CN103481028B - Processing method of valve seat sealing structure of ball valve - Google Patents
Processing method of valve seat sealing structure of ball valve Download PDFInfo
- Publication number
- CN103481028B CN103481028B CN201310397565.3A CN201310397565A CN103481028B CN 103481028 B CN103481028 B CN 103481028B CN 201310397565 A CN201310397565 A CN 201310397565A CN 103481028 B CN103481028 B CN 103481028B
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- China
- Prior art keywords
- seal groove
- valve seat
- annular seal
- sealing ring
- finished product
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Classifications
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- 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
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/001—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass valves or valve housings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention discloses a processing method of a valve seat sealing structure of a ball valve. The processing method comprises a valve seat semi-finished product, wherein at least one groove edge of two groove edges of an annular seal groove of the valve seat semi-finished product is a free edge, and a seal ring is freely placed in the annular seal groove; the processing method comprises the steps of 1, mounting an upper die on a punch of a pressing machine, and mounting a lower die on a workbench of the pressing machine; 2, placing the seal ring in the annular seal groove of the valve seat semi-finished product, placing the valve seat semi-finished product on the lower die, then starting the pressing machine to make the upper die act on the free edge of the annular seal groove, pressing and bending the free edge to make the free edge buckle the seal ring, and allowing a part of seal ring to protrude to the exterior of the annular seal groove. The sealing structure of a valve seat is formed by a punching forming method, the matching relation between the seal ring and the annular seal groove is more stable, and the degree of automation of the preparation technology of the valve seat is higher.
Description
Technical field
The present invention relates to a kind of processing method of the valve base sealing structure of ball valve, particularly to a kind of valve base sealing of ball valve
The processing method for stamping of structure.
Background technology
Ball valve is developed by plug valve, and its opening and closing element is a spheroid, and this spheroid is driven by valve rod, and around valve rod
Axis rotates and realizes the purpose of opening and closing.Ball valve is mainly used in blocking or connect the medium in pipeline, also can use
Regulation and control in fluid.
Publication No. cn101338821a, the Chinese invention of entitled " having the all-welded ball valve of novel seal structure " is special
Profit application, discloses a kind of ball valve, and this ball valve includes valve body and the locating shaft being arranged on valve body and valve rod base, joins in valve rod base
It is connected to valve rod, valve inner is provided with spheroid, being provided between spheroid and valve body can be with respect to the valve seat of both motions.Valve seat is provided with
Seal groove, is provided with sealing ring in this seal groove, and the exposed parts of this sealing ring are conflicted on spheroid.In order that seal groove can be tight
Thickly sealing ring is buckled in it, the circle that the Cross-section Design of seal groove is an opening, opening accounts for 1/6th of full circle
To a quarter.Because opening is little, therefore how the sealing ring being mated with seal groove inner circle to be put in seal groove, become impact
One problem of valve seat processing.
Content of the invention
It is an object of the present invention to provide a kind of processing method of the valve base sealing structure of ball valve.
For reaching above-mentioned purpose, the technical solution used in the present invention is: a kind of processing side of the valve base sealing structure of ball valve
Method, including valve seat semi-finished product, at least one of two trough rims of the annular seal groove of this valve seat semi-finished product trough rim is freely
Side, a sealing ring is free to put in described annular seal groove；The step of described processing method includes:
The first step: upper mould is installed on the drift of a press, lower mould is installed on the workbench of described press；
Second step: described sealing ring is placed in the annular seal groove of described valve seat semi-finished product, then by described valve seat half
Finished product is placed on described lower mould, and next starting described press makes described upper mould act on the freedom of described annular seal groove
Side, the described free margins that bend make described free margins clasp described sealing ring and allow that seal ring part is protruding to described ring packing
Outside groove.
Preferably technical scheme is: with the bistrique of a lapping device, the sealing ring exposing outside described annular seal groove is carried out
Grinding action, makes the part that described sealing ring exposes outside described annular seal groove have a plane or inclined-plane.
Because technique scheme is used, the present invention compared with prior art has following advantages and an effect:
1st, the present invention makes the seal groove of valve seat so that the cooperation of sealing ring and seal groove is closed using the method for curved pressing formation
It is more stable, the preparation technology automaticity of valve seat is higher.
2nd, the present invention exposes the part of seal groove and carries out grinding to form a plane or inclined-plane, with this plane to sealing ring
It is close to the spheroid setting of ball valve, change sealing structure in prior art and contact for face with the linear contact lay of spheroid so that sealing effectiveness
More preferably.
Brief description
Accompanying drawing 1 is valve seat semi-finished product schematic diagram.
Accompanying drawing 2 clasps the relation signal between annular seal groove and sealing ring after sealing ring for the free margins of annular seal groove
Figure.
Accompanying drawing 3 is ground to the sealing ring schematic diagram after plane for exposed portion.
In the figures above；1st, valve seat；2nd, free margins；3rd, annular seal groove；4th, sealing ring.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described:
It should be clear that structure depicted in this specification institute accompanying drawings, ratio, size etc., all only in order to coordinate description to be taken off
The content shown, so that those skilled in the art understands and reads, is not limited to the enforceable qualificationss of the present invention, therefore
Do not have technical essential meaning, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting the present invention
Under the effect that can be generated by and the purpose that can reach, all should still fall and obtain, in disclosed technology contents, the model that can cover
In enclosing.Meanwhile, in this specification cited as " on ", D score, "left", "right", " middle " and " one " etc. term, be also only
Be easy to describe understands, and is not used to limit the enforceable scope of the present invention, being altered or modified, no substantive of its relativeness
Under change technology contents, when being also considered as the enforceable category of the present invention.
A kind of embodiment: processing method of the valve base sealing structure of ball valve
A kind of processing method of the valve base sealing structure of ball valve, including valve seat semi-finished product, valve seat semi-finished product are referring to accompanying drawing 1
Shown, in the present embodiment, the other parts of valve seat 1 are all machined to be completed, and only surplus sealing ring 4 is not assembled to ring packing
In groove 3.In other embodiments, whether the processing of valve seat 1 can be not considered it is only necessary to consider annular seal groove 3 whether
Have been processed into the shape shown in accompanying drawing 1.
At least one of two trough rims of annular seal groove 3 of valve seat semi-finished product trough rim is free margins 2, a sealing ring 4
It is free to put in described annular seal groove 3, namely annular seal groove 3 is uncovered larger, sealing ring 4 can be allowed freely
Put in annular seal groove 3.The step of described processing method includes:
The first step: upper mould is installed on the drift of a press, lower mould is installed on the workbench of described press.Lower mould is used
In fixed valve base, the shape therefore descending the die cavity of mould will be with the form fit of the latter half of valve seat to hold valve seat standing valve
Seat.The effect of upper mould is to make free margins volume curved, and therefore the shape of its die cavity will be with the form fit of the free margins after processing.
Second step: described sealing ring 4 is placed in the seal groove 3 of described valve seat semi-finished product, then described valve seat half is become
Product are placed on described lower mould, and next starting described press makes described upper mould act on the free margins 2 of described seal groove 3, pressure
Curved described free margins 2 make described free margins 2 clasp described sealing ring 4 and allow that seal ring part 4 is protruding to described seal groove 3
Outward.
In another specific embodiment, can be for further processing to the above-mentioned valve seat preparing, specifically
With the bistrique of a lapping device, grinding action is carried out to the sealing ring 4 exposing outside described annular seal groove 3, make described sealing ring 4
The part exposed outside described annular seal groove 3 has a plane, can form inclined-plane with grinding in another specific embodiment.
Above-described embodiment only technology design to illustrate the invention and feature, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and implements according to this, can not be limited the scope of the invention with this.All according to the present invention
Equivalence changes or modification that spirit is made, all should be included within the scope of the present invention.
Claims (1)
1. a kind of processing method of the valve base sealing structure of ball valve it is characterised in that: include valve seat semi-finished product, this valve seat half becomes
At least one of two trough rims of the annular seal groove of product trough rim is free margins, and a sealing ring is free to put into described ring
In shape seal groove；The step of described processing method includes:
The first step: upper mould is installed on the drift of a press, lower mould is installed on the workbench of described press；
Second step: described sealing ring is placed in the annular seal groove of described valve seat semi-finished product, then by described valve seat semi-finished product
It is placed on described lower mould, next starting described press makes described upper mould act on the free margins of described annular seal groove, pressure
Curved described free margins make described free margins clasp described sealing ring and allow that seal ring part is protruding to outside described annular seal groove；
With the bistrique of a lapping device, grinding action is carried out to the sealing ring exposing outside described annular seal groove, so that described sealing ring is exposed
Part outside described annular seal groove has a plane or inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310397565.3A CN103481028B (en) | 2013-09-04 | 2013-09-04 | Processing method of valve seat sealing structure of ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310397565.3A CN103481028B (en) | 2013-09-04 | 2013-09-04 | Processing method of valve seat sealing structure of ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103481028A CN103481028A (en) | 2014-01-01 |
| CN103481028B true CN103481028B (en) | 2017-01-25 |
Family
ID=49821807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310397565.3A Active CN103481028B (en) | 2013-09-04 | 2013-09-04 | Processing method of valve seat sealing structure of ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103481028B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909509B (en) * | 2016-04-27 | 2017-12-19 | 南方中金环境股份有限公司 | A kind of water pump seal receptacle and its forming method |
| CN112555451B (en) * | 2020-10-29 | 2022-03-18 | 成都成高阀门有限公司 | Pressing process parameter determination method for all-welded ball valve seat sealing groove and semi-finished valve seat |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0439308A1 (en) * | 1990-01-22 | 1991-07-31 | Westinghouse Electric Corporation | Reactor coolant pump having improved dynamic secondary seal assembly |
| CN101338821A (en) * | 2008-08-14 | 2009-01-07 | 苏州市燃气设备阀门制造有限公司 | All-welded ball valve possessing novel style sealing structure |
| CN102518819A (en) * | 2011-12-22 | 2012-06-27 | 中国航天科技集团公司第六研究院第十一研究所 | Composite split type high-pressure sealing pair |
| CN202852053U (en) * | 2012-11-06 | 2013-04-03 | 沃泰工业阀门（中国）有限公司 | Tightly seal leakage prevention valve seat of soft seal fixed ball valve |
-
2013
- 2013-09-04 CN CN201310397565.3A patent/CN103481028B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0439308A1 (en) * | 1990-01-22 | 1991-07-31 | Westinghouse Electric Corporation | Reactor coolant pump having improved dynamic secondary seal assembly |
| CN101338821A (en) * | 2008-08-14 | 2009-01-07 | 苏州市燃气设备阀门制造有限公司 | All-welded ball valve possessing novel style sealing structure |
| CN102518819A (en) * | 2011-12-22 | 2012-06-27 | 中国航天科技集团公司第六研究院第十一研究所 | Composite split type high-pressure sealing pair |
| CN202852053U (en) * | 2012-11-06 | 2013-04-03 | 沃泰工业阀门（中国）有限公司 | Tightly seal leakage prevention valve seat of soft seal fixed ball valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103481028A (en) | 2014-01-01 |
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