Sleeve rotating tool of transformer

Abstract

According to the sleeve rotating tool of the transformer, the multiple round rollers are arranged on the arc-shaped supporting face of the first sleeve supporting device, the driving device drives the driving wheel of the transmission device, the first belt drives the driven wheel to rotate, the driven wheel is connected with the flange base through the rotating shaft, and the flange base is detachably connected to the sleeve; therefore, the sleeve is driven to rotate. During use, a sleeve is placed on the round rollers and connected with the flange seat, the transmission device is driven by the driving device so as to control the rotating direction and the rotating angle of the sleeve, the sleeve can be easily rotated through supporting of the round rollers, and an operator can conveniently and comprehensively process the sleeve. And meanwhile, the tensioning device is used for achieving that the first belt is always in a tensioning state in the transmission process, and therefore the device can be suitable for sleeves of different sizes. By the adoption of the tool, the sleeve can be stably supported, and the sleeve can be conveniently rotated.

Description

Technical Field

[0001] The invention belongs to the technical field of auxiliary rotating devices, and in particular relates to a bushing rotating tool for a transformer. Background Art

[0002] In the process of transformer manufacturing and related bushing operations, the storage, inspection and adjustment of bushings before installation are crucial.

[0003] Existing casing racks suffer from limited functionality and limitations. Firstly, they serve only as temporary support structures for the casing. Once the casing is removed from its packaging and placed on the rack, it cannot be rotated. Secondly, the racks are relatively low, making it difficult to inspect the casing's sheds and ensuring a comprehensive inspection of all sides. This, in turn, impacts inspection accuracy and efficiency.

[0004] Furthermore, some casings require temporary adjustments to the oil level gauge's orientation before installation, often requiring the casing to be rotated or turned. However, the casing itself is heavy, and its lifting position and structure are unique. The existing casing rack and fall chain arrangement cannot accommodate this rotational requirement, making efficient casing rotation and adjustment difficult in practice.

[0005] Therefore, how to overcome the above technical defects is a problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0006] The object of the present invention is to provide a bushing rotating tool for a transformer, which can stably support the bushing and facilitate the bushing rotation operation.

[0007] To solve the above technical problems, the present invention provides a transformer bushing rotating tool, comprising a first bushing support device, a plurality of round rollers, a transmission device, a driving device, a fixing device and a tensioning device, wherein the transmission device comprises a driving pulley, a driven pulley and a first belt, and the fixing device comprises a flange seat and a rotating shaft;

[0008] The upper surface of the first sleeve supporting device is provided with an arc-shaped supporting surface, and a plurality of the circular rollers are arranged side by side on the arc-shaped supporting surface, and the circular rollers are used to support the sleeve;

[0009] The driving wheel is connected to the driving shaft of the driving device, the driven wheel is connected to the flange seat via the rotating shaft, the flange seat is used to be detachably connected to the central axis of the sleeve, and the first belt is respectively connected to the driving wheel and the driven wheel;

[0010] The tensioning device is used to ensure that the first belt is always in a tensioned state during the transmission process.

[0011] Optionally, in the above-mentioned transformer bushing rotation tooling, the tensioning device includes an adjustment block, an adjustment roller, a mounting bearing and a fixed shaft;

[0012] The adjustment block is arranged on the first sleeve supporting device, the adjustment roller is arranged on one end of the fixed shaft through the mounting bearing, the other end of the fixed shaft is movably arranged on the adjustment block, and the position of the fixed shaft on the adjustment block is limited by a locking mechanism.

[0013] Optionally, in the above-mentioned transformer bushing rotation tooling, a strip groove is provided on the adjustment block, the other end of the fixed shaft is arranged in the strip groove, and the other end of the fixed shaft limits the position of the fixed shaft on the strip groove through a locking mechanism.

[0014] Optionally, in the above-mentioned transformer bushing rotation tooling, a plurality of mounting holes are arranged on the adjustment block at intervals along the radial direction of the bushing, the other end of the fixed shaft is inserted into the mounting hole corresponding to the adjustment block, and the other end of the fixed shaft is restricted in the mounting hole by a locking mechanism.

[0015] Optionally, in the above-mentioned transformer bushing rotating fixture, one of the drive shaft and the driving wheel is provided with a keyway, and the drive shaft and the driving wheel are connected by a connecting key;

[0016] And / or, one of the fixed shaft and the adjusting roller is provided with a keyway, and the fixed shaft and the adjusting roller are connected via a connecting key.

[0017] Optionally, in the above-mentioned transformer bushing rotation tooling, both ends of the fixed shaft are welded to the driven wheel and the flange seat respectively.

[0018] Optionally, in the above-mentioned transformer bushing rotation tooling, the first bushing support device includes a bushing shelf, the upper surface of the bushing shelf is provided with an arc-shaped support surface, the driving device is installed inside the bushing shelf, and the driving shaft of the driving device passes through the bushing shelf and is connected to the driving wheel.

[0019] Optionally, in the above-mentioned transformer bushing rotation tool, a hand-held portion is provided on the side of the bushing shelf.

[0020] Optionally, in the above-mentioned transformer bushing rotation tool, a plurality of positioning holes are evenly arranged on the flange seat, and the positioning holes are used to connect with a special lifting tool for the bushing.

[0021] Optionally, the above-mentioned transformer bushing rotation tool further includes a manual auxiliary bushing rotation device and a second bushing support device, wherein the manual auxiliary bushing rotation device includes a rotation handle, a second belt, a first rotating roller and two second rotating rollers, the upper surface of the second bushing support device is provided with an arc-shaped support surface, and the plurality of round rollers are arranged side by side on the arc-shaped support surface, and the first bushing support device and the second bushing support device are respectively used to support the two ends of the bushing;

[0022] The first rotating roller is rotatably arranged on the second sleeve supporting device, the rotating handle is installed on the first rotating roller, the two second rotating rollers are rotatably arranged on the upper surface of the second sleeve supporting device and are respectively located on both sides of the several round rollers, the second belt is mounted on the first rotating roller and the two second rotating rollers, and the several round rollers are located on the second belt to assist the sleeve rotation.

[0023] The present invention provides a transformer bushing rotating tool, which has the following beneficial effects:

[0024] By installing several circular rollers on the curved support surface of the first casing support device, the rollers provide stable support and easy rotation of the casing. A drive device drives the driving pulley of the transmission device, which in turn rotates the driven pulley using the first belt. The driven pulley is connected to the flange seat via the rotating shaft of the fixing device. The flange seat is in turn detachably connected to the casing, thereby driving the casing rotation. In scenarios where casing processing or inspection is required, the casing is placed on multiple circular rollers and connected to the flange seat. The drive device drives the transmission device to control the casing's rotation direction and angle. The support of multiple circular rollers allows for easy rotation of the casing, facilitating comprehensive handling by the operator. Furthermore, a tensioning device ensures that the first belt remains tensioned during transmission, making it suitable for casings of different sizes.

[0025] The transformer bushing rotation fixture using the above arrangement can not only stably support the bushing but also facilitate the bushing rotation operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0027] Figure 1 A front view of a transformer bushing rotating tool provided in an embodiment of the present invention;

[0028] Figure 2 A side view of a transformer bushing rotating tool provided in an embodiment of the present invention;

[0029] Figure 3 for Figure 2 A partial schematic diagram of

[0030] Figure 4 A front view of a casing support device provided in an embodiment of the present invention;

[0031] Figure 5 A front view of another form of casing support device provided by an embodiment of the present invention;

[0032] Figure 6 A side view of another form of casing support device provided by an embodiment of the present invention;

[0033] Figure 7 A schematic structural diagram of a circular roller provided in an embodiment of the present invention;

[0034] Figure 8 A schematic structural diagram of a sleeve provided in an embodiment of the present invention.

[0035] In the above picture:

[0036] A1-casing; A2-casing flange;

[0037] 100 - first casing support device; 110 - handheld portion;

[0038] 200-round roller;

[0039] 310-driving pulley; 320-driven pulley; 330-first belt;

[0040] 410-adjusting block; 420-adjusting roller; 430-mounting bearing; 440-fixing shaft; 450-connecting key;

[0041] 510-drive motor; 520-drive shaft;

[0042] 610-flange seat; 620-rotating shaft;

[0043] 710 - rotating handle; 720 - second belt; 730 - first rotating roller; 740 - second rotating roller;

[0044] 800-Second casing support device. DETAILED DESCRIPTION

[0045] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0046] The core of the present invention is to provide a bushing rotating tool for a transformer, which can not only stably support the bushing but also facilitate the rotation operation of the bushing.

[0047] With the continuous improvement of quality control measures in the transformer manufacturing process, higher requirements are placed on the preparatory work and inspection process before bushing installation. In this context, there is an urgent need for a bushing rotation device that can both stably support the bushing and facilitate its rotation. This device can facilitate convenient rotation before installation and during the bushing transfer and placement process to meet product installation requirements. At the same time, it can facilitate operators to conduct a full inspection of the bushing all around during the pre-installation inspection process, thereby greatly reducing the time required for pre-installation inspection and rotation processes, effectively improving actual operational efficiency.

[0048] In order to enable those skilled in the art to better understand the technical solutions provided by the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0049] Specifically, please refer to Figure 1-Figure 7 The present invention provides a transformer bushing rotating tool, which includes a first bushing supporting device 100, a plurality of round rollers 200, a transmission device, a driving device, a fixing device and a tensioning device.

[0050] The transmission device includes a driving pulley 310 , a driven pulley 320 and a first belt 330 , and the fixing device includes a flange seat and a rotating shaft 620 .

[0051] The upper surface of the first casing support device 100 is provided with a smooth arc-shaped support surface, and a plurality of round rollers 200 are arranged side by side on the arc-shaped support surface. The upper surface of the round rollers 200 is used to support the casing A1. Figure 7 During operation, the round roller 200 contacts the casing flange A2 of the casing A1, supporting the casing A1 while reducing the turning resistance when the casing A1 rotates.

[0052] During the bushing A1 rotation process after installation and disassembly of the transformer bushing A1, the bushing A1 can be placed on multiple rollers. With the support of multiple rollers and the assistance of external forces, the bushing A1 can be easily rotated, making it convenient for operators to fully handle the bushing A1.

[0053] It's important to note that, on the one hand, multiple rollers distribute the weight of sleeve A1 over a larger area, effectively reducing local stress and minimizing the risk of structural deformation or damage due to excessive load. On the other hand, multiple rollers create multiple contact points between the bottom of sleeve A1 and the curved support surface, providing more uniform support. Multiple rollers also reduce friction between sleeve A1 and the curved support surface, making it easier to rotate or move sleeve A1.

[0054] The driving pulley 310 is connected to the drive shaft 520 of the drive device, which provides power for the rotation of the driving pulley 310. A first belt 330 is connected to the driving pulley 310 and the driven pulley 320, respectively. The first belt 330 drives the driven pulley 320 to rotate synchronously via the driving pulley 310, providing protection for the overall movement process. The driven pulley 320 is connected to the flange seat 610 via a rotating shaft 620, which is fixedly connected to the central axis of the sleeve A1. The rotation of the driven pulley 320 provides power for the rotation of the sleeve A1.

[0055] The tensioning device is used to ensure that the first belt 330 is always in a tensioned state during the transmission process.

[0056] The present invention provides a transformer bushing rotation tool. A plurality of round rollers 200 are provided on the arc-shaped support surface of the first bushing support device 100. The round rollers 200 are used to achieve stable support and easy rotation of the bushing A1. The driving device drives the driving pulley 310 of the transmission device, and transmits power to the driven pulley 320 through the first belt 330, so that the driven pulley 320 rotates synchronously with the driving pulley 310. The driven pulley 320 is connected to the flange seat 610 through the rotating shaft 620 of the fixing device. The flange seat 610 is further connected to the bushing A1 through a detachable connection, thereby driving the bushing A1 to rotate. In scenarios where the bushing A1 needs to be processed or inspected, the bushing A1 is placed on the plurality of round rollers 200 and connected to the flange seat 610. The driving device drives the transmission device to control the rotation direction and rotation angle of the bushing A1. The support of the plurality of round rollers 200 allows the bushing A1 to rotate easily, making it convenient for the operator to perform comprehensive processing on the bushing A1. At the same time, the tensioning device is used to ensure that the first belt 330 is always in a tensioned state during the transmission process, so that it can be suitable for sleeves A1 of different sizes.

[0057] The transformer bushing rotation fixture with the above arrangement can not only stably support the bushing A1 but also facilitate the rotation operation of the bushing A1.

[0058] In a specific embodiment, the tensioning device includes an adjustment block 410 , an adjustment roller 420 , a mounting bearing 430 , and a fixed shaft 440 .

[0059] The adjustment block 410 is arranged on the first casing support device 100. In one form, the adjustment block 410 can be a component independent of the first casing support device 100. In another form, the adjustment block 410 can also constitute the first casing support device 100, that is, the adjustment block 410 and the first casing support device 100 are an integrally formed structure, or the adjustment block 410 is a part of the first casing support device 100.

[0060] The adjusting roller 420 is mounted on one end of the fixed shaft 440 via a mounting bearing 430, thereby enabling the adjusting roller 420 to rotate relative to the fixed shaft 440. The other end of the fixed shaft 440 is movably mounted on the adjusting block 410. The position of the fixed shaft 440 on the adjusting block 410 is limited by a locking mechanism.

[0061] Furthermore, the adjustment block 410 is provided with a strip-shaped groove, into which the other end of the fixed shaft 440 is positioned. During use, the distance between the driven pulley 320 and the driving pulley 310 is determined based on the required sleeve A1 size. After the fixed shaft 440 is adjusted to the appropriate position within the strip-shaped groove, a locking mechanism is used to restrict the relative position of the other end of the fixed shaft 440 and the strip-shaped groove, ultimately adjusting the tension of the first belt 330.

[0062] Of course, a plurality of mounting holes can also be provided on the adjustment block 410 at intervals along the radial direction of the sleeve A1. During use, the distance between the driven pulley 320 and the driving pulley 310 is determined based on the desired sleeve A1 size. After the fixed shaft 440 is inserted into the corresponding mounting hole and the adjusting roller 420 is adjusted to the appropriate position, the locking mechanism is used to restrict the relative position between the other end of the fixed shaft 440 and the mounting hole, thereby ultimately adjusting the tension of the first belt 330.

[0063] In a specific embodiment, Figure 4 and Figure 5 As shown, the first casing support device 100 includes a casing rack, the upper surface of which is provided with an arc-shaped support surface, a driving device is installed inside the casing rack, and a driving shaft 520 of the driving device passes through the casing rack and is connected to the driving wheel 310.

[0064] In particular, a groove can be provided on the upper surface of the casing rack, the bottom of the groove being the arc-shaped support surface, and the length of the groove being greater than the length of each roller 200, so that the roller 200 is placed in the groove to prevent the roller 200 from falling from the upper surface of the casing rack during the rotation of the casing A1.

[0065] To facilitate storage of the casing rack, a handle 110 is provided on the side of the casing rack. The handle 110 can be elongated or curved, or other shapes suitable for gripping, with dimensions and contours that are adapted to the human hand. Its surface can be provided with a non-slip texture or coating to enhance friction between the hand and the handle 110, preventing slipping during use. The handle body can be made of plastic, rubber, metal, or a composite material, possessing a certain strength and toughness to withstand external forces such as gripping force and torque applied by the user during operation, ensuring that the handle maintains structural integrity and stability even after long-term use.

[0066] In a specific embodiment, flange seat 610 is evenly distributed with a plurality of positioning holes for connection to a dedicated lifting fixture for casing A1. Flange seat 610 is secured to the dedicated lifting fixture for casing A1 through these evenly distributed positioning holes, transmitting power while driving casing A1 to rotate. The dedicated lifting fixture can be casing flanges A2 installed at both ends of casing A1.

[0067] During installation, the plurality of round rollers 200 are arranged along the curve of the arc-shaped supporting surface of the casing shelf. When the casing A1 is placed on the casing shelf, the casing flange A2 of the casing A1 can contact with the round rollers.

[0068] In order to achieve quick assembly and disassembly of the driving wheel 310 and the driven wheel 320 , a keyway is provided on one of the driving shaft 520 and the driving wheel 310 , and the driving shaft 520 and the driving wheel 310 are connected by a connecting key.

[0069] A key slot is provided on one of the fixed shaft 440 and the adjusting roller 420 , and the fixed shaft 440 and the adjusting roller 420 are connected by a connecting key 450 .

[0070] In addition, in order to achieve stability in force transmission of the sleeve A1 , both ends of the fixed shaft 440 are welded to the driven wheel 320 and the flange seat 610 respectively.

[0071] In this embodiment, the drive device is a drive motor 510, specifically a stepless speed-regulating motor with selected parameters: power of 2200W, speed range of 0-3000rpm, voltage of 220V, and current of 15A. Of course, other devices capable of providing rotational power may also be used. In addition to power drive, manual drive may also be used to drive the driving wheel 310 to rotate.

[0072] In addition, the present invention also includes a manual auxiliary sleeve rotating device and a second sleeve supporting device 800. The manual auxiliary sleeve rotating device includes a rotating handle 710, a second belt 720, a first rotating roller 730 and two second rotating rollers 740. Figure 5 and Figure 6 .

[0073] The upper surface of the second sleeve supporting device 800 is provided with an arc-shaped supporting surface, and a plurality of round rollers 200 are arranged side by side on the arc-shaped supporting surface. Figure 2 As shown, the first casing support device 100 and the second casing support device 800 respectively support both ends of the casing A1. The structures of the first casing support device 100 and the second casing support device 800 can be the same or different.

[0074] The first rotating roller 730 is rotatably arranged on the second sleeve supporting device 800, the rotating handle 710 is installed on the first rotating roller 730, the two second rotating rollers 740 are rotatably arranged on the upper surface of the second sleeve supporting device 800 and are respectively located on both sides of the multiple round rollers 200, the second belt 720 is sleeved on the first rotating roller 730 and the two second rotating rollers 740, and the multiple round rollers 200 are located on the second belt 720 to assist the sleeve A1 in rotating.

[0075] The operator manually turns the rotating handle 710 to drive the first rotating roller 730 to rotate. The first rotating roller 730 drives the two second rotating rollers 740 to rotate through the second belt 720. At the same time, the multiple round rollers 200 in contact with the second belt 720 are driven by the second belt 720 to rotate, thereby assisting the rotation of the sleeve A1.

[0076] The transformer bushing rotating tool provided by the present invention has the following beneficial effects:

[0077] 1. The circular roller 200 can support and rotate the sleeve A1;

[0078] 2. Through the tensioning device, it can adapt to different sizes and types of casing A1;

[0079] 3. The driving device is used to drive the sleeve A1 to rotate;

[0080] 4. Through the combination of "mechanical + electric power", the manpower can be reduced and the risk of manual lifting and flipping of the casing A1 can be reduced. At the same time, the casing A1 can be inspected, the inspection time before the installation of the casing A1 can be shortened, and the operation efficiency can be improved.

[0081] In the description of this application, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0082] As used in this application and the claims, unless the context clearly indicates an exception, the terms "a," "an," "an," and / or "the" are not intended to refer to the singular and may include the plural, unless the context clearly indicates otherwise. Generally speaking, the terms "comprises" and "include" only indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list. A method or apparatus may also include other steps or elements. The phrase "comprises a..." does not preclude the presence of additional identical elements in the process, method, product, or apparatus that includes the elements.

[0083] In the description of the embodiments of this application, unless otherwise specified, " / " represents or. For example, A / B can represent A or B. "And / or" in this article is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of this application, "plurality" means two or more than two.

[0084] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0085] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0086] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A transformer bushing rotating tool, characterized in that: It comprises a first sleeve supporting device (100), a plurality of round rollers (200), a transmission device, a driving device, a fixing device and a tensioning device, wherein the transmission device comprises a driving wheel (310), a driven wheel (320) and a first belt (330), and the fixing device comprises a flange seat and a rotating shaft (620); The upper surface of the first sleeve supporting device (100) is provided with an arc-shaped supporting surface, and a plurality of the circular rollers (200) are arranged side by side on the arc-shaped supporting surface, and the circular rollers (200) are used to support the sleeve (A1); The driving wheel (310) is connected to the driving shaft (520) of the driving device, the driven wheel (320) is connected to the flange seat (610) via the rotating shaft (620), the flange seat (610) is used to be detachably connected to the central axis of the sleeve (A1), and the first belt (330) is respectively connected to the driving wheel (310) and the driven wheel (320); The tensioning device is used to ensure that the first belt (330) is always in a tensioned state during the transmission process.

2. The transformer bushing rotating tool according to claim 1, characterized in that: The tensioning device comprises an adjustment block (410), an adjustment roller (420), a mounting bearing (430) and a fixed shaft (440); The adjusting block (410) is arranged on the first sleeve supporting device (100), the adjusting roller (420) is arranged on one end of the fixed shaft (440) through the mounting bearing (430), the other end of the fixed shaft (440) is movably arranged on the adjusting block (410), and the position of the fixed shaft (440) on the adjusting block (410) is limited by a locking mechanism.

3. The transformer bushing rotating tool according to claim 2, characterized in that: The adjustment block (410) is provided with a strip-shaped groove, and the other end of the fixed shaft (440) is arranged in the strip-shaped groove. The other end of the fixed shaft (440) limits the position of the fixed shaft (440) on the strip-shaped groove through a locking mechanism.

4. The transformer bushing rotating tool according to claim 2, characterized in that: The adjusting block (410) is provided with a plurality of mounting holes spaced apart along the radial direction of the sleeve (A1); the other end of the fixed shaft (440) is inserted into the corresponding mounting hole of the adjusting block (410); and the other end of the fixed shaft (440) is restricted in the mounting hole by a locking mechanism.

5. The transformer bushing rotating tool according to claim 2, characterized in that: One of the drive shaft (520) and the driving wheel (310) is provided with a keyway, and the drive shaft (520) and the driving wheel (310) are connected via a connecting key; And / or, one of the fixed shaft (440) and the adjusting roller (420) is provided with a keyway, and the fixed shaft (440) and the adjusting roller (420) are connected via a connecting key (450).

6. The transformer bushing rotating tool according to claim 2, characterized in that: Both ends of the fixed shaft (440) are respectively welded to the driven wheel (320) and the flange seat (610).

7. The transformer bushing rotating tool according to claim 1, characterized in that: The first casing support device (100) comprises a casing rack, the upper surface of which is provided with an arc-shaped support surface, the driving device is installed inside the casing rack, and the driving shaft (520) of the driving device passes through the casing rack and is connected to the driving wheel (310).

8. The transformer bushing rotating tool according to claim 7, characterized in that: A hand-held portion (110) is provided on the side of the casing shelf.

9. The transformer bushing rotating tool according to claim 1, characterized in that: A plurality of positioning holes are evenly arranged on the flange seat (610), and the positioning holes are used to connect with a special lifting tool of the casing (A1).

10. The transformer bushing rotating tool according to any one of claims 1 to 9, characterized in that: It also includes a manual auxiliary sleeve rotating device and a second sleeve supporting device (800), the manual auxiliary sleeve rotating device includes a rotating handle (710), a second belt (720), a first rotating roller (730) and two second rotating rollers (740), the upper surface of the second sleeve supporting device (800) is provided with an arc-shaped supporting surface, and a plurality of the round rollers (200) are arranged side by side on the arc-shaped supporting surface, and the first sleeve supporting device (100) and the second sleeve supporting device (800) are respectively used to support the two ends of the sleeve (A1); The first rotating roller (730) is rotatably arranged on the second sleeve supporting device (800), the rotating handle (710) is installed on the first rotating roller (730), the two second rotating rollers (740) are rotatably arranged on the upper surface of the second sleeve supporting device (800) and are respectively located on both sides of the plurality of round rollers (200), the second belt (720) is sleeved on the first rotating roller (730) and the two second rotating rollers (740), and the plurality of round rollers (200) are located on the second belt (720) to assist the sleeve (A1) in rotating.

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