CN105003567A - Clamping-stagnation preventing synchronizer - Google Patents
Clamping-stagnation preventing synchronizer Download PDFInfo
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- CN105003567A CN105003567A CN201510470680.8A CN201510470680A CN105003567A CN 105003567 A CN105003567 A CN 105003567A CN 201510470680 A CN201510470680 A CN 201510470680A CN 105003567 A CN105003567 A CN 105003567A
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- tooth
- internal spline
- lock ring
- combined cover
- teeth
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Abstract
The invention provides a clamping-stagnation preventing synchronizer which comprises combining sleeves, a gear hub and synchronous locking rings. Internal splines of the combining sleeves are matched with external splines of the gear hub. The synchronous locking rings are assembled on the gear hub in a clearance fit mode through sliding blocks. Locking ring teeth capable of being matched with the internal splines of the combining sleeves are arranged on the outer edges of the synchronous locking rings along the circumference. Internal spline teeth of the combining sleeves comprise full-chamfered teeth and semi-chamfered teeth. The ends of the two sides, connected with tooth grooves of the internal splines, of the full-chamfered teeth are both provided with chamfered structures. The ends of one of the two sides, connected with the tooth grooves of the internal splines, of the semi-chamfered teeth are provided with chamfered structures, and the other sides are of straight tooth structures. The side portions of the internal spline teeth located on the two sides of one tooth groove of each internal spline are both provided with chamfered structures or are both of the straight tooth structures. According to the clamping-stagnation preventing synchronizer, the tooth grooves of the internal splines and the side portions of the matched internal spline teeth on the two sides of the tooth grooves are all of the straight tooth structures, and therefore it can be guaranteed that the clamping stagnation phenomenon of the locking ring teeth, combined with the tooth grooves of the internal splines, of the synchronous locking rings cannot happen, the occurrence frequency of clamping stagnation is reduced, and it is guaranteed that gear shifting is smoothly carried out.
Description
Technical field
The invention belongs to automotive transmission field, relate to the synchronizer structure in speed changer, particularly relate to a kind of anti-clamping stagnation synchronizer.
Background technique
Existing synchronizer combined cover internal spline is one week teeth, and as shown in Figure 1, the both side ends of a teeth is equipped with chamfering structure, chamfering structure comprises reversed cone angle and back taper dihedral, reversed cone angle can play locking effect, prevent synchronous before, synchronous lock ring engages with combined cover; Back taper dihedral can play leading role, and synchronous lock ring is engaged smoothly with combined cover.
Although this structure is widely used, but also there is certain deficiency in it: synchrolock annular conical surface with in conjunction with the gear ring conical surface after rubbing and reaching synchronization, drive combined cover to move axially through shift fork to shift gears, when synchrolock ring lock ring tooth is meshed with combined cover internal spline, synchronous lock ring need reverse an angle relative to combined cover, remove reversed cone angle lockup state, synchrolock ring lock ring tooth stretches in the process of combined cover internal spline teeth groove, due to factors such as synchronous lock ring and the skews of combined cover position, often occur that lock ring tooth clamping stagnation is in back taper dihedral place, cause gearshift difficulty, the problem even can not shifted gears, back taper dihedral does not only play leading role, bring negative influence on the contrary.
Summary of the invention
For above-mentioned defect, the present invention aims to provide a kind of anti-clamping stagnation synchronizer, to eliminate the catching phenomenon in existing synchronizer shift process.
Technological scheme of the present invention is achieved in that
Described anti-clamping stagnation synchronizer, comprise combined cover, tooth hub and synchronous lock ring, combined cover internal spline matches with tooth hub external splines, synchronous lock ring is assemblied on tooth hub by space of slider cooperation, synchronous lock ring outer rim circumferentially has the lock ring tooth that can match with combined cover internal spline, combined cover inner spline gear comprises full chamfered teeth and half chamfered teeth, the both side ends that full chamfered teeth is connected with internal spline teeth groove is equipped with chamfering structure, a side end in the both sides that half chamfered teeth is connected with internal spline teeth groove is equipped with chamfering structure, and opposite side is straight tooth structure; Be positioned at the inner spline gear sidepiece of internal spline teeth groove both sides, be equipped with chamfering structure or be straight tooth structure.
Further, the inner spline gear sidepiece straight tooth structure that described internal spline teeth groove and both sides thereof are mated forms a pilot unit, and combined cover internal spline is provided with several pilot units.
Correspondingly, described synchrolock ring lock ring tooth comprises the locating tooth matched with the internal spline teeth groove in combined cover pilot unit, and the locating tooth facewidth is equal with internal spline teeth groove groove width.
Further, all the other the lock ring tooth facewidth in described synchronous lock ring are less than the internal spline teeth groove groove width in combined cover.
Further, described pilot unit is evenly arranged along combined cover inside circumference face.
Preferably, described pilot unit has three.
Specifically, described chamfering structure comprises reversed cone angle and back taper dihedral, and the two is smoothly connected and is arranged at inner spline gear side end, and reversed cone angle is positioned at outside back taper dihedral.
Further, described reversed cone angle height is greater than the height of back taper dihedral.
Anti-clamping stagnation synchronizer of the present invention, existing synchronizer combined cover internal spline is improved: existing internal spline is teeth in one week, this anti-clamping stagnation synchronizer combined cover inner spline gear comprises full chamfered teeth and half chamfered teeth, full chamfered teeth is the teeth in existing internal spline, its both side ends is equipped with chamfering structure, half chamfered teeth only has a side end to be provided with chamfering structure, opposite side is straight tooth structure, namely chamfering structure is not established, keep normal straight-tooth form, the inner spline gear sidepiece straight tooth structure that internal spline teeth groove and both sides thereof are mated, can ensure that the synchrolock ring lock ring tooth combined with this internal spline teeth groove can not produce catching phenomenon, reduce the generation of clamping stagnation in quantity, ensure carrying out smoothly of gearshift, in addition, the locating tooth matched with above-mentioned internal spline teeth groove is included in synchrolock ring lock ring tooth, its facewidth is equal with internal spline teeth groove groove width, during gearshift, locating tooth can play positioning action with engaging of internal spline teeth groove, eliminate the skew of synchronous lock ring and combined cover position, make all the other lock ring teeth also can not clamping stagnation in back taper dihedral place, solve further gearshift difficulty problem.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is combined cover internal spline structure schematic diagram in existing synchronizer;
Fig. 2 is anti-clamping stagnation synchronizer gearshift pre-structure schematic diagram of the present invention;
Fig. 3 is in anti-clamping stagnation synchronizer shift process of the present invention, the structural representation after combined cover is meshed with synchronous lock ring;
Fig. 4 is that anti-clamping stagnation synchronizer of the present invention has been shifted gears, combined cover be meshed in conjunction with gear ring after structural representation;
Fig. 5 be combined cover internal spline in Fig. 2, synchrolock loop mapping tooth, in conjunction with gear ring gear ring tooth position relationship schematic diagram;
Fig. 6 be combined cover internal spline in Fig. 3, synchrolock loop mapping tooth, in conjunction with gear ring gear ring tooth position relationship schematic diagram.
Description of reference numerals:
In figure: 1. combined cover, 2. tooth hub, 3. synchronous lock ring, 4. in conjunction with gear ring, 5. power shift gear, 11. full chamfered teeths, 12. half chamfered teeths, 13. reversed cone angles, 14. back taper dihedrals, 15. internal spline teeth groove, 31. locating tooths, 41. gear ring teeth.
Embodiment
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Anti-clamping stagnation synchronizer of the present invention, as shown in Figures 2 to 4, comprise combined cover 1, tooth hub 2, synchronous lock ring 3 and in conjunction with gear ring 4, combined cover 1 internal spline matches with tooth hub 2 external splines, synchronous lock ring 3 is assemblied on tooth hub 2 by space of slider cooperation, synchronous lock ring 3 outer rim circumferentially has the lock ring tooth that can match with combined cover 1 internal spline, as Fig. 5, shown in 6, combined cover 1 inner spline gear comprises full chamfered teeth 11 and half chamfered teeth 12, the both side ends that full chamfered teeth 11 is connected with internal spline teeth groove 15 is equipped with chamfering structure, a side end in the both sides that half chamfered teeth 12 is connected with internal spline teeth groove 15 is equipped with chamfering structure, opposite side is straight tooth structure, namely chamfered is not carried out in this side, keep normal straight-tooth form, be positioned at the inner spline gear sidepiece of internal spline teeth groove 15 both sides, be equipped with chamfering structure or be straight tooth structure, wherein, what can play the generation of minimizing catching phenomenon is the inner spline gear sidepiece straight tooth structure that internal spline teeth groove 15 and both sides thereof are mated, it can reduce the generation of clamping stagnation in quantity, ensures carrying out smoothly of gearshift.
Specifically, described chamfering structure comprises reversed cone angle 13 and back taper dihedral 14, and the two is smoothly connected and is arranged at inner spline gear side end, and reversed cone angle 13 is positioned at outside back taper dihedral 14.
Further, described reversed cone angle 13 is highly greater than the height of back taper dihedral 14.
It should be noted that, the lock ring tooth of synchronous lock ring 3 is full chamfered teeth 11, synchronous lock ring 3 with when not reaching synchronization in conjunction with gear ring 4, lock ring tooth reversed cone angle 13 and the inconsistent locking of combined cover 1 inner spline gear reversed cone angle 13 of synchronous lock ring 3, synchronous lock ring 3 can not engage each other with combined cover 1; Synchronous lock ring 3 conical surface with in conjunction with gear ring 4 conical surface after rubbing and reaching synchronization, drive combined cover 1 to move axially through shift fork to shift gears, synchronous lock ring 3 need reverse an angle relative to combined cover 1, remove the lockup state of reversed cone angle, the internal spline teeth groove 15 that synchronous lock ring 3 lock ring tooth stretches into combined cover 1 completes engaging of synchronous lock ring 3 and combined cover 1; Shift fork continues to drive combined cover 1 to move axially, the internal spline teeth groove 15 making the gear ring tooth 41 in conjunction with gear ring 4 stretch into combined cover 1 completes engaging in conjunction with gear ring 4 and combined cover 1, complete shift process, moment of rotation just can pass through synchronizer by the power shift gear 5 be connected with in conjunction with gear ring 4, until wheel.
Further, the inner spline gear sidepiece straight tooth structure that described internal spline teeth groove 15 and both sides thereof are mated forms a pilot unit, and combined cover 1 internal spline is provided with several pilot units.
Correspondingly, described synchronous lock ring 3 lock ring tooth comprises the locating tooth 31 matched with the internal spline teeth groove 15 in combined cover 1 pilot unit, locating tooth 31 position is corresponding with internal spline teeth groove 15 position of combined cover 1 pilot unit, and locating tooth 31 facewidth is equal with internal spline teeth groove 15 groove width.Locating tooth 31 belongs to direct engagement with engaging of the internal spline teeth groove 15 matched, and all the other lock ring teeth are meshed with the internal spline teeth groove 15 of combined cover 1 in synchronous lock ring 3, need by just belonging to real engagement after back taper dihedral 14, therefore engaging of locating tooth 31 and the internal spline teeth groove 15 matched will be later than its engagement time, so, locating tooth 31 just can play positioning action with engaging of the internal spline teeth groove 15 matched, eliminate the skew of synchronous lock ring and combined cover position, make all the other lock ring teeth of engaging thereafter can not clamping stagnation in back taper dihedral place, solve the problem of gearshift difficulty further.
Under above-mentioned locating tooth 31 engages the prerequisite of locating with the internal spline teeth groove 15 matched, the back taper dihedral collision impact of inner spline gear on all the other lock ring teeth and combined cover 1, extend synchronous lock ring 3 working life, all the other the lock ring tooth facewidth in described synchronous lock ring 3 are less than internal spline teeth groove 15 groove width in combined cover 1.
Further, described pilot unit is evenly arranged along combined cover 1 inside circumference face, conveniently processes and forms a complete production network.
Preferably, described pilot unit has three, just can meet above-mentioned location requirement.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. an anti-clamping stagnation synchronizer, comprise combined cover (1), tooth hub (2) and synchronous lock ring (3), combined cover (1) internal spline matches with tooth hub (2) external splines, synchronous lock ring (3) is assemblied on tooth hub (2) by space of slider cooperation, synchronous lock ring (3) outer rim circumferentially has the lock ring tooth that can match with combined cover (1) internal spline, it is characterized in that: combined cover (1) inner spline gear comprises full chamfered teeth (11) and half chamfered teeth (12), the both side ends that full chamfered teeth (11) is connected with internal spline teeth groove (15) is equipped with chamfering structure, a side end in the both sides that half chamfered teeth (12) is connected with internal spline teeth groove (15) is equipped with chamfering structure, opposite side is straight tooth structure,
Be positioned at the inner spline gear sidepiece of internal spline teeth groove (15) both sides, be equipped with chamfering structure or be straight tooth structure.
