CN106015382A - Large-torque synchronizer - Google Patents
Large-torque synchronizer Download PDFInfo
- Publication number
- CN106015382A CN106015382A CN201610465362.7A CN201610465362A CN106015382A CN 106015382 A CN106015382 A CN 106015382A CN 201610465362 A CN201610465362 A CN 201610465362A CN 106015382 A CN106015382 A CN 106015382A
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- Prior art keywords
- ring
- gear ring
- spline
- face
- tooth
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Classifications
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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
Provided is a large-torque synchronizer. The large-torque synchronizer comprises a gear hub which is sleeved with a gear sleeve. The two sides of the gear hub are each provided with a shifting gear. The outer wall of the inner end of each of the two shifting gears is provided with a combination gear ring. Each of the two combination gear rings is sleeved with a locking gear ring. Each of the two locking gear rings is sleeved with a synchronous ring. The outer conical face of each synchronous ring and the inner conical face of the corresponding gear sleeve are matched. Spline teeth are arranged on the inner surface of each synchronous ring in the peripheral direction. Each spline tooth is provided with a tooth side face and a locking face. The outer surface of each locking gear ring is provided with a spline tooth groove matched with the spline teeth of the corresponding synchronous ring. A spline tooth groove limiting face and a spline tooth groove locking face are sequentially arranged on the side face of the inner end of each spline tooth groove from inside to outside. A convex plate is arranged on the outer surface of each locking gear ring. The top face of each convex plate is provided with a convex plate arc face and a convex plate transitional slope. Each convex plate arc face and the outer surface of the corresponding locking gear ring are arranged coaxially. A reset groove is formed in the position, corresponding to an elastic pressing ring, of each inner conical face and can drive the elastic pressing ring to reset. The large-torque synchronizer is suitable for gearboxes.
Description
Technical field
The present invention relates to lock unit field, particularly relate to a kind of high pulling torque lock unit.
Background technology
Change speed gear box is when gear shift, and the rotating speed of two gear tooths often can be asynchronous, if positively engaging,
Will result in the strong impact of between cog and ear-piercing noise, not only can hinder extension shelves, but also can aggravate
Gear teeth end wear.Therefore, during gear shift, problem demanding prompt solution is ensuring that the one of selected gear is treated
The rotating speed of the meshing gear gear teeth is same, the most just creates lock unit.
Lock unit is the vitals of automotive transmission, it make lock unit input, output Partial synchronization with
After in conjunction with, thus impact when reducing gear shift and noise, alleviate berth-changing strength so that gear shift smoothes out,
Light, alleviate the fatigue of driver, extend the life-span of variator, improve vehicle safety and take advantage of
Acceleration and economy when sitting comfortableness and improve vehicle starting play an important role.With
Step device is as the critical component of variator, and its performance directly affects the performance of shift control mechanism, becomes
Speed device when putting into gear, if net synchronization capability is not enough, impact of putting into gear can be produced, affect smooth gear shifting with
Driver comfort.
Along with people are to vehicle energy saving environmental protection and the raising of lightweight requirements, simultaneously by the size of variator
With matter quantitative limitation, it is desirable to lock unit carries out synchro-meshing, smooth-going gear shift with still being able to fast and reliable,
Having bigger synchronization capacity, these all designs to lock unit are had higher requirement simultaneously.
At present, Chinese patent CN201610142662.1 discloses a kind of short stroke synchronizer, including tooth
Hub, is cased with tooth set outside tooth hub, the both sides of tooth hub are respectively disposed with a shifting gear, two gear teeth
It is respectively equipped with one on the inner outer wall of wheel and combines gear ring, outside two basic change gear ring, be cased with a lock respectively
Only gear ring, is respectively installed with a synchronous ring, the male cone (strobilus masculinus) of synchronous ring and tooth set outside two locking gear rings
Inner conical surface match, the inner surface of synchronous ring is along the circumferential direction provided with spline tooth, on spline tooth point
Not being provided with flank and locking face, the outer surface of locking gear ring is provided with the spline matched with spline tooth
Teeth groove, the side that spline teeth groove is inner is from inside to outside sequentially provided with spline teeth groove confined planes and spline tooth
Slot lock stops face, and the outer surface of locking gear ring is provided with the boss that end face is inclined-plane, boss and spline teeth groove
Dislocation is arranged, on the outer surface of locking gear ring, the position inside corresponding synchronous ring is provided with spacing back-up ring, lock
Only on the outer surface of gear ring, position outside corresponding synchronous ring is provided with elastic trim ring.This lock unit gearshift property
Energy is good and shift time is short, but due to all inclined-planes of the end face of boss, so elastic trim ring is to synchronization
All the time there is thrust in ring, so when vehicle travels and jolts, is susceptible to problem out of supply.
_____
Summary of the invention
The invention aims to overcome the deficiency of above-mentioned background technology, it is provided that a kind of reliable and stable
High pulling torque lock unit.
In order to realize object above, a kind of high pulling torque lock unit that the present invention provides, including tooth hub, institute
Stating the outer slip cap of tooth hub equipped with tooth set, the both sides of described tooth hub are respectively disposed with a shifting gear, and two
It is fixed with one respectively on the inner outer wall of individual described shifting gear and combines gear ring, two described combinations
A locking gear ring, the locking internal spline of described locking gear ring and described combination it is respectively installed with outside gear ring
The combination external splines groove of gear ring is linked, and is respectively installed with a synchronous ring, institute outside two locking gear rings
State the inner conical surface that the male cone (strobilus masculinus) of synchronous ring overlaps with described tooth to match, edge on the inner surface of described synchronous ring
Circumferencial direction is provided with spline tooth, and described spline tooth is respectively equipped with flank and locking face, described locking
The spline teeth groove matched with described spline tooth, described flower along the circumferential direction it is provided with on the outer surface of gear ring
From inside to outside it is sequentially provided with spline teeth groove confined planes on the side that key teeth groove is inner and spline tooth slot lock is stopped
Face, described spline tooth slot lock only face matches with described locking face, described spline teeth groove confined planes and institute
Stating flank to match, on the outer surface of described locking gear ring, the position outside corresponding described synchronous ring sets
There is the elastic trim ring resetted for described synchronous ring, on the outer surface of described locking gear ring along the circumferential direction
Being provided with boss, the end face of described boss includes boss arc surface and boss intermediate incline, described boss mistake
Cross one end, inclined-plane to connect with the outer surface of described locking gear ring, the described boss intermediate incline other end and institute
Stating boss arc surface to connect, the outer surface coaxial line of described boss arc surface and described locking gear ring is arranged,
Described boss is arranged with the dislocation of described spline teeth groove, the position of corresponding described elastic trim ring on described inner conical surface
Install the reseting groove that described elastic trim ring can be driven to reset.
By the end face of boss being designed to the knot being spliced by boss arc surface and boss intermediate incline
Structure, so, when, after end of putting into gear, elastic trim ring is positioned on boss arc surface, now, elastic trim ring
Synchronous ring is not existed thrust, thus ensure that this lock unit is not easy when vehicle travels and jolts
There is problem out of supply；And when plucking gear, it is oblique that reseting groove first band dynamic elasticity trim ring resets to boss transition
On face, realized automatically reseting by the elastic force of elastic trim ring self the most again.
In such scheme, the axial length of described boss intermediate incline is less than the slip of described synchronous ring
Stroke.
In such scheme, the width of described reseting groove is more than the thickness of described elastic trim ring outer radius.
In such scheme, position inside corresponding described synchronous ring on the outer surface of described locking gear ring
It is provided with the confined planes for preventing described synchronous ring from coming off, described locking internal spline and flower outside described combination
It is clearance fit state between keyway, on the outer surface of described combination gear ring in corresponding described locking gear ring
The position of side is provided with the spacing back-up ring for positioning described locking gear ring；During neutral gear, described spline tooth position
At the inner of described spline teeth groove, and described spline tooth offsets with corresponding described confined planes, described
Elastic trim ring is pressed in the end face outside of described synchronous ring, and described elastic trim ring is positioned at described boss mistake
Cross on inclined-plane.By designing confined planes on the outer surface of locking gear ring, confined planes with locking gear ring is
Monolithic construction, so, the position limiting structure of relatively plug-in, do not have that position limiting structure is caducous asks
Topic, thus improve the reliability and stability of this lock unit；Simultaneously as by confined planes and locking
Gear ring has been designed to monolithic construction, so for ease of the demolition and maintenance in later stage, need to be by locking internal spline
And in conjunction with being designed as clearance fit state between external splines groove and by limiting block delineation position locking gear ring；
And, the spacing back-up ring added can also play the effect preventing tooth set sliding too much.
In such scheme, described confined planes is arranged with the dislocation of described spline teeth groove, described locking gear ring
Outer surface on the position of corresponding described confined planes be provided with described spline tooth for accommodating correspondence position
Holding tank.By design holding tank, so it is easy to the processing of confined planes, reduces cost.
In such scheme, described spacing back-up ring is arranged on outside described combination gear ring by plug-in mounting mode
On surface；On the outer surface of described combination gear ring, the position inside corresponding described locking gear ring is circumferentially square
To being provided with socket, described spacing back-up ring is inserted in described socket.
In such scheme, described spacing back-up ring is the back-up ring of hatch frame；The number of described spacing back-up ring
Amount at least one.
In such scheme, the receiving that the inner face of described locking gear ring is provided with for accommodating tooth set is recessed
Groove.
In such scheme, described shifting gear and corresponding described combination gear ring by spline mode or
Welding manner is fixing to be connected.
In such scheme, on the inner surface of described synchronous ring, the position of corresponding described boss is provided with and dodges
The escape groove of described boss.
The technical scheme that the present invention provides has the benefit that
1, by being designed to the end face of boss to be spliced by boss arc surface and boss intermediate incline
Structure, so, when, after end of putting into gear, elastic trim ring is positioned on boss arc surface, now, elastic pressure
There is not thrust in circle, thus ensure that this lock unit is not allowed when vehicle travels and jolts to synchronous ring
Easily there is problem out of supply；And when plucking gear, reseting groove first band dynamic elasticity trim ring resets to boss transition
On inclined-plane, realized automatically reseting by the elastic force of elastic trim ring self the most again；
2, by designing confined planes on the outer surface of locking gear ring, confined planes and locking gear ring are overall
Formula structure, so, the position limiting structure of relatively plug-in, do not have the caducous problem of position limiting structure,
Thus improve the reliability and stability of this lock unit；Simultaneously as by confined planes and locking gear ring
It is designed to monolithic construction, so for ease of the demolition and maintenance in later stage, need to be by locking internal spline and knot
Close and be designed as clearance fit state between external splines groove and by limiting block delineation position locking gear ring；And,
The spacing back-up ring added can also play the effect preventing tooth set sliding too much；
3, by design 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: be difficult to out of supply, and safety can
Lean on, stability height and low cost etc..
Accompanying drawing explanation
Fig. 1 is present invention structural representation when being in neutral position state；
When Fig. 2 is neutral position state, spline tooth and the position relationship structural representation of spline teeth groove；
Fig. 3 is the stravismus structural representation of tooth set；
Fig. 4 is the stravismus structural representation of synchronous ring；
Fig. 5 is the cross-sectional view of synchronous ring；
Fig. 6 is the stravismus structural representation of locking gear ring；
Fig. 7 is present invention partial enlargement structural representation when being in the presynchronization stage；
When Fig. 8 is the presynchronization stage, spline tooth and the position relationship structural representation of spline teeth groove；
Fig. 9 is present invention partial enlargement structural representation when being in the locking stage；
When Figure 10 is the locking stage, spline tooth and the position relationship structural representation of spline teeth groove；
Figure 11 is present invention partial enlargement structural representation when being in synchronous phase；
When Figure 12 is synchronous phase, spline tooth and the position relationship structural representation of spline teeth groove；
Figure 13 is the partial enlargement structural representation that the present invention is in when combining the stage；
When Figure 14 is for combining the stage, spline tooth and the position relationship structural representation of 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, in conjunction with gear ring 4, in conjunction with external splines groove 4a, socket 4b, locking gear ring 5,
Locking internal spline 5a, spline teeth groove 5b, spline teeth groove confined planes 5b1, spline tooth slot lock stops 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 face 6b2,
Inner side end 6c, end face outside 6d, escape groove 6e, spacing back-up ring 7, elastic trim ring 8.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment the present invention is described in further detail, but this embodiment is not
It is interpreted as limitation of the present invention.
Embodiment: a kind of high pulling torque lock unit, including tooth hub 1, the described outer slip cap of tooth hub 1 is equipped with tooth
Set 2, the both sides of described tooth hub 1 are respectively disposed with a shifting gear 3, two described shifting gears 3
Inner outer wall on be fixed with one respectively and combine gear ring 4, two described combination gear rings 4 are outer to be overlapped respectively
Equipped with a locking gear ring 5, the locking internal spline 5a of described locking gear ring 5 and described combination gear ring 4
Combination external splines groove 4a be linked, be respectively installed with a synchronous ring 6 outside two locking gear rings 5,
The male cone (strobilus masculinus) 6a of described synchronous ring 6 matches with the inner conical surface 2a of described tooth set 2, described synchronous ring 6
Inner surface on be along the circumferential direction provided with spline tooth 6b, described spline tooth 6b is respectively equipped with flank
6b1 and locking face 6b2, the outer surface of described locking gear ring 5 is along the circumferential direction provided with and described spline
On the side that the spline teeth groove 5b that tooth 6b matches, described spline teeth groove 5b are inner the most successively
Being provided with spline teeth groove confined planes 5b1 and spline tooth slot lock stops face 5b2, described spline tooth slot lock stops face 5b2
Match with described locking face 6b2, described spline teeth groove confined planes 5b1 and described flank 6b1 phase
Coordinate, on the outer surface of described locking gear ring 5 position outside corresponding described synchronous ring 6 be provided with for
The elastic trim ring 8 that described synchronous ring 6 resets, the outer surface of described locking gear ring 5 along the circumferential direction sets
Boss 5c, the end face of described boss 5c is had to include boss arc surface 5c1 and boss intermediate incline 5c2,
Described boss intermediate incline 5c2 one end connects with the outer surface smoother transition of described locking gear ring 5, institute
State the boss intermediate incline 5c2 other end to seamlessly transit with described boss arc surface 5c1 and connect, described boss
Arc surface 5c1 arranges with the outer surface coaxial line of described locking gear ring 5, described boss 5c and described flower
Key teeth groove 5b misplaces layout, and on described inner conical surface 2a, be provided with can in the position of corresponding described elastic trim ring 8
Drive the reseting groove 2a1 that described elastic trim ring 8 resets.
By the end face of boss 5c being designed to by boss arc surface 5c1 and boss intermediate incline 5c2 spelling
The structure connect, so, when, after end of putting into gear, elastic trim ring 8 is positioned on boss arc surface 5c1,
Now, there is not thrust in elastic trim ring 8, thus ensure that and jolt in vehicle traveling synchronous ring 6
Time, problem out of supply is less likely to occur this lock unit；And when plucking gear, reseting groove 2a1 first band is moved
Property trim ring 8 reset on boss intermediate incline 5c2, real by the elastic force of elastic trim ring 8 self the most again
Now automatically reset.
The axial length of above-mentioned boss intermediate incline 5c2 is less than the sliding stroke of described synchronous ring 6.Institute
The quantity stating boss 5c is at least 3 and the boss 5c uniform cloth in circumferencial directions interval along locking gear ring 5
Put.The width of described reseting groove 2a1 is more than the thickness of described elastic trim ring 8 outer radius.
