Dismounting device for furnace top valve box driving arm
The furnace top valve box drive arm disassembly device simplifies the replacement process by using a shell body and counterweight blocks, enabling single-person operation and improving maintenance efficiency and safety.
Patent Information
- Application Number
- CN202323632496.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2033-12-29
AI Technical Summary
Traditional tools for replacing the furnace top valve box drive arm are cumbersome, labor-intensive, and time-consuming, requiring multiple people and reducing maintenance efficiency.
A furnace top valve box drive arm disassembly device with a shell body, single-beam trolley, lifting assembly, counterweight blocks, and adjustment components that allow for single-person operation, ensuring stability and safety during the lifting and disassembly process.
Simplifies the operation, reduces labor intensity, shortens maintenance time, and enhances efficiency while ensuring safety and reducing the risk of accidents.
Smart Images
Figure CN222204577U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of furnace top equipment, and in particular to a furnace top valve box drive arm disassembly device. Background Art
[0002] The top equipment is the core component of the blast furnace charging system. The shortening of the maintenance time of the top and the precision and efficiency of the maintenance work are the topics that the blast furnace is constantly exploring and innovating. In particular, the trend of modern blast furnace ironmaking is to gradually merge production capacity, gradually shut down small blast furnaces with high energy consumption and serious pollution, replace small blast furnaces with large blast furnaces, and improve equipment efficiency.
[0003] The maintenance of the furnace top equipment of a large blast furnace is no longer a simple manpower investment, but requires efficient and convenient maintenance tools. In the prior art, traditional tools are used to replace the furnace top valve box drive arm, such as using tools such as hoists, which often require the cooperation of multiple people and are cumbersome and laborious to operate. Disassembly and installation are complicated and time-consuming, which increases the labor intensity of workers and reduces the efficiency of maintenance operations, so there is room for improvement. Utility Model Content
[0004] In order to solve the problem that traditional tools are cumbersome to operate when replacing the furnace top valve box driving arm, the present application provides a furnace top valve box driving arm disassembly device.
[0005] The present application provides a furnace top valve box drive arm disassembly device that adopts the following technical solution:
[0006] A furnace top valve box drive arm disassembly device comprises a shell body hoisted on a single-beam trolley, the interior of the shell body is a hollow structure, a beam is arranged at the front end of the shell body, the beam is arranged along the width direction of the shell body, a front end lifting ear for connecting with the drive arm tooling lifting ear is arranged on the beam, a front end locking pin is arranged on the front end lifting ear, a plurality of counterweight blocks are arranged at the rear end of the shell body, and the plurality of counterweight blocks are arranged in the shell body, and an adjustment component for adjusting the counterweight block and a hoisting component for connecting with the single-beam trolley are arranged on the shell body.
[0007] Since the use of traditional tools to replace the furnace top valve box drive arm, such as using tools such as hoists, often requires the cooperation of multiple people and the operation is cumbersome and laborious, and the disassembly and installation are complicated and time-consuming, which increases the labor intensity of workers and reduces the efficiency of maintenance operations; by adopting the above technical solution, when the furnace top valve box drive arm needs to be replaced or repaired, the single-beam trolley is connected to the shell body by a lifting assembly, the front end lifting ear is connected to the tooling lifting ear of the drive arm and fixed by a front end locking pin, and a counterweight block is loaded. The counterweight block is adjusted according to the size of the drive arm and freely adjusted by the adjustment assembly. The counterweight block is at the tail of the shell body. Due to gravity, the valve box drive arm is lifted downward. At this time, the single-beam trolley is slowly pulled outward, and the valve box drive arm is slowly pulled out of the equipment; through the settings of the shell body, the front end lifting ear, the counterweight block, etc., there is no need for the cooperation of multiple people, the operation is simpler, the complexity of the operation is reduced, the time for replacement or maintenance is shortened, and the maintenance efficiency is greatly improved. At the same time, the stability and safety during the operation are ensured, the risk of accidents is reduced, the safe operation of personnel is guaranteed, and the maintenance cost is reduced.
[0008] Optionally, the lifting assembly includes a left lifting ear, a right lifting ear and a tail lifting ear, the left lifting ear and the right lifting ear are both arranged at the front end of the shell, and the left lifting ear and the right lifting ear are respectively arranged on both sides of the shell width direction, and the tail lifting ear is arranged at the tail end of the shell.
