CN109899397A - The retainer and deep groove ball bearing of deep groove ball bearing - Google Patents
The retainer and deep groove ball bearing of deep groove ball bearing Download PDFInfo
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- CN109899397A CN109899397A CN201910271871.XA CN201910271871A CN109899397A CN 109899397 A CN109899397 A CN 109899397A CN 201910271871 A CN201910271871 A CN 201910271871A CN 109899397 A CN109899397 A CN 109899397A
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- retainer
- pocket hole
- frame body
- butt weld
- weld
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- 230000003447 ipsilateral effect Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 abstract description 41
- 229910000679 solder Inorganic materials 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000003032 molecular docking Methods 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004021 metal welding Methods 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The retainer of deep groove ball bearing, it includes a pair of of frame body (11) in symmetrical structure, each frame body includes the pocket hole portion (12) and the interconnecting piece (14) that is connected between pocket hole portion along its circumferentially equidistant setting, the corresponding pocket hole portion of a pair of of frame body is capable of forming the pocket hole (13) of retainer, it is connected between corresponding interconnecting piece by butt weld (16), the junction of interconnecting piece and pocket hole portion forms the weld groove of butt weld (16), and the groove face (152) of each weld groove is arc convex surface.By welding, there is no gaps for retainer, avoid operating noise, and offer welding region in place, are suitble to fill solder, it is ensured that welding quality keeps good appearance.In addition, above-mentioned retainer can optimize production process.Additionally provide a kind of deep groove ball bearing with above-mentioned retainer.
Description
Technical field
The invention belongs to bearing parts technical field, in particular to a kind of retainer of deep groove ball bearing.The present invention also relates to
And a kind of deep groove ball bearing with above-mentioned retainer.
Background technique
Rolling bearing structure generally includes inner ring, outer ring, bearing cage and rolling element.The effect of bearing cage is:
It guides and rolling element is driven to roll on correct raceway；Simultaneously rolling element is equally spaced, be evenly arranged on raceway circumference with
It prevents from colliding with each other and rubbing between rolling element when work.Deep groove ball bearing is one of rolling bearing type, generally by one
Outer ring, an inner ring, one group of steel ball and a retainer are constituted.
The bearing retainer of existing deep groove ball bearing is usually to pass through rivet together by two symmetrical frame bodies
's.Specifically, needing to rivet each rivet one by one using electric riveting machine, the mold for riveting rivet is made of upper and lower formed punch.Wherein,
Upper punch is working flushing head, bears high temperature and high pressure when riveting, is manufactured using materials such as high-speed steel or hard alloy.Low punch is
Support formed punch, it is desired to which conductive, contacting with manufactured head should be good, manufactures using high-quality mild steel or brass.When rivet weld, on
Formed punch is mounted in the fixture under electric riveting machine cylinder, and low punch is mounted on the workbench of electric riveting machine, corresponding with upper punch position.Riveting
When connecing, rivet bar is heated to proper temperature in upper, one rivet of upper and lower formed punch control, turn-on current, the upper end of rivet bar, so
Upper punch falls afterwards, forms manufactured head, and retainer is clenched.After riveting process has the following disadvantages: 1, two frame body riveting, frame
Can more or less there be gap between body, so that bearing can generate certain noise at work；2, two frame bodies are riveted, and are needed
Certain equipment and corresponding workload are wanted, increased production cost；3, rivet and when plane out of plumb, frame body can generate diameter
To travelling, rivet is easy to fall off；4, installation rivet has certain difficulty, falls nail problem often, influences job schedule.
Summary of the invention
It is an object of the present invention to provide a kind of retainers of deep groove ball bearing to make to keep by being welded to connect frame body
There is no gaps for frame, avoid operating noise, and offer welding region in place, are suitble to fill solder, it is ensured that welding matter
Amount keeps good appearance.In addition, above-mentioned retainer can simplify production technology, production efficiency and quality are improved.
It is a further object to provide a kind of deep groove ball bearings with above-mentioned retainer.
The present invention provides a kind of retainers of deep groove ball bearing comprising in a pair of of frame body of symmetrical structure, each frame body
Including the pocket hole portion along its circumferentially equidistant setting and the interconnecting piece being connected between pocket hole portion, the corresponding pocket hole portion of a pair of of frame body
It is capable of forming the pocket hole of retainer, is connected between corresponding interconnecting piece by butt weld, the connection of interconnecting piece and pocket hole portion
Place forms the weld groove of butt weld, and the groove face of each weld groove is arc convex surface.It can provide suitably by arc convex surface
Welding region, be suitble to fill solder, it is ensured that welding quality, and be able to maintain good appearance.And welding structure can avoid product and have
Gap exists, and avoids generating operating noise.In addition, the structure of retainer frame body can be simplified after using welding structure, it is conducive to simplify
Production technology improves production efficiency and quality.
In a kind of exemplary embodiment of the retainer of deep groove ball bearing, in the cross section of butt weld, two phases
The angle between line between the initial position and final position of corresponding groove face is α, 60 °≤α≤80 °.It can be with greater than 60 °
Welding efficiency is improved, the time for avoiding exposure to hot environment is upper shorter, it not will cause the problems in thermal stress collection, less than 80 °,
It can guarantee weld strength, improve the working life and reliability of bearing.
In a kind of exemplary embodiment of the retainer of deep groove ball bearing, angle α further satisfaction condition: 67 °≤α
≤73°。
In a kind of exemplary embodiment of the retainer of deep groove ball bearing, interconnecting piece with a thickness of D, and in butt welding
In the cross section of seam, along the short transverse of butt weld, the distance of initial position to its final position of groove face is L, docking
The height of weld seam is H, wherein D≤H≤0.8L.It can guarantee that ball is freely rotated in pocket hole, while in the base for saving solder
Firmness after can ensure that retainer welding on plinth reduces the impacted risk of mechanical performance, meets the work of metal welding engineering
Skill standard.
In a kind of exemplary embodiment of the retainer of deep groove ball bearing, the thickness D of interconnecting piece, the height of butt weld
Distance L of the initial position of H, groove face to its final position in the short transverse of butt weld is spent, further satisfaction condition:
1.1D≤H≤0.7L。
In a kind of exemplary embodiment of the retainer of deep groove ball bearing, set respectively on two frame bodies being mutually butted
There are first identifier and second identifier corresponding with first identifier position.Consistency after can ensure that retainer welding.
In a kind of exemplary embodiment of the retainer of deep groove ball bearing, first identifier and second identifier are respectively provided at
On mutual corresponding interconnecting piece and it is located towards or away from the ipsilateral of retainer axle center.It can be more convenient the docking and detection of retainer.
The present invention also provides a kind of deep groove ball bearings comprising an outer ring, an inner ring, an above-mentioned retainer,
With several balls.Retainer is undertaken between outer ring and inner ring.Each ball is respectively arranged in each pocket hole of retainer.
Hereafter by clearly understandable mode, preferred embodiment is described with reference to the drawings, retainer to deep groove ball bearing and
Above-mentioned characteristic, technical characteristic, advantage and its implementation of deep groove ball bearing are further described.
Detailed description of the invention
Only illustratively description and explain the present invention for the following drawings, not delimit the scope of the invention.
A kind of structural schematic diagram of exemplary embodiment of retainer of the Fig. 1 to illustrate deep groove ball bearing.
Fig. 2 is the A-A of the retainer of the deep groove ball bearing of Fig. 1 to schematic cross-sectional view.
The partial enlargement diagram of retainer of the Fig. 3 to illustrate deep groove ball bearing shown in Fig. 2.
A kind of structural schematic diagram of exemplary embodiment of the Fig. 4 to illustrate deep groove ball bearing.
Label declaration
10 retainers
11 frame bodies
12 pocket hole portions
13 pocket holes
14 interconnecting pieces
15 weld grooves
152 groove faces
16 butt welds
17 first identifiers
18 second identifiers
20 outer rings
30 inner rings
40 balls
Specific embodiment
In order to which the technical features, objects and effects of invention are more clearly understood, the Detailed description of the invention present invention is now compareed
Specific embodiment, identical label indicates that structure is identical or structure is similar but the identical component of function in the various figures.
Herein, " schematic " expression " serving as examplea, instances, or illustrations " should not will be described herein as " showing
Any diagram, the embodiment of meaning property " are construed to technical solution that is a kind of preferred or more having advantages.
To make simplified form, part related to the present invention is only schematically shown in each figure, they are not represented
Its practical structures as product.In addition, to be easy to understand simplified form, with identical structure or function in some figures
Component only symbolically depicts one of those, or has only marked one of those.
