CN215666436U - Multi-rope friction type elevator health real-time monitoring system - Google Patents

Abstract

The utility model discloses a real-time health monitoring system of a multi-rope friction type elevator, which belongs to the technical field of mine equipment detection and comprises a winding drum monitoring system, a tail rope monitoring system and a cage monitoring system, wherein the winding drum monitoring system comprises a winding drum abrasion monitoring device, a pressing device and a winding drum monitoring controller; the tail rope monitoring system comprises an upper layer of isolating wood, a lower layer of isolating wood, a camera and a tail rope monitoring controller, wherein the camera is respectively connected with the tail rope monitoring controller; the cage monitoring system comprises a cage monitoring device and a cage monitoring controller, wherein the cage monitoring device arranged on the cage is connected with the cage monitoring controller. Has the advantages that: the abrasion of a rope groove of a winding drum of the multi-rope friction type hoister, shaft cage guide and tail rope conditions are monitored in real time, potential safety hazards of the hoister are reduced, and the operation rate of equipment is improved.

Description

Multi-rope friction type elevator health real-time monitoring system

Technical Field

The utility model belongs to the technical field of detection of mining equipment, and particularly relates to a real-time health monitoring system for a multi-rope friction type elevator.

Background

The most widely applied hoisting system in mines is a multi-rope friction type hoisting machine, a plurality of steel wire ropes run simultaneously, and the safety factor is far greater than that of a winding type hoisting machine. The friction liner and the wire rope of dress on the reel produce frictional force and drive the skip, the cage, the running of counter weight when the friction formula lifting machine of restricting is worked, but because the atress is inhomogeneous between the rope during the lifting machine operation, the cage guide screw is not hard up, the leading wheel beat, cage regulation hydro-cylinder seepage, reason influences such as equipment trouble scram, and to cause abnormal damage to lifting machine reel grooving, pit shaft cage, lifting machine tail rope etc. all can influence life, deformation fracture even when serious, seriously threaten and promote safety, bring unnecessary direct and indirect economic loss.

Because the tension among the ropes is unbalanced, when the steel wire rope with smaller tension passes through the main driving wheel, the steel wire rope can generate play in the rope groove, and great sound is generated under serious conditions, so that the liners of the individual rope grooves are rapidly worn, and the cylinder falling accident is caused. In addition, the steel wire rope can also rotate when moving in the rope groove, so that the steel wire rope and the edge of the rope groove have undercut phenomena in different degrees, the width of the rope groove is increased, the friction coefficient is reduced, and hidden dangers are buried for improving safety.

The unbalanced tension can cause the steel wire rope with smaller tension to generate large amplitude shaking and even collision when in operation, and on the contrary, the steel wire rope with larger tension is worn out prematurely and generates permanent fatigue; when single atress is too big, can make the inside grease of wire rope spill over the surface, lead to inside oil content to reduce, wearing and tearing between the steel wire accelerate, reduce wire rope service life by a wide margin, very easily cause the rope breakage accident. The tension imbalance of the steel wire rope of the multi-rope friction type elevator is great in the lifting process, and how to quickly and accurately measure the diameter error between the rope grooves on the winding drum, so that the technical problem that the tension imbalance phenomenon among multiple ropes is urgently needed to be solved by a lifting worker is avoided.

The inspection method in the prior art of the multi-rope friction type elevator comprises the following steps: (1) the depth gauge measures the depth of a rope groove of a winding drum of the elevator, the dial indicator measures the rope groove of the winding drum of the elevator, and the perimeter error of the rope groove is measured by a marking method; (2) manually inspecting a shaft cage guide: an inspector takes the cage, operates at the maintenance speed (0.5 m/s), manually inspects the joint of the cage way during operation, observes and records the vibration condition of the cage during operation, and rechecks the abnormal vibration part after the operation; (3) and (3) alarm monitoring of a vibration sensor: installing a vibration sensor on the cage, comparing a set alarm threshold value according to a vibration signal received by the vibration sensor, and alarming when the alarm threshold value is exceeded; (4) manually inspecting tail ropes and isolating wood: according to the work requirement, every day inspectors need to climb the ladder room and then check the state of the tail rope to the isolation wood level, and whether the isolation wood gap meets the requirement or not and whether the isolation wood is firm or not are checked. Observing whether the tail rope and the tail rope rotator are abnormal or not; (5) and installing a video monitor to monitor the tail rope and the isolation wood.

The inspection method of the cage guide and the tension balancing device of the hoisting system of most mine enterprises is that an inspection worker stands on the top of a cage and moves along with the cage, and the fastening state of a cage guide joint and the stroke change of a rope adjusting oil cylinder are inspected in a shaft. And the inspection of the tail rope is carried out by inspection personnel climbing the ladder room and looking over the tail rope ring and the isolation wood.

However, the prior art has the following disadvantages:

(1) the error of the measurement result of the manual measurement rope groove is large, and the accuracy cannot be guaranteed. When a depth gauge or a dial indicator is used for measurement, the data error is large, the continuous measurement of the depth of the rope groove of the whole winding drum cannot be realized, the whole measurement process consumes much time, the efficiency is low, the missing measurement is easy to occur, and the key data is lost; although the rope groove error monitor is used in the prior art, the problems that the contact between the measuring roller and the rope groove is not tight, the contact cannot be kept always, and the running is empty exist, the error is large, and the risk is large.

(2) The inspection personnel stand on the cage to perform inspection in the shaft, so that the working environment is relatively dangerous; the inspection speed is the maintenance speed, the cage runs slowly, various problems existing in the outlet channel cannot be comprehensively reflected, and the inspection method has limitation; the manual inspection takes longer time, and influences the normal operation of production.

(3) Most of the traditional routing inspection is carried out for 1 time at intervals of several days or 1 week, and the real-time monitoring of the health condition of the system cannot be improved. The inspection frequency is increased, so that the production is influenced, the frequency of the inspection personnel exposed in a dangerous environment is increased, and the mine safety production is not facilitated; the vibration sensor in the prior art can give an alarm on the position where abnormal vibration occurs, but the data is thin and cannot provide reference and basis for equipment management personnel; the vibration is large when the hoister starts or stops running, and false alarm is easy to occur; real-time data and chart viewing cannot be realized, and analysis and qualification by equipment managers are not facilitated; and the early warning and fault judgment can not be automatically made.

(4) Every day, inspectors need to climb a ladder room and then check the state of the main shaft tail rope to the isolation wood level, and whether the isolation wood gap meets the requirements and whether the isolation wood is firm is checked. The ladder compartment is positioned in the shaft, a worker wears the raincoat, the shaft is not illuminated, and fine ores are arranged in the ladder compartment, so that the labor intensity for climbing the ladder compartment is high, and the safety risk is high. Meanwhile, when the staff climb the ladder room, the elevator cannot move the motor car for avoiding cross operation.

(5) The browsing and observation work of installing video monitoring is tedious, and workers are difficult to ensure that the attention is concentrated all the time, so that the phenomena of few detection and omission, negative coping and the like are caused. While the complexity of the production environment results in equipment that is easily damaged. Because the operating environment is harsh, the service life of the equipment is affected, and the risk of failure also exists in the operation process of the monitoring system, so that the system cannot normally operate. In addition, when an alarm and an emergency abnormal condition occur, the emergency and response speed of workers seriously affect the speed of mine emergency treatment and the safety production efficiency.

(6) The existing tail rope monitoring technology has no AI identification and alarm functions, so that when a falling object falls in a shaft, inspectors and video monitoring cannot effectively acquire a falling track to make alarm judgment. The shaft falling object is a great danger source, is often overlooked, and is particularly difficult to detect, such as: if the thin steel wire and the thin cable are wound on the tail rope, the tail rope is very easy to twist, the tail rope protection device is easy to trigger, and the lifting equipment is suddenly stopped or a more serious tank falling accident occurs.

Therefore, a real-time monitoring system for the healthy operation of the multi-rope friction type elevator is urgently needed to be developed, the problems of groove disengagement of the steel wire rope, abrasion detection of a winding drum rope groove, real-time monitoring of a shaft cage guide and monitoring of a tail rope are solved, the safety and stability of the operation of the elevator system are enhanced, the damage of the steel wire rope caused by different tension differences of the abrasion of the rope groove is avoided, and the service lives of the steel wire rope, the shaft cage guide and the tail rope are prolonged.

SUMMERY OF THE UTILITY MODEL

In order to ensure the safe operation of the multi-rope friction type hoister, the utility model decides to develop a real-time monitoring system for the healthy operation of the multi-rope friction type hoister; abnormal conditions such as abrasion of a rope groove of a winding drum of the elevator, looseness and deformation of a shaft cage guide and the like are monitored, a tail rope, isolation wood and shaft falling objects are monitored in real time, platform alarming, pushing and reminding are carried out, operation and maintenance personnel can diagnose accurately, high-efficiency fixed-point maintenance and repair are achieved, potential safety hazards of the elevator are reduced, and equipment operation rate is improved.

A real-time health monitoring system of a multi-rope friction type elevator comprises a winding drum monitoring system, a tail rope monitoring system and a cage monitoring system, wherein the winding drum monitoring system comprises a winding drum abrasion monitoring device, a pressing device and a winding drum monitoring controller; the tail rope monitoring system comprises an upper layer of isolating wood, a lower layer of isolating wood, a camera and a tail rope monitoring controller, wherein the upper layer of isolating wood and the lower layer of isolating wood are vertically arranged, the upper layer of isolating wood and the lower layer of isolating wood separate a tail rope respectively, the upper layer of isolating wood and the lower layer of isolating wood are provided with the camera respectively, and the cameras are connected with the tail rope monitoring controller respectively; the cage monitoring system comprises a cage monitoring device and a cage monitoring controller, wherein the cage monitoring device arranged on the cage is connected with the cage monitoring controller.

Further, the winding drum wear monitoring device comprises rollers, a coupler and encoders, wherein the rollers are arranged in the rope grooves on the winding drum respectively, the encoders are mounted on the rollers through the couplers respectively, and the encoders are connected with the winding drum monitoring controller respectively.

Further, closing device includes spring, connecting rod, bracing piece, connecting rod one end is passed through the spring and is connected with the encoder, the other end movable mounting of connecting rod is on the bracing piece.

Furthermore, the pressing device further comprises an electric push rod, one end of the electric push rod is installed on the supporting rod, and the other end of the electric push rod is installed on the connecting rod.

Further, the upper layer of insulation wood comprises 3 insulation wood, and the 3 insulation wood separates the tail rope; the lower layer of isolating wood comprises 4 isolating wood, and the 4 isolating wood separates the tail rope. The left end and the right end of the upper surface of the upper isolation wood are respectively provided with a camera; cameras are respectively installed at the left end and the right end of the lower surface of the lower isolation wood layer.

Furthermore, the tail rope monitoring controller comprises an optical transceiver, a switch, a streaming media server, an intelligent video analysis server and an intelligent analysis client, wherein one end of the optical transceiver is connected with the camera, and the other end of the optical transceiver is connected with the switch; the other end of the switch is respectively connected with the streaming media server, the intelligent video analysis server and the intelligent analysis client.

Further, cage monitoring devices include vibration sensor and accent rope hydro-cylinder stroke monitoring devices.

Further, cage monitoring controller includes wireless bridge, edge server, cloud server, customer end, wireless bridge one end is installed in the cage top, the other end of wireless bridge is installed in ground, vibration sensor and accent rope hydro-cylinder stroke monitoring devices are connected with edge server through wireless bridge respectively.

Further, transfer rope hydro-cylinder stroke monitoring devices includes laser rangefinder sensor, communication case, battery box, laser rangefinder sensor sets up in hanging the hydro-cylinder bottom, laser rangefinder sensor is connected with communication case and battery box respectively.

Furthermore, a serial port communication server and a switch are arranged in the communication box, so that the laser ranging sensor is connected with the wireless network bridge through the serial port communication server and the switch, and the vibration sensor is connected with the wireless network bridge.

The utility model has the following beneficial effects:

1. the drum monitoring system adopts a structure of combining a photoelectric encoder and a PLC to measure the depth difference of the rope grooves of the drum, greatly improves the measurement precision, accurately masters the diameter of the rope grooves, compares whether the abrasion degrees are consistent or not, and avoids the danger caused by the error amplification due to the different abrasion degrees of the rope grooves; meanwhile, the abrasion rule of the rope groove is detected, a mathematical model is established, and data support is provided for the later maintenance of the elevator; the diameters of the winding drums are different, the circumferences of the winding drums are different, when the diameters of the winding drums are different, the diameters of the four rollers are the same, and the rotating turns of the rollers are different; the roller is coaxial with the encoder, the number of turns of the encoder is different, and the converted diameters are different; in order to ensure the measurement accuracy, the four rollers and the rope grooves are always in close contact without running empty, and the pressing device is added to ensure the measurement accuracy of the drum monitoring system.

2. The tail rope monitoring system can assist manual inspection, and can perform uninterrupted detection on the tail rope and a tail rope ring for 24 hours all day, so that an inspection blind area is eliminated; the device can replace manual visual identification, reduce the influence of human factors on the system and improve the effective rate of inspection and detection; the system has the functions of alarming and pushing, can send important equipment alarming information and video within a period of time to equipment management personnel for the judgment of the technology and the management personnel, and can be stopped for maintenance and overhaul in time to ensure the use safety of equipment; hidden danger contents which are not easy to perceive and are easy to neglect can be monitored, such as: the tail rope accidentally swings abnormally and greatly, foreign matters in a shaft fall, and the like, so that various potential safety hazards are greatly eliminated, and the intrinsic safety is improved.

3. The cage monitoring system realizes the correlation of amplitude and reference data such as position, speed and the like, can check through the system, can realize accurate positioning, and can perform auxiliary analysis through related technical parameters; the stroke distance of the rope adjusting oil cylinder is monitored in real time, and whether the tension balancing device needs to be adjusted or whether a steel wire rope of a lifting system needs to be taken up can be obtained; through the total cylinder stroke change after the adjustment, whether the oil leakage condition exists in the system can be found in time, so that equipment inspection maintainers can find the problem as soon as possible and solve the problem. The vibration sensor realizes dynamic vibration data monitoring of the cage, the detection result has objectivity, and the real running and use conditions of the equipment can be reflected; the data and the oscillogram can be automatically analyzed, and a report is provided for the equipment management personnel to analyze and check, so that the equipment detection efficiency is improved, and the manual participation degree is reduced; the edge server is used for data processing and calculation, and the processing mode close to the data source can bring faster insight, better response time and better broadband availability; data does not need to be continuously transmitted and processed back and forth between servers, so that the data use efficiency is higher, the delay is lower, the processing speed is higher, and the probability of data problems is reduced; meanwhile, the edge server can integrate and process more data at the same time, and realize functions such as waveform analysis and the like.

4. The reel monitoring system, the tail rope monitoring system and the cage monitoring system which are contained in the real-time health monitoring system of the multi-rope friction type elevator respectively monitor three important structures of the multi-rope friction type elevator, independent monitoring is closely related, one of the three structures can feed back in time when abnormal, real-time inspection of the other two structures is reminded, normal operation of the multi-rope friction type elevator is guaranteed, and safety of the multi-rope friction type elevator is guaranteed simultaneously in a triple mode.

Drawings

Fig. 1 is an overall structural schematic diagram of a real-time health monitoring system of a multi-rope friction type elevator;

FIG. 2 is a schematic diagram of a roll monitoring system;

FIG. 3 is a schematic view of a connection structure of an encoder;

FIG. 4 is a schematic structural diagram of a tail rope monitoring system;

FIG. 5 is a schematic view of a connection structure of the tail rope monitoring controller;

FIG. 6 is a monitoring flow diagram of the spacer;

FIG. 7 is a monitoring flow diagram of the tail rope;

FIG. 8 is a schematic diagram of a cage monitoring system;

FIG. 9 is a schematic structural view of the rope-adjusting cylinder stroke monitoring devices distributed on a cage;

