CN108381451A - A kind of installation tool and its installation method of valve rod sealing member - Google Patents
A kind of installation tool and its installation method of valve rod sealing member Download PDFInfo
- Publication number
- CN108381451A CN108381451A CN201810367447.0A CN201810367447A CN108381451A CN 108381451 A CN108381451 A CN 108381451A CN 201810367447 A CN201810367447 A CN 201810367447A CN 108381451 A CN108381451 A CN 108381451A
- Authority
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- China
- Prior art keywords
- valve
- valve rod
- lippacking
- installation
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009434 installation Methods 0.000 title claims abstract description 45
- 238000007789 sealing Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000012856 packing Methods 0.000 claims description 16
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 2
- 210000004907 gland Anatomy 0.000 description 16
- 238000010586 diagram Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 238000005034 decoration Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/0028—Tools for removing or installing seals
Abstract
The invention discloses a kind of installation tool of valve rod sealing member and its installation methods, wherein installation tool includes tool body and push rod, tool body lower part has the external screw thread conical surface, it is equipped with the first through hole at tool body center, push rod can be equipped with abutting part along one end of the first through hole to other end slide push rod lower end, the outer diameter of the abutting part is less than the aperture of gas-tight silo, and the aperture of the second through hole is more than the outer diameter of valve rod.Installation method includes that tool body is tightened on valve bonnet seal storehouse, valve rod is penetrated and positioned from the bottom of valve deck, lippacking, gasket seal are sleeved on valve rod, and by pushing rod sleeve on valve rod and the step of pushing gasket seal and lippacking along valve rod.The present invention is while realizing Fast Installation valve rod sealing member, the uncontrollable present situation of conventional seals quality is thoroughly improved, it is changed into uncontrollable controllably on installation quality, substantially increases the installation quality of lippacking, the detection for reducing the valve later stage dismounts risk.
Description
Technical field
The present invention relates to installation tool and its installations of valve rod sealing member assembly field more particularly to a kind of valve rod sealing member
Method.
Background technology
In the valve field of API6A, the sealing between valve rod and valve deck is realized by sealing element, the sealing element
Including lippacking and gasket seal, the height that 15000Psi is born between valve rod and valve deck can be made by the sealing of sealing element
Pressure.The sealing member material between valve rod and valve deck has been changed to GTFE from original rubber (polytetrafluoroethylene (PTFE) adds a certain amount of at present
Glass fibre), in appearance structure design, be changed to lip from V-arrangement.From the material hardness used, rubber seal
Shore hardness HS75, lippacking HD58.8.From the point of view of hardness number, the material hardness of lippacking will be far longer than rubber
Sealing element is configured with a metal spring in vivo in lippacking, can increase lippacking non-deformability, referring to
Fig. 1 to 2.The roads You Ji lips and teeth are distinguished in the outer rim of lippacking and inner edge.From the point of view of the section of lippacking, lips and teeth are not
It is very sharp, there is certain radian, the presence of lips and teeth can improve the low pressure seal ability and high pressure sealing performance of sealing element
And improve the reliability of sealing.
When installing lippacking, it is necessary to assure lips and teeth it is intact, cannot have any defective mounting, otherwise can make valve body
Sealing between valve deck is unreliable, and valve is caused to leak at work.Once leaking, it will calamitous damage occurs
It loses, so therefore, to seem on the technique study of installation sealing element particularly carefully with carefully on installation lippacking
It is particularly important.
In addition to this, for the professional factory for manufacturing valve to one, there are many valve that need to be assembled daily, need to assemble
Valve is generally placed on the assembly line of conveyer belt, has many installation stations, Mei Gegong on the assembly line of entire conveyer belt
Position tool is assembled there are one assembly crewman, and conveyer belt is automatic step movement, can be controlled by people, be asked if encountering installation
Inscribing needs processing can be by entire conveyer belt stop motion.Installation sealing element has rate request, needs in given time
Installation is completed, if do not finished in given time, the process circulation that will result in installation lippacking is complete to next station
At can thus upset the installation sequencing of entire assembly line.In order to solve this problem, entire conveyer belt will be stopped
Come, this means that the assembly of valve cannot be normally carried out, and can also influence valve assembly yield and efficiency of assembling.
As shown in figure 3, according to design requirement, lippacking is mounted in valve bonnet seal storehouse, in valve bonnet seal storehouse
There is screw thread, the external screw thread of the screw thread and packing gland to match on top, and in the centre of valve deck, there are one apertures, can pass through valve
Bar is mounted on packing gland on valve deck by drawing, under force, lippacking end plane and packing gland
Lower end plane will fit together, and at this moment packing gland just plays the role of thrust lippacking.
It is at present any tool not used when installing lippacking, is that armrest and packing gland are installed,
As shown in figure 4, lippacking to be placed on to the gas-tight silo aperture end of valve deck first, packing gland is screwed on, packing gland leans on spiral shell
The effect of line slowly compresses lippacking, and since there is the oblique angle of certain angle in the aperture of gas-tight silo, lippacking is at oblique angle
Under the action of towards hole contract, shunk in movement, until packing gland is screwed into bottom, such lippacking is tentatively in place.
Then, valve rod is inserted into from the bottom of valve deck, and passes through lippacking.Then, packing gland is removed, gasket seal is sleeved on
On valve rod, gasket seal is made to be slid along valve rod, be bonded with the upper end of lippacking, packing gland is installed again, directly
It is screwed into bottom to packing gland, such lippacking is just installed in place.The principle of above-mentioned installation method is：Utilize valve bonnet seal
The oblique angle of storehouse orifice part and the flexible deformation of lippacking, under the pressure that packing gland provides, lippacking pressure
Enter in valve bonnet seal storehouse, this installation method is simple, but needs to use point power when installing valve rod, can just valve rod be made to pass through
Lippacking.The above method has the following problems：
1, due to being that directly lippacking is pressed into valve bonnet seal storehouse when installing lippacking, in lip packing
It is not no valve rod in the endoporus of part, the Internal Hole Deformation amount of lippacking can thus increases with interference volume, in valve rod
There are one apertures in the outer rim of end.If orifice chamfer is dealt with improperly, when passing through sealing element, will cut off in lippacking
It is imperfect to will result in lippacking lips and teeth in this way for hole lips and teeth.
2, during the entire process of lippacking is installed, installation quality can not management and control, because of lippacking
Being placed on the conical surface of gas-tight silo end must be horizontally arranged, any to shake the position that all influence lippacking, once position
It sets partially, extrusion damage will occur, referring to Figure of description Fig. 5.
3, after valve installs, entire valve finally needs pressure detecting, if the installation due to lippacking causes
Leakage it is necessary to which entire valve is removed, need to reinstall lippacking, be possible to damage during dismounting
Other parts increase dismounting risk.
Invention content
In order to overcome the problems referred above, an object of the present invention is to provide a kind of valve rod sealing member installation tool, can be
Holding is easily installed during the entire process of installing sealing element, avoids the damage of lippacking, valve is not interfered with using the tool
The continuity of door assembly, helps to improve efficiency of assembling.
The second object of the present invention is to provide the installation method of valve rod sealing member, existing installation method is solved easily to sealing element
It damages, the problem of quality can not ensure.
The technical solution adopted by the present invention to solve the technical problems is：A kind of valve rod sealing member installation tool, being used for will
Lippacking, gasket seal are installed to the designated position in valve bonnet seal storehouse comprising tool body and push rod.
Wherein, tool body lower part has the external screw thread conical surface compatible with the valve bonnet seal storehouse internal thread conical surface, in tool body
Center is equipped with the first through hole for disposing push rod, and first through hole is a taper hole, in the shape that top is big, lower part is small
Shape, the minimum-value aperture of the taper hole are identical as the aperture of gas-tight silo.
The push rod can be slided along one end of the first through hole to the other end, have second for entangling valve rod to pass through
Through-hole, the push rod lower end are equipped with the abutting part for lippacking, gasket seal to be pushed into valve bonnet seal storehouse designated position,
The outer diameter of the abutting part is less than the aperture of gas-tight silo, and the aperture of the second through hole is more than the outer diameter of valve rod.
Further, a positioning step surface is additionally provided on the outer rim peripheral wall of push rod, which exists for controlling push rod
Movement travel in tool body.
Further, push rod, tool body, lippacking, gasket seal, valve rod arranged concentric.
As another theme of the present invention, a kind of installation method of valve rod sealing member uses installation tool above-mentioned, packet
Include following steps：
1) tool body is tightened on the internal thread conical surface on valve bonnet seal storehouse top.
2) valve rod is penetrated and is positioned from the bottom of valve deck, then bonnet flange is face-down.
3) lippacking is sleeved on valve rod, then gasket seal is also mounted on lippacking and is inserted in together.
4) gasket seal and lippacking are pushed by pushing rod sleeve on valve rod and along valve rod so that sealing element moves to
The designated position in valve bonnet seal storehouse.
The present invention operation principle be：It is tightened on using tool extracorporeal thread on the internal thread on valve bonnet seal storehouse top, work
Specific lower part male cone (strobilus masculinus) is mutually adapted with gas-tight silo aperture inner conical surface.First through hole of tool body is a transition tapered hole, most
Small-bore is identical as the aperture of gas-tight silo, thus cans be compared to gas-tight silo extending to outside, form the sealing of a lengthening
Hole, entire sealing hole are smooth, and step is not present in junction.Since the first through hole of tool body is a taper hole, top
Greatly, lower part is small, contributes to the insertion of lippacking in this way, which can ensure that the outer margin deformation of lippacking is uniform
, and can ensure that outer rim lips and teeth will not damage.
In addition, valve rod has been installed in place 4 benefits before installing lippacking：1) when installing lippacking,
It is to be inserted into valve rod in the endoporus of lippacking first, due to being not subject to any external force in the outer rim of lippacking,
Interference volume very little in this way between the endoporus and valve rod of lippacking.When valve rod passes through lippacking, valve rod will not be right
The endoporus lips and teeth of lippacking damage.2) valve rod anchor point, the presence of valve rod can will not make lip close centered on
Sealing upper plane tilts, on the horizontal plane that can make lippacking holding.3) push rod can be fixed centered on valve rod
Site can push lippacking towards moving in valve bonnet seal storehouse, until the positioning table terrace and valve deck of push rod along valve rod
Upper end contacts, and can not only ensure lippacking in this way in the position in valve bonnet seal storehouse, but also can ensure in installation lip
When sealing element, the bottom of lippacking will not hit the bottom plane of valve deck gas-tight silo.4) lippacking and gasket seal
It can disposably be packed into valve bonnet seal storehouse, not have to secondary installing packing gland, can save the set-up time.
Compared with prior art, the present invention the advantage is that：
The present invention is thorough by the uncontrollable present situation of conventional seals quality while realizing Fast Installation valve rod sealing member
Improved, is changed into uncontrollable controllably on installation quality, substantially increases the installation quality of lippacking, reduce
The detection in valve later stage dismounts risk.In addition, the present invention keeps easily installing during the entire process of installing sealing element, lip is avoided
The damage of shape sealing element substantially increases the continuity and efficiency of assembling of valve assembly.
Below with reference to drawings and examples, the present invention is described in detail.
Description of the drawings
Fig. 1 is the cooperation schematic diagram of valve rod, sealing element and valve deck.
Fig. 2 is the sectional view of lippacking.
Fig. 3 is the cooperation schematic diagram of valve rod, lippacking and valve bonnet seal storehouse.
Fig. 4 is the cooperation schematic diagram of lippacking and dish type gland.
Fig. 5 is the cooperation schematic diagram with dish type gland when lippacking slant setting.
Fig. 6 is the structural schematic diagram of the present invention.
Fig. 7 is the reference chart that the present invention is located at initial position in placement sealing element rear push-rod.
Fig. 8 is the reference chart that the present invention is located at final position in placement sealing element rear push-rod.
In figure, 1, valve rod, 2, valve deck, 3, packing gland, 4, lippacking, 5, gasket seal, 6, lips and teeth, 7, metal elastic
Spring, 8, the internal thread conical surface, 10, tool body, 11, push rod, 12, the external screw thread conical surface, the 13, first through hole, 14, gas-tight silo, 15,
Two through holes, 16, abutting part, 17, positioning table terrace.
Specific implementation mode
Embodiment,
Please refer to Fig. 6 to 8, a kind of valve rod sealing member installation tool, for lippacking 4, gasket seal 5 to be installed to
The designated position in valve bonnet seal storehouse 14 comprising tool body 10 and push rod 11.
Wherein, 10 lower part of tool body has the external screw thread conical surface 12 compatible with the 14 internal thread conical surface 8 of valve bonnet seal storehouse,
10 center of tool body is equipped with the first through hole 13 for disposing push rod 11, which is a taper hole, is in top
Greatly, the minimum-value aperture of the small shape in lower part, the taper hole is identical as the aperture of gas-tight silo 14.
Push rod 11 can be slided along one end of the first through hole 13 to the other end, have second for entangling valve rod 1
Through hole 15,11 lower end of the push rod are equipped with for lippacking 4, gasket seal 5 to be pushed into valve bonnet seal storehouse designated position
Abutting part 16, the outer diameter of the abutting part 16 is less than the aperture of gas-tight silo 14, and the aperture of the second through hole 15 is more than valve rod 1
Outer diameter.A positioning step surface 17 is additionally provided on the outer rim peripheral wall of push rod 11.Above-mentioned push rod 1, tool body 10, lippacking
4, gasket seal 5,1 arranged concentric of valve rod.
A kind of installation method of valve rod sealing member, uses aforementioned installation tool comprising following steps：
1) tool body 10 is tightened on the internal thread conical surface on 14 top of valve bonnet seal storehouse；
2) valve rod 1 is penetrated and is positioned from the bottom of valve deck 2, then 2 flange of valve deck is face-down；
3) lippacking 4 is sleeved on valve rod 1, then gasket seal 5 is also mounted on lippacking 4 and is covered together
Enter；
4) push rod 11 is sleeved on valve rod 1 and pushes gasket seal 5 and lippacking 4 along valve rod 1 so that sealing element
4 move to the designated position in valve bonnet seal storehouse, and installation is complete.
The above is only the preferred embodiment to invention, is not defined to the range of invention, therefore is not departing from this
Under the premise of invention design spirit, those of ordinary skill in the art to structure, feature and principle of the present invention done etc.
Effect variation or decoration, should all fall within the scope of protection of the present invention.
Claims (4)
1. a kind of installation tool of valve rod sealing member, the finger for lippacking, gasket seal to be installed to valve bonnet seal storehouse
Positioning is set；It is characterized in that：Including tool body and push rod, the tool body lower part has and valve bonnet seal storehouse internal thread conical surface phase
The external screw thread conical surface of adaptation is equipped with the first through hole for disposing push rod at tool body center, and first through hole is one
Taper hole, in the shape that top is big, lower part is small, the minimum-value aperture of the taper hole is identical as the aperture of gas-tight silo；
The push rod can be slided along one end of the first through hole to the other end, have the second perforation for entangling valve rod
Hole, the push rod lower end are equipped with the abutting part for lippacking, gasket seal to be pushed into valve bonnet seal storehouse designated position, should
The outer diameter of abutting part is less than the aperture of gas-tight silo, and the aperture of the second through hole is more than the outer diameter of valve rod.
2. the installation tool of valve rod sealing member as described in claim 1, it is characterised in that：It is also set on the outer rim peripheral wall of the push rod
There is a positioning step surface.
3. the installation tool of valve rod sealing member as described in claim 1, it is characterised in that：The push rod, tool body, lip packing
Part, gasket seal, valve rod arranged concentric.
4. a kind of installation method of valve rod sealing member, uses the installation tool of any one of such as claims 1 to 3, which is characterized in that
Include the following steps：
1) tool body is tightened on the internal thread conical surface on valve bonnet seal storehouse top；
2) valve rod is penetrated and is positioned from the bottom of valve deck, then bonnet flange is face-down；
3) lippacking is sleeved on valve rod, then gasket seal is also mounted on lippacking and is inserted in together；
4) gasket seal and lippacking are pushed by pushing rod sleeve on valve rod and along valve rod so that sealing element moves to valve deck
The designated position of gas-tight silo, installation is complete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810367447.0A CN108381451A (en) | 2018-04-23 | 2018-04-23 | A kind of installation tool and its installation method of valve rod sealing member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810367447.0A CN108381451A (en) | 2018-04-23 | 2018-04-23 | A kind of installation tool and its installation method of valve rod sealing member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108381451A true CN108381451A (en) | 2018-08-10 |
Family
ID=63065270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810367447.0A Pending CN108381451A (en) | 2018-04-23 | 2018-04-23 | A kind of installation tool and its installation method of valve rod sealing member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108381451A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1450004A1 (en) * | 1987-01-04 | 1989-01-07 | Предприятие П/Я А-1920 | Apparatus for setting sealing gasket into case of permanent capacitor |
| JP2008232409A (en) * | 2007-03-23 | 2008-10-02 | Akebono Brake Ind Co Ltd | Seal ring mounting method |
| CN201672123U (en) * | 2010-05-07 | 2010-12-15 | 常州市汇丰船舶附件制造有限公司 | High-pressure cut-off valve |
| CN203600183U (en) * | 2013-11-27 | 2014-05-21 | 中国南方航空工业(集团)有限公司 | Retainer ring assembly tool for retainer ring screw |
| CN203765557U (en) * | 2014-03-19 | 2014-08-13 | 王英姿 | Tool for pressing sealing ring |
| CN203818039U (en) * | 2014-05-14 | 2014-09-10 | 东风汽车零部件(集团)有限公司 | Multiple-component assembly fixture |
| US20150267815A1 (en) * | 2014-03-19 | 2015-09-24 | Deere & Company | Seal installation guide sleeve |
| CN104999417A (en) * | 2015-08-19 | 2015-10-28 | 国家电网公司 | Crank arm box seal ring assembly clamp |
| CN205218998U (en) * | 2015-12-30 | 2016-05-11 | 百威英博雪津啤酒有限公司 | Vacuum decompression valve stem gasket mounting tool |
| CN107443299A (en) * | 2017-08-31 | 2017-12-08 | 简式国际汽车设计（北京）有限公司 | A kind of O-ring assembly tool |
| CN208132833U (en) * | 2018-04-23 | 2018-11-23 | 苏州优力克流体控制科技有限公司 | A kind of installation tool of valve rod sealing member |
-
2018
- 2018-04-23 CN CN201810367447.0A patent/CN108381451A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1450004A1 (en) * | 1987-01-04 | 1989-01-07 | Предприятие П/Я А-1920 | Apparatus for setting sealing gasket into case of permanent capacitor |
| JP2008232409A (en) * | 2007-03-23 | 2008-10-02 | Akebono Brake Ind Co Ltd | Seal ring mounting method |
| CN201672123U (en) * | 2010-05-07 | 2010-12-15 | 常州市汇丰船舶附件制造有限公司 | High-pressure cut-off valve |
| CN203600183U (en) * | 2013-11-27 | 2014-05-21 | 中国南方航空工业(集团)有限公司 | Retainer ring assembly tool for retainer ring screw |
| CN203765557U (en) * | 2014-03-19 | 2014-08-13 | 王英姿 | Tool for pressing sealing ring |
| US20150267815A1 (en) * | 2014-03-19 | 2015-09-24 | Deere & Company | Seal installation guide sleeve |
| CN203818039U (en) * | 2014-05-14 | 2014-09-10 | 东风汽车零部件(集团)有限公司 | Multiple-component assembly fixture |
| CN104999417A (en) * | 2015-08-19 | 2015-10-28 | 国家电网公司 | Crank arm box seal ring assembly clamp |
| CN205218998U (en) * | 2015-12-30 | 2016-05-11 | 百威英博雪津啤酒有限公司 | Vacuum decompression valve stem gasket mounting tool |
| CN107443299A (en) * | 2017-08-31 | 2017-12-08 | 简式国际汽车设计（北京）有限公司 | A kind of O-ring assembly tool |
| CN208132833U (en) * | 2018-04-23 | 2018-11-23 | 苏州优力克流体控制科技有限公司 | A kind of installation tool of valve rod sealing member |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180810 |
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| RJ01 | Rejection of invention patent application after publication |