CN106678267B - A kind of combined shock absorber with three rank intrinsic frequencies - Google Patents
A kind of combined shock absorber with three rank intrinsic frequencies Download PDFInfo
- Publication number
- CN106678267B CN106678267B CN201611040532.3A CN201611040532A CN106678267B CN 106678267 B CN106678267 B CN 106678267B CN 201611040532 A CN201611040532 A CN 201611040532A CN 106678267 B CN106678267 B CN 106678267B
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- China
- Prior art keywords
- plate
- disc spring
- vibration isolation
- lower disc
- spring
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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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/046—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means using combinations of springs of different kinds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
- F16F15/085—Use of both rubber and metal springs
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a kind of combined shock absorbers with three rank intrinsic frequencies, belong to the vibration vibration isolation field of precision instrument and equipment.It includes the vibration isolation ontology of the equipment platform that can install device for vibration insutation, connection equipment platform and the vibration isolation bar of pressure plate, the upper disc spring being installed in above pressure plate, the lower disc spring being installed in below pressure plate, the free rolling plate for being installed in lower disc spring bottom, the shaft bearing plate for being installed with linear bearing, the fixed plate for being installed with rubber cylinder, connection shaft bearing plate and fixed plate, the metal coil spring being installed between free rolling plate and fixed plate；Vibration isolation ontology is the hollow cylinder that cross section is annulus；Free rolling plate is surrounded by one group of ball, and ball can be rolled along the inner surface of vibration isolation ontology；Metal coil spring is installed in the outside of rubber cylinder.The present invention be it is a kind of can according to dynamic excitation signal, realize system frequency significant changes damper.
Description
Technical field
The present invention relates to the vibration vibration isolation fields of precision instrument and equipment, refer in particular to a kind of combination with three rank intrinsic frequencies
Formula damper.
Background technology
Electronic equipment can not only bear the wider arbitrary excitation of frequency range, but also also occur that one in transportational process
Quantitative large impact phenomenon.Existing widely used damper mainly has rubber shock absorber, metal isolator, steel wire rope vibration isolation
Device and resonance free peak damp type vibration isolator, these vibration isolators are after installing vibration isolation object, although the intrinsic frequency of system is not
It can occur significantly to change, i.e., select big rigidity or small rigidity vibration isolator generally according to surface conditions.Therefore, in order to preferably protect
Sophisticated electronics are protected, realizes at random and impacts common vibration isolation, design a kind of combined shock absorber with three rank intrinsic frequencies
With important practical value.
Invention content
The technical issues of present invention need to solve be：For technical problem of the existing technology, the present invention provides a kind of energy
Enough according to dynamic excitation signal, the combined shock absorber with three rank intrinsic frequencies of realization system frequency significant changes.
To solve the above-mentioned problems, solution proposed by the present invention is：A kind of combined type with three rank intrinsic frequencies
Damper, including can install the equipment platform of device for vibration insutation, the connection equipment platform and pressure plate vibration isolation bar, be installed in
Upper disc spring above the pressure plate, the lower disc spring being installed in below the pressure plate, be installed in the lower disc spring bottom from
By rolling plate, the shaft bearing plate that is installed with linear bearing, the fixed plate for being installed with rubber cylinder, the connection shaft bearing plate with it is described solid
The vibration isolation ontology of fixed board, the metal coil spring being installed between the free rolling plate and the fixed plate.
The vibration isolation ontology of the present invention is the hollow cylinder that cross section is annulus；The surrounding of the free rolling plate is set
There are one group of ball, the ball that can be rolled along the inner surface of the vibration isolation ontology；The metal coil spring is installed in described
The outside of rubber cylinder；The vibration isolation bar passes through the linear bearing.
The upper disc spring and the lower disc spring are metal butterfly spring, have identical rigidity force diagram；Institute
The stiffness curve for stating lower disc spring is that two sections of oblique lines form, and wherein the slope of second segment oblique line is the 20-30 of first segment oblique line slope
Times.
The corresponding power of turning point of the lower disc spring stiffness curve is equal to the gravity of the device for vibration insutation；The metal spiral
The rigidity of spring is the one third of the lower disc spring maximum rigidity；The rubber cylinder does not connect with the metal coil spring
It touches, no friction.
The rigidity of the rubber cylinder of the present invention is 5-7 times of the metal coil spring rigidity；Install device for vibration insutation
Afterwards, the initial intrinsic frequency of whole system is 2-3Hz, and the lower disc spring deforms less than S1, that is, is in for the second oblique line stage；Institute
Free rolling plate is stated to bottom offset within the scope of S1-S2, the intrinsic frequency of system is fn2=8Hz；The free rolling plate is downward
Within the scope of S2-S3, the intrinsic frequency of system is fn3=20Hz for displacement.
Compared with prior art, the present invention having the following advantages that and advantageous effect：
(1) a kind of combined shock absorber with three rank intrinsic frequencies of the invention is equipped with upper disc spring and lower disc spring so that
System has minimum intrinsic frequency in small deformation, can effectively realize the vibration isolation of low frequency signal.
(2) a kind of combined shock absorber with three rank intrinsic frequencies of the invention, is additionally provided with metal coil spring and rubber
Glue cylinder so that system has medium and higher intrinsic frequency, can realize arbitrary excitation under medium deformation and large deformation
With large impact vibration isolation.It follows that structure of the invention is reasonable, extraneous stimulus frequency signal can be directed to and realize intrinsic frequency automatically
Rate switches, to have more superior vibration isolating effect.
Description of the drawings
Fig. 1 is a kind of rigidity property curve graph of combined shock absorber with three rank intrinsic frequencies of the present invention.
Fig. 2 is a kind of frequency characteristic curve diagram of combined shock absorber with three rank intrinsic frequencies of the present invention.
Fig. 3 is a kind of principle schematic diagram of combined shock absorber with three rank intrinsic frequencies of the present invention.
In figure, 1-device for vibration insutation；2-equipment platforms；3-vibration isolation bars；4-shaft bearing plates；41-linear bearings；5-vibration isolation
Ontology；6-pressure plates；7-upper disc springs；8-free rolling plates；81-balls；9-lower disc springs；10-metal coil springs；
11-rubber cylinders；12-fixed plates.
Specific implementation mode
Below with reference to the drawings and specific embodiments, invention is further described in detail.
A kind of combined shock absorber with three rank intrinsic frequencies shown in Figure 3, of the invention, it includes that can install
The equipment platform 2 of device for vibration insutation 1, the vibration isolation bar 3 of connection equipment platform 2 and pressure plate 6, the upper dish for being installed in 6 top of pressure plate
Spring 7, the free rolling plate 8 for being installed in 9 bottom of lower disc spring, is installed with linear bearing at the lower disc spring 9 for being installed in 6 lower section of pressure plate
Vibration isolation ontology 5, the installing of 41 shaft bearing plate 4, the fixed plate 12 for being installed with rubber cylinder 11, connection shaft bearing plate 4 and fixed plate 12
Metal coil spring 10. between free rolling plate 8 and fixed plate 12
In conjunction with Fig. 1, Fig. 2 and Fig. 3, vibration isolation ontology 5 is the hollow cylinder that cross section is annulus；The four of free rolling plate 8
Week is equipped with one group of ball, and ball can be rolled along the inner surface of vibration isolation ontology 5；Metal coil spring 10 is installed in rubber cylinder 11
Outside；Vibration isolation bar 3 passes through linear bearing 41；Upper disc spring 7 and lower disc spring 9 are metal butterfly spring, are had identical
Rigidity force diagram.
In conjunction with Fig. 1, Fig. 2 and Fig. 3, the stiffness curve of lower disc spring 9 is that two sections of oblique lines form, wherein the slope of second segment oblique line
It is 20-30 times of first segment oblique line slope；The corresponding power of turning point of lower 9 stiffness curve of disc spring is equal to the gravity of device for vibration insutation 1；
The rigidity of metal coil spring 10 is the one third of 9 maximum rigidity of lower disc spring；Rubber cylinder 11 and metal coil spring 10 are not
Contact, no friction.
In conjunction with Fig. 1, Fig. 2 and Fig. 3, the rigidity of rubber cylinder 11 is 5-7 times of 10 rigidity of metal coil spring；Install vibration isolation
After equipment 1, the initial intrinsic frequency of whole system is 2-3Hz, and lower disc spring 9 deforms less than S1, that is, is in for the second oblique line stage；
For free rolling plate 8 to bottom offset within the scope of S1-S2, the intrinsic frequency of system is fn2=8Hz；Free rolling plate 8 is to bottom offset
Within the scope of S2-S3, the intrinsic frequency of system is fn3=20Hz.
Claims (1)
1. a kind of combined shock absorber with three rank intrinsic frequencies, it is characterised in that：Including device for vibration insutation (1) can be installed
Equipment platform (2), is installed in above the pressure plate (6) the vibration isolation bar (3) for connecting the equipment platform (2) and pressure plate (6)
Upper disc spring (7), be installed in below the pressure plate (6) lower disc spring (9), be installed in the freedom of lower disc spring (9) bottom
Rolling plate (8), the shaft bearing plate (4) for being installed with linear bearing (41), the fixed plate (12) for being installed with rubber cylinder (11), connection institute
It states the vibration isolation ontology (5) of shaft bearing plate (4) and the fixed plate (12), be installed in the free rolling plate (8) and the fixed plate
(12) metal coil spring (10) between；The vibration isolation ontology (5) is the hollow cylinder that cross section is annulus；The freedom
Rolling plate (8) is surrounded by one group of ball, and the ball can be rolled along the inner surface of the vibration isolation ontology (5)；The gold
Belong to the outside that helical spring (10) is installed in the rubber cylinder (11)；The vibration isolation bar (3) passes through the linear bearing (41)；
The upper disc spring (7) and the lower disc spring (9) are metal butterfly spring, have identical rigidity force diagram；It is described
The stiffness curve of lower disc spring (9) is that two sections of oblique lines form, and wherein the slope of second segment oblique line is the 20-30 of first segment oblique line slope
Times；The corresponding power of turning point of lower disc spring (9) stiffness curve is equal to the gravity of the device for vibration insutation (1)；The metal spiral shell
The rigidity for revolving spring (10) is the one third of lower disc spring (9) maximum rigidity；The rubber cylinder (11) and the metal
Helical spring (10) does not contact, no friction；The rigidity of the rubber cylinder (11) is the metal coil spring (10) rigidity
5-7 times；After installing device for vibration insutation (1), the initial intrinsic frequency of whole system is 2-3Hz, and lower disc spring (9) deform less than
S1 was in for the second oblique line stage；To bottom offset within the scope of S1-S2, the intrinsic frequency of system is the free rolling plate (8)
Fn2=8Hz；For the free rolling plate (8) to bottom offset within the scope of S2-S3, the intrinsic frequency of system is fn3=20Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611040532.3A CN106678267B (en) | 2016-11-22 | 2016-11-22 | A kind of combined shock absorber with three rank intrinsic frequencies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611040532.3A CN106678267B (en) | 2016-11-22 | 2016-11-22 | A kind of combined shock absorber with three rank intrinsic frequencies |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106678267A CN106678267A (en) | 2017-05-17 |
| CN106678267B true CN106678267B (en) | 2018-08-14 |
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| CN201611040532.3A Active CN106678267B (en) | 2016-11-22 | 2016-11-22 | A kind of combined shock absorber with three rank intrinsic frequencies |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108119597A (en) * | 2017-12-15 | 2018-06-05 | 常州大学 | A kind of intelligent vibration damper available for resonant belt vibration isolation |
| CN109236925B (en) * | 2018-09-28 | 2020-06-26 | 常州大学 | Gas linear damping type constant-rigidity vibration isolator |
| CN110758450B (en) * | 2019-12-02 | 2021-01-12 | 西南交通大学 | Traction pull rod buffer of medium-low speed maglev train |
| CN117626724A (en) * | 2023-10-24 | 2024-03-01 | 黑龙江大学 | Multiple buffer vibration isolation device for enhancing vibration isolation effect of floating slab track system |
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| EP1464861B1 (en) * | 2003-04-03 | 2005-11-30 | General Motors Corporation | Flat disk spring assembly for automatic transmissions |
| CN200998989Y (en) * | 2007-01-29 | 2008-01-02 | 黎孟珠 | Automobile suspension spring with multi-stage rigidity |
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| CN106678267A (en) | 2017-05-17 |
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