CN205371296U - Outer tooth -like double reducing ball formula slewing bearing - Google Patents
Outer tooth -like double reducing ball formula slewing bearing Download PDFInfo
- Publication number
- CN205371296U CN205371296U CN201521125951.8U CN201521125951U CN205371296U CN 205371296 U CN205371296 U CN 205371296U CN 201521125951 U CN201521125951 U CN 201521125951U CN 205371296 U CN205371296 U CN 205371296U
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- CN
- China
- Prior art keywords
- rolling element
- inner ring
- contact surface
- external toothing
- wall
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- Expired - Fee Related
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Abstract
The utility model provides an outer tooth -like double reducing ball formula slewing bearing, including first inner circle, second inner circle, outer ring gear to and two volleyballs that set up between three shape rolling element, first inner circle is fixed in second inner circle top through the conical dowel pin, first inner circle outer wall lower part with set up between the outer ring gear inner wall upper portion first rolling element, outer ring gear inner wall lower part with second inner circle outer wall sets up between the upper portion the second rolling element. The utility model discloses optimize the rolling element raceway, make slewing bearing can bear great axial force and tumble moment, the utility model discloses a reduce the area of contact of raceway and rolling element, reduce the friction of rolling element and raceway, improve slewing bearing's bearing capacity and life, the utility model discloses compact structure, bearing capacity is big, and is rotatory nimble. To using extensively than rugged environment.
Description
Technical field
The present invention relates to ball-type slewing bearing, relate generally to a kind of external tooth type double row reducing ball pivoting support being applied to the high-efficiency appliance that large bulk materials such as stacker-reclaimer load and unload continuously.
Background technology
Pivoting support is a kind of large size bearing that can bear combined load, it is possible to bear bigger axial, radial load and tilting moment simultaneously.Pivoting support is applied very extensive in reality industry, is called by people: " joint of machine ", is need between two articles to do relative gyration, needs again to bear the necessary important drive disk assembly of machinery of axial force, radial force, tilting moment simultaneously.Along with developing rapidly of machinery industry, pivoting support is widely used in industries such as ship equipment, engineering machinery, light industry and machinery, metallurgical machinery, medical machinery, industrial machineries.
Double ball-type slewing bearing has three seat rings, steel ball and spacing block can be directly discharged into upper and lower raceway, according to force-bearing situation, is scheduled that the steel ball that two rows diameter is different.The assembling of this open type is very convenient, and the carrying angle of upper and lower arc raceway is all 90 °, can bear bigger axial force and tilting moment.When the radial force axial force more than 0.1 times, raceway must particular design.
Summary of the invention
It is an object of the invention to optimize rolling element raceway, make pivoting support can bear bigger axial force and tilting moment；Meanwhile, reduce in existing pivoting support rolling element when rotated, and the friction produced between raceway, improve bearing capacity and the service life of pivoting support to greatest extent.
For reaching above-mentioned purpose, the invention provides a kind of double row reducing ball pivoting support: include the first inner ring, the second inner ring, external toothing and the two row's spherical rolling bodies arranged between three；
Described first inner ring is fixed on above the second inner ring by conical dowel pin；
In described first, between ring outer wall bottom and described external toothing upper inside wall, the first rolling element is set；
Described first inner ring and described first rolling element contact surface are arc-shaped surface, and described contact surface lower extreme point extended line is tangent with described first rolling element outer surface, light along described contact surface lower end to described first inner ring bottom surface fluting；
Described external toothing and described first rolling element contact surface are arc-shaped surface, and described contact surface upper extreme point extended line is tangent with described first rolling element outer surface, light along described contact surface upper end and slot to described external toothing end face；
In described external toothing inner wall lower and described second, between ring outer wall top, the second rolling element is set；
Described first inner ring upper outer edges is provided with the first sealing ring, and described external toothing top is equipped with the second sealing ring, and described first sealing ring forms Double seal ring with described second sealing ring；
The some vertical teeth groove of outer wall circumference uniform distribution of described external toothing.
Under optimal way, described second inner ring and described second rolling element contact surface are arc-shaped surface, and described contact surface upper extreme point extended line is tangent with described second rolling element outer surface, light along described contact surface upper end to described second inner ring upper surface fluting.
Under optimal way, described two row's spherical rolling bodies are steel ball.
Under optimal way, described teeth groove is positioned at the middle and upper part of described external toothing outer wall.
Present invention have an advantage that
1, the present invention optimizes rolling element raceway, makes pivoting support can bear bigger axial force and tilting moment；
2, the present invention is by reducing the contact area of raceway and rolling element, reduces the friction of rolling element and raceway, improves bearing capacity and the service life of pivoting support；
3, the present invention adopts cone alignment pin to fasten the first inner ring and the second inner ring, adopting taper bolt location, improving the first inner ring and the second inner ring positioning precision to greatest extent, thus improving the running accuracy of pivoting support.
Present configuration is compact, and bearing capacity is big, flexible rotation, can be applicable to steel plant's fortune and takes the high-efficiency appliance that large bulk material such as stacker-reclaimer of material loads and unloads continuously；Relatively rugged environment is widely used.
Accompanying drawing explanation
Fig. 1 is the structural representation of external tooth type double row reducing ball pivoting support of the present invention.
In figure, 1 is the first inner ring, and 2 is conical dowel pin, and 3 is the first rolling element, and 4 is the first sealing ring, and 5 is the second sealing ring, and 6 is external toothing, and 7 is the second inner ring, and 8 is the second rolling element.
Detailed description of the invention
Fig. 1 is the structural representation of external tooth type double row reducing ball pivoting support of the present invention.
As it is shown in figure 1, the present invention includes first inner ring the 1, second inner ring 7, external toothing 6 and the two row's spherical rolling bodies arranged between three；Described first inner ring 1 is fixed on above the second inner ring 7 by conical dowel pin 2；Described first rolling element 3 is set between described first inner ring 1 outer wall bottom and described external toothing 6 upper inside wall；Described first inner ring 1 is arc-shaped surface with described first rolling element 3 contact surface, and described contact surface lower extreme point extended line is tangent with described first rolling element 3 outer surface, lights along described contact surface lower end to described first inner ring 1 bottom surface fluting；Described external toothing 6 is arc-shaped surface with described first rolling element 3 contact surface, and described contact surface upper extreme point extended line is tangent with described first rolling element 3 outer surface, lights along described contact surface upper end and slots to described external toothing 6 end face；Between described external toothing 6 inner wall lower and described second inner ring 7 outer wall top, described second rolling element 8 is set；Described second inner ring 7 is arc-shaped surface with described second rolling element 8 contact surface, and described contact surface upper extreme point extended line is tangent with described second rolling element 8 outer surface, lights along described contact surface upper end to described second inner ring 7 upper surface fluting.Described first inner ring 1 upper outer edges is provided with the first sealing ring 4, and described external toothing 6 top is equipped with the second sealing ring 5, and described first sealing ring 4 forms Double seal ring with described second sealing ring 5；The some vertical teeth groove of outer wall middle and upper part circumference uniform distribution of described external toothing 6.
The above; it is only the present invention preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; any those familiar with the art is in the technical scope of present disclosure; it is equal to replacement according to technical scheme and inventive concept thereof or is changed, all should be encompassed within protection scope of the present invention.
Claims (4)
1. an external tooth type double row reducing ball pivoting support, it is characterised in that include the first inner ring (1), the second inner ring (7), external toothing (6) and the two row's spherical rolling bodies arranged between three；
Described first inner ring (1) is fixed on the second inner ring (7) top by conical dowel pin (2)；
First rolling element (3) is set between described first inner ring (1) outer wall bottom and described external toothing (6) upper inside wall；
Described first inner ring (1) and described first rolling element (3) contact surface are arc-shaped surface, described contact surface lower extreme point extended line is tangent with described first rolling element (3) outer surface, lights along described contact surface lower end and slots to described first inner ring (1) bottom surface；
Described external toothing (6) and described first rolling element (3) contact surface are arc-shaped surface, described contact surface upper extreme point extended line is tangent with described first rolling element (3) outer surface, lights along described contact surface upper end and slots to described external toothing (6) end face；
Second rolling element (8) is set between described external toothing (6) inner wall lower and described second inner ring (7) outer wall top；
Described first inner ring (1) upper outer edges is provided with the first sealing ring (4), described external toothing (6) top is equipped with the second sealing ring (5), and described first sealing ring (4) forms Double seal ring with described second sealing ring (5)；
The some vertical teeth groove of outer wall circumference uniform distribution of described external toothing (6).
2. external tooth type double row reducing ball pivoting support according to claim 1, it is characterized in that, described second inner ring (7) and described second rolling element (8) contact surface are arc-shaped surface, described contact surface upper extreme point extended line is tangent with described second rolling element (8) outer surface, lights along described contact surface upper end and slots to described second inner ring (7) upper surface.
3. external tooth type double row reducing ball pivoting support according to claim 1, it is characterised in that described two row's spherical rolling bodies are steel ball.
4. external tooth type double row reducing ball pivoting support according to claim 1, it is characterised in that described teeth groove is positioned at the middle and upper part of described external toothing (6) outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521125951.8U CN205371296U (en) | 2015-12-29 | 2015-12-29 | Outer tooth -like double reducing ball formula slewing bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521125951.8U CN205371296U (en) | 2015-12-29 | 2015-12-29 | Outer tooth -like double reducing ball formula slewing bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205371296U true CN205371296U (en) | 2016-07-06 |
Family
ID=56258021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521125951.8U Expired - Fee Related CN205371296U (en) | 2015-12-29 | 2015-12-29 | Outer tooth -like double reducing ball formula slewing bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205371296U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183463A (en) * | 2021-12-10 | 2022-03-15 | 江苏万达特种轴承有限公司 | Split type slewing bearing of double reducing outer lane |
-
2015
- 2015-12-29 CN CN201521125951.8U patent/CN205371296U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183463A (en) * | 2021-12-10 | 2022-03-15 | 江苏万达特种轴承有限公司 | Split type slewing bearing of double reducing outer lane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20161229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |