CN203726437U - Dismounting device used for large-diameter high temperature bolt of nuclear power station - Google Patents
Dismounting device used for large-diameter high temperature bolt of nuclear power station Download PDFInfo
- Publication number
- CN203726437U CN203726437U CN201420068113.0U CN201420068113U CN203726437U CN 203726437 U CN203726437 U CN 203726437U CN 201420068113 U CN201420068113 U CN 201420068113U CN 203726437 U CN203726437 U CN 203726437U
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- Prior art keywords
- roller
- cover plate
- high temperature
- nuclear power
- power station
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Abstract
The utility model relates to a dismounting device used for a large-diameter high temperature bolt of a nuclear power station. The dismounting device comprises an upper cover plate, a lower cover plate, a roller and a casing, wherein the upper and lower cover plates are installed on two sides of the casing respectively, two ends of the roller are installed in sliding chutes of the upper cover plate and the lower cover plate respectively, the middle portion of the roller slides in a groove of the casing, and the radial depth of the groove is gradually increased. Compared with dismounting devices in the prior art, the dismounting device has the advantages that spare parts can be protected, the maintenance is convenient, and the dismounting device is safe and reliable.
Description
Technical field
The utility model relates to a kind of extracting tool, especially relates to a kind of provision for disengagement for nuclear power station major diameter high temperature bolt.
Background technology
Bolt plays vital effect in the safe operation of power plant.In the impact based on factors such as long-term operation and on-the-spot hot environments, often there is the situation that bolt cannot be dismantled.Particularly visual plant, because operating condition, safety requirements are high, often adopts dark blind hole studding bolt of serration.These bolt general diameters are large, threaded engagement length is long, in unloading process, may produce destruction to the thread Pilot hole being positioned on apparatus body, in addition be subject to the restriction of the each side such as material, heat treatment, on-the-spot processing conditions, processing more complicated and the difficulty of thread Pilot hole, this,, by directly affecting the service work of power plant, causes heavy economic losses.Adopt at present by inquiry pipe vice to pull to add the original methods such as sledgehammer, hand hammer beat, even because tight power often causes pipe vice to skid, rupture and cause the bolt that unsafe conditions is pulled down also to bite more severe greatly.
Utility model content
The purpose of this utility model is exactly to provide a kind of provision for disengagement for nuclear power station major diameter high temperature bolt in order to overcome the defect that above-mentioned prior art exists.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of provision for disengagement for nuclear power station major diameter high temperature bolt, it is characterized in that, comprise upper cover plate, lower cover, roller and housing, described upper and lower cover plate is arranged on respectively housing both sides, described roller two ends are arranged on respectively in the sliding tray of upper cover plate and lower cover, and described roller mid portion slides in elongated groove gradually at the radial depth of housing.
There is circular hole at described upper and lower cover plate center, and circular hole outside is uniformly distributed and is useful on the curved channel sliding in roller end.
Described roller has 3, and there is convex body at each roller two ends, and is interspersed in respectively in 3 curved channels of upper and lower cover plate.
Groove in described housing is provided with 3, is slidably connected with each roller.
The radial depth of each groove is elongated gradually in the counterclockwise direction.
Compared with prior art, the utlity model has following advantage:
1) protection spare part: prevent that, in demounting bolt process, bolt surface is damaged;
2) maintenance is convenient: use this extracting tool, make its Bolt dismantling, install time saving and energy saving, more science and convenient;
3) safe and reliable: for large diameter bolt, because the required moment of dismounting is larger, easily the generation that injures staff or cause device damage accident because pipe wrench ruptures, is used this instrument bolt and Tool Room self-locking not to exist skidding safe and reliable.
Brief description of the drawings
Fig. 1 is the utility model decomposition texture schematic diagram;
Fig. 2 is the structural representation after the utility model assembling.
Wherein 1 is upper cover plate, and 2 is housing, and 3 is ball, and 4 is lower cover.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.The present embodiment is implemented as prerequisite taking technical solutions of the utility model, provided detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
Embodiment
As shown in Figure 1, a kind of provision for disengagement for nuclear power station major diameter high temperature bolt, comprise upper cover plate 1, lower cover 4, roller 3 and housing 2, described upper cover plate 1, lower cover 4 are arranged on respectively housing 2 both sides, described roller 3 two ends are arranged on respectively in the sliding tray of upper cover plate 1 and lower cover 4, and described roller 3 mid portions slide in elongated groove gradually at the radial depth of housing.
There is circular hole at described upper cover plate 1, lower cover 4 centers, and circular hole outside is uniformly distributed and is useful on the curved channel sliding in roller end.
Described roller 3 has 3, and there is convex body at each roller two ends, and is interspersed in respectively in 3 curved channels of upper cover plate 1, lower cover 4.Groove in described housing 2 is provided with 3, is slidably connected with each roller 3.The radial depth of each groove is elongated gradually in the counterclockwise direction.
Counterclockwise rotation, roller and body of tool circular arc locking face and bolt light rod part form stable self-locking; Rotation clockwise: remove the self-locking of roller and body of tool circular arc locking face and bolt light rod part.
Claims (5)
1. the provision for disengagement for nuclear power station major diameter high temperature bolt, it is characterized in that, comprise upper cover plate, lower cover, roller and housing, described upper and lower cover plate is arranged on respectively housing both sides, described roller two ends are arranged on respectively in the sliding tray of upper cover plate and lower cover, and described roller mid portion slides in elongated groove gradually at the radial depth of housing.
2. a kind of provision for disengagement for nuclear power station major diameter high temperature bolt according to claim 1, is characterized in that, there is circular hole at described upper and lower cover plate center, and circular hole outside is uniformly distributed and is useful on the curved channel sliding in roller end.
3. a kind of provision for disengagement for nuclear power station major diameter high temperature bolt according to claim 1, is characterized in that, described roller has 3, and there is convex body at each roller two ends, and is interspersed in respectively in 3 curved channels of upper and lower cover plate.
4. a kind of provision for disengagement for nuclear power station major diameter high temperature bolt according to claim 3, is characterized in that, the groove in described housing is provided with 3, is slidably connected with each roller.
5. a kind of provision for disengagement for nuclear power station major diameter high temperature bolt according to claim 4, is characterized in that, the radial depth of each groove is elongated gradually in the counterclockwise direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420068113.0U CN203726437U (en) | 2014-02-17 | 2014-02-17 | Dismounting device used for large-diameter high temperature bolt of nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420068113.0U CN203726437U (en) | 2014-02-17 | 2014-02-17 | Dismounting device used for large-diameter high temperature bolt of nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203726437U true CN203726437U (en) | 2014-07-23 |
Family
ID=51196543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420068113.0U Expired - Fee Related CN203726437U (en) | 2014-02-17 | 2014-02-17 | Dismounting device used for large-diameter high temperature bolt of nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203726437U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106272207A (en) * | 2015-05-18 | 2017-01-04 | 中核核电运行管理有限公司 | Pressurized-water reactor nuclear power plant rotates the pneumatic impact spanner of mother nut |
-
2014
- 2014-02-17 CN CN201420068113.0U patent/CN203726437U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106272207A (en) * | 2015-05-18 | 2017-01-04 | 中核核电运行管理有限公司 | Pressurized-water reactor nuclear power plant rotates the pneumatic impact spanner of mother nut |
| CN106272207B (en) * | 2015-05-18 | 2017-11-28 | 中核核电运行管理有限公司 | The pneumatic impact spanner of mother nut is rotated in pressurized-water reactor nuclear power plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20180217 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |