CN213834114U - Real-time online encircling type elevator steel wire rope distribution quadrant monitoring system - Google Patents
Real-time online encircling type elevator steel wire rope distribution quadrant monitoring system Download PDFInfo
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- CN213834114U CN213834114U CN202022984993.4U CN202022984993U CN213834114U CN 213834114 U CN213834114 U CN 213834114U CN 202022984993 U CN202022984993 U CN 202022984993U CN 213834114 U CN213834114 U CN 213834114U
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- 230000007547 defect Effects 0.000 abstract description 21
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Abstract
The utility model discloses a real-time online surround type elevator wire rope distribution quadrant monitoring system, including surround type electromagnetic monitoring device, motion positioning device and data acquisition processing module, surround type electromagnetic monitoring device includes electromagnetic module mounting bracket and four electromagnetic module; the four electromagnetic modules are respectively a one-quadrant electromagnetic module, a two-quadrant electromagnetic module, a three-quadrant electromagnetic module and a four-quadrant electromagnetic module; each electromagnetic module comprises an E-shaped magnetic core, an exciting coil and two induction coils, wherein the E-shaped magnetic core comprises an arc yoke and three polar arms, the exciting coil is arranged on the middle polar arm, and the induction coil is arranged on each side polar arm; the data acquisition processing module is respectively connected with the induction coils of the electromagnetic modules; the motion positioning device comprises a support rod, a roller and an encoder. The utility model discloses obtain the magnetic flux change according to four quadrant monitoring and analyze wire rope's state, for wire rope's elasticity adjustment and defect overhaul provide the guidance, guarantee the operation safety of perpendicular elevator.
Description
Technical Field
The utility model belongs to the technical field of elevator safety monitoring, more specifically relates to real-time online formula elevator wire rope distribution quadrant monitoring system that encircles.
Background
The vertical elevator as special equipment is used for taking an important task of transporting passengers in railway and urban rail transit, and the safety of the vertical elevator is very important. In order to ensure the safety of passengers and reduce the occurrence probability of accidents, the vertical elevator needs to be regularly detected and maintained, so that the equipment is ensured to be in a good running state. However, the maintenance of the vertical elevator at present mainly adopts manual periodic maintenance and fault maintenance, namely, a worker periodically checks when no fault occurs and then maintains 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 the occurrence of 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 elevator steel wire rope is a component for connecting the counterweight and the elevator car and transferring power for the lifting of the elevator, is a key component of the elevator and is of great importance to the running safety of the elevator. The elevator steel wire rope is a spiral steel wire bundle formed by twisting hundreds of stranded steel wires according to a certain rule, and due to the fact that the structure of the elevator steel wire rope is complex, the number of formed steel wires is large, and when the defects of the steel wires of the inner part of the elevator steel wire rope occur, the steel wires are difficult to check out through manpower, hidden dangers can be left, the operation state of the elevator is influenced, and the life and property safety of passengers is threatened. Magnetic field detection is used as a nondestructive detection method and can be applied to the state monitoring of the elevator steel wire rope. At present, in the disclosed patent, regarding the aspect of elevator steel wire rope monitoring technology, for example, CN201910811217.3 discloses an electromagnetic sensor and a monitoring method for monitoring the state of an elevator traction steel belt, but the patent discloses a method for detecting the state of a steel belt through the electromagnetic sensor, the open-loop magnetic flux sensor has low detection precision, only one side of the steel belt can be detected, the detection range does not realize circumferential full coverage of the steel belt, circumferential quadrant positioning cannot be performed on the steel belt defect, only one group of electromagnet modules is arranged in the patent sensor, the modules cannot normally work once a fault occurs, 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 elevator steel wire rope in the prior art 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 electromagnetic sensor structure can only detect one side of the steel wire rope, and cannot realize full coverage of the detected object; (4) the positioning measures for detecting the defects of the points are insufficient, and the accurate positions of the defects cannot be accurately positioned; (5) the abnormal jumping of the steel wire rope cannot be monitored.
SUMMERY OF THE UTILITY MODEL
To the above defect of prior art or improve the demand, the utility model provides a real-time online formula elevator wire rope that encircles distribution quadrant monitoring system, its wire rope to perpendicular elevator monitors, gathers wire rope's sectional magnetic flux data for failure analysis, be located the prediction, for the timely maintenance of perpendicular elevator provides reliable support, provides effectual technological means for the operation safety of guarantee perpendicular elevator.
In order to achieve the above object, according to the utility model discloses an aspect provides real-time online formula elevator wire rope that encircles distribution quadrant monitoring system, a serial communication port, including encircling formula electromagnetic monitoring device, motion positioner and data acquisition and processing module, wherein:
the encircling type electromagnetic monitoring device comprises an electromagnetic module mounting frame and four electromagnetic modules mounted on the electromagnetic module mounting frame, wherein the electromagnetic module mounting frame is provided with a through hole used as a steel wire rope moving channel;
the four electromagnetic modules are respectively a first-quadrant electromagnetic module, a second-quadrant electromagnetic module, a third-quadrant electromagnetic module and a fourth-quadrant electromagnetic module which are respectively arranged in a first quadrant to a fourth quadrant of a Cartesian coordinate system, and the four electromagnetic modules are arranged around the steel wire rope;
for each electromagnetic module, each electromagnetic module comprises an E-shaped magnetic core, an excitation coil and two induction coils, wherein the E-shaped magnetic core comprises an arc-shaped yoke part and three polar arms extending out of the inner arc surface of the yoke part, so that the section of the E-shaped magnetic core, which is perpendicular to the central line of the inner arc surface of the yoke part, is in an arc shape, the three polar arms are two side polar arms and a middle polar arm positioned between the two side polar arms, the excitation coil is installed on the middle polar arm, and the induction coil is installed on each side polar arm;
the four electromagnetic modules form a closed loop in the circumferential direction of the steel wire rope, and the closed loop covers the circumferential surface of the steel wire rope in a 360-degree mode;
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 electromagnetic module mounting frame, the other end of the supporting rod is installed on the roller, the roller is pressed on the steel wire rope, 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 electromagnetic module mounting frame, and the other end of the tension spring is mounted on the support rod, so that the roller is always pressed on the steel wire rope;
one end of the supporting rod is hinged to the electromagnetic module mounting frame through a hinge shaft, and the center line of the hinge shaft is perpendicular to the center line of the inner arc surface of the yoke.
Preferably, the electromagnetic module mounting bracket includes that first encircles support and the second encircles the support, first encircles shelf location a quadrant electromagnetic module and two-quadrant electromagnetic module, the shelf location is embraced to the second three-quadrant electromagnetic module and four-quadrant electromagnetic module, first one end of embracing support and the second encircles the support is through embracing the pivot articulated together and the other end is connected through embracing the padlock, wherein, encircle the central line of pivot with the central line vertical parallel of the intrados of yoke.
Preferably, the electromagnetic module mounting rack comprises a plurality of sets of rack units;
for each group of support units, each support unit comprises a first surrounding support and a second surrounding support, the first surrounding support and the second surrounding support surround a through hole serving as a steel wire rope moving channel together, so that the electromagnetic module mounting frame can be penetrated by a plurality of steel wire ropes, the first surrounding support is provided with the first quadrant electromagnetic module and the second quadrant electromagnetic module, and the second surrounding support is provided with the third quadrant electromagnetic module and the fourth quadrant electromagnetic module;
the four electromagnetic modules on each group of bracket units are respectively arranged in four quadrants of a Cartesian coordinate system at respective positions;
all the first encircling brackets are fixedly connected together, and all the second encircling brackets are also fixedly connected together, so that the first encircling brackets and the second brackets are combined together to form the interlinking encircling bracket; wherein one end the first surrounding support and the second surrounding support are hinged together through a surrounding rotating shaft, the other end of the first surrounding support and the second surrounding support are connected through a surrounding buckle lock, and the central line of the surrounding rotating shaft is perpendicular to and parallel to the central line of the inner arc surface of the yoke.
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 each electromagnetic module through an integrated signal line.
Preferably, the encircling electromagnetic monitoring device is provided with a fixed support, the fixed support is arranged on a machine placing beam, a steel structure upright post or a concrete well wall of the elevator, and the encircling electromagnetic monitoring device is arranged in a steel wire rope area between the lift car and the motor.
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 a real-time online formula stranded elevator wire rope that encircles distribution quadrant monitoring system, this system utilizes the magnetic bullet effect to monitor the magnetic flux change of all strand steel wires in the wire rope according to the whole circumference of four quadrants through four groups of electromagnetic module in the formula of encircling electromagnetic detection device, through the change of magnetic flux, the atress of analysis steel wire, through the same quadrant magnetic flux contrast, and the magnetic flux contrast of different quadrants, the state of the check point of analysis judgement wire rope is judged, thereby can judge the defect of steel wire and the runout of wire rope, and can fix a position out the quadrant region in the wire rope section that the steel wire that falls into defect belongs to, record the position information of check point along the wire rope axial through the motion positioner, can pinpoint the position of defect on wire rope by combining quadrant location and motion location, realize circumference and axial two-dimensional pinpoint on the wire rope, reliable data support is provided for the timely maintenance of the vertical elevator, and the operation safety of the vertical elevator is guaranteed; meanwhile, the jumping quantity and the jumping direction of the steel wire rope are analyzed according to the magnetic flux change obtained by monitoring the four quadrants, so that the tensioning degree and the elongation condition of the steel wire rope are judged, and guidance is provided for the tightness adjustment of the steel wire rope.
2) The utility model discloses an encircling formula electromagnetic detection device's four electromagnetic module combinations correspond the four-quadrant respectively, are circumference evenly distributed, encircle and form closed sensor device together, 360 all standing wire rope of detection scope, the reliability is high, and the detection precision is high, and the defect location is accurate, can monitor many wire rope simultaneously, and detection efficiency is high, and the device installation and maintenance are convenient, can realize the effective monitoring of elevator wire rope state.
Drawings
Fig. 1 is a schematic diagram of a real-time online hoop type multistrand elevator wire rope distribution quadrant monitoring system of the present invention;
fig. 2 is a schematic view of the middle encircling type electromagnetic monitoring device of the present invention;
fig. 3 is an exploded schematic view of the middle encircling electromagnetic monitoring device of the present invention;
fig. 4 is a schematic diagram of one of the electromagnetic modules of the present invention;
fig. 5 is a schematic view of the electromagnetic module mounting bracket of the present invention when closed;
fig. 6 is a schematic view of the electromagnetic module mounting bracket of the present invention when opened;
FIG. 7 is a schematic view of a kinematic locating apparatus of the present invention;
FIG. 8 is a schematic view of the middle chain embracing support of the present invention when closed;
FIG. 9 is a schematic view of the middle chain embracing support of the present invention when opened;
fig. 10 is the installation layout schematic diagram of the real-time online hoop type multi-strand elevator wire rope distribution quadrant monitoring system of the present invention on the elevator.
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 to 7, a real-time online encircling elevator steel wire rope 4 distribution quadrant monitoring system comprises an encircling electromagnetic monitoring device 1, a motion positioning device 2 and a data acquisition and processing module, wherein:
the encircling type electromagnetic monitoring device 1 comprises an electromagnetic module mounting frame and four electromagnetic modules mounted on the electromagnetic module mounting frame, wherein the electromagnetic module mounting frame is provided with a through hole used as a moving channel of the steel wire rope 4; the steel wire rope 4 can penetrate through the through hole, a gap is formed between the steel wire rope 4 and the encircling type electromagnetic monitoring device 1, the steel wire rope 4 and the encircling type electromagnetic monitoring device 1 are free of contact, and the encircling type electromagnetic monitoring device 1 does not influence the movement of the steel wire rope 4 so as to realize monitoring of different axial positions of the steel wire rope 4.
The four electromagnetic modules are uniformly distributed in the circumferential direction and are respectively a first-quadrant electromagnetic module 101, a second-quadrant electromagnetic module 102, a third-quadrant electromagnetic module 103 and a fourth-quadrant electromagnetic module 104 which are respectively arranged in a first quadrant to a fourth quadrant of a Cartesian coordinate system; the axis of the steel cord 4 passes through the origin of the cartesian coordinate system.
As a preferred structure, the electromagnetic module mounting frame includes a first surrounding bracket 106 and a second surrounding bracket 105, the first surrounding bracket 106 is provided with the first quadrant electromagnetic module 101 and the second quadrant electromagnetic module 102, the second surrounding bracket 105 is provided with the third quadrant electromagnetic module 103 and the fourth quadrant electromagnetic module 104, one end of the first surrounding bracket 106 and one end of the second surrounding bracket 105 are hinged together through a surrounding rotating shaft 108 and can be rotated to open and close, and the other end is connected through a surrounding buckle lock to lock the first surrounding bracket 106 and the second surrounding bracket 105; wherein, the central line of the encircling rotating shaft 108 is perpendicular and parallel to the central line of the intrados of the yoke 111. The first-quadrant electromagnetic module 101 and the second-quadrant electromagnetic module 102 are mounted in a slot of the first surrounding bracket 106 through a fixing buckle 109, and the third-quadrant electromagnetic module 103 and the fourth-quadrant electromagnetic module 104 are mounted in a slot of the second surrounding bracket 105 through a fixing buckle 109.
For each electromagnetic module, each electromagnetic module comprises an E-shaped magnetic core 11, an excitation coil 12 and two induction coils 13, the E-shaped magnetic core 11 comprises an arc-shaped yoke portion 111 and three pole arms extending from an inner arc surface of the yoke portion 111, so that a cross section of the E-shaped magnetic core 11 perpendicular to a central line of the inner arc surface of the yoke portion 111 is in an arc shape, therefore, the E-shaped magnetic core 11 of the present invention is equivalent to a conventional E-shaped magnetic core with a yoke portion perpendicular to the pole arms being integrally bent into an arc shape, the three pole arms are two side pole arms 113 and a middle pole arm 112 located between the two side pole arms 113, the excitation coil 12 is mounted on the middle pole arm 112, the induction coil 13 is mounted on each side pole arm 113, magnetic lines emitted by the excitation coil 12 pass through a plurality of steel wires in a quadrant where the electromagnetic module is located, and then pass through the induction coils 13 on both sides to form a closed loop, namely, the magnetic lines of force of each electromagnetic module can independently form a closed loop, and four electromagnetic modules are arranged around the steel wire rope 4; wherein, the cross section of the E-shaped magnetic core 11 is a section perpendicular to the centerline of the intrados surface of the yoke portion 111;
the four electromagnetic modules are combined together in a closed loop formed in the circumferential direction of the steel wire rope 4, and the circumferential surface of the steel wire rope 4 can be fully covered by 360 degrees.
The data acquisition processing module is respectively connected with the induction coils 13 of the electromagnetic modules, so that the states of the multi-strand steel wires in the quadrants can be monitored through magnetic flux conditions, the stress of the steel wire rope 4 can be analyzed, the states of the detection points of the steel wire rope 4 can be analyzed and judged through magnetic flux comparison in the same quadrant and magnetic flux comparison in different quadrants, and the jumping of the steel wire rope and the internal defects of the multi-strand steel wires in the quadrants can be monitored through the magnetic flux conditions. Wherein, the detection point refers to the position on the steel wire rope 4 detected by the encircling electromagnetic monitoring device 1. Two aspects of the state of the steel wire rope 4 can be analyzed and known through magnetic flux: 1. the jumping is abnormal, and the magnetic fluxes of different quadrants change during abnormal jumping; 2. when the internal defects of the steel wire rope exist, the defects such as wire breakage and the like in the steel wire rope can be reflected in the change of magnetic flux, whether the surface and the internal area of the steel wire rope corresponding to the quadrant have the defects or not can be judged by analyzing the magnetic flux of the four quadrants and the change of the magnetic flux at different axial positions in the same quadrant, and then guidance is provided for fixed-point maintenance of maintenance personnel, and the fixed point is accurately positioned according to the axial position and the circumferential quadrant.
The motion positioning device 2 comprises a support rod 202, a roller 203 and an encoder, one end of the support rod 202 is installed on the electromagnetic module installation frame, the other end of the support rod 202 is installed on the roller 203, the roller 203 is tightly pressed on the steel wire rope 4 to rotate along with the motion of the steel wire rope 4, the encoder is installed on the roller 203 to realize the positioning of the steel wire rope 4 through the rotation of the roller 203, the encoder is used for recording the number of rotating turns of the roller 203, and the position detection point realizes the positioning of defects along the axial direction of the steel wire rope along the position information of the steel wire rope 4. The utility model discloses a gyro wheel 203 preferably adopts the recess gyro wheel, and its excircle has the round recess, and wire rope 4 is located gyro wheel 203's recess, is difficult to drop from gyro wheel 203.
Further, the motion positioning device 2 further comprises a tension spring 201, one end of the tension spring 201 is installed on the electromagnetic module installation frame, the other end of the tension spring 201 is installed on the supporting rod 202, and the tension spring 201 provides pressing force for the motion positioning device 2, so that the roller 203 is pressed on the steel wire rope 4 all the time.
One end of the supporting rod 202 is hinged to the electromagnetic module mounting frame through a hinge shaft, and the center line of the hinge shaft is perpendicular to the center line of the intrados surface of the yoke portion 111. The hinge shaft is matched with the tension spring 201 to further ensure that the roller 203 can be pressed on the steel wire rope 4 all the time.
Referring to fig. 8 and 9, further, the electromagnetic module mounting rack of the encircling electromagnetic monitoring device 1 may be expanded into multiple rings (each first encircling support 106 and the corresponding second encircling support 105 together form a ring), and the electromagnetic module mounting rack includes multiple sets of support units;
for each group of support units, each support unit comprises a first surrounding support 106 and a second surrounding support 105, the first surrounding support 106 and the second surrounding support 105 jointly enclose a through hole serving as a movement channel of the steel wire rope 4, so that the electromagnetic module mounting rack can be penetrated by a plurality of steel wire ropes 4, the monitoring system can monitor the state of a plurality of steel wire ropes 4 simultaneously, the first surrounding support 106 is provided with the first quadrant electromagnetic module 101 and the second quadrant electromagnetic module 102, and the second surrounding support 105 is provided with the three-quadrant electromagnetic module 103 and the four-quadrant electromagnetic module 104;
the four electromagnetic modules on each group of bracket units are respectively arranged in four quadrants of a Cartesian coordinate system at respective positions;
all the first surrounding brackets 106 are fixedly connected together and all the second surrounding brackets 105 are also fixedly connected together, so that the first surrounding brackets 106 and the second brackets are combined together to form an interlinking surrounding bracket; the first surrounding support 106 and the second surrounding support 105 at one end are hinged together through a surrounding rotating shaft 108, the first surrounding support 106 and the second surrounding support 105 at the other end are connected through a surrounding buckle lock, and the central line of the surrounding rotating shaft 108 is perpendicular to and parallel to the central line of the inner arc surface of the yoke portion 111.
Referring to fig. 10, a fixing support is arranged on the encircling electromagnetic monitoring device 1, the fixing support is arranged on a machine placing beam, a steel structure upright post or a concrete shaft wall of an elevator, and the encircling electromagnetic monitoring device 1 is arranged in a steel wire rope 4 area between a car 5 and a motor.
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 each electromagnetic module through an integrated signal wire 3, the remote monitoring terminal processes the magnetic flux acquired by the encircling electromagnetic monitoring device 1, grouping according to the quadrant positions of different electromagnetic modules to obtain a circle quadrant point cloud picture formed by magnetic flux detection data of the section of the steel wire rope 4, the state of the steel wire in the corresponding quadrant is analyzed and judged through the abnormal circle quadrant point cloud picture, the quadrant where the defect is located in the section of the steel wire rope 4 is positioned, therefore, the position information of the defects in the circumferential direction of the steel wire rope is obtained, the remote monitoring terminal can also obtain the position information of the defects along the axial direction of the steel wire rope according to the feedback of the encoder, and the jumping condition of the steel wire rope is obtained according to the change condition of the magnetic flux of each quadrant. The circle quadrant point cloud picture is composed of magnetic flux data collected by four quadrant electromagnetic modules. The remote monitoring terminal obtains the magnetic flux change according to the four-quadrant monitoring to analyze the jumping amount and the jumping direction of the steel wire rope 4, and the tensioning degree and the elongation condition of the steel wire rope 4 are obtained. The utility model discloses can survey single wire rope's beating, if wire rope is always beated at certain direction, then the electromagnetic module that corresponds surveys magnetic field and other just different. For example, if the wire rope is always jumping in one quadrant or three quadrants, that is, the wire rope is far away from the first quadrant electromagnetic module 101 and the third quadrant electromagnetic module 103, the magnetic flux data monitored by the first quadrant electromagnetic module 101 and the third quadrant electromagnetic module 103 will change (large or small) periodically, while the second quadrant electromagnetic module 102 and the fourth quadrant electromagnetic module 104 are basically unchanged, and the jumping direction of the wire rope can be determined according to the magnetic flux conditions of the four quadrants, and then the adjustment countermeasures can be taken out. In a similar way, the utility model discloses also can be used for many with the monitoring of wire rope runout volume.
The remote monitoring terminal can also carry out early warning on the state of the steel wire rope 4 obtained by analysis, the state can be divided into a plurality of levels according to the severity of adverse states, and different modes are used for carrying out early warning in different levels.
The utility model discloses an embrace formula electromagnetic monitoring device 1's electromagnetic module adopts general modular design, connects standardized integrated signal line 3, and integrated signal line 3 is connected with on-the-spot collection system through standardized joint, and electromagnetic module directly pulls out the signal line when breaking down and connects and carry out whole change, and on-the-spot collection system receives all wire rope 4 magnetic fluxes of an elevator to and preliminary treatment, transmit for remote monitoring terminal through wireless network such as 5G or wired mode again.
According to another aspect of the utility model, still provide and adopt formula elevator wire rope 4 distribution quadrant monitoring system's monitoring method encircles, including following step:
(1) the first-quadrant electromagnetic module 101, the second-quadrant electromagnetic module 102, the third-quadrant electromagnetic module 103 and the fourth-quadrant electromagnetic module 104 of the encircling electromagnetic monitoring device 1 respectively acquire magnetic fluxes of steel wires in corresponding quadrants, and the motion positioning device 2 moves along with the steel wire rope 4 to acquire position information of detection points along the axial direction of the steel wire rope 4;
(2) the magnetic flux and the position information of the detection point along the axial direction of the steel wire rope 4 are acquired and are uploaded to a field acquisition device of the data acquisition processing module through the integrated signal wire 3;
(3) the field acquisition device transmits the received magnetic fluxes of all the steel wire ropes 4 of one elevator and the position information of the detection points along the axial direction of the steel wire ropes 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 encircling electromagnetic monitoring device 1 according to the quadrant positions of different electromagnetic modules, and obtains a circumference quadrant point cloud chart formed by magnetic flux detection data of the section of the steel wire rope 4;
(5) screening abnormal circumferential quadrant point cloud pictures by a remote monitoring terminal; preferably, the remote monitoring terminal merges and stores the abnormal circumference quadrant point cloud picture and the corresponding position information along the axial direction of the steel wire rope 4, does not merge the normal circumference quadrant point cloud picture and the position information along the axial direction of the steel wire rope 4, separately compresses the abnormal circumference quadrant point cloud picture and the position information, stores the abnormal circumference quadrant point cloud picture and the position information, and automatically deletes the abnormal circumference quadrant point cloud picture after a period of time;
(6) the remote monitoring terminal analyzes the abnormal circle quadrant point cloud picture, firstly compares the abnormal circle quadrant point cloud picture with the magnetic fluxes collected by the two induction coils 13 of the same quadrant electromagnetic module, and secondly compares the abnormal circle quadrant point cloud picture with the magnetic fluxes of different quadrants to analyze and judge the state of the detection point of the steel wire rope 4;
(7) through comparison, if the magnetic fluxes acquired by the two induction coils 13 of the same-quadrant electromagnetic module are inconsistent, the remote monitoring terminal judges that the detection point has a defect;
(8) the remote monitoring terminal judges the severity of the defects of the detection point by comparing the magnetic flux difference degrees of different quadrants;
(9) and the remote monitoring terminal generates an analysis result of a detection point of the steel wire rope 4, attaches quadrant information of a steel wire rope part with a problem and position information along the axial direction of the steel wire rope, and positions the position of the defect along the circumferential direction of the steel wire rope and the position along the axial direction of the steel wire rope 4.
(10) The remote monitoring terminal carries out early warning on the state of the steel wire rope 4 obtained by analysis, the state is divided into a plurality of levels according to the severity of the bad state, and different modes are used for carrying out early warning on different levels.
(11) The remote monitoring terminal analyzes the jumping amount and the jumping direction of the steel wire rope 4 according to the magnetic flux change obtained by four-quadrant monitoring, obtains the tensioning degree and the elongation condition of the steel wire rope 4, and generates a suggestion for adjusting the tightness of the steel wire rope 4.
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 (6)
1. Real-time online surround formula elevator wire rope distribution quadrant monitoring system, its characterized in that, including surround formula electromagnetic monitoring device, motion positioner and data acquisition processing module, wherein:
the encircling type electromagnetic monitoring device comprises an electromagnetic module mounting frame and four electromagnetic modules mounted on the electromagnetic module mounting frame, wherein the electromagnetic module mounting frame is provided with a through hole used as a steel wire rope moving channel;
the four electromagnetic modules are respectively a first-quadrant electromagnetic module, a second-quadrant electromagnetic module, a third-quadrant electromagnetic module and a fourth-quadrant electromagnetic module which are respectively arranged in a first quadrant to a fourth quadrant of a Cartesian coordinate system, and the four electromagnetic modules are arranged around the steel wire rope;
for each electromagnetic module, each electromagnetic module comprises an E-shaped magnetic core, an excitation coil and two induction coils, wherein the E-shaped magnetic core comprises an arc-shaped yoke part and three polar arms extending out of the inner arc surface of the yoke part, so that the section of the E-shaped magnetic core, which is perpendicular to the central line of the inner arc surface of the yoke part, is in an arc shape, the three polar arms are two side polar arms and a middle polar arm positioned between the two side polar arms, the excitation coil is installed on the middle polar arm, and the induction coil is installed on each side polar arm;
the four electromagnetic modules form a closed loop in the circumferential direction of the steel wire rope, and the closed loop covers the circumferential surface of the steel wire rope in a 360-degree mode;
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 electromagnetic module mounting frame, the other end of the supporting rod is installed on the roller, the roller is pressed on the steel wire rope, and the encoder is installed on the roller.
2. The real-time online encircling elevator steel wire rope distribution quadrant monitoring system according to claim 1, wherein the motion positioning device further comprises a tension spring, one end of the tension spring is installed on the electromagnetic module installation frame, and the other end of the tension spring is installed on the supporting rod, so that the roller is always pressed on the steel wire rope;
one end of the supporting rod is hinged to the electromagnetic module mounting frame through a hinge shaft, and the center line of the hinge shaft is perpendicular to the center line of the inner arc surface of the yoke.
3. The real-time online surround type elevator steel wire rope distribution quadrant monitoring system according to claim 1, characterized in that the electromagnetic module mounting bracket includes a first surround bracket and a second surround bracket, the first surround bracket is provided with the first quadrant electromagnetic module and the second quadrant electromagnetic module, the second surround bracket is provided with the three-quadrant electromagnetic module and the four-quadrant electromagnetic module, one end of the first surround bracket and one end of the second surround bracket are hinged together through a surround rotating shaft, and the other end is connected through a surround latch, wherein the center line of the surround rotating shaft is perpendicular to and parallel to the center line of the inner arc surface of the yoke.
4. The real-time online encircling elevator wire rope distribution quadrant monitoring system according to claim 1, wherein said electromagnetic module mounting bracket comprises a plurality of sets of bracket units;
for each group of support units, each support unit comprises a first surrounding support and a second surrounding support, the first surrounding support and the second surrounding support surround a through hole serving as a steel wire rope moving channel together, so that the electromagnetic module mounting frame can be penetrated by a plurality of steel wire ropes, the first surrounding support is provided with the first quadrant electromagnetic module and the second quadrant electromagnetic module, and the second surrounding support is provided with the third quadrant electromagnetic module and the fourth quadrant electromagnetic module;
the four electromagnetic modules on each group of bracket units are respectively arranged in four quadrants of a Cartesian coordinate system at respective positions;
all the first encircling brackets are fixedly connected together, and all the second encircling brackets are also fixedly connected together, so that the first encircling brackets and the second brackets are combined together to form the interlinking encircling bracket; wherein one end the first surrounding support and the second surrounding support are hinged together through a surrounding rotating shaft, the other end of the first surrounding support and the second surrounding support are connected through a surrounding buckle lock, and the central line of the surrounding rotating shaft is perpendicular to and parallel to the central line of the inner arc surface of the yoke.
5. The real-time online encircling elevator steel wire rope distribution quadrant monitoring system according to claim 1, characterized in that the data acquisition processing module comprises a field acquisition device and a remote monitoring terminal capable of communicating with the field acquisition device, and the field acquisition device is respectively connected with each electromagnetic module through an integrated signal line.
6. The real-time online encircling elevator steel wire rope distribution quadrant monitoring system according to claim 1, characterized in that a fixed support is arranged on the encircling electromagnetic monitoring device, the fixed support is installed on a machine placing beam, a steel structure upright post or a concrete shaft wall of an elevator, and the encircling electromagnetic monitoring device is installed in a steel wire rope area between a car and a motor.
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| CN202022984993.4U CN213834114U (en) | 2020-12-14 | 2020-12-14 | Real-time online encircling type elevator steel wire rope distribution quadrant monitoring system |
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| CN202022984993.4U CN213834114U (en) | 2020-12-14 | 2020-12-14 | Real-time online encircling type elevator steel wire rope distribution quadrant monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112456271A (en) * | 2020-12-14 | 2021-03-09 | 中铁第四勘察设计院集团有限公司 | Real-time online encircling elevator steel wire rope distribution quadrant monitoring system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112456271A (en) * | 2020-12-14 | 2021-03-09 | 中铁第四勘察设计院集团有限公司 | Real-time online encircling elevator steel wire rope distribution quadrant monitoring system and method |
| CN112456271B (en) * | 2020-12-14 | 2023-12-19 | 中铁第四勘察设计院集团有限公司 | Real-time online encircling elevator steel wire rope distribution quadrant monitoring system and method |
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