Corn seed screening device for agricultural breeding

[0020] The technical solution of this patent will be described in further detail below in conjunction with specific implementations:

[0021] See Figure 1-4 , A corn seed screening device for agricultural breeding, comprising a bottom plate 1, on which a left vertical plate 3 and a right vertical plate 26 are vertically fixedly installed, and the left vertical plate 3 and the right vertical plate 26 are vertically fixedly installed There is a casing 14, a horizontally rotating drive shaft 13 penetrates through the casing 14, a spiral blade 20 is fixedly installed on the surface of the drive shaft 13, the drive shaft 13 extends to the left to the left of the casing 14, and the drive shaft 13 is sleeved The driving pulley 12 is fixedly installed, the left end of the driving shaft 13 is drivingly connected with the second motor 11, the left vertical plate 3 is horizontally rotatably provided with a driven shaft 9 therethrough, and the driven shaft 9 is sleeved and fixedly installed with a driven belt Wheel 8; the driving pulley 12 and the driven pulley 8 are sleeved with a transmission belt 10; the surface of the driven shaft 9 is fixedly mounted with a fan blade 22, and the fan blade 22 is covered with a net cover 23; A feeding hopper 15 is vertically fixed on the upper left top of the cover 14. The upper surface of the cover 14 is evenly provided with a number of air inlets 17. The air inlet 17 is sealed with an air collecting cover 16, and the right of the cover 14 A hot air blower 21 is fixedly installed on the side wall, and an air supply pipe 18 is connected between the hot air blower 21 and the air collecting hood 16; the upper right part of the cover 14 is also provided with an air outlet 19; the lower right part of the cover 14 is vertical There is a cover 14 directly open; the lower left of the bottom of the cover 14 is inclined with a conveyor belt 25, the right end of the conveyor belt 25 is located directly under the lowering pipe 24, and a driving device is connected to the conveyor belt 25; the left vertical plate 3 Between the right vertical plate 26 and the right vertical plate 26, a screening basket 7 is inserted in an inclined and movable manner. The bottom surface of the screening basket 7 is evenly provided with meshes; the bottom plate 1 is fixedly installed with a first motor 4, and the output shaft of the first motor 4 A rotating wheel 5 is fixed and installed coaxially. The front of the rotating wheel 5 is eccentrically hinged with a connecting rod 6. The upper end of the connecting rod 6 is hinged on the lower left bottom surface of the screening basket 7; a sleeve 29 is hinged on the right side wall of the left vertical plate 3, the sleeve A sliding cavity 28 along the length of the sleeve 29 is opened in the sliding cavity 28, a limit spring 31 is arranged in the sliding cavity 28, and a sliding shaft 30 is slidably arranged in the sliding cavity 28. The lower end of the limit spring 31 is fixed at the bottom of the sliding cavity 28 The upper end of the limit spring 31 is fixed on the lower end of the sliding shaft 30, and the upper end of the sliding shaft 30 is hinged on the bottom surface of the screening basket 7; the lower part of the screening basket 7 is fixedly installed with the first collection tank 2, and the bottom plate 1 is fixedly installed There is a second collecting tank 27, and the right end of the screening basket 7 is located above the second collecting tank 27.

[0022] The working principle and use method of the present invention are:

[0023] When in use, the corn seeds to be sieved are added to the housing 14 through the hopper 15, and the second motor 11 is activated to drive the driving shaft 13 to rotate, and the driving shaft 13 drives the spiral blade 20 to rotate and direct the corn seeds in the housing 14 Right spiral conveying; during this period, the hot air blower 21 is started to generate hot air, which is transported into the air collecting hood 16 through the air supply pipe 18, and finally enters the inside of the housing 14 through the air inlet 17, so that the corn turned by the spiral blade 20 The seeds can be dried with hot air, and the drying is more complete. The hot air carries moisture and is discharged through the air outlet 19; the spiral blade 20 conveys the corn to the upper end of the feeding tube 24 and falls through the feeding tube 24 to the conveyor belt 25, which is driving The device drives the downward rotation and conveys the corn seeds to the lower left. The corn seeds can be spread on the conveyor belt 25; the rotation of the driving shaft 13 drives the driving pulley 12 to rotate, and the driving pulley 12 drives the driven pulley 8 through the transmission belt 10 When rotating, the driven pulley 8 drives the driven shaft 9 to rotate, and the driven shaft 9 drives the fan blade 22 to rotate. The direction of the fan blade 22 is set to the right, and the fan blade 22 blows the corn seeds conveyed on the conveyor belt 25 to the right. , To achieve the effect of wind drying; corn seeds fall in the screening basket 7, at the same time, the first motor 4 is started to drive the rotating wheel 5 to rotate, the rotating wheel 5 drives the connecting rod 6 to swing, and the connecting rod 6 drives the screening basket 7 to swing left and right. The screening basket 7 drives the sliding shaft 30 together with the sleeve 29 to swing left and right, the sliding shaft 30 slides in the sleeve 29, and the limit spring 31 deforms and stretches and compresses. At this time, the screening basket 7 is driven by the sliding shaft 30 to reciprocate up and down, making The screening basket 7 shakes from side to side while shaking up and down, which promotes the rapid screening of the corn seeds on the screening basket 7. The corn seeds with larger grains pass through the mesh on the screening basket 7 and fall into the first collection tank 2. The corn seeds with larger grains slide rightward along the inner bottom surface of the screening basket 7 into the second collection tank 27, and the corn seeds are screened and separated at this time.

[0024] To sum up, in the present invention, the corn seeds in the shell 14 are dried by hot air by the hot air blower 21 through the air supply pipe 18 and the air collecting hood 16, and the driving shaft 13 drives the spiral blade 20 to rotate the corn seeds, so that the hot air and the corn The seeds can be fully contacted, which greatly improves the drying effect. At the same time, the corn conveyed on the conveyor belt 25 is simultaneously dried by the fan blade 22. The corn can be spread on the conveyor belt 25, and the drying effect is better; Screening basket 7 The vibration of the sieve promotes the vibration of the screening basket 7 on the corn seeds and improves the screening rate. The conveyor belt 25 smoothly transports the corn seeds to the screening basket 7, avoiding the accumulation of corn seeds, and the screening efficiency is higher.

[0025] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description, and therefore it is intended to fall within the claims. All changes within the meaning and scope of the equivalent elements of are included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0026] In addition, it should be understood that although this specification is described in accordance with the implementation manners, not each implementation manner only contains an independent technical solution. This narration in the specification is only for clarity, and those skilled in the art should regard the specification as a whole The technical solutions in the embodiments can also be appropriately combined to form other implementations that can be understood by those skilled in the art.