Agricultural seed selection device with adjustable sieve pores

Abstract

The agricultural seed selection device comprises an installation frame, a screen frame is installed in the installation frame, vibration mechanisms are installed between the two sides of the screen frame and the installation frame, and a screen hole adjusting mechanism is installed at the bottom end of the screen frame. The screen hole adjusting mechanism comprises a concave cavity formed in the middle of the bottom end of the screen frame, an adjusting screen plate installed in the concave cavity, and a driving motor installed at the position, right opposite to the adjusting screen plate, of the lower portion of one side wall of the screen frame. The vibrating screen has the beneficial effects that the screen hole adjusting mechanism is mounted on the lower side of the screen frame, so that the screen frame can drive the screw rod to rotate by virtue of the driving motor according to actual use requirements during use, the sliding of the screen mesh in the concave cavity is adjusted while the screw rod rotates, and the actual falling area of the screen holes in the screen frame is adjusted as required; therefore, seeds with different particle sizes can be screened, and the use flexibility of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural seed selection, in particular to an agricultural seed selection device with adjustable sieve holes. Background Art

[0002] In the process of agricultural planting, in order to ensure the healthy growth of crops after planting, it is necessary to screen the crop seeds with the help of seed selection devices before planting.

[0003] The current seed selection device is mainly composed of a frame, a swinging screen frame installed on the frame, and a cam-link type driving mechanism installed on the frame and located on the lower side of the screen frame. Although the seed selection device of the above structure can use the driving mechanism of the cam link to make the swinging screen swing back and forth to realize the screening of seeds in the screen frame, due to the fixed aperture of the screen frame on the seed selection device of the above structure, the device can only screen seeds of a specific particle size when in use. Since the particle sizes of different crop seeds are different, the types of seeds that can be screened by the seed selection device of the above structure are also limited, which makes the flexibility of the device less. Utility Model Content

[0004] (1) Technical issues to be resolved

[0005] The technical problem to be solved by the utility model is to provide an agricultural seed selection device with adjustable sieve holes and good flexibility in use, in view of the current status of the existing technology.

[0006] (2) Technical solution

[0007] The present invention is achieved through the following technical solutions: The present invention proposes an agricultural seed selection device with adjustable sieve holes, comprising a mounting frame, a sieve frame mounted in the mounting frame, a vibration mechanism mounted between the two sides of the sieve frame and the mounting frame, a sieve hole adjustment mechanism mounted at the bottom end of the sieve frame, the sieve hole adjustment mechanism comprising a concave cavity provided in the middle of the bottom end of the sieve frame, an adjustment mesh plate mounted in the concave cavity, a drive motor mounted at the lower part of one side wall of the sieve frame facing the adjustment mesh plate, and a screw mounted on the power output end of the drive motor and cooperating with the adjustment mesh plate.

[0008] Furthermore, the vibration mechanism includes a vibration motor installed at the middle of the bottom end of the screen frame edge and spring rods installed on the screen frame and located on both sides of the vibration motor.

[0009] By adopting the above technical solution, after the vibration motor is started, the spring rod can be used to realize high-frequency up and down vibration of the screen frame, thereby realizing seed screening.

[0010] Furthermore, the vibration motor is connected to the screen frame by bolts, the telescopic portion of the spring rod is connected to the screen frame by bolts, and the fixed portion of the spring rod is connected to the mounting frame by bolts.

[0011] By adopting the above technical solution, reliable connection between the spring rod, the screen frame and the mounting frame can be ensured.

[0012] Furthermore, the installation frame is provided with a hollow structure at the bottom end of the screen frame, and a discharge baffle is slidably mounted on one side of the screen frame. The discharge baffle and the screen frame are limited by quick-release bolts.

[0013] By adopting the above technical solution, the discharge baffle is opened and the remaining seeds in the screen frame can be collected.

[0014] Furthermore, the adjustment mesh plate is slidably connected to the concave cavity, and the size of the mesh on the adjustment mesh plate is consistent with the size of the mesh at the bottom end of the screen frame.

[0015] By adopting the above technical solution, such a design can achieve adjustment of the actual falling area of ​​the screening holes on the screen frame by misaligning the adjustment mesh plate with the bottom end of the screen frame, thereby achieving screening of seeds with different particle sizes.

[0016] Furthermore, the screw is connected to the driving motor coupling, and the screw is threadedly connected to the adjusting screen.

