CN102506188B - Interchangeable processing technology for sealing surfaces of shutter and valve body - Google Patents
Interchangeable processing technology for sealing surfaces of shutter and valve body Download PDFInfo
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- CN102506188B CN102506188B CN 201110346152 CN201110346152A CN102506188B CN 102506188 B CN102506188 B CN 102506188B CN 201110346152 CN201110346152 CN 201110346152 CN 201110346152 A CN201110346152 A CN 201110346152A CN 102506188 B CN102506188 B CN 102506188B
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- flashboard
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- 238000007789 sealing Methods 0.000 title claims abstract description 120
- 238000005516 engineering process Methods 0.000 title claims abstract description 27
- 238000005266 casting Methods 0.000 claims abstract description 12
- 238000003466 welding Methods 0.000 claims abstract description 12
- 238000004140 cleaning Methods 0.000 claims abstract description 5
- 238000005553 drilling Methods 0.000 abstract 1
- 238000003754 machining Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009960 carding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
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- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Sliding Valves (AREA)
Abstract
The invention relates to an interchangeable processing technology for sealing surfaces of a shutter and a valve body. The processing technology for the shutter comprises the following steps of: casting, overlay-welding the sealing surfaces on the two sides, turning the connecting hole and the circumference of the shutter, installing a connecting rod inside the connecting hole, installing the shutter to a special machine horizontal assembly with a fixed-gradient power head by the connecting rod, fine-turning the sealing surfaces on the two sides of the shutter, and grinding the sealing surfaces on the two sides of the shutter; and the processing technology for the valve body comprises the following steps of: casting, overlay-welding the sealing surfaces on the two sides, processing the flanges on the two sides, processing the middle flange, installing the middle flange to a special machine right-angled clamp by a rotary disc and a gradient plate, fine-turning the sealing surface on oneside of the valve body, rotating the rotary disc by 180 degrees to fine-turn the sealing surface on the other side of the valve, grinding the sealing surface on one side of the valve, rotating the rotary disc by 180 degrees to grind the sealing surface on the other side of the valve body, drilling and cleaning. The interchangeable processing technology has the advantages of consistent wedge angles of the sealing surfaces of the shutter and the valve body, the interchangeability and the like, and is suitable for processing the wedge-shaped shutter sealing surface of a brake valve and the sealing surface of the valve body.
Description
Technical field
The present invention relates to valve field, specifically about the processing method of Gate-valve sealing pair.The present invention is applicable to the processing of gate valve flashboard sealing surface and valve body sealing surface.
Background technique
Gate valve is to be cooperatively interacted by flashboard sealing surface and valve body sealing surface to constitute sealing pair, realizes sealing function.The structural type of its sealing pair has dull and stereotyped sealing configuration, extruding/shrinking type sealing configuration and wedge-type sealing configuration.Wedge-type sealing configuration gate valve is to adopt the v-seal face of V-arrangement wedge-type flashboard and the valve body import and export passway formation sealing pair that cooperatively interacts.In wedge-type sealing configuration gate valve, the moving direction of wedge-type flashboard is vertical with flow direction, and sealing surface is easy to wear, belongs to easily damaged parts, so the interchangeable of wedge-type flashboard makes things convenient for the maintenance of gate valve or change flashboard.Realize that the interchangeable of wedge-type flashboard will be guaranteed that by the processing technology of wedge-type flashboard sealing surface and valve body sealing surface the processing technology of existing wedge-type flashboard sealing surface is: casting → both sides sealing surface build-up welding → brake plate attachment hole and circumference → go up gradient frock chuck car is washed a side sealing face → flashboard and is turned 180 ° and go up gradient frock chuck car and wash opposite side sealing surface → go up surface grinding machine gradient frock chuck and grind a side sealing face → flashboard and turn 180 ° and go up surface grinding machine gradient frock chuck grinding opposite side sealing surfaces.The valve body processing technology is: casting → both sides sealing surface build-up welding → two side flanges processing → middle flange processing → with the suction side Flange Plane be on the reference level gradient frock car to wash out oral-lateral sealing surface → with the outlet side Flange Plane be that gradient frock car is washed suction side sealing surface → grind respectively two side sealing faces → boring → cleaning on the reference level.The oblique angle of described gradient frock is 1/2 of flashboard or valve body sealing surface key groove, and to the valve of bore more than or equal to 1m, the oblique angle of its gradient frock is 3 °, and to the valve of bore less than 1m, the oblique angle of its gradient frock is 5 °.Its major defect is: the car of flashboard and valve body both sides sealing face is washed or is ground employing and finishes by twice clamping operation on same gradient frock, after namely a side sealing face car is washed or is ground, flashboard or valve body are turned 180 ° and are installed on the gradient frock car again and wash or grind the opposite side sealing surface, all there is error in each fitting operation, make the machining error of both sides sealing face inconsistent, each flashboard that processes and the sealing surface angle of wedge of valve body are also inconsistent, make flashboard and valve body sealing surface corresponding matching one by one, can not adopt the supporting use of any flashboard and valve body sealing surface, interchangeability is poor.
