CN104088900A - Two-shaft three-circle double-array eccentric needle bearing combination - Google Patents
Two-shaft three-circle double-array eccentric needle bearing combination Download PDFInfo
- Publication number
- CN104088900A CN104088900A CN201410291083.4A CN201410291083A CN104088900A CN 104088900 A CN104088900 A CN 104088900A CN 201410291083 A CN201410291083 A CN 201410291083A CN 104088900 A CN104088900 A CN 104088900A
- Authority
- CN
- China
- Prior art keywords
- eccentric
- circle
- needle
- axle
- roller array
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/10—Bearings, parts of which are eccentrically adjustable with respect to each other
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/44—Needle bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/54—Systems consisting of a plurality of bearings with rolling friction
- F16C19/55—Systems consisting of a plurality of bearings with rolling friction with intermediate floating or independently-driven rings rotating at reduced speed or with other differential ball or roller bearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a two-shaft three-circle double-array eccentric needle bearing combination which comprises a driving shaft 1, a supporting shaft 2 and a three-ring needle bearing 3, wherein the three-ring needle bearing 3 is arranged between the driving shaft 1 and the supporting shaft 2. The driving shaft 1, as well as an outer ring 4, an outer needle array 5 and an eccentric middle ring 6, forms an eccentric rolling unit which moves along a rail taking the axial line A as a given axis; the supporting shaft 2 and an inner needle array 7 form a concentric rolling unit in the eccentric middle ring 6; when the driving shaft 1 moves along the rail around the axial line A, a concentric axial line B of the driving shaft 1 and the supporting shaft 2 can move along the same rail so as to command the supporting shaft 2 to work. According to the two-shaft three-circle double-array eccentric needle bearing combination, a conventional complicated combination with a transmission sleeve and a multi-tooth system which is required during the rail motion around the given axis is simplified; the two-shaft three-circle double-array eccentric needle bearing combination is easy to manufacture and assemble.
Description
Technical field
The invention belongs to universal machine product component combination technique field, be specifically related to the eccentric needle bearing combination of the two arrays of a kind of diaxon three circle.
Background technique
Needle bearing is a kind of of roller bearing.The difference of it and roller bearing, is its roller not only carefully but also long, and shape is as needle-like, and the length of roller will surpass several times of the diameters of roller, and this roller is called needle roller.Some the needle rollers and the retainer thereof that are radial arrangement, form the needle roller array of a ring-type.The structure of needle bearing is very compact, and the suitable radial space to bearing requires very tight shaft coupling combination to adopt.
In the past, when requiring the axle (being live axle) of drive motor to do orbiting around a set axle center, often needed by transmission sleeve, and need to be equipped with a complicated multiple tooth system and could realize.The present invention adopts the eccentric needle bearing structure of the two arrays of three circles, comes combined drive shaft and supporting axle, by the eccentric rotary of outer needle roller array, to reach, makes live axle around set axle center, make the object of orbiting; Meanwhile, by the concentric effect of live axle and supporting axle, command supporting axle to carry out work, thereby save the combining forms such as numerous and diverse sleeve, gear.
Summary of the invention
The object of this invention is to provide a kind of eccentric needle bearing combination of the two arrays of diaxon three circle that there is no above-mentioned shortcoming, simple in structure, easily manufacture and assemble.The present invention is achieved by the following technical solutions:
The eccentric needle bearing combination of the two arrays of a kind of diaxon three circle, include live axle 1, supporting axle 2, three circle needle bearings 3, it is characterized in that: described three circle needle bearings 3 include outer ring 4, outer needle roller array 5, eccentric centre circle 6, interior needle roller array 7, U-shaped disk 8.Described outer ring 4 is for seamless steel pipe is through punching press with process, the inward at both ends of outer ring 4 is crooked, to protect outer needle roller array 5, described outer needle roller array 5 comprises and is some needle rollers of radial arrangement and the ring-type that retainer forms thereof, outer needle roller array 5 is placed in outer ring 4, described eccentric centre circle 6 is the eccentric tubulose that thick walled steel tube or bar process, its internal diameter axis B is parallel to a side of external diameter axis A, described interior needle roller array 7 comprises and is some needle rollers of radial arrangement and the ring-type that retainer forms thereof, interior needle roller array 7 is placed in eccentric centre circle 6, described U-shaped disk 8 is for containing magnetic sheet material through being stamped to form, embed and be fixed on the left end of eccentric centre circle 6, within the outstanding protuberance of its radially outward is placed in curving inwardly of outer ring 4 left ends, to support the slip of outer needle roller array 5, its radially inside outstanding protuberance does not contact supporting axle 2, to support the slip of interior needle roller array 7.
