CN204359468U - For the proving ring of multidirectional dynamometry ball shaped steel bearing - Google Patents
For the proving ring of multidirectional dynamometry ball shaped steel bearing Download PDFInfo
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- CN204359468U CN204359468U CN201420629701.7U CN201420629701U CN204359468U CN 204359468 U CN204359468 U CN 204359468U CN 201420629701 U CN201420629701 U CN 201420629701U CN 204359468 U CN204359468 U CN 204359468U
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Abstract
For the proving ring of multidirectional dynamometry ball shaped steel bearing, so that transmission bearing accurately can be measured respectively to horizontal loading.This proving ring is arranged at the upper bracket plate bottom part ring of ball shaped steel bearing between boss and piston annular lateral wall, proving ring lateral wall has the groove that radial equipartition is offered, offer radial force cell mounting groove in each groove, the optical fiber duct be opened on proving ring lateral wall is communicated with two adjacent grooves.
Description
Technical field
The utility model relates to bridge pad, particularly a kind of proving ring for multidirectional dynamometry ball shaped steel bearing.
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 usability and the security 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 structure 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 disaster such as earthquake, typhoon, by measure bridge superstructure to substructure acting forces such as bridge piers, set up bridge structure disaster fingerprint database safety assessment, 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 measuring accuracy difference of measurement range.
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 glutinousness, 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 feature 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 environmental impact 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, serviceable 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 instructions of CN102912722A, this multidirectional Dynamometric support structurally comprises upper bracket plate, the combination bottom, base and multiple pressure transducers 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 transducer 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 slab at rest base, becomes and measures horizontal pressure force, be scaled vertical load size according to meeting occurred level stream after rubber slab pressure-bearing.Which is not directly measure Bearing Seat Force body upper stress strain size, and measuring accuracy is low; Secondly, rubber layer is easily aging, and serviceable life cannot ensure; Again, system of measuring requires higher to bearing environment for use, and measuring accuracy varies with temperature, and bearing daily servicing requires higher, and measurement 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 tenure of use 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 proving ring for multidirectional dynamometry ball shaped steel bearing, accurately can measure transmission bearing respectively to horizontal loading.
It is as follows that the utility model solves the technical scheme that its technical matters adopts:
Proving ring for multidirectional dynamometry ball shaped steel bearing of the present utility model, it is characterized in that: this proving ring is arranged at the upper bracket plate bottom part ring of ball shaped steel bearing between boss and piston annular lateral wall, proving ring lateral wall has the groove that radial equipartition is offered, offer radial force cell mounting groove in each groove, the optical fiber duct be opened on proving ring lateral wall is communicated with two adjacent grooves.
The beneficial effects of the utility model it is possible to real―time precision measurment transmission bearing respectively to horizontal loading, and are judged bridge force-bearing state by remote control center, simple and reliable for structure, support body adopts ball shaped steel bearing, and bearing load-bearing 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 horizontal force measuring accuracy reaches 1%FS, compare traditional Dynamometric support precision and improve 5-10 doubly; Proving ring geometric configuration is drawn by analytical calculation, optimizes the load state of structure, can reflect bearing STRESS VARIATION delicately, and reduce installation difficulty and set-up time, can realize the independent replacing of device for measuring force, does not affect bearing and uses; Serviceable life can reach 20 years, good endurance, is specially adapted to physical environment foul ground.
Accompanying drawing explanation
This instructions comprises following eight width accompanying drawings:
Fig. 1 is the mounting means schematic diagram of the utility model for the proving ring of multidirectional dynamometry ball shaped steel bearing;
Fig. 2 is the vertical view of the utility model for the proving ring of multidirectional dynamometry ball shaped steel bearing;
Fig. 3 is the stereographic map of the utility model for the proving ring of multidirectional dynamometry ball shaped steel bearing;
Fig. 4 is the front view of the utility model for the proving ring of multidirectional dynamometry ball shaped steel bearing;
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; Proving ring 30, groove 31, radial force cell mounting groove 31a, optical fiber duct 32, dowel hole 34.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
With reference to Fig. 1, multidirectional dynamometry ball shaped steel bearing 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.Proving ring 30 is arranged at upper bracket plate 10 bottom part ring of ball shaped steel bearing between boss 10a and piston 12 annular outboard wall.With reference to Fig. 2, Fig. 3 and Fig. 4, proving ring 30 lateral wall has the groove 31 that radial equipartition is offered, offer radial force 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.Sputtered thin film pressure transducer is fixedly installed at radial force cell mounting groove 31a.
See figures.1.and.2, described proving ring 30 has to the vertical dowel hole 34 extended, and register 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 madial 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 force 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, floorage 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 force cell mounting groove 31a.
Some principles of a kind of proving ring for 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 (3)
1. for the proving ring of multidirectional dynamometry ball shaped steel bearing, it is characterized in that: this proving ring (30) is arranged at upper bracket plate (10) bottom part ring of ball shaped steel bearing between boss (10a) and piston (12) annular outboard wall, proving ring (30) lateral wall has the groove (31) that radial equipartition is offered, offer radial force 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).
2. as claimed in claim 1 for the proving ring of multidirectional dynamometry ball shaped steel bearing, it is characterized in that: described proving ring (30) has to the vertical dowel hole (34) extended, register pin correspondence is arranged on the annular cover plate (14) of ball shaped steel bearing, and annular cover plate (14) removably connects with the lower surface of upper bracket plate (10) hoop boss (10a).
3., as claimed in claim 2 for the proving ring of multidirectional dynamometry ball shaped steel bearing, it is characterized in that: floorage sum and proving ring (30) the lateral wall area ratio of described each groove (31) are 31.5%-39.2%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420629701.7U CN204359468U (en) | 2014-10-28 | 2014-10-28 | For the proving ring of multidirectional dynamometry ball shaped steel bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420629701.7U CN204359468U (en) | 2014-10-28 | 2014-10-28 | For the proving ring of multidirectional dynamometry ball shaped steel bearing |
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| Publication Number | Publication Date |
|---|---|
| CN204359468U true CN204359468U (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420629701.7U Active CN204359468U (en) | 2014-10-28 | 2014-10-28 | For the proving ring of multidirectional dynamometry ball shaped steel bearing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440636A (en) * | 2018-12-27 | 2019-03-08 | 成都亚佳工程新技术开发有限公司 | A kind of sensor replaceability dynamometry ball shaped steel bearing |
| CN111487002A (en) * | 2020-04-21 | 2020-08-04 | 石家庄铁道大学 | Force measuring method for bridge spherical support |
-
2014
- 2014-10-28 CN CN201420629701.7U patent/CN204359468U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440636A (en) * | 2018-12-27 | 2019-03-08 | 成都亚佳工程新技术开发有限公司 | A kind of sensor replaceability dynamometry ball shaped steel bearing |
| CN109440636B (en) * | 2018-12-27 | 2024-04-19 | 成都亚佳工程新技术开发有限公司 | Ball-shaped steel support for measuring force of sensor replaceability |
| CN111487002A (en) * | 2020-04-21 | 2020-08-04 | 石家庄铁道大学 | Force measuring method for bridge spherical support |
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| GR01 | Patent grant |