Lifting appliance for lifting transformer bushing

Abstract

The invention belongs to the technical field of transformer assembly, and discloses a transformer bushing hoisting sling which comprises a fixing block, the bottom end of the fixing block is rotationally connected with a connecting block, the bottom end of the connecting block is provided with a clamping assembly and a driving assembly, and the driving assembly is in transmission connection with the clamping assembly; the clamping assembly comprises a plurality of clamping plates hinged to the lower end of the connecting block at equal intervals, and the driving assembly is in transmission connection with the inner walls of the clamping plates. A clamping block is fixedly connected to the bottom end of the clamping plate, a plurality of clamping rods are arranged on the side wall of the clamping block in a telescopic mode, a contact block is rotationally connected to the end of each clamping rod, and the contact blocks make contact with the outer wall of the transformer bushing; a control assembly is arranged in the fixing block and electrically connected with the driving assembly. The lifting appliance is compact in structure, suitable for clamping and lifting transformer bushings of different specifications, capable of checking the clamping force and high in stability, the automation degree and the intelligence degree of the lifting appliance are improved, damage in the lifting process is reduced, and the safety level of field operation is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of transformer assembly, and particularly to a lifting sling for a transformer bushing. Background Art

[0002] The transformer bushing is the main insulation device outside the transformer tank. The lead-out wire of the transformer winding must pass through the insulating bushing to insulate between the lead-out wires and between the lead-out wire and the transformer shell, and at the same time play a role in fixing the lead-out wire. During specific installation, it can be installed vertically or obliquely on the transformer according to practical needs.

[0003] The functional and matching properties of traditional lifting slings for transformer bushings are relatively limited. Different on-site operators, including different personnel from bushing manufacturers, have inconsistent methods and tools for bushing lifting, and safety and quality cannot be uniformly guaranteed. Moreover, during the lifting process, the vibration amplitude and inclination angle of the lifted object often rely on the intuitive feelings and experience of on-site operators to judge, lacking objective parameter basis, resulting in insufficient controllability of the lifting process and inconvenience in controlling subsequent installation.

[0004] Therefore, this application designs a lifting sling for a transformer bushing to solve the above technical problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a lifting sling for a transformer bushing to solve the problems existing in the prior art.

[0006] To achieve the above purpose, the present invention provides the following solution: The present invention provides a lifting sling for a transformer bushing, including a fixing block detachably connected to a lifting device. The bottom end of the fixing block is rotatably connected to a connecting block. The bottom end of the connecting block is provided with a clamping assembly for gripping the transformer bushing. The bottom end of the connecting block is provided with a driving assembly, and the driving assembly is in transmission connection with the clamping assembly;

[0007] The clamping assembly includes a plurality of clamping plates hinged at equal intervals at the lower end of the connecting block, and the driving assembly is in transmission connection with the inner wall of the clamping plate;

[0008] The bottom end of the clamping plate is fixedly connected with a clamping block. A plurality of clamping rods are telescopically arranged on the side wall of the clamping block. The end of the clamping rod is rotatably connected with a contact block, and the contact block is in contact with the outer wall of the transformer bushing;

[0009] A control assembly is arranged in the fixing block, and the control assembly is electrically connected with the driving assembly.

[0010] Preferably, a plurality of clamping holes adapted to the clamping rods are formed on the side wall of the clamping block. The clamping rods are slidably connected in the clamping holes, and a clamping spring is arranged between the clamping rods and the clamping holes.

[0011] Preferably, a first pressure sensor is embedded in the clamping hole, the clamping spring abuts against the first pressure sensor, and the first pressure sensor is electrically connected to the driving component.

[0012] Preferably, the driving component includes a driving motor fixedly installed at the bottom end of the connecting block. The driving motor is drivingly connected to a driving screw rod. A driving block is threadedly connected to the driving screw rod. A driving support rod is arranged between the driving block and the clamping plate.

[0013] Preferably, a plurality of connecting plates adapted to the clamping plate are fixedly connected to the bottom end of the connecting block at equal intervals. The top end of the clamping plate is hinged to the bottom end of the connecting plate.

[0014] Preferably, a fixing groove is formed at the bottom end of the fixing block. A rotating motor electrically connected to the control component is fixedly connected in the fixing groove. The output shaft of the rotating motor extends out of the fixing groove and is drivingly connected to the top end of the connecting block.

[0015] Preferably, an annular connecting groove is formed at the top end of the connecting block. A plurality of connecting heads are slidably connected in the connecting groove at equal intervals. The top ends of the connecting heads extend out of the connecting groove and are fixedly connected to the bottom end of the fixing block.

[0016] Preferably, a second pressure sensor is embedded at the top end of the connecting head. The second pressure sensor abuts against a connecting frame movably connected to the bottom end of the connecting head. A plurality of rollers are arranged between the connecting frame and the connecting groove.

[0017] Preferably, the control component includes an installation groove formed at the top end of the fixing block. A control module, a power supply module and a remote information interaction module which are electrically connected are arranged in the installation groove. The control module is electrically connected to the driving motor and the rotating motor respectively.

[0018] Preferably, a hinge seat is arranged on the inner wall of the clamping plate. The driving support rod is rotatably connected to the hinge seat; a plurality of hinge grooves are formed in the side wall of the driving block. The driving support rod is rotatably connected in the hinge grooves.

[0019] Compared with the prior art, the present invention has the following advantages and technical effects: the present invention discloses a transformer bushing hoisting sling, in which a fixed block is stably connected to a hoisting device, a connecting block equipped with a clamping assembly and a driving assembly is rotatably connected to the bottom end of the fixed block, so that the lifted transformer bushing can be rotated at multiple angles and the installation angle can be adjusted conveniently; the driving assembly is transmission-connected to the clamping assembly, and the opening and closing of the clamping assembly can be controlled by the driving assembly to clamp and release the transformer bushing, so that the clamping is stable and the lifting safety is improved; the clamping assembly includes a plurality of clamping plates hinged at the bottom end of the connecting block, and the plurality of clamping plates are equally spaced around the outer wall of the transformer bushing, and the driving assembly can control The clamping plate is opened and closed, and the clamping plate is moved closer to or away from the transformer bushing, thereby realizing the clamping and loosening of the transformer bushing; during clamping, the clamping rod telescopically arranged on the clamping block drives the contact block to press against the transformer bushing, thereby causing the contact block to deflect, so that a number of contact blocks can press against the outer wall of the circular transformer bushing respectively, so that the clamping of transformer bushings of different specifications is more stable; the control component is arranged in the fixed block, which is used to control the operation of the hoist, so that the hoist can be automatically operated according to the preset program, so that the clamping of the transformer bushing is automated and intelligent, and at the same time, the vibration and deflection angle of the transformer bushing during the lifting process are detected, thereby realizing the control of the vibration amplitude.

[0020] The invention has a compact structure and can be used for clamping and hoisting transformer bushings of different specifications. The clamping force is verified and the stability is high. The automation and intelligence of the hoisting device are improved, the damage during the hoisting process is reduced, and the safety level of on-site operations is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0022] Figure 1 This is an axial view of the transformer bushing hoisting hanger of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the transformer bushing hoisting device of the present invention;

[0024] Figure 3 For the present invention Figure 2 A partial enlarged view of middle A;

[0025] Figure 4 For the present invention Figure 2 A partial enlarged view of B in the middle;

[0026] Figure 5 This is a schematic diagram of the top view of the clamping block of the present invention;

[0027] In the figure: 1. Fixed block; 2. Connecting block; 3. Transformer bushing; 4. Mounting clamp plate; 5. Clamping block; 6. Clamping rod; 7. Contact block; 8. Clamping hole; 9. Clamping spring; 10. First pressure sensor; 11. Driving motor; 12. Driving screw; 13. Driving block; 14. Driving groove; 15. Connecting plate; 16. Fixed groove; 17. Rotating motor; 18. Connecting groove; 19. Connecting head; 20. Second pressure sensor; 21. Connecting frame; 22. Roller; 23. Mounting groove; 24. Control module; 25. Power supply module; 26. Remote information interaction module; 27. Hinge seat; 28. Hinge groove; 29. Cover plate; 30. Connecting ear; 31. Driving strut; 32. Contact layer. Detailed implementation manners

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0030] The patent with the patent number CN202410052138.X discloses a transformer bushing auxiliary hoisting device, including a gantry and a lifting tool. The gantry includes a cross beam, the two sides of the cross beam are connected with columns, the lower ends of the columns are provided with a bottom beam, and moving wheels are provided at the lower part of the bottom beam; a lifting oil cylinder is provided on the bottom beam, the upper end of the piston rod of the lifting oil cylinder is rotatably connected with a sprocket, a chain is wound around the sprocket, one end of the chain is connected with the cylinder seat of the lifting oil cylinder, and the other ends of the two chains are connected with a lifting rail; as shown in Figures - Figures, the lifting tool includes a sliding seat slidably installed on the lifting rail, a fixed seat is provided at the lower part of the sliding seat, a connecting frame is provided at the lower part of the fixed seat, a connecting plate is hinged at the lower part of the connecting frame, the connecting plate is in an L-shaped structure, a turning oil cylinder is hinged on one side of the connecting plate, and the end of the piston rod of the turning oil cylinder is hinged with the connecting frame; a connecting cover is provided at the lower part of the connecting plate, two support arms are connected to each side of the connecting cover, a first clamp is provided at the lower part of one of the support arms, and a second clamp is provided at the lower part of the other support arm. As shown in the figure, the first clamp includes a fixed clamping block, the fixed clamping block is in an inverted Y-shaped structure, two sides of the fixed clamping block are hinged with holding arms, the upper ends of the holding arms are rotatably connected with a connecting column, a double-headed stud is rotatably connected to the fixed clamping block, the thread directions at both ends of the double-headed stud are opposite, both ends of the double-headed stud are threadedly connected with the connecting column, and a hand wheel is provided at one end of the double-headed stud. The second clamp has the same structure as the first clamp, and its structure will not be described in detail.

[0031] Both ends of the hanging rail are fixedly connected with sliding plates. Guide sleeves are provided at both ends of the sliding plates, and the guide sleeves are slidably connected with the columns. The sliding plates use the columns as guide rods, which avoids the shaking during the lifting of the hanging rail, thereby avoiding the shaking during the hoisting operation of the casing and ensuring the stability of the casing hoisting; threaded connections are provided at both ends of the bottom beam with support screws, and pads are provided at both ends of the support screws. After the gantry moves into place, rotate the support screws to fix the gantry, further ensuring the stability of the casing hoisting.

[0032] An auxiliary oil cylinder is hinged to the lower part of the fixed seat. The lower end of the piston rod of the auxiliary oil cylinder is hinged to the side wall of the connecting plate. When the casing is lifted and flipped, the piston rod of the auxiliary oil cylinder contracts, and cooperates with the flipping oil cylinder to flip the casing, reducing the pressure of the flipping oil cylinder and improving the stability of the casing flipping.

[0033] A sleeve is fixedly connected to the lower part of the fixed seat. A rotating shaft is rotatably connected inside the sleeve through a bearing. The lower end of the rotating shaft is connected with a suspension rod through a flange. The lower end of the suspension rod is fixedly connected with the connecting frame. A gear is fixedly connected to the upper end of the rotating shaft. A linear guide rail is fixedly connected inside the fixed seat. A rack is slidably connected on the linear guide rail, and the rack meshes with the gear. A rotating oil cylinder is provided inside the fixed seat, and the piston rod of the rotating oil cylinder is fixedly connected with the rack; after the casing is lifted, according to the installation angle of the casing on the transformer, control the telescopic movement of the piston rod of the rotating oil cylinder, drive the gear to rotate by using the rack, and thus drive the connecting cover at the lower part of the connecting frame to rotate through the rotating shaft and the suspension rod, realizing the adjustment of the casing angle.

[0034] An arc-shaped guide rail is fixedly connected to the lower part of the fixed seat. A slider is slidably connected on the arc-shaped guide rail. The cylinder block of the auxiliary oil cylinder is hinged on the slider. When the lifting tool rotates, the auxiliary oil cylinder rotates together with the connecting plate, avoiding the torsion and skewed pulling of the auxiliary oil cylinder and ensuring the smoothness of the rotation of the lifting tool.

[0035] A through groove is provided on the upper part of the fixed clamping block. The support arm is installed in the through groove with a gap. An adjusting screw is threadedly connected to the upper part of the fixed clamping block. A fixed disk is provided at the lower part of the adjusting screw. The through groove facilitates the adjustment of the distance between the first fixture and the second fixture, so as to adapt to the hoisting of casings of different specifications.

[0036] A number of card slots are provided on the upper part of the support arm. The edges of the card slots are wavy, and the fixed disk is stuck in the card slots, avoiding the sliding of the first fixture and the second fixture on the support arm and ensuring the stability of the first fixture and the second fixture after adjustment.

[0037] The connecting cover includes an arc-shaped groove plate and arc-shaped cover plates arranged on both sides of the arc-shaped groove plate. The radian of the arc-shaped groove plate and the arc-shaped cover plates is greater than a certain degree, and the opening size of the arc-shaped groove plate and the arc-shaped cover plates is greater than the diameter of the sleeve. Arc-shaped baffles are connected to both sides of the arc-shaped groove plate by bolts. One end of the arc-shaped cover plate is provided with a boss. The inner diameter of the arc-shaped baffle is smaller than the inner diameter of the arc-shaped groove plate, so that a guiding groove is formed between the two arc-shaped baffles after the arc-shaped groove plate and the arc-shaped baffle are connected. The boss is installed in the guiding groove with a gap. After the sleeve is lifted, one of the arc-shaped cover plates is rotated by a certain degree, so that the sleeve is surrounded by the arc-shaped cover plates on both sides. The first clamp and the second clamp are clamped on both sides of the sleeve, ensuring the stability of the sleeve clamping.

[0038] A clamping screw is threadedly connected to the arc-shaped cover plate. The lower end of the clamping screw is movably connected with a clamping plate. The clamping plate abuts against the outer wall of the sleeve, increasing the number of clamping points of the lifting tool on the sleeve. And when the arc-shaped cover plate rotates, the two clamping plates are respectively clamped on both sides of the sleeve, further enhancing the stability of the sleeve clamping.

[0039] When hoisting the sleeve, first move the gantry to the upper part of the sleeve, then control the lifting oil cylinder to contract, so that the lifting rail descends, and slide the lifting tool above the sleeve. Adjust the distance between the first clamp and the second clamp according to the length of the sleeve, and then rotate the handwheel to clamp the sleeve with the clamping arms. Since the fixed clamping block is in an inverted Y-shaped structure, after the clamping arms hold the sleeve tightly, the sleeve is automatically centered in the fixed clamping block. After the sleeve is clamped, control the lifting oil cylinder to extend, slowly lift the sleeve off the ground, then rotate the arc-shaped cover plate by a certain degree, so that the two arc-shaped cover plates surround the sleeve, and tighten the clamping screw to clamp the sleeve on both sides of the sleeve with the clamping plate. When the arc-shaped cover plate rotates, the first clamp or the second clamp rotates with the arc-shaped cover plate, so that the first clamp and the second clamp also hold the sleeve tightly on both sides of the sleeve, ensuring the stability of the sleeve clamping.

[0040] Continue to control the lifting oil cylinder to extend, lift the sleeve to a height higher than the height of the transformer, then control the piston rod of the flipping oil cylinder to extend, and at the same time control the piston rod of the auxiliary oil cylinder to contract, and use the connecting plate to flip the sleeve in the vertical direction. According to the installation angle of the sleeve, then control the piston rod of the rotating oil cylinder to extend and contract, and use the rack to drive the rotating shaft to rotate, so as to drive the sleeve to rotate in the horizontal direction to the installation angle, and then control the lifting oil cylinder to slowly contract to install the sleeve on the transformer. The whole process of disassembling and installing the sleeve only requires one person to complete, reducing the input of human resources and the labor intensity of the operators.

[0041] However, after analysis, the above patent needs to be used in combination with a gantry, so it can only be used in the ground area of the platform; and there will be a large number of operations on the platform or in the wild during the convenient layout. The wild environment is harsh and the terrain is rugged, which is not convenient for the passage of the gantry and affects the scope of use.

[0042] Refer to Figures 1 - 5As shown, this embodiment provides a transformer bushing hoisting device, comprising a fixed block 1 detachably connected to a hoisting device, a connecting block 2 is rotatably connected to the bottom end of the fixed block 1, a clamping assembly for grasping the transformer bushing 3 is arranged at the bottom end of the connecting block 2, a driving assembly is arranged at the bottom end of the connecting block 2, and the driving assembly is transmission-connected to the clamping assembly;

[0043] The clamping assembly includes a plurality of clamping plates 4 which are hinged at the lower end of the connecting block 2 at equal intervals, and the driving assembly is drivingly connected to the inner wall of the clamping plate 4;

[0044] A clamping block 5 is fixedly connected to the bottom end of the clamping plate 4, and a plurality of clamping rods 6 are telescopically arranged on the side wall of the clamping block 5. The ends of the clamping rods 6 are rotatably connected to contact blocks 7, and the contact blocks 7 are arranged in contact with the outer wall of the transformer bushing 3;

[0045] A control component is disposed in the fixed block 1 , and the control component is electrically connected to the driving component.

[0046] The present invention discloses a transformer bushing hoisting device, wherein a fixing block 1 is stably connected to a hoisting device, and a connecting block 2 equipped with a clamping assembly and a driving assembly is rotatably connected to the bottom end of the fixing block 1, so that the lifted transformer bushing 3 can be rotated at multiple angles and the installation angle can be adjusted conveniently; the driving assembly is transmission-connected to the clamping assembly, and the opening and closing of the clamping assembly can be controlled by the driving assembly, so as to clamp and release the transformer bushing 3, and the clamping is stable, thereby improving the safety of the hoisting; the clamping assembly comprises a plurality of clamping plates 4 hinged at the bottom end of the connecting block 2, and the plurality of clamping plates 4 are equally spaced around the outer wall of the transformer bushing 3, and the driving assembly can control the opening and closing of the clamping plates 4, so as to clamp and release the clamping plates 4 Approaching or moving away from the transformer bushing 3, thereby clamping and loosening the transformer bushing 3; during clamping, the clamping rod 6 telescopically arranged on the clamping block 5 drives the contact block 7 to press against the transformer bushing 3, thereby causing the contact block 7 to deflect, so that a number of contact blocks 7 can press against the outer wall of the circular transformer bushing 3 respectively, so that the clamping of transformer bushings 3 of different specifications is more stable; the control component is arranged in the fixed block 1, which is used to control the operation of the hoist, so that the hoist can automatically operate according to the preset program, so that the clamping of the transformer bushing 3 is automated and intelligent, and at the same time, the vibration and deflection angle of the transformer bushing 3 during the hoisting process are detected, thereby realizing the control of the vibration amplitude. The present invention has a compact structure, can be applied to the clamping and hoisting of transformer bushings 3 of different specifications, the clamping force is verified, the stability is high, the automation and intelligence of the hoist is improved, the damage during the hoisting process is reduced, and the safety level of on-site operations is improved.

[0047] For a further optimized solution, a number of clamping holes 8 adapted to the clamping rods 6 are provided on the side wall of the clamping block 5. The clamping rods 6 are slidably connected in the clamping holes 8, and a clamping spring 9 is arranged between the clamping rods 6 and the clamping holes 8. The clamping rods 6 are slidably connected in the clamping holes 8. When not working, the clamping spring 9 pushes the clamping rods 6 in the clamping block 5 to extend out of the clamping holes 8; when clamping, the bottom end of the clamping plate 4 drives the clamping block 5 to move towards the transformer bushing 3, so that the contact block 7 moves with the transformer bushing 3, and then pushes the clamping rod 6 to move towards the clamping hole 8 and compresses the clamping spring 9; and because the outer wall of the transformer bushing 3 is irregular, the compression degrees of several clamping springs 9 are different. At the same time, the deflection of the contact block 7 can contact the irregular outer wall of the outer wall of the transformer bushing 3, improving the clamping stability of transformer bushings 3 of different specifications.

[0048] In an embodiment of the present application, a flexible contact layer 32 is provided on the side of the contact block 7 facing the transformer bushing 3, and anti-slip lines for anti-slip are provided on the contact surface between the contact layer 32 and the transformer bushing 3. This design avoids the hard contact between the contact block 7 and the transformer bushing 3, so that the outer wall of the transformer bushing 3 will not be damaged during stable clamping, and the use of the transformer bushing 3 will not be affected.

[0049] For a further optimized solution, a first pressure sensor 10 is embedded in the clamping hole 8, the clamping spring 9 abuts against the first pressure sensor 10, and the first pressure sensor 10 is electrically connected to the driving component. The first pressure sensor 10 is used to measure the clamping force between the contact block 7 and the transformer bushing 3 and monitor the stability of the clamping. During use, it is necessary to control the clamping force between the contact block 7 and the transformer bushing 3 on the same clamping block 5 to be within a controllable range, that is, to ensure the stability of the clamping and avoid damaging the transformer bushing 3 due to excessive clamping force.

[0050] For a further optimized solution, the driving component includes a driving motor 11 fixedly installed at the bottom end of the connecting block 2. The driving motor 11 is drivingly connected with a driving screw rod 12. A driving block 13 is threadedly connected to the driving screw rod 12, and a driving support rod 31 is arranged between the driving block 13 and the clamping plate 4. A driving groove 14 is provided at the bottom end of the connecting block 2, and the driving motor 11 is installed in the driving groove 14; when clamping and releasing the transformer bushing 3, the driving motor 11 rotates forward or backward, so that the driving block 13 rises or falls, and then adjusts the supporting angle of the driving support rod 31 hinged and supported between the driving block 13 and the clamping plate 4, which can drive the bottom end of the clamping plate 4 to approach or move away from the transformer bushing 3.

[0051] In a further optimized solution, a plurality of connection plates 15 adapted to the clamping plate 4 are fixedly connected to the bottom of the connection block 2 at equal intervals, and the top of the clamping plate 4 is hinged to the bottom of the connection plate 15. The top of the clamping plate 4 is hinged to the bottom of the connection block 2 through a hinge shaft, so that the top of the clamping plate 4 is positioned, and the loading of the transformer bushing 3 itself acts on the connection block 2 through the hinge shaft.

[0052] In a further optimized solution, a fixing groove 16 is provided at the bottom end of the fixing block 1, a rotating motor 17 electrically connected to the control assembly is fixed in the fixing groove 16, and the output shaft of the rotating motor 17 extends out of the fixing groove 16 and is drivingly connected to the top end of the connecting block 2. The rotating motor 17 in the fixing groove 16 can drive the connecting block 2 to rotate at the bottom end of the fixing block 1, and then drive the transformer bushing 3 to rotate under the control of the control assembly.

[0053] Further optimization scheme, the top of the connection block 2 is provided with a ring-shaped connection groove 18, and a plurality of connection heads 19 are slidably connected in the connection groove 18 at equal intervals, and the top of the connection head 19 extends out of the connection groove 18 and is fixedly connected to the bottom end of the fixed block 1. The connection head 19 and the connection groove 18 are both inverted T-shaped arrangements, which can disperse the pulling force of the connection block 2 on the fixed block 1 and improve stability; at the same time, it can also serve as a rotation positioning of the connection block 2 to reduce shaking.

[0054] Further optimization scheme, a second pressure sensor 20 is embedded and installed at the top of the connector 19, the second pressure sensor 20 is in contact with a connecting frame 21 movably connected to the bottom of the connector 19, and a plurality of rollers 22 are arranged between the connecting frame 21 and the connecting groove 18. The connecting frame 21 installs a plurality of rollers 22 between the top of the cross beam of the connector 19 and the connecting groove 18, so as to reduce the friction between the connector 19 and the connecting groove 18 and improve the smoothness of rotation; at the same time, the second pressure sensor 20 is used to measure the pressure between the connecting frame 21 and the connecting groove 18, and the trend and direction of the hoisting tilt can be judged by comparing the pressure values ​​between the second pressure sensors 20 in different directions, so as to realize the control of the inclination angle during the hoisting process.

[0055] Further optimization scheme, the control component includes a mounting slot 23 opened at the top of the fixed block 1, and the mounting slot 23 is provided with an electrically connected control module 24, a power supply module 25 and a remote information interaction module 26, and the control module 24 is electrically connected to the drive motor 11 and the rotary motor 17 respectively. The control module 24 can be pre-programmed to control the operation of the hoisting equipment through the measurement values ​​of the first pressure sensor 10 and the second pressure sensor 20; the power supply module 25 can supply power for the operation of the equipment, and a battery with a charging function can be used; and the remote information interaction module 26 can be connected to the mobile terminal in the hands of the operator through a wireless network or a wireless network, and the operating parameters can be transmitted to the mobile pile end, and instructions can also be issued through the mobile terminal, which is convenient to use.

[0056] In an embodiment of the present application, a vibration sensor and an inclination sensor electrically connected to the control module 24 are provided between the clamping plate 4 and the connecting plate 15. When lifting an object during hoisting, the vibration sensor and the inclination sensor start to continuously sense the state between the clamping plate 4 and the connecting plate 15, and transmit the sensed data back to the mobile terminal through the remote information interaction module 26. The mobile terminal makes a real-time judgment on the received data. When the set threshold is exceeded, an alarm sound is issued for the on-site operation to remind the operator.

[0057] In a further optimized solution, a hinge seat 27 is provided on the inner wall of the clamping plate 4, and the driving strut 31 is rotatably connected to the hinge seat 27; a plurality of hinge grooves 28 are provided on the side wall of the driving block 13, and the driving strut 31 is rotatably connected in the hinge grooves 28. The driving strut 31 is hinged between the hinge seat 27 and the hinge grooves 28, which is convenient for connection; a bearing can be used for connection during connection to reduce the resistance of deflection.

[0058] In an embodiment of the present application, the top end of the fixed block 1 is connected with a cover plate 29 through a plurality of connecting bolts, which is used to cover the installation groove 23 to protect the internal control module 24, power supply module 25 and remote information interaction module 26; and a connecting ear 30 is fixedly connected to the top end of the cover plate 29, which is convenient for connection with the hoisting equipment.

[0059] In an embodiment of the present application, the vibration sensor is installed between the clamping plate 4 and the connecting plate 15, and the internal sensitive element senses the vibration of the object and converts the vibration signal into an electric signal to ensure that the vibration during hoisting does not exceed 1g; the inclination sensor ensures that the transformer bushing 3 falls vertically and the inclination angle does not exceed 5 degrees.

[0060] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0061] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention should fall within the protection scope determined by the claims of the present invention.

Claims

1. A transformer bushing lifting device, characterized in that: It comprises a fixed block (1) detachably connected to a lifting device, the bottom end of the fixed block (1) being rotatably connected to a connecting block (2), the bottom end of the connecting block (2) being provided with a clamping assembly for gripping a transformer bushing (3), the bottom end of the connecting block (2) being provided with a driving assembly, the driving assembly being in transmission connection with the clamping assembly; The clamping assembly comprises a plurality of clamping plates (4) hinged at equal intervals on the lower end of the connecting block (2), and the driving assembly is drivingly connected to the inner wall of the clamping plates (4); The bottom end of the clamping plate (4) is fixedly connected with a clamping block (5), the side wall of the clamping block (5) is telescopically provided with a plurality of clamping rods (6), the ends of the clamping rods (6) are rotatably connected with contact blocks (7), and the contact blocks (7) are arranged in contact with the outer wall of the transformer bushing (3); A control component is arranged inside the fixed block (1), and the control component is electrically connected to the drive component.

2. The transformer bushing lifting device according to claim 1, characterized in that: The side wall of the clamping block (5) is provided with a plurality of clamping holes (8) matched with the clamping rod (6), the clamping rod (6) is slidably connected in the clamping hole (8), and a clamping spring (9) is provided between the clamping rod (6) and the clamping hole (8).

3. The transformer bushing lifting device according to claim 2, characterized in that: A first pressure sensor (10) is embedded in the clamping hole (8), the clamping spring (9) abuts against the first pressure sensor (10), and the first pressure sensor (10) is electrically connected to the driving component.

4. The transformer bushing hoisting device according to claim 1, characterized in that: The driving assembly comprises a driving motor (11) fixedly mounted at the bottom end of the connecting block (2); the driving motor (11) is drivingly connected to a driving screw (12); a driving block (13) is threadedly connected to the driving screw (12); and a driving support rod (31) is provided between the driving block (13) and the clamping plate (4).

5. The transformer bushing hoisting device according to claim 1, characterized in that: A plurality of connection plates (15) adapted to the clamping plate (4) are fixedly connected at equal intervals to the bottom end of the connection block (2); the top end of the clamping plate (4) is hinged to the bottom end of the connection plate (15).

6. The transformer bushing hoisting device according to claim 4, characterized in that: A fixing groove (16) is provided at the bottom end of the fixing block (1), a rotating motor (17) electrically connected to the control component is fixedly connected in the fixing groove (16), and an output shaft of the rotating motor (17) extends out of the fixing groove (16) and is drivingly connected to the top end of the connecting block (2).

7. The transformer bushing hoisting device according to claim 6, characterized in that: The top end of the connecting block (2) is provided with an annular connecting groove (18), a plurality of connecting heads (19) are slidably connected in equal intervals in the connecting groove (18), and the top ends of the connecting heads (19) extend out of the connecting groove (18) and are fixedly connected to the bottom end of the fixing block (1).

8. The transformer bushing hoisting device according to claim 7, characterized in that: A second pressure sensor (20) is embedded and installed at the top end of the connecting head (19), and the second pressure sensor (20) is in contact with a connecting frame (21) movably connected to the bottom end of the connecting head (19), and a plurality of rollers (22) are provided between the connecting frame (21) and the connecting groove (18).

9. The transformer bushing hoisting device according to claim 6, characterized in that: The control assembly comprises a mounting groove (23) provided at the top of the fixed block (1), wherein an electrically connected control module (24), a power supply module (25) and a remote information interaction module (26) are arranged in the mounting groove (23), and the control module (24) is electrically connected to the drive motor (11) and the rotating motor (17), respectively.

10. The transformer bushing hoisting device according to claim 4, characterized in that: The inner wall of the clamping plate (4) is provided with a hinge seat (27), and the driving strut (31) is rotatably connected to the hinge seat (27); the side wall of the driving block (13) is provided with a plurality of hinge grooves (28), and the driving strut (31) is rotatably connected in the hinge grooves (28).

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