CN205686087U - Hub unit bearing - Google Patents
Hub unit bearing Download PDFInfo
- Publication number
- CN205686087U CN205686087U CN201620567001.9U CN201620567001U CN205686087U CN 205686087 U CN205686087 U CN 205686087U CN 201620567001 U CN201620567001 U CN 201620567001U CN 205686087 U CN205686087 U CN 205686087U
- Authority
- CN
- China
- Prior art keywords
- bolt
- spline
- circle
- hub
- chimeric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
This utility model relates to rotatably support the hub unit bearing of automotive wheel relative to draft hitch.Hub unit bearing is chimeric with hub stud holes spline by boss bolt, thus wheel-side members (wheel) is installed on wheel hub ring.Hub stud holes is by compared with the external diameter with the spline part of boss bolt being somewhat the guide portion in big footpath, and can be kept as the crow flies along the axis direction of hub stud holes by spline boss bolt before chimeric.By this composition, it is possible to boss bolt is fitted together to relative to the axis direction spline as the crow flies of hub stud holes.
Description
Technical field
This utility model relates to the hub unit bearing rotatably supporting automotive wheel.
Background technology
Hub unit bearing has the outer ring as static circle, as rotating the wheel hub ring of circle and being assembled to outer ring and wheel
Multiple rolling elements between hub circle.As it is shown in figure 5, the hub flange 100 being located on wheel hub ring circumferentially has multiple wheel hub spiral shell
Keyhole 102.Being fitted together at hub stud holes 102 internal spline and have boss bolt 300, this boss bolt 30 is used for will be as wheel side structure
Wheel or the brake disc 200 of part link fixing by nut and mounting plane 101.
When being pressed into boss bolt 300 in hub stud holes 102, if boss bolt 300 tilts (boss bolt 300
Axle center tilts relative to the axle center of hub stud holes 102), then worry between axle center and the mounting plane 101 of boss bolt 300
Perpendicularity can deteriorate, and the installation to brake disc 200 brings obstacle.It addition, can be at the head 301 of boss bolt 300 and wheel hub
Produce gap between the anti-mounting plane of flange 100 (in the axial direction and mounting plane 100 is the face of opposition side) 103, and make wheel
The intensity of hub bolt 300 reduces.And, when assembling or the conveyance of hub unit bearing, worry boss bolt 300 and auxiliary work
Tool can disturb.
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2005-054999 Japanese Laid Open Patent
Utility model content
In order to solve the problems referred to above, problem of the present utility model is, it is provided that a kind of when being pressed into wheel hub to hub stud holes
During bolt, it is possible to the axis direction along hub stud holes keeps the hub unit bearing of the posture of boss bolt.
In order to solve above-mentioned problem, this utility model provides a kind of hub unit bearing, and it has can be with the relative rotation
Multiple rolling elements that the static circle of configuration and rotation are enclosed and be assembled between described static circle and described rotation circle, described
Rotate on circle, towards radial outside projecting have possess the flange of bolt hole, will have the bolt of spline part and described bolt
Hole spline is fitted together to, and wheel-side members is thus mounted on described rotation and encloses, and described hub unit bearing is characterised by,
Described bolt hole have from described bolt insert side be increasingly becoming continuously path the first chamfered section and with institute
State the fitting portion that the spline part spline of bolt is chimeric, between described first chamfered section and described fitting portion, be provided with guide portion, institute
Stating guide portion compared with the external diameter of the spline part of described bolt is somewhat big footpath, and can keep chimeric with described fitting portion spline
Described bolt before.
It addition, also provide for a kind of hub unit bearing, it has the static circle and rotation that can configure with the relative rotation
Circle and the multiple rolling elements being assembled between described static circle and described rotation circle, rotate on circle, towards radial outside described
Projecting have the flange possessing bolt hole, by chimeric, thus by wheel with described bolt hole spline for the bolt with spline part
Side member is mounted on described rotation and encloses, and described hub unit bearing is characterised by,
Described bolt hole have from described bolt insert side be increasingly becoming continuously path the first chamfered section and with institute
State the fitting portion that the spline part spline of bolt is chimeric, described bolt have from the anti-bolt head side of described spline part continuously by
Gradually becoming the taper surface of path and be in a ratio of the foundation minor diameter part of path with described fitting portion, described first chamfered section has energy
Described bolt is held in bolt hole by enough any one abuttings for described taper surface or the crest line of described spline part
Opening angle, below the opening angle that opening angle is described taper surface of described first chamfered section.
