Climbing device for high-voltage bushing of transformer

Abstract

The invention discloses a transformer high-voltage bushing climbing device which is characterized in that two bottom locking assemblies are respectively arranged on two opposite sides of a high-voltage bushing, two stable pipe fittings respectively penetrate through first sleeving pipes of the two bottom locking assemblies in a one-to-one correspondence manner for stable limiting, and two first locking rods respectively penetrate through first limiting lugs of the two bottom locking assemblies in a one-to-one correspondence manner for locking; the second locking rod respectively penetrates through the second limiting lugs of the two bottom locking assemblies for locking, so that the two first hoops on the two bottom locking assemblies are respectively clamped on the two opposite sides of the high-voltage bushing; and the two second hoops on the two bottom locking assemblies are locked, and the two second hoops on the two bottom locking assemblies are clamped on the two opposite sides of the high-voltage bushing correspondingly. By means of the climbing device for the high-voltage bushing of the transformer, the operation safety coefficient and efficiency of operators can be improved; the structure is simple, and cost control is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of transformer substation auxiliary tools, and in particular to a transformer high-voltage bushing climbing device. Background Art

[0002] In the prior art, the height of the 220kV main transformer bushing is generally about 2.5 meters, with a certain inclination angle. At present, when dealing with the work related to the 220kV transformer bushing, people generally climb the porcelain bushing manually, which poses a high risk to personal and equipment safety. Especially for some high-voltage porcelain bushings with a large inclination angle, climbing poses a higher risk to personal and equipment safety, resulting in low work efficiency and high risk factor.

[0003] At the same time, with the development of the power system, the requirements for transformer explosion safety are getting higher and higher. In recent years, for the overhaul and replacement of 220kV main transformers in the city center, silicone rubber composite shed dry bushings with high explosion safety factors have gradually been considered. Compared with porcelain bushings, the sheds of this bushing cannot withstand human climbing. Therefore, it is difficult to carry out heating of bushing joints and pre-testing of main transformers. Usually, elevated work vehicles or scaffolding are used, which are costly and inefficient. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a transformer high-voltage bushing climbing device, which can improve the operating safety factor and efficiency of operators; the structure is simple and conducive to cost control.

[0005] In order to solve the above technical problems, the present invention provides a transformer high-voltage bushing climbing device, which is used for climbing the transformer high-voltage bushing to handle heating joints or test operations, and is characterized in that it includes: two bottom locking assemblies detachably installed on the high-voltage bushing, a base fixing member installed between the two bottom locking assemblies, and an insulating ladder assembly, the insulating ladder assembly includes: an insulating ladder body and an insulating support rod connected to the insulating ladder body; the bottom locking assembly includes: a fixed bushing, a telescopic tube body connected to one end of the fixed bushing, a first clamp connected to the bottom of the fixed bushing and a second clamp connected to the top of the fixed bushing, the opposite ends of the fixed bushing are provided with a first sleeve tube and a first limiting ear, and one end of the telescopic tube body is provided with a second limiting ear, wherein: the two bottom locking assemblies are respectively arranged on the opposite sides of the high-voltage bushing, and the two stabilizing pipes correspond to each other and pass through the two bottom locking assemblies respectively. The first sleeve is used for stabilization and limiting, the two first locking rods are passed through the first limiting ears of the two bottom locking assemblies for locking respectively, and the second locking rods are passed through the second limiting ears of the two bottom locking assemblies for locking respectively, and the two first clamps on the two bottom locking assemblies are clamped on the opposite sides of the high-voltage bushing respectively; the two second clamps on the two bottom locking assemblies are locked, and the two second clamps on the two bottom locking assemblies are clamped on the opposite sides of the high-voltage bushing respectively, wherein: a first base is provided at the bottom end of the insulating ladder body, the first base is connected to the base fixing piece, the base fixing piece is sleeved with the stabilizing pipe fitting, and the bottom end of the insulating ladder body is detachably connected to the base fixing piece and one end of the two bottom locking assemblies respectively; a second base is provided at the bottom end of the insulating support rod, the second base is sleeved on the second locking rod, and the bottom end of the insulating support rod is detachably connected to the other end opposite to the two bottom locking assemblies.

[0006] Among them, the second clamp includes: a second clamp body, two first sleeves welded on opposite sides of the second clamp body, two threaded steel columns and two telescopic columns connected to the two threaded steel columns in a one-to-one correspondence; two second sleeves are provided on the fixed sleeve, wherein: the two threaded steel columns are screwed into the two first sleeves in a one-to-one correspondence, and the two telescopic columns are telescopically sleeved in the two second sleeves in a one-to-one correspondence, wherein: the two second clamps on the two bottom locking assemblies are locked by multiple first locking screws.

[0007] The threaded steel column vertically passes through the first sleeve, and the telescopic column can slide along the second sleeve; the position of the second clamp body on the two first sleeves is set to be adjustable and locked by the first nut.

[0008] The invention also includes: two reinforcing components which are detachably connected to the two bottom locking components in a one-to-one correspondence; The reinforcement component includes: two screw sleeves, two support columns corresponding to the two screw sleeves, a hoop that can be fastened to the bottom of the support column, and a plurality of pads installed on the inner side of the hoop, wherein: the two reinforcement components are respectively arranged on the opposite sides of the high-voltage bushing, and the plurality of pads are clamped on the opposite sides of the high-voltage bushing by adjusting the tightening range of the hoop.

[0009] The screw sleeve is vertically welded between the fixed sleeve and the first clamp; the position of the support column on the screw sleeve is adjustable and is locked by the second nut; and rubber pads are respectively provided on the inner sides of the plurality of cushion blocks.

[0010] The ferrule is composed of two semi-arc round steels, one end of the two semi-arc round steels is connected by a second locking screw, and the other end of the two semi-arc round steels is fastened and locked by a third locking screw.

[0011] Among them, clamp locking screws are arranged at multiple locations on the first clamp, the end of the second locking rod is connected with a fourth locking screw, and the end of the stabilizing pipe is connected with a latch.

[0012] The bottom end of the insulating ladder body is inserted into the first base and locked by the first fastening bolt; the bottom end of the insulating support rod is provided with a plurality of adjustment holes, and the second fastening bolt is locked after passing through the second base and any adjustment hole in sequence.

[0013] Among them, a cross-slanted brace is provided on the insulating support rod, one end of the cross-slanted brace is fixed to the insulating support rod by a rivet, and the other end opposite is fixed to the insulating support rod by a hinge; the insulating ladder body and the insulating support rod are fastened by a metal connector.

[0014] Among them, the first base and the base fixing part, the base fixing part and the stabilizing pipe fitting are respectively limited by limiting bolts; the fixing sleeve and the telescopic tube body are fastened by locking top screws; the second base and the second locking rod are fastened by the fifth locking screw.

[0015] The transformer high-voltage bushing climbing device of the present invention has the following beneficial effects: the two bottom locking assemblies are respectively arranged on the opposite sides of the high-voltage bushing, the two stabilizing pipes are respectively passed through the first sleeve pipes of the two bottom locking assemblies in a one-to-one correspondence to be stabilized and limited, the two first locking rods are respectively passed through the first limiting ears of the two bottom locking assemblies in a one-to-one correspondence to be locked, the second locking rods are respectively passed through the second limiting ears of the two bottom locking assemblies to be locked, the two first clamps on the two bottom locking assemblies are respectively clamped on the opposite sides of the high-voltage bushing; the two second clamps on the two bottom locking assemblies are locked, and the two bottom locking assemblies are locked. The two second clamps on the assembly are respectively clamped on the opposite sides of the high-voltage bushing, wherein: a first base is provided at the bottom end of the insulating ladder body, the first base is connected to the base fixing piece, the base fixing piece is sleeved with the stabilizing pipe fitting, the bottom end of the insulating ladder body is detachably connected to the base fixing piece and one end of the two bottom locking assemblies respectively; a second base is provided at the bottom end of the insulating support rod, the second base is sleeved on the second locking rod, the bottom end of the insulating support rod is detachably connected to the other end opposite to the two bottom locking assemblies, which can improve the safety factor and efficiency of the operation of the operating personnel; the structure is simple, which is conducive to cost control. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of the transformer high-voltage bushing climbing device from a first perspective according to an embodiment of the present invention.

[0018] Figure 2 It is a structural schematic diagram of the transformer high-voltage bushing climbing device from a second perspective according to an embodiment of the present invention.

[0019] Figure 3 It is a structural schematic diagram of the transformer high-voltage bushing climbing device from a third perspective according to an embodiment of the present invention.

[0020] Figure 4 It is a structural schematic diagram of the transformer high-voltage bushing climbing device from a fourth perspective according to an embodiment of the present invention.

[0021] Figure 5 It is a structural schematic diagram of the transformer high-voltage bushing climbing device from the fifth perspective according to an embodiment of the present invention. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] like Figure 1-Figure 5 The figure shows the first embodiment of the transformer high voltage bushing climbing device of the present invention.

[0024] The transformer high-voltage bushing climbing device in this embodiment is used to climb the transformer high-voltage bushing to handle heating joints or test operations, including: two bottom locking components detachably mounted on the high-voltage bushing, a base fixing member 4 mounted between the two bottom locking components, and an insulating ladder component, the insulating ladder component including: an insulating ladder body 1 and an insulating support rod 8 connected to the insulating ladder body 1.

[0025] The bottom locking assembly includes: a fixed sleeve 34, a telescopic tube body 37 connected to one end of the fixed sleeve 34, a first clamp 35 connected to the bottom of the fixed sleeve 34 and a second clamp connected to the top of the fixed sleeve 34, a first sleeve tube 6 and a first limiting ear 20 are provided at opposite ends of the fixed sleeve 34, and a second limiting ear 30 is provided at one end of the telescopic tube body 37.

[0026] Wherein: the two bottom locking assemblies are respectively arranged on the opposite sides of the high-voltage bushing, the two stabilizing pipes 11 are respectively passed through the first sleeve pipes 6 of the two bottom locking assemblies for stable limiting, the two first locking rods 21 are respectively passed through the first limiting ears 20 of the two bottom locking assemblies for locking, the second locking rods 28 are respectively passed through the second limiting ears 30 of the two bottom locking assemblies for locking, and the two first clamps 35 on the two bottom locking assemblies are respectively clamped on the opposite sides of the high-voltage bushing; the two second clamps on the two bottom locking assemblies are locked, and the two second clamps on the two bottom locking assemblies are respectively clamped on the opposite sides of the high-voltage bushing.

[0027] Among them: a first base 3 is provided at the bottom end of the insulating ladder body 1, the first base 3 is connected to the base fixing member 4, the base fixing member 4 is sleeved with the stabilizing tube 11, and the bottom end of the insulating ladder body 1 is detachably connected to the base fixing member 4 and one end of the two bottom locking components respectively; a second base 24 is provided at the bottom end of the insulating support rod 8, the second base 24 is sleeved on the second locking rod 28, and the bottom end of the insulating support rod 8 is detachably connected to the other end opposite to the two bottom locking components.

[0028] In a specific implementation, the insulating ladder body 1 is an insulating ladder commonly used in power safety tools, and its material is glass fiber reinforced plastic. The insulating ladder body 1 is connected to the top of the insulating support rod 8 through a metal connector 7.

[0029] The first base 3 is formed by welding a rectangular square steel tube and a round steel tube in an "I" shape, and the bottom end of the insulating ladder body 1 is inserted into the first base 3 and locked by the first fastening bolt 2. The base fixing part 4 is formed by welding a round steel tube and a rectangular steel tube in parallel, wherein the round steel tube is sleeved on the round steel tube of the first base 3 and is inseparable from the first base 3, but can be rotated and swung left and right.

[0030] The rectangular steel pipe is sleeved on the stabilizing pipe 11, and can be separated from the stabilizing pipe 11 and can swing left and right. Since the base fixing part 4 can swing left and right, after adjusting the position of the insulating ladder body 1, the limiting bolts 5 need to be used to fasten and fix the position of the first base 3, that is, the first base 3 and the base fixing part 4, the base fixing part 4 and the stabilizing pipe 11 are limited by the limiting bolts 5 respectively.

[0031] Furthermore, the insulating support rod 8 is made of glass fiber reinforced plastic, an insulating material permitted by electric safety tools, and a cross-bracing rod 18 is designed in the middle and lower part to stabilize the insulating rod. The upper end of the insulating support rod 8 is fixed to the insulating support rod 8 by a rivet 17, which is movable but not removable, and the intersection and the lower end are fixed by a hinge 19, which is removable. The purpose is that when the insulating support rod 8 is initially adjusted in position on the insulating ladder body 1, the insulating support rod 8 can directly pass over the sleeve and be inserted into the second base 24, and then the cross-bracing rod 18 can be installed.

[0032] Furthermore, a plurality of adjustment holes 22 are designed at the bottom of the insulating support rod 8, and the purpose is to assemble and cooperate with the second base 24 and the telescopic tube 37 to change the angle between the insulating ladder body 1 and the insulating support rod 8, so as to cope with the inclination angles of different high-voltage bushings, and to maximize the support strength of the insulating ladder body 1 and ensure safety. After the optimal angle is adjusted, the second fastening bolt 23 passes through the second base 24 and the adjustment hole 22, and the insulating support rod 8 and the second base 24 are fastened, that is, the second fastening bolt 23 passes through the second base 24 and any adjustment hole 22 in turn and is locked.

[0033] Preferably, the second base 24 and the second locking rod 28 are fastened by a fifth locking screw 29. In implementation, the second base 24 is formed by two rectangular square steel pipes welded in an "I" shape, the longer rectangular square steel pipe is welded in parallel with the circular steel pipe, and the circular steel pipe is sleeved on the second locking rod 28, and can be rotated, swung, or separated from the second locking rod 28. Therefore, after the insulating support rod 8 is adjusted in position, the fifth locking screw 29 is required to lock the second base 24.

[0034] Furthermore, the fixed sleeve 34 and the first clamp 35 are welded in parallel at the middle position, and the fixed sleeve 34 is sleeved on the telescopic tube body 37. The telescopic tube body 37 is telescopically adjusted to cooperate with the insulating ladder body 1 and the insulating support rod 8. The telescopic tube body 37 is locked by locking the top screw 26. The nuts of the locking top screw 26 are respectively welded to the outer side surfaces of the ends of the two fixed sleeves 34, instead of directly tapping the fixed sleeves 34. The purpose is to take into account the higher locking strength of the nut, and the locking force for locking the telescopic tube body 37 is greater and safer.

[0035] Furthermore, the first sleeve pipes 6, a total of 4 pieces, are respectively parallel to each other and vertically cross-welded with the fixed sleeve 34 just above the end, and then two stabilizing pipes 11 pass through the first sleeve pipes 6 in parallel, the purpose of which is to make the stable fixed sleeve 34 move only in a straight line when the spacing changes, without distortion and deformation, so that the first clamp 35 is stable, firm and safe when clamping the transformer high-voltage bushing lifting seat. A metal square sheet is welded on one end of the stabilizing pipe 11, and a latch 25 is designed on the other end to prevent the stabilizing pipe 11 from slipping off the bottom first sleeve pipe 6, that is, the stabilizing pipe 11 can only be inserted into the first sleeve pipe 6 from one side, and then the latch 25 is inserted.

[0036] During implementation, the first limiting ears 20, a total of four, are parallel to each other and vertically cross-welded with the fixed sleeve 34 near the top of the first sleeve pipe 6, and the first locking rod 21 passes through the first limiting ears 20, tightens the nut, and locks the fixed sleeve 34. That is, the stabilizing pipe 11 only provides a stable moving direction for the fixed sleeve 34, and the first locking rod 21 provides clamping force for the fixed sleeve 34 and the first clamp 35.

[0037] Furthermore, the second clamp includes: a second clamp body 15, two first sleeves 14 welded on opposite sides of the second clamp body 15, two threaded steel columns 12, and two telescopic columns 10 connected to the two threaded steel columns 12 in a one-to-one correspondence; two second sleeves 9 are provided on the fixed sleeve 34, wherein: the two threaded steel columns 12 are screwed in the two first sleeves 14 in a one-to-one correspondence, and the two telescopic columns 10 are telescopically sleeved in the two second sleeves 9 in a one-to-one correspondence, wherein: the two second clamps on the two bottom locking assemblies are locked by multiple first locking screws 16.

[0038] The threaded steel column 12 vertically passes through the first sleeve 14 , and the telescopic column 10 can slide along the second sleeve 9 ; the position of the second clamp body 15 on the two first sleeves 14 is set to be adjustable and locked by the first nut 13 .

[0039] During implementation, the second sleeves 9, a total of 4, are respectively parallel to the fixed sleeves 34 and vertically cross-welded at the top of the middle position, and the telescopic columns 10, a total of 4, are parallel to the second sleeves 9 and welded at right angles to the threaded steel columns 12. The first sleeves 14, a total of 4, are parallel to each other and welded on both sides of the second clamp body 15. The threaded steel columns 12 vertically pass through the first sleeves 14, and the height of the second clamp body 15 is adjusted and locked by the upper and lower first nuts 13. The second clamp body 15 is clamped by 4 first locking screws 16.

[0040] The function of the second clamp body 15 is to fix the metal position at the bottom of the high-voltage bushing. Since there is a small difference in the height of the metal position at the bottom of different high-voltage bushings, the second clamp body 15 is sleeved on the threaded steel column 12 and can move up and down to match the metal part at the bottom of the high-voltage bushing. After the position is determined, the locking position is tightened by the upper and lower first nuts 13, and then the first locking screw 16 is tightened. The second clamp body 15 clamps the metal part at the bottom of the high-voltage bushing. During the clamping and moving process of the second clamp body 15, the telescopic column 10 moves in a straight line in the second sleeve 9. After tightening, under the action of the second clamp body 15, the telescopic column 10 and the threaded steel column 12, the two sides of the fixed sleeve 34 are not pried, that is, the climbing tool base has two fixed points, the second clamp body 15 and the first clamp 35, so the installation of the climbing tool base will be more firm and safe.

[0041] Furthermore, the second limiting ears 30, a total of two, are respectively welded vertically and cross-welded with the telescopic tube 37 just above the end position, and the second locking rod 28 passes through the second limiting ears 30 and the second base 24 to provide support for the second base 24. In order not to affect the change in the spacing between the two telescopic tubes 37, one end is welded with the original sheet, and the other end is installed with the fourth locking screw 27 to prevent the second locking rod 28 from being separated from the second limiting ears 30.

[0042] The second base 24 is sleeved on the second locking rod 28 and can rotate and swing, but after the position is adjusted, it is fastened by the fifth locking screw 29.

[0043] The first clamp 35 is designed with 6 clamp locking screws 38, and the nuts thereof are not attached to the outer arc surface of the first clamp 35, but have an angle of 7° at the upper end, so that the clamp locking screws 38 can be tightened and moved obliquely upward. The purpose is that when the first clamp 35 is installed on the high-voltage bushing lifting seat with an outer flange, the first clamp 35 can be tightened obliquely upward by the clamp locking screws 38, so that the installation of the climbing tool base will be more secure. In addition to the two fixed points, the second clamp body 15 and the first clamp 35 are fixed by friction, and an additional fixing method is added by screw buckle. If it is installed on the high-voltage bushing lifting seat without an outer flange, the clamp locking screws 38 can also be used to compensate for the virtual position of the contact surface between the first clamp 35 and the high-voltage bushing lifting seat, increase the contact points, and make the installation of the climbing tool base more secure.

[0044] The transformer high-voltage bushing climbing device in this embodiment further includes: two reinforcement components detachably connected to the two bottom locking components in a one-to-one correspondence; The reinforcement component includes: two screw sleeves 32, two support columns 33 corresponding to the two screw sleeves 32, a hoop 39 that can be fastened to the bottom of the support column 33, and a plurality of pads 41 installed on the inner side of the hoop 39, wherein: the two reinforcement components are respectively arranged on the opposite sides of the high-voltage bushing, and the plurality of pads 41 are clamped on the opposite sides of the high-voltage bushing by adjusting the tightening range of the hoop 39.

[0045] The screw sleeve 32 is vertically welded between the fixed sleeve 34 and the first clamp 35 ; the position of the support column 33 on the screw sleeve 32 is adjustable and is locked by the second nut 31 ; and rubber pads are respectively provided on the inner sides of the plurality of cushion blocks 41 .

[0046] The ferrule 39 is composed of two semi-arc round steels, one end of the two semi-arc round steels is connected by a second locking screw 40 , and the other opposite end of the two semi-arc round steels is fastened and locked by a third locking screw 36 .

[0047] During implementation, the screw sleeve 32 is vertically welded to the gap between the fixed sleeve 34 and the first clamp 35, and the four support columns 33 pass through the screw sleeve 32. The height of the support column 33 is adjusted by the second nut 31. Four arc-shaped pads 41 are welded to the bottom of the support column 33.

[0048] Preferably, rubber pads are attached to the inner arc surfaces of the cushion block 41, the second clamp body 15, and the first clamp 35, so as to increase the contact area and thus increase the friction.

[0049] Furthermore, the bottommost hoop 39 is composed of two semi-arc round steels, one end of which is connected by a second locking screw 40 and the other end is connected by a third locking screw 36.

[0050] The purpose of not using a whole round steel is to facilitate installation. Since the whole round steel has metal elasticity, the hoop 39 needs to be opened and closed during installation, and the metal elasticity needs to be overcome, which is not conducive to installation. Designing this reinforced locking part, it is not necessary to assemble the high-voltage bushing with a small inclination angle or the vertical high-voltage bushing. It is an optional part. For high-voltage bushings with a large inclination angle, especially the bushings without an external flange on the high-voltage bushing riser, considering the friction between the second clamp body 15 and the first clamp 35 at two fixed points, there is a risk of the base detaching. Therefore, consider installing a locking part at the bottom of the high-voltage bushing riser, adjusting the height of the support column 33 by the second nut 31, and then putting the hoop 39 on the arc groove at the bottom of the support column 33, tightening the third locking screw 36, so that the pad 41 is close to the high-voltage bushing riser. In this way, the base of the climbing tool will have 3 fixed points, and when facing a high-voltage bushing with a large inclination angle, it can also be safely and stably installed.

[0051] When the transformer high-voltage bushing climbing device in this embodiment is specifically assembled, the two first clamps 35 are clamped in parallel on the flange surface of the high-voltage bushing lifting seat, and then the two stabilizing pipes 11 are passed in parallel through the four first sleeve tubes 6, the first base 3, and the base fixing member 4, and then the pin 25 is inserted.

[0052] Pass the two first locking rods 21 through the first limiting ears 20 in parallel and then tighten the nuts to clamp the first clamp 35. If the high-voltage bushing lifting seat has an external flange, the clamp locking screws 38 are required to tighten the first clamp 35 obliquely upward. Then move the second clamp body 15 horizontally close to the metal position at the bottom of the high-voltage bushing, adjust the upper and lower first nuts 13, and after the second clamp body 15 is in the best position, tighten the four first locking screws 16 to make the second clamp body 15 clamp the metal column at the bottom of the high-voltage bushing, and the base installation is completed.

[0053] Insert the telescopic tube 37 into the fixed sleeve 34, and then pass the second locking rod 28 through the second limit ear 30 and the second base 24, and lock the fourth locking screw 27. Insert the bottom of the insulating ladder body 1 into the rectangular tube of the first base 3, and insert the first fastening bolt 2 to tighten it. Swing the insulating support rod 8 to the back of the sleeve, insert it into the rectangular tube of the second base 24, adjust the most suitable angle between the insulating ladder body 1 and the insulating support rod 8, align it with the adjustment hole 22, and insert and tighten the second fastening bolt 23. Then tighten the fifth locking screw 29, the limit bolt 5, and the locking top screw 26. Then install the cross diagonal rod 18 and tighten the hinge 19.

[0054] For high-voltage bushings with a larger inclination angle, especially bushings without an external flange on the high-voltage bushing lifting seat, a locking part is added to the lower part of the high-voltage bushing lifting seat, and the height of the support column 33 is adjusted by the second nut 31, and then the hoop 39 is put on the arc groove at the bottom of the support column 33, and the third locking screw 36 is tightened to make the gasket 41 close to the high-voltage bushing lifting seat to increase the fixing point and friction.

[0055] A transformer high-voltage bushing climbing device implementing the present invention has the following beneficial effects: two bottom locking assemblies are respectively arranged on opposite sides of the high-voltage bushing, two stabilizing pipes are respectively passed through the first sleeve pipes of the two bottom locking assemblies in a one-to-one correspondence to be stabilized and limited, two first locking rods are respectively passed through the first limiting ears of the two bottom locking assemblies in a one-to-one correspondence to be locked, and the second locking rods are respectively passed through the second limiting ears of the two bottom locking assemblies to be locked, and the two first clamps on the two bottom locking assemblies are respectively clamped on the opposite sides of the high-voltage bushing; the two second clamps on the two bottom locking assemblies are locked, and the two bottom locking assemblies are locked. The two second clamps on the tightening assembly are respectively clamped on the opposite sides of the high-voltage bushing, wherein: a first base is provided at the bottom end of the insulating ladder body, the first base is connected to the base fixing piece, the base fixing piece is sleeved with the stabilizing pipe fitting, the bottom end of the insulating ladder body is detachably connected to the base fixing piece and one end of the two bottom locking assemblies respectively; a second base is provided at the bottom end of the insulating support rod, the second base is sleeved on the second locking rod, the bottom end of the insulating support rod is detachably connected to the other end opposite to the two bottom locking assemblies, which can improve the safety factor and efficiency of the operation of the operating personnel; the structure is simple, which is conducive to cost control.

Claims

1. A transformer high-voltage bushing climbing device, used for climbing transformer high-voltage bushings to handle heating joints or test operations, characterized in that: include: Two bottom locking assemblies detachably mounted on a high-voltage bushing, a base fixing member (4) mounted between the two bottom locking assemblies, and an insulating ladder assembly, the insulating ladder assembly comprising: an insulating ladder body (1) and an insulating support rod (8) connected to the insulating ladder body (1); The bottom locking assembly comprises: a fixed sleeve (34), a telescopic tube body (37) connected to one end of the fixed sleeve (34), a first clamp (35) connected to the bottom of the fixed sleeve (34), and a second clamp connected to the top of the fixed sleeve (34), the fixed sleeve (34) having a first sleeve tube (6) and a first stop ear (20) at opposite ends, and a second stop ear (30) at one end of the telescopic tube body (37), wherein: The two bottom locking assemblies are respectively arranged on opposite sides of the high-voltage bushing; the two stabilizing pipes (11) are respectively passed through the first sleeve pipes (6) of the two bottom locking assemblies for stabilizing and limiting; the two first locking rods (21) are respectively passed through the first limiting ears (20) of the two bottom locking assemblies for locking; the second locking rods (28) are respectively passed through the second limiting ears (30) of the two bottom locking assemblies for locking; the two first clamps (35) on the two bottom locking assemblies are respectively clamped on the opposite sides of the high-voltage bushing; the two second clamps on the two bottom locking assemblies are locked; the two second clamps on the two bottom locking assemblies are respectively clamped on the opposite sides of the high-voltage bushing, wherein: A first base (3) is provided at the bottom end of the insulating ladder body (1), the first base (3) is connected to the base fixing member (4), the base fixing member (4) is sleeved with the stabilizing pipe member (11), and the bottom end of the insulating ladder body (1) is detachably connected to the base fixing member (4) and one end of the two bottom locking assemblies; A second base (24) is provided at the bottom end of the insulating support rod (8), the second base (24) is sleeved on the second locking rod (28), and the bottom end of the insulating support rod (8) is detachably connected to the other end opposite to the two bottom locking assemblies.

2. The transformer high-voltage bushing climbing device according to claim 1, characterized in that: The second clamp comprises: a second clamp body (15), two first sleeves (14) welded to opposite sides of the second clamp body (15), two threaded steel columns (12), and two telescopic columns (10) connected to the two threaded steel columns (12) in a one-to-one correspondence. The fixed sleeve (34) is provided with two second sleeves (9), wherein: the two threaded steel columns (12) are screwed into the two first sleeves (14) in a one-to-one correspondence, and the two telescopic columns (10) are telescopically sleeved in the two second sleeves (9) in a one-to-one correspondence, wherein: The two second clamps on the two bottom locking assemblies are locked by a plurality of first locking screws (16).

3. The transformer high-voltage bushing climbing device according to claim 2, characterized in that: The threaded steel column (12) vertically passes through the first sleeve (14), and the telescopic column 10 can slide along the second sleeve (9); The position of the second clamp body (15) on the two first sleeves (14) is adjustable and is locked by the first nut (13).

4. The transformer high-voltage bushing climbing device according to claim 1, characterized in that: Also includes: Two reinforcement components detachably connected to the two bottom locking components in one-to-one correspondence; The reinforcement assembly comprises: two screw sleeves (32), two support columns (33) matched one-to-one with the two screw sleeves (32), a hoop (39) capable of being fastened to the bottom of the support column (33), and a plurality of cushion blocks (41) mounted on the inner side of the hoop (39), wherein: The two reinforcement components are respectively arranged on opposite sides of the high-voltage bushing, and the plurality of cushion blocks (41) are clamped on opposite sides of the high-voltage bushing by adjusting the tightening range of the hoop (39).

5. The transformer high-voltage bushing climbing device according to claim 4, characterized in that: The screw sleeve (32) is vertically welded between the fixed sleeve (34) and the first clamp (35); The position of the support column (33) on the screw sleeve (32) is adjustable and is locked by the second nut (31); rubber pads are respectively provided on the inner sides of the plurality of cushion blocks (41).

6. The transformer high-voltage bushing climbing device according to claim 4, characterized in that: The hoop (39) is composed of two semi-arc round steels, one end of the two semi-arc round steels is connected by a second locking screw (40), and the other end of the two semi-arc round steels opposite to each other is fastened and locked by a third locking screw (36).

7. The transformer high-voltage bushing climbing device according to claim 1, characterized in that: The first clamp (35) is provided with clamp locking screws (38) at multiple locations, the end of the second locking rod (28) is connected to a fourth locking screw (27), and the end of the stabilizing pipe (11) is connected to a latch (25).

8. The transformer high-voltage bushing climbing device according to claim 1, characterized in that: The bottom end of the insulating ladder body (1) is inserted into the first base (3) and is fastened by a first fastening bolt (2); The bottom end of the insulating support rod (8) is provided with a plurality of adjustment holes (22), and the second fastening bolt (23) passes through the second base (24) and any adjustment hole (22) in sequence and is then locked.

9. The transformer high-voltage bushing climbing device according to claim 8, characterized in that: The insulating support rod (8) is provided with a cross-bracing rod (18), one end of the cross-bracing rod (18) is fixed to the insulating support rod (8) via a rivet (17), and the other end opposite thereto is fixed to the insulating support rod (8) via a hinge (19); The insulating ladder body (1) and the insulating support rod (8) are fastened by a metal connector (7).

10. The transformer high-voltage bushing climbing device according to claim 1, characterized in that: The first base (3) and the base fixing member (4), and the base fixing member (4) and the stabilizing pipe member (11) are respectively limited by limiting bolts (5); The fixed sleeve (34) and the telescopic tube body (37) are fastened together by means of a locking top screw (26); The second base (24) and the second locking rod (28) are fastened together by a fifth locking screw (29).

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