CN203645497U

CN203645497U - Special structure for generator stator lifting

Info

Publication number: CN203645497U
Application number: CN201320866721.1U
Authority: CN
Inventors: 张永良
Original assignee: Tianjin Extraordinary Hoisting Engineering Of Blue Nest Co Ltd
Current assignee: Tianjin Extraordinary Hoisting Engineering Of Blue Nest Co Ltd
Priority date: 2013-12-26
Filing date: 2013-12-26
Publication date: 2014-06-11
Anticipated expiration: 2023-12-26

Abstract

The utility model discloses a special structure for generator stator lifting, which comprises a 500t lifting hook, a main beam, two carrying pole beams, four groups of supporting beams, four hanging beams, and four sets of hydraulic lifting devices, wherein the four groups of supporting beams are respectively arranged on trolley tracks of crane main beams; each supporting beam group is provided with one hanging beam; the four sets of hydraulic lifting devices are connected onto and arranged at the lower ends of the four hanging beams via pin shafts; a carrying pole beam is hung below each two sets of hydraulic lifting devices via a steel strand, a lower cathead hanger and a pin shaft; the main beam is arranged between the two carrying pole beams; and the 500t lifting hook is arranged in the middle of the lower surface of the main beam. According to the special structure for generator stator lifting, hanging-type hydraulic lifting devices are used, connection and fixing with the special 500t lifting hook are carried out, horizontal rotation of the lifted object can be realized, the transmission state of the lifted object has no direction demand, about five working days are needed for construction preparation, unloading, lifting, on-load walking, positioning and disassembly of the lifting system, and the construction period is shortened.

Description

Generator unit stator lifting application specific architecture

Technical field

The utility model belongs to hanging device technical field, relates to a kind of generator unit stator lifting application specific architecture ,adopt steam turbine building driving girder and hydraulic lifting apparatus to coordinate the application specific architecture of realizing generator unit stator promotes, band carries walking and hoisted in position.

Background technology

Generator unit stator is the precision equipment of single-piece weight maximum in thermal power generation unit, generally adopts the direct hoisted in position of big machinery, makes a set of lifting framework separately and lift.

Owing to adopting the method for the direct hoisted in position of big machinery can cause big machinery lease, ground to process the construction costs such as input and increase considerably, also can affect other construction operations cannot normally carry out simultaneously, thereby affect the duration progress of whole engineering, substantially less adopt at present.

Adopt lifting framework lift to have that construction space is narrow and small, surrounding structure and equipment is intensive, need the workload of coordination large, the construction period is long, difficulty of construction high.

Summary of the invention

The utility model object is to improve deficiency and the restrictive condition that hanging method exists in the past, use hydraulic lifting apparatus and the cooperation of steam turbine building driving girder, a set of special-purpose member that can simultaneously meet 300MW, 600MW and the lifting of 1000MW fired power generating unit Different Weight generator unit stator is provided.

Generator unit stator that the utility model provides lifting application specific architecture, comprises a 500t suspension hook, girder, two shoulder pole girders, four groups of brace summers, four hanging beams and quadruplet hydraulic lifting apparatus; Four groups of described brace summers are arranged on respectively on the trolley track of driving girder, and a hanging beam is installed on every group of brace summer, and quadruplet hydraulic lifting apparatus is mounted on four hanging beam lower ends by bearing pin respectively; Every two cover hydraulic lifting apparatus belows are lifted with a shoulder pole girder by steel strand wire, lower anchor head suspension bracket and bearing pin, and a girder is installed between two shoulder pole girders, and 500t suspension hook is arranged on the lower surface middle part of girder.

Described 500t suspension hook is mainly used to realize suspended object and is tied and rotates; Described shoulder pole girder is arranged symmetrically in girder both sides, is connected by sphere with girder; Described brace summer is placed on driving girder, drives a vehicle two groups for every, is arranged symmetrically in the both sides of generator unit stator center line in place; Described hanging beam is arranged on the centre of every group of brace summer.

advantage of the present utility model and beneficial effect

The utility model, to make full use of suspension type hydraulic lifting apparatus design feature as prerequisite, is connected and fixed with special 500t suspension hook gib head, can realize hanging object and horizontally rotate, therefore to hanging the directionless requirement of travel position of thing.

Hanging beam and hydraulic lifting apparatus adopt bearing pin to be connected, can realize inclination operation, solved driving also the distance after car exceed the problem such as length of shoulder pole girder.

Shoulder pole girder and main beam adopt sphere to coordinate, and can effectively eliminate the shoulder pole girder problem such as construction torsion and discontinuity of bringing that is uneven.

From preparation of construction to unloading, lift, needing altogether approximately 5 working days with a year walking, dismounting in place and Lift-on/Lift-off System, shorten construction period.

If desired, girder can pass in the middle of the girder between two drivings of steam turbine building, can effectively utilize the lifting altitude of Lift-on/Lift-off System.Thereby guaranteeing is not affecting under the prerequisite of other construction operations, reach cost-saving, reduction of erection time, take up room narrow and small, reduce the features such as difficulty of construction.

Accompanying drawing explanation

Fig. 1: Lift-on/Lift-off System front view.

Fig. 2: Lift-on/Lift-off System end view.

Fig. 3: main beam is connected front view with 500t suspension hook.

Fig. 4: main beam is connected end view with 500t suspension hook.

Fig. 5: hangar system front view.

Fig. 6: hangar system end view.

Fig. 7: hanging beam front view.

Fig. 8: hanging beam end view.

Fig. 9: hanging beam vertical view.

Figure 10: brace summer end view.

Figure 11: brace summer front view.

Figure 12: shoulder pole girder front view.

Figure 13: shoulder pole girder end view.

Figure 14: girder front view.

Figure 15: girder end view.

In figure, 1-hanging beam, 2-brace summer, 3-hydraulic lifting apparatus, 4-girder, 5-500t suspension hook, the 6-girder of driving a vehicle, 7-steel strand wire, 8-shoulder pole girder, 9-generator unit stator.

Embodiment

As shown in Figure 1 and Figure 2, the utility model generator unit stator lifting application specific architecture comprises that four hanging beam 1(are shown in Fig. 7 to Fig. 9), four groups of brace summer 2(are shown in Figure 10, Figure 11), quadruplet hydraulic lifting apparatus 3, two shoulder pole girder 8(be shown in Figure 12, Figure 13), a girder 4(is shown in Figure 14, Figure 15) an and 500t suspension hook 5.

Described four groups of brace summers 2 are arranged on the trolley track of driving girder 6, drive a vehicle two groups for every, are arranged symmetrically in the both sides of generator unit stator 9 center lines in place; Described four hanging beams 1 are arranged on respectively the center of four groups of brace summers 2, and described quadruplet hydraulic lifting apparatus 3 is connected (seeing Fig. 5, Fig. 6) with four hanging beams by bearing pin respectively; Every two cover hydraulic lifting apparatus belows are lifted with a shoulder pole girder by equipment such as steel strand wire 7, lower anchor head suspension bracket and bearing pins, described girder 4 is arranged on the top of two shoulder pole girders 8, guarantees that the convex spherical at girder two ends coordinates closely with the spill sphere in the middle of shoulder pole girder; 500t suspension hook is arranged on the lower surface middle part (seeing Fig. 3, Fig. 4) of girder.Thereby promote steel strand wire by operation hydraulic lifting apparatus and reach the object that promotes generator unit stator.

Claims

1. a generator unit stator lifting application specific architecture, is characterized in that this assembly comprises a 500t suspension hook, girder, two shoulder pole girders, four groups of brace summers, four hanging beams and quadruplet hydraulic lifting apparatus; Four groups of described brace summers are arranged on respectively on the trolley track of driving girder, and a hanging beam is installed on every group of brace summer, and quadruplet hydraulic lifting apparatus is mounted on four hanging beam lower ends by bearing pin respectively; Every two cover hydraulic lifting apparatus belows are lifted with a shoulder pole girder by steel strand wire, lower anchor head suspension bracket and bearing pin, and a girder is installed between two shoulder pole girders, and 500t suspension hook is arranged on the lower surface middle part of girder.