CN101936348B - Belt pulley of over-travel alternating current generator decoupler - Google Patents
Belt pulley of over-travel alternating current generator decoupler Download PDFInfo
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- CN101936348B CN101936348B CN2010102738549A CN201010273854A CN101936348B CN 101936348 B CN101936348 B CN 101936348B CN 2010102738549 A CN2010102738549 A CN 2010102738549A CN 201010273854 A CN201010273854 A CN 201010273854A CN 101936348 B CN101936348 B CN 101936348B
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Abstract
The invention relates to a belt pulley of an over-travel alternating current generator decoupler, which is arranged on a transmission shaft of the alternating current generator and allows the speed of the belt pulley to fluctuate opposite to the transmission shaft of the alternating current generator due to fluctuation of an engine speed. A spindle of the belt pulley is provided with a limiting shoulder or limiting bump for limiting the axial movement of a retaining frame, wherein the limiting shoulder is provided with a groove which is uniformly distributed on the circumference; an inner circular surface of the retaining frame is provided with a bump which is matched with the groove and a retaining frame groove which is matched with the limiting bump, so that the retaining frame can be conveniently assembled; the end face of a thrust washer is provided with a positioning bump which is positioned in a positioning groove on the end face of the retaining frame; the inner circular surface of the thrust washer is matched with an outer circular surface of the spindle, and a contact surface of the inner circular surface and the outer circular surface is provided with a concave convex limiting structure for preventing relative rotation of the two surfaces; a ball bearing is arranged between the body of the spindle and the inner surface of the belt pulley; and the ball bearing is pressed against the thrust washer for preventing the axial movement of the thrust washer. The belt pulley solves the technical problem of non-ideal response speed of the conventional belt pulley of the over-travel alternating current generator decoupler.
Description
Technical field
The present invention relates to a kind of AC generator for vehicle and use one-way belt sheave; Particularly a kind of being installed on the alternator transmission shaft allows the speed of belt pulley because engine speed fluctuations is former thereby with respect to the surpassed distance alternator decoupler belt pulley of alternator transmission shaft fluctuation.
Background technique
Single-way belt pulley of automobile generator comes from Germany, and American-European in the world at present car is, Japan and Korea S car system uses more.The generator one-way belt sheave has OAP/OAD/OWC etc. according to the structure difference, and the producer that produces this belt pulley in the world is main with INA, Leiden, Gates, NSK, NTN, KOYO etc.The main effect of single-way belt pulley of automobile generator is: 1, reduce the fluctuation of front end train tension force, improve each part life of front end train; 2, reduce the fluctuation of speed of front end train, reduce the noise of front end train; 3, avoid reverse impact, effectively protect generator; 4, reduce the energy consumption that the generator counter-rotating causes, energy saving.Wherein, OAD is a surpassed distance alternator decoupler belt pulley, is that application is more in the car in U.S.A, and it can filter vibration at high speed, also can filter low speed vibration, and its structure is following: comprise wheel hub, wheel hub is fixedly mounted on the transmission shaft.Wheel hub has opposed first end and second end and the cylindrical body of the axially extended cardinal principle of between, and first flange of an annular is adjacent to second end and radially stretches out from body.First flange comprises outer flange surface, and the outer diameter of this ledge surface is greater than body, and an annular surface radially extends between body and outer flange surface substantially, and is relative with second end.In annular surface, form spiral substantially first groove.One carriage is rotatably installed on the wheel hub.Carriage comprises spiral second groove that is formed in it.One torsion spring extends between hub end and the carrier end; In order to transmitting torque between wheel hub and carriage; Wherein, hub end is maintained in spiral first groove, in order to relative movement between the hub end that prevents torsion spring and the wheel hub; Carrier end is maintained in spiral second groove, in order to relative movement between the carrier end that prevents torsion spring and the carriage.One belt pulley is rotationally attached to wheel hub.Belt pulley comprises an outer surface, this outer surface design with the drive belt friction engagement.Said belt pulley has the internal surface that is formed at wherein.One clutch spring is fastened on the carriage and has many spiral spring coils, and the internal surface friction engagement of these spring coils and belt pulley connects wheel hub and belt pulley with selectivity.Torsion spring and clutch spring along opposite steering wheel around; Make during belt pulley is with respect to the wheel hub acceleration; Clutch spring is expanded and is meshed with the internal surface clamping of belt pulley; And during belt pulley was with respect to hub reduction, clutch spring shrank and the internal surface of disengaging belt pulley.One thrust washer is sleeved on the wheel hub against carriage, thrust washer and wheel hub interference fit, and the carrier end mask has locating bump, and thrust washer is a waist shape packing ring, and the locating bump of carriage end face is positioned at the recess of waist shape packing ring.Thrust washer prevents that carriage from producing axial displacement on wheel hub.The surpassed distance alternator decoupler belt pulley of this structure, thrust washer and wheel hub are interference fit, when transmitting torque, thrust washer receives bigger radial force, and rotates with respect to wheel hub, influences the speed of response of surpassed distance alternator decoupler belt pulley.
Summary of the invention
The technical problem that the present invention will solve is: solve the unfavorable technical problem of existing surpassed distance alternator decoupler belt pulley speed of response; The present invention provides a kind of surpassed distance alternator decoupler belt pulley, belt pulley quicken with respect to mandrel or slow down during can both in time respond.
The present invention solves first kind of technological scheme that its technical problem adopts: a kind of surpassed distance alternator decoupler belt pulley, have belt pulley, mandrel, torsion spring, friction spring, thrust washer and retainer, and described mandrel has flange part and axis body portion; The projection of circumference uniform distribution more than two on the described retainer inner headed face; Have spacing convex shoulder in the axis body portion of described mandrel, the projection place corresponding to retainer on the spacing convex shoulder is fluted, and the groove of the axis body portion of the projection of retainer and mandrel matches; Retainer is positioned between torsion spring and spacing convex shoulder; Thrust washer is installed on the mandrel against retainer, and the retainer end face has positioning groove, and the thrust washer end face has positioning convex; Positioning convex on the thrust washer is positioned at the positioning groove of retainer end face; Projection on the retainer and the groove location on the mandrel stagger, and the locating bump that the groove on the thrust washer inner headed face on circumference uniform distribution and the mandrel matches, locating bump are inlaid in the groove of mandrel; Between the axis body portion of mandrel and belt pulley internal surface first ball bearing is housed, first ball bearing is against thrust washer.Projection on the retainer and the groove location on the mandrel stagger; Spacing convex shoulder on the mandrel prevents that retainer from axial displacement taking place on mandrel; Locating bump is inlaid in the groove of mandrel on the thrust washer; Thrust washer can not rotate with respect to mandrel, effectively guarantees can both in time respond during belt pulley is with respect to mandrel acceleration or deceleration.
For avoiding retainer on mandrel, to produce axial displacement, the groove width of each groove on the described mandrel is inequality, and the width of each projection on the retainer and the width of each locating bump on the thrust washer are suitable with the width of its corresponding groove respectively.Because the positioning convex on the thrust washer is positioned at the positioning groove on the retainer; The groove width of each groove on the mandrel is inequality; Therefore in the course of the work; The position that can guarantee the groove that groove width corresponding on projection and the mandrel on the retainer is identical remains staggers and can not rotate to coincidence, thereby can guarantee that retainer can not produce axial displacement on mandrel.
The present invention solves another technological scheme that its technical problem adopts: a kind of surpassed distance alternator decoupler belt pulley; Have belt pulley, mandrel, torsion spring, friction spring, thrust washer and retainer, described mandrel has flange part and axis body portion, the retainer groove of circumference uniform distribution more than two on the described retainer inner headed face; Retainer groove corresponding to retainer in the axis body portion of described mandrel has spacing block set; The spacing block set of the axis body portion of retainer groove and mandrel matches, and retainer is between the spacing block set on torsion spring and the mandrel, and thrust washer is installed on the mandrel against retainer; The retainer end face has positioning groove; The thrust washer end face has positioning convex, and the positioning convex on the thrust washer is positioned at the positioning groove of retainer end face, staggers in retainer groove on the retainer and the spacing block set position on the mandrel; The thrust washer groove that spacing block set on the thrust washer inner headed face on circumference uniform distribution and the mandrel matches; The spacing block set of mandrel is inlaid in the thrust washer groove, between the axis body portion of mandrel and belt pulley internal surface first ball bearing is housed, and first ball bearing is against thrust washer.Stagger in retainer groove on the retainer and the spacing block set position on the mandrel; Spacing block set on the mandrel prevents that retainer from axial displacement taking place on mandrel; Spacing block set on the mandrel is inlaid in the thrust washer groove on the thrust washer; Thrust washer can not rotate with respect to mandrel, effectively guarantees can both in time respond during belt pulley is with respect to mandrel acceleration or deceleration.
For avoiding retainer on mandrel, to produce axial displacement; The width of each spacing block set on the described mandrel is inequality, and the width of the width of each the retainer groove on the retainer and each the thrust washer groove on the thrust washer width of the spacing block set corresponding with it respectively is suitable.Because the positioning convex on the thrust washer is positioned at the positioning groove on the retainer; The width of each spacing block set on the mandrel is inequality; Therefore in the course of the work; The position that can guarantee the spacing block set of same widths corresponding on retainer groove and the mandrel on the retainer remains staggers and can not rotate to coincidence, thereby can guarantee that retainer can not produce axial displacement on mandrel.
The invention has the beneficial effects as follows: surpassed distance alternator decoupler belt pulley of the present invention, simple and reasonable, belt pulley quicken with respect to mandrel or slow down during can both in time respond.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Fig. 1 is first embodiment's of a surpassed distance alternator decoupler belt pulley of the present invention structural representation.
Fig. 2 is the structural representation of the mandrel among the present invention.
Fig. 3 is the right elevation of Fig. 2.
Fig. 4 is the structural representation of the thrust washer among the present invention.
Fig. 5 is the A-A sectional view of Fig. 4.
Fig. 6 is the stereogram of the thrust washer among the present invention.
Fig. 7 is the structural representation of the retainer among the present invention.
Fig. 8 is the left view of Fig. 7.
Fig. 9 is the right elevation of Fig. 7.
Figure 10 is the B-B sectional view of Fig. 9.
Figure 11 is the C-C sectional view of Fig. 9.
Figure 12 is second embodiment's of a surpassed distance alternator decoupler belt pulley of the present invention structural representation.
Figure 13 is the structural representation of the mandrel among the present invention.
Figure 14 is the A-A revolved sectional view of Figure 13.
Figure 15 is the structural representation of the thrust washer among the present invention.
Figure 16 is the B-B sectional view of Fig. 4.
Figure 17 is the structural representation of the retainer among the present invention.
Figure 18 is the left view of Figure 17.
Figure 19 is the right elevation of Figure 17.
Figure 20 is the C-C sectional view of Fig. 9.
Figure 21 is the D-D sectional view of Fig. 9.
Among the figure: 1. belt pulley, 2. mandrel, 2-1. flange part, 2-2. axis body portion, 2-2-1. groove; 2-2-1 '. spacing block set, the spacing convex shoulder of 2-2-2., 2-3. second helicoid, 2-4. second positioning step, 3. torsion spring; 4. friction spring, 5. thrust washer, 5-1 positioning convex, 5-2. locating bump, 5-2 '. the thrust washer groove; 6. retainer, 6-1. groove, 6-2. projection, 6-2 '. retainer groove, 6-3. first helicoid; 6-4. first positioning step, 6-5. positioning groove, 6-6. plane, 7. first ball bearing, 8. second ball bearing.
