CN214401419U - Tower top hanging bracket for mounting stay cable tower end - Google Patents

Abstract

The utility model relates to a suspension cable tower end installation top of tower gallows, including the portal, four hoists, the portal level sets up to be fixed on the pylon top, the portal mainly is formed by two crossbeams and the concatenation of two longerons, four hoists set up the tip at two longerons respectively, parallel arrangement portal horizontal pole is again respectively in the outside of two crossbeams, every portal horizontal pole sets up the hoisting point slider respectively at both ends, the hoisting point slider can be on place portal horizontal pole lateral sliding, every hoisting point slider below hangs the assembly pulley, every portal horizontal pole is the refastening respectively and is set up two directive wheels, directive wheel and hoisting point slider one-to-one on the every portal horizontal pole, four hoists and four directive wheels are with diagonal relation one-to, the wire rope that the hoist was emitted leads the assembly pulley below the corresponding hoisting point slider through the directive wheel. The lifting point slide block as the main lifting point is arranged on the gantry cross rod in a sliding manner, so that the transverse position of the lifting point is adjusted, and the device is suitable for lifting stay cables at different anchor pipe orifices.

Description

Tower top hanging bracket for mounting stay cable tower end

Technical Field

The utility model relates to an install the top of tower gallows at the tower end for draw of suspension cable.

Background

The tower top support is arranged after the tower column is capped, and the tower top support mainly has the functions of providing a tower top construction platform and providing a high-altitude lifting point for a platform outside the tower. Generally, when concrete is poured at the tower top closing end, an embedded part is positioned according to the external dimension of a steel support, and after the top of the tower is closed, the whole tower top support is integrally lifted to the top of the tower by a tower crane to be connected with the embedded part. The tower top support is used as a main stressed component for hoisting the HDPE and the platform outside the tower, and the sufficient strength and the support stability are kept.

The cable-stayed bridge tower top support disclosed by the publication number CN208280026U comprises a working platform, wherein the lower surface of the working platform is just fixed with two supporting components, two lateral anti-falling frames are just arranged between the two supporting components, the connecting line of the two supporting components is perpendicular to the connecting line of the two lateral anti-falling frames, and a tower top accommodating space is enclosed between the two supporting components and the two lateral anti-falling frames. Technical scheme more than adopting, the top of column is located the top of the tower accommodation space, and work platform is spacing through two supporting components and two side direction anticreep framves installation, and work platform is difficult for taking place to remove, and support stability is better.

For a cable-stayed bridge, one bridge tower corresponds to a plurality of stay cables with different lengths, heights and stay cable angles, the stay cables need a tower top hanging bracket for auxiliary traction in the traction process, 4 windlasses and steel wire ropes are widely adopted at the tower top at present to realize the requirement of four-point simultaneous hoisting, and the starting point of the steel wire rope is fixed and is easy to scrape and collide with the stay cables which are installed in a traction manner in consideration of the characteristic of spatial arrangement of the stay cables of the A-shaped tower.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a to above-mentioned prior art improve four hoisting point top of the tower gallows of current, change four fixed wire rope hoisting points into the wire rope hoisting point of four activities, can be in order to produce to scrape according to the different anchor pipe mouth positions of every suspension cable, the horizontal adjustment hoisting point, avoid wire rope to the suspension cable of installation to bump.

The utility model provides a technical scheme that above-mentioned problem adopted does: a tower top hanging bracket installed at the tower end of a stay cable comprises a portal frame and four windlasses, wherein the portal frame is horizontally arranged and fixed at the top end of a bridge tower through an inclined strut, the gantry is mainly formed by splicing two cross beams and two longitudinal beams, four winches are respectively arranged at the end parts of the two longitudinal beams, gantry cross rods are respectively arranged on the outer sides of the two cross beams in parallel, each gantry cross rod is respectively provided with a hanging point slide block at two ends, the hoisting point sliding blocks can transversely slide on the gantry cross bars, a pulley block is suspended below each hoisting point sliding block, each gantry cross bar is respectively and fixedly provided with two steering wheels, the steering wheels on each gantry cross bar correspond to the hoisting point sliding blocks one by one, four winches correspond to the four steering wheels one by one in a diagonal relationship, and the steel wire rope released by the winch is guided to the pulley block below the corresponding hoisting point sliding block through the corresponding steering wheel.

Preferably, the steering wheels are fixed pulleys and are respectively installed at the end parts of the gantry cross bars nearby.

Preferably, the wire rope is wound three times on the pulley block.

Compared with the prior art, the utility model has the advantages of:

(1) this application sets up the portal horizontal pole again in the portal outside, and the hoisting point slider that will regard as main hoisting point slides and sets up on the portal horizontal pole, and adjustable wire rope's horizontal position from this to this hoist and mount that adapts to the orificial suspension cable of different anchors.

(2) Four windlasses and four directive wheels set up to the opposite angle, make whole top of tower gallows more steady.

Drawings

FIG. 1 is a top view of an overhead hanger according to an embodiment of the present invention;

FIG. 2 is a plan view of an overhead hanger according to an embodiment of the present invention;

fig. 3 is a partial schematic view of a suspension point slider according to an embodiment of the present invention;

in the drawings

1 top of bridge tower

2 longitudinal beam

3 Cross member

4 gantry cross bar

5 hoisting machine

6 steering wheel

7 hoisting point slider

8 pulley blocks.

Detailed Description

The invention will be described in further detail with reference to the following examples, which are given by way of illustration and are intended to be illustrative of the invention and should not be construed as limiting the invention.

The tower top hanging bracket is installed at the end of the stay cable tower and comprises a portal frame and four windlasses 5, wherein the portal frame is horizontally arranged and fixed at the top end 1 of the bridge tower through inclined struts, and the portal frame is mainly formed by splicing two cross beams 3 and two longitudinal beams 2 and is of a frame-shaped structure. Four windlasses 5 set up respectively at the tip of two longerons 2, and the outside of two crossbeams 3 is parallel arrangement portal horizontal pole 4 again respectively, and every portal horizontal pole 4 sets up hoisting point slider 7 respectively at both ends, and hoisting point slider 7 can be in order to change the lateral position on portal horizontal pole 4 horizontal slip in place.

A pulley block 8 is suspended below each lifting point sliding block 4, each pulley block 8 comprises a fixed pulley and a movable pulley, and a steel wire rope is wound on each pulley block 8 for three circles, so that stress and steering of the steel wire rope are distributed.

Each gantry cross rod 4 is further fixedly provided with two steering wheels 6, the steering wheels 6 on each gantry cross rod 4 correspond to the hoisting point sliding blocks 7 one by one, and the steering wheels 6 are fixed pulleys and are arranged on the inner sides of the hoisting point sliding blocks 7, so that the steel wire rope discharged from the winch is guided to the pulley blocks 8 below the hoisting point sliding blocks 7.

Four winches 5 correspond to four steering wheels 6 in a diagonal relationship one by one, so that the steel wire ropes at the top of the tower are shaped like a Chinese character '#', and the steel wire ropes discharged by the winches are guided to the pulley blocks 8 below the corresponding hoisting point sliding blocks 7 through the corresponding steering wheels.

Although the preferred embodiments of the present invention have been described in detail hereinabove, it should be clearly understood that modifications and variations of the present invention are possible to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (3)

1. The utility model provides a suspension bracket at top of tower is installed to suspension cable tower end, includes portal, four hoists, the portal level sets up and fixes on the bridge tower top through the bracing, the portal mainly forms its characterized in that by two crossbeams and two longerons concatenations: four winches are respectively arranged at the end parts of the two longitudinal beams, gantry cross rods are respectively arranged on the outer sides of the two transverse beams in parallel, each gantry cross rod is respectively provided with a hanging point sliding block at two ends, the hanging point sliding blocks can transversely slide on the gantry cross rod where the hanging point sliding blocks are located, a pulley block is suspended below each hanging point sliding block, each gantry cross rod is respectively and fixedly provided with two steering wheels, the steering wheels on the gantry cross rods correspond to the hanging point sliding blocks one to one, the four winches correspond to the four steering wheels one to one in a diagonal relationship, and steel wire ropes discharged by the winches are guided to the pulley blocks below the corresponding hanging point sliding blocks through the corresponding steering wheels.

2. The stay cable tower end mounting tower top hanger of claim 1, wherein: the steering wheels are fixed pulleys and are respectively installed at the end parts of the gantry cross bars nearby.

3. The stay cable tower end mounting tower top hanger of claim 1, wherein: and the steel wire rope is wound on the pulley block for three circles.

Images