CN111981080A - Double-layer vibration isolation device - Google Patents
Double-layer vibration isolation device Download PDFInfo
- Publication number
- CN111981080A CN111981080A CN201910441122.7A CN201910441122A CN111981080A CN 111981080 A CN111981080 A CN 111981080A CN 201910441122 A CN201910441122 A CN 201910441122A CN 111981080 A CN111981080 A CN 111981080A
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- China
- Prior art keywords
- platform
- stage
- double
- isolation
- vibration
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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
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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
Abstract
The invention discloses a double-layer vibration isolation device, which comprises a first-stage static platform and a first-stage movable platform, wherein the first-stage static platform is a base of the vibration isolation device, an isolation pad is arranged between the first-stage static platform and the first-stage movable platform, the three-layer structure is connected through bolts, the second-stage movable platform is an installation platform of the vibration isolation device and is used for installing a sea-air gravity sensor of vibration isolation equipment, an installation interface is provided on the installation platform, and a circular groove structure in the middle is a weight reduction groove; a second-stage isolation pad is arranged between the second-stage static platform and the second-stage dynamic platform, the three-layer structure is connected through bolts to play a role in isolating vibration, meanwhile, the bolts are isolated from the second-stage static platform through the bolt isolation pads to guarantee elastic connection, and the first-stage dynamic platform is rigidly connected with the second-stage static platform through stand columns. The invention has the advantages that the damping device is applied to a certain gravity sensor, so that the damping efficiency of the root mean square value of the interference vibration magnitude input to the gravity sensor is improved to 96.2 percent from about 50 percent of the common damper.
Description
Technical Field
The invention belongs to a vibration isolation device for a gravity sensor, and particularly relates to a double-layer vibration isolation device with low cut-off frequency for a sea-air gravity sensor.
Background
The sea-air gravity sensor is a dynamic measurement, in the measurement process, the gravity acceleration measured by the sea-air gravity sensor contains interference acceleration generated by disturbance of a measurement carrier, and the gravity acceleration value measured by the gravity sensor cannot meet the precision requirement due to the influence of the interference acceleration, so that a vibration isolation device is needed to weaken the influence of the interference acceleration on the gravity sensor, and the gravity sensor can meet the measurement precision requirement in a dynamic environment. The double-layer vibration isolation device provided by the invention can meet the requirement.
Disclosure of Invention
The invention aims to provide a double-layer vibration isolation device which can reduce the influence of interference acceleration on measurement precision when a sea-air gravity sensor is used for measurement in a dynamic environment.
The invention is realized in this way, a double-deck vibration isolation device, it includes the first-class quiet platform and first-class moving platform, the first-class quiet platform is the base of the vibration isolation device, set up the spacer between first-class quiet platform and first-class moving platform, the bolted connection should three-layer structure, the second-class moving platform is the mounting platform of the vibration isolation device, is used for installing the sea-sky gravity sensor of the vibration isolation equipment, provide the installation interface on it, the circular groove structure in the middle part is a weight reduction groove; a second-stage isolation pad is arranged between the second-stage static platform and the second-stage dynamic platform, the three-layer structure is connected through bolts to play a role in isolating vibration, meanwhile, the bolts are isolated from the second-stage static platform through the bolt isolation pads to guarantee elastic connection, and the first-stage dynamic platform is rigidly connected with the second-stage static platform through stand columns.
The first-stage static platform is provided with two wrenches to facilitate carrying.
The circular groove structure in the middle of the first-stage static platform is a weight reduction groove.
The primary isolation pad is made of a foamed rubber material.
The bolt is isolated from the primary movable platform by a bolt isolation pad so as to ensure elastic connection.
The secondary isolation pad is made of special closed-cell polyurethane foam material.
The number of the upright posts is 4.
The invention has the advantages that the damping device is applied to a certain gravity sensor, so that the damping efficiency of the root mean square value of the interference vibration magnitude input to the gravity sensor is improved to 96.2 percent from about 50 percent of the common damper.
Drawings
FIG. 1 is a schematic view of a double-deck vibration isolation device according to the present invention;
fig. 2 is a schematic view of a double-layer vibration isolation device according to the present invention.
In the figure, 1 a static platform, 2 a spacer, 3 a movable platform, 4 bolt spacers, 5 a static platform, 6 a second spacer, 7 a movable platform, 8 bolts, 9 columns, 10 vibration isolation devices and 11 a certain gravity sensor.
Detailed Description
The invention is described in detail below with reference to the following figures and specific embodiments:
as shown in fig. 1, a double-layer vibration isolating device includes nine parts: the device comprises a first-stage static platform 1, a first-stage isolating pad 2, a first-stage movable platform 3, a bolt isolating pad 4, a second-stage static platform 5, a second-stage isolating pad 6, a second-stage movable platform 7, bolts 8 and a stand column 9.
The first-stage static platform 1 is a base of the vibration isolation device, is used for being installed outwards and providing an installation interface, and is provided with two wrenches for facilitating carrying; the circular groove structure in the middle of the first-stage static platform 1 is a lightening groove, the first-stage isolating pad 2 is made of foamed rubber materials and is positioned between the first-stage static platform 1 and the first-stage movable platform 3, the three-layer structure is connected through bolts 8 to play a role in isolating vibration, and meanwhile, the bolts 8 are isolated from the first-stage movable platform 3 through bolt isolating pads 4 to ensure elastic connection; the secondary movable platform 7 is an installation platform of the vibration isolation device and is used for installing a sea-air gravity sensor of the vibration isolation device, an installation interface is provided on the secondary movable platform, and the circular groove structure in the middle is a weight reduction groove; the secondary isolation pad 6 is made of special closed-cell polyurethane foam material and is positioned between the secondary static platform 5 and the secondary movable platform 7, the three-layer structure is connected through bolts 8, so that the vibration isolation effect is achieved, and meanwhile, the bolts 8 are isolated from the secondary static platform 5 through the bolt isolation pad 4 so as to ensure elastic connection; the first-stage movable platform 3 and the second-stage static platform 5 are rigidly connected by four upright posts 9.
As shown in fig. 2, the vibration isolation device 10 is applied to a certain gravity sensor 11. By using the mounting interface on the secondary moving platform 7, a certain gravity sensor 11 can be directly mounted on the vibration isolation device 10 by using a standard fastener.
Claims (7)
1. A double-layer vibration isolation device is characterized in that: the device comprises a first-stage static platform (1) and a first-stage movable platform (3), wherein the first-stage static platform (1) is a base of a vibration isolation device, an isolation pad (2) is arranged between the first-stage static platform (1) and the first-stage movable platform (3), a bolt (8) is connected with the three-layer structure, a second-stage movable platform (7) is an installation platform of the vibration isolation device and is used for installing a sea-air gravity sensor of vibration isolation equipment, an installation interface is provided on the second-stage movable platform, and a circular groove structure in the middle is a weight reduction groove; set up second grade isolation pad (6) between quiet platform of second grade (5) and second grade movable platform (7), this three layer construction of bolted connection plays the effect of isolation vibration, and the bolt is kept apart with quiet platform of second grade (5) with the bolt isolation pad simultaneously to guarantee elastic connection, platform (3) are moved to the one-level and are used stand (9) rigid connection with quiet platform of second grade (5).
2. The double-deck vibration isolating device according to claim 1, wherein: the first-stage static platform (1) is provided with two wrenches to facilitate carrying.
3. The double-deck vibration isolating device according to claim 1, wherein: the circular groove structure in the middle of the first-stage static platform (1) is a weight reduction groove.
4. The double-deck vibration isolating device according to claim 1, wherein: the primary isolation pad (2) is made of a foamed rubber material.
5. The double-deck vibration isolating device according to claim 1, wherein: the bolt (8) is isolated from the first-stage movable platform (3) by a bolt isolation pad (4) so as to ensure elastic connection.
6. The double-deck vibration isolating device according to claim 1, wherein: the secondary isolation pad (6) is made of special closed-cell polyurethane foam material.
7. The double-deck vibration isolating device according to claim 1, wherein: the number of the upright posts (9) is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910441122.7A CN111981080A (en) | 2019-05-24 | 2019-05-24 | Double-layer vibration isolation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910441122.7A CN111981080A (en) | 2019-05-24 | 2019-05-24 | Double-layer vibration isolation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111981080A true CN111981080A (en) | 2020-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910441122.7A Pending CN111981080A (en) | 2019-05-24 | 2019-05-24 | Double-layer vibration isolation device |
Country Status (1)
| Country | Link |
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| CN (1) | CN111981080A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855848A (en) * | 2021-01-28 | 2021-05-28 | 山东省科学院海洋仪器仪表研究所 | Multilayer vibration isolation device for shipborne equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203322152U (en) * | 2012-12-11 | 2013-12-04 | 中国人民解放军海军工程大学 | Multi-degree of freedom vibration isolator used for board connection |
| CN204533988U (en) * | 2015-03-27 | 2015-08-05 | 中国电子工程设计院 | A kind of slippage compound power consumption vibration isolation support pedestal |
| KR101635904B1 (en) * | 2015-02-03 | 2016-07-04 | 이노스기술 주식회사 | Vibration isolating apparatus equipped with improved displacement-measuring system and smart maintenance and management system of vibration isolation apparatus using near field communication module |
| CN108594318A (en) * | 2018-07-12 | 2018-09-28 | 广州海洋地质调查局 | It is a kind of to be used for underwater gravimeter |
| CN108612962A (en) * | 2018-05-20 | 2018-10-02 | 苏州固特斯电子科技有限公司 | A kind of precision instrument damping base |
-
2019
- 2019-05-24 CN CN201910441122.7A patent/CN111981080A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203322152U (en) * | 2012-12-11 | 2013-12-04 | 中国人民解放军海军工程大学 | Multi-degree of freedom vibration isolator used for board connection |
| KR101635904B1 (en) * | 2015-02-03 | 2016-07-04 | 이노스기술 주식회사 | Vibration isolating apparatus equipped with improved displacement-measuring system and smart maintenance and management system of vibration isolation apparatus using near field communication module |
| CN204533988U (en) * | 2015-03-27 | 2015-08-05 | 中国电子工程设计院 | A kind of slippage compound power consumption vibration isolation support pedestal |
| CN108612962A (en) * | 2018-05-20 | 2018-10-02 | 苏州固特斯电子科技有限公司 | A kind of precision instrument damping base |
| CN108594318A (en) * | 2018-07-12 | 2018-09-28 | 广州海洋地质调查局 | It is a kind of to be used for underwater gravimeter |
Non-Patent Citations (3)
| Title |
|---|
| 屈进红等: "直升机GT-2A航空重力仪减振系统振动分析", 《物探与化探》 * |
| 屈进红等: "航空重力仪减振系统振动研究", 《物探与化探》 * |
| 屈进红等: "航空重力减振系统振动测试与分析", 《物探与化探》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855848A (en) * | 2021-01-28 | 2021-05-28 | 山东省科学院海洋仪器仪表研究所 | Multilayer vibration isolation device for shipborne equipment |
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Application publication date: 20201124 |