The eccentric needle bearing combination of the two arrays of a kind of diaxon three circle, be further characterized in that: the diameter of described live axle 1 equals the internal diameter of eccentric centre circle 6, by live axle 1, from the right-hand member of eccentric centre circle 6 inserts and fixes, live axle 1 has just formed an eccentric rolling unit with outer ring 4, outer needle roller array 5, eccentric centre circle 6.In this unit, outer ring 4 and axis A fix, and by the rotation of live axle 1, drive eccentric centre circle 6 to make time rotational, and axis B is due to wobbler action, will be along take the orbiting that axis A is set axle center.
The eccentric needle bearing combination of the two arrays of a kind of diaxon three circle, be further characterized in that: described supporting axle 2 is the interior needle roller array 7 of contact directly, save the inner ring of three circle needle bearings 3 to save axial space, by supporting axle 2 and interior needle roller array 7 both in eccentric centre circle 6, formed again a rolling unit.In this unit, because the internal diameter axis B of eccentric centre circle 6 and the axis three of live axle 1 and supporting axle 2 coincide, therefore at live axle 1 around set axle center that is when axis A does orbiting, supporting axle 2 can move along identical track and work.
Accompanying drawing explanation
Fig. 1 is cross-sectional view of the present invention;
Fig. 2 is the two needle roller arrays of the present invention sectional position schematic diagram;
Fig. 3 is the three-dimensional display figure of the U-shaped disk 8 of the present invention.
Embodiment
Referring to attached Fig. 1 and 2, can find out, the live axle 1(that three circle needle bearings 3 are arranged on motor does not show motor) and supporting axle 2 between.Three circle needle bearings 3 are by irrotational, a fixing outer ring 4, outer needle roller arrays 5 ring-type, the some needle rollers of radiation arrangement vertically, an eccentric centre circle 6 that bottom is thicker, top is very thin forms an eccentric rolling unit together with live axle 1.It is axle center that changeless axis A be take in this unit, along the formed eccentric rolling track of axis B, does orbiting.The nominal inner ring that three circle needle bearings 3 are also substituted by a support shaft 2, interior needle roller arrays 7 ring-type, the some needle rollers of radiation arrangement vertically, be fixedly connected with the inner side surface of the eccentric centre circle 6 of live axle 1 with one, form together a concentric rolling unit.Because this unit diaxon is concentric, so when live axle 1 is done orbiting around this fixing axle center of axis A, supporting axle 2 can move along identical track and work.
Referring to accompanying drawing 1 and 3, the present invention arranges an axial U-shaped disk 8, the degree of eccentricity of the degree of eccentricity of U-shaped disk 8 and eccentric centre circle 6 is in full accord, U-shaped disk 8 is pushed from the left end of eccentric centre circle 6, eccentric centre circle 6 and U-shaped disk 8 these two-part are linked together fully, and, the outstanding protuberance of U-shaped disk 8 radially outwards is used for supporting outer needle roller array 5, radially inwardly outstanding protuberance is used for supporting interior needle roller array 7, make three circle needle bearings 3 have outside outer ring 4 parcels, a left side has U-shaped disk 8 to support, the right side has under the care of live axle 1 insertion, form an organic whole.
Claims (3)
1. the eccentric needle bearing combination of the two arrays of diaxon three circle, include live axle 1, supporting axle 2, three circle needle bearings 3, it is characterized in that: described three circle needle bearings 3 are arranged between live axle 1 and supporting axle 2, and three circle needle bearings 3 include outer ring 4, outer needle roller array 5, eccentric centre circle 6, interior needle roller array 7, U-shaped disk 8, the inward at both ends of described outer ring 4 is crooked, described outer needle roller array 5 comprises and is some needle rollers of radial arrangement and the ring-type that retainer forms thereof, be placed in outer ring 4, the internal diameter axis B of described eccentric centre circle 6 is parallel to a side of its external diameter axis A, described interior needle roller array 7 comprises and is some needle rollers of radial arrangement and the ring-type that retainer forms thereof, be placed in eccentric centre circle 6, described U-shaped disk 8 embeds and is fixed on the left end of eccentric centre circle 6, within the outstanding protuberance of its radially outward is placed in curving inwardly of outer ring 4 left ends, to support the slip of outer needle roller array 5, its radially inside outstanding protuberance does not contact supporting axle 2, to support the slip of interior needle roller array 7.
2. according to right, need the eccentric needle bearing combination of the two arrays of a kind of diaxon three circle described in 1, be further characterized in that: the diameter of described live axle 1 equals the internal diameter of eccentric centre circle 6, by live axle 1 from the right-hand member of eccentric centre circle 6 inserts and fixes, live axle 1 just forms an eccentric rolling unit with outer ring 4, outer needle roller array 5, eccentric centre circle 6, outer ring 4 and the axis A of this unit fix, rotation by live axle 1 drives eccentric centre circle 6 to make time rotational, axis B is due to wobbler action, will be along take the orbiting that axis A is set axle center.
3. according to right, need the eccentric needle bearing combination of the two arrays of a kind of diaxon three circle described in 1, be further characterized in that: in described supporting axle 2 directly contacts, needle roller array 7 is to replace the inner ring of three circle needle bearings 3, by supporting axle 2 and interior needle roller array 7 both in eccentric centre circle 6, form a concentric rolling unit, the axis three unification of the internal diameter axis B of the eccentric centre circle 6 of this unit and live axle 1 and supporting axle 2, therefore when live axle 1 is done orbiting around axis A, supporting axle 2 can move along identical track and work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410291083.4A CN104088900A (en) | 2014-06-25 | 2014-06-25 | Two-shaft three-circle double-array eccentric needle bearing combination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410291083.4A CN104088900A (en) | 2014-06-25 | 2014-06-25 | Two-shaft three-circle double-array eccentric needle bearing combination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104088900A true CN104088900A (en) | 2014-10-08 |
Family
ID=51636643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410291083.4A Pending CN104088900A (en) | 2014-06-25 | 2014-06-25 | Two-shaft three-circle double-array eccentric needle bearing combination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104088900A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001095A (en) * | 2021-11-09 | 2022-02-01 | 华南理工大学 | Composite rolling bearing capable of supporting shaft to do planetary motion |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6220760B1 (en) * | 1998-07-10 | 2001-04-24 | Fag Automobiltechnik Ag | Three-ring needle bearing |
| CN201013744Y (en) * | 2007-03-19 | 2008-01-30 | 洛阳德润精密机床轴承有限公司 | Three-ring eccentric composite roller bearing |
| DE102008063117A1 (en) * | 2008-12-24 | 2010-07-01 | Ab Skf | Printing machine bearing i.e. three-ring bearing, arrangement, has outer profile sleeve with outer conical sections in borehole, where sections are axially arranged in parallel and form outer sawtooth profile running in axial direction |
| CN101871490A (en) * | 2009-04-21 | 2010-10-27 | 格罗兹-贝克特公司 | The rolling bearing of radial gear |
| CN102032268A (en) * | 2011-01-01 | 2011-04-27 | 常熟长城轴承有限公司 | Bearing with adjustable shaft distance |
| CN103047277A (en) * | 2013-01-06 | 2013-04-17 | 洛阳轴研科技股份有限公司 | Double-row and double-column hollow cylindrical roller bearing comprising eccentric center ring |
| CN103711791A (en) * | 2013-12-26 | 2014-04-09 | 常熟长城轴承有限公司 | Composite bearing with eccentric structure |
-
2014
- 2014-06-25 CN CN201410291083.4A patent/CN104088900A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6220760B1 (en) * | 1998-07-10 | 2001-04-24 | Fag Automobiltechnik Ag | Three-ring needle bearing |
| CN201013744Y (en) * | 2007-03-19 | 2008-01-30 | 洛阳德润精密机床轴承有限公司 | Three-ring eccentric composite roller bearing |
| DE102008063117A1 (en) * | 2008-12-24 | 2010-07-01 | Ab Skf | Printing machine bearing i.e. three-ring bearing, arrangement, has outer profile sleeve with outer conical sections in borehole, where sections are axially arranged in parallel and form outer sawtooth profile running in axial direction |
| CN101871490A (en) * | 2009-04-21 | 2010-10-27 | 格罗兹-贝克特公司 | The rolling bearing of radial gear |
| CN102032268A (en) * | 2011-01-01 | 2011-04-27 | 常熟长城轴承有限公司 | Bearing with adjustable shaft distance |
| CN103047277A (en) * | 2013-01-06 | 2013-04-17 | 洛阳轴研科技股份有限公司 | Double-row and double-column hollow cylindrical roller bearing comprising eccentric center ring |
| CN103711791A (en) * | 2013-12-26 | 2014-04-09 | 常熟长城轴承有限公司 | Composite bearing with eccentric structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001095A (en) * | 2021-11-09 | 2022-02-01 | 华南理工大学 | Composite rolling bearing capable of supporting shaft to do planetary motion |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141008 |
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| WD01 | Invention patent application deemed withdrawn after publication |