A rapeseed screening and grading device

Abstract

The utility model provides a kind of rapeseed screening grading device, belong to seed screening field, including bottom plate, the bottom of the bottom plate is fixedly connected with support leg, the top of the bottom plate is fixedly connected with support frame, the inner wall of the support frame is slidably connected with screening board, the side of the screening board is fixedly connected with connecting plate, the side of the support frame is provided with screening device;The screening device includes motor, the side of the motor is fixedly connected in the side of support frame.The utility model is provided with screening device, so that connecting plate will not receive the push of push block and reset spring is driven screening board reset, and then when connecting strip again drives stress strip to move to appropriate position, above-mentioned principle will be repeated, to indirectly drive screening board to sway, so that seed can be better screened, ensure that screening process is smooth, avoid seed from adhering or stationary and cannot pass through screening board.

Description

Technical Field

[0001] This utility model relates to the field of seed screening, and more specifically, to a rapeseed seed screening and grading device. Background Technology

[0002] The main function of the rapeseed seed screening and grading device is to grade and screen rapeseed seeds according to their size, shape, and quality. Through screening, impurities, substandard seeds, and seeds that do not meet quality standards can be removed, thereby improving seed germination rate and yield.

[0003] A search revealed that Chinese patent CN220969441U discloses a "Rapeseed Seed Breeding Screening Device," which includes a screening box. The inner wall of the screening box is fixedly connected to a first partition and a second partition, and a second filter plate is connected between the screening box and the second partition. A first filter plate is connected between the first partition and the second partition. An overflow port is provided on the outer surface of the second partition. The screening box includes a feeding device and a circulation device. The beneficial effect of this invention is that, during operation, the screening box, the first filter plate, and the second filter plate work together to perform water screening on the seeds poured into the screening box. Then, the feeding hopper and the servo motor work together to automatically control the seed input speed. Finally, the circulation pump circulates the screening water, achieving a water-saving effect. However, the following drawbacks still exist: (1) When using seed screening, the above application makes it difficult to shake the screening plate during seed screening, causing seeds to stick together or remain stationary and unable to pass through the screening plate, making it difficult to ensure a smooth screening process. The aforementioned application, when using seed screening, finds it difficult to remove impurities from the seeds through air separation after screening, resulting in a high level of impurities in the seeds and affecting their purity. Therefore, a rapeseed seed screening and grading device is proposed. Utility Model Content

[0004] The purpose of this invention is to address the current problem that it is difficult to shake the sieve plate during seed sieving, causing seeds to stick together or remain stationary and unable to pass through the sieve plate, thus making it difficult to ensure a smooth sieving process.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution: The present invention is as follows: a rapeseed seed screening and grading device, comprising a base plate, a support leg fixedly connected to the bottom of the base plate, a support frame fixedly connected to the top of the base plate, a screening plate slidably connected to the inner wall of the support frame, a connecting plate fixedly connected to the side of the screening plate, and a screening device provided on the side of the support frame. The screening device includes a motor, the side of which is fixedly connected to the side of a support frame. The output shaft of the motor is fixedly connected to a rotating shaft. A drive plate is fixedly connected to the back side of the rotating shaft. A rotating rod is fixedly connected to the back side of the drive plate. A connecting strip is fixedly connected to the circumferential surface of the rotating rod. A connecting shaft is fixedly connected to the back side of the connecting strip. A force-bearing strip is rotatably connected to the circumferential surface of the connecting shaft. A force-bearing shaft is rotatably connected to the inner wall of the force-bearing strip. A push block is fixedly connected to the circumferential surface of the force-bearing shaft.

[0006] As a preferred technical solution of this utility model, a sliding plate is fixedly connected to the inner wall of the support frame, the back side of the force-bearing shaft is slidably connected to the front side of the sliding plate, and an inclined plate is fixedly connected to the inner wall of the support frame. The function of the inclined plate is to guide the selected seeds.

[0007] As a preferred technical solution of this utility model, a reset spring is fixedly connected to the side of the connecting plate. The end of the reset spring away from the connecting plate is fixedly connected to the inner wall of the support frame. The function of the reset spring is to allow the connecting plate to reset by the reset spring when the push block stops pushing the connecting plate.

