Hoisting device for boiler maintenance
By designing the propulsion components, adjustment components, and limiting components, the instability and collision problems of traditional boiler maintenance lifting devices during pipe hoisting have been solved, achieving stable and safe pipe hoisting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAONING HUADIAN TIELING POWER GENERATION CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional lifting devices used for boiler maintenance cannot quickly adjust the hook position according to the width of the pipe bank when lifting it, and the trolley is prone to deviation, resulting in unstable lifting and possible collisions.
A lifting device including a propulsion component, an adjustment component, and a limiting component was designed. The limiting groove and the limiting component prevent the trolley from deviating. The adjustment component adjusts the number and spacing of the sliders according to the width of the pipe row to ensure stable lifting. The operation efficiency is improved by using a walkie-talkie and a drive motor.
This ensures the stability and safety of pipe hoisting, avoids collisions and friction with buildings, and improves hoisting efficiency and safety.
Smart Images
Figure CN224258087U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of boiler maintenance, and in particular to a lifting device for boiler maintenance. Background Technology
[0002] A boiler is a container that holds substances that need to be heated or dissolved. Boilers generate high-heat and high-pressure steam to decompose and melt substances. The steam and hot water produced in boilers can be directly used for industrial production needs, or boilers can be directly connected to other power devices and converted into electrical or mechanical energy as needed. The demand for boilers in production and daily life is generally high, which also leads to higher requirements for boiler maintenance.
[0003] Traditional lifting devices for boiler maintenance still have certain shortcomings in use: when inspecting the inside of the boiler, some problematic branch pipes on the water-cooled wall are cut off, replaced with new pipe banks and welded to the original position.
[0004] This process typically involves opening a gap at the top and bottom of the boiler. A winch is then installed at the top of the boiler, and a hoisting rope is passed through the gap to lift the new tube bank from the bottom of the boiler and lower it into the furnace. In traditional structures, lifting rings are welded onto the new tube bank during lifting to secure the rope. However, traditional hook structures are not convenient for quickly adjusting the hook position according to the width of the tube bank, making it difficult to lift the tube bank stably. Secondly, because the gap at the bottom of the boiler is usually small and may be obstructed by other objects, and the tube bank is usually long, after the winch lifts one end of the tube bank, the worker at the bottom needs to push one end of the tube bank forward to prevent it from colliding with the edge of the gap or surrounding objects. However, in traditional structures, the bottom end of the tube bank is simply placed on a trolley, and the worker pushes the trolley forward. It is easy for the worker to push the trolley to one side, causing the tube bank to collide with other objects.
[0005] Therefore, it is necessary to provide a new lifting device for boiler maintenance to solve the above-mentioned technical problems. Utility Model Content
[0006] The technical problem solved by this utility model is to provide a lifting device for boiler maintenance that allows workers to easily and stably push the bottom of the pipe bank forward while quickly adjusting the position and number of hooks according to the width of the pipe bank.
[0007] To solve the above-mentioned technical problems, this utility model provides a lifting device for boiler maintenance, comprising: a propulsion assembly, an adjustment assembly, and a limiting component. The propulsion assembly includes a fixed base, a handrail is fixedly connected to one side wall surface of the fixed base, and protective pads are fixedly connected to both the side wall surface and the top surface of the fixed base relative to the handrail. A limiting groove is formed at the bottom of the fixed base, and the limiting groove is slidably connected to the limiting component. A locking block is fixedly connected to one end of the limiting component, and a locking groove is formed at one end of the limiting component relative to the locking block. Several limiting components are provided, and adjacent limiting components are engaged by the locking block and the locking groove.
[0008] The adjustment assembly includes a fixing member, a guide rail fixedly connected to the bottom of the fixing member, a plurality of sliders slidably connected to the surface of the guide rail, a pin inserted into one side wall surface of the slider, a plurality of equally spaced insertion holes opened on the side wall surface of the fixing member, one end of the pin extending into the insertion hole on one side, a chain fixedly connected to the bottom of the slider, and a hook fixedly connected to the bottom of the chain.
[0009] As a further embodiment of this utility model, each of the bottoms of several of the limiting members is fixedly connected to an installation member, and ground nails are inserted into the surfaces of the installation members located on both sides of the limiting members.
[0010] With the above technical solution, in some cases, when hoisting new tube banks, openings are made at the top and bottom of the boiler, and then the tube banks are hoisted into the boiler using hoisting ropes. Therefore, to prevent long tube banks from colliding with buildings or the edges of openings during movement, and to avoid friction between the bottom of the tube banks and the ground, a trolley is added to the bottom of the tube banks to help them move forward. To prevent the trolley from deviating due to operator error or other reasons during movement, a limiting groove is set at the bottom of the fixed base. The limiting groove slides on the surface of the limiting component, which is fixed to the ground by mounting parts and ground nails. Therefore, this structure can effectively prevent the trolley from deviating. At the same time, the limiting component is divided into several sections, which are engaged with each other by locking blocks and slots, making subsequent disassembly, assembly, and storage more convenient.
[0011] As a further embodiment of this utility model, a suspension rope is fixedly connected to the top of the fixing member, a spool is fixedly connected to one end of the suspension rope, a support member is provided on the lower side of the spool, and the support member is rotatably connected to the spool.
[0012] With the above technical solution, in traditional structures, lifting rings are typically welded onto new pipe banks for easy securing of the lifting ropes. However, traditional hook structures are not convenient for quickly adjusting the hook position according to the width of the pipe bank, making it impossible to lift the pipe bank stably. Therefore, this device adds an adjustment component to the bottom of the lifting rope. The number of sliders on the guide rail can be increased or decreased according to the actual width of the pipe bank, and the spacing between the sliders can be adjusted arbitrarily. After adjustment, the device can be fixed in the corresponding position using pins. Then, the corresponding lifting rings are welded onto the pipe bank, and the hooks and lifting rings are connected, enabling stable lifting of the pipe bank while making the lifting safer.
[0013] As a further embodiment of this utility model, walkie-talkies are fixedly connected to one side of the top of the support member and the surface of the handrail via connectors, and casters are installed at the four corners of the bottom of the fixed base.
[0014] With the above technical solution, the workers responsible for hoisting and the workers pushing the trolley need to cooperate with each other. Therefore, the device is equipped with walkie-talkies on the support components and handrails, so that the workers can communicate smoothly without holding them.
[0015] As a further embodiment of this utility model, a drive motor is fixedly connected to the top of the support member, and pulleys are fixedly connected to the output end of the drive motor and one end of the pulley, and the two pulleys are connected by a belt.
[0016] The above technical solution allows the drive motor, pulleys, and belts to rotate the spool, thereby controlling the release and retraction of the hoisting rope.
[0017] As a further embodiment of this utility model, a pulley is provided on one side of the support member, and the suspension rope passes through the surface of the pulley.
[0018] With the above technical solution, before hoisting, the pulley should be fixed above the opening at the top of the boiler so that the hoisting rope can pass smoothly through the openings at the top and bottom of the boiler.
[0019] As a further embodiment of this utility model, a tube array is provided on the upper side of the limiting member, a lifting ring is fixedly connected to the surface of the tube array, the lifting ring is connected to a hook on one side, and the bottom of the tube array is located on the upper side of the protective pad.
[0020] With the above technical solution, after welding the lifting rings onto the pipe bank, the hooks can be connected to them, and then the pipe can be lifted using a lifting rope.
[0021] Compared with related technologies, the lifting device for boiler maintenance provided by this utility model has the following advantages:
[0022] 1. In some cases, when hoisting new pipe banks, openings are made at the top and bottom of the boiler, and then the pipe banks are hoisted into the boiler using hoisting ropes. Therefore, in order to prevent long pipe banks from colliding with buildings or the edges of openings during movement, and to avoid friction between the bottom of the pipe banks and the ground, a trolley is added to the bottom of the pipe banks to move them forward in coordination with the hoisting. In order to prevent the trolley from deviating due to operator error or other reasons during movement, a limiting groove is set at the bottom of the fixed base. The limiting groove slides on the surface of the limiting component, and the limiting component is fixed to the ground by the mounting component and the ground nail. Therefore, this structure can effectively prevent the trolley from deviating. At the same time, the limiting component is divided into several sections, which are connected to each other by locking blocks and slots, making subsequent disassembly, assembly and storage more convenient.
