CN203296846U - VVT high-speed lock pin device - Google Patents
VVT high-speed lock pin device Download PDFInfo
- Publication number
- CN203296846U CN203296846U CN2013203471394U CN201320347139U CN203296846U CN 203296846 U CN203296846 U CN 203296846U CN 2013203471394 U CN2013203471394 U CN 2013203471394U CN 201320347139 U CN201320347139 U CN 201320347139U CN 203296846 U CN203296846 U CN 203296846U
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- Prior art keywords
- lock pin
- locking
- vvt
- locking hole
- rotor
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- Expired - Lifetime
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Abstract
The utility model provides a technical scheme of a VVT high-speed lock pin device. According to the technical scheme, the VVT high-speed lock pin device comprises a stator and a rotor; a locking hole is formed in the stator; a lock pin is arranged on the rotor; the side, close to a locking surface, of the locking hole is provided with a step; the joint of the step and the locking hole is provided with a transition inclined plane. By means of the technical scheme of the VVT high-speed lock pin device, locking can be relieved quickly so as to increase corresponding response speed, and quick locking can be realized under the condition that the torsional vibration effect of a cam gives rise to reciprocating fluctuation of the rotor.
Description
Technical field
The utility model relates to a kind of Locking Device of cam conenser of motor car engine Variable Valve Time, especially a kind of VVT high speed latching mechanism.
Background technique
In recent years, Variable Valve Time (VVT, Variable Valve Timing) technology is widely used on Modern Engine, and it can promote engine power, moment of torsion, reduces oil consumption and exhaust emissions.In the cam conenser of Variable Valve Time, be provided with a latch gear be used to controlling the relative position of rotor and stator, in engine shutdown or start-up course, lock pin is wanted rotor and stator to be pinned, and when the needs control phase, lock pin will be removed.phase-adjusted speed of response is one of Key Performance Indicator of Variable Valve Time, and the prerequisite of control phase is the lock pin release, therefore the release speed of response of latch gear is most important, in engine shutdown moment, need quick locking, prevent that rotor and stator from producing mechanical collision, in engine starting process, need less locking gap, to prevent larger collision noise, but less locking gap can cause the release time lengthening and affect system response time, because the effect of cam torsional oscillation can make rotor that small size swing is arranged, little locking gap also can cause when the needs locking, lock pin can not enter fast lockpin hole and take a seat.
The model utility content
The purpose of this utility model, be exactly for the existing deficiency of prior art, and provide a kind of technological scheme of VVT high speed latching mechanism, this scheme can realize removing fast locking, to improve phase response speed, and can solve because the effect of cam torsional oscillation causes rotor and come and go in the situation of fluctuation, realize quick locking.
This programme is achieved by the following technical measures: a kind of VVT high speed latching mechanism, include stator, and rotor, be provided with locking hole on stator, on rotor, be provided with lock pin, on locking hole or lock pin, is provided with step.
Preferred as this programme: locking hole is provided with step by a side of locking face; The joint of step and locking hole is provided with excessive inclined-plane.
Preferred as this programme: the top of lock pin is provided with step; The joint of step and locking hole is provided with excessive inclined-plane.
Preferred as this programme: the surface of contact of step and lock pin is plane or arc surface.
Preferred as this programme: the surface of contact of locking hole and lock pin is plane or arc surface.
The beneficial effect of this programme can be learnt according to the narration to such scheme, because lock pin or locking hole in this scheme are provided with step, can realize the function of quick locking and release.
As can be seen here, the utility model compared with prior art, has substantive distinguishing features and progress, and the beneficial effect of its enforcement is also apparent.
The accompanying drawing explanation
Fig. 1 is the structural representation that the utility model locking hole is provided with step.
Fig. 2 is the upwarding cutaway view of Fig. 1.
Fig. 3 is the structural representation that the utility model lock pin is provided with step.
Fig. 4 is the upwarding cutaway view of Fig. 3.
In figure, 1 is rotor, and 2 is stator, and 3 is lock pin, and 4 is locking hole, and 5 is step, and 6 is excessive inclined-plane.
Embodiment
For clearly demonstrating the technical characterstic of this programme, below by an embodiment, and in conjunction with its accompanying drawing, this programme is set forth.
By accompanying drawing 1, can find out, be cylindrical at the head of epitrochanterian lock pin, and the locking side of the lockpin hole on stator arranges a step, and there are straightway or larger circular arc in locking hole and step part, and intermediate location has excessive inclined-plane.When the lock pin head is locked on the step of lockpin hole, can obtain less locking gap, again because of the less locking section in gap in stepped portions, and the height of step only has 1/2nd left and right of the locking hole degree of depth, lock pin is just relatively few many at little gap section rising needed time, thereby realizes quick release.When needs locking phase discriminator, the lock pin head, first by the large lockpin hole top Quick Catch in locking gap, is controlled at less scope by the swing of rotor, then enters little gap, step bottom locking by inclined-plane, thereby realized quick locking.The surface of contact of step and lock pin is that plane or arc surface are in order to make lock pin not be subject to coming from the lateral force of non-locking direction, to prevent the interference of non-locking direction lateral force to release and locking process.
By accompanying drawing 2, can find out, at the head of lock pin, a step that diameter is smaller is set, stepped part is provided with the rounding off inclined-plane, and lockpin hole is designed to the straight hole with straightway or orthodrome.When the enlarged diameter section of lock pin enters lockpin hole, have less locking gap, while being locked at reduced diameter section, have larger locking gap, when needing release, lock pin rises to large gap does not need to cover whole process, therefore but quick release, when the needs locking, reduced diameter section on lock pin is first by the lockpin hole Quick Catch, the swing of rotor is controlled to less scope, then enters little gap, step bottom locking by the transition inclined-plane between step, thereby realized quick locking.Surface of contact at locking hole and lock pin is that plane or arc surface are in order to make lock pin not be subject to coming from the lateral force of non-locking direction, to prevent the interference of non-locking direction lateral force to release and locking process.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. a VVT high speed latching mechanism, include stator, and rotor, be provided with locking hole on stator, on rotor, be provided with lock pin, it is characterized in that: on described locking hole or lock pin, be provided with step.
2. a kind of VVT high speed latching mechanism according to claim 1 is characterized in that: described locking hole is provided with step by a side of locking face; The joint of described step and locking hole is provided with excessive inclined-plane.
3. a kind of VVT high speed latching mechanism according to claim 1, it is characterized in that: the top of described lock pin is provided with step; The joint of described step and locking hole is provided with excessive inclined-plane.
4. a kind of VVT high speed latching mechanism according to claim 2, it is characterized in that: the surface of contact of described step and lock pin is plane or arc surface.
5. a kind of VVT high speed latching mechanism according to claim 3, it is characterized in that: the surface of contact of described locking hole and lock pin is plane or arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203471394U CN203296846U (en) | 2013-06-18 | 2013-06-18 | VVT high-speed lock pin device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203471394U CN203296846U (en) | 2013-06-18 | 2013-06-18 | VVT high-speed lock pin device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203296846U true CN203296846U (en) | 2013-11-20 |
Family
ID=49572862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203471394U Expired - Lifetime CN203296846U (en) | 2013-06-18 | 2013-06-18 | VVT high-speed lock pin device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203296846U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291401A (en) * | 2013-06-18 | 2013-09-11 | 绵阳富临精工机械股份有限公司 | VVT high-speed lock pin device |
-
2013
- 2013-06-18 CN CN2013203471394U patent/CN203296846U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291401A (en) * | 2013-06-18 | 2013-09-11 | 绵阳富临精工机械股份有限公司 | VVT high-speed lock pin device |
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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: 20131120 |