CN207764171U - A kind of tunnel bradyseism scroll wheel and its pneumatic type tunnel vacant analysis hammer instrument - Google Patents
A kind of tunnel bradyseism scroll wheel and its pneumatic type tunnel vacant analysis hammer instrument Download PDFInfo
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- CN207764171U CN207764171U CN201721358267.3U CN201721358267U CN207764171U CN 207764171 U CN207764171 U CN 207764171U CN 201721358267 U CN201721358267 U CN 201721358267U CN 207764171 U CN207764171 U CN 207764171U
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- air source
- scroll wheel
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- 239000000463 material Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 abstract description 8
- 238000012545 processing Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004836 empirical method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model is related to constructing tunnel technical field of quality detection, especially a kind of tunnel bradyseism scroll wheel and its pneumatic type tunnel vacant analysis hammer instrument.Including hammer mechanism, scroll wheel and sonic receiver structure, the hammer mechanism includes hammer bucket, tup, hammer seat and air source connector, it hammers bucket into shape and is equipped with pneumatic cavity and air source connector, pneumatic cavity is connected to air source, and air source air pressure drives tup movement in pneumatic cavity.It is not provided with driving equipment on the scroll wheel of pneumatic type tunnel vacant analysis hammering instrument, electromagnetism and noise jamming is reduced, improves acoustic receiver clarity, accuracy of detection is turned up.Connect with distal end air source by air source connector can realize it is pneumatically activated.
Description
Technical field
The utility model is related to constructing tunnel technical field of quality detection, especially a kind of tunnel bradyseism scroll wheel and its gas
Dynamic formula tunnel vacant analysis hammers instrument.
Background technology
Tunnel sound and vibration method detection is only limitted to artificial iron hammer using initial stage and taps two lining concrete surfaces, is artificially sentenced by echo
Disconnected situation of coming to nothing, judgement result vary with each individual, and belong to empirical method scope, and reliability and accuracy are low, and no data supports, nothing
Method forms effective data to testing result, graphic documentation is reported.It is automatic that tunnel vacant analysis is had developed regarding to the issue above
Instrument is hammered, hammers tunnel double-lining concrete surface automatically by instrument, so that concrete is generated vibration and is generated wave, to acquire wave
Complete vacant analysis.By picking up the wave character of the wave measured, tunnel two is judged by picking up the feature of vibrational waveform
Whether secondary lining cutting comes to nothing and comes to nothing degree.Tunnel vacant analysis hammers instrument and taps tunnel double-lining instead of artificial iron hammer completely automatically
High-altitude concrete surface.Automatic hammering instrument, which solves, manually to be hammered time-consuming, laborious, inefficient, eliminates the height of artificial working at height
Risk operation difficulty situation.
CN201510364939.0 is disclosed at present, come to nothing detecting head, tunnel void detector and detection tunnel of tunnel it is de-
Empty method, but the hammering component of existing automatic hammering instrument mostly uses electromagnetic mode driving, in order to improve electromagnetic driven efficiency electricity
Magnetic drive unit is directly arranged on automatic hammering instrument, and electromagnetic drive equipment will produce current noise when running and Electromagnetic Interference is adopted
Wave device is run, and causes gathered data deviation effects measurement accuracy.
Utility model content
The utility model solves prior art deficiency and provides the tunnel bradyseism rolling that a kind of construction risk is low, detection efficiency is high
Wheel and its pneumatic type tunnel vacant analysis hammer instrument.
Technical solution is used by the utility model solves its technical problem：
The wheel hub of a kind of tunnel bradyseism scroll wheel, the scroll wheel is equipped with buffer layer.
The material of the buffer layer is rubber.
Pneumatic type tunnel vacant analysis hammers instrument, including hammer mechanism, above-mentioned scroll wheel and sonic receiver structure, described
Hammer mechanism includes hammer bucket, tup, hammer seat and air source connector, and hammer bucket is equipped with pneumatic cavity and air source connector, pneumatic empty
Chamber is connected to air source, and air source air pressure drives tup movement in pneumatic cavity.
The tup is divided into moving piston and hammering block, and moving piston drives hammering block to be moved in pneumatic cavity.
The hammer bucket is equipped with upper limit ring, lower limit ring and return spring, and moving piston is in upper limit ring and lower limit ring
Between move, upper limit ring is connect by return spring with moving piston.
The beneficial effects of the utility model are：
1, a kind of pneumatic type tunnel vacant analysis hammers instrument, including hammer mechanism, scroll wheel and sonic receiver structure, described
Hammer mechanism includes hammer bucket, tup, hammer seat and air source connector, and hammer bucket is equipped with pneumatic cavity and air source connector, pneumatic empty
Chamber is connected to air source, and air source air pressure drives tup movement in pneumatic cavity.The scroll wheel of pneumatic type tunnel vacant analysis hammering instrument
On be not provided with driving equipment, reduce electromagnetism and noise jamming, improve acoustic receiver clarity, accuracy of detection is turned up.Pass through air source
Connector connect with distal end air source can realize it is pneumatically activated.
2, tup is divided into moving piston and hammering block, and moving piston drives hammering block to be moved in pneumatic cavity.Hammer block
Absorbing impact reduces moving piston damage probability.The hammer bucket is equipped with upper limit ring, lower limit ring and return spring, moving piston
It is moved between upper limit ring and lower limit ring, upper limit ring is connect by return spring with moving piston.By upper limit ring, under
Spacing ring limits hammering distance and snap-off-distance, convenient for being precisely controlled tup movement locus.Tup has fixed journey system, tup hammer
Retracted position is recoiled to naturally after hitting, with tunnel double-lining face instantaneous touch.
3, the wheel hub of scroll wheel is equipped with buffer layer, and the material of buffer layer is rubber.Buffer layer is convenient for and tunnel wall face paste
It closes, while the buffer layer of rubber material lowers rolling noise, improves sound collecting precision.
The utility model save trouble and labor in summary, it is economical and practical；It hammers, is greatly saved instead of conventional manual high-altitude
Cost of labor expense, eliminates high-altitude working safety risk hidden danger, and machinery replaces artificial；It is pneumatically activated to greatly improve hammering inspection
Survey efficiency.The parameters such as adjustable hammering intensity, hammering frequency；Frequency or strength as needed, it is automatic to hammer tunnel two
Serve as a contrast surface so that the two lining concrete hammered cause to vibrate and generate wave, are acquired and need wave character, to judge tunnel
Phenomena such as whether road comes to nothing.Tup vertically hammers tunnel double-lining face, and naturally then hammer chamber is withdrawn in rebound after hammering.Tup and tunnel
Two facings instantaneous touch, it is ensured that Concrete in Natural vibrates after hammering, does not receive the influences such as hammer short time stop constraint, encourages tunnel two
Secondary lining concrete generates wave, in order to avoid influence hammer effect.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of hammer mechanism；
Fig. 3 is the sectional view of hammer mechanism；
Fig. 4 is that existing equipment detects come to nothing tunnel double-lining time domain waveform and spectrum curve；
Fig. 5 is that the detection of the utility model is come to nothing tunnel double-lining time domain waveform and spectrum curve.
Specific implementation mode
The wheel hub 112 of a kind of tunnel bradyseism scroll wheel, the scroll wheel 110 is equipped with buffer layer 113.The buffer layer
113 material is rubber.
Pneumatic type tunnel vacant analysis hammers instrument, including hammer mechanism, above-mentioned scroll wheel and sonic receiver structure 111, institute
It includes hammer bucket 101, tup 102, hammer seat 103 and air source connector 104 to state hammer mechanism, and hammer bucket 101 is equipped with pneumatic cavity 105
With air source connector 104, pneumatic cavity 105 is connected to air source, and air source air pressure drives tup 102 in pneumatic cavity 105 to move.Institute
Tup 102 is stated to divide for moving piston 108 and hammering block 109, the drive hammering block 109 of moving piston 108 fortune in pneumatic cavity 105
It is dynamic.The hammer bucket 101 is equipped with upper limit ring 106, lower limit ring 107 and return spring 114, and moving piston 108 is in upper limit ring
It is moved between 106 and lower limit ring 107, upper limit ring 106 is connect by return spring 114 with moving piston 108.
Equipment disclosed in CN201510364939.0 and this case are subjected to contrast experiment, are described as follows：
The pulse for the acoustic signals that signal processing can generate hammering is sequentially numbered, just from label
The begin position of hammering signal starts counting up, and is calculated according to the π R (n-1) of formula S=2/k and obtains the pulse signal of arbitrary number n and correspond to
Hammering positions, wherein S is the distance between hammering positions and initial hammering positions, and R is the radius of wheel, and k is that wheel often rolls
The number of hammering in dynamic one week；
The method that tunnel comes to nothing comprising step：(1) wheel of the detecting head of the tunnel void detector is made to recline
Tunnel inner wall, and make inner wall described in the tup face of the hammering part；(2) make the wheel of the detecting head along the inner wall
It rolls, and the hammering part is made to hammer the inner wall；(3) acoustic signals that acquisition hammering generates；(4) to acoustic signals into
Row processing；(5) according to treated, acoustic signals carry out come to nothing identification and judgement；What corresponding established or comparison prestored sentences
Determine signature waveform, judges the compaction rate of tunnel inner wall；According to the number of turns or angle that wheel is walked, the mileage for calculating tunnel is long
Degree.Denoising do not carried out to acoustic signals wherein in step (4), elimination surface wave, analysis and place be overlapped to remaining significant wave
Reason.
Shown in Fig. 4 and Fig. 5, existing equipment causes noise jamming since electromagnetic equipment interferes, idler wheel rolls noise interference,
It needs manually to carry out denoising to acoustic signals, elimination surface wave, analysis and processing be overlapped to remaining significant wave, shown in Fig. 4
Data processing is not carried out be easy to cause erroneous judgement.If obviously fluctuating at 3 occur in Fig. 4 time domain vibrational waveforms, can not judge to be construction
Defect or electromagnetic interference, the artificial data that handle easily omit at tiny flaw, cause to measure inaccurate.Waveform shown in Fig. 5 is more preferably
Intuitively, it is more preferably accurate to test, and does not have to artificial processing Wave data, measurement accuracy is substantially improved.
Claims (3)
1. a kind of pneumatic type tunnel vacant analysis hammers instrument, including hammer mechanism, scroll wheel and sonic receiver structure, feature exist
In the scroll wheel（110）Wheel hub（112）It is equipped with buffer layer（113）；The buffer layer（113）Material be rubber；Institute
It includes hammer bucket to state hammer mechanism（101）, tup（102）, hammer seat（103）With air source connector（104）, hammer bucket into shape（101）It is equipped with
Pneumatic cavity（105）With air source connector（104）, pneumatic cavity（105）It is connected to air source, air source air pressure drives pneumatic cavity
（105）Interior tup（102）Movement.
2. a kind of pneumatic type tunnel vacant analysis according to claim 1 hammers instrument, it is characterised in that the tup（102）
It is divided into moving piston（108）With hammering block（109）, moving piston（108）Drive hammering block（109）In pneumatic cavity（105）It is interior
Movement.
3. a kind of pneumatic type tunnel vacant analysis according to claim 1 hammers instrument, it is characterised in that the hammer bucket（101）
It is equipped with upper limit ring（106）, lower limit ring（107）And return spring（114）, moving piston（108）In upper limit ring（106）With
Lower limit ring（107）Between move, upper limit ring（106）Pass through return spring（114）With moving piston（108）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721358267.3U CN207764171U (en) | 2017-10-20 | 2017-10-20 | A kind of tunnel bradyseism scroll wheel and its pneumatic type tunnel vacant analysis hammer instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721358267.3U CN207764171U (en) | 2017-10-20 | 2017-10-20 | A kind of tunnel bradyseism scroll wheel and its pneumatic type tunnel vacant analysis hammer instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207764171U true CN207764171U (en) | 2018-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721358267.3U Expired - Fee Related CN207764171U (en) | 2017-10-20 | 2017-10-20 | A kind of tunnel bradyseism scroll wheel and its pneumatic type tunnel vacant analysis hammer instrument |
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| CN (1) | CN207764171U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107688054A (en) * | 2017-10-20 | 2018-02-13 | 中铁西北科学研究院有限公司 | A kind of tunnel bradyseism scroll wheel and its pneumatic type tunnel vacant analysis hammers instrument |
| CN109778920A (en) * | 2019-02-25 | 2019-05-21 | 河海大学 | One kind is with foundation pile damage detection device and detection method |
| CN112363204A (en) * | 2020-10-20 | 2021-02-12 | 山东大学 | Pneumatic triggering device and method for shield tunnel geological evaluation |
-
2017
- 2017-10-20 CN CN201721358267.3U patent/CN207764171U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107688054A (en) * | 2017-10-20 | 2018-02-13 | 中铁西北科学研究院有限公司 | A kind of tunnel bradyseism scroll wheel and its pneumatic type tunnel vacant analysis hammers instrument |
| CN109778920A (en) * | 2019-02-25 | 2019-05-21 | 河海大学 | One kind is with foundation pile damage detection device and detection method |
| CN112363204A (en) * | 2020-10-20 | 2021-02-12 | 山东大学 | Pneumatic triggering device and method for shield tunnel geological evaluation |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180824 |
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| CF01 | Termination of patent right due to non-payment of annual fee |