CN206754224U - A kind of bidirectional electromagnetic freewheel clutch - Google Patents
A kind of bidirectional electromagnetic freewheel clutch Download PDFInfo
- Publication number
- CN206754224U CN206754224U CN201720373929.8U CN201720373929U CN206754224U CN 206754224 U CN206754224 U CN 206754224U CN 201720373929 U CN201720373929 U CN 201720373929U CN 206754224 U CN206754224 U CN 206754224U
- Authority
- CN
- China
- Prior art keywords
- shift fork
- bidirectional
- connecting shaft
- interior
- cam
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of bidirectional electromagnetic freewheel clutch, bidirectional cam connecting shaft is circumferentially evenly equipped with several cam surfaces, 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, cam surface is provided with locking roller, and two it is adjacent locking roller between be provided with preloading spring, the clutch is additionally provided with spiral and becomes motion shifting fork mechanism, spiral, which becomes motion shifting fork mechanism, includes interior shift fork, outer shift fork, interior shift fork is set by case lid side, interior shift fork is evenly distributed axially projecting interior prong, outer shift fork is evenly distributed axially projecting outer tine, interior prong and outer tine are between two adjacent locking rollers and circumferentially stagger, interior shift fork, the opposing end surface of outer shift fork is machined with bidirectional screw slot rolling respectively, steel ball is provided with two-way spiral groove, electromagnetic excitation coil is installed on case lid.The utility model has bidirectional self-locking function, can positive and negative transmission moment of torsion.
Description
Technical field
It the utility model is related 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 turns to；And when turning to abnormal, and can makes steering column be connected automatically immediately with steering gear, reverts to the machinery of human hand operation
Turn to, ensure driving safety.
Utility model content
Technical problem to be solved in the utility model just there is provided a kind of electromagnetic type of achievable two-way operation and surmount
Clutch.
In order to solve the above technical problems, the utility model adopts the following technical scheme that：A kind of bidirectional electromagnetic overdrive clutch
Device, including the casing of case lid and the bidirectional cam connecting shaft penetrated in casing, outer hub connecting shaft, the bidirectional cam are installed
Connecting shaft is connected with steering column, and the outer hub connecting shaft is connected with steering gear, the shaft end of the bidirectional cam connecting shaft
The axis hole of the outer hub connecting shaft of insertion, the bidirectional cam connecting shaft are circumferentially evenly equipped with several cam surfaces, and the outer hub connects
The axis hole of spindle is cylindrical where bidirectional cam connecting shaft cam surface to be provided with inner ring locking face, and the cam surface is provided with locking
Roller, and preloading spring is provided between two adjacent locking rollers, the clutch is additionally provided with spiral and becomes motion shifting fork mechanism, the spiral shell
Rotation, which becomes 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 circumferentially equal
Axially projecting interior prong is furnished with, the outer shift fork is evenly distributed axially projecting outer tine, the interior prong and outer fork
Tooth is between two adjacent locking rollers and circumferentially staggers, and the interior shift fork, the opposing end surface of outer shift fork are machined with double respectively
To spiral slot rolling, steel ball is provided with the two-way spiral groove, electromagnetic excitation coil is installed on the case lid；Electromagnetic excitation coil leads to
Magnetic field is produced after electricity, and acting on interior shift fork is axially moveable interior shift fork, in steel ball is rolled in bidirectional screw slot rolling and made
The axial movement of shift fork becomes the circumference relative separation motion between interior shift fork and outer shift fork, and interior prong, outer tine are to phase negative side
To promoting two adjacent locking rollers to be moved along cam surface and compressing preloading spring, so that clutch unlocks；Work as electromagnetic excitation
During coil blackout, no magneticaction, spiral becomes motion shifting fork mechanism failure, and locking roller blocks under the thrust of preloading spring
Close between cam surface and inner ring locking face, bidirectional cam connecting shaft and outer hub connecting shaft are locked in together.
Preferably, the cylindrical of the bidirectional cam connecting shaft is provided with spring locating surface between adjacent two cam surface, described
Preloading spring is positioned on spring locating surface by clamp button of the spring.
Preferably, the interior prong, outer tine are provided with the circular arc wedge surface for promoting locking roller to be moved along cam surface.
Preferably, the locking roller is circumferentially with 6 along bidirectional cam connecting shaft.
The technical solution adopted in the utility model, locking roller, preloading spring, cam surface and the composition self-locking of inner ring locking face
Mechanism, there is bidirectional self-locking function, can positive and negative transmission moment of torsion.
After electromagnetic excitation coil electricity, become motion shifting fork mechanism linear motion using the Magnetic Control spiral of electromagnet,
Become the bidirectional screw roller path structure of motion shifting fork mechanism itself by spiral again, spiral is become to the linear motion of motion shifting fork mechanism
The circumference relative separation motion of inside and outside shift fork is converted into, self-locking mechanism is unlocked.When electromagnetic excitation coil blackout, no magnetic force
Effect, spiral become motion shifting fork mechanism failure, self-locking mechanism effect, and 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, and when turning to abnormal, and can makes
Steering column is connected automatically immediately with steering gear, reverts to the mechanical steering of human hand operation, ensures driving safety.
To sum up, the beneficial effects of the utility model are：
1st, clever structure, compact and portable.
2nd, it is small using locking roller, rolling friction, efficiency high, abrasion.
3rd, self-locking mechanism uses more rollers, bidirectional self-locking, realizes that both forward and reverse directions transmit moment of torsion, no-idle running.
Brief description of the drawings
The utility model is further described with reference to the accompanying drawings and detailed description：
Fig. 1 is the structural representation of the utility model bidirectional electromagnetic freewheel clutch；
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 utility model embodiment is explained with reference to the accompanying drawing of the utility model embodiment and
Illustrate, but following embodiments are only preferred embodiment of the present utility model, and it is not all.Based on the embodiment in embodiment,
Those skilled in the art obtain other embodiment on the premise of creative work is not made, and belong to of the present utility model
Protection domain.
As shown in figure 1, a kind of bidirectional electromagnetic freewheel clutch, including the casing 1 of case lid 11 is installed and penetrates case
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
Locking roller 32 is provided with, and preloading spring 33 is provided between 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 shift 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 shift fork 21, the opposing end surface of outer shift fork 22 are machined with bidirectional screw slot rolling respectively,
Inside groove 211 on i.e. interior shift fork 21, the water jacket 221 on outer shift fork 22.Be provided with steel ball 23 in the two-way spiral groove, it is described in group
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 axially extends from the outer radial outer end of lug 222
Go.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 act 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 powers off, and clutch closes, and makes steering column and steering gear
Connection, recover mechanical steering operation, ensure driving safety.
Specifically, electromagnetic excitation coil 12 produces magnetic field after being powered, and acts on interior shift fork 21 and make the interior edge of shift fork 21
Axially moved to the direction of case lid 11, and outer shift fork 22 has been because end face has been withstood on electromagnet base, axial immovable, Zhi Nengyuan
All rotary motions.Steel ball 23 rolls in bidirectional screw slot rolling makes the axial movement of interior shift fork 21 become interior shift fork 21 and outer group
Circumference relative separation motion between fork 22, interior prong 212, outer tine 223 promote two adjacent locking rollers round about
32 move along cam surface 31 and compress preloading spring 33, so that clutch unlocks, when electromagnetic excitation coil 12 powers off, no magnetic
Power acts on, and spiral becomes motion shifting fork mechanism 2 and failed, and locking roller 32 is fastened on cam surface under the thrust of preloading spring 33
Between 31 and 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 is logical
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.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, it is familiar with the those skilled in the art and should be understood that the utility model includes but is not limited to accompanying drawing and above specific embodiment party
Content described in formula.Any modification without departing from function and structure principle of the present utility model is intended to be included in claims
Scope in.
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 is provided with locking roller, and is provided with preloading spring between two adjacent locking rollers, should
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 shift fork, the opposing end surface of outer shift fork is machined with bidirectional screw slot rolling respectively, is provided with steel ball in the two-way spiral groove, described
Electromagnetic excitation coil is installed on case lid；Magnetic field is produced after electromagnetic excitation coil electricity, and acts on interior shift fork and makes interior shift fork edge
Axial movement, steel ball rolls in bidirectional screw slot rolling makes the axial movement of interior shift fork become circle between interior shift fork and outer shift 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 unlocks；When electromagnetic excitation coil blackout, no magneticaction, spiral becomes motion shifting fork mechanism
Failure, locking roller are fastened between cam surface and inner ring locking face under the thrust of preloading spring, bidirectional cam are connected
Spindle and outer hub connecting shaft are locked in together.
A kind of 2. 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.
A kind of 3. 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.
A kind of 4. 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 |
|---|---|---|---|
| CN201720373929.8U CN206754224U (en) | 2017-04-11 | 2017-04-11 | A kind of bidirectional electromagnetic freewheel clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720373929.8U CN206754224U (en) | 2017-04-11 | 2017-04-11 | A kind of bidirectional electromagnetic freewheel clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206754224U true CN206754224U (en) | 2017-12-15 |
Family
ID=60612959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720373929.8U Active CN206754224U (en) | 2017-04-11 | 2017-04-11 | A kind of bidirectional electromagnetic freewheel clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206754224U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979257A (en) * | 2017-04-11 | 2017-07-25 | 浙江万达汽车方向机股份有限公司 | Bidirectional electromagnetic overrunning clutch |
-
2017
- 2017-04-11 CN CN201720373929.8U patent/CN206754224U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979257A (en) * | 2017-04-11 | 2017-07-25 | 浙江万达汽车方向机股份有限公司 | Bidirectional electromagnetic overrunning clutch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110203067B (en) | Mechanical double-overrunning clutch self-adaptive automatic speed changing bridge | |
| CN104838164A (en) | Conical surface friction type overrunning clutch | |
| CN102297216B (en) | Wedge-type bi-directional overrunning clutch | |
| CN103946587A (en) | Electrically powered linear actuator | |
| CN104024695A (en) | Electric linear actuator | |
| CN206754224U (en) | A kind of bidirectional electromagnetic freewheel clutch | |
| CN106979257A (en) | Bidirectional electromagnetic overrunning clutch | |
| CN203548785U (en) | Rotary driving device driven by double motors | |
| CN113124154B (en) | Gear shifting mechanism, transmission, power assembly and electric vehicle | |
| EP3128207B1 (en) | Beveled disc type stepless transmission | |
| CN202715833U (en) | Axial locking mechanism for machine tool spindle | |
| CN201561052U (en) | Flange-type rolling spline pair | |
| WO2011140821A1 (en) | Continuously variable transmission | |
| CN209324974U (en) | Breakaway-element gear-box | |
| CN209781582U (en) | Ultrashort integral type planetary reducer | |
| CN206017688U (en) | Force mechanism in self shifter axle | |
| CN116490705A (en) | Power transmission device | |
| CN111890920B (en) | Wheel end power clutch device of belt wheel edge speed reduction front drive axle | |
| CN202510683U (en) | Two-gear variable speed shaft for electric vehicle | |
| KR100784045B1 (en) | Continuous variable transmission | |
| CN218440587U (en) | Friction plate type two-gear speed reducer | |
| CN218633666U (en) | Non-contact variable speed ratio power output mechanism | |
| CN203624906U (en) | Winch reversing mechanism | |
| CN218542934U (en) | Integrated roller screw bearing pair | |
| CN113958626B (en) | Unidirectional spiral coupling suitable for speed changer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 311258 No. 28, Xiangshan Road, Wenyan street, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee after: ZHEJIANG WANDA STEERING GEAR Co.,Ltd. Address before: No.28 Xiangshan Road, Wenyan Town, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG WANDA STEERING GEAR CO.,LTD. |