CN201250064Y

CN201250064Y - Front launching nose type bridge girder erection machine for bridge erection

Info

Publication number: CN201250064Y
Application number: CN 200820056238
Authority: CN
Inventors: 张钢
Original assignee: Shanghai Gangji Heavy Industry Co Ltd
Current assignee: Shanghai Gangji Heavy Industry Co Ltd
Priority date: 2008-03-14
Filing date: 2008-03-14
Publication date: 2009-06-03
Anticipated expiration: 2018-03-14

Abstract

The utility model relates to a front launching nose type bridge girder erection machine for bridge erection, which comprises a rear support leg, a front support leg and an auxiliary support leg, and the legs support a main girder. The main girder is equipped with three running trolleys, a lifting mechanism of the bridge girder erection machine drives a steel cable to lift hangers on the trolleys, and the main girder is arranged on preset rails through wheels of the legs. An initial position of the front launching nose is arranged at a next working station of the main girder, rails are arranged on the front launching nose, and the auxiliary support leg is arranged on the rails through wheels. The front launching nose of the bridge girder erection machine utilizes light box girder structure to reduce load of a lifting device while moving the bridge girder erection machine, the auxiliary support leg which is supported on the front launching nose can lead the bridge girder erection machine to lower the body gravity center when the overall machine moves, thereby increasing stability, and therefore, the bridge girder erection machine has the advantages of high efficiency and stable operation. In addition, the bridge girder erection machine can be used in bridge erection operation in railway or highway construction.

Description

A kind of leading beam type bridge formation machine that is used to build a bridge

Technical field

The utility model relates to the weight-lifting equipment field of bridge, more particularly, relates to a kind of leading beam type bridge formation machine that is used to build a bridge.

Background technology

In recent years, the railway transportation of China presents the trend of high speed development, and in China, the quality and quantity of railway supplyline increases year by year.In the high speed railway construction net of China planning, bridge occupies bigger ratio in line design, for example is about to the Beijing-Shanghai High-Speed Railway that puts into operation, and its bridge completely reaches 800, has accounted for 50% of circuit length overall; In the inter-city passenger rail of Beijing to Tianjin, bridge length may the line is busy road length overall more than 75%, medium and small span bridge wherein will reach more than 90%, therefore analyze from duration, cost, quality and benefits, stride precasting, the simple supported box beam that sets up by cross and little span continuous beam entirely and will become main body in the bridge erection, and this will directly promote Building Trade in China market to the bridge span erecting machine growth of requirement, so just be badly in need of improving a kind of bridge formation machine, to satisfy this demand.

The utility model content

At the demand of present bridge erection to the bridge formation machine, the purpose of this utility model provides the leading beam type bridge formation machine that is used to build a bridge, and described bridge formation function is set up described bridge fast and easily.

For achieving the above object, the leading beam type bridge formation machine that is used to build a bridge described in the utility model comprises:

Supporting leg comprises rear support leg, front leg strut, auxilliary supporting leg, and described rear support leg, front leg strut, auxilliary supporting leg are connected the desired location of described crane ' s major girder and support described girder;

Girder, three running trolleys are installed on the girder, described running trolley is arranged on the described girder by its wheel, dark and pulley hangs a suspender at least by steel wire on each running trolley, the lifting mechanism of described bridge formation machine drives the described suspender of described steel rope lifting, and girder is arranged on the predetermined track by the wheel of described supporting leg;

Front launching nose, the initial position of front launching nose are positioned on next station of described girder, have track on it, and described auxilliary supporting leg is arranged on the track above the described front launching nose by its wheel.

The front portion of described girder is divided into single-spar construction, and the rear portion is divided into twin-spar construction, and described twin-spar construction part is installed first, second running trolley successively, and described single-spar construction is partly installed the 3rd running trolley.

The lower part of described rear support leg is similar to down trapezoidal shape, its top is divided into rectangular boss, the wheel of rear support leg is suitable for sliding on the track of the beam that the last station of described bridge formation machine sets up, the rear support leg bottom has the hydraulic actuating cylinder that two vertical directions are provided with, an end of the described girder twin-spar construction part of rear support leg top fixed pedestal.

Described front leg strut and auxilliary supporting leg support the other end of described girder twin-spar construction part, described first, second running trolley is arranged on the girder twin-spar construction between described rear support leg and the front leg strut by its wheel, and described the 3rd running trolley is arranged on the girder single-spar construction part of described auxilliary supporting leg one side by its wheel.

Described auxilliary supporting leg comprises stay bearing plate, two telescoping shoring columns, two hydraulic actuating cylinders and saddle beam, described two telescoping shoring columns, hydraulic actuating cylinders are the vertical direction setting, the top of telescoping shoring column and hydraulic actuating cylinder is connected and fixed described stay bearing plate, the bottom of telescoping shoring column and hydraulic actuating cylinder is installed on the described saddle beam, described stay bearing plate supports described girder, and the wheel that described saddle beam below is provided with is positioned on the track on the described front launching nose.

Described auxilliary supporting leg has motor, and described motor is installed in the below of auxilliary supporting leg and described girder connecting portion, and the described auxilliary supporting leg of described motor-driven, described auxilliary supporting leg are arranged on the track on described girder and the described front launching nose.

Described front launching nose is a box-beam structure, and front launching nose comprises short leg, the described front launching nose of described short supporting leg.

Adopt a kind of leading beam type bridge formation machine that is used to build a bridge described in the utility model, three running trolleys are installed on the girder, first, sling described bridge and slide to corresponding station of second running trolley along girder, put down described bridge after the arrival, sliding on respective rail arrives new station to the machine of building bridge then by rear support leg and auxilliary supporting leg, afterwards front launching nose is moved on to next station of new station, carry out next one circulation, front launching nose of the present utility model has adopted the box-beam structure of low weight, reduced the load of the equipment that hoists when the bridge formation machine moves, auxilliary supporting leg is supported on and can makes the bridge formation machine reduce self center of gravity on the front launching nose when complete machine moves, enhanced stability, more than make efficient height of bridge formation facility of the present utility model and the advantage that operates steadily, it can use in the bridging operation in railway or the highway construction.

Description of drawings

Fig. 1 is an overall structure scheme drawing of the present utility model;

Fig. 2 is the B-B cutaway view about the rear support leg structure of Fig. 1;

Fig. 3 is the C-C cutaway view about the running trolley hanging beam of Fig. 1;

Fig. 4 is the D-D cutaway view about the front leg strut structure of Fig. 1;

Fig. 5 is the E-E cutaway view about auxilliary leg structure of Fig. 1;

Fig. 6 is the F-F cutaway view about the handling front launching nose of Fig. 1;

Fig. 7 to Figure 13 is the utility model workflow scheme drawing;

Figure 14 is the scheme drawing after turning on the rear support leg of the present utility model;

Figure 15 is the whole constitution diagram when mobile of the utility model.

The specific embodiment

Further specify the technical solution of the utility model below in conjunction with drawings and Examples.

Referring to Fig. 1, the leading beam type bridge formation machine that is used to build a bridge described in the utility model, its integral body is arranged on the

bridge pier

81,82,83,84, comprising:

Rear support leg 10, front leg strut 11, auxilliary supporting leg 12 support described girder 20, the wheel 101 of rear support leg 10 is placed on the track 72 on the beam 71 that has set up (shown in Figure 2), the bottom of front leg strut 11 is placed on the bridge pier 83, the initial position of front launching nose 30 is positioned on next station of described girder 20, front launching nose 30 is a box-beam structure, front launching nose 30 comprises short leg, the described front launching nose 30 of described short supporting leg, have track 31 on it, the wheel of described auxilliary supporting leg 12 is placed on the described track 31 and can slides thereon; Beam transportation vehicle 40 is positioned on the beam 71 that has set up, and beam 70 slides to working position by the roller on the beam transportation vehicle 40 41, to wait for the running trolley handling on the bridge formation machine; The front portion of described girder 20 is divided into single-spar construction part 22, the rear portion is divided into twin-spar construction part 21, described twin-spar construction part 21 is installed first running trolley 51 successively, second running trolley 52, described single-spar construction part 22 is installed the 3rd running trolley 53, described three running

trolleys

51,52,53 can slide on the track that is provided with on the girder 20, first running trolley 51 is by steel rope and two suspenders 61 of suspended, 62 (referring to Fig. 3), second running trolley 52 is by steel rope and two suspenders 63 of suspended, 64, the 3rd running trolley 53 is by steel rope and suspender 65 of suspended, described first running trolley 51, the suspender 61 of second running

trolley

52,62,63,64 are mainly used to the beam 70 that the described beam transportation vehicle 40 of handling ships, described the 3rd running trolley 53 suspenders 65 are mainly used to handling front launching nose 30, and the lifting mechanism of described bridge formation machine drives the described suspender of described steel rope lifting to realize handling.

Referring to Fig. 2, described rear support leg 10 shapes are roughly the lower part and are similar to down trapezoidal shape, and its top is divided into rectangular boss, and several parts of rear support leg 10 form by flange connection, and the while has hinged in the junction, can rotate.The wheel 101 of rear support leg 10 can slide on the track 72 of the beam 71 that the last station of described bridge formation machine sets up, the bottom of rear support leg 10 has the hydraulic actuating cylinder 102 that two vertical directions are provided with, an end of the described girder twin-spar construction of rear support leg 10 top fixed pedestals part 21.

Referring to Fig. 4, the bottom of described front leg strut 11 is placed on the bridge pier 83, its top connects the twin-spar construction part 21 of girder 20, the support of the bottom of front leg strut 11 has side hinged 112, side hinged 112 can make the support of the bottom of described front leg strut 11 dig to both sides, also have two pull bars 111 in addition, pull bar 111 1 ends connect the top of described front leg strut 11, and the other end connects corresponding running trolley and connects.

Referring to Fig. 5, described auxilliary supporting leg 12 comprises stay bearing plate 125, two telescoping shoring columns 122, two hydraulic actuating cylinders 123 and saddle beams 124, described two telescoping shoring columns 122, hydraulic actuating cylinder 123 are the vertical direction setting, telescoping shoring column 122 is connected and fixed described stay bearing plate 125 with the top of hydraulic actuating cylinder 123, telescoping shoring column 122 is installed on the described saddle beam 124 with the bottom of hydraulic actuating cylinder 123, the described girder 21 of described stay bearing plate 125 fixed pedestals, the wheel 121 that described saddle beam 30 belows are provided with can slide on the track 31 on the described front launching nose 30; Referring to Fig. 1, described auxilliary supporting leg 12 has motor 126, and described motor 126 is installed in the below of auxilliary supporting leg 12 and described girder 20 connecting portions, and described motor 126 drives described auxilliary supporting leg 12 along sliding on the track 31 on described girder 20 and the described front launching nose 30.

Introduce working process of the present utility model below: the first step is shown in Figure 7, and beam transportation vehicle ships beam 70; Second step was Fig. 8, Fig. 9, shown in Figure 10, and running

trolley

51,52 is sling beam 70, and utilized carriage walking that beam 70 is transported to and treat top, frame hole, the beam that falls then, and this process, rear support leg and front leg strut support complete machine weight; The 3rd step was shown in Figure 11, after 70 on beam is got well, and the hydraulic ram jacking of auxiliary supporting leg, with bridge formation machine jack-up a little, front leg strut is liftoff, and rear support leg place hydraulic ram shrinks, wheel drops on the track, and by the large vehicle walking device, bridge formation machine complete machine moves to next station, after putting in place, auxiliary supporting leg hydraulic ram shrinks, and front leg strut supports the bridge formation machine again, the jacking of rear support leg hydraulic ram, wheel leaves the right or normal track, at rear support leg underlay pad, hydraulic ram shrinks, and rear support leg supports the bridge formation machine; The 4th step was Figure 12, shown in Figure 13, after 70 on beam is good running trolleys 52 from front launching nose 30 ends with its certain altitude of slinging, vertical shift forward then, when running trolley 52 is near extreme limit of travel, suspender also is connected with front launching nose 30 on the running trolley 53 of girder 20 front ends, drive front launching nose 30 and continue to move forward after running trolley 52 can't continue to move forward, to next hole, the bridge formation machine enters next circulation of setting a roof beam in place with front launching nose 30 handlings.

Bridge formation machine described in the utility model is when integral body is mobile, in order to increase the stationarity of process, referring to Figure 15, can cooperate beam transportation vehicle 40 to realize by a cover telescoping shoring column 90, at first be connected and fixed with beam transportation vehicle 40 by the girder 20 of support 90 with the bridge formation machine, telescoping shoring column 90 elongations and auxilliary supporting leg 12 be the described bridge formation machine of jack-up in the lump, referring to Figure 14, the lower part of the rear support leg 10 of bridge formation machine can disconnect, be divided into two independently " C " shape parts (pack in the process and the top of bridge formation machine rear support leg 10 need be unloaded) in the tunnel, hinged on the rear support leg 10 can partly can turn to two " C " shapes parallel with girder 20 and the bottom of rear support leg 10 is upwards turned over, and hydraulic actuating cylinder 102 shrinks the height that makes rear support leg 10 to be reduced; Referring to Fig. 4, it is hinged 112 that the support of the bottom of front leg strut 11 has the side, and side hinged 112 can make the support of the bottom of described front leg strut 11 dig to both sides; Referring to Fig. 5, two oil cylinders 123 of auxilliary supporting leg 12 shrink, two telescoping shoring columns 122 reduce height by the plug pin, such three supporting legs (rear support leg 10, front leg strut 11, auxilliary supporting leg 12) have reduced height, simultaneously described telescoping shoring column 90 shrinks, bridge formation machine height is descended, center of gravity reduces, and has strengthened the stationarity that the bridge formation machine is packed process.

Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of above embodiment.

Claims

1. a leading beam type bridge formation machine that is used to build a bridge is characterized in that, comprising:

2. a kind of leading beam type bridge formation machine that is used to build a bridge as claimed in claim 1, it is characterized in that, the front portion of described girder is divided into single-spar construction, the rear portion is divided into twin-spar construction, described twin-spar construction part is installed first, second running trolley successively, and described single-spar construction is partly installed the 3rd running trolley.

3. a kind of leading beam type bridge formation machine that is used to build a bridge as claimed in claim 2, it is characterized in that, the lower part of described rear support leg is similar to down trapezoidal shape, its top is divided into rectangular boss, the wheel of rear support leg is suitable for sliding on the track of the beam that the last station of described bridge formation machine sets up, the rear support leg bottom has the hydraulic actuating cylinder that two vertical directions are provided with, an end of the described girder twin-spar construction part of rear support leg top fixed pedestal.

4. a kind of leading beam type bridge formation machine that is used to build a bridge as claimed in claim 3, it is characterized in that, described front leg strut and auxilliary supporting leg support the other end of described girder twin-spar construction part, described first, second running trolley is arranged on the girder twin-spar construction between described rear support leg and the front leg strut by its wheel, and described the 3rd running trolley is arranged on the girder single-spar construction part of described auxilliary supporting leg one side by its wheel.