CN211222896U

CN211222896U - Bicycle hub capable of bearing high torque

Info

Publication number: CN211222896U
Application number: CN201922163729.1U
Authority: CN
Inventors: 张逸丰
Original assignee: Ningbo Shenglu Bicycle Co ltd
Current assignee: Ningbo Shenglu Bicycle Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-08-11
Anticipated expiration: 2029-12-06

Abstract

The utility model discloses a can bear bicycle flower hub of high moment of torsion, including a flower hub casing, ring gear and a ratchet section of thick bamboo, be equipped with the equipment space that the axial runs through in the flower hub casing, the ring gear is located equipment space one end and is matched with the equipment space, the ring gear cover is located outside the ratchet section of thick bamboo and is used with the cooperation of a ratchet section of thick bamboo, be equipped with the butt platform in the equipment space, the butt has the gasket between butt platform and the ring gear. Set up the gasket between butt platform and ring gear, make the ring gear can bear great moment of torsion, satisfy the demand of using.

Description

Bicycle hub capable of bearing high torque

Technical Field

The utility model relates to a can bear bicycle flower hub of high moment of torsion.

Background

The general bicycle hub structure is that a gear ring and a ratchet barrel matched with the gear ring are assembled at one end of the axial inner part of a hub shell, the ratchet barrel part is positioned at the periphery of the hub shell, a hub penetrates through the ratchet barrel and the hub shell, two ends of the hub are fixedly connected to a frame, and the ratchet barrel is driven by torque and can sequentially drive the gear ring and the hub shell to rotate. The hub shell rotates to drive the wheel connected with the hub shell to rotate.

In a traditional hub structure, a ratchet wheel cylinder drives a toothed ring to rotate, and the toothed ring generates sliding teeth or displacement due to the fact that the toothed ring is subjected to overlarge torque instantly, so that the using effect is poor.

Disclosure of Invention

In order to solve the defects of the prior art, the utility model aims to provide a bicycle hub capable of bearing high torque.

In order to realize the above-mentioned purpose, the utility model discloses a can bear bicycle flower hub of high moment of torsion, including flower hub casing, ring gear and a ratchet section of thick bamboo, be equipped with the equipment space that the axial runs through in the flower hub casing, the ring gear is located equipment space one end and is matched with the equipment space, the ring gear cover is located ratchet section of thick bamboo and is used outward and with the cooperation of a ratchet section of thick bamboo, be equipped with the butt platform in the equipment space, the butt has the gasket between butt platform and the ring gear.

Further, both sides of the gasket are provided with anti-loosening teeth.

Further, a shaft sleeve is sleeved in the ratchet wheel cylinder.

Furthermore, the shaft sleeve comprises a sleeve body, and a plurality of lubricating bodies are embedded in the sleeve body or a lubricating layer is coated on the inner peripheral wall of the sleeve body.

Further, the lubricating body or the lubricating layer is made of graphite.

Furthermore, the sleeve body is made of copper.

Further, the ratchet barrel comprises a ratchet seat and a speed change gear disc seat, a plurality of grooves are formed in the periphery of the ratchet seat, pawl blocks are arranged in the grooves, ratchets are arranged on the inner peripheral wall of the gear ring, the gear ring is sleeved outside the ratchet seat, and the ratchets are matched with the pawl blocks.

Furthermore, the ratchet seat is also provided with a limiting step, the limiting step is close to the variable speed gear plate seat, and a waterproof oil seal is arranged between the limiting step and the gear ring.

Further, the outer diameter of the limiting step is larger than the inner diameter of the gear ring.

Further, be equipped with the meshing tooth on the periphery wall of ring gear, be equipped with interior tooth portion on the internal perisporium of equipment space one end, interior tooth portion cooperatees with the meshing tooth.

Compared with the prior art, the beneficial effects of the utility model are that: set up the gasket between butt platform and ring gear, make the ring gear can bear great moment of torsion, satisfy the demand of using.

Drawings

Fig. 1 is an exploded view of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is an assembly diagram of the middle ring gear, the ratchet barrel and the shaft sleeve of the present invention.

Fig. 4 is an assembly diagram of the ratchet barrel and the shaft sleeve of the present invention.

Fig. 5 is a schematic structural diagram of the middle gasket of the present invention.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

As shown in fig. 1-5, a bicycle hub that can bear high moment of torsion, including hub shell 1, ring gear 2 and a ratchet section of thick bamboo 3, be equipped with the equipment space 11 that the axial runs through in the hub shell 1, be equipped with a plurality of butt platforms 12 in the equipment space 11, ring gear 2 is located equipment space 11 one end and cooperatees with equipment space 11, ring gear 2 cover locate ratchet section of thick bamboo 3 outside and with the cooperation of a ratchet section of thick bamboo 3 use, be close to butt platform 12 and the ring gear 2 between butt has gasket 4, gasket 4 can play fine positioning action to ring gear 2, make ring gear 2 can bear great moment of torsion.

The both sides of gasket 4 all are equipped with locking tooth 41, set up locking tooth 41 in both sides, make between gasket 4 and the butt platform 12 and between gasket 4 and the ring gear 2 the butt power stronger, the moment of torsion that the ring gear 2 can bear is bigger.

The ratchet barrel 3 is internally sleeved with a shaft sleeve 5, the shaft sleeve 5 comprises a sleeve body 51, and the sleeve body 51 is embedded with a plurality of lubricating bodies 52 or the lubricating layer is coated on the inner peripheral wall of the sleeve body 51. The lubricating body 52 or the lubricating layer is preferably made of graphite, and the sleeve body 51 is preferably made of copper. In this embodiment, the sleeve 51 is embedded with a plurality of lubricants 52 made of graphite, one end of each lubricant 52 contacts with the center of a vehicle, and the other end of each lubricant 52 contacts with the inner peripheral wall of the ratchet barrel 3, and the lubricants 52 are cylindrical, so that the lubricating effect of graphite is fully utilized, the abrasion between the center of a vehicle 6 and the ratchet barrel 3 caused by too large stress is reduced, and the service life of the center of a vehicle and the ratchet barrel 3 is prolonged.

In this embodiment, the ratchet barrel 3 includes a ratchet seat 31 and a speed change gear plate seat 32, the speed change gear plate seat 32 is located outside the hub shell 1, a plurality of grooves 311 are formed in the periphery of the ratchet seat 31, pawl blocks 7 are arranged in the grooves 311, the pawl blocks 7 are linked through C-shaped retaining rings 8, ratchets 21 are arranged on the inner peripheral wall of the gear ring 2, the gear ring 2 is sleeved outside the ratchet seat 31, and the ratchets 21 are matched with the pawl blocks 7 to realize one-way transmission between the ratchet barrel 3 and the gear ring 2.

Still be equipped with at least one spacing step 312 on the ratchet seat 31, spacing step 312 is close to variable speed gear plate seat 32, the external diameter of spacing step 312 is greater than the internal diameter of ring gear 2, keeps away from be equipped with water proof oil seal 9 between the spacing step of variable speed gear plate seat 32 and the ring gear, water proof oil seal and equipment space looks adaptation not only can play the waterproof sealing effect to the colored hub, but also can be further spacing to the ring gear through the effect of water proof oil seal and gasket.

In this embodiment, the outer peripheral wall of the gear ring 2 is provided with the engaging teeth 22, the inner peripheral wall at one end of the assembly space 11 is provided with the inner tooth portion 13, the inner tooth portion 13 is matched with the engaging teeth 22, and the gear ring 2 can be further improved to bear a high torque by the tooth matching. Of course, the toothed ring and the hub shell can also be in threaded connection, and the torque which can be borne by the toothed ring in the threaded connection is smaller than the torque which can be borne by the toothed ring in the tooth fit connection.

Through the tooth cooperation between ring gear 2 and the flower hub casing 1, waterproof oil seal 9 and gasket 4 to the spacing of ring gear 2 and locking tooth 41 to the butt power of ring gear, can improve the moment of torsion bearing capacity of ring gear 2 greatly, effectively solved the ring gear because of receiving the problem of high moment of torsion effect smooth tooth or displacement in the twinkling of an eye, make whole flower hub more stable in the use, the result of use is better.

Claims

1. The utility model provides a can bear bicycle flower hub of high moment of torsion, includes hub shell, ring gear and a ratchet section of thick bamboo, be equipped with the equipment space that the axial runs through in the hub shell, the ring gear is located equipment space one end and is matched with the equipment space, the ring gear cover is located outside the ratchet section of thick bamboo and is used its characterized in that with the cooperation of a ratchet section of thick bamboo: the assembly space is internally provided with a butt joint table, and a gasket is abutted between the butt joint table and the gear ring.

2. A high torque capable bicycle hub according to claim 1, wherein: and anti-loosening teeth are arranged on two sides of the gasket.

3. A high torque capable bicycle hub according to claim 1, wherein: the ratchet wheel cylinder is internally sleeved with a shaft sleeve.

4. A high torque capable bicycle hub according to claim 3, wherein: the shaft sleeve comprises a sleeve body, wherein a plurality of lubricating bodies are embedded in the sleeve body or a lubricating layer is coated on the inner peripheral wall of the sleeve body.

5. A high torque capable bicycle hub according to claim 4, wherein: the lubricating body or the lubricating layer is made of graphite.

6. A high torque capable bicycle hub according to claim 4, wherein: the sleeve body is made of copper.

7. A high torque capable bicycle hub according to claim 1, wherein: the ratchet barrel comprises a ratchet seat and a speed-changing gear disc seat, a plurality of grooves are formed in the periphery of the ratchet seat, pawl blocks are arranged in the grooves, ratchets are arranged on the inner peripheral wall of the gear ring, the gear ring is sleeved outside the ratchet seat, and the ratchets are matched with the pawl blocks.

8. A high torque capable bicycle hub according to claim 7, wherein: the ratchet wheel seat is further provided with a limiting step, the limiting step is close to the variable speed gear plate seat, and a waterproof oil seal is arranged between the limiting step and the gear ring.

9. A high torque capable bicycle hub according to claim 8, wherein: the outer diameter of the limiting step is larger than the inner diameter of the gear ring.

10. A high torque capable bicycle hub according to claim 1, wherein: the outer peripheral wall of the gear ring is provided with meshing teeth, the inner peripheral wall at one end of the assembling space is provided with an inner tooth part, and the inner tooth part is matched with the meshing teeth.