CN208845574U - A kind of pivoting support - Google Patents
A kind of pivoting support Download PDFInfo
- Publication number
- CN208845574U CN208845574U CN201821496743.2U CN201821496743U CN208845574U CN 208845574 U CN208845574 U CN 208845574U CN 201821496743 U CN201821496743 U CN 201821496743U CN 208845574 U CN208845574 U CN 208845574U
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- China
- Prior art keywords
- outer ring
- cambered surface
- arc groove
- ball
- pivoting support
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Abstract
The utility model discloses a kind of pivoting supports, it is related to a kind of revolving part, aim to solve the problem that pivoting support ball in the prior art and raceway wear big technical problem, its key points of the technical solution are that including inner ring, outer ring, ball and spacing block, the outer ring surface of inner ring is equipped with outer ring arc groove, the inner ring surface of outer ring is equipped with annular arc groove, annular arc groove includes the first cambered surface and the second cambered surface, outer ring arc groove includes third cambered surface and the 4th cambered surface, the centre of sphere O of ball respectively with the center of circle O1 of the first cambered surface, the center of circle O2 of second cambered surface, the center of circle O3 of third cambered surface and the center of circle O4 of the 4th cambered surface form the angle β between straight line between 80 and 100 degrees, ball is rolled so as to be maintained at the centre of raceway, ball uncertain position in raceway is advantageously reduced to be rolled, Ball is conducive to reduce the deformation of ball and raceway to uniform force, can extend the service life of pivoting support with this.
Description
Technical field
The utility model relates to a kind of revolving parts, more specifically, it relates to a kind of pivoting support.
Background technique
Pivoting support is a kind of large size bearing for being able to bear combined load, can be born simultaneously biggish axial, radial
Load and tilting moment.Pivoting support is called turntable bearing, using very extensively in real industry, is known as " machine
Joint ", be need to make opposite rotary motion between two articles, and need to bear simultaneously axial force, radial force, tilting moment mechanical institute
Required important transmission parts.With the rapid development of machinery industry, pivoting support is in ship equipment, engineering machinery, light industry machine
The industries such as tool, metallurgical machinery, medical machinery, industrial machinery are widely used.
Authorization Notice No. discloses a kind of pivoting support for the Chinese patent of CN201902907U in existing patent, including interior
Circle, outer ring, ball, inner ring are arranged in the mounting groove of outer ring, and the outer circumferential surface of inner ring offers outer ring arc groove, outer ring
Inner circumferential face offers annular arc groove, and annular arc groove, outer ring arc groove cooperate what composition was run for ball
Raceway, ball are evenly arranged in raceway, have ball spacing block between every adjacent ball, and the outer ring is provided with circumferential logical
Hole, the outer end of through-hole is located on the peripheral wall of outer ring, the inner end of through-hole is communicated with the annular arc groove of inner ring, and the outer end of through-hole is set
Be equipped with oil nozzle, the outer ring is circumferentially additionally provided with mounting hole, be provided with blocking in mounting hole, an end face of the blocking be equipped with
The arc groove that annular arc groove matches.
It is worked using pivoting support in the prior art, since inner ring and outer ring is surrounded ball entirely, and it is real
During processing, the inner ring that contacts with ball, outer ring can not be the curved surface being bonded completely with ball, thus lead on border
It causes to become uncertain in the position that inner ring, outer ring are contacted with ball, and this undefined position appears in any position of ball
It sets, and will be deformed because of unbalance stress when contact position is unbalanced, in ball use process, and then reduce revolution branch
The service life held.
Utility model content
In view of the deficienciess of the prior art, being conducive to roll the purpose of this utility model is to provide a kind of pivoting support
Pearl uniform force in raceway extends the service life of pivoting support.
To achieve the above object, the utility model provides following technical solution:
The outer ring surface of a kind of pivoting support, including inner ring and outer ring, the inner ring is equipped with outer ring arc groove, the outer ring
Inner ring surface be equipped with annular arc groove, the outer ring arc groove and annular arc groove, which cooperate, constitutes raceway, described
It is evenly equipped with several balls in raceway, spacing block is equipped between the adjacent ball, the annular arc groove includes the first arc
Face and the second cambered surface, the outer ring arc groove include third cambered surface and the 4th cambered surface, and the centre of sphere O of the ball is respectively with first
The center of circle O1 of cambered surface, the center of circle O2 of the second cambered surface, the center of circle O3 of third cambered surface and the 4th cambered surface center of circle O4 formed straight line it
Between angle β between 80 and 100 degrees.
By using above-mentioned technical proposal, the center of circle O1 of the first cambered surface, the center of circle O2 of the second cambered surface, third cambered surface are utilized
The angle β between straight line that center of circle O3 and the center of circle O4 and ball centre of sphere O of the 4th cambered surface are formed between 80 and 100 degrees, ball
It is rolled so as to be maintained at the centre of raceway, advantageously reduces ball uncertain position in raceway and carry out
It rolls, ball is conducive to reduce the deformation of ball and raceway to uniform force, can extend the longevity of pivoting support with this
Life.
Further, the angle of the angle β is 90 degree.
By using above-mentioned technical proposal, using 90 degree of angle β, the spherical surface of ball and the first cambered surface, the second cambered surface,
Three cambered surfaces and the 4th cambered surface form four point contacts, and this 4 points are evenly distributed on the spherical surface of ball, are conducive to keep ball
It is rolled at the center of raceway, so as to reduce ball and raceway deformation, also can be further improved support of the raceway to ball
Power.
Further, the outer ring arc groove is consistent with the shape of annular arc groove.
It is consistent with the shape of annular arc groove using outer ring arc groove by using above-mentioned technical proposal, ball from
And the position that can be determined in raceway is rolled, and ball uniform force is conducive to, and then reduces ball deformation, so as to
Improve the bearing capacity of pivoting support.
Further, it is provided with mounting hole on the inside of the inner ring, is provided in the mounting hole and mounting hole shape adaptation
Blocking, be axially arranged with the taper location hole through blocking on the side wall of the inner ring and along it, the taper location hole is built-in
Equipped with conical dowel pin.
By using above-mentioned technical proposal, worker is packed into raceway from mounting hole during installation, by ball and spacing block,
Blocking is mounted in mounting hole again, conical dowel pin is finally mounted in taper positioning hole, is pacified so as to fix ball
In raceway, advantageously ensure that pivoting support can be turned round smoothly with this.
Further, the inside of the inner ring is equipped with several grooves, and the bottom wall of the groove, which is equipped with, is through to outer ring
The oil filler point of shape arc groove, the oil filler point are equipped with through type forced filling oil cup far from one end of outer ring arc groove.
By using above-mentioned technical proposal, using through type forced filling oil cup so as to by lubricating grease from oil filler point through type
Forced filling oil cup injects in raceway, the frictional dissipation of ball and raceway is advantageously reduced, so as to extend the service life of pivoting support.
Further, upper seal groove, the inner sidewall of the outer ring are equipped with along its circumferencial direction on the lateral wall of the inner ring
On along its circumferencial direction be equipped with lower seal groove cavity, the upper seal contradicted with cycle surface is equipped in the upper seal groove, under described
The lower seal contradicted with inner ring end wall is equipped in seal groove.
It is beneficial to prevent dust using upper seal and lower seal by using above-mentioned technical proposal and enters in raceway,
It is excessive to be also possible to prevent lubricating grease.
Further, label layer is coated on the spacing block peripheral wall.
By using above-mentioned technical proposal, label layer is coated on spacing block, and it is various sizes of in installation to be conducive to worker
When pivoting support, convenient for distinguishing different spacing blocks, so as to improve worker's installation effectiveness.
Further, the spacing block uses nylon material.
By using above-mentioned technical proposal, using the wear-resisting property of nylon material, so as to ensure ball in raceway
Stable revolution, and improve the service life of pivoting support.
In conclusion the utility model has the following beneficial effects:
1, using the centre of sphere O of ball respectively with the center of circle O1 of the first cambered surface, the center of circle O2 of the second cambered surface, third cambered surface circle
The heart O3 and center of circle O4 of the 4th cambered surface forms the angle β between straight line between 80 and 100 degrees, and ball is so as in raceway
Centre roll, reduce ball unbalance stress, and then reduce ball deformation, be conducive to improve pivoting support service life；
It 2, is 90 degree using the angle of angle β, ball is conducive to reduce rolling so as to roll in the center of raceway
Pearl deformation, and then the service life of pivoting support can be improved；
3, consistent with the shape of annular arc groove using outer ring arc groove, it is rolled so as to improve ball in raceway
Dynamic stability, and then the service life of pivoting support can be improved.
Detailed description of the invention
Fig. 1 is the cross-sectional view of embodiment；
Fig. 2 is the cross-sectional view for embodying oil filler point and through type forced filling oil cup in embodiment；
Fig. 3 is the structural schematic diagram for embodying angle β in embodiment；
Fig. 4 is the structural schematic diagram for embodying spacing block in embodiment.
In figure: 1, inner ring；2, outer ring；3, outer ring arc groove；4, annular arc groove；5, raceway；6, ball；7, it is isolated
Block；71, spherical groove；8, the first cambered surface；9, the second cambered surface；10, third cambered surface；11, the 4th cambered surface；17, mounting hole；18, it blocks up
Plug；19, taper location hole；20, conical dowel pin；21, groove；22, oil filler point；23, through type forced filling oil cup；24, upper sealing
Slot；25, lower seal groove cavity；26, upper seal；27, lower seal；28, label layer.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment:
Referring to Fig.1, a kind of pivoting support comprising the outer ring surface of inner ring 1 and outer ring 2, inner ring 1 is equipped with outer ring arc groove
3, the inner ring surface of outer ring 2 is equipped with annular arc groove 4, and outer ring arc groove 3 and annular arc groove 4, which cooperate, constitutes raceway
5, several balls 6 are evenly equipped in raceway 5, spacing block 7(is equipped between adjacent ball 6 and refers to Fig. 2), outer ring arc groove 3 with
The shape of annular arc groove 4 is consistent.
Referring to Fig. 2, the inside of inner ring 1 is equipped with 6 grooves 21, and the bottom wall of groove 21, which is equipped with, is through to outer ring arc groove
3 oil filler point 22, oil filler point 22 are equipped with through type forced filling oil cup 23, through type pressure injection oil far from one end of outer ring arc groove 3
The height of cup 23 is less than the depth of groove 21；Lubricating grease is injected in raceway 5 by through type forced filling oil cup 23, so as to subtract
Abrasion of the small ball 6(with reference to Fig. 1) in raceway 5 is conducive to the service life for improving pivoting support.
Referring to Fig. 3, annular arc groove 4 includes the first cambered surface 8 and the second cambered surface 9, and outer ring arc groove 3 includes third arc
Face 10 and the 4th cambered surface 11, the centre of sphere O of ball 6 respectively with the center of circle O1 of the first cambered surface 8, the center of circle O2 of the second cambered surface 9, third arc
The center of circle O3 in face 10 and the center of circle O4 of the 4th cambered surface 11 form the angle β between straight line between 80 and 100 degrees, the angle of angle β
Degree is 90 degree；Ball 6 is rolled in the centre of raceway 5, is reduced 6 unbalance stress of ball, is improved the longevity of pivoting support
Life.
Referring to Fig.1, the inside of inner ring 1 is provided with mounting hole 17, is provided in mounting hole 17 and 17 shape adaptation of mounting hole
Blocking 18 is axially arranged with the taper location hole 19 through blocking 18, assembly in taper location hole 19 on the side wall of inner ring 1 and along it
There is conical dowel pin 20；Using mounting hole 17, so as to which ball 6 and spacing block 7 to be mounted in raceway 5, then 18 will be blocked
Be mounted in mounting hole 17, finally conical dowel pin 20 be mounted in taper location hole 19, so as to by ball 6 and isolation
Block 7(refers to Fig. 2) it is mounted in raceway 5, pivoting support may be implemented to turn round.
Referring to Fig.1, it is equipped with upper seal groove 24 along its circumferencial direction on the lateral wall of inner ring 1, along it on the inner sidewall of outer ring 2
Circumferencial direction is equipped with lower seal groove cavity 25, is equipped with the upper seal 26 contradicted with 2 end face of outer ring, lower seal groove cavity 25 in upper seal groove 24
It is interior equipped with the lower seal 27 contradicted with 1 end wall of inner ring；It is lubricated using upper seal 26 and lower seal 27 so as to reduce
Oil spill goes out, and is also possible to prevent dust and enters in raceway 5.
Referring to Fig. 4, spacing block 7 is cylindrical, and both ends of the surface are equipped with spherical groove 71, for accommodating ball 6, spacing block
The diameter at 7 intermediate position is less than the diameter of its end face area, is coated with label layer 28 on 7 peripheral wall of spacing block；Spacing block 7 uses
Nylon material；Ball 6 is separated using spacing block 7, ball 6 rolls in spherical groove 71, using the wearability of nylon material,
Be conducive to reduce the abrasion of spacing block 7, so as to extend the use duration of pivoting support；Using the label layer 28 of spacing block 7,
Be conducive to find corresponding spacing block 7 according to various sizes of pivoting support convenient for worker, effect is installed so as to improve worker
Rate.
Working principle is as follows: ball 6 and spacing block 7 being mounted on outer ring arc groove 3 and annular arc groove 4 is formed
In raceway 5, ball 6 so as to the first cambered surface 8, the second cambered surface 9, third cambered surface 10 and the 4th cambered surface 11 formed point contact,
And then the friction of ball 6 Yu raceway 5 can be reduced, so as to extend the service life of pivoting support.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (8)
1. the outer ring surface of a kind of pivoting support, including inner ring (1) and outer ring (2), the inner ring (1) is equipped with outer ring arc groove
(3), the inner ring surface of the outer ring (2) is equipped with annular arc groove (4), the outer ring arc groove (3) and annular arc groove
(4) it cooperates and constitutes raceway (5), be evenly equipped with several balls (6) in the raceway (5), set between the adjacent ball (6)
There are spacing block (7), it is characterised in that:
The annular arc groove (4) includes the first cambered surface (8) and the second cambered surface (9), and the outer ring arc groove (3) includes the
Three cambered surfaces (10) and the 4th cambered surface (11), the centre of sphere O of the ball (6) respectively with the center of circle O1 of the first cambered surface (8), the second cambered surface
(9) the angle β that the center of circle O3 of center of circle O2, third cambered surface (10) and the center of circle O4 of the 4th cambered surface (11) are formed between straight line exists
Between 80-100 degree.
2. a kind of pivoting support according to claim 1, it is characterised in that: the angle of the angle β is 90 degree.
3. a kind of pivoting support according to claim 1, it is characterised in that: the outer ring arc groove (3) and annular
Arc groove (4) shape is consistent.
4. a kind of pivoting support according to claim 1, it is characterised in that: be provided with mounting hole on the inside of the inner ring (1)
(17), be provided in the mounting hole (17) with the blocking (18) of mounting hole (17) shape adaptation, on the side wall of the inner ring (1)
And the taper location hole (19) through blocking (18) is axially arranged with along it, taper positioning is equipped in the taper location hole (19)
It sells (20).
5. a kind of pivoting support according to claim 1, it is characterised in that: the inside of the inner ring (1) is equipped with several
Groove (21), the bottom wall of the groove (21) are equipped with the oil filler point (22) for being through to outer ring arc groove (3), the oil filler point
(22) one end far from outer ring arc groove (3) is equipped with through type forced filling oil cup (23).
6. a kind of pivoting support according to claim 1, it is characterised in that: along its circle on the lateral wall of the inner ring (1)
Circumferential direction is equipped with upper seal groove (24), and the upper seal (26) contradicted with outer ring (2) end face is equipped in the upper seal groove (24)；
Lower seal groove cavity (25) are equipped with along its circumferencial direction on the inner sidewall of the outer ring (2), are equipped in the lower seal groove cavity (25)
The lower seal (27) contradicted with inner ring (1) end wall.
7. a kind of pivoting support according to claim 1, it is characterised in that: be coated with mark on spacing block (7) peripheral wall
Know layer (28).
8. a kind of pivoting support according to claim 1, it is characterised in that: the spacing block (7) uses nylon material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821496743.2U CN208845574U (en) | 2018-09-12 | 2018-09-12 | A kind of pivoting support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821496743.2U CN208845574U (en) | 2018-09-12 | 2018-09-12 | A kind of pivoting support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208845574U true CN208845574U (en) | 2019-05-10 |
Family
ID=66372922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821496743.2U Active CN208845574U (en) | 2018-09-12 | 2018-09-12 | A kind of pivoting support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208845574U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925295A (en) * | 2019-11-20 | 2020-03-27 | 马鞍山市博创回转支承有限公司 | Slewing bearing and oil injection process thereof |
| CN112128227A (en) * | 2020-08-20 | 2020-12-25 | 北京特种机械研究所 | Articulated slewing bearing device |
| WO2022062231A1 (en) * | 2020-09-28 | 2022-03-31 | 广州视源电子科技股份有限公司 | Clothing care machine |
-
2018
- 2018-09-12 CN CN201821496743.2U patent/CN208845574U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925295A (en) * | 2019-11-20 | 2020-03-27 | 马鞍山市博创回转支承有限公司 | Slewing bearing and oil injection process thereof |
| CN112128227A (en) * | 2020-08-20 | 2020-12-25 | 北京特种机械研究所 | Articulated slewing bearing device |
| WO2022062231A1 (en) * | 2020-09-28 | 2022-03-31 | 广州视源电子科技股份有限公司 | Clothing care machine |
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