CN203500613U - Self-locating all-welded ball valve - Google Patents
Self-locating all-welded ball valve Download PDFInfo
- Publication number
- CN203500613U CN203500613U CN201320619999.9U CN201320619999U CN203500613U CN 203500613 U CN203500613 U CN 203500613U CN 201320619999 U CN201320619999 U CN 201320619999U CN 203500613 U CN203500613 U CN 203500613U
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- Prior art keywords
- valve
- valve body
- locating
- self
- welded ball
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- Expired - Lifetime
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- 238000003466 welding Methods 0.000 claims abstract description 6
- 239000004519 grease Substances 0.000 claims description 7
- 230000006978 adaptation Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000003754 machining Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Taps Or Cocks (AREA)
Abstract
Provided is a self-locating all-welded ball valve. The problem that an existing all-welded ball valve is high in cost, valve element and valve base matching errors are high, and a supporting plate and an auxiliary valve body can be easily blocked caused by locating pin hole machining accuracy is mainly solved. The self-locating all-welded ball valve is characterized in that a valve body comprises a left valve body and a right valve body which are welded on a contacting face, a first locating plate and a second locating plate which are in contact extend in the left valve body and the right valve body respectively, a through hole is formed between the first locating plate and the second locating plate, and rotating shafts matched with the through hole are formed at the two ends of a valve element in an extending mode. According to the self-locating all-welded ball valve, the integral design of the valve body and the locating plate is used, errors of locating standard machining and matching are removed from the design and the technology, working position locating of the valve element, a valve base and a valve rod is guaranteed on the design technology, product overall performance and stability are improved, a mechanism is provided with two welding lines, residual stress in the valve body is low, intensity is high, and sealing performance is good.
Description
Technical field
The utility model relates to a kind of ball valve, is specifically related to a kind of self-align all-welded ball valve.
Background technique
All-welded ball valve is long oil/gas pipe line emphasis valve products at present, spherical shell is due to its best bearing structure, lighter complete machine weight is subject to paying attention to more and more widely, existing spherical all-welded ball valve housing generally adopts forging process, any surface finish, but valve body wall thickness is thicker, and valve mass is larger, heavier.And by the housing of steel plate punched moulding, although wall thickness evenly and valve weight less, valve body is produced and is needed to adopt die forging process, owing to being uniform wall thickness, also need to be in valve body welding seat supporting base, cause valve body spherical shell weld seam many, welding region is large, and cost is higher.And in existing ball valve, be provided with locating stud or positioning plate more, to prevent spheroid and sealing surface generation slippage, produce the phenomenon of leakage, but adopt locating stud or positioning plate positioning supports, due to the error in processing and assembling, often occur that locating stud location is inaccurate, cause spheroid freely to rotate, affect mechanism performance.
Model utility content
In order to overcome the deficiency of background technique, the utility model provides a kind of self-align all-welded ball valve, has mainly solved existing all-welded ball valve cost high, and spool and valve seat mismatch error are large, between dunnage and auxiliary valve body due to positioning pin hole machining accuracy reason, easy stuck problem.
The technological scheme that the utility model adopts is: a kind of self-align all-welded ball valve, comprise valve body, valve rod, in described valve body, be provided with spool, valve seat, described valve body consists of symmetrical left valve barrel and right valve barrel, described left valve barrel and right valve barrel weld at surface of contact, in described left valve barrel, right valve barrel, be extended with respectively the first inconsistent positioning plate, the second positioning plate, between the first described positioning plate, the second positioning plate, be formed with through hole, described spool two ends are extended with the rotating shaft with through hole adaptation.
In the upper end of described rotating shaft, be provided with the square opening with valve rod end adaptation, described rotating shaft is through the first positioning plate, the second positioning plate.
Between described valve body and valve seat, be provided with seal ring and elastic force chamber, in described elastic force chamber, be provided with spring, described spring one end contacts with valve body, and the other end contacts with valve seat.
Described valve body is connected with grease pouring valve, in described valve body, is provided with oil duct, and described oil duct one end is communicated with spool side, and the other end is connected with grease pouring valve.
Described valve body is provided with stuffing box, described stuffing box and valve body welding, and described stuffing box top has been bolted transmission device.
The beneficial effects of the utility model are: adopt valve body and the design of positioning plate integral type, the error of eliminating positioning datum processing and coordinating from design and processes, in design technology, guarantee the location, working position of spool, valve seat, valve rod, improved product overall performance and stability; And mechanism only has two weld seams altogether, in valve body, residual stress is few, and intensity is high, and good seal performance is easy to assembly, and cost is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the enlarged view at Figure 1A place.
Fig. 3 is external structure of the present utility model.
1-valve body in figure, 101-left valve barrel, 1011-the first positioning plate, 102-right valve barrel, 1021-the second positioning plate, 2-valve rod, 3-spool, 31-rotating shaft, 311-square opening, 4-valve seat, 5-seal ring, 6-elastic force chamber, 61-spring, 7-grease pouring valve, 8-oil duct, 9-through hole, 10-stuffing box, 11-transmission device.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
If Fig. 1 is in conjunction with as shown in Fig. 2 to 3, a kind of self-align all-welded ball valve, comprise valve body 1, valve rod 2, in described valve body 1, be provided with spool 3, valve seat 4, described valve body 1 consists of symmetrical left valve barrel 101 and right valve barrel 102, described left valve barrel 101 and right valve barrel 102 weld at surface of contact, described left valve barrel 101, right valve barrel 102 is interior is extended with respectively the first inconsistent positioning plate 1011, the second positioning plate 1021, the first described positioning plate 1011, between the second positioning plate 1021, be formed with through hole 9, described spool 3 two ends are extended with the rotating shaft 31 with through hole 9 adaptations.
In the upper end of described rotating shaft 31, be provided with the square opening 311 with valve rod 2 end adaptations, described rotating shaft 31 is through the first positioning plate 1011, the second positioning plate 1021.Being convenient to valve rod 2 assemblings coordinates.
Between described valve body 1 and valve seat 4, be provided with seal ring 5 and elastic force chamber 6, in described elastic force chamber 6, be provided with spring 61, described spring 61 one end contact with valve body 1, and the other end contacts with valve seat 4.When valve body 1 internal pressure is less than critical value, spring 61 can promote valve seat 4 and stretch forward, makes valve seat 4 and spool 3 keep close contact; When valve body 1 internal pressure is greater than critical value, pressure can promote valve seat 4, and Compress Spring 61, makes to form gap between valve seat 4 and spool 3, forms releasing pressure automatically.
Described valve body 1 is connected with grease pouring valve 7, in described valve body 1, is provided with oil duct 8, and described oil duct 8 one end are communicated with spool 3 sides, and the other end is connected with grease pouring valve 7.Seal ring 5 in valve body 1 during because of accident damage, can inject seal gease and seal, thereby recovers sealability.
Described valve body 1 is provided with stuffing box 10, described stuffing box 10 and valve body 1 welding, and described stuffing box 10 tops have been bolted transmission device 11.
The concrete use of the utility model is as follows: during installation, valve body 1 adopts integral type design with positioning plate, left valve barrel 101, right valve barrel 102 are welded, just having completed traditional positioning plate installs, positioning plate is coordinated with square opening 311 and outer surface on spool 3, one procedure completes assembling, fundamentally avoids Sphere orientation inaccurate, from design and processes, has eliminated positioning datum machining error.
The beneficial effect of model utility is: adopt valve body and the design of positioning plate integral type, the error of eliminating positioning datum processing and coordinating from design and processes, in design technology, guarantee the location, working position of spool, valve seat, valve rod, improved product overall performance and stability; And mechanism only has two weld seams altogether, in valve body, residual stress is few, and intensity is high, and good seal performance is easy to assembly, and cost is low.
Claims (5)
1. a self-align all-welded ball valve, comprise valve body (1), valve rod (2), in described valve body (1), be provided with spool (3), valve seat (4), it is characterized in that: described valve body (1) consists of symmetrical left valve barrel (101) and right valve barrel (102), described left valve barrel (101) and right valve barrel (102) weld at surface of contact, described left valve barrel (101), in right valve barrel (102), be extended with respectively inconsistent the first positioning plate (1011), the second positioning plate (1021), described the first positioning plate (1011), between the second positioning plate (1021), be formed with through hole (9), described spool (3) two ends are extended with the rotating shaft (31) adaptive with through hole (9).
2. self-align all-welded ball valve according to claim 1, it is characterized in that: in the upper end of described rotating shaft (31), be provided with the square opening (311) with valve rod (2) end adaptation, described rotating shaft (31) is through the first positioning plate (1011), the second positioning plate (1021).
3. self-align all-welded ball valve according to claim 1, it is characterized in that: between described valve body (1) and valve seat (4), be provided with seal ring (5) and elastic force chamber (6), in described elastic force chamber (6), be provided with spring (61), described spring (61) one end contacts with valve body (1), and the other end contacts with valve seat (4).
4. self-align all-welded ball valve according to claim 1, it is characterized in that: described valve body (1) is connected with grease pouring valve (7), in described valve body (1), be provided with oil duct (8), described oil duct (8) one end is communicated with spool (3) side, and the other end is connected with grease pouring valve (7).
5. self-align all-welded ball valve according to claim 1, it is characterized in that: described valve body (1) is provided with stuffing box (10), described stuffing box (10) has been bolted transmission device (11) with valve body (1) welding, described stuffing box (10) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320619999.9U CN203500613U (en) | 2013-10-09 | 2013-10-09 | Self-locating all-welded ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320619999.9U CN203500613U (en) | 2013-10-09 | 2013-10-09 | Self-locating all-welded ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203500613U true CN203500613U (en) | 2014-03-26 |
Family
ID=50331593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320619999.9U Expired - Lifetime CN203500613U (en) | 2013-10-09 | 2013-10-09 | Self-locating all-welded ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203500613U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114289942A (en) * | 2021-12-30 | 2022-04-08 | 良正阀门有限公司 | Welding assembly process of all-welded fixed ball valve |
-
2013
- 2013-10-09 CN CN201320619999.9U patent/CN203500613U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114289942A (en) * | 2021-12-30 | 2022-04-08 | 良正阀门有限公司 | Welding assembly process of all-welded fixed ball valve |
| CN114289942B (en) * | 2021-12-30 | 2023-11-24 | 良正阀门有限公司 | Welding assembly process of all-welded fixed ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140326 |
|
| CX01 | Expiry of patent term |