According to this utility model, using the teaching of the invention it is possible to provide a kind of when to hub stud holes press-in boss bolt, it is possible to along wheel hub spiral shell
The axis direction of keyhole keeps the hub unit bearing of the posture of boss bolt.
Accompanying drawing explanation
Fig. 1 is the sectional view of the hub unit bearing representing the first embodiment.
Fig. 2 is the partial sectional view of the major part representing the first embodiment, and (a) of Fig. 2 represents to bolt hole press-in
State before bolt, (b) of Fig. 2 represents the state that bolt is chimeric with bolt hole spline.
Fig. 3 is the partial sectional view of the major part of exploded representation the first embodiment.
Fig. 4 is the partial sectional view of the main part representing the second embodiment, represents before bolt hole dump bolt
State, (a) of Fig. 4 represents the state that the taper surface of bolt abuts with the first chamfered section of bolt hole, (b) expression spiral shell of Fig. 4
The state that the crest line of the spline part of bolt abuts with the first chamfered section of bolt hole.
Fig. 5 is the partial sectional view that partial enlargement represents the hub unit bearing of prior art.
Detailed description of the invention
(the 1st embodiment)
Fig. 1～3 represents the hub unit bearing of the first embodiment.The hub unit bearing of present embodiment is inner ring rotation
The driven pulley use of transition, has the outer ring 1 as static circle, as wheel hub ring 19 and the multiple rolling element (ball) rotating circle
29。
The fixing flange 5 that outer ring 1 has in outer diameter face and stub axle (vehicle-body-side component) is fixing, and including
There is on side face multiple row outer ring raceway 7a, 7b.Wheel hub ring 19 has for by wheel 80 and brake disc 90 etc. (wheel-side members)
Link fixing hub flange 20 via boss bolt 70 and nut 71, and there is in outer diameter face multiple row inner ring raceway
21、27.Wheel hub ring 19, and can by being separately assembled to the rolling element 29 between outer ring raceway 7a, 7b and inner ring raceway 21,27
Configure with the relative rotation with outer ring 1.Additionally, the A3 in figure represents axial, A4 represents radially.
Hub flange 20 is from the axial end portion of the outer diameter face of wheel hub ring 19, high to exceed the regulation of outer ring 1 to radial outside
Spend projecting, and circumferentially spaced predetermined distance ground has multiple hub stud holes 30.
It is fitted together at hub stud holes 30 internal spline and has boss bolt 70.The composition of hub stud holes 30 includes: the first chamfering
Portion 31, it (is opposition side with mounting plane 20b from inserting the anti-mounting plane 20a of side as boss bolt 70 in the axial direction
Face) side is increasingly becoming path continuously；Second chamfered section 32, it is increasingly becoming path continuously from mounting plane 20b side；Chimeric
Portion 33, it is set to cylindrical shape continuously with the second chamfered section 32, and the spline part 70c for boss bolt 70 nips and spline is fitted together to；
With cylindric guide portion 34, it is continuously formed between the first chamfered section 31 and fitting portion 33.
First chamfered section 31 plays a role as the guide portion when inserting boss bolt 70 to hub stud holes 30.With
First chamfered section 31 is compared, and the axial length of the second chamfered section 32 is formed long, and opening angle is formed greatly.Thus, because of wheel hub spiral shell
Mounting plane 20b will not be impacted by the deformation of the fitting portion 33 that bolt 70 is nipped and produced, and it is possible to keep peace well
The flatness of dress plane 20b side.
Fitting portion 33 is formed as the external diameter of the spline part 70c with boss bolt 70 and is in a ratio of the cylindrical shape of path, by
Nip with it during the press-in of boss bolt 70 and to be capable of spline chimeric.Fitting portion 33 has the hardness lower than spline part 70c.
Guide portion 34 is formed as cylindric, and the internal diameter of this cylindrical shape is in a ratio of big footpath, with spline with the internal diameter of fitting portion 33
It is somewhat big footpath that the external diameter of portion 70c is compared, and when spline part 70c is inserted, it is possible to by boss bolt 70 along hub stud holes
The C1 direction, axle center of 30 keeps.Specifically, when the internal diameter of fitting portion 33 is set to r1, the internal diameter of guide portion 34 is set to r2, will
When the external diameter of spline part 70c is set to r3, there is the relation of r1 ＜ r3 ＜ r2.Additionally, in figs. 1 to 3, for ease of understanding say
Bright present embodiment, to emphasize that the internal diameter between fitting portion 33 from guide portion 34 represents in the way of different.
The axial length of fitting portion 33 is formed bigger than the axial length of guide portion 34.Guide portion 34 has makes wheel hub spiral shell
Can be kept by boss bolt 70 under the state that the axle center C2 of bolt 70 mates with the C1 direction, axle center of hub stud holes 30 is axial
Length.Specifically, fitting portion 33 has the axial length of about 2 times of guide portion 34.
The composition of boss bolt 70 includes: the boss bolt head abutted with the anti-mounting plane 20a of hub flange 20
70a；And it is in a ratio of path, and the axle portion 70b being formed continuously with boss bolt head 70a with boss bolt head 70a.
A part near the axle portion 70b of boss bolt head 70a is formed with spline part 70c.Spline part 70c is at axle
It is configured with multiple row in the circumference of portion 70b and there is the rib of specific length and minimal thickness vertically, thus in the outer diameter face of axle portion 70b
It is formed multiple concavo-convex.
Spline part 70c is formed as, and is in a ratio of big footpath with the internal diameter of the fitting portion 33 of hub stud holes 30, and with guide portion 34
Internal diameter compare somewhat for path.It is somewhat path compared with the internal diameter of guide portion 34 it is meant that in the press-in of boss bolt 70
Before, it is possible to make the diameter dimension that boss bolt 70 is placed in hub stud holes 30 as the crow flies.
Axle portion 70b having with the side that bolt head is contrary compared with fitting portion 33 somewhat for path at spline part 70c
Foundation minor diameter part 70e, and there is the taper being increasingly becoming path from spline part 70c towards foundation minor diameter part 70e continuously
Face 70d.
According to present embodiment, boss bolt 70 be formed from the first chamfered section 31 of anti-mounting plane 20a side guide and
It is inserted in hub stud holes 30.And, as long as the spline part 70c of the boss bolt inserted 70 is in up to guide portion 34,
Boss bolt 70 just can be made to place as the crow flies in hub stud holes 30.Therefore, when spline part 70c is pressed into fitting portion 33
And when making its spline be fitted together to, it is possible to do not make boss bolt 70 be fixed on hub stud holes 30 obliquely.
Additionally, by the big footpath of part, bolt head side making spline part 70c, and can be configured to, make spline part 70c's
Overall region is chimeric with the overall region spline of fitting portion 33 and guide portion 34.
(the second embodiment)
Fig. 4 represents the second embodiment.The hub stud holes 30 of present embodiment has: for the spline part of boss bolt 70
The cylindric fitting portion 33 that 70c is chimeric；First arranged continuously from the axial end portion of the anti-mounting plane 20a side of fitting portion 33
Chamfered section 31；The second chamfered section 32 being continuously provided with the axial end portion of the mounting plane 20b side from fitting portion 33.
In the present embodiment shown in (a) of Fig. 4, it is configured to, by making the taper surface 70d and first of boss bolt 70
Chamfered section 31 abuts, and before the press-in of boss bolt 70, makes boss bolt 70 place as the crow flies in hub stud holes 30.
The external diameter of spline part 70c and the maximum diameter part (bolt insert port side) of the first chamfered section 31 are in a ratio of big footpath, and
The external diameter of the spline part 70c side of taper surface 70d is formed as big footpath compared with the internal diameter of fitting portion 33.And, the first chamfered section 31
Opening angle roughly the same with the opening angle of taper surface 70d.
According to present embodiment, before the press-in of boss bolt 70, it is possible to make the taper surface 70d and first of boss bolt 70
Chamfered section 31 is abutted by face, thus enables that boss bolt 70 is placed in hub stud holes 30 as the crow flies.It addition, when making
When taper surface 70d and the first chamfered section 31 abut, foundation minor diameter part 70e is positioned at fitting portion 33 with the state of substantially sliding contact
In, thus improve posture and keep effect.
