CN223646167U - Tool for replacing main transformer cooler - Google Patents

Abstract

This utility model discloses a tooling for replacing a main transformer cooler, relating to the field of substation equipment replacement tooling technology. Its structure includes a gantry frame, comprising a crossbeam and legs fixedly connected to both ends of the crossbeam. The legs are connected to a track slide on a rail. Two pulley carts are mounted on the crossbeam, each suspending a hand-operated hoist. A first clamp is attached to the lower hook of one hand-operated hoist, and a second clamp is attached to the lower hook of the other hand-operated hoist. This utility model significantly reduces the height requirement of the gantry frame by installing the first and second clamps at the upper and lower ends of the cooler respectively, and using two hand-operated hoists for lifting. This design allows for convenient operation even in generator rooms with limited height. By using two hand-operated hoists suspended on the pulley carts and in conjunction with the use of a side-pull assembly, this solution allows for flexible adjustment of the cooler's position and angle.

Description

Tool for replacing main transformer cooler

Technical Field

The utility model belongs to the technical field of transformer substation equipment replacement tools, and particularly relates to a replacement tool for a main transformer cooler.

Background

Because the indoor equipment of the main transformer is installed, the indoor environment of the main transformer is complex, partial equipment in the hoisting area is blocked, the side close to the main transformer is the cobble ground, and the conventional hoisting support cannot enter the equipment area for operation. At present, the main transformer cooler needs to be replaced by smashing the wall surface of the main transformer room to a sufficient width, and the hanging belt is lifted by using the overhead working truck to penetrate through the hanging point at the top of the main transformer room, so that the main transformer cooler is easy to collide with adjacent equipment, the equipment is damaged, and the operation difficulty is high. The existing cooler replacement tool generally comprises a portal frame, a chain block and other components, and lifting and moving of the cooler are achieved through cooperation of the portal frame and the chain block. However, these conventional tools suffer from some significant drawbacks during use. The existing main transformer cooler replacing tool often needs a higher portal frame to adapt to the height of the cooler, but the main transformer cooler replacing tool is particularly difficult in a power generation room with limited space, so that the cooler cannot be effectively replaced. The main transformer cooler replacing tool is simple in structure, convenient to operate and small in occupied space, so that working efficiency and safety are improved, and the requirement of modern power system maintenance is met. Therefore, the development of a novel main transformer cooler replacement tool is particularly important,

Disclosure of utility model

The utility model aims to provide a tool for replacing a main transformer cooler, which solves the problems that a first clamp and a second clamp are respectively arranged at the upper end and the lower end of the cooler, and two chain blocks are utilized for lifting, so that the requirement on the height of a gantry frame is obviously reduced.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

The utility model discloses a tool for replacing a main transformer cooler, which comprises a portal frame, wherein the portal frame comprises a cross beam and supporting legs fixedly connected to two ends of the cross beam, the supporting legs are connected to rail sliding plates on rails, two pulley carts are assembled on the cross beam, two chain blocks are respectively hung on the two pulley carts, a first clamp is hung on a lower hook of one chain block, a second clamp is hung on a lower hook of the other chain block, the first clamp is installed on the outer wall of the upper end of the cooler in a clamping mode, and the second clamp is installed on the outer wall of the lower end of the cooler in a clamping mode.

As a preferable technical scheme of the utility model, the portal frame and the two trolley are provided with two side pull assemblies.

As an optimized technical scheme, the side pulling assembly comprises an iron chain, reversing wheels and iron hooks fixed on the side surfaces of the supporting legs, wherein the two reversing wheels are respectively arranged on the top surfaces of two end parts of the cross beam, one end of the iron chain is fixed on the top surface of the trolley, and the iron chain is hung on the iron hooks on the same side after bypassing the reversing wheels on the same side.

According to the optimal technical scheme, the first clamp comprises a first hoop arranged on the outer wall of the upper end of the cooler, a portal frame is fixed on two wing plates on the same hoop plate of the first hoop, and a first hanging ring is fixed in the middle of the top surface of the portal frame.

As an optimal technical scheme, the second clamp comprises a second hoop arranged on the outer wall of the lower end of the cooler, and two second hanging rings are axially symmetrically fixed on the outer walls of two hoop plates of the second hoop.

As a preferable technical scheme of the utility model, rubber pads are arranged between the first anchor ear and the cooler and between the second anchor ear and the cooler.

The utility model has the following beneficial effects:

According to the utility model, the first clamp and the second clamp are respectively arranged at the upper end and the lower end of the cooler, and the two chain blocks are utilized for lifting, so that the requirement on the height of the gantry is obviously reduced. This design allows for easy operation also in highly confined power generation chambers.

According to the utility model, the two chain blocks are respectively hung on the trolley, and the position and the angle of the cooler can be flexibly adjusted by combining the use of the side pull assembly. The cooler assembly and disassembly device not only improves the convenience of operation, but also ensures that the cooler assembly and disassembly work can be smoothly completed under different space conditions.

The operation steps of the utility model are relatively simple and clear, the clamp is firstly installed, then lifted, and finally the cooler is horizontally moved out. The whole process can be completed by a small number of people without complex equipment or tools, and the operation difficulty and the labor cost are reduced.

Of course, it is not necessary for any one product to practice the utility model to achieve all of the advantages set forth above at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a structural schematic diagram of a portal frame installation state of a main transformer cooler replacement tool.

Fig. 2 is a schematic structural view of a cooler with a first clamp installed by vertically lifting a single chain block of the main transformer cooler replacement tool.

Fig. 3 is a schematic structural diagram of a cooler with a first clamp and a second clamp mounted by transversely lifting two chain blocks of a main transformer cooler replacement tool.

Fig. 4 is a schematic structural view of the first jig, the second jig, and the cooler.

In the drawings, the list of components represented by the various numbers is as follows:

1-cross beam, 2-supporting leg, 3-track, 4-track slide plate, 5-pulley vehicle, 6-chain block, 7-first clamp, 8-second clamp, 9-cooler, 10-side pull assembly, the device comprises a 101-iron chain, a 102-reversing wheel, a 103-iron hook, a 71-first anchor ear, a 72-portal, a 73-first hanging ring, a 81-second anchor ear and a 82-second hanging ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

First embodiment:

Referring to fig. 1-4, the utility model discloses a tool for replacing a main transformer cooler, which comprises a portal frame, wherein the portal frame comprises a beam 1 and supporting legs 2 fixedly connected to two ends of the beam 1, the supporting legs 2 are connected to rail sliding plates 4 on rails 3, two pulley carriages 5 are assembled on the beam 1, and a chain block 6 is respectively hung on the two pulley carriages 5. A first clamp 7 is hung on the hook below one of the chain blocks 6. A second clamp 8 is hung on the hook below the other chain block 6. The first clamp 7 is installed to clamp the outer wall of the upper end portion of the cooler 9. The second clamp 8 clamps the outer wall of the lower end of the cooler 9.

Wherein the first clamp 7 comprises a first anchor ear 71 mounted on the outer wall of the upper end of the cooler 9, as shown in fig. 4. A portal 72 is fixed on the first hoop 71 and two wing plates on the same hoop plate. A first hanging ring 73 is fixed in the middle of the top surface of the portal 72. The second clamp 8 comprises a second anchor ear 81 mounted on the outer wall of the lower end of the cooler 9. Two second hanging rings 82 are axisymmetrically fixed on the outer walls of the two hoop plates of the second hoop 81.

The process of disassembling the main transformer cooler 9 is as shown in fig. 1-3, firstly, paving the track 3 on the cobble ground, then, installing the first clamp 7 on the outer wall of the upper end part of the cooler 9, moving the portal frame to the upper part of the cooler 9, vertically lifting the cooler 9 on the first lifting ring 73 by using the hook of the first chain block 6, then installing the second clamp 8 on the outer wall of the lower end part of the cooler 9, pulling up the lower end of the cooler 9 on the second lifting ring 82 by using the hook of the other chain block 6, and lifting the cooler 9 horizontally upwards by using the two chain blocks 6. The cooler 9 can be moved out horizontally, so that the requirement on the height of the gantry is reduced, and the operation in a power generation chamber with limited height is facilitated. The disassembled main transformer cooler 9 is dropped to the ground, and the process of replacing the new cooler 9 is not repeated.

Rubber pads are arranged between the first anchor ear 71 and the cooler 9 and between the second anchor ear 81 and the cooler 9. Damage to the cooler 9 by the clamp is avoided. These designs enhance the stability and safety of the overall system, reducing operational risks.

Wherein, two side pull assemblies 10 are arranged on the portal frame and the two pulley carts 5. The side pull assembly 10 comprises an iron chain 101, a reversing wheel 102 and an iron hook 103 fixed on the side of the support leg 2. Two reversing wheels 102 are respectively arranged on the top surfaces of two end parts of the beam 1. One end of the iron chain 101 is fixed on the top surface of the trolley 5, and the iron chain 101 is hung on the iron hook 103 on the same side after bypassing the reversing wheel 102 on the same side.

The relative distance between the two pulley carts 5 on the cross beam 1 can be adjusted by the two side pull assemblies 10, the distance can be the distance between the hanging points of the first anchor ear 71 and the second clamp 8, the horizontal hanging of the cooler 9 is guaranteed, and secondly, the position of the two pulley carts 5 relative to one end of the cross beam 1 can be adjusted to avoid the too high part of the whole generator set.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims (6)

1. The utility model provides a be used for main cooler to change frock, includes the portal frame, the portal frame includes crossbeam (1) and fixed connection landing leg (2) at crossbeam (1) both ends, landing leg (2) are connected on track slide (4) on track (3), its characterized in that:

Two pulley carts (5) are assembled on the cross beam (1), and a chain block (6) is respectively hung on the two pulley carts (5);

A first clamp (7) is hung on the lower hook of one of the chain blocks (6);

A second clamp (8) is hung on the hook below the other chain block (6);

the first clamp (7) is installed on the outer wall of the upper end part of the cooler (9) in a clamping mode, and the second clamp (8) is installed on the outer wall of the lower end part of the cooler (9) in a clamping mode.

2. The tooling for replacing a main transformer cooler according to claim 1, wherein two side pull assemblies (10) are mounted on the portal frame and the two pulley carts (5).

3. The tool for replacing the main transformer cooler according to claim 2, wherein the side pulling assembly (10) comprises an iron chain (101), reversing wheels (102) and iron hooks (103) fixed on the side surfaces of the supporting legs (2), the two reversing wheels (102) are respectively arranged on the top surfaces of two end portions of the cross beam (1), one end of the iron chain (101) is fixed on the top surface of the pulley car (5), and the iron chain (101) is hung on the iron hooks (103) on the same side after bypassing the reversing wheels (102) on the same side.

4. The tool for replacing the main transformer cooler according to claim 1, wherein the first clamp (7) comprises a first hoop (71) arranged on the outer wall of the upper end of the cooler (9), a portal frame (72) is fixed on two wing plates on the same hoop plate of the first hoop (71), and a first hanging ring (73) is fixed in the middle of the top surface of the portal frame (72).

5. The tool for replacing the main transformer cooler according to claim 4, wherein the second clamp (8) comprises a second hoop (81) arranged on the outer wall of the lower end of the cooler (9), and two second hanging rings (82) are axially symmetrically fixed on the outer walls of two hoop plates of the second hoop (81).

6. The tooling for replacing a main transformer cooler according to claim 5, wherein rubber pads are arranged between the first anchor ear (71) and the cooler (9) and between the second anchor ear (81) and the cooler (9).