Depth limiting wheel, seeding mechanism and seeding equipment

Abstract

The utility model discloses a depth limiting wheel, a seeding mechanism and seeding equipment, and relates to the technical field of seeding, the depth limiting wheel comprises a hub and a tire, and the tire is sleeved on the outer side of the hub; the sealing pieces are arranged between the first end of the hub and the first end of the tire and between the second end of the hub and the second end of the tire; according to the utility model, the sealing element is arranged between the hub and the tire and prevents impurities such as soil and stones from entering the depth wheel from the gap between the hub and the tire, so that the problem that the inner wall of the tire is abraded due to the impurities entering the depth wheel is avoided, and the problem that the overall weight of the depth wheel is increased due to the impurities entering the depth wheel is also avoided; the advancing and rotating resistance is increased, and the working efficiency is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sowing, in particular to a depth limiting wheel, a sowing mechanism and a sowing device. Background Art

[0002] In the prior art, when the depth limiting wheel is in operation, due to the gap between the wheel hub and the tire, dirt, stones and other debris will enter the depth limiting wheel through the gap between the wheel hub and the tire, causing wear of the tire, increasing the resistance to the rotation of the depth limiting wheel, and reducing the working efficiency of the depth limiting wheel.

[0003] Therefore, how to prevent dirt, gravel and other debris from entering the depth limiting wheel, avoid wear of the depth limiting wheel, and prevent debris from increasing the rotation resistance of the depth limiting wheel has become a technical problem that technical personnel in this field need to solve urgently. Utility Model Content

[0004] The purpose of the utility model is to provide a depth limiting wheel, a sowing mechanism and a sowing equipment to solve the problems existing in the above-mentioned prior art, to prevent dirt, stones and other debris from entering the depth limiting wheel during the operation of the depth limiting wheel, thereby avoiding the wear of the tire interior by the debris and ensuring the working efficiency of the depth limiting wheel.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] The utility model provides a depth limiting wheel, comprising:

[0007] A wheel hub and a tire, wherein the tire is sleeved on the outer side of the wheel hub;

[0008] A sealing member is provided between the first end of the wheel hub and the first end of the tire, and between the second end of the wheel hub and the second end of the tire.

[0009] Preferably, the tire is cylindrical, and has a first cavity opened along the axial direction of the tire.

[0010] Preferably, the seal includes a first flange, and the first end of the tire and the second end of the tire are both provided with the first flange, the first flange extends toward the inner side of the tire, the first flange is annular, and the inner diameter of the first flange is smaller than the diameter of the wheel hub.

[0011] Preferably, the seal also includes a second flange, a first end of the second flange is connected to the first flange, an extension direction of the second flange is arranged parallel to the axial direction of the tire, and the first flange, the second flange and the inner wall of the tire together form the first cavity.

[0012] Preferably, the depth limiting wheel further comprises a cover plate, two cover plates are respectively arranged at two ends of the tire, and the cover plates are in contact with the ends of the tire.

[0013] Preferably, a plurality of grooves are provided along the circumference of the cover plate on a side away from the tire, and the grooves are recessed toward the tire;

[0014] And / or, the depth limiting wheel further comprises a fixing plate, the fixing plate is located on a side of the cover plate away from the tire, and the fixing plate is provided with a through hole for the wheel axle to pass through;

[0015] And / or, the sealing member comprises a third flange, the first end of the wheel hub and the second end of the wheel hub are both provided with the third flange, the third flange extends toward the outer side of the wheel hub, the third flange is annular, and the diameter of the third flange is not less than the inner diameter of the tire;

[0016] And / or, the wheel hub is cylindrical, and has a second cavity inside the wheel hub, and the second cavity is opened along the axial direction of the wheel hub.

[0017] Preferably, the diameter of the tire is 240 mm to 270 mm.

[0018] Preferably, the tire has a diameter of 255 mm.

[0019] Furthermore, the utility model provides a sowing mechanism, which includes the depth limiting wheel.

[0020] In addition, the utility model also provides a sowing device, the sowing device comprises the depth limiting wheel;

[0021] Alternatively, the sowing equipment includes the sowing mechanism.

[0022] Compared with the prior art, the utility model has achieved the following technical effects:

[0023] The utility model provides a seal between the wheel hub and the tire, and blocks dirt, stones and other debris from entering the depth limiting wheel through the gap between the wheel hub and the tire through the seal. This not only avoids the problem of debris entering the depth limiting wheel and causing wear on the inner wall of the tire, but also avoids the problem of debris entering the depth limiting wheel and causing the overall weight of the depth limiting wheel to increase, the forward and rotational resistance to increase, and the operating efficiency to decrease. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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 will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 This is an exploded view of the depth-limited wheel;

[0026] Figure 2 It is a structural schematic diagram of the depth limiting wheel;

[0027] Figure 3 is a schematic diagram of the structure of a tire;

[0028] Figure 4 is a schematic cross-sectional view of a tire;

[0029] Figure 5 is a schematic diagram of the structure of the wheel hub;

[0030] Figure 6 is a schematic cross-sectional view of a wheel hub;

[0031] Figure 7 is a schematic diagram of the structure of the cover plate;

[0032] Figure 8 is a structural schematic diagram of a fixed plate;

[0033] Among them, 1. wheel hub; 2. tire; 3. first flange; 4. second flange; 5. cover plate; 6. groove; 7. fixing plate; 8. through hole; 9. first cavity; 10. second cavity. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in 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 in 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.

[0035] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0036] like Figures 1 to 8 As shown, the utility model provides a depth-limiting wheel, including a wheel hub 1 and a tire 2, wherein the tire 2 is sleeved on the outer side of the wheel hub 1; a sealing member is provided between the first end of the wheel hub 1 and the first end of the tire 2, and between the second end of the wheel hub 1 and the second end of the tire 2.

[0037] The utility model provides a seal between the wheel hub 1 and the tire 2, and blocks dirt, stones and other debris from entering the depth limiting wheel through the gap between the wheel hub 1 and the tire 2 through the seal. This not only avoids the problem of debris entering the depth limiting wheel and causing wear on the inner wall of the tire 2, but also avoids the problem of debris entering the depth limiting wheel, causing the overall weight of the depth limiting wheel to increase, the forward and rotational resistance to increase, and the operating efficiency to decrease.

[0038] The seal plays a role in preventing dust, filling the gap between the wheel hub 1 and the tire 2, and isolating foreign matter from entering the gap between the wheel hub 1 and the tire 2. The seal can be integrated with the tire 2 or the wheel hub 1, or separately from the tire 2 and the wheel hub 1, depending on the actual working conditions and manufacturing costs.

[0039] In order to further ensure the sealing between the wheel hub 1 and the tire 2, the outer wall of the wheel hub 1 in the utility model fits with the inner wall of the tire 2, thereby reducing or even eliminating the gap between the tire 2 and the wheel hub 1; however, it is necessary to ensure that there is space between the tire 2 and the wheel hub 1 for setting a seal.

[0040] like Figure 1 , Figure 3-Figure 4 As shown, the tire 2 in the utility model is cylindrical, and the tire 2 has a first cavity 9 opened along the axial direction of the tire 2. The provision of the first cavity 9 makes the tire 2 a hollow structure, which reduces the weight of the tire 2 and reduces the manufacturing cost of the tire 2. At the same time, when the depth-limiting wheel in the utility model is applied to a seed drill, the lighter tire 2 makes the gravity of the depth-limiting wheel lower and the inertia during operation smaller, which is conducive to improving the dynamic response performance of the seed drill and improving the efficiency of the seed drill. At this time, because the tire 2 is not yet provided with the first flange 3 and the second flange 4, the first cavity 9 is the inner cavity of the tire 2.

[0041] The sealing member in the utility model has various forms. Figure 4 As shown, the seal includes a first flange 3, and the first end of the tire 2 and the second end of the tire 2 are both provided with a first flange 3, the first flange 3 extends toward the inner side of the tire 2, the first flange 3 is annular, and the inner diameter of the first flange 3 is smaller than the diameter of the wheel hub 1.

[0042] Because the first flange 3 extends toward the inside of the tire 2 and in the radial direction of the tire 2, and the inner diameter of the first flange 3 is smaller than the diameter of the wheel hub 1, when the tire 2 is arranged on the outer shell of the wheel hub 1, the two first flanges 3 respectively block the two ends of the annular gap between the wheel hub 1 and the tire 2, thereby preventing dust, stones and other foreign debris from entering between the wheel hub 1 and the tire 2, and preventing foreign debris from wearing the tire 2 and the wheel hub 1, and increasing the weight of the depth limiting wheel, resulting in low working efficiency of the depth limiting wheel.

[0043] Furthermore, the seal in the utility model also includes a second flange 4, the first end of the second flange 4 is connected to the first flange 3, the extension direction of the second flange 4 is arranged parallel to the axial direction of the tire 2, and the first flange 3, the second flange 4 and the inner wall of the tire 2 jointly form a first cavity 9.

[0044] The first flange 3, the second flange 4 and the inner wall of the tire 2 together form a first cavity 9, and the distance between the second flange 4 and the inner wall of the tire 2 matches the thickness of the wheel hub 1. The wheel hub 1 can be smoothly placed in the first cavity 9 and fit with the first flange 3, the second flange 4 and the inner wall of the tire 2. In this way, the first flange 3 blocks the end of the annular gap between the wheel hub 1 and the tire 2, and the wheel hub 1, the tire 2 and the second flange 4 block the side of the annular gap between the tire 2 and the wheel hub 1, thereby achieving a comprehensive blocking of the annular gap between the tire 2 and the wheel hub 1, so that dust, stones and other external debris cannot enter the annular gap between the tire 2 and the wheel hub 1, and cannot cause wear to the tire 2 and the wheel hub 1, nor will it increase the weight of the depth limiting wheel and reduce the working efficiency of the depth limiting wheel.

[0045] like Figure 1-Figure 2 , Figure 7 As shown, the depth-limiting wheel further includes a cover plate 5, and two cover plates 5 are respectively arranged at both ends of the tire 2, and the cover plates 5 fit with the ends of the tire 2. The ends of the tire 2 and the wheel hub 1 are further sealed by the cover plates 5, thereby further improving the sealing between the tire 2 and the wheel hub 1. The cover plate 5 fits with the ends of the tire 2, which means that the cover plate 5 matches with the ends of the tire 2 and can be stably buckled on the ends of the tire 2. As shown in the figure, a protrusion matching with the first flange 3 is provided on the side of the cover plate 5 facing the first flange 3, and the cover plate 5 matches with the inner ring of the first flange 3 through the protrusion, so that the cover plate 5 and the tire 2 are aligned, and the cover plate 5 seals the tire 2 more tightly.

[0046] like Figure 1 , Figure 7 As shown, in the utility model, a plurality of grooves 6 are provided along the circumference of the cover plate 5 on the side away from the tire 2, and the grooves 6 are recessed toward the tire 2; this increases the surface area of ​​the cover plate 5, making it easier for the cover plate 5 to dissipate heat when the depth-limiting wheel is operating at high temperatures. At the same time, the provision of the grooves 6 effectively disperses the stress on the cover plate 5, making the cover plate 5 less susceptible to damage. When the depth-limiting wheel is applied to a seed drill, a through hole is also provided on the cover plate 5 for the wheel axle of the seed drill to pass through.

[0047] And / or, the depth limiting wheel also includes a fixing plate 7, which is located on the side of the cover plate 5 away from the tire 2, and is provided with a through hole 8 for the wheel axle to pass through; when the depth limiting wheel in the utility model is applied to a seed drill, the tire 2, the wheel hub 1 and the cover plate 5 can be fixed on the wheel axle of the seed drill through the fixing plate 7.

[0048] And / or, the seal includes a third flange, and the first end of the wheel hub 1 and the second end of the wheel hub 1 are both provided with a third flange, the third flange extends toward the outside of the wheel hub 1, the third flange is in a circular ring shape, and the diameter of the third flange is not less than the inner diameter of the tire 2; the two third flanges respectively seal the two ends of the annular gap between the wheel hub 1 and the tire 2 to prevent external debris from entering.

[0049] And / or, if Figure 1-Figure 2 , Figure 5-Figure 6 As shown, the wheel hub 1 is cylindrical, and has a second cavity 10 in the wheel hub 1, and the second cavity 10 is opened along the axial direction of the wheel hub 1. When the depth limiting wheel in the utility model is applied to a planter and other equipment, the second cavity is used for the wheel axle of the planter to pass through.

[0050] And / or means that the text contents before and after and / or may exist at the same time or only the text content before or only the text content after may exist.

[0051] It should be noted that the first flange 3 in the present invention can be integrally arranged with the tire 2, for example, the first flange 3 is integrally formed with the tire 2, and the first flange 3 is extended from the tire 2, or the first flange 3 can be separately arranged with the wheel hub 1, for example, the first flange 3 is fixed to the tire 2 by welding or the like; similarly, the third flange can be integrally arranged with the wheel hub 1, for example, the third flange is integrally formed with the wheel hub 1, and the third flange is extended from the wheel hub 1, or the third flange can be separately arranged with the wheel hub 1, for example, the third flange is fixed to the wheel hub 1 by welding or the like.

[0052] The diameter of the tire 2 in the utility model is 240mm-270mm. Compared with the diameter of the traditional depth-limiting wheel, the diameter of the tire 2 in the utility model is 240mm-270mm, which increases the diameter of the depth-limiting wheel, so that the depth-limiting wheel has a larger weight and inertia, can compact the soil and push it to both sides, so that the depth-limiting wheel will not accumulate soil in front of the depth-limiting wheel when working, avoiding the problem that due to the small diameter of the depth-limiting wheel, as the depth-limiting wheel continues to work, more and more soil accumulates in front of the depth-limiting wheel, resulting in greater working resistance of the depth-limiting wheel and reduced working efficiency.

[0053] Furthermore, in the utility model, the diameter of the tire 2 is 255 mm, which significantly improves the ability of the depth limiting wheel to push the soil to both sides.

[0054] It should be noted that the depth limiting wheel in the present invention is not limited to the front depth limiting wheel, but can also be used as a structure having a depth limiting function in other positions such as the rear depth limiting wheel.

[0055] Furthermore, the utility model provides a sowing mechanism, which includes a depth-limiting wheel. The sowing mechanism can be applied to a seeder, or other equipment with a sowing function that requires a sowing mechanism.

[0056] In addition, the utility model also provides a sowing device, the sowing device includes a depth-limiting wheel; or the sowing device includes a sowing mechanism. The sowing device can be a corn sowing machine, a soybean sowing machine, a wheat sowing machine, or other types of sowing machines, but the sowing device referred to in the utility model is not only a structure named as a sowing device, but also covers a structure that has a sowing function but is not called a sowing device.

[0057] In addition, it should be noted that although there is a logical relationship between the dependent claims, between the independent claims, and between the dependent claims and the independent claims in the present utility model, each independent claim and dependent claim is a technical solution, so there is no so-called opposite technical revelation between the dependent claims, between the independent claims, and between the dependent claims and the independent claims.

[0058] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A depth-limiting wheel, characterized in that: include: A wheel hub and a tire, wherein the tire is sleeved on the outer side of the wheel hub; A sealing member is provided between the first end of the wheel hub and the first end of the tire, and between the second end of the wheel hub and the second end of the tire.

2. The depth-limiting wheel according to claim 1, characterized in that: The tire is cylindrical and has a first cavity opened along the axial direction of the tire.

3. The depth-limiting wheel according to claim 2, characterized in that: The seal comprises a first flange, and the first end of the tire and the second end of the tire are both provided with the first flange, the first flange extends toward the inner side of the tire, the first flange is in a circular ring shape, and the inner diameter of the first flange is smaller than the diameter of the wheel hub.

4. The depth-limiting wheel according to claim 3, characterized in that: The seal also includes a second flange, a first end of the second flange is connected to the first flange, an extension direction of the second flange is arranged parallel to the axial direction of the tire, and the first flange, the second flange and the inner wall of the tire together form the first cavity.

5. The depth-limiting wheel according to claim 2, characterized in that: The depth limiting wheel also includes a cover plate, and two cover plates are respectively arranged at two ends of the tire, and the cover plates are in contact with the ends of the tire.

6. The depth-limiting wheel according to claim 5, characterized in that: A plurality of grooves are provided on one side of the cover plate away from the tire along the circumference of the cover plate, and the grooves are recessed toward the tire; And / or, the depth limiting wheel further comprises a fixing plate, the fixing plate is located on a side of the cover plate away from the tire, and the fixing plate is provided with a through hole for the wheel axle to pass through; And / or, the sealing member comprises a third flange, the first end of the wheel hub and the second end of the wheel hub are both provided with the third flange, the third flange extends toward the outer side of the wheel hub, the third flange is annular, and the diameter of the third flange is not less than the inner diameter of the tire; And / or, the wheel hub is cylindrical, and has a second cavity inside the wheel hub, and the second cavity is opened along the axial direction of the wheel hub.

7. The depth-limiting wheel according to claim 1, characterized in that: The diameter of the tire is 240 mm to 270 mm.

8. The depth-limiting wheel according to claim 7, characterized in that: The diameter of the tire is 255 mm.

9. A sowing mechanism, characterized in that: The sowing mechanism comprises the depth limiting wheel according to any one of claims 1-8.

10. A sowing device, characterized in that: The sowing device comprises a depth-limiting wheel as claimed in any one of claims 1 to 8; Alternatively, the sowing equipment includes the sowing mechanism described in claim 9.

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