CN206378381U - Wheeled load bridge and pavement fatigue pilot system - Google Patents
Wheeled load bridge and pavement fatigue pilot system Download PDFInfo
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- CN206378381U CN206378381U CN201621305427.3U CN201621305427U CN206378381U CN 206378381 U CN206378381 U CN 206378381U CN 201621305427 U CN201621305427 U CN 201621305427U CN 206378381 U CN206378381 U CN 206378381U
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- pilot system
- loading dolly
- wheeled load
- loading
- load bridge
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Abstract
The utility model discloses a kind of wheeled load bridge and pavement fatigue pilot system, including counter-force ground, combined bearing frame, tested sample, load dolly, the tested sample is fixed on the counter-force ground, the counter-force ground and the combined bearing frame interfix, the loading dolly is positioned in the tested sample, horizontal gird is provided with the combined bearing frame, it is described loading car top be connected on the horizontal gird and it is described loading dolly can relatively described horizontal gird move left and right, servomotor is additionally provided with the horizontal gird, the servomotor drives loading dolly to move left and right by slider-crank mechanism, the roller of the controllable loading dolly of electro-hydraulic servo actuator on loading dolly is moved up and down in vertical direction.The wheeled load bridge of the utility model and pavement fatigue pilot system, can carry out full-scale bridge and be tested with pavement fatigue, it is ensured that bridge and road safety.
Description
Technical field
The utility model is related to a kind of test device, more particularly to a kind of full-scale steel structure bridge sample or road surface examination
The Test System For Fatigue Properties of sample.
Background technology
In national economy extensive developing period, road, bridge structure design based on analogy method, either design
Accuracy or reasonability are not the emphasis considered.Such design method is in mainly use conventional material and conventional structure
In design, although heuristic methods have larger design error, because there is the experience and relatively advanced computer of forefathers
Simulate computing technique, final result or acceptable.
Since 21st century, modernization of the country construction is developed rapidly, and various new constructions, new material emerge in an endless stream,
All kinds of contradictions that product and the developing direction and shortage of resources of engineering maximization, integration and complication trigger, set analogy
Meter encounters increasing challenge, and new construction causes without the similar successful experience that can be used for reference with new diseases,
The risk of ultra-large engineering design and the general requirement for reducing cost that economizes on resources are also to heavy construction in the design phase
Verification experimental verification become even more important and essential.The structure that must take into consideration during design and use is in complicated extraneous bar
The key technical index such as the fatigue life under part, analogy method without project that can be because can not implement for reference, simple base
Also become increasingly conspicuous in the integrity problem of the engineering design of finite element analysis.
Because application standard material sample or the presumption of small size large-scale model are difficult the complete of acquisition overall structure performance
Reliable data, in order to meet the above-mentioned requirements of objective reality, modern structural experiment must complete to be tried by past single component
Test the conversion to integral model test and sufficient dimension test.And carried out for the structure that composite is constituted, or even with computer
Multi parameter analysis also is difficult to presumption, to ensure that safety must be carried out close to practical structures or full-scale test.Meanwhile, science and technology
Development particularly computer technology, electronic technology, automatic control technology and Hydraulic servo technology develop rapidly for structure try
Test the development with monitoring technology and provide solid foundation, provided for the design of various labyrinths, experiment and monitoring strong
Guarantee, promote the development of structural design theory.Therefore, each state is all being directed to full size bridge and pavement fatigue examination in the world
Test the developmental research of instrument.
The utility model is based on electro-hydraulic servo and pinpoints fatigue loading and the stepless high-precision speed regulating control technology of servomotor, if
The swinging eccentric wheel driven by servomotor plus crank connecting link reciprocating systems are counted and with the control of electro-hydraulic servo load
Wheeled loading system composition wheeled load bridge and pavement fatigue pilot system, be mainly used in large bridge and the foot on road surface
The wheeled load fatigue performance test of chi sample.
Utility model content
The purpose of this utility model is to provide a kind of wheeled load bridge and pavement fatigue pilot system, above-mentioned existing to solve
The problem of with the presence of technology, it can carry out full-scale bridge and be tested with pavement fatigue, it is ensured that bridge and road safety.
To achieve the above object, the utility model provides following scheme：A kind of wheeled load bridge is tried with pavement fatigue
Check system, including counter-force ground, combined bearing frame, tested sample, loading dolly, the tested sample is fixed on described anti-
On power ground, the counter-force ground and the combined bearing frame interfix, and the loading dolly is positioned over described tested
On sample, horizontal gird is provided with the combined bearing frame, the loading car top is connected to the horizontal gird
Upper and described loading dolly can relatively described horizontal gird move left and right, be additionally provided with servomotor on the horizontal gird,
Slider-crank mechanism is set between the servomotor and the loading dolly, and the servomotor passes through the crank block machine
Structure drives the loading dolly to move left and right, and is provided with electro-hydraulic servo actuator on the loading dolly, the electro-hydraulic servo is made
The roller of the dynamic device connection loading dolly, the roller can be moved up and down in vertical direction.
The wheeled load bridge of the utility model and pavement fatigue pilot system, wherein, the horizontal gird can be along described group
Box-like bearing frame is moved up and down in vertical direction.
The wheeled load bridge of the utility model and pavement fatigue pilot system, wherein, pacify on the combined bearing frame
Driving oil cylinder equipped with several synchronization actions, the horizontal gird is fixed on the piston rod of each driving oil cylinder.
The wheeled load bridge of the utility model and pavement fatigue pilot system, wherein, it is provided with the loading dolly straight
Line rolling guiding mechanism.
The wheeled load bridge of the utility model and pavement fatigue pilot system, wherein, the loading dolly also includes installing
Frame and rolling wheel support, the roller are removably mounted on the rolling wheel support, and the electro-hydraulic servo actuator is arranged at described
On mounting bracket, the rolling wheel support upper end is fixed on the piston rod of the electro-hydraulic servo actuator.
The wheeled load bridge of the utility model and pavement fatigue pilot system, wherein, the rolling wheel support left and right sides point
The guide rail for being fixed with and being arranged in vertical on a pair of sliding blocks, the mounting bracket for a pair is not set, and the sliding block can be right along its institute
The guide rail answered is slided up and down, and the sliding block and guide rail constitute the straight-line rolling guiding mechanism.
The wheeled load bridge of the utility model and pavement fatigue pilot system, wherein, pacify on the electro-hydraulic servo actuator
Equipped with load sensor and displacement transducer.
The wheeled load bridge of the utility model and pavement fatigue pilot system, wherein, the horizontal gird bottom is fixed with
Beam guideway, the beam guideway is made up of high-abrasive material, and a pair of bearing wheels are provided with the top of the mounting bracket of the loading dolly
And a pair of directive wheels, the axis of the axis of the bearing wheels and the directive wheel is mutually perpendicular to, and the bearing wheels are resisted against described
Beam guideway bottom, the directive wheel is resisted against beam guideway side wall.
The wheeled load bridge of the utility model and pavement fatigue pilot system, wherein, in addition to controller, the controller
Connect the servomotor and the electro-hydraulic servo actuator.
The wheeled load bridge of the utility model and pavement fatigue pilot system, wherein, the controller controls for POP-MF
Device.
The utility model achieves following technique effect relative to prior art：Due to the wheeled load bridge of the utility model
Loading dolly or so can be driven to move back and forth by slider-crank mechanism with the servomotor of pavement fatigue pilot system, while plus
The controllable loading dolly of the electro-hydraulic servo actuator set on dolly is carried as needed to tested sample imposed load, therefore is loaded
Dolly can accurate simulation vehicle be applied to load on bridge or road surface, tested so as to carry out full-scale bridge with pavement fatigue,
Bridge and road safety, the wheeled load bridge of the utility model and the development and development of pavement fatigue pilot system are ensured, to state
Critical infrastructures during family's modernization construction are such as：The design of Longspan Bridge, highway etc. is examined, optimized, checking
It is significant.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
In required for the accompanying drawing that uses be briefly described, it should be apparent that, drawings in the following description are only of the present utility model
Some embodiments, for those of ordinary skill in the art, without having to pay creative labor, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is the wheeled load bridge of the utility model and the three-dimensional structure diagram of pavement fatigue pilot system；
Fig. 2 is the wheeled load bridge of the utility model and the main structure diagram of pavement fatigue pilot system；
Fig. 3 is three-dimensional structure diagram of the wheeled load bridge of the utility model with loading dolly in pavement fatigue pilot system；
Fig. 4 is profile of the wheeled load bridge of the utility model with loading dolly in pavement fatigue pilot system.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
To enable above-mentioned purpose of the present utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings and tool
Body embodiment is described in further detail to the utility model.
The utility model provides a kind of wheeled load bridge and pavement fatigue pilot system, as shown in Figure 1, 2, including counter-force
Ground 11, combined bearing frame 12, tested sample 13, loading dolly 14, tested sample 13 is road surface or bridge sample, is tested
Sample 13 is fixed on counter-force ground 11, and counter-force ground 11 and combined bearing frame 12 are mutually solid by multiple prestressing force screw rods
Fixed connection, to eliminate the gap between counter-force ground 11 and combined bearing frame 12, loading dolly 14 is positioned over tested sample
On 13, horizontal gird 121 is provided with combined bearing frame 12, the top of loading dolly 14 is connected on horizontal gird 121, water
Servomotor is additionally provided with flat crossbeam 121, servomotor is connected with decelerator, and the output end of decelerator is connected with crank block
The crank axle of mechanism 15, the rod hinge connection of slider-crank mechanism 15 is on loading dolly 14, and servomotor passes through crank block machine
Structure 15 drives loading dolly 14 to be moved back and forth along horizontal gird 121 or so, and electro-hydraulic servo actuator is provided with loading dolly 14
16, in the presence of electro-hydraulic servo actuator 16, the roller 141 on loading dolly 14 applies wheeled load to tested sample 13.
As shown in figure 1, being provided with the driving oil cylinder of multiple synchronization actions on the column of composition combined bearing frame 12
122, horizontal gird 121 is fixed on the piston rod of each driving oil cylinder 122, under the synchronous driving effect of each driving oil cylinder 122,
Horizontal gird 121 can in vertical direction be moved up and down along combined bearing frame 12, so that the height in Adjustment Tests space.
As shown in Figure 3,4, loading dolly 14 includes mounting bracket 142, roller 141, rolling wheel support 145, and roller 141 is installed on
On rolling wheel support 145, and roller 141 is detachable, can be needed to install according to actual tests single shaft single-wheel, single shaft two-wheel or
The loading accessory such as twin shaft two-wheel completes experiment loading, and electro-hydraulic servo actuator 16 is arranged on mounting bracket 142, rolling wheel support 145
Upper end is fixed on the piston rod 161 of electro-hydraulic servo actuator 16, and the left and right sides of rolling wheel support 145 sets a pair of sliding blocks respectively
146, the left and right sides of mounting bracket 142 of loading dolly 14 is respectively welded a guide rail 147 being arranged in vertical, and is watched electro-hydraulic
Rolling wheel support 145 can be slided up and down by sliding block 146 along guide rail 147 in the presence of taking the piston of actuator 16, with to tested
The imposed load of sample 13, sliding block 146, the formation straight-line rolling guiding mechanism of guide rail 147, straight-line rolling guiding mechanism can prevent that loading is small
Car 14 along tested sample 13 move back and forth when frictional force be delivered on piston rod 161 so as to influenceing loading accuracy.Electro-hydraulic servo
The end of piston rod 161 of actuator 16 is provided with load sensor, the wheeled load for measuring simulation, electro-hydraulic servo actuator
Displacement transducer is provided with inside 16 to be used to measure the displacement of electro-hydraulic servo actuator 16 and the relative deformation on road surface.
As shown in Figure 1, 2, the bottom of horizontal gird 121 is welded with beam guideway 123, and beam guideway 123 is by quenched
The high-abrasive material of processing is made, due to the setting of beam guideway 123, can extend the service life of horizontal gird 121, loads dolly
14 top of mounting bracket 142 is provided with a pair of bearing wheels 143 and a pair of directive wheels 144, the axis and directive wheel of bearing wheels 143
144 axis perpendicular, in the presence of electro-hydraulic servo actuator 16, the roller 141 of loading dolly 14 is applied to tested sample 13
When loading lotus, under the reaction force acts of tested sample 13, bearing wheels 143 are resisted against the bottom of beam guideway 123, directive wheel
144 are resisted against the side wall of beam guideway 123, due to bearing wheels 143, the effect of directive wheel 144, and loading dolly 14 was being moved back and forth
Track is not deviated by journey.
The wheeled load bridge of the utility model also includes controller with pavement fatigue pilot system, and controller uses POP-MF
Controller, POP-MF controllers are mainly used in the output loads of controlled loading dolly 14 and move back and forth speed, POP-MF controls
Device connects servomotor and electro-hydraulic servo actuator 16, and POP-MF controllers can be with the start and stop of closed-loop control servomotor, and lead to
That crosses the rotating speed of accurate control servomotor to control portable loading dolly moves back and forth speed, while controller passes through control
The adjustment loading dolly 14 of electro-hydraulic servo actuator 16 is applied to the load in tested sample 13, and electro-hydraulic servo actuator 16 can be controlled
Loaded load processed is constant or is loaded in the way of sine wave, pavement loading spectrum, and the controlled loading of electro-hydraulic servo actuator 16
Load can be caused not influenceed by specimen surface injustice.
During being tested using the wheeled load bridge of the utility model and pavement fatigue pilot system, controller control
Servomotor processed drives loading dolly 14 to be moved back and forth in tested sample 13 by slider-crank mechanism 15, while being watched electro-hydraulic
The roller 141 of loading dolly 14 in the presence of actuator 16 is taken to the imposed load of tested sample 13, in the process, electro-hydraulic servo
The displacement and the relative deformation on road surface of displacement sensor electro-hydraulic servo actuator 16 inside actuator 16.
Apply specific case in the utility model to be set forth principle of the present utility model and embodiment, the above
The explanation of embodiment is only intended to help and understands method of the present utility model and its core concept；Simultaneously for the one of this area
As technical staff, according to thought of the present utility model, will change in specific embodiments and applications.To sum up
Described, this specification content should not be construed as to limitation of the present utility model.
Claims (10)
1. a kind of wheeled load bridge and pavement fatigue pilot system, it is characterised in that：Held including counter-force ground (11), combined type
Framework (12), tested sample (13), loading dolly (14) are carried, the tested sample (13) is fixed on the counter-force ground (11)
On, the counter-force ground (11) and the combined bearing frame (12) interfix, and the loading dolly (14) is positioned over institute
State in tested sample (13), horizontal gird (121), the loading dolly (14) are provided with the combined bearing frame (12)
Top is connected on the horizontal gird (121) and the loading dolly (14) can relatively described horizontal gird (121) left and right
It is mobile, servomotor is additionally provided with the horizontal gird (121), is set between the servomotor and the loading dolly (14)
Slider-crank mechanism (15) is put, the servomotor drives the loading dolly (14) left by the slider-crank mechanism (15)
Move right, electro-hydraulic servo actuator (16), electro-hydraulic servo actuator (16) connection are provided with the loading dolly (14)
The roller (141) of the loading dolly (14), the roller (141) can move up and down in vertical direction.
2. wheeled load bridge according to claim 1 and pavement fatigue pilot system, it is characterised in that：The level is horizontal
Beam (121) can in vertical direction be moved up and down along the combined bearing frame (12).
3. wheeled load bridge according to claim 2 and pavement fatigue pilot system, it is characterised in that：The combined type
The driving oil cylinder (122) of several synchronization actions is installed, the horizontal gird (121) is fixed on each institute on bearing frame (12)
On the piston rod for stating driving oil cylinder (122).
4. wheeled load bridge according to claim 1 and pavement fatigue pilot system, it is characterised in that：The loading is small
Car is provided with straight-line rolling guiding mechanism on (14).
5. wheeled load bridge according to claim 4 and pavement fatigue pilot system, it is characterised in that：The loading is small
Car (14) also includes mounting bracket (142) and rolling wheel support (145), and the roller (141) is removably mounted to the rolling wheel support
(145) on, the electro-hydraulic servo actuator (16) is arranged on the mounting bracket (142), and rolling wheel support (145) upper end is solid
Due on the piston rod (161) of the electro-hydraulic servo actuator (16).
6. wheeled load bridge according to claim 5 and pavement fatigue pilot system, it is characterised in that：The roller branch
Frame (145) left and right sides is set respectively to be fixed with one group on a pair of sliding blocks (146), the mounting bracket (142) and vertically sets
The guide rail (147) put, the sliding block (146) can slide up and down along the guide rail (147) corresponding to it, the sliding block (146)
And guide rail (147) constitutes the straight-line rolling guiding mechanism.
7. wheeled load bridge according to claim 1 and pavement fatigue pilot system, it is characterised in that：It is described electro-hydraulic to watch
Take and load sensor and displacement transducer are installed in actuator (16).
8. wheeled load bridge according to claim 5 and pavement fatigue pilot system, it is characterised in that：The level is horizontal
Beam (121) bottom is fixed with beam guideway (123), and the beam guideway (123) is made up of high-abrasive material, the loading dolly
(14) a pair of bearing wheels (143) and a pair of directive wheels (144) are provided with the top of mounting bracket (142), the bearing wheels (143)
The axis perpendicular of axis and the directive wheel (144), the bearing wheels (143) are resisted against the beam guideway (123) bottom,
The directive wheel (144) is resisted against the beam guideway (123) side wall.
9. wheeled load bridge according to claim 1 and pavement fatigue pilot system, it is characterised in that：Also include control
Device, the controller connects the servomotor and the electro-hydraulic servo actuator.
10. wheeled load bridge according to claim 9 and pavement fatigue pilot system, it is characterised in that：The control
Device is POP-MF controllers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621305427.3U CN206378381U (en) | 2016-12-01 | 2016-12-01 | Wheeled load bridge and pavement fatigue pilot system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621305427.3U CN206378381U (en) | 2016-12-01 | 2016-12-01 | Wheeled load bridge and pavement fatigue pilot system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206378381U true CN206378381U (en) | 2017-08-04 |
Family
ID=59406758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621305427.3U Expired - Fee Related CN206378381U (en) | 2016-12-01 | 2016-12-01 | Wheeled load bridge and pavement fatigue pilot system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206378381U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525619A (en) * | 2016-12-01 | 2017-03-22 | 辽宁省交通规划设计院有限责任公司 | Fatigue test system for bridge and pavement with roller load |
| CN110044745A (en) * | 2019-04-12 | 2019-07-23 | 河海大学 | The fatigue tester and its control circuit of complicated coupling active force can be applied |
| CN110658087A (en) * | 2019-10-18 | 2020-01-07 | 温州大学 | Piezoelectric road test device under simulation traffic load effect |
| CN110907299A (en) * | 2019-11-21 | 2020-03-24 | 中国矿业大学 | Main cable multipoint variable load bending fatigue monitoring device and monitoring method thereof |
| CN117420035A (en) * | 2023-12-19 | 2024-01-19 | 江苏广亚建设集团有限公司 | Bridge bearing capacity testing device |
-
2016
- 2016-12-01 CN CN201621305427.3U patent/CN206378381U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525619A (en) * | 2016-12-01 | 2017-03-22 | 辽宁省交通规划设计院有限责任公司 | Fatigue test system for bridge and pavement with roller load |
| CN106525619B (en) * | 2016-12-01 | 2023-07-25 | 辽宁省交通规划设计院有限责任公司 | Wheel type load bridge and pavement fatigue test system |
| CN110044745A (en) * | 2019-04-12 | 2019-07-23 | 河海大学 | The fatigue tester and its control circuit of complicated coupling active force can be applied |
| CN110044745B (en) * | 2019-04-12 | 2021-06-11 | 河海大学 | Fatigue testing machine capable of applying complex coupling acting force and control circuit thereof |
| CN110658087A (en) * | 2019-10-18 | 2020-01-07 | 温州大学 | Piezoelectric road test device under simulation traffic load effect |
| CN110907299A (en) * | 2019-11-21 | 2020-03-24 | 中国矿业大学 | Main cable multipoint variable load bending fatigue monitoring device and monitoring method thereof |
| CN110907299B (en) * | 2019-11-21 | 2021-11-02 | 中国矿业大学 | Main cable multipoint variable load bending fatigue monitoring device and monitoring method thereof |
| CN117420035A (en) * | 2023-12-19 | 2024-01-19 | 江苏广亚建设集团有限公司 | Bridge bearing capacity testing device |
| CN117420035B (en) * | 2023-12-19 | 2024-04-12 | 江苏广亚建设集团有限公司 | Bridge bearing capacity testing device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170804 Termination date: 20201201 |