In addition, in the description of the present application, it is to be understood that term " center ", "upper", "lower", "front", "rear",
The orientation of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " axial direction ", " radial direction ", " circumferential direction "
Or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the application and simplifies description, and
It is not that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore
It is not considered as limiting the invention.
Term " first ", " second " be used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or
Implicitly indicate the quantity of indicated technical characteristic." first " is defined as a result, the feature of " second " can be expressed or imply
Ground includes one or more of the features.
A kind of structural schematic diagram of exemplary embodiment of retainer of the Fig. 1 to illustrate deep groove ball bearing.Fig. 2 is figure
The A-A of the retainer of 1 deep groove ball bearing is to schematic cross-sectional view.As depicted in figs. 1 and 2, the retainer of deep groove ball bearing
10 include a pair of of frame body 11, and a pair of of frame body is in symmetrical structure.Each frame body 11 includes 12 He of pocket hole portion along its circumferentially equidistant setting
The interconnecting piece 14 being connected between pocket hole portion 12, i.e., as shown in Figure 1, along frame body 11 circumferential direction, pocket hole portion 12 equidistantly arrange,
The also equidistant arrangement of interconnecting piece 14.
As shown in Fig. 2, corresponding pocket hole portion 12 is capable of forming the pocket hole 13 of retainer, pocket hole 13 in a pair of of frame body 11
It can be used for the installation and holding of the ball 40 (Fig. 4 can be participated in simultaneously) of deep groove ball bearing；And lead between corresponding interconnecting piece 14
The connection of butt weld 16 is crossed, the weld groove 15 of the junction formation butt weld 16 of interconnecting piece 14 and pocket hole portion 13 (is clear
Butt weld is omitted in the position for being marked with weld groove 15 in figure in the structure for expressing retainer), the slope of each weld groove 15
Mouth face 152 is arc convex surface.(can referring also to Fig. 3)
Due to forming the weld groove 15 of butt weld 16, and each weld seam slope in the junction of interconnecting piece 14 and pocket hole portion 13
The groove face 152 of mouth 15 is arc convex surface, i.e. round-corner transition, constitutes welding region between two opposing arcs convex surfaces, i.e., such as Fig. 3
It is shown, from can the initial position O to final position F of two groove faces 152 (meeting of two corresponding groove faces 152 and position)
Form the welding region (region that line and two groove faces 152 in figure between two O points surround), it can be in welding process
Butt weld 16 is set in the range of the welding section.Because the welding section is similar to V-arrangement, it is particularly suitable for the filling of solder, it can be true
Protect welding quality.Meanwhile the design influenced by the size of retainer itself it is smaller, it is practical.And it is located at butt weld 16
The welding region will not influence retainer appearance, be conducive to the aesthetics of product entirety.
And entire retainer does not use rivet interlacement, but is linked together by welding manner, makes between frame body 11
Do not have gap presence, advantageously reduce the noise of bearing at work, and can be generated to avoid frame body 11 radial travelling and
Rivet falls off the problem of causing retainer to disintegrate.
In addition, since frame body 11 is full symmetric structure and structure is simple, corresponding to make mould structure also simple.Such as
In some embodiments, frame body can be made using integrated formed structure, the punching press of frame body 11 can be completed in such one set of die
Work simplifies processing technology, improves production efficiency, guarantees manufacturing schedule, reduces production cost, increases productivity effect.And one
Molding frame body 11, each position are all curve transition, and the structures such as any protrusion, groove or through-hole will not be arranged, keep frame body 11 whole
Body is unstressed dead angle avoids frame body 11 from generating deformation, slight crack in stress concentrated position and is even broken, ensures the finished product of part production
Rate.
In a kind of embodiment of the retainer of deep groove ball bearing shown in Fig. 3, in the cross section of butt weld 16,
The angle between line between the initial position and final position of two corresponding groove faces 152 is α, makes 60 °≤α≤80 °.
Since a pair of of frame body of retainer is in symmetrical structure, thus the initial position of two corresponding groove faces 152 and final position it
Between line and the lines of initial position of two corresponding groove faces 152 can constitute an isosceles triangle, isosceles
The top foot region of triangle constitutes the fill part of solder.In the deep groove ball bearing of specification of the same race, the size of steel ball be it is specific,
Correspondingly, the diameter of ball pocket matched with steel ball is also fixed, it is meant that the bottom edge position of above-mentioned isosceles triangle and bottom edge
Length is constant.So the size of apex angle α directly affects the depth of welding section 5: apex angle becomes larger, the depth of corresponding welding region
Degree shoals；Apex angle becomes smaller, and the depth of corresponding welding region deepens.Due to the change of welding region depth, and then related solder can
The height change of loading and butt weld 16.Apex angle becomes larger, and the fillable amount of solder is reduced, the height of butt weld 16 reduces；
Apex angle becomes smaller, and the fillable amount of solder increases, the height of butt weld 16 increases.
Meanwhile the height of weld seam 16 is low, solder is few, then in the welding process, weld interval is short, in the premise for guaranteeing penetration
Under, there is retainer lesser fusion penetration to be conducive to the metallicity of retainer correspondingly, the high temperature influence area to retainer is small
It can be with the maintenance of dimensional parameters.Certainly, solder is very few, and the firmness of welding accordingly reduces.The height of weld seam 16 is high, solder is more,
Then in the welding process, weld interval is long, and under the premise of guaranteeing penetration, retainer has biggish fusion penetration, correspondingly, to guarantor
The high temperature influence area for holding frame expands, and is unfavorable for the maintenance of the metallicity and dimensional parameters of retainer.Certainly, solder increases,
The firmness of welding is accordingly promoted.So this selection of 60 °≤α≤80 ° is very appropriate, welding efficiency can be improved greater than 60 °,
The time for avoiding exposure to hot environment is upper shorter, not will cause the problems in thermal stress collection, less than 80 °, it is ensured that welding
Intensity improves the working life and reliability of bearing.It wherein, in one embodiment, can further preferred condition: 67 °
≤ α≤73 °, in the angular interval, solder dosage is moderate, and the height of butt weld 16 is appropriate, has higher welding efficiency；By
Appropriate in weld interval, the influence to retainer performance and parameter is smaller；Meanwhile the firmness of welding is best, it is ensured that bearing
Has good operating reliability.
Refer to Fig. 3, if interconnecting piece with a thickness of D, and in the cross section of butt weld 16, along the height of butt weld 16
Direction is spent, if the distance of the initial position of groove face 152 to its final position is L, if the height of butt weld 16 is H.Consider
To after retainer welding, it need to guarantee that ball is freely rotated in pocket hole 13, therefore butt weld 16 must not be dry beyond welding region
Disturb the ball activity space in pocket hole 13；Simultaneously it must also be ensured that retainer welding after firmness, also need to adhere to solder
It saves using priciple and takes into account the risk aggravation that above-mentioned 16 excessive height of butt weld causes retainer mechanical performance impacted
Possibility, in conjunction with the technological standards of metal welding engineering, in the present solution, condition need to be met: D≤H≤0.8L.A kind of preferred
In scheme, which be may further be: 1.1D≤H≤0.7L.
In a kind of embodiment of the retainer of deep groove ball bearing shown in Fig. 3, on two frame bodies 11 being mutually butted point
It She You not first identifier 17 and second identifier 18 corresponding with 17 position of first identifier.Because retainer is right by two be mutually butted
The frame body 11 of title is welded, and to guarantee the consistency after retainer welding, needs to seek two 11 Dock With Precision Positions of frame body before welding,
First identifier 17 is set and second identifier 18 is that can guarantee the accuracy of docking, the detection after facilitating welding.To further facilitate
Docking and check, first identifier 17 and second identifier 18 can be respectively provided on the interconnecting piece 14 being mutually butted and be located towards or
Away from the ipsilateral of retainer axle center.After docking, the end of first identifier 17 and second identifier 18 are towards the end of first identifier 17
It fits closely.In the present solution, first identifier 17 is set on the interconnecting piece 14 of left stretcher body 11, second identifier 18 is set to right stretcher body 11
It is the eye-catching bar-shaped marks of color on interconnecting piece 14.After left stretcher body is docked with right stretcher body, two interconnecting pieces 14 are bonded, and are passed through
Whether observation first identifier 17 and second identifier 18 are aligned, and then can easily judge the precision of two frame bodies 11 docking.After welding,
Whether quality inspection personnel can also be aligned according to first identifier 17 and second identifier 18 and then quick and precisely judge the welding of two frame bodies 1
As a result whether qualified.It can be of course be appreciated by those skilled in the art that first identifier 17 and second identifier 18 can be used it is any known
Identification means, it is not limited to it is as shown in the figure.
The present invention also provides a kind of deep groove ball bearings comprising 30, the above-mentioned holdings of inner ring of outer ring 20, one
Frame 10 and several balls 40, retainer 10 are undertaken between outer ring 20 and inner ring 30.Each ball 40 is respectively arranged at retainer 10
Each pocket hole 13 in.
Although not each embodiment only includes one it should be appreciated that this specification describes according to various embodiments
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solutions in the various embodiments may also be suitably combined for bright book, and forming those skilled in the art can be with
The other embodiments of understanding.
The series of detailed descriptions listed above are illustrated only for possible embodiments of the invention,
The protection scope that they are not intended to limit the invention, it is all without departing from equivalent embodiments made by technical spirit of the present invention or change
More, it such as the combination of feature, segmentation or repetition, should all be included in the protection scope of the present invention.
Claims (9)
1. the retainer of deep groove ball bearing, characterized in that it comprises:
In a pair of of frame body (11) of symmetrical structure, each frame body (11) include along its circumferentially equidistant setting pocket hole portion (12) and
The interconnecting piece (14) being connected between pocket hole portion (12), the corresponding pocket hole portion (12) of the pair of frame body (11) being capable of shape
At the pocket hole (13) of the retainer, connected between the corresponding interconnecting piece (14) by butt weld (16), the company
The junction of socket part (14) and the pocket hole portion (13) forms the weld groove (15) of the butt weld (16), each weld seam
The groove face (152) of groove (15) is arc convex surface.
2. retainer as described in claim 1, which is characterized in that in the cross section of the butt weld (16), two opposite
The angle between line between the initial position and final position of the groove face (152) answered is α, 60 °≤α≤80 °.
3. retainer as claimed in claim 2, which is characterized in that the angle α further satisfaction condition: 67 °≤α≤73 °.
4. retainer as described in claim 1, which is characterized in that the interconnecting piece with a thickness of D, and in the butt weld
(16) in cross section, short transverse along the butt weld (16), the initial position of the groove face (152) to its termination
The distance of position is L, and the height of the butt weld (16) is H,
Wherein, D≤H≤0.8L.
5. retainer as claimed in claim 4, which is characterized in that the thickness D of the interconnecting piece, the height of the butt weld
H, distance L of the initial position of the groove face to its final position in the short transverse of butt weld, further satisfaction condition:
1.1D≤H≤0.7L。
6. retainer as described in claim 1, which is characterized in that be respectively equipped on two be mutually butted the frame body (11)
First identifier (17) and second identifier corresponding with the first identifier (17) position (18).
7. retainer as claimed in claim 6, which is characterized in that the first identifier (17) and the second identifier (18) point
It is not located on mutual corresponding interconnecting piece (14) and is located towards or away from the ipsilateral of the retainer axle center.
8. retainer as shown in claim 1, which is characterized in that the frame body (11) is an integral molding structure.
9. deep groove ball bearing comprising:
One outer ring (20)；
One inner ring (30)；
One such as retainer described in any item of the claim 1 to 8 (10), is undertaken in the outer ring (20) and the inner ring
(30) between；With
Several balls (40), each ball (40) are respectively arranged in each pocket hole (13) of the retainer (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910271871.XA CN109899397B (en) | 2019-04-04 | 2019-04-04 | Retainer of deep groove ball bearing and deep groove ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910271871.XA CN109899397B (en) | 2019-04-04 | 2019-04-04 | Retainer of deep groove ball bearing and deep groove ball bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109899397A true CN109899397A (en) | 2019-06-18 |
| CN109899397B CN109899397B (en) | 2024-03-22 |
Family
ID=66955465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910271871.XA Active CN109899397B (en) | 2019-04-04 | 2019-04-04 | Retainer of deep groove ball bearing and deep groove ball bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109899397B (en) |
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| CN204387098U (en) * | 2015-01-05 | 2015-06-10 | 常州市武进永达机械轴承有限公司 | Energy reach is to the compact bearings with radial load |
| JP2018054023A (en) * | 2016-09-29 | 2018-04-05 | Ntn株式会社 | Cage for ball bearing |
| CN210013942U (en) * | 2019-04-04 | 2020-02-04 | 山东金帝精密机械科技股份有限公司 | Retainer of deep groove ball bearing and deep groove ball bearing |
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| CN109899397B (en) | 2024-03-22 |
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