2. anti-clamping stagnation synchronizer according to claim 1, it is characterized in that: the inner spline gear sidepiece straight tooth structure that described internal spline teeth groove (15) and both sides thereof are mated forms a pilot unit, and combined cover (1) internal spline is provided with several pilot units.
3. anti-clamping stagnation synchronizer according to claim 2, it is characterized in that: described synchronous lock ring (3) lock ring tooth comprises the locating tooth (31) matched with the internal spline teeth groove (15) in combined cover (1) pilot unit, and locating tooth (31) facewidth is equal with internal spline teeth groove (15) groove width.
4. anti-clamping stagnation synchronizer according to claim 3, is characterized in that: all the other the lock ring tooth facewidth in described synchronous lock ring (3) are less than internal spline teeth groove (15) groove width in combined cover (1).
5. the anti-clamping stagnation synchronizer according to claim 3 or 4, is characterized in that: described pilot unit is evenly arranged along combined cover (1) inside circumference face.
6. anti-clamping stagnation synchronizer according to claim 5, is characterized in that: described pilot unit has three.
7. anti-clamping stagnation synchronizer according to claim 1, it is characterized in that: described chamfering structure comprises reversed cone angle (13) and back taper dihedral (14), the two is smoothly connected and is arranged at inner spline gear side end, and reversed cone angle (13) is positioned at back taper dihedral (14) outside.
8. anti-clamping stagnation synchronizer according to claim 7, is characterized in that: described reversed cone angle (13) is highly greater than the height of back taper dihedral (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510470680.8A CN105003567B (en) | 2015-08-04 | 2015-08-04 | Anti- clamping stagnation synchronizer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510470680.8A CN105003567B (en) | 2015-08-04 | 2015-08-04 | Anti- clamping stagnation synchronizer |
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| CN105003567A true CN105003567A (en) | 2015-10-28 |
| CN105003567B CN105003567B (en) | 2017-07-14 |
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| CN201510470680.8A Active CN105003567B (en) | 2015-08-04 | 2015-08-04 | Anti- clamping stagnation synchronizer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351384A (en) * | 2015-12-18 | 2016-02-24 | 天津天海同步科技有限公司 | Synchronizer preventing neutral gear engagement difficulty |
| CN106812799A (en) * | 2015-11-27 | 2017-06-09 | 重庆康田齿轮有限公司 | Main transformer speed synchronizer axle sleeve |
| CN107178564A (en) * | 2016-03-11 | 2017-09-19 | 贺尔碧格传动技术控股有限公司 | Method for the sliding sleeve of the synchronizer of manual transmission and for manufacturing this sliding sleeve |
| CN109519485A (en) * | 2019-01-15 | 2019-03-26 | 重庆青山工业有限责任公司 | The synchronizer of automobile speed-changing device |
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| JPH0518423A (en) * | 1991-07-11 | 1993-01-26 | Hino Motors Ltd | Processing method for synchronizer ring |
| DE19700769A1 (en) * | 1996-11-16 | 1998-05-28 | Getrag Getriebe Zahnrad | Synchronization device for gears and method for sharpening teeth of a sintered synchronization body |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106812799A (en) * | 2015-11-27 | 2017-06-09 | 重庆康田齿轮有限公司 | Main transformer speed synchronizer axle sleeve |
| CN105351384A (en) * | 2015-12-18 | 2016-02-24 | 天津天海同步科技有限公司 | Synchronizer preventing neutral gear engagement difficulty |
| CN107178564A (en) * | 2016-03-11 | 2017-09-19 | 贺尔碧格传动技术控股有限公司 | Method for the sliding sleeve of the synchronizer of manual transmission and for manufacturing this sliding sleeve |
| CN107178564B (en) * | 2016-03-11 | 2021-04-23 | 贺尔碧格传动技术控股有限公司 | Synchronization device and method for producing a sliding sleeve for a synchronization device |
| CN109519485A (en) * | 2019-01-15 | 2019-03-26 | 重庆青山工业有限责任公司 | The synchronizer of automobile speed-changing device |
| CN109519485B (en) * | 2019-01-15 | 2024-04-05 | 重庆青山工业有限责任公司 | Synchronizer of automobile speed change device |
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| CN105003567B (en) | 2017-07-14 |
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