[0017] By adopting the above technical solution, the driving motor drives the screw to rotate, and the automatic sliding and dislocation of the adjustment screen can be achieved under the action of thread transmission.

[0018] Furthermore, a support leg is welded at the four corners of the bottom end of the installation frame, and the bottom ends of the four support legs are commonly connected to a movable base. An operation panel is also installed on one side wall of the installation frame.

[0019] By adopting the above technical solution, the operation panel mainly controls the orderly operation of the vibration motor and the drive motor by controlling the on-off of the circuit.

[0020] (3) Beneficial effects

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In order to solve the problem that the current seed selection device is mainly composed of a frame, a swinging screen frame installed on the frame, and a cam-link type driving mechanism installed on the frame and located at the lower side of the screen frame, although the seed selection device of the above structure can use the driving mechanism of the cam link to make the swinging screen swing back and forth when in use, thereby realizing the screening of seeds in the screen frame, but since the aperture on the screen frame of the seed selection device of the above structure is fixed, the device can only screen seeds of a specific particle size when in use. Since the particle sizes of different crop seeds are different, the types of seeds that can be screened by the seed selection device of the above structure are also limited, thereby making the device less flexible in use. The present invention installs a screen hole adjustment mechanism on the lower side of the screen frame, so that the screen frame can be driven by a driving motor to rotate the screw according to actual use needs when in use, so as to realize the sliding of the adjustment screen in the concave cavity while the screw rotates, thereby ensuring that the actual falling area of ​​the screening hole in the screen frame is adjusted as needed, thereby realizing the screening of seeds of different particle sizes, and improving the flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a disassembled diagram of an agricultural seed selection device with adjustable sieve holes described in the utility model;

[0024] Figure 2 This is a main cross-sectional view of a screen frame in an agricultural seed selection device with adjustable screen holes described in the utility model;

[0025] Figure 3 This is an agricultural seed selection device with adjustable sieve holes. Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 It is a structural schematic diagram of an adjustable mesh plate in an agricultural seed selection device with adjustable mesh size described in the utility model.

[0027] The following are the descriptions of the reference numerals:

[0028] 1. Screen frame; 2. Vibration mechanism; 201. Vibration motor; 202. Spring rod; 3. Operation panel; 4. Mounting frame; 5. Support legs; 6. Mobile base; 7. Screen aperture adjustment mechanism; 701. Concave cavity; 702. Adjustment screen plate; 703. Drive motor; 704. Screw; 8. Discharge baffle. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] like Figures 1-4As shown, an agricultural seed selection device with adjustable sieve holes in this embodiment includes a mounting frame 4, a sieve frame 1 is mounted in the mounting frame 4, a vibration mechanism 2 is mounted between the two sides of the sieve frame 1 and the mounting frame 4, a sieve hole adjustment mechanism 7 is mounted at the bottom end of the sieve frame 1, and the sieve hole adjustment mechanism 7 includes a concave cavity 701 opened in the middle of the bottom end of the sieve frame 1, an adjustment mesh plate 702 installed in the concave cavity 701, a drive motor 703 installed at the lower part of the side wall of the sieve frame 1 facing the adjustment mesh plate 702, and a screw 704 mounted on the power output end of the drive motor 703 and cooperating with the adjustment mesh plate 702. The drive motor 703 drives the screw 704 to rotate, and the automatic sliding and dislocation of the adjustment mesh plate 702 can be achieved under the action of thread transmission. The mesh size on the adjustment mesh plate 702 is consistent with the mesh size at the bottom end of the sieve frame 1. This design can adjust the actual falling area of ​​the screening holes on the sieve frame 1 by making the adjustment mesh plate 702 misalign with the bottom end of the sieve frame 1, thereby achieving screening of seeds with different particle sizes.

[0031] like Figures 1-4 As shown, in this embodiment, the vibration mechanism 2 includes a vibration motor 201 installed at the middle of the bottom end of the edge of the screen frame 1 and a spring rod 202 installed on the screen frame 1 and located on both sides of the vibration motor 201. After the vibration motor 201 is started, the screen frame 1 will vibrate up and down at high frequency under the action of the spring rod 202, thereby realizing the screening of seeds. The vibration motor 201 is bolted to the screen frame 1, the telescopic part of the spring rod 202 is bolted to the screen frame 1, and the fixed part of the spring rod 202 is bolted to the mounting frame 4, which can ensure the reliable connection between the spring rod 202 and the screen frame 1 and the mounting frame 4.

[0032] like Figures 1-4 As shown, in this embodiment, the bottom end of the mounting frame 4 facing the screen frame 1 is a hollow structure, and a discharge baffle 8 is slidably installed on one side of the screen frame 1. The discharge baffle 8 and the screen frame 1 are limited by quick-release bolts. When the discharge baffle 8 is opened, the remaining seeds in the screen frame 1 can be collected, and the adjustment screen plate 702 is slidably connected to the concave cavity 701, the screw 704 is connected to the drive motor 703 by a coupling, and the screw 704 is threadedly connected to the adjustment screen plate 702. A support leg 5 is welded at the four corners of the bottom end of the mounting frame 4, and the bottom ends of the four support legs 5 are commonly connected to a movable base 6. An operation panel 3 is also installed on one side wall of the mounting frame 4. The operation panel 3 mainly controls the orderly operation of the vibration motor 201 and the drive motor 703 by controlling the on-off of the circuit.

[0033] The specific implementation process of this embodiment is as follows: when it is necessary to screen seeds, first connect the device to an external power supply, and place the seed collection container on the upper end of the mobile base 6, then introduce the seeds to be screened into the screen frame 1, and at the same time start the vibration motor 201. After starting, the vibration motor 201 will drive the screen frame 1 to vibrate up and down at high frequency under the action of the spring rod 202, so that the seeds with qualified particle size can fall from the sieve holes on the screen frame 1 with the help of vibration. During the screening process, the screw 704 can be driven to rotate by the drive motor 703 according to actual use needs, so that the sliding of the screen in the concave cavity 701 can be adjusted while the screw 704 rotates, ensuring that the actual falling area of ​​the screening holes in the screen frame 1 can be adjusted as needed, thereby realizing the screening of seeds of different particle sizes, and improving the flexibility of the device.

[0034] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An agricultural seed selection device with adjustable sieve aperture, characterized in that: The invention comprises a mounting frame (4), a screen frame (1) is mounted in the mounting frame (4), a vibration mechanism (2) is mounted between the two sides of the screen frame (1) and the mounting frame (4), a screen aperture adjustment mechanism (7) is mounted at the bottom end of the screen frame (1), and the screen aperture adjustment mechanism (7) comprises a concave cavity (701) provided in the middle of the bottom end of the screen frame (1), an adjustment screen plate (702) mounted in the concave cavity (701), a driving motor (703) mounted at the lower part of one side wall of the screen frame (1) facing the adjustment screen plate (702), and a screw (704) mounted on the power output end of the driving motor (703) and cooperating with the adjustment screen plate (702).

2. The agricultural seed selection device with adjustable sieve aperture according to claim 1, characterized in that: The vibration mechanism (2) comprises a vibration motor (201) mounted at the middle of the bottom end of the edge of the screen frame (1) and spring rods (202) mounted on the screen frame (1) and located on both sides of the vibration motor (201).

3. The agricultural seed selection device with adjustable sieve aperture according to claim 2, characterized in that: The vibration motor (201) is bolted to the screen frame (1), the telescopic portion of the spring rod (202) is bolted to the screen frame (1), and the fixed portion of the spring rod (202) is bolted to the installation frame (4).

4. The agricultural seed selection device with adjustable sieve aperture according to claim 1, characterized in that: The bottom end of the mounting frame (4) facing the screen frame (1) is a hollow structure, and a discharge baffle (8) is also slidably mounted on one side of the screen frame (1), and the discharge baffle (8) and the screen frame (1) are limited by quick-release bolts.

5. The agricultural seed selection device with adjustable sieve aperture according to claim 1, characterized in that: The adjusting mesh plate (702) is slidably connected to the concave cavity (701), and the size of the mesh on the adjusting mesh plate (702) is consistent with the size of the mesh at the bottom end of the screen frame (1).

6. The agricultural seed selection device with adjustable sieve aperture according to claim 1, characterized in that: The screw rod (704) is connected to the driving motor (703) through a coupling, and the screw rod (704) is threadedly connected to the adjusting mesh plate (702).

7. The agricultural seed selection device with adjustable sieve aperture according to claim 1, characterized in that: A support leg (5) is welded at the four corners of the bottom of the installation frame (4), and the bottom ends of the four support legs (5) are commonly connected to a movable base (6). An operation panel (3) is also installed on one side wall of the installation frame (4).

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