Transformer cooling fan lifting device and using method thereof

Abstract

The invention relates to a transformer cooling fan lifting device and a using method thereof. The transformer cooling fan lifting device is used for lifting a fan motor to a fan air guide opening. The transformer cooling fan lifting device comprises a mounting frame, a fixing mechanism and a crane mechanism, the mounting frame comprises a first guide rail, a second guide rail and a guide mechanism, the first guide rail, the second guide rail and the guide mechanism are arranged in a frame body enclosing mode and arranged on the peripheral wall of a fan air guide opening in a sleeving mode, and the first guide rail and the second guide rail are arranged in parallel; the two ends of the guide mechanism are slidably connected with the first guide rail and the second guide rail correspondingly. The guide mechanism moves in the length direction of the first guide rail and the second guide rail. The fixing mechanism comprises a plurality of limiting blocks, the limiting blocks are arranged along the mounting frame, and the relative positions of the limiting blocks are adjustable so as to abut against and be fixed to the outer peripheral wall of the air guide opening of the fan; and the crane mechanism is connected with the mounting frame and is used for hoisting the fan motor. Stable constraint can be provided; the fan motor is hoisted through the crane mechanism, manual operation is not needed, manpower is saved, and safety and working efficiency are improved.

Description

Technical Field

[0001] The present application relates to the technical field of lifting and transportation, and in particular to a lifting device for a transformer cooling fan and a method for using the same. Background Art

[0002] Transformer cooling fans are widely used in substation cooling systems. During the peak summer period, due to the influence of ambient temperature and main transformer load, the fan needs to operate at a higher power, which significantly increases the failure rate of the cooling fan motor. To ensure the smooth operation of the transformer, the fan motor needs to be replaced quickly.

[0003] Since cooling fans are usually installed at higher positions and the fan motors are large in size and weight, in the related technology, maintenance personnel need to climb to the air outlet of the faulty fan by setting up ladders on both sides of the fan air outlet, and set pulleys and other devices at the air outlet to pull the fan motor to be replaced from the ground to the fan air outlet for installation and replacement; since the fan motor of a cooling fan is generally heavy, high requirements are placed on the installation stability of pulleys and other devices, and the installation is more troublesome. In addition, this manual lifting of the motor consumes a lot of physical strength of the maintenance personnel, which can easily cause personal injury when replacing multiple faulty fans. The operation process is very time-consuming and the efficiency of replacement and maintenance is low. In addition, if the space at the fan installation location is relatively small, it is not conducive to maintenance personnel to lift the fan motor on both sides of the fan air outlet. Summary of the invention

[0004] Based on this, it is necessary to provide a transformer cooling fan lifting device and its use method to address the problem that the motor of the above-mentioned fan is difficult to repair and replace. The device can provide higher stability and easy operation, and does not require manual operation to lift the fan motor, saving time and effort.

[0005] On the one hand, the present application provides a transformer cooling fan lifting device, which is used to lift a fan motor to an air guide port of the fan, and the transformer cooling fan lifting device includes:

[0006] The installation frame comprises a first guide rail, a second guide rail and a guide mechanism, wherein the first guide rail, the second guide rail and the guide mechanism are arranged to be enclosed in a frame body so that the installation frame can be sleeved on the outer peripheral wall of the air guide port of the fan, wherein the first guide rail is arranged in parallel with the second guide rail, the two ends of the guide mechanism are respectively slidably connected with the first guide rail and the second guide rail, and the guide mechanism can move along the length direction of the first guide rail and the second guide rail;

[0007] A fixing mechanism, comprising a plurality of limit blocks, which are arranged along the mounting frame and whose relative positions are adjustable to each other so as to abut against and be fixed to the outer peripheral wall of the air guide port of the fan;

[0008] A hoist mechanism is connected to the installation frame, and the hoist mechanism is used to hoist the fan motor and can lift the fan motor to be opposite to the fan air guide port.

[0009] In one embodiment, the guiding mechanism includes two connecting rods, both ends of which are slidably connected to the first guide rail and the second guide rail respectively, and the first guide rail, the second guide rail and the two connecting rods together form the installation frame; the fixing mechanism is connected to the connecting rods; and the crane mechanism is connected to the first guide rail.

[0010] Furthermore, a plurality of limiting holes are provided at both ends of the first guide rail and the second guide rail, and the limiting holes are respectively arranged at intervals along the length direction of the first guide rail and the second guide rail;

[0011] The end of the guide mechanism is provided with a clamping assembly corresponding to the limiting hole, and the clamping assembly cooperates with the limiting hole to limit the position.

[0012] Furthermore, the clamping assembly includes a latch and a clamping hole corresponding to the limiting hole, the clamping hole is opened on the guide mechanism, and the latch is inserted into the limiting hole and the clamping hole.

[0013] In one embodiment, one part of the limit blocks of the fixing mechanism is a fixed limit block, and the other part of the limit blocks is a sliding limit block, the fixed limit blocks are fixedly connected to the two connecting rods respectively; the sliding limit blocks are slidably connected to the two connecting rods respectively, and move along the length direction of the connecting rods.

[0014] In one embodiment, the guiding mechanism further includes a first connecting member and a second connecting member, and the first connecting member and the second connecting member are respectively arranged at both ends of the connecting rod; the first connecting member is provided with a first through hole corresponding to the first guide rail, and the first guide rail is inserted into the first through hole; the second connecting member is provided with a second through hole corresponding to the second guide rail, and the second guide rail is inserted into the second through hole.

[0015] Furthermore, the transformer cooling fan lifting device further comprises a third guide rail and a cross bar, wherein the third guide rail is arranged in parallel with the first guide rail, and when the guide mechanism is arranged vertically, the third guide rail and the first guide rail are both arranged horizontally and connected through the cross bar; the hoist mechanism is arranged between the first guide rail and the third guide rail, and is respectively connected to the first guide rail and the third guide rail;

[0016] The first connecting member is further provided with a third through hole corresponding to the third guide rail, and the third guide rail is inserted into the third through hole.

[0017] Furthermore, the first connecting member includes a suspension bracket, which is arranged at the end of the connecting rod; the suspension bracket includes a connecting section and a supporting section, one end of the connecting section is connected to the end of the connecting rod, and the first through hole and the third through hole are respectively located at two end positions of the connecting section; the supporting section is inclined relative to the connecting section, one end of the supporting section is connected to the other end of the connecting section, and the other end of the supporting section is connected to the side wall of the connecting rod.

[0018] In one embodiment, the hoist mechanism includes a sliding assembly, a traction assembly, a rotating assembly and a clamping assembly. The sliding assembly is slidably connected to the first guide rail or guide mechanism so that the hoist mechanism moves along the length direction of the first guide rail or guide mechanism; the traction assembly is connected to the clamping assembly through the rotating assembly, and the traction assembly is used to drive the rotating assembly and the clamping assembly to rise and fall; the rotating assembly is used to drive the clamping assembly to rotate relative to the traction assembly; and the clamping assembly is used to lift the fan motor.

[0019] On the other hand, the present application provides a method for hoisting a fan motor based on the above-mentioned transformer cooling fan hoisting device, comprising the following steps:

[0020] The installation frame is sleeved on the outer periphery of the air guide port of the fan;

[0021] Pushing the guide mechanism to move along the first guide rail and the second guide rail, and adjusting the relative position of the limit block on the mounting frame so that the limit block abuts against the outer peripheral wall of the fan air guide port to fix the transformer cooling fan lifting device;

[0022] The parts of the fan motor are hoisted by the hoist mechanism, and the hoist mechanism is used to hoist the fan motor to a position for assembly with the fan air guide port.

[0023] The transformer cooling fan lifting device and the use method thereof are provided with a first guide rail, a guide mechanism and a second guide rail connected in sequence, and the position of the guide mechanism on the first guide rail and the second guide rail is adjusted according to the size of the fan air duct, so that the first guide rail, the guide mechanism and the second guide rail are relatively close around the fan air duct, ensuring that the structure formed by the first guide rail, the guide mechanism and the second guide rail is not easy to fall from the fan air duct; then the position of the fixing mechanism on the first guide rail, the guide mechanism and the second guide rail is adjusted, and the plurality of fixing mechanisms are all abutted against the outer peripheral wall of the fan air duct, and the fixing mechanism is fixed. The mechanism provides constraints in all directions for the transformer cooling fan lifting device, so that the transformer cooling fan lifting device is fixed at the fan air duct; after the transformer cooling fan lifting device is fixed, the fan motor or other components on the ground can be lifted by the lifting mechanism to the fan air duct for disassembly and assembly, or the disassembled components can be lifted to the ground; the fixing mechanism can improve the stable constraints, ensure the stable operation of the transformer cooling fan lifting device, and easy installation; the fan motor is lifted by the lifting mechanism without manual operation, which can save manpower, improve safety, and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG1 is a structural intuitive diagram of a transformer cooling fan lifting device according to an embodiment of a transformer cooling fan lifting device and a method for using the same in the present application.

[0025] Figure 2 This is a structural top view of a transformer cooling fan lifting device according to an embodiment of a transformer cooling fan lifting device and a method of using the same in the present application.

[0026] FIG3 is a structural front view of a transformer cooling fan lifting device according to an embodiment of a transformer cooling fan lifting device and a method for using the same in the present application.

[0027] Figure 4 This is a structural side view of a transformer cooling fan lifting device according to an embodiment of a transformer cooling fan lifting device and a method of using the same in the present application.

[0028] Figure 5 This is a schematic diagram of the installation of a transformer cooling fan lifting device at the fan air duct of an embodiment of a transformer cooling fan lifting device and a method of using the same in the present application.

[0029] In the figure, 100, mounting frame; 110, first guide rail; 111, limiting hole; 120, second guide rail; 130, guiding mechanism; 131, connecting rod; 132, snap-in assembly; 1321, latch; 1322, snap-in hole; 133, first connecting member; 1331, first through hole; 1332, third through hole; 134, second connecting member; 1341, second through hole; 135, suspension bracket; 1351, connecting section; 1352, supporting section; 140, third guide rail; 150, cross bar; 200, fixing mechanism; 210, limiting block; 211, fixed limiting block; 212, sliding limiting block; 300, crane mechanism; 310, sliding assembly; 320, traction assembly; 330, rotating assembly; 340, clamping assembly; 400, fan air guide port. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0031] In the description of the present application, it should be understood that if the terms "up", "down", "left", "right", "horizontal", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0032] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0034] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0035] Refer to Figure 1, which shows a schematic diagram of the structure of a transformer cooling fan lifting device in an embodiment of the present application. An embodiment of the present application provides a transformer cooling fan lifting device, which is used to lift a fan motor to a fan air duct 400. The transformer cooling fan lifting device includes a mounting frame 100, a fixing mechanism 200 and a lifting mechanism 300.

[0036] The installation frame 100 includes a first guide rail 110, a second guide rail 120 and a guide mechanism 130. The first guide rail 110, the second guide rail 120 and the guide mechanism 130 are arranged in a frame body so that the installation frame 100 can be sleeved on the outer peripheral wall of the fan air duct 400, wherein the first guide rail 110 and the second guide rail 120 are arranged in parallel, and the two ends of the guide mechanism 130 are respectively slidably connected with the first guide rail 110 and the second guide rail 120, and the guide mechanism 130 can move along the length direction of the first guide rail 110 and the second guide rail 120. The fixing mechanism 200 includes a plurality of limit blocks 210, and the plurality of limit blocks 210 are arranged along the installation frame 100, and the relative positions between them are adjustable so as to be used to resist and be fixed on the outer peripheral wall of the fan air duct 400. The hoisting mechanism 300 is connected to the installation frame 100, and the hoisting mechanism 300 is used to hoist the fan motor and can hoist the fan motor to be opposite to the fan air duct 400.

[0037] It should be noted that the fan air duct 400 is usually a cylindrical protruding structure, and the installation frame 100 formed by the first guide rail 110, the second guide rail 120 and the guide mechanism 130 is a rectangular frame structure, and can also be a hexagonal, octagonal, etc. shape, just need to ensure that the installation frame 100 can be set at the fan air duct 400. The guide mechanism 130 can slide along the length direction of the first guide rail 110 and the second guide rail 120. By adjusting the position of the guide mechanism 130 on the first guide rail 110 and the second guide rail 120, the frame size of the installation frame 100 can be changed, so that the size of the installation frame 100 is similar to the size of the outer peripheral wall of the fan air duct 400, and the installation frame 100 is not easy to fall when it is set on the outer peripheral wall of the fan air duct 400.

[0038] A plurality of limit blocks 210 are respectively arranged on the installation frame 100, and can be slidably connected to the first guide rail 110 or the second guide rail 120 or the guide mechanism 130. By pushing the limit blocks 210, the distance between the limit blocks 210 is changed, so that the limit blocks 210 can be adjusted according to the size of the fan air duct 400, and finally abut against the outer peripheral wall of the fan air duct 400. The installation of the installation frame 100 on the outer peripheral wall of the fan air duct 400 is more stable through the limit blocks 210. The hoist mechanism 300 is installed on the first guide rail 110 or the guide mechanism 130 located above the fan air duct 400, so as to facilitate the hoisting of the fan motor on the ground to the fan air duct 400 position for maintenance personnel to perform related operations.

[0039] When the transformer cooling fan lifting device is used, the installation frame 100 is sleeved on the outer periphery of the fan air duct 400, and the guide mechanism 130 is pushed to reduce the frame area of ​​the installation frame 100, so that the installation frame 100 and the fan air duct 400 are relatively close, ensuring that the limit block 210 can abut against the fan air duct 400 by adjusting the position; then the limit block 210 is pushed so that the limit block 210 abuts against the outer peripheral wall of the fan air duct 400, and multiple limit blocks 210 surround and abut against the outer periphery of the fan air duct 400, providing constraints in all directions for the installation frame 100, so that the transformer cooling fan lifting device can be fixed at the fan air duct 400 position. After the fixing is completed, the fan motor and other parts on the ground are lifted to the fan air duct 400 position or the replaced parts are lifted to the ground through the lifting mechanism 300, which is convenient for maintenance personnel to perform related operations. The lifting process does not require manual operation, which saves time and effort, and improves the safety of the lifting process.

[0040] Preferably, the guide mechanism 130 includes two connecting rods 131, and the two ends of the connecting rods 131 are respectively slidably connected to the first guide rail 110 and the second guide rail 120, and the first guide rail 110, the second guide rail 120 and the two connecting rods 131 enclose a mounting frame 100; the fixing mechanism 200 is connected to the connecting rod 131; and the crane mechanism 300 is connected to the first guide rail 110.

[0041] In one embodiment, when the installation frame 100 is installed, the two connecting rods 131 are respectively located on opposite sides of the fan air duct 400, so that the installation frame 100 is enclosed in the outer periphery of the fan air duct 400; the plurality of limit blocks 210 of the fixing mechanism 200 are respectively slidably connected to the two connecting rods 131, and the installation stability of the installation frame 100 is increased by sliding on the connecting rods 131 and abutting against the outer peripheral wall of the fan air duct 400. The first guide rail 110 is located above the fan air duct 400, and the hoist mechanism 300 is installed on the first guide rail 110. When the fixing mechanism 200 and the hoist mechanism 300 are adjusted in position, they can not affect each other, which is convenient for adjustment operation.

[0042] Furthermore, a plurality of limiting holes 111 are formed at both ends of the first guide rail 110 and the second guide rail 120 , and the limiting holes 111 are arranged at intervals along the length direction of the first guide rail 110 and the second guide rail 120 .

[0043] A clamping assembly 132 corresponding to the limiting hole 111 is disposed at the end of the guide mechanism 130 , and the clamping assembly 132 cooperates with the limiting hole 111 to limit the position.

[0044] See also Figure 2 In some embodiments, a plurality of limiting holes 111 are provided at both ends of the first guide rail 110 and the second guide rail 120. The limiting holes 111 are spaced from both ends of the first guide rail 110 and the second guide rail 120 to the middle of the first guide rail 110 and the second guide rail 120. The end of the guide mechanism 130 is connected to the portion of the first guide rail 110 and the second guide rail 120 where the limiting holes 111 are provided. When the guide mechanism 130 is adjusted to a predetermined position, the clamping assembly 132 cooperates with the limiting holes 111, so that the guide mechanism 130 cannot slide along the first guide rail 110 and the second guide rail 120, thereby achieving the effect of fixing the guide mechanism 130. There is no limiting hole 111 in the middle of the first guide rail 110 and the second guide rail 120 for installing the crane mechanism 300. A blocking member can be set at the edge of the portion of the first guide rail 110 and the second guide rail 120 where the limiting hole 111 is provided to prevent the guide mechanism 200 from moving to the middle of the first guide rail 110 and the second guide rail 120 and colliding with the crane mechanism 300 when the guide mechanism 130 is pushed.

[0045] Furthermore, the clamping assembly 132 includes a latch pin 1321 and a clamping hole 1322 corresponding to the limiting hole 111 . The clamping hole 1322 is provided on the guide mechanism 130 , and the latch pin 1321 is inserted into the limiting hole 111 and the clamping hole 1322 .

[0046] In one of the embodiments, the aperture of the snap-in hole 1322 is the same as the aperture of the limiting hole 111. When the position of the guide mechanism 130 needs to be adjusted, the latch 1321 is taken out to push the guide mechanism 130 to slide along the first guide rail 110 and the second guide rail 120. When the guide mechanism 130 reaches the specified position, the latch 1321 is inserted into the snap-in hole 1322 and the limiting hole 111 corresponding to the snap-in hole 1322 at this time. The guide mechanism 130 cannot slide along the first guide rail 110 and the second guide rail 120, so the guide mechanism 130 is fixed. This method is simple and convenient to operate and has good stability.

[0047] Preferably, a part of the limit blocks 210 of the fixing mechanism 200 is a fixed limit block 211, and another part of the limit blocks 210 is a sliding limit block 212, the fixed limit blocks 211 are respectively fixedly connected to the two connecting rods 131; the sliding limit blocks 212 are respectively slidably connected to the two connecting rods 131 and move along the length direction of the connecting rod 131.

[0048] Referring to FIG. 3 , in one embodiment, two fixed limit blocks 211 are provided, which are respectively fixedly connected to one end of the two connecting rods 131 close to the first guide rail 110, and two sliding limit blocks 212 are also provided, which are respectively located at one end of the two connecting rods 131 close to the second guide rail 120, and the sliding limit blocks 212 can slide along the connecting rods 131 in the direction close to the fixed limit blocks 211. After the installation frame 100 is sleeved on the outer periphery of the fan air guide 400, the guide mechanism 130 is adjusted until the two fixed limit blocks 211 abut against the upper half of the outer peripheral wall of the fan air guide 400, the guide mechanism 130 is fixed, and then the sliding limit blocks 212 are pushed until the two sliding limit blocks 212 abut against the lower half of the outer peripheral surface of the fan air guide 400. At this time, the four limit blocks 210 abut against the four directions of the fan air guide 400, so that the installation frame 100 can be stably fixed on the outer periphery of the fan air guide 400. By adjusting the guide mechanism 130 and the limit block 210 in coordination with each other, the fan air guide vents 400 of different sizes can be installed and fixed, and the applicability is high.

[0049] In addition, the limit blocks 210 are all triangular structures, which are convenient for abutting against the outer peripheral wall of the fan air outlet 400 with a cylindrical structure. The part where the limit blocks 210 abut against the outer peripheral wall of the fan air outlet 400 can be made into a rougher surface to increase friction and improve the fixing effect; a clamping limit member can be set below the sliding limit block 212. When the sliding limit block 212 abuts against the fan air outlet 400, the clamping limit member is installed on the connecting rod 131 to provide a limit for the sliding limit block 212 to prevent the sliding limit block 212 from moving downward under the action of gravity, resulting in unstable installation of the installation frame 100.

[0050] Preferably, the guide mechanism 130 also includes a first connecting member 133 and a second connecting member 134, which are respectively arranged at both ends of the connecting rod 131; the first connecting member 133 is provided with a first through hole 1331 corresponding to the first guide rail 110, and the first guide rail 110 is inserted into the first through hole 1331; the second connecting member 134 is provided with a second through hole 1341 corresponding to the second guide rail 120, and the second guide rail 120 is inserted into the second through hole 1341.

[0051] See also Figure 4 In one embodiment, there are two first connecting members 133 and two second connecting members 134. The two first connecting members 133 are respectively located at the upper end of the connecting rod 131. The direction of the first through hole 1331 is perpendicular to the length direction of the connecting rod 131. The two first connecting members 133 are respectively sleeved on the outer periphery of the first guide rail 110, so that the connecting rod 131 can slide along the first guide rail 110; the two second connecting members 134 are located at the lower end of the connecting rod 131. The two second connecting members 134 are respectively sleeved on the outer periphery of the second guide rail 120, so that the connecting rod 131 can slide along the second guide rail 120. Thus, a stable installation frame 100 structure can be formed, and it is ensured that the connecting rod 131 can slide along the first guide rail 110 and the second guide rail 120. The first connecting member 133 and the second connecting member 134 are both provided with a clamping hole 1322 corresponding to the limiting hole 111 to limit the connecting rod 131.

[0052] Furthermore, the transformer cooling fan lifting device further includes a third guide rail 140 and a cross bar 150. The third guide rail 140 is arranged in parallel with the first guide rail 110. When the guide mechanism 130 is arranged vertically, the third guide rail 140 and the first guide rail 110 are both arranged horizontally and connected by the cross bar 150. The hoist mechanism 300 is arranged between the first guide rail 110 and the third guide rail 140, and is respectively connected to the first guide rail 110 and the third guide rail 140. The first connecting member 133 also has a third through hole 1332 corresponding to the third guide rail 140, and the third guide rail 140 is inserted into the third through hole 1332.

[0053] See Figure 1. Figure 2 and Figure 4In one embodiment, after the installation frame 100 is installed, the third guide rail 140 and the first guide rail 110 are located at the same horizontal height, and the first guide rail 110 and the third guide rail 140 are connected by a cross bar 150 to ensure the stability of the third guide rail 140, and the third guide rail 140 does not contact the outer peripheral wall of the fan air guide port 400, and the third guide rail 140 is at a certain distance from the end face of the fan air guide port 400. The hoisting mechanism 300 is arranged at a position between the first guide rail 110 and the third guide rail 140, and the hoisting mechanism 300 can extend from the space between the third guide rail 140 and the end face of the fan air guide port 400 to the ground, which is convenient for the hoisting operation of the hoisting mechanism 300, and the hoisting mechanism 300 is respectively connected to the first guide rail 110 and the third guide rail 140, which can improve the installation stability of the hoisting mechanism 300.

[0054] Furthermore, the first connecting member 133 includes a suspension bracket 135, which is arranged at the end of the connecting rod 131; the suspension bracket 135 includes a connecting section 1351 and a supporting section 1352, one end of the connecting section 1351 is connected to the end of the connecting rod 131, and the first through hole 1331 and the third through hole 1332 are respectively located at two end positions of the connecting section 1351; the supporting section 1352 is inclined relative to the connecting section 1351, one end of the supporting section 1352 is connected to the other end of the connecting section 1351, and the other end of the supporting section 1352 is connected to the side wall of the connecting rod 131.

[0055] See Figure 1 and Figure 4 In one embodiment, the connecting section 1351 is horizontally arranged, one end of the connecting section 1351 is connected to the end of the connecting rod, and is provided with a first through hole 1331 to be connected to the first guide rail 110, and the other end is provided with a third through hole 1341 to be connected to the third guide rail 140, and the two ends of the supporting section 1352 are respectively connected to the other end of the connecting section 1351 and the connecting rod 131 to form a triangular structure, which provides stable support for the connecting section 1351 and the third guide rail 140, ensures that the cross bar 150 is not easily damaged when the crane mechanism 300 is working, and improves the stability of the crane mechanism 300.

[0056] In addition, the second connecting member 134 is a slider, the second through hole 1341 passes through the slider, and the two sliders are respectively sleeved on the outer circumference of the second guide rail 120 , so that the connecting rod 131 can slide along the second guide rail 120 .

[0057] Preferably, the hoist mechanism 300 includes a sliding assembly 310, a traction assembly 320, a rotating assembly 330 and a clamping assembly 340. The sliding assembly 310 is slidably connected to the first guide rail 110 or the guide mechanism 130, so that the hoist mechanism 300 moves along the length direction of the first guide rail 110 or the guide mechanism 130; the traction assembly 320 is connected to the clamping assembly 340 through the rotating assembly 330, and the traction assembly 320 is used to drive the rotating assembly 330 and the clamping assembly 340 to rise and fall; the rotating assembly 330 is used to drive the clamping assembly 340 to rotate relative to the traction assembly 320; and the clamping assembly 340 is used to lift the fan motor.

[0058] In one of the embodiments, the sliding component 310 may adopt structures such as rollers to drive the crane mechanism 300 to move, so as to facilitate the adjustment of the horizontal position of the fan motor according to the actual maintenance process; the traction component 320 may adopt structures such as wire ropes or chains to adjust the raising and lowering of the clamping component 340 at its lower end; the rotating component 330 is arranged between the traction component 320 and the clamping component 340, and is used to drive the clamping component 340 to drive the fan motor clamped by the clamping component 340 to rotate, and when the fan motor is longer, the direction of rotating the fan motor makes it easier to place the fan motor into the fan air guide port 400; the clamping component 340 adopts a hook to hook the fan motor for lifting and lowering.

[0059] A method for hoisting a fan motor based on the above transformer cooling fan hoisting device comprises the following steps:

[0060] The installation frame 100 is sleeved on the outer periphery of the fan air guide port 400 .

[0061] The guide mechanism 130 is pushed to move along the first guide rail 110 and the second guide rail 120, and the relative position of the limit block 210 on the installation frame 100 is adjusted so that the limit block 210 abuts against the outer peripheral wall of the fan air guide port 400 to fix the transformer cooling fan lifting device.

[0062] The fan motor components are hoisted by the hoist mechanism 300 , and the hoist mechanism 300 hoists the fan motor to a position for assembly with the fan air guide port 400 .

[0063] See Figure 1- Figure 5In one embodiment, the installation frame 100 is sleeved on the outer periphery of the fan air duct 400, and the hoisting mechanism 300 is located above the fan air duct 400 to facilitate the hoisting operation; the positions of the guide mechanism 130 and the limit block 210 are adjusted so that the limit block 210 abuts against the outer peripheral wall of the fan air duct 400, so that the installation frame 100 is stably sleeved on the outer periphery of the fan air duct 400; the replaced faulty fan motor is lifted by the hoisting mechanism 300 and placed on the bottom surface for easy recovery by maintenance personnel, and the fan motor to be replaced is placed on the ground and lifted to the position of the fan air duct 400 by the hoisting mechanism 300. The maintenance personnel can move the fan motor into the fan air duct 400 to perform the replacement operation. The operation process is simple and convenient, and the lifting process does not require manual operation, saving time and effort.

[0064] The specific implementation process of this application is as follows: Figure 5 , sleeve the installation frame 100 on the outer periphery of the fan air duct 400, push the connecting rod 131 to move toward the middle of the first guide rail 110 and the second guide rail 120, so that the fixed limit block 211 abuts against the outer peripheral wall of the fan air duct 400, and insert the pin 1321 into the clamping hole 1322 and the limit block 111 to fix the connecting rod 131; then adjust the sliding limit block 212 to abut against the outer peripheral wall of the fan air duct 400, install the clamping limit piece, and fix the sliding limit block 2112; lift the replaced faulty fan motor to the ground through the hoisting mechanism 300 for recovery, place the new fan motor on the ground, and the clamping assembly 340 of the hoisting mechanism 300 clamps the new fan motor, and under the traction working force of the traction assembly 320, the clamping assembly 340 performs lifting and lowering movements. Thus, it is possible to place a new fan motor at the air guide port 400 of the fan, and the maintenance personnel can pull the new fan motor into the air guide port 400 of the fan, and then carry out the subsequent operation of replacing the fan motor.

[0065] The beneficial effects that can be achieved through the above-mentioned implementation method include: the hoisting mechanism 300 can be stably fixed at the position of the fan air outlet 400 through the installation frame 100, and the installation process is simple; the larger and heavier fan motor can be hoisted to the fan air outlet 400 through the hoisting mechanism 300 for subsequent replacement operations, and no manual operation is required during the hoisting of the fan motor, which effectively saves manpower, improves safety, and can improve work efficiency.

[0066] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A transformer cooling fan lifting device, used for lifting a fan motor to a fan air guide port (400), characterized in that: include: An installation frame (100) comprises a first guide rail (110), a second guide rail (120) and a guide mechanism (130), wherein the first guide rail (110), the second guide rail (120) and the guide mechanism (130) are arranged in a frame body so that the installation frame (100) can be sleeved on the outer peripheral wall of the fan air guide port (400), wherein the first guide rail (110) and the second guide rail (120) are arranged in parallel, and two ends of the guide mechanism (130) are respectively slidably connected to the first guide rail (110) and the second guide rail (120), and the guide mechanism (130) can move along the length direction of the first guide rail (110) and the second guide rail (120); A fixing mechanism (200) comprising a plurality of limit blocks (210), wherein the plurality of limit blocks (210) are arranged along the installation frame (100) and their relative positions are adjustable to each other so as to be used for resisting and fixing to the outer peripheral wall of the fan air guide port (400); A hoist mechanism (300) is connected to the installation frame (100), and the hoist mechanism (300) is used to hoist the fan motor and can lift the fan motor to face the fan air guide port (400).

2. The transformer cooling fan lifting device according to claim 1, characterized in that: The guide mechanism (130) comprises two connecting rods (131), the two ends of the connecting rods (131) are respectively slidably connected to the first guide rail (110) and the second guide rail (120), and the first guide rail (110), the second guide rail (120) and the two connecting rods (131) together form the installation frame (100); the fixing mechanism (200) is connected to the connecting rods (131); and the hoist mechanism (300) is connected to the first guide rail (110).

3. The transformer cooling fan lifting device according to claim 2, characterized in that: A plurality of limiting holes (111) are provided at both ends of the first guide rail (110) and the second guide rail (120), and the limiting holes (111) are arranged at intervals along the length direction of the first guide rail (110) and the second guide rail (120); The end of the guide mechanism (130) is provided with a clamping assembly (132) corresponding to the limiting hole (111), and the clamping assembly (132) cooperates with the limiting hole (111) for limiting.

4. The transformer cooling fan lifting device according to claim 3, characterized in that: The clamping assembly (132) comprises a latch pin (1321) and a clamping hole (1322) corresponding to the limiting hole (111); the clamping hole (1322) is provided on the guide mechanism (130); and the latch pin (1321) is inserted into the limiting hole (111) and the clamping hole (1322).

5. The transformer cooling fan lifting device according to claim 2, characterized in that: Among the multiple limit blocks (210) of the fixing mechanism (200), a portion of the limit blocks (210) are fixed limit blocks (211), and another portion of the limit blocks (210) are sliding limit blocks (212); the fixed limit blocks (211) are respectively fixedly connected to the two connecting rods (131); and the sliding limit blocks (212) are respectively slidably connected to the two connecting rods (131) and move along the length direction of the connecting rods (131).

6. The transformer cooling fan lifting device according to any one of claims 2 to 5, characterized in that: The guide mechanism (130) further comprises a first connecting member (133) and a second connecting member (134), wherein the first connecting member (133) and the second connecting member (134) are respectively arranged at two ends of the connecting rod (131); the first connecting member (133) is provided with a first through hole (1331) corresponding to the first guide rail (110), and the first guide rail (110) is inserted into the first through hole (1331); the second connecting member (134) is provided with a second through hole (1341) corresponding to the second guide rail (120), and the second guide rail (120) is inserted into the second through hole (1341).

7. The transformer cooling fan lifting device according to claim 6, characterized in that: The invention also comprises a third guide rail (140) and a cross bar (150), wherein the third guide rail (140) is arranged in parallel with the first guide rail (110); when the guide mechanism (130) is arranged vertically, the third guide rail (140) and the first guide rail (110) are both arranged horizontally and connected via the cross bar (150); the crane mechanism (300) is arranged between the first guide rail (110) and the third guide rail (140), and is respectively connected to the first guide rail (110) and the third guide rail (140); The first connecting member (133) is further provided with a third through hole (1332) corresponding to the third guide rail (140), and the third guide rail (140) is inserted into the third through hole (1332).

8. The transformer cooling fan lifting device according to claim 7, characterized in that: The first connecting member (133) comprises a suspension frame (135), wherein the suspension frame (135) is arranged at the end of the connecting rod (131); the suspension frame (135) comprises a connecting section (1351) and a supporting section (1352), wherein one end of the connecting section (1351) is connected to the end of the connecting rod (131), and the first through hole (1331) and the third through hole (1332) are respectively located at two end positions of the connecting section (1351); the supporting section (1352) is arranged obliquely relative to the connecting section (1351), wherein one end of the supporting section (1352) is connected to the other end of the connecting section (1351), and the other end of the supporting section (1352) is connected to the side wall of the connecting rod (131).

9. The transformer cooling fan lifting device according to claim 1, characterized in that: The hoist mechanism (300) comprises a sliding assembly (310), a traction assembly (320), a rotating assembly (330) and a clamping assembly (340); the sliding assembly (310) is slidably connected to the first guide rail (110) or the guide mechanism (130), so that the hoist mechanism (300) moves along the length direction of the first guide rail (110) or the guide mechanism (130); the traction assembly (320) is connected to the clamping assembly (340) via the rotating assembly (330); the traction assembly (320) is used to drive the rotating assembly (330) and the clamping assembly (340) to rise and fall; the rotating assembly (330) is used to drive the clamping assembly (340) to rotate relative to the traction assembly (320); and the clamping assembly (340) is used to lift the fan motor.

10. A method for hoisting a fan motor using the transformer cooling fan hoisting device according to any one of claims 1 to 9, characterized in that: The following steps are involved: The installation frame (100) is sleeved on the outer periphery of the fan air guide port (400); Pushing the guide mechanism (130) to move along the first guide rail (110) and the second guide rail (120), and adjusting the relative position of the limit block (210) on the installation frame (100) so that the limit block (210) abuts against the outer peripheral wall of the fan air guide port (400) to fix the lifting device; The parts of the fan motor are hoisted by the hoisting mechanism (300), and the hoisting mechanism (300) is used to hoist the fan motor to a position for assembly with the fan air guide port (400).

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