A multi-stage screening device for soybean breeding

Abstract

The utility model relates to soybean breeding technical field especially relates to a multistage screening device for soybean breeding, a multistage screening device for soybean breeding, including have shell etc., the shell is the casing of upper and lower opening, four support legs are fixedly connected with interval in the shell lower part, the top of shell is fixedly connected with the feeding hopper, the inside of shell is provided with the screening assembly for carrying out multistage screening to soybean, the shell right side is provided with the swing assembly for driving screening assembly to swing, the discharge assembly for carrying out the discharge to the soybean after screening is commonly provided with between the shell front side and support leg, the utility model discloses through screening frame swing, makes soybean full rolling screening, can accurate classification according to the size of particle, screens out small particle and impurity, is favorable to the differentiation fertilization, promotes sowing effect and sprouting rate. And the screening frame is inclined when discharging, and soybean automatically rolls down, and discharging is convenient, still can concentrate and collect small particle and impurity, reduce the trouble of cleaning.

Description

Technical Field

[0001] This utility model relates to the field of soybean breeding technology, and in particular to a multi-stage screening device for soybean breeding. Background Technology

[0002] As one of my country's important food crops, soybeans require differentiated fertilization plans based on the size of soybean grains during the sowing process.

[0003] Patent publication number CN220759885U discloses a soybean seed screening device. This device uses three sieves of different sizes to classify soybean seeds according to particle size, while removing unqualified small seeds and impurities, effectively improving sowing results and seed germination rate.

[0004] However, in actual application of this solution, it was found that the discharge blade has a blind spot, which makes soybeans easy to accumulate on the screen plate, resulting in insufficient screening. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a multi-stage screening device for soybean breeding.

[0006] The technical solution is as follows: a multi-stage screening device for soybean breeding, including an outer shell, which is an open shell at the top and bottom, four support legs fixedly connected at intervals at the bottom of the outer shell, a feeding hopper fixedly connected to the top of the outer shell, a screening component for multi-stage screening of soybeans inside the outer shell, a swing component for driving the screening component to swing on the right side of the outer shell, and a discharge component for discharging the screened soybeans together between the front side of the outer shell and the support legs.

[0007] As a further preferred embodiment, the screening assembly includes a rotating shaft and a screening frame. Three rotating shafts are arranged at intervals on both the left and right panels of the outer casing. Screening frames are fixedly connected between two rotating shafts at the same height. Each of the three screening frames has a screen hole, and the diameter of the screen hole on the three screening frames gradually decreases from top to bottom. The front and rear panels of the outer casing are set as arc surfaces corresponding to the three screening frames.

[0008] As a further preferred embodiment, the swing assembly includes a guide rod, sliders, rack, gears, and an electric push rod. The guide rod is fixedly connected to the right side of the housing, and three sliders are slidably arranged on the guide rod at intervals. The rear ends of the three sliders are fixedly connected to a rack. The right ends of the three rotating shafts on the right side are all fixedly connected to gears, and the rack meshes with the three gears respectively. An electric push rod is installed on the right side of the housing, and the telescopic end of the electric push rod is fixedly connected to the slider located in the middle.

[0009] As a further preferred embodiment, the discharge assembly includes a hinge seat, a sealing plate, a limiting rod, an inclined groove, and a sliding plate. The front panel of the outer shell has three discharge ports spaced apart. Two hinge seats are fixedly connected at intervals above the three discharge ports on the outer wall of the front panel of the outer shell. A sealing plate is rotatably connected between two adjacent hinge seats. The three sealing plates can respectively close the three discharge ports. Three limiting rods are slidably arranged vertically at intervals on the front side of the right panel of the outer shell. The three limiting rods can respectively limit the rotation of the three sealing plates. An inclined groove is fixedly connected between the lower parts of the four legs. A sliding plate is slidably arranged on the front side of the inclined groove.

[0010] As a further preferred option, it also includes a guide trough and a guide hopper. The front panel of the outer casing is fixedly connected to the guide trough at the lower side of the three discharge ports, and the bottom of the outer casing is fixedly connected to the guide hopper.

[0011] As a further preferred embodiment, it also includes a mounting plate and a fan. Two mounting plates are fixedly connected at intervals between the lower parts of the two legs on the right side, and a fan is installed between the two mounting plates.

[0012] This invention has the following advantages: By swinging the screening frame, the soybeans are thoroughly sifted and sorted according to size, effectively removing small grains and impurities. This facilitates differentiated fertilization and improves sowing efficiency and germination rate. Furthermore, the tilted screening frame during discharge causes the soybeans to roll off automatically, making discharge convenient and allowing for the centralized collection of small grains and impurities, reducing cleaning hassles. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional structural diagram of the rotating shaft and screening frame of this utility model.

[0015] Figure 3 This is a three-dimensional structural cross-sectional view of the outer shell of this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the fixing plate and fan of this utility model.

[0017] The following are the labels in the diagram: 1. Outer shell, 2. Support leg, 21. Feed hopper, 31. Rotating shaft, 32. Screening frame, 33. Screen hole, 34. Arc surface, 41. Guide rod, 42. Slider, 43. Rack, 44. Gear, 45. Electric push rod, 51. Discharge port, 52. Hinge seat, 53. Enclosed plate, 54. Limiting rod, 55. Inclined groove, 56. Sliding plate, 61. Guide trough, 62. Guide hopper, 71. Fixing plate, 72. Fan. Detailed Implementation

[0018] The technical solution will be further described below with reference to specific embodiments. It should be noted that the terms "up," "down," "left," and "right" used in this document refer only to the position of the structure shown in the corresponding drawings. The serial numbers assigned to components in this document, such as "first," "second," etc., are only used to distinguish the described objects and have no sequential or technical meaning. Unless otherwise specified, terms such as "connection" and "linkage" in this application include both direct and indirect connections (linkages).

[0019] Example: A multi-stage screening device for soybean breeding, such as... Figures 1-4 As shown, it includes an outer shell 1, which is an open shell with openings at the top and bottom. Four support legs 2 are welded and fixed at intervals on the lower part of the outer shell 1. A feeding hopper 21 is welded and fixed on the top of the outer shell 1. The feeding hopper 21 is connected to the internal space of the outer shell 1. A screening component for multi-stage screening of soybeans is set inside the outer shell 1. A swing component for driving the screening component to swing is set on the right side of the outer shell 1. A discharge component for discharging the screened soybeans is set together between the front side of the outer shell 1 and the support legs 2.

[0020] like Figure 1 , Figure 2 and Figure 3 As shown, the screening assembly includes a rotating shaft 31 and a screening frame 32. Three rotating shafts 31 are arranged on the left and right panels of the outer casing 1 at intervals. Screening frames 32 are welded and fixed between two rotating shafts 31 at the same height. Each of the three screening frames 32 has a screen hole 33, and the diameter of the screen hole 33 on the three screening frames 32 gradually decreases from top to bottom. The three screening frames 32 can screen soybeans of large, medium and standard size respectively. The front and rear panels of the outer casing 1 are set as arc surfaces 34 corresponding to the three screening frames 32. When the screening frame 32 swings around the adjacent rotating shaft 31, the front and rear sides of the screening frame 32 can keep in contact with the adjacent arc surfaces 34 respectively, so that the soybeans will not fall out of the gap between the screening frame 32 and the outer casing 1.

[0021] like Figure 1 As shown, the swing assembly includes a guide rod 41, a slider 42, a rack 43, a gear 44, and an electric push rod 45. The guide rod 41 is welded and fixed to the right side of the outer casing 1. Three sliders 42 are slidably arranged on the guide rod 41 at intervals. The rear ends of the three sliders 42 are connected by screws to a rack 43. The right ends of the three rotating shafts 31 located on the right side are all fixed with gears 44 by screws. The rack 43 meshes with the three gears 44 respectively. The electric push rod 45 is installed on the right side of the outer casing 1 by bolts. The telescopic rod end of the electric push rod 45 is fixedly connected to the middle slider 42.

[0022] like Figure 1 , Figure 2 and Figure 3As shown, the discharge assembly includes a hinge seat 52, a closing plate 53, a limiting rod 54, an inclined groove 55, and a sliding plate 56. The front panel of the outer shell 1 has three discharge ports 51 spaced apart. Two hinge seats 52 are welded and fixed at intervals on the outer wall of the front panel of the outer shell 1 above the three discharge ports 51. A closing plate 53 is rotatably connected between two adjacent hinge seats 52. The three closing plates 53 can respectively close the three discharge ports 51. The closing plates 53 are all arc-shaped. When the closing plate 53 closes the discharge port 51, the closing plate 53 and the front panel of the outer shell 1 form the same arc surface 34 as the rear panel of the outer shell 1. Three limiting rods 54 are slidably arranged vertically and vertically on the front side of the right panel of the outer shell 1. The three limiting rods 54 can respectively limit the rotation of the three closing plates 53. An inclined groove 55 is fixed between the lower parts of the four support legs 2 by screws. A sliding plate 56 is slidably arranged on the front side of the inclined groove 55.

[0023] First, workers feed soybeans into the outer casing 1 through the feeding hopper 21. The soybeans then fall into the uppermost screening frame 32. Next, workers activate the electric push rod 45. The extension rod of the electric push rod 45 reciprocates, which in turn drives the rack 43 to move up and down through the slider 42. The rack 43 works in conjunction with three gears 44 to drive the three rotating shafts 31 on the right side to perform repeated forward and reverse rotations, causing the three screening frames 32 to swing around adjacent rotating shafts 31. In this way, the soybeans in the screening frames 32 can roll left and right, avoiding accumulation and ensuring that all soybeans can pass through the sieve holes 33. After the soybeans have passed through the three screening frames 32, large, medium, and standard-sized soybeans remain in the three screening frames 32 respectively, while small soybeans and impurities fall into the inclined chute 55. After screening, the electric push rod 45, through the slider 42, rack 43, and gears 44, drives the three screening frames 32 to a forward tilted state (e.g., Figure 3 The soybeans are positioned in the middle screening frame 32, which is aligned with the adjacent discharge port 51. The operator pulls out the three limit rods 54, then flips the three closing plates 53 upwards to open the three discharge ports 51. Under their own weight, the soybeans roll along the inclined screening frame 32, thus discharging the soybeans from the three screening frames 32. The operator then slides the sliding plate 56 upwards to discharge small soybean particles and impurities from the inclined chute 55.

[0024] like Figure 4 As shown, it also includes a guide trough 61 and a guide hopper 62. The guide trough 61 is welded and fixed to the front panel of the outer shell 1 at the lower side of the three discharge ports 51. The guide hopper 62 is fixed to the bottom of the outer shell 1 by bolts.

[0025] By setting up a guide trough 61 and a guide hopper 62, the guide trough 61 facilitates the collection of soybeans discharged from the screening frame 32 by the staff; the guide hopper 62 is used to collect small soybean particles falling from the lower opening of the outer shell 1, preventing them from falling outside the inclined trough 55.

[0026] like Figure 1 As shown, it also includes a fixing plate 71 and a fan 72. Two fixing plates 71 are fixed between the lower parts of the two support legs 2 on the right side by screws, and a fan 72 is installed between the two fixing plates 71.

[0027] By setting up a fixed plate 71 and a fan 72, when small particles and impurities fall from the bottom of the feed hopper 62 into the inclined chute 55, the air blown out by the fan 72 can blow away the dust and other impurities carried therein, reducing the trouble of subsequent cleaning.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-stage screening device for soybean breeding, characterized in that, It includes an outer shell (1), which is an open shell with openings at the top and bottom. Four legs (2) are fixedly connected at intervals at the bottom of the outer shell (1). A feeding hopper (21) is fixedly connected to the top of the outer shell (1). A screening component for multi-stage screening of soybeans is provided inside the outer shell (1). A swing component for driving the screening component to swing is provided on the right side of the outer shell (1). A discharge component for discharging the screened soybeans is provided between the front side of the outer shell (1) and the legs (2).

2. The multi-stage screening device for soybean breeding as described in claim 1, characterized in that, The screening assembly includes a rotating shaft (31) and a screening frame (32). The left and right panels of the outer shell (1) are each equipped with three rotating shafts (31) that rotate vertically at intervals. A screening frame (32) is fixedly connected between two rotating shafts (31) at the same height. Each of the three screening frames (32) has a sieve hole (33), and the diameter of the sieve hole (33) on the three screening frames (32) gradually decreases from top to bottom. The front and rear panels of the outer shell (1) are set as arc surfaces (34) corresponding to the three screening frames (32).

3. The multi-stage screening device for soybean breeding as described in claim 2, characterized in that, The swing assembly includes a guide rod (41), a slider (42), a rack (43), a gear (44), and an electric push rod (45). The guide rod (41) is fixedly connected to the right side of the housing (1). Three sliders (42) are slidably arranged on the guide rod (41) at intervals. The rack (43) is fixedly connected to the rear ends of the three sliders (42). The right ends of the three rotating shafts (31) located on the right side are all fixedly connected to the gears (44). The rack (43) meshes with the three gears (44) respectively. An electric push rod (45) is installed on the right side of the housing (1). The telescopic rod end of the electric push rod (45) is fixedly connected to the middle slider (42).

4. The multi-stage screening device for soybean breeding as described in claim 3, characterized in that, The discharge assembly includes a hinge seat (52), a closing plate (53), a limiting rod (54), an inclined groove (55), and a sliding plate (56). The front panel of the outer shell (1) is provided with three discharge ports (51) spaced apart. On the outer wall of the front panel of the outer shell (1), two hinge seats (52) are fixedly connected at intervals above the three discharge ports (51). A closing plate (53) is rotatably connected between two adjacent hinge seats (52). The three closing plates (53) can respectively close the three discharge ports (51). The front side of the right panel of the outer shell (1) is provided with three limiting rods (54) slidably arranged vertically at intervals. The three limiting rods (54) can respectively limit the rotation of the three closing plates (53). The lower parts of the four legs (2) are fixedly connected with an inclined groove (55). A sliding plate (56) is slidably arranged on the front side of the inclined groove (55).

5. The multi-stage screening device for soybean breeding as described in claim 4, characterized in that, It also includes a guide trough (61) and a guide hopper (62). The front panel of the outer shell (1) is fixedly connected to the guide trough (61) at the lower side of the three discharge ports (51), and the bottom of the outer shell (1) is fixedly connected to the guide hopper (62).

6. The multi-stage screening device for soybean breeding as described in claim 5, characterized in that, It also includes a fixing plate (71) and a fan (72). Two fixing plates (71) are fixedly connected between the lower parts of the two legs (2) on the right side, and a fan (72) is installed between the two fixing plates (71).

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