Depth wheel of seeder

Abstract

The depth wheel comprises a hub and a tire, the hub comprises two spoke plates which are connected in a detachable mode, the edges of the spoke plates are connected with a groove bottom plate, the edge of the groove bottom plate is connected with a tire bead seat, the inner side of the groove bottom plate is provided with a fixing groove formed in the circumferential direction of the groove bottom plate, and the depth wheel further comprises a protection plate. The edge of the protection plate is connected with an elastic piece, the elastic piece is connected with a fixing protrusion capable of being matched with the fixing groove, the inner side of the protection plate is connected with a fixing bolt installation plate, the fixing bolt installation plate is in threaded connection with a fixing bolt capable of abutting against the elastic piece, and the protection plate is provided with an operation hole corresponding to the fixing bolt. And a plug is detachably mounted in the operation hole. The protection plates are located on the two sides of the hub and used for sealing the inner space of the hub, the risk that soil, straw and other sundries enter the hub during operation is reduced, and the safety of equipment operation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, and specifically, to a depth-limiting wheel of a seeder. Background Art

[0002] During the operation, the depth-limiting wheel is extremely likely to adhere to sundries such as soil and straw, affecting the normal use. The existing depth-limiting mechanism of the seeder includes a depth-limiting wheel and a scraper, and the scraper is used to scrape the sundries on the surface of the depth-limiting wheel.

[0003] The above technical solution has the following disadvantages: The existing depth-limiting wheel uses an ordinary wheel. During the operation, not only is the surface likely to adhere to sundries, but sundries such as soil and straw will also enter the inside of the wheel hub, affecting the normal use. The cleaning components such as the scraper are designed for the surface of the depth-limiting wheel and cannot remove the sundries inside the wheel hub. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a depth-limiting wheel of a seeder for the above problems, reducing the risk of sundries such as soil and straw entering the inside of the wheel hub during the operation.

[0005] To achieve the above purpose, the utility model discloses a depth-limiting wheel of a seeder, which includes a wheel hub and a tire. The wheel hub includes two spoke plates connected in a detachable manner. The edge of the spoke plate is connected with a groove bottom plate, the edge of the groove bottom plate is connected with a bead seat, and a fixing groove is arranged along the circumferential direction on the inner side of the groove bottom plate. The depth-limiting wheel further includes a guard plate. The edge of the guard plate is connected with an elastic piece, and a fixing protrusion that can cooperate with the fixing groove is connected to the elastic piece. The inner side of the guard plate is connected with a fixing bolt mounting plate, and a fixing bolt that can abut against the elastic piece is threadedly connected to the fixing bolt mounting plate. The guard plate is provided with an operation hole corresponding to the fixing bolt, and a plug is detachably installed in the operation hole.

[0006] During use, the fixing protrusion is located in the fixing groove, and the front end of the fixing bolt abuts against the elastic piece. At this time, the guard plate cannot be separated from the groove bottom plate. When the guard plate needs to be disassembled, first remove the plug, insert a screwdriver into the operation hole to rotate the fixing bolt, and the fixing bolt is separated from the contact with the elastic piece. At this time, pull the guard plate, the elastic piece deforms under the external force, and the fixing protrusion is separated from the fixing groove. The guard plates are located on both sides of the wheel hub and are used to enclose the internal space of the wheel hub, reducing the risk of sundries such as soil and straw entering the inside of the wheel hub during the operation and improving the safety of the equipment operation.

[0007] Preferably, the edge of the guard plate is connected with a guard plate outer ring arranged along the circumferential direction of the guard plate, and a plurality of pairs of slotted holes are arranged on the guard plate outer ring. The elastic piece is formed by the part between each pair of two slotted holes.

[0008] During use, the contact area between the guard plate outer ring and the groove bottom plate is large, which is beneficial to improving the stability of the guard plate. At the same time, it is convenient for the processing of the elastic piece.

[0009] Preferably, the fixing bolt mounting plate is arranged circumferentially along the guard plate.

[0010] This structure facilitates the processing and manufacturing of the fixing bolt mounting plate and improves the connection and disassembly strength of the guard plate.

[0011] Preferably, the fixing bolts are arranged obliquely.

[0012] When the guard plate needs to be disassembled, first remove the plug, insert a screwdriver into the operation hole and rotate the fixing bolt. The inclined arrangement of the fixing bolt facilitates the operation.

