CN209414391U - A kind of four-point contact ball - Google Patents
A kind of four-point contact ball Download PDFInfo
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- CN209414391U CN209414391U CN201920044496.0U CN201920044496U CN209414391U CN 209414391 U CN209414391 U CN 209414391U CN 201920044496 U CN201920044496 U CN 201920044496U CN 209414391 U CN209414391 U CN 209414391U
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- camber line
- raceway
- spin
- centre circle
- inner ring
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Abstract
This application involves technical field of bearings, and disclose a kind of four-point contact ball, including bearing body, the bearing body include inner ring, outer ring and at least one be located at the centre circle in the inner ring and the outer ring, be provided with multiple spin between the adjacent outer ring, the centre circle and the inner ring two-by-two.It is arranged such, multiple Internal and external cycles connect together rotation, can be inner ring and fix, centre circle and outer ring rotating, it is also possible to outer ring and inner ring is fixed, centre circle rotation, is also possible to outer ring and centre circle is fixed, inner ring rotation, in this way, the width of bearing is low, and outer diameter is big, to fully realize the multi-faceted rotation of bearing.
Description
Technical field
This application involves technical field of bearings, more specifically to a kind of four-point contact ball.
Background technique
With the continuous progress of science and technology, in mechanical manufacturing field, bearing using more and more extensive, bearing is a kind of use
In determine rotary shaft and other parts relative motion position, the components of bearing or guiding role, be that carrying gravity, transmitting are dynamic
The component of power.
Existing bearing includes an inner ring, an outer ring, spin, and the holding being arranged between inner ring and outer ring
Frame, spin are arranged on retainer, are kept that frame is evenly spaced, and the bearing of this structure can only be opposite along single in rotation
Direction rotation, has a single function.
Therefore, how to solve the problems, such as that existing bearing opposite can only be rotated along single direction, become those skilled in the art institute
Important technological problems to be solved.
Utility model content
To be overcome the problems, such as present in the relevant technologies at least to a certain extent, the application's is designed to provide one kind four
Point contact ball bearing, be able to solve existing bearing can only the opposite rotation along single direction the problem of, solve original single
Internal and external cycle structure type.
This application provides a kind of four-point contact ball, including bearing body, the bearing body includes inner ring, outer
Circle is located at the centre circle in the inner ring and the outer ring at least one, two-by-two the adjacent outer ring, the mesosphere and institute
It states and is provided with multiple spin between inner ring.
Preferably, parallel with offering two articles on the inner peripheral surface of the centre circle on the inner peripheral surface of the outer ring
One raceway, second raceway parallel with offering two on the outer circumference surface of the centre circle on the outer circumference surface of the inner ring,
First raceway and second raceway are oppositely arranged, and first rolling that is adjacent, being oppositely arranged is arranged in the spin
Between road and second raceway.
It preferably, include the first camber line and the second camber line, first camber line and described on the section of first raceway
The radius of curvature of second camber line is all larger than the radius of the spin, the spin respectively with first camber line and second arc
Line contact, includes third camber line and the 4th camber line on the section of second raceway, the third camber line and the 4th camber line
Radius of curvature be all larger than the radius of the spin, the spin is contacted with the third camber line and the 4th camber line respectively.
Preferably, the bearing body further includes multiple retainers, multiple retainers be separately positioned on the outer ring,
Between multiple mesospheres and the inner ring, the spin is arranged in the pocket hole of the retainer.
Preferably, the bearing body includes a mesosphere, and the quantity of the retainer is four, four guarantors
Frame is held to be separately positioned between the outer ring and the mesosphere between the mesosphere and the inner ring.
Preferably, first raceway offers lubrication groove, and the lubrication groove is located at the spin respectively with described first
Between camber line and the contact point of second camber line.
It preferably, further include multiple sealing rings, the both ends of the bearing body are arranged in, with by the rolling in the sealing ring
Ball is enclosed in first raceway and second raceway.
Preferably, the quantity of the sealing ring is identical as the quantity of first raceway or second raceway.
Preferably, circlip is provided on the outside of the sealing ring, the sealing ring is arranged by the circlip in the axis
Hold the both ends of ontology.
Preferably, it is provided with oil filler point on the sealing ring, is provided with check valve at the oil filler point.
The technical solution that embodiments herein provides can include the following benefits:
This application provides a kind of four-point contact ball, including bearing body, bearing body include inner ring, outer ring and
At least one centre circle, centre circle are provided with rolling between inner ring and outer ring two-by-two between adjacent outer ring, centre circle and inner ring
Ball realizes carrying gravity and transmits the effect of power in this way to form bearing body；Multiple Internal and external cycles connect together rotation, can
To be that inner ring is fixed, centre circle and outer ring rotating；It is also possible to outer ring and inner ring is fixed, centre circle rotation；It is also possible to outer ring in
Circle is fixed, and inner ring rotation, in this way, the width of bearing is low, outer diameter is big, so that the multi-faceted rotation of bearing is fully realized, instead of
One impossible work requirements of bearing.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The application can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and together with specification it is used to explain the principle of the application.
Fig. 1 is that a kind of structural schematic diagram of four-point contact ball shown according to an exemplary embodiment (only includes one
A centre circle)；
Fig. 2 is a kind of structural schematic diagram of the centre circle of four-point contact ball shown according to an exemplary embodiment；
Fig. 3 is the enlarged drawing in the area A of Fig. 1.
In figure:
The outer ring 1-, 2- centre circle, 3- inner ring, 4- spin, 5- retainer, the first raceway of 6-, the second raceway of 7-, the first arc of 8-
Line, the second camber line of 9-.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the application.
Referring to attached drawing 1-3, present embodiment provides a kind of four-point contact ball, including bearing body, bearing
Ontology includes inner ring 3, outer ring 1 and at least one centre circle 2, and centre circle 2 is between inner ring 3 and outer ring 1, adjacent outer ring two-by-two
1, it is provided with spin 4 between centre circle 2 and inner ring 3, in this way to form bearing body, realizes carrying gravity and transmits the work of power
With.
Multiple Internal and external cycles 1 connect together rotation, can be that inner ring 3 is fixed, and centre circle 2 and outer ring 1 rotate, and are also possible to outer ring
1 and inner ring 3 it is fixed, centre circle 2 rotates, and is also possible to outer ring 1 and centre circle 2 is fixed, and inner ring 3 rotates, in this way, the width of bearing is low,
Outer diameter is big, so that the multi-faceted rotation of bearing is fully realized, instead of the impossible work requirements of bearing.
In the present embodiment, as shown in Figure 1, offering on the inner peripheral surface of outer ring 1 and two on the inner peripheral surface of centre circle 2
First raceway 6, offers two the second raceways 7 on the outer circumference surface of inner ring 3 and on the outer circumference surface of centre circle 2, and two first
Raceway 6 and two the second raceways 7 are parallel, and the first raceway 6 and the second raceway 7 are oppositely arranged, and spin 4 is arranged in adjacent
And between the first raceway 6 and the second raceway 7 being oppositely arranged, i.e., between outer ring 1 and centre circle 2, two-by-two adjacent centre circle 2 it
Between, between centre circle 2 and inner ring 3 be provided with spin 4.In this way, spin 4 can roll between the first raceway 6 and the second raceway 7
It moves, sufficiently solves the problems, such as that revolving speed is low, biserial spin 4 is set, increase the bearing capacity of bearing and improve bearing and is stable
Property, and multiple Internal and external cycles 1 are linked togather rotation, can sufficiently realize multi-faceted rotation.
In order to solve the problems, such as spin 4 in, first raceway 6 big with radial load suffered by the contact point of inner ring 3 or outer ring 1
Section on include the first camber line 8 and the second camber line 9, the radius of curvature of the first camber line 8 and the second camber line 9 is all larger than spin 4
Radius, so that spin 4 realizes that a point contact, i.e. spin 4 and the first raceway 6 have two with the first camber line 8 and the second camber line 9 respectively
Point contact；It include third camber line and the 4th camber line on the section of second raceway 7, the radius of curvature of third camber line and the 4th camber line is equal
Greater than the radius of spin 4, so that spin 4 realizes a point contact, i.e. spin 4 and second with third camber line and the 4th camber line respectively
Raceway 7 has two-point contact, in this way, all each being in rolling contact there are two point and each spin 4 of every first raceway 6, the second raceway 7
Face is in contact, and hence for each spin 4, there are four contact point, spin 4 and outer rings 1 and inner ring 3 to realize four point contacts altogether, prevents
It only jumps between inner ring 3 and outer ring 1, makes the bearing that can bear radial load and bear axial load, improve axis
The receiving load held increases the practicability of the bearing, has given full play to the multi-faceted stress of bearing.
It should be noted that Plane Curved curvature of a curve turns arc length aiming at some tangent directional angle put on curve
Dynamic rate, for curve, it is equal to the radius closest to the circular arc of curve at this point.
Wherein, in the present embodiment, the radius of curvature of the first camber line 8 and the second camber line 9 is all larger than the radius of spin 4, so that
First camber line 8 and the second camber line 9 can be contacted with spin 4, i.e., the first camber line 8 is connected with the second camber line 9 can form brother
Special formula Gothic arch, and the first camber line 8 is equal with the radius of curvature of the second camber line 9 and the radius of both greater than spin 4, the first camber line
8 is corresponding relative to the center line of the first raceway 6 with the second camber line 9, in this way, further ensure that spin 4 and the first camber line 8
It is identical with load radial and axial suffered by the contact point of the second camber line 9, improve the service life of bearing.
Similarly, the radius of curvature of third camber line and the 4th camber line is all larger than the radius of spin 4, so that third camber line and the 4th
Camber line can be contacted with spin 4, i.e., third camber line and the 4th camber line, which are connected, can form Gothic vault shape, and third
Camber line is equal with the radius of curvature of the 4th camber line and the radius of both greater than spin 4, and third camber line and the 4th camber line are relative to second
The center line of raceway 7 is corresponding, in this way, further ensure that suffered by the contact point of spin 4 and third camber line and the 4th camber line
Radial and axial load it is identical, improve the service life of bearing.
Wherein, centre circle 2 can be set multiple, such as 2,5,8 or more, i.e., spin 4 can be set 6
Column or multiple row specifically can change the diameter of internal ball 4 according to the demand of client to determine, meet client's need to facilitate
The carrying wanted and revolving speed, instead of the impossible work requirements of bearing.Centre circle 2 also can be set one, such as Fig. 1 institute
Show, in the present embodiment, it is that embodiment is described in detail that the quantity with centre circle 2, which is one,.
As shown in Figure 1, inner ring 3, centre circle 2 and outer ring 1 are successively arranged, i.e. 2 sets of the centre circle outsides in inner ring 3,1 set of outer ring exists
The outside of centre circle 2, and inner ring 3, centre circle 2 are identical with the center of circle of outer ring 1, the second rolling of the first raceway 6 and centre circle 2 of outer ring 1
Road 7 is oppositely arranged, and the second raceway 7 of inner ring 3 and the first raceway 6 of centre circle 2 are oppositely arranged, and spin 4 is provided with the first raceway 6
And second between raceway 7, it can four column spin 4 are provided with, to be convenient to the operating of different directions.
In the present embodiment, bearing body further includes multiple retainers 5, and multiple retainers 5 are separately positioned on inner ring 3, multiple
Between centre circle 2 and outer ring 1, and spin 4 is arranged in the pocket hole of retainer 5, retainer 5 can by 4 portion envelops of spin,
And two adjacent spin 4 is made to keep certain spacing, it will not collide, to increase the rigidity of the ball bearing.
Wherein, the material of retainer 5 can be material used in the retainer 5 of bearing in the prior art, because in axis
When holding work, since sliding friction will cause bearing heating and abrasion, so the material of retainer 5, which is typically chosen, to be had centainly
Intensity, will also there is that good thermal conductivity, coefficient of friction be small, the characteristics such as wear-resisting；Can specifically select mild steel, bakelite, bronze or
The materials such as person's brass can also select other materials according to the demand of user.
In the present embodiment, the quantity of retainer 5 is identical as the columns of spin 4, when bearing body includes a centre circle 2
When, the quantity of retainer 5 is four, i.e. spin 4 is provided with four column, four retainers 5 be separately positioned on outer ring 1 and centre circle 2 it
Between, between centre circle 2 and inner ring 3.Two retainers 5 are respectively corresponded, two parallel the first raceways 6 and the second raceway are set
Between 7, other two retainer 5, which respectively corresponds, to be arranged between two other parallel the first raceway 6 and the second raceway 7, is protected
Holding frame 5 can be by 4 portion envelops of spin, and two adjacent spin 4 is made to keep certain spacing, will not collide, thus
Increase the rigidity of the ball bearing.
Offer lubrication groove on the first raceway 6, and lubrication groove be located at spin 4 respectively with the first camber line 8 and the second camber line 9
Contact point between；In ball bearing operating, spin 4 rotates between the first raceway 6 and the second raceway 7, and lubrication groove can be with
The effect for increasing lubrication for the ball bearing operates the ball bearing more smooth, and the lubricating oil in lubrication groove can also rise
To the function of cooling and slagging-off, to increase the service life of the ball bearing.
The ball bearing further includes multiple sealing rings, and the quantity of sealing ring is identical as the quantity of retainer 5, and sealing ring setting exists
The both ends of the ball bearing；Sealing ring can effectively prevent extraneous miscellaneous dirt from entering in the first raceway 6 and the second raceway 7, shadow
The operating of bearing is rung, moreover, sealing ring can also make the first raceway 6 and lubricating oil in the second raceway 7 or lubricating grease will not
Outflow, to keep the lubricant effect of the ball bearing.
It further include oil filler point on the sealing ring；When using the ball bearing, due to multiple sealing rings, the first raceway 6 and the
Two raceways 7 composition one includes the confined space of spin 4, and in order to keep the lubricant effect of the ball bearing more preferable, it is often right to need
The ball bearing is maintained, so being provided with oil filler point on sealing ring, can be added with by oil filler point into confined space
Lubricating oil or lubricating grease enable the ball bearing preferably to run.
Wherein, check valve is provided at the aperture of oil filler point；The check valve makes lubricating oil or profit in confined space
Consistent lubricant will not be flowed out by check valve to outside, lubricating oil be added or when lubricating grease, can be by check valve to confined air
Interior addition.
Sealing ring is provided with circlip away from the side of confined space；Sealing ring can be fastened on the two of ball bearing by circlip
End, when needing to maintain the ball bearing, it is only necessary to remove circlip, so that it may open sealing ring, and to ball bearing
Inside maintained, after the completion of maintenance, sealing ring can be covered on ball bearing, and set sealing ring card by circlip
In the two sides of ball bearing, to increase the service life of the ball bearing.
Optimally, the inner ring 3 in the ball bearing, centre circle 2, outer ring 1 and spin 4 are that 15 bearing steel of GCr is made；Its
In, GCr15 bearing steel refers to a kind of high-carbon-chromium bearing steel that alloy content is less.
In addition, the inner ring 3, centre circle 2, outer ring 1 and spin 4 in the ball bearing have it is also an option that other materials are made
Body, material can be selected according to the demand of user or the operating condition of ball bearing.
It should be noted that the words such as " first " " second " " third " " 4th " for being stated herein, are not to specific suitable
The limitation of sequence is only only intended to distinguish all parts or function.
It is understood that same or similar part can mutually refer in the various embodiments described above, in some embodiments
Unspecified content may refer to the same or similar content in other embodiments.
Although embodiments herein has been shown and described above, it is to be understood that above-described embodiment is example
Property, it should not be understood as the limitation to the application, those skilled in the art within the scope of application can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of four-point contact ball, which is characterized in that including bearing body, the bearing body includes inner ring (3), outer
Circle (1) and at least one be located at the centre circle (2) in the inner ring (3) and the outer ring (1), two-by-two the adjacent outer ring (1),
Multiple spin (4) are provided between the centre circle (2) and the inner ring (3).
2. four-point contact ball according to claim 1, which is characterized in that on the inner peripheral surface of the outer ring (1) and
Two parallel the first raceways (6) are offered on the inner peripheral surface of the centre circle (2), on the outer circumference surface of the inner ring (3)
Second raceway (7) parallel with offering two on the outer circumference surface of the centre circle (2), first raceway (6) and described
Second raceway (7) is oppositely arranged, and first raceway (6) that is adjacent, being oppositely arranged and described is arranged in the spin (4)
Between two raceways (7).
3. four-point contact ball according to claim 2, which is characterized in that wrapped on the section of first raceway (6)
Include the first camber line (8) and the second camber line (9), the radius of curvature of first camber line (8) and second camber line (9) is all larger than institute
The radius of spin (4) is stated, the spin (4) contacts with first camber line (8) and second camber line (9) respectively, and described
It include third camber line and the 4th camber line, the radius of curvature of the third camber line and the 4th camber line on the section of two raceways (7)
It is all larger than the radius of the spin (4), the spin (4) contacts with the third camber line and the 4th camber line respectively.
4. four-point contact ball according to claim 1, which is characterized in that the bearing body further includes multiple holdings
Frame (5), multiple retainers (5) be separately positioned on the outer ring (1), multiple centre circles (2) and the inner ring (3) it
Between, the spin (4) is arranged in the pocket hole of the retainer (5).
5. four-point contact ball according to claim 4, which is characterized in that the bearing body includes a centre circle
(2), the quantity of the retainer (5) is 4, and 4 retainers (5) are separately positioned on the outer ring (1) and the centre circle
(2) between the centre circle (2) and the inner ring (3).
6. four-point contact ball according to claim 3, which is characterized in that first raceway (6) offers lubrication
Slot, the lubrication groove be located at the spin (4) respectively with the contact point of first camber line (8) and second camber line (9) it
Between.
7. four-point contact ball according to claim 2, which is characterized in that further include multiple sealing rings, the sealing
The both ends of the bearing body are arranged in, the spin (4) is enclosed in first raceway (6) and second raceway in circle
(7) in.
8. four-point contact ball according to claim 7, which is characterized in that the quantity of the sealing ring and described first
The quantity of raceway (6) or second raceway (7) is identical.
9. four-point contact ball according to claim 7, which is characterized in that be provided with card on the outside of the sealing ring
The both ends of the bearing body are arranged in by the circlip for spring, the sealing ring.
10. four-point contact ball according to claim 7, which is characterized in that it is provided with oil filler point on the sealing ring,
Check valve is provided at the oil filler point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920044496.0U CN209414391U (en) | 2019-01-10 | 2019-01-10 | A kind of four-point contact ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920044496.0U CN209414391U (en) | 2019-01-10 | 2019-01-10 | A kind of four-point contact ball |
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| Publication Number | Publication Date |
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| CN209414391U true CN209414391U (en) | 2019-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920044496.0U Active CN209414391U (en) | 2019-01-10 | 2019-01-10 | A kind of four-point contact ball |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519470A (en) * | 2019-01-10 | 2019-03-26 | 临清市海瑞轴承制造有限公司 | A kind of four-point contact ball |
-
2019
- 2019-01-10 CN CN201920044496.0U patent/CN209414391U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519470A (en) * | 2019-01-10 | 2019-03-26 | 临清市海瑞轴承制造有限公司 | A kind of four-point contact ball |
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