CN103527665B - A kind of two circumference spring synchronizer - Google Patents
A kind of two circumference spring synchronizer Download PDFInfo
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- CN103527665B CN103527665B CN201310516922.3A CN201310516922A CN103527665B CN 103527665 B CN103527665 B CN 103527665B CN 201310516922 A CN201310516922 A CN 201310516922A CN 103527665 B CN103527665 B CN 103527665B
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Abstract
The present invention relates to a kind of two circumference spring synchronizer, it comprises the tooth hub be set on transmission shaft and the tooth cover be flexibly connected by spline with tooth hub, tooth hub both ends of the surface central position is provided with circumferential recess, and the neutral gear retaining spring of annular is placed in the groove interval between upper and lower spline tooth.Tooth hub axial end is connected with synchronizing ring, and the inner conical surface of synchronizing ring is connected with the male cone (strobilus masculinus) in conjunction with tooth, synchronizing ring protruding structure is arranged with the presynchronization spring of annular.This synchronizer provided by the invention can realize synchronizing ring and the preconditioning in conjunction with friction torque between the tooth conical surface, improves the smooth gear shifting of speed changer; Ensure that synchronizer has correct neutral position and makes synchronizer structure more compact.
Description
Technical field
The present invention relates to automobile gearbox component technical field, be specifically related to a kind of two circumference spring synchronizer.
Background technique
Synchronizer is the vitals of automobile gearbox, and it can ensure that vehicle gearing is smooth-going, improves the working life of vehicle drive system and alleviate the labor intensity of driver.Conventional lock ring type inertia synchronizer has the slide block structure of three groups of symmetries, and slide block is provided with locating stud and is connected with tooth hub by spring.The synchronizer amount of parts of this structural type is many, installation procedure is complicated and cost is higher.Meanwhile, because radial dimension is little, synchronizing ring and in conjunction with friction torque between the tooth conical surface is less and the size of friction torque cannot preconditioning.
Summary of the invention
The technical problem to be solved in the present invention is: the invention provides a kind of two circumference spring synchronizer, can realize synchronizing ring and the preconditioning in conjunction with friction torque between the tooth conical surface, improve the smooth gear shifting of speed changer; Ensure that synchronizer has correct neutral position and makes synchronizer structure more compact.
In order to achieve the above object, the present invention adopts following technological scheme:
A kind of two circumference spring synchronizer, comprise the tooth hub be set on transmission shaft and the tooth cover be flexibly connected by spline with tooth hub, it is characterized in that: on the external splines of the central position of described tooth hub both ends of the surface, be provided with circumferential recess, the neutral gear retaining spring of annular is placed in described circumferential recess; Described tooth hub axial end both sides are connected to synchronizing ring, and the radial inner conical surface of synchronizing ring is connected with the male cone (strobilus masculinus) in conjunction with tooth;
The inner spline gear of tooth cover is provided with the high tooth of three groups of circumference uniform intervals distribution, and the low tooth of external splines of high tooth and tooth hub engages each other; The dual-side of high tooth is along being profile of tooth, and the central position of tooth cover both ends of the surface arranges high mark of mouth groove, and the lowest order of the extreme lower position tooth lower than the external splines of tooth hub of this high mark of mouth groove sets high, and makes only have high tooth can contact with neutral gear retaining spring;
Tooth hub external splines has three circumferential uniform intervals and the groove extended vertically, groove is arranged on the low tooth of the external splines subtend position diametrically of tooth hub;
Connect a synchronizing ring separately outside the axial both ends of the surface of tooth hub, the axial barrel tip of each synchronizing ring is circumference three sections of evenly spaced spline tooths, and these three sections of evenly spaced spline tooths distribute identical with the external splines of tooth hub; On the axial cylindrical shell of each synchronizing ring, correspondingly with the groove of tooth hub be provided with three equally distributed protruding structures of circumference, these three protruding structures all can stretch in the groove on tooth hub respectively;
The axial both ends of the surface of tooth hub respectively arrange a circle groove, and outer concave well width is greater than inboard groove width vertically; The axial cylindrical shell of each synchronizing ring all stretches in the groove of adjacent side tooth hub, and each axial cylindrical shell is arranged with the presynchronization spring of annular; At protruding structure place, each presynchronization spring between the axial end of tooth hub and the protruding structure of the synchronizing ring of this side, and is arranged in the internal spline gear ring of tooth cover; The interior sidewall surface of synchronizing ring is inner conical surface; Interiorly be male cone (strobilus masculinus) in conjunction with tooth and the outer urceolus wall in conjunction with tooth, each male cone (strobilus masculinus) all stretches in the inner conical surface of the synchronizing ring of this side.
By technique scheme, described neutral gear retaining spring is split ring, and described presynchronization spring is spring of remaining silent.
By technique scheme, the number that described tooth cover internal spline often organizes high tooth is 2.
By technique scheme, the width of described tooth hub groove is that the width of synchronizing ring protruding structure adds the transverse tooth thickness that tooth overlaps.
By technique scheme, three groups of low teeth of external splines of described tooth hub all stagger 60 ° mutually with the phase angle of adjacent groove.
By technique scheme, the lowest order of the extreme lower position tooth lower than the external splines of tooth hub of this high mark of mouth groove sets high 0.1mm.
By technique scheme, when tooth cover is close to side synchronizing ring, the neutral gear retaining spring of opening is compressed by the high tooth that described tooth overlaps, and embeds in the circumferential recess of tooth hub; When tooth cover leave synchronizing ring move to vertically tooth cover both ends of the surface central position time, the neutral gear retaining spring of opening is upheld, neutral gear retaining spring outer ring embeds tooth and overlaps in the axially corresponding high mark of mouth groove of high tooth, plays neutral gear positioning action, ensures that synchronizer is in correct neutral position;
When synchronizing ring protruding structure is positioned at tooth hub groove central, tooth cover just in time aligns with the inside and outside spline tooth of synchronizing ring, enters engagement; If the protruding structure of synchronizing ring is against the side of tooth hub groove, tooth cover staggers half with the spline tooth of synchronizing ring, can not enter engagement.
The present invention has following beneficial effect:
The spline tooth that the provided by the invention pair of circumference spring synchronizer overlaps at described tooth hub and tooth is provided with circumferential recess, the neutral gear location that neutral gear retaining spring realizes synchronizer is installed in the interval of two grooves; The axial end of described tooth hub is connected with synchronizing ring, synchronizing ring boss is provided with the presynchronization spring of annular, when described tooth cover slides axially near synchronizing ring, the high tooth of tooth cover will compress presynchronization spring, synchronizing ring presses in conjunction with tooth by presynchronization spring, between synchronizing ring and the conical surface in conjunction with tooth, produce friction torque; By setting specific tooth depth and presynchronization spring rate, the preconditioning of conical surface friction moment can be realized; Meanwhile, the structure of two circumference spring synchronizer is more simply compact, and the processing of product, installation are more prone to realize.
Accompanying drawing explanation
Fig. 1 is of the present invention pair of circumference spring synchronizer structure schematic diagram.
Fig. 2 is perspective view under the two circumference spring synchronizer disassembled form of the present invention (omitting interior in conjunction with tooth 6 and outer in conjunction with tooth 7).
Fig. 3 is tooth hub 1 splined section structural representation of the present invention.
Fig. 4 is that tooth of the present invention overlaps 2 spline structure schematic diagram.
Fig. 5 is the A-A sectional view of Fig. 4.
Accompanying drawing illustrates:
1-tooth hub; 1.1-groove; 1.2-groove; 2-tooth cover; 2.1-height tooth; 3-neutral gear retaining spring; 4-presynchronization spring; 5-synchronizing ring; 5.1-protruding structure; 5.2-spline tooth; In conjunction with tooth in 6-; In conjunction with tooth outside 7-.
Embodiment
Be described in detail below in conjunction with two circumference spring synchronizers of accompanying drawing to the embodiment of the present invention.
Fig. 1-5 is depicted as the structural representation of the two circumference spring synchronizer of the present invention, it comprises the tooth hub 1 that is set on transmission shaft and overlaps 2 with the tooth that tooth hub 1 is flexibly connected by spline tooth (external spline teeth and the described tooth of tooth hub 1 overlap the inner spline gear of 2), the external splines of the center position of described tooth hub 1 both ends of the surface is provided with circumferential recess, and the neutral gear retaining spring 3 of annular is placed in the circumferential recess on the external splines of tooth hub 1;
As can be seen from Figure 3, the external splines of tooth hub 1 is discontinuous, also be that tooth hub 1 external splines has three circumferential uniform intervals and the groove 1.1 extended vertically, groove 1.1 is arranged on the low tooth of the external splines subtend position diametrically of tooth hub 1, in order to make synchronizer structure symmetrical, three groups of low teeth of external splines of described tooth hub 1 all stagger 60 ° mutually with the phase angle of adjacent groove 1.1;
As Fig. 1-5, the inner spline gear of tooth cover 2 is provided with the high tooth 2.1 of three groups of circumference uniform intervals distribution, and high tooth 2.1 engages each other with the low tooth of external splines of tooth hub 1; The dual-side of high tooth 2.1 is along being profile of tooth, and the central position that tooth overlaps 2 both ends of the surface arranges high mark of mouth groove, and the lowest order of the extreme lower position tooth lower than the external splines of tooth hub 1 of this high mark of mouth groove sets high 0.1mm, makes only have high tooth 2.1 can contact with neutral gear retaining spring 3.
Connect a synchronizing ring 5 separately outside the axial both ends of the surface of tooth hub 1, as shown in Figure 2, the axial barrel tip of each synchronizing ring 5 is circumference three sections of evenly spaced spline tooths 5.2, and these three sections evenly spaced spline tooths 5.2 distribute identical with the external splines of tooth hub 1; On the axial cylindrical shell of each synchronizing ring 5, correspondingly with the groove 1.1 of tooth hub 1 be provided with three equally distributed protruding structures 5.1 of circumference, these three protruding structures 5.1 can stretch in the groove 1.1 on tooth hub 1 respectively, and the width of tooth hub 1 groove 1.1 is that the width of synchronizing ring 5 protruding structure 5.1 adds the transverse tooth thickness that tooth overlaps 2 inner spline gears;
The axial both ends of the surface of tooth hub 1 are respectively arranged a circle groove 1.2, outside groove 1.2 width is greater than inboard groove 1.2 width vertically; The axial cylindrical shell of each synchronizing ring 5 all stretches in the groove 1.2 of adjacent side tooth hub 1, and each axial cylindrical shell is arranged with the presynchronization spring 4 of annular, and at protruding structure 5.1 place, each presynchronization spring 4 between the axial end of tooth hub 1 and the protruding structure 5.1 of the synchronizing ring of this side, and is arranged in the internal spline gear ring of tooth cover 2; The interior sidewall surface of synchronizing ring 5 is inner conical surface;
Interiorly be male cone (strobilus masculinus) in conjunction with tooth 6 and the outer urceolus wall in conjunction with tooth 7, each male cone (strobilus masculinus) all stretches in the inner conical surface of synchronizing ring 5 of this side.
Described neutral gear retaining spring 3 is split ring, and described presynchronization spring 4 is spring of remaining silent.
When tooth cover 2 is close to side synchronizing ring 5, the neutral gear retaining spring 3 of opening is compressed by the high tooth 2.1 of described tooth cover 2, embeds in the circumferential recess of tooth hub 1; When tooth cover 2 leave synchronizing ring 5 move to axial symmetrical position time, the neutral gear retaining spring 3 of opening is upheld, neutral gear retaining spring 3 outer ring embeds tooth and overlaps in the axially corresponding high mark of mouth groove of 2 high teeth, plays neutral gear positioning action, ensures that synchronizer is in correct neutral position.
As can be seen from Figure 4, the number that high tooth 2.1 often organized by tooth cover 2 is 2, and in order to ensure that tooth hub 1 and tooth overlap 2 and can normally engage, the external splines of tooth hub 1 has the three group low teeth corresponding with high tooth.
As can be seen from Figure 1, synchronizing ring 5 has three symmetrical protruding structures 5.1, these three protruding structures 5.1 can stretch on tooth hub 1 in groove 1.1 respectively, and the width of groove is that the width of synchronizing ring 5 protruding structure adds the transverse tooth thickness that tooth overlaps 2 spline tooths.This can ensure, when synchronizing ring 5 protruding structure 5.1 is positioned at tooth hub 1 groove 1.1 central, tooth cover 2 just in time aligns with the inside and outside spline tooth of synchronizing ring 5, can enter engagement; If the protruding structure 5.1 of synchronizing ring 5 is against the side of tooth hub 1 groove 1.1, tooth cover 2 staggers half with the spline tooth of synchronizing ring 5, can not enter engagement.
Presynchronization spring 4 is enclosed within the axial cylindrical shell of synchronizing ring 5, when tooth cover 2 slides axially near synchronizing ring 5, the high tooth 2.1 of tooth cover 2 will compress presynchronization spring 4, synchronizing ring 5 presses in conjunction with tooth (inside in conjunction with tooth 6 and outer in conjunction with tooth 7) by presynchronization spring 4, friction torque is produced between synchronizing ring 5 and the conical surface in conjunction with tooth (in conjunction with tooth 6 and outer in conjunction with tooth 7), make synchronizing ring 5 under the effect of friction torque, rotate forward the angle of half tooth, ensure that the locking face on tooth cover 2 engages with the lock flank of tooth of synchronizing ring 5, avoid the generation impacted in gearshift procedure, locking effect can be played again when synchronizer is not synchronous, by setting specific tooth depth and presynchronization spring rate, the preconditioning of conical surface friction moment can be realized.
Claims (7)
1. a two circumference spring synchronizer, comprise the tooth hub be set on transmission shaft and the tooth cover be flexibly connected by spline with tooth hub, it is characterized in that: on the external splines of the both ends of the surface central position of described tooth hub, be provided with circumferential recess, the neutral gear retaining spring of annular is placed in described circumferential recess; Described tooth hub axial end both sides are connected to synchronizing ring, and the radial inner conical surface of synchronizing ring is connected with the male cone (strobilus masculinus) in conjunction with tooth;
The inner spline gear of tooth cover is provided with the high tooth of three groups of circumference uniform intervals distribution, and the low tooth of external splines of high tooth and tooth hub engages each other; The dual-side of high tooth is along being profile of tooth, and the central position of tooth cover both ends of the surface arranges high mark of mouth groove, and the lowest order of the extreme lower position tooth lower than the external splines of tooth hub of this high mark of mouth groove sets high, and makes only have high tooth can contact with neutral gear retaining spring;
Tooth hub external splines has three circumferential uniform intervals and the groove extended vertically, groove is arranged on the low tooth of the external splines subtend position diametrically of tooth hub;
Connect a synchronizing ring separately outside the axial both ends of the surface of tooth hub, the axial barrel tip of each synchronizing ring is circumference three sections of evenly spaced spline tooths, and these three sections of evenly spaced spline tooths distribute identical with the external splines of tooth hub; On the axial cylindrical shell of each synchronizing ring, correspondingly with the groove of tooth hub be provided with three equally distributed protruding structures of circumference, these three protruding structures all can stretch in the groove on tooth hub respectively;
The axial both ends of the surface of tooth hub respectively arrange a circle groove, and outer concave well width is greater than inboard groove width vertically; The axial cylindrical shell of each synchronizing ring all stretches in the groove of adjacent side tooth hub, and each axial cylindrical shell is arranged with the presynchronization spring of annular; At protruding structure place, each presynchronization spring between the axial end of tooth hub and the protruding structure of the synchronizing ring of this side, and is arranged in the internal spline gear ring of tooth cover; The interior sidewall surface of synchronizing ring is inner conical surface; Interiorly be male cone (strobilus masculinus) in conjunction with tooth and the outer urceolus wall in conjunction with tooth, each male cone (strobilus masculinus) all stretches in the inner conical surface of the synchronizing ring of this side.
2. two circumference spring synchronizer according to claim 1, it is characterized in that: described neutral gear retaining spring is split ring, described presynchronization spring is spring of remaining silent.
3. two circumference spring synchronizer according to claim 1, is characterized in that: the number of described high tooth is 2.
4. two circumference spring synchronizer according to claim 1, is characterized in that: the width of described tooth hub groove is that the width of synchronizing ring protruding structure adds the transverse tooth thickness that tooth overlaps.
5. two circumference spring synchronizer according to claim 1, is characterized in that: three groups of low teeth of external splines of described tooth hub all stagger 60 ° mutually with the phase angle of adjacent groove.
6. two circumference spring synchronizer according to claim 1, is characterized in that: the lowest order of the extreme lower position tooth lower than the external splines of tooth hub of this high mark of mouth groove sets high 0.1mm.
7. according to one of claim 1-6 described pair of circumference spring synchronizer, it is characterized in that: when tooth cover is close to side synchronizing ring, the neutral gear retaining spring of opening is compressed by the high tooth that described tooth overlaps, and embeds in the circumferential recess of tooth hub; When tooth cover leave synchronizing ring move to both ends of the surface central position vertically time, the neutral gear retaining spring of opening is upheld, neutral gear retaining spring outer ring embeds tooth and overlaps in the axially corresponding high mark of mouth groove of high tooth, plays neutral gear positioning action, ensures that synchronizer is in correct neutral position; When synchronizing ring protruding structure is positioned at tooth hub groove central, tooth cover just in time aligns with the inside and outside spline tooth of synchronizing ring, enters engagement; If the protruding structure of synchronizing ring is against the side of tooth hub groove, tooth cover staggers half with the spline tooth of synchronizing ring, can not enter engagement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310516922.3A CN103527665B (en) | 2013-10-28 | 2013-10-28 | A kind of two circumference spring synchronizer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310516922.3A CN103527665B (en) | 2013-10-28 | 2013-10-28 | A kind of two circumference spring synchronizer |
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| CN103527665A CN103527665A (en) | 2014-01-22 |
| CN103527665B true CN103527665B (en) | 2016-01-06 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090493A (en) * | 2014-05-09 | 2015-11-25 | 上汽通用五菱汽车股份有限公司 | Self locking system of MT (Manual Transmission) gear shifting mechanism |
| CN104675878B (en) * | 2015-02-13 | 2017-07-04 | 十堰同创传动技术有限公司 | For the synchronizer of planetary gear type auxiliary transmission |
| CN104728295B (en) * | 2015-04-07 | 2023-08-29 | 天津天海同步科技有限公司 | Automobile synchronizer assembly |
| CN105003567B (en) * | 2015-08-04 | 2017-07-14 | 天津天海同步科技有限公司 | Anti- clamping stagnation synchronizer |
| CN105065500A (en) * | 2015-08-04 | 2015-11-18 | 天津天海同步科技有限公司 | Lock pin type synchronizer |
| DE102016104495A1 (en) * | 2016-03-11 | 2017-09-14 | Hoerbiger Antriebstechnik Holding Gmbh | Sliding sleeve of a synchronization device for a manual transmission and method for producing such a sliding sleeve |
| CN109519485B (en) * | 2019-01-15 | 2024-04-05 | 重庆青山工业有限责任公司 | Synchronizer of automobile speed change device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2271820B (en) * | 1992-10-20 | 1995-11-01 | Borg Warner Automotive | Transmission synchronizer |
| JPH10288227A (en) * | 1997-04-15 | 1998-10-27 | Toyota Motor Corp | Synchronizer |
| CN1473247A (en) * | 2000-12-04 | 2004-02-04 | Э�ͺϽ���ʽ���� | Synchronizer for speed reducer |
| CN1604997A (en) * | 2001-12-17 | 2005-04-06 | 斯堪尼亚有限公司 | Assembly system for synchronizing devices in a gearbox |
| CN1908454A (en) * | 2005-08-05 | 2007-02-07 | 协和合金株式会社 | Synchronizer for transmission case |
| DE102008023031A1 (en) * | 2008-05-09 | 2009-11-12 | Diehl Metall Stiftung & Co. Kg | Sheet synchronizer ring |
-
2013
- 2013-10-28 CN CN201310516922.3A patent/CN103527665B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2271820B (en) * | 1992-10-20 | 1995-11-01 | Borg Warner Automotive | Transmission synchronizer |
| JPH10288227A (en) * | 1997-04-15 | 1998-10-27 | Toyota Motor Corp | Synchronizer |
| CN1473247A (en) * | 2000-12-04 | 2004-02-04 | Э�ͺϽ���ʽ���� | Synchronizer for speed reducer |
| CN1604997A (en) * | 2001-12-17 | 2005-04-06 | 斯堪尼亚有限公司 | Assembly system for synchronizing devices in a gearbox |
| CN1908454A (en) * | 2005-08-05 | 2007-02-07 | 协和合金株式会社 | Synchronizer for transmission case |
| DE102008023031A1 (en) * | 2008-05-09 | 2009-11-12 | Diehl Metall Stiftung & Co. Kg | Sheet synchronizer ring |
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| CN103527665A (en) | 2014-01-22 |
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