Air cooler live replacement equipment

Abstract

The present application relates to the technical field of power equipment, in particular to a kind of air cooler live replacement equipment.The present application uses internal hoisting device to hoist air cooler to horizontal straight rail, then by carrying vehicle, it is transported out workshop, and new air cooler outside is transported to workshop, and is installed on I-beam, the horizontal straight rail can greatly shorten the transport distance of air cooler, thereby shortening the replacement time of air cooler, to realize the purpose of live replacement.

Description

Technical Field

[0001] This invention relates to the field of power equipment technology, specifically to a live-line replacement device for an air cooler. Background Technology

[0002] During operation, the converter valves of a flexible DC converter station generate a large amount of heat. If this heat cannot be dissipated in time, the temperature of the converter valve will rise sharply, causing the converter valve to lock up and lose power. In severe cases, it may even damage the core equipment of the converter valve, resulting in incalculable consequences.

[0003] To quickly absorb the heat generated by the converter valve, a more environmentally friendly water-cooling system is used for heat absorption and cooling. The heat generated by the converter valve is absorbed and carried out of the converter valve body through the circulation of internal cooling water. After heat exchange between the internal and external cooling water, the external cooling water is cooled by an air cooler, thereby achieving heat absorption and cooling of the converter valve.

[0004] Because a large number of converter valves are installed in the flexible DC converter station, a special shed was built within the station to store multiple air coolers in order to more efficiently absorb and cool the valves. Several horizontally arranged, off-the-ground H-beams are installed side-by-side in the shed, with each air cooler mounted on two H-beams and bolted to the upper flange of the H-beams. Over time, air coolers inevitably need to be replaced due to malfunctions. Because each air cooler is quite heavy, a crane inside the shed is typically used to lift it, place it on a transport vehicle, and then transport it out of the shed. A new air cooler is then transported to the shed by the crane, lifted, and installed in its designated position. This replacement process is time-consuming due to the limited space inside the shed and the slow movement of the transport vehicles. The replacement speed is even slower when multiple air coolers need to be replaced simultaneously.

[0005] During actual replacement, after the converter valve loses the heat absorption and cooling function of the air cooler, the temperature rise is small in a short period of time, and it will not cause the converter to lock up. Therefore, in this case, the converter does not need to be shut down, and the converter station operates normally, thus achieving live air cooler replacement. However, because the replacement time using the above method is relatively long, the corresponding converter is shut down to avoid damage. In this case, power loss will occur due to the shutdown of the converter valve, which will affect the stability of the urban power grid. Therefore, it is evident that the current method of replacing air coolers using only transport vehicles and overhead cranes is insufficient to achieve the goal of live air cooler replacement. Summary of the Invention

[0006] To avoid and overcome the technical problems existing in the prior art, the present invention provides an air cooler live-line replacement device. The present invention can effectively improve the replacement efficiency of air coolers, thereby achieving the purpose of live-line replacement.

[0007] To achieve the above objectives, the present invention provides the following technical solution: An air cooler replacement device with live power includes an internal lifting device for vertically lifting and suspending a damaged air cooler on an I-beam, and a horizontal straight track that can be fixedly installed on the I-beam below the air cooler after it is lifted, with the horizontal straight track extending out of the shed along the length of the I-beam; a carrier vehicle for carrying the air cooler and transporting it out of the shed is installed on the horizontal straight track, and an external lifting device for removing the air cooler from the carrier vehicle or loading it onto the carrier vehicle is arranged at the horizontal straight track outside the shed.

[0008] As a further embodiment of the present invention: an installation groove is provided at the position where the horizontal linear track is fixed to the I-beam, and the cross-section of the installation groove is T-shaped to match the cross-section of the I-beam; the upper flange of the I-beam is slidably inserted into the installation groove to fix the horizontal linear track on the I-beam.

[0009] As a further embodiment of the present invention: the horizontal linear track includes two linear guide rails arranged parallel to each other. Multiple sets of two L-shaped limiting rods arranged opposite each other are sequentially installed on the lower side of the linear guide rails along the length direction of the linear guide rails. Two limiting rods in the same set cooperate with the linear guide rails to form a sliding groove with a T-shaped cross section. The sliding grooves are sequentially connected to form the mounting groove.

