CN106402177A - Rolling bearing with electric bypass structure of rolling body - Google Patents
Rolling bearing with electric bypass structure of rolling body Download PDFInfo
- Publication number
- CN106402177A CN106402177A CN201611012812.3A CN201611012812A CN106402177A CN 106402177 A CN106402177 A CN 106402177A CN 201611012812 A CN201611012812 A CN 201611012812A CN 106402177 A CN106402177 A CN 106402177A
- Authority
- CN
- China
- Prior art keywords
- bearing
- rolling
- outer ring
- rolling element
- bypass structure
- 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
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 76
- 239000000463 material Substances 0.000 claims abstract description 11
- 230000005611 electricity Effects 0.000 claims description 15
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 8
- 239000004917 carbon fiber Substances 0.000 claims description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000010408 film Substances 0.000 description 22
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 241000222712 Kinetoplastida Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005524 ceramic coating Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
- F16C41/002—Conductive elements, e.g. to prevent static electricity
-
- 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
- F16C2202/00—Solid materials defined by their properties
- F16C2202/30—Electric properties; Magnetic properties
- F16C2202/32—Conductivity
-
- 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
- F16C2380/00—Electrical apparatus
- F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a rolling bearing with an electric bypass structure of a rolling body. The rolling bearing comprises a bearing inner ring, a bearing outer ring, the rolling body arranged between the bearing inner ring and the bearing outer ring, and a conducting body arranged between the bearing inner ring and the bearing outer ring, located on at least one side of the rolling body and used as an electric bridge for keeping conducting connection between the bearing inner ring and the bearing outer ring, wherein the conducting body is a conducting film, and the conducting film is of an annular structure and radially extends to the bearing outer ring from the bearing inner ring. According to the rolling bearing disclosed by the invention, the conducting film is used as the conducting body; and in this way, the self-supporting capacity and self-supporting keeping capacity of a film material are adequately utilized, thus the used material is effectively reduced, the cost is lower, the structure is simpler, and the conducting performance is improved while reliability is ensured.
Description
Technical field
The present invention relates to technical field of rolling bearings, more particularly, to a kind of axis of rolling with rolling element electricity bypass structure
Hold.
Background technology
For part motor, especially variable frequency drive motors, induced-current can be formed when rotating in its rotor, this sensing
Electric current can be flowed out by the rolling bearing on motor, and this unnecessary induced-current can destroy the grease in rolling bearing, produces
Electroplating effect, thus damage the rolling element in rolling bearing and its rolling surface.
In order to avoid this damaged condition, the counter-measure being currently known has two kinds, a kind of be this kind of motor rolling
Dynamic bearing generally using electrically individually hanging up, a ceramic coating is arranged on the outer surface of the rolling element in rolling bearing so that
Electric current will not be formed when rolling element；Or, using ceramic rolling element inside rolling bearing, thus realizing motor and axle
Electric insulation between holding.Another kind is made by slip ring derives electric current from rotor, or uses the conductive grease containing copper
The electric current being formed in rolling bearing is derived, thus avoiding the rolling element in rolling bearing to damage.
Although the above measure action effect or good on rare occasion, relatively costly, and stability is relatively
Difference.For this reason, applicant carried out beneficial exploration and trial, have found result of the above problems, described below
Technical scheme produces under this background.
Content of the invention
The technical problem to be solved：A kind of carrying is provided to roll for the deficiency of existing rolling bearing presence
The rolling bearing of kinetoplast electricity bypass structure.
Technical problem solved by the invention can employ the following technical solutions to realize：
A kind of rolling bearing with rolling element electricity bypass structure, including bearing inner race, bearing outer ring, is arranged on described axle
Hold the rolling element between inner ring and bearing outer ring and be arranged between described bearing inner race and bearing outer ring and be located at described rolling
At least side of kinetoplast for as electric bridge, by described bearing inner race and the bearing outer ring electric conductor that is conductively connected of holding, it is special
Levy and be, described electric conductor is conductive film, described conductive film structure annular in shape is simultaneously extended radially to by described bearing inner race
Described bearing outer ring.
In a preferred embodiment of the invention, described conductive film is made using glass fibre PTEE material.
In a preferred embodiment of the invention, described conductive film is made using carbon fiber.
In a preferred embodiment of the invention, described carbon fiber is the carbon fiber containing epoxy resin.
In a preferred embodiment of the invention, pass through fastening in the inner peripheral of described conductive film or outboard peripheries
Part is fixed on the outer ring surface of described bearing inner race or the inner ring surface of bearing outer ring, the outboard peripheries of described conductive film or inner side
Form sliding contact between the inner ring surface of periphery and described bearing outer ring or the inner ring surface of bearing inner race.
In a preferred embodiment of the invention, described securing member is snap ring.
In a preferred embodiment of the invention, described securing member is dust cover or gasket seal.
In a preferred embodiment of the invention, described dust cover is made using Steel material.
In a preferred embodiment of the invention, described gasket seal by annular metal skeleton and is coated on described ring
Rubber bodies around shape metallic framework are constituted.
In a preferred embodiment of the invention, described gasket seal by annular metal skeleton and is coated on described ring
Rubber bodies on the inner peripheral of shape metallic framework or outboard peripheries are constituted.
Due to employing technical scheme as above, the beneficial effects of the present invention is：The present invention adopts conductive film conduct
Electric conductor, bearing inner race and bearing outer ring are kept being conductively connected, and formation can be derived and be formed between bearing inner race and bearing outer ring
Current path, so make full use of the self-sustained ability of thin-film material and self holding capacity, thus efficiently reducing institute
With material, cost is lower, and structure is simpler, improves electric conductivity while ensureing reliability.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of embodiments of the invention 1.
Fig. 2 is the structural representation of the conductive film of embodiments of the invention 1.
Fig. 3 is the structural representation of embodiments of the invention 2.
Fig. 4 is the structural representation of embodiments of the invention 2.
Fig. 5 is the structural representation of embodiments of the invention 2.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention realizes are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
Embodiment 1
Referring to Fig. 1, what in figure was given is a kind of rolling bearing 1 with rolling element electricity bypass structure, including bearing inner race
2nd, bearing outer ring 3, rolling element 5, retainer 6, conductive film 7 and elastic baffle ring 8.
It is respectively formed with rolling annular groove 4, rolling element 5 sets on the outer ring surface of bearing inner race 2 and on the inner ring surface of bearing outer ring 3
Put between bearing inner race 2 and bearing outer ring 3, and the rolling rolling on annular groove 4 and bearing outer ring 3 being located on bearing inner race 2
In the raceway that annular groove 4 is constituted, and identical spacing is mutually kept by retainer 6.
Conductive film 7 is arranged between bearing inner race 2 and bearing outer ring 3, and is located at the both sides of rolling element 5 respectively.Referring to
Fig. 2, conductive film 7 forms, according to punch forming process, the ring-type belt body 7a matching with bearing geometry, has inner side week
Edge 7b and outboard peripheries 7c, and extend radially to bearing outer ring 3 from bearing inner race 2.In the present embodiment, conductive film 7 adopts
Glass fibre PTEE material is made, and glass fibre PTEE material has high graphite or other carbon element contents it is ensured that and improve
Electric conductivity.Or, conductive film 7 is made using carbon fiber, preferably by the carbon fiber containing epoxy resin.
Elastic baffle ring 8 is arranged on two sides of bearing inner race 2 and bearing outer ring 3, and the outboard peripheries of elastic baffle ring 8 embed axle
In the annular recess 9 that the radial protrusion 10 of bearing outer-ring 3 side is formed, the inner side of its outboard peripheries is by the outside of conductive film 7
Periphery 7c is fixed on bearing outer ring 3, and the inner peripheral 7b of conductive film 7 slidably contacts with bearing according to conductive requirement
On the oblique angle 11 being formed on the outer ring surface of circle 2.
With respect to axis 12, particularly bearing inner race 2, bearing outer ring 3, rolling annular groove 4, conductive film 7, elastic baffle ring 8
Concentrically arranged relative to each other with annular recess 9.Thin membrane regions between medial and lateral periphery 7b and 7c of conductive film 7 are each relatively outer
Ring 3 is freely hung up, and bearing inner race 2 self-supporting relatively.
Rolling bearing 1 is connected with variable-frequency motor driver, then the electric current sensing passed through in rotor will be in bearing inner race 2 and axle
Form electrical potential difference, due to defining conductive company through conductive film 7 between bearing inner race 2 and bearing outer ring 3 between bearing outer-ring 3
Connect so that realizing Direct Current transmission between bearing inner race 2 and bearing outer ring 3 is short circuit, electric current will not be through rolling element 5 and axle
Hold the contact point rolling between annular groove 4 that inner ring 2 and bearing outer ring 3 formed to flow out, prevent in rolling element 5 simultaneously and/or
Roll and in annular groove 4, form the galvano-cautery phenomenons such as microbonding mouth.
Embodiment 2
Rolling bearing in the present embodiment is roughly the same with the rolling bearing in embodiment 1, and its difference is, referring to Fig. 3,
Outboard peripheries 7c of conductive film 7 are fixed on bearing outer ring 3 by dust cover 13, and dust cover 13 adopts Steel material system
Become, the outboard peripheries of dust cover 13 embed in the annular recess that the radial protrusion 10 of bearing outer ring 3 side is formed, conductive thin
The oblique angle 11 that the inner peripheral 7b of film 7 is formed along along the outer ring surface of bearing inner race 2 slides.
Embodiment 3
Rolling bearing in the present embodiment is roughly the same with the rolling bearing in embodiment 1, and its difference is, referring to Fig. 4,
Outboard peripheries 7c of conductive film 7 are fixed on bearing outer ring 3 by sealing gasket 14, and sealing gasket 14 is L-type by axial cross section
Metallic framework 15 and the rubber bodies being coated on around metallic framework 15 are constituted, and the outboard peripheries 16 of sealing gasket 14 embed outside bearing
Enclose in the annular recess that the radial protrusion 10 of 3 sides is formed, its inner peripheral 17 extends radially to the outer ring surface of bearing inner race 2
Place, and form sliding contact between the two.
Embodiment 4
Rolling bearing in the present embodiment is roughly the same with the rolling bearing in embodiment 1, and its difference is, the present embodiment
In rolling bearing roughly the same with the rolling bearing in embodiment 1, its difference is, referring to Fig. 5, the outside of conductive film 7
Periphery 7c is fixed on bearing outer ring 3 by sealing gasket, and sealing gasket 14 is the metallic framework 18 of L-type and cladding by axial cross section
Rubber bodies 19 in the outboard peripheries of metallic framework 18 are constituted, and rubber bodies 19 embed the radial protrusion 10 of bearing outer ring 3 side
In the annular recess being formed, its inner peripheral extends radially at the outer ring surface of bearing inner race 2, and forms slip between the two
Contact.
General principle and principal character and the advantages of the present invention of the present invention have been shown and described above.The technology of the industry
, it should be appreciated that the present invention is not restricted to the described embodiments, the simply explanation described in above-described embodiment and specification is originally for personnel
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and its
Equivalent thereof.
Claims (10)
1. a kind of rolling bearing with rolling element electricity bypass structure, including bearing inner race, bearing outer ring, is arranged on described bearing
Rolling element between inner ring and bearing outer ring and be arranged between described bearing inner race and bearing outer ring and be located at described rolling
At least side of body for as electric bridge by described bearing inner race and the bearing outer ring electric conductor that is conductively connected of holding, its feature
It is, described electric conductor is conductive film, described conductive film structure annular in shape simultaneously extends radially to institute by described bearing inner race
State bearing outer ring.
2. carry as claimed in claim 1 the rolling bearing of rolling element electricity bypass structure it is characterised in that described conductive film
Made using glass fibre PTEE material.
3. carry as claimed in claim 1 the rolling bearing of rolling element electricity bypass structure it is characterised in that described conductive film
Made using carbon fiber.
4. the rolling bearing carrying rolling element electricity bypass structure as claimed in claim 3 is it is characterised in that described carbon fiber is
Carbon fiber containing epoxy resin.
5. as any one of Claims 1-4 with rolling element electricity bypass structure rolling bearing it is characterised in that
In the inner peripheral of described conductive film or outboard peripheries, outer ring surface or the bearing of described bearing inner race is fixed on by securing member
On the inner ring surface of outer ring, in the inner ring surface of the outboard peripheries of described conductive film or inner peripheral and described bearing outer ring or bearing
Form sliding contact between the inner ring surface of circle.
6. the rolling bearing carrying rolling element electricity bypass structure as claimed in claim 5 is it is characterised in that described securing member is
Snap ring.
7. the rolling bearing carrying rolling element electricity bypass structure as claimed in claim 5 is it is characterised in that described securing member is
Dust cover or gasket seal.
8. carry as claimed in claim 7 the rolling bearing of rolling element electricity bypass structure it is characterised in that described dust cover
Made using Steel material.
9. carry as claimed in claim 7 the rolling bearing of rolling element electricity bypass structure it is characterised in that described gasket seal
By annular metal skeleton and the rubber bodies that are coated on around described annular metal skeleton are constituted.
10. carry as claimed in claim 7 the rolling bearing of rolling element electricity bypass structure it is characterised in that described sealing gasket
Rubber bodies on inner peripheral that piece by annular metal skeleton and is coated on described annular metal skeleton or outboard peripheries are constituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611012812.3A CN106402177A (en) | 2016-11-17 | 2016-11-17 | Rolling bearing with electric bypass structure of rolling body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611012812.3A CN106402177A (en) | 2016-11-17 | 2016-11-17 | Rolling bearing with electric bypass structure of rolling body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106402177A true CN106402177A (en) | 2017-02-15 |
Family
ID=58068895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611012812.3A Pending CN106402177A (en) | 2016-11-17 | 2016-11-17 | Rolling bearing with electric bypass structure of rolling body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106402177A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173844A (en) * | 2019-12-25 | 2020-05-19 | 吴江天龙电子机械设备有限公司 | conductive bearing |
| US10883541B2 (en) * | 2019-02-19 | 2021-01-05 | Schaeffler Technologies AG & Co. KG | Electrically isolated non-sealed bearing |
| CN112247482A (en) * | 2020-09-25 | 2021-01-22 | 王俊霞 | Preparation method of rotary conductive mechanism |
| CN113513534A (en) * | 2021-05-24 | 2021-10-19 | 浙江大学 | Conductive rolling bearing with nickel-graphite conductive coating and preparation method |
| CN114382784A (en) * | 2020-10-16 | 2022-04-22 | 舍弗勒技术股份两合公司 | Conductive sealing ring and its manufacturing method, bearing |
-
2016
- 2016-11-17 CN CN201611012812.3A patent/CN106402177A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10883541B2 (en) * | 2019-02-19 | 2021-01-05 | Schaeffler Technologies AG & Co. KG | Electrically isolated non-sealed bearing |
| CN111173844A (en) * | 2019-12-25 | 2020-05-19 | 吴江天龙电子机械设备有限公司 | conductive bearing |
| CN112247482A (en) * | 2020-09-25 | 2021-01-22 | 王俊霞 | Preparation method of rotary conductive mechanism |
| CN114382784A (en) * | 2020-10-16 | 2022-04-22 | 舍弗勒技术股份两合公司 | Conductive sealing ring and its manufacturing method, bearing |
| CN113513534A (en) * | 2021-05-24 | 2021-10-19 | 浙江大学 | Conductive rolling bearing with nickel-graphite conductive coating and preparation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20171009 Address after: 315300, No. 188, Xinxing Road, hi tech Industrial Development Zone, Zhejiang, Ningbo, Cixi Applicant after: Cixing Group Co., Ltd. Address before: 315300, No. 188, Xinxing Road, hi tech Industrial Development Zone, Zhejiang, Ningbo, Cixi Applicant before: Ningbo Cixing Precision Transmission Technology Co. Ltd. |
|
| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170215 |
|
| RJ01 | Rejection of invention patent application after publication |