Vertical-seed-unloading double-seedling-belt precision seed-metering device

Abstract

The utility model relates to a vertical seed unloading double-seedling belt precision seed-metering device, which comprises a front shell, a bottom shell, a seed-metering disc and a seed unloading guard plate, the front shell is fixedly connected with the bottom shell, a mounting area is formed between the front shell and the bottom shell, the seed-metering disc and the seed unloading guard plate are arranged in the mounting area, the seed-metering disc is arranged above the bottom shell, and the seed unloading guard plate is arranged above the bottom shell. The seed unloading protection plate is arranged on the upper surface of the seed metering disc, and a seed filling area is formed between the front shell and the seed metering disc. According to the double-seedling-belt precision seed-metering device capable of vertically discharging seeds, by means of the matching relation of the seed-metering disc, the sealing ring and the seed discharging protection plate, double-row seeds are vertically discharged, the situation that the seeds are collided after being separated from the seed disc can be avoided, the consistency of sowing plant spacing is improved, and the operation speed is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of seeding devices, in particular to a vertical seed unloading double-seedling belt precision seeding device. Background Art

[0002] Double seedling belt sowing agronomy can significantly increase the yield of crops such as soybeans and corn. It has been widely promoted and applied in Northeast my country, Inner Mongolia and parts of the Central Plains, providing a reliable guarantee for my country's grain and oil security. Double seedling belt sowing agronomy requires that the distance between the two seedling belts is between 12-20cm, and the plant spacing is small, usually less than 12cm, which puts high demands on the performance of the seed meter.

[0003] In order to achieve this sowing agronomy, some seeder manufacturers use double units for sowing, but it is difficult to achieve the 12-20cm double seedling belt spacing requirement; other manufacturers use opposed seeders for sowing, but this increases the cost of the entire machine; the "one tray, two rows" type seeders are equipped with two rows of suction holes on the air-suction seed tray, and the two rows of seeds are transported separately. It has the advantages of high economy, convenient adjustment of the seedling belt spacing, and rapid switching between "single" and "double" seedling belt sowing. However, the "one tray, two rows" type seeders on the market mostly use oblique or staggered seed unloading methods. After the double-row seeds leave the seed tray, they collide severely, making it difficult to maintain the set plant spacing, and it is even impossible to achieve staggered distribution of seeds in the two seedling belts. Therefore, improvement is needed. Utility Model Content

[0004] In view of this, the utility model provides a vertical seed unloading double-seedling belt precision seed metering device.

[0005] Specifically, the utility model is realized by the following technical solutions:

[0006] According to the first aspect of the utility model, there is provided a vertical unloading double-seedling belt precision seeder, comprising: a front shell, a bottom shell, a seed tray and a seed unloading guard plate, wherein the front shell and the bottom shell are fastened to form a mounting area therebetween, the seed tray and the seed unloading guard plate are arranged in the mounting area, the seed tray is arranged above the bottom shell, the seed unloading guard plate is arranged on the upper surface of the seed tray, and a seed filling area is formed between the front shell and the seed tray.

[0007] Preferably, the seed unloading guard plate is provided with an outer guard plate and an inner guard plate.

[0008] Preferably, an outer seed transport channel is formed between the outer guard plate and the side wall of the bottom shell.

[0009] Preferably, an inner seed transport channel is formed between the inner guard plate and the outer guard plate.

[0010] Preferably, the seed disc is provided with outer suction holes and inner suction holes.

[0011] Preferably, the outer suction hole and the inner suction hole are staggered at a preset angle.

[0012] Preferably, the outer guard plate is arranged between the outer suction hole and the inner suction hole.

[0013] Preferably, it further comprises: a sealing ring, wherein the sealing ring is arranged in the installation area.

[0014] Preferably, the sealing ring is in close contact with the lower surface of the seed disc.

[0015] Preferably, a negative pressure air chamber is formed between the inner ring groove of the sealing ring and the seed disc.

[0016] The technical solution provided by the utility model brings at least the following beneficial effects:

[0017] The present application provides a vertical unloading double-seedling belt precision seeding device which realizes double-row vertical unloading of seeds by means of the cooperation relationship among a seeding tray, a sealing ring and a seed unloading guard plate, thereby avoiding collision of seeds after they leave the seed tray, improving the consistency of sowing plant spacing, and increasing the operation speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 A structural schematic diagram of a vertical unloading double-seedling belt precision seed metering device provided by an embodiment of the utility model;

[0021] Figure 2 A schematic diagram of the installation of a seed unloading guard plate in a vertical seed unloading double seedling belt precision seed metering device provided by an embodiment of the utility model;

[0022] Figure 3 A front view of a seed unloading guard plate in a vertical seed unloading double seedling belt precision seed metering device provided by an embodiment of the utility model;

[0023] Figure 4 A top view of a seed unloading guard plate in a vertical seed unloading double seedling belt precision seed metering device provided by an embodiment of the utility model;

[0024] Figure 5A schematic diagram of the installation of a sealing ring in a vertical unloading double seedling belt precision seed metering device provided by an embodiment of the utility model;

[0025] Figure 6 A schematic diagram of another embodiment of a seeding tray in a vertical seed unloading double seedling belt precision seeding device provided by the utility model;

[0026] Figure 7 A schematic diagram of another embodiment of a seed unloading guard plate in a vertical seed unloading double-seedling belt precision seeding device provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment 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] Figure 1-7 A vertical unloading double-seedling belt precision seed metering device is schematically shown.

