Screening and cleaning device based on reduction of impurities in rapeseeds

Abstract

The screening and cleaning device comprises a frame body, a first screening plate, a second screening plate and an inclined plate frame, a feeding port is formed in the upper portion of the frame body, the inclined plate frame is installed on the lower portion of the frame body, and the first screening plate and the second screening plate are installed on the upper portion of the inclined plate frame from top to bottom; the aperture of the first sieve plate is larger than that of the second sieve plate; through the configuration of the large-aperture sieve plate and the small-aperture sieve plate, step-by-step sequential screening is realized; low-mass dust is adsorbed and removed under the action of the winnowing machine, and particles heavier than the rapeseeds are screened step by step through rolling and vibration of the inclined plane and the screen; the inclined plate frame, the winnowing machine and the motor drive the sieve plate to stably move front and back and vibrate up and down to a certain degree, so that rapeseeds and impurities are more conveniently discharged from the discharge port in an inclined state, and the screening efficiency and quality of the rapeseeds are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rapeseed screening, in particular to a screening and cleaning device for reducing impurities in rapeseed. Background Art

[0002] At present, the technical level of rapeseed screening devices generally has drawbacks, which restricts the deep processing development of rapeseed. The existing rapeseed screening equipment mainly relies on static filtration to separate impurities; the patent number CN117339882A discloses a rapeseed screening device including an impurity channel, a fan assembly, an impurity filtering box, a first filtering electric sieve, an impurity box and a second filtering electric sieve, but its guiding separation after rapeseed screening is not sufficient enough.

[0003] Specifically, the existing rapeseed screening equipment cannot move back and forth and vibrate up and down, resulting in the inability to effectively separate various impurities sometimes, and the screening efficiency is not high. Therefore, there is an urgent need for a new type of screening and cleaning device for reducing impurities in rapeseed to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a screening and cleaning device for reducing impurities in rapeseed to solve the problems in the above background.

[0005] The purpose of the utility model can be realized by the following technical solutions:

[0006] A screening and cleaning device for reducing impurities in rapeseed, comprising: a frame body, a first sieve plate, a second sieve plate and an inclined plate frame. An inlet is opened at the upper part of the frame body, and an inclined plate frame is installed at the lower part of the frame body. The first sieve plate and the second sieve plate are installed on the upper part of the inclined plate frame from top to bottom.

[0007] The aperture of the first sieve plate is larger than that of the second sieve plate.

[0008] A plurality of slots are opened on the inner side of the upper part of the inclined plate frame. A plurality of support plugs are fixed between the first sieve plate and the second sieve plate. The support plugs are L-shaped structures. The lower ends of the support plugs are slidably inserted into the slots, and springs are provided at the corners of the support plugs.

[0009] An air separator is installed on one side of the frame body. The air outlet of the air separator is located between the first sieve plate and the second sieve plate. A dust removal outlet is installed on the other side of the frame body.

[0010] First, the larger straws and stones in the rapeseed are screened by the first sieve plate, and then the sand and dust in the preliminarily screened rapeseed are screened by the second sieve plate. The air separator can adsorb and collect the impurities lighter than the rapeseed during the screening process, and the subsequent impurity separation enters the dust removal outlet.

[0011] One side of the inclined plate frame is fixed with a motor. The output shaft of the motor is key-connected to a conveyor belt. The conveyor belt is connected to a pulley. The output shaft of the pulley is key-connected to a first rotating shaft. A fixing block is installed on the leg of the inclined plate frame. The first rotating shaft is rotatably connected to the fixing block. An eccentric block is fixed to the end of the first rotating shaft. A second rotating shaft is fixed to one side of the eccentric block.

[0012] One side of the second rotating shaft is hinged with a connecting rod. The end of the connecting rod is hinged to the bottom side of the second sieve plate.

[0013] The radius of the pulley is larger than the output shaft of the motor. By increasing the radius of the pulley, the output frequency of the motor is reduced. Thus, the power converted by the eccentric block is more stable, enabling the hinged connecting rod to drive the second sieve plate to move back and forth more smoothly. The first sieve plate can move synchronously, allowing the two-stage screening of rapeseed to be carried out simultaneously, improving the screening efficiency.

[0014] Discharge ports are provided at the positions where the lower sides of the first sieve plate and the second sieve plate are located on the side wall of the frame body. Discharge grooves are installed at the positions of the frame body below the discharge ports. The openings of the two discharge grooves face in opposite directions.

[0015] The bottom of the support plug slides stably in the chute. The spring enables the sieve plate to have a slight up-and-down vibration when moving back and forth, allowing the screened rapeseed, stones, straw and other impurities to move and be discharged from the discharge port under the inclined support respectively.

[0016] The beneficial effects of the present utility model:

[0017] 1. By configuring double sieve plates with large and small apertures, the present utility model realizes sequential screening step by step. Low-quality dust is adsorbed and removed under the action of the pneumatic separator. Particles heavier than rapeseed are gradually screened through rolling and vibration on the inclined plane and the sieve mesh. Driven by the inclined plate frame, the pneumatic separator and the motor, the sieve plate moves smoothly back and forth and vibrates slightly up and down, enabling rapeseed and impurities to be more conveniently discharged from the discharge port in an inclined state, improving the screening efficiency and the quality of rapeseed.

[0018] 2. The present utility model drives the synchronous screening of rapeseed by two sieve plates through support plugs in the rapeseed synchronous screening structure supported by the inclined plate frame and springs. Through the two-way discharge groove, different impurities such as screened rapeseed, stones, and straw can be classified and recycled for subsequent processing and utilization. Description of the Drawings

[0019] The following further illustrates the present utility model with reference to the drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2It is a schematic structural view of the utility model;

[0022] Figure 3 It is a schematic structural view of the first sieve plate and the second sieve plate of the utility model;

[0023] Figure 4 It is a schematic structural view of the support plug of the utility model;

[0024] Figure 5 It is a schematic position structure view of the pneumatic separator of the utility model;

[0025] In the figure: 1. Frame body; 2. Inclined plate frame; 21. Slot; 3. Pneumatic separator; 4. First sieve plate; 5. Second sieve plate; 6. Motor; 7. Belt pulley; 8. Conveyor belt; 9. First rotating shaft; 10. Eccentric block; 11. Second rotating shaft; 12. Connecting rod; 13. Support plug; 131. Spring; 14. Dust removal outlet; 15. Fixed block; 16. Discharge port; 17. Discharge chute. Specific implementation mode

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0027] Please refer to Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, a screening and cleaning device for reducing impurities in rapeseed includes: a frame body 1, a first sieve plate 4, a second sieve plate 5 and an inclined plate frame 2. An inlet is provided at the upper part of the frame body 1, and an inclined plate frame 2 is installed at the lower part of the frame body 1. The first sieve plate 4 and the second sieve plate 5 are installed on the upper part of the inclined plate frame 2 from top to bottom.

[0028] The aperture of the first sieve plate 4 is larger than that of the second sieve plate 5.

[0029] A plurality of slots 21 are provided on the inner side of the upper part of the inclined plate frame 2. A plurality of support plugs 13 are fixed between the first sieve plate 4 and the second sieve plate 5. The support plug 13 is of an L-shaped structure. The lower end of the support plug 13 is slidably inserted into the slot 21, and a spring 131 is provided at the fold angle of the support plug 13.

[0030] A pneumatic separator 3 is installed on one side of the frame body 1. The air outlet of the pneumatic separator 3 is located between the first sieve plate 4 and the second sieve plate 5. A dust removal outlet 14 is installed on the other side of the frame body 1.

[0031] First, the larger straws and stones in the rapeseeds are screened by the first sieve plate 4, and then the sand and dust in the rapeseeds after the preliminary screening are screened by the second sieve plate 5. The air separator 3 can adsorb and collect the impurities lighter than the rapeseeds during the screening process, and the subsequent impurities are separated and enter the dust removal outlet 14.

[0032] Please refer to Figure 2 As shown, a motor 6 is fixed on one side of the inclined plate frame 2. The output shaft of the motor 6 is key-connected to a conveyor belt 8. The conveyor belt 8 is connected to a pulley 7. The output shaft of the pulley 7 is key-connected to a first rotating shaft 9. A fixing block 15 is installed on the leg of the inclined plate frame 2. The first rotating shaft 9 is rotatably connected to the fixing block 15. An eccentric block 10 is fixed at the end of the first rotating shaft 9. A second rotating shaft 11 is fixed on one side of the eccentric block 10.

[0033] One side of the second rotating shaft 11 is hinged to a connecting rod 12, and the end of the connecting rod 12 is hinged to the bottom side of the second sieve plate 5.

[0034] The radius of the pulley 7 is larger than the output shaft of the motor 6. By increasing the radius of the pulley 7, the output frequency of the motor 6 is reduced, so that the power converted by the eccentric block 10 is more stable, and the hinged connecting rod 12 drives the second sieve plate 5 to move back and forth more smoothly. The first sieve plate 4 can move synchronously, enabling the two-stage screening of the rapeseeds to be carried out synchronously, improving the screening efficiency.

[0035] Discharge ports 16 are provided at the positions of the lower sides of the first sieve plate 4 and the second sieve plate 5 on the side wall of the frame body 1. Discharge troughs 17 are installed at the positions of the frame body 1 below the discharge ports 16, and the openings of the two discharge troughs 17 face in opposite directions.

[0036] The bottom of the support plug 13 slides stably in the chute. The spring 131 enables the sieve plate to have a slight up-and-down vibration when moving back and forth, so that the screened rapeseeds, stones, straws and other impurities can move and be discharged from the discharge port 16 under the inclined support.

[0037] The working principle of the present utility model: When in use, the uncleaned rapeseeds are added into the interior of the frame body 2 from the feed port and are screened successively by the first sieve plate 4 and the second sieve plate 5.

[0038] The air separator 3 is started to adsorb and remove the low-quality dust. The particles heavier than the rapeseeds are screened step by step through the rolling and vibration on the inclined plane and the sieve mesh.

[0039] The inclined plate frame 2, the air separator 3 and the motor 6 drive the sieve plate to move back and forth smoothly and vibrate up and down to a certain extent, enabling the rapeseeds and impurities to be more conveniently discharged from the discharge port 16 in an inclined state, improving the screening efficiency and the quality of the rapeseeds.

[0040] The supporting insert block 13 drives the two sieve plates to move up and down and back and forth on the inclined plate frame 2. Through the two-way discharge chute 17, the screened rapeseeds, stones, straws and other different impurities can be recycled and processed separately, which is convenient for subsequent processing and utilization.

[0041] The above has described in detail an embodiment of the present invention, but the content described is only the preferred embodiment of the present invention and cannot be considered as used to limit the scope of implementation of the present invention. All equal changes and improvements made according to the scope of application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A screening and cleaning device based on reducing impurities in rapeseed, characterized in that, Including: A frame body (1), a first sieve plate (4), a second sieve plate (5) and an inclined plate frame (2). A feed inlet is provided at the upper part of the frame body (1). An inclined plate frame (2) is installed at the lower part of the frame body (1). The first sieve plate (4) and the second sieve plate (5) are installed on the upper part of the inclined plate frame (2) from top to bottom. An air separator (3) is installed on one side of the frame body (1); A plurality of slots (21) are provided on the inner side of the upper part of the inclined plate frame (2). A plurality of support plug blocks (13) are fixed between the first sieve plate (4) and the second sieve plate (5).

2. The screening and cleaning device for reducing impurities in rapeseed according to claim 1, wherein The aperture of the first sieve plate (4) is larger than that of the second sieve plate (5).

3. The screening and cleaning device for reducing impurities in rapeseed according to claim 1, wherein The support plug block (13) is of an L-shaped structure. The lower end of the support plug block (13) is slidably inserted into the slot (21). A spring (131) is provided at the folding angle of the support plug block (13).

4. The screening and cleaning device for reducing impurities in rapeseed according to claim 1, wherein The air outlet of the air separator (3) is located between the first sieve plate (4) and the second sieve plate (5). A dust removal outlet (14) is installed on the other side of the frame body (1).

5. The screening and cleaning device for reducing impurities in rapeseed according to claim 1, wherein A motor (6) is fixed on one side of the inclined plate frame (2). The output shaft of the motor (6) is key-connected with a conveyor belt (8). The conveyor belt (8) is connected with a belt pulley (7). The output shaft of the belt pulley (7) is key-connected with a first rotating shaft (9). A fixing block (15) is installed on the leg of the inclined plate frame (2). The first rotating shaft (9) is rotatably connected with the fixing block (15). An eccentric block (10) is fixed at the end of the first rotating shaft (9). A second rotating shaft (11) is fixed on one side of the eccentric block (10).

6. The screening and cleaning device for reducing impurities in rapeseed according to claim 5, wherein, A connecting rod (12) is hinged on one side of the second rotating shaft (11). The end of the connecting rod (12) is hinged with the bottom side of the second sieve plate (5).

7. The screening and cleaning device for reducing impurities in rapeseed according to claim 5, wherein The radius of the belt pulley (7) is larger than the output shaft of the motor (6).

8. The screening and cleaning device for reducing impurities in rapeseed according to claim 1, characterized in that, Discharge ports (16) are provided at the positions of the lower sides of the first sieve plate (4) and the second sieve plate (5) on the side wall of the frame body (1). Discharge troughs (17) are installed at the positions of the lower sides of the discharge ports (16) in the frame body (1). The openings of the two discharge troughs (17) face in opposite directions.

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