CN215762791U - Double-row ball type slewing bearing - Google Patents
Double-row ball type slewing bearing Download PDFInfo
- Publication number
- CN215762791U CN215762791U CN202120961659.9U CN202120961659U CN215762791U CN 215762791 U CN215762791 U CN 215762791U CN 202120961659 U CN202120961659 U CN 202120961659U CN 215762791 U CN215762791 U CN 215762791U
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- ring
- arc
- slewing bearing
- rolling
- shaped grooves
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Abstract
The utility model discloses a double-row ball type slewing bearing which comprises an outer ring and inner rings, wherein the inner rings are provided with two groups and symmetrically distributed at the upper part and the lower part of the inner side of the outer ring, and a support ring is arranged between the two groups of inner rings; according to the utility model, the outer ring and the support ring are firstly installed, then the rolling ball and the inner ring are installed, and the rolling ring is formed by the first arc-shaped groove, the second arc-shaped groove and the third arc-shaped groove, so that the slewing bearing is more convenient and efficient to install, the whole installation process of the rolling ball is visible, the problem of installation errors is avoided, oil injection holes are arranged on two sides of one end, close to the outer part of the outer ring, of the annular oil storage groove, and the annular oil storage groove is communicated with the rolling ring through the oil leakage holes, so that lubricating oil can quickly and uniformly flow into the rolling ring and lubricate the rolling ball after being injected into the annular oil storage groove through the oil injection holes, the use is convenient, and the practicability is higher.
Description
Technical Field
The utility model relates to the technical field of slewing bearings, in particular to a double-row ball type slewing bearing.
Background
The slewing bearing is a novel mechanical part, which is composed of an inner ring, an outer ring, a rolling body and the like, the slewing bearing is a large bearing capable of bearing comprehensive load and can simultaneously bear larger axial load, radial load and overturning moment, the slewing bearing is widely applied in the actual industry, is an important transmission part necessary for machinery which needs to do relative slewing motion between two objects and simultaneously bear axial force, radial force and overturning moment, and the slewing bearing is widely applied in the industries of ship equipment, engineering machinery, light-duty machinery, metallurgical machinery, medical machinery, industrial machinery and the like along with the rapid development of the mechanical industry;
the slewing bearing has a plurality of types, including a single-row four-point contact ball type slewing bearing, a double-row reducing ball type slewing bearing, a single-row cross roller type slewing bearing, a three-row roller type slewing bearing and the like, the existing slewing bearing has a single structure, when the rolling balls are installed, the rolling balls are required to be plugged into the inner ring and the outer ring one by one, time and labor are wasted, errors are easy to occur, and the existing slewing bearing cannot enable lubricating oil to be rapidly and uniformly distributed on the rolling balls after the lubricating oil is injected, and the double-row ball type slewing bearing is convenient to use.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model aims to provide a double-row ball type slewing bearing, the double-row ball type slewing bearing is provided with an outer ring and a support ring firstly, and then a rolling ball and an inner ring are arranged, so that the slewing bearing is more convenient and efficient to install, the whole installation process of the rolling ball is visible, the problem of installation errors is avoided, oil filling holes are continuously arranged on two sides of one end, close to the outer part of the outer ring, of an annular oil storage groove, and the annular oil storage groove is communicated with the rolling ring through oil leakage holes, so that lubricating oil can quickly and uniformly flow into the rolling ring after being injected into the annular oil storage groove through the oil filling holes and lubricate the rolling ball.
In order to achieve the purpose of the utility model, the utility model is realized by the following technical scheme: the utility model provides a double ball formula slewing bearing, includes outer lane and inner circle, the inner circle is equipped with two sets ofly and symmetric distribution in the inboard upper portion of outer lane and lower part, and is two sets of be equipped with the lock ring between the inner circle, the first arc recess that is symmetric distribution is seted up along circumference to the inner wall of outer lane, the second arc recess that matches with first arc recess is seted up along circumference to the outer wall of inner circle, the third arc recess that matches with first arc recess and second arc recess is seted up along circumference symmetry to the outer wall of lock ring, first arc recess, second arc recess and third arc recess constitute the roll circle jointly, evenly distributed has the roll circle in the roll circle, inner circle and lock bolt connection are passed through to lock ring and lock ring, the inside symmetry of spin is equipped with annular oil storage tank, evenly distributed has the outer ring tooth on the outer wall of outer lane.
The further improvement lies in that: both sides of the annular oil storage tank close to one end of the outer part of the outer ring are communicated with oil injection holes, and the annular oil storage tank is communicated with the rolling ring through oil leakage holes.
The further improvement lies in that: the cross-sectional diameter of the oil leakage hole is one half of that of the oil filling hole, the number of the oil leakage holes is four times that of the oil filling hole, and a sealing plug is arranged on the oil filling hole in an interference fit mode.
The further improvement lies in that: the rolling balls are steel balls, the adjacent rolling balls are provided with isolating blocks, the four corners of each isolating block are designed in an arc shape, and ball grooves matched with the rolling balls are formed in the two sides of each isolating block.
The further improvement lies in that: annular limiting bulges are arranged at the upper end and the lower end of the support ring, and limiting grooves matched with the limiting bulges are formed in one side, close to the support ring, of the inner ring.
The further improvement lies in that: and the joints of the upper end and the lower end of the outer ring and the inner ring are both provided with first sealing belts, and the joints of the upper end and the lower end of the support ring and the inner ring are both provided with second sealing belts.
The utility model has the beneficial effects that: the rotary bearing comprises an outer ring, the outer ring and a support ring are installed firstly, then the rolling ball and the inner ring are installed, the rolling ring is formed by the first arc-shaped groove, the second arc-shaped groove and the third arc-shaped groove, so that the rotary bearing is convenient and efficient to install, the whole installation process of the rolling ball is visible, the problem of installation errors is avoided, oil injection holes are arranged on two sides of one end, close to the outer part of the outer ring, of the annular oil storage groove in a connecting mode, the annular oil storage groove is communicated with the rolling ring through the oil leakage holes, lubricating oil can rapidly and uniformly flow into the rolling ring after being injected into the annular oil storage groove through the oil injection holes and lubricate the rolling ball, the use is convenient, and the practicability is high.
Drawings
FIG. 1 is a top view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a front view of the spacer block of the present invention;
FIG. 4 is a side cross-sectional view of a spacer of the present invention;
fig. 5 is an enlarged view of the utility model at a.
Wherein: 1. an outer ring; 2. an inner ring; 3. a support ring; 4. a first arc-shaped groove; 5. a second arc-shaped groove; 6. a third arc-shaped groove; 7. a rolling ring; 8. rolling a ball; 9. locking the bolt; 10. an annular oil storage tank; 11. outer ring teeth; 12. an oil filler hole; 13. an oil leak hole; 14. a sealing plug; 15. an isolation block; 16. a ball groove; 17. a limiting bulge; 18. a limiting groove; 19. a first sealing tape; 20. a second sealing tape; 21. a first mounting hole; 22. a second mounting hole; 23. a middle hole.
Detailed Description
In order to further understand the present invention, the following detailed description will be made with reference to the following examples, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
Example one
According to the figures 1, 2, 3, 4 and 5, the embodiment provides a double-row ball type slewing bearing, which comprises an outer ring 1 and an inner ring 2, wherein the inner ring 2 is provided with two groups which are symmetrically distributed at the upper part and the lower part of the inner side of the outer ring 1, a support ring 3 is arranged between the two groups of inner rings 2, the inner wall of the outer ring 1 is circumferentially provided with first arc-shaped grooves 4 which are symmetrically distributed, the outer wall of the inner ring 2 is circumferentially provided with second arc-shaped grooves 5 which are matched with the first arc-shaped grooves 4, the outer wall of the support ring 3 is circumferentially symmetrically provided with third arc-shaped grooves 6 which are matched with the first arc-shaped grooves 4 and the second arc-shaped grooves 5, the first arc-shaped grooves 4, the second arc-shaped grooves 5 and the third arc-shaped grooves 6 jointly form a rolling ring 7, rolling balls 8 are uniformly distributed in the rolling ring 7, and the inner ring 2 is connected with the support ring 3 through locking bolts 9, through installing outer lane 1 and lock ring 3 earlier, install spin 8 and inner circle 2 again to constitute roll ring 7 jointly through first arc recess 4, second arc recess 5 and third arc recess 6, thereby make this slewing bearing installation more convenient high-efficient, and the whole journey is visual in spin installation process, has avoided the problem that the installation was makeed mistakes, 1 inside symmetry in outer lane is equipped with annular oil storage tank 10, evenly distributed has outer lane tooth 11 on the outer wall of outer lane 1, and the transmission of being convenient for is connected.
Both sides that annular oil storage tank 10 is close to the outside one end of outer lane 1 all communicate with oil filler point 12, annular oil storage tank 10 is through oil leak hole 13 and rolling circle 7 intercommunication, is convenient for pour into lubricating oil into rolling circle 7 into.
The diameter of the section of the oil leakage hole 13 is one half of the diameter of the section of the oil filling hole 12, the number of the oil leakage holes 13 is four times that of the oil filling hole 12, and the sealing plug 14 is installed on the oil filling hole 12 in an interference fit mode, so that lubricating oil can flow into the rolling ring 7 quickly and uniformly and lubricate the rolling ball 8 conveniently.
The rolling ball 8 is a steel ball, the adjacent rolling balls 8 are provided with isolating blocks 15, the four corners of each isolating block 15 are designed in an arc shape, and ball grooves 16 matched with the rolling balls 8 are formed in the two sides of each isolating block 15, so that the rolling balls 8 can roll conveniently.
The joint of the upper end and the lower end of the outer ring 1 and the inner ring 2 is provided with a first sealing strip 19, so that the sealing between the outer ring 1 and the inner ring 2 is facilitated, and the joint of the upper end and the lower end of the support ring 3 and the inner ring 2 is provided with a second sealing strip 20, so that the sealing between the support ring 3 and the inner ring 2 is facilitated.
The outer ring 1 is provided with twelve groups of first mounting holes 21, the first mounting holes 21 are uniformly distributed on the outer ring 1 in an annular shape, and the slewing bearing can be conveniently mounted on equipment.
The inner ring 2 is provided with eight groups of second mounting holes 22, the second mounting holes 22 are uniformly distributed on the inner ring 2 in an annular shape, and the support ring 3 is provided with a middle hole 23 communicated with the second mounting holes 22 in a matching manner, so that the slewing bearing can be conveniently mounted on equipment.
When the slewing bearing needs to be assembled, the support ring 3 is placed at the middle position of the inner side of the outer ring 1, then the rolling balls 8 and the isolation blocks 15 are uniformly plugged into the first arc-shaped groove 4 and the third arc-shaped groove 6 which are positioned above the support ring, the inner ring 2 is installed at the top end of the support ring 3 and is fixed through the locking bolts 9, the second arc-shaped groove 5 is used for sealing the rolling balls 8 and the isolation blocks 15, then the outer ring 1 is inverted, the rolling balls 8 and the isolation blocks 15 and the inner ring 2 on the other side of the support ring 3 are installed in the above steps, when lubricating oil needs to be injected into the rolling ring 7, the sealing plug 14 is firstly pulled out, then the lubricating oil is injected into the annular oil storage groove 10 through the oil injection hole 13 and uniformly flows into the rolling ring 7 through the oil injection hole 12 and lubricates the rolling balls 8.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a double ball formula slewing bearing, includes outer lane (1) and inner circle (2), its characterized in that: the inner ring (2) is provided with two groups of upper parts and lower parts which are symmetrically distributed on the inner side of the outer ring (1), a support ring (3) is arranged between the two groups of inner rings (2), the inner wall of the outer ring (1) is provided with first arc-shaped grooves (4) which are symmetrically distributed along the circumferential direction, the outer wall of the inner ring (2) is provided with second arc-shaped grooves (5) which are matched with the first arc-shaped grooves (4) along the circumferential direction, the outer wall of the support ring (3) is provided with third arc-shaped grooves (6) which are matched with the first arc-shaped grooves (4) and the second arc-shaped grooves (5) along the circumferential direction, the first arc-shaped grooves (4), the second arc-shaped grooves (5) and the third arc-shaped grooves (6) jointly form a rolling ring (7), rolling balls (8) are uniformly distributed in the rolling ring (7), and the inner ring (2) and the support ring (3) are connected through locking bolts (9), the inner part of the outer ring (1) is symmetrically provided with annular oil storage tanks (10), and the outer wall of the outer ring (1) is uniformly distributed with outer ring teeth (11).
2. The double row ball slewing bearing of claim 1, wherein: both sides that annular oil storage tank (10) are close to the outside one end of outer lane (1) all communicate there are oil filler point (12), annular oil storage tank (10) are through oil leak hole (13) and rolling circle (7) intercommunication.
3. The double row ball slewing bearing of claim 2, wherein: the section diameter of the oil leakage hole (13) is one half of the section diameter of the oil filling hole (12), the number of the oil leakage holes (13) is four times that of the oil filling hole (12), and a sealing plug (14) is installed on the oil filling hole (12) in an interference mode.
4. The double row ball slewing bearing of claim 1, wherein: spin (8) are the steel ball, and are adjacent be equipped with between spin (8) spacing block (15), the four corners position of spacing block (15) is the circular arc design, ball groove (16) that match with spin (8) are all seted up to spacing block (15) both sides.
5. The double row ball slewing bearing of claim 1, wherein: both ends all are equipped with annular spacing arch (17) about lock ring (3), inner circle (2) are close to one side of lock ring (3) and all offer spacing recess (18) with spacing arch (17) matching.
6. The double row ball slewing bearing of claim 1, wherein: the sealing structure is characterized in that first sealing strips (19) are arranged at the joints of the upper end and the lower end of the outer ring (1) and the inner ring (2), and second sealing strips (20) are arranged at the joints of the upper end and the lower end of the support ring (3) and the inner ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120961659.9U CN215762791U (en) | 2021-05-07 | 2021-05-07 | Double-row ball type slewing bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120961659.9U CN215762791U (en) | 2021-05-07 | 2021-05-07 | Double-row ball type slewing bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215762791U true CN215762791U (en) | 2022-02-08 |
Family
ID=80096672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120961659.9U Expired - Fee Related CN215762791U (en) | 2021-05-07 | 2021-05-07 | Double-row ball type slewing bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215762791U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114962458A (en) * | 2022-05-16 | 2022-08-30 | 马鞍山经纬回转支承有限公司 | Special slim slewing bearing of AGV |
| CN114992247A (en) * | 2022-05-13 | 2022-09-02 | 马鞍山经纬回转支承有限公司 | Slewing bearing for environmental protection equipment |
-
2021
- 2021-05-07 CN CN202120961659.9U patent/CN215762791U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114992247A (en) * | 2022-05-13 | 2022-09-02 | 马鞍山经纬回转支承有限公司 | Slewing bearing for environmental protection equipment |
| CN114992247B (en) * | 2022-05-13 | 2024-02-09 | 马鞍山经纬回转支承股份有限公司 | Slewing bearing for environmental protection equipment |
| CN114962458A (en) * | 2022-05-16 | 2022-08-30 | 马鞍山经纬回转支承有限公司 | Special slim slewing bearing of AGV |
| CN114962458B (en) * | 2022-05-16 | 2024-01-23 | 马鞍山经纬回转支承股份有限公司 | Thin slewing bearing special for AGV |
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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: 20220208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |