Automobile hub with shock absorption and noise reduction functions

Abstract

The utility model discloses an automobile hub with shock absorption and noise reduction functions, which comprises a central hub, a spoke is fixedly arranged on the surface of the central hub, a rim is fixedly arranged at one end of the spoke, a mounting cavity is formed in the top surface of the spoke, a high-damping pad is fixedly arranged on one side, close to the rim, of the inner wall of the mounting cavity, and the high-damping pad is fixedly arranged on the other side of the inner wall of the mounting cavity. A damping mechanism is fixedly arranged on one side of the high-damping pad, and a high-strength pad is fixedly arranged at one end of the damping mechanism. According to the automobile hub with the shock absorption and noise reduction functions, through the arrangement of a high-damping pad, a shock absorption mechanism and a high-strength pad, the high-damping pad can absorb low-frequency vibration, when vibration is large, a shock absorption spring and a damper deform at the same time, the shock absorption spring absorbs vibration energy, the damper consumes energy stored by the shock absorption spring, and the high-strength pad can rapidly attenuate high-frequency impact; the graded damping effect on the automobile hub is achieved, the damping effect is better, energy is dissipated in a graded mode, and burdens of all parts are reduced.

Description

Technical Field

[0001] This utility model relates to the field of automotive wheel hub technology, specifically to an automotive wheel hub with shock absorption and noise reduction functions. Background Technology

[0002] A car wheel hub is the connecting component between a car tire and an axle; it is a crucial component that supports the tire and transmits power to the wheel. The design and quality of the wheel hub have a significant impact on a car's driving performance, safety, and comfort.

[0003] A car wheel hub with shock absorption function is disclosed in announcement number CN207842517U. Although the car wheel hub with shock absorption function can achieve good shock absorption performance by setting shock absorption springs in the shock absorption layer, it can prevent damage to the chassis of the car when climbing hills. By setting reinforcing bars, the structure of the device can be made more stable. By setting calipers, it can quickly execute braking commands. When installing calipers, the housing is clamped into the annular groove. The threaded column is rotated by the handle, so that the electromagnet is pressed against the annular groove. Pressing the button opens the electromagnet, so that the electromagnet and the annular groove are tightly connected. The threaded column is then fixed by the nut. It is detachable. Simply loosen the nut and press the button to demagnetize the electromagnet, and the caliper can be removed. This design makes the caliper easy to replace and maintain.

[0004] However, this type of car wheel hub with shock absorption function has the following disadvantages: it is not convenient to perform graded shock absorption on the car wheel hub, and only single shock absorption is achieved through shock absorption springs, which puts a greater burden on the shock absorption springs and results in a poorer shock absorption effect compared to multi-stage shock absorption. Utility Model Content

[0005] The technical problem to be solved by this utility model is as follows: it is not convenient to perform graded shock absorption on automobile wheel hubs. Single shock absorption is achieved only through shock absorber springs, which puts a heavy burden on the shock absorber springs and results in poor shock absorption effect compared to multi-stage shock absorption.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A car wheel hub with vibration damping and noise reduction functions includes a center wheel hub, a spoke fixedly disposed on the surface of the center wheel hub, a rim fixedly disposed at one end of the spokes, a mounting cavity formed on the top surface of the spokes, a high-damping pad fixedly disposed on the inner wall of the mounting cavity near the rim, a vibration damping mechanism fixedly disposed on one side of the high-damping pad, a high-strength pad fixedly disposed at one end of the vibration damping mechanism, a honeycomb aluminum layer fixedly disposed on the inner side of the flange of the rim, and a noise reduction component fixedly disposed on the surface of the honeycomb aluminum layer.

[0008] As a further embodiment of this utility model: the shock absorption mechanism includes a shock absorption spring and a damper. The shock absorption spring is fixedly disposed on one side of the high damping pad, and the damper is sleeved inside the shock absorption spring. The shock absorption mechanism is used to absorb shocks from the car wheel hub.

[0009] As a further embodiment of this utility model: one end of the damper is fixedly connected to the high-damping pad, and the other end of both the shock-absorbing spring and the damper is fixedly connected to the high-strength pad. The high-strength pad is fixedly disposed on the side of the mounting cavity away from the high-damping pad, and the high-damping pad plays a damping role.

[0010] As a further embodiment of this utility model: the noise reduction component includes a polyurethane layer and an EPDM foam layer. The polyurethane layer is fixedly disposed on the surface of the honeycomb aluminum layer, and the EPDM foam layer is fixedly disposed on the surface of the polyurethane layer. The EPDM foam layer can resist the corrosion of rainwater and de-icing agents and absorb high-frequency noise generated by tire friction.

[0011] As a further embodiment of this utility model: the number of mounting cavities and shock absorption mechanisms are all four sets, and the four sets of mounting cavities and shock absorption mechanisms are arranged in a circular array. The mounting cavities are used to install the shock absorption mechanisms.

[0012] As a further embodiment of this utility model: the number of the honeycomb aluminum layer and the noise reduction component are both two sets, and the two sets of the honeycomb aluminum layer and the noise reduction component are symmetrically arranged along the axial direction, with the honeycomb aluminum layer used to provide support for the noise reduction component.

[0013] As a further embodiment of this invention: the high-damping pad is made of silicone-graphene composite material, and the high-strength pad is made of aramid fiber pad. The high-strength pad can quickly attenuate high-frequency impacts.

[0014] The beneficial effects of this utility model are:

[0015] 1. By setting up high-damping pads, shock absorption mechanisms, and high-strength pads, the high-damping pads can absorb low-frequency vibrations. When the vibration is large, the shock absorption springs and dampers deform simultaneously. The shock absorption springs absorb the vibration energy, the dampers consume the energy stored in the shock absorption springs, and the high-strength pads can quickly attenuate high-frequency impacts. This achieves the effect of graded shock absorption for car wheel hubs, resulting in better shock absorption and graded energy dissipation, reducing the burden on various components.

[0016] 2. By setting up noise reduction components, noise reduction components are set at the contact point between the wheel rim and the tire. The EPDM foam layer can resist rainwater and absorb high-frequency noise generated by tire friction. The polyurethane layer can suppress low-frequency structural vibration transmission. The honeycomb aluminum layer is used to provide rigid support, ensure the stability of the wheel rim structure, and prevent the noise reduction components from deforming and failing. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the shock absorption mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the noise reduction component structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the rim structure of this utility model.

[0023] In the diagram: 1. Center hub; 2. Spokes; 3. Rim; 4. Mounting cavity; 5. High damping pad; 6. Shock absorption mechanism; 601. Shock absorption spring; 602. Damper; 7. High strength pad; 8. Honeycomb aluminum layer; 9. Noise reduction component; 901. Polyurethane layer; 902. EPDM foam layer. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1-5 As shown, a car wheel hub with vibration damping and noise reduction function includes a center wheel hub 1, a spoke 2 fixedly disposed on the surface of the center wheel hub 1, a rim 3 fixedly disposed at one end of the spoke 2, an installation cavity 4 opened on the top surface of the spoke 2, a high damping pad 5 fixedly disposed on the inner wall of the installation cavity 4 near the rim 3, a shock absorption mechanism 6 fixedly disposed on one side of the high damping pad 5, and a high strength pad 7 fixedly disposed at one end of the shock absorption mechanism 6. Through the arrangement of the high damping pad 5, the shock absorption mechanism 6 and the high strength pad 7, the high damping pad 5 can absorb low frequency vibration. When the vibration is large, the shock absorption spring 601 and the damper 602 deform simultaneously. The shock absorption spring 601 absorbs the vibration energy, the damper 602 consumes the energy stored in the shock absorption spring 601, and the high strength pad 7 can quickly attenuate high frequency impact, achieving the effect of graded vibration damping of the car wheel hub, with better vibration damping effect and graded energy dissipation, reducing the burden on each component;

[0026] A honeycomb aluminum layer 8 is fixedly provided on the inner side of the flange of the rim 3, and a noise reduction component 9 is fixedly provided on the surface of the honeycomb aluminum layer 8. With the setting of the noise reduction component 9, the EPDM foam layer 902 can resist rainwater and absorb high-frequency noise generated by tire friction. The polyurethane layer 901 can suppress low-frequency structural vibration. The honeycomb aluminum layer 8 is used to provide rigid support to ensure the structural stability of the rim 3 and prevent the noise reduction component 9 from deforming and failing.

[0027] like Figure 2 As shown, the damping mechanism 6 includes a damping spring 601 and a damper 602. The damping spring 601 is fixedly installed on one side of the high damping pad 5, and the damper 602 is sleeved inside the damping spring 601.

[0028] The shock absorption mechanism 6 is designed to reduce vibrations in the car wheel hubs.

[0029] like Figure 4 As shown, one end of the damper 602 is fixedly connected to the high damping pad 5, and the other end of the shock absorber spring 601 and the damper 602 are both fixedly connected to the high strength pad 7. The high strength pad 7 is fixedly installed on the side of the mounting cavity 4 away from the high damping pad 5.

[0030] The damper 602 serves to dissipate the energy stored in the shock-absorbing spring 601.

[0031] like Figure 3 As shown, the noise reduction component 9 includes a polyurethane layer 901 and an EPDM foam layer 902. The polyurethane layer 901 is fixedly disposed on the surface of the honeycomb aluminum layer 8, and the EPDM foam layer 902 is fixedly disposed on the surface of the polyurethane layer 901.

[0032] With the setting of noise reduction component 9, the rim 3 is set at the contact point with the tire. The EPDM foam layer 902 can resist rainwater and absorb high-frequency noise generated by tire friction. The polyurethane layer 901 can suppress low-frequency structural vibration.

[0033] like Figure 1 As shown, there are four sets of mounting cavities 4 and four sets of shock-absorbing mechanisms 6, which are arranged in a ring array.

[0034] The cavity 4 is designed to house the shock-absorbing mechanism 6.

[0035] like Figure 4 As shown, there are two sets of both the honeycomb aluminum layer 8 and the noise reduction component 9, and the two sets of honeycomb aluminum layer 8 and noise reduction component 9 are arranged symmetrically along the axial direction.

[0036] The honeycomb aluminum layer 8 provides rigid support to ensure the structural stability of the rim 3 and prevent the noise reduction component 9 from deforming and failing.

[0037] like Figure 2 As shown, the high-damping pad 5 is made of silicone-graphene composite material, and the high-strength pad 7 is made of aramid fiber gasket.

[0038] By setting the high-damping pad 5, the high-damping pad 5 can absorb low-frequency vibrations, and by setting the high-strength pad 7, the high-strength pad 7 can quickly attenuate high-frequency impacts.

[0039] The working principle of this utility model is as follows: a noise reduction component 9 is set at the contact point between the rim 3 and the tire. The EPDM foam layer 902 can resist rainwater and absorb high-frequency noise generated by tire friction. The polyurethane layer 901 can suppress low-frequency structural vibration. The honeycomb aluminum layer 8 is used to provide rigid support, ensure the structural stability of the rim 3, and prevent the noise reduction component 9 from deforming and failing.

[0040] The high-damping pad 5 can absorb low-frequency vibrations. When the vibration is large, the damping spring 601 and the damper 602 deform simultaneously. The damping spring 601 absorbs the vibration energy, and the damper 602 consumes the energy stored in the damping spring 601. The high-strength pad 7 can quickly attenuate high-frequency impacts, achieving the effect of graded vibration damping of the car wheel hub. The vibration damping effect is better, and the energy is dissipated in stages, reducing the burden on each component.

[0041] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0042] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A car wheel hub with shock absorption and noise reduction function, comprising a center wheel hub (1), characterized in that: The surface of the center hub (1) is fixedly provided with a spoke (2), one end of the spoke (2) is fixedly provided with a rim (3), the top surface of the spoke (2) is provided with a mounting cavity (4), the inner wall of the mounting cavity (4) is fixedly provided with a high-damping pad (5) near one side of the rim (3), one side of the high-damping pad (5) is fixedly provided with a damping mechanism (6), one end of the damping mechanism (6) is fixedly provided with a high-strength pad (7), the inner side of the flange of the rim (3) is fixedly provided with a honeycomb aluminum layer (8), and the surface of the honeycomb aluminum layer (8) is fixedly provided with a noise reduction assembly (9).

2. The automobile wheel hub with shock absorption and noise reduction function according to claim 1, characterized in that, The damping mechanism (6) comprises a damping spring (601) and a damper (602), the damping spring (601) is fixedly arranged on one side of the high-damping pad (5), and the damper (602) is sleeved in the damping spring (601).

3. The automobile wheel hub with shock absorption and noise reduction function according to claim 2, characterized in that, One end of the damper (602) is fixedly connected with the high-damping pad (5), and the other end of the damping spring (601) and the damper (602) is fixedly connected with the high-strength pad (7), and the high-strength pad (7) is fixedly arranged on the side of the mounting cavity (4) away from the high-damping pad (5).

4. The automobile wheel hub with shock absorption and noise reduction function according to claim 1, characterized in that, The noise reduction assembly (9) comprises a polyurethane layer (901) and an EPDM foaming layer (902), the polyurethane layer (901) is fixedly arranged on the surface of the honeycomb aluminum layer (8), and the EPDM foaming layer (902) is fixedly arranged on the surface of the polyurethane layer (901).

5. The automobile wheel hub with shock absorption and noise reduction function according to claim 1, characterized in that, The number of the mounting cavities (4) and the damping mechanisms (6) is four, and the four mounting cavities (4) and the four damping mechanisms (6) are arranged in an annular array.

6. The automobile wheel hub with shock absorption and noise reduction function according to claim 1, characterized in that, The number of the honeycomb aluminum layers (8) and the noise reduction assemblies (9) is two, and the two honeycomb aluminum layers (8) and the two noise reduction assemblies (9) are symmetrically arranged along the axial direction.

7. The automobile wheel hub with shock absorption and noise reduction function according to claim 1, characterized in that, The material of the high-damping pad (5) is a silica gel-graphene composite material, and the material of the high-strength pad (7) is an aramid fiber gasket.

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