CN206529701U - Traversing deviation correcting device during steel truss girder pushing tow - Google Patents

Abstract

The utility model discloses a lateral movement correction device in the pushing process of a steel truss girder, which comprises a sliding block, a fixing block and a limiter. The sliding block includes two rectangular load-bearing bodies, and a There are three partitions, and the load-bearing body includes an upper block, a lower block and vertical blocks on both sides. Steel strand holes are provided on the outside of the vertical block. A sandwich rubber plate is connected above the upper block, and a A MEG board is provided, and a limiting block is arranged on the outside of the MEG board. The height of the lower edge of the limiting block is lower than the height of the lower plane of the MEG board. The limiting device is two jacks, and the two jacks are arranged on the fixed block. On the top, the tops of the two jacks bear against the outer sides of the two lower pads respectively. The utility model has reasonable design, simple structure, and has the functions of synchronization on both sides, single-side single-action, single-point single-action and jog limit. Well, long life.

Description

The lateral movement correction device in the process of steel truss girder pushing

technical field

The utility model belongs to the field of bridge construction equipment. In particular, it relates to a lateral movement correction device in the pushing process of steel truss girders.

Background technique

In the process of bridge construction, sometimes a multi-point jacking frame is used to try to erect the steel truss girder from the front pier to the rear pier, and the steel truss girder is assembled on the assembly platform by using a large crawler crane. After the assembly is completed, the whole is dragged toward the rear pier until the steel girder is in place. Due to the large span of the steel truss girder, it is easy to produce a large displacement under the action of stress and temperature difference, which requires constant adjustment of the position. The existing device structure Complicated, after long-term use, the friction coefficient of the contact surface decreases, which affects the effect of deflection correction, and the construction quality is difficult to control.

Contents of the invention

In order to solve the above problems, the utility model discloses a lateral movement correction device in the pushing process of the steel truss girder, which has a reasonable design, a simple structure, and has the functions of synchronous on both sides, single-action on one side, single-point single-action and jog limit functions. Good effect and long service life.

In order to achieve the above object, the technical scheme of the utility model is as follows:

The lateral movement correction device during the pushing process of the steel truss girder is characterized in that it includes a slider, a fixed block and a stopper. The slider includes two rectangular load-bearing bodies, and three spacers are arranged between the two load-bearing blocks. The load-bearing body includes an upper block, a lower block, and vertical blocks on both sides. Steel strand holes are provided on the outside of the vertical block. A sandwich rubber plate is connected above the upper block, and MEG is provided under the lower block. plate, the outer side of the MEG board is provided with a limit block, the height of the lower edge of the limit block is lower than the height of the lower plane of the MEG plate, the limiter is two jacks, and the two jacks are arranged on the fixed block. The tops of the two jacks bear against the outer sides of the two lower pads respectively.

As an improvement of the utility model, reinforcing ribs are provided inside the load-bearing body.

As an improvement of the utility model, the width of the lower pad is greater than that of the upper pad.

As an improvement of the utility model, the limiting block is a block.

As an improvement of the utility model, the plug of the jack is planar.

As an improvement of the utility model, the thickness of the sandwich rubber plate is 30mm.

The beneficial effects of the utility model are:

The lateral movement correction device in the pushing process of the steel truss girder described in the utility model uses the MEG slider to reduce the friction coefficient, uses the limit plate to position the slider on the upper limit of the slideway beam, and sets the jack on the temporary support slideway On the beam, the deflection correction of the steel truss girder members during the pushing process is reasonable in design and simple in structure. It has the functions of synchronous on both sides, single-side single-action, single-point single-action and jog limit functions. The deviation correction effect is good and the service life is long.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a top view of the utility model.

List of reference signs:

1. Slider, 2. Fixed block, 3. Limiter, 4. Partition plate, 5. Upper block, 6. Lower block, 7. Upright block, 8. Sandwich rubber plate, 9. MEG plate, 10 , limit block, 11, the top of the jack, 12, reinforcing ribs, 13, slideway beam.

detailed description

The utility model will be further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the utility model and are not intended to limit the scope of the utility model. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer ” refer to directions towards or away from the geometric center of a particular part, respectively.

As shown in the figure, the lateral movement correction device in the pushing process of the steel truss girder described in the utility model includes a slider 1, a fixed block 2 and a limiter 3, and the slider includes two rectangular load-bearing bodies, Three partitions 4 are arranged between the two load-bearing blocks, and the load-bearing body includes an upper pad 5, a lower pad 6, and two side vertical blocks 7, and steel strand holes are provided on the outside of the vertical block 7, and the upper pad 5, a sandwich rubber plate 8 with a thickness of 30 mm is connected to the top, and a MEG plate 9 is provided under the lower pad 6, and a limit block 10 is provided on the outside of the MEG plate, and the height of the lower edge of the limit block is lower than the height of the lower plane of the MEG plate. The width of the lower cushion block 6 is greater than that of the upper cushion block 5. The stopper 3 is two jacks, and the two jacks are arranged on the fixed block. of the outer side.

In the lateral movement correction device in the pushing process of the steel truss girder described in the utility model, the slider 1 is installed on the slideway beam 13, and the upper surface of the slider 1 is in contact with the bottom plate of the steel beam node to support the entire weight of the steel beam. The upper part of the upper block 5 is connected with a sandwich rubber plate 8 to buffer the pressure. The steel strand hole on the outer side of the vertical block 7 is connected with the steel strand. The MGE plate 9 is installed under the slider, which is in contact with the slideway beam 13. Since the MGE plate 9 has a rigid Strong and small dynamic friction coefficient, etc., so it is applied to the bottom of the slider where the steel beam assembly and the slideway support produce relative displacement. When the horizontal force is applied to the horizontal top to do work forward, because the friction coefficient at the bottom of the slider is small, the horizontal force overcomes the friction force to Move forward to achieve the function of steel beam displacement. The slider is about 1.1 meters long and 1.2 meters wide. There are 3 partitions 4 between the sliders. The height of the vertical block 7 is about 0.88 meters. The gravity of the steel beam is transmitted to the slider through the vertical block 7 Then it is transmitted to the slideway beam. The slider 1 reserves a hole for passing through the steel strand. The slider 1 is supported at the node of the steel truss beam and moves with the movement of the steel truss beam. The upper limit of the slideway beam 13, one end of the fixed block 2 is welded on the temporary support slideway beam 13, and the other end is connected to a jack, and the horizontal deviation correction jack is used to correct the deviation of the steel truss beam member during the pushing process. The utility model has a reasonable design, The structure is simple, with two-side synchronization, one-side single-action, single-point single-action and jog limit functions, good deviation correction effect and long service life.

The inside of the load-bearing body of the utility model is provided with reinforcing ribs 12 to increase the strength.

The limiting block 10 of the utility model is a block, which can better limit the position.

The jack head 11 of the jack described in the utility model is planar, has the largest contact area, and improves the deviation-correcting effect.

The dividing plate 4 described in the utility model is an I-beam, and the connection is firm.

The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features.

Claims (6)

1. the traversing deviation correcting device during steel truss girder pushing tow, it is characterised in that：Including sliding block, fixed block and limiter, institute Stating sliding block is included provided with three pieces of dividing plates between two rectangular weight bodies, two bearing blocks, the weight body include upper cushion block, The sandwich rubber slab of connection, underlay above steel strand wires hole, the upper cushion block are provided with the outside of lower cushion block and two edge-on pieces, the vertical block Block lower section, which is provided with the outside of MEG plates, MEG plates, is provided with limited block, and the lower edge of the limited block is highly less than the lower plane height of MEG plates Degree, the limiter is two jack, and described two jack are arranged on fixed block, and the top of two jack is pushed up respectively The firmly lateral surface of two lower cushion blocks.

2. the traversing deviation correcting device during steel truss girder pushing tow according to claim 1, it is characterised in that：The weight body Inside is provided with reinforcement.

3. the traversing deviation correcting device during steel truss girder pushing tow according to claim 1, it is characterised in that：The lower cushion block Width is more than upper cushion block width.

4. the traversing deviation correcting device during steel truss girder pushing tow according to claim 1, it is characterised in that：The limited block For square.

5. the traversing deviation correcting device during steel truss girder pushing tow according to claim 1, it is characterised in that：The jack Top be plane.

6. the traversing deviation correcting device during steel truss girder pushing tow according to claim 1, it is characterised in that：The sandwich rubber The thickness of offset plate is 30mm.