CN201326712Y - Short-stroke synchronizer with two conical surfaces - Google Patents
Short-stroke synchronizer with two conical surfaces Download PDFInfo
- Publication number
- CN201326712Y CN201326712Y CNU2008201433306U CN200820143330U CN201326712Y CN 201326712 Y CN201326712 Y CN 201326712Y CN U2008201433306 U CNU2008201433306 U CN U2008201433306U CN 200820143330 U CN200820143330 U CN 200820143330U CN 201326712 Y CN201326712 Y CN 201326712Y
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- Prior art keywords
- synchronizer
- ring
- tooth
- automobile
- balking
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model provides an automobile synchronizer used for an automobile transmission. One end of a toothed sleeve is connected with a shifting yoke, and the other end thereof acts on a sliding block; the other end of the sliding block acts on a spring; an inner balking ring, a dual-balking ring and an outer balking ring are positioned between a hub gear and a monoblock gear; the inner balking ring and the outer balking ring are connected with a connecting block via three end surface keys; the connecting block is positioned inside a synchronizing hub gear open slot; and the dual-balking ring of the synchronizer is connected with six waist-shaped holes via six end surface keys. Compared with the conventional lock ring synchronizer, the installation length of the automobile synchronizer provided by the utility model is shorter by 14mm, and the saved space can be used to effectively widen the width of teeth, so as to improve the carrying capacity; the capacity of the synchronizer is larger, and the gearshift force and the load-carry duty of the synchronizer is reduced by 46% and 25% respectively, compared with the conventional lock ring synchronizer; and the synchronizer makes the gearshift operation more handy, flexible and reliable, so as to maximally reduce the fatigue strength of a driver and improve the power performance and the fuel economy of a whole automobile.
Description
Technical field
The automobile synchronizer that the utility model provides a kind of automotive transmission to use belongs to the automotive trannsmission system technical field.
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-synchronizer of core in the gearbox, and the height of its overall performance directly influences the overall performance of gearbox.Demand according to automobile industry development; high-power; high pulling torque; the environmental protection characteristic of development; each speed changer manufacturer carries out the speed changer optimal design; to meet the need of market; because when carrying out the car load design; the installing space of speed changer is determined; under the situation that satisfies the car load needs; speed changer need be considered gear; the durability degree of axle; the capacity of bearing capacity and synchronizer or the like factor; common double taper synchronizer can solve the problem of synchronizer capacity; and there is narrow limitation in the speed changer overall structure, and the space of improving gear capacity is less, is not enough to improve the intensity and the bearing capacity thereof of gear.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, bias shift plunger, laborsaving, quick, the automobile gearbox that the Economy of fuel oil is high short stroke double taper synchronizer.
The purpose of this utility model is to realize like this, one end of tooth cover is connected with shift fork, the other end of tooth cover acts on the slide block, the other end of slide block acts on the spring, interior conical ring, the bipyramid ring, outer conical ring at the tooth hub with in conjunction with tooth between, in, outer conical ring is connected with contiguous block by three straight end-face keys, contiguous block is positioned at synchronous tooth hub dead slot, the tooth hub is connected with transmission output shaft by internal spline synchronously, synchronizer bipyramid ring passes through six straight end-face keys and realizes being connected in conjunction with six waist-shaped holes of tooth, is connected by a certain shifting gear external splines of internal spline and speed changer in conjunction with tooth.
The utility model is compared with existing automobile gearbox synchronizer, and length of installation shortens 14mm than traditional lock ring type synchronizer; The space of saving can be used for the facewidth increase, effectively strengthen the facewidth, improve bearing capacity; The synchronizer capacity is bigger, and gear shift is lighter, more flexible; Berth-changing strength and Rate of load condensate reduce 46% and 25% than traditional lock ring type synchronizer respectively; Make shift control lighter, flexible, reliable simultaneously, reduce driver's fatigue strength to greatest extent, improve power character, the fuel economy of car load.
Description of drawings
Fig. 1 is an overall pattern of the present utility model
Fig. 2 is the schematic representation of contiguous block and inside and outside conical ring Placement in the overall pattern of the present utility model
Embodiment
Embodiment 1, with reference to Fig. 1,2, one end of tooth cover 5 is connected with shift fork, the other end of tooth cover 5 acts on the slide block 4, the other end of slide block 4 acts on the spring 3, interior conical ring 10, bipyramid ring 11, outer conical ring 12 at tooth hub 9 with in conjunction with tooth 7 between, interior conical ring 10, outer conical ring 12 is respectively by three straight end- face keys 13,14 are connected with contiguous block 1, contiguous block 1 is positioned at tooth hub 9 dead slots, tooth hub 9 is connected with transmission output shaft by internal spline 2, bipyramid ring 11 passes through six straight end-face keys 6 and realizes being connected in conjunction with six waist-shaped holes of tooth 7, is connected with a certain shifting gear external splines of speed changer by internal spline 8 in conjunction with tooth 7.
When shifting of transmission, the berth-changing strength P that is applied acts on the tooth cover 5 by reverse shift fork, under the effect of reverse shift fork, tooth cover 5 promotes slide block 4 motions, and slide block 4 transfer function masterpieces are used on the outer conical ring 12, and outer conical ring 12 motions make outer conical ring 12, bipyramid ring 11, interior conical ring 10 compress two friction pairs of formation, active force P is just arranged on the conical surface, owing to have revolution difference between bipyramid ring 11 and inside and outside conical ring, so will produce synchronous friction torque Mf on two conical surfaces, it is worth big or small available following formula and calculates:
Mf＝Mf1+Mf2＝P/sina×μ×(d1c/2+d2c/2)
In the formula:
The synchronising torque that Mf1------is produced by the cone of friction pair between outer conical ring and the bipyramid ring.
The synchronising torque that Mf1------is produced by the cone of friction pair between interior conical ring and the bipyramid ring.
The average diameter of the synchronous cone of friction of d1c d2c------.
The friction factor of μ-----cone of friction pair.
The angle of a------cone of friction.
Under the effect of synchronous friction torque Mf, tooth cover 5 reduces rapidly with the speed discrepancy that combines tooth 7 (being shifting gear).When speed discrepancy was decreased to zero, tooth cover 5 can successfully mesh with combining tooth 7, thereby finishes moment synchronized shifting process.
Claims (1)
1, a kind of short stroke double taper synchronizer, one end of tooth cover is connected with shift fork, it is characterized in that: the other end of tooth cover acts on the slide block, the other end of slide block acts on the spring, interior conical ring, the bipyramid ring, outer conical ring at the tooth hub with in conjunction with tooth between, in, outer conical ring is connected with contiguous block by three straight end-face keys, contiguous block is positioned at synchronous tooth hub dead slot, the tooth hub is connected with transmission output shaft by internal spline synchronously, synchronizer bipyramid ring passes through six straight end-face keys and realizes being connected in conjunction with six waist-shaped holes of tooth, is connected by a certain shifting gear external splines of internal spline and speed changer in conjunction with tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201433306U CN201326712Y (en) | 2008-11-21 | 2008-11-21 | Short-stroke synchronizer with two conical surfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201433306U CN201326712Y (en) | 2008-11-21 | 2008-11-21 | Short-stroke synchronizer with two conical surfaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201326712Y true CN201326712Y (en) | 2009-10-14 |
Family
ID=41178685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201433306U Expired - Fee Related CN201326712Y (en) | 2008-11-21 | 2008-11-21 | Short-stroke synchronizer with two conical surfaces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201326712Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182766A (en) * | 2011-05-03 | 2011-09-14 | 天津天海同步科技股份有限公司 | Embedded synchronizer assembly for inner cone ring |
-
2008
- 2008-11-21 CN CNU2008201433306U patent/CN201326712Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182766A (en) * | 2011-05-03 | 2011-09-14 | 天津天海同步科技股份有限公司 | Embedded synchronizer assembly for inner cone ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091014 Termination date: 20091221 |