Multifunctional modular bearing installation platform for transformer substation and working method

Abstract

The invention discloses a multifunctional modularized bearing installation platform for a transformer substation and a working method. The platform comprises a movable base body, a lifting mechanism, a fork body supporting system and an electrical control system. The movable base body adopts a Z-shaped main frame, and the bottom of the movable base body is provided with a self-locking movable wheel set and an adjustable anti-inclination fixed insertion plate; the lifting mechanism comprises a double-layer track stand column, an electric hydraulic driving unit, a chain wheel transmission mechanism and a mechanical anti-falling mechanism. The fork body supporting system is connected with the stand column through the tackle, and a claw fork plate at the bottom of the tackle can be provided with various functional accessories. The electrical control system supports wireless linkage and multiple safety protection. The mounting method comprises the steps of platform positioning, stand column assembling, accessory mounting, equipment bearing, lifting control, safe operation and resetting. The device is high in safety, high in environmental adaptability, high in efficiency, diversified in function and capable of being adapted to installation operation of equipment within 1.5 tons of a transformer substation and within the height of 2 meters.

Description

Technical Field

[0001] This invention relates to the field of substation equipment installation technology, and in particular to a multifunctional modular load-bearing installation platform and its working method for substations. Background Technology

[0002] During the installation and maintenance of substation equipment, it is often necessary to lift (within 2 meters) and position medium-weight (approximately 1.5 tons) equipment components such as transformer oil tanks, instrument transformer bushings, switch shear arms, and busbars. Currently, cranes or forklifts are commonly used for lifting, and then sleepers are placed under the components to create working space. This method has significant drawbacks: First, the substation equipment installation area is complex and confined, often making it impossible for large cranes and forklifts to enter or operate. Second, even if they could be used, according to Article 22.1.11 of the "Power Safety Work Regulations of China Southern Power Grid Co., Ltd.", personnel are strictly prohibited from lingering under the crane boom and lifting components, yet installation work must be carried out by personnel below, posing serious safety hazards and the risk of falls from height. This results in the current installation method being inefficient, high-risk, and complex.

[0003] While general-purpose lifting platforms or forklifts exist, their structures are bulky and inflexible, lacking specific designs for the equipment and environment of substations. They cannot simultaneously address space constraints, safety compliance, and multi-functional equipment support. Therefore, there is an urgent need for a modular and safe load-bearing installation platform specifically designed for substation environments. Summary of the Invention

[0004] The purpose of this invention is to provide a multifunctional modular load-bearing installation platform and its working method for substations, aiming to solve the technical problems of substation equipment installation that existing installation equipment cannot fully address.

[0005] To address the aforementioned problems, according to one aspect of this application, an embodiment of the present invention provides a multifunctional modular load-bearing installation platform for substations, comprising:

[0006] The mobile base includes a Z-shaped main frame, and the bottom of the main frame is provided with a set of moving wheels and an adjustable anti-tilt fixing plate;

[0007] The lifting mechanism includes a double-layer track column vertically fixed to the movable base, an electro-hydraulic drive unit, a sprocket transmission mechanism, and a mechanical anti-fall mechanism; the electro-hydraulic drive unit is fixed to the movable base, and its output end is connected to the sprocket transmission mechanism; the sprocket transmission mechanism is used to drive the trolley inside the double-layer track column to move.

[0008] The fork support system includes a trolley slidably connected to the double-layer track column and a fork plate with a swivel at the bottom of the trolley, the fork plate having pre-drilled holes for mounting functional accessories;

[0009] An electrical control system, integrated on the mobile base, includes a power module, a main control module, a wireless communication module, and a hydraulic drive module; the main control module is configured to receive wireless commands through the wireless communication module and control the hydraulic drive module to drive the spur fork plate to move.

[0010] In some embodiments, the movable wheel set includes two omnidirectional wheels with self-locking braking devices located at the front end of the main frame and two roller-type pressure wheels located at the rear end.

[0011] In some embodiments, the number of anti-tilt fixing plates is at least two, and side insertion holes are provided on both sides of the main frame. The anti-tilt fixing plates are provided with side insertion parts, which are inserted into the side insertion holes. Angle iron stakes are detachably provided on the anti-tilt fixing plates.

[0012] In some embodiments, the double-layer track column is composed of a long column and a short column connected by a quick-connect mechanism. The side walls of the long column and the short column are provided with vertically extending guide grooves. The trolley includes a support frame and sliding wheels arranged at the four corners of the support frame. The support frame is provided with a connecting part that extends out of the double-layer track column through the guide groove. The connecting part is connected to the ram's horn plate.

[0013] In some embodiments, the sprocket drive mechanism includes a shaft, two gear discs passing through both ends of the shaft, and two chains meshing with the two gear discs respectively; the output end of the electro-hydraulic drive unit is connected to the shaft, and both ends of each chain are connected to the double-layer track column and the trolley respectively.

[0014] In some embodiments, the mechanical fall arrest mechanism is integrated inside the double-layer track column and employs a mechanical locking system that allows for unobstructed ascent but requires active triggering for unlocking during descent.

[0015] In some embodiments, the spur plate is connected to the trolley via a brake shaft, enabling the spur plate to be angle-adjustable.

[0016] In some embodiments, the functional accessories include at least one of a V-shaped auxiliary placement mechanism, a U-shaped auxiliary placement mechanism, a L-shaped auxiliary placement accessory, and a placement plate, which are connected to pre-drilled holes on the fork plate via bolts; the V-shaped auxiliary placement mechanism is used for placing components such as barrels, round items, and conduits; the U-shaped auxiliary placement mechanism is used for supporting long strip-shaped components; the L-shaped auxiliary placement accessory is used for hoisting and fixing equipment components; the placement plate has a non-slip surface and is equipped with adjustable partitions.

[0017] In some embodiments, the power supply module of the electrical control system is a 24V DC power supply, provided by an AC converter or a lithium battery; the control system supports a wireless linkage operation mode in which one host controls N slave devices, and integrates overload self-locking protection, power failure protection and emergency stop functions; it also includes power display, drive warning, fall protection, safety protection circuit and redundant communication link.

[0018] The invention also provides a method for installing equipment in a substation, employing the multifunctional modular load-bearing installation platform described above, including the following steps:

[0019] S1: Move the platform to the work point, lower and adjust the anti-tilt fixing plate to make it close to the ground, and lock the moving wheel set;

[0020] S2: Assemble the double-layer track column using a quick-connect mechanism according to the installation height requirements;

[0021] S3: Select the appropriate functional accessories according to the shape of the equipment to be installed and install them onto the forklift plate;

[0022] S4: Place the equipment components onto the installed functional accessories;

[0023] S5: The operator controls the lifting mechanism to rise via wireless remote control, smoothly raising the equipment to the predetermined height, and the mechanical anti-fall mechanism automatically locks.

[0024] S6: Personnel are performing equipment installation work in a safe area;

[0025] S7: After the operation is completed, the operator triggers the descent command, and the platform descends smoothly to the initial position.

[0026] Compared with the prior art, the multifunctional modular load-bearing installation platform for substations of the present invention has at least the following beneficial effects:

[0027] Extremely high safety: Through the integrated design of mechanical fall protection mechanism, anti-tilt insert and low voltage control system, the risk of personnel working under the crane arm is completely eliminated, which complies with safety regulations.

[0028] Good environmental adaptability: The combination of compact Z-shaped structure, high-performance casters and load-bearing wheels enables it to move flexibly and operate stably in the narrow and uneven environment of substations.

[0029] Significantly improved efficiency: Modular design supports quick assembly and disassembly (within 30 minutes), multi-functional accessories can be quickly adapted to various devices, and wireless linkage control reduces manpower and time costs.

[0030] Multifunctional: By replacing different functional accessories, it can support and fix most medium-weight irregularly shaped equipment parts in substations, making it highly versatile.

[0031] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a structural schematic diagram of a multifunctional modular load-bearing installation platform for a substation provided in an embodiment of the present invention;

[0034] Figure 2 A schematic diagram of the lifting mechanism of a multi-functional modular load-bearing installation platform for a substation provided in an embodiment of the present invention;

[0035] Figure 3 A structural schematic diagram from another perspective of the multifunctional modular load-bearing installation platform for substations provided in an embodiment of the present invention;

[0036] Figure 4 A schematic diagram of the structure of the multi-functional modular load-bearing installation platform for substations provided in this embodiment of the invention, when using a figure-7 shaped auxiliary placement of accessories for hoisting;

[0037] Figure 5 This is a schematic diagram of the trolley structure of a multifunctional modular load-bearing installation platform for a substation, provided in an embodiment of the present invention.

[0038] Explanation of reference numerals in the attached figures:

[0039] 110. Main frame; 120. Casters; 130. Bearing rollers; 140. Anti-tilt fixing plate; 141. Angle iron stakes; 150. Handle mechanism; 211. Long column; 212. Short column; 22. Electro-hydraulic drive unit; 221. Output end; 231. Rotating shaft; 232. Gear disk; 233. Chain; 310. Trolley; 3101. Support frame; 3102. Sliding wheel; 3103. Connecting part; 320. Fork plate; 330. V-shaped auxiliary placement mechanism; 350. 7-shaped auxiliary placement accessory; 370. Fastening kit; 4. Electrical control system. Detailed Implementation

[0040] To further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the specific embodiments, structures, features, and effects according to the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments. In the following description, different "an embodiment" or "an embodiment" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0041] In the description of this invention, it should be clearly stated that the terms "first," "second," etc., in the specification, claims, and accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence; the terms "vertical," "lateral," "longitudinal," "front," "rear," "left," "right," "up," "down," "horizontal," etc., indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, and are merely for the convenience of describing this invention, and do not mean that the device or element referred to must have a specific orientation or position, and therefore should not be construed as a limitation of this invention.

[0042] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] like Figures 1-5 As shown, this embodiment of the invention provides a multifunctional modular load-bearing installation platform for substations, comprising:

[0044] The mobile base includes a Z-shaped main frame 110, and the bottom of the main frame 110 is provided with a set of moving wheels and an adjustable anti-tilt fixing plate 140.

[0045] The lifting mechanism includes a double-layer track column vertically fixed to the movable base, an electro-hydraulic drive unit 22, a sprocket transmission mechanism, and a mechanical anti-fall mechanism; the electro-hydraulic drive unit 22 is fixed to the movable base, and its output end 221 is connected to the sprocket transmission mechanism, and the output end 221 extends and retracts vertically; the sprocket transmission mechanism is used to drive the trolley 310 inside the double-layer track column to move.

[0046] The fork support system includes a trolley 310 slidably connected to the double-layer track column and a fork plate 320 provided at the bottom of the trolley 310. The fork plate 320 is provided with pre-drilled holes for installing functional accessories.

[0047] The electrical control system 4 is integrated on the mobile base and includes a power module, a main control module, a wireless communication module, and a hydraulic drive module. The main control module is configured to receive wireless commands through the wireless communication module and control the hydraulic drive module to drive the yoke plate 320 to move.

[0048] This embodiment describes a multi-functional modular load-bearing installation platform for substations, specifically developed to solve the installation challenges of medium-weight equipment in substations. It is suitable for installation operations within 2 meters of equipment weighing up to 1.5 tons, such as transformer oil tanks, instrument transformer porcelain bushings, switch shear arms, and busbars. The core consists of a mobile base, a lifting mechanism, a fork support system, and an electrical control system working together to perfectly fit the complex and confined working environment of substations.

[0049] The mobile base is centered on a Z-shaped main frame 110, welded from high-quality steel. With a maximum outward expansion of 1.2 meters × 1 meter, it ensures both load-bearing strength and maneuverability within equipment gaps, avoiding the inaccessibility issues of traditional cranes and forklifts. The main frame 110 is equipped with wheels at its bottom, which, together with the front handle mechanism 150, enable flexible movement. It also features at least two hinged anti-tilt fixing plates 140, whose insertion angle and depth can be adjusted according to ground flatness, providing stable support by closely adhering to the ground during operation.

[0050] The lifting mechanism is vertically fixed to the main frame 110 and includes double-layer track columns, an electro-hydraulic drive unit 22, a sprocket transmission mechanism, and a mechanical fall arrest mechanism. The double-layer track columns are composed of a 1.6-meter long column 211 and a 0.9-meter short column 212, which are quickly snapped together and can be assembled by a single person in 1-2 minutes. The electro-hydraulic drive unit 22 uses a 24V power supply and can be powered by mains power or a lithium battery. It is fixed by a 90° ring clamp, and the output end 221 is connected to the sprocket transmission mechanism's chain shaft via an M27 thread. The sprocket transmission mechanism includes a pair of 78mm outer diameter rotating gear discs and a 27mm center distance chain, which can smoothly transmit power. The mechanical fall arrest mechanism is integrated into the column, allowing for unobstructed ascent but requiring unlocking for descent, and automatically locking to prevent falling after reaching the designated position.

[0051] The fork support system is connected to the column slide rail via the trolley 310. The bottom horn fork plate 320 of the trolley 310 can be adjusted in angle via the brake shaft. The pre-drilled holes on the plate can be used to install V-shaped auxiliary placement mechanism 330, U-shaped auxiliary placement mechanism, 7-shaped auxiliary placement accessory 350 or storage plate, respectively adapted to the storage of round, long, and irregularly shaped equipment and tools.

[0052] The electrical control system 4 is integrated into the mobile base, powered by 24V DC, and includes power supply, main control, wireless communication, and hydraulic drive modules. The main control module receives commands via a wireless remote control within 10 meters and supports "master + N slave" linkage; it also includes overload self-locking, power failure protection, emergency stop functions, and redundant communication links, and can withstand automatic power failure of over 1.5 tons. In the event of a sudden power failure, it works in conjunction with the fall arrest mechanism to lock the equipment.

[0053] When the platform is in operation, first push the platform to the work point using the handle mechanism 150, lock the wheels and adjust the anti-tilt fixing plate 140 to be in contact with the ground; assemble the double-layer track column according to the installation height and install the matching accessories; place the equipment on the accessories, and the personnel retreat to the safe area. Control the electric hydraulic drive unit 22 to drive the chain drive mechanism to operate, and the chain drives the trolley 310 and the equipment to rise smoothly with a lifting accuracy of ≤5mm. After reaching the position, the mechanical anti-fall mechanism locks; the personnel complete the installation preparation in the safe area, and after the operation, unlock the anti-fall mechanism to lower the equipment, disassemble the accessories and columns, and then transfer the platform.

