CN216733743U - Front axle suspension and vehicle with same - Google Patents

Abstract

The embodiment of the utility model discloses a front axle suspension, which comprises a mandrel and a hub, wherein the hub is arranged on the mandrel and is rotationally connected with the mandrel, and a lubricating cavity is arranged between the inside of the hub and the mandrel; the first sealing element is connected between the hub and the mandrel in a dynamic sealing manner; the brake disc comprises a body and a connecting part arranged on the body; the embodiment of the utility model discloses a vehicle with a front axle suspension, which comprises a front axle suspension, a brake, a tire and a front suspension oil cylinder, wherein the brake is in action connection with a brake disc of the front axle suspension; therefore, the brake disc is far away from the joint of the hub and the mandrel, and the problem that the first sealing element arranged at the joint of the hub and the mandrel is subjected to excessive heat to cause sealing failure is avoided.

Description

Front axle suspension and vehicle with same

Technical Field

The application belongs to the technical field of auto-parts, especially relates to a front axle suspension and have vehicle of front axle suspension.

Background

When the vehicle runs, the rotation between the hub and the spindle of the vehicle is generally kept stable by grease. However, because the heat dissipation of the lubricating grease is not good, when the hub brakes, the brake disc and the brake act to generate a large amount of heat, and the heat is transferred to the hub, so that the lubricating grease in the hub is heated, the lubricating effect of the heated lubricating grease is reduced, and the technical problems of bearing breakage, mandrel breakage and the like are caused.

Lubricating oil's heat dissipation is good, but when using, because lubricating oil easily leaks, consequently need seal through the inner chamber of sealing member to wheel hub, nevertheless because the junction of brake disc and wheel hub is close to the inboard sealing member setting of wheel hub in actual conditions to through the heat conduction between brake disc and the wheel hub, make the sealing member often because of being heated and lead to sealed effect to reduce, influenced the sealed effect to lubricating oil in the wheel hub.

Disclosure of Invention

This application aims at solving at least to a certain extent the sealing member on the wheel hub and leads to sealed not good technical problem of effect because of the heat that receives the brake disc. Therefore, the application provides a front axle suspension and a vehicle with the front axle suspension.

The embodiment of the utility model provides a front axle suspension, which comprises:

the hub is arranged on the mandrel and is rotationally connected with the mandrel, and a lubricating cavity is arranged between the inside of the hub and the mandrel;

the first sealing element is connected between the hub and the mandrel in a dynamic sealing mode;

the brake disc comprises a body and a connecting part arranged on the body, wherein the body is connected with the hub through the connecting part and sleeved on the hub, and gaps are formed between the surface of the body and the surface of the hub and between the hub and the connecting part of the core shaft.

In the embodiment of the utility model, a first mounting hole communicated with the lubricating cavity is formed in the inner side surface of the hub, a first closing piece is arranged on the mandrel, and the first closing piece is arranged on the first mounting hole and is rotationally connected with the first mounting hole;

the first sealing element is positioned inside the first mounting hole and is in dynamic sealing connection between the first sealing element and the first mounting hole.

In an embodiment of the present invention, a first guide portion is provided on the first sealing member, a second guide portion is provided at an end of the first mounting hole, and the first sealing member is rotatably connected to the first mounting hole by the first guide portion and the second guide portion being engaged with each other.

In an embodiment of the present invention, a first bearing assembly is disposed in the first mounting hole for rotationally connecting the spindle and the hub, the first bearing assembly comprising:

the first clamping table is arranged between the first mounting hole and the lubricating cavity;

the first bearing is clamped between the first clamping table and the first closing part, an inner ring of the first bearing is connected with the mandrel in a matched mode, and an outer ring of the first bearing is connected with the wheel hub in a matched mode.

In an embodiment of the utility model, a first lash adjuster is provided between the first closing element and the first bearing.

In the embodiment of the utility model, a second mounting hole communicated with the lubricating cavity is formed in the outer side surface of the hub, and a second sealing element is arranged outside the second mounting hole.

In an embodiment of the utility model, the second seal comprises:

the second closing part is connected to the second mounting hole in a closing mode;

and the sealing ring is connected between the second closing piece and the second mounting hole in a sealing mode.

In an embodiment of the present invention, a second bearing assembly is disposed in the second mounting hole for rotationally coupling the spindle and the hub, the second bearing assembly comprising:

a second bearing located in the second mounting hole

The second clamping table is arranged between the second mounting hole and the lubricating cavity and clamped with the outer ring of the second bearing;

and the stop block is arranged on the mandrel and is clamped with the inner ring of the second bearing.

In an embodiment of the utility model, a second lash adjuster is provided between the end of the spindle and the stop.

The embodiment of the utility model provides a vehicle with a front axle suspension, which comprises the front axle suspension, a brake, a tire and a front suspension oil cylinder, wherein the brake is in action connection with a brake disc of the front axle suspension, the tire is installed on a hub of the front axle suspension, and the front suspension oil cylinder is connected with a mandrel of the front axle suspension.

The embodiment of the utility model provides a front axle suspension, which comprises: the hub is arranged on the mandrel and is rotationally connected with the mandrel, and a lubricating cavity is arranged between the inside of the hub and the mandrel; the first sealing element is connected between the hub and the mandrel in a dynamic sealing mode; the brake disc comprises a body and a connecting part arranged on the body, wherein the body is connected with the hub through the connecting part and sleeved on the hub, and gaps are arranged between the body and the surface of the hub and between the body and the connecting part of the hub and the mandrel; the embodiment of the utility model provides a vehicle with a front axle suspension, which comprises a front axle suspension, a brake, a tire and a front suspension oil cylinder, wherein the brake is in action connection with a brake disc of the front axle suspension; therefore, the brake disc is far away from the joint of the hub and the mandrel, and the problem that the first sealing element arranged at the joint of the hub and the mandrel is subjected to excessive heat to cause sealing failure is avoided.

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 cross-sectional structural view of a front axle suspension provided in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a position where the first closing member is matched with the first mounting hole according to the embodiment of the utility model;

fig. 3 is a schematic structural diagram of a vehicle with a front axle suspension according to an embodiment of the present invention.

Reference numerals:

1. a mandrel; 11. a first closure member; 12. a first guiding part; 2. a hub; 21. a lubrication chamber; 22. a first mounting hole; 23. a second guiding part; 24. a second mounting hole; 3. a first seal member; 4. a second seal member; 41. a second closure member; 42. a seal ring; 5. a brake disc; 51. a body; 52. a connecting portion; 6. a first bearing assembly; 61. a first chuck table; 62. A first bearing; 63. a first lash adjuster; 7. a second bearing assembly; 71. a second bearing; 72. a second chuck table; 73. A stopper; 74. a second lash adjuster.

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.

Embodiments of the utility model are described below with reference to specific embodiments in conjunction with the following figures:

as shown in fig. 1, 2 and 3, a front axle suspension provided in an embodiment of the present invention includes: the lubricating device comprises a mandrel 1 and a hub 2, wherein the hub 2 is arranged on the mandrel 1 and is rotationally connected with the mandrel 1, and a lubricating cavity 21 is arranged between the inside of the hub 2 and the mandrel 1; the first sealing element 3 is connected between the hub 2 and the mandrel 1 in a dynamic sealing manner; the brake disc 5 comprises a body 51 and a connecting part 52 arranged on the body 51, wherein the body 51 is connected with the hub 2 through the connecting part 52 and sleeved on the hub 2, and gaps are arranged between the surfaces of the body 51 and the hub 2 and between the hub 2 and the connecting part of the mandrel 1.

Here, the spindle 1 is mounted on a suspension cylinder, and in use, the hub 2 rotates on the spindle 1, and specifically, the spindle 1 may be rotatably connected to the hub 2 through a bearing.

The lubrication cavity 21 is formed in the hub 2, and when the lubricating device is used, the rotation of the hub 2 drives gear oil in the lubrication cavity 21 to continuously stir and lubricate the bearing and the mandrel 1.

The mandrel 1 needs to penetrate through the outer surface of the hub 2 and be arranged in the lubricating cavity 21, the mandrel 1 is further connected with the hub 2 in a rotating mode, and gear oil is filled in the lubricating cavity 21, so that when the mandrel 1 is used, the lubricating oil is prevented from leaking out of the connection position of the mandrel 1 and the hub 2, and the use of the mandrel 1 and a bearing is prevented from being influenced. The first seal 3 is provided between the hub 2 and the spindle 1.

Specifically, since the hub 2 rotates relative to the spindle 1, the first seal 3 is provided as a dynamic seal, so that the lubricating oil in the lubricating chamber 21 is prevented from leaking out while the rotation of the hub 2 relative to the spindle 1 is ensured. The first sealing member 3 may be disposed outside a connection point of the hub 2 and the spindle 1, or may be disposed inside a connection point of the hub 2 and the spindle 1. Preferably, the first seal 3 is disposed inside the junction of the hub 2 and the spindle 1. This prevents impurities in the environment from affecting the first seal 3.

More specifically, the first seal 3 is a rotary dynamic seal. Preferably, a floating oil seal is used in the embodiment of the present invention.

The brake disc 5 in the prior art is generally disposed close to the inner side of the hub 2 (i.e. close to the position of the first sealing element 3), so that heat generated by the friction between the brake disc 5 and the brake is directly conducted to the hub 2, while the hub 2 conducts heat to the first sealing element 3, and the first sealing element 3 which is heated too high is prone to sealing failure and the like, which affects the sealing effect in the lubrication cavity 21, and further may cause problems of excessive wear and fracture of the bearing, overheating and fracture of the spindle 1 and the like.

Therefore, in the embodiment of the present invention, the body 51 of the brake disc 5 is sleeved on the hub 2 through the connecting portion 52, and the connection between the body 51 of the brake disc 5 and the surface of the hub 2 and the connection between the hub 2 and the core shaft 1 (i.e., the first seal 3) is spaced apart by a gap (i.e., the body 51 is not attached to the surface of the hub 2 and the connection between the hub 2 and the core shaft 1), so that heat of the brake disc 5 can be prevented from being directly transferred to the hub 2.

Specifically, a gap exists between the body 51 and the surface of the hub 2, and a gap exists between the body 51 and the connection between the hub 2 and the core shaft 1, where the gap can prevent heat on the brake disc 5 from being directly conducted to the hub 2, and can also increase the contact area between the body 51 and the outside, thereby improving the heat dissipation effect of the body 51.

More specifically, as shown in fig. 1, a junction between the brake disk 5 and the hub 2 is provided away from the first seal 3, a body 51 of the brake disk 5 is provided extending from the junction 52 toward the inside of the hub 2, and a gap is provided between the body 51 of the brake disk 5 and the junction between the spindle 1 and the hub 2. Thus, when in use, the first sealing element 3 is arranged far away from the first sealing element 3, and a gap is reserved between the body 51 of the brake disc 5 and the hub 2, so that the problem of sealing failure of the first sealing element 3 due to heat conduction is prevented, and the reliability of the first sealing element 3 in use is improved.

Further, in the embodiment of the present invention, as shown in fig. 1 and 2, a first mounting hole 22 communicating with the lubrication cavity 21 is opened on the inner side surface of the hub 2, a first closing member 11 is disposed on the spindle 1, and the first closing member 11 is disposed on the first mounting hole 22 and is rotatably connected to the first mounting hole 22; the first sealing element 3 is positioned inside the first mounting hole 22, and the first sealing element 3 is connected between the first sealing element 3 and the first mounting hole 22 in a dynamic sealing mode.

The first sealing member 11 is provided with a first guide portion 12, an end portion of the first mounting hole 22 is provided with a second guide portion 23, and the first sealing member 11 is rotatably connected to the first mounting hole 22 by the first guide portion 12 and the second guide portion 23 being fitted to each other.

A first bearing assembly 6 is arranged in the first mounting hole 22 and is used for being rotatably connected with the mandrel 1 and the hub 2, and the first bearing assembly 6 comprises: a first chuck 61 disposed between the first mounting hole 22 and the lubrication chamber 21; the first bearing 62 is clamped between the first clamping table 61 and the first closing part 11, an inner ring of the first bearing 62 is in fit connection with the mandrel 1, and an outer ring of the first bearing 62 is in fit connection with the hub 2.

A first play adjuster 63 is provided between the first closing element 11 and the first bearing 62.

Here, the first mounting hole 22 is provided inside the hub 2 and communicates with the lubrication chamber 21, and the spindle 1 is provided in the lubrication chamber 21 through the first mounting hole 22. The first bearing assembly 6 and the first seal 3 are arranged in the first mounting hole 22, in particular the first seal 3 is arranged outside the lubrication chamber 21 with respect to the bearing assembly, so that the lubrication oil in the lubrication chamber 21 can lubricate the first bearing assembly 6.

In order to facilitate the sealing connection between the spindle 1 and the first mounting hole 22, the first closing element 11 is provided on the spindle body of the spindle 1, where the first closing element 11 includes, but is not limited to, a cover body and a plate body, the first closing element 11 may be covered on the outer side of the first mounting hole 22 when in use, and the first mounting hole 22 is rotatably connected with the first closing element 11 during the rotation of the axle.

In order to correct the rotation of the spindle 1 and avoid the problem of inclination, a first guide portion 12 is provided on the first sealing member 11, and a second guide portion 23 is provided at an end of the first mounting hole 22.

Specifically, the first guide portion 12 and the second guide portion 23 cooperate with each other when in use, and when the spindle 1 is inclined with respect to the hub 2, the first guide portion 12 can maintain a relatively horizontal operating state by the action of the second guide portion 23.

More specifically, the first guiding portion 12 may be a step surface provided on the first sealing member 11, and the second guiding portion 23 is a step surface provided at an end of the first mounting hole 22, and the two step surfaces are engaged with each other; the first guiding portion 12 may be a first inclined surface provided on the first sealing member 11, the second guiding portion 23 is a second inclined surface provided at an end of the first mounting hole 22, and the first inclined surface and the second inclined surface are oppositely provided; the first guiding portion 12 may be a convex surface provided on the first sealing member 11, and the second guiding portion 23 is a concave surface provided at an end of the first mounting hole 22, and the convex surface and the concave surface are engaged with each other.

The mandrel 1 can facilitate the installation of the first sealing member 3 through the first closing member 11 and the first installation hole 22, as shown in fig. 1, the first sealing member 3 is in a cover shape, and the first sealing member 3 is installed inside the first sealing member 3 and the inner wall of the first installation hole 22.

Specifically, the first sealing element 3 is a floating oil seal, the first sealing element 3 includes a first sealing ring and a second sealing ring, the first sealing ring is hermetically sleeved on the inner hole wall of the first mounting hole 22, the second sealing ring is hermetically sleeved on the inner wall of the first sealing element 3, and a dynamic seal is formed between the first sealing ring and the second sealing ring, so that the joint of the mandrel 1 and the first mounting hole 22 is sealed.

The first bearing 62 is installed in the first installation hole 22, the first bearing 62 may be a tapered roller bearing, an inner ring of the first bearing 62 is connected with the spindle 1, and an outer ring of the first bearing 62 is fixedly connected with the hub 2.

In order to fix the first bearing 62 in the first mounting hole 22, the first bearing 62 is fixedly disposed in the first mounting hole 22 via the first locking piece 61 and the first closing member 11.

Specifically, the first clamping table 61 is a protruding portion disposed between the first mounting hole 22 and the lubrication cavity 21, and the first clamping table 61 may be disposed at intervals along the circumferential direction, or may be an integral annular table structure. More specifically, the first chuck 61 is an annular table body. In use, the first retainer 61 abuts the outer race of the first bearing 62.

In particular, the inner ring of the first bearing 62 abuts against the first closing element 11. More specifically, in order to facilitate adjustment of the first bearing 62, a first lash adjuster 63 is provided between the first bearing 62 and the first sealing member 11, and the first lash adjuster 63 may be a spacer or a block that is engaged between the first bearing 62 and the first sealing member 11, so that the first sealing member 11 can more easily act on the inner race of the first bearing 62, and preferably, the first lash adjuster 63 is an oil seal spacer. The size of the oil seal cushion block can be selected and used according to the requirement.

Further, in the embodiment of the present invention, as shown in fig. 1 and 2, a second mounting hole 24 communicating with the lubrication chamber 21 is formed in the outer side surface of the hub 2, and a second sealing member 4 is disposed outside the second mounting hole 24.

The second seal 4 includes: a second closing member 41, wherein the second closing member 41 is connected to the second mounting hole 24 in a closing manner; and a seal ring 42 sealingly connected between the second closing member 41 and the second mounting hole 24.

A second bearing unit 7 is arranged in the second mounting hole 24 and is used for being rotatably connected with the mandrel 1 and the hub 2, and the second bearing unit 7 comprises: the second bearing 71 is positioned in the second mounting hole 24 and is provided with a second clamping table 72 between the second mounting hole 24 and the lubricating cavity 21, and the second bearing 71 is clamped with the outer ring of the second bearing 71; and the stop block 73 is arranged on the mandrel 1 and is clamped with the inner ring of the second bearing 71.

A second lash adjuster 74 is provided between the end of the spindle 1 and the stop 73.

Here, the second mounting hole 24 is provided opposite to the first mounting hole 22 with respect to the lubrication chamber 21. The second mounting hole 24 is located outside the hub 2. In use, the end of the spindle 1 is disposed within the second mounting bore 24 and cooperates with the second bearing assembly 7 within the second mounting bore 24, and the lubricating oil within the lubrication chamber 21 can lubricate the second bearing assembly 7.

The second bearing unit 7 includes a second bearing 71, the second bearing 71 may be a tapered roller bearing opposite to the first bearing 62, and in order to fix the second bearing 71 in the second mounting hole 24, the second bearing 71 is clamped between the stopper 73 and the second clamping table 72.

Specifically, the outer ring of the second bearing 71 is in contact with the hub 2, and the outer ring of the second bearing 71 is in contact with the second locking step 72. More specifically, the second locking platform 72 is a protruding portion disposed between the second mounting hole 24 and the lubrication cavity 21, and the second locking platform 72 may be disposed at intervals along the circumferential direction, or may be two integral annular platform structures. More specifically, the second chuck 72 is an annular stage.

Specifically, the inner ring of the second bearing 71 is connected to the mandrel 1, and the inner ring of the second bearing 71 is fixed in the second mounting hole 24 by the engagement of the stopper 73 and the second locking boss 72.

The stopper 73 is mounted on the mandrel 1, and specifically, the stopper 73 may be mounted on the shaft body of the mandrel 1, or may be mounted at an end of the mandrel 1. Preferably, the stop 73 is mounted at the end of the mandrel 1. The stop 73 is connected to the inner ring of the second bearing 71 together with the spindle 1. Thus, when the spindle 1 rotates, the stopper 73 can follow the rotation of the spindle 1. Specifically, the block 73 includes, but is not limited to, a plate shape and a block shape. In use, at least one surface of the stop 73 abuts the second bearing 71.

In order to facilitate adjustment of the play of the second bearing 71, a second play adjuster 74 is provided between the stop 73 and the end of the spindle 1, where the second play adjuster 74 may be a washer.

The second mounting hole 24 can communicate with the outside, so as to facilitate mounting of the second bearing assembly 7 and other components, the second sealing element 4 is sealed on the second mounting hole 24, specifically, the second sealing element 4 is a static sealing element, the second closing element 41 on the second sealing element 4 includes, but is not limited to, a cover body and a plug body, and in order to improve the sealing effect, a sealing ring 42 is disposed between the second closing element 41 and the second mounting hole 24, and the sealing ring 42 includes, but is not limited to, a sealing O-ring.

The embodiment of the utility model provides a vehicle with a front axle suspension, which comprises the front axle suspension, a brake, a tire and a front suspension oil cylinder, wherein the brake is in action connection with a brake disc 5 of the front axle suspension, the tire is installed on a hub 2 of the front axle suspension, and the front suspension oil cylinder is connected with a mandrel 1 of the front axle suspension.

Here, as shown in fig. 1, 2 and 3, the front axle suspension includes a wheel hub 2, a lubrication chamber 21, a first mounting hole 22 and a second mounting hole 24 are formed in the wheel hub 2, the first mounting hole 22 and the second mounting hole 24 are symmetrically disposed on both sides of the lubrication chamber 21 and communicate with the outside, a first bearing assembly 6 is disposed in the first mounting hole 22, and a second bearing assembly 7 is disposed in the second mounting hole 24. The exterior of the hub 2 mounts a brake disc 5 and a tire.

One end of the spindle 1 is disposed in the lubrication chamber 21 through the first mounting hole 22 and the second mounting hole 24, and the spindle 1 is rotatably coupled to the hub 2 by being engaged with the first bearing assembly 6 and the second bearing assembly 7. The spindle 1 is rotatably connected to the first mounting hole 22 via a first seal 3. The other end of the mandrel 1 is provided with a taper hole and is connected with the front suspension oil cylinder.

The first bearing assembly 6 comprises a first bearing 62, the first bearing 62 is arranged between the first clamping table 61 and the first sealing element 3, wherein the first clamping table 61 and the wheel hub 2 are integrally arranged between the first mounting hole 22 and the lubricating cavity 21, and the first sealing element 3 is clamped with the first bearing 62 through an oil seal cushion block.

The second bearing assembly 7 comprises a second bearing 71, wherein the second bearing 71 is arranged between the second clamping table 72 and the stop block 73, the second clamping table 72 and the hub 2 are integrally formed and arranged between the second mounting hole 24 and the lubricating cavity 21, and the stop block 73 is fixedly connected to the end of the mandrel 1 and clamped with the second bearing 71. A bearing play adjusting shim is arranged between the stop block 73 and the mandrel 1.

A second sealing member 41 is provided outside the second mounting hole 24, and a seal ring 42 is provided between the second sealing member 41 and the second mounting hole 24.

The brake disc 5 is sleeved on the hub 2, a gap is formed between the brake disc 5 and the hub 2, and the brake disc 5 is far away from the first sealing element 3. The brake disc 5 is also operatively connected to a brake.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. 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. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating 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 based on the orientation or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be considered as limiting 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.

Furthermore, 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 to implicitly indicate 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 alterations 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 front axle suspension, characterized in that it comprises:

the lubricating device comprises a mandrel (1) and a hub (2), wherein the hub (2) is arranged on the mandrel (1) and is rotationally connected with the mandrel (1), and a lubricating cavity (21) is arranged between the inside of the hub (2) and the mandrel (1);

the first sealing element (3) is connected between the hub (2) and the mandrel (1) in a dynamic sealing manner;

brake disc (5), including body (51) to and connecting portion (52) of setting on body (51), wherein, body (51) pass through connecting portion (52) with wheel hub (2) are connected and the cover is established wheel hub (2) is last, body (51) with between wheel hub (2) the surface and with wheel hub (2) with all set up the clearance between the junction of dabber (1).

2. Front axle suspension according to claim 1, characterized in that the hub (2) has a first mounting hole (22) on its inner side communicating with the lubrication chamber (21), the spindle (1) has a first closing element (11), the first closing element (11) is disposed in the first mounting hole (22) and is rotatably connected to the first mounting hole (22);

the first sealing element (3) is positioned inside the first mounting hole (22), and the first sealing element (3) is in dynamic sealing connection between the first sealing element (3) and the first mounting hole (22).

3. A front axle suspension according to claim 2, wherein the first closing member (11) is provided with a first guiding portion (12), the end of the first mounting hole (22) is provided with a second guiding portion (23), and the first closing member (11) is rotatably connected to the first mounting hole (22) by the first guiding portion (12) and the second guiding portion (23) cooperating with each other.

4. Front axle suspension according to claim 2, characterized in that a first bearing assembly (6) is provided in the first mounting hole (22) for rotational connection with the spindle (1) and the wheel hub (2), which first bearing assembly (6) comprises:

a first clamping table (61) arranged between the first mounting hole (22) and the lubricating cavity (21);

the first bearing (62), the joint of first bearing (62) is in first ka tai (61) with first closing member (11), the inner circle of first bearing (62) with dabber (1) cooperation is connected, the outer lane of first bearing (62) with wheel hub (2) cooperation is connected.

5. A front axle suspension according to claim 4, characterized in that a first lash adjuster (63) is provided between the first closing element (11) and the first bearing (62).

6. Front axle suspension according to claim 1, characterized in that a second mounting hole (24) communicating with the lubrication chamber (21) is provided on the outer side of the hub (2), and a second seal (4) is provided on the second mounting hole (24).

7. A front axle suspension according to claim 6, characterized in that the second seal (4) comprises:

a second closing member (41), wherein the second closing member (41) is connected to the second mounting hole (24) in a closing manner;

and a seal ring (42) which is connected between the second closing member (41) and the second mounting hole (24) in a sealing manner.

8. Front axle suspension according to claim 6, characterized in that a second bearing unit (7) is provided in the second mounting hole (24) for rotational connection with the spindle (1) and the wheel hub (2), which second bearing unit (7) comprises:

a second bearing (71) located within the second mounting hole (24);

the second clamping table (72) is arranged between the second mounting hole (24) and the lubricating cavity (21) and clamped with the outer ring of the second bearing (71);

and the stop block (73) is arranged on the mandrel (1) and is clamped with the inner ring of the second bearing (71).

9. Front axle suspension according to claim 8, characterized in that a second lash adjuster (74) is provided between the end of the spindle (1) and the stop (73).

10. A vehicle with a front axle suspension, characterized in that it comprises a front axle suspension according to claims 1-9, a brake operatively connected to the brake disc (5) of the front axle suspension, a tire mounted on the hub (2) of the front axle suspension, and a front suspension cylinder connected to the spindle (1) of the front axle suspension.

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