KR20100074401A - Wheel nut having decreased friction coefficient distribution - Google Patents
Wheel nut having decreased friction coefficient distribution Download PDFInfo
- Publication number
- KR20100074401A KR20100074401A KR1020080132813A KR20080132813A KR20100074401A KR 20100074401 A KR20100074401 A KR 20100074401A KR 1020080132813 A KR1020080132813 A KR 1020080132813A KR 20080132813 A KR20080132813 A KR 20080132813A KR 20100074401 A KR20100074401 A KR 20100074401A
- Authority
- KR
- South Korea
- Prior art keywords
- wheel
- wheel nut
- aluminum
- hub
- friction coefficient
- Prior art date
Links
- 230000003247 decreasing effect Effects 0.000 title description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 31
- 239000006185 dispersion Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000004381 surface treatment Methods 0.000 claims abstract description 8
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 4
- 239000000956 alloy Substances 0.000 claims abstract description 4
- 239000007779 soft material Substances 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 2
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 238000007747 plating Methods 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B23/00—Attaching rim to wheel body
- B60B23/06—Attaching rim to wheel body by screws, bolts, pins, or clips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B33/00—Features common to bolt and nut
- F16B33/06—Surface treatment of parts furnished with screw-thread, e.g. for preventing seizure or fretting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Braking Arrangements (AREA)
Abstract
The present invention relates to a wheel nut surface treatment for maintaining a constant axial force of a hub bolt in a hub, a hub bolt, a brake disc, an aluminum wheel, and a wheel nut assembly used in an automobile, and reducing axial force distribution between hub bolts. The introduction of the surface treatment method provides a wheel nut which reduces the friction coefficient dispersion between the wheel nut and the aluminum wheel.
A wheel nut having a low friction coefficient dispersion according to the present invention is a hub bolt and wheel nut for fastening an aluminum wheel, a brake disc, and a hub of an automobile, wherein the wheel nut is softer than the coating and alloy layer of an aluminum wheel on the surface of the wheel nut. The material is surface treated.
According to the present invention as described above, by using the wheel nut 5, the friction coefficient is stabilized, the wheel nut 5 wears the coating and aluminum alloy layer of the aluminum wheel 4, or the aluminum wheel is sintered locally, The roughness of the surface condition can be prevented, and the friction coefficient dispersion between the wheel nuts 5 on the wheels of the vehicle or the axial force between the hub bolts can be significantly reduced. In addition, it is possible to prevent the vehicle from vibrating due to the difference in the axial force between the hub bolts, and to promote the stable braking device can contribute to the improvement of the performance of the car and to ensure safety.
Description
The present invention relates to a wheel nut surface treatment for maintaining a constant axial force of a hub bolt in a hub, a hub bolt, a brake disc, an aluminum wheel, and a wheel nut assembly used in an automobile, and reducing axial force distribution between hub bolts. The introduction of the surface treatment method provides a wheel nut which reduces the friction coefficient dispersion between the wheel nut and the aluminum wheel.
The present invention reduces the friction coefficient distribution occurring at the contact portion between the wheel nut and the aluminum wheel when the wheel nut is fastened in the hub, the hub bolt, the brake disc, the aluminum wheel, and the wheel nut assembly, thereby reducing the axial force distribution between the hub bolts at the prescribed tightening torque. It is a technology that ensures stable braking performance by making it constant. This includes the reduction of vibrations that occur when braking the vehicle.
Conventionally, as shown in FIG. 1, the aluminum wheel 4 has been coated on the surface for surface protection, visual effects, etc., and the wheel nut has been used by chrome plating. In this case, if the brake disc (3) is inserted between the hub (1) and the aluminum wheel, and the hub bolt (2) and the wheel nut (5) are fastened, the chrome plated wheel nut (5) will have a low surface hardness. Abrasion of the coating and the aluminum alloy layer causes the aluminum wheel to be sintered locally, or the surface is roughened, and even within the same wheel, friction coefficients are distributed between the wheel nuts 5, and the axial force between the hub bolts is changed.
This phenomenon is excessively generated, and if the degree becomes severe, serious problems in safety may occur, such as uneven wear of the brake disc 5 when the vehicle is braked, and vibration in the vehicle body. In addition, if the bolt is frequently repeated for reasons such as automobile maintenance, this phenomenon becomes excessive, and even if the
The present invention is to solve the problems of the prior art as described above, instead of the conventional hard chromium plating on the surface of the wheel nut 5, by applying a surface treatment using a material with a low hardness, when the wheel nut 5 is fastened It is an object to reduce the wear of the aluminum wheel (4) to ensure a stable axial force.
In order to achieve the above object, the wheel nut with less friction coefficient dispersion of the present invention,
Hub bolts and wheel nuts for fastening aluminum wheels, brake discs, and hubs of automobiles, characterized in that the surface of the wheel nut is surface-treated with a soft material having a hardness lower than that of an aluminum wheel and an alloy layer.
The surface treatment may be performed by a cold spray method or a thermal spraying method, and the soft material may be aluminum or copper.
According to the present invention as described above, by using the wheel nut 5 stabilized friction coefficient
The wheel nut 5 can prevent the painting of the aluminum wheel 4 and the aluminum alloy layer, or prevent the aluminum wheel from sintering locally and roughness of the surface, and friction between the wheel nuts 5 in the vehicle wheels. It is possible to significantly reduce coefficient dispersion or change in axial force between hub bolts.
In addition, it is possible to prevent the vehicle from vibrating due to the difference in the axial force between the hub bolts, and to promote the stable braking device, which can contribute to the improvement of the performance and the safety of the vehicle.
Hereinafter, the configuration and operation of the present invention will be described in more detail with reference to the accompanying drawings. 1 is a cross-sectional conceptual view of a typical wheel nut assembly. 2 is a front view of a wheel nut on which the soft material of the present invention is surface treated.
As shown in FIG. 1, a
In the present invention, instead of the conventional chromium plating on the surface of the wheel nut (5)
Surface treatment of the soft material having a hardness lower than the coating or alloy layer of the aluminum wheel 4 to produce a wheel nut (6) plated with a soft material as shown in FIG. Such soft materials include aluminum, copper, and the like. This soft material is surface-treated on the wheel nut 5 using a technique such as a cold spray method or a spraying method.
The
When the
1 is a cross-sectional conceptual view of a typical wheel nut assembly.
2 is a front view of a wheel nut surface-treated with the soft material of the present invention.
♠ Explanation of symbols on the main parts of the drawings.
1: hub, 2: hub bolt
3: brake disc, 4: aluminum wheel
5:
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020080132813A KR20100074401A (en) | 2008-12-24 | 2008-12-24 | Wheel nut having decreased friction coefficient distribution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020080132813A KR20100074401A (en) | 2008-12-24 | 2008-12-24 | Wheel nut having decreased friction coefficient distribution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20100074401A true KR20100074401A (en) | 2010-07-02 |
Family
ID=42636921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020080132813A KR20100074401A (en) | 2008-12-24 | 2008-12-24 | Wheel nut having decreased friction coefficient distribution |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20100074401A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757694A (en) * | 2018-07-24 | 2018-11-06 | 浙江裕泰汽车配件有限公司 | A kind of plastic nut and its production equipment |
-
2008
- 2008-12-24 KR KR1020080132813A patent/KR20100074401A/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757694A (en) * | 2018-07-24 | 2018-11-06 | 浙江裕泰汽车配件有限公司 | A kind of plastic nut and its production equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WITN | Withdrawal due to no request for examination |