CN202301439U - Reciprocating oscillating four-point contact ball slewing bearing - Google Patents
Reciprocating oscillating four-point contact ball slewing bearing Download PDFInfo
- Publication number
- CN202301439U CN202301439U CN2011204277710U CN201120427771U CN202301439U CN 202301439 U CN202301439 U CN 202301439U CN 2011204277710 U CN2011204277710 U CN 2011204277710U CN 201120427771 U CN201120427771 U CN 201120427771U CN 202301439 U CN202301439 U CN 202301439U
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- Prior art keywords
- arc section
- steel ball
- circular arc
- ring
- piece
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- Withdrawn - After Issue
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Abstract
The utility model relates to a reciprocating oscillating four-point contact ball slewing bearing. The slewing bearing mainly comprises an outer ring, an inner ring and a steel ball, wherein each of the outer ring and the inner ring is formed by connecting two parallel straight line sections and two circular arc sections; the two circular arc sections are respectively positioned at two ends of the two straight line sections and are connected with the two straight line sections; the joint between the two circular arc section and the two circular arc section is in smooth circular arc transition; the curvature of the inner-ring circular arc section is equal to that of the outer-ring circular arc section; the angle of the inner-ring circular arc section is smaller than that of the outer-ring circular arc section; peach-shaped raceways are processed on the inner-ring circular arc section and the outer-ring circular arc section; a steel ball bearing socket block, a spring, a stopper and a spring bearing load block are arranged in each raceway; and a steel ball is arranged on a circular arc section in the middle of the steel ball bearing socket blocks at the two ends of the raceway. The slewing bearing has the advantages of simple structure and novel conception, when a work system moves, the steel ball makes rotary motion within a limited angle, the stopper ensures a limited angle position of the motion of the steel ball; and the angle of the outer-ring circular arc section is greater than that of the inner-ring circular arc section, and the inner ring swings within a small angle range, so that motion interference can not be generated.
Description
Technical field
The utility model relates to a kind of turntable bearing, especially relates to a kind of reciprocally swinging formula four point touching ball slewing bearing.
Background technique
Four point touching ball slewing bearing is the special large-size pivoting support of a kind of structure, and its inner ring, outer ring raceway are made up of the circular arc that two sections centers do not overlap, and does the time spent when no-load or pure radial load, and steel ball is rendered as at 4 with lasso and contacts.Four point touching ball slewing bearing can bear combined loads such as thrust load, radial load, tilting moment; Four-point contact ball has only when forming 2 contacts could guarantee proper functioning; Therefore be widely used in being 2 occasions that contact under the big resultant load of pure thrust load on the huge revolving devices such as Hoisting Machinery, mining machinery, building machinery, harbour machinery, ship machinery and high-precision radar machinery and missile launcher or thrust load, and the occasion that runs up.The four point touching ball slewing bearing structure is special, and manufacturing procedure is various, and the inner ring in peach type cross section, outer ring raceway need grind by profiling and accomplish, and be with heavy work load, costly; Because the four point touching ball slewing bearing volume is big, quality is heavy, and the variation of processing occasion makes machining accuracy reduce on the one hand, and cost of production is increased.During four point touching ball slewing bearing work, generally do rotation motion.In some special occasions, four point touching ball slewing bearing only carries out simple oscillating motion, and pendulum angle is limited.Under the little situation of work loads, the load that each steel ball bore is very little.
The model utility content
The purpose of the utility model is to be the deficiency that solves the problems of the technologies described above, and a kind of simple in structure, reciprocally swinging formula four point touching ball slewing bearing of being easy to process is provided.
The utility model is the deficiency that solves the problems of the technologies described above; The technological scheme that is adopted is: a kind of reciprocally swinging formula four point touching ball slewing bearing; It mainly is made up of outer ring, inner ring and steel ball; Outer ring, inner ring connect to form by two parallel straightways and two arc sections, and two arc sections lay respectively at two straightway two ends and are attached thereto, and the joint is level and smooth arc transition; The curvature of outer ring arc section and inner ring arc section equates that inner ring arc section angle is less than outer ring arc section angle; On outer ring arc section and inner ring arc section, be processed with peach type raceway; In raceway, be provided with steel ball pod piece, spring, limiting stopper, spring and take up piece; Steel ball is being loaded on the raceway on the middle arc section of two ends steel ball pod piece; One end of spring is arranged on spring and takes up on the piece, and the other end is loaded on the steel ball pod piece, and limiting stopper is arranged on steel ball pod piece and spring takes up in the outer ring raceway between the piece.
Described steel ball pod piece has spherical recess, agrees with the steel ball shape.
Described limiting stopper and spring take up piece and all are fixed on the outer ring through link.
The beneficial effect of the utility model is:
One of which, this reciprocally swinging formula four point touching ball slewing bearing, it is simple in structure, and is novel, and after the work system motion, it is limited that steel ball is made the angle of rotation motion, and limiting stopper guarantees the extreme angles position of steel ball motion; The lasso straightway is not processed, and plays a supportive role, and its gyration center is constant, reaches the rotating accuracy same with the traditional bearing structure; The angle of outer collar arc section is greater than the angle of inside race annulus section, and the swing of inside race small angle range movement interference can not occur.
Two, this reciprocally swinging formula four point touching ball slewing bearing, its raceway is only processed arc section, and straightway is not processed, and manufacturing procedure is simplified greatly, on numerical control machining center, machines, and need not change the processing occasion, and workload reduces, and machining accuracy improves.Said processing raceway curve form is regular, the raceway face roughness is low, raceway limit mouth circular arc chamfering radius is consistent, and is connected with the roller surface balance.The raceway curved surface of rule, what make the quench-hardened case working depth evenly becomes possibility.The raceway curved surface of numerical control turning removes rough surface and is outside one's consideration, and the raceway curved surface after all the other sizes and the grinding is in full accord, so the grinding allowance of raceway is very little.Compare and adopt profiling mill processing peach type raceway in the traditional processing mode, have better Economy.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the A-A generalized section of Fig. 1.
Reference character: 1, outer ring, 2, inner ring, 3, steel ball, 4, steel ball pod piece, 5, spring, 6, limiting stopper, 7, spring takes up piece.
Embodiment
As shown in the figure, the embodiment of the utility model is following:
As shown in the figure; A kind of reciprocally swinging formula four point touching ball slewing bearing, it mainly is made up of outer ring, inner ring and steel ball, and outer ring, inner ring connect to form by two parallel straightways and two arc sections; Article two, arc section lays respectively at two straightway two ends and is attached thereto; The joint is level and smooth arc transition, and the curvature of outer ring arc section and inner ring arc section equates that generally adopting coefficient of curvature is 0.55; Be exactly circular arc raceway groove radius of arc be 0.55 times of steel ball size, inner ring arc section angle is less than outer ring arc section angle; On outer ring arc section and inner ring arc section, be processed with peach type raceway; In each raceway, be provided with steel ball pod piece, spring, limiting stopper, spring and take up piece; Steel ball pod piece, spring, limiting stopper and spring take up piece and in each raceway, are equipped with two groups and be symmetrically distributed in the both sides of raceway; Steel ball is being loaded on the raceway on the middle arc section of two ends steel ball pod piece; One end of spring is arranged on spring and takes up on the piece, and the other end is loaded on the steel ball pod piece, and limiting stopper is arranged on steel ball pod piece and spring takes up in the outer ring raceway between the piece.
Described steel ball pod piece has spherical recess, agrees with the steel ball shape.
Described limiting stopper and spring take up piece and all are fixed on the outer ring, for example through link: limiting stopper, spring take up piece through processing unthreaded hole by bolt on the outer ring.
Describe in detail as follows in conjunction with accompanying drawing: limiting stopper 6, spring take up piece 7 and are installed on the outer ring 1, and on two arc sections of outer ring 1 symmetric arrangement, fix through connecting bolt.Spring 5 one ends are loaded on spring and take up in the mounting hole of piece 7, and the other end is loaded in the mounting hole of steel ball pod piece 4.For guaranteeing the bearing capacity of said block bearing, the steel ball 3 full dress between outer ring 1, inner ring 2 between two steel ball pod pieces.Steel ball 3 moves in raceway with the oscillating motion of work system, spring 5 with the motion compresses of steel ball 3, loosen.Limiting stopper 6 guarantees the limit position of steel ball 3 motions, and steel ball pod piece 4 arrives no longer motion behind this position, and spring 5 no longer is compressed.The geometrical shape of outer ring 1, inner ring 2 is that two arc sections and two straightways join, and wherein is being processed with peach type raceway on the inner peripheral surface of outer ring arc section and on the outer peripheral surface of inner ring arc section, and steel ball 3 is at 4 with raceway and contacts.The machining range of raceway is the arc section of said block bearing lasso, and the arc raceway angle satisfies the requirement of steel ball 3 motions greater than the extreme angles of steel ball 3 motions.In addition, the arc section angle of outer ring 1 guarantees that greater than the angle of inner ring 2 arc sections inner ring 2 can not interfere with outer ring 1 when carrying out small angle oscillation.The structure that said arc section and straightway join guarantees that its gyration center with conventional construction is consistent.
Claims (3)
1. reciprocally swinging formula four point touching ball slewing bearing; It is characterized in that: it mainly is made up of outer ring, inner ring and steel ball; Outer ring, inner ring connect to form by two parallel straightways and two arc sections, and two arc sections lay respectively at two straightway two ends and are attached thereto, and the joint is level and smooth arc transition; The curvature of outer ring arc section and inner ring arc section equates that inner ring arc section angle is less than outer ring arc section angle; On outer ring arc section and inner ring arc section, be processed with peach type raceway; In raceway, be provided with steel ball pod piece, spring, limiting stopper, spring and take up piece; Steel ball is being loaded on the raceway on the middle arc section of two ends steel ball pod piece; One end of spring is arranged on spring and takes up on the piece, and the other end is loaded on the steel ball pod piece, and limiting stopper is arranged on steel ball pod piece and spring takes up in the outer ring raceway between the piece.
2. a kind of reciprocally swinging formula four point touching ball slewing bearing according to claim 1 is characterized in that: described steel ball pod piece has spherical recess, agrees with the steel ball shape.
3. a kind of reciprocally swinging formula four point touching ball slewing bearing according to claim 1, it is characterized in that: described limiting stopper and spring take up piece and all are fixed on the outer ring through link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204277710U CN202301439U (en) | 2011-11-02 | 2011-11-02 | Reciprocating oscillating four-point contact ball slewing bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204277710U CN202301439U (en) | 2011-11-02 | 2011-11-02 | Reciprocating oscillating four-point contact ball slewing bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202301439U true CN202301439U (en) | 2012-07-04 |
Family
ID=46370345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204277710U Withdrawn - After Issue CN202301439U (en) | 2011-11-02 | 2011-11-02 | Reciprocating oscillating four-point contact ball slewing bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202301439U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364134A (en) * | 2011-11-02 | 2012-02-29 | 河南科技大学 | Reciprocating swing type four point contact ball rotating disk bearing |
| CN108361275A (en) * | 2018-02-22 | 2018-08-03 | 蚌埠市昊德汽车轴承有限责任公司 | A kind of high speed deep groove ball bearing |
-
2011
- 2011-11-02 CN CN2011204277710U patent/CN202301439U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364134A (en) * | 2011-11-02 | 2012-02-29 | 河南科技大学 | Reciprocating swing type four point contact ball rotating disk bearing |
| CN108361275A (en) * | 2018-02-22 | 2018-08-03 | 蚌埠市昊德汽车轴承有限责任公司 | A kind of high speed deep groove ball bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120704 Effective date of abandoning: 20130313 |
|
| RGAV | Abandon patent right to avoid regrant |