Bearing limiting structure of bicycle hub

Abstract

The application relates to a bicycle hub with bearing limiting structure, belonging to the technical field of bicycle hubs, which comprises a hub cylinder, the left and right sides of the hub cylinder are fixed with mounting rings, a hub shaft body is arranged between the two mounting rings and the inner side of the hub cylinder, the inner side of the left mounting ring is provided with a fixed limiting assembly, the inner side of the right mounting ring is provided with an assembly limiting assembly, the fixed limiting assembly comprises a fixed bearing fixedly installed on the outer side of the hub shaft body, a first limiting ring fixedly installed on the inner side of the hub cylinder, an annular abutting plate abutting against the left side of the fixed bearing, a plurality of plug-in rods fixedly installed on the right side of the annular abutting plate, a plurality of plug-in grooves arranged on the left side of the left mounting ring, and a plurality of first communication holes arranged on the left side of the annular abutting plate. The bicycle hub with bearing limiting structure can effectively limit the bearing and will not excessively affect the actual transmission of the bearing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bicycle hub, in particular to a bicycle hub with bearing limiting structure. BACKGROUND

[0002] The hub is a structural component for bicycle transmission, and the hub has an iron hub and an aluminum hub. The iron hub is a common bicycle hub for riding at home, and the aluminum hub is generally a more high-end hub, which is used as a hub for mountain bikes, performance bikes, road bikes, etc. In order to ensure the smoothness and stability of the hub transmission, the inside of the hub usually adopts a rotary transmission mode connected by bearings to transmit through the shaft.

[0003] In the existing technology, how to ensure the stability of the bearing is a problem to be solved. For example, the bicycle hub with bearing limiting structure disclosed in Chinese Patent No. CN108058532A includes a drum body, a connecting drum shaft is arranged in the drum body, a rolling bearing and a locking nut are arranged at both ends of the connecting drum shaft, a tubular limiting tube is sleeved on the connecting drum shaft, both ends of the limiting tube abut against the rolling bearing, the limiting tube is made of steel, and the limiting tube abuts against the rolling bearing, so that the rolling bearing is clamped by the locking nut and the limiting tube at the same time, effectively preventing the rolling bearing from shifting, and effectively improving the reliability of the bicycle hub.

[0004] However, the structure of the present application can ensure the stability of the bearing, but there are still some disadvantages in application. In use, the limiting tube abuts against the rolling bearing, and the locking nut is locked and clamped in cooperation with the limiting tube. The limiting tube is located outside the connecting drum shaft, so that the inner ring of the rolling bearing will inevitably rub between the limiting tube and the locking nut when the connecting drum shaft rotates in cooperation with the inner ring of the rolling bearing. This greatly increases the consumption of power, resulting in a not smooth rotary transmission process, which affects the power transmission of the bicycle hub. Based on the innovation of the structure, the present application provides a bicycle hub with bearing limiting structure to solve the above problems. SUMMARY

[0005] (I) Technical problems solved

[0006] In view of the shortcomings of the prior art, the present application provides a bicycle hub with bearing limiting structure, which has the advantages of effectively limiting the bearing without affecting the actual transmission of the bearing. The problem of the prior art that the power loss is increased due to the friction between the structures during actual use of the bicycle hub with bearing limiting structure, thereby affecting the power transmission efficiency of the whole bicycle hub, is solved.

[0007] (II) Technical solutions

[0008] In order to achieve the above-mentioned effective limiting of the bearing without affecting the actual transmission purpose of the bearing, the application provides the following technical scheme: a bicycle hub with a bearing limiting structure, comprising a hub barrel, the left and right sides of the hub barrel are fixed with mounting rings, a hub shaft body is arranged between the two mounting rings and the inner side of the hub barrel, a fixed limiting assembly is arranged on the inner side of the left mounting ring, and an assembly limiting assembly is arranged on the inner side of the right mounting ring.

[0009] The fixed limiting assembly comprises a fixed bearing fixedly installed on the outer side of the hub shaft body, a first limiting ring fixedly installed on the inner side of the hub barrel, an annular abutting plate abutting against the left side of the fixed bearing, a plurality of insertion rods fixedly installed on the right side of the annular abutting plate, a plurality of insertion grooves formed on the left side of the left mounting ring, and a plurality of first communication holes formed on the left side of the annular abutting plate.

