CN103291401A - VVT high-speed lock pin device - Google Patents
VVT high-speed lock pin device Download PDFInfo
- Publication number
- CN103291401A CN103291401A CN2013102404467A CN201310240446A CN103291401A CN 103291401 A CN103291401 A CN 103291401A CN 2013102404467 A CN2013102404467 A CN 2013102404467A CN 201310240446 A CN201310240446 A CN 201310240446A CN 103291401 A CN103291401 A CN 103291401A
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- lock pin
- locking
- vvt
- locking hole
- rotor
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Abstract
The invention provides a VVT high-speed lock pin device which comprises a stator and a rotor. The stator is provided with a locking hole, the rotor is provided with a lock pin, a step is arranged on the side, close to a locking face, of the locking hole, and a transitional inclined face is arranged at the connection position of the step and the locking hole. By means of the VVT high-speed lock pin device, locking can be relieved quickly to improve phase response speed, and fast locking can be achieved under the condition that the rotor fluctuates in a reciprocating mode due to the cam torsional vibration effect.
Description
Technical field
What the present invention relates to is 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 the modern motor, 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 the relative position that a latch gear is used for control rotor and stator, in engine shutdown or start-up course, lock pin is wanted and rotor and stator can 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; so 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; preventing bigger collision noise, but less locking gap can cause the release time lengthening and influence 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, and lock pin can not enter lockpin hole fast and take a seat.
Summary of the invention
Purpose of the present invention, be exactly at the existing in prior technology deficiency, 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 under the situation of fluctuation, realize quick locking.
This programme is realized by following technical measures: a kind of VVT high speed latching mechanism, include stator, and rotor, stator is provided with locking hole, and rotor is provided with lock pin, and locking hole or lock pin are 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 learn according to the narration to such scheme, because lock pin or locking hole are provided with step in this scheme, can realize the function of quick locking and release.
This shows that the present invention compared with prior art has substantive distinguishing features and progress, the beneficial effect of its enforcement also is apparent.
Description of drawings
Fig. 1 is provided with the structural representation of step for locking hole of the present invention.
Fig. 2 is the upwarding cutaway view of Fig. 1.
Fig. 3 is provided with the structural representation of step for lock pin of the present invention.
Fig. 4 is the upwarding cutaway view of Fig. 3.
Among the 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 as can be seen, be cylindrical at the head of epitrochanterian lock pin, the locking side of the lockpin hole on stator arranges a step, and there are straightway or bigger 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 has only about 1/2nd of the locking hole degree of depth, lock pin is just few relatively many at little gap section rising needed time, thereby realizes quick release.When needs locking phase discriminator, the lock pin head is caught fast by big lockpin hole top, locking gap earlier, and the swing of rotor is controlled in small range, enters little gap, step bottom locking by the inclined-plane again, thereby has 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 subjected to coming from the lateral force of non-locking direction, to prevent that non-locking direction lateral force is to the interference of release and locking process.
By accompanying drawing 2 as can be seen, 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, when being locked at reduced diameter section, have bigger locking gap, when the need release, lock pin rises to big gap does not need to cover whole process, so but quick release, when the needs locking, reduced diameter section on the lock pin is caught fast by lockpin hole earlier, the swing of rotor is controlled in small range, entered little gap, step bottom locking by the transition inclined-plane between step again, 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 subjected to coming from the lateral force of non-locking direction, to prevent that non-locking direction lateral force is to the interference of release and locking process.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a VVT high speed latching mechanism includes stator, rotor, and stator is provided with locking hole, and rotor is provided with lock pin, it is characterized in that: described locking hole or lock pin are 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 |
|---|---|---|---|
| CN2013102404467A CN103291401A (en) | 2013-06-18 | 2013-06-18 | VVT high-speed lock pin device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102404467A CN103291401A (en) | 2013-06-18 | 2013-06-18 | VVT high-speed lock pin device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103291401A true CN103291401A (en) | 2013-09-11 |
Family
ID=49092845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102404467A Pending CN103291401A (en) | 2013-06-18 | 2013-06-18 | VVT high-speed lock pin device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103291401A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715322A (en) * | 2016-01-26 | 2016-06-29 | 重庆长安汽车股份有限公司 | Lockpin and installation structure thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296996A (en) * | 2010-06-25 | 2011-12-28 | 丰田自动车株式会社 | Variable valve timing device for internal combustion engine and manufacturing method therefor |
| US20120055429A1 (en) * | 2010-09-02 | 2012-03-08 | Denso Corporation | Variable valve timing control apparatus |
| JP2013002418A (en) * | 2011-06-21 | 2013-01-07 | Denso Corp | Valve timing adjusting device and method of assembling the same |
| CN203296846U (en) * | 2013-06-18 | 2013-11-20 | 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 CN2013102404467A patent/CN103291401A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296996A (en) * | 2010-06-25 | 2011-12-28 | 丰田自动车株式会社 | Variable valve timing device for internal combustion engine and manufacturing method therefor |
| US20120055429A1 (en) * | 2010-09-02 | 2012-03-08 | Denso Corporation | Variable valve timing control apparatus |
| JP2013002418A (en) * | 2011-06-21 | 2013-01-07 | Denso Corp | Valve timing adjusting device and method of assembling the same |
| CN203296846U (en) * | 2013-06-18 | 2013-11-20 | 绵阳富临精工机械股份有限公司 | VVT high-speed lock pin device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715322A (en) * | 2016-01-26 | 2016-06-29 | 重庆长安汽车股份有限公司 | Lockpin and installation structure thereof |
| CN105715322B (en) * | 2016-01-26 | 2018-08-14 | 重庆长安汽车股份有限公司 | A kind of lock pin and its mounting structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130911 |