CN215333970U

CN215333970U - Long-life automobile front wheel hub unit

Info

Publication number: CN215333970U
Application number: CN202121534628.1U
Authority: CN
Inventors: 顾建伟
Original assignee: Hangzhou Kefeng Bearing Co ltd
Current assignee: Hangzhou Kefeng Bearing Co ltd
Priority date: 2021-07-07
Filing date: 2021-07-07
Publication date: 2021-12-28
Anticipated expiration: 2031-07-07

Abstract

The utility model relates to a long-life automobile front wheel hub unit, which comprises a flange plate, wherein an inner ring is arranged on the outer side of one end of the flange plate, an outer ring is arranged on the outer side of the inner ring, a roller is arranged between the inner ring and the outer ring, a retainer for preventing the roller from abnormally sliding is arranged on one side of the roller close to the outer ring, a magnetic assembly is arranged between one end of the outer ring and the inner ring, and a lower sealing assembly is arranged between the other end of the outer ring and the inner ring.

Description

Long-life automobile front wheel hub unit

Technical Field

The utility model relates to a hub unit, in particular to a long-life automobile front wheel hub unit.

Background

The hub unit is used as an important part of an automobile and is mainly used for bearing and providing accurate guidance for the rotation of a hub bearing. At present, constant velocity universal joints are generally matched with a third-generation hub bearing unit on a car, the hub bearing unit is connected with a wheel, the constant velocity universal joints are matched with an inner flange through splines, and the structure has the advantages of multiple parts, complex assembly and small turning radius of the car. With the further development of science and technology, people further improve the requirements on the integration level and compactness of car parts.

The connection of the inner ring and the inner flange of the traditional hub unit is carried out by means of friction force, and after the hub unit is used for a long time, the inner ring and the flange of the hub unit can rotate relatively, so that the normal use of the hub unit is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the normal use of a hub unit is influenced because the relative rotation is generated between the inner ring of the bearing of the traditional hub unit and the connecting flange after long-time use.

The technical problem of the utility model is mainly solved by the following technical scheme:

the utility model discloses a long-life automobile front wheel hub unit, which comprises a flange plate, wherein an inner ring is arranged on the outer side of one end of the flange plate, an outer ring is arranged on the outer side of the inner ring, a roller is arranged between the inner ring and the outer ring, a retainer for preventing the roller from abnormally sliding is arranged on one side of the roller close to the outer ring, a magnetic assembly is arranged between one end of the outer ring and the inner ring, a lower sealing assembly is arranged between the other end of the outer ring and the inner ring, an inner framework is arranged on one side of the lower sealing assembly far away from the outer ring, a limiting block positioned on the outer side of the flange plate is arranged on one side of the magnetic assembly far away from the outer ring, and a limiting mechanism is arranged in the limiting block.

The limiting mechanism is arranged, so that the relative rotation between the inner ring and the flange plate is effectively prevented, and the bearing unit can be normally used for a long time.

Preferably, the limiting mechanism includes magnets symmetrically disposed in the limiting block about a central axis of the flange plate, the magnets can attract the magnetic component after being energized, friction cavities with openings facing to a side close to the magnetic component are symmetrically disposed outside the magnets, and friction components are disposed in the friction cavities.

Preferably, the limiting mechanism further comprises a sliding cavity, the sliding cavity is arranged on one side, away from the magnet, of the friction cavity, the opening direction of the sliding cavity is the same as that of the friction cavity, a sliding groove is formed in the end wall of one side of the sliding cavity in a communicated mode, the other side, away from the magnet, of the friction cavity is provided with a limiting cavity, the opening direction of the limiting cavity is perpendicular to that of the opening direction of the friction cavity, a connecting cavity is formed in one side of the limiting cavity in a communicated mode, and a limiting component matched with the friction component in use is arranged in the sliding cavity and the connecting cavity.

Preferably, the friction assembly comprises a friction block arranged in the friction cavity in a sliding mode, an elastic spring is arranged between the friction block and the end wall of one side, far away from the opening, of the friction cavity, a pull rope is arranged on the end face of one side, far away from the opening, of the friction block, and one end of the pull rope extends into the sliding groove and the connecting cavity respectively.

Preferably, the limiting assembly comprises a second slot which is arranged in the flange plate, an opening of the second slot can be aligned with the limiting cavity, a second limiting rod which can move into the second slot is arranged in the limiting cavity in a sliding mode, a connecting plate which is connected with the second limiting rod is arranged in the connecting cavity in a sliding mode, a connecting spring is arranged between the connecting plate and the end wall, close to the friction cavity, of the connecting cavity, and one end, extending to the connecting cavity, of the pull rope is connected with the connecting plate.

