CN208151851U - A kind of dynamometry spherical bearing of band detection monitoring system - Google Patents
A kind of dynamometry spherical bearing of band detection monitoring system Download PDFInfo
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- CN208151851U CN208151851U CN201820329250.3U CN201820329250U CN208151851U CN 208151851 U CN208151851 U CN 208151851U CN 201820329250 U CN201820329250 U CN 201820329250U CN 208151851 U CN208151851 U CN 208151851U
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Abstract
A kind of dynamometry spherical bearing of band detection monitoring system, it further include the detection monitoring system being made of dynamometry elastomer, fiber grating force-measuring module and external monitoring unit including support top plate, the spherical crown steel liner plate and concave spherical surface steel liner plate of base-plate and installation therebetween；Dynamometry elastomer is mounted in the enclosure space between concave spherical surface steel liner plate and base-plate pelvic cavity, fiber grating force-measuring module is mounted on the preformed hole of base-plate lateral surface, is in close contact on the outside of the optical fiber diaphragm of fiber grating force-measuring module end and the dynamometry elastomer for being exposed at preformed hole position；External monitoring unit includes (FBG) demodulator and computer system, and (FBG) demodulator passes through signal transmssion line and wireless network or cable network respectively and connect with fiber grating force-measuring module and computer system.The fiber grating force-measuring module of the dynamometry spherical bearing does not need to provide power supply, and strong antijamming capability is accurate and reliable durable, can be realized in real time by network to the centralized detecting of multiple Bearing Seat Forces and automatic monitoring.
Description
Technical field
The utility model relates to a kind of bridge pad more particularly to it is a kind of can to act on structure upper vertical load carry out
The dynamometry spherical bearing with detection monitoring system of monitoring.
Background technique
Bridge pad is the important feature component for connecting bridge superstructure and substructure, it can be by bridge superstructure
Counter-force and deformation（Displacement and corner）Reliably pass to bridge substructure；Spherical bearing is big with bearing capacity, displacement is big,
The flexible feature of corner, and respectively consistent to rotating property, temperature applicable range is wide, thus spherical bearing be widely used in it is all kinds of
In Highway Municipal railroad bridge.
But the typically no force measuring function of traditional spherical bearing, the stress shape of support can not be detected in use
Condition, the vertical bearing capacity for reading support, can not be accurate the internal force distribution situation in each section of solution structure, Bridge Design can not be managed
The rationality verifying of the reliability and design method of opinion, brings big inconvenience to the maintenance and structure monitoring of support；When
When spherical bearing occurs abnormal during operation, be unable to visual inspection to support force-bearing situation, to can not judge bridge
The operation state of superstructure is unfavorable for monitoring and assessing the health status of bridge structure in time.
Also there is the dynamometry spherical bearing using strain gauge transducer, but there are still the following shortcomings：
1. using strain gauge transducer, output signal is small, the range of linearity is narrow, and dynamic response is poor, and reliability is not high,
Poor anti jamming capability；Strain gauge transducer exports after being amplified electric signal by exciting circuit, with the consumption of battery, supply voltage
It gradually decreases, sensitivity is just gradually reduced, inaccurate so as to cause dynamometry reading；
2. such dynamometry spherical bearing is arranged in depressed position inside the spherical crown steel liner plate or base-plate of spherical bearing
Dynamometric system is strained, carrier exterior is connected to by signal wire, structure is complicated, processing difficulties, and at high cost and maintenance and replacement are tired
It is difficult.
Utility model content
The technical problems to be solved in the utility model is：It provides a kind of structurally simple, economical practical, achievable to ball-type branch
Seat vertical bearing capacity is accurate, continuous, band that is effectively monitoring detects the dynamometry spherical bearing of monitoring system, to overcome prior art institute
Above shortcomings.
The technical scheme adopted by the utility model is that：
A kind of dynamometry spherical bearing of band detection monitoring system, including support top plate, base-plate and it is mounted on support
Spherical crown steel liner plate and concave spherical surface steel liner plate between top plate and base-plate, spherical surface and the concave spherical surface steel liner plate of spherical crown steel liner plate
Concave spherical surface is slidably matched, and the outer cylinder surface and base-plate pelvic cavity inner wall small―gap suture of concave spherical surface steel liner plate bottom cooperate；The survey
Power spherical bearing further includes detection monitoring system, and the detection monitoring system includes dynamometry elastomer, fiber grating force-measuring module
With external monitoring unit；
The dynamometry elastomer is mounted between concave spherical surface steel liner plate bottom and base-plate pelvic floor, outside dynamometry elastomer
Edge is provided with sealing lock ring circle, to which dynamometry elastomer to be sealed in the envelope between concave spherical surface steel liner plate and base-plate pelvic floor
It closes in space；Base-plate lateral surface position corresponding with dynamometry elastomer centre-height is provided with and base-plate pelvic cavity phase
Logical preformed hole, the fiber grating force-measuring module are mounted in preformed hole by internal screw thread, fiber grating force-measuring module end
Optical fiber diaphragm be exposed at preformed hole position dynamometry elastomer lateral surface be in close contact；
The external monitoring unit includes (FBG) demodulator and computer system, and the input terminal of the (FBG) demodulator is transmitted by signal
Line is connect with the fiber grating force-measuring module being mounted on dynamometry spherical bearing, and the output end of (FBG) demodulator by wireless network or has
Gauze network is connect with computer system, the computer system setting real-time monitoring and early warning system.
Its further technical solution is：
It is secondary that planar slide friction is set between the support top board undersurface and spherical crown steel lining plate top surface, the planar slide friction
Pair includes being welded on the mirror face stainless steel plate of support top board undersurface and adding screw by binder bonding or use anchor mode tight
Admittedly being embedded in the planar lasting board in spherical crown steel lining plate top surface groove, the convex spherical and concave spherical surface steel liner plate of the spherical crown steel liner plate
Concave spherical surface between set spherical surface sliding friction pair, the spherical surface sliding friction pair includes being coated on spherical crown steel liner plate convex spherical
Stainless steel plate is electroplated hard chromium layers and fastens by binder bonding plus screw or use anchor mode and be embedded in concave spherical surface steel lining
Spherical surface wearing plate in plate concave spherical surface groove.
Further：
The planar lasting board and spherical surface wearing plate be polytetrafluoroethylene (PTFE) slide plate or modified Teflon slide plate or
Ultrahigh molecular weight polyethylene abrasion-proof slide plate, the planar lasting board and spherical surface wearing plate are bonded using binder and screw mode is inlayed
When embedding, the binder uses insoluble and heat cured binder.
Due to taking above-mentioned technical proposal, the dynamometry spherical bearing of band detection monitoring system of the utility model a kind of in addition to
With conventional spherical bearing bearing capacity, displacement or limit, turn etc. flexibly etc. except beneficial effects（Wherein support top board undersurface is welded
There are mirror face stainless steel plate and planar lasting board to form planar slide friction pair, and convex ball surface and spherical surface with spherical crown steel liner plate
Wearing plate forms the horizontal sliding and corner that spherical surface sliding friction pair plays the role of support, guarantees that girder construction expands with heat and contract with cold normally
Sliding and the rotation of beam body）, also have the advantages that：
1. a kind of dynamometry spherical bearing which has a compact structure and a reasonable design of band detection monitoring system of the utility model, passes through
Detection monitoring system can detecte the vertical bearing capacity of support, and force measuring method is easy to be reliable；Its external monitoring unit includes solution
Instrument and computer system are adjusted, real-time monitoring and early warning system is arranged in computer system, can receive, storage Dynamometric support counts in real time
According to, and data analysis, processing, graphic software platform and early warning or alarm are carried out in time；It detects monitoring system and combines modernization
Number adopt technology and computer technology, it can be achieved that mass data collection and analysis, real-time force measuring spherical bearing is by dynamometry ball-type branch
Seat is used as sensor, to start a kind of new bridge reaction of supports monitoring technology, passes through monitoring statically indeterminate bridge structure
The reaction of supports, can accurately, easily calculate the practical internal force distribution situation of statically indeterminate bridge structure, and according to the reaction of supports and
Structural internal force distribution assessment bridge bearing state and and its stress safety, pass through the long-term of reaction of supports variation tendency
Monitoring can further appreciate that the stability of bridge foundation, predict the working condition of the following bridge foundation；
2. a kind of dynamometry spherical bearing of band detection monitoring system of the utility model passes through fiber grating force-measuring module light
Wave signal intensity detects the vertical bearing capacity of support, does not need to provide power supply, strong antijamming capability, operating condition it is adaptable,
Not only can be improved the accuracy and reliability of detection, but also there is good endurance quality, can artificial detection or automatic detection, pass through net
Network technology is integrated, it can be achieved that in real time to the centralized detecting of multiple Bearing Seat Forces and automatic monitoring by multiple supports networking of structure；
3. a kind of fiber grating force-measuring module of the dynamometry spherical bearing of band detection monitoring system is mounted on base-plate
Side, it is easy for installation, convenient for the maintenance and replacement in later period.
With reference to the accompanying drawings and examples to a kind of dynamometry spherical bearing of band detection monitoring system of the utility model
Technical characteristic is further described.
Detailed description of the invention
Fig. 1 is that a kind of band of the utility model detects the dynamometry spherical bearing structural schematic diagram of monitoring system；
Fig. 2 is the portion the A enlarged drawing of Fig. 1；
Fig. 3 is the portion the B enlarged drawing of Fig. 1；
Fig. 4 is that a kind of detection of dynamometry spherical bearing monitors system schematic；
In figure：
1-support top plate, 2-planar lasting boards, 3-spherical crown steel liner plates, 4-spherical surface wearing plates, 5-concave spherical surface steel linings
Plate, 6-dynamometry elastomers, 7-base-plates, 71-preformed holes, 8-sealing lock ring circles, 9-fiber grating force-measuring modules,
10-signal transmssion lines, 11-(FBG) demodulators, 12-computer systems.
Specific embodiment
A kind of dynamometry spherical bearing of band detection monitoring system, including support top plate 1, base-plate 7 and it is mounted on branch
Spherical crown steel liner plate 3 and concave spherical surface steel liner plate 5 between seat top plate 1 and base-plate 7, the spherical surface and concave spherical surface steel of spherical crown steel liner plate
The concave spherical surface of liner plate is slidably matched, and outer cylinder surface and the 7 pelvic cavity inner wall small―gap suture of base-plate of 5 bottom of concave spherical surface steel liner plate are matched
It closes；The dynamometry spherical bearing further includes detection monitoring system, and the detection monitoring system includes dynamometry elastomer 6, fiber grating
Force-measuring module 9 and external monitoring unit；
The dynamometry elastomer 6 is mounted between 7 pelvic floor of 5 bottom of concave spherical surface steel liner plate and base-plate, dynamometry elasticity
6 outer rim of body is provided with sealing lock ring circle 8, to which dynamometry elastomer 6 is sealed in concave spherical surface steel liner plate 5 and 7 pelvic cavity of base-plate
In enclosure space between bottom；7 lateral surface of base-plate position corresponding with 6 centre-height of dynamometry elastomer is provided with and props up
The preformed hole 71 that seat 7 pelvic cavity of bottom plate communicates, the fiber grating force-measuring module 9 are mounted in preformed hole by internal screw thread, optical fiber
The optical fiber diaphragm of 9 end of grating force-measuring module is in close contact with 6 lateral surface of dynamometry elastomer for being exposed at 71 position of preformed hole；
The external monitoring unit includes (FBG) demodulator 11 and computer system 12, and the input terminal of the (FBG) demodulator passes through signal
Transmission line 10 is connect with the fiber grating force-measuring module 9 being mounted on dynamometry spherical bearing, and the output end of (FBG) demodulator passes through wireless
Network or cable network are connect with computer system, and the computer system setting real-time monitoring and early warning system can receive, storage
Dynamometric support real time data is deposited, and carries out data analysis, processing, graphic software platform and early warning or alarm etc. in time.
Planar slide friction pair is set between 1 bottom surface of support top plate and spherical crown steel lining plate top surface, the planar slide rubs
Wiping secondary includes being welded on the mirror face stainless steel plate of 1 bottom surface of support top plate and adding screw by binder bonding or use anchor mode
Fasten the planar lasting board 2 being embedded in 3 top surface groove of spherical crown steel liner plate, the convex spherical and concave spherical surface of the spherical crown steel liner plate 3
Spherical surface sliding friction pair is set between the concave spherical surface of steel liner plate 5, it is convex that the spherical surface sliding friction pair is coated on spherical crown steel liner plate 3
Stainless steel plate on spherical surface or plating hard chromium layers and fastening by binder bonding plus screw or using anchor mode are embedded in recessed
Spherical surface wearing plate 4 in 5 concave spherical surface groove of spherical surface steel liner plate.
The planar lasting board and spherical surface wearing plate be polytetrafluoroethylene (PTFE) slide plate or modified Teflon slide plate or
Ultrahigh molecular weight polyethylene abrasion-proof slide plate, the planar lasting board and spherical surface wearing plate are bonded using binder and screw mode is inlayed
When embedding, the binder uses insoluble and heat cured binder.
Working principle：
Using dynamometry elastomer 6 in closed pelvic cavity isotropism when pressure-bearing, internal each section pressure is uniform, normal pressure with
The principle essentially identical to 7 basin ring lateral pressure of base-plate of dynamometry elastomer 6（Dynamometry elastomer is one kind in certain process stage
The lower solids elastomeric material with the property of approximate fluid and volume invariability, when the compression by superstructure
When, dynamometry elastomer can unchangeably transmit compression size to all directions）, base-plate pelvic cavity lateral surface is provided with light
Fine grating force-measuring module, optical fiber diaphragm induction 6 compression of the dynamometry elastomer variation of 9 end of fiber grating force-measuring module, output
Pressure wavelength signals are transported on (FBG) demodulator, and (FBG) demodulator is after to wavelength signals analysis processing through wireless network or cable network
After being transferred to computer system processor, it can intuitively show support actual loading and be compared with support normal use load,
It alarms when occurring abnormal, support load is monitored at a distance with realizing；And can be accurate solution structure each section it is interior
Power distribution situation, the rationality verifying of reliability and design to Bridge Design theory.
Above-described embodiment is one of the preferred forms of the utility model, and as transformation, above structure can also.
Claims (3)
1. a kind of dynamometry spherical bearing of band detection monitoring system, including support top plate（1）, base-plate（7）And it is mounted on
Spherical crown steel liner plate between support top plate and base-plate（3）With concave spherical surface steel liner plate（5）, the spherical surface of spherical crown steel liner plate and recessed ball
The concave spherical surface of face steel liner plate is slidably matched, concave spherical surface steel liner plate（5）The outer cylinder surface and base-plate of bottom（7）Pelvic cavity inner wall
Small―gap suture cooperation；
It is characterized in that：It further include detection monitoring system, the detection monitoring system includes dynamometry elastomer（6）, fiber grating
Force-measuring module（9）With external monitoring unit；
The dynamometry elastomer（6）It is mounted on concave spherical surface steel liner plate（5）Bottom and base-plate（7）Between pelvic floor, dynamometry bullet
Property body（6）Outer rim is provided with sealing lock ring circle（8）, to by dynamometry elastomer（6）It is sealed in concave spherical surface steel liner plate（5）With support
Bottom plate（7）In enclosure space between pelvic floor；The base-plate（7）Lateral surface and dynamometry elastomer（6）Centre-height pair
The position answered is provided with the preformed hole communicated with base-plate pelvic cavity（71）, the fiber grating force-measuring module（9）Pass through internal screw thread
It is mounted in preformed hole, fiber grating force-measuring module（9）The optical fiber diaphragm of end and it is exposed at preformed hole（71）The dynamometry bullet at position
Property body（6）Lateral surface is in close contact；
The external monitoring unit includes (FBG) demodulator（11）And computer system（12）, the input terminal of the (FBG) demodulator passes through signal
Transmission line（10）With the fiber grating force-measuring module being mounted on dynamometry spherical bearing（9）Connection, the output end of (FBG) demodulator pass through
Wireless network or cable network are connect with computer system, the computer system setting real-time monitoring and early warning system.
2. a kind of dynamometry spherical bearing of band detection monitoring system as described in claim 1, it is characterised in that：The support top
Plate（1）It is secondary that planar slide friction is set between bottom surface and spherical crown steel lining plate top surface, the planar slide friction pair includes being welded on branch
It the mirror face stainless steel plate of seat top board undersurface and fastens by binder bonding plus screw or using anchor mode and is embedded in spherical crown steel
Liner plate（3）Planar lasting board in the groove of top surface（2）, the spherical crown steel liner plate（3）Convex spherical and concave spherical surface steel liner plate（5）'s
Spherical surface sliding friction pair is set between concave spherical surface, the spherical surface sliding friction pair includes being coated on spherical crown steel liner plate convex spherical not
It rust steel plate or plating hard chromium layers and fastens by binder bonding plus screw or using anchor mode and is embedded in concave spherical surface steel liner plate
（5）Spherical surface wearing plate in concave spherical surface groove（4）.
3. a kind of dynamometry spherical bearing of band detection monitoring system as claimed in claim 2, it is characterised in that：The plane is resistance to
Nog plate and spherical surface wearing plate are that polytetrafluoroethylene (PTFE) slide plate or modified Teflon slide plate or ultra-high molecular weight polyethylene are resistance to
When wear smooth plate, the planar lasting board and spherical surface wearing plate are bonded using binder and screw mode is inlayed, the binder
Using insoluble and heat cured binder.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820329250.3U CN208151851U (en) | 2018-03-09 | 2018-03-09 | A kind of dynamometry spherical bearing of band detection monitoring system |
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| CN201820329250.3U CN208151851U (en) | 2018-03-09 | 2018-03-09 | A kind of dynamometry spherical bearing of band detection monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108342978A (en) * | 2018-03-09 | 2018-07-31 | 柳州东方工程橡胶制品有限公司 | A kind of dynamometry spherical bearing of band detection monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108342978A (en) * | 2018-03-09 | 2018-07-31 | 柳州东方工程橡胶制品有限公司 | A kind of dynamometry spherical bearing of band detection monitoring system |
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