CN102852089A - Pot bearing with horizontal compensation type force sensor - Google Patents
Pot bearing with horizontal compensation type force sensor Download PDFInfo
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- CN102852089A CN102852089A CN201210366345XA CN201210366345A CN102852089A CN 102852089 A CN102852089 A CN 102852089A CN 201210366345X A CN201210366345X A CN 201210366345XA CN 201210366345 A CN201210366345 A CN 201210366345A CN 102852089 A CN102852089 A CN 102852089A
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Abstract
The invention discloses a pot bearing with a horizontal compensation type force sensor and solves the technical problem that the measuring error is large caused by the fact that measurement of a horizontal force is affected by a Poisson's ratio, uneven deformation of a bearing plate, temperature variation and the like. The technical scheme includes that the bearing comprises a pot bearing base plate, a pressure-bearing rubber plate arranged in the bearing base plate, a bearing cover plate, a middle steel liner plate arranged between the bearing cover plate and the pressure-bearing rubber plate and a matched sliding component, a horizontal force sensor arranged between the bearing cover plate and the middle steel liner plate and a matched monitoring circuit. The pot bearing is characterized in that a horizontal prestress compensator is arranged between the horizontal force sensor and the bearing cover plate. The accuracy and reality of the force testing results are improved.
Description
Technical field
The present invention relates to a kind of pot rubber bearing with horizontal load cell, belong to the bridge engineering construction field, particularly a kind of benzvalene form supporting with the level compensating load cell.
Background technology
The bridge supporting is the vitals that the automatic adjusting load in the bridge engineering structure improves stress.The sensor that rationally arranges can send the form of stressed member behind the stressed and stress changes of bridge superstructure parts accurately to detecting instrument and make accurately judgement with the safe condition of the braced structures of judgement bridge and then to bridge supporting safe bearing load situation, to guarantee the adaptive change of the realization stress that the supporting energy is safe and reliable.When bridge was bearing in when design and quality examination, the impact force that simulated earthquake, bump, vehicle overload, the wind that needs to load enough great dynamicses such as carries at the various external force of bringing was carried out rupture test, also needs the synchrodata monitoring simultaneously.
In order to improve and to guarantee that circuit runs at a high speed, vertical and be horizontally disposed with the sensor of the external destructive power of random monitoring in the bridge supporting, in time to take data and to analyze accurately.
In the bridge supporting construction of using at present, realize that there is very large problem in accurately STRESS VARIATION monitoring.Load cell and transmit exists the self adaptation gap of moving about between the external force contact surface, can not certainty factor thereby the supporting loading process China and foreign countries masterpiece that causes burst when adjusting in the self adaptation gap is used for that the distance " zero point " of deformation has, so that Accurate Determining external force changes and deformation monitoring produces greatly error, to such an extent as to lose the meaning of accurate monitoring.When external force is tested, beginning, must setting position initial point and corresponding force value.Therefore, any micro-strain between support body and the sensor all can cause the distortion of sensor, thereby makes the measured value distortion of sensor and cause the error of ergometry value.Poisson's ratio also is Poisson ratio, refers to the lateral strain of material and the ratio of longitudinal strain.Namely when bearing when producing vertical deformation under the vertical force effect, can produce corresponding lateral deformation, namely expand, thereby make horizontal load cell and stopping means contact, but the ergometry value of this moment is not the suffered horizontal loading of supporting, therefore, the dynamometry pattern of this general contact can be subject to the very large impact of malformation.In like manner, the inhomogeneous deformation after base plate is installed, buckling deformation, variations in temperature and the material deformation that causes etc. all can produce to the dynamometry result of this general contact interference, affects measurement result.
Summary of the invention
Horizontal force measurement is subjected to poisson's ratio, base plate inhomogeneous deformation and variations in temperature etc. to affect the technical problem that causes measure error larger in the prior art in order to solve in the present invention, designed a kind of benzvalene form supporting with the level compensating load cell, to solve the larger problem of existing dynamometry supporting measure error.
The present invention for realizing the technical scheme that goal of the invention adopts is, a kind of benzvalene form supporting with the level compensating load cell, comprise the benzvalene form bearing plate in the structure, be arranged on pressure-bearing rubber tile, the supporting plate in the bearing plate and be arranged on supporting plate and the pressure-bearing rubber tile between middle steel liner plate and supporting slide assemblies, and being arranged on horizontal load cell between supporting plate and the middle steel liner plate and supporting observation circuit, improved key is: be provided with horizontal prestressing force expansion loop between described horizontal load cell and the supporting plate.
Key of the present invention is: set up horizontal prestressing force expansion loop at horizontal load cell, guaranteed close contact between horizontal load cell and the support body, avoided causing measure error owing to producing gap formation measurement discontinuous point.Drive flanged plate compact disc spring by screwing pretension bolt, make dish spring aligning mandrel and by mandrel horizontal load cell is produced certain precompression, thereby eliminated the gap between horizontal load cell and the support body, made its contact form become the bonding contact of inseparable prefastening.When the distortion of supporting plate generation Poisson or other distortion, horizontal load cell can be measured these power values of disturbing distortion to produce simultaneously, Data processing in the later stage, these interference values that measure can be eliminated by simple mathematical operation, thereby eliminated the impact of perturbed force on the dynamometry result, improved dynamometry accuracy and authenticity.
The invention has the beneficial effects as follows: eliminated machine deviation, assembly clearance to the impact of force measuring structure; Eliminate the interference of the malformations such as the distortion of supporting Poisson, base plate distortion, temperature deformation to measurement result, improved dynamometry result's accuracy and authenticity; This apparatus structure is simple, and low cost of manufacture is convenient to maintenance and replacing, and is economical and practical.
The present invention is described in detail below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the structural representation that has the benzvalene form supporting of four groups of horizontal load cells among the present invention.
Fig. 2 be among Fig. 1 A-A to sectional view.
In the accompanying drawing, the 1st, supporting plate, 1-1 are deep gouges, the 2nd, stainless steel slide plate, the 3rd, tetrafluoro slide plate, the 4th, vertical load cell, the 5th, middle steel liner plate, the 6th, pressure-bearing rubber tile, the 7th, bearing plate, the 8th, horizontal load cell, 8-1 is mandrel, and 8-2 is the butterfly spring abutment, and 8-3 is the butterfly spring, 8-4 is flanged plate, and 8-5 is pretension bolt.
The specific embodiment
A kind of benzvalene form supporting with the level compensating load cell, comprise bearing plate 7 in the structure, be arranged on pressure-bearing rubber tile 6, the supporting plate 1 in the bearing plate 7 and be arranged on supporting plate 1 and pressure-bearing rubber tile 6 between middle steel liner plate 5 and supporting slide assemblies, and be arranged on horizontal load cell 8 between supporting plate 1 and the middle steel liner plate 5 and supporting observation circuit, be provided with horizontal prestressing force expansion loop between described horizontal load cell 8 and the supporting plate 1.
Described horizontal prestressing force expansion loop is disc spring type or magnetic damper formula or air spring type structure.
Comprise in the structure of the horizontal prestressing force expansion loop of described disc spring type: be arranged on locating hole on the supporting plate 1, pass locating hole and horizontal load cell 8 fixing mandrel 8-1, terminal butterfly spring 8-3 with flanged plate 8-4, it is spacing on supporting plate 1 by pretension bolt 8-5 that the head end of butterfly spring 8-3 is arranged on upper, the terminal flanged plate 8-4 of butterfly spring abutment 8-2 on the mandrel 8-1.
Be arranged on locating hole on the supporting plate 1 with deep gouge 1-1, described butterfly spring abutment 8-2 and butterfly spring 8-3 fall in the deep gouge 1-1.
The axial centre band of steel liner plate 5 is fluted in the middle of described, is provided with vertical load cell 4 in the groove.
Described slide assemblies comprises stainless steel slide plate 2 and the tetrafluoro slide plate 3 that is arranged between supporting plate 1 and the middle steel liner plate 5.
Described horizontal load cell 8 is provided with two groups or four groups, is distributed on the described support body.
Described horizontal load cell 8 is resistance sensor or piezoresistive transducer or vibrating string type sensor.
Key of the present invention is: set up horizontal prestressing force expansion loop at horizontal load cell, guaranteed close contact between horizontal load cell and the support body, avoided causing measure error owing to producing gap formation measurement discontinuous point.Drive flanged plate compact disc spring by screwing pretension bolt, make dish spring aligning mandrel and by mandrel horizontal load cell is produced certain precompression, thereby eliminated the gap between horizontal load cell and the support body, made its contact form become the bonding contact of inseparable prefastening.When the distortion of support body generation Poisson or other distortion, horizontal load cell can be measured these power values of disturbing distortion to produce simultaneously, Data processing in the later stage, these interference values that measure can be eliminated by simple mathematical operation, thereby eliminated the impact of perturbed force on the dynamometry result, improved dynamometry accuracy and authenticity.
Claims (8)
1. benzvalene form supporting with the level compensating load cell, comprise bearing plate (7) in the structure, be arranged on the pressure-bearing rubber tile (6) in the bearing plate (7), supporting plate (1) and be arranged on supporting plate (1) and pressure-bearing rubber tile (6) between middle steel liner plate (5) and supporting slide assemblies, and be arranged on horizontal load cell (8) between supporting plate (1) and the middle steel liner plate (5) and supporting observation circuit, it is characterized in that: be provided with horizontal prestressing force expansion loop between described horizontal load cell (8) and the supporting plate (1).
2. a kind of benzvalene form supporting with the level compensating load cell according to claim 1, it is characterized in that: described horizontal prestressing force expansion loop is disc spring type or magnetic damper formula or air spring type structure.
3. a kind of benzvalene form supporting with the level compensating load cell according to claim 1, it is characterized in that: comprise in the structure of the horizontal prestressing force expansion loop of described disc spring type: be arranged on locating hole on the supporting plate (1), pass locating hole and horizontal load cell (8) fixing mandrel (8-1), terminal butterfly spring (8-3) with flanged plate (8-4), it is spacing on supporting plate (1) by pretension bolt (8-5) that the head end of butterfly spring (8-3) is arranged on upper, the terminal flanged plate (8-4) of butterfly spring abutment (8-2) on the mandrel (8-1).
4. a kind of benzvalene form supporting with the level compensating load cell according to claim 3, it is characterized in that: be arranged on locating hole on the supporting plate (1) with deep gouge (1-1), described butterfly spring abutment (8-2) falls in the deep gouge (1-1) with butterfly spring (8-3).
5. a kind of benzvalene form supporting with the level compensating load cell according to claim 1, it is characterized in that: the axial centre band of steel liner plate (5) is fluted in the middle of described, is provided with vertical load cell (4) in the groove.
6. a kind of benzvalene form supporting with the level compensating load cell according to claim 1, it is characterized in that: described slide assemblies comprises stainless steel slide plate (2) and the tetrafluoro slide plate (3) that is arranged between supporting plate (1) and the middle steel liner plate (5).
7. a kind of benzvalene form supporting with the level compensating load cell according to claim 1, it is characterized in that: described horizontal load cell (8) is provided with two groups or four groups, is distributed on the described benzvalene form support body.
8. a kind of benzvalene form supporting with the level compensating load cell according to claim 1, it is characterized in that: described horizontal load cell (8) is resistance sensor or piezoresistive transducer or vibrating string type sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210366345.XA CN102852089B (en) | 2012-09-28 | 2012-09-28 | Pot bearing with horizontal compensation type force sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210366345.XA CN102852089B (en) | 2012-09-28 | 2012-09-28 | Pot bearing with horizontal compensation type force sensor |
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| Publication Number | Publication Date |
|---|---|
| CN102852089A true CN102852089A (en) | 2013-01-02 |
| CN102852089B CN102852089B (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210366345.XA Active CN102852089B (en) | 2012-09-28 | 2012-09-28 | Pot bearing with horizontal compensation type force sensor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092280A (en) * | 2016-08-17 | 2016-11-09 | 衡水中交信德工程橡塑有限公司 | A kind of large-tonnage force cell |
| CN110409294A (en) * | 2019-07-22 | 2019-11-05 | 成都市新筑路桥机械股份有限公司 | The accurate force-measuring module of convenient changing sensor under a kind of force status for bridge member |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004011197A (en) * | 2002-06-05 | 2004-01-15 | Tokyo Fabric Kogyo Kk | Horizontal force dispersing bearing device |
| JP2008014056A (en) * | 2006-07-07 | 2008-01-24 | Nitta Ind Corp | Horizontal support device |
| CN201738234U (en) * | 2010-08-09 | 2011-02-09 | 中国铁道科学研究院铁道建筑研究所 | Basin rubber support provided with three-dimensional dynamometer |
| CN201896288U (en) * | 2010-12-08 | 2011-07-13 | 中国铁道科学研究院铁道建筑研究所 | Rotatable curved surface steel support seat with three-dimensional dynamometer device |
| CN201915329U (en) * | 2010-12-29 | 2011-08-03 | 衡水宝力工程橡胶有限公司 | Bridge support capable of monitoring horizontal stress state |
| CN202040329U (en) * | 2011-05-18 | 2011-11-16 | 南京凯盛国际工程有限公司 | Sliding seal device |
-
2012
- 2012-09-28 CN CN201210366345.XA patent/CN102852089B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004011197A (en) * | 2002-06-05 | 2004-01-15 | Tokyo Fabric Kogyo Kk | Horizontal force dispersing bearing device |
| JP2008014056A (en) * | 2006-07-07 | 2008-01-24 | Nitta Ind Corp | Horizontal support device |
| CN201738234U (en) * | 2010-08-09 | 2011-02-09 | 中国铁道科学研究院铁道建筑研究所 | Basin rubber support provided with three-dimensional dynamometer |
| CN201896288U (en) * | 2010-12-08 | 2011-07-13 | 中国铁道科学研究院铁道建筑研究所 | Rotatable curved surface steel support seat with three-dimensional dynamometer device |
| CN201915329U (en) * | 2010-12-29 | 2011-08-03 | 衡水宝力工程橡胶有限公司 | Bridge support capable of monitoring horizontal stress state |
| CN202040329U (en) * | 2011-05-18 | 2011-11-16 | 南京凯盛国际工程有限公司 | Sliding seal device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092280A (en) * | 2016-08-17 | 2016-11-09 | 衡水中交信德工程橡塑有限公司 | A kind of large-tonnage force cell |
| CN110409294A (en) * | 2019-07-22 | 2019-11-05 | 成都市新筑路桥机械股份有限公司 | The accurate force-measuring module of convenient changing sensor under a kind of force status for bridge member |
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| Publication number | Publication date |
|---|---|
| CN102852089B (en) | 2014-05-28 |
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Address after: Hengshui City, Hebei Province, 053000 North Park industrial base Taocheng District Road No. 9 Patentee after: Heng an Polytron Technologies Inc Address before: 053000 Daqing East Road, Hebei, China, No. 27, No. Patentee before: Hengshui Rubber Co., Ltd. |