CN216733744U - Wheel hub and automobile front axle - Google Patents

Abstract

The embodiment of the utility model discloses a hub, which comprises: the heat dissipation device comprises a shell, a lubrication cavity, a heat dissipation cavity and a heat dissipation opening, wherein the lubrication cavity and the heat dissipation cavity are arranged in the shell, and the heat dissipation opening is communicated with the heat dissipation cavity; the embodiment of the utility model provides an automobile front axle, which comprises a hub; like this, when using, through the heat dissipation chamber is close to the setting in lubricated chamber makes the heat in the lubricated intracavity can pass through the thermovent on the heat dissipation chamber and take place the heat exchange with external air, and then avoid the high temperature in the lubricated intracavity has ensured the life of bearing, dabber.

Description

Wheel hub and automobile front axle

Technical Field

The embodiment of the utility model belongs to the technical field of automobile parts, and particularly relates to a wheel hub and an automobile front axle.

Background

Heavy vehicle is in the use, general load is great, and speed is very fast, when the vehicle need slow down the braking or during brake braking, the stopper effect can produce a large amount of heats on the brake disc like this, these heats can be along the brake disc transmit to wheel hub on, if wheel hub's heat dispersion is not good, lubricating oil temperature rose in the lubricated intracavity in the wheel hub, make the result of use of lubricating oil reduce, the result of use of installing bearing or dabber inside the wheel hub has been influenced, make the ability that bearing or dabber resisted plastic deformation and fracture constantly reduce, can lead to bearing or dabber to appear breaking, fracture scheduling problem even.

Disclosure of Invention

The embodiment of the utility model aims to solve the technical problem of poor heat dissipation effect of the hub at least to a certain extent. Therefore, the embodiment of the utility model provides a hub and an automobile front axle.

The embodiment of the utility model provides a hub, which comprises:

the casing, set up in inside lubrication chamber and the heat dissipation chamber of casing, and with the thermovent of heat dissipation chamber intercommunication, wherein, the heat dissipation chamber is close to lubrication chamber sets up.

In the embodiment of the utility model, the heat dissipation rib plate is arranged in the heat dissipation cavity.

In an embodiment of the present invention, the housing includes:

the first bearing mounting through hole is arranged in the shell and is communicated with the lubricating cavity;

the first cavity wall of the heat dissipation cavity is arranged close to the first bearing installation through hole, and the second cavity wall of the heat dissipation cavity is arranged close to the lubrication cavity.

In an embodiment of the utility model, the hub further comprises:

the first flange is installed on the shell, and the joint of the first flange and the shell is close to the third cavity wall of the heat dissipation cavity.

In the embodiment of the utility model, a first limiting clamping table is arranged between the first bearing mounting through hole and the lubricating cavity.

In an embodiment of the present invention, the housing further comprises:

and the second bearing mounting through hole is arranged in the shell and communicated with the lubricating cavity, and a sealing groove is formed in the second bearing mounting through hole.

In the embodiment of the utility model, a second limiting clamping table is arranged at the joint of the second bearing mounting through hole and the lubricating cavity.

In an embodiment of the utility model, the hub further comprises:

and the joint of the second flange and the shell is close to the lubricating cavity.

In an embodiment of the utility model, the housing shell wall at the lubrication chamber is provided protruding outwards.

The embodiment of the utility model provides an automobile front axle which comprises a hub.

An embodiment of the present invention provides a wheel hub, including: the shell is provided with a lubricating cavity and a heat dissipation cavity which are arranged inside the shell, and a heat dissipation port communicated with the heat dissipation cavity, wherein the heat dissipation cavity is arranged close to the lubricating cavity; the embodiment of the utility model provides an automobile front axle, which comprises a hub; like this, when using, through the heat dissipation chamber is close to the setting in lubricated chamber makes the heat in the lubricated intracavity can pass through the thermovent on the heat dissipation chamber takes place the heat exchange with external air, and then avoids the high temperature in the lubricated intracavity has ensured the life of bearing, dabber.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a hub according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a hub according to an embodiment of the present invention;

fig. 3 is an enlarged view of a portion of the heat sink on the hub according to the embodiment of the present invention;

reference numerals:

1. a housing; 2. a lubrication chamber; 3. a heat dissipation cavity; 31. a heat dissipation port; 32. a first chamber wall; 33. a second chamber wall; 34. a third chamber wall; 4. a heat dissipation rib plate; 5. a first bearing mounting through hole; 51. a first limit clamping table; 6. a first flange; 7. a second bearing mounting through hole; 71. a sealing groove; 72. a second limit clamping table; 8. a second flange.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The application is described below with reference to specific embodiments in conjunction with the following drawings:

as shown in fig. 1, 2, and 3, a hub according to an embodiment of the present invention includes: casing 1, set up in the inside lubrication chamber 2 and the heat dissipation chamber 3 of casing 1, and with the thermovent 31 of heat dissipation chamber 3 intercommunication, wherein, heat dissipation chamber 3 is close to lubrication chamber 2 sets up.

Here, the housing 1 is a main body of a wheel hub, and the housing 1 is used for connecting with a tire, a spindle, a brake disc, and the like.

Set up lubricated chamber 2 in the casing 1, set up the lubricating medium in lubricated chamber 2, when wheel hub and dabber cooperation, reduce the friction between wheel hub and the dabber to protect internals such as dabber, bearing, prolong internals such as dabber, bearing and wheel hub's life, guaranteed the stability of wheel hub work.

However, in practical use, the housing 1 generally has a certain thermal conductivity, a brake disc mounted on the housing 1 generates heat during braking, and when the load of a vehicle is larger and the speed is higher, the more heat generated during braking of the brake disc is, the more heat is transmitted to the housing 1 through the brake disc, and then transmitted to the lubrication cavity 2 through the housing 1, so that the lubrication medium in the lubrication cavity 2 is affected by heat, and the use of internal components such as a spindle and a bearing is affected.

Therefore, in order to ensure that the lubrication cavity 2 is located in a relatively stable working environment, the casing 1 is provided with the heat dissipation cavity 3, and the heat dissipation cavity 3 is arranged close to the lubrication cavity 2, so that heat in the lubrication cavity 2 can be transferred into the heat dissipation cavity 3, then the temperature in the lubrication cavity 2 is reduced by the heat exchange mode between the heat dissipation port 31 and the air with lower external temperature, and the service life of the internal components such as the wheel hub, the spindle and the bearing is ensured.

Specifically, the shape of the heat dissipation cavity 3 includes, but is not limited to, an annular cavity, a square cavity, a spherical cavity and a special-shaped cavity, and the heat dissipation cavity 3 may be disposed on the side of the lubrication cavity 2, and may also be disposed around the circumference of the lubrication cavity 2 in a half-wrapped or full-wrapped manner. The heat dissipation port 31 of the heat dissipation cavity 3 can be directly arranged at any position on the surface of the shell 1 as required, or can be communicated with other holes or grooves communicated with the outside.

Further, in the embodiment of the present invention, as shown in fig. 1, 2 and 3, a heat dissipation rib plate 4 is disposed inside the heat dissipation cavity 3.

Here, when the heat dissipation cavity 3 is formed in the housing 1, the bearing strength of the housing 1 may be reduced to a certain extent, and therefore, in order to ensure the bearing strength of the housing 1, the heat dissipation rib plates 4 are arranged in the heat dissipation cavity 3, the heat dissipation rib plates 4 are connected between the inner cavity walls of the heat dissipation cavity 3 in a supporting manner, and when one side of the heat dissipation cavity 3 is stressed, the heat dissipation rib plates 4 can provide supporting force. Furthermore, when the heat dissipation rib plate 4 is used, the bearing strength of the shell 1 can be ensured, and the heat dissipation effect of the heat dissipation cavity 3 can be further improved by increasing the contact area between the inner cavity wall of the heat dissipation cavity 3 and the outside air.

Further, in the embodiment of the present invention, as shown in fig. 1, 2, and 3, the housing 1 includes: a first bearing mounting through hole 5 provided inside the housing 1 and communicating with the lubrication chamber 2; the first cavity wall 32 of the heat dissipation cavity 3 is arranged close to the first bearing installation through hole 5, and the second cavity wall 33 of the heat dissipation cavity 3 is arranged close to the lubrication cavity 2.

The hub further comprises: the first flange 6 is mounted on the housing 1, and the joint of the first flange 6 and the housing 1 is arranged close to the third cavity wall 34 of the heat dissipation cavity 3.

A first limiting clamping table 51 is arranged between the first bearing mounting through hole 5 and the lubricating cavity 2.

Here, the first bearing mounting through hole 5 is opened in the housing 1 and communicates with the lubrication chamber 2, a bearing is mounted in the first bearing mounting through hole 5, and the spindle may be rotatably connected to the housing 1 through the bearing.

The bearing is being installed when in the first bearing installation through-hole 5, need avoid entering into in the lubrication chamber 2, influence the volume in lubrication chamber 2, consequently first bearing installation through-hole 5 with set up first spacing ka tai 51 between the lubrication chamber 2, inject the mounted position of bearing, prevent the bearing drunkenness.

One end of the first bearing installation through hole 5 is communicated with the lubricating cavity 2, the other end of the first bearing installation through hole is communicated with the outside, when the lubricating device is used, the other end of the first bearing installation through hole 5 is the outer side of the shell 1, and a cover body is installed on the first bearing installation through hole 5. However, when heat is transferred to the first bearing mounting through hole 5, the sealing performance at the joint between the cover and the first bearing mounting through hole 5 may be affected, and thus, in order to improve the heat dissipation effect at the joint, the heat dissipation chamber 3 is disposed close to the first bearing mounting through hole 5.

Specifically, the heat dissipation chamber 3 may be provided around the circumference side of the first bearing mounting through-hole 5, and more specifically, the heat dissipation chamber 3 may be provided around the circumference side where the first bearing mounting through-hole 5 is provided.

The housing 1 is connected to the tire by means of a first flange 6, in order to avoid heat transfer to the first flange 6, which affects the stability of the mounting to the tire. Therefore, the connection of the first flange 6 to the housing 1 is arranged close to the heat dissipation chamber 3.

Specifically, the heat dissipation chamber 3 may be disposed on an inner peripheral side of a connection of the first flange 6 and the housing 1.

Practically, as shown in fig. 2 and 3, the first bearing mounting through hole 5, the heat dissipation cavity 3 and the first flange 6 are disposed on the outer side surface of the housing 1, wherein the inner ring of the first flange 6 is sleeved on the annular heat dissipation cavity 3, the inner ring of the heat dissipation cavity 3 is sleeved on the first bearing mounting through hole 5, wherein the first bearing mounting through hole 5 and the heat dissipation port 31 are disposed in a coplanar manner. The first cavity wall 32 of the heat dissipation cavity 3 is an inner side wall and is close to the first bearing installation through hole 5, the second cavity wall 33 of the heat dissipation cavity 3 is a cavity low surface opposite to the heat dissipation port 31 and is close to the lubricating cavity 2, and the third cavity wall 34 of the heat dissipation cavity 3 is an outer cavity wall and is close to the first flange 6.

Further, in the embodiment of the present invention, as shown in fig. 1, 2, and 3, the housing 1 further includes: and the second bearing mounting through hole 7 is arranged in the shell 1 and is communicated with the lubricating cavity 2, and a sealing groove 71 is formed in the second bearing mounting through hole 7.

And a second limiting clamping table 72 is arranged at the joint of the second bearing mounting through hole 7 and the lubricating cavity 2.

The hub further comprises: and the joint of the second flange 8 and the shell 1 is close to the lubricating cavity 2.

The housing 1 wall at the lubrication chamber 2 is provided protruding outwards.

Here, the second bearing mounting through hole 7 is disposed opposite to the first bearing mounting through hole 5 through the lubrication chamber 2. And a bearing is arranged in the second bearing installation through hole 7, the bearing is positioned and arranged in the second bearing installation through hole 7 through the second limiting clamping table 72, and the mandrel is arranged in the lubricating cavity 2 in a penetrating manner through the bearing in the first bearing installation through hole 5 and the bearing in the second bearing installation through hole 7.

A sealing groove 71 is arranged in the second bearing mounting through hole 7, and a floating oil seal is arranged in the sealing groove 71, so that the second bearing mounting through hole 7 can be ensured to be connected with the spindle in a rotating mode through the sealing groove 71.

The second flange 8 is used for the main part is connected with the brake disc, the second flange 8 with the junction of casing 1 is close to lubricated chamber 2 sets up, when using like this for the brake disc with the junction of wheel hub sets up and is keeping away from the bearing lubricated chamber 2 is last, makes on the heat can not direct transfer to the bearing, very big reduction because the bearing that the brake disc heat-conduction leads to breaks technical problem.

Further, when the lubrication cavity 2 is larger, the more the lubrication medium in the lubrication cavity 2, the better the use effect between the spindle and the hub, and meanwhile, in order to save the space for installing the hub, the wall of the housing 1 at the lubrication cavity 2 is protruded outwards, so that the utilization rate of the space of the housing 1 is higher while the lubrication effect is maintained.

Further, the automobile front axle provided by the embodiment of the utility model comprises the wheel hub provided by the embodiment of the utility model.

The automobile front axle comprises a mandrel, a brake disc, a brake, a steering arm and a hub, wherein the steering arm is connected with the mandrel, the mandrel penetrates through a lubricating cavity of the hub and is rotatably connected with the hub through a bearing, the brake disc is sleeved on the outer wall of the hub and is fixedly connected with the hub, and the brake disc is in action connection with the brake.

In this application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise" indicate orientations or positional relationships that are based on the orientations or positional relationships illustrated in the figures, but are used for convenience in describing the present application and to simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus, are not to be considered limiting of the present application.

It should be noted that all the directional indications in the embodiments of the present application are only used to explain the relative position relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.

In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In addition, descriptions in this application as to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: numerous changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A hub, characterized in that the hub comprises:

the casing (1), set up in lubricated chamber (2) and heat dissipation chamber (3) inside casing (1), and with thermovent (31) of heat dissipation chamber (3) intercommunication, wherein, heat dissipation chamber (3) are close to lubricated chamber (2) setting.

2. Hub according to claim 1, wherein the heat dissipation cavity (3) is internally provided with heat dissipation ribs (4).

3. Hub according to claim 1, wherein the housing (1) comprises:

the first bearing mounting through hole (5) is arranged in the shell (1) and is communicated with the lubricating cavity (2);

the first cavity wall (32) of the heat dissipation cavity (3) is arranged close to the first bearing installation through hole (5), and the second cavity wall (33) of the heat dissipation cavity (3) is arranged close to the lubrication cavity (2).

4. The hub of claim 3, further comprising:

the first flange (6) is installed on the shell (1), and the joint of the first flange (6) and the shell (1) is close to a third cavity wall (34) of the heat dissipation cavity (3).

5. A hub according to claim 3, wherein a first limit stop (51) is provided between the first bearing mounting through hole (5) and the lubrication chamber (2).

6. Hub according to claim 1, wherein the housing (1) further comprises:

and the second bearing mounting through hole (7) is arranged in the shell (1) and communicated with the lubricating cavity (2), and a sealing groove (71) is formed in the second bearing mounting through hole (7).

7. Wheel hub according to claim 6, characterized in that a second limit catch (72) is provided at the connection of the second bearing mounting through hole (7) and the lubrication chamber (2).

8. The hub of claim 1, further comprising:

the joint of the second flange (8) and the shell (1) is close to the lubricating cavity (2).

9. Hub according to claim 1, wherein the housing (1) wall at the lubrication chamber (2) is provided protruding outwards.

10. A front axle for a motor vehicle, comprising a wheel hub according to any one of claims 1 to 9.

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