CN208381117U - Thin-walled deep groove ball bearing retainer structure - Google Patents
Thin-walled deep groove ball bearing retainer structure Download PDFInfo
- Publication number
- CN208381117U CN208381117U CN201820695793.7U CN201820695793U CN208381117U CN 208381117 U CN208381117 U CN 208381117U CN 201820695793 U CN201820695793 U CN 201820695793U CN 208381117 U CN208381117 U CN 208381117U
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- China
- Prior art keywords
- retainer
- steel ball
- hole
- outer ring
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- Expired - Fee Related
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Abstract
The utility model provides a kind of thin-walled deep groove ball bearing retainer structure, it includes outer ring, inner ring, steel ball and retainer, outer ring, inner ring coaxial placement, retainer are arranged between outer ring, inner ring, steel ball is embedded on retainer, steel ball is the 1/2~3/4 of bearing sections width dimensions, and filling out ball angle is 182o~192o；Outer ring raceway deviates 0.8~1.2mm of outer ring width center, and bear inner ring grooved railway deviates 0.6~1.2mm of inner race width center；The pocket hole of retainer includes spherical packet hole and cylindricality pocket hole, and two kinds of pocket holes are arranged alternately on retainer.The utility model bearing steel ball quantity is more, and two neighboring steel ball spacing is small, is designed by the way of being spaced the locking point in pocket hole.In retainer installation process, steel ball is clicked through in spherical packet hole by squeezing lock, and cylindricality pocket boring ratio ball size is much larger, the too small problem in lock point deformation space when remaining steel ball assembles caused by having enough spaces that can alleviate because of steel ball extruding spherical packet hole lock point.
Description
Technical field
The utility model relates to construction design of journal bearings fields, and in particular to ball bearing retainer design.
Background technique
Industrial robot is multi-joint manipulator or multivariant installations towards industrial circle, it can hold automatically
Row work is a kind of machine that various functions are realized by self power and control ability.During " 12th Five-Year Plan ", National 863
Multiple projects such as project, national supporting plan major project, international cooperation major project all relate to robot project.It is domestic each
A area, provinces and cities are also in the Industrial Construction for investing robot energetically.It is wanted as the important critical component bearing in industrial robot
Ask higher.Domestic industry robot self-contained bearing is largely relied on from Japan, Sweden, Germany, Italy, imported from America.Thin-walled
Deep groove ball bearing it is same series in cross sectional dimensions be it is constant, steel ball number is excessive, and adjacent two steel ball spacing become smaller,
Retainer, which is commonly designed each pocket hole, fore shaft.In assembling process, steel ball need to enter in pocket hole by fore shaft, because of fore shaft width
Less than steel ball size size, fore shaft two sides can be squeezed, with the continuous loading of steel ball, the deformable sky of retainer fore shaft
Between gradually reduce, to reach identical deflection and just need bigger power or even be unable to reach the deflection of requirement, be easy to cause
Several last steel balls can not be packed into because steel ball size size is not achieved in fore shaft width, or because protecting caused by excessive dress ball extruding force
Frame lock point is held potential crack occur or even be broken, scratch the problems such as steel ball.
Summary of the invention
The purpose of this utility model is to provide one kind under the premise of meeting load, life requirements, keeps assembly easy.Together
When avoid the thin-walled deep groove ball bearing retainer structure that retainer damages steel ball in assembling process.
Purpose of the utility model is realized as follows: it includes outer ring 1, inner ring 2, steel ball 4, retainer 5.It is outer ring 1, interior
2 coaxial placements, outer ring 1 are enclosed, retainer 5 is equipped between inner ring 2, is embedded in steel ball 4 on retainer 5, ball size is bearing sections
Ball angle is filled out between the o of 182o~192 in the 1/2~3/4 of width dimensions；The deviation of outer ring raceway 6 outer ring width center 0.8~
1.2mm bear inner ring grooved railway 3 deviates 0.6~1.2mm of inner race width center；The pocket hole of retainer 5 includes spherical packet hole 7 and cylindricality pocket
Hole 8, two kinds of pocket holes are arranged alternately on retainer 5.
There are also these following technical characteristics for the utility model:
1, spherical packet hole 7 and cylindricality pocket hole 8 keep same center-diameter size, and 7 lower part of spherical packet hole is spherical designs, spherical surface
A part, spherical part diameter is 0.1~0.3mm bigger than steel ball 4, and top is the conical surface that angle is 40 o, and the two is crossed to form
Lock point 10；Two lock points form fore shaft, and fore shaft width is smaller than steel ball size；Cylindricality pocket hole 8 is a part of cylindrical surface, up and down
Size is the same, and cylindricality pocket bore dia is twice than steel ball size；5 width of spherical packet hole 7 and 8 center deviation retainer of cylindricality pocket hole
Center.
2, outer ring 1 and shell cooperate, not rotary setting；Inner ring 2 rotates together with axis cooperation；Steel ball 4 is in inner ring 2, outer ring 1
Between play a part of support, transmitting load；Retainer 5 constrains the movement of steel ball 4, and avoids 4 sequence of sanqu songs within a particular musical mode of steel ball.Ball size, number
The selection of amount ensure that the bearing capacity of bearing.
3, outer ring raceway 6, bear inner ring grooved railway 3, retainer pocket hole center deviation widthwise central make retainer curb girder 9 have foot to have
Space thicken, guarantee retainer curb girder 9 intensity requirement.
4, there is lock point 10 in 5 only one pocket hole of two neighboring pocket hole of retainer, and the lock point 10 on spherical packet hole 7 guarantees to keep
Frame will not axially be dropped out from bearing.Cylindricality pocket hole 8 is staggered with spherical packet hole 7, and adjacent two steel ball spacing is made to become larger, and keeps
Frame can be installed smoothly.The problem of avoiding last several steel ball assembly difficultys, decrease because assembly force it is excessive caused by guarantor
Cracked or fracture possibility at frame lock point is held, while avoiding scuffing of the lock point to steel ball.
The utility model bearing steel ball quantity is more, and two neighboring steel ball spacing is small, by the way of being spaced the locking point in pocket hole
It is designed.In retainer installation process, steel ball is clicked through in spherical packet hole by squeezing lock, cylindricality pocket boring ratio ball size
It is much larger, point deformation is locked when remaining steel ball assembles caused by there are enough spaces that can alleviate because of steel ball extruding spherical packet hole lock point
The too small problem in space.The utility model combination actual working conditions, which do the mating thin-walled large size deep groove ball bearing of robot, to be optimized
Design, optimizes the retainer pocket hole of bearing.Under the premise of meeting load, life requirements, keep assembly easy.Together
When avoid damage of the retainer to steel ball in assembling process.The design meets requirement of the market to product, alternative imported bearing.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is retainer structural schematic diagram.
Specific embodiment
The utility model is further described in the following with reference to the drawings and specific embodiments:
In conjunction with Fig. 1-2, the present embodiment includes outer ring 1, inner ring 2, steel ball 4, retainer 5.Outer ring 1,2 coaxial placement of inner ring,
Equipped with steel ball 4 is embedded on retainer 5, retainer 5 between outer ring 1, inner ring 2, ball size is the 1/2 of bearing sections width dimensions
~3/4, ball angle is filled out between the o of 182o~192；Outer ring raceway 6 deviates 0.8~1.2mm of outer ring width center, and bear inner ring grooved railway 3 is inclined
From 0.6~1.2mm of inner race width center；The pocket hole of retainer 5 includes spherical packet hole 7 and cylindricality pocket hole 8, and two kinds of pocket holes are alternately arranged
Cloth is on retainer 5.
Spherical packet hole 7 and cylindricality pocket hole 8 keep same center-diameter size, and 7 lower part of spherical packet hole is spherical designs, spherical surface
A part, spherical part diameter are 0.1~0.3mm bigger than steel ball 4, and top is the conical surface that angle is 40 o, and the two is crossed to form lock
Point 10；Two lock points form fore shaft, and fore shaft width is smaller than steel ball size；Cylindricality pocket hole 8 is a part of cylindrical surface, upper and lower ruler
Very little the same, cylindricality pocket bore dia is twice than steel ball size；In 5 width of spherical packet hole 7 and 8 center deviation retainer of cylindricality pocket hole
The heart.
Outer ring 1 and shell cooperate, not rotary setting；Inner ring 2 rotates together with axis cooperation；Steel ball 4 inner ring 2, outer ring 1 it
Between play a part of support, transmitting load；Retainer 5 constrains the movement of steel ball 4, and avoids 4 sequence of sanqu songs within a particular musical mode of steel ball.Ball size, quantity
Selection ensure that the bearing capacity of bearing.
Outer ring raceway 6, bear inner ring grooved railway 3, retainer pocket hole center deviation widthwise central, have retainer curb girder 9 has enough
Space thickeies, and guarantees the intensity requirement of retainer curb girder 9.
There is lock point 10 in 5 only one pocket hole of two neighboring pocket hole of retainer, and the lock point 10 on spherical packet hole 7 guarantees retainer
It will not axially be dropped out from bearing.Cylindricality pocket hole 8 is staggered with spherical packet hole 7, so that adjacent two steel ball spacing is become larger, retainer
It can smoothly install.The problem of avoiding last several steel ball assembly difficultys, decrease because assembly force it is excessive caused by holding
Cracked or fracture possibility at frame lock point, while avoiding scuffing of the lock point to steel ball.
Claims (5)
1. a kind of thin-walled deep groove ball bearing retainer structure, it is characterised in that it includes outer ring, inner ring, steel ball and retainer, outside
Circle, inner ring coaxial placement, retainer are arranged between outer ring, inner ring, and steel ball is embedded on retainer, and steel ball is bearing sections width
The 1/2~3/4 of size, filling out ball angle is the o of 182o~192；Outer ring raceway deviates 0.8~1.2mm of outer ring width center, inner ring ditch
Deviate 0.6~1.2mm of inner race width center in road；The pocket hole of retainer includes spherical packet hole and cylindricality pocket hole, two kinds of pocket hole alternatings
It is arranged on retainer.
2. a kind of thin-walled deep groove ball bearing retainer structure according to claim 1, it is characterised in that the spherical packet
Hole and cylindricality pocket hole keep same center-diameter size, and spherical packet hole lower part is spherical designs, a part of spherical surface, and spherical part is straight
Diameter is 0.1~0.3mm bigger than steel ball 4, and top is the conical surface that angle is 40 o, and the two is crossed to form lock point；Two lock points form lock
Mouthful, fore shaft width is smaller than steel ball size.
3. a kind of thin-walled deep groove ball bearing retainer structure according to claim 2, it is characterised in that the cylindricality pocket
Hole is a part of cylindrical surface, and upper and lower size is the same, and cylindricality pocket bore dia is twice than steel ball size.
4. a kind of thin-walled deep groove ball bearing retainer structure according to claim 3, it is characterised in that the spherical packet
Hole and cylindricality pocket hole center deviation retainer widthwise central.
5. a kind of thin-walled deep groove ball bearing retainer structure according to claim 4, it is characterised in that the retainer
There is lock point in only one pocket hole of two neighboring pocket hole, and cylindricality pocket hole is staggered with spherical packet hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820695793.7U CN208381117U (en) | 2018-05-11 | 2018-05-11 | Thin-walled deep groove ball bearing retainer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820695793.7U CN208381117U (en) | 2018-05-11 | 2018-05-11 | Thin-walled deep groove ball bearing retainer structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208381117U true CN208381117U (en) | 2019-01-15 |
Family
ID=64970221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820695793.7U Expired - Fee Related CN208381117U (en) | 2018-05-11 | 2018-05-11 | Thin-walled deep groove ball bearing retainer structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208381117U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110826162A (en) * | 2019-12-16 | 2020-02-21 | 中国航发哈尔滨轴承有限公司 | Design method of double-half inner ring ball bearing inner and outer double-locking structure retainer |
-
2018
- 2018-05-11 CN CN201820695793.7U patent/CN208381117U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110826162A (en) * | 2019-12-16 | 2020-02-21 | 中国航发哈尔滨轴承有限公司 | Design method of double-half inner ring ball bearing inner and outer double-locking structure retainer |
| CN110826162B (en) * | 2019-12-16 | 2023-04-07 | 中国航发哈尔滨轴承有限公司 | Design method of double-half inner ring ball bearing inner and outer double-locking structure retainer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190115 Termination date: 20190511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |