CN112664565A - Hub bearing unit for laser material increase and processing method - Google Patents
Hub bearing unit for laser material increase and processing method Download PDFInfo
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- CN112664565A CN112664565A CN202011551671.9A CN202011551671A CN112664565A CN 112664565 A CN112664565 A CN 112664565A CN 202011551671 A CN202011551671 A CN 202011551671A CN 112664565 A CN112664565 A CN 112664565A
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Abstract
The invention discloses a laser additive hub bearing unit and a processing method, which mainly comprise a bearing inner ring and the like, wherein the bearing inner ring is arranged at one end of a flange plate, the root part of a shaft neck of the flange plate is provided with an outer raceway, the outer raceway and the inner raceway of the bearing inner ring form double rows of raceways of the hub bearing unit, bearing rolling bodies are arranged between the double rows of raceways, the bearing rolling bodies are kept fixed by a retainer, a bearing outer ring is arranged at the outer side of each bearing rolling body, and a sealing structure is arranged between each bearing outer ring and the corresponding bearing inner. According to the invention, by utilizing a laser additive manufacturing technology, the surface of a matrix with strength requirements in the hub bearing taking cast iron as the matrix material is subjected to laser cladding, and reinforcing materials such as iron powder are cladded to corresponding positions, so that the use strength requirements of the hub bearing unit are ensured, and meanwhile, the effect of saving cost is achieved; and the additional characteristics of corrosion resistance, wear resistance, heat resistance and the like are obtained by regulating and controlling through different cladding materials.
Description
Technical Field
The invention relates to the field of hub bearings, in particular to a laser additive hub bearing unit and a processing method.
Background
A hub bearing is an automotive component that carries weight and provides precise guidance for the rotation of the hub. The existing hub bearings mainly and integrally adopt cast iron materials, but at some structures with high abrasion strength, the performance of cast iron cannot meet the actual working requirements, so that parts are out of service too quickly, and the maintenance cost is increased.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides an additive hub bearing unit and a processing method.
The purpose of the invention is achieved by the following technical scheme: the laser material-added hub bearing unit mainly comprises a bearing inner ring, a bearing rolling body, a bearing outer ring, a flange plate, a retainer and a sealing structure, wherein the bearing inner ring is arranged at one end of the flange plate, an outer raceway is arranged at the root part of a shaft neck of the flange plate, the outer raceway and the inner raceway of the bearing inner ring form a double-row raceway of the hub bearing unit, the bearing rolling body is arranged between the double-row raceways, the bearing rolling body is kept fixed by the retainer, the bearing outer ring is arranged on the outer side of the bearing rolling body, and the sealing structure is arranged between.
The sealing form of the sealing structure comprises a sealing cover and an elastic sealing ring.
The bearing rolling body form comprises a ball, a cylindrical roller, a tapered roller and a roller pin.
And the base bodies of the flange plate and the bearing outer ring are made of cast iron, and the surfaces of the base bodies, which are in contact with the bearing rolling body side, the press-in side of the mounting sealing structure and the press-in side of the mounting bearing inner ring, of the flange plate and the bearing outer ring are subjected to laser material increase treatment.
The laser additive processing adopts a reinforcing material.
The processing method of the laser additive hub bearing unit mainly comprises the following steps:
1) firstly, carrying out sand blasting treatment on the surface of a corresponding matrix to remove a surface metal oxide layer and increase the surface roughness;
2) and performing laser cladding on the surface of the pretreated substrate, and cladding reinforcing materials such as iron powder and the like to corresponding positions to obtain a cladding layer with the thickness of 0.5-5 mm.
The invention has the beneficial effects that: according to the invention, by utilizing a laser additive manufacturing technology, the surface of a matrix with strength requirements in the hub bearing taking cast iron as the matrix material is subjected to laser cladding, and reinforcing materials such as iron powder are cladded to corresponding positions, so that the use strength requirements of the hub bearing unit are ensured, and meanwhile, the effect of saving cost is achieved; and the additional characteristics of corrosion resistance, wear resistance, heat resistance and the like are obtained by regulating and controlling through different cladding materials.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Description of reference numerals: the bearing comprises a bearing inner ring 1, a bearing rolling body 2, a bearing outer ring 3, a flange plate 4, a retainer 5, a sealing structure 6 and a reinforcing material 7.
Detailed Description
The invention will be described in detail below with reference to the following drawings:
as shown in the attached drawings, the laser-material-added hub bearing unit mainly comprises a bearing inner ring 1, a bearing rolling body 2, a bearing outer ring 3, a flange plate 4, a retainer 5 and a sealing structure 6, wherein the bearing inner ring 1 is installed at one end of the flange plate 4, an outer raceway is arranged at the root part of a shaft neck of the flange plate 4, the outer raceway and the inner raceway of the bearing inner ring 1 form double-row raceways of the hub bearing unit, the bearing rolling body 2 is installed between the double-row raceways, the bearing rolling body 2 is kept and fixed by the retainer 5, and the bearing rolling body 2 comprises balls, cylindrical rollers, tapered rollers and rolling. And a bearing outer ring 3 is arranged on the outer side of the bearing rolling body 2, and a sealing structure 6 is arranged between the bearing outer ring 3 and the bearing inner ring 1 as well as between the bearing outer ring 3 and the flange plate 4. The sealing form of the sealing structure 6 comprises a sealing cover and an elastic sealing ring. And the base bodies of the flange plate 4 and the bearing outer ring 3 are made of cast iron, and the laser material increase treatment is carried out on the base body surfaces of the flange plate 4 and the bearing outer ring 3, which are in contact with the bearing rolling body 2 side, the press-in side of the installation sealing structure 6 and the press-in side of the installation bearing inner ring 1. The laser additive process employs a reinforcing material 7.
The processing method of the laser additive hub bearing unit mainly comprises the following steps:
1) firstly, carrying out sand blasting treatment on the surface of a corresponding matrix to remove a surface metal oxide layer and increase the surface roughness;
2) and then carrying out laser cladding on the surface of the pretreated substrate, cladding reinforcing materials 7 such as iron powder and the like to corresponding positions to obtain a cladding layer with the thickness of 0.5-5 mm, wherein the hardness and the strength can be obviously improved, and meanwhile, the characteristics of corrosion resistance, abrasion resistance, heat resistance and the like can be obtained through the difference of cladding materials.
It should be understood that equivalent substitutions and changes to the technical solution and the inventive concept of the present invention should be made by those skilled in the art to the protection scope of the appended claims.
Claims (6)
1. The utility model provides a wheel hub bearing unit of laser vibration material disk which characterized in that: the hub bearing mainly comprises a bearing inner ring (1), bearing rolling bodies (2), a bearing outer ring (3), a flange plate (4), a retainer (5) and a sealing structure (6), wherein the bearing inner ring (1) is installed at one end of the flange plate (4), an outer side raceway is arranged at the root part of a shaft neck of the flange plate (4), the outer side raceway and the inner side raceway of the bearing inner ring (1) form a double-row raceway of a hub bearing unit, the bearing rolling bodies (2) are installed between the double-row raceway, the bearing rolling bodies (2) are kept fixed by the retainer (5), the bearing outer ring (3) is installed at the outer side of the bearing rolling bodies (2), and the sealing structure (6) is arranged between the.
2. The laser-additive hub-bearing unit of claim 1, wherein: the sealing form of the sealing structure (6) comprises a sealing cover and an elastic sealing ring.
3. The laser-additive hub-bearing unit of claim 1, wherein: the bearing rolling bodies (2) comprise balls, cylindrical rollers, tapered rollers and rolling needles.
4. The laser-additive hub-bearing unit of claim 1, wherein: and the base bodies of the flange plate (4) and the bearing outer ring (3) are made of cast iron, and the laser additive processing is performed on the base body surfaces of the flange plate (4) and the bearing outer ring (3) which are in contact with the bearing rolling body (2) side, the press-in side of the installation sealing structure (6) and the press-in side of the installation bearing inner ring (1).
5. Laser-additivated hub-bearing unit of claim 4, wherein: the laser additive processing adopts a reinforcing material (7).
6. A processing method of a hub bearing unit for laser material increase is characterized by comprising the following steps: the method mainly comprises the following steps:
1) firstly, carrying out sand blasting treatment on the surface of a corresponding matrix to remove a surface metal oxide layer and increase the surface roughness;
2) and performing laser cladding on the surface of the pretreated substrate, and cladding reinforcing materials such as iron powder and the like to corresponding positions to obtain a cladding layer with the thickness of 0.5-5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011551671.9A CN112664565A (en) | 2020-12-24 | 2020-12-24 | Hub bearing unit for laser material increase and processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011551671.9A CN112664565A (en) | 2020-12-24 | 2020-12-24 | Hub bearing unit for laser material increase and processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112664565A true CN112664565A (en) | 2021-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011551671.9A Pending CN112664565A (en) | 2020-12-24 | 2020-12-24 | Hub bearing unit for laser material increase and processing method |
Country Status (1)
| Country | Link |
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| CN (1) | CN112664565A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200982345Y (en) * | 2006-07-31 | 2007-11-28 | 韶关东南轴承有限公司 | Double row conical roller hub bearing with outer rim flange |
| WO2012099081A1 (en) * | 2011-01-18 | 2012-07-26 | 株式会社ジェイテクト | Rolling bearing device for vehicle wheel |
| CN107524413A (en) * | 2017-10-18 | 2017-12-29 | 李�杰 | A kind of raceway laser remanufacturing method of rock bit |
| CN109268395A (en) * | 2018-10-12 | 2019-01-25 | 翟长生 | A kind of angular contact ball bearing ring composite reinforcement process |
| CN210003672U (en) * | 2019-05-09 | 2020-01-31 | 杭州亚恒汽车零部件有限公司 | automobile hub bearing |
| CN111120519A (en) * | 2019-12-13 | 2020-05-08 | 浙江万向精工有限公司 | Hub bearing unit |
-
2020
- 2020-12-24 CN CN202011551671.9A patent/CN112664565A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200982345Y (en) * | 2006-07-31 | 2007-11-28 | 韶关东南轴承有限公司 | Double row conical roller hub bearing with outer rim flange |
| WO2012099081A1 (en) * | 2011-01-18 | 2012-07-26 | 株式会社ジェイテクト | Rolling bearing device for vehicle wheel |
| CN107524413A (en) * | 2017-10-18 | 2017-12-29 | 李�杰 | A kind of raceway laser remanufacturing method of rock bit |
| CN109268395A (en) * | 2018-10-12 | 2019-01-25 | 翟长生 | A kind of angular contact ball bearing ring composite reinforcement process |
| CN210003672U (en) * | 2019-05-09 | 2020-01-31 | 杭州亚恒汽车零部件有限公司 | automobile hub bearing |
| CN111120519A (en) * | 2019-12-13 | 2020-05-08 | 浙江万向精工有限公司 | Hub bearing unit |
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