A transformer hoisting anti-accidental collision device and method based on tilt angle detection

Abstract

This invention relates to the field of transformer hoisting device technology, specifically disclosing a transformer hoisting anti-collision device and method based on tilt angle detection. The device includes: a hook; two hoisting components symmetrically and detachably mounted on two sets of horizontally positioned units, the two hoisting components being connected to the corresponding lifting points of the transformer for hoisting; two longitudinal detection units fixed at preset detection positions on the two hoisting components, the longitudinal detection units being used to collect longitudinal tilt angle data of the corresponding hoisting components in real time; and a lateral detection unit fixedly connected between the two hoisting components for real-time detection of the lateral relative levelness of the two hoisting components. This invention, by assembling the detection structure onto the hoisting rope, eliminates the need to separately install the detection device on the transformer body. Before hoisting, only the corresponding connections between the components and the hook, hoisting rope, and transformer lifting points need to be completed to detect the tilt state of the transformer.

Description

Technical Field

[0001] This invention belongs to the technical field of transformer hoisting devices, specifically relating to a transformer hoisting anti-accidental collision device and method based on tilt angle detection. Background Technology

[0002] As a core piece of equipment in the power system, the hoisting of transformers is a crucial step in the construction, renovation, and operation of substations, and the quality of this work directly determines equipment safety and grid stability. Due to the large size, concentrated weight, and complex operating environment of transformers, controlling their attitude stability during hoisting is paramount to preventing accidental collisions and damage. To avoid the problems of delayed tilt warnings and high risks of accidental collisions caused by traditional reliance on manual observation and experience-based judgment, tilt angle detection-based anti-accidental collision devices are typically installed separately on the transformer itself. These devices collect tilt angle data in real time to provide risk warnings and are then removed and recovered from the transformer after the hoisting operation is completed.

[0003] A search revealed a power transformer hoisting device with publication number CN116891181A, comprising a crossbeam, a first fixing block at the upper end of the crossbeam, and a fixing shaft at one end of the first fixing block; a hoisting strap below the crossbeam, with the strap's collar passing upward through the crossbeam and respectively fitted onto the fixing shaft; a slider on the crossbeam, with a rotating shaft rotatably mounted on the slider, and a winding shaft fixed at the end of the rotating shaft near the collar, the rotating shaft rotating in the forward direction winding the hoisting strap onto the two winding shafts.

[0004] Existing anti-accidental collision devices based on tilt angle detection usually need to be installed separately on the transformer body. They collect tilt angle data to provide risk warnings and are then removed and recycled from the transformer after the hoisting operation is completed. This involves many steps, and repeated disassembly and reassembly reduces hoisting efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a transformer hoisting anti-collision device and method based on tilt angle detection, in order to solve the problem mentioned in the background art that existing anti-collision devices based on tilt angle detection usually need to be installed separately on the transformer body, realize risk warning by collecting tilt angle data, and then be removed and recycled from the transformer after the hoisting operation is completed. This involves many operation steps and repeated disassembly and assembly will reduce hoisting efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A transformer hoisting anti-collision device based on tilt angle detection includes: a hook, and further includes: Two lifting components are symmetrically and detachably installed at the force-bearing end of the hook. The two lifting components are used to connect with the lifting points of the transformer to lift the transformer. Two longitudinal detection units are fixed at preset detection positions of two hoisting components, respectively. The longitudinal detection units are used to collect longitudinal tilt angle data of the corresponding hoisting components in real time. The lateral detection unit is fixedly connected between the two hoisting components and is used to detect the relative lateral levelness of the two hoisting components in real time. A horizontal positioning unit is located between the lifting assembly and the hook, and is used to horizontally position the lifting assembly.

[0007] Specifically, two lifting components are symmetrically and detachably mounted on the force-bearing end of the hook, with each set of lifting components positioned on a separate horizontal unit to ensure a balanced foundation during lifting. Their corresponding connection to the transformer's lifting points allows the transformer's tilt state to be directly transmitted to the lifting components. When the transformer tilts under gravity due to uneven weight distribution, it causes the corresponding lifting component to shift, resulting in a longitudinal tilt of a single lifting component. At this time, a longitudinal detection unit fixed to a preset detection position on the lifting component can collect this longitudinal tilt angle data in real time, reflecting the longitudinal attitude of the corresponding lifting component. Simultaneously, the transformer's lateral tilt creates a lateral relative position difference between the two lifting components. A lateral detection unit fixed between them can detect this relative position difference and convert it into lateral relative levelness data. By combining the longitudinal and lateral detection data, the actual tilt state of the transformer can be completely deduced, providing accurate data support for accidental collision warnings.

[0008] By using symmetrical and detachable hoisting components that are adapted to the transformer hoisting points, and combining the collaborative detection of longitudinal and lateral detection units, the tilting state of the transformer during hoisting can be captured in real time and comprehensively. For gravity-induced tilting caused by uneven weight distribution of the transformer, the longitudinal detection unit can accurately collect data from preset detection positions to capture the longitudinal tilt angle of a single hoisting component in a timely manner, while the lateral detection unit can simultaneously acquire the lateral relative levelness of two hoisting components. This enables the monitoring of the longitudinal and lateral tilting state of the transformer, avoiding equipment collisions or damage caused by the accumulation of subtle tilts that are difficult to detect manually. The detachable assembly design allows the device to be easily disassembled and reused after hoisting, reducing construction costs.

[0009] In one embodiment, the hoisting assembly includes: The lifting rope has a detachable upper end that can be suspended from the hook, and a detachable lower end that can be connected to the corresponding lifting point of the transformer. The longitudinal detection unit is fixed at the middle section of the hoisting rope and is located between the hook and the transformer lifting point.

[0010] In one embodiment, the longitudinal detection unit includes: Two first detection cylinders are installed on the hoisting rope and are symmetrically arranged with the force center line of the hoisting component as the axis of symmetry. Ventilation holes are opened at the top of both first detection cylinders. The connecting pipe is sealed at both ends to the lower part of the two first detection cylinders, so that the liquid level in the two first detection cylinders is consistent. The transverse detection unit is connected between the two connecting pipes.

[0011] In one embodiment, the first detection cylinder includes: A float is installed inside a first detection cylinder containing liquid, and the float floats on the surface of the liquid.

[0012] In one embodiment, the first detection cylinder further includes: A fixing rod is installed on top of the first detection cylinder; A movable rod is installed on the float. One end of the fixed rod has a movable groove, and the end of the movable rod away from the float is connected to the movable groove. A distance sensor is installed inside the moving slot. The distance sensor is used to detect the position of the moving rod inside the moving slot. The moving rod and the moving groove are fitted with a clearance, and the outer wall of the moving rod is fitted to the inner wall of the moving groove. The detection end face of the distance sensor is parallel to and opposite to the end face of the moving rod.

[0013] Two first detection cylinders are symmetrically installed around the center line of the hoisting assembly and sealed together by a connecting pipe. The liquid inside forms a complete communicating vessel structure. According to the principle of communicating vessels, when the hoisting assembly is in a longitudinally horizontal state, the liquid levels in the two detection cylinders are the same, the floats are in their initial positions, and the moving rod maintains its initial extension length within the moving groove of the fixed rod, ensuring a stable initial distance signal detected by the distance sensor. When the hoisting assembly tilts longitudinally, the two first detection cylinders tilt synchronously with the hoisting rope, creating a height difference. Under the influence of gravity, the liquid inside the communicating vessel rises from the higher position... The liquid level in the high-level detection cylinder rises as the liquid level in the low-level detection cylinder rises and the liquid level in the high-level detection cylinder falls, while the two liquid levels remain level. The float rises and falls synchronously with the liquid level in its respective detection cylinder, causing the moving rod fixed to the float to slide axially along the moving groove, changing the relative distance between the moving rod and the distance sensor. The distance sensor collects this distance data in real time, enabling indirect monitoring of the transformer's longitudinal tilt state. The vent is used to balance the air pressure inside and outside the detection cylinder, ensuring that the liquid level can rise and fall freely, while the sealed connecting pipe ensures the liquid is sealed to maintain the communicating vessel effect.

[0014] In one embodiment, the lateral detection unit includes: The second detection cylinder is positioned between the two connecting pipes, and the second detection cylinder contains liquid. A float plate is installed inside the second detection cylinder and floats on the surface of the liquid.

[0015] In one embodiment, the lateral detection unit further includes: The connecting shaft is mounted on the float plate at one end and extends to the outside of the second detection cylinder at the other end; An angle sensor is installed on the outer wall of the second detection cylinder, and the end of the connecting shaft away from the float is connected to the detection end of the angle sensor.

[0016] In one embodiment, the lateral detection unit further includes: Two connecting ropes, one end of which is installed on the two connecting pipes respectively, and the other end of which is installed on both ends of the second detection cylinder respectively; The two connecting ropes are symmetrically distributed about the central axis of the second detection cylinder, and the connection points of the connecting ropes and the connecting pipe are at the same horizontal height.

[0017] Specifically, two connecting ropes detachably connect the two ends of the second detection cylinder to the connecting pipes of the two hoisting components. Initially, the connecting ropes ensure the second detection cylinder is horizontal, forming a detection reference. When the transformer tilts laterally due to uneven weight distribution or hoisting operation deviation, it causes a lateral height difference between the two hoisting components. This height difference is transmitted to the connecting ropes through the connecting pipes, causing the second detection cylinder to tilt synchronously with the lateral relative posture of the two hoisting components. The liquid filling the second detection cylinder remains horizontal due to gravity, and the float on the liquid surface maintains a horizontal state, resulting in a relative deflection between the float and the tilted second detection cylinder. The horizontal posture of the float is directly transmitted to the detection end of the angle sensor installed on the outer wall of the second detection cylinder through the connecting shaft. The angle sensor indirectly determines the lateral tilt state of the transformer by detecting the angle change of the connecting shaft.

[0018] In a preferred embodiment, the horizontal setting unit includes: Anti-slip fixing ring, fitted onto the hook; The sliding ring is slidably sleeved on the outer wall of the anti-slip fixing ring, and the upper end of the hoisting rope can be detachably suspended from the sliding ring; The limiting ring is symmetrically connected to both sides of the anti-slip fixing ring, and the two sides of the sliding ring slide in contact with the limiting ring; The primary counterweight is located below the sliding ring and is connected to the limiting ring. A vertical plate is attached to the top of one set of limiting rings; The top plate is positioned above the hoisting rope, and its bottom surface is connected to the vertical plate. A clamping arc plate is located at the bottom of the top plate, and a fitting groove is provided on the inner wall of the clamping arc plate; The positioning knob is located on the top of the top plate, and the bottom end of the positioning knob passes through the top plate and is connected to the clamping arc plate bearing. The outer wall of the bottom end of the positioning knob is connected to the top plate through an external thread. Stabilizing slots are symmetrically opened within the vertical plate and penetrate through the vertical plate. The stabilizing block is slidably fitted into the stabilizing slot and is connected to the clamping arc plate; The secondary counterweight is symmetrically fitted and connected to the outer wall of the hoisting rope.

[0019] A method for using a transformer hoisting anti-accidental collision device based on tilt angle detection. Step 1: Place the anti-slip fixing ring on one of the force-bearing ends of the hook. Under the action of the primary counterweight, the vertical plate will always be at the top. Before hoisting, since the hoisting rope is in a loose state, attach a set of hoisting ropes to the outer wall of the sliding ring. Under the action of gravity and the sliding ring, the sliding ring will rotate and slide on the outer wall of the anti-slip fixing ring, so that the two sets of secondary counterweights will automatically be in a horizontal position, and the middle position of the hoisting rope will always be at the highest point in the initial state, ensuring that the height of the two sets of first detection cylinders is consistent. Then rotate the positioning knob to lower the clamping arc plate until the hoisting rope is clamped between the sliding ring and the clamping arc plate, thereby fixing the horizontal setting unit and the hoisting rope, preventing the horizontal setting unit from affecting the tilt angle detection during subsequent hoisting. Step 2: In the longitudinal detection unit, the two first detection cylinders are sealed and connected by a connecting pipe to form a communicating vessel structure. The liquid is filled inside. After the air pressure is balanced by the vent, the liquid levels in the two cylinders are equal. The float moves the moving rod to the initial position in the moving groove of the fixed rod, and the distance sensor records the initial distance. In the transverse detection unit, the second detection cylinder is in a horizontal state with the liquid level inside being horizontal. The float plate is kept horizontal and the angle sensor detection end is in the initial angle through the connecting shaft. Step 3: After hoisting begins, if the transformer tilts longitudinally due to uneven weight distribution, it will cause the hoisting rope of the corresponding hoisting component to tilt as well. This will create a height difference between the two first detection cylinders on the hoisting component and the hoisting rope. The liquid in the communicating vessel will flow from the higher cylinder to the lower cylinder. The liquid levels in the two first detection cylinders will remain level but at different heights. The float will rise and fall with the liquid level, causing the moving rod to slide along the moving groove. The distance sensor will collect the relative distance change between the moving rod and itself in real time and convert it into longitudinal tilt angle data. If the transformer tilts laterally, it will cause a lateral height difference between the two hoisting components. This height difference will be transmitted to the connecting rope through the connecting pipe, causing the second detection cylinder to tilt synchronously. The liquid in the cylinder will remain level due to gravity. The float will remain level with the liquid level and will form a relative deflection with the tilted second detection cylinder. The connecting shaft will transmit the horizontal attitude of the float to the angle sensor. The angle sensor will detect the deflection angle in real time and convert it into lateral relative levelness data. The operator can monitor the tilt status of the transformer in real time based on the longitudinal and lateral detection data and adjust the hoisting operation in a timely manner to avoid accidental collisions.

[0020] Compared with the prior art, the beneficial effects of the present invention are: By assembling the detection structure onto the lifting rope, there is no need to install the detection device separately on the transformer body. Before lifting, only the corresponding connection between the components and the hook, lifting rope, and transformer lifting points needs to be completed to detect the tilt state of the transformer. The longitudinal detection unit uses the stable characteristics of the natural horizontal liquid surface as the detection benchmark. With the linkage of the float, moving rod, and distance sensor, it can accurately capture the slight longitudinal tilt of the lifting components and achieve high-precision acquisition of tilt angle data. The lateral detection unit is synchronously tied between the two lifting components through the connecting rope, so that the lateral attitude of the detection structure and the lifting components is completely synchronized. Combining the liquid surface horizontal benchmark and the direct detection method of the angle sensor, the accuracy of the lateral relative level detection is ensured. Through two sets of horizontal setting components, the middle position of the lifting rope is always at the highest point in the initial state, ensuring that the height of the two sets of first detection cylinders is consistent. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0022] Figure 2 This is a schematic diagram of the hoisting assembly structure of the present invention.

[0023] Figure 3 This is a schematic diagram of the cross-section of the first detection cylinder of the present invention.

[0024] Figure 4 This is a cross-sectional schematic diagram of the first detection cylinder and the fixing rod of the present invention.

[0025] Figure 5 This is a schematic diagram of the cross-section of the second detection cylinder of the present invention.

[0026] Figure 6 This is a schematic diagram of the anti-slip fixing ring of the present invention.

[0027] Figure 7 This is a schematic diagram of the stabilizing slot of the present invention.

[0028] In the diagram: 100, hook; 200, lifting assembly; 201, lifting rope; 202, first detection cylinder; 203, float; 204, connecting pipe; 205, fixed rod; 206, moving rod; 207, distance sensor; 300, lateral detection unit; 301, second detection cylinder; 302, connecting rope; 303, float plate; 304, connecting shaft; 305, angle sensor; 400, horizontal setting unit; 401, anti-slip fixing ring; 402, sliding ring; 403, limiting ring; 404, primary counterweight; 405, vertical plate; 406, top plate; 407, clamping arc plate; 408, positioning knob; 409, stabilizing slot; 410, stabilizing block; 411, secondary counterweight. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1-7 A transformer hoisting anti-accidental collision device based on tilt angle detection includes: a hook 100, and further includes: Two lifting assemblies 200 are symmetrically and detachably installed at the force-bearing end of the hook 100. The two lifting assemblies 200 are used to connect with the lifting points of the transformer to lift the transformer. Two longitudinal detection units are fixed at preset detection positions of two hoisting components 200 respectively. The longitudinal detection units are used to collect the longitudinal tilt angle data of the corresponding hoisting components 200 in real time. The lateral detection unit 300 is fixedly connected between the two hoisting components 200 and is used to detect the relative lateral levelness of the two hoisting components 200 in real time. A horizontal positioning unit 400 is located between the hoisting assembly 200 and the hook 100 and is used to horizontally position the hoisting assembly 200.

[0031] Specifically, two lifting components 200 are symmetrically and detachably mounted on the force-bearing end of the hook 100, with the two sets of lifting components 200 positioned on two sets of horizontal mounting units 400 respectively, ensuring a balanced foundation for lifting. Their corresponding connection to the transformer's lifting points allows the transformer's tilt state to be directly transmitted to the lifting components 200. When the transformer tilts under gravity due to uneven weight distribution, it causes the corresponding lifting component 200 to shift, resulting in a longitudinal tilt of a single lifting component 200. At this time, the longitudinal detection unit fixed to the preset detection position of the lifting component 200 can collect the longitudinal tilt angle data in real time, reflecting the longitudinal attitude of the corresponding lifting component 200. Simultaneously, the lateral tilt of the transformer will create a lateral relative position difference between the two lifting components 200. The lateral detection unit 300 fixedly connected between them can convert this relative position difference into lateral relative levelness data. By combining the longitudinal and lateral detection data, the actual tilt state of the transformer can be completely deduced, providing accurate data support for accidental collision warning.

[0032] In the above technical solution, the symmetrical and detachable hoisting components 200 are adapted to the transformer hoisting points. Combined with the collaborative detection of the longitudinal detection unit and the lateral detection unit 300, the tilting state of the transformer during hoisting can be captured in real time and comprehensively. For gravity-induced tilting caused by uneven weight distribution of the transformer, the longitudinal detection unit can accurately collect the longitudinal tilt angle data of a single hoisting component 200 through preset detection positions. The lateral detection unit 300 can simultaneously acquire the lateral relative levelness of the two hoisting components 200, realizing the monitoring of the longitudinal and lateral tilting state of the transformer. This avoids equipment collisions or damage caused by the accumulation of subtle tilts that are difficult to detect by manual observation. The detachable assembly design allows the device to be easily disassembled and reused after hoisting, reducing construction costs.

[0033] In one embodiment, the hoisting assembly 200 includes: a hoisting rope 201, the lower end of which is detachably connected to the corresponding hoisting point of the transformer; and a longitudinal detection unit fixed at the middle section of the hoisting rope 201 and located between the hook 100 and the transformer hoisting point.

[0034] The longitudinal detection unit includes: two first detection cylinders 202, which are installed on the hoisting rope 201 and are symmetrically arranged with the force center line of the hoisting assembly 200 as the axis of symmetry. Each of the two first detection cylinders 202 has a vent hole at its top; a connecting pipe 204, which is sealed and connected to the lower part of the two first detection cylinders 202 at both ends to keep the liquid level in the two first detection cylinders 202 consistent; and a transverse detection unit 300 connected between the two connecting pipes 204.

[0035] The first detection cylinder 202 includes: a float 203 installed inside the first detection cylinder 202, the first detection cylinder 202 containing liquid, the float 203 floating on the surface of the liquid; a fixed rod 205 installed on the top of the first detection cylinder 202; a movable rod 206 installed on the float 203, one end of the fixed rod 205 having a movable groove, and the end of the movable rod 206 away from the float 203 connected to the movable groove; and a distance sensor 207 installed in the movable groove, the distance sensor 207 being used to detect the position of the movable rod 206 in the movable groove, the movable rod 206 and the movable groove having a clearance fit, and the outer wall of the movable rod 206 being fitted against the inner wall of the movable groove, and the detection end face of the distance sensor 207 being parallel and opposite to the end face of the movable rod 206.

[0036] In the above technical solution, the two first detection cylinders 202 are symmetrically installed around the force center line of the hoisting assembly 200 and sealed and connected by the connecting pipe 204. The liquid filling them forms a complete communicating vessel structure. According to the principle of communicating vessels, when the hoisting assembly 200 is in a longitudinally horizontal state, the liquid levels in the two detection cylinders are the same, the floats 203 are in their initial positions, and the moving rod 206 maintains its initial extension length in the moving groove of the fixed rod 205. The initial distance signal detected by the distance sensor 207 is stable. When the hoisting assembly 200 tilts longitudinally, the two first detection cylinders 202 tilt synchronously with the hoisting rope 201 and form a height difference. Under the influence of gravity, the liquid flows from the high-level detection cylinder to the low-level detection cylinder, causing the liquid level in the low-level detection cylinder to rise and the liquid level in the high-level detection cylinder to fall, while the two liquid levels remain level. The float 203 rises and falls synchronously with the liquid level change in its respective detection cylinder, driving the moving rod 206 fixed to the float 203 to slide axially along the moving groove, changing the relative distance between the moving rod 206 and the distance sensor 207. The distance sensor 207 collects this distance data in real time, realizing indirect monitoring of the longitudinal tilt state of the transformer. The vent is used to balance the air pressure inside and outside the detection cylinder, ensuring that the liquid level can rise and fall freely, while the sealed connecting pipe 204 ensures the liquid is sealed to maintain the communicating vessel effect.

[0037] In one embodiment, the lateral detection unit 300 includes: a second detection cylinder 301 disposed between two connecting pipes 204, the second detection cylinder 301 containing liquid; a float 303 disposed inside the second detection cylinder 301 and floating on the surface of the liquid; a connecting shaft 304, one end of which is mounted on the float 303 and the other end of which extends to the outside of the second detection cylinder 301; an angle sensor 305 mounted on the outer wall of the second detection cylinder 301, the end of the connecting shaft 304 away from the float 303 being connected to the detection end of the angle sensor 305; and two connecting ropes 302, one end of which is respectively mounted on the two connecting pipes 204 and the other end of which is respectively mounted on both ends of the second detection cylinder 301, the two connecting ropes 302 being symmetrically distributed about the central axis of the second detection cylinder 301, and the connection points of the connecting ropes 302 and the connecting pipes 204 being at the same horizontal height.

[0038] Specifically, two connecting ropes 302 detachably connect the two ends of the second detection cylinder 301 to the connecting pipes 204 of the two hoisting assemblies 200. Initially, the connecting ropes 302 ensure the second detection cylinder 301 is horizontal, forming a detection reference. When the transformer tilts laterally due to uneven weight distribution or hoisting operation deviation, it causes a lateral height difference between the two hoisting assemblies 200. This height difference is transmitted to the connecting ropes 302 through the connecting pipes 204, causing the second detection cylinder 301 to tilt laterally in sync with the two hoisting assemblies 200. The liquid filling the second detection cylinder 301 remains level due to gravity, and the float 303 floating on the liquid surface will also remain level, causing a relative deflection between the float 303 and the tilted second detection cylinder 301. The horizontal attitude of the float 303 is directly transmitted to the detection end of the angle sensor 305 installed on the outer wall of the second detection cylinder 301 through the connecting shaft 304. The angle sensor 305 indirectly determines the tilt state of the transformer in the lateral direction by detecting the angle change of the connecting shaft 304.

[0039] In a preferred embodiment, the horizontal setting unit 400 includes: Anti-slip fixing ring 401 is fitted onto hook 100; The sliding ring 402 is slidably sleeved on the outer wall of the anti-slip fixing ring 401, and the upper end of the hoisting rope 201 is detachably suspended from the sliding ring 402. The limiting ring 403 is symmetrically connected to both sides of the anti-slip fixing ring 401, and the two sides of the sliding ring 402 are in sliding fit with the limiting ring 403; The primary counterweight 404 is located below the sliding ring 402, and the primary counterweight 404 is connected to the limiting ring 403; Vertical plate 405 is connected to the top of one set of limiting rings 403; The top plate 406 is located above the hoisting rope 201, and the bottom surface of the top plate 406 is connected to the vertical plate 405. A clamping arc plate 407 is located at the bottom of the top plate 406, and a fitting groove is provided on the inner wall of the clamping arc plate 407. The positioning knob 408 is located on the top of the top plate 406, and the bottom end of the positioning knob 408 passes through the top plate 406 and is connected to the clamping arc plate 407 bearing. The outer wall of the bottom end of the positioning knob 408 is connected to the top plate 406 by external thread. The stabilizing slot 409 is symmetrically opened within the vertical plate 405, and the stabilizing slot 409 penetrates through the vertical plate 405; The stabilizing block 410 is slidably fitted in the stabilizing slot 409, and the stabilizing block 410 is connected to the clamping arc plate 407; Secondary counterweight 411 is symmetrically sleeved and connected to the outer wall of lifting rope 201; The stabilizing slot 409 and the stabilizing block 410 enhance the stability of the clamping arc plate 407 during lifting and lowering.

[0040] Please see Figures 1-7 A method for using a transformer hoisting anti-accidental collision device based on tilt angle detection includes the following steps: Step 1: Place the anti-slip fixing ring 401 on a set of force-bearing ends of the hook 100. Under the action of the first-level counterweight 404, the vertical plate 405 is always at the top. Before hoisting, since the hoisting rope 201 is in a loose state, place a set of hoisting ropes 201 on the outer wall of the sliding ring 402. Under the action of gravity and the sliding ring 402, the sliding ring 402 will rotate and slide on the outer wall of the anti-slip fixing ring 401, so that the two sets of second-level counterweights 411 are automatically in a horizontal position, and the middle position of the hoisting rope 201 is always at the highest point in the initial state, ensuring that the height of the two sets of first detection cylinders 202 is consistent. Then rotate the positioning knob 408 to lower the clamping arc plate 407 until the hoisting rope 201 is clamped between the sliding ring 402 and the clamping arc plate 407, thereby fixing the horizontal setting unit 400 and the hoisting rope 201, preventing the horizontal setting unit 400 from affecting the tilt angle detection during subsequent hoisting. Step 2: In the longitudinal detection unit, the two first detection cylinders 202 are sealed and connected by the connecting pipe 204 to form a communicating vessel structure filled with liquid. After the air pressure is balanced by the vent, the liquid levels in the two cylinders are flush. The float 203 drives the moving rod 206 to be in the initial position in the moving groove of the fixed rod 205, and the distance sensor 207 records the initial distance. In the transverse detection unit 300, the second detection cylinder 301 is in a horizontal state with the liquid level inside being horizontal. The float 303 is kept horizontal and the angle sensor 305 is in the initial angle through the connecting shaft 304. Step 3: After hoisting begins, if the transformer tilts longitudinally due to uneven weight distribution, it will cause the hoisting rope 201 of the corresponding hoisting assembly 200 to tilt as well. This will create a height difference between the two first detection cylinders 202 on the hoisting assembly 200 and the hoisting rope 201. The liquid in the communicating vessel will flow from the higher cylinder to the lower cylinder. The liquid levels in the two first detection cylinders 202 will remain level but at different heights. The float 203 will rise and fall with the liquid level, causing the moving rod 206 to slide along the moving groove. The distance sensor 207 will collect the changes in the relative distance between the moving rod 206 and itself in real time and convert them into longitudinal tilt angle data. If the transformer tilts laterally, it will cause... The two hoisting components 200 generate a lateral height difference, which is transmitted to the connecting rope 302 through the connecting pipe 204, causing the second detection cylinder 301 to tilt synchronously. The liquid inside the cylinder remains horizontal due to gravity, and the float 303 remains horizontal with the liquid surface and forms a relative deflection with the tilted second detection cylinder 301. The connecting shaft 304 transmits the horizontal attitude of the float 303 to the angle sensor 305. The angle sensor 305 detects the deflection angle in real time and converts it into lateral relative horizontality data. The operator can monitor the tilt status of the transformer in real time based on the longitudinal and lateral detection data and adjust the hoisting operation in a timely manner to avoid accidental collision.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A transformer hoisting anti-collision device based on inclination detection, comprising a lifting hook (100), characterized in that, Also includes: Two lifting assemblies (200) are symmetrically and detachably disposed at the force-bearing end of the hook (100). The two lifting assemblies (200) are used to connect with the lifting points of the transformer to lift the transformer. Two longitudinal detection units are respectively fixed at the preset detection positions of the two hoisting components (200). The longitudinal detection units are used to collect the longitudinal tilt angle data of the corresponding hoisting components (200) in real time. A lateral detection unit (300) is fixedly connected between two hoisting components (200) and is used to detect the relative lateral levelness of the two hoisting components (200) in real time. A horizontal positioning unit (400) is located between the lifting assembly (200) and the hook (100) for horizontally positioning the lifting assembly (200).

2. The tilt angle detection based transformer hoisting anti-collision device according to claim 1, characterized in that: The hoisting assembly (200) includes: The lower end of the hoisting rope (201) is detachably connected to the corresponding hoisting point of the transformer; The longitudinal detection unit is fixed at the middle section of the hoisting rope (201) and is located between the hook (100) and the transformer hoisting point.

3. The tilt angle detection based transformer hoisting anti-collision device according to claim 2, characterized in that: The longitudinal detection unit includes: Two first detection cylinders (202) are installed on the hoisting rope (201) and are symmetrically arranged with the force center line of the hoisting assembly (200) as the axis of symmetry. Ventilation holes are opened on the top of the two first detection cylinders (202). The connecting pipe (204) is sealed and connected at both ends to the lower part of the two first detection cylinders (202) respectively, so that the liquid level in the two first detection cylinders (202) is consistent. The transverse detection unit (300) is connected between the two connecting pipes (204).

4. The transformer hoisting anti-accidental collision device based on tilt angle detection according to claim 3, characterized in that: The first detection cylinder (202) includes: A float (203) is installed inside a first detection cylinder (202), which contains liquid, and the float (203) floats on the surface of the liquid.

5. The transformer hoisting anti-accidental collision device based on tilt angle detection according to claim 4, characterized in that: The first detection cylinder (202) also includes: A fixing rod (205) is installed on top of the first detection cylinder (202); The movable rod (206) is installed on the float (203), and a movable groove is provided at one end of the fixed rod (205). The end of the movable rod (206) away from the float (203) is connected in the movable groove. A distance sensor (207) is installed in the moving slot. The distance sensor (207) is used to detect the position of the moving rod (206) in the moving slot. The movable rod (206) and the movable groove are in clearance fit, and the outer wall of the movable rod (206) is fitted to the inner wall of the movable groove. The detection end face of the distance sensor (207) is parallel to the end face of the movable rod (206).

6. The transformer hoisting anti-accidental collision device based on tilt angle detection according to claim 3, characterized in that: The lateral detection unit (300) includes: The second detection cylinder (301) is disposed between two connecting pipes (204), and the second detection cylinder (301) contains liquid; A float plate (303) is set inside the second detection cylinder (301) and floats on the surface of the liquid.

7. The transformer hoisting anti-accidental collision device based on tilt angle detection according to claim 6, characterized in that: The lateral detection unit (300) further includes: The connecting shaft (304) is mounted on the float (303) at one end and extends to the outside of the second detection cylinder (301) at the other end; An angle sensor (305) is installed on the outer wall of the second detection cylinder (301), and the end of the connecting shaft (304) away from the float (303) is connected to the detection end of the angle sensor (305).

8. The transformer hoisting anti-accidental collision device based on tilt angle detection according to claim 6, characterized in that: The lateral detection unit (300) further includes: Two connecting ropes (302) are installed at one end on two connecting pipes (204) respectively, and at the other end on both ends of the second detection cylinder (301); The two connecting ropes (302) are symmetrically distributed about the central axis of the second detection cylinder (301), and the connection points of the connecting ropes (302) and the connecting pipe (204) are at the same horizontal height.

9. The transformer hoisting anti-accidental collision device based on tilt angle detection according to claim 2, characterized in that: The horizontal setting unit (400) includes: Anti-slip fixing ring (401) is fitted onto hook (100); The sliding ring (402) is slidably sleeved on the outer wall of the anti-slip fixing ring (401), and the upper end of the hoisting rope (201) can be detachably suspended from the sliding ring (402). The limiting ring (403) is symmetrically connected to both sides of the anti-slip fixing ring (401), and the two sides of the sliding ring (402) are in sliding fit with the limiting ring (403); A primary counterweight (404) is located below the sliding ring (402), and the primary counterweight (404) is connected to the limiting ring (403); A vertical plate (405) is connected to the top of one set of limiting rings (403); The top plate (406) is located above the hoisting rope (201), and the bottom surface of the top plate (406) is connected to the vertical plate (405); A clamping arc plate (407) is provided at the bottom of the top plate (406), and a fitting groove is provided on the inner wall of the clamping arc plate (407); The positioning knob (408) is located on the top of the top plate (406), and the bottom end of the positioning knob (408) passes through the top plate (406) and is connected to the clamping arc plate (407) bearing. The outer wall of the bottom end of the positioning knob (408) is connected to the top plate (406) by external thread. The stabilizing slot (409) is symmetrically opened in the vertical plate (405), and the stabilizing slot (409) penetrates the vertical plate (405). The stabilizing block (410) is slidably fitted in the stabilizing slot (409), and the stabilizing block (410) is connected to the clamping arc plate (407); The secondary counterweight (411) is symmetrically fitted and connected to the outer wall of the hoisting rope (201).

10. The method of using the transformer hoisting anti-accidental collision device based on tilt angle detection according to any one of claims 1-9, characterized in that, Includes the following steps: Step 1: Place the anti-slip fixing ring (401) on one of the force-bearing ends of the hook (100). Under the action of the primary counterweight (404), the vertical plate (405) is always at the top. Before hoisting, since the hoisting rope (201) is in a loose state, place a set of hoisting ropes (201) on the outer wall of the sliding ring (402). Under the action of gravity and the sliding ring (402), the sliding ring (402) will rotate and slide on the outer wall of the anti-slip fixing ring (401), thereby causing the two sets of secondary counterweights (41) to move. 1) Automatically position the hoisting rope (201) so that the middle position of the hoisting rope (201) is always at the highest point in the initial state, ensuring that the height of the two sets of first detection cylinders (202) is consistent. Then rotate the positioning knob (408) to lower the clamping arc plate (407) until the hoisting rope (201) is clamped between the sliding ring (402) and the clamping arc plate (407), thereby fixing the horizontal setting unit (400) and the hoisting rope (201) to prevent the horizontal setting unit (400) from affecting the tilt angle detection during subsequent hoisting. Step 2: In the longitudinal detection unit, the two first detection cylinders (202) are sealed and connected by a connecting pipe (204) to form a communicating vessel structure filled with liquid. After the air pressure is balanced by the vent hole, the liquid levels in the two cylinders are aligned. The float (203) drives the moving rod (206) to be in the initial position in the moving groove of the fixed rod (205), and the distance sensor (207) records the initial distance. In the transverse detection unit (300), the second detection cylinder (301) is in a horizontal state with the liquid level inside being horizontal. The float (303) is kept horizontal and the angle sensor (305) is in the initial angle through the connecting shaft (304). Step 3: After the hoisting begins, if the transformer tilts longitudinally due to uneven weight distribution, it will cause the hoisting rope (201) of the corresponding hoisting component (200) to tilt, causing the two first detection cylinders (202) on the hoisting component (200) to form a height difference with the hoisting rope (201). The liquid in the communicating vessel flows from the higher cylinder to the lower cylinder. The liquid levels of the two first detection cylinders (202) remain level but at different heights. The float (203) moves with the liquid level, causing the moving rod (206) to slide along the moving groove. The distance sensor (207) collects the changes in the relative distance between the moving rod (206) and itself in real time and converts them. The longitudinal tilt angle data is used for the transformer. If the transformer tilts laterally, it will cause a lateral height difference between the two hoisting components (200). This height difference is transmitted to the connecting rope (302) through the connecting pipe (204), causing the second detection cylinder (301) to tilt synchronously. The liquid inside the cylinder remains level due to gravity, and the float (303) remains level with the liquid and forms a relative deflection with the tilted second detection cylinder (301). The connecting shaft (304) transmits the horizontal attitude of the float (303) to the angle sensor (305). The angle sensor (305) detects the deflection angle in real time and converts it into lateral relative levelness data. The operator can monitor the transformer tilt status in real time based on the longitudinal and lateral detection data and adjust the hoisting operation in a timely manner to avoid accidental collisions.

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