A substation modular secure load mounting device and equipment mounting system

Abstract

The utility model discloses a substation modularization safety bearing installation device and equipment installation system, its mobile matrix adopts Z type main frame, is equipped with the universal wheel and pressure wheel with self -locking function in the bottom to the detachable anti -tilt fixed plug -in board, the lifting mechanism includes the double -deck track stand, electric hydraulic drive unit, sprocket drive mechanism and mechanical type anti -fall mechanism through quick joint mechanism connection, the fork body support system includes the horned fork board of trolley and stand sliding connection, is equipped with the multifunctional reserve hole position on the horned fork board, can install V type, U type, 7 type auxiliary placing mechanism or the flat that is put back, electrical control system integrated power, main control, wireless communication and hydraulic drive module, supports multiple linkage and remote control. The device has the advantages of flexible movement, accurate positioning, stable lifting, safe operation, etc.

Description

Technical Field

[0001] This utility model relates to the field of substation equipment installation technology, and in particular to a modular safety bearing installation device and equipment installation system for substations. Background Technology

[0002] As a crucial component of the power system, the installation and maintenance of internal equipment (such as transformers, instrument transformers, and circuit breakers) in substations are key to ensuring the safe and stable operation of the power grid. Traditional equipment installation methods rely heavily on large machinery such as cranes and forklifts, or manual labor, which presents several problems: large machinery is difficult to move within the confined space of a substation, and may even be unable to enter; manual handling is inefficient, labor-intensive, and prone to accidents; installation accuracy is difficult to guarantee, affecting equipment connection quality; existing auxiliary tools are limited in function and adaptability, failing to meet the diverse installation needs of various equipment. Therefore, there is an urgent need for a modular installation device and system that is suitable for the complex environment of substations, easy to operate, safe, reliable, and highly adaptable. Utility Model Content

[0003] The purpose of this utility model is to provide a modular safety bearing installation device and equipment installation system for substations, aiming to solve the technical problems of difficulty in installing large equipment in confined spaces, low efficiency, insufficient safety and poor adaptability in the prior art.

[0004] To address the aforementioned problems, according to one aspect of this application, an embodiment of the present invention provides a modular safety bearing installation device for substations, comprising:

[0005] The mobile base includes a Z-shaped main frame, with self-locking casters and load-bearing wheels at the bottom, as well as a detachable anti-tilt fixing plate.

[0006] The lifting mechanism includes a double-layer track column connected by a quick-connect mechanism, an electro-hydraulic drive unit, a sprocket transmission mechanism, and a mechanical anti-fall mechanism;

[0007] The fork support system includes a fork plate that is slidably connected to the column via a trolley, and the fork plate is provided with a plurality of pre-drilled holes;

[0008] 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;

[0009] The sprocket drive mechanism is connected to the trolley via a chain, and the output end of the electro-hydraulic drive unit is connected to the sprocket drive mechanism to drive the trolley to move vertically within the double-layer track column;

[0010] The yoke fork plate is hinged to the pulley via a brake shaft, allowing for angle adjustment;

[0011] The anti-tilt fixing plate is connected to the main frame through side insertion holes and can be detachably installed with angle iron piles;

[0012] The rapid positioning component includes laser locators located at the four corners of the mobile base for alignment with preset marks on the substation ground. The laser locators are crosshair laser emitters with their emission direction vertically downward.

[0013] In some embodiments, the casters are located at the front end of the main frame, and the pressure rollers are located at the rear end; the pressure rollers are roller-type structures.

[0014] In some embodiments, the double-layer track column is connected by a long column and a short column through a snap-fit ​​mechanism, and the side wall of the column is provided with a vertically extending guide groove, and the sliding wheel of the trolley moves along the guide groove;

[0015] The locking mechanism includes a locking block located at the lower end of the short column and a locking groove with an elastic locking tongue located at the upper end of the long column.

[0016] In some embodiments, the sprocket drive mechanism includes a shaft, a gear disk, and a chain. The gear disk is symmetrically arranged at both ends of the shaft and meshes with the chain. The output end of the electro-hydraulic drive unit is connected to the shaft and extends and retracts in the vertical direction.

[0017] In some embodiments, the mechanical fall arrest mechanism is integrated inside the column and uses a mechanical locking method that allows for unobstructed ascent but requires unlocking during descent.

[0018] The mechanical anti-fall mechanism includes a brake block, a spring assembly, and an unlocking lever. The brake block can engage with the brake groove on the side of the trolley under the action of the spring.

[0019] In some embodiments, at least one of the following functional accessories may be mounted on the saddle plate:

[0020] V-shaped auxiliary placement mechanism;

[0021] U-shaped auxiliary placement mechanism;

[0022] 7-shaped auxiliary placement of accessories;

[0023] Place the flat plates back in their place.

[0024] In some embodiments, the functional accessory is connected to pre-drilled holes in the fork plate by bolts or secured by a fastener.

[0025] In some embodiments, the electrical control system is powered by 24V DC, supports AC mains power or lithium battery power, and has overload protection, power failure protection, and emergency stop functions.

[0026] In some implementations, the device supports multi-unit linkage operation, and synchronous control between the master and slave units is achieved through a wireless communication module.

[0027] This utility model embodiment also provides a substation equipment installation system, including the modular safety bearing installation device as described above, and a remote control terminal. The terminal communicates with the device wirelessly to realize monitoring and control.

[0028] Compared with the prior art, the modular safety bearing installation device for substations of this utility model has at least the following beneficial effects:

[0029] Modular design with strong adaptability: The column can be assembled through a quick snap-fit ​​mechanism and equipped with a variety of functional accessories, which can flexibly adapt to the installation needs of equipment of different sizes, shapes and weights, and realize one machine for multiple uses.

[0030] Easy to move and precise positioning: The Z-shaped frame structure is compact, and the universal wheels and load-bearing wheels work together to facilitate movement in narrow spaces; the laser positioner ensures that the device is quickly and accurately positioned.

[0031] Smooth lifting and precise control: The electric hydraulic drive combined with the chain drive ensures a smooth lifting process with high precision (error ≤5mm), while the mechanical anti-fall mechanism provides double safety protection.

[0032] Operational safety and reduced risks: It integrates overload protection, power failure protection, emergency stop and other functions, supports remote wireless control, avoids close-range operation by personnel, and greatly improves operational safety.

[0033] Highly efficient linkage, improving efficiency: Supports synchronous operation of multiple devices, especially suitable for the installation of long-sized equipment, significantly improving installation efficiency and shortening the operation cycle.

[0034] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0035] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 A schematic diagram of the structure of the modular safety bearing installation device for substations provided in this embodiment of the utility model;

[0037] Figure 2 A schematic diagram of the lifting mechanism of the modular safety bearing installation device for substations provided in this embodiment of the utility model;

[0038] Figure 3 Another structural schematic diagram of the modular safety bearing installation device for substations provided in this embodiment of the utility model;

[0039] Figure 4 A schematic diagram of the substation modular safety bearing installation device provided in this embodiment of the utility model when using a 7-shaped auxiliary placement accessory for hoisting;

[0040] Figure 5 A schematic diagram of the trolley structure of the modular safety bearing installation device for substations provided in this embodiment of the utility model.

[0041] Explanation of reference numerals in the attached figures:

[0042] 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

[0043] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the specific implementation methods, structures, features, and effects according to this utility model application are described in detail below with reference to the accompanying drawings and preferred embodiments. In the following description, different "embodiments" or "embodiments" 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.

[0044] In the description of this utility model, it should be clarified that the terms "first," "second," etc., in the specification, claims, and drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence; the terms "vertical," "lateral," "longitudinal," "front," "back," "left," "right," "up," "down," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model, 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 utility model.

[0045] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model based on the specific circumstances.

[0046] like Figures 1-5 As shown, this utility model embodiment provides a modular safety bearing installation device for substations, including:

[0047] 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.

[0048] The lifting mechanism, vertically fixed to the movable base, includes a double-layer track column, 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; the sprocket transmission mechanism is used to drive the trolley 310 inside the double-layer track column to move.

[0049] The fork support system is slidably connected to the double-layer track column of the lifting mechanism via a trolley 310. The bottom of the trolley 310 is provided with a fork plate 320, and the fork plate 320 is provided with pre-drilled holes for installing functional accessories.

[0050] 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.

[0051] This embodiment of the modular safety bearing installation device for substations is specially developed to solve the installation problem of medium-weight equipment in substations. It can be adapted to the installation of equipment weighing less than 1.5 tons within 2 meters in height, such as transformer oil tanks, instrument transformer porcelain bushings, switch shear arms, and busbars. The core is composed of a mobile base, a lifting mechanism, a fork support system, and an electrical control system, which are coordinated to perfectly fit the complex and narrow working environment of substations.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] The modular safety bearing installation device for substations also includes a rapid positioning component. The rapid positioning component includes laser locators located at the four corners of the mobile base for alignment with preset marks on the substation ground. The laser locator is a crosshair laser emitter with its emission direction vertically downward.

[0059] The rapid positioning components are located at the four corners of the mobile base, with a crosshair laser locator installed at each corner. The laser crosshairs are emitted vertically downwards and aligned with the pre-set installation marks on the substation ground to achieve rapid and accurate positioning, avoiding errors caused by manual visual inspection.

[0060] 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.

[0061] In this embodiment, the mobile wheel set of the modular safety bearing installation device 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 small space and complex terrain.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] In this embodiment, the anti-tilt fixing plate 140 of the substation modular safety bearing installation device is a core safety component that ensures the stability of the platform operation. At least two 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. The angle iron stake 141 can be inserted into the ground and the insertion angle and depth can be flexibly adjusted relative to the ground. It can effectively resist the tilting moment generated when the platform is carrying heavy objects and prevent the platform from overturning.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] 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.

[0071] 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 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 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.

[0072] The locking mechanism includes a locking block located at the lower end of the short column 212 and a locking groove with an elastic locking tongue located at the upper end of the long column 211.

[0073] In this embodiment, the double-layer track column of the substation modular safety bearing installation device 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 that extends out of the double-layer track column through the guide groove. The connecting part 3103 is connected to the yoke plate 320.

[0074] 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.

[0075] 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.

[0076] 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.

[0077] 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.

[0078] 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.

[0079] 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.

[0080] In this embodiment, the sprocket drive mechanism of the modular safety bearing installation device 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 respectively connected to the double-layer track column and the trolley 310. 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.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] 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.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] The mechanical anti-fall mechanism includes a brake block, a spring assembly, and an unlocking lever. The brake block can engage with the brake groove on the side of the trolley 310 under the action of the spring.

[0089] The mechanical fall arrest mechanism of the modular safety bearing installation device for substations in this embodiment is the core protective component to ensure the safety of equipment working at heights. 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.

[0090] 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.

[0091] 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.

[0092] 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".

[0093] 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.

[0094] 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.

[0095] 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.

[0096] In this embodiment, the yoke fork plate 320 of the substation modular safety bearing installation device is connected to the trolley 310 through 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.

[0097] 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.

[0098] 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.

[0099] 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.

[0100] 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.

[0101] 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.

[0102] 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.

[0103] The functional accessories of the modular safety bearing installation device for substations in this embodiment 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. These are connected to the pre-drilled holes on the yoke plate 320 via bolts. They can be flexibly replaced according to the different equipment installation requirements of the substation, achieving full compatibility with barrel-shaped components, long strip components, irregularly shaped equipment, and small tools.

[0104] 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.

[0105] 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.

[0106] 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".

[0107] 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.

[0108] In some embodiments, the power module of the electrical control system 4 is a 24V DC power supply, which is provided by mains conversion or a lithium battery; the control system supports a wireless linkage operation mode where one master unit controls N slave units, and integrates overload self-locking protection, power loss protection and emergency stop functions; it further includes power display, drive warning, fall prevention protection, safety protection circuit, and redundant communication link.

[0109] In this embodiment, the electrical control system 4 of the modular safety load-bearing installation device for a substation takes a 24V DC power supply as the core, supports two power supply modes of mains conversion and lithium battery, integrates functions such as "master unit + N slave units" wireless linkage control, overload self-locking protection, power loss protection, and emergency stop, and further includes power display, drive warning, fall prevention protection, safety protection circuit and redundant communication link, serving as the "control hub" for the platform to realize intelligent and safe operations.

[0110] The power module adopts a 24V DC safe voltage. In the mains conversion mode, a 220V mains supply is converted to 24V through an AC-to-DC module, which is suitable for long-term fixed operation points. The lithium battery mode is equipped with a high-capacity lithium battery pack with a battery life of 4-6 hours, which is suitable for outdoor or mobile operations without mains power. An LED screen displays the power in real time to remind timely charging. The main control module adopts a high-performance single-chip microcomputer, which can receive instructions from the wireless communication module and control the hydraulic drive module, and can also collect parameters such as load-bearing weight, lifting height, and motor current, and trigger protection when the value exceeds the safety range. The wireless communication module adopts the NRF24L01 chip, which enables stable communication within 10 meters and supports "master unit + N slave units" linkage. The master unit can send instructions to multiple slave units synchronously, and is also integrated with a redundant link that automatically switches to the backup one when the main link is interfered, so as to ensure uninterrupted instructions. The hydraulic drive module is composed of a relay and a MOS tube, which controls the start, stop, forward rotation and reverse rotation of the electric hydraulic drive unit 22, and is provided with a current detection circuit to judge the load-bearing condition. The system is also equipped with an emergency stop button, an overload / power loss warning light and a fall prevention linkage circuit, forming a complete protection system.

[0111] When the platform is in operation, in the power supply selection stage, mains power or lithium battery is selected according to the conditions of the operation point, and the power display on the screen helps estimate the operation duration. During single-platform operation, when the remote controller sends a "rise" instruction, the main control module starts the drive unit. When the current exceeds the rated value, the overload protection is triggered, and the fall prevention mechanism interlocks to lock the pulley 310 when power is off. For multi-platform linkage, for example, when installing a 3-meter tubular busbar, the master unit sets the linkage mode and sends synchronous instructions. When the communication of the slave unit is interfered, it switches to the redundant link, and the units stop synchronously if the speed is abnormal. In case of an emergency, press the emergency stop button, the main control module cuts off all outputs and locks the platform, which can be restarted only after resetting.

[0112] This system prevents electric shock, the dual power supply adapts to multiple scenarios, the linkage control meets the requirement of long component installation, the multiple protections comply with safety regulations, the lifting accuracy is ≤5mm, the operation is simple without requiring complicated training, and the modular design is easy to maintain, providing core support for the intelligent and safe operation of the platform.

[0113] The multifunctional modular support and installation platform of this utility model embodiment is used for substation equipment installation, and specifically includes the following steps:

[0114] 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;

[0115] S2: Assemble the double-layer track column using a quick-connect mechanism according to the installation height requirements;

[0116] S3: Select the appropriate functional accessories according to the shape of the equipment to be installed and install them onto the fork plate 320;

[0117] S4: Place the equipment components onto the installed functional accessories;

[0118] 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.

[0119] S6: Personnel are performing equipment installation work in a safe area;

[0120] S7: After the operation is completed, the operator triggers the descent command, and the platform descends smoothly to the initial position.

[0121] The working method of the modular safety bearing installation device for substations in this embodiment is based on a modular structure and intelligent control system. It covers the entire process of platform positioning, column assembly, accessory installation, equipment bearing, lifting control, safe operation and reset transfer, ensuring efficient, safe and accurate installation of medium-weight equipment such as transformer oil tanks, instrument transformer porcelain bushings and busbars.

[0122] 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.

[0123] 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.

[0124] 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.

[0125] 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.

[0126] 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.

[0127] 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.

[0128] 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.

[0129] 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.

[0130] 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.

[0131] 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.

[0132] 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.

[0133] 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.

[0134] 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.

[0135] 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.

[0136] The utility model embodiment also provides a substation equipment installation system, which includes at least one multi-functional modular load-bearing installation platform as described above, and a remote control terminal, which realizes monitoring and control of the platform wirelessly.

[0137] 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.

[0138] 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.

[0139] 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.

[0140] 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.

[0141] 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.

[0142] 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.

[0143] 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.

[0144] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model 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 this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A modular safety bearing installation device for substations, characterized in that, include: The mobile base includes a Z-shaped main frame (110), with casters (120) and bearing wheels (130) with self-locking function at the bottom, as well as a detachable anti-tilt fixing plate (140). The lifting mechanism includes a double-layer rail column connected by a quick-connect mechanism, an electro-hydraulic drive unit (22), a sprocket transmission mechanism, and a mechanical anti-fall mechanism; The fork support system includes a fork plate (320) slidably connected to the column via a trolley (310), and the fork plate (320) is provided with a plurality of pre-drilled holes; An electrical control system (4) is integrated on the mobile base and includes a power supply module, a main control module, a wireless communication module and a hydraulic drive module; The sprocket drive mechanism is connected to the trolley (310) via a chain (233), and the output end (221) of the electro-hydraulic drive unit (22) is connected to the sprocket drive mechanism to drive the trolley (310) to move vertically within the double-layer track column; The yoke plate (320) is hinged to the trolley (310) via a brake shaft, which allows for angle adjustment; The anti-tilt fixing plate (140) is connected to the main frame (110) through the side insertion hole, and the angle iron pile (141) can be detachably installed. The rapid positioning component includes laser locators located at the four corners of the mobile base for alignment with preset marks on the substation ground. The laser locators are crosshair laser emitters with their emission direction vertically downward.

2. The apparatus according to claim 1, characterized in that, The universal wheel (120) is located at the front end of the main frame (110), and the pressure wheel (130) is located at the rear end. The pressure wheel is a roller structure.

3. The apparatus according to claim 1, characterized in that, The double-layer track column is connected by a long column (211) and a short column (212) through a snap-fit ​​mechanism. The side wall of the column is provided with a vertically extending guide groove, and the sliding wheel (3102) of the trolley (310) moves along the guide groove. The locking mechanism includes a locking block located at the lower end of the short column (212) and a locking groove with an elastic locking tongue located at the upper end of the long column (211).

4. The apparatus according to claim 1, characterized in that, The sprocket transmission mechanism includes a rotating shaft (231), a gear disk (232) and a chain (233). The gear disk (232) is symmetrically arranged at both ends of the rotating shaft (231) and meshes with the chain (233). The output end (221) of the electro-hydraulic drive unit (22) is connected to the rotating shaft (231) and extends and retracts in the vertical direction.

5. The apparatus according to claim 1, characterized in that, The mechanical fall arrest mechanism is integrated inside the column and adopts a mechanical locking method that allows for unobstructed ascent but requires unlocking during descent. The mechanical anti-fall mechanism includes a brake block, a spring assembly, and an unlocking lever. The brake block can engage with the brake groove on the side of the trolley (310) under the action of the spring.

6. The apparatus according to claim 1, characterized in that, At least one of the following functional accessories can be installed on the ram's horn plate (320): V-shaped auxiliary placement mechanism (330); U-shaped auxiliary placement mechanism; 7-shaped auxiliary placement accessory (350); Place the flat plates back in their place.

7. The apparatus according to claim 6, characterized in that, The functional accessory is connected to the pre-drilled holes of the fork plate (320) by bolts, or is fixed by a fastening kit (370).

8. The apparatus according to claim 1, characterized in that, The electrical control system (4) is powered by 24V DC and supports mains power or lithium battery power supply. It has overload protection, power failure protection and emergency stop functions.

9. The apparatus according to claim 1, characterized in that, The device supports multi-unit linkage operation and achieves synchronous control between the master and slave units through a wireless communication module.

10. A substation equipment installation system, characterized in that, It includes at least one modular safety bearing installation device as described in any one of claims 1-9, and a remote control terminal, which communicates with the device wirelessly to achieve monitoring and control.

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