[0010] The assembly limiting assembly comprises an assembly bearing sleeved on the outer side of the hub shaft body, a plurality of arc-shaped limiting blocks fixedly installed on the outer sides of the assembly bearing and the fixed bearing, a plurality of limiting grooves formed on the inner side of the mounting ring and used for inserting and sliding the corresponding arc-shaped limiting blocks, a plurality of connecting blocks fixedly installed on the outer side of the hub shaft body, a plurality of connecting grooves formed on the inner side of the assembly bearing and used for inserting and sliding the corresponding connecting blocks, a sliding barrel slidably connected to the outer side of the hub shaft body, a blocking block fixedly installed on the left side of the sliding barrel, a circular groove formed on the left side of the blocking block, a plurality of positioning blocks fixedly installed on the left side of the blocking block, a plurality of positioning grooves formed on the right side of the right mounting ring, a second limiting ring fixedly installed on the inner side of the hub barrel, and a plurality of second communication holes formed on the right side of the blocking block.

[0011] Further, the outer side of the fixed bearing is in abutment with the inner side of the left mounting ring, and the left side of the first limiting ring is in abutment with the right side of the fixed bearing.

[0012] Further, the inner diameter of the annular abutting plate is greater than the inner diameter of the fixed bearing, and the right side of the annular abutting plate is in abutment with the left side of the left mounting ring.

[0013] Further, the insertion rods are triangular, and the insertion rods can be inserted into the inner sides of the corresponding insertion grooves.

[0014] Further, the number of the first communication holes and the second communication holes is equal, the inner sides of the first communication holes and the second communication holes are provided with screws, and the sides opposite to each other of the two mounting rings are provided with a plurality of internal thread grooves, which are used for threadedly connecting the corresponding screws on the same side.

[0015] Further, the inner side of the assembled bearing is attached to the outer side of the hub shaft body, the limiting groove extends to the inner side of the hub drum body, and the side opposite to the limiting groove on both sides is provided as an opening.

[0016] Further, the left side of the connecting groove is provided as an opening, and the inner diameter of the sliding drum is greater than the outer diameter of the hub shaft body.

[0017] Further, the left side of the blocking block is provided with a through hole communicating with the inside of the sliding drum, and the left and right sides of the sliding drum are provided as openings.

[0018] Further, the inner diameter of the circular groove is greater than the inner diameter of the assembled bearing, and the positioning groove is provided for the corresponding positioning block.

[0019] Further, the left side of the blocking block abuts against the assembled bearing and the right side of the right side mounting ring, and the right side of the second limiting ring abuts against the left side of the assembled bearing.

[0020] (Three) beneficial effects

[0021] Compared with the prior art, the present application provides a bicycle hub with bearing limiting structure, which has the following beneficial effects:

[0022] 1. The bicycle hub with bearing limiting structure can preliminarily install and limit the fixed bearing and the assembled bearing through the cooperation between the arc-shaped limiting block and the limiting groove, so as to meet the stable installation requirements of the fixed bearing and the assembled bearing. Through the use of the annular abutting plate, the fixed bearing can be abutted and limited in space, so as to prevent the phenomenon of deviation and ensure the stability of the fixed bearing.

[0023] 2. The bicycle hub with bearing limiting structure can limit the assembled bearing in space through the abutting cooperation between the second limiting ring and the blocking block, so as to prevent the phenomenon of deviation and ensure the stability of the assembled bearing. Under the action of the circular groove, the inner ring of the assembled bearing can be prevented from being contacted, thereby reducing the friction between the structures and protecting the transmission of power, so that the transmission of power can maintain high efficiency and stability. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A bicycle hub structure with bearing limiting structure is provided.

[0025] Figure 2 A right view schematic diagram of the annular abutting plate connecting structure in the bicycle hub structure with bearing limiting structure is provided.

[0026] Figure 3A partial enlarged view of part A of a bicycle hub structure with bearing limiting structure according to the present application is shown in the figure.

[0027] Figure 4 A perspective view of the blocking block connecting structure of the bicycle hub structure with bearing limiting structure according to the present application is shown in the figure.

[0028] In the figure: 1 hub cylinder, 2 mounting ring, 3 hub shaft main body, 400 fixed limiting assembly, 401 fixed bearing, 402 first limiting ring, 403 annular abutment plate, 404 insertion rod, 405 insertion slot, 406 first communication hole, 500 assembly limiting assembly, 501 assembly bearing, 502 arc-shaped limiting block, 503 limiting slot, 504 connecting block, 505 connecting slot, 506 sliding cylinder, 507 blocking block, 508 circular slot, 509 positioning block, 510 positioning slot, 511 second limiting ring, 512 second communication hole. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0030] Please refer to Figures 1 to 4 The present application provides a technical solution: a bicycle hub with bearing limiting structure, comprising a hub cylinder 1, mounting rings 2 are fixed to the left and right sides of the hub cylinder 1, a hub shaft main body 3 is arranged between the inner sides of the two mounting rings 2 and the hub cylinder 1, a fixed limiting assembly 400 is installed on the inner side of the left mounting ring 2, and an assembly limiting assembly 500 is installed on the inner side of the right mounting ring 2.

