Automobile hub damping device

Abstract

The utility model relates to an automobile hub damping device which comprises a rim, a positioning ring is connected to the outer side of a spoke plate of the rim, a plurality of cavity pipes are connected to the peripheral side of the positioning ring, first-stage damping parts are arranged in the cavity pipes, and second-stage damping parts are arranged at the ends of the cavity pipes. The first-stage damping piece comprises an internal thread part, an external thread part, a supporting rod and a positioning hole sound insulation pad. The utility model relates to the technical field of hub damping. When the automobile hub damping device is used, under the cooperation of the first-stage damping piece and the second-stage damping piece, the stability of a tire made of the hub in the using process is improved, vibration borne by a bumpy road section is reduced, meanwhile, noise generated in the driving process can be reduced, and the service life of the tire is prolonged. And the driving comfort is improved while the stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of wheel hub damping, especially to an automobile wheel hub damping device. BACKGROUND

[0002] The wheel hub is a cylindrical metal part that supports the tire from the inside and is centered on the axle. It is also called a wheel rim, a steel ring, a hub, and a tire bell. The wheel hub is various in diameter, width, molding method, and material; the automobile wheel hub is a key part connecting the wheel and the automobile, can effectively support the overall weight of the automobile, and ensures the stability of the vehicle. As the part for installing the axle, it is used for supporting the tire and transmitting the weight of the vehicle to the road surface; the design of the wheel hub enables the tire to maintain good contact with the road surface and provides excellent grip performance, which is crucial for the controllability and driving stability of the vehicle.

[0003] In the prior art, when the automobile travels on a bumpy road section, the tire contacts the ground and travels on the bumpy road section, at this time, the wheel hub will be subjected to the vibration of traveling on the bumpy road section, and long-time travel will increase the wear of the wheel hub, and the continuous vibration will also produce a large noise, thereby affecting the driving comfort. SUMMARY

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an automobile wheel hub damping device to solve the technical problems mentioned in the background.

[0005] The above technical purpose of the utility model is achieved by the following technical scheme:

[0006] An automobile wheel hub damping device, comprising a wheel rim, a positioning ring connected to the outer side of the spoke plate of the wheel rim, a plurality of cavity tubes connected to the outer circumferential side of the positioning ring, a primary damping member arranged in the cavity tube, and a secondary damping member arranged at the end of the cavity tube.

[0007] The primary damping member comprises an inner thread part, an outer thread part, a support rod, a positioning hole, and a sound insulation pad, the inner thread part is arranged at the inner circumferential end of the cavity tube, the support rod is slidingly connected to the outer circumferential side of the support rod, the support rod is arranged in a dynamic seal in the cavity tube, the outer thread part is arranged at the outer circumferential side of the support rod, the positioning hole is arranged at the outer circumferential side of the wheel rim, the end of the support rod passes through the positioning hole and extends to the outer side of the wheel rim, the positioning hole and the support rod are arranged in a dynamic seal, the sound insulation pad is fixedly connected to the end of the support rod, the sound insulation pad is arranged in an arc shape, and the side of the sound insulation pad close to the support rod is attached to the outer circumferential side of the wheel rim.

[0008] The utility model discloses in a preferable example can be further configured as: the sound insulation pad is composed of sound insulation cotton, rubber soft pad and steel band, the rubber soft pad is wrapped in the outside of steel band, the sound insulation cotton is wrapped in the outside of rubber soft pad, and the end of support rod passes through sound insulation cotton and rubber soft pad and is connected with steel band.

[0009] The utility model discloses in a preferable example can be further configured as: the secondary damping part includes a round hole, the round hole is set up in the outer circumferential side of the positioning ring, and with the position corresponding of the cavity pipe, the buffer pad is fixedly connected in the round hole.

[0010] The utility model discloses in a preferable example can be further configured as: the buffer pad is set up in the barrel shape, and the bottom end of the cavity pipe is wrapped, the buffer pad is made of rubber material, and the buffer pad is filled with sound insulation cotton.

[0011] The utility model discloses in a preferable example can be further configured as: the buffer pad's inner side wall and the cavity pipe between leave the gap, and the buffer pad's inner wall and the cavity pipe between the connection has auxiliary spring.

[0012] Summarized above, the utility model discloses at least one of following beneficial technical effect:

[0013] 1. The automobile wheel hub damping device can improve the stability of the tire made of the wheel hub when using, reduce the vibration received by the bumping section, and slow down the noise generated during driving, thereby improving the stability and driving comfort.

[0014] 2. The automobile wheel hub damping device is composed of sound insulation cotton, rubber pad and steel band. The steel band is used to improve the rigidity of the sound insulation pad and avoid deformation after long-term use. The rubber pad provides certain toughness and restores to the original state after being extruded. The sound insulation cotton is used to absorb noise and slow down the emission of noise, thereby buffering and damping with the air pressure in the support rod and the cavity tube, improving the practicality.

[0015] 3. The automobile wheel hub damping device is provided with a round hole for installing a corresponding buffer pad. The buffer pad is used to further buffer the cavity tube and further absorb the vibration during tire driving, reduce the damage to the wheel hub, and improve the service life of the wheel hub.

[0016] 4. The automobile wheel hub damping device is provided with a buffer pad for rotating connection with the cavity tube. The rubber material buffer pad reduces the noise generated by the wheel hub vibration, ensures the stability of the wheel hub, and improves the driving comfort.

[0017] 5. The automobile wheel hub damping device, the auxiliary spring is arranged for further buffering between the cavity pipe and the inner wall of the buffer pad, can cooperate with the primary damping member to slow down the vibration conducted by the tire, improves the stability of the tire in the driving process, further improves the stability of the wheel hub in the driving process. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0019] Figure 1 It is a whole structure schematic view of the automobile wheel hub damping device of the present application.

[0020] Figure 2 It is a structure schematic view of the primary damping member of the automobile wheel hub damping device of the present application.

[0021] Figure 3 It is a cavity pipe cross section structure schematic view of the automobile wheel hub damping device of the present application.

[0022] Figure 4 It is a sound insulation pad cross section structure schematic view of the automobile wheel hub damping device of the present application.

[0023] In the figure, 1, wheel rim; 2, positioning ring; 3, cavity pipe; 4, primary damping member; 5, secondary damping member; 6, internal thread part; 7, external thread part; 8, support rod; 9, positioning hole; 10, sound insulation pad; 11, sound insulation cotton; 12, rubber cushion; 13, steel belt; 14, round hole; 15, buffer pad; 16, sound insulation cotton; 17, auxiliary spring. DETAILED DESCRIPTION

[0024] The present application will be further described in detail below in combination with the drawings.

[0025] Embodiment:

[0026] Reference Figures 1-4 The automobile wheel hub damping device disclosed by the present application comprises a wheel rim 1, the outer side of the spoke plate of the wheel rim 1 is connected with a positioning ring 2, the outer circumferential side of the positioning ring 2 is connected with a plurality of cavity pipes 3, a primary damping member 4 is arranged in the cavity pipe 3, and a secondary damping member 5 is arranged at the end of the cavity pipe 3.

[0027] The primary damping part 4 comprises an inner threaded part 6, an outer threaded part 7, a supporting rod 8, a positioning hole 9 and a sound insulation pad 10, the inner threaded part 6 is arranged at the inner circumferential side end of the cavity pipe 3, the supporting rod 8 is slidingly connected to the outer circumferential side of the supporting rod 8, the supporting rod 8 is arranged in a dynamic sealing mode in the cavity pipe 3, the outer threaded part 7 is arranged at the outer circumferential side of the supporting rod 8, the positioning hole 9 is arranged at the outer circumferential side of the wheel rim 1, the end of the supporting rod 8 penetrates through the positioning hole 9 and extends to the outer side of the wheel rim 1, the positioning hole 9 and the supporting rod 8 are arranged in a dynamic sealing mode, the sound insulation pad 10 is fixedly connected to the end of the supporting rod 8, the sound insulation pad 10 is arranged in an arc shape, and the side, close to the supporting rod 8, of the sound insulation pad 10 is attached to the outer circumferential side of the wheel rim 1.

[0028] In use, the tire is sleeved on the outer circumferential side of the wheel rim 1 and is sealed or fixed, then the cavity pipe 3 is rotated, the inner threaded part 6 is separated from the outer threaded part 7, the initial state of the cavity pipe 3 is extruded, the air pressure pushes the supporting rod 8 to move and drives the sound insulation pad 10 to move away from the outer circumferential side of the wheel rim 1, then the sound insulation pad 10 abuts against the circumferential wall in the tire, and the installation of the hub damping is completed.

[0029] When the tire is in contact with the bumpy ground during the driving of the vehicle, the part of the tire that is in contact with the bumpy ground is extruded and pushes the sound insulation pad 10, the tire is extruded after being bumpy during driving, the supporting rod 8 is extruded, the air pressure in the cavity pipe 3 is buffered, the sound insulation pad 10 absorbs a certain amount of noise, the noise during the driving of the vehicle is reduced, the anti-vibration performance of the hub is improved, the loss of the hub is reduced, and the noise caused by the driving of the tire is reduced.

[0030] In a further preferable embodiment of the utility model, as shown in Figure 4 The sound insulation pad 10 is composed of sound insulation cotton 11, rubber soft pad 12 and steel belt 13, the rubber soft pad 12 is wrapped on the outer side of the steel belt 13, the sound insulation cotton 11 is wrapped on the outer side of the rubber soft pad 12, and the end of the supporting rod 8 penetrates through the sound insulation cotton 11 and the rubber soft pad 12 and is connected with the steel belt 13.

[0031] In the embodiment, the sound insulation pad 10 is composed of sound insulation cotton 11, rubber soft pad 12 and steel belt 13, the steel belt 13 is used to improve the rigidity of the sound insulation pad 10 and avoid the problem of deformation after long-time use, the rubber soft pad 12 provides certain toughness and enables the sound insulation pad 10 to restore to the original state after being extruded, the sound insulation cotton 11 is additionally arranged to absorb noise and reduce the emission of noise, thereby buffering and damping in cooperation with the air pressure in the cavity pipe 3 and the supporting rod 8, and the practicability is improved.

[0032] In a further preferable embodiment of the utility model, as shown inFigure 3 As shown in the figure, the secondary damping member 5 comprises a round hole 14, which is arranged on the outer circumferential side of the positioning ring 2 and corresponds to the position of the cavity tube 3, and a buffer pad 15 is fixedly connected in the round hole 14.

[0033] In the embodiment, the round hole 14 is arranged for mounting the corresponding buffer pad 15, and the buffer pad 15 is arranged for further buffering the cavity tube 3, further absorbing the vibration when the tire is running, reducing the damage to the hub, and prolonging the service life of the hub.

[0034] In the further preferable embodiment of the utility model, as shown in the figure, Figure 3 As shown in the figure, the buffer pad 15 is arranged in a cylindrical shape and wraps the bottom end of the cavity tube 3, the buffer pad 15 is made of rubber material, and the buffer pad 15 is further filled with sound insulation cotton 16.

[0035] In the embodiment, the buffer pad 15 is arranged for rotating connection with the cavity tube 3, wherein the vibration of the hub with the rubber material buffer pad 15 is further reduced by the sound insulation cotton 16, which guarantees the stability of the hub itself and improves the driving comfort.

[0036] In the further preferable embodiment of the utility model, as shown in the figure, Figure 3 As shown in the figure, a gap is left between the inner side wall of the buffer pad 15 and the cavity tube 3, and an auxiliary spring 17 is connected between the inner wall of the buffer pad 15 and the cavity tube 3.

[0037] In the embodiment, the auxiliary spring 17 is arranged for further buffering between the cavity tube 3 and the inner wall of the buffer pad 15, which can cooperate with the primary damping member 4 to reduce the vibration transmitted by the tire, improve the stability of the tire during running, and further improve the stability of the hub during running.

[0038] The embodiments of the specific embodiment are preferable embodiments of the utility model, and are not limited to the protection scope of the utility model, so that: any equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A damping device for a vehicle wheel hub, comprising a wheel rim (1), characterized in that The spoke outer side of the rim (1) is connected with a positioning ring (2), the outer circumferential side of the positioning ring (2) is connected with a plurality of cavity tubes (3), a first level damping member (4) is arranged in the cavity tube (3), and the end of the cavity tube (3) is provided with a second level damping member (5); The first level damping member (4) comprises an inner threaded part (6), an outer threaded part (7), a support rod (8), a positioning hole (9) and a sound insulation pad (10), the inner threaded part (6) is opened at the inner circumferential end of the cavity tube (3), the support rod (8) is slidingly connected to the outer circumferential side of the support rod (8), the support rod (8) is dynamically sealed in the cavity tube (3), the outer threaded part (7) is opened at the outer circumferential side of the support rod (8), the positioning hole (9) is opened at the outer circumferential side of the rim (1), the end of the support rod (8) passes through the positioning hole (9) and extends to the outside of the rim (1), the positioning hole (9) and the support rod (8) are dynamically sealed, and the sound insulation pad (10) is fixedly connected to the end of the support rod (8), the sound insulation pad (10) is arranged in an arc shape, and the side close to the support rod (8) of the sound insulation pad (10) is attached to the outer circumferential side of the rim (1).

2. The automobile wheel hub damping device according to claim 1, characterized in that, The sound insulation pad (10) is composed of sound insulation cotton (11), a rubber soft pad (12) and a steel belt (13), the rubber soft pad (12) is wrapped on the outer side of the steel belt (13), the sound insulation cotton (11) is wrapped on the outer side of the rubber soft pad (12), and the end of the support rod (8) passes through the sound insulation cotton (11) and the rubber soft pad (12) and is connected with the steel belt (13).

3. The automotive wheel hub damper device of claim 2, wherein The second level damping member (5) comprises a circular hole (14), the circular hole (14) is opened at the outer circumferential side of the positioning ring (2) and corresponds to the position of the cavity tube (3), and the circular hole (14) is fixedly connected with a buffer pad (15) inside.

4. The automotive wheel hub damper device of claim 3, wherein The buffer pad (15) is arranged in a cylindrical shape and wraps the bottom end of the cavity tube (3), the buffer pad (15) is made of rubber material, and the buffer pad (15) is further filled with sound insulation cotton (16).

5. The automotive wheel hub vibration damping device of claim 4, wherein The inner side wall of the buffer pad (15) and the cavity tube (3) are left with a gap, and the inner wall of the buffer pad (15) and the cavity tube (3) are connected with an auxiliary spring (17).

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