CN107804785A - A kind of generator unit stator lifting steering and its method - Google Patents
A kind of generator unit stator lifting steering and its method Download PDFInfo
- Publication number
- CN107804785A CN107804785A CN201711214103.8A CN201711214103A CN107804785A CN 107804785 A CN107804785 A CN 107804785A CN 201711214103 A CN201711214103 A CN 201711214103A CN 107804785 A CN107804785 A CN 107804785A
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- China
- Prior art keywords
- generator unit
- unit stator
- steel wire
- bridge
- wire rope
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Classifications
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- 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
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C17/00—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
The present invention discloses a kind of generator unit stator lifting steering and its method, the generator unit stator lifting steering includes the bridge-type double beam crane (A) of 2 flexible connections, 1 special homemade to lift shoulder pole girder (B), fixed pulley assembly, movable pulley component, steel wire rope component and 1 set of lifting steering assistance device, the fixed pulley assembly is included in original fixed pulley (A1) by the main hoisting mechanism of every bridge-type double beam crane and in each increased 2 additional fixed pulley (A2) in its both sides, the movable pulley component includes original movable pulley and the other each increased 2 additional movable pulleys (A5) of the main hook (A4) of connection below every bridge-type double beam monkey (A3)；The steel wire rope component includes the main hoisting mechanism steel wire rope passed around again and the hoisting wirerope newly established, by original, " five or five walk ten " repacks " seventy-seven walk 14 " multiplying power into the multiplying power of the main hoisting mechanism steel wire rope, reduces the pulling force that main hoisting mechanism goes out head end.
Description
Technical field
The invention belongs to power construction industry large scale equipment to lift field, is related to a kind of generator unit stator lifting steering
And its method.
Background technology
In power construction engineering, generator unit stator is one of engineering large scale equipment, and the work work of its hoisting engineering is strong
Degree is high, and installation, the workload removed are big, more and more stronger to the dependence of professional tool.
Generator unit stator, which generally requires, to be longitudinally arranged on steam turbine building operating layer platform, and generator unit stator is typically by transporting
Then generator unit stator is unloaded, is rotated by 90 °, lifted in place to access path by wooden handcart axial transport using specific purpose tool.Generate electricity
Machine stator, which is lifted and turned to, traditionally typically two methods, and one kind is hung using Lao Xinge or Double-bridge type double girder crane
Dress, on ground, access path is rotated by 90 °, and then installation is in place, but Lao Xinge lifting input costs are larger, prepare the duration compared with
It is long, and lift and 250t steering suspension hooks are must be equipped with below shoulder pole, the height and hoisting wirerope plus other special hangers
Length, the headroom size of lifting altitude reduce, and ordinary circumstance is difficult to meet lifting and steering demand.Secondly, conventional bridge-type double beam
The hanging device that crane hanging component method is attached on bridge-type double beam crane is more, and weight is larger, two bridge-type double beams of computer room
Crane can not meet that lifting requires.Another method is that ground turns to, and generator unit stator is unloaded to ground first, then adopted
Coordinate hydraulic pressure thruster to be rotated by 90 ° generator unit stator with rotating disk or rail, but this method waste time and energy and limitation very
Greatly, it is necessary to the instrument of specialty and troop.
Therefore, how with reference to rational safe efficient, convenient, the reliable Hoisting Program of field condition formulation, ensureing to pacify
On the premise of complete, the weight of additional load is effectively reduced, stator hoisting is solved and turns to problem, simplify process, so as to shorten the time,
To whole duration important in inhibiting.
The content of the invention
Goal of the invention：In view of the above-mentioned problems existing in the prior art, there is provided a kind of generator unit stator lifting steering and
Its method, hoisting high-efficiency, safety and steady, process is simple, and auxiliary equipment weight is small, without using traditional steering suspension hook, utilizes
Field condition, equipment are with regard to that can complete stator hoisting and turn to task.
Technical scheme：A kind of generator unit stator lifts steering, including the bridge-type double beam crane of 2 flexible connections, 1
Root it is special it is homemade lift shoulder pole girder, fixed pulley assembly, movable pulley component, steel wire rope component and 1 set lifting steering assistance device,
The fixed pulley assembly be included in every bridge-type double beam crane the other original fixed pulley of main hoisting mechanism (main winch) and
In each increased 2 additional fixed pulleys in its both sides, the movable pulley component includes original movable pulley and risen in every bridge-type double beam
Each increased 2 additional movable pulleys by the main hook of connection below heavy-duty machine dolly；The steel wire rope component includes the master passed around again
Hoisting mechanism steel wire rope and the hoisting wirerope newly established, by original, " five or five walk ten " changes the multiplying power of the main hoisting mechanism steel wire rope
" seventy-seven walk 14 " multiplying power is dressed up, reduces the pulling force that main hoisting mechanism goes out head end；The hoisting wirerope includes：2 φ
52mm × 21m jack lines, shoulder pole girder and generator unit stator are lifted for bundling；2 φ 52mm × 12m steel wire ropes, for bundling
Main hook is with lifting shoulder pole girder；4 φ 26mm × 7m steel wire ropes, for hanging additional movable pulley；4 φ 26mm × 6m steel wire ropes,
For hanging additional fixed pulley.
The symmetrical use φ 52mm × 12m steel wire ropes in shoulder pole girder both ends that lift are together with the main hook colligation, together
When main hook by 2 additional movable pulleys setting up by 4 φ 26mm × 7m steel wire ropes and shackle binding hang on it is described lift it is flat
On spreader beam；Generator unit stator is symmetrical to hang on described lift below shoulder pole girder with 2 φ 52mm × 21m jack lines bindings.
The specification of the two-beam bridge bridge-type double beam crane crane is 75/20t, and reinforcement type, girder, which is reinforced, carries energy
Power reaches 100t；
The design load for lifting shoulder pole girder reaches 250t；
The additional movable pulley and additional fixed pulley are 20t simple gate snatch blocks；
If a set of lifting steering assistance device includes 4 5t chain blocks, 4 100t hydraulic jack, dry type
Number wire line shoe, some 35t shackles, some φ 30mm round steel, the spirit level that are Y-50, the chain block determines in generator
Protecting against shock is used when son turns to, and the round steel is used for rolling generator stator, and the wire line shoe is used to press from both sides steel wire rope, the shackle
For being used cooperatively with steel wire rope brachycephaly, the spirit level is used to measure bridge-type double beam crane amount of deflection.
The invention also discloses a kind of generator unit stator to lift forward method, and its flow is as follows：Bridge-type double beam crane is determined
Position → installation adds fixed pulley → installation and adds movable pulley → pass around main hoisting mechanism steel wire rope → bridge-type double beam crane A again
And car → installation lifting lifts shoulder pole girder B → adjustment dolly A3 is positioned → and determines generator unit stator E drop off location → generator
Stator E unloads → by the way of two dolly A3 move toward one anothers, drive generator unit stator E once to turn to 45 ° → adjustment dolly
Move toward one another, bis- 45 ° of steerings of generator unit stator E → adjustment dolly A3 → dolly A3 are formally lifted by crane A3 → two dolly A3 again
Inspections → rise to operating layer → generator unit stator E translations → generator unit stator E just is hung in examination before positioning → life hook inspection → lifting
Position → rigging out → bridge-type double beam crane A systems are recovered.
Beneficial effects of the present invention：The present invention passes through each increase by 2 by 2 75t bridge-type double beam crane hoisting mechanisms
20t fixed pulleys, each 2 20t movable pulleys of increase by main hook, passing around steel wire rope again, " five or five, which walk ten ", repacks that " seventy-seven walk into by former
14 " multiplying power, 200t generator unit stators are lifted, preparation is easy, quick, hoisting high-efficiency, safety and steady；Without using tradition
Steering suspension hook, reduce load weight, dolly do move toward one another i.e. can be achieved generator unit stator be rotated by 90 °, solution determinant steering
Problem；After separate unit bridge-type double beam crane is transformed, its cart (referring to girder and its driving running gear), dolly (are located in
Walking, raising and drive mechanism assembly on cart), main hook (referring to the hook below dolly), auxiliary hook is (below the dolly referred to
Small hook) can also freely work, do not limited by the preparatory stage, do not have above bridge-type double beam crane optional equipment and weight,
The headroom size of stator hoisting lifting altitude is added, expands application；, operation rate of machinery is effectively increased, is reduced
Because of the long-term influence for taking bridge-type double beam crane to other operations；It is simple to lift preparatory process, auxiliary equipment weight reduces, bridge
Formula double girder crane itself disclosure satisfy that peace tears work requirements open, without any mechanical engagement, save mechanical one-shift expense and reduction
The labor intensity of early stage；Gather materials on the spot, make full use of field condition, equipment to complete the lifting of generator unit stator and turn to appoint
Business, reduce the usage amount to special Work tool, reduce engineering cost.
Brief description of the drawings
Fig. 1 is that bridge-type double beam crane of the present invention installs extra pulley additional and passes around construction of wire rope schematic diagram again；
Fig. 2 is two bridge-type double beam Crane Combine structural representations of the invention；
Fig. 3 lifts shoulder pole girder construction scheme of installation for present invention lifting；
Fig. 4 is that generator unit stator of the present invention center in place and dolly position schematic diagram；
Fig. 5 is generator unit stator drop off location schematic top plan view of the present invention；
Fig. 6 is that generator unit stator of the present invention once turns to the position schematic top plan view after 45 °；
Fig. 7 is the secondary position schematic top plan view turned to after 45 ° of generator unit stator of the present invention；
Fig. 8 is that formally raw hook hangs schematic diagram to bridge-type double beam crane of the present invention.
Embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, the present invention is carried out below in conjunction with the accompanying drawings detailed
Thin description.
A kind of generator unit stator lifts steering, including the bridge-type double beam crane A of 2 flexible connections, 1 it is special from
System lift shoulder pole girder B, fixed pulley assembly, movable pulley component, steel wire rope component and 1 set lift by crane steering assistance device, described fixed
Pulley assembly is included in original fixed pulley A1 on main hoisting mechanism (main winch) side of every bridge-type double beam crane and at it
Each increased 2 additional fixed pulley A2 in both sides, the movable pulley component include original movable pulley and in every bridge-type double beam liftings
Each increased 2 additional movable pulley A5 by the main hook A4 of connection below machine dolly A3；The steel wire rope component includes passing around again
Main hoisting mechanism steel wire rope and the hoisting wirerope newly established, " five or five walk by former for the multiplying power of the main hoisting mechanism steel wire rope
Ten " repack " seventy-seven walk 14 " multiplying power into, reduce the pulling force that main hoisting mechanism goes out head end；The hoisting wirerope includes：2
Root φ 52mm × 21m jack line C1, shoulder pole girder B and generator unit stator E are lifted for bundling；2 φ 52mm × 12m steel wire ropes
C2, for bundling main hook A4 and lifting shoulder pole girder B；4 φ 26mm × 7m steel wire rope C3, for hanging additional movable pulley A5；4
φ 26mm × 6m steel wire rope C4, for hanging additional fixed pulley A2.
It is described to lift the symmetrical use φ 52mm × 12m steel wire ropes C2 in shoulder pole girder B both ends with the main hook A4 colligations one
Rise, while the 2 additional movable pulley A5 set up by main hook A4 are hung on by 4 φ 26mm × 7m steel wire ropes C3 and shackle binding
It is described to lift on shoulder pole girder B；Generator unit stator E is symmetrical to hang on the lift with 2 φ 52mm × 21m jack lines C1 bindings
Hang below shoulder pole girder B.
The specification of the two-beam bridge bridge-type double beam crane crane A is 75/20t, and reinforcement type, girder, which is reinforced, carries energy
Power reaches 100t；
The design load for lifting shoulder pole girder B reaches 250t；
The additional fixed pulley A2 and additional movable pulley A5 is 20t simple gate snatch blocks；
If a set of lifting steering assistance device includes 4 5t chain blocks, 4 100t hydraulic jack, dry type
Number wire line shoe, some 35t shackles, some φ 30mm round steel, the spirit level that are Y-50, the chain block determines in generator
Protecting against shock is used when son turns to, and the round steel is used for rolling generator stator, and the wire line shoe is used to press from both sides steel wire rope, the shackle
For being used cooperatively with steel wire rope brachycephaly, the spirit level is used to measure bridge-type double beam crane amount of deflection.