When being pressed into boss bolt 70, spline part 70c nips towards fitting portion 33 from the first chamfered section 31, thus first falls
Corner 31 with fitting portion 33 together, is also set to the hardness lower than spline part 70c.Additionally, present embodiment other constitute with
And other action effects and the first embodiment identical.
(b) of Fig. 4 represents modified embodiment of the present embodiment.In variation, the opening angle of the first chamfered section 31 is set as
Below the opening angle of taper surface 70d.
By this composition, boss bolt 70 can make the crest line of spline part 70c and the first chamfered section 31 abut, thus,
Before the press-in of boss bolt 70, it is possible to make boss bolt 70 place as the crow flies in hub stud holes 30.
Industrial applicibility
This utility model can be used in and make boss bolt be pressed into chimeric wheel hub in the hub stud holes of hub flange
Unit bearing.
Claims (2)
1. a hub unit bearing, it has the static circle that can configure with the relative rotation and rotates circle and be assembled to institute
State the multiple rolling elements between static circle and described rotation circle,
Rotate on circle described, towards radial outside projecting have possess the flange of bolt hole,
The bolt with spline part is chimeric with described bolt hole spline, thus wheel-side members is mounted on described rotation
Circle, described hub unit bearing is characterised by,
Described bolt hole have from described bolt insert side be increasingly becoming continuously path the first chamfered section and with described spiral shell
The fitting portion that the spline part spline of bolt is chimeric,
It is provided with guide portion between described first chamfered section and described fitting portion,
Described guide portion is somewhat big footpath compared with the external diameter of the spline part of described bolt, and can keep and described fitting portion flower
Described bolt before key is chimeric.
2. a hub unit bearing, it has the static circle that can configure with the relative rotation and rotates circle and be assembled to institute
State the multiple rolling elements between static circle and described rotation circle,
Rotate on circle described, towards radial outside projecting have possess the flange of bolt hole,
The bolt with spline part is chimeric with described bolt hole spline, thus wheel-side members is mounted on described rotation
Circle, described hub unit bearing is characterised by,
Described bolt hole have from described bolt insert side be increasingly becoming continuously path the first chamfered section and with described spiral shell
The fitting portion that the spline part spline of bolt is chimeric,
Described bolt have from described spline part with bolt head opposite side be increasingly becoming continuously path taper surface and
With the foundation minor diameter part that described fitting portion is in a ratio of path,
Described first chamfered section has any one abutting of the crest line that can supply described taper surface or described spline part will
Described bolt is held in the opening angle in bolt hole,
Below the opening angle that opening angle is described taper surface of described first chamfered section.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-207839 | 2015-10-22 | ||
| JP2015207839A JP6575294B2 (en) | 2015-10-22 | 2015-10-22 | Hub unit bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205686087U true CN205686087U (en) | 2016-11-16 |
Family
ID=57428147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620567001.9U Expired - Fee Related CN205686087U (en) | 2015-10-22 | 2016-06-13 | Hub unit bearing |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6575294B2 (en) |
| CN (1) | CN205686087U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113635734A (en) * | 2021-08-20 | 2021-11-12 | 安徽江淮汽车集团股份有限公司 | Warm braw water pipe fixing device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019073145A (en) * | 2017-10-16 | 2019-05-16 | 日本精工株式会社 | Hub unit bearing |
| KR102194335B1 (en) * | 2018-11-30 | 2020-12-22 | 주식회사 일진글로벌 | Wheel hub and wheel bearing assembly comprising same |
| CN114228390A (en) * | 2021-12-29 | 2022-03-25 | 长葛市烁宇机械有限公司 | High lightweight wheel hub of durability |
-
2015
- 2015-10-22 JP JP2015207839A patent/JP6575294B2/en active Active
-
2016
- 2016-06-13 CN CN201620567001.9U patent/CN205686087U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113635734A (en) * | 2021-08-20 | 2021-11-12 | 安徽江淮汽车集团股份有限公司 | Warm braw water pipe fixing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017077858A (en) | 2017-04-27 |
| JP6575294B2 (en) | 2019-09-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161116 Termination date: 20200613 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |