CN114383556B - Detection device and method for rigid contact net - Google Patents
Detection device and method for rigid contact net Download PDFInfo
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- CN114383556B CN114383556B CN202210014499.6A CN202210014499A CN114383556B CN 114383556 B CN114383556 B CN 114383556B CN 202210014499 A CN202210014499 A CN 202210014499A CN 114383556 B CN114383556 B CN 114383556B
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- 238000001514 detection method Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 62
- 239000010959 steel Substances 0.000 claims abstract description 62
- 238000009434 installation Methods 0.000 claims description 20
- 238000006073 displacement reaction Methods 0.000 claims description 15
- 238000012544 monitoring process Methods 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 8
- 238000004062 sedimentation Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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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
- G01B21/02—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 length, width, or thickness
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to a detection device and a detection method for a rigid contact net, which belong to the technical field of rail transit, and comprise channel steel, wherein the lower surface of the channel steel is respectively connected with two anchor bolts in a threaded manner through two mounting screws, and when the device is used, the platform plate and the channel steel are positioned at constant distance positions, and when the channel steel is subjected to the vibration action of a busbar conductive assembly, the mounting bolt positions of the channel steel are loosened, and the distance sensors are shielded when the height of the channel steel is changed.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a detection device and method for a rigid contact net.
Background
The overhauling of the contact net finds that the rigid contact net is in contact with the connecting points of the hanging parts, the impact force of the pantograph causes the integral vibration of the Hu Liupa conductive component and the channel steel and is basically in bolted connection, so that the phenomenon of loosening is continuously generated under continuous impact vibration, the contact part is heated, the oxidation process of the metal conductor is accelerated, the contact resistance is greatly increased, and the heating is more serious. For a long time, the temperature is rapidly increased, and finally the device is burnt to be red and fused, so that equipment is damaged, accidents are caused, and the existing detection device for the rigid contact net bolting state is searched for according to the disclosure number: CN 108106828A, and puts forward that "through measuring the vertical displacement of the suspension channel steel of the rigid contact net, evaluate the loose condition of the connecting component in real time, and utilize the camera shooting unit to shoot the unusual position and send to the dispatch center server, facilitate the maintainer to look over and discuss, have raised efficiency and precision of overhaul, have reduced the work load of overhaul, utilize the method of the invention, can make preliminary judgement to the loose state of the connecting component, have raised the intelligent level of overhaul, provide the reliable assurance for the safe operation of urban rail transit, meanwhile, whole detection device and method, simple in construction, easy to operate, facilitate popularization and application", but adopt this kind of mode can only be single to measure the displacement of the channel steel, unable effective judgement is that the channel steel position connects the loose displacement or the holistic displacement, make it difficult to carry on effective monitoring and accurate auxiliary information acquisition.
Disclosure of Invention
First, the technical problem to be solved
In order to solve the problems in the prior art, the invention provides a detection device and a detection method for a rigid contact net, which solve the problems that the existing detection method for the rigid contact net cannot effectively judge whether the position connection of a channel steel is loose or integral, so that effective monitoring and accurate auxiliary information acquisition are difficult to effectively perform.
(II) technical scheme
In order to achieve the above purpose, the main technical scheme adopted by the invention comprises the following steps: the utility model provides a detection device and method for rigidity contact net, includes the channel-section steel, the lower surface of channel-section steel has two crab-bolts through two mounting screw threaded connection respectively, the busbar conductive component is installed through insulating supporting component to the lower surface of channel-section steel, and same platen is installed through two adjusting screw respectively to the surface of two crab-bolts, the upper surface of platen is provided with two distance sensor.
As a further aspect of the invention: the platen is provided with a sliding hole, clamping pieces are fixedly connected to two sides of a sliding block which is in sliding connection with the inner wall of the sliding hole respectively, and the inner wall of the clamping pieces is in lap joint with the surface of the adjusting screw.
As a further aspect of the invention: and the plurality of distance sensors are in communication connection with the track dispatching center through connector lugs arranged on the lower surface of the bedplate.
As a further aspect of the invention: the location of the deck on the anchor surface is dependent upon the spacing from the channel, the deck being mounted at a fixed spacing from the channel.
As a further aspect of the invention: the distance sensor is arranged at an included angle of 45 degrees with the upper surface of the bedplate, and the anchor bolt is fixedly connected with a reserved hole of a wall body at the top of the tunnel.
As a further aspect of the invention: the detection method of the detection device of the rigid contact net comprises the following steps:
s1, installing a bedplate through an adjusting screw according to the bottom end position of the anchor bolt.
S2, measuring the distance between the bedplate and the channel steel, adjusting the height of the bedplate through an adjusting screw, and limiting the adjusting screw through a clamping piece after keeping the bedplate and the channel steel at a constant distance.
And S3, after the installation is finished, the distance sensor is connected with the track dispatching center in a communication way through the connector lug in sequence, and the distance sensor is started to acquire initial measurement distance data.
S4, in the long-time operation process, if the whole height of the anchor bolt changes, the position of the distance sensor is shifted from the L1 position to the L2 position.
S5, knowing that the fixed elevation angle theta of the distance sensor is 45 degrees, and the difference between the measured distance of the L2 position and the measured distance of the L1 position is beta, the sedimentation distance alpha can be obtained by obtaining one side beta of the elevation angle theta.
S6, monitoring the integral installation position in real time, wherein the bedplate and the channel steel are at constant distance positions, and when the channel steel is vibrated by the busbar conductive assembly, the installation bolt position is loosened, and the distance sensor is shielded when the height of the channel steel is changed.
And S7, when the distance sensor is shielded, the detection distance of the distance sensor is changed greatly, and the track dispatching center judges the displacement distance of the whole anchor bolt connection and the displacement distance of the channel steel according to the method, so that a dispatcher can inspect and maintain the node.
(III) beneficial effects
The beneficial effects of the invention are as follows:
1. according to the detection device and the detection method for the rigid contact net, when the detection device and the detection method are used, initial distance data are firstly obtained and recorded through the distance sensor, and then in the operation process, if the integral height of the anchor bolt changes, the position of the distance sensor is shifted from an L1 position to an L2 position, the fixed elevation angle theta of the distance sensor is known to be 45 degrees, and the difference between the measured distance of the L2 position and the measured distance of the L1 position is known to be beta, so that the sedimentation distance alpha can be obtained by one side beta of the elevation angle theta; when monitoring of the integral installation position is carried out in real time, the bedplate and the channel steel are positioned at a constant distance, when the channel steel is subjected to the vibration action of the busbar conductive assembly, the installation bolt position of the channel steel is loosened, the distance sensor is shielded when the height of the channel steel is changed, the mode can realize detection of the integral connection state, and meanwhile, the bolt connection of the channel steel position is loosened and the bolt is connected with the inner part of the tunnel to realize accurate distinction, data measurement of different nodes can be carried out, when the out-of-range distance data is generated, the track dispatching center alarms, and the channel steel is overhauled for the first time, so that more accurate detection can be realized, and meanwhile, accurate fault information can be effectively acquired.
2. According to the detection device and the detection method for the rigid contact net, the adjusting screws, the bedplate, the sliding holes, the clamping pieces, the limiting blocks and the anchor bolts are arranged, when the detection device is installed, the bedplate is fixed to the proper height of the surface of the anchor bolt under the interaction of the upper adjusting screws and the lower adjusting screws, after the fixation is completed, the clamping pieces limit the upper adjusting screws and the lower adjusting screws through the moving clamping pieces, the limiting blocks limit the upper adjusting screws and the lower adjusting screws, the loosening displacement state of the adjusting screws cannot be indicated through the limiting blocks, displacement caused by the action of vibration in the detection process is guaranteed, the monitoring process is stable and reliable, and the whole installation and arrangement method is simple and reliable.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention in elevation;
FIG. 2 is a schematic view of the anchor and deck of the present invention in use;
FIG. 3 is a schematic view of a three-dimensional cross-sectional structure of a platen according to the present invention;
FIG. 4 is a schematic view of a cross-sectional structure of a platen according to the present invention in left-hand view;
FIG. 5 is a schematic diagram of the monitoring status principle of the present invention;
[ reference numerals description ]
1: channel steel;
2: an anchor bolt;
3: an insulating support assembly;
4: a busbar conductive assembly;
5: installing a bolt;
6: a platen;
7: an adjusting screw;
8: a distance sensor;
9: a slide hole;
10: a clamping piece;
11: a limiting block;
12 connector lug.
Detailed Description
The invention will be better explained by the following detailed description of the embodiments with reference to the drawings.
As shown in fig. 1-5, the present invention provides a technical solution: the utility model provides a detection device and method for rigidity contact net, includes channel-section steel 1, and the lower surface of channel-section steel 1 has two crab-bolts 2 through two mounting screw threaded connection respectively, and busbar conductive assembly 4 is installed through insulating supporting component 3 to the lower surface of channel-section steel 1, and same platen 6 is installed through two adjusting screw 7 respectively to the surface of two crab-bolts 2, and the upper surface of platen 6 is provided with two distance sensor 8.
Specifically, as shown in fig. 1, a clamping piece 10 is arranged on the inner wall of the sliding hole 9, a plurality of distance sensors 8 are in communication connection with a track dispatching center through connector lugs 12 arranged on the lower surface, the position of the bedplate 6 on the surface of the anchor bolt 2 depends on the distance between the bedplate 6 and the channel steel 1, and the bedplate 6 is arranged at a constant distance between the bedplate 6 and the channel steel 1.
Through setting up fastener 10, fastener 10 can keep carrying out good spacing to adjusting screw 7, make its holding state unable activity, be in locking state throughout, keep platen 6 not receive vibrations effect and remove, through setting up connector lug 12, connector lug 12 can keep a plurality of distance sensor 8 can keep the real-time communication with track dispatch center, make it can acquire information and make corresponding processing in the very first time of unusual data appearing, make its whole response more rapid, install through adopting platen 6 and channel-section steel 1 to be in invariable position, make it can be in a less fault-tolerant space to channel-section steel 1, adjust the interval as required, make its channel-section steel 1's fault-tolerant space can adjust according to actual conditions.
Specifically, as shown in fig. 4, a sliding hole 9 is formed in the upper surface of the platen 6, clamping pieces 10 are fixedly connected to two sides of a sliding block in sliding connection with the inner wall of the sliding hole 9 respectively, the inner wall of the clamping pieces 10 is in lap joint with the surface of the adjusting screw 7, the distance sensor 8 is arranged at an included angle of 45 degrees with the upper surface of the platen 6, and the anchor bolt 2 is fixedly connected to a reserved hole of a wall body at the top of a tunnel.
Through setting up slide hole 9, slide hole 9 can keep the steady motion to two fastener 10 when using, make its two fastener 10 can keep connecting under the effect of slider, through setting up the locating part, the locating part can keep the inside packing to slide hole 9, make its fastener 10 receive the effect of locating part unable activity, and then play the spacing to fastener 10, keep adjusting screw 7 unable to appear not hard up, through setting up distance sensor 8, distance sensor 8 is in the listing of initial measurement data of invariable angle, and with this to subsequent real-time data measurement, make it can be convenient for acquire displacement data, the slope mode of distance sensor 8 simultaneously, adopt the monitoring along tunnel direction, avoid partial tunnel to be the distance deviation that arch led to the fact great, make its numerical value of a plurality of sensors can be in certain range value.
Example 1:
s1, installing the bedplate 6 through adjusting screws 7 according to the bottom end positions of the anchor bolts 2.
S2, measuring the distance between the bedplate 6 and the channel steel 1, adjusting the height of the bedplate 6 through the adjusting screw 7, and keeping the bedplate 6 and the channel steel 1 at a constant distance, namely limiting the adjusting screw through the clamping piece 10.
And S3, after the installation is finished, the distance sensor 8 is connected with the track dispatching center in a communication way through the connector lug 12 in sequence, and the distance sensor 8 is started to acquire initial measurement distance data.
S4, in the long-time operation process, if the overall height of the anchor bolt 2 changes, the position of the distance sensor 8 is shifted from the L1 position to the L2 position.
S5, it is known that the fixed elevation angle theta of the distance sensor 8 is 45 degrees, and the difference between the measured distance of the L2 position and the measured distance of the L1 position is beta, so that the sedimentation distance alpha can be obtained by one side beta of the elevation angle theta.
S6, monitoring the overall installation position in real time, wherein the bedplate 6 and the channel steel 1 are positioned at a constant distance, and when the channel steel 1 is subjected to vibration of the busbar conductive assembly 4, the position of the installation bolt 5 is loosened, and the distance sensor 8 is shielded when the height of the installation bolt is changed.
And S7, when the distance sensor 8 is shielded, the detection distance of the distance sensor is changed greatly, and the track dispatching center judges the displacement distance of the connection of the integral anchor bolts 2 and the displacement distance of the channel steel 1 according to the method, so that a dispatcher can inspect and maintain the node.
Example 2:
s1, installing the bedplate 6 through adjusting screws 7 according to the bottom end positions of the anchor bolts 2.
S2, measuring the distance between the bedplate 6 and the channel steel 1, adjusting the height of the bedplate 6 through the adjusting screw 7, and keeping the bedplate 6 and the channel steel 1 at a constant distance, namely limiting the adjusting screw through the clamping piece 10.
And S3, after the installation is finished, the distance sensor 8 is connected with the track dispatching center in a communication way through the connector lug 12 in sequence, and the distance sensor 8 is started to acquire initial measurement distance data.
S4, in the long-time operation process, if the overall height of the anchor bolt 2 changes, the position of the distance sensor 8 is shifted from the L1 position to the L2 position.
S5, it is known that the fixed elevation angle θ of the distance sensor 8 is 90 °, and the distance sensor 8 is kept below the channel steel 1.
S6, monitoring the integral installation position in real time, wherein the bedplate 6 and the channel steel 1 are positioned at a constant distance, and when the channel steel 1 is subjected to vibration action of the busbar conductive assembly 4, the position of the installation bolt 5 is loosened, and the distance sensor 8 realizes data change monitoring when the height is changed.
And S7, when the distance sensor 8 detects that the distance changes, the track dispatching center judges the displacement distance of the channel steel 1, and dispatchers can inspect and maintain the node.
Example 3:
s1, installing the bedplate 6 through adjusting screws 7 according to the bottom end positions of the anchor bolts 2.
S2, measuring the distance between the bedplate 6 and the channel steel 1, adjusting the height of the bedplate 6 through the adjusting screw 7, and keeping the bedplate 6 and the channel steel 1 at a constant distance, namely limiting the adjusting screw through the clamping piece 10.
And S3, after the installation is finished, the distance sensor 8 is connected with the track dispatching center in a communication way through the connector lug 12 in sequence, and the distance sensor 8 is started to acquire initial measurement distance data.
S4, in the long-time operation process, if the overall height of the anchor bolt 2 changes, the position of the distance sensor 8 is shifted from the L1 position to the L2 position.
S5, knowing that the fixed elevation angle theta of the distance sensor 8 is 90 degrees, keeping the distance sensor 8 staggered below the channel steel 1, and enabling the initial measurement distance data detection position of the distance sensor 8 to be the tunnel top.
S6, monitoring the integral installation position in real time, wherein the bedplate 6 and the channel steel 1 are positioned at a constant distance, and when the channel steel 1 is subjected to vibration action of the busbar conductive assembly 4, the position of the installation bolt 5 is loosened, and the distance sensor 8 realizes data change monitoring when the height is changed.
S7, when the distance sensor 8 detects that the distance changes, the track dispatching center judges the displacement distance of the channel steel 1, and a dispatcher can inspect and maintain the node
Through the mode, the embodiment 1 achieves the purposes of monitoring the overall anchoring states of different fixed nodes of the rigid contact net and the fastening states of specific bolts, can realize the rapid positioning of the positions of the nodes, carries out special efficient rescuing maintenance, greatly shortens the time, is suitable for the track traffic field with short detection time of the investigation period, ensures the overall stability of the rigid contact net, and simultaneously can realize the further improvement of the safety of the system of the whole railway network, wherein the embodiment 2 and the embodiment 3 are single vertical distance detection, the detection result is single, and the embodiment 1 belongs to a preferable deployment mode as the best embodiment.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
While the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes may be made without departing from the spirit of the present patent within the knowledge of one of ordinary skill in the art.
Claims (1)
1. The detection method for the detection device of the rigid contact net is characterized by comprising a channel steel (1), wherein the lower surface of the channel steel (1) is respectively connected with two anchor bolts (2) in a threaded manner through two mounting screws, the lower surface of the channel steel (1) is provided with a busbar conductive assembly (4) through an insulating support assembly (3), the surfaces of the two anchor bolts (2) are respectively provided with the same bedplate (6) through two adjusting screws (7), and the upper surface of the bedplate (6) is provided with two distance sensors (8); a sliding hole (9) is formed in the bedplate (6), clamping pieces (10) are fixedly connected to two sides of a sliding block which is connected with the inner wall of the sliding hole (9) in a sliding mode respectively, and the inner wall of each clamping piece (10) is in lap joint with the surface of each adjusting screw (7); a plurality of distance sensors (8) are in communication connection with a track dispatching center through connector lugs (12) arranged on the lower surface of the bedplate (6); the position of the bedplate (6) on the surface of the anchor bolt (2) depends on the distance between the bedplate and the channel steel (1), and the bedplate (6) is installed at a fixed distance from the channel steel (1); the distance sensor (8) is arranged at an included angle of 45 degrees with the upper surface of the bedplate (6), and the anchor bolt (2) is fixedly connected to a preformed hole of a wall body at the top of the tunnel;
the method comprises the following steps:
s1, installing a bedplate (6) through an adjusting screw (7) according to the bottom end position of an anchor bolt (2);
s2, measuring the distance between the bedplate (6) and the channel steel (1), adjusting the height of the bedplate (6) through an adjusting screw (7), and limiting the adjusting screw through a clamping piece (10) when the bedplate (6) and the channel steel (1) are kept at a constant distance;
s3, after the installation is finished, the distance sensor (8) is connected with the track dispatching center in a communication way through the connector lug (12) in sequence, and the distance sensor (8) is started to acquire initial measurement distance data;
s4, in the long-time operation process, if the overall height of the anchor bolt (2) changes, the position of the distance sensor (8) is shifted from the L1 position to the L2 position;
s5, knowing that a fixed elevation angle theta of the distance sensor (8) is 45 degrees, and the difference between the measured distance of the L2 position and the measured distance of the L1 position is beta, so that one side beta of the elevation angle theta can be obtained to obtain a sedimentation distance alpha;
s6, monitoring the integral installation position in real time, wherein the bedplate (6) and the channel steel (1) are positioned at a constant distance, and when the channel steel (1) is vibrated by the busbar conductive assembly (4), the position of the installation bolt (5) is loosened, and the distance sensor (8) is shielded when the height of the installation bolt is changed;
and S7, when the distance sensor (8) is shielded, the detection distance of the distance sensor is changed greatly, and the track dispatching center judges the displacement distance of the connection of the integral anchor bolt (2) and the displacement distance of the channel steel (1) according to the method, so that a dispatcher can inspect and maintain the node.
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| CN202210014499.6A CN114383556B (en) | 2022-01-06 | 2022-01-06 | Detection device and method for rigid contact net |
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| CN208164803U (en) * | 2018-03-26 | 2018-11-30 | 中铁二十二局集团有限公司 | Electric railway rigid contact net installation adjustment device |
| CN208469609U (en) * | 2018-09-27 | 2019-02-05 | 中铁第五勘察设计院集团有限公司 | A kind of contact network termination ending fitting |
| CN209351273U (en) * | 2019-01-16 | 2019-09-06 | 衡水宝力铁路电气化器材有限公司 | Overhead contact line connects pedestal |
| CN209386966U (en) * | 2019-03-15 | 2019-09-13 | 陈富 | A kind of rigid contact net positioning point detection device based on channel steel identification |
| JP2021079812A (en) * | 2019-11-19 | 2021-05-27 | 大成建設株式会社 | Rail inspection apparatus |
| CN214564774U (en) * | 2021-05-17 | 2021-11-02 | 王禄青 | Flexible sectional insulator adjusting clamp |
| CN113447255A (en) * | 2021-06-29 | 2021-09-28 | 同济大学 | Bolt node looseness detection method and system based on unmanned aerial vehicle image space positioning |
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