Corn seed winnowing device

Abstract

The utility model discloses a winnowing device for corn seeds, which belongs to the technical field of seed winnowing and comprises a winnowing machine, a feeding port is arranged at the top end of the winnowing machine, a driving motor is fixedly connected to one side above the winnowing machine, a group of fans is fixedly connected to the middle of the front side of the winnowing machine, and the fan is arranged in the winnowing machine. An obliquely-arranged filter screen is fixedly connected to the position, close to the upper portion, in the winnowing machine, an impurity discharging groove is formed in the rear side of the winnowing machine, a pair of supporting rods is fixedly connected to each of the two sides of the filter screen, and supporting shafts are arranged at the positions, close to the upper ends, of the opposite faces of the two supporting rods located at the same front-back position. According to the scheme, corn seeds are vibrated in a reciprocating motion mode, then soil impurities attached to the surfaces of the corn seeds fall off, the follow-up winnowing effect is improved, the structure of a driving part for reciprocating adjustment of the filter screen is simplified through the linkage assembly, the use cost is reduced, and the reciprocating adjustment stability of the filter screen is synchronously guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of seed air selection, and more specifically to an air selection device for corn seeds. Background Art

[0002] Corn seeds are reproductive bodies that have the ability to grow into mature corn plants. They are formed by ovules through pollination and fertilization. Corn seeds are composed of three parts: seed coat, embryo and endosperm. After the corn matures, the mature seeds need to be peeled and then dried. After the seeds are peeled and dried, they need to be winnowed by a winnowing machine to remove impurities and empty grains, leaving plump grains.

[0003] Based on the above, the inventors found that the existing air selection devices mainly select and classify corn seeds according to weight, but the corn seeds are easily contaminated with dust, impurities and even soil during the process from peeling to air selection, which increases the weight of the corn seeds, affects the air selection results, and causes inconvenience in subsequent cleaning. Therefore, in view of this, the existing structure is studied and improved, and a corn seed air selection device is provided, in order to achieve a more practical purpose. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In response to the problems existing in the prior art, the purpose of the utility model is to provide a corn seed air selection device. This scheme causes the corn seeds to vibrate by reciprocating movement, thereby causing soil impurities adhered to their surface to fall off, thereby improving the subsequent air selection effect. The driving structure of the reciprocating adjustment of the filter is simplified through a linkage component, thereby reducing the cost of use and simultaneously ensuring the stability of the reciprocating adjustment of the filter.

[0006] 2. Technical solution

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] A corn seed air selection device comprises an air selector, wherein a feed port is provided at the top of the air selector, a driving motor is fixedly connected to one side of the upper part of the air selector, a group of fans is fixedly connected to the middle part of the front side of the air selector, an inclined filter is fixedly connected to the upper part of the interior of the air selector, and an impurity discharge chute is provided at the rear side of the air selector, a pair of support rods are fixedly connected to both sides of the filter, support shafts are provided at the upper ends of the opposite surfaces of the two support rods located at the same front and rear positions, semi-toothed rings are fixedly connected to both ends of the support shafts, and linkage mechanisms are provided at the outer sides of the opposite surfaces of the two semi-toothed rings located at the same horizontal position;

[0009] The linkage mechanism includes two symmetrically arranged first transmission rings, a second transmission ring is arranged on the inner side of the first transmission ring, and a transmission belt is sleeved on the outer side of the opposite surfaces of the first transmission ring and the second transmission ring, and a linkage gear ring is fixedly connected to one side of the second transmission ring.

[0010] Furthermore, a first baffle plate and a second baffle plate are fixedly connected at the center and the lower part of the interior of the winnowing machine respectively, and the first baffle plate and the second baffle plate are both arranged in an inclined shape.

[0011] Furthermore, the two first baffles are located directly below the filter, and the second baffle and the fan are located at the same horizontal position.

[0012] Furthermore, notches are provided at the upper end and the middle of the impurity discharge trough, and the two notches are respectively matched with the first baffle and the second baffle.

[0013] Furthermore, the support rod is slidably connected to the inner side of the winnowing machine, the semi-toothed ring is located on the inner side of the upper end of the support rod, and one side of the semi-toothed ring is meshingly connected to the support rod.

[0014] Furthermore, the output end of the driving motor is fixedly connected to the adjacent first transmission ring, and the first transmission ring is fixedly connected to the half gear ring.

[0015] Furthermore, the first transmission ring and the second transmission ring are both movably connected to the winnowing machine, and two adjacent linkage gear rings are meshedly connected.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] (1) This solution sets a half-tooth ring to rotate, driving one side of the tooth block to engage with the inner side of the support rod, so that the support rod drives the filter to rise. As the half-tooth ring continues to rotate, one side of the tooth block is driven to separate from the support rod. The support rod continues to support and drive the filter to slide down and reset, thereby causing the filter to vibrate. Compared with the prior art, the corn seeds are vibrated by reciprocating movement, thereby falling off the soil impurities adhering to the surface, thereby improving the subsequent air selection effect.

[0019] (2) By setting up a linkage mechanism, when the first transmission ring and the half-toothed ring at both ends of the first support shaft rotate, the first pair of linkage toothed rings rotate under the action of the transmission belt and the second transmission ring, and the first transmission ring and the half-toothed ring at both ends of the second support shaft rotate synchronously in the opposite direction through the mutual cooperation of adjacent linkage toothed rings. Compared with the prior art, the linkage assembly simplifies the structure of the driving component for reciprocating adjustment of the filter, reduces the cost of use, and simultaneously ensures the stability of the reciprocating adjustment of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a cross-sectional view of the air separator of the utility model;

[0022] Figure 3 It is a schematic diagram of the position relationship between the support rod and the support shaft of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the linkage mechanism of the utility model.

[0024] Explanation of the numbers in the figure: 1. Air separator; 2. Feed inlet; 3. Drive motor; 4. Fan; 5. Filter; 6. Impurity discharge trough; 7. Support rod; 8. Support shaft; 9. Half gear ring; 10. Linkage mechanism; 11. First baffle; 12. Second baffle; 13. First transmission ring; 14. Second transmission ring; 15. Transmission belt; 16. Linkage gear ring. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0026] Example:

[0027] See also Figure 1-4 A corn seed air selection device comprises an air selector 1, a feed port 2 is provided at the top of the air selector 1, a driving motor 3 is fixedly connected to one side of the upper part of the air selector 1, a group of fans 4 are fixedly connected to the middle of the front side of the air selector 1, an inclined filter screen 5 is fixedly connected to the upper part of the interior of the air selector 1, and an impurity discharge chute 6 is provided at the rear side of the air selector 1, a pair of support rods 7 are fixedly connected to both sides of the filter screen 5, support shafts 8 are provided at the upper ends of the opposite surfaces of the two support rods 7 located at the same front and rear positions, semi-toothed rings 9 are fixedly connected to both ends of the support shaft 8, and linkage mechanisms 10 are provided at the outer sides of the opposite surfaces of the two semi-toothed rings 9 located at the same horizontal position;

[0028] The linkage mechanism 10 includes two symmetrically arranged first transmission rings 13, a second transmission ring 14 is arranged on the inner side of the first transmission ring 13, and a transmission belt 15 is sleeved on the outer side of the opposite surfaces of the first transmission ring 13 and the second transmission ring 14, and a linkage gear ring 16 is fixedly connected to one side of the second transmission ring 14. In order to simplify the driving structure of the filter 5, the linkage mechanism 10 is provided.

[0029] See also Figure 2 A first baffle 11 and a second baffle 12 are fixedly connected at the center and the bottom of the air separator 1 respectively. The first baffle 11 and the second baffle 12 are both arranged in an inclined shape, and the dust and impurities shaken off the filter 5 fall onto the first baffle 11.

[0030] See also Figure 2 The two first baffles 11 are located directly below the filter screen 5 , and the second baffle 12 and the fan 4 are located at the same horizontal position. The fan 4 blows the corn seeds dropped on the filter screen 5 , and blows the impurities and shriveled seeds toward the second baffle 12 .

[0031] See also Figure 2 The upper end and the middle part of the impurity discharge trough 6 are provided with slots, and the two slots are respectively matched with the first baffle 11 and the second baffle 12. The impurities and unqualified seeds collected by the first baffle 11 and the second baffle 12 are discharged through the impurity discharge trough 6, and the qualified corn seeds are discharged from the bottom end of the air separator 1.

[0032] See also Figure 3 The support rod 7 is slidably connected to the inner side of the air separator 1, the semi-toothed ring 9 is located on the inner side of the upper end of the support rod 7, and one side of the semi-toothed ring 9 is meshed with the support rod 7, and the two semi-toothed rings 9 are connected as a whole through the support shaft 8. When the semi-toothed ring 9 rotates, one side of the tooth block is meshed with the inner side of the support rod 7, so that the support rod 7 drives the filter screen 5 to rise. As the semi-toothed ring 9 continues to rotate, one side of the tooth block is separated from the support rod 7, and the support rod 7 continues to support, driving the filter screen 5 to slide down and reset, thereby causing the filter screen 5 to vibrate, so that the soil impurities adhered to the surface of the corn seeds on the filter screen 5 fall off.

[0033] See also Figure 4 The output end of the driving motor 3 is fixedly connected to the adjacent first transmission ring 13, and the first transmission ring 13 is fixedly connected to the half gear ring 9. The driving motor 3 is started to drive the corresponding first transmission ring 13 and the half gear ring 9 to rotate. Under the action of the transmission belt 15 and the second transmission ring 14, the first pair of linkage gear rings 16 rotates.

[0034] See also Figure 4 The first transmission ring 13 and the second transmission ring 14 are both movably connected to the winnowing machine 1, and the two adjacent linkage gear rings 16 are meshed and connected. Through the mutual cooperation of the adjacent linkage gear rings 16, the first transmission ring 13 and the second transmission ring 14 on the other side rotate in the opposite direction.

[0035] When in use: corn seeds are put into the air separator 1 through the feed port 2 so that they fall on the surface of the filter screen 5, the drive motor 3 is started, and the corresponding first transmission ring 13 and the half-toothed ring 9 are driven to rotate. Under the action of the transmission belt 15 and the second transmission ring 14, the first pair of linked toothed rings 16 are rotated, and the first transmission ring 13 and the second transmission ring 14 on the other side are rotated in the opposite direction through the mutual cooperation of the adjacent linked toothed rings 16. When the half-toothed ring 9 rotates, one side of the tooth block is driven to mesh with the inner side of the support rod 7, so that the support rod 7 drives the filter screen 5 to rise. As the half-toothed ring 9 continues to rotate, one side of the tooth block is driven to mesh with the support rod 7. The support rod 7 continues to support and drives the filter screen 5 to slide down and reset, thereby causing the filter screen 5 to vibrate, so that the soil impurities adhered to the surface of the corn seeds on the filter screen 5 fall off, and the shaken-off dust and impurities fall onto the first baffle 11, and the corn seeds fall from the bottom of the filter screen 5. When passing through the horizontal position of the fan 4, the fan 4 blows the corn seeds fallen on the filter screen 5, and blows the impurities and shriveled seeds to the second baffle 12. The impurities and unqualified seeds collected by the first baffle 11 and the second baffle 12 are discharged through the impurity discharge trough 6, and the qualified corn seeds are discharged from the bottom of the air separator 1, thereby completing the air separation of the corn seeds.

[0036] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0037] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A corn seed air selection device, comprising an air selection machine (1), wherein a feed port (2) is provided at the top of the air selection machine (1), a driving motor (3) is fixedly connected to one side of the upper side of the air selection machine (1), and a group of fans (4) is fixedly connected to the middle of the front side of the air selection machine (1), characterized in that: The interior of the air separator (1) is fixedly connected to an inclined filter screen (5) at the top, and an impurity discharge trough (6) is provided at the rear side of the air separator (1). A pair of support rods (7) are fixedly connected to both sides of the filter screen (5). Support shafts (8) are provided at the upper ends of the opposing surfaces of the two support rods (7) located at the same front and rear positions. Semi-toothed rings (9) are fixedly connected to both ends of the support shafts (8). A linkage mechanism (10) is provided at the outer sides of the opposing surfaces of the two semi-toothed rings (9) located at the same horizontal position. The linkage mechanism (10) comprises two symmetrically arranged first transmission rings (13), a second transmission ring (14) is arranged on the inner side of the first transmission ring (13), a transmission belt (15) is sleeved on the outer side of the opposing surfaces of the first transmission ring (13) and the second transmission ring (14), and a linkage gear ring (16) is fixedly connected to one side of the second transmission ring (14).

2. A corn seed air selection device according to claim 1, characterized in that: A first baffle (11) and a second baffle (12) are fixedly connected at the center and at the bottom of the interior of the winnowing machine (1), respectively; the first baffle (11) and the second baffle (12) are both arranged in an inclined shape.

3. The corn seed air selection device according to claim 2, characterized in that: The two first baffles (11) are located directly below the filter (5), and the second baffle (12) and the fan (4) are located at the same horizontal position.

4. The corn seed air selection device according to claim 2, characterized in that: The upper end and the middle part of the impurity discharge trough (6) are both provided with slots, and the two slots are respectively matched with the first baffle (11) and the second baffle (12).

5. The corn seed air selection device according to claim 1, characterized in that: The support rod (7) is slidably connected to the inner side of the winnowing machine (1); the semi-toothed ring (9) is located on the inner side of the upper end of the support rod (7); and one side of the semi-toothed ring (9) is meshingly connected to the support rod (7).

6. The corn seed air selection device according to claim 1, characterized in that: The output end of the driving motor (3) is fixedly connected to the adjacent first transmission ring (13), and the first transmission ring (13) is fixedly connected to the semi-toothed ring (9).

7. The corn seed air selection device according to claim 1, characterized in that: The first transmission ring (13) and the second transmission ring (14) are both movably connected to the winnowing machine (1), and two adjacent linkage gear rings (16) are meshedly connected.

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