[0013] Preferably, the plug is made of rubber.

[0014] This structure facilitates the loading and unloading of the plug.

[0015] Preferably, a wheel axle mounting hole is provided on the spoke plate, a wheel axle through hole is provided on the guard plate, and a sealing ring is installed inside the wheel axle through hole.

[0016] This structure facilitates the installation of the wheel axle.

[0017] Preferably, two spoke plates are connected by a bolt and nut structure.

[0018] This structure facilitates the connection of the two spoke plates.

[0019] Preferably, a number of weight reduction holes are provided on the spoke plate.

[0020] This structure is beneficial to reducing the weight of the spoke plate.

[0021] In summary, the beneficial effects of the present utility model are as follows: The guard plates are located on both sides of the hub and are used to enclose the internal space of the hub, reducing the risk of soil, straw and other sundries entering the hub during operation and improving the safety of equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural view of a depth-limiting wheel of a seeding machine according to the present utility model;

[0023] Figure 2 is a schematic internal structural view of a depth-limiting wheel of a seeding machine according to the present utility model;

[0024] Figure 3 is a schematic structural view of a hub in a depth-limiting wheel of a seeding machine according to the present utility model;

[0025] Figure 4 is a schematic structural view of a guard plate in a depth-limiting wheel of a seeding machine according to the present utility model;

[0026] Figure 5 is Figure 1 a schematic structural view of the middle section A-A;

[0027] Figure 6 is Figure 5 The enlarged structural schematic diagram of local B in it.

[0028] In the figure: 1. Tire;

[0029] 2. Wheel hub; 201. Spoke plate; 202. Groove bottom plate; 203. Bead seat; 204. Axle mounting hole; 205. Spoke connection hole; 206. Weight reduction hole; 207. Bolt and nut structure;

[0030] 3. Guard plate; 4. Axle through hole; 5. Sealing ring; 6. Operation hole; 7. Plug; 8. Fixed groove; 9. Outer ring of guard plate; 10. Fixed bolt mounting plate; 11. Groove; 12. Elastic piece; 13. Fixed protrusion; 14. Fixed bolt hole; 15. Fixed bolt. Specific embodiments

[0031] The following combines the drawings and embodiments to further describe in detail the specific embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0032] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.

[0033] The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise stated, the meaning of "plurality" is two or more.

[0034] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0035] The following further illustrates the present utility model in conjunction with the drawings and specific embodiments:

[0036] As shown Figures 1 to 6 in the figure, a depth-limiting wheel of a seeder includes a wheel hub 2 and a tire 1. The wheel hub 2 includes two spoke plates 201 connected in a detachable manner. A groove bottom plate 202 is connected to the edge of the spoke plate 201. A bead seat 203 is connected to the edge of the groove bottom plate 202. A fixing groove 8 is provided on the inner side of the groove bottom plate 202 along its circumferential direction. It further includes a guard plate 3. An elastic piece 12 is connected to the edge of the guard plate 3. A fixing protrusion 13 that can cooperate with the fixing groove 8 is connected to the elastic piece 12. A fixing bolt mounting plate 10 is connected to the inner side of the guard plate 3. A fixing bolt 15 that can abut against the elastic piece 12 is threadedly connected to the fixing bolt mounting plate 10. An operation hole 6 corresponding to the fixing bolt 15 is provided on the guard plate 3. A plug 7 is detachably installed in the operation hole 6. Specifically, the spoke plate 201, the groove bottom plate 202 and the bead seat 203 are integrally designed and can be made by stamping steel plates, reducing the manufacturing cost. Specifically, fixing bolt holes 14 are provided on the fixing bolt mounting plate 10.

[0037] During use, the fixing protrusion 13 is located in the fixing groove 8, and the front end of the fixing bolt 15 abuts against the elastic piece 12. At this time, the guard plate 3 cannot be detached from the groove bottom plate 202. When the guard plate 3 needs to be disassembled, first remove the plug 7, insert a screwdriver into the operation hole 6 and rotate the fixing bolt 15. The fixing bolt 15 is separated from the contact with the elastic piece 12. At this time, pull the guard plate 3, and the elastic piece 12 deforms under the action of an external force, and the fixing protrusion 13 is separated from the fixing groove 8. The guard plate 3 is located on both sides of the wheel hub 2 and is used to enclose the internal space of the wheel hub 2, reducing the risk of soil, straw and other sundries entering the inside of the wheel hub 2 during operation and improving the safety of equipment operation.

[0038] Specifically, an outer guard plate ring 9 is connected to the edge of the guard plate 3 along its circumferential direction. A plurality of pairs of slotted openings 11 are provided on the outer guard plate ring 9. The elastic piece 12 is formed by the part between each pair of two slotted openings 11. During use, the contact area between the outer guard plate ring 9 and the groove bottom plate 202 is large, which is beneficial to improving the stability of the guard plate 3. At the same time, it is convenient for the processing of the elastic piece 12.

[0039] Specifically, the fixing bolt mounting plate 10 is arranged along the circumferential direction of the guard plate 3. This structure is convenient for the processing and manufacturing of the fixing bolt mounting plate 10 and improves the disassembly strength of the guard plate 3 at the same time. The fixing bolt 15 is inclined. When the guard plate 3 needs to be disassembled, first remove the plug 7, insert a screwdriver into the operation hole 6 and rotate the fixing bolt 15. The inclined setting of the fixing bolt 15 is convenient for operation. The plug 7 is made of rubber. Specifically, the plug 7 and the operation hole 6 are connected by interference fit. This structure is convenient for the loading and unloading of the plug 7.

[0040] Specifically, a wheel axle mounting hole 204 is provided on the spoke plate 201, a wheel axle through hole 4 is provided on the guard plate 3, and a sealing ring 5 is installed inside the wheel axle through hole 4. This structure facilitates the installation of the wheel axle. The two spoke plates 201 are connected by a bolt and nut structure 207. Specifically, a number of spoke connection holes 205 are provided on the spoke plate 201. This structure facilitates the connection of the two spoke plates 201. A number of weight reduction holes 206 are provided on the spoke plate 201. This structure is beneficial to reducing the weight of the spoke plate 201.

[0041] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A depth-limiting wheel for a seeder, comprising a wheel hub (2) and a tire (1), characterized in that, The hub (2) includes two spoke plates (201) detachably connected to each other. The edge of the spoke plate (201) is connected to a groove bottom plate (202). The edge of the groove bottom plate (202) is connected to a bead seat (203). A fixing groove (8) is provided on the inner side of the groove bottom plate (202) along its circumferential direction. It further includes a guard plate (3). The edge of the guard plate (3) is connected to an elastic piece (12). A fixing protrusion (13) capable of cooperating with the fixing groove (8) is connected to the elastic piece (12). The inner side of the guard plate (3) is connected to a fixing bolt mounting plate (10). A fixing bolt (15) capable of abutting against the elastic piece (12) is threadedly connected to the fixing bolt mounting plate (10). The guard plate (3) is provided with an operation hole (6) corresponding to the fixing bolt (15). A plug (7) is detachably mounted in the operation hole (6).

2. The depth-limiting wheel of the seeder according to claim 1, characterized in that, The edge of the guard plate (3) is connected to a guard plate outer ring (9) arranged along its circumferential direction. A number of pairs of slotted openings (11) are provided on the guard plate outer ring (9). The elastic piece (12) is formed by the part between each pair of two slotted openings (11).

3. The depth-limiting wheel of the seeder according to claim 2, characterized in that, The fixing bolt mounting plate (10) is arranged along the circumferential direction of the guard plate (3).

4. The depth-limiting wheel of the seeder according to claim 1, characterized in that, The fixing bolt (15) is inclined.

5. The depth-limiting wheel of the seeder according to claim 1, characterized in that, The plug (7) is made of rubber.

6. The depth-limiting wheel of the seeder according to any one of claims 1 to 5, characterized in that A wheel axle mounting hole (204) is provided on the spoke plate (201). A wheel axle through hole (4) is provided on the guard plate (3). A sealing ring (5) is mounted on the inner side of the wheel axle through hole (4).

7. The depth-limiting wheel of the seeder according to any one of claims 1 to 5, characterized in that, The two spoke plates (201) are connected to each other through a bolt and nut structure (207).

8. The depth-limiting wheel of the seeder according to any one of claims 1 to 5, characterized in that A number of weight reduction holes (206) are provided on the spoke plate (201).

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