Corn seed production thresher

Abstract

The utility model relates to the technical field of preparation equipment, in particular to a corn seed production thresher which comprises a frame body, a threshing mechanism arranged on the frame body and a screening mechanism arranged at the bottom of the frame body, the threshing mechanism comprises a shell, a first driving piece, a connecting shaft and a threshing roller, the shell is obliquely arranged on the frame body, a discharging hole is formed in the bottom of the shell, and the first driving piece is arranged on the shell. The connecting shaft is arranged in the shell in a penetrating mode and hinged to the shell, connecting pieces are arranged at the two ends of the connecting shaft, the first driving piece is arranged at one end of the shell and rotates with the connecting shaft in a transmission mode, the threshing roller is composed of connecting rods and threshing hammers, the connecting rods are arranged on the connecting pieces, and the multiple threshing hammers are movably arranged on the connecting rods in a sleeving mode. The portion, between every two adjacent threshing hammers, of the connecting rod is sleeved with a first spring, the first driving piece is started, the first driving piece drives the connecting shaft to rotate, then the threshing rollers are driven to rotate, corn is hammered and threshed, and when the corn is hammered, due to the fact that the threshing hammers are movably connected with the connecting rods and the multiple threshing rollers are arranged, the corn threshing efficiency is improved. According to the corn thresher, the corn threshing efficiency is guaranteed while damage to corn kernels is reduced, due to the fact that the shell is obliquely arranged on the frame body, under the action of gravity, the corn moves downwards, and when the corn moves to the threshing hammer provided with the columnar hammer head, the residual corn kernels can be threshed conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of corn threshing, in particular to a corn seed production thresher. Background Art

[0002] Corn needs to be threshed during seed production. Existing threshing methods generally include striking threshing, squeezing threshing and kneading threshing. However, squeezing threshing and kneading threshing are inefficient and cannot meet the needs of threshing a large amount of corn. Therefore, the commonly used threshing method is striking threshing, which completes threshing by striking the corn with a rotating hammer. However, this device is easy to damage the corn kernels and affect the corn yield. In addition, most devices are not equipped with a grading and screening device, which is not convenient for subsequent processing and use, thereby affecting work efficiency. Utility Model Content

[0003] The utility model aims to provide a corn seed thresher, which is used to solve the problems mentioned in the prior art in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a corn seed thresher, comprising a frame, a threshing mechanism arranged on the frame, and a screening mechanism arranged at the bottom of the frame, the threshing mechanism comprising a shell, a first driving member, a connecting shaft and a threshing roller, the shell is tilted on the frame, a feeding hole is provided at the bottom of the shell, the connecting shaft is passed through the shell and hinged to the shell, connecting members are provided at both ends of the connecting shaft, the first driving member is provided at one end of the shell and rotates with the connecting shaft, the threshing roller is composed of a connecting rod and a threshing hammer, the connecting rod is provided on the connecting member, a plurality of threshing hammers are provided and are movably sleeved on the connecting rod, and a first spring is sleeved on the connecting rod between two adjacent threshing hammers.

[0005] Furthermore, the screening mechanism includes a multi-stage screening plate and a second driving member, the multi-stage screening plate is composed of a vertical plate and a screening plate, a slide groove is opened on one side leg of the frame body, sliders are connected on both sides of the vertical plate, the slide groove and the slider are slidably matched, a second spring is provided at both upper and lower ends of the slider, one end of the second spring is connected to the slide groove, the screening plate is inclined on the vertical plate and is located below the discharge hole, and the second driving member is arranged on the vertical plate to drive the vertical plate to vibrate.

[0006] Furthermore, the sieve plates are provided in plurality and are arranged at equal intervals along the height direction of the vertical plates, and the plurality of sieve plates are each provided with sieve holes, and the apertures of the sieve holes decrease successively from top to bottom.

[0007] Furthermore, a debris removal opening is provided at the other end of the shell, and the debris removal opening is located at the lower end of the shell.

[0008] Furthermore, the shell body is provided with a shell cover, and the shell cover is provided with a feed hopper.

[0009] Furthermore, the connecting rods are provided in plurality and are arranged at equal intervals along the circumferential direction of the connecting shaft.

[0010] Furthermore, the first driving member is specifically a driving motor, and the second driving member is specifically a vibration motor.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model has the following beneficial effects:

[0013] The first driving member is started, and the first driving member drives the connecting shaft to rotate, and then drives the threshing roller to rotate, so as to hammer the corn so as to thresh it. When hammering the corn, since the threshing hammer is movably connected to the connecting rod and is provided with a plurality of threshing rollers, the threshing efficiency of the corn is ensured while reducing the damage to the corn kernels. Since the shell is tilted on the frame, the corn moves downward under the action of gravity, and when it moves to the threshing hammer provided with a columnar hammer head, the remaining corn kernels can be threshed.

[0014] The second driving member is started. When the corn kernels fall onto the multi-stage screening plate below, the second driving member drives the multi-stage screening plate to vibrate and screen the corn kernels. Since the apertures of the screening holes decrease from top to bottom, corn kernels of different sizes can be screened for subsequent use and processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the overall structure diagram of the utility model;

[0016] Figure 2 This is a two-axonometric drawing of the utility model;

[0017] Figure 3 This is a cross-sectional view of the utility model;

[0018] Figure 4 This is the internal structure diagram of the utility model;

[0019] Figure 5 It is a top view of the utility model;

[0020] Figure 6 This is a structural diagram of the threshing roller of the utility model.

[0021] In the figure: 1. frame; 2. screening mechanism; 3. threshing mechanism; 4. shell; 5. first driving member; 6. connecting shaft; 7. threshing roller; 8. feeding hole; 9. connecting member; 10. connecting rod; 11. threshing hammer; 12. first spring; 13. multi-stage screening plate; 14. vertical plate; 15. screening plate; 16. slide groove; 17. slider; 18. second spring; 19. screening hole; 20. impurity removal port; 21. shell cover; 22. feeding hopper; 23. second driving member. DETAILED DESCRIPTION

[0022] See also Figures 1 to 6 A corn seed thresher comprises a frame 1, a threshing mechanism 2 arranged on the frame 1, and a screening mechanism 3 arranged at the bottom of the frame 1. The threshing mechanism 2 is used to thresh corn, and the screening mechanism 3 is used to grade and screen corn kernels for subsequent use and processing. The threshing mechanism 2 comprises a shell 4, a first driving member 5, a connecting shaft 6 and a threshing roller 7. The shell 4 is tilted on the frame 1, a feeding hole 8 is provided at the bottom of the shell 4, and a dust removal port 20 is provided at the other end of the shell 4. The dust removal port 20 is located at the lower end of the shell 4. A shell cover 21 is provided, and a feed hopper 22 is provided on the shell cover 21. A connecting shaft 6 is inserted into the shell 4 and is hinged with the shell 4. Connecting pieces 9 are provided at both ends of the connecting shaft 6. A first driving piece 5 is provided at one end of the shell 4 and is driven to rotate with the connecting shaft 6. The threshing roller 7 is composed of a connecting rod 10 and a threshing hammer 11. The connecting rod 10 is provided on the connecting piece 9. The threshing hammer 11 is provided with a plurality of movable sleeves on the connecting rod 10, which can rotate on the connecting rod 10 and can also move along the length direction of the connecting rod 10. A first elastic sleeve is provided on the connecting rod 10 between two adjacent threshing hammers 11. The threshing hammer 11 has two forms. The hammer head of the threshing hammer 11 located in the middle of the connecting rod 10 to the end close to the feed hopper 22 is mushroom-shaped, and the hammer head of the threshing hammer 11 located in the middle of the connecting rod 10 to the end close to the impurity removal port 20 is columnar. The movable threshing hammer 11 is provided to reduce the damage to the corn kernels, and the threshing effect is increased by providing the hammer heads of the threshing hammer 11 in two forms. The screening mechanism 3 includes a multi-stage screening plate 13 and a second driving member 23. The multi-stage screening plate 13 is composed of a vertical plate 14 and a screening plate 15. A frame leg on one side of the frame body 1 is provided with a Slide blocks 17 are connected to both sides of the slide groove 16 and the vertical plate 14. The slide groove 16 and the slide block 17 are slidably matched. Second springs 18 are provided at both ends of the slide block 17. One end of the second spring 18 is connected to the slide groove 16. The screening plate 15 is tilted on the vertical plate 14 and is located below the discharge hole 8. The second driving member 23 is provided on the vertical plate 14 to drive the vertical plate 14 to vibrate. There are multiple screening plates 15 and they are evenly spaced along the height direction of the vertical plate 14. Screening holes 19 are opened on the multiple screening plates 15, and the apertures of the screening holes 19 decrease from top to bottom.

