CN215240556U - Special tool for disassembling and assembling lower tile seat of sealing tile - Google Patents

Abstract

The utility model discloses a special tool for disassembling and assembling a lower tile seat of a sealing tile, which comprises an arc-shaped frame, wherein the arc-shaped frame comprises an arc-shaped block at the middle part and connecting plates fixedly connected at the two ends of the arc-shaped block, the inner side of the arc-shaped block is arc-shaped, more than one core shaft fixedly connected on the arc-shaped block is arranged at the two sides of the central line of the arc-shaped block, each core shaft is provided with a roller, all the rollers are arranged according to the arc shape, and the radial inner ends of the rollers are positioned at the inner side of the arc-shaped block; every connecting plate all is equipped with more than one through-hole, and every through-hole all is furnished with fastening bolt. The utility model has the advantages of easy and simple to handle, dismouting are efficient to can avoid the damage of generator axle journal, lower tile seat and sealed pad, and improve the security.

Description

Special tool for disassembling and assembling lower tile seat of sealing tile

Technical Field

The utility model relates to a special frock of seat of a tile dismouting under sealed tile, especially a special frock of seat of a tile dismouting under sealed tile that is used for hydrogen-cooled generator.

Background

The hydrogen-cooled generator sealing bush seat is shown in figure 1 and comprises a sealing bush upper bush seat 7 and a sealing bush lower bush seat 8 which are connected in a horizontal split plane by a positioning pin and a bolt; the upper tile seat 7 and the lower tile seat 8 of the sealing tile are fixed on the large end cover 10 of the hydrogen-cooled generator through bolts, a sealing gasket is arranged between the vertical surfaces of the two tile seats and the large end cover 10 of the generator, and sealing is achieved through the connection of positioning pins and the bolts.

The dismantlement method of current sealed tile seat utilizes the flange bolt hole of sealed tile seat itself as the hoisting point, and the tile seat on the sealed tile is dismantled to first step: after the fixing bolt of the upper sealing tile seat 7 of the sealing tile is disassembled, hoisting the upper sealing tile seat 7, firstly, dropping the upper sealing tile seat 7 onto the shaft neck 9 of the generator, pulling out the shaft neck 9 along the axial direction by manual left and right support, replacing a hoisting point, hoisting the upper sealing tile seat 7 again, and hoisting out the generator;

and secondly, disassembling a lower tile seat of the sealing tile: because the upper tile seat 7 of the sealing tile is already removed at this moment, the lower tile seat 8 of the sealing tile is fixed on the lower half part of the large end cover 10 of the generator by the bolt of the lower tile seat, if the bolt of the lower tile seat is removed at this moment, the lower tile seat 8 can fall down and damage equipment because of no support, therefore, a sling is generally adopted to hang on the large end cover 10 of the generator, and the bolt is removed after the lower tile seat 8 is fixed;

thirdly, hoisting the tile seat: after the bolts of the lower tile seat are completely disassembled, one side of the lower tile seat 8 of the sealing tile is lifted by using the sling on the end cover of the generator, the other side is lowered, the lower tile seat is rotated by 180 degrees along the journal 9 of the generator and turned to the upper part, and then the generator is lifted out by adopting the hoisting method of the upper tile seat.

The existing method for installing the sealing shoe seat is carried out according to the second step and the third step in the reverse order; however, when the seal shoe lower shoe 8 is inserted into the positioning pin and the bolt on the generator large end cover 10, the position of the seal shoe lower shoe needs to be repeatedly adjusted by a hanging rope for installation.

By using the common dismounting method, the dismounting work can be influenced due to the obstruction of the sling in the second step and the third step, and particularly when the sealed tile is lifted and lowered in the third step, the lower tile seat of the sealed tile is clamped and cannot rotate due to poor matching, the sealed tile is knocked manually by a dismounting person, the operation is inconvenient, the efficiency is low, the danger of extrusion can occur, and the shaft neck of the generator and the sealed tile seat can be damaged; when the lower tile seat of the sealing tile is installed, particularly when a positioning pin and a bolt are adjusted, accurate positioning is difficult, time and labor are wasted, and a sealing gasket on the side surface of the sealing tile seat is easy to damage, so that hydrogen leakage of a generator is caused; the sling is used for hoisting, the sling is damaged by hoisting through the bolt hole, and personnel extrude the risk of injury.

Disclosure of Invention

The utility model aims at the above-mentioned not enough that prior art exists, provide a special frock of bearing bush seat dismouting under sealed tile, it has easy and simple to handle, the efficient advantage of dismouting to can avoid the damage of generator journal, lower bearing bush seat and sealed pad, and improve the security.

In order to achieve the purpose, the utility model discloses a special frock of seat dismouting under sealed tile, including the arc frame, its characterized in that the arc frame includes the arc piece in middle part, links firmly the connecting plate at arc piece both ends, and the inboard of arc piece is convex, and arc piece central line both sides all are equipped with more than one dabber that links firmly on the arc piece, are equipped with the gyro wheel on every dabber, and all gyro wheels are arranged according to the arc and its radial inner all is located the inboard of arc piece; each connecting plate is provided with more than one through hole, and each through hole is provided with a fastening bolt;

when the sealing bush bearing seat is used, after the sealing bush upper bearing seat is disassembled, the two connecting plates and the sealing bush lower bearing seat are connected into a whole through the fastening bolt, the roller wheel is tightly contacted with the journal of the generator, the connecting bolt and the positioning pin of the sealing bush lower bearing seat are disassembled, the roller wheel is used for rotating the sealing bush lower bearing seat for 180 degrees to the upper part of the journal of the generator by taking the journal of the generator as a center, and the sealing bush lower bearing seat can be lifted out; during installation, reverse operation is only needed; by adopting the tool, the original sling fixing and position adjusting are cancelled in the dismounting process, the tile lower tile seat is directly sealed by the roller rotation, the operation is simple and convenient, the positioning is accurate, the dismounting efficiency can be improved, the jamming can be avoided by the rotation, the damage to the shaft neck of the generator, the tile lower tile seat and the sealing gasket can be prevented, and the safety of personnel is improved;

as a further improvement of the utility model, the arc-shaped block is provided with a groove in the middle part in the axial direction, the mandrel passes through the arc-shaped block, and the radial outer ends of all the rollers are arranged in the groove; the installation of the roller is convenient, and the integral strength is improved;

as a further improvement of the utility model, two mandrels fixedly connected with the arc-shaped block are arranged on two sides of the central line of the arc-shaped block, and the rollers on two sides of the central line of the arc-shaped block are symmetrically arranged; the tightness and the stability of the contact between the tool and the generator shaft can be improved;

to sum up, the utility model has the advantages of easy and simple to handle, dismouting are efficient to can avoid the damage of generator journal, lower tile seat and sealed pad, and improve the security.

Drawings

Fig. 1 is a front view of a conventional generator sealing shoe in a mounted state.

Fig. 2 is a front view of the embodiment of the present invention.

Fig. 3 is a bottom view of fig. 2.

Fig. 4 is a front view of the embodiment of the present invention in the initial state of disassembly.

Fig. 5 is a front view of the state of the end of disassembly according to the embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 2 to 3, the special tool for dismounting and mounting a lower shoe seat of a sealing shoe of this embodiment includes an arc-shaped frame, the arc-shaped frame includes an arc-shaped block 1 at the middle part and connecting plates 2 integrally and fixedly connected to two ends of the arc-shaped block 1, the inner side of the arc-shaped block 1 is arc-shaped, the arc-shaped block 1 is provided with a groove 3 at the middle part in the axial direction thereof, two mandrels 4 penetrating through the arc-shaped block are respectively arranged at two sides of the center line of the arc-shaped block, each mandrel 4 is provided with a roller 5, all the rollers 5 are arranged according to an arc shape, the radial inner ends of the rollers are located at the inner side of the arc-shaped block 1, the radial outer ends of all the rollers 5 are located in the groove 3, and four rollers 5 at two sides of the center line of the arc-shaped block are symmetrically arranged; each connecting plate 2 is provided with two through holes, and each through hole is provided with a fastening bolt 6;

when in use, after the upper tile seat of the sealing tile is disassembled, as shown in fig. 4 and 5, the two connecting plates 2 and the lower tile seat 8 of the sealing tile are connected into a whole through the fastening bolt 6, the roller 5 is tightly contacted with the journal 9 of the generator, the connecting bolt and the positioning pin of the lower tile seat 8 of the sealing tile are disassembled, the lower tile seat of the sealing tile is rotated by 180 degrees to the upper part of the journal 9 of the generator by taking the journal 9 of the generator as the center through the roller 5, and the lower tile seat of the sealing tile can be lifted out; when the sealing tile lower tile seat 8 is installed, the reverse operation is performed;

by adopting the tool, the original sling fixing and position adjusting are cancelled in the dismounting process, the sealing tile lower tile seat 8 is directly rotated through the roller 5, the operation is simple and convenient, no swing is generated, only the sealing tile lower tile seat 8 is rotated, the positioning is accurate, the dismounting efficiency can be improved, the blocking is avoided, the damage to the shaft neck of the generator, the lower tile seat and the sealing gasket can be prevented, the extrusion injury of personnel is avoided, and the safety is improved; the mandrel 4 is supported by the arc-shaped block 1, and the radial outer ends of all the rollers 5 are arranged in the grooves 3, so that the rollers 5 are convenient to mount, and the overall strength is improved; the contact tightness and the contact stability of the tool and the shaft neck of the generator can be improved by a plurality of rollers 5 and symmetrical arrangement.

Claims (3)

1. A special tool for disassembling and assembling a lower tile seat of a sealing tile comprises an arc-shaped frame, and is characterized in that the arc-shaped frame comprises an arc-shaped block in the middle and connecting plates fixedly connected to two ends of the arc-shaped block, the inner side of the arc-shaped block is arc-shaped, more than one core shaft fixedly connected to the arc-shaped block is arranged on two sides of the central line of the arc-shaped block, each core shaft is provided with rollers, all the rollers are arranged in an arc shape, and the radial inner ends of the rollers are located on the inner side of the arc-shaped block; every connecting plate all is equipped with more than one through-hole, and every through-hole all is furnished with fastening bolt.

2. The special tool for disassembling and assembling the lower shoe seat of the sealing shoe as claimed in claim 1, wherein the arc block is provided with a groove at the middle part in the axial direction thereof, the mandrel penetrates through the arc block, and the radial outer ends of all the rollers are arranged in the groove.

3. The special tool for disassembling and assembling the lower shoe seat of the sealing shoe as claimed in claim 1 or 2, wherein two mandrels fixedly connected to the arc-shaped block are arranged on both sides of the center line of the arc-shaped block, and the rollers on both sides of the center line of the arc-shaped block are symmetrically arranged.

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