CN105422686A - Cam wedge block type one-way clutch - Google Patents
Cam wedge block type one-way clutch Download PDFInfo
- Publication number
- CN105422686A CN105422686A CN201510879398.5A CN201510879398A CN105422686A CN 105422686 A CN105422686 A CN 105422686A CN 201510879398 A CN201510879398 A CN 201510879398A CN 105422686 A CN105422686 A CN 105422686A
- Authority
- CN
- China
- Prior art keywords
- cam
- inner ring
- outer shroud
- ring
- outer ring
- 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
Landscapes
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Abstract
The invention discloses a cam wedge block type one-way clutch. The cam wedge block type one-way clutch comprises an outer ring, an inner ring, cams and a baffle. The outer ring and the inner ring are both of ring structures. A key groove is further formed in the inner surface of the inner ring, and the inner ring is installed in the outer ring. The baffle is an annular steel plate and is fixed to one end of the outer ring. The cam wedge block type one-way clutch is characterized in that the inner ring is arranged in an inner hole of the outer ring and is matched with the outer ring in a clearance fit manner; a plurality of cam installing grooves which are evenly distributed are formed in the outer wall of the inner ring, each cam installing groove corresponds to one cam, the cams are hinged to the side walls of the cam installing grooves, and hinged shafts of the cams are further provided with torsion springs; and the cams are tightly attached to the inner wall of the outer ring. The product structure is simplified, the lift of the clutch is effectively increased by adopting cam wedge blocks, and the slipping phenomenon is prevented.
Description
Technical field
The present invention relates to one, particularly relate to a kind of cam wedge formula overrunning clutch.
Background technique
When automobile engine starting, first will be driven the flywheel turns of motor by starter motor, then motor could start; But after engine ignition starts, the rotating speed of its flywheel can surmount rapidly the rotating speed of Starter, the drive Starter reverse in order to avoid motor rotates, therefore between motor and starter motor, one-way element is provided with, be free wheel device again, therefore, exceed the rotating speed of Starter at the rotating speed of motor after, one-way element by separated, thus avoids driven by engine Starter to rotate.
Also one-way element can be used when shifting gears, when by top gear shift to low gear, because output shaft just departs from high gear, so output shaft still has a higher rotating speed, therefore after output shaft is connected with low speed gear, making output shaft and low speed gear have an identical speed just needs output shaft to have a moderating process, otherwise output shaft will oppositely drive low speed gear to rotate, or make low speed gear occur beating tooth phenomenon, thus impact is formed to gear, make gear damaged rapidly, therefore in electric motor car, also one-way element is provided with, prevent output shaft from oppositely driving low speed gear.
Existing a kind of free wheel device is made up of inner ring, outer ring, retainer, spring and voussoir, and not only structure is more complicated, and also normal because of bearing capacity deficiency, voussoir skids, and causes clutch to lose efficacy.
Summary of the invention
The object of the invention is easily to skid the problem causing clutch to lose efficacy, because herein is provided a kind of cam wedge formula overrunning clutch for solving prior art middle roller.
Base case cam wedge formula overrunning clutch of the present invention, comprises outer shroud, inner ring, cam, baffle plate; Described outer shroud and inner ring are circle structure, and the internal surface of described inner ring is also provided with keyway, and inner ring is arranged in outer shroud; Described baffle plate is steel ring plate, and is fixed on one end of outer shroud; It is characterized in that, described inner ring is arranged in the endoporus of described outer shroud, and inner ring and outer shroud are Spielpassung; The outer wall of described inner ring is provided with some equally distributed cam mounting grooves, and the corresponding described cam of each cam mounting groove, cam is hinged on the sidewall of cam mounting groove, and the hinging shaft of cam is also provided with torsion spring; And cam is adjacent to the inwall of outer shroud.
In this base case, outer shroud is fixedly connected with low speed gear, and inner ring is connected with output axle key; During work, low speed gear will drive outer shroud to rotate, if the rotating speed of output shaft is lower than low speed gear rotating speed, then low speed gear is as driving link, and low speed gear will be made to rotate counterclockwise relative to output shaft; Due to the effect of torsion spring, cam is adjacent to outer shroud inwall, and when therefore outer shroud rotates, the surface of cam will be subject to frictional force, under the effect of this frictional force, cam also will rotate counterclockwise, but when cam rotates counterclockwise, and it is tighter that the internal surface with outer shroud is fitted by the surface of cam, therefore the frictional force between cam and outer shroud will become large, to such an extent as to outer shroud can not relative to cam slide, then outer shroud will drive inner ring to rotate, and namely low speed gear drives output shaft rotation.When the rotating speed of output shaft exceedes low speed gear, then output shaft is as driving link, then relative and inner ring are had the trend rotated clockwise by outer shroud, now cam the clockwise under influence in frictional force is rotated, namely the active force of the surface of cam and the inwall of outer shroud will reduce, therefore the frictional force of cam and outer shroud will reduce, thus inner ring can not drive outer shroud to rotate.
Because cam is hinged on the periphery of inner ring in this programme, therefore cam there will not be crooked phenomenon, and cam has the effect of the frictional force increasing cam and outer shroud along with the rotation of outer shroud, so not easily there is skidding, thus has higher reliability; The present invention does not need retainer in addition, simplifies product structure, thus is easy to processing.
Preferred version one, as the further optimization to base case, described cam mounting groove is provided with six altogether; Described cam mounting groove is too much, then need to reduce cam size, to meet installing space, but cam is too little, be unfavorable for processing and assembling, and cam mounting groove is very few, then cam also needs corresponding minimizing, then the power that each cam is born will increase, therefore easily there is bending deflection in the hinging shaft of cam, thus form potential safety hazard.
Preferred version two, as the further optimization to base case, described cam mounting groove is curve bath, and described cam is adjacent to the curved wall of cam mounting groove; Cam mounting groove is set to curve bath, cam can be made can also to be adjacent to the curved wall of curve bath while the inwall with outer shroud is adjacent to, and the area of contact of curved wall and cam face is larger, therefore be conducive to sharing the load that cam is subject to, thus avoid the hinging shaft of cam to bear too much load.
Preferred version three, as the further optimization to base case, described baffle plate is by circumferentially equally distributed screw and described outer shroud are fixed; Baffle plate is provided with by screw and is beneficial to dismounting, thus is convenient to repair.
Preferred version four, as the further optimization to base case, the keyway on described interior ring inner surface is spline; Inner ring and output shaft adopt spline fitted to be conducive to installing.
Accompanying drawing explanation
Fig. 1 is the structural drawing of cam wedge formula overrunning clutch embodiment;
Fig. 2 is the sectional drawing of cam wedge formula overrunning clutch embodiment outer shroud, inner ring and cam engagement.
Embodiment
Below by embodiment, the present invention is further detailed explanation:
Reference character in Figure of description comprises: outer shroud 1, baffle plate 2, inner ring 3, cam 4, low speed gear 5, output shaft 6, curve bath 31, torsion spring 41.
Embodiment is substantially as shown in accompanying drawing 1, Fig. 2: cam wedge formula overrunning clutch comprises outer shroud 1, inner ring 3, cam 4, baffle plate 2.Wherein, outer shroud 1 and inner ring 3 are circle structure, and outer shroud 1 is connected with low speed gear 5, and the internal surface of inner ring 3 is also provided with spline, and to be connected with output shaft 6, and inner ring 3 is arranged in outer shroud 1; Baffle plate 2 is steel ring plate, and by circumferentially equally distributed screw and outer shroud 1 are fixed.Inner ring 3 is arranged in the endoporus of outer shroud 1, and is Spielpassung with inner ring 3 and outer shroud 1; The outer wall of inner ring 3 is provided with six equally distributed curve baths 31, the corresponding cam 4 of each curve bath 31, cam 4 is hinged on the sidewall of curve bath 31, and the hinging shaft of cam 4 is also provided with torsion spring 41, is pressed on by roller on the curved wall of curve bath 31; In addition when outer shroud 1 and inner ring 3 do not relatively rotate, cam 4 is clamped between outer shroud 1 and inner ring 3.
As shown in Figure 2, during work, drive outer shroud 1 rotates by low speed gear 5, if when the rotating speed of output shaft 6 is lower than low speed gear 5, then low speed gear 5 will rotate counterclockwise relative to output shaft 6, due to the effect of torsion spring 41, cam 4 is clamped between outer shroud 1 and inner ring 3, therefore when outer shroud 1 rotates, will the surface of attrition cam 4, under the effect of this frictional force, cam 4 also will rotate counterclockwise, but when cam 4 rotates counterclockwise, the surface of cam 4 by with outer shroud 1 internal surface and inner ring 3 the arcuate flanks of curve bath 31 fit tighter, therefore the frictional force between cam 4 and outer shroud 1 will become large, to such an extent as to outer shroud 1 can not slide relative to cam 4, then drive inner ring 3 is rotated by outer shroud 1, namely low speed gear 5 drives output shaft 6 to rotate.When the rotating speed of output shaft 6 exceedes low speed gear 5, then relative and inner ring 3 rotate clockwise by outer shroud 1, now cam 4 the clockwise under influence in frictional force is rotated, namely the surface of cam 4 just has the trend be separated with the inwall of outer shroud 1 with the curved wall of curve bath 31, therefore cam 4 will reduce with the frictional force of outer shroud 1, thus inner ring 3 can not drive outer shroud 1 to rotate.
Claims (5)
1. a cam wedge formula overrunning clutch, comprises outer shroud, inner ring, cam, baffle plate; Described outer shroud and inner ring are circle structure, and the internal surface of described inner ring is also provided with keyway, and inner ring is arranged in outer shroud; Described baffle plate is steel ring plate, and is fixed on one end of outer shroud; It is characterized in that, described inner ring is arranged in the endoporus of described outer shroud, and inner ring and outer shroud are Spielpassung; The outer wall of described inner ring is provided with some equally distributed cam mounting grooves, and the corresponding described cam of each cam mounting groove, cam is hinged on the sidewall of cam mounting groove, and the hinging shaft of cam is also provided with torsion spring; And cam is adjacent to the inwall of outer shroud.
2. cam wedge formula overrunning clutch according to claim 1, is characterized in that, described cam mounting groove is provided with six altogether.
3. cam wedge formula overrunning clutch according to claim 1, is characterized in that, described cam mounting groove is curve bath, and described cam is adjacent to the curved wall of cam mounting groove.
4. cam wedge formula overrunning clutch according to claim 1, is characterized in that, described baffle plate is by circumferentially equally distributed screw and described outer shroud are fixed.
5. cam wedge formula overrunning clutch according to claim 1, is characterized in that, the keyway on described interior ring inner surface is spline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510879398.5A CN105422686A (en) | 2015-12-05 | 2015-12-05 | Cam wedge block type one-way clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510879398.5A CN105422686A (en) | 2015-12-05 | 2015-12-05 | Cam wedge block type one-way clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105422686A true CN105422686A (en) | 2016-03-23 |
Family
ID=55501138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510879398.5A Pending CN105422686A (en) | 2015-12-05 | 2015-12-05 | Cam wedge block type one-way clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105422686A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB115878A (en) * | 1917-05-19 | 1918-05-21 | Harry Lucas | Improvements relating to Clutches. |
| JP2000249169A (en) * | 1999-03-01 | 2000-09-12 | Koyo Seiko Co Ltd | One-way clutch |
| CN1748095A (en) * | 2003-02-13 | 2006-03-15 | Nsk沃纳株式会社 | Rotation activated one-way clutch |
| CN101016923A (en) * | 2006-02-07 | 2007-08-15 | 厦门恒耀金属有限公司 | Overrunning clutch for slow-speed no-load and high-speed transfer torque |
| CN101932845A (en) * | 2008-03-06 | 2010-12-29 | Nsk沃纳株式会社 | Roller-type overrunning clutch |
| CN102042349A (en) * | 2009-10-19 | 2011-05-04 | Nsk沃纳株式会社 | One-way clutch |
| CN201908973U (en) * | 2011-01-07 | 2011-07-27 | 北京新兴超越离合器有限公司 | Contactless wedge overrunning clutch |
| CN202392002U (en) * | 2011-10-26 | 2012-08-22 | 咸阳超越离合器有限公司 | Non-contact type overrun clutch capable of being eccentrically provided with non-overturning block |
| JP2012167725A (en) * | 2011-02-14 | 2012-09-06 | Jtekt Corp | One-way clutch |
| CN202531686U (en) * | 2012-05-03 | 2012-11-14 | 北方民族大学 | Backstop |
| JP2014084955A (en) * | 2012-10-24 | 2014-05-12 | Jtekt Corp | One-way clutch |
| CN104373483A (en) * | 2014-10-23 | 2015-02-25 | 重庆从仁机电有限公司 | Pin roller type one-way overrunning clutch device for motorcycle |
| CN205315553U (en) * | 2015-12-05 | 2016-06-15 | 重庆华洋单向器制造有限公司 | Cam wedge type one way clutch |
-
2015
- 2015-12-05 CN CN201510879398.5A patent/CN105422686A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB115878A (en) * | 1917-05-19 | 1918-05-21 | Harry Lucas | Improvements relating to Clutches. |
| JP2000249169A (en) * | 1999-03-01 | 2000-09-12 | Koyo Seiko Co Ltd | One-way clutch |
| CN1748095A (en) * | 2003-02-13 | 2006-03-15 | Nsk沃纳株式会社 | Rotation activated one-way clutch |
| CN101016923A (en) * | 2006-02-07 | 2007-08-15 | 厦门恒耀金属有限公司 | Overrunning clutch for slow-speed no-load and high-speed transfer torque |
| CN101932845A (en) * | 2008-03-06 | 2010-12-29 | Nsk沃纳株式会社 | Roller-type overrunning clutch |
| CN102042349A (en) * | 2009-10-19 | 2011-05-04 | Nsk沃纳株式会社 | One-way clutch |
| CN201908973U (en) * | 2011-01-07 | 2011-07-27 | 北京新兴超越离合器有限公司 | Contactless wedge overrunning clutch |
| JP2012167725A (en) * | 2011-02-14 | 2012-09-06 | Jtekt Corp | One-way clutch |
| CN202392002U (en) * | 2011-10-26 | 2012-08-22 | 咸阳超越离合器有限公司 | Non-contact type overrun clutch capable of being eccentrically provided with non-overturning block |
| CN202531686U (en) * | 2012-05-03 | 2012-11-14 | 北方民族大学 | Backstop |
| JP2014084955A (en) * | 2012-10-24 | 2014-05-12 | Jtekt Corp | One-way clutch |
| CN104373483A (en) * | 2014-10-23 | 2015-02-25 | 重庆从仁机电有限公司 | Pin roller type one-way overrunning clutch device for motorcycle |
| CN205315553U (en) * | 2015-12-05 | 2016-06-15 | 重庆华洋单向器制造有限公司 | Cam wedge type one way clutch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2020516829A (en) | Torsional vibration damper with torque limiter | |
| RU2554039C2 (en) | Differential with improved maximal torque and torque intensity | |
| CN102954167A (en) | Tensioning device for a belt drive and electric machine with such a tensioning device | |
| CN104411990A (en) | Friction clutch assembly | |
| CN103502682B (en) | There is the friction clutch plate of damping spring | |
| WO2011012968A1 (en) | Locking differential having improved torque capacity | |
| JP6522675B2 (en) | Torque coupling unit | |
| US10408323B2 (en) | Drive unit with twin side shaft torque coupling | |
| CN202371051U (en) | Ball rigid clutch | |
| CN205315553U (en) | Cam wedge type one way clutch | |
| CN105422686A (en) | Cam wedge block type one-way clutch | |
| CN105508460A (en) | Overrunning clutchclamped by roll balls | |
| CN205315552U (en) | Embedded cam isolator | |
| CN106555827A (en) | Automobile and its wet type double clutch gearbox, wet-type dual-clutch | |
| CN202040305U (en) | Multifunctional integrated chain wheel | |
| CN105422684A (en) | Embedded cam one-way clutch | |
| JP2007297966A (en) | Starter device for vehicle | |
| CN103238004A (en) | Freewheel and starting device for an internal combustion engine comprising same | |
| CN103726968A (en) | Overload protection type electrical starting duplicate gear and starting system | |
| CN201606429U (en) | Roller type overrunning coupler | |
| CN202108956U (en) | Jaw and toothed self-locking skidproof differential mechanism | |
| CN107646079A (en) | Clamping roller freewheel clutch with special clamping ramp | |
| CN105151217A (en) | Self-adaptive automatic speed change drive assembly adopting spiral wavy friction transmission for electric motorcycle | |
| CN201687630U (en) | Driving shaft of automobile starter with improved spiral spline structure | |
| CN105422683B (en) | A kind of spiral engages isolator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160323 |
|
| RJ01 | Rejection of invention patent application after publication |