CN103133554A - Synchronization device for speed transmission - Google Patents
Synchronization device for speed transmission Download PDFInfo
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- CN103133554A CN103133554A CN2012103805836A CN201210380583A CN103133554A CN 103133554 A CN103133554 A CN 103133554A CN 2012103805836 A CN2012103805836 A CN 2012103805836A CN 201210380583 A CN201210380583 A CN 201210380583A CN 103133554 A CN103133554 A CN 103133554A
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Abstract
The invention provides a synchronization device for a speed transmission. In the synchronization device having a structure where preceding teeth are arranged on spline teeth of a synchronization joint sleeve and a part of tooth embedded gears on a locking ring are removed at an interval, movement of a synchronization spring which moves long the axial direction can be restricted by using a structure characterized by part machining simplicity. Missing tooth parts (36) are arranged an the outer periphery of the locking ring (30), and the missing tooth parts are the parts which are formed by removing a part of multiple tooth embedded gears (33) at an interval, and the multiple tooth embedded gears (33) are arranged along the circumferential direction in an evenly-spaced manner. Protruding seat parts which bulge from an inner peripheral edge (40a) of the synchronization spring (40) toward an external diameter side are formed at the missing tooth parts (36), and therefore the synchronization spring (40) which moves along the axial direction due to push and press of the spline teeth (11) of the synchronization joint sleeve can be obstructed by using the seat parts (39). Therefore the synchronization spring (40) arranged at a position corresponding to the missing tooth parts (36) can be prevented from crossing the arrangement places of the tooth embedded gears (33) and flying out toward the side of a speed transmission gear wheel (20).
Description
Technical field
The present invention relates to the middle synchronizers (synchromesh gear) that use such as manual transmission of automobile.
Background technique
The manual transmission (manual transmission) that is equipped on automobile etc. constitutes, and according to the operation of shift level, the engagement of the gear of each grade is changed, thereby switches gear.Thus, come the driving force of the driving sources such as conversion and output engine according to driving conditions, drive wheel.In such manual transmission, for example as shown in patent documentation 1, be provided with for the synchronizer (synchromesh gear) of carrying out rapidly and easily gear shifting operation.
In above-mentioned synchronizer, synchronous connection sleeve pushing lock ring (synchronizer ring), thus produce Simultaneous Load at its rubbing surface, make it the front speed change gear that has produced differential rotation and synchronize with synchronous connection sleeve.Then, the lock ring that finishes to work is pushed aside by synchronous connection sleeve.Next, synchronous connection sleeve is pushed the spline tooth (dental inlay spline) of speed change gear side aside, lock ring due to synchronous connection sleeve after pushing through does not produce Simultaneous Load, therefore, small differential rotation can occur until contact (so-called step-out (collapsing れ the same period)) with the dental inlay spline in the spline tooth of synchronous connection sleeve.In the situation that this step-out occurs, the spline tooth of synchronous connection sleeve and dental inlay spline interfere, thereby produce undesirable vibration.This phenomenon is generally known as into second gear (two sections enter リ) or second gear action (two Duan モ ー シ ヨ Application), becomes the reason that makes the shift feel variation.
Therefore, as the countermeasure that reduces such secondary and enter, in the described technology of patent documentation 1, push by dental inlay the spline tooth that the different long and short two tooth of the such length of tooth (tooth in advance) and the synchronous gear with synchronous effect (retreating tooth) consists of synchronous connection sleeve aside, with respect to retreating tooth with the dental inlay tooth butt of lock ring and with what it was pushed aside, make clamp-on the dental inlay spline tooth in advance in advance, reduce thus the generation that the caused secondary of step-out enters.And, in this structure, when retreating the dental inlay tooth butt of tooth and lock ring, interfere for fear of other dental inlay tooth of tooth and lock ring in advance, make dental inlay tooth hypodontia lock ring and part that tooth is corresponding in advance.That is, the dental inlay tooth of being located at lock ring, namely arranges with along circumferentially arranging with the state of uniformly-spaced ground, several dental inlays space of teeth being removed discontinuously at the outer circumferential face of lock ring.
