CN1046380A - Be used to prolong the method that two valves that operate a switch improve its reliability working life - Google Patents
Be used to prolong the method that two valves that operate a switch improve its reliability working life Download PDFInfo
- Publication number
- CN1046380A CN1046380A CN 89102165 CN89102165A CN1046380A CN 1046380 A CN1046380 A CN 1046380A CN 89102165 CN89102165 CN 89102165 CN 89102165 A CN89102165 A CN 89102165A CN 1046380 A CN1046380 A CN 1046380A
- Authority
- CN
- China
- Prior art keywords
- screw rod
- gate valve
- antiswing
- valves
- sway
- 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
Images
Landscapes
- Sliding Valves (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
Be used for prolonging two valve working lifes of operating a switch, improve the method for its reliability, and this method design of reference, can be installed on existing two valves that operate a switch, and a kind of device that can make separately, this device is by anti-sway block, and fastener assembly has simple in structure, cheap, characteristics easy to use can improve the life-span and the reliability of two valves that operate a switch, and can give treatment to the two valves that operate a switch that generally are tending towards locking.Is only extended screw rod and gate valve rib length and the characteristics of foregoing invention are given full play to a little processing of rib with foregoing invention to the transformation of the existing two valves that operate a switch.
Description
Present disclosure explanation be based on three inventions that prolong two plate gate valve working lifes and improve its reliability, they are (one) about the invention (two) of method about the invention (three) of device about the transformation to existing two plate gate valves.
In industrial production, civilian heating, using two plate gate valves in the systems such as water supply in a large number, but the switch motion of gate valve is to rely on screw rod end square toes to be stuck among the flashboard of two opening and closing, fixed by a wire clamp, by being connected with handwheel, and the swivel nut that matches with screw rod rotates, and finishes under screw rod being moved up and down drive.Because its flashboard can opening and closing, the amplitude so the square toes that have rotary oscillation so the screw rod square toes can not be completely fixed with gate valve very easily wear and tear, and not long to the working life that makes gate valve, reliability is very poor, and maintain and replace is frequent.
Because two plate gate valves work in the bigger main line pipeline of diameter mostly; once the malfunctioning economic cost that not only increases the maintain and replace gate valve of gate valve; and can cause larger area to cut off the water, and give industrial production, civilian installation brings the trivial loss of bigger chain then more needless to say to say.
The wear process of analyzing two plate gate valves has two kinds of situations; One, the gate valve of frequent switch, two, be installed in underground or the gate valve of being failure to actuate for a long time.
The situation of one is; Handwheel drives the swivel nut rotation when the rotation handwheel opens or closes, because the helical pitch of its screw thread is added the swivel nut of other factors influence and the friction of screw rod more greatly, has caused the rotating force that puts on screw rod bigger.Just be worn service time four jiaos of one long bolt end square toes, the amplitude that causes screw rod to follow the switch motion rotary oscillation strengthens, and, also make the square toes part of wearing and tearing that flashboard has been applied a bigger outside support power simultaneously along with the speed of wearing and tearing has further been quickened in the increasing of amplitude of fluctuation.Gently then make gate valve open and close difficulty, heavy then flashboard can't be mentioned at all.
More serious for its situation of two, owing to be failure to actuate for a long time, lubricating grease dries up or corrosion occurs.Screw rod and swivel nut become and locking, must use bigger box spanner or extension lever must move by switch.The rotating force of switch motion this moment almost all passes to the screw rod square toes, and square toes will gross distortion or wearing and tearing.The result gently then makes the gate valve life-span shorten rapidly, and the reliability variation is heavy then gate valve is once scrapped.
One) about the invention of method
The purpose of this invention is to provide a kind of method, in order to prolonging the working life of two plate gate valves, and improve the reliability of its work.
By above-mentioned wear process analysis, the key that as seen prolongs the gate valve life-span and improve its reliability is to prevent the screw rod rotary oscillation.
The method that the present invention will illustrate is: the dress system is parallel to the guide groove or the guide rail of screw rod on gate valve, and make it corresponding with the exsertion part of screw rod more than differential, can be stuck in guide groove or guide rail and can prolong guide rail or the rigidity structure of guide groove slip by one, screw rod and brake valve body are linked, making screw rod can only prolong its axle does and vertically moves and can not rotary oscillation, specifically, when guide-track groove is formed on screw rod, said rigidity structure, be anchored on the close swivel nut place of gate valve lid, when guide rail or guide groove placed the gate valve lid, said rigidity structure was anchored on the close differential place of screw rod.At this moment, the moving rotating force of doing screw rod of gate valve switch will pass to brake valve body by the rigidity structure, adopt such method can prevent of the transmission of the rotating force of switch motion to screw rod square toes and flashboard, eliminated of the destruction of switch rotating force to screw rod square toes and flashboard, thereby gate valve work is more rationally reliably reached prolong gate valve working life, improve the purpose of reliability.
The present invention also has following advantage in addition:
1, need not existing gate valve is done the working life that big improvement just can prolong gate valve significantly, improve its reliability.
2, for making the various prolongation gate valve life-spans, the device that improves its reliability provides principle and approach.
3, for the transformation that has gate valve now provides approach.
(2) about device
The objective of the invention is to make and a kind ofly can be applicable to existing two plate gate valves and need not existing gate valve is transformed, and the cheap antiswing device that prevents gate valve screw rod rotary oscillation simple in structure, in order to prolong the working life of two plate gate valves, treatment generally is tending towards reporting dead two plate gate valves, and improves the functional reliability of two plate gate valves.
Principle of the present invention is above-mentioned invention about method.
Look into and to see by sight, generally all there are symmetry and be used to parallel to support the supporting rib of swivel nut and handwheel on two plate gate valve lids with screw rod, if there is one to be fixed in screw rod, subsides are stuck in rib and are guide rail by means of rib, drive the rigidity structure that the lower edge rib slides up and down at screw rod, just can reach and do not change existing two plate gate valve structures, prevent the screw rod rotary oscillation, thereby prolong the gate valve life-span, improve the purpose of reliability.And can be applied to be installed in the gate valve that is tending towards locking in the various system pipelines.
The said device of the present invention is made up of anti-sway block (1) and fastening piece (6) (7).(referring to accompanying drawing one)
Anti-sway block is a core of the present invention, is the supporting mass that passes to rib in order to the rotating force with switch motion, and its material should have certain intensity.Have on it in groove (2) groove that matches with screw rod tooth engaged (3) is arranged, have in the both sides of groove, be provided with a top wire hole (5) in the center of groove (2) for the hole (4) that fastening screw is installed.
Fastening piece comprises fastener bolt (6) and silk top (7), and the clamping bolts that are used for two retaining end types (referring to following) are one to be bent into the threaded lead screw in two ends of " U " type and to be equipped with earthquake washer and the HEX HEAD CAP SCREWS mother.The clamping bolt that is used for fourth gear end type (referring to following) has selective need not of standard piece to illustrate, but also should be equipped with earthquake washer.Jackscrew (7) is that an end car becomes tapered HEX HEAD CAP SCREWS.
The present invention can adorn the two retaining end types (8) of making and four retaining end types (9).The characteristics of two retaining end types are only with an anti-sway block, are anchored on screw rod by U type clamping bolt.So cost is low, it is also convenient to use, and one end is stressed during because of work, so screw rod is subjected to force unbalance, but still can satisfy general the use.Four retaining end type characteristics are to use two anti-sway blocks, by two clamping bolts two anti-sway blocks are anchored on the gate valve screw rod relatively, and the two ends symmetry is stressed during work, and gate valve screw rod stress balance can support big moment.
Using method of the present invention is: the burr that at first should remove gate valve rib sidewall.When be used to open anti-sway at need block be anchored on screw rod near filler differential place, be used to close the close swivel nut place that is anchored on the gate valve screw rod at need.As desire the permanent close filler differential place that more anti-sway block is anchored on the gate valve screw rod after the cinched position that at first gate valve is in when anti-sway block is installed.
The present invention can satisfy general traffic requirement when being installed on the bigger gate valve of diameter for a long time.Because antiswing device need take the switching path (approximately about 2CM) of certain-length when being used for the less gate valve of diameter, should consider the influence of the shared stroke of antiswing device, needs inadequately device is moved down once as stroke.The general gate valve that only is applied to the switch difficulty when on the less gate valve of diameter, using or is tending towards locking.
Advantage of the present invention
1. simple in structure, cheap, easy to operate.
2. the optimization for existing two plate gate valves is provided by the condition that provides
3. can make separately and need not existing gate valve is done transformation
(3) about transformation to existing two plate gate valves.
Existing common double plate gate valve, though can reach gate valve and prolong the purpose of searching and improving reliability, satisfy general traffic requirement, as also need antiswing device is moved once flow all will be opened foot the time by the configuration antiswing device, in this case, often switch will be very inconvenient
The objective of the invention is to transform existing two plate gate valve, and the configuration antiswing device, produce a kind of long lifetime, two plate gate valves of high reliability.
Principle of the present invention is above-mentioned invention and the invention about installing about method.
The transformation to existing two plate gate valves that illustrates is the rib on the two plate gate valve lids of lengthening and the length of screw rod, and the length of screw rod spiral shell button is constant, and antiswing device can be installed in the no button position that screw rod is exposed.And can make antiswing device, the shift motion under screw rod drives reaches the gate valve nominal value.Processing rib sidewall and antiswing device surface of contact require that certain degree of finish is arranged, with respect to the parallelism and the concentricity of screw rod.
Need the transformation of explanation to have the antiswing device that two plate gate valves will dispose now, it promptly can be above-mentioned invention about device, it also can be the set type antiswing device (referring to figure two) that is exclusively used in improved pair of plate gate valve, this set type antiswing device is about the anti-sway block in the device invention with above-mentioned, two shape manufacturings that merge into a single whole relatively, cancelled fastening nut, in the hole of matching with the gate valve screw rod in the center of this set type antiswing device (10), be processed with one or several keys groove (11), the corresponding site of screw rod also is processed with keyway, the installation method of set type antiswing device is to be placed on filler differential upper end, when the gate valve lid is installed screw rod, the set type antiswing device is set in screw rod, the dependence key is fastening, and jackscrew is positioned the relevant position of screw rod.
Advantage of the present invention is:
1, increase substantially the life cycle and the reliability of two plate gate valves, thereby improved industry, the stability of system such as civilian has improved economic benefit.
2, improve being easy to realize.
3, brought bigger convenience to the user.
The claimant thinks the best way that realizes foregoing invention
Realization is above-mentioned about device with about the invention to the transformation of existing two plate gate valves about the best way of the invention of method.
Realization is about the invention to the transformation of existing two plate gate valves about the best way of invention of device.
Realization about the best way to the transformation of existing two plate gate valves is, gate valve manufactory transforms two plate gate valves, this is because the transformation of said pair of plate gate valve, the operation that has in fact only increased the installation antiswing device for gate valve manufactory is with the operation of processing gate valve rib sidewall, if casting accuracy is higher even with processing rib sidewall.
Gate valve through transforming is with preferably consistent or compatible mutually without their used antiswing devices of same model gate valve of transforming, in order to the kind that reduces antiswing device.
Antiswing device does not have specific (special) requirements, and common medium or small factory need not increase equipment or only need acquire small number of devices and just can process and manufacture.The block material can be a cast steel, common carbon steel, even can use made such as glass fibre reinforced plastics, reinforced plastic in some occasion.Also can bend as figure three with steel plate.
If gate valve manufactory transforms existing two plate gate valves and supporting manufacturing antiswing device will more can guarantee precision.
When using jackscrew, the gate valve screw rod should be aimed at the top wire hole place and bore a pit, can increase anti-sway ability.
Description of drawings: figure one, antiswing device.
Figure two, the set type antiswing device.
Figure three, the antiswing device that bends with steel plate.
Claims (11)
1, a kind ofly is used to prolong two plate gate valve working life, and improves the method for reliability.It is characterized in that: the dress system is parallel to the guide groove (rail) of screw axis on gate valve, and corresponding in the exsertion part of screw rod more than differential.By being stuck in guide groove and can prolonging the rigidity structure that guide groove slides screw rod is linked to each other with brake valve body, make screw rod can only prolong it and do and vertically move and can not rotary oscillation.
According to claim 1 described method, it is characterized in that when guide rail places the gate valve lid that 2, said rigidity structure is anchored on the close differential place of screw rod, when guide groove placed screw rod, said rigidity structure was anchored on the close swivel nut place of gate valve lid.
3, a kind of in order to prevent the antiswing device of gate valve screw rod rotary oscillation, this antiswing device is made up of anti-sway link stopper (1) and fastening piece (6) (7).It is characterized in that; Anti-sway block is fixed on the gate valve screw rod by fastening piece, and subsides are stuck in the rib sidewall of gate valve lid or cover assembly, rib by gate valve lid or cover assembly is a guide rail, can move up and down at the rib of downward gate valve lid of the drive of screw rod or cover assembly.
4, it is characterized in that groove (2) that coincide with screw rod and the hole (4) of matching with fastening piece being arranged at the position that the center and the screw rod of anti-sway block is fastened according to claim 3 described antiswing devices
5, it is characterized in that one top wire hole and jackscrew thereof being arranged according to claim 4 described antiswing devices at anti-sway block centrally aligned screw rod.
6, it is characterized in that according to claim 4 described antiswing devices, in said identical groove (2), be processed with, improve the tooth that fastening performance is a purpose (3) to increase pressure.
7, it is characterized in that according to claim 3 described antiswing devices said fastening piece is by U bolt (6), the standard piece bolt is formed.
8, it is characterized in that to adorn the two retaining end types (8) of making, four retaining end types (9) according to claim 3 described antiswing devices according to usage requirement and service condition.
Anti-sway block is to be anchored on the gate valve screw rod by U bolt when 9, it is characterized in that according to claim 8 described antiswing devices two retaining ends use, four retaining end types when using be with two anti-sway blocks by the standard piece bolton in the gate valve screw rod.
10, to having the transformation of two plate gate valves now. by transformation and application antiswing device, make a kind of long lifetime, two plate gate valves of high reliability to existing two plate gate valves. its transformation is; The rib length and the spiro rod length of lengthening lid or cover assembly, screw rod spiral shell button raw footage is constant, antiswing device can be installed in the no button position that screw rod is exposed, and make the shift motion of antiswing device under screw rod drives reach gate valve nominal diameter value. processing gate valve lid or cover assembly rib sidewall and the contacted surface of anti-sway block, certain degree of finish is arranged, with respect to the parallelism concentricity of screw rod.
11, be according to claim 8 described transformations two plate gate valves, used the set type antiswing device, it is characterized in that, with claim 3 described anti-sway blocks, two merging are fabricated to one. be processed with one or several keys groove in its center and the hole that screw rod cooperates. and the relevant position of gate valve screw rod also processes keyway, when gate valve is installed screw rod, the set type antiswing device is set in screw rod. rely on key fastening, jackscrew is positioned the relevant position of screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89102165 CN1046380A (en) | 1989-04-14 | 1989-04-14 | Be used to prolong the method that two valves that operate a switch improve its reliability working life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89102165 CN1046380A (en) | 1989-04-14 | 1989-04-14 | Be used to prolong the method that two valves that operate a switch improve its reliability working life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1046380A true CN1046380A (en) | 1990-10-24 |
Family
ID=4854558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89102165 Pending CN1046380A (en) | 1989-04-14 | 1989-04-14 | Be used to prolong the method that two valves that operate a switch improve its reliability working life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1046380A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062223A (en) * | 2010-12-03 | 2011-05-18 | 中国建筑标准设计研究院 | Drainage ditch closed flashboard device |
| CN102451982A (en) * | 2010-10-19 | 2012-05-16 | 天津迎新船舶机械有限公司 | Processing technic for installation hole cover plate of oil cylinder supporting seat of towing bitt |
-
1989
- 1989-04-14 CN CN 89102165 patent/CN1046380A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102451982A (en) * | 2010-10-19 | 2012-05-16 | 天津迎新船舶机械有限公司 | Processing technic for installation hole cover plate of oil cylinder supporting seat of towing bitt |
| CN102062223A (en) * | 2010-12-03 | 2011-05-18 | 中国建筑标准设计研究院 | Drainage ditch closed flashboard device |
| CN102062223B (en) * | 2010-12-03 | 2012-06-20 | 中国建筑标准设计研究院 | Drainage ditch closed flashboard device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1048743A (en) | Quick-fastening nut | |
| CN101031701A (en) | Electrically driven entryway actuation system | |
| CN1099929C (en) | Clamping chuck for rotating tools | |
| CN1075609C (en) | Device for balancing inertia moment of reciprocative piston in internal combustion engine | |
| CN1046380A (en) | Be used to prolong the method that two valves that operate a switch improve its reliability working life | |
| CN1247590A (en) | Locking mechanism for rotary working member | |
| CN1012588B (en) | Rapid detachable fastening thread check device | |
| CN2815680Y (en) | Press slider and oil cylinder link mechanism | |
| CN2731172Y (en) | Automatic compensator and brake using the same | |
| CN1785603A (en) | Mounding and removing tool of cylinder jacker | |
| CN2876163Y (en) | Fixed type, single direction moving type and multidirection moving type tray rubbe supporting seat | |
| CN1807951A (en) | Valve with locking mechanism | |
| CN1204348C (en) | Fastener of washer and spare washer, and fastening method and power tool using said washer | |
| CN1204321C (en) | Connection clamp and sanitary ware used for toilet seat assembly adopting said clamp | |
| CN219242410U (en) | Lock bolt structure | |
| CN113028112B (en) | Regulating valve | |
| CN2353957Y (en) | V-shaped jump-ring self-locking nut | |
| CN220600208U (en) | High-strength bolt | |
| CN219471103U (en) | Quick-assembling water tap | |
| CN215333910U (en) | Locking fastening bolt structure | |
| RU2819891C1 (en) | Rigging cover | |
| CN109623718A (en) | A kind of high speed motor car oil-pressure damper rubber nodal point Universal angle crimping fixture | |
| CN221647558U (en) | Steel wire ring guiding transmission shaft device | |
| CN218913330U (en) | Piston rod with anti-rotation structure | |
| CN219866529U (en) | Valve rod connecting structure and movable connecting device of electric valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |