CN205367505U - Hoisting machinery main girder structure harms recognition device - Google Patents
Hoisting machinery main girder structure harms recognition device Download PDFInfo
- Publication number
- CN205367505U CN205367505U CN201620021051.7U CN201620021051U CN205367505U CN 205367505 U CN205367505 U CN 205367505U CN 201620021051 U CN201620021051 U CN 201620021051U CN 205367505 U CN205367505 U CN 205367505U
- Authority
- CN
- China
- Prior art keywords
- girder
- fixed mount
- hoisting machinery
- recognition device
- destructive tests
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to a structural damage discerns the field, and concretely relates to hoisting machinery main girder structure harms recognition device solves present hoisting machinery girder structural damage identification system complicacy, higher, the lower problem of discernment efficiency of maintenance cost. The utility model discloses install displacement sensor on the recognition device mount, recognition device mount one side hinges in the girder tip, and the opposite side can be followed the girder orientation and freely slided. Whether structural damage recognition device is under with the predetermined boundary condition of intact structure based on the girder each point downwarp value, through displacement sensor and the data acquisition system girder each point downwarp value of regularly measurationing, obtains each measurement station amount of deflection increase rate of girder of later stage and amount of deflection in earlier stage through damage identification system, draws girder each point amount of deflection increase rate curve, flex point judgement structure whether appears through amount of deflection increase rate curve and take place to harm and the structural damage position, with clearly defined objective, the reliable and simple of damage recognition device, reliable, the extensive popularization and application of being convenient for of economy.
Description
Technical field
This utility model relates to Damage Assessment Method field, it is specifically related to a kind of hoisting machinery main beam structure non-destructive tests device, suitable in gantry crane and bridge cranes such as Bridge Erector, lifting beam machine, beam shifting machines, can by simple technological means, obtain reliable Testing index and non-destructive tests curve, can identify whether structure damage and damage position occur in time, effectively contain the generation of security incident.
Background technology
At present, repeatedly there is security incident in the large scale hoisting machinery such as Bridge Erector, lifting beam machine, for preventing the generation of equipment security incident, State General Administration for Quality Supervision's compulsive requirement Bridge Erector of national in-service operation, lifting beam machine install safety monitoring system, but due to existing hoisting machinery Structural Damage Identification system complex, with high costs, site operation personnel's technology is required height, the problem such as incompatible with site operation environment, safety monitoring system monitoring project can not relate to structural damage so far and know, and is unfavorable for job safety.So proposing a kind of simple, safe and reliable Structural Damage Identification there is very useful realistic meaning.
Utility model content
This utility model purpose is to provide a kind of hoisting machinery main beam structure non-destructive tests device, utilize this utility model, current hoisting machinery main beam structure can be solved and damage the problem that cannot find in time, easily cause serious accident, a kind of new design concept and technical guarantee can be provided, it is adaptable to the safety monitoring of gantry crane or bridge crane for hoisting machinery structural safety identification technology.
For solving the problems referred to above, technical solution adopted in the utility model is:
A kind of hoisting machinery main beam structure non-destructive tests device, its key technology is in that: it includes the identification device fixed mount being installed on girder, it is generally arranged along girder length direction, described identification device fixed mount side is hinged with end of main beam, opposite side can along the free sliding in girder direction, displacement transducer base is fixed on identification device fixed mount crossbeam, displacement sensor probe contacts with girder upper flange, data collecting system is connected with each displacement transducer by holding wire, after each displacement transducer data of data acquisition system, each point displacement data is reached non-destructive tests system, non-destructive tests system can automatically be drawn each measuring point of girder by each measuring point deflection data of analysis and be scratched gaining rate curve.Data collecting system and non-destructive tests system are mounted in drivers' cab, according to the girder that non-destructive tests system is drawn, hoisting machinery operator can scratch whether gaining rate curve exists jumping phenomenon, identify whether girder exists damage phenomenon, drivers' cab is fixed on hoisting machinery supporting leg, and part bridge crane drivers' cab is fixed on girder.
As preferably, institute's displacement sensors can be determined laying spacing according to main beam structure feature and lay quantity, with hoisting machinery parking stall for fixing deflection data acquisition zone, utilize each measuring point amount of deflection of the girder under data acquisition system serviceable condition, non-destructive tests system sets up benchmark line of deflection with each measuring point amount of deflection of girder under this fixed operation position serviceable condition, regularly hoisting machinery is left to data collection zone later, the each measuring point deflection data collection of girder is carried out by data collecting system, non-destructive tests system is with benchmark line of deflection for benchmark, utilize the line of deflection numerical value that the later stage gathers to try to achieve each measuring point of girder and scratch gaining rate, gaining rate curve catastrophe is scratched by observing, whether recognizable girder exists single-point or multiple spot damage.
As preferably, the gaining rate Computing Principle of scratching of described knowledge non-destructive tests system is: scratch gaining rate and girder each measuring point amount of deflection Magnification Ki:
Wherein, fiThe each measuring point amount of deflection of serviceable condition structure girder；fisThe each measuring point amount of deflection of girder of later stage periodic measurement.
As preferably, described identification device fixed mount includes fixed mount crossbeam, and fixed mount crossbeam is rigidly connected with fixed mount column and fixed mount column, fixed mount column bottom is annular ear mount, can being articulated with on girder, opposite side fixed mount column bottom is slide plate chair, can along girder straight skidding.
As preferably, the each measuring point downwarp value of its girder can gather automatically, scratch gaining rate curve automatically to be drawn by non-destructive tests system, hoisting machinery girder bending-down is measured the cycle and can be determined according to the life cycle of hoisting machinery, the equipment newly come into operation, can measure once for one month, along with the increase using cycle-index, two weeks can be gradually reduced to measure once, even measure once before formally heavy duty every day.
Adopt and have the beneficial effects that produced by technique scheme:
Research and develop a kind of simple with principle, simple and easy to do, cheap, reliability is high, be easy to the hoisting machinery girder non-destructive tests device of Inspection and maintenance, utilize the change of Main Girder Deflection under set boundary condition, draw amount of deflection Magnification curve, whether occur whether sudden change intuitive judgment structure damage and damage position can occurs by amount of deflection Magnification curve, it is applicable not only to single-point damage, equally applicable for multiple spot damage, solve the problem that existing structure damage identification technique disconnects with on-the-spot application.Suitable in gantry crane and various bridge cranes such as Bridge Erector, lifting beam machine, beam shifting machines, simple and easy to do, economical reliably.
This utility model, originally without requiring prior anticipation damage position, overcomes the defect that prior art anticipation is poor.
This utility model utilizes hoisting machinery to fix parking spot, carry out the deflection metrology under girder deadweight state, need not separately set traveling load to coordinate along girder traveling, operation is simple, every time before the formal operation of hoisting machinery, this device can be utilized automatically to carry out girder line of deflection measurement, girder damage check is carried out by non-destructive tests system, can starting operation after determining structural safety, whole process only driver one people can complete through simple training, convenient and safe.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model detailed description of the invention or technical scheme of the prior art, the accompanying drawing used required in detailed description of the invention or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is main TV structure schematic diagram of the present utility model.
Fig. 2 is this utility model main TV structure schematic diagram of identification device fixed mount.
Fig. 3 is this utility model Damage Assessment Method step diagram.
Fig. 4 is that the main beam structure utilizing this utility model to obtain occurs the gaining rate curve of scratching during the single-point damage of 3 places to illustrate respectively.
Fig. 5 is that the main beam structure utilizing this utility model to obtain occurs the gaining rate curve of the scratching during damage of 3 places to illustrate simultaneously.
Wherein: 1 identifies device fixed mount, 1-1 fixed mount crossbeam, 1-2 the first fixed mount column, 1-3 the second fixed mount column, 1-4 annular ear mount, 1-5 slide plate chair, 2 displacement transducers, 3 holding wires, 4 girders, 5 data collecting systems, 6 non-destructive tests systems, 7 drivers' cabs, 8 supporting legs.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing 1-5 and specific embodiment, utility model is carried out clear, complete description.
nullThe structure of the present embodiment is as shown in Figure 1，A kind of non-destructive tests device for hoisting machinery main beam structure，It includes the identification device fixed mount 1 being installed on girder 4，Identify that device fixed mount 1 side and girder 4 end are hinged，Opposite side can along the free sliding in girder 4 direction，Displacement transducer 2 base is fixed on identification device fixed mount 1 crossbeam，Displacement transducer 2 probe contacts with girder 4 upper flange，Data collecting system 5 is connected with each displacement transducer 2 by holding wire 3，After data collecting system 5 gathers each displacement transducer 2 data，Each point displacement data is reached non-destructive tests system 6，Data collecting system 5 and non-destructive tests system 6 are mounted in drivers' cab 7，Whether hoisting machinery operator can exist jumping phenomenon according to the girder each point amount of deflection Magnification curve that non-destructive tests system is drawn，Identify whether girder 4 exists damage phenomenon，Drivers' cab 7 is fixed on hoisting machinery supporting leg 8，Part bridge crane drivers' cab 7 is fixed on girder 4.
As shown in Figure 2, described identification device fixed mount 1 is generally arranged along girder 4 length direction, fixed mount crossbeam 1-1 must have reasonable rigidity, its two ends are rigidly connected respectively at the first fixed mount column 1-2 and the second fixed mount column 1-3, be annular ear mount 1-4, be articulated with on girder 4 bottom the first fixed mount column 1-2, it is slide plate chair 1-5 bottom second fixed mount column 1-3, can along girder straight skidding, it is ensured that during hoisting machinery operation, identify that device fixed mount 1 load that do not hoisted affects.
nullAs shown in Figure 3，Size according to hoisting machinery girder 4 length damage identification device 1，And non-destructive tests device 1 is installed on girder 4，The first fixed mount column 1-2 and main beam pivot need to be ensured during installation，Second fixed mount column 1-3 can along girder direction slidably，In conjunction with girder 4 construction features，Determine the laying spacing of displacement transducer 2 and lay quantity，Displacement transducer 2 is fixed on non-destructive tests device crossbeam 1-1，And make displacement transducer 2 probe contact with girder 4 upper flange，And by holding wire 3, each displacement transducer 2 is connected with data collecting system 5，Non-destructive tests system 6 is connected in data collecting system 5，After a whole set of non-destructive tests device debugging completes，Determine hoisting machinery girder 4 line of deflection test section，And it can be used as fixing test position，To avoid the hoisting machinery holding state change impact on non-destructive tests fixed mount 1 state，Utilize data collecting system that girder 4 line of deflection docked under the serviceable condition of fixing test position is tested，Using the collection data under this state as girder 4 non-destructive tests benchmark line of deflection，Later stage regularly carries out the test of girder 4 line of deflection at fixing test position，Utilize non-destructive tests system 6 to carry out girder 4 and scratch gaining rate mutation analysis and gaining rate curve is scratched in drafting，Scratch gaining rate curve and whether there is sudden change by observing girder 4 and identify whether girder 4 damage phenomenon occurs.
As shown in Figure 4, for further illustrating the advance of this utility model, set girder unit 9, 19 and 31 there is single-point damage in various degree respectively, Fig. 4 is that gaining rate curve scratched by the girder corresponding when individually damaging of three unit of girder, what wherein three kinds of different icons scratched that gaining rate curve represents that three unit single-points damages cause respectively scratches gaining rate situation of change, transverse axis is girder 4 unit number, number axis is that each measuring point of girder 4 scratches gaining rate, as shown in Figure 4, three unit are scratched gaining rate curve and are occurred in that sudden change respectively, and the corresponding girder of three unit single-points damage to scratch gaining rate curve mutated site all corresponding with its transverse axis damage cell position, illustrate to scratch gaining rate curve mutated site by observation, can effectively differentiate single-point damage position.
As shown in Figure 5, for further illustrating the advance of this utility model, if girder unit 8,19 and 36 damages simultaneously, and degree of injury is different, as shown in Figure 5, girder is scratched gaining rate curve and is undergone mutation in unit 8,19 and 36 position, and each mutated site corresponding scratch gaining rate difference, corresponding gaining rate value of scratching is more big, illustrates that the damage of this cell position is more serious, and Fig. 5 illustrates that this non-destructive tests device damages for the multiple spot of girder and also can effectively identify.
As another embodiment, available total powerstation, laser range finder and theodolite etc. carry out girder line of deflection test, and carry out non-destructive tests by above-mentioned damage principle.
Last it is noted that above example is only in order to illustrate the technical solution of the utility model, it is not intended to limit；Although this utility model being described in detail with reference to previous embodiment, it will be understood by those within the art that: the technical scheme described in previous embodiment still can be modified by it, or wherein portion of techniques feature is carried out equivalent replacement；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of this utility model embodiment technical scheme.
Claims (3)
1. a hoisting machinery main beam structure non-destructive tests device, it is characterized in that: it includes identification device fixed mount (1) being installed on girder (4), described identification device fixed mount (1) side is hinged with girder (4) end, opposite side can along girder (4) free sliding, described identification device fixed mount (1) is provided with multiple displacement transducer (2), the probe of institute's displacement sensors (2) contacts with described girder (4) upper flange, each displacement transducer (2) is connected with data collecting system (5) by holding wire (3), data collecting system (5) is connected with non-destructive tests system (6), described data collecting system (5) and non-destructive tests system (6) are mounted in drivers' cab (7), described drivers' cab (7) is fixed on hoisting machinery supporting leg (8) or girder (4).
