CN209067902U - A kind of welding of valve chamber inner seat is from hold-down mechanism - Google Patents
A kind of welding of valve chamber inner seat is from hold-down mechanism Download PDFInfo
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- CN209067902U CN209067902U CN201821597369.5U CN201821597369U CN209067902U CN 209067902 U CN209067902 U CN 209067902U CN 201821597369 U CN201821597369 U CN 201821597369U CN 209067902 U CN209067902 U CN 209067902U
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- flap
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- seat
- welding
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Abstract
The utility model discloses a kind of welding of valve chamber inner seat from hold-down mechanism, and how solve makes the sealing surface between flap and valve seat be kept for the technical issues of being bonded when welding valve body.Include valve body (1) inner cavity left end outlet (11) on be socketed with valve seat (2), flap (8) are provided on valve seat (2), rocking bar (5) are connected on flap (8), fixing bolt (7) is arranged on the right side of flap (8), the upper end of rocking bar (5) is fixed in the inner cavity of valve body (1) by bolt (4), tapped through hole (12) are provided on valve body (1) on the right side of flap (8), screw rod (6) are bolted in tapped through hole (12), blind hole (13) are provided on the inner side end of screw rod (6), spring (10) and mandril (9) are provided in blind hole (13), the left end apical grafting of mandril (9) is on the right side of fixing bolt (7).Structure is simple, implements to be easy.
Description
Technical field
When carrying out valve seat welding the present invention relates to a kind of hold-down mechanism, in particular in a seed nucleus valve chamber from compacting machine
Structure, to guarantee that the sealing between valve seat and flap is adjacent in the welding process without leaking.
Background technique
Nuclear grade valve due to long-time in high temperature, high humidity, intense radiation working environment in, nuclear grade valve generallys use respectively
Stainless steel material is planted to meet functional requirement.Stainless steel material has good corrosion resistance, can satisfy the severe work of core valve
Environment, but there is glutinous, weak heat-dissipating, shrinkage big feature when workpiece welds in processing in stainless steel material.Some core valves are filling
With in the process, due to the requirement of particular job environment, need to carry out the welding of valve seat in the intracorporal valve chamber of valve, in welding,
Flap is provided on the valve seat, and the flap is linked together by gasket and valve seat, when welding seat, stainless steel
Valve seat non-uniform shrinkage phenomenon can occur due to heated, so that the sealing surface between flap and valve seat be bonded generation gap,
Cause valve leak, in welding seat, the sealing surface between flap and valve seat how to be made to keep being bonded, becomes scene and be badly in need of wanting
The technical issues of solution.
Summary of the invention
The present invention provides a kind of welding of valve chamber inner seat from hold-down mechanism, and how solve makes flap when welding valve body
The technical issues of sealing surface holding between valve seat is bonded.
The present invention is to solve the above technical problem by the following technical programs:
A kind of welding of valve chamber inner seat is socketed with valve in the outlet of the inner cavity left end of valve body from hold-down mechanism, including valve body
Seat, is provided with flap, the left side of flap is connected on flap together with the right side palette of valve seat on valve seat
The lower end of rocking bar, flap and rocking bar is linked together by fixing bolt, and fixing bolt is arranged on the right side of flap,
The upper end of rocking bar is fixed in the inner cavity of the valve body by bolt, tapped through hole is provided on the valve body on the right side of flap, in screw thread
It is bolted with screw rod in through-hole, is provided with blind hole on the inner side end of screw rod, the bottom hole of blind hole is provided with spring, on a spring left side
Mandril is provided in the blind hole of side, the left end apical grafting of mandril is on the right side of fixing bolt.
It is arranged on the right side of fixing bolt fluted, the left end of mandril is provided with Spherical plug, the dome crown
It connects in a groove.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of sub-assembly of the present invention.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawing:
A kind of welding of valve chamber inner seat is socketed in the inner cavity left end of valve body 1 outlet 11 from hold-down mechanism, including valve body 1
There is valve seat 2, flap 8 is provided on valve seat 2, the left side of flap 8 is together with the right side palette of valve seat 2, in valve
Rocking bar 5 is connected on valve 8, flap 8 and the lower end of rocking bar 5 are linked together by fixing bolt 7, and fixing bolt 7 is arranged
On the right side of flap 8, the upper end of rocking bar 5 is fixed in the inner cavity of valve body 1 by bolt 4, the valve body 1 on 8 right side of flap
On be provided with tapped through hole 12, screw rod 6 is bolted in tapped through hole 12, blind hole 13 is provided on the inner side end of screw rod 6,
The bottom hole of blind hole 13 is provided with spring 10, is provided with mandril 9, the left end apical grafting of mandril 9 in the blind hole 13 in 10 left side of spring
On the right side of fixing bolt 7.
Fluted 14 are arranged on the right side of fixing bolt 7, the left end of mandril 9 is provided with Spherical plug 15, it is spherical
Come directly towards 15 apical graftings within grooves 14.
A kind of welding of valve chamber inner seat is from hold-down mechanism, comprising the following steps:
Valve seat 2 is packed into 1 inner cavity left hole of valve body by the first step, flap 8 is packed under rocking bar in stomidium and with fixation spiral shell
Bolt 7 fastens, and rocking bar 5 is put into 1 inner cavity of valve body and is fixed with bolt 4；
Second step, the inner side end blind hole 13 that spring 10, mandril 9 are packed into screw rod 6, valve screw 6 is from 1 right end up time of valve body
Needle screw in tapped through hole 12,9 left end Spherical plug of mandril, 15 apical grafting within grooves 14 after, continue by screw rod 6 screw in 1 spiral shell of valve body
Line through-hole 12, until the tightly apical grafting of Spherical plug 15 is within grooves 14；
Third step, by clamping on the right side of valve body in circular seam welder chuck, welding gun is protruded into inner cavity on the left of valve body, welding seat 2
With 1 junction 3 of valve body；
4th step, rotary screw counterclockwise 6 take out the screw rod 6 for being equipped with Spherical plug 15, spring 10, will be equipped with valve
The immigration of valve body 1 darkroom of valve 8, rocking bar 5, fixing bolt 7, protrudes into 1 inner cavity left end of valve body outlet 11 for light source, from 1 right end of valve body
Body cavity is observed in inner cavity, and dull thread is emitted as qualification.
Claims (2)
1. a kind of valve chamber inner seat welding is from hold-down mechanism, including valve body (1), in the inner cavity left end of valve body (1) outlet (11)
Valve seat (2) are socketed with, are provided on valve seat (2) flap (8), the left side of flap (8) and the right side sealing paste of valve seat (2)
It is combined, is connected on flap (8) rocking bar (5), flap (8) with the lower end of rocking bar (5) is connect by fixing bolt (7)
Together, fixing bolt (7) is arranged on the right side of flap (8), and the upper end of rocking bar (5) is fixed on valve by bolt (4)
In the inner cavity of body (1), which is characterized in that tapped through hole (12) are provided on the valve body (1) on the right side of flap (8), it is logical in screw thread
Screw rod (6) are bolted in hole (12), blind hole (13) are provided on the inner side end of screw rod (6), are set in the bottom hole of blind hole (13)
Spring (10) are equipped with, are provided with mandril (9) in the blind hole (13) on the left of spring (10), the left end apical grafting of mandril (9) is in fixation
On the right side of bolt (7).
2. a kind of valve chamber inner seat according to claim 1 is welded from hold-down mechanism, which is characterized in that in fixing bolt
(7) fluted (14) are set on right side, are provided with Spherical plug (15) in the left end of mandril (9), Spherical plug (15) top
It connects in groove (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821597369.5U CN209067902U (en) | 2018-09-29 | 2018-09-29 | A kind of welding of valve chamber inner seat is from hold-down mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821597369.5U CN209067902U (en) | 2018-09-29 | 2018-09-29 | A kind of welding of valve chamber inner seat is from hold-down mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209067902U true CN209067902U (en) | 2019-07-05 |
Family
ID=67093771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821597369.5U Active CN209067902U (en) | 2018-09-29 | 2018-09-29 | A kind of welding of valve chamber inner seat is from hold-down mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209067902U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114280A (en) * | 2018-09-29 | 2019-01-01 | 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 |
| CN110814477A (en) * | 2019-11-15 | 2020-02-21 | 陕西航空电气有限责任公司 | Welding device of aircraft engine ion flame detector |
-
2018
- 2018-09-29 CN CN201821597369.5U patent/CN209067902U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114280A (en) * | 2018-09-29 | 2019-01-01 | 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 |
| CN109114280B (en) * | 2018-09-29 | 2023-12-26 | 山西江淮重工有限责任公司 | Valve seat welding self-pressing mechanism in valve cavity |
| CN110814477A (en) * | 2019-11-15 | 2020-02-21 | 陕西航空电气有限责任公司 | Welding device of aircraft engine ion flame detector |
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