CN201053469Y - Crystal oscillation isolator - Google Patents
Crystal oscillation isolator Download PDFInfo
- Publication number
- CN201053469Y CN201053469Y CNU2007200402448U CN200720040244U CN201053469Y CN 201053469 Y CN201053469 Y CN 201053469Y CN U2007200402448 U CNU2007200402448 U CN U2007200402448U CN 200720040244 U CN200720040244 U CN 200720040244U CN 201053469 Y CN201053469 Y CN 201053469Y
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- CN
- China
- Prior art keywords
- plate
- vibration isolator
- sliding sleeve
- upper supporting
- slide plate
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- 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.)
- Expired - Lifetime
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- Vibration Prevention Devices (AREA)
- Vibration Dampers (AREA)
Abstract
A crystal oscillation vibration isolator changes the structural parameters of a wire rope component and the elastic characteristics of an upper steel wire gauze pad or a lower wire steel gauze pad to from an elastic component through parallel connection; meanwhile, the resistance of a damper is adjusted to be combined with a spring, thereby forming the crystal oscillation vibration isolator with different elastic damping characteristics. The vibration isolator takes a connecting screw (10) as the axes, wherein, an upper support plate (4) is positioned at the upper part of the vibration isolator, while a lower support plate (1) is positioned at the lower part of the vibration isolator; all parts are positioned between the upper support plate (4) and the lower support plate (1); the outside of the connecting screw (10) is provided with a slide bushing (12); moreover, the inside of the lower cavity of the slide bushing (12) is provided with an adjustable damper component consisting of a spacer sleeve (9), an upper friction plate (81), the connecting screw (10), a split ring (7), a conical ring (11) and a lower friction plate (82).
Description
Technical field
The utility model is the special-purpose vibration isolator of crystal oscillator (hereinafter to be referred as crystal oscillator) in a kind of electronic equipment frequency source, belongs to electronic equipment vibration isolation buffering device field.
Background technique
Crystal oscillator is the core component of electronic message unit frequency primary standard (frequency source), and the vibration of electronic device carrier, impact will cause that crystal oscillator frequency drift and electrical property descend, and this influence becomes especially outstanding in its sensitive frequency and acceleration sensitive direction.Is one of otherwise effective technique measure with electronic device carrier vibratory impulse magnitude by the level that vibration isolator is reduced to crystal oscillator energy proper functioning.Simultaneously, because crystal oscillator itself is in light weight, volume is little, its vibration isolation buffering device must be the independent insulator that can bear three direction vibrations, impact.
Summary of the invention
Technical problem: the purpose of this utility model provides a kind of crystal oscillator vibration isolator, and employing changes the structural parameter of wire rope assembly and change is gone up or the elastic characteristic of following steel net pad composes in parallel elastic component; The damper that adopts the damping force adjustable size simultaneously and be complementary with elastic component, the crystal oscillator vibration isolator that common formation has different elastic damping characteristics.
Technological scheme: theory of vibration isolation shows that the vibration isolator with what different carriers environment or different model crystal oscillator should have the elastic damping characteristic that adapts with it.
Crystal oscillator vibration isolator of the present utility model is characterized in that this vibration isolator is the axle center with the joint bolt, and upper supporting plate is positioned at the top of vibration isolator, and lower carrier plate is positioned at the bottom of vibration isolator, and all parts are between upper supporting plate and lower carrier plate; The outside at joint bolt is provided with sliding sleeve, is provided with by spacer sleeve, upper friction plate the adjustable damper assembly that joint bolt, trip ring, conical ring and following friction plate are formed in the cavity of resorption of sliding sleeve; The bottom of sliding sleeve is connected with lower carrier plate, and adjustment sleeve is positioned at the outside of sliding sleeve and is connected with upper supporting plate, and in the space between adjustment sleeve and sliding sleeve, its top is provided with middle slide plate, and its underpart is provided with down slide plate, is provided with ring-like steel net pad down between middle slide plate and following slide plate; In the space between sliding sleeve and upper supporting plate, its top is provided with slide plate, is provided with steel net pad in the space between last slide plate and sliding sleeve; Two wire rope spring assemblies are respectively loaded onto in both sides between lower carrier plate and upper supporting plate.
Characteristics of the present utility model are:
(1) length L of the diameter d by changing four wire rope in the wire rope assembly and its free deformation (Fig. 3 a) realize adjustable, have an accurate zero stiffness characteristic K
1Spring (Fig. 3 b);
(2) by change going up steel net pad, parameter such as steel wire diameter realizes K in the sectional shape of following steel wire steel pad, charging quantity, mesh size or the steel wire
2And K
3Adjustable.
(3) determine global stiffness K according to mechanical environment such as the vibration of the quality of crystal oscillator, carrying direction, working material, impact and the required attenuation of crystal oscillator sensitive frequency point
TAnd damping force F
μ
K
T＝K
1+K
2+K
3 (N/M) (1)
F
μ＝βm?g (N) (2)
β-environmental coefficient in the formula (land with, empty with, sea with)
M-crystal oscillator quality
G-gravity accleration
Working procedure:
(1) electronic equipment is when launch vehicle (vehicle, naval vessel, aircraft) is gone up work, the three-axial vibration of launch vehicle is excited by impact to be delivered to elastic component (Fig. 3) by the lower carrier plate assembly [lower carrier plate and sliding sleeve] that links to each other with carrier, passes to the crystal oscillator that links to each other with upper supporting plate by upper supporting plate assembly [upper supporting plate, adjustment sleeve] then; Damping force is by the sliding sleeve in the damper assembly, trip ring, little slide plate, conical ring, spacer sleeve, crystal oscillator that attachment screw passes to link to each other with upper supporting plate;
(2) screw (or unscrewing) adjustment sleeve, change the precompressed amount of upper and lower steel net pad, can reach and regulate K
2And K
3Value and free height H
0Purpose;
(3) screw (or unscrewing) attachment screw, can reach the adjusting damping force F
μThe purpose of value.
Beneficial effect:
(1) General Construction spare is many.In totally 15 parts of whole, General Construction spare has 12, accounts for 80%;
(2) governing loop is many, can make the parameter characteristic of crystal oscillator vibration isolator reach conformity and higher reliability preferably by pre-debugging of static state and dynamic debugging.
Description of drawings
Fig. 1 a is a crystal oscillator vibration isolator structure plan view of the present utility model.
Fig. 1 b is along the generalized section of AOA direction among Fig. 1 a; Lower carrier plate 1, middle slide plate 2, adjustment sleeve 3, upper supporting plate 4 are wherein arranged, go up slide plate 5, go up steel net pad 6 (K
1), trip ring 7, upper friction plate 81, friction plate 82, spacer sleeve 9, joint bolt 10, conical ring 11, sliding sleeve 12, slide plate 13, steel net pad 14 (K down down down
2), wire rope assembly 15 (K
3), tubular-shank rivet B1, free height H.。
Fig. 2 is the utility model spring assembly and damper mechanical model, wherein has: F μ: damper assembly; M: crystal oscillator quality; K: spring assembly (K=K
1+ K
2+ K
3).
Fig. 3 is that (Fig. 3 a) and elastic characteristic curve (Fig. 3 b) for the structural representation that the utlity model has the wire rope spring assembly 15 of accurate zero stiffness characteristic.Wherein have: wire rope B
2, connecting head B
3, wirerope diameter D, rope capacity L.
Embodiment
Crystal oscillator vibration isolator of the present utility model is the axle center with joint bolt 10, and upper supporting plate 4 is positioned at the top of vibration isolator, and lower carrier plate 1 is positioned at the bottom of vibration isolator, and all parts are between upper supporting plate 4 and lower carrier plate 1; In the outside of joint bolt 10, be provided with sliding sleeve 12, in the cavity of resorption of sliding sleeve 12, be provided with by spacer sleeve 9, upper friction plate 81 the adjustable damper assembly that joint bolt 10, trip ring 7, conical ring 11 and following friction plate 82 are formed; The bottom of sliding sleeve 12 is connected with lower carrier plate 1, adjustment sleeve 3 is positioned at the outside of sliding sleeve 12 and is connected with upper supporting plate 4, and in the space between adjustment sleeve 3 and sliding sleeve 12, its top is provided with middle slide plate 2, its underpart is provided with down slide plate 13, is provided with ring-like steel net pad 14 down between middle slide plate 2 and following slide plate 13; In the space between sliding sleeve 12 and upper supporting plate 4, its top is provided with slide plate 5, is provided with steel net pad 6 in the space between last slide plate 5 and sliding sleeve 12; Two wire rope spring assemblies 15 are respectively loaded onto in both sides between lower carrier plate 1 and upper supporting plate 4.
Wire rope spring assembly 15 has accurate zero stiffness characteristic, can store more impact energy in less space.
The standing part of this vibration isolator is made up of lower carrier plate 1 and sliding sleeve 12, and links by lower carrier plate 1 and basis.
In sliding sleeve 12 cavity of resorptions, the damper assembly that is also linked with joint bolt 10 and upper supporting plate 4 by trip ring 7, upper friction plate 81, following friction plate 82, spacer sleeve 9, conical ring 11 is housed.Regulate joint bolt and can change the damping force size.
Between sliding sleeve 12 upper ends and upper supporting plate 4, the spring k that is made up of last slide plate 5 and last steel net pad 6 is housed
2Between sliding sleeve 12 lower ends and adjustment sleeve 3, the spring k that is made up of middle slide plate 2, following slide plate 13 and following steel net pad 14 is housed
3, regulate spacing between adjustment sleeve 3 and the upper supporting plate 4, can obtain needed rigidity value.
With lower carrier plate 1 screw in sliding sleeve 12 fixing after, between lower carrier plate 1 and upper supporting plate 4,, constitute whole of vibration isolator with four wire rope elastic components of tubular-shank rivet B1 riveted joint.
Assembly method
In the inner chamber of upper supporting plate 4, put into slide plate 5 and upper-end surface groove and inserted the sliding sleeve 12 of steel net pad 6, after slide plate 2, following steel net pad 14 and following slide plate 13 are put in the sliding sleeve lower end surface, be unified into individual components with adjustment sleeve 3 and upper supporting plate 4, be adjusted to required k
2, k
3Solidify the value back.Lower carrier plate 1 is screwed in sliding sleeve 12 backs to be solidified.
Pack into successively on joint bolt down friction plate 82, conical ring 11, trip ring 7, upper friction plate 81 and spacer sleeve 9 link with upper supporting plate 4 after putting sliding sleeve 12 lower inner cavities into, form damper assembly.After being adjusted to required damping force, partly solidified in scyewed joint.
Between upper supporting plate 4 and lower carrier plate 1, rivet four wire rope elastic components 15, form whole of vibration isolator.
Claims (2)
1. a crystal oscillator vibration isolator is characterized in that this vibration isolator is the axle center with joint bolt (10), and upper supporting plate (4) is positioned at the top of vibration isolator, and lower carrier plate (1) is positioned at the bottom of vibration isolator, and all parts are positioned between upper supporting plate (4) and the lower carrier plate (1); The outside in joint bolt (10), be provided with sliding sleeve (12), in the cavity of resorption of sliding sleeve (12), be provided with by spacer sleeve (9), upper friction plate (81) the adjustable damper assembly that joint bolt (10), trip ring (7), conical ring (11) and following friction plate (82) are formed; The bottom of sliding sleeve (12) is connected with lower carrier plate (1), adjustment sleeve (3) is positioned at the outside of sliding sleeve (12) and is connected with upper supporting plate (4), in the space between adjustment sleeve (3) and sliding sleeve (12), its top is provided with middle slide plate (2), its underpart is provided with down slide plate (13), is provided with ring-like steel net pad (14) down between middle slide plate (2) and following slide plate (13); In the space between sliding sleeve (12) and upper supporting plate (4), its top is provided with slide plate (5), is provided with steel net pad (6) in the space between last slide plate (5) and sliding sleeve (12); Two wire rope spring assemblies (15) are respectively loaded onto in both sides between lower carrier plate (1) and upper supporting plate (4).
2. according to claims 1 described crystal oscillator vibration isolator, it is characterized in that wire rope spring assembly (15) has accurate zero stiffness characteristic, can store more impact energy at less deformation space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200402448U CN201053469Y (en) | 2007-06-29 | 2007-06-29 | Crystal oscillation isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200402448U CN201053469Y (en) | 2007-06-29 | 2007-06-29 | Crystal oscillation isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201053469Y true CN201053469Y (en) | 2008-04-30 |
Family
ID=39393132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200402448U Expired - Lifetime CN201053469Y (en) | 2007-06-29 | 2007-06-29 | Crystal oscillation isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201053469Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632992A (en) * | 2014-06-15 | 2015-05-20 | 上海理工大学 | Damping component, crystal oscillation device, frequency synthesizer and electronic device |
| CN106763472A (en) * | 2017-01-20 | 2017-05-31 | 南京捷诺环境技术有限公司 | Boxlike crystal oscillator vibratory impulse isolator and its Method of Adjustment |
-
2007
- 2007-06-29 CN CNU2007200402448U patent/CN201053469Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632992A (en) * | 2014-06-15 | 2015-05-20 | 上海理工大学 | Damping component, crystal oscillation device, frequency synthesizer and electronic device |
| CN106763472A (en) * | 2017-01-20 | 2017-05-31 | 南京捷诺环境技术有限公司 | Boxlike crystal oscillator vibratory impulse isolator and its Method of Adjustment |
| CN106763472B (en) * | 2017-01-20 | 2023-11-03 | 南京捷诺环境技术有限公司 | Vibration impact isolator for cassette crystal oscillator and mounting and adjusting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20070629 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |