CN104370217A

CN104370217A - Portal crane for paving bridge decks

Info

Publication number: CN104370217A
Application number: CN201310346971.7A
Authority: CN
Inventors: 李耀成
Original assignee: HOISTING AND CONVEYING MACHINERY Co Ltd HUBEI E'NAN
Current assignee: HOISTING AND CONVEYING MACHINERY Co Ltd HUBEI E'NAN
Priority date: 2013-08-12
Filing date: 2013-08-12
Publication date: 2015-02-25
Anticipated expiration: 2033-08-12
Also published as: CN104370217B

Abstract

The invention provides a portal crane for paving bridge decks. The portal crane comprises a supporting moving portal, a bridge crane body and a lifting appliance, wherein the portal is a steel structure assembly, the bridge crane body travels on the steel structure assembly, and a girder adopts a cantilever structure to enable a side bridge deck to be paved in a manner that the center of the side bridge deck exceeds the center of a cross beam of the portal; the bridge crane body moves wholly on the portal to adjust deck taking operation and locate for deck pavement; four landing legs of the portal are respectively provided with a cantilever crane, gantry crane walking tracks are transported reversely and paved in front of and behind the cantilever cranes, and a decking portal crane moves forwards or backwards in a sectional manner; the lifting appliance comprises a lifting bracket, a lifting appliance shaft and a rope. When the crane crosses over, a rotational crane on the portal crane is used for performing installation and disassembly of a walking track beam of a cart of the portal crane in a front and back manner, crossing operation can be performed conveniently and rapidly, and the auxiliary adjusting time of the crane can be shortened.

Description

A kind of bridge plate face laying transfer crane

Technical field

The present invention's invention relates to a kind of large bridge bridge plate face laying construction equipment, belongs to elevator machinery and manufactures and designs field.

Background technology

In Large Span Bridges process of construction, the girder steel formula bridges such as steel arch bridge, cable-stayed bridge, suspension bridge are covered with decking, decking weight is generally at below 40t, oad generally the wide x of long X high=below 12000mmx5000mmx250mm, the decking laying construction technique of existing large bridge generally adopts Bridge Erector set up or in water channel, adopt boat form crane barge to lay, the equipment investment of a Bridge Erector input is built, and within one day, energy bed board is few.Its complex process, equipment cost investment is large, and efficiency is low, and bridge construction is long in time limit, and crane barge more cannot be adopted for across mountain valley to lay without the bridge of water channel, this is existing operating technique and the subject matter existing for equipment.

Summary of the invention

The change that the invention provides a kind of large bridge bridge plate face laying construction across, the transfer crane of certain bridge deck width scope can be adapted to.

The present invention is achieved in that

A kind of decking lay transfer crane, comprise and support walking door frame, crane in bridge type, suspender, door frame is steel structure assembly, and crane in bridge type is walked thereon, its girder adopts cantilever design, makes the center of limit decking can exceed door frame crossbeam center and lay limit bridge plate; Crane in bridge type moves as complete machine at described door frame, can adjust and get plate and bed board location; Four supporting legs of door frame respectively establish a cantilever crane, before and after cantilever crane, gantry crane running track is had bad luck and laid, carry out bed board door machine sectional type and move ahead or retreat; Suspender comprises suspension bracket, suspender axle and rope tool, and suspender adopts boatswain chair nose suspension type, energy 360o full circle swinging; Rope tool adopts ears rope and shackle locking type, and ears rope hangs in the arc groove above suspension bracket.

The present invention hoisting crane cross across time, by the rotating lifting be arranged on gauntry crane complete gantry crane walk track girder front and back pacify tear open, can fast and easy cross across, shorten hoisting crane assist regulation time.

Decking of the present invention lay transfer crane realize becoming across, certain bridge deck width scope can be adapted to.

Accompanying drawing explanation

Fig. 1 is the total front view of transfer crane of the present invention;

Fig. 2 is transfer crane schematic side view of the present invention;

Fig. 3 is the suspender front view of transfer crane of the present invention

Fig. 4 is suspender lateral plan of the present invention;

Fig. 5 is ears rope figure of the present invention;

Be designated in figure: Bridge 1 formula hoisting crane 2 door frame 3 door frame operating unit 4 rail clamping device 5 cantilever crane

6 ring-chain hoist 7 suspender 8 suspender axles 9 are restricted tool 10 shackle 11 groove.

Detailed description of the invention

Be further described below in conjunction with accompanying drawing:

Decking of the present invention lay transfer crane by supporting walking door frame 2, crane in bridge type 1, suspender, the design of door frame adopts the method raising cross sill, make the center of limit decking can exceed door frame crossbeam center and lay limit bridge plate, four supporting legs of door frame respectively establish a cantilever crane 6, before and after cantilever crane 6, gantry crane running track is had bad luck and laid, carry out bed board door machine sectional type and move ahead or retreat; Crane in bridge type on door frame carries out getting plate and bed board on door frame; Suspender adopts boatswain chair nose suspension type, energy 360o full circle swinging; Rope tool 9 adopts ears rope and shackle locking type, can fast and easy hanging cable and get rope.

Hoisting crane shown in Fig. 1 always figure is:

1. crane in bridge type, complete machine can not have door frame to move as complete machine, can adjust to get plate and bed board is positioned;

2. door frame steel structure assembly, as the main load-supporting part of bed board door machine, crane in bridge type is walked thereon; the profile of door frame framed structure can meet the requirement of bridge bed board station; to fall in rotation location plate location for ease of bridge plate, raise cross sill and to leave the right or normal track face height, be decided to be 1904mm; Door frame girder adopts cantilever design, makes bed board function lay the side plate of bridge; Door frame girder adopts segmentation high strength bolt to connect, and is convenient to transport and transition repeated usage, and can realizes limited change across use;

3. walk on stage, ladder, railing, arrange electrical equipment thereon, as access path;

4. be traveling mechanism of the larger traveller, its driving side is three-in-one driving, uses and adjustment plate paver station use as plate paver telephone-moving;

5. for rail clamping device is as plate paver parking Windproof safety with having gradient pavement construction as safety device;

6. cantilever crane 6 is as plate paver reach or retreat track and have bad luck use, is the important Auxiliary Functioning Unit of plate paver, realize track cross in advance across, greatly shorten telephone-moving non-cutting time;

7. suspender is as critical function parts during planking operation, there are larger improvement and breakthrough in design, existing technique adopts hoist cable without suspension bracket, whole like this hoisting height is higher, equipment height is corresponding to be also improved, for some bridge as steel arch bridge cannot pass through lifting appliance, this suspender adopts nose suspension type greatly to shorten hoisting height, multiple tracks arc groove is provided with on suspension bracket body frame, to adapt to the hanging cable of the decking of all lengths dimensions, ears rope hangs in the arc groove above suspension bracket body frame, can swing, to adapt to the decking of various width dimensions specification, suspender has commonality and handled easily.

The typical operation step that decking lay transfer crane is as follows:

Decking lay below transfer crane mounting and adjusting to the OFF state that normally works → in place → fortune Liangping wooden handcart transport bridge panel to gantry crane → bridge crane on dolly get plate → dolly back to place above decking center of gravity and to move ahead and bridge crane is displaced to installation site and dolly on the decking → install decking (middle plate) and put in place of becoming a full member → flat truck transport bridge panel (side plate) → bridge crane retreats and gets side plate another block side plate that is forwarded to installation site and side plate of becoming a full member → hoisting crane whereabouts side plate puts in place → installs → have bad luck track → mistakes across → above-mentioned the working process of repetition hoisting crane.

Former bridge floor bed board because of non-cutting time long, within one day, 12 blocks of plates can only be laid at most, an existing bed board transfer crane after Xiangjiang River Bridge place in operation, one day 25 pieces, energy bed board.

As can be seen here, bed board transfer crane of the present invention, compared with original technology, has substantive distinguishing features and progress, and its beneficial effect implemented also is highly significant.

Claims

1. decking lay transfer crane, comprise and support walking door frame, crane in bridge type, suspender combination, described door frame is steel structure assembly, and crane in bridge type is walked thereon, its girder adopts cantilever design, makes the center of limit decking can exceed door frame crossbeam center and lay limit bridge plate; Described crane in bridge type moves as complete machine at described door frame, can adjust and get plate and bed board location; It is characterized in that, four supporting legs of described door frame respectively establish a cantilever crane, before and after described cantilever crane, gantry crane running track is had bad luck and laid, carry out bed board door machine sectional type and move ahead or retreat; Described suspender comprises suspension bracket, suspender axle and rope tool, and described suspender adopts boatswain chair nose suspension type, energy 360o full circle swinging; Described rope tool adopts ears rope and shackle locking type, and ears rope hangs in the arc groove above suspension bracket.