CN201851187U - Combined valve spring - Google Patents
Combined valve spring Download PDFInfo
- Publication number
- CN201851187U CN201851187U CN2010205406714U CN201020540671U CN201851187U CN 201851187 U CN201851187 U CN 201851187U CN 2010205406714 U CN2010205406714 U CN 2010205406714U CN 201020540671 U CN201020540671 U CN 201020540671U CN 201851187 U CN201851187 U CN 201851187U
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- Prior art keywords
- spring
- valve spring
- inner ring
- valve
- ring
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Abstract
The utility model discloses a combined valve spring. The existing valve spring inclines and is lack of elasticity in moving. In the utility model, a spiral inner-ring tension support spring is tightly matched at the inner side of a spiral outer-ring valve spring; the rotating directions of the inner-ring tension support spring and the outer-ring valve spring are opposite; the inner-ring tension support spring is formed by winding a spring steel band with a rectangular section; and the width direction of the rectangular section is the same as the diameter direction of the inner-ring tension support spring, and the length direction of the rectangular section is the same as that of the inner-ring tension support spring. In the combined valve spring, by the tension and the axial guiding and supporting functions of the inner-ring tension support spring on the outer-ring valve spring, the installation space for the inner diameter of the combined valve spring is satisfied simultaneously when the rigidity of the whole combined valve spring is enhanced, the whole combined valve spring is ensured to maintain vertical movement, a valve head does not deflect on a valve seat, rotating torsion generated in the movement process of the outer-ring valve spring is balanced, and resonance is prevented.
Description
Technical field
The utility model belongs to spring, a kind of specifically combination valve spring.
Background technique
The valve group is the main components in the engine valve actuating mechanism.The valve group is made up of valve, valve guide bushing, valve seat, valve spring etc., and wherein valve spring is a core part.
Valve spring requires the both ends of the spring face perpendicular with the center line of valve stem, with assurance valve head deflection not on valve seat.But spring must have perpendicularity deviation after because of the both ends of the surface grinding, and perpendicularity deviation can cause spring to produce inclination in movement process.And the elastic force of valve spring need be enough to overcome the motion inertia force of valve and driving component thereof, makes that valve can be opened rapidly, closure, is pressed on the valve seat to guarantee valve.
Traditional high elasticity valve spring is to adopt the round wire of inside and outside combination directly to design, and the inner diameter volume of this design is too little, is difficult to during assembling meet the requirements.
The model utility content
The technical assignment of the technical problems to be solved in the utility model and proposition is to overcome existing valve spring to produce defectives such as inclination, elastic force deficiency in movement process, and a kind of combination valve spring is provided.
The utility model is that the technological scheme that technical problem adopted of the above-mentioned proposition of solution is: a kind of combination valve spring, it is characterized in that: at the inboard close-fitting one helical inner ring tensioner supported spring of helical outer ring valve spring, described inner ring tensioner supported spring is opposite with the rotation direction of outer ring valve spring, described inner ring tensioner supported spring is reeled by the rectangular cross-section Spring Steel Band and is made, and the width direction of described rectangular cross-section is consistent with the diametric(al) of inner ring tensioner supported spring, and the length direction of described rectangular cross-section is consistent with the length direction of inner ring tensioner supported spring.
As the optimization technique measure of technique scheme, the Elongation of described rectangular cross-section is 6-15.To guarantee enough inner diameter volume that has of combination valve spring.
During concrete enforcement, can described inner ring tensioner supported spring be assemblied in the inboard close-fitting of realizing of outer ring valve spring by interference fit.
The plane vertical with the center line of outer ring valve spring also tightly and with its end face made in the two end part of described outer ring valve spring; The both ends of the surface of described inner ring tensioner supported spring are made the vertical plane of center line with inner ring tensioner supported spring; The both ends of the surface of described inner ring tensioner supported spring are positioned at the inboard of the both ends of the surface of described outer ring valve spring.The perpendicular relation of center line that can guarantee the both ends of the surface of outer ring valve spring and valve stem is not thus disturbed by the both ends of the surface of inner ring tensioner supported spring.
The beneficial effects of the utility model are: inboard close-fitting (especially realizing close-fitting by interference fit) the helical inner ring tensioner supported spring by in helical outer ring valve spring makes inner ring tensioner supported spring play the tensioner effect to the outer ring valve spring; Inner ring tensioner supported spring is reeled by the rectangular cross-section Spring Steel Band and is made, especially the Elongation of rectangular cross-section is 6-15, can make inner ring tensioner supported spring that the outer ring valve spring is played axially directed supporting effect, and can when increasing whole combination valve spring rigidity, can also satisfy the internal diameter installing space, keep vertical motion in the time of satisfying whole combination valve spring axial displacement campaign, be unlikely to produce, to guarantee valve head deflection not on valve seat because of perpendicularity deviation; The rotary torsion that the tensioner supporting effect of inner ring tensioner supported spring can balance outer ring valve spring produces in movement process; Inner ring tensioner supported spring is opposite with the rotation direction of outer ring valve spring, can change the natural frequency of vibration of outer ring valve spring when improving outer ring valve spring elastic force, prevents resonance.
Description of drawings
Fig. 1 is the schematic representation of outer ring of the present utility model valve spring.
Fig. 2 is the schematic representation of inner ring tensioner supported spring of the present utility model.
Fig. 3 is the schematic representation of combination valve spring of the present utility model.
Number in the figure explanation: 1-outer ring valve spring, 2, the end face of 3-outer ring valve spring, 4-inner ring tensioner supported spring, 5, the end face of 6-inner ring tensioner supported spring, 7-makes up valve spring; The internal diameter of D1-outer ring valve spring, the external diameter of D2-inner ring tensioner supported spring, the cross-sectional length of L-rectangular cross-section Spring Steel Band, the cross-sectional width of t-rectangular cross-section Spring Steel Band, the center line of m-m-outer ring valve spring, the center line of n-n-inner ring tensioner supported spring.
Embodiment
Below in conjunction with Figure of description the utility model is done and to be specified.
Combination valve spring 7 of the present utility model as shown in Figure 3, be that inboard close-fitting in helical outer ring valve spring 1 shown in Figure 1 (is especially realized close-fitting by interference fit, be the outer diameter D 2 of the inside diameter D 1 of outer ring valve spring 1 less than inner ring tensioner supported spring) a helical inner ring tensioner supported spring 4 shown in Figure 2,4 pairs of outer ring valve spring 1 of inner ring tensioner supported spring play the tensioner effect; Inner ring tensioner supported spring 4 is opposite with the rotation direction of outer ring valve spring 1, can change the natural frequency of vibration of outer ring valve spring 1 when improving outer ring valve spring 1 elastic force, prevents resonance; Inner ring tensioner supported spring 4 is reeled by the rectangular cross-section Spring Steel Band and is made, especially the Elongation of rectangular cross-section (ratio of length and width) is 6-15, and the width t direction of rectangular cross-section is consistent with the diametric(al) of inner ring tensioner supported spring 4, the length L direction of rectangular cross-section is consistent with the length direction of inner ring tensioner supported spring 4, make 4 pairs of outer ring valve spring 1 of inner ring tensioner supported spring play axially directed supporting effect, and can when increasing whole combination valve spring 7 rigidity, can also satisfy the internal diameter installing space, keep vertical motion in the time of satisfying whole combination valve spring axial displacement campaign, be unlikely to produce, to guarantee valve head deflection not on valve seat because of perpendicularity deviation.And, the rotary torsion that the tensioner supporting effect of inner ring tensioner supported spring can balance outer ring valve spring produces in movement process.
Further, the plane vertical with the center line m-m of outer ring valve spring 1 also tightly and with its end face 2,3 made in the two end part of outer ring valve spring 1; With respect to outer ring valve spring 1, the two ends of inner ring tensioner supported spring 4 then can keep the nature helical, only the both ends of the surface 5,6 of inner ring tensioner supported spring 4 need be made the vertical plane of center line n-n with inner ring tensioner supported spring 4; The both ends of the surface 5,6 of inner ring tensioner supported spring 4 are positioned at the inboard of the both ends of the surface 2,3 of outer ring valve spring 1.The perpendicular relation of center line that can guarantee the both ends of the surface of outer ring valve spring and valve stem is not thus disturbed by the both ends of the surface of inner ring tensioner supported spring.
As an object lesson: inner ring tensioner supported spring 4 usefulness 1.0 * 6.3/62Si2Mn/YB-T 5063 makes (width and the length of 1.0 * 6.3 expression material section, unit is mm) for material; External diameter 22.8+0.4mm; Length 51mm; Number of total coils is 4 circles; Rotation direction is left-handed.Outer ring valve spring usefulness/55CrSi-VD/GB18983 is that material is made (wherein the diameter of Φ 4.8 material section, unit is mm); Internal diameter 22.0 ± 0.41mm; Length is 53 ± 0.51mm; Total 6.75 circles, number of active coils are 4.75 circles; Rotation direction is dextrorotation.
Claims (4)
1. make up valve spring (7), it is characterized in that: at the inboard close-fitting one helical inner ring tensioner supported spring (4) of helical outer ring valve spring (1), described inner ring tensioner supported spring (4) is opposite with the rotation direction of outer ring valve spring (1), described inner ring tensioner supported spring (4) is reeled by the rectangular cross-section Spring Steel Band and is made, and the width of described rectangular cross-section (t) direction is consistent with the diametric(al) of inner ring tensioner supported spring (4), and the length of described rectangular cross-section (L) direction is consistent with the length direction of inner ring tensioner supported spring (4).
2. combination valve spring according to claim 1 (7) is characterized in that: the Elongation of described rectangular cross-section is 6-15.
3. combination valve spring according to claim 1 and 2 (7) is characterized in that: described close-fitting is by interference fit described inner ring tensioner supported spring (4) to be assemblied in outer ring valve spring (1) inboard.
4. combination valve spring according to claim 1 (7) is characterized in that: the two end part of described outer ring valve spring (1) are also tight and its end face (2,3) made the vertical plane of center line (m-m) with outer ring valve spring (1); The both ends of the surface of described inner ring tensioner supported spring (4) (5,6) are made the vertical plane of center line (n-n) with inner ring tensioner supported spring (4); The both ends of the surface of described inner ring tensioner supported spring (4) (5,6) are positioned at the inboard of the both ends of the surface (2,3) of described outer ring valve spring (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205406714U CN201851187U (en) | 2010-09-25 | 2010-09-25 | Combined valve spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205406714U CN201851187U (en) | 2010-09-25 | 2010-09-25 | Combined valve spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201851187U true CN201851187U (en) | 2011-06-01 |
Family
ID=44093585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205406714U Expired - Fee Related CN201851187U (en) | 2010-09-25 | 2010-09-25 | Combined valve spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201851187U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162382A (en) * | 2010-09-25 | 2011-08-24 | 浙江美力科技股份有限公司 | Inner-ring-tension supported combination valve spring |
| CN103423348A (en) * | 2013-08-19 | 2013-12-04 | 苏州市胜能弹簧五金制品有限公司 | Spring |
| CN104533999A (en) * | 2015-01-30 | 2015-04-22 | 王卫华 | Elliptical compression spring structure and upholstered furniture elastic structure thereof |
-
2010
- 2010-09-25 CN CN2010205406714U patent/CN201851187U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162382A (en) * | 2010-09-25 | 2011-08-24 | 浙江美力科技股份有限公司 | Inner-ring-tension supported combination valve spring |
| CN103423348A (en) * | 2013-08-19 | 2013-12-04 | 苏州市胜能弹簧五金制品有限公司 | Spring |
| CN104533999A (en) * | 2015-01-30 | 2015-04-22 | 王卫华 | Elliptical compression spring structure and upholstered furniture elastic structure thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20110925 |