[0031] In the above embodiments, the bearing can be stably limited, and the friction between structures can be reduced, thereby protecting the transmission of power and maintaining the efficiency and stability of power transmission.

[0032] In the present embodiment, the fixed limiting assembly 400 is a structure for limiting the fixed bearing 401.

[0033] For example Figure 1 And Figure 2As shown, the fixed limiting assembly 400 includes a fixed bearing 401 fixedly installed on the outer side of the hub shaft body 3, a first limiting ring 402 fixedly installed on the inner side of the hub barrel 1, an annular abutting plate 403 abutting on the left side of the fixed bearing 401, a plurality of plug-in rods 404 fixedly installed on the right side of the annular abutting plate 403, a plurality of plug-in grooves 405 opened on the left side of the left side mounting ring 2, and a plurality of first communication holes 406 opened on the left side of the annular abutting plate 403.

[0034] It should be noted that the outer side of the fixed bearing 401 is in close contact with the inner side of the left side mounting ring 2, the left side of the first limiting ring 402 is in abutment with the right side of the fixed bearing 401, and the inner diameter of the first limiting ring 402 is greater than the outer diameter of the inner ring of the fixed bearing 401, so that the first limiting ring 402 can abut and limit the right side of the fixed bearing 401.

[0035] In addition, the inner diameter of the annular abutting plate 403 is greater than the inner diameter of the fixed bearing 401, and the right side of the annular abutting plate 403 is in abutment with the left side of the left side mounting ring 2. Specifically, the inner diameter of the annular abutting plate 403 is greater than the outer diameter of the inner ring of the fixed bearing 401, so that the annular abutting plate 403 does not contact the inner ring of the fixed bearing 401, thereby avoiding friction between the structures. At the same time, the abutting action between the annular abutting plate 403 and the left side mounting ring 2 can further improve the stability of the abutting limiting of the annular abutting plate 403 to the fixed bearing 401.

[0036] At the same time, the plug-in rod 404 is a triangular column, and the plug-in rod 404 can be plugged into the inner side of the corresponding plug-in groove 405, so that the annular abutting plate 403 can be stably installed on the left side of the left side mounting ring 2 through the plug-in positioning action between the plug-in rod 404 and the plug-in groove 405.

[0037] The assembly limiting assembly 500 in this embodiment is a structure for limiting and stably installing the assembly bearing 501.

[0038] As Figure 1 , Figure 3 and Figure 4As shown, the assembly limiting component 500 includes an assembly bearing 501 sleeved outside the hub shaft body 3, a plurality of arc-shaped limiting blocks 502 fixed outside the assembly bearing 501 and the fixed bearing 401 respectively, a plurality of limiting grooves 503 opened inside the mounting ring 2 and used for inserting and sliding the corresponding arc-shaped limiting blocks 502, a plurality of connecting blocks 504 fixed outside the hub shaft body 3, a plurality of connecting grooves 505 opened inside the assembly bearing 501 and used for inserting and sliding the corresponding connecting blocks 504, a sliding cylinder 506 slidingly connected outside the hub shaft body 3, a blocking block 507 fixed to the left side of the sliding cylinder 506, a circular groove 508 opened to the left side of the blocking block 507, a plurality of positioning blocks 509 fixed to the left side of the blocking block 507, a plurality of positioning grooves 510 opened to the right side of the right mounting ring 2, a second limiting ring 511 fixed inside the hub cylinder 1, and a plurality of second communication holes 512 opened to the right side of the blocking block 507.

[0039] It should be noted that the number of the first communication holes 406 and the second communication holes 512 is equal, and the inside of the first communication holes 406 and the second communication holes 512 is provided with a screw, and the side opposite to the two mounting rings 2 is provided with a plurality of internally threaded grooves, which are used for threadedly connecting with the corresponding screws on the same side, so that the blocking block 507 and the annular abutting plate 403 can be connected and fixed to the outside of the corresponding mounting ring 2 through the screws, and the inside of the assembly bearing 501 is attached to the outside of the hub shaft body 3, so that the assembly bearing 501 can support the outside of the hub shaft body 3 and enable it to rotate stably.

[0040] In addition, the limiting grooves 503 extend to the inside of the hub cylinder 1, and the sides opposite to the two limiting grooves 503 are both provided in an open manner, so that the arc-shaped limiting blocks 502 can normally enter the inside of the corresponding limiting grooves 503 from the outside, and the left side of the connecting groove 505 is provided in an open manner, so that the assembly bearing 501 can move from right to left, and the connecting groove 505 normally moves to the outside of the corresponding connecting block 504 to meet the connecting and limiting requirements of the inner ring of the assembly bearing 501 and the outside of the hub shaft body 3.

[0041] Meanwhile, the inner diameter of the sliding cylinder 506 is greater than the outer diameter of the hub shaft body 3, the left side of the blocking block 507 is provided with a through hole in communication with the inside of the sliding cylinder 506, and the left and right sides of the sliding cylinder 506 are both provided in an open manner, so that the sliding cylinder 506 and the blocking block 507 can normally move to the outside of the hub shaft body 3, the inner diameter of the circular groove 508 is greater than the inner diameter of the assembly bearing 501, and specifically, the inner diameter of the circular groove 508 is greater than the outer diameter of the inner ring of the assembly bearing 501, so that the blocking block 507 does not contact the inner ring of the assembly bearing 501 under the action of the circular groove 508.

[0042] In addition, the positioning groove 510 is provided for the corresponding positioning block 509 to be inserted therein, the left side of the blocking block 507 abuts against the right side of the assembly bearing 501 and the right side of the mounting ring 2, so that the blocking block 507 can be limited to the right side of the mounting ring 2 by the positioning block 509, and can limit the assembly bearing 501, and the right side of the second limiting ring 511 abuts against the left side of the assembly bearing 501, specifically, the inner diameter of the second limiting ring 511 is greater than the outer diameter of the inner ring of the assembly bearing 501, so that the second limiting ring 511 can limit the assembly bearing 501 while not increasing the friction force between the inner ring.

[0043] The working principle of the above embodiment is as follows:

[0044] When assembling the hub shaft body 3, the hub shaft body 3 with the fixed bearing 401 fixedly mounted thereon is arranged in the inside of the hub cylinder 1, the corresponding arc-shaped limiting block 502 is inserted into the inside of the corresponding limiting groove 503, the right side of the fixed bearing 401 abuts against the left side of the first limiting ring 402, the preliminary assembly of the fixed bearing 401 and the hub shaft body 3 is completed, the annular abutment plate 403 abuts against the left side of the fixed bearing 401, the insertion rod 404 is inserted into the inside of the corresponding insertion groove 405, finally, the screw is used to connect and fix the first communication hole 406 and the left side mounting ring 2, so that the fixed bearing 401 can be limited to the inside of the left side mounting ring 2 by the abutting limiting action between the first limiting ring 402 and the annular abutment plate 403, so that the fixed bearing 401 is not easy to deviate, the assembly bearing 501 is sleeved on the outside of the hub shaft body 3, the connecting block 504 is inserted into the inside of the corresponding connecting groove 505, and the left side of the assembly bearing 501 abuts against the right side of the second limiting ring 511, the blocking block 507 and the sliding cylinder 506 are sleeved on the outside of the hub shaft body 3, the left side of the blocking block 507 abuts against the right side of the assembly bearing 501, the positioning block 509 is inserted into the inside of the corresponding positioning groove 510, finally, the screw is used to connect and fix the second communication hole 512 and the right side mounting ring 2, so that the assembly bearing 501 can be limited between the opposite side of the second limiting ring 511 and the blocking block 507, so as to stably limit the fixed bearing 401 and the assembly bearing 501, without hindering the normal rotation transmission action of the hub shaft body 3, so as to avoid the additional friction between the structures as much as possible, and ensure the stability and efficiency of power transmission.

[0045] Compared with the prior art, the bicycle hub with bearing limiting structure can preliminarily limit the installation of the fixed bearing 401 and the assembly bearing 501 through the cooperation between the arc-shaped limiting block 502 and the limiting groove 503, so as to meet the stable installation requirement of the fixed bearing 401 and the assembly bearing 501, and the fixed bearing 401 can be limited in the space and is not prone to deviation through the use of the annular abutting plate 403, so that the stability of the fixed bearing 401 is ensured, the assembly bearing 501 can be limited in the space through the abutting cooperation between the second limiting ring 511 and the blocking block 507, and is also not prone to deviation, so that the stability of the assembly bearing 501 is ensured, and the inner ring of the assembly bearing 501 can be prevented from contacting under the action of the circular groove 508, so as to reduce the friction between structures, thereby protecting the power transmission, making the power transmission maintain high efficiency and stability, and solving the problem in the prior art that the bicycle hub with bearing limiting structure is prone to increased friction between structures during actual use, so that the power loss is increased, and the power transmission efficiency of the whole bicycle hub is greatly affected.

[0046] It should be noted that, in this document, the terms "first", "second", and so on are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or sequence between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or device including the element.

[0047] Although embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A bicycle hub with bearing stop structure, comprising a hub cylinder (1), characterized in that: Both left and right sides of the flower drum cylinder (1) are fixed with mounting rings (2), a flower drum shaft body (3) is arranged between the two mounting rings (2) and the inner side of the flower drum cylinder (1), the inner side of the left mounting ring (2) is provided with a fixed limiting assembly (400), and the inner side of the right mounting ring (2) is provided with an assembly limiting assembly (500); The fixed limiting assembly (400) comprises a fixed bearing (401) fixedly installed on the outer side of the flower drum shaft body (3), a first limiting ring (402) fixedly installed on the inner side of the flower drum cylinder (1), an annular abutting plate (403) abutting on the left side of the fixed bearing (401), a plurality of plug-in rods (404) fixedly installed on the right side of the annular abutting plate (403), a plurality of plug-in grooves (405) formed on the left side of the left mounting ring (2), and a plurality of first communication holes (406) formed on the left side of the annular abutting plate (403). The left side of the first limiting ring (402) abuts against the right side of the fixed bearing (401), the inner diameter of the annular abutting plate (403) is greater than the outer diameter of the inner ring of the fixed bearing (401), and the right side of the annular abutting plate (403) abuts against the left side of the left mounting ring (2). The assembly limiting assembly (500) comprises an assembly bearing (501) sleeved on the outer side of the flower drum shaft body (3), a plurality of arc-shaped limiting blocks (502) fixedly installed on the outer sides of the assembly bearing (501) and the fixed bearing (401) respectively, a plurality of limiting grooves (503) formed on the inner side of the mounting ring (2) and used for inserting and sliding the corresponding arc-shaped limiting blocks (502), a plurality of connecting blocks (504) fixedly installed on the outer side of the flower drum shaft body (3), a plurality of connecting grooves (505) formed on the inner side of the assembly bearing (501) and used for inserting and sliding the corresponding connecting blocks (504), a sliding cylinder (506) slidably connected to the outer side of the flower drum shaft body (3), a blocking block (507) fixedly installed on the left side of the sliding cylinder (506), a circular groove (508) formed on the left side of the blocking block (507), a plurality of positioning blocks (509) fixedly installed on the left side of the blocking block (507), a plurality of positioning grooves (510) formed on the right side of the right mounting ring (2), a second limiting ring (511) fixedly installed on the inner side of the flower drum cylinder (1), and a plurality of second communication holes (512) formed on the right side of the blocking block (507). The inner diameter of the circular groove (508) is greater than the outer diameter of the inner ring of the assembly bearing (501), the positioning grooves (510) are used for inserting the corresponding positioning blocks (509), the left side of the blocking block (507) abuts against the right side of the assembly bearing (501) and the right side of the right mounting ring (2), and the right side of the second limiting ring (511) abuts against the left side of the assembly bearing (501).

2. The hub as claimed in claim 1, wherein: The plug-in rod (404) is triangular, and the plug-in rod (404) can be inserted into the inner side of the corresponding plug-in groove (405).

3. The hub as defined in claim 1, wherein: The first communication hole (406) and the second communication hole (512) are equal in number, and the inner side of the first communication hole (406) and the second communication hole (512) is provided with a screw, and the side opposite to the two mounting rings (2) is provided with a plurality of inner thread grooves, which can be threadedly connected with the corresponding screws on the same side.

4. The hub as defined in claim 1, wherein: The inner side of the assembled bearing (501) is attached to the outer side of the hub shaft body (3), the limiting groove (503) extends to the inner side of the hub barrel (1), and the sides of the limiting groove (503) opposite to each other are both provided as openings.

5. The hub as defined in claim 1, wherein: The left side of the connecting groove (505) is provided as an opening, and the inner diameter of the sliding cylinder (506) is greater than the outer diameter of the hub shaft body (3).

6. The hub as defined in claim 1, wherein: The left side of the blocking block (507) is provided with a through hole communicating with the inside of the sliding cylinder (506), and the left and right sides of the sliding cylinder (506) are both provided as openings.

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