CN109114280B - Valve seat welding self-pressing mechanism in valve cavity - Google Patents
Valve seat welding self-pressing mechanism in valve cavity Download PDFInfo
- Publication number
- CN109114280B CN109114280B CN201811145456.1A CN201811145456A CN109114280B CN 109114280 B CN109114280 B CN 109114280B CN 201811145456 A CN201811145456 A CN 201811145456A CN 109114280 B CN109114280 B CN 109114280B
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- hole
- clack
- rocker
- 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.)
- Active
Links
- 238000003466 welding Methods 0.000 title claims abstract description 15
- 238000005056 compaction Methods 0.000 claims abstract description 3
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 5
- 125000003003 spiro group Chemical group 0.000 abstract description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000010030 laminating Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
- F16K27/0227—Check valves or pivoted valves with the valve members swinging around an axis located at the edge of or outside the valve member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
Abstract
The invention discloses a valve seat welding self-compaction mechanism in a valve cavity, which solves the technical problem of how to keep the sealing surface between a valve clack and a valve seat attached when a valve body is welded. Including cup jointed disk seat (2) on inner chamber left end export (11) of valve body (1), be provided with valve clack (8) on disk seat (2), be connected with rocker (5) on valve clack (8), fixing bolt (7) set up on the right-hand member face of valve clack (8), the upper end of rocker (5) is fixed in the inner chamber of valve body (1) through bolt (4), be provided with threaded through hole (12) on valve body (1) on valve clack (8) right side, the spiro union has screw rod (6) in threaded through hole (12), be provided with blind hole (13) on the inboard terminal surface of screw rod (6), be provided with spring (10) and ejector pin (9) in the centre of blind hole (13), the left end top of ejector pin (9) connects on the right flank of fixing bolt (7). Simple structure and easy implementation.
Description
Technical Field
The invention relates to a compressing mechanism, in particular to a self-compressing mechanism for welding a valve seat in a nuclear valve cavity so as to ensure that the seal between the valve seat and a valve clack is tightly attached in the welding process without leakage.
Background
The nuclear grade valve is usually made of various stainless steel materials to meet the functional requirements because the valve is in a working environment with high temperature, high humidity and strong radiation for a long time. The stainless steel material has good corrosion resistance and can meet the severe working environment of the nuclear valve, but the stainless steel material has the characteristics of poor adhesion and heat dissipation during processing and large contractibility during workpiece welding. In the assembly process of some nuclear valves, due to the requirement of a special working environment, the valve seat needs to be welded in a valve cavity in the valve body, when the valve seat is welded, the valve clack is arranged on the valve seat and is connected with the valve seat through a sealing gasket, when the valve seat is welded, the stainless steel valve seat can generate uneven shrinkage phenomenon due to heating, so that a gap is formed by the joint of the sealing surfaces between the valve clack and the valve seat, valve leakage is caused, and when the valve seat is welded, the problem of how to keep the joint of the sealing surfaces between the valve clack and the valve seat is solved.
Disclosure of Invention
The invention provides a self-pressing mechanism for welding a valve seat in a valve cavity, which solves the technical problem of how to keep the sealing surface between a valve clack and the valve seat attached when a valve body is welded.
The invention solves the technical problems by the following technical proposal:
the utility model provides a valve seat welding is from hold-down mechanism in valve pocket, including the valve body, cup joint the disk seat on the inner chamber left end export of valve body, be provided with the valve clack on the disk seat, the left end face of valve clack is in the same place with the right-hand member face seal laminating of disk seat, be connected with the rocker on the valve clack, the valve clack is in the same place through fixing bolt connection with the lower extreme of rocker, fixing bolt sets up on the right-hand member face of valve clack, the upper end of rocker passes through the bolt to be fixed in the inner chamber of valve body, be provided with the screw through-hole on the valve body on valve clack right side, the spiro union has the screw rod in the screw through-hole, be provided with the blind hole on the inboard terminal surface of screw rod, be provided with the spring at the hole bottom of blind hole on the spring left side, be provided with the ejector pin in the blind hole of spring left, the left end top of ejector pin connects on fixing bolt's right flank.
The right side face of the fixing bolt is provided with a groove, the left end of the ejector rod is provided with a spherical top head, and the spherical top head is propped in the groove.
Drawings
Fig. 1 is a schematic view of the structure of the assembly of the present invention.
Detailed Description
The invention is described in detail below with reference to the attached drawing figures:
the utility model provides a valve seat welding is from hold-down mechanism in valve pocket, including valve body 1, cup joint disk seat 2 on the inner chamber left end export 11 of valve body 1, be provided with valve clack 8 on disk seat 2, the left end face of valve clack 8 is in the same place with the right-hand member face seal laminating of disk seat 2, be connected with rocker 5 on valve clack 8, the lower extreme of valve clack 8 and rocker 5 is in the same place through fixing bolt 7, fixing bolt 7 sets up on the right-hand member face of valve clack 8, the upper end of rocker 5 passes through bolt 4 to be fixed in the inner chamber of valve body 1, be provided with threaded through hole 12 on valve body 1 on the right side of valve clack 8, the spiro union has screw 6 in threaded through hole 12, be provided with blind hole 13 on the inboard terminal surface of screw 6, be provided with spring 10 at the hole bottom of blind hole 13, be provided with ejector pin 9 in the blind hole 13 on the left of spring 10, the left end top of ejector pin 9 connects on the right flank of fixing bolt 7.
A groove 14 is arranged on the right side surface of the fixing bolt 7, a spherical plug 15 is arranged at the left end of the ejector rod 9, and the spherical plug 15 is propped in the groove 14.
A valve seat welding self-compaction mechanism in a valve cavity comprises the following steps:
firstly, a valve seat 2 is arranged in a left hole of an inner cavity of a valve body 1, a valve clack 8 is arranged in a hole at the lower end of a rocker and is fastened by a fixing bolt 7, and a rocker 5 is arranged in the inner cavity of the valve body 1 and is fixed by a bolt 4;
secondly, the spring 10 and the ejector rod 9 are arranged in a blind hole 13 on the inner side end surface of the screw rod 6, the valve screw rod 6 is screwed into the threaded through hole 12 clockwise from the right end of the valve body 1, after the spherical top head 15 at the left end of the ejector rod 9 is propped in the groove 14, the screw rod 6 is continuously screwed into the threaded through hole 12 of the valve body 1 until the spherical top head 15 is tightly propped in the groove 14;
thirdly, clamping the right side of the valve body on a chuck of a circular seam welder, extending a welding gun into the inner cavity of the left side of the valve body, and welding a joint 3 between the valve seat 2 and the valve body 1;
and fourthly, rotating the screw rod 6 anticlockwise, taking out the screw rod 6 provided with the spherical plug 15 and the spring 10, moving the valve body 1 provided with the valve clack 8, the rocker 5 and the fixing bolt 7 into a darkroom, extending the light source into the left end outlet 11 of the inner cavity of the valve body 1, observing the inner cavity of the valve body from the inner cavity of the right end of the valve body 1, and ejecting no light into a qualified state.
Claims (1)
1. The valve seat welding self-compaction mechanism in the valve cavity comprises a valve body (1), a valve seat (2) is sleeved on an outlet (11) at the left end of an inner cavity of the valve body (1), a valve clack (8) is arranged on the valve seat (2), the left end face of the valve clack (8) is sealed and attached with the right end face of the valve seat (2), a rocker (5) is connected on the valve clack (8), the lower ends of the valve clack (8) and the rocker (5) are connected together through a fixing bolt (7), the fixing bolt (7) is arranged on the right end face of the valve clack (8), the upper end of the rocker (5) is fixed in an inner cavity of the valve body (1) through a bolt (4), and is characterized in that a threaded through hole (12) is formed in the valve body (1) on the right side of the valve clack (8), a screw (6) is screwed in the threaded through hole (12), a blind hole (13) is formed in the inner side end face of the screw (6), a spring (10) is arranged at the bottom of the blind hole (13), a push rod (9) is arranged in the blind hole (13) on the left side of the spring (10), and the left end of the push rod (9) is propped against the right side face of the fixed bolt (7); a groove (14) is formed in the right side surface of the fixing bolt (7), a spherical plug (15) is arranged at the left end of the ejector rod (9), and the spherical plug (15) is propped in the groove (14); and assembled by the steps of:
firstly, a valve seat (2) is arranged in a left hole of an inner cavity of a valve body (1), a valve clack (8) is arranged in a hole at the lower end of a rocker and is fastened by a fixing bolt (7), and a rocker (5) is arranged in the inner cavity of the valve body (1) and is fixed by a bolt (4);
secondly, loading the spring (10) and the ejector rod (9) into a blind hole (13) on the inner side end surface of the screw rod (6), screwing the valve screw rod (6) into the threaded through hole (12) clockwise from the right end of the valve body (1), and continuously screwing the screw rod (6) into the threaded through hole (12) of the valve body (1) after the spherical plug (15) at the left end of the ejector rod (9) is propped in the groove (14) until the spherical plug (15) is tightly propped in the groove (14);
thirdly, clamping the right side of the valve body on a chuck of a circular seam welder, extending a welding gun into the inner cavity of the left side of the valve body, and welding a joint (3) between the valve seat (2) and the valve body (1);
and fourthly, rotating the screw rod (6) anticlockwise, taking out the screw rod (6) provided with the spherical plug (15) and the spring (10), moving the valve body (1) provided with the valve clack (8), the rocker (5) and the fixing bolt (7) into a darkroom, extending the light source into the left end outlet (11) of the inner cavity of the valve body (1), observing the inner cavity of the valve body from the inner cavity of the right end of the valve body (1), and enabling the lightless injection to be qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811145456.1A CN109114280B (en) | 2018-09-29 | 2018-09-29 | Valve seat welding self-pressing mechanism in valve cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811145456.1A CN109114280B (en) | 2018-09-29 | 2018-09-29 | Valve seat welding self-pressing mechanism in valve cavity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109114280A CN109114280A (en) | 2019-01-01 |
| CN109114280B true CN109114280B (en) | 2023-12-26 |
Family
ID=64857413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811145456.1A Active CN109114280B (en) | 2018-09-29 | 2018-09-29 | Valve seat welding self-pressing mechanism in valve cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109114280B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH256060A (en) * | 1943-04-09 | 1948-07-31 | Friedrich Gerdts Gustav | Flap valve. |
| GB773640A (en) * | 1954-09-14 | 1957-05-01 | Gen Electric | Improvements relating to shut-off valves |
| CN201462103U (en) * | 2009-07-31 | 2010-05-12 | 段秀忠 | Counter-current valve with switch |
| CN209067902U (en) * | 2018-09-29 | 2019-07-05 | 山西江淮重工有限责任公司 | A kind of welding of valve chamber inner seat is from hold-down mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160341320A1 (en) * | 2015-05-21 | 2016-11-24 | Mark Taylor | Cleaning mechanisms for check valves |
-
2018
- 2018-09-29 CN CN201811145456.1A patent/CN109114280B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH256060A (en) * | 1943-04-09 | 1948-07-31 | Friedrich Gerdts Gustav | Flap valve. |
| GB773640A (en) * | 1954-09-14 | 1957-05-01 | Gen Electric | Improvements relating to shut-off valves |
| CN201462103U (en) * | 2009-07-31 | 2010-05-12 | 段秀忠 | Counter-current valve with switch |
| CN209067902U (en) * | 2018-09-29 | 2019-07-05 | 山西江淮重工有限责任公司 | A kind of welding of valve chamber inner seat is from hold-down mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109114280A (en) | 2019-01-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109114280B (en) | Valve seat welding self-pressing mechanism in valve cavity | |
| CN205253649U (en) | Ultrasonic transducer | |
| CN208350290U (en) | A kind of pipe hydraulic pressure test fixture connector | |
| CN207005504U (en) | Explosion proof joint electrically | |
| CN209067902U (en) | A kind of welding of valve chamber inner seat is from hold-down mechanism | |
| CN206653064U (en) | A kind of c-type machine National People's Congress stroke soldering turret boom structure | |
| CN104633324B (en) | Pipe spherical joint reinforcement sealing structure | |
| CN202691171U (en) | High pound level forged steel full-open swing check valve | |
| CN108799576A (en) | A kind of quick action emergency valve | |
| CN211738008U (en) | Hydraulic conical surface metal sealing process plug | |
| CN207830575U (en) | A seating three-eccentric-butterfly-valve living | |
| CN209294413U (en) | A kind of combinaing valve body formula valve seat construction for shut-off valve | |
| CN219174615U (en) | Device for shielding inner cavity of chemical nickel plating workpiece | |
| CN208057963U (en) | High leakproofness low temperature butterfly valve | |
| CN207735857U (en) | Precise positioning welds Gas Pipe welding jig | |
| CN207064667U (en) | A kind of heavy-caliber high-temperature high pressure all-metal sealing butterfly valve | |
| CN201462059U (en) | Ball value for refrigeration and air conditioning device | |
| RU171887U1 (en) | Towel | |
| CN209619494U (en) | A kind of electrogalvanizing roller conductive head device | |
| CN205173086U (en) | Pressurization control mechanism of die casting machine | |
| CN208237303U (en) | A kind of joint component | |
| CN216622014U (en) | Boiler pipe joint water pressure testing arrangement | |
| CN211042695U (en) | Valve test tool | |
| CN217301213U (en) | Welding nut for welding | |
| CN211697278U (en) | Membrane bucket pressure test frock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |