CN203822894U - Synchronizer and transmission - Google Patents
Synchronizer and transmission Download PDFInfo
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- CN203822894U CN203822894U CN201420098053.7U CN201420098053U CN203822894U CN 203822894 U CN203822894 U CN 203822894U CN 201420098053 U CN201420098053 U CN 201420098053U CN 203822894 U CN203822894 U CN 203822894U
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Abstract
The utility model aims to solve the technical problems of long shifting idle stroke, secondary impact and the like in the prior art, and provides a synchronizer and a transmission. The synchronizer comprises a synchronizer gear sleeve, a synchronizer gear hub, a synchronous ring and combined teeth, wherein the synchronous ring comprises a circular ring body; a locking boss is arranged on the outer ring surface of the circular ring body; an axially-penetrated demising groove is formed in the outer peripheral face of the synchronizer gear hub; the locking boss can move axially in the demising groove; two first locking surfaces assuming an included angle are formed at one end of the locking boss close to one side of the synchronizer gear hub; locking pairwise teeth for locking the locking boss are arranged on the inner peripheral face of the synchronizer gear sleeve; two second locking surfaces which correspond to the two first locking surfaces are formed on the end faces of the locking pairwise teeth. The synchronizer provided by the utility model contributes to cost control; meanwhile, the axial arrangement space of the synchronizer is reduced, shifting secondary impact and shifting noise are reduced, and the compactness of the overall arrangement structure of the transmission is facilitated.
Description
Technical field
The utility model belongs to speed changer field, particularly relates to a kind of synchronizer of speed changer.
Background technique
Synchronizer is the significant components in speed changer, realize in automobile gear shift process steady, light, rapid, without impact, noise free and extend the aspects such as gear life, play very important effect.
At present conventional inertia synchronizer comprises tooth cover, tooth hub, synchronizing ring and in conjunction with tooth, in the time of gearshift, tooth cover promotes synchronizing ring to close in conjunction with tooth, synchronizing ring and pass through frictional fit in conjunction with tooth, make to complete synchronous rotation in conjunction with tooth, and then tooth cover can be entered smoothly in conjunction with tooth transferring power, complete gearshift action.
In existing synchronizer, synchronizing ring comprises ring matrix, matrix is provided with internal taper hole,, with flange part, the outer annulus edge of flange part is provided with external spline teeth to be positioned at the bigger diameter end (being one end of adjacent combination tooth) of internal taper hole, and tooth is enclosed within the process of sliding in conjunction with tooth, the internal spline of tooth cover first coordinates with the external splines locking of synchronizing ring, avoid synchronizer in the time not reaching synchronous tooth cover with engage in conjunction with tooth, realize synchronous rear tooth overlap internal spline so that with engage in conjunction with tooth, realize transmission of power.
But existing synchronizer design, automobile is longer in shift process idle stroke, and has the pause and transition in rhythm or melody phenomenon of secondary pulse, and shifting comfort has much room for improvement.
Model utility content
Technical problem to be solved in the utility model is the defect such as length and secondary pulse of gearshift idle stroke for prior art, and a kind of synchronizer is provided.
It is as follows that the utility model solves the problems of the technologies described above adopted technological scheme:
A kind of synchronizer is provided, comprise synchronizer gear sleeve, synchromesh gear hub, synchronizing ring and in conjunction with tooth, described synchronizer gear sleeve is successively with described synchromesh gear hub, synchronizing ring with socket-connect in conjunction with tooth, wherein, described synchronizing ring comprises ring body, the inner ring surface of described ring body is provided with interior cone of friction, and described combination tooth is provided with the external friction conical surface matching with described interior cone of friction; The outer ring surface of described ring body is provided with locking boss, and the outer circumferential face of described synchromesh gear hub is provided with the slot to make way of axial perforation, and described locking boss can displacement vertically in described slot to make way; Described locking boss one end near described synchromesh gear hub one side is provided with two the first locking faces that have angle, the inner peripheral surface of described synchronizer gear sleeve is provided with locking for locking boss described in locking to tooth, and described locking is provided with two the second locking faces corresponding with described two the first locking faces to the end face of tooth.
Further, described locking boss is vertically through the outer ring surface of described ring body, and the both ends of the surface of described locking boss are mutually concordant with the both ends of the surface of described ring body.Like this, the axial thickness of described locking boss just equals the axial thickness of described ring body, makes described locking boss have intensity enough and that be greater than the external spline teeth of synchronizing ring in prior art, to be more suitable for the designing requirement of speed changer.
Further, described locking boss is a bucking ladder, and two the first locking faces of described locking boss are respectively perpendicular to the outer ring surface of described ring body, and the scope of the angle between described two the first locking faces is 80 °～130 °.Like this, between two the first locking faces because of described locking boss, be provided with angle, described locking is provided with two the second locking faces corresponding with described two the first locking faces to the end face of tooth simultaneously, can be in the presynchronization process of described synchronizing ring, synchronizing ring is angle of deflection under the effect of friction torque, now the first locking face on the locking boss of synchronizing ring is just in time attached on the second locking face of synchronizer gear sleeve, produces locking effect; Angle design between two the first locking faces, is preferably 80 °～130 °, more preferably 95 °～115 °, if crossing senior general, angle cause gear shifting force large, affect shifting comfort, cause the asynchronous tooth abnormal sound of beating of the early stage appearance of synchronizer if angle is crossed young pathbreaker, affect the synchronizer life-span.
Further, the inner peripheral surface of described synchronizer gear sleeve is provided with internal spline, the outer circumferential face of described synchromesh gear hub is provided with the external splines being meshed with described internal spline, described locking comprises to tooth the isometric short tooth that pair of parallel arranges, the length of described short tooth is less than the length of described internal spline, and the height of described short tooth equates with the height of described internal spline; Described locking boss is mutually concordant away from the end face of the end face of described ring body and the external splines of described synchromesh gear hub.Like this, described synchronizer gear sleeve and described synchromesh gear hub pass through spline fitted, realization slides axially and rotating gang, described locking equates with the internal spline height of described synchronizer gear sleeve the short tooth of tooth, described locking boss equates with the external splines height of described synchromesh gear hub, above-mentionedly slide axially, under the requirement of the function such as rotating gang and synchronous locking, also there is structural design and manufacturing process simple meeting like this, be convenient to the advantages such as processing; In addition,, because the length of described short tooth is less than the length of described internal spline, in the time that described locking boss and described locking are had an effect to tooth locking, the internal spline of described synchronizer gear sleeve, near in conjunction with tooth, is conducive to shorten idle stroke like this.
Further, described two the second locking faces are located at respectively same one end of described two short teeth and are oppositely arranged and have angle, and the angle between the angle between described two the second locking faces and described two the first locking faces is consistent; The area of described the second locking face is greater than the orthogonal cross-section area (perpendicular to the axial short tooth cross sectional area of short tooth) of described short tooth.Like this, consistent because of the angle between the angle between described two the second locking faces and described two the first locking faces, can make described locking boss and locking add laminating accurately to dental transition, realize smoothly locking synchronizing function; Simultaneously, because described the second locking face is an oblique cross section that runs through described short tooth ends, its area is greater than the orthogonal cross-section area of described short tooth, so also further strengthened the pertinent relation between the second locking face and described the first locking face, effective guarantee laminating intensity and smooth and easy degree.
Further, the outer ring surface of described synchronizing ring ring body is provided with deflection boss, and the outer circumferential face of described synchromesh gear hub is provided with the slide block slot of axial perforation, is provided with the slide block that can promote vertically described deflection boss in described slide block slot; The inner peripheral surface of described synchronizer gear sleeve is provided with positioning groove, and described slide block is provided with the elasticity thimble matching with described locating slot.Like this, in the time carrying out gear shift operation, synchronizer gear sleeve is to moving in conjunction with tooth direction under the effect of gear shifting force, and now slide block moves and rely on the deflection boss of synchronizing ring with synchronizer gear sleeve, produces presynchronization effect.
Further, the half of transverse tooth thickness on the root circle that the gap between the sidewall of described slot to make way and the sidewall of described locking boss is described external splines, described locking boss can along the circumferential direction (being the circumferencial direction of synchronizing ring) deflection in described slot to make way.Like this, in the time of gear shift operation, can ensure the displacement vertically in described slot to make way smoothly of described locking boss, can make again described synchronizing ring and described combination tooth that friction occurs time, can there is a little deflection along circumferencial direction in described locking boss, can not hinder described locking boss and the latch functions of described locking between cog.
Further, described locking boss and described deflection boss interval arrange, and the quantity of described locking boss and described deflection boss is 3, and described locking boss and described deflection boss are evenly arranged along the outer ring surface of described ring body.Like this, because described locking boss and deflection boss are 3, interval, uniform, like this layout can ensure in the time of gear shift operation described in synchronizing ring respectively to stress equalization, make synchronizing process keep smooth and easy.
Further, described synchronizing ring and described combination tooth are two, are respectively in the both sides of described synchromesh gear hub.Like this, can meet described synchronizer gear sleeve, on both direction, described combination tooth be realized to synchronizing function.
Further, the scope of the cone angle of described interior cone of friction and the described external friction conical surface is 6 °～10 °.Because of synchronizing ring with in conjunction with the cone of friction that is provided with of tooth, make the rotating speed of synchronizer input end and output terminal reach consistent by the friction torque of cone of friction, coordinate synchronous ring structure of the present utility model, the cone angle design of cone of friction is preferably within the scope of 6 °～10 °, more preferably 7 °～9 °, cone angle cross young pathbreaker cause synchronizing ring with in conjunction with the conical surface locking of tooth, cone angle is crossed senior general and reduces the synchronous capacity of synchronizer, impact gearshift performance.
For solving the problems of the technologies described above, the utility model also provides a kind of speed changer that comprises above-mentioned synchronizer.
The beneficial effects of the utility model: because traditional synchronizing ring is provided with external spline teeth structure on ring body outer ring surface flange, by the spline tooth of synchronizing ring avoid synchronizer in the time not reaching synchronous synchronizer gear sleeve with engage in conjunction with tooth, but the axial thickness of traditional its external spline teeth of synchronizing ring can directly have influence on the idle stroke of synchronizer gear sleeve after synchronously, model utility people of the present utility model studies discovery, although can reduce idle stroke to reduce gearshift secondary pulse by reducing the axial thickness of synchronizing ring external spline teeth, but will have influence on the intensity of synchronizing ring external spline teeth.Compared with conventional art, the utility model has been cancelled the external spline teeth structure of synchronizing ring, in shortening the axial arranged space of synchronizer, has also reduced gearshift secondary pulse and gearshift noise, meets the designing requirement of speed changer compactedness and shifting comfort; On the other hand, cancel the external spline teeth structure of conventional synchronization ring, adopt locking boss structure of the present utility model, reduce the manufacture difficulty of synchronizing ring forge die, be conducive to the manufacture of synchronizing ring forge die, and be conducive to cost control, and under the prerequisite that does not affect synchronizer performance, reduce the axial arranged space of synchronizer simultaneously, be conducive to the compactedness of speed changer integral arrangement structure; Again on the one hand, the locking increasing on synchronizer gear sleeve is to tooth and locking face thereof, corresponding with locking boss and the locking face thereof of synchronizing ring, guarantee smooth and easy when realizing latch functions, effectively shorten the idle stroke of synchronizer gear sleeve after synchronously, reduce gearshift secondary pulse, greatly improved shifting comfort.
Brief description of the drawings
Fig. 1 is the synchronizer schematic diagram that the utility model one embodiment provides;
Fig. 2 is the synchronizer gear sleeve schematic diagram that the utility model one embodiment provides;
Fig. 3 is the synchromesh gear hub schematic diagram that the utility model one embodiment provides;
Fig. 4 is the synchronizing ring schematic diagram that the utility model one embodiment provides;
Fig. 5 is the combination tooth schematic diagram that the utility model one embodiment provides;
Fig. 6 is the local enlarged diagram of Fig. 2;
Fig. 7 is the local enlarged diagram of Fig. 4;
Fig. 8 is the synchronizer assembly position relationship schematic diagram that the utility model one embodiment provides;
Fig. 9 is the synchronizer working procedure schematic diagram that the utility model one embodiment provides.
Reference character in Figure of description is as follows:
1, synchronizer gear sleeve; 2, synchromesh gear hub; 3, synchronizing ring; 4, in conjunction with tooth; 5, slide block; 11, locking is to tooth; 12, synchronizer gear sleeve internal spline; 15, positioning groove; 21, slot to make way; 22, synchromesh gear hub external splines; 23, synchromesh gear hub internal spline; 25, slide block slot; 30, ring body; 31, locking boss; 33, interior cone of friction; 35, deflection boss; 42, in conjunction with tooth external splines; 44, the external friction conical surface; 51, elasticity thimble; 111, the second locking face; 311, the first locking face.
Embodiment
Clearer for technical problem, technological scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is described in further detail.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
In description of the present utility model, it will be appreciated that, term " interior ", " outward ", " on ", orientation or the position relationship of the instruction such as " top " be orientation or the position relationship based on shown in respective drawings, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, construct and operation with specific orientation, therefore can not be interpreted as restriction of the present utility model.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " layout ", " setting ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be to be directly connected, also can indirectly be connected by intermediary.For the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in the utility model.
As shown in Figure 1, a kind of synchronizer that the utility model one embodiment provides, comprise synchronizer gear sleeve 1, synchromesh gear hub 2, synchronizing ring 3 and in conjunction with tooth 4, described synchronizer gear sleeve 1 is successively with described synchromesh gear hub 2, synchronizing ring 3 with socket-connect in conjunction with tooth 4, to promote described synchronizing ring near in conjunction with tooth, realize synchronizeing of described synchronizer gear sleeve and described combination tooth; In shift process, described synchronizer gear sleeve 1, under the stirring of selector fork (not shown), promotes described synchronizing ring 3 near in conjunction with tooth 4, realizes synchronizeing of described synchronizer gear sleeve 1 and described combination tooth 4.In the present embodiment, described synchronizer gear sleeve 1 is to apply Driving force by the slide block 5 to being mated, and described slide block 5 promotes described synchronizing ring 3 to close in conjunction with tooth 4, and then realizes synchronous.
As shown in Fig. 4 and Fig. 7, the described synchronizing ring 3 of the present embodiment comprises ring body 30, the inner ring surface of described ring body 30 is provided with interior cone of friction 33, the outer ring surface of described ring body 30 is provided with locking boss 31 and deflection boss 35, described locking boss 31 is vertically through the outer ring surface of described ring body 30, and the both ends of the surface of described locking boss 31 are mutually concordant with the both ends of the surface of described ring body 30.Like this, the axial thickness of described locking boss 31 just equals the axial thickness of described ring body 30, described locking boss 31 is had enough and much larger than the intensity of the external spline teeth of synchronizing ring 3 in prior art, to be more suitable for the designing requirement of speed changer.In the present embodiment, described locking boss 31 is a bucking ladder, described locking boss 31 one end near described synchromesh gear hub 2 one sides are provided with two the first locking faces 311 that have angle, two the first locking faces 311 of described locking boss 31 are respectively perpendicular to the outer ring surface of described ring body 30, angle between described two the first locking faces 311 is 80 °～130 °, more preferably 95 °～115 °, if crossing senior general, angle cause gear shifting force large, affect shifting comfort, if angle is crossed young pathbreaker and is caused the asynchronous tooth abnormal sound of beating of the early stage appearance of synchronizer, affect the synchronizer life-span.Described locking boss 31 and described deflection boss 35 intervals arrange, and the quantity of described locking boss and described deflection boss is 3, and described locking boss 31 and described deflection boss 35 are evenly arranged along the outer ring surface of described ring body.Like this, because described locking boss 31 and deflection boss 35 are 3, interval, uniform, like this layout can ensure in the time of gear shift operation described in synchronizing ring 3 respectively to stress equalization, make synchronizing process keep smooth and easy.
As shown in figures 1 and 3, in the present embodiment, the outer circumferential face of described synchromesh gear hub 2 is provided with the slot to make way 21 of axial perforation, and described locking boss 31 can displacement vertically in described slot to make way 21; The outer circumferential face of described synchromesh gear hub 2 is also provided with external splines 22, and described locking boss 31 is mutually concordant away from the end face of the end face of described ring body and the external splines 22 of described synchromesh gear hub 2; The outer circumferential face of described synchromesh gear hub 2 is also provided with the slide block slot 25 of axial perforation, is provided with the slide block 5 that can promote vertically described deflection boss 35 in described slide block slot 25.The inner peripheral surface of described synchromesh gear hub 2 is also provided with the internal spline 23 for fixing input shaft (or output shaft), and like this, the power after the utility model synchronizer is synchronous just can transmit by described input shaft (or output shaft).Gap between the sidewall of the sidewall of described slot to make way 21 and described locking boss 31 is the half of transverse tooth thickness on the root circle of described external splines 22, and described locking boss can along the circumferential direction (being the circumferencial direction of synchronizing ring) deflection in described slot to make way.Like this, in the time of gear shift operation, can ensure the displacement vertically in described slot to make way 21 smoothly of described locking boss 31, can make again described synchronizing ring and described combination tooth that friction occurs time, can there is a little deflection along circumferencial direction in described locking boss, can not hinder described locking boss 31 and described locking to the latch functions between tooth 11.
As shown in Figure 2 and Figure 6, in the present embodiment, the inner peripheral surface of described synchronizer gear sleeve 1 is provided with internal spline 12, described internal spline 12 is meshed with the external splines 22 of described synchromesh gear hub 2, the inner peripheral surface of described synchronizer gear sleeve 1 is also provided with positioning groove 15, more specifically, on described positioning groove 15 settings and described internal spline 12, described slide block 5 is provided with the elasticity thimble 51 matching with described locating slot.Like this, in the time carrying out gear shift operation, synchronizer gear sleeve 1 is to moving in conjunction with tooth 4 directions under the effect of gear shifting force, and now slide block 5 moves and rely on the deflection boss 35 of synchronizing ring 3 with synchronizer gear sleeve 1, produces presynchronization effect.The inner peripheral surface of described synchronizer gear sleeve 1 is also provided with locking for locking boss 31 described in locking to tooth 11, and described locking is provided with two the second locking faces 111 corresponding with described two the first locking faces 311 to the end face of tooth 11.Described locking comprises to tooth 11 the isometric short tooth that pair of parallel arranges, and the length of described short tooth is less than the length of described internal spline 12, and the height of described short tooth equates with the height of described internal spline 12.Like this, between two the first locking faces 311 because of described locking boss 31, be provided with angle, described locking is provided with two the second locking faces 111 corresponding with described two the first locking faces 311 to the end face of tooth 11 simultaneously, can be in the presynchronization process of described synchronizing ring 3, synchronizing ring 3 is angle of deflection under the effect of friction torque, now the first locking face 311 on the locking boss 31 of synchronizing ring 3 is just in time attached on the second locking face 111 of synchronizer gear sleeve 1, produces locking effect; Simultaneously, described synchronizer gear sleeve 1 passes through spline fitted with described synchromesh gear hub 2, realization slides axially and rotating gang, described locking highly equates with the internal spline 12 of described synchronizer gear sleeve 1 the short tooth of tooth 11, described locking boss 31 is mutually concordant away from the end face of the end face of described ring body and the external splines 22 of described synchromesh gear hub 2, like this meet above-mentionedly slide axially, under the requirement of the function such as rotating gang and synchronous locking, also there is structural design and manufacturing process is simple, be convenient to the advantages such as processing; In addition,, because the length of described short tooth is less than the length of described internal spline, in the time that described locking boss and described locking are had an effect to tooth locking, the internal spline of described synchronizer gear sleeve, near in conjunction with tooth, is conducive to shorten idle stroke like this.In the present embodiment, described two the second locking faces 111 are located at respectively same one end of described two short teeth and are oppositely arranged and have angle, and the angle between the angle between described two the second locking faces 111 and described two the first locking faces 311 is consistent; The area of described the second locking face 111 is greater than the orthogonal cross-section area (perpendicular to the axial short tooth cross sectional area of short tooth) of described short tooth.Like this, consistent because of the angle between angle and described two first locking faces 311 of 111, described two the second locking faces, can make described locking boss 31 and locking fit more accurately to tooth 11, realize smoothly locking synchronizing function; Simultaneously, because described the second locking face 111 is an oblique cross section that runs through described short tooth ends, its area is greater than the orthogonal cross-section area of described short tooth, so also further strengthened the pertinent relation between the second locking face 111 and described the first locking face 311, effective guarantee laminating intensity and smooth and easy degree.
As shown in Figure 5, shown in comprise a circular matrix in conjunction with tooth 4, the outer circumferential face of described circular matrix one end is provided with external splines 42, one end of described circular matrix and gear (not shown) are fixed, in the synchronizing process of sliding to described combination tooth 4 at described synchronizing ring 3 tooth covers, the internal spline 12 of described synchronizing ring 3 teeth covers is meshed with the external splines 42 of described combination tooth 4, realized inputing or outputing of power on gear.Described combination tooth 4 is provided with the external friction conical surface 44 matching with described interior cone of friction 33; The scope of the cone angle of described interior cone of friction 33 and the described external friction conical surface 44 is 6 °～10 °.Because of synchronizing ring 3 with in conjunction with the cone of friction that is provided with of tooth 4, make the rotating speed of synchronizer input end and output terminal reach consistent by the friction torque of cone of friction, coordinate synchronizing ring 3 structures of the present utility model, the cone angle design of cone of friction is preferably within the scope of 6 °～10 °, more preferably 7 °～9 °, cone angle is crossed young pathbreaker and is caused synchronizing ring 3 and conical surface locking in conjunction with tooth 4, and cone angle is crossed senior general and reduce the synchronous capacity of synchronizer, impact gearshift performance.
In another embodiment of the present utility model, described synchronizing ring 3 and described combination tooth 4 are two, are respectively in the both sides (not shown) of described synchromesh gear hub 2.Like this, can meet the combination tooth 4 of described synchronizer gear sleeve 1 on both direction and realize synchronizing function.
Embodiment of the present utility model also provides a kind of speed changer that comprises above-mentioned synchronizer, and the detail of speed changer does not describe in detail at this.
As shown in Figure 8 and Figure 9, the utility model embodiment's synchronizer, by following function mode work:
While gearshift, under the effect of selector fork, synchronizer gear sleeve 1 is to moving in conjunction with tooth 4 directions, due to the matching relationship of the elasticity thimble 51 of slide block 5 and the positioning groove 15 of described synchronizer gear sleeve 1, now described slide block 5 is along with described synchronizer gear sleeve 1 moves to described combination tooth 4 directions together, in the time that described slide block 5 relies on the deflection boss 35 of described synchronizing ring 3, produce presynchronization effect; Described synchronizing ring 3 is close described combination tooth 4 under the promotion of described slide block 5, the interior cone of friction 33 of described synchronizing ring 3 rubs with the external friction conical surface 44 of described combination tooth 4, described synchronizing ring 3 is angle of deflection under the effect of friction torque, now the first locking face 311 on the locking boss 31 of synchronizing ring 3 is just in time attached to locking on described synchronizer gear sleeve 1 and, on the second locking face 111 of tooth 11, produces locking effect; The friction torque that the cone of friction of described synchronizing ring 3 and described combination tooth 4 produces make the input end of synchronizer and output terminal rotating speed consistent after, locking effect disappears, on described synchronizer gear sleeve 1, locking is pushed the first locking face 311 of locking boss 31 in described synchronizing ring 3 aside to the second locking face 111 of tooth 11, and described synchronizer continues to move to described combination tooth 4 directions under the effect of gear shifting force; Finally, the internal spline 12 of described synchronizer gear sleeve 1 is meshed with the external splines 42 of described combination tooth 4, and synchronizing process finishes, and complete whole gearshift action, thereby the power of having realized on the gear being connected with described combination tooth 4 inputs or outputs.
Synchronizer of the present utility model, because having cancelled the external spline teeth structure of synchronizing ring 3, in shortening the axial arranged space of synchronizer, has also reduced gearshift secondary pulse and gearshift noise, meets the designing requirement of speed changer compactedness and shifting comfort; On the other hand, cancel the external spline teeth structure of conventional synchronization ring 3, adopt locking boss 31 structures of the present utility model, reduce the manufacture difficulty of synchronizing ring 3 forge dies, be conducive to the manufacture of synchronizing ring 3 forge dies, and be conducive to cost control, and under the prerequisite that does not affect synchronizer performance, reduce the axial arranged space of synchronizer simultaneously, be conducive to the compactedness of speed changer integral arrangement structure; Again on the one hand, the locking increasing on synchronizer gear sleeve 1 is to tooth 11 and locking face thereof, corresponding with locking boss 31 and the locking face thereof of synchronizing ring 3, guarantee smooth and easy when realizing latch functions, effectively shorten the idle stroke of synchronizer gear sleeve 1 after synchronously, reduce gearshift secondary pulse, greatly improved shifting comfort.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (11)
1. a synchronizer, comprise synchronizer gear sleeve, synchromesh gear hub, synchronizing ring and in conjunction with tooth, described synchronizer gear sleeve is successively with described synchromesh gear hub, synchronizing ring with socket-connect in conjunction with tooth, it is characterized in that, described synchronizing ring comprises ring body, the inner ring surface of described ring body is provided with interior cone of friction, and described combination tooth is provided with the external friction conical surface matching with described interior cone of friction; The outer ring surface of described ring body is provided with locking boss, and the outer circumferential face of described synchromesh gear hub is provided with the slot to make way of axial perforation, and described locking boss can displacement vertically in described slot to make way; Described locking boss one end near described synchromesh gear hub one side is provided with two the first locking faces that have angle, the inner peripheral surface of described synchronizer gear sleeve is provided with locking for locking boss described in locking to tooth, and described locking is provided with two the second locking faces corresponding with described two the first locking faces to the end face of tooth.
2. synchronizer according to claim 1, is characterized in that, described locking boss is vertically through the outer ring surface of described ring body, and the both ends of the surface of described locking boss are mutually concordant with the both ends of the surface of described ring body.
3. synchronizer according to claim 1, is characterized in that, two the first locking faces of described locking boss are respectively perpendicular to the outer ring surface of described ring body, and the scope of the angle between described two the first locking faces is 80 °～130 °.
4. synchronizer according to claim 1, it is characterized in that, the inner peripheral surface of described synchronizer gear sleeve is provided with internal spline, the outer circumferential face of described synchromesh gear hub is provided with the external splines being meshed with described internal spline, described locking comprises to tooth the isometric short tooth that pair of parallel arranges, the length of described short tooth is less than the length of described internal spline, and the height of described short tooth equates with the height of described internal spline; Described locking boss is mutually concordant away from the end face of the end face of described ring body and the external splines of described synchromesh gear hub.
5. synchronizer according to claim 4, it is characterized in that, described two the second locking faces are located at respectively same one end of described two short teeth and are oppositely arranged and have angle, and the angle between the angle between described two the second locking faces and described two the first locking faces is consistent; The area of described the second locking face is greater than the orthogonal cross-section area of described short tooth.
6. synchronizer according to claim 4, it is characterized in that, gap between the sidewall of the sidewall of described slot to make way and described locking boss is the half of transverse tooth thickness on the root circle of described external splines, and described locking boss can along the circumferential direction deflection in described slot to make way.
7. synchronizer according to claim 1, it is characterized in that, the outer ring surface of the ring body of described synchronizing ring is provided with deflection boss, and the outer circumferential face of described synchromesh gear hub is provided with the slide block slot of axial perforation, is provided with the slide block that can promote vertically described deflection boss in described slide block slot; The inner peripheral surface of described synchronizer gear sleeve is provided with positioning groove, and described slide block is provided with the elasticity thimble matching with described locating slot.
8. synchronizer according to claim 7, it is characterized in that, described locking boss and described deflection boss interval arrange, and the quantity of described locking boss and described deflection boss is 3, and described locking boss and described deflection boss are evenly arranged along the outer ring surface of described ring body.
9. synchronizer according to claim 1, is characterized in that, described synchronizing ring and described combination tooth are two, are respectively in the both sides of described synchromesh gear hub.
10. synchronizer according to claim 1, is characterized in that, the scope of the cone angle of described interior cone of friction and the described external friction conical surface is 6 °～10 °.
11. 1 kinds of speed changers, is characterized in that, comprise the synchronizer as described in claim 1-10 any one.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420098053.7U CN203822894U (en) | 2014-03-05 | 2014-03-05 | Synchronizer and transmission |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420098053.7U CN203822894U (en) | 2014-03-05 | 2014-03-05 | Synchronizer and transmission |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895950A (en) * | 2014-03-05 | 2015-09-09 | 广州汽车集团股份有限公司 | Synchronizer and speed changer |
| CN109477529A (en) * | 2016-06-20 | 2019-03-15 | 各特拉格·福特传动系统公司 | Synchronizer for speed changer |
| WO2019062549A1 (en) * | 2017-09-27 | 2019-04-04 | Ningbo Geely Automobile Research & Development Co., Ltd. | A transmission device |
-
2014
- 2014-03-05 CN CN201420098053.7U patent/CN203822894U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895950A (en) * | 2014-03-05 | 2015-09-09 | 广州汽车集团股份有限公司 | Synchronizer and speed changer |
| CN109477529A (en) * | 2016-06-20 | 2019-03-15 | 各特拉格·福特传动系统公司 | Synchronizer for speed changer |
| CN109477529B (en) * | 2016-06-20 | 2020-08-14 | 各特拉格·福特传动系统公司 | Synchronization apparatus for transmission |
| US10935082B2 (en) | 2016-06-20 | 2021-03-02 | Getrag Ford Transmissions Gmbh | Synchronizer device for a manual transmission |
| WO2019062549A1 (en) * | 2017-09-27 | 2019-04-04 | Ningbo Geely Automobile Research & Development Co., Ltd. | A transmission device |
| US11231075B2 (en) | 2017-09-27 | 2022-01-25 | Ningbo Geely Automobile Research & Development Co. | Transmission device |
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