On the outer surface of above-mentioned locking gear ring 5, the position inside corresponding described synchronous ring 6 is provided with for preventing
Stop confined planes 5d, described locking internal spline 5a and described combination external splines groove that described synchronous ring 6 comes off
It is clearance fit state between 4a, corresponding described locking gear ring 5 on the outer surface of described combination gear ring 4
The position of inner side is provided with the spacing back-up ring 7 for positioning described locking gear ring 5；During neutral gear, described spline
Tooth 6b be positioned at described spline teeth groove 5b inner at, and part described spline tooth 6b is described with corresponding
Confined planes 5d offsets, and described elastic trim ring 8 is pressed in end face outside 6d of described synchronous ring 6,
Described elastic trim ring 8 is positioned on described boss intermediate incline 5c2.By the appearance at locking gear ring 5
Designing confined planes 5d, confined planes 5d on face is monolithic construction with locking gear ring 5, so, and relatively plug-in mounting
The position limiting structure of formula, does not haves the caducous problem of position limiting structure, thus improves this lock unit
Reliability and stability；Simultaneously as confined planes 5d has been designed to monoblock type knot with locking gear ring 5
Structure, so for ease of the demolition and maintenance in later stage, need to by locking internal spline 5a with combine external splines groove 4a
Between be designed as clearance fit state and position locking gear ring 5 by spacing back-up ring 7；And, add
Spacing back-up ring 7 can also play and prevent tooth from overlapping the effect that 2 slidings are too much.
Above-mentioned confined planes 5d and described spline teeth groove 5b dislocation is arranged, the appearance of described locking gear ring 5
On face, the position of corresponding described confined planes 5d is provided with the described spline tooth 6b's for accommodating correspondence position
Holding tank 5d1.By design holding tank 5d1, so it is easy to the processing of confined planes 5d, reduces into
This.
Above-mentioned spacing back-up ring 7 is arranged on the outer surface of described combination gear ring 4 by plug-in mounting mode；Institute
State and combine on the outer surface of gear ring 4 position inside corresponding described locking gear ring 5 and be along the circumferential direction provided with
Socket 4b, described spacing back-up ring 7 is inserted in described socket 4b.Described spacing back-up ring 7 is tied for opening
The back-up ring of structure；The quantity of described 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 accommodating tooth set 2.
Above-mentioned shifting gear 3 is solid by spline mode or welding manner with corresponding described combination gear ring 4
Fixed connection.
On the inner surface of above-mentioned synchronous ring 6, the position of corresponding described boss 5c is provided with and dodges described boss 5c
Escape groove 6e.
The work process of this lock unit is as follows:
When neutral position state, the tooth set internal spline of tooth set 2 engages with the tooth hub external splines of tooth hub 1, tooth
The inner conical surface 2a of set 2 is in released state with the male cone (strobilus masculinus) 6a of synchronous ring 6, the part flower of synchronous ring 6
Key tooth 6b offsets with corresponding confined planes 5d, and end face outside 6d of synchronous ring 6 connects with elastic trim ring 8
Touching, elastic trim ring 8 is in swelling state, and synchronous ring 6 is compressed by its elasticity produced to confined planes 5d
Fixing, locking gear ring 5 and combining is positioned by spacing back-up ring 7, to ensure locking tooth between gear ring 4
Enclose 5 and combine without moving axially between gear ring 4, in conjunction with gear ring 4 with shifting gear 3 by spline even
Connect or be welded as a whole.
In the presynchronization stage, selector fork stirs tooth set and 2 moves axially laterally, tooth set 2 interior
The male cone (strobilus masculinus) 6a of the most top synchronous ring of conical surface 2a 6, produces friction under responsive to axial force between the conical surface,
Synchronous ring 6 produces rotation, the flank 6b1 of the spline tooth 6b of synchronous ring 6 under the effect of friction torque
Contact with the spline teeth groove confined planes 5b1 of locking gear ring 5 upper spline teeth groove 5b, rotate and stop.
In the locking stage, synchronous ring 6 continues to be displaced outwardly under the effect of axial force, until spline tooth 6b
The spline tooth slot lock of locking face 6b2 top locking gear ring 5 stop face 5b2, only to spline tooth slot lock simultaneously
Face 5b2 applies a normal pressure, and this normal pressure can be analyzed to an axial thrust load and a circumferential component,
Circumference component produces stirs the ring moment that synchronous ring 6 rotates, due to the existence of friction torque, ring
Moment cannot make locking gear ring 5 and synchronous ring 6 produce relative rotation, and causes the synchronous ring 6 can not be along axle
To sliding in and out.
