Converter maintenance device

Abstract

The utility model relates to field maintenance of a converter, in particular to a converter maintenance device. According to the high-altitude maintenance platform, manual work can be replaced by part of high-altitude maintenance work, maintenance personnel can maintain and repair equipment more efficiently, meanwhile, a safe and efficient working platform is provided, and multiple operations with high repeatability and large physical output can be completed. Comprising a movable bearing chassis used for transferring the converter maintenance device, and the two sides of the movable bearing chassis are each provided with a supporting unit used for providing stable supporting in the working process; the supporting unit comprises a supporting arm, one end of the supporting arm is rotationally connected with the side wall of the movable bearing chassis through a trunnion and a pin, and the other end of the supporting arm is in gapless contact with the ground through an adjusting screw. A lifting unit is arranged on the top of the movable bearing chassis and used for lifting operation. The top of the lifting unit is provided with an operation mechanical arm, and the tail end of the operation mechanical arm is connected with an operation tool.

Description

Technical Field

[0001] The utility model relates to converter on-site maintenance, in particular to a converter maintenance device. Background Art

[0002] Regular converter maintenance during production can predict equipment failure locations and develop appropriate solutions, allowing for immediate repairs should a problem occur. Preemptive replacement of equipment components can also minimize potential losses. Proper routine equipment maintenance not only ensures optimal equipment operation but also fundamentally reduces the risk of equipment failure, ultimately extending equipment life.

[0003] Currently, equipment maintenance tasks such as high-altitude manual inspections, welding of broken points, and polishing and cleaning are primarily performed by constructing maintenance platforms. However, constructing these platforms is time-consuming and time-consuming, and the temporary installations during maintenance are unstable, increasing safety risks for employees. Therefore, a maintenance device is needed to enable on-site equipment inspection and maintenance. Summary of the Invention

[0004] The present invention addresses the shortcomings of the prior art and provides a converter maintenance device. It can replace manual labor for some high-altitude maintenance work, making maintenance personnel more efficient in equipment maintenance and repair. It also provides a safe and efficient working platform, enabling the completion of multiple highly repetitive and physically demanding operations (high-altitude manual inspection, breakpoint welding, and grinding and cleaning), thereby reducing workers' labor intensity, saving maintenance time, reducing production downtime, improving production efficiency, and eliminating potential safety hazards such as casualties. The device is convenient, fast, and safe.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: a converter maintenance device includes a mobile supporting chassis for rotating the converter maintenance device, and a support unit is provided on each side of the mobile supporting chassis to provide stable support during work; the support unit includes a support arm, one end of the support arm is rotatably connected to the side wall of the mobile supporting chassis through an ear shaft and a pin, and the other end of the support arm is in seamless contact with the ground through an adjusting screw.

[0006] A lifting unit is provided on the top of the mobile carrying chassis for lifting operations; an operating mechanical arm is provided on the top of the lifting unit, and an operating tool is connected to the end of the operating mechanical arm.

[0007] Furthermore, the mobile bearing chassis includes a mobile bearing frame, and the bottom of the mobile bearing frame is rotatably provided with running wheels.

[0008] Furthermore, the two support units are symmetrical relative to the center line of the movable supporting chassis. One end of the support arm of the support unit is rotatably connected to the side wall of the movable supporting frame through an ear shaft and a pin, and the other end of the support arm is supported on the ground by an adjustment screw to ensure that there is no gap when the support arm contacts the ground.

[0009] Furthermore, the ear shaft is fixed to the side wall of the movable carrier, the pin passes through the holes on the ear shaft and the support arm, and the pin is used to connect the support arm to the ear shaft to ensure that the support arm can rotate freely within a predetermined range without falling off.

[0010] Furthermore, the adjusting screw is threadedly connected to the end of the support arm, and height adjustment can be achieved by adjusting the position of the adjusting screw relative to the support arm.

[0011] Furthermore, the lifting unit includes four telescopic sleeves and a telescopic oil cylinder, wherein the four-level telescopic sleeve includes a telescopic level 1 sleeve, a telescopic level 2 sleeve, a telescopic level 3 sleeve, and a telescopic level 4 sleeve arranged in sequence from bottom to top, which together form a telescopic structure; wherein the telescopic level 1 sleeve is fixed to the top of the mobile bearing chassis, and the remaining sleeves at each level are nested in sequence, and the sleeves at each level are slidably connected and can slide up and down along the inner wall of the corresponding external sleeve; the telescopic oil cylinder is connected to the telescopic level 4 sleeve, driving the sleeves at each level to extend or retract step by step.

[0012] Furthermore, a horizontally arranged oil cylinder top plate is fixedly connected to one side of the top of the telescopic 4-stage casing, and the oil cylinder top plate is connected to the telescopic oil cylinder.

[0013] Furthermore, the operating robot arm adopts a standard six-axis industrial robot.

[0014] Furthermore, the operating robot arm includes a robot mounting seat and a robot body located on the robot mounting seat, wherein the robot mounting seat is fixed to the top of the lifting unit, and the end of the robot body is equipped with a quick-change female disc for connecting with the quick-change male disc on the tool.

[0015] Furthermore, a horizontally arranged tool support plate is installed on the side wall of the robot mounting seat, and tools are placed on the tool support plate, and the tools include one or more of grinding tools, welding tools, and visual tools; each tool is installed with a quick-change male disc.

[0016] Compared with the prior art, the utility model has beneficial effects.

[0017] This new model uses an industrial six-axis manipulator to avoid the safety hazards caused by personnel climbing up to perform maintenance. The manipulator can also be connected to different tool heads through a quick-change plate, allowing it to complete maintenance tasks such as visual inspection, welding maintenance, cleaning and grinding of the converter.

[0018] The mobile carrier chassis and support unit of this converter maintenance device enhance operational stability and safety, effectively preventing the risk of rollover. The support arm and adjustment screw combination ensure seamless ground contact and provide stable support. The lifting unit, combined with the operating manipulator arm and its end-of-line quick-change tool system, enables precise control and efficient operation during high-altitude operations, improving maintenance efficiency and ensuring operator safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. The scope of protection of the present invention is not limited to the following description.

[0020] Figure 1 This is a main view of a converter maintenance device.

[0021] Figure 2 This is a main view of a converter maintenance device in the lifting state.

[0022] In the figure, 1 is the mobile carrying chassis, 2 is the support unit, 3 is the lifting unit, and 4 is the operating robot arm;

[0023] 101 is a mobile carrier, 102 is a running wheel;

[0024] 201 is the trunnion, 202 is the pin, 203 is the support arm, and 204 is the adjustment screw;

[0025] 301 is the telescopic first-level casing, 302 is the telescopic second-level casing, 303 is the telescopic third-level casing, 304 is the telescopic fourth-level casing, 305 is the telescopic oil cylinder, and 306 is the oil cylinder top plate;

[0026] 401 is the robot mounting base, 402 is the robot body, 403 is the tool support plate, 404 is the grinding tool, 405 is the welding tool, 406 is the visual tool, 407 is the quick-change female disc, and 408 is the quick-change male disc. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and beneficial effects of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0028] like Figure 1-2 As shown, the specific embodiment includes a mobile supporting chassis 1 for rotating a furnace maintenance device, which is characterized in that a support unit 2 is provided on each side of the mobile supporting chassis 1 for providing stable support during operation; specifically, the support arm is used to play a supporting role when the robot arm is working, so that the vehicle body is more stable and prevents rollover.

[0029] The support unit includes a support arm 203, one end of the support arm 203 is rotatably connected to the side wall of the mobile supporting chassis 1 through an ear shaft 201 and a pin 202, and the other end of the support arm 203 is in seamless contact with the ground through an adjustment screw 204; a lifting unit 3 is provided on the top of the mobile supporting chassis 1 for lifting operations; an operating robot arm 4 is provided on the top of the lifting unit 3, and an operating tool is connected to the end of the operating robot arm 4.

[0030] Example 1: The mobile carrying chassis 1 includes a mobile carrying frame 101 , and the bottom of the mobile carrying frame 101 is rotatably provided with running wheels 102 .

[0031] In Example 2, two support units 2 are symmetrical relative to the centerline of the mobile supporting chassis 1. One end of the support arm 203 of the support unit 2 is rotatably connected to the side wall of the mobile supporting frame 101 via an ear shaft 201 and a pin 202. The other end of the support arm 203 is supported on the ground via an adjustment screw 204 to ensure that there is no gap when the support arm 203 contacts the ground. The ear shaft 201 is fixed to the side wall of the mobile supporting frame 101. The pin 202 passes through the holes on the ear shaft 201 and the support arm 203. The pin 202 is used to connect the support arm to the ear shaft 201, ensuring that the support arm 203 can rotate freely within a predetermined range without falling off. The adjustment screw 204 is threadedly connected to the end of the support arm 203. By adjusting the position of the adjustment screw 204 relative to the support arm 203, height adjustment can be achieved.

[0032] In Example 3, the lifting unit 3 includes four telescopic sleeves and a telescopic cylinder. The four-stage telescopic sleeves include, from bottom to top, a telescopic first-stage sleeve 301, a telescopic second-stage sleeve 302, a telescopic third-stage sleeve 303, and a telescopic fourth-stage sleeve 304, which together form a telescopic structure. The telescopic first-stage sleeve is fixed to the top of the mobile support chassis, while the remaining sleeves are nested in sequence and slidably connected to each other, enabling them to slide up and down along the inner walls of their corresponding outer sleeves. A telescopic cylinder 305 is connected to the telescopic fourth-stage sleeve 304, driving each sleeve to extend or retract step by step. A horizontally mounted cylinder top plate 306 is fixed to one side of the top of the telescopic fourth-stage sleeve 304, which is connected to the telescopic cylinder. The telescopic cylinder 305 is connected to the telescopic fourth-stage sleeve 304 via the cylinder top plate 306 and is used to propel the working robot arm up and down. The telescopic cylinder of the lifting unit 3 controls the extension and retraction of the telescopic sleeves, allowing the working robot arm mounted thereon to reach the desired working height. Limiting devices can be set between each level of casing to ensure that the casing can be stretched and retracted smoothly without deviation.

[0033] In Example 4, the operating robot arm utilizes a standard six-axis industrial robot. The operating robot arm includes a robot mounting base 401 and a robot body 402 located on the robot mounting base 401. The robot mounting base 401 is fixed to the top of the lifting unit 3 and assembled on the top of the telescopic four-stage sleeve 304. The end of the robot body is equipped with a quick-change female disc 407 for mating with a quick-change male disc 408 on the tool. A horizontally mounted tool support plate 403 is mounted on the side wall of the robot mounting base 401. Tools are placed (or stored) on the tool support plate 403. The tools include one or more of a grinding tool 404, a welding tool 405, and a vision tool 406. Each tool is mounted with a quick-change male disc 408. The welding tool 405 can be a welding gun.

[0034] Among them, visual tools are used to observe elevated positions, welding tools are used to weld where welding is required, and grinding tools are used to clean certain parts of the blast furnace. There are various ways to store the tools. They can be placed on the tool support plate 403, or the tool support plate 403 can be provided with multiple openings, into which the tools can be placed. However, the outer diameter of the quick-change male plate 408 connected to the tools is larger than the outer diameter of the openings, allowing them to be positioned above the openings. This allows the quick-change female plate to be docked, which is controlled by the robot to achieve docking of the quick-change system.

[0035] The robotic arm can be operated remotely, and different tools can be quickly swapped between quick-change plates to accommodate diverse maintenance needs. It can perform high-altitude inspections, welding, and grinding tasks remotely from the ground, without requiring personnel to reach the workstation. The quick-change plates and quick-change plates are common end-effector components of the robot, so we won't go into detail here. The quick-change system allows the robot to quickly swap between different end-effectors, such as grinding tools, welding tools, and vision tools.

[0036] Working process and working principle:

[0037] S1. When the converter needs to be inspected and repaired, the maintenance device is manually transported to the designated location. Since the maintenance device has walking wheels, it is convenient to transport.

[0038] S2. Manually open the support unit and support it on the ground to increase the stability of the equipment during operation. Manually adjust the height of the adjustment screw to ensure that there is no gap with the ground and the body unit does not shake before operation.

[0039] S3. The telescopic cylinder starts to work and extends, pushing the telescopic sleeve to extend, and the robot body installed on the top of the telescopic sleeve also rises accordingly.

[0040] S4. When the robot body rises to the expected height, the telescopic cylinder stops working, the operating robotic arm is started, and the robot is remotely controlled through the robot controller.

[0041] S5. A quick-change master disc is installed at the end of the robot body. By controlling the robot's six-axis posture, the quick-change master disc cooperates with the quick-change male disc on the tool support plate to complete the conversion and use of vision, welding, and grinding tools.

[0042] S6. When high-altitude inspections are required, the robot body can be replaced with a vision tool via a quick-change disc. The robot's posture can be remotely controlled to take images of various locations, allowing humans to remotely observe the images and complete the high-altitude inspection. When welding high-altitude equipment is required, the robot body can be replaced with a welding tool via a quick-change disc. Similarly, when grinding high-altitude equipment, the robot body can be replaced with a grinding tool via a quick-change disc.

[0043] S7. During the entire working process, personnel do not need to work at heights, they only need to remotely control and observe from the ground.

[0044] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. Therefore, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope defined by the claims of the present invention.

Claims

1. A converter maintenance device, comprising a mobile supporting chassis (1) for rotating the converter maintenance device, characterized in that: A support unit (2) is provided on each side of the mobile bearing chassis (1) for providing stable support during operation; the support unit comprises a support arm (203), one end of the support arm (203) is rotatably connected to the side wall of the mobile bearing chassis (1) via an ear shaft (201) and a pin (202), and the other end of the support arm (203) is in seamless contact with the ground via an adjustment screw (204); A lifting unit (3) is provided on the top of the mobile carrying chassis (1) for lifting operations; an operating mechanical arm (4) is provided on the top of the lifting unit (3), and an operating tool is connected to the end of the operating mechanical arm (4).

2. The converter maintenance device according to claim 1, characterized in that: The mobile bearing chassis (1) comprises a mobile bearing frame (101), and the bottom of the mobile bearing frame (101) is rotatably provided with running wheels (102).

3. The converter maintenance device according to claim 2, characterized in that: The two support units (2) are symmetrical relative to the center line of the movable supporting chassis (1); one end of the support arm (203) of the support unit (2) is rotatably connected to the side wall of the movable supporting frame (101) through an ear shaft (201) and a pin (202); the other end of the support arm (203) is supported on the ground through an adjustment screw (204) to ensure that there is no gap when the support arm (203) contacts the ground.

4. The converter maintenance device according to claim 3, characterized in that: The ear shaft (201) is fixed to the side wall of the movable carrier (101), and the pin (202) passes through the holes on the ear shaft (201) and the support arm (203). The pin (202) is used to connect the support arm to the ear shaft (201) to ensure that the support arm (203) can rotate freely within a predetermined range without falling off.

5. The converter maintenance device according to claim 1, characterized in that: The adjusting screw (204) is threadedly connected to the end of the support arm (203), and the height adjustment can be achieved by adjusting the position of the adjusting screw (204) relative to the support arm (203).

6. The converter maintenance device according to claim 1, characterized in that: The lifting unit (3) includes four telescopic sleeves and a telescopic oil cylinder (305), wherein the four-stage telescopic sleeve includes a telescopic first-stage sleeve (301), a telescopic second-stage sleeve (302), a telescopic third-stage sleeve (303), and a telescopic fourth-stage sleeve (304) arranged in sequence from bottom to top, and the plurality of sleeves together form a telescopic structure; wherein the telescopic first-stage sleeve (301) is fixed to the top of the mobile bearing chassis (1), and the remaining sleeves of each stage are nested in sequence, and the sleeves of each stage are slidably connected and can slide up and down along the inner wall of the corresponding outer sleeve; the telescopic oil cylinder (305) is connected to the telescopic fourth-stage sleeve (304), driving the sleeves of each stage to extend or retract step by step.

7. The converter maintenance device according to claim 6, characterized in that: A horizontally arranged oil cylinder top plate (306) is fixedly connected to one side of the top of the telescopic 4-stage casing (304), and the oil cylinder top plate (306) is connected to the telescopic oil cylinder (305).

8. The converter maintenance device according to claim 1, characterized in that: The operating mechanical arm (4) adopts a standard six-axis industrial robot.

9. The converter maintenance device according to claim 1, characterized in that: The operating robot arm (4) includes a robot mounting seat (401) and a robot body (402) located on the robot mounting seat (401), wherein the robot mounting seat (401) is fixed to the top of the lifting unit (3), and the end of the robot body is equipped with a quick-change female disc (407) for connecting with a quick-change male disc (408) on the tool.

10. The converter maintenance device according to claim 9, characterized in that: A horizontally arranged tool support plate (403) is installed on the side wall of the robot mounting seat (401), and tools are placed on the tool support plate (403), and the tools include one or more of a grinding tool (404), a welding tool (405), and a visual tool (406); each tool is installed with a quick-change male disc (408).

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