CN2337186Y

CN2337186Y - Hoisting machine for ecrecting bridge flooring

Info

Publication number: CN2337186Y
Application number: CN 98238114
Authority: CN
Inventors: 曹阳
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-06-30
Filing date: 1998-06-30
Publication date: 1999-09-08
Anticipated expiration: 2008-06-30

Abstract

The utility model discloses a hoisting machine for erecting bridge panels. A set of supporting bars is fixedly connected with a cross beam below the cross beam. Large walking wheels are arranged on the tracks of the cross beam. A main beam driving wheel train is arranged on the large walking vehicle, and a wheel shaft unit of the large walking vehicle is axially connected with a shaft box and a shaft rack. A longitudinal girder at the bottom of a main beam is provided with the tracks, and the tracks of the girder are arranged on the lower driving wheels. Two longitudinal girders on the top part of a girder rack are also provided with the tracks, and the hoisting machine is arranged on the tracks of the girders on the top part through base wheels. The utility model has the characteristics of simple structure, small hoisting working area, convenient operation, short construction period, high speed and low cost and is a novel and peculiar hoisting apparatus for erecting bridge panels.

Description

Viaduct concrete bridge plate hoisting machine

The utility model relates to a kind of hoisting machine, more specifically to a kind of viaduct concrete bridge plate hoisting machine, belongs to the bridge span erecting machine class, is applicable to the lifting of viaduct (bridge) concrete slab and T type beam.

Along with the development of society, viaduct (bridge) begins to build in many cities.Often long several kilometers to tens kilometers of viaducts (bridge), and the large-scale stress concrete bridge plate weight of giving all reaches about 20 to 30 tons.Like this, the handling of concrete bridge plate is installed and is just seemed particularly important, directly influences the speed of building and the quality of road and bridge.At present, the bridge pier of viaduct is that the cast of on-the-spot formwork is made, and the bridge deck of viaduct are normally finished in that precasting yard is prefabricated, and then carries out on-the-spot handling and install, and has easy construction, the cycle is short, cost is low, quality is good, do not influence the characteristics of traffic.But after bridge deck are transported to the scene, need be mobile crane collaborative work more than 30 tons, could hang on bridge pier to bridge deck with two lifting capacities.And the position of jenny repeatedly, caused that working area is big, lifting time length, construction and installation expense height, troublesome poeration, make people feel very inconvenient.

The purpose of this utility model provides a kind of viaduct concrete bridge plate hoisting machine, and it not only can remove the trouble that bridge deck are installed in the mobile crane handling from, and working area is little, the lifting time short, low, the flexible and convenient operation of construction and installation expense.

The purpose of this utility model is achieved in that it comprises control device, jack lift and front and back crossbeam, it is characterized in that the last plane of crossbeam vertically is fixed with track, and the support bar that a group length is adjustable is affixed with crossbeam below crossbeam; The walking cart is provided with the return pulley of band drive unit, the return pulley of walking cart place with the vertically affixed track of cantilever beams on; The top of walking cart car body is provided with the girder drive train, and the axle set of girder drive train is coupling with the axle box and the pedestal that are fixed on the car body; Girder is connected into by two English trusses arranged side by side, and the longitudinal girder of two English truss bottoms of girder places on the following driving wheel of girder drive train; Two longitudinal girders at two English truss tops of girder are provided with track, and two jack lifts are sat by return pulley and placed on the track at truss top.

Owing to adopted such scheme, when building viaduct, can remove the trouble that concrete bridge plate is installed with the mobile crane handling from, have simple in structure, the lifting operation area is little, easy to operate, the short characteristics that speed is fast, expense is low of engineering time, is a kind of novelty and the viaduct concrete bridge plate hanging device that shows unique characteristics.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is a viaduct concrete bridge plate hoisting machine structure chart;

Fig. 2 is a hoisting machine lateral cross section organigram;

Fig. 3 is a walking cart part section constructional drawing;

Fig. 4 is the vertical view of Fig. 3.

In Fig. 1-4, crossbeam 6 has former and later two, is identical box-girder, becomes with welded steel plate.Steel track 5 vertically with crossbeam 6 on the plane be connected with bolt.There is pop-up 7 and the base 9 that is threaded at the two ends of support bar 8, and support bar 8 is established five altogether, and support bar 8 is fixing with crossbeam 6 vertical welding by pop-up 7 below crossbeam 6.The car body 4 usefulness steel plates of walking cart are welded into rectangular box-shaped, the return pulley 15 of band bilateral wheel rim is equipped with in the below of walking cart, on the wheel shaft in the right side return pulley outside, sprocket wheel 30 is housed also, sprocket wheel 30 be fixed on car body 4 tops and be connected by return pulley drive unit 31 chains that motor, gearbox constitute, return pulley 15 places on the track 5 on plane on the crossbeam 6; The top of walking cart car body 4 also is provided with the girder drive train of two symmetries, and the two ends that are welded on car body 4 of two axle box 21 symmetries of girder drive train also are fixed with the pedestal 32 of two symmetries on the top board of the car body 4 at two axle box 21 middle parts.The following driving wheel 3 of four belt wheel edge is contained in the both sides and following driving shaft 23 stationary fits of two following driving shafts 23 respectively, two axle heads of following driving shaft 23 are connected by bearing with axle box 21 and pedestal 32 respectively, also stud with gear 29 on the following driving shaft 23 in axle box 21, gear 29 is meshing with the travelling gear 28 in the axle box 21, top in axle box 21 also has same and driving cog 28 gears 27 of splicing with last driving shaft that mesh, two both sides and last driving shaft stationary fits of going up driving wheel 14 at last driving shaft of belt wheel edge.Top at two pedestals 32 of main drive wheel system also has a clamping wheel shaft 25 that is connected with two pedestals, and pinch wheels 24 is installed in two ends and 25 stationary fits of clamping wheel shaft that clamp wheel shaft 25.Two following driving shafts 23 link into an integrated entity by the shaft coupling of band chain wheel 26, and the girder drive unit that is made of motor, reduction box is connected with sprocket wheel 26 on the following driving shaft 23 by chain.Girder 12 is connected into by crossbeam by two English trusses arranged side by side, four longitudinal girders of two English truss bottoms of girder 12 are i-beam track 22, four tracks 22 of girder 12 lower ends place respectively on four following driving wheels 3, pinch wheels 24 is affixed on the upper surface of two tracks 22, and girder 12 stable seats are put on driving wheel 3 under four girders on the walking cart car body 4.Be welded with track 18 equally on two longitudinal girders at two English truss tops of girder 12, jack lift 2 is sat respectively on two long rails 18 that place the truss top by return pulley 17.

During work, the base 9 of support bar 8 is connected with the pre-buried deposited bolt in bridge pier bent cap 16 tops respectively, and two crossbeams 6 are separately fixed at the top of two adjacent bridge pier capping beams 16 by support bar 8, crossbeam 6 also be connected with prevent from vertically to rock tiltedly draw 13.Four tracks 22 of girder 12 bottoms of two English truss structures place respectively under the girder on the driving wheel 3, again will be in two pinch wheels 24 on the same axle by clamping the top that wheel shaft 25 is contained in two pedestals 32, girder 12 two middle tracks are stuck in the train of the big roof of walking, can only under the control of

driving wheel

3,14, vertically move.When lifting bridge deck 33, by control device 10 with seat place girder 12 tops about two jack lifts 2 move to the interior side lock of two adjacent bridge pier 16 belows respectively, make girder by the center of original one independent trolley concentrate stressed change near the dispersion of two fulcrums stressed, greatly reduce the moment of flexure of girder 12, sling the respectively end of concrete bridge plate 33 (or T type beam) of two jack lifts 2 makes girder 12 follow crossbeam 6 by control walking cart drive unit 31 again and laterally moves and lay bridge deck 33 until being paved with.When need are laid the bridge deck of next bridge pier, need hoisting machine is moved to right.At first the drive unit 31 by control device 10 control walking carts makes girder 12 move on to the middle part of beam 6, and the junction plate of walking cart car body 4 sides and the junction plate at crossbeam 6 middle parts are linked together with bolt.By control girder drive unit 32, make girder 12 parallel moving to right again, when moving on to next bridge pier,, make girder 12 fixing by support 1 again at the bridge pier falsework 1 of putting on the shelf.At this moment remove the bolt on the fixing base 9 of front beam support bar 8 and bridge pier bent cap 16 again, base 9 and bridge pier bent cap 16 are broken away from.By control girder drive unit 32 driving wheel 14 is rotated, at this moment girder 2 is motionless, and walking cart band front beam 6 and moved to right along girder 12, and is to the bent cap 16 of next bridge pier, that front beam 6 is fixing.Move on that bridge pier that front beam just left rear cross beam fixing with identical way again.Open the Bolt Connection of walking cart and crossbeam, next new working cycles just can be carried out in locking girder 12, the position of adjusting twice cranes 2.

Claims

1. viaduct concrete bridge plate hoisting machine, it comprises control device, jack lift and front and back crossbeam, it is characterized in that the last plane of crossbeam vertically is fixed with track, the support bar that a group length is adjustable is affixed with crossbeam below crossbeam; The walking cart is provided with the return pulley of band drive unit, the return pulley of walking cart place with the vertically affixed track of cantilever beams on; The top of walking cart car body is provided with the girder drive train, and the axle set of girder drive train is coupling with the axle box and the pedestal that are fixed on the car body; Girder is connected into by two English trusses arranged side by side, and the longitudinal girder of two English truss bottoms of girder places on the following driving wheel of girder drive train; Two longitudinal girders at two English truss tops of girder are provided with track, and two jack lifts are sat by return pulley and placed on the track at truss top.

2. viaduct according to claim 1 concrete bridge plate hoisting machine, pop-up and base is characterized in that being threaded at its two ends of said support bar.

3. viaduct according to claim 1 concrete bridge plate hoisting machine is characterized in that in said girder drive train for also being provided with driving shaft on the top of axle box, two both sides and last driving shaft stationary fit of going up driving wheel at last driving shaft of belt wheel edge.