CN201973211U - Self power-enhanced synchronizer - Google Patents
Self power-enhanced synchronizer Download PDFInfo
- Publication number
- CN201973211U CN201973211U CN2011200102971U CN201120010297U CN201973211U CN 201973211 U CN201973211 U CN 201973211U CN 2011200102971 U CN2011200102971 U CN 2011200102971U CN 201120010297 U CN201120010297 U CN 201120010297U CN 201973211 U CN201973211 U CN 201973211U
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- slide block
- synchronizer
- sliding block
- shaped
- toothholder
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Abstract
The utility model relates to a self power-enhanced synchronizer which is formed by a tooth holder, a tooth sleeve, a conical ring, a cone body, a sliding block and a spring; innovations of the self power-enhanced synchronizer are as follows: the sliding block is H-shaped, sharp points are symmetrically manufactured at both sides of the H-shaped sliding block, axial grooves are symmetrically manufactured at the middle part of the H-shaped sliding block; chamfering lock surfaces which are coincided with the sharp points manufactured on the H-shaped sliding block are manufactured on the two side surfaces of a groove which is manufactured on the tooth holder; and convex keys are uniformly distributed on the conical ring and can be embedded in the axial grooves on the H-shaped sliding block. The self power-enhanced synchronizer can realize effective power enhancement through the innovative design of the H-shaped sliding block, has prominent advantages of small volume, compact structure, easy manufacturing and production and good using effect, reduces the manufacturing cost of a synchronizer assembly while meeting the requirements of the transmission gear on the volume, is an ideal substitute goods of a common clamping ring type synchronizer and has wide development prospect.
Description
Technical field
The utility model relates to the synchronizer of automotive trannsmission system, particularly a kind of self energizing effort synchronizer.
Background technique
Follow the development of Chinese Automobile Industry ', both at home and abroad the gearbox design level is more and more higher, and development speed is very fast, and as the part of core in the gearbox, and the height of synchronizer overall performance directly influences the overall performance of gearbox.Existing synchronizer mainly is made of toothholder, tooth cover, conical ring, cone, slide block and spring, tooth is enclosed within the effect of shift fork, drive the slide block axial motion and produce axial force, promote the conical ring motion, make conical ring and cone friction generation frictional force make conical ring and cone synchronous.After reaching synchronously, the tooth cover is crossed the outer cone ring gear, combines with cone and finishes gear shift.
The many data of the working principle of synchronizer all have introduction, and concrete calculation of parameter is as follows: Tc=F* μ * Rc/sina, wherein, Tc-----conical surface moment of torsion, F------berth-changing strength, a-----friction pair face angle, the friction factor of the μ----between-conical surface, the mean radius of Rc------cone of friction.As from the foregoing, under the effect of certain berth-changing strength F, the positive pressure that passes to each cone of friction is identical, and therefore, cone of friction is many more, and friction is made a concerted effort big more, certainly will need to increase the effect that one or more conical surfaces are realized the short time gear shift.For this reason, existing synchronizer develops into double taper synchronizer by original single conical surface synchronizer, promptly adopts the conical ring with bipyramid face, and two cones are installed in cooperation, with the increase cone of friction, thereby improve the whole handling of speed changer, improve driving comfortability, gear shift flexibility.
But the deficiency of bringing thus then is a complex structure, manufacturing difficulty is big, cost high.Therefore, need research and development a kind of when satisfying the gearbox capacity requirement, can reduce the novel synchronous device of the manufacture cost of synchronizer assembly.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of simple in structure, be easy to manufacture, cost is low, using effect is good self energizing effort synchronizer.
The utility model solves its technical problem and is achieved through the following technical solutions:
A kind of self energizing effort synchronizer, mainly by toothholder, the tooth cover, conical ring, cone, slide block and spring constitute, at toothholder outer, coaxial mounting teeth cover, in coaxial installation conical ring of toothholder one side and cone, slide block is inlaid in the uniform made groove of toothholder periphery and can endwisely slips, the slide block outer surface is shaped on the projection with tooth cover setting-in, mounting spring between slide block internal surface and the toothholder, it is characterized in that: described slide block is a H shape slide block, bilateral symmetry at this H shape slide block is shaped on cusp, middle part symmetry at H shape slide block is shaped on axial groove, be shaped on the chamfering locking face that matches with the made cusp of H shape slide block in the bi-side of the made groove of toothholder, uniformly on conical ring be shaped on protruding key, this protruding key can be flush-mounted on the H shape slide block in the made axial groove.
Advantage of the present utility model and beneficial effect are:
1. this self energizing effort synchronizer originally under the effect of berth-changing strength, can be realized the increase of berth-changing strength by the self energizing effort of H shape slide block, thereby increase conical surface positive pressure, friction torque is increased, realize the reinforcement of synchronizing process, the tooth cover can successfully mesh with the tooth that combines of conical ring, thereby finishes moment synchronized shifting.
2. the utility model is realized effective reinforcement by the H shape slide block of innovative design, the outstanding advantage that have compact structure, be easy to manufacture, using effect is good, axial length is little, when satisfying the gearbox capacity requirement, reduce the manufacture cost of synchronizer assembly, be the ideal substitute of common lock ring type synchronizer, have vast potential for future development.
Description of drawings
Fig. 1 is structural representation of the present utility model (sectional view);
Fig. 2 is structural representation of the present utility model (not containing tooth cover parts).
Embodiment
The utility model is described in further detail below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
A kind of self energizing effort synchronizer mainly is made of toothholder 6, tooth cover 3, conical ring 2, cone 1, slide block 4 and spring 5.At toothholder outer, coaxial mounting teeth cover, in coaxial installation conical ring of toothholder one side and cone, slide block is inlaid in uniform made three grooves of toothholder periphery and can endwisely slips, and the slide block outer surface is shaped on the projection 11 with tooth cover setting-in, mounting spring between slide block internal surface and the toothholder.Its innovation part is: described slide block is a H shape slide block, is shaped on cusp 10 in the bilateral symmetry of this H shape slide block, is shaped on axial groove 7 in the middle part symmetry of H shape slide block.Be shaped on the chamfering locking face 9 that the made cusp of H shape slide block matches in the bi-side of the made groove of toothholder, uniformly on conical ring be shaped on protruding key 8, this protruding key can be flush-mounted on the H shape slide block in the made axial groove.
The working principle of this self energizing effort synchronizer is:
One end of tooth cover is connected with the shift fork of gearbox, and the other end of tooth cover acts on the H shape slide block, and spring in the other end effect of H shape slide block, guarantees during neutral gear that tooth cover position stability is accurate, the motion noise in the time of can effectively reducing neutral gear.Tooth is enclosed within the effect of shift fork, drives the axial motion of H shape slide block and produces axial force F 1, promotes the conical ring motion, and the conical ring motion makes conical ring, cone compress the formation friction pair, and conical ring and cone are rotated synchronously.In the conical ring rotation simultaneously, the protruding key of conical ring promotes the rotation of H shape slide block, at this moment, the cusp of H shape slide block contacts with the chamfering locking face of toothholder, H shape slide block is bearing axial pushing force F2 thus, and with this thrust in conical ring, so on the conical surface of conical ring, cone, will produce the active force of synchronous twice, thereby conical surface torque T c doubles, and increases the friction torque in the synchronizing process thus.Can effectively reduce berth-changing strength and reduce lock in time, and make gearshift procedure steady, net synchronization capability improves greatly.After reaching synchronously, the tooth cover is crossed the outer cone ring gear, combines with cone and finishes gear shift, and the tooth cover relies on tooth portion back taper to realize mutual locking with cone, in case the anti-avulsion shelves.
This self energizing effort synchronizer is on the basis that does not change original length of installation, and friction torque can reach the nearly twice of former single conical surface synchronizer, is equal to common twin cone lock ring synchronizer, can directly replace former traditional lock ring type double-cone synchronizer.This self-boosting type synchronizer and common double-cone synchronizer are compared and can be reduced 30% on the cost.
Claims (1)
1. self energizing effort synchronizer, mainly by toothholder, the tooth cover, conical ring, cone, slide block and spring constitute, at toothholder outer, coaxial mounting teeth cover, in coaxial installation conical ring of toothholder one side and cone, slide block is inlaid in the uniform made groove of toothholder periphery and can endwisely slips, the slide block outer surface is shaped on the projection with tooth cover setting-in, mounting spring between slide block internal surface and the toothholder, it is characterized in that: described slide block is a H shape slide block, bilateral symmetry at this H shape slide block is shaped on cusp, middle part symmetry at H shape slide block is shaped on axial groove, be shaped on the chamfering locking face that matches with the made cusp of H shape slide block in the bi-side of the made groove of toothholder, uniformly on conical ring be shaped on protruding key, this protruding key can be flush-mounted on the H shape slide block in the made axial groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200102971U CN201973211U (en) | 2011-01-14 | 2011-01-14 | Self power-enhanced synchronizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200102971U CN201973211U (en) | 2011-01-14 | 2011-01-14 | Self power-enhanced synchronizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201973211U true CN201973211U (en) | 2011-09-14 |
Family
ID=44578314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200102971U Expired - Fee Related CN201973211U (en) | 2011-01-14 | 2011-01-14 | Self power-enhanced synchronizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201973211U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562849A (en) * | 2012-02-29 | 2012-07-11 | 长城汽车股份有限公司 | Synchronizer and slider thereof |
-
2011
- 2011-01-14 CN CN2011200102971U patent/CN201973211U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562849A (en) * | 2012-02-29 | 2012-07-11 | 长城汽车股份有限公司 | Synchronizer and slider thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20150114 |
|
| EXPY | Termination of patent right or utility model |