CN106015382B - High pulling torque synchronizer - Google Patents
High pulling torque synchronizer Download PDFInfo
- Publication number
- CN106015382B CN106015382B CN201610465362.7A CN201610465362A CN106015382B CN 106015382 B CN106015382 B CN 106015382B CN 201610465362 A CN201610465362 A CN 201610465362A CN 106015382 B CN106015382 B CN 106015382B
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- ring
- tooth
- boss
- gear ring
- spline
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/02—Arrangements for synchronisation, also for power-operated clutches
- F16D23/04—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch
- F16D23/06—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch and a blocking mechanism preventing the engagement of the main clutch prior to synchronisation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/02—Arrangements for synchronisation, also for power-operated clutches
- F16D23/025—Synchro rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/02—Arrangements for synchronisation, also for power-operated clutches
- F16D23/04—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch
- F16D23/06—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch and a blocking mechanism preventing the engagement of the main clutch prior to synchronisation
- F16D2023/0625—Details of members being coupled, e.g. gears
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/02—Arrangements for synchronisation, also for power-operated clutches
- F16D23/04—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch
- F16D23/06—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch and a blocking mechanism preventing the engagement of the main clutch prior to synchronisation
- F16D2023/0656—Details of the tooth structure; Arrangements of teeth
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
A kind of high pulling torque synchronizer,Including tooth hub,Tooth hub overcoat set with teeth,The both sides of tooth hub are respectively disposed with a shifting gear,One is respectively equipped with the inner outer wall of two shifting gears and combines gear ring,A locking gear ring is cased with respectively outside two basic change gear ring,A synchronous ring is respectively installed with outside two locking gear rings,The inner conical surface that the male cone (strobilus masculinus) of synchronous ring covers with tooth is engaged,Spline tooth is along the circumferential direction provided with the inner surface of synchronous ring,Flank and locking surface are respectively equipped with spline tooth,The outer surface of locking gear ring is provided with the spline teeth groove being engaged with spline tooth,Spline teeth groove confined planes are sequentially provided with from inside to outside on the inner side of spline teeth groove and spline tooth socket lock stops face,The outer surface of locking gear ring is provided with boss,Boss top surface includes boss arc surface and boss intermediate incline,The outer surface coaxial line of boss arc surface and locking gear ring is arranged,The position that elastic trim ring is corresponded on inner conical surface is provided with the reseting groove that can be resetted with dynamic elasticity trim ring.Suitable for gearbox.
Description
Technical field
The present invention relates to synchronizer field, more particularly to a kind of high pulling torque synchronizer.
Background technology
For gearbox in gear shift, the rotating speed of two gear tooths often can be asynchronous, if positively engaging, will result between cog
It strong impact and ear-piercing noise, can not only hinder to hang shelves, but also gear teeth end wear can be aggravated.Therefore, during gear shift urgently
The problem of to be solved, is ensuring that the rotating speed Tong Walk of a pair of gear tooths to be engaged of selected gear, then just generates synchronization
Device.
Synchronizer is the important component of automotive transmission, it make synchronizer input, output par, c synchronous after in conjunction with, from
And impact and noise when reducing gear shift, mitigate berth-changing strength so that gear shift smoothes out, light, mitigates the fatigue of driver, extends
The life-span of speed changer, acceleration and economy when improving vehicle safety and riding comfort and improving vehicle starting
Play an important role.Critical component of the synchronizer as speed changer, its performance directly affect shift control mechanism
Performance, speed changer is when putting into gear, if net synchronization capability is insufficient, can produce impact of putting into gear, influence smooth gear shifting and driving comfort
Property.
As people are to vehicle energy saving environmental protection and the raising of lightweight requirements, while size by speed changer and quality limit
System, it is desirable to synchronizer still is able to synchronize engagement, smooth-going gear shift fast and reliablely, while has bigger synchronous capacity, this
The design all to synchronizer proposes higher requirement a bit.
At present, Chinese patent CN201610142662.1 discloses a kind of short stroke synchronizer, including tooth hub, tooth hub overcoat
Set with teeth, the both sides of tooth hub are respectively disposed with a shifting gear, one are respectively equipped with the inner outer wall of two shifting gears
With reference to gear ring, a locking gear ring is cased with outside two basic change gear ring respectively, a synchronization is respectively installed with outside two locking gear rings
Ring, the male cone (strobilus masculinus) of synchronous ring are engaged with the inner conical surface that tooth covers, and spline tooth is along the circumferential direction provided with the inner surface of synchronous ring, flower
Flank and locking surface are respectively equipped with key teeth, the outer surface of locking gear ring is provided with the spline teeth groove being engaged with spline tooth,
Spline teeth groove confined planes are sequentially provided with from inside to outside on the inner side of spline teeth groove and spline tooth socket lock stops face, locking gear ring
Outer surface is provided with the boss that top surface is inclined-plane, and boss is arranged with the dislocation of spline teeth groove, corresponding same on the outer surface of locking gear ring
Position on the inside of step ring is provided with spacing back-up ring, and the position on the outside of synchronous ring is corresponded on the outer surface of locking gear ring and is provided with elasticity pressure
Circle.Synchronizer gearshift performance is good and shift time is short, but due to all inclined-planes of the top surface of boss, so elastic trim ring is to same
All the time there is thrust in step ring, so when vehicle traveling is jolted, the problem of out of supply easily occurs.
_____
The content of the invention
The invention aims to overcome the shortcomings of above-mentioned background technology, there is provided a kind of reliable and stable high pulling torque is synchronous
Device.
In order to realize the above object a kind of high pulling torque synchronizer provided by the invention, including tooth hub, the tooth hub slide outside
It is set with set with teeth, the both sides of the tooth hub are respectively disposed with a shifting gear, on the inner outer wall of two shifting gears
One is fixed with respectively and combines gear ring, and a locking gear ring, the locking tooth are respectively installed with outside two combination gear rings
The combination external splines groove of the locking internal spline of circle and the combination gear ring is linked, and one is respectively installed with outside two locking gear rings
Synchronous ring, the male cone (strobilus masculinus) of the synchronous ring are engaged with the inner conical surface that the tooth covers, on the inner surface of the synchronous ring circumferentially
Direction is provided with spline tooth, is respectively equipped with flank and locking surface on the spline tooth, along circle on the outer surface of the locking gear ring
Circumferential direction is provided with the spline teeth groove being engaged with the spline tooth, and the spline teeth groove is set successively from inside to outside on inner side
There are spline teeth groove confined planes and spline tooth socket lock to stop face, the spline tooth socket lock stops face and is engaged with the locking surface, the flower
Key teeth groove confined planes are engaged with the flank, and the position on the outside of the synchronous ring is corresponded on the outer surface of the locking gear ring
Provided with the elastic trim ring resetted for the synchronous ring, boss, institute are along the circumferential direction provided with the outer surface of the locking gear ring
Stating the top surface of boss includes boss arc surface and boss intermediate incline, described boss intermediate incline one end and the locking gear ring
Outer surface connects, and the boss intermediate incline other end connects with the boss arc surface, the boss arc surface and the lock
Only the outer surface coaxial line arrangement of gear ring, the boss are arranged with spline teeth groove dislocation, it is corresponding on the inner conical surface described in
The position of elastic trim ring is provided with the reseting groove that the elastic trim ring can be driven to reset.
By the structure for being designed to be spliced by boss arc surface and boss intermediate incline by the top surface of boss, so,
When put into gear end after, elastic trim ring is located on boss arc surface, and now, thrust is not present to synchronous ring in elastic trim ring, so as to
It ensure that the problem of out of supply is less likely to occur this synchronizer when vehicle traveling is jolted；And when plucking gear, reseting groove elder generation band is moved
Property trim ring reset on boss intermediate incline, then again by elastic trim ring itself elastic force realize automatically reset.
In such scheme, the axial length of the boss intermediate incline is less than the sliding stroke of the synchronous ring.
In such scheme, the width of the reseting groove is more than the thickness of the elastic trim ring outer radius.
In such scheme, the position on the inside of the synchronous ring is corresponded on the outer surface of the locking gear ring and is provided with for preventing
The confined planes that only the synchronous ring comes off, it is clearance fit state between the locking internal spline and the combination external splines groove,
The position on the inside of the locking gear ring is corresponded on the outer surface of the combination gear ring and is provided with the limit for being used for positioning the locking gear ring
Position back-up ring；During neutral gear, the spline tooth be located at the spline teeth groove the inner at, and the spline tooth with it is corresponding described spacing
Face is offseted, and the elastic trim ring is pressed in the end face outside of the synchronous ring, and the elastic trim ring is located at the boss transition
On inclined-plane.By designing confined planes on the outer surface of locking gear ring, confined planes and locking gear ring are monolithic construction, so,
Be not in the caducous problem of position limiting structure compared with the position limiting structure of plug-in, so as to improve the reliability of this synchronizer and
Stability；Simultaneously as confined planes and locking gear ring monolithic construction is designed to, so being tieed up for ease of the dismounting in later stage
Shield, it need to will be designed as clearance fit state between locking internal spline and combination external splines groove and position locking tooth is drawn a circle to approve by limiting block
Circle；Prevent tooth set from sliding excessive effect moreover, the spacing back-up ring added can also play.
In such scheme, the confined planes are arranged with spline teeth groove dislocation, on the outer surface of the locking gear ring
The position of the corresponding confined planes is provided with the holding tank for the spline tooth for being used to accommodate correspondence position.By designing holding tank,
So it is easy to the processing of confined planes, reduces cost.
In such scheme, the spacing back-up ring is by inserting mode on the outer surface of the combination gear ring；Institute
State the position corresponded on the outer surface with reference to gear ring on the inside of the locking gear ring and be along the circumferential direction provided with socket, the spacing back-up ring
It is inserted into the socket.
In such scheme, the spacing back-up ring is the back-up ring of hatch frame；The quantity of the spacing back-up ring is at least one
It is individual.
In such scheme, the inner face of the locking gear ring is provided with the pockets for being used for accommodating tooth set.
In such scheme, the shifting gear is consolidated with the corresponding combination gear ring by spline mode or welding manner
Fixed connection.
In such scheme, the position that the boss is corresponded on the inner surface of the synchronous ring is provided with the avoidance boss
Escape groove.
The beneficial effect that technical scheme provided by the invention is brought is：
1st, by the structure for being designed to be spliced by boss arc surface and boss intermediate incline by the top surface of boss, this
Sample, when put into gear end after, elastic trim ring is located on boss arc surface, and now, thrust is not present to synchronous ring in elastic trim ring, from
And it ensure that, when vehicle traveling is jolted, the problem of out of supply is less likely to occur this synchronizer；And when plucking gear, reseting groove first drives
Elastic trim ring is reset on boss intermediate incline, is then realized and automatically reset by the elastic force of elastic trim ring itself again；
2nd, by designing confined planes on the outer surface of locking gear ring, confined planes and locking gear ring are monolithic construction, this
Sample, be not in the caducous problem of position limiting structure, so as to improve the reliability of this synchronizer compared with the position limiting structure of plug-in
And stability；Simultaneously as confined planes and locking gear ring monolithic construction is designed to, so being tieed up for ease of the dismounting in later stage
Shield, it need to will be designed as clearance fit state between locking internal spline and combination external splines groove and position locking tooth is drawn a circle to approve by limiting block
Circle；Prevent tooth set from sliding excessive effect moreover, the spacing back-up ring added can also play；
3rd, by designing holding tank, so it is easy to the processing of confined planes, reduces cost.
The present invention is compared with the prior art, and fully shows that it is advantageous in that：It is not easy out of supply, securely and reliably, stability is high
And cost is low etc..
Brief description of the drawings
Fig. 1 is the structural representation when present invention is in neutral position state；
When Fig. 2 is neutral position state, the position relationship structural representation of spline tooth and spline teeth groove；
Fig. 3 is the strabismus structural representation of tooth set；
Fig. 4 is the strabismus structural representation of synchronous ring；
Fig. 5 is the cross-sectional view of synchronous ring；
Fig. 6 is the strabismus structural representation of locking gear ring；
Fig. 7 is the partial enlargement structural representation when present invention is in the presynchronization stage；
When Fig. 8 is the presynchronization stage, the position relationship structural representation of spline tooth and spline teeth groove；
Fig. 9 is the partial enlargement structural representation when present invention is in the locking stage；
When Figure 10 is the locking stage, the position relationship structural representation of spline tooth and spline teeth groove；
Figure 11 is the partial enlargement structural representation when present invention is in synchronous phase；
When Figure 12 is synchronous phase, the position relationship structural representation of spline tooth and spline teeth groove；
Figure 13 is the partial enlargement structural representation when present invention is in combination stage；
When Figure 14 is combination stage, the position relationship structural representation of spline tooth and spline teeth groove.
In figure：Tooth hub 1, tooth set 2, inner conical surface 2a, reseting groove 2a1, tooth set internal spline end face outside 2b, shifting gear 3, knot
Gear ring 4 is closed, it is spacing with reference to external splines groove 4a, socket 4b, locking gear ring 5, locking internal spline 5a, spline teeth groove 5b, spline teeth groove
Face 5b1, spline tooth socket lock stop face 5b2, boss 5c, boss arc surface 5c1, boss intermediate incline 5c2, confined planes 5d, holding tank
5d1, pockets 5e, synchronous ring 6, male cone (strobilus masculinus) 6a, spline tooth 6b, flank 6b1, locking surface 6b2, inner side end 6c, outside
End face 6d, escape groove 6e, spacing back-up ring 7, elastic trim ring 8.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the present invention is described in further detail, but the embodiment should not be construed as pair
The limitation of the present invention.
Embodiment：A kind of high pulling torque synchronizer, including tooth hub 1, the 1 outer slip cap of tooth hub is equipped with tooth set 2, the tooth hub
1 both sides are respectively disposed with a shifting gear 3, and one is fixed with respectively on the inner outer wall of two shifting gears 3
With reference to gear ring 4, a locking gear ring 5 is respectively installed with outside two combination gear rings 4, is spent in the locking of the locking gear ring 5
The combination external splines groove 4a of key 5a and the combination gear ring 4 is linked, and a synchronous ring is respectively installed with outside two locking gear rings 5
6, the male cone (strobilus masculinus) 6a of the synchronous ring 6 is engaged with the inner conical surface 2a of tooth set 2, along circle on the inner surface of the synchronous ring 6
Circumferential direction is provided with spline tooth 6b, the spline tooth 6b and is respectively equipped with flank 6b1 and locking surface 6b2, the locking gear ring 5
The spline teeth groove 5b being engaged with the spline tooth 6b, side inner the spline teeth groove 5b are along the circumferential direction provided with outer surface
Spline teeth groove confined planes 5b1 is sequentially provided with face from inside to outside and spline tooth socket lock stops face 5b2, the spline tooth socket lock stops face
5b2 is engaged with the locking surface 6b2, and the spline teeth groove confined planes 5b1 is engaged with the flank 6b1, the locking
The position that the outside of synchronous ring 6 is corresponded on the outer surface of gear ring 5 is provided with the elastic trim ring 8 for being used for the synchronous reset of ring 6, institute
State on the outer surface of locking gear ring 5 the along the circumferential direction top surface provided with boss 5c, the boss 5c include boss arc surface 5c1 and
Boss intermediate incline 5c2, described boss intermediate incline 5c2 one end connect with the outer surface smoother transition of the locking gear ring 5, institute
State the boss intermediate incline 5c2 other ends and seamlessly transitted with the boss arc surface 5c1 and connected, the boss arc surface 5c1 and institute
The outer surface coaxial line arrangement of locking gear ring 5 is stated, the boss 5c and spline teeth groove 5b dislocation is arranged, the inner conical surface 2a
The position of the upper correspondence elastic trim ring 8 is provided with the reseting groove 2a1 that the elastic trim ring 8 can be driven to reset.
Pass through the knot for being designed to be spliced by boss arc surface 5c1 and boss intermediate incline 5c2 by boss 5c top surface
Structure, so, when put into gear end after, elastic trim ring 8 is located on boss arc surface 5c1, and now, elastic trim ring 8 is not deposited to synchronous ring 6
In thrust, so as to ensure that the problem of out of supply is less likely to occur this synchronizer when vehicle traveling is jolted；And when plucking gear,
First band dynamic elasticity trim ring 8 is reset on boss intermediate incline 5c2 reseting groove 2a1, then real by the elastic force of elastic trim ring 8 itself again
Now automatically reset.
Above-mentioned boss intermediate incline 5c2 axial length is less than the sliding stroke of the synchronous ring 6.The number of the boss 5c
Amount is at least the 3 and boss 5c circumferencial direction intervals along locking gear ring 5 and is evenly arranged.The width of the reseting groove 2a1 is more than
The thickness of the outer radius of elastic trim ring 8.
The position that the inner side of synchronous ring 6 is corresponded on the outer surface of above-mentioned locking gear ring 5 is provided with for preventing the synchronization
It is clearance fit state between confined planes 5d, the locking internal spline 5a and the combination external splines groove 4a that ring 6 comes off, it is described
The position that the inner side of locking gear ring 5 is corresponded on outer surface with reference to gear ring 4 is provided with for positioning the spacing of the locking gear ring 5
Back-up ring 7；During neutral gear, the spline tooth 6b be located at the spline teeth groove 5b the inner at, and the part spline tooth 6b with it is corresponding
The confined planes 5d offset, the elastic trim ring 8 is pressed on the end face outside 6d of the synchronous ring 6, the elastic trim ring 8
On the boss intermediate incline 5c2.By designing confined planes 5d, confined planes 5d and lock on the outer surface of locking gear ring 5
Only gear ring 5 is monolithic construction, is not in the caducous problem of position limiting structure compared with the position limiting structure of plug-in so, so as to
Improve the reliability and stability of this synchronizer；Simultaneously as confined planes 5d and locking gear ring 5 monoblock type knot is designed to
Structure, so for ease of the demolition and maintenance in later stage, it need to match somebody with somebody gap is designed as between locking internal spline 5a and combination external splines groove 4a
Conjunction state simultaneously positions locking gear ring 5 by spacing back-up ring 7；Moreover, the spacing back-up ring 7 added, which can also play, prevents the sliding of tooth set 2
Excessive effect.