Embodiment
First embodiment of surpassed distance alternator decoupler belt pulley of the present invention shown in Fig. 1～11; Have belt pulley 1, mandrel 2, torsion spring 3, friction spring 4, thrust washer 5 and retainer 6; Mandrel 2 has flange part 2-1 and the 2-2 of axis body portion; Torsion spring 3 is sleeved on the 2-2 of axis body portion of mandrel 2, and the projection 6-2 that three width of circumference uniform distribution have nothing in common with each other on retainer 6 inner headed faces has spacing convex shoulder 2-2-2 on the 2-2 of axis body portion of mandrel 2; Spacing convex shoulder 2-2-2 goes up the fluted 2-2-1 in projection 6-2 place corresponding to retainer 6; The width of corresponding projection 6-2 on the groove width of the groove 2-2-1 of the 2-2 of axis body portion of mandrel 2 and the retainer 6 matches, and retainer 6 is positioned between torsion spring 3 and spacing convex shoulder 2-2-2, and thrust washer 5 is installed on the mandrel 2 against retainer 6; Retainer 6 end faces have positioning groove 6-5; Thrust washer 5 end faces have positioning convex 5-1, and the positioning convex 5-1 on the thrust washer 5 is positioned at the positioning groove 6-5 of retainer 6 end faces, stagger in projection 6-2 on the retainer 6 and the groove 2-2-1 position on the mandrel 2; The locating bump 5-2 that groove 2-2-1 on thrust washer 5 inner headed faces on circumference uniform distribution and the mandrel 2 matches; Locating bump 5-2 is inlaid among the groove 2-2-1 of mandrel, first ball bearing, 7, the first ball bearings 7 is housed against thrust washer 5 between the 2-2 of axis body portion of mandrel 2 and belt pulley 1 internal surface.
Second embodiment of the surpassed distance alternator decoupler belt pulley of the present invention shown in Figure 12～21; Have belt pulley 1, mandrel 2, torsion spring 3, friction spring 4, thrust washer 5 and retainer 6; Mandrel 2 has flange part 2-1 and the 2-2 of axis body portion; The retainer groove 6-2 ' of circumference uniform distribution more than two on retainer 6 inner headed faces, the retainer groove 6-2 ' that the 2-2 of axis body portion of mandrel 2 goes up corresponding to retainer 6 has located spacing block set 2-2-1 ', and retainer groove 6-2 ' and the spacing block set 2-2-1 ' of the 2-2 of axis body portion of mandrel 2 match; Retainer 6 is positioned between the spacing block set 2-2-1 ' on torsion spring 3 and the mandrel; Thrust washer 5 is installed on the mandrel 2 against retainer 6, and retainer 6 end faces have positioning groove 6-5, and thrust washer 5 end faces have positioning convex 5-1; Positioning convex 5-1 on the thrust washer 5 is positioned at the positioning groove 6-5 of retainer 6 end faces; Retainer groove 6-2 ' on the retainer 6 staggers with the spacing block set 2-2-1 ' position on the mandrel 2, and the thrust washer groove 5-2 ' that the spacing block set 2-2-1 ' on thrust washer 5 inner headed faces on circumference uniform distribution and the mandrel 2 matches, the spacing block set 2-2-1 ' of mandrel are inlaid among the thrust washer groove 5-2 '; First ball bearing, 7, the first ball bearings 7 are housed against thrust washer 5 between the 2-2 of axis body portion of mandrel 2 and belt pulley 1 internal surface.
The width of each spacing block set 2-2-1 ' on the mandrel 2 is inequality, and the width of the spacing block set 2-2-1 ' that the width of the width of each the retainer groove 6-2 ' on the retainer 6 and each the thrust washer groove 5-2 ' on the thrust washer 5 is corresponding with it respectively is suitable.
Claims (4)
1. surpassed distance alternator decoupler belt pulley; Have belt pulley (1), mandrel (2), torsion spring (3), friction spring (4), thrust washer (5) and retainer (6); Described mandrel (2) has flange part (2-1) and axis body portion (2-2); It is characterized in that: the projection (6-2) of circumference uniform distribution more than two on described retainer (6) inner headed face; Have spacing convex shoulder (2-2-2) in the axis body portion (2-2) of described mandrel (2), spacing convex shoulder (2-2-2) is gone up and is located fluted (2-2-1) corresponding to the projection (6-2) of retainer (6), and the projection (6-2) of retainer (6) matches with the groove (2-2-1) of the axis body portion (2-2) of mandrel (2); Retainer (6) is positioned between torsion spring (3) and spacing convex shoulder (2-2-2); Thrust washer (5) is installed on the mandrel (2) against retainer (6), and retainer (6) end face has positioning groove (6-5), and thrust washer (5) end face has positioning convex (5-1); Positioning convex (5-1) on the thrust washer (5) is positioned at the positioning groove (6-5) of retainer (6) end face; Projection (6-2) on the retainer (6) staggers with groove (2-2-1) position on the mandrel (2), and the locating bump (5-2) that the groove (2-2-1) on thrust washer (5) inner headed face on circumference uniform distribution and the mandrel (2) matches, locating bump (5-2) are inlaid in the groove (2-2-1) of mandrel; Between the axis body portion (2-2) of mandrel (2) and belt pulley (1) internal surface first ball bearing (7) is housed, first ball bearing (7) is against thrust washer (5).
2. surpassed distance alternator decoupler belt pulley according to claim 1; It is characterized in that: the groove width of each groove (2-2-1) on the described mandrel (2) is inequality, and the width of each projection (6-2) on the retainer (6) and the width of each locating bump on the thrust washer (5) are suitable with the width of its corresponding groove (2-2-1) respectively.
3. surpassed distance alternator decoupler belt pulley; Have belt pulley (1), mandrel (2), torsion spring (3), friction spring (4), thrust washer (5) and retainer (6); Described mandrel (2) has flange part (2-1) and axis body portion (2-2); It is characterized in that: the retainer groove of circumference uniform distribution more than two on described retainer (6) inner headed face (6-2 '); The axis body portion (2-2) of described mandrel (2) goes up retainer groove corresponding to retainer (6) (6-2 ') and has located spacing block set (2-2-1 '); The spacing block set of retainer groove (6-2 ') and the axis body portion (2-2) of mandrel (2) (2-2-1 ') matches, and retainer (6) is positioned between the spacing block set on torsion spring (3) and the mandrel (2) (2-2-1 '), and thrust washer (5) is installed on the mandrel (2) against retainer (6); Retainer (6) end face has positioning groove (6-5); Thrust washer (5) end face has positioning convex (5-1), and the positioning convex (5-1) on the thrust washer (5) is positioned at the positioning groove (6-5) of retainer (6) end face, staggers in the spacing block set on the retainer groove on the retainer (6) (6-2 ') and the mandrel (2) (2-2-1 ') position; The thrust washer groove that spacing block set on thrust washer (5) inner headed face on circumference uniform distribution and the mandrel (2) (2-2-1 ') matches (5-2 '); The spacing block set of mandrel (2) (2-2-1 ') is inlaid in the thrust washer groove (5-2 '), between the axis body portion (2-2) of mandrel (2) and belt pulley (1) internal surface first ball bearing (7) is housed, and first ball bearing (7) is against thrust washer (5).
4. surpassed distance alternator decoupler belt pulley according to claim 3; It is characterized in that: the width of each spacing block set on the described mandrel (2) (2-2-1 ') is inequality, and the width of the spacing block set that the width of the width of each retainer groove on the retainer (6) (6-2 ') and each the thrust washer groove on the thrust washer (5) (5-2 ') is corresponding with it respectively (2-2-1 ') is suitable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102738549A CN101936348B (en) | 2010-09-07 | 2010-09-07 | Belt pulley of over-travel alternating current generator decoupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102738549A CN101936348B (en) | 2010-09-07 | 2010-09-07 | Belt pulley of over-travel alternating current generator decoupler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101936348A CN101936348A (en) | 2011-01-05 |
| CN101936348B true CN101936348B (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102738549A Active CN101936348B (en) | 2010-09-07 | 2010-09-07 | Belt pulley of over-travel alternating current generator decoupler |
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| CN102182749A (en) * | 2011-04-21 | 2011-09-14 | 江苏南方轴承股份有限公司 | Decoupler mandrel capable of preventing force conducted interference and decoupler using the same |
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| CN102501071A (en) * | 2011-12-21 | 2012-06-20 | 厦门捷讯汽车零部件有限公司 | Device and technology for manufacturing automobile decoupling motor belt pulley with small spoke structure at single side |
| CN102500699A (en) * | 2011-12-21 | 2012-06-20 | 厦门捷讯汽车零部件有限公司 | Manufacturing mould for non-spoke automobile decoupling motor pulley and process thereof |
| US8813932B2 (en) * | 2012-03-08 | 2014-08-26 | The Gates Corporation | Isolator decoupler |
| CN102817936B (en) * | 2012-09-05 | 2015-06-03 | 李志敏 | Spring friction clutch mechanism for belt pulley and one-way coupling damping belt pulley |
| CN103363064B (en) * | 2013-07-15 | 2015-06-03 | 李志敏 | Spring friction brake one-way coupling damping belt wheel |
| CN103352973B (en) * | 2013-06-13 | 2015-04-22 | 李志敏 | Unidirectional belt pulley subjected to friction clutch by spring |
| US9611928B2 (en) | 2013-06-13 | 2017-04-04 | Zhimin Li | Unidirectional coupling damping pulley |
| CN105003627A (en) * | 2015-08-17 | 2015-10-28 | 浙江洋通汽车配件有限公司 | One-way buffer pulley |
| DE102019130280A1 (en) * | 2019-11-11 | 2021-05-12 | Schaeffler Technologies AG & Co. KG | Machining-free production of a hub for a pulley decoupler |
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|---|---|---|---|---|
| US5139463A (en) * | 1991-06-05 | 1992-08-18 | Litens Automotive Partnership | Serpentine drive with coil spring alternator connection |
| CN1890479A (en) * | 2003-12-09 | 2007-01-03 | 利滕斯汽车合伙公司 | Spring travel limitor for overrunning alternator decoupler |
| EP1772644A1 (en) * | 2002-07-26 | 2007-04-11 | Litens Automotive | Overrunning alternator pulley with bare wire spring and grease lubrication |
| CN200978944Y (en) * | 2006-10-25 | 2007-11-21 | 史建伟 | Integral type pulley assembly for automobile AC generator |
| CN201779177U (en) * | 2010-09-07 | 2011-03-30 | 江苏南方轴承股份有限公司 | Belt pulley of decoupler in overtravel alternating current generator |
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2010
- 2010-09-07 CN CN2010102738549A patent/CN101936348B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5139463A (en) * | 1991-06-05 | 1992-08-18 | Litens Automotive Partnership | Serpentine drive with coil spring alternator connection |
| EP1772644A1 (en) * | 2002-07-26 | 2007-04-11 | Litens Automotive | Overrunning alternator pulley with bare wire spring and grease lubrication |
| CN1890479A (en) * | 2003-12-09 | 2007-01-03 | 利滕斯汽车合伙公司 | Spring travel limitor for overrunning alternator decoupler |
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| CN201779177U (en) * | 2010-09-07 | 2011-03-30 | 江苏南方轴承股份有限公司 | Belt pulley of decoupler in overtravel alternating current generator |
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Address after: 213000 Longxiang Road, Wujin high tech Development Zone, Changzhou City, Jiangsu Province Patentee after: Jiangsu Nanfang Precision Industry Co.,Ltd. Address before: 213164 No. 9, Longxiang Road, high tech Development Zone, Wujin District, Changzhou City, Jiangsu Province Patentee before: Jiangsu Nanfang Bearing Co.,Ltd. |
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