CN203098621U - Synchronizer sliding block - Google Patents
Synchronizer sliding block Download PDFInfo
- Publication number
- CN203098621U CN203098621U CN 201320061744 CN201320061744U CN203098621U CN 203098621 U CN203098621 U CN 203098621U CN 201320061744 CN201320061744 CN 201320061744 CN 201320061744 U CN201320061744 U CN 201320061744U CN 203098621 U CN203098621 U CN 203098621U
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- China
- Prior art keywords
- spring
- synchronizer
- groove
- sliding block
- synchronizer key
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Abstract
The utility model provides a synchronizer sliding block, and belongs to the technical field of automobiles. The synchronizer sliding block resolves the problem that a part between two limiting grooves of an existing synchronizer sliding block is of a straight line type, and a spring cannot be limited. The synchronizer sliding block comprises a long-strip-shaped body, one surface of the body is a spring installation surface, spring limiting grooves are formed in the two end portions of the spring installation surface, and a groove which is located between the two spring limiting grooves and enables the spring to move towards the center is formed in the spring installation surface. The groove limits the spring to enable the spring to be attached to the surface of a hub of the synchronizer, the spring will not move between the hub of the synchronizer and a synchronous ring and is prevented from acting on the synchronous ring, friction between the synchronous ring and the connection bevel gear surface is avoided, and the service life of the synchronous ring is prolonged.
Description
Technical field
The utility model belongs to automobile technical field, relates to a kind of synchronizer key.
Background technique
The effect of synchronizer key is the initial stage of putting into gear in the speed changer, push synchronizing ring to gear combining tooth, make the taper hole of synchronizing ring contact, rub with axis of cone face in conjunction with tooth, thereby make synchronizing ring turn over a specific angle, motion continues to put into gear, slide block will be depressed in the synchromesh gear hub, finish its mission.
Existing synchronizer key and spring lean, and the part between two restraining grooves is the design of linear type, can not be spacing to spring.A kind of monolateral synchronizer [patent No.: 201010235160.6] as Chinese patent is announced comprises synchromesh gear hub, synchronizer gear sleeve, elastic slide block and synchronizing ring; Described synchronizer gear sleeve is socketed on the described synchromesh gear hub slidably by spline, and described synchronizing ring is axially slidably socketed in the annular groove of described synchromesh gear hub one side; Described elastic slide block is a sheet-metal member, and its elasticity is fastened in the spline between the spline of described synchronizer gear sleeve, and front-end and back-end of axially stretching out the jag of described spline are arranged; Between described front-end and back-end, be provided with and be the positioning end that the T font extends; Described front end is the cydariform distending; One end of described positioning end and described synchromesh gear hub end face offset, and the other end selectively is against on the interior edge face of described synchronizing ring.Substitute rigidity slide block of the prior art and spring with an elastic slide block that is cydariform distending front end, and spacing at described positioning end, described elastic slide block can not drop out when gearshift is slided doing, and has simplified the structure of synchronizer simultaneously.
In the synchronizer assembly, synchronizer spring can be free to slide between synchromesh gear hub and synchronizing ring, therefore may cause spring that there is active force in synchronizing ring, and synchronizer and soldered tooth conical surface cunning are rubbed, thereby reduces the working life of synchronizing ring.In shift process, when synchronizer began for the first time synchronously, gearshift power diminished to some extent, can cause shift impact, influences travelling comfort.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, has proposed a kind of synchronizer key that can effectively prevent synchronizer spring play between synchromesh gear hub and synchronizing ring.
The purpose of this utility model can realize by following technical proposal: a kind of synchronizer key, it is characterized in that, this synchronizer key comprises the body that is strip, one side of described body is the spring attachment face, the two end part of spring attachment face all have the spring restraining groove, offer the groove that spring is drawn close to the centre between two spring restraining grooves on the described spring attachment face.
Synchronizer comprises synchromesh gear hub, is socketed in synchromesh gear hub outer synchronizer gear sleeve, synchronizing ring, spring, and synchronizing ring axially is socketed in the annular groove of synchromesh gear hub.This synchronizer key is arranged between synchromesh gear hub and the synchronizer gear sleeve, has a groove between the two spring restraining grooves, groove has position-limiting action to spring, make spring be attached to the synchromesh gear hub surface, and can be between synchromesh gear hub and synchronizing ring free play, thereby prevent that spring from acting on the synchronizing ring effectively, avoid the cunning of the synchronizing ring and the soldered tooth conical surface to rub, prolong the life-span of synchronizing ring.
On above-mentioned synchronizer key, described body inward at both ends bending, described spring restraining groove is positioned at the bending place.Bend about 90 degree to the same side in the body two ends, bending part is spacing to spring, prevents that spring from deviating from the spring attachment face of slide block.
On above-mentioned synchronizer key, described recess sidewall is the inclined-plane, and the gradient that forms with the spring attachment face is 10 °～45 °.When spring was in the place, inclined-plane, because the existence of the gradient, the reaction force that spring is subjected to the inclined-plane made spring have the trend that moves to groove floor, thereby makes the spring return, near the synchromesh gear hub of centre.
On above-mentioned synchronizer key, has arc transition between described inclined-plane and the spring attachment face.Arc transition, it is lighter that spring is slided, and it is smooth and easy more naturally to shift gears.
On above-mentioned synchronizer key, described body both sides all have the retaining edge, and described groove is positioned at retaining along last.Retaining is little along thickness, is easy to process groove, makes processing mode simpler, does not need body is repeated processing, simplifies manufacturing procedure.
On above-mentioned synchronizer key, described retaining edge and body integral structure.Part adopts the powder metallurgy processing mode, and processing request and cost are constant substantially, can extensively apply to the synchronizer of various speed changer.Part adopts sinter soging to form structural strength height, long service life.
Compared with prior art, this synchronizer key has the following advantages:
1. the synchronizer key overall structure is simple, and is easily manufactured and cost of production is low.
2. the spring attachment face has groove, makes the synchronizer spring return, near synchromesh gear hub, prevents the spring axial float, avoids spring action on synchronizing ring, prevents that synchronizing ring and the soldered tooth conical surface cunning from rubbing, and reduces speed changer towing moment of torsion, and prolongs the life-span of synchronizing ring.
3. synchronizer key is subjected to the influence of the axial thrust load of spring force, and gearshift power is increased, and the gearshift power of increase can be offset the part that gearshift power reduces when beginning synchronously for the first time, thereby gearshift power is steadily risen, and reduces shift impact.
Description of drawings
Fig. 1 is the assembly structure schematic representation of synchronizer.
Fig. 2 is the front view of synchronizer.
Fig. 3 be among Fig. 2 A-A to partial sectional view.
Fig. 4 is the structural representation of synchronizer key.
Fig. 5 is the sectional view of synchronizer key.
Among the figure, 1, synchronizer key; 2, body; 3, spring attachment face; 4, spring restraining groove; 5, groove; 6, inclined-plane; 7, arc transition; 8, retaining edge; 9, synchromesh gear hub; 10, synchronizer gear sleeve; 11, synchronizing ring; 12, spring.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As Fig. 1, Fig. 2, shown in Figure 3, synchronizer comprises synchromesh gear hub 9, is socketed in synchronizer gear sleeve 10, synchronizing ring 11, spring 12 outside the synchromesh gear hub 9, and synchronizing ring 11 axially is socketed in the annular groove of synchromesh gear hub 9.This synchronizer key 1 is arranged between synchromesh gear hub 9 and the synchronizer gear sleeve 10, and as shown in Figure 4, it comprises the body 2 that is strip, and a side of body 2 is a spring attachment face 3.The two end part of spring attachment face 3 all have spring restraining groove 4, offer the groove 5 that spring 12 is drawn close to the centre between two spring restraining grooves 4 on the spring attachment face 3.
Specifically, as Fig. 4, shown in Figure 5, the bending of body 2 inward at both ends, spring restraining groove 4 is positioned at the bending place.Groove 5 sidewalls are inclined-plane 6, and the gradient that forms with spring attachment face 3 is 10 °～45 °, has arc transition 7 between inclined-plane 6 and the spring attachment face 3.Body 2 both sides all have retaining along 8, and groove 5 is positioned at retaining along on 8, retaining along 8 with body 2 integral structures, retaining can be made with punching press or panel beating with body 2 along 8.
In order to prevent spring 12 play and the shift impact when reducing to begin synchronously between synchromesh gear hub 9 and synchronizing ring 11, part in the synchronizer key 1 of the present utility model between the two ends spring restraining groove 4 adopts groove 5 structures, makes that spring attachment face 3 centres are low, both sides are high.When beginning synchronously for the first time in shift process, because the existence on inclined- plane 6,12 pairs of synchronizer key 1 of spring have the effect of axial thrust load, can compensate that part that gearshift power reduces, thereby gearshift power is steadily risen, and reduce or have eliminated shift impact.Simultaneously, to the not influence of maximum gearshift power, and the processing request of synchronizer key 1 and cost are constant substantially, can extensively apply to the synchronizer of various speed changer.
When neutral gear, spring 12 is if be in 6 places, inclined-plane, because the existence of the gradient, the reaction force that spring 12 is subjected to can oriented third side to component, thereby make spring 12 returns, near synchromesh gear hub 9, prevent spring 12 horizontal looseness, avoid spring 12 to act on the synchronizing ring 11, prevent that synchronizing ring 11 and the soldered tooth conical surface cunning from rubbing, reduce to pull moment of torsion, and prolong the life-span of synchronizing ring 11.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used 1, synchronizer key morely; 2, body; 3, spring attachment face; 4, spring restraining groove; 5, groove; 6, inclined-plane; 7, arc transition; 8, retaining edge; 9, synchromesh gear hub; 10, synchronizer gear sleeve; 11, synchronizing ring; 12, term such as spring, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (6)
1. synchronizer key, it is characterized in that, this synchronizer key comprises the body (2) that is strip, one side of described body (2) is spring attachment face (3), the two end part of spring attachment face (3) all have spring restraining groove (4), offer the groove (5) that spring is drawn close to the centre that is positioned between two spring restraining grooves (4) on the described spring attachment face (3).
2. synchronizer key according to claim 1 is characterized in that, the bending of described body (2) inward at both ends, and described spring restraining groove (4) is positioned at the bending place.
3. synchronizer key according to claim 2 is characterized in that, described groove (5) sidewall is inclined-plane (6), and the gradient that forms with spring attachment face (3) is 10 °～45 °.
4. synchronizer key according to claim 3 is characterized in that, has arc transition (7) between described inclined-plane (6) and the spring attachment face (3).
5. according to claim 1 or 2 or 3 or 4 described synchronizer key, it is characterized in that described body (2) both sides all have retaining along (8), described groove (5) is positioned at retaining along on (8).
6. synchronizer key according to claim 5 is characterized in that, described retaining is along (8) and body (2) integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320061744 CN203098621U (en) | 2013-01-31 | 2013-01-31 | Synchronizer sliding block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320061744 CN203098621U (en) | 2013-01-31 | 2013-01-31 | Synchronizer sliding block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203098621U true CN203098621U (en) | 2013-07-31 |
Family
ID=48850026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320061744 Expired - Lifetime CN203098621U (en) | 2013-01-31 | 2013-01-31 | Synchronizer sliding block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203098621U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527663A (en) * | 2013-10-22 | 2014-01-22 | 天津天海同步科技股份有限公司 | Transmission synchronizing device |
| CN109027035A (en) * | 2018-08-22 | 2018-12-18 | 石狮真发齿轮有限公司 | A kind of lorry synchronizer assembly and its processing technology |
-
2013
- 2013-01-31 CN CN 201320061744 patent/CN203098621U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527663A (en) * | 2013-10-22 | 2014-01-22 | 天津天海同步科技股份有限公司 | Transmission synchronizing device |
| CN109027035A (en) * | 2018-08-22 | 2018-12-18 | 石狮真发齿轮有限公司 | A kind of lorry synchronizer assembly and its processing technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |