Corn breeding screening device

Abstract

The utility model discloses a corn breeding screening device, which belongs to the technical field of agricultural equipment, and comprises a screening box, four corners of the lower end of the screening box are fixedly connected with supporting columns, the outer side of one end of the screening box is provided with a feeding hopper, and the feeding hopper is placed on the ground. The lower end of the feeding hopper is connected with one side of the upper end of the screening box through the material conveying device, corn kernels are poured into the floor type feeding hopper, the corn kernels are conveyed into the screening box through the material conveying device to be screened, and during use, feeding is convenient, and labor is saved; the feeding amount of corn kernels is controlled by adjusting the size of a gap between the lower end of the door body and the feeding conveying belt, and controllability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural equipment, and more specifically to a corn breeding screening device. Background Art

[0002] my country is a major corn producer. Since some corn kernels are shriveled and necrotic when collected, corn seeds need to be screened when planting corn to ensure the survival rate of the corn. An existing patent is for a corn breeding screening device. Patent application number CN202121307144.3 provides a rolling mechanism and a wind selection device to effectively clean and screen a large number of corn seeds.

[0003] However, the feed box of this application is installed at the upper end of the overall frame, which is very time-consuming, labor-intensive and inconvenient to pour corn kernels into, and the feeding amount and speed of corn kernels cannot be well controlled during use. Therefore, we proposed a corn breeding screening device to solve the above-mentioned problems. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a corn breeding screening device, which is convenient and labor-saving to load and can well control the loading amount and speed of corn kernels.

[0006] 2. Technical solution

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] A corn breeding screening device comprises a screening box, wherein the four corners of the lower end of the screening box are fixedly connected to support columns, an upper hopper is arranged on the outer side of one end of the screening box, the upper hopper is placed on the ground, and the lower end of the upper hopper is connected to one side of the upper end of the screening box through a feeder.

[0009] Furthermore, a screening chamber is provided inside the screening box, a wind chamber is provided inside one end of the screening chamber, a fan is fixedly installed inside the wind chamber, a No. 1 screen outlet, a No. 2 screen outlet and a No. 3 screen outlet are provided in sequence from near to far between the lower end of the screening chamber and the wind chamber, and a dust outlet is provided at the other end of the screening chamber.

[0010] Furthermore, a loading chamber is provided inside the loading hopper, and a No. 1 roller is rotatably connected to both sides of the lower end of the loading chamber, and the two No. 1 rollers are connected through a loading conveyor belt transmission. A No. 1 motor is fixedly installed on the outer side of the loading hopper, and the output end of the No. 1 motor is fixedly connected to the No. 1 roller through a rotating shaft.

[0011] Furthermore, the feeder includes a feed frame, the lower end of the feed frame is connected to one side of the inner lower end of the feeding cavity, the upper end of the feed frame is connected to one end of the upper end of the screening cavity, a plurality of No. 2 rollers are rotatably connected to the feed frame, the No. 2 rollers are connected by a feed conveyor belt, a No. 2 motor is fixedly installed on the outer side of the upper end of the feed frame, and the output end of the No. 2 motor is fixedly connected to the No. 2 roller through a rotating shaft.

[0012] Furthermore, the discharge end of the loading conveyor belt is located on the upper side of the lower end of the feeding conveyor belt.

[0013] Furthermore, a gate is provided on the upper hopper, and the gate includes a door body, and the door body is located above the discharge end of the loading conveyor belt. The door body is slidably connected to the upper hopper, and a U-shaped bracket is fixedly installed on the outer wall of the upper hopper, and a threaded rod is threadedly connected to the bracket, and the lower end of the threaded rod is rotatably connected to the door body, and a turntable is fixedly installed on the upper end of the threaded rod.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] (1) In this solution, corn kernels are poured into a floor-type loading hopper and conveyed to a screening box by a feeder for screening. The feeding is convenient and labor-saving during use.

[0017] (2) In this solution, a gate is provided on the upper hopper, and the amount of corn kernels fed is controlled by adjusting the gap between the lower end of the gate and the feeding conveyor belt, which has good controllability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the external structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the front view structure of the gate of the present utility model.

[0021] Description of the numbers in the figure:

[0022] 1. Screening box; 11. Screening cavity; 12. Wind cavity; 13. Fan; 14. No. 1 screen outlet; 15. No. 2 screen outlet; 16. No. 3 screen outlet; 17. Dust outlet; 18. Support column; 2. Loading hopper; 21. Loading cavity; 22. No. 1 roller; 23. Loading conveyor belt; 24. Gate; 241. Door body; 242. Bracket; 243. Threaded rod; 244. Turntable; 25. No. 1 motor; 3. Feeder; 31. Feeding rack; 32. No. 2 roller; 33. Feeding conveyor belt; 34. No. 2 motor. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0024] Embodiment 1:

[0025] See also Figure 1-3 A corn breeding screening device includes a screening box 1, the four corners of the lower end of the screening box 1 are fixedly connected with support columns 18, an upper hopper 2 is provided on the outer side of one end of the screening box 1, the upper hopper 2 is placed on the ground, and the lower end of the upper hopper 2 is connected to one side of the upper end of the screening box 1 through a feeder 3.

[0026] See also Figure 1 and Figure 2 A screening chamber 11 is provided inside the screening box 1, a wind chamber 12 is provided inside one end of the screening chamber 11, a fan 13 is fixedly installed inside the wind chamber 12, a No. 1 screen outlet 14, a No. 2 screen outlet 15 and a No. 3 screen outlet 16 are provided in sequence from near to far between the lower end of the screening chamber 11 and the wind chamber 12, and a dust outlet 17 is provided at the other end of the screening chamber 11. When the fan 13 works, corn kernels of different fullness are screened and collected through the No. 1 screen outlet 14, the No. 2 screen outlet 15 and the No. 3 screen outlet 16, and dust is discharged through the dust outlet 17.

[0027] See also Figure 1 and Figure 2 A loading chamber 21 is provided inside the loading hopper 2, and a No. 1 roller 22 is rotatably connected to both sides of the lower end of the loading chamber 21. The two No. 1 rollers 22 are connected through a loading conveyor belt 23. A No. 1 motor 25 is fixedly installed on the outer side of the loading hopper 2, and the output end of the No. 1 motor 25 is fixedly connected to the No. 1 roller 22 through a rotating shaft. When the No. 1 motor 25 works, it can drive the No. 1 roller 22 to rotate, thereby transmitting the loading conveyor belt 23.

[0028] See also Figure 1 and Figure 2The feeder 3 includes a feed frame 31, the lower end of the feed frame 31 is connected to one side of the lower end of the upper material chamber 21, the upper end of the feed frame 31 is connected to one end of the upper end of the screening chamber 11, a plurality of No. 2 rollers 32 are rotatably connected to the feed frame 31, and the No. 2 rollers 32 are connected through a feed conveyor belt 33 for transmission, a No. 2 motor 34 is fixedly installed on the outer side of the upper end of the feed frame 31, and the output end of the No. 2 motor 34 is fixedly connected to the No. 2 roller 32 through a rotating shaft, and the No. 2 motor 34 drives the No. 2 roller 32 to rotate, and the feed conveyor belt 33 is driven.

[0029] See also Figure 1 The discharge end of the feeding conveyor belt 23 is located on the upper side of the lower end of the feeding conveyor belt 33 , and the corn kernels on the feeding conveyor belt 23 will directly fall onto the feeding conveyor belt 33 .

[0030] See also Figure 1 , Figure 2 and Figure 3 A gate 24 is provided on the upper hopper 2, and the gate 24 includes a door body 241. The door body 241 is located above the discharge end of the feeding conveyor belt 23, and the door body 241 is slidably connected to the upper hopper 2. A U-shaped bracket 242 is fixedly installed on the outer wall of the upper hopper 2, and a threaded rod 243 is threadedly connected to the bracket 242. The lower end of the threaded rod 243 is rotatably connected to the door body 241, and a turntable 244 is fixedly installed on the upper end of the threaded rod 243. The feeding speed of the corn kernels is controlled by controlling the gap size between the lower end of the door body 241 and the feeding conveyor belt 23.

[0031] When in use: pour corn kernels into the feeding chamber 21 of the upper hopper 2, first turn on the fan 13, then turn on the No. 2 motor 34 to drive the feeding conveyor belt 33, rotate the threaded rod 243 through the turntable 244, and use the threaded rod 243 to be threadedly connected with the bracket 242. The threaded rod 243 can move up and down to lift the door body 241, and finally turn on the No. 1 motor 25 to drive the feeding conveyor belt 23.

[0032] The corn kernels in the feeding chamber 21 are transported by the feeding conveyor belt 23 to the feed conveyor belt 33, and are transported to the inside of the screening box 1 under the action of the feed conveyor belt 33. Since the weight of full corn kernels is heavier than that of shriveled corn kernels, the corn kernels can be screened by the action of the fan 13, and corn kernels of different fullness are screened and collected through the No. 1 screen outlet 14, the No. 2 screen outlet 15 and the No. 3 screen outlet 16. The dust in the corn kernels will be discharged through the dust outlet 17. The air volume of the fan 13 is controllable to avoid the effect of corn kernel screening caused by too small or too large air volume. When in use, the feeding speed of the corn kernels is controlled by controlling the gap size between the lower end of the door body 241 and the feeding conveyor belt 23, and the controllability is good. The feeding hopper 2 is floor-mounted, and feeding is convenient and labor-saving.

[0033] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A corn breeding screening device, comprising a screening box (1), characterized in that: The four corners of the lower end of the screening box (1) are fixedly connected to support columns (18); an upper hopper (2) is provided on the outer side of one end of the screening box (1); the upper hopper (2) is placed on the ground; the lower end of the upper hopper (2) is connected to one side of the upper end of the screening box (1) via a feeder (3); a feeding cavity (21) is provided inside the upper hopper (2); two sides of the lower end of the upper cavity (21) are rotatably connected to a No. 1 roller (22); the two No. 1 rollers (22) are connected to each other by a feeding conveyor belt (23); a No. 1 motor (25) is fixedly installed on the outer side of the upper hopper (2); the output end of the No. 1 motor (25) is fixedly connected to the No. 1 roller (22) via a rotating shaft; The feeder (3) comprises a feed frame (31), the lower end of the feed frame (31) is connected to one side of the lower end of the feed chamber (21), the upper end of the feed frame (31) is connected to one end of the upper end of the screening chamber (11), a plurality of No. 2 rollers (32) are rotatably connected to the feed frame (31), the No. 2 rollers (32) are connected to each other by a feed conveyor belt (33), a No. 2 motor (34) is fixedly mounted on the outer side of the upper end of the feed frame (31), and the output end of the No. 2 motor (34) is fixedly connected to the No. 2 roller (32) via a rotating shaft; The upper hopper (2) is provided with a gate (24), the gate (24) comprising a gate body (241), the gate body (241) being located above the discharge end of the upper material conveyor belt (23), the gate body (241) being slidably connected to the upper hopper (2), a U-shaped bracket (242) being fixedly mounted on the outer wall of the upper hopper (2), a threaded rod (243) being threadedly connected to the bracket (242), the lower end of the threaded rod (243) being rotatably connected to the gate body (241), and a turntable (244) being fixedly mounted on the upper end of the threaded rod (243).

2. A corn breeding screening device according to claim 1, characterized in that: The screening box (1) is provided with a screening chamber (11) inside, a wind chamber (12) is provided inside one end of the screening chamber (11), a fan (13) is fixedly installed inside the wind chamber (12), a first screening outlet (14), a second screening outlet (15) and a third screening outlet (16) are provided in order from near to far between the lower end of the screening chamber (11) and the wind chamber (12), and a dust outlet (17) is provided at the other end of the screening chamber (11).

3. A corn breeding screening device according to claim 1, characterized in that: The discharge end of the loading conveyor belt (23) is located on the upper side of the lower end of the feeding conveyor belt (33).

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