Non-inflatable wheel adopting wave spring as supporting body

Abstract

The non-inflatable wheel adopting the wave springs as the supporting bodies comprises an outer tire layer, the wave springs and a hub, the hub is located in the center of the wheel, clamping grooves are evenly distributed in the outer edge of the hub, the wave springs are arranged in the clamping grooves, meanwhile, the wave springs are evenly distributed in the circumferential direction, and the outer tire layer is arranged between the outer tire layer and the wave springs. And the outer tire layer is tightly sleeved on the outer side of the hub. The non-inflatable wheel provided by the utility model adopts the wave spring as a tire support body, the structure is compact, the material in unit volume has better axial rigidity, the radial bearing capacity is strong, the weight of the support body is lighter, and the stability and the reliability are obviously enhanced; when the whole wheel works, the outer tire layer transmits force to the wave spring serving as a supporting body, the wave spring buffers and absorbs shock through axial and radial elastic deformation so as to weaken vibration and impact transmitted to the hub, and the problems that a non-inflatable wheel is low in axial rigidity, poor in reliability and the like are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to tire technical field especially relates to a non -inflatable wheel of adopting wave spring as support body. BACKGROUND

[0002] The wheel is widely used in various vehicles, contacts with the road surface and bears the load to realize the running function of the vehicle. The traditional tire usually adopts the pneumatic tire, needs to carry out the tire pressure monitoring and inflation, has the risk of damage, leakage and tire burst. The non -inflatable wheel has no risk of leakage and tire burst, and the daily maintenance operation is simple.

[0003] The current non -inflatable tire configuration is usually formed by the circumferential rotation array with constant section, and has the defects of weak axial stiffness and poor reliability. SUMMARY

[0004] In order to solve the above problems, the utility model provides a non -inflatable wheel of adopting wave spring as support body, and the technical scheme is as follows:

[0005] A non -inflatable wheel of adopting wave spring as support body, the wheel comprises an outer tire layer, a wave spring and a hub, wherein:

[0006] The hub is located at the center of the wheel, and the outer edge of the hub is provided with uniformly distributed clamping grooves; the wave spring is arranged in the clamping groove, and the wave spring is uniformly distributed along the circumference; and the outer tire layer is tightly sleeved on the outer side of the hub.

[0007] The stiffness and the outer shape size of the clamping groove are set according to the load, the road surface state and other requirements of the wheel, so that the wave spring is uniformly distributed at all times during the running of the wheel.

[0008] Further, the greater the load borne by the wheel, the smaller the opening angle of the clamping groove and the greater the number, and the wave spring with high stiffness is selected;

[0009] Further, when the load borne by the wheel is small, the opening angle of the clamping groove is increased and the number of the clamping grooves is reduced, and the wave spring with small stiffness is selected.

[0010] The outer surface of the outer tire layer is provided with a protrusion, which directly contacts with the ground to improve the friction coefficient;

[0011] Preferably, the protrusion provided on the outer surface of the outer tire layer is a rounded rectangle or a circle.

[0012] The inner surface of the outer tire layer directly contacts with the wave spring and is connected with the uniformly distributed wave springs.

[0013] The wave spring is fixedly connected with the outer tire layer and the clamping groove,

[0014] Preferably, the wave spring is fixedly connected with the tire layer and the hub through a plurality of connection points, the number of the connection points is set according to the width of the wheel, and the plurality of connection points ensure that the whole wheel has good strength and rigidity;

[0015] Preferably, the wave spring axis is consistent with the tire layer axis and the hub axis;

[0016] Further, the angle between the wave spring axis and the tire layer axis is adjusted, so that the radial load of the wheel is more balanced to meet the actual road use requirements;

[0017] Compared with the prior art, the utility model has the beneficial effects as follows:

[0018] The utility model discloses a wave spring is used as the tire support body, and its structure is compact, the unit volume material has better axial rigidity, the radial bearing capacity is strong, the support body weight is lighter, and stability and reliability are significantly enhanced.In the whole wheel work, the tire layer transmits force to the wave spring as the support body, and the wave spring buffers and absorbs shock through axial and radial elastic deformation, so as to weaken the vibration and impact transmitted to the hub, and the problems of weak axial rigidity and poor reliability of the traditional non-pneumatic wheel are solved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0020] Figure 1 The utility model provides a non-pneumatic wheel whole axial view of using wave spring as support body;

[0021] Figure 2 The utility model provides a non-pneumatic wheel whole front view of using wave spring as support body;

[0022] Figure 3 The utility model provides wave spring schematic view;

[0023] Figure 4 The utility model provides hub schematic view;

[0024] Figure 5 The utility model provides tire layer schematic view.

[0025] Signs:

[0026] 1, tire layer; 2, wave spring; 3, wheel hub; 4, clamping groove; 5, connecting point DETAILED DESCRIPTION

[0027] The utility model will be further explained in connection with the drawings and specific embodiments. It should be noted that the drawings are very simplified and use non-precise ratios, and are only used to facilitate and clarify the purpose of assisting in explaining the embodiments of the utility model.

[0028] A non-pneumatic wheel using a wave spring as a support body, the wheel comprises a tire layer 1, a wave spring 2 and a wheel hub 3, the wheel hub is located at the center of the wheel, and the outer edge of the wheel hub is provided with uniformly distributed clamping grooves, the wave spring is arranged in the clamping grooves, and the wave spring is uniformly distributed along the circumference, and the tire layer is tightly sleeved on the outer side of the wheel hub.

[0029] The tire layer 1 is sleeved on the outer sides of the wave spring 2 and the wheel hub 3, and the axial directions of the three are the same, the wave spring 2 is fixedly connected with the tire layer 1 and the wheel hub 3 as a support body and plays a role in buffering vibration and impact in the running process of the wheel. Figure 1 and Figure 2 The drawings are the overall axonometric view and the front view of the non-pneumatic wheel using the wave spring as the support body of the utility model.

[0030] The wheel serves as a support body, has a compact structure, has better axial rigidity and strong radial bearing capacity per unit volume of material, the wave spring 2 is fixedly connected with the tire layer 1 through six points, and is also connected with the wheel hub 3 through six points, and a plurality of connecting points ensure that the whole wheel has good strength and rigidity. Figure 3 The wave spring provided by the utility model is shown in the schematic view, the axial line of the wave spring 2 is consistent with the axial lines of the tire layer 1 and the wheel hub 3, and the axial line of the wave spring 2 can be adjusted according to actual road surface use requirements to make the radial bearing of the wheel more balanced.

[0031] Figure 4 The wheel hub provided by the utility model is shown in the schematic view, the wheel hub 3 has uniformly distributed clamping grooves on the circumferential outer edge, the opening size of the clamping grooves is basically the same as the outer diameter of the wave spring 2, and the assembly relationship between the two is adjusted through a tolerance. The outer diameter of the wave spring is designed as a negative tolerance, and the clamping groove is designed as a positive tolerance, so that the two are gap-fitted in the circular arc contact section, and the assembly coordination is ensured. The size of the non-circular arc section of the clamping groove is smaller than the outer diameter of the wave spring, so that the wave spring is directly clamped in the clamping groove, and even if the tire layer falls off, the wave spring will not fall out.

[0032] The hub 3 in the embodiment has 24 evenly distributed clamping grooves, each clamping groove has an included angle of about 12.8°, so that the wave springs 2 are uniformly distributed and the deformation degree of each wave spring 2 can be kept consistent when bearing. The wave spring 2 is fixed by three connecting points on both sides of the clamping groove, further strengthening the reliability and firmness of the wheel, as shown in Figure 4

[0033] Figure 5 The outer tire layer 1 can be made of different materials according to the road conditions. Rubber material can be used on flat road, and metal screen mesh and other materials can be used on sand and dust road. The outer tire layer 1 tightly wraps the wave spring 2, so that the wheel has good integrity, and the passing capacity and reliability of the wheel are improved.

[0034] The utility model discloses although the above-mentioned preferable embodiment is disclosed, but it is not used to limit the utility model, any person skilled in the art can utilize the method and technical content disclosed above to make possible change and modification to the technical scheme of the utility model without departing from the spirit and scope of the utility model, therefore, any simple modification, equivalent change and modification made to the above-mentioned embodiment according to the technical essence of the utility model, all belong to the protection scope of the technical scheme of the utility model. The contents not described in detail in the utility model specification are the known technology of the person skilled in the art.​

Claims

1. A non-pneumatic wheel using a wave spring as a support, characterized in that, The wheel includes an outer tire layer, a wave spring, and a hub, wherein: The hub is located at the center of the wheel, and its outer edge is provided with evenly distributed slots. The wave spring is placed in the slots and is evenly distributed along the circumference. The outer tire layer is tightly fitted around the outside of the wheel hub, and the inner surface of the outer tire layer is in direct contact with the wave spring and connected to the evenly distributed wave spring.

2. The non-pneumatic wheel according to claim 1, characterized in that, The rigidity and external dimensions of the slot are set according to the load of the wheel and the requirements of the road surface, so that the wave springs are evenly distributed at all times during the wheel's movement.

3. The non-pneumatic wheel according to claim 2, characterized in that, The greater the load on the wheel, the smaller the opening angle of the slot and the more slots there are, and a high-stiffness wave spring should be selected.

4. The non-pneumatic wheel according to claim 1, characterized in that, The outer surface of the tire layer is provided with protrusions that directly contact the ground to increase the coefficient of friction.

5. The non-pneumatic wheel according to claim 4, characterized in that, The protrusions on the outer surface of the outer tire layer are rounded rectangles or circles.

6. The non-pneumatic wheel according to claim 1, characterized in that, The wave spring is fixedly connected to the outer tire layer and the slot.

7. The non-pneumatic wheel according to claim 1, characterized in that, The wave spring is fixedly connected to the outer tire layer and the wheel hub through multiple connection points.

8. The non-pneumatic wheel according to claim 7, characterized in that, The number of connection points is set according to the width of the wheel, and multiple connection points are used to ensure that the wheel as a whole has good strength and rigidity.

9. The non-pneumatic wheel according to any one of claims 1 to 8, characterized in that, The axis of the wave spring is aligned with the axis of the outer tire layer and the axis of the wheel hub.

10. The non-pneumatic wheel according to claim 9, characterized in that, Adjusting the angle between the wave spring axis and the outer tire axis makes the radial load of the wheel more balanced, so as to meet the actual road use requirements.

Images