[0008] As a preferred technical solution of this utility model, the side of the connecting plate is located on the displacement trajectory of the push block, and the number of the screening plates is set to several and arranged linearly along the vertical central axis of the support frame. The function of the side of the connecting plate being located on the displacement trajectory of the push block is to push the connecting plate to move when the push block moves. The function of setting multiple screening plates is to perform multi-stage screening of seeds.

[0009] As a preferred technical solution of this utility model, a wind separator is provided on the top of the base plate. The wind separator includes a worm gear. A pulley is fixedly connected to the circumferential surface of the rotating shaft, and a pulley is fixedly connected to the circumferential surface of the worm gear. The pulley is connected to the pulley via a belt drive. A fixed plate is fixedly connected to the top of the base plate. A rotating rod is rotatably connected to the side of the fixed plate. A turbine is fixedly connected to the circumferential surface of the rotating rod, and a fan blade is fixedly connected to the circumferential surface of the rotating rod. The function of the turbine is to drive the rotating rod to rotate.

[0010] As a preferred technical solution of this utility model, a baffle is fixedly connected to the side of the support frame, and a collection box is provided on the side of the bottom plate. The function of the collection box is to collect the blown-out impurities.

[0011] As a preferred technical solution of this utility model, the worm gear meshes with the turbine, and the top of the fan blade is located below the screening plate. The purpose of meshing the worm gear with the turbine is to drive the turbine to rotate when the worm gear rotates.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. Through the set screening device, when the connecting bar drives the force bar to move backward, the force bar will drive the push block to move. When the push block moves, the connecting plate will be reset by the return spring because it will not receive the pushing force of the push block. Then, when the connecting bar drives the force bar to move to the appropriate position again, the above principle will be repeated, which can indirectly drive the screening plate to shake, so as to better screen the seeds, ensure the screening process is smooth, and avoid seeds from being unable to pass through the screening plate due to sticking or being stationary. 2. Through the set wind separation device, when the turbine rotates, it can drive the rotating rod to rotate on the fixed plate. When the rotating rod rotates, it can drive the fan blade to rotate. In turn, the wind force generated by the fan blade can wind separate the sieved seeds, so that the wind force generated by the fan blade can blow away the lighter impurities and separate them from the normal rapeseed seeds, thereby improving the purity of the seeds. The blown-away impurities will fall into the collection box along the baffle due to the obstruction of the baffle. Attached Figure Description

[0013] Figure 1 A schematic diagram of a rapeseed seed screening and grading device provided by this utility model; Figure 2 A schematic diagram of the overall three-dimensional structure of the screening device provided by this utility model; Figure 3 A schematic diagram of the overall three-dimensional structure of the air separation device provided by this utility model; Figure 4 Provided by this utility model Figure 2 A three-dimensional magnified structural diagram at point A in the middle; Figure 5 Provided by this utility model Figure 3 A three-dimensional magnified structural diagram at point B.

[0014] 1. Base plate; 2. Support leg; 3. Support frame; 4. Screening plate; 5. Connecting plate; 6. Screening device; 61. Motor; 62. Rotating shaft; 63. Drive plate; 64. Rotating rod; 65. Connecting bar; 66. Connecting shaft; 67. Force-bearing bar; 68. Force-bearing shaft; 69. Push block; 610. Slide plate; 611. Inclined plate; 612. Return spring; 7. Air separator; 71. Worm gear; 72. Pulley 1; 73. Pulley 2; 74. Belt; 75. Fixed plate; 76. Rotating rod; 77. Turbine; 78. Fan blade; 79. Baffle; 710. Collection box. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0016] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0017] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] like Figure 1 , Figure 2 , Figure 4 As shown, this embodiment proposes a rapeseed seed screening and grading device, including a base plate 1, a support leg 2 fixedly connected to the bottom of the base plate 1, a support frame 3 fixedly connected to the top of the base plate 1, a screening plate 4 slidably connected to the inner wall of the support frame 3, a connecting plate 5 fixedly connected to the side of the screening plate 4, and a screening device 6 provided on the side of the support frame 3. The screening device 6 includes a motor 61, the side of which is fixedly connected to the side of the support frame 3. The output shaft of the motor 61 is fixedly connected to a rotating shaft 62. The back side of the rotating shaft 62 is fixedly connected to a drive plate 63. The back side of the drive plate 63 is fixedly connected to a rotating rod 64. The circumferential surface of the rotating rod 64 is fixedly connected to a connecting strip 65. The back side of the connecting strip 65 is fixedly connected to a connecting shaft 66. The circumferential surface of the connecting shaft 66 is rotatably connected to a force-bearing strip 67. The inner wall of the force-bearing strip 67 is rotatably connected to a force-bearing shaft 68. The circumferential surface of the force-bearing shaft 68 is fixedly connected to a push block 69.

