Intelligent control system and traction machine system

Abstract

The application discloses an intelligent control system and a traction machine system, which comprises a data acquisition layer, a remote monitoring and data analysis layer and a remote interaction module; the data acquisition layer comprises a sensor network module and a fault code reading module; the sensor network module is used for reading data of sensors arranged on an elevator to realize parameter acquisition; the fault code reading module is used for acquiring elevator state codes in real time; the remote monitoring and data analysis layer comprises an intelligent analysis module; the intelligent analysis module analyzes parameters collected by the sensor network module based on a neural network model to obtain elevator state information; and the remote interaction module remotely transmits the elevator state information analyzed by the intelligent analysis module.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of elevator hoisting machines, in particular to an intelligent control system and a hoisting machine system. BACKGROUND

[0002] The existing elevator control system components are all arranged in the control cabinet, resulting in a large volume of the control cabinet, occupying more shaft space, making the installation environment with limited shaft space cause great difficulty to the design, arrangement and later maintenance of the elevator, and increasing the cost. At the same time, the existing elevator control system has low intelligence, and the fault monitoring mainly relies on manual inspection, lacking comprehensive real-time analysis of the running state. Manual inspection is limited by manpower and time, and it is difficult to cover all potential fault points, and it is dependent on experience and is easily affected by subjective factors, and cannot capture early fault signals such as small vibrations and temperature abnormalities of the equipment, resulting in late fault discovery. The traditional control system cannot realize early fault perception and remote monitoring, resulting in high operation and maintenance cost and low equipment reliability, which cannot meet the current intelligent and green energy-saving needs. SUMMARY

[0003] Therefore, the present application provides an intelligent control system and a hoisting machine system to solve the problem that the traditional control system cannot realize early fault perception and remote monitoring.

[0004] In a first aspect, the present application provides an intelligent control system, comprising:

[0005] A data acquisition layer comprising a sensor network module and a fault code reading module; the sensor network module is used to read the data of the sensors arranged on the elevator, realize parameter acquisition, and reflect the dynamic running state of the elevator; the fault code reading module is used to obtain the elevator state code in real time to directly reflect the abnormal state of the internal components of the elevator;

[0006] A remote monitoring and data analysis layer comprising an intelligent analysis module and a remote interaction module; the intelligent analysis module analyzes the parameters collected by the sensor network module based on a neural network model to obtain elevator state information, the elevator state information comprising elevator fault prediction information and elevator optimal running information; the remote interaction module is used to remotely transmit the elevator state analyzed by the intelligent analysis module.

[0007] The above intelligent control system, through the sensors deployed on each component of the elevator, collects the dynamic running parameters of the elevator equipment in real time, reflecting the running state of the equipment from the physical layer. The fault code reading module directly obtains the abnormal state code of the internal components of the elevator equipment, reflecting the internal abnormalities of the elevator equipment from the logical layer. The present application combines the sensor network module and the fault code reading module to form a multi-dimensional monitoring system, avoiding the one-sidedness of a single data source, and ensuring the comprehensive perception ability of the elevator state.

[0008] The intelligent analysis module analyzes the parameters collected by the sensor network module based on a neural network model. Through learning and training of a large amount of historical data, the model can identify abnormal patterns and trends in the parameters, thereby obtaining elevator status information, including elevator fault prediction information and elevator optimal operation information. The elevator fault prediction information is used to predict possible elevator faults, discover potential elevator faults in advance, avoid the occurrence of faults, and reduce maintenance costs and downtime. The elevator optimal operation information is used to provide optimal solutions for the operation mode of the elevator.

[0009] The remote interaction module remotely transmits the elevator status information analyzed by the intelligent analysis module, which can send the information to a remote monitoring center or the devices of relevant management personnel, thereby realizing remote monitoring and management of the elevator. The management personnel can conveniently learn about the operation status and fault conditions of the elevator in a timely manner, so as to make decisions and take corresponding measures in a timely manner.

[0010] The above intelligent control system collects dynamic operation status data and abnormal status data of the elevator through the data acquisition layer, analyzes and processes the data by the remote monitoring and data analysis layer, and finally realizes remote monitoring, fault prediction, and process control of the elevator, thereby improving the safety and reliability of the elevator operation.

[0011] In an optional embodiment, the sensor network module is configured to read data of a current sensor, a voltage sensor, a temperature sensor, a displacement sensor, and / or a vibration acceleration sensor arranged on the elevator.

[0012] In an optional embodiment, the remote monitoring and data analysis layer further includes a data storage and computing module, which is constructed based on an Internet of Things architecture, supports concurrent access of multiple Internet of Things devices, and is configured to store the dynamic operation status data and abnormal status data acquired by the data acquisition layer. The data storage and computing module adopts a time series database configured to manage time series data collected at a high frequency by the device.

[0013] The above technical solution has the following beneficial effects: The data storage and computing module is based on the elastic architecture of the Internet of Things, and can cover the centralized monitoring needs of large buildings, communities, and even city-level elevator networks. The openness of the Internet of Things architecture and the flexibility of the time series database make the present application have strong expansibility. In the future, new types of sensors, new analysis functions, or external systems can be easily connected, ensuring that the system can adapt to technological development and changes in user needs for a long time.

[0014] In a second aspect, the present application provides a traction machine system, comprising a traction machine and an intelligent control system; the traction machine comprises a traction machine assembly, a motor assembly and a controller assembly, the motor assembly is coaxially connected with the traction machine assembly, and the controller assembly is arranged on the motor assembly; the intelligent control system is integrally arranged on the controller assembly.

[0015] In an optional embodiment, the controller assembly comprises a controller housing and a control board; the control board is arranged in the controller housing; the control board comprises a master control board and an interface board connected with each other, the intelligent control system is integrally arranged on the master control board, and an expansion function interface is arranged on the interface board for connecting the sensor network module and the remote interaction module.

[0016] In an optional embodiment, the motor assembly comprises a motor housing, a motor shaft, a motor stator assembly and a motor rotor assembly; the motor shaft is rotationally arranged in the motor housing, the front end of the motor shaft is coaxially connected with the traction machine assembly, the motor stator assembly is fixedly arranged in the motor housing, an accommodating cavity is axially formed in the motor stator assembly, the motor rotor assembly is arranged in the accommodating cavity and coaxially connected with the motor shaft, and an air gap is formed between the motor rotor assembly and the motor stator assembly. In an optional embodiment, an encoder is connected to the motor assembly, and the controller assembly and the encoder are located on the same side of the motor assembly.

[0017] The above technical solution has the following beneficial effects: the controller assembly is directly arranged on the motor assembly and located on the same side of the encoder, which greatly shortens the signal transmission distance between the encoder, the motor assembly and the controller assembly, reduces the length of the signal line exposed to the complex electromagnetic environment, and thus reduces the influence of electromagnetic interference on the stability of high / low level signals.

[0018] In an optional embodiment, the encoder comprises an encoder rotating part, an encoder outer ring and an encoder bracket; a positioning hole is formed in the rear end surface of the motor shaft, a positioning shaft is arranged in the positioning hole, and the encoder rotating part is fixedly arranged on the positioning shaft; the encoder outer ring is coaxially arranged with the encoder rotating part and located at the periphery of the encoder rotating part, the encoder outer ring is in interference fit with the encoder bracket, and the encoder bracket is detachably arranged at the rear end of the motor housing; the controller housing is detachably arranged at the rear end of the encoder bracket; and the output lines of the motor assembly and the encoder are connected to the interface board.

[0019] The beneficial effects of the above technical solutions are: because the controller assembly is arranged on the same side of the encoder, the electrical signal detected by the encoder outer ring is directly transmitted to the controller assembly through a short-distance line. Because the coaxiality of the encoder rotating part and the motor shaft is high and the position of the encoder outer ring is stable, the accuracy and stability of the signal are guaranteed, and the controller assembly can accurately calculate the real-time speed, position and other key parameters of the motor, thereby realizing accurate control of the elevator traction machine.

[0020] In an optional embodiment, a reducer assembly is further arranged between the traction machine assembly and the motor assembly, and the reducer assembly comprises:

[0021] A reducer housing is detachably arranged at the front end of the motor housing;

[0022] A reducer input gear is coaxially connected to the output shaft end of the motor assembly;

[0023] A reducer output gear is coaxially connected to the input shaft end of the traction machine assembly;

[0024] A plurality of reducer double gears are rotationally arranged in the reducer housing, and each reducer double gear comprises a first planetary gear and a second planetary gear, the first planetary gear and the second planetary gear are coaxially connected through a connecting shaft, each first planetary gear is circumferentially arranged at the periphery of the reducer input gear and engaged with the reducer input gear, and each second planetary gear is circumferentially arranged at the periphery of the reducer output gear and engaged with the reducer output gear.

[0025] The beneficial effects of the above technical solutions are: the reducer adopts coaxial, planetary and parallel shaft reduction structures to reduce the axial installation space and improve system efficiency. The reducer is a parallel shaft reducer with a planetary structure, which is different from the traditional planetary reduction box. The reducer of the present application does not have the outer gear structure of the planetary reduction box, has lower cost and lower noise than the planetary reduction box; and the reducer of the present application can withstand greater force and is less likely to be damaged when facing larger loads, and is suitable for working scenes with higher load capacity requirements.

[0026] In an optional embodiment, the traction machine assembly comprises:

[0027] A traction machine base is detachably arranged at the front end of the reducer housing;

[0028] A traction machine shaft is rotationally arranged at both ends in the traction machine base;

[0029] A traction wheel is connected to the traction machine shaft, and a winding groove is arranged on the outer side wall of the traction wheel.

[0030] In an alternative embodiment, the front section of the motor shaft extends forwardly out of the motor housing and is fixedly connected with the input gear of the speed reducer; the rear section of the traction machine shaft extends rearwardly out of the traction machine base and is fixedly connected with the output gear of the speed reducer.

[0031] A stepped hole is formed in the rear end surface of the traction machine shaft, and the front end of the motor shaft is inserted into the stepped hole and is concentrically positioned with the traction machine shaft by a bearing.

[0032] In an alternative embodiment, the front end of the traction machine base is provided with a brake, which has a rotating part and a braking part, the rotating part is coaxially connected with the traction machine shaft, and the braking part is used to brake the rotating part. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0034] Figure 1 A structural schematic diagram of a traction machine system provided by the present application;

[0035] Figure 2 A plan view of a traction machine system provided by the present application;

[0036] Figure 3 A sectional view of a traction machine system provided by the present application;

[0037] Figure 4 A partial sectional view of a traction machine system provided by the present application;

[0038] Figure 5 A first view structural schematic diagram of the inside of a speed reducer assembly of a traction machine system provided by the present application;

[0039] Figure 6 A second view structural schematic diagram of the inside of a speed reducer assembly of a traction machine system provided by the present application;

[0040] Figure 7 An exploded view of a controller assembly of a traction machine system provided by the present application;

[0041] Figure 8 A structural schematic diagram of a rotor baffle in a traction machine system provided by the present application;

[0042] Figure 9A plan view of a motor rotor assembly in a traction machine system provided by the present application;

[0043] Figure 10 A magnet steel arrangement view of a motor rotor assembly in a traction machine system provided by the present application;

[0044] Figure 11 A schematic view of arrangement of a counterweight on a baffle body in a traction machine system provided by the present application;

[0045] Figure 12 A schematic view of a structure of a motor assembly in a traction machine system provided by the present application;

[0046] Figure 13 A schematic view of a structure of a controller circuit in a traction machine system provided by the present application;

[0047] Figure 14 A schematic view of an internal interface of an interface board of a controller circuit structure in a traction machine system provided by the present application;

[0048] Figure 15 A schematic view of an external interface of an interface board of a controller circuit structure in a traction machine system provided by the present application.

[0049] Explanation of reference numerals:

[0050] 1. brake, 11. first bolt, 12. spline board;

[0051] 2. traction machine assembly, 21. front end cover of traction machine, 22. traction wheel, 221. winding groove, 23. connecting shaft, 24. rear end cover of traction machine, 25. front bearing of traction machine, 26. shaft of traction machine, 261. stepped hole, 27. first flat key, 28. rear bearing of traction machine, 29. bottom plate of traction machine, 210. fifth bolt, 211. side cover plate, 212. upper cover plate, 214. through hole, 215. fifth nut, 216. sixth bolt, 217. seventh bolt;

[0052] 3. reducer assembly, 31. front housing of reducer, 32. rear housing of reducer, 33. double gear of reducer, 331. first planetary gear, 332. second planetary gear, 34. output gear of reducer, 35. input gear of reducer, 36. second bolt, 37. second flat key, 38. tapered bearing;

[0053] 4, motor assembly, 41, motor shaft, 42, motor stator assembly, 43, positioning shaft, 44, encoder, 441, encoder rotating part, 442, encoder outer ring, 443, encoder bracket, 45, motor rotor assembly, 451, rotor baffle, 4511, baffle body, 4512, counterweight hole, 4513, counterweight, 4514, bolt, 4515, mounting key, 452, rotor core, 4521, magnetic steel slot, 453, magnetic steel, 455, pressure ring, 47, bearing, 48, fourth bolt, 411, motor front bearing, 412, motor rear bearing, 414, positioning hole;

[0054] 5, controller assembly, 51, controller housing, 511, ventilation hole, 52, control panel. DETAILED DESCRIPTION

[0055] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0056] According to the embodiments of the present application, in a first aspect, an intelligent control system is provided, and a controller adopts the intelligent control system to realize multi-parameter acquisition and remote monitoring functions, and the core architecture is divided into a data acquisition layer and a remote monitoring and data analysis layer.

[0057] The data acquisition layer includes a sensor network module and a fault code reading module. The sensor network module is configured to read data of sensors arranged on the elevator, and realize parameter acquisition to reflect the dynamic operation state of the elevator. The fault code reading module is configured to acquire the elevator state code in real time to directly reflect the abnormal state of the internal components of the elevator. More specifically, the sensor network module is configured to read data of current sensors and / or voltage sensors and / or temperature sensors and / or displacement sensors and / or vibration acceleration sensors arranged on the elevator.

[0058] The sensor network module is connected with various sensors arranged on the elevator, and is responsible for reading the data collected by the sensors. By collecting these data, various parameters of the elevator during operation, such as temperature, speed, vibration, etc., can be obtained, so as to comprehensively reflect the dynamic operation state of the elevator and provide basic data for subsequent fault analysis and prediction. The sensor network collects physical parameters of the equipment in real time through current / voltage, temperature, vibration acceleration, etc. sensors, and these data are a direct mapping of the health state of the equipment.

[0059] The fault code reading module obtains the status code of the elevator in real time. During the operation of each device of the elevator, when an abnormality occurs in the internal components of the device, a corresponding status code will be generated. By reading these status codes, the module can directly reflect the abnormal state of the internal components of the elevator device, quickly locate possible problems in the elevator, and facilitate timely maintenance measures.

[0060] The fault code reading module obtains the status code through the built-in register of the controller. These codes are structured data generated by the system based on preset logic (such as temperature thresholds, signal loss), directly indicating the explicit failure type of the device. For example, when the brake is not fully released, the system will generate a code that clearly points to "brake abnormality", providing a failure label for the intelligent analysis module, which is used for training the supervised learning model.

[0061] As an important part of the elevator, the traction machine is mainly responsible for power transmission and power transmission to drive the elevator to run. In this embodiment, by deploying sensors (such as temperature, vibration, and speed sensors) on the traction machine, real-time collection of device dynamic operation parameters (such as temperature changes, vibration frequencies, and speed fluctuations) is achieved, reflecting the device running state from the physical layer. Through the fault code reading module, the abnormal state code (such as overload, short circuit, and communication failure code) of the internal components of the traction machine (such as motor, bearing, and control system) is directly obtained, reflecting the internal abnormality of the device from the logical layer. This embodiment combines the sensor network module and the fault code reading module to form a multi-dimensional monitoring system of "physical parameters + logical codes", avoiding the one-sidedness of a single data source, and ensuring the comprehensive perception ability of the traction machine state.

[0062] Among them, the remote monitoring and data analysis layer includes an intelligent analysis module and a remote interaction module.

[0063] The intelligent analysis module analyzes the parameters collected by the sensor network module based on a neural network model. Through learning and training on a large amount of historical data, elevator state information is obtained, including elevator fault prediction information and elevator optimal operation information. This model can identify abnormal patterns and trends in parameters, thereby obtaining fault information on the elevator and predicting possible faults of the traction machine, discovering potential faults of the elevator in advance, avoiding the occurrence of faults, and reducing maintenance costs and downtime. The elevator optimal operation information can be obtained by analyzing the real-time or historical data of the sensors through the model, which can optimize the elevator operation process when no fault occurs, such as user demand and energy consumption related information of the operation strategy.

[0064] More specifically, based on the LSMT neural network model analysis of temperature / vibration trends, predictive maintenance can be performed, such as predicting bearing wear and other failures. The intelligent analysis module uses the LSMT neural network model to deeply analyze the time series data collected by the sensor (such as the trend of vibration frequency over time). The LSTM model is good at capturing long-term dependencies in time series, and can identify "normal-abnormal" patterns through historical data training to predict potential failures (such as bearing wear, motor overheating, etc.) in advance. Compared with the traditional periodic maintenance mode, this predictive maintenance can reduce downtime caused by sudden failures, avoid resource waste caused by over-maintenance, and reduce the risk of failure expansion.

[0065] The remote interaction module is used to remotely transmit the elevator state information analyzed by the intelligent analysis module, which can send these information to the remote monitoring center or the device of the relevant management personnel, realizing the remote monitoring and management of the elevator. It is convenient for the management personnel to timely understand the running state and fault condition of the elevator, so as to make decisions and take corresponding measures in time. Even if the elevator components are deployed in scattered scenes (such as elevator machine rooms of multiple buildings), the operation and maintenance personnel can also centrally manage through a unified platform without the need for on-site inspection; fault information can be directly sent to the person in charge, shortening the discovery and processing time; historical fault information can be used for optimizing model training (improving prediction accuracy) or summarizing equipment maintenance rules. The remote interaction module provides a Web / mobile HMI interface, supports real-time parameter visualization, alarm pushing (SMS / email), and remote start-stop control.

[0066] The traditional method only relies on manual experience or single-point sensors, and the fault positioning accuracy is low. The present application realizes accurate positioning of faults through the fusion mechanism of "sensor network + fault code + intelligent analysis", the sensor network provides the physical track, reflecting how the fault occurs, and the fault code provides the system tag, clearly indicating the location of the fault. The intelligent analysis module correlates the double-source data through the LSMT model, improving the positioning accuracy.

[0067] Traditional elevator maintenance requires manual on-site inspection. The present application breaks through the space limit through the remote interaction module, and the sensor network and fault code data are uploaded to the cloud in real time, so that the operation and maintenance personnel can check the device state (such as motor speed, reducer oil temperature) through the Web / mobile HMI interface; fault warning is pushed through SMS / email / APP, without the need for on-site troubleshooting; multiple devices can be centrally monitored, reducing labor input.

[0068] The above intelligent control system collects the operation data and fault information of the traction machine through the data acquisition layer, and then analyzes and processes these data through the remote monitoring and data analysis layer, finally realizing remote monitoring, fault prediction and process control of the traction machine, improving the safety and reliability of the traction machine operation.

[0069] In some embodiments, the remote monitoring and data analysis layer further comprises a data storage and computing module, which is built based on an Internet of Things (IoT) architecture, for supporting concurrent access of multiple IoT devices and for storing dynamic operating state data and abnormal state data acquired by the data acquisition layer.

[0070] The IoT architecture has multiple functions such as device access, data processing, and security management. With the help of this architecture, the system can utilize the infrastructure and service capabilities of the IoT platform to achieve efficient, stable, and secure IoT application development and deployment.

[0071] Supporting concurrent access of multiple devices means that the system can handle connection requests from multiple devices simultaneously. In the IoT scenario, there are usually a large number of devices that need to access the system, such as sensors and intelligent terminals. This system allows these devices to access simultaneously, ensuring that they can all transmit data normally without causing access failures or system crashes due to excessive device numbers.

[0072] Sampling data refers to data collected by devices at certain time intervals during operation, such as temperature, humidity, and pressure data collected by sensors. Historical fault data is data generated when a device fails, recording information such as the time, phenomenon, and related parameters of the failure. The system stores this data for subsequent analysis, query, and use.

[0073] Traditional monitoring systems can only manage a single device or a small number of devices due to storage capacity limitations. This embodiment is based on the flexible architecture of IoT, which can cover the centralized monitoring needs of large buildings, communities, and even city-level elevator networks. The openness of the IoT architecture and the flexibility of the time-series database make this embodiment highly expandable. In the future, new types of sensors can be easily connected, new analysis functions can be added, or external systems can be integrated, ensuring that the system adapts to technological development and user demand changes in the long term.

[0074] The data storage and computing module uses a time-series database, which is configured to manage high-frequency collected time-series data from devices. A time-series database is a database specifically designed to handle time-series data, optimized for the storage, query, and analysis of timestamped data. In IoT applications, devices often collect data at high frequencies, generating a large amount of time-series data. Using a time-series database can efficiently store and manage these high-frequency collected data, supporting fast data insertion, query, and analysis operations, such as real-time monitoring of device operating states, historical data backtracking analysis, etc.

[0075] The intelligent analysis module is also used to analyze the energy consumption data of the traction machine based on clustering algorithms, identify high-energy consumption periods, and generate corresponding energy-saving control strategies. For example, through a vector control algorithm, the torque output of the motor in a light load state is reduced, and invalid energy consumption is reduced.

[0076] The clustering algorithm is an unsupervised learning algorithm that can divide similar data points in a data set into the same category. In this module, the clustering algorithm analyzes the energy consumption data of the device, and according to the characteristics of energy consumption, such as energy consumption and time distribution, different time periods are divided into different categories to identify high energy consumption periods. After identifying the high energy consumption period, the module generates the corresponding energy saving strategy. For example, using a vector control algorithm. The vector control algorithm can accurately control the magnetic field and torque of the motor. When the motor is in a light load state, the torque output of the motor is reduced through the algorithm. Because the motor does not need to output too high torque when it is in a light load state, reducing the torque output can reduce the invalid energy consumption of the motor, thereby achieving the purpose of energy saving.

[0077] In combination Figures 1 to 15 As shown in the figure, according to the embodiment of the application, the second aspect provides a traction machine system, including a traction machine and an intelligent control system. The traction machine includes a traction machine assembly 2, a motor assembly 4, an encoder 44 and a controller assembly 5. The front end of the motor assembly 4 is coaxially connected with the traction machine assembly 2, and the controller assembly 5 is arranged on the motor assembly 4. The intelligent control system is integrally arranged on the controller assembly 5.

[0078] The above traction machine directly arranges the controller assembly 5 on the motor assembly 4, greatly shortens the signal transmission distance between the motor assembly 4 and the controller assembly 5, reduces the length of the signal line exposed in the complex electromagnetic environment, and thereby reduces the influence of electromagnetic interference on the stability of high / low level signals.

[0079] By shortening the transmission path, the current attenuates less in a short distance, the signal strength is more stable, the controller assembly receiving end can more accurately identify the signal, and avoids misjudgment or data loss caused by signal distortion.

[0080] The controller assembly can more reliably obtain key data such as motor assembly speed, position and other key data, such as encoder feedback position signals and motor operating state signals, to ensure that the elevator system drives and controls the car and counterweight device more accurately, and improves the safety and comfort of the elevator operation.

[0081] In traditional traction machine connection structures, the controller assembly is usually installed separately from the motor assembly, which not only occupies more space, but also requires additional connection lines and fixing parts during installation, increasing the complexity and cost of installation. However, by integrating the controller assembly 5 directly on the motor assembly 4, not only is space saved and space utilization improved, but the use of additional connection lines and fixing parts is also avoided, making the entire traction machine connection structure more compact and efficient. In addition, this integrated design helps to improve the stability and reliability of the system, as the physical connection between the controller assembly and the motor assembly is more secure, reducing the risk of failure due to loose connections or aging lines.

[0082] In some embodiments, the motor assembly 4 includes a motor housing, a motor shaft 41, a motor stator assembly 42, and a motor rotor assembly 45. The motor shaft 41 is rotatably arranged inside the motor housing, and the front end of the motor shaft 41 is coaxially connected with the traction machine assembly 2. The motor stator assembly 42 is fixedly arranged inside the motor housing, and the motor stator assembly 42 has an accommodating cavity axially formed therein. The motor rotor assembly is arranged in the accommodating cavity and is coaxially connected with the motor shaft 41, and the motor rotor assembly has an air gap with the motor stator assembly 42.

[0083] Among them, the motor housing is increased with cooling fins to improve the heat dissipation capacity, ensuring that the motor can maintain good operating condition under long time work, prolonging the service life of the motor.

[0084] The motor rotor assembly 45 includes a rotor core 452, a magnetic steel 453, a rotor baffle 451, and a motor shaft 41. The rotor core 452 includes a plurality of rotor laminations stacked in sequence, and each rotor lamination has a plurality of magnetic steel grooves 4521 arranged thereon. The magnetic steel 453 is provided with a plurality of magnetic steels 453, each of which is embedded in the magnetic steel groove 4521. The rotor baffle 451 is provided with two rotor baffles 451, which are respectively arranged at both ends of the rotor core 452. The motor shaft 41 passes through the rotor core 452 and the two rotor baffles 451, and is respectively fixedly connected with the rotor core 452 and the two rotor baffles 451.

[0085] In combination with Figures 8 to 12 As shown in the figure, the rotor baffle 451 includes a baffle body 4511 and a counterweight 4513. The end face of the baffle body 4511 is provided with a plurality of counterweight hole groups radially spaced apart, each counterweight hole group including a plurality of counterweight holes 4512 arranged circumferentially. The counterweight 4513 is provided with at least one, and the counterweight 4513 is arranged in at least one counterweight hole 4512. By increasing one or more groups of counterweights, the motor rotor assembly ultimately achieves dynamic balance.

[0086] The rotor baffle described above, by arranging multiple groups of counterweight hole groups in radial spacing, and distributing the counterweight holes in each group in circumferential spacing, provides more optional counterweight positions, which can be selected according to the specific orientation and size of the initial imbalance of the rotor, to approach or achieve high-precision dynamic balance requirements at one time, significantly improving the correction efficiency.

[0087] The reasonably designed open holes (such as annular array holes) can reduce the maximum stress concentration coefficient by 30%-50% through topological optimization distribution of stress, effectively improving the deformation resistance of the baffle body 4511.

[0088] The baffle body 4511 formed by the open holes can reduce weight under the premise of meeting the strength.

[0089] The counterweight holes 4512 corresponding to the positions of each counterweight hole group are in the same straight line in the radial direction. In this embodiment, the design of the radially aligned counterweight holes allows the holes at corresponding positions in different counterweight hole groups to be distributed along the same radius line, so that the counterweight holes at corresponding radial positions can be accurately selected and filled with counterweight blocks according to the specific orientation and size of the initial imbalance of the rotor (such as local mass deviation caused by uneven distribution of motor shaft key grooves and magnetic steel). Compared with the traditional single-circle circumferential distribution of counterweight holes, this embodiment can more flexibly compensate for the imbalance at different radius positions, significantly improving the accuracy of dynamic balance correction.

[0090] Each counterweight hole group is arranged at equal intervals in the radial direction on the end face of the baffle body 4511.

[0091] The counterweight holes 4512 in each counterweight hole group are arranged at equal intervals in the circumferential direction on the end face of the baffle body 4511. More specifically, the baffle body 4511 is uniformly arranged with counterweight holes at intervals of 15° in the circumferential direction, and the removable counterweight blocks are added to the hole positions of the baffle body 4511.

[0092] The counterweight holes 4512 are threaded holes. The counterweight blocks 4513 are attached to the end face of the baffle body 4511 and are fixed in the counterweight holes 4512 by bolts 4514. The bolts can be M3-M5 size bolts. The threaded hole and the bolt can form a mechanical locking structure. Compared with the traditional method of filling counterweight mud or adhering material in the smooth hole, the counterweight block fixed by the bolt is tightly attached to the end face of the baffle, which can effectively resist the centrifugal force and vibration under high-speed rotation, prevent the displacement or falling of the counterweight block, and ensure the long-term stability of dynamic balance.

[0093] In some embodiments, the counterweight 4513 is arranged between two adjacent or non-adjacent counterweight holes 4512 in the same counterweight hole group, which can accurately compensate for the initial imbalance at different angles in the same radius level, cover multi-angle imbalance problems in the same radial level, and avoid the limitations of single-hole correction. As an alternative embodiment, the counterweight 4513 is arranged between two adjacent counterweight holes 4512 in the corresponding or non-corresponding position of the adjacent counterweight hole group. The adjacent counterweight hole groups are equally spaced in the radial direction, and the corresponding holes are arranged along the same straight line, and the non-corresponding holes are arranged along different straight lines. By arranging the counterweight between the adjacent hole groups, the imbalance of the adjacent radial area can be adjusted at the same time, covering a wider radial range and solving the problem of incomplete correction caused by insufficient radial coverage of the traditional single-hole hole position. As an alternative embodiment, the counterweight 4513 is arranged between two non-adjacent counterweight holes 4512 in the corresponding or non-corresponding position of the non-adjacent counterweight hole group. The non-adjacent counterweight hole groups are farther apart in the radial direction, and the counterweight can be arranged to perform multi-level collaborative correction for large-scale mass deviation from the center to the edge, thereby significantly improving the coverage capability of overall dynamic balance.

[0094] The arrangement of the counterweight between different hole groups or hole positions provides more optional correction positions, which can be flexibly selected according to the specific position and size of the initial imbalance of the rotor to install the counterweight at the optimal position, thereby approaching or achieving high-precision dynamic balance at one time, reducing the cumbersome operation of multiple adjustments and cutting or adhering materials in the traditional technology, and improving the correction efficiency.

[0095] The baffle body 4511 is an aluminum baffle body. Aluminum has a low density, which can effectively reduce the overall weight of the motor when used as a baffle body.

[0096] The counterweight 4513 is an aluminum or alloy counterweight. Aluminum or alloy counterweights also have the advantage of lightweight, which helps to reduce the overall weight of the motor.

[0097] The motor shaft 41 is interference-fitted with two compression rings 455, and each compression ring 455 is attached to the end surface of the rotor baffle 451 away from the rotor core 452 to limit the axial position of the two rotor baffles 451. The compression ring 455 interference-fitted on the motor shaft 41 is connected more firmly, and the two compression rings 455 are attached to the corresponding rotor baffles 451, respectively. The two compression rings 455 press and fix the two rotor baffles 451, which can effectively resist the vibration and impact loads during motor operation, prevent the rotor baffle 451 from being displaced due to axial stress (such as axial movement of the rotor core during rotation), and ensure the axial stability of the rotor core.

[0098] And because the embodiment adopts interference assembly, it does not need additional fasteners, and axial limiting is realized only through the direct cooperation of the compression ring and the motor shaft, reducing the number of parts. At the same time, the design of the compression ring and the rotor baffle end face avoids the complex process of traditional multi-component fixation (such as welding or multi-bolt locking), simplifies the overall structure of the motor rotor, and reduces the assembly difficulty and manufacturing cost.

[0099] More specifically, the compression ring 455 is a steel compression ring, which has the characteristics of high strength and high rigidity, and can effectively withstand the axial load in the operation of the motor.

[0100] In order to further improve the connection stability of the rotor baffle 451 and the motor shaft 41, the inner wall of the inner circle of the rotor baffle 451 is provided with a mounting key 4515, which is matched with the key groove of the motor shaft 41. The mounting key 4515 on the rotor baffle 451 is positioned in the key groove to tightly connect the two.

[0101] The rotor lamination is divided into a plurality of circumferentially arranged magnetic pole regions, and two V-shaped magnetic steel grooves 4521 are arranged on each magnetic pole region. The V-shaped magnetic steel groove is symmetrical, which makes the magnetic flux generated by the magnetic steel more uniformly distributed in the air gap, reduces the magnetic field distortion, and reduces the harmonic to reduce the noise.

[0102] The magnetic steel groove 4521 is in the form of a dovetail groove, which makes the fixation of the magnetic steel 453 more secure.

[0103] Each magnetic steel 453 is respectively embedded in a part of the area of the magnetic steel groove 4521, and the area of each magnetic steel groove 4521 without embedding the magnetic steel 453 forms an air gap hole 4522. Each air gap hole 4522 respectively corresponds to a counterweight hole 4512 on the rotor baffle 451 and communicates. More specifically, the counterweight hole on the rotor baffle at the front end, the air gap hole 4522, and the counterweight hole on the rotor baffle at the rear end form a channel, which can guide the flow of air or cooling liquid and accelerate the heat dissipation of the rotor structure.

[0104] In some embodiments, the motor assembly 4 is connected with an encoder 44 at the rear end, and the controller assembly 5 and the encoder 44 are located on the same side of the motor assembly 4. The motor assembly 4 can match multiple types of encoders, such as photoelectric encoders, magnetic encoders, rotary encoders, and inductive encoders, and only the corresponding positioning shaft needs to be replaced. The encoder 44 includes an encoder rotating part 441, an encoder outer ring 442, and an encoder bracket 443.

[0105] A positioning hole 414 is formed on the rear end face of the motor shaft 41 to provide a precise installation reference for the positioning shaft 43. The positioning shaft 43 is arranged in the positioning hole 414, and the encoder rotating part is detachably arranged on the positioning shaft 43. The positioning shaft 43 includes an inlaid shaft segment and a positioning disc. The inlaid shaft segment is positioned in the positioning hole 414 by screws. The positioning disc is connected with the inlaid shaft segment and the encoder rotating part 441.

[0106] The encoder outer ring 442 is coaxially arranged with the encoder rotating part 441 and located at the periphery of the encoder rotating part 441. The encoder outer ring 442 is in interference fit with the encoder bracket 443, which can effectively prevent the encoder outer ring 442 from loosening due to vibration or external force. The encoder bracket 443 is detachably arranged on the motor housing, which is stably supported by the motor housing, further reducing the displacement risk of the encoder outer ring 442. The encoder outer ring 442, as the fixed detection end of the encoder, usually integrates sensing elements such as magnetic gratings or optical gratings. The position stability directly affects the accuracy of signal detection. If the encoder outer ring 442 is loose, it may cause the sensing signal to deviate or distort, ultimately affecting the controller's judgment of the motor state. The double fixation method (interference fit + motor housing) of the present embodiment greatly improves the anti-interference ability of the encoder outer ring 442.

[0107] Since the encoder outer ring 442 is coaxial with the encoder rotating part 441 and the encoder outer ring 442 is located at the periphery of the rotor, the encoder outer ring 442 integrates magnetic sensors for magnetic encoders or light sources and receivers for photoelectric encoders. When the encoder rotating part 441 rotates with the motor shaft, the detection elements of the encoder outer ring 442 will real-time sense the motion characteristics of the encoder rotating part (such as the change of the magnetic grating scale or the optical grating stripe on the encoder rotating part), generating electrical signals (such as pulse signals or analog signals) related to the speed and position.

[0108] Since the controller assembly is arranged on the same side as the encoder, the electrical signals detected by the encoder outer ring 442 are directly transmitted to the controller assembly through a short distance line. Due to the high coaxiality of the encoder rotating part and the motor shaft and the stable position of the encoder outer ring, the accuracy and stability of the signal are guaranteed, and the controller assembly can accurately calculate the real-time speed, position and other key parameters of the motor, thereby realizing accurate control of the elevator traction machine.

[0109] In some embodiments, the motor stator assembly 42 comprises a stator core and a stator winding, the stator winding being a flat wire winding and / or a round wire winding. The stator core has a plurality of stator slots circumferentially and spacedly arranged on the inner wall surface of the stator core, and the stator winding is accommodated in the stator slots. The stator slots are arranged as inclined slots not parallel to the axis of the rotating shaft, thereby effectively weakening the tooth harmonics and reducing electromagnetic noise and vibration. The motor rotor assembly comprises a rotor core and a plurality of magnetic steels, each of which is attached to the surface of the rotor core or embedded in the rotor core, i.e., the motor rotor assembly adopts the form of surface-mounted magnetic steels and embedded magnetic steels, thereby improving the motor speed and further improving the power density and reducing the volume.

[0110] More specifically, the winding cross section is a flat wire, which has a higher filling factor in the stator slot than a round wire, can reduce the winding resistance and improve the motor efficiency; at the same time, the flat wire has a larger heat dissipation area, and the heat is more easily dissipated, allowing the motor to operate stably under higher load, indirectly supporting higher speed. The surface-mounted magnetic steel has a simple structure and is easy to manufacture, which is suitable for low-speed scenes; its air gap magnetic field has good sinusoidal property, and the back electromotive force waveform is better, which helps to reduce the motor operating noise. The embedded magnetic steel is embedded in the rotor core, and the core wraps the magnetic steel, which greatly improves the centrifugal force resistance of the magnetic steel and allows the motor to operate in a higher speed range.

[0111] In some embodiments, the controller assembly 5 is arranged on the side of the motor assembly 4 away from the traction machine assembly 2, for receiving external control signals and sending control instructions to the motor assembly 4 according to the external control signals, so as to realize accurate control of the traction machine assembly 2.

[0112] The controller assembly 5 comprises a controller housing 51, an end cover plate 53 and a control board 52. The rear end of the controller housing 51 is provided with an opening, the front end surface of the controller housing 51 is provided with a ventilation hole 511, and the front end of the controller housing 51 is detachably arranged at the rear end of the encoder bracket 443. The end cover plate 53 is arranged to block the opening of the controller housing 51, and forms a control board containing cavity together with the controller housing 51. The control board 52 is arranged in the control board containing cavity.

[0113] The control board 52 comprises a main control board and an interface board connected to each other, a smart control system is integrated on the main control board, and an expansion function interface is arranged on the interface board for connecting a sensor network module and a remote interaction module. The output lines of the motor assembly 4 and the output lines of the encoder 44 are connected to the interface board.

[0114] The conventional traction machine adopts a low-speed direct drive mode, and the traction sheave is connected to the motor shaft through a rotating shaft. The system efficiency is not high. In order to solve this problem, in some embodiments, a reducer assembly 3 is additionally arranged between the traction machine assembly 2 and the motor assembly 4, and the controller assembly and the reducer assembly are arranged in series in the axial direction. The electric drive system is integrated into the drive end of the traction machine, the system efficiency is improved, and the overall performance of the traction machine is improved. It is possible to adjust the speed, torque and other parameters through the reducer, optimize the power transmission process, and improve the overall performance of the traction machine.

[0115] The reducer assembly 3 includes a reducer housing, a reducer input gear 35, a reducer output gear 34 and reducer double gear 33. The reducer input gear 35 is coaxially connected with the output shaft end of the motor assembly 4. The reducer output gear 34 is coaxially connected with the input shaft end of the traction machine assembly 2. The reducer double gear 33 is provided with a plurality of reducer double gears 33, each of which is rotatably arranged inside the reducer housing. The reducer double gear 33 includes a first planetary gear 331 and a second planetary gear 332, which are coaxially connected through a connecting shaft. Each first planetary gear 331 is circumferentially arranged on the periphery of the reducer input gear 35 and engaged with the reducer input gear 35. Each second planetary gear 332 is circumferentially arranged on the periphery of the reducer output gear 34 and engaged with the reducer output gear 34.

[0116] In this embodiment, the reducer adopts coaxial, planetary and parallel shaft reduction structures to reduce the axial installation space and improve the system efficiency. The reducer is a parallel shaft reducer with planetary structure, which is different from the traditional planetary reduction box. The reducer of this embodiment does not have the outer gear structure of the planetary reduction box, has lower cost and lower noise than the planetary reduction box. The reducer of this embodiment can withstand greater force and is less likely to be damaged when facing larger loads, making it suitable for work scenes with higher load capacity requirements.

[0117] In some embodiments, the outer diameter of the reducer input gear 35 is smaller than the outer diameter of the first planetary gear 331, the outer diameter of the second planetary gear 332 is smaller than the outer diameter of the first planetary gear 331, and the outer diameter of the reducer output gear 34 is greater than the outer diameter of the second planetary gear 332. In this embodiment, when the reducer input gear (small outer diameter) is engaged with multiple sets of large outer diameter first planetary gears, the number of contact teeth is large, the engagement overlap coefficient is high, and the transmission impact is small. The engagement of the second planetary gear (small outer diameter) with the large outer diameter reducer output gear also has the characteristics of high overlap coefficient, and the tooth load changes more smoothly. The stability of two-stage transmission is superimposed, effectively reducing the vibration and noise of the reducer during operation, and improving the comfort in the elevator car.

[0118] In some embodiments, interfaces are reserved on the traction machine assembly 2, the reducer assembly 3, the motor assembly 4, the encoder 44, and the controller assembly 5, so that the traction machine assembly 2, the reducer assembly 3, the motor assembly 4, the encoder 44, and the controller assembly 5 are sequentially connected by bolt fastening. More specifically, the interfaces are respectively arranged on the traction machine base, the reducer housing, the motor housing, the encoder bracket 443, and the controller housing 51, and the traction machine base, the reducer housing, the motor housing, the encoder bracket 443, and the controller housing 51 are connected by bolt fastening.

[0119] During on-site installation, each assembly is only needed to be aligned with the reserved interfaces in the order of traction machine assembly → reducer → motor assembly → controller assembly and fastened by bolts, without the need for on-site secondary processing or adjustment, which greatly shortens the installation period (compared with traditional welding or customized assembly, the efficiency is significantly improved), and is especially suitable for installation scenes with limited space such as elevator shafts.

[0120] The structure type of the reducer assembly 3 in the present application is described as follows. Figure 3 The reducer housing is divided into a reducer front housing 31 and a reducer rear housing 32. The reducer front housing 31 and the reducer rear housing 32 are respectively provided with three bearing mounting holes, and three pairs of tapered bearings 38 are mounted on the reducer front housing 31 and the reducer rear housing 32. One reducer input gear 35 is simultaneously meshed with a first planetary gear 331 of three reducer double-gear wheels 33, and the power is transmitted through a second planetary gear 332 of the reducer double-gear wheel 33 to a reducer output gear 34. The power is transmitted through the three double-gear wheels, which reduces the axial installation space and improves the system efficiency. The reducer output gear 34 transmits power to the traction machine shaft 26 through a spline. The reducer front housing 31 is positioned with the traction machine rear end cover 24 through a stopper and is fixed by bolts.

[0121] The structure type of the motor assembly 4 in the present application is described as follows. Figure 4 The motor assembly 4 shares a housing with the reducer assembly 3. The reducer rear housing 32 can be used as a front end cover of the motor, and the motor housing and the motor rear shell are positioned with the reducer rear housing 32 through a stopper, and are sequentially connected and fixed by the third bolt. The motor shaft 41 is supported and fixed on the reducer rear housing 32 and the motor rear shell through a motor front bearing 411 and a motor rear bearing 412, wherein the motor rear bearing 412 is a floating end bearing.

[0122] In some embodiments, the traction machine assembly 2 includes a traction machine base, a traction machine shaft 26, and a traction wheel 22. The two ends of the traction machine shaft 26 are rotatably arranged inside the traction machine base. The traction wheel 22 is connected with the traction machine shaft 26, and a winding groove 221 is arranged on the outer side wall of the traction wheel 22.

[0123] In some embodiments, the front section of the motor shaft 41 extends forward out of the motor housing and is fixedly connected with the reducer input gear 35. The rear section of the tractor shaft 26 extends rearward out of the tractor base and is fixedly connected with the reducer output gear 34.

[0124] A stepped hole 261 is formed on the rear end face of the tractor shaft 26 to provide a precise radial positioning reference for the front end of the motor shaft 41, ensuring that the axes of the two shafts strictly coincide. The front end of the motor shaft 41 is inserted into the stepped hole 261 and is concentrically positioned with the tractor shaft 26 by the bearing 47. The front end of the motor shaft 41 is inserted into the stepped hole of the tractor shaft 26, forming a nested layout of the shaft sleeves, replacing the traditional parallel or separate structure of the two shafts of the motor shaft 41 and the tractor shaft 26. This embodiment greatly shortens the axial distance between the motor assembly and the tractor assembly, thereby making the overall axial length of the tractor shorter, meeting the miniaturization and compactness requirements of the overall tractor. When assembling the motor shaft 41 and the tractor shaft 26, the preliminary positioning of the two shafts can be quickly completed by "insertion-alignment", without the need for complex measurement and adjustment tools, thereby shortening the installation time.

[0125] In some embodiments, the tractor base is a split tractor base, which includes a tractor front end cover 21, a tractor rear end cover 24, a side cover plate 211, an upper cover plate 212, and a tractor bottom plate 29. The tractor front end cover 21 and the tractor rear end cover 24 have a spacing therebetween, and the side cover plate 211, the upper cover plate 212, and the tractor bottom plate 29 are respectively detachably arranged between the tractor front end cover 21 and the tractor rear end cover 24. The side cover plate 211, the upper cover plate 212, the tractor bottom plate 29, the tractor front end cover 21, and the tractor rear end cover 24 surround a traction wheel containing cavity for containing the traction wheel 22. The tractor bottom plate 29 is provided with a through hole 214 for the traction cable wound on the traction wheel 22 to pass through.

[0126] The side cover plate 211 partially shields the traction wheel 22, so that the unshielded part of the traction wheel 22 is exposed, directly exposing the traction wheel and the traction cable winding area, facilitating the maintenance personnel to quickly disassemble and maintain the traction wheel and replace the traction cable.

[0127] The structure type of the tractor assembly 2 in the present application is as follows: Figures 1 to 3The following description is provided. The traction machine shaft 26 is supported and fixed on the front end cover 21 and the rear end cover 24 of the traction machine via the front bearing 25 and the rear bearing 28. The traction machine shaft 26 and the traction sheave 22 are connected by a first flat key 27 to transmit torque. The front end cover 21 and the rear end cover 24 of the traction machine are connected and fixed to two traction machine connecting shafts 23 via a traction machine base plate 29, and are fixed with a fifth bolt 210 and a fifth nut 215. The traction sheave 22 is protected by an upper cover plate 212 and two side cover plates 211, and is fixed to the front end cover 21 and the rear end cover 24 of the traction machine with a sixth bolt 216 and a seventh bolt 217.

[0128] In some embodiments, a brake 1 is provided at the front end of the traction machine base. The brake 1 has a rotating part and a braking part. The rotating part is coaxially connected to the traction machine shaft 26, and the braking part is used to brake the rotating part. Specifically, the rotating part is a brake disc that rotates synchronously with the traction machine shaft 26. More specifically, the brake disc is a keyway 12. The braking part is a brake pad that contacts the braking part through friction to achieve deceleration.

[0129] The brake 1 is located near the traction machine assembly 2. Since the brake is directly close to the traction machine assembly 2, its brake caliper / brake pad can directly act on the output shaft or traction sheave of the traction machine. There is no need to indirectly brake through intermediate components such as the reducer assembly 3 or the motor shaft 41. The braking response is more timely, avoiding braking delay caused by jamming or wear of intermediate components (such as the reducer).

[0130] The specific installation process for the aforementioned traction machine is as follows:

[0131] by Figure 1 The following steps are described. The brake 1 is fixed to the front cover 21 of the traction machine using the first bolt 11, and the spline key 12 of the brake is connected to the traction machine shaft 26 using a spline connection. The reducer assembly 3 is fixed to the rear cover 24 of the traction machine using the second bolt 36, and the reducer output gear 34 is connected to the traction machine shaft 26 using a spline connection. The motor assembly 4 is fixed to the reducer rear housing 32 on the reducer assembly 3 using the third bolt, and the motor shaft 41 of the motor assembly 4 is connected to the reducer input gear 35 using a second flat key 37. The motor shaft 41 and the traction machine shaft 26 are concentrically positioned using a bearing 47. The controller is fixed to the motor rear housing of the motor assembly 4 using the fourth bolt 48, and the leads of the motor stator assembly 42 and the encoder 44 are fixedly connected to the controller.

[0132] The working principle of the circuit structure on the control board will be explained in detail below.

[0133] Power conversion and distribution: The power supply system converts the input alternating current into stable direct current through transformers, rectifiers and filters for use by the motor elevator, controller and signal module, and has voltage fluctuation compensation function; overload and short circuit protection is realized through circuit breakers and fuses to ensure circuit safety in extreme conditions. Current closed-loop monitoring technology is used to detect motor overcurrent and open-phase faults in real time and trigger millisecond-level power-off protection.

[0134] Signal acquisition and logic processing: The PLC receives car button instructions, floor call signals and safety sensor input signals, and completes operation direction decision and speed curve planning through preset algorithms.

[0135] Motor drive and speed control: Based on the vector control algorithm, the torque and speed of the traction machine are adjusted to achieve smooth elevator start and stop and reduce mechanical impact; the motor input frequency is dynamically adjusted by the frequency converter to match the energy consumption requirements under different loads. By gently adjusting the torque and speed of the motor during start and stop, mechanical impact and energy loss are reduced, the instantaneous impact load of mechanical parts such as gears and bearings is suppressed, and the service life of the equipment is extended.

[0136] The door control circuit triggers the door opening action after receiving the level signal, and uses the PID algorithm to adjust the door motor speed to ensure that the car door and the landing door open and close synchronously.

[0137] The above technical solution improves the accuracy of operation: precise stopping of the elevator car is achieved, and the response time is short.

[0138] Safety level is strengthened: multiple safety monitoring parameters (such as traction cable tension and guide rail deflection) are integrated to improve fault prediction accuracy.

[0139] Intelligent expansion capability: supports OPCUA protocol to realize data interaction with building management system, and remote monitoring coverage reaches 100%;

[0140] The specific structure of the circuit structure on the control board will be described in detail below.

[0141] In combination Figure 13 As shown, the control board includes a main control board and an interface board connected to the main control board, and the main control board is used to control the operation of the elevator; wherein the interface board is provided with an internal interface and an external interface, the main control board transmits signals with the internal transmission signals of the elevator control system through the internal interface, and the main control board transmits signals with the external transmission signals of the elevator control system through the external interface; the internal interface includes an expansion function interface, which is used to connect a variety of safety monitoring devices for monitoring the state of the elevator and wireless communication equipment.

[0142] As Figure 14As shown, the internal interface includes a first interface and a second interface, and a switching power supply is connected between the first interface and the second interface, for supplying power to the elevator controller. The first interface includes: an electrical safety door lock detection interface, a DC 24V power supply detection interface, a contactor control interface, an emergency electric switch interface, a door machine power supply, a safety circuit / door machine brake power supply, and a control transformer interface. The second interface includes: an early door opening function circuit interface, an extended function use interface, and a machine room intercom interface. The extended function use interface is connected to various types of sensors for monitoring the state of the traction machine and wireless communication devices.

[0143] Specifically, the functions implemented by the various functional interfaces included in the first interface are as follows: ① Electrical safety door lock detection interface: has the function of monitoring the door lock state of the elevator landing door and the car door in real time, detecting whether the door lock circuit is conducting, and judging whether the door is reliably closed and locked.

[0144] ② DC 24V power supply detection interface, for detecting whether the DC 24V power supply voltage of the mainboard is normal, monitoring the stability of the voltage, and whether there is overvoltage or undervoltage.

[0145] ③ Contactor control interface: this interface is connected to the main contactor, brake contactor and other execution elements, and the main control board controls the contactor attraction / disconnection through this interface to realize elevator starting, braking and other actions, avoiding elevator out of control due to contactor failure (such as forcibly running when the brake is not released). ④ Emergency electric switch interface: through this interface, the emergency electric switch (located in the machine room or the car roof) is connected, and the maintenance personnel can short-circuit part of the safety circuit (such as the speed limiter, buffer switch) in the maintenance mode, manually control the elevator to run at low speed, facilitate the maintenance in the shaft and the adjustment of the car position (such as rescue leveling when a person is trapped), and improve the emergency handling efficiency. ⑤ Power input interface: provides power supply for the main control door machine system, so that the door machine can normally execute the door opening and closing action, and the connected power supply includes the door machine power supply, the safety circuit / door machine brake power supply, the control transformer interface, etc., to ensure the stable operation of the door machine system, realize the smooth opening and closing of the elevator door, improve the convenience and comfort of the passengers, and at the same time, cooperate with the door lock detection to ensure safety.

[0146] The functions implemented by the various functional interfaces included in the second interface are as follows: ① Early door opening function interface: realizes the function of opening the car door before the elevator is leveled and stabilized, optimizes the elevator running efficiency, and shortens the waiting time of passengers. ② Extended function interface: used to connect various sensors (such as temperature sensor, encoder, position sensor, vibration sensor, etc.), expand the functions of the elevator control system, and realize comprehensive monitoring of the running state of the traction machine. ③ Optional machine room intercom interface: establishes a voice communication channel between the machine room and the car, the machine room and the outside (such as the management room), facilitates the conversation between the machine room personnel and the car personnel or external personnel when the elevator fails or needs to communicate.

[0147] In a specific embodiment, the sensors connected by the extended function interface include:

[0148] ① Position sensor, arranged on the machine bottom plate 29, monitors the working state of the traction sheave by detecting the left and right yaw displacement amount, and the position sensor is fixed on the extended function interface through a wire harness. The position sensor monitors the left and right yaw displacement amount in real time, and once it is found that the yaw exceeds the normal range, it can timely warn the potential traction sheave abnormal wear, traction rope slotting and even derailment risk, avoid the elevator running failure caused by the abnormal working state of the traction sheave, and effectively protect the passenger life safety and equipment safety. The position sensor is arranged on the machine bottom plate 29, and connected with the extended function interface through a wire harness, so that when the yaw abnormality is monitored, the traction sheave component failure can be accurately located, which is convenient for maintenance personnel to quickly lock the problem and improve the fault diagnosis efficiency.

[0149] ② Temperature sensor, embedded in the motor stator assembly, with its lead-out terminal fixed on the extended function interface through a hole in the motor rear shell, for real-time monitoring of the temperature of the stator assembly. The temperature sensor is embedded in the motor stator assembly, which can directly and accurately obtain the real-time temperature of the stator. Once the temperature exceeds the safety threshold, it can timely trigger the warning or protection mechanism to avoid the motor being damaged due to overheating, effectively protect the safe and stable operation of the motor, and prolong the service life of the motor.

[0150] ③ Encoder, the shell of the encoder is fixed on the motor rear shell, and the rotating shaft is connected with the positioning shaft; the positioning shaft is coaxially fixed with the motor shaft, for indirectly calculating the traction sheave speed by detecting the motor shaft speed. The motor shaft speed is accurately detected by the encoder, and the traction sheave speed is calculated by combining the speed ratio of the reducer, which can provide accurate speed feedback information for the elevator control system.

[0151] ④Vibration sensor, including a first vibration sensor and a second vibration sensor. The first vibration sensor is arranged on the surface of the non-driven end bearing seat of the driving motor and the driving end bearing seat, for monitoring the radial or axial vibration signal of the front / rear bearing of the motor; the first vibration sensor is arranged on the surface of the non-driven end (motor rear shell) and the driving end (reducer rear shell 32) bearing seat, and can monitor the radial or axial vibration signal of the motor front / rear bearing. In the early stage of bearing failure, such as wear, poor lubrication or fatigue crack, the vibration characteristics will change slightly, and the sensor can detect these abnormal vibrations in time, and give an early warning before the fault worsens, so as to avoid serious accidents such as motor jamming and stopping caused by bearing failure, and ensure the safe operation of the elevator. The second vibration sensor is arranged in the bearing area of the traction sheave, for monitoring the vibration signal of the traction cable tension and the wear of the wheel groove. The second vibration sensor is arranged in the bearing area of the traction sheave (traction sheave front end cover and traction sheave rear end cover), which can effectively monitor the abnormal vibration caused by the change of traction cable tension and the wear of wheel groove. Uneven traction cable tension is easy to cause slipping and rupture risk, and wheel groove wear will affect the traction capacity. By monitoring the related vibration signal, such hidden dangers can be found in time to prevent elevator operation failure caused by traction cable or wheel groove problem and ensure passenger safety. Through the division of the two types of vibration sensors, when abnormal vibration signals are detected, the fault components can be directly located. For example, if the motor bearing vibration is abnormal, the problem is determined to be in the motor bearing; if the vibration in the traction sheave area is abnormal, it points to the traction cable or the wheel groove, helping maintenance personnel to quickly lock the fault point, reducing troubleshooting time and improving maintenance efficiency.

[0152] ⑤Image acquisition device, for monitoring the steel wire rope stretch or the guide rail offset. Through the image acquisition device, subtle changes (such as the initial stage of single wire fracture of the steel wire rope and millimeter-level offset of the guide rail) that cannot be perceived by the human eye can be captured, and early warning can be given through background monitoring algorithm analysis to avoid hidden dangers from evolving into serious failures.

[0153] In the embodiment, by accessing a wireless communication device (such as a 4G / 5G module or a Wi-Fi module), the elevator data collected by the sensor can be uploaded to a cloud management platform in real time. The operation and maintenance personnel do not need to conduct on-site inspection, but can remotely view the equipment operation parameters through a mobile phone or a computer, and can master the elevator state in real time, thereby greatly reducing the labor inspection cost, and the embodiment is especially suitable for distributed management scenes with multiple machine rooms.

[0154] The interface board of the controller circuit structure in the traction machine provided in the embodiment is externally connected, such as Figure 15As shown, the external interface includes a third interface and a fourth interface, wherein: the third interface includes: a shaft safety cable interface, a traveling cable strong / weak current plug-in interface, an external call communication cable interface, a pit intercom cable interface, an up / down switch frame cable interface; the fourth interface includes: a holding brake power plug-in interface, a car power plug-in interface, a main machine side emergency stop disc hand wheel switch plug-in interface, a mains power interface, a speed limiter switch plug-in interface, a backup input signal interface and a main machine holding brake related plug-in interface.

[0155] Specifically, the interface functions of the third interface are as follows: ① Shaft safety cable interface: connected to the safety door lock device of each floor in the shaft, it monitors the door lock state in real time to ensure that the elevator floor door is closed and locked normally. It prevents people from accidentally opening the floor door when the elevator is running, avoids dangerous accidents such as falling, and ensures the safety of people in the shaft and the operation of the elevator. Once the door lock state is abnormal, the elevator safety brake can be triggered. ② Traveling cable interface: connected to the traveling cable between the car and the control cabinet, it transmits car instructions (such as internal call signals, door machine signals) and car state data (such as load weight, position signals), supports two-way communication between the car and the controller, and ensures real-time transmission of internal call instructions, door machine actions and other signals. ③ External call communication cable interface: used to realize communication between the car and the external call panel of each floor, receive external call signals, and feedback elevator running status (such as floor display, running direction, etc.). It enables passengers to call the elevator at the floor, understand the elevator running situation, improve the convenience and experience of riding; at the same time, it helps the elevator control system to reasonably schedule the elevator and improves the running efficiency. ④ Pit intercom cable interface: used to establish voice communication connection between the pit and the car, machine room and other positions, facilitating communication between maintenance personnel in the pit and other positions. When maintenance is performed in the elevator pit, maintenance personnel can communicate with the outside world through this interface, timely feedback problems and obtain assistance, and ensure safe and efficient maintenance work. ⑤ Up / down switch frame cable interface: used to connect the related equipment of the elevator up / down switch frame, transmit control signals and state feedback signals such as leveling signals and limit signals. It can help the elevator to accurately level and stop, prevent the elevator from hitting the top or squatting at the bottom, ensure the safety of the elevator operation, and provide accurate position information for the elevator control system to optimize the operation control.

[0156] ⑤ Deceleration switch cable interface: connected to the deceleration switch in the shaft, when the elevator approaches the target floor, it triggers the deceleration signal to control the elevator to stop smoothly, improve the leveling accuracy and riding comfort, cooperate with the main control board to realize speed closed-loop control, reduce mechanical impact, and prolong the service life of the equipment.

[0157] The fourth interface includes the following interface functions: ① brake power interface and car power interface: the brake power interface provides power for the brake device and controls the opening and closing of the brake; the car power interface supplies power to the equipment in the car. The brake power ensures the reliable operation of the brake, so that the elevator can accurately brake when needed to prevent the car from sliding; the car power maintains the normal operation of the equipment in the car, ensuring passenger comfort and safety. ② Turning hand wheel switch interface: connects the turning hand wheel switch, which triggers a switch signal when manually turning the car, cutting off the power supply of the elevator to ensure the safety of the turning operation and prevent the elevator from starting unexpectedly during turning, ensuring the safety of maintenance personnel. ③ Mains power interface: used to introduce mains power to provide the main power source for the elevator control system and related equipment. This ensures stable power supply for the elevator, maintaining normal operation and providing basic energy support for elevator operation. ④ Governor switch interface: used to connect the governor switch, which triggers action when the elevator speed exceeds the rated speed by a certain value, feeding back a signal to the elevator control system through the plug-in interface to trigger the safety brake device. This can prevent the elevator from running at excessive speed and avoid safety accidents caused by excessive speed, making it an important safety protection device interface for ensuring the safety of elevator operation. ⑤ Backup input interface: used to connect backup devices, including: portable mobile device interface, product upgrade interface, and fault emergency interface. The portable mobile device interface can serve as a data exchange channel when connecting a portable mobile device; the product upgrade interface provides an access channel for new function modules or improved signal sources when the product is upgraded, without the need for large-scale modification of the original system; the fault emergency interface can quickly access a backup signal source to maintain basic system function operation when the main input signal is abnormal due to line damage, signal source failure, electromagnetic interference, etc. For example, in the elevator control system, if the main sensor signal is interrupted, the backup sensor signal can be accessed to ensure that the elevator can still perform key operations such as safe landing and leveling, avoiding accidents caused by signal failure and ensuring continuous and stable operation of the equipment. ⑥ Main brake interface: used to connect the control circuit and monitoring device related to the main brake, achieving precise control and state monitoring of the main brake. This ensures accurate and reliable operation of the main brake, timely response to control system instructions, and prevents the main machine from accidentally rotating, improving the safety and stability of the traction machine.

[0158] In the embodiment of the present application, the first interface is arranged on the first interface board, the second interface is arranged on the second interface board, the third interface is arranged on the third interface board, and the fourth interface is arranged on the fourth interface board. The first, second, third and fourth interface boards are connected with the control board through the flat cables to realize layered transmission of signals. For example, the layered transmission of signals is realized through 40P flat cables and the control board. Layered transmission can reduce interference between different types of signals. For example, the internal control signals of the first interface and the second interface are layered with the external control signals of the third interface and the fourth interface to avoid interference of strong electrical signals on weak electrical control signals and sensor signals, ensure accurate transmission of elevator control instructions, prevent elevator malfunction caused by signal disorder, and improve operation stability and safety. At the same time, the layout of the line is more regular, and the signal lines of different functional modules are clearly divided. When troubleshooting, maintenance personnel can quickly locate the corresponding interface board and line according to the layered signal, shorten the troubleshooting time, and reduce the difficulty and cost of maintenance. The regular line layout is also conducive to the installation and upgrading of the elevator system. When the elevator control system needs to be expanded in function, the layered transmission structure can more conveniently access new equipment or new functional modules. The newly added signals can be connected to the corresponding interface board according to the functional characteristics, and layered transmission is realized through 40P flat cables and the control board, without the need to make large-scale changes to the original line, thereby enhancing the scalability and adaptability of the system.

[0159] The embodiment utilizes the characteristic of 40P flat cable with large data transmission capacity, and combines the layered transmission mode to enable parallel transmission of different types of signals, fully utilize the data transmission capacity of the flat cable, improve the signal transmission efficiency, enable the control board to quickly receive and process various data, and realize more accurate and efficient control of the elevator.

[0160] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope defined by the appended claims.

Claims

1. A traction machine system, characterized in that, include: The traction machine includes a traction machine assembly (2), a motor assembly (4) and a controller assembly (5). The motor assembly (4) is coaxially connected to the traction machine assembly (2), and the controller assembly (5) is mounted on the motor assembly (4). The intelligent control system is integrated on the controller assembly (5); The intelligent control system includes: The data acquisition layer includes a sensor network module and a fault code reading module. The sensor network module is used to read data from sensors installed on the elevator to collect parameters and reflect the dynamic operating status of the elevator. The fault code reading module is used to obtain elevator status codes in real time to directly reflect the abnormal status of internal elevator components. The remote monitoring and data analysis layer includes an intelligent analysis module and a remote interaction module. The intelligent analysis module analyzes the time-series data collected by the sensor network module based on the LSMT neural network model to obtain elevator status information, which includes elevator fault prediction information and elevator optimal operation information. The remote interaction module is used to remotely transmit the elevator status information obtained by the intelligent analysis module. The remote monitoring and data analysis layer also includes a data storage and computing module. This data storage and computing module is built on an Internet of Things (IoT) architecture and supports concurrent access from multiple IoT devices. It is used to store dynamic operating status data and abnormal status data acquired by the data acquisition layer. The data storage and computing module uses a time-series database, which is configured to manage time-series data collected at high frequencies by the management devices. The intelligent analysis module is also used to analyze the energy consumption data of the traction machine based on clustering algorithms, identify high energy consumption periods, and generate corresponding energy-saving control strategies. The motor assembly (4) includes: Motor housing; The motor shaft (41) is rotatably disposed inside the motor housing, and the front end of the motor shaft (41) is coaxially connected to the traction machine assembly (2); Motor stator assembly (42), the motor stator assembly (42) is fixedly disposed inside the motor housing, and the motor stator assembly (42) has an axial cavity; the motor stator assembly (42) is provided with a temperature sensor for real-time monitoring of the temperature of the motor stator assembly; Motor rotor assembly (45), the motor rotor assembly (45) is disposed in the accommodating cavity and coaxially connected to the motor shaft (41), and there is an air gap between the motor rotor assembly (45) and the motor stator assembly (42); The motor rotor assembly (45) includes a rotor baffle (451), which includes a baffle body (4511) and a counterweight (4513). The end face of the baffle body (4511) is provided with a plurality of counterweight hole groups arranged radially at intervals, and each counterweight hole group includes a plurality of counterweight holes (4512) arranged circumferentially at intervals. At least one counterweight (4513) is provided, and the counterweight (4513) is disposed in at least one counterweight hole (4512). By adding one or more sets of counterweights, the motor rotor assembly is finally made to achieve dynamic balance. An encoder (44) is connected to the motor assembly (4). The encoder (44) includes an encoder rotating part (441), an encoder outer ring (442), and an encoder bracket (443). A positioning hole (414) is provided on the rear end face of the motor shaft (41). A positioning shaft (43) is provided in the positioning hole (414). The encoder rotating part is fixedly mounted on the positioning shaft (43). The positioning shaft (43) includes an inlaid shaft section and a positioning disk. The inlaid shaft section is positioned in the positioning hole (414). The positioning disk is connected to the inlaid shaft section and to the encoder rotating part (441). The encoder outer ring (442) is coaxially arranged with the encoder rotating part (441) and located on the periphery of the encoder rotating part (441). The encoder outer ring (442) is interference-fitted with the encoder bracket (443). The encoder bracket (443) is detachably mounted on the rear end of the motor housing.

2. The traction machine system according to claim 1, characterized in that, The sensor network module is used to read data from current sensors and / or voltage sensors and / or temperature sensors and / or displacement sensors and / or vibration acceleration sensors arranged on the elevator.

3. The traction machine system according to claim 1, characterized in that, The controller assembly (5) includes: Controller housing (51); The control board (52) is disposed inside the controller housing (51); the control board (52) includes a main control board and an interface board that are connected to each other, the intelligent control system is integrated on the main control board, and the interface board is provided with an extended function interface for connecting the sensor network module and the remote interaction module.

4. The traction machine system according to claim 3, characterized in that, The controller assembly (5) and the encoder (44) are located on the same side of the motor assembly (4); The controller housing (51) is detachably mounted at the rear end of the encoder bracket (443); the output lines of the motor assembly (4) and the encoder (44) are connected to the interface board.

5. The traction machine system according to claim 3, characterized in that, A reducer assembly (3) is also provided between the traction machine assembly (2) and the motor assembly (4), and the reducer assembly (3) includes: The reducer housing is detachably mounted at the front end of the motor housing; The reducer input gear (35) is coaxially connected to the output shaft end of the motor assembly (4); The reducer output gear (34) is coaxially connected to the input shaft end of the traction machine assembly (2); Multiple reducer double gears (33) are rotatably disposed inside the reducer housing. Each reducer double gear (33) includes a first planetary gear (331) and a second planetary gear (332). The first planetary gear (331) and the second planetary gear (332) are coaxially connected by a connecting shaft. Each first planetary gear (331) is circumferentially disposed around the reducer input gear (35) and meshes with the reducer input gear (35). Each second planetary gear (332) is circumferentially disposed around the reducer output gear (34) and meshes with the reducer output gear (34).

6. The traction machine system according to claim 5, characterized in that, The traction machine assembly (2) includes: The traction machine base is detachably mounted on the front end of the reducer housing; The two ends of the traction machine shaft (26) are rotatably disposed inside the traction machine base; The traction sheave (22) is connected to the traction machine shaft (26), and the outer side wall of the traction sheave (22) is provided with a winding groove (221); the front section of the motor shaft (41) extends forward out of the motor housing and is fixedly connected to the input gear (35) of the reducer; the rear section of the traction machine shaft (26) extends backward out of the traction machine base and is fixedly connected to the output gear (34) of the reducer; A stepped hole (261) is provided on the rear end face of the traction machine shaft (26). The front end of the motor shaft (41) is inserted into the stepped hole (261) and is concentrically positioned with the traction machine shaft (26) through the bearing (47). The traction machine base is a split-type traction machine base, which includes a front cover (21), a rear cover (24), a side cover (211), a top cover (212), and a bottom plate (29). There is a gap between the front cover (21) and the rear cover (24). The side cover (211), the top cover (212), and the bottom plate (29) are detachably mounted on the front cover (21) and the rear cover (24), respectively. Between (24), the side cover plate (211), the top cover plate (212), the traction machine base plate (29), the traction machine front cover (21), and the traction machine rear cover (24) form a traction wheel holding cavity for holding the traction wheel (22); the traction machine front cover (21) and the traction machine rear cover (24) are connected and fixed to two traction machine connecting shafts (23) through a traction machine base plate (29), and fixed with the fifth bolt (210) and the fifth nut (215).

7. The traction machine system according to claim 6, characterized in that, The front end of the traction machine base is provided with a brake (1), the brake (1) has a rotating part and a braking part, the rotating part is coaxially connected to the traction machine shaft (26), and the braking part is used to brake the rotating part.

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