Device for quick replacement of high temperature electromagnet of coal loading car

Abstract

This utility model discloses a device for quickly replacing high-temperature electromagnets in coal loading vehicles, comprising: a triangular truss platform; an operating rod, one end of which is fixedly connected to one vertex of the triangular truss platform; two plug-in arm assemblies, each comprising an arc-shaped support tube and a plug-in rod fixedly welded to one end; the other ends of the two arc-shaped support tubes are fixedly connected to the bottom edge of the triangular truss platform opposite to the vertex of the connecting operating rod, and the arc-shaped support tubes have a bent section in the middle; two triangular support frames, respectively fixedly welded to both sides of the lower part of the triangular truss platform, each triangular support frame being a three-dimensional frame structure welded from galvanized steel pipes; and two casters, respectively installed below the largest inner angle vertex of the two triangular support frames. Through the scientific and rational design and coordinated operation of its components, this device achieves rapid and stable replacement of high-temperature electromagnets in coal loading vehicles, effectively improving maintenance efficiency and reducing labor intensity.

Description

Technical Field

[0001] This utility model belongs to the technical field of coke oven machinery and equipment, and in particular relates to a device for quickly replacing high-temperature electromagnets in coal charging cars. Background Technology

[0002] The coal charging car is a key plant control device in a coking plant, playing a crucial role in charging coal into the coke ovens. The high-temperature electromagnet on the car is responsible for the first step in the coal charging process – opening the furnace cover. Because the high-temperature electromagnet itself weighs 150 kg and is installed in a confined space under the trolley, replacing it after damage is extremely difficult. It requires precisely adjusting the height by placing bricks underneath, then using an extended pry bar to pry the electromagnet out of its support ring, and finally using a long lever to manually lift the damaged electromagnet out of its mounting ring. This process requires repeated movements of the electromagnet-removing trolley to find the correct height before the high-temperature electromagnet can be manually removed. Due to the considerable force required by the trolley, the correct position needs to be determined through multiple trials. Furthermore, the 150 kg weight of the high-temperature electromagnet necessitates four people working in the confined space to move it with great difficulty. Similarly, installing a new electromagnet requires four people in the confined space to precisely lift the high-temperature electromagnet into its support ring. The limited space makes it difficult to apply force, resulting in significant waste of time and manpower. Each replacement requires four people and takes about two to three hours, and is very difficult to perform. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides a device for quickly replacing high-temperature electromagnets in coal loading cars.

[0004] This utility model is implemented as follows: a device for quickly replacing high-temperature electromagnets in a coal loading car, characterized by comprising: a triangular truss platform, welded from galvanized steel pipes; an operating rod, one end of which is fixedly connected to one vertex of the triangular truss platform; two plug-in arm assemblies, each comprising an arc-shaped support tube and a plug-in rod fixedly welded to one end; the other ends of the two arc-shaped support tubes are fixedly connected to the bottom edge of the triangular truss platform opposite to the vertex of the connecting operating rod, and the arc-shaped support tubes have a bent section in the middle; two triangular support frames, respectively fixedly welded to both sides of the lower part of the triangular truss platform, each triangular support frame being a three-dimensional frame structure welded from galvanized steel pipes, with its maximum inner angle facing downwards; and two casters, respectively installed below the vertices of the maximum inner angles of the two triangular support frames. More preferably, the maximum inner angle of the triangular support frame is designed to be 120°.

[0005] More preferably, at least one galvanized steel pipe is welded inside the triangular support frame as a reinforcing rib. More preferably, the angle of the bend in the middle of the arc-shaped support pipe is 135°.

[0006] More preferably, the diameter of the plug rod is 14mm.

[0007] In a further preferred embodiment, triangular reinforcing ribs are welded to the connection between the triangular truss platform and the operating lever to enhance the connection strength.

[0008] More preferably, the largest inner corner vertex of the triangular support frame is located on the side closer to the operating lever, forming the long side of the triangular support frame; the smallest inner corner vertex of the triangular support frame is located on the side closer to the plug-in arm assembly, forming the short side of the triangular support frame.

[0009] In a further preferred embodiment, the triangular truss platform, operating lever, arc-shaped support pipe, triangular support frame and its reinforcing ribs are all welded from DN20 galvanized steel pipes.

[0010] The advantages and technical effects of this utility model are as follows: The device for quickly replacing the high-temperature electromagnet of the coal loading car provided by this utility model brings significant and multifaceted technical effects.

[0011] In terms of ease of operation, the device is cleverly designed. Utilizing the lever principle, maintenance personnel can easily lift and place the high-temperature electromagnet simply by pressing down or lifting the operating lever, greatly simplifying the replacement process, reducing operational difficulty, and minimizing manpower and time costs.

[0012] With strong structural stability, the rational design and welding of components such as the triangular truss platform, triangular support frame, and triangular reinforcing ribs ensure that the device can withstand corresponding loads during use and is not easily deformed, providing a solid support for the replacement of high-temperature electromagnets.

[0013] With excellent spatial adaptability, the angle and side length design of the triangular support frame fully considers the space constraints of the inner and outer sleeves of the coal loading unit, ensuring that the device can function normally within a limited space. Furthermore, the inclusion of casters allows for flexible movement of the device, facilitating operation by maintenance personnel in different positions and further improving replacement efficiency. Overall, this effectively ensures the rapid and stable replacement of the high-temperature electromagnets on the coal loading car. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram provided in an embodiment of the present utility model;

[0015] Figure 2 This is a top view structural diagram provided in an embodiment of the present utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the operating object (high temperature electromagnet, electromagnet support ring and cover removal trolley) provided in the embodiment of this utility model.

[0017] 1. Triangular truss platform; 2. Triangular support frame; 3. Operating lever; 4. Triangular reinforcing rib; 5. Arc-shaped support tube; 6. Connecting rod; 7. Casters; 8. Electromagnet support ring; 9. High-temperature electromagnet; 10. Coal loading car cover removal trolley. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0019] like Figures 1 to 3 As shown, this application provides a device for quickly replacing high-temperature electromagnets in coal loading vehicles. The device has a compact structure and reasonable design, effectively meeting the need for rapid replacement of high-temperature electromagnets in coal loading vehicles.

[0020] Triangular Truss Platform 1: The core supporting component of this device is the triangular truss platform 1, which is constructed by welding galvanized steel pipes of DN20 specification. During the welding process, welding process parameters are strictly controlled to ensure that the weld points are firm and reliable, guaranteeing that the triangular truss platform 1 can withstand the corresponding loads without deformation during the use of the device.

[0021] Operating lever 3: One end of operating lever 3 is fixedly connected to one of the apex areas of the triangular truss platform 1. Operating lever 3 is also made of DN20 steel pipe. This choice of material and specification ensures the robustness of operating lever 3 during use, making it less prone to deformation, while also facilitating operation by maintenance personnel.

[0022] Triangular reinforcing rib 4: A triangular reinforcing rib 4 is welded at the connection between the triangular truss platform 1 and the operating rod 3. This reinforcing rib is made of 10mm thick iron plate and is firmly welded to the connection point through a precise welding process to enhance the connection strength and ensure that this key support point is stable and will not break during use.

[0023] Insertion / Extraction Arm Assembly: This device has two insertion / extraction arm assemblies. Each assembly includes an arc-shaped support tube 5 and an insertion rod 6 fixedly welded to one end. The arc-shaped support tube 5 is made of DN20 galvanized steel pipe with a bend in the middle at an angle of 135°. This angle is precisely calculated to better adapt to the device's usage scenarios and stress requirements. The other ends of the two arc-shaped support tubes 5 are fixedly connected to the bottom edge area of ​​the triangular truss platform 1, opposite to the apex of the connecting operating rod 3. The insertion rod 6 is made of 14mm diameter steel bar, which can be accurately inserted into the gap between the cap-removing high-temperature electromagnet 9 and the electromagnet support ring 8 on both sides. When the high-temperature electromagnet needs to be replaced, the coal loading car takes the cover trolley 10 and lowers the high-temperature electromagnet to the ground. The maintenance personnel push the device and insert the corner of the front plug rod 6 and the arc support tube 5 into the two sides of the bottom edge of the high-temperature electromagnet. Then, using the force angle designed by the device, the operating rod 3 at the rear of the device is pressed down according to the lever principle to lift the high-temperature electromagnet out of the electromagnet support ring 8.

[0024] Triangular support frame 2: Two triangular support frames 2 are fixedly welded to both sides of the lower part of the triangular truss platform 1. Each triangular support frame 2 is a three-dimensional frame structure welded from DN20 galvanized steel pipes, with its maximum inner angle facing downwards and designed to be 120°. Considering the limited space above the high-temperature electromagnet 9 and the electromagnet support ring 8, the design of this maximum support angle of 120° ensures that the device can exert its force optimally and accurately in space during operation, using this maximum angle as a fulcrum. At the same time, the vertex of the maximum inner angle of the triangular support frame 2 is located on the side closer to the operating rod 3, forming the long side of the triangular support frame 2; the vertex of the minimum inner angle of the triangular support frame 2 is located on the side closer to the insertion and extraction arm assembly, forming the short side of the triangular support frame 2. This design ensures that the triangular structure of the facade does not deform under the torque when personnel pry out the high-temperature electromagnet, and provides sufficient space and position when dragging the high-temperature electromagnet. In addition, at least one DN20 galvanized steel pipe is welded inside the triangular support frame 2 as a reinforcing rib to further enhance the structural stability of the triangular support frame 2 and ensure that this load-bearing surface is stable and free from deformation.

[0025] Casters 7: Two casters 7 are installed below the largest inner corner vertices of the two triangular support frames 2. Each caster 7 has a load-bearing capacity of 100 kg, ensuring that the device can be moved normally and easily during maintenance operations to replace the high-temperature electromagnet 9. When the maintenance personnel accurately insert the front plug rod 6 of the device into the gap between the high-temperature electromagnet 9 and the electromagnet support ring 8 on both sides, press down the rear of the device to lift the high-temperature electromagnet out of the electromagnet support ring, and then use the two lower casters 7 to pull the operating rod 3 to easily pull out the high-temperature electromagnet.

[0026] Replacement process: After removing the high-temperature electromagnet 9, lift the operating lever 3 and place the high-temperature electromagnet on the ground. Then, using the same lever principle, pry up the new high-temperature electromagnet. Use the caster wheel 7 to push the operating lever 3 and place the high-temperature electromagnet 9 into the electromagnet support ring 8. Then, fix it with bolts and connect the electromagnet. This completes the entire replacement process.

[0027] Once the cover removal trolley lands smoothly on the ground, maintenance personnel can skillfully utilize the natural gap between the high-temperature electromagnet and the electromagnet support ring to precisely and smoothly insert the steel support arm at the front of the device into both sides of the bottom edge of the high-temperature electromagnet, much like a snake entering its hole.

[0028] At this point, the steel pipe at the rear of the reinforcing arm fully utilizes its supporting strength. Using the principles of leverage and lever arm, maintenance personnel can quickly lift the high-temperature electromagnet to the appropriate height with minimal effort, as if using a small force to move a heavy object. Then, with the help of the carefully designed pulleys at the bottom of the device, the high-temperature electromagnet can be quickly and smoothly removed, making the entire process fluid and efficient.

[0029] When replacing a new electromagnet, simply follow the reverse disassembly steps in an orderly manner to easily and quickly reinstall the new high-temperature electromagnet, thus efficiently and successfully completing the replacement task after the high-temperature electromagnet is damaged.

[0030] The entire replacement process can be completed by a single maintenance worker in just 20 minutes, eliminating the need for excessive brute force and significantly saving labor and time costs. Simultaneously, the device effectively prevents accidents such as bumps and injuries that may occur during the handling and prying of the electromagnet, significantly reducing the risk factors during operation and providing a solid safety net for maintenance personnel.

[0031] It not only significantly improves the work efficiency of maintenance personnel, but also ensures that the coal charging car, the main equipment of the coke oven, can quickly resume normal operation when the high-temperature electromagnet malfunctions, providing a strong guarantee for the continuous and stable production of the coke oven. Through the scientific and rational design and coordinated operation of its various components, this device enables the rapid and stable replacement of the high-temperature electromagnet in the coal charging car, effectively improving maintenance efficiency and reducing labor intensity.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for quick replacement of a high-temperature electromagnet of a coal-loading car, characterized in that include: The triangular truss platform (1) is constructed by welding galvanized steel pipes; The operating lever (3) is fixedly connected at one end to one of the vertex regions of the triangular truss platform (1); Two plug-in arm assemblies, each plug-in arm assembly includes an arc-shaped support tube (5) and a plug-in rod (6) fixedly welded to one end; the other end of the two arc-shaped support tubes (5) is fixedly connected to the bottom edge area of ​​the triangular truss platform (1) opposite to the vertex of the connecting operating rod (3), and the arc-shaped support tube (5) has a bent part in the middle. Two triangular support frames (2) are fixedly welded to the two sides of the lower part of the triangular truss platform (1). Each triangular support frame (2) is welded from galvanized steel pipes to form a three-dimensional frame structure, with its maximum inner angle facing downwards. Two casters (7) are installed below the largest inner corner vertices of the two triangular support frames (2).

2. The device for quick replacement of the high-temperature electromagnet of the coal charging car according to claim 1, characterized in that The maximum inner angle of the triangular support frame (2) is designed to be 120°.

3. The device for quickly replacing the high-temperature electromagnet of a coal loading car according to claim 1 or 2, characterized in that, The triangular support frame (2) has at least one galvanized steel pipe welded inside as a reinforcing rib.

4. The device for quickly replacing the high-temperature electromagnet of a coal loading car according to claim 1, characterized in that, The angle of the bend in the middle of the arc-shaped support tube (5) is 135°.

5. The device for quickly replacing the high-temperature electromagnet of a coal loading car according to claim 1, characterized in that, The diameter of the plug rod (6) is 14 mm.

6. The device for quickly replacing the high-temperature electromagnet of a coal loading car according to claim 1, characterized in that, A triangular reinforcing rib (4) is welded at the connection between the triangular truss platform (1) and the operating rod (3) to enhance the connection strength.

7. The device for quickly replacing the high-temperature electromagnet of a coal loading car according to claim 1, characterized in that, The maximum inner corner vertex of the triangular support frame (2) is located on the side closer to the operating lever (3), forming the long side of the triangular support frame (2); the minimum inner corner vertex of the triangular support frame (2) is located on the side closer to the plug-in arm assembly, forming the short side of the triangular support frame (2).

8. The device for quickly replacing the high-temperature electromagnet of a coal loading car according to claim 1, characterized in that, The triangular truss platform (1), operating rod (3), arc-shaped support pipe (5), triangular support frame (2) and its reinforcing ribs are all welded from DN20 galvanized steel pipes.

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