The invention also discloses a kind of generator unit stator to lift forward method, and its flow is as follows：Bridge-type double beam crane A determines
Position → installation adds fixed pulley A2 → installation adds movable pulley A5 → and passes around main hoisting mechanism steel wire rope → bridge-type double beam again
Heavy-duty machine A and car → installation lifting lifts shoulder pole girder B → determine generator unit stator E drop off location → adjustment dolly A3 positioning → hair
Motor stator E unloads → by the way of two dolly A3 move toward one anothers, drive generator unit stator E once to turn to 45 ° → adjustment
Positions of the φ 52mm × 21m jack lines C1 on shoulder pole girder B is lifted, dolly A3 → two dolly A3 move toward one anothers again are adjusted,
Secondary turn to before 45 ° → adjustment dolly A3 → dolly A3 formally lifts by crane positioning → life hook inspection → lifting of generator unit stator tries to hang inspection
Look into → rise rise to operating layer → generator unit stator E translations → generator unit stator E it is in place → rigging out, bridge-type double beam crane A
System is recovered.
The embodiment of detailed process is as follows：
1st, bridge-type double beam crane positions：Barrier cleaning, cleaning are carried out to job site according to the requirement confided a technological secret
After completion, bridge-type double beam crane is positioned temporarily, begins preparing for work.
The 2nd, additional fixed pulley A2, additional movable pulley A5 are installed, pass around steel wire rope again：Two bridge-type double beams are transformed respectively to rise
The main hoisting system of heavy-duty machine, increase by two additional fixed pulley A2 and two additional movable pulley A5 respectively, and pass around steel wire rope again
(shown in Fig. 1), making the multiplying power that passes around of bridge-type double beam crane main hook rope, " five or five, which walk ten " multiplying powers, is changed into that " seventy-seven walk ten from original
Four " multiplying powers, the steel wire rope multiplying power of main winch is changed, to reduce the pulling force that hoist engine goes out head end.According to Fig. 1 institutes
The mode shown carries out transformation and passed around.
3rd, bridge-type double beam Crane Combine：Buffer unit of two bridge-type double beam cranes with respect to binding site is removed,
Bridge-type double girder crane is started, the main hook A4 center distance regulations by two bridge-type double beam cranes are 7900mm, by two bridge-types
Double girder crane is flexibly connected, and (so-called flexible connection refers to be connected with chain block, only controls the distance pulled open, respectively voluntarily
Walk, as long as the distance pulled open can within effective range；If be rigidly connected, such as with channel-section steel directly by two bridge-type double beams
Crane connects, and the distance between such two bridge-type double beam cranes are definite values, if two bridge-type double beam cranes are different
Step starts, and is one walking of a dragging it is difficult to walk, and is flexibly connected and avoids this drawback.), as shown in Figure 2.
4th, installation lifting lifts shoulder pole girder B：Shoulder pole girder B and bridge-type double beam will be lifted with 2 φ 52mmx12m steel wire ropes C2
The main hook A4 colligations of crane together, totally 14 bursts of stress (14 strands be mode that steel wire rope passes around assembly pulley)；Generator unit stator E
Hung on and lifted on shoulder pole girder B with 2 φ 52mmx21m jack lines C1 bindings, totally 14 bursts of stress；The 20t set up adds movable pulley
A5 is hung on and lifted on shoulder pole girder B (as shown in Figure 3) with φ 26mmx7m steel wire ropes C3 and shackle binding.
5th, determine that generator determines E drop off location, the dolly A3 positioning of adjustment bridge-type double beam crane：With generator unit stator
Line on the basis of E centers in place, determine dolly A3 positions；Secondly door (#23-#24 axles access path) the 0m ground subscript in computer room
Generator unit stator E center of unloading is shown, it is determined that unload center when on the basis of generator unit stator E center in place, that is, generate electricity
Machine stator E centre distances A arrange center line 13000mm, distance #23 axle 4750mm, be illustrated in figure 4 generator unit stator E it is in place in
The heart and dolly A3 positioning schematic diagrames.
6th, generator unit stator E unloads：When generator unit stator E is transported to computer room by flat car, position is stopped on request,
Now generator unit stator E transverse center overlaps with lifting shoulder pole girder B, by single φ 52mm × 21m jack lines C1 walk four across
Shoulder pole girder B is lifted, every φ 52mm × 21m jack line C1 pocket hangs over generator unit stator E the same side (left side or right side)
On two joint hinge E1, and ensure set-points of two φ 52mm × 21m jack lines C1 on shoulder pole girder B is lifted respectively with it is a certain
Two joint hinge E1 of side are on same vertical line.After all preparations are ready, two bridge-type double beam crane A while raising,
Stop when generator unit stator E, which rises, to be risen to and leave transport vehicle flat board 200mm completely, check whether hoisting system is normal, confirm nothing
After by mistake, drive away flat car, and generator unit stator E is unloaded to ground and is laid flat.Fig. 5 show generator unit stator drop off location vertical view
Schematic diagram.
7th, by the way of two dolly move toward one anothers, generator unit stator is driven once to turn to 45 °：First by 2 dollies
A3 and generator unit stator E are adjusted on straight line, that is, it is vertical with generator unit stator E longitudinal centre lines to lift shoulder pole girder B, two
Dolly A3 simultaneously raising, by generator unit stator bottom leave ground about 100mm or so stop raising, two dolly A3 respectively along
Respective two-beam type crane A big beam orbit does move toward one another, and drive lifts shoulder pole girder B and slowly rotated, and is suspended on binding
Lift the generator unit stator E below shoulder pole girder B freely to turn to, two dolly A3 are among moving process, two two-beam type liftings
Machine A centre-to-centre spacing gradually finely tunes diminution, until 2 immediate end carriages of bridge-type double beam crane have been drawn close mutually, when 2 dollies
Stop movement when A3 move toward one anothers can not walk, now generator unit stator E completes once to turn to 45 ° or so, generator unit stator E bottoms
Portion is diagonally tensed using 2 5t cucurbits chains.Now 2 dolly A3 while loose hook, ground is dropped down onto by generator unit stator E.Fig. 6 is
Generator unit stator E once turns to the position view after 45 °.
8th, positions of the φ 52mm × 21m jack lines C1 on shoulder pole girder B is lifted, adjustment dolly A3 are adjusted：Releasing lifts flat
φ 52mm × 21m jack line C1 between spreader beam B and generator unit stator E, according to generator unit stator E both ends joint hinge E1 spacing,
Positions of the φ 52mm × 21m jack lines C1 on shoulder pole girder B is lifted is adjusted, its binding position on generator unit stator E is by original
Two dolly A3 are adjusted to suitable position by the homonymy joint hinge position adjustment come to same end joint hinge position, now every
Dolly A3 just with before and after its original position on the contrary, and 2 dolly A3 not on the same line.5t cucurbit chains are released, are hung
At other 2 of generator unit stator E bottoms it is diagonal on and tense, prevent what generator unit stator direct rotating band during lifting from coming to rush
Hit.
9th, two dollies move toward one another again, generator unit stator is secondary to turn to 45 °：Two dolly A3 position and steel wire rope
Gone through after adjustment, after everything is ready, two dolly A3 while raising, when generator unit stator E leaves ground about
100mm or so, stop raising, now slowly unclamp 2 5t cucurbit chains, make generator unit stator E continue to rotate, while 2 small
The slow move toward one anothers of car A3, until 2 dolly A3 are on same straight line, stop raising, now generator unit stator E from
45 ° of rotations, finally by fine setting dolly A3 and bridge-type double beam crane A spacing, generator unit stator E are adjusted in place to 90 °.
Generator unit stator E, which is turned to, to be completed.Fig. 7 is bis- position views turned to after 45 ° of generator unit stator E.
10th, inspection is hung in examination before dolly formally lifts by crane positioning, raw hook inspection, lifting：First to two bridge-type double beam crane A
Crossbeam, additional movable pulley and additional movable pulley, cart, dolly, hoisting system, brakes, safety device, electrical system etc.
Comprehensively checked；Secondly check finish confirm it is errorless after, to generator unit stator E give birth to hook, by single φ during raw hook
52mm × 21m jack lines C1 walks eight, and same root φ 52mm × 21m jack line C1 pockets hang two of same one end (adjusting end or electric end)
On joint hinge E1, and ensure set-points of the φ 52mm × 21m jack lines C1 on shoulder pole girder B is lifted with joint hinge E1 in same vertical line
On, after raw hook finishes, hook up at a slow speed, raising process pays attention to checking binding main hook A4 steel wire rope, is the steel for hanging extra pulley
Cord, jack line etc. stressing conditions.Stop when generator unit stator E is hung into ground about 100mm, crawl is hooked up, bridge is done in off the hook
The retardation test of formula double girder crane, after confirming that braking is good, check generator unit stator E levelness, it is necessary to which confirmation is hung
Stator E is in horizontality after rising, and otherwise ensures that lifting shoulder pole girder B is in horizontal by the main hook A4 adjusted respectively under dolly
State carries.As shown in Figure 8.
11st, rise and rise to operating layer：Confirm it is errorless after, two bridge-type double beam crane A slowly continue raising, raising simultaneously
During keep two bridge-type double beam crane A lifting velocity consistent, and pay attention to observing and ensure generator unit stator E level
State.Stop until generator unit stator E is risen when being raised above steam turbine building 12.6m operating layer barriers 500mm or so, treat stabilization
Afterwards, two bridge-type double beam crane A run to directly over basis and stopped slowly to generator unit stator E basic direction running.
12nd, generator unit stator translation, generator unit stator are in place：After treating stabilization, fine motion adjustment generator unit stator E's is in place
Position, generator unit stator E center line is set to be overlapped with center line in place.Two bridge-type double beam crane A of commander while loose hook, make
Generator unit stator E falls on platen, and finally by adjusting, stator core is in place by end cap, is careful not to clashing and breaking generator unit stator E peaces
Fill the pre-embedded bolt screw thread in region.
13rd, rigging out, bridge-type double beam crane system recover：After generator unit stator E is steady in place, jack line is removed,
Shoulder pole girder B will be lifted to be placed on steam turbine 12.6m free time platforms, bridge-type double beam crane A is untied and lift shoulder pole girder B connection,
Two bridge-type double beam crane A flexible connecting device, additional movable pulley A2 and additional movable pulley A5 are removed respectively, and recover two
Platform bridge-type double beam crane A main hoisting mechanism steel wire rope.All Work tools for using of lifting are withdrawn, by bridge-type double beam lifting
Machine A recovers the state to lifting, this end of job.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, in the spiritual and former of invention
Any modification, equivalent substitution and improvements made within then etc., it should be included within the system architecture and method of the present invention.
Claims (5)
1. a kind of generator unit stator lifts steering, it is characterised in that includes the bridge-type double beam crane of 2 flexible connections
(A), 1 it is special it is homemade lift shoulder pole girder (B), fixed pulley assembly, movable pulley component, steel wire rope component and 1 set lifting turn to
Auxiliary equipment, the fixed pulley assembly are included in original fixed pulley (A1) by the main hoisting mechanism of every bridge-type double beam crane
And in each increased 2 additional fixed pulleys (A2) in its both sides, the movable pulley component includes original movable pulley and in every bridge-type
The other each increased 2 additional movable pulleys (A5) of the main hook (A4) of connection below double girder crane dolly (A3)；The steel wire rope group
Part includes the main hoisting mechanism steel wire rope passed around again and the hoisting wirerope newly established, times of the main hoisting mechanism steel wire rope
By original, " five or five walk ten " repacks " seventy-seven walk 14 " multiplying power into rate, reduces the pulling force that main hoisting mechanism goes out head end；Described
Hanging steel wire rope includes：2 φ 52mm × 21m jack lines (C1), shoulder pole girder (B) and generator unit stator (E) are lifted for bundling；2
Root φ 52mm × 12m steel wire ropes (C2), for bundling main hook (A4) and lifting shoulder pole girder (B)；4 φ 26mm × 7m steel wire ropes
(C3), for hanging additional movable pulley (A5)；4 φ 26mm × 6m steel wire ropes (C4), for hanging additional fixed pulley (A2).
2. generator unit stator according to claim 1 lifts steering, it is characterised in that described to lift shoulder pole girder (B)
Both ends are symmetrical to use φ 52mm × 12m steel wire ropes (C2) together with the main hook (A4) colligation, while increases by main hook (A4)
If 2 additional movable pulleys (A5) hung on by 4 φ 26mm × 7m steel wire ropes (C3) and shackle binding and described lift shoulder pole
On beam (B)；Symmetrical hung on the binding of 2 φ 52mm × 21m jack lines (C1) of generator unit stator (E) described lifts shoulder pole
Below beam (B).
3. generator unit stator according to claim 1 lifts steering, it is characterised in that the bridge-type double beam crane
(A) specification is 75/20t, reinforcement type, and girder reinforces bearing capacity and reaches 100t；The design load for lifting shoulder pole girder (B) reaches
250t；The additional fixed pulley (A2) and additional movable pulley (A5) are 20t simple gate snatch blocks.
4. a kind of generator unit stator lifting steering according to claim 1, it is characterised in that a set of lifting turns
Include 4 5t chain blocks, 4 100t hydraulic jack, some model Y-50 wire line shoe, some to auxiliary equipment
35t shackles, some φ 30mm round steel, spirit level, chain block protecting against shock when generator unit stator turns to are used, the circle
Steel is used for rolling generator stator, and the wire line shoe is used to press from both sides steel wire rope, and the shackle is used to coordinate with steel wire rope brachycephaly and made
With the spirit level is used to measure deflection of travelling crane.
5. the lifting forward method of steering is lifted according to any described a kind of generator unit stator in Claims 1-4, its
It is characterised by, its flow is as follows：Double girder overhead crane (A) positioning → installation adds fixed pulley (A2) → installation and adds movable pulley
(A5) → pass around main hoisting mechanism steel wire rope → double girder overhead crane (A) and car → installation lifting again and lift shoulder pole girder (B)
→ determine that drop off location → adjustment dolly (A3) positioning → generator unit stator (E) is unloaded → of generator unit stator (E) uses two
The mode of dolly (A3) move toward one another, generator unit stator (E) is driven once to turn to 45 ° → adjustment φ 52mm × 21m jack lines C1
Position on shoulder pole girder B is lifted, adjust dolly (A3) → two dolly (A3) move toward one another again, generator unit stator (E) two
Secondary turn to before 45 ° → adjustment dolly (A3) → dolly (A3) formally lifts by crane positioning → life hook inspection → lifting tries to hang inspection → raising
To operating layer → generator unit stator (E) translation → generator unit stator (E) it is in place → rigging out, double girder overhead crane (A) system
System recovers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711214103.8A CN107804785A (en) | 2017-11-28 | 2017-11-28 | A kind of generator unit stator lifting steering and its method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711214103.8A CN107804785A (en) | 2017-11-28 | 2017-11-28 | A kind of generator unit stator lifting steering and its method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107804785A true CN107804785A (en) | 2018-03-16 |
Family
ID=61590741
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711214103.8A Withdrawn CN107804785A (en) | 2017-11-28 | 2017-11-28 | A kind of generator unit stator lifting steering and its method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107804785A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111470423A (en) * | 2020-04-22 | 2020-07-31 | 中国能源建设集团天津电力建设有限公司 | Method for hoisting generator stator of thermal power generating unit |
| CN113233311A (en) * | 2021-06-07 | 2021-08-10 | 浙江陀曼精密机械有限公司 | Novel machine tool assembling and hoisting device |
-
2017
- 2017-11-28 CN CN201711214103.8A patent/CN107804785A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111470423A (en) * | 2020-04-22 | 2020-07-31 | 中国能源建设集团天津电力建设有限公司 | Method for hoisting generator stator of thermal power generating unit |
| CN113233311A (en) * | 2021-06-07 | 2021-08-10 | 浙江陀曼精密机械有限公司 | Novel machine tool assembling and hoisting device |
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