CN206019890U - Tensioning instrument is used in screw rod detection - Google Patents
Tensioning instrument is used in screw rod detection Download PDFInfo
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- CN206019890U CN206019890U CN201620438541.7U CN201620438541U CN206019890U CN 206019890 U CN206019890 U CN 206019890U CN 201620438541 U CN201620438541 U CN 201620438541U CN 206019890 U CN206019890 U CN 206019890U
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- screw rod
- data
- tensioning
- tensioning instrument
- analysis module
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Abstract
The utility model discloses tensioning instrument is used in a kind of screw rod detection.The tensioning instrument includes：Mechanical module, for carrying out tensioning and the tightness of nut being adjusted to screw rod；Data acquisition module, for gathering pressure of the mechanical module when tensioning is carried out to screw rod, ultrasonic flight-time and temperature data；Data analysis module, for receiving the data gathered by the data acquisition module, and generates spiro rod length tensile relationship curve.Using tensioning instrument of the present utility model, the current pretightning force of screw rod can be accurately and easily tested out, be subsequently whether to need to mend to provide a foundation, meanwhile, after the completion of mending to screw rod pulling force, can be estimated to mending Zhang Xiaoguo according to test result.
Description
Technical field
The utility model is related to a kind of screw rod detection tensioning instrument, more particularly to a kind of heavy in section spiral shell for being applied to suspension bridge
Tensioning instrument is used in bar detection.
Background technology
Before the utility model, there is no efficient method and apparatus test out is used for the spiral shell for fastening cord clip on suspension bridge
The pulling force of bar.Under normal circumstances, it is to ensure screw rod pulling force in rational state, it is by screw stretching that the solution of unit supported by pipe
To state of tension is specified, nut is tightened, the effective cuff of screw rod is made on cord clip by nut.
The weak point of the method is that, for making bridge bearing component main push-towing rope under rational stress, it is periodically right to need
All screw rod carries out tensioning, wastes time and energy.And cannot determine whether screw rod pulling force reaches requirement after tensioning, it is impossible to ensure tensioning
Quality.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of screw rod detection tensioning instrument, answers especially with regard to a kind of
Heavy in section screw rod detection tensioning instrument for suspension bridge.Using tensioning instrument of the present utility model, accurately and easily can test out
Whether the current pretightning force of screw rod, be subsequently to need to mend to provide a foundation, meanwhile, after the completion of mending to screw rod, can be according to test
As a result it is estimated to mending Zhang Xiaoguo.
For achieving the above object, the utility model provides a kind of screw rod detection and uses tensioning instrument, and which includes：
Mechanical module, for carrying out tensioning and the tightness of nut being adjusted to screw rod；
Data acquisition module, for gathering pressure of the mechanical module when tensioning is carried out to screw rod, ultrasonic flight-time
And temperature data；
Data analysis module, for receiving the data gathered by the data acquisition module, and generates spiro rod length-pulling force
Relation curve.
Preferably, the mechanical module includes cushion block, nut regulating block, jack, tensioning nut and oil pump；The oil pump
More preferably light hand formula high-pressure oil pump, is applied to work high above the ground to facilitate.
Preferably, the data acquisition module includes pressure sensor, sonac and temperature sensor；More preferably
Ground, the pressure sensor are strain gauge pressure sensor.Operationally, one end of the pressure sensor is connected to described
On oil pump, the other end of the pressure sensor is connected on the data analysis module；One end of the sonac connects
The termination of screw rod is connected on, the other end of the sonac is connected on the data analysis module；The temperature sensor
One end be connected to the termination of screw rod, the other end of the temperature sensor is connected on the data analysis module.
Wherein, the sonac is used for gathering ultrasonic flight-time；The temperature sensor is in the sonac
Use after being completed, be modified in order to collecting temperature data and to other data for gathering.
The utility model can go out the change of elongate screw amount using the method for test ultrasonic flight-time with inverse.Meanwhile, by
In heavy in section, screw rod applied elongation amount is less, and ultrasonic propagation velocity is fast, and measuring accuracy is high, elongate screw amount is changed quick
Sense, can accurately reflect the current pulling force suffered by screw rod.
Preferably, the data analysis module is a portable industrial pc, comprising screen, computing chip and for connecing
Receive the interface of the data transmitted by the pressure sensor, sonac and temperature sensor.Operationally, by screw design
The parameters such as length, nut stem material are input into, and after measuring the data such as pressure, ultrasonic flight-time and temperature, program can automatically derived spiral shell
Pole length-tensile relationship curve, can instruct screw stretching construction, screw pre-tightening power benefit, screw pre-tightening power using the curve
Ultrasonic tesint.
Preferably, the data analysis module is after the data such as real-time ultrasonic flight-time, pressure, temperature are got, root
Go out spiro rod length according to ultrasonic flight-time inverse, and temperature adjustmemt is carried out to spiro rod length, further according to spiro rod length-tensile relationship,
The current pulling force that screw rod is gone out using least square method automatic interpretation.
Preferably, the data analysis module is also connected with a computer, for deriving analyzing test data, test is arrived
The data such as ultrasonic flight-time, pressure, temperature, screw pre-tightening power are derived, are preserved to computer.
The utility model also provides above-mentioned screw rod detection tensioning instrument and fastens the application that implements in engineering in screw rod.
The beneficial effects of the utility model are as follows：
1st, method of the utility model using test ultrasonic flight-time, inverse go out the change of elongate screw amount.Cut due to big
Face screw rod applied elongation amount is less, and ultrasonic propagation velocity is fast, and measuring accuracy is high, to elongate screw amount sensitive, thus
Test the current pulling force accuracy of the screw rod for obtaining high.
2nd, in test process under real time record during sound, the signal such as pressure, temperature, sample frequency is high, can for the utility model
Reach more than 5Hz.
3rd, the utilization of light hand formula high-pressure oil pump so that instrument of the present utility model is easy to high-altitude small space on main push-towing rope
Operation.
Data during sound, according to the temperature data for collecting, can be carried out by the 4th, data collection and analysis module of the present utility model
Revise, further such that the current pulling force of the screw rod that measures is more accurate.
5th, the utility model after the pretightning force for testing out screw rod can be mended to the screw rod for being unsatisfactory for requiring and be opened to regulation
Pulling force, cannot determine the drawbacks of whether pulling force is up to standard after overcoming traditional work tensioning.
Description of the drawings
Fig. 1 is the overall schematic of screw rod detection tensioning instrument of the present utility model.
Fig. 2 is the structural representation of the mechanical module of screw rod detection tensioning instrument of the present utility model.
Fig. 3 is that screw rod detection tensioning instrument of the present utility model mends the flow chart that opens when using to screw rod tensile test.
Fig. 4 is the broken line graph automatically generated according to the measured data of table 1 in embodiment 2.
Fig. 5 is the broken line graph generated by least square fitting according to the measured data of table 1 in embodiment 2.
【Description of reference numerals】
Mechanical module 1
Data acquisition module 2
Data analysis module 3
Cushion block 4
Nut regulating block 5
Jack 6
Tensioning nut 7
Oil pump 8
Specific embodiment
For making the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with specific embodiment, and
Referring to the drawings, the utility model is described in further detail.
The utility model provides a kind of screw rod detection and uses tensioning instrument, and which includes：
Mechanical module, for carrying out tensioning and the tightness of nut being adjusted to screw rod；
Data acquisition module, for gathering pressure of the mechanical module when tensioning is carried out to screw rod, ultrasonic flight-time
And temperature data；
Data analysis module, for receiving the data gathered by the data acquisition module, and generates spiro rod length-pulling force
Relation curve.
Preferably, the mechanical module includes cushion block, nut regulating block, jack, tensioning nut and oil pump；The oil pump
More preferably light hand formula high-pressure oil pump, is applied to work high above the ground to facilitate.
Preferably, the data acquisition module includes pressure sensor, sonac and temperature sensor；In work
When, one end of the pressure sensor is connected on the oil pump, and the other end of the pressure sensor is connected to the data
In analysis module；One end of the sonac is connected to the termination of screw rod, and the other end of the sonac is connected to
On the data analysis module；One end of the temperature sensor is connected to the termination of screw rod, the temperature sensor another
End is connected on the data analysis module.
Wherein, the sonac is used for gathering ultrasonic flight-time；The temperature sensor is in the sonac
Use after being completed, be modified in order to collecting temperature data and to other data for gathering.
The utility model can go out the change of elongate screw amount using the method for test ultrasonic flight-time with inverse.Meanwhile, by
In heavy in section, screw rod applied elongation amount is less, and ultrasonic propagation velocity is fast, and measuring accuracy is high, elongate screw amount is changed quick
Sense, can accurately react the current pulling force suffered by screw rod.
Preferably, the data analysis module is a portable industrial pc, comprising screen, computing chip and for connecing
Receive the interface of the data transmitted by the pressure sensor, sonac and temperature sensor.Operationally, by screw design
The parameters such as length, nut stem material are input into, and after measuring the data such as pressure, ultrasonic flight-time and temperature, program can automatically derived spiral shell
Pole length-tensile relationship curve, can instruct screw stretching construction, screw pre-tightening power benefit, screw pre-tightening power using the curve
Ultrasonic tesint.
Preferably, the data analysis module is when real-time sound is got, after the data such as pressure, temperature, using minimum
Square law automatic interpretation goes out the current pulling force of screw rod.
Preferably, the data analysis module is also connected with a computer, for deriving analyzing test data, test is arrived
During sound, during the data such as pressure, temperature, screw pre-tightening power derive, preserve to computer.
The following is specific embodiment.
Embodiment 1
The present embodiment provides a kind of screw rod detection and uses tensioning instrument, and as depicted in figs. 1 and 2, which includes mechanical module 1, data
Acquisition module 2 and data analysis module 3.The mechanical module includes cushion block 4, nut regulating block 5, jack 6, tensioning nut 7
With oil pump 8；Oil pump 8 in the present embodiment is light hand formula high-pressure oil pump, is conveniently applied to work high above the ground.
The data acquisition module 2 includes pressure sensor, sonac and temperature sensor；Operationally, described
One end of pressure sensor is connected on the oil pump 8, and the other end of the pressure sensor is connected to the data analysis mould
On block 3；One end of the sonac is connected to the termination of screw rod, and the other end of the sonac is connected to the number
According in analysis module 3；One end of the temperature sensor is connected to the termination of screw rod, the other end connection of the temperature sensor
On the data analysis module 3.Wherein, the sonac is used for gathering ultrasonic flight-time；The temperature sensor exists
The sonac is used after being completed, and is modified in order to collecting temperature data and to other data for gathering.
Embodiment 2
Screw rod detection tensioning instrument described in Application Example 1 is to being used for the screw rod for fastening cord clip on a certain large-scale suspension bridge
Carry out tensile test and regulation.
By cushion block, nut regulating block and jack cuff on cord clip screw rod, tensioning nut is screwed on screw rod, and is made
Which is held out against on jack.Sonac is installed on screw rod one end；Temperature sensor is placed on the side of screw rod to be tested；Pressure
Force snesor is arranged between jack and tensioning nut.Finally jack is linked together with oil pump with oil pipe.
Operationally, data collection and analysis instrument is first turned on, just ultrasound, temperature and pressure sensor receiving data is being confirmed
Often.Hand oil pump is opened, tensioning is carried out to jack, the 15% or so of target pulling force is stretched to for the first time, is then unloaded, to eliminate
Inelastic deformation between mechanical component.Then start formal stretching measurement, be equably progressively stretched to the 110% of target pulling force.
The current pretightning force of the screw rod can be read from data collection and analysis instrument.If current pretightning force is less than target pulling force, to which
Carry out mending and open；If meet requiring, lifting jack unloading, concrete operations flow process are asked for an interview Fig. 3.Thus, then completing this screw rod
Test mend Zhang Gong make.
It is as shown in table 1 below that one group measured data is now chosen：
The typical measured data of certain group of table 1
The broken line graph that the data of table 1 are automatically generated is as shown in Figure 4.
Checked by least square fitting broken line, as shown in Figure 5.
Its result of calculation is 43.19 tons, is unsatisfactory for setting pulling force, needs to tighten nut, re-start test after unloading.
Particular embodiments described above, has carried out entering one to the purpose of this utility model, technical scheme and beneficial effect
Step is described in detail, it should be understood that be the foregoing is only specific embodiment of the utility model, is not limited to this reality
With new, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvements that is done etc. all should include
Within protection domain of the present utility model.
Claims (9)
1. tensioning instrument is used in a kind of screw rod detection, it is characterised in that included：
Mechanical module, for carrying out tensioning and the tightness of nut being adjusted to screw rod；
Data acquisition module, for gathering pressure of the mechanical module when tensioning is carried out to screw rod, ultrasonic flight-time and temperature
Degrees of data；
Data analysis module, for receiving the data gathered by the data acquisition module, and generates spiro rod length-tensile relationship
Curve.
2. tensioning instrument is used in screw rod detection according to claim 1, it is characterised in that the mechanical module includes cushion block, spiral shell
Female regulating block, jack, tensioning nut and oil pump.
3. tensioning instrument is used in screw rod detection according to claim 2, it is characterised in that the oil pump is light hand formula high pressure
Oil pump.
4. tensioning instrument is used in screw rod detection according to claim 2, it is characterised in that the data acquisition module includes pressure
Sensor, sonac and temperature sensor.
5. tensioning instrument is used in screw rod detection according to claim 4, it is characterised in that the pressure sensor is strain chip
Pressure sensor.
6. tensioning instrument is used in screw rod detection according to claim 4, it is characterised in that operationally, the pressure sensor
One end be connected on the oil pump, the other end of the pressure sensor is connected on the data analysis module；Described super
One end of sonic transducer is connected to the termination of screw rod, and the other end of the sonac is connected to the data analysis module
On；One end of the temperature sensor is connected to the termination of screw rod, and the other end of the temperature sensor is connected to the data
In analysis module.
7. tensioning instrument use in screw rod according to claim 4 detection, it is characterised in that the data analysis module for one just
Formula industrial computer is taken, comprising screen, computing chip and data-interface, the data-interface is used for receiving the pressure sensor, surpasses
The data gathered by sonic transducer and temperature sensor.
8. tensioning instrument is used in screw rod detection according to claim 7, it is characterised in that the data analysis module is using minimum
Square law automatic interpretation goes out the current pulling force of screw rod.
9. tensioning instrument is used in screw rod detection according to claim 7, it is characterised in that the data analysis module is also electric with one
Brain is connected, for deriving analyzing test data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620438541.7U CN206019890U (en) | 2016-05-13 | 2016-05-13 | Tensioning instrument is used in screw rod detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620438541.7U CN206019890U (en) | 2016-05-13 | 2016-05-13 | Tensioning instrument is used in screw rod detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206019890U true CN206019890U (en) | 2017-03-15 |
Family
ID=58241298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620438541.7U Expired - Fee Related CN206019890U (en) | 2016-05-13 | 2016-05-13 | Tensioning instrument is used in screw rod detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206019890U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865688A (en) * | 2016-05-13 | 2016-08-17 | 中交公路规划设计院有限公司 | Tensioning instrument for screw detection and application thereof |
| CN110359372A (en) * | 2019-07-04 | 2019-10-22 | 中铁大桥科学研究院有限公司 | A kind of cord clip of suspension bridge screw rod axle power construction method |
-
2016
- 2016-05-13 CN CN201620438541.7U patent/CN206019890U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865688A (en) * | 2016-05-13 | 2016-08-17 | 中交公路规划设计院有限公司 | Tensioning instrument for screw detection and application thereof |
| CN110359372A (en) * | 2019-07-04 | 2019-10-22 | 中铁大桥科学研究院有限公司 | A kind of cord clip of suspension bridge screw rod axle power construction method |
| CN110359372B (en) * | 2019-07-04 | 2021-03-02 | 中铁大桥科学研究院有限公司 | Suspension bridge cable clamp screw axial force construction method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170315 Termination date: 20180513 |