Synchronous phase, shift fork continues tooth set 2 applying axial thrust, under the frictional force effect of the conical surface,
Tooth set 2 gradually tends to Tong Bu with synchronous ring 6 rotating speed, and the frictional force between the conical surface is gradually reduced, when dialling
When ring moment is more than moment of friction, under the effect of ring moment, synchronous ring 6 and locking gear ring 5 produce
Relatively rotating, locking releases, and under responsive to axial force, the spline tooth 6b of synchronous ring 6 slips into spline tooth
The narrowest section of the outer end of groove 5b.
In conjunction with the stage, after locking releases, tooth set 2 continues to slide out under the effect of shift fork, tooth
The tooth set internal spline of set 2 engages with the combination external splines groove 4a combining gear ring 4, when the tooth set of tooth set 2
During the inner face of the top spacing back-up ring 7 of internal spline end face outside 2b, axially can not continue to be displaced outwardly,
Having engaged in conjunction with tooth, end of putting into gear, now, elastic trim ring 8 is positioned on boss arc surface 5c1.
During putting into gear, elastic trim ring 8 is pushed along boss mistake along with moving axially of synchronous ring 6
Crossing inclined-plane 5c2 to slide laterally, the internal diameter at sliding process Elastic back-up ring 8 is gradually swollen, bullet
Property back-up ring 8 gradually stretch in the reseting groove 2a1 on inner conical surface 2a, when elastic trim ring 8 slides entirely over convex
After platform intermediate incline 5c2, and when sliding on boss arc surface 5c1, the diameter of circlip 8 stops swollen
Swollen, now, there is not thrust to synchronous ring 6 in circlip 8.
Plucking the gear stage, shift fork drives tooth set 2 to medial movement, and elastic trim ring 8 is by the inner cone of tooth set 2
Reseting groove 2a1 on the 2a of face is with simultaneously to inner slide, when elastic trim ring 8 slips over locking gear ring 5
Boss arc surface 5c1, and when sliding on boss intermediate incline 5c2, the diameter of elastic trim ring 8 is at bullet
Gradually tapering up under the effect of power, until exiting reseting groove 2a1 completely, tooth set 2 continues to medial movement,
The tooth set internal spline of tooth set 2 engages disengagement with the combination external splines groove 4a combining gear ring 4, and tooth set 2 arrives
Stop when reaching neutral gear position, now, the part spline tooth 6b and corresponding confined planes 5d of synchronous ring 6
Offset and compacted.
The present invention is by being designed to the end face of boss 5c by boss arc surface 5c1 and boss intermediate incline
The structure that 5c2 is spliced, so, when, after end of putting into gear, elastic trim ring 8 is positioned at boss arc surface
On 5c1, now, there is not thrust in elastic trim ring 8, thus ensure that at vehicle row synchronous ring 6
Sailing when jolting, problem out of supply is less likely to occur this lock unit；And when plucking gear, reseting groove 2a1 is first
Band dynamic elasticity trim ring 8 resets on boss intermediate incline 5c2, the most again by elastic trim ring 8 self
Elastic force realizes automatically reseting；By designing confined planes 5d, confined planes on the outer surface of locking gear ring 5
5d and locking gear ring 5 are monolithic construction, so, the position limiting structure of relatively plug-in, do not have limit
The caducous problem of bit architecture, thus improve the reliability and stability of this lock unit；Meanwhile, by
In confined planes 5d has been designed to monolithic construction with locking gear ring 5, so for ease of the dismounting in later stage
Safeguard, need to be by locking internal spline 5a and combine and be designed as clearance fit state between external splines groove 4a and lead to
Cross spacing back-up ring 7 and position locking gear ring 5；And, the spacing back-up ring 7 added can also play and prevent tooth set
The effect that 2 slidings are too much；By design holding tank 5d1, so it is easy to the processing of confined planes 5d, fall
Low cost.
Meanwhile, the present invention is by peripherally disposed and spline tooth on the outer surface of locking gear ring 5
Flower is from inside to outside set gradually on the side that the spline teeth groove 5b that 6b matches, spline teeth groove 5b are inner
Key teeth groove confined planes 5b1 and spline tooth slot lock stop face 5b2, on the outer surface of locking gear ring 5 circumferentially
Direction arranges boss 5c, so when putting into gear, locking gear ring 5 overlap with tooth 2 rotating speeds consistent after, tooth set
Moment of friction between the inner conical surface 2a and the male cone (strobilus masculinus) 6a of synchronous ring 6 of 2 disappears, and tooth set 2 promotion is same
Step ring 2 slides on locking gear ring 5, and meanwhile, the tooth set internal spline of tooth set 2 slips into and combines gear ring 4
Combination external splines groove 4a so that tooth set 2 and the combination of tooth hub 1, it is achieved the mesh of transmission moment of torsion
, it is compared to traditional lock ring type lock unit, the tooth set internal spline of tooth set 2 after synchronization
The combination external splines groove 4a combining gear ring 4 could be entered after needing to cross synchronous ring 6, could be with tooth hub
1 combines, thus realizes transmitting the purpose of moment of torsion, but this lock unit overlaps 2 rotating speeds at locking gear ring 5 and tooth
Bonding state can be immediately entered, it is not necessary to the tooth set internal spline of tooth set 2 crosses synchronous ring 6 after synchronization,
Thus significantly shorten the sliding distance of tooth set 2, decrease synchronized stroke, shorten shift time,
And then improve shifting comfort；Owing to the cone of friction of the synchronous ring 6 of this lock unit is arranged on synchronous ring 6
Cylindrical on, so being compared to traditional lock ring type lock unit cone of friction to be positioned at synchronous ring 6
On circle, friction radius is bigger, is under equal conditions provided that bigger synchronization capacity, is effectively increased
The gearshift performance of lock unit；The locking gear ring 5 of this lock unit is by some spline teeth groove 5b and synchronous ring
The spline tooth 6b engagement of 6, is compared to the external spline teeth of traditional locks ring type lock unit, and structure is simpler
Single, process more convenient.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Within bright spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included in
Within protection scope of the present invention.
Claims (10)
1. a high pulling torque lock unit, including tooth hub (1), the outer slip cap of described tooth hub (1) equipped with
Tooth set (2), the both sides of described tooth hub (1) are respectively disposed with a shifting gear (3), described in two
It is fixed with one on the inner outer wall of shifting gear (3) respectively and combines gear ring (4), two described knots
Close and be respectively installed with a locking gear ring (5), the locking of described locking gear ring (5) outside gear ring (4)
Internal spline (5a) is linked with combination external splines groove (4a) of described combination gear ring (4), two locks
Only it is respectively installed with a synchronous ring (6) outside gear ring (5), the male cone (strobilus masculinus) (6a) of described synchronous ring (6)
Match with the inner conical surface (2a) of described tooth set (2), edge on the inner surface of described synchronous ring (6)
Circumferencial direction is provided with spline tooth (6b), and described spline tooth (6b) is respectively equipped with flank (6b1)
With locking face (6b2), the outer surface of described locking gear ring (5) is along the circumferential direction provided with and described flower
The spline teeth groove (5b) that key tooth (6b) matches, on the side that described spline teeth groove (5b) is inner from
The most outwards it is sequentially provided with spline teeth groove confined planes (5b1) and spline tooth slot lock stops face (5b2), described flower
Key teeth groove locking face (5b2) matches with described locking face (6b2), described spline teeth groove confined planes
(5b1) match with described flank (6b1), corresponding on the outer surface of described locking gear ring (5)
The position in described synchronous ring (6) outside is provided with the elastic trim ring (8) resetted for described synchronous ring (6),
It is characterized in that, the outer surface of described locking gear ring (5) is along the circumferential direction provided with boss (5c),
The end face of described boss (5c) includes boss arc surface (5c1) and boss intermediate incline (5c2), institute
State boss intermediate incline (5c2) one end to connect with the outer surface of described locking gear ring (5), described convex
Platform intermediate incline (5c2) other end connects with described boss arc surface (5c1), described boss arc surface
(5c1) the outer surface coaxial line with described locking gear ring (5) is arranged, described boss (5c) is with described
Spline teeth groove (5b) dislocation is arranged, the upper corresponding described elastic trim ring (8) of described inner conical surface (2a)
Position is provided with the reseting groove (2a1) that described elastic trim ring (8) can be driven to reset.
2. high pulling torque lock unit as claimed in claim 1, it is characterised in that described boss transition is oblique
The axial length in face (5c2) is less than the sliding stroke of described synchronous ring (6).
3. high pulling torque lock unit as claimed in claim 1, it is characterised in that described reseting groove (2a1)
Width more than the thickness of described elastic trim ring (8) outer radius.
4. high pulling torque lock unit as claimed in claim 1, it is characterised in that described locking gear ring (5)
Outer surface on corresponding described synchronous ring (6) inner side position be provided with for preventing described synchronous ring (6)
The confined planes (5d) come off, described locking internal spline (5a) and described combination external splines groove (4a) it
Between be clearance fit state, corresponding described locking gear ring (5) on the outer surface of described combination gear ring (4)
The position of inner side is provided with the spacing back-up ring (7) for positioning described locking gear ring (5)；During neutral gear, institute
State spline tooth (6b) to be positioned at the inner of described spline teeth groove (5b), and described spline tooth (6b)
Offseting with corresponding described confined planes (5d), described elastic trim ring (8) is pressed on described synchronous ring (6)
End face outside (6d) on, described elastic trim ring (8) is positioned at described boss intermediate incline (5c2)
On.
5. high pulling torque lock unit as claimed in claim 4, it is characterised in that described confined planes (5d)
Arrange with the dislocation of described spline teeth groove (5b), corresponding described on the outer surface of described locking gear ring (5)
The position of confined planes (5d) is provided with the holding tank of the described spline tooth (6b) for accommodating correspondence position
(5d1)。
6. high pulling torque lock unit as claimed in claim 4, it is characterised in that described spacing back-up ring (7)
It is arranged on the outer surface of described combination gear ring (4) by plug-in mounting mode；Described combination gear ring (4)
Outer surface on corresponding described locking gear ring (5) inner side position be along the circumferential direction provided with socket (4b),
Described spacing back-up ring (7) is inserted in described socket (4b).
7. high pulling torque lock unit as claimed in claim 4, it is characterised in that described spacing back-up ring (7)
Back-up ring for hatch frame；The quantity of described spacing back-up ring (7) is at least one.
8. high pulling torque lock unit as claimed in claim 1, it is characterised in that described locking gear ring (5)
Inner face be provided with the pockets (5e) for accommodating tooth set (2).
9. high pulling torque lock unit as claimed in claim 1, it is characterised in that described shifting gear (3)
Connect by spline mode or welding manner are fixing with corresponding described combination gear ring (4).
10. high pulling torque lock unit as claimed in claim 1, it is characterised in that described synchronous ring (6)
Inner surface on the position of corresponding described boss (5c) be provided with the escape groove (6e) dodging described 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 true CN106015382A (en) | 2016-10-12 |
| CN106015382B CN106015382B (en) | 2018-01-12 |
Family
ID=57086086
Family Applications (1)
| 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) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107630945A (en) * | 2017-09-05 | 2018-01-26 | 十堰同创传动技术有限公司 | A kind of synchronizer assembly |
| CN108533633A (en) * | 2018-04-26 | 2018-09-14 | 十堰同创传动技术有限公司 | A kind of pin-type synchronizer |
| CN109737150A (en) * | 2019-01-25 | 2019-05-10 | 武汉精密同创机械有限公司 | Synchronizer of automotive gear box |
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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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107630945A (en) * | 2017-09-05 | 2018-01-26 | 十堰同创传动技术有限公司 | A kind of synchronizer assembly |
| CN107630945B (en) * | 2017-09-05 | 2023-06-16 | 十堰同创传动技术有限公司 | Synchronizer assembly |
| CN108533633A (en) * | 2018-04-26 | 2018-09-14 | 十堰同创传动技术有限公司 | A kind of pin-type synchronizer |
| CN108533633B (en) * | 2018-04-26 | 2023-10-20 | 十堰同创传动技术有限公司 | Lock pin type synchronizer |
| CN109737150A (en) * | 2019-01-25 | 2019-05-10 | 武汉精密同创机械有限公司 | Synchronizer of automotive gear box |
| 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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| Publication number | Publication date |
|---|---|
| CN106015382B (en) | 2018-01-12 |
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