[0054] This platform can solve the problems of traditional equipment being unable to enter confined spaces and personnel operating in violation of regulations. Assembly can be completed within 30 minutes, saving 70% of the operation time compared to traditional solutions, improving installation accuracy, reducing the risk of equipment failure, and fully complying with the requirements of the "Power Safety Work Regulations of China Southern Power Grid Co., Ltd.", thus helping to standardize and improve the efficiency of substation installation operations.

[0055] In some embodiments, the movable wheel set includes two omnidirectional wheels 120 with self-locking braking devices disposed at the front end of the main frame 110 and two roller-type pressure wheels 130 disposed at the rear end.

[0056] In this embodiment, the mobile wheel set of the multi-functional modular load-bearing installation platform for substations is the key to ensuring the flexible movement and stable operation of the equipment. The front end of the main frame 110 is equipped with two universal wheels 120 with self-locking braking devices, and the rear end is equipped with two roller-type pressure-bearing wheels 130. Through the coordinated function of the front and rear wheel sets, it can adapt to the working environment of substations with limited space and complex terrain.

[0057] The front casters 120 are made of high-strength, wear-resistant material with a φ180×50 specification, providing excellent free steering capability. They can smoothly navigate the narrow 1.5-meter-wide passage between transformers and switchgear with slight angle adjustments. Each caster 120 integrates a mechanical self-locking brake device, which can be quickly locked by stepping on it to prevent platform displacement during operation. The rear roller-type load-bearing rollers 130 are φ80×50, also made of high-load-bearing, wear-resistant material. The roller structure provides excellent anti-bump capability, allowing it to smoothly cross the 5-10cm high edge of cable trenches within substations, avoiding severe shaking during platform movement. The support system formed by the front and rear wheel sets has a load-bearing capacity exceeding 2 tons, fully meeting the movement and operation needs of equipment weighing up to 1.5 tons.

[0058] During platform operation, workers push the platform using the handle mechanism 150 during the transfer phase. The casters 120 flexibly adjust the direction. Even if there are slight bumps on the ground or cable trench covers, the pressure-bearing wheels 130 can reduce bumps and prevent tools and accessories from falling off the platform. After reaching the work point, the self-locking braking device of the casters 120 is operated to lock them completely. Together with the anti-tilt fixing plate 140, a three-point stable structure of "front wheel locking + plate support + rear wheel pressure" is formed. Even when bearing a 1.5-ton instrument transformer porcelain bushing or transformer oil tank, it can ensure that the platform does not slip or tilt, providing a stable foundation for high-altitude operations. For example, when installing the jacking, it can resist the horizontal thrust generated by the jacking connection and avoid platform displacement that would cause connection deviation.

[0059] After the work is completed, simply unlock the self-locking brake device of the caster wheels 120, and the platform can be easily moved to the next work point or storage area via the handle mechanism 150. No additional crane or forklift assistance is required, significantly saving equipment transfer time. This wheel set design eliminates the need for a complex drive system; movement can be achieved simply by manual pushing, making operation simple and convenient. It also distributes the weight of the platform and equipment, reducing wear on individual wheels and extending their service life, effectively solving the problems of difficult equipment movement and poor terrain adaptability in traditional substation installations.

[0060] In some embodiments, the number of anti-tilt fixing plates 140 is at least two, and side insertion holes are provided on both sides of the main frame 110. The anti-tilt fixing plates 140 are provided with side insertion parts, which are inserted into the side insertion holes. Angle iron stakes 141 are detachably provided on the anti-tilt fixing plates 140.

[0061] In this embodiment, the anti-tilt fixing plate 140 of the multi-functional modular load-bearing installation platform for substations is a core safety component that ensures the stability of the platform operation. At least two plates are configured. Side insertion holes are provided on both sides of the main frame 110. The anti-tilt fixing plate 140 is provided with a side insertion part, which is inserted into the side insertion hole. The anti-tilt fixing plate 140 is detachably provided with an angle iron stake 141, which can be inserted into the ground. The insertion angle and depth can be flexibly adjusted relative to the ground, which can effectively resist the tilting moment generated when the platform is carrying heavy objects and prevent the platform from tipping over.

[0062] The anti-tilt fixing plate 140 is made of high-strength steel plate by CNC cutting and bending, which has sufficient rigidity and is not easy to bend even when bearing the lateral pressure generated by 1.5 tons of equipment. The insertion end is sharpened to facilitate insertion on different ground materials such as cement, gravel, and soil. The surface is also marked with scale marks to help operators judge the insertion depth and ensure consistent support of each plate.

[0063] During platform operation, after the positioning phase and locking of the moving wheel set, the operator needs to adjust the insert plate according to the ground conditions: When the ground is flat, such as in the indoor equipment area of ​​a substation, adjust the insert plate to a 45-60 degree angle with the ground and insert it to a depth of 5-10cm to limit the horizontal displacement of the platform in conjunction with the moving wheel set; when the ground is sloping, such as in the outdoor equipment area, if the platform is on the uphill side, adjust the angle of the insert plate closer to the uphill direction to 30-45 degrees and increase the insertion depth to 10-15cm to enhance the pulling effect and prevent the platform from sliding down; when the ground is gravel or soil, adjust the insert plate to a 60-75 degree angle and use the sharp end to embed into the solid soil layer or gravel gaps to form a firm support.

[0064] When the load-bearing equipment is being raised or lowered, if the center of gravity of the transformer oil conservator tends to tilt laterally due to placement deviation, the contact point between the insert plate and the ground will generate a reverse support force to counteract the tilting torque and ensure the vertical stability of the platform. When the operators adjust the connection position of the pipe busbar, the insert plate can resist the horizontal thrust to prevent the platform from shifting. If there is a local depression in the ground that causes the wheel set support to be unstable, the angle and depth of the insert plate can be adjusted to fill the gap. If there is a protrusion, the angle can be adjusted to avoid it, and a flat area can be selected for insertion.

[0065] The insert plate is easy to operate, requiring no complicated tools; the angle and depth can be set manually. Together with the moving wheel set, it forms a dual stability guarantee of "wheel set positioning + insert plate anti-tipping". Even if the platform bears extreme weight or encounters unexpected external forces, it can effectively prevent tipping and completely eliminate the risk of equipment falling or personnel injury, providing safety support for substation equipment installation operations.

[0066] In some embodiments, the double-layer track column is composed of a long column 211 and a short column 212 connected by a quick-connect mechanism. The side walls of the long column 211 and the short column 212 are provided with vertically extending guide grooves. The trolley 310 includes a support frame 3101 and sliding wheels 3102 disposed at the four corners of the support frame 3101. The support frame 3101 is provided with a connecting part 3103 extending out of the double-layer track column through the guide groove. The connecting part 3103 is connected to the ram's horn plate 320.

[0067] In this embodiment, the double-layer track column of the multi-functional modular load-bearing installation platform for substations adopts a split design, consisting of a long column 211 and a short column 212 connected by a quick-connect mechanism. This design can meet the installation height requirements of different equipment while also taking into account the platform's portability and assembly efficiency. The long column 211 and the short column 212 have guide grooves on their side walls. The trolley 310 includes a support frame 3101 and sliding wheels 3102 located at the four corners of the support frame 3101. The support frame 3101 is provided with a connecting part 3103 extending out of the double-layer track column via the guide groove. The connecting part 3103 is connected to the yoke plate 320.

[0068] The long column 211 is 1.6 meters long, and the short column 212 is 0.9 meters long. Both are welded from high-strength steel and have internal reinforcing ribs and slide rails, capable of withstanding the vertical load and lateral force during the lifting of a 1.5-ton device. The quick-connect mechanism consists of a protruding locking block at the lower end of the short column 212 and a locking groove with a spring-loaded locking tongue at the upper end of the long column 211. After insertion, the spring-loaded locking tongue automatically pops out and locks; pressing the unlock button separates them. Height markings are located on the outside of the columns to help operators determine the total height after assembly, ensuring it meets equipment installation requirements.

[0069] When the platform is running, the assembly method should be selected according to the lifting height of the equipment before operation: When the equipment needs to be lifted within 1.6 meters, such as when installing the current transformer porcelain bushing, a height of 1.2 meters is required, the long column 211 is fixed to the main frame 110 of the moving base by bolts, reducing the assembly steps; When the equipment needs to be lifted more than 1.6 meters, such as when installing the pipe nut, a height of 2 meters is required, the locking block of the short column 212 is aligned with the locking slot of the long column 211 and inserted. A "click" sound indicates that the locking is complete. It can be operated by one person in 1-2 minutes without complicated tools.

[0070] After the column is assembled, the internal slide rail provides a stable movement path for the sprocket drive mechanism of the lifting mechanism and the trolley 310 of the fork support system. When the electro-hydraulic drive unit 22 drives the sprocket drive mechanism, the chain rises and falls smoothly along the slide rail, and the trolley 310 moves synchronously, ensuring that the equipment rises and falls without shaking, with an accuracy error of ≤5mm. This avoids equipment offset and collision during installation, such as when raising the transformer oil tank, allowing for precise alignment with the transformer body.

[0071] After the work is completed, press the unlock button to separate the long column 211 and the short column 212, remove the columns from the mobile base, and store or transport them together with the functional accessories and remote control. The disassembled columns are only 1.6 meters and 0.9 meters long, respectively, and are compact in size, so they can be placed in a substation tool cart or storage room. The placement angle can be flexibly adjusted when passing through narrow passages or elevators, without the need to coordinate with large transportation equipment, making them suitable for relocation to multiple work sites.

[0072] The column allows for flexible combination of long and short columns, enabling height adjustments from 0.9 meters to 2.5 meters, fully covering lifting needs within 2 meters. The quick-connect mechanism allows the platform to be fully assembled within 30 minutes, saving 70% of assembly time compared to traditional equipment. The high-strength structure and precise slide rail design ensure stable and accurate installation, providing convenience for platform storage and transportation.

[0073] In some embodiments, the sprocket drive mechanism includes a shaft 231, two gear discs 232 passing through both ends of the shaft 231, and two chains 233 meshing with the two gear discs 232 respectively; the output end 221 of the electro-hydraulic drive unit 22 is connected to the shaft 231, and both ends of each chain 233 are connected to the double-layer track column and the trolley 310 respectively.

[0074] In this embodiment, the sprocket drive mechanism of the multi-functional modular load-bearing installation platform for substations is a key power transmission component connecting the electro-hydraulic drive unit 22 and the fork support system. It consists of a rotating shaft 231, two gear discs 232 passing through both ends of the rotating shaft 231, and two chains 233 meshing with the two gear discs 232 respectively. The output end 221 of the electro-hydraulic drive unit 22 is connected to the rotating shaft 231, and the two ends of each chain 233 are connected to the double-layer track column and the trolley 310 respectively. The output end 221 of the electro-hydraulic drive unit 22 is connected to the lower end of the rotating shaft 231, which can smoothly convert linear power into lifting motion, ensuring that the equipment can be lifted and lowered smoothly and accurately within a height of 2 meters.

[0075] The gear disc 232 is precision-machined from high-strength alloy material, with an outer diameter of 78mm. Its involute tooth design ensures tight, gapless meshing with the chain 233, reducing power loss and noise. Two gear discs 232 are symmetrically mounted at both ends of a 650mm long, 540mm center-to-center distance shaft 231. The shaft 231 is connected to the double-layer track column via bearings, ensuring smooth, uninterrupted rotation. The chain 233 is a high-strength roller chain with a center-to-center distance of 27mm, a width of 32mm, and an effective length exceeding 1.3 meters. Wear-resistant grease is filled between the rollers and sleeves to extend service life. One end of the chain 233 is fixed to the trolley 310, and the other end is connected to the bottom of the column via a tensioning device to ensure constant tension and prevent transmission slack. One gear disc 232 meshes with one chain 233. The output end 221 of the electro-hydraulic drive unit 22 is connected to the lower end of the shaft 231 and located between the two gear discs 232.

[0076] When the platform is running, during the power input phase, after the electric hydraulic drive unit 22 is started, the piston rod (output end 221) moves linearly, driving the rotating shaft 231 to move, which in turn causes the symmetrical gear disk 232 to rotate synchronously. The dual-wheel design makes the chain 233 evenly stressed, avoids uneven wear and improves transmission efficiency, and ensures that there is no power delay.

[0077] During the power transmission stage, the gear disk and chain 233 mesh precisely, and the rotational motion is converted into the linear lifting and lowering of chain 233 along the slide rail without slippage. The lifting and lowering speed is controllable. For example, when lifting the transformer oil tank, the speed can be controlled by adjusting the output power of the drive unit to prevent the oil tank from shaking and colliding. The tensioning device automatically compensates for the chain elongation to maintain transmission stability and prevent lifting and lowering jerks.

[0078] After the equipment is raised to the predetermined height, the drive unit stops, the sprocket transmission mechanism stops moving, the mechanical anti-fall mechanism locks the slip trolley 310, and the chain remains stationary to ensure the equipment stays stable. When installing the nut, it can be stably supported at a height of 1.8 meters to facilitate the connection of bolts.

[0079] During the equipment descent phase, the drive unit reverses its action, the shaft 231 and the gear disc rotate in opposite directions, and the chain drives the trolley 310 and the equipment to descend slowly. The meshing is tight and the speed is controllable, preventing fragile equipment such as the transformer porcelain sleeve from being damaged by impact.

[0080] The mechanism has a simple structure, and operators only need to periodically check the chain tension and lubrication; the high-strength materials extend the service life and reduce maintenance costs; the lifting accuracy error is ≤5mm, which meets the high precision requirements of substation equipment installation.

[0081] In some embodiments, the mechanical fall arrest mechanism is integrated inside the double-layer track column, and adopts a mechanical locking principle that allows for unobstructed ascent but requires active triggering for unlocking during descent.

[0082] The mechanical fall arrest mechanism of the multi-functional modular load-bearing installation platform used in this embodiment is a core protective component to ensure the safety of high-altitude operations. It is integrated inside the double-layer track column and adopts the mechanical locking principle of "unobstructed ascent and active triggering for unlocking during descent". It does not rely on electricity or hydraulics and achieves fall arrest only through a purely mechanical structure, eliminating the risk of falling caused by electrical faults or hydraulic failures.

[0083] The mechanical anti-fall mechanism consists of a brake block, a spring assembly, an unlocking lever, and a triggering device, all integrated inside the column next to the slide rail, occupying no external space and not affecting the lifting and lowering of the trolley 310. The brake block is made of high-strength wear-resistant alloy with anti-slip texture on the surface, allowing it to fit tightly against the brake groove on the side of the trolley 310, generating sufficient friction to prevent slippage; the spring assembly provides continuous preload to the brake block, ensuring it always tends to move towards the trolley 310; one end of the unlocking lever is connected to the brake block, and the other end extends to the outside of the column, linked to the unlocking command of the electrical control system 4; the triggering device is mounted on the trolley 310 and moves synchronously with the trolley 310.

[0084] During platform operation, during the equipment's upward phase, the electro-hydraulic drive unit 22 drives the chain to move the trolley 310 upward. The trigger device contacts the brake block, overcoming the spring preload and pushing the brake block away from the trolley 310. The trolley 310 can then rise without obstruction. For example, it can lift a 1.5-ton transformer oil tank to a height of 2 meters. The process requires no manual intervention and is smooth and efficient.

[0085] After the equipment is raised to the predetermined height, the operator issues a stop command, the drive unit stops, the trolley 310 comes to a stop, the trigger device separates from the brake block, and the spring pushes the brake block to reset and fit into the brake groove, forming a mechanical lock. Even in the event of a sudden power failure, hydraulic leakage, or chain breakage, the friction force can lock the trolley 310 to prevent the equipment from falling. If there is a sudden power failure when installing the gantry, the gantry can be kept at a height of 1.8 meters to avoid damage or injury, which complies with the "Power Safety Work Regulations of China Southern Power Grid Co., Ltd".

[0086] When the equipment needs to be lowered, the operator issues a descent command, and the electrical control system 4-control unlocking lever pulls the brake block to overcome the spring force and separate from the trolley 310 to complete the unlocking. The drive unit then rotates in the opposite direction to drive the descent. In case of emergency, such as equipment deviation, a stop command can be issued to stop the machine. The unlocking lever resets, and the brake block immediately locks the trolley 310. The machine can be paused at any time, such as when cleaning the porcelain bushing of the current transformer.

[0087] The mechanism has a compact structure, making it suitable for the confined spaces of substations; the brake blocks are wear-resistant and durable, and maintenance only requires checking the spring preload and wear, providing absolute safety for high-altitude operations during substation equipment installation.

[0088] In some embodiments, the fork plate 320 is connected to the trolley 310 via a brake shaft, enabling the fork plate 320 to be angle-adjustable.

[0089] In this embodiment, the yoke fork plate 320 of the multi-functional modular load-bearing installation platform for substations is connected to the trolley 310 via a brake shaft. The angle can be flexibly adjusted, and the support angle can be adjusted according to different shapes of equipment such as transformer oil tanks, instrument transformer porcelain bushings, and switch shear arms to ensure that the equipment is tightly fitted to the fork plate and the force is evenly distributed, thus preventing the equipment from slipping or being damaged.

[0090] The 320 fork plate is made of high-strength steel and is cut and welded into a "ram's horn" shape. The length and width of the fork arm meet the requirements for stable support, and the surface is treated with anti-slip treatment to increase friction. The brake shaft is made of high-strength alloy and runs through the connection between the fork plate and the trolley 310. Both ends are equipped with locking nuts and 0-90 degree angle adjustment dials for convenient and precise angle adjustment. The brake shaft has a built-in ratchet and pawl mechanism that automatically locks after being adjusted to the target angle. Pressing the unlock button allows for fine adjustment to prevent angle changes under load.

[0091] During the platform operation and equipment support preparation phase, the angles need to be adjusted according to the shape of the equipment: when installing a circular transformer oil conservator, adjust to 45-60 degrees, so that the fork arm forms a "V" shape support, fits against the arc surface of the oil conservator, ensures that the center of gravity is in the center of the support, and prevents rolling; when installing a rectangular switch scissor arm, adjust to 90 degrees to keep it horizontal and provide a flat support surface, which facilitates the connection and adjustment of the scissor arm; when installing a conical current transformer porcelain bushing, adjust to 30-45 degrees, using the inclined surface of the fork arm to fit against the side of the porcelain bushing, and with anti-slip treatment to prevent slippage.

[0092] After the equipment is placed, the adaptive angle greatly increases the contact area, and the uniformity of force distribution is improved by 60% compared with traditional planar support. When placing a slightly bent pipe, the angle can be finely adjusted to make the fork plate fit the bent part, preventing excessive local force and deformation. When placing an oil tank, the "V"-shaped support resists the lateral force of lifting and lowering, preventing the oil tank from shifting.

[0093] During the equipment lifting and installation phases, the ratchet and pawl mechanism maintains a fixed angle. For example, when the current transformer porcelain bushing is raised to a height of 1.5 meters, even if the ground is bumpy, the angle of the fork plate remains unchanged, and the porcelain bushing fits without tilting. When personnel adjust the wiring of the porcelain bushing, the fork plate provides stable support to resist horizontal thrust and prevent the porcelain bushing from shifting and affecting accuracy.

[0094] After the work is completed, adjusting the angle of the forklift can reduce the platform's size, facilitating movement in narrow passages; after removing the equipment, it can be stored vertically to save space. The design is simple to operate, with a dial for precise angle adjustment and unlocking / locking requiring only the press of a button; the high-strength materials can withstand a weight of 1.5 tons for extended periods, significantly improving the platform's versatility and eliminating the need for separately designed forklifts for different equipment.

[0095] In some embodiments, the functional accessories include at least one of a V-shaped auxiliary placement mechanism 330, a U-shaped auxiliary placement mechanism, a L-shaped auxiliary placement accessory 350, and a placement plate, which are connected to pre-drilled holes on the ram's horn plate 320 by bolts; the V-shaped auxiliary placement mechanism 330 is used for placing components such as barrels, round items, and conduits; the U-shaped auxiliary placement mechanism is used for supporting long strip-shaped components; the L-shaped auxiliary placement accessory 350 is used for hoisting and fixing equipment components; the placement plate has a non-slip surface and is equipped with adjustable partitions.

[0096] The functional accessories of the multi-functional modular load-bearing installation platform for substations in this embodiment include V-shaped auxiliary placement mechanism 330, U-shaped auxiliary placement mechanism, 7-shaped auxiliary placement accessory 350 and placement plate. They are connected to the pre-drilled holes on the yoke plate 320 by bolts. They can be flexibly replaced according to the different equipment installation requirements of the substation, and can fully adapt to barrel-shaped parts, long strip parts, irregularly shaped equipment and small tools.

[0097] The V-shaped auxiliary placement mechanism 330 is made of high-strength steel plate by CNC bending, forming a "V" shape with a 60-degree angle. It features an inner rubber anti-slip pad to increase friction, and is suitable for barrel-shaped components with diameters of 300-500mm, such as insulating oil drums, or round equipment like small conduits. Mounting holes are provided on both sides for quick fixation to the fork plate 320 using M12 bolts. The U-shaped auxiliary placement mechanism is made of high-strength steel, with a 200mm wide "U"-shaped groove. Wear-resistant pads are placed inside the groove to prevent wear on long, strip-shaped components such as pipe fittings and busbars. Reinforcing ribs at both ends enhance load-bearing capacity. The mounting holes precisely match the pre-drilled holes on the fork plate 320 for easy and rapid assembly. The 7-shaped auxiliary placement accessory 350 consists of a vertical section and a horizontal section. The vertical section is bolted to the fork plate 320, while the horizontal section has an adjustable clamping device at the end, allowing for adjustment of the clamping force according to equipment size. It is suitable for irregularly shaped equipment such as switch shear arms and transformer porcelain bushings. Anti-slip pads are provided on the surface of the horizontal section to ensure a secure fixation. The storage plate is made of non-slip steel plate with adjustable partitions on the surface. The partitions are connected by slide rails and the spacing can be adjusted according to the tool size. The perimeter is equipped with guards to prevent items from slipping. The mounting holes are evenly distributed on the edge for easy fixing to the 320 spur fork plate.

[0098] When the platform is running, the operation of barrel-type components requires the installation of a V-shaped auxiliary placement mechanism 330. The oil barrel is placed in the "V"-shaped groove to prevent rolling, and there is no shaking when lifting and filling oil, thus avoiding leakage of insulating oil. The operation of long strip-shaped tubes is equipped with a U-shaped auxiliary placement mechanism. The 3-meter-long tubes are linked by "main machine + 2 slave machines" for synchronous lifting and leveling. Wear-resistant pads prevent the tubes from being scratched, and personnel connect bolts in a safe area. The operation of irregularly shaped switch scissor arms is equipped with a 7-shaped auxiliary placement accessory 350. After clamping the scissor arm, it is lifted to connect to the switch body without the need for auxiliary fixation. Tools are stored on a storage plate with partitions for placing tools in different areas. Retrieving tools does not require going back and forth to the tool cart, saving time.

[0099] The replacement of this accessory system takes only 5-10 minutes and is easy to operate. All accessories are made of high-strength materials and have anti-slip and wear-resistant designs, which can withstand the weight of the equipment and operational wear for a long time, reducing maintenance costs. It covers all scenarios of medium-weight equipment installation in substations, giving the platform the characteristic of "one machine for multiple uses".

[0100] The functional accessories include a V-shaped auxiliary placement mechanism 330, a U-shaped auxiliary placement mechanism, a 7-shaped auxiliary placement accessory 350, and a placement plate. The functional accessories also include a fastening kit 370 fitted onto the spur plate 320. The V-shaped auxiliary placement mechanism 330, the U-shaped auxiliary placement mechanism, the 7-shaped auxiliary placement accessory 350, and the placement plate are all rotatably mounted on the fastening kit 370, which is fixed to the spur plate 320 by fasteners.

[0101] In some embodiments, the power supply module of the electrical control system 4 is a 24V DC power supply, provided by an AC power converter or a lithium battery; the control system supports a wireless linkage operation mode in which one host controls N slave devices, and integrates overload self-locking protection, power failure protection and emergency stop functions; it also includes power display, drive warning, fall protection, safety protection circuit and redundant communication link.

[0102] The electrical control system 4 of the multi-functional modular load-bearing installation platform used in this embodiment is based on a 24V DC power supply and supports both mains power conversion and lithium battery power supply. It integrates functions such as "master + N slave" wireless linkage control, overload self-locking protection, power failure protection, and emergency stop. It also includes power display, drive warning, fall protection, safety protection circuits and redundant communication links. It is the "control center" for the platform to achieve intelligent and safe operation.

[0103] The power module uses a safe 24V DC voltage. The AC-to-DC converter transforms 220V AC power to 24V, suitable for long-term fixed work locations. The lithium battery option features a high-capacity lithium battery pack, providing 4-6 hours of continuous operation, suitable for outdoor or mobile work without mains power. An LED screen displays the battery level in real-time, reminding users to charge promptly. The main control module uses a high-performance microcontroller, receiving commands from the wireless communication module and controlling the hydraulic drive module. It can also collect parameters such as load weight, lifting height, and motor current, triggering protection if the load exceeds safe limits. The wireless communication module uses an NRF24L01 chip, ensuring stable communication within 10 meters and supporting "master + N slave" linkage. The master can simultaneously send commands to multiple slaves, and it integrates redundant links, automatically switching to standby when the master link is interfered with, ensuring uninterrupted command execution. The hydraulic drive module consists of relays and MOSFETs, controlling the start / stop and forward / reverse rotation of the electro-hydraulic drive unit 22. A current detection circuit determines the load condition. The system also includes an emergency stop button, overload / power failure warning lights, and a fall protection linkage circuit, forming a complete protection system.

[0104] When the platform is running, during the power supply selection phase, the mains power or lithium battery is selected according to the operating point conditions, and the power display helps to estimate the operating duration. When a single platform is operating, the remote control issues an "ascend" command, and the main control module starts the drive unit. If the current exceeds the rated value, overload protection is triggered, and when power is cut off, the anti-fall mechanism is linked to lock the pulley 310. When multiple platforms are linked, such as when installing 3-meter pipe busbars, the host sets the linkage mode to issue a synchronization command. If the communication of the slave machine is interfered, it switches to the redundant link, and if the speed is abnormal, the machines stop synchronously. In case of an emergency, press the emergency stop button, and the main control module cuts off all outputs, locks the platform, and it can only be restarted after reset.

[0105] This system prevents electric shock, has dual power supplies adapted to multiple scenarios, linkage control meets the installation of long components, multiple protections comply with safety regulations, the lifting accuracy is ≤5mm, the operation is simple and does not require complex training, and the modular design is easy to maintain, providing core support for the intelligent and safe operation of the platform.

[0106] The invention embodiment also provides a method for installing substation equipment, which uses the multifunctional modular bearing installation platform as described above, and includes the following steps:

[0107] S1: Move the platform to the operating point, lower and adjust the anti-tilt fixed plug board 140 to make it close to the ground, and lock the mobile wheel set;

[0108] S2: Assemble the double-layer track columns through the quick clamping mechanism according to the installation height requirements;

[0109] S3: Select the corresponding functional accessory according to the shape of the equipment to be installed and install it on the horn fork board 320;

[0110] S4: Place the equipment components on the installed functional accessories;

[0111] S5: The operator controls the lifting mechanism to ascend through the wireless remote control, smoothly lifts the equipment to the predetermined height, and the mechanical anti-fall mechanism automatically locks;

[0112] S6: Personnel carry out equipment installation operations in the safe area;

[0113] S7: After the operation is completed, the operator triggers the descent command, and the platform descends smoothly to the initial position.

[0114] The working method of the multifunctional modular bearing installation platform for substations in this embodiment is based on the modular structure and intelligent control system, covering the whole process of platform positioning, column assembly, accessory installation, equipment bearing, lifting control, safe operation and reset transfer, ensuring the efficient, safe and accurate installation of medium-weight equipment such as transformer oil pillows, instrument transformer bushings, and pipe busbars.

[0115] When the platform is running, first move and position it: After checking that the moving wheel set, anti-tilt fixing plate 140 and electrical control system 4 are in normal condition, push the platform through the handle mechanism 150. The omnidirectional wheels 120 can flexibly turn to avoid obstacles. After reaching the work point, lock the wheels; adjust the anti-tilt fixing plate 140. Insert it 5-10cm on flat ground. On uneven ground, deepen the insertion plate on the downhill side to 15cm on the downhill side to form a stable support with the wheel set.

[0116] Next, assemble the double-layer track columns: if the equipment requires a height of 1.2 meters, such as the porcelain bushing of the current transformer, use a 1.6-meter-long column 211 for fixation; if it requires a height of 2 meters, such as the nut, clamp the long column 211 and the short column 212, and clean the slide rail to ensure the smooth operation of the trolley 310.

[0117] Then install the functional accessories: select accessories according to the shape of the equipment, install V-shaped auxiliary placement mechanism 330 on the oil tank, U-shaped auxiliary placement mechanism on the pipe nut, 7-shaped auxiliary placement accessory 350 on the scissor arm, tool storage and placement plate, and tighten bolts to prevent loosening.

[0118] Next, place the equipment components: align the oil tank with the center of the V-shaped mechanism, ensure the pipe nut is level, gently place the porcelain sleeve to prevent collision, check the stability of the equipment if it shakes, and adjust the accessories if it is loose.

[0119] Then control the lifting: personnel retreat to a safe zone within 10 meters, turn on the power supply and select mains power or lithium battery, send the "rise" command on the remote control, the drive unit drives the chain to make the equipment rise smoothly with an accuracy of ≤5mm, and the mechanical anti-fall mechanism locks after reaching the position; observe the power and warning light, and reduce the load if overloaded.

[0120] Then carry out safe operations: work under non-heavy objects, connect the oil tank flange, tighten the bolts on the pipe nut, and connect the porcelain sleeve; issue a jog command for fine adjustment, and press the emergency stop button in case of emergency.

[0121] Final reset and transfer: Issue the "lower" command to unlock the fall arrestor, lower the equipment, remove the accessories and columns, loosen the insert plate to unlock the wheels, push the platform to the next point or store it, and complete the work cycle.

[0122] This method has a standardized process, lowers the operational threshold, and works in conjunction with the platform structure and protection functions to solve the problems of low efficiency and high risk in traditional methods. It is compatible with multiple devices, shortens the operation cycle by 70% compared to traditional methods, and complies with substation safety standards.

[0123] In some implementations, the lifting accuracy error is ≤5mm, the lifting height range is 0-2 meters, and it supports collaborative operation of at least 3 platforms.

[0124] This embodiment is a multi-platform collaborative load-bearing installation system for substations. Its core is to adapt to the installation requirements of long and narrow equipment through multi-platform master-slave linkage and synchronous calibration. It includes at least three multi-functional modular load-bearing installation platforms. The electrical control system 4 of each platform integrates a synchronous calibration module, a master-slave linkage module, and a load balancing module. The lifting height range of the lifting mechanism of each platform is 0-2 meters, and the lifting accuracy error is ≤5mm, which can meet the requirements of smooth lifting and installation of long-sized equipment such as pipes and busbars.

[0125] The master-slave linkage module is used to set the master-slave relationship. During operation, one platform can be selected as the master and the rest as slaves. The master sends synchronization commands to the slaves through the wireless communication module to ensure coordinated operation of multiple platforms. The synchronization calibration module collects the lifting height data of each platform in real time. When the height deviation between the slave and the master exceeds 2mm, it automatically sends a fine-tuning command to the hydraulic drive module of the slave to correct the height deviation. The load balancing module monitors the load of each platform in real time. If a single platform carries 80% of its rated weight (1.5 tons), it automatically sends a load distribution command to the adjacent slaves to distribute the weight by adjusting the support position of the slaves and avoid overload.

[0126] During system operation, taking the installation of a 3-meter-long main pipe as an example, the middle platform is first set as the master and the two side platforms as slaves through the master-slave linkage module, completing the master-slave pairing. The operator inputs the target height of 1.8 meters through a remote terminal. After receiving the instruction, the master receives it and transmits it synchronously to the two slaves via the wireless communication module. The lifting mechanism of each platform is activated, the electro-hydraulic drive unit 22 drives the sprocket transmission mechanism to operate, and the chain drives the trolley 310 and the U-shaped auxiliary placement mechanism to rise. The main pipe is gradually lifted under the joint support of the three platforms.

[0127] The synchronous calibration module collects real-time height data from each platform. If the height of the left slave unit is 3mm lower than that of the main unit, the module immediately sends a fine-tuning command to the hydraulic drive module of the left slave unit, driving the left electro-hydraulic drive unit 22 to rotate slightly forward, making the height of the left slave unit consistent with that of the main unit, ensuring that the jacking is always horizontal and preventing the jacking from bending due to height deviation. The load balancing module synchronously monitors the load weight. If the main unit's load reaches 1.2 tons (80% of 1.5 tons), it automatically sends commands to both slave units to adjust the U-shaped auxiliary placement mechanism of the slave units, slightly moving it towards the center of the jacking, distributing the load of the main unit to within 1 ton, preventing the main unit from overload and triggering protection shutdown.

[0128] During the lifting and lowering process, the mechanical fall arrest mechanisms of each platform are in standby mode. If a slave unit suddenly loses power, the synchronization calibration module detects an abnormal height and immediately sends a stop command to all platforms. The mechanical fall arrest mechanisms of the main unit and other slave units automatically lock, and the main pipe remains at its current height to prevent a fall. After reaching the target height of 1.8 meters, the mechanical fall arrest mechanisms of all platforms lock synchronously. Workers then connect the main pipe and tighten the bolts in a safe area. The entire process complies with the requirements of the "Power Safety Work Regulations of China Southern Power Grid Co., Ltd.", completely eliminating safety hazards and equipment damage risks caused by asynchronous platform installation during the installation of long, narrow equipment.

[0129] The invention also provides a substation equipment installation system, which includes at least one multifunctional modular load-bearing installation platform as described above, and a remote control terminal for wireless monitoring and control of the platform.

[0130] This substation equipment installation system consists of at least one multi-functional modular load-bearing installation platform and a remote control terminal, which can realize remote monitoring of the platform, command sending and fault early warning, greatly improving the convenience and safety of operation, and adapting to the installation needs of multiple work points and multiple equipment in substations.

[0131] The remote control terminal integrates a data monitoring module, a command sending module, a fault early warning module, and a work recording module. The data monitoring module receives platform operating parameters in real time via a wireless communication module, including lifting height, load capacity, battery status, and the working status of each mechanism, and displays them in a visual interface. The command sending module can send lifting, start / stop, and master-slave linkage commands to the platform's electrical control system 4, supporting single-platform or multi-platform synchronous control. The fault early warning module presets safety thresholds; when the platform load exceeds 1.5 tons, the battery level drops below 10%, or the mechanical fall arrestor malfunctions, it immediately triggers an audible and visual alarm and sends an emergency stop command. The work recording module automatically records work information and generates traceable work reports.

[0132] Before operation, check the platform status through the data monitoring module of the remote control terminal: confirm that the anti-tilt fixing plate 140 of the mobile base is locked, the brake of the mobile wheel group is effective, the slide rail of the lifting mechanism is free of impurities, the power display of the electrical control system 4 is above 80%, and the mechanical anti-fall mechanism is in normal standby state. After ensuring that there are no abnormalities on the platform, start the operation.

[0133] When installing the current transformer porcelain bushing, the target platform is selected in the command sending module, and the target height of 1.2 meters and the lifting speed of 0.1 meters / second are input. The command is transmitted to the platform electrical control system 4 via the wireless communication module. The platform lifting mechanism is started, and the electro-hydraulic drive unit 22 drives the sprocket transmission mechanism to operate. The chain drives the trolley 310 and the V-shaped auxiliary placement mechanism 330 to rise. The data monitoring module displays the height change in real time, gradually rising from 0 meters to 1.2 meters. The lifting accuracy error is 1 mm, which meets the installation accuracy requirements.

[0134] During operation, if the load on the platform suddenly increases to 1.6 tons (over 1.5 tons) due to a shift in the center of gravity of the transformer bushing, the fault warning module immediately triggers an audible and visual alarm and automatically sends an emergency stop command to the platform. Upon receiving the command, the platform's electrical control system 4 immediately activates the overload self-locking protection, the electro-hydraulic drive unit 22 stops, and the mechanical fall arrestor automatically locks, maintaining the bushing at a height of 1.2 meters to prevent it from falling. The operator checks the cause of the abnormal load through the data monitoring module, adjusts the position of the bushing on the V-shaped auxiliary placement mechanism 330 to center the center of gravity, and reduces the load to 1.3 tons. Then, the command sending module cancels the alarm and sends a continued descent command. The platform unlocks the fall arrestor and smoothly descends to a height of 1 meter to readjust the support position.

[0135] After the work is completed, the work record module automatically generates a report, recording the installation type of the instrument transformer porcelain bushing, the maximum lifting height of 1.2 meters, the work duration of 25 minutes, and no fault information. This facilitates process traceability and quality control for subsequent substation equipment installation work, while also providing data support for platform maintenance to ensure the long-term stable operation of the equipment.

[0136] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the devices, apparatuses, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0137] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A multi-functional modular load-bearing installation platform for substations, characterized in that, include: The mobile base includes a Z-shaped main frame (110), and the bottom of the main frame (110) is provided with a set of moving wheels and an adjustable anti-tilt fixing plate (140). The lifting mechanism includes a double-layer track column vertically fixed on the movable base, an electro-hydraulic drive unit (22), a sprocket transmission mechanism, and a mechanical anti-fall mechanism; the electro-hydraulic drive unit (22) is fixed on the movable base, and its output end (221) is connected to the sprocket transmission mechanism; the sprocket transmission mechanism is used to drive the trolley (310) inside the double-layer track column to move; The fork support system includes a trolley (310) slidably connected to the double-layer track column and a fork plate (320) provided at the bottom of the trolley (310), the fork plate (320) being provided with pre-drilled holes for installing functional accessories; An electrical control system (4) is integrated on the mobile base and includes a power module, a main control module, a wireless communication module and a hydraulic drive module. The main control module is configured to receive wireless commands through the wireless communication module and control the hydraulic drive module to drive the spur fork plate (320) to move.

2. The multifunctional modular load-bearing installation platform according to claim 1, characterized in that, The moving wheel set includes two omnidirectional wheels (120) with self-locking braking devices at the front end of the main frame (110) and two roller-type pressure wheels (130) at the rear end.

3. The multifunctional modular load-bearing installation platform according to claim 2, characterized in that, The number of the anti-tilt fixing plate (140) is at least two. The main frame (110) is provided with side insertion holes on both sides. The anti-tilt fixing plate (140) is provided with a side insertion part, which is inserted into the side insertion hole. The anti-tilt fixing plate (140) is detachably provided with an angle iron stake (141).

4. The multifunctional modular load-bearing installation platform according to claim 1, characterized in that, The double-layer track column is composed of a long column (211) and a short column (212) connected by a quick-connect mechanism. The long column (211) and the short column (212) have vertically extending guide grooves on their side walls. The trolley (310) includes a support frame (3101) and sliding wheels (3102) located at the four corners of the support frame (3101). The support frame (3101) is provided with a connecting part (3103) that extends out of the double-layer track column through the guide groove. The connecting part (3103) is connected to the ram's horn plate (320).

5. The multifunctional modular load-bearing installation platform according to claim 1, characterized in that, The sprocket drive mechanism includes a shaft (231), two gear discs (232) passing through both ends of the shaft (231), and two chains (233) meshing with the two gear discs (232) respectively; the output end (221) of the electro-hydraulic drive unit (22) is connected to the shaft (231), and both ends of each chain (233) are connected to the double-layer track column and the trolley (310) respectively.

6. The multifunctional modular load-bearing installation platform according to claim 1, characterized in that, The mechanical anti-fall mechanism is integrated inside the double-layer track column and adopts a mechanical locking principle that allows for unobstructed ascent but requires active triggering for unlocking during descent.

7. The multifunctional modular load-bearing installation platform according to claim 1, characterized in that, The saddle fork plate (320) is connected to the trolley (310) via a brake shaft, enabling the saddle fork plate (320) to be angle-adjustable.

8. The multifunctional modular load-bearing installation platform according to claim 1, characterized in that, The functional accessories include at least one of a V-shaped auxiliary placement mechanism (330), a U-shaped auxiliary placement mechanism, a 7-shaped auxiliary placement accessory (350), and a placement plate, which are connected to the pre-drilled holes on the ram's horn plate (320) by bolts; the V-shaped auxiliary placement mechanism (330) is used for placing barrels, round items, conduits, and other components; the U-shaped auxiliary placement mechanism is used to support long strip-shaped components; the 7-shaped auxiliary placement accessory (350) is used for hoisting and fixing equipment components; the placement plate has a non-slip surface and is equipped with adjustable partitions.

9. The multifunctional modular load-bearing installation platform according to claim 1, characterized in that, The power supply module of the electrical control system (4) is a 24V DC power supply, provided by mains power conversion or lithium battery; the control system supports a wireless linkage operation mode in which one host controls N slaves, and integrates overload self-locking protection, power failure protection and emergency stop function; it also includes power display, drive warning, fall protection, safety protection circuit and redundant communication link.

10. A method for installing equipment in a substation, characterized in that, The multifunctional modular load-bearing installation platform as described in any one of claims 1-9 includes the following steps: S1: Move the platform to the work point, lower and adjust the anti-tilt fixing plate (140) to make it close to the ground, and lock the moving wheel set; S2: Assemble the double-layer track column using a quick-connect mechanism according to the installation height requirements; S3: Select the appropriate functional accessories according to the shape of the equipment to be installed and install them on the fork plate (320); S4: Place the equipment components onto the installed functional accessories; S5: The operator controls the lifting mechanism to rise via wireless remote control, smoothly raising the equipment to the predetermined height, and the mechanical anti-fall mechanism automatically locks. S6: Personnel are performing equipment installation work in a safe area; S7: After the operation is completed, the operator triggers the descent command, and the platform descends smoothly to the initial position.

Images