CN100544189C - Micro-vibration isolator used for spring combined crystal oscillator - Google Patents
Micro-vibration isolator used for spring combined crystal oscillator Download PDFInfo
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- CN100544189C CN100544189C CNB2007100248308A CN200710024830A CN100544189C CN 100544189 C CN100544189 C CN 100544189C CN B2007100248308 A CNB2007100248308 A CN B2007100248308A CN 200710024830 A CN200710024830 A CN 200710024830A CN 100544189 C CN100544189 C CN 100544189C
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- vibration isolator
- plate
- sliding sleeve
- upper supporting
- crystal oscillator
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Abstract
The micro-vibration isolator used for spring combined crystal oscillator employing changes the structural parameters of steel wire rope assembly and change is gone up or the elastic characteristic of following steel net pad composes in parallel elastic parts; The size of regulating the damper resistance simultaneously constitutes the crystal oscillator vibration isolator with different elastic damping characteristics with spring assembly.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), split ring (7), conical ring (11) and following friction plate (82) are formed.
Description
Technical field
The present invention 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 technology
Crystal oscillator is the core component of electronic message unit frequency reference (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 operate as normal.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 invention is to provide a kind of micro-vibration isolator used for spring combined crystal oscillator, employing changes the structural parameters of steel wire rope assembly and change is gone up or the elastic characteristic of following steel net pad composes in parallel elastic parts; The damper that adopts the damping force adjustable size simultaneously and be complementary with elastic parts, the crystal oscillator vibration isolator that common formation has different elastic damping characteristics.
Technical 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.
Micro-vibration isolator used for spring combined crystal oscillator of the present invention 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, split 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 regulating sleeve is positioned at the outside of sliding sleeve and is connected with upper supporting plate, and in the space between regulating 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 steel wire rope spring assemblies are respectively loaded onto in both sides between lower carrier plate and upper supporting plate.
Characteristics of the present invention are:
(1) length L of the diameter d by changing four steel wire ropes in the steel wire rope assembly and its Free Transform (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 cross 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＝βmg (N) (2)
β-environmental coefficient in the formula (land with, empty with, sea with)
M-crystal oscillator quality
G-acceleration of gravity
The course of work:
(1) electronic equipment is when delivery vehicle (vehicle, naval vessel, aircraft) is gone up work, the three-axial vibration of delivery vehicle is excited by impact to be delivered to elastic parts (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, regulating sleeve] then; Damping force is by the sliding sleeve in the damper assembly, split 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) regulating 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) universal architecture spare is many.In totally 15 parts of whole, universal architecture spare has 12, accounts for 80%;
(2) governing loop is many, can make the parameter characteristic of crystal oscillator vibration isolator reach consistency and higher reliability preferably by pre-debugging of static state and dynamic debugging.
Description of drawings
Fig. 1 a is a micro-vibration isolator used for spring combined crystal oscillator structure vertical view of the present invention.
Fig. 1 b is along the generalized section of AOA direction among Fig. 1 a; Lower carrier plate 1, middle slide plate 2, regulating sleeve 3, upper supporting plate 4 are wherein arranged, go up slide plate 5, go up steel net pad 6 (K
1), split 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), steel wire rope assembly 15 (K
3), tubular rivet B1, free height H.。
Fig. 2 is spring assembly of the present invention 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 of the present invention with steel wire rope spring assembly 15 of accurate zero stiffness characteristic.Wherein have: steel wire rope B
2, connector B
3, wirerope diameter D, rope capacity L.
Embodiment
Micro-vibration isolator used for spring combined crystal oscillator of the present invention 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, split 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, regulating sleeve 3 is positioned at the outside of sliding sleeve 12 and is connected with upper supporting plate 4, and in the space between regulating 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 steel wire rope spring assemblies 15 are respectively loaded onto in both sides between lower carrier plate 1 and upper supporting plate 4.
Steel 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 split 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 regulating 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 regulating 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 steel wire rope elastic partss of tubular rivet B1 riveted joint.
Assembly method
In the inner chamber of upper supporting plate 4, put into slide plate 5 and upper 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 surface, be unified into individual components with regulating 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, split 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 thread connection.
Between upper supporting plate 4 and lower carrier plate 1, rivet four steel wire rope elastic partss 15, form whole of vibration isolator.
Claims (2)
1, a kind of micro-vibration isolator used for spring combined crystal oscillator, it is characterized in that this vibration isolator is the axle center with joint bolt (10), 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), split 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), regulating sleeve (3) is positioned at the outside of sliding sleeve (12) and is connected with upper supporting plate (4), in the space between regulating 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 steel wire rope spring assemblies (15) are respectively loaded onto in both sides between lower carrier plate (1) and upper supporting plate (4).
2, micro-vibration isolator used for spring combined crystal oscillator according to claim 1 is characterized in that steel 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 |
|---|---|---|---|
| CNB2007100248308A CN100544189C (en) | 2007-06-29 | 2007-06-29 | Micro-vibration isolator used for spring combined crystal oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100248308A CN100544189C (en) | 2007-06-29 | 2007-06-29 | Micro-vibration isolator used for spring combined crystal oscillator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101110566A CN101110566A (en) | 2008-01-23 |
| CN100544189C true CN100544189C (en) | 2009-09-23 |
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ID=39042494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100248308A Active CN100544189C (en) | 2007-06-29 | 2007-06-29 | Micro-vibration isolator used for spring combined crystal oscillator |
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| CN (1) | CN100544189C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139760A (en) * | 2018-09-12 | 2019-01-04 | 西安交通大学 | A kind of quasi-zero stiffness vibration isolators of positive and negative Stiffness |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104158492B (en) * | 2014-07-23 | 2017-04-26 | 西安空间无线电技术研究所 | Oscillation isolation device for satellite borne temperature-compensation crystal oscillator |
-
2007
- 2007-06-29 CN CNB2007100248308A patent/CN100544189C/en active Active
Non-Patent Citations (2)
| Title |
|---|
| 舰船电子装备隔振系统和背架隔振器研究. 季馨.船舶工程，第2期. 1996 |
| 舰船电子装备隔振系统和背架隔振器研究. 季馨.船舶工程，第2期. 1996 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139760A (en) * | 2018-09-12 | 2019-01-04 | 西安交通大学 | A kind of quasi-zero stiffness vibration isolators of positive and negative Stiffness |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101110566A (en) | 2008-01-23 |
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