CN104728295A - Automobile synchronizer assembly - Google Patents
Automobile synchronizer assembly Download PDFInfo
- Publication number
- CN104728295A CN104728295A CN201510161195.2A CN201510161195A CN104728295A CN 104728295 A CN104728295 A CN 104728295A CN 201510161195 A CN201510161195 A CN 201510161195A CN 104728295 A CN104728295 A CN 104728295A
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- ring
- tooth hub
- gear
- transmission shaft
- synchronizer assembly
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Abstract
The invention provides an automobile synchronizer assembly. The automobile synchronizer assembly is characterized in that an external spline, meshed with an internal spline of a gear sleeve, of a gear hub is arranged on the outer side wall of a gear hub body, one end face of the gear hub body extends outwards in the axis direction to form a gear hub extending part, and a transmission external spline matched with an internal spline of a gear at the power input end is formed at the positions, close to the end, of the outer side wall of the gear hub extending part. A through hole is formed axially in the center of the gear hub, and a transmission shaft is sleeved with the through hole in a sliding mode. Spline meshing between the gear hub and the transmission shaft of the synchronizer is cancelled. The automobile synchronizer assembly avoids that when gear-shifting speed changing is performed, impact between the gear hub and the transmission shaft greatly lowers the requirement for strength of the transmission shaft, and requirements can be met even if the diameter of the transmission shaft is small or the transmission shaft is a hollow shaft small in wall thickness. Meanwhile, the transmission shaft is not likely to be damaged, the service life is prolonged, and traffic safety potential risks are reduced, and the maintaining cost for an automobile is lowered.
Description
Technical field
The invention belongs to automotive transmission field, particularly relate to the synchronizer assembly in a kind of automotive transmission.
Background technique
Existing automobile synchronizer working principle is as follows: tooth cover and tooth hub, tooth hub and transmission shaft all pass through spline engagement, shifting gear is loaded on transmission shaft by bearing housing, when needing gearshift, tooth cover is allocated to the shifting gear needing to change to by selector fork, before engaging with overlapping in conjunction with gear ring and tooth of being fixedly connected with of the shifting gear that these needs change to, synchronous conical ring first combines, make tooth hub synchronous rapidly with the rotating speed in conjunction with gear ring by the friction between the conical surface, namely synchronizer gear sleeve is synchronous rapidly with the rotating speed of shifting gear needing to change to, the shifting gear combined cover changed to now is needed to engage with synchronizer gear sleeve, shift process completes, the shifting gear that power is changed to by these needs reaches transmission shaft, driving automobile continues to travel.
Based on the synchronizer of this kind of working principle, by the spline engagement transferring power between tooth hub and transmission shaft, when often making shift speed change, tooth hub and transmission shaft need bear larger impact, very high to the requirement of strength of transmission shaft, easily cause transmission shaft to damage, bring hidden danger to traffic safety, and increase vehicle maintenance cost.
Summary of the invention
In view of this, the present invention aims to provide a kind of automobile synchronizer assembly, to solve the problems that existing automobile synchronizer exists.
Technological scheme of the present invention is achieved in that
Described automobile synchronizer assembly, comprise tooth cover, tooth hub, in conjunction with gear ring and synchronous conical ring, tooth cover internal spline and tooth hub external splines are connected with a joggle, and tooth overlaps internal spline and matches in conjunction with gear ring external splines, can engage each other, synchronous conical ring tooth hub and in conjunction with gear ring between, described tooth hub external splines is laid in tooth hub body outer side wall, tooth hub body one end face forms tooth hub epitaxy part along axis extension, and tooth hub epitaxy part has the transmission external splines matched with power intake gear inner spline on the outer side wall of end;
Described tooth hub central position has through hole in the axial direction.
Further, described tooth hub epitaxy part external diameter is less than this body diameter of tooth hub.
Further, the through-hole side wall that described tooth hub central position is offered is smooth, and tooth hub is loaded on transmission shaft by bearing housing.
Described in this automobile synchronizer assembly, synchronous conical ring comprises interior conical ring, outer cone ring and bipyramid ring, and interior conical ring is connected with outer cone ring, and outer cone ring is connected with tooth hub body, and bipyramid ring is connected with in conjunction with gear ring;
Interior conical ring male cone (strobilus masculinus) and bipyramid ring inner conical surface match, and outer cone ring inner conical surface and bipyramid ring male cone (strobilus masculinus) match.
Specifically, above-mentioned outer cone ring is connected with tooth hub body and is achieved in the following ways: the uniform some grooves of described tooth hub body outer side wall circumference, and be all connected with slide block in groove, slider bottom is provided with spring, spring one end is fixed on slide block, and the other end and bottom portion of groove abut against;
Described outer cone ring has the breach matched with slide block, slide block energy moving card is located therein.
For the defect that existing automobile synchronizer exists, automobile synchronizer assembly of the present invention has done a series of improvement for tooth hub: tooth hub is extended to form tooth hub epitaxy part from end face, and tooth hub epitaxy part has the transmission external splines matched with power intake gear inner spline on the outer side wall of end; Offer through hole in the axial direction in tooth hub central position, propeller shaft slip suit wherein simultaneously.By improving above thus existing power being inputted from power shift gear transmission, be passed to synchromesh gear hub, to engage with transmission shaft power to transfer out by synchromesh gear hub again and change into power and input and transmit from tooth hub, be passed to power shift gear, engaged with gear of output end by power shift gear, power transfers out the most at last again.
This automobile synchronizer assembly eliminates the spline engagement between synchromesh gear hub and transmission shaft, when avoiding shift speed change, impact between tooth hub and transmission shaft, make greatly to reduce the requirement of strength of transmission shaft, even if transmission shaft diameter is less, or when transmission shaft is wall thickness thinner hollow shaft, also can meet the demands; Also make transmission shaft not fragile, working life increases, and reduces traffic safety hidden danger and vehicle maintenance cost simultaneously.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is that the present invention crosses an its center, and passes through the axial sectional view of central axis
Description of reference numerals:
In figure: 1. tooth cover, 2. tooth hub, 3. in conjunction with gear ring, 4. shifting gear, 5. in conical ring, 6. outer cone ring, 7. bipyramid ring, 8. slide block, 9. spring, 10. bearing, 11. transmission shafts, 21. tooth hub bodies, 22. transmission external spliness, 23. tooth hub epitaxy parts.
Embodiment
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Automobile synchronizer assembly of the present invention, as shown in Figure 1, comprise tooth cover 1, tooth hub 2, in conjunction with gear ring 3 and synchronous conical ring, tooth overlaps 1 internal spline and tooth hub 2 external splines is connected with a joggle, and tooth overlaps 1 internal spline and matches in conjunction with gear ring 3 external splines, can engage each other, synchronous conical ring tooth hub 2 and in conjunction with gear ring 3 between.
Wherein, synchronous conical ring comprises interior conical ring 5, outer cone ring 6 and bipyramid ring 7, and interior conical ring 5 is connected with outer cone ring 6, and outer cone ring 6 is connected with tooth hub body 21, and bipyramid ring 7 is connected with in conjunction with gear ring 3; Interior conical ring 5 male cone (strobilus masculinus) and bipyramid ring 7 inner conical surface match, and outer cone ring 6 inner conical surface and bipyramid ring 7 male cone (strobilus masculinus) match, and namely synchronizer synchronizing process relies on the friction between these two groups of conical surfaces, makes tooth hub identical with in conjunction with the rotating speed between gear ring 3, reaches synchronous.
Further, the uniform some grooves of described tooth hub body 21 outer side wall circumference, be all connected with slide block 8 in groove, be provided with spring 9 bottom slide block 8, spring 9 one end is fixed on slide block 8, and the other end and bottom portion of groove abut against; Described outer cone ring 6 has the breach matched with slide block 8, slide block 8 energy moving card is located therein, and namely this slide block 8 role drives outer cone ring 6 and tooth hub 2 synchronous axial system.
Above technical characteristics be this automobile synchronizer assembly compared with prior art, do not belong to improvement and innovative point part, the shape that the application specifically mentions, structure are not limited in himself, and the existing technical characteristics that can realize same or similar function all can be applicable to the present invention.
This automobile synchronizer assembly has carried out improving and innovation mainly for tooth hub 2: described tooth hub 2 external splines is laid in tooth hub body 21 outer side wall, tooth hub body 21 1 end face forms tooth hub epitaxy part 23 along axis extension, and tooth hub epitaxy part 23 has the transmission external splines 22 matched with power intake gear inner spline on the outer side wall of end; Described tooth hub 2 central position has through hole in the axial direction.
Described tooth hub epitaxy part 23 external diameter is less than tooth hub body 21 external diameter.
The through-hole side wall that described tooth hub 2 central position is offered is smooth, and do not arrange internal spline, tooth hub 2 is set on transmission shaft 11 by bearing 10.
Part between described tooth hub epitaxy part 23 transmission external splines 22 and tooth hub body 21 is set with shifting gear 4 by bearing 10, the transmission shaft 11 of tooth hub 2 the other end is also set with shifting gear 4 by bearing 10, two shifting gears 4 all with can overlap 1 with tooth and to be intermeshingly fixedly connected with in conjunction with gear ring 3; Shifting gear 4 engages with the gear of output end matched with it respectively.
This automobile synchronizer assembly working principle is as follows: engine output power is passed in power intake gear graph 1 and does not mark, power intake gear is by driving tooth hub 2 to rotate with engaging of transmission external splines 22, when needing shift speed change, one of tooth hub 2, tooth cover 1 and the shifting gear 4 being arranged in its both sides is driven to combine by selector fork, by transmission of power to shifting gear 4, do not mark by gear of output end Fig. 1 of being meshed with this shifting gear 4, transmission of power is to output terminal the most at last again.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. an automobile synchronizer assembly, comprise tooth cover (1), tooth hub (2), in conjunction with gear ring (3) and synchronous conical ring, tooth cover (1) internal spline and tooth hub (2) external splines are connected with a joggle, and tooth cover (1) internal spline with match in conjunction with gear ring (3) external splines, can engage each other, synchronous conical ring is positioned at tooth hub (2) and in conjunction with between gear ring (3), it is characterized in that: described tooth hub (2) external splines is laid in tooth hub body (21) outer side wall, tooth hub body (21) one end face forms tooth hub epitaxy part (23) along axis extension, tooth hub epitaxy part (23) has the transmission external splines (22) matched with power intake gear inner spline on the outer side wall of end,
Described tooth hub (2) central position has through hole in the axial direction.
2. automobile synchronizer assembly according to claim 1, is characterized in that: described tooth hub epitaxy part (23) external diameter is less than tooth hub body (21) external diameter.
3. automobile synchronizer assembly according to claim 1 and 2, it is characterized in that: the through-hole side wall that described tooth hub (2) central position is offered is smooth, and tooth hub (2) is set on transmission shaft (11) by bearing (10).
4. automobile synchronizer assembly according to claim 1, it is characterized in that: synchronous conical ring comprises interior conical ring (5), outer cone ring (6) and bipyramid ring (7), interior conical ring (5) is connected with outer cone ring (6), outer cone ring (6) is connected with tooth hub body (21), and bipyramid ring (7) is connected with in conjunction with gear ring (3);
Interior conical ring (5) male cone (strobilus masculinus) and bipyramid ring (7) inner conical surface match, and outer cone ring (6) inner conical surface and bipyramid ring (7) male cone (strobilus masculinus) match.
5. automobile synchronizer assembly according to claim 4, it is characterized in that: the uniform some grooves of described tooth hub body (21) outer side wall circumference, slide block (8) is all connected with in groove, slide block (8) bottom is provided with spring (9), spring (9) one end is fixed on slide block (8), and the other end and bottom portion of groove abut against;
Described outer cone ring (6) has the breach matched with slide block (8), slide block (8) energy moving card is located therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510161195.2A CN104728295B (en) | 2015-04-07 | 2015-04-07 | Automobile synchronizer assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510161195.2A CN104728295B (en) | 2015-04-07 | 2015-04-07 | Automobile synchronizer assembly |
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| Publication Number | Publication Date |
|---|---|
| CN104728295A true CN104728295A (en) | 2015-06-24 |
| CN104728295B CN104728295B (en) | 2023-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510161195.2A Active CN104728295B (en) | 2015-04-07 | 2015-04-07 | Automobile synchronizer assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339336A (en) * | 2016-12-30 | 2017-11-10 | 江苏持华轴承有限公司 | Synchronous ring and bicyclic single conical surface synchronizer |
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| JP2005344849A (en) * | 2004-06-03 | 2005-12-15 | Toyota Motor Corp | Synchronizing device of clutch for transmission |
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| CN203009629U (en) * | 2012-11-16 | 2013-06-19 | 浙江吉利汽车研究院有限公司杭州分公司 | Baffle type synchronizer |
| US20130333998A1 (en) * | 2012-06-18 | 2013-12-19 | Sulzer Friction Systems (Germany) Gmbh | Friction ring, synchronizer unit, and gear changing transmission for a vehicle |
| CN103527665A (en) * | 2013-10-28 | 2014-01-22 | 武汉理工大学 | Double-circumference synchronizer with springs |
| CN103899670A (en) * | 2014-02-27 | 2014-07-02 | 天津天海同步科技股份有限公司 | Transmission synchronizer |
| CN204140688U (en) * | 2014-08-29 | 2015-02-04 | 长城汽车股份有限公司 | A kind of automotive transmission double-cone synchronizer |
| CN204647053U (en) * | 2015-04-07 | 2015-09-16 | 天津天海同步科技股份有限公司 | Automobile synchronizer assembly |
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2015
- 2015-04-07 CN CN201510161195.2A patent/CN104728295B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005344849A (en) * | 2004-06-03 | 2005-12-15 | Toyota Motor Corp | Synchronizing device of clutch for transmission |
| CN1908454A (en) * | 2005-08-05 | 2007-02-07 | 协和合金株式会社 | Synchronizer for transmission case |
| CN200968406Y (en) * | 2006-11-13 | 2007-10-31 | 温岭市正田汽车变速器有限公司 | Three conical surface type synchronization device of Vehicle manual speed-changer |
| CN200989436Y (en) * | 2006-12-29 | 2007-12-12 | 天津天海同步器有限公司 | A double-conical surface synchronizer |
| CN201606478U (en) * | 2009-09-30 | 2010-10-13 | 赣州经纬汽车零部件有限公司 | Copper ring outer-cone synchronizer |
| US20130333998A1 (en) * | 2012-06-18 | 2013-12-19 | Sulzer Friction Systems (Germany) Gmbh | Friction ring, synchronizer unit, and gear changing transmission for a vehicle |
| CN202790201U (en) * | 2012-08-30 | 2013-03-13 | 浙江吉利汽车研究院有限公司杭州分公司 | Limit structure of automobile unilateral synchronizer |
| CN203009629U (en) * | 2012-11-16 | 2013-06-19 | 浙江吉利汽车研究院有限公司杭州分公司 | Baffle type synchronizer |
| CN103527665A (en) * | 2013-10-28 | 2014-01-22 | 武汉理工大学 | Double-circumference synchronizer with springs |
| CN103899670A (en) * | 2014-02-27 | 2014-07-02 | 天津天海同步科技股份有限公司 | Transmission synchronizer |
| CN204140688U (en) * | 2014-08-29 | 2015-02-04 | 长城汽车股份有限公司 | A kind of automotive transmission double-cone synchronizer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339336A (en) * | 2016-12-30 | 2017-11-10 | 江苏持华轴承有限公司 | Synchronous ring and bicyclic single conical surface synchronizer |
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| Publication number | Publication date |
|---|---|
| CN104728295B (en) | 2023-08-29 |
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Address after: 301600 Jinhai Road, Jinghai Development Zone, Jinghai County, Tianjin 5 Applicant after: TIANJIN TANHAS TECHNOLOGY Co.,Ltd. Address before: 301600 Jinhai Road, Jinghai Development Zone, Jinghai County, Tianjin 5 Applicant before: TIANJIN TANHAS TECHNOLOGY Co.,Ltd. |
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