FIG. 10 is a partial enlarged view of the rope adjusting cylinder stroke monitoring device;

FIG. 11 is a graph showing the vibration monitoring of the cage in example 1;

fig. 12 is a diagram of vibration monitoring and rope-adjusting cylinder stroke monitoring on a cloud service display page of the cage monitoring controller in embodiment 1;

the reference numbers in the figures are:

1 reel, 2 upper head sheaves, 3 lower head sheaves, 4 cages, 5 vibration sensors, 6 balance weights, 7 cameras, 8 upper isolation wood layers, 9 lower isolation wood layers, 10 tail ropes, 11 connecting rods, 12 electric push rods, 13 supporting rods, 14 rollers, 15 encoders, 16 springs, 17 suspension oil cylinders, 18 laser ranging sensors, 19 communication boxes, 20 magnet reflecting plates, 21 ranging light beams, 22 battery boxes, 23 cage monitoring devices, 24 wireless bridges, 25 clients, 26 edge servers and 27 cloud servers.

Detailed Description

Example 1

Referring to fig. 1-12, a real-time health monitoring system for a multi-rope friction type elevator comprises a drum monitoring system, a tail rope monitoring system and a cage monitoring system.

Monitoring of abrasion depth difference of winding drum rope groove of elevator

The winding drum monitoring system comprises a winding drum wear monitoring device, a pressing device and a winding drum monitoring controller, wherein the winding drum wear monitoring device is installed at one end of the pressing device and is connected with the winding drum monitoring controller; the winding drum wear monitoring device comprises rollers 14, a coupler and encoders 15, the rollers 14 are arranged in the rope grooves on the winding drum respectively, the encoders 15 are mounted on the rollers 14 through the couplers respectively, and the encoders 15 are connected with the winding drum monitoring controller respectively. The pressing device comprises a spring 16, a connecting rod 11, a supporting rod 13 and an electric push rod 12, one end of the connecting rod 11 is connected with the encoder 15 through the spring 16, and the other end of the connecting rod 11 is movably arranged on the supporting rod 13; one end of the electric push rod 12 is mounted on the support rod 13, and the other end of the electric push rod 12 is mounted on the connecting rod 11. An operator can intuitively master the abrasion depth difference of each rope groove in a short time through dynamically displaying numerical values through the winding drum monitoring controller.

(II) tail rope isolation wood and shaft falling object detection

The tail rope monitoring system comprises an upper isolation wood 8, a lower isolation wood 9, a camera 7 and a tail rope monitoring controller, wherein the upper isolation wood 8 and the lower isolation wood 9 are vertically arranged, the upper isolation wood 8 is 3 isolation woods, the lower isolation wood 9 is 4 isolation woods, the upper isolation wood 8 and the lower isolation wood 9 are respectively separated from a tail rope 10, the upper surface of the upper isolation wood 8 and the lower surface of the lower isolation wood 9 are respectively provided with the camera 7, and the camera 7 is respectively connected with the tail rope monitoring controller.

The tail rope monitoring controller comprises an optical transceiver, a switch, a streaming media server, an intelligent video analysis server and an intelligent analysis client, wherein one end of the optical transceiver is connected with the camera, and the other end of the optical transceiver is connected with the switch; the other end of the switch is respectively connected with the streaming media server, the intelligent video analysis server and the intelligent analysis client, and the intelligent analysis client is provided with an intelligent video analysis system.

1. The research and application research of the mine intelligent video analysis system is carried out, a reliable, effective and economic intelligent video analysis and alarm linkage technology is established, the alarm and abnormal event processing flow is completed, and linkage with other related subsystems of a mine and a technical route of the linkage and the coordination are realized. According to the function application and the attribute of each module, the intelligent video analysis system of the project can be divided into the following seven layers, namely a business application layer, a service layer, a connection layer, a perception layer, a private cloud, unified user identity authentication and a data sharing interface.

2. The detection method of the isolating wood and the tail rope comprises the following steps: and transmitting the image acquired by the high-definition camera to an intelligent video analysis system, and if the image is abnormal, alarming by on-site voice light and pushing the image to an alarm information management platform.

