CN204325905U - For the dynamometry elastic body of multidirectional dynamometry ball shaped steel bearing - Google Patents
For the dynamometry elastic body of multidirectional dynamometry ball shaped steel bearing Download PDFInfo
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- CN204325905U CN204325905U CN201420629691.7U CN201420629691U CN204325905U CN 204325905 U CN204325905 U CN 204325905U CN 201420629691 U CN201420629691 U CN 201420629691U CN 204325905 U CN204325905 U CN 204325905U
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Abstract
For the dynamometry elastic body of multidirectional dynamometry ball shaped steel bearing, so that transmission bearing vertical load accurately can be measured, and the normal displacement of beam body can be met and rotate requirement.This dynamometry elastic body is arranged in the installation cavity between the piston of ball shaped steel bearing and lower anchor plate, and its end face, bottom contact with piston, lower anchor plate respectively; The elastomeric end face of this dynamometry has radially load boss uniformly at intervals, the dynamometry elastic body lateral wall corresponding with each load boss offers vertical load cell mounting groove, and the optical fiber duct be opened on dynamometry elastic body lateral wall is communicated with two adjacent vertical load cell mounting grooves.
Description
Technical field
The utility model relates to bridge pad, particularly a kind of dynamometry elastic body 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 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 dynamometry elastic body for multidirectional dynamometry ball shaped steel bearing, accurately can measure transmission bearing vertical load, 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:
Dynamometry elastic body for multidirectional dynamometry ball shaped steel bearing of the present utility model, is characterized in that: this dynamometry elastic body is arranged in the installation cavity between the piston of ball shaped steel bearing and lower anchor plate, and its end face, bottom contact with piston, lower anchor plate respectively; The elastomeric end face of this dynamometry has radially load boss uniformly at intervals, the dynamometry elastic body lateral wall corresponding with each load boss offers vertical load cell mounting groove, and the optical fiber duct be opened on dynamometry elastic body lateral wall is communicated with two adjacent vertical load cell mounting grooves.
The beneficial effects of the utility model it is possible to real―time precision measurment transmission bearing vertical load, and are judged bridge force-bearing state by remote control center, and simple and reliable for structure, 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.Compare traditional Dynamometric support precision and improve 5-10 doubly; Dynamometry elastic body geometry 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; Application life can reach 20 years, good endurance, is specially adapted to natural environment foul ground.
Accompanying drawing explanation
This manual comprises following four width accompanying drawings:
Fig. 1 is that the dynamometry elastic body of the utility model for multidirectional dynamometry ball shaped steel bearing is at multidirectional dynamometry ball shaped steel bearing installation site schematic diagram;
Fig. 2 is the dynamometry elastomeric front view of the utility model for multidirectional dynamometry ball shaped steel bearing;
Fig. 3 is the dynamometry elastomeric stereogram of the utility model for multidirectional dynamometry ball shaped steel bearing;
Fig. 4 is the dynamometry elastomeric top view of the utility model for 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; Dynamometry elastic body 20, load boss 21, vertical load cell mounting groove 22, optical fiber duct 23, dowel hole 24.
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.Dynamometry elastic body 20 is arranged in the installation cavity between the piston 12 of ball shaped steel bearing and lower anchor plate 13, and its end face, bottom contact with piston 12, lower anchor plate 13 respectively.The end face of 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.Vertical load cell mounting groove 22 internal fixtion arranges sputtered thin film pressure transducer.
With reference to Fig. 2, Fig. 3 and Fig. 4, 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.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, and the height of dynamometry elastic body 20 is 1 to 100/40th millimeters of its diameter.
The above the utility model more elastomeric principle of dynamometry for multidirectional dynamometry ball shaped steel bearing that just explain 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 (4)
1. for the dynamometry elastic body of multidirectional dynamometry ball shaped steel bearing, it is characterized in that: this dynamometry elastic body (20) is arranged in the installation cavity between the piston (12) of ball shaped steel bearing and lower anchor plate (13), its end face, bottom contact with piston (12), lower anchor plate (13) respectively; The end face of this 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).
2. a kind of multidirectional dynamometry ball shaped steel bearing as claimed in claim 1, it is characterized in that: described dynamometry elastic body (20) has to the vertical dowel hole (24) extended, and alignment pin correspondence is arranged on the lower anchor plate (13) of ball shaped steel bearing.
3. a kind of multidirectional dynamometry ball shaped steel bearing as claimed in claim 1, is characterized in that: the ratio of the described top area sum of each load boss (21) and the sectional area of vertical proving ring (20) is 55.1%-59.0%.
4. 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) is 1 to 100/40th millimeters of its diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420629691.7U CN204325905U (en) | 2014-10-28 | 2014-10-28 | For the dynamometry elastic body of multidirectional dynamometry ball shaped steel bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420629691.7U CN204325905U (en) | 2014-10-28 | 2014-10-28 | For the dynamometry elastic body of multidirectional dynamometry ball shaped steel bearing |
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| CN204325905U true CN204325905U (en) | 2015-05-13 |
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| CN201420629691.7U Active CN204325905U (en) | 2014-10-28 | 2014-10-28 | For the dynamometry elastic body of multidirectional dynamometry ball shaped steel bearing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108603753A (en) * | 2016-03-16 | 2018-09-28 | 横滨橡胶株式会社 | The interior perimeter measurement device of round member |
| CN109000832A (en) * | 2018-06-25 | 2018-12-14 | 同济大学 | A kind of Dynamic High-accuracy six-way force snesor |
-
2014
- 2014-10-28 CN CN201420629691.7U patent/CN204325905U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108603753A (en) * | 2016-03-16 | 2018-09-28 | 横滨橡胶株式会社 | The interior perimeter measurement device of round member |
| CN108603753B (en) * | 2016-03-16 | 2020-08-04 | 横滨橡胶株式会社 | Inner circumference measuring device for circular member |
| CN109000832A (en) * | 2018-06-25 | 2018-12-14 | 同济大学 | A kind of Dynamic High-accuracy six-way force snesor |
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