CN106523521A - Bearing assembly, shaft system length regulating method and RV speed reducer - Google Patents
Bearing assembly, shaft system length regulating method and RV speed reducer Download PDFInfo
- Publication number
- CN106523521A CN106523521A CN201710010270.4A CN201710010270A CN106523521A CN 106523521 A CN106523521 A CN 106523521A CN 201710010270 A CN201710010270 A CN 201710010270A CN 106523521 A CN106523521 A CN 106523521A
- Authority
- CN
- China
- Prior art keywords
- bearing
- outer ring
- rolling element
- bearing outer
- roller holder
- 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.)
- Granted
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Classifications
-
- 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
- F16C19/50—Other types of ball or roller bearings
- F16C19/505—Other types of ball or roller bearings with the diameter of the rolling elements of one row differing from the diameter of those of another row
-
- 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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/38—Ball cages
-
- 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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/583—Details of specific parts of races
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Support Of The Bearing (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention relates to a bearing assembly, a shaft system length regulating method and a RV speed reducer. The bearing assembly comprises a bearing inner ring, a bearing outer ring and further comprises at least two groups of rolling bodies with different gauge values as well as one or more rolling body holding frames, wherein the end part of the bearing inner ring and the end part of the bearing outer ring are in pushing fit to two parts which oppositely rotate; the number of the rolling body holding frames corresponds to the rolling body group number; end part distances of the bearing inner ring and the bearing outer ring obtained in a mode that different groups of the rolling bodies are assembled between the bearing inner ring and the bearing outer ring through the corresponding rolling body holding frames are different; when a shaft system is assembled, different groups of the rolling bodies are assembled between the bearing inner ring and the bearing outer ring through the corresponding rolling body holding frames, so that the obtained end part distances of the bearing inner ring and the bearing outer ring are different, and therefore, regulation on length of the shaft system is realized; and compared with an existing gasket regulating mode, the bearing assembly has the advantages that the bearing assembly is more convenient, and is higher in shaft system assembly efficiency.
Description
Technical field
The present invention relates to a kind of bearing assembly, shafting length adjusting method and RV decelerators.
Background technology
With developing rapidly for robot, the key core parts RV decelerators of robot have become current machinery
The favorite of industry, and with machine man-based development, also more and more higher is required to which, therefore, the bearing supporting with which is also necessary
The development kept pace with the times.As shown in figure 1, existing RV decelerators include eccentric shaft 3, the two axial ends of eccentric shaft 3 are separately installed with circle
Taper roller bearing 2, the side of the dorsad eccentric shaft 3 of taper roll bearing 2 are provided with pad 1.In decelerator shafting assembling process, lead to
Cross adjust pad 1 to ensure shafting length, i.e., when shafting length is less than normal, increase pad quantity or change the pad of larger thickness
Piece；When shafting length is bigger than normal, it is ground pad or changes the pad of thinner thickness.Shafting assembling process is bothered very much, time-consuming
Arduously, it is less efficient, it is impossible to meet RV decelerator scales, the requirement of the efficient production of high-volume.
The content of the invention
It is an object of the invention to provide a kind of bearing assembly, long to solve the eccentric shaft shafting in existing RV decelerators
Degree adjusts less efficient, affects the problem of RV decelerator production efficiencys；The present invention also aims to provide a kind of shafting length
Control method；The present invention also aims to provide a kind of RV decelerators.
For achieving the above object, a kind of technical scheme of bearing assembly of the invention is：A kind of bearing assembly includes end
For coordinate with the two part pushing tows for relatively rotating bearing inner race, bearing outer ring, also including at least two groups different rule values
Rolling element, bearing assembly also include one or more roller holder corresponding with rolling element group number, different groups
Rolling element is assemblied in the bearing inner race obtain between the bearing inner race, bearing outer ring, bearing by correspondence roller holder
The tip spacing of outer ring is different.
Described rolling element is spin, is respectively provided with to compress with spin on described bearing inner race, bearing outer ring and matches somebody with somebody
The curved surface groove of conjunction, the groove on bearing outer ring and bearing inner race are respectively provided with the extension of a quarter spherical part beyond spin
Section, described roller holder are provided with the pocket hole for spin setting-in, are provided with fore shaft on roller holder at pocket hole.
Described bearing inner race, bearing outer ring and corresponding roller holder, rolling element are by the relative rotation
The clamping action of two parts and keep together.
A kind of technical scheme of shafting length adjusting method of the present invention is：A kind of shafting length adjusting method includes following
Step, the first step, the bearing height needed for calculating；Second step, selects the one group rolling element corresponding with required bearing height,
This group of rolling element, corresponding roller holder and bearing inner race, bearing outer ring are assemblied in shafting.
One corresponding with required bearing height group rolling element, that first middle rule are worth are selected in the following manner
Group rolling element is assembled on bearing inner race, bearing outer ring by corresponding barrel retainer, measures bearing height, by what is measured
Bearing height is compared with required bearing height, changes the rolling element of suitable rule value.
A kind of technical scheme of RV decelerators of the present invention is：RV decelerators include eccentric shaft and are arranged on eccentric shaft using
In support eccentric shaft turns bearing, the bearing be bearing assembly, bearing assembly include end for relatively rotate two
The bearing inner race of individual part pushing tow cooperation, bearing outer ring, also including the rolling element of at least two groups different rule values, bearing assembly is also wrapped
One or more roller holder corresponding with rolling element group number is included, the rolling element of different groups is by correspondence rolling element
Retainer is assemblied in bearing inner race, the tip spacing difference of bearing outer ring obtain between the bearing inner race, bearing outer ring.
Described rolling element is spin, is respectively provided with to compress with spin on described bearing inner race, bearing outer ring and matches somebody with somebody
The curved surface groove of conjunction, the groove on bearing outer ring and bearing inner race are respectively provided with the extension of a quarter spherical part beyond spin
Section, described roller holder are provided with the pocket hole for spin setting-in, are provided with fore shaft on roller holder at pocket hole.
Described bearing inner race, bearing outer ring and corresponding roller holder, rolling element are by the relative rotation
The clamping action of two parts and keep together.
The invention has the beneficial effects as follows：Bearing assembly includes that bearing inner race, bearing outer ring, rolling element and rolling element keep
Frame, rolling element include the rolling element with two or more rule values；When shafting is assembled, by the rolling element of different groups by correspondence rolling
Kinetoplast retainer is assemblied between the bearing inner race, bearing outer ring, so as to obtain bearing inner race, between the end of bearing outer ring
Away from difference, and then realize the regulation of shaft length；Compare the mode adjusted with existing pad, enhanced convenience, shafting dress
With in hgher efficiency.
Further, rolling element is spin, and curved surface groove is respectively equipped with bearing inner race, bearing outer ring, and rolling element keeps
Frame is provided with pocket hole and fore shaft；Rolling ball gauge precision is easier to ensure that, more enough to realize that shafting length is more accurately adjusted；Exist simultaneously
During shafting assembling tension, spin is less with bearing inner race, bearing outer ring friction so that shafting is more flexible.
Further, bearing inner race, bearing outer ring and corresponding roller holder, rolling element are by the relative rotation
Two parts clamping action and keep together, by bearing part wherein pull down i.e. be capable of achieving to bearing assembly
Dismounting, and disassembly process will not will not cause larger scratching to avoid rolling between bearing inner race, bearing outer ring to rolling element
Body is scraped off.
Description of the drawings
Fig. 1 is the eccentric shaft mounting structure schematic diagram in existing RV decelerators；
Fig. 2 is the eccentric shaft mounting structure schematic diagram in a kind of specific embodiment of RV decelerators of the present invention；
Sectional views of the Fig. 3 for the bearing in Fig. 2；
Installation diagrams of the Fig. 4 for retainer and rolling element in Fig. 2.
Specific embodiment
Below in conjunction with the accompanying drawings embodiments of the present invention are described further.
A kind of specific embodiment of the RV decelerators of the present invention, as shown in Figures 2 to 4, RV decelerators include eccentric shaft 3,
Eccentric shaft 3 is respectively arranged at two ends with bearing 9, and the side of the dorsad eccentric shaft 3 of bearing 9 is provided with pad 1.
Such as Fig. 3, bearing 9 include outer ring 4, inner ring 7, steel ball 5 and retainer 6；In the present embodiment, outer ring 4,7 and of inner ring
Steel ball 5 is made up of bearing steel, and retainer 6 is processed using high-quality engineering plastics.
The sphere groove contacted with steel ball 4, sphere are respectively provided with the left side wall of the right side wall and inner ring 7 of outer ring 4
Curvature of the curvature of groove less than steel ball 5；Groove on outer ring 4 and inner ring 7 is respectively provided with a quarter spheroid beyond steel ball 5
Partial extension；In the present embodiment, the curvature of 4 groove of outer ring takes 0.525, and the curvature of 7 groove of inner ring takes 0.515.
Such as Fig. 4, retainer 6 includes the retainer matrix of loop configuration, on retainer matrix along between retainer matrix circumference
Every the embedded pocket hole of multiple confession steel balls 5 is provided with, on retainer matrix, fore shaft 8 is being provided with the position in the pocket hole.
In the present embodiment, steel ball 5 is formed with the steel ball of three kinds of rule values in the basic size of steel ball 5：± 0,0.004,
0.008, during use, steel ball 5 is assembled in the pocket hole of retainer 6, steel ball 5, can be with the constraint of pocket hole inwall and fore shaft 8
Rotate freely in pocket hole and do not fall off.
When eccentric shaft shafting is assembled, according to each component assembly chi coordinated with eccentric shaft 3 and bearing 9 in eccentric shaft shafting
Very little chain, the height of the bearing 9 needed for calculating；It is steel ball standard component by the steel ball 5 with middle rule value 0.004.
Steel ball standard component is installed on inner ring 7 and outer ring 4 by retainer 6, the height of bearing 9 is measured, by what is measured
The height of bearing 9 is contrasted with required bearing height.
If the height of the bearing for measuring 9 is more than required bearing height, steel ball 5 in retainer 6 is replaced with ± 0
The steel ball 5 of rule value, to reduce the height of bearing 9.
Height such as the bearing 9 for measuring be less than needed for bearing height, then steel ball 5 in retainer 6 is replaced with and is had
The steel ball 5 of 0.008 rule value, to increase the height of bearing 9.
Steel ball 5 with suitable rule value is assembled on retainer 6, then outer ring 4, inner ring 7, retainer 6 are assembled inclined
On heart axle 3, steel ball 5 is stuck between outer ring 4 and inner ring 7, is clamped bearing 9 with the shaft shoulder of eccentric shaft 3 and pad 1.
Line of the retainer 6 in the compartment between outer ring 4 and inner ring 7, steel ball 5 and 7 contact point of outer ring 4 and inner ring
With inside and outside circle sagittal plane into 65 ± 3 degree of angles；In the present embodiment, the steel ball 5 being worth by above-mentioned three kinds of rule, can realize
Regulation of the eccentric shaft shafting length in the range of 0～0.016.
In a kind of other embodiment of RV decelerators of the present invention, described bearing can also be included with two kinds or four
The rolling element of different rule values more than kind；And described rolling element can also be cylinder or cone.
A kind of specific embodiment of bearing assembly of the present invention, the structure of bearing assembly are subtracted with a kind of RV of the invention described above
The structure of the bearing being assemblied in any embodiment of fast device on eccentric shaft is identical, repeats no more.
The step of a kind of specific embodiment of shafting length adjusting method of the present invention, shafting length adjusting method, refers to
Regulating step in a kind of any embodiment of RV decelerators of the invention described above to eccentric shaft shafting length, repeats no more.
Claims (8)
1. a kind of bearing assembly, it is characterised in that：Including end for the bearing with the two part pushing tows cooperations for relatively rotating
Inner ring, bearing outer ring, also including the rolling element of at least two groups different rule values, bearing assembly also includes one or more and rolling
The corresponding roller holder of kinetoplast group number, the rolling element of different groups are assemblied in the bearing by correspondence roller holder
The bearing inner race that obtains between inner ring, bearing outer ring, bearing outer ring tip spacing it is different.
2. a kind of bearing assembly according to claim 1, it is characterised in that：Described rolling element be spin, described axle
The curved surface groove being respectively provided with inner ring, bearing outer ring with spin compression fit is held, on bearing outer ring and bearing inner race
Groove is respectively provided with the extension of a quarter spherical part beyond spin, and described roller holder is provided with embedding for spin
The pocket hole of dress, is provided with fore shaft on roller holder at pocket hole.
3. a kind of bearing assembly according to claim 1 and 2, it is characterised in that：Described bearing inner race, bearing outer ring and
Corresponding roller holder, rolling element are kept together by the clamping action of two parts of the relative rotation.
4. a kind of shafting length adjusting method, it is characterised in that：The method is comprised the following steps, the first step, the axle needed for calculating
Hold height；Second step, selects the one group rolling element corresponding with required bearing height, by this group of rolling element, corresponding rolling
Body retainer and bearing inner race, bearing outer ring are assemblied in shafting.
5. a kind of shafting length adjusting method according to claim 4, it is characterised in that：Select in the following manner and institute
One group of rolling element of middle rule value is kept by the corresponding one group of rolling element of bearing height first that need by corresponding barrel
It is rack-mounted to be fitted on bearing inner race, bearing outer ring, bearing height is measured, by the bearing height for measuring and required bearing height ratio
It is right, change the rolling element of suitable rule value.
6. a kind of RV decelerators, including eccentric shaft are used for the bearing for supporting eccentric shaft turns, its feature with being arranged on eccentric shaft
It is：The bearing is bearing assembly, and bearing assembly includes end for the axle coordinated with the two part pushing tows for relatively rotating
Hold inner ring, bearing outer ring, also including the rolling element of at least two groups different rule values, bearing assembly also include one or more with
The corresponding roller holder of rolling element group number, the rolling element of different groups are assemblied in the axle by correspondence roller holder
Hold bearing inner race, the tip spacing difference of bearing outer ring obtained between inner ring, bearing outer ring.
7. a kind of RV decelerators according to claim 6, it is characterised in that：Described rolling element be spin, described axle
The curved surface groove being respectively provided with inner ring, bearing outer ring with spin compression fit is held, on bearing outer ring and bearing inner race
Groove is respectively provided with the extension of a quarter spherical part beyond spin, and described roller holder is provided with embedding for spin
The pocket hole of dress, is provided with fore shaft on roller holder at pocket hole.
8. a kind of RV decelerators according to claim 6 or 7, it is characterised in that：Described bearing inner race, bearing outer ring and
Corresponding roller holder, rolling element are kept together by the clamping action of two parts of the relative rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710010270.4A CN106523521B (en) | 2017-01-06 | 2017-01-06 | Bearing assembly, shafting length adjusting method and RV retarder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710010270.4A CN106523521B (en) | 2017-01-06 | 2017-01-06 | Bearing assembly, shafting length adjusting method and RV retarder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106523521A true CN106523521A (en) | 2017-03-22 |
| CN106523521B CN106523521B (en) | 2018-11-16 |
Family
ID=58336943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710010270.4A Active CN106523521B (en) | 2017-01-06 | 2017-01-06 | Bearing assembly, shafting length adjusting method and RV retarder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106523521B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317236A (en) * | 2018-03-29 | 2018-07-24 | 华南理工大学 | A kind of matching device and matching method of RV retarders bias axle assembly |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1743690A (en) * | 2005-09-30 | 2006-03-08 | 洛阳轴研科技股份有限公司 | Universal assembled angle contact ball bearing and its manufacturing method |
| CN201103615Y (en) * | 2007-10-01 | 2008-08-20 | 中机洛阳轴承科技有限公司 | Enhanced type entity holder thrust self-aligning roller bearing |
| CN101675259A (en) * | 2007-04-04 | 2010-03-17 | Ntn株式会社 | Bearing for wheel and bearing device adapted to be used for wheel and having the bearing |
| CN202790390U (en) * | 2012-07-11 | 2013-03-13 | 天津海益达科技有限公司 | Rod rotating shafting |
| CN104088899A (en) * | 2014-07-29 | 2014-10-08 | 洛阳轴研科技股份有限公司 | Special thin-wall main bearing of industrial robot |
| CN106015468A (en) * | 2016-07-25 | 2016-10-12 | 广州市昊志机电股份有限公司 | RV speed reducer with crossed roller bearings |
| US20160319927A1 (en) * | 2015-04-28 | 2016-11-03 | Harmonic Drive Systems Inc. | Planetary gear reducer |
| CN106195138A (en) * | 2016-09-07 | 2016-12-07 | 常州克劳诺斯特种轴承制造有限公司 | A kind of RV reductor |
-
2017
- 2017-01-06 CN CN201710010270.4A patent/CN106523521B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1743690A (en) * | 2005-09-30 | 2006-03-08 | 洛阳轴研科技股份有限公司 | Universal assembled angle contact ball bearing and its manufacturing method |
| CN101675259A (en) * | 2007-04-04 | 2010-03-17 | Ntn株式会社 | Bearing for wheel and bearing device adapted to be used for wheel and having the bearing |
| CN201103615Y (en) * | 2007-10-01 | 2008-08-20 | 中机洛阳轴承科技有限公司 | Enhanced type entity holder thrust self-aligning roller bearing |
| CN202790390U (en) * | 2012-07-11 | 2013-03-13 | 天津海益达科技有限公司 | Rod rotating shafting |
| CN104088899A (en) * | 2014-07-29 | 2014-10-08 | 洛阳轴研科技股份有限公司 | Special thin-wall main bearing of industrial robot |
| US20160319927A1 (en) * | 2015-04-28 | 2016-11-03 | Harmonic Drive Systems Inc. | Planetary gear reducer |
| CN106015468A (en) * | 2016-07-25 | 2016-10-12 | 广州市昊志机电股份有限公司 | RV speed reducer with crossed roller bearings |
| CN106195138A (en) * | 2016-09-07 | 2016-12-07 | 常州克劳诺斯特种轴承制造有限公司 | A kind of RV reductor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317236A (en) * | 2018-03-29 | 2018-07-24 | 华南理工大学 | A kind of matching device and matching method of RV retarders bias axle assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106523521B (en) | 2018-11-16 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20180509 Address after: 471000 No. 1 axis research road, Jianxi science and Technology Industrial Park, Luoyang, Henan Applicant after: Luoyang Bearing Research Institute Address before: 471039 Fenghua Road 6, hi tech Development Zone, Luoyang, Henan. Applicant before: Zhouyan Science and Technology Co., Ltd., Luoyang |
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