CN213981650U

CN213981650U - Automobile hub unit bearing

Info

Publication number: CN213981650U
Application number: CN202023029935.2U
Authority: CN
Inventors: 李召; 李飞; 李达
Original assignee: Hebei Hengtai Ruixin Bearing Co ltd
Current assignee: Hebei Hengtai Ruixin Bearing Co ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-08-17
Anticipated expiration: 2030-12-16

Abstract

The utility model discloses an automobile wheel hub unit bearing, including the inner circle, inner circle one side is connected with the flange, and inner circle circumference outside cover is equipped with the outer lane, and first channel and second channel have been seted up in the inner circle circumference outside, all is provided with a plurality of align to grid in first channel and the second channel and is the ball that the annular distributes, and ball outside cover is equipped with complex holder with it, just is located two ball outsides between inner circle and the outer lane and is provided with seal assembly. The hub unit bearing has the beneficial effects that the sealing assembly is arranged, so that the hub unit bearing can play a multiple sealing effect, and external dust and internal grease are effectively prevented from entering and leaking, so that the service life of the hub unit bearing is prolonged; meanwhile, through the structural design that the first channel is higher than the second channel and the first channel is higher than the second channel, the hub unit bearing can be kept more stable when bearing axial load and radial load, and the stability of the hub unit bearing is further improved.

Description

Automobile hub unit bearing

Technical Field

The utility model relates to an auto-parts technical field particularly, relates to an automobile wheel hub unit bearing.

Background

The main function of the hub bearing is to bear load and provide precise guidance for the rotation of the hub, and the hub bearing bears axial load and radial load and is a very important part. The traditional bearing for the automobile wheel is formed by combining two sets of tapered roller bearings or ball bearings, and the installation, the oil coating, the sealing and the clearance adjustment of the bearing are all carried out on an automobile production line. This structure makes it difficult, with high costs, the reliability poor in the assembly of automobile manufacturing factory, and when the car was maintained at the repair site, still need wash, fat liquoring and adjustment to the bearing. Therefore, the conventional bearing also has many limitations in practical application, and is now replaced by a hub unit bearing, which can solve the above problems, but the structures of various hub unit bearings are different, and the unit bearings need to be designed correspondingly to realize respective functions in terms of sealing performance, stability and convenience.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

To the problem in the correlation technique, the utility model provides an automobile wheel hub unit bearing to overcome the above-mentioned technical problem that current correlation technique exists.

Therefore, the utility model discloses a specific technical scheme as follows:

the utility model provides an automobile wheel hub unit bearing, includes the inner circle, and inner circle one side is connected with the flange, and inner circle circumference outside cover is equipped with the outer lane, and first channel and second channel have been seted up to the inner circle circumference outside, all is provided with a plurality of align to grid in first channel and the second channel and is the ball that the annular distributes, and ball outside cover is equipped with complex holder with it, just is located two ball outsides between inner circle and the outer lane and is provided with seal assembly.

Furthermore, in order to enable the flange to realize the fixation and installation of the inner ring and keep stable, and the installation of the hub is realized through the installation holes, a plurality of installation holes which are distributed in an annular manner and arranged at equal intervals are formed in the outer edge of the circumference of the flange, an inner ring groove is formed in the central position of one side, close to the inner ring, of the flange, and the inner ring is installed inside the inner ring groove and is kept connected with the flange through a fixing bolt.

Furthermore, in order to fix the ball inside the first channel, the ball is prevented from being subjected to a transverse force to generate deviation, and then the stability of the bearing is improved.

Furthermore, in order to make the ball fix inside the second channel, avoid the ball to receive the transverse force and take place the skew, and then improve the stability of bearing, the second channel is located the one side that the inner circle is close to the flange, and the height that highly is less than the second channel and is close to one side of the flange that flange one side was kept away from to the second channel, and the second channel be with ball matched with arc structure.

Further, in order to increase the transverse contact area between the outer ring and the inner ring and improve the stability of the outer ring when the outer ring is subjected to an axial load, the height of the first channel is higher than that of the second channel.

Furthermore, in order to form multi-layer sealing between the inner ring and the outer ring and ensure the sealing performance of the first channel and the second channel, thereby improving the service life and the stability of the hub unit bearing, the sealing assembly comprises a first sealing ring sleeved on the outer side of the circumference of the inner ring, a first rubber sealing element is sleeved on the top end of the first sealing ring, a plurality of first sealing lips which are arranged at equal intervals are arranged on the top end of the first rubber sealing element, a first arc-shaped groove matched with the first sealing lips is arranged on the inner side of the circumference of the outer ring, a second sealing ring is arranged on the inner side of the circumference of the outer ring and close to one side of the flange, a second rubber sealing element is sleeved on the bottom end of the second sealing ring, a plurality of second sealing lips which are arranged at equal intervals are arranged on the bottom end of the second rubber sealing element, a second arc-shaped groove matched with the second sealing lips is arranged on the outer side of the circumference of the inner ring, a first reinforcing ring close to the flange is provided with a first reinforcing ring, one side of the second sealing ring, which is far away from the flange, is provided with a second reinforcing ring matched with the first reinforcing ring.

The utility model has the advantages that:

1. through setting up seal assembly for this wheel hub unit bearing can play multiple sealed effect, the effectual entering that prevents external dust and revealing of inside grease, thereby improve wheel hub unit bearing's life.

2. Through the structural design that first channel is higher than second channel and itself, can make this wheel hub unit bearing when bearing axial load and radial load, keep more stable, and then improve wheel hub unit bearing's stability. Meanwhile, through the design of separating the inner ring from the flange, the convenience in disassembly and assembly for inspection and maintenance can be realized under the condition of ensuring the stability and the strength, so that the difficulty and the cost of maintenance are reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a main body of an automobile hub unit bearing according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a partially enlarged view of fig. 1 at B.

In the figure:

1. an inner ring; 2. a flange; 3. an outer ring; 4. a first channel; 5. a second channel; 6. a ball bearing; 7. a holder; 8. a seal assembly; 801. a first seal ring; 802. a first rubber seal; 803. a first seal lip; 804. a first arc-shaped slot; 805. a second seal ring; 806. a second rubber seal; 807. a second sealing lip; 808. a second arc-shaped slot; 809. a first reinforcing ring; 810. a second reinforcing ring; 9. mounting holes; 10. an inner ring groove; 11. and (5) fixing the bolt.

Detailed Description

For further explanation of the embodiments, the drawings are provided as part of the disclosure and serve primarily to illustrate the embodiments and, together with the description, to explain the principles of operation of the embodiments, and to provide further explanation of the invention and advantages thereof, it will be understood by those skilled in the art that various other embodiments and advantages of the invention are possible, and that elements in the drawings are not to scale and that like reference numerals are generally used to designate like elements.

According to the utility model discloses an embodiment provides an automobile wheel hub unit bearing.

Now combine the attached drawing and detailed implementation to the utility model discloses explain further, as shown in fig. 1-3, according to the utility model discloses automobile wheel hub unit bearing, including

inner circle

1, 1 one side of inner circle is connected with

flange

2, and 1 circumference outside cover of inner circle is equipped with outer lane 3, and first channel 4 and second channel 5 have been seted up to the 1 circumference outside of inner circle, all is provided with a plurality of align to grid in first channel 4 and the second channel 5 and is the ball 6 that the annular distributes, and 6 outside covers of ball are equipped with complex holder 7 with it, and it is provided with seal assembly 8 just to be located two balls 6 outsides between inner circle 1 and the outer lane 3.

By means of above-mentioned technical scheme for through setting up seal assembly 8, make this wheel hub unit bearing can play multiple sealed effect, the effectual entering that prevents external dust and revealing of inside grease, thereby improve wheel hub unit bearing's life. Through the structural design that first channel 4 is higher than second channel 5 and itself, can make this wheel hub unit bearing when bearing axial load and radial load, keep more stable, and then improve wheel hub unit bearing's stability. Meanwhile, through the design of separating the inner ring 1 from the flange 2, the convenience in disassembly and assembly for inspection and maintenance can be realized under the condition of ensuring the stability and the strength, so that the difficulty and the cost of maintenance are reduced.

In an embodiment, for the flange 2, a plurality of mounting holes 9 are formed in the circumferential outer edge of the flange 2, the mounting holes are arranged at equal intervals and distributed annularly, an inner ring groove 10 is formed in the central position of one side of the flange 2, which is close to the inner ring 1, the inner ring 1 is mounted inside the inner ring groove 10 and is connected with the flange 2 through a fixing bolt 11, so that the flange 2 can fix and mount the inner ring 1 and keep stable, and the mounting of the hub is realized through the mounting holes 9.

In one embodiment, for the first channel 4, the first channel 4 is located on a side of the inner ring 1 away from the flange 2, a height of the first channel 4 away from the flange 2 is higher than a height of the first channel 4 close to the flange 2, and the first channel 4 is in an arc structure matched with the balls 6, so that the balls 6 can be fixed inside the first channel 4, the balls 6 are prevented from being deviated by a transverse force, and the stability of the bearing is improved.

In one embodiment, for the second channel 5, the second channel 5 is located on a side of the inner ring 1 close to the flange 2, a height of the second channel 5 away from the flange 2 is lower than a height of the second channel 5 close to the flange 2, and the second channel 5 is in an arc structure matched with the balls 6, so that the balls 6 can be fixed inside the second channel 5, the balls 6 are prevented from being deviated by a transverse force, and the stability of the bearing is improved.

In one embodiment, the height of the first channels 4 is higher than that of the second channels 5 for the first channels 4, so that the transverse contact area of the outer ring 3 and the inner ring is increased, and the stability of the outer ring 3 under the axial load is improved.

In one embodiment, for the above sealing assembly 8, the sealing assembly 8 includes a first sealing ring 801 disposed on the outer side of the circumference of the inner ring 1, a first rubber sealing element 802 is disposed on the top end of the first sealing ring 801, a plurality of first sealing lips 803 arranged at equal intervals are disposed on the top end of the first rubber sealing element 802, a first arc-shaped groove 804 matched with the first sealing lips 803 is disposed on the inner side of the circumference of the outer ring 3, a second sealing ring 805 is disposed on the inner side of the circumference of the outer ring 3 and close to the flange 2, a second rubber sealing element 806 is disposed on the bottom end of the second sealing element 805, a plurality of second sealing lips 807 arranged at equal intervals are disposed on the bottom end of the second sealing element 806, a second arc-shaped groove 808 matched with the second sealing lips is disposed on the outer side of the circumference of the inner ring 1, a first reinforcing ring 809 is disposed on the side of the first sealing ring 801 close to the flange 2, a second reinforcing ring 810 matched with the first reinforcing ring 809 is disposed on the side of the second sealing ring 805 far from the flange 2, therefore, multi-layer sealing is formed between the inner ring 1 and the outer ring 3, the sealing performance of the first channel 4 and the second channel 5 is guaranteed, and the service life and the stability of the hub unit bearing are further improved.

For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.

In the time of practical application, will the utility model discloses a mounting hole 9 is installed in automobile wheel hub, and at the car operation in-process, inner circle 1 is rotatory under the drive of tire with

flange

2, and 6 rotations of ball are guaranteed outer lane 3 and are kept fixed, and when wheel hub unit bearing constantly bear axial load and radial load, this wheel hub unit bearing is through the structure of itself and remains stable, benefits from seal assembly 8's effect simultaneously, and the effectual entering of avoiding external dust impurity guarantees that ball 6 is in lubricated non-interfering state all the time.

To sum up, with the help of the above technical scheme of the utility model for through setting up seal assembly 8, make this wheel hub unit bearing can play multiple sealed effect, the effectual entering that prevents external dust and revealing of inside grease, thereby improve wheel hub unit bearing's life. Through the structural design that first channel 4 is higher than second channel 5 and itself, can make this wheel hub unit bearing when bearing axial load and radial load, keep more stable, and then improve wheel hub unit bearing's stability. Meanwhile, through the design of separating the inner ring 1 from the flange 2, the convenience in disassembly and assembly for inspection and maintenance can be realized under the condition of ensuring the stability and the strength, so that the difficulty and the cost of maintenance are reduced.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an automobile wheel hub unit bearing, its characterized in that, includes inner circle (1), inner circle (1) one side is connected with flange (2), inner circle (1) circumference outside cover is equipped with outer lane (3), first channel (4) and second channel (5) have been seted up in the inner circle (1) circumference outside, first channel (4) with all be provided with ball (6) that a plurality of align to grid are the annular and distribute in second channel (5), ball (6) outside cover is equipped with complex holder (7) with it, inner circle (1) with just be located two between outer lane (3) the ball (6) outside is provided with seal assembly (8).

2. The automobile hub unit bearing of claim 1, wherein a plurality of mounting holes (9) are formed in the circumferential outer edge of the flange (2) and are arranged at equal intervals and distributed annularly, an inner ring groove (10) is formed in the center of one side, close to the inner ring (1), of the flange (2), and the inner ring (1) is mounted inside the inner ring groove (10) and is connected with the flange (2) through a fixing bolt (11).

3. The automobile hub unit bearing according to claim 1, wherein the first channel (4) is located on one side of the inner ring (1) far away from the flange (2), the height of one side of the first channel (4) far away from the flange (2) is higher than the height of one side of the first channel (4) close to the flange (2), and the first channel (4) is of an arc-shaped structure matched with the balls (6).

4. The automobile hub unit bearing according to claim 3, characterized in that the second channel (5) is located on one side of the inner ring (1) close to the flange (2), the height of one side of the second channel (5) far away from the flange (2) is lower than the height of one side of the second channel (5) close to the flange (2), and the second channel (5) is of an arc-shaped structure matched with the balls (6).

5. A bearing for an automobile hub unit according to claim 4, characterized in that the height of the first channel (4) is higher than the height of the second channel (5).

6. The automobile hub unit bearing of claim 1, wherein the sealing assembly (8) comprises a first sealing ring (801) sleeved outside the circumference of the inner ring (1), a first rubber sealing member (802) is sleeved on the top end of the first sealing ring (801), a plurality of first sealing lips (803) arranged at equal intervals are arranged on the top end of the first rubber sealing member (802), a first arc-shaped groove (804) matched with the first sealing lips (803) is formed in the inner circumference of the outer ring (3), a second sealing ring (805) is arranged on the inner circumference of the outer ring (3) and close to one side of the flange (2), a second rubber sealing member (806) is sleeved on the bottom end of the second sealing ring (805), a plurality of second sealing lips (807) arranged at equal intervals are arranged at the bottom end of the second rubber sealing member (806), and a second arc-shaped groove (807) matched with the second sealing lips (807) is formed in the outer circumference of the inner ring (1) The groove (808), one side of the first sealing ring (801) close to the flange (2) is provided with a first reinforcing ring (809), and one side of the second sealing ring (805) far away from the flange (2) is provided with a second reinforcing ring (810) matched with the first reinforcing ring (809).