Inclined posture-adjustable Hami melon seed air-suction type seed-metering device

Abstract

The invention relates to an inclined posture-adjustable Hami melon seed air-suction type seed-metering device. The device comprises a front shell, a rear shell, a seed metering disc and a posture adjusting plate, wherein the front shell and the rear shell are folded to form a shell of the seed metering device; the seed-metering disc is mounted in the shell through a driving shaft, a plurality of conical grooves are uniformly formed in the side, facing the front shell, of the seed-metering disc in the circumferential direction of the seed-metering disc, elliptical adsorption grooves corresponding to Hami melon seeds in size are formed in the bottoms of the conical grooves, and suction holes penetrating through the seed-metering disc are formed in the bottoms of the adsorption grooves; the posture adjusting plate is fixedly installed in the shell, a gap is formed between the posture adjusting plate and the seed metering disc, and the width of the gap is larger than the thickness of the Hami melon seeds and smaller than the width of the Hami melon seeds, so that the Hami melon seeds enter the gap in a side posture all the time. According to the scheme provided by the invention, the problems of reseeding and miss-seeding of the Hami melon seeds can be relieved, and the seed falling posture of the Hami melon seeds is standardized, so that the seeding uniformity is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of Hami melon sowing equipment, and in particular to an inclined and adjustable Hami melon seed air-suction seeding device. Background Art

[0002] Hami melon seeds are lanceolate or ovate, with pointed ends and flat in the middle, smooth surface and generally yellowish white or dirty white. Generally speaking, the planting agronomy requires a plant spacing of 45 to 50 cm, a row spacing of 200 to 250 cm, a sowing depth of 2 to 3 cm, and a soil covering of 3 to 4 cm.

[0003] There are two main ways to plant Hami melons: direct seeding and transplanting. Traditional direct seeding of Hami melons is manual spot seeding, which is time-consuming and labor-intensive, and has low seeding efficiency. Some areas currently use mechanical seeding, but the mechanized seeding equipment currently used is usually modified from a cotton seeder, which is not very targeted. When sowing Hami melons, there are problems of reseeding and missing seeds. Furthermore, the currently used seeding equipment is difficult to control the seeding posture of Hami melon seeds, which causes the Hami melon seeds to bounce easily when in contact with the soil, affecting the uniformity of sowing, thereby affecting the germination rate of Hami melon seeds. Summary of the invention

[0004] In order to solve or partially solve the problems existing in the related art, the present application provides a tilted and adjustable Hami melon seed air-suction seeding device, which can alleviate the problems of overseeding and missed seeding of Hami melon seeds, and standardize the seed placement posture of Hami melon seeds, thereby ensuring the uniformity of sowing.

[0005] The present application provides a tilted and adjustable posture cantaloupe seed air-suction seed metering device, comprising:

[0006] A front shell and a rear shell, which form an outer shell of the seed metering device when closed;

[0007] A seeding disc, wherein the seeding disc is installed in the housing through a driving shaft, and a plurality of conical grooves are evenly arranged along the circumference of the side of the seeding disc facing the front housing, an elliptical adsorption groove corresponding to the size of Hami melon seeds is arranged at the bottom of the conical groove, and a suction hole penetrating the seeding disc is opened at the bottom of the adsorption groove;

[0008] A posture adjustment plate, wherein the posture adjustment plate is fixedly installed in the housing, and a gap is formed between the posture adjustment plate and the seeding disk, wherein the width of the gap is greater than the thickness of the Hami melon seeds and less than the width of the Hami melon seeds, so that the Hami melon seeds always enter the gap in a side posture;

[0009] A seed box, which is mounted on the front shell and is provided with a seed delivery tube, which passes through the front shell and extends into the inside thereof;

[0010] Among them, a closed chamber is formed between the seed disc and the rear shell body, and a partition is arranged on the rear shell body to divide the closed chamber into an adsorption area and a seed dropping area. The adsorption area is provided with a negative pressure interface. By connecting the negative pressure interface to an external negative pressure device, negative pressure can be formed at the suction hole, thereby adsorbing Hami melon seeds; the seed dropping area is provided with a seed dropping tube. As the seed disc rotates, when the suction holes adsorbed with seeds rotate to the seed dropping area, the negative pressure disappears, and the seeds are discharged from the seed dropping tube.

[0011] Optionally, in some embodiments, the seeding disk is provided with guide grooves corresponding to the tapered grooves one by one, and the direction of the guide grooves is consistent with the radial direction of the seeding disk.

[0012] Optionally, in some embodiments, the seed disc is in a bowl-shaped structure, with the concave side facing the front shell.

[0013] Optionally, in some embodiments, the seed box includes a box body, a seed delivery tube, and a connecting plate. A connecting plate is provided at the bottom of the box body and is fixedly installed on the side of the front shell body through the connecting plate. A seed delivery tube is also provided at the bottom of the box body, and the seed delivery tube passes through the front shell body and extends into the adsorption area.

[0014] Optionally, in some embodiments, a limiting sleeve is also obliquely provided on the connecting plate, and an angle between the limiting sleeve and the connecting plate is 20° to 30°.

[0015] Optionally, in some embodiments, a seed drop tube is fixedly installed at the limiting sleeve, and the end of the seed drop tube passes through the front shell body and extends into the seed drop area, wherein the seed drop tube needs to be kept vertical during installation to maintain the posture of the Hami melon seeds when they are discharged.

[0016] Optionally, in some embodiments, a notch is provided at the end of the seed drop tube to facilitate the passage of Hami tube seeds.

[0017] Optionally, in some embodiments, a first connecting ear is provided on the front shell, and a second connecting ear corresponding to the first connecting ear is provided on the rear shell.

[0018] Optionally, in some embodiments, the bottom of the front shell is respectively provided with a first support and a first support leg, and the bottom of the rear shell is provided with a second support corresponding to the first support and a second support leg corresponding to the first support leg.

[0019] The technical solution provided by this application may have the following beneficial effects:

[0020] The present application provides adsorption grooves matching the size of Hami melon seeds on a seeding disk and generates negative pressure at the adsorption grooves so that each adsorption groove can only adsorb and accommodate one seed, thereby alleviating the problems of double seeding and missed seeding; and while adsorbing the Hami melon seeds, the posture of the Hami melon seeds is standardized so that when the Hami melon seeds are discharged, they maintain a vertical posture with the tip facing downward, preventing the Hami melon seeds from bouncing when they come into contact with the soil, thereby ensuring uniformity of sowing.

[0021] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0023] Figure 1 It is a schematic diagram of the overall structure of this application;

[0024] Figure 2 It is a schematic diagram of the overall structure of this application from another perspective;

[0025] Figure 3 It is an exploded view of the structure of this application;

[0026] Figure 4 It is a schematic diagram of the working status of this application;

[0027] Figure 5 It is a structural schematic diagram of the seed box of this application;

[0028] Figure 6 It is a structural schematic diagram of the front shell of the present application;

[0029] Figure 7 It is a partial structural diagram of this application;

[0030] Figure 8 It is a partial structural schematic diagram of the seeding tray of the present application;

[0031] Fig. 9 yes Figure 8 Schematic diagram of the structure of the middle A area;

[0032] Fig.10 It is a side view of the seed tray of the present application;

[0033] Fig.11 It is a partial structural diagram of this application;

[0034] Fig.12 It is a schematic diagram of the structure of the rear housing of the present application;

[0035] Fig.13 It is a partial structural diagram of this application.

[0036] Reference numerals:

[0037] 1-seed box, 11-box body, 12-seed delivery tube, 13-connecting plate, 14-limiting sleeve;

[0038] 2-front housing, 21-first center hole, 22-seed drop hole, 23-seed delivery hole, 24-first connecting ear, 25-first support, 26-first support foot;

[0039] 3-rear housing, 31-second center hole, 32-partition plate, 33-negative pressure interface, 34-second connecting ear, 35-second support, 36-second support foot;

[0040] 4-seed drop tube, 41-notch;

[0041] 5-seed disc, 51-third center hole, 52-guide groove, 53-conical groove, 54-adsorption groove, 55-suction hole;

[0042] 6- Posture adjustment board;

[0043] 7-Drive shaft. DETAILED DESCRIPTION

[0044] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0045] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0046] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application 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, and therefore should not be understood as a limitation on the present application.

[0047] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] See also Figure 1-13 , a tilted and adjustable posture cantaloupe seed air suction seed meter, comprising:

[0049] The front shell 2 and the rear shell 3 form the outer shell of the seed metering device after the front shell 2 and the rear shell 3 are closed. Three first connecting ears 24 are arranged on the front shell 2, and three second connecting ears 34 corresponding to the first connecting ears 24 are arranged on the rear shell 3. After the front shell 2 and the rear shell 3 are closed, the first connecting ears 24 and the second connecting ears 34 are fixed by bolts and nuts, so as to be closed and fixed. The left and right sides of the bottom of the front shell 2 are respectively provided with a first support 25 and a first support leg 26, and the bottom of the rear shell 3 is provided with a second support 35 corresponding to the first support 25, and a second support leg 36 corresponding to the first support leg 26. When the front shell 2 and the rear shell 3 are closed, the outer shell can be fixed on the seeding device through the support and the support leg, which is convenient for use.

[0050] Seed disc 5, see Figure 8-11A drive shaft 7 is rotatably installed between the front shell 2 and the rear shell 3, and the seed disc 5 is fixedly connected to the drive shaft 7. The drive shaft 7 is connected to an external drive device, and the drive shaft 7 can be rotated by the external drive device. The seed disc 5 and the rear shell 3 are airtightly connected, so that a closed chamber is formed between the seed disc 5 and the rear shell 3. A negative pressure interface 33 is also provided on the rear shell 3. By connecting the negative pressure interface 33 to an external negative pressure device, negative pressure is formed in the closed chamber, which is convenient for adsorbing seeds at the seed disc 5; further, the seed disc 5 has a bowl-shaped structure, with its concave side facing the front shell 2, increasing the space for accommodating Hami melon seeds, and its convex side facing the rear shell 3, reducing the volume of the closed chamber. In a smaller space, the negative pressure system can more easily maintain a stable negative pressure level because the air volume is smaller and the air extraction demand is relatively low.

[0051] See also Figure 8 , 9 , a plurality of conical grooves 53 are evenly arranged along the circumference of the seeding disc 5 on one side facing the front shell 2, and an elliptical adsorption groove 54 corresponding to the size of Hami melon seeds is arranged at the bottom of the conical groove 53, and it is necessary to ensure that only one seed can be adsorbed in the adsorption groove 54 at a time, and its specific size can be adjusted according to different varieties of Hami melon seeds. A suction hole 55 is opened at the bottom of the adsorption groove 54 to penetrate the seeding disc 5, and the closed chamber is connected through the suction hole 55. When the external negative pressure device is running, a negative pressure can be formed at the suction hole 55, so that the seeds are adsorbed at the adsorption groove 54. The adsorption groove 54 is set to an elliptical shape because: Hami melon seeds are flat, and the elliptical adsorption groove 54 can minimize the space under the premise of adapting to the shape of the seeds, thereby improving the stability of seed adsorption. Further, a guide groove 52 corresponding to the conical groove 53 is arranged on the seeding disc 5, and the direction of the guide groove 52 is consistent with the radial direction of the seeding disc 5, and the guide groove 52 can make it easier for the seeds to slide into the conical groove 53. For further information, see Fig.12 Two partitions 32 are arranged on the rear shell body 3, and the partitions 32 are tightly connected to the seeding disc 5, thereby dividing the closed chamber into an adsorption area and a seeding area. Negative pressure is formed in the adsorption area by an external negative pressure device, and a seeding tube 4 is arranged in the seeding area. As the seeding disc 5 rotates, when the suction holes 55 with seeds adsorbed rotate to the seeding area, the negative pressure disappears, and the seeds are discharged from the seeding tube 4.

[0052] Posture board 6, see Fig.11 The posture adjustment plate 6 is V-shaped and fixedly installed at the bottom of the shell. A gap is formed between the posture adjustment plate 6 and the seed plate 5. The width of the gap is greater than the thickness of the Hami melon seeds and less than the width of the Hami melon seeds. As a result, the Hami melon seeds always enter the gap in a side posture and then slide into the conical groove 53. At this time, the side of the Hami melon seeds faces the suction hole 55, which is convenient for adsorbing the Hami melon seeds.

[0053] The seed box 1 is fixedly mounted on the front shell 2, and a seed delivery tube 12 is provided on the seed box 1. The seed delivery tube 12 passes through the front shell 2 and extends into the inside thereof.

[0054] In some embodiments, see Figure 5 The seed box 1 includes a box body 11, a seed delivery tube 12, and a connecting plate 13. A connecting plate 13 is provided at the bottom of the box body 11, and is fixedly installed on the side of the front shell body 2 through the connecting plate 13. A seed delivery tube 12 is also provided at the bottom of the box body 11. The seed delivery tube 12 passes through the front shell body 2 at the seed delivery hole 23 and then extends into the adsorption area.

[0055] Furthermore, a limiting sleeve 14 is obliquely arranged on the connecting plate 13, and the angle between the limiting sleeve 14 and the connecting plate 13 is 20° to 30°. Fig.13 A seed drop tube 4 is fixedly installed at the limiting sleeve 14, and the end of the seed drop tube 4 passes through the front housing 2 from the seed drop hole 22 and then extends into the seed drop area, and its end is close to the seed plate 5. Figure 4 When installing the device, it is necessary to keep the seed drop tube 4 vertical so as to maintain the posture of Hami melon seeds when being discharged. A notch 41 is provided at the end of the seed drop tube 4 to facilitate the passage of Hami melon seeds, thereby avoiding the problem of seeds being stuck when the seed plate 5 rotates.

[0056] Specific working process:

[0057] The device is installed obliquely on the sowing equipment, and the seed drop tube 4 is kept vertically downward during installation. Hami melon seeds are added into the box body 11. The seeds slide from the seed delivery tube 12 into the outer shell under the action of gravity; the seeds entering the outer shell fall on the posture adjustment plate 6 and continue to slide, and finally, under the action of the posture adjustment plate 6, slide from the gap between the posture adjustment plate 6 and the seed plate 5 to the conical groove 53 in a side posture; under the action of the external negative pressure device, negative pressure is generated at the suction hole 55, because flat seeds are easier to be adsorbed by the tip, because: in the adsorption flow, the pressure gradient field distributed outside the suction hole has a much greater impact on the seeds than the seeds themselves. As the seed attack angle increases, the seed tip gradually moves away from the suction hole and the core area of ​​the adsorption flow, and the coupling effect between the seed and the adsorption flow is weakened. Therefore, when the seed slides into the conical groove 53, affected by the adsorption force, one of the pointed ends of the seed is inserted into and adsorbed in the adsorption groove 54. At this time, the seed is vertically inserted into the adsorption groove 54, and the seed direction is consistent with the axial direction of the suction hole 55. Since the adsorption groove 54 can only accommodate a single seed, when there is a seed in the adsorption groove 54, the adsorption force on the remaining seeds in the shell is reduced, avoiding the simultaneous adsorption of multiple seeds in the same adsorption groove 54. As the seed plate 5 rotates, the seeds that are not inserted into the adsorption groove 54 will fall back to the bottom of the shell under the action of gravity due to the smaller adsorption force. At this time, there is only one seed in each adsorption groove 54. When the seed plate 5 rotates to the seed dropping area, the negative pressure disappears, and the seeds at the adsorption groove 54 fall vertically to the seed dropping tube 4 under the action of gravity. Since the air resistance on the pointed end of the Hami melon seed is relatively small, it will maintain a vertical posture during the falling process and finally insert into the soil, avoiding the bouncing of the seeds when they contact the soil due to the irregular seed dropping posture, which affects the uniformity of sowing.

[0058] It should be noted that since the air resistance on the pointed end of the Hami melon seed is relatively small, when the falling distance is high enough, the seeds can adjust their landing posture to a vertical posture under the action of air resistance. However, in actual production, the distance between the sowing equipment and the land is usually short, so that the seeds do not have enough time to adjust their landing posture. If the seed posture is not standardized when sowing, the side of the seed may land first, causing the seed to bounce, thereby affecting the uniformity of sowing.

[0059] Finally, it should be noted that, in this article, relationships 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 any such actual relationship or order between these entities or operations. Moreover, the terms include, include or any other variations are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0060] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A tilted and adjustable posture Hami melon seed air suction seed metering device, characterized in that: include A front housing (2) and a rear housing (3), wherein the front housing (2) and the rear housing (3) form an outer shell of the seed metering device when closed; A seeding disc (5), the seeding disc (5) being installed in the housing via a driving shaft (7), and a plurality of conical grooves (53) being evenly arranged along the circumference of the side of the seeding disc (5) facing the front housing (2), an elliptical adsorption groove (54) corresponding to the size of Hami melon seeds being arranged at the bottom of the conical groove (53), and a suction hole (55) penetrating the seeding disc (5) being opened at the bottom of the adsorption groove (54); A posture adjustment plate (6), wherein the posture adjustment plate (6) is fixedly mounted in the housing, and a gap is formed between the posture adjustment plate (6) and the seeding plate (5), wherein the width of the gap is greater than the thickness of the Hami melon seeds and less than the width of the Hami melon seeds, so that the Hami melon seeds always enter the gap in a side posture; A seed box (1), wherein the seed box (1) is mounted on the front housing (2), and a seed delivery tube (12) is provided on the seed box (1), and the seed delivery tube (12) passes through the front housing (2) and extends into the interior thereof; A sealed chamber is formed between the seeding disc (5) and the rear shell (3), and a partition (32) is provided on the rear shell (3) to divide the sealed chamber into an adsorption area and a seed dropping area. The adsorption area is provided with a negative pressure interface (33). By connecting the negative pressure interface (33) to an external negative pressure device, negative pressure can be formed at the suction hole (55), thereby adsorbing Hami melon seeds. The seed dropping area is provided with a seed dropping tube (4). As the seeding disc (5) rotates, when the suction hole (55) adsorbed with seeds rotates to the seed dropping area, the negative pressure disappears, and the seeds are discharged from the seed dropping tube (4).

2. The tilted and adjustable Hami melon seed air-suction seed metering device according to claim 1, characterized in that: The seeding disc (5) is provided with guide grooves (52) corresponding one to one with the tapered grooves (53), and the direction of the guide grooves (52) is consistent with the radial direction of the seeding disc (5).

3. The tilted and adjustable Hami melon seed air-suction seed metering device according to claim 1, characterized in that: The seeding disc (5) is in a bowl-shaped structure, with its concave side facing the front housing (2).

4. The tilted and adjustable Hami melon seed air-suction seed metering device according to claim 1, characterized in that: The seed box (1) comprises a box body (11), a seed delivery tube (12), and a connecting plate (13). The connecting plate (13) is arranged at the bottom of the box body (11) and is fixedly mounted on the side of the front shell body (2) through the connecting plate (13). The box body (11) is also provided with a seed delivery tube (12) at the bottom. The seed delivery tube (12) passes through the front shell body (2) and then extends into the adsorption area.

5. The tilted and adjustable Hami melon seed air-suction seed metering device according to claim 4 is characterized in that: A limiting sleeve (14) is also obliquely arranged on the connecting plate (13), and the angle between the limiting sleeve (14) and the connecting plate (13) is 20° to 30°.

6. The tilted and adjustable Hami melon seed air-suction seed metering device according to claim 5, characterized in that: A seed dropping tube (4) is fixedly installed at the limiting sleeve (14), and the end of the seed dropping tube (4) passes through the front shell (2) and extends into the seed dropping area. During installation, the seed dropping tube (4) needs to be kept vertical so as to maintain the posture of the Hami melon seeds when they are discharged.

7. The tilted and adjustable Hami melon seed air-suction seed metering device according to claim 6, characterized in that: The end of the seed dropping tube (4) is provided with a notch (41) for facilitating the passage of Hami tube seeds.

8. The tilted and adjustable Hami melon seed air-suction seed metering device according to claim 1, characterized in that: The front shell (2) is provided with a first connecting ear (24), and the rear shell (3) is provided with a second connecting ear (34) corresponding to the first connecting ear (24).

9. The tilted and adjustable Hami melon seed air-suction seed metering device according to claim 1, characterized in that: The bottom of the front shell (2) is respectively provided with a first support seat (25) and a first support leg (26), and the bottom of the rear shell (3) is provided with a second support seat (35) corresponding to the first support seat (25) and a second support leg (36) corresponding to the first support leg (26).

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