2. a kind of hoisting machinery main beam structure non-destructive tests device according to claim 1, it is characterized in that: described identification device fixed mount (1) includes fixed mount crossbeam (1-1) and be fixedly installed on the first fixed mount column (1-2) and the second fixed mount pillar (1-3) at described fixed mount crossbeam (1-1) two ends respectively, described first fixed mount column (1-2) bottom is annular ear mount (1-4), it is articulated with on girder (4) by described annular ear mount (1-4), described second fixed mount column (1-3) bottom is slide plate chair (1-5), can along girder (4) straight skidding.
3. a kind of hoisting machinery main beam structure non-destructive tests device according to claim 1, it is characterised in that: institute's displacement sensors (2) determines laying spacing according to girder (4) construction features and lays quantity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620021051.7U CN205367505U (en) | 2016-01-11 | 2016-01-11 | Hoisting machinery main girder structure harms recognition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620021051.7U CN205367505U (en) | 2016-01-11 | 2016-01-11 | Hoisting machinery main girder structure harms recognition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205367505U true CN205367505U (en) | 2016-07-06 |
Family
ID=56276449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620021051.7U Expired - Fee Related CN205367505U (en) | 2016-01-11 | 2016-01-11 | Hoisting machinery main girder structure harms recognition device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205367505U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108846197A (en) * | 2018-06-11 | 2018-11-20 | 石家庄铁道大学 | A kind of crane's major girder non-destructive tests and degree of injury quantitative analysis method |
| CN111397525A (en) * | 2020-05-18 | 2020-07-10 | 常州机电职业技术学院 | Method, device and system for detecting flexible line of small cantilever beam |
-
2016
- 2016-01-11 CN CN201620021051.7U patent/CN205367505U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108846197A (en) * | 2018-06-11 | 2018-11-20 | 石家庄铁道大学 | A kind of crane's major girder non-destructive tests and degree of injury quantitative analysis method |
| CN108846197B (en) * | 2018-06-11 | 2022-05-20 | 石家庄铁道大学 | Bridge girder erection machine girder damage identification and damage degree quantitative analysis method |
| CN111397525A (en) * | 2020-05-18 | 2020-07-10 | 常州机电职业技术学院 | Method, device and system for detecting flexible line of small cantilever beam |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106284070A (en) | Light-duty carbon fiber cable-climbing robot with detecting system and the method for drag-line detection thereof | |
| CN111510205B (en) | Optical cable fault positioning method, device and equipment based on deep learning | |
| CN108846197A (en) | A kind of crane's major girder non-destructive tests and degree of injury quantitative analysis method | |
| CN201289369Y (en) | Automatic detection device for railway tanker tank | |
| CN201961977U (en) | Weight unbalance-loading detection system for container of gantry crane | |
| CN205367505U (en) | Hoisting machinery main girder structure harms recognition device | |
| CN106400682B (en) | Force-measuring type plate rubber support based on optical fiber deformation sensor | |
| CN210533640U (en) | Single-beam static load test intelligent control system | |
| CN204287109U (en) | A kind of testing device for wire ropes based on electromagnetic detection | |
| CN103759868A (en) | Bridge cross connection real-time assessment method based on stress proportion | |
| CN105222879A (en) | The long-range self-diagnosable system of complicated dynamic weighing sensing network and self-diagnosing method thereof | |
| CN202994728U (en) | Automatic electromagnetic nondestructive testing device for in-use steel rail | |
| CN102998416A (en) | Simple oil-gas pipeline traction test method and device | |
| CN209624252U (en) | Hanging Basket artificial intelligence loading system | |
| CN204203165U (en) | Multi-rope friction type lands steel wire rope of hoist line flaw detection device | |
| CN102313680A (en) | Detection for corrosion of stayed cable and evaluation method thereof | |
| CN103323282A (en) | Tower crane safety assessment method and assessment equipment thereof | |
| CN203908431U (en) | Automobile front part assembly part detecting tool | |
| CN206095494U (en) | Control of tension power testing system under prestressed concrete bridge roof beam anchor | |
| CN205919806U (en) | Measuring mechanism and inequality detection device of axial lead distance are arrived to cable contact surface | |
| CN205772642U (en) | Five-point type elevator traction rope tension detecting apparatus | |
| CN211621719U (en) | Pile foundation static load detection system based on non-contact dynamic displacement test | |
| WO2024067232A1 (en) | Optical fiber sensing-based laminated bearing and monitoring system, mounting method, and monitoring method | |
| CN104390630A (en) | Method for measuring and estimating overall inclination of external floating-roof storage tank | |
| CN113218552A (en) | Auxiliary equipment and method for evaluating installation thrust of aero-engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20200111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |