Electrified quick replacement device of flexible direct-current valve air cooler

Abstract

The invention relates to the technical field of air cooler replacement, and discloses an electrified quick replacement device for a flexible direct-current valve air cooler, which comprises a first guide rail assembly, a second guide rail assembly, a third guide rail assembly and a fourth guide rail assembly, one end of the second guide rail assembly is attached to the end of the first guide rail assembly and matched with the first guide rail assembly to form a conveying guide rail, and the other end of the second guide rail assembly extends out of a work shed of the air cooler to be replaced; the supporting assemblies are arranged on the first guide rail assembly, are in rolling fit with the first guide rail assembly and are used for supporting the air cooler to be replaced, each supporting assembly comprises a clamping assembly, and the clamping assemblies are used for clamping and fixing the air cooler to be replaced. According to the air cooler conveying device, the mode that the air cooler is stably clamped through the clamping assemblies is adopted, shaking of the air cooler in the conveying process can be effectively avoided, the conveying stability is improved, and the conveying efficiency is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of air cooler replacement, and particularly to a live rapid replacement device for an air cooler of a flexible DC valve. Background Art

[0002] To ensure the continuity and safety of power supply, the flexible DC converter substation needs to dissipate heat from its core component - the "converter valve" in real time. Therefore, the uninterrupted operation of the air cooler above the converter valve is crucial for the safe and stable operation of the converter valve and even the entire power station. As a large-scale device, the air cooler is heavy and inconvenient to transport. The traditional method is to use large-scale lifting equipment for transportation. However, restricted by the site conditions, in a narrow working space, large-scale lifting equipment cannot work properly. At the same time, using lifting equipment has a high labor intensity, large potential safety hazards, and cannot achieve rapid repair and replacement, with low work efficiency, seriously affecting the production progress.

[0003] In the prior art, a conveying track is installed on the support steel frame of the air cooler, the air cooler is placed on a bottom plate matching with the track, and the conveying track is extended to convey the air cooler out along the door of the workshop to achieve rapid replacement of the air cooler. However, when the air cooler is conveyed in this way, the air cooler is prone to shaking, with poor stability, and is easily damaged, affecting the conveying efficiency. Summary of the Invention

[0004] The purpose of the present invention is to overcome the problem of poor conveying stability existing in the prior art, and provide a live rapid replacement device for an air cooler of a flexible DC valve, which has the function of high conveying stability.

[0005] To achieve the above purpose, the present invention provides a live rapid replacement device for an air cooler of a flexible DC valve, including:

[0006] A first guide rail assembly for being installed on the mounting frame of the air cooler to be replaced;

[0007] A second guide rail assembly, one end of which is attached to the end of the first guide rail assembly and forms a conveying guide rail in cooperation with the first guide rail assembly, and the other end of the second guide rail assembly extends out of the shed of the air cooler to be replaced;

[0008] A plurality of support assemblies are arranged on the first guide rail assembly and are in rolling cooperation with the first guide rail assembly for supporting the air cooler to be replaced. The support assembly includes a clamping assembly for clamping and fixing the air cooler to be replaced.

[0009] Optionally, the support assembly further includes:

[0010] Support plate;

[0011] Roller group, arranged at the bottom of the support plate and used for rolling cooperation with the first guide rail assembly and the second guide rail assembly.

[0012] Optionally, the clamping assembly includes:

[0013] Two groups of clamping mechanisms, symmetrically arranged at the tops of both ends of the support plate perpendicular to the conveying direction, and the two groups of clamping mechanisms are used to cooperate with the top of the support plate to clamp and fix the air cooler to be replaced;

[0014] Two groups of adjusting mechanisms, respectively arranged at both ends of the support plate in the conveying direction and respectively connected to the two groups of clamping mechanisms, and used for adjusting the distance between the two groups of clamping mechanisms.

[0015] Optionally, the clamping mechanism includes:

[0016] Two groups of fixing plates, respectively arranged at both ends of the support plate in the conveying direction;

[0017] Rotating shaft, both ends of the rotating shaft are respectively rotatably connected to the two groups of fixing plates;

[0018] Rotating seat, fixedly sleeved on the outside of the rotating shaft;

[0019] Clamping plate, arranged on the side wall of the rotating seat, and the clamping plate is inclined along the center of the support plate;

[0020] Top clamping assembly, arranged on the top of the clamping plate and located at the high-position end of the clamping plate, and used for clamping and limiting the top of the air cooler to be replaced.

[0021] Optionally, the top clamping assembly includes:

[0022] Multiple top plates, arranged on the top of the clamping plate and evenly distributed along the conveying direction of the support plate;

[0023] Multiple sleeves, respectively arranged on the side of multiple top plates close to the support plate;

[0024] Multiple cylinders, respectively slidably arranged inside the multiple sleeves, and one end of the cylinder extends out of the corresponding sleeve;

[0025] Multiple springs, respectively arranged inside the multiple sleeves, one end of the spring is connected to the inner bottom of the sleeve, and the other end of the spring is connected to the end of the cylinder located inside the sleeve;

[0026] Limit assembly, arranged on the side of multiple top plates away from the corresponding sleeves, and used for limiting the positions of the multiple cylinders.

[0027] Optionally, the limiting component includes:

[0028] A plurality of limiting holes are respectively opened at the ends of the plurality of columns located inside the sleeve;

[0029] A plurality of limiting rods, one end of the limiting rod is in cooperation with the corresponding limiting hole for limiting;

[0030] A limiting plate is arranged on one side of the plurality of top plates away from the corresponding sleeve, and is vertically distributed with the plurality of top plates. The other ends of the plurality of limiting rods respectively pass through the corresponding springs, the sleeves and the top plates and are connected to the limiting plate.

[0031] Optionally, the rotating seat is connected to the fixed plate through a torsion spring.

[0032] Optionally, the first guide rail assembly includes:

[0033] Two groups of first moving guide rails are arranged in parallel;

[0034] A plurality of first L-shaped plates are uniformly arranged at the bottom of the two groups of first moving guide rails and are used to cooperate with the bottom of the first moving guide rails to clamp on the I-beam of the mounting frame.

[0035] Optionally, the second guide rail assembly includes:

[0036] Two groups of I-beam columns, each group of I-beam columns includes a plurality of them, and the plurality of I-beam columns in the two groups are correspondingly arranged in parallel;

[0037] A plurality of steel pipe cross beams are arranged between the two corresponding I-beam columns in the two groups;

[0038] A plurality of inclined reinforcing ribs are arranged between the adjacent two I-beam columns in each group;

[0039] Two groups of second moving guide rails are respectively arranged on the tops of the two groups of I-beam columns;

[0040] A plurality of second L-shaped plates are uniformly arranged at the bottom of the two groups of second moving guide rails and are used to cooperate with the bottom of the second moving guide rails to clamp on the I-beam columns.

[0041] Optionally, the adjusting mechanism includes:

[0042] Two chutes are opened on the two side walls of the support plate in the conveying direction;

[0043] A plurality of card slots are symmetrically formed on two side walls of the support plate in the conveying direction. The plurality of card slots on each side wall of the support plate in the conveying direction are linearly arrayed and communicate with the bottom end of the corresponding sliding groove.

[0044] Two clamping blocks are respectively arranged at the bottom ends of two groups of the fixing plates. The clamping blocks are used for clamping and cooperating with the card slots.

[0045] Through the above technical solutions, the charged rapid replacement device of the flexible DC valve air cooler provided by the present invention disassembles and hoists the air cooler to be replaced from the mounting frame, installs the first guide rail assembly on the mounting frame, places the second guide rail assembly at the end of the first guide rail assembly, then places a plurality of support assemblies on the first guide rail assembly, places the air cooler to be replaced on the plurality of support assemblies, and clamps and fixes the air cooler to be replaced through the clamping assembly. Furthermore, the air cooler can be stably conveyed out of the shed along the first guide rail assembly and the second guide rail assembly. By adopting the method of stably clamping the air cooler through the clamping assembly, the shaking generated during the conveying process of the air cooler can be effectively avoided, the conveying stability is improved, and the conveying efficiency is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 is a schematic structural diagram of the charged rapid replacement device according to an embodiment of the present invention;

[0047] Figure 2 is according to Figure 1 the enlarged schematic view of area A in

[0048] Figure 3 is a schematic structural diagram of the clamping assembly in the charged rapid replacement device according to an embodiment of the present invention;

[0049] Figure 4 is according to Figure 3 the enlarged schematic view of area B in

[0050] Figure 5 is a schematic structural diagram of the air cooler in the charged rapid replacement device according to an embodiment of the present invention;

[0051] Figure 6 is a schematic structural diagram of the first guide rail assembly and the second guide rail assembly in the charged rapid replacement device according to an embodiment of the present invention;

[0052] Figure 7 is according to Figure 6 the enlarged schematic view of area C in

[0053] Figure 8 is a schematic diagram of the static finite element analysis result of the auxiliary support structure of the second moving guide rail in the charged rapid replacement device according to an embodiment of the present invention;

[0054] Figure 9 Schematic diagram of the convergence process of the objective function of the I-beam column parameters in the live quick replacement device according to an embodiment of the present invention;

[0055] Figure 10 Schematic diagram of the finite element simulation result of the steel frame after optimizing the auxiliary support structure of the second moving guide rail in the live quick replacement device according to an embodiment of the present invention;

[0056] Figure 11 Cross-sectional schematic diagram of the first moving guide rail and / or the second moving guide rail in the live quick replacement device according to an embodiment of the present invention;

[0057] Figure 12 Schematic diagram of the finite element analysis result of the first moving guide rail and / or the second moving guide rail in the live quick replacement device according to an embodiment of the present invention;

[0058] Figure 13 Schematic diagram of the convergence process of the objective function of the cross-sectional parameters of the first moving guide rail and / or the second moving guide rail in the live quick replacement device according to an embodiment of the present invention;

[0059] Figure 14 Schematic diagram of the finite element simulation result of the first moving guide rail and / or the second moving guide rail after optimization in the live quick replacement device according to an embodiment of the present invention;

[0060] Figure 15 Cross-sectional schematic diagram of the grooved first moving guide rail and / or the second moving guide rail in the live quick replacement device according to an embodiment of the present invention;

[0061] Figure 16 Schematic diagram of the finite element simulation result of the simplified guide rail of the first moving guide rail and / or the second moving guide rail in the live quick replacement device according to an embodiment of the present invention.

[0062] Description of reference numerals

[0063] 1. Support plate 2. Roller group

[0064] 3. Clamping plate 4. Limiting plate

[0065] 5. Top plate 6. Sleeve

[0066] 7. Column body 8. Rubber pad

[0067] 9. Rotating seat 10. Torsion spring

[0068] 11. Fixed plate 12. Chute

[0069] 13. Card slot 14. Spring

[0070] 15. Limit hole 16. Limit rod

[0071] 17. Air cooler 18. Mounting bracket

[0072] 19. First moving guide rail 20. First L-shaped plate

[0073] 21. First guide rail assembly 22. Second moving guide rail

[0074] 23. I-beam column 24. Steel pipe cross beam

[0075] 25. Inclined reinforcing rib Detailed implementation manners

[0076] The following will describe in detail the specific implementation manners of the embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific implementation manners described herein are only used to illustrate and explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention.

[0077] Figure 1 is a schematic structural diagram of a live fast replacement device according to an embodiment of the present invention. Figure 5 is a schematic structural diagram of the air cooler in the live fast replacement device according to an embodiment of the present invention. Figure 6 is a schematic structural diagram of the first guide rail assembly and the second guide rail assembly in the live fast replacement device according to an embodiment of the present invention. In Figure 1 , Figure 5 and Figure 6 , the live fast replacement device may include a first guide rail assembly 21, a second guide rail assembly, and a plurality of support assemblies. Specifically, the support assembly may include a clamping assembly.

[0078] The first guide rail assembly 21 is used to be installed on the mounting bracket 18 of the air cooler 17 to be replaced. One end of the second guide rail assembly is attached to the end of the first guide rail assembly 21 and cooperates with the first guide rail assembly 21 to form a conveying guide rail. The other end of the second guide rail assembly extends out of the shed of the air cooler 17 to be replaced. A plurality of support assemblies are arranged on the first guide rail assembly 21 and are in rolling cooperation with the first guide rail assembly 21 for supporting the air cooler 17 to be replaced. The support assembly includes a clamping assembly, and the clamping assembly is used to clamp and fix the air cooler 17 to be replaced.

[0079] When the air cooler 17 needs to be replaced while being energized, the air cooler 17 to be replaced is disassembled and lifted from the mounting frame 18. Then, the first guide rail assembly 21 is installed on the mounting frame 18 of the air cooler 17 to be replaced, and the end of the second guide rail assembly is fitted to the end of the first guide rail assembly 21 to cooperate to form a conveying guide rail. Specifically, the other end of the second guide rail assembly extends out of the shed / workshop of the air cooler 17 to be replaced. Finally, a plurality of support assemblies are arranged on the first guide rail assembly 21, and the lifted air cooler 17 to be replaced is driven to descend to contact the tops of the plurality of support assemblies. The plurality of support assemblies support the air cooler 17 to be replaced, and the clamping assemblies thereon clamp and fix the air cooler 17 to be replaced, so that the air cooler 17 to be replaced can be conveyed out of the shed along the first guide rail assembly 21 and the second guide rail assembly, facilitating the subsequent replacement and installation of the air cooler 17.

[0080] During the traditional replacement and conveying of the air cooler, a conveying track is installed on the support steel frame of the air cooler 17. The air cooler 17 is placed on a bottom plate that cooperates with the track, and the conveying track is extended to convey the air cooler 17 out along the door of the workshop to achieve the rapid replacement of the air cooler 17. However, when the air cooler 17 is conveyed in this way, the air cooler 17 is prone to shaking, with poor stability, and is likely to cause damage to the air cooler 17, affecting the conveying efficiency. In this embodiment of the present invention, by using the clamping assembly to stably clamp the air cooler 17, it can effectively avoid the shaking of the air cooler 17 during the conveying process, improve the stability of the conveying, and ensure the conveying efficiency.

[0081] In this embodiment of the present invention, as Figure 1 shown, the support assembly may include a support plate 1 and a roller group 2. The roller group 2 is arranged at the bottom of the support plate 1 and is used for rolling cooperation with the first guide rail assembly 21 and the second guide rail assembly. Specifically, the roller group 2 may include, but is not limited to, the way of rotationally cooperating a rotating shaft and two rollers known to those skilled in the art.

[0082] In this embodiment of the present invention, as Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, the clamping assembly may include two groups of clamping mechanisms and two groups of adjusting mechanisms.

[0083] The two groups of clamping mechanisms are symmetrically arranged at the tops of both ends of the support plate 1 perpendicular to the conveying direction, and the two groups of clamping mechanisms are used to cooperate with the top of the support plate 1 to clamp and fix the air cooler 17 to be replaced. The two groups of adjusting mechanisms are respectively arranged at both ends of the support plate 1 in the conveying direction and are respectively connected to the two groups of clamping mechanisms to adjust the distance between the two groups of clamping mechanisms.

[0084] When it is necessary to clamp and fix the air cooler 17 to be replaced, the two groups of adjusting mechanisms can be adjusted according to the model or size of the air cooler 17 to be replaced, so that the distance between the two groups of clamping mechanisms meets the clamping requirements of the air cooler 17 to be replaced. After the adjustment is completed, the air cooler 17 to be replaced is placed on the top of the support plate 1, and the two groups of clamping mechanisms are driven to clamp and fix the air cooler 17 to be replaced, and cooperate with the support plate 1 to realize the stable limitation of the air cooler 17 to be replaced, and avoid damage caused by shaking of the air cooler 17 to be replaced during transportation. In addition, the adjusting mechanism can be applied to the replacement and transportation of air coolers 17 of different types / sizes, with stronger versatility and wider application range.

[0085] In this embodiment of the present invention, as Figure 2 shown, the clamping mechanism may include two groups of fixing plates 11, a rotating shaft, a rotating seat 9, a clamping plate 3 and a top clamping assembly.

[0086] The two groups of fixing plates 11 are respectively arranged at both ends of the support plate 1 in the conveying direction, and both ends of the rotating shaft are rotatably connected to the two groups of fixing plates 11. The rotating seat 9 is fixedly sleeved on the outer side of the rotating shaft, the clamping plate 3 is arranged on the side wall of the rotating seat 9, and the clamping plate 3 is inclined along the center of the support plate 1. The top clamping assembly is arranged on the top of the clamping plate 3 and is located at the high-position end of the clamping plate 3 for clamping and limiting the top of the air cooler 17 to be replaced.

[0087] During the process of the air cooler 17 to be replaced falling onto the top of the support plate 1, the two ends of the air cooler 17 to be replaced first contact the lower inclined ends of the clamping plate 3 and push the clamping plate 3 to drive the rotating seat 9 to rotate along the rotating shaft. The upper inclined end of the clamping plate 3 gradually rotates upward until the top clamping assembly is directly above the air cooler 17 to be replaced. At this time, the side wall of the air cooler 17 to be replaced is attached to the clamping plate 3. Start the top clamping assembly to clamp and limit the top of the air cooler 17 to be replaced, and cooperate with the clamping plate 3 and the support plate 1 to limit and fix the air cooler 17 stably and reliably, effectively ensuring the reliability of the transportation of the air cooler 17 to be replaced.

[0088] In this embodiment of the present invention, for the inclination angle of the clamping plate 3 along the center of the support plate 1, it may include 15° - 30°, that is, a slight inclination, so that the top clamping assembly can make way for the falling of the air cooler 17.

[0089] In this embodiment of the present invention, as Figure 3 and Figure 4 shown, the top clamping assembly may include a plurality of top plates 5, a plurality of sleeves 6, a plurality of columns 7, a plurality of springs 14 and a limiting assembly.

[0090] A plurality of top plates 5 are arranged on the top of the clamping plate 3 and are evenly distributed along the conveying direction of the support plate 1. A plurality of sleeves 6 are respectively arranged on one side of the plurality of top plates 5 close to the support plate 1. A plurality of cylinders 7 are respectively slidably arranged inside the plurality of sleeves 6, and one end of the cylinder 7 extends out of the corresponding sleeve 6. A plurality of springs 14 are respectively arranged inside the plurality of sleeves 6. One end of the spring 14 is connected to the inner bottom of the sleeve 6, and the other end of the spring 14 is connected to the end of the cylinder 7 located inside the sleeve 6. A limiting component is arranged on one side of the plurality of top plates 5 away from the corresponding sleeves 6 for limiting the positions of the plurality of cylinders 7.

[0091] When the clamping plate 3 rotates to be parallel / in contact with the side wall of the air cooler 17 to be replaced, the limiting effect of the limiting component is released. A plurality of (compressed) springs 14 push the corresponding cylinders 7 to extend out of the corresponding sleeves 6. One end of the cylinder 7 contacts the top of the air cooler 17 to be replaced and abuts against the air cooler 17, so as to realize the limiting and fixing of the air cooler 17 to be replaced. On the contrary, pushing the cylinder 7 to reset into the corresponding sleeve 6, the spring 14 is compressed, and the cylinder 7 is limited and fixed by the limiting component, so that the limiting and fixing of the air cooler 17 can be released. By adopting this method, the stability and convenience of the limiting and fixing of the air cooler 17 can be effectively improved.

[0092] In this embodiment of the present invention, as Figure 1 and Figure 3 shown, further considering to avoid damage to the air cooler 17 when the cylinder 7 abuts against it, a rubber pad 8 is arranged at one end of the cylinder 7 for protecting the abutting surface.

[0093] In this embodiment of the present invention, as Figure 3 and Figure 4 shown, the limiting component may include a plurality of limiting holes 15, a plurality of limiting rods 16 and a limiting plate 4.

[0094] A plurality of limiting holes 15 are respectively opened at the ends of the plurality of cylinders 7 located inside the sleeves 6, and one end of the limiting rod 16 is matched and limited with the corresponding limiting hole 15. The limiting plate 4 is arranged on one side of the plurality of top plates 5 away from the corresponding sleeves 6 and is perpendicularly distributed to the plurality of top plates 5. The other ends of the plurality of limiting rods 16 respectively pass through the corresponding springs 14, sleeves 6 and top plates 5 and are connected to the limiting plate 4.

[0095] When it is necessary to limit and fix the plurality of cylinders 7, move the limiting plate 4 to drive the plurality of limiting rods 16 to move synchronously into the corresponding limiting holes 15. Due to the matching and limiting effect between the limiting rod 16 and the limiting hole 15, the synchronous limiting of the plurality of cylinders 7 can be realized. On the contrary, move the limiting plate 4 in the reverse direction, the plurality of limiting rods 16 move out of the corresponding limiting holes 15, and the cylinder 7 moves out of the corresponding sleeve 6 under the action of the compressed spring 14 to abut against the air cooler 17.

[0096] In this embodiment of the present invention, for the limiting structure formed by the cooperation of the limiting hole 15 and the limiting rod 16, it can include various types known to those skilled in the art, including but not limited to the structure formed by the cooperation of an L-shaped hole and an L-shaped rod, etc.

[0097] In this embodiment of the present invention, as Figure 2 shown, the rotating seat 9 may further include a torsion spring 10. Specifically, the rotating seat 9 is connected to the fixing plate 11 through the torsion spring 10, and the torsion spring 10 can facilitate the reset of the clamping plate 3 to the inclined state, facilitating the next clamping and fixing.

[0098] In this embodiment of the present invention, as Figure 2 shown, each set of adjusting mechanisms may include two sliding grooves 12, a plurality of clamping grooves 13, and two clamping blocks.

[0099] The two sliding grooves 12 are respectively opened on the two side walls of the support plate 1 in the conveying direction, and the plurality of clamping grooves 13 are symmetrically opened on the two side walls of the support plate 1 in the conveying direction. The plurality of clamping grooves 13 on each side wall are arranged in a linear array and communicate with the bottom ends of the corresponding sliding grooves 12. The two clamping blocks are respectively arranged at the bottom ends of the two sets of fixing plates 11, and the clamping blocks are slidably matched with the corresponding sliding grooves 12 and the clamping grooves 13, and are clamped and matched with the clamping grooves 13.

[0100] When it is necessary to adjust the distance between the two sets of clamping mechanisms, pull the two sets of fixing plates 11 in each set of clamping mechanisms to rise synchronously, driving the corresponding clamping blocks to move from the clamping grooves 13 into the sliding grooves 12. Then horizontally move the two sets of fixing plates 11 so that the two clamping blocks slide horizontally along the corresponding sliding grooves 12 until reaching a suitable position, and then release the two sets of fixing plates 11. The two clamping blocks slide into the corresponding clamping grooves 13, and the clamping grooves 13 limit and fix the clamping blocks and the fixing plates 11. Specifically, further considering the reliability and stability of the clamping grooves 13 for limiting the clamping blocks, the clamping grooves 13 and the clamping blocks include but are not limited to being square.

[0101] In this embodiment of the present invention, as Figure 6 and Figure 7 shown, the first guide rail assembly 21 may include two sets of first moving guide rails 19 and a plurality of first L-shaped plates 20.

[0102] The two sets of first moving guide rails 19 are distributed in parallel, and the plurality of first L-shaped plates 20 are evenly arranged at the bottom of the two sets of first moving guide rails 19 and are used to cooperate with the bottom of the first moving guide rails 19 to clamp onto the I-beam of the mounting bracket 18.

[0103] After lifting the air cooler 17 to be replaced, two sets of first moving guide rails 19 are installed on the two I-beams of the mounting frame 18. Specifically, the first moving guide rail 19 and a plurality of first L-shaped plates 20 thereon cooperate to form a notch for clamping and engaging with the I-beam, and thus can be stably installed on the mounting frame 18.

[0104] In this embodiment of the present invention, as Figure 6 shown, the second guide rail assembly may include two sets of I-beam columns 23, a plurality of steel pipe cross beams 24, a plurality of inclined reinforcing ribs 25, two sets of second moving guide rails 22, and a plurality of second L-shaped plates.

[0105] Each set of I-beam columns 23 includes a plurality, and the plurality of I-beam columns 23 in the two sets are correspondingly and parallelly distributed. The steel pipe cross beam 24 is arranged between two corresponding I-beam columns 23 in the two sets, and the inclined reinforcing rib 25 is arranged between two adjacent I-beam columns 23 in each set. The two sets of second moving guide rails 22 are respectively arranged on the tops of the two sets of I-beam columns 23, and a plurality of second L-shaped plates are evenly arranged at the bottoms of the two sets of second moving guide rails 22 for cooperating with the bottoms of the second moving guide rails 22 to clamp on the I-beam columns 23.

[0106] After installing the first guide rail assembly 21 on the mounting frame 18 of the air cooler 17 to be replaced, the two sets of I-beam columns 23 are then moved to the vicinity of the end of the first guide rail assembly 21. Specifically, the two sets of second moving guide rails 22 are moved to be flush and fitted with the ends of the first moving guide rails 19, thereby forming a stable conveying track.

[0107] In this embodiment of the present invention, as Figure 6 shown, the height of the I-beam column 23 may include 4.1 meters, 18# I-beam is selected, the length of the steel pipe cross beam 24 may include 2 meters, the length of the inclined reinforcing rib 25 may include 3.3 meters, and the material is all Q234 steel. The safety factor is taken as 1.5, and the allowable stress [σ] = 156 MPa.

[0108] The loads of the steel frame structure can be divided into three categories: permanent load, variable load, and accidental load. For this frame structure, the permanent load includes the self-weight of the steel frame + guide rails + the weight of the air cooler. The variable loads include the floor live load on the walkways on both sides of the steel frame, wind load, snow load, and temperature effect; the accidental loads include earthquake action, etc. Considering the working location and environment of this structure, the snow load and accidental loads are not considered. The permanent load of the steel frame structure is taken as 5 tons, and the wind load is taken as 1.5 tons. Before the static analysis of the steel frame, the loads must be analyzed and combined. According to the load analysis, the loading method of the steel frame structure is: 1.2 times the permanent load + 1.4 times the wind load.

[0109] The results of the static finite element analysis of the auxiliary support structure are as Figure 8As shown, the maximum deformation of the guide rail is 0.96 mm, which is less than the enterprise requirement; the maximum stress is 96.96 MPa, which is less than the allowable stress of 156 MPa, and there is a large room for optimization. Therefore, the auxiliary support structure is optimized. Specifically, Figure 8 The left figure in the middle is the stress nephogram of the steel frame, and the right figure is the displacement nephogram of the steel frame.

[0110] Specifically, the waist height h and waist width b of the column section, the width d of the steel pipe cross beam 24, the thickness t1 and the thickness t2 of the stiffener are selected as design variables, the deflection constraint and strength constraint of the steel frame are used as constraint conditions, and the minimum mass of each member is used as the objective function. The size ranges of the design variables are shown in Table 1.

[0111] Table 1 Design Variable Design Range

[0112]

[0113] The mathematical model for the optimization of the steel frame structure is shown in Equation (1):

[0114]

[0115] Among them, M represents the total mass of the steel frame members, F max represents the maximum axial tensile (compressive) force of the steel frame members, M max represents the maximum bending moment borne by the steel frame members, A represents the cross-sectional area of the steel frame members, W represents the section modulus of the steel frame members for bending resistance. q represents the concentrated load acting on the column support, l represents the column height, E represents the elastic modulus of the steel frame material, I represents the moment of inertia of the cross-section of the steel frame members, and [ω] represents the allowable deflection.

[0116] The multi-island genetic algorithm (MIGA) is used for global optimization to find the optimal column parameters. The algorithm optimization convergence process is as Figure 9 shown. When iterating to 198 steps, the algorithm reaches convergence, and the value of the objective function is output as 1260 kg.

[0117] According to the optimization results, the optimized parameters are obtained. Considering the processing, the optimized parameters are rounded, and the comparison with before optimization is shown in Table 2.

[0118] Table 2 Data of Column Design Variables Before and After Optimization

[0119]

[0120] Specifically, the column in Table 2 is the I-beam column 23, the cross beam is the steel pipe cross beam 24, and the stiffener is the inclined stiffener 25.

[0121] Furthermore, the Abaqus software is used to perform a static analysis on the optimized guide rail structure under the same conditions, as Figure 10As shown. After the optimization of the column structure, the overall mass is reduced by 217 kg, which is 23.3% lighter than the existing steel frame. In addition, although the maximum combined stress and the maximum displacement increase, they are still within the allowable range of strength and stiffness and meet the requirements. Specifically, Figure 10 The left figure in the middle is the stress nephogram of the optimized steel frame, and the right figure is the displacement nephogram of the optimized steel frame.

[0122] In this embodiment of the present invention, the specific forms of the first moving guide rail 19 and the second moving guide rail 22 may include a rectangular steel pipe mechanism, and its cross-section is as Figure 11 shown. Specifically, in Figure 11 , X and Y are respectively the length and width of the outer rectangle, and t is the wall thickness of the rectangular pipe. The material of the guide rail is a hollow rectangular steel pipe made of Q235 steel, with an outer side length of 100 mm, an outer side width of 80 mm, and a wall thickness of 4 mm. It has the advantages of large cross-section moment of inertia, high strength, and reduced mass of the rod. The safety factor is taken as 1.5, and the allowable stress [σ] = 156.7 MPa.

[0123] A three-dimensional model of the guide rail structure is established in the SoildWorks software, and then the mesh is divided in the finite element analysis software Hypermesh to establish a finite element model. After applying constraints and loads, finally, the simulation calculation is carried out in Ls-dyna. The static analysis results of the moving guide rail structure are as Figure 12 shown. Specifically, Figure 12 The left figure in the middle is the stress nephogram of the moving guide rail, and the right figure is the displacement nephogram of the moving guide rail.

[0124] The length, width, and wall thickness of the guide rail structure are selected as design variables, and the dimension ranges of the parameters are shown in Table 3.

[0125] Table 3 Design variable design range of the moving guide rail

[0126]

[0127] Since the number of rectangular pipes forming the guide rail and the length of each rectangular pipe are determined, the smaller the cross-sectional area of the rectangular pipe, the smaller the overall mass of the guide rail. In order to simplify the objective function and improve the iteration speed of the algorithm, the cross-sectional area of the rectangular steel pipe is used as the objective function, as shown in Equation 2:

[0128] minf = X * Y - (X - t) * (Y - t), (2)

[0129] Among them, X represents the length of the rectangular steel pipe, Y represents the width of the rectangular steel pipe, and t represents the wall thickness of the rectangular steel pipe.

[0130] The constraint conditions of the moving guide rail structure mainly include: the stability constraint of the support leg and the strength constraint of the rectangular pipe. The stability constraint of the support leg is as shown in Equation 3:

[0131]

[0132] Among them, E represents the elastic modulus of the Q235 steel, the material of the moving guide rail, I represents the moment of inertia of the cross-section of the moving guide rail, L represents the length of the support leg, and F N represents the vertical pressure borne by the support leg.

[0133] The strength constraint of the rectangular tube steel pipe is shown in Equation 4:

[0134]

[0135] Among them, M represents the total mass of the steel frame members, and F max represents the maximum axial tensile (compressive) force of the support leg, and M max represents the maximum bending moment borne by the support leg, A represents the cross-sectional area of the guide rail, and W represents the section modulus of the moving guide rail for bending resistance.

[0136] The multi-island genetic algorithm (MIGA) is used for global optimization to find the optimal guide rail section parameters. The algorithm optimization convergence process is as Figure 13 shown. When iterating to 209 steps, the algorithm converges, and the value of the objective function f output is 756 mm 2 .

[0137] According to the optimization results, the optimized parameters are obtained. Considering the processing, the optimized parameters are rounded, and the results are shown in Table 4.

[0138] Table 4 Data of the moving guide rail design variables before and after optimization

[0139]

[0140] Furthermore, the mass of the optimized guide rail is 78.3368 kg. The static analysis of the optimized guide rail structure under the same conditions is carried out using Abaqus software, as Figure 14 shown. It can be seen from Figure 14 that the maximum deformation of the optimized truss structure under the same working conditions is 2.282 mm, and the maximum stress is 61.25 MPa, both of which meet the requirements. Specifically, Figure 14 the left figure in

[0141] is the stress nephogram of the optimized guide rail structure, and the right figure is the deformation nephogram of the optimized guide rail structure. Figure 15 The stress of the guide rail after the cross-section parameters are optimized is 61.25 Mpa, which is less than the allowable stress of 156 Mpa. Therefore, the guide rail structure can be further simplified. The side cross-section of the guide rail is grooved. After performing Abaqus analysis on the guide rail, the number and size of the grooves are determined. The groove spacing is 150 mm, the groove size is 150×40 mm, and the cross-section of the grooved guide rail is as

[0142] The comparison of the guide rail quality before and after the optimization of the side structure of the moving guide rail is shown in Table 5 below.

[0143] Table 5 Comparison data of the guide rail quality before and after optimization

[0144]

[0145] Perform a static analysis on the simplified truss structure under the same conditions. As Figure 16 shown, the maximum deformation of the simplified guide rail structure is 3.6 mm, and the maximum stress is 114 MPa. The mass of the simplified guide rail is 65.5712 kg, which is reduced by 16.3%. Specifically, Figure 16 the left figure in the middle is the stress nephogram of the simplified guide rail structure, and the right figure is the displacement nephogram of the simplified guide rail structure.

[0146] In this embodiment of the present invention, for the drive of the support assembly, a motion control scheme of an automatic guided vehicle (AGV) based on active disturbance rejection and magnetic navigation technology can be adopted. The magnetic navigation technology is used to realize the speed planning of the AGV movement process, so that the AGV platform can run stably and brake at the specified positions; at the same time, a speed controller is designed based on active disturbance rejection control (ADRC) to accurately control the running speed of the AGV.

[0147] Through the above technical solutions, the charged quick replacement device of the flexible DC valve air cooler 17 provided by the present invention disassembles and hoists the air cooler 17 to be replaced from the mounting frame 18, installs the first guide rail assembly 21 on the mounting frame 18, places the second guide rail assembly at the end of the first guide rail assembly 21, then places a plurality of support assemblies on the first guide rail assembly 21, places the air cooler 17 to be replaced on the plurality of support assemblies, and clamps and fixes the air cooler 17 to be replaced through the clamping assembly. Furthermore, the air cooler 17 can be stably transported out of the shed along the first guide rail assembly 21 and the second guide rail assembly. By adopting the method of stably clamping the air cooler 17 through the clamping assembly, the shaking generated during the transportation of the air cooler 17 can be effectively avoided, the transportation stability is improved, and the transportation efficiency is guaranteed.

[0148] It should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover a non-exclusive inclusion, so that a process, method, commodity or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, commodity or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, commodity or device including the element.

