CN205605642U - Prevent inner circle and deviate from type flange outer lane angular contact thrust ball bearing unit - Google Patents
Prevent inner circle and deviate from type flange outer lane angular contact thrust ball bearing unit Download PDFInfo
- Publication number
- CN205605642U CN205605642U CN201620446527.1U CN201620446527U CN205605642U CN 205605642 U CN205605642 U CN 205605642U CN 201620446527 U CN201620446527 U CN 201620446527U CN 205605642 U CN205605642 U CN 205605642U
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- CN
- China
- Prior art keywords
- ring
- inner ring
- raceway groove
- bearing unit
- inner circle
- 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.)
- Withdrawn - After Issue
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Abstract
The embodiment of the utility model discloses prevent inner circle and deviate from type flange outer lane angular contact thrust ball bearing unit, it includes outer lane, two inner circles and two steel balls at least, both ends have wide terminal surface and narrow end face respectively about the axial of inner circle, two inner circles along the axial overlap side by side locate the outer lane in, and the narrow end facial features of two inner circles is to the setting and leave and carry clearance delta in advance, offered the ring channel between channel and the narrow end face on the surface of inner circle outside it, the cover is equipped with the anticreep device that is used for preventing the relative outer lane of inner circle axial and outwards deviates from on this ring channel. The embodiment of the utility model provides a, offered the ring channel between channel and the narrow end face on the surface of inner circle outside it, the cover is equipped with the anticreep device that is used for preventing the relative outer lane of inner circle axial and outwards deviates from on the ring channel, thoroughly avoids the bearing unit to collide with, load in mixture because of the steel ball appears in the separation sequence of sanqu songs within a particular musical mode to mismatch with the lasso in the turnover, when safeguarding and installing and use and lead to the fact bearing performance to descend, guarantees the bearing quality, improves the installation effectiveness, reduces use cost.
Description
Technical field:
This utility model relates to a kind of bearing unit, a kind of anti-inner ring abjection type flange outer ring angular contact
Thrust ball bearing unit.
Background technology:
The double inner ring double row angular contact thrust ball bearing unit of existing " DB " type configuration, outside it at least includes
Circle, two inner rings and two row steel balls, the inner surface of described outer ring is axially spaced offer two in raceway groove,
The outer raceway groove corresponding with described interior raceway groove is offered, an axial left side for described inner ring on the outer surface of described inner ring
Right two ends are respectively provided with wide end surface and narrow end surface, and two inner rings are sheathed in outer ring the most side by side, and two inner rings
Narrow end surface be oppositely arranged and leave pre-load clearance δ, described two row steel balls be respectively arranged on described two in raceway groove with
Between outer raceway groove, between steel ball and interior raceway groove and outer raceway groove, form contact angle.For loading relatively big and greater number
Steel ball, it is thus achieved that higher axial load ability and axial rigidity, this bearing unit be usually designed to outer ring without
Lock ball mouth, i.e. chainless between inner ring and steel ball and outer ring, it is possible to outer ring relatively is deviate from axially outward, producing
Turnover, install and use during often there is separating the steel ball that sequence of sanqu songs within a particular musical mode situation causes and collide with, load in mixture and mismatch with lasso,
Bearing performance is caused to decline.
Summary of the invention:
For overcome above-mentioned existing bearing unit produce turnover, install and use during, its inner ring and steel ball energy
Enough relative outer rings are deviate from axially outward, often occur separating sequence of sanqu songs within a particular musical mode situation during producing turnover, installing and using
The steel ball caused collides with, load in mixture and mismatch with lasso, causes the problem that bearing performance declines, and this utility model is real
Execute example and provide a kind of anti-inner ring abjection type flange outer ring angular contact thrust ball bearing unit.
Anti-inner ring abjection type flange outer ring angular contact thrust ball bearing unit, it at least includes outer ring, in two
Circle and two row steel balls, the inner surface of described outer ring is axially spaced offer two in raceway groove, described inner ring
Outer surface on offer the outer raceway groove corresponding with described interior raceway groove, the two ends, axial left and right of described inner ring are divided
Not having wide end surface and narrow end surface, two inner rings are sheathed in outer ring the most side by side, and the narrow end surface of two inner rings
Be oppositely arranged and leave pre-load clearance δ, described two row steel balls be respectively arranged on described two in raceway groove and outer raceway groove it
Between, form contact angle between steel ball and interior raceway groove and outer raceway groove；In its outer raceway groove on the outer surface of described inner ring
And offer cannelure between narrow end surface, this cannelure is arranged with for prevent inner ring relative to outer ring axially to
The anti-drop device of outer abjection.
This utility model embodiment, the outer surface of inner ring offers annular between its outer raceway groove and narrow end surface
Groove, cannelure is arranged with the anti-drop device for preventing inner ring from deviating from axially outward relative to outer ring, thoroughly keeps away
Exempt from bearing unit when having enough to meet the need, safeguarding and install and use because the separation sequence of sanqu songs within a particular musical mode occurs that steel ball collides with, loads in mixture and lasso
Mismatch and cause bearing performance to decline, it is ensured that bearing quality, improve installation effectiveness, reduce use cost.
Further, this utility model embodiment can be improved by following scheme:
Outer diameter D p of described anti-drop device meets: Dp-Di > De-2Dw-Di；Wherein, described Di is inner ring
The diameter of outer raceway groove, described De is the diameter in outer-ring inner road, and described Dw is steel ball size.
Described anti-drop device is O type elastic rubber ring.
Described pre-load clearance δ meets:Described B is bearing unit
Total curvature, described α0For not applying the contact angle of axial pre tightening force, described αpFor applying axial pre tightening force
Contact angle after Fao, Z is steel ball sum, DWFor steel ball size, K is that the axial deformation of bearing unit is normal
Amount.
Described outer race shaft is to the left or right side is provided with outwardly radial flange, and this radial flange is offered
There are some flange mounting holes.
Accompanying drawing illustrates:
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, embodiment will be described below
The accompanying drawing used required in is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of utility model, for those of ordinary skill in the art, are not paying creative work
On the premise of, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is that bearing unit of the present utility model (eliminating left side inner ring) is without pre-load clearance optimization side
Method process is with the trap schematic diagram before removal reconditioning quality Δ；
Fig. 2 is the bearing unit of the present utility model schematic diagram before not applying any axial pre tightening force；
Fig. 3 is the bearing unit of the present utility model schematic diagram after applying axial pre tightening force Fao.
Detailed description of the invention:
In order to make this utility model be solved the technical problem that, technical scheme and beneficial effect more clear bright
In vain, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that
Specific embodiment described herein, only in order to explain this utility model, is not used to limit this practicality new
Type.
As in figure 2 it is shown, anti-inner ring abjection type flange outer ring angular contact thrust ball bearing unit, it at least includes
1, two, outer ring inner ring 2 and two row steel balls 3, the inner surface of described outer ring 1 is axially spaced to be offered
Raceway groove in having two, the outer surface of described inner ring 2 offers the outer raceway groove corresponding with described interior raceway groove, institute
The two ends, axial left and right stating inner ring 2 are respectively provided with wide end surface and narrow end surface, and two inner rings are sheathed on the most side by side
In outer ring 1, and the narrow end surface of two inner rings 2 is oppositely arranged and leaves pre-load clearance δ, described two row steel balls 3
In being respectively arranged on described two between raceway groove and outer raceway groove, formed between steel ball 3 with interior raceway groove and outer raceway groove and contact
Angle；Between its outer raceway groove and narrow end surface, cannelure is offered, this cannelure on the outer surface of described inner ring 2
On be arranged with the anti-drop device 4 for preventing the relative outer ring 1 of inner ring 2 from deviating from axially outward.
This utility model embodiment, the outer surface of inner ring offers annular between its outer raceway groove and narrow end surface
Groove, cannelure is arranged with the anti-drop device for preventing inner ring from deviating from axially outward relative to outer ring, thoroughly keeps away
Exempt from bearing unit when having enough to meet the need, safeguarding and install and use because the separation sequence of sanqu songs within a particular musical mode occurs that steel ball collides with, loads in mixture and lasso
Mismatch and cause bearing performance to decline, it is ensured that bearing quality.
Further, outer diameter D p of described anti-drop device 4 meets: Dp-Di > De-2Dw-Di；Wherein, institute
Stating the diameter that Di is the outer raceway groove of inner ring 2, described De is the diameter of raceway groove in outer ring 1, and described Dw is steel
Ball 3 diameter.Can effectively prevent the relative outer ring 1 of inner ring 2 from deviating from axially outward.
Specifically, described anti-drop device 4 is O type elastic rubber ring.Bearing group timing O type gum elastic
Circle dodges arrival setting position in footpath at the bottom of steel ball with inner ring elasticity under thrust, utilizes diameter difference to rise during free state
To anti-separation effect, simple in construction, can effectively prevent the relative outer ring 1 of inner ring 2 from deviating from axially outward.Simultaneously
Anti-drop device uses gum elastic to make, and can prevent plowing from steel ball surface.
When inner ring 2 produces abjection trend axially outward, described anti-drop device 4 is stopped to have by steel ball 3
Effect prevents the relative outer ring 1 of inner ring 2 from deviating from axially outward, prevents bearing unit from separating, thoroughly avoids bearing list
Unit turnover, safeguard and install and use time occur that steel ball collides with, loads in mixture and mismatch with lasso and make because separating the sequence of sanqu songs within a particular musical mode
Become bearing performance to decline, it is ensured that bearing quality, improve installation effectiveness, reduce use cost.
Yet further, described pre-load clearance δ meets:Described
B is the total curvature of bearing unit, described α0For not applying the contact angle of axial pre tightening force, described αpFor applying
Contact angle after axial pre tightening force Fao, Z is steel ball sum, DWFor steel ball size, K is bearing unit
Axial deformation constant.As shown in Figure 2 and Figure 3, when actually used, only need to be by locking nut (in figure
Not shown) apply axial pre tightening force Fao to inner ring 2, pre-load clearance δ can be eliminated and make bearing unit obtain
The pre-load value of recommendation must be designed, precisely to mate actually required magnitude of load requirement, can obtain meanwhile
Higher rigidity.
Further, axially right side, described outer ring 1 is provided with outwardly radial flange 5, this radial convex
Offer several axial flange being uniformly distributed circumferentially on edge 5 and through hole 51 is installed, pass through axial flange
Through hole 51 is installed can be directly installed on adjacent structure or frame by bearing.Reducing accumulative installation by mistake
Difference, it is ensured that while bearing installation accuracy and other bearing characteristics, facilitates the axial restraint of bearing, simplifies axle
The axial securing means for impeller held, is also convenient for the dismounting of bearing.Meanwhile, the flange two ends of flanged installing hole are through footpath
To scabbling, there is smaller radial to footprint.
Yet further, the anti-inner ring abjection type flange outer ring angular contact thrust ball bearing unit of the present embodiment,
It is by assembling after the processing of pre-load clearance optimization method.
Specifically, as it is shown in figure 1, described pre-load clearance optimization method includes:
Measure the end-play Ga after described outer ring 1, inner ring 2 and steel ball 3 trap；In the present embodiment,
Described end-play Ga can be measured by play instrument.
The magnitude of load recommended according to design requires to apply the axial pre tightening force Fao of corresponding size to inner ring 2；
Calculate inner ring 2 narrow end surface reconditioning quality Δ=Ga/2+δ/2, wherein, described preload between
Gap δ meets:Described B is the total curvature of bearing unit, described α0
For not applying the contact angle of axial pre tightening force, as in figure 2 it is shown, described αpFor applying axial pre tightening force Fao
After contact angle, as it is shown on figure 3, Z be steel ball sum, DWFor steel ball size, K is the axle of bearing unit
To deformation constant；
According to the narrow end surface of reconditioning quality Δ reconditioning two inner ring 2 respectively, as shown in Figure 1.
This utility model embodiment, bearing unit after pre-load clearance optimization method is optimized design, institute
State end-play Ga to be completely eliminated, as shown in Figure 2 and Figure 3, when actually used, only need to be by locking
Nut (not shown) applies axial pre tightening force Fao to inner ring 2, can eliminate pre-load clearance δ and make
Bearing unit obtains the pre-load value that design is recommended, precisely to mate actually required magnitude of load requirement, with
Time, higher rigidity can be obtained.
It is described above as combining one or more embodiments that particular content provides, does not assert that this practicality is new
Being embodied as of type is confined to these explanations.All and method of the present utility model, structure etc. approximate, duplicate,
Or for making some technology deduction or replace under this utility model concept thereof, this practicality all should be considered as
Novel protection domain.
Claims (5)
- The most anti-inner ring abjection type flange outer ring angular contact thrust ball bearing unit, its at least include outer ring, two Individual inner ring and two row steel balls, the inner surface of described outer ring is axially spaced offer two in raceway groove, described The outer raceway groove corresponding with described interior raceway groove is offered, the axially left and right two of described inner ring on the outer surface of inner ring End is respectively provided with wide end surface and narrow end surface, and two inner rings are sheathed in outer ring the most side by side, and two inner rings is narrow End face is oppositely arranged and leaves pre-load clearance δ, described two row steel balls be respectively arranged on described two in raceway groove and outer fissure Between road, between steel ball and interior raceway groove and outer raceway groove, form contact angle；It is characterized in that, outside described inner ring Between its outer raceway groove and narrow end surface, offer cannelure on surface, this cannelure is arranged with in preventing Enclose the anti-drop device that relative outer ring is deviate from axially outward.
- Anti-inner ring abjection type flange outer ring the most as claimed in claim 1 angular contact thrust ball bearing unit, It is characterized in that, outer diameter D p of described anti-drop device meets: Dp-Di > De-2Dw-Di；Wherein, described Di is the diameter of the outer raceway groove of inner ring, and described De is the diameter in outer-ring inner road, and described Dw is steel ball size.
- Anti-inner ring abjection type flange outer ring the most as claimed in claim 1 or 2 angular contact thrust ball bearing list Unit, it is characterised in that described anti-drop device is O type elastic rubber ring.
- Anti-inner ring abjection type flange outer ring the most as claimed in claim 1 or 2 angular contact thrust ball bearing list Unit, it is characterised in that described pre-load clearance δ meets:Described B is the total curvature of bearing unit, described α0For not applying the contact angle of axial pre tightening force, described αpFor applying Contact angle after axial pre tightening force Fao, Z is steel ball sum, DWFor steel ball size, K is bearing unit Axial deformation constant.
- Anti-inner ring abjection type flange outer ring the most as claimed in claim 1 or 2 angular contact thrust ball bearing list Unit, it is characterised in that described outer race shaft is to the left or right side is provided with outwardly radial flange, this footpath Some flange mounting holes are offered on flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620446527.1U CN205605642U (en) | 2016-05-17 | 2016-05-17 | Prevent inner circle and deviate from type flange outer lane angular contact thrust ball bearing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620446527.1U CN205605642U (en) | 2016-05-17 | 2016-05-17 | Prevent inner circle and deviate from type flange outer lane angular contact thrust ball bearing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205605642U true CN205605642U (en) | 2016-09-28 |
Family
ID=56966489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620446527.1U Withdrawn - After Issue CN205605642U (en) | 2016-05-17 | 2016-05-17 | Prevent inner circle and deviate from type flange outer lane angular contact thrust ball bearing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205605642U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805153A (en) * | 2016-05-17 | 2016-07-27 | 中山市盈科轴承制造有限公司 | Angular contact thrust ball bearing unit with flange outer ring and capable of preventing inner rings from separating off |
-
2016
- 2016-05-17 CN CN201620446527.1U patent/CN205605642U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805153A (en) * | 2016-05-17 | 2016-07-27 | 中山市盈科轴承制造有限公司 | Angular contact thrust ball bearing unit with flange outer ring and capable of preventing inner rings from separating off |
| CN105805153B (en) * | 2016-05-17 | 2018-10-09 | 中山市盈科轴承制造有限公司 | Anti- inner ring abjection type flange outer ring angular contact thrust ball bearing unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160928 Effective date of abandoning: 20181009 |
|
| AV01 | Patent right actively abandoned |