CN103438116B - Synchronizer - Google Patents
Synchronizer Download PDFInfo
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- CN103438116B CN103438116B CN201310346703.5A CN201310346703A CN103438116B CN 103438116 B CN103438116 B CN 103438116B CN 201310346703 A CN201310346703 A CN 201310346703A CN 103438116 B CN103438116 B CN 103438116B
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- spring
- diaphragm spring
- lock unit
- steel ball
- sliding block
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Abstract
The invention discloses a synchronizer which comprises a gear hub (300) sleeved on a transmission shaft, a gear sleeve (100) sleeved on the gear hub (300), a synchronization ring and a locating slider (200), wherein the locating slider (200) comprises a base (203), a diaphragm spring (202) and a first steel ball (201); the base (203) is internally provided with a blind hole, a first end of the diaphragm spring (202) acts on the bottom end of the blind hole, a second end of the diaphragm spring (202) acts on the first steel ball (201), and the first steel bal (201) acts in a first locking slot on the gear sleeve (100) by virtue of the elasticity of the diaphragm spring (202). When the gear sleeve has axial displacement force under a neutral position state, the diaphragm spring is compressed, a reverse axial force is generated to act with the inclined face of the first locking slot of the gear sleeve so as to prevent the axial displacement of the gear sleeve; the neutral-position locating capability of the synchronizer is improved, and the performances of the synchronizer are improved.
Description
Technical field
The present invention relates to automotive trannsmission system technical field, more particularly to a kind of lock unit.
Background technology
Lock unit can make different gears two part to be engaged reach speed before engagement unanimously, efficiently avoid gear shift
When produce between cog impact and noise, be widely used in Hyundai Motor variator, but current double-clutch automatic gearbox
Occur, higher requirement is proposed to the neutral gear positioning performance of lock unit.Neutral stationkeeping ability refer to the process of automobile gearshift, by
When one shelves changes another gear, centre will will prevent tooth set from taking place along through neutral, when neutral position state
The play in drive shaft axis direction, the ability that tooth set is positioned.Therefore exist not enough as follows:
Although existing lock unit can be applied in double-clutch automatic gearbox, its neutral stationkeeping ability meets not
Use requirement.
Content of the invention
The purpose of the embodiment of the present invention is to provide a kind of lock unit, solves neutral positioning at neutral gear position for the lock unit
The technical problem of ability, improves the performance of lock unit.
To achieve these goals, the invention provides a kind of lock unit, including the tooth hub being set on power transmission shaft, in institute
State sheathed tooth set on tooth hub, synchronous ring and positioning sliding block, wherein, described positioning sliding block includes pedestal, diaphragm spring and
One steel ball, offers blind hole in the susceptor, and the first end of described diaphragm spring acts on the bottom of described blind hole, described film
Second end of flat spring acts on described first steel ball, so that described first steel ball is acted on by the elastic force of described diaphragm spring
In the first lock slots that described tooth puts.
Alternatively, described diaphragm spring is the chip type spring being bent into indentation.
Alternatively, the second end of described diaphragm spring is provided with spring groove, described first steel ball is arranged on described bullet
In property groove.
Alternatively, described spring groove and described diaphragm spring integrated punching molding.
Alternatively, described spring groove is V-shaped groove, the axis of the equidistant point at V-shaped angle of described V-shaped groove and described tooth hub
It is vertically arranged；Or described spring groove is hemisphere type groove.
Alternatively, described positioning sliding block is 3, is distributed on the circumference of described tooth hub.
Alternatively, described lock unit also includes stopping slide block, described stop slide block includes slide body, helical spring and stop
Key, described blocks key is the second steel ball or alignment pin.
Alternatively, described positioning sliding block is 3, and described stop slide block is 3；Described positioning sliding block and described stop slide block
Interval setting, is distributed on the circumference of described tooth hub.
Alternatively, replace described blind hole with through hole, the first end of described diaphragm spring acts on described through described through hole
On tooth hub.
At least there is following technique effect in the embodiment of the present invention:
1) during diaphragm spring bend by pressure, to restore, the spring force perpendicular to membrane surface direction can be produced, decompose
It is the spring force along blind hole axis direction and the spring force perpendicular to blind hole axis direction, under tooth is enclosed within neutral state, have axle
During to play power, significantly compress diaphragm spring further, produce spring force, the first lock slots ramp effect with tooth set, produce
Reversely axial force, stoping tooth from being enclosed within neutral gear is axial float；Improve the neutral stationkeeping ability of lock unit, improve lock unit
Performance；
2) axial float power applies a force to the first steel ball, and the first steel ball entered spring groove and passes to diaphragm spring, spring
Compressed generation counteracting force, stops axle sleeve that axial float occurs, by arranging spring groove, axial float power can be made more preferable
Pass to diaphragm spring.
Brief description
The view along transmission axis direction of the embodiment that Fig. 1 provides for the present invention；
Fig. 2 is the sectional view in Fig. 1 along a-a direction；
Fig. 3 is the sectional view in Fig. 1 along b-b direction；
Fig. 4 is the front view of positioning sliding block in Fig. 1；
Fig. 5 is the fixed sectional view along c-c direction in Fig. 4；
Reference: tooth set 100, positioning sliding block 200, tooth hub 300, the first steel ball 201, diaphragm spring 202, pedestal 203,
Spring groove 204, stopping means 205.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below in conjunction with accompanying drawing to concrete reality
Apply example to be described in detail.
According to Fig. 1 to Fig. 5, the embodiment of the present invention provides a kind of lock unit, including the tooth hub being set on power transmission shaft
300, tooth set 100, synchronous ring and positioning sliding block sheathed on tooth hub 300, positioning sliding block includes pedestal 203, diaphragm spring
202 and first steel ball 201, pedestal 203 offers blind hole, the first end of diaphragm spring 202 acts on the bottom of blind hole, film
Second end of flat spring 202 acts on the first steel ball 201, so that the first steel ball 202 is acted on by the elastic force of diaphragm spring 202
In the first lock slots on tooth set 100.Diaphragm spring 202 is the chip type spring being bent into indentation.In diaphragm spring 202
Second end is provided with spring groove 204, and the first steel ball is arranged in spring groove 204.Spring groove 204 and diaphragm spring 202
Integrated punching molding.Spring groove 204 is V-shaped groove, and the equidistant point at V-shaped angle of V-shaped groove is vertical with the axis of tooth hub 100 to be set
Put；Or spring groove 204 is hemisphere type groove.Positioning sliding block 200 is 3, is distributed on the circumference of tooth hub 100.Pedestal 203 is note
Molded part, is arranged in the radial slot on tooth hub 300, can be fixedly connected with tooth hub 300 or abut.Same on pedestal 203
When be provided with prevent the first steel ball 201 eject blind hole stopping means 205.
During diaphragm spring 202 bend by pressure, to restore, the spring force perpendicular to membrane surface direction can be produced, point
Solution is the spring force along blind hole axis direction and the spring force perpendicular to blind hole axis direction, especially selects and is bent in saw
During the chip type spring of dentation, this effect becomes apparent from.During neutral gear, the spline tooth of tooth set 100 is contacted with the first steel ball 201, such as accompanying drawing 3
Shown, now diaphragm spring 202, for mild compression state, produces spring force and pins tooth set 100；When tooth set 100 is in neutral gear
When having axial float power under state, significantly compress diaphragm spring 202 further, produce spring force, the first locking with tooth set 100
Groove ramp effect, produces reverse axial force, and stoping tooth from being enclosed within neutral gear is axial float；Improve the neutral positioning energy of lock unit
Power, improves the performance of lock unit, is particularly used in double-clutch automatic gearbox.Positioning sliding block 200 has not only acted as biography
The effect of the synchronizer key of system, further increases the neutral stationkeeping ability of lock unit simultaneously.It is additionally provided with elasticity recessed simultaneously
Groove, axial float power applies a force to the first steel ball, and the first steel ball entered spring groove and passes to diaphragm spring, the compressed product of spring
Raw counteracting force, stops axle sleeve that axial float occurs, arranges spring groove, axial float power can be made preferably to pass to diaphragm
Spring, makes diaphragm spring stress evenly, and the counteracting force effect of generation also becomes apparent from.
According to another embodiment of the present invention, replace blind hole with through hole, the first end of diaphragm spring 200 passes through through hole to act on
On tooth hub 300.
According to another embodiment of the present invention, lock unit also includes stopping slide block, stops that slide block includes slide body, spiral bullet
Spring and blocks key, blocks key is the second steel ball or positioning, and positioning sliding block is 3, stops that slide block is 3；Positioning sliding block and stop
Slide block interval setting, is distributed on the circumference of tooth hub.Determining in embodiment one can be increased on the basis of existing lock unit
Position slide block device, can improve the neutral stationkeeping ability of traditional lock unit, by the improvement to conventional synchronizer, improve its property
Energy.
From the foregoing, it will be observed that the embodiment of the present invention has the advantage that
1st, during diaphragm spring bend by pressure, to restore, the spring force perpendicular to membrane surface direction can be produced, decompose
It is the spring force along blind hole axis direction and the spring force perpendicular to blind hole axis direction, under tooth is enclosed within neutral state, have axle
During to play power, significantly compress diaphragm spring further, produce spring force, the first lock slots ramp effect with tooth set, produce
Reversely axial force, stoping tooth from being enclosed within neutral gear is axial float；Improve the neutral stationkeeping ability of lock unit, improve lock unit
Performance；
2nd, axial float power applies a force to the first steel ball, and the first steel ball entered spring groove and passes to diaphragm spring, spring
Compressed generation counteracting force, stops axle sleeve that axial float occurs, by arranging spring groove, axial float power can be made more preferable
Pass to diaphragm spring；
3rd, increase this kind positioning sliding block device by the improvement to conventional synchronizer or on the basis of conventional synchronizer,
The neutral stationkeeping ability of conventional synchronizer can be improved.
The above is only the preferred embodiment of the present invention it is noted that ordinary skill people for the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (7)
1. a kind of lock unit, including the tooth hub (300) being set on power transmission shaft, in the upper sheathed tooth set of described tooth hub (300)
(100), synchronous ring and positioning sliding block (200) are it is characterised in that described positioning sliding block (200) is used for the sky of described lock unit
Gear positioning, described positioning sliding block (200) includes pedestal (203), diaphragm spring (202) and the first steel ball (201), described pedestal
(203) it is arranged in the radial slot on tooth hub 300 and is fixedly connected with described tooth hub (300), open up in described pedestal (203)
There is a blind hole, the first end of described diaphragm spring (202) acts on the bottom of described blind hole, the second of described diaphragm spring (202)
End acts on described first steel ball (201), so that described first steel ball (201) is made by the elastic force of described diaphragm spring (202)
In the first lock slots on described tooth set (100)；
Described diaphragm spring (202) is the chip type spring being bent into indentation；
Second end of described diaphragm spring (202) is provided with spring groove (204), described first steel ball (201) is arranged on institute
State in spring groove (204).
2. lock unit according to claim 1 is it is characterised in that described spring groove (204) and described diaphragm spring
(202) integrated punching molding.
3. lock unit according to claim 2 it is characterised in that described spring groove (204) be V-shaped groove, described V-shaped groove
The equidistant point at V-shaped angle be vertically arranged with the axis of described tooth hub (300)；
Or described spring groove (204) is hemisphere type groove.
4. lock unit according to claim 1, it is characterised in that described positioning sliding block (200) is 3, is distributed on described
On the circumference of tooth hub (300).
5. lock unit according to claim 1 is it is characterised in that described lock unit also includes stopping slide block, described stop
Slide block includes slide body, helical spring and blocks key, and described blocks key is the second steel ball or alignment pin.
6. lock unit according to claim 5 it is characterised in that described positioning sliding block (200) is 3, slide by described stop
Block is 3；Described positioning sliding block (200) and described stop slide block interval setting, are distributed on the circumference of described tooth hub (300).
7. the lock unit according to any one of claim 1-6 is it is characterised in that replace described blind hole with through hole, described
The first end of diaphragm spring (202) acts on described tooth hub (300) through described through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310346703.5A CN103438116B (en) | 2013-08-09 | 2013-08-09 | Synchronizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310346703.5A CN103438116B (en) | 2013-08-09 | 2013-08-09 | Synchronizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103438116A CN103438116A (en) | 2013-12-11 |
| CN103438116B true CN103438116B (en) | 2017-01-18 |
Family
ID=49691819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310346703.5A Active CN103438116B (en) | 2013-08-09 | 2013-08-09 | Synchronizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103438116B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389918A (en) * | 2014-11-04 | 2015-03-04 | 安徽星瑞齿轮传动有限公司 | Vehicle synchronizer |
| CN105889464A (en) * | 2014-12-26 | 2016-08-24 | 浙江汇鑫传动机械有限公司 | Coaxial multi-stage gearbox |
| CN105317872B (en) * | 2015-07-02 | 2018-07-06 | 宁波上中下自动变速器有限公司 | Synchronizer |
| CN106337885A (en) * | 2015-07-13 | 2017-01-18 | 上汽通用汽车有限公司 | Off-gear preventing self-lock pin for synchronizer of manual transmission |
| CN108194531B (en) * | 2018-02-11 | 2023-06-16 | 十堰同创传动技术有限公司 | Buckle type synchronizer combined sliding block |
| CN108253036B (en) * | 2018-02-11 | 2023-06-16 | 十堰同创传动技术有限公司 | Jaw synchronizer combined sliding block |
| CN112727943A (en) * | 2021-01-06 | 2021-04-30 | 泰州贺安特动力科技有限公司 | Novel synchronizer with rolling type sliding block |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9408943U1 (en) * | 1994-06-01 | 1994-07-21 | INA Wälzlager Schaeffler KG, 91074 Herzogenaurach | Synchronizer for manual transmissions |
| DE19941794B4 (en) * | 1999-09-02 | 2009-09-24 | Schaeffler Kg | Arrangement of a pressure piece in a synchronizer |
| KR100395056B1 (en) * | 2000-12-27 | 2003-08-19 | 현대자동차주식회사 | Synchronizer for manual transmission |
| DE10136429C1 (en) * | 2001-07-26 | 2002-10-10 | Daimler Chrysler Ag | Switching device for a motor vehicle gear comprises a sliding sleeve loaded in its switching position in the switching direction with a tension force via a unit positioned in a synchronizing body separate from a locking unit |
| FR2852646B1 (en) * | 2003-03-20 | 2005-06-10 | Peugeot Citroen Automobiles Sa | SYNCHRONIZER ASSEMBLY FOR TRANSMISSION OF A MOTOR VEHICLE |
| DE102010019453A1 (en) * | 2010-05-05 | 2011-11-10 | Hoerbiger Antriebstechnik Gmbh | Pre-synchronous unit for locking synchronization module of gearbox, has blocking stone which is accommodated in recess at synchronizing body which is rotatable at gearing axis |
| CN202732765U (en) * | 2012-06-30 | 2013-02-13 | 长城汽车股份有限公司 | Slider type synchronizer |
| CN203009635U (en) * | 2013-01-21 | 2013-06-19 | 柳州迅捷汽车同步器有限公司 | One or two gear synchronizer capable of putting into gear conveniently |
-
2013
- 2013-08-09 CN CN201310346703.5A patent/CN103438116B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103438116A (en) | 2013-12-11 |
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