CN204283534U - A kind of internal-combustion engine variable valve timing device - Google Patents
A kind of internal-combustion engine variable valve timing device Download PDFInfo
- Publication number
- CN204283534U CN204283534U CN201420708784.9U CN201420708784U CN204283534U CN 204283534 U CN204283534 U CN 204283534U CN 201420708784 U CN201420708784 U CN 201420708784U CN 204283534 U CN204283534 U CN 204283534U
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- CN
- China
- Prior art keywords
- protecgulum
- outer cover
- restraining groove
- combustion engine
- internal
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of internal-combustion engine variable valve timing device, this advance/retard mechanism comprises protecgulum and complements each other to form the outer cover of spring chamber with protecgulum, protecgulum is provided with multiple restraining groove, outer cover is provided with the riveted joint mouth matched with the position of restraining groove, and the top of riveted joint mouth is also provided with the compensation breach for alleviating outer cover strength.The utility model has the advantages that: assembling effect and the stress requirement that just can be reached needs by the structural design of component itself, reduce the requirement to equipment and machining accuracy, saved cost of production, and working efficiency.
Description
Technical field
The utility model relates to a kind of internal-combustion engine variable valve timing device, for adjustment cam axle phase angle.
Background technique
Known vane-type internal combustion engine variable valve timing apparatus, stator hydraulic pressure cavity is divided into two chambers, rotor (being connected with camshaft) is driven by importing corresponding hydraulic medium to both sides, make camshaft produce phase place change relative to bent axle, the circulation of medium is realized by the commutation control of electromagnetic hydraulic valve.
Existing a kind of internal-combustion engine variable valve timing device, one end is provided with torsion spring, is connected with an outer cover in one end of its stationary plane, and this outer cover has columniform fitting surface, forms spring chamber between the cylindrical receiving surface for protecgulum.
The connection of outer cover and protecgulum makes outer cover generation elasticity and plastic deformation by radial press fit, its residual stress makes outer cover fit snugly on protecgulum, in the prior art in order to ensure press fit quality, require higher for protecgulum with the fit tolerance of outer cover radial direction and between outer cover and protecgulum, relative rotation can occur, being unfavorable for the assembling of part.Therefore, a kind of new technological scheme should be provided to solve the problem.
Summary of the invention
The purpose of this utility model is: for above-mentioned deficiency, provides a kind of internal-combustion engine variable valve timing device of adjustment cam axle phase angle.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of internal-combustion engine variable valve timing device, this advance/retard mechanism comprises protecgulum and complements each other to form the outer cover of spring chamber with protecgulum, protecgulum is provided with multiple restraining groove, and outer cover is provided with the riveted joint mouth matched with the position of restraining groove.
In technique scheme, by making riveted joint mouth produce elasticity and plastic deformation to the radial pressure of riveted joint mouth, multiple projections that outer cover elasticity and plastic deformation produce fall into the restraining groove of protecgulum, limit the mutual rotation between protecgulum and outer cover.
The top of riveted joint mouth is also provided with the compensation breach for alleviating outer cover strength.
In technique scheme, compensate arranging of breach and can reduce lifting surface area and reduce the meeting with stresses of outer cover, prevent that stress is excessive causes material cracks; Reduce the quality of fit requirement between outer cover and protecgulum simultaneously.
The riveted joint mouth of outer cover is provided with two inwardly protruded guiding grooves, the circumference arc length between two guiding grooves is less than or equal to the arc length of corresponding restraining groove, and the degree of depth of guiding groove is not more than the degree of depth of restraining groove.
Restraining groove is evenly equally distributed on protecgulum circumferentially.
Realize transition by rounding between restraining groove and the circumference of protecgulum to be connected.
The arc length of restraining groove is 5-16mm, groove depth 0.5-4mm.
The quantity of restraining groove is 2-5.
Due to the application of technique scheme, the utility model compared with prior art tool has the following advantages: assembling effect and the stress requirement that just can be reached needs by the structural design of component itself, reduce the requirement to equipment and machining accuracy, save cost of production, and working efficiency.
Accompanying drawing explanation
Accompanying drawing 1 is general assembly drawing of the present utility model.
Accompanying drawing 2 is the schematic diagram of protecgulum of the present utility model.
Accompanying drawing 3 is the magnified partial view of protecgulum of the present utility model.
Accompanying drawing 4 is the schematic diagram of outer cover of the present utility model.
Accompanying drawing 5 is the plan view of outer cover of the present utility model.
Accompanying drawing 6 is fundamental diagram of the present utility model.
In above accompanying drawing: 1, protecgulum, 2, outer cover, 3, restraining groove, 4, riveted joint mouth, 5, guiding groove, 6, rounding, 7, spring chamber, 8, compensate breach.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment one:
As shown in Figures 1 to 6, a kind of internal-combustion engine variable valve timing device of the utility model, this advance/retard mechanism comprises protecgulum 1 and complements each other to form the outer cover 2 of spring chamber 7 with protecgulum 1, protecgulum 1 is provided with multiple restraining groove 3, outer cover 2 is provided with the riveted joint mouth 4 matched with the position of restraining groove 3, by making riveted joint mouth 4 produce elasticity and plastic deformation to the radial pressure of riveted joint mouth 4, multiple projections that outer cover 2 elasticity and plastic deformation produce fall into the restraining groove 3 of protecgulum, limit the mutual rotation between protecgulum 1 and outer cover 2; The top of riveted joint mouth 4 is also provided with compensation breach 8 for alleviating outer cover strength, compensates arranging of breach 8 and can reduce lifting surface area and reduce meeting with stresses of outer cover, prevents that stress is excessive causes material cracks; Reduce the quality of fit requirement between outer cover 2 and protecgulum 1 simultaneously; The circumference arc length riveted joint mouth 4 of outer cover 2 is provided with between two inwardly protruded guiding grooves, 5, two guiding grooves 5 is less than or equal to the arc length of corresponding restraining groove 3, and the degree of depth of guiding groove 5 is not more than the degree of depth of restraining groove 3; Restraining groove 3 is evenly equally distributed on protecgulum 1 circumferentially, realizes transition be connected between restraining groove 3 and the circumference of protecgulum 1 by rounding 6; The arc length of restraining groove 3 is 5mm, groove depth 0.5mm; The quantity of restraining groove 3 is 2.
Just can be reached assembling effect and the stress requirement of needs by the structural design of component itself, reduce the requirement to equipment and machining accuracy, saved cost of production, and working efficiency.
Embodiment two:
As shown in Figures 1 to 6, a kind of internal-combustion engine variable valve timing device of the utility model, this advance/retard mechanism comprises protecgulum 1 and complements each other to form the outer cover 2 of spring chamber with protecgulum 1, protecgulum 1 is provided with multiple restraining groove 3, outer cover 2 is provided with the riveted joint mouth 4 matched with the position of restraining groove 3, by making riveted joint mouth 4 produce elasticity and plastic deformation to the radial pressure of riveted joint mouth 4, multiple projections that outer cover 2 elasticity and plastic deformation produce fall into the restraining groove 3 of protecgulum, limit the mutual rotation between protecgulum 1 and outer cover 2; The top of riveted joint mouth 4 is also provided with compensation breach 8 for alleviating outer cover strength, compensates arranging of breach 8 and can reduce lifting surface area and reduce meeting with stresses of outer cover, prevents that stress is excessive causes material cracks; Reduce the quality of fit requirement between outer cover 2 and protecgulum 1 simultaneously; The circumference arc length riveted joint mouth 4 of outer cover 2 is provided with between two inwardly protruded guiding grooves, 5, two guiding grooves 5 is less than or equal to the arc length of corresponding restraining groove 3, and the degree of depth of guiding groove 5 is not more than the degree of depth of restraining groove 3; Restraining groove 3 is evenly equally distributed on protecgulum 1 circumferentially, realizes transition be connected between restraining groove 3 and the circumference of protecgulum 1 by rounding 6; The arc length of restraining groove 3 is 10mm, groove depth 2mm; The quantity of restraining groove 3 is 3.
Just can be reached assembling effect and the stress requirement of needs by the structural design of component itself, reduce the requirement to equipment and machining accuracy, saved cost of production, and working efficiency.
Embodiment three:
As shown in Figures 1 to 6, a kind of internal-combustion engine variable valve timing device of the utility model, this advance/retard mechanism comprises protecgulum 1 and complements each other to form the outer cover 2 of spring chamber with protecgulum 1, protecgulum 1 is provided with multiple restraining groove 3, outer cover 2 is provided with the riveted joint mouth 4 matched with the position of restraining groove 3, by making riveted joint mouth 4 produce elasticity and plastic deformation to the radial pressure of riveted joint mouth 4, multiple projections that outer cover 2 elasticity and plastic deformation produce fall into the restraining groove 3 of protecgulum, limit the mutual rotation between protecgulum 1 and outer cover 2; The top of riveted joint mouth 4 is also provided with compensation breach 8 for alleviating outer cover strength, compensates arranging of breach 8 and can reduce lifting surface area and reduce meeting with stresses of outer cover, prevents that stress is excessive causes material cracks; Reduce the quality of fit requirement between outer cover 2 and protecgulum 1 simultaneously; The circumference arc length riveted joint mouth 4 of outer cover 2 is provided with between two inwardly protruded guiding grooves, 5, two guiding grooves 5 is less than or equal to the arc length of corresponding restraining groove 3, and the degree of depth of guiding groove 5 is not more than the degree of depth of restraining groove 3; Restraining groove 3 is evenly equally distributed on protecgulum 1 circumferentially, realizes transition be connected between restraining groove 3 and the circumference of protecgulum 1 by rounding 6; The arc length of restraining groove 3 is 16mm, groove depth 4mm; The quantity of restraining groove 3 is 4.
Just can be reached assembling effect and the stress requirement of needs by the structural design of component itself, reduce the requirement to equipment and machining accuracy, saved cost of production, and working efficiency
The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from principle described in the utility model; can also make some improvement or replacement, these improve or replace and also should be considered as protection domain of the present utility model.
Claims (7)
1. an internal-combustion engine variable valve timing device, it is characterized in that: this advance/retard mechanism comprises protecgulum and complements each other to form the outer cover of spring chamber with protecgulum, described protecgulum is provided with multiple restraining groove, and described outer cover is provided with the riveted joint mouth matched with the position of restraining groove.
2. a kind of internal-combustion engine variable valve timing device according to claim 1, is characterized in that: the top of described riveted joint mouth is also provided with the compensation breach for alleviating outer cover strength.
3. a kind of internal-combustion engine variable valve timing device according to claim 2, it is characterized in that: the riveted joint mouth of described outer cover is provided with two inwardly protruded guiding grooves, circumference arc length between described two guiding grooves is less than or equal to the arc length of corresponding restraining groove, and the degree of depth of guiding groove is not more than the degree of depth of restraining groove.
4. a kind of internal-combustion engine variable valve timing device according to claim 3, is characterized in that: described restraining groove is evenly equally distributed on protecgulum circumferentially.
5. a kind of internal-combustion engine variable valve timing device according to claim 4, is characterized in that: realize transition by rounding between described restraining groove and the circumference of protecgulum and be connected.
6. a kind of internal-combustion engine variable valve timing device according to claim 5, is characterized in that: the arc length of described restraining groove is 5-16mm, groove depth 0.5-4mm.
7. a kind of internal-combustion engine variable valve timing device according to claim 6, is characterized in that: the quantity of described restraining groove is 2-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420708784.9U CN204283534U (en) | 2014-11-21 | 2014-11-21 | A kind of internal-combustion engine variable valve timing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420708784.9U CN204283534U (en) | 2014-11-21 | 2014-11-21 | A kind of internal-combustion engine variable valve timing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204283534U true CN204283534U (en) | 2015-04-22 |
Family
ID=52866704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420708784.9U Expired - Fee Related CN204283534U (en) | 2014-11-21 | 2014-11-21 | A kind of internal-combustion engine variable valve timing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204283534U (en) |
-
2014
- 2014-11-21 CN CN201420708784.9U patent/CN204283534U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20161121 |