CN102288099A - Shield machine cutter wearing capacity on-line monitoring device based on resistor network - Google Patents
Shield machine cutter wearing capacity on-line monitoring device based on resistor network Download PDFInfo
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- CN102288099A CN102288099A CN 201110190866 CN201110190866A CN102288099A CN 102288099 A CN102288099 A CN 102288099A CN 201110190866 CN201110190866 CN 201110190866 CN 201110190866 A CN201110190866 A CN 201110190866A CN 102288099 A CN102288099 A CN 102288099A
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Abstract
The invention discloses a shield machine cutter wearing capacity on-line monitoring device based on a resistor network. The structure comprises a resistor network cutter wearing capacity sensor formed by the resistor network, a resistor network base and resistor lead plugs, and the sensor is embedded in the cutter of a shield machine, the position of the resistor network, which is contacted with the cutter, is filled with epoxy resin, so that the resistor network can be ensured to be insulated from the cutter, the position of the resistor network base, which is contacted with the cutter, is provided with a rubber gasket, the rubber gasket has a sealing function, the resistor network base and the cutter are fixed into a whole body through a locking nut, a cutter head is provided with three signal amplifiers, the positions of the back surface of the cutter head, which correspond to the signal amplifiers, are provided with three transmitting antennas, the positions of the inner wall of an earth pressure bin, which are opposite to the transmitting antennas, are provided with receiving antennas, and a shield main engine room is provided with a signal receiving device. The invention can predict the wearing state of the excavating cutter on line so as to effectively reduce or avoid the occurrence of dangerous accidents of huge economic loss, personnel injury and the like caused by the emergency shutdown of the cutter.
Description
Technical field
The invention belongs to the detection technique of heavy construction equipment, be specifically related to a kind ofly be used for shield excavation machine construction tool abrasion is carried out device for monitoring.
Technical background
Shield excavation machine is the Large-Scale Equipment of tunnel, subway construction.Cutterhead drives cutter and tunnels, the used cutter diameter 6.2-6.4m of subway work wherein, and knife disc tool is the critical component of driving, also is parts the most easy to wear and that lost efficacy, tool wear mainly is meant the wearing and tearing of blade and cutter hub.The wearing and tearing of cutter are also entail dangers to personal safety except can't tunneling.Monitor the degree of wear of cutter in the construction in real time, become the core technology that external digging device manufacturer competitively develops.
Present have two kinds to the cutter inspection: a kind of is that the workmen enters the cutterhead position through the excess pressure storehouse under stopped status, checks and implementation and operation; Another kind method is at knife disc tool front end excavating shaft or side well, and the workmen enters the cutterhead front end and implements identical operation.A kind of method cost in back is high, though preceding a kind of inspection method is directly perceived, has a big risk.Mainly show as: (1) is shut down and may be caused because of peripheral soil body unstability initiation major accident; (2) inspection or exchanging knives process, only be subjected to the personnel of specialized training just can bear 2-5 times of atmospheric pressure in the pressure storehouse, particularly when constructing special locations such as being in river, important building, make this problem more highlight because of can't in time judging cutting-tool wear state.And above-mentioned two kinds of methods all want shutdown operation, shut down each time and all will bring huge cost expenditure.
Except the shutdown inspection method, the main both at home and abroad at present method on-line prediction cutting-tool wear state that adopts threshold detection method or boring parameter is estimated.
Threshold detection method.This method mainly adopts adjuvant, hydraulic pressure and embedded type sensor to wait to judge cutting-tool wear state.The principle of additive technology is that prepackage peculiar smell adjuvant or fluorescent material in cutter are in case tool wear above size allowable, just discharges peculiar smell or fluorescence is warned.The hydraulic pressure transducer technology is to feed oil pressure in cutter, causes oil circuit to reveal when tool wear surpasses the permission size and warns.Threshold detection technique to defective is: (1) signal of warning is a switching threshold, can't realize the continuous monitoring to wear extent; (2) sensor signal need adopt wire transmission mode mostly, and this mode is to the cabling requirement height and be difficult to maintenance.
The boring parameter estimation technique.Its ultimate principle is to obtain estimated value by the empirical curve of boring parameter under the desirable geologic condition (thrust, moment of torsion, driving speed, power etc.) or by semiempirical formula, the overall wear state that actual boring parameter value and estimated value are compared and estimated cutter.But the reflection of gained estimated value is the average of the overall wear extent of cutter, and its degree of reliability is subjected to the influence of two aspect factors: the one, and empirical curve or experimental formula are adapted to specific single geologic condition, lack universality.
In sum, at the industry requirement of large-scale full advance armament-related work efficient and safe operation, research and development knife disc tool state of wear safety monitoring technology has become problem anxious to be solved in the digging device engineering.Proposition of the present invention can obtain satisfied solution to an above-mentioned difficult problem.
Summary of the invention
The purpose of this invention is to provide a kind of sensor of judging the excavating tool state of wear.
Shield machine cutter wear extent on-Line Monitor Device based on the resistor chain formula, have resistor chain, resistor chain pedestal, cutter, rubber blanket, locknut, cutterhead, signal amplifier, emitting antenna, soil pressure cabin, receiving antenna, shield structure engine space and signal receiving device, its structural group becomes: constitute resistor chain formula tool wear sensor by resistor chain, resistor chain pedestal and resistance lead plug, resistor chain formula sensor is embedded in the cutter of shield machine.The position filling epoxy resin that resistor chain contacts with cutter is to guarantee the insulation of resistor chain and cutter.The position that the resistor chain pedestal contacts with cutter is provided with rubber blanket, and rubber blanket also has sealing function, and the resistor chain pedestal is fixed as one with locknut and cutter.Cutterhead is provided with signal amplifier, is provided with emitting antenna in the corresponding position of the cutterhead back side and signal amplifier, is provided with receiving antenna at soil pressure cabin inwall and emitting antenna relative position, and shield structure engine space is provided with signal receiving device.The technical scheme of resistor chain formula tool wear sensor is: single resistance that resistor chain is arranged in parallel more than being listed as by two row or two constitutes, and resistor chain is processed on dielectric substrate in the P.e.c. mode.The resistor chain outside surface scribbles epoxy resins insulation, and dielectric substrate and resistance lead plug, resistor chain pedestal three are fixed as one.The single resistance of on the resistor chain each is connected in parallel, and equidistantly distributes between each single resistance.Receiving antenna is provided with three, is 120 ° of distributions.
The principle of work of resistor chain formula tool wear sensor is: be installed in resistor chain on the dielectric substrate as sensor main body, because this resistor chain is installed in the inside of excavating tool, resistor chain (sensor) top is concordant with the blade of cutter.Dielectric substrate and single resistance self are are also worn and torn simultaneously and even are ruptured when cutter is worn, thereby cause the all-in resistance of sensor self output to change.Designing the resistance of each resistance in advance, is linear relationship between design all-in resistance and the tool abrasion, and the variation of measuring this all-in resistance can obtain the wear extent of cutter.The variation of all-in resistance because cutterhead rotates, places the excavating tool on the cutterhead also to rotate, so measuring-signal transmits by the mode of wireless transmit by the output of the resistance lead plug on the resistor chain pedestal thereupon.All-in resistance resistance signal is connected to signal amplifier in (cutterhead spoke in) confined space by the resistance lead plug, passes to the emitting antenna of cutterhead dorsal part through amplifying signal, is received by the receiving antenna in the soil pressure cabin then.Shield structure engine space (nonrotationally) is shield machine staff's a operation room, and the signal receiving device that is provided with in the shield structure engine space receives in real time, the recorder antenna transmits (tool abrasion) resistance signal, and this signal is analyzed and controlled by computing machine.
Characteristics of the present invention and beneficial effect be, state of wear that can the real-time estimate excavating tool effectively reduces or avoid the generation of perils such as the tremendous economic loss that causes because of the cutter force outage and personal injury.Owing to can in time grasp the ruuning situation of cutterhead in the construction, cutter, can effectively ensure the reliability that guarantees driving.Also prolonged simultaneously the peace serviceable life of shield machine.
Description of drawings
Fig. 1 is the structural drawing of resistor chain formula tool wear sensor.
Fig. 2 places the interior structural drawing of excavating tool for resistor chain formula tool wear sensor.
Fig. 3 transmits involved shield machine part-structure schematic diagram for the tool wear signal.
Fig. 4 is the layout synoptic diagram of antenna on cutterhead.
Embodiment
Below in conjunction with accompanying drawing and by specific embodiment structure of the present invention is further described.Need to prove that present embodiment is narrative, rather than determinate, can not limit protection scope of the present invention with this.
Based on the shield machine cutter wear extent on-Line Monitor Device of resistor chain formula, its structure is to constitute resistor chain formula tool wear sensor (Fig. 1) by resistor chain 1, resistor chain pedestal 2 and resistance lead plug 3.Resistor chain formula sensor is embedded in the cutter 4 of shield machine, the position filling epoxy resin that resistor chain contacts with cutter, and the position that resistor chain pedestal 2 contacts with cutter is provided with rubber blanket 5, and resistor chain pedestal 2 is by locknut 6 and cutter be fixed as one (Fig. 2).Cutterhead 7 is provided with signal amplifier 8, is provided with emitting antenna 9 in the corresponding position of the cutterhead back side and signal amplifier, is provided with receiving antenna 11 at soil pressure cabin 10 inwalls and emitting antenna relative position.Shield structure engine space 12 is provided with signal receiving device 13 (Fig. 3).Single resistance that resistor chain 1 is arranged in parallel more than being listed as by two row or two constitutes, and resistor chain is processed on dielectric substrate 14 in the P.e.c. mode, and the resistor chain outside surface scribbles epoxy resins insulation.Dielectric substrate 14 is fixed as one with resistance lead plug 3, resistor chain pedestal 2 threes.The single resistance of on the resistor chain 1 each is connected in parallel, and equidistantly distributes between each single resistance.Receiving antenna 9 is provided with three, every 120 ° at interval (Fig. 4).The output terminal of all-in resistance can be that two leads also can be the movable plugs of low contact resistance, and the movable plug by low contact resistance is connected with secondary instrument, has so not only made things convenient for connection but also can reduce to disturb.The resistor chain pedestal of sensor lower end, its effect are play the role of positioning when sensor is installed on cutter inside (as Fig. 2).
The dielectric substrate of present embodiment is a printed circuit board (PCB).Single resistance that design two row are arranged in parallel on printed circuit board (PCB), the physical dimension of resistance is 0.3 * 0.25mm, the resolution of sensor can be accomplished 0.3mm.Spacing between each single resistance is 0.6mm.The initial all-in resistance of sensor is 2 Ω, whenever rubs a total resistance of resistance and increases 0.5 Ω, measures total resistance value and can learn and rubbed several resistance.Single resistance quantity that the degree of wear of cutter equals to be rubbed multiply by the spacing between resistance.
Sensor is installed in the mounting hole of cutter, realizes the location by the pedestal cylinder of bottom and the inner face of mounting hole, is lined with sealing gasket between the two, prevents that underground water from flowing into.Fill with epoxy resin in the space between sensor and the mounting hole, play the auxiliary fixation of sensor and the effect of sealing.The locknut of cutter lower end plays the effect of the fastening sensor of essence.Because it is underground that shield machine is operated in, engine space, cutterhead, cutter are surrounded by rock soil medium and underground water, so signal amplifier is arranged on (in the spoke) cutterhead in the confined space.Emitting antenna is installed on the dorsal part of cutterhead and protects with the high-strength engineering plastic box, and receiving antenna is installed on the front surface of shield machine engine space.In order to overcome rock soil medium and water to the radiowave shielding action, receiving antenna has been installed three, and antenna is also with the protection of high-strength engineering plastic box.Measuring-signal is finished the measurement and the signal transmission of resistor chain wear extent by the mode of wireless transmit.
Claims (4)
1. based on the shield machine cutter wear extent on-Line Monitor Device of resistor chain formula, has resistor chain, the resistor chain pedestal, cutter, rubber blanket, locknut, cutterhead, signal amplifier, emitting antenna, the soil pressure cabin, receiving antenna, shield structure engine space and signal receiving device, it is characterized in that by resistor chain (1), resistor chain pedestal (2) and resistance lead plug (3) constitute resistor chain formula tool wear sensor, resistor chain formula sensor is embedded in the cutter (4) of shield machine, the position filling epoxy resin that resistor chain contacts with cutter, the position that resistor chain pedestal (2) contacts with cutter is provided with rubber blanket (5), resistor chain pedestal (2) is fixed as one by locknut (6) and cutter, cutterhead (7) is provided with signal amplifier (8), be provided with emitting antenna (9) in the corresponding position of the cutterhead back side and signal amplifier, be provided with receiving antenna (11) at soil pressure cabin (10) inwall and emitting antenna relative position, shield structure engine space (12) is provided with signal receiving device (13).
2. according to the described shield machine cutter wear extent on-Line Monitor Device of claim 1 based on the resistor chain formula, it is characterized in that described resistor chain (1) by two row or more than two row single resistance of being arranged in parallel constitute, resistor chain is processed on dielectric substrate (14) in the P.e.c. mode, the resistor chain outside surface scribbles epoxy resins insulation, and dielectric substrate (14) is fixed as one with described resistance lead plug (3), resistor chain pedestal (2) three.
3. according to claim 1 or 2 described shield machine cutter wear extent on-Line Monitor Device, it is characterized in that each the single resistance on the described resistor chain (1) is connected in parallel, equidistantly distribute between each single resistance based on the resistor chain formula.
4. according to the described shield machine cutter wear extent on-Line Monitor Device of claim 1, it is characterized in that described receiving antenna (9) is provided with three, 120 ° at every interval based on the resistor chain formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110190866 CN102288099A (en) | 2011-07-08 | 2011-07-08 | Shield machine cutter wearing capacity on-line monitoring device based on resistor network |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110190866 CN102288099A (en) | 2011-07-08 | 2011-07-08 | Shield machine cutter wearing capacity on-line monitoring device based on resistor network |
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| CN102288099A true CN102288099A (en) | 2011-12-21 |
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| CN 201110190866 Pending CN102288099A (en) | 2011-07-08 | 2011-07-08 | Shield machine cutter wearing capacity on-line monitoring device based on resistor network |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148771A (en) * | 2013-02-27 | 2013-06-12 | 中南大学 | Real-time tunnel boring machine (TBM) hob abrasion monitoring device |
| CN103698237A (en) * | 2013-12-30 | 2014-04-02 | 天津大学 | Resistor column core type shield cutter abrasion sensor and abrasion loss monitoring device |
| CN104111346A (en) * | 2014-07-17 | 2014-10-22 | 石家庄铁道大学 | Working and abrasion state on-line detection method for shield hob |
| CN105466327A (en) * | 2015-12-31 | 2016-04-06 | 中国铁建重工集团有限公司 | Sensor for wear detection on shield machine cutter, device and cutter system |
| CN105466321A (en) * | 2015-12-31 | 2016-04-06 | 中国铁建重工集团有限公司 | Cutting tool wear detection method |
| CN105486216A (en) * | 2015-12-31 | 2016-04-13 | 中国铁建重工集团有限公司 | Shield-machine cutter wear detection device and shield-machine cutter system |
| CN105606013A (en) * | 2015-10-29 | 2016-05-25 | 上海创申重型装备制造有限公司 | Wear extent detecting sensor for wear resistant member of crusher |
| CN105627899A (en) * | 2016-03-07 | 2016-06-01 | 武汉大学 | Online real-time shield scraper wear monitoring system |
| CN106610362A (en) * | 2015-10-21 | 2017-05-03 | 上海力行工程技术发展有限公司 | Component for detecting wear extent of steel structure |
| CN106644328A (en) * | 2017-03-15 | 2017-05-10 | 中南大学 | Cutter head panel wear detection device in form of micro digital switch |
| CN106770503A (en) * | 2017-03-15 | 2017-05-31 | 中南大学 | A kind of cutter head panel wear detector of resistor network form |
| CN106885642A (en) * | 2017-03-15 | 2017-06-23 | 中南大学 | A kind of cutterhead mud lining detection means |
| CN107314735A (en) * | 2017-06-03 | 2017-11-03 | 东北电力大学 | A kind of rock tunnel(ling) machine tool abrasion appraisal procedure |
| CN108716897A (en) * | 2018-06-23 | 2018-10-30 | 中铁九局集团第四工程有限公司 | A kind of shield machine cutter abrasion quantitative detecting method and detection device based on technology of Internet of things |
| CN108776074A (en) * | 2018-06-29 | 2018-11-09 | 中铁工程装备集团有限公司 | A kind of tool wear real-time monitoring system based on EPB shield tunneling |
| CN109000551A (en) * | 2018-06-23 | 2018-12-14 | 中铁九局集团第四工程有限公司 | It is embedded in the synchronous abrasion distance measuring sensor of resistance-type and its application |
| 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 |
| CN109672509A (en) * | 2019-01-18 | 2019-04-23 | 北京工业大学 | Communication means and communication system in shield machine cabin |
| CN110378069A (en) * | 2019-08-01 | 2019-10-25 | 南京坤拓土木工程科技有限公司 | Method for predicting accumulated mass loss rate of cutter of tunneling machine |
| CN112648915A (en) * | 2020-12-03 | 2021-04-13 | 中船重型装备有限公司 | Shield constructs machine knife dish real-time supervision wearing and tearing device |
| CN113464655A (en) * | 2021-06-23 | 2021-10-01 | 西安交通大学 | Shield machine and main drive seal and method capable of detecting abrasion loss on line |
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| JP2004176354A (en) * | 2002-11-26 | 2004-06-24 | Tobishima Corp | Detecting sensor for cutter abrasion of shield machine, and detecting device for the same |
| CN201540105U (en) * | 2009-09-29 | 2010-08-04 | 中铁隧道集团二处有限公司 | Tool-wear monitoring device for shield machine |
| CN201561849U (en) * | 2010-02-26 | 2010-08-25 | 海瑞克(广州)隧道设备有限公司 | Automatic monitoring device for shield machine cutter abrasion |
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| JP2004176354A (en) * | 2002-11-26 | 2004-06-24 | Tobishima Corp | Detecting sensor for cutter abrasion of shield machine, and detecting device for the same |
| CN201540105U (en) * | 2009-09-29 | 2010-08-04 | 中铁隧道集团二处有限公司 | Tool-wear monitoring device for shield machine |
| CN201561849U (en) * | 2010-02-26 | 2010-08-25 | 海瑞克(广州)隧道设备有限公司 | Automatic monitoring device for shield machine cutter abrasion |
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148771B (en) * | 2013-02-27 | 2016-03-02 | 中南大学 | A kind of TBM hob abrasion real-time monitoring device |
| CN103148771A (en) * | 2013-02-27 | 2013-06-12 | 中南大学 | Real-time tunnel boring machine (TBM) hob abrasion monitoring device |
| CN103698237A (en) * | 2013-12-30 | 2014-04-02 | 天津大学 | Resistor column core type shield cutter abrasion sensor and abrasion loss monitoring device |
| CN103698237B (en) * | 2013-12-30 | 2016-02-24 | 天津大学 | Resistor column core type shield cutter abrasion sensor and wear extent monitoring device |
| CN104111346A (en) * | 2014-07-17 | 2014-10-22 | 石家庄铁道大学 | Working and abrasion state on-line detection method for shield hob |
| CN104111346B (en) * | 2014-07-17 | 2015-04-15 | 石家庄铁道大学 | Working and abrasion state on-line detection method for shield hob |
| CN106610362A (en) * | 2015-10-21 | 2017-05-03 | 上海力行工程技术发展有限公司 | Component for detecting wear extent of steel structure |
| CN105606013A (en) * | 2015-10-29 | 2016-05-25 | 上海创申重型装备制造有限公司 | Wear extent detecting sensor for wear resistant member of crusher |
| CN105486216A (en) * | 2015-12-31 | 2016-04-13 | 中国铁建重工集团有限公司 | Shield-machine cutter wear detection device and shield-machine cutter system |
| CN105466321A (en) * | 2015-12-31 | 2016-04-06 | 中国铁建重工集团有限公司 | Cutting tool wear detection method |
| CN105486216B (en) * | 2015-12-31 | 2018-07-10 | 中国铁建重工集团有限公司 | A kind of shield machine cutter abrasion detection device and shield machine cutter system |
| CN105466321B (en) * | 2015-12-31 | 2018-05-04 | 中国铁建重工集团有限公司 | A kind of abrasion of cutting tool detection method |
| CN105466327A (en) * | 2015-12-31 | 2016-04-06 | 中国铁建重工集团有限公司 | Sensor for wear detection on shield machine cutter, device and cutter system |
| CN105627899B (en) * | 2016-03-07 | 2018-03-27 | 武汉大学 | A kind of shield blade wears on-line real time monitoring system |
| CN105627899A (en) * | 2016-03-07 | 2016-06-01 | 武汉大学 | Online real-time shield scraper wear monitoring system |
| CN106885642A (en) * | 2017-03-15 | 2017-06-23 | 中南大学 | A kind of cutterhead mud lining detection means |
| CN106770503A (en) * | 2017-03-15 | 2017-05-31 | 中南大学 | A kind of cutter head panel wear detector of resistor network form |
| CN106644328A (en) * | 2017-03-15 | 2017-05-10 | 中南大学 | Cutter head panel wear detection device in form of micro digital switch |
| CN107314735A (en) * | 2017-06-03 | 2017-11-03 | 东北电力大学 | A kind of rock tunnel(ling) machine tool abrasion appraisal procedure |
| CN108716897A (en) * | 2018-06-23 | 2018-10-30 | 中铁九局集团第四工程有限公司 | A kind of shield machine cutter abrasion quantitative detecting method and detection device based on technology of Internet of things |
| CN109000551A (en) * | 2018-06-23 | 2018-12-14 | 中铁九局集团第四工程有限公司 | It is embedded in the synchronous abrasion distance measuring sensor of resistance-type and its application |
| CN108776074A (en) * | 2018-06-29 | 2018-11-09 | 中铁工程装备集团有限公司 | A kind of tool wear real-time monitoring system based on EPB shield tunneling |
| 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 |
| CN109672509A (en) * | 2019-01-18 | 2019-04-23 | 北京工业大学 | Communication means and communication system in shield machine cabin |
| CN110378069A (en) * | 2019-08-01 | 2019-10-25 | 南京坤拓土木工程科技有限公司 | Method for predicting accumulated mass loss rate of cutter of tunneling machine |
| CN110378069B (en) * | 2019-08-01 | 2020-07-03 | 南京坤拓土木工程科技有限公司 | Method for predicting accumulated mass loss rate of cutter of tunneling machine |
| CN112648915A (en) * | 2020-12-03 | 2021-04-13 | 中船重型装备有限公司 | Shield constructs machine knife dish real-time supervision wearing and tearing device |
| CN113464655A (en) * | 2021-06-23 | 2021-10-01 | 西安交通大学 | Shield machine and main drive seal and method capable of detecting abrasion loss on line |
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Application publication date: 20111221 |