Machine master damping platform device, elevator system and control method

Abstract

The application discloses a kind of traction machine active vibration reduction platform devices including holder base, damping support component, attitude sensing module and intelligent control module.Damping support component is set between holder base and installation base, including air spring unit and damping unit;Attitude sensing module is set on holder base, for collecting vibration parameters and attitude data;Intelligent control module is electrically connected with each component, for controlling the working state of damping support component according to vibration parameters and attitude data.The application can adjust damping characteristics in real time according to vibration parameters, has good inhibitory effect on wide-band vibration, while realizing remote monitoring and predictive maintenance, improves the safety and reliability of traction machine operation.

Description

Technical Field

[0001] This invention relates to the field of elevator technology, specifically to a traction machine active vibration damping platform device, an elevator system including the device, and a control method for the device. Background Technology

[0002] The traction machine is the core power component of the elevator system, typically mounted on the load-bearing structure of the elevator machine room via a base. During operation, the traction machine generates vibrations of varying frequencies and amplitudes. These vibrations are transmitted to the building structure through the base, affecting not only the smoothness of elevator operation and passenger comfort but also potentially causing fatigue damage to the building structure, and in severe cases, compromising elevator safety.

[0003] In the existing technology, the vibration reduction and installation of traction machines mainly have the following problems: First, passive vibration isolation has limited effectiveness. Traditional rubber pad or spring vibration isolation devices are passive vibration isolation devices, which can only suppress vibrations in specific frequency bands and cannot adapt to the dynamic changes in vibration frequency and amplitude during traction machine operation. When the vibration frequency is close to the natural frequency of the building structure, resonance may occur, which may amplify the vibration effect.

[0004] Second, it lacks leveling capabilities. The traction machine mounting base typically uses a fixed structure, making it impossible to dynamically adjust the installation level. After long-term operation, foundation settlement or structural deformation may cause the traction machine to tilt, affecting the uniformity of force distribution on the traction sheave, accelerating wire rope wear, and even leading to safety accidents.

[0005] Third, intelligent integration is challenging. With the development of smart elevator technology, higher demands are placed on the collection and uploading of traction machine operation data. Traditional elevator bases cannot provide standardized data interfaces, making it difficult to connect to a smart elevator management platform for remote monitoring and intelligent operation and maintenance.

[0006] Fourth, the level of intelligence is low. Existing traction machine bases lack vibration monitoring and data analysis functions, making it impossible to monitor the traction machine's operating status in real time. Vibration anomalies are often only detected after a fault occurs, missing the opportunity for preventative maintenance and increasing repair costs and downtime. Summary of the Invention

[0007] The purpose of this invention is to provide an active vibration reduction platform device for traction machines, an elevator system and a control method, which can adjust the vibration reduction characteristics in real time according to vibration parameters, and has a good suppression effect on vibrations in a wide frequency band, while realizing remote monitoring and predictive maintenance.

[0008] To solve the above-mentioned technical problems, the present invention provides an active vibration reduction platform device for traction machines, comprising: a gimbal base, a vibration reduction support assembly, an attitude sensing module, and an intelligent control module; The gimbal base is used to install the traction machine; the vibration damping support assembly is disposed between the gimbal base and the mounting foundation, and includes an air spring unit and a damping unit; the attitude sensing module is disposed on the gimbal base and is used to collect vibration parameters and attitude data; the intelligent control module is electrically connected to the vibration damping support assembly, the automatic leveling assembly and the attitude sensing module, and is used to control the working state of the vibration damping support assembly according to the vibration parameters and attitude data.

[0009] Preferably, the air spring unit includes an airbag, an air chamber, a pressure sensor, and a pressure regulating valve; the airbag has a multi-layer composite structure, including an inner rubber layer, a middle cord reinforcement layer, and an outer protective layer; the air chamber is sealed to the airbag to form a closed air cavity; the pressure sensor is used to monitor the air pressure value in the air chamber in real time; the pressure regulating valve is controlled by the intelligent control module to regulate the air pressure.

[0010] Preferably, the damping unit is a magnetorheological damper, comprising a piston cylinder, a magnetic piston head, a piston rod, and a magnetorheological fluid; the piston cylinder is fixed on the mounting base, and the piston rod is fixed on the gimbal base; the magnetic piston head is disposed within the piston cylinder and is movable within the piston cylinder; the piston cylinder is filled with magnetorheological fluid; the intelligent control module changes the magnetic field strength by changing the coil current passing through the magnetic piston head, thereby changing the viscosity of the magnetorheological fluid, to achieve continuous adjustment of the damping coefficient.

[0011] Preferably, the traction machine active vibration damping platform device includes an automatic leveling component, which is disposed between the vibration damping support component and the gimbal base for adjusting the levelness of the gimbal base; the intelligent control module is electrically connected to the automatic leveling component for controlling the working state of the automatic leveling component according to the vibration parameters and attitude data.

[0012] Preferably, the automatic leveling component includes a leveling support leg, a telescopic drive mechanism, and a horizontal adjustment mechanism; one end of the leveling support leg is connected to the vibration damping support component, and the other end is provided with a telescopic drive mechanism; the horizontal adjustment mechanism is disposed between the leveling support leg and the gimbal base, and includes an X-axis adjustment mechanism and a Y-axis adjustment mechanism, which are used to adjust the levelness of the gimbal base in the X-axis direction and the Y-axis direction, respectively.

[0013] Preferably, the leveling mechanism adopts a worm gear transmission structure and has a self-locking function.

[0014] Preferably, the telescopic drive mechanism is an electric push rod that can extend an additional support length during an earthquake or when the safety clamp brakes, providing anti-overturning torque.

[0015] Preferably, the attitude sensing module includes a triaxial accelerometer, a tilt sensor, a displacement sensor, and a velocity sensor; The triaxial accelerometer is used to detect vibration acceleration in the X, Y, and Z axes; the tilt sensor is used to detect the pitch and roll angles of the gimbal base; the displacement sensor is used to detect the three-dimensional displacement of the gimbal base relative to the mounting base; and the velocity sensor is used to detect vibration velocity.

[0016] Preferably, the attitude sensing module further includes a vibration frequency analysis unit for performing spectral analysis on the vibration acceleration signal to identify the dominant frequency and mode shape of the vibration.

[0017] Preferably, the intelligent control module includes a central processing unit, a memory, a signal conditioning circuit, a communication interface, and a power supply module; The central processing unit has a built-in adaptive vibration reduction algorithm, which can automatically adjust the air pressure value of the air spring unit and the damping coefficient of the damping unit according to the vibration parameters. The signal conditioning circuit includes a low-pass filter, an anti-aliasing filter, and an analog-to-digital converter, used for preprocessing sensor signals; the communication interface is used for communication connection with an external intelligent elevator management platform.

[0018] Preferably, the adaptive vibration reduction algorithm adopts a control strategy that combines fuzzy control and neural networks, which can automatically learn and optimize vibration reduction parameters based on historical vibration data.

[0019] Preferably, it also includes an anti-overturning locking mechanism, which includes an overturning sensor, a locking actuator, and a locking arm; the overturning sensor is used to detect earthquake signals or safety clamp action signals; when the overturning sensor detects a signal, the intelligent control module issues a locking command, and the locking actuator drives the locking arm to extend, rigidly connecting the gimbal base to the mounting foundation.

[0020] Preferably, the overturning sensor includes an earthquake early warning sensor and a safety gear action detection sensor; the earthquake early warning sensor uses a P-wave acceleration sensor, which can detect earthquake signals before the arrival of destructive S-waves; the safety gear action detection sensor determines whether the safety gear has activated by detecting changes in the tension of the traction steel wire rope or the deceleration signal of the car.

[0021] Preferably, the locking actuator is a hydraulic lock, including a locking cylinder, a locking core, and a hydraulic circuit; the locking cylinder is fixed on the mounting base; one end of the locking arm is connected to the piston rod of the locking cylinder, and the other end is provided with the locking core; under normal conditions, the locking arm is in the retracted position, and the locking core is not in contact with the gimbal base; when a locking command is received, the hydraulic circuit is pressurized, pushing the locking arm to extend, so that the locking core is engaged in the locking groove provided on the gimbal base.

[0022] Preferably, the airbag is a segmented design, including an upper airbag and a lower airbag, which are detachably connected by a connecting ring.

[0023] Preferably, a vibration isolation trench is provided between the vibration damping support component and the mounting foundation to block the lateral propagation of vibration to the building structure; or, a vibration damping isolation layer is provided between the gimbal base and the vibration damping support component, consisting of a rubber pad layer and a metal spring array, to block the propagation path of high-frequency vibration.

[0024] Preferably, it also includes a secondary vibration isolation layer disposed below the vibration damping support assembly, comprising elastic pads and vibration isolation springs, for further attenuating the vibration energy transmitted to the building structure.

[0025] The present invention also provides an elevator system, including: a traction machine, a traction machine active vibration damping platform device, and a smart elevator management platform; the traction machine is installed on the traction machine active vibration damping platform device; the smart elevator management platform is communicatively connected to the intelligent control module of the traction machine active vibration damping platform device, and is used to remotely monitor the operating parameters and vibration data of the traction machine, perform abnormal alarms, predict lifespan, and generate maintenance work orders.

[0026] Preferably, the intelligent elevator management platform includes a vibration monitoring module, an anomaly alarm module, a life prediction module, and a maintenance work order generation module; The vibration monitoring module is used to display the vibration parameter curves, spectrum diagrams, and historical trend diagrams of the traction machine in real time. The abnormal alarm module is used to automatically determine the vibration state according to the preset alarm threshold, and send alarm information when the vibration parameters exceed the threshold. The life prediction module is used to analyze the changing trend of vibration data based on machine learning algorithms and predict the remaining service life of key components. The maintenance work order generation module is used to automatically generate maintenance work orders based on vibration anomaly alarms and life prediction results, and assign them to the corresponding maintenance personnel.

[0027] The present invention also provides a control method for the aforementioned active vibration damping platform device for a traction machine, comprising: real-time acquisition of vibration parameters and attitude data of the gimbal base; calculation of a target air pressure value and a target damping coefficient based on the vibration parameters; adjustment of the air pressure of the air spring unit based on the target air pressure value; adjustment of the damping coefficient of the damping unit based on the target damping coefficient; and control of the automatic leveling component to adjust the levelness of the gimbal base based on the attitude data.

[0028] Preferably, calculating the target air pressure value and the target damping coefficient based on the vibration parameters includes: When the detected vibration frequency is less than a preset first threshold, the air pressure of the air spring unit is increased to improve the stiffness, while the damping coefficient of the damping unit is decreased to avoid over-damping. When the detected vibration frequency is greater than a preset second threshold, the air pressure of the air spring unit is reduced to decrease the stiffness, while the damping coefficient of the damping unit is increased to enhance the vibration attenuation effect.

[0029] Preferably, controlling the automatic leveling component to adjust the levelness of the gimbal base according to the attitude data includes: calculating the adjustment amount of the X-axis adjustment mechanism and the Y-axis adjustment mechanism based on the real-time angle value fed back by the tilt sensor; controlling the leveling support leg to perform fine-tuning actions until the pitch angle and roll angle of the gimbal base are both less than the preset leveling accuracy threshold.

[0030] Compared with the prior art, the beneficial effects of the present invention include: 1. Excellent Active Vibration Reduction: Through the synergistic effect of the air spring unit and damping unit, combined with the adaptive adjustment algorithm of the intelligent control module, the vibration reduction characteristics can be adjusted in real time according to the vibration parameters, showing good suppression effect on vibrations across a wide frequency band. Compared with passive vibration isolation, the active vibration reduction system can reduce the vibration transmission rate by more than 30%, significantly reducing the propagation of traction machine vibration to the building structure.

[0031] 2. High accuracy of automatic leveling: The automatic leveling component adopts closed-loop feedback control, which can control the levelness adjustment accuracy of the gimbal base within ±0.05°, solving the problem of traction machine tilting caused by foundation settlement or structural deformation, ensuring the uniformity of force on the traction wheel, and extending the service life of the wire rope and traction wheel.

[0032] 3. High level of intelligence: The attitude perception module collects vibration parameters and attitude data in real time, the intelligent control module processes and analyzes the data, and the data is uploaded to the intelligent elevator management platform through the communication module. The platform can perform remote monitoring, abnormal alarms, life prediction and maintenance work order generation, realizing predictive maintenance of the traction machine.

[0033] 4. Convenient installation and maintenance: The modular design allows for independent installation and replacement of each component, reducing installation difficulty and maintenance costs. The intelligent control module supports remote parameter configuration and firmware upgrades, facilitating future functional expansion and performance optimization.

[0034] 5. High anti-overturning safety: Through the anti-overturning locking mechanism, the gimbal base can be quickly and rigidly connected to the installation foundation under extreme conditions such as earthquakes or safety clamp braking, effectively preventing the traction machine from overturning and improving the safety of the equipment under extreme conditions. Attached Figure Description

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Figure 1 This is a schematic diagram of the active vibration damping platform device for the traction machine in Example 1; Figure 2 This is a schematic diagram of the active vibration damping platform device for the traction machine in Example 2. Detailed Implementation

[0036] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can fully understand other advantages and technical effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through different specific embodiments, and the details in this specification can also be applied based on different viewpoints, with various modifications or changes made without departing from the overall design concept of the invention. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other. The following exemplary embodiments of the present invention can be implemented in many different forms and should not be construed as being limited to the specific embodiments set forth herein. It should be understood that these embodiments are provided to make the disclosure of the present invention thorough and complete, and to fully convey the technical solutions of these exemplary embodiments to those skilled in the art. Example 1

[0037] like Figure 1 As shown, the active vibration reduction platform device for the traction machine in this embodiment includes a gimbal base, a vibration reduction support assembly, an attitude sensing module, and an intelligent control module.

[0038] The gimbal base is a frame-type steel structure, including a base plate, reinforcing ribs, and a mounting surface. The base plate is a rectangular steel plate with a thickness of 10mm to 30mm, made of carbon structural steel. The reinforcing ribs are located below the base plate and arranged in a grid pattern to enhance the overall rigidity of the gimbal base. The mounting surface is located above the base plate and is used to mount the traction machine. Multiple mounting holes are provided on the mounting surface for fixing the traction machine to the gimbal base with bolts.

[0039] The vibration damping support assembly is disposed between the gimbal base and the mounting foundation, and includes four air spring units and four damping units. The mounting foundation is the floor of the elevator machine room or the building's load-bearing structure.

