CN213709203U

CN213709203U - Climbing device for jacking

Info

Publication number: CN213709203U
Application number: CN202021897184.3U
Authority: CN
Inventors: 陈海洲; 高良; 刘中华
Original assignee: Zhejiang Jinggong Steel Structure Group Co Ltd
Current assignee: Zhejiang Jinggong Steel Structure Group Co Ltd
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2021-07-16
Anticipated expiration: 2030-09-03

Abstract

The utility model provides a climbing device for jacking, which is arranged on a climbing rod and relates to the technical field of self-lifting, wherein the climbing rod comprises tracks distributed on the climbing rod and hoops sleeved on the climbing rod and needing to be jacked; the crawler comprises a hydraulic oil cylinder and a lockable foot, the top of a piston rod of the hydraulic oil cylinder is connected with a hoop to be jacked, the bottom of the hydraulic oil cylinder is connected with the lockable foot, and the contractible foot is arranged on the track and can be locked or loosened on the track; every pole climbs and is provided with four crawlers at least, and when two crawlers locked the jack-up, two crawlers unclamped in addition. The utility model is used for climbing device, when setting up, be provided with two climbing devices on the every climbing pole at least, when a climbing device locking jack-up, another climbing device unclamped, consequently can realize promoting certainly (jacking), does not need artifical supplementary, can be the jacking in succession, and efficiency is very high, and guarantees that structure and climbing device are connected and safe at will.

Description

Climbing device for jacking

Technical Field

The utility model relates to a crawl device for jacking belongs to from promoting technical field.

Background

Along with the development of economy and science and technology, the income per capita is continuously improved, tourism becomes one of the ways of leisure and entertainment in the daily life of the national people, simple natural scenery cannot meet the scenery of many people, more people want to enjoy the natural scenery, and meanwhile, the scenery has a plurality of different visual angles and stimulation, for example, when standing on a cliff to see the scenery, people can move forward, but because the cliff itself is used as a scenic spot for tourism and sightseeing without protective measures, the scenery is monotonous and dangerous, a sightseeing bridge can be erected between two cliffs, tourists can walk on the bridge, the tourists can be enabled to be seemed as if being in the air, and the safety of the tourists in the scenic area can be ensured while sensory stimulation is provided for the tourists.

However, since the sightseeing bridge needs to be arranged on two cliffs, the sightseeing bridge is very dangerous to manufacture, install and construct, the construction is very difficult, and the construction period is long. Therefore, through special research, the applicant develops a rotary jacking method to reduce the difficulty of bridge construction, improve the construction efficiency, shorten the construction period and ensure the safety. Therefore, a device for jacking, namely a creeper, is needed.

The present application was made based on this.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned defect that exists among the prior art, the utility model provides a crawl device for jacking can realize promoting certainly (jacking), does not need artifical supplementary, can jacking in succession, and efficiency is very high.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a climbing device for jacking is arranged on a climbing rod, wherein the climbing rod comprises rails distributed on the climbing rod and hoops sleeved on the climbing rod and needing to be jacked; the crawler comprises a hydraulic oil cylinder and a lockable foot, the top of a piston rod of the hydraulic oil cylinder is connected with a hoop to be jacked, the bottom of the hydraulic oil cylinder is connected with the lockable foot, and the lockable foot is arranged on the track and can be locked or loosened on the track; every pole climbs and is provided with four crawlers at least, and when two crawlers locked the jack-up, two crawlers unclamped in addition.

Furthermore, four tracks are uniformly distributed at intervals, four crawlers are arranged, and one crawler is arranged on each corresponding track.

The utility model has the advantages of:

the utility model is used for climbing device, when setting up, be provided with two climbing devices on the every climbing pole at least, when a climbing device locking jack-up, another climbing device unclamped, consequently can realize promoting certainly (jacking), does not need artifical supplementary, can be the jacking in succession, and efficiency is very high, and guarantees that structure and climbing device are connected and safe at will.

Drawings

Fig. 1 is a schematic view of the overall structure of a large-span monoclinic arch cable-stayed landscape bridge according to this embodiment;

fig. 2 is a side view of the large-span monoclinic arch cable-stayed landscape bridge according to the embodiment;

fig. 3 is a schematic structural view of the main arch of the large-span monoclinic arch cable-stayed landscape bridge of the embodiment being jacked by the rotary jacking device of the embodiment;

FIG. 4 is a schematic view of the connection between the rotary jacking device and the main arch according to the present embodiment;

fig. 5 is an enlarged view of the connection between the rotary jacking device and the main arch according to the embodiment (including the crawler according to the embodiment);

fig. 6 to 9 are schematic views illustrating a process of rotating the jacking bridge deck beam;

fig. 10 to 11 are schematic views illustrating a process of rotating and jacking up a main arch (a bridge deck beam together with its own weight).

Description of the labeling: the device comprises a bridge deck beam 1, a main arch 2, a main arch support 21, a main arch foundation 22, a rotary jacking device 3, a steel column (climbing rod) 31, a steel column support 32 (hinged support), a steel column foundation 33, a rail 34, a crawler 4, a hydraulic oil cylinder 41, a locking foot 42, a hoop 43, a stress claw 44 and a structural cable 5.

Detailed Description

In order to make the technical means and the technical effects achieved by the technical means of the present invention clearer and more complete, the following embodiments are provided and are described in detail with reference to the accompanying drawings as follows:

the crawler for jacking in the embodiment can be applied to a rotary jacking device shown in fig. 3, and comprises a steel column, a steel column foundation which is rotatably connected with the bottom of the steel column and is positioned on the ground, a crawler arranged on the steel column (climbing rod), an anchor ear which is connected with the top of the crawler and is sleeved on the steel column, and a stressed claw which is rotatably connected with the anchor ear; the stressed claws are used for connecting the arch or the bridge deck of the bridge. The rotary jacking device is integrally applied to a large-span monoclinic arch cable-stayed landscape bridge as shown in figures 1 and 2, and the landscape bridge comprises a main arch, a main arch foundation, a bridge surface beam and a plurality of structural cables, wherein the main arch foundation is rotationally connected with two ends of the main arch and is positioned on the ground; a design angle of 100-120 degrees is formed between the main arch and the bridge surface beam; two foundations of the main arch are respectively arranged on the edges of the two cliffs, and the main arch and the bridge surface beam span the two cliffs.

As shown in fig. 3 to 5, the climbing device for jacking of the present embodiment is mounted on a climbing rod, where the climbing rod includes a track distributed on the climbing rod and an anchor ear sleeved on the climbing rod and needing to be jacked; the crawler comprises a hydraulic oil cylinder and a lockable foot, the top of a piston rod of the hydraulic oil cylinder is connected with a hoop to be jacked, the bottom of the hydraulic oil cylinder is connected with the lockable foot, and the lockable foot is arranged on the track and can be locked or loosened on the track; each climbing rod is at least provided with two crawlers, and when one crawler is locked and jacked, the other crawler is loosened. The locking method of the lockable foot can be used for holding by applying enough pressure to the track, so that the acting force from the hoop is smaller than the friction force between the lockable foot and the track, and the locking can be realized.

Preferably, in this embodiment, four tracks are uniformly distributed at intervals, four crawlers are provided, and one crawler is provided on each corresponding track. Four crawlers divide into two pairs (the front and back is a pair, control and be a pair) and work respectively, when a pair of crawlers locking track was synchronous jacking, another pair unclamped, when a stroke was accomplished in the jacking, this pair of crawlers of locking jacking originally unclamped, but the locking foot of this pair of crawlers of unclamping originally was held tightly, carries out the jacking of next stroke to guarantee that all there are two crawlers and steel column to link to each other at every moment. The stress balance can be ensured while enough stress is ensured.

The rotary jacking method of the rotary jacking device in the embodiment comprises the following steps: the rotary jacking device is characterized in that the rotary jacking bridge deck beam is rotatably driven to rotate to an included angle with the main arch to form a design included angle, the rotary jacking device is converted to the main arch, the rotary jacking device is rotated to rotate to the main arch through the rotation of the steel column and the advancing of the crawler along the steel column, the rotary jacking main arch is realized, and the bridge deck beam and the main arch rotate simultaneously to the design position.

In addition, as shown in fig. 6 to 11, the crawler for the rotary jacking device of the present embodiment can be applied to jacking work in the construction process of a large-span monoclinic arch cable-stayed landscape bridge, and the landscape bridge is constructed by the following method (high altitude vertical rotary construction method), which mainly comprises the following steps:

(1) the bridge deck beams and the main arches are horizontally assembled in place on the mountain tops, and the bridge deck beams are positioned above the main arches;

(2) vertically rotating the bridge deck beam to form a designed included angle with the main arch, and tensioning the structural cable (in the process, the included angle between the bridge deck beam and the main arch is gradually increased until the designed included angle is formed, and the structural cable is gradually tensioned);

(3) the main arch is vertically rotated, the bridge deck beam rotates along with the main arch due to self weight, and the main arch and the bridge deck beam reach the designed positions at the same time.

And (3) before the step (1), a rotary jacking device is arranged at the top of the mountain, and the rotation of the bridge surface beam in the step (2) and the rotation of the main arch in the step (3) are realized through the rotary jacking device.

And (3) in the step (2), when the bridge deck beam and the main arch rotate to a designed angle, welding the rotating joints of the bridge deck beam and the main arch to form rigid connection.

Wherein, between step (1) and step (2), still include a step: horizontal guy cable devices are arranged at two ends of the main arch; the two ends of the main arch are connected with the main arch foundation through the supports, the supports on the two sides of the main arch are connected with the upper horizontal inhaul cables when the main arch is rotated, the horizontal thrust of the supports of the main arch on the foundations on the two sides is offset through different tension control, and the tension is inconsistent in each rotating process and needs to be adjusted at any time.

In the step (3), when the main arch and the bridge deck beam rotate to the designed positions, the support of the main arch is welded with the main arch foundation to form rigid connection, and the whole bridge is constructed in place.

The above is a detailed description of the technical solutions provided in connection with the preferred embodiments of the present invention, and it should not be assumed that the embodiments of the present invention are limited to the above description, and it will be apparent to those skilled in the art that the present invention can be implemented in a variety of ways without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides a crawl device for jacking installs on climbing rod, its characterized in that: the climbing rod comprises rails distributed on the climbing rod and hoops sleeved on the climbing rod and needing to be jacked; the crawler comprises a hydraulic oil cylinder and a lockable foot, the top of a piston rod of the hydraulic oil cylinder is connected with a hoop to be jacked, the bottom of the hydraulic oil cylinder is connected with the lockable foot, and the lockable foot is arranged on the track and can be locked or loosened on the track; every pole climbs and is provided with four crawlers at least, and when two crawlers locked the jack-up, two crawlers unclamped in addition.

2. The crawler for jacking as recited in claim 1 wherein: four tracks are uniformly distributed at intervals, and one crawler is arranged on each corresponding track.