[0010] As a further embodiment of the present invention: a horizontal straight track located outside the shed is fixedly installed on a support frame. The support frame includes multiple telescopic rods arranged below two straight guide rails along the length of the horizontal straight track, and each telescopic rod is arranged vertically. The telescopic ends of the telescopic rods are equipped with sliders that can be slidably inserted into the mounting grooves to support the straight guide rails.

[0011] As a further aspect of the present invention: adjacent telescopic rods on the same linear guide rail are connected to each other by diagonal rods; two telescopic rods located at the same position on two linear guide rails are connected to each other by crossbars, and the two telescopic rods and the crossbars cooperate to form a gantry-shaped support.

[0012] As a further embodiment of the present invention: the carrier vehicle includes a vehicle body, the bottom of the vehicle body is equipped with rollers that form a rolling engagement with a horizontal straight track, and a servo motor for driving the rollers to rotate is installed on the vehicle body; a limiting groove is formed on the vehicle body for accommodating the bottom of the air cooler so as to place the air cooler on the vehicle body.

[0013] As a further aspect of the present invention: multiple sets of U-shaped locking blocks are arranged sequentially along the length of the vehicle body on the upper surface of the vehicle body. The opening of the U-shaped groove on the locking block is vertically upward, and the length direction of the U-shaped groove is parallel to the length direction of the vehicle body. The U-shaped grooves on each locking block cooperate with each other to form the limiting groove.

[0014] As a further embodiment of the present invention: the linear guide rail is composed of multiple short rails connected in sequence; a connecting block is installed at the front end of the short rail, and a U-shaped positioning groove is opened at the rear end of the short rail for the connecting block to be inserted. The positioning groove is arranged vertically along its length; and pin holes are opened through the groove wall of the positioning groove and the connecting block. The positioning pin is inserted into the pin hole to fix adjacent short rails together.

[0015] As a further embodiment of the present invention: the pin hole is a square hole, and the positioning pin is a cuboid shape that mates with the pin hole.

[0016] As a further aspect of the present invention: a locking part is installed at the connection of adjacent short rails; the locking part includes a support block, on which a fixing groove with openings at both ends is formed, and the length direction of the fixing groove is parallel to the width direction of the upper flange of the I-beam, with the groove opening vertically downward; two stepped countersunk holes are formed at the bottom of the fixing groove, and the diameter of the countersunk holes gradually narrows downward along the vertical direction; a guide shaft is coaxially inserted in the countersunk hole, and the shoulder of the guide shaft abuts against the shoulder of the countersunk hole to prevent the guide shaft from slipping out of the countersunk hole; the bottom of the countersunk hole and the top of the guide shaft are... A return spring is compressed between the sections; a truncated cone, smaller at the bottom and larger at the bottom, is coaxially fixed to the bottom of the guide shaft, and the truncated cone is located in the cavity of the fixed groove; a U-shaped hinge rod is hinged to one side of the upper wing plate in the fixed groove on both sides of the truncated cone, the driving end of the hinge rod forms a sliding fit with the outer circular surface of the truncated cone, and the swing end of the hinge rod is located below the upper wing plate; a guide wheel that can roll along the surface of the upper wing plate is hinged to the lower end face of the truncated cone; a positioning block that can be inserted into the positioning groove and fixed to the short rail by cooperating with the hole of the positioning pin is installed on the top of the support block.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention uses an internal lifting device to hoist the air cooler onto a horizontal straight track, and then a carrier vehicle transports it out of the shed. The new external air cooler is then transported into the shed and installed on the I-beam. The horizontal straight track can greatly shorten the transportation distance of the air cooler, thereby shortening the replacement time of the air cooler and achieving the purpose of live replacement.

[0018] 2. When the locking part and short rails are installed one by one on the upper flange, the lower surface of the main body of the already installed short rails does not contact the upper flange during movement under the action of the locking part, and the guide wheel can effectively improve the smoothness of the short rail installation. After the corresponding short rails are installed on the upper flange, when the air cooler is placed on the horizontal linear guide rail, all the return springs are compressed under the action of the weight of the air cooler. At this time, the guide wheel retracts into the fixing groove, and the lower surface of the support block and the lower surface of the short rail body are in contact with the upper surface of the upper flange. At the same time, under the action of the frustum, the hinge rod causes its swing end to tilt upward and press against the lower plate surface of the upper flange, thereby clamping and fixing the horizontal linear guide rail to the upper flange. When the air cooler is lifted, the lower surface of the support block and the lower surface of the short rail body separate from the upper surface of the upper wing plate under the action of the return spring. The swing end of the hinge rod rebounds to separate from the lower surface of the upper wing plate. At this time, the distance between the limit rod and the lower surface of the upper wing plate becomes smaller but does not contact each other, so that the locking part and the short rail can be removed smoothly.

[0019] 3. Annular grooves are formed on the surface of the rollers. When the rollers roll, the short rails are embedded in the annular grooves, thereby improving the stability of the carrier vehicle moving on the horizontal straight track. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the equipment replacement structure in this invention.

[0021] Figure 2 This is a schematic diagram of the internal structure of the replacement equipment in this invention.

[0022] Figure 3 This is a schematic diagram of the air cooler and the carrier vehicle in this invention.

[0023] Figure 4 This is a schematic diagram of the horizontal straight track in this invention.

[0024] Figure 5 This is a schematic diagram of the support frame in this invention.

[0025] Figure 6 This is a schematic diagram of the linear guide rail in this invention.

[0026] Figure 7 This is a schematic diagram of the internal structure of the locking part in this invention.

[0027] In the diagram: 1. Work shed; 11. Internal lifting device; 12. Base frame; 121. Column; 13. I-beam; 131. Upper wing plate; 132. Lower wing plate; 14. Air cooler; 141. Hanging lug; 142. Folded edge; 15. Roller shutter door; 2. Horizontal linear track; 21. Linear guide rail; 211. Short rail; 2111. Limiting rod; 2112. Slide groove; 2113. Connecting block; 2114. Positioning groove; 2115. Pin hole; 22. 23. Positioning pin; 3. Mounting slot; 3. Locking part; 31. Support block; 311. Fixing slot; 312. Countersunk hole; 313. Guide shaft; 314. Return spring; 315. Frustum; 3151. Guide wheel; 316. Hinge rod; 317. Positioning block; 4. Support frame; 41. Telescopic rod; 411. Caster wheel; 412. Slider; 42. Diagonal bar; 43. Crossbar; 5. Carrier; 51. Car body; 52. Locking block; 53. Roller. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] like Figure 1 - Figure 7 This invention includes a shed 1 constructed of reinforced concrete, inside which multiple air coolers 14 are installed. A base frame 12 is installed inside the shed 1. The base frame 12 consists of multiple vertically supported columns 121 arranged on the ground, and adjacent columns 121 are fixed to each other by crossbeams. Both the columns 121 and the crossbeams are made of steel, and therefore can be welded together. Multiple I-beams 13 are installed on the base frame 12, which is formed by the columns 121 and crossbeams. The I-beams 13 are arranged parallel to each other, and are welded to the top of the base frame 12 by lower flanges 132. The I-beams 13 are arranged horizontally, and the spacing between adjacent I-beams 13 is determined according to the size of the air cooler 14, to ensure stable support for the air cooler 14. An air cooler 14 is equipped with two I-beams 13. The bottom of the air cooler 14 has an outward-facing flange 142 with through holes. The outer side of the upper wing plate 131 also has through holes. Therefore, it can be fixedly installed on the corresponding upper wing plate 131 by the use of bolts and nuts.

[0030] A certain gap is left between adjacent air coolers 14 to facilitate the disassembly, assembly and positioning of the air coolers 14 by the staff.

[0031] Inside the shed 1, an overhead crane is installed as an internal lifting device 11. This crane can lift air coolers 14 weighing several tons for installation and dismantling. When using the overhead crane, the controller first moves the crane to above the air cooler 14 to be lifted. Then, the hook is attached to the lugs 141 on the top of the air cooler 14. Finally, the controller starts the crane to lift the air cooler 14 and move it to the corresponding position. Currently, the internal lifting device 11 can also use a mobile crane, which can be driven outside the shed 1. The roof of the shed 1, used in conjunction with the crane, is also designed with roller shutter doors. Each air cooler 14 has an independent roller shutter door directly above it. When a crane is needed for lifting, the corresponding roller shutter door is opened to complete the lifting operation.

[0032] The specific hoisting process is as follows: When using the crane, first drive the crane to the outside of the shed 1, and then open the roller shutter door on the corresponding air cooler 14 through electrical control; then drive the crane boom to move to directly above the air cooler 14, lower the rope hook of the boom, and make the hook engage with the lug 141 on the air cooler 14 to lift the air cooler 14, and then carry out the subsequent replacement operation.

[0033] To facilitate the use of this invention, one wall of the shed 1 was modified into a roller shutter door 15 structure. Since the length direction of each air cooler 14 is parallel to the width direction of the shed 1, a roller shutter door 15 is installed on the wall adjacent to each air cooler 14. When replacement is needed, the corresponding roller shutter door 15 is opened, and the corresponding horizontal linear track 2 is installed on the corresponding I-beam 13 through the opened roller shutter door 15, allowing subsequent movement to proceed. Conversely, when replacement is not required, the roller shutter door 15 remains normally closed.

[0034] The horizontal linear track 2 includes two parallel linear guide rails 21, each composed of multiple short rails 211 connected sequentially. Each short rail 211 has the same main structure but varying lengths, requiring selection of different lengths based on actual conditions. The short rails 211 mounted on the I-beam 13 are shorter, while those located outside the shed 1 are longer.

[0035] The main body of the short rail 211 is a hollow rectangular steel, strong enough to support the transport of the air cooler 14. A rectangular connecting block 2113 is installed at the upper middle of the front end of the main body, and two rectangular limiting blocks are installed at the upper middle of the rear end of the main body. The two limiting blocks cooperate to form a U-shaped positioning groove 2114 into which the connecting block 2113 can be inserted. The positioning groove 2114 is arranged vertically along its length. Pin holes 2115 are opened through the groove wall of the positioning groove 2114 and the connecting block 2113. The positioning pin 22 is inserted into the pin hole 2115 to fix adjacent short rails 211 together. On the lower side of the main body, multiple sets of two L-shaped limiting rods 2111 arranged opposite each other are installed sequentially along the length of the main body. Two limiting rods 2111 in the same set cooperate with the linear guide rail 21 to form a sliding groove 2112 with a cross-section of T. The sliding grooves 2112 are connected sequentially to form the mounting groove 23. To prevent the mounting groove 23 from jamming with the upper flange 131 when the short rail 211 slides along the upper flange 131, the width of the mounting groove 23 is the same as the width of the upper flange 131, and the depth of the mounting groove 23 is slightly greater than the thickness of the upper flange 131. This design is because, during manufacturing, the upper surface and sides of the upper flange 131 of the I-beam 13 are relatively smooth, making jamming less likely. Furthermore, the inner surface gradually thickens from the outside in and is not smooth, thus leaving a certain gap to prevent jamming.

[0036] Because of the slight gaps, these gaps may negatively affect the stability of the track during the transportation of the air cooler 14. Therefore, the present invention uses a locking part 3 to solve this problem. The locking part 3 includes a cuboid-shaped support block 31. When two adjacent short rails 211 are engaged, a cuboid-shaped notch is reserved below the connecting block 2113 and the limiting block, which is exactly the same shape as the support block 31. At the same time, two positioning blocks 317 are fixedly installed above the support block 31. At this time, the two positioning blocks 317 are inserted between the two limiting blocks, the connecting block 2113 is inserted between the two positioning blocks 317, and then the support block 31 is stably installed in the notch under the action of the cuboid-shaped positioning pin 22.

[0037] A fixing groove 311 with openings at both ends is provided on the support block 31. The length direction of the fixing groove 311 is parallel to the width direction of the upper flange 131 of the I-beam 13, and the opening of the fixing groove 311 faces vertically downward. Two stepped countersunk holes 312 are provided at the bottom of the fixing groove 311, and the diameter of the countersunk holes 312 gradually narrows downward along the vertical direction. A guide shaft 313 is coaxially inserted into the countersunk hole 312. The shoulder of the guide shaft 313 abuts against the shoulder of the countersunk hole 312 to prevent the guide shaft 313 from slipping out of the countersunk hole 312. A return spring 314 is compressed between the bottom of the countersunk hole 312 and the top of the guide shaft 313. A frustum 315, which is smaller at the bottom and larger at the top, is coaxially fixed to the bottom of the guide shaft 313, and the frustum 315 is located in the groove cavity of the fixing groove 311. U-shaped hinge rods 316 are hinged in the fixing grooves 311 on both sides of the frustum 315 and are engaged with one side of the upper wing plate 131. The driving end of the hinge rod 316 forms a sliding fit with the outer circular surface of the frustum 315, and the swing end of the hinge rod 316 is located below the upper wing plate 131. A guide wheel 3151 that can roll along the surface of the upper wing plate 131 is hinged on the lower end surface of the frustum 315.

[0038] When installing the short rail 211 onto the upper wing plate 131, firstly, a locking part 3 is slidably sleeved onto the upper wing plate 131. At this time, both sides of the upper wing plate 131 are located in the U-shaped grooves of the two hinge rods 316 respectively. Simultaneously, under the action of the return spring 314, a portion of the guide wheel 3151 is pushed out of the fixing groove 311 and rolls with the upper surface of the upper wing plate 131, thereby separating the support block 31 from the upper surface of the upper wing plate 131 to prevent sliding friction during sliding. At the same time, under the action of the torsion spring seat, the driving end of the hinge rod 316 is pressed against the frustum 315, causing its swing end to tend to move away from the lower surface of the upper wing plate 131. At this time, the swing end is separated from the lower surface of the upper wing plate 131 with a small gap. Next, a short rail 211 is slidably sleeved onto the upper wing plate 131, and the support block 31 is connected to the short rail 211 using the positioning pin 22. Then, the other locking part 3 and the short rail 211 are slidably fitted onto the upper wing plate 131 in sequence, and the two short rails 211 and the middle locking part 3 are fixed together using the positioning pin 22.

[0039] When the locking part 3 and the short rail 211 are installed one by one on the upper wing plate 131, the lower surface of the main body of the already installed short rail 211 does not contact the upper wing plate 131 during movement under the action of the locking part 3, and the smoothness of the installation of the short rail 211 can be effectively improved under the action of the guide wheel 3151. After the corresponding short rail 211 is installed on the upper wing plate 131, when the air cooler 14 is placed on the horizontal linear guide rail 21, all the return springs 314 are compressed under the action of the gravity of the air cooler 14. At this time, the guide wheel 3151 retracts into the fixing groove 311, and the lower surface of the support block 31 and the lower surface of the main body of the short rail 211 are in contact with each other with the upper surface of the upper wing plate 131. At the same time, under the action of the frustum 315, the hinge rod 316 causes its swing end to tilt upward and press against the lower plate surface of the upper wing plate 131, thereby clamping and fixing the horizontal linear guide rail 21 on the upper wing plate 131. When the air cooler 14 is lifted, under the action of the return spring 314, the lower surface of the support block 31 and the lower surface of the main body of the short rail 211 are separated from the upper surface of the upper wing plate 131. The swing end of the hinge rod 316 rebounds to separate from the lower surface of the upper wing plate 131. At this time, the distance between the limiting rod 2111 and the lower surface of the upper wing plate 131 becomes smaller but does not contact, so as to facilitate the smooth removal of the locking part 3 and the short rail 211.

[0040] A horizontal straight track 2 located outside the shed 1 is fixedly installed on a support frame 4. The support frame 4 includes multiple telescopic rods 41 arranged below two straight guide rails 21 along the length of the horizontal straight track 2, and each telescopic rod 41 is arranged vertically. The telescopic ends of the telescopic rods 41 are equipped with sliders 412 that can be slidably inserted into the mounting grooves 23 to support the horizontal guide rails. Adjacent telescopic rods 41 on the same horizontal guide rail are connected to each other by diagonal rods 42. Two telescopic rods 41 located at the same position on the two horizontal guide rails are connected to each other by crossbars 43, and the two telescopic rods 41 and the crossbars 43 cooperate to form a gantry-shaped support.

[0041] Each telescopic rod 41 in the support frame 4 is fixedly equipped with a caster wheel 411 at its bottom to facilitate the movement of the support frame 4. The short rail 211 on the support frame 4 is relatively long. When installing the short rail 211 on the support frame 4, each slider 412 is sequentially fitted into the mounting groove 23. Then, a threaded hole can be made in the slider 412, and the slider 412 is fixed to the short rail 211 by the abutment action of the bolt front end against the mounting groove 23. In this way, the short rail 211 can be fixed together with the support frame 4. Then, the height of the short rail 211 can be adjusted by the telescopic cylinder, which acts as the telescopic rod 41, so that it aligns with the short rail 211 and locking part 3 on the I-beam 13, and its end overlaps the I-beam 13, improving the stability of the connection of the short rail 211.

[0042] The carrier vehicle 5 includes a body 51. Rollers 53, which roll in conjunction with the horizontal linear track 2, are mounted on the bottom of the body 51. A servo motor is mounted on the body 51 to drive the rollers 53. Annular grooves are formed on the surface of the rollers 53. When the rollers 53 roll, the short rail 211 is embedded in the annular grooves, thereby improving the stability of the carrier vehicle 5's movement on the horizontal linear track 2. Multiple sets of U-shaped locking blocks 52 are arranged sequentially along the length of the body 51 on the upper surface of the body 51. The openings of the U-shaped grooves on the locking blocks 52 are vertically upward, and the length of the U-shaped grooves is parallel to the length of the body 51. The U-shaped grooves on each locking block 52 cooperate to form the limiting grooves. The limiting grooves improve the stability of the air cooler 14 during transport.

[0043] When using this invention, if a problem is found with an air cooler 14 and it needs to be replaced, firstly, open the corresponding roller shutter door 15 and remove the connecting bolts between the air cooler 14 and the I-beam 13; simultaneously, use an overhead crane to lift the air cooler 14 that needs to be replaced, and install the locking part 3 and the short rail 211 located on the upper wing plate 131 onto the I-beam 13 in sequence; then, push the support frame 4 to the I-beam 13, and align the short rail 211 on the support frame 4 with the short rail 211 on the I-beam 13 to form a horizontal straight track 2. Then, drive the carrier 5, which was originally mounted on the support frame 4, to move it below the lifted air cooler 14, and then use the overhead crane to place the air cooler 14 into the limiting groove of the locking block 52. Finally, drive the carrier 5 to transport the air cooler 14 out of the shed 1 and onto the support frame 4. The air cooler 14 is then unloaded from the carrier 5 using a crane, which acts as an external lifting device. A new air cooler 14, already prepared nearby, is then hoisted onto the carrier 5. Next, the new air cooler 14 is transported to the work shed 1 via the carrier 5, and then lifted using an overhead crane. The horizontal linear guide rail 21 and the carrier 5 are then removed, and the new air cooler 14 is lowered. Finally, the corresponding bolts are installed, completing the replacement of the air cooler 14. Compared to replacing it in the work shed 1, the replacement method of this invention is faster and more convenient, and allows for live replacement.

[0044] When multiple air coolers 14 are damaged, multiple overhead cranes can be installed in the work shed 1 as needed, and then the air coolers 14 can be replaced using the method described above. If a large number of air coolers 14 need to be replaced, they can be replaced sequentially to complete the replacement process.

[0045] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A live-line replacement device for an air cooler, characterized in that, Includes an internal lifting device (11) for vertically lifting and suspending the damaged air cooler (14) on the I-beam (13), and a horizontal straight track (2) that can be fixedly installed on the I-beam (13) below the air cooler (14) after it is lifted, and the horizontal straight track (2) extends out of the shed (1) along the length of the I-beam (13); a carrier vehicle (5) for carrying the air cooler (14) and transporting it out of the shed (1) is installed on the horizontal straight track (2), and an external lifting device for removing the air cooler (14) from the carrier vehicle (5) or loading it onto the carrier vehicle (5) is arranged at the horizontal straight track (2) outside the shed (1); The horizontal straight track (2) includes two parallel straight guide rails (21), which are composed of multiple short rails (211) connected in sequence. A locking part (3) is installed at the connection of adjacent short rails (211); the locking part (3) includes a support block (31), a fixing groove (311) with openings at both ends is provided on the support block (31), and the length direction of the fixing groove (311) is parallel to the width direction of the upper flange (131) of the I-beam (13), and the opening of the fixing groove (311) is vertically downward; two stepped countersunk holes (312) are provided at the bottom of the fixing groove (311), and the diameter of the countersunk hole (312) gradually shrinks downward along the vertical direction; a guide shaft (313) is coaxially inserted in the countersunk hole (312), and the shoulder of the guide shaft (313) and the shoulder of the countersunk hole (312) can abut against each other to prevent the guide shaft (313) from sliding out of the countersunk hole (312). A return spring (314) is compressed between the bottom of the countersunk hole (312) and the top of the guide shaft (313); a frustum (315) with a smaller bottom and larger top along the vertical direction is coaxially fixed to the bottom of the guide shaft (313), and the frustum (315) is located in the cavity of the fixed groove (311); a U-shaped hinge rod (316) is hinged in the fixed groove (311) on both sides of the frustum (315) and is locked to one side of the upper wing plate (131). The driving end of the hinge rod (316) forms a sliding fit with the outer circular surface of the frustum (315), and the swing end of the hinge rod (316) is located below the upper wing plate (131); a guide wheel (3151) that can roll along the surface of the upper wing plate (131) is hinged to the lower end face of the frustum (315).

2. The air cooler live-line replacement equipment according to claim 1, characterized in that, A mounting groove (23) is provided at the position where the horizontal straight track (2) is fixed to the I-beam (13). The cross-section of the mounting groove (23) is T-shaped and matches the cross-section of the I-beam (13). The upper flange (131) of the I-beam (13) is slidably inserted into the mounting groove (23) to fix the horizontal straight track (2) on the I-beam (13).

3. The air cooler live-line replacement equipment according to claim 2, characterized in that, Multiple sets of two L-shaped limiting rods (2111) arranged opposite to each other are installed on the lower side of the linear guide (21) along the length of the linear guide (21). The two limiting rods (2111) in the same set cooperate with the linear guide (21) to form a T-shaped slide groove (2112). The slide grooves (2112) are connected in sequence to form the mounting groove (23).

4. The air cooler live-line replacement equipment according to claim 3, characterized in that, The horizontal straight track (2) located outside the shed (1) is fixedly installed on the support frame (4). The support frame (4) includes multiple telescopic rods (41) arranged below the two straight guide rails (21) along the length of the horizontal straight track (2), and each telescopic rod (41) is arranged vertically. The telescopic end of the telescopic rod (41) is equipped with a slider (412) that can be slidably inserted into the mounting groove (23) to support the straight guide rail (21).

5. The air cooler live-line replacement equipment according to claim 4, characterized in that, The telescopic rods (41) adjacent to each other on the same linear guide rail (21) are connected to each other by diagonal rods (42); the two telescopic rods (41) located at the same position on the two linear guide rails (21) are connected to each other by crossbars (43), and the two telescopic rods (41) and crossbars (43) cooperate to form a gantry-shaped support.

6. The air cooler live-line replacement equipment according to claim 5, characterized in that, The carrier (5) includes a body (51), the bottom of the body (51) is equipped with a roller (53) that forms a rolling engagement with the horizontal straight track (2), and a servo motor for driving the roller (53) to rotate is installed on the body (51); a limiting groove is formed on the body (51) for accommodating the bottom of the air cooler (14) so ​​that the air cooler (14) can be placed on the body (51).

7. The air cooler live-line replacement equipment according to claim 6, characterized in that, Multiple sets of U-shaped locking blocks (52) are arranged sequentially along the length of the vehicle body (51) on the upper surface of the vehicle body (51). The U-shaped grooves on the locking blocks (52) are vertically upward, and the length of the U-shaped grooves is parallel to the length of the vehicle body (51). The U-shaped grooves on each locking block (52) cooperate with each other to form the limiting groove.

8. The air cooler live-line replacement equipment according to claim 7, characterized in that, A connecting block (2113) is installed at the front end of the short rail (211), and a U-shaped positioning groove (2114) is opened at the rear end of the short rail (211) for the connecting block (2113) to be inserted. The positioning groove (2114) is arranged vertically along its length. A pin hole (2115) is opened through the groove wall of the positioning groove (2114) and the connecting block (2113). A positioning pin (22) is inserted into the pin hole (2115) to fix the adjacent short rails (211) together. A positioning block (317) is installed on the top of the support block (31) and can be inserted into the positioning groove (2114) and fixed on the short rail (211) by cooperating with the hole shaft of the positioning pin (22).

9. The air cooler live-line replacement equipment according to claim 8, characterized in that, The pin hole (2115) is a square hole, and the positioning pin (22) is a cuboid shape that fits with the pin hole (2115).

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