CN103480758B - The processing method of the valve base sealing structure of ball valve - Google Patents
The processing method of the valve base sealing structure of ball valve Download PDFInfo
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- CN103480758B CN103480758B CN201310396489.4A CN201310396489A CN103480758B CN 103480758 B CN103480758 B CN 103480758B CN 201310396489 A CN201310396489 A CN 201310396489A CN 103480758 B CN103480758 B CN 103480758B
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- seal groove
- annular seal
- valve seat
- sealing ring
- valve
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Abstract
The processing method of the valve base sealing structure of ball valve, comprises valve seat semi-finished product, and one of at least trough rim in two trough rims of the half-finished annular seal groove of this valve seat is free margins, and a sealing ring can freely put into described annular seal groove; The step of described processing method comprises: be placed in by described sealing ring in the half-finished annular seal groove of described valve seat, then described valve seat semi-finished product are placed on a roller press, the described roller press of following startup makes the milled head of described roller press act on the free margins of described annular seal groove, and the described free margins that bends makes described free margins fasten described sealing ring and allows that seal ring part is protruding to outside described annular seal groove.The present invention adopts the method for rolling forming to make the hermetically-sealed construction of valve seat, makes the matching relationship of sealing ring and annular seal groove more stable, and preparation technology's automaticity of valve seat is higher.
Description
Technical field
The present invention relates to a kind of processing method of valve base sealing structure of ball valve, particularly a kind of rolling and processing method of valve base sealing structure of ball valve.
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 the object realizing opening and closing that rotates around the axis of valve rod.Ball valve is mainly used in blocking or connect the medium in pipeline, also can be used for the regulating and control of fluid.
Publication number is CN101338821A, name is called the Chinese invention patent application of " all-welded ball valve with novel seal structure ", disclose a kind of ball valve, this ball valve comprises valve body and the locating shaft be arranged on valve body and valve rod base, valve rod has been connected in valve rod base, valve inner is provided with spheroid, and being provided with between spheroid and valve body can relative to the valve seat of both motions.Valve seat is provided with seal groove, is provided with sealing ring in sealing groove, and the exposed parts of sealing circle is conflicted on spheroid.In order to enable seal groove closely buckle within it by sealing ring, the cross section of seal groove is designed to the circle of an opening, opening accounts for 1/1 to four/6th of full circle.Because opening is little, therefore how the sealing ring mated with seal groove inner circle is put into seal groove, become the problem affecting valve seat processing.
Summary of the invention
The object of the invention is to provide a kind of processing method of valve base sealing structure of ball valve.
For achieving the above object, the technical solution used in the present invention is: a kind of processing method of valve base sealing structure of ball valve, comprise valve seat semi-finished product, an one of at least trough rim in two trough rims of the half-finished annular seal groove of this valve seat is free margins, and a sealing ring can freely put into described seal groove; The step of described processing method comprises: be placed in by described sealing ring in the half-finished annular seal groove of described valve seat, then described valve seat semi-finished product are placed on a roller press, the described roller press of following startup makes the milled head of described roller press act on the free margins of described annular seal groove, and the described free margins that bends makes described free margins fasten described sealing ring and allows that seal ring part is protruding to outside described annular seal groove.
Preferred technical scheme is: carry out grinding action with the bistrique of a lapping device to the sealing ring exposed outside described annular seal groove, makes the described sealing ring part exposed outside described annular seal groove have plane or an inclined-plane.
Because technique scheme is used, the present invention compared with prior art has following advantages and effect:
1, the present invention adopts the method for rolling forming to make the seal groove of valve seat, makes the matching relationship of sealing ring and seal groove more stable, and preparation technology's automaticity of valve seat is higher.
2, the present invention carries out grinding to form a plane or inclined-plane to the part that sealing ring exposes seal groove, and the spheroid being close to ball valve with this plane or inclined-plane is arranged, and changing hermetically-sealed construction in prior art is that face contacts with the linear contact lay of spheroid, makes sealing effectiveness better.
Accompanying drawing explanation
Accompanying drawing 1 is valve seat semi-finished product schematic diagrames.
Accompanying drawing 2 is the relation schematic diagram that the free margins of annular seal groove fastens after sealing ring between annular seal groove and sealing ring.
Accompanying drawing 3 is ground to the sealing ring schematic diagram after plane for exposed portion.
In above accompanying drawing; 1, valve seat; 2, free margins; 3, annular seal groove; 4, sealing ring.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described:
Notice, structure, ratio, size etc. that this description institute accompanying drawings illustrates, content all only in order to coordinate description to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the present invention, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the present invention can produce and the object that can reach, still all should drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, quote in this description as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the present invention.
Embodiment: a kind of processing method of valve base sealing structure of ball valve
A processing method for the valve base sealing structure of ball valve, comprises valve seat semi-finished product, and valve seat semi-finished product are see shown in accompanying drawing 1, and in the present embodiment, the other parts of valve seat 1 machine all, and only surplus sealing ring 4 is not assembled in annular seal groove 3.In other embodiments, whether the processing of valve seat 1 can be not considered, and only needs to consider whether annular seal groove 3 has been processed into the shape shown in accompanying drawing 1.
An one of at least trough rim in two trough rims of the half-finished annular seal groove 3 of valve seat is free margins 2, one sealing ring 4 freely can put into described annular seal groove 3, also be the uncovered comparatively large of seal groove 3, can allow that annular seal groove 3 freely put into by sealing ring 4.
The step of processing method comprises: be placed in by described sealing ring 4 in the half-finished annular seal groove 3 of described valve seat, then described valve seat semi-finished product are placed on a roller press, the described roller press of following startup makes the milled head of described roller press act on the free margins 2 of described annular seal groove 3, and the described free margins 2 that bends makes described free margins 2 fasten described sealing ring 4 and allows that seal ring part 4 is protruding to outside described annular seal groove 3.
In the embodiment that another is concrete, can be for further processing to the above-mentioned valve seat prepared, specifically with the bistrique of a lapping device, grinding action is carried out to the sealing ring 4 exposed outside described annular seal groove 3, the part that described sealing ring 4 is exposed outside described seal groove 3 has a plane, can grinding be formed with inclined-plane in another detailed description of the invention.
Above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (2)
1. a processing method for the valve base sealing structure of ball valve, is characterized in that: comprise valve seat semi-finished product, and one of at least trough rim in two trough rims of the half-finished annular seal groove of this valve seat is free margins, and a sealing ring can freely put into described seal groove; The step of described processing method comprises: be placed in by described sealing ring in the half-finished annular seal groove of described valve seat, then described valve seat semi-finished product are placed on a roller press, the described roller press of following startup makes the milled head of described roller press act on the free margins of described annular seal groove, and the described free margins that bends makes described free margins fasten described sealing ring and allows that seal ring part is protruding to outside described annular seal groove.
2. the processing method of the valve base sealing structure of ball valve according to claim 1, it is characterized in that: with the bistrique of a lapping device, grinding action is carried out to the sealing ring exposed outside described annular seal groove, make the described sealing ring part exposed outside described annular seal groove have plane or an inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310396489.4A CN103480758B (en) | 2013-09-04 | 2013-09-04 | The processing method of the valve base sealing structure of ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310396489.4A CN103480758B (en) | 2013-09-04 | 2013-09-04 | The processing method of the valve base sealing structure of ball valve |
Publications (2)
| Publication Number | Publication Date |
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| CN103480758A CN103480758A (en) | 2014-01-01 |
| CN103480758B true CN103480758B (en) | 2015-08-05 |
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| CN201310396489.4A Active CN103480758B (en) | 2013-09-04 | 2013-09-04 | The processing method of the valve base sealing structure of ball valve |
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Citations (5)
| 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 |
| CN2365461Y (en) * | 1999-03-25 | 2000-02-23 | 王春年 | Sealing apparatus for flange valve |
| CN201858386U (en) * | 2010-10-22 | 2011-06-08 | 承德建龙特殊钢有限公司 | Sealing structure of reversing valve for heat accumulating type heating furnace |
| CN202215607U (en) * | 2011-08-30 | 2012-05-09 | 镇江飞亚轴承有限责任公司 | Front end sealing device for clutch release bearing |
| CN202266686U (en) * | 2011-10-17 | 2012-06-06 | 天津市卡尔斯阀门有限公司 | Novel rolling steel ring type seal face of butterfly valve |
-
2013
- 2013-09-04 CN CN201310396489.4A patent/CN103480758B/en active Active
Patent Citations (5)
| 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 |
| CN2365461Y (en) * | 1999-03-25 | 2000-02-23 | 王春年 | Sealing apparatus for flange valve |
| CN201858386U (en) * | 2010-10-22 | 2011-06-08 | 承德建龙特殊钢有限公司 | Sealing structure of reversing valve for heat accumulating type heating furnace |
| CN202215607U (en) * | 2011-08-30 | 2012-05-09 | 镇江飞亚轴承有限责任公司 | Front end sealing device for clutch release bearing |
| CN202266686U (en) * | 2011-10-17 | 2012-06-06 | 天津市卡尔斯阀门有限公司 | Novel rolling steel ring type seal face of butterfly valve |
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| Publication number | Publication date |
|---|---|
| CN103480758A (en) | 2014-01-01 |
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