CN203269307U

CN203269307U - Module lifting tool of nuclear power station

Info

Publication number: CN203269307U
Application number: CN2013200075884U
Authority: CN
Inventors: 张衍
Original assignee: STATE NUCLEAR POWER ENGINEERING Co
Current assignee: Shanghai Nuclear Engineering Research and Design Institute Co Ltd
Priority date: 2013-01-08
Filing date: 2013-01-08
Publication date: 2013-11-06
Anticipated expiration: 2023-01-08

Abstract

The utility model relates to a module lifting tool of a nuclear power station. The module lifting tool is characterized by comprising seven crossbeams, four pairs of lower lifting plates, two middle lifting forks, one pair of upper lifting plates, one upper lifting fork and a pin shaft. All the components of the module lifting tool can be connected into a whole body and can not slip off, so that the module lifting tool is large in carrying capacity and high in operation safety. When the lifting tool provided by the utility model is disassembled for storage after being used, the pin shaft and accessories of the pin shaft can be boxed or taken back into a storehouse, and the seven crossbeams can be vertically placed stably for a long time in a storage place, so that the module lifting tool is small in floor area.

Description

The nuclear power station module suspender

Technical field

The utility model relates to a kind of in the nuclear station work progress, is used for the instrument that construction module is lifted.

Background technology

The form that three generations's nuclear power adopts modularization to build, wherein, nuclear station part-structure module volume is large, Heavy Weight, suspension centre are many, and the relative center of gravity of suspension centre is asymmetric, need to many hoisting beams combine form combined sling could be with large crane, that this equipment lifting is in place.At present, the CA20/CA01 module suspender that uses during the AP1000 construction, part in design comes with some shortcomings, cause beam from great, center of gravity is high, the bottom width relative narrower, if stand up poor stability when depositing, keep flat for a long time and easily produce the permanent bend distortion, affect its Lifting Capacity, also have some potential safety hazards in combination, use, following boatswain chair is located inaccuracy, easy slippage etc.

Summary of the invention

The purpose of this utility model be to provide a kind ofly be convenient to deposit, load-carrying capacity is large and operational security is high, be used for the instrument of nuclear station construction module lifting.

In order to achieve the above object, the technical solution of the utility model has been to provide a kind of nuclear power station module suspender, it is characterized in that: comprising under seven crossbeams, fourth officer that boatswain chair, two is merely hit hangs fork, a secondary upper boatswain chair, hang oneself fork and a bearing pin, and 7 crossbeams comprise entablatrance, two center members, two cross sills one and two cross sills two; The concentricity line of fork, upper boatswain chair and entablatrance of hanging oneself arranges, upper boatswain chair upper end links by a bearing pin and the fork of hanging oneself, and its lower end and entablatrance are by being positioned at two bearing pins and the entablatrance link on the same level line; The upper end that two merely hit hangs fork is attached at respectively the left and right two ends of entablatrance by bearing pin separately, two center members bearing pin by separately is attached at respectively two and merely hits and hang the lower end of fork, and the two lower loop wheel machine structures of cover that structure is identical are connected with a center member respectively;

Under every cover, the loop wheel machine structure comprises lower boatswain chair one, lower boatswain chair two, cross sill one, cross sill two, circular hoisting belt, fixed type hanger and bearing pin; The upper end of lower boatswain chair one and lower boatswain chair two is attached at respectively the left and right two ends of center member by bearing pin separately, cross sill one and cross sill two bearing pin by separately is connected with the lower end of lower boatswain chair one and lower boatswain chair two respectively, and lower boatswain chair one is arranged with the respectively concentricity lines of cross sill two with cross sill one and lower boatswain chair two; The fixed type hanger is inserted thoroughly from cross sill one and cross sill two respectively, is welded and fixed respectively between fixed type hanger and cross sill one and cross sill two, and circular hoisting belt and fixed type hanger link by bearing pin.

Preferably, the version of described entablatrance and described center member is designed to the variable section constant strength beam.

Preferably, the height to width ratio of described entablatrance and described center member is 1:3～2:5.

Can form an integral body after all members of the present utility model connect, without possibility slippage parts, not only load-carrying capacity is large, and operational security is high.The suspender that the utility model provides with after disassemble and open when depositing, the warehouse can be cased or regain to bearing pin and annex thereof, seven crossbeams can stand up in the storage space long-term stability, floor area is little.

Description of drawings

The front view of a kind of nuclear power station module suspender that Fig. 1 provides for the utility model;

The lateral plan of a kind of nuclear power station module suspender that Fig. 2 provides for the utility model.

The specific embodiment

For the utility model is become apparent, hereby with preferred embodiment, and coordinate accompanying drawing to be described in detail below.