[0149] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A live rapid replacement device for a flexible DC valve air cooler, characterized in that: include: A first guide rail assembly, used for mounting on a mounting frame of the air cooler to be replaced; A second guide rail assembly, one end of which is in contact with the end of the first guide rail assembly and cooperates with the first guide rail assembly to form a conveying guide rail, and the other end of the second guide rail assembly extends out of the shed of the air cooler to be replaced; A plurality of support components are arranged on the first guide rail component and rollingly cooperate with the first guide rail component for supporting the air cooler to be replaced. The support component includes a clamping component for clamping and fixing the air cooler to be replaced.

2. The live rapid replacement device according to claim 1, characterized in that: The support assembly also includes: Support plate; The roller group is arranged at the bottom of the support plate and is used for rolling cooperation with the first guide rail assembly and the second guide rail assembly.

3. The live rapid replacement device according to claim 2, characterized in that: The clamping assembly comprises: Two groups of clamping mechanisms are symmetrically arranged at the top of both ends of the support plate perpendicular to the conveying direction, and the two groups of clamping mechanisms are used to cooperate with the top of the support plate to clamp and fix the air cooler to be replaced; Two groups of adjustment mechanisms are respectively arranged at two ends of the support plate in the conveying direction and are respectively connected to the two groups of clamping mechanisms for adjusting the distance between the two groups of clamping mechanisms.

4. The live rapid replacement device according to claim 3, characterized in that: The clamping mechanism comprises: Two sets of fixed plates are respectively arranged at two ends of the support plate in the conveying direction; A rotating shaft, both ends of which are rotatably connected to the two sets of fixing plates respectively; A rotating seat, wherein the fixed sleeve is arranged on the outer side of the rotating shaft; A clamping plate, arranged on the side wall of the rotating seat, and the clamping plate is arranged obliquely along the center of the supporting plate; The top clamp assembly is arranged on the top of the clamping plate and is located at the high end of the clamping plate, and is used to clamp and limit the top of the air cooler to be replaced.

5. The live rapid replacement device according to claim 4, characterized in that: The top clamp assembly comprises: A plurality of top plates are arranged on the top of the clamping plate and are evenly distributed along the conveying direction of the support plate; A plurality of sleeves are respectively arranged on one side of a plurality of top plates close to the support plate; A plurality of columns are slidably disposed inside the plurality of sleeves, and one end of each column extends out of the corresponding sleeve; A plurality of springs are respectively arranged inside the plurality of sleeves, one end of each spring is connected to the inner bottom of each sleeve, and the other end of each spring is connected to the end of each column located inside the sleeve; A limiting assembly is arranged on one side of the plurality of top plates away from the corresponding sleeves, and is used to limit the positions of the plurality of columns.

6. The live rapid replacement device according to claim 5, characterized in that: The limiting component comprises: A plurality of limiting holes are respectively provided at the ends of the plurality of columns located in the sleeve; A plurality of limiting rods, one end of each limiting rod being matched with the corresponding limiting hole for limiting position; The limiting plate is arranged on one side of the top plates away from the corresponding sleeve and is vertically distributed with the top plates. The other ends of the limiting rods respectively pass through the corresponding springs, the sleeves and the top plates and are connected with the limiting plate.

7. The live rapid replacement device according to claim 4, characterized in that: The rotating seat is connected to the fixing plate through a torsion spring.

8. The live rapid replacement device according to claim 1, characterized in that: The first guide rail assembly comprises: Two groups of first movable guide rails, the two groups of first movable guide rails are arranged in parallel; A plurality of first L-shaped plates are evenly arranged at the bottom of the two groups of the first movable guide rails, and are used to cooperate with the bottom of the first movable guide rails to be clamped on the I-beam of the mounting frame.

9. The live rapid replacement device according to claim 8, characterized in that: The second guide rail assembly comprises: Two groups of I-beam columns, each group of I-beam columns includes a plurality of I-beam columns, and the plurality of I-beam columns in the two groups are correspondingly and parallelly distributed; A plurality of steel tube cross beams, wherein the steel tube cross beams are arranged between two corresponding I-beam columns in two groups; A plurality of oblique reinforcing ribs, wherein the oblique reinforcing ribs are arranged between two adjacent I-beam columns in each group; Two sets of second movable guide rails are respectively arranged on the tops of the two sets of I-beam columns; A plurality of second L-shaped plates are evenly arranged at the bottom of the two groups of the second movable guide rails, and are used to cooperate with the bottom of the second movable guide rails to be clamped on the I-beam column.

10. The live rapid replacement device according to claim 4, characterized in that: The regulating mechanism comprises: Two chutes are provided on two side walls of the support plate in the conveying direction; A plurality of card slots are symmetrically arranged on two side walls of the support plate in the conveying direction, and the plurality of card slots on each side wall of the support plate in the conveying direction are distributed in a linear array and are connected to the bottom end of the corresponding slide slot; Two clamping blocks are respectively arranged at the bottom ends of the two groups of fixing plates, and the clamping blocks are used to be clamped and matched with the clamping slots.

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