On the other hand, in the synchronizer of the such spring shown in patent documentation 2, possess the synchronisation spring of ring-type, the synchronisation spring of this ring-type is arranged between the end of the dental inlay tooth of outer circumferential side of lock ring and synchronous hub.This synchronisation spring is moved vertically by the pushing of the end of the spline tooth of synchronous connection sleeve when synchronization motion, has thus the effect that lock ring is pressed to the speed change gear thruster.Thus, make rubbing surface friction apply between lock ring and speed change gear.At this moment, the synchronisation spring that is pushed vertically by the spline tooth of synchronous connection sleeve is stopped by the end face of the adjacent dental inlay tooth of lock ring.
; in the synchronizer with tooth in advance as described above, due to (making its hypodontia) removed in a part of compartment of terrain of the dental inlay tooth of lock ring, therefore; remove at this dental inlay tooth the part that forms with being spaced apart, can't stopping that synchronisation spring is to limit its axial movement.Therefore, there is following situation: pushed by synchronous connection sleeve and the part corresponding with toothless portion) of mobile synchronisation spring crossed the arrangement position of dental inlay tooth and gone out to the speed change gear thruster.Thus, the synchronisation spring unfavorable condition such as may deform.If just in case such situation occurs, when the synchronization motion of synchronizer, the different sounds such as so-called gear noiose may occur, or occur synchronously bad.
Patent documentation 1: No. 4121821 communiques of Japan's special permission
Patent documentation 2: 2011-No. 64308 communiques of TOHKEMY
Summary of the invention
The present invention completes in view of the above problems, its purpose is to provide a kind of synchronizer of speed changer, in the synchronizer of the structure of a part of hypodontia of the dental inlay tooth that makes lock ring, the processing of parts is simple, the action of the synchronisation spring that is pushed by synchronous connection sleeve can be limited with cheap structure, the unfavorable condition such as prevent that synchronisation spring from deforming.
be the synchronizer (1) of speed changer for the present invention who solves above-mentioned problem, the synchronizer of described speed changer (1) possesses: speed change gear (20), and it is can counterrotating mode being supported on running shaft (2), synchronous hub (5), itself and running shaft (2) combination, synchronous connection sleeve (10), it is combined with the periphery spline of synchronous hub (5) in the mode that can move vertically, spline tooth (11), it is formed at the interior week of synchronous connection sleeve (10), lock ring (30), it is configured between synchronous hub (5) and speed change gear (20), and can carry out friction apply with speed change gear (20) side, dental inlay spline (26), it is formed at the periphery of speed change gear (20), and can mesh with the spline tooth (11) of synchronous connection sleeve (11), dental inlay tooth (33), it is formed at the periphery of lock ring (30), and can mesh with the spline tooth (11) of synchronous connection sleeve (11), and the synchronisation spring of ring-type (40), its outer circumferential side and dental inlay tooth (33) at lock ring (30) is adjacent to arrange, described synchronisation spring (40) is by can being moved vertically by the spline tooth of synchronous connection sleeve (10) (11) pushing, the synchronizer of described speed changer (1) is characterised in that, periphery at lock ring (30) is provided with toothless portion) (36), described toothless portion) (36) is that the part that forms is removed on the ground, a part of dental inlay space of teeth along a plurality of dental inlay teeth (33) of circumferentially equally spaced arranging, be formed with the seat section (39) of overshooting shape at toothless portion) (36), described seat section (39) is more side-prominent to external diameter than the inner circumference edge (40a) of synchronisation spring (40).
In the synchronizer of speed changer of the present invention, as described above, the seat section of overshooting shape is set at toothless portion), this toothless portion) is the ground, dental inlay space of teeth of the periphery of lock ring to be removed form.According to this structure, can utilize a section to stop by the pushing of the spline tooth of synchronous connection sleeve and mobile synchronisation spring.Therefore, in tooth is arranged at the synchronizer of the structure of the spline tooth of synchronous connection sleeve in advance, by the ground, dental inlay space of teeth of lock ring is removed, can be in the action smoothly of guaranteeing synchronous connection sleeve, the arrangement position that the limits synchronization spring is crossed the dental inlay tooth flies out to the speed change gear side.Therefore, the unfavorable condition such as can prevent that synchronisation spring from deforming, thus can avoid breaking down in synchronization motion.
In addition, in above-mentioned synchronizer, seat section (39) can be the nubbin after the part of each dental inlay tooth (33) that should equally spaced arrange in toothless portion) (36) is removed.According to this structure, excise etc. by utilization the part of the dental inlay tooth of in a plurality of dental inlay teeth of equally spaced forming along the periphery of lock ring in advance, corresponding with toothless portion) part is removed, can consist of seat section with this nubbin.Therefore, can produce lock ring of the present invention with simple operation cheaply.In addition, when the part of dental inlay tooth is removed, only just can carry out the adjustment of the outstanding size of a section by regulating its removal amount, make synchronisation spring not side-prominent to speed change gear so can constitute with simple operation.
In addition, in this case can for, dental inlay tooth (33) has: tooth root section (34), its outstanding outer circumferential face that is formed at lock ring (30); With crown section (35), it is integrally formed in the upper end portion (end of outside diameter) of this tooth root section (34), the end face (34a) by synchronisation spring (40) side of tooth root section (34) is plane, the end face by synchronisation spring (40) side of crown section (35) is the tip shape, and the seat section (39) of toothless portion) (36) is the shape identical with the tooth root section (34) of dental inlay tooth (33).
According to this structure, by consisted of the dental inlay tooth of lock ring by above-mentioned tooth root section and crown section, and make the seat section that is located at toothless portion) form the shape identical with the tooth root section of dental inlay tooth, thus, the crown section of each dental inlay tooth of the part by will be corresponding with toothless portion) removes, thereby can be that tooth root section consists of seat of the present invention section with its nubbin.Therefore, can form seat section with simpler manufacturing procedure.In addition, because the end face by the synchronisation spring side of the shape seat section identical with tooth root section is plane, therefore, thereby can hinder reliably shelves for mobile vertically synchronisation spring butt.In addition, the synchronisation spring of also not worrying the carrying out butt unfavorable condition such as deform.
And, for the label in above-mentioned bracket, the label of the structural element of mode of execution described later is illustrated as an example of the present invention.
Synchronizer according to speed changer of the present invention, in the synchronizer of the structure that the ground, a part of dental inlay space of teeth in the dental inlay tooth of lock ring is removed, the processing of parts is simple, can effectively limit with cheap structure being pushed by synchronous connection sleeve and the action of mobile synchronisation spring vertically, and the unfavorable condition such as can prevent that synchronisation spring from deforming.
Description of drawings
Fig. 1 is the sectional view of synchronizer that the speed changer of an embodiment of the invention is shown.
Fig. 2 is the sectional view of observing along the X-X arrow of Fig. 1.
Fig. 3 is the figure that lock ring is shown, and is (a) side view from end on observation, is (b) the local amplification stereogram of the Y part of (a).
Fig. 4 be for the explanation synchronisation spring with respect to the figure of the configuration of lock ring, (a) be the local amplification view that the part of lock ring and synchronisation spring is shown, be (b) figure that the section of observing along the Z-Z arrow of (a) is shown.
(a)～(c) of Fig. 5 is the figure for the synchronization motion of explanation synchronizer.
Label declaration
1: synchronizer; 2: running shaft; 3: needle bearing; 5: synchronous hub; 6: spline tooth; 10: synchronous connection sleeve; 11: spline tooth; 11a: protuberance; 12: tooth (tooth is pushed in engagement aside) in advance; 14: retreat tooth (synchronous gear); 14a: chamfer surface; 20: speed change gear; 25: clutch gear; 26: the dental inlay spline; 27: boss part; 28: conical surface; 30: lock ring; 33: the dental inlay tooth; 34: tooth root section; 34a: end face; 35: crown section; 35a: chamfer surface; 36: toothless portion); 38: conical surface; 39: seat section; 39a: end face; 40: synchronisation spring; 40a: inner circumference edge.
Embodiment
Below, with reference to accompanying drawing, embodiments of the present invention are at length described.Fig. 1 is the sectional view of synchronizer 1 that the speed changer of an embodiment of the invention is shown, and Fig. 2 is the sectional view of observing along the X-X arrow of Fig. 1.In addition, Fig. 3 is the figure that lock ring 30 described later is shown, and is (a) side view from end on observation, is (b) the local amplification stereogram of the Y part of (a).Synchronizer shown in Figure 11 is the part of the synchronizer of the gear that can set N speed shelves and N+1 speed shelves, such as for can set advance 6 speed with retreat many grades of gears, the preferred synchronizer that be equipped on for motor vehicle manual transmission such as 1 speed.And synchronizer 1 left and right symmetrically shown in Figure 1 possesses the lazy-tongs of N speed use of same structure in fact and the lazy-tongs of N+1 speed use, but herein, only the lazy-tongs (lazy-tongs of N speed use) on right side is illustrated.
The synchronizer 1 of present embodiment possesses: synchronous hub 5, and its spline is embedded in running shaft 2; Synchronous connection sleeve 10, its vertically sliding freely spline be incorporated into the periphery of synchronous hub 5; And speed change gear 20, it arranges the sidepiece with respect to synchronous hub 5 and synchronous connection sleeve 10 in the axial direction.Speed change gear 20 is supported on running shaft 2 in the mode that can rotate freely via needle bearing 3.Speed change gear 20 by synchronous hub 5 sides, spline is chimeric clutch gear 25, this clutch gear 25 is formed with dental inlay spline 26 in periphery.By the slip of not shown reverse shift fork, synchronous connection sleeve 10 moves left and right vertically from neutral position shown in Figure 1.And N speed gear is established in the movement of the N speed position by to the right.
Outer circumferential face at synchronous hub 5 is formed with spline tooth 6, is formed with spline tooth 11 with spline tooth 6 engagements of synchronous hub 5 at the inner peripheral surface of synchronous connection sleeve 10.As shown in Figure 2, the spline tooth 11 of synchronous connection sleeve 10 is pushed tooth (below, be called " tooth in advance ") 12 and a plurality of synchronous gear (below, be called " retreating tooth ") 14 aside by a plurality of engagements and is consisted of.It is more side-prominent to speed change gear 20 than retreating tooth 14 that tooth 12 is arranged to its terminal part (by the end of speed change gear 20 sides) in advance.In addition, at tooth in advance 12 with retreat tooth 14 terminal part separately, be formed with the chamfer surface 12a, the 14a that become the tip shape to form this terminal part chamfer machining.These are tooth 12 and retreat tooth 14 and equally spaced form along the circumferencial direction of synchronous connection sleeve 10 respectively in advance.In addition, tooth 12 and retreat tooth 14 and be arranged to respectively with a plurality of as a group in advance.And, tooth in advance that synchronous connection sleeve 10 possesses 12 and retreat tooth 14 number and arrangement mode separately and can be number and arrangement arbitrarily.
As shown in Figure 1, be formed with conical surface 28 in the periphery of the boss part 27 of extending to synchronous hub 5 sides of clutch gear 25, this conical surface 28 is by consisting of with respect to the plane of inclination that axially is coniform inclination.Lock ring (synchronizer ring) 30 arranged the outside diameter of conical surface 28 is chimeric.Lock ring 30 is the parts of circular ring-type with predetermined width, and side face is formed with conical surface 38 within it, and this conical surface 38 is made of the cone shape plane of inclination with conical surface 28 sliding contacts of boss part 27.In addition, as shown in Figure 3, lock ring 30 possesses engagement portion 31, the kick that this engagement portion 31 is formed by the equally spaced a plurality of positions on the outer circumferential face of lock ring 30 (being 3 positions in the drawings) consists of, make this engagement portion 31 with respect to the receiving portion that is consisted of by the recess of being located at synchronous hub 5 (not shown) with along engaging under the state that circumferentially has fine clearance.Thus, lock ring 30 is with respect to synchronous hub 5 and amount relative rotate of synchronous connection sleeve 10 with the half tooth distance of dental inlay tooth 33 described later.
Outer circumferential face at lock ring 30 is formed with to the outstanding a plurality of dental inlay teeth 33 of radial outside.A plurality of dental inlay teeth 33 axial (by speed change gear 20 sides) end on the outer circumferential face of lock ring 30 is along circumferentially equally spaced arranging.
And, being provided with toothless portion) 36 at the lock ring 30 of present embodiment, this toothless portion) 36 is to remove the part that forms along the ground, a part of dental inlay space of teeth in a plurality of dental inlay teeth 33 of circumferentially equally spaced arranging.In the structure example shown in (a) of Fig. 3, in 39 dental inlay teeth 33 of the outer circumferential face that should be arranged in lock ring 30,8 dental inlay teeth 33 have been removed in the compartment of terrain respectively at the toothless portion) 36 at equally spaced 3 positions.Therefore, lock ring 30 only has and is arranged with respectively 5 in 3 circumferential positions and amounts to 15 dental inlay teeth 33.And the position corresponding with each dental inlay tooth 33 in toothless portion) 36 (should arrange each position of equally spaced dental inlay tooth 33) is formed with the seat section 39 of overshooting shape.
As shown in Fig. 3 (b), dental inlay tooth 33 has: tooth root section 34, and its projection by the roughly quadrangular shape that the outer circumferential face at lock ring 30 forms consists of; With crown section 35, it is integrally formed in the upper end portion (end of outside diameter) of this tooth root section 34.Tooth root section 34 is made of the kick of essentially rectangular shape, and its end face 34a by synchronous connection sleeve 10 sides (that is, synchronisation spring 40 sides described later) forms plane.In addition, crown section 35 is tapered towards upper end side (radial outside), and its end face (side) by synchronous connection sleeve 10 sides becomes chamfer surface 35a, this chamfer surface 35a chamfering and form the tip shape.On the other hand, the seat section 39 that is located at toothless portion) 36 is the shape identical with the tooth root section 34 of dental inlay tooth 33.Therefore, 39 kicks by the essentially rectangular shape of seat section consist of, and its end face 39a by synchronous connection sleeve 10 sides becomes plane.This one 39 is equivalent to as the nubbin after crown section 35 excisions of the part of dental inlay tooth 33.
In addition, as shown in Figure 1, be provided with the synchronisation spring 40 of ring-type in the periphery of lock ring 30.Synchronisation spring 40 is for the wireform of elastic metallic system being become the parts of circular ring-type, and in the periphery of lock ring 30, synchronisation spring 40 is adjacent to arrange with synchronous hub 5 and synchronous connection sleeve 10 sides with respect to dental inlay tooth 33 in the axial direction.When synchronous connection sleeve 10 was positioned at the neutral position, this synchronisation spring 40 was positioned at the position that is surrounded by the terminal part of the spline tooth 11 of the axial end of the dental inlay tooth 33 of lock ring 30, synchronous hub 5, synchronous connection sleeve 10 (by the end of speed change gear 20 sides).And then when synchronous connection sleeve 10 during to speed change gear 20 Slideslip, this synchronisation spring 40 is extruded towards dental inlay tooth 33 sides and to center axis (the right tiltedly downside of figure) thus by the protuberance 11a pushing that the lower end at the terminal part of spline tooth 11 arranges.
Fig. 4 is for the figure of explanation synchronisation spring 40 with respect to the configuration relation of lock ring 30, (a) be local amplification view from the part of end on observation lock ring 30 and synchronisation spring 40, (b) being the figure that the section of observing along the Z-Z arrow of (a) is shown, is the outer circumferential side of lock ring 30 and the sectional view of synchronisation spring 40.And, in (a) of Fig. 4, be represented by dotted lines synchronisation spring 40.In addition, in (b) of Fig. 4, record and narrate part corresponding to crown toothless portion) 36 and dental inlay tooth 33 section 35 with imaginary line.As shown in the drawing, the interior Zhou Jing of synchronisation spring 40 forms the large size in periphery footpath than lock ring 30.And upper-end surface (end face of the outside diameter) 39b of seat section 39 that is formed at lock ring 30 is more side-prominent to external diameter than the inner circumference edge 40a of synchronisation spring 40.Thus, synchronisation spring 40 by the end face of speed change gear 20 sides, comprise the position corresponding with toothless portion) 36 whole circumferentially and the end face 39a of the end face 33a of dental inlay tooth 33 and seat section 39 opposed.Therefore, synchronisation spring 40 constitutes, and its integral body can not crossed the arrangement position of dental inlay tooth 33 and be flown out to speed change gear 20 sides (right side of Fig. 4 (b)).
Next, the synchronization motion of the synchronizer 1 of said structure described.Fig. 5 is the figure for the explanation synchronization motion, is illustrate and observe the figure of corresponding part along the X-X arrow of Fig. 1.When making synchronous connection sleeve 10 to speed change gear 20 side shiftings (slip) by the gear-change operation to shift level (not shown), the protuberance 11a(of the spline tooth 11 of synchronous connection sleeve 10 is with reference to Fig. 1) synchronisation spring 40 is pressed to radially inner side and axial speed change gear 20 thrusters.Thus, via synchronisation spring 40, lock ring 30 is pressed to clutch gear 25 thrusters.
At this moment, by the pushing of the spline tooth 11 of synchronous connection sleeve 10 and mobile synchronisation spring 40 and dental inlay tooth 33(tooth root section 34) end face 34a and the end face 39a butt of seat section 39 and being blocked.Therefore, such as described, the whole arrangement position that circumferentially can not cross dental inlay tooth 33 of synchronisation spring 40 flies out to speed change gear 20 sides.And, at this moment, the spline tooth 11(of synchronous connection sleeve 10 in advance tooth 12 and retreat tooth 14) be positioned at the position shown in (a) of Fig. 5.
When synchronous connection sleeve 10 was moved further to speed change gear 20 sides, as shown in Fig. 5 (b), the chamfer surface 14a that retreats tooth 14 of synchronous connection sleeve 10 contacted with the chamfer surface 35a of the dental inlay tooth 33 of lock ring 30, and beginning is by retreating pushing aside of 14 pairs of dental inlay teeth 33 of tooth.Meanwhile, the conical surface 38 of lock ring 30 shown in Figure 1 and conical surface 28 butts of clutch gear 25 produce friction torque between them, thereby make clutch gear 25 beginning synchronous rotaries.
When synchronous connection sleeve 10 is moved further, the chamfer surface 14a that retreats tooth 14 on one side with the chamfer surface 35a sliding contact of dental inlay tooth 33, push dental inlay tooth 33 aside on one side and advance, and then as shown in the dotted line in Fig. 5 (b), the chamfer surface 14a that retreats tooth 14 is disengaged with the contacting of chamfer surface 35a of dental inlay tooth 33, has completed pushing aside lock ring 30.Thus, the friction torque between the conical surface 38 of lock ring 30 and the conical surface 28 of clutch gear 25 disappears, and lock ring 30 finishes with the synchronization motion of clutch gear 25.
If after making as described above synchronous connection sleeve 10 and clutch gear 25 is synchronizeed, synchronous connection sleeve 10 is moved, the tooth in advance 12 of synchronous connection sleeve 10 first contacts with the dental inlay spline 26 of clutch gear 25 than retreating tooth 14.If synchronous connection sleeve 10 is moved further, as shown in Fig. 5 (c), tooth 12 and to retreat tooth 14 together engaging-in and be sticked in dental inlay spline 26 in advance.Thus, completed the combination of synchronous connection sleeve 10 with speed change gear 20.
As described above, in the synchronizer 1 of the speed changer of present embodiment, periphery at lock ring 30 is provided with toothless portion) 36, this toothless portion) 36 is to remove the part that form along the ground, a part of dental inlay space of teeth in a plurality of dental inlay teeth 33 of circumferentially equally spaced arranging, is formed with the seat section 39 to the side-prominent overshooting shape of external diameter than the inner circumference edge 40a of synchronisation spring 40 at this toothless portion) 36.According to this structure, can utilize a section 39 to stop the synchronisation spring 40 that is moved vertically by spline tooth 11 pushings of synchronous connection sleeve 10.Therefore, will be in advance tooth 12 and retreat the synchronizer 1 of structure of spline tooth 11 that tooth 14 is arranged at synchronous connection sleeve 10, remove the dental inlay tooth 33 of lock ring 30 by the compartment of terrain, can in the action smoothly of guaranteeing synchronous connection sleeve 10, prevent that the synchronisation spring 40 of the position corresponding with toothless portion) 36 from crossing the arrangement position of dental inlay tooth 33 and flying out to speed change gear 20 sides.Therefore, can prevent the unfavorable conditions such as synchronisation spring 40 deforms, thereby can avoid breaking down in synchronization motion.
In addition, in above-mentioned synchronizer 1, the nubbin of seat section 39 after for the part removal of each dental inlay tooth 33 that will remove in toothless portion) 36 with being spaced apart.According to this structure, the part excision of the dental inlay tooth 33 by in a plurality of dental inlay teeth 33 that will be in advance equally spaced form along the periphery of lock ring 30, corresponding with toothless portion) 36 part, thus, can be with this nubbin formation seat section 39.Therefore, can produce the lock ring 30 with section 39 of the present invention with simple operation cheaply.In addition, when the part of dental inlay tooth 33 is removed, only just can carry out the adjustment of the outstanding size of a section 39 by regulating its removal amount, can constitute with simple operation and make synchronisation spring 40 not side-prominent to speed change gear 20.
In addition, in the synchronizer 1 of present embodiment, consisted of the dental inlay tooth 33 of lock ring 30 by above-mentioned tooth root section 34 and crown section 35, make the seat section 39 that is located at toothless portion) 36 be the shape identical with the tooth root section 34 of dental inlay tooth 33.Therefore, the periphery along lock ring 30 equally spaced forms a plurality of dental inlay teeth 33 in advance, and then, the crown section 35 of each dental inlay tooth 33 of part that will be corresponding with toothless portion) 36 removes, and can consist of a section 39 by the tooth root section 34 as its nubbin thus.Therefore, can form seat section 39 with simpler manufacturing procedure.In addition, due to the end face 39a by synchronisation spring 40 sides of identical seat section 39 of the tooth root section 34 of shape and dental inlay tooth 33 become plane, thereby therefore can stop reliably for mobile vertically synchronisation spring 40 butts.In addition, because this end face 39a becomes planely, therefore, even synchronisation spring 40 carries out butt, the unfavorable condition such as can not deform yet.
Above, embodiments of the present invention are illustrated, the present invention is not limited to above-mentioned mode of execution, carries out various distortion in the scope of the technological thought that can record and narrate in claims and specification and accompanying drawing.For example, the structure of synchronizer of the present invention also is not only the single synchronizer of boring type shown in above-mentioned mode of execution, also can be applied to the synchronizers of many cone types.
In addition, in the above-described embodiment, structure example as the seat section that arranges at toothless portion), show equally spaced the situation that forms the seat section 39 that is consisted of by rectangular-shaped projection of arranging, but the seat section that is located at toothless portion) of the present invention is except shown in above-mentioned mode of execution, for example can also constitute: although omitted detailed diagram, but by the tooth root section 34 that upwards links adjacent each one 39 and each dental inlay tooth 33 in week, a section 39 and tooth root section 34 are become in a continuous fillet of making progress in whole week of lock ring 30.
Claims (3)
1. the synchronizer of a speed changer,
The synchronizer of described speed changer possesses:
Speed change gear, it is can counterrotating mode being supported on running shaft;
Synchronous hub, it is combined with described running shaft;
Synchronous connection sleeve, it is combined with the periphery spline of described synchronous hub in the mode that can move vertically;
Spline tooth, it is formed at the interior week of described synchronous connection sleeve;
Lock ring, it is configured between described synchronous hub and described speed change gear, and can carry out friction apply with described speed change gear side;
The dental inlay spline, it is formed at described speed change gear side, and can mesh with the spline tooth of described synchronous connection sleeve;
The dental inlay tooth, it is formed at the periphery of described lock ring, and can mesh with the spline tooth of described synchronous connection sleeve; And
The synchronisation spring of ring-type, it is adjacent to arrange at the outer circumferential side of described lock ring and described dental inlay tooth, and described synchronisation spring is by by the described spline tooth pushing of described synchronous connection sleeve and can move vertically,
The synchronizer of described speed changer is characterised in that,
Periphery at described lock ring is provided with toothless portion), described toothless portion) is to remove the part that forms along the ground, a part of dental inlay space of teeth in a plurality of described dental inlay tooth of circumferentially equally spaced arranging, be formed with the seat section of overshooting shape at described toothless portion), described seat section is more side-prominent to external diameter than the inner circumference edge of described synchronisation spring.
2. the synchronizer of speed changer according to claim 1, is characterized in that,
Described seat section is the nubbin after the part of each dental inlay tooth that should equally spaced arrange in described toothless portion) is removed.
3. the synchronizer of speed changer according to claim 1 and 2, is characterized in that,
Described dental inlay tooth has:
Tooth root section, its outstanding outer circumferential face that is formed at described lock ring; With
Crown section, it is integrally formed in the upper end portion of this tooth root section,
The end face by described synchronisation spring side of described tooth root section is plane, and the end face by described synchronisation spring side of described crown section is the tip shape, and the described seat section of described toothless portion) is the shape identical with the described tooth root section of described dental inlay tooth.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011261811A JP5506766B2 (en) | 2011-11-30 | 2011-11-30 | Gearbox synchronizer |
| JP2011-261811 | 2011-11-30 |
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| Publication Number | Publication Date |
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| CN103133554A true CN103133554A (en) | 2013-06-05 |
| CN103133554B CN103133554B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210380583.6A Active CN103133554B (en) | 2011-11-30 | 2012-10-09 | The synchronizer of speed changer |
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| JP (1) | JP5506766B2 (en) |
| CN (1) | CN103133554B (en) |
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| CN105697577A (en) * | 2014-12-11 | 2016-06-22 | 本田技研工业株式会社 | Synchronizer and transmission |
| CN110475983A (en) * | 2017-03-29 | 2019-11-19 | 武藏精密工业株式会社 | Engaged clutch mechanism |
| CN112303142A (en) * | 2020-10-29 | 2021-02-02 | 燕山大学 | Pressure-controllable friction ring type synchronizer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6224556B2 (en) * | 2014-09-04 | 2017-11-01 | 本田技研工業株式会社 | Transmission synchronizer |
| CN106907469B (en) * | 2017-03-02 | 2019-06-11 | 宁波兴伟刀具科技有限公司 | It is a kind of for the mechanical anti-jamming transmission device just dismantled |
| CN107477105A (en) * | 2017-08-28 | 2017-12-15 | 陕西法士特汽车传动集团有限责任公司 | A kind of synchronizer locking structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105697577A (en) * | 2014-12-11 | 2016-06-22 | 本田技研工业株式会社 | Synchronizer and transmission |
| CN105697577B (en) * | 2014-12-11 | 2018-03-16 | 本田技研工业株式会社 | Sychronisation and speed changer |
| CN110475983A (en) * | 2017-03-29 | 2019-11-19 | 武藏精密工业株式会社 | Engaged clutch mechanism |
| US10920834B2 (en) | 2017-03-29 | 2021-02-16 | Musashi Seimitsu Industry Co., Ltd. | Engagement-type clutch mechanism |
| CN112303142A (en) * | 2020-10-29 | 2021-02-02 | 燕山大学 | Pressure-controllable friction ring type synchronizer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103133554B (en) | 2016-01-20 |
| JP2013113404A (en) | 2013-06-10 |
| JP5506766B2 (en) | 2014-05-28 |
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