor 53 is fixedly connected with a gear 52 meshing with the toothed ring 51.

[0037] The servo motor 53 can drive the gear 52 to rotate, the gear 52 drives the toothed ring 51 to rotate, and the toothed ring 51 drives the rotating barrel 40 to rotate.

[0038] Please refer to Figure 1 、 2, a baffle 73 is fixedly connected to the outer wall of the air separation barrel 10 corresponding to the position of the air outlet end pipe fitting 50 of the rotating barrel 40. The baffle 73 covers the periphery of the air outlet end pipe fitting 50 of the rotating barrel 40, and a detachable filter screen 70 is arranged inside the baffle 73.

[0039] The baffle 73 can receive the airflow flowing out of the air outlet end pipe fitting 50, so that the airflow is filtered through the filter screen 70 to block impurities.

[0040] Please refer to Figure 1 , 2 , the inner wall of the open end of the baffle 73 has an internal thread 72, the filter screen 70 is arranged on the inner wall of the external thread sleeve 71, and the external thread sleeve 71 is threadedly connected to the internal thread 72.

[0041] The filter screen 70 can be separated from the baffle 73 through the external thread sleeve 71, which is convenient for cleaning the impurities blocked in the baffle 73.

[0042] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the creative concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A seed winnowing device, characterized in that, including a pneumatic separation barrel with a discharge hopper at the lower end; a positioning pipe penetrating through one side wall of the pneumatic separation barrel and fixedly connected to the pneumatic separation barrel; a fan provided at one end of the positioning pipe extending outside the pneumatic separation barrel; a feed pipe obliquely penetrating through the side wall of the pneumatic separation barrel and communicating with the positioning pipe; a rotating barrel located inside the pneumatic separation barrel. The air outlet end pipe fitting of the rotating barrel penetrates through the side wall of the pneumatic separation barrel and is rotatably connected to the pneumatic separation barrel. The other port of the rotating barrel is rotatably butted with one end of the positioning pipe extending into the pneumatic separation barrel; a number of baffles arranged in a ring and obliquely fixedly connected to the inner wall of the rotating barrel; a discharge pipe provided on the rotating barrel and communicating with the rotating barrel, and the discharge pipe is provided with a valve.

2. The seed winnowing device according to claim 1, characterized in that, An outer wall of the air outlet end pipe fitting of the rotating barrel is fixedly sleeved with a toothed ring. An outer wall of the pneumatic separation barrel is fixedly connected with a servo motor, and an output end of the servo motor is fixedly connected with a gear meshing with the toothed ring.

3. The seed winnowing device according to claim 1, characterized in that, An outer wall of the pneumatic separation barrel is fixedly connected with a shield corresponding to the position of the air outlet end pipe fitting of the rotating barrel. The shield covers the periphery of the air outlet end pipe fitting of the rotating barrel, and a detachable filter screen is arranged inside the shield.

4. The seed winnowing device according to claim 3, characterized in that, An inner wall of an open end of the shield has an internal thread, the filter screen is arranged on an inner wall of an external thread sleeve, and the external thread sleeve is threadedly connected with the internal thread.

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