Above-mentioned confined planes 5d and spline teeth groove 5b dislocation is arranged, on the outer surface of the locking gear ring 5 described in correspondence
Confined planes 5d position is provided with the holding tank 5d1 for the spline tooth 6b for being used to accommodate correspondence position.By designing holding tank
5d1, so it is easy to confined planes 5d processing, reduces cost.
Above-mentioned spacing back-up ring 7 is by inserting mode on the outer surface of the combination gear ring 4；The combination gear ring 4
Outer surface on correspond to the position of the inner side of the locking gear ring 5 and be along the circumferential direction provided with socket 4b, the spacing back-up ring 7 is inserted into
In the socket 4b.The spacing back-up ring 7 is the back-up ring of hatch frame；The quantity of the spacing back-up ring 7 is at least one.
The inner face of above-mentioned locking gear ring 5 is provided with the pockets 5e for being used for accommodating tooth set 2.
Above-mentioned shifting gear 3 is fixedly connected with the corresponding combination gear ring 4 by spline mode or welding manner.
The position that the boss 5c is corresponded on the inner surface of above-mentioned synchronous ring 6 is provided with the escape groove for avoiding the boss 5c
6e。
The course of work of this synchronizer is as follows：
In neutral position state, the tooth set internal spline of tooth set 2 engages with the tooth hub external splines of tooth hub 1, the inner conical surface 2a of tooth set 2
Released state is in the male cone (strobilus masculinus) 6a of synchronous ring 6, the part spline tooth 6b of synchronous ring 6 offsets with corresponding confined planes 5d, together
The end face outside 6d of step ring 6 contacts with elastic trim ring 8, and elastic trim ring 8 is in swelling state, and it is caused elastic by synchronous ring 6
It is fixed, is positioned between locking gear ring 5 and combination gear ring 4 by spacing back-up ring 7, to ensure locking gear ring 5 to confined planes 5d
Without axial movement between combination gear ring 4, it is connected or is welded as a whole by spline with shifting gear 3 with reference to gear ring 4.
Presynchronization stage, selector fork are stirred tooth set 2 and moved axially laterally, and the inner conical surface 2a of tooth set 2 is gradually leaned on
The male cone (strobilus masculinus) 6a of upper synchronous ring 6, friction is produced between the conical surface under responsive to axial force, synchronous ring 6 is in the presence of friction torque
Produce rotation, the spline tooth 6b of synchronous ring 6 flank 6b1 and the upper spline teeth groove 5b of locking gear ring 5 spline teeth groove confined planes
5b1 is contacted, and rotation stops.
Locking stage, synchronous ring 6 continue to be displaced outwardly in the presence of axial force, until spline tooth 6b locking surface 6b2
The spline tooth socket lock of top locking gear ring 5 stops face 5b2, while stops face 5b2 to spline tooth socket lock and apply a normal pressure, the malleation
Power can be analyzed to an axial thrust load and a circumferential component, and circumferential component, which produces, stirs the ring torque that synchronous ring 6 rotates, by
In the presence of friction torque, ring torque can not make locking gear ring 5 and synchronous ring 6 produce relative rotation, and cause synchronous ring 6 can not
Slide axially outward.
Synchronous phase, shift fork continue to tooth set 2 apply axial thrusts, the conical surface frictional force effect under, tooth set 2 with it is synchronous
The rotating speed of ring 6 gradually tends to be synchronous, and the frictional force between the conical surface is gradually reduced, when ring torque is more than moment of friction, in ring
Synchronous ring 6 and locking gear ring 5 produce relative rotation in the presence of torque, and locking releases, under responsive to axial force, synchronous ring 6
Spline tooth 6b slips into spline teeth groove 5b outer end i.e. narrow section.
Combination stage, after locking releases, tooth set 2 continues to slide out in the presence of shift fork, flower in the tooth set of tooth set 2
The combination external splines groove 4a of key and combination gear ring 4 is engaged, when the tooth of tooth set 2 covers the top spacing back-up rings 7 of internal spline end face outside 2b
Inner face when, can not axially continue to be displaced outwardly, conjunction gear engagement complete, ends of putting into gear, now, elastic trim ring 8 be located at it is convex
On platform arc surface 5c1.
During putting into gear, elastic trim ring 8 with the axial movement of synchronous ring 6 be pushed along boss intermediate incline 5c2 to
Outer Slideslip, the internal diameter of circlip 8 is gradually swollen in sliding process, and circlip 8 is gradually stretched on inner conical surface 2a
In reseting groove 2a1, after elastic trim ring 8 slides entirely over boss intermediate incline 5c2, and when sliding on boss arc surface 5c1, elasticity
The diameter of back-up ring 8 stops expansion, and now, thrust is not present to synchronous ring 6 in circlip 8.
Pluck the gear stage, shift fork band moving teeth set 2 moves inward, and elastic trim ring 8 is by the reseting groove on the inner conical surface 2a of tooth set 2
2a1 when elastic trim ring 8 slips over the boss arc surface 5c1 of locking gear ring 5, and slides into boss transition with inside Slideslip simultaneously
When on inclined-plane 5c2, the diameter of elastic trim ring 8 gradually tapers up in the presence of elastic force, until exiting reseting groove 2a1, tooth set 2 completely
Continue to move inward, the tooth set internal spline of tooth set 2 and the combination external splines groove 4a of combination gear ring 4 engage disengagement, and tooth set 2 reaches
Stop during neutral gear position, now, the part spline tooth 6b of synchronous ring 6 offsets and is compacted with corresponding confined planes 5d.
The present invention by by boss 5c top surface be designed to by boss arc surface 5c1 and boss intermediate incline 5c2 splicing and
Into structure, so, when put into gear end after, elastic trim ring 8 is located on boss arc surface 5c1, and now, elastic trim ring 8 is to synchronization
Thrust is not present in ring 6, so as to ensure that the problem of out of supply is less likely to occur this synchronizer when vehicle traveling is jolted；And work as
When plucking gear, first band dynamic elasticity trim ring 8 is reset on boss intermediate incline 5c2 reseting groove 2a1, then again by elastic trim ring 8 itself
Elastic force realize automatically reset；By designing confined planes 5d, confined planes 5d and locking gear ring 5 on the outer surface of locking gear ring 5
Be not in the caducous problem of position limiting structure, so as to improve compared with the position limiting structure of plug-in so for monolithic construction
The reliability and stability of this synchronizer；Simultaneously as confined planes 5d and locking gear ring 5 have been designed to monolithic construction, institute
With the demolition and maintenance for ease of the later stage, clearance fit state need to will be designed as between locking internal spline 5a and combination external splines groove 4a
And locking gear ring 5 is positioned by spacing back-up ring 7；Moreover, the spacing back-up ring 7 added can also play prevent the sliding of tooth set 2 excessive
Effect；By designing holding tank 5d1, so it is easy to confined planes 5d processing, reduces cost.
Meanwhile the present invention is engaged with spline tooth 6b by peripherally disposed on the outer surface of locking gear ring 5
Spline teeth groove confined planes 5b1 and spline teeth groove are set gradually from inside to outside on spline teeth groove 5b, spline teeth groove 5b inner side
Locking surface 5b2, the peripherally disposed boss 5c on the outer surface of locking gear ring 5, so when putting into gear, locking gear ring 5 with
After tooth 2 rotating speeds of set are consistent, the moment of friction between the inner conical surface 2a and the male cone (strobilus masculinus) 6a of synchronous ring 6 of tooth set 2 disappears, and tooth set 2 pushes away
Synchronous ring 2 is moved to slide on locking gear ring 5, meanwhile, the tooth set internal spline of tooth set 2 slips into the combination external splines groove with reference to gear ring 4
4a, so that the combination of tooth set 2 and tooth hub 1, realizes the purpose for transmitting moment of torsion, is compared to traditional lock ring type synchronized,
The tooth of tooth set 2, which is covered after internal spline needs to cross synchronous ring 6, after synchronization could enter the combination external splines with reference to gear ring 4
Groove 4a, it could be combined with tooth hub 1, so as to realize the purpose for transmitting moment of torsion, but this synchronizer covers 2 rotating speeds in locking gear ring 5 and tooth
Bonding state can be immediately entered after synchronous, the tooth set internal spline without tooth set 2 crosses synchronous ring 6, so as to greatly shorten
The sliding distance of tooth set 2, reduces synchronized stroke, shortens shift time, and then improve shifting comfort；Because this is same
Walk device synchronous ring 6 cone of friction be arranged on synchronous ring 6 it is cylindrical on, so being compared to traditional lock ring type synchronized friction
The conical surface is located in the inner circle of synchronous ring 6, and friction radius is bigger, can under equal conditions provide bigger synchronous capacity, effectively carry
The high gearshift performance of synchronizer；Spline tooth 6b of the locking gear ring 5 of this synchronizer by some spline teeth groove 5b with synchronous ring 6
Engagement, is compared to the external spline teeth of traditional lock ring type synchronized, and structure is simpler, and processing is more convenient.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (7)
1. a kind of high pulling torque synchronizer, including tooth hub (1), the outer slip cap of the tooth hub (1) is equipped with tooth set (2), the tooth hub (1)
Both sides be respectively disposed with a shifting gear (3), be fixed with one respectively on the inner outer wall of two shifting gears (3)
Individual combination gear ring (4), two combination gear rings (4) are respectively installed with a locking gear ring (5), the locking gear ring (5) outside
Locking internal spline (5a) and the combination external splines groove (4a) of the combination gear ring (4) be linked, two locking gear rings (5) are divided outside
A synchronous ring (6) is not set with, and the male cone (strobilus masculinus) (6a) of the synchronous ring (6) matches with the inner conical surface (2a) of the tooth set (2)
Close, be along the circumferential direction provided with spline tooth (6b) on the inner surface of the synchronous ring (6), tooth is respectively equipped with the spline tooth (6b)
Side (6b1) and locking surface (6b2), are along the circumferential direction provided with the outer surface of the locking gear ring (5) and the spline tooth
The spline teeth groove (5b) that (6b) is engaged, the spline teeth groove (5b) are sequentially provided with spline teeth groove from inside to outside on inner side
Confined planes (5b1) and spline tooth socket lock stop face (5b2), and the spline tooth socket lock stops face (5b2) and matched with the locking surface (6b2)
Close, the spline teeth groove confined planes (5b1) are engaged with the flank (6b1), right on the outer surface of the locking gear ring (5)
Answer the position on the outside of the synchronous ring (6) to be provided with and be used for the elastic trim ring (8) that the synchronous ring (6) resets, it is characterised in that institute
State and boss (5c) is along the circumferential direction provided with the outer surface of locking gear ring (5), the top surface of the boss (5c) includes boss circular arc
Face (5c1) and boss intermediate incline (5c2), described boss intermediate incline (5c2) one end and the outer surface of the locking gear ring (5)
Connect, boss intermediate incline (5c2) other end connects with the boss arc surface (5c1), the boss arc surface (5c1)
Arranged with the outer surface coaxial line of the locking gear ring (5), the boss (5c) is arranged with the spline teeth groove (5b) dislocation, institute
The position that the elastic trim ring (8) is corresponded on inner conical surface (2a) is stated provided with the reseting groove that the elastic trim ring (8) can be driven to reset
(2a1)；The axial length of the boss intermediate incline (5c2) is less than the sliding stroke of the synchronous ring (6)；The reseting groove
The width of (2a1) is more than the thickness of elastic trim ring (8) outer radius；Described in being corresponded on the outer surface of the locking gear ring (5)
Position on the inside of synchronous ring (6) is provided with the confined planes (5d) for being used for preventing that the synchronous ring (6) from coming off, the locking internal spline
It is clearance fit state between (5a) and the combination external splines groove (4a), institute is corresponded on the outer surface of the combination gear ring (4)
State the position on the inside of locking gear ring (5) and be provided with the spacing back-up ring (7) for being used for positioning the locking gear ring (5)；During neutral gear, the flower
Key teeth (6b) is located at the inner of the spline teeth groove (5b), and the spline tooth (6b) and corresponding confined planes (5d) phase
Support, the elastic trim ring (8) is pressed in the end face outside (6d) of the synchronous ring (6), and the elastic trim ring (8) is positioned at described
On boss intermediate incline (5c2).
2. high pulling torque synchronizer as claimed in claim 1, it is characterised in that the confined planes (5d) and the spline teeth groove
(5b) dislocation arranges that the position that the confined planes (5d) are corresponded on the outer surface of the locking gear ring (5) is provided with for receiving pair
Answer the holding tank (5d1) of the spline tooth (6b) of position.
3. high pulling torque synchronizer as claimed in claim 1, it is characterised in that the spacing back-up ring (7) is pacified by inserting mode
On the outer surface of the combination gear ring (4)；Corresponded on the outer surface of the combination gear ring (4) in the locking gear ring (5)
The position of side is along the circumferential direction provided with socket (4b), and the spacing back-up ring (7) is inserted into the socket (4b).
4. high pulling torque synchronizer as claimed in claim 1, it is characterised in that the spacing back-up ring (7) is the gear of hatch frame
Circle；The quantity of the spacing back-up ring (7) is at least one.
5. high pulling torque synchronizer as claimed in claim 1, it is characterised in that the inner face of the locking gear ring (5) is provided with
For accommodating the pockets (5e) of tooth set (2).
6. high pulling torque synchronizer as claimed in claim 1, it is characterised in that the shifting gear (3) and the corresponding knot
Gear ring (4) is closed to be fixedly connected by spline mode or welding manner.
7. high pulling torque synchronizer as claimed in claim 1, it is characterised in that correspond to institute on the inner surface of the synchronous ring (6)
The position for stating boss (5c) is provided with the escape groove (6e) for avoiding the boss (5c).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610465362.7A CN106015382B (en) | 2016-06-23 | 2016-06-23 | High pulling torque synchronizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610465362.7A CN106015382B (en) | 2016-06-23 | 2016-06-23 | High pulling torque synchronizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106015382A CN106015382A (en) | 2016-10-12 |
| CN106015382B true CN106015382B (en) | 2018-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610465362.7A Active CN106015382B (en) | 2016-06-23 | 2016-06-23 | High pulling torque synchronizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106015382B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630945B (en) * | 2017-09-05 | 2023-06-16 | 十堰同创传动技术有限公司 | Synchronizer assembly |
| CN108533633B (en) * | 2018-04-26 | 2023-10-20 | 十堰同创传动技术有限公司 | Lock pin type synchronizer |
| CN109737150B (en) * | 2019-01-25 | 2023-12-08 | 武汉精密同创机械有限公司 | Synchronizer of automobile gearbox |
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| DE2411516A1 (en) * | 1974-03-11 | 1975-09-18 | Helmut Droeschel | Toothed coupling for change speed gear - provides synchromesh change without close tolerances by floating baulk ring |
| US4842112A (en) * | 1987-05-09 | 1989-06-27 | Toyota Jidosha Kabushiki Kaisha | Gear synchronizer for power transmission |
| DE4324814A1 (en) * | 1993-07-23 | 1995-01-26 | Zahnradfabrik Friedrichshafen | Gear shift with lock synchronization |
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| DE102014016423A1 (en) * | 2014-11-06 | 2016-05-12 | Daimler Ag | synchronization unit |
| CN105673721A (en) * | 2016-03-14 | 2016-06-15 | 十堰同创传动技术有限公司 | Short-stroke synchronizer |
| CN205715343U (en) * | 2016-06-23 | 2016-11-23 | 十堰同创传动技术有限公司 | High pulling torque lock unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB403319A (en) * | 1933-07-01 | 1933-12-21 | Morris Motors Ltd | Improvements relating to variable speed driving mechanisms for motor vehicles |
| DE2411516A1 (en) * | 1974-03-11 | 1975-09-18 | Helmut Droeschel | Toothed coupling for change speed gear - provides synchromesh change without close tolerances by floating baulk ring |
| US4842112A (en) * | 1987-05-09 | 1989-06-27 | Toyota Jidosha Kabushiki Kaisha | Gear synchronizer for power transmission |
| DE4324814A1 (en) * | 1993-07-23 | 1995-01-26 | Zahnradfabrik Friedrichshafen | Gear shift with lock synchronization |
| CN102401022A (en) * | 2010-09-10 | 2012-04-04 | 通用汽车环球科技运作有限责任公司 | Synchronizing device of transmission |
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| DE102014016423A1 (en) * | 2014-11-06 | 2016-05-12 | Daimler Ag | synchronization unit |
| CN105673721A (en) * | 2016-03-14 | 2016-06-15 | 十堰同创传动技术有限公司 | Short-stroke synchronizer |
| CN205715343U (en) * | 2016-06-23 | 2016-11-23 | 十堰同创传动技术有限公司 | High pulling torque lock unit |
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| Publication number | Publication date |
|---|---|
| CN106015382A (en) | 2016-10-12 |
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