CN204186835U - A kind of detachable automobile speed-changer synchronizer - Google Patents
A kind of detachable automobile speed-changer synchronizer Download PDFInfo
- Publication number
- CN204186835U CN204186835U CN201420624323.3U CN201420624323U CN204186835U CN 204186835 U CN204186835 U CN 204186835U CN 201420624323 U CN201420624323 U CN 201420624323U CN 204186835 U CN204186835 U CN 204186835U
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- tooth
- conjunction
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- friction
- gear
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Abstract
A kind of detachable automobile speed-changer synchronizer, it relates to a kind of automobile synchronizer.The utility model in order to solve existing synchronizer cone of friction, in conjunction with teeth portion and shift gear for forge integrally or for rough forging machine add make after be welded on shift gear time, materials are many, weight is large, rotary inertia is large, shift quality is not good, manufacture cost is high, do not possess radiating structure, easy ablation problem.The utility model comprise shifting gear, in conjunction with tooth and friction conical ring be split-type structural, the axial extension part of rear side of shifting gear is provided with shifting gear external splines, excircle in conjunction with tooth is provided with in conjunction with tooth external splines, inner circumference in conjunction with tooth is provided with in conjunction with tooth internal spline, is provided with several jacks of circumferentially uniform array in conjunction with tooth; Friction conical ring is provided with and mates several corresponding pawls with jack, is equipped with heat radiation blind slot on the inwall of friction conical ring and on the outer wall of synchronizing ring, is provided with thermal grease bar in heat radiation blind slot.The utility model belongs to automotive transmission technical field.
Description
Technical field
The utility model relates to a kind of automobile synchronizer, is specifically related to a kind of detachable automobile speed-changer synchronizer, belongs to automotive transmission technical field.
Background technique
Synchronizer is the major part affecting shifting vehicle gearbox performance, for reduction automobile noise and oil consumption, eliminates shift shock, extends the life-span of gear and transmission system, and for realizing steadily, gearshift rapidly plays very important effect.Synchronizer primarily of the cone of friction on tooth cover, tooth hub, slide block, synchronizing ring and shift gear and in conjunction with compositions such as teeth portion, the connection that wherein tooth cover, tooth hub, synchronizing ring and transmission shaft are antitorque.During gearshift, gear shifting force is acted in synchronizing ring by tooth cover and makes synchronizing ring prolong axial compression on the cone of friction of shift gear, because transmission shaft and shift gear exist speed discrepancy, the friction torque that during contact, the synchronizing ring conical surface and shift gear cone of friction produce impels rotating speed difference to be reduced to zero, now engaging in conjunction with teeth portion of synchronizing ring and shift gear crossed by tooth cover, realize transmission shaft and the antitorque connection of shift gear, complete shift process.
In the prior art, cone of friction, in conjunction with teeth portion usually and shift gear for forge integrative-structure, or for rough forging machine add make after be welded on shift gear, there is the shortcomings such as materials are many, weight is large, rotary inertia is large, shift quality is not good, manufacture cost is high in this structure.
Model utility content
The purpose of this utility model is by forge or integrally welded in order to solve existing synchronizer cone of friction, in conjunction with teeth portion and shift gear, materials are many, weight is large, rotary inertia is large, shift quality is not good, manufacture cost is high, do not possess radiating structure, easily occur the problem of ablation situation.
The technical solution of the utility model is: a kind of detachable automobile speed-changer synchronizer, comprise gear nested successively, synchronizing ring, slide block, tooth hub and gear ring, the periphery of described synchronizing ring is provided with several boss of uniform array, the inwall of synchronizing ring is interior cone of friction, tooth hub inner circumference is provided with tooth hub internal spline, tooth hub excircle is provided with external splines, tooth hub outer peripheral surface is provided with axial slot, gear ring excircle is provided with fork slot, gear ring inner circumference is provided with gear ring internal spline, described gear comprises shift gear, in conjunction with tooth and friction conical ring, shift gear, in conjunction with tooth and friction conical ring be split-type structural, the axial extension part of rear side of shift gear is provided with shift gear external splines, excircle in conjunction with tooth is provided with in conjunction with tooth external splines, inner circumference in conjunction with tooth is provided with in conjunction with tooth internal spline, several jacks of circumferentially uniform array are provided with in conjunction with tooth, friction conical ring is provided with and mates several corresponding pawls with jack, and the outer wall of friction conical ring is the external friction conical surface, is equipped with heat radiation blind slot, is provided with thermal grease bar in described heat radiation blind slot on the inwall of described friction conical ring and on the outer wall of synchronizing ring,
Shift gear by external splines to engage with in conjunction with tooth internal spline realize with in conjunction with the antitorque connection of tooth, realize being connected with friction the antitorque of conical ring in the jack of the corresponding Intercalation tooth of pawl difference of friction conical ring, the interior cone of friction of synchronizing ring and external friction taper-face contact, the boss of synchronizing ring inserts in the slot of tooth hub, slide block puts into slot, slide block prolongs axial sides and contacts with shift gear, and tooth hub is placed in gear ring, and tooth hub external splines engages with gear ring internal spline.
Described blind slot is S shape, and the height of thermal grease bar is identical with the degree of depth of blind slot, increasing heat radiation area, improves radiating efficiency, and does not hinder the overall operation of synchronizer.
Described interior cone of friction and the external friction conical surface are provided with carbon fiber friction lamella, reduce frictional loss, increase the service life.
The top of described slide block has cavity, is provided with ball in cavity, and ball is connected by spring and cavity bottom, and the effective axis of gear ring that stops is collected together, improves the neutral stationkeeping ability of synchronizer.
The inner circumference central cross-section place of described gear ring is provided with ball-and-socket, and the upper end of described ball is placed in ball-and-socket, plays good location
And induced effect.
The number of described jack at least three, pawl is identical with the number of jack.
The number of described boss is at least three, and the number of boss is identical with the number of slide block.
The utility model compared with prior art has following effect: friction conical ring, be split type in conjunction with tooth and shift gear, be equivalent to the integrated member of complexity is decomposed into three relatively simple split components, reduce the reject ratio of final products, effectively reduce manufacture cost, alleviate weight and the rotary inertia of synchronizer, improve shift quality; Respectively there is good radiating structure, effectively solve when driver's operation did not make to occur that dry friction makes device temperature raise between cone of friction at that time, thus the problem of easily now ablation, reduce the failure rate of synchronizer, increase safety guarantee.
Accompanying drawing explanation
Fig. 1 is overall structure plan view of the present utility model;
Fig. 2 is the assembling section of Fig. 1 embodiment.
1, shift gear, 1-1, shift gear external splines, 2, in conjunction with tooth, 2-1, in conjunction with tooth internal spline, 2-2, jack, 2-3, in conjunction with tooth external splines, 3, friction conical ring, 3-1, pawl, 3-2, the external friction conical surface, 4, synchronizing ring, 4-1, boss, 4-2, interior cone of friction, 5, slide block, 5-1, cavity, 5-2, ball, 5-3, spring, 6, tooth hub, 6-1, slot, 6-2, tooth hub internal spline, 6-3, tooth hub external splines, 7, gear ring, 7-1, pull slot, 7-2, ball-and-socket, 7-3, gear ring internal spline, 8, blind slot.
Embodiment
Accompanying drawings is mode of execution specifically, a kind of detachable automobile speed-changer synchronizer of present embodiment, comprise gear nested successively, synchronizing ring 4, slide block 5, tooth hub 6 and gear ring 7, the periphery of described synchronizing ring 4 is provided with several boss 4-1 of uniform array, the inwall of synchronizing ring 4 is interior cone of friction 4-2, tooth hub 6 inner circumference is provided with tooth hub internal spline 6-2, tooth hub 6 excircle is provided with tooth hub external splines 6-3, tooth hub 6 outer peripheral surface is provided with axial slot 6-1, gear ring 7 excircle is provided with fork slot 7-1, gear ring 7 inner circumference is provided with gear ring internal spline 7-3, described gear comprises shift gear 1, in conjunction with tooth 2 and friction conical ring 3, shift gear 1, be split-type structural in conjunction with tooth 2 and friction conical ring 3, the axial extension part of rear side of shift gear 1 is provided with shift gear external splines 1-1, excircle in conjunction with tooth 2 is provided with in conjunction with tooth external splines 2-3, inner circumference in conjunction with tooth 2 is provided with in conjunction with tooth internal spline 2-1, several jacks 2-2 of circumferentially uniform array is provided with in conjunction with tooth 2, friction conical ring 3 is provided with and mates corresponding several pawls 3-1 with jack 2-2, the outer wall of friction conical ring 3 is external friction conical surface 3-2, be equipped with heat radiation blind slot 8 on the inwall of described friction conical ring 3 and on the outer wall of synchronizing ring 4, in described heat radiation blind slot 8, be provided with thermal grease bar,
Shift gear 1 by external splines 1-1 to engage with in conjunction with tooth internal spline 2-1 realize with in conjunction with the antitorque connection of tooth 2, realize being connected with friction the antitorque of conical ring 3 in the jack 2-2 of the corresponding Intercalation tooth 2 of pawl 3-1 difference of friction conical ring 3, the interior cone of friction 4-2 of synchronizing ring 4 contacts with external friction conical surface 3-2, the boss 4-1 of synchronizing ring 4 inserts in the slot 6-1 of tooth hub 6, slide block 5 puts into slot 6-1, slide block 5 prolongs axial sides and contacts with shift gear 1, tooth hub 6 is placed in gear ring 7, and tooth hub external splines 6-3 engages with gear ring internal spline 7-3.
Described blind slot 8 is S shape, and the height of thermal grease bar is identical with the degree of depth of blind slot 8.
Described interior cone of friction 4-2 and external friction conical surface 3-2 is provided with carbon fiber friction lamella.
The inner circumference central cross-section place of described gear ring 7 is provided with ball-and-socket 7-2.
The top of slide block 5 has cavity 5-1, is provided with ball 5-2 in cavity, and ball 5-2 is connected by the bottom of spring 5-3 and cavity 5-1, and the upper end of described ball 5-2 is placed in ball-and-socket 7-2.
The number at least three of described jack 2-2, pawl 3-1 is identical with the number of jack 2-2.
The number of described boss 4-1 is at least three, and the number of boss 4-1 is identical with the number of slide block 5.
Shift fork (not shown) promotes tooth cover 7 by fork slot 7-1 and is with movable slider 5 entirety to shift gear 1 one lateral movement by ball-and-socket 7-2 to the right.Slide block 5 prolongs the axial side close to shift gear 1 and contacts with boss 4-1 and promote synchronizing ring 4 to shift gear one lateral movement, makes interior cone of friction 4-2 contact with external friction conical surface 3-2 and produce friction torque.Friction torque is impelled with the antitorque component that is connected of friction conical ring 3 with after being reduced to zero with the speed discrepancy between the antitorque component be connected of synchronizing ring 4, tooth cover 7 cross synchronizing ring 4 with in conjunction with tooth 2 by gear ring internal spline 7-3 with realize antitorque connection in conjunction with tooth external splines 2-3, thus realize transmission shaft (not shown) and the antitorque connection of shift gear 1, complete shift process.
Claims (7)
1. a detachable automobile speed-changer synchronizer, comprise gear nested successively, synchronizing ring (4), slide block (5), tooth hub (6) and gear ring (7), the periphery of described synchronizing ring (4) is provided with several boss (4-1) of uniform array, the inwall of synchronizing ring (4) is interior cone of friction (4-2), tooth hub (6) inner circumference is provided with tooth hub internal spline (6-2), tooth hub (6) excircle is provided with tooth hub external splines (6-3), tooth hub (6) outer peripheral surface is provided with axial slot (6-1), gear ring (7) excircle is provided with fork slot (7-1), gear ring (7) inner circumference is provided with gear ring internal spline (7-3), it is characterized in that: described gear comprises shift gear (1), in conjunction with tooth (2) and friction conical ring (3), shift gear (1), in conjunction with tooth (2) and friction conical ring (3) be split-type structural, the axial extension part of rear side of shift gear (1) is provided with shift gear external splines (1-1), excircle in conjunction with tooth (2) is provided with in conjunction with tooth external splines (2-3), inner circumference in conjunction with tooth (2) is provided with in conjunction with tooth internal spline (2-1), several jacks (2-2) of circumferentially uniform array are provided with in conjunction with tooth (2), friction conical ring (3) is provided with mates corresponding several pawls (3-1) with jack (2-2), the outer wall of friction conical ring (3) is the external friction conical surface (3-2), be equipped with heat radiation blind slot (8) on the inwall of described friction conical ring (3) and on the outer wall of synchronizing ring (4), in described heat radiation blind slot (8), be provided with thermal grease bar,
Shift gear (1) by external splines (1-1) to engage with in conjunction with tooth internal spline (2-1) realize with in conjunction with the antitorque connection of tooth (2), pawl (3-1) the middle realization of jack (2-2) of corresponding Intercalation tooth (2) and antitorque connection of friction conical ring (3) respectively of friction conical ring (3), the interior cone of friction (4-2) of synchronizing ring (4) contacts with the external friction conical surface (3-2), the boss (4-1) of synchronizing ring (4) inserts in the slot (6-1) of tooth hub (6), slide block (5) puts into slot (6-1), slide block (5) prolongs axial sides and contacts with shift gear (1), tooth hub (6) is placed in gear ring (7), tooth hub external splines (6-3) engages with gear ring internal spline (7-3).
2. a kind of detachable automobile speed-changer synchronizer according to claim 1, it is characterized in that: described blind slot (8) is S shape, the height of described thermal grease bar is identical with the degree of depth of blind slot (8).
3. a kind of detachable automobile speed-changer synchronizer according to claim 2, is characterized in that: described interior cone of friction (4-2) and the external friction conical surface (3-2) are provided with carbon fiber friction lamella.
4. a kind of detachable automobile speed-changer synchronizer according to claim 3, is characterized in that: the inner circumference central cross-section place of described gear ring (7) is provided with ball-and-socket (7-2).
5. a kind of detachable automobile speed-changer synchronizer according to claim 4, it is characterized in that: the top of slide block (5) has cavity (5-1), ball (5-2) is provided with in cavity, ball (5-2) is connected by the bottom of spring (5-3) with cavity (5-1), and the upper end of described ball (5-2) is placed in ball-and-socket (7-2).
6. a kind of detachable automobile speed-changer synchronizer according to claim 5, it is characterized in that: the number at least three of described jack (2-2), pawl (3-1) is identical with the number of jack (2-2).
7. a kind of detachable automobile speed-changer synchronizer according to claim 1,2,3,4,5 or 6, it is characterized in that: the number of described boss (4-1) is at least three, the number of boss (4-1) is identical with the number of slide block (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420624323.3U CN204186835U (en) | 2014-10-27 | 2014-10-27 | A kind of detachable automobile speed-changer synchronizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420624323.3U CN204186835U (en) | 2014-10-27 | 2014-10-27 | A kind of detachable automobile speed-changer synchronizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204186835U true CN204186835U (en) | 2015-03-04 |
Family
ID=52618842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420624323.3U Expired - Fee Related CN204186835U (en) | 2014-10-27 | 2014-10-27 | A kind of detachable automobile speed-changer synchronizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204186835U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065500A (en) * | 2015-08-04 | 2015-11-18 | 天津天海同步科技有限公司 | Lock pin type synchronizer |
| CN105485204A (en) * | 2016-01-21 | 2016-04-13 | 无锡城市职业技术学院 | Friction-inertia type locking ring type synchronizer |
-
2014
- 2014-10-27 CN CN201420624323.3U patent/CN204186835U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065500A (en) * | 2015-08-04 | 2015-11-18 | 天津天海同步科技有限公司 | Lock pin type synchronizer |
| CN105485204A (en) * | 2016-01-21 | 2016-04-13 | 无锡城市职业技术学院 | Friction-inertia type locking ring type synchronizer |
| CN105485204B (en) * | 2016-01-21 | 2018-05-08 | 无锡城市职业技术学院 | One kind friction inertia-type lock ring type synchronized |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 Termination date: 20191027 |