CN114383556A - Detection device and method for rigid contact net - Google Patents
Detection device and method for rigid contact net Download PDFInfo
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- CN114383556A CN114383556A CN202210014499.6A CN202210014499A CN114383556A CN 114383556 A CN114383556 A CN 114383556A CN 202210014499 A CN202210014499 A CN 202210014499A CN 114383556 A CN114383556 A CN 114383556A
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- 238000001514 detection method Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 63
- 239000010959 steel Substances 0.000 claims abstract description 63
- 238000009434 installation Methods 0.000 claims description 15
- 238000005259 measurement Methods 0.000 claims description 14
- 238000006073 displacement reaction Methods 0.000 claims description 13
- 238000012544 monitoring process Methods 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 8
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- 230000002159 abnormal effect Effects 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
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- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
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- 238000011835 investigation Methods 0.000 description 1
- 230000007774 longterm Effects 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
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- 239000000725 suspension Substances 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
- 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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Abstract
The invention relates to a detection device and a detection method for a rigid contact net, belonging to the technical field of rail transit, comprising a channel steel, wherein the lower surface of the channel steel is respectively connected with two anchor bolts through two mounting screws in a threaded manner, a distance sensor, a bedplate, the channel steel and the anchor bolts are arranged, when the detection device is used, the bedplate and the channel steel are at a constant distance position, when the channel steel is vibrated by a busbar conductive assembly, the position of a mounting bolt is loosened, the distance sensor is shielded when the height of the channel steel is changed, the mode can realize the detection of the integral connection state, can judge the bolt connection looseness of the channel steel position and the looseness of the connection between the anchor bolts and the inside of a tunnel to realize accurate distinction, can measure according to data of different nodes, alarm is given by a rail dispatching center when the distance data exceeds a range, and the maintenance can be carried out at the first time, the mode can realize accurate detection and can effectively acquire accurate fault information.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a detection device and a detection method for a rigid contact net.
Background
The maintenance discovery to the contact net, rigid contact net is because the contact hangs the tie point of spare part more, and the impact force of pantograph causes the holistic vibration of genre conducting assembly and channel-section steel, is bolted connection basically moreover for continuous production pine under continuous impact vibration takes off the phenomenon, makes the contact site generate heat, and metal conductor's oxidation process accelerates, thereby greatly increased contact resistance, it is more serious to make it generate heat. In the past, the temperature is sharply increased, and finally the equipment is burned and melted to damage the equipment, which causes an accident, and a detection device for searching the bolt connection state of the conventional rigid contact net is disclosed as follows: CN 108106828A, and proposes that' the loosening condition of a connecting part is evaluated in real time by measuring the vertical displacement of a suspension channel steel of a rigid contact net, the abnormal position is shot and sent to the dispatching center server by the camera unit, so that the overhaul personnel can conveniently check and discuss, the overhaul efficiency and precision are improved, the overhaul workload is reduced, the loosening state of the connecting part can be preliminarily judged by the method, the overhaul intelligent level is improved, the reliable guarantee is provided for the safe operation of the urban rail transit, meanwhile, the whole detection device and method are simple in structure, convenient to operate and convenient to popularize and apply, and the displacement of the channel steel can be measured only in a single mode, so that the position connection of the channel steel is not loosened or integral, and effective monitoring and accurate auxiliary information acquisition are difficult to achieve.
Disclosure of Invention
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 network, and solves the problem that the conventional detection method for the rigid contact network cannot effectively judge whether the position of channel steel is loosely connected or integrally connected, so that effective monitoring and accurate auxiliary information acquisition are difficult to carry out.
(II) technical scheme
In order to achieve the purpose, the invention adopts the main technical scheme that: the detection device and method for the rigid contact net comprise a channel steel, wherein the lower surface of the channel steel is respectively in threaded connection with two anchor bolts through two mounting screws, a bus bar conducting assembly is mounted on the lower surface of the channel steel through an insulating support assembly, the surfaces of the two anchor bolts are respectively provided with the same bedplate through two adjusting screws, and the upper surface of the bedplate is provided with two distance sensors.
As a further scheme of the invention: the table plate is provided with a sliding hole, two sides of a sliding block which is connected with the inner wall of the sliding hole in a sliding mode are fixedly connected with clamping pieces respectively, and the inner wall of each clamping piece is in lap joint with the surface of each adjusting screw.
As a further scheme of the invention: the 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 scheme of the invention: the position of the bedplate on the surface of the anchor bolt depends on the distance between the bedplate and the channel steel, and the bedplate and the channel steel are installed at a fixed distance.
As a further scheme of the invention: the distance sensor and the upper surface of the bedplate form an included angle of 45 degrees, and the anchor bolt is fixedly connected with a preformed hole in the wall body at the top of the tunnel.
As a further scheme of the invention: a detection method of a detection device of a rigid contact net comprises the following steps:
and S1, mounting the bedplate through the 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 adjusting screws, keeping the bedplate and the channel steel at a constant distance, and limiting the adjusting bolts through clamping pieces.
And S3, after the installation is finished, sequentially connecting the distance sensor with the track dispatching center through the connector lug in a communication manner, and starting the distance sensor to acquire initial measurement distance data.
And S4, if the overall height of the anchor bolt changes in the long-term operation process, 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 measurement distance of the L2 position and the measurement distance of the L1 position is beta, one side beta of the elevation angle theta can be obtained, and the settlement distance alpha can be obtained.
S6, when the overall installation position is monitored in real time, the bedplate and the channel steel are located at a constant distance position, the channel steel is loosened under the vibration effect of the bus bar conductive assembly, and the distance sensor is shielded during height change.
And S7, when the distance sensor is shielded, the detection distance of the distance sensor is greatly changed, the track dispatching center judges the displacement distance of the integral anchor bolt connection and the displacement distance of the channel steel according to the method, and dispatching personnel can inspect and maintain the node.
(III) advantageous effects
The invention has the beneficial effects that:
1. according to the detection device and method for the rigid contact net, through arrangement of the distance sensor, the bedplate, the channel steel and the anchor bolts, when the detection device is used, initial distance data are obtained and recorded through the distance sensor, and then in the operation process, if the overall height of the anchor bolts changes, the position of the distance sensor is shifted to the position L2 from L1, so that the fixed elevation angle theta of the distance sensor is 45 degrees, the difference between the measurement distance of the position L2 and the measurement distance of the position L1 is beta, and therefore the settlement distance alpha can be obtained by obtaining one side beta of the elevation angle theta; when the monitoring of carrying out whole mounted position in real time, its platen is in invariable distance position with the channel-section steel, receive busbar conductive component's vibration effect when the channel-section steel, it is not hard up to make its construction bolt position appear, it shelters from distance sensor realization during its altitude variation, this kind of mode can realize that bolted connection that can judge the channel-section steel position when the overall connection state detects is not hard up and realizes accurate differentiation with the not hard up realization of crab-bolt and tunnel internal connection, can be according to the data measurement of different nodes, the track dispatch center reports an emergency and asks for help or increased vigilance when appearing out of range distance data, and the very first time overhaul can, this kind of mode can realize comparatively accurate detection simultaneously, can effectually acquire accurate fault information.
2. According to the detection device and 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 appropriate height of the surface of the anchor bolt under the interaction of the upper adjusting screw and the lower adjusting screw, after the fixation is finished, the clamping pieces are moved to limit the upper adjusting screw and the lower adjusting screw, the limiting blocks limit the upper adjusting screw and the lower adjusting screw, the condition that the adjusting screws cannot be in a loosening displacement state is indicated, the situation that the adjusting screws cannot be in a displacement under the action of vibration in the detection process is guaranteed, the monitoring process is more stable and reliable, and the whole installation and arrangement method is simple and reliable.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic view of the anchor bolt and the bedplate of the present invention in a track state;
FIG. 3 is a schematic cross-sectional view of a three-dimensional structure of a pallet of the present invention;
FIG. 4 is a schematic left-side sectional view of the platen according to the present invention;
FIG. 5 is a schematic view of the monitoring state principle of the present invention;
[ description of reference ]
1: channel steel;
2: an anchor bolt;
3: an insulating support assembly;
4: a bus bar conductive member;
5: installing a bolt;
6: a platen;
7: an adjusting screw;
8: a distance sensor;
9: a slide hole;
10: a fastener;
11: a limiting block;
12 terminal block.
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.
As shown in fig. 1 to 5, the present invention provides a technical solution: the detection device and the detection method for the rigid contact network comprise a channel steel 1, wherein the lower surface of the channel steel 1 is respectively in threaded connection with two anchor bolts 2 through two mounting screws, a busbar conductive component 4 is mounted on the lower surface of the channel steel 1 through an insulating support component 3, the surfaces of the two anchor bolts 2 are respectively provided with a same bedplate 6 through two adjusting screws 7, and the upper surface of the bedplate 6 is provided with two distance sensors 8.
Specifically, as shown in fig. 1, a clamping piece 10 is arranged on the inner wall of the sliding hole 9, the distance sensors 8 are in communication connection with a track dispatching center through connector lugs 12 arranged on the lower surface of the distance sensors, and the position of the bedplate 6 on the surface of the anchor bolt 2 depends on the distance from the channel steel 1 and is installed at a constant distance from 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 all the time, it removes not receiving the vibrations effect to keep platen 6, through setting up connector lug 12, connector lug 12 can keep a plurality of distance sensor 8 can keep with the real-time communication of track dispatch center, make it can obtain information and make corresponding processing the very first time abnormal data appearing, it is more rapid to make its whole response, 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 according to needs, make its channel-section steel 1's fault-tolerant space can adjust according to the circumstances of reality.
