Intelligent control system and traction machine system

Abstract

The invention discloses an intelligent control system and a traction machine system, and the system comprises a data collection layer which comprises a sensor network module and a fault code reading module; the sensor network module is used for reading data of a sensor arranged on an elevator to realize parameter acquisition; the fault code reading module is used for acquiring an elevator state code in real time; the remote monitoring and data analysis layer comprises an intelligent analysis module and a remote interaction 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 is used for remotely transmitting the elevator state information analyzed by the intelligent analysis module. Elevator operation data and elevator state information are collected through the data collection layer, then the data are analyzed and processed through the remote monitoring and data analysis layer, finally remote monitoring, fault prediction and performance management of an elevator are achieved, and the safety and reliability of elevator operation are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator traction machines, and particularly relates to an intelligent control system and a traction machine system. Background Art

[0002] In the existing elevator control system, components are all arranged in the control cabinet, resulting in a relatively large volume of the control cabinet, occupying more hoistway space. In an installation environment with limited hoistway space, it causes great difficulties in the design, layout, and later maintenance of the elevator, and increases the cost. At the same time, the existing elevator control system has a low degree of intelligence, and fault monitoring mainly relies on manual inspection, lacking comprehensive real-time analysis of the operating state. Manual inspection is limited by manpower and time, difficult to cover all potential fault points, and relies on experience judgment, being easily affected by subjective factors, unable to capture early fault signals such as tiny vibrations and abnormal temperatures of the equipment, resulting in a lag in fault discovery. The traditional control system is difficult to achieve early fault perception and remote monitoring, leading to high operation and maintenance costs and low equipment reliability, and it can no longer meet the current requirements of intelligence and green energy conservation. Summary of the Invention

[0003] In view of this, the present invention provides an intelligent control system and a traction machine system to solve the problem that the traditional control system is difficult to achieve early fault perception and remote monitoring.

[0004] In a first aspect, the present invention provides an intelligent control system, including: A data acquisition layer, including a sensor network module and a fault code reading module; the sensor network module is used to read the data of sensors arranged on the elevator to realize parameter acquisition, so as to reflect the dynamic operating state of the elevator; the fault code reading module is used to obtain the elevator status code in real time to directly reflect the abnormal state of the internal components of the elevator; A remote monitoring and data analysis layer, including 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 status information, and the elevator status information includes elevator fault prediction information and elevator optimal operation information; the remote interaction module is used to remotely transmit the elevator status analyzed by the intelligent analysis module.

[0005] In the above intelligent control system, the dynamic operating parameters of the elevator equipment are collected in real time through sensors deployed on various components of the elevator, reflecting the operating state of the equipment from a physical level. The abnormal status code of the internal components of the elevator equipment is directly obtained through the fault code reading module, reflecting the internal abnormality of the elevator equipment from a logical level. The present invention combines the sensor network module with 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 status.

[0006] 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, the model can identify abnormal patterns and trends in the parameters, thereby obtaining elevator status information. The elevator status information includes elevator fault prediction information and elevator optimal operation information. The elevator fault prediction information is used to predict possible elevator failures, detect potential elevator failures in advance, avoid the occurrence of failures, and reduce maintenance costs and downtime. The elevator optimal operation information is used to provide optimal solutions for the operation mode of the elevator.

[0007] The remote interaction module remotely transmits the elevator status information analyzed by the intelligent analysis module, and can send this information to a remote monitoring center or the devices of relevant management personnel to achieve remote monitoring and management of the elevator. This facilitates management personnel to timely understand the operation status and fault conditions of the elevator, so as to make decisions and take corresponding measures in a timely manner.

[0008] The above intelligent control system collects the dynamic operation status data and abnormal status data of the elevator through the data acquisition layer, and then the remote monitoring and data analysis layer analyzes and processes these data, ultimately realizing remote monitoring, fault prediction and process control of the elevator, improving the safety and reliability of elevator operation.

[0009] In an alternative embodiment, the sensor network module is used to read the 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.

[0010] In an alternative embodiment, the remote monitoring and data analysis layer further includes a data storage and calculation module. The data storage and calculation module is built based on the Internet of Things architecture, supports concurrent access of multiple Internet of Things devices, and is used to store the dynamic operation status data and abnormal status data obtained by the data acquisition layer; the data storage and calculation module uses a time series database, and the time series database is configured to manage the time series data collected by devices at high frequency.

[0011] The beneficial effects of the above technical solution are as follows: The data storage and calculation module is based on the elastic architecture of the Internet of Things, which can cover the centralized monitoring requirements of elevator networks in large buildings, communities or even cities. The openness of the Internet of Things architecture and the flexibility of the time series database enable the present invention to have extremely strong scalability. In the future, new types of sensors can be easily connected, new analysis functions can be added, or external systems can be integrated to ensure that the system can long-term adapt to the development of technology and the changes of user needs.

[0012] In a second aspect, the present invention provides a traction machine system, comprising a traction machine and an intelligent control system; the traction machine includes a traction machine assembly, a motor assembly, and a controller assembly, the motor assembly is coaxially connected to 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.

[0013] In an optional embodiment, the controller assembly includes a controller housing and a control board; the control board is arranged inside the controller housing; the control board includes a main control board and an interface board which are connected to each other, the intelligent control system is integrally arranged on the main control board, and an extended function interface is arranged on the interface board for connecting the sensor network module and the remote interaction module.

[0014] In an optional embodiment, the motor assembly includes a motor housing, a motor shaft, a motor stator assembly, and a motor rotor assembly; the motor shaft is rotatably arranged inside the motor housing, and the front end of the motor shaft is coaxially connected to the traction machine assembly; the motor stator assembly is fixedly arranged inside the motor housing, and an accommodation cavity is axially formed in the motor stator assembly; the motor rotor assembly is arranged in the accommodation cavity and is coaxially connected to the motor shaft, and there is an air gap 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.

[0015] The beneficial effects of the above technical solutions are as follows: In the present invention, the controller assembly is directly arranged on the motor assembly and is located on the same side as the encoder, greatly shortening the signal transmission distance among the encoder, the motor assembly, and the controller assembly, reducing the length of the signal lines exposed in the complex electromagnetic environment, and thus reducing the influence of electromagnetic interference on the stability of high / low level signals.

[0016] In an optional embodiment, the encoder includes an encoder rotating part, an encoder outer ring, and an encoder bracket; a positioning hole is formed in the rear end face 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 is located outside 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; the output line of the motor assembly and the output line of the encoder are connected to the interface board.

[0017] The beneficial effects of the above technical solution are as follows: Since the controller assembly and the encoder are arranged on the same side, the electrical signals detected by the outer ring of the encoder are directly transmitted to the controller assembly through a short-distance line. Due to the high coaxiality between the rotating part of the encoder and the motor shaft and the stable position of the outer ring of the encoder, the accuracy and stability of the signals are guaranteed. The controller assembly can accurately calculate key parameters such as the real-time speed and position of the motor based on this, so as to achieve precise control of the elevator traction machine.

[0018] In an optional implementation manner, a speed reducer assembly is further provided between the traction machine assembly and the motor assembly. The speed reducer assembly includes: A speed reducer housing, detachably arranged at the front end of the motor housing; A speed reducer input gear, coaxially connected to the output shaft end of the motor assembly; A speed reducer output gear, coaxially connected to the input shaft end of the traction machine assembly; A plurality of speed reducer double gears, each of the speed reducer double gears is rotatably arranged inside the speed reducer housing. The speed reducer double gear includes a first planetary gear and a second planetary gear, and the first planetary gear and the second planetary gear are coaxially connected through a connecting shaft. Each of the first planetary gears is circumferentially arranged around the speed reducer input gear and meshes with the speed reducer input gear, and each of the second planetary gears is circumferentially arranged around the speed reducer output gear and meshes with the speed reducer output gear.

[0019] The beneficial effects of the above technical solution are as follows: The speed reducer adopts coaxial, planetary and parallel shaft reduction structures, reducing the axial installation space and improving the system efficiency. The speed reducer is a parallel shaft speed reducer with a planetary structure, which is different from the traditional planetary speed reducer. The speed reducer of the present invention does not have the external gear ring structure of the planetary speed reducer, has a lower cost and less noise than the planetary speed reducer; and the speed reducer of the present invention can withstand greater forces and is less likely to be damaged when facing a larger load, and is suitable for working scenarios with higher requirements for bearing capacity.

[0020] In an optional implementation manner, the traction machine assembly includes: A traction machine base, detachably arranged at the front end of the speed reducer housing; A traction machine shaft, the two ends of which are rotatably arranged inside the traction machine base; A traction wheel, connected to the traction machine shaft, and a winding groove is arranged on the outer side wall of the traction wheel.

[0021] In an optional implementation manner, the front section of the motor shaft extends forward out of the motor housing and is fixedly connected to the speed reducer input gear; the rear section of the traction machine shaft extends backward out of the traction machine base and is fixedly connected to the speed reducer output gear; A stepped hole is provided on the rear end face of the traction machine shaft, and the front end of the motor shaft is inserted into the stepped hole and concentrically positioned with the traction machine shaft through a bearing.

[0022] In an alternative embodiment, a brake is provided at the front end of the traction machine base. The brake has a rotating part and a braking part. The rotating part is coaxially connected to the traction machine shaft, and the braking part is used to brake the rotating part. Description of the Drawings

[0023] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a schematic structural diagram of a traction machine system provided by the present invention; Figure 2 It is a plan view of a traction machine system provided by the present invention; Figure 3 It is a sectional view of a traction machine system provided by the present invention; Figure 4 It is a partial sectional view of a traction machine system provided by the present invention; Figure 5 It is a schematic structural diagram of the first internal perspective of the reducer assembly of a traction machine system provided by the present invention; Figure 6 It is a schematic structural diagram of the second internal perspective of the reducer assembly of a traction machine system provided by the present invention; Figure 7 It is an exploded view of the controller assembly of a traction machine system provided by the present invention; Figure 8 It is a schematic structural diagram of the rotor baffle in a traction machine system provided by the present invention; Figure 9 It is a plan view of the motor rotor assembly in a traction machine system provided by the present invention; Figure 10 It is a magnetic steel layout diagram of the motor rotor assembly in a traction machine system provided by the present invention; Figure 11 It is a layout diagram of the counterweight on the baffle body in a traction machine system provided by the present invention; Figure 12 It is a schematic structural diagram of the motor assembly in a traction machine system provided by the present invention; Figure 13Schematic diagram of the controller circuit structure in a traction machine system provided by the present invention; Figure 14 Internal interface schematic diagram of the interface board of the controller circuit structure in a traction machine system provided by the present invention; Figure 15 External interface schematic diagram of the interface board of the controller circuit structure in a traction machine system provided by the present invention.

[0025] Explanation of reference numerals: 1. Brake, 11. First bolt, 12. Flower keyboard; 2. Traction machine assembly, 21. Front end cover of the traction machine, 22. Traction wheel, 221. Winding groove, 23. Connecting shaft, 24. Rear end cover of the traction machine, 25. Front bearing of the traction machine, 26. Traction machine shaft, 261. Step hole, 27. First flat key, 28. Rear bearing of the traction machine, 29. Traction machine bottom plate, 210. Fifth bolt, 211. Side cover plate, 212. Upper cover plate, 214. Through hole, 215. Fifth nut, 216. Sixth bolt, 217. Seventh bolt; 3. Reducer assembly, 31. Front housing of the reducer, 32. Rear housing of the reducer, 33. Double gear of the reducer, 331. First planetary gear, 332. Second planetary gear, 34. Output gear of the reducer, 35. Input gear of the reducer, 36. Second bolt, 37. Second flat key, 38. Taper bearing; 4. Motor assembly, 41. Motor shaft, 42. Motor stator assembly, 43. Positioning shaft, 44. Encoder, 441. Rotating part of the encoder, 442. Outer ring of the encoder, 443. Encoder bracket, 45. Motor rotor assembly, 451. Rotor baffle, 4511. Baffle body, 4512. Counterweight hole, 4513. Counterweight block, 4514. Bolt, 4515. Installation key, 452. Rotor core, 4521. Magnet steel groove, 453. Magnet steel, 455. Pressing ring, 47. Bearing, 48. Fourth bolt, 411. Front bearing of the motor, 412. Rear bearing of the motor, 414. Positioning hole; 5. Controller assembly, 51. Controller housing, 511. Ventilation hole, 52. Control board. Detailed implementation manners

[0026] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts fall within the protection scope of the present invention.

[0027] According to an embodiment of the present invention, in a first aspect, an intelligent control system is provided. The controller uses the intelligent control system to implement multi-parameter acquisition and remote monitoring functions, and its core architecture is divided into a data acquisition layer and a remote monitoring and data analysis layer.

[0028] Among them, the data acquisition layer includes a sensor network module and a fault code reading module. The sensor network module is used to read the data of sensors arranged on the elevator to achieve parameter acquisition, so as to reflect the dynamic operation state of the elevator. The fault code reading module is used to obtain the elevator status code in real time to directly reflect the abnormal state of the internal components of the elevator. More specifically, the sensor network module is used to read the 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.

[0029] The sensor network module is connected to various sensors arranged on the elevator and is responsible for reading the data collected by these sensors. By collecting these data, various parameters of the elevator during operation, such as temperature, rotation 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 real-time collects the physical parameters of the equipment operation through sensors such as current / voltage, temperature, and vibration acceleration. These data are the direct mapping of the equipment health status.

[0030] The fault code reading module obtains the elevator status code in real time. When abnormal conditions occur in the internal components of the equipment during the operation of each elevator device, corresponding status codes will be generated. By reading these status codes, the module can directly reflect the abnormal state of the internal components of the elevator equipment, quickly locate the possible problems of the elevator, and facilitate taking timely measures for maintenance.

[0031] 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 logics (such as temperature thresholds, signal loss), and directly mark the obvious fault types of the equipment. For example, when the brake is not fully released, the system will generate a code clearly indicating "brake abnormality", providing a fault label for the intelligent analysis module and being used for the training of the supervised learning model.

[0032] The traction machine, as an important part of the elevator, is mainly responsible for transporting and transmitting power to drive the elevator to operate. In this embodiment, sensors deployed on the traction machine (such as temperature, vibration, and rotation speed sensors, etc.) are used to collect the dynamic operation parameters of the equipment in real time (such as temperature changes, vibration frequencies, rotation speed fluctuations, etc.), which reflect the operation state of the equipment from a physical level. The abnormal status codes (such as overload, short circuit, communication failure, etc. codes) of the internal components of the traction machine (such as motors, bearings, control systems) are directly obtained through the fault code reading module, which reflects the internal abnormalities of the equipment from a logical level. In this embodiment, the sensor network module and the fault code reading module are combined 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.

[0033] Among them, the remote monitoring and data analysis layer includes an intelligent analysis module and a remote interaction module.

[0034] The intelligent analysis module analyzes the parameters collected by the sensor network module based on a neural network model. Through the learning and training of a large amount of historical data, elevator status information is obtained. The elevator status information includes elevator fault prediction information and elevator optimal operation information. This model can identify abnormal patterns and trends in the 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, reducing maintenance costs and downtime. The elevator optimal operation information can be information that can optimize the elevator operation process when the elevator does not malfunction after analyzing the real-time or historical data of the sensors through the model, such as operation strategy-related information on user requirements and elevator energy consumption.

[0035] More specifically, by analyzing the temperature / vibration trend based on the LSMT neural network model, predictive maintenance can be carried out, such as predicting faults such as bearing wear. The intelligent analysis module uses the LSMT neural network model to deeply analyze the time-series data collected by the sensors (such as the change 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 faults in advance (such as bearing wear, motor overheating, etc.). Compared with the traditional regular maintenance mode, this predictive maintenance can reduce the downtime caused by sudden faults, avoid waste of resources caused by over-maintenance, and reduce the risk of fault expansion.

[0036] The remote interaction module is used to remotely transmit the elevator status information analyzed by the intelligent analysis module, and can send this information to a remote monitoring center or the devices of relevant management personnel, so as to achieve remote monitoring and management of the elevator. It is convenient for management personnel to timely understand the operating status and fault conditions of the elevator, so as to make decisions and take corresponding measures in a timely manner. Even if the elevator components are deployed in a dispersed scenario (such as the elevator machine rooms of multiple buildings), the operation and maintenance personnel can centrally manage through a unified platform without on-site inspection; the fault information directly reaches the responsible person, shortening the discovery and handling time; the historical fault information can be used to optimize model training (improve prediction accuracy) or summarize the equipment maintenance rules. The remote interaction module provides a Web / mobile HMI interface, supporting real-time parameter visualization, alarm push (text message / email), and remote start / stop control.

[0037] Traditional methods only rely on manual experience or single-point sensors, and the accuracy of fault location is low. The present invention realizes accurate fault location through a fusion mechanism of "sensor network + fault code + intelligent analysis". The sensor network provides a physical track to reflect how the fault occurs, and the fault code provides a system label to clarify the location where the fault occurs. The intelligent analysis module associates dual-source data through the LSMT model, improving the accuracy of fault location.

[0038] Traditional elevator maintenance requires on-site manual inspection. The present invention breaks through the space limitation through the remote interaction module. The sensor network and fault code data are uploaded to the cloud in real time. The operation and maintenance personnel can view the device status (such as motor speed, reducer oil temperature) through the Web / mobile HMI interface; fault warnings are pushed through text messages / email / APP, eliminating the need for on-site troubleshooting; multiple devices can be centrally monitored, reducing the labor input.

[0039] The above intelligent control system collects the operation data and fault information of the traction machine through the data acquisition layer, and then the remote monitoring and data analysis layer analyzes and processes these data, finally realizing remote monitoring, fault prediction and process control of the traction machine, improving the safety and reliability of the traction machine operation.

[0040] In some embodiments, the remote monitoring and data analysis layer further includes a data storage and calculation module. The data storage and calculation module is built based on the Internet of Things architecture, and is used to support the concurrent access of multiple Internet of Things devices, and is used to store the dynamic operation status data and abnormal status data obtained by the data acquisition layer.

[0041] The Internet of Things 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 Internet of Things platform to realize the efficient, stable and secure development and deployment of Internet of Things applications.

[0042] Supporting concurrent access of multiple devices means that the system can handle connection requests from multiple devices simultaneously. In the Internet of Things (IoT) scenario, there are usually a large number of devices that need to access the system, such as sensors, smart terminals, etc. This system allows these devices to access simultaneously, ensuring that they can all transmit data normally without problems such as access failures or system crashes caused by an excessive number of devices.

[0043] Sampled data refers to the data collected by devices at regular time intervals during operation, such as temperature, humidity, pressure, etc. data collected by sensors. Historical fault data is the data generated when a device fails, recording information such as the time of the fault occurrence, the phenomenon, and relevant parameters. The system will store this data for subsequent analysis, query, and use.

[0044] Due to storage capacity limitations, traditional monitoring systems can only manage a single device or a small number of devices. This embodiment is based on the elastic architecture of IoT and can cover the centralized monitoring requirements of large buildings, communities, and even city-level elevator networks. The openness of the IoT architecture and the flexibility of the time-series database enable this embodiment to have extremely strong scalability. In the future, it can easily access new types of sensors, add new analysis functions, or integrate external systems to ensure that the system can long-term adapt to the development of technology and changes in user needs.

[0045] The data storage and calculation module uses a time-series database, which is configured to manage the time-series data collected by devices at high frequencies. A time-series database is a database specifically designed to process time-series data, which is optimized for the storage, query, and analysis of timestamp data. In IoT applications, devices usually collect data at high frequencies, generating a large amount of time-series data. Using a time-series database can efficiently store and manage this high-frequency collected data, supporting fast data insertion, query, and analysis operations, such as real-time monitoring of device operating states and retrospective analysis of historical data.

[0046] The intelligent analysis module is also used to analyze the energy consumption data of the traction machine based on the clustering algorithm, identify high-energy-consuming periods, and generate corresponding energy-saving control strategies. For example, by using the vector control algorithm to reduce the torque output of the motor under light load conditions and reduce ineffective energy consumption.

[0047] The clustering algorithm is an unsupervised learning algorithm that can divide similar data points in a dataset into the same category. In this module, the clustering algorithm analyzes the energy consumption data of the device. Based on characteristics such as the level of energy consumption and time distribution, different time periods are divided into different categories to identify high-energy-consuming periods. After identifying the high-energy-consuming periods, the module generates corresponding energy-saving strategies. For example, the vector control algorithm is adopted. The vector control algorithm can precisely 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 this algorithm. Because in the light-load state, the motor does not need to output too high torque, reducing the torque output can reduce the ineffective energy consumption of the motor, thus achieving the purpose of energy saving.

[0048] Combined Figures 1 to 15 As shown, according to an embodiment of the present invention, in a second aspect, a traction machine system is provided, 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 to 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.

[0049] For the above-mentioned traction machine, the controller assembly 5 is directly arranged on the motor assembly 4, greatly shortening the signal transmission distance between the motor assembly 4 and the controller assembly 5, reducing the length of the signal line exposed to the complex electromagnetic environment, thereby reducing the influence of electromagnetic interference on the stability of high / low level signals.

[0050] By shortening the transmission path, the current decays less within a short distance, the signal strength is more stable, and the receiving end of the controller assembly can more accurately identify the signal, avoiding misjudgment or data loss caused by signal distortion.

[0051] The controller assembly can more reliably obtain key data such as the rotational speed and position of the motor assembly, such as the position signal feedback by the encoder and the motor operating state signal, ensuring that the elevator system drives and controls the car and the counterweight device more precisely, and improving the safety and comfort of the elevator operation.

[0052] In the traditional connection structure of the traction machine, the controller assembly is usually separately installed from the motor assembly, which not only occupies more space, but also requires additional connecting wires and fixing parts during the installation process, increasing the installation complexity and cost. In this embodiment, by directly integrating the controller assembly 5 on the motor assembly 4, not only is space saved and the space utilization rate is improved, but also the use of additional connecting wires and fixing parts is 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 because the physical connection between the controller assembly and the motor assembly is closer, reducing the risk of failures caused by loose connections or aging of the lines.

[0053] 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 disposed inside the motor housing, and the front end of the motor shaft 41 is coaxially connected to the traction machine assembly 2. The motor stator assembly 42 is fixedly disposed inside the motor housing, and a receiving cavity is axially formed in the motor stator assembly 42. The motor rotor assembly is disposed in the receiving cavity and is coaxially connected to the motor shaft 41, and there is an air gap between the motor rotor assembly and the motor stator assembly 42.

[0054] Wherein, heat dissipation fins are added around the motor housing to improve the heat dissipation capacity, ensure that the motor can still maintain a good operating state during long-term operation, and extend the service life of the motor.

[0055] The motor rotor assembly 45 includes a rotor core 452, permanent magnets 453, rotor baffles 451, and a motor shaft 41. The rotor core 452 includes a plurality of rotor punching sheets stacked in sequence, and a plurality of magnet slots 4521 are correspondingly provided on each rotor punching sheet. A plurality of permanent magnets 453 are provided, and each permanent magnet 453 is respectively embedded in the magnet slot 4521. Two rotor baffles 451 are provided, and the two rotor baffles 451 are respectively disposed 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 fixedly connected to the rotor core 452 and the two rotor baffles 451 respectively.

[0056] Combined Figures 8 to 12 As shown, the rotor baffle 451 includes a baffle body 4511 and a counterweight 4513. A plurality of groups of counterweight holes are radially spaced on the end face of the baffle body 4511, and each group of counterweight holes includes a plurality of counterweight holes 4512 spaced circumferentially. 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 groups of counterweights, the motor rotor assembly is finally balanced dynamically.

[0057] The above-mentioned rotor baffle, through the design of radially spacing multiple groups of counterweight holes and circumferentially spacing the counterweight holes within each group, provides more optional counterweight positions. According to the specific orientation and magnitude of the initial imbalance of the rotor, the corresponding hole positions can be selected to install the counterweights, approaching or achieving the high-precision dynamic balance requirements at one time, and significantly improving the calibration efficiency.

[0058] The reasonably designed openings (such as annular array holes) distribute stress through topological optimization, and can reduce the maximum stress concentration factor by 30% - 50%, effectively improving the anti-deformation ability of the baffle body 4511.

[0059] The baffle body 4511 formed by the openings can reduce weight on the premise of meeting the strength requirements.

[0060] The counterweight holes 4512 corresponding to the positions of each counterweight hole group are radially in the same straight line. In this embodiment, the design of the radially aligned counterweight holes enables the holes at corresponding positions in different counterweight hole groups to be distributed along the same radius line. This allows for precise selection of the counterweight holes at the corresponding radial positions to fill the counterweight blocks according to the specific orientation and magnitude of the initial unbalance of the rotor (such as local mass deviation caused by uneven keyways on the motor shaft, uneven distribution of permanent magnets, etc.). Compared with the traditional single-circle circumferential distribution of counterweight holes, this embodiment can more flexibly compensate for unbalances at different radius positions, significantly improving the accuracy of dynamic balance correction.

[0061] Each counterweight hole group is arranged at equal intervals in the radial direction on the end face of the baffle body 4511.

[0062] 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 counterweight holes are evenly arranged at intervals of 15° in the circumferential direction of the baffle body 4511, and removable counterweight blocks are installed using the hole positions of the baffle body 4511.

[0063] The counterweight holes 4512 are threaded holes. The counterweight blocks 4513 are fitted to the end face of the baffle body 4511 and fixed in the counterweight holes 4512 by bolts 4514. Bolts with specifications of M3 - M5 can be used. The cooperation between the threaded holes and the bolts can form a mechanical locking structure. Compared with the traditional method of filling counterweight mud or adhering materials in smooth holes, the counterweight blocks fixed by bolts are closely fitted to the baffle end face, which can effectively resist centrifugal force and vibration during high-speed rotation, prevent the counterweight blocks from shifting or falling off, and ensure the long-term stability of dynamic balance.

[0064] In some embodiments, the counterweight blocks 4513 are arranged between two adjacent or non-adjacent counterweight holes 4512 in the same counterweight hole group, which can precisely compensate for the initial unbalances at different angles within this radius level, covering the multi-angle unbalance problems in the same radial layer and avoiding the limitations of single-hole correction. As an alternative embodiment, the counterweight blocks 4513 are arranged between two counterweight holes 4512 with corresponding or non-corresponding positions in adjacent counterweight hole groups. The adjacent counterweight hole groups are equally spaced in the radial direction, the corresponding holes are on the same straight line, and the non-corresponding holes are on different straight lines. By arranging the counterweight blocks between the holes in adjacent groups, the unbalances in adjacent radial regions can be adjusted simultaneously, covering a wider radial range and solving the problem of incomplete correction caused by insufficient radial coverage of the traditional single-circle hole positions. As an alternative embodiment, the counterweight blocks 4513 are arranged between two counterweight holes 4512 with corresponding or non-corresponding positions in non-adjacent counterweight hole groups. The non-adjacent counterweight hole groups are farther apart in the radial direction. When arranging the counterweight blocks, multi-level collaborative correction can be performed for large-scale mass deviations from the center to the edge, significantly enhancing the overall dynamic balance coverage ability.

[0065] The setting method of the counterweight blocks between different hole groups or hole positions provides more optional correction positions. According to the specific orientation and magnitude of the initial imbalance of the rotor, the optimal position for installing the counterweight blocks can be flexibly selected to approach or reach the high-precision dynamic balance requirements at one time, reducing the cumbersome operations of multiple adjustments of cutting or adhering materials in the traditional technology and improving the correction efficiency.

[0066] The baffle body 4511 is an aluminum baffle body. The aluminum material has a low density, and as the baffle body, it can effectively reduce the overall weight of the motor.

[0067] The counterweight block 4513 is an aluminum counterweight block or an alloy counterweight block. The aluminum or alloy counterweight block also has the advantage of light weight, which helps to reduce the overall weight of the motor.

[0068] Two clamping rings 455 are press-fitted on the motor shaft 41. Each clamping ring 455 is in contact with the end face of a rotor baffle 451 away from the rotor core 452 to limit the axial position of the two rotor baffles 451. The clamping rings 455 press-fitted on the motor shaft 41 are more firmly connected. The two clamping rings 455 are respectively in contact with the corresponding rotor baffles 451, and the two clamping rings 455 press and fix the two rotor baffles 451, which can effectively resist loads such as vibration and impact during the operation of the motor, prevent the rotor baffle 451 from shifting due to axial force (such as axial movement when the rotor core rotates), and ensure the axial stability of the rotor core.

[0069] And because the interference fit is adopted in this embodiment, no additional fasteners are required. The axial limit is realized only through the direct cooperation between the clamping ring and the motor shaft, reducing the number of parts. At the same time, the design of the clamping ring in contact with the end face of the rotor baffle avoids the complex processes 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.

[0070] More specifically, the clamping ring 455 is a steel clamping ring. The steel clamping ring has the characteristics of high strength and high rigidity, and can effectively bear the axial load during the operation of the motor.

[0071] In order to further improve the connection stability between the rotor baffle 451 and the motor shaft 41, a mounting key 4515 is provided on the inner wall of the inner ring of the rotor baffle 451. The mounting key 4515 is adapted to the keyway of the motor shaft 41, and the mounting key 4515 on the rotor baffle 451 is positioned in the keyway to firmly connect the two.

[0072] The rotor punching is divided into multiple circumferentially arranged pole regions. Two V-shaped magnet slots 4521 are provided on each pole region. By symmetrically arranging the two magnet slots, the magnetic flux generated by the magnet is more evenly distributed in the air gap, reducing magnetic field distortion, which can reduce harmonics and thus reduce noise.

[0073] The magnet slot 4521 is set in the form of a dovetail groove, making the fixation of the magnet 453 more secure.

[0074] Each magnet 453 is respectively embedded in a partial area within the magnet slot 4521, and the area of each magnet slot 4521 where the magnet 453 is not embedded forms an air gap hole 4522. Each air gap hole 4522 is respectively in corresponding communication with a counterweight hole 4512 on the rotor baffle 451. More specifically, the counterweight holes on the front-end rotor baffle, the air gap holes 4522, and the counterweight holes on the rear-end rotor baffle form a channel, which can guide the flow of air or coolant to accelerate the heat dissipation inside the rotor structure.

[0075] In some embodiments, an encoder 44 is connected to the rear end of the motor assembly 4, 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 be matched with multiple types of encoders, such as optical encoders, magnetic encoders, rotary encoders, inductive encoders, etc., 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.

[0076] A positioning hole 414 is provided on the rear end face of the motor shaft 41, providing 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 section and a positioning disk, where the inlaid shaft section can be positioned in the positioning hole 414 by screws. The positioning disk is connected to the inlaid shaft section and is also connected to the encoder rotating part 441.

[0077] The encoder outer ring 442 and the encoder rotating part 441 are coaxially arranged and the encoder outer ring 442 is located on the periphery of the encoder rotating part 441. The encoder outer ring 442 and the encoder bracket 443 are in interference fit, 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, and through the stable support of the motor housing, the displacement risk of the encoder outer ring 442 is further reduced. The encoder outer ring 442, as the fixed detection end of the encoder, usually integrates sensing elements such as magnetic gratings or optical gratings, and its position stability directly affects the accuracy of signal detection. If the encoder outer ring 442 loosens, it may cause the induction signal to shift or distort, ultimately affecting the controller's judgment of the motor state. In this embodiment, through the double fixation method (interference fitting + motor housing), the anti-interference ability of the encoder outer ring 442 is greatly improved.

[0078] Since the outer ring 442 of the encoder is strictly coaxial with the rotating part 441 of the encoder and the outer ring 442 of the encoder is located on the periphery of the rotor, if the outer ring 442 of the magnetic encoder integrates magnetic sensors, or the outer ring of the optical encoder integrates light sources and receivers, when the rotating part 441 of the encoder rotates with the motor shaft, the detection elements of the outer ring 442 of the encoder will sense the motion characteristics of the rotating part 441 of the encoder in real time (such as the changes in the magnetic grating scale or grating stripes on the rotating part of the encoder), and generate electrical signals related to speed and position (such as pulse signals or analog signals).

[0079] Because the controller assembly is arranged on the same side as the encoder, the electrical signals detected by the outer ring 442 of the encoder are directly transmitted to the controller assembly through a short-distance line. Due to the high coaxiality between the rotating part of the encoder and the motor shaft and the stable position of the outer ring of the encoder, the accuracy and stability of the signals are guaranteed, and the controller assembly can accurately calculate key parameters such as the real-time speed and position of the motor based on this, so as to realize the precise control of the elevator traction machine.

[0080] In some embodiments, the motor stator assembly 42 includes a stator core and a stator winding. The stator winding is a flat wire winding and / or a round wire winding. A plurality of stator slots are circumferentially spaced 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 that are not parallel to the axis of the rotating shaft, so as to effectively weaken the tooth harmonics and reduce the electromagnetic noise and vibration. The motor rotor assembly includes a rotor core and permanent magnets. A plurality of permanent magnets are arranged, and each permanent magnet is attached to the surface of the rotor core or embedded inside the rotor core, that is, the motor rotor assembly adopts the surface-mounted permanent magnet and embedded permanent magnet forms, which improves the motor speed, further improves the power density, and reduces the volume.

[0081] More specifically, the cross-section of the winding is a flat wire. Compared with the round wire, its filling coefficient in the stator slot is higher, which 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 exported, allowing the motor to operate stably under higher loads and indirectly supporting higher speeds. The surface-mounted permanent magnet has a simple structure and is easy to manufacture, and is suitable for medium and low speed scenarios; its air-gap magnetic field has good sinusoidality and a better back electromotive force waveform, which helps to reduce the motor operation noise. The embedded permanent magnet is embedded inside the rotor core. Through the wrapping of the core on the permanent magnet, the anti-centrifugal force ability of the permanent magnet is greatly improved, allowing the motor to operate in a higher speed range.

[0082] In some embodiments, the controller assembly 5 is arranged on the side of the motor assembly 4 away from the traction machine assembly 2, and is used to receive external control signals and send control commands to the motor assembly 4 accordingly to realize the precise control of the traction machine assembly 2.

[0083] The controller assembly 5 includes a controller housing 51, an end cover plate 53, and a control board 52. An opening is provided at the rear end of the controller housing 51, ventilation holes 511 are provided on the front end face of the controller housing 51, and the front end of the controller housing 51 is detachably provided at the rear end of the encoder bracket 443. The end cover plate 53 is sealingly provided at the opening of the controller housing 51 and encloses a control board accommodation cavity with the controller housing 51. The control board 52 is arranged in the control board accommodation cavity.

[0084] The control board 52 includes a main control board and an interface board which are connected to each other. The intelligent control system is integrally arranged on the main control board, and expansion function interfaces are provided on the interface board for connecting a sensor network module and a remote interaction module. The output wires of the motor assembly 4 and the output wires of the encoder 44 are connected to the interface board.

[0085] Traditional traction machines adopt a low-speed direct drive method, where the traction wheel is connected to the motor shaft through a rotating shaft, and the system efficiency is not high. To solve this problem, in some embodiments, a speed reducer assembly 3 is added between the traction machine assembly 2 and the motor assembly 4, and the controller assembly and the speed reducer assembly are axially connected in series, integrating the electric drive system into the drive end of the traction machine to improve the system efficiency. It may be by adjusting parameters such as speed and torque through the speed reducer, optimizing the power transmission process, and thus improving the overall performance of the traction machine.

[0086] The speed reducer assembly 3 includes a speed reducer housing, a speed reducer input gear 35, a speed reducer output gear 34, and a speed reducer double gear 33. The speed reducer input gear 35 is coaxially connected to the output shaft end of the motor assembly 4. The speed reducer output gear 34 is coaxially connected to the input shaft end of the traction machine assembly 2. A plurality of speed reducer double gears 33 are provided, and each speed reducer double gear 33 is rotatably arranged inside the speed reducer housing. The speed reducer double gear 33 includes a first planetary gear 331 and a second planetary gear 332, and the first planetary gear 331 and the second planetary gear 332 are coaxially connected through a connecting shaft. Each first planetary gear 331 is circumferentially arranged around the speed reducer input gear 35 and meshes with the speed reducer input gear 35, and each second planetary gear 332 is circumferentially arranged around the speed reducer output gear 34 and meshes with the speed reducer output gear 34.

[0087] In this embodiment, the speed reducer adopts coaxial, planetary, and parallel shaft reduction structures, reducing the axial installation space and improving the system efficiency. The speed reducer is a parallel shaft reducer with a planetary structure. Different from the traditional planetary reduction box, the speed reducer in this embodiment does not have the external gear ring structure of the planetary reduction box, has a lower cost and less noise than the planetary reduction box; and the speed reducer in this embodiment can withstand greater forces and is less likely to be damaged when facing larger loads, and is suitable for working scenarios with higher requirements for load-bearing capacity.

[0088] In some embodiments, the outer diameter of the reducer input gear 35 is smaller than that of the first planetary gear 331, the outer diameter of the second planetary gear 332 is smaller than that of the first planetary gear 331, and the outer diameter of the reducer output gear 34 is larger than that of the second planetary gear 332. In this embodiment, when the reducer input gear (small outer diameter) meshes with multiple groups of large outer diameter first planetary gears, the number of contact teeth is large, the meshing overlap coefficient is high, and the transmission impact is smaller; the meshing of the second planetary gear (small outer diameter) with the large outer diameter reducer output gear also has the characteristic of a high overlap coefficient, and the change of the load between teeth is smoother. The superposition of the smoothness of the two-stage transmission effectively reduces the vibration and noise during the operation of the reducer and improves the comfort in the elevator car.

[0089] 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 and firmly connected by bolts. More specifically, the reserved 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 firmly connected by bolts.

[0090] During on-site installation, only need to align the reserved interfaces of each assembly in the order of traction machine assembly → reducer → motor assembly → controller assembly and fasten them with bolts, without on-site secondary processing or adjustment, which greatly shortens the installation cycle (compared with traditional welding or customized assembly, the efficiency is significantly improved), and is especially suitable for installation scenarios with limited space such as elevator hoistways.

[0091] The structural type of the reducer assembly 3 in the present invention is described as 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 installed on the reducer front housing 31 and the reducer rear housing 32; a reducer input gear 35 meshes with the first planetary gear 331 in three reducer double gears 33 at the same time, and the power is transmitted through the second planetary gear 332 in the reducer double gear 33 meshing with the reducer output gear 34; through the transmission of the three double gears, the axial installation space is reduced and the system efficiency is improved; the reducer output gear 34 transmits power to the traction machine shaft 26 through a spline; the reducer front housing 31 is positioned by the mating surface with the rear end cover 24 of the traction machine and is fixedly connected by bolts.

[0092] The structural type of the motor assembly 4 in the present invention is described as Figure 4It is described that the motor assembly 4 and the reducer assembly 3 share a housing. The rear housing 32 of the reducer can be used as the front end cover of the motor. The motor housing and the rear housing 32 of the reducer are positioned by the rabbet, and the motor housing and the rear housing of the motor are positioned by the rabbet. Then, the rear housing of the motor, the motor housing, and the rear housing 32 of the reducer are sequentially connected and fixed by the third bolts. The motor shaft 41 is supported and fixed on the rear housing 32 of the reducer and the rear housing of the motor through the front motor bearing 411 and the rear motor bearing 412, where the rear motor bearing 412 is a floating end bearing.

[0093] In some embodiments, the traction machine assembly 2 includes a traction machine seat, a traction machine shaft 26, and a traction wheel 22. Both ends of the traction machine shaft 26 are rotatably arranged inside the traction machine seat. The traction wheel 22 is connected to the traction machine shaft 26, and a winding groove 221 is provided on the outer sidewall of the traction wheel 22.

[0094] In some embodiments, 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 seat and is fixedly connected to the output gear 34 of the reducer.

[0095] A stepped hole 261 is provided on the rear end face of the traction machine shaft 26, providing an accurate radial positioning reference for the front end of the motor shaft 41 to ensure that the axes of the two shafts are strictly coincident. 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 a bearing 47. The front end of the motor shaft 41 is inserted into the stepped hole of the traction machine shaft 26, forming a nested layout of the sleeve and the shaft, replacing the traditional structure where the two shafts of the motor shaft 41 and the traction machine shaft 26 are parallel or separated. This embodiment significantly shortens the axial distance between the motor assembly and the traction machine assembly, and further makes the overall axial length of the traction machine shorter, meeting the requirements of miniaturization and compactness of the overall traction machine. When assembling the motor shaft 41 and the traction machine shaft 26, the preliminary positioning of the two shafts can be quickly completed through "insertion - alignment", without the need for complex measurement and adjustment tools, shortening the installation time.

[0096] In some embodiments, the traction machine seat is a split traction machine seat. The traction machine seat includes a traction machine front end cover 21, a traction machine rear end cover 24, side covers 211, an upper cover 212, and a traction machine bottom plate 29. There is a spacing between the traction machine front end cover 21 and the traction machine rear end cover 24. The side covers 211, the upper cover 212, and the traction machine bottom plate 29 are respectively detachably arranged between the traction machine front end cover 21 and the traction machine rear end cover 24. The side covers 211, the upper cover 212, the traction machine bottom plate 29, the traction machine front end cover 21, and the traction machine rear end cover 24 enclose a traction wheel receiving cavity for containing the traction wheel 22. A through hole 214 for the traction cable wound around the traction wheel 22 to pass through is provided on the traction machine bottom plate 29.

[0097] The side cover plate 211 partially shields the traction wheel 22, exposing the unshielded part of the traction wheel 22, directly exposing the traction wheel and the winding area of the traction rope, facilitating maintenance personnel to quickly disassemble and repair the traction wheel and replace the traction rope.

[0098] The structural form of the traction machine assembly 2 in the present invention is described by Figures 1 to 3 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 through the front bearing 25 and the rear bearing 28 of the traction machine; the torque is transmitted between the traction machine shaft 26 and the traction wheel 22 by connecting with a first flat key 27; 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 through a traction machine bottom plate 29, and fixed with a fifth bolt 210 and a fifth nut 215; there is 1 upper cover plate 212 and 2 side cover plates 211 above the traction wheel 22 for protection, and fixed on 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.

[0099] 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. Among them, the rotating part is a brake disc, which rotates synchronously with the traction machine shaft 26. More specifically, the brake disc is a spline disc 12; the braking part is a brake pad, which contacts the braking part through friction to achieve deceleration.

[0100] The brake 1 is arranged close to 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 the traction wheel of the traction machine, without indirectly braking 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).

[0101] The specific installation process of the above-mentioned traction machine is as follows: Described by Figure 1 The brake 1 is fixed on the front end cover 21 of the traction machine with a first bolt 11, and the spline disc 12 of the brake is connected to the traction machine shaft 26 with a spline; the reducer assembly 3 is fixed on the rear end cover 24 of the traction machine with a second bolt 36, and the output gear 34 of the reducer is connected to the traction machine shaft 26 with a spline; the motor assembly 4 is fixed on the rear housing 32 of the reducer assembly 3 with a third bolt, and the motor shaft 41 of the motor assembly 4 is connected to the input gear 35 of the reducer with a second flat key 37, and the motor shaft 41 and the traction machine shaft 26 are concentric and positioned with a bearing 47; the controller is fixed on the motor rear housing of the motor assembly 4 with a fourth bolt 48, and the lead wires of the motor stator assembly 42 and the lead wires of the encoder 44 are fixedly connected to the controller.

[0102] The working principle of the circuit structure on the control panel will be described in detail below.

[0103] Electrical energy conversion and distribution: The power supply system converts the input alternating current into stable direct current through a transformer, rectifier, and filter for use by the motor elevator, controller, and signal module, and has a voltage fluctuation compensation function; overload and short-circuit protection are achieved through circuit breakers and fuses to ensure circuit safety in extreme cases. The current closed-loop monitoring technology is adopted to detect motor overcurrent and phase loss faults in real time and trigger millisecond-level power-off protection.

[0104] Signal acquisition and logic processing: The PLC receives car button instructions, floor call signals, and safety sensor input signals, and completes the operation direction decision and speed curve planning through preset algorithms.

[0105] Motor drive and speed control: Based on the vector control algorithm, the torque and speed of the traction machine are adjusted to achieve smooth start and stop of the elevator and reduce mechanical shock; the input frequency of the motor is dynamically adjusted through the frequency converter to match the operating energy consumption requirements under different loads. By gently adjusting the torque and speed during the start and stop stages of the motor, mechanical shock and energy loss are reduced, the instantaneous impact load on mechanical components (such as gears and bearings) is suppressed, and the service life of the equipment is extended.

[0106] After receiving the leveling signal, the door control circuit triggers the door opening action, and the PID algorithm is used to adjust the speed of the door motor to ensure that the car door and the landing door open and close synchronously.

[0107] For the above technical solutions, the running accuracy is improved: the accurate docking of the elevator car is realized, and the response time is short; The safety level is strengthened: multiple safety monitoring parameters (such as the tension of the traction rope and the deviation of the guide rail) are integrated to improve the accuracy of fault prediction; The intelligent expansion ability: supports the OPC UA protocol to realize data interaction with the building management system, and the remote monitoring coverage rate reaches 100%; The specific structure of the circuit structure on the control panel will be described in detail below.

[0108] Combined with Figure 13 As shown, the control panel includes a main control board and an interface board connected to the main control board. The main control board is used to control the operation of the elevator; among them, the interface board is provided with an internal interface and an external interface. The main control board transmits signals internally with the elevator control system through the internal interface, and the main control board transmits signals externally with the elevator control system through the external interface; the internal interface includes an extended function interface, and the extended function interface is used to connect various safety monitoring devices for monitoring the elevator status and wireless communication devices.

[0109] As Figure 14As shown in the figure, the internal interfaces include a first interface and a second interface. A switching power supply is connected between the first interface and the second interface to supply power to the elevator controller. Among them, the first interface includes: an electrical safety door lock detection interface, a DC24V power supply detection interface, a contact 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 usage interface, and a machine room intercom interface. The extended function usage interface is connected to various types of sensors for monitoring the state of the traction machine and a wireless communication device.

[0110] Specifically, the functions implemented by each functional interface included in the first interface are as follows: ① Electrical safety door lock detection interface: It has the function of real-time monitoring of the door lock status of the elevator landing door and car door, and detecting whether the door lock circuit is conducting, and is used to judge whether the door is reliably closed and locked.

[0111] ② DC24V power supply detection interface, which is used to detect whether the DC24V power supply voltage of the main board is normal, and monitor the stability of the voltage, whether there is overvoltage or undervoltage.

[0112] ③ Contactor control interface: This interface is connected to execution elements such as the main contactor and the brake contactor. The main control board controls the contactor to be energized / opened through this interface to realize actions such as elevator start and brake, and avoid elevator out-of-control caused by contactor failures (such as forced operation when the brake is not released). ④ Emergency electric switch interface: Through this interface, it is connected to the emergency electric switch (located in the machine room or on the car top). Maintenance personnel can short-circuit some safety circuits (such as the overspeed governor and buffer switch) in the maintenance mode and manually control the elevator to run at low speed, which is convenient for in-shaft maintenance and car position adjustment (such as rescue leveling when people are trapped), and improves the emergency handling efficiency. ⑤ Power input interface: It provides power supply for the main control door machine system, enables the door machine to normally execute the door opening and closing actions. The connected power supplies include 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 passengers, and cooperate with the door lock detection to ensure safety.

[0113] The functions implemented by each functional interface included in the second interface are as follows: ① Early door opening function interface: It realizes the function of the elevator opening the car door in advance before stopping at the leveling position, which can optimize the elevator operation efficiency and shorten the waiting time of passengers. ② Extended function interface: It is used to connect various types of sensors (such as temperature sensors, encoders, position sensors, vibration sensors, etc.) to expand the functions of the elevator control system and realize the comprehensive monitoring of the operation state of the traction machine. ③ Optional machine room intercom interface: It establishes a voice communication channel between the machine room and the car, and between the machine room and the outside (such as the management room), which is convenient for machine room personnel to communicate with the personnel in the car or external personnel when the elevator fails or communication is needed.

[0114] In a specific embodiment, the sensors connected to the extended function interface include: ① A position sensor, arranged on the bottom plate 29 of the traction machine, monitors the working state of the traction sheave by detecting the left and right yaw displacement of the traction sheave. The position sensor is fixed on the extended function use interface through a wire harness. By monitoring the left and right yaw displacement of the traction sheave in real time, once it is found that the yaw exceeds the normal range, potential risks such as abnormal wear of the traction sheave, jumping of the traction rope, and even derailment can be warned in time, avoiding elevator operation failures caused by abnormal working states of the traction sheave, and effectively ensuring the safety of passengers' lives and equipment. Arranging the position sensor on the bottom plate 29 of the traction machine and connecting it to the extended function use interface through a wire harness enables accurate positioning of the traction sheave component failure when abnormal yaw is detected, facilitating maintenance personnel to quickly lock the problem and improving the fault diagnosis efficiency.

[0115] ② A temperature sensor, embedded in the motor stator assembly, and its lead-out terminal is fixed on the extended function interface through a hole in the motor rear housing, for real-time monitoring of the temperature of the stator assembly. Embedding the temperature sensor in the motor stator assembly can directly and accurately obtain the real-time temperature of the stator. Once the temperature exceeds the safety threshold, a warning or protection mechanism can be triggered in time to avoid damage to the motor due to overheating, effectively ensuring the safe and stable operation of the motor and extending the service life of the motor.

[0116] ③ An encoder, the housing of the encoder is fixed to the motor rear housing, and the rotating shaft is connected to the positioning shaft; the positioning shaft is coaxially fixed with the motor shaft, for indirectly calculating the speed of the traction sheave by detecting the speed of the motor shaft. By accurately detecting the speed of the motor shaft through the encoder and calculating the speed of the traction sheave in combination with the reduction ratio of the reducer, accurate speed feedback information can be provided for the elevator control system.

[0117] ④Vibration sensors, including a first vibration sensor and a second vibration sensor. The first vibration sensor is arranged on the surfaces of the non-driving end and the driving end bearing seats of the driving motor, and is used to monitor the radial or axial vibration signals of the front / rear bearings of the motor; the first vibration sensor is arranged on the bearing seat surfaces of the non-driving end (the rear shell of the motor) and the driving end (the rear housing 32 of the reducer), and can monitor the radial or axial vibration signals of the front / rear bearings of the motor. At the initial stage of faults such as wear, poor lubrication or fatigue cracks in the bearings, the vibration characteristics will change slightly. The sensor can detect these abnormal vibrations in time and give an early warning before the fault deteriorates, avoiding serious accidents such as the motor being stuck or stopped due to bearing faults and ensuring the safe operation of the elevator. The second vibration sensor is arranged in the bearing load area of the traction sheave and is used to monitor the vibration signals of the traction rope tension and the sheave groove wear. The second vibration sensor is set in the bearing load area of the traction sheave (the front end cover and the rear end cover of the traction sheave), and can effectively monitor the abnormal vibrations caused by the change of the traction rope tension and the wear of the sheave groove. Uneven traction rope tension is likely to cause risks of slipping and breaking, and the wear of the sheave groove will affect the traction capacity. By monitoring the relevant vibration signals, such potential hazards can be detected in time, preventing elevator operation failures caused by traction rope or sheave groove problems and ensuring the safety of passengers. Through the division of labor of the two types of vibration sensors to monitor different parts, when abnormal vibration signals are detected, the faulty components can be directly located. For example, if the vibration of the motor bearing is abnormal, it can be determined that the problem lies in the motor bearing; if the vibration in the traction sheave area is abnormal, it points to the traction rope or the sheave groove, helping maintenance personnel quickly lock the fault point, reducing the troubleshooting time and improving the maintenance efficiency.

[0118] ⑤An image acquisition device is used to monitor the stretching degree of the steel wire rope or the offset of the guide rail. Through the image acquisition device, subtle changes that cannot be detected by the human eye can be captured (such as the initial stage of single wire breakage of the steel wire rope and the millimeter-level offset of the guide rail), and an early warning can be given through the analysis of the background monitoring algorithm to avoid potential hazards evolving into serious faults.

[0119] In this embodiment, by connecting a wireless communication device (such as a 4G / 5G module, a Wi-Fi module), the elevator data collected by the sensors can be uploaded to the cloud management platform in real time. The operation and maintenance personnel do not need to conduct on-site inspections, and can remotely view the device operation parameters through a mobile phone or a computer, and grasp the elevator status in real time, greatly reducing the labor inspection cost, especially suitable for multi-machine room distributed management scenarios.

[0120] The external interface of the interface board of the controller circuit structure in the traction machine provided in this embodiment, such as Figure 15As shown, the external interfaces include a third interface and a fourth interface, where: The third interface includes: a hoistway safety cable interface, a traveling cable power / weak current plug interface, an external call communication cable interface, a pit intercom cable interface, an up / down switch rack cable interface; The fourth interface includes: a brake power plug interface, a car power plug interface, a host side emergency stop disk handwheel switch plug interface, a mains power interface, a speed governor switch plug interface, a spare input signal interface, and a host brake related plug interface.

[0121] Specifically, the functions of the interfaces included in the third interface are as follows: ① Hoistway safety cable interface: Connects the safety door lock devices on each floor in the hoistway, monitors the door lock status in real time, and ensures that the elevator landing doors are closed and locked properly. It is used to prevent people from accidentally opening the landing doors during elevator operation, avoid dangerous accidents such as falling, and ensure the safety of personnel in the hoistway and elevator operation. Once the door lock status is abnormal, it can trigger the elevator safety brake. ② Traveling cable interface: Connects the traveling cable between the car and the control cabinet, transmits car commands (such as internal call signals, door machine signals) and car status data (such as load weight, position signals), supports two-way communication between the car and the controller, and ensures the real-time transmission of signals such as internal call commands and door machine actions. ③ External call communication cable interface: Used to realize communication between the car and the external call panels on each floor, receive external call signals, and feedback the elevator operation status (such as floor display, running direction, etc.). It enables passengers to call the elevator on the floor and understand the elevator operation situation, improving the riding convenience and experience; at the same time, it helps the elevator control system to reasonably dispatch the elevator and improve the operation efficiency. ④ Pit intercom cable interface: Used to establish a voice communication connection between the pit and positions such as the car and the machine room, facilitating communication between maintenance personnel working in the pit and personnel in other positions. When maintaining and repairing the elevator in the pit, maintenance personnel can communicate with the outside world through this interface, timely feedback problems and obtain assistance, ensuring the safety and high efficiency of the maintenance work. ⑤ Up / down switch rack cable interface: Used to connect the equipment related to the up / down switch rack of the elevator, transmit control signals and status feedback signals, such as leveling signals, limit signals, etc. It can help the elevator accurately level and stop, prevent the elevator from overshooting or bottoming out, ensure the safety of elevator operation, and at the same time provide accurate position information for the elevator control system to optimize the operation control.

[0122] ⑤ Deceleration switch cable interface: Connects the deceleration switch in the hoistway. When the elevator approaches the target floor, it triggers a deceleration signal, controls the elevator to stop smoothly, improves the leveling accuracy and riding comfort, cooperates with the main control board to achieve speed closed-loop control, reduces mechanical impact, and extends the equipment life.

[0123] The interface functions included in the fourth interface are as follows: ① Brake power supply interface and car power supply interface: The brake power supply interface provides power for the brake device to control the opening and closing of the brake; the car power supply interface supplies power to the equipment inside the car. The brake power supply ensures the reliable operation of the brake, enabling the elevator to accurately brake when needed and preventing the elevator from slipping; the car power supply maintains the normal operation of the equipment inside the car, ensuring the comfort and safety of passengers. ② Handwheel switch interface: Connects the handwheel switch. When manually turning the wheel, it triggers a switch signal to cut off the elevator power supply, ensuring the safety of the handwheel operation, preventing the elevator from starting accidentally during the handwheel operation, and protecting the safety of maintenance personnel. ③ Mains power supply interface: Used to introduce mains power and provide the main power source for the elevator control system and related equipment. Thus, it ensures that the elevator obtains a stable power supply and maintains normal operation, which is the basic energy guarantee for the elevator operation. ④ Governor switch interface: Used to connect the governor switch. When the elevator running speed exceeds a certain value of the rated speed, the governor is triggered to act, and through this plug-in interface, it feeds back a signal to the elevator control system to trigger the safety braking device. It can prevent the elevator from running at high speed and avoid safety accidents caused by overspeed. It is an important safety protection device interface for ensuring the safe operation of the elevator. ⑤ Spare input interface: Used to connect spare devices, including: portable mobile device access port, product upgrade interface, and fault emergency interface. Among them, when a portable mobile device needs to be connected, the spare input signal interface can be used as a data interaction channel; the product upgrade interface is used when the product is upgraded and iterated. The spare input signal interface provides an access channel for new functional modules or improved signal sources without the need for large-scale transformation of the original system; the fault emergency interface is used when the main input signal is abnormal due to reasons such as line damage, signal source failure, and electromagnetic interference. The spare input signal interface can quickly access the spare signal source to maintain the basic function operation of the system. For example, in the elevator control system, if the main sensor signal is interrupted, after the spare sensor signal is connected, it can ensure that the elevator can still perform key operations such as safe docking and leveling, avoiding elevator shutdown or safety accidents caused by signal failures, and ensuring the continuous and stable operation of the equipment. ⑥ Main machine brake interface: Used to connect the control circuit and monitoring device related to the main machine brake to achieve precise control and status monitoring of the main machine brake. It is used to ensure that the main machine brake operates accurately and reliably, responds to the control system instructions in a timely manner, prevents the main machine from rotating accidentally, and improves the safety and stability of the traction machine operation.

[0124] In the embodiments of the present invention, the first interface is disposed on the first interface board, the second interface is disposed on the second interface board, the third interface is disposed on the third interface board, and the fourth interface is disposed on the fourth interface board. The first, second, third, and fourth interface boards are respectively connected to the main control board through a ribbon cable to achieve hierarchical signal transmission. For example, hierarchical signal transmission is respectively achieved through a 40P ribbon cable and the control board. Hierarchical transmission can reduce interference between different types of signals. For example, the internal control signals of the first interface and the second interface are hierarchically transmitted from the external control signals of the third interface and the fourth interface, avoiding interference of strong electrical signals on weak electrical control signals and sensor signals, ensuring accurate transmission of elevator control instructions, preventing elevator malfunction caused by signal disorder, and improving operation stability and safety. At the same time, the circuit layout is made 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 circuit according to signal hierarchy, shortening the troubleshooting time and reducing the maintenance difficulty and cost. The regular circuit layout is also beneficial to the installation and upgrade transformation of the elevator system. When functional expansion of the elevator control system is required, the hierarchical transmission structure can more conveniently access new devices or new functional modules. The newly added signals can be connected to the corresponding interface board according to their functional characteristics and hierarchically transmitted through a 40P ribbon cable and the control board, without large-scale modification of the original circuit, enhancing the scalability and adaptability of the system.

[0125] This embodiment takes advantage of the characteristic that the 40P ribbon cable has a large data transmission capacity. Combining with the hierarchical transmission method, different types of signals can be transmitted in parallel, giving full play to the data transmission ability of the ribbon cable, improving the signal transmission efficiency, enabling the control board to quickly receive and process various types of data, and achieving more accurate and efficient control of the elevator.

[0126] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. An intelligent control system, characterized in that, Comprising: A data acquisition layer, including a sensor network module and a fault code reading module; the sensor network module is used to read data of sensors arranged on the elevator to achieve parameter acquisition, so as to reflect the dynamic operation state of the elevator; the fault code reading module is used to obtain the elevator status code in real time to directly reflect the abnormal state of internal components of the elevator. A remote monitoring and data analysis layer, including 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 status information, and the elevator status information includes elevator fault prediction information and elevator optimal operation information; the remote interaction module is used to remotely transmit the elevator status information analyzed by the intelligent analysis module.

2. The intelligent control system according to claim 1, wherein The sensor network module is used 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.

3. The intelligent control system according to claim 1, characterized in that, The remote monitoring and data analysis layer further includes a data storage and calculation module, which is constructed based on the Internet of Things architecture and supports concurrent access of multiple Internet of Things devices, and is used to store the dynamic operation state data and abnormal state data obtained by the data acquisition layer; the data storage and calculation module adopts a time series database, and the time series database is configured to manage time series data collected by devices at high frequency.

4. A traction machine system, characterized in that, Comprising: A traction machine, 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 arranged on the motor assembly (4). The intelligent control system according to any one of claims 1-3, and the intelligent control system is integrally arranged on the controller assembly (5).

5. The traction machine system according to claim 4, characterized in that, The controller assembly (5) includes: A controller housing (51); A control board (52), the control board (52) is arranged inside the controller housing (51); the control board (52) includes a main control board and an interface board connected to each other, the intelligent control system is integrally arranged on the main control board, and the interface board is provided with expansion function interfaces for connecting the sensor network module and the remote interaction module.

6. The traction machine system according to claim 5, characterized in that, The motor assembly (4) includes: A motor housing; A motor shaft (41), the motor shaft (41) is rotatably arranged inside the motor housing, and the front end of the motor shaft (41) is coaxially connected to the traction machine assembly (2); A motor stator assembly (42), the motor stator assembly (42) is fixedly arranged inside the motor housing, and an accommodation cavity is axially formed in the motor stator assembly (42); a temperature sensor is arranged on the motor stator assembly (42) for real-time monitoring of the temperature of the motor stator assembly. A motor rotor assembly (45), the motor rotor assembly (45) is arranged in the accommodation cavity and is 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).

7. The traction machine system according to claim 6, characterized in that, An encoder (44) is connected to the motor assembly (4), and the controller assembly (5) and the encoder (44) are located on the same side of 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 formed in the rear end face of the motor shaft (41), a positioning shaft (43) is arranged in the positioning hole (414), and the encoder rotating part is fixedly arranged on the positioning shaft (43); the encoder outer ring (442) is coaxially arranged with the encoder rotating part (441) and is located outside the encoder rotating part (441), the encoder outer ring (442) is in interference fit with the encoder bracket (443), and the encoder bracket (443) is detachably arranged at the rear end of the motor housing; the controller housing (51) is detachably arranged at the rear end of the encoder bracket (443); the output line of the motor assembly (4) and the output line of the encoder (44) are connected to the interface board.

8. The traction machine system according to claim 6, wherein A speed reducer assembly (3) is further arranged between the traction machine assembly (2) and the motor assembly (4), and the speed reducer assembly (3) includes: A speed reducer housing, which is detachably arranged at the front end of the motor housing; A speed reducer input gear (35), which is coaxially connected to the output shaft end of the motor assembly (4); A speed reducer output gear (34), which is coaxially connected to the input shaft end of the traction machine assembly (2); A plurality of speed reducer double gears (33), each of the speed reducer double gears (33) is respectively rotatably arranged inside the speed reducer housing, the speed 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 of the first planetary gears (331) is circumferentially arranged outside the speed reducer input gear (35) and meshes with the speed reducer input gear (35), and each of the second planetary gears (332) is circumferentially arranged outside the speed reducer output gear (34) and meshes with the speed reducer output gear (34).

9. The traction machine system according to claim 8, wherein, The traction machine assembly (2) includes: A traction machine base, which is detachably arranged at the front end of the speed reducer housing; A traction machine shaft (26), the two ends of the traction machine shaft (26) are rotatably arranged inside the traction machine base; A traction wheel (22), which is connected to the traction machine shaft (26), and a winding groove (221) is arranged on the outer side wall of the traction wheel (22); the front section of the motor shaft (41) extends forward out of the motor housing and is fixedly connected to the speed reducer input gear (35); the rear section of the traction machine shaft (26) extends backward out of the traction machine base and is fixedly connected to the speed reducer output gear (34). A stepped hole (261) is formed on the rear end face of the traction machine shaft (26), and the front end of the motor shaft (41) is inserted into the stepped hole (261) and concentrically positioned with the traction machine shaft (26) through a bearing (47).

10. The traction machine system according to claim 9, characterized in that, 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.

Images