[0023] 2. In this utility model, in traditional structures, lifting rings are typically welded onto new pipe banks for easy securing of the lifting ropes. However, traditional hook structures are not convenient for quickly adjusting the hook position according to the width of the pipe bank, making it impossible to lift the pipe bank stably. Therefore, this device adds an adjustment component to the bottom of the lifting rope. The number of sliders on the guide rail can be increased or decreased according to the actual width of the pipe bank, and the spacing between the sliders can be adjusted arbitrarily. After adjustment, the sliders are fixed in the corresponding positions using pins. Then, corresponding lifting rings are welded onto the pipe bank, and the hooks and lifting rings are connected, enabling stable lifting of the pipe bank while making the lifting safer. Attached Figure Description
[0024] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.
[0025] Figure 1 This is a schematic diagram of the overall structure of a lifting device for boiler maintenance according to the present invention;
[0026] Figure 2 This is a partial structural breakdown diagram of a lifting device for boiler maintenance according to this utility model;
[0027] Figure 3 This is a partial structural diagram of a lifting device for boiler maintenance according to the present invention. Figure 1 ;
[0028] Figure 4 This is a partial structural diagram of a lifting device for boiler maintenance according to the present invention. Figure 2 .
[0029] Explanation of key symbols:
[0030] 1. Propulsion component; 2. Adjustment component; 3. Limiting component; 4. Pulley; 5. Support component; 6. Fixing base; 7. Limiting groove; 8. Handrail; 9. Protective pad; 10. Mounting component; 11. Slot; 12. Locking block; 13. Ground nail; 14. Fixing component; 15. Insertion hole; 16. Slider; 17. Hook; 18. Guide rail; 19. Suspension rope; 20. Threaded reel; 21. Drive motor; 22. Walkie-talkie. Detailed Implementation
[0031] Please combine Figures 1 to 4 ,in, Figure 1 This is a schematic diagram of the overall structure of a lifting device for boiler maintenance according to the present invention; Figure 2 This is a partial structural breakdown diagram of a lifting device for boiler maintenance according to this utility model; Figure 3 This is a partial structural diagram of a lifting device for boiler maintenance according to the present invention. Figure 1 ; Figure 4 This is a partial structural diagram of a lifting device for boiler maintenance according to the present invention. Figure 2 A lifting device for boiler maintenance includes:
[0032] The component includes a propulsion assembly 1, an adjustment assembly 2, and a limiting component 3. The propulsion assembly 1 includes a fixed base 6. A handrail 8 is fixedly connected to one side wall surface of the fixed base 6. Protective pads 9 are fixedly connected to both the side wall surface and the top surface of the fixed base 6 relative to the handrail 8. A limiting groove 7 is provided at the bottom of the fixed base 6. The limiting groove 7 is slidably connected to the limiting component 3. A locking block 12 is fixedly connected to one end of the limiting component 3. A locking groove 11 is provided at one end of the limiting component 3 relative to the locking block 12. Several limiting components 3 are provided, and two adjacent limiting components 3 are engaged by the locking block 12 and the locking groove 11.
[0033] The adjustment assembly 2 includes a fixing member 14, a guide rail 18 fixedly connected to the bottom of the fixing member 14, a plurality of sliders 16 slidably connected to the surface of the guide rail 18, a pin inserted into one side wall surface of the slider 16, a plurality of equally spaced insertion holes 15 opened on the side wall surface of the fixing member 14, one end of the pin extending into the insertion hole 15 on one side, a chain fixedly connected to the bottom of the slider 16, and a hook 17 fixedly connected to the bottom of the chain.
[0034] like Figure 1-4 As shown, the bottom of several limiting members 3 are fixedly connected to mounting members 10, and ground nails 13 are inserted into the surfaces of the mounting members 10 located on both sides of the limiting members 3.
[0035] In some cases, when hoisting new tube banks, openings are made at the top and bottom of the boiler, and then the tube banks are hoisted into the boiler using hoisting ropes 19. Therefore, to prevent long tube banks from colliding with buildings or the edges of openings during movement, and to avoid friction between the bottom of the tube banks and the ground, a trolley is added to the bottom of the tube banks to help them move forward. To prevent the trolley from deviating due to operator error or other reasons during movement, a limiting groove 7 is provided at the bottom of the fixed base 6. The limiting groove 7 slides on the surface of the limiting member 3, and the limiting member 3 is fixed to the ground by the mounting member 10 and the ground nail 13. Therefore, this structure can effectively prevent the trolley from deviating. At the same time, the limiting member 3 is divided into several sections, which are engaged with each other by the locking block 12 and the locking groove 11, making subsequent disassembly, assembly and storage more convenient.
[0036] like Figure 1-4 As shown, a suspension rope 19 is fixedly connected to the top of the fixing member 14, and a spool 20 is fixedly connected to one end of the suspension rope 19. A support member 5 is provided on the lower side of the spool 20, and the support member 5 is rotatably connected to the spool 20.
[0037] In traditional structures, lifting rings are typically welded onto new pipe banks during lifting to facilitate the fixing of the lifting rope 19. However, traditional hook structures are not convenient for quickly adjusting the position of the hook 17 according to the width of the pipe bank, making it impossible to lift the pipe bank stably. Therefore, this device adds an adjustment component 2 to the bottom of the lifting rope 19. The number of sliders 16 on the guide rail 18 can be increased or decreased according to the actual width of the pipe bank, and the spacing between the sliders 16 can be adjusted arbitrarily. After adjustment, the sliders are fixed in the corresponding positions using pins. Then, the corresponding lifting rings are welded onto the pipe bank, and the hooks 17 are connected to the lifting rings, enabling stable lifting of the pipe bank while making the lifting safer.
[0038] like Figure 1-4 As shown, walkie-talkies 22 are fixedly connected to the top side of the support 5 and the surface of the handrail 8 via connectors, and casters are installed at the four corners of the bottom of the mounting base 6.
[0039] The workers responsible for hoisting and those pushing the trolley need to cooperate with each other. Therefore, walkie-talkies 22 are installed on the support 5 and the handrail 8 respectively, so that the workers can communicate smoothly without holding them.
[0040] like Figure 1-4 As shown, a drive motor 21 is fixedly connected to the top of the support member 5. The output end of the drive motor 21 and one end of the pulley 20 are both fixedly connected to pulleys, and the two pulleys are connected by a belt.
[0041] The drive motor 21, pulley, and belt work together to rotate the spool 20, thereby controlling the raising and lowering of the rope 19.
[0042] like Figure 1-4 As shown, a pulley 4 is provided on one side of the support member 5, and the suspension rope 19 passes through the surface of the pulley 4.
[0043] Before hoisting, pulley 4 should be fixed above the opening at the top of the boiler so that hoisting rope 19 can pass smoothly through the openings at the top and bottom of the boiler.
[0044] like Figure 1-4 As shown, a tube bank is provided on the upper side of the limiting member 3, and a lifting ring is fixedly connected to the surface of the tube bank. The lifting ring is connected to a hook 17 on one side, and the bottom of the tube bank is located on the upper side of the protective pad 9.
[0045] After welding the lifting rings onto the pipe bank, the hook 17 can be connected to it, and then the pipe can be lifted using the lifting rope 19.
[0046] The working principle of the lifting device for boiler maintenance provided by this utility model is as follows:
[0047] First step: In some cases, when hoisting a new tube bank, openings are made at the top and bottom of the boiler, and then the tube bank is hoisted into the boiler using a hoisting rope 19. Therefore, to prevent the long tube bank from colliding with the building or the edge of the opening during the movement, and to avoid friction between the bottom of the tube bank and the ground, a trolley is added to the bottom of the tube bank to move forward continuously in coordination with the hoisting. In order to prevent the trolley from deviating due to worker operation problems during the movement, a limiting groove 7 is set at the bottom of the fixed base 6. The limiting groove 7 slides on the surface of the limiting member 3, and the limiting member 3 is fixed to the ground by the mounting member 10 and the ground nail 13. Therefore, this structure can effectively prevent the trolley from deviating. At the same time, the limiting member 3 is divided into several sections, which are connected to each other by the locking block 12 and the locking groove 11, making subsequent disassembly, assembly and storage more convenient.
[0048] The second step: In traditional structures, lifting rings are typically welded onto new pipe banks during lifting to facilitate the fixing of the lifting rope 19. However, traditional hook structures are not convenient for quickly adjusting the position of the hook 17 according to the width of the pipe bank, and cannot stably lift the pipe bank. Therefore, this device adds an adjustment component 2 to the bottom of the lifting rope 19. The number of sliders 16 on the guide rail 18 can be increased or decreased according to the actual width of the pipe bank, and the spacing between the sliders 16 can be adjusted at will. After adjustment, the sliders are fixed in the corresponding positions using pins. Then, the corresponding lifting rings are welded onto the pipe bank, and the hooks 17 are connected to the lifting rings, which enables stable lifting of the pipe bank and makes the lifting safer.
[0049] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.
[0050] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.
[0051] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments, or they can be used directly or indirectly, without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, and they are similarly included within the patent protection scope of the present invention.
Claims
1. A lifting device for boiler maintenance, characterized in that, The device includes a propulsion component (1), an adjustment component (2), and a limiting component (3). The propulsion component (1) includes a fixed base (6). A handrail (8) is fixedly connected to one side wall surface of the fixed base (6). A protective pad (9) is fixedly connected to both the side wall surface and the top surface of the fixed base (6) relative to the handrail (8). A limiting groove (7) is opened at the bottom of the fixed base (6). The limiting groove (7) is slidably connected to the limiting component (3). A locking block (12) is fixedly connected to one end of the limiting component (3). A locking groove (11) is opened at one end of the limiting component (3) relative to the locking block (12). Several limiting components (3) are provided, and two adjacent limiting components (3) are locked together by the locking block (12) and the locking groove (11). The adjustment component (2) includes a fixing member (14), the bottom of which is fixedly connected to a guide rail (18), and a plurality of sliders (16) are slidably connected to the surface of the guide rail (18). A pin is inserted into one side wall surface of the slider (16), and a plurality of equally spaced insertion holes (15) are opened on the side wall surface of the fixing member (14). One end of the pin extends into the insertion hole (15) on one side. A chain is fixedly connected to the bottom of the slider (16), and a hook (17) is fixedly connected to the bottom of the chain.
2. The lifting device for boiler maintenance as described in claim 1, characterized in that, The bottom of each of the limiting members (3) is fixedly connected to an installation member (10), and ground nails (13) are inserted into the surface of the installation members (10) located on both sides of the limiting member (3).
3. The lifting device for boiler maintenance as described in claim 1, characterized in that, A suspension rope (19) is fixedly connected to the top of the fixing member (14), and a spool (20) is fixedly connected to one end of the suspension rope (19). A support member (5) is provided on the lower side of the spool (20), and the support member (5) is rotatably connected to the spool (20).
4. The lifting device for boiler maintenance as described in claim 3, characterized in that, Walkie-talkies (22) are fixedly connected to the top side of the support member (5) and the surface of the handrail (8) through connectors. Universal wheels are installed at the four corners of the bottom of the fixed base (6).
5. The lifting device for boiler maintenance as described in claim 3, characterized in that, A drive motor (21) is fixedly connected to the top of the support member (5). A pulley is fixedly connected to the output end of the drive motor (21) and one end of the pulley (20). The two pulleys are connected by a belt.
6. The lifting device for boiler maintenance as described in claim 3, characterized in that, A pulley (4) is provided on one side of the support member (5), and the suspension rope (19) passes through the surface of the pulley (4).
7. The lifting device for boiler maintenance as described in claim 1, characterized in that, The upper side of the limiting member (3) is provided with a pipe array, and a lifting ring is fixedly connected to the surface of the pipe array. The lifting ring is connected to a hook (17) on one side, and the bottom of the pipe array is located on the upper side of the protective pad (9).