CN106979257A - Bidirectional electromagnetic overrunning clutch - Google Patents
Bidirectional electromagnetic overrunning clutch Download PDFInfo
- Publication number
- CN106979257A CN106979257A CN201710232772.1A CN201710232772A CN106979257A CN 106979257 A CN106979257 A CN 106979257A CN 201710232772 A CN201710232772 A CN 201710232772A CN 106979257 A CN106979257 A CN 106979257A
- Authority
- CN
- China
- Prior art keywords
- bidirectional
- connecting shaft
- fork
- cam
- interior
- 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
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 47
- 230000033001 locomotion Effects 0.000 claims abstract description 24
- 238000005096 rolling process Methods 0.000 claims abstract description 8
- 230000005284 excitation Effects 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 241000937378 Everettia interior Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
- F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
- F16D27/10—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings
- F16D27/102—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with radially movable clutching members
Abstract
The invention discloses a bidirectional electromagnetic overrun clutch, wherein a bidirectional cam connecting shaft is uniformly provided with a plurality of cam surfaces along the circumferential direction, a shaft hole of an outer hub connecting shaft is provided with an inner ring locking surface around the outer circle of the cam surface of the bidirectional cam connecting shaft, locking rollers are arranged on the cam surfaces, a pre-tightening spring is arranged between two adjacent locking rollers, the clutch is also provided with a spiral variable motion shifting fork mechanism, the spiral variable motion shifting fork mechanism comprises an inner shifting fork and an outer shifting fork, the inner shifting fork is arranged close to one side of a box cover, axially convex inner fork teeth are uniformly distributed on the inner shifting fork along the circumferential direction, axially convex outer fork teeth are uniformly distributed on the outer shifting fork along the circumferential direction, the inner fork teeth and the outer fork teeth are arranged between two adjacent locking rollers and are staggered along the circumferential direction, bidirectional spiral rolling grooves are respectively processed on the opposite end surfaces of the inner shifting fork and the outer shifting fork. The invention has bidirectional self-locking function and can transmit torque positively and negatively.
Description
Technical field
The present invention relates to Automotive Steering Technology field.
Background technology
Steering-by-wire is the new technology in one, Automotive Steering Technology field, in order to realize this technology, need to solve a technology
Problem：I.e. in steering normal work, how to make steering column and steering gear is to disconnect, and is turned to by line traffic control mechanism controls
Device is turned to；And when turning to abnormal, steering column can again be connected automatically immediately with steering gear, revert to the machinery of human hand operation
Turn to, it is ensured that driving safety.
The content of the invention
The technical problems to be solved by the invention just there is provided a kind of electromagnetic type overdrive clutch of achievable two-way operation
Device.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that：A kind of bidirectional electromagnetic freewheel clutch, bag
Include the casing for being provided with case lid and the bidirectional cam connecting shaft penetrated in casing, outer hub connecting shaft, the bidirectional cam connection
Axle is connected with steering column, and the outer hub connecting shaft is connected with steering gear, the shaft end insertion of the bidirectional cam connecting shaft
The axis hole of outer hub connecting shaft, the bidirectional cam connecting shaft is circumferentially evenly equipped with several cam surfaces, the outer hub connecting shaft
Axis hole it is cylindrical where bidirectional cam connecting shaft cam surface be provided with inner ring locking face, the cam surface is rolled provided with locking
Preloading spring is provided between son, and two adjacent locking rollers, the clutch is additionally provided with spiral and becomes motion shifting fork mechanism, the spiral
Becoming motion shifting fork mechanism includes interior shift fork, outer shift fork, and the interior shift fork is set by case lid side, and the interior shift fork is evenly distributed
There is axially projecting interior prong, the outer shift fork is evenly distributed axially projecting outer tine, the interior prong and outer tine
Stagger between two adjacent locking rollers and circumferentially, the interior fork, the opposing end surface of outer fork are machined with two-way respectively
It is provided with spiral slot rolling, the two-way spiral groove on steel ball, the case lid and electromagnetic excitation coil is installed；Electromagnetic excitation coil electricity
After produce magnetic field, and acting on is axially moveable interior shift fork on interior shift fork, steel ball rolled in bidirectional screw slot rolling make in dial
The axial movement of fork becomes the circumference relative separation motion between interior shift fork and outer fork, and interior prong, outer tine are round about
Two adjacent locking rollers are promoted to be moved along cam surface and compress preloading spring, so that clutch is unlocked；When electromagnetic excitation line
During circle power-off, no magneticaction, spiral becomes motion shifting fork mechanism failure, and locking roller engages under the thrust of preloading spring
Between cam surface and inner ring locking face, bidirectional cam connecting shaft and outer hub connecting shaft are locked in together.
It is preferred that, the bidirectional cam connecting shaft it is cylindrical between adjacent two cam surface be provided with spring locating surface, it is described
Preloading spring is positioned on spring locating surface by clamp button of the spring.
It is preferred that, the interior prong, outer tine are provided with the circular arc wedge surface for promoting locking roller to be moved along cam surface.
It is preferred that, the locking roller is circumferentially with 6 along bidirectional cam connecting shaft.
The technical solution adopted by the present invention, locking roller, preloading spring, cam surface and inner ring locking face are constituted from lock machine
Structure, can positive and negative transmission moment of torsion with bidirectional self-locking function.
After electromagnetic excitation coil electricity, motion shifting fork mechanism linear motion is become using the Magnetic Control spiral of electromagnet,
Become the bidirectional screw roller path structure for moving shifting fork mechanism itself by spiral again, spiral is become to the linear motion for moving shifting fork mechanism
The circumference relative separation motion of inside and outside fork is converted into, self-locking mechanism is unlocked.When electromagnetic excitation coil blackout, no magnetic force
Effect, spiral becomes motion shifting fork mechanism failure, and self-locking mechanism effect, locking roller is fastened under the thrust of preloading spring
Between cam surface and inner ring locking face, bidirectional cam connecting shaft and outer hub connecting shaft are locked in together.
Therefore, in steering normal work, steering column is to disconnect with steering gear, when turning to abnormal, can be made again
Steering column is connected automatically immediately with steering gear, reverts to the mechanical steering of human hand operation, it is ensured that driving safety.
To sum up, beneficial effects of the present invention are：
1st, clever structure, compact and portable.
2nd, using locking roller, rolling friction, efficiency high is worn and torn small.
3rd, self-locking mechanism uses many rollers, and bidirectional self-locking realizes that both forward and reverse directions transmit moment of torsion, no-idle running.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and detailed description：
Fig. 1 is the structural representation of bidirectional electromagnetic freewheel clutch of the present invention；
Fig. 2 is diagrammatic cross-section at Fig. 1 B-B；
Fig. 3 is the structural representation of outer shift fork；
Fig. 4 is Fig. 3 right view；
Fig. 5 is close-up schematic view at Fig. 3 A；
Fig. 6 is the structural representation of interior shift fork.
Embodiment
The technical scheme of the embodiment of the present invention is explained and illustrated with reference to the accompanying drawing of the embodiment of the present invention, but under
Embodiment only the preferred embodiments of the present invention are stated, and it is not all.Based on the embodiment in embodiment, those skilled in the art
Other embodiment is obtained on the premise of creative work is not made, protection scope of the present invention is belonged to.
As shown in figure 1, a kind of bidirectional electromagnetic freewheel clutch, including the casing 1 of case lid 11 is installed and case is penetrated
Bidirectional cam connecting shaft 3, outer hub connecting shaft 4 in body 1, the bidirectional cam connecting shaft 3 are connected with steering column, described outer
Hub connecting shaft 4 is connected with steering gear, and the shaft end of the bidirectional cam connecting shaft 3 is inserted in the axis hole of outer hub connecting shaft shaft end.
Wherein, as depicted in figs. 1 and 2, bidirectional cam connecting shaft 3 is circumferentially evenly equipped with several cam surfaces 31, described
The axis hole of outer hub connecting shaft is cylindrical where bidirectional cam connecting shaft cam surface to be provided with inner ring locking face 41, the cam surface 31
Provided with locking preloading spring 33 is provided between roller 32, and two adjacent locking rollers 32.
As depicted in figs. 1 and 2, the clutch is additionally provided with spiral change motion shifting fork mechanism 2, and the spiral becomes motion fork machine
Structure 2 includes being enclosed on the interior shift fork 21 that order is set cylindrical above and vertically of bidirectional cam connecting shaft 3, outer shift fork 22, interior shift fork outside
21 are set by the side of case lid 11.
As shown in Figures 3 to 6, the interior fork 21, the opposing end surface of outer fork 22 are machined with bidirectional screw slot rolling respectively,
Water jacket 221 on inside groove 211 on i.e. interior fork 21, outer shift fork 22.Steel ball 23, described interior group are provided with the two-way spiral groove
Fork 21 is evenly distributed axially projecting interior prong 212, and the outer shift fork 22 is evenly distributed axially projecting outer tine
223, outer shift fork 22 has been evenly distributed outer lug 222, and outer tine 223 is axially extended away from the outer radial outer end of lug 222.
The interior prong 212 and outer tine 223 are between two adjacent locking rollers 32 and circumferentially stagger.
Wherein, the flank of tooth that interior prong 212, outer tine 223 are acted on locking roller 32 is circular arc wedge surface, both ensures to understand
Effect is locked, prevents roller from escaping from working flank again, the fatal risk such as dead point occurs.
Electromagnet is installed, electromagnet includes electromagnetic excitation coil 12, electromagnet base, when steering is normal on case lid 11
During work, electromagnetic excitation coil 12 is powered, clutch separation, steering column is disconnected with steering gear, realizes that advanced line traffic control turns
To function；When steering occurs abnormal, electromagnetic excitation coil 12 is powered off, and clutch closes, and makes steering column and steering gear
Connection, recovers mechanical steering operation, it is ensured that driving safety.
Specifically, electromagnetic excitation coil 12 produces magnetic field after being powered, and acts on and make the interior edge of shift fork 21 on interior shift fork 21
Axially moved to the direction of case lid 11, and outer fork 22 has been withstood on electromagnet base due to end face, immovable, the Zhi Nengyuan in axial direction
All rotary motions.Steel ball 23 is rolled in bidirectional screw slot rolling makes the axial movement of interior shift fork 21 become interior shift fork 21 and outer fork
Circumference relative separation motion between 22, interior prong 212, outer tine 223 promote two adjacent locking rollers 32 round about
Moved along cam surface 31 and compress preloading spring 33, so that clutch is unlocked, when electromagnetic excitation coil 12 is powered off, no magnetic force
Effect, spiral becomes motion shifting fork mechanism 2 and failed, and locking roller 32 is fastened on cam surface 31 under the thrust of preloading spring 33
Between inner ring locking face 41, bidirectional cam connecting shaft 3 and outer hub connecting shaft 4 are locked in together.
In addition, in the present embodiment, as shown in Fig. 2 locking roller 31 is circumferentially with 6 along bidirectional cam connecting shaft 3, it is right
The cam surface of cam surface 31 answered also is provided with 6, and preloading spring 33 is provided with 3.The angle of cam surface 31 is relevant with coefficient of friction,
Ensure to produce the angle under maximum friction coefficient, be exactly angle design principle.
The cylindrical of bidirectional cam connecting shaft 3 is provided with spring locating surface between adjacent two cam surface 31, and preloading spring 33 leads to
Cross clamp button of the spring to be positioned on spring locating surface, preloading spring 33 is circumferentially compressed or is loosened, but can not move axially.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, and is familiar with
The those skilled in the art should be understood that the present invention includes but is not limited to accompanying drawing and interior described in embodiment above
Hold.The modification of any function and structure principle without departing from the present invention is intended to be included in the scope of claims.
Claims (4)
1. a kind of bidirectional electromagnetic freewheel clutch, including the casing of case lid and the bidirectional cam company penetrated in casing are installed
Spindle, outer hub connecting shaft, the bidirectional cam connecting shaft are connected with steering column, and the outer hub connecting shaft is connected with steering gear
Connect, it is characterised in that：The axis hole of outer hub connecting shaft, the bidirectional cam connecting shaft are inserted in the shaft end of the bidirectional cam connecting shaft
Several cam surfaces are circumferentially evenly equipped with, the axis hole of the outer hub connecting shaft surround bidirectional cam connecting shaft cam surface institute outside
Circle is provided with inner ring locking face, and the cam surface, should provided with preloading spring is provided between locking roller, and two adjacent locking rollers
Clutch is additionally provided with spiral change motion shifting fork mechanism, and the spiral, which becomes motion shifting fork mechanism, includes interior shift fork, outer shift fork, described interior
Shift fork is set by case lid side, and the interior shift fork is evenly distributed axially projecting interior prong, and the outer shift fork is circumferentially equal
Axially projecting outer tine is furnished with, the interior prong and outer tine are between two adjacent locking rollers and circumferentially stagger, institute
State interior fork, the opposing end surface of outer fork is machined with bidirectional screw slot rolling respectively, steel ball is provided with the two-way spiral groove, it is described
Electromagnetic excitation coil is installed on case lid；Magnetic field is produced after electromagnetic excitation coil electricity, and acts on and makes interior shift fork edge on interior shift fork
Axial movement, steel ball is rolled in bidirectional screw slot rolling makes the axial movement of interior shift fork become circle between interior shift fork and outer fork
Week relative disengaging movement, interior prong, outer tine promote two adjacent locking rollers to move and compress along cam surface round about
Preloading spring, so that clutch is unlocked；When electromagnetic excitation coil blackout, no magneticaction, spiral becomes motion shifting fork mechanism
Failure, locking roller is fastened under the thrust of preloading spring between cam surface and inner ring locking face, and bidirectional cam is connected
Spindle and outer hub connecting shaft are locked in together.
2. a kind of bidirectional electromagnetic freewheel clutch according to claim 1, it is characterised in that：The bidirectional cam connection
The cylindrical of axle is provided with spring locating surface between adjacent two cam surface, and the preloading spring is positioned at spring by clamp button of the spring to be determined
On plane.
3. a kind of bidirectional electromagnetic freewheel clutch according to claim 1, it is characterised in that：The interior prong, outer fork
Tooth is provided with the circular arc wedge surface for promoting locking roller to be moved along cam surface.
4. a kind of bidirectional electromagnetic freewheel clutch according to claim 1, it is characterised in that：The locking roller edge is double
6 are circumferentially with to cam connecting shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710232772.1A CN106979257A (en) | 2017-04-11 | 2017-04-11 | Bidirectional electromagnetic overrunning clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710232772.1A CN106979257A (en) | 2017-04-11 | 2017-04-11 | Bidirectional electromagnetic overrunning clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106979257A true CN106979257A (en) | 2017-07-25 |
Family
ID=59344282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710232772.1A Pending CN106979257A (en) | 2017-04-11 | 2017-04-11 | Bidirectional electromagnetic overrunning clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106979257A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882893A (en) * | 2017-12-08 | 2018-04-06 | 龙口中宇热管理系统科技有限公司 | A kind of bidirectional overriding type clutch controlled using electromagnetic attraction |
| CN111637810A (en) * | 2020-04-30 | 2020-09-08 | 四川航天川南火工技术有限公司 | Quick change device for thread connection and disconnection detection equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009293654A (en) * | 2008-06-03 | 2009-12-17 | Ntn Corp | Rotation transmitting device |
| US20140345999A1 (en) * | 2011-12-13 | 2014-11-27 | Ntn Corporation | Rotation transmission device |
| CN104220774A (en) * | 2012-04-02 | 2014-12-17 | Ntn株式会社 | Rotation transmitting device |
| CN104220775A (en) * | 2012-03-26 | 2014-12-17 | Ntn株式会社 | Rotation transmitting member |
| CN104595381A (en) * | 2015-01-26 | 2015-05-06 | 吉林大学 | Bidirectional controllable overrunning clutch |
| CN104903605A (en) * | 2013-01-30 | 2015-09-09 | Ntn株式会社 | Rotation transmitting device |
| CN206754224U (en) * | 2017-04-11 | 2017-12-15 | 浙江万达汽车方向机股份有限公司 | A kind of bidirectional electromagnetic freewheel clutch |
-
2017
- 2017-04-11 CN CN201710232772.1A patent/CN106979257A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009293654A (en) * | 2008-06-03 | 2009-12-17 | Ntn Corp | Rotation transmitting device |
| US20140345999A1 (en) * | 2011-12-13 | 2014-11-27 | Ntn Corporation | Rotation transmission device |
| CN104220775A (en) * | 2012-03-26 | 2014-12-17 | Ntn株式会社 | Rotation transmitting member |
| CN104220774A (en) * | 2012-04-02 | 2014-12-17 | Ntn株式会社 | Rotation transmitting device |
| CN104903605A (en) * | 2013-01-30 | 2015-09-09 | Ntn株式会社 | Rotation transmitting device |
| CN104595381A (en) * | 2015-01-26 | 2015-05-06 | 吉林大学 | Bidirectional controllable overrunning clutch |
| CN206754224U (en) * | 2017-04-11 | 2017-12-15 | 浙江万达汽车方向机股份有限公司 | A kind of bidirectional electromagnetic freewheel clutch |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882893A (en) * | 2017-12-08 | 2018-04-06 | 龙口中宇热管理系统科技有限公司 | A kind of bidirectional overriding type clutch controlled using electromagnetic attraction |
| CN107882893B (en) * | 2017-12-08 | 2023-06-13 | 龙口中宇热管理系统科技有限公司 | Bidirectional overrunning clutch controlled by electromagnetic attraction force |
| CN111637810A (en) * | 2020-04-30 | 2020-09-08 | 四川航天川南火工技术有限公司 | Quick change device for thread connection and disconnection detection equipment |
| CN111637810B (en) * | 2020-04-30 | 2021-11-16 | 四川航天川南火工技术有限公司 | Quick change device for thread connection and disconnection detection equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104838164B (en) | Taper surface friction overdrive clutch | |
| WO2015012053A1 (en) | Pulley device with embedded unidirectional clutch | |
| CN102297216B (en) | Wedge-type bi-directional overrunning clutch | |
| US6662921B2 (en) | Wheel steering apparatus | |
| CN103379983A (en) | Hand-power tool with a reduction gear | |
| CN101898510A (en) | Locking differential | |
| KR20170058411A (en) | Compound planetary friction drive | |
| CN106979257A (en) | Bidirectional electromagnetic overrunning clutch | |
| US11708898B2 (en) | Gear shifting mechanism, gearbox, powertrain, and electric vehicle | |
| CN206754224U (en) | A kind of bidirectional electromagnetic freewheel clutch | |
| JP2000152557A5 (en) | ||
| CN103277425A (en) | Double-screw overrunning clutch | |
| CN102758859A (en) | Friction type overrunning clutch | |
| US6902046B1 (en) | High performance sprag clutch assembly | |
| WO2023273304A1 (en) | Variable-torque-type overload protection device, and overload prevention electric motor having same | |
| CN106050977A (en) | Novel sliding block type bidirectional overrunning clutch | |
| JP2013108600A (en) | Friction roller type speed reducer | |
| CN116490705A (en) | Power transmission device | |
| GB2472838A (en) | Dog drive | |
| KR100784045B1 (en) | Continuous variable transmission | |
| CN211117522U (en) | Clutch device and planetary gearbox | |
| CN202510683U (en) | Two-gear variable speed shaft for electric vehicle | |
| CN214267876U (en) | Central electric drive transmission sensing self-adaptive variable speed electric drive wheel hub | |
| CN220354280U (en) | One-way clutch integrated with internal gear | |
| CN111890920B (en) | Wheel end power clutch device of belt wheel edge speed reduction front drive axle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 311258 No. 28, Xiangshan Road, Wenyan street, Xiaoshan District, Hangzhou City, Zhejiang Province Applicant after: ZHEJIANG WANDA STEERING GEAR Co.,Ltd. Address before: No.28 Xiangshan Road, Wenyan Town, Xiaoshan District, Hangzhou City, Zhejiang Province Applicant before: ZHEJIANG WANDA STEERING GEAR CO.,LTD. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170725 |