Specifically, as shown in fig. 4, a slide hole 9 is formed in the upper surface of the bedplate 6, two sides of a slide block which is slidably connected with the inner wall of the slide hole 9 are respectively and fixedly connected with a clamping piece 10, the inner wall of the clamping piece 10 is in lap joint with the surface of the adjusting screw 7, the distance sensor 8 and the upper surface of the bedplate 6 are arranged at an included angle of 45 degrees, and the anchor bolt 2 is fixedly connected with a reserved hole in a wall body at the top of the tunnel.
Through setting up slide opening 9, slide opening 9 can keep the steady motion to two fastener 10 when using, make two fastener 10 of it can keep connecting under the effect of slider, through setting up the locating part, the locating part can keep the inside packing of slide opening 9, make its fastener 10 receive the effect of locating part unable activity, and then play the spacing to fastener 10, it is unable not hard up to appear to keep adjusting screw 7, through setting up distance sensor 8, distance sensor 8 is in the invariable angle and carries out initial measured data's receipts and records, and with this to subsequent real-time data measurement, make it can be convenient for acquire displacement data, distance sensor 8's slope mode simultaneously, adopt the monitoring along with the tunnel direction, it is great to avoid partial tunnel to be the distance deviation that the arch caused, make the numerical value of its a plurality of sensors can be in certain range value.
Example 1:
s1, the bedplate 6 is installed by adjusting the screw 7 according to the position of the bottom end of the 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, keeping the bedplate 6 and the channel steel 1 at a constant distance, and limiting the adjusting bolt through a clamping piece 10.
And S3, after the installation is finished, sequentially connecting the distance sensor 8 with the track dispatching center through the connector 12 in a communication way, and starting the distance sensor 8 to acquire initial measurement distance data.
S4, if the overall height of the anchor bolt 2 changes during a long time operation, the position of the distance sensor 8 is shifted from L1 to L2.
S5, knowing 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, one side beta of the elevation angle theta can be obtained, and the settlement distance alpha can be obtained.
S6, when the monitoring of the whole installation position is carried out in real time, the bedplate 6 and the channel steel 1 are located at a constant distance position, the position of the installation bolt 5 is loosened under the vibration action of the bus bar conductive component 4 when the channel steel 1 is subjected to vibration, and the distance sensor 8 is shielded during the height change.
And S7, when the distance sensor 8 is shielded, the detection distance of the distance sensor is greatly changed, the track dispatching center judges the displacement distance of the connection of the whole anchor bolt 2 and the displacement distance of the channel steel 1 according to the method, and dispatching personnel can inspect and maintain the node.
Example 2:
s1, the bedplate 6 is installed by adjusting the screw 7 according to the position of the bottom end of the 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, keeping the bedplate 6 and the channel steel 1 at a constant distance, and limiting the adjusting bolt through a clamping piece 10.
And S3, after the installation is finished, sequentially connecting the distance sensor 8 with the track dispatching center through the connector 12 in a communication way, and starting the distance sensor 8 to acquire initial measurement distance data.
S4, if the overall height of the anchor bolt 2 changes during a long time operation, the position of the distance sensor 8 is shifted from L1 to L2.
S5, it is found 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, when the overall installation position is monitored in real time, the bedplate 6 and the channel steel 1 are located at a constant distance position, the position of the installation bolt 5 is loosened under the vibration action of the bus bar conductive component 4 of the channel steel 1, and the distance sensor 8 realizes data change monitoring during height change.
And S7, when the detection distance of the distance sensor 8 changes, the track dispatching center judges the displacement distance of the channel steel 1, and dispatching personnel can inspect and maintain the node.
Example 3:
s1, the bedplate 6 is installed by adjusting the screw 7 according to the position of the bottom end of the 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, keeping the bedplate 6 and the channel steel 1 at a constant distance, and limiting the adjusting bolt through a clamping piece 10.
And S3, after the installation is finished, sequentially connecting the distance sensor 8 with the track dispatching center through the connector 12 in a communication way, and starting the distance sensor 8 to acquire initial measurement distance data.
S4, if the overall height of the anchor bolt 2 changes during a long time operation, the position of the distance sensor 8 is shifted from L1 to L2.
And S5, knowing that the fixed elevation angle theta of the distance sensor 8 is 90 degrees, and keeping the distance sensor 8 staggered below the channel steel 1, so that the initial measurement distance data detection position of the distance sensor 8 is the top of the tunnel.
S6, when the overall installation position is monitored in real time, the bedplate 6 and the channel steel 1 are located at a constant distance position, the position of the installation bolt 5 is loosened under the vibration action of the bus bar conductive component 4 of the channel steel 1, and the distance sensor 8 realizes data change monitoring during height change.
S7, when the detection distance of the distance sensor 8 changes, the track dispatching center judges the displacement distance of the channel steel 1, and a dispatcher can inspect and maintain the node
In this way, embodiment 1 reaches the whole anchor state of the different fixed nodes of monitoring rigid contact net, and the fastening state of specific bolt, can realize quick location node position, carry out the salvage nature of special efficient and overhaul, reduce the time greatly, be applicable to the nervous track traffic field of investigation cycle check-up time, guarantee rigid contact net's overall stability is simultaneously, can realize the further promotion of security to the system of whole railway network, embodiment 2 and embodiment 3 are single vertical distance detection, the testing result is comparatively single, embodiment 1 belongs to preferred deployment mode as best embodiment.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected 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 through specific situations.
Although 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 can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (6)
1. The utility model provides a detection apparatus for be used for rigid contact net, includes channel-section steel (1), its characterized in that: the lower surface of channel-section steel (1) has two crab-bolts (2) through two mounting screw threaded connection respectively, busbar conductive component (4) are installed through insulating supporting component (3) to the lower surface of channel-section steel (1), and same platen (6) are installed through two adjusting screw (7) respectively to the surface of two crab-bolts (2), the upper surface of platen (6) is provided with two distance sensor (8).
2. The detection device for the rigid catenary of claim 1, wherein: the novel table is characterized in that a sliding hole (9) is formed in the table plate (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, and the inner wall of each clamping piece (10) is in lap joint with the surface of each adjusting screw (7).
3. The detection device for the rigid catenary as claimed in claim 2, wherein: the distance sensors (8) are in communication connection with the track dispatching center through connector lugs (12) arranged on the lower surface of the bedplate (6).
4. The detection device for the rigid catenary of claim 1, wherein: 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) and the channel steel (1) are installed at a fixed distance.
5. The detection device for the rigid catenary of claim 1, wherein: the distance sensor (8) and the upper surface of the bedplate (6) are arranged at an included angle of 45 degrees, and the anchor bolt (2) is fixedly connected with a preformed hole in the wall body at the top of the tunnel.
6. The detection method for the detection device for the rigid contact line of any one of claims 1 to 5 is characterized by comprising the following steps:
s1, installing the bedplate (6) through the adjusting screw (7) according to the bottom end position of the 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), keeping the bedplate (6) and the channel steel (1) at a constant distance, and limiting an adjusting bolt through a clamping piece (10);
and S3, after the installation is finished, sequentially connecting the distance sensor (8) with the track dispatching center through the connector lug (12) to complete communication, and starting the distance sensor (8) to acquire initial measurement distance data.
S4, in the process of long-time operation, if the overall height of the anchor bolt (2) changes, the position of the distance sensor (8) is shifted from L1 to L2;
s5, knowing that the fixed elevation angle theta of the distance sensor (8) is 45 degrees, and the difference between the measurement distance of the L2 position and the measurement distance of the L1 position is beta, obtaining one side beta of the elevation angle theta and obtaining the settlement distance alpha;
s6, monitoring the overall installation position in real time, and meanwhile, enabling the bedplate (6) and the channel steel (1) to be at a constant distance position, when the channel steel (1) is vibrated by the bus bar conductive component (4), the installation bolt (5) is loosened, and the distance sensor (8) is shielded when the height of the channel steel is changed;
and S7, when the distance sensor (8) is shielded, the detection distance of the distance sensor changes greatly, the track dispatching center judges the displacement distance of the connection of the whole anchor bolt (2) and the displacement distance of the channel steel (1) according to the method, and dispatching personnel can inspect and maintain the node.
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| CN108333472A (en) * | 2018-01-24 | 2018-07-27 | 江阴众和电力仪表有限公司 | Contact net holder loosens intelligent monitoring device, on-line monitoring system and its method |
| CN207851206U (en) * | 2018-01-25 | 2018-09-11 | 江阴众和电力仪表有限公司 | The on-line monitoring test platform that contact net holder loosens |
| 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 |
| CN114212007A (en) * | 2022-01-06 | 2022-03-22 | 杭州申昊科技股份有限公司 | Rigid contact net anchor section joint structure |
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| CN114383556B (en) | 2023-08-04 |
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Denomination of invention: A detection device and method for rigid contact network Granted publication date: 20230804 Pledgee: Guotou Taikang Trust Co.,Ltd. Pledgor: Hangzhou Shenhao Technology Co.,Ltd. Registration number: Y2024980011357 |
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