CN106523521B - Bearing assembly, shafting length adjusting method and RV retarder - Google Patents
Bearing assembly, shafting length adjusting method and RV retarder Download PDFInfo
- Publication number
- CN106523521B CN106523521B CN201710010270.4A CN201710010270A CN106523521B CN 106523521 B CN106523521 B CN 106523521B CN 201710010270 A CN201710010270 A CN 201710010270A CN 106523521 B CN106523521 B CN 106523521B
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- CN
- China
- Prior art keywords
- bearing
- outer ring
- rolling element
- inner race
- shafting
- 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.)
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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
- 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
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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
- 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
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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
- 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)
- Rolling Contact Bearings (AREA)
- Support Of The Bearing (AREA)
Abstract
The present invention relates to bearing assembly, shafting length adjusting method and RV retarders；A kind of bearing assembly includes bearing inner race, the bearing outer ring that end is used to cooperate with two component pushing tows of relative rotation, it further include the rolling element of at least two groups difference rule value, bearing assembly further includes one or more roller holder corresponding with rolling element group number, and the rolling element of difference group is assemblied in the bearing inner race obtained between the bearing inner race, bearing outer ring, the end spacing difference of bearing outer ring by corresponding roller holder；In shafting assembly, different groups of rolling element is assemblied between the bearing inner race, bearing outer ring by corresponding roller holder, so that the end spacing of the bearing inner race obtained, bearing outer ring is different, and then realizes the adjusting of shaft length；Compared to the mode adjusted with existing gasket, enhanced convenience, shafting assembly efficiency is higher.
Description
Technical field
The present invention relates to a kind of bearing assembly, shafting length adjusting method and RV retarders.
Background technique
With the rapid development of robot, key core components-RV retarder of robot has become current machinery
The favorite of industry, and with machine man-based development, requires it also higher and higher, and therefore, bearing matched with its is also necessary
The development kept pace with the times.As shown in Figure 1, existing RV retarder includes eccentric shaft 3, the two axial ends of eccentric shaft 3 are separately installed with circle
Taper roller bearing 2, tapered roller bearing 2 are equipped with gasket 1 backwards to the side of eccentric shaft 3.In retarder shafting assembling process, lead to
Adjustment gasket 1 is crossed to guarantee shafting length, i.e., when shafting length is less than normal, increases gasket quantity or replaces the pad of larger thickness
Piece；When shafting length is bigger than normal, it is ground gasket or replaces the gasket of thinner thickness.Shafting assembling process is very troublesome, time-consuming
Arduously, efficiency is lower, is unable to satisfy the scale of RV retarder, the requirement that high-volume efficiently produces.
Summary of the invention
The purpose of the present invention is to provide a kind of bearing assemblies, long to solve the eccentric shaft shafting in existing RV retarder
The problem of degree adjusting efficiency is lower, influences RV retarder production efficiency；The object of the invention is also to provide a kind of shafting length
Adjusting method；The object of the invention is also to provide a kind of RV retarders.
To achieve the above object, a kind of technical solution of bearing assembly of the invention is：A kind of bearing assembly includes end
It further include at least two groups difference rule value for bearing inner race, the bearing outer ring of two component pushing tows cooperation with relative rotation
Rolling element, bearing assembly further include one or more roller holder corresponding with rolling element group number, difference group
Rolling element is assemblied in the bearing inner race obtained between the bearing inner race, bearing outer ring, bearing by corresponding roller holder
The end spacing of outer ring is different.
The rolling element is spin, is respectively provided on the bearing inner race, bearing outer ring and matches with spin compression
The curved surface groove of conjunction, the groove on bearing outer ring and bearing inner race all have the extension of a quarter spherical part beyond spin
Section, the roller holder are equipped with the pocket hole being embedded in for spin, are equipped with fore shaft at pocket hole on roller holder.
Bearing inner race, bearing outer ring and the corresponding roller holder, rolling element pass through the relative rotation
The clamping action of two components and keep together.
A kind of technical solution of shafting length adjusting method of the invention is：A kind of shafting length adjusting method includes following
Step, the first step calculate required bearing height；Second step selects one group of 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 group of rolling element corresponding with required bearing height, be first worth intermediate rule one are selected in the following manner
Group rolling element is assembled to bearing inner race by corresponding barrel retainer, on bearing outer ring, measurement bearing height, by what is measured
Bearing height is compared with required bearing height, replaces the rolling element of suitable rule value.
A kind of technical solution of RV retarder of the invention is：RV retarder includes that eccentric shaft and setting are used on eccentric shaft
In the bearing of support eccentric shaft turns, the bearing is bearing assembly, and bearing assembly includes end for two with relative rotation
Bearing inner race, the bearing outer ring of a component pushing tow cooperation, further include the rolling element of at least two groups difference rule value, bearing assembly also wraps
One or more roller holder corresponding with rolling element group number is included, the rolling element of difference group passes through corresponding rolling element
The end spacing that retainer is assemblied in the bearing inner race, bearing outer ring that obtain between the bearing inner race, bearing outer ring is different.
The rolling element is spin, is respectively provided on the bearing inner race, bearing outer ring and matches with spin compression
The curved surface groove of conjunction, the groove on bearing outer ring and bearing inner race all have the extension of a quarter spherical part beyond spin
Section, the roller holder are equipped with the pocket hole being embedded in for spin, are equipped with fore shaft at pocket hole on roller holder.
Bearing inner race, bearing outer ring and the corresponding roller holder, rolling element pass through the relative rotation
The clamping action of two components and keep together.
The beneficial effects of the invention are as follows：Bearing assembly includes that bearing inner race, bearing outer ring, rolling element and rolling element are kept
Frame, rolling element include the rolling element with two or more rule values；In shafting assembly, different groups of rolling element is passed through into corresponding rolling
Kinetoplast retainer is assemblied between the bearing inner race, bearing outer ring, thus between the end of the bearing inner race obtained, bearing outer ring
Away from difference, and then realize the adjusting of shaft length；Compared to the mode adjusted with existing gasket, enhanced convenience, shafting dress
With more efficient.
Further, rolling element is spin, and curved surface groove is respectively equipped on bearing inner race, bearing outer ring, and rolling element is kept
Frame is equipped with pocket hole and fore shaft；Rolling ball gauge precision is easier to ensure that more enough realization shafting length is more accurately adjusted；Exist simultaneously
When shafting assembles tension, spin and bearing inner race, bearing outer ring friction are smaller, so that shafting is more flexible.
Further, bearing inner race, bearing outer ring and corresponding roller holder, rolling element pass through the relative rotation
Two components clamping action and keep together, by bearing, wherein the component on one side is removed and be can be realized to bearing assembly
Dismounting, and disassembly process will not will not cause larger scratch to avoid rolling rolling element between bearing inner race, bearing outer ring
Body is scraped off.
Detailed description of the invention
Fig. 1 is the eccentric shaft mounting structure schematic diagram in existing RV retarder；
Fig. 2 is the eccentric shaft mounting structure schematic diagram in a kind of specific embodiment of RV retarder of the invention；
Fig. 3 is the cross-sectional view of the bearing in Fig. 2；
Fig. 4 is the installation diagram of the retainer and rolling element in Fig. 2.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
A kind of specific embodiment of RV retarder of the invention, as shown in Figures 2 to 4, RV retarder includes eccentric shaft 3,
The both ends of eccentric shaft 3 are respectively equipped with bearing 9, and bearing 9 is equipped with gasket 1 backwards to the side of eccentric shaft 3.
Such as Fig. 3, bearing 9 includes 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 of bearing steel, and retainer 6 is processed using high-quality engineering plastics.