Summary of the invention
The objective of the invention is the shortcoming at the prior art existence, provide a kind of flashboard consistent with the valve body sealing surface machining error, each flashboard and valve body sealing surface angle of wedge high conformity, flashboard can be used with any valve body sealing surface, the interchangeable flashboard that machining accuracy height, interchangeability are good and the processing technology of valve body sealing surface.
Technological scheme of the present invention comprises the processing technology of flashboard sealing surface and valve body sealing surface, mainly is:
The processing technology of described flashboard sealing surface is: connecting rod → flashboard is installed on the horizontal frock of the special plane with fixed elevation unit head → flashboard both sides sealing face finish turning by connecting rod is installed in casting → both sides sealing surface build-up welding → brake plate attachment hole and circumference → flashboard attachment hole, flashboard both sides sealing face finish turning adopts finish turning → flashboard both sides sealing face grinding simultaneously, and flashboard both sides sealing face grinds to adopt simultaneously and grinds;
The processing technology of described valve body sealing surface is: casting → both sides sealing surface build-up welding → two side flanges processing → middle flange processing → middle flange by rotating disk, grade bar be installed on the special plane right angle anchor clamps → finish turning valve body one side sealing face → rotating disk Rotate 180 ° finish turning valve body opposite side sealing surface → valve body one side sealing face grinding → rotating disk Rotate 180 ° grinds valve body opposite side sealing surface → boring → cleaning.
Advantage of the present invention is to adopt connecting rod to be installed in the flashboard attachment hole and by connecting rod flashboard to be installed in twice technology on the horizontal frock of the special plane with fixed elevation unit head, flashboard is installed on the horizontal frock of special plane by the connecting rod that is installed in its attachment hole, both sides sealing face car and mill are finished simultaneously by special plane cutterhead and mill, draft angle between cutterhead and mill and the flashboard vertical plane immobilizes, and makes each flashboard both sides sealing mask that identical machining accuracy and the angle of wedge be arranged; Flange was installed on the special plane right angle anchor clamps by rotating disk, grade bar during valve body both sides sealing face car and grinding process adopted, and finished car and the mill of valve body both sides sealing face by 180 ° of rotary turnplate, made the machining accuracy of each valve body both sides sealing face consistent with the angle of wedge.Guarantee that each flashboard sealing surface has the identical angle of wedge with valve body sealing surface, its machining accuracy height, high conformity, flashboard are interchangeable.
Description of drawings
Fig. 1 is flashboard sealing surface car of the present invention and grinding process equipment schematic representation.
Fig. 2 is valve body sealing surface car of the present invention or grinding process equipment schematic representation.
Embodiment
The processing technology of interchangeable flashboard of the present invention and valve body sealing surface comprises the processing technology of flashboard sealing surface processing technology and valve body sealing surface.
Flashboard sealing surface processing technology is: install in casting → both sides sealing surface build-up welding → brake plate attachment hole and circumference → flashboard attachment hole connecting rod → by connecting rod flashboard is installed on the horizontal frock of the special plane with fixed elevation unit head → flashboard both sides sealing face finish turning → flashboard both sides sealing face grinds.Casting technique is cast as wedge-shaped structure with flashboard two side planes, is 3 ° to using at the angle of wedge more than or equal to flashboard one side plane of one meter bore gate valve, is 5 ° to using at the angle of wedge less than flashboard one side plane of one meter bore gate valve; Sealing surface weld deposit technology is pile-up welding hard alloy on flashboard both sides sealing face, improves the sealing surface wear-resisting property; Brake plate attachment hole and circumference technology are the attachment hole of brake plate and valve rod and the plane of circumferential surface and valve rod joint; It is that a connecting rod 8 is installed in the attachment hole of flashboard and valve rod that connecting rod technology is installed in the flashboard attachment hole, and this connecting rod 8 is fixedly installed in flashboard 7 on the horizontal frock 4 of special plane; Flashboard both sides sealing face finish turning and abrasive process adopt flashboard both sides sealing face finish turning and grinding simultaneously, namely in horizontal frock 4 bilateral symmetry of special plane the unit head 5 with fixed elevation is installed, unit head 5 is installed on the worktable 1 by gradient piece 3, when processing during more than or equal to the flashboard of one meter bore gate valve, angle between gradient piece 3 and the horizontal plane is 3 °, when processing during less than the flashboard of one meter bore gate valve, angle between gradient piece 3 and the horizontal plane is 5 °, unit head 5 in flashboard 7 both sides is installed cutterhead 6, and finish turning is implemented in flashboard 7 both sides; When flashboard 7 both sides are ground cutterhead 6 is changed to mill, is provided with limit switch 2 in horizontal frock 4, the mobile position of restricted power 5 on worktable 1, as shown in Figure 1.Unit head 5 is installed on the worktable 1 by gradient piece 3, makes cutterhead 6 or mill have fixing oblique angle, and the machining accuracy of each flashboard 7 sealing surface is consistent with key groove, and having can be mutually transsexual.
The processing technology of valve body sealing surface is: casting → both sides sealing surface build-up welding → two side flanges processing → middle flange processing → middle flange by rotating disk, grade bar be installed on the special plane right angle anchor clamps → finish turning valve body one side sealing face → rotating disk Rotate 180 ° finish turning valve body opposite side sealing surface → valve body one side sealing face grinding → rotating disk Rotate 180 ° grinds valve body opposite side sealing surface → boring → cleaning.Casting technique is cast as wedge-shaped structure with valve body sealing surface, is 3 ° to the angle of wedge more than or equal to the valve body one side sealing face of one meter bore, is 5 ° to the angle of wedge less than one meter bore valve body one side sealing face; Sealing surface weld deposit technology is pile-up welding hard alloy on valve body both sides sealing face, improves the sealing surface wear-resisting property; As shown in Figure 2, middle flange is by rotating disk 6, grade bar 3 is installed on the special plane right angle anchor clamps 5, the draft angle of grade bar 3 equates with the angle of wedge of valve body 2 sealing surfaces, between the middle flange of valve body 2 and the rotating disk 6 pressing plate 4 is housed, rotating disk 6 can 180 ° rotates and is fixed on grade bar 3, right angle anchor clamps 5 are fixedly mounted on the support 1 of special plane, the axis of cutter 7 is vertical with valve body 2 sealing surfaces, by to rotating disk 6 Rotate 180s °, realization is to the car of valve body 2 both sides sealing faces, mill, highly keep the sealing surface machining accuracy of different valve bodies 2 and the conformity of the angle of wedge, valve body 2 can be exchanged with the different flashboards 7 with identical key groove be used.
Claims (1)
1. the processing technology of an interchangeable flashboard and valve body sealing surface comprises it is characterized in that the processing technology of flashboard sealing surface and valve body sealing surface:
The processing technology of described flashboard sealing surface is: connecting rod → flashboard is installed on the horizontal frock of the special plane with fixed elevation unit head → flashboard both sides sealing face finish turning by connecting rod is installed in casting → both sides sealing surface build-up welding → brake plate attachment hole and circumference → flashboard attachment hole, flashboard both sides sealing face finish turning adopts finish turning → flashboard both sides sealing face grinding simultaneously, and flashboard both sides sealing face grinds to adopt simultaneously and grinds;
The processing technology of described valve body sealing surface is: casting → both sides sealing surface build-up welding → two side flanges processing → middle flange processing → middle flange by rotating disk, grade bar be installed on the special plane right angle anchor clamps → finish turning valve body one side sealing face → rotating disk Rotate 180 ° finish turning valve body opposite side sealing surface → valve body one side sealing face grinding → rotating disk Rotate 180 ° grinds valve body opposite side sealing surface → boring → cleaning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110346152 CN102506188B (en) | 2011-11-01 | 2011-11-01 | Interchangeable processing technology for sealing surfaces of shutter and valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110346152 CN102506188B (en) | 2011-11-01 | 2011-11-01 | Interchangeable processing technology for sealing surfaces of shutter and valve body |
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| Publication Number | Publication Date |
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| CN102506188A CN102506188A (en) | 2012-06-20 |
| CN102506188B true CN102506188B (en) | 2013-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110346152 Active CN102506188B (en) | 2011-11-01 | 2011-11-01 | Interchangeable processing technology for sealing surfaces of shutter and valve body |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551875A (en) * | 2013-10-25 | 2014-02-05 | 李立群 | Valve body seal ring machining device |
| CN105598644B (en) * | 2016-01-21 | 2017-09-19 | 永嘉县恒正阀门有限公司 | Wedge Gate Valves sealing surface processing technology and its automatic bead welding equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4081891A (en) * | 1975-12-24 | 1978-04-04 | Acf Industries, Incorporated | Method of making a valve |
| RU2016326C1 (en) * | 1991-06-27 | 1994-07-15 | Товарищество с ограниченной ответственностью - Фирма "Челнок" | Method of wedge type slide valve production |
| CN2293685Y (en) * | 1997-01-24 | 1998-10-07 | 吕凡 | Interchanging apparatus for universal equipment processing valve body and valve plate |
| CN102151871A (en) * | 2010-02-11 | 2011-08-17 | 上海茂德企业集团有限公司 | Method for processing interchangeable valve body and gate of gate valve and special-purpose machine tool |
| CN102168765A (en) * | 2011-04-28 | 2011-08-31 | 浙江丰业集团温州高中压阀门厂 | Double gate disc of one-way static sealing parallel inclined plane and processing technology thereof |
-
2011
- 2011-11-01 CN CN 201110346152 patent/CN102506188B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4081891A (en) * | 1975-12-24 | 1978-04-04 | Acf Industries, Incorporated | Method of making a valve |
| RU2016326C1 (en) * | 1991-06-27 | 1994-07-15 | Товарищество с ограниченной ответственностью - Фирма "Челнок" | Method of wedge type slide valve production |
| CN2293685Y (en) * | 1997-01-24 | 1998-10-07 | 吕凡 | Interchanging apparatus for universal equipment processing valve body and valve plate |
| CN102151871A (en) * | 2010-02-11 | 2011-08-17 | 上海茂德企业集团有限公司 | Method for processing interchangeable valve body and gate of gate valve and special-purpose machine tool |
| CN102168765A (en) * | 2011-04-28 | 2011-08-31 | 浙江丰业集团温州高中压阀门厂 | Double gate disc of one-way static sealing parallel inclined plane and processing technology thereof |
Non-Patent Citations (1)
| Title |
|---|
| 沈阳高中压阀门厂.阀门制造工艺.《阀门制造工艺》.机械工业出版社,1984,第48-49、173-174、342-344页. * |
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| CN102506188A (en) | 2012-06-20 |
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Effective date of registration: 20160419 Address after: 323000 Zhejiang Province, Lishui City Park Industrial Zone Patentee after: ASME VALVE CO., LTD. Address before: 325102 Zhejiang province Yongjia County Oubei town Dong'ou Industrial Zone (Rover Group) Patentee before: Ge Junjie |