CN108776074A - A kind of tool wear real-time monitoring system based on EPB shield tunneling - Google Patents
A kind of tool wear real-time monitoring system based on EPB shield tunneling Download PDFInfo
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- CN108776074A CN108776074A CN201810697075.8A CN201810697075A CN108776074A CN 108776074 A CN108776074 A CN 108776074A CN 201810697075 A CN201810697075 A CN 201810697075A CN 108776074 A CN108776074 A CN 108776074A
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- slip ring
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- monitoring system
- conducting slip
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 19
- 230000005641 tunneling Effects 0.000 title claims abstract description 12
- 238000005299 abrasion Methods 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims abstract description 6
- 230000008054 signal transmission Effects 0.000 claims abstract description 5
- 238000012545 processing Methods 0.000 claims abstract description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 5
- 230000005465 channeling Effects 0.000 abstract description 3
- 238000007689 inspection Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000003292 glue Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 235000009161 Espostoa lanata Nutrition 0.000 description 1
- 240000001624 Espostoa lanata Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229910000923 precious metal alloy Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000001235 sensitizing effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/093—Control of the driving shield, e.g. of the hydraulic advancing cylinders
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- Immunology (AREA)
- Pathology (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a kind of tool wear real-time monitoring system based on EPB shield tunneling, including several sensors, amplifier, signal transmitting device, conducting slip ring, PLC controller, host computer；Each sensor distributing installation is connect in cutter and with the amplifier in knife beam, amplifier is connect with the rotor for the conducting slip ring being located at turn around on rear side of center, the rotor of conducting slip ring connect with cutterhead and is rotated together with cutterhead, the stator of conducting slip ring is mounted in shield body and is connect with signal transmitting device, signal transmitting device, which is mounted in shield body, to be connect with controller and will detect in signal transmission to controller, and host computer real-time display tool abrasion is sent to after controller processing.Using resistance-type wear sensor, amplifier, signal transmitting device, conducting slip ring channeling tool wear monitoring system; solve the danger of shutdown inspection tool wear in work progress; construction efficiency can be improved, manpower consumption and operating risk is reduced, increases the service life of knife disc tool.
Description
Technical field
The invention belongs to shield machine monitoring technical field, be related to a kind of tool wear based on EPB shield tunneling and monitor in real time be
System.
Background technology
Cutter maintenance is the important link in shield machine application process.Currently, shield machine operation driver can not tunnel
Tool wear situation is observed in journey, must be shut down when checking knife disc tool, and construction worker is manually overhauled
Preceding to need a large amount of time, this largely affects driving progress.In addition in maintenance process, due to cutterhead knife
Tool is in unsupported area domain, therefore certain personal safety risk can be brought to service personnel.So realizing cutter visualization pipe
Reason is always the key subject of shield machine industry research and development.It is existing monitoring tool wear main method include：Based on hydraulic oil
The tool wear system of formula, failure rate is relatively low, safeguards simply, the disadvantage is that abrasion condition cannot be monitored in real time, only cutter is ground
Just there is signal output when damaging failure；Based on the monitoring system of ultrasonic wave positioning, tool abrasion can be also monitored in real time, but right
Communication need is higher, and it is its technological difficulties how signal to be transmitted to receiving terminal from transmitting terminal well.Both the above monitoring side
There are still following deficiencies for method：（1）It is inadequate to measure precision；（2）More demanding to guard system, enforcement difficulty is big.
Invention content
Low for current shield cutter monitoring accuracy, the big technical problem of enforcement difficulty, the present invention provides a kind of based on soil
The tool wear real-time monitoring system for pressing shield, using resistance-type wear sensor, amplifier, signal transmitting device, conducting slip ring
Channeling tool wear monitoring system solves the danger of shutdown inspection tool wear in work progress, can improve construction effect
Rate reduces manpower consumption and operating risk, increases the service life of knife disc tool.
In order to solve the above technical problems, the technical solution adopted in the present invention is as follows：
A kind of tool wear real-time monitoring system based on EPB shield tunneling, including several sensors, amplifier, signal transmitting device,
Conducting slip ring, PLC controller, host computer；Each sensor distributing installation is connect in cutter and with the amplifier in knife beam, is put
Big device is connect with the rotor for the conducting slip ring being located at turn around on rear side of center, and the rotor of conducting slip ring connect with cutterhead and with cutterhead one
Play rotation, the stator of conducting slip ring is mounted in shield body and connect with signal transmitting device, signal transmitting device be mounted in shield body and
Controller is connected and will be detected in signal transmission to controller, and host computer real-time display tool wear is sent to after controller processing
Amount.
The cutter is removably mounted on cutterhead, because being installed using scraper or tearing cutter removably, and is being passed
A pair of of aviation socket of sensor cabling in the raised floor position setting, while the protection in structure is carried out to this barish part and is improved,
And be fixed by bolts mode and fix, convenient for when late detection is needed replacing to cutter, cutter can be changed quickly.
The cutter is scraper or tearing cutter.
Sensing mounting hole is tiltedly installed on the cutter, and the axis of the sensing mounting hole and blade side surface are flat
Row, sensor are mounted in sensing mounting hole.Originally difficult wiring and easy failure in knife beam, now use cloth steel pipe in knife beam
It as sensing mounting hole, and is attached using hydraulic tube in the both ends trace portions of steel pipe inner sensor, realizes circuit in knife
It is not exposed in disk, it protects completely.
The sensor is resistance-type wear sensor, and the tail portion outlet of sensor is through the aviation socket and knife beam in cutterhead
Interior amplifier connects and is arranged with hydraulic protective pipe in the outlet of tail portion.
The present invention is using resistance-type wear sensor, amplifier, signal transmitting device, conducting slip ring channeling tool wear
Detecting system solves the danger of shutdown inspection tool wear in work progress, can improve construction efficiency, reduce manpower consumption and
Operating risk increases the service life of knife disc tool.Moreover, amplifier is placed in knife beam, multiple sensor signal is can receive,
And use 485 serial communications, in this way can to avoid multiple sensor line from Tu Cang through the centre of gyration to shield body receiving instrument；And it returns
Turn center and can not reserve prodigious hole to walk multiple sensor line.360 degree of confessions without limitation rotation of cutterhead are solved using conducting slip ring
Electricity and Communication can preferably transmit power and signal, and power supply and transmission signal are concentrated in slip ring, are avoided that power completely
Between signal, interference problem between signal and signal, and the electromagnetic interference inside outer bound pair slip ring can be prevented.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the principle of the present invention block diagram.
Fig. 2 is the structural schematic diagram of sensor of the invention.
Fig. 3 is scraper trepanning schematic diagram of the present invention.
Fig. 4 is tearing cutter trepanning schematic diagram of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of not making the creative labor
Embodiment shall fall within the protection scope of the present invention.
A kind of tool wear real-time monitoring system based on EPB shield tunneling, as shown in Figure 1, including several sensors, amplification
Device, signal transmitting device, conducting slip ring, PLC controller, host computer, the sensor is resistance-type wear sensor, such as Fig. 2 institutes
Show, the tail portion outlet of sensor connect with the amplifier in knife beam through the aviation socket in cutterhead and is arranged in the outlet of tail portion
Hydraulic protective pipe.Specifically, sensing mounting hole, and the axis and blade of the sensing mounting hole are tiltedly installed on the cutter
Side surface is parallel, and sensor is mounted in sensing mounting hole.Originally difficult wiring and easy failure in knife beam, now use knife beam
Interior cloth steel pipe is attached in the both ends trace portions of steel pipe inner sensor using hydraulic tube as sensing mounting hole, is realized
Circuit is not exposed in cutterhead, protects completely.
Sensor leading portion is wear sensitive head, and rear end part is device circuitry area.When work sensitizing range with blade together by
Abrasion.Each Sensor tail outlet（4 core shielding lines）Length is 200-250mm, and is connected to waterproof plug, constitutes sensor
Overall structure.Fig. 2 center line a-b left parts（Half including waterproof plug）For the overall structure of sensor, right part
（Include the other half of waterproof plug）It will be placed on inside cutterhead knife beam.The cable part on right side then passes through from scraper and tearing cutter
Amplifier in hydraulic protective pipe to knife beam.
Each sensor distributing installation connect in cutter and with the amplifier in knife beam, amplifier and is located at turn around
The rotor of conducting slip ring on rear side of the heart connects, and the rotor of conducting slip ring connect with cutterhead and rotated together with cutterhead, conducting slip ring
Stator be mounted in shield body and connect with signal transmitting device, signal transmitting device, which is mounted in shield body, to be connect with controller and will examine
It surveys in signal transmission to controller, host computer real-time display tool abrasion is sent to after controller processing.
In the present embodiment, for cutters such as later stage quick-replaceable scraper or tearing cutters, the cutter is removably mounted at
On cutterhead, because being installed using scraper or tearing cutter removably, and a pair of of aviation is set in sensor base outgoing line position
Socket, while the protection in structure is carried out to this barish part and is improved, and be fixed by bolts mode and fix, it is convenient for
When late detection is needed replacing to cutter, cutter can be changed quickly.
Specifically, it by the position of Fig. 3 and Fig. 4, is first punched on scraper and tearing cutter to install sensor.The through-hole, which has, to incline
Rake angle determines that the principle at the hole inclination angle is：Axially bored line is parallel with blade side surface, and axially bored line is smaller at a distance from blade sides
Better.The diameter of through-hole is 5mm, the diameter of respective sensor tailstock portion bigger 1mm than sensor sensing head in sensitive head region
For 9 ~ 10mm, each segment length is consistent with sensor.It is especially noted that the diameter of sensor front area is sure to not surpass
Go out sensing head diameter 1mm, otherwise can cause measurement error.Cutter and tearing cutter position of opening are as shown in Figure 3 and Figure 4, select knife
Have installation site of the central part between two blades of leading portion as sensor.If the diameter of sector hole is more than 5mm, meeting before cutter
Sensor measurement errors are increased, therefore should first be inlaid into steel column and block the hole, then presses size again and punches.
Scraper or tearing cutter are to be bolted to connection on cutterhead pedestal, and sensor base is designed as plug shape
Formula, and plug portion is placed in mounting seat hole, fastening bolt, completes scraper or tearing cutter later（Containing tool wear monitoring）
Installation.
And more densely cross-linked in order to protect, the present invention uses WL-036 type epoxy resin（Epoxy resin ontology and curing agent）
Fixed sensor.Epoxy resin ontology and curing agent 1：1 is mixed 2 ~ 4 minutes, is then allowed to stand and waits within 3-5 minutes that air pocket overflows
Go out.Glue after stirring is poured slowly into along hole wall in hole（It prevents air from getting lodged in and forms stomata in aperture）, when stirring and standing
Between do not exceed 10 minutes, otherwise glue starts to cure, and mobility will be deteriorated.The glue in sensing mounting hole is poured into from port about 15mm
When, sensor is slowly inserted into, glue will cover the upper planes align on the top and hole of sensor.
Before pouring, the oil stain in sensing mounting hole first is removed with cotton ball soaked in alcohol, to ensure epoxy resin and cutter material
Adhesive strength.When pouring, the small-bore sensed in mounting hole is sealed using adhesive tape, is used in combination strong magnet piece that aperture is sucked, is prevented
Glue outflows.When pouring completion 2/3rds, insert the sensors into hole to bottom hole, after twenty four hours to be stood, sensing
Device pours completion.
A waterproof connector is designed at electric slip ring rotor outgoing line, prevents front water burst from entering shield body, and electric slip ring protection etc.
Grade is designed as IP67.Electric slip ring internal brush uses precious metal alloys material, because brush bundle is made of more brush filaments, it can be ensured that with
The Multi-contact of becket, and then improve electrical efficiency；Because the elasticity of more brush filaments itself reduces contact.These characteristics
It ensure that the stability and durability of slip ring.If signal transmission exception occurs in midway slip ring, can connect in slip-ring rotor outlet
An aviation plug is connect, fast quick-detach simultaneously repairs electric slip ring.
Electric slip ring is made of the part such as stator, rotor, brush assembly of electric, fixing bracket.Electric slip ring stator line and rotor line connect
Socket part point is handled using encapsulating, and degree of protection can reach IP67.It is conductive to ensure that the conducting ring of brush and electric slip ring comes into full contact with
Ring is designed to " V " shape ring.In addition brush wires are to transmit signal and conducting by the sliding contact of elastic pressure and " V " shape annular groove
Electric current.
The present invention can measure the wear extent of scraper and tearing cutter, and then artificial warehouse entry is avoided to check tool wear, reduce people
Power consumes and operating risk, increases the service life of knife disc tool, realizes the visualized management of blade wears amount, hommization
Auxiliary shield driver judges whether replacement cutter, and reliable basic data and technical support are provided for optimization shield machine construction,
The blade wears rule for exploring large-diameter shield machine different location in tunneling process, to the intelligent, efficient, safe of a new generation
And the shield machine R and D of hommization are of great significance.
Described above is only presently preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (5)
1. a kind of tool wear real-time monitoring system based on EPB shield tunneling, it is characterised in that：Including several sensors, amplification
Device, signal transmitting device, conducting slip ring, PLC controller, host computer；Each sensor distributing installation in cutter and in knife beam
Amplifier connection, amplifier connect with the rotor for the conducting slip ring being located at turn around on rear side of center, the rotor and knife of conducting slip ring
Disk is connected and is rotated together with cutterhead, and the stator of conducting slip ring is mounted in shield body and is connect with signal transmitting device, signal transmitting
Device, which is mounted in shield body, to be connect with controller and will detect in signal transmission to controller, and host computer is sent to after controller processing
Real-time display tool abrasion.
2. the tool wear real-time monitoring system according to claim 1 based on EPB shield tunneling, it is characterised in that：The knife
Tool is removably mounted on cutterhead.
3. the tool wear real-time monitoring system according to claim 1 or 2 based on EPB shield tunneling, it is characterised in that：Institute
It is scraper or tearing cutter to state cutter.
4. the tool wear real-time monitoring system according to claim 1 or 2 based on EPB shield tunneling, it is characterised in that：Institute
It states and is tiltedly installed with sensing mounting hole on cutter, and the axis of the sensing mounting hole is parallel with blade side surface, sensor peace
In sensing mounting hole.
5. the tool wear real-time monitoring system according to claim 4 based on EPB shield tunneling, it is characterised in that：The biography
Sensor is resistance-type wear sensor, and the tail portion outlet of sensor is connect through the aviation socket in cutterhead with the amplifier in knife beam
And hydraulic protective pipe is arranged in the outlet of tail portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810697075.8A CN108776074A (en) | 2018-06-29 | 2018-06-29 | A kind of tool wear real-time monitoring system based on EPB shield tunneling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810697075.8A CN108776074A (en) | 2018-06-29 | 2018-06-29 | A kind of tool wear real-time monitoring system based on EPB shield tunneling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108776074A true CN108776074A (en) | 2018-11-09 |
Family
ID=64030561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810697075.8A Pending CN108776074A (en) | 2018-06-29 | 2018-06-29 | A kind of tool wear real-time monitoring system based on EPB shield tunneling |
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| CN (1) | CN108776074A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296375A (en) * | 2018-11-28 | 2019-02-01 | 中国矿业大学(北京) | The wear monitoring point method for arranging and wear monitoring method of the fast rail tunneling shield rounding machine cutter of major diameter administrative region of a city |
| CN112031782A (en) * | 2020-09-03 | 2020-12-04 | 中铁隧道局集团有限公司 | Detection device of shield machine |
| CN113959712A (en) * | 2021-10-28 | 2022-01-21 | 天津阳润科技有限公司 | Visualization system and method for chain wear monitoring |
| WO2022228904A1 (en) | 2021-04-28 | 2022-11-03 | Herrenknecht Aktiengesellschaft | Cutting wheel for a tunnel boring machine |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296375A (en) * | 2018-11-28 | 2019-02-01 | 中国矿业大学(北京) | The wear monitoring point method for arranging and wear monitoring method of the fast rail tunneling shield rounding machine cutter of major diameter administrative region of a city |
| CN112031782A (en) * | 2020-09-03 | 2020-12-04 | 中铁隧道局集团有限公司 | Detection device of shield machine |
| WO2022228904A1 (en) | 2021-04-28 | 2022-11-03 | Herrenknecht Aktiengesellschaft | Cutting wheel for a tunnel boring machine |
| DE102021110855A1 (en) | 2021-04-28 | 2022-11-03 | Herrenknecht Aktiengesellschaft | Cutting wheel for a tunnel boring machine |
| CN113959712A (en) * | 2021-10-28 | 2022-01-21 | 天津阳润科技有限公司 | Visualization system and method for chain wear monitoring |
| CN113959712B (en) * | 2021-10-28 | 2024-04-12 | 天津阳润科技有限公司 | Visualization system and method for chain wear monitoring |
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