CN204185764U - A kind of multidirectional dynamometry ball shaped steel bearing - Google Patents
A kind of multidirectional dynamometry ball shaped steel bearing Download PDFInfo
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- CN204185764U CN204185764U CN201420629851.8U CN201420629851U CN204185764U CN 204185764 U CN204185764 U CN 204185764U CN 201420629851 U CN201420629851 U CN 201420629851U CN 204185764 U CN204185764 U CN 204185764U
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- dynamometry
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Abstract
A kind of multidirectional dynamometry ball shaped steel bearing, vertical and each to horizontal loading so that transmission bearing accurately can be measured, and the normal displacement of beam body can be met and rotate requirement.Comprise upper bracket plate, spherical crown liner plate, piston and lower anchor plate.The bottom of described upper bracket plate has the hoop boss to downward-extension, and arrange proving ring between this hoop boss and annular outboard wall of piston, on proving ring, radially interval arranges radial load cell.Have an installation cavity between described piston and lower anchor plate, install in cavity the dynamometry elastic body arranging its end face, bottom and contact with piston, lower anchor plate respectively, on this dynamometry elastic body, radially interval arranges vertical load cell.
Description
Technical field
The utility model relates to bridge pad, particularly the multidirectional dynamometry ball shaped steel bearing of one.
Background technology
Since reform and opening-up, benefited from the rapid growth of China's economy, the transportation of China obtains tremendous development.But meanwhile, in highway in China, illegal overloading is also more and more serious.Bearing for a long time under the Vehicle Load exceeding design level, bridge constantly sustains damage, and functional performance and the safety of structure suffer damage.At present, due to overload, the generation of the bridge collapse accident that existing many social influences are severe.By the measurement to bridge pad stressing conditions, can judge whether bridge construction is in normal operating condition, realize the early warning of health monitoring to bridge operation state and extreme event, the sexual behavior that averts a calamity thus generation.Simultaneously, under the effect of the natural calamity such as earthquake, typhoon, by measure bridge superstructure to substructure active forces such as bridge piers, set up bridge construction disaster fingerprint database security evaluation, the optimal decision of bridge substructure and preventing and reducing natural disasters had great importance.
At present, the Dynamometric support applied is directly installed on seat structure parts by existing Dynamometric support sensor, there is the deficiency of the little and certainty of measurement difference of measurement category.
Sensor is the position of Dynamometric support core the most, and existing Dynamometric support sensor mainly contains conventional hydraulic measurement mechanism and adhering resistance formula strain transducer.
Hydraulic measurement device is mainly used on pot rubber bearing, is pre-plugged oil pocket in the pressure-bearing rubber of bearing, and is provided with oil nozzle and outside UNICOM, and calculate Bearing Seat Force by measuring fuel pressure gage, method of testing is backwardness comparatively, and precision is low.In addition, because liquid has viscosity, hydraulic measurement device can not be used for dynamic load test, and can only measure vertical force.Because fluid pressure type basin type rubber force-testing support technical performance falls behind, the limitation of measurement is comparatively large, fails so far to obtain large-scale promotion application.
Resistance strain development time is longer, technology maturation, but comparatively large by the ambient influnence such as temperature, humidity, is difficult to accurately, monitors for a long time, in real time and record the stressing conditions of bearing, and there is certain obstacle to the accurate measurement of displacement.Adhesive type foil gauge poor durability, application life is short.
To sum up, up to the present a kind of multidirectional Dynamometric support of technological performance is not still had to be widely applied both at home and abroad.For the multidirectional Dynamometric support of a kind of ball-type disclosed in the application for a patent for invention manual of CN102912722A, this multidirectional Dynamometric support structurally comprises upper bracket plate, the combination bottom, base and multiple pressure sensors etc., the bottom surface of upper bracket plate is convex spherical interior surface, the end face of the combination bottom is recessed spherical interior surface, this recessed spherical interior surface is spliced by two identical recessed spherical interior surfaces or four identical recessed spherical interior surfaces, upper bracket plate and the combination bottom are sphere-contact, and multiple pressure sensor is in the horizontal direction between the combination bottom and the wall of base.Exist following not enough:
(1) measurement of its vertical force is by arranging rubber tile at rest base, becomes and measures horizontal pressure force, be scaled vertical load size according to meeting occurred level stream after rubber tile pressure-bearing.Which is not directly measure Bearing Seat Force body upper stress strain size, and certainty of measurement is low; Secondly, rubber layer is easily aging, and application life cannot ensure; Again, system of measuring requires higher to bearing environment for use, and certainty of measurement varies with temperature, and bearing regular maintenance requires higher, and survey data easily occurs drift phenomenon, thus causes measurement system to lose efficacy;
(2) measurement of this patent horizontal force adopts and is arranged in sensor on two side rails and vertical with guide rail to realize, and accurately can only measure the unidirectional horizontal force in vertical guide rail direction, cannot realize arbitrarily to the accurate measurement of horizontal force.
(3) sensor adopts gluing mode to connect, and easily causes sensor to come off, thus cause measurement system to lose efficacy within service life owing to bearing dynamic load for a long time.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of multidirectional dynamometry ball shaped steel bearing, vertical and each to horizontal loading accurately can measure transmission bearing, and can meet the normal displacement of beam body and rotate requirement.
It is as follows that the utility model solves the technical scheme that its technical problem adopts:
The multidirectional dynamometry ball shaped steel bearing of one of the present utility model, comprise upper bracket plate, spherical crown liner plate, piston and lower anchor plate, it is characterized in that: the bottom of described upper bracket plate has the hoop boss to downward-extension, arrange proving ring between this hoop boss and annular outboard wall of piston, on proving ring, radially interval arranges radial load cell; Have an installation cavity between described piston and lower anchor plate, install in cavity the dynamometry elastic body arranging its end face, bottom and contact with piston, lower anchor plate respectively, on this dynamometry elastic body, radially interval arranges vertical load cell.
It is vertical and each to horizontal loading that the beneficial effects of the utility model it is possible to real―time precision measurment transmission bearing, and judged bridge force-bearing state by remote control center, simple and reliable for structure, support body adopts ball shaped steel bearing, and bearing supporting capacity is large, long service life; Dynamometry sensor is not arranged on protocorm shaped steel support body component, little to support body structural modification, goes for different types of rridges, can meet the normal displacement of beam body and rotate requirement; Bearing vertical force and horizontal force are separately measured, and vertical force certainty of measurement can reach 0.1%FS.Horizontal force certainty of measurement is 1%FS, compares traditional Dynamometric support precision and improves 5-10 doubly; Proving ring, dynamometry elastic body geometry are drawn by analytical calculation, optimize the load state of structure, bearing STRESS VARIATION can be reflected delicately, and reduce installation difficulty and set-up time, the independent replacing of device for measuring force can be realized, do not affect bearing and use; Application life can reach 20 years, good endurance, is specially adapted to natural environment foul ground.
Accompanying drawing explanation
This manual comprises following eight width accompanying drawings:
Fig. 1 is the structural representation of a kind of multidirectional dynamometry ball shaped steel bearing of the utility model;
Fig. 2 is the top view of a kind of multidirectional dynamometry ball shaped steel bearing of the utility model;
Fig. 3 is the elastomeric front view of dynamometry in a kind of multidirectional dynamometry ball shaped steel bearing of the utility model;
Fig. 4 is the elastomeric stereogram of dynamometry in a kind of multidirectional dynamometry ball shaped steel bearing of the utility model;
Fig. 5 is the elastomeric top view of dynamometry in a kind of multidirectional dynamometry ball shaped steel bearing of the utility model;
Fig. 6 is the top view of proving ring in a kind of multidirectional dynamometry ball shaped steel bearing of the utility model;
Fig. 7 is the stereogram of proving ring in a kind of multidirectional dynamometry ball shaped steel bearing of the utility model;
Fig. 8 is the front view of proving ring in a kind of multidirectional dynamometry ball shaped steel bearing of the utility model;
Component and corresponding mark is marked: upper bracket plate 10, hoop boss 10a, spherical crown liner plate 11, piston 12, lower anchor plate 13, annular cover plate 14 in figure; Dynamometry elastic body 20, load boss 21, vertical load cell mounting groove 22, optical fiber duct 23, dowel hole 24; Proving ring 30, groove 31, radial load cell mounting groove 31a, optical fiber duct 32, dowel hole 34.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated.
See figures.1.and.2, the multidirectional dynamometry ball shaped steel bearing of one of the present utility model comprises upper bracket plate 10, spherical crown liner plate 11, piston 12 and lower anchor plate 13, be provided with wearing plate between the upper plane of spherical crown liner plate 11 and upper bracket plate 10 bottom surface, between the lower peripheral surface of spherical crown liner plate 11 and piston 12 times concave spherical surfaces, be provided with wearing plate.The bottom of described upper bracket plate 10 has the hoop boss 10a to downward-extension, and arrange proving ring 30 between this hoop boss 10a and annular outboard wall of piston 12, on proving ring 30, radially interval arranges radial load cell.Have an installation cavity between described piston 12 and lower anchor plate 13, install in cavity the dynamometry elastic body 20 arranging its end face, bottom and contact with piston 12, lower anchor plate 13 respectively, on this dynamometry elastic body 20, radially interval arranges vertical load cell.
Described radial load cell, vertical load cell all adopt sputtered thin film pressure transducer.
Compared with present Dynamometric support, a kind of multidirectional dynamometry ball shaped steel bearing of the present invention has the advantage of following several respects:
(1) bearing can be transmitted vertically with each to horizontal loading by real―time precision measurment, and by remote control center, bridge force-bearing state be judged.Simple and reliable for structure, support body adopts ball shaped steel bearing, and bearing supporting capacity is large, long service life.Dynamometry sensor is not arranged on protocorm shaped steel support body component, little to support body structural modification, goes for different types of rridges, can meet the normal displacement of beam body and rotate requirement.
(2) bearing vertical force and horizontal force are separately measured, and it is 1%FS that vertical force certainty of measurement can reach 0.1%FS. horizontal force certainty of measurement, compare traditional Dynamometric support precision and improve 5-10 doubly.
(3) geometry of elastic body (dynamometry elastic body 20, proving ring 30) is drawn by analytical calculation, optimizes the load state of structure, can reflect bearing STRESS VARIATION delicately.Elastic body material selection special steel material, fatigue performance is strong, can effective guarantee certainty of measurement within application life.Adopt the elastic body device for measuring force of original creation design, reduce installation difficulty and set-up time, the independent replacing of device for measuring force can be realized, do not affect bearing and use.
(4) adopt elastic body dynamometry scenario-frame simple, be suitable for bearing bearing capacity scope large (1000kN-80000kN).And the program is changed little to traditional bearing, versatility is extremely strong, can replacing time body construction, elastic body is used for the various bearing such as pot rubber bearing, friction pendulum support, realizes the intelligent dynamometry of bridge pad.
(5) radial load cell, vertical load cell adopt novel high-precision sputtering film type sensor, the sputtering type sensor by measuring liquid, gas pressure intensity of novelty, repacking for measuring structural stress.Change sensor base material, and adopting advanced package technologies to replace the stickup mounting method of traditional foil gauge, its temperature sensitivity is reduced, and multidirectional dynamometry ball shaped steel bearing additionally need not carry out temperature-compensating, and it is not sputtered film sensor energy consumption is low, high to power demands.
(6) 20 years can be reached, good endurance application life, be specially adapted to natural environment foul ground.
With reference to Fig. 3, Fig. 4 and Fig. 5, the end face of described dynamometry elastic body 20 has radially load boss 21 uniformly at intervals, dynamometry elastic body 20 lateral wall corresponding with each load boss 21 offers vertical load cell mounting groove 22, and the optical fiber duct 23 be opened on dynamometry elastic body 20 lateral wall is communicated with two adjacent vertical load cell mounting grooves 22.Described vertical proving ring 20 has to the vertical dowel hole 24 extended, and alignment pin correspondence is arranged on lower anchor plate 13.The quantity of load boss 21 is determined according to sensor usage quantity, is generally 4-8.After a large amount of Finite Element Simulation Analysis and the choosing of parameter optimization ratio, under the prerequisite ensureing safety of structure, improve the force sensitive of measuring point as far as possible, the described top area sum of each load boss 21 is 55.1%-59.0% with the ratio of the sectional area of dynamometry elastic body 20.
With reference to Fig. 6, Fig. 7 and Fig. 8, described proving ring 30 lateral wall has radial equipartition and offers groove 31, offer radial load cell mounting groove 31a in each groove groove 31, the optical fiber duct 32 be opened on proving ring 30 lateral wall is communicated with two adjacent grooves 31.Described proving ring 30 has to the vertical dowel hole 34 extended, and alignment pin correspondence is arranged on annular cover plate 14, and annular cover plate 14 removably connects with the lower surface of upper bracket plate 10 hoop boss 10a.The inside wall of proving ring 30 contacts power transmission with the lateral wall of piston 12, according to the Force principle of annular construction member any direction extruding, can determine that on groove 31, radial load cell usage quantity is 4.After a large amount of Finite Element Simulation Analysis and the choosing of parameter optimization ratio, under the prerequisite ensureing safety of structure, improve the force sensitive of measuring point as far as possible, floor space sum and the proving ring 30 lateral wall area ratio of described each groove 31 are 31.5%-39.2%, and groove 31 center arranges radial load cell mounting groove 31a.The height of described dynamometry elastic body 20, proving ring 30 is 1 to 100/40th millimeters of its diameter.
Some principles of a kind of multidirectional dynamometry ball shaped steel bearing of the above the utility model that just explains through diagrams, be not the utility model to be confined to shown in and in described concrete structure and the scope of application, therefore every corresponding modify of being likely utilized and equivalent, all belong to the scope of the claims that the utility model is applied for.
Claims (9)
1. a multidirectional dynamometry ball shaped steel bearing, comprise upper bracket plate (10), spherical crown liner plate (11), piston (12) and lower anchor plate (13), wearing plate is provided with between the upper plane of spherical crown liner plate (11) and upper bracket plate (10) bottom surface, wearing plate is provided with between concave spherical surface under the lower peripheral surface of spherical crown liner plate (11) and piston (12), it is characterized in that: the bottom of described upper bracket plate (10) has the hoop boss (10a) to downward-extension, between this hoop boss (10a) and annular outboard wall of piston (12), proving ring (30) is set, on proving ring (30), radially interval arranges radial load cell, there is between described piston (12) and lower anchor plate (13) an installation cavity, install in cavity the dynamometry elastic body (20) arranging its end face, bottom and contact with piston (12), lower anchor plate (13) respectively, on this dynamometry elastic body (20), radially interval arranges vertical load cell.
2. a kind of multidirectional dynamometry ball shaped steel bearing as claimed in claim 1, it is characterized in that: the end face of described dynamometry elastic body (20) has radially load boss (21) uniformly at intervals, dynamometry elastic body (20) lateral wall corresponding with each load boss (21) offers vertical load cell mounting groove (22), and the optical fiber duct (23) be opened on dynamometry elastic body (20) lateral wall is communicated with two adjacent vertical load cell mounting grooves (22).
3. a kind of multidirectional dynamometry ball shaped steel bearing as claimed in claim 2, is characterized in that: described dynamometry elastic body (20) has to the vertical dowel hole (24) extended, and alignment pin correspondence is arranged on lower anchor plate (13).
4. a kind of multidirectional dynamometry ball shaped steel bearing as claimed in claim 2, is characterized in that: the ratio of the described top area sum of each load boss (21) and the sectional area of dynamometry elastic body (20) is 55.1%-59.0%.
5. a kind of multidirectional dynamometry ball shaped steel bearing as claimed in claim 1, it is characterized in that: described proving ring (30) lateral wall has radial equipartition and offer groove (31), offer radial load cell mounting groove (31a) in each groove (31), the optical fiber duct (32) be opened on proving ring (30) lateral wall is communicated with two adjacent grooves (31).
6. a kind of multidirectional dynamometry ball shaped steel bearing as claimed in claim 5, it is characterized in that: described proving ring (30) has to the vertical dowel hole (34) extended, alignment pin correspondence is arranged on annular cover plate (14), and annular cover plate (14) removably connects with the lower surface of upper bracket plate (10) hoop boss (10a).
7. a kind of multidirectional dynamometry ball shaped steel bearing as claimed in claim 5, is characterized in that: floor space sum and proving ring (30) the lateral wall area ratio of described each groove (31) are 31.5%-39.2%.
8. a kind of multidirectional dynamometry ball shaped steel bearing as claimed in claim 1, is characterized in that: described radial load cell, vertical load cell all adopt sputtered thin film pressure transducer.
9. a kind of multidirectional dynamometry ball shaped steel bearing as claimed in claim 1, is characterized in that: the height of described dynamometry elastic body (20), proving ring (30) is 1 to 100/40th millimeters of its diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420629851.8U CN204185764U (en) | 2014-10-28 | 2014-10-28 | A kind of multidirectional dynamometry ball shaped steel bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420629851.8U CN204185764U (en) | 2014-10-28 | 2014-10-28 | A kind of multidirectional dynamometry ball shaped steel bearing |
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| Publication Number | Publication Date |
|---|---|
| CN204185764U true CN204185764U (en) | 2015-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420629851.8U Withdrawn - After Issue CN204185764U (en) | 2014-10-28 | 2014-10-28 | A kind of multidirectional dynamometry ball shaped steel bearing |
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| CN (1) | CN204185764U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104294756A (en) * | 2014-10-28 | 2015-01-21 | 中铁二院工程集团有限责任公司 | Multi-direction force measuring ball type steel support |
| CN106223191A (en) * | 2016-09-26 | 2016-12-14 | 北京神州陆友科技发展有限公司 | A kind of smart bridge bearing |
| CN111663437A (en) * | 2020-07-07 | 2020-09-15 | 山东交通学院 | Anti-overturning spherical support |
-
2014
- 2014-10-28 CN CN201420629851.8U patent/CN204185764U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104294756A (en) * | 2014-10-28 | 2015-01-21 | 中铁二院工程集团有限责任公司 | Multi-direction force measuring ball type steel support |
| CN106223191A (en) * | 2016-09-26 | 2016-12-14 | 北京神州陆友科技发展有限公司 | A kind of smart bridge bearing |
| CN106223191B (en) * | 2016-09-26 | 2017-12-22 | 北京神州陆友科技发展有限公司 | A kind of smart bridge bearing |
| CN111663437A (en) * | 2020-07-07 | 2020-09-15 | 山东交通学院 | Anti-overturning spherical support |
| CN111663437B (en) * | 2020-07-07 | 2022-03-01 | 山东交通学院 | Anti-overturning spherical support |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150304 Effective date of abandoning: 20160817 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |