CN111572512B

CN111572512B - Wheel hub with automatic air cooling function

Info

Publication number: CN111572512B
Application number: CN202010441046.2A
Authority: CN
Inventors: 吴永强
Original assignee: Fujian Shenlika Aluminium Industry Development Co ltd
Current assignee: Fujian Shenlika Aluminium Industry Development Co ltd
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2021-09-07
Anticipated expiration: 2040-05-22
Also published as: CN111572512A

Abstract

The invention discloses a wheel hub with automatic air cooling, which comprises a wheel hub main body and a heat dissipation device for dissipating heat of the wheel hub main body; the brake disc heat dissipation device comprises a heat dissipation main body for blowing and dissipating heat of the brake disc and an inertia wheel disc which is coaxially driven by a wheel shaft of the hub and drives the heat dissipation main body to rotate; the brake disc heat dissipation main body comprises a heat dissipation fan for supplying air to the heat dissipation body and the heat dissipation body for dissipating heat of the brake disc. The brake disc heat dissipation device is fixedly connected with a wheel axle through a brake disc one-way driving wheel, a brake disc heat dissipation body is fixedly connected to a frame, when a vehicle brakes suddenly, an inertia disc main body continues to rotate at a high speed under the action of inertia force, a heat dissipation fan located on the heat dissipation body is driven by external teeth of the inertia disc main body to blow air, the heat dissipation fan blows air to an inner air cavity in the heat dissipation body, air pressure in the inner air cavity is increased, high-speed air flows blow air towards an air spraying hole or an air outlet annular opening, and the brake disc is cooled.

Description

Wheel hub with automatic air cooling function

Technical Field

The invention relates to the field of automobile wheel hubs, in particular to a wheel hub with automatic air cooling function.

Background

The automobile hub is an important component on an automobile, and is used for mounting an automobile tire and supporting the weight of the whole automobile, and the brake disc is arranged in the automobile hub; traditional brake disc is at the emergency braking in-process, and it is cold mechanism to help the brake disc cooling not to set up.

In view of the above, the applicant has made an intensive study on the above-mentioned defects in the prior art, and has made this invention.

Disclosure of Invention

The invention mainly aims to provide an automatic air-cooled wheel hub, which can cool a brake disc during braking and improve the braking performance.

In order to achieve the above purpose, the solution of the invention is:

a wheel hub with automatic air cooling comprises a wheel hub main body and a heat dissipation device for dissipating heat of the wheel hub main body; the heat dissipation device comprises a heat dissipation main body for blowing and dissipating heat of the brake disc and an inertia wheel disc which is coaxially driven by the wheel shaft of the hub and drives the heat dissipation main body to rotate; the heat dissipation main body comprises a heat dissipation fan for supplying air to the heat dissipation body and a heat dissipation body for dissipating heat of the brake disc.

Further, the heat dissipation fan has a gear driven by the inertia wheel.

Further, the heat radiation body is provided with a first side surface facing the brake disc and a second side surface facing the inertia wheel disc; an inner air cavity is formed in the heat radiation body, and an air blowing port which faces the brake disc and is communicated with the air cavity is formed in the first side face.

Further, the second side surface is provided with a mounting opening for mounting the heat radiation fan, and the mounting opening is communicated with the inner air cavity.

Further, the air blowing port comprises an annular air outlet annular port.

Further, the air outlet annular port and the wheel shaft are coaxially arranged.

Further, the air outlet annular port is in a closed loop form.

Further, the air blowing port includes a plurality of air blowing holes.

Furthermore, the air injection holes are arranged around the wheel shaft in an arrayed mode.

Furthermore, the air injection holes are uniformly arranged around the wheel axle.

Further, the inertia wheel disc comprises an inertia disc main body positioned at the outer ring and a one-way driving wheel positioned at the inner ring and driving the inertia disc main body to rotate in one way.

Furthermore, the inner side surface of the inner ring of the inertia disc main body is provided with a ratchet wheel which is driven by the unidirectional driving wheel when the unidirectional driving wheel rotates anticlockwise.

Furthermore, the one-way driving wheel is provided with a connecting hole for the wheel shaft to pass through and fixedly connected with the wheel shaft.

Furthermore, the outer side surface of the outer ring of the one-way driving wheel is provided with a pawl matched with the ratchet wheel, an arc notch rotationally connected with the pawl and a yielding notch for yielding the pawl.

Furthermore, an inertia convex disc for driving the heat dissipation main body to rotate extends out of the surface of the inertia disc main body.

Further, the outer side surface of the outer ring of the inertia convex disc is provided with outer teeth meshed with the gear.

Furthermore, a bearing limit lug for a wheel axle to pass through extends from the other surface of the inertia disc main body.

Furthermore, the bearing limit bump comprises a first bearing block connected to the inertia disc main body and a second bearing block detachably connected to the first bearing block; the first bearing block and the second bearing block are connected together to form a limiting groove for embedding the convex ring on the wheel axle.

Further, the hub body, the inertia wheel disc, the heat dissipation body and the brake disc are sequentially arranged towards the middle of the axis of the wheel shaft.

After the structure is adopted, the wheel hub with automatic air cooling, disclosed by the invention, drives the heat dissipation main body to perform air blowing heat dissipation on the brake disc through the inertia wheel disc, so that the brake disc is cooled during braking, and the braking performance is improved;

the one-way driving wheel is fixedly connected with the wheel axle, the heat radiation body is fixedly connected to the frame, when the vehicle brakes suddenly, the brake disc is tightly held by a band-type brake, the rotating speed of the wheel axle is reduced at a high speed, the rotating speed of the one-way driving wheel is reduced along with the reduction of the rotating speed of the wheel axle, the inertia disc main body continues to rotate at a high speed under the action of inertia force, the external teeth of the inertia disc main body drive the cooling fan located on the heat radiation body to blow air, the cooling fan blows air to the inner air cavity in the heat radiation body, the air pressure in the inner air cavity is increased, and high-speed air flows blow out towards the air injection holes or the air outlet annular opening to radiate the brake disc.

Drawings

Fig. 1 is an exploded view of a wheel hub with automatic air cooling according to the present invention.

Fig. 2 is a schematic perspective view of the inertia wheel disc of the present invention.

Figure 3 is a cross-sectional view of an inertia wheel disc of the present invention.

Fig. 4 is a schematic perspective view of the bearing limit bump on the inertia wheel disc according to the present invention.

Fig. 5 is a schematic perspective view of a first embodiment of a heat sink according to the present invention.

Fig. 6 is a schematic perspective view of a second embodiment of a heat sink according to the present invention.

Fig. 7 is a rear view of the heat radiator of the present invention.

Fig. 8 is a cross-sectional view of a heat sink of the present invention.

Fig. 9 is a schematic perspective view of a heat dissipation fan according to the present invention.

In the figure: a hub main body 1; an inertia wheel disc 2; an inertia disk main body 21; an inertial cam 211; the outer teeth 2111; a load-bearing limit bump 212; a first bearing block 2121; a second bearing block 2122; a limit groove 2123; a ratchet 213; a one-way drive wheel 22; a pawl 221; a heat dissipating body 3; a heat radiator 31; an inner air cavity 311; the air blast holes 312; an outlet annular port 313; a mounting opening 314; a heat radiation fan 32; a gear 321; a brake disc 4.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.

As shown in fig. 1 to 9, the wheel hub with automatic air cooling according to the present invention includes a hub body 1, and a heat sink for dissipating heat from the hub body 1; the heat dissipation device comprises a heat dissipation main body 3 for blowing and dissipating heat of the brake disc 4 and an inertia wheel disc 2 which is coaxially driven by a wheel shaft of the hub and drives the heat dissipation main body 3 to rotate; the heat radiation body 3 includes a heat radiation fan 32 for supplying air to the heat radiation body 31 and the heat radiation body 31 for radiating heat of the brake disc 4. This heat dissipation main part 3 fixed connection is on the frame, and this inertia dish main part 21 and one-way drive wheel 22 are the aluminum alloy material, and the quality is lighter, can not let the too much gravity of wheel bearing load. The one-way driving wheel 22 drives the inertia disc main body 21 to rotate, and the inertia disc main body 21 drives the heat radiation fan 32 to rotate, so that the heat radiation body 31 radiates the brake disc 4; when emergency braking, the inertia disc main body 21 continues to rotate under the action of inertia, so that the heat dissipation main body 3 continues to be driven to dissipate heat of the brake disc 4 in the emergency braking process.

Preferably, the heat dissipation fan 32 has a gear 321 driven by the inertia wheel 2. The gear 321 is driven to rotate by the inertia disk main body 21, thereby driving the heat dissipation fan 32 to rotate for fanning.

Preferably, the heat sink 31 has a first side facing the brake disc 4 and a second side facing the inertia wheel disc 2; an inner air cavity 311 is formed in the heat radiating body 31, and an air blowing port facing the brake disc 4 and communicated with the air cavity is formed on the first side surface. Preferably, the second side surface is formed with a mounting hole 314 to which the heat dissipation fan 32 is mounted, and the mounting hole 314 communicates with the inner air chamber 311. The heat radiation fan 32 is installed on the heat radiation body 31 to blow air to the inner air chamber 311, so that the air pressure of the inner air chamber 311 is raised, and high-speed air flow is blown toward the heat radiation plate toward the air blowing port to achieve a heat radiation effect.

Preferably, the air blowing port includes an annular air outlet annular port 313. Preferably, the air outlet annular port 313 is arranged coaxially with the wheel axis. Preferably, the outlet annular port 313 is in the form of a closed loop. The heat dissipation effect is better by arranging the air outlet annular opening 313.

Preferably, the air blowing port includes a plurality of air blowing holes 312. Preferably, each of the air injection holes 312 is arranged around the wheel axle. Preferably, each of the air injection holes 312 is uniformly arranged around the wheel axle. By providing the plurality of air injection holes 312, when the air flow is injected toward the air injection holes 312 in the inner air cavity 311, the air flow velocity is faster, and the cooling effect on the brake disc 4 is better.

Preferably, the inertia wheel disc 2 comprises an inertia wheel body 21 at an outer ring and a one-way driving wheel 22 at an inner ring and driving the inertia wheel body 21 to rotate in one direction. Preferably, the inner side surface of the inner ring of the inertia disk main body 21 is provided with a ratchet wheel 213 which is driven when the unidirectional driving wheel 22 rotates counterclockwise. The one-way driving wheel 22 drives the inertia disk main body 21 to rotate by engaging with the ratchet wheel 213 of the inertia disk main body 21.

Preferably, the one-way driving wheel 22 has a connection hole for passing the wheel axle and fixedly connecting with the wheel axle. The wheel shaft penetrates through the connecting hole and is fixedly connected with the one-way driving wheel 22, so that the one-way driving wheel 22 is driven to rotate, the one-way driving wheel 22 drives the inertia disc main body 21 to rotate, and the inertia disc main body 21 drives the heat dissipation main body 3 to dissipate heat of the brake disc 4.

Preferably, the outer lateral surface of the outer ring of the one-way driving wheel 22 is provided with a pawl 221 matched with the ratchet wheel 213, an arc notch rotationally connected with the pawl 221 and a yielding notch for yielding the pawl 221. The pawl 221 is rotatably connected to the arc notch, when the one-way driving wheel 22 rotates, the pawl 221 is locked in the ratchet wheel 213 and drives the inertia disc main body 21 to rotate, and when the rotation speed of the one-way driving wheel 22 starts to decrease, the inertia disc main body 21 continues to rotate under the action of inertia.

Preferably, an inertia convex disc 211 for driving the heat dissipation body 3 to rotate extends from the surface of the inertia disc body 21. The inertia cam 211 is made of a metal with a relatively high density, such as copper alloy.

Preferably, the outer side surface of the outer ring of the inertia cam 211 has external teeth 2111 engaged with the gear 321. The external teeth 2111 are formed on the outer side wall of the inertia disk 211, and engage with the gear 321 with the rotation of the inertia disk main body 21, and drive the heat radiation fan 32 to blow air, so that the heat radiator 31 radiates heat to the brake disk 4.

Preferably, a bearing limit bump 212 for passing through the wheel axle extends from the other surface of the inertia disc main body 21. The bearing limit lug 212 bears the weight of the inertia disc main body 21 and is rotatably connected to the wheel shaft, so that the structure is more reasonable.

Preferably, the bearing limit protrusion 212 includes a first bearing block 2121 connected to the inertia disk main body 21 and a second bearing block 2122 detachably connected to the first bearing block 2121; the first bearing block 2121 and the second bearing block 2122 are connected together to form a limiting groove 2123 for the protruding ring on the wheel axle to be inserted into. Through setting up this spacing groove 2123, when the bulge loop inlays on the axletree, can carry out ascending spacing to inertia dish main part 21 for design more reasonable.

Preferably, the hub body 1, the inertia wheel disc 2, the heat dissipation body 3 and the brake disc 4 are arranged in sequence towards the middle of the axis of the wheel axle, so that the heat dissipation effect is better.

The working principle of the wheel hub with automatic air cooling is as follows:

when the vehicle runs normally, the one-way driving wheel 22 drives the inertia disc main body 21 to rotate, the heat dissipation main body 3 is fixedly connected to the frame, the external teeth 2111 on the inertia disc main body 21 are meshed with the gear 321 of the heat dissipation fan 32, the heat dissipation fan 32 is driven to rotate to blow air into the air cavity 311 in the heat dissipation body 31, and the air is blown to the brake disc 4 from the air blowing port on the heat dissipation body 31 for heat dissipation. When sudden braking occurs suddenly, the rotating speed of the one-way driving wheel 22 begins to decrease, the inertia disc main body 21 continues to rotate at a high speed under the action of inertia force, the heat dissipation main body 3 continues to be driven to blow air to the brake disc 4, and heat dissipation of the brake disc 4 is achieved during braking.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.

Claims

1. A wheel hub with automatic air cooling comprises a wheel hub main body and is characterized by also comprising a heat dissipation device for dissipating heat of the wheel hub main body; the heat dissipation device comprises a heat dissipation main body for blowing and dissipating heat of the brake disc and an inertia wheel disc which is coaxially driven by the wheel shaft of the hub and drives the heat dissipation main body to rotate; the heat dissipation main body comprises a heat dissipation fan for supplying air to the heat dissipation body and a heat dissipation body for dissipating heat of the brake disc; the heat radiation fan is provided with a gear driven by the inertia wheel disc; the heat radiation body is provided with a first side surface facing the brake disc and a second side surface facing the inertia wheel disc; an inner air cavity is formed in the heat radiation body, and an air blowing port facing the brake disc and communicated with the inner air cavity is formed in the first side face.

2. The wheel hub with automatic air cooling of claim 1, wherein the second side surface is formed with a mounting opening for mounting the heat dissipation fan, the mounting opening communicating with the inner air chamber.

3. The wheel hub with automatic air cooling of claim 2, wherein the air blowing port comprises an annular air outlet ring port.

4. The wheel hub with automatic air cooling of claim 3, wherein the air outlet annular opening is arranged coaxially with the wheel shaft.

5. The wheel hub with automatic air cooling of claim 4, wherein the air outlet ring port is in the form of a closed loop.

6. The wheel hub with automatic air cooling of claim 1, wherein the air blowing port includes a plurality of air blowing holes.

7. The wheel hub of claim 6, wherein each of said air injection holes is arranged around the wheel axis.

8. The wheel hub of claim 7, wherein each of said plurality of air injection holes is uniformly arranged around the wheel axis.

9. The wheel hub of claim 1, wherein the inertia wheel disc includes an inertia disc body at an outer race and a one-way driving wheel at an inner race for driving the inertia disc body to rotate in one direction.

10. The wheel hub with automatic air cooling of claim 9, wherein the inner side surface of the inner ring of the inertia disk main body is provided with a ratchet wheel driven by the single-direction driving wheel rotating counterclockwise.

11. The wheel hub with automatic air cooling of claim 10, wherein the one-way driving wheel has a connection hole for passing the wheel shaft and fixedly connecting with the wheel shaft.

12. The wheel hub of claim 11, wherein the outer side of the one-way driving wheel has a pawl cooperating with the ratchet wheel, a circular notch rotatably connected to the pawl, and a relief notch for the pawl to relieve.

13. The wheel hub of claim 12, wherein the inertia plate body has an inertia convex plate extending from a surface thereof for driving the heat dissipating body to rotate.

14. The wheel hub of claim 13, wherein the outer side surface of the outer ring of the inertia cam has external teeth that mesh with the gear.

15. The wheel hub of claim 14, wherein the other surface of the inertia disc body is extended with a bearing limit protrusion for passing the wheel shaft.

16. The wheel hub of claim 15, wherein the load-bearing limit tab comprises a first load-bearing block attached to the inertia disc body and a second load-bearing block detachably attached to the first load-bearing block; the first bearing block and the second bearing block are connected together to form a limiting groove for embedding the convex ring on the wheel axle.

17. The wheel hub of claim 1, wherein said hub body, said inertia wheel disc, said heat dissipating body and said brake disc are arranged in sequence toward a middle of the wheel axle axis.