Electrically-driven seeder

Abstract

The utility model relates to the technical field of seeding machines, and provides an electric drive seeding machine which comprises a rack, a seed metering device, a seeding device and a seed bin, the seeding device, the seed bin and the seed metering device are all located on the rack, the seed metering device comprises a seed metering device main body, a seed disc, a seed metering device cover plate and a driving motor, and a seed cleaning structure is arranged on the seed metering device main body. The seed cleaning structure comprises a movable seed cleaning strip and a fixed seed cleaning strip, seed cleaning teeth are arranged on the movable seed cleaning strip and the fixed seed cleaning strip, the fixed seed cleaning strip is fixedly connected with the seed metering device main body, and an adjusting assembly is arranged between the movable seed cleaning strip and the seed metering device main body. According to the technical scheme, the problem that double seedlings occur in the seeding process of an electric seeding machine in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of seed drills, and in particular to an electric-driven seed drill. Background Art

[0002] A seeder generally refers to an agricultural mechanical equipment used to automatically sow seeds in farmland, usually consisting of a frame, one or more seed bins, a seed tray, a sowing device, a drive system and a control system.

[0003] At present, in order to improve the accuracy of seed distribution and the reliability of seed grabbing, most seed trays are equipped with pneumatic systems. However, when the seeds are small and stick to each other due to moisture, the pneumatic seed tray may grab two or more seeds, resulting in "double seedlings" in the electric seeder during the sowing process, affecting the growth and development of crops. Utility Model Content

[0004] The utility model provides an electric drive seeder, which solves the problem of "double seedlings" occurring during the sowing process of the seeder in the related art.

[0005] The technical solution of the utility model is as follows:

[0006] An electric seeder comprises a frame, a seeding device, a sowing device and a seed bin, wherein the sowing device, the seed bin and the seeding device are all located on the frame, the seeding device comprises a seeding device body, a seed tray, a seeding device cover plate and a driving motor, the seeding device body is provided with a seed cleaning structure, the seed cleaning structure comprises a movable seed cleaning bar and a fixed seed cleaning bar, the movable seed cleaning bar and the fixed seed cleaning bar are both provided with seed cleaning teeth, the fixed seed cleaning bar is fixedly connected to the seeding device body, and an adjustment component is provided between the movable seed cleaning bar and the seeding device body.

[0007] Furthermore, the adjustment component includes an adjustment member, a connecting hole, and an elastic member. The connecting hole passes through the inside and outside of the seed metering device body and is located at the end of the movable seed cleaning bar away from the fixed seed cleaning bar. The adjustment member is threadedly connected to the connecting hole, and the end of the adjustment member close to the movable seed cleaning bar abuts against the movable seed cleaning bar. The two ends of the elastic member are respectively fixedly connected to the movable seed cleaning bar and the seed metering device body.

[0008] Furthermore, a calibration body is provided on the main body of the seed metering device, and a scale line for measuring from one end of the adjusting member away from the main body of the seed metering device to the surface of the main body of the seed metering device is provided on the calibration body.

[0009] Furthermore, there are several adjusting members, each of which includes a connecting portion and a contact portion. The connecting portion is threadedly connected to the connecting hole, and the contact portion abuts against the movable seed cleaning strip. The length of the contact portion on each adjusting member is gradually extended.

[0010] Furthermore, the diameter of the connecting portion is greater than the diameter of the contact portion, the connecting hole comprises a limiting countersunk portion, and the connecting portion is threadedly connected to the limiting countersunk portion.

[0011] Furthermore, one end of the movable seed-clearing strip away from the adjusting member is rotatably connected to the seed metering device body, and the projection surface of the movable seed-clearing strip on the end surface of the seed disc is an arc-shaped structure.

[0012] Furthermore, each of the seed cleaning teeth is provided with a transition surface, and each of the transition surfaces is an arc-shaped structure.

[0013] The working principle and beneficial effects of the utility model are:

[0014] The seed-clearing device of the utility model is provided with a seed-clearing structure inside, and the seed-clearing structure includes a fixed seed-clearing bar and a movable seed-clearing bar, the fixed seed-clearing bar is fixedly connected inside the seed-clearing device, and the movable seed-clearing bar is movably connected inside the seed-clearing device, and a channel for seeds to pass through is formed between the fixed seed-clearing bar and the movable seed-clearing bar, and then the spacing distance between the fixed seed-clearing bar and the movable seed-clearing bar is reduced by adjusting the position of the movable seed-clearing bar;

[0015] It is preferred to reduce the distance between the fixed seed-clearing bar and the movable seed-clearing bar to a size that is just large enough for only one seed to pass through, so that seeds that move along with the seeds caught by the seed tray due to sticking or other reasons will be squeezed out due to contact with the fixed seed-clearing bar or the movable seed-clearing bar itself, thereby avoiding the "double seedling" phenomenon during the sowing process of the electric seeder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a structural schematic diagram of Example 1;

[0018] Figure 2 It is a structural schematic diagram of the seeding device in Example 1;

[0019] Figure 3 for Figure 2 Schematic diagram of the internal structure;

[0020] Figure 4 It is a schematic diagram of the structure after the movable seed cleaning bar moves;

[0021] Figure 5 It is a structural schematic diagram of Example 2;

[0022] Figure 6 Schematic diagram of the internal structure of the seeding device in Example 2;

[0023] Figure 7 is a schematic diagram of the adjustment component in Example 2;

[0024] Figure 8 Schematic diagram of the structure of each adjusting member in Example 2.

[0025] In the figure:

[0026] 1. Frame; 2. Seeding device; 21. Seeder body; 22. Seed tray; 23. Seeder cover; 24. Driving motor; 3. Sowing device; 4. Seed bin; 5. Seed cleaning structure; 51. Movable seed cleaning bar; 52. Fixed seed cleaning bar; 53. Seed cleaning tooth; 531. Transition surface; 6. Adjustment component; 61. Adjustment part; 611. Connecting part; 612. Contact part; 62. Connecting hole; 621. Limiting countersunk hole; 63. Elastic part; 7. Calibration body. DETAILED DESCRIPTION

[0027] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example 1

[0029] like Figure 1 As shown, this embodiment proposes an electric seeder, which mainly includes a frame 1, a seeding device 2, a sowing device 3, and a seed bin 4. The sowing device 3, the seed bin 4, and the seeding device 2 are all located on the frame 1, and rollers should be provided on the frame 1 to facilitate sowing work through the cooperation of the seeding device 2, the sowing device 3, and the seed bin 4 while moving the frame 1.

[0030] like Figure 2-3 As shown, the seeding device 2 in this embodiment mainly includes a seeding device body 21, a seeding disc 22, a seeding device cover 23, and a driving motor 24. The seeding disc 22 is rotatably connected between the seeding device body 21 and the seeding device cover 23. After the seeding device body 21 and the seeding device cover 23 are connected to each other, the seeding disc 22 divides the inside of the seeding device 2 into two chambers. In conjunction with the air compressor connected to the seeding device 2, two areas with different air pressures can be formed inside the seeding device 2. How the specific air compressor is connected to the seeding device 2 should be determined according to actual conditions, and this embodiment will not be repeated; at the same time, the seeding disc 22 and the output shaft of the driving motor 24 are linked to each other. When the driving motor 24 rotates, the seeding disc 22 will also rotate together, and a plurality of seeding holes are provided on the seeding disc 22. The seeding holes connect the two chambers, so that the air near the seeding holes is in a flowing state. When the seeds contact the seeding holes, they will be adsorbed on the seeding holes under the action of negative pressure to achieve seed transportation.

[0031] A seed clearing structure 5 is provided on the seed meter body 21, and the seed clearing structure 5 includes a movable seed clearing bar 51 and a fixed seed clearing bar 52. The seed holes on the seed plate 22 will repeatedly pass through the movable seed clearing bar 51 and the fixed seed clearing bar 52 under the driving action of the driving motor 24, that is, a channel for each seed is formed between the movable seed clearing bar 51 and the fixed seed clearing bar 52. When the diameter of the seed itself is larger than the distance between the movable seed clearing bar 51 and the fixed seed clearing bar 52, the seed will be resisted by the movable seed clearing bar 51 or the fixed seed clearing bar 52, thereby detaching from the seed hole; at the same time, The fixed seed-clearing bar 52 is fixedly connected to the seed-seeding device body 21, and the movable seed-clearing bar 51 is movably connected to the seed-seeding device body 21. An adjustment component 6 is provided between the movable seed-clearing bar 51 and the seed-seeding device body 21. The adjustment component 6 can be used to adjust the distance between the movable seed-clearing bar 51 and the fixed seed-clearing bar 52, so that the distance between the movable seed-clearing bar 51 and the fixed seed-clearing bar 52 can only allow one seed to pass through, thereby using the seed-clearing structure 5 to squeeze out the seeds stuck to the adsorbed seeds, avoiding the phenomenon of "double seedlings" during sowing, and ensuring the sowing density.

[0032] like Figure 3-4 As shown, the adjustment component 6 in this embodiment includes an adjustment member 61, a connecting hole 62, and an elastic member 63. The connecting hole 62 runs through the inside and outside of the seed metering device body 21 and is located at the end of the movable seed-clearing bar 51 away from the fixed seed-clearing bar 52, so that the movable seed-clearing bar 51 can be pushed toward the fixed seed-clearing bar 52 by the adjustment member 61; the adjustment member 61 is threadedly connected to the connecting hole 62, and the end of the adjustment member 61 close to the movable seed-clearing bar 51 abuts against the movable seed-clearing bar 51, that is, the adjustment member 61 can be rotated to move toward the movable seed-clearing bar 51, so that the staff can operate the adjustment member 61 to adjust the movable seed-clearing bar 51. The spacing between the seed-clearing strip 51 and the fixed seed-clearing strip 52, and the threaded connection method adopted between the adjusting member 61 and the connecting hole 62, make the adjusting member 61 have a certain self-locking performance after movement, so that the movable seed-clearing strip 51 can be fixed after movement, ensuring the stability of the overall structure of this embodiment; the two ends of the elastic member 63 are respectively fixedly connected to the end of the movable seed-clearing strip 51 away from the fixed seed-clearing strip 52 and the seed metering device body 21, with the help of the elastic potential energy of the elastic member 63, when the adjusting member 61 cancels the abutment relationship with the movable seed-clearing strip 51, the movable seed-clearing strip 51 can be reset by itself, simplifying the operation process.

[0033] The elastic member in this embodiment is preferably a compression spring, because the compression spring is usually made of high-strength metal, has good fatigue resistance and stability, can maintain its performance for a long time, and has a longer service life and more stable performance compared to other elastic elements.

[0034] A calibration body 7 is provided on the seed meter body 21, and a scale line is provided on the calibration body 7 for measuring the distance from one end of the adjusting member 61 away from the seed meter body 21 to the surface of the seed meter body 21, that is, by observing the position of the top of the adjusting member 61 on the scale line, it can be known to which position the movable seed-clearing bar 51 is moved by the adjusting member 61, so that the staff can check the adjustment result and avoid inaccurate adjustment of the spacing between the movable seed-clearing bar 51 and the fixed seed-clearing bar 52 due to human operation.

[0035] The end of the movable seed-clearing bar 51 away from the adjusting member 61 is rotatably connected to the seed-seeding device body 21. After the movable seed-clearing bar 51 is rotatably connected to the seed-seeding device body 21, the seed-seeding device body 21 can constrain the movable seed-clearing bar 51 to prevent the movable seed-clearing bar 51 from loosening or even detaching from the present embodiment due to multiple movements, thereby ensuring the integrity of the overall structure of the present embodiment; and after the movable seed-clearing bar 51 is rotatably connected to the seed-seeding device body 21, when the adjusting member 61 acts on the movable seed-clearing bar 51, the movable seed-clearing bar 51 will rotate with its connection with the seed-seeding device body 21 as the center of the circle. Compared with directly pushing the movable seed-clearing bar 51 to translate, the inertia of the movable seed-clearing bar 51 is moved by rotation. and momentum are more stable and continuous, making the adjustment process smoother, and when the movable seed-clearing bar 51 itself has a certain length, the spacing can be adjusted by rotation, and the spacing between the movable seed-clearing bar 51 and the fixed seed-clearing bar 52 can be greatly shortened with a smaller force and a smaller movement amplitude, thereby fully utilizing the adjustment efficiency of the present embodiment; at the same time, the projection surface of the movable seed-clearing bar 51 on the end surface of the seed disk 22 is an arc-shaped structure, which prevents the adjusted movable seed-clearing bar 51 from blocking the seed-discharging holes, causing the seeds on the seed disk to be squeezed off during the seed-discharging process, so that the movable seed-clearing bar 51 itself is more in line with the movement trajectory of the seed-discharging holes on the seed disk 22, thereby preventing the movable seed-clearing bar 51 from affecting the normal seed-discharging function of the seed-discharging device 2.

[0036] At the same time, in the present embodiment, both the movable seed-cleaning bar 51 and the fixed seed-cleaning bar 52 are provided with seed-cleaning teeth 53. The existence of each seed-cleaning tooth 53 causes a protrusion to exist on the movable seed-cleaning bar 51 or the fixed seed-cleaning bar 52, which makes it easier for the movable seed-cleaning bar 51 and the fixed seed-cleaning bar 52 to contact the seeds and clean the excess seeds; and each seed-cleaning tooth 53 is provided with a transition surface 531, and each transition surface 531 is an arc-shaped structure, so that the contact between the seeds and the seed-cleaning teeth 53 can be smoother, thereby preventing damage to the seeds during the seed cleaning process and ensuring the practicality of the present embodiment.

[0037] Example 2

[0038] like Figures 5 to 8 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes:

[0039] There are several adjusting members 61, each of which includes a connecting portion 611 and a contact portion 612. The connecting portion 611 is threadedly connected to the connecting hole 62, and the contact portion 612 abuts against the movable seed-clearing strip 51. The length of the contact portion 612 on each adjusting member 61 is gradually extended, that is, the length of the contact portion 612 on each adjusting member 61 is different. Each adjusting member 61 matches each seed specification. When it is necessary to perform seeding work on seeds of a certain specification, one of the adjusting members 61 can be selected. There is no need to use the calibration body 7 to know the adjusting effect of the adjusting member 61 on the movable seed-clearing strip 51, so that the adjustment work of the adjusting component 6 is faster and more convenient.

[0040] The diameter of the connecting portion 611 is greater than the diameter of the contact portion 612, and the connecting hole 62 includes a limiting countersunk portion 621. The connecting portion 611 is threadedly connected to the limiting countersunk portion 621, that is, when the connecting portion 611 is rotated to a certain extent, it will come into contact with the limiting countersunk portion 621, thereby limiting the continued movement of the adjusting member 61, thereby reminding the staff that the adjusting member 61 has reached the specified position, and the adjusting member 61 should be set so that the movable seed cleaning strip 51 can only move to its required position when the connecting portion 611 abuts against the limiting countersunk portion 621, so that the way in which the adjusting member 61 adjusts the movable seed cleaning strip 51 is more precise.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric seeder, comprising a frame (1), a seeding device (2), a sowing device (3), and a seed bin (4), wherein the sowing device (3), the seed bin (4), and the seeding device (2) are all located on the frame (1), and the seeding device (2) comprises a seeding device body (21), a seed tray (22), a seeding device cover plate (23), and a driving motor (24), characterized in that: The seed metering device body (21) is provided with a seed clearing structure (5), the seed clearing structure (5) comprises a movable seed clearing bar (51) and a fixed seed clearing bar (52), the movable seed clearing bar (51) and the fixed seed clearing bar (52) are both provided with seed clearing teeth (53), the fixed seed clearing bar (52) is fixedly connected to the seed metering device body (21), and an adjustment component (6) is provided between the movable seed clearing bar (51) and the seed metering device body (21).

2. The electric seeder according to claim 1, characterized in that: The adjusting component (6) comprises an adjusting member (61), a connecting hole (62), and an elastic member (63); the connecting hole (62) penetrates the inside and outside of the seed metering device body (21) and is located at an end of the movable seed-clearing bar (51) away from the fixed seed-clearing bar (52); the adjusting member (61) is threadedly connected to the connecting hole (62), and one end of the adjusting member (61) close to the movable seed-clearing bar (51) abuts against the movable seed-clearing bar (51); and the two ends of the elastic member (63) are respectively fixedly connected to the movable seed-clearing bar (51) and the seed metering device body (21).

3. The electric seeder according to claim 2, characterized in that: The seed metering device body (21) is provided with a calibration body (7), and the calibration body (7) is provided with a scale line for measuring the distance from the end of the adjusting member (61) away from the seed metering device body (21) to the surface of the seed metering device body (21).

4. The electric seeder according to claim 2, characterized in that: There are a plurality of adjusting members (61), each of which comprises a connecting portion (611) and a contact portion (612). The connecting portion (611) is threadedly connected to the connecting hole (62), and the contact portion (612) abuts against the movable seed cleaning strip (51). The length of the contact portion (612) on each adjusting member (61) is gradually extended.

5. The electric seeder according to claim 4, characterized in that: The diameter of the connecting portion (611) is greater than the diameter of the contact portion (612); the connecting hole (62) comprises a limiting countersunk hole portion (621); and the connecting portion (611) is threadedly connected to the limiting countersunk hole portion (621).

6. The electric seeder according to claim 3 or 5, characterized in that: One end of the movable seed-clearing strip (51) away from the adjusting member (61) is rotatably connected to the seed metering device body (21), and the projection surface of the movable seed-clearing strip (51) on the end surface of the seed disk (22) is an arc-shaped structure.

7. The electric seeder according to claim 6, characterized in that: Each of the seed cleaning teeth (53) is provided with a transition surface (531), and each of the transition surfaces (531) is an arc-shaped structure.

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