[0020] like Figure 2 As shown, in a preferred embodiment, based on the above method, the inner wall of the support frame 3 is further fixedly connected to a sliding plate 610, the back side of the force-bearing shaft 68 is slidably connected to the front side of the sliding plate 610, and the inner wall of the support frame 3 is fixedly connected to an inclined plate 611, the function of which is to guide the selected seeds.

[0021] like Figure 2As shown, in a preferred embodiment, based on the above method, a reset spring 612 is further fixedly connected to the side of the connecting plate 5. The end of the reset spring 612 away from the connecting plate 5 is fixedly connected to the inner wall of the support frame 3. The function of the reset spring 612 is to allow the connecting plate 5 to reset by driving the screening plate 4 through the reset spring 612 when the push block 69 stops pushing the connecting plate 5.

[0022] like Figure 2 , Figure 4 As shown, in a preferred embodiment, based on the above method, the side of the connecting plate 5 is located on the displacement trajectory of the push block 69, and the number of screening plates 4 is set to several, and they are arranged linearly along the vertical central axis of the support frame 3. The purpose of the side of the connecting plate 5 being located on the displacement trajectory of the push block 69 is to push the connecting plate 5 to move when the push block 69 moves. The purpose of setting multiple screening plates 4 is to perform multi-stage screening of the seeds.

[0023] like Figure 3 , Figure 5 As shown, in a preferred embodiment, based on the above method, a wind classifier 7 is further provided on the top of the base plate 1. The wind classifier 7 includes a worm gear 71, a pulley 72 fixedly connected to the circumferential surface of the rotating shaft 62, a pulley 73 fixedly connected to the circumferential surface of the worm gear 71, and the pulley 72 and the pulley 73 are connected by a belt 74. A fixing plate 75 is fixedly connected to the top of the base plate 1, a rotating rod 76 is rotatably connected to the side of the fixing plate 75, a turbine 77 is fixedly connected to the circumferential surface of the rotating rod 76, and a fan blade 78 is fixedly connected to the circumferential surface of the rotating rod 76. The function of the turbine 77 is to drive the rotating rod 76 to rotate.

[0024] like Figure 3 As shown, in a preferred embodiment, based on the above method, a baffle 79 is fixedly connected to the side of the support frame 3, and a collection box 710 is provided on the side of the bottom plate 1. The function of the collection box 710 is to collect the blown impurities.

[0025] like Figure 3 , Figure 5 As shown, in a preferred embodiment, based on the above method, the worm 71 meshes with the turbine 77, and the top of the fan blade 78 is located below the screen plate 4. The purpose of meshing the worm 71 with the turbine 77 is to drive the turbine 77 to rotate when the worm 71 rotates.

[0026] Specifically, when using this seed screening and sieving device: First, when it is necessary to screen seeds, the screening device 6 can be used. By starting the motor 61, when the output shaft of the motor 61 rotates, it drives the rotating shaft 62 to rotate. When the rotating shaft 62 rotates, it drives the drive plate 63 to rotate. When the drive plate 63 rotates, it drives the connecting bar 65 to rotate around the drive plate 63 through the rotating rod 64. When the connecting bar 65 rotates, it drives the force-bearing bar 67 to move through the force-bearing shaft 68 via the connecting shaft 66. Thus, when the force-bearing bar 67 moves, it drives the push block 69 to move through the force-bearing shaft 68. Furthermore, when the push block 69 moves... The connecting plate 5 can be moved. When the connecting plate 5 moves, it can drive the screening plate 4 to move. When the connecting bar 65 drives the force bar 67 to move backward, the force bar 67 will drive the push block 69 to move. As a result, when the push block 69 moves, the connecting plate 5 will be able to reset the screening plate 4 by using the return spring 612 because it will not receive the pushing force of the push block 69. Then, when the connecting bar 65 drives the force bar 67 to move to the appropriate position again, the above principle will be repeated, thereby indirectly driving the screening plate 4 to shake, so that the seeds can be screened better, ensuring a smooth screening process and preventing the seeds from being unable to pass through the screening plate 4 due to sticking or being stationary. The rotation of shaft 62 drives the air-separating device 7. When shaft 62 rotates, it drives pulley 72 to rotate. When pulley 72 rotates, belt 74 drives worm gear 71 to rotate within support frame 3 via pulley 73. When worm gear 71 rotates, it drives turbine 77 to rotate. When turbine 77 rotates, it drives rotating rod 76 to rotate on fixed plate 75. When rotating rod 76 rotates, it drives fan blade 78 to rotate. The air force generated by the rotating fan blade 78 can air-separate the sieved seeds, allowing the air force generated by the rotating fan blade 78 to blow away lighter impurities and separate them from normal rapeseed seeds, improving seed purity. The blown-away impurities will fall into collection box 710 along the baffle 79 due to the baffle 79.

[0027] All technical features in this embodiment can be freely combined according to actual needs.

[0028] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A rapeseed seed screening and grading device, comprising a base plate (1), characterized in that, The bottom of the base plate (1) is fixedly connected to a support leg (2), the top of the base plate (1) is fixedly connected to a support frame (3), the inner wall of the support frame (3) is slidably connected to a screening plate (4), the side of the screening plate (4) is fixedly connected to a connecting plate (5), and the side of the support frame (3) is provided with a screening device (6). The screening device (6) includes a motor (61), the side of which is fixedly connected to the side of the support frame (3). The output shaft of the motor (61) is fixedly connected to a rotating shaft (62). The back side of the rotating shaft (62) is fixedly connected to a drive plate (63). The back side of the drive plate (63) is fixedly connected to a rotating rod (64). The circumferential surface of the rotating rod (64) is fixedly connected to a connecting strip (65). The back side of the connecting strip (65) is fixedly connected to a connecting shaft (66). The circumferential surface of the connecting shaft (66) is rotatably connected to a force-bearing strip (67). The inner wall of the force-bearing strip (67) is rotatably connected to a force-bearing shaft (68). The circumferential surface of the force-bearing shaft (68) is fixedly connected to a push block (69).

2. The rapeseed seed screening and grading device according to claim 1, characterized in that, The inner wall of the support frame (3) is fixedly connected to a sliding plate (610), the back side of the force-bearing shaft (68) is slidably connected to the front side of the sliding plate (610), and the inner wall of the support frame (3) is fixedly connected to an inclined plate (611).

3. The rapeseed seed screening and grading device according to claim 1, characterized in that, A reset spring (612) is fixedly connected to the side of the connecting plate (5), and the end of the reset spring (612) away from the connecting plate (5) is fixedly connected to the inner wall of the support frame (3).

4. The rapeseed seed screening and grading device according to claim 1, characterized in that, The side of the connecting plate (5) is located on the displacement trajectory of the push block (69), and the number of the screening plates (4) is set to several, and they are arranged in a linear array along the vertical central axis of the support frame (3).

5. The rapeseed seed screening and grading device according to claim 1, characterized in that, The top of the base plate (1) is provided with a wind separator (7), which includes a worm (71). A pulley (72) is fixedly connected to the circumferential surface of the rotating shaft (62), and a pulley (73) is fixedly connected to the circumferential surface of the worm (71). The pulley (72) and the pulley (73) are connected by a belt (74). A fixed plate (75) is fixedly connected to the top of the base plate (1). A rotating rod (76) is rotatably connected to the side of the fixed plate (75). A turbine (77) is fixedly connected to the circumferential surface of the rotating rod (76), and a fan blade (78) is fixedly connected to the circumferential surface of the rotating rod (76).

6. The rapeseed seed screening and grading device according to claim 1, characterized in that, A baffle (79) is fixedly connected to the side of the support frame (3), and a collection box (710) is provided on the side of the bottom plate (1).

7. The rapeseed seed screening and grading device according to claim 5, characterized in that, The worm (71) meshes with the turbine (77), and the top of the fan blade (78) is located below the sieve plate (4).

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