CN210286440U

CN210286440U - A transport hoist for hoisting bridge girder erection machine

Info

Publication number: CN210286440U
Application number: CN201921017879.5U
Authority: CN
Inventors: 徐慧勇; 罗显平; 鲍军平; 罗浩; 刘建强
Original assignee: China Railway 12th Bureau Group Co Ltd; First Engineering Co Ltd of China Railway No 12 Bureau Group Co Ltd
Current assignee: China Railway 12th Bureau Group Co Ltd; First Engineering Co Ltd of China Railway No 12 Bureau Group Co Ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-04-10
Anticipated expiration: 2029-07-02

Abstract

The utility model belongs to the technical field of high-speed railway precast box girder bed frame construction, concretely relates to a transport hoist for hoisting bridge girder erection machine, it can't avoid taking place to twist and the focus changes makes to transport and hoist dangerous problem to have solved fortune frame roof beam all-in-one at hoist and mount in-process, the rectangle crossbeam including the level setting, the middle part rigidity of crossbeam bottom has first link, first link lower part is fixed with the second link, the second link is connected with bridge girder erection machine perpendicularly, the symmetry has adjusting screw between crossbeam and the bridge girder erection machine that is located second link both ends, be provided with the slide that is type structure in the crossbeam, be provided with first wire rope on the slide, first wire rope is connected with hoisting equipment, the symmetry is provided with the top push cylinder between crossbeam and slide, the one end of top push cylinder is fixed at the crossbeam top, the slide lateral part that is higher than the crossbeam top surface is fixed to the other end of top push. The utility model discloses the firm gentle combination of hoist, the potential safety hazard of stopping that can be better when accomplishing the hoist and mount task.

Description

A transport hoist for hoisting bridge girder erection machine

Technical Field

The utility model belongs to the technical field of the precast box girder bed frame construction of high-speed railway, concretely relates to a transport hoist for hoisting bridge girder erection machine.

Background

With the continuous development of high-speed rail construction in China, large prefabricated box girders become important components of engineering construction. After the box girder is prefabricated in a girder manufacturing field, a girder lifting machine is used for lifting the girder to be loaded on a bridge, a girder transporting vehicle is transported to an erection position, and finally, the box girder is erected on a bridge pier which is constructed completely by a bridge erecting machine to complete the whole process of laying and erecting. Because the existing bridge construction has more limitations and uncertainties, the existing construction mode has certain uncertainty. For example, the pier height is 22m, the box girder height is 2.635 m, the bridge girder erection machine height is 13.5m, and meanwhile, the requirement that the whole machine of the transportation and erection separation type bridge girder erection machine is assembled and lifted to a bridge floor is met, so that the passing requirement of the separation type bridge girder erection machine can be met only by 38.5 m of clearance, the height requirement cannot be met by the existing domestic girder lifting equipment, and the traditional method for building an ascending bridge slope has huge investment and seriously delays the construction period. The common method adopts wheel-rail beam lifting equipment to directly hoist the integrated beam transporting and erecting machine at the top of the precast box beam, so that beam transporting and beam erecting construction is realized. Because the existing lifting appliances are rigid lifting appliances, the transporting and erecting integrated machine can not avoid twisting and gravity center change in the lifting process, and certain danger exists in transporting and lifting.

Disclosure of Invention

The utility model discloses a solve fortune frame roof beam all-in-one and can't avoid taking place wrench movement and focus change at the hoist and mount in-process and make to transport and hoist and mount and have certain dangerous problem, provide a transport hoist for hoisting bridge girder erection machine.

The utility model discloses a realize through following technical scheme: the utility model provides a transport hoist for hoisting bridge girder erection machine, rectangular beam including the level setting, the cross-section of crossbeam is concave style of calligraphy structure, the middle part rigidity of crossbeam bottom has first link, first link lower part is fixed with the second link, the second link is connected with bridge girder erection machine perpendicularly, the symmetry has the regulation lead screw between crossbeam and the bridge girder erection machine that is located second link both ends, be provided with the slide that is convex style of calligraphy structure in the crossbeam, be provided with first wire rope on the slide, first wire rope is connected with lifting device, the symmetry is provided with the top push hydro-cylinder between crossbeam and slide, the one end of top push hydro-cylinder is fixed at the crossbeam top, the other end of top push hydro-cylinder is fixed at the slide lateral part that is higher than the crossbeam top surface.

The second link is fixed with the rectangle frame of perpendicular setting including the semi-circular base that is located the bottom on the semi-circular base, and rectangle frame top is fixed with the connecting plate, and the connecting plate is the level setting and opens on upper portion has a plurality of bolt holes, and wherein the circular arc section of semi-circular base sets up downwards and both ends symmetry is provided with the otic placode, is provided with on the otic placode to be used for with the fixed bolt hole of bridging machine.

The first connecting frame comprises two symmetrical horizontal plates, the two horizontal plates are provided with screw holes which are the same as the positions of the bolt holes of the connecting plate of the second connecting frame, a plurality of second steel wire ropes are vertically arranged between the horizontal plates, the upper ends of the second steel wire ropes are clamped and fixed with the cross beam through the upper horizontal plate, and the lower ends of the second steel wire ropes are clamped and fixed with the connecting plate through the lower horizontal plate. The bottom of the cross beam is fixedly welded with a bottom connecting plate, bolt holes in the same position are also formed in the bottom connecting plate, the fixing bolts on the bottom connecting plate are arranged, and the screw rods are vertically fixed downwards.

And the two ends of the adjusting screw rod are hinged with fixing seats, and the fixing seats are respectively fixed at the bottom of the cross beam and the top of the bridge girder erection machine.

Compared with the prior art, the utility model beneficial effect who has is:

the utility model has reasonable structure, and is connected with the hoisting equipment through the first steel wire rope arranged on the sliding seat, and is connected with the bridge girder erection machine through the adjusting lead screw and the second connecting frame respectively, thereby realizing the fixation of the lifting appliance and the bridge girder erection machine; meanwhile, a second steel wire rope arranged on the first connecting frame and the hinges of the adjusting screw rod, the cross beam and the bridge girder erection machine are respectively provided with a flexible adjustable part; the pushing oil cylinder arranged between the cross beam and the sliding seat can be matched with different kinds of bridge girder erection machine equipment. The utility model discloses the firm gentle combination of hoist, the potential safety hazard of stopping that can be better when accomplishing the hoist and mount task.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic side view of the structure of the present invention;

fig. 3 is a schematic diagram of a part of the structure in fig. 1.

Reference numbers in the figures: 1-a cross beam, 2-an adjusting screw rod, 3-a second connecting frame, 4-a bridge girder erection machine, 5-a sliding seat, 6-a first connecting frame, 7-a pushing oil cylinder, 8-a hoisting device, 9-a first steel wire rope, 10-a fixed seat, 11-a semicircular base, 12-a rectangular frame, 13-a second steel wire rope and 14-a fixing bolt.

Detailed Description

It is right to refer to fig. 1 ~ 3 the utility model discloses specifically explain, a transport hoist for hoisting bridge girder erection machine, rectangular cross beam 1 including the level setting, crossbeam 1's cross-section is concave character type structure, the middle part rigidity of crossbeam 1 bottom has first link 6, first link 6 lower part is fixed with second link 3, second link 3 is connected with bridging machine 4 perpendicularly, the symmetry has adjusting screw 2 between crossbeam 1 that is located second link 3 both ends and bridging machine 4, be provided with slide 5 that is convex character type structure in crossbeam 1, be provided with first wire rope 9 on the slide 5, first wire rope 9 is connected with lifting device 8, the symmetry is provided with top push cylinder 7 between crossbeam 1 and slide 5, the one end of top push cylinder 7 is fixed at crossbeam 1 top, the other end of top push cylinder 7 is fixed at the slide 5 lateral part that is higher than crossbeam 1 top surface.

The second link 3 is fixed with the rectangle frame 12 of perpendicular setting including the semi-circular base 11 that is located the bottom on the semi-circular base 11, and rectangle frame 12 top is fixed with the connecting plate, and the connecting plate is the level and sets up and open on upper portion has a plurality of bolt holes, and wherein the circular arc section of semi-circular base 11 sets up downwards and both ends symmetry is provided with the otic placode, is provided with on the otic placode to be used for with the fixed bolt hole of bridging machine 4. The first connecting frame 3 comprises two symmetrical horizontal plates, the two horizontal plates are provided with screw holes which are the same as the positions of the bolt holes of the connecting plate of the second connecting frame 3, a plurality of second steel wire ropes 13 are vertically arranged between the horizontal plates, the upper ends of the second steel wire ropes 13 are clamped and fixed with the cross beam 1 through the upper horizontal plate, and the lower ends of the second steel wire ropes 13 are clamped and fixed with the connecting plate through the lower horizontal plate. The both ends of adjusting lead screw 2 all articulate there is fixing base 10, and fixing base 10 is fixed respectively in the top position of 1 bottom of crossbeam and bridging machine 4. A fixing bolt 14 is inserted into the corresponding bolt hole and tightened for clamping and fixing the second wire rope 13.

The working process of the present invention is described below with reference to the embodiment using the integrated machine sleeve beam of the transporting frame beam:

the integrated transporting and erecting machine is a bridge erecting machine to be transported, and the erected bridge is a 900-ton prefabricated box girder.

Transporting 900 tons of prefabricated box girders to a specified position by using two 450 tons of wheel rail hoisting equipment; integrally opening the transportation frame beam to the front section of the 900-ton prefabricated box beam; utilize the utility model discloses the hoist hangs, fortune frame roof beam all-in-one with two 450 tons of wheel rails respectively is connected.

The gravity center position of the bridge girder erection machine is obtained according to calculation, the relative position of the telescopic adjusting slide seat 5 of the pushing oil cylinder 2 and the cross beam 1 is adjusted, the fixing seat at the top of the adjusting screw rod 2 is fixedly connected with the bottom of the cross beam 1 in advance, the semicircular base 11 of the second connecting frame 3 is fixed with the top of the bridge girder erection machine 4 through bolts, the fixing seats 10 are welded at the tops of the bridge girder erection machines 4 at the two ends of the semicircular base 11 along the vertical direction, the connection is tested after the connection is completed, and the bridge girder erection machine can be lifted after the connection is. In the hoisting process, if the bridge girder erection machine 4 slightly changes the gravity center due to slight twisting, the hinged parts of the flexible second steel wire rope 13 and the adjusting screw rod 2 can effectively eliminate uneven stress.

Furthermore, two 450-ton wheel-rail cranes are used for lifting the integrated transporting and erecting frame and beam machine and transporting the integrated transporting and erecting frame and beam machine to the position right above the prefabricated box beam with 900 tons by using the lifting appliance of the utility model; a 450-ton wheel-rail crane controls the falling of a lifting appliance, and a lifting trolley lifting rod of the transporting and erecting integrated machine is aligned and installed with a lifting hole of a 900-ton prefabricated box girder; and starting the beam transporting and erecting integrated machine and lifting 900 tons of prefabricated box beams to finish final beam transporting and frame laying construction.

Claims

1. The utility model provides a transport hoist for hoisting bridge girder erection machine, includes rectangle crossbeam (1) that the level set up, its characterized in that: the cross section of crossbeam (1) is concave structure, the middle part position of crossbeam (1) bottom is fixed with first link (6), first link (6) lower part is fixed with second link (3), second link (3) vertical connection has bridging machine (4), the symmetry has adjusting screw (2) between crossbeam (1) and bridging machine (4) that are located second link (3) both ends, be provided with slide (5) that are type structure in crossbeam (1), be provided with first wire rope (9) on slide (5), first wire rope (9) are connected with lifting device (8), the symmetry is provided with top push cylinder (7) between crossbeam (1) and slide (5), the one end of top push cylinder (7) is fixed at crossbeam (1) top, the other end of top push cylinder (7) is fixed at the slide (5) lateral part that is higher than crossbeam (1) top surface.

2. A transfer sling for lifting a bridge erecting machine according to claim 1, characterised in that: the second connecting frame (3) comprises a semicircular base (11) located at the bottom, a rectangular frame (12) which is vertically arranged is fixed on the semicircular base (11), a connecting plate is fixed at the top of the rectangular frame (12), the connecting plate is horizontally arranged, a plurality of bolt holes are formed in the upper portion of the connecting plate, lug plates are arranged downwards on the arc sections of the semicircular base (11) and symmetrically arranged at the two ends of the arc sections, and bolt holes used for being fixed with a bridge erecting machine (4) are formed in the lug plates.

3. A transfer sling for lifting a bridge erecting machine according to claim 2, characterised in that: the first connecting frame (6) comprises two symmetrical horizontal plates, the two horizontal plates are provided with screw holes which are the same as the positions of the bolt holes of the connecting plate of the second connecting frame (3), a plurality of second steel wire ropes (13) are vertically arranged between the horizontal plates, the upper ends of the second steel wire ropes (13) are clamped and fixed with the cross beam (1) through the upper horizontal plate, and the lower ends of the second steel wire ropes (13) are clamped and fixed with the connecting plates through the lower horizontal plate.

4. A transfer sling for lifting a bridge erecting machine according to claim 1, characterised in that: the two ends of the adjusting screw rod (2) are hinged with fixing seats (10), and the fixing seats (10) are fixed at the bottom of the cross beam (1) and the top of the bridge girder erection machine (4) respectively.