[0023] A plurality of connecting rods 10 are provided and are arranged at equal intervals along the circumferential direction of the connecting shaft 6 to increase the contact area with the corn kernels and further enhance the threshing effect.

[0024] The first driving member 5 is specifically a driving motor, and the second driving member 23 is specifically a vibration motor.

[0025] The working principle of the utility model is as follows: when threshing corn, firstly, the corn is thrown into the shell 4 from the feed hopper 22, and the first driving member 5 and the second driving member 23 are started synchronously, the first driving member 5 drives the connecting shaft 6 to rotate, and then drives the threshing roller 7 to rotate, and the corn is hammered to thresh it. When the corn is hammered, since the threshing hammer 11 is movably connected with the connecting rod 10 and a plurality of threshing rollers 7 are provided, the threshing efficiency of the corn is guaranteed while the damage to the corn kernels is reduced. Since the shell 4 is tilted on the frame 1, the corn moves downward under the action of gravity, and when it moves to the threshing hammer 11 with a columnar hammer head, the remaining corn kernels can be threshed; the corn kernels fall onto the multi-stage screening plate 13 below, and the second driving member 23 drives the multi-stage screening plate 13 to vibrate, so as to screen the corn kernels for subsequent use and processing.

[0026] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A corn seed thresher, comprising a frame (1), a threshing mechanism (2) arranged on the frame (1), and a screening mechanism (3) arranged at the bottom of the frame (1), characterized in that: The threshing mechanism (2) comprises a shell (4), a first driving member (5), a connecting shaft (6) and a threshing roller (7); the shell (4) is tiltedly arranged on the frame (1); a feeding hole (8) is provided at the bottom of the shell (4); the connecting shaft (6) is inserted into the shell (4) and is hinged to the shell (4); connecting members (9) are provided at both ends of the connecting shaft (6); the first driving member (5) is arranged at one end of the shell (4) and is driven to rotate with the connecting shaft (6); the threshing roller (7) consists of a connecting rod (10) and a threshing hammer (11); the connecting rod (10) is arranged on the connecting member (9); a plurality of threshing hammers (11) are provided and are all movably sleeved on the connecting rod (10); a first spring (12) is sleeved on the connecting rod (10) between two adjacent threshing hammers (11).

2. A corn seed thresher as claimed in claim 1, characterized in that: The screening mechanism (3) comprises a multi-stage screening plate (13) and a second driving member (23). The multi-stage screening plate (13) comprises a vertical plate (14) and a screening plate (15). A slide groove (16) is provided on one side of a frame leg of the frame body (1). Slide blocks (17) are connected to both sides of the vertical plate (14). The slide groove (16) and the slide block (17) are slidably matched. A second spring (18) is provided at both upper and lower ends of the slide block (17). One end of the second spring (18) is connected to the slide groove (16). The screening plate (15) is obliquely arranged on the vertical plate (14) and is located below the material discharge hole (8). The second driving member (23) is arranged on the vertical plate (14) to drive the vertical plate (14) to vibrate.

3. A corn seed thresher as claimed in claim 1, characterized in that: The sieve plates (15) are provided in plurality and are arranged at equal intervals along the height direction of the vertical plate (14); the plurality of sieve plates (15) are each provided with a sieve hole (19); the apertures of the sieve holes (19) decrease in sequence from top to bottom.

4. A corn seed thresher as claimed in claim 1, characterized in that: The other end of the shell (4) is provided with a debris removal opening (20), and the debris removal opening (20) is located at the lower end of the shell (4).

5. A corn seed thresher as claimed in claim 1, characterized in that: The shell body (4) is provided with a shell cover (21), and the shell cover (21) is provided with a feed hopper (22).

6. A corn seed thresher as claimed in claim 4, characterized in that: The connecting rods (10) are provided in plurality and are arranged at equal intervals along the circumferential direction of the connecting shaft (6).

7. A corn seed thresher as claimed in claim 4, characterized in that: The first driving member (5) is specifically a driving motor, and the second driving member (23) is specifically a vibration motor.

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