Elevator moving part health state monitoring device

Abstract

The utility model provides an elevator moving part health state monitoring device which is used for collecting vibration data of a rotating part of a key part of an elevator, the monitoring device comprises a three-axis acceleration sensor (4) and a magnetic base (3) connected with the three-axis acceleration sensor (4), and the bottom face of the magnetic base is attracted and fixed to the end face of a rotating shaft (2) of the rotating part (1). The top surface is connected with a three-axis acceleration sensor; the three-axis acceleration sensor is connected with a processing module in the power distribution cabinet through a communication link to upload collected data. The elevator vibration monitoring system can collect, process and upload vibration signals in the operation process of an elevator in real time.

Description

TECHNICAL FIELD

[0001] The utility model relates to elevator technical field especially a kind of elevator moving component health state monitoring device. BACKGROUND

[0002] The online monitoring and fault early warning of elevator operating state need to collect, process and upload the vibration signal when elevator is running in real time, since elevator often runs for a long time, how to design the monitoring device that can realize the above-mentioned function is a research direction. UTILITY MODEL CONTENT

[0003] The utility model provides a kind of elevator moving component health state monitoring device, can collect, process and upload the vibration signal when elevator is running in real time.

[0004] The utility model adopts the following technical scheme.

[0005] A kind of elevator moving component health state monitoring device, for the rotating component of elevator key position is vibrated data acquisition, the monitoring device includes triaxial acceleration sensor (4) and the magnetic base (3) connected therewith, the bottom surface of the magnetic base is fixed at the rotating shaft (2) end surface of rotating component (1) and is adsorbed, top surface and triaxial acceleration sensor;Triaxial acceleration sensor is connected with the processing module in switch board via communication link to upload acquisition data.

[0006] Triaxial acceleration sensor is connected with the processing module (5) in switch board via the communication link formed by data cable.

[0007] The processing module includes 4G transmission module connected with remote data transmission antenna (6).

[0008] The rotating component of elevator key position is the drive host, car counterweight sheave or counterweight sheave of elevator.

[0009] When rotating component is counterweight sheave, the X axis, Y axis of triaxial acceleration sensor is parallel to the radial direction of counterweight sheave axle end surface.

[0010] When rotating component is counterweight sheave, the Z axis of triaxial acceleration sensor is perpendicular to the axial direction of counterweight sheave axle end surface.

[0011] When rotating component is car counterweight sheave, the X axis, Y axis of triaxial acceleration sensor is parallel to the radial direction of car counterweight sheave axle end surface.

[0012] When rotating component is car counterweight sheave, the Z axis of triaxial acceleration sensor is perpendicular to the axial direction of car counterweight sheave axle end surface.

[0013] The power distribution cabinet (7) is fixed to the elevator counterweight iron of the elevator shaft by a mounting clamp, the elevator counterweight iron comprises two vertical channel steels (8), and a counterweight counter-rope wheel for balance adjustment in the running of the elevator is mounted above the elevator counterweight iron.

[0014] The mounting clamp comprises an aluminum alloy plate (10) in the middle and support seats (9) at two ends, the aluminum alloy plate is connected with the power distribution cabinet by fasteners to form a device support platform of the power distribution cabinet, and the support seats at two sides are respectively arranged in the grooves of the two channel steels of the elevator counterweight iron and are fixed by fasteners.

[0015] The utility model discloses a device for monitoring the running health state of elevator moving parts. The device is provided with a main control module and a three-axis acceleration sensor, and the bottom of the three-axis acceleration sensor is provided with a magnetic seat. The acceleration sensor module magnetic seat is adsorbed on the shaft end face of the rotating part or the metal shell of the moving part, and the running health state is monitored by real-time monitoring and analyzing the rotating shaft or metal shell vibration signal. The device can be used for monitoring the running health state of the traction machine, the traction wheel, the car roof counter-rope wheel and the counterweight counter-rope wheel, and when used for monitoring the counterweight counter-rope wheel, the fixed plate configured by the device can be used to improve the reliability.

[0016] The utility model can acquire the vibration signal of the key parts of the elevator (such as counterweight counter-rope wheel, car counter-rope wheel and driving host computer) in real time, utilize high-precision three-axis vibration sensor to capture subtle vibration change, and guarantee the quality and reliability of data through the filter and denoising function built-in the circuit of monitoring device.

[0017] The acquisition data of the utility model can be quickly transmitted to the remote server or upper computer through the 4G communication module, realizes the remote access and storage of data, and multiple encryption technology is adopted in the transmission process of the communication module, so as to ensure the transmission safety of data in the complex network environment.

[0018] In the utility model, the mounting clamp is designed to adopt a modular structure, mainly comprising a central aluminum alloy plate and support seats at two ends, aiming to provide a stable mounting basis for the hardware equipment of the elevator vibration online monitoring system; the clamp structure has high strength, stability and installation convenience, can adapt to the complex environment of the elevator shaft, especially under the condition that the elevator shaft vibration and temperature and humidity change greatly, can keep the long-term stable operation of the system hardware equipment.

[0019] The utility model discloses a mounting clamp's design fully considers the general structure of elevator counterweight iron, the stability of equipment installation and the complexity of elevator environment. Through reasonable utilization channel steel structure and combination high strength material, clamp ensures that this set elevator vibration on -line monitoring system can keep stable operation in the process of elevator operation. Meanwhile, the clamp design also takes into account the convenient installation and maintenance demand, ensures that system can long -term stably carry out data acquisition, processing and transmission, guarantees the safety and reliability of elevator operation. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model discloses further detailed explanation in combination with the drawings and specific embodiment:

[0021] ATTACHMENT Figure 1 It is the installation schematic drawing of three -axis acceleration sensor at rotating part;

[0022] ATTACHMENT Figure 2 It is the schematic drawing of distribution cabinet with mounting clamp fixed in the channel steel of elevator counterweight iron;

[0023] In the drawing: 1-rotating part, 2-rotating shaft, 3-magnetic base, 4-three -axis acceleration sensor, 5-processing module, 6-remote data transmission antenna; 7-distribution cabinet, 8-channel steel; 9-supporting seat; 10-aluminum alloy plate. SPECIFIC EMBODIMENT

[0024] As Figure 1 Shown, a kind of elevator moving part health state monitoring device, for the rotating part of elevator key position carries out vibration data acquisition, the monitoring device includes three-axis acceleration sensor 4 and the magnetic base 3 connected therewith, the bottom surface of the magnetic base is adsorbed and fixed at the rotating shaft 2 end surface of rotating part 1, top surface and three-axis acceleration sensor;Three-axis acceleration sensor is connected with the processing module in distribution cabinet via communication link to upload acquisition data.

[0025] The three-axis acceleration sensor is connected with the processing module 5 in distribution cabinet via the communication link formed by data cable.

[0026] The processing module includes 4G transmission module connected with remote data transmission antenna 6.

[0027] The rotating part of the elevator key position is the drive host computer of elevator, car counterweight sheave or counterweight sheave.

[0028] When rotating part is counterweight sheave, the X axis, Y axis of three-axis acceleration sensor are oriented in parallel with the radial direction of counterweight sheave axle end face.

[0029] When rotating part is counterweight sheave, the Z axis of three-axis acceleration sensor is oriented in perpendicular to the axial direction of counterweight sheave axle end face.

[0030] When the rotating component is the car counterweight sheave, the X-axis and Y-axis of the three-axis acceleration sensor are oriented in the radial direction parallel to the end surface of the wheel shaft of the car counterweight sheave.

[0031] When the rotating component is the car counterweight sheave, the Z-axis of the three-axis acceleration sensor is oriented in the axial direction perpendicular to the end surface of the wheel shaft of the car counterweight sheave.

[0032] As shown in Figure 2 The power distribution cabinet 7 is fixed to the elevator counterweight iron of the elevator shaft with a mounting clamp, the elevator counterweight iron includes two vertical channel steels 8, and a counterweight sheave for balance adjustment in the running of the elevator is installed above the elevator counterweight iron.

[0033] The mounting clamp includes an aluminum alloy plate 10 in the middle and support seats 9 at both ends, the aluminum alloy plate is connected with the power distribution cabinet with fasteners to form a device support platform of the power distribution cabinet, and the support seats on both sides are respectively placed in the grooves of the two channel steels of the elevator counterweight iron and fixed with fasteners.

[0034] Embodiment 1:

[0035] In this example, the processing module preferably adopts an industrial computer, and the power distribution cabinet and its internal power distribution board are important components of the system (elevator vibration monitoring system) for online monitoring of elevator vibration, responsible for the accommodation, protection and support of hardware devices. The design of both fully considers the needs of the complex environment in the elevator shaft, adopts 304 stainless steel material and modular layout, combines multiple protection measures and excellent heat dissipation performance, and provides reliable protection for the stable operation and convenient maintenance of the equipment.

[0036] Power distribution cabinet main body design: the power distribution cabinet main body adopts high-strength 304 stainless steel material, which provides long-term stable protection performance for the power distribution cabinet due to its excellent mechanical strength, corrosion resistance and durability. 304 stainless steel can effectively resist the corrosion of high humidity, high temperature difference and corrosive substances in the elevator shaft, while maintaining the shape and strength without deformation, suitable for long-term use in harsh environments.

[0037] To further improve the durability of the power distribution cabinet, the surface of the shell is treated with wire drawing to enhance the wear resistance and scratch resistance, and it is convenient for cleaning. The power distribution cabinet is designed as an integrated closed structure, and the front door is equipped with high-quality lock catches to ensure the safety of the equipment inside the cabinet body, and it is convenient for technicians to quickly check and maintain.

[0038] The right side of the power distribution cabinet is designed with two dedicated heat vents and air ducts, combined with the high thermal conductivity of stainless steel, forming an efficient heat dissipation system. It not only facilitates the extension of sensor cables and antennas from the power distribution box, but also serves as the main heat dissipation channel. The heat generated during equipment operation can be promptly removed through natural convection, especially for high-power devices such as processing modules and communication modules. The heat dissipation design effectively reduces the risk of overheating and improves the stability of equipment operation.

[0039] 2. Power distribution board design: The power distribution cabinet is equipped with a cast iron power distribution board with a thickness of 1.5mm, serving as a hardware device fixing platform, responsible for securely installing and providing effective support for the equipment. The power distribution board design is highly integrated with the layout of the power distribution cabinet, further enhancing the orderliness and stability of the internal hardware of the system. The power distribution board is fixed to the backplate of the power distribution cabinet through bolts.

[0040] Device layout: The power distribution cabinet adopts a modular layout inside, divided into multiple areas according to the functional needs of different hardware devices, providing a stable installation environment and good heat dissipation conditions for the equipment. The internal partitions are clear, and the wiring between devices is orderly, avoiding mutual interference between devices and reserving sufficient heat dissipation space.

[0041] Inside the power distribution cabinet, the left area is for placing the battery. The power distribution board is installed on the back of the right side of the power distribution cabinet, and other hardware devices are fixed on it.

[0042] The power distribution board is divided into multiple areas according to the functional needs of hardware devices, and is designed with standardized mounting holes and fixing grooves. Devices such as industrial computers, batteries, and 4G communication modules are fixed on the surface of the power distribution board through bolts and shock-absorbing washers, effectively avoiding displacement or loosening caused by vibration. The specific installation method of the power distribution board is as follows:

[0043] Bottom area of the power distribution board: Install industrial computer for data processing and heat dissipation.

[0044] Left side of the top area of the power distribution board: Install 24V to 12V adapter module and 2-in-6-out adapter module.

[0045] Right side of the top area of the power distribution board: Install 4g data transmission module, with antenna extending out from the right side heat vent, close to the interface position for convenient signal transmission and hardware connection.

[0046] The design of each area is reasonable, and all devices are fixed in the reserved hole positions through standard bolts or buckles, ensuring the stability and safety of the equipment in a vibrating environment.

[0047] The power distribution cabinet is installed and connected through the bottom standardized mounting holes and the special fixture aluminum alloy plate designed above, which is firmly connected to the channel steel structure of the elevator counterweight iron, ensuring that the power distribution cabinet will not shift or loosen in a vibrating environment. At the same time, the power distribution cabinet is designed with two heat dissipation holes to facilitate the extension of sensor cables and antennas from the closed power distribution cabinet to connect with the external environment.

[0048] Example 2:

[0049] In this example, through on-site investigation and measurement, combined with the specific environment of the elevator shaft, the aluminum alloy power distribution cabinet and the special fixture are carefully designed to ensure that the system can operate stably in harsh environments. Whether it is the safe fixation of hardware devices or the long-term stability of the system, it has been fully guaranteed, laying a solid foundation for the smooth operation of the elevator vibration online monitoring system.

[0050] In order to ensure that the elevator vibration online monitoring system can be stably and reliably installed on the counterweight iron, a special installation fixture is designed. The design of this fixture is specifically aimed at the structural characteristics of the elevator counterweight iron, which can fully utilize the space of the vertical channel steel at both ends of the counterweight iron to achieve firm fixation of the system hardware. Through precise structural design, the installation fixture ensures the stability of the system and avoids any loosening or displacement caused by vibration or external forces.

[0051] Through the two-side channel steel fixation method of the fixture, the equipment can be firmly fixed on the counterweight iron and tightly combined with the channel steel, forming a stable fixation structure. During installation, the fixture not only needs to ensure the firm connection between the equipment and the channel steel, but also needs to consider the normal operation of the elevator equipment. Therefore, the fixture is specially designed to cooperate with the counterweight rope wheel above the counterweight iron, ensuring that it will not interfere with the operation of the rope wheel, while effectively avoiding the impact of vibration on the equipment.

[0052] In order to enhance the stability and adaptability of the installation fixture, high-strength materials such as steel or aluminum alloy are used to ensure that it can withstand large vibrations and impacts during elevator operation. The installation fixture not only needs to resist mechanical impact from elevator operation, but also needs to ensure that the equipment does not loosen or deform during long-term use. Therefore, the fixture is designed with shockproof and corrosion-resistant design to enhance its long-term durability in harsh environments.

[0053] In addition, the installation fixture also considers the convenience of maintenance and repair. The fixture structure allows the system hardware to be quickly disassembled or adjusted when needed without the need to remove the entire equipment. This design greatly simplifies the later equipment inspection and maintenance work, providing convenience for system debugging and troubleshooting in daily operation. Especially in the case of regular inspection and maintenance of elevators, the system can be quickly disassembled and reinstalled, which will greatly improve the maintenance efficiency and reduce the equipment downtime.

[0054] In summary, the design of the special installation fixture fully considers the general structure of the elevator counterweight, the stability of equipment installation, and the complexity of the elevator environment. By reasonably utilizing the channel steel structure and combining high-strength materials, the fixture ensures that the elevator vibration online monitoring system can operate stably during the elevator operation. At the same time, the fixture design also takes into account the convenience of installation and maintenance, ensuring that the system can long-term and stably collect, process, and transmit data, and guarantee the safety and reliability of the elevator operation.

[0055] In this example, the design of the installation fixture adopts a modular structure, mainly composed of a central aluminum alloy plate and two support seats at both ends, aiming to provide a stable installation foundation for the hardware devices of the elevator vibration online monitoring system. The fixture structure has high strength, stability, and installation convenience, and can adapt to the complex environment of the elevator shaft, especially under the condition of large elevator shaft vibration and temperature and humidity changes, maintaining the long-term stable operation of the system hardware devices.

[0056] Aluminum alloy plate design of the installation fixture: The central aluminum alloy plate serves as the equipment support platform and is the core component of the entire installation fixture. The plate design not only considers the load-bearing requirements of the equipment, but also fully considers the convenience of installation and the stability of the structure. Through the precise arrangement of mounting holes, the aluminum alloy plate can be firmly connected with each hardware module (such as the power distribution cabinet, sensors, etc.) of the elevator vibration online monitoring system, ensuring stable installation of the equipment.

[0057] 1. Fixed hole design: The central part of the aluminum alloy plate is designed with 4 threaded holes for connecting and fixing the power distribution cabinet, ensuring the stable placement of the power distribution cabinet in the elevator shaft. In addition, multiple evenly distributed mounting holes are designed on both sides of the plate, which are precisely arranged according to the size and position of the actual hardware devices to ensure correct installation of each hardware module. At the same time, these hole designs also fully consider the heat dissipation requirements of the system equipment, ensuring that each component has enough space for effective heat dissipation to avoid equipment damage or performance degradation caused by overheating.

[0058] 2. Adapt to channel steel structure: The aluminum alloy plate is designed according to the groove width of the elevator counterweight channel steel, so that the plate can accurately fit the size of the channel steel. During installation, the two sides of the aluminum alloy plate are cleverly placed in the groove, and then fixed with the two support seats through the threaded holes, ensuring the tight connection and stability between the plate and the channel steel structure.

[0059] Support seat design of the installation fixture: The support seats at both ends of the power distribution cabinet are designed specially to ensure the stable connection between the power distribution cabinet and the elevator counterweight channel steel. The structure of the support seat is precisely calculated to ensure the reliability and safety of the entire fixture system.

[0060] 1. Fixing method: The bottom of each support seat is tightly fixed to the aluminum alloy bottom plate by four bolts. This multi-point connection design enhances the stability of the clamp, effectively preventing equipment displacement or loosening during elevator operation. The design of the support seat further considers the high-frequency vibration in the elevator shaft, so an anti-vibration design is adopted to ensure that the power distribution cabinet and all hardware devices remain stable in a vibrating environment.

[0061] 2. Triangular bolt hole arrangement: The front of the support seat is designed with three bolt holes arranged in an inverted triangular pattern, used for tight connection with the inner groove of the elevator counterweight channel steel. This design not only improves the anti-vibration performance of the clamp, but also enhances the compatibility of the clamp, which can adapt to different types of elevator channel steel structures, providing more flexible installation options.

[0062] 3. Adjustability: The support seat is connected to the channel steel through bolts, adopting an adjustable structure. During installation, the bolt connection method of the support seat can be fine-tuned according to the actual installation environment and location requirements. This design allows the clamp to adapt to different specifications of the elevator counterweight iron, providing convenience for equipment adjustment and ensuring the accuracy of the installation process and the stability of the system.

[0063] 4. Installation convenience and maintainability: The design of the installation clamp aims to improve the installation efficiency of the equipment and the convenience of later maintenance. By using bolt connection, the entire clamp system can be quickly installed in the narrow space of the elevator shaft. During installation, technicians only need to follow the pre-set installation hole position and bolt hole arrangement to easily fix the power distribution cabinet on the channel steel of the elevator counterweight iron.

[0064] During system operation, if equipment needs to be checked, adjusted or replaced, technicians can easily complete the operation by loosening the relevant bolts, avoiding the trouble of disassembling the entire installation clamp. In addition, the clamp design also ensures the rationality of the system equipment layout, making the later maintenance work more convenient, and the equipment maintenance personnel can quickly access and check each module of the elevator vibration monitoring system, reducing the time for fault handling and maintenance.

[0065] This set of installation clamp provides a reliable and stable installation solution for the elevator vibration online monitoring system by combining high-strength aluminum alloy plates and special support seats at both ends. Its modular design, anti-vibration design and convenient installation and maintenance characteristics enable the entire system to operate stably in the high-vibration and harsh environment of the elevator shaft for a long time, and provide reliable protection for elevator hardware equipment. This design not only improves the reliability and stability of the system, but also optimizes the maintenance efficiency of the equipment, ensuring that the elevator vibration monitoring system can provide strong data support for the safe operation of the elevator.

[0066] Example 3:

[0067] In this example, the signal acquisition module is the foundation of the elevator vibration online monitoring system, bearing the most critical function in the entire system - real-time acquisition of elevator key component vibration data. The module is composed of three-axis vibration acceleration sensors, industrial computers, and batteries, each part bearing independent but closely coordinated tasks to ensure the system can run stably and efficiently in the elevator shaft environment.

[0068] The three-axis vibration acceleration sensor is the core component of the signal acquisition module, responsible for real-time acquisition of three-axis vibration acceleration values of elevator key components such as counterweight sheave, car sheave, and drive main machine. The working principle of the sensor is based on an accelerometer, which senses the tiny changes in the surface vibration of the device, converts these changes into electrical signals, and transmits them to the industrial computer. To ensure the accuracy and stability of data acquisition, the sampling frequency of the sensor must not be lower than 1kHz, which can accurately capture the tiny vibration changes during elevator operation, especially those abnormal signals that may indicate equipment failure. High sampling rate can ensure real-time monitoring of every vibration fluctuation, helping the system accurately identify the health status of the equipment.

[0069] Considering the complex installation environment in the elevator shaft, special attention should be paid to preventing external interference and signal distortion during sensor installation. Therefore, the fixation method of the sensor is particularly important. During installation, the sensor is firmly installed on the surface of the elevator key component through magnetic attraction devices or special fixing devices, avoiding installation loosening or falling off due to vibration or external force. This installation method not only ensures stable operation of the device, but also reduces the problem of inaccurate or lost data caused by changes in sensor position.

[0070] Since stable power supply is often not available in the elevator shaft, the signal acquisition module also needs to be equipped with a battery to ensure normal operation of the device in a power-free environment. The battery provides sufficient power support for the three-axis vibration acceleration sensor and the industrial computer, ensuring long-term operation of the system. To meet the power needs of the system, the battery needs to have a large capacity and a long service life, and a 24V lithium battery is usually chosen as the power source. This battery not only provides sufficient energy, but also ensures the reliability and stability of the system in the complex environment of the elevator shaft. The design of the battery needs to meet the power requirements of the entire signal acquisition module device, and it needs to have certain temperature resistance and impact resistance to adapt to the high temperature, humidity, and vibration environment of the elevator shaft.

[0071] In this example, the signal acquisition module (processing module) supports at least three-way sensor signal input, which can simultaneously monitor the vibration status of multiple elevator components. In this way, the system can simultaneously monitor multiple key components of the elevator, further improving the visibility of the elevator's running status and timely discovering potential fault risks.

[0072] The design of the signal acquisition module fully considers the stability and durability in the harsh working conditions of the elevator shaft, ensuring efficient and accurate vibration signal acquisition during long-term use.

[0073] In this example, through the equipped 4G data transmission module and 4G data transmission gateway, the data is transmitted through wireless communication technology, and the processed data is quickly and accurately transmitted to the cloud platform and the host computer.

[0074] The 4G module supports low-latency and high-bandwidth wireless transmission, ensuring the stability and efficiency of signal transmission in the elevator shaft environment. Especially during elevator operation, the 4G module can overcome interference and signal weaknesses in the elevator shaft, ensuring that data can be transmitted in real time and without error to the cloud platform and host computer.

Claims

1. An elevator moving parts health monitoring device for collecting vibration data from rotating parts of key locations in an elevator, characterized by: The monitoring device comprises a three-axis acceleration sensor (4) and a magnetic base connected thereto, the bottom surface of the magnetic base is fixedly adsorbed at the rotating shaft end surface of the rotating part (1), and the top surface is connected with the three-axis acceleration sensor; the three-axis acceleration sensor is connected with the processing module in the power distribution cabinet through a communication link to upload collected data.

2. An elevator moving component health monitoring device according to claim 1, characterized in that: The three-axis acceleration sensor is connected with the processing module in the power distribution cabinet through a communication link formed by a data cable.

3. An elevator moving component health monitoring device according to claim 1, characterized in that: The processing module comprises a 4G transmission module connected with a remote data transmission antenna (6).

4. The elevator moving component health monitoring device of claim 1, wherein: The rotating part of the key part of the elevator is a drive main machine, a car counterweight sheave or a counterweight sheave.

5. The elevator moving component health monitoring device of claim 1, wherein: When the rotating part is the counterweight sheave, the X-axis and Y-axis of the three-axis acceleration sensor are oriented in the radial direction parallel to the shaft end surface of the counterweight sheave.

6. An elevator moving component health monitoring device according to claim 1, characterized by: When the rotating part is the counterweight sheave, the Z-axis of the three-axis acceleration sensor is oriented in the axial direction perpendicular to the shaft end surface of the counterweight sheave.

7. The elevator moving component health monitoring apparatus of claim 1, wherein: When the rotating part is the car counterweight sheave, the X-axis and Y-axis of the three-axis acceleration sensor are oriented in the radial direction parallel to the shaft end surface of the car counterweight sheave.

8. The elevator moving component health monitoring device of claim 1, wherein: When the rotating part is the car counterweight sheave, the Z-axis of the three-axis acceleration sensor is oriented in the axial direction perpendicular to the shaft end surface of the car counterweight sheave.

9. The elevator moving component health monitoring apparatus of claim 1, wherein: The power distribution cabinet is fixed to the elevator counterweight iron of the elevator shaft by a mounting clamp, the elevator counterweight iron comprises two vertical channel steels, and a counterweight sheave for balance adjustment during elevator operation is installed above the elevator counterweight iron.

10. An elevator moving component health monitoring device according to claim 9, characterized by: The mounting clamp comprises an aluminum alloy plate in the middle and support seats at both ends, the aluminum alloy plate is connected with the power distribution cabinet by fasteners to form a device support platform of the power distribution cabinet, and the support seats on both sides are respectively placed in the grooves of the two channel steels of the elevator counterweight iron and fixed by fasteners.

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