3. The video configuration and management is mainly used for carrying out configuration of parameters such as IP, channels and resolutions of the camera, grouping, switching, logging in and logging out of the camera and other camera work management on multiple paths of videos. The videos are grouped and numbered according to different installation positions of the cameras and different monitoring functions, so that configuration and management of the videos are facilitated. The method supports 100 paths of video access, supports main stream general protocols of onvif, rtsp and rtp, and supports main stream media platforms of Haikang, Dahua and the like.

4. The main contents of the identification analysis are as follows:

(1) and detecting the relative distance between the two tail ropes in real time according to a set safety distance rule, wherein when the relative distance between the tail ropes is too close or too far and exceeds the set safety distance, the analysis server can send alarm information.

(2) When other foreign matters break into the video perimeter, the analysis server can trigger an alarm and send the alarm.

(3) Analyzing and identifying the abrasion condition of the isolating wood; and when the abrasion exceeds a set limit, triggering an alarm and sending.

(III) shaft cage guide detection

Cage is at normal operating in-process, and gyro wheel cage shoe and cage guide contact, when the cage guide non parallel appears, or when the joint dislocation appears, obvious abnormal vibration can take place for the cage, and vibration more obviously represents the cage guide and the contact of cage is unsatisfactory more. Under normal operating condition, the cage is at a high speed, the vibration condition is more complicated and changeable, and the collection of vibration data is continuous, can realize incessant data monitoring in a certain period of time.

The cage monitoring system comprises a cage monitoring device and a cage monitoring controller, wherein the cage monitoring device arranged on the cage is connected with the cage monitoring controller; the cage monitoring device comprises a vibration sensor 5 and a rope adjusting oil cylinder stroke monitoring device. Cage monitoring controller includes wireless bridge 24, edge server 26, cloud server 27, customer end 25, wireless bridge 24 one end is installed in cage 4 top, wireless bridge 24's the other end is installed in ground, vibration sensor 5 and accent rope hydro-cylinder stroke monitoring devices are connected with edge server 26 through wireless bridge 24 respectively. Transfer rope hydro-cylinder stroke monitoring devices includes laser rangefinder sensor 18, communication box 19, battery box 22, laser rangefinder sensor 18 sets up in hanging hydro-cylinder 17 bottom to set up a magnet reflecting plate 20, laser rangefinder sensor 18 is connected with communication box 19 and battery box 22 respectively. A serial port communication server and a switch are arranged in the communication box 19, so that the laser ranging sensor 18 is connected with the wireless network bridge 24 through the serial port communication server and the switch, and the vibration sensor 5 is connected with the wireless network bridge 24.

The invalid network bridge is powered by a storage battery, the transmission mode is point-to-point transmission, and the invalid network bridge can still be stably connected with the ground surface wireless network bridge and transmit data at the position of-500 m in a shaft in actual use test.

And after receiving the pilot signal, the ground wireless network bridge outputs the pilot signal to an edge server installed locally, and the edge server processes the vibration data. In the process of processing the vibration data transmitted to the earth surface, cage positions, cage running speeds, manually input cage guide interface position parameters and the like read by a PLC (programmable logic controller) system of the hoister can be combined to be matched with the vibration data; outputting the matched vibration data, and automatically generating a visual oscillogram according to the output vibration data, wherein when checking the amplitude position, personnel can check the corresponding running speed and position of the cage, whether the cage is at the interface of the cage and other information contents.

The edge server alarms the excess data according to the set parameters, analyzes the generated waveform and takes the frequency and amplitude of vibration as the basis. If the frequency is stable, the amplitude is small and the distance is long, the problem of abrasion of the roller cage shoe is judged. And if the amplitude appears around the position of the cage guide interface, judging that the cage guide interface is uneven. And the edge server uploads all processing data, problems and alarms to the cloud server. The cloud server is used as an inquiry page, personnel can log in by using a mobile phone and a computer, the influence of an intranet is avoided, the requirement for detecting and monitoring the running condition of equipment by equipment management personnel at any time can be met, and when an alarm or a problem occurs, the system sends the problem content to related personnel by using the WeChat client, so that the alarm information can be accurately sent.

Claims (10)

1. The utility model provides a healthy real-time monitoring system of friction formula lifting machine of many ropes which characterized in that: the device comprises a winding drum monitoring system, a tail rope monitoring system and a cage monitoring system, wherein the winding drum monitoring system comprises a winding drum wear monitoring device, a pressing device and a winding drum monitoring controller, the winding drum wear monitoring device is installed at one end of the pressing device, and the winding drum wear monitoring device is connected with the winding drum monitoring controller; the tail rope monitoring system comprises an upper layer of isolating wood, a lower layer of isolating wood, a camera and a tail rope monitoring controller, wherein the upper layer of isolating wood and the lower layer of isolating wood are vertically arranged, the upper layer of isolating wood and the lower layer of isolating wood separate a tail rope respectively, the upper layer of isolating wood and the lower layer of isolating wood are provided with the camera respectively, and the cameras are connected with the tail rope monitoring controller respectively; the cage monitoring system comprises a cage monitoring device and a cage monitoring controller, wherein the cage monitoring device arranged on the cage is connected with the cage monitoring controller.

2. The real-time health monitoring system for the multi-rope friction type elevator according to claim 1, characterized in that: the drum wear monitoring device comprises rollers, a coupler and encoders, wherein the rollers are arranged in the rope grooves on the drum respectively, the encoders are mounted on the rollers through the couplers respectively, and the encoders are connected with the drum monitoring controller respectively.

3. The real-time health monitoring system for the multi-rope friction type elevator according to claim 2, characterized in that: the pressing device comprises a spring, a connecting rod and a supporting rod, one end of the connecting rod is connected with the encoder through the spring, and the other end of the connecting rod is movably mounted on the supporting rod.

4. The real-time health monitoring system for the multi-rope friction type elevator according to claim 3, characterized in that: the pressing device further comprises an electric push rod, one end of the electric push rod is installed on the supporting rod, and the other end of the electric push rod is installed on the connecting rod.

5. The real-time health monitoring system for the multi-rope friction type elevator according to claim 1, characterized in that: the upper layer of isolating wood comprises 3 isolating wood, and the 3 isolating wood separates the tail rope; the lower layer of isolating wood comprises 4 isolating wood, and the 4 isolating wood separates the tail rope; the left end and the right end of the upper surface of the upper isolation wood are respectively provided with a camera; cameras are respectively installed at the left end and the right end of the lower surface of the lower isolation wood layer.

6. The real-time health monitoring system for the multi-rope friction type elevator according to claim 1, characterized in that: the tail rope monitoring controller comprises an optical transceiver, a switch, a streaming media server, an intelligent video analysis server and an intelligent analysis client, wherein one end of the optical transceiver is connected with the camera, and the other end of the optical transceiver is connected with the switch; the other end of the switch is respectively connected with the streaming media server, the intelligent video analysis server and the intelligent analysis client.

7. The real-time health monitoring system for the multi-rope friction type elevator according to claim 1, characterized in that: the cage monitoring device comprises a vibration sensor and a rope adjusting oil cylinder stroke monitoring device.

8. The real-time health monitoring system for the multi-rope friction type elevator according to claim 1, characterized in that: cage monitoring controller includes wireless bridge, edge server, cloud server, customer end, wireless bridge one end is installed in the cage top, the other end of wireless bridge is installed in ground, vibration sensor and transfer rope hydro-cylinder stroke monitoring devices are connected with the edge server through wireless bridge respectively.

9. The real-time health monitoring system for the multi-rope friction type elevator according to claim 7, characterized in that: transfer rope hydro-cylinder stroke monitoring devices includes laser rangefinder sensor, communication case, battery box, laser rangefinder sensor sets up in hanging the hydro-cylinder bottom, laser rangefinder sensor is connected with communication case and battery box respectively.

10. The real-time health monitoring system for the multi-rope friction type elevator according to claim 9, characterized in that: the communication box is internally provided with a serial port communication server and a switch, so that the laser ranging sensor is connected with the wireless network bridge through the serial port communication server and the switch, and the vibration sensor is connected with the wireless network bridge.

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