[0040] Each air spring unit includes an air bladder, an air chamber, a pressure sensor, and a pressure regulating valve. The air bladder has a multi-layered composite structure, including an inner rubber layer, a middle cord reinforcement layer, and an outer protective layer, providing excellent airtightness and durability. The air chamber is sealed to the air bladder, forming a closed air cavity. The pressure sensor monitors the air pressure within the air chamber in real time. The pressure regulating valve is connected to an external air source and an exhaust valve, and is controlled by the intelligent control module to achieve precise pressure regulation. The maximum load capacity of each air spring unit is 1000 kg to 3500 kg.

[0041] The damping unit is a magnetorheological damper, comprising a piston cylinder, a magnetic piston head, a piston rod, and a magnetorheological fluid. The piston cylinder is fixed to a mounting base, and the piston rod is fixed to a gimbal base. The magnetic piston head is disposed within the piston cylinder and can move up and down within it. The piston cylinder is filled with the magnetorheological fluid. The intelligent control module changes the magnetic field strength by altering the coil current passing through the magnetic piston head, thereby changing the viscosity of the magnetorheological fluid and achieving continuous adjustment of the damping coefficient. The damping force adjustment range of the damping unit is 10N to 2000N, with a response time of less than 1ms.

[0042] The four air spring units and four damping units are arranged in a matrix below the gimbal base, with a set of vibration damping units at each corner. Height sensors are installed between adjacent air spring units to detect the support height at each point, enabling precise sensing of the gimbal base's attitude.

[0043] As a preferred variation of this embodiment, the airbag can adopt a segmented design, including an upper airbag body and a lower airbag body, which are detachably connected by a connecting ring. This segmented design allows only the damaged segment to be replaced when the airbag needs to be replaced, eliminating the need for a complete replacement and reducing maintenance costs. Furthermore, each air spring unit can be equipped with a height control valve. When the load-bearing weight of the gimbal base changes (such as when replacing it with a different traction machine), the height control valve automatically adjusts the air pressure to maintain a preset working height.

[0044] The attitude sensing module is mounted on the gimbal base and includes a three-axis accelerometer, a tilt sensor, a displacement sensor, and a velocity sensor.

[0045] The triaxial accelerometer is used to detect vibration acceleration in the X, Y, and Z axes, with a range of ±2g, a resolution of 0.001g, and a sampling frequency of 1000Hz. The tilt sensor is used to detect the pitch and roll angles of the gimbal base, with a measurement range of ±10° and a resolution better than 0.001°. The displacement sensor is used to detect the three-dimensional displacement of the gimbal base relative to the mounting foundation, with a measurement accuracy of 0.01mm. The velocity sensor is used to detect vibration velocity, with a range of 0 to 500mm / s.

[0046] The attitude sensing module also includes a vibration frequency analysis unit, used to perform spectral analysis on the vibration acceleration signal to identify the dominant frequency and mode shape of the vibration. This unit uses the Fast Fourier Transform (FFT) algorithm and can complete the spectrum calculation within 100ms.

[0047] The intelligent control module includes a central processing unit, a memory, a signal conditioning circuit, a communication interface, and a power supply module.

[0048] The central processing unit (CPU) employs a 32-bit ARM Cortex-M4 microcontroller with a clock speed of 168MHz and a built-in digital signal processing (DSP) instruction set. The CPU incorporates an adaptive vibration reduction algorithm and a predictive maintenance algorithm. The adaptive vibration reduction algorithm uses a control strategy combining fuzzy control and neural networks, enabling it to automatically learn and optimize vibration reduction parameters based on historical vibration data.

[0049] The memory includes 256KB Flash and 64KB RAM for storing program code, configuration parameters, and historical data. The signal conditioning circuit includes a low-pass filter, an anti-aliasing filter, and an analog-to-digital converter (ADC) for preprocessing sensor signals. The communication interface includes an RS485 interface, a CAN interface, an Ethernet interface, and a 4G / 5G communication module, supporting multiple communication protocols and enabling connection to a smart elevator management platform. The power module converts external AC power into DC power required by each component and features overvoltage protection, overcurrent protection, and surge suppression.

[0050] This embodiment may also optionally include an anti-tipping locking mechanism, including a tilt sensor, a locking actuator, and a locking arm.

[0051] The overturning sensor includes an earthquake early warning sensor and a safety gear activation detection sensor. The earthquake early warning sensor uses a P-wave accelerometer, which can detect earthquake signals before the arrival of destructive S-waves, providing a warning time of 0.5 to 2 seconds. The safety gear activation detection sensor determines whether the safety gear has activated by detecting changes in the tension of the traction steel wire rope or the deceleration signal of the car.

[0052] The locking mechanism is a hydraulic lock, comprising a locking cylinder, a locking core, and a hydraulic circuit. The locking cylinder is fixed to the mounting base. One end of the locking arm is connected to the piston rod of the locking cylinder, and the other end is equipped with the locking core. Under normal conditions, the locking arm is in the retracted position, and the locking core is not in contact with the pan-tilt base.

[0053] When the overturning sensor detects a seismic signal or the safety clamp activates, the intelligent control module immediately issues a locking command. The hydraulic circuit of the locking actuator is pressurized, pushing the locking arm to extend and causing the lock cylinder to engage with the locking groove on the gimbal base, rigidly connecting the gimbal base to the mounting foundation. Simultaneously, the intelligent control module controls the telescopic drive mechanism to extend an additional stroke, providing a vertically upward supporting torque to effectively prevent the traction machine from overturning.

[0054] After the earthquake ends or the safety clamp resets, the intelligent control module issues an unlocking command to release the pressure in the hydraulic circuit. The locking arm then retracts under the action of the reset spring, completing the unlocking process.

[0055] This embodiment may also optionally include a vibration isolation structure. For example, a vibration isolation trench with a width of 50mm to 100mm and a depth of 100mm to 150mm may be provided between the vibration damping support assembly and the mounting foundation to block the lateral propagation of vibration to the building structure. A vibration damping isolation layer composed of a rubber pad layer and a metal spring array may be provided between the gimbal base and the vibration damping support assembly to block the propagation path of high-frequency vibration.

[0056] For elevator machine rooms in super high-rise buildings, a secondary vibration isolation layer, including elastic pads and vibration isolation springs, can be added below the vibration damping support components to further attenuate the vibration energy transmitted to the building structure. The elastic pads are made of high-damping rubber material with a natural frequency designed to be between 3Hz and 5Hz. The vibration isolation springs are helical steel springs with a damping ratio controlled between 0.05 and 0.1. Alternatively, a floating floor structure can be used to isolate the machine room floor from the building structure, blocking the path of vibration transmission through the floor. The floating floor consists of a reinforced concrete slab, an elastic pad layer, and vibration isolation trenches, with flexible sealing material installed around the perimeter of the room. Through these comprehensive vibration isolation measures, the vibration energy transmitted to the building structure can be reduced by more than 40dB. Example 2

[0057] like Figure 2As shown, this embodiment is basically the same as Embodiment 1, except that it also includes an automatic leveling component. This automatic leveling component is disposed between the vibration damping support component and the gimbal base, and is used to adjust the levelness of the gimbal base. The intelligent control module is electrically connected to the automatic leveling component and is used to control the working state of the automatic leveling component based on attitude data. This embodiment is suitable for elevator applications requiring dynamic adjustment of installation levelness, especially in situations where foundation settlement or structural deformation may occur after long-term operation.

[0058] The automatic leveling assembly includes four leveling support legs, four telescopic drive mechanisms, and a horizontal adjustment mechanism.

[0059] One end of the leveling support leg is connected to the vibration damping support assembly, and the other end is equipped with the telescopic drive mechanism. The telescopic drive mechanism is an electric push rod with a rated thrust of 5000N to 10000N and a stroke of 50mm to 100mm. During an earthquake or when the safety brake is applied, the telescopic drive mechanism can extend an additional support length to provide anti-overturning moment.

[0060] The horizontal adjustment mechanism is located between the leveling support leg and the gimbal base, and includes an X-axis adjustment mechanism and a Y-axis adjustment mechanism, used to adjust the levelness of the gimbal base in the X-axis and Y-axis directions, respectively. The horizontal adjustment mechanism adopts a worm gear transmission structure with a self-locking function to ensure the stability of the posture after leveling.

[0061] When the tilt sensor detects that the pitch or roll angle of the gimbal base exceeds a preset range, the intelligent control module calculates the adjustment amount of the X-axis and Y-axis adjustment mechanisms based on the real-time angle value fed back by the tilt sensor, and controls the leveling support legs to perform fine-tuning actions until both the pitch and roll angles are less than the preset leveling accuracy threshold of 0.05°. Because the leveling mechanism uses a worm gear transmission structure with a self-locking function, the posture remains stable after leveling, requiring no continuous power supply.

[0062] Furthermore, when the anti-overturning locking mechanism is also provided in this embodiment, under extreme conditions such as earthquakes or safety clamp braking, the intelligent control module not only controls the locking execution mechanism to drive the locking arm to extend and rigidly connect the gimbal base to the installation foundation, but also controls the telescopic drive mechanism to extend an additional stroke to provide a vertically upward supporting torque. This works in conjunction with the anti-overturning locking mechanism to further enhance the anti-overturning capability.

[0063] The other structures, connections, and working principles of this embodiment are the same as those of Embodiment 1, and will not be repeated here. Example 3

[0064] This embodiment provides an elevator system, including a traction machine, a traction machine active vibration damping platform device as described in Embodiment 1, and a smart elevator management platform.

[0065] The traction machine is mounted on the gimbal base of the traction machine active vibration damping platform device. The operating parameters and vibration data of the traction machine are collected and processed by the intelligent control module, and then uploaded to the smart elevator management platform via a 4G / 5G communication network. The smart elevator management platform analyzes and processes the received data, generates various reports and early warning information, and pushes them to elevator management and maintenance personnel.

[0066] The intelligent elevator management platform includes a vibration monitoring module, an anomaly alarm module, a life prediction module, and a maintenance work order generation module.

[0067] The vibration monitoring module displays the vibration parameter curves, spectrum diagrams, and historical trend diagrams of each elevator traction machine in real time, and supports filtering and exporting data by time range. Vibration data includes peak vibration acceleration, RMS value, vibration frequency, and vibration direction.

[0068] The abnormal alarm module automatically determines the vibration status based on a preset alarm threshold. When the vibration parameter exceeds the threshold, alarm information is sent to relevant personnel through various means such as SMS, telephone, and mobile APP push notifications. The alarm levels are divided into three levels: alert, warning, and emergency, each corresponding to a different response strategy.

[0069] The life prediction module uses machine learning algorithms to analyze the changing trends of vibration data and predict the remaining service life of key components. The predicted components include traction machine bearings, traction sheaves, wire ropes, and vibration damping elements. When the predicted remaining life is lower than a preset threshold, a preventative maintenance work order is automatically triggered.

[0070] The maintenance work order generation module automatically generates maintenance work orders based on vibration anomaly alarms and lifespan prediction results, and assigns them to the corresponding maintenance personnel. The work order includes a fault description, recommended measures, required spare parts, and estimated working hours. After completing maintenance, the maintenance personnel fill out a maintenance record on their mobile terminal, forming a closed-loop management system.

[0071] This embodiment also supports remote parameter configuration and firmware upgrade functions. Maintenance personnel can remotely modify the control parameters of the intelligent control module, such as alarm thresholds, leveling accuracy, and vibration reduction strategies, through the smart elevator management platform, and complete system optimization without being physically present.

[0072] The elevator system in this embodiment can achieve the following functions: (1) Monitor the vibration status of the traction machine in real time and issue an early warning in the early stage of abnormal vibration to avoid the fault from worsening; (2) Optimize the elevator operation scheduling strategy based on vibration data to reduce energy consumption and extend component life; (3) Establish a health record for the traction machine through long-term data accumulation to provide a basis for decision-making on equipment upgrading; (4) Supports remote diagnosis and parameter adjustment, reducing the number of on-site maintenance and improving maintenance efficiency. Example 4

[0073] This embodiment provides a control method for the active vibration damping platform device of the traction machine described in Embodiment 1, including a vibration damping control step and a leveling control step.

[0074] The vibration reduction control steps are as follows: In the initial state, the intelligent control module initializes the air pressure value of the air spring unit and the damping coefficient of the damping unit according to preset parameters. The attitude sensing module begins to collect vibration parameters and attitude data in real time and transmits the data to the intelligent control module through the communication interface.

[0075] During normal operation, the intelligent control module calculates the target air pressure value and target damping coefficient based on the vibration parameters, using the following specific strategy: When a low vibration frequency (less than 5 Hz) is detected, the air pressure of the air spring unit is increased to improve stiffness, while the damping coefficient of the damping unit is decreased to avoid over-damping.

[0076] When a high vibration frequency (greater than 20Hz) is detected, the air pressure of the air spring unit is reduced to decrease the stiffness, while the damping coefficient of the damping unit is increased to enhance the vibration attenuation effect.

[0077] The intelligent control module controls the air pressure regulating valve to operate according to the calculated target air pressure value, thereby achieving precise adjustment of the air pressure in the air chamber; and changes the coil current through the magnetic piston head according to the calculated target damping coefficient, thereby achieving continuous adjustment of the viscosity of the magnetorheological fluid.

[0078] The adaptive vibration reduction algorithm adopts a control strategy that combines fuzzy control and neural networks. It can automatically learn and optimize vibration reduction parameters based on historical vibration data, so as to continuously optimize the vibration reduction effect.

[0079] The leveling control steps are as follows: During leveling operation, the intelligent control module calculates the adjustment amount of the X-axis adjustment mechanism and the Y-axis adjustment mechanism based on the real-time angle value fed back by the tilt sensor, and controls the leveling support leg to perform fine-tuning actions until the pitch angle and the roll angle are both less than the preset leveling accuracy threshold of 0.05°.

[0080] Because the leveling mechanism uses a worm gear transmission structure with a self-locking function, the posture can remain stable after leveling, without the need for continuous power supply.

[0081] The anti-overturning control steps are as follows: When the overturning sensor detects a seismic signal or a safety clamp activation signal, the intelligent control module immediately issues a locking command: (1) Pressurize the hydraulic circuit of the locking actuator to push the locking arm out, so that the lock core is engaged in the locking groove on the gimbal base, and rigidly connect the gimbal base to the mounting foundation; (2) Control the telescopic drive mechanism to extend an additional stroke to provide a vertically upward supporting torque.

[0082] After the earthquake ends or the safety clamp resets, the intelligent control module issues an unlocking command to release the pressure in the hydraulic circuit. The locking arm then retracts under the action of the reset spring, completing the unlocking process.

[0083] The present invention has been described in detail above through specific embodiments and examples, but these are not intended to limit the invention. Many modifications and improvements can be made by those skilled in the art without departing from the principles of the invention, and these should also be considered within the scope of protection of the present invention.

Claims

1. A traction machine active vibration damping platform device, characterized in that, include: Gimbal base, vibration damping support components, attitude sensing module, and intelligent control module; The gimbal base is used to mount the traction machine; The vibration damping support assembly is disposed between the gimbal base and the mounting foundation, and includes an air spring unit and a damping unit; The attitude sensing module is mounted on the gimbal base and is used to collect vibration parameters and attitude data. The intelligent control module is electrically connected to the vibration damping support component and the attitude sensing module, and is used to control the working state of the vibration damping support component according to the vibration parameters and attitude data.

2. The active vibration damping platform device for a traction machine according to claim 1, characterized in that, The air spring unit includes an air bag, an air chamber, a pressure sensor, and a pressure regulating valve; The airbag has a multi-layer composite structure, including an inner rubber layer, a middle cord reinforcement layer, and an outer protective layer; the air chamber is sealed to the airbag to form a closed air cavity; the air pressure sensor is used to monitor the air pressure value in the air chamber in real time; the air pressure regulating valve is controlled by the intelligent control module to regulate the air pressure.

3. The active vibration damping platform device for a traction machine according to claim 2, characterized in that, The damping unit is a magnetorheological damper, comprising a piston cylinder, a magnetic piston head, a piston rod, and a magnetorheological fluid; The piston cylinder is fixed on the mounting base, and the piston rod is fixed on the gimbal base; the magnetic piston head is disposed in the piston cylinder and can move within the piston cylinder; the piston cylinder is filled with magnetorheological fluid. The intelligent control module changes the magnetic field strength by altering the coil current passing through the magnetic piston head, thereby changing the viscosity of the magnetorheological fluid and achieving continuous adjustment of the damping coefficient.

4. The active vibration damping platform device for a traction machine according to claim 1, characterized in that, Includes an automatic leveling component, which is disposed between the vibration damping support component and the gimbal base, for adjusting the levelness of the gimbal base; The intelligent control module is electrically connected to the automatic leveling component and is used to control the working state of the automatic leveling component according to the vibration parameters and attitude data.

5. The active vibration damping platform device for a traction machine according to claim 4, characterized in that, The automatic leveling component includes leveling support legs, a telescopic drive mechanism, and a horizontal adjustment mechanism; One end of the leveling support leg is connected to the vibration damping support assembly, and the other end is provided with a telescopic drive mechanism; The leveling mechanism is located between the leveling support leg and the gimbal base, and includes an X-axis adjustment mechanism and a Y-axis adjustment mechanism, which are used to adjust the levelness of the gimbal base in the X-axis direction and the Y-axis direction, respectively.

6. The active vibration damping platform device for a traction machine according to claim 5, characterized in that, The leveling mechanism adopts a worm gear transmission structure and has a self-locking function.

7. The active vibration damping platform device for a traction machine according to claim 5, characterized in that, The telescopic drive mechanism is an electric push rod that can extend an additional support length during an earthquake or when the safety clamp is applied, providing anti-overturning torque.

8. The active vibration damping platform device for a traction machine according to claim 1, characterized in that, The attitude sensing module includes a three-axis accelerometer, a tilt sensor, a displacement sensor, and a velocity sensor; The triaxial accelerometer is used to detect vibration acceleration in the X, Y, and Z axes; the tilt sensor is used to detect the pitch and roll angles of the gimbal base; the displacement sensor is used to detect the three-dimensional displacement of the gimbal base relative to the mounting base; and the velocity sensor is used to detect vibration velocity.

9. The active vibration damping platform device for a traction machine according to claim 8, characterized in that, The attitude sensing module also includes a vibration frequency analysis unit, which is used to perform spectral analysis on the vibration acceleration signal to identify the dominant frequency and mode shape of the vibration.

10. The active vibration damping platform device for a traction machine according to claim 1, characterized in that, The intelligent control module includes a central processing unit, a memory, a signal conditioning circuit, a communication interface, and a power supply module; The central processing unit has a built-in adaptive vibration reduction algorithm, which can automatically adjust the air pressure value of the air spring unit and the damping coefficient of the damping unit according to the vibration parameters. The signal conditioning circuit includes a low-pass filter, an anti-aliasing filter, and an analog-to-digital converter, used for preprocessing sensor signals; the communication interface is used for communication connection with an external intelligent elevator management platform.

11. The active vibration damping platform device for a traction machine according to claim 10, characterized in that, The adaptive vibration reduction algorithm adopts a control strategy that combines fuzzy control and neural networks, which can automatically learn and optimize vibration reduction parameters based on historical vibration data.

12. The active vibration damping platform device for a traction machine according to claim 1, characterized in that, It also includes an anti-tipping locking mechanism, which includes a tipping sensor, a locking actuator, and a locking arm; The tilt sensor is used to detect seismic signals or safety clamp action signals; When the tilt sensor detects a signal, the intelligent control module issues a locking command, and the locking actuator drives the locking arm to extend, rigidly connecting the gimbal base to the mounting foundation.

13. The active vibration damping platform device for a traction machine according to claim 12, characterized in that, The overturning sensor includes an earthquake early warning sensor and a safety clamp action detection sensor; The earthquake early warning sensor uses a P-wave accelerometer, which can detect earthquake signals before the arrival of destructive S-waves. The safety gear action detection sensor determines whether the safety gear has activated by detecting changes in the tension of the traction steel wire rope or the deceleration signal of the car.

14. The active vibration damping platform device for a traction machine according to claim 12, characterized in that, The locking mechanism is a hydraulic lock, including a locking cylinder, a lock core, and a hydraulic circuit; The locking cylinder is fixed on the mounting base; one end of the locking arm is connected to the piston rod of the locking cylinder, and the other end is provided with the lock cylinder; Under normal conditions, the locking arm is in the retracted position, and the lock cylinder is not in contact with the pan-tilt base; When a locking command is received, the hydraulic circuit is pressurized, pushing the locking arm to extend and causing the lock cylinder to engage with the locking groove on the gimbal base.

15. The active vibration damping platform device for a traction machine according to claim 2, characterized in that, The airbag is a segmented design, including an upper airbag and a lower airbag, which are detachably connected by a connecting ring.

16. The active vibration damping platform device for a traction machine according to claim 1, characterized in that, A vibration isolation trench is provided between the vibration damping support assembly and the installation foundation to block the lateral propagation of vibration to the building structure; Alternatively, a vibration damping isolation layer, consisting of a rubber pad layer and a metal spring array, is provided between the gimbal base and the vibration damping support assembly to block the propagation path of high-frequency vibrations.

17. The active vibration damping platform device for a traction machine according to claim 1, characterized in that, It also includes a secondary vibration isolation layer, which is disposed below the vibration damping support assembly and includes elastic pads and vibration isolation springs, for further attenuating the vibration energy transmitted to the building structure.

18. An elevator system, characterized in that, include: Traction machine, traction machine active vibration damping platform device and intelligent elevator management platform; The traction machine active vibration damping platform device is the traction machine active vibration damping platform device according to any one of claims 1-16, and the traction machine is installed on the traction machine active vibration damping platform device; The intelligent elevator management platform is connected to the intelligent control module of the traction machine active vibration reduction platform device, and is used to remotely monitor the operating parameters and vibration data of the traction machine, perform abnormal alarms, predict lifespan, and generate maintenance work orders.

19. The elevator system according to claim 18, characterized in that, The intelligent elevator management platform includes a vibration monitoring module, an anomaly alarm module, a life prediction module, and a maintenance work order generation module. The vibration monitoring module is used to display the vibration parameter curves, spectrum diagrams, and historical trend diagrams of the traction machine in real time. The abnormal alarm module is used to automatically determine the vibration state according to the preset alarm threshold, and send alarm information when the vibration parameters exceed the threshold. The life prediction module is used to analyze the changing trend of vibration data based on machine learning algorithms and predict the remaining service life of key components. The maintenance work order generation module is used to automatically generate maintenance work orders based on vibration anomaly alarms and life prediction results, and assign them to the corresponding maintenance personnel.

20. A control method for the active vibration damping platform device of the traction machine as described in claim 4, characterized in that, include: The vibration parameters and attitude data of the gimbal base are collected in real time. Calculate the target air pressure value and target damping coefficient based on the vibration parameters; Adjust the air pressure of the air spring unit according to the target air pressure value, and adjust the damping coefficient of the damping unit according to the target damping coefficient; The automatic leveling component is controlled to adjust the levelness of the gimbal base based on the attitude data.

21. The control method for the traction machine active vibration damping platform device according to claim 20, characterized in that, The calculation of the target air pressure value and target damping coefficient based on the vibration parameters includes: When the detected vibration frequency is less than a preset first threshold, the air pressure of the air spring unit is increased to improve the stiffness, while the damping coefficient of the damping unit is decreased to avoid over-damping. When the detected vibration frequency is greater than a preset second threshold, the air pressure of the air spring unit is reduced to decrease the stiffness, while the damping coefficient of the damping unit is increased to enhance the vibration attenuation effect.

22. The control method for the active vibration damping platform device of the traction machine according to claim 20, characterized in that, Controlling the automatic leveling component to adjust the horizontality of the gimbal base based on the attitude data includes: Based on the real-time angle value fed back by the tilt sensor, calculate the adjustment amount of the X-axis adjustment mechanism and the Y-axis adjustment mechanism; The leveling support legs are controlled to perform fine-tuning actions until the pitch and roll angles of the gimbal base are both less than the preset leveling accuracy threshold.

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