CN207155670U - A kind of frock suitable for big-and-middle-sized transformer radiator maintenance of fan - Google Patents

Abstract

The utility model discloses a kind of frock suitable for big-and-middle-sized transformer radiator maintenance of fan, including fastener, telescoping mechanism, trimming assembly, armful folder；Telescoping mechanism is connected with fastener；Trimming assembly includes threaded rod, adapter sleeve, installed part, the output end connection of threaded rod and telescoping mechanism；Adapter sleeve is arranged on threaded rod, and the inner circumferential surface of adapter sleeve is provided with the internal thread being engaged with threaded rod；Installed part is rotatablely connected with adapter sleeve；Folder is embraced to be connected with installed part.

Description

A tool suitable for overhauling and repairing radiator fans of large and medium-sized transformers

technical field

The utility model relates to the technical field of inspection and maintenance of fan radiators for transformers, in particular to a tool suitable for inspection and repair of fan radiators for large and medium-sized transformers.

Background technique

At present, the chip radiators of large and medium-sized transformers must be equipped with multiple sets of fans to cool down. The fans are usually installed at the bottom of the radiator. The transformer adjusts the number of fans to start according to the oil temperature. Once the air cooling system fails, the oil temperature of the transformer will rise rapidly. , affect the safety of transformer operation, and even lead to the failure of the main transformer and the complete shutdown of the substation in severe cases. Since the fan is in the running state for a long time, it is prone to failure. Timely maintenance of the faulty fan plays an important role in the safe and stable operation of the power system.

In the past, when replacing this type of radiator fan, people often relied on people to carry it on their shoulders. Because there is an accidental oil pool under the radiator, a large number of pebbles have accumulated, and ordinary forklifts, tooling, etc. cannot be moved to the bottom of the fan. Due to the heavy weight of the fan (ranging from 80kg to 200kg), multiple people are required to cooperate during manual assembly and disassembly. Due to the impact of adjacent live intervals, the site construction safety risk is greater, and the control cost is higher; because the length of maintenance time has a great impact on the reliability and economic indicators of the power system, it is hoped that the maintenance time can be shortened as much as possible when replacing the fan.

At present, there is no safe and convenient tooling in the power system for the maintenance of the above-mentioned large and medium-sized transformer radiator fans. Therefore the applicant provides a kind of tool suitable for overhauling fan of radiator fan of large and medium-sized transformer, to solve the above-mentioned problem.

Utility model content

In order to solve the technical problems existing in the background technology, the utility model proposes a tool suitable for the maintenance of large and medium-sized transformer radiator fans, with good effect.

A tool suitable for overhauling radiator fans of large and medium-sized transformers, including fasteners, telescopic mechanisms, fine-tuning components, and holding clips;

The telescopic mechanism is connected with the fastener;

The fine-tuning assembly includes a threaded rod, a connecting sleeve, and a mounting piece. The threaded rod is connected to the output end of the telescopic mechanism; the connecting sleeve is installed on the threaded rod, and the inner peripheral surface of the connecting sleeve is provided with an internal thread matching the threaded rod; Rotate connection with connecting sleeve;

The holding clip is connected with the mounting part.

Preferably, a liner is also included, the liner is ring-shaped, the liner is located inside the holding clip, the liner is connected with the holding clip, and the outer diameter of the liner matches the inner diameter of the holding clip.

Preferably, the inner diameter of the liner decreases gradually from top to bottom.

Preferably, the liner includes a plurality of support blocks, the support blocks are arc-shaped, and the plurality of support blocks are sequentially distributed along the circumferential direction.

Preferably, the holding clip is provided with a first clamping piece; the support block is provided with a first clamping piece matched with the first clamping piece.

Preferably, the mounting part is provided with a second clamping part; the holding clip is provided with a second clamping part matched with the second clamping part.

In the utility model, when adjusting or replacing the fan below the fin radiator, the overhaul tooling can be flexibly assembled under the radiator, and the clamp of the tooling can be adjusted to the same horizontal position as the fan through the telescopic mechanism. With a suitable liner, after the fan is firmly clamped, the maintenance personnel can quickly and safely disassemble the faulty fan. After the disassembly is completed, the fan can be stably and vertically lowered to the ground through the telescopic mechanism. When installing a new fan, follow the above reverse process That is, during the whole inspection and maintenance process, the fine-tuning assembly can play a role of flexible adjustment, which is convenient for small-scale adjustment of the position of the fan, and makes it easy to carry out work such as bolt removal and installation. The use of the whole tooling involves a small working range, which avoids people carrying it on their shoulders, greatly reduces the labor intensity of personnel, and avoids the use of large equipment. The working range of maintenance personnel does not touch live parts, which is safe and reliable.

The utility model also has the following beneficial effects:

(1) Use the telescopic mechanism to move the fan vertically: the device can be conveniently installed at the bottom of the radiator, and the fan can be moved up and down through the telescopic mechanism, which greatly reduces the labor intensity of personnel.

(2) The fine-tuning component is designed: when disassembling and assembling the fan bolts, there is a slight position shift, which is not conducive to the disassembly and assembly work. The fine-tuning component is designed on this tooling, which can manually fine-tune the position of the clamp in a small range. When installing and removing bolts, personnel can fine-tune the position of the fan at will, which is convenient and practical.

(3) Good portability: the device can be disassembled into multiple assemblies, all of which can be installed and carried by a single person, easy to carry, easy to assemble and disassemble, regardless of the handling of the fan on the ground, it can be completed by one person on site Install.

(4) Good safety: due to the small operating range of the device, the use of manpower, electric shock, mechanical injury and other dangers are avoided during the movement of the fan.

(5) Wide range of use and unrestricted use conditions: the device can be used to overhaul various large and medium-sized transformer radiator fans, with small working space and unlimited use conditions. The device body is made of metal or high-strength engineering materials After each component is assembled in place, the fan can be fixed. The clamp contacts the fan through an adjustable pad that matches with different fans, which prevents the fan from being squeezed and damaged by metal parts, and ensures that the fan clamp can be firmly secured. Clamp the fan.

(6) Simple operation and wide application range: the device is easy to use and can be used in various occasions in substations. It is easy to maintain and can be operated by one person.

The tooling can overhaul the radiator fan in a narrow range, and can easily dismantle and install the fan. The device can be assembled flexibly at the substation site, provides auxiliary lifting function, reduces labor intensity, and has a small operating range. , Easy to carry, safe and reliable, low operating cost.

Description of drawings

Fig. 1 is the explosion diagram of the utility model;

Fig. 2 is the structural representation of fine-tuning assembly;

Fig. 3 is the structural representation when the utility model is used;

Fig. 4 is a schematic structural view of the utility model when in use.

Detailed ways

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other; the utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

Referring to Figure 1-4:

The utility model proposes a tool suitable for overhauling fan A of large and medium-sized transformer radiators. It is used for overhauling fan A, and includes fastener 1, telescopic mechanism 2, fine-tuning assembly, and holding clip 3.

The telescopic mechanism 2 is connected with the fastener 1; the fine-tuning assembly includes a threaded rod 4, a connecting sleeve 5, and a mounting piece 6, and the threaded rod 4 is connected with the output end of the telescopic mechanism 2; the connecting sleeve 5 is installed on the threaded rod 4, and the connecting sleeve 5 The inner peripheral surface of the inner surface is provided with an internal thread matched with the threaded rod 4; the mounting part 6 is rotationally connected with the connecting sleeve 5;

This embodiment also includes a liner 7 , which is ring-shaped. The liner 7 is located inside the holding clip 3 . The liner 7 is connected to the holding clip 3 . The outer diameter of the liner 7 matches the inner diameter of the holding clip 3 . The liner 7 can be made of elastic material such as rubber, and the clamp 3 contacts the fan A through the liner 7 to avoid damage to the surface of the fan; it can also ensure that the clamp 3 clamps the fan.

In this embodiment, the inner diameter of the liner 7 decreases gradually from top to bottom; it is convenient to cooperate with the fans, and can also be adapted to clamp fans A of different sizes.

In this embodiment, the liner 7 includes a plurality of support blocks 701, the support blocks 701 are arc-shaped, and the plurality of support blocks 701 are distributed sequentially along the circumferential direction; the liner 7 is composed of a plurality of support blocks 701, and two adjacent support blocks There is a gap between 701, which facilitates the deformation of the supporting block 701, and is convenient for clamping and fixing the fan. It is more convenient and fast to move, install and disassemble the supporting block 701, and improve the efficiency of replacing the fan.

In this embodiment, the holding clip 3 is provided with a first clamping part; the support block 701 is provided with a first clamping part matched with the first clamping part. It is convenient to disassemble and install the support block 701 and the holding clip 3 , to replace the support block 701 of different sizes, and to clamp fans of different sizes.

In this embodiment, the mounting part 6 is provided with a second clipping part; the holding clip 3 is provided with a second clipping part matched with the second clipping part. It is convenient to disassemble and replace the holding clip 3, and it is convenient to hold fans of different sizes. Disassemble into small parts for easy transportation.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (6)

1. A kind of 1. frock suitable for big-and-middle-sized transformer radiator maintenance of fan, it is characterised in that：

   Including fastener, telescoping mechanism, trimming assembly, armful folder；

   Telescoping mechanism is connected with fastener；

   Trimming assembly includes threaded rod, adapter sleeve, installed part, the output end connection of threaded rod and telescoping mechanism；Adapter sleeve is installed On threaded rod, the inner circumferential surface of adapter sleeve is provided with the internal thread being engaged with threaded rod；Installed part rotates with adapter sleeve to be connected Connect；

   Folder is embraced to be connected with installed part.
2. 2. the frock according to claim 1 suitable for big-and-middle-sized transformer radiator maintenance of fan, it is characterised in that：Also Including pad, pad and press from both sides connection with embracing positioned at an armful inner side for folder, pad for annular, pad, the external diameter of pad and the internal diameter for embracing folder It is engaged.
3. 3. the frock according to claim 2 suitable for big-and-middle-sized transformer radiator maintenance of fan, it is characterised in that：Lining The internal diameter of pad is gradually reduced from top to down.
4. 4. the frock according to claim 2 suitable for big-and-middle-sized transformer radiator maintenance of fan, it is characterised in that：Lining Pad includes multiple support blocks, and support block is arc, and multiple support blocks are circumferentially sequentially distributed.
5. 5. the frock according to claim 4 suitable for big-and-middle-sized transformer radiator maintenance of fan, it is characterised in that：Embrace Folder is provided with the first shackle member；Support block is provided with the first fastener being engaged with the first shackle member.
6. 6. the frock according to claim 1 suitable for big-and-middle-sized transformer radiator maintenance of fan, it is characterised in that：Peace Piece installing is provided with the second shackle member；Embrace folder and be provided with the second fastener being engaged with the second shackle member.