CN205111738U - Hydraulic turbine stator upper end cover U type seal installation instrument - Google Patents
Hydraulic turbine stator upper end cover U type seal installation instrument Download PDFInfo
- Publication number
- CN205111738U CN205111738U CN201520875122.5U CN201520875122U CN205111738U CN 205111738 U CN205111738 U CN 205111738U CN 201520875122 U CN201520875122 U CN 201520875122U CN 205111738 U CN205111738 U CN 205111738U
- Authority
- CN
- China
- Prior art keywords
- end cover
- shaped
- steel pipe
- shaped sealing
- packing unit
- 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.)
- Active
Links
- 238000009434 installation Methods 0.000 title abstract description 21
- 238000012856 packing Methods 0.000 claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 230000003292 diminished effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Abstract
(B, ) the utility model discloses a hydraulic turbine stator upper end cover (b) (b) U (b) (b) type seal installation instrument, (b) (b) press U type packing device (1) top to be equipped with closing device (2) including pressing U type packing device (1), press U type packing device (1) below to be equipped with U type sealed fixed loop (3), press U type packing device (1) for cover tube structure, including steel pipe (4), steel pipe (4) upper portion is connected with round board (5), sets up in the middle of round board (5) porose (6), and steel pipe (4) outside is equipped with spacing ring (7). The utility model has the characteristics of (B, ) (b) reduce sealed (b) (the b) of (b) (b) U (b) (b) type press the probability (b) (b) that damages partially, sealed installation of high quality, can improve the installation rate and reduce installer intensity of labour. (B, )
Description
Technical field
the utility model relate to a kind of installation of U-shaped sealing, particularly a kind of guide vanes of water turbine
the U-shaped sealing-installing method of upper end cover and instrument.
Background technology
because the difficult sealing of O RunddichtringO on guide vanes of water turbine upper end cover is to meet the life cycle of factory, so change O RunddichtringO into U-shaped sealing ring, but U-shaped when being sealed in free state the external diameter of lip be the external diameter of the seal groove be greater than on stator upper end cover, so the instrument of the lip of U-shaped sealing with similar " one " word screwdriver slowly must be clamp-oned in seal groove when installing, easy being squeezed by the lip of U-shaped sealing is hindered in the process, reduce the result of use of sealing, and the time of installing consumption is also long.Because a hydraulic turbine has a lot of stator, so the stator upper end cover of required sealing is also a lot, the locational space at stator place is narrow and small, is not easy to the operation of workman, and workman's long-time operation can consume a large amount of muscle power.So easily damage the problems such as the slow and installation personnel labour intensity of poor, the installation rate of installation quality is large of U-shaped sealing, sealing when existing installation method and instrument also exist installation.
Utility model content
the purpose of this utility model is, provides the U-shaped sealing-installing method of a kind of guide vanes of water turbine upper end cover and instrument.It has reduce U-shaped sealing pressing and partially damage probability, sealing installation quality good, installation rate can be improved and reduce the feature of installation personnel labour intensity.
the technical solution of the utility model: the U-shaped seal instal tool of guide vanes of water turbine upper end cover, comprises the U-shaped packing unit of pressure, presses above U-shaped packing unit and be provided with hold down gag, press below U-shaped packing unit and be provided with U-shaped sealing retainer ring; The U-shaped packing unit of described pressure is telescoping structure, comprises steel pipe, and steel pipe top is connected with round plate, offers porose, be provided with spacing ring outside steel pipe in the middle of round plate.
in the U-shaped seal instal tool of aforesaid guide vanes of water turbine upper end cover, described steel pipe 4 internal diameter is greater than the internal diameter of stator upper end cover seal groove, and external diameter is less than the external diameter of stator upper end cover seal groove.
in the U-shaped seal instal tool of aforesaid guide vanes of water turbine upper end cover, described U-shaped sealing retainer ring, top is provided with bolt hole, and bottom is provided with positioning spigot; The inner surface of U-shaped sealing retainer ring is the inclined-plane that internal diameter is diminished toward bottom gradually from top, and the maximum size in top is greater than the lip external diameter of U-shaped sealing, and the internal diameter size of bottom is less than the external diameter of stator upper end cover seal groove.
in the U-shaped seal instal tool of aforesaid guide vanes of water turbine upper end cover, described hole is through hole, and described hold down gag is bolt, and described bolt hole is ear stud hole.
compared with prior art, the utility model passes through hold-down bolt by original by slowly being clamp-oned in seal groove to replace with by the lip of U-shaped sealing with the instrument of similar " one " word screwdriver, U-shaped packing unit and U-shaped sealing retainer ring is pressed to be pressed into seal groove with the use of by U-shaped sealing, thus make U-shaped sealing not fragile, also improve the installation quality of sealing, compress the U-shaped packing unit of pressure by hold-down bolt simultaneously, utilize the transmission of power, change work forced position, time saving and energy saving, the labour intensity of staff is also mitigated while improve installation rate.Therefore, the utility model have reduce U-shaped sealing pressing and partially damage probability, sealing installation quality good, installation rate can be improved and reduce the feature of installation personnel labour intensity.
Accompanying drawing explanation
fig. 1 is the structural representation of the U-shaped seal instal tool of guide vanes of water turbine upper end cover;
fig. 2 is the using state figure of the U-shaped seal instal tool of guide vanes of water turbine upper end cover.
description of symbols in accompanying drawing: 1-presses U-shaped packing unit, 2-hold down gag, 3-U type sealing retainer ring, 4-steel pipe, the round plate of 5-, 6-hole, 7-spacing ring, 8-bolt hole, 9-positioning spigot.
Detailed description of the invention
below in conjunction with drawings and Examples, the utility model is further described, but not as the foundation to restriction of the present utility model.
embodiment.The U-shaped seal instal tool of guide vanes of water turbine upper end cover, is formed as depicted in figs. 1 and 2, comprises the U-shaped packing unit 1 of pressure, presses above U-shaped packing unit 1 and be provided with hold down gag 2, press below U-shaped packing unit 1 and be provided with U-shaped sealing retainer ring 3; The U-shaped packing unit 1 of described pressure is telescoping structure, and comprise steel pipe 4, steel pipe 4 top is connected with round plate 5, offers porose 6, be provided with spacing ring 7 outside steel pipe 4 in the middle of round plate 5.
described steel pipe 4 internal diameter is greater than the internal diameter of stator upper end cover seal groove, and external diameter is less than the external diameter of stator upper end cover seal groove.
described U-shaped sealing retainer ring 3, top is provided with bolt hole 8, and bottom is provided with positioning spigot 9; The inner surface of U-shaped sealing retainer ring 3 is the inclined-plane that internal diameter is diminished toward bottom gradually from top, and the maximum size in top is greater than the lip external diameter of U-shaped sealing, and the internal diameter size of bottom is less than the external diameter of stator upper end cover seal groove.
described hole 6 is through hole, and described hold down gag 2 is bolt, and described bolt hole 8 is ear stud hole.The position of bolt hole 8 between the inclined-plane and positioning spigot 9 of U-shaped sealing retainer ring 3, and be evenly arranged along the center of U-shaped sealing retainer ring 3.
operation principle of the present utility model: U-shaped sealing retainer ring 3 top is provided with dismountable lifting bolt hole, and bottom is provided with the positioning spigot 9 matched with guide vane sleeve.U-shaped sealing retainer ring 3 inner surface be set to the inclined-plane that internal diameter diminishes toward bottom gradually from top, the size that wherein U-shaped sealing retainer ring 3 top is maximum is larger than the lip external diameter of U-shaped sealing, and the internal diameter size of bottom is more smaller than the external diameter of stator upper end seal groove.The inclined design of U-shaped sealing retainer ring 3 plays guide effect to the U-shaped sealing of installation, makes U-shaped sealing more easily enter seal groove, protects sealing surface and not easily sustain damage.
u-shaped packing unit 1 is pressed to be telescoping structure, U-shaped packing unit 1 top is pressed to be one block of round plate 5, round plate 5 center is with screw, U-shaped packing unit 1 main body is pressed to be round steel pipe 4, steel pipe 4 arranged outside restraining position ring block 7, wherein the internal diameter of steel pipe 4 is slightly larger than the internal diameter of the seal groove be positioned on stator upper end cover, and external diameter is slightly less than the external diameter of the seal groove on stator upper end cover.Press U-shaped packing unit 1 to be cylindrical shroud cartridge type structure, make U-shaped sealing and stator upper end cover uniform force, synchronously move down, decrease the probability that pressure is damaged partially, improve installation rate; The setting of spacing ring 7 can prevent sealing from being damaged by pressure, and can check whether U-shaped sealing is in place.
u-shaped sealing is placed in U-shaped sealing retainer ring 3, U-shaped sealing retainer ring 3 is positioned at the below of pressing U-shaped packing unit 1, round plate 5 center on U-shaped packing unit 1 top is pressed to be provided with through hole, stator upper end cover is provided with bolt hole, U-shaped packing unit 1 is pressed to be connected by hold-down bolt with stator upper end cover, turn hold-down bolt, transmit a downward thrust to the U-shaped packing unit 1 of pressure, make it by force transmission on the supporting surface of U-shaped sealing, thus U-shaped sealing is slowly moved down enter seal groove.When spacing ring 7 contacts with U-shaped sealing retainer ring 3, show that U-shaped sealing is in place, unclamp hold-down bolt, thus U-shaped packing can be avoided to damage by pressure, ensure that the installation quality of sealing.
Claims (4)
1. the U-shaped seal instal tool of guide vanes of water turbine upper end cover, is characterized in that: comprise the U-shaped packing unit of pressure (1), presses U-shaped packing unit (1) top to be provided with hold down gag (2), presses U-shaped packing unit (1) below to be provided with U-shaped sealing retainer ring (3); The U-shaped packing unit of described pressure (1) is telescoping structure, comprises steel pipe (4), and steel pipe (4) top is connected with round plate (5), offers porose (6) in the middle of round plate (5), and steel pipe (4) outside is provided with spacing ring (7).
2. the U-shaped seal instal tool of guide vanes of water turbine upper end cover according to claim 1, is characterized in that: described steel pipe (4) internal diameter is greater than the internal diameter of stator upper end cover seal groove, and external diameter is less than the external diameter of stator upper end cover seal groove.
3. the U-shaped seal instal tool of guide vanes of water turbine upper end cover according to claim 1, is characterized in that: described U-shaped sealing retainer ring (3) is provided with bolt hole (8), and U-shaped sealing retainer ring (3) bottom is provided with positioning spigot (9); The inner surface of U-shaped sealing retainer ring (3) is the inclined-plane that internal diameter is diminished toward bottom gradually from top, and the maximum size in top is greater than the lip external diameter of U-shaped sealing, and the internal diameter size of bottom is less than the external diameter of stator upper end cover seal groove.
4. the U-shaped seal instal tool of guide vanes of water turbine upper end cover according to claim 3, it is characterized in that: described hole (6) are through hole, described hold down gag (2) is bolt, and described bolt hole (8) is ear stud hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520875122.5U CN205111738U (en) | 2015-11-05 | 2015-11-05 | Hydraulic turbine stator upper end cover U type seal installation instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520875122.5U CN205111738U (en) | 2015-11-05 | 2015-11-05 | Hydraulic turbine stator upper end cover U type seal installation instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205111738U true CN205111738U (en) | 2016-03-30 |
Family
ID=55567384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520875122.5U Active CN205111738U (en) | 2015-11-05 | 2015-11-05 | Hydraulic turbine stator upper end cover U type seal installation instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205111738U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171679A (en) * | 2015-11-05 | 2015-12-23 | 国家电网公司 | Method and tool for installing U seals on guide vane upper end covers of water turbine |
-
2015
- 2015-11-05 CN CN201520875122.5U patent/CN205111738U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171679A (en) * | 2015-11-05 | 2015-12-23 | 国家电网公司 | Method and tool for installing U seals on guide vane upper end covers of water turbine |
| CN105171679B (en) * | 2015-11-05 | 2017-01-25 | 国家电网公司 | Method and tool for installing U seals on guide vane upper end covers of water turbine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205111738U (en) | Hydraulic turbine stator upper end cover U type seal installation instrument | |
| CN204248800U (en) | Stator bearing shell installation special tool | |
| CN105171679A (en) | Method and tool for installing U seals on guide vane upper end covers of water turbine | |
| CN202212928U (en) | Mechanical-seal stationary seal ring press-in device | |
| CN105345438A (en) | Machine for punching guide pin for camshaft | |
| CN203343977U (en) | Installation tool for large-diameter sealing ring | |
| CN204113183U (en) | A kind of sealing device of high temperature resistant compression test under super high pit shaft | |
| CN202511951U (en) | Cooling-wall hydrostatic test tool | |
| CN209818020U (en) | Novel packer | |
| CN202994528U (en) | Full-sealed sampling device for portable oil charge device | |
| CN208034587U (en) | A kind of dismounting installation valve split collets tool | |
| CN203612170U (en) | Propeller installing tool | |
| CN205218456U (en) | Cam axle load pilot pin machine | |
| CN204692023U (en) | For the two-stage pressurizing device of high-pressure pump | |
| CN204686372U (en) | The erecting tools of the final power wheel hub bearing of a kind of bull-dozer | |
| CN205290401U (en) | A frock that is used for turning of liner ring and drilling | |
| CN204148812U (en) | A kind of lubricating oil pump assembly tool | |
| CN212499563U (en) | Seal fixing mechanism | |
| CN201736190U (en) | Mounting tool for valve seat of one-way valve at inlet of diaphragm pump | |
| CN202927045U (en) | Sectional press plate for end face seal of water guide mechanism | |
| CN204110746U (en) | A kind of hydraulic machinery gripping mechanism of band conveyor adhesive tape | |
| CN202599615U (en) | Pull-rod type pressure testing device for floating head heat exchanger | |
| CN212372101U (en) | Bearing hydraulic assembly machine | |
| CN220218437U (en) | A equipment frock for overvoltage release diaphragm maintenance is fixed | |
| CN201931525U (en) | Lifting device for inner and outer dies of forming bench for quartz stone press plate production lines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |