CN203141059U - Dedicated hydraulic tool for disassembling guide vane outer bearing - Google Patents
Dedicated hydraulic tool for disassembling guide vane outer bearing Download PDFInfo
- Publication number
- CN203141059U CN203141059U CN 201320106157 CN201320106157U CN203141059U CN 203141059 U CN203141059 U CN 203141059U CN 201320106157 CN201320106157 CN 201320106157 CN 201320106157 U CN201320106157 U CN 201320106157U CN 203141059 U CN203141059 U CN 203141059U
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- Prior art keywords
- piston
- outer bearing
- piston cylinder
- guide vane
- dedicated hydraulic
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- 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.)
- Expired - Fee Related
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- Hydraulic Turbines (AREA)
Abstract
The utility model discloses a dedicated hydraulic tool for disassembling a guide vane outer bearing. A piston cylinder (1) is internally provided with a piston (2), the piston (2) is provided with a piston inner seal (9) and a piston outer seal (10) which are sealed with the piston cylinder (1), one end, which is away from the piston (2), of the piston cylinder (1) is provided with a flange (11) which is in flange connection with a guide vane outer bearing bush, the piston (2) is screwed with an adjusting bolt (3) by adopting threads, the adjusting bolt (3) is internally screwed with a first fixing bolt (4), which can be connected with the end part of a guide vane shaft, by adopting threads, and the piston cylinder (1) is provided with a pressure oil joint (8) which is communicated with an oil chamber between the piston cylinder (1) and the piston (2). The dedicated hydraulic tool is formed by assembling all components, the dedicated hydraulic tool for disassembling the guide vane outer bearing is suitable for disassembling all bulb through-flow turbine guide vane outer bearings, the disassembling work can be completed under the situation without destroying the guide vane outer bearing bush, and service is provided for replacing bearings and seals.
Description
Technical field
The utility model relates to a kind of stator outer bearing dismounting dedicated hydraulic instrument, mainly for particularly relating to Bulb Turbine Units stator outer bearing dismounting dedicated hydraulic instrument.
Background technology
After the long-term operation of Bulb Turbine Units stator outer bearing, thereby ubiquity seal aging, wearing and tearing cause the phenomenon of leaking, and to leaking, processing need be by stator outer bearing lining and the sealing of sealing ring dismounting and change.Adopt nondestructive dismounting process and technology is the technique difficulty of capturing the bearing mounting or dismounting always.In stator outer bearing lining disintegrates because of the restriction of being overhauled technique with without suitable specific purpose tool, generally adopt at present outside on the bearing insert flange construction bolt or be welded with channel-section steel and steel plate, then the jack application of force being installed between steel plate and the stator diameter of axle and outwards carrying out the dismounting of stator outer bearing in top.Because (i) leaking and cause bearing and each composition surface corrosion of lining; (ii) the basic flange fit clearance of guide vane bearing lining and outer gate barrel is little little with ball bearing and stator diameter of axle fit clearance, and in unloading process, the guide vane bearing lining is not controlled and synchronously outwards moved back and make it stuck; (iii) the improper combined cause that waits of selected dismounting technique, make dismounting very difficult.Part drops into a large amount of manpowers and material resources all can't be dismantled it, and the employing carbon arc air gouging finally had bit by bit digs out the stator outer bearing, makes bearing insert, bearing, sealing copper ring damage can not use fully, and the stator diameter of axle also sustains damage.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of injury-free stator outer bearing dismounting dedicated hydraulic instrument of the complete and stator diameter of axle that can guarantee stator outer bearing lining.
In order to solve the problems of the technologies described above, the stator outer bearing dismounting dedicated hydraulic instrument that the utility model provides, be provided with piston in piston cylinder, described piston is provided with sealing and piston external seal in the piston sealed with described piston cylinder, an end away from described piston of described piston cylinder is provided with flange and the bolt be connected with stator outer bearing lining flange, on described piston, adopt screw thread to be combined with the adjustment bolt, in described adjustment bolt, adopt screw thread to be combined with first set bolt that can be connected with the guide vane teunnion end, described piston cylinder is provided with the pressure oil joint be communicated with oil pocket between described piston with described piston cylinder.
Be provided with the second set bolt on described piston, described piston cylinder is provided with guide post, and described the second set bolt is provided with the locating piece with described guide post suit.
The screw of described pressure oil joint and described guide post are symmetrical arranged with the longitudinal center line of described piston cylinder.
Adopt the stator outer bearing dismounting dedicated hydraulic instrument of technique scheme, broken conventional dismounting and be welded with channel-section steel and steel plate or adopt carbon arc air gouging that the stator outer bearing is bit by bit dug out to destructive dismounting technique on the lining flange.Avoided destructive dismounting to cause bearing insert, bearing, sealing copper ring to damage can not use fully, the stator diameter of axle also has damage.The dedicated hydraulic instrument is installed in employing on stator outer bearing lining, then with the hand-hydraulic high-pressure oil pump, to hydraulic tool, pressurize, stator outer bearing lining uniform stressed method integral body is dismantled, and for the dismounting of component of the same type provides a kind of new dismounting technique, has wider generalization.
The making of this stator outer bearing dismounting dedicated hydraulic instrument is used, and following advantage is arranged:
1. stator outer bearing dedicated hydraulic tool making is simple, according to design drawing, contacts the standby various lathes of a furniture, milling machine, and grinding machine, drilling machine, planer, Casting Equipment, and have the plant equipment manufacturer of similar hydraulic test working ability just can complete.
2. intactly complete the dismounting of stator outer bearing and lining, avoided bearing insert, bearing, sealing copper ring being damaged can not use fully, the damage of the stator diameter of axle.
3. complete bearing insert, bearing, sealing copper ring, the stator diameter of axle, capable with regard to installation and operation after changing sealing, reduced the cost of overhaul.
4. the use of dedicated hydraulic instrument has alleviated the labour intensity that the stator outer bearing is dismantled, has accelerated stator outer bearing dismounting progress, has shortened the unit maintenance duration.
In sum, the utility model is a kind of stator outer bearing dismounting dedicated hydraulic instrument that can guarantee that the complete of stator outer bearing and stator diameter of axle body are injury-free.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Referring to Fig. 1, be provided with piston 2 in piston cylinder 1, piston 2 is provided with sealing 9 and piston external seal 10 in the piston sealed with piston cylinder 1, an end away from piston 2 of piston cylinder 1 is provided with flange 11 and the bolt 15 be connected with stator outer bearing lining flange 12, the specification of bolt 15 is 8 M30 * 60 connecting bolts and 3 M24 * 60 connecting bolts, on piston 2, adopt screw thread to be combined with and adjust bolt 3, the specification of adjusting bolt 3 is M80, adjust the interior employing screw thread of bolt 3 and be combined with first set bolt 4 that can be connected with guide vane teunnion 14 ends, the specification of the first set bolt 4 is M36 * 260, piston cylinder 1 is provided with the pressure oil joint 8 be communicated with oil pocket between piston 2 with piston cylinder 1, be provided with the second set bolt 5 on piston 2, piston cylinder 1 is provided with guide post 7, the second set bolt 5 is provided with the locating piece 6 with guide post 7 suits, the screw of pressure oil joint 8 and guide post 7 are symmetrical arranged with the longitudinal center line of piston cylinder 1.Piston cylinder 1, piston 2, adjust bolt 3, the first set bolt 4 by the 45# forging through modified, then, after the processing of the operations such as rough turn, half finish turning, finish turning, inner circle mill, boring, on piston, the inside and outside sealing of installation is assembled again.
1, preparation:
1. early-stage preparations---each process component of stator outer bearing dismounting dedicated hydraulic instrument: sealing 9 in the first set bolt 4 of the adjustment bolt 3 of piston cylinder 1, piston 2, M80, M36 * 260, the second set bolt 5, guide post 7, locating piece 6, pressure oil joint 8, piston, piston external seal 10 are all prepared to put in place with 8 (12.9 grades of performance rates) M30 * 60 connecting bolts of outsourcing, 3 (12.9 grades of performance rates) M24 * 60 connecting bolt parts, by stator outer bearing dismounting dedicated hydraulic instrument installation diagram, are assembled.
Require:
1) the dedicated hydraulic instrument is designed by oil pressure 100 MPas, and workpiece size and tolerance and material meet industry standard, seal selection standard part.
2) each holes processing of the flange 11 of piston cylinder 1, center need with 12 accessory processings of stator outer bearing lining flange.
3) screw of the pressure oil joint 8 of piston cylinder 1 processing need with the accessory processing of hand-hydraulic high-pressure oil pump pressure oil pipe joint.
4) require the symmetrical processing in instrument center of gravity center that M20 suspension ring screw is installed, pressure oil pipe connecting socket and guide post are symmetric position.
2. early-stage preparations---the instrument that reaming and tapping are carried out in 8 φ 25 holes of stator outer bearing lining flange; (1) one, infinitely variable speeds (possessing Tapping Function on General M30) magnetic electric drill; (2) φ 26.5 drill bits for building machine; (3) building machine M30 screw tap; (4) provide Power supply belt earth leakage protective cable hank, (five) be greater than 100 MPa hand-hydraulic high-pressure oil pumps (wear Pressure gauge show) and high-pressure hose a set of.
2, site operation:
1. guide vane bearing lid and hold-down bolt, wicket-gate-actuating rod and connecting rod, bearing are connect to unlink and dismantled by maintenance procedure with parts such as outer jointing jackets.
2. infinitely variable speeds (possessing Tapping Function on General M30) magnetic electric drill is arranged on stator outer bearing lining flange 12, carry out reaming and tapping perpendicular to 12 pairs 8 φ 25 holes of stator outer bearing lining flange, requiring 8 hole tapping depths of stator outer bearing lining flange 12 is flange thickness-3mm.
3. with lifting gear, the dedicated hydraulic instrument is winched to and is disassembled stator outer bearing 13 positions and installed, after first set bolt 4 patchholes and the M36 screw contraposition of guide vane teunnion 14De Jing center of M36 * 260, the first set bolt 4 of M36 * 260 is tightened in to the top M36 screw interior (being convenient to the dedicated hydraulic instrument installs and can prevent that the dedicated hydraulic instrument from coming off) of guide vane teunnion 14.
4. lifting gear is removed, clockwise rotating piston cylinder 1, make it near stator outer bearing lining flange 12, carry out M30 and the contraposition of M24 screw, and 8 M30 and 3 M24 connecting bolts finally are installed.Require bolt in installation, to use torsion identical, guarantee that each is bolt strained consistent.
5. the hand-hydraulic high-pressure oil pump pressure oil pipe snap joint of preparing is arranged on the pressure oil joint 8 of piston cylinder 1.Pressurize to hydraulic tool with the hand-hydraulic high-pressure oil pump, check the situation that stator outer bearing lining flange 12 outwards moves back simultaneously.Attention: (2) piston 2 impulse strokes are 30mm, and the overtravel scope is forbidden in use procedure, and when stroke reaches 30mm, unlatching oil pump check valve unloads oil pressure and tightens M80 adjustment bolt 3 piston 2 strokes are adjusted to working range.
6. exit the installation site of guide vane teunnion 14 fully at stator outer bearing lining flange 12, lifting gear is installed instrument and lining are lifted by crane after stressed and again the first set bolt 4 of M36 * 260 unscrewed to dismounting, finally with lifting gear, stator outer bearing lining flange 12 is hung to scene and be transported between maintenance and processed.
Claims (3)
1. a stator outer bearing is dismantled the dedicated hydraulic instrument, it is characterized in that: be provided with piston (2) in piston cylinder (1), described piston (2) is provided with the interior sealing of piston (9) and the piston external seal (10) with described piston cylinder (1) sealing, an end away from described piston (2) of described piston cylinder (1) is provided with the flange (11) be connected with stator outer bearing lining flange, the upper screw thread that adopts of described piston (2) is combined with adjustment bolt (3), in described adjustment bolt (3), adopt screw thread to be combined with first set bolt (4) that can be connected with the guide vane teunnion end, described piston cylinder (1) is provided with the pressure oil joint (8) be communicated with oil pocket between described piston (2) with described piston cylinder (1).
2. stator outer bearing according to claim 1 is dismantled the dedicated hydraulic instrument, it is characterized in that: be provided with the second set bolt (5) on described piston (2), described piston cylinder (1) is provided with guide post (7), and described the second set bolt (5) is provided with the locating piece (6) with described guide post (7) suit.
3. stator outer bearing according to claim 2 is dismantled the dedicated hydraulic instrument, and it is characterized in that: the screw of described pressure oil joint (8) and described guide post (7) are symmetrical arranged with the longitudinal center line of described piston cylinder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320106157 CN203141059U (en) | 2013-03-08 | 2013-03-08 | Dedicated hydraulic tool for disassembling guide vane outer bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320106157 CN203141059U (en) | 2013-03-08 | 2013-03-08 | Dedicated hydraulic tool for disassembling guide vane outer bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203141059U true CN203141059U (en) | 2013-08-21 |
Family
ID=48968615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320106157 Expired - Fee Related CN203141059U (en) | 2013-03-08 | 2013-03-08 | Dedicated hydraulic tool for disassembling guide vane outer bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203141059U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874992A (en) * | 2015-03-25 | 2015-09-02 | 东风汽车公司 | Automotive rear bridge torsion beam hinged lining assembling and disassembling tool |
| 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 |
| CN105537907A (en) * | 2015-12-17 | 2016-05-04 | 太原重工股份有限公司 | Oil film bearing replacer |
| CN108247575A (en) * | 2018-01-15 | 2018-07-06 | 中铁工程机械研究设计院有限公司 | The tooling device and its method of the two-way lip seal component of hydraulic motor drive end bearing bracket |
| CN110861030A (en) * | 2019-12-03 | 2020-03-06 | 哈尔滨电机厂有限责任公司 | Method for assembling and disassembling top cover of water guide mechanism of water turbine |
| CN113798778A (en) * | 2021-09-29 | 2021-12-17 | 广西桂冠电力股份有限公司大化水力发电总厂 | Method for overhauling large-head shaft sleeve of guide vane of water turbine |
-
2013
- 2013-03-08 CN CN 201320106157 patent/CN203141059U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874992A (en) * | 2015-03-25 | 2015-09-02 | 东风汽车公司 | Automotive rear bridge torsion beam hinged lining assembling and disassembling tool |
| CN104874992B (en) * | 2015-03-25 | 2017-06-16 | 东风汽车公司 | Automobile axle torsion beam hinge bush dismantling device |
| 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 |
| CN105537907A (en) * | 2015-12-17 | 2016-05-04 | 太原重工股份有限公司 | Oil film bearing replacer |
| CN108247575A (en) * | 2018-01-15 | 2018-07-06 | 中铁工程机械研究设计院有限公司 | The tooling device and its method of the two-way lip seal component of hydraulic motor drive end bearing bracket |
| CN108247575B (en) * | 2018-01-15 | 2023-05-30 | 中铁科工集团装备工程有限公司 | Tool equipment and method for hydraulic motor front end cover bidirectional lip sealing assembly |
| CN110861030A (en) * | 2019-12-03 | 2020-03-06 | 哈尔滨电机厂有限责任公司 | Method for assembling and disassembling top cover of water guide mechanism of water turbine |
| CN113798778A (en) * | 2021-09-29 | 2021-12-17 | 广西桂冠电力股份有限公司大化水力发电总厂 | Method for overhauling large-head shaft sleeve of guide vane of water turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20140308 |