[0029] Reference Figure 1 As shown, the present application provides a vertical unloading double-seedling belt precision seeder, comprising: a front shell 1, a bottom shell 2, a seed tray 3 and a seed unloading guard plate 4, wherein the front shell 1 and the bottom shell 2 are fastened to form an installation area therebetween, the seed tray 3 and the seed unloading guard plate 4 are arranged in the installation area, the seed tray 3 is arranged above the bottom shell 2, the seed unloading guard plate 4 is arranged on the upper surface of the seed tray 3, and a seed filling area is formed between the front shell 1 and the seed tray 3.

[0030] Specifically, an outer guard plate 41 and an inner guard plate 42 are arranged on the seed unloading guard plate 4, an outer seed delivery channel E is formed between the outer guard plate 41 and the side wall of the bottom shell 2, and an inner seed delivery channel F is formed between the inner guard plate 42 and the outer guard plate 41; an outer suction hole 31 and an inner suction hole 32 are arranged on the seeding disk 3, and the outer suction hole 31 and the inner suction hole 32 are staggered at a certain angle, and the angle can be selected and adjusted as needed; the outer guard plate 41 is installed between the outer suction hole 31 and the inner suction hole 32; the sealing ring 5 is tightly attached to the lower surface of the seeding disk 3; through the assembly relationship, a seed filling area A is formed between the bottom of the front shell 1 and the seeding disk 3, and the internal annular groove of the sealing ring 5 forms a negative pressure air chamber D with the seeding disk 3; B is the rotation direction of the seeding disk; C is the end position of the negative pressure air chamber, that is, the seed unloading position.

[0031] The working principle of the vertical seed unloading double seedling belt precision seeding device provided by the present application is as follows: the seeds accumulated in the seed filling area A are adsorbed on the outer suction holes 31 and the inner suction holes 32 of the seeding disk 3 under the adsorption action of the negative pressure chamber D, and rotate along with the seeding disk 3 in the rotation direction B, and then the seeds are transported to the seed unloading position C along with the seeding disk 3; after the seeds pass through the seed unloading position C, they leave the action area of ​​the negative pressure chamber D, and the seeds adsorbed by the outer suction holes 31 and the inner suction holes 32 on the seeding disk 3 lose the adsorption force successively, and alternately leave the seeding disk 3. Perpendicular to the ground surface, the seeds only have a downward speed perpendicular to the ground after leaving the seed plate 3, that is, vertical unloading is achieved; after unloading is completed, the unloading guard plate 4 further maintains the seed movement direction, and the inner and outer seeds are transported in the inner and outer channels respectively, avoiding the mixing of the two columns of seeds due to vibration, untimely unloading and other factors, and ensuring the original sequence of the seeds; because the outer suction holes 31 and the inner system 32 are staggered at a certain angle, there is a time difference between the seeds at the outer suction holes 31 and the inner suction holes 32 reaching the unloading position C, realizing the staggered distribution of seeds in the double seedling belts.

[0032] Optionally, other embodiments of the seeding disc and the seeding guard plate are as follows: Figure 6 , 7 shown. Figure 1 and Figure 6 The surface disturbance grooves of the seeding disc 3 are different in form. Figure 1 The seed tray 3 can be used for conventional seed sowing. Figure 6 The seed tray 3 is used for unconventional seeds, such as seeds of larger size; Figure 2 and Figure 7 The difference between the middle unloading guard plate 4 is Figure 7 The inner guard plate in the middle is shorter, and these two types of unloading guard plates 4 can meet the technical requirements of this solution.

[0033] The present application provides a vertical unloading double-seedling belt precision seeding device which realizes double-row vertical unloading of seeds by means of the cooperation relationship among a seeding tray, a sealing ring and a seed unloading guard plate, thereby avoiding collision of seeds after they leave the seed tray, improving the consistency of sowing plant spacing, and increasing the operation speed.

[0034] It should be noted that, in the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0035] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0036] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0038] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A vertical unloading double seedling belt precision seed metering device, characterized in that: include: A front shell, a bottom shell, a seed tray and a seed unloading guard plate, wherein the front shell and the bottom shell are fastened to form a mounting area therebetween, the seed tray and the seed unloading guard plate are arranged in the mounting area, the seed tray is arranged above the bottom shell, the seed unloading guard plate is arranged on the upper surface of the seed tray, and a seed filling area is formed between the front shell and the seed tray.

2. The vertical unloading double seedling belt precision seed metering device according to claim 1 is characterized in that: The seed unloading guard plate is provided with an outer guard plate and an inner guard plate.

3. The vertical unloading double seedling belt precision seed metering device according to claim 2 is characterized in that: An outer seed transport channel is formed between the outer guard plate and the side wall of the bottom shell.

4. The vertical unloading double seedling belt precision seed metering device according to claim 2, characterized in that: An inner seed transport channel is formed between the inner guard plate and the outer guard plate.

5. The vertical unloading double seedling belt precision seed metering device according to claim 2, characterized in that: The seeding disc is provided with an outer suction hole and an inner suction hole.

6. The vertical unloading double seedling belt precision seed metering device according to claim 5, characterized in that: The outer suction hole and the inner suction hole are staggered at a preset angle.

7. The vertical unloading double seedling belt precision seed metering device according to claim 5, characterized in that: The outer guard plate is arranged between the outer suction hole and the inner suction hole.

8. The vertical unloading double seedling belt precision seed metering device according to claim 1, characterized in that: Also includes: A sealing ring is arranged in the installation area.

9. The vertical unloading double seedling belt precision seed metering device according to claim 8, characterized in that: The sealing ring is in close contact with the lower surface of the seeding disc.

10. The vertical unloading double seedling belt precision seed metering device according to claim 8, characterized in that: A negative pressure air chamber is formed between the inner annular groove of the sealing ring and the seeding disc.

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