CN210439160U

CN210439160U - Traveling type hanging basket for steel bridge suspension splicing construction

Info

Publication number: CN210439160U
Application number: CN201920534973.1U
Authority: CN
Inventors: 孙磊; 秦永强; 朱新华; 刘治国; 巨创; 蒋巍; 陈盟
Original assignee: China Railway Baoji Bridge Group Co Ltd
Current assignee: China Railway Baoji Bridge Group Co Ltd
Priority date: 2019-04-19
Filing date: 2019-04-19
Publication date: 2020-05-01
Anticipated expiration: 2029-04-19

Abstract

The utility model relates to a had both had safe firm, simple structure, facilitate the use, had the manual walking that is used for steel bridge roof beam to hang the piece together construction that can realize the construction platform slides again and hang the basket, hung mechanism, running gear, stopper by hanging the basket and constitute, the assembly pulley of running gear lower extreme with hang the basket and hang track sliding fit in the mechanism, the stopper is fixed at the track both ends. The advantages are that: the structure is stable, the system is complete, multiple hoisting points are stressed, the bearing load is larger, the use process is safe and reliable, the moving process is stable, and the safety factor is higher; secondly, the manufacture, the installation and the use are simple and convenient, the use is very convenient, the installation is in place only once, and the working efficiency is greatly improved.

Description

Traveling type hanging basket for steel bridge suspension splicing construction

Technical Field

The utility model relates to a had both had safe firm, simple structure, facilitate the use, had the manual walking that is used for steel bridge roof beam to hang the basket of piecing together the construction that can realize the construction platform and slide again, belong to large-scale steel bridge roof beam and hang and piece together construction equipment and make the field.

Background

In the process of assembling the cantilever, the steel structure bridge is particularly used for structures of railway truss bridges, plate type girder bridges, superposed girder bridges of transverse and longitudinal girder systems and the like, and because a temporary support is lacked below a bridge floor, a fixed construction operation platform is difficult to set up, and a construction area is generally in a suspended state. The staff need arrive below the bridge floor and accomplish work such as location, welding, bolt, application, inspection, and the operation degree of difficulty is very big, and there is very big potential safety hazard in the work progress. In the prior construction, a node is taken as a unit, and a large number of single hanging baskets are required to be manufactured and fixed on a bridge floor. The tool consumes more steel, the covered working range is limited, the universality is not strong, and the adjustment must be made according to the change of the structure; the single-point hanging basket can only be hung on a steel beam, temporary connection is arranged on the steel beam, integrity is lacked, rigidity is insufficient, large shaking is easy to generate in the construction process, and construction safety risk is very large; in addition, the hanging basket needs to be frequently moved in the construction process, and is rearranged by means of large-scale hoisting equipment, so that the effective working time is occupied, and the working efficiency is influenced.

Disclosure of Invention

The design purpose is as follows: the traveling type hanging basket for the steel bridge suspension assembly construction has the advantages that the defects in the background technology are avoided, the traveling type hanging basket is safe, stable, simple in structure and convenient to use, and the construction platform can slide manually.

The design scheme is as follows: in order to achieve the above design objectives. The utility model discloses in structural design, combine the structural feature of girder steel, designed one kind and can hang in the breast, the construction platform that can glide manually. The device is safe and stable, simple in structure and convenient to use, and can better serve construction and inspection work in steel beam erection and installation. The device mainly comprises a suspension mechanism, a walking mechanism and a brake, and is shown in figure 1. The suspension mechanism provides an operation platform (a suspension basket) for constructors, the structural size is designed according to the space of the bottom of a bridge structure and construction requirements, and the rail is used as a part of the suspension mechanism of the suspension basket; the walking mechanism is divided into two parts, which are composed of a hook and a pulley block and are respectively connected by bolts when in use. The hook is detachable in a split mode, one end of the hook is fixedly connected to the flange plate of the beam in a hanging and clamping mode, the other end of the hook is connected with the pulley block, all the parts are connected through bolts and are arranged according to the beam structure of the steel beam, and the positions of the hook can be changed in a detachable mode. The rail of the suspension mechanism penetrates into the pulley block to realize longitudinal movement; the brake stop dog is made according to the track size, and the mechanism of waiting to hang is equipped with arrestment mechanism respectively at the assembly pulley front, rear end after removing to the station, and fastening bolt top is in track web both sides tightly, plays limiting displacement, prevents that the basket of hanging hangs that the mechanism use slides.

The principle is as follows: combining the structural characteristics of the bottom of a steel beam bridge deck system, designing and manufacturing a suspension mechanism, a hook and a pulley block, firstly designing and arranging each suspension point, sequentially installing a travelling mechanism and a suspension mechanism, and arranging a brake after the suspension mechanism and the suspension mechanism are installed in place. The utility model discloses it lies in to be different from conventional walking dolly: the device adopts the idea of 'vehicle-rail integration and rail movement along with wheels', and a movable lifting point is formed by utilizing the hook and the pulley block, which is equivalent to a movable passage which can be long or short and is erected for a trolley suspension mechanism. According to the construction requirement, constructors can adjust the lifting points of the travelling mechanisms and can move the suspension mechanisms manually to reach construction stations.

The technical scheme is as follows: a traveling type hanging basket for steel bridge suspension splicing construction comprises a hanging basket hanging mechanism, a traveling mechanism and brakes, wherein a pulley block at the lower end of the traveling mechanism is in sliding fit with a track in the hanging basket hanging mechanism, and the brakes are fixed at two ends of the track.

Compared with the background technology, the utility model has the advantages that firstly, the device has stable structure, complete system, multi-hanging-point stress, larger bearing load, safe and reliable use process, stable moving process and higher safety factor; the device is simple and convenient to manufacture, install and use as a temporary tool for site construction, is very convenient to use, only needs to be installed in place once, avoids the problems of repeated installation and movement of a common hanging basket, saves time and labor, only depends on manpower during movement, can provide more continuous working surfaces while saving the consumption of steel products, and greatly improves the working efficiency; thirdly, the device has simple structure and stronger universality and applicability, can design the running mechanism form, the suspension mechanism size and the arrangement hoisting point of the trolley according to different structural characteristics (a transverse girder system, an orthotropic bridge deck, a plate type structure and the like) and construction needs of the steel bridge, and has flexible and variable form.

Drawings

Fig. 1 is an overall schematic diagram of a walking type hanging basket structure for steel bridge erection.

Fig. 2 is a diagram of a hanging basket suspension mechanism.

Fig. 3 is a schematic diagram of a cradle travelling mechanism.

Fig. 4 is a brake diagram.

FIG. 5 is a schematic view of the installation and use of the walking trolley.

Detailed Description

Example 1: reference is made to fig. 1-5. A traveling type hanging basket for steel bridge suspension splicing construction is composed of a hanging basket hanging mechanism 1-1, a traveling mechanism 1-2 and a brake 1-3, wherein a pulley block 3-2 at the lower end of the traveling mechanism 1-2 is in sliding fit with a rail 2-2 in the hanging basket hanging mechanism 1-1, and the brake 1-3 is fixed at two ends of the rail 2-2. The hanging basket suspension mechanism 1-1 is composed of a hanging basket 2-1 and rails 2-2, and the two rails 2-2 are fixed on the two sides of the upper port of the hanging basket 2-1 along the length direction. The traveling mechanism 1-2 is composed of a hook 3-1, a pulley block 3-2 and a bolt 3-3, the pulley block 3-2 is connected with the lower end of the hook 3-1 by the bolt 3-3, and the upper end of the hook 3-1 is a clamping wing plate with an opening in the middle and clamping grooves on two sides of the opening. A plurality of reinforcing rib plates are transversely arranged on the hook body below the opening at the middle part of the upper end of the hook 3-1. The clamping wing plate is formed by overlapping two plates with grooves on one side, and a through reinforcing rib plate and a fixing bolt are arranged at the overlapping part. The brake 1-3 is composed of a stop block 4-1 and a fastening bolt 4-2, the lower part of the stop block 4-1 is of a through groove structure, bolt thread holes are formed in two walls of the groove, the fastening bolt 4-2 penetrates through the two walls of the groove respectively, the bolt thread holes are formed in the two walls of the groove and are abutted to two sides of a rail web plate, and the stop block 4-1 is locked on the rail 2-2.

The use of the orthotropic bridge deck of the steel truss bridge is taken as an example for explanation:

step 1: the method comprises the following steps of determining the structural characteristics of a bridge deck beam, determining the size of a walking trolley, determining the size (length, width and height) of a hanging basket 2-1 of a suspension mechanism to meet construction requirements and passing clearance requirements, determining the size of a hook 3-1 of the walking mechanism according to the width of a flange plate at a hanging point, and mainly referring to the width design of the beam flange plate and a lower chord joint plate; the brake stoppers 4-1 are designed according to the size of the rail, the number of the brake stoppers is not less than 4, and the brake stoppers are symmetrically arranged.

Step 2: the hanging basket of the hanging mechanism needs to be firmly welded, the straightness of the track is ensured, the integral structure has certain rigidity, and meanwhile, the integral quality needs to be reasonably controlled. According to the weight of the cradle, the additional load in the construction process and the number of lifting points under the worst condition, the material and the thickness (not less than 16 mm) of a steel plate of the hook of the travelling mechanism are selected, and the size of the pulley block is determined.

And 3, step 3: and (5) finishing the manufacture of each part and carrying out field installation. The first installation needs the help of hoisting equipment, firstly a group of hooks 3-1 and pulley blocks 3-2 are installed at the first beam, then the hanging mechanism is hoisted to the position of the beam end pulley, the rail is slowly sent to the position between the pulleys to slide inwards, when the position of the second beam is reached, the hooks and the pulley blocks are installed and fixed, the hanging basket 1-1 of the hanging mechanism is continuously sent to the front end by utilizing a crane, the installation of all the hooks and the pulley blocks at the hanging points is completed in this order, and finally, a hanging basket system capable of freely moving longitudinally is formed. After the hanging basket is installed in place, the front end and the rear end of the hanging basket are respectively provided with brakes 4-1 and 4-2, so that the position of the hanging basket is ensured to be fixed.

And 4, step 4: in the use process, the hanging basket can move forwards without the help of hoisting equipment and by manpower. Firstly, a hook and a pulley block of a rear end travelling mechanism are arranged in front, then a chain block is arranged on a steel beam and a hanging basket and tightened along the longitudinal advancing direction, and then the trolley can freely travel.

And 5, step 5: in order to fully ensure the safety in the use and moving process, anti-falling and anti-sliding steel wire ropes are arranged at the front end and the rear end of the trolley suspension mechanism and are reliably connected with the main body steel beam in the moving process so as to prevent the trolley from sliding forwards and backwards.

It is to be understood that: although above-mentioned embodiment is right the utility model discloses a design has done more detailed word description, but these word descriptions, are only right the utility model relates to a simple word description of idea, rather than right the utility model relates to a restriction of idea, any do not surpass the utility model relates to a combination, increase or the modification of idea all fall into the utility model discloses a within the protection scope.

Claims

1. A traveling type hanging basket for steel bridge suspension splicing construction is characterized by comprising a hanging basket hanging mechanism (1-1), a traveling mechanism (1-2) and a brake (1-3), wherein a pulley block (3-2) at the lower end of the traveling mechanism (1-2) is in sliding fit with a track (2-2) in the hanging basket hanging mechanism (1-1), and the brake (1-3) is fixed at two ends of the track (2-2).

2. The traveling type hanging basket for steel bridge hanging assembly construction according to claim 1, wherein: the hanging basket hanging mechanism (1-1) is composed of a hanging basket (2-1) and rails (2-2), and the two rails (2-2) are fixed on the two sides of the upper port of the hanging basket (2-1) along the length direction.

3. The traveling type hanging basket for steel bridge hanging assembly construction according to claim 1, wherein: the traveling mechanism (1-2) is composed of a hook (3-1), a pulley block (3-2) and a bolt (3-3), the pulley block (3-2) is connected with the lower end of the hook (3-1) through the bolt (3-3), and the upper end of the hook (3-1) is a clamping wing plate with an opening in the middle and clamping grooves on two sides of the opening.

4. The traveling type hanging basket for the steel bridge suspension splicing construction according to claim 3, wherein the traveling type hanging basket comprises: a plurality of reinforcing rib plates are transversely arranged on the hook body below the opening at the middle part of the upper end of the hook (3-1).

5. The traveling type hanging basket for steel bridge hanging assembly construction according to claim 1, wherein: the clamping wing plate is formed by overlapping two plates with grooves on one side, and a through reinforcing rib plate and a fixing bolt are arranged at the overlapping part.

6. The traveling type hanging basket for steel bridge hanging assembly construction according to claim 1, wherein: the brake (1-3) is composed of a stop block (4-1) and a fastening bolt (4-2), the lower portion of the stop block (4-1) is of a through groove structure, bolt thread holes are formed in two walls of the groove, the fastening bolt (4-2) penetrates through the two walls of the groove respectively, the bolt thread holes are formed in the two walls of the groove and are abutted to two sides of a rail web plate, and the stop block (4-1) is locked on the rail (2-2).