CN212222140U - Special tool for turning over main shaft of hydroelectric generating set - Google Patents
Special tool for turning over main shaft of hydroelectric generating set Download PDFInfo
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- CN212222140U CN212222140U CN202020627069.8U CN202020627069U CN212222140U CN 212222140 U CN212222140 U CN 212222140U CN 202020627069 U CN202020627069 U CN 202020627069U CN 212222140 U CN212222140 U CN 212222140U
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- screw rod
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Abstract
The utility model provides a hydroelectric set main shaft stands up special frock, includes the frock body, the frock body on be equipped with mounting hole and hole for hoist, be equipped with rather than complex screw rod in the mounting hole, be equipped with rather than complex nut on the screw rod. By adopting the structure, the special tool is utilized to separate the steel wire rope from the lower flange surface of the main shaft, the damage of the steel wire rope to the lower flange surface of the main shaft is avoided, the hidden danger that the original tool screw rod moves along the axis direction of the bolt hole in the main shaft turnover process is eliminated, the safety of the main shaft turnover and hanging-out process is effectively improved, the special tool is simple in structure and convenient to install, and the working efficiency is improved.
Description
Technical Field
The utility model relates to a hydroelectric set auxiliary assembly field, especially a hydroelectric set main shaft stands up special frock.
Background
When a large-scale power station hydroelectric generating set is overhauled in a class A mode, a main shaft needs to be lifted out, the length of the main shaft of the hydroelectric generating set is usually larger than 8m, the weight of the main shaft is usually more than 100T, the main shaft needs to be horizontally placed after being vertically lifted out, and the main shaft needs to be turned over in the lifting-out process. At present, a double-head screw and a matched nut are combined for turning over a main shaft, a bridge crane is used for turning over the main shaft through double hooks, one hook is used for hoisting the main shaft, the other hook is hung on the screw through a steel wire rope, and the double hooks are matched for hoisting the main shaft out in a turning over mode. The method has two defects, namely, a rubber pad is arranged between the steel wire rope and the lower flange surface of the main shaft, a fixing device is not arranged, and the rubber pad has the possibility of sliding off, so that the steel wire rope and the lower flange surface of the main shaft generate friction, and the flange surface is damaged; and secondly, the lower screw fastening nut needs to leave a certain gap with the lower flange surface of the main shaft to hang the steel wire rope, and the lower screw fastening nut is not completely screwed to be tightly attached to the lower flange surface of the main shaft, so that the lower screw fastening nut can move along the axis after the lifting process, and great hidden danger is caused.
Disclosure of Invention
The utility model aims to solve the technical problem that a hydroelectric set main shaft stands up special frock is provided, utilizes this special frock to make wire rope and main shaft flange face separation down, has avoided wire rope to cause the damage to main shaft flange face down, eliminates the main shaft and stands up the original frock screw rod of process and removes the hidden danger along bolt hole axis direction, effectively improves the main shaft and stands up the safety of hanging out the process, this special frock simple structure, simple to operate improves work efficiency.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides a hydroelectric set main shaft stands up special frock, includes the frock body, the frock body on be equipped with mounting hole and hole for hoist, be equipped with rather than complex screw rod in the mounting hole, be equipped with rather than complex nut on the screw rod.
In an optimized scheme, the mounting hole is vertically arranged at one end of the tool body, the hoisting hole is horizontally arranged at the other end of the tool body, and the mounting hole and the hoisting hole are mutually perpendicular and are not communicated.
In the preferred scheme, a cushion sleeve is arranged in the hoisting hole.
In the preferred scheme, the screw rod is a double-end screw rod, and a plurality of gaskets are arranged on the screw rod.
The utility model provides a special frock is stood up to hydroelectric set main shaft through adopting above-mentioned structure, has following beneficial effect:
(1) the special tool is utilized to separate the steel wire rope from the lower flange surface of the main shaft, so that the steel wire rope is prevented from damaging the lower flange surface of the main shaft;
(2) the special tool can eliminate the hidden trouble that the original tool screw moves along the axis direction of the bolt hole in the process of turning over the main shaft, and effectively improves the safety of the process of turning over and hoisting out the main shaft;
(3) the special tool is simple in structure, convenient to install and capable of improving the working efficiency.
