CN109250619A - The safe hoisting tool of large-scale Computation of Kaplan Turbine Crosshead and its lifting technique - Google Patents
The safe hoisting tool of large-scale Computation of Kaplan Turbine Crosshead and its lifting technique Download PDFInfo
- Publication number
- CN109250619A CN109250619A CN201811349004.5A CN201811349004A CN109250619A CN 109250619 A CN109250619 A CN 109250619A CN 201811349004 A CN201811349004 A CN 201811349004A CN 109250619 A CN109250619 A CN 109250619A
- Authority
- CN
- China
- Prior art keywords
- crosshead
- support plate
- sunpender
- web
- screw rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Hydraulic Turbines (AREA)
Abstract
The present invention relates to a kind of safe hoisting tool of large size Computation of Kaplan Turbine Crosshead and its lifting techniques, its medium-and-large-sized safe hoisting tool of Computation of Kaplan Turbine Crosshead, it is characterized by comprising be located at the support plate of crosshead lower surface and wear the sunpender of crosshead centre bore, the lower end of the sunpender passes through support plate and is locked by bolt, the upper end of the sunpender has lifting hole(eyelet), the even circumferential of the support plate is laid with multiple positional punches, the screw rod that threaded upper ends are fixed on web is equipped in the positional punch, the screw rod plays guiding role.Package unit of the present invention can effectively prevent crosshead bias to topple, the generation of accident prevention.
Description
Technical field:
The present invention relates to a kind of safe hoisting tool of large size Computation of Kaplan Turbine Crosshead and its lifting techniques.
Background technique:
Flows below Shuikou Hydro-power Station undertakes Fujian or even China as the current maximum axial-flow rotary propeller type turbine-generator units of single-machine capacity in the world
" black starting-up " electricity of the vital tasks such as peak-frequency regulation, emergency duty, the Min River flood control flood control navigation of eastern power grid and Fujian Electric Power Network
Source point；Seven units are in succession in 1993 to 1996 power generations, and unit is since operation, due to the particularity of mouth of a river unit,
It is inexperienced in terms of design, manufacture, installation, maintenance, operation and maintenance to use for reference, it runs and overhauls from recent two decades or so
From the point of view of, 7 years maintenance time between overhauls of mouth of a river unit, maintenance emphasis is concentrated mainly on rotary wheel of water turbine, some critical great scarce
It falls into, expansion property overhaul total construction period is 100 days to unit every time, and wherein runner part is overhauled 40 days, puts into a large amount of human and material resources.By
In the largest movable propeller turbine of Flows below Shuikou Hydro-power Station, design, maintenance and initial operating stage do not have it is any can experience for reference, one
Being related to maintenance aspect tooling consideration has deficient week place.
Movable propeller turbine runner crosshead connects runner bucket and piston rod, be the type core equipment it
One, installation and maintenance reliably lift by crane facility without Special safety, and lifting operation frame is water-turbine unit and overhauled
The maximum process of operating risk in journey, Flows below Shuikou Hydro-power Station crosshead weigh 16.5 tons, previous to overhaul, first by the runner of 305 Kg that weighs
Piston rod snap ring is placed on crosshead, and spot welding is fixed, and using steel wire penetrating crosshead centre bore, is fixed on lifting chuck
On.Then it is lifted using bridge machine.Crosshead is dish configuration, only central point stress, is easy to happen rollover.Therefore, it is grasping
Make the cucurbit that frame outer edge arranges 33 tons.Cucurbit is only used as Auxiliary support, but there are problems that unbalance stress during lifting by crane,
It is likely to result in cucurbit to break, crosshead then occurs and topples.Service personnel works at crosshead edge during lifting, once
Crosshead, which topples, will cause serious personal injury, and during lifting, cucurbit chain breakage just once occurred, and crosshead is toppled over,
It does not topple completely at that time fortunately, does not cause personal injury, but there are very big security risks.
Summary of the invention:
In view of the deficiencies in the prior art, technical problem to be solved by the invention is to provide a kind of large-scale movable propeller turbines
The safe hoisting tool of crosshead, the safe hoisting tool simple structure and reasonable design of the large size Computation of Kaplan Turbine Crosshead,
Be conducive to improve the safety of lifting.
In order to solve the above-mentioned technical problem,
The technical scheme is that
The safe hoisting tool of large size Computation of Kaplan Turbine Crosshead of the invention, it is characterised in that: including being located under crosshead
The support plate on surface and the sunpender for wearing crosshead centre bore, the lower end of the sunpender pass through support plate and are locked by bolt, institute
The upper end for stating sunpender has lifting hole(eyelet), and the even circumferential of the support plate is laid with multiple positional punches, wears in the positional punch
It is fixed on the screw rod on web equipped with threaded upper ends, the screw rod plays guiding role.
Further, above-mentioned screw rod includes upper spiro rod section and lower spiro rod section, and upper spiro rod section with upper part screw thread by connecting
The swivel nut connect is fixed on web, has internal screw thread slot in the lower end body of upper spiro rod section, and the upper end of lower spiro rod section is equipped with
The screw head being threadedly coupled with internal screw thread slot.
Further, above-mentioned swivel nut includes stepped screw head, has external screw thread on the miner diameter end of ladder-like screw head, this is outer
Screw thread is threadedly coupled fixation with the internal thread hole that web is equipped with, and the inner hole of ladder-like screw head has and upper spiro rod section upper end
The internal screw thread of threaded connection.
Further, 6 positional punches for being used to wear screw rod are evenly equipped in above-mentioned support plate, it is also uniformly distributed in support plate
There are 6 kidney-shaped perforation.
Large size Computation of Kaplan Turbine Crosshead safety lifting technique of the invention, it is characterised in that: the big profile shaft stream
The safe hoisting tool of Kaplan turbine crosshead includes being located at the support plate of crosshead lower surface and wearing crosshead centre bore
Sunpender, the lower end of the sunpender passes through support plate and locked by bolt, and the upper end of the sunpender has lifting hole(eyelet), the support plate
Even circumferential be laid with multiple positional punches, the spiral shell that threaded upper ends are fixed on web is equipped in the positional punch
Bar, the screw rod play guiding role；Steps are as follows for specific lifting, 1) support plate is put into crosshead bottom, meanwhile, it is operating
Frame hang in front of crosshead bottom surface and be located at support plate outer circumference direction be evenly arranged three support bases, be used to support operation
Frame；2) 6 swivel nuts are mounted on web；3) sunpender is passed through to the centre bore of crosshead, lower end nut check from top to bottom；
4) corresponding shackle is connected by the central duct of suspension hook steel wire penetrating web with sunpender by 50 tons of workshop bridge machines
It connects, then accesses screw rod in swivel nut, and pass through corresponding 6 positional punches in support plate；5) workshop bridge machine suspension hook slowly rises
Lift operations frame observes its center of gravity and eccentric situation, guarantees the correct designated mounting position for reaching web of its safety, completes primary
Complete assembling process.
In implementation process, using 6 sets of dedicated segmented screws, crosshead is smoothly risen and is raised to rigging position, installation is just
Behind position, screw rod is unloaded next section, tightens further support of the nut as crosshead, package unit can effectively prevent crosshead
Bias is toppled, the generation of accident prevention, and equally in disassembly, screw rod can also be with its guiding role.
By field conduct, compared with routine techniques, reach following effect:
1) it is not glanced off in the lifting of runner crosshead, relatively lifting by crane technique in the past and once glancing off leads to cucurbit chain breakage more
Safety；
2) staff keeps without the moment and observes whether crosshead is in horizontal；
3) save 3 manpowers and pull chain block；
4) the crosshead lifting time is reduced to 1 hour by 5 hours.
Large size Computation of Kaplan Turbine Crosshead of the invention lifts by crane safely the technique effective guarantee person of operating personnel
Safety, while reducing operation number and time.
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
Detailed description of the invention:
Fig. 1 is the main view profile construction schematic diagram before present invention lifting；
Fig. 2 is the main view profile construction schematic diagram when present invention is lifted by crane and is installed；
Fig. 3 is the profile construction schematic diagram of swivel nut；
Fig. 4 is support plate main view；
Fig. 5 is the drawing in side sectional elevation for mentioning 4.
Specific embodiment:
To make the foregoing features and advantages of the present invention clearer and more comprehensible, special embodiment below, and cooperate attached drawing, make specifically
It is bright as follows.
The large size safe hoisting tool of Computation of Kaplan Turbine Crosshead of the invention includes the branch for being located at 1 lower surface of crosshead
Support plate 2 and the sunpender 4 for wearing 1 centre bore 3 of crosshead, the lower end of the sunpender 4 passes through support plate and is locked by bolt 5, described
The upper end of sunpender 4 has lifting hole(eyelet), and the even circumferential of the support plate is laid with multiple positional punches 6, wears in the positional punch 6
It is fixed on the screw rod 8 on web 7 equipped with threaded upper ends, the screw rod 8 plays guiding role.4 top of sunpender has one to have
The connector of perforation, is equipped with gasket 16 between connector and crosshead 1,4 lower part of sunpender is screw rod.
One of embodiment is also fixed as subsequent suspension and is used to make screw rod not only act as guiding role, on
Stating screw rod 8 includes upper spiro rod section 801 and lower spiro rod section 802, and upper spiro rod section is fixed by the swivel nut 9 being threadedly coupled with upper part
On web 10, there is internal screw thread slot, the upper end of lower spiro rod section is equipped with and internal thread groove in the lower end body of upper spiro rod section
The screw head that hole is threadedly coupled, in lifting, upper spiro rod section 801 and lower spiro rod section 802 are spirally connected fixation, and when lifting by crane and be installed
Afterwards, lower spiro rod section 802 is removed, blending bolt locks the lower end of upper spiro rod section 801, using the further support as crosshead.
Further, in order to design rationally, above-mentioned swivel nut includes stepped screw head, is had on the miner diameter end of ladder-like screw head
There is external screw thread 12, which is threadedly coupled fixation with the internal thread hole that web is equipped with, and the inner hole of ladder-like screw head has
The internal screw thread 13 being threadedly coupled with upper spiro rod section upper end.
Further, in order to design rationally, keep 1 overall weight of crosshead lighter, 6 use are evenly equipped in above-mentioned support plate 2
In the positional punch 6 for wearing screw rod 8,6 kidney-shaped perforation 11 are also evenly equipped in support plate, the design of kidney-shaped perforation 11 makes to prop up
Support plate forms lighter weight.
Large size Computation of Kaplan Turbine Crosshead safety lifting technique of the invention, the large size movable propeller turbine
The safe hoisting tool of crosshead includes the support plate for being located at crosshead lower surface and the sunpender for wearing crosshead centre bore, described to hang
The lower end of bar passes through support plate and is locked by bolt, and the upper end of the sunpender has lifting hole(eyelet), the even circumferential cloth of the support plate
Equipped with multiple positional punches, the screw rod that threaded upper ends are fixed on web is equipped in the positional punch, the screw rod rises
To guiding role；Steps are as follows for specific lifting, 1) support plate 14 is put into crosshead bottom, meanwhile, before crosshead is hung in
Crosshead bottom surface and be located at support plate outer circumference direction be evenly arranged three support bases, be used to support crosshead；2) by 6 spiral shells
Set is mounted on web；3) sunpender is passed through to the centre bore of crosshead, lower end nut check from top to bottom；4) pass through one 50
Corresponding shackle is connected, then by spiral shell by ton workshop bridge machine 15 by the central duct of suspension hook steel wire penetrating web with sunpender
Bar accesses in swivel nut, and passes through corresponding 6 positional punches in support plate；5) the slow raising crosshead of workshop bridge machine suspension hook is seen
Its center of gravity and eccentric situation are examined, guarantees the correct designated mounting position for reaching web of its safety, completion was once completely assembled
Journey.
In implementation process, using 6 sets of dedicated segmented screws, crosshead is smoothly risen and is raised to rigging position, installation is just
Behind position, screw rod is unloaded next section, tightens support of the nut as crosshead, package unit can effectively prevent crosshead bias to incline
It covers, the generation of accident prevention, equally in disassembly, screw rod can also be with its guiding role.
By field conduct, compared with routine techniques, reach following effect:
1) it is not glanced off in the lifting of runner crosshead, relatively lifting by crane technique in the past and once glancing off leads to cucurbit chain breakage more
Safety；
2) staff keeps without the moment and observes whether crosshead is in horizontal；
3) save 3 manpowers and pull chain block；
4) the crosshead lifting time is reduced to 1 hour by 5 hours.
Large size Computation of Kaplan Turbine Crosshead of the invention lifts by crane safely the technique effective guarantee person of operating personnel
Safety, while reducing operation number and time.
The present invention is not limited to above-mentioned preferred forms, all equivalent changes done according to scope of the present invention patent with
Modification, is all covered by the present invention.
Claims (5)
1. a kind of safe hoisting tool of large size Computation of Kaplan Turbine Crosshead, it is characterised in that: including being located under crosshead
The support plate on surface and the sunpender for wearing crosshead centre bore, the lower end of the sunpender pass through support plate and are locked by bolt, institute
The upper end for stating sunpender has lifting hole(eyelet), and the even circumferential of the support plate is laid with multiple positional punches, wears in the positional punch
It is fixed on the screw rod on web equipped with threaded upper ends, the screw rod plays guiding role.
2. the safe hoisting tool of large size Computation of Kaplan Turbine Crosshead according to claim 1, it is characterised in that: institute
Stating screw rod includes upper spiro rod section and lower spiro rod section, and upper spiro rod section is fixed on web by the swivel nut being threadedly coupled with upper part
On, there is internal screw thread slot, the upper end of lower spiro rod section is equipped with to be threadedly coupled with internal screw thread slot in the lower end body of upper spiro rod section
Screw head.
3. the safe hoisting tool of large size Computation of Kaplan Turbine Crosshead according to claim 2, it is characterised in that: institute
Stating swivel nut includes stepped screw head, has external screw thread on the miner diameter end of ladder-like screw head, which is equipped with web
Internal thread hole be threadedly coupled and fix, the inner hole of ladder-like screw head has the internal screw thread being threadedly coupled with upper spiro rod section upper end.
4. the safe hoisting tool of large size Computation of Kaplan Turbine Crosshead according to claim 2, it is characterised in that: institute
It states and is evenly equipped with 6 in support plate for wearing the positional punch of screw rod, 6 kidney-shaped perforation are also evenly equipped in support plate.
5. a kind of large size Computation of Kaplan Turbine Crosshead safety lifting technique, it is characterised in that: the large size axial-flow rotary propeller
The safe hoisting tool of formula hydraulic turbine crosshead includes being located at the support plate of crosshead lower surface and wearing hanging for crosshead centre bore
Bar, the lower end of the sunpender pass through support plate and are locked by bolt, and the upper end of the sunpender has lifting hole(eyelet), the circle of the support plate
Week it is uniformly distributed have multiple positional punches, the screw rod that threaded upper ends are fixed on web is equipped in the positional punch, institute
It states screw rod and plays guiding role；Steps are as follows for specific lifting, 1) support plate is put into crosshead bottom, meanwhile, it is hung in crosshead
Three support bases are evenly arranged in crosshead bottom surface before entering and positioned at support plate outer circumference direction, are used to support crosshead；2)
6 swivel nuts are mounted on web；3) sunpender is passed through to the centre bore of crosshead, lower end nut check from top to bottom；4) lead to
50 tons of workshop bridge machines are crossed by the central duct of suspension hook steel wire penetrating web, corresponding shackle are connected with sunpender, so
Screw rod is accessed in swivel nut afterwards, and passes through corresponding 6 positional punches in support plate；5) workshop bridge machine suspension hook slowly plays lift operations
Frame observes its center of gravity and eccentric situation, guarantees the correct designated mounting position for reaching web of its safety, completes primary complete dress
With process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811349004.5A CN109250619A (en) | 2018-11-13 | 2018-11-13 | The safe hoisting tool of large-scale Computation of Kaplan Turbine Crosshead and its lifting technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811349004.5A CN109250619A (en) | 2018-11-13 | 2018-11-13 | The safe hoisting tool of large-scale Computation of Kaplan Turbine Crosshead and its lifting technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109250619A true CN109250619A (en) | 2019-01-22 |
Family
ID=65043564
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811349004.5A Pending CN109250619A (en) | 2018-11-13 | 2018-11-13 | The safe hoisting tool of large-scale Computation of Kaplan Turbine Crosshead and its lifting technique |
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| Country | Link |
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| CN (1) | CN109250619A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1144286A (en) * | 1997-07-30 | 1999-02-16 | Tokyo Electric Power Co Inc:The | Vertical shaft water turbine or disassembly method of pump turbine |
| CN202379593U (en) * | 2011-12-28 | 2012-08-15 | 重庆水轮机厂有限责任公司 | Runner hanging structure of large-sized impulse water turbine |
| CN203740852U (en) * | 2013-12-24 | 2014-07-30 | 重庆水轮机厂有限责任公司 | Impact runner hoisting and overturning tool for hydro-generator |
| CN104176619A (en) * | 2013-05-22 | 2014-12-03 | 东方电气集团东方电机有限公司 | Axial-flow kaplan turbine rotating-wheel hoisting and suspension method |
| CN106672785A (en) * | 2017-01-19 | 2017-05-17 | 雅砻江流域水电开发有限公司 | Movable propeller turbine runner single hook turning method |
| CN106744249A (en) * | 2017-01-19 | 2017-05-31 | 雅砻江流域水电开发有限公司 | Movable propeller turbine runner single hook equipment for supporting patient with burn |
| CN108100848A (en) * | 2017-12-28 | 2018-06-01 | 国网福建省电力有限公司 | The safe hoisting tool of large-scale movable propeller turbine runner crosshead and lifting technique |
-
2018
- 2018-11-13 CN CN201811349004.5A patent/CN109250619A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1144286A (en) * | 1997-07-30 | 1999-02-16 | Tokyo Electric Power Co Inc:The | Vertical shaft water turbine or disassembly method of pump turbine |
| CN202379593U (en) * | 2011-12-28 | 2012-08-15 | 重庆水轮机厂有限责任公司 | Runner hanging structure of large-sized impulse water turbine |
| CN104176619A (en) * | 2013-05-22 | 2014-12-03 | 东方电气集团东方电机有限公司 | Axial-flow kaplan turbine rotating-wheel hoisting and suspension method |
| CN203740852U (en) * | 2013-12-24 | 2014-07-30 | 重庆水轮机厂有限责任公司 | Impact runner hoisting and overturning tool for hydro-generator |
| CN106672785A (en) * | 2017-01-19 | 2017-05-17 | 雅砻江流域水电开发有限公司 | Movable propeller turbine runner single hook turning method |
| CN106744249A (en) * | 2017-01-19 | 2017-05-31 | 雅砻江流域水电开发有限公司 | Movable propeller turbine runner single hook equipment for supporting patient with burn |
| CN108100848A (en) * | 2017-12-28 | 2018-06-01 | 国网福建省电力有限公司 | The safe hoisting tool of large-scale movable propeller turbine runner crosshead and lifting technique |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20190122 |