CN207216043U - A kind of isolation mounting based on SF leaf spring - Google Patents
A kind of isolation mounting based on SF leaf spring Download PDFInfo
- Publication number
- CN207216043U CN207216043U CN201721248218.4U CN201721248218U CN207216043U CN 207216043 U CN207216043 U CN 207216043U CN 201721248218 U CN201721248218 U CN 201721248218U CN 207216043 U CN207216043 U CN 207216043U
- Authority
- CN
- China
- Prior art keywords
- disk
- leaf spring
- reflecting prism
- outrigger
- internal frame
- 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.)
- Active
Links
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model discloses a kind of isolation mounting based on SF leaf spring, it is related to absolute gravity measurement technical field.The present apparatus is made up of one-level vibration isolation leaf spring system and two level vibration isolation coil spring system, whole mass of the one-level vibration isolation leaf spring system as two level vibration isolation coil spring system, so, two level vibration isolation coil spring system framework keeps geo-stationary with ground, make whole one-level vibration isolation leaf spring system that there is certain vibration isolating effect in the presence of inertia.Compared with prior art, the utility model tool can reduce the intrinsic frequency of system, that is, improve the natural period of system, and the research to vibrating isolation system is significant；It is simple in construction, it is easy to operate, two level elastic construction is formed with leaf spring and helical spring, there is ideal vibration isolating effect；Good technical support is provided for high-precision absolute gravimeter development.
Description
Technical field
It the utility model is related to absolute gravity measurement technical field, more particularly to it is a kind of based on SF leaf spring
Isolation mounting.
Background technology
Mechanical oscillatory structure phenomenon is prevalent among actual production practices.When system is encouraged by extraneous vibration source
When, it will produce vibration.People using vibration can be production practices service, as industrially frequently with vibration screening, vibration dip
Stake, vibrating transportation and sensor by Theory of Vibration design etc.；However, in science and techniques of defence, industrial machinery and instrument, instrument
Etc. technical field, mechanical oscillation frequently can lead to structural damage failure, and measurement accuracy reduces, and service life shortening etc. is asked
Topic.For example, the vibration of instrument, instrument can cause the reduction of its measurement accuracy；During Spacecraft Launch, impact load is likely to result in knot
Damage inactivation of structure etc..
, it is necessary to carry out high-precision position measurement or the detection of small power, outside in many Precise physical experimental studies
The vibration noise of boundary's environment can produce serious interference to experimental system, and when handling nuisance vibration problem, vibration isolation technique is usually
It is top-priority method.Vibration isolation technique includes two kinds of active vibration isolation and passive vibration isolation, and wherein active Vibration Isolation is compared to passive
Vibration isolation can realize more preferable anti-vibration performance.Vibrating isolation system is inherently a lowpass system, in order to improve the vibration isolation of system
Can be, it is necessary to the intrinsic frequency of reduction system, that is, improve the natural period of system as far as possible.
Utility model content
The purpose of this utility model, which is that, overcomes shortcoming and defect existing for prior art, there is provided one kind is based on spiral bullet
Spring hangs the isolation mounting of leaf spring, the equivalent period of whole mechanical system is improved, so as to improve the vibration isolating effect of system.This practicality
It is new to make its equivalent period more than tens of seconds, 3-5s earth pulsation signals can be effectively isolated, its vibration isolation prism is kept and ground
Heart geo-stationary, greatly improve absolute gravimeter measurement accuracy.
What the purpose of this utility model was realized in：
Whole device is made up of one-level vibration isolation leaf spring system and two level vibration isolation coil spring system, whole one-level vibration isolation leaf spring
Mass of the system as two level vibration isolation coil spring system, so, two level vibration isolation coil spring system framework are kept with ground
Geo-stationary, make whole one-level vibration isolation leaf spring system that there is certain vibration isolating effect in the presence of inertia.One-level vibration isolation leaf spring
System is needed by the reflecting prism of vibration isolation by the suspension of " Sangen " tablet spring, is detected by capacitance displacement sensor relative by vibration isolation object
In the displacement of level system framework, by feedback circuit the relative displacement of detection is converted into electric current being input to magnetic cylinder coil makes two
The interior base displacement of level vibration isolation coil spring system follows the relative displacement of vibration isolation object and one-level vibration isolation leaf spring system, so as to allow
Whole system is equivalent to overlength spring system, increases the equivalent period of its system by more than tens seconds.
Specifically, the present apparatus includes feedback circuit；
It is provided with height adjustable screw rod, disk on outrigger, outrigger pole, deuterostrophies spring, outer base, levelling bolt, anti-
Feeder line circle, interior base, internal frame pole, disk on internal frame, one-level leaf spring, reflecting prism chassis, height adjustable screw rod, reflecting prism and
Capacitance displacement sensor；
Its position and annexation are：
Disk is fixed by the threaded connection at three outrigger pole both ends in outer base and outrigger；
Disk connects interior base by three deuterostrophies springs on outrigger；
Disk is fixed by three internal frame pole threaded connections in interior base and internal frame；
Reflecting prism chassis connects disk on internal frame by three one-level leaf springs；
Reflecting prism is fixed on directly over reflecting prism chassis；
Three levelling bolts are provided below in outer base；
Deuterostrophies spring is connected with disk on outrigger by the 1st height adjustable screw rod, and disk passes through in one-level leaf spring and internal frame
2nd height adjustable screw rod connects；
Capacitance displacement sensor is arranged between reflecting prism chassis and reflecting prism；
Feedback coil is arranged between interior base 8 and outer base；
Capacitance displacement sensor, feedback circuit and feedback coil are sequentially connected.
Compared with prior art, the utility model has following advantages and good effect：
1. the intrinsic frequency of system can be reduced, that is, the natural period of system is improved, the research to vibrating isolation system has important
Meaning；
2. it is simple in construction, it is easy to operate, two level elastic construction is formed with leaf spring and helical spring, there is ideal vibration isolation
Effect；
3. provide good technical support for high-precision absolute gravimeter development.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is embodiment configuration diagram of the present utility model.
In figure：
A-support；
B-falling bodies mechanism；
C-the system；
0-feedback circuit；
1-the 1 height adjustable screw rod；
Disk on 2-outrigger；
3-outrigger pole；
4-deuterostrophies spring；
5-outer base；
6-levelling bolt；
7-feedback coil；
8-interior base；
9-internal frame pole；
Disk on 10-internal frame；
11-one-level leaf spring；
12-reflecting prism chassis；
13-the 2 height adjustable screw rod；
14-reflecting prism；
15-capacitance displacement sensor.
Embodiment
Describe in detail with reference to the accompanying drawings and examples：
First, it is overall
Such as Fig. 1, the present apparatus includes feedback circuit 0；
It is provided with height adjustable screw rod 1, disk 2, outrigger pole 3, deuterostrophies spring 4, outer base 5, leveling spiral shell on outrigger
Nail 6, feedback coil 7, interior base 8, internal frame pole 9, disk 10, one-level leaf spring 11, reflecting prism chassis 12, height adjustable on internal frame
Screw rod 13, reflecting prism 14 and capacitance displacement sensor 15；
Its position and annexation are：
Disk 2 is fixed by the threaded connection at three both ends of outrigger pole 3 in outer base 5 and outrigger；
Disk 2 connects interior base 8 by three deuterostrophies springs 4 on outrigger；
Disk 10 is threadedly coupled fixation by three internal frame poles 9 in interior base 8 and internal frame；
Reflecting prism chassis 12 connects disk 10 on internal frame by three one-level leaf springs 11；
Reflecting prism 14 is fixed on directly over reflecting prism chassis 12；
Three levelling bolts 6 are provided below in outer base 5；
Disk 2 is connected by the 1st height adjustable screw rod 1 on deuterostrophies spring 4 and outrigger, disk in one-level leaf spring 11 and internal frame
10 are connected by the 2nd height adjustable screw rod 13；
Capacitance displacement sensor 15 is arranged between reflecting prism chassis 12 and reflecting prism 14；
Feedback coil 7 is arranged between interior base 8 and outer base 5；
Capacitance displacement sensor 15, feedback circuit 0 and feedback coil 7 are sequentially connected.
2nd, functional part
00) feedback circuit 0
Feedback circuit 0 is a kind of general negative-feedback circuit.
Its function is that displacement signal is converted into electric signal.
01) the 1st height adjustable screw rod 1
1st height adjustable screw rod 1 is a kind of threaded rod, and lower end passes through nut check with disk 2 on outrigger.
02) disk 2 on outrigger
Disk 2 is a kind of disk on outrigger, and manhole is provided among disk and is used for the printing opacity of reflecting prism 14.
03) outrigger pole 3
Outrigger pole 3 is a kind of cylindrical posts.
Its function is that disk 2 and outer base 5 are an entirety on connection outrigger.
04) deuterostrophies spring 4
Deuterostrophies spring 4 includes being distributed on 3 helical springs of the lower section of disk 2 on outrigger, upper end and the 1st height adjustable spiral shell
Bar 1 connects, lower end suspension interior base 8.
Its function is to make to form elastic construction between disk 2 on interior base 8 and outrigger.
05) outer base 5
Outer base 5 is a kind of disk, and it is evenly equipped with 6 tapped through holes above, wherein 3 tapped through holes are used to fix outrigger
3,3 tapped through holes of pole are used to connect levelling bolt 6.
Its function is to provide support for whole device.
06) levelling bolt 6
Levelling bolt 6 includes 3 uniform General purpose screws, is arranged on the lower surface of outer base 5.
Its function is the horizontal level of adjustment system.
07) feedback coil 7
Feedback coil 7 is made up of coil and magnetic cylinder, and the center that magnetic cylinder is fixed above outer base 5, coil is fixed on interior
Center below base 8, coil are inserted in magnetic cylinder, and lead-out wires of coil is into feedback circuit 0.
Its function is to provide feedback force for interior base 8.
08) interior base 8
Interior base 8 is a kind of disk, and it is evenly equipped with 3 tapped through holes above, and outside is laid with 3 leaf spring installations
Hole, interior base 8 are threadedly coupled with the uniform lower end of internal frame pole 9 in top three.
Its function is to provide support, connection deuterostrophies spring 4 for disk on internal frame 10.
09) internal frame pole 9
Internal frame pole 9 is a kind of cylindrical posts, and stock two is provided with external screw thread, the upper end of internal frame pole 9 and disk on internal frame
10 threaded connections, the lower end of internal frame pole 9 is threadedly coupled with interior base 8.
Its function is disk 10 and interior base 8 on connection internal frame.
10) disk 10 on internal frame
Disk 10 is a kind of disk on internal frame, the middle manhole for being provided with 50cm, disk 10 and the upper end of internal frame pole 9 on internal frame
It is connected, 10 uniform 3 the 2nd height adjustable screw rods 13 of disk on internal frame.
Its function is 3 uniform the 2nd height adjustable screw rods 13 of connection so as to hang 3 one-level leaf springs 11.
11) one-level leaf spring 11
One-level leaf spring 11 includes 3 leaf springs for being distributed on the top of reflecting prism chassis 12, the upper end of 3 one-level leaf springs 11 with
3 the 2nd height adjustable screw rods 13 connect, the lower end suspension reflecting prism chassis 12 of 3 one-level leaf springs 11.
Its function is reflecting prism chassis 12 is formed elastic construction with disk 10 on internal frame.
12) reflecting prism chassis 12
Reflecting prism chassis 12 is a kind of disk, and upper surface is used for the He of fixed capacity displacement transducer 15 provided with tapped through hole
Reflecting prism 14.
Its function is to provide support for reflecting prism 14.
13) the 2nd height adjustable screw rod 13
2nd height adjustable screw rod 13 is a kind of threaded rod, 3 the 2nd height adjustable screw rods 13 with uniform 3 on disk 10 on internal frame
Individual through hole connection, the lower end of the 2nd height adjustable screw rod 13 is fixed with the upper end of one-level leaf spring 11.
Its function is to make the upper end level of one-level leaf spring 11 adjustable, so as to leveling reflecting prism chassis 12.
14) reflecting prism 14
Reflecting prism 14 is a kind of general part, is fixed on reflecting prism chassis 12.
Its function is as by vibration isolation object, the light beam of reflection falling bodies mechanism.
15) capacitance displacement sensor 15
Capacitance displacement sensor 15 is a kind of electronic device for measuring micro-displacement.
Its function is by the 14 relatively slight displacement of reflecting prism chassis 12 and reflecting prism, is output in feedback circuit 0.
3rd, the working mechanism of the present apparatus：
Such as Fig. 1, the present apparatus has stronger vibration isolation effect, i.e., when ground vibration drives outer base 5 to vibrate, outrigger pole 3
With ground vibration, due to the effect of inertia of system architecture, the remains stationary of reflecting prism 14；And on reflecting prism chassis 12
Capacitance displacement sensor 15 can measure displacement of the reflecting prism 14 relative to interior base 8, by feedback circuit 0 by displacement variable
Be converted to electric signal；This electric signal control feedback coil 7 on size of current and direction so that interior base 8 by with reflection
The relative displacement of prism 14 and interior base 8 power equal in magnitude, in opposite direction, makes reflecting prism chassis 12 be kept relative to the earth's core
Origin-location is basically unchanged；The coupling of three one-level leaf springs, 11, three deuterostrophies springs 4 provides twin-stage elastic construction, shape
Into the system have stronger vibration isolating effect.
4th, the application of the present apparatus
Such as Fig. 2, falling bodies mechanism B is provided with above support A, the system C is positioned over falling bodies mechanism B underface, this
The beam alignment of reflecting prism 14 and falling bodies mechanism B in system C.
The present apparatus has stronger vibration isolation effect, i.e., when ground vibration drives outer base 5 to vibrate, outrigger pole 3 is with ground
Vibration, due to the effect of inertia of system architecture, the remains stationary of reflecting prism 14；When being measured using absolute gravimeter, rib is reflected
Mirror 14 is installed in the system, is had preferable anti-vibration performance i.e. holding and the earth's core geo-stationary, be ensure that instrument not by ground
The influence of vibration.
Claims (1)
- A kind of 1. isolation mounting based on SF leaf spring, it is characterised in that：Including feedback circuit（0）；It is provided with height adjustable screw rod（1）, disk on outrigger（2）, outrigger pole（3）, deuterostrophies spring（4）, outer base（5）、 Levelling bolt（6）, feedback coil（7）, interior base（8）, internal frame pole（9）, disk on internal frame（10）, one-level leaf spring（11）, reflection Prism chassis（12）, height adjustable screw rod（13）, reflecting prism（14）And capacitance displacement sensor（15）；Its position and annexation are：Outer base（5）With disk on outrigger（2）By three outrigger poles（3）The threaded connection at both ends is fixed；Disk on outrigger（2）Pass through three deuterostrophies springs（4）Connect interior base（8）；Interior base（8）With disk on internal frame（10）By three internal frame poles（9）Threaded connection is fixed；Reflecting prism chassis（12）Pass through three one-level leaf springs（11）Connect disk on internal frame（10）；Reflecting prism（14）It is fixed on reflecting prism chassis（12）Surface；Outer base（5）Three levelling bolts are provided below（6）；Deuterostrophies spring（4）With disk on outrigger（2）Pass through the 1st height adjustable screw rod（1）Connection, one-level leaf spring（11）And internal frame Upper disk（10）Pass through the 2nd height adjustable screw rod（13）Connection；Capacitance displacement sensor（15）It is arranged on reflecting prism chassis（12）And reflecting prism（14）Between；Feedback coil（7）It is arranged on interior base（8）And outer base（5）Between；Capacitance displacement sensor（15）, feedback circuit（0）And feedback coil（7）It is sequentially connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721248218.4U CN207216043U (en) | 2017-09-27 | 2017-09-27 | A kind of isolation mounting based on SF leaf spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721248218.4U CN207216043U (en) | 2017-09-27 | 2017-09-27 | A kind of isolation mounting based on SF leaf spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207216043U true CN207216043U (en) | 2018-04-10 |
Family
ID=61819461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721248218.4U Active CN207216043U (en) | 2017-09-27 | 2017-09-27 | A kind of isolation mounting based on SF leaf spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207216043U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107765322A (en) * | 2017-09-27 | 2018-03-06 | 中国地震局地震研究所 | Vibrating isolation system based on SF leaf spring |
-
2017
- 2017-09-27 CN CN201721248218.4U patent/CN207216043U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107765322A (en) * | 2017-09-27 | 2018-03-06 | 中国地震局地震研究所 | Vibrating isolation system based on SF leaf spring |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20110048133A1 (en) | Vibration element coupled with non-linear force to improve non-resonant frequency response | |
| CN105972148B (en) | Superlow frequency vibration isolating device based on deuterostrophies spring system | |
| GB2070249A (en) | Contact-sensitive probe | |
| CN203838353U (en) | Two-dimensional compound-pendulum tilting low-frequency vibration-isolation device based on capacitive sensing | |
| CN207216043U (en) | A kind of isolation mounting based on SF leaf spring | |
| CN102374929B (en) | Broadband angular vibration exciting device | |
| CN103969692A (en) | Two-dimensional composite pendulum crustal inclination low-frequency vibration isolation device based on capacitive sensing | |
| WO1996004531A1 (en) | A device for measuring absolute vibrations | |
| CN106199749B (en) | Two level superlow frequency vibration isolating device based on oblique pull spring and leaf spring system | |
| CN108534971A (en) | A kind of active-passive integratedization vibration isolator output force test device | |
| JP3314187B2 (en) | Force compensator for inertial mass measurement | |
| CN107765322A (en) | Vibrating isolation system based on SF leaf spring | |
| CN207213035U (en) | A kind of two level vibration isolator based on piece spring structure | |
| CN207216044U (en) | A kind of absolute gravimeter isolation mounting based on " Sangen " tablet spring suspension helical spring | |
| US20150323033A1 (en) | Method and apparatus for damping vibration of poles | |
| CN208535074U (en) | A kind of piezoelectricity active damper based on cantilever beam | |
| CN107489733A (en) | Two level vibration isolator based on piece spring structure | |
| RU183940U1 (en) | VIBROSTEND FOR STUDY OF METHODS OF PROTECTION AGAINST VIBRATIONS | |
| CN205841611U (en) | A kind of superlow frequency vibration isolating device based on deuterostrophies spring system | |
| CN105606326A (en) | Single spring suspension actuating vibration table | |
| KR101305874B1 (en) | Vibration absorber with variable stiffness | |
| CN201548698U (en) | Geophone based on quartz flexible accelerometer | |
| CN205426466U (en) | Single spring hangs actuating vibration table | |
| CN205982676U (en) | Second grade ultra -low frequency vibration isolation device based on cable stayed spring and leaf spring system | |
| HAGOOD et al. | Experimental investigation into passive damping enhancement for space structures |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |