Wheel disk, wheel rim structure and guide wheel with wheel disk and wheel rim structure

Abstract

The utility model belongs to the technical field of agricultural mechanical parts, and particularly relates to a radial plate, a rim structure and a guide wheel with the structure. The rim wraps or fills the protrusions or the notches arranged on the peripheral plate edge of the radial plate, the rim and the radial plate can be prevented from rotating relatively in the circumferential direction while being assembled and positioned, and then the stability and reliability of the connecting structure of the rim and the radial plate are guaranteed. The radial plate and rim structure is applied to the guide wheel, so that radial plate damage caused by connection failure of the radial plate and the rim of the rear wheel body after long-term use can be effectively avoided, and the service life of the guide wheel is further prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to agricultural machinery parts technical field, especially relate to a spoke, rim structure and the guide wheel with the structure. BACKGROUND

[0002] The prior application CN217918174U of the applicant is provided for the production and processing of the spoke, rim structure and the guide wheel with the structure, and provides a spoke, rim structure and the guide wheel with the structure, which comprises a hub, a spoke and a rim, a plurality of petal bodies are combined to form a whole ring plate-shaped spoke, the outer plate edge of the spoke is connected with the rim by insertion connection, and the hub is arranged in the middle connecting hole of the spoke and is fixedly connected with the hole of the middle connecting hole. Since the hub, the spoke and the rim are produced and processed separately, the components can be made of different materials, thereby achieving the effect of reducing the weight of the agricultural machinery while ensuring the wear resistance of the wheel body. However, in actual application, due to the large difference in material between the rim and the spoke, even if the rim and the spoke are connected by welding, the welding will be easily disconnected after long-term use, thereby causing the relative rotation of the rim and the spoke, leading to the wear of the spoke plate body, and the reliability and service life of the spoke, rim structure and the guide wheel with the structure cannot meet the requirements. SUMMARY

[0003] The utility model aims at providing a spoke, rim structure and the guide wheel with the structure, which can avoid the relative rotation of the rim and the spoke.

[0004] To achieve the above-mentioned purpose, the utility model adopts the technical scheme that:

[0005] A spoke, rim structure, comprising a whole ring plate-shaped spoke, the outer periphery of the spoke is connected with a whole ring-shaped rim, and the middle part of the spoke is provided with a central through hole for the hub or shaft to pass through; the outer periphery plate edge of the spoke is provided with a protrusion or recess, and the rim covers the outer periphery plate edge of the spoke and the protrusion and / or recess arranged at the outer periphery plate edge.

[0006] A guide wheel with the above-mentioned spoke, rim structure, the middle part of the spoke is connected with a tubular hub, and the outer periphery surface of the rim is arranged in the same core with the pipe core of the hub; the spoke is provided with a weight-reducing hole.

[0007] Compared with the prior art, the utility model has the following technical effects: the rim covers or fills the protrusion or recess arranged at the outer periphery plate edge of the spoke, which can realize the assembly and positioning of the rim and the spoke while avoiding the relative rotation of the two in the circumferential direction, thereby ensuring the stability and reliability of the connection structure of the rim and the spoke. The guide wheel with the above-mentioned spoke, rim structure can effectively avoid the damage of the spoke caused by the connection failure of the spoke and the rim of the wheel body after long-term use, thereby prolonging the service life of the guide wheel. BRIEF DESCRIPTION OF DRAWINGS

[0008] The following is a brief description of the contents expressed by the figures of the present specification and the reference signs in the figures:

[0009] Figure 1 is a front view of the spoke of Example One;

[0010] Figure 2 is a cross-sectional view of A-A in Figure 1

[0011] Figure 3 is a front view of the spoke of Example One;

[0012] Figure 4 is a front view of the spoke of Example Two;

[0013] Figure 5 is a front view of the spoke of Example Three;

[0014] Figure 6 is a front view of the spoke of Example Four;

[0015] Figure 7 is a front view of the spoke of Example Five;

[0016] Figure 8 is a cross-sectional view of the spoke of Example Five in the state of being fitted to the rim, perpendicular to the axial direction of the rim core;

[0017] Figure 9 is a front view of the spoke of Example Six;

[0018] Figure 10 is a perspective view of the spoke of Example;

[0019] Figure 11 is a cross-sectional view of B-B in Figure 9

[0020] Figure 12 is a front view of the spoke of Example Seven;

[0021] Figure 13 is a perspective view of the spoke of Example Seven;

[0022] Figure 14 is a cross-sectional view of C-C in Figure 12

[0023] Figure 15 is a perspective view of the guide wheel of Example Eight;

[0024] Figure 16 is a front view of the spoke assembly of Example Eight;

[0025] Figure 17 is a perspective view of the guide wheel of Example Nine; ​​​

[0026] Figure 18 is the front view of the spoke assembly in Example Nine. DETAILED DESCRIPTION

[0027] The specific embodiments of the present application will be further described in detail with reference to the accompanying drawings.

[0028] Example One

[0029] A spoke and rim structure applied to a guide wheel, as shown in Figs. Figure 1 , 2 , 3, comprises a spoke 20 in the shape of a ring plate, a central through hole 21 is arranged in the middle of the spoke 20 for the wheel hub 30 or the wheel shaft to pass through, recesses 23 are arranged at the outer peripheral plate edges of the spoke 20, and the outer periphery of the spoke 20 is connected to a rim 10 in the shape of a ring, the rim 10 covers the outer peripheral plate edges of the spoke 20 and the recesses 23 arranged at the outer peripheral plate edges.

[0030] In this embodiment, the spoke 20 is an integral plate body, which can be formed by one-time stamping of a plate material. The outer peripheral plate edges of the spoke 20 are recessed inward along the radial direction to form two recesses 23 in the shape of a crescent, and the two recesses 23 are symmetrically arranged on both sides of the outer periphery of the spoke 20, so that the outer periphery of the spoke 20 is in the shape of an ellipse, as shown in the accompanying drawings. Figure 3 In this embodiment, the spoke 20 is an integral plate body, which can be formed by one-time stamping of a plate material. The outer peripheral plate edges of the spoke 20 are recessed inward along the radial direction to form two recesses 23 in the shape of a crescent, and the two recesses 23 are symmetrically arranged on both sides of the outer periphery of the spoke 20, so that the outer periphery of the spoke 20 is in the shape of an ellipse, as shown in the accompanying drawings.

[0031] The outer peripheral plate edges of the spoke 20 comprise an outer peripheral surface and two side plate surfaces adjacent to the outer peripheral surface. The connection section of the rim 10 and the spoke 20 is shown in Fig. Figure 2 As shown in Fig. , the rim 10 has a cavity matching the outer peripheral plate edges of the spoke 20, the outer peripheral plate edges of the spoke 20 are accommodated in the cavity, and the body of the rim 10 fills the recesses 23, so that the matching surface of the rim 10 and the spoke 20 is not a perfect circle, which can effectively limit the relative rotation of the rim 10 and the spoke 20 in the circumferential direction of the spoke 20, thereby ensuring the stability and reliability of the connection between the spoke and the rim.

[0032] In order to facilitate processing while ensuring the effective connection between the rim 10 and the spoke 20, the rim 10 is die-forged and formed on the outer periphery of the spoke 20 in this embodiment, and specifically, a heated pipe ring-shaped blank can be die-forged and formed on the outer periphery of the spoke 20 at one time, so that it is not necessary to process the inner side of the rim 10 to form a cavity for accommodating the outer peripheral plate edges of the spoke 20, and it is not necessary to use a welding process which is prone to welding failure, which can ensure the stable and reliable connection between the rim 10 and the spoke 20 while omitting the processing steps. In this embodiment, the recesses 23 are in the shape of a crescent, so that the curvature change rate of the outer periphery of the spoke 20 is small, which can effectively avoid the appearance quality problems caused by the excessive local spacing between the spoke 20 and the rim blank during the die-forging process.

[0033] Appendix Figure 1 , 2 For the guide wheel utilizing the aforementioned spoke and rim structure, a hub 30 is included, which is inserted through and connected to the center of the spoke 20. To ensure reliable guidance of the drive belt or chain wound around the guide wheel, the outer periphery of the rim 10 should be coaxially arranged with the core of the hub 30. This embodiment is illustrated in the appendix. Figure 1 , 2 As shown, the outer circumferential surface of the rim 10 is generally a smooth cylindrical surface, that is, the outer circumferential surface of the rim 10 is arranged concentrically with the core of the hub 30. Furthermore, in order to reduce the weight of the guide wheel and achieve mechanical lightweighting, the spoke 20 is provided with weight reduction holes 24, and more than three weight reduction holes 24 are evenly distributed at equal angles around the circumference of the spoke 20.

[0034] Example 2

[0035] As attached Figure 4 As shown, the difference between this embodiment and Embodiment 1 is that four semi-circular notches 23 are provided at equal angular intervals around the outer periphery of the spoke 20, making the outer periphery of the spoke 20 a non-circular outline. In other embodiments, the notches 23 can also be of other shapes, and the number can be increased or decreased as needed.

[0036] Example 3

[0037] As attached Figure 5 As shown, the difference between this embodiment and Embodiment 1 is that multiple recesses 23 are evenly and continuously arranged around the outer periphery of the spoke plate 20, making the outer periphery of the spoke plate 20 serrated.

[0038] Example 4

[0039] As attached Figure 6 As shown, the difference between this embodiment and Embodiment 1 is that the outer peripheral plate edge of the spoke 20 protrudes radially outward to form a protrusion 22. The protrusion 22 is generally semi-circular, and four protrusions are evenly spaced around the spoke 20. In other embodiments, the protrusion 22 can also be of other shapes, and the number can be increased or decreased as needed.

[0040] Example 5

[0041] As attached Figure 7 As shown in the figure, the dotted line is a circle arranged with the same core as the central through hole 21. The difference between this embodiment and embodiment one is that the outer peripheral plate edge of the spoke plate 20 is recessed inward along its radial direction to form a crescent-shaped notch 23. The outer peripheral plate edge of the spoke plate 20 is eccentrically arranged with the central through hole 21, and the spoke plate 20 as a whole is in the shape of an eccentric circular plate.

[0042] The cross-sectional view of this embodiment at the mid-plane perpendicular to the rim spindle direction is attached. Figure 8As shown, the body of the rim 10 is filled with recesses 23, making the spokes 20 and the rim 10 as a whole eccentric disc shape. When the disc rotates around its geometric axis, it has a large moment of inertia, which can improve the stability of the disc's rotation state, reduce the torque between the spokes 20 and the rim 10 during rotation, and reduce the interaction force between the mating surfaces of the spokes 20 and the rim 10, thereby improving the stability of the mating surfaces after long-term use.

[0043] Example 6

[0044] As attached Figures 9-11 As shown, the difference between this embodiment and Embodiment 1 is that the two side surfaces of the spoke 20 near the outer periphery are respectively provided with protrusions 22 extending along the axial direction of the spoke 20. The protrusions 22 are formed by columnar elements fixed to the outer periphery of the spoke 20, as detailed in the attached figure. Figure 11 As shown, the columnar members pass through the holes opened in the spoke plate 20, and the columnar members exposed on both sides of the spoke plate 20 are symmetrically arranged on both sides of the spoke plate 20.

[0045] In other embodiments, the protrusion 22 and the spoke 20 can be integrally formed; alternatively, two columnar elements can be fixed on each side of the spoke 20 to form the protrusion 22. The protrusion 22 is designed to cooperate with the rim 10 to restrict their relative rotation.

[0046] Example 7

[0047] As attached Figures 12-14 As shown, the difference between this embodiment and Embodiment 1 is that the two side surfaces of the spoke 20 near the outer periphery are respectively provided with through holes formed by recesses along the axial direction of the spoke 20, and the through holes constitute recesses 23. In other embodiments, blind holes may also be provided on the side surfaces of the spoke 20 near the outer periphery, and the blind holes constitute recesses 23. The blind holes may be provided on the two side surfaces of the spoke 20 respectively.

[0048] In Embodiments 1, 2, and 3, the notch 23 is formed by the radial inward indentation of the spoke plate 20, and the notches 23 are arranged at intervals or continuously around the circumference of the spoke plate 20, making the spoke plate 20 a centrally symmetrical ring plate. In Embodiment 5, only one notch 23 is provided at the outer periphery of the spoke plate 20, making the spoke plate 20 non-centrally symmetrical. In Embodiment 4, the spoke plate 20 protrudes outward along its radial direction to form a protrusion 22. In Embodiment 6, the protrusion 22 is formed by the axial outward protrusion of the spoke plate 20. In Embodiment 7, the notch 23 is formed by the axial indentation of the spoke plate 20.

[0049] As can be seen from the above embodiments, a protrusion 22 can be formed by extending outward along the radial or axial direction of the spoke 20, and a recess 23 can be formed by recessing inward along the radial or axial direction of the spoke 20. The rim 10 covering the protrusion 22 or filling the recess 23 can restrict the relative rotation between the spoke 20 and the rim 10. One or more protrusions 22 or recesses 23 can be arranged circumferentially around the spoke 20; when multiple protrusions 22 or recesses 23 are arranged, they can be arranged alternately or continuously; only protrusions 22 or only recesses 23 can be arranged, or protrusions 22 or recesses 23 can be arranged separately on the outer periphery of the same spoke 20; protrusions 22 or recesses 23 can be arranged at equal angular intervals circumferentially around the spoke 20; protrusions 22 or recesses 23 can be arranged symmetrically circumferentially around the spoke 20 or in the thickness direction of the spoke 20, or they can be arranged asymmetrically. As long as the protrusion 22 and the notch 23 can cooperate with the rim 10 to restrict the circumferential relative rotation between the rim 10 and the spoke 20, it is sufficient.

[0050] Example 8

[0051] The difference between this embodiment and Embodiment 1 is that the spoke 20 is not a one-piece molded part, but is formed by assembling several spoke units, and the spoke units and the rim 10 form an interlocking fit, with the rim 10 adopting a one-piece structure. (See attached...) Figure 15 As shown, the spoke unit includes a plate-shaped flap unit 20a and a strip-shaped spoke unit 20b. In this embodiment, the spoke unit 20b is strip-shaped and arranged radially along the spoke 20, while the flap unit 20a is fan-shaped. The spoke unit 20b has a protrusion 22 that engages with the rim 10. The protruding direction of the protrusion 22 is parallel to the radial direction of the spoke 20. During assembly, the spoke unit 20b can be displaced radially outward from the inside of the rim 10 to insert the protrusion 22 into the corresponding slot in the rim 10, thereby connecting the spoke unit 20b to the rim 10. In other embodiments, a notch 23 that engages with the rim 10 can also be provided on the spoke unit 20b. When the spoke unit 20b is plugged into the rim 10, the circumferential relative displacement between the spoke unit and the rim 10 is limited. Therefore, only one spoke unit 20b with a protrusion 22 or a notch 23 is needed to achieve circumferential positioning between the spoke 20 and the rim 10. In this embodiment, to reduce the shear force borne by the protrusion 22 on each spoke unit 20b during wheel rotation, three spoke units 20b are evenly spaced circumferentially around the spoke 20. In other embodiments, the number of spoke units 20b can be changed according to requirements. Alternatively, protrusions 22 or notches 23 can be provided on the outer edge of the spoke unit 20a to achieve circumferential positioning between the spoke 20 and the rim 10.

[0052] In this embodiment, the spoke unit 20b has a dimension in the spoke plate 20 axial direction greater than the petal unit 20a in the spoke plate 20 axial direction, that is, the thickness of the spoke unit 20b is greater than the thickness of the spoke plate unit 20a, to strengthen the element strength of the spoke unit 20b.

[0053] In other embodiments, only the petal unit 20a or only the spoke unit 20b can also be provided. For example, a plurality of petal units 20a in the form of a whole fan-shaped plate are combined to form the spoke plate 20, and the outer plate edge of one or more petal units 20a is provided with a protrusion 22 or recess 23 that forms a plug-in fit with the rim 10. Alternatively, a plurality of spoke units 20b in the form of a whole strip are combined to form the spoke plate 20, and the outer end of one or more spoke units 20b is provided with a protrusion 22 or recess 23 that forms a plug-in fit with the rim 10, and the adjacent two spoke units 20b can be arranged in close contact or spaced apart.

[0054] Embodiment Nine

[0055] The difference between this embodiment and embodiment eight is that the rim 10 is formed by combining two or more rim unit segments 10a, as shown in the accompanying drawings. Figure 17 、 18 In this embodiment, three rim unit segments 10a are provided, and the same spoke unit 20b is plug-in connected to two adjacent rim unit segments 10a. The plug-in connection direction of the spoke unit 20b and the rim unit segment 10a is overall along the radial direction of the spoke plate 20, so that the plug-in connection directions of the two ends of the spoke unit 20b are arranged at an acute angle, so that when the hub 30 is inserted into the middle of the spoke plate 20, the displacement of the spoke unit 20b along the radial direction of the spoke plate 20 is limited, so that the plug-in connection of the spoke unit 20b and the rim unit segment 10a is tightly matched, and the two cannot be easily separated, so that reliable connection of the combined spoke plate 20 and the combined rim 10 can be achieved without welding.

[0056] In other embodiments, the same petal unit 20a can also be plug-in connected to two adjacent rim unit segments 10a, as long as the end portions of the two adjacent rim unit segments 10a can form radial and circumferential limiting cooperation with the same spoke plate unit in the assembly state of the hub 30 or the wheel shaft being fitted in the middle of the spoke plate 20, to achieve stable and reliable installation of the spoke plate 20 and the rim 10.

Claims

1. A web, rim structure, characterized by: The spoke (20) is a ring-shaped plate, and the outer periphery of the spoke (20) is connected with a rim (10) in a ring shape.

2. The web, rim structure of claim 1, wherein: The protrusions (22) are arranged along the radial direction and / or the axial direction of the spoke (20).

3. The web, rim structure of claim 2, wherein: The protrusions (22) or the recesses (23) are arranged at equal angles along the circumferential direction of the spoke (20).

4. The web, rim structure of claim 3, wherein: The outer periphery of the spoke (20) is non-circular.

5. The web, rim structure of claim 1 wherein: The outer periphery of the spoke (20) is elliptical, or the outer periphery of the spoke (20) is jagged.

6. The web, rim structure of claim 5, wherein: The protrusions (22) are arranged along the axial direction of the spoke (20).

7. The web, rim structure of claim 2 wherein: The protrusions (22) are arranged symmetrically on the two sides of the spoke (20).

8. The web, rim structure of claim 2 wherein: The spoke (20) is an integral part.

9. A web, rim structure according to claim 7 or 8, characterized in that: The spoke (20) is formed by combining a plurality of spoke units, and each spoke unit includes a petal unit (20a) in a plate shape and / or a spoke unit (20b) in a strip shape.

10. The web, rim structure of claim 1 wherein: The spoke unit (20b) is arranged along the radial direction of the spoke (20), and the protrusions (22) and / or the recesses (23) are arranged on the spoke unit (20b).

11. The web, rim structure of claim 1 wherein: The size of the spoke unit (20b) in the axial direction of the spoke (20) is greater than the size of the petal unit (20a) in the axial direction of the spoke (20).

12. The web, rim structure of claim 11, wherein: The rim (10) is formed by combining two or more rim unit segments (10a), and each petal unit (20a) is connected to two adjacent rim unit segments (10a) by insertion, or each spoke unit (20b) is connected to two adjacent rim unit segments (10a) by insertion.

13. The web, rim structure of claim 11, wherein: The spoke (20) is connected to a hub (30) in a pipe shape, the outer periphery of the rim (10) is arranged in the same core as the pipe core of the hub (30), and the spoke (20) is provided with a weight-reducing hole (24).

14. A guide wheel having a web, rim structure as claimed in any one of claims 1 to 13, characterised in that: ​

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