CN107283294A - A kind of nuclear power station piston check valve polishing jig holds positioner - Google Patents
A kind of nuclear power station piston check valve polishing jig holds positioner Download PDFInfo
- Publication number
- CN107283294A CN107283294A CN201610220446.4A CN201610220446A CN107283294A CN 107283294 A CN107283294 A CN 107283294A CN 201610220446 A CN201610220446 A CN 201610220446A CN 107283294 A CN107283294 A CN 107283294A
- Authority
- CN
- China
- Prior art keywords
- extension bar
- nuclear power
- power station
- check valve
- polishing jig
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/27—Work carriers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
Positioner is held the present invention relates to a kind of nuclear power station piston check valve polishing jig, including positioning disk, extension bar, retaining sleeve and clamping fastener nut, described retaining sleeve is arranged in the hole of extension bar, described clamping fastener nut is arranged on one end of extension bar through accommodating after set, the other end of described extension bar puts positioning disk.Compared with prior art, the present invention has the advantages that clamping, centering effect are good.
Description
Technical field
The present invention relates to a kind of valve-seating instrument, grind and use more particularly, to a kind of nuclear power station piston check valve
Clamping and positioning device.
Background technology
Piston check valve quantity is more in current nuclear power plant technique system, and system mostly more important used in nuclear island
In, valves leakage is the phenomenon of the failure that such valve relatively takes place frequently.According to the service technique requirement of this type check-valves,
If valve is leaked, it is necessary to be carried out to flap with valve seat to grinding in occurring.At present, to grinding in work, there are two
The deficiency of aspect：1st, flap and valve rod are integrated part, and valve rod is shorter, and valve aperture is smaller, operating personnel's
Hand is stretched into inside valve pocket, is not easy to grinding operation；2nd, to grinding in work, the hand-held valve rod of operating personnel, it is impossible to protect
Flap and valve seat central alignment are demonstrate,proved, valve seal line is ground partially.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of nuclear power station piston
Formula check-valves polishing jig holds positioner.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of nuclear power station piston check valve polishing jig holds positioner, including positioning disk, extension bar, retaining sleeve
With clamping fastener nut, described retaining sleeve is arranged in the hole of extension bar, and described clamping fastener nut, which is passed through, to be added
One end that extension bar is arranged on after set is held, the other end of described extension bar puts positioning disk.
Described positioning disk is step structure, and it coordinates with check-valves valve pocket internal diameter gap.
Described positioning disk center is provided with the intermediate throughholes coordinated with extension bar.
Described extension bar one end is provided with the external screw thread supporting with clamping fastener nut, and is provided with end with accommodating set
Corresponding shoulder hole, the other end is provided with square head corresponding with check-valves valve pocket.
The square head length of described extension bar is more than valve pocket depth 80mm.
Described retaining sleeve external diameter coordinates with extension bar shoulder hole for gap.
Described retaining sleeve one end is taper face, and mills out in taper face four equal openings.
Described clamping fastener nut is six square nuts, and inside is provided with fine thread, for being screwed with extension bar.
Compared with prior art, the present invention has advantages below：
1) clamping, centering effect are good, improve grinding quality.
2) cheap using material price, processing technology is simple.
3) it is easy to operate, can Reusability.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Wherein 1 it is positioning disk, 2 be extension bar, 3 be retaining sleeve, 4 be clamping fastener nut, 5 is valve rod.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out it is clear,
It is fully described by, it is clear that described embodiment is a part of embodiment of the present invention, rather than whole embodiments.
Based on the embodiment in the present invention, those of ordinary skill in the art are obtained on the premise of creative work is not made
The every other embodiment obtained, should all belong to the scope of protection of the invention.
As shown in figure 1, a kind of nuclear power station piston check valve polishing jig holds positioner, including positioning disk 1,
Extension bar 2, retaining sleeve 3 and clamping fastener nut 4, described retaining sleeve 3 are arranged in the hole of extension bar 2,
Described clamping fastener nut 4 is arranged on one end of extension bar 2, described extension bar 2 through accommodating after set 3
The other end put positioning disk 1.
Described positioning disk 1 is step structure, and it coordinates with check-valves valve pocket internal diameter gap.Described positioning disk
1 center is provided with the intermediate throughholes coordinated with extension bar.
Described one end of extension bar 2 is provided with the external screw thread supporting with clamping fastener nut, and is provided with and blessing in end
Corresponding shoulder hole is covered, the other end is provided with square head corresponding with check-valves valve pocket.The four directions of described extension bar 2
Head length is more than valve pocket depth 80mm, is easy to use handle operation.
The described external diameter of retaining sleeve 3 coordinates with extension bar shoulder hole for gap.Described one end of retaining sleeve 3 is taper
Face, and four equal openings are milled out in taper face, inwardly shunk during to clamp and clamp valve rod.
Described clamping fastener nut 4 is six square nuts, and inside is provided with fine thread, for being screwed with extension bar,
The one end of clamping fastener nut 4 is machined with the circular hole that internal diameter is slightly larger than retaining sleeve path, is easy to shrink clamping to retaining sleeve.
Application method is as shown in the Combinatorial resolution figure in accompanying drawing：
1) retaining sleeve 3 is arranged in the shoulder hole of extension bar 2；
2) 4 sets of clamping fastener nut retaining sleeve 3 be gently spun on extension bar 2；
3) valve rod 5 is penetrated after retaining sleeve 3, screws clamping fastener nut 4；
4) positioning disk 1 on the other end set of extension bar 2；
5) wiped on flap after abrasive pastes and specific purpose tool is put into valve pocket, can with rotatable handle extension bar 2
To carry out valve to grinding operation.
During the nuclear power station 1# unit regulations of Shandong, check-valves HY1-SFS-PL-V037 and
Leaked in HY1-VWS-PL-V062, using the present invention, complete valve to grinding work, and be successfully processed interior burst
Fall into.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in, can readily occur in various equivalent
Modifications or substitutions, these modifications or substitutions should all be included within the scope of the present invention.Therefore, it is of the invention
Protection domain should be defined by scope of the claims.
Claims (8)
1. a kind of nuclear power station piston check valve polishing jig holds positioner, it is characterised in that including positioning disk,
Extension bar, retaining sleeve and clamping fastener nut, described retaining sleeve are arranged in the hole of extension bar, described clamping
Clamp nut is arranged on one end of extension bar through accommodating after set, the other end of described extension bar puts positioning disk.
2. a kind of nuclear power station piston check valve polishing jig according to claim 1 holds positioner, its
It is characterised by, described positioning disk is step structure, it coordinates with check-valves valve pocket internal diameter gap.
3. a kind of nuclear power station piston check valve polishing jig according to claim 1 or 2 holds positioner,
Characterized in that, described positioning disk center is provided with the intermediate throughholes coordinated with extension bar.
4. a kind of nuclear power station piston check valve polishing jig according to claim 1 holds positioner, its
Be characterised by, described extension bar one end is provided with the external screw thread supporting with clamping fastener nut, and be provided with end with
The corresponding shoulder hole of set is accommodated, the other end is provided with square head corresponding with check-valves valve pocket.
5. a kind of nuclear power station piston check valve polishing jig according to claim 4 holds positioner, its
It is characterised by, the square head length of described extension bar is more than valve pocket depth 80mm.
6. a kind of nuclear power station piston check valve polishing jig according to claim 1 holds positioner, its
It is characterised by, described retaining sleeve external diameter coordinates with extension bar shoulder hole for gap.
7. a kind of nuclear power station piston check valve polishing jig according to claim 1 holds positioner, its
It is characterised by, described retaining sleeve one end is taper face, and mills out in taper face four equal openings.
8. a kind of nuclear power station piston check valve polishing jig according to claim 1 holds positioner, its
It is characterised by, described clamping fastener nut is six square nuts, and inside is provided with fine thread, for being revolved with extension bar
Close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610220446.4A CN107283294A (en) | 2016-04-11 | 2016-04-11 | A kind of nuclear power station piston check valve polishing jig holds positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610220446.4A CN107283294A (en) | 2016-04-11 | 2016-04-11 | A kind of nuclear power station piston check valve polishing jig holds positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107283294A true CN107283294A (en) | 2017-10-24 |
Family
ID=60092863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610220446.4A Pending CN107283294A (en) | 2016-04-11 | 2016-04-11 | A kind of nuclear power station piston check valve polishing jig holds positioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107283294A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112828688A (en) * | 2021-01-21 | 2021-05-25 | 深圳市东飞凌科技有限公司 | Electrode polishing method and jig |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190209699A (en) * | 1902-04-26 | 1902-06-25 | Karl Koppert | Improvements in and relating to Devices for Grinding Valves on their Seats. |
| GB190820147A (en) * | 1907-09-26 | 1909-02-18 | Milton Pinkelton Maxwell | Improvements in Grinding Attachments for Check Valves. |
| GB331574A (en) * | 1929-04-04 | 1930-07-04 | Victor Martin | A tool for use in grinding-in valves |
| CN2333484Y (en) * | 1998-07-21 | 1999-08-18 | 深圳世能实业有限公司 | Multi-functional valve grinder |
| CN105127463A (en) * | 2015-08-27 | 2015-12-09 | 宁波川景誉机械科技发展有限公司 | Shank structure for cutter clamping |
| CN205817574U (en) * | 2016-04-11 | 2016-12-21 | 中电华元核电工程技术有限公司 | Nuclear power station piston check valve polishing jig holds positioner |
-
2016
- 2016-04-11 CN CN201610220446.4A patent/CN107283294A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190209699A (en) * | 1902-04-26 | 1902-06-25 | Karl Koppert | Improvements in and relating to Devices for Grinding Valves on their Seats. |
| GB190820147A (en) * | 1907-09-26 | 1909-02-18 | Milton Pinkelton Maxwell | Improvements in Grinding Attachments for Check Valves. |
| GB331574A (en) * | 1929-04-04 | 1930-07-04 | Victor Martin | A tool for use in grinding-in valves |
| CN2333484Y (en) * | 1998-07-21 | 1999-08-18 | 深圳世能实业有限公司 | Multi-functional valve grinder |
| CN105127463A (en) * | 2015-08-27 | 2015-12-09 | 宁波川景誉机械科技发展有限公司 | Shank structure for cutter clamping |
| CN205817574U (en) * | 2016-04-11 | 2016-12-21 | 中电华元核电工程技术有限公司 | Nuclear power station piston check valve polishing jig holds positioner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112828688A (en) * | 2021-01-21 | 2021-05-25 | 深圳市东飞凌科技有限公司 | Electrode polishing method and jig |
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