Efficient screening device for rice breeding

Abstract

The utility model relates to the field of breeding, in particular to an efficient screening device for rice breeding, and aims to solve the technical problem that in the prior art, mildew seeds and bad seeds are removed through winnowing, but improved seeds are easy to screen out due to direct blowing. Comprising a screening chamber, an input shaft, a ball sleeve, a first ball head rod, a screen drum, a sliding drum, a second ball head rod, a ball groove drum, a first seed injection pipe, a discharging opening, a second seed injection pipe, a gettering pipe, a corrugated hose and a gettering opening, the input shaft eccentrically rotates through the ball sleeve, the ball head rod at the feeding end of the screen drum serves as a fulcrum, the ball head rod at the discharging end of the screen drum serves as a moving point to shake, rice seeds are shaken in a large amplitude, and mildew seeds, bad seeds and good seeds are all scattered and raised; dust and scraps are screened out through the filtering holes, the impurity suction fan collects light bad seeds through the impurity discharging opening, and screening is completed.

Description

Technical Field

[0001] The utility model relates to the field of breeding, in particular to a high-efficiency screening device for rice breeding. Background Art

[0002] Rice is one of the world's most important food crops. Improving rice yield, quality, and stress resistance is crucial to ensuring global food security. Breeding and screening is a key step in cultivating superior rice varieties, directly related to rice production and development. Screening out moldy and bad rice varieties is also an important way to increase food production.

[0003] The prior art uses air separation to remove moldy and bad seeds, but the direct air blowing can easily screen out good seeds. The utility model solves the above problem. Utility Model Content

[0004] The utility model aims to solve the technical problem that the prior art uses wind selection to remove moldy and bad seeds, but direct air blowing easily screens out good seeds, and thus provides a high-efficiency screening device for rice breeding.

[0005] The cam is connected to the roller coaster by the roller coaster gear, and the roller coaster gear is connected to the roller coaster by the roller coaster gear.

[0006] Furthermore, a bottom wall of the screening chamber below the discharge port is connected with an inclined block, and a seed discharge port is provided on a side wall of the screening chamber at the lowest point of the inclined block.

[0007] Beneficial effects of the utility model:

[0008] The input shaft rotates eccentrically through the ball sleeve, and the screen drum is shaken with the ball head rod at the feed end as the fulcrum and the ball head rod at the discharge end as the moving point, so that the rice seeds are shaken with a large amplitude, and the moldy, bad and good seeds are all scattered and raised, and the dust and debris are screened out through the filter holes. The suction fan collects the lighter bad seeds through the discharge port to complete the screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0010] Figure 2 It is a schematic cross-sectional view of the structure of the utility model;

[0011] Figure 3 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0012] In the figure: screening chamber 1; input shaft 2; ball sleeve 3; ball rod 1 4; screen cylinder 5; slide cylinder 6; ball rod 2 7; ball groove cylinder 8; seed injection pipe 1 9; discharge port 10; seed injection pipe 2 11; debris suction pipe 12; corrugated hose 13; debris discharge port 14; inclined block 15; seed discharge port 16. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0014] The rotational connection described in this device refers to the process of baking the bearing on the shaft, providing a spring retaining ring groove on the shaft or the shaft hole, and clamping the elastic retaining ring in the retaining ring groove to achieve axial fixation of the bearing and realize rotation; the articulation refers to a connection method that is achieved by performing activities on connecting parts such as hinges, pins and short shafts.

[0015] The present invention will be described in detail below with reference to the accompanying drawings.

[0016] Example 1:

