CN113027657A - Tool and method for pulling out pin bolt pin bush of pin of large shaft and rotating wheel coupling of water turbine - Google Patents
Tool and method for pulling out pin bolt pin bush of pin of large shaft and rotating wheel coupling of water turbine Download PDFInfo
- Publication number
- CN113027657A CN113027657A CN202110387932.6A CN202110387932A CN113027657A CN 113027657 A CN113027657 A CN 113027657A CN 202110387932 A CN202110387932 A CN 202110387932A CN 113027657 A CN113027657 A CN 113027657A
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- Prior art keywords
- pin
- hole
- water turbine
- bolt
- jackscrew
- 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.)
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- 241001397809 Hakea leucoptera Species 0.000 title claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 230000008878 coupling Effects 0.000 title claims abstract description 24
- 238000010168 coupling process Methods 0.000 title claims abstract description 24
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000005259 measurement Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 2
- 230000006378 damage Effects 0.000 abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/12—Blades; Blade-carrying rotors
- F03B3/128—Mounting, demounting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Turbines (AREA)
Abstract
The invention provides a tool and a method for pulling out a pin sleeve of a pin bolt of a large shaft and a rotating wheel coupling pin of a water turbine, wherein the tool for pulling out the pin sleeve of the pin bolt of the large shaft and the rotating wheel coupling pin of the water turbine comprises: the flange plate is provided with a connecting through hole and a threaded through hole along the axial direction, and the connecting through hole can be matched and connected with a lifting hole bolt on the pin bush to be disassembled; the jackscrew is connected with the screw thread through-hole cooperation, and the one end of jackscrew can be with the terminal surface butt of hydraulic turbine main shaft, and the other end of jackscrew is for revolving the end of twisting, and revolves the end of twisting and place in the outside of screw thread through-hole. The invention has the advantages that the pin bush to be disassembled is not easy to damage, the experience requirement of operators is not high, and only a spanner or an electric spanner needs to be operated to screw the jackscrew after the device is assembled. Compared with the mode in the prior art, the embodiment can reduce the requirement on the operation site, can effectively ensure personal safety and achieves the purpose of convenient disassembly.
Description
Technical Field
The invention relates to the field of maintenance tools for hydroelectric generating sets, in particular to a tool and a method for pulling out a pin sleeve of a pin bolt of a large shaft and a rotating wheel coupling pin of a water turbine.
Background
The rotating wheel of the water turbine is connected with the main shaft by adopting a structure of transmitting torque by a middle flange pin bush, the pin bush plays roles in positioning and transmitting torque, and the bolt is free from any shearing force. The sum of fit clearance between the pin bush and the coupling bolt hole is 0.04mm-0.06mm, and the coupling bolt is screwed up and fixed by adopting a heating and stretching interference fit method, so that the pin bush is under the action of transverse shearing force, and certain deformation exists under the action of stress at ordinary times. If the adoption is broken to tear open, cause the damage to the bolt hole easily, influence the maintenance progress.
The installation and overhaul sites of the hydroelectric generating set are limited by equipment conditions, time and places, the pin bush is usually disassembled by a simple technology, the end face of the pin bush is separated from the bolt hole, a certain gap exists, the part of the pin bush exposed out of the bolt hole can be knocked by the copper rod, the pin bush is gradually loosened, and when the gap of the pin bush separated from the pin hole is large enough, the copper rod can extend into the hole and knock from inside to outside, so that the purpose of pulling out the pin bush is achieved. For the pin bush which is not separated from the bottom of the bolt hole completely, the structure is clamped tightly, so that the light-dependent knocking effect is not large, and the pin bush can be pulled out by using a three-jaw puller.
The prior art has the following disadvantages:
1. the copper bar is used for knocking and taking the pin bush, the requirement on the skill level of operators is high, and the operators are easily injured. Under the normal condition, the guide pin is gapped with the bolt hole, when lifting by crane the macroaxis after the pin bolt is demolishd, should just can demolish the guide pin very easily, but because unit operating duration is long, receive factor influences such as stress action and rust stain, the guide pin all can have the bite of different degrees, to the condition that has the gap bottom the guide pin with the bolt hole, can adopt the bar copper to strike vibrations from the equidirectional, make the guide pin become flexible gradually, break away from with the bolt hole, to the less serious guide pin of bite, can extract through this kind of method. However, the method has higher requirements on the skill level of operators knocking the copper bars, and can only prejudge the knocking direction by experience, otherwise, the knocking direction is tighter and tighter, and the pulling-out is not facilitated. Meanwhile, the more the end, the more accurate the knocking strength control requirement is, otherwise, the too violent force is exerted, so that the pin bush is easy to smash and fly, and personnel injury is caused.
2. The pin bush is taken by using the three-jaw puller, so that the pin bush is easy to damage, and the working efficiency is low. The pin bush with serious jamming and corrosion can be disassembled by means of the three-jaw puller, but because the contact area of each jaw and the pin bush is small, the stress is concentrated, the pin bush is easy to damage, the service life of the pin bush is shortened, the acting force of a single lead screw is concentrated, the labor intensity is high during the disassembly, and the extraction efficiency is low.
Disclosure of Invention
The invention provides a tool and a method for pulling out a bolt pin sleeve of a large shaft and a rotating wheel coupling pin of a water turbine, which aim to achieve the aim of convenient disassembly.
The technical scheme adopted by the invention for solving the technical problems is as follows: a kind of hydraulic turbine main shaft and runner shaft coupling pin bolt pin bushing extracting tool, including: the flange plate is provided with a connecting through hole and a threaded through hole along the axial direction, and the connecting through hole can be matched and connected with a lifting hole bolt on the pin bush to be disassembled; the jackscrew is connected with the screw thread through-hole cooperation, and the one end of jackscrew can be with the terminal surface butt of hydraulic turbine main shaft, and the other end of jackscrew is for revolving the end of twisting, and revolves the end of twisting and place in the outside of screw thread through-hole.
Furthermore, the connecting through holes are uniformly distributed along the circumferential direction of the flange plate at intervals, and the connecting through holes can be matched and connected with the lifting hole bolts on the pin bush to be disassembled in a one-to-one correspondence mode.
Furthermore, the plurality of thread through holes are uniformly distributed along the circumferential direction of the flange plate at intervals, and the distance between the axis of each thread through hole and the axis of the flange plate is greater than the distance between the axis of each connecting through hole and the axis of the flange plate.
Further, the distance between the axis of each threaded through hole and the axis of the flange plate is 110mm to 120 mm.
Further, the distance between the axis of each connecting through hole and the axis of the flange plate is 70mm to 80 mm.
Furthermore, one end of the jackscrew is a spherical end.
Furthermore, the tool for pulling out the bolt pin sleeve of the large shaft of the water turbine and the rotating wheel connecting shaft pin bolt further comprises a backing plate which is arranged between the other end of the jackscrew and the end surface of the large shaft of the water turbine.
Furthermore, the backing plate is of a rectangular structure, and the hardness of the backing plate is smaller than that of the end face of the large shaft of the water turbine.
The invention also provides a method for pulling out the pin sleeve of the pin bolt of the large shaft and the rotating wheel coupling pin of the water turbine, which is operated by adopting the tool for pulling out the pin sleeve of the pin bolt of the large shaft and the rotating wheel coupling pin of the water turbine, and comprises the following steps: step one, connecting a plurality of connecting through holes with lifting hole bolts on a pin bush to be disassembled in a one-to-one corresponding matching manner; step two, a jackscrew is arranged in each threaded through hole in a penetrating manner, and one end of the jackscrew is abutted against the end face of the large shaft of the water turbine; and step three, screwing the jackscrew to separate the pin bush to be disassembled from the large shaft of the water turbine.
Further, the third step is specifically: the travel distance of each jackscrew is kept consistent through ruler measurement, so that the pin bush to be disassembled is separated from the large shaft of the water turbine.
The invention has the advantages that the pin bush to be disassembled is not easy to damage, the experience requirement of operators is not high, and only a spanner or an electric spanner needs to be operated to screw the jackscrew after the device is assembled. Compared with the mode in the prior art, the requirement of the embodiment on the operation site is reduced, the personal safety can be effectively guaranteed, and the purpose of convenient disassembly is achieved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is an assembly schematic of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a flange plate according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a jack screw according to an embodiment of the present invention;
FIG. 4 is a schematic top view of a backing plate according to an embodiment of the present invention;
FIG. 5 is a schematic side view of a pad according to an embodiment of the present invention.
Reference numbers in the figures: 10. a flange plate; 11. a connecting through hole; 12. a threaded through hole; 20. carrying out top thread; 30. a backing plate.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 5, the embodiment of the invention provides a pulling tool for a bolt sleeve of a large shaft and runner joint pin of a water turbine, which comprises a flange plate 10 and a jackscrew 20. The flange plate 10 is provided with a connecting through hole 11 and a threaded through hole 12 along the axial direction, and the connecting through hole 11 can be connected with a lifting hole bolt on the pin bush to be disassembled in a matched mode. The jackscrew 20 is connected with the screw through hole 12 in a matching manner, one end of the jackscrew 20 can be abutted against the end surface of the large shaft of the water turbine, and the other end of the jackscrew 20 is a screwing end which is arranged on the outer side of the screw through hole 12.
The embodiment of the invention is not easy to damage the pin bush to be disassembled, has low experience requirement on operators, and only needs to operate a wrench or an electric wrench to screw the jackscrew 20 after the device is assembled. Compared with the mode in the prior art, the requirement of the embodiment on the operation site is reduced, the personal safety can be effectively guaranteed, and the purpose of convenient disassembly is achieved.
Preferably, connect the through-hole 11 for a plurality of, along the circumference interval equipartition of ring flange 10, and a plurality of connect the through-hole 11 can with wait to dismantle the lifting hole bolt one-to-one cooperation connection on the cotter. Set up a plurality of connect the via hole 11 and can be connected with a plurality of lewis hole bolt one-to-one to increase flange 10 and the stability of being connected of waiting to dismantle the guide, reduce the atress of single lewis hole bolt, can not lead to personnel to be injured because of lewis hole bolt collapses absolutely in order to guarantee to dismantle the in-process.
Simultaneously, set up a plurality of connect the through-hole 11 and can be with the power evenly distributed who acts on the pin bush, can effectively prevent because the radial force that the pin bush warp the production for it is easier that the pin bush breaks away from the bolt hole.
As shown in fig. 2, the plurality of threaded through holes 12 are uniformly spaced along the circumferential direction of the flange 10, and the distance between the axis of each threaded through hole 12 and the axis of the flange 10 is greater than the distance between the axis of each connecting through hole 11 and the axis of the flange 10. The plurality of threaded through holes 12 are arranged, so that the pin bush can be ensured to be in horizontal movement all the time in the movement process, and the pin bush cannot be damaged due to jamming caused by deflection.
In this embodiment, the number of the connecting through holes 11 and the number of the threaded through holes 12 are three, and the three connecting through holes 11 are uniformly distributed on the circumference of the same radius at intervals. The three threaded through holes 12 are uniformly distributed on the circumference with the same radius at intervals, and the radius of the circumference where the threaded through holes 12 are located is larger than that of the circumference where the connecting through holes 11 are located.
Specifically, the distance between the axis of each threaded through hole 12 and the axis of the flange plate 10 is 110mm to 120 mm. The distance between the axis of each connecting through hole 11 and the axis of the flange plate 10 is 70mm to 80 mm. In this embodiment, the flange plate 10 is made of No. 45 steel, and has a thickness of 30mm and a diameter of 280 mm. Evenly open phi 15's connect the through-hole 11 apart from ring flange 10 center 75mm department, evenly distributed three M30's screw through-hole 12 apart from center 115mm department, through the jackscrew 20 effect of three equipartition, can make the round pin cover atress even to drive the round pin cover and move toward the direction of extracting.
During operation, the travelling distances of the top threads 20 in the three threaded through holes 12 need to be kept consistent, and during specific operation, measurement can be carried out through a ruler, so that the flange plate 10 is always in a parallel moving state, and further, the pin sleeves are prevented from deflecting.
Preferably, the top thread 20 in this embodiment is made of 45 # steel, and plays a role in positioning and fastening, and the bottom of one end of the top thread 20 is made into a spherical surface with a radius of 12mm, so that the top thread 20 receives a uniform reaction force in the screwing process, and the spherical surface has no sharp point, and has a protective effect on the abutting position of the top thread 20.
As shown in fig. 4 and 5, the tool for pulling out the pin sleeve of the pin bolt of the large shaft and the runner joint pin of the water turbine in the embodiment of the invention further comprises a backing plate 30 which is arranged between the other end of the jackscrew 20 and the end surface of the large shaft of the water turbine. The backing plate 30 is of a rectangular structure, and the hardness of the backing plate 30 is smaller than that of the end face of the large shaft of the water turbine. In this embodiment, the backing plate 30 is made of 45 # steel, the thickness is 20mm, and the backing plate 30 plays a supporting role and can protect the end face of the flange 10. To ensure accurate positioning, the tie plate 30 may be provided with an arc-shaped groove that cooperates with the jackscrew 20 to accurately position and prevent the tie plate 30 from shifting.
In this embodiment, there may be a plurality of tie plates 30, and one tie plate 30 may be disposed at each jackscrew 20 to protect the end surface of the large shaft of the water turbine.
It should be noted that, according to the present embodiment, the size can be changed according to the field requirement, the processing cost is not high, the completion degree of the detached pin bush is high, the processing is convenient for continuous use, the cleaning processing time is also saved, the field detachment work efficiency is high, and compared with the simple methods such as breaking and detaching, the cost and the construction period are effectively controlled. In addition, the device of the embodiment is simple and practical, can be flexibly mastered, and can be skillfully applied by personnel with certain mechanical foundation.
The invention also provides a method for pulling out the pin sleeve of the pin bolt of the large shaft and the rotating wheel coupling pin of the water turbine, which is operated by adopting the tool for pulling out the pin sleeve of the pin bolt of the large shaft and the rotating wheel coupling pin of the water turbine, and comprises the following steps:
step one, correspondingly connecting a plurality of connecting through holes 11 with lifting hole bolts on a pin bush to be disassembled one by one so as to fix a flange plate 10 and the pin bush;
step two, a jackscrew 20 is arranged in each threaded through hole 12 in a penetrating manner, and one end of the jackscrew 20 is abutted against the end face of the large shaft of the water turbine;
and step three, screwing the jackscrew 20 to separate the pin bush to be disassembled from the large shaft of the water turbine.
Preferably, the second step may be manually screwing the top thread 20 onto the backing plate 30, so that the top thread 20 is pressed against the backing plate 30.
The third step is specifically as follows: the three top screws 20 are adjusted to be kept in the same plane, then the three top screws 20 are uniformly screwed, and the travel distance of each top screw 20 is kept consistent through ruler measurement, so that the pin bush to be disassembled is separated from the large shaft of the water turbine.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects: the embodiment of the invention is not easy to damage the pin bush to be disassembled, has low experience requirement on operators, and only needs to operate a wrench or an electric wrench to screw the jackscrew 20 after the device is assembled. Compared with the mode in the prior art, the requirement of the embodiment on the operation site is reduced, the personal safety can be effectively guaranteed, and the purpose of convenient disassembly is achieved.
The above description is only exemplary of the invention and should not be taken as limiting the scope of the invention, so that the invention is intended to cover all modifications and equivalents of the embodiments described herein. In addition, the technical features, the technical schemes and the technical schemes can be freely combined and used.
Claims (10)
1. The utility model provides a instrument is extracted to hydraulic turbine macroaxis and runner coupling pin bolt pin bush which characterized in that includes:
the flange plate (10) is provided with a connecting through hole (11) and a threaded through hole (12) along the axial direction, and the connecting through hole (11) can be matched and connected with a lifting hole bolt on the pin bush to be disassembled;
the jackscrew (20) is connected with the cooperation of screw through-hole (12), and the one end of jackscrew (20) can be with the terminal surface butt of hydraulic turbine major axis, and the other end of jackscrew (20) is for revolving the end soon, just revolve the outside of twisting the end and arranging screw through-hole (12) in.
2. The extracting tool for the bolt pin bush of the large shaft and rotating wheel coupling pin of the water turbine as claimed in claim 1, wherein a plurality of connecting through holes (11) are uniformly distributed along the circumferential direction of the flange plate (10) at intervals, and the plurality of connecting through holes (11) can be matched and connected with the hanging hole bolts on the pin bush to be disassembled in a one-to-one correspondence manner.
3. The extracting tool for the bolt pin bush of the pin of the large shaft and runner coupling of the water turbine as claimed in claim 2, wherein the plurality of threaded through holes (12) are uniformly distributed at intervals along the circumferential direction of the flange (10), and the distance between the axis of each threaded through hole (12) and the axis of the flange (10) is greater than the distance between the axis of each connecting through hole (11) and the axis of the flange (10).
4. The tool for pulling out the pin bolt sleeve of the large shaft and runner coupling of the water turbine as claimed in claim 3, wherein the distance between the axis of each threaded through hole (12) and the axis of the flange plate (10) is 110mm to 120 mm.
5. The extraction tool for the pin bolt sleeves of the large shaft and runner coupling of the water turbine as claimed in claim 4, wherein the distance between the axis of each connecting through hole (11) and the axis of the flange plate (10) is 70mm to 80 mm.
6. The tool for extracting the pin bolt sleeve of the large shaft and runner coupling of the water turbine as claimed in claim 1, wherein one end of the jackscrew (20) is a spherical end.
7. The tool for extracting the pin bolt bush of the large shaft and runner coupling of the water turbine as claimed in claim 1, wherein the tool for extracting the pin bolt bush of the large shaft and runner coupling of the water turbine further comprises a backing plate (30) disposed between the other end of the jackscrew (20) and the end surface of the large shaft of the water turbine.
8. The extracting tool for the bolt pin bush of the water turbine main shaft and runner coupling pin according to claim 7, characterized in that the backing plate (30) is of a rectangular structure, and the hardness of the backing plate (30) is less than the hardness of the end face of the water turbine main shaft.
9. A method for extracting a pin sleeve of a pin bolt of a large shaft and a rotating wheel coupling pin of a water turbine, which is operated by the tool for extracting the pin sleeve of the pin bolt of the large shaft and the rotating wheel coupling pin of the water turbine as claimed in any one of claims 3 to 8, and is characterized by comprising the following steps:
step one, connecting a plurality of connecting through holes (11) with lifting hole bolts on a pin bush to be disassembled in a one-to-one corresponding matching manner;
secondly, a jackscrew (20) is arranged in each threaded through hole (12) in a penetrating manner, and one end of the jackscrew (20) is abutted against the end face of the large shaft of the water turbine;
and thirdly, screwing a jackscrew (20) to separate the pin bush to be disassembled from the water turbine main shaft.
10. The method for pulling out the bolt pin sleeve of the large shaft and runner joint pin of the water turbine as claimed in claim 9, wherein the third step is specifically as follows: the travel distance of each jackscrew (20) is kept consistent through ruler measurement so as to separate the pin bush to be disassembled from the large shaft of the water turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110387932.6A CN113027657A (en) | 2021-04-12 | 2021-04-12 | Tool and method for pulling out pin bolt pin bush of pin of large shaft and rotating wheel coupling of water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110387932.6A CN113027657A (en) | 2021-04-12 | 2021-04-12 | Tool and method for pulling out pin bolt pin bush of pin of large shaft and rotating wheel coupling of water turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113027657A true CN113027657A (en) | 2021-06-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110387932.6A Pending CN113027657A (en) | 2021-04-12 | 2021-04-12 | Tool and method for pulling out pin bolt pin bush of pin of large shaft and rotating wheel coupling of water turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113027657A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113977253A (en) * | 2021-11-29 | 2022-01-28 | 广东华电韶关热电有限公司 | Rapid turbine coupling bolt disassembling tool and using method |
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| CN209919791U (en) * | 2019-03-29 | 2020-01-10 | 华能澜沧江水电股份有限公司 | Extracting tool for coupling bolt pin bush of generator set |
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2021
- 2021-04-12 CN CN202110387932.6A patent/CN113027657A/en active Pending
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|---|---|---|---|---|
| CN2747025Y (en) * | 2004-06-25 | 2005-12-21 | 神华集团有限责任公司 | Apparatus for disassembling axle pin |
| CN2832439Y (en) * | 2005-10-18 | 2006-11-01 | 郭爱华 | Crank pin stripper of pumping unit |
| US20100095500A1 (en) * | 2008-08-28 | 2010-04-22 | Tony Whitaker | Injector sleeve removal tool |
| CN204283282U (en) * | 2014-11-10 | 2015-04-22 | 中国石油天然气股份有限公司 | Decentralized wellhead provision for disengagement |
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| CN107900974A (en) * | 2017-12-28 | 2018-04-13 | 中国石油天然气第六建设有限公司 | Large and medium-sized bearing of asynchronous, axle sleeve draw-off gear and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113977253A (en) * | 2021-11-29 | 2022-01-28 | 广东华电韶关热电有限公司 | Rapid turbine coupling bolt disassembling tool and using method |
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Application publication date: 20210625 |