As shown in Figures 1 and 2, the utility model provides a kind of nuclear power station module suspender, comprises seven crossbeams---boatswain chair under entablatrance 3, two center members 6, two cross sills 1 and two cross sills 25, fourth officer---, and two secondary lower boatswain chairs 1 and two secondary lower boatswain chairs 2 20, two are merely hit and are hung the secondary upper boatswain chair 2 of fork 4,, hang oneself fork 1 and some bearing pins.The concentricity line of fork 1, upper boatswain chair 2 and entablatrance 3 of hanging oneself is arranged.Upper end at the fork 1 of hanging oneself penetrates bearing pin 28, and packing ring 29 and end plate 1 are arranged at the two ends of bearing pin 28.Upper boatswain chair 2 upper ends link by a bearing pin 1 and the fork 1 of hanging oneself, packing ring 1 and end plate 1 are arranged at the two ends of bearing pin 1, its lower end and entablatrance 3 link with entablatrance 3 by two bearing pins 3 14 that are positioned on the same level line, and there are packing ring 3 15 and end plate 3 16 in the two ends of bearing pin 3 14.Upper boatswain chair 2 upper ends link with the bearing pin of fork 1 use of hanging oneself, and 2 bearing pins in lower end and entablatrance 3 use are connected, the stressed moment of flexure when having reduced the local extrusion stress of entablatrance 3 webs and entablatrance 3 and lifting.Two merely hit hangs fork 4 upper end and is attached at respectively the left and right two ends of entablatrance 3 by bearing pin 4 17 separately, at the two ends of bearing pin 4 17, the bearing pin annex is arranged too.Two center members 6 bearing pin 5 27 by separately is attached at respectively two and merely hits and hang the lower end of fork 4, and the two ends of bearing pin 5 27 have the bearing pin annex equally.The version of entablatrance 3 and center member 6 is designed to the variable section constant strength beam, and is from heavy and light, stressed more reasonable.The height to width ratio of entablatrance 3 and center member 6 is 1:3～2:5, relatively rationally, center of gravity is lower, when not using on the ground long-term stability stand up.In the present embodiment, the height to width ratio of entablatrance 3 is 7:24, and the height to width ratio of center member 6 is 13:38.The lower loop wheel machine structure of two covers that structure is identical is connected with a center member 6 respectively.

Under every cover, the loop wheel machine structure comprises lower boatswain chair 1, lower boatswain chair 2 20, cross sill 1, cross sill 25, circular hoisting belt 28, fixed type hanger and some bearing pins.The upper end of lower boatswain chair 1 and lower boatswain chair 2 20 is attached at respectively the left and right two ends of center member 6 by bearing pin 6 24 separately, packing ring 6 25 and end plate 6 26 are arranged at the two ends of bearing pin 6 24.Cross sill 1 and cross sill 25 bearing pin by separately is connected with the lower end of lower boatswain chair 1 and lower boatswain chair 2 20 respectively, and lower boatswain chair 1 is arranged with the respectively concentricity lines of cross sill 25 with cross sill 1 and lower boatswain chair 2 20.The fixed type hanger is inserted thoroughly from cross sill 1 and cross sill 25 respectively, is welded and fixed respectively between fixed type hanger and cross sill 1 and cross sill 25.The fixed type hanger directly inserts cross sill 1 and cross sill 25, stressed clear and definite, registration, and the fixed type hanger is inserted thoroughly from cross sill 1 and cross sill 25, and welding quality easily guarantees.Circular hoisting belt 28 links by bearing pin 7 21 with the fixed type hanger, at bearing pin 7 21 two ends, packing ring 7 22 and end plate 7 23 is arranged.Fixed type hanger and circular hoisting belt 28 use bearing pins link, and when having alleviated the suspender combination, workman's labour intensity, strengthened operational security.

Claims

1. nuclear power station module suspender, it is characterized in that: comprising that 7 crossbeams, 4 secondary lower boatswain chairs, 2 are merely hit hangs fork (4), 1 secondary boatswain chair (2), 1 hang oneself fork (1) and bearing pin gone up, and 7 crossbeams comprise entablatrance (3), two center members (6), one (19) and two cross sill two (5) of two cross sills; The concentricity line of fork (1), upper boatswain chair (2) and entablatrance (3) of hanging oneself is arranged, upper boatswain chair (2) upper end links by a bearing pin and the fork (1) of hanging oneself, and its lower end and entablatrance (3) are by being positioned at two bearing pins and entablatrance (3) link on the same level line; The upper end that two merely hit hangs fork (4) is attached at respectively the left and right two ends of entablatrance (3) by bearing pin separately, the bearing pin of two center members (6) by separately is attached at respectively two and merely hits and hang the lower end of fork (4), and the two lower loop wheel machine structures of cover that structure is identical are connected with a center member (6) respectively;

Under every cover, the loop wheel machine structure comprises lower boatswain chair one (18), lower boatswain chair two (20), cross sill one (19), cross sill two (5), circular hoisting belt (28), fixed type hanger and bearing pin; The upper end of lower boatswain chair one (18) and lower boatswain chair two (20) is attached at respectively the left and right two ends of center member (6) by bearing pin separately, cross sill one (19) and cross sill two (5) bearing pin by separately is connected with the lower end of lower boatswain chair one (18) and lower boatswain chair two (20) respectively, and lower boatswain chair one (18) is arranged with the respectively concentricity lines of cross sill two (5) with cross sill one (19) and lower boatswain chair two (20); The fixed type hanger is inserted thoroughly from cross sill one (19) and cross sill two (5) respectively, is welded and fixed respectively between fixed type hanger and cross sill one (19) and cross sill two (5), and circular hoisting belt (28) links by bearing pin with the fixed type hanger.

2. a kind of nuclear power station module suspender as claimed in claim 1, it is characterized in that: the version of described entablatrance (3) and described center member (6) is designed to the variable section constant strength beam.

3. a kind of nuclear power station module suspender as claimed in claim 1, it is characterized in that: the height to width ratio of described entablatrance (3) and described center member (6) is 1:3～2:5.