Drawings
The invention will be further explained with reference to the following figures and examples:
fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is the schematic structural diagram of the tool body of the present invention.
Fig. 3 is a schematic view of the structure of the cushion cover of the present invention.
In the figure: the tool comprises a tool body 1, a screw rod 2, a nut 3, a gasket 4, a gasket sleeve 5, a mounting hole 6 and a hoisting hole 7.
Detailed Description
As shown in fig. 1-3, the special tool for turning over the main shaft of the hydroelectric generating set comprises a tool body 1, wherein a mounting hole 6 and a hoisting hole 7 are arranged on the tool body 1, a screw rod 2 matched with the mounting hole 6 is arranged in the mounting hole 6, and a nut 3 matched with the screw rod 2 is arranged on the screw rod 2.
In the preferred scheme, the mounting hole 6 is vertically arranged at one end of the tool body 1, the hoisting hole 7 is horizontally arranged at the other end of the tool body 1, and the mounting hole 6 and the hoisting hole 7 are mutually perpendicular and are not communicated. The hidden danger that the screw rod moves along the axial direction in the hoisting process is avoided, and meanwhile, the abrasion to the square flange surface below the main shaft is avoided.
In the preferred scheme, a cushion sleeve 5 is arranged in the hoisting hole 7. Protection and skid resistance.
In a preferred scheme, the screw 2 is a double-end screw, and a plurality of gaskets 4 are arranged on the screw 2. The abrasion of the contact surface of the main shaft is avoided, and the connection stability is enhanced.
The utility model discloses a use method does: when the tool is used, the tool body 1 is connected with a flange at the bottom of a main shaft through the screw 2 through the mounting hole 6, then the gaskets 4 are placed at the positions where the tool body 1, the screw cap 3 and the flange at the bottom of the main shaft are contacted in pairs and are screwed up through the screw cap 3, the connection of the tool body 1 and the flange at the bottom of the main shaft is completed, and then a hoisting steel wire rope passes through the hoisting hole 7 and is fixed;
according to the difference of the main shafts, the number and the installation positions of the tool bodies 1 are selected to facilitate the subsequent lifting and turning-over operation of the main shafts.
The utility model has the advantages that: the special tool is utilized to separate the steel wire rope from the lower flange surface of the main shaft, the steel wire rope is prevented from damaging the lower flange surface of the main shaft, the hidden danger that the original tool screw rod moves along the axis direction of the bolt hole in the main shaft turning process is eliminated, the safety of the main shaft turning process is effectively improved, and the special tool is simple in structure, convenient to install and capable of improving the working efficiency.
Claims (4)
1. The utility model provides a hydroelectric set main shaft stands up special frock, includes frock body (1), its characterized in that: the tool body (1) is provided with a mounting hole (6) and a hoisting hole (7), the mounting hole (6) is internally provided with a screw rod (2) matched with the mounting hole, and the screw rod (2) is provided with a nut (3) matched with the screw rod.
2. The special tool for turning over the main shaft of the hydroelectric generating set according to claim 1, which is characterized in that: the tool is characterized in that the mounting hole (6) is vertically arranged at one end of the tool body (1), the hoisting hole (7) is horizontally arranged at the other end of the tool body (1), and the mounting hole (6) and the hoisting hole (7) are perpendicular to each other and are not communicated with each other.
3. The special tool for turning over the main shaft of the hydroelectric generating set according to claim 1, which is characterized in that: a cushion layer sleeve (5) is arranged in the hoisting hole (7).
4. The special tool for turning over the main shaft of the hydroelectric generating set according to claim 1, which is characterized in that: the screw rod (2) is a double-end screw rod, and a plurality of gaskets (4) are arranged on the screw rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020627069.8U CN212222140U (en) | 2020-04-23 | 2020-04-23 | Special tool for turning over main shaft of hydroelectric generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020627069.8U CN212222140U (en) | 2020-04-23 | 2020-04-23 | Special tool for turning over main shaft of hydroelectric generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212222140U true CN212222140U (en) | 2020-12-25 |
Family
ID=73908144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020627069.8U Active CN212222140U (en) | 2020-04-23 | 2020-04-23 | Special tool for turning over main shaft of hydroelectric generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212222140U (en) |
-
2020
- 2020-04-23 CN CN202020627069.8U patent/CN212222140U/en active Active
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