CN220227564U - Bicycle hub capable of preventing bearing from loosening and bicycle - Google Patents

Abstract

The utility model discloses a bicycle hub capable of preventing a bearing from loosening and a bicycle, and relates to the technical field of vehicles; the axial locking device comprises a central shaft, a shaft shell assembly and a foundation tower assembly, wherein the shaft shell assembly and the foundation tower assembly are sleeved on the central shaft, a first locating ring and a second locating ring are circumferentially arranged on the outer side of the central shaft, the shaft shell assembly comprises a shell, a first bearing, a second bearing and a first side sleeve, the shell is sleeved on the central shaft through the first bearing and the second bearing, the first side sleeve is sleeved on one end of the central shaft, the second bearing is sleeved on the central shaft, one end of the second side sleeve is propped against the side surface of the second locating ring, the shaft shell assembly further comprises an axial locking ring, a first clamping ring is circumferentially arranged on the outer side of the first side sleeve, the axial locking ring is sleeved on the first side sleeve, and a plurality of grooves are uniformly formed in the inner wall of the axial locking ring at circumferential intervals; the utility model can ensure that the first bearing cannot loosen, thereby ensuring the normal operation of the bearing, no friction and abnormal sound, and ensuring the service life of the hub structure.

Description

Bicycle hub capable of preventing bearing from loosening and bicycle

Technical Field

The utility model relates to the field of vehicles, in particular to a bicycle hub capable of preventing a bearing from loosening and a bicycle.

Background

The bicycle hub is commonly called as a hub barrel, and is a barrel outside a shaft and connected with spokes. Conventional spoke attachment means include two types: radial and X cross, wherein, radial spoke connected mode is with the one end connection wheel hub of spoke, and the flower drum casing is connected to the other end, and corresponds flower drum casing hookup location department, and the inside bearing that is provided with of flower drum casing, and because radial pulling force of spoke is very big, the flower drum casing can produce radial deformation in the time of this radial pulling force effect, and the diameter grow of flower drum casing promptly to lead to producing not hard up between bearing outer lane and the flower drum casing inner wall.

For example, a drum structure and a bicycle with a patent number 201510522523.7 disclose an axle center, a shaft housing assembly and a tower foundation assembly which are sleeved outside the axle center, wherein the shaft housing assembly comprises a shaft housing left bearing and a left flange which are positioned at the left end of the shaft housing, and a shaft housing right bearing and a right flange which are positioned at the right end of the shaft housing, a plurality of mounting holes for arranging spokes in a crossed manner are circumferentially and uniformly distributed on the left flange, and a plurality of mounting holes for arranging spokes in a radial manner are circumferentially and uniformly distributed on the right flange. In this patent, the hub is connected through the mounting hole to one end of spoke, because the radial pulling force of spoke is very big, and under this radial pulling force's effect, the axle housing can produce radial deformation over time, and the diameter grow of axle housing promptly to lead to producing not hard up between the inner wall of the outer lane of axle housing right bearing and the axle housing, the bicycle is at the in-process of going, produces friction and abnormal sound between axle housing right bearing and the axle housing, this makes flower-drum structure damage easily, also has the potential safety hazard to the bicycle is gone.

Disclosure of Invention

The utility model discloses a bicycle hub capable of preventing a bearing from loosening and a bicycle, and aims to solve the technical problem that the bearing and a hub shell are loosened.

In order to solve the technical problems, the utility model provides the following optimization technical scheme:

the utility model provides a prevent not hard up bicycle flower-drum of bearing, includes axis, axle housing subassembly and foundation tower subassembly, the axle housing subassembly with foundation tower subassembly is in all overlaps on the axis, the outside circumference of axis is provided with first holding ring and second holding ring, the axle housing subassembly includes casing, first bearing, second bearing and first cover, the casing passes through first bearing with the second bearing overlaps on the axis, the one end of first bearing supports the side of first holding ring and overlaps on the axis, first cover is in one end of axis and its one end supports the other end of first bearing, the second bearing cover is in the axis and its one end supports the side of second holding ring, the axle housing subassembly still includes axial locking ring, the outside circumference of first cover is provided with first rand, the axial locking ring overlaps on the first cover, the both ends of axial locking ring support respectively the other end of first bearing and one side of first bearing, the inner wall circumference interval of axial locking ring is provided with a plurality of rands evenly.

Further, a containing cavity is formed between one end of the shell and the middle shaft; the foundation tower assembly comprises a foundation tower, a first space ring, a second space ring, a third bearing and a fourth bearing, wherein the first space ring and the second space ring are sleeved on the central shaft, the foundation tower is sleeved on the central shaft through the third bearing and the fourth bearing, one end of the foundation tower is located in the containing cavity, the third bearing is located between the first space ring and the second space ring, and one end of the fourth bearing abuts against the second space ring.

Further, the axle housing assembly further comprises a second side sleeve, the second side sleeve is sleeved at the other end of the center axle, and one end of the second side sleeve abuts against the other end of the fourth bearing.

Further, a second clamping ring is circumferentially arranged on the outer side of the second side sleeve; the foundation tower assembly further comprises a foundation tower sealing ring sleeved on the second edge sleeve, and the foundation tower sealing ring is located between the second clamping ring and the fourth bearing.

Further, a limiting groove is circumferentially formed in the outer side of the foundation tower, and a tooth part is formed in one end, close to the fourth bearing, of the foundation tower; the base tower assembly further comprises a gear ring and a die opening sealing ring, the gear ring is sleeved on the outer side of the tooth part, and the die opening sealing ring is sleeved on the base tower and is positioned in the limiting groove; the gear ring and the die opening sealing ring are propped against the inner wall of the shell.

Further, a first flange and a second flange are circumferentially arranged on the outer side of the shell, and the first flange and the second flange are respectively positioned at one end of the shell, which is close to the first edge sleeve, and one end of the shell, which is close to the second edge sleeve; the first flange is provided with a plurality of first mounting holes for radial connection spokes at circumferential intervals uniformly, and the second flange is provided with a plurality of second mounting holes for cross connection spokes at circumferential intervals uniformly.

Further, an external thread is arranged on the outer wall of the axial locking ring, and an internal thread corresponding to the axial locking ring is arranged on the inner wall of the shell.

The utility model also provides another embodiment: a bicycle comprises the bicycle hub capable of preventing the bearing from loosening.

Further, the bicycle of the present utility model further comprises a hub, a first spoke and a second spoke, wherein the first spoke is in radial connection with the hub and the first mounting hole, and the second spoke is in cross connection with the hub and the second mounting hole.

Compared with the prior art, the utility model has the following beneficial effects:

the bicycle hub capable of preventing the bearing from loosening is provided with the axial locking ring, and the axial locking ring is propped against the first bearing to lock the first bearing between the axial locking ring and the first positioning ring, so that the axial locking of the first bearing is realized; when the shell is radially pulled to deform, the first bearing is locked between the axial locking ring and the first positioning ring, so that looseness is avoided, normal operation of the bearing is guaranteed, friction is avoided, abnormal sound is avoided, and the service life of the hub structure is guaranteed.

Drawings

Fig. 1 is a schematic overall structure of the present utility model.

Fig. 2 is an exploded view of the overall structure of the present utility model.

Fig. 3 is a schematic view of the connection of the present utility model to a hub.

Fig. 4 is an enlarged view of a of fig. 3.

Fig. 5 is a cross-sectional view of the connection of the present utility model to a hub.

Fig. 6 is an enlarged view at B of fig. 5.

Fig. 7 is an enlarged view at C of fig. 5.

FIG. 8 is a schematic view of the structure of the bottom bracket of the present utility model.

FIG. 9 is a schematic view of the structure of the base tower of the present utility model.

Fig. 10 is a schematic structural view of the axial locking ring of the present utility model.

In the figure: 1. a center shaft; 2. a first positioning ring; 3. a second positioning ring; 4. a housing; 5. a first bearing; 6. a second bearing; 7. a first edge cover; 8. an axial locking ring; 9. a first collar; 10. a groove; 11. a base tower; 12. a first spacer; 13. a second spacer ring; 14. a third bearing; 15. a fourth bearing; 16. a second edge sleeve; 17. a second collar; 18. a base tower sealing ring; 19. a limit groove; 20. tooth parts; 21. a gear ring; 22. opening a die sealing ring; 23. a first flange; 24. a second flange; 25. a first mounting hole; 26. a second mounting hole; 27. a first spoke; 28. a second spoke.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.

Referring to fig. 1-10, a bicycle hub capable of preventing looseness of bearings comprises a center shaft 1, a shaft housing assembly and a base tower assembly, wherein the shaft housing assembly and the base tower assembly are sleeved on the center shaft 1, a first positioning ring 2 and a second positioning ring 3 are circumferentially arranged on the outer side of the center shaft 1, the shaft housing assembly comprises a shell 4, a first bearing 5, a second bearing 6 and a first side sleeve 7, the shell 4 is sleeved on the center shaft 1 through the first bearing 5 and the second bearing 6, one end of the first bearing 5 is propped against the side surface of the first positioning ring 2 and sleeved on the center shaft 1, the first side sleeve 7 is sleeved on one end of the center shaft 1 and one end of the first side sleeve is propped against the other end of the first bearing 5, namely the first side sleeve 7 presses the first bearing 5 on the first positioning ring 2, the second bearing 6 is sleeved on the center shaft 1, one end of the second bearing is propped against the side surface of the second positioning ring 3, the shaft housing assembly further comprises an axial locking ring 8, a first clamping ring 9 is circumferentially arranged on the outer side of the first side sleeve 7, the axial locking ring 8 is sleeved on the first side sleeve 7, two ends of the axial locking ring 8 are respectively propped against the other end of the first bearing 5 and one side of the first clamping ring 9, namely, the axial locking ring 8 tightly presses the first bearing 5 on the first positioning ring 2 to axially lock the first bearing 5, when the housing 4 is radially pulled to deform, a gap exists between the inner wall of the housing 4 and the outer wall of the first bearing 5, the first bearing 5 is not loosened, friction is not generated with the inner wall of the housing 4, abnormal sound of the first bearing 5 is prevented, a plurality of grooves 10 are uniformly formed in the inner wall of the axial locking ring 8 at circumferential intervals, the arrangement of the grooves 10 is conducive to uniform locking of the axial locking ring 8 to the outer wall of the first edge sleeve 7, and the stability is stronger, so that the stability of the first bearing 5 locked on the first positioning ring 2 is ensured.

In this embodiment, a receiving cavity is formed between one end of the housing 4 and the bottom bracket 1; the base tower 11 assembly comprises a base tower 11, a first spacer ring 12, a second spacer ring 13, a third bearing 14 and a fourth bearing 15, wherein the first spacer ring 12 and the second spacer ring 13 are sleeved on the center shaft 1, the base tower 11 is sleeved on the center shaft 1 through the third bearing 14 and the fourth bearing 15, one end of the base tower 11 is positioned in the accommodating cavity, one end of the base tower 11 props against the second bearing 6 to lock the second bearing 6 on the second positioning ring 3, the third bearing 14 is positioned between the first spacer ring 12 and the second spacer ring 13, the first spacer ring 12 and the second spacer ring 13 play a role of compacting the third bearing 14, and one end of the fourth bearing 15 props against the second spacer ring 13.

In this embodiment, the axle housing assembly further includes a second edge sleeve 16, the second edge sleeve 16 is sleeved on the other end of the bottom bracket axle 1, one end of the second edge sleeve 16 abuts against the other end of the fourth bearing 15, and the second edge sleeve 16 plays a role in compressing the fourth bearing 15 on the second spacer ring 13.

In the present embodiment, a second collar 17 is circumferentially disposed on the outer side of the second collar 16; the foundation tower assembly further comprises a foundation tower sealing ring 18, the foundation tower sealing ring 18 is sleeved on the second side sleeve 16, and the foundation tower sealing ring 18 is positioned between the second clamping ring 17 and the fourth bearing 15; when the base tower 11 is sleeved on the middle shaft 1, the base tower 11 is partially sleeved on the second side sleeve 16, and the base tower sealing ring 18 has buffering and sealing effects on the connection between the second side sleeve 16 and the base tower 11.

In this embodiment, a limiting groove 19 is circumferentially arranged on the outer side of the base tower 11, and a tooth portion 20 is arranged at one end of the base tower 11, which is close to the fourth bearing 15; the foundation tower assembly further comprises a gear ring 21 and a die opening sealing ring 22, wherein the gear ring 21 is sleeved on the outer side of the tooth part 20, and the die opening sealing ring 22 is sleeved on the foundation tower 11 and is positioned in the limiting groove 19; the gear ring 21 and the die opening sealing ring 22 are propped against the inner wall of the shell 4, and the gear ring 21 and the die opening sealing ring 22 have buffering and sealing effects on the connection of the foundation tower 11 and the shell 4.

In this embodiment, a first flange 23 and a second flange 24 are circumferentially disposed on the outer side of the housing 4, and the first flange 23 and the second flange 24 are respectively located at one end of the housing 4 near the first edge cover 7 and one end near the second edge cover 16; the first flange 23 is provided with a plurality of first mounting holes 25 for radial connection spokes at regular intervals in the circumferential direction, and the second flange 24 is provided with a plurality of second mounting holes 26 for cross connection spokes at regular intervals in the circumferential direction.

In this embodiment, the outer wall of the axial locking ring 8 is provided with an external thread, and the inner wall of the housing 4 is provided with an internal thread corresponding to the axial locking ring 8, specifically, the axial locking ring 8 is screwed on the internal thread of the inner wall of the housing 4 through the external thread thereof.

The utility model also provides another embodiment: the bicycle comprises the bicycle hub capable of preventing the bearing from loosening, and further comprises a hub, first spokes 27 and second spokes 28, wherein the first spokes 27 are in radial connection with the hub and the first mounting holes 25, and the second spokes 28 are in cross connection with the hub and the second mounting holes 26.

During installation, the foundation tower assembly is firstly installed on the central shaft 1, the first bearing 5, the second bearing 6, the first side sleeve 7 and the second side sleeve 16 in the shaft shell assembly are installed on the central shaft 1, then the axial locking ring 8 is screwed into the shell 4, specifically, the external threads of the outer surface of the axial locking ring 8 are matched with the internal threads of the inner wall of the shell 4, so that the axial locking ring 8 is connected inside the shell 4.

The foregoing is only a specific embodiment of the utility model to enable those skilled in the art to understand or practice the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. The utility model provides a prevent not hard up bicycle flower-drum of bearing, includes axis, axle housing subassembly and foundation tower subassembly, the axle housing subassembly with the foundation tower subassembly is in on the axis, the outside circumference of axis is provided with first holding ring and second holding ring, the axle housing subassembly includes casing, first bearing, second bearing and first cover, the casing passes through first bearing with the second bearing cover is in on the axis, the one end of first bearing supports the side of first holding ring and overlaps on the axis, first cover is in one end of axis and its one end supports the other end of first bearing, the second bearing cover is in on the axis and its one end supports the side of second holding ring, its characterized in that, the axle housing subassembly still includes axial locking ring, the outside circumference of first cover is provided with first rand, axial locking ring cover is in on the first cover, the both ends of axial locking ring support respectively the other end of first bearing and one side of first bearing, the inner wall circumference of axial locking ring is provided with a plurality of rand evenly spaced locking ring circumference.

2. The hub of a bicycle for preventing looseness of a bearing of claim 1, wherein a receiving cavity is formed between one end of the housing and the bottom bracket; the foundation tower assembly comprises a foundation tower, a first space ring, a second space ring, a third bearing and a fourth bearing, wherein the first space ring and the second space ring are sleeved on the central shaft, the foundation tower is sleeved on the central shaft through the third bearing and the fourth bearing, one end of the foundation tower is located in the containing cavity, the third bearing is located between the first space ring and the second space ring, and one end of the fourth bearing abuts against the second space ring.

3. The bicycle hub with bearing loosening prevention of claim 2, wherein the axle housing assembly further comprises a second rim sleeve that is received over the other end of the central axle, one end of the second rim sleeve abutting the other end of the fourth bearing.

4. A bicycle hub with bearing loosening prevention as defined in claim 3, wherein a second collar is circumferentially disposed on the outer side of the second rim; the foundation tower assembly further comprises a foundation tower sealing ring sleeved on the second edge sleeve, and the foundation tower sealing ring is located between the second clamping ring and the fourth bearing.

5. The bicycle hub for preventing looseness of a bearing according to claim 2, wherein a limit groove is circumferentially formed in the outer side of the base tower, and a tooth part is formed at one end, close to the fourth bearing, of the base tower; the base tower assembly further comprises a gear ring and a die opening sealing ring, the gear ring is sleeved on the outer side of the tooth part, and the die opening sealing ring is sleeved on the base tower and is positioned in the limiting groove; the gear ring and the die opening sealing ring are propped against the inner wall of the shell.

6. A bicycle hub with bearing loosening prevention as defined in claim 3, wherein a first flange and a second flange are circumferentially disposed on the outside of said housing, said first flange and said second flange being located at an end of said housing adjacent said first side sleeve and an end of said housing adjacent said second side sleeve, respectively; the first flange is provided with a plurality of first mounting holes for radial connection spokes at circumferential intervals uniformly, and the second flange is provided with a plurality of second mounting holes for cross connection spokes at circumferential intervals uniformly.

7. A bicycle hub with bearing loosening prevention as defined in claim 1, wherein the outer wall of the axial locking ring is provided with external threads and the inner wall of the housing is provided with internal threads corresponding to the axial locking ring.

8. A bicycle comprising a bicycle hub according to any one of claims 1-7, which prevents loosening of the bearing.

9. The bicycle of claim 8, further comprising a hub, a first spoke and a second spoke, the first spoke radially connecting the hub and the first mounting hole, the second spoke interdigitated with the hub and the second mounting hole.