Seeding depth adjusting structure of no-tillage planter

Abstract

The utility model discloses a seeding depth adjusting structure of a no-tillage planter. The seeding depth adjusting structure comprises a single body rack, a land wheel connecting piece, a land wheel assembly and a depth adjusting piece, the land wheel assembly is hinged to the lower portion of the land wheel connecting piece and rotates relative to the hinged position. The upper portion of the land wheel connecting piece is hinged to the single machine frame. The two ends of the depth adjusting piece are hinged to the hinge position I of the single machine frame and the hinge position II of the land wheel connecting piece respectively, at least two adjusting hinge holes are formed in the hinge position I of the single machine frame or the hinge position II of the land wheel connecting piece, certain pressure is kept between the land wheel and the ground all the time, it is guaranteed that soil on the surface layers of seeds is compacted all the time, and therefore the soil quality is improved. The soil covering depth of the surface layer of the seeds is ensured to be stable, so that favorable conditions are provided for seed germination, the seedling emergence of the seeds is ensured, the crop yield is increased, the user income is increased, and high market value and popularization value are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of agricultural machinery, and particularly relates to a sowing depth adjusting structure of a no-tillage seeder. BACKGROUND

[0002] With the popularization of the protective tillage technology, the structure of the no-tillage seeder is more and more, and the technology is more and more mature, and the depth adjusting structure of the seeder plays a crucial role in the operation effect of the seeder, and the quality of the sowing depth adjusting structure directly affects the quality of the sowing quality and the quality of the later emergence.

[0003] Most of the traditional depth adjusting structures adopt depth springs or adopt the structure of a lead screw to adjust the depth, and the depth of the depth adjusting structure under the structure changes greatly, and the depth is unstable, which directly affects the consistency of the emergence.

[0004] And with the rush harvesting and rush seeding during the busy farming season, sometimes when ploughing, in order to rush the sowing, most of the cases are sowing on the relatively soft land after the rain, at this time, the ground surface is relatively soft and sticky, and after the ground wheel is pressed, the ground wheel is easy to be muddy and blocked, and the ground wheel is easy to take away the soil on the surface of the seed and drag the heap, causing the seed drying phenomenon, and then not emerging, causing the yield reduction and loss. The traditional solution is to install a mud scraping plate on the ground wheel, but at the same time, the resistance of the ground wheel rotation is increased, the slip rate is increased, and the planting plant distance is affected. UTILITARIAN CONTENT

[0005] The utility model provides a sowing depth adjusting structure of a no-tillage seeder, the position of the depth adjusting part and the different position adjusting hinged holes are switched, the depth is adjusted, and the problem of the traditional adjusting floating depth instability is solved.

[0006] The utility model adopts the technical scheme that:

[0007] A sowing depth adjusting structure of a no-tillage seeder, comprising a single machine frame, a ground wheel connecting piece, a ground wheel assembly and a depth adjusting piece, the ground wheel assembly is hinged at the lower part of the ground wheel connecting piece and rotates relative to the hinge, the upper part of the ground wheel connecting piece is hinged on the single machine frame, the two ends of the depth adjusting piece are respectively hinged on the hinge position I of the single machine frame and the hinge position II of the ground wheel connecting piece, and at least two adjusting hinged holes are arranged at the hinge position I of the single machine frame or the hinge position II of the ground wheel connecting piece. Different adjusting hinged holes and the assembly of the depth adjusting piece are directly used to realize the adjustment of the different heights of the ground wheel, and the change of the sowing depth is realized.

[0008] As a preferred scheme of the utility model, the adjustment hinge holes of adjacent ones are not on a straight line and have a height difference. Due to the hinge rotation of the ground wheel connecting piece and the single machine frame, the adjustment hinge holes cannot be adjusted on the same vertical straight line to realize height adjustment.

[0009] As a preferred scheme of the utility model, the adjustment hinge holes are multiple, at least two levels are presented, and the same level has at least two adjustment hinge holes. The multiple levels can realize adjustment of more height ranges, so as to adjust the seeding depth according to the actual seeding terrain.

[0010] As a preferred scheme of the utility model, the adjustment hinge holes of the same level are on the same arc. Since the rotation center axis of the ground wheel connecting piece is at the hinge of the single machine frame, in order to realize the same height difference for each adjustment, the adjustment hinge holes of the same level are on the same arc.

[0011] As a preferred scheme of the utility model, in the adjacent two levels, the height difference between the highest adjustment hinge hole in the lower level and the lowest adjustment hinge hole in the higher level is the same as the height difference between the adjacent adjustment hinge holes in the same level. The scheme can realize step-by-step adjustment of each level with the same height difference.

[0012] As a preferred scheme of the utility model, the ground wheel connecting pieces are oppositely arranged, and the ground wheel assembly and the depth adjusting piece are arranged between the two ground wheel connecting pieces.

[0013] As a preferred scheme of the utility model, the depth adjusting piece is in an I-shaped structure. The I-shaped structure has better stability.

[0014] As a preferred scheme of the utility model, the ground wheel connecting piece is provided with a wear-resistant sleeve at the hinge with the single machine frame. The wear-resistant sleeve can prolong the service life of the single machine frame and avoid locking of the ground wheel connecting piece.

[0015] As a preferred scheme of the utility model, the ground wheel assembly comprises a rubber ground wheel, a mounting shaft, a bearing and a bearing seat, and the rubber ground wheel is hingedly connected to the lower part of the ground wheel connecting piece through the mounting shaft, the bearing and the bearing seat. The middle position of the rubber ground wheel in contact with the ground is elastic, and the outer end surface is extruded and stained with mud after walking in the muddy ground, but the mud can be shaken off under the action of the elastic restoring force during walking, so that the problem of mud and mud clamping of the ground wheel can be solved.

[0016] As a preferred scheme of the utility model, the rubber ground wheel is a semi-vacuum rubber wheel, and the end surface in contact with the ground has a contraction and elastic space.

[0017] The utility model uses the depth adjusting spare of pin shaft connection in the different adjustment hinged hole place to realize the change of the wheel connecting piece position, the different inclination degree of wheel connecting piece can bring the different height of the wheel distance ground, further realizes the adjustment of sowing depth, the wheel connecting piece and depth adjusting spare is rigid connection after position adjustment, there is no elastic space, this makes the wheel not to exist the condition that depth changes and floats greatly, and the wheel adopts half vacuum rubber wheel, the mud that sticks is naturally bounced in the walking process by the elastic restoring force of rubber wheel, reduces the probability that the wheel is blocked mud. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, below will to the drawing needed to be used in the embodiment or prior art description simple introduction, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art comes, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0019] Figure 1 It is the structural schematic diagram of the utility model.

[0020] Figure 2 It is the structural schematic diagram of the utility model single rack.

[0021] Figure 3 It is the structural schematic diagram of the utility model wheel connecting piece.

[0022] Figure 4 It is the structural schematic diagram of the utility model depth adjusting spare. DETAILED DESCRIPTION

[0023] Below, combining the drawing in the embodiment of the utility model, the technical scheme in the embodiment of the utility model is clearly and completely described, obviously, the described embodiment only is a part of the embodiment of the utility model, instead of all the embodiment.Based on the embodiment in the utility model, all other embodiments obtained by ordinary skilled person in the art without paying creative labor belong to the range of protection of the utility model.

[0024] Embodiment:

[0025] A no-tillage seeding machine sowing depth adjusting structure, as shown in Figure 1 It includes single rack 1, wheel connecting piece 2, wheel assembly 3 and depth adjusting spare 4.

[0026] The ground wheel assembly 3 comprises rubber ground wheels 31, mounting shafts, bearings and bearing seats, the rubber ground wheels are hinged to the lower part of the ground wheel connecting piece 2 through the mounting shafts, bearings and bearing seats, and the rubber ground wheels use semi-vacuum rubber wheels. The middle position of the rubber ground wheels in contact with the ground is elastic, the end surface in contact with the ground has a contraction elastic space, the outer end surface is pressed and contaminated with mud after walking in the muddy ground, but the elastic recovery force can restore the original state and shake off the mud during walking, which can solve the problem of mud and mud clamping of the ground wheels.

[0027] In the embodiment, the single machine frame uses two pieces of the same structure connected together, as shown in Figure 2 The ground wheel connecting piece 2 also uses two pieces of the same structure, as shown in Figure 3 The upper part of the ground wheel connecting piece 2 is hinged to the single machine frame 1 through a rotating shaft, and from Figure 1 It can be seen that the ground wheel connecting piece is located on the outer side of the single machine frame; and the ground wheel connecting piece 2 is provided with a wear-resistant sleeve at the hinge with the single machine frame 1. The setting of the wear-resistant sleeve can enhance the service life of the single machine frame and avoid the ground wheel connecting piece being locked and unable to rotate relative to the single machine frame.

[0028] The depth adjusting piece 4 uses an I-shaped structure, as shown in Figure 4 The two ends of the depth adjusting piece 4 are respectively hinged to the hinge position I of the single machine frame 1 and the hinge position II of the ground wheel connecting piece 2 through pin shafts, and at least two adjusting hinge holes 11 are arranged at the hinge position I of the single machine frame 1, as long as the height adjustment can be realized, or at least two adjusting hinge holes can be arranged at the hinge position II of the ground wheel connecting piece 2.

[0029] The assembly of different adjusting hinge holes and depth adjusting pieces realizes the adjustment of different heights of the ground wheels, and further realizes the change of the seeding depth.

[0030] In the embodiment, in order to realize the adjustment of multiple height values, the adjusting hinge holes are arranged in multiple, and the adjusting hinge holes are at least in two layers, the same layer has at least two adjusting hinge holes, and because the rotating center axis of the ground wheel connecting piece is at the hinge position of the single machine frame, in order to realize the same height difference of each adjustment, the adjusting hinge holes in the same layer are on the same circular arc. In the same layer, the adjacent adjusting hinge holes are not on a straight line and have a height difference. Because of the hinge rotation of the ground wheel connecting piece and the single machine frame, the adjusting hinge holes cannot be adjusted on the same vertical straight line to realize the height adjustment.

[0031] In the adjacent two layers, the height difference between the highest adjusting hinge hole in the lower layer and the lowest adjusting hinge hole in the higher layer is the same as the height difference between the adjacent adjusting hinge holes in the same layer. The setting of the scheme can realize the step-by-step adjustment of the same height difference of each adjustment according to the layers.

[0032] This embodiment is demonstrated by taking four levels as an example. Figure 2 As shown, the bottom level is the first level 5, and there are three adjustment hinge holes 11 on the same arc of the first level, the second level 6 has four adjustment hinge holes, the third level 7 has three adjustment hinge holes, and the fourth level 8 has four adjustment hinge holes; Figure 2 Taking the direction shown as an example, the height of the ground wheel connector corresponding to the adjustable hinge holes in the first layer increases gradually from right to left; that is, the height difference between adjacent adjustable hinge holes is 1 cm. The height difference between the leftmost adjustable hinge hole in the first layer and the rightmost adjustable hinge hole in the second layer is also 1 cm. Similarly, the height difference between the leftmost adjustable hinge hole in the second layer and the rightmost adjustable hinge hole in the third layer, and the height difference between the leftmost adjustable hinge hole in the third layer and the rightmost adjustable hinge hole in the fourth layer are also 1 cm. The height difference is set according to actual conditions and is not limited to 1 cm as specified in this application.

[0033] In this embodiment, the ground wheel connector 2 is made of 28MnB5 material by hot pressing, and its hardness can reach HRC38~43 after heat treatment, which greatly improves the strength of the structural parts, reduces the number of parts, and reduces costs.

[0034] When the depth needs to be changed, just change the position of the adjustment hinge hole on which the depth adjustment piece is assembled. After the height is adjusted appropriately, use pins to fix the depth adjustment piece and the adjustment hinge hole to achieve a hard connection between the depth adjustment piece and the single frame. The advantage of this method is that a certain pressure is always maintained between the ground wheel and the ground, ensuring that the soil on the surface of the seed is always compacted to a certain extent, thereby ensuring the germination rate.

[0035] The utility model mainly ensures the stability of the soil covering depth of the seed surface, thereby providing favorable conditions for seed germination, ensuring seed emergence, thereby increasing crop yield, increasing user benefits, and having high market value and promotion value.

[0036] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0037] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A no-till planter seed depth adjustment structure, characterized by: The single frame (1), the ground wheel connecting piece (2), the ground wheel assembly (3) and the depth adjusting piece (4); the ground wheel assembly (3) is hinged at the lower part of the ground wheel connecting piece (2) and rotates relative to the hinge; the upper part of the ground wheel connecting piece (2) is hinged on the single frame (1); the two ends of the depth adjusting piece (4) are respectively hinged on the hinge position I of the single frame (1) and the hinge position II of the ground wheel connecting piece (2), and at least two adjusting hinge holes are arranged at the hinge position I of the single frame (1) or the hinge position II of the ground wheel connecting piece (2); The adjusting hinge hole presents at least two levels, and the same level has at least two adjusting hinge holes; The adjusting hinge holes of the same level are on the same circular arc; In the adjacent two levels, the height difference between the highest adjusting hinge hole in the lower level and the lowest adjusting hinge hole in the higher level is the same as the height difference between the adjacent adjusting hinge holes in the same level; The ground wheel assembly (3) comprises a rubber ground wheel (31), which is a semi-vacuum rubber wheel, and the middle position of the rubber ground wheel in contact with the ground is elastic.

2. The no-till planter seed depth adjustment structure of claim 1, wherein: The adjacent adjusting hinge holes are not in a straight line and have a height difference.

3. The no-till planter seed depth adjustment structure of any of claims 1-2, wherein: The ground wheel connecting piece (2) is relatively arranged in two, and the ground wheel assembly (3) and the depth adjusting piece (4) are arranged between the two ground wheel connecting pieces.

4. The no-till planter seed depth adjustment structure of claim 3, wherein: The depth adjusting piece (4) is in an I-shaped structure.

5. The no-till planter seed depth adjustment structure of claim 3, wherein: The ground wheel connecting piece (2) is provided with a wear-resistant sleeve at the hinge position with the single frame (1).

6. The no-till planter seed depth adjustment structure of claim 3, wherein: The ground wheel assembly (3) comprises a mounting shaft, a bearing and a bearing seat, and the rubber ground wheel is hinged to the lower part of the ground wheel connecting piece (2) through the mounting shaft, the bearing and the bearing seat.

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