CN208100227U - A kind of eccentric alignment tool for flange plate installation - Google Patents
A kind of eccentric alignment tool for flange plate installation Download PDFInfo
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- CN208100227U CN208100227U CN201721860880.5U CN201721860880U CN208100227U CN 208100227 U CN208100227 U CN 208100227U CN 201721860880 U CN201721860880 U CN 201721860880U CN 208100227 U CN208100227 U CN 208100227U
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- eccentric
- alignment tool
- sleeve
- flange plate
- plate installation
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Abstract
The utility model relates to nuclear power plant evaporator cover plate for manhole mounting technique fields, specifically disclose a kind of eccentric alignment tool for flange plate installation.A kind of eccentric alignment tool of flange plate installation, the tool includes eccentric shaft, big sleeve, small sleeve and end cap, wherein, eccentric shaft is the stepped shaft structure that two sections of axle center are not overlapped, big sleeve is cased on one end axis, it is cased with small sleeve on other end eccentric shaft, and is fixed big sleeve and small sleeve limit using end cap.A kind of eccentric alignment tool of flange plate installation described in the utility model; biggish force increasing ratio can be obtained; and hard mandrel is cladded with soft casing; it can utmostly protect flange screw injury-free; utilize rotation alignment tool; centering can be completed using the eccentricity of axis to operate, centering is quick and quality is high.
Description
Technical field
The invention belongs to nuclear power plant evaporator cover plate for manhole mounting technique fields, and in particular to one kind is pacified for flange plate
The eccentric alignment tool of dress.
Background technique
When being evaporated the lid operation of device (SG) primary side manhole pass, since the cover board of manhole is heavier, need by dedicated
Hoist engine realize the promotion of cover board.Evaporator cover plate for manhole is bolted in flange screw, due to evaporator people
Hole flange is downward 40 ° of inclined structures, after cover board is promoted to by hoist engine to be developed with flange, since cover board is self-possessed, can be led
Cover board and flange is caused to have certain eccentricity.Such as without special centering body, then it is difficult to ensure that cover board hole and flange screw it is same
Axis degree, centering work need to take considerable time, and it is difficult to ensure that centering quality.
Summary of the invention
The purpose of the present invention is to provide a kind of eccentric alignment tools of flange plate installation, can not damage flange screw
Screw thread under the conditions of, realize nuclear power station SG primary side cover plate for manhole centering.
Technical scheme is as follows：A kind of eccentric alignment tool of flange plate installation, the tool include eccentric shaft,
Big sleeve, small sleeve and end cap, wherein eccentric shaft is the stepped shaft structure that two sections of axle center are not overlapped, and is cased on one end axis
Big sleeve is cased with small sleeve on other end eccentric shaft, and is fixed big sleeve and small sleeve limit using end cap.
The eccentric shaft is relatively large in diameter for left end, right end diameter is smaller, and the ladder steel that left and right ends axle center is not overlapped
Axle construction, and hexgonal structure is processed into the left end of eccentric shaft.
The big sleeve matching is inserted on the axis on the right side of eccentric shaft, and the eccentric shaft on the left of eccentric shaft is inserted in small sleeve matching
On.
The big sleeve and small sleeve are nylon material.
The big sleeve is cylindrical structure, external dimensions and the unthreaded hole size phase in cover plate for manhole to be centred
Match；The small sleeve is cylindrical structure, and external dimensions matches with flange screw size.
End cap is installed in the eccentric shaft right end end, the right-hand end of small sleeve is fixed, and
End cap is fixed on eccentric shaft using screw.
Remarkable result of the invention is：A kind of eccentric alignment tool of flange plate installation of the present invention, can be with
Biggish force increasing ratio is obtained, and hard mandrel is cladded with soft casing, can utmostly protect flange screw injury-free, utilize rotation
Turn alignment tool, centering can be completed using the eccentricity of axis and operate, centering is quick and quality is high.
Detailed description of the invention
Fig. 1 is a kind of eccentric alignment tool structural schematic diagram of flange plate installation of the present invention；
Fig. 2 is that a kind of flange plate of the present invention is mounted on the signal of the mounting structure at evaporator manhole flange cover board
Figure；
In figure：1, eccentric shaft；2, big sleeve；3, small sleeve；4, end cap；5, screw；6, manhole flange；7, flange screw；
8, cover plate for manhole；9, manhole nut；10, manhole bolt.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, a kind of eccentric alignment tool of flange plate installation, including eccentric shaft 1, big sleeve 2, small sleeve 3
And end cap 4, wherein eccentric shaft 1 is relatively large in diameter for left end, right end diameter is smaller, and the ladder that left and right ends axle center is not overlapped
Steel shaft structure, wherein eccentric shaft left end is processed into hexgonal structure, and cylindrical tube structure is inserted on the right side of eccentric shaft 1
Big sleeve 2,2 inner diameter of big sleeve and the 1 left end diameter of eccentric shaft of nylon material structure match, and hold out against in left end
In hexgonal structure, big 2 external dimensions of sleeve matches with the unthreaded hole size in manhole flange cover board to be installed；In eccentric shaft 1
The small sleeve 3 of nylon material structure is cased on the lesser eccentric shaft of right end diameter, wherein 3 external dimensions of small sleeve and manhole method
7 size of flange screw in orchid 1 matches, and end cap 4 is equipped in 1 right end end of eccentric shaft, by the right-hand end of small sleeve 3
It fixes, and end cap 4 is fixed on eccentric shaft 1 using screw 5.
A kind of eccentric alignment tool of flange plate installation of the present invention in the specific use process, utilizes private volume
It raises machine and cover plate for manhole 8 is promoted to the light parallel with 6 face of manhole flange, the eccentric alignment tool is passed through cover plate for manhole 8
Hole is inserted into the flange screw 7 of manhole flange, is fully inserted into the right end of tool thin shaft part in flange screw 7, can be symmetrical two
A hole location is respectively inserted into an alignment tool, improves centering efficiency and quality；Utilize the six of spanner rotating eccentricity alignment tool left end
It is angular, it is slowly lifted cover plate for manhole 8, observes centering situation at any time in rotary course, together such as manhole cover plate hole and flange screw 7
The heart then stops rotating, and completes centering operation.
Claims (6)
1. a kind of eccentric alignment tool of flange plate installation, it is characterised in that：The tool includes eccentric shaft (1), big sleeve
(2), small sleeve (3) and end cap (4), wherein eccentric shaft (1) is the stepped shaft structure that two sections of axle center are not overlapped, one end axis
On be cased with big sleeve (2), be cased on the other end eccentric shaft small sleeve (3), and using end cap (4) by big sleeve (2) and small sleeve
(3) limit is fixed.
2. a kind of eccentric alignment tool of flange plate installation according to claim 1, it is characterised in that：The bias
Axis (1) is relatively large in diameter for left end, right end diameter is smaller, and the ladder steel shaft structure that left and right ends axle center is not overlapped, and in bias
It is processed into hexgonal structure in the left end of axis (1).
3. a kind of eccentric alignment tool of flange plate installation according to claim 2, it is characterised in that：The big set
Cylinder (2) matching is inserted on the axis on the right side of eccentric shaft (1), and small sleeve (3) matching is inserted on the eccentric shaft on the left of eccentric shaft (1).
4. a kind of eccentric alignment tool of flange plate installation according to claim 1 or 3, it is characterised in that：Described
Big sleeve (2) and small sleeve (3) are nylon material.
5. a kind of eccentric alignment tool of flange plate installation according to claim 1 or 3, which is characterized in that described
Big sleeve (2) is cylindrical structure, and external dimensions matches with the unthreaded hole size in cover plate for manhole (8) to be centred；It is described
Small sleeve (3) be cylindrical structure, external dimensions matches with flange screw (7) size.
6. a kind of eccentric alignment tool of flange plate installation according to claim 1, which is characterized in that described inclined
Mandrel (1) right end end is equipped with end cap (4), and the right-hand end of small sleeve (3) is fixed, and utilizes screw
(5) end cap (4) is fixed on eccentric shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721860880.5U CN208100227U (en) | 2017-12-27 | 2017-12-27 | A kind of eccentric alignment tool for flange plate installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721860880.5U CN208100227U (en) | 2017-12-27 | 2017-12-27 | A kind of eccentric alignment tool for flange plate installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208100227U true CN208100227U (en) | 2018-11-16 |
Family
ID=64130185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721860880.5U Active CN208100227U (en) | 2017-12-27 | 2017-12-27 | A kind of eccentric alignment tool for flange plate installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208100227U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111376041A (en) * | 2018-12-28 | 2020-07-07 | 中核核电运行管理有限公司 | Manhole cover plate centering device and evaporator primary side manhole cover plate centering method |
-
2017
- 2017-12-27 CN CN201721860880.5U patent/CN208100227U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111376041A (en) * | 2018-12-28 | 2020-07-07 | 中核核电运行管理有限公司 | Manhole cover plate centering device and evaporator primary side manhole cover plate centering method |
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