CN203756834U - Vibration isolator - Google Patents
Vibration isolator Download PDFInfo
- Publication number
- CN203756834U CN203756834U CN201420029955.5U CN201420029955U CN203756834U CN 203756834 U CN203756834 U CN 203756834U CN 201420029955 U CN201420029955 U CN 201420029955U CN 203756834 U CN203756834 U CN 203756834U
- Authority
- CN
- China
- Prior art keywords
- vibration isolator
- hole
- positioning block
- collar bush
- active damping
- Prior art date
- 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
Links
- 238000013016 damping Methods 0.000 claims abstract description 53
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Vibration Prevention Devices (AREA)
- Springs (AREA)
Abstract
The utility model relates to the technical field of vibration isolators, particularly to a vibration isolator. The vibration isolator comprises a vibration isolator body, which is provided with a carrier plate and a positioning block; a main shaft sleeve which is provided with an internal movable damping shaft is arranged between the carrier plate and the positioning block, the bottom of the main shaft sleeve is provided with a bowl-shaped structure which is provided with a through hole, and the bowl-shaped structure is invertedly fixed onto the positioning block; one end of the movable damping shaft is threadedly connected with a locking nut, and the other end of the movable damping shaft extends out of the through hole of the main shaft sleeve and is fixedly connected with the carrier plate; the portion of the movable damping shaft, which is close to the carrier plate, is provided with a cylindrical platform which is integrally formed with the movable damping shaft; the outer diameter of the cylindrical platform is smaller than the inner diameter of the through hole of the main shaft sleeve; a disc spring sleeves the movable damping shaft between the cylindrical platform and the locking nut, and both ends of the disc spring sleeve damping limit blocks on the movable damping shaft; the outer diameter of the damping limit blocks is larger than the inner diameter of the through hole of the main shaft sleeve. The vibration isolator is simple, compact and reasonable in structure and can effectively avoid overlarge amplitude of a steel cable vibration isolator.
Description
Technical field
The utility model relates to antivibration area, is specially a kind of vibration isolator.
Background technique
Along with the high speed development of information technology, the electronization of equipment and precise treatment degree are further strengthened, and start more and more at national defence, civilian core and other field, to be widely used, and this adapts to particular surroundings to electronic equipment and has proposed new requirement.Electronic equipment, under vibration and thump environment, due to fatigue and the resonance phenomenon of vibration, may occur that the performance of electronic equipment reduces the phenomenons such as inefficacy even.In order to improve working life and the working efficiency of equipment, all electronic equipment has been installed to vibration isolator now, to improve the anti-vibration ability of equipment, guaranteed the reliability that it can run well under large impact, reduce structureborne noise, thereby guarantee the reliability of product performance and use.The vibration isolator that most electronic equipment is installed is main mainly with rubber vibration isolator and steel-wire isolator, rubber vibration isolator low price, although better performances under opposing low frequency condition, but due to inferior positions such as ageing of rubber and impact resistance are weak, use and mostly be the product for civilian use, for scientific research and the special dimension such as military, use narrower.Steel-wire isolator is used more a kind of vibration isolator as scientific research and military domain, and energy-absorbing Noise Reduction is obvious, shock resistance, but for the vibration of higher amplitudes, the effect of steel-wire isolator is just very undesirable.If increase the rigidity of vibration isolator, do not reach vibration isolating effect.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of vibration isolator is provided, thereby prevents that the amplitude of steel-wire isolator is excessive, improves vibration isolating effect.
For realizing above-mentioned technical purpose, the scheme that the utility model provides is: a kind of vibration isolator, comprise and there is the vibration isolator main body of holding thing plate and positioning block, the described collar bush that is provided with built-in active damping axle between thing plate and positioning block that holds, collar bush bottom has the bowl shaped structure of through hole, and its back-off is fixed on positioning block; Described active damping axle one end is threaded with locking nut, its the other end stretch out collar bush through hole and with hold thing plate and be fixedly connected with, on active damping axle, near the part of holding thing plate, be provided with and the integrated cylinder platform of active damping axle, the external diameter of cylinder platform is less than the internal diameter of collar bush through hole, sheathed dish spring on active damping axle between this cylinder platform and locking nut, dish spring two ends arrange respectively the damping limiting stopper being sheathed on active damping axle, and the external diameter of this damping limiting stopper is greater than the internal diameter of collar bush through hole.
And, describedly hold thing plate and positioning block is circle, the circumference of positioning block radially connects some contiguous blocks, and the bi-side of each contiguous block are symmetrical arranged two wire rope and are radially connected with the circumference that holds thing plate, and the both ends of the surface of every wire rope have the angle that is greater than zero degree vertically.
And the middle part of described positioning block is provided with the hole that holds active damping axle and locking nut, the aperture in this hole is less than the external diameter of damping limiting stopper.
And the through-hole aperture of described collar bush is than the large 2mm of cylinder platform external diameter.
And described locking nut, active damping axle, damping limiting stopper are stainless steel.
And described collar bush is aluminum alloy material.
The utility model is simple in structure, compact, reasonable, especially can effectively prevent that steel-wire isolator amplitude is excessive.
Accompanying drawing explanation
Fig. 1 is the structural representation of vibration isolator main body.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the worm's eye view of Fig. 2.
Fig. 4 is the structural representation of collar bush.
Fig. 5 is the worm's eye view of Fig. 4.
Fig. 6 is the structural representation of active damping axle.
Wherein, 1, vibration isolator main body, 2, locking nut, 3, active damping axle, 4, damping limiting stopper, 5, dish spring, 6, wire rope, 7, collar bush, 8, contiguous block, 9, positioning block, 10, hold thing plate.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
The present embodiment provides a kind of vibration isolator, comprise and there is the vibration isolator main body 1 of holding thing plate 10 and positioning block 9, the described collar bush that is provided with built-in active damping axle 3 between thing plate 10 and positioning block 9 that holds, collar bush bottom has the bowl shaped structure of through hole, and its back-off is fixed on positioning block 9; Described active damping axle 3 one end are threaded with locking nut 2, its the other end stretch out collar bush through hole and with hold thing plate 10 and be fixedly connected with, on active damping axle 3, near the part of holding thing plate 10, be provided with and the integrated cylinder platform of active damping axle 3, the external diameter of cylinder platform is less than the internal diameter of collar bush through hole, sheathed dish spring on active damping axle 3 between this cylinder platform and locking nut 2, dish spring two ends arrange respectively the damping limiting stopper 4 being sheathed on active damping axle 3, and the external diameter of this damping limiting stopper 4 is greater than the internal diameter of collar bush through hole.
Further, describedly hold thing plate 10 and positioning block 9 is circle, the circumference of positioning block 9 radially connects some contiguous blocks 8, and the bi-side of each contiguous block 8 are symmetrical arranged two wire rope and are radially connected with the circumference that holds thing plate 10, and the both ends of the surface of every wire rope have the angle that is greater than zero degree vertically.
Further, the middle part of described positioning block 9 is provided with the hole that holds active damping axle 3 and locking nut 2, and the aperture in this hole is less than the external diameter of damping limiting stopper 4.
Further, the through-hole aperture of described collar bush 7 is than the large 2mm of cylinder platform external diameter.
Further, described locking nut 2, active damping axle 3, damping limiting stopper 4 are stainless steel
Further, described collar bush 7 is aluminum alloy material.
During work, when equipment amplitude is less, because the damping limiting stopper 4 of upper and lower end and the upper end of collar bush 7, positioning block 9 do not contact, it is just inoperative to there is not deformation in the dish spring 5 in collar bush 7 yet, only 1 function of shock insulation of vibration isolator main body; When equipment amplitude is larger, be that vibration isolator main body 1 changes compared with large amplitude in vertical direction: if vibration isolator main body 1 upper and lower end compression amplitude is excessive, the distance of holding between thing plate 10 and positioning block 9 is too small, lower end damping limiting stopper 4 contacts with positioning block 9 so, thereby dish spring 5 is gradually reduced, it is large that damping becomes, and stops the distance of holding between thing plate 10 and positioning block 9 to diminish, and then stop the amplitude of vibration isolator main body 1 to continue to become large; If vibration isolator main body 1 upper and lower end stretching amplitude is excessive, end in contact on upper end damping limiting stopper 4 and collar bush 7 so, thus dish spring 5 is gradually reduced, and it is large that damping becomes, stop the distance of holding between thing plate 10 and positioning block 9 to become large, and then stop the amplitude of vibration isolator main body 1 further to expand.So just can effectively prevent that steel-wire isolator amplitude is excessive.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvement or distortion, these improvement or distortion also should be considered as protection domain of the present utility model.
Claims (6)
1. a vibration isolator, comprise and there is the vibration isolator main body of holding thing plate and positioning block, it is characterized in that: described in hold the collar bush that is provided with built-in active damping axle between thing plate and positioning block, collar bush bottom has the bowl shaped structure of through hole, its back-off is fixed on positioning block; Described active damping axle one end is threaded with locking nut, its the other end stretch out collar bush through hole and with hold thing plate and be fixedly connected with, on active damping axle, near the part of holding thing plate, be provided with and the integrated cylinder platform of active damping axle, the external diameter of cylinder platform is less than the internal diameter of collar bush through hole, sheathed dish spring on active damping axle between this cylinder platform and locking nut, dish spring two ends arrange respectively the damping limiting stopper being sheathed on active damping axle, and the external diameter of this damping limiting stopper is greater than the internal diameter of collar bush through hole.
2. a kind of vibration isolator according to claim 1, it is characterized in that: described in hold thing plate and positioning block is circle, the circumference of positioning block radially connects some contiguous blocks, the bi-side of each contiguous block are symmetrical arranged two wire rope and are radially connected with the circumference that holds thing plate, and the both ends of the surface of every wire rope have the angle that is greater than zero degree vertically.
3. a kind of vibration isolator according to claim 1, is characterized in that: the middle part of described positioning block is provided with the hole that holds active damping axle and locking nut, and the aperture in this hole is less than the external diameter of damping limiting stopper.
4. a kind of vibration isolator according to claim 1, is characterized in that: the through-hole aperture of described collar bush is than the large 2mm of cylinder platform external diameter.
5. according to a kind of vibration isolator described in claim 1 or 2 or 3 or 4, it is characterized in that: described locking nut, active damping axle, damping limiting stopper are stainless steel.
6. according to a kind of vibration isolator described in claim 1 or 2 or 3 or 4, it is characterized in that: described collar bush is aluminum alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420029955.5U CN203756834U (en) | 2014-01-17 | 2014-01-17 | Vibration isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420029955.5U CN203756834U (en) | 2014-01-17 | 2014-01-17 | Vibration isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203756834U true CN203756834U (en) | 2014-08-06 |
Family
ID=51252114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420029955.5U Expired - Lifetime CN203756834U (en) | 2014-01-17 | 2014-01-17 | Vibration isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203756834U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534013A (en) * | 2015-01-09 | 2015-04-22 | 西安应用光学研究所 | Shock absorber with accurate three-direction rigidity balancing function |
| CN105840708A (en) * | 2016-04-15 | 2016-08-10 | 南京捷诺环境技术有限公司 | Anti-overturning vibration isolator |
| CN106402235A (en) * | 2016-11-22 | 2017-02-15 | 常州大学 | No-formant random vibration damper |
| CN106763410A (en) * | 2016-11-22 | 2017-05-31 | 常州大学 | A kind of ultralow frequency resonance free metal isolator |
| CN111118975A (en) * | 2019-12-30 | 2020-05-08 | 宁波市鄞州佳旭服饰有限公司 | Vibration isolation ring and vibration isolation butterfly spring in vibration isolator for floating slab track |
-
2014
- 2014-01-17 CN CN201420029955.5U patent/CN203756834U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534013A (en) * | 2015-01-09 | 2015-04-22 | 西安应用光学研究所 | Shock absorber with accurate three-direction rigidity balancing function |
| CN104534013B (en) * | 2015-01-09 | 2016-04-27 | 西安应用光学研究所 | A kind of can the vibration damper of accurate balance three-way rigidity |
| CN105840708A (en) * | 2016-04-15 | 2016-08-10 | 南京捷诺环境技术有限公司 | Anti-overturning vibration isolator |
| CN106402235A (en) * | 2016-11-22 | 2017-02-15 | 常州大学 | No-formant random vibration damper |
| CN106763410A (en) * | 2016-11-22 | 2017-05-31 | 常州大学 | A kind of ultralow frequency resonance free metal isolator |
| CN106402235B (en) * | 2016-11-22 | 2018-10-19 | 常州大学 | A kind of random vibration damper of no formant |
| CN106763410B (en) * | 2016-11-22 | 2019-01-25 | 常州大学 | A kind of ultralow frequency resonance free metal isolator |
| CN111118975A (en) * | 2019-12-30 | 2020-05-08 | 宁波市鄞州佳旭服饰有限公司 | Vibration isolation ring and vibration isolation butterfly spring in vibration isolator for floating slab track |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |
|
| CX01 | Expiry of patent term |