Outer wheel structure for mechanical wheel and mechanical wheel

Abstract

The outer wheel structure comprises an outer wheel rim, and further comprises a plurality of bolt holes which are distributed along the periphery of the outer wheel rim in a surrounding mode and penetrate through the outer wheel rim, and the bolt holes are all located on the same datum plane; the exhaust holes are distributed in the outer rim in a penetrating manner; the connecting clamping grooves are located in the bolt holes in the inner end face of the outer rim and used for being connected with a to-be-installed bolt base in a clamped and embedded mode. Compared with the prior art, the tire has the beneficial effects that through the bolt holes and the exhaust holes in a penetrating manner, on one hand, part of sizing materials generated in the vulcanizing process of the tire tread and the outer rim permeate into the bolt holes and the exhaust holes, so that the corresponding bonding area is increased, and the bonding effect is improved; on the other hand, gas generated in the vulcanization process can be exhausted through the exhaust holes so as to reduce the hollowing phenomenon, and the clamping and embedding design mode also reduces the risk that the bolts at the connecting positions are prone to breakage / looseness due to too large local stress.

Description

Technical Field

[0001] The utility model belongs to the field of tires, and in particular relates to an outer wheel structure for a mechanical wheel and the mechanical wheel. Background Art

[0002] A mechanical wheel (non-pneumatic tire) refers to a wheel hub composed of an inner and outer rim, with corresponding hinges and shock absorbers added between the two to replace the shock absorption function of the pneumatic tire.

[0003] In the outer rim structure, its outer end needs to be connected to the corresponding tread, and its inner end needs to be connected to the corresponding hinge and / or shock absorber. Therefore, how to ensure the tightness and reliability of the connection between the inner and outer parts is one of the problems that still need to be solved. Utility Model Content

[0004] The details of one or more embodiments of the present invention are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent.

[0005] The utility model provides an outer wheel structure and a mechanical wheel for a mechanical wheel. Through the through-type bolt hole and exhaust hole design, on the one hand, part of the rubber generated during the vulcanization process of the tread and the outer rim can penetrate into the bolt hole and the exhaust hole to increase the corresponding bonding area and improve the bonding effect. On the other hand, the gas generated during the vulcanization process is also discharged through the exhaust hole, thereby avoiding the hollowing phenomenon; at the same time, the embedded structural design also reduces the risk of the bolts being easily broken / loosened due to excessive local stress.

[0006] The utility model discloses an outer wheel structure for a mechanical wheel, comprising an outer wheel rim and:

[0007] A plurality of bolt holes are distributed around the outer circumference of the outer rim and are arranged through the outer rim, and the plurality of bolt holes are all located on the same reference plane;

[0008] A plurality of exhaust holes are distributed throughout the outer rim;

[0009] The connecting slot is located at the bolt hole on the inner end surface of the outer rim and is used to form a snap-fit ​​connection with the bolt seat to be installed.

[0010] In some embodiments, the connection slot includes:

[0011] The inner convex ring is an annular boss-shaped structure and is arranged at the geometric center of the width of the outer rim axial surface.

[0012] In some embodiments, further comprising:

[0013] The wire thread sleeve is arranged in the bolt hole.

[0014] In some embodiments, further comprising:

[0015] The bottom of the bolt seat is provided with a mounting slot for being embedded and mounted on the inner convex ring, and is fastened to the corresponding bolt hole by means of bolts.

[0016] In some embodiments, further comprising:

[0017] A pair of outer convex rings are annular boss-shaped structures and are arranged on both sides of the outer side of the bolt seat on the inner convex ring.

[0018] In some embodiments, a pair of lugs with hinge holes are provided on the bolt seat; and the bolt is located between the pair of lugs.

[0019] In some embodiments, some of the exhaust holes are located on the outer convex ring.

[0020] In some embodiments, the plurality of exhaust holes are evenly arranged on both sides of the plurality of bolt holes.

[0021] In some embodiments, the outer end surface of the outer rim is in a truncated cone structure, and the cone angle thereof ranges from 0.5° to 2°.

[0022] A mechanical wheel comprises the outer wheel structure as described in any one of the above embodiments.

[0023] Compared with the prior art, the utility model has the following advantages:

[0024] 1. Through-type bolt holes and vents allow the rubber from the tread and outer rim to penetrate into the tread during vulcanization, enhancing the bond and effectively reducing the risk of hollowing during vulcanization. The outer rim and bolt seat utilize a snap-fit ​​design, reducing the risk of fracture or loosening caused by excessive localized stress on the bolts during vehicle steering.

[0025] 2. By increasing the taper (0.5°-2°), the entire mechanical wheel adapts to the vehicle's tire inclination during installation, effectively improving the force distribution on the tread contact patch, making it more evenly distributed and helping to enhance the wheel's handling stability. Furthermore, increasing the taper improves the stress conditions of the internal mechanical structure, effectively reducing the axial forces on various components due to the installation inclination, minimizing mechanical wear during operation, extending the service life of various components, and reducing operating noise.

[0026] 3. Add a wire thread sleeve in the bolt hole to effectively strengthen and protect the internal thread on the outer rim, so as to improve its connection strength, improve the connection conditions, enhance the wear resistance, increase its force surface, and thus play a role in preventing loosening and increasing the safety and durability of the mechanical wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0029] Figure 2 This is a schematic diagram of the installation structure of the bolt seat of the utility model.

[0030] Figure 3 This is a schematic diagram of the taper angle of the outer end face of the outer rim of the utility model.

[0031] Figure 4 This is a schematic diagram of the installation structure of the wire screw sleeve of the utility model.

[0032] Description of the drawings: outer rim 1, bolt hole 2, exhaust hole 3, inner convex ring 4, outer convex ring 5, outer end face 6, bolt seat 7, bolt 8, wire thread sleeve 9, gasket 10. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] Obviously, the drawings described below are merely examples or embodiments of the present invention. A person skilled in the art can apply the present invention to other similar scenarios based on these drawings without inventive effort. Furthermore, it is understood that, although the effort involved in such a development process may be complex and lengthy, for a person skilled in the art related to the disclosure of the present invention, any design, manufacturing, or production changes based on the technical content disclosed in the present invention are merely conventional technical means and should not be construed as an insufficiency of the disclosure of the present invention.

[0035] References to "embodiments" in this disclosure mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the disclosure. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this disclosure may be combined with other embodiments, unless there is a conflict.

[0036] An outer wheel structure for a mechanical wheel, comprising an outer wheel rim 1, and further comprising:

[0037] A plurality of bolt holes 2 are distributed around the outer circumference of the outer rim 1 and are provided through the outer rim 1, and the plurality of bolt holes 2 are all located on the same reference plane;

[0038] A plurality of exhaust holes 3 are distributed throughout the outer rim 1;

[0039] The connecting slot is located at the bolt hole 2 on the inner end surface of the outer rim 1 and is used to form a snap-fit ​​connection with the bolt seat 7 to be installed.

[0040] Both the bolt hole 2 and the vent hole 3 adopt a through-type structural design. The purpose is that when the tread and the outer rim are vulcanized (the tread is adhered to the outer surface of the outer rim by vulcanization), part of the rubber will penetrate into the vent hole 3 during the vulcanization heating process, thereby filling the interior to increase its adhesion area, improve the adhesion effect, and thus enhance the bonding effect between the tread and the outer rim. At the same time, the vent hole 3 can also play a venting role, discharging the gas generated during the vulcanization process and reducing the occurrence of hollowing. Similarly, the rubber will also penetrate into the bolt hole 2, and the bolt that is already in a threaded connection state will further improve its adhesion effect, thereby ensuring that the bolt seat will not loosen after installation. The embedded structural design is adopted because the connection of the vehicle will be affected by lateral force during the turning process. The embedded method can effectively solve the problem of excessive local stress on the bolts at the connection, thereby ensuring its safety and reliability.

[0041] In some embodiments, specifically, the connecting card slot includes:

[0042] The inner convex ring 4 is an annular boss-like structure and is arranged at the geometric center of the axial width of the outer rim 1 .

[0043] In this embodiment, a convex structural design is adopted. Similarly, a concave design can also be adopted. However, the concave design is relatively difficult to process. At the same time, the concave design will also lead to a reduction in the aperture length at the connection, thereby reducing the bonding area. The convex structural design is equivalent to increasing a part of the aperture length, so its effect is better.

[0044] In some embodiments, further comprising:

[0045] The wire thread sleeve 9 is arranged in the bolt hole 2.

[0046] The wire thread insert is a new type of threaded fastener. It is a spring-shaped concentric body of internal and external threads precisely machined from high-strength, high-precision, smooth-surfaced stainless steel wire with a diamond-shaped cross-section. Developed to protect threaded holes in non-ferrous metals, it is screwed into and fastened to the threaded hole of one of the connected parts, forming an internal thread that meets international standards. Its shape is similar to a coil spring, with high hardness and good surface roughness. By installing a wire thread insert inside it, the internal threads on the outer rim are effectively strengthened and protected, thereby increasing its connection strength, improving connection conditions, enhancing wear resistance, and increasing its load-bearing surface, thereby preventing loosening and increasing the safety and durability of the mechanical wheel.

[0047] In some embodiments, the method further comprises:

[0048] Bolt seat 7 has a mounting slot at its bottom for snap-fitting into inner convex ring 4 and is secured to the corresponding bolt hole 2 via bolt 8. Specifically, bolt seat 7 features a pair of lugs with hinged holes. Two bolt holes are located between the lugs for mounting bolts 8, each with a hexagonal recessed head. To ensure a secure connection during tightening, a gasket 10 is added to prevent loosening.

[0049] In some embodiments, further comprising:

[0050] A pair of outer convex rings 5 ​​are provided on both sides of the outer sides of the bolt seat 7 on the inner convex ring 4 .

[0051] Specifically, in this embodiment, two outer convex rings 5 ​​are provided, one on each side of the inner convex ring 4. In some cases, some exhaust holes 3 can be located on the outer convex ring 5, thereby increasing the diameter of the exhaust port 3 and improving the contact area. In some cases, due to different matching vehicle models, the bolt seats 7 may not be installed in the middle, but rather on both sides to form a double-cross or double-side shock-absorbing structure. In this case, the exhaust holes 3 on the outer convex ring 5 can be eliminated and replaced with corresponding bolt seats 7.

[0052] In some embodiments, the plurality of exhaust holes 3 are evenly arranged on both sides of the plurality of bolt holes 2. Figure 3 As shown, the exhaust holes on both sides of the bolt hole 2 are in a continuous broken line structure. Similarly, other uniform distribution methods can also be used.

[0053] In some embodiments, the outer end face of the outer rim 1 is in the shape of a truncated cone, and the angle of the cone angle ranges from 0.5° to 2°. A slight inclination angle range can make the entire mechanical wheel adapt to the tire inclination of the vehicle itself when it is installed on the vehicle, effectively improving the force distribution of the tread contact surface, making it more evenly stressed, which is beneficial to improving the handling stability of the mechanical wheel. On the other hand, by increasing the taper, the stress condition of the internal mechanical structure can be improved, effectively reducing the axial force borne by each component due to the installation inclination angle, reducing mechanical wear during operation, and beneficially increasing the service life of each component and reducing operating noise. At the same time, the structural design of the inclination angle increases the contact area of ​​its bonding compared to horizontal bonding, so its bonding performance after vulcanization is also better.

[0054] A mechanical wheel comprises the outer wheel structure as described in any one of the above embodiments.

[0055] Its working principle is:

[0056] The location of the bolt hole 2 is selected according to the load capacity of different vehicle models. For example, for coupes and family vehicles, it can be opened directly on the inner convex ring 4, and a circle of corresponding shock absorber or hinge structure is added. If it is a heavy-duty vehicle, the corresponding bolt hole 2 is opened on the outer convex ring 5, and the setting method of the shock absorber is selected, and then the specific installation position of the bolt seat 7 is adjusted.

[0057] For example, after the bolt seat 7 is embedded in the inner convex ring 4 and connected and fixed by bolts 8 and gaskets 10, the tread and the outer rim are subjected to corresponding vulcanization operations. During the vulcanization process, part of the rubber will penetrate into the bolt hole 2 and the exhaust hole 3, which not only improves the bonding degree between the bolt seat 7 and the outer rim, but also improves the bonding degree between the tread and the outer rim. At the same time, the exhaust hole 3 can be vented to avoid hollowing. The embedded connection between the bolt seat 7 and the inner convex ring 4 avoids the problem of local excessive stress in the bolt 8.

[0058] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An outer wheel structure for a mechanical wheel, comprising an outer rim, characterized in that: Also includes: A plurality of bolt holes are distributed around the outer circumference of the outer rim and are arranged through the outer rim, and the plurality of bolt holes are all located on the same reference plane; A plurality of exhaust holes are distributed throughout the outer rim; The connecting slot is located at the bolt hole on the inner end surface of the outer rim and is used to form a snap-fit ​​connection with the bolt seat to be installed.

2. The outer wheel structure according to claim 1, characterized in that: The connecting card slot includes: The inner convex ring is an annular boss-shaped structure and is arranged at the geometric center of the width of the outer rim axial surface.

3. The outer wheel structure according to claim 1, characterized in that: Also includes: The wire thread sleeve is arranged in the bolt hole.

4. The outer wheel structure according to claim 2, characterized in that: Also includes: The bottom of the bolt seat is provided with a mounting slot for being embedded and mounted on the inner convex ring, and is fastened to the corresponding bolt hole by means of bolts.

5. The outer wheel structure according to claim 4, characterized in that: Also includes: A pair of outer convex rings are annular boss-shaped structures and are symmetrically arranged on both sides of the inner convex ring.

6. The outer wheel structure according to claim 4, characterized in that: A pair of lug plates with hinge holes are provided on the bolt seat; the bolt is located between the pair of lug plates.

7. The outer wheel structure according to claim 5, characterized in that: Some of the exhaust holes are located on the outer convex ring.

8. The outer wheel structure according to claim 1, characterized in that: The plurality of exhaust holes are evenly arranged on both sides of the plurality of bolt holes.

9. The outer wheel structure according to claim 1, characterized in that: The outer end surface of the outer rim is in a truncated cone structure, and the cone angle thereof ranges from 0.5° to 2°.

10. A mechanical wheel, characterized in that: The invention comprises the outer wheel structure according to any one of claims 1 to 9.

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