Combined type electric lifting maintenance platform of large transformer

Abstract

The utility model relates to the technical field of electric power equipment, aims to solve the problems of high manpower and material resource cost, low overhaul efficiency, high personnel safety risk, high equipment loss risk, incapability of reaching crane operation and lack of flexibility and convenience in overhaul and maintenance operation in the prior art, and provides a combined type electric lifting overhaul platform of a large transformer. Comprising a slide rail platform; a plurality of electric lifting devices are arranged on the sliding rail platform, and the ends, close to the sliding rail platform, of the electric lifting devices are slidably connected to the sliding rail platform and are in sliding fit in the axial direction of the sliding rail platform. The ends, away from the sliding rail platform, of the multiple electric lifting devices are provided with a combined working table top, the combined working table top is fixedly connected to the ends, away from the sliding rail platform, of the multiple electric lifting devices, and the multiple electric lifting devices are each provided with an electric lifting system. The utility model has the beneficial effects of low cost, high maintenance efficiency, small personnel safety risk, small equipment loss risk, and improved operation flexibility and convenience.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power equipment, in particular to a combined electric lifting and repairing platform for a large transformer. Background Art

[0002] Currently in the power system, the high-altitude maintenance method for large transformers usually involves manually building a temporary scaffolding platform or using a crane.

[0003] The method of building scaffolding requires a lot of manpower and material resources and is inefficient, which cannot meet the requirements of emergency maintenance. In addition, building scaffolding at high altitudes requires the movement of heavy objects, which brings safety hazards and makes people vulnerable to injury. The adjustment and disassembly of the built scaffolding is also complicated and difficult.

[0004] The crane operation method is more suitable for large transformers placed outdoors and in a relatively open environment. However, for large oil-immersed transformers in the hydropower field, there are usually fire pipes around them, which will hinder the crane operation. In addition, due to the particularity of hydropower generation, the main transformer is usually located inside the dam body, which is difficult for conventional cranes to reach, which makes the operation more difficult. Utility Model Content

[0005] The utility model aims to provide a combined electric lifting maintenance platform for large transformers to solve the problems in the prior art of high manpower and material costs for maintenance work, low maintenance efficiency, high risk of personnel safety, high risk of equipment loss, inability to reach by crane operation, and lack of flexibility and convenience.

[0006] The embodiment of the utility model is achieved as follows:

[0007] The embodiment of the utility model provides a combined electric lifting and maintenance platform for a large transformer, which includes a slide rail platform;

[0008] The slide rail platform is provided with a plurality of electric lifting devices, one end of the plurality of electric lifting devices close to the slide rail platform is slidably connected to the slide rail platform and slides along the axial direction of the slide rail platform;

[0009] A combined work surface is provided at one end of the electric lifting devices away from the slide rail platform. The combined work surface is fixedly connected to one end of the electric lifting devices away from the slide rail platform. The electric lifting devices are all equipped with an electric lifting system.

[0010] The combined electric lifting maintenance platform for a large transformer disclosed in this embodiment can realize safe, efficient and convenient lifting and height operations of the maintenance platform due to the modular combination design of the above-mentioned slide rail platform, the above-mentioned electric lifting device and the above-mentioned combined work table. Therefore, the combined electric lifting maintenance platform for a large transformer has the beneficial effects of low cost, high maintenance efficiency, low personnel safety risk, low equipment loss risk, and improved operational flexibility and convenience.

[0011] Optionally: the slide rail platform has a guide base and a transfer base, and the transfer base is vertically connected to the guide base;

[0012] The guide base has a first guide rail and a second guide rail, the first guide rail and the second guide rail are parallel to each other and arranged at intervals, a plurality of rail seats are arranged at the bottom of the first guide rail and the second guide rail, the plurality of rail seats are parallel to each other and evenly spaced, and the top surfaces of the plurality of rail seats are fixedly connected to the bottom surfaces of the first guide rail and the second guide rail respectively at two ends;

[0013] The bottoms of the plurality of rail seats are all clamped with rails, and the axial direction of the rails is perpendicular to the axial direction of the first guide rail and the second guide rail;

[0014] The adapter base has a third guide rail and a fourth guide rail, the third guide rail and the fourth guide rail are parallel to each other and arranged at intervals, a plurality of connecting members are provided at the bottom of the third guide rail and the fourth guide rail, and the plurality of connecting members are parallel to each other and fixedly connected at the bottom of the third guide rail and the fourth guide rail at even intervals.

[0015] With such arrangement, the track can adjust the distance between the guide base and the large transformer, making it convenient for the staff to get as close to the large transformer as possible, thereby improving the maintenance efficiency. The adapter base enables the construction of the combined electric lifting maintenance platform to be completed only by low-altitude construction on the adapter base, and then the constructed combined electric lifting maintenance platform is pushed into the guide base. The operating personnel do not need to carry out high-altitude transportation and construction, which greatly reduces the work risks of the personnel and the possible harm of high-altitude transportation to the transformer equipment.

[0016] Optionally: the top surfaces of the first guide rail and the second guide rail each have a first inner guide groove and a first outer guide groove, the first inner guide groove and the first outer guide groove are parallel to each other, and a partition is provided between the first inner guide groove and the first outer guide groove;

[0017] The top surfaces of the third guide rail and the fourth guide rail respectively have a first guide groove and a second guide groove, the first guide groove and the second guide groove are located on the same plane as the first inner guide groove and the first outer guide groove, and the first guide groove and the second guide groove are connected to the first inner guide groove and the first outer guide groove of the first guide rail;

[0018] The first guide groove and the second guide groove are provided with a first connecting groove and a second connecting groove arranged parallel to each other at one end close to the second guide rail, the first connecting groove and the second connecting groove are coaxial with the first guide groove and the second guide groove respectively, one end of the first connecting groove and the second connecting groove is connected to the first inner guide groove and the first outer guide groove of the first guide rail, and the other end of the first connecting groove and the second connecting groove is connected to the first inner guide groove and the first outer guide groove of the second guide rail.

[0019] Such arrangement enables the combined electric lifting and maintenance platform to be assembled on the above-mentioned first guide groove and the above-mentioned second guide groove, and the assembled combined electric lifting and maintenance platform is pushed into the above-mentioned first inner guide groove and the above-mentioned first outer guide groove of the above-mentioned first guide rail and the above-mentioned second guide rail through the above-mentioned first guide groove, the above-mentioned second guide groove, the above-mentioned first connecting groove and the above-mentioned second connecting groove, so that the combined electric lifting and maintenance platform can slide along the above-mentioned first inner guide groove and the above-mentioned first outer guide groove of the above-mentioned first guide rail and the above-mentioned second guide rail, thereby facilitating maintenance work on large transformers.

[0020] Optionally: a plurality of adjustment feet are arranged on the outer sides of the first guide rail, the second guide rail, the third guide rail and the fourth guide rail, and the plurality of adjustment feet are evenly fixedly connected to the outer sides of the first guide rail, the second guide rail, the third guide rail and the fourth guide rail;

[0021] Several of the above-mentioned adjustment feet are provided with bolts, and the above-mentioned bolts have a screw rod, and the above-mentioned screw rod vertically penetrates the above-mentioned adjustment feet. The above-mentioned screw rod is threadedly connected with a first nut and a second nut, and the above-mentioned first nut abuts against the top surface of the above-mentioned adjustment foot, and the above-mentioned second nut abuts against the bottom surface of the above-mentioned adjustment foot. The bottom of the above-mentioned screw rod is fixedly connected to a supporting foot.

[0022] With such arrangement, by rotating the first nut and the second nut on the screw rod, the levels of the first guide rail, the second guide rail, the third guide rail and the fourth guide rail can be adjusted, so that the combined electric lifting and maintenance platform can operate stably.

[0023] Optionally: the diameter of the supporting foot is greater than the diameter of the screw.

[0024] Such a configuration is helpful to expand the force-bearing area of ​​the above-mentioned support feet, avoid the above-mentioned support feet from being embedded in the bottom surface, and thus cause the levels of the first guide rail, the second guide rail, the third guide rail and the fourth guide rail to shift.

[0025] Optionally: a transverse positioning rod is provided at one end of the first guide rail and the second guide rail, and both ends of the transverse positioning rod are fixedly connected to the top surfaces of the first guide rail and the second guide rail.

[0026] With such arrangement, the lateral positioning rod can limit the initial position of the electric lifting device, thereby preventing the electric lifting device from sliding out of the first guide rail and the second guide rail during movement, thereby reducing the risk of loss of personnel and equipment.

[0027] Optionally: a plurality of the electric lifting devices all have a sliding plate, the top surface of the sliding plate is fixedly connected with a rhombus-shaped telescopic bracket, one end of the rhombus-shaped telescopic bracket is fixedly connected to the top surface of the sliding plate, and the other end of the rhombus-shaped telescopic bracket is fixedly connected to the bottom surface of the combined work surface;

[0028] Both sides of the sliding plate are provided with a first outer directional wheel, a second outer directional wheel, a first inner universal wheel and a second inner universal wheel;

[0029] The first outer fixed wheel and the first inner universal wheel are respectively adapted to the first outer guide groove and the first inner guide groove of the first guide rail, and the second outer fixed wheel and the second inner universal wheel are respectively adapted to the first outer guide groove and the first inner guide groove of the second guide rail.

[0030] With such arrangement, the lifting purpose of the electric lifting device can be achieved through the diamond-shaped telescopic bracket, and the first outer fixed wheel, the second outer fixed wheel, the first inner universal wheel and the second inner universal wheel on the sliding plate can both enable the sliding plate to be moved and limit the sliding plate in the first inner guide groove and the first outer guide groove of the first guide rail and the second guide rail, so that the electric lifting device can move more flexibly and agilely, which is beneficial to improving the work efficiency of repairing large transformers.

[0031] Optionally: a limit rod is provided between the sliding plates of adjacent electric lifting devices, and both ends of the limit rod are detachably connected between the sliding plates of adjacent electric lifting devices.

[0032] In this way, the limit rod is used to connect the adjacent electric lifting devices to limit the position between the adjacent electric lifting devices, so that several of the electric lifting devices are connected into a combination, thereby making the combined electric lifting maintenance platform more stable during operation, thereby ensuring the personal safety of the operators.

[0033] Optionally: the electric lifting system has a motor, the output shaft of the motor is connected to a hydraulic pump, and the motor and the hydraulic pump are both fixedly connected to the top surface of the sliding plate;

[0034] The diamond-shaped telescopic bracket is equipped with a plurality of hydraulic cylinders, and the rod chamber oil inlets and rodless chamber oil inlets on the plurality of hydraulic cylinders are connected to the hydraulic pump via high-pressure pipes.

[0035] With such arrangement, the lifting and lowering of the diamond-shaped telescopic bracket is achieved by the motor driving the hydraulic pump, which drives the hydraulic cylinders through the high-pressure pipe, and the diamond-shaped telescopic bracket is lifted and lowered by the hydraulic cylinders. When the piston rods of the hydraulic cylinders are extended, the diamond-shaped telescopic bracket rises, and when the piston rods of the hydraulic cylinders are retracted, the diamond-shaped telescopic bracket is lowered. Through the electric lifting system, the operator can easily adjust the height of the platform.

[0036] Optionally: a fall arrester is installed on the diamond-shaped telescopic bracket.

[0037] With such arrangement, after the electric lifting device is raised to the specified position, the anti-fall device is installed to physically lock the height of the electric lifting device to prevent the electric lifting device from accidentally falling, thereby avoiding accidental falling of personnel and playing a safety protection role.

[0038] Optionally, the combined work surface has a plurality of basic surface units, and aisle surface units are provided between a plurality of adjacent basic surface units, and both ends of the aisle surface units are connected to the adjacent basic surface units;

[0039] Both sides of the basic table top units are provided with expansion table tops, and the expansion table tops are hingedly connected to the two sides of the basic table top units through a plurality of hinges.

[0040] With such arrangement, several basic table top units are connected into a combined work table through the aisle table top units, which is beneficial for maintenance work of the staff. The arrangement of the expansion table top can expand a certain space, expand the overall working area of ​​the combined work table top, and facilitate the movement of maintenance personnel on the combined work table top. At the same time, the arrangement of the expansion table top is convenient for folding, which is beneficial for the transportation and storage of the combined work table top.

[0041] Optionally: both ends of the plurality of the basic table top units are installed with first table top guardrails, and the bottom ends of the first table top guardrails are hingedly connected to both ends of the plurality of the basic table top units;

[0042] Second countertop guardrails are installed on both sides of the aisle countertop unit, and the bottom ends of the second countertop guardrails are hingedly connected to the two sides of the aisle countertop unit;

[0043] The outer sides of the above-mentioned extended table tops are all equipped with third table top guardrails, and the bottom ends of the above-mentioned third table top guardrails are hingedly connected to the outer sides of the above-mentioned extended table tops.

[0044] With such arrangement, the first table guardrail, the second table guardrail and the third table guardrail can protect the workers and are easy to fold onto the basic table unit, the aisle table unit or the extended table, which is beneficial for transportation and storage.

[0045] Optionally: angle steels are fixedly connected to the outer edges of the above-mentioned basic table top unit, the above-mentioned aisle table top unit and the above-mentioned extended table top, and the bottom ends of the above-mentioned first table top guardrail, the above-mentioned second table top guardrail and the above-mentioned third table top guardrail are respectively hingedly connected to the angle steels of the above-mentioned basic table top unit, the above-mentioned aisle table top unit and the above-mentioned extended table top.

[0046] With this arrangement, the angle steel can prevent objects dropped by maintenance personnel from falling directly to the ground, reducing safety risks.

[0047] Optionally: the bottom surface of the above-mentioned basic table unit has a storage box, and the top end of the above-mentioned diamond-shaped telescopic bracket is fixedly connected to the inner top surface of the above-mentioned storage box.

[0048] With such arrangement, the diamond-shaped telescopic bracket can be stored in the storage box. When the diamond-shaped telescopic bracket is not raised, all of the diamond-shaped telescopic bracket is located in the storage box, which effectively protects the diamond-shaped telescopic bracket from being damaged.

[0049] Optionally: a folding work ladder is provided at one end of the combined work surface, and one end of the folding work ladder is hingedly connected to one end of the combined work surface.

[0050] In this way, the foldable work ladder is convenient for operators to climb onto the combined work surface, and the height can be manually adjusted as the electric lifting device is raised or lowered.

[0051] When in use, first place a plurality of the above-mentioned rail seats on a plurality of the above-mentioned rails at intervals, arrange the above-mentioned first rail and the above-mentioned second rail of the above-mentioned guide base on the above-mentioned rail seats, and use the above-mentioned connecting support rod to fix the positions of the above-mentioned first rail and the above-mentioned second rail. Secondly, use the above-mentioned first nut and the above-mentioned second nut on the above-mentioned adjusting foot to level the above-mentioned first rail, the above-mentioned second rail, the above-mentioned third rail and the above-mentioned fourth rail as a whole, install the above-mentioned transverse positioning rod on one side of the above-mentioned first rail and the above-mentioned second rail, and then arrange the above-mentioned adapter base to be connected with the above-mentioned guide base, and the above-mentioned guide base is arranged; push the above-mentioned electric lifting device from the above-mentioned adapter base to the above-mentioned first rail and the above-mentioned second rail, push in the above-mentioned electric lifting device of a corresponding number according to the needs of the operating range, and use the above-mentioned limit rod to connect the above-mentioned electric lifting devices in pairs. The electric lifting device is locked on the first guide rail and the second guide rail by means of the bolt connection, and the electric lifting device is arranged; the required components of the combined work surface are arranged, the basic surface unit and the electric lifting device are connected, the aisle surface unit is mounted between the two basic surface units, and then the first surface guardrail, the second surface guardrail and the third surface guardrail are installed on the surface, and the combined work surface is arranged; during maintenance work, the electric lifting system controls the electric lifting device to rise to a specified height, the fall arrester is installed under the electric lifting device, the folding work ladder is installed at one end of the basic surface unit, and the extended surface of the combined work surface is unfolded, and the unfolding method is telescopic or folding. When disassembling, the above steps can be performed in reverse.

[0052] Beneficial effects of the utility model:

[0053] 1. Improved maintenance efficiency. Through the above-mentioned electric lifting system, operators can easily adjust the height of the maintenance platform. In addition, the modular construction method takes much less time than the traditional scaffolding method, making the maintenance of large transformers more efficient.

[0054] 2. It provides a safer working environment. The platform construction in the utility model is completed at a low altitude on the above-mentioned adapter base. After the platform is built, it is pushed into the above-mentioned guide base. The operators do not need to carry out high-altitude transportation and construction, which greatly reduces the work risks of the personnel and the possible harm of high-altitude transportation to the transformer equipment.

[0055] 3. The flexibility and convenience of operation are improved. The combined design of the slide rail platform, the electric lifting device and the combined work surface and the electric lifting system in the utility model make the assembly and adjustment of the platform more flexible, and can be applied to large transformers of different specifications and models and different operating range requirements.

[0056] Based on the above description, the combined electric lifting and maintenance platform for a large transformer disclosed by the utility model has the beneficial effects of low cost, high maintenance efficiency, low personnel safety risk, low equipment loss risk, and improved operational flexibility and convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0058] Figure 1 This is a structural schematic diagram of a combined electric lifting maintenance platform for a large transformer in an embodiment of the utility model;

[0059] Figure 2 For the utility model embodiment Figure 1 The enlarged schematic diagram at A in the middle;

[0060] Figure 3 This is a schematic diagram of the structure of the slide rail platform in the embodiment of the utility model;

[0061] Figure 4 For the utility model embodiment Figure 3 The enlarged schematic diagram of point B in the middle;

[0062] Figure 5 It is a structural schematic diagram of a combined work surface in an embodiment of the utility model.

[0063] Icons: 1-slide platform, 2-electric lifting device, 3-combined work surface, 4-electric lifting system, 5-guide base, 6-adapter base, 7-first guide rail, 8-second guide rail, 9-rail seat, 10-track, 11-third guide rail, 12-fourth guide rail, 13-connector, 14-first inner guide groove, 15-first outer guide groove, 16-partition, 17-first guide groove, 18-second guide groove, 19-first connecting groove, 20-second connecting groove, 21-adjusting foot, 22-bolt, 23-screw, 24-first nut, 25-second nut, 26-support foot, 27-lateral positioning rod, 28-sliding plate, 2 9-diamond telescopic bracket, 30-first outer directional wheel, 31-first inner universal wheel, 32-second inner universal wheel, 33-limit rod, 34-motor, 35-hydraulic pump, 36-hydraulic cylinder, 37-fall arrester, 38-rod, 39-arc buckle, 40-basic table unit, 41-aisle table unit, 42-expansion table, 43-first table guardrail, 44-second table guardrail, 45-third table guardrail, 46-angle steel, 47-storage box, 48-folding work ladder, 49-connecting wing plate, 50-hole, 51-L-shaped connector, 52-long hole, 53-second outer directional wheel, 54-connecting support rod. DETAILED DESCRIPTION

[0064] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0065] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0066] Example

[0067] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , This embodiment provides a combined electric lifting maintenance platform for a large transformer, including a slide rail platform 1;

[0068] A plurality of electric lifting devices 2 are provided on the slide rail platform 1, and one end of the plurality of electric lifting devices 2 close to the slide rail platform 1 is slidably connected to the slide rail platform 1 and slides along the axial direction of the slide rail platform 1;

[0069] A combined work surface 3 is provided at one end of the electric lifting devices 2 away from the slide rail platform 1 . The combined work surface 3 is fixedly connected to one end of the electric lifting devices 2 away from the slide rail platform 1 . The electric lifting devices 2 are all equipped with an electric lifting system 4 .

[0070] The combined electric lifting maintenance platform for a large transformer disclosed in this embodiment can realize safe, efficient and convenient lifting and height operations of the maintenance platform due to the modular combination design of the slide rail platform 1, the electric lifting device 2 and the combined work table 3, thereby making the combined electric lifting maintenance platform for a large transformer have the beneficial effects of low cost, high maintenance efficiency, low personnel safety risk, low equipment loss risk, and improved operational flexibility and convenience.

[0071] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The slide rail platform 1 has a guide base 5 and an adapter base 6, and the adapter base 6 is vertically connected to the guide base 5;

[0072] The guide base 5 has a first guide rail 7 and a second guide rail 8, the first guide rail 7 and the second guide rail 8 are parallel to each other and arranged at intervals, a plurality of rail seats 9 are arranged at the bottom of the first guide rail 7 and the second guide rail 8, the plurality of rail seats 9 are parallel to each other and evenly spaced, and the top ends of the plurality of rail seats 9 are respectively fixedly connected to the bottom surfaces of the first guide rail 7 and the second guide rail 8;

[0073] The bottoms of the plurality of rail seats 9 are all clamped with rails 10, and the axial direction of the rails 10 is perpendicular to the axial direction of the first guide rail 7 and the second guide rail 8;

[0074] The adapter base 6 has a third guide rail 11 and a fourth guide rail 12, the third guide rail 11 and the fourth guide rail 12 are parallel to each other and arranged at intervals, and a plurality of connectors 13 are provided at the bottom of the third guide rail 11 and the fourth guide rail 12, and the plurality of connectors 13 are parallel to each other and fixedly connected to the bottom of the third guide rail 11 and the fourth guide rail 12 at even intervals. The track 10 can adjust the distance between the guide base 5 and the large transformer, so that the staff can get as close to the large transformer as possible, thereby improving the maintenance efficiency. The adapter base 6 makes it possible to build the combined electric lifting maintenance platform only by low-altitude construction on the adapter base 6, and then push the built combined electric lifting maintenance platform into the guide base 5. The operating personnel do not need to carry out high-altitude transportation and construction, which greatly reduces the work risks of the personnel and the possible harm of high-altitude transportation to the transformer equipment.

[0075] The top surfaces of the first guide rail 7 and the second guide rail 8 are provided with a first inner guide groove 14 and a first outer guide groove 15, the first inner guide groove 14 and the first outer guide groove 15 are parallel to each other, and a partition 16 is provided between the first inner guide groove 14 and the first outer guide groove 15; the top surfaces of the third guide rail 11 and the fourth guide rail 12 are provided with a first guide groove 17 and a second guide groove 18, respectively, the first guide groove 17 and the second guide groove 18 are located on the same plane as the first inner guide groove 14 and the first outer guide groove 15, and the first guide groove 17 and the second guide groove 18 are connected to the first inner guide groove 14 and the first outer guide groove 15 of the first guide rail 7; the first guide groove 17 and the second guide groove 18 are provided with a first connecting groove 19 and a second connecting groove 20 arranged parallel to each other and spaced apart at one end thereof near the second guide rail 8, and the first connecting groove 19 and the second connecting groove 20 are connected to the first guide groove 17 and the second guide groove 18, respectively Coaxially, one end of the first connecting groove 19 and the second connecting groove 20 are connected to the first inner guide groove 14 and the first outer guide groove 15 of the first guide rail 7, and the other end of the first connecting groove 19 and the second connecting groove 20 are connected to the first inner guide groove 14 and the first outer guide groove 15 of the second guide rail 8, so that the combined electric lifting maintenance platform can be assembled on the first guide groove 17 and the second guide groove 18, and the assembled combined electric lifting maintenance platform is pushed into the first inner guide groove 14 and the first outer guide groove 15 of the first guide rail 7 and the second guide rail 8 through the first guide groove 17, the second guide groove 18, the first connecting groove 19 and the second connecting groove 20, so that the combined electric lifting maintenance platform can slide along the first inner guide groove 14 and the first outer guide groove 15 of the first guide rail 7 and the second guide rail 8, thereby facilitating maintenance operations on large transformers.

[0076] A plurality of adjusting feet 21 are arranged on the outer side surfaces of the first guide rail 7, the second guide rail 8, the third guide rail 11 and the fourth guide rail 12, and the plurality of adjusting feet 21 are evenly fixedly connected to the outer side surfaces of the first guide rail 7, the second guide rail 8, the third guide rail 11 and the fourth guide rail 12; a plurality of adjusting feet 21 are provided with bolts 22, and the bolts 22 have screw rods 23, and the screw rods 23 vertically penetrate the adjusting feet 21, and the first nut 24 and the second nut 25 are threadedly connected to the screw rods 23, and the first nut 24 abuts against the top surface of the adjusting feet 21, and the second nut 25 abuts against the bottom surface of the adjusting feet 21, and a supporting foot 26 is fixedly connected to the bottom of the screw rod 23, and the first guide rail 7, the second guide rail 8, the third guide rail 11 and the fourth guide rail 12 can be adjusted to a level by rotating the first nut 24 and the second nut 25 on the screw rod 23, so as to facilitate the stable operation of the combined electric lifting maintenance platform.

[0077] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The diameter of the support foot 26 is greater than the diameter of the screw rod 23, which is beneficial to expand the force-bearing area of ​​the support foot 26 and prevent the support foot 26 from being embedded in the bottom surface, thereby causing the levels of the first guide rail 7, the second guide rail 8, the third guide rail 11 and the fourth guide rail 12 to shift.

[0078] A transverse positioning rod 27 is provided at one end of the first guide rail 7 and the second guide rail 8, and both ends of the transverse positioning rod 27 are fixedly connected to the top surfaces of the first guide rail 7 and the second guide rail 8. The transverse positioning rod 27 can limit the initial position of the electric lifting device 2 to prevent the electric lifting device 2 from sliding out of the first guide rail 7 and the second guide rail 8 during movement, thereby reducing the risk of loss of personnel and equipment.

[0079] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , several electric lifting devices 2 all have a sliding plate 28, the top surface of the sliding plate 28 is fixedly connected with a rhombus-shaped telescopic bracket 29, one end of the rhombus-shaped telescopic bracket 29 is fixedly connected to the top surface of the sliding plate 28, and the other end of the rhombus-shaped telescopic bracket 29 is fixedly connected to the bottom surface of the combined work surface 3;

[0080] Both sides of the sliding plate 28 are provided with a first outer directional wheel 30, a second outer directional wheel 53, a first inner universal wheel 31 and a second inner universal wheel 32;

[0081] The first outer fixed wheel 30 and the first inner universal wheel 31 are respectively adapted to the first outer guide groove 15 and the first inner guide groove 14 of the first guide rail 7, and the second outer fixed wheel 53 and the second inner universal wheel 32 are respectively adapted to the first outer guide groove 15 and the first inner guide groove 14 of the second guide rail 8. The lifting purpose of the electric lifting device 2 can be achieved through the diamond-shaped telescopic bracket 29. The first outer fixed wheel 30, the second outer fixed wheel 53, the first inner universal wheel 31 and the second inner universal wheel 32 on the sliding plate 28 can make the sliding plate 28 move and limit the sliding plate 28 in the first inner guide groove 14 and the first outer guide groove 15 of the first guide rail 7 and the second guide rail 8, so that the electric lifting device 2 moves more flexibly and agilely, which is conducive to improving the working efficiency of repairing large transformers.

[0082] Limit rods 33 are provided between the sliding plates 28 of adjacent electric lifting devices 2. Both ends of the limit rods 33 are detachably connected between the sliding plates 28 of adjacent electric lifting devices 2. The limit rods 33 are used to connect adjacent electric lifting devices 2 to limit the position between adjacent electric lifting devices 2, so that several electric lifting devices 2 are connected into a combination, thereby making the combined electric lifting maintenance platform more stable during work, thereby ensuring the personal safety of the operators.

[0083] The electric lifting system 4 has a motor 34, and the output shaft of the motor 34 is connected to the hydraulic pump 35. The motor 34 and the hydraulic pump 35 are both fixedly connected to the top surface of the sliding plate 28; the diamond-shaped telescopic bracket 29 is adapted to be equipped with a plurality of hydraulic cylinders 36, and the rod chamber oil inlet and the rodless chamber oil inlet on the plurality of hydraulic cylinders 36 are connected to the hydraulic pump 35 through high-pressure pipes. The lifting and lowering of the diamond-shaped telescopic bracket 29 is achieved by the motor 34 driving the hydraulic pump 35 to operate, and the hydraulic pump 35 drives the plurality of hydraulic cylinders 36 through high-pressure pipes. The diamond-shaped telescopic bracket 29 is lifted and lowered by the plurality of hydraulic cylinders 36. When the piston rods of the plurality of hydraulic cylinders 36 are extended, the diamond-shaped telescopic bracket 29 is lifted, and when the piston rods of the plurality of hydraulic cylinders 36 are retracted, the diamond-shaped telescopic bracket 29 is lowered. Through the electric lifting system 4, the operator can easily adjust the height of the platform.

[0084] A fall arrester 37 is installed on the diamond-shaped telescopic bracket 29. After the electric lifting device 2 is raised to the specified position, the fall arrester 37 is installed to physically lock the height of the electric lifting device 2 to prevent the electric lifting device 2 from accidentally falling and personnel from accidentally falling, thereby playing a safety protection role.

[0085] In this embodiment, the fall arrester 37 has a rod 38, and both ends of the rod 38 are fixedly connected with arc-shaped clips 39. The arc surfaces of the arc-shaped clips 39 at both ends of the rod 38 are located on the same side. After the electric lifting device 2 is raised to the specified position, the arc-shaped clips 39 at both ends of the rod 38 are clamped on the diamond-shaped telescopic bracket 29, which can avoid accidental landing.

[0086] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The combined work surface 3 has a plurality of basic table top units 40, and aisle table top units 41 are arranged between a plurality of adjacent basic table top units 40, and both ends of the aisle table top units 41 are connected to the adjacent basic table top units 40; both sides of the plurality of basic table top units 40 are provided with expansion tables 42, and the expansion tables 42 are hingedly connected to the two sides of the basic table top units 40 through a plurality of hinges. The plurality of basic table top units 40 are connected to form a combined work surface 3 through the aisle table top units 41, which is beneficial for the maintenance work of the staff. The setting of the expansion table top 42 can expand a certain space, expand the overall working area of ​​the combined work surface 3, and facilitate the maintenance personnel to move on the combined work surface 3. At the same time, the setting of the expansion table top 42 is convenient for folding, which is beneficial for the transportation and storage of the combined work surface 3.

[0087] A first table top guardrail 43 is installed at both ends of the basic table top units 40, and the bottom end of the first table top guardrail 43 is hingedly connected to the two ends of the basic table top units 40; a second table top guardrail 44 is installed on both sides of the aisle table top unit 41, and the bottom end of the second table top guardrail 44 is hingedly connected to the two sides of the aisle table top unit 41; a third table top guardrail 45 is installed on the outer edge of the expansion table 42, and the bottom end of the third table top guardrail 45 is hingedly connected to the outer edge of the expansion table 42. The first table top guardrail 43, the second table top guardrail 44 and the third table top guardrail 45 can protect the operators and are easy to fold on the basic table top unit 40, the aisle table top unit 41 or the expansion table 42, which is conducive to transportation and storage.

[0088] Angle steels 46 are fixedly connected to the outer edges of the basic table top unit 40, the aisle table top unit 41 and the extended table top 42. The bottom ends of the first table top guardrail 43, the second table top guardrail 44 and the third table top guardrail 45 are respectively hingedly connected to the angle steels 46 of the basic table top unit 40, the aisle table top unit 41 and the extended table top 42. The angle steels 46 can prevent objects dropped by maintenance personnel from falling directly to the ground, reducing safety risks.

[0089] The bottom surface of the basic table unit 40 has a storage box 47, and the top end of the diamond-shaped telescopic bracket 29 is fixedly connected to the inner top surface of the storage box 47. The diamond-shaped telescopic bracket 29 can be stored in the storage box 47. When the diamond-shaped telescopic bracket 29 is not raised, the diamond-shaped telescopic bracket 29 is completely located in the storage box 47, which effectively protects the diamond-shaped telescopic bracket 29 from being damaged.

[0090] A folding work ladder 48 is provided at one end of the combined work platform 3, and one end of the folding work ladder 48 is hingedly connected to one end of the combined work platform 3. The setting of the folding work ladder 48 is convenient for operators to climb onto the combined work platform 3, and the height can be manually adjusted as the electric lifting device 2 rises and falls.

[0091] The top groove edge of the first outer guide groove 15 has a connecting wing plate 49, which is located on the outer side of the first outer guide groove 15. A number of holes 50 are evenly opened in the axial direction of the connecting wing plate 49. Both ends of the sliding plate 28 are provided with L-shaped connecting pieces 51, and the L-shaped connecting piece 51 has a number of through long holes 52. When the sliding plate 28 is moved to a suitable position, the long holes 52 and the holes 50 are connected by bolts 22, so that the connecting wing plate 49 is connected to the L-shaped connecting piece 51, thereby realizing the locking and positioning of the electric lifting device 2 to prevent the electric lifting device 2 from sliding accidentally.

[0092] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The beneficial effects of the utility model are: the maintenance efficiency is improved. Through the electric lifting system 4, the operator can easily adjust the height of the maintenance platform. In addition, the modular construction method takes much less time than the traditional scaffolding method, making the maintenance of large transformers more efficient.

[0093] A safer working environment is provided. The platform construction in the utility model is completed at a low altitude on the adapter base 6. After the platform construction is completed, the guide base 5 is pushed in. The operators do not need to carry out high-altitude transportation and construction, which greatly reduces the work risks of the personnel and the possible harm of high-altitude transportation to the transformer equipment.

[0094] The flexibility and convenience of operation are improved. The combined design of the slide rail platform 1, the electric lifting device 2 and the combined work table 3 and the electric lifting system 4 in the utility model make the assembly and adjustment of the platform more flexible, and can be applied to large transformers of different specifications and models and different operating range requirements.

[0095] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 In the present embodiment, the first guide rail 7, the second guide rail 8, the third guide rail 11 and the fourth guide rail 12 are all composed of several sections of guide rails connected end to end. A connecting support rod 54 is fixedly connected between the connection point of the first guide rail 7 and the connection point of the second guide rail 8. The connecting support rod 54 can not only limit the distance between the first guide rail 7 and the second guide rail 8, but also connect and lock several sections of guide rails in series.

[0096] In this embodiment, a plurality of rails 10 under a large transformer are used as support, on which a modular guide base 5 is laid, and a plurality of sets of electric lifting devices 2 are pushed to a fixed position on the guide base 5 and connected to each other, and then a freely assembled combined work surface 3 is built on the electric lifting device 2, which can realize single-phase operation, two-phase operation and three-phase simultaneous operation. In addition, the combined work surface 3 can be conveniently and quickly lifted to any working position by the electric lifting system 4. A plurality of basic table units 40 are relatively narrow, which can ensure that the working surface avoids the interference position between the three phases when lifting. At the same time, after avoiding interference, a plurality of basic table units 40 can be expanded to both sides by a certain distance by the expansion table 42 to provide a larger working space.

[0097] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , the specific use method of the combined electric lifting maintenance platform for large transformers in this embodiment:

[0098] When in use, first place a plurality of rail seats 9 on a plurality of rails 10 at intervals, arrange the first guide rail 7 and the second guide rail 8 of the guide base 5 on the rail seats 9, and use the connecting support rod 54 to fix the position of the first guide rail 7 and the second guide rail 8. Next, use the first nut 24 and the second nut 25 on the adjustment foot 21 to level the first guide rail 7, the second guide rail 8, the third guide rail 11 and the fourth guide rail 12 as a whole, install the transverse positioning rod 27 on one side of the first guide rail 7 and the second guide rail 8, and then arrange the adapter base 6 to be connected with the guide base 5, and the guide base 5 is arranged; push the electric lifting device 2 from the adapter base 6 to the first guide rail 7 and the second guide rail 8, and according to the needs of the operating range, push in the corresponding number of electric lifting devices 2, use the limit rod 33 to connect the electric lifting devices 2 in pairs, and then install the electric lifting device 2. The lowering device 2 is locked on the first guide rail 7 and the second guide rail 8 by means of bolts 22, and the electric lifting device 2 is arranged; the required components of the combined work table 3 are arranged, the basic table unit 40 and the electric lifting device 2 are connected, the aisle table unit 41 is mounted between the two basic table units 40, and then the first table guardrail 43, the second table guardrail 44 and the third table guardrail 45 are installed on the table, and the combined work table 3 is arranged; during maintenance work, the electric lifting system 4 controls the electric lifting device 2 to rise to a specified height, and a fall arrester 37 is installed under the electric lifting device 2. A folding work ladder 48 is installed at one end of the basic table unit 40, and the extended table 42 of the combined work table 3 is unfolded. The unfolding method is telescopic or folding. When disassembling, the above steps can be performed in reverse.

[0099] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 In this embodiment, a method for arranging a combined electric lifting maintenance platform for a large transformer is as follows:

[0100] First, a plurality of rails 10 are vertically arranged on the bottom surface of one side of the large transformer, and then the first guide rail 7 and the second guide rail 8 are arranged on the rails 10, so that a plurality of rail holders 9 at the bottom of the first guide rail 7 and the second guide rail 8 are respectively clamped on the plurality of rails 10, so as to facilitate the adjustment of the distance between the guide base 5 and the large transformer;

[0101] Secondly, the adapter base 6 is arranged in the radial direction of the outer side of the guide base 5, and the first guide groove 17 and the second guide groove 18 on the adapter base 6 are connected to the first inner guide groove 14 and the first outer guide groove 15 on the first guide rail 7 and the second guide rail 8 through the first connecting groove 19 and the second connecting groove 20. The first outer directional wheel 30 and the first inner universal wheel 31 on the sliding plate 28 are respectively slidably connected to the first outer guide groove 15 and the first inner guide groove 14 of the first guide rail 7, and the second outer directional wheel 53 and the second inner universal wheel 32 are respectively slidably connected to the first outer guide groove 15 and the first inner guide groove 14 of the second guide rail 8, so that it is convenient to assemble the electric lifting device 2 on the adapter base 6 and then push it onto the guide base 5;

[0102] Then, the electric lifting device 2 is arranged on the guide base 5, the basic table unit 40 in the combined work table 3 is fixedly connected to the top of the diamond-shaped telescopic bracket 29 of the electric lifting device 2, and a plurality of adjacent basic table units 40 are connected through the aisle table unit 41;

[0103] Finally, the worker stands on the combined work surface 3 and drives the hydraulic pump 35 through the motor 34 in the electric lifting system 4. The hydraulic pump 35 controls the telescopic rods of several hydraulic cylinders 36 to extend and retract, so that the combined work surface 3 at the top of the diamond-shaped telescopic bracket 29 can be raised or lowered.

[0104] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A combined electric lifting maintenance platform for large transformers, characterized by: It comprises a slide rail platform (1); The slide rail platform (1) is provided with a plurality of electric lifting devices (2), and one end of the plurality of electric lifting devices (2) close to the slide rail platform (1) is slidably connected to the slide rail platform (1) and slides along the axial direction of the slide rail platform (1); A combined work surface (3) is provided at one end of the plurality of electric lifting devices (2) away from the slide rail platform (1); the combined work surface (3) is fixedly connected to one end of the plurality of electric lifting devices (2) away from the slide rail platform (1); and the plurality of electric lifting devices (2) are all equipped with an electric lifting system (4).

2. The combined electric lifting maintenance platform for large transformers according to claim 1 is characterized by: The slide rail platform (1) comprises a guide base (5) and a transfer base (6), wherein the transfer base (6) is vertically connected to the guide base (5); The guide base (5) comprises a first guide rail (7) and a second guide rail (8), the first guide rail (7) and the second guide rail (8) are parallel to each other and arranged at intervals, a plurality of rail holders (9) are arranged at the bottom of the first guide rail (7) and the second guide rail (8), the plurality of rail holders (9) are parallel to each other and evenly spaced, and the top surfaces of the plurality of rail holders (9) are respectively fixedly connected to the bottom surfaces of the first guide rail (7) and the second guide rail (8); The bottoms of the plurality of rail seats (9) are all clamped with rails (10), and the axial direction of the rails (10) is perpendicular to the axial direction of the first guide rail (7) and the second guide rail (8); The adapter base (6) comprises a third guide rail (11) and a fourth guide rail (12), wherein the third guide rail (11) and the fourth guide rail (12) are parallel to each other and arranged at intervals, and a plurality of connecting members (13) are provided at the bottom of the third guide rail (11) and the fourth guide rail (12), and the plurality of connecting members (13) are parallel to each other and fixedly connected at even intervals at the bottom of the third guide rail (11) and the fourth guide rail (12).

3. The combined electric lifting maintenance platform for large transformers according to claim 2 is characterized in that: The top surfaces of the first guide rail (7) and the second guide rail (8) are each provided with a first inner guide groove (14) and a first outer guide groove (15); the first inner guide groove (14) and the first outer guide groove (15) are parallel to each other; and a partition plate (16) is provided between the first inner guide groove (14) and the first outer guide groove (15); The top surfaces of the third guide rail (11) and the fourth guide rail (12) are respectively provided with a first guide groove (17) and a second guide groove (18); the first guide groove (17) and the second guide groove (18) are located on the same plane as the first inner guide groove (14) and the first outer guide groove (15); the first guide groove (17) and the second guide groove (18) are connected to the first inner guide groove (14) and the first outer guide groove (15) of the first guide rail (7); A first connecting groove (19) and a second connecting groove (20) are provided at one end of the first guide groove (17) and the second guide groove (18) close to the second guide rail (8), and are parallel to each other and arranged at intervals; the first connecting groove (19) and the second connecting groove (20) are coaxial with the first guide groove (17) and the second guide groove (18), respectively; one end of the first connecting groove (19) and the second connecting groove (20) are connected to the first inner guide groove (14) and the first outer guide groove (15) of the first guide rail (7); and the other end of the first connecting groove (19) and the second connecting groove (20) are connected to the first inner guide groove (14) and the first outer guide groove (15) of the second guide rail (8).

4. The combined electric lifting maintenance platform for large transformers according to claim 2 is characterized in that: A plurality of adjustment feet (21) are arranged on the outer sides of the first guide rail (7), the second guide rail (8), the third guide rail (11) and the fourth guide rail (12); the plurality of adjustment feet (21) are evenly fixedly connected to the outer sides of the first guide rail (7), the second guide rail (8), the third guide rail (11) and the fourth guide rail (12); A plurality of the adjusting legs (21) are provided with bolts (22), each of the bolts (22) having a screw rod (23), the screw rod (23) vertically penetrating the adjusting legs (21), a first nut (24) and a second nut (25) being threadedly connected to the screw rod (23), the first nut (24) abutting against the top surface of the adjusting legs (21), the second nut (25) abutting against the bottom surface of the adjusting legs (21), and a supporting leg (26) being fixedly connected to the bottom of the screw rod (23).

5. The combined electric lifting maintenance platform for large transformers according to claim 3 is characterized by: Several of the electric lifting devices (2) have a sliding plate (28), the top surface of the sliding plate (28) is fixedly connected to a rhombus-shaped telescopic bracket (29), one end of the rhombus-shaped telescopic bracket (29) is fixedly connected to the top surface of the sliding plate (28), and the other end of the rhombus-shaped telescopic bracket (29) is fixedly connected to the bottom surface of the combined work surface (3); Both sides of the sliding plate (28) are provided with a first outer directional wheel (30), a second outer directional wheel (53), a first inner universal wheel (31) and a second inner universal wheel (32); The first outer directional wheel (30) and the first inner universal wheel (31) are respectively adapted to the first outer guide groove (15) and the first inner guide groove (14) of the first guide rail (7), and the second outer directional wheel (53) and the second inner universal wheel (32) are respectively adapted to the first outer guide groove (15) and the first inner guide groove (14) of the second guide rail (8).

6. The combined electric lifting maintenance platform for large transformers according to claim 5 is characterized in that: A limiting rod (33) is provided between the sliding plates (28) of adjacent electric lifting devices (2), and both ends of the limiting rod (33) are detachably connected between the sliding plates (28) of adjacent electric lifting devices (2).

7. The combined electric lifting maintenance platform for large transformers according to claim 5 is characterized by: The electric lifting system (4) comprises a motor (34), the output shaft of the motor (34) is connected to a hydraulic pump (35), and the motor (34) and the hydraulic pump (35) are both fixedly connected to the top surface of the sliding plate (28); The rhombus-shaped telescopic bracket (29) is equipped with a plurality of hydraulic cylinders (36), and the rod chamber oil inlets and rodless chamber oil inlets on the plurality of hydraulic cylinders (36) are connected to the hydraulic pump (35) via high-pressure pipes.

8. The combined electric lifting maintenance platform for large transformers according to claim 1 is characterized by: The combined work surface (3) comprises a plurality of basic surface units (40), and aisle surface units (41) are arranged between a plurality of adjacent basic surface units (40), and both ends of the aisle surface units (41) are connected to adjacent basic surface units (40); Both sides of the plurality of basic table top units (40) are provided with expansion table tops (42), and the expansion table tops (42) are hingedly connected to the two sides of the basic table top units (40) through a plurality of hinges.

9. The combined electric lifting maintenance platform for large transformers according to claim 8 is characterized by: Both ends of the plurality of basic table top units (40) are provided with first table top guardrails (43), and the bottom ends of the first table top guardrails (43) are hingedly connected to the two ends of the plurality of basic table top units (40); Second countertop guardrails (44) are installed on both sides of the aisle countertop unit (41), and the bottom ends of the second countertop guardrails (44) are hingedly connected to the two sides of the aisle countertop unit (41); A third table top guardrail (45) is installed on the outer side edge of the expansion table top (42), and the bottom end of the third table top guardrail (45) is hingedly connected to the outer side edge of the expansion table top (42).

10. The combined electric lifting maintenance platform for large transformers according to claim 1, characterized in that: A folding work ladder (48) is provided at one end of the combined work surface (3), and one end of the folding work ladder (48) is hingedly connected to one end of the combined work surface (3).

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