CN106862906A - Steam generator manhole cover is dismounted and positioner - Google Patents
Steam generator manhole cover is dismounted and positioner Download PDFInfo
- Publication number
- CN106862906A CN106862906A CN201510915604.3A CN201510915604A CN106862906A CN 106862906 A CN106862906 A CN 106862906A CN 201510915604 A CN201510915604 A CN 201510915604A CN 106862906 A CN106862906 A CN 106862906A
- Authority
- CN
- China
- Prior art keywords
- manhole cover
- manhole
- thread bush
- guide post
- positioner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
Abstract
The invention belongs to nuclear power service technique field, a kind of steam generator manhole cover dismounting and positioner are specifically disclosed.It includes the guide post being fixedly connected with manhole collar through manhole cover, and is sleeved on the thread bush outside guide post；There is the sleeve of screwed hole centered on described thread bush, cartridge exterior processing step is provided with bearing on step, and outside screw thread set upper side, bearing upper end withstands on the lower surface of manhole cover to bearing holder (housing, cover)；Part more than thread bush step is located in the manhole of manhole cover, and is sleeved on outside guide post.Supported by manhole collar's inherent structure, be directed to bar and stretch into the bolt hole of manhole cover, using the Action of Gravity Field of manhole cover itself, make it along guide post slide downward；Guide post is connected by screw thread with manhole collar, and the rotation of screw thread causes that manhole cover glides or rises controllable；The limiting section of thread bush lower end is designed simultaneously, the position that manhole cover glides is defined, prevents operation from causing danger.
Description
Technical field
The invention belongs to nuclear power service technique field, and in particular to a kind of dismounting of steam generator manhole cover
With positioner.
Background technology
To ensure the convenience of maintenance, primary side of steam generator ball sealing head is designed with manhole obliquely, manhole
Lid quality is typically above 200kg, and is limited by space and position, and the positioning of dismounting and bolt hole is all less square
Just.Traditional manhole cover dismantling device has chain block, manhole cover elevator etc., often complex structure, valency
Lattice are high, are susceptible to accident, and do not possess bolt hole positioning function.A kind of simple, people from labour-saving of design
The service work that port lid is dismounted with positioning instrument to steam generator is extremely important.
The content of the invention
It is an object of the invention to provide a kind of dismounting of steam generator manhole cover and positioner, work as steam generation
When the maintenance of device primary side needs to open manhole, dismounting manhole that can be efficient, convenient, safe by the present apparatus.
Technical scheme is as follows：
A kind of steam generator manhole cover dismounting and positioner, including fixed through manhole cover and manhole collar
The guide post of connection, and it is sleeved on the thread bush outside guide post；There is screwed hole centered on described thread bush
Sleeve, cartridge exterior processing step is provided with bearing on step, bearing holder (housing, cover) outside screw thread set upper side,
Bearing upper end withstands on the lower surface of manhole cover；Part more than described thread bush step is located at the people of manhole cover
In hole, and it is sleeved on outside guide post.
In above-mentioned steam generator manhole cover dismounting with positioner：Described guide post includes manhole cover
Sliding section and canned paragraph；Described canned paragraph is screwed with manhole collar；Described manhole cover sliding Duan Weiyi
The smooth round bar of section, described thread bush is sleeved on outside described manhole cover sliding section.
In above-mentioned steam generator manhole cover dismounting with positioner：Described thread bush lower end is provided with dials
Bar.
In above-mentioned steam generator manhole cover dismounting with positioner：Described guide post also includes being located at
The spanner acting section of lower end, its section is hexagon or square.
In above-mentioned steam generator manhole cover dismounting with positioner：Described screw thread set upper side overall diameter d
1~2mm smaller than manhole cover diameter of bolt hole.
Remarkable result of the invention is as follows：Simply, light, economy, supports by manhole collar's inherent structure,
It is directed to bar to stretch into the bolt hole of manhole cover, using the Action of Gravity Field of manhole cover itself, makes it along guiding
Bar slide downward；Guide post is connected by screw thread with manhole collar, the rotation of screw thread cause manhole cover glide or
Rise controllable；The limiting section of thread bush lower end is designed simultaneously, the position that manhole cover glides is defined, prevents behaviour
Cause danger.
Further, installation thread bush is connected through a screw thread in the rear end of guide post, is fixedly mounted on thread bush
Driving lever, by rotating lever so that thread bush is being oriented to outside rod rear end, moves axially along guide post, enters one
Step limits the position that manhole cover glides.Screw-driven ensure that mobile accuracy, while what is be oriented to is intrinsic firm
Property will not deflect in ensure that manhole cover moving process.
Electric device, hydraulic mechanism, assembly pulley need not be equipped with.
The present invention has been effectively ensured the positioning between manhole cover and manhole collar's bolt hole, and manhole cover is in slipping
In do not produce rotation, manhole cover axis is with manhole collar's axis, manhole cover bolt hole and manhole collar's bolt hole in people
Kept before and after port lid movement coaxial.
Brief description of the drawings
Fig. 1 is steam generator manhole cover of the invention dismounting and positioner schematic diagram；
Fig. 2 is guide post schematic diagram；
Fig. 3 is thread bush schematic diagram；
In figure：1. manhole collar；2. guide post；3. manhole cover；4. thread bush；5. driving lever；6. bearing；401. lead
To portion；402. limiting sections.
Specific embodiment
Below by the drawings and the specific embodiments, the invention will be further described.
As shown in figure 1, the upper end of guide post 2 is by being threadably mounted on manhole collar 1, and guide post 2 is worn
Cross the bolt hole of manhole cover 3.
Thread bush 4 is enclosed within outside guide post 2, and the upper end of thread bush 4 guide part also through manhole cover 3
Manhole.Driving lever 5 can be installed on the limiting section of the lower end of thread bush 4, be easy to rotate thread bush 4.
The material of above-mentioned all of part can use carbon steel, stainless steel or steel alloy.
As shown in Fig. 2 guide post 2 is constituted by three sections, spanner acting section 201, manhole cover sliding section 202 and
Canned paragraph 203.
The outer processing screw thread of canned paragraph 203, it can be screwed with manhole collar 1；
Manhole cover sliding section 202 ensure that manhole cover 3, along guide rod axial slip, does not depart from guide post 2；
The section of spanner acting section 201 is hexagon or square, to guiding of being tightened by spanner or come loose
Bar 2.
As shown in figure 3, there is a sleeve of screwed hole at the Shi Yige centers of thread bush 4, cartridge exterior processing step,
Step top forms guide part 401, and step lower section is limiting section 402.
Bearing 6 is installed on step, the upper end of bearing 6 withstands on the lower surface of manhole cover 3, the limit below step
Position portion 402 is machined with screw, can be along the peace in the axially direction processing screw hole of thread bush 4, screw
Dress driving lever 5.
Distance definition by the top of thread bush 4 to bearing upper surface is L2, by the upper surface of bearing 6 to screw
The distance definition of axis is L3, and the overall diameter of the limiting section below step is defined as D.The upper end of thread bush 4
The overall diameter of guide part is d.
In the middle of the present embodiment
L2 sizes are the 1/2~1 of manhole cover thickness, there is provided the guiding distance of enough dismountings of manhole cover 3；
D 1~2mms smaller than manhole cover diameter of bolt hole；
D sizes are
L3 is 30~50mm；
One end of driving lever 5 has external screw thread, and the end is installed with above-mentioned screw, the outer surface annular knurl of driving lever 5
With increasing friction force.Driving lever 5 can circumferentially be uniformly distributed for multiple in thread bush 4.
The course of work is as follows：
When manhole cover is dismantled, can be directed to bar 2 and tighten using two groups of manhole cover dismounting and positioner, will
Thread bush 4 is rotated suit, clockwise by driving lever 5 respectively on thread bush 4 from the lower end of guide post 2
Thread bush 4 is stirred, until the end face of bearing 6 is withstood on the lower surface of manhole cover 3, the now guide part of thread bush 4
401 enter manhole cover bolt hole, and after remaining manhole stud is all pulled down, manhole cover 3 is tight under gravity
The patch outer wall of thread bush 4 is moved down, and departs from manhole collar 1.
When manhole cover is assembled, the thread bush 4 outside guide post 2 is stirred, manhole cover 3 is under the promotion of thread bush 4
Moved up along guide post, until its upper surface contacts with the sealing surface of manhole collar 1, because guide post 2 is firm
Property material, and the upper end overall diameter d 1~2mms smaller than manhole cover diameter of bolt hole of thread bush 4；Can protect well
Axiality between card manhole collar bolt hole, manhole cover bolt hole, preferably realizes manhole cover 3 and manhole collar 1
Between positioning.
Claims (6)
1. a kind of steam generator manhole cover is dismounted and positioner, it is characterised in that：It is included through manhole
The guide post (2) that lid is fixedly connected with manhole collar, and it is sleeved on guide post (2) thread bush (4) outward；
There is the sleeve of screwed hole centered on described thread bush (4), cartridge exterior processing step is provided with step
Bearing (6), bearing (6) is sleeved on outside thread bush (4) upper end, and bearing (6) upper end withstands on manhole cover
(3) lower surface；Part more than described thread bush (4) step is located in the bolt hole of manhole cover,
And it is sleeved on guide post (2) outward.
2. steam generator manhole cover as claimed in claim 1 is dismounted and positioner, it is characterised in that：
Described guide post (2) slides section (202) and canned paragraph (203) including manhole cover；Described canned paragraph
(203) fixed with manhole collar；It is one section of smooth round bar that described manhole cover slides section (202), described
Thread bush (4) is sleeved on described manhole cover and slides section (202) outward.
3. steam generator manhole cover as claimed in claim 1 or 2 is dismounted and positioner, and its feature exists
In：Described thread bush (4) lower end is provided with driving lever (5).
4. steam generator manhole cover as claimed in claim 1 or 2 is dismounted and positioner, and its feature exists
In：Described guide post (2) also includes the spanner acting section (201) positioned at lower end, and its section is hexagon
Or square.
5. the steam generator manhole cover as described in claim 1 or 4 is dismounted and positioner, and its feature exists
In：Described thread bush (4) upper end overall diameter d 1~2mms smaller than manhole cover diameter of bolt hole.
6. the steam generator manhole cover as described in any one in Claims 1 to 4 is dismounted and positioner,
It is characterized in that：The distance that bearing upper surface is arrived at the described top of thread bush 4 is the 1/2~1 of manhole cover thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510915604.3A CN106862906B (en) | 2015-12-10 | 2015-12-10 | The dismounting of steam generator manhole cover and positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510915604.3A CN106862906B (en) | 2015-12-10 | 2015-12-10 | The dismounting of steam generator manhole cover and positioning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106862906A true CN106862906A (en) | 2017-06-20 |
| CN106862906B CN106862906B (en) | 2019-06-18 |
Family
ID=59177064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510915604.3A Active CN106862906B (en) | 2015-12-10 | 2015-12-10 | The dismounting of steam generator manhole cover and positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106862906B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107363777A (en) * | 2017-07-20 | 2017-11-21 | 中国核动力研究设计院 | For steam generator Manhole Sealing Joints pad and the dismantling device of pad pressing plate |
| CN114800388A (en) * | 2022-05-24 | 2022-07-29 | 中广核核电运营有限公司 | Dismounting device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100716560B1 (en) * | 2006-11-24 | 2007-05-10 | 현대주철산업 주식회사 | Structure for joining outer cover and inner cover of manhole |
| CN202138505U (en) * | 2011-05-05 | 2012-02-08 | 江苏熔盛重工有限公司 | Fireproof manhole cover |
| CN203322253U (en) * | 2013-05-30 | 2013-12-04 | 中国昆仑工程公司 | Manhole structure |
| CN103933749A (en) * | 2014-03-31 | 2014-07-23 | 无锡金瑞特防腐设备有限公司 | Packing seal type evaporator |
| CN203822808U (en) * | 2014-01-04 | 2014-09-10 | 平湖市欣业标准件制造有限公司 | Shoulder nut for locking automobile tire shaft |
| CN205437731U (en) * | 2015-12-10 | 2016-08-10 | 核动力运行研究所 | Dismouting of steam generator manhole cover and positioner |
-
2015
- 2015-12-10 CN CN201510915604.3A patent/CN106862906B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100716560B1 (en) * | 2006-11-24 | 2007-05-10 | 현대주철산업 주식회사 | Structure for joining outer cover and inner cover of manhole |
| CN202138505U (en) * | 2011-05-05 | 2012-02-08 | 江苏熔盛重工有限公司 | Fireproof manhole cover |
| CN203322253U (en) * | 2013-05-30 | 2013-12-04 | 中国昆仑工程公司 | Manhole structure |
| CN203822808U (en) * | 2014-01-04 | 2014-09-10 | 平湖市欣业标准件制造有限公司 | Shoulder nut for locking automobile tire shaft |
| CN103933749A (en) * | 2014-03-31 | 2014-07-23 | 无锡金瑞特防腐设备有限公司 | Packing seal type evaporator |
| CN205437731U (en) * | 2015-12-10 | 2016-08-10 | 核动力运行研究所 | Dismouting of steam generator manhole cover and positioner |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107363777A (en) * | 2017-07-20 | 2017-11-21 | 中国核动力研究设计院 | For steam generator Manhole Sealing Joints pad and the dismantling device of pad pressing plate |
| CN107363777B (en) * | 2017-07-20 | 2019-02-26 | 中国核动力研究设计院 | For steam generator Manhole Sealing Joints gasket and the dismantling device of gasket pressing plate |
| CN114800388A (en) * | 2022-05-24 | 2022-07-29 | 中广核核电运营有限公司 | Dismounting device |
| CN114800388B (en) * | 2022-05-24 | 2023-09-22 | 中广核核电运营有限公司 | Dismounting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106862906B (en) | 2019-06-18 |
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