The spherical surface groove contacted with steel ball 4, spherical surface are respectively provided on the right side wall of outer ring 4 and the left side wall of inner ring 7
The curvature of groove is less than the curvature of steel ball 5；Groove on outer ring 4 and inner ring 7 all has in a quarter sphere for exceeding steel ball 5
Partial extended segment；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 ring structure, on retainer matrix between retainer matrix circumferential direction
Every being provided with multiple pocket holes being embedded in for steel ball 5, fore shaft 8 is equipped at the position close to the pocket hole on retainer matrix.
In the present embodiment, steel ball 5 makes the steel ball there are three types of rule value in the basic size of steel ball 5：± 0, ﹢ 0.004, ﹢
0.008, in use, steel ball 5 is assembled in the pocket hole of retainer 6, steel ball 5, can be under the constraint of pocket hole inner wall and fore shaft 8
It rotates freely and does not fall off in pocket hole.
When assembling eccentric shaft shafting, according to each component assembly ruler cooperated in eccentric shaft shafting with eccentric shaft 3 and bearing 9
Very little chain calculates the height of required bearing 9；It is steel ball standard component by the steel ball 5 with intermediate 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 and required bearing height compare.
If the height of the bearing 9 measured is greater than required bearing height, steel ball 5 in retainer 6, which is replaced with, has ± 0
The steel ball 5 of rule value, to reduce the height of bearing 9.
The height of the bearing 9 such as measured is less than required bearing height, then steel ball 5 in retainer 6 is replaced with ﹢
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 by outer ring 4, inner ring 7, the assembly of retainer 6 inclined
In mandrel 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 gasket 1.
Retainer 6 is in the compartment between outer ring 4 and inner ring 7, the line of steel ball 5 and 7 contact point of outer ring 4 and inner ring
With inside and outside circle sagittal plane at 65 ± 3 degree of angles；In the present embodiment, it by the steel ball 5 of above-mentioned three kinds of rule values, can be realized
Adjusting of the eccentric shaft shafting length within the scope of 0~0.016 ㎜.
In a kind of other embodiments of RV retarder of the invention, the bearing also may include tool there are two types of or four
Kind or more different rule values rolling element；And the rolling element is also possible to cylindrical body or cone.
A kind of specific embodiment of bearing assembly of the invention, the structure of bearing assembly and a kind of RV of aforementioned present invention subtract
The structure that the bearing on eccentric shaft is assemblied in any embodiment of fast device is identical, repeats no more.
A kind of the step of specific embodiment of shafting length adjusting method of the invention, shafting length adjusting method, can refer to
To the regulating step of eccentric shaft shafting length in a kind of any embodiment of RV retarder of aforementioned present invention, repeat no more.
Claims (1)
1. a kind of shafting length adjusting method, it is characterised in that：This approach includes the following steps, the first step, calculates required axis
Hold height；Second step selects one group of rolling element corresponding with required bearing height in the following manner, first advises centre
One group of rolling element of value is assembled to bearing inner race by corresponding roller holder, on bearing outer ring, measures bearing height, will
The bearing height measured is compared with required bearing height, replaces the rolling element of suitable rule value, by this group of rolling element, corresponding rolling
Kinetoplast retainer and bearing inner race, bearing outer ring are assemblied in shafting.
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 CN106523521A (en) | 2017-03-22 |
| CN106523521B true 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) |
Families Citing this family (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 |
Family Cites Families (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 |
| DE112008000830T5 (en) * | 2007-04-04 | 2010-02-18 | Ntn Corporation | Wheel bearing and wheel bearing device with the wheel 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 |
| JP2016205603A (en) * | 2015-04-28 | 2016-12-08 | 株式会社ハーモニック・ドライブ・システムズ | Planetary gear reduction gear |
| 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 |
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- 2017-01-06 CN CN201710010270.4A patent/CN106523521B/en active Active
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| Publication number | Publication date |
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| CN106523521A (en) | 2017-03-22 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| 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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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |