CN107300369B - Shield/TBM hob abrasion measurement device and measurement method - Google Patents
Shield/TBM hob abrasion measurement device and measurement method Download PDFInfo
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- CN107300369B CN107300369B CN201710644196.1A CN201710644196A CN107300369B CN 107300369 B CN107300369 B CN 107300369B CN 201710644196 A CN201710644196 A CN 201710644196A CN 107300369 B CN107300369 B CN 107300369B
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- 238000005299 abrasion Methods 0.000 title claims abstract description 49
- 238000005259 measurement Methods 0.000 title claims abstract description 46
- 238000000691 measurement method Methods 0.000 title abstract description 6
- 238000006073 displacement reaction Methods 0.000 claims abstract description 32
- 238000004891 communication Methods 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 14
- 239000000835 fiber Substances 0.000 claims description 3
- 238000012805 post-processing Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 2
- 238000007418 data mining Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/20—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a shield/TBM hob abrasion measurement device and a measurement method, wherein the measurement device comprises a frame body, a fastening component and a mobile measurement component, wherein the frame body comprises a beam, a fixed supporting rod and an adjustable supporting rod which are respectively arranged at two ends of the beam and are vertically connected with the beam; the fastening component comprises a movable supporting leg movably connected with the adjustable supporting rod and a fastening bolt arranged at the lower end of the movable supporting leg; the mobile measuring assembly comprises a measuring head, a horizontal guide rail and a vertical guide rail, wherein the horizontal guide rail and the vertical guide rail are used for moving the measuring head; displacement sensors are respectively arranged at the fixed end of the horizontal guide rail and the upper end of the vertical guide rail. The measuring device is convenient to use, high in measuring precision and high in efficiency, compared with a measuring ruler, the measuring device avoids personnel reading errors, can acquire transverse and vertical position information of a worn part, further obtains comprehensive information of a section of a worn hob ring, and can realize two-dimensional section image reproduction of the worn hob through post-processing of data, so that the wear type of the hob can be accurately judged.
Description
Technical Field
The invention relates to the technical field of tunnel construction equipment, in particular to a shield/TBM hob abrasion measurement device and a measurement method.
Background
The shield tunneling machine and the TBM (full face tunnel boring machine) are widely applied to the engineering of railway tunnels, urban rails and the like as important tunnel construction equipment. The shield machine and the disc cutter in the TBM are used as key components for breaking rocks, the working environment is bad, and the abrasion of the cutter is unavoidable. The abrasion condition of the hob needs to be continuously detected in the construction process, the abrasion loss of the hob is accurately and comprehensively obtained, and then the replacement node can be reasonably determined. If the hob is not seriously worn and replaced in advance, the cutter is wasted; the excessive stress and the increased abrasion of adjacent cutters can be caused by the untimely replacement of the hob.
The traditional method for detecting the abrasion condition of the hob is to use a measuring ruler for measurement, and the measuring method has large randomness and low accuracy, and generally only measures the maximum abrasion size, so that the comprehensive information of the abrasion section cannot be effectively mastered; the online measurement technology of the hob has high cost, needs to modify the cutterhead, has insufficient reliability and is in a research and test stage. Therefore, a measuring device and a measuring method for accurately measuring the abrasion amount of the hob and judging the abrasion type without changing the cutter structure of the cutterhead are needed.
Disclosure of Invention
The invention aims to provide a shield/TBM hob abrasion measuring device and a measuring method capable of accurately measuring the hob abrasion amount and judging the abrasion type on the premise of not changing the cutter structure of a cutterhead.
In order to solve the technical problems, the invention adopts the following technical scheme:
a shield/TBM hob abrasion measuring device is designed, which comprises a frame body, a fastening component and a movable measuring component,
the frame body comprises a cross beam, a fixed supporting rod and an adjustable supporting rod, wherein the fixed supporting rod and the adjustable supporting rod are respectively arranged at two ends of the cross beam and are vertically connected with the cross beam, and a track is arranged on the adjustable supporting rod in the vertical direction;
the fastening assembly comprises a movable supporting leg and a fastening bolt arranged at the lower end of the movable supporting leg, the upper end of the movable supporting leg is slidably arranged in the track, and a limit bolt for adjusting and fixing the position of the movable supporting leg is further arranged on the track;
the movable measuring assembly comprises a measuring head, a horizontal guide rail arranged on the cross beam, a horizontal sliding block arranged in the horizontal guide rail, a vertical guide rail fixed with the horizontal sliding block, and a vertical sliding block arranged in the vertical guide rail, wherein the upper end of the measuring head is fixedly arranged with the vertical sliding block.
Preferably, the measuring device further comprises a data acquisition assembly, the data acquisition assembly comprises a single chip microcomputer correspondingly connected with the displacement sensor, and further comprises a wireless communication transmitter and a wireless communication receiver, wherein the wireless communication transmitter is correspondingly connected with the single chip microcomputer, and the wireless communication receiver is communicated with the data terminal.
Preferably, the wireless communication transmitter and the wireless communication receiver adopt ZigBee, bluetooth, wiFi or LiFi for wireless communication.
Preferably, the displacement sensor is a pull-wire type grating fiber sensor or an LVDT displacement sensor.
Preferably, the measuring head is a cylindrical rod member with a conical lower end.
Preferably, the upper end of the measuring head is in threaded connection with the vertical sliding block.
Preferably, the distance between the fixed support rod and the adjustable support rod is larger than the width of the step surface of the shield/TBM hob to be detected.
In the technical scheme, the frame body of the measuring device is similar to an inverted concave shape, the fixed supporting rod is used for being matched with the step surface of the hob to be measured, the adjustable supporting rod is matched with the movable supporting leg, the height of the movable supporting leg is adjustable, the height of the movable supporting leg can be adjusted according to specific equipment specifications when the measuring is carried out, the lower end of the movable supporting leg is tangent to the hob baffle ring, and then the fastening bolt is screwed, so that the positioning and clamping between the measuring device and the hob can be realized. The upper end of the measuring head is fixedly arranged together with the vertical sliding block, and the vertical sliding block can move up and down along the vertical guide rail to control the up and down position of the measuring head; the vertical guide rail is fixed with the horizontal slider that sets up in the horizontal guide rail, when the horizontal slider moved along the horizontal guide rail, the horizontal migration that drives the vertical guide rail promptly drove the measuring head, the measuring head can remove with following the profile of hobbing cutter like this, with the different position contact on the hobbing cutter, be provided with displacement sensor at the tip of horizontal guide rail and vertical guide rail, the motion of measuring head can give way displacement sensor and produce the signal of telecommunication to give the singlechip with signal transmission, the singlechip shows, stores the displacement data of data conversion horizontal, vertical direction. The measured data are transmitted to the data terminal by means of wireless transmission.
The invention also relates to a shield/TBM hob abrasion measurement method, which uses the measurement device to measure, and comprises the following steps:
(1) Measurement of reference data for unworn hob of the same type:
a. installing a measuring device: firstly, the lower end of a fixed supporting rod is attached to the step surface of the hob, then the height of a movable supporting leg is adjusted to a proper position, the movable supporting leg is fixed with an adjustable supporting rod by using a limit bolt, and then a fastening bolt is screwed down, so that the hob is clamped between the fixed supporting rod and the movable supporting leg;
b. measurement reference data: respectively adjusting the position of the horizontal sliding block in the horizontal guide rail and the position of the vertical sliding block in the vertical guide rail, so that the measuring head moves on the contour surface of the hob, obtaining the position coordinates of each reference point on the contour surface of the hob through a displacement sensor, transmitting the obtained displacement parameter data to a singlechip, and fitting the measurement data to obtain the standard contour line of the hob of the same type which is not worn;
(2) Measuring hob data to be measured: b, a measuring device is arranged on the hob to be measured according to the method in the step a, a measuring head is moved on the outline surface of the hob to be measured according to the method in the step b, the position coordinates of the hob to be measured at the position corresponding to the reference point are obtained through a displacement sensor, the obtained displacement parameter data are transmitted to a singlechip, and the measuring data are fitted to obtain the outline line of the hob to be measured;
(3) Comparing the contour line of the hob to be measured obtained by fitting in the step (2) with the standard contour line of the unworn hob obtained in the step (1), calculating the maximum value of the hob to be measured in abrasion, and judging the abrasion form according to the contour line;
(4) The measured data are processed by the singlechip and transmitted to the data terminal in a wireless communication mode.
According to the measuring method, the abrasion loss of the section of the hob can be accurately measured, the abrasion type of the hob can be judged on the premise that the cutter structure of the cutterhead is not changed, reasonable hob replacement nodes are calculated, and reasonable planning of the hob is achieved, so that the construction efficiency is improved. Meanwhile, measurement data can be directly transmitted to a shield TBM big data platform in a wireless communication mode, so that further analysis is facilitated.
The invention has the beneficial effects that:
aiming at the defects of the conventional hob abrasion measuring ruler, the designed shield/TBM hob abrasion measuring device has the advantages of high measuring precision, high efficiency, reliable work, strong practicability, portability and the like, can accurately measure the hob abrasion size in shield TBM tunneling, obtain the geometric size change of the hob section, realize the accurate measurement of hob abrasion, and can upload data to a shield TBM big data platform, analyze abrasion rules, plan cutter changing nodes and the like.
The shield/TBM hob abrasion measurement device is structurally adjustable, can be suitable for hob measurement of different specifications, is reasonable in structure, can realize the accuracy, the rapidness and the stability of abrasion measurement, can fit the sectional shape of the same sectional position by carrying out multi-group data measurement, and is comprehensive in measurement information. The measuring device of the invention is based on displacement measurement, judges the abrasion size of the hob by measuring the vertical and horizontal position information of a plurality of points on the hob outline, and can transmit data to a big data analysis platform and the like for data mining. The invention is suitable for the shield and TBM hob, and enables accurate measurement of daily hob abrasion and acquisition of hob section geometric information to be possible.
Drawings
FIG. 1 is a schematic diagram of the structure of the shield/TBM hob abrasion measurement device of the present invention;
reference numerals: 1 is a fixed supporting rod, 2 is an adjustable supporting rod, 3 is a cross beam, 4 is a movable supporting leg, 5 is a fastening bolt, 6 is a limiting bolt, 7 is a measuring head, 8 is a horizontal guide rail, 9 is a horizontal slide block, 10 is a vertical guide rail, 11 is a vertical slide block, 12 and 13 are displacement sensors, 14 is a singlechip, 15 is a wireless communication transmitter, 16 is a wireless communication receiver, 17 is a data terminal, and 18 is a hob.
Detailed Description
The following examples are given to illustrate the invention in detail, but are not intended to limit the scope of the invention in any way. The device elements referred to in the following examples are conventional device elements unless otherwise specified.
Example 1: a shield/TBM hob abrasion measurement device, see FIG. 1, comprises a frame body, a fastening assembly and a movement measurement assembly. The frame body comprises a cross beam 3, a fixed supporting rod 1 and an adjustable supporting rod 2 which are respectively arranged at two ends of the cross beam 3 and are vertically connected with the cross beam 3, and the distance between the fixed supporting rod 1 and the adjustable supporting rod 2 is larger than the width of the step surface of the shield/TBM hob to be detected. The adjustable support rod 2 is provided with a track in the vertical direction, the fastening assembly comprises a movable support leg 4 and a fastening bolt 5 arranged at the lower end of the movable support leg 4, the upper end of the movable support leg 4 is slidably mounted in the track, and a limit bolt 6 for adjusting and fixing the position of the movable support leg is further arranged on the track.
The mobile measurement assembly comprises a measurement head 7, a horizontal guide rail 8 arranged on the cross beam 3, a horizontal slide block 9 arranged in the horizontal guide rail 8, a vertical guide rail 10 fixed with the horizontal slide block 9, and a vertical slide block 11 arranged in the vertical guide rail 10, wherein the upper end of the measurement head 7 is fixedly arranged with the vertical slide block 11. The measuring head 7 is a cylindrical rod piece with a conical lower end, the upper end of the measuring head 7 is in threaded connection with the vertical sliding block 11, and the measuring head 7 can be detached and replaced when damaged. Displacement sensors 12 and 13 are respectively arranged at the fixed end of the horizontal guide rail 8 and the upper end of the vertical guide rail 10. The displacement sensors 12, 13 may be pull-wire type grating fiber optic sensors or LVDT displacement sensors.
When the measuring is carried out, the fixed support rod 1 and the adjustable support rod 2 of the frame body are arranged on two sides of the hob 18, the lower end of the fixed support rod 1 is attached to the step surface of the hob 18, the upper and lower positions of the movable support legs are adjusted, the lower ends of the movable support legs 4 are tangent to the hob baffle ring, and then the fastening bolts 5 are screwed, so that the positioning and clamping between the measuring device and the hob can be realized.
The shield/TBM hob abrasion measurement device further comprises a data acquisition component, wherein the data acquisition component comprises a singlechip 14 correspondingly connected with the displacement sensors 12 and 13, and further comprises a wireless communication transmitter 15 and a wireless communication receiver 16, the wireless communication transmitter 15 is correspondingly connected with the singlechip 14, and the wireless communication receiver 16 is communicated with a data terminal 17. Wireless communication is performed between the wireless communication transmitter 15 and the wireless communication receiver 16 using ZigBee, bluetooth, wiFi, or LiFi.
Example 2: a shield/TBM hob abrasion measurement method using the measurement device in example 1 includes the following steps:
(1) Measurement of reference data for unworn hob of the same type:
a. installing a measuring device; firstly, the lower end of a fixed supporting rod 1 is attached to a hob step surface, then the height of a movable supporting leg 4 is adjusted to a proper position, the movable supporting leg 4 and an adjustable supporting rod 2 are fixed together by using a limit bolt 6, and then a fastening bolt 5 is screwed down, so that a hob 18 is clamped between the fixed supporting rod 1 and the movable supporting leg 4;
b. measurement reference data: the position of the horizontal sliding block in the horizontal guide rail and the position of the vertical sliding block in the vertical guide rail are respectively adjusted, so that the measuring head moves on the contour surface of the hob, the position coordinates of each reference point on the contour surface of the hob are obtained through the displacement sensor, the obtained displacement parameter data are transmitted to the singlechip, and the measurement data are fitted to obtain the standard contour line of the hob of the same type which is not worn.
(2) Measuring hob data to be measured: and c, installing the measuring device on the hob to be measured according to the method in the step a, moving the measuring head on the outline surface of the hob to be measured according to the method in the step b, obtaining the position coordinates of the hob to be measured at the position corresponding to the reference point through the displacement sensor, transmitting the obtained displacement parameter data to the singlechip, and fitting the measurement data to obtain the outline of the hob to be measured.
(3) And (3) comparing the contour line of the hob to be measured obtained by fitting in the step (2) with the standard contour line of the unworn hob obtained in the step (1), calculating the maximum value of the hob to be measured in abrasion, and judging the abrasion form according to the contour line.
(4) The measured data are processed by the singlechip and transmitted to the data terminal in a wireless communication mode.
The shield/TBM hob abrasion measuring device specifically works in the following way; starting a singlechip 14 for data acquisition and data processing, moving the measuring head 7 to the uppermost end of the vertical guide rail 10, moving the vertical guide rail 10 to the leftmost end of the horizontal guide rail, and carrying out horizontal and vertical displacement zero clearing. According to the measuring method in the embodiment 2, the unworn hob of the same type is measured first to obtain the reference point coordinates of the hob. Then, the data of the hob to be measured is measured, the measuring head 7 is moved along the outline surface of the hob ring, the displacement sensors 12 and 13 transmit the moving signals of the measuring head to the singlechip 14, the singlechip 14 receives the signals and converts the signals into displacement data, and when the measuring head 7 is in stable contact with the hob 18, the transverse and vertical coordinates of a certain measuring point on the outline are collected. And acquiring a plurality of groups of data on the hob outline according to a certain distance, and fitting information of the hob outline surface. The maximum abrasion loss and the average abrasion loss of the hob can be calculated through the singlechip 14, and a graph can be generated to display the abrasion condition of the hob. The singlechip 14 is connected with the wireless communication transmitter 15, can transmit out the hob abrasion data detected in real time, is received by the wireless communication receiver 16, can directly transmit into a data terminal, performs data mining analysis through a shield TBM big data platform, and can also be imported into equipment such as handheld tablet personal terminals of field personnel.
The measuring device is convenient to use, high in measuring precision and high in efficiency, compared with a measuring ruler, the measuring device avoids personnel reading errors, can acquire transverse and vertical position information of a worn part, further obtains comprehensive information of a section of a worn hob ring, and can realize two-dimensional section image reproduction of the worn hob through post-processing of data, so that the wear type of the hob can be accurately judged.
While the present invention has been described with reference to the foregoing embodiments, those skilled in the art will understand that various specific parameters in the foregoing embodiments may be changed without departing from the spirit of the invention, and that the present invention is not limited to the specific embodiments, which are common and varied.
Claims (6)
1. The shield/TBM hob abrasion measuring device is characterized by comprising a frame body, a fastening component and a mobile measuring component;
the frame body comprises a cross beam, a fixed supporting rod and an adjustable supporting rod, wherein the fixed supporting rod and the adjustable supporting rod are respectively arranged at two ends of the cross beam and are vertically connected with the cross beam, and a track is arranged on the adjustable supporting rod in the vertical direction;
the fastening assembly comprises a movable supporting leg and a fastening bolt arranged at the lower end of the movable supporting leg, the upper end of the movable supporting leg is slidably arranged in the track, and a limit bolt for adjusting and fixing the position of the movable supporting leg is further arranged on the track;
the movable measurement assembly comprises a measurement head, a horizontal guide rail arranged on the cross beam, a horizontal sliding block arranged in the horizontal guide rail, a vertical guide rail fixed with the horizontal sliding block, and a vertical sliding block arranged in the vertical guide rail, wherein the upper end of the measurement head is fixedly arranged with the vertical sliding block; displacement sensors are respectively arranged at the fixed end of the horizontal guide rail and the upper end of the vertical guide rail;
the data acquisition assembly comprises a single chip microcomputer correspondingly connected with the displacement sensor, a wireless communication transmitter and a wireless communication receiver, wherein the wireless communication transmitter is correspondingly connected with the single chip microcomputer, and the wireless communication receiver is communicated with a data terminal;
the distance between the fixed supporting rod and the adjustable supporting rod is larger than the width of the step surface of the shield/TBM hob to be detected.
2. The shield/TBM hob abrasion measurement device according to claim 1, characterized in that the wireless communication transmitter and the wireless communication receiver use ZigBee, bluetooth, wiFi or LiFi for wireless communication.
3. The shield/TBM hob abrasion measurement device according to claim 1, characterized in that the displacement sensor is a pull-wire grating fiber sensor or an LVDT displacement sensor.
4. The shield/TBM hob abrasion measurement device according to claim 1, characterized in that the measurement head is a cylindrical rod with a conical lower end.
5. The shield/TBM hob abrasion measurement device according to claim 1, characterized in that the upper end of the measurement head is in threaded connection with the vertical slider.
6. A method for measuring wear of a shield/TBM hob, characterized in that the measurement is performed by using the measuring device according to claim 1, comprising the steps of:
(1) Measurement of reference data for unworn hob of the same type:
a. installing a measuring device: firstly, the lower end of a fixed supporting rod is attached to the step surface of the hob, then the height of a movable supporting leg is adjusted to a proper position, the movable supporting leg is fixed with an adjustable supporting rod by using a limit bolt, and then a fastening bolt is screwed down, so that the hob is clamped between the fixed supporting rod and the movable supporting leg;
b. measurement reference data: respectively adjusting the position of the horizontal sliding block in the horizontal guide rail and the position of the vertical sliding block in the vertical guide rail, so that the measuring head moves on the contour surface of the hob, obtaining the position coordinates of each reference point on the contour surface of the hob through a displacement sensor, transmitting the obtained displacement parameter data to a singlechip, and fitting the measurement data to obtain the standard contour line of the hob of the same type which is not worn;
(2) Measuring hob data to be measured: b, a measuring device is arranged on the hob to be measured according to the method in the step a, a measuring head is moved on the outline surface of the hob to be measured according to the method in the step b, the position coordinates of the hob to be measured at the position corresponding to the reference point are obtained through a displacement sensor, the obtained displacement parameter data are transmitted to a singlechip, and the measuring data are fitted to obtain the outline line of the hob to be measured;
(3) Comparing the contour line of the hob to be measured obtained by fitting in the step (2) with the standard contour line of the unworn hob obtained in the step (1), calculating the maximum value of the hob to be measured in abrasion, and judging the abrasion form according to the contour line;
(4) The measured data are processed by the singlechip and transmitted to the data terminal in a wireless communication mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710644196.1A CN107300369B (en) | 2017-07-31 | 2017-07-31 | Shield/TBM hob abrasion measurement device and measurement method |
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| CN201710644196.1A CN107300369B (en) | 2017-07-31 | 2017-07-31 | Shield/TBM hob abrasion measurement device and measurement method |
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| CN107300369A CN107300369A (en) | 2017-10-27 |
| CN107300369B true CN107300369B (en) | 2023-06-20 |
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