A fatigue monitoring device for railway station escalators

Abstract

The utility model discloses a kind of fatigue monitoring devices for escalator of railway station, belong to escalator safety technical field, including escalator main body, truss main body being arranged on the escalator main body, handrail belt being arranged on the truss main body, driving mechanism, main drive wheel bearing, ladder chain tensioning wheel bearing and driving main shaft, monitoring box is equipped on the escalator main body, main control panel is equipped in the monitoring box, data acquisition board one and data acquisition board two are electrically connected respectively on the main control panel, a plurality of vibration sensor connection ends are equipped on the data acquisition board one, noise sensor connection end, temperature sensor connection end and ambient temperature sensor connection end are equipped on the data acquisition board two;Driving mechanism, main drive wheel bearing and ladder chain tensioning wheel bearing outside are each equipped with vibration sensor connected with the vibration sensor connection end, the utility model realizes the real-time monitoring of escalator operating state, fault state, realizes fault early warning.

Description

Technical Field

[0001] This utility model relates to the field of escalator safety technology, specifically a fatigue monitoring device for railway station escalators. Background Technology

[0002] Escalators, as a means of transporting passengers within railway stations, primarily address the issue of rapid passenger evacuation. Most of the mechanical components of escalators are located within the machine room truss. The main driving load moving parts include the motor, reducer, main drive wheel, and step chain tensioner. These components are core components with significant driving loads during escalator operation, and their failure affects operation and passenger safety. Wear and failure of these core rotating drive load components often occur in the bearings. However, bearings can only be disassembled, inspected, and replaced during major escalator overhauls. During routine inspections, fault detection is limited to manual methods, primarily relying on listening and visual inspection. Due to the increasing passenger flow on railways, the carrying load of escalators continues to rise. Although carrying load requirements are specified during escalator procurement, escalators often operate at full capacity for extended periods. This wear and tear on bearings exacerbates the escalator failure rate and safety hazards. Some escalators operate with defects until major overhauls, making them difficult to detect. Therefore, designing a fatigue monitoring device for railway station escalators is essential. Utility Model Content

[0003] The purpose of this invention is to provide a fatigue monitoring device for railway station escalators to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a fatigue monitoring device for railway station escalators, comprising an escalator body, a truss body mounted on the escalator body, a handrail belt mounted on the truss body, a drive mechanism, a main drive wheel bearing, a step chain tension wheel bearing, and a drive shaft. A monitoring box is provided on the escalator body, and a main control board is provided inside the monitoring box. Data acquisition board one and data acquisition board two are electrically connected to the main control board. Data acquisition board one is provided with several vibration sensor connection terminals, and data acquisition board two is provided with noise sensor connection terminals, temperature sensor connection terminals, and ambient temperature sensor connection terminals.

[0005] Vibration sensors connected to the vibration sensor connection end are provided on the outer side of the drive mechanism, the main drive wheel bearing, and the ladder chain tensioner bearing. The vibration sensors are used to monitor the vibration generated by the drive mechanism, the main drive wheel bearing, and the ladder chain tensioner bearing, respectively.

[0006] The truss body is equipped with an infrared temperature sensor and an ambient temperature sensor, which are respectively connected to the temperature sensor connection end and the ambient temperature sensor connection end. The infrared temperature sensor and the ambient temperature sensor are used to monitor the handrail and the ambient temperature, respectively.

[0007] The truss body is also equipped with a noise sensor connected to the noise sensor connection end. The noise sensor is used to monitor the noise generated by the drive shaft. In conjunction with the vibration sensor, infrared temperature sensor, ambient temperature sensor and noise sensor, the vibration generated by the drive mechanism, the main drive wheel bearing and the step chain tension wheel bearing are monitored, as are the handrail belt and ambient temperature, and the noise generated by the drive shaft. The monitored vibration signal is transmitted to data acquisition board one through the vibration sensor connection end, and the monitored temperature and noise signals are transmitted to data acquisition board two through the temperature sensor connection end and the noise sensor connection end. Data acquisition board one and data acquisition board two are electrically connected to an external data analysis terminal to facilitate subsequent data analysis and processing, realize real-time monitoring of the escalator's operating status and fault status, and realize fault early warning.

[0008] In a further embodiment, the drive mechanism includes a drive motor and a reducer mounted on the truss body. The output end of the drive motor is connected to the reducer. The vibration sensor measuring point adjacent to the drive motor is perpendicular to the rotor of the drive motor. The vibration sensor monitors the vibration generated during the operation of the drive motor.

[0009] In a further embodiment, the reducer is provided with a reducer housing and a reducer base connected to the reducer housing on the outside. The vibration sensor located adjacent to the outside of the reducer housing and the reducer base is used to monitor the vibration generated by the reducer housing and the reducer base. The vibration sensor monitors the vibration generated by the reducer housing and the reducer base during operation.

[0010] In a further embodiment, the vibration sensor measuring points adjacent to the main drive wheel bearing and the ladder chain tensioner bearing are respectively perpendicular to the bearing housing of the main drive wheel bearing and the bearing housing of the ladder chain tensioner bearing, which facilitates the monitoring of vibrations generated during the operation of the main drive wheel bearing and the ladder chain tensioner bearing.

[0011] In a further embodiment, the truss body is also provided with a ladder-turning mechanism, and a noise sensor connected to the noise sensor connection end is provided on one side of the ladder-turning mechanism to facilitate the monitoring of noise generated during the operation of the ladder-turning mechanism.

[0012] In a further embodiment, the monitoring box is equipped with an alarm, which is electrically connected to the data acquisition board one and the data acquisition board two, and the alarm can be set to facilitate alarm operation.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: by using vibration sensors, infrared temperature sensors, ambient temperature sensors, and noise sensors in combination, the vibration generated by the drive mechanism, the main drive wheel bearing, and the step chain tension wheel bearing are monitored, as are the handrail belt and ambient temperature, and the noise generated by the drive shaft. The monitored vibration signals are transmitted to data acquisition board one through the vibration sensor connection terminal, and the monitored temperature and noise signals are transmitted to data acquisition board two through the temperature sensor connection terminal and the noise sensor connection terminal, which facilitates the subsequent data analysis terminal to analyze and process the data, realize real-time monitoring of the escalator's operating status and fault status, and achieve fault early warning. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the monitoring box of this utility model;

[0016] The attached diagram is labeled as follows: 1. Escalator main body; 2. Truss main body; 3. Handrail belt; 4. Drive mechanism; 5. Main drive wheel bearing; 6. Step chain tension wheel bearing; 7. Drive main shaft; 8. Monitoring box; 9. Main control board; 10. Data acquisition board one; 11. Vibration sensor connection terminal; 12. Data acquisition board two; 13. Noise sensor connection terminal; 14. Temperature sensor connection terminal; 15. Ambient temperature sensor connection terminal; 16. Alarm. Detailed Implementation

[0017] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

[0018] Please see Figure 1-2This utility model provides a technical solution: a fatigue monitoring device for railway station escalators, including an escalator body 1, a truss body 2 mounted on the escalator body 1, a handrail belt 3 mounted on the truss body 2, a drive mechanism 4, a main drive wheel bearing 5, a step chain tension wheel bearing 6, and a drive main shaft 7. A monitoring box 8 is provided on the escalator body 1, and a main control board 9 is provided inside the monitoring box 8. Data acquisition board one 10 and data acquisition board two 12 are electrically connected to the main control board 9. Data acquisition board one 10 is provided with a plurality of vibration sensor connection terminals 11, and data acquisition board two 12 is provided with a noise sensor connection terminal 13, a temperature sensor connection terminal 14, and an ambient temperature sensor connection terminal 15.

[0019] Vibration sensors connected to vibration sensor connection end 11 are provided on the outer sides of drive mechanism 4, main drive wheel bearing 5 and ladder chain tensioner bearing 6. The vibration sensors are used to monitor the vibration generated by drive mechanism 4, main drive wheel bearing 5 and ladder chain tensioner bearing 6 respectively.

[0020] The truss body 2 is equipped with an infrared temperature sensor and an ambient temperature sensor, which are respectively connected to the temperature sensor connection end 14 and the ambient temperature sensor connection end 15. The infrared temperature sensor and the ambient temperature sensor are used to monitor the handrail belt 3 and the ambient temperature, respectively.

[0021] The truss body 2 is also equipped with a noise sensor connected to the noise sensor connection end 13. The noise sensor is used to monitor the noise generated by the drive shaft 7. In conjunction with the vibration sensor, infrared temperature sensor, ambient temperature sensor and noise sensor, the vibration generated by the drive mechanism 4, the main drive wheel bearing 5 and the step chain tension wheel bearing 6 are monitored, as are the handrail belt 3 and the ambient temperature and the noise generated by the drive shaft 7. The monitored vibration signal is transmitted to the data acquisition board 10 through the vibration sensor connection end 11. The ambient temperature sensor is used to measure the ambient temperature and to compare and analyze the temperature of the handrail belt 3. The monitored temperature and noise signals are transmitted to the data acquisition board 2 12 through the temperature sensor connection end 14 and the noise sensor connection end 13. The data acquisition board 10 and the data acquisition board 2 12 are electrically connected to the external data analysis terminal to facilitate the subsequent data analysis and processing by the data analysis terminal, realize the real-time monitoring of the escalator's operating status and fault status, and realize fault early warning.

[0022] Data acquisition board 10 and data acquisition board 212 convert the acquired vibration, noise and temperature signals into digital signals (A / D converters) and send them to the data analysis terminal for intelligent analysis. The analysis results and important spectrum data are then uploaded to the maintenance center server via the backbone network for diagnostic verification and intelligent decision-making, and the data is applied and stored.

[0023] The data acquisition frequency of the vibration sensor, infrared temperature sensor, ambient temperature sensor, and noise sensor can be intelligently adjusted. Under normal circumstances, data is collected once every 10 seconds. When abnormal data occurs, the acquisition frequency of the corresponding sensor is increased, thereby accurately predicting the fault.

[0024] In a further embodiment, the drive mechanism 4 includes a drive motor and a reducer mounted on the truss body 2. The output end of the drive motor is connected to the reducer. The vibration sensor measuring point adjacent to the drive motor is perpendicular to the rotor of the drive motor. The vibration sensor monitors the vibration generated during the operation of the drive motor.

[0025] In a further embodiment, a reducer housing and a reducer base connected to the reducer housing are provided on the outside of the reducer housing and the reducer base. Vibration sensors adjacent to the outside of the reducer housing and the reducer base are used to monitor the vibration generated by the reducer housing and the reducer base. The vibration generated by the reducer housing and the reducer base during operation is monitored by the vibration sensors.

[0026] In a further embodiment, the vibration sensor measuring points adjacent to the main drive wheel bearing 5 and the ladder chain tensioner bearing 6 are perpendicular to the bearing housings of the main drive wheel bearing 5 and the ladder chain tensioner bearing 6, respectively, to facilitate the monitoring of vibrations generated during the operation of the main drive wheel bearing 5 and the ladder chain tensioner bearing 6.

[0027] In a further embodiment, the truss body 2 is also provided with a ladder flipping mechanism, and a noise sensor connected to the noise sensor connection end 13 is provided on one side of the ladder flipping mechanism to facilitate the monitoring of the noise generated during the operation of the ladder flipping mechanism.

[0028] In a further embodiment, the monitoring box 8 is equipped with an alarm 16, which is electrically connected to the data acquisition board 10 and the data acquisition board 2 12. The alarm 16 facilitates alarm operation.

[0029] Working principle: By combining vibration sensors, infrared temperature sensors, ambient temperature sensors, and noise sensors, the system monitors the vibrations generated by the drive mechanism 4, the main drive wheel bearing 5, and the step chain tension wheel bearing 6, as well as the handrail belt 3, ambient temperature, and noise generated by the drive shaft 7. The monitored vibration signals are transmitted to the data acquisition board 10 through the vibration sensor connection terminal 11, and the monitored temperature and noise signals are transmitted to the data acquisition board 2 12 through the temperature sensor connection terminal 14 and the noise sensor connection terminal 13. This facilitates subsequent data analysis and processing by the data analysis terminal, enabling real-time monitoring of the escalator's operating status and fault status, and providing fault early warning.

[0030] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A fatigue monitoring device for railway station escalators, comprising an escalator body (1), a truss body (2) mounted on the escalator body (1), a handrail belt (3) mounted on the truss body (2), a drive mechanism (4), a main drive wheel bearing (5), a step chain tensioner bearing (6), and a drive spindle (7), characterized in that: The escalator body (1) is equipped with a monitoring box (8), and the monitoring box (8) is equipped with a main control board (9). The main control board (9) is electrically connected to a data acquisition board one (10) and a data acquisition board two (12). The data acquisition board one (10) is equipped with several vibration sensor connection terminals (11), and the data acquisition board two (12) is equipped with a noise sensor connection terminal (13), a temperature sensor connection terminal (14), and an ambient temperature sensor connection terminal (15). Vibration sensors connected to the vibration sensor connection end (11) are provided on the outer side of the drive mechanism (4), the main drive wheel bearing (5) and the ladder chain tensioner bearing (6). The vibration sensors are used to monitor the vibration generated by the drive mechanism (4), the main drive wheel bearing (5) and the ladder chain tensioner bearing (6). The truss body (2) is provided with an infrared temperature sensor and an ambient temperature sensor that are respectively connected to the temperature sensor connection end (14) and the ambient temperature sensor connection end (15). The infrared temperature sensor and the ambient temperature sensor are used to monitor the handrail (3) and the ambient temperature, respectively. The truss body (2) is also provided with a noise sensor connected to the noise sensor connection end (13), and the noise sensor is used to monitor the noise generated by the drive spindle (7).

2. The fatigue monitoring device for railway station escalators according to claim 1, characterized in that: The drive mechanism (4) includes a drive motor and a reducer mounted on the truss body (2). The output end of the drive motor is connected to the reducer, and the direction of the vibration sensor measuring point adjacent to the drive motor is perpendicular to the rotor of the drive motor.

3. The fatigue monitoring device for railway station escalators according to claim 2, characterized in that: The reducer has a reducer housing and a reducer base connected to the reducer housing on the outside. The vibration sensor located near the outside of the reducer housing and the reducer base is used to monitor the vibration generated by the reducer housing and the reducer base.

4. The fatigue monitoring device for railway station escalators according to claim 1, characterized in that: The vibration sensor measuring points adjacent to the main drive wheel bearing (5) and the ladder chain tensioner bearing (6) are perpendicular to the bearing housing of the main drive wheel bearing (5) and the bearing housing of the ladder chain tensioner bearing (6), respectively.

5. The fatigue monitoring device for railway station escalators according to claim 1, characterized in that: The truss body (2) is also provided with a ladder flipping mechanism, and a noise sensor connected to the noise sensor connection end (13) is provided on one side of the ladder flipping mechanism.

6. The fatigue monitoring device for railway station escalators according to claim 1, characterized in that: The monitoring box (8) is equipped with an alarm (16), which is electrically connected to the data acquisition board one (10) and the data acquisition board two (12).

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