[0009] By adopting the above technical scheme, the lifting assembly consists of a left lifting eye, a right lifting eye and a tail lifting eye; the single-beam trolley wraps the wire rope around the pulley, and passes through the left lifting eye, the right lifting eye and the tail lifting eye in sequence for lifting connection; through the setting of the left lifting eye, the right lifting eye and the tail lifting eye, the three lifting eyes form a triangular structure, which effectively disperses and resists these external forces, ensuring the stability and safety of the lifting process, and at the same time, through the movement of the single-beam trolley and the retraction and release of the wire rope, the lifting and disassembly of the drive arm can be easily completed, and the lifting is convenient.
[0010] Optionally, a tail locking pin for connection is provided on the tail lifting ear.
[0011] By adopting the above technical solution, the tail locking pin is installed on the tail lifting ear; through the setting of the tail locking pin, unexpected situations during the lifting process, such as the breaking or loosening of the lifting rope, can be effectively reduced, thereby improving the safety of the lifting process.
[0012] Optionally, each of the counterweight blocks is provided with a notch for snapping into the shell, and the number of notches on each of the counterweight blocks is two.
[0013] By adopting the above technical solution, a slot is opened on the counterweight block, and the counterweight block is inserted into the shell through the slot; through the setting of the slot, the counterweight block can be easily inserted into the slot on the shell, so that the counterweight block can be stably fixed on the shell, avoiding the counterweight block from falling off and improving the stability of the counterweight block installation.
[0014] Optionally, each of the counterweight blocks is provided with two counterweight lifting ears for lifting, the two counterweight lifting ears are connected to the top of the counterweight block, and the two counterweight lifting ears are arranged opposite to each other.
[0015] By adopting the above technical solution, the counterweight lifting ears are welded and fixed on the counterweight block, and the number of the counterweight lifting ears is two; the setting of the counterweight lifting ears facilitates the assembly and transportation of the counterweight block, reduces the shaking and tilting of the counterweight block during the lifting process, makes the operation more convenient, and improves work efficiency.
[0016] Optionally, the adjustment assembly includes four limit blocks, two of the limit blocks form a group, and the two groups of limit blocks are respectively arranged on both sides of the width direction of the shell, and the two sides of the shell are respectively provided with limit slide grooves for the limit blocks to slide, and the limit slide grooves are arranged along the length direction of the shell. Each group of the limit blocks corresponds to a single limit slide groove, and the two limit blocks in each group are respectively arranged on both sides of the counterweight block, and any of the limit blocks is provided with a locking screw for locking.
[0017] By adopting the above technical scheme, the adjustment component includes four limit blocks; when the counterweight block is adjusted according to the size of the driving arm, the locking screw is loosened, and the limit blocks before and after the counterweight block are adjusted, and the limit blocks slide in the limit slide groove to realize the adjustment of the position and quantity of the counterweight block; through the setting of the limit block, the limit slide groove and the locking screw, the position of the counterweight block on the shell is convenient to adjust, so that the counterweight block can be freely adjusted according to the size of the driving arm, thereby improving the adaptability and flexibility of the lifting system and being able to adapt to different lifting requirements. At the same time, the locking effect of the locking screw reduces unexpected situations during the lifting process, such as the falling off or movement of the counterweight block, thereby improving the safety of the lifting process.
[0018] Optionally, two supporting plates are provided at the front end of the shell, and the two supporting plates are respectively arranged on both sides of the shell width direction, and the left lifting ear and the right lifting ear are respectively connected to the corresponding supporting plates.
[0019] By adopting the above technical solution, the two support plates are welded and fixed to the front end of the shell, and the left lifting ear and the right lifting ear are respectively welded and fixed to the corresponding support plates; through the setting of the two support plates, it is possible to provide support for the lifting system, increase the stability of the lifting system, and make the lifting system more stable during the lifting process.
[0020] Optionally, each of the support plates is provided with a positioning pin for cooperating with a tooling hole of the driving arm, and the positioning pin is vertically connected to the top of the support plate.
[0021] By adopting the above technical solution, the locating pin is welded and fixed on the support plate; through the setting of the locating pin, it can be accurately aligned with the tooling hole of the driving arm, ensuring the accurate position between the lifting system and the driving arm, improving the accuracy and stability of the lifting, and ensuring the safety of the lifting process.
[0022] In summary, the present application includes at least one of the following beneficial technical effects:
[0023] Through the settings of the shell, front end lifting lugs, counterweights, etc., there is no need for multiple people to cooperate, the operation is simpler, the complexity of the operation is reduced, the time for replacement or maintenance is shortened, and the maintenance efficiency is greatly improved. At the same time, the stability and safety during the operation are ensured, the risk of accidents is reduced, the safe operation of personnel is guaranteed, and the maintenance cost is reduced;
[0024] The three lifting eyes, namely the left lifting eye, the right lifting eye and the tail lifting eye, form a triangular structure, which effectively disperses and resists these external forces, ensuring the stability and safety of the lifting process. At the same time, the lifting and disassembly of the driving arm can be easily completed through the movement of the single-beam trolley and the retraction and release of the wire rope, making the lifting convenient;
[0025] By setting the limit block, the limit slide groove and the locking screw, the position of the counterweight on the shell can be easily adjusted, so that the counterweight can be freely adjusted according to the size of the driving arm, thereby improving the adaptability and flexibility of the lifting system and being able to adapt to different lifting requirements. At the same time, the locking effect of the locking screw reduces unexpected situations during the lifting process, such as the falling off or movement of the counterweight, thereby improving the safety of the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a schematic diagram of disassembly of a furnace top valve box drive arm disassembly device in an embodiment of the present application.
[0027] Figure 2 It is a structural schematic diagram of a furnace top valve box drive arm disassembly device in an embodiment of the present application.
[0028] Figure 3 It is a right view of a furnace top valve box drive arm disassembly device in an embodiment of the present application.
[0029] Figure 4 It is a top view of a furnace top valve box drive arm disassembly device in an embodiment of the present application.
[0030] Figure 5 It is a schematic diagram of the structure of the counterweight block in the embodiment of the present application.
[0031] Figure 6 It is a structural schematic diagram used to reflect the adjustment component in the embodiment of the present application.
[0032] Explanation of the accompanying drawings: 1. Shell; 2. Single-beam trolley; 3. Main beam; 31. Front end lifting ear; 32. Front end locking pin; 4. Counterweight block; 41. Notch; 42. Counterweight lifting ear; 5. Adjustment assembly; 51. Limit block; 52. Limit slide groove; 53. Locking screw; 6. Lifting assembly; 61. Left lifting ear; 62. Right lifting ear; 63. Tail lifting ear; 64. Tail locking pin; 7. Support plate; 8. Positioning pin; 9. Drive arm. Implementation
[0033] The following is combined with Figure 1-6 This application is described in further detail.
[0034] The present application embodiment discloses a furnace top valve box drive arm disassembly device. Figure 1 The furnace top valve box driving arm disassembly device includes a shell 1, the interior of the shell 1 is a hollow structure. In this embodiment, the shell 1 is made of a 30mm thick steel plate, integrally cast, with a total length of 2000mm and a height of 700mm. The shell 1 must not have cracks, and the overall mechanical properties must be guaranteed. The corners are rounded to eliminate internal stress.
[0035] Reference Figure 1 and Figure 2 A lifting assembly 6 is installed on the shell 1. In this embodiment, the lifting assembly 6 is connected to the single-beam trolley 2. The single-beam trolley 2 is an existing crane structure. The lifting assembly 6 includes a left lifting ear 61, a right lifting ear 62 and a tail lifting ear 63. Two support plates 7 are welded and fixed to the front end of the shell 1. The two support plates 7 are respectively arranged on both sides of the width direction of the shell 1. The left lifting ear 61 and the right lifting ear 62 correspond to the two support plates 7. The left lifting ear 61 and the right lifting ear 62 are respectively welded and fixed on the corresponding support plates 7, and the tail lifting ear 63 is welded and fixed to the tail of the shell 1.
[0036] Reference Figure 1 and Figure 4 A tail locking pin 64 is installed on the tail lifting ear 63; a fixed pulley and a steel wire rope are installed on the single-beam trolley 2, the steel wire rope is wound around the pulley, and passes through the left lifting ear 61, the right lifting ear 62 and the tail lifting ear 63 in sequence for lifting connection. In this embodiment, the passing order of the left lifting ear 61 and the right lifting ear 62 can be exchanged. The three lifting ears form a triangular structure, which effectively disperses and resists these external forces, ensuring the stability and safety of the lifting process. At the same time, through the movement of the single-beam trolley 2 and the retraction and release of the steel wire rope, the lifting and disassembly of the driving arm 9 can be easily completed, and the lifting is convenient.
[0037] Reference Figure 3 and Figure 4A beam 3 is fixedly installed at the front end of the shell 1. The beam 3 is arranged along the width direction of the shell 1. In this embodiment, the cross-section of the beam 3 is circular. The beam 3 is used to prevent the shell 1 from deforming when the valve box is disassembled. A front end ear 31 is welded and fixed on the beam 3. The number of the front end ear 31 can be two groups. A front end locking pin 32 is installed on the front end ear 31. In this embodiment, the front end ear 31 is connected to the tooling ear of the driving arm 9 of the valve box.
[0038] Reference Figure 3 and Figure 4 A locating pin 8 is welded and fixed on each support plate 7, and the locating pin 8 is vertically arranged on the top of the support plate 7. In this embodiment, the locating pin 8 cooperates with the tooling hole of the driving arm 9 of the valve box, which is convenient for lifting the valve box driving arm 9. The support plate 7 and the locating pin 8 components need to be inspected, and the strength must meet the safety factor to accurately align with the tooling hole of the driving arm 9 to ensure that the position between the lifting system and the driving arm 9 is accurate, thereby improving the accuracy and stability of the lifting and ensuring the safety of the lifting process.
[0039] Reference Figure 3 and Figure 5 A plurality of counterweight blocks 4 are arranged at the rear end of the shell 1, and the plurality of counterweight blocks 4 are installed in the shell 1. A slot 41 is opened on the counterweight block 4. There are two slots 41, and the inner diameter of each slot 41 is 31 mm. The counterweight blocks 4 can be easily inserted into the slots 41 on the shell 1, so that the counterweight blocks 4 can be stably fixed on the shell 1, avoiding the counterweight blocks 4 from falling off and improving the stability of the installation of the counterweight blocks 4.
[0040] Reference Figure 3 and Figure 5 Two counterweight lifting ears 42 are welded and fixed on the top of the counterweight block 4. The two counterweight lifting ears 42 are connected to the top of the counterweight block 4, and the two counterweight lifting ears 42 are arranged relatively to realize the assembly and transportation of the counterweight block 4, reducing the shaking and tilting of the counterweight block 4 during the lifting process, making the operation more convenient and improving the work efficiency.
[0041] Reference Figure 3 and Figure 6, an adjustment component 5 is installed on the shell 1, and the adjustment component 5 includes four limit blocks 51. In this embodiment, two limit blocks 51 form a group, and the two groups of limit blocks 51 are respectively arranged on both sides of the width direction of the shell 1. Limit slide grooves 52 are respectively opened on both sides of the shell 1, and the limit slide grooves 52 are opened along the length direction of the shell 1. Two limit blocks 51 in each group correspond to a single limit slide groove 52, and the two limit blocks 51 are slidably connected in the limit slide groove 52, and the two limit blocks 51 are respectively arranged on both sides of the counterweight 4, and any limit block 51 is installed with a locking screw 53 for locking, so as to facilitate the adjustment of the position of the counterweight 4 on the shell 1, so that the counterweight 4 can be freely adjusted according to the size of the driving arm 9, which improves the adaptability and flexibility of the hoisting system and can adapt to different hoisting requirements. At the same time, the locking effect of the locking screw 53 reduces unexpected situations during the hoisting process, such as the falling off or movement of the counterweight 4, thereby improving the safety of the hoisting process.
[0042] The implementation principle of a furnace top valve box drive arm disassembly device in an embodiment of the present application is as follows: when the furnace top valve box drive arm 9 needs to be replaced or repaired, the single-beam trolley 2 will wind the wire rope around the pulley, and pass through the left lifting ear 61, the right lifting ear 62 and the tail lifting ear 63 in sequence for lifting connection, connect the front lifting ear 31 with the tooling lifting ear of the drive arm 9 and fix it through the front locking pin 32, install the counterweight block 4, adjust the counterweight block 4 according to the size of the drive arm 9, loosen the locking screw 53, adjust the limit stopper 51 before and after the counterweight block 4, the limit stopper 51 slides in the limit slide groove 52, and after the counterweight block 4 is adjusted, tighten it again. Tighten the screw 53, match the positioning pin 8 with the tooling hole of the valve box drive arm 9, pull the wire rope, and the counterweight 4 is at the tail of the shell 1. Due to gravity, the valve box drive arm 9 is lifted downward, and the single-beam trolley 2 is slowly pulled outward, and the valve box drive arm 9 is slowly pulled out of the equipment; through the settings of the shell 1, the front end lifting ear 31, the counterweight 4, etc., no multiple people are required to cooperate, the operation is simpler, the complexity of the operation is reduced, the time for replacement or maintenance is shortened, and the maintenance efficiency is greatly improved. At the same time, it ensures stability and safety during operation, reduces the risk of accidents, ensures the safe operation of personnel, and reduces maintenance costs.
[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A furnace top valve box drive arm disassembly device, characterized in that: The invention comprises a shell (1) hoisted on a single-beam trolley (2), the interior of the shell (1) being a hollow structure, a beam (3) being arranged at the front end of the shell (1), the beam (3) being arranged along the width direction of the shell (1), a front end lifting ear (31) being arranged on the beam (3) for connecting with a tooling lifting ear of a driving arm, a front end locking pin (32) being arranged on the front end lifting ear (31), a plurality of counterweight blocks (4) being arranged at the rear end of the shell (1), the plurality of counterweight blocks (4) being arranged in the shell (1), and an adjusting component (5) for adjusting the counterweight block (4) and a hoisting component (6) for connecting with the single-beam trolley (2) being arranged on the shell (1).
2. The furnace top valve box drive arm disassembly device according to claim 1, characterized in that: The lifting assembly (6) comprises a left lifting ear (61), a right lifting ear (62) and a tail lifting ear (63); the left lifting ear (61) and the right lifting ear (62) are both arranged at the front end of the shell (1), and the left lifting ear (61) and the right lifting ear (62) are respectively arranged on both sides of the shell (1) in the width direction; the tail lifting ear (63) is arranged at the tail end of the shell (1).
3. The furnace top valve box drive arm disassembly device according to claim 2, characterized in that: The tail lifting ear (63) is provided with a tail locking pin (64) for connection.
4. The furnace top valve box drive arm disassembly device according to claim 1, characterized in that: Each of the counterweight blocks (4) is provided with a notch (41) for snapping into the housing (1), and the number of the notches (41) on each of the counterweight blocks (4) is two.
5. The furnace top valve box drive arm disassembly device according to claim 4, characterized in that: Each of the counterweight blocks (4) is provided with two counterweight lifting ears (42) for lifting, the two counterweight lifting ears (42) are connected to the top of the counterweight block (4), and the two counterweight lifting ears (42) are arranged opposite to each other.
6. The furnace top valve box drive arm disassembly device according to claim 1, characterized in that: The adjustment assembly (5) comprises four limit blocks (51), two of the limit blocks (51) form a group, the two groups of limit blocks (51) are respectively arranged on both sides of the width direction of the shell (1), the two sides of the shell (1) are respectively provided with limit slide grooves (52) for the limit blocks (51) to slide, the limit slide grooves (52) are arranged along the length direction of the shell (1), each group of the limit blocks (51) corresponds to a single limit slide groove (52), the two limit blocks (51) in each group are respectively arranged on both sides of the counterweight (4), and any of the limit blocks (51) is provided with a locking screw (53) for locking.
7. The furnace top valve box drive arm disassembly device according to claim 2, characterized in that: The front end of the shell (1) is provided with two supporting plates (7) for supporting, the two supporting plates (7) are respectively arranged on both sides of the shell (1) in the width direction, and the left lifting ear (61) and the right lifting ear (62) are respectively connected to the corresponding supporting plates (7).
8. The furnace top valve box drive arm disassembly device according to claim 7, characterized in that: Each of the support plates (7) is provided with a positioning pin (8) for cooperating with a tooling hole of the driving arm, and the positioning pin (8) is vertically connected to the top of the support plate (7).