CN220594533U - High-drive-ratio aluminum hub structure of bicycle - Google Patents
High-drive-ratio aluminum hub structure of bicycle Download PDFInfo
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- CN220594533U CN220594533U CN202322344316.XU CN202322344316U CN220594533U CN 220594533 U CN220594533 U CN 220594533U CN 202322344316 U CN202322344316 U CN 202322344316U CN 220594533 U CN220594533 U CN 220594533U
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- Prior art keywords
- bearing
- drum structure
- main shaft
- hub
- sleeve
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 30
- 239000000428 dust Substances 0.000 claims abstract description 20
- 239000011248 coating agent Substances 0.000 claims abstract description 19
- 238000000576 coating method Methods 0.000 claims abstract description 19
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 15
- 239000010410 layer Substances 0.000 claims abstract description 13
- 230000001681 protective effect Effects 0.000 claims abstract description 11
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 10
- 239000011241 protective layer Substances 0.000 claims abstract description 9
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000009825 accumulation Methods 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- 239000002966 varnish Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 239000003570 air Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000010977 jade Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- Laminated Bodies (AREA)
Abstract
The utility model relates to the technical field of flower-drum structures, in particular to a high-drive-ratio bicycle aluminum flower-drum structure, which comprises a container body, wherein the container body comprises a flower-drum structure and is a main body of the high-drive-ratio bicycle aluminum flower-drum structure; the hub structure comprises a main shaft, an outer shaft sleeve and a fixing nut; the protective sleeves are sleeved on two sides of the outer surface of the main shaft; a dust cap disposed on an outer surface of the fixing nut; a hydrophobic coating applied to an outer surface of the dust cap; the outer sleeve includes a protective layer and a reinforcing layer. The utility model overcomes the defects of the prior art, reduces dust accumulation on the hub through the hydrophobic coating and the protective sleeve, then the protective sleeve isolates the bearing from the outside, further improves the service performance of the bearing, avoids the abrasion of the bearing, increases the rigidity of the outer shaft sleeve through the reinforcing layer and the protective layer, improves the stability of the outer shaft sleeve, simultaneously prevents the corrosion and oxidation reaction of foreign matters to the outer shaft sleeve, and improves the service durability of the outer shaft sleeve.
Description
Technical Field
The utility model relates to the technical field of hub structures, in particular to an aluminum hub structure of a bicycle with high driving ratio.
Background
The high driving ratio bicycle aluminum hub structure refers to a transmission system design of a bicycle, wherein the aluminum hub plays an important role, and generally has more teeth numbers, i.e. more gears, compared with a single or less teeth number gear set of a traditional bicycle, so as to realize a higher driving ratio, namely, the ratio of the distance rotated by a rear wheel to the distance generated by one rotation of a pedal when one rider steps on the pedal in unit time, and the high driving ratio can enable the rider to obtain a larger speed or a stronger climbing capacity under the same power input.
According to CN 219236660U's an locking bicycle aluminium flower-drum structure, including the flower-drum shell, the inside bearing type axle center body that is equipped with of flower-drum shell, bearing type axle center body both ends all are connected with plain end jade and give as security, and this application simple structure, the fault rate is low, has further guaranteed the stability when the flower-drum is used through setting up locking flange nut, locking pad and the cooperation of increaseing the gasket, makes it difficult not hard up to effectively prolong the life of flower-drum. It has been found by combining the above references that the existing bicycle aluminum hub structure has at least the following problems:
1. the flower-drum is in spite of the dustproof structure, and a certain degree of pollution risk still exists, and particularly in severe environments, dust and sundries can bypass the dustproof structure and enter the flower-drum, so that abrasion and faults of an internal bearing are caused.
2. The aluminum alloy outer hub has a relatively low stiffness, and under high load or severe riding conditions, the outer hub is susceptible to bending or deformation, affecting the stability and handling of the bicycle, while the outer hub is susceptible to oxidation and corrosion, especially under humid or corrosive environmental conditions, which can cause spotting, rust or corrosion on the outer hub surface and reduce its appearance and durability.
Disclosure of Invention
The utility model aims to provide a high-driving-ratio bicycle aluminum hub structure so as to solve the problem of the bicycle aluminum hub structure in the use process in the background technology.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a high drive ratio bicycle aluminum hub structure comprising:
the flower-drum structure is a main body of an aluminum flower-drum structure of a bicycle with high driving ratio;
the hub structure comprises a main shaft, an outer shaft sleeve and a fixing nut;
the protective sleeves are sleeved on two sides of the outer surface of the main shaft;
a dust cap provided on an outer surface of the fixing nut;
a hydrophobic coating applied to an outer surface of the dust cap;
the outer sleeve includes a protective layer and a reinforcing layer.
Preferably, the hub structure further comprises:
and the bearing is sleeved on the outer surface of the main shaft, is positioned between the two groups of protective sleeves, and is fixed on the outer surface of the bearing.
Preferably, the hub structure further comprises:
blades fixed on both sides of the outer surface of the outer hub;
the through grooves penetrate through two sides of the blade;
the threaded openings are formed in two sides of the main shaft, and the fixing nuts are connected with the main shaft through the threaded openings.
Preferably, the hub structure further comprises:
the contact surface of the main shaft and the bearing is smooth, and the contact friction coefficient between the main shaft and the bearing is reduced.
Preferably, the hub structure further comprises:
the through grooves are provided with a plurality of groups, and the through grooves, namely the blades, are designed in an annular array with the circle center as the circle center.
Preferably, the hub structure further comprises:
the outer sleeve is formed by processing aluminum alloy, and the outer sleeve is formed by combining a protective layer, a reinforcing layer and aluminum alloy.
Preferably, the hub structure further comprises:
the blades are provided with two groups, and the two groups of blades are arranged in a mirror image mode by taking the longitudinal axis of the outer shaft sleeve as the center.
The embodiment of the utility model provides a high-driving-ratio bicycle aluminum hub structure, which has the following beneficial effects that;
1. through setting up hydrophobic coating and lag, when outside dust and the hydrophobic coating contact on shield surface, hydrophobic coating is the globular coating that rolls on the surface of drop of water, and it can make water and dirt be difficult to adhere on the surface, when rainwater or rivers wash away, can wash away dirt easily, increases the cleanness of shield, can also reduce the dust and pile up on the flower-drum, later the lag is with bearing and outside isolation, further improves the performance of bearing, has avoided the wearing and tearing of bearing.
2. Through setting up enhancement layer and inoxidizing coating, aluminum flower-drum is under high load or violent riding condition, through inside being provided with the enhancement layer, its enhancement layer is the strengthening rib, increase aluminum flower-drum's rigidity, higher rigidity makes can resist deformation or crooked more effectively when transmitting power, reduce energy loss, improve transmission efficiency, and simultaneously, the inoxidizing coating is the varnish, the outer axle sleeve receives the infringement of oxidation and corruption easily, especially under exposing to environmental conditions such as air, water and chemical, transparent varnish can form a physical barrier, prevent effectively that external material from corroding and oxidation reaction to outer axle sleeve, the durability of use of outer axle sleeve is improved.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of a split structure of the hub structure of the utility model;
FIG. 3 is a schematic illustration of the front cross-sectional structure of the spindle of the present utility model;
fig. 4 is a schematic view of the structure of the outer hub of the present utility model.
In the figure: 1. a hub structure; 2. a main shaft; 3. an outer sleeve; 4. a blade; 5. a through groove; 6. a protective sleeve; 7. a threaded port; 8. a fixing nut; 9. a dust cover; 10. a reinforcing layer; 11. a protective layer; 12. a hydrophobic coating; 13. and (3) a bearing.
Detailed Description
The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.
Examples: as shown in fig. 1, a high driving ratio bicycle aluminum hub structure includes: the hub structure 1 is a high-drive-ratio bicycle aluminum hub structure main body, the hub is one of key components of a bicycle transmission system and bears transmission force from pedals and chains, the aluminum hub structure main body has enough strength and rigidity, power generated by a human body can be effectively transmitted to wheels, the outer hub 3 is fixed on the outer surface of the bearing 13, the outer hub 3 can play a role of protecting the bearing 13 and prevent dust, dirt, moisture or other impurities from entering the bearing 13, meanwhile, the hub can also prevent the bearing 13 from directly contacting the outside, friction and abrasion are reduced, the service life of the bearing is prolonged, the blades 4 are fixed on two sides of the outer surface of the outer hub 3, through grooves 5 penetrate through the two sides of the hub, the through grooves 5 are connected with spokes on the outer wheels, the through grooves 5 provide an interface, so that can link to each other the spoke on outer axle sleeve 3 and the outside wheel, this kind of connected mode can increase the intensity of connection, ensure the firm connection between blade 4 and outer axle sleeve 3 and the wheel, through the connection of logical groove 5 and spoke, blade 4 and outer axle sleeve 3 and wheel have formed a stable overall structure, this helps reducing rocking or not hard up phenomenon in the motion process, ensure that the connection between flower-drum and the wheel keeps stable, fixation nut 8 is connected with main shaft 2 through screw thread mouth 7, and protect main shaft 2 and bearing 13 through the shield 9 that drives fixation nut 8 surface, shield 9 is located fixation nut 8's surface, play the effect of protection main shaft 2 and bearing 13, shield 9 can block dust, dirt and other impurity entering bearing 13 and main shaft 2 inside, thereby reduce friction and wearing and tearing, extension main shaft 2 and bearing 13's life.
As shown in fig. 2, includes: the hub structure 1 comprises a main shaft 2, a bearing 13 is sleeved on the outer surface of the main shaft 2, the contact surface of the main shaft 2 and the bearing 13 is smooth, the friction between the bearing 13 and the main shaft 2 can be reduced by the smooth contact surface, the consumption of energy is reduced, the wheel needs less driving force in the rotating process, the riding driving efficiency is improved, a protective sleeve 6 is arranged on two sides of the main shaft 2, the bearing 13 can be covered by the protective sleeve 6, the lubricating oil in the bearing 13 is prevented from overflowing, external dust and moisture can be prevented from entering the bearing 13, the outer surface of the protective sleeve 6 is smooth, the bearing 13 is covered, and thus, the pollution and damage to the bearing 13 can be reduced, and the reliability and the service life of the bearing can be improved.
As shown in fig. 3, includes: the screw thread mouth 7 is offered in the both sides of main shaft 2, can drive whole aluminium flower-drum structure with main shaft 2 through fixation nut 8 and dismantle from the frame, hydrophobic coating 12 scribbles in the both sides of shield 9, hydrophobic coating 12 can prevent effectively that moisture from permeating to the shield inside, when outside runs into moisture, rainwater or other liquid, hydrophobic coating 12 can make the water droplet roll off from the surface rapidly, can not permeate shield 9, thereby the inside machinery of protection is prevented from moist environment's influence, hydrophobic coating's surface is smooth, be difficult to adhere to dust, particulate matter or other impurity, reduce the dust and pile up the surface at shield 9, simultaneously because hydrophobic coating 12's characteristic, can wash sewage fast.
As shown in fig. 4, includes: the outer sleeve 3 comprises a reinforcing layer 10 and a protective layer 11, wherein the reinforcing layer 10 is a reinforcing rib, the rigidity of the outer sleeve can be increased, deformation or bending can be effectively resisted, energy loss is reduced, transmission efficiency is improved, meanwhile, the rigidity can better bear force input and rotation, instability caused by deformation is reduced, the protective layer 11 is varnish, the outer sleeve 3 is made of aluminum material and is easy to be damaged by oxidization and corrosion, particularly under the environmental conditions of exposure to air, water, chemical substances and the like, the transparent varnish can form a physical barrier, the surface of the outer sleeve 3 can be protected from oxidization and corrosion, durability is improved, appearance is beautified, cleaning and maintenance are convenient, and long-term protection and good appearance effect are provided for the outer sleeve 3.
Working principle: the personnel are connected with the spoke and the through groove 5 of wheel and wheel, afterwards be connected wheel, aluminium flower-drum structure and frame through fixation nut 8, when riding, the inner circle of bearing 13 rotates on main shaft 2, outside dust is separated by shield 9 and hydrophobic coating 12, reduce dust impurity, moisture gets into inside bearing 13, it hydrophobic coating 12 can avoid sewage dust to pile up on shield 9 simultaneously it can make water and dirt be difficult to adhere on the surface, when rainwater or rivers wash out, can wash away the dirt easily, cooperation lag 6 uses, lag 6 further separates dust and moisture and gets into bearing 13, it can also avoid lubricating oil to spill over from bearing 13 inside, rigidity and stability through the enhancement layer 10 and the inoxidizing coating 11 of outer sleeve 3, the outer sleeve 3 surface is protected simultaneously and is prevented oxidation and corrode infringement, increase durability, beautify the outward appearance, convenient cleaning and maintenance.
Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.
Claims (7)
1. A high drive ratio bicycle aluminum hub structure, comprising:
the hub structure (1) is a main body of an aluminum hub structure of a bicycle with high driving ratio;
the hub structure (1) comprises a main shaft (2), an outer sleeve (3) and a fixing nut (8);
the protective sleeves (6) are sleeved on two sides of the outer surface of the main shaft (2);
a dust cover (9) provided on the outer surface of the fixing nut (8);
a hydrophobic coating (12) applied to the outer surface of the dust cap (9);
the outer sleeve (3) comprises a protective layer (11) and a reinforcing layer (10).
2. The high drive ratio bicycle aluminum drum structure of claim 1, wherein the drum structure (1) further comprises:
the bearing (13) is sleeved on the outer surface of the main shaft (2), is positioned between the two groups of protective sleeves (6), and meanwhile, the outer shaft sleeve (3) is fixed on the outer surface of the bearing (13).
3. The high drive ratio bicycle aluminum drum structure of claim 1, wherein the drum structure (1) further comprises:
blades (4) fixed on both sides of the outer surface of the outer hub (3);
a through groove (5) penetrating through both sides of the blade (4);
the threaded openings (7) are formed in two sides of the main shaft (2), and the fixing nuts (8) are connected with the main shaft (2) through the threaded openings (7).
4. The high drive ratio bicycle aluminum drum structure of claim 2, wherein the drum structure (1) further comprises:
the contact surface of the main shaft (2) and the bearing (13) is smooth, and the contact friction coefficient with the bearing (13) is reduced.
5. A high drive ratio bicycle aluminium drum structure according to claim 3, characterized in that the drum structure (1) further comprises:
the through grooves (5) are provided with a plurality of groups, and the through grooves (5) and the blades (4) are designed in an annular array with the center of the circle.
6. The high drive ratio bicycle aluminum drum structure of claim 1, wherein the drum structure (1) further comprises:
the outer sleeve (3) is formed by processing aluminum alloy, and the outer sleeve (3) is formed by combining a protective layer (11), a reinforcing layer (10) and aluminum alloy.
7. A high drive ratio bicycle aluminium drum structure according to claim 3, characterized in that the drum structure (1) further comprises:
the blades (4) are provided with two groups, and the two groups of blades (4) are arranged in a mirror image mode by taking the longitudinal axis of the outer sleeve (3) as the center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322344316.XU CN220594533U (en) | 2023-08-30 | 2023-08-30 | High-drive-ratio aluminum hub structure of bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322344316.XU CN220594533U (en) | 2023-08-30 | 2023-08-30 | High-drive-ratio aluminum hub structure of bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220594533U true CN220594533U (en) | 2024-03-15 |
Family
ID=90176894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322344316.XU Active CN220594533U (en) | 2023-08-30 | 2023-08-30 | High-drive-ratio aluminum hub structure of bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220594533U (en) |
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2023
- 2023-08-30 CN CN202322344316.XU patent/CN220594533U/en active Active
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