CN105673117A - Variable valve timing device - Google Patents
Variable valve timing device Download PDFInfo
- Publication number
- CN105673117A CN105673117A CN201410677040.XA CN201410677040A CN105673117A CN 105673117 A CN105673117 A CN 105673117A CN 201410677040 A CN201410677040 A CN 201410677040A CN 105673117 A CN105673117 A CN 105673117A
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- CN
- China
- Prior art keywords
- rotor
- gear
- outer cover
- variable valve
- valve timing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- Valve-Gear Or Valve Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
The invention relates to a variable valve timing device. The variable valve timing device comprises a helical gear, a gear insert, a rotor and an outer cover. The helical gear is connected with the outer cover through the gear insert; a hydraulic chamber is formed through the gear insert and the outer cover; the rotor which is connected with the gear insert through a locking device is disposed in the hydraulic chamber; the middle of the rotor is connected with a cam shaft; the locking device comprises a locking pin and a locking pin hole; the locking pin is disposed on the lower surface of the rotor; the locking pin hole matched with the locking pin is formed in the upper surface of the gear insert; and an oil storing groove is formed in the bottom of the locking pin. The variable valve timing device has the advantages that the oil storing groove is formed in the bottom of the locking pin, so that a certain amount of lubricating oil is reserved in the oil storing groove of the locking pin after halt, abnormal sound produced during starting after halt for a long time is reduced, meanwhile the contact area is decreased, and the friction force is reduced.
Description
Technical field
The present invention relates to a kind of variable valve timing apparatus, for adjustment cam axle phase angle.
Background technology
Existing a kind of twisted spur gear variable valve timing apparatus, driving part is twisted spur gear, is a class integral part of spiral wheel engagement mode. In FIG, gear 6 is connected with outer cover 2 by gear inserts 1, forms hydraulic chamber, the built-in rotor 4 being connected with camshaft 3, driving rotor to make camshaft 3 produce phase change relative to bent axle by pressure medium, the electromagnetic hydraulic valve that is circulated through of medium realizes. Existing design opens rotor 4 and the lock locking apparatus 5 on gear inserts 1 by pressure medium so that timing is in advance. Make rotor 4 lock pin fall into sprocket wheel pin-and-hole by reverse pressure medium again and form lockup state. Opening in pin and the process of the pin that falls at lock locking apparatus and can produce the slight sound, the room, chamber formed due to outer cover 2 and gear inserts 1 has sound effects so that this kind of sound amplifies, especially particularly evident under engine idle state; And outer cover 2 is aluminum alloy material, inner die cavity needs overall processing, and difficulty of processing is big, and cost is higher, and efficiency is lower. Therefore, it should provide a kind of new technical scheme to solve the problem.
Summary of the invention
It is an object of the invention to: for above-mentioned deficiency, it is provided that a kind of twisted spur gear variable valve timing apparatus.
For achieving the above object, the technical solution used in the present invention is:
A kind of variable valve timing apparatus, comprise twisted spur gear, gear inserts, rotor and outer cover, twisted spur gear is connected with outer cover by gear inserts, gear inserts and outer cover form hydraulic chamber, are provided with and the rotor that gear inserts is connected by lock locking apparatus in hydraulic chamber, and the middle part of rotor connects camshaft, lock locking apparatus comprises lock shotpin and lock shotpin hole, lock shotpin is arranged at the lower surface of rotor, and gear inserts upper surface is provided with and the lock shotpin hole locked shotpin and coordinates, locks and has offered oil storage vessel bottom shotpin.
Further, lock is pressed with locating sleeve in shotpin hole.
Preferably, locating sleeve is heat-treated.
Further, outer cover comprises one and forms the stator of hydraulic chamber and the bonnet of the upper stator upper end of a covering with gear inserts.
In the above-described techniques, bonnet is obtained by plate stamping, and carries out machining to two-sided, and stator adopts aluminum alloy materials to make, and is ensured the size of die cavity by mould, and stator processing region is only the confined planes being connected with bonnet.
Due to the application of technique scheme, the present invention compared with prior art tool have the following advantages:
1, locking bottom shotpin and offered oil storage vessel, make to retain in the oil storage vessel of lock shotpin certain lubricating oil after a shutdown, when starting after decreasing long-time shutdown, the abnormal sound of generation, also reduces contact area simultaneously, reduces friction.
2, lock in shotpin hole the locating sleeve press-fited, it is possible to improve and the quality of fit of lock shotpin, lower the gap between lock shotpin and lock shotpin hole, and locating sleeve is heat-treated the hardness that can improve contact surface, prevent abrasion.
3, outer cover resolves into stator and bonnet two parts, and original sound effects can be eliminated in the gap between them.
4, bonnet is obtained by plate stamping, ensures precision by two-sided mill, and the lower also finished product of part tooling cost is easy to obtain.
5, stator adopts extruding aluminium alloy material to make, and is ensured the size of die cavity by mould, and stator processing region is only the confined planes being connected with bonnet, reduces the complicacy of processing, and part tooling cost is lower, and finished product is easy to obtain.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of prior art.
Accompanying drawing 2 is the structural representation of the present invention.
Accompanying drawing 3 is the structural representation of the stator of the present invention.
Accompanying drawing 4 is the structural representation of the lock shotpin of the present invention.
Accompanying drawing 5 is the structural representation in the lock shotpin hole of the present invention.
In above accompanying drawing: 1, twisted spur gear, 2, gear inserts, 3, rotor, 4, outer cover, 41, stator, 42, bonnet, 43, confined planes, 5, lock locking apparatus, 51, lock shotpin, 52, lock shotpin hole, 53, oil storage vessel, 54, locating sleeve, 6, camshaft.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment one:
As shown in Figures 2 to 5, a kind of variable valve timing apparatus of the present invention, comprise twisted spur gear 1, gear inserts 2, rotor 3 and outer cover 4, twisted spur gear 1 is connected with outer cover 4 by gear inserts 2, gear inserts 2 and outer cover 4 form hydraulic chamber, it is provided with in hydraulic chamber and the rotor 3 that gear inserts 2 is connected by lock locking apparatus 5, the middle part of rotor 3 connects camshaft 6, lock locking apparatus 5 comprises lock shotpin 51 and lock shotpin hole 52, lock shotpin establishes 51 lower surfaces being placed in rotor 3, gear inserts 2 upper surface is provided with and the lock shotpin hole 52 locked shotpin 51 and coordinate, oil storage vessel 53 has been offered bottom lock shotpin 51. having offered oil storage vessel 53 bottom lock shotpin 51, made after a shutdown to retain certain lubricating oil in the oil storage vessel 53 of lock shotpin 51, when starting after decreasing long-time shutdown, the abnormal sound of generation, also reduces contact area simultaneously, reduces friction.
Further, lock is pressed with locating sleeve 54 in shotpin hole 52, the locating sleeve 54 press-fited in lock shotpin hole 52, it is possible to improve and the quality of fit of lock shotpin 51, lowers the gap between lock shotpin 51 and lock shotpin hole 52.
Preferably, locating sleeve 54 is heat-treated, locating sleeve 54 is heat-treated the hardness that can improve contact surface, prevent abrasion.
Further, outer cover 4 comprises one and forms the stator 41 of hydraulic chamber and the bonnet 42 of upper stator 41 upper end of a covering with gear inserts 2, and outer cover 4 resolves into stator 41 and bonnet 42 two parts, and original sound effects can be eliminated in the gap between them.
Preferably, bonnet 42 is obtained by plate stamping, and carries out machining to two-sided, ensures precision by two-sided mill, and the lower also finished product of part tooling cost is easy to obtain; Stator 41 adopts aluminum alloy materials to make, and is ensured the size of die cavity by mould, and stator 41 process zone is only the confined planes 43 being connected with bonnet 42, reduces the complicacy of processing, and part tooling cost is lower, and finished product is easy to obtain.
The above is the preferred embodiment of the present invention; it is noted that for those skilled in the art, under the prerequisite not departing from principle of the present invention; can also making some improvement or replacement, these improve or replace and also should be considered as protection scope of the present invention.
Claims (3)
1. a variable valve timing apparatus, comprise twisted spur gear, gear inserts, rotor and outer cover, described twisted spur gear is connected with outer cover by gear inserts, described gear inserts and outer cover form hydraulic chamber, it is provided with in described hydraulic chamber and the rotor that gear inserts is connected by lock locking apparatus, the middle part of described rotor connects camshaft, it is characterized in that: described lock locking apparatus comprises lock shotpin and lock shotpin hole, described lock shotpin is arranged at the lower surface of rotor, described gear inserts upper surface is provided with and the lock shotpin hole locked shotpin and coordinate, oil storage vessel has been offered bottom described lock shotpin.
2. a kind of variable valve timing apparatus according to claim 1, it is characterised in that: it is pressed with locating sleeve in described lock shotpin hole.
3. a kind of variable valve timing apparatus according to claim 2, it is characterised in that: described outer cover comprises one and forms the stator of hydraulic chamber and the bonnet of the upper stator upper end of a covering with gear inserts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410677040.XA CN105673117A (en) | 2014-11-21 | 2014-11-21 | Variable valve timing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410677040.XA CN105673117A (en) | 2014-11-21 | 2014-11-21 | Variable valve timing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105673117A true CN105673117A (en) | 2016-06-15 |
Family
ID=56957566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410677040.XA Pending CN105673117A (en) | 2014-11-21 | 2014-11-21 | Variable valve timing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105673117A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150587A (en) * | 2016-08-29 | 2016-11-23 | 台州德尔福汽车部件有限公司 | A kind of middle variable valve timing apparatus and electromotor |
| CN110273726A (en) * | 2019-07-29 | 2019-09-24 | 绵阳富临精工机械股份有限公司 | A kind of lock pin pore structure and camshaft phase adjuster |
| CN111520209A (en) * | 2020-04-16 | 2020-08-11 | 江苏海龙电器有限公司 | Powder metallurgy integral type valve phase adjustment system |
-
2014
- 2014-11-21 CN CN201410677040.XA patent/CN105673117A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150587A (en) * | 2016-08-29 | 2016-11-23 | 台州德尔福汽车部件有限公司 | A kind of middle variable valve timing apparatus and electromotor |
| CN106150587B (en) * | 2016-08-29 | 2019-02-01 | 浙江富杰德汽车系统有限公司 | A kind of middle variable valve timing apparatus and engine |
| CN110273726A (en) * | 2019-07-29 | 2019-09-24 | 绵阳富临精工机械股份有限公司 | A kind of lock pin pore structure and camshaft phase adjuster |
| CN111520209A (en) * | 2020-04-16 | 2020-08-11 | 江苏海龙电器有限公司 | Powder metallurgy integral type valve phase adjustment system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160615 |