CN103899670A - Transmission synchronizer - Google Patents
Transmission synchronizer Download PDFInfo
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- CN103899670A CN103899670A CN201410068881.0A CN201410068881A CN103899670A CN 103899670 A CN103899670 A CN 103899670A CN 201410068881 A CN201410068881 A CN 201410068881A CN 103899670 A CN103899670 A CN 103899670A
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- face
- ring
- protruding key
- speed changer
- circumferentially
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Abstract
The invention provides a transmission synchronizer which comprises a gear sleeve, a gear hub, an outer conic ring, a combination gear ring and a spring. An inner spline and a friction conic face are arranged on the inner side face of the gear sleeve in the circumferential direction. An outer spline is arranged on the outer side face of the gear hub. The gear sleeve is arranged on the outer circumference of the gear hub in a sleeved mode through the splines. The outer side face of the outer conic ring is an outer conic face and protruding keys are evenly distributed on the inner side of the outer conic ring in the circumferential direction. Each protruding key is provided with a through groove and a protruding key locking structure. The inner side face of the combination gear ring is an inner conic face, a groove is formed in the inner conic face, and end face key grooves matched with the protruding keys are evenly formed in the large end face of the combination gear ring in the circumferential direction. The spring is a C-type steel ring and used for connecting the outer conic ring and the combination gear ring. The transmission synchronizer is small in number of constitute elements, low in cost, simple in structure and convenient to operate.
Description
Technical field
The invention relates to a kind of speed changer synchronizer, belongs to vehicle transmission technical field.
Background technique
At present, mostly adopt lock ring type synchronizer at home and abroad in automotive transmission, from single conical surface synchronizer to double taper synchronizer, multi-cone synchronizer, the element of synchronizer is more, complex structure, and the manufacture cost of synchronizer increases thereupon.Meanwhile, due to the narrow limitation in speed changer structure and space, be there is to certain limitation in the lifting of synchronizer performance.Along with driver is to gearshift the improving constantly of quality requirements, the combination property of speed changer needs constantly to promote, and synchronizer is as an important composition structure in speed changer, synchronizer to simplify the structure, operate lighting also urgently to be resolved hurrily.
Summary of the invention
For the deficiency of above existence, the problem that the invention will solve is to provide a kind of speed changer synchronizer, can effectively reduce synchronous shifting element, reduces costs, and improves with step gear shifting performance, makes shift process lighter.
For solving the problems of the technologies described above, the technological scheme that the invention adopts is: a kind of speed changer synchronizer is provided, it is characterized in that: comprise tooth cover, tooth hub, outer cone ring, in conjunction with gear ring and spring,
Described tooth cover inner side surface neutral position is circumferentially with internal spline, and described internal spline both sides are circumferentially with cone of friction,
Described tooth hub outer side surface is circumferentially with external splines, and it is outer also by spline joint that described tooth cover is set in tooth hub,
The outer side surface of described outer cone ring is male cone (strobilus masculinus), and inner side surface is circumferentially laid with protruding key, and described protruding keyboard is circumferentially with groove on the face of center of circle side, and two relative sides of protruding key are provided with protruding key keying structure,
The outer side surface of described combination gear ring is circumferentially with the external splines coordinating with described tooth cover internal spline, and inner side surface is inner conical surface, on inner conical surface, is circumferentially with groove near large end face side,
On large end end face in conjunction with gear ring, be circumferentially laid with the side keyway coordinating with described protruding key, side keyway both sides are provided with the large end face intersection of described combination gear ring the end face keying structure matching with described protruding key keying structure,
Described spring is " C " steel rings, and spring is stuck in groove and groove simultaneously, by described outer cone ring be coaxially connected in conjunction with gear ring.
Further, described internal spline is above described cone of friction, and cone of friction overlaps port side near internal spline side higher than tooth.
Further, two sides that described side keyway is relative are splayed shape, and the circumferential size of large end face side is greater than the circumferential size of opposite side.
Further, the circumferential size of described side keyway is greater than the circumferential size of described protruding key.
Further, described end face keying structure comprises two locking faces and one, and in conjunction with inclined-plane, two locking faces are parallel to each other, and be positioned in the middle of two locking faces, and connect respectively two locking faces in conjunction with inclined-plane.
Further, the surface of the protruding key keying structure of described protruding key bi-side is parallel with the surface of each self-corresponding described end face keying structure.
Further, described protruding key and side keyway are all no less than 3.
Further, described in one of them, the trailing flank neutral position of protruding key is longitudinally provided with a groove, for firm spring.
Further, one end of described spring opening is provided with hook, hook is hooked in the groove of protruding key, can make spring more firm.
Further, the male cone (strobilus masculinus) of described outer cone ring is provided with spiral chute, can increase the frictional force between cone of friction and male cone (strobilus masculinus).
Advantage and good effect that the invention has are: the element of this synchronizer is less, has lowered cost; The diameter that increases cone of friction, the synchronising torque of generation is larger; Non-notch on tooth hub, reduces heat treatment deformation, improves adhesive strength; Outer cone ring built-in convex key, is provided with side keyway in conjunction with gear ring, and both coordinate integrated stop, locking and ring function, simple in structure, operate light.
Brief description of the drawings
Fig. 1 is the structural representation of the invention;
Fig. 2 is the tooth nested structure schematic diagram of the invention;
Fig. 3 is the invention outer cone ring structural representation;
Fig. 4 is that the invention is in conjunction with gear ring structure schematic diagram;
Fig. 5 is the outer cone ring of the invention, assembling stereogram in conjunction with gear ring and spring.
In figure: 1 tooth cover; 1a cone of friction; 2 tooth hubs;
3 outer cone rings; 3a male cone (strobilus masculinus); 3b groove;
4 in conjunction with gear ring; 4a inner conical surface; 4b ring angle;
5 springs; 6 protruding keys; 7 side keyways;
8 grooves; 9 spiral chutes; 10 protruding key keying structures;
10a, 10b locking face; 10c is in conjunction with inclined-plane; 11 end face keying structures;
11a, 11b locking face 11c are in conjunction with inclined-plane; 12 internal splines;
13 grooves
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the invention is further described.
As shown in Figure 1, the speed changer synchronizer of the invention, comprises tooth cover 1, tooth hub 2, outer cone ring 3, in conjunction with gear ring 4 and spring 5.
The neutral position that tooth overlaps 1 inner side surface is circumferentially with internal spline 12, internal spline 12 both sides are circumferentially with cone of friction 1a, and internal spline, above cone of friction 1a, can make like this diameter of cone of friction larger, thereby can produce larger moment in friction process.Cone of friction 1a overlaps 1 port side near internal spline side higher than tooth.
As shown in Figures 2 and 3, the outer side surface of outer cone ring 3 is male cone (strobilus masculinus) 3a, and male cone (strobilus masculinus) 3a contacts cooperation with the cone of friction 1a of tooth cover 1, and the small end face side of male cone (strobilus masculinus) is near tooth cover 1.On male cone (strobilus masculinus) 3a, be also provided with spiral chute 9, the cone of friction 1a contact friction of male cone (strobilus masculinus) 3a and tooth cover 1 in synchronizing process, spiral chute 9 can destroy the oil film on cone of friction 1a, increasing friction force.
The inner side surface of outer cone ring 3 is circumferentially laid with three protruding keys 6, and protruding key 6 is all circumferentially with groove 3b on the end face of center of circle side, and the groove 3b on three protruding keys 6 is distributed on the circumference of circle of same and outer cone ring 3 concentrics.
As shown in Figure 4 and Figure 5, be inner conical surface 4a in conjunction with the inner side surface of gear ring 4, the close large end face side on inner conical surface 4a is provided with groove 8, and groove 8 place radius of a circles equate with the groove 3b place radius of a circle on three protruding keys 6.On large end end face in conjunction with gear ring 4, be circumferentially laid with 3 side keyways 7 that coordinate with protruding key 6.
End face keying structure 11 comprises two locking face 11a, 11b and one, and in conjunction with inclined-plane 11c, two locking face 11a, 11b are parallel to each other, and be positioned in the middle of two locking face 11a, 11b, and connect respectively two locking face 11a, 11b in conjunction with inclined-plane 11c.
Locking face 10a, the 10b of protruding key keying structure 10 with in conjunction with inclined-plane 10c respectively with locking face 11a, the 11b of end face keying structure 11 with parallel in conjunction with inclined-plane 11c.When protruding key is after the rotation of several angle, protruding key keying structure 10 contacts with end face keying structure 11, locking face 10a, 10b fit with locking face 11a, 11b respectively, in conjunction with the combination inclined-plane 11c laminating of inclined-plane 10c and end face keying structure 11, by outer cone ring 3 and in conjunction with gear ring 4 lockings.Outer cone ring 3 can pass to power in conjunction with gear ring 4 better by locking face 11a, 10b, 11a and 11b, and is inclined-plane in conjunction with inclined- plane 10c and 11c, has increased friction area, increases friction, and the vibrations can cushion contact simultaneously time, make locking process more level and smooth.
Further, in order to ensure the firm of spring 5, one end of spring 5 openings is provided with hook, the trailing flank neutral position of one of them protruding key 6 is longitudinally provided with a groove 13, when assembling, hook on spring 5 is hooked in the groove 13 of protruding key 6, can ensures that spring 5 is firmly connected with outer cone ring 3, effectively prevent that spring 5 from coming off.
The working principle of the present embodiment: before gearshift, tooth cover 1 and tooth hub 2 are with ω
1angular velocity rotate, in conjunction with gear ring 4, outer cone ring 3 and spring 5 with ω
2angular velocity rotate, ω
1and ω
2unequal, in shift process, tooth cover 1 produces end thrust F under selector fork effect, tooth overlaps the cone of friction 1a of 1 inner side surface and the male cone (strobilus masculinus) 3a of outer cone ring 3 contacts, produce frictional force, now spring 5 is stuck in the groove 8 in conjunction with gear ring 4, act on lower tooth cover 1 at spring 5 and temporarily stop axial motion, due to the frictional force effect between tooth cover 1 and outer cone ring 3, outer cone ring 3 rotates, the protruding key keying structure 10 of outer cone ring 3 contacts with the end face keying structure 11 in conjunction with gear ring 4 and forms locking, along with tooth cover 1 compresses gradually with outer cone ring 3, form synchronising torque, angular velocity difference fades away, tooth cover 1 and reach synchronous in conjunction with gear ring 4, subsequently, spring 5 is upwards compressed in week, under the effect of axial force, the protruding key 6 of outer cone ring 3 moves right along side keyway 7, spring 5 departs from groove 8 and axially moves right along the inner conical surface 4a in conjunction with gear ring 4, when outer cone ring 3 moves along ring angle 4b, outer cone ring 3 rotates backward, remove locking, tooth cover 1 is proceeded to move axially, complete and engaging in conjunction with gear ring 4, thereby complete shift process.
Above the embodiment of the invention is had been described in detail, but described content is only for the preferred embodiment of the invention, can not be considered to for limiting practical range of the present invention.All equalization variation and improvement etc. of doing according to the invention scope, within all should still belonging to this patent covering scope.
Claims (10)
1. a speed changer synchronizer, is characterized in that: comprise tooth cover (1), tooth hub (2), outer cone ring (3), in conjunction with gear ring (4) and spring (5),
Described tooth cover (1) inner side surface neutral position is circumferentially with internal spline (12), and described internal spline both sides are circumferentially with cone of friction (1a),
Described tooth hub (2) outer side surface is circumferentially with external splines, and it is outer also by spline joint that described tooth cover (1) is set in tooth hub (2),
The outer side surface of described outer cone ring (3) is male cone (strobilus masculinus) (1a), and inner side surface is circumferentially laid with protruding key (6), and described protruding keyboard is circumferentially with groove (3b) on the face of center of circle side, and (6) two relative sides of protruding key are provided with protruding key keying structure (10),
The outer side surface of described combination gear ring (4) is circumferentially with the external splines coordinating with described tooth cover internal spline, and inner side surface is inner conical surface (4a), on inner conical surface, is circumferentially with groove (8) near large end face side,
On large end end face in conjunction with gear ring (4), be circumferentially laid with the side keyway (7) coordinating with described protruding key (6), side keyway (7) both sides are provided with the large end face intersection of described combination gear ring (4) the end face keying structure (11) matching with described protruding key keying structure (10)
Described spring (5) is " C " steel rings, and spring (5) is stuck in groove and groove simultaneously, by described outer cone ring (3) be coaxially connected in conjunction with gear ring (4).
2. speed changer synchronizer according to claim 1, is characterized in that: described internal spline (12) is above described cone of friction (1a), and cone of friction (1a) overlaps port side near internal spline side higher than tooth.
3. speed changer synchronizer according to claim 1, is characterized in that: two sides that described side keyway (7) is relative are splayed shape, and the circumferential size of large end face side is greater than the circumferential size of opposite side.
4. speed changer synchronizer according to claim 1, is characterized in that: the circumferential size of described side keyway (7) is greater than the circumferential size of described protruding key (6).
5. speed changer synchronizer according to claim 1, it is characterized in that: described end face keying structure (11) comprises that two locking faces (11a, 11b) and one are in conjunction with inclined-plane (11c), two locking faces (11a, 11b) are parallel to each other, be positioned in the middle of two locking faces (11a, 11b) in conjunction with inclined-plane (11c), and connect respectively two locking faces (11a, 11b).
6. speed changer synchronizer according to claim 1, is characterized in that: the surface of the protruding key keying structure (10) of described protruding key (6) bi-side is parallel with the surface of each self-corresponding described end face keying structure (11).
7. speed changer synchronizer according to claim 1, is characterized in that: described protruding key 6) and side keyway (7) be all no less than 3.
8. according to the speed changer synchronizer described in claim 1 or 7, it is characterized in that: described in one of them, the trailing flank neutral position of protruding key (6) is longitudinally provided with a groove (13).
9. speed changer synchronizer according to claim 1, is characterized in that: one end of described spring (5) opening is provided with hook.
10. speed changer synchronizer according to claim 1, is characterized in that: the male cone (strobilus masculinus) of described outer cone ring (3) is provided with spiral chute (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410068881.0A CN103899670B (en) | 2014-02-27 | 2014-02-27 | A kind of transmission synchronizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410068881.0A CN103899670B (en) | 2014-02-27 | 2014-02-27 | A kind of transmission synchronizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103899670A true CN103899670A (en) | 2014-07-02 |
| CN103899670B CN103899670B (en) | 2016-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410068881.0A Active CN103899670B (en) | 2014-02-27 | 2014-02-27 | A kind of transmission synchronizer |
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| Country | Link |
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| CN (1) | CN103899670B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728295A (en) * | 2015-04-07 | 2015-06-24 | 天津天海同步科技股份有限公司 | Automobile synchronizer assembly |
| CN111156264A (en) * | 2019-12-19 | 2020-05-15 | 中国第一汽车股份有限公司 | Double-row-tooth synchronizer and gearbox |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4782929A (en) * | 1986-04-16 | 1988-11-08 | Porsche Aktiengesellschaft | Locking synchronizer for a gear transmission of a motor vehicle |
| US4809832A (en) * | 1986-12-18 | 1989-03-07 | Toyota Jidosha Kabushiki Kaisha | Gear synchronizer mechanism |
| CN1468346A (en) * | 2000-10-18 | 2004-01-14 | ��֪��е��ҵ��ʽ���� | Synchronizing spring and synchronizing mechanism |
| CN203822893U (en) * | 2014-02-27 | 2014-09-10 | 天津天海同步科技股份有限公司 | Transmission synchronizing device |
-
2014
- 2014-02-27 CN CN201410068881.0A patent/CN103899670B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4782929A (en) * | 1986-04-16 | 1988-11-08 | Porsche Aktiengesellschaft | Locking synchronizer for a gear transmission of a motor vehicle |
| US4809832A (en) * | 1986-12-18 | 1989-03-07 | Toyota Jidosha Kabushiki Kaisha | Gear synchronizer mechanism |
| CN1468346A (en) * | 2000-10-18 | 2004-01-14 | ��֪��е��ҵ��ʽ���� | Synchronizing spring and synchronizing mechanism |
| CN203822893U (en) * | 2014-02-27 | 2014-09-10 | 天津天海同步科技股份有限公司 | Transmission synchronizing device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728295A (en) * | 2015-04-07 | 2015-06-24 | 天津天海同步科技股份有限公司 | Automobile synchronizer assembly |
| CN104728295B (en) * | 2015-04-07 | 2023-08-29 | 天津天海同步科技有限公司 | Automobile synchronizer assembly |
| CN111156264A (en) * | 2019-12-19 | 2020-05-15 | 中国第一汽车股份有限公司 | Double-row-tooth synchronizer and gearbox |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103899670B (en) | 2016-08-17 |
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Address after: 301600 Jinhai Road, Jinghai Development Zone, Jinghai County, Tianjin 5 Patentee after: TIANJIN TANHAS TECHNOLOGY CO., LTD. Address before: 301600 Jinhai Road, Jinghai Development Zone, Jinghai County, Tianjin 5 Patentee before: Tianjin Tanhas Technology Co., Ltd. |
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