CN107477154A - Synchronizer and its sliding block - Google Patents
Synchronizer and its sliding block Download PDFInfo
- Publication number
- CN107477154A CN107477154A CN201610405520.XA CN201610405520A CN107477154A CN 107477154 A CN107477154 A CN 107477154A CN 201610405520 A CN201610405520 A CN 201610405520A CN 107477154 A CN107477154 A CN 107477154A
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- CN
- China
- Prior art keywords
- elastic
- sliding block
- clutch collar
- elastic portion
- top plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/12—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with means for synchronisation not incorporated in the clutches
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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
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/78—Special adaptation of synchronisation mechanisms to these gearings
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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
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
- F16H61/0403—Synchronisation before shifting
- F16H2061/0418—Synchronisation before shifting by using different synchronisation devices simultaneously, e.g. for faster synchronisation
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
A kind of synchronizer and its sliding block, the sliding block is made of one piece by sheet material, and the elastic portion being connected including body and with the body, the elastic portion is to protrude from the arcuate configuration of the body, the arcuate configuration is symmetrical on a plane, with realize the elastic portion projected direction elastic deformation in the reverse direction and the reset on the projected direction, the plane perpendicular to the moving direction of the sliding block, parallel to the projected direction.Sliding block is made of one piece by sheet material, is only made up of a part, therefore the structure of sliding block is more simple, and the assembling of synchronizer is more easy.
Description
Technical field
The present invention relates to transmission technology field, more particularly to a kind of synchronizer and its sliding block.
Background technology
Synchronizer is the device that smooth shift is realized in shift process, and it includes synchromesh gear hub and is set in synchronization
Clutch collar on device tooth hub, clutch collar are chimeric with synchromesh gear hub spline.The outer peripheral face of synchromesh gear hub be provided with it is some circumferentially
The groove of uniform intervals arrangement, groove is interior to be provided with the positioning sliding mechanism that can be axially moveable.The effect bag of positioning sliding mechanism
Include and realize presynchronization and neutral reset response (ensureing that synchronizer is in correct neutral gear position).
Existing positioning sliding mechanism is typically formed by more than two assembling parts, not only causes the knot of positioning sliding mechanism
Structure is complicated, and the assembling for also resulting in synchronizer is difficult.
The content of the invention
The problem to be solved in the present invention is：The positioning sliding mechanism of existing synchronizer by more than two assembling parts and
Into not only causing the complicated of positioning sliding mechanism, the assembling for also resulting in synchronizer is difficult.
To solve the above problems, the invention provides a kind of sliding block for synchronizer, the sliding block by sheet material one into
Type forms, and the elastic portion being connected including body and with the body, and the elastic portion is to protrude from the body
Arcuate configuration, the arcuate configuration is symmetrical on a plane, with realize the elastic portion projected direction in the reverse direction
Elastic deformation and the reset on the projected direction, the plane perpendicular to the moving direction of the sliding block, parallel to described
Projected direction.
Alternatively, the elastic portion include two respectively from the two of the body it is lateral among extension elastic arms, two
The individual elastic arm is symmetrical on the plane.
Alternatively, two elastic arms are free end close to mutual one end on the moving direction, described in two
The free end of elastic arm separates each other in a free state.
Alternatively, in two elastic arms, the free end of one of them elastic arm is provided with the first pin, another
The free end of the elastic arm is provided with the second pin, and first and second pin is perpendicular to the moving direction and projected direction
Direction on space crossings set.
Alternatively, in two elastic arms, the free end of one of them elastic arm has jack, described in another
The free end of elastic arm has pin, and in the case where the elastic portion is squeezed power, the pin is non-contactly described
Moved in jack, the direction of the extruding force is opposite with the projected direction.
Alternatively, two elastic arms are domed on the whole；Or
Each elastic arm is domed, and two elastic arms are on the whole in double arches, and two elastic arms
On the moving direction dented space is surrounded close to mutual one end.
Alternatively, the sliding block is the column structure provided with hollow via-hole, the body and elastic portion surround it is described in
Empty through hole, the body include bottom plate, the first side plate, the second side plate, the first top plate and the second top plate；
First top plate and the second top plate are in the same plane, and are set with the bottom plate parallel interval, described
First top plate and the second top plate are arranged at intervals along the moving direction；
First side plate between first top plate and bottom plate, and both ends respectively with first top plate and bottom plate
It is fixedly connected；
Second side plate between second top plate and bottom plate, and both ends respectively with second top plate and bottom plate
It is fixedly connected；
Two elastic arms are between first top plate and the second top plate, and two elastic arms are away from each other
One end be fixedly connected respectively with first top plate, the second top plate.
Alternatively, the elastic portion includes multiple elastic arms extended from the side of the body to center, Suo Yousuo
Elastic arm compartment of terrain is stated circumferentially to arrange；Or the elastic portion extends from the body including multiple in emitting shape to surrounding
Elastic arm.
Alternatively, the sheet material is spring steel plate.
In addition, present invention also offers a kind of synchronizer, including：Synchromesh gear hub, outer peripheral face are provided with groove；It is set in institute
The clutch collar on synchromesh gear hub is stated, is rotated with the rotation of the synchromesh gear hub, and can relatively described synchromesh gear hub edge
Axial movement, the inner peripheral surface of the clutch collar are provided with drive portion；Synchronous ring positioned at synchromesh gear hub axial direction side；It is described
Synchronizer also includes：Any of the above-described described sliding block that can axially movably in the groove, the elastic portion are located at
The radial outside of the body；The clutch collar is axially moveable when reaching presynchronization position from neutral gear position, described
Drive portion is chimeric with elastic portion, so that the clutch collar can drive the sliding block to be axially moveable, the clutch collar is described pre-
During sync bit, the body offsets vertically with synchronous ring；The clutch collar continues after reaching the presynchronization position
It is axially moveable until reaching when gear is put, the drive portion is chimeric with elastic portion disengaging, so that the clutch collar can be relative
The sliding block is axially moveable；The clutch collar can be axially moveable by relatively described sliding block and be squeezed with direction radially inward
The mode of the elastic portion is pressed, to realize that the drive portion switches with elastic portion between state chimeric, that disengaging is chimeric.
Alternatively, the inner peripheral surface of the clutch collar is provided with limiting section, and the limiting section and the drive portion are axially spaced
Set；
For the clutch collar positioned at described when gear is put, the limiting section points to what is put in gear along from the neutral gear position
Axial direction withstands the elastic portion, to prevent the sliding block from removing outside the clutch collar.
Alternatively, the projection that the limiting section protrudes for direction radially inward.
Alternatively, the quantity of the limiting section is two, and two limiting sections are presented axially in the drive portion
Both sides.
Alternatively, the projection that the drive portion protrudes for direction radially inward, the drive portion are chimeric with elastic portion
When, it is described raised in the dented space of the elastic portion, when the drive portion is chimeric with elastic portion disengaging, the raised position
In outside the dented space；Or
The drive portion is pit, and when the drive portion is chimeric with elastic portion, the elastic portion is located in the pit, institute
State drive portion it is chimeric with elastic portion disengaging when, the elastic portion is located at outside the pit.
Compared with prior art, technical scheme has advantages below：
During gearshift, clutch collar in neutral gear position, put in gear between move.Clutch collar puts shifting from neutral gear position in gear
When dynamic, first, the drive portion on clutch collar is chimeric with the elastic portion on sliding block so that and clutch collar band movable slider is axially moveable,
So as to which the body when clutch collar reaches presynchronization position on sliding block offsets to realize the presynchronization work(of synchronizer with synchronous ring
Energy.Then, continue to put the direction extruding elastic portion of mobile clutch collar radially inward, the elastic portion being squeezed in gear
In the elastic deformation of generation in the reverse direction of projected direction to realize that drive portion is chimeric with elastic portion disengaging.Depart from after being fitted together to, bullet
Property (be projected direction) resets radially outward direction in portion, clutch collar opposing slider is axially moveable, until engagement is set to
Put up in gear.It is corresponding, clutch collar leisure gear put to neutral gear position move when, clutch collar opposing slider moves vertically
It is dynamic, until the direction extruding elastic portion of clutch collar radially inward, to realize that drive portion is chimeric with elastic portion.Because elastic portion is
Symmetrical structure, therefore clutch collar can be moved along two opposite axial direction opposing sliders to realize the drive portion and bullet on clutch collar
Property portion it is chimeric, depart from and switch between chimeric state, clutch collar can move from neutral gear position to the two of both sides in file location,
Synchronizer is enabled to realize the smooth shift of two gears.Existing positioning skate machine instead of by the integrally formed sliding block of sheet material
Structure, it is only made up of a part, therefore the structure of sliding block is more simple, and the assembling of synchronizer is more easy.
Brief description of the drawings
Fig. 1 is the part sectioned view of synchronizer when clutch collar is located at neutral gear position in the first embodiment of the present invention；
Fig. 2 is the stereogram of synchromesh gear hub in synchronizer shown in Fig. 1；
Fig. 3 is the stereogram of clutch collar in synchronizer shown in Fig. 1；
Fig. 4 is the part sectioned view of synchronizer when clutch collar is located at presynchronization position in the first embodiment of the present invention；
Fig. 5 is the part section that clutch collar is located in one of the synchronizer when gear is put in the first embodiment of the present invention
Figure；
Fig. 6 is the stereogram of sliding block in synchronizer shown in Fig. 1；
Fig. 7 is the partial enlarged drawing of clutch collar in the second embodiment of the present invention；
Fig. 8 is the part section that clutch collar is located in one of the synchronizer when gear is put in the second embodiment of the present invention
Figure；
Fig. 9 is the profile of sliding block in the third embodiment of the present invention；
Figure 10 is the profile of sliding block in the fourth embodiment of the present invention；
Figure 11 is the part sectioned view of clutch collar in the fifth embodiment of the present invention；
Figure 12 be in the sixth embodiment of the present invention drive portion of clutch collar and the elastic portion of sliding block under chimerism
Profile；
Figure 13 is that the drive portion of clutch collar and the elastic portion of sliding block are departing from chimerism in the sixth embodiment of the present invention
Under profile；
Figure 14 is the profile of sliding block in the seventh embodiment of the present invention；
The cutting plane of all profiles in Fig. 1 to Figure 14 is the plane where the axis of synchronizer.
Embodiment
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.
Before being described in detail, it should be noted that, in the present invention, unless stated otherwise, otherwise, axially refer to same
The axial direction of device is walked, radially refers to the radial direction of synchronizer, circumferentially refers to the circumferential direction of synchronizer.
First embodiment
As shown in figure 1, present embodiments providing a kind of synchronizer, it can realize the smooth shift of two gears, described
Gear can be random shift, and described two gears are by taking 1,2 gears as an example in the present embodiment.The synchronizer includes synchromesh gear hub
1st, clutch collar 2, synchronous ring 3a, synchronous ring 3b, middle ring 4a, middle ring 4b, inner ring 5a, inner ring 5b, the first shift gear 6a,
Two shift gear 6b and sliding block 7.Adaptably, the first shift gear 6a, the second shift gear 6b can be random shift tooth
Wheel, in the present embodiment, so that the first shift gear 6a is 1 gear gear, the second shift gear 6b is 2 gear gears as an example.
Synchronous ring 3a, middle ring 4a, inner ring 5a, the first shift gear 6a are located at axial side (Fig. 1 of synchromesh gear hub 1
Middle left side), inner ring 5a is located at synchronous ring 3a radially inner side, middle ring 4a be radially positioned synchronous ring 3a and inner ring 5a it
Between.Synchronous ring 3a, middle ring 4a, inner ring 5a are respectively provided with the conical surface of cone angle equal (referring to that the cone angle theoretical value of three is equal) (not
Mark).First shift gear 6a is presented axially in synchronous ring 3a, middle ring 4a, inner ring 5a backwards to the side of synchromesh gear hub 1
(left side in Fig. 1).
Synchronous ring 3b, middle ring 4b, inner ring 5b, the second shift gear 6b are located at the axial opposite side (figure of synchromesh gear hub 1
Right side in 1), inner ring 5b be located at synchronous ring 3b radially inner side, middle ring 4b be radially positioned synchronous ring 3b and inner ring 5b it
Between.Synchronous ring 3b, middle ring 4b, inner ring 5b are respectively provided with the conical surface of cone angle equal (referring to that the cone angle theoretical value of three is equal) (not
Mark).Second shift gear 6b is presented axially in synchronous ring 3b, middle ring 4b, inner ring 5b backwards to the side of synchromesh gear hub 1
(right side in Fig. 1).
Clutch collar 2 is set on synchromesh gear hub 1, and can be rotated with the rotation of synchromesh gear hub 1.During gearshift, engagement
Set 2 can in the presence of the operating mechanism (not shown) vertically in neutral gear position, put in gear between relative synchronization device tooth hub 1 it is past
It is multiple mobile.When clutch collar 2 is located at the neutral gear position, gearbox is located at neutral.Clutch collar 2, when gear is put, becomes positioned at described
Fast device hangs up corresponding gear.In the present embodiment, the quantity put in gear has two, and respectively 1 gear is put in gear, 2
Gear is put in gear, is put described in two in gear and is presented axially in the both sides of the neutral gear position.
With reference to shown in Fig. 2 to Fig. 3, in the present embodiment, synchromesh gear hub 1 is provided with external splines (not identifying), and clutch collar 2 is set
There are internal spline (not identifying), clutch collar 2 and the key connection of synchromesh gear hub 1, to realize rotation of the clutch collar 2 with synchromesh gear hub 1
And rotate, and can relative synchronization device tooth hub 1 vertically in neutral gear position, put in gear between move back and forth.
With reference to shown in Fig. 1 to Fig. 2, the outer peripheral face of synchromesh gear hub 1 is provided with the groove axially through synchromesh gear hub 1
10, sliding block 7 is located in groove 10 and can be axially moveable in groove 10.In the present embodiment, groove 10, the quantity of sliding block 7
Be several (in figures exemplified by three), institute fluted 10 circumferentially uniform intervals arrange, all sliding blocks 7 circumferentially uniformly between
Every arrangement.
In the present embodiment, the shape of groove 10 and the shape of sliding block 7 are adapted, and the bottom wall (not identifying) of groove 10 is flat
Face so that the processing technology of groove 10 is more simple, and makes the intensity of synchromesh gear hub bigger, and the bottom wall is in synchromesh gear hub
1 radially offsets with sliding block 7.Certainly, in other embodiments, groove 10 could be arranged to arbitrary shape.
With reference to shown in Fig. 1 and Fig. 3, the inner peripheral surface of clutch collar 2 is provided with drive portion 20.The quantity of drive portion 20 and sliding block 7
Quantity is equal, is several in the present embodiment, and circumferentially uniform intervals arrange all drive portions 20.
Wherein, with reference to shown in figure 1 and Fig. 6, sliding block 7 is made of one piece by sheet material, and including body 70 and and body
The elastic portion 71 that portion 70 connects, elastic portion 71 are to protrude from the arcuate configuration of body 70, the arcuate configuration on it is one flat
Face is symmetrical, and the plane is perpendicular to the moving direction X (i.e. the axial direction of synchronizer) of sliding block 7, while the plane is also parallel with bullet
The projected direction in property portion 71.When elastic portion 71 is by radially inner extruding, elastic portion 71 can occur along projected direction Y1 (i.e.
Radially outward direction) opposite direction elastic deformation so that its projecting height diminishes.When elastic portion 71 is no longer influenced by extruding,
Elastic portion 71 recovers deformation to be resetted along projected direction Y1.Elastic portion 71 in sliding block 7 is located at the radial outside of body 70, with
To the projection of clutch collar 2.It should be noted that in the inventive solutions, it is so-called symmetrically to shall be limited only to the extent absolute symmetry
Situation, it should also include the situation of substantial symmetry.In the inventive solutions, so-called arcuate configuration refer to its at least one
Projecting height of the part on moving direction X first gradually increases to crest and is gradually reduced again, gradual increase here or gradually subtracts
The small trend for referring to that projecting height has the trend of increase or projecting height has reduction.
The course of work of the synchronizer of the present embodiment is introduced with reference to Fig. 1, Fig. 4 and Fig. 5.Fig. 1, Fig. 4, Fig. 5 according to
It is secondary to illustrate that gearbox is switched to the shape that clutch collar during 1 gear is presented axially in synchronizer under diverse location by neutral
State, wherein, clutch collar 2 is located at neutral gear position in Fig. 1, and clutch collar 2 is located at presynchronization position in Fig. 4, and clutch collar 2 is located at 1 in Fig. 5
Gear is put in gear.
Successively with reference to shown in figure 1, Fig. 4, Fig. 5, when gearbox switches to 1 gear by neutral, first, clutch collar 2 is from the sky
Gear is put along the axial direction X1 for drawing close the first shift gear 6a and is moved to the presynchronization position, then by the presynchronization position
Putting continuation, in axial direction X1 is moved to 1 gear and put in gear.
As shown in figure 1, clutch collar 2 is in the neutral gear position, the drive portion 20 on clutch collar 2 and the elasticity on sliding block 7
Portion 71 is chimeric, and the body 70 of sliding block 7 exists vertically with synchronous ring 3a, synchronous ring 3b to be spaced.With reference to shown in Fig. 1 and Fig. 4,
Clutch collar 2 under the packing interaction of drive portion 20 and elastic portion 71, engages from during the neutral gear position in axial direction X1 movements
Set 2 can the in axial direction X1 movements of band movable slider 7.
As shown in figure 4, when in axial direction X1 is moved to body 70 and offseted vertically with synchronous ring 3a sliding block 7,
Under the axial force that sliding block 7 applies, synchronous ring 3a is axially moveable until the synchronous ring 3a conical surface and the middle ring 4a conical surface
Compress, under the rubbing action of the conical surface, synchronous ring 3a can rotate an angle relative to clutch collar 2, to realize synchronizer
Presynchronization.In the present invention, when defining the synchronous ring 3a conical surface and being compacted and can not be axially moveable, clutch collar 2 is in the axial direction
Location is presynchronization position.
, can be in the operating mechanism after clutch collar 2 reaches the presynchronization position successively with reference to shown in figure 4, Fig. 5
The lower in axial direction X1 that continues of effect is moved.Because the body 70 of sliding block 7 offsets vertically with synchronous ring 3a, therefore clutch collar 2
Meeting opposing slider 7 continues in axial direction X1 movements.In relative movement, the direction that clutch collar 2 can radially inward extrudes bullet
Property portion 71 is allowed to that elastic deformation occurs, so that drive portion 20 is chimeric with the disengaging of elastic portion 71.Drive portion 20 departs from elastic portion 71
After chimeric, clutch collar 2 continues opposing slider 7 in the presence of the operating mechanism, and in axial direction X1 is moved, until reaching
1 gear is put in gear.As shown in figure 5, clutch collar 2 is when described 1 gear is put in gear, drive portion 20 and bullet on clutch collar 2
Property portion 71 vertically exist interval.
It should be noted that in the inventive solutions, the direction extruding elastic portion of so-called clutch collar 2 radially inward
71, can be that clutch collar 2 is applied to the force direction of elastic portion 71 perpendicular to the axis of synchronizer or clutch collar
2 are applied to the force direction of elastic portion 71 and the axis of synchronizer is obliquely installed.
Successively with reference to shown in figure 5, Fig. 4, Fig. 1, when gearbox switches to neutral by 1 gear, clutch collar 2 can be in the manipulation machine
Put in the presence of structure along the axial direction X2 away from the first shift gear 6a from described 1 gear in gear and be moved to the neutral position
Put.In moving process, first in axial direction X2 is gradually drawn close the drive portion 20 on clutch collar 2 to elastic portion 71, then, clutch collar
The direction extruding elastic portion 71 of drive portion 20 radially inward on 2 is allowed to that elastic deformation occurs, so that drive portion 20 and elasticity
Portion 71 is chimeric.
Because elastic portion 71 is symmetrical structure, thus gearbox by neutral switch to 2 gears or by 2 gear switch to neutral when, together
It is similar with said process to walk the course of work of device, will not be repeated here.
Continuing with shown in Fig. 1, Fig. 4 and Fig. 5, it can be seen from the course of work of above-mentioned the present embodiment synchronizer, switching
During gear, clutch collar 2 the neutral gear position, it is described put in gear between reciprocating movement be divided into two parts：Work as engagement
Set 2 is axially moveable from neutral gear position until when reaching presynchronization position, and drive portion 20 is chimeric with elastic portion 71, so that clutch collar
2 can be axially moveable with movable slider 2；Clutch collar 2 continues to be axially moveable until reaching after reaching the presynchronization position
When gear is put, drive portion 20 is chimeric with the disengaging of elastic portion 71, so that the energy opposing slider 2 of clutch collar 2 is axially moveable.
Clutch collar 2 realizes drive portion 20 with elastic portion 71 in the state chimeric, disengaging is chimeric by following manner
Between switch：Direction extruding elastic portion 71 while opposing slider 7 is axially moveable radially inward.Specifically, when connecing
The opposing slider 7 of trap 2 along the axial direction X1 drawn close to synchronous ring 3a move when, the direction that clutch collar 2 can be radially inward is squeezed
Compression elasticity portion 71, to realize that drive portion 20 is chimeric with the disengaging of elastic portion 71.When the opposing slider 7 of clutch collar 2 is along away from synchronous ring 3a
Axial direction X2 movements when, direction that clutch collar 2 can be radially inward extruding elastic portion 71, to realize drive portion 20 and elasticity
Portion 71 is chimeric.
In the inventive solutions, sliding block 7 can substitute existing positioning sliding mechanism, because sliding block 7 is by plate body one
It is body formed, only it is made up of a part, therefore the structure of sliding block 7 is more simple, the assembling of synchronizer is more easy.
In the alternative of the present embodiment, synchronizer does not have middle ring 4a, middle ring 4b, is realizing the presynchronization function
When, the synchronous ring 3a conical surface compresses with the inner ring 5a conical surface, and the synchronous ring 3b conical surface compresses with the inner ring 5b conical surface.
With reference to shown in Fig. 1 and Fig. 6, in the present embodiment, elastic portion 71 includes (moving from the both sides of body 70 respectively
Both sides on dynamic direction) to the elastic arm 710,711 of centre extension, elastic arm 710,711 is on a plane (i.e. perpendicular to sliding block
7 moving direction X plane) symmetrically, elastic arm 710,711 is domed, and elastic arm 710,711 is in double arches on the whole, and
Elastic arm 710,711 surrounds dented space 72 on the moving direction X of sliding block 7 close to mutual one end.In the technology of the present invention
In scheme, arch refers to arc, can be circular arc, ellipse arc, parabola shaped etc..Domed elastic arm 710,711
Projecting height first gradually increases to crest on moving direction X and is gradually reduced again, and the projecting height of whole elastic portion 71 is moving
First crest is gradually increased on dynamic direction X to be gradually reduced again, then first gradually increase to crest is gradually reduced again.
As shown in Figure 1 and Figure 4, clutch collar 2 is axially moveable from the neutral gear position until reaching the presynchronization position
When, the construction on clutch collar 2 is located in dented space 72 for raised drive portion 20, when clutch collar 2 is axially moveable, clutch collar
The raised energy band movable slider 7 on 2 be axially moveable, to realize the Qian He of drive portion 20 and elastic portion 71.
As shown in figure 5, clutch collar 2 continues to be axially moveable until arrival is put in gear after reaching the presynchronization position
When, described raised outside dented space 72 on clutch collar 2, clutch collar 2 can be no longer axially moveable with movable slider 7, with reality
Existing drive portion 20 is chimeric with the disengaging of elastic portion 71.
With reference to shown in Fig. 1, Fig. 4 to Fig. 5, drive portion 20 switches to disengaging chimerism with elastic portion 71 by chimerism
When, the opposing slider 7 of clutch collar 2 is axially moveable, and drive portion 20 applies an active force to the cavity wall S1 of dented space 72, so that bullet
Property the direction radially inward of arm 710,711 elastic deformation occurs, so as to allow drive portion 20 to be moved to outside dented space 72, realize
Drive portion 20 is chimeric with the disengaging of elastic portion 71.
When drive portion 20 and elastic portion 71 switch to chimerism by disengaging chimerism, the opposing slider 7 of clutch collar 2 is along axle
To movement, drive portion 20 applies an active force to the outer wall S2 of elastic arm 710,711 so that elastic arm 710,711 radially to
Elastic deformation occurs for interior direction, so as to allow drive portion 20 to move into dented space 72, realizes drive portion 20 and elastic portion 71
It is chimeric.
With reference to shown in Fig. 1 and Fig. 6, dented space 72 is substantially in V-shape, the shape phase of drive portion 20 and dented space 72
Adapt to, the longitudinal section of drive portion 20 is triangle, and so-called longitudinal section refers to cut open using the plane where the axis of synchronizer
Cut the section of the gained of drive portion 20.Further, in the present embodiment, the end of drive portion 20 is provided with fillet.Drive portion 20 with
When elastic portion 71 switches between disengaging chimerism and chimerism, because the end of drive portion 20 is provided with fillet, therefore drive
Portion 20 more reliably can be offseted with elastic portion 71, and elastic portion 71 is extruded with the direction being easier radially inward.
As shown in fig. 6, in the present embodiment, elastic arm 710,711 is on the axial direction of synchronizer close to mutual one
Hold and separated each other in a free state for free end, the free end of elastic arm 710,711, so-called free state refers in elastic portion
71 do not receive state during extruding.The free end of elastic arm 711 is provided with two the first pins 73, and the free end of elastic arm 710 is set
There are two the second pins 74.Space crossings are set in a direction z for all first pins 73 and all second pins 74, and direction Z hangs down
Directly in projected direction Y1 and moving direction X.Two the first pins 73 are spaced along direction Z, and two the second pins 74 are along direction Z
It is spaced, all first pins 73 and all second pins 74 are staggered in a direction z, and in a direction z adjacent
One pin 73 and the second pin 74 are arranged in a crossed manner.
Continuing with shown in Fig. 1 and Fig. 6, understood according to above analysis, when gearbox switches between neutral and 2 gears, band
Dynamic portion 20 and elastic portion 71 can switch between chimerism and disengaging chimerism, and drive portion 20 can extrude elastic arm 711
Elastic deformation, when elastic arm 711 is extruded into certain position, elastic arm 711 and bullet occur for the direction being allowed to radially inward
Property arm 710 the second pin 74 radially offset, so, elastic arm 710 can play a supporting role to elastic arm 711, increase
The strong rigidity of elastic portion 71, avoids drive portion 20 and elastic portion 71 in chimerism and departs from the wink switched between chimerism
Between, the active force for being used for driving it to move axially being applied on clutch collar 2 drastically changes, driver when improving gear shift operation
Operating handle.
Understood according to above analysis, when gearbox switches between neutral and 1 gear, drive portion 20 can be embedding with elastic portion 71
Switch between conjunction state and disengaging chimerism, and drive portion 20 can extrude the direction that elastic arm 710 is allowed to radially inward and send out
Raw elastic deformation, when elastic arm 710 is extruded into certain position, the first pin 73 of elastic arm 710 and elastic arm 711 is along footpath
To offseting, so, elastic arm 711 can play a supporting role to elastic arm 710, enhance the rigidity of elastic portion 71, avoid
Drive portion 20 and elastic portion 71 in chimerism and depart from the moment switched between chimerism, the use being applied on clutch collar 2
Active force to drive it to move axially drastically changes, the operating handle of driver when improving gear shift operation.
In the alternative of the present embodiment, the quantity of the first pin 73 and the second pin 74 is it can also be provided that one or three
Quantity more than individual.
In the alternative of the present embodiment, the free end of elastic arm 710 has jack, and the free end of elastic arm 711 has
Pin, the pin obliquely (i.e. along non-perpendicular to also non-parallel to synchronizer axis direction) insertion jack in.When
Drive portion 20 and elastic portion 71 switch between chimerism and disengaging chimerism, and drive portion 20 extrudes elastic arm 710,711
When elastic deformation occurs for the direction being allowed to radially inward, the pin non-contactly moves in the jack.Work as elastic arm
710th, 711 when being extruded into certain position, and the hole wall of the pin and the jack offsets, so, based on this implementation
Example technical scheme identical principle, also can mutually play a supporting role between elastic arm 711,710, enhance the firm of elastic portion 71
Degree.
In the present embodiment, sliding block 7 is the column structure provided with hollow via-hole 705, and body 70 surrounds with elastic portion 71
Hollow via-hole 705.Body 70 includes bottom plate 700, the first side plate 701, the second side plate 702, the first top plate 703 and the second top plate
704.First top plate 703 and the second top plate 704 are in the same plane, and are set with the parallel interval of bottom plate 700.First top plate
703 and second moving direction X of the top plate 704 along sliding block 7 be arranged at intervals, the first side plate 702 is located at the first top plate 703 and bottom plate
Between 700, and both ends are fixedly connected with the first top plate 703 and bottom plate 700 respectively.Second side plate 702 is located at the He of the second top plate 704
Between bottom plate 700, and both ends are fixedly connected with the second top plate 704 and bottom plate 700 respectively.Elastic arm 710,711 is positioned at the first top
Between the top plate 704 of plate 703 and second, and 710,711 one end away from each other of elastic arm is pushed up with the first top plate 703, second respectively
Plate 704 is fixedly connected.
When gearbox switches to 1 gear, the first side plate 701 promotes synchronous ring 3a to be axially moveable, to realize synchronizer
Presynchronization.When gearbox switches to 2 gear, the second side plate 702 promotes synchronous ring 3b to be axially moveable, to realize the pre- of synchronizer
It is synchronous.
It should be noted that in the inventive solutions, the not restricted requirement of shape to body 70, other
In embodiment, body 70 is it can also be provided that other arbitrary shapes.
In the present embodiment, the free end of elastic arm 710,711 is stretched into hollow via-hole 705, but not with the face of bottom plate 700
Contacted to the inner surface (not identifying) of elastic portion 71.In the alternative of the present embodiment, the free end of elastic arm 710,711 can be with
Contacted with bottom plate 700 towards the inner surface of elastic portion 71, and 710,711 direction radially inward of elastic arm is extruded
When, the free end of elastic arm 710,711 can move on the inner surface of bottom plate 700 along moving direction X.
In the present embodiment, the material of sliding block 7 is spring steel, and its advantage includes：Service life is grown, all the time during use
With good elastic deformation ability, it is ensured that the reliability of sliding block 7；Applicable temperature scope is wide, will not be because of use environment temperature
It is too high or too low and cause to damage during the engaged extruding of set 2 of sliding block 7.Certainly, in the inventive solutions, the material of sliding block 7
Given embodiment is should not be limited to, other materials with favorable elasticity deformability, such as plastics can also be used.
Further, sliding block 7 is stamped to form by spring steel plate, can be relatively easy to and acquisition sliding block 7 that cost is low.When
So, in other embodiments, sliding block 7 can also be formed by spring steel plate through the bending of other techniques.
Second embodiment
Difference between second embodiment and first embodiment and its alternative is：In a second embodiment, such as Fig. 7 institutes
Show, the inner peripheral surface of clutch collar 2 is provided with limiting section 21,22, limiting section 21,22 with 20 axially spaced setting of drive portion, and
It is located axially at the both sides of drive portion 20.
As shown in figure 8, clutch collar 2 is kept off when gear is put positioned at 1, limiting section 21 exists along from the gear of neutral gear position sensing 1
The axial direction X1 that gear is put withstands elastic portion 71, is removed to prevent limited slip block 7 outside clutch collar 2.Similarly, clutch collar 2 is located at 2
For gear when gear is put, limiting section 22 withstands elastic portion along the axial direction X2 put from the gear of neutral gear position sensing 2 in gear
71, removed to prevent limited slip block 7 outside clutch collar 2.
