Reliable anti-falling method for oxygen lance lifting trolley

Abstract

A reliable oxygen lance lifting trolley anti-falling device comprises a lifting trolley body, the lifting trolley body comprises a pulley assembly, a roller assembly, a compression roller assembly and an anti-falling assembly, the roller assembly is connected with the pulley assembly, the pulley assembly is connected with the anti-falling assembly, and the anti-falling assembly comprises a clamping arm and a connecting rod mechanism. The pulley assembly and the roller assembly reciprocate up and down through the track, the connecting rod mechanism drives the brake block to contract inwards, and a gap is formed between the brake block and the track; a novel anti-falling mechanism is adopted, the reliability of the device in actual use is improved by improving a braking system and adding redundant safety measures, and the possibility of false triggering or non-triggering is reduced; by simplifying the structure of the anti-falling device and adopting materials easy to maintain, the maintenance cost can be reduced, and the service life of the device can be prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical engineering, and particularly to a reliable anti-falling method for the oxygen lance lifting trolley. Background Art

[0002] In modern industrial production, especially in the steelmaking process of the metallurgical industry, the oxygen lance lifting trolley is one of the key equipment, and the stability and safety of its operation are crucial. The oxygen lance lifting trolley is responsible for adjusting the height of the oxygen lance during the blowing process to ensure the smooth progress of the steelmaking reaction. However, due to the complex operating environment, frequent lifting actions, and possible emergencies such as power outages or mechanical failures, the anti-falling device of the oxygen lance lifting trolley is particularly important;

[0003] The existing technologies have the following problems:

[0004] 1. Slow response speed: In some existing anti-falling systems, it may take a certain amount of time from detecting an abnormal situation to triggering the anti-falling mechanism. During this period, the lifting trolley may have fallen a considerable distance, increasing the risk and severity of accidents.

[0005] 2. Insufficient reliability: Due to design or manufacturing defects, some anti-falling devices may malfunction or fail to trigger in actual use. False triggering may cause the lifting trolley to be locked incorrectly during normal operation, affecting production efficiency; while failure to trigger may cause the anti-falling device to fail at a critical moment, resulting in serious safety accidents.

[0006] 3. High maintenance cost: Some complex anti-falling systems require regular maintenance and inspection to ensure their normal operation. This not only increases the usage cost but also may cause the system to fail due to improper maintenance or omission.

[0007] 4. Poor environmental adaptability: In some harsh working environments, such as high temperature, high humidity, and dusty conditions, the performance of the anti-falling device may be affected. For example, sensors may fail due to dust accumulation, or mechanical components may deform due to high temperature.

[0008] 5. Complicated operation: Some anti-falling systems require operators to have a high skill level to correctly install, debug, and maintain. This may be a challenge for some operators lacking professional training or experience. Summary of the Invention

[0009] In order to overcome the above-mentioned disadvantages of the existing technologies, the object of the present invention is to provide a reliable anti-falling method for the oxygen lance lifting trolley, which is an anti-falling technology during the operation of the oxygen lance lifting trolley, and is a preventive measure designed for possible equipment failures or operation errors during the steelmaking process.

[0010] The technical solution adopted by the present invention to solve its technical problems is: a reliable anti-falling device for the oxygen lance lifting trolley, including the lifting trolley body, the lifting trolley body includes a pulley assembly, a roller assembly, a pressure roller assembly and an anti-falling assembly, the roller assembly is connected to the pulley assembly, the pulley assembly is connected to the anti-falling assembly, the anti-falling assembly includes a clamping arm and a linkage mechanism, the pulley assembly and the roller assembly reciprocate up and down through a track, and the linkage mechanism drives the brake block to contract inward, generating a gap with the track.

[0011] As a further improvement of the present invention: the pulley assembly is connected to a steel wire rope, the anti-falling assembly is connected to a quick-change platform, and the quick-change platform is connected to a lower support seat.

[0012] As a further improvement of the present invention: the lifting trolley body further includes a sensor and a monitoring and control system, and the sensor uses an oxygen lance tension sensor.

[0013] As a further improvement of the present invention: the detection and control system adopts microprocessor technology and sensor technology, the detection and control system has a fault self-diagnosis function and a remote monitoring function, and the sensors include an accelerometer, a displacement sensor, and a steel wire rope tension sensor.

[0014] As a further improvement of the present invention: the anti-falling assembly further includes a buffer mechanism, and the buffer mechanism is made of rubber or spring material.

[0015] As a further improvement of the present invention: the pressure roller assembly includes a pressure roller, a pressure roller bracket, a bearing, a bearing seat and a lubrication device, the pressure roller bracket is connected to the pressure roller, the bearing is installed on the pressure roller bracket, and the bearing seat is connected to the bearing.

[0016] As a further improvement of the present invention: the monitoring and control system includes a data acquisition card and a wireless communication module. The data acquisition card is responsible for receiving analog signals from each sensor, converting them into digital signals for processing and storage; the wireless communication module is responsible for real-time transmitting the processed data to the central controller or a remote monitoring terminal; and a redundant design and encryption technology are adopted to prevent data loss or tampering.

[0017] As a further improvement of the present invention: the accelerometer, the displacement sensor, and the steel wire rope tension sensor collect the motion state data of the lifting trolley body in real time; these data are transmitted to the central controller for processing and analysis; finally, the central controller determines whether the current state is safe according to the preset safety threshold and algorithm model; if an abnormal situation is found, the central controller will immediately issue an instruction to the anti-falling assembly, making it act quickly to firmly lock the lifting trolley body on the track and prevent the occurrence of a falling accident.

[0018] As a further improvement of the present invention: the accelerometer is used to detect the acceleration change of the lifting trolley, the displacement sensor is used to measure the displacement of the trolley, and the wire rope tension sensor is used to monitor the tension state of the wire rope.

[0019] As a further improvement of the present invention: the anti-falling component can adapt to tracks of different specifications and models, ensuring universality and flexibility in various environments; for lifting trolley bodies of different types and sizes, the anti-falling component can be perfectly adapted and achieve the best effect.

[0020] As a further improvement of the present invention: the clamping arms are redundantly designed to ensure that when the lifting trolley body falls, the anti-falling component can immediately take over and prevent the oxygen lance lifting trolley body from falling.

[0021] As a further improvement of the present invention: its clamping arms can be opened and closed under the action of the driving device. When the sensor detects an abnormal descending speed of the lifting trolley body, the control circuit issues an instruction, the driving device starts, the clamping arms quickly close, tightly clamp the track, and prevent the further sliding of the lifting trolley body through the friction between the track and the clamping arms.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] The present invention adopts a new anti-falling mechanism, improves the reliability of the device in actual use, and reduces the possibility of false triggering or non-triggering by improving the braking system and adding redundant safety measures;

[0024] By simplifying the structure of the anti-falling device and using easily maintainable materials, the present invention can reduce the maintenance cost and extend the service life of the device. At the same time, the intelligent monitoring system can automatically detect the health status of the device, give early warnings of potential problems, and thus reduce the unexpected downtime;

[0025] The present invention fully considers the influence of harsh working environments on the anti-falling device, adopts dust-proof, high-temperature resistant, corrosion-resistant and other materials and technologies to ensure the stable operation of the device in various environments.

[0026] In summary, through a series of innovative improvements, the present invention solves the technical problems such as slow response speed, insufficient reliability, high maintenance cost, poor environmental adaptability and complex operation existing in the existing anti-falling device of the oxygen lance lifting trolley, and provides a safer, more efficient and reliable anti-falling solution for the steelmaking industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the front view structural schematic diagram of the present invention;

[0028] Figure 2 is the left view structural schematic diagram of the present invention;

[0029] Figure 3 This is a schematic top view structure diagram of the present invention;

[0030] In the figure: 1. Lifting trolley body; 2. Pulley assembly; 3. Roller assembly; 4. Pressure roller assembly; 5. Anti-falling assembly; 6. Quick-change platform; 7. Lower support base. Specific embodiments

[0031] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.

[0032] It should be noted that the terms "including" and "having" and any variations thereof in the description and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0033] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0034] Now, the present invention will be further described in conjunction with the drawings and embodiments: As Figures 1-3 shown, a reliable anti-falling device for the oxygen lance lifting trolley includes a lifting trolley body 1. The lifting trolley body 1 includes a pulley assembly 2, a roller assembly 3, a pressure roller assembly 4 and an anti-falling assembly 5. The roller assembly 3 is connected to the pulley assembly 2, the pulley assembly 2 is connected to the anti-falling assembly 5. The anti-falling assembly 5 includes a clamping arm and a link mechanism. The pulley assembly 2 and the roller assembly 3 perform reciprocating up and down movements through a track, and the link mechanism drives the brake block to contract inward, generating a gap with the track.

[0035] As a preferred embodiment, the pulley assembly 2 is connected to a steel wire rope, the anti-falling assembly 5 is connected to a quick-change platform 6, and the quick-change platform 6 is connected to a lower support base 7.

[0036] As a preferred embodiment, the lifting trolley body 1 further includes a sensor and a monitoring and control system, and the sensor uses an oxygen lance tension sensor.

[0037] As a preferred embodiment, the detection and control system uses microprocessor technology and sensor technology. The detection and control system has a fault self-diagnosis function and a remote monitoring function. The sensors include an accelerometer, a displacement sensor, and a wire rope tension sensor.

[0038] As a preferred embodiment, the anti-falling component 5 further includes a buffer mechanism, and the buffer mechanism is made of rubber or spring material.

[0039] As a preferred embodiment, the pressure roller assembly 4 includes a pressure roller, a pressure roller bracket, a bearing, a bearing seat, and a lubrication device. The pressure roller bracket is connected to the pressure roller, the bearing is installed on the pressure roller bracket, and the bearing seat is connected to the bearing.

[0040] As a preferred embodiment, the monitoring and control system includes a data acquisition card and a wireless communication module. The data acquisition card is responsible for receiving analog signals from each sensor, converting them into digital signals for processing and storage. The wireless communication module is responsible for transmitting the processed data to the central controller or the remote monitoring terminal in real time. Redundant design and encryption technology are adopted to prevent data loss or tampering.

[0041] As a preferred embodiment, the accelerometer, the displacement sensor, and the wire rope tension sensor collect the motion state data of the lifting trolley body in real time. These data are transmitted to the central controller for processing and analysis. Finally, the central controller determines whether the current state is safe according to the preset safety threshold and algorithm model. If an abnormal situation is found, the central controller will immediately issue an instruction to the anti-falling component to make it act quickly and firmly lock the lifting trolley body on the track to prevent the occurrence of a falling accident.

[0042] As a preferred embodiment, the buffer mechanism plays a buffering role during the clamping process, reducing the impact on the lifting trolley body and the track. It has good energy absorption effect and shock absorption performance. The design of the buffer mechanism increases its service life and maintenance cost.

[0043] As a preferred embodiment, the lifting trolley body 1 is composed of a frame, a wheel assembly, a pressure roller assembly, a transmission device, a fall prevention assembly 5, an electrical control system, etc. The frame serves as the main frame of the trolley, bearing the weight of all components and undergoing complex stress effects. The wheel assembly is responsible for supporting the weight of the frame and the entire oxygen lance system and rolling smoothly on the track to ensure the smooth lifting movement of the oxygen lance. The pressure roller assembly is installed on the frame and closely cooperates with the fixed guide rail, restricting the lateral displacement of the frame and ensuring the verticality during the lifting of the oxygen lance. The transmission device usually uses a universal coupling to transmit power to the roller, driving the trolley to move up and down through the friction between the roller and the fixed guide rail. The fall prevention assembly 5 is used to quickly stop the operation of the trolley when needed to ensure the safety of operators and equipment. The electrical control system is responsible for controlling the start, stop, speed adjustment, and position feedback of the trolley to ensure precise control of the entire lifting process.

[0044] As a preferred embodiment, the installation position of the pressure roller assembly 4 on the lifting trolley body 1 is usually on both sides or the bottom of the frame (specifically depending on the design structure of the trolley) to ensure stable support and guidance of the movement of the trolley during the lifting of the oxygen lance. During installation, the pressure roller bracket should first be fixed on the frame according to the design requirements, and then the bearing should be installed on the bracket through the bearing seat. Then the pressure roller is installed on the bearing, and the inner ring of the bearing is fastened to the pressure roller through the connecting bolt. Finally, the lubrication device is installed and connected to the bearing part. During the installation process, attention should be paid to the installation sequence and positional relationship of each component to ensure that all components are installed in place and meet the design requirements.

[0045] The working principle of the present invention:

[0046] The present invention utilizes the working principle of the lifting trolley body to achieve the lifting movement of the lifting trolley body based on the friction between the roller and the fixed guide rail. When the pulley assembly receives an instruction from the electrical control system, it transmits power to the roller assembly through the steel wire rope. The roller assembly rotates on the fixed guide rail, thereby driving the entire lifting trolley body to move vertically along the guide rail. During this process, the pressure roller assembly always maintains close contact with the fixed guide rail to ensure the stability and verticality of the frame. When the oxygen lance needs to be replaced, the control system will first issue an instruction to make the trolley rise to the designated position, and then fix the trolley on the track through the fall prevention assembly. The operator can then perform the oxygen lance replacement operation. After completion, the trolley descends to the working position and continues to participate in the blowing process. Throughout the process, the electrical control system monitors the position and speed information of the trolley in real time through sensors to ensure the accuracy and safety of the operation.

[0047] Embodiment Case 1:

[0048] Such as Figures 1-3A reliable anti-falling device for the oxygen lance lifting trolley shown in the figure, comprising a lifting trolley body 1, wherein the lifting trolley body 1 includes a pulley assembly 2, a roller assembly 3, a pressure roller assembly 4 and an anti-falling assembly 5. The roller assembly 3 is connected to the pulley assembly 2, the pulley assembly 2 is connected to the anti-falling assembly 5. The anti-falling assembly 5 includes a clamping arm and a link mechanism. The pulley assembly 2 and the roller assembly 3 perform reciprocating up and down movements through a track, and the link mechanism drives the brake block to contract inward, generating a gap with the track.

[0049] The pulley assembly 2 is connected to a steel wire rope, the anti-falling assembly 5 is connected to a quick-change platform 6, the quick-change platform 6 is connected to a lower support seat 7. The lifting trolley body 1 further includes a sensor and a monitoring and control system. The sensor uses an oxygen lance tension sensor. The detection and control system uses microprocessor technology and sensor technology. The detection and control system has a fault self-diagnosis function and a remote monitoring function. The sensor includes an accelerometer, a displacement sensor, and a steel wire rope tension sensor. The anti-falling assembly 5 further includes a buffer mechanism, which is made of rubber or spring material. The pressure roller assembly 4 includes a pressure roller, a pressure roller bracket, a bearing, a bearing seat and a lubrication device. The pressure roller bracket is connected to the pressure roller, the bearing is installed on the pressure roller bracket, the bearing seat is connected to the bearing. The monitoring and control system includes a data acquisition card and a wireless communication module. The data acquisition card is responsible for receiving analog signals from each sensor, converting them into digital signals for processing and storage. The wireless communication module is responsible for transmitting the processed data to a central controller or a remote monitoring terminal in real time. Redundant design and encryption technology are adopted to prevent data loss or tampering. The accelerometer, displacement sensor, and steel wire rope tension sensor collect the motion state data of the lifting trolley body in real time. These data are transmitted to the central controller for processing and analysis. Finally, the central controller judges whether the current state is safe according to a preset safety threshold and algorithm model. If an abnormal situation is found, the central controller will immediately issue an instruction to the anti-falling assembly, making it act quickly to firmly lock the lifting trolley body on the track and prevent the occurrence of a falling accident.

[0050] Innovative design of the anti-falling device: The present invention creates a new type of anti-falling device, which has the characteristics of simple structure, high reliability, and fast response speed. The key anti-falling assembly 5 in the device is carefully designed and optimized, and can be quickly triggered when an abnormal situation is detected, effectively preventing the lifting trolley from continuing to fall.

[0051] Intelligent Monitoring and Control System: The present invention also introduces an intelligent monitoring and control system, which can monitor the running state of the lifting trolley and the integrity of key components in real time. Through advanced sensors (such as oxygen lance tension sensors) and algorithms, the system can accurately judge abnormal situations and automatically trigger the anti-falling device. At the same time, the system can also provide fault early warning and alarm functions to help operators discover and handle potential risks in a timely manner.

[0052] Improved Environmental Adaptability: In view of the influence of harsh working environments on the anti-falling device, the present invention adopts special materials and coating technologies to improve the dust-proof, high-temperature resistance, corrosion resistance and other performances of the device. This enables the anti-falling device to work stably in various complex environments and ensures the safety of the lifting trolley.

[0053] Operational Convenience and User-friendly Design: To facilitate the operation and maintenance of the operator, the present invention conducts user-friendly design on the operation interface and control system of the anti-falling device. The operation interface is simple and clear, easy to understand and operate; the control system has a high degree of intelligence and can automatically complete many cumbersome tasks, reducing the labor intensity of the operator.

[0054] In summary, through a series of innovative technical contents, the present invention improves the reliability, response speed and environmental adaptability of the anti-falling method for the oxygen lance lifting trolley, simplifies the operation process at the same time, and provides an efficient and safe anti-falling solution for the steelmaking industry.

[0055] Embodiment 2:

[0056] In this embodiment, as Figures 1-3 shown, a reliable anti-falling device for the oxygen lance lifting trolley has the same technical means as the anti-falling device in Embodiment 1.

[0057] In this embodiment, when the steel wire rope suddenly breaks, the link mechanism pops out at the same time, driving the clamping arm to rise. Since the gap between the clamping arm and the track is fixed, after the clamping arm moves upward, the gap between its straight surface part and the track instantaneously decreases until they fit, and the friction between the friction plate and the track is used to stop the falling trolley from falling, realizing rapid locking.

[0058] During the operation of the lifting trolley body 1, the pressure roller assembly 4 plays a crucial role in force transmission and distribution. When the oxygen lance and its bracket are connected to the lifting trolley body 1 through the pulley assembly 2, the gravity of the oxygen lance and the additional forces generated during the blowing process (such as gas flow impact force) will be transmitted to the lifting trolley through the connection points. At this time, the pressure roller assembly 4 undertakes the task of evenly distributing these forces to the fixed guide rail. Specifically, the vertically downward gravity generated by the oxygen lance is first transmitted to the frame of the lifting trolley. Since the pressure roller assembly 4 is tightly connected to the frame, this part of the gravity is further transmitted to the pressure rollers. Under the constraint of the fixed guide rail, the pressure rollers disperse the gravity to each contact point of the guide rail. In this way, the gravity originally borne by a single or a few connection points is evenly distributed over a larger contact area of the guide rail, thus significantly reducing the force borne by a single connection point and improving the stability and safety of the entire system. At the same time, during the lifting process of the oxygen lance, in addition to gravity, horizontal component forces will also be generated (such as inertial forces generated when the trolley starts, stops, or changes speed). The pressure roller assembly 4 can also effectively transmit these horizontal forces to the fixed guide rail to ensure that the trolley can maintain stable movement in the horizontal direction.

[0059] The main functions of the present invention:

[0060] The present invention includes various technical means, such as mechanical braking, safety monitoring, etc., to ensure that when the lifting trolley falls, it can be quickly and effectively braked to prevent the trolley from continuing to fall. At the same time, this method also considers factors such as the convenience of operation, the simplicity of maintenance, and the economy of cost, to ensure that it can be widely promoted and applied in practical applications.

[0061] Under the conditions of simulating actual working conditions, different magnitudes of static loads are applied to the anti-falling component, and its deformation and stress distribution are measured. By comparing the test data with the design standards, the bearing capacity and safety of the anti-falling component are evaluated;

[0062] The anti-falling component is subjected to dynamic impact testing using a drop hammer impact testing machine to simulate the impact situation when the lifting trolley body suddenly gets out of control. The parameter changes such as acceleration and displacement during the impact process are recorded, and the anti-impact performance of the anti-falling component is analyzed;

[0063] The anti-falling component is subjected to fatigue life testing by means of long-term repeated loading and unloading. Observe the wear situation and performance changes of the anti-falling component after a certain number of cycles, and evaluate its durability and reliability;

[0064] The anti-falling component is placed in harsh environments such as high temperature, low temperature, and humidity for testing, and its performance changes are observed. By comparing the test data in different environments, the environmental adaptability and stability of the anti-falling component are evaluated.

[0065] In summary, after reading the present invention document, those of ordinary skill in the art can make various corresponding transformation schemes without creative mental labor according to the technical solutions and technical concepts of the present invention, and all of them fall within the scope protected by the present invention.

[0066] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "upper end face", "lower end face", "top", "bottom", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention. Therefore, it cannot be construed as a limitation on the actual use direction of the present invention.

[0067] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.

Claims

1. A reliable anti-falling device for the oxygen lance lifting trolley, characterized in that, It includes a lifting trolley body, and the lifting trolley body includes a pulley assembly, a roller assembly, a pressure roller assembly and a fall prevention assembly. The roller assembly is connected to the pulley assembly, the pulley assembly is connected to the fall prevention assembly. The fall prevention assembly includes clamping arms and a linkage mechanism. The pulley assembly and the roller assembly perform reciprocating up and down movements through a track, and the linkage mechanism drives the brake blocks to contract inward, creating a gap with the track.

2. The reliable anti-falling device for the oxygen lance lifting trolley according to claim 1, characterized in that, The pulley assembly is connected to a steel wire rope, the fall prevention assembly is connected to a quick-change platform, and the quick-change platform is connected to a lower support seat.

3. A reliable anti-falling device for the oxygen lance lifting trolley according to claim 1, characterized in that, The lifting trolley body further includes sensors and a monitoring and control system, and the sensors adopt oxygen lance tension sensors.

4. A reliable anti-falling device for the oxygen lance lifting trolley according to claim 3, characterized in that The detection and control system adopts microprocessor technology and sensor technology. The detection and control system has a fault self-diagnosis function and a remote monitoring function. The sensors include an accelerometer, a displacement sensor, and a steel wire rope tension sensor.

5. A reliable anti-falling device for the oxygen lance lifting trolley according to claim 1, characterized in that, The fall prevention assembly further includes a buffer mechanism, and the buffer mechanism is made of rubber or spring materials.

6. A reliable anti-falling device for the oxygen lance lifting trolley according to claim 1, characterized in that, The pressure roller assembly includes a pressure roller, a pressure roller bracket, bearings, bearing seats and a lubrication device. The pressure roller bracket is connected to the pressure roller, the bearings are installed on the pressure roller bracket, and the bearing seats are connected to the bearings.

7. A reliable anti-falling device for the oxygen lance lifting trolley according to claim 3, characterized in that, The monitoring and control system includes a data acquisition card and a wireless communication module. The data acquisition card is responsible for receiving analog signals from each sensor, converting them into digital signals for processing and storage. The wireless communication module is responsible for transmitting the processed data to a central controller or a remote monitoring terminal in real time, and redundant design and encryption technology are adopted to prevent data loss or tampering.

8. A reliable anti-falling device for the oxygen lance lifting trolley according to claim 3, characterized in that, The accelerometer, displacement sensor, and steel wire rope tension sensor collect the motion state data of the lifting trolley body in real time. These data are transmitted to the central controller for processing and analysis. Finally, the central controller judges whether the current state is safe according to preset safety thresholds and algorithm models. If an abnormal situation is found, the central controller will immediately send an instruction to the fall prevention assembly to make it act quickly and firmly lock the lifting trolley body on the track to prevent the occurrence of a falling accident.

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