Automatic dismounting and mounting device for oxygen lance head of converter

Abstract

The utility model belongs to the technical field of converter oxygen lance head repairing, and particularly relates to an automatic disassembling and assembling device for a converter oxygen lance head. Comprising a trolley, a hydraulic station is installed in the trolley, a hydraulic station pipeline is connected with a hydraulic jack, a load bearing box is arranged at one end of the trolley, a plurality of load bearing blocks are placed in the load bearing box, a lifting machine is fixed above the trolley, the hydraulic jack is fixed to the lifting machine, and a movable baffle is fixed to the output end of the hydraulic jack; the free end of the hook rod is provided with a hook claw, and a bearing table is fixed to one end of the lifter and provided with a hoop. According to the device, the oxygen lance head can be disassembled and assembled, manual centering is not needed, the whole process can be completed by one person within 15 minutes, manpower is reduced, the disassembly and assembly efficiency is improved, the working time is saved, and the labor intensity is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of converter oxygen lance head repair technology, and in particular relates to an automatic disassembly and assembly device for converter oxygen lance heads. Background Technology

[0002] In steelmaking, injecting oxygen into the molten pool through an oxygen lance generates a strong airflow, promoting the circulation of molten steel, resulting in more uniform steel temperature, improved slag-metal transfer, and more complete chemical reactions, thus enhancing steel quality. Before use, the oxygen lance needs repair. Disassembly of the lance head typically involves brute force: two workers insert a pry bar into the pre-cut weld between the lance head and the central tube, then press backward forcefully to detach the lance head from the tube. A support device is placed directly beneath the lance head to prevent it from falling to the ground. During installation, a crane lifts the new lance head, and workers, based on experience, align the lance head's centerline with the lance body's centerline to prevent misalignment during welding. The entire process, from disassembly to installation, requires two workers: one to control the crane lifting the lance head and the other to weld. This takes approximately 40 minutes, severely impacting work efficiency, failing to meet production demands, wasting manpower, and resulting in low productivity. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic assembly and disassembly device for converter oxygen lance heads to solve the problems existing in the prior art.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] An automatic assembly and disassembly device for converter oxygen lance heads includes a trolley, a hydraulic station installed inside the trolley, a hydraulic jack connected to the hydraulic station by pipeline, a load box at one end of the trolley containing several load blocks, a lift fixed above the trolley, the hydraulic jack fixed to the lift, a movable baffle fixed at the output end of the hydraulic jack, hook rods hinged at both ends of the movable baffle, the free ends of the hook rods having claws, and a receiving platform fixed at one end of the lift, with clamps installed on the receiving platform.

[0006] Furthermore, two wheels are rotatably connected to both sides of the trolley. The trolley has two layers, with the wheels and hydraulic station located on the lower layer and the elevator located on the upper layer. The load box is welded to one end of the trolley.

[0007] Furthermore, the elevator is a scissor lift platform, and the elevator has a manual control handle for lifting. The handle extends out of the trolley and is located at one end of the load box welded to the trolley.

[0008] Furthermore, the bearing surface of the receiving platform is arc-shaped. The receiving platform is welded to the end of the elevator top away from the handle. Both sides of the receiving platform away from the elevator are welded with ear plates, and the two ends of the clamp are respectively bolted to the two ear plates.

[0009] Furthermore, both ends of the movable baffle have grooves, and a pin is inserted through the groove of the movable baffle. One end of the hook rod is located in the groove and the pin is inserted through the hook rod. The hook rod, the groove, and the pin form a hinge structure.

[0010] Furthermore, the hook protrudes from the hook rod and is at an acute angle, with the two hooks facing each other.

[0011] Furthermore, a vertical plate is welded above the end of the elevator away from the receiving platform, and a hydraulic jack is fixed to the vertical plate.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model can disassemble and install oxygen gun heads without manual alignment. The entire process can be completed by one person within 15 minutes, reducing manpower, improving disassembly and assembly efficiency, saving working time, and reducing labor intensity.

[0014] 2. The oxygen lance head is disassembled using a hydraulic jack and hook, eliminating the need for manual pry bar brute force, making it convenient and quick.

[0015] 3. The oxygen lance head is supported by the arc-shaped bearing surface of the receiving platform, which prevents the oxygen lance head from falling and injuring the feet, thus improving safety. At the same time, the arc-shaped bearing surface makes the oxygen lance coaxial, eliminating the need for experience to align it, and preventing deviations during subsequent welding, thereby improving the quality of oxygen lance repair.

[0016] 4. The oxygen lance head is installed using a hydraulic jack and a moving baffle, eliminating the need for manual pushing, making it convenient and quick. Attached Figure Description

[0017] Figure 1 This is a side view structural diagram of the present invention.

[0018] Figure 2 This is a top view of the structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the connection structure between the receiving platform and the clamp in this utility model.

[0020] Figure 4 This is a schematic diagram of the connection structure between the hook rod and the movable baffle of this utility model.

[0021] The components are: 1. trolley; 2. hydraulic station; 3. hydraulic jack; 4. load box; 5. load block; 6. elevator; 7. movable baffle; 8. hook rod; 9. hook claw; 10. receiving platform; 11. clamp; 12. wheel; 13. handle; 14. groove; 15. pin; 16. upright plate; 17. ear plate. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with specific embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the scope of the utility model.

[0023] like Figure 1-4 As shown, an automatic assembly and disassembly device for converter oxygen lance heads includes a trolley 1, a hydraulic station 2 installed inside the trolley 1, a hydraulic jack 3 connected to the hydraulic station 2 by pipes, a load box 4 set at one end of the trolley 1, a number of load blocks 5 placed inside the load box 4, a lift 6 fixed above the trolley 1, the hydraulic jack 3 fixed on the lift 6, a movable baffle 7 fixed at the output end of the hydraulic jack 3, hook rods 8 hinged at both ends of the movable baffle 7, hook claws 9 at the free end of the hook rods 8, a receiving platform 10 fixed at one end of the lift 6, and clamps 11 installed on the receiving platform 10.

[0024] The trolley 1 has two rotatable wheels 12 on both sides. The trolley 1 has two layers, with the wheels 12 and hydraulic station 2 located on the lower layer of the trolley 1, and the elevator 6 located on the upper layer of the trolley 1. The load box 4 is welded to one end of the trolley 1.

[0025] The lifting platform 6 is a scissor lift platform. The lifting platform 6 has a manual control handle 13, which extends out of the trolley 1 and is located at one end of the welded load box 4 on the trolley 1. Scissor lift platforms are existing technology and are available in manual and electric versions; their specific structures will not be described in detail.

[0026] The bearing surface of the receiving platform 10 is arc-shaped. During manufacturing, after the oxygen lance is fixed to the receiving platform 10 by the clamp 11, the arc-shaped structure of the receiving platform 10 is coaxial with the oxygen lance. This ensures that the oxygen lance head is placed on the receiving platform 10 for easy coaxial positioning, eliminating the need for manual alignment. The receiving platform 10 is welded to the top of the elevator 6 at the end away from the handle 13. Ear plates 17 are welded to both sides of the end of the receiving platform 10 away from the elevator 6, and the two ends of the clamp 11 are respectively fastened to the two ear plates 17.

[0027] Both ends of the movable baffle 7 have grooves 14. A pin 15 is inserted through the groove 14 of the movable baffle 7. One end of the hook rod 8 is located in the groove 14 and the pin 15 is inserted through the hook rod 8. The hook rod 8, the groove 14, and the pin 15 form a hinge structure.

[0028] The hook 9 protrudes from the hook rod 8 and is at an acute angle, with the two hooks 9 facing each other.

[0029] A vertical plate 16 is welded above the end of the elevator 6 away from the receiving platform 10, and the hydraulic jack 3 is fixed on the vertical plate 16.

[0030] The working principle of this utility model is as follows:

[0031] In use, move the trolley 1 to the oxygen lance head, rotate the handle 13 to raise the elevator 6, and position the oxygen lance head inside the receiving platform 10 (clamp 11 in the open state). Secure the clamp 11 to the oxygen lance, rotate the two hook rods 8 so that the sharp-angled end of the hook claw 9 inserts into the pre-cut weld between the lance head and the central tube. Tighten the clamp 11 to fix the oxygen lance on the receiving platform 10. Start the hydraulic station 2 to drive the hydraulic jack 3 to retract, and the moving baffle 7 moves accordingly, thereby driving the hook claw 9 to disassemble the oxygen lance head, which is then supported on the receiving platform 10. After removing the old oxygen lance head, hoist the new oxygen lance head and place it on the receiving platform 10. Since the axis of the receiving platform 10 is coaxial with the oxygen lance, the alignment operation is eliminated. Drive the hydraulic jack 3 to extend via the hydraulic station 2 (rotating the hook rod 8 to a non-obstructive position), and push the lance head into the central tube via the moving baffle 7. Then, perform welding work to complete the repair of the oxygen lance.

[0032] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention.

[0033] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. An automatic assembly and disassembly device for a converter oxygen lance head, characterized in that, The device includes a trolley, a hydraulic station installed inside the trolley, a hydraulic jack connected to the hydraulic station via pipelines, a load box at one end of the trolley containing several load blocks, a lift fixed above the trolley, a hydraulic jack fixed to the lift, a movable baffle fixed to the output end of the hydraulic jack, hooks hinged to both ends of the movable baffle, the free ends of the hooks having claws, and a receiving platform fixed to one end of the lift, with clamps installed on the receiving platform.

2. The automatic assembly and disassembly device for converter oxygen lances according to claim 1, characterized in that, The trolley has two wheels rotatably connected to both sides. The trolley has two layers, with the wheels and hydraulic station located on the lower layer and the elevator located on the upper layer. The load box is welded to one end of the trolley.

3. The automatic assembly and disassembly device for converter oxygen lances according to claim 2, characterized in that, The lifting platform is a scissor lift platform. The lifting platform has a manual control handle for lifting. The handle extends out of the trolley and is located at one end of the trolley's welded load box.

4. The automatic assembly and disassembly device for converter oxygen lance heads according to claim 3, characterized in that, The bearing surface of the receiving platform is arc-shaped. The receiving platform is welded to the end of the elevator that is away from the handle. Ear plates are welded to both sides of the end of the receiving platform that is away from the elevator. The two ends of the clamp are respectively bolted to the two ear plates.

5. The automatic assembly and disassembly device for converter oxygen lance heads according to claim 1, characterized in that, Both ends of the movable baffle have grooves, and a pin is inserted through the groove of the movable baffle. One end of the hook rod is located in the groove and the pin is inserted through the hook rod. The hook rod, the groove, and the pin form a hinge structure.

6. The automatic assembly and disassembly device for converter oxygen lance heads according to claim 1, characterized in that, The hook protrudes from the hook rod and is at an acute angle, with the two hooks facing each other.

7. The automatic assembly and disassembly device for converter oxygen lances according to claim 1, characterized in that, A vertical plate is welded above the end of the elevator away from the receiving platform, and a hydraulic jack is fixed to the vertical plate.

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