Preferably, the limiting assembly further comprises a first slot which is arranged in the inner ring and has an opening capable of aligning with the opening of the sliding cavity, a first limiting rod is arranged in the sliding cavity in a sliding mode and capable of moving into the first slot, a pressure spring is arranged between the first limiting rod and the end wall of one side, far away from the opening, of the sliding cavity, a sliding plate is arranged in the sliding groove in a sliding mode, and one end, extending into the sliding groove, of the pulling rope is connected with the sliding plate.

Therefore, the bearing unit is rigidly connected with the flange plate through the limiting mechanism by arranging the limiting mechanism, and when relative rotation between the inner ring and the flange plate is about to occur, the relative rotation between the inner ring and the flange plate is prevented under the limiting action of the limiting mechanism, so that the bearing unit can be normally used for a long time.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is an enlarged view of the structure of FIG. 1A;

fig. 4 is an enlarged view of the structure of fig. 1B.

Parts, positions and numbers in the drawings: 10. an outer ring; 11. an inner ring; 12. a flange plate; 13. a roller; 14. a holder; 15. a magnetic component; 16. a lower seal assembly; 17. an inner skeleton; 18. a limiting block; 19. a friction chamber; 20. pulling a rope; 21. a sliding groove; 22. a pressure spring; 23. a sliding cavity; 24. a sliding plate; 25. a first restricting lever; 26. a first slot; 27. a friction block; 28. an elastic spring; 29. a magnet; 30. a connecting spring; 31. a connecting plate; 32. a connecting cavity; 33. a second slot; 34. a second restricting lever; 35. and a limiting cavity.

Detailed Description

The technical scheme of the utility model is further specifically described by the following embodiments and the accompanying drawings.

Example (b): referring to fig. 1, 2, 3 and 4, the long-life automobile front wheel hub unit of the present invention includes a flange 12, an inner ring 11 is disposed on an outer side of one end of the flange 12, an outer ring 10 is disposed on an outer side of the inner ring 11, a roller 13 is disposed between the inner ring 11 and the outer ring 10, a retainer 14 for preventing the roller 13 from sliding abnormally is disposed on a side of the roller 13 close to the outer ring 10, a magnetic assembly 15 is disposed between one end of the outer ring 10 and the inner ring 11, a lower seal assembly 16 is disposed between the other end of the outer ring 10 and the inner ring 11, an inner frame 17 is disposed on a side of the lower seal assembly 16 away from the outer ring 10, a limiting block 18 is disposed on an outer side of the flange 12 on the side of the magnetic assembly 15 away from the outer ring 10, a limiting mechanism is disposed in the limiting block 18, and the limiting mechanism includes magnets symmetrically disposed in the limiting block 18 about a central axis of the flange 12 29, the magnet 29 can adsorb the magnetic component 15 after being electrified, a friction cavity 19 with an opening facing to one side close to the magnetic component 15 is symmetrically arranged on the outer side of the magnet 29, a friction component is arranged in the friction cavity 19, a sliding cavity 23 with an opening direction the same as that of the friction cavity 19 is arranged on one side of one friction cavity 19 away from the magnet 29, a sliding groove 21 is communicated with the end wall on one side of the sliding cavity 23, a limiting cavity 35 with an opening direction mutually perpendicular to that of the friction cavity 19 is arranged on the other side of the friction cavity 19 away from the magnet 29, a connecting cavity 32 is communicated with one side of the limiting cavity 35, a limiting component matched with the friction component is arranged in the sliding cavity 23 and the connecting cavity 32, and the friction component comprises a friction block 27 interactively arranged in the friction cavity 19, an elastic spring 28 is arranged between the friction block 27 and the end wall of one side of the friction cavity 19 far away from the opening, a pull rope 20 is arranged on the end surface of one side of the friction block 27 far away from the opening of the friction cavity 19, one end of the pull rope 20 extends into the sliding groove 21 and the connecting cavity 32 respectively, the limiting component comprises a second slot 33 which is arranged in the flange 12 and the opening of which can be aligned with the limiting cavity 35, a second limiting rod 34 which can move into the second slot 33 is arranged in the limiting cavity 35 in a sliding manner, a connecting plate 31 connected with the second limiting rod 34 is arranged in the connecting cavity 32 in a sliding manner, a connecting spring 30 is arranged between the connecting plate 31 and the end wall of one side of the connecting cavity 32 close to the friction cavity 19, one end of the pull rope 20 extending into the connecting cavity 32 is connected with the connecting plate 31, and a first slot 26 which can be aligned with the opening of the sliding cavity 23 is arranged in the inner ring 11, a first limiting rod 25 is arranged in the sliding cavity 23 in a sliding manner, the first limiting rod 25 can move into the first slot 26, a pressure spring 22 is arranged between the first limiting rod 25 and the end wall of the sliding cavity 23 on the side far away from the opening, a sliding plate 24 is arranged in the sliding groove 21 in a sliding manner, and one end of the pull rope 20 extending into the sliding groove 21 is connected with the sliding plate 24.

When the hub unit is used, the hub unit is installed at a designated position of a vehicle according to a conventional mode, and the hub unit can be normally used, if the limiting block 18 needs to be installed, under a normal state, the friction block 27 is partially positioned outside the friction cavity 19, at the moment, most of the first limiting rod 25 is positioned in the sliding cavity 23, at the same time, the second limiting rod 34 is positioned in the limiting cavity 35, the opening of the sliding cavity 23 is aligned with the first slot 26, at the same time, the second slot 33 is aligned with the limiting cavity 35, at the moment, the friction block 27 is in contact with and extrudes the magnetic assembly 15, at the same time, the magnet 29 adsorbs the magnetic assembly 15, the adsorption force is greater than the elastic force of the elastic spring 28, so that the friction block 27 is pressed into the friction cavity 19, the pull rope 20 is in a loose state, the first limiting rod 25 moves into the first slot 26 under the action of the pressure spring 22, at the connecting plate 31 drives the second limiting rod 34 to move into the second slot 33 under the action of the connecting spring 30, so that the restricting pieces 18 are connected to the flange 12 and the inner ring 11, respectively, thereby preventing the problem of relative rotation between the inner ring 11 and the flange 12.

The above description is only an embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any changes or modifications within the scope of the present invention by those skilled in the art are covered by the present invention.

Claims

1. The utility model provides a long-life car front wheel hub unit, includes ring flange (12), its characterized in that: an inner ring (11) is arranged on the outer side of one end of the flange plate (12), an outer ring (10) is arranged on the outer side of the inner ring (11), a roller (13) is arranged between the inner ring (11) and the outer ring (10), a retainer (14) for preventing the roller (13) from sliding abnormally is arranged on one side of the roller (13) close to the outer ring (10), a magnetic component (15) is arranged between one end of the outer ring (10) and the inner ring (11), a lower sealing component (16) is arranged between the other end of the outer ring (10) and the inner ring (11), an inner framework (17) is arranged on one side of the lower sealing component (16) far away from the outer ring (10), one side of the magnetic component (15) far away from the outer ring (10) is provided with a limiting block (18) located on the outer side of the flange plate (12), and a limiting mechanism is arranged in the limiting block (18).

2. A long-life automobile front wheel hub unit as set forth in claim 1, wherein: the limiting mechanism comprises magnets (29) symmetrically arranged in the limiting block (18) about the central axis of the flange plate (12), the magnets (29) can adsorb the magnetic assembly (15) after being electrified, friction cavities (19) with openings facing to one side close to the magnetic assembly (15) are symmetrically arranged on the outer sides of the magnets (29), and friction assemblies are arranged in the friction cavities (19).

3. A long-life automobile front wheel hub unit as set forth in claim 2, wherein: limiting mechanism still including setting up one of them friction chamber (19) are kept away from magnet (29) one side and opening direction with slide chamber (23) that friction chamber (19) are the same, the end wall intercommunication in one side of slide chamber (23) is provided with sliding tray (21), another friction chamber (19) are kept away from one side of magnet (29) be provided with opening direction with the spacing chamber (35) of the opening direction mutually perpendicular of friction chamber (19), one side intercommunication in spacing chamber (35) is provided with connects chamber (32), slide chamber (23) with be provided with in connecting chamber (32) with the spacing subassembly that friction subassembly cooperation was used.

4. A long-life automobile front wheel hub unit as set forth in claim 3, wherein: friction subassembly including slide set up in friction piece (27) in friction chamber (19), friction piece (27) with friction chamber (19) keep away from and be provided with between the open-ended side end wall elastic spring (28), friction piece (27) are kept away from friction chamber (19) open-ended side end face is provided with stay cord (20), the one end of stay cord (20) extends to respectively sliding tray (21) with connect in the chamber (32).

5. The long life automobile front wheel hub unit as set forth in claim 4, wherein: spacing subassembly is including setting up in ring flange (12) and the opening can with second slot (33) that spacing chamber (35) were aligned, it can move to slide in spacing chamber (35) second gag lever post (34) in second slot (33), slide in connecting chamber (32) and be provided with connecting plate (31) that second gag lever post (34) are connected, connecting plate (31) with it is close to connect chamber (32) be provided with between one side end wall in friction chamber (19) coupling spring (30), stay cord (20) extend to connect the one end in chamber (32) with connecting plate (31) are connected.

6. A long-life automobile front wheel hub unit as set forth in claim 5, wherein: the limiting assembly further comprises a first inserting groove (26) which is arranged in the inner ring (11) and the opening of which can be aligned with the opening of the sliding cavity (23), a first limiting rod (25) is arranged in the sliding cavity (23) in a sliding mode, the first limiting rod (25) can move into the first inserting groove (26), a pressure spring (22) is arranged between the first limiting rod (25) and the end wall, far away from the opening, of one side of the sliding cavity (23), a sliding plate (24) is arranged in the sliding groove (21) in a sliding mode, and the pull rope (20) extends to one end of the sliding groove (21) and is connected with the sliding plate (24).