CN213950304U - Escalator handrail belt embedded steel wire monitoring system capable of being marked in real time - Google Patents
Escalator handrail belt embedded steel wire monitoring system capable of being marked in real time Download PDFInfo
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- CN213950304U CN213950304U CN202022998399.0U CN202022998399U CN213950304U CN 213950304 U CN213950304 U CN 213950304U CN 202022998399 U CN202022998399 U CN 202022998399U CN 213950304 U CN213950304 U CN 213950304U
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Abstract
The utility model discloses an automatic staircase handrail belt embedded steel wire monitoring system that can mark in real time, including centre gripping formula electromagnetism monitoring devices, motion positioner and data acquisition processing module, centre gripping formula electromagnetism monitoring devices includes centre gripping support and three electromagnetic module, and electromagnetic module includes E type magnetic core, exciting coil and two induction coils, and the magnetic line of force of exciting coil transmission passes through the handrail belt, passes the induction coil of both sides again and forms closed loop to form a detection area and detect the magnetic flux; the data acquisition processing module is respectively connected with the induction coils of the electromagnetic modules so as to detect the defects of the embedded steel wires according to the magnetic flux conditions measured by the electromagnetic modules; the motion positioning device comprises a support rod, a roller and an encoder. The utility model discloses a three electromagnetic module of group detect the magnetic flux change of embedded steel wire, judge and fix a position the defect, for escalator's in time overhaul provide reliable data support, ensure escalator's operation safety.
Description
Technical Field
The utility model belongs to the technical field of the monitoring of automatic escalator, more specifically relates to embedded steel wire monitoring system in automatic escalator handrail area.
Background
The escalator is used as special equipment, is an important task for transporting passengers in railway and urban rail transit, and is of great importance in safety. In order to ensure the safety of passengers and reduce the occurrence probability of accidents, the escalator needs to be regularly detected and maintained, so that the equipment is ensured to be in a good running state. However, the conventional escalator is mainly repaired manually and periodically and repaired with faults, namely, workers perform periodic inspection when no fault occurs and then repair when a fault occurs, and the mode belongs to a post-accident behavior, cannot effectively prevent the occurrence of the fault and is not beneficial to avoiding major accidents; meanwhile, the periodic maintenance may cause excessive maintenance or untimely maintenance, which results in large time, manpower and material resources consumption, poor effect, and high operation difficulty and cost.
The escalator handrail belt moves synchronously with the steps, and passengers can grab the part for increasing standing stability, so that the escalator handrail belt is a key component of the escalator and is of great importance to the running safety of the escalator. For the resistant tensile strength who increases automatic escalator handrail area, its inside embedding has the steel wire, and difficult through the manual inspection when its inside steel wire takes place the defect comes out, consequently can leave over the hidden danger, influences automatic escalator operating condition, threatens passenger's life and property safety. The magnetic field detection is used as a nondestructive detection method and can be applied to the state monitoring of the steel wire embedded in the handrail belt of the escalator. At present, in the patent disclosed about the magnetic field monitoring technology, for example, CN201910811217.3 discloses an electromagnetic sensor and a monitoring method for monitoring the state of a dragging steel belt of an escalator, but the patent discloses a method for detecting the state of an embedded steel belt by an electromagnetic sensor, but the patent discloses an open-loop magnetic flux sensor, the detection precision is low, only one side of the embedded steel belt can be detected, the detection range does not realize the radial full coverage of the embedded steel belt, the radial detection area positioning of the defects of the embedded steel belt cannot be carried out, the patent sensor only has one group of electromagnet modules, the modules cannot normally work once the modules break down, and the reliability of the sensor is low. Patent CN201910170006.6 a clamping type magnetic flux sensor and its application method, discloses a tensile force of the exposed steel cable in the existing structure is detected through the clamping type magnetic flux sensor, this patent can only detect the internal tensile force of a steel cable, and can't locate the position of the detection point, this patent sensor only has a set of electromagnet module, the module once breaks down and then can't work normally, the reliability of the sensor is lower.
In summary, the monitoring of the existing escalator has the following disadvantages: (1) only one object is monitored by one electromagnetic sensor, and the detection capacity and range are small; (2) the open-loop sensor has low measurement precision, and the closed-loop sensor cannot be disassembled for maintenance and is inconvenient; (3) the E-type electromagnetic sensor structure can only detect one side of the embedded steel wire and cannot realize the full coverage of the detected object; (4) the positioning measures for detecting the point defects are insufficient, and the accurate positions of the defects cannot be accurately positioned.
SUMMERY OF THE UTILITY MODEL
To the above defect or the improvement demand of prior art, the utility model provides an but embedded steel wire monitoring system in real-time marking's automatic escalator handrail area, it monitors automatic escalator's embedded steel wire, and the collection state data for failure analysis, be located the prediction, for automatic escalator's timely maintenance provides reliable data support, provides effectual technological means for the operation safety of guarantee automatic escalator, can pinpoint the defect position, online real-time supervision high reliability, detect the precision height, installation and maintenance convenient purpose.
In order to realize the above object, according to the utility model discloses an aspect provides but the embedded steel wire monitoring system in escalator handrail area of real-time marker, a serial communication port, including centre gripping formula electromagnetic monitoring device, motion positioner and data acquisition and processing module, wherein:
the clamping type electromagnetic monitoring device comprises a clamping support and three electromagnetic modules arranged on the clamping support, wherein the clamping support is provided with a notch serving as an embedded steel wire rotating channel;
for each electromagnetic module, each electromagnetic module comprises an E-shaped magnetic core, an exciting coil and two induction coils, the cross section of the E-shaped magnetic core is E-shaped, the E-shaped magnetic core comprises a yoke part and three polar arms extending out from the yoke part towards the direction of the notch, the three polar arms are two side polar arms and a middle polar arm positioned between the two side polar arms, the exciting coil is installed on the middle polar arm, the induction coil is installed on each side polar arm, and magnetic lines of force emitted by the exciting coil pass through the embedded steel wire and then pass through the induction coils on the two sides to form a closed loop, so that a detection area is formed for detecting magnetic flux; the cross section of the handrail belt cut by the plane where the cross section of the E-shaped magnetic core is located is the cross section of the handrail belt;
the three electromagnetic modules are sequentially arranged on three edges of a rectangle, and the electromagnetic modules on two opposite edges of the rectangle are arranged on two sides of the handrail belt in a bilateral symmetry manner;
the data acquisition processing module is respectively connected with the induction coils of the electromagnetic modules;
the motion positioning device comprises a supporting rod, a roller and an encoder, wherein one end of the supporting rod is installed on the clamping support, the roller is installed at the other end of the supporting rod, the roller is pressed on the handrail belt, and the encoder is installed on the roller.
Preferably, the motion positioning device further comprises a tension spring, one end of the tension spring is mounted on the clamping bracket, and the other end of the tension spring is mounted on the support rod, so that the roller is always pressed on the handrail belt;
one end of the supporting rod is hinged to the electromagnetic module mounting frame through a hinge shaft.
Preferably, the data acquisition processing module comprises a field acquisition device and a remote monitoring terminal which can communicate with the field acquisition device, and the field acquisition device is respectively connected with the induction coils of the electromagnetic modules through integrated signal lines.
Preferably, the clamping type electromagnetic monitoring device further comprises a mounting bracket arranged on the clamping bracket, the mounting bracket is arranged on a truss of the escalator, and the clamping type electromagnetic monitoring device is arranged at the edge of the handrail.
Preferably, the clamping type electromagnetic monitoring device is provided in plurality, and they are arranged along a moving direction of the handrail.
Preferably, the E-shaped magnetic core is provided with a mounting boss so as to be mounted on the clamping bracket.
Preferably, the handrail device further comprises a fluorescent marking device arranged on the clamping bracket and used for spraying fluorescent agent to the defect position of the handrail belt.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, can gain following beneficial effect:
1) the utility model provides an automatic staircase handrail belt embedded steel wire monitoring system capable of real-time marking, the monitoring system utilizes magnetic elastic effect, through three electromagnetic modules of a clamping type electromagnetic detection device, the magnetic flux change of the embedded steel wire in the handrail belt is monitored according to three detection areas, the defect of the embedded steel wire in the handrail belt is judged through the change of the magnetic flux, and the detection area in the section of the handrail belt where the defect steel wire is located is positioned, the position of the detection point of the handrail belt along the moving direction of the handrail belt is recorded through a motion positioning device, the position of the defect on the handrail belt can be accurately positioned by combining the positioning of the detection area in the section and the positioning in the moving direction, the two-dimensional accurate positioning is realized, the position of the defect on the handrail belt can be marked in real time, reliable data support is provided for the timely maintenance of the automatic staircase, and the operation safety of the automatic staircase is ensured, the maintenance personnel can conveniently find the fault point.
2) The utility model discloses an embedded steel wire monitoring system in escalator handrail area that can mark in real time, a plurality of centre gripping formula electromagnetic module make up into centre gripping formula sensor device, and the reliability is high, detects the precision height, and the defect location is accurate, can monitor simultaneously embedded steel wire different positions, and detection efficiency is high, and monitoring devices installs and the maintenance is convenient, can realize the effective monitoring of the embedded steel wire state of escalator, has better application prospect and spreading value.
Drawings
Fig. 1 is a schematic diagram of the state monitoring system for the embedded steel wire of the handrail belt of the escalator when the embedded steel wire is monitored;
FIG. 2 is a schematic cross-sectional view of the monitoring system for the state of the steel wire embedded in the handrail belt of the escalator of the present invention;
fig. 3 is an explosion schematic diagram of the monitoring system for the state of the steel wire embedded in the handrail belt of the escalator;
fig. 4 is a schematic diagram of an electromagnetic module according to the present invention;
FIG. 5 is a schematic view of the magnetic lines of force of one of the electromagnetic modules;
FIG. 6 is a schematic view of a clamping bracket of the monitoring system for the state of the steel wire embedded in the handrail of the escalator;
FIG. 7 is a schematic structural view of the middle exercise positioning device of the present invention during detection
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
Referring to fig. 1-7, the monitoring system for the steel wire embedded in the handrail of the escalator capable of being marked in real time comprises a clamping type electromagnetic monitoring device 1, a motion positioning device 2 and a data acquisition and processing module, wherein:
the clamping type electromagnetic monitoring device 1 comprises a clamping bracket 104 and three electromagnetic modules arranged on the clamping bracket 104, wherein the clamping bracket 104 is provided with a notch used as a rotating channel of an embedded steel wire 401; the hand strap 4 has hand strap rubber 402 and inlays the embedded steel wire 401 in hand strap rubber 402, and hand strap 4 can pass the notch, leaves the space between hand strap 4 and the centre gripping formula electromagnetism monitoring devices 1, and both contactless does not influence the motion of hand strap 4, can realize the monitoring of electromagnetism module to the hand strap 4 different faces.
For each electromagnetic module, each electromagnetic module comprises an E-shaped magnetic core, an excitation coil and two induction coils, the cross section of the E-shaped magnetic core is E-shaped, the E-shaped magnetic core comprises a yoke part and three pole arms extending from the yoke part towards the direction of the notch, the three pole arms are respectively two side pole arms and a middle pole arm positioned between the two side pole arms, the excitation coil is installed on the middle pole arm, the induction coil is installed on each side pole arm, and magnetic lines of force 106 emitted by the excitation coil pass through an embedded steel wire 401 and then pass through the induction coils on the two sides to form a closed loop, so that a detection area is formed to detect magnetic flux; the section of the handrail belt 4 cut by the plane where the cross section of the E-shaped magnetic core is located is the cross section of the handrail belt 4; preferably, the E-shaped magnetic core is provided with a mounting boss to facilitate mounting the E-shaped magnetic core on the clamping bracket 104.
Referring to fig. 2 and 3, the three electromagnetic modules are sequentially arranged on three sides of a rectangle, and respectively correspond to three detection areas, the detection range completely covers the whole section of the handrail 4, and the three electromagnetic modules are respectively a first electromagnetic module 101, a second electromagnetic module 102 and a third electromagnetic module 103, which are installed in a slot of a clamping bracket 104 through a fixing buckle 105. The clamping bracket 104 is a U-shaped frame to facilitate the installation of the three electromagnetic modules; the electromagnetic modules ((the second electromagnetic module 102 and the third electromagnetic module 103) on two opposite sides of the rectangle are arranged on both sides of the handrail 4 in bilateral symmetry to respectively detect the embedded steel wire 401 in the arc-shaped part of the handrail 4 on the corresponding side, and the electromagnetic module (the first electromagnetic module 101) on the other side is used for detecting the embedded steel wire 401 in the plane part of the handrail 4;
the data acquisition processing module is respectively connected with the induction coils of the electromagnetic modules so as to detect the defects of the embedded steel wire 401 through the magnetic flux condition measured by the electromagnetic modules; the state of the detection point of the handrail belt 4 is analyzed and judged by comparing the magnetic flux data detected by the electromagnetic modules and the magnetic flux data detected by different electromagnetic modules through magnetic flux detection for analyzing the stress of the embedded steel wire 401 of the handrail belt 4.
The motion positioning device 2 comprises a support rod 202, a roller 203 and an encoder, wherein one end of the support rod 202 is installed on the clamping support 104, the other end of the support rod is installed on the roller 203, the roller 203 is tightly pressed on the hand strap 4 to rotate along with the motion of the hand strap 4, and the encoder is installed on the roller 203 to realize the positioning of the hand strap through the rotation of the roller 203.
Further, the motion positioning device 2 further comprises a tension spring 201, one end of the tension spring 201 is mounted on the clamping bracket 104, and the other end of the tension spring 201 is mounted on the support rod 202, so that the roller 203 is always pressed on the handrail 4;
one end of the supporting rod 202 is hinged to the electromagnetic module mounting frame through a hinge shaft. The tension spring 201 provides pressing force for the motion positioning device 2, so that the roller 203 is not easy to derail when rotating, the encoder is used for recording the rotating number of turns of the roller 203, positioning the position of a detection point of the hand strap 4 along the moving direction of the hand strap 4, and realizing the positioning of defects along the moving direction of the hand strap 4. The detection point of the handrail 4 refers to the position of the handrail 4 detected by the clamping type electromagnetic monitoring device 1, and more specifically, the position of the handrail embedded steel wire 401 detected by the clamping type electromagnetic monitoring device 1.
Further, the data acquisition processing module comprises a field acquisition device and a remote monitoring terminal which can be communicated with the field acquisition device, the field acquisition device is respectively connected with the induction coils of the electromagnetic modules through an integrated signal wire 3, the remote monitoring terminal processes the magnetic flux collected by the clamping type electromagnetic monitoring device 1, grouping according to the detection areas of different electromagnetic modules to obtain a cross section point cloud picture formed by magnetic flux detection data of the cross section of the embedded steel wire 401, the state of the embedded steel wire 401 in the corresponding detection area is judged through the abnormal section point cloud picture analysis, the detection area of the defect in the section is positioned, therefore, the position information of the defect on the cross section of the handrail 4 can be obtained, and the remote monitoring terminal can also obtain the position information of the defect in the moving direction of the embedded steel wire 401 according to the feedback of the motion positioning device 2.
The electromagnetic module of centre gripping formula electromagnetic monitoring device 1 adopts general modularized design, connects standardized integrated signal line 3, integrated signal line 3 is connected with on-the-spot collection system through standardized joint, directly pulls out the signal line joint when electromagnetic module breaks down and carries out whole change, on-the-spot collection system receives the embedded steel wire 401 magnetic field data of all handrail belts of an automatic escalator to carry out primary processing, and wireless network or wired mode transmission such as 5G give remote monitoring terminal again.
Further, the clamping type electromagnetic monitoring device 1 further comprises a mounting bracket 6 arranged on the clamping bracket 104, the mounting bracket 6 is arranged on a truss of a truss machine room 5 of the escalator, and the clamping type electromagnetic monitoring device 1 is arranged on the edge of the hand strap 4.
Further, the clamp-type electromagnetic monitoring device 1 is provided in plural, and they are arranged along the moving direction of the handrail 4. They are separately monitored and then compared in combination with each other, thereby improving the accuracy of monitoring.
The fluorescent marking device 107 is arranged on the clamping support 104 of the clamping type electromagnetic monitoring device 1, and when the defect of the steel wire of the hand strap 4 is detected, the fluorescent marking device 107 can spray fluorescent agent on the hand strap 4 in real time to remind maintenance personnel of the fault position.
According to another aspect of the utility model, but the monitoring method of the embedded steel wire monitoring system in escalator handrail area that real-time marking still is provided, including following step:
(1) three electromagnetic modules of the clamping type electromagnetic monitoring device 1 respectively acquire magnetic fluxes in corresponding detection areas, and the motion positioning device 2 acquires position information of the detection points of the hand strap 4 along the moving direction of the hand strap 4 along with the motion of the hand strap 4;
(2) the magnetic flux and the position information of the detection point of the hand strap 4 along the moving direction of the hand strap 4 are acquired and transmitted to the field acquisition device of the data acquisition processing module through the integrated signal wire 3;
(3) the field acquisition device transmits all received magnetic fluxes of the hand strap 4 of the escalator and position information of detection points of the hand strap 4 along the moving direction of the hand strap 4 to a remote monitoring terminal of the data acquisition and processing module;
(4) the remote monitoring terminal groups the magnetic fluxes acquired by the clamping type electromagnetic monitoring device 1 according to the detection areas of different electromagnetic modules and obtains a cross section point cloud picture formed by the magnetic flux detection data of the cross section of the hand strap 4; a cross-section point cloud chart is formed by magnetic flux detection data of three detection areas at the same part of the main driving wheel 4, and a plurality of cross-section point cloud charts are arranged along the moving direction of the step chain 4;
(5) screening abnormal section point cloud pictures by a remote monitoring terminal; the remote monitoring terminal merges and stores the abnormal section point cloud picture and the corresponding position information along the moving direction of the embedded steel wire 401, does not merge the normal section point cloud picture and the position information along the moving direction of the embedded steel wire 401, separately compresses the abnormal section point cloud picture and the position information, stores the abnormal section point cloud picture and the position information, and automatically deletes the abnormal section point cloud picture after a period of time;
(6) the remote monitoring terminal analyzes the abnormal section point cloud picture, firstly compares the magnetic fluxes collected by two induction coils of the same electromagnetic module, secondly compares the magnetic fluxes detected by different electromagnetic modules, and analyzes and judges the state of the detection point of the handrail belt 4, specifically as follows:
the remote monitoring terminal judges that the detection point of the hand strap 4 has defects by comparison if the magnetic fluxes collected by the two induction coils of the electromagnetic module are inconsistent;
the remote monitoring terminal judges the severity of the defects of the detection point of the handrail belt 4 by comparing the magnetic flux difference degrees detected by different electromagnetic modules;
(7) the remote monitoring terminal generates an analysis result of a detection point of the hand strap 4 and adds detection area information of the part 401 of the hand strap embedded steel wire with problems and position information along the moving direction of the hand strap 4, and positions the position of the defect on the cross section of the hand strap 4 and the position along the moving direction of the hand strap 4.
(8) The remote monitoring terminal carries out early warning on the state of the embedded steel wire 401 obtained by analysis, and the state is divided into a plurality of levels according to the severity of bad states, and different modes are used for carrying out early warning on different levels.
(9) The remote monitoring terminal controls the fluorescent marking device 107 on the clamping bracket 104 to spray fluorescent agent to the defect position of the handrail 4 so as to remind maintenance personnel of the defect position.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. But embedded steel wire monitoring system in real-time mark's automatic escalator handrail area, its characterized in that, including centre gripping formula electromagnetic monitoring device, motion positioner and data acquisition processing module, wherein:
the clamping type electromagnetic monitoring device comprises a clamping support and three electromagnetic modules arranged on the clamping support, wherein the clamping support is provided with a notch serving as an embedded steel wire rotating channel;
for each electromagnetic module, each electromagnetic module comprises an E-shaped magnetic core, an exciting coil and two induction coils, the cross section of the E-shaped magnetic core is E-shaped, the E-shaped magnetic core comprises a yoke part and three polar arms extending out from the yoke part towards the direction of the notch, the three polar arms are two side polar arms and a middle polar arm positioned between the two side polar arms, the exciting coil is installed on the middle polar arm, the induction coil is installed on each side polar arm, and magnetic lines of force emitted by the exciting coil pass through the embedded steel wire and then pass through the induction coils on the two sides to form a closed loop, so that a detection area is formed for detecting magnetic flux; the cross section of the handrail belt cut by the plane where the cross section of the E-shaped magnetic core is located is the cross section of the handrail belt;
the three electromagnetic modules are sequentially arranged on three edges of a rectangle, and the electromagnetic modules on two opposite edges of the rectangle are arranged on two sides of the handrail belt in a bilateral symmetry manner;
the data acquisition processing module is respectively connected with the induction coils of the electromagnetic modules;
the motion positioning device comprises a supporting rod, a roller and an encoder, wherein one end of the supporting rod is installed on the clamping support, the roller is installed at the other end of the supporting rod, the roller is pressed on the handrail belt, and the encoder is installed on the roller.
2. The system for monitoring the embedded steel wire in the handrail of the escalator capable of being marked in real time according to claim 1, wherein the motion positioning device further comprises a tension spring, one end of the tension spring is installed on the clamping bracket, and the other end of the tension spring is installed on the supporting rod, so that the roller is always pressed on the handrail;
one end of the supporting rod is hinged to the electromagnetic module mounting frame through a hinge shaft.
3. The system for monitoring the steel wire embedded in the handrail belt of the escalator capable of being marked in real time according to the claim 1, wherein the data acquisition and processing module comprises an on-site acquisition device and a remote monitoring terminal capable of communicating with the on-site acquisition device, and the on-site acquisition device is respectively connected with the induction coil of each electromagnetic module through an integrated signal wire.
4. The escalator handrail embedded steel wire monitoring system capable of being marked in real time according to claim 1, wherein the clamping type electromagnetic monitoring device further comprises a mounting bracket arranged on the clamping bracket, the mounting bracket is mounted on a truss of the escalator, and the clamping type electromagnetic monitoring device is arranged at the edge of the handrail.
5. The real-time markable escalator handrail belt embedded steel wire monitoring system according to claim 1, characterized in that the clamping type electromagnetic monitoring device is provided in plurality and they are arranged along the moving direction of the handrail belt.
6. The escalator handrail embedded steel wire monitoring system capable of being marked in real time according to claim 1, wherein a mounting boss is arranged on the E-shaped magnetic core so as to mount the E-shaped magnetic core on a clamping bracket.
7. The system for monitoring the embedded steel wire in the handrail of the escalator capable of being marked in real time according to claim 1, further comprising a fluorescent marking device installed on the clamping bracket for spraying fluorescent agent to the defect location of the handrail.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022998399.0U CN213950304U (en) | 2020-12-14 | 2020-12-14 | Escalator handrail belt embedded steel wire monitoring system capable of being marked in real time |
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| CN202022998399.0U CN213950304U (en) | 2020-12-14 | 2020-12-14 | Escalator handrail belt embedded steel wire monitoring system capable of being marked in real time |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112456293A (en) * | 2020-12-14 | 2021-03-09 | 中铁第四勘察设计院集团有限公司 | Monitoring system and method capable of marking embedded steel wires in escalator handrail in real time |
| CN112456293B (en) * | 2020-12-14 | 2024-06-21 | 中铁第四勘察设计院集团有限公司 | Escalator handrail embedded steel wire monitoring system and method capable of being marked in real time |
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2020
- 2020-12-14 CN CN202022998399.0U patent/CN213950304U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112456293A (en) * | 2020-12-14 | 2021-03-09 | 中铁第四勘察设计院集团有限公司 | Monitoring system and method capable of marking embedded steel wires in escalator handrail in real time |
| CN112456293B (en) * | 2020-12-14 | 2024-06-21 | 中铁第四勘察设计院集团有限公司 | Escalator handrail embedded steel wire monitoring system and method capable of being marked in real time |
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