In the alternative of the present embodiment, synchronizer is only capable of realizing the smooth shift of a gear, spacing in clutch collar 2
Portion 21,22 only sets one of those.
In the present embodiment, the longitudinal section of limiting section 21,22 is triangle.So-called longitudinal section refers to utilize a synchronizer
Axis where the gained of a plane cutting limiting section 21,22 section.
It should be noted that in the inventive solutions, the not restricted requirement of shape to limiting section 21,22, and
Given embodiment should not be limited only to.
3rd embodiment
Difference between 3rd embodiment and first embodiment and its alternative is：In the third embodiment, such as Fig. 9 institutes
Show, moving direction X of the elastic arm 710,711 along sliding block 7 is arranged at intervals, and elastic arm 710,711 close to mutual free end simultaneously
Uncrossed setting, the free end of elastic arm 710,711 are simultaneously not provided with pin, by elastic arm 710,711 on moving direction X it is close
The dented space 72 that mutual one end is surrounded is in loader so that elastic arm 710,711 and body 70 surround one
Individual tool hollow columnar structures jaggy.It is that elastic arm 710,711 is arch, elastic arm with first embodiment identical
710th, 711 on the whole in double arches.
Fourth embodiment
Difference between fourth embodiment and first embodiment and its alternative is：In the fourth embodiment, such as Figure 10
Shown, elastic arm 710,711 is fixed together on the moving direction X of sliding block 7 close to mutual one end so that elastic arm
710th, 711 and body 70 surround one closing column structure.It is elastic arm 710,711 with first embodiment identical
It is arch, elastic arm 710,711 is on the whole in double arches.
5th embodiment
Difference between 5th embodiment and any of the above-described embodiment is：In the 5th embodiment, as shown in figure 11, connect
The longitudinal section of drive portion 20 is arch in trap 2, and so-called longitudinal section refers to the plane where the axis using a synchronizer
The section of the gained of cutting drive portion 20.
Sixth embodiment
Difference between sixth embodiment and any of the above-described embodiment is：In the sixth embodiment, as shown in figure 12, connect
Drive portion 20 in trap 2 is pit, and the elastic portion 71 on sliding block 7 protrudes from body 70 radially outward direction.
Clutch collar 2 is axially moveable from the neutral gear position until when reaching the presynchronization position, and elastic portion 71 is located at
In drive portion 20, clutch collar 2 can be axially moveable with movable slider 7, to realize the Qian He of drive portion 20 and elastic portion 71.
As shown in figure 13, clutch collar 2 continues to be axially moveable until reaching in gear after reaching the presynchronization position
When putting, elastic portion 71 is located at outside drive portion 20, and clutch collar 2 can be no longer axially moveable with movable slider 7, with realize drive portion 20 with
The disengaging of elastic portion 71 is fitted together to.Elastic portion 71 be located at drive portion 20 it is outer when, 2 direction radially inward of the engaged set of elastic portion 71
Extruding, when the opposing slider 7 of clutch collar 2 is axially moveable to elastic portion 71 and drive portion 20 position being radially aligned to, bullet
Property portion 71 can at least recovered part deformation to stretch into drive portion 20, so as to realize that elastic portion 71 is chimeric with drive portion 20.
In the present embodiment, close mutual one end on the moving direction X of sliding block 7 of two elastic arms in elastic portion 71
It is fixed together so that elastic portion 71 and body 70 surround a column structure with hollow via-hole closed,
Elastic portion 71 is domed on the whole, and its projecting height on moving direction X first gradually increases to crest and is gradually reduced again.
In the present embodiment, the arch that drive portion 20 is recessed for direction radially inward.
7th embodiment
Difference between 7th embodiment and sixth embodiment is：In the 7th embodiment, as shown in figure 14, elastic arm
71a, 71b are free end close to mutual one end on the moving direction X of sliding block, and elastic arm 71a, 71b are domed on the whole.
It should be noted that in the inventive solutions, the structure of sliding block when the drive portion on clutch collar is pit can
The structure of sliding block is identical during using with the drive portion on clutch collar to be raised, will not be repeated here.
It should be noted that in the inventive solutions, drive portion on clutch collar, elastic portion, body, bullet on sliding block
The shape and construction of property arm should not be limited to given embodiment, and it can make it according to the above-mentioned spirit of the invention referred to
The conversion of its form.For example, elastic portion can include multiple elastic arms extended from the side of body to center, it is all elastic
Circumferentially to arrange arm compartment of terrain, i.e. all elastic arm forms a circle, and each elastic arm is domed, or, elastic portion includes multiple
It is in the elastic arm that emitting shape extends to surrounding from the body.
In the present invention, each embodiment uses laddering literary style, emphasis description and the difference of previous embodiment, each to implement
Same section in example is referred to previous embodiment.
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art, this is not being departed from
In the spirit and scope of invention, it can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
The scope of restriction is defined.
Claims (14)
- A kind of 1. sliding block for synchronizer, it is characterised in that the sliding block is made of one piece by sheet material, and including body The elastic portion being connected with the body, the elastic portion are to protrude from the arcuate configuration of the body, the knot that arches upward Structure is symmetrical on a plane, to realize in the elastic deformation in the reverse direction of the projected direction of the elastic portion and in the protrusion Reset on direction, the plane perpendicular to the moving direction of the sliding block, parallel to the projected direction.
- 2. sliding block as claimed in claim 1, it is characterised in that the elastic portion includes two respectively from the two of the body The elastic arm of extension, two elastic arms are symmetrical on the plane among lateral.
- 3. sliding block as claimed in claim 2, it is characterised in that two elastic arms are on the moving direction close to each other One end be free end, the free end of two elastic arms separates each other in a free state.
- 4. sliding block as claimed in claim 2 or claim 3, it is characterised in that in two elastic arms, one of them described elastic arm Free end be provided with the first pin, the free end of another elastic arm is provided with the second pin, and first and second pin is hanging down Directly set in space crossings on the direction of the moving direction and projected direction.
- 5. sliding block as claimed in claim 2 or claim 3, it is characterised in that in two elastic arms, one of them described elastic arm Free end there is jack, the free end of another elastic arm has pin,In the case where the elastic portion is squeezed power, the pin non-contactly moves in the jack, the extruding The direction of power is opposite with the projected direction.
- 6. sliding block as claimed in claim 2 or claim 3, it is characterised in that two elastic arms are domed on the whole；OrEach elastic arm is domed, and two elastic arms are on the whole in double arches, and two elastic arms are in institute State and surround dented space close to mutual one end on moving direction.
- 7. sliding block as claimed in claim 2 or claim 3, it is characterised in that the sliding block is the column structure provided with hollow via-hole, institute State body and surround the hollow via-hole with elastic portion, the body includes bottom plate, the first side plate, the second side plate, the first top Plate and the second top plate；First top plate and the second top plate are in the same plane, and are set with the bottom plate parallel interval, described first Top plate and the second top plate are arranged at intervals along the moving direction；First side plate is between first top plate and bottom plate, and both ends are fixed with first top plate and bottom plate respectively Connection；Second side plate is between second top plate and bottom plate, and both ends are fixed with second top plate and bottom plate respectively Connection；Two elastic arms between first top plate and the second top plate, and two elastic arms away from each other one End is fixedly connected with first top plate, the second top plate respectively.
- 8. sliding block as claimed in claim 1, it is characterised in that the elastic portion include it is multiple from the side of the body to The elastic arm of center extension, all elastic arm compartment of terrains are circumferentially arranged；Or the elastic portion is including multiple from described Body is in the elastic arm that emitting shape extends to surrounding.
- 9. sliding block as claimed in claim 1, it is characterised in that the sheet material is spring steel plate.
- 10. a kind of synchronizer, including：Synchromesh gear hub, outer peripheral face are provided with groove；The clutch collar being set on the synchromesh gear hub, rotated with the rotation of the synchromesh gear hub, and can be relatively described Synchromesh gear hub is axially moveable, and the inner peripheral surface of the clutch collar is provided with drive portion；Synchronous ring positioned at synchromesh gear hub axial direction side；Characterized in that, the synchronizer also includes：It can axially movably be located at institute described in any one of claim 1 to 9 The sliding block in groove is stated, the elastic portion is located at the radial outside of the body；The clutch collar is axially moveable from neutral gear position until when reaching presynchronization position, and the drive portion and elastic portion are embedding Close, so that the clutch collar can drive the sliding block to be axially moveable, the clutch collar is at the presynchronization position, described Body portion offsets vertically with synchronous ring；The clutch collar continues to be axially moveable until reaching when gear is put, the drive after reaching the presynchronization position Portion is chimeric with elastic portion disengaging so that the clutch collar can relatively described sliding block be axially moveable；The clutch collar can be axially moveable by relatively described sliding block extrudes the elastic portion with direction radially inward Mode, to realize that the drive portion switches with elastic portion between state chimeric, that disengaging is chimeric.
- 11. synchronizer as claimed in claim 10, it is characterised in that the inner peripheral surface of the clutch collar is provided with limiting section, described Limiting section and the axially spaced setting of the drive portion；Positioned at described when gear is put, the limiting section points in the axial direction that gear is put the clutch collar along from the neutral gear position Direction withstands the elastic portion, to prevent the sliding block from removing outside the clutch collar.
- 12. synchronizer as claimed in claim 11, it is characterised in that the limiting section protrudes for direction radially inward Projection.
- 13. synchronizer as claimed in claim 11, it is characterised in that the quantity of the limiting section is two, two limits Position portion is presented axially in the both sides of the drive portion.
- 14. synchronizer as claimed in claim 10, it is characterised in that the drive portion protrudes for direction radially inward Projection, it is described raised in the dented space of the elastic portion when drive portion is chimeric with elastic portion, the drive portion with It is described raised outside the dented space when elastic portion departs from chimeric；OrThe drive portion is pit, and when the drive portion is chimeric with elastic portion, the elastic portion is located in the pit, the band When the portion of moving is chimeric with elastic portion disengaging, the elastic portion is located at outside the pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610405520.XA CN107477154B (en) | 2016-06-08 | 2016-06-08 | Synchronizer and sliding block thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610405520.XA CN107477154B (en) | 2016-06-08 | 2016-06-08 | Synchronizer and sliding block thereof |
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| CN107477154A true CN107477154A (en) | 2017-12-15 |
| CN107477154B CN107477154B (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483034A (en) * | 2021-06-30 | 2021-10-08 | 重庆长安汽车股份有限公司 | Synchronizer sliding block and synchronizer |
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| CN107477154B (en) | 2022-04-12 |
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