Steel coil transport trolley provided with lifting apparatus and method of use

By combining real-time monitoring with laser rangefinders and proximity switches with automated control via Siemens PLC, the problems of complex operation and poor safety of existing steel coil transport equipment have been solved, achieving efficient, safe, and convenient steel coil transport and reducing transportation costs.

WO2026007220A1PCT designated stage Publication Date: 2026-01-08BAOMEITE (SHANGHAI) INTELLIGENT ENG CO LTD
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Patent Information

Application Number
PCT/CN2024/115423
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-07-03
Filing Date
2024-08-29
Publication Date
2026-01-08

AI Technical Summary

Technical Problem

Existing steel coil transport equipment suffers from problems such as complex operation, low efficiency, poor safety, high labor intensity due to manual control, and high labor costs.

Method used

The system employs a laser rangefinder and proximity switch to monitor the trolley's position in real time, combined with a Siemens PLC for automated control. It utilizes lifting cylinders and guide rail sliders to ensure stable transmission, and is equipped with a drive motor and buffer pads to enhance safety, thus achieving efficient and safe steel coil transportation.

Benefits of technology

It improved the efficiency and safety of steel coil transportation, reduced equipment failure rate and labor costs, and achieved efficient, safe and convenient logistics transportation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the technical field of steel coil transport devices. Provided are a steel coil transport trolley provided with a lifting apparatus and a method of use, said apparatus comprising a vehicle frame, a transmission rail, and a wireless transmitter. Rail wheel sets are connected by means of bolts on two sides of a front surface and of a back surface of the vehicle frame. Wheels are mounted inside of the rail wheel sets, and the bottoms of the wheels and the transmission rail match one another. A front surface of each rail wheel set is in transmission connection with a transmission motor. Sensing elements such as a proximity switch and a laser rangefinder are used to monitor a position of the trolley and a state of a steel coil in real time, so as to ensure the smooth progress of the whole process. The use of the laser rangefinder ensures that the trolley can accurately reach a specified position, improving the working efficiency and safety; a guide rail slider transmission mechanism ensures the stability and accuracy of a scissor lift, reducing the rate of failure and maintenance costs of the device; and the introduction of a Siemens PLC achieves automated control of the whole process, improving the production efficiency and reducing the labor costs.
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Description

Steel coil transport trolley of lifting device and use method TECHNICAL FIELD

[0001] The present application relates to the technical field of steel coil transport equipment, in particular to a steel coil transport trolley of lifting device and use method. BACKGROUND

[0002] According to Chinese patent No. CN 116513247 A, a steel coil transport vehicle. It comprises a vehicle chassis, the vehicle chassis is welded with a supporting bottom plate, the supporting bottom plate is a groove type bottom plate or a boss type bottom plate, and a limiting hole is opened on the upper plane of the groove type bottom plate or the boss type bottom plate. The present application has the following advantages: simple and reasonable structure, fast and convenient use; can design and manufacture freight flat cars and open cars, and cooperate with special rubber anti-skid pads, etc., which can be widely used in railway transportation of various goods, has high bearing strength, low manufacturing cost, effectively replaces the traditional mode of fixed products such as concave grass support pad and steel seat frame for steel coil transportation, and can fully meet the requirements of transportation goods reinforcement after railway freight car speedup and heavy load.

[0003] At present, in cold rolling and hot rolling places, the transportation of steel coils is mainly by steel coil transport trolley, crane and other equipment. Although the steel coil transport equipment in the prior art can meet the requirements of transportation goods reinforcement after speedup and heavy load, there are still the following problems in actual use: (1) complex operation and low efficiency; (2) poor safety and hidden safety hazards; (3) high labor intensity and high labor cost of manual control.

[0004] SUMMARY

[0005] Technical problems solved

[0006] In view of the deficiencies of the prior art, the present application provides a steel coil transport trolley of lifting device and use method, which solves the problems of complex operation, low efficiency, poor safety, hidden safety hazards, high labor intensity and high labor cost of manual control, realizes efficient, safe and convenient transportation of steel coils, improves the logistics transportation efficiency and reduces the transportation cost.

[0007] Technical scheme

[0008] In order to achieve the above purpose, the present application is realized by the following technical scheme: a steel coil transport trolley of lifting device and use method, comprising a vehicle frame, a transmission track and a wireless transmitter, the front and back sides of the vehicle frame are bolted with track wheel sets, the inside of the track wheel set is installed with a wheel, the bottom of the wheel is matched with the transmission track, and the front of the track wheel set is drivingly connected with a transmission motor.

[0009] Preferably, adjacent one column of rail wheel groups is connected with a wheel axle, the side of the rail wheel group is provided with an anti-collision interface, and the side of the rail wheel group is provided with a buffer pad, and the front of the anti-collision interface is bolted with an anti-collision block.

[0010] Preferably, the front of the vehicle frame is embedded with a laser range finder, and the side close to the laser range finder of the front of the vehicle frame is electrically connected with a proximity switch.

[0011] Preferably, the middle part of the front of the vehicle frame close to the laser range finder and the proximity switch is provided with a wireless transmitter, and the laser range finder and the proximity switch are electrically connected with the wireless transmitter.

[0012] Preferably, the two sides of the vehicle frame are provided with lifting oil cylinders, and the top of the lifting oil cylinders is screw-connected with a lifting saddle.

[0013] Preferably, the inside of the vehicle frame close to the two sides of the lifting oil cylinders is provided with a lifting shear.

[0014] Preferably, the top of the front of the vehicle frame is provided with a guide rail sliding block.

[0015] A steel coil transport trolley of a lifting device and a use method, the use process of the transport trolley is as follows:

[0016] Sp1: the vehicle body runs to a specified position, the lifting shear is ejected through the lifting oil cylinder, and the steel coil is conveyed through the top pad of the lifting saddle driven by the guide rail sliding block; after the steel coil trolley reaches the specified area, the lifting oil cylinder is lowered through the magnetic switch, and when the lifting shear is lowered, the steel coil falls on the lifting saddle and waits for the machine to be packed;

[0017] Sp2: the wheel rim surface is quenched, and the two sides of the transmission motor drive the wheel axle, and the anti-collision block is added at the anti-collision interface.

[0018] Sp3: the laser range finder and the proximity switch transmit the detection data to the remote control system through the wireless transmitter in real time, and the remote control system remotely acquires position state information, transportation state information and environmental parameter information. Advantages

[0019] The application provides a steel coil transport trolley of a lifting device and a use method.

[0020] 1、The application utilizes sensing elements such as proximity switches and laser range finders to monitor the position of the trolley and the state of the steel coil in real time, ensuring smooth operation of the entire process, and the application of laser range finders ensures that the trolley can accurately reach the designated position, improving work efficiency and safety, the guide rail slider transmission mechanism ensures the stability and accuracy of the lifting shear, reduces the equipment failure rate and maintenance cost, the introduction of Siemens PLC realizes the automatic control of the entire process, improves the production efficiency and reduces the labor cost, and the application of sensing elements such as proximity switches and laser range finders enables the system to monitor the position of the trolley and the state of the steel coil in real time, making timely intervention and adjustment possible.

[0021] 2、In the application, the Siemens PLC realizes real-time monitoring of the state of the steel coil through an industrial intelligent gateway and an online monitoring terminal. Through remote monitoring control, intelligent early warning and alarm functions, users can understand various information of the steel coil and the automatic field at any time and anywhere, improve management efficiency, and reduce labor cost. Meanwhile, the system has the characteristics of high efficiency, richness and flexibility, and can meet various needs of enterprises.

[0022] 3、The application solves the problems of complex operation, low efficiency, poor safety, safety hazards and high labor intensity and labor cost of manual control, realizes efficient, safe and convenient transportation of the steel coil, improves logistics transportation efficiency, and reduces transportation cost. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 is a whole structure diagram of the application;

[0024] Fig. 2 is a whole structure top view of the application;

[0025] Fig. 3 is a component structure diagram of the application;

[0026] Fig. 4 is a remote control flow chart of the application.

[0027] 1, lifting saddle; 2, lifting cylinder; 3, transmission motor; 4, lifting shear; 5, track wheel set; 6, buffer pad; 7, guide rail slider; 8, vehicle frame; 9, transmission track; 10, wireless transmitter; 11, laser range finder; 12, proximity switch; 13, wheel; 14, wheel shaft; 15, anti-collision joint. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application.

[0029] Embodiment 1:

[0030] As shown in FIGS. 1-4, a steel coil transport trolley of a lifting device and a method of use, comprising a trolley frame 8, a transmission track 9 and a wireless transmitter 10, the front and back of the trolley frame 8 are bolted on both sides of the track wheel set 5, the inside of the track wheel set 5 is installed with a wheel 13, the bottom of the wheel 13 and the transmission track 9 are matched with each other, and the front of the track wheel set 5 is drivingly connected with a transmission motor 3.

[0031] The adjacent track wheel set 5 is connected with a wheel shaft 14, the side of the track wheel set 5 is provided with an anti-collision interface 15, the side of the track wheel set 5 is installed with a buffer pad 6, and the front of the anti-collision interface 15 is bolted with an anti-collision block.

[0032] The front of the trolley frame 8 is embedded with a laser range finder 11, and the front of the trolley frame 8 is electrically connected with a proximity switch 12 on the side close to the laser range finder 11.

[0033] The wireless transmitter 10 is installed on the middle part of the front of the trolley frame 8 close to the laser range finder 11 and the proximity switch 12, and the laser range finder 11 and the proximity switch 12 are electrically connected with the wireless transmitter 10.

[0034] Both sides of the trolley frame 8 are installed with lifting oil cylinders 2, and the top of the two lifting oil cylinders 2 is screw-connected with a lifting saddle 1.

[0035] The inside of the trolley frame 8 is installed with a lifting shear 4 between the two lifting oil cylinders 2.

[0036] The top of the front of the trolley frame 8 is slidingly connected with a guide rail sliding block 7.

[0037] A steel coil transport trolley of a lifting device and a method of use, the transport trolley uses the following process:

[0038] Sp1: The vehicle body runs to the specified position, the lifting shear 4 is ejected by the lifting oil cylinder 2, and the steel coil is conveyed by the lifting saddle 1 through the transmission of the guide rail sliding block 7, and the steel coil trolley reaches the specified area, and the lifting oil cylinder 2 is lowered by the magnetic switch, when the lifting shear 4 is lowered, the steel coil will fall on the lifting saddle 1 and wait for the machine to pack, and the process is automatically controlled by the Siemens PLC.

[0039] Sp2: The wheel rim surface of the wheel 13 is quenched, and the two transmission motors 3 drive the wheel shaft 14 at the same time, and the anti-collision block is increased at the anti-collision interface 15;

[0040] Sp3: The laser range finder 11 and the proximity switch 12 transmit the detection data to the remote control system in real time through the wireless transmitter 10, and the remote control system remotely acquires the position state information, the transportation state information and the environmental parameter information.

[0041] The entire working process of the steel coil transport trolley embodies a high degree of automation and precise control. Here is a summary of the process and specific usage:

[0042] Workflow Overview

[0043] Starting and positioning:

[0044] The steel coil trolley is driven by a transmission motor 3 and runs according to a preset path or instructions. The trolley is precisely positioned using a laser range finder 11 to ensure that it can accurately reach the designated steel coil extraction position.

[0045] Steel coil ejection:

[0046] When the trolley reaches the designated position, the lifting shear 4 is ejected under the action of the lifting cylinder 2. This process is achieved through the transmission of the guide rail slider 7 to ensure the stability and accurate action of the lifting shear 4.

[0047] Steel coil transfer:

[0048] After the lifting shear 4 ejects the steel coil, the lifting saddle 1 is then lifted by the top pad to prepare for the transfer of the steel coil. The steel coil is stably transferred to the next designated area by the steel coil trolley under the support of the saddle pad.

[0049] Steel coil unloading:

[0050] After the steel coil trolley reaches the designated area, the magnetic switch on the hydraulic cylinder controls the lowering cylinder, causing the lifting shear 4 to descend. When the lifting shear 4 descends to a certain position, the steel coil will be smoothly placed on the fixed lifting saddle 1, waiting for subsequent packaging operations.

[0051] Automatic control:

[0052] Throughout the process, the Siemens PLC (Programmable Logic Controller) plays a core role, achieving precise control of the steel coil trolley, lifting shear 4, lifting saddle 1, and other components through preset programs and algorithms.

[0053] Using proximity switches 12 and laser range finders 11 and other sensing elements, the position of the trolley and the state of the steel coil are monitored in real time to ensure smooth operation of the entire process. It should be noted that the proximity switch 12 and the laser range finder 11 can be installed on the trolley body, along the track, or near the end point.

[0054] Technical features and advantages

[0055] High-precision positioning: The application of laser range finder 11 ensures that the trolley can accurately reach the designated position, improving work efficiency and safety.

[0056] Stable transmission: The guide rail slider 7 transmission mechanism ensures the stability and precision of the lifting shears 4, reducing equipment failure rate and maintenance cost.

[0057] Intelligent control: The introduction of Siemens PLC realizes the automation control of the whole process, improves the production efficiency and reduces the labor cost.

[0058] Real-time monitoring: The application of proximity switch 12 and laser range finder 11 and other sensing elements enables the system to monitor the position of the trolley and the state of the steel coil in real time, providing the possibility for timely intervention and adjustment.

[0059] This workflow reflects the wide application and high integration of modern industrial automation technology, providing an efficient, stable and safe solution for steel coil transportation and packaging production links.

[0060] Specific embodiment two:

[0061] As shown in FIG. 1-4, the process of Siemens PLC real-time monitoring of steel coil state can be summarized as follows, using point representation and induction:

[0062] 1. Composition of monitoring system

[0063] Industrial intelligent gateway: As a bridge connecting the field PLC and remote monitoring terminal, it realizes protocol analysis and conversion, ensuring data communication between the remote monitoring terminal and the PLC.

[0064] Online monitoring terminal: Supports mobile phone APP, computer Web terminal, field touch screen and other terminals, users can access the monitoring system at any time through these terminals.

[0065] 2. Realization of monitoring function

[0066] Remote monitoring and control:

[0067] The gateway connects the PLC through RS485 / RS232 and network interface, automatically adapts MPI, PPI, Modbus and other protocols for real-time data collection.

[0068] Users can view the cloud platform or industrial configuration through mobile phones or computers and other terminals to intuitively view the running state of field equipment and environmental parameters.

[0069] Realize remote control and management, such as controlling the operation of the steel coil trolley and the lifting of the lifting shears 4.

[0070] Intelligent early warning:

[0071] Early warning through WeChat, SMS, APP, email, sound and light, etc.

[0072] Support custom alarm thresholds, such as when the coil position is abnormal, the lifting shear 4 lifting is overtime, etc. The system can automatically trigger an alarm.

[0073] 3. Features of the monitoring system

[0074] Efficiency: Through high-speed networks such as 5G / 4G / WIFI / Ethernet, real-time monitoring is achieved, ensuring real-time and accuracy of data.

[0075] Richness: Complete functions, support multiple terminal access, simple and efficient operation, and elegant interface.

[0076] Flexibility: Support secondary editing, can adapt to the individual development needs of enterprises, better adapt to industrial site environment.

[0077] 4. Monitoring of coil status

[0078] Position state: Real-time monitoring of the position of the coil car through laser range finder 11, proximity switch 12 and other sensors, to ensure that the car can accurately reach the designated position for the extraction and unloading of the coil.

[0079] Running state: Collect the running state data of the coil car through PLC, such as speed, acceleration, etc., to monitor the running state of the car in real time.

[0080] Environmental parameters: Monitor the temperature, humidity and other parameters of the coil storage environment through temperature and humidity sensors, to ensure that the coil is stored in a good environment. Note that the temperature and humidity sensors can be installed directly in the car body.

[0081] 5. Summary

[0082] Siemens PLC realizes real-time monitoring of the coil status through industrial intelligent gateway and online monitoring terminal. Through remote monitoring and control, intelligent early warning and alarm functions, users can understand various information of the coil and automatic field at any time and any place, improve management efficiency and reduce labor cost. At the same time, the system also has the characteristics of high efficiency, richness, flexibility, etc., which can meet the various needs of enterprises.

[0083] Specific embodiment three:

[0084] As shown in FIG. 1-4, the alarm threshold of the coil status monitoring needs to be set in advance, and the specific process is as follows:

[0085] 1. Determine the key monitoring parameters

[0086] Position state: The position of the coil car, usually monitored by laser range finder 11 or proximity switch 12.

[0087] Transportation state: Such as the speed and acceleration of the coil car, to ensure that it runs within the specified range.

[0088] Environmental parameters: The temperature and humidity of the environment where the steel coils are stored to ensure the quality of the steel coils.

[0089] 2. Collect historical data

[0090] Through the analysis of historical operation data, understand the normal fluctuation range of steel coils during transportation and storage.

[0091] For example, the normal operating speed range of the steel coil trolley, the normal fluctuation of temperature and humidity, etc.

[0092] 3. Set preliminary thresholds

[0093] Position state: According to the accuracy of the laser distance meter 11 or 12 proximity switch, set a reasonable position error range. For example, if the accuracy of the laser distance meter 11 is ±1 cm, the position error threshold can be set to ±2 cm.

[0094] Transportation state: For parameters such as speed and acceleration, set a reasonable range according to historical data and equipment performance. For example, if the normal speed of the steel coil trolley is 1 m / s, the speed threshold can be set to 0.8 m / s to 1.2 m / s.

[0095] Environmental parameters: According to the environmental requirements for storing steel coils, set the upper and lower limits of temperature and humidity. For example, if the appropriate temperature for storing steel coils is 20℃ to 25℃, the temperature threshold can be set to 18℃ to 27℃.

[0096] 4. Actual application and adjustment

[0097] In actual application, according to the feedback of equipment running state and steel coil quality, necessary adjustment is made to the threshold.

[0098] If frequent false alarms or missed reports are found, the cause needs to be analyzed and the threshold needs to be adjusted.

[0099] Specific embodiment four:

[0100] As shown in Figures 1-4: For the design of wheel 13 surface quenching, both sides of transmission motor 3 and right side of anti-collision block, after the wheel 13 is treated by rim surface quenching technology, the wear resistance and durability of the wheel 13 are significantly improved. The application of this technology enables the wheel 13 to withstand greater pressure and friction during the transportation of steel coils, reducing downtime and maintenance costs caused by wheel 13 wear. Surface quenching technology not only enhances the hardness of the wheel 13, but also maintains the toughness of the wheel 13, ensuring the stability and reliability of the wheel 13 in complex transportation environment.

[0101] The design of two-sided transmission motors 3 driving the wheel shafts 14 greatly enhances the efficiency of steel coil transportation. Traditional single-motor driving methods may have uneven power distribution and low driving efficiency, while two-sided transmission motors 3 can achieve more balanced power output and higher transmission efficiency. In addition, two-sided motors also improve the response speed and stability of the wheels 13, making the steel coil more stable and safe during transportation.

[0102] The right side of the added anti-collision block design provides additional safety for steel coil transportation. In the case of motor brake failure or inductive switch failure, the anti-collision block can contact the baffle, preventing the wheels 13 from moving further and avoiding collisions or damage to the steel coil due to inertia. This design not only improves the safety of steel coil transportation, but also reduces production losses caused by accidents.

[0103] The two-sided transmission motors 3 need to be tested in advance before installation. Real-time monitoring of the speed of the two-sided motors is achieved through speed sensors, and the speed of the motors is adjusted through the control system to ensure that the speed of the two-sided motors remains consistent, which helps to reduce additional friction and wear caused by inconsistent speeds.

[0104] Data collection: Collect real-time running data of the two-sided motors through position sensors, speed sensors, etc.

[0105] Analysis and processing: The central control system analyzes and processes the collected data to determine the running state of the two-sided motors.

[0106] Adjustment and optimization: Based on the analysis results, the control system can adjust the current, voltage, and other parameters of the motors in real time to ensure that the two-sided motors can maintain high efficiency under different working conditions.

[0107] 4. System debugging and optimization

[0108] Initial settings: During system installation and debugging, set reasonable initial torque distribution and speed synchronization parameters based on the performance parameters of the motors and the actual needs of the system.

[0109] Real-time adjustment: During system operation, adjust and optimize control parameters in real time based on real-time monitoring data and operation effects.

[0110] 5. Safety protection mechanism

[0111] Anti-collision block design: Add anti-collision blocks at positions where collisions may occur (such as the right side of the wheels 13) to deal with abnormal situations such as motor brake failure or inductive switch failure.

[0112] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the words of the patent claims. A reference to an aspect of the present application employing a particular aspect, feature or structure of the described embodiments is not to be interpreted as an indication that all or even any aspects of the present application have such feature or structure in some way.

[0113] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the spirit and scope of the present application, which is defined by the appended claims and their equivalents.

Claims

1. A steel coil transport trolley of a lifting device and a method of use, comprising a trolley frame (8), a transport track (9) and a wireless transmitter (10), characterized in that: The rail car wheel group (5) is bolted on the front and back of the frame (8), the inside of the rail car wheel group (5) is provided with a wheel (13), the bottom of the wheel (13) is matched with the transmission rail (9), and the front of the rail car wheel group (5) is drivingly connected with a transmission motor (3).

2. The steel coil transport trolley of claim 1, wherein: The wheel shaft (14) is connected between adjacent rail car wheel groups (5), the side of the rail car wheel group (5) is provided with a collision prevention interface (15), the side of the rail car wheel group (5) is provided with a buffer pad (6), and the front of the collision prevention interface (15) is bolted with a collision prevention block.

3. The steel coil transport trolley of claim 2, wherein: The front of the frame (8) is embedded with a laser range finder (11), and the side of the frame (8) close to the laser range finder (11) is electrically connected with a proximity switch (12).

4. The steel coil transporting trolley of the lifting device and the using method according to claim 3, characterized in that: The middle of the frame (8) close to the laser range finder (11) and the proximity switch (12) is provided with a wireless transmitter (10), and the laser range finder (11) and the proximity switch (12) are electrically connected with the wireless transmitter (10).

5. The steel coil transport trolley of claim 1, wherein: The frame (8) is provided with lifting oil cylinders (2) on both sides, and the top of the lifting oil cylinders (2) is screw-connected with a lifting saddle (1).

6. The steel coil transport trolley of claim 5, wherein: The inside of the frame (8) is provided with a lifting shear (4) between the two lifting oil cylinders (2).

7. The steel coil transport trolley of claim 6, wherein: The top of the front of the frame (8) is slidingly connected with a guide rail sliding block (7).

8. A method of using a steel coil transport cart for a lifting device (exclusive right), characterized in that: The use process of the transport trolley is as follows: Sp1: the vehicle body runs to the specified position, the lifting shear (4) is ejected through the lifting oil cylinder (2), and the steel coil is conveyed through the guide rail sliding block (7) transmission, the steel coil trolley reaches the specified area, and the lifting oil cylinder (2) is lowered when the lifting shear (4) is lowered, and the steel coil falls on the lifting saddle (1) and waits for the machine to pack; Sp2: the wheel flange surface of the wheel (13) is quenched, the two transmission motors (3) drive the wheel shaft (14) and the collision prevention block at the collision prevention interface (15) is increased; Sp3: the laser range finder (11) and the proximity switch (12) transmit the detection data to the remote control system in real time through the wireless transmitter (10), and the remote control system remotely acquires position state information, transportation state information and environmental parameter information.

Citation Information

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