CN103899670B - A kind of transmission synchronizer - Google Patents
A kind of transmission synchronizer Download PDFInfo
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- CN103899670B CN103899670B CN201410068881.0A CN201410068881A CN103899670B CN 103899670 B CN103899670 B CN 103899670B CN 201410068881 A CN201410068881 A CN 201410068881A CN 103899670 B CN103899670 B CN 103899670B
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Abstract
The invention provides a kind of transmission synchronizer, including tooth set, tooth hub, outer cone ring, in conjunction with gear ring and spring, described tooth set medial surface is circumferentially with internal spline and cone of friction, tooth hub lateral surface is provided with external splines, tooth set is located on tooth hub excircle by spline housing, the lateral surface of outer cone ring is male cone (strobilus masculinus), medial surface circumference is laid with convex key, convex key is provided with groove and convex key locking structure, medial surface in conjunction with gear ring is inner conical surface, inner conical surface is provided with groove, it is laid with the side keyway coordinated with described convex key in conjunction with circumference on the big end end face of gear ring, described spring is " C " steel rings, outer cone ring is connected with combining gear ring.This transmission synchronizer element is few, low cost, simple in construction, operates light.
Description
Technical field
The invention relates to a kind of transmission synchronizer, belongs to technical field of automobile transmission.
Background technology
At present, automotive transmission at home and abroad mostly uses lock ring type lock unit, from single conical surface lock unit to Double-conical-surface
Lock unit, multi-cone synchronizer, the element of lock unit is more, and structure is complicated, and the manufacturing cost of lock unit increases therewith.With
Time, due to speed changer structure and the limitation in space, there is a definite limitation in the lifting to synchronizer performance.Along with driver couple
What shift quality required improves constantly, and the combination property of variator needs constantly to promote, and lock unit is as in variator one
Important composition structure, the simplifying the structure of lock unit, to operate lighting the most urgently to be resolved hurrily.
Summary of the invention
For with present on not enough, the problem that the invention is to be solved is to provide a kind of transmission synchronizer, energy
Enough effectively minimizing synchronizes shifting element, reduces cost, improves with step gear shifting performance, make shift process lighter.
For solving above-mentioned technical problem, the invention the technical scheme is that a kind of transmission synchronizer of offer,
It is characterized in that: include tooth set, tooth hub, outer cone ring, combine gear ring and spring,
Described tooth set medial surface centre position is circumferentially with internal spline, and described internal spline both sides are circumferentially with cone of friction,
Described tooth hub lateral surface is circumferentially with external splines, and described tooth set is set in outside tooth hub and is connected by spline,
The lateral surface of described outer cone ring is male cone (strobilus masculinus), and medial surface circumference is laid with convex key, and described convex keyboard is to side, the center of circle
Face on be circumferentially with groove, two relative sides of convex key are provided with convex key locking structure,
The lateral surface of described combination gear ring is circumferentially with the external splines coordinated with described tooth set internal spline, and medial surface is inner cone
Face, inner conical surface is circumferentially with groove near large end face side,
It is laid with the side keyway coordinated with described convex key, side keyway both sides in conjunction with circumference on the big end end face of gear ring
The end face locking structure matched with described convex key locking structure it is provided with the large end face intersection of described combination gear ring,
Described spring is " C " steel rings, and spring is stuck in groove and groove simultaneously, by described outer cone ring with combine gear ring with
Axle connects.
Further, described internal spline is above described cone of friction, and cone of friction is higher than tooth set near internal spline side
Port side.
Further, two sides that described side keyway is relative are splayed, and the circumferential size of large end face side is more than
The circumferential size of opposite side.
Further, the circumferential size of described side keyway is more than the circumferential size of described convex key.
Further, described end face locking structure include two locking faces and one combine inclined-plane, two locking faces are mutual
Parallel, it is positioned in the middle of two locking faces in conjunction with inclined-plane, and connects two locking faces respectively.
Further, the surface of the convex key locking structure of described convex key two sides is tied with each self-corresponding described end face locking
The surface of structure is parallel.
Further, described convex key and side keyway are no less than 3.
Further, the trailing flank centre position of one of them described convex key is longitudinally provided with a groove, is used for consolidating spring.
Further, one end of described spring opening part is provided with hook, is hooked on by hook in the groove of convex key, can make spring
More firm.
Further, the male cone (strobilus masculinus) of described outer cone ring is provided with helicla flute, can increase between cone of friction and male cone (strobilus masculinus)
Frictional force.
The invention has the advantage that with good effect: the element of this synchronizer is less, reduces cost；
Increasing the diameter of cone of friction, the synchronising torque of generation is bigger；Non-notch on tooth hub, reduces heat treatment deformation, improves and combines by force
Degree；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, structure letter
Single, operate light.
Accompanying drawing explanation
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 combines gear ring structure schematic diagram；
Fig. 5 is the outer cone ring of the invention, combines the assembling stereogram of gear ring and spring.
In figure: 1 tooth set；1a cone of friction；2 tooth hubs；
3 outer cone rings；3a male cone (strobilus masculinus)；3b groove；
4 combine gear ring；4a inner conical surface；4b ring angle；
5 springs；6 convex keys；7 side keyways；
8 grooves；9 helicla flutes；10 convex key locking structures；
10a, 10b locking face；10c combines inclined-plane；11 end face locking structures；
11a, 11b locking face 11c combines inclined-plane；12 internal splines；
13 grooves
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the invention is further described.
As it is shown in figure 1, the transmission synchronizer of the invention, including tooth set 1, tooth hub 2, outer cone ring 3, combine gear ring
4 and spring 5.
Tooth overlaps the centre position of 1 medial surface and is circumferentially with internal spline 12, and internal spline 12 both sides are circumferentially with cone of friction 1a,
And internal spline is above cone of friction 1a, so so that the diameter of cone of friction is bigger, thus permissible in friction process
Produce bigger moment.Cone of friction 1a overlaps 1 port side near internal spline side higher than tooth.
Tooth hub 2 lateral surface is provided with external splines, and tooth set 1 is set on the excircle of tooth hub 2, and by spline with tooth hub 2 even
Connect.
As shown in Figures 2 and 3, the lateral surface of outer cone ring 3 is male cone (strobilus masculinus) 3a, and male cone (strobilus masculinus) 3a overlaps the cone of friction 1a of 1 with tooth
Contact coordinates, and the small end face side of male cone (strobilus masculinus) overlaps 1 near tooth.Helicla flute 9 it is additionally provided with, male cone (strobilus masculinus) in synchronizing process on male cone (strobilus masculinus) 3a
3a contacts friction with the cone of friction 1a of tooth set 1, and helicla flute 9 can destroy the oil film on cone of friction 1a, increasing friction force.
The medial surface circumference of outer cone ring 3 is laid with three convex keys 6, and convex key 6 sets towards all circumferences on the end face of side, the center of circle
Groove 3b, the groove 3b on three convex keys 6 is had to be distributed on the circumference of the same circle with outer cone ring 3 concentric.
As shown in Figure 4 and Figure 5, the medial surface in conjunction with gear ring 4 is inner conical surface 4a, the close large end face side on inner conical surface 4a
Being provided with groove 8, the radius of the groove 3b place circle on the radius of groove 8 place circle and three convex keys 6 is equal.In conjunction with gear ring 4
On big end end face, circumference is laid with 3 side keyways 7 coordinated with convex key 6.
Side keyway 7 to be shaped as class trapezoidal, two opposite flank is splayed, forms ring angle 4b, side keyway 7
The circumferential size of large end face side is bigger than the circumferential size of small end face side, and the circumferential size of side keyway 7 is more than the circumferential chi of convex key 6
Very little, say, that convex key 6 can carry out contacting with side keyway 7 after certain angle rotates again.Side keyway 7 both sides and combination
The large end face intersection of gear ring 4 is provided with the end face locking structure 11 matched in convex key locking structure, permissible in synchronizing process
Convex key locking structure 10 on convex key 6 is combined, and plays latch functions.
End face locking structure 11 include two locking face 11a, 11b and one combine inclined-plane 11c, two locking face 11a,
11b is parallel to each other, and is positioned in the middle of two locking faces 11a, 11b in conjunction with inclined-plane 11c, and connects two locking faces 11a, 11b respectively.
Locking face 10a, 10b of convex key locking structure 10 and combine inclined-plane 10c respectively with the locking of end face locking structure 11
Face 11a, 11b are parallel with combining inclined-plane 11c.When convex key is after the rotation of certain angle, convex key locking structure 10 is locked with end face
Only structure 11 contacts, and locking face 10a, 10b fit with locking face 11a, 11b respectively, in conjunction with inclined-plane 10c and end face locking structure 11
Combination inclined-plane 11c laminating, by outer cone ring 3 with combine gear ring 4 locking.Outer cone ring 3 is by locking face 11a, 10b, 11a and 11b
Can preferably transmit the force to combine gear ring 4, and combining inclined-plane 10c and 11c is inclined-plane, increases friction area, increase rubs
Wipe, locking process can be made more smooth with vibrations during snubber contact simultaneously.
Spring 5 is " C " steel rings, is stuck in side keyway 7 by convex key 6, and spring 5 is stuck in groove 3b simultaneously during assembling
With in groove 8, by outer cone ring 3 with to combine gear ring 4 coaxially connected, as shown in Figure 5.
Further, in order to ensure the firm of spring 5, one end of spring 5 opening part is provided with hook, one of them convex key 6
Trailing flank centre position is longitudinally provided with a groove 13, during assembling, is hooked on by the hook on spring 5 in the groove 13 of convex key 6, it is ensured that
Spring 5 is firm with outer cone ring 3 to be connected, and effectively prevents spring 5 from coming off.
The operation principle of the present embodiment: before gearshift, tooth set 1 and tooth hub 2 are with ω1Angular velocity rotate, in conjunction with gear ring 4, outer
Conical ring 3 and spring 5 are with ω2Angular velocity rotate, ω1And ω2Unequal, in shift process, tooth set 1 is under selector fork effect
Producing axial thrust F, the male cone (strobilus masculinus) 3a of cone of friction 1a and outer cone ring 3 that tooth overlaps 1 medial surface contacts, and produces frictional force, now
Spring 5 is stuck in the groove 8 combining gear ring 4, acts on lower tooth set 1 at spring 5 and temporarily ceases axially-movable, owing to tooth set 1 is with outer
Frictional force effect between conical ring 3, outer cone ring 3 rotates, and the convex key locking structure 10 of outer cone ring 3 and the end face combining gear ring 4 are locked
Only structure 11 contact forms locking, along with tooth set 1 gradually compresses with outer cone ring 3, forms synchronising torque, and angular velocity difference gradually disappears
Losing, tooth set 1 reaches to synchronize with combining gear ring 4, and subsequently, spring 5 is compressed in the circumferential, under the effect of axial force, and outer cone ring 3
Convex key 6 move right along side keyway 7, spring 5 departs from groove 8 and transports the most to the right along the inner conical surface 4a combining gear ring 4
Dynamic, while outer cone ring 3 moves along ring angle 4b, outer cone ring 3 rotates backward, and releases locking, and tooth set 1 proceeds axially to move
Dynamic, complete and engaging of combining gear ring 4, thus complete shift process.
Above the embodiment of the invention is described in detail, but described content has been only the preferable of the invention
Embodiment, it is impossible to be considered the practical range for limiting the present invention.All impartial changes made according to the invention scope with
Improve, within all should still belonging to this patent covering scope.
Claims (9)
1. a transmission synchronizer, it is characterised in that: include tooth set (1), tooth hub (2), outer cone ring (3), combine gear ring (4)
With spring (5),
Described tooth set (1) medial surface centre position is circumferentially with internal spline (12), and described internal spline both sides are circumferentially with cone of friction
Face (1a),
Described tooth hub (2) lateral surface is circumferentially with external splines, and described tooth set (1) is set in tooth hub (2) and outward and is connected by spline,
The lateral surface of described outer cone ring (3) is male cone (strobilus masculinus) (3a), and medial surface circumference is laid with convex key (6), described convex keyboard to
Being circumferentially with groove (3b) on the face of side, the center of circle, (6) two relative sides of convex key are provided with convex key locking structure (10),
The lateral surface of described combination gear ring (4) is circumferentially with the external splines coordinated with described tooth set internal spline, and medial surface is inner cone
Face (4a), inner conical surface is circumferentially with groove (8) near large end face side,
It is laid with the side keyway (7) coordinated with described convex key (6), straight end-face key in conjunction with circumference on the big end end face of gear ring (4)
The big end face intersection of groove (7) both sides and described combination gear ring (4) is provided with and matches with described convex key locking structure (10)
End face locking structure (11),
Described spring (5) is " C " steel rings, and spring (5) is stuck in groove and groove simultaneously, by described outer cone ring (3) and combination
Gear ring (4) is coaxially connected；
Described end face locking structure (11) include two locking faces (11a, 11b) and one combine inclined-plane (11c), two locking faces
(11a, 11b) is parallel to each other, and is positioned in the middle of two locking faces (11a, 11b) in conjunction with inclined-plane (11c), and connects two lockings respectively
Face (11a, 11b).
Transmission synchronizer the most according to claim 1, it is characterised in that: described internal spline (12) rubs above described
Wipe the conical surface (1a), and cone of friction (1a) overlaps port side near internal spline side higher than tooth.
Transmission synchronizer the most according to claim 1, it is characterised in that: two that described side keyway (7) is relative
Side is splayed, and the circumferential size of large end face side is more than the circumferential size of small end face side.
Transmission synchronizer the most according to claim 1, it is characterised in that: the circumferential size of described side keyway (7)
Circumferential size more than described convex key (6).
Transmission synchronizer the most according to claim 1, it is characterised in that: the convex key-lock of described convex key (6) two sides
Only the surface of structure (10) is parallel with the surface of each self-corresponding described end face locking structure (11).
Transmission synchronizer the most according to claim 1, it is characterised in that: described convex key (6) and side keyway (7) are equal
No less than 3.
7. according to the transmission synchronizer described in claim 1 or 6, it is characterised in that: after one of them described convex key (6)
Centre position, side is longitudinally provided with a groove (13).
Transmission synchronizer the most according to claim 1, it is characterised in that: on one end of described spring (5) opening part
It is provided with hook.
Transmission synchronizer the most according to claim 1, it is characterised in that: set on the male cone (strobilus masculinus) of described outer cone ring (3)
There is helicla flute (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 |
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| Publication Number | Publication Date |
|---|---|
| CN103899670A CN103899670A (en) | 2014-07-02 |
| CN103899670B true CN103899670B (en) | 2016-08-17 |
Family
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| 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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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728295B (en) * | 2015-04-07 | 2023-08-29 | 天津天海同步科技有限公司 | Automobile synchronizer assembly |
| CN111156264B (en) * | 2019-12-19 | 2021-08-31 | 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 |
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| Publication number | Publication date |
|---|---|
| CN103899670A (en) | 2014-07-02 |
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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. |