[0017] The following is combined with Figure 1-3 The present embodiment describes an efficient screening device for rice breeding, comprising: a screening chamber 1, wherein the side wall of the screening chamber 1 is rotatably connected to an input shaft 2, the inner end of the input shaft 2 is eccentrically connected to the edge of a ball sleeve 3, the ball head of a ball head rod 1 4 is rotatably connected in the ball sleeve 3, the rod end of the ball head rod 1 4 is connected to the axis of one end of a screen drum 5, and the other end of the screen drum 5 is connected to two symmetrically arranged slide cylinders 6, the rod end of a ball head rod 2 7 is slidably connected in the slide cylinder 6, the ball head of the ball head rod 2 7 is rotatably connected to the ball groove cylinder 8, and the ball groove cylinder 8 is connected to the inner wall of the screening chamber 1. The upper part of one end of the screen drum 5 is connected with a seed injection pipe 9, and the lower part of the other end of the screen drum 5 is provided with a discharge port 10. The ball head rod 4 is located on the side of the discharge port 10. When the ball sleeve 3 is located directly above the input shaft 2, the screen drum 5 is in a horizontal state. The top wall of the screening chamber 1 is connected with a seed injection pipe 2 11 and a debris suction pipe 12. The debris suction pipe 12 is connected to the debris suction fan. The seed injection pipe 2 11 is connected to the seed injection pipe 9 through a corrugated hose 13. The debris suction pipe 12 is connected to the debris discharge port 14 through the corrugated hose 13. The debris discharge port 14 is opened at the upper part of the screen drum 5.

[0018] Rice seeds are injected into the screen drum 5 through the seed injection pipe 2 11, the corrugated hose 13, and the seed injection pipe 1 9. The input shaft 2 is turned on to drive the ball sleeve 3 to rotate eccentrically. The ball sleeve 3 drives the ball head rod 1 4 to rotate. The ball head rod 1 4 drives the ball head rod 2 7 to rotate in the ball groove drum 8 through the screen drum 5 and the slide drum 6. The screen drum 5 shakes. Since the slide drum 6, the ball head rod 2 7, and the ball groove drum 8 are all arranged in two symmetrical groups, the screen drum 5 will not rotate radially when shaking. The seed injection pipe 1 9 always remains in the screening chamber. 1, the corrugated hose 13 will not break when shaking and stretching. Because the screen drum 5 is in a horizontal state when the ball sleeve 3 is located directly above the input shaft 2, the screen drum 5 will not turn upward to cause the rice seeds to flow back. The screen drum 5 drives the rice seeds to shake with a large amplitude, and the moldy, bad and good seeds are all scattered and raised. Dust and debris are screened out through the filter holes of the screen drum 5. The suction fan collects the lighter, scattered bad seeds through the discharge port 14, the corrugated hose 13 and the suction pipe 12, and the good seeds are discharged through the discharge port 10, completing the screening.

[0019] The bottom wall of the screening chamber 1 below the discharge port 10 is connected to an inclined block 15, and a seed discharge port 16 is opened on the side wall of the screening chamber 1 at the lowest point of the inclined block 15;

[0020] The fine seeds falling from the discharge port 10 fall on the inclined surface of the inclined block 15 and are discharged through the seed discharge port 16.

[0021] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0022] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An efficient screening device for rice breeding, characterized by: include: The screening chamber (1) is provided with an input shaft (2) which is rotatably connected to the side wall of the screening chamber (1). The inner end of the input shaft (2) is eccentrically connected to the edge of the ball sleeve (3). The ball head of the ball head rod (4) is rotatably connected in the ball sleeve (3). The rod end of the ball head rod (4) is connected to the axis of one end of the screen cylinder (5). The other end of the screen cylinder (5) is connected to two symmetrically arranged slide cylinders (6). The rod end of the ball head rod (7) is slidably connected in the slide cylinder (6). The ball head of the ball head rod (7) is rotatably connected to the ball groove cylinder (8). The ball groove cylinder (8) is connected to the inner wall of the screening chamber (1). The upper part of one end of the screen cylinder (5) is connected to the seed injection pipe. The screen drum (5) is provided with a discharge port (10) at the lower part of the other end thereof, the ball rod (4) is located on the side of the discharge port (10), and the screen drum (5) is in a horizontal state when the ball sleeve (3) is located just above the input shaft (2). The top wall of the screening chamber (1) is connected with a second seed injection pipe (11) and a dust suction pipe (12), and the dust suction pipe (12) is connected with a dust suction fan. The second seed injection pipe (11) is connected with the first seed injection pipe (9) through a corrugated hose (13), and the dust suction pipe (12) is connected with a dust discharge port (14) through a corrugated hose (13), and the dust discharge port (14) is opened at the upper part of the screen drum (5).

2. The high-efficiency screening device for rice breeding according to claim 1, characterized in that: The bottom wall of the screening chamber (1) below the discharge port (10) is connected with an inclined block (15), and a seed discharge port (16) is opened on the side wall of the screening chamber (1) at the lowest point of the inclined block (15).

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