Hanging structure suitable for bridge erecting machine to erect beams in tunnel

Abstract

The utility model discloses a hanging structure suitable for a bridge erecting machine to erect a beam in a tunnel. The hanging structure is used for hanging a main beam connected with the bridge erecting machine below a column cross beam. The suspension mechanism comprises an upper bracket, an upper hinged support, a driving base and a transverse moving oil cylinder. The hanging structure suitable for girder erection in the tunnel of the bridge girder erection machine is applied to the road bridge girder erection machine, girder erection in the tunnel of the bridge girder erection machine is achieved, longitudinal movement and transverse movement of a main beam, longitudinal movement of a main body cross beam and erection of a small curve beam can be achieved, and the problems encountered in practical engineering of the bridge girder erection machine are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge erecting machines, in particular to a hanging structure suitable for erecting beams in a tunnel by a bridge erecting machine. Background Art

[0002] A bridge erecting machine is used for erecting prestressed reinforced concrete beam slabs of highway bridges. The bridge erecting machine is equipped with two main supporting legs for beam erection and traveling, and is also equipped with front and rear auxiliary supporting legs for the forward traveling of the bridge machine. The hanging device is an important part of a single-guide beam bridge erecting machine, and simultaneously hangs the main beam and the column cross beam. When erecting a beam, the upper part of the hanging device is connected to the column cross beam, and the lower part hangs the upper ear beam on the main beam. Devices such as a hanging weight trolley can travel on the lower ear beam of the main beam; when one main supporting leg travels forward, the remaining supporting legs support the main beam, and the hanging device runs on the upper part of the main beam to realize the traveling of the supporting legs.

[0003] In order to meet the need for erecting beam slabs at the tunnel entrance and entering the tunnel entrance, when the main supporting leg is in the tunnel, it is necessary to realize working conditions such as transporting beams, lifting beams, transverse shifting in place and lowering beams. At the same time, partial small-curve working conditions also need to be considered. The height of the beam transport vehicle, the height of the beam slab, the height of the hanging weight trolley, the height of the main beam and the height of the main column cross beam have basically reached the tunnel height. It is necessary to design a hanging mechanism suitable for beam erection in the tunnel that can simultaneously hang the main beam and the column cross beam by using a little space at the top. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a hanging structure suitable for erecting beams in a tunnel by a bridge erecting machine, which can simultaneously hang the main beam and the column cross beam in the bridge erecting machine, and can meet the construction requirements of on-site beam erection under complex working conditions to the greatest extent.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A hanging structure suitable for erecting beams in a tunnel by a bridge erecting machine, which is used to suspend the main beam connecting the bridge erecting machine below the column cross beam, and is characterized in that:

[0007] The main beam is longitudinally arranged, and upper ear beams protruding transversely are arranged on both sides of the upper end of the main beam, and racks are arranged on the outer sides of the upper ear beams;

[0008] The column cross beam spans above the main beam. The column cross beam is in a rectangular ring structure in the horizontal plane, has a rectangular opening, and transverse supporting beams are arranged on the inner walls of the opening;

[0009] The hanging structure further includes a suspension mechanism, and the suspension mechanism includes:

[0010] The upper support seat is rectangular, can be horizontally slidably embedded in the opening of the column cross beam, and is upwardly supported by the supporting beam. A circular positioning hole is opened at the central position of the upper support seat;

[0011] The upper hinge seat is located above the upper support seat. The longitudinal two ends of the upper hinge seat are arc-shaped end faces and are in contact with the inner wall of the opening of the column beam.

[0012] The driving seat includes two side beams and a top beam. The two side beams are longitudinally arranged on both sides of the main beam. The side beam has an inner extending beam extending below the upper ear beam of the main beam. The upper surface of the inner extending beam can be in rolling contact with the bottom surface of the upper ear beam of the main beam. A gear meshing with the corresponding side rack is also fixed on the side beam. The gear is connected with a motor driving its rotation. The top beam is transversely located above the main beam, and its two ends are fixed to the corresponding side beams. A positioning column matching the shape of the positioning hole is fixed at the upper end of the top beam. An ear seat is arranged above the positioning column. The ear seat extends upward into the upper hinge seat and is suspended in the upper hinge seat through a hinge shaft; and

[0013] The transverse movement oil cylinder is transversely arranged. Its fixed end is fixed to the column beam, and the telescopic end is fixed to the upper support seat.

[0014] A further technical solution lies in that the upper surface of the main beam has a longitudinally protruding upper guide rail, and the lower surface of the top beam has a protruding guide bar that cooperates with and contacts the upper guide rail.

[0015] A further technical solution lies in that the side beam is provided with a plurality of longitudinal movement guide wheels that are in rolling contact with the side surface of the main beam.

[0016] A further technical solution lies in that the part of the lower surface of the upper support seat in contact with the support beam is provided with a transverse movement wear plate.

[0017] A further technical solution lies in that the upper support seat is provided with a plurality of transverse movement guide wheels that are in rolling contact with the inner side surface of the opening of the column beam.

[0018] A further technical solution lies in that the support beam is provided with a rectangular sunken groove with an opening direction. The length direction of the sunken groove is longitudinally arranged. A plurality of rotatable balancing wheels are arranged in the sunken groove. The balancing wheels can be in rolling contact with the lower ear beam of the main beam.

[0019] A further technical solution lies in that the lower surface of the upper ear beam of the main beam is provided with an ear beam lower guide rail that can be in contact with the balancing wheels.

[0020] The beneficial effects produced by adopting the above technical solutions are as follows:

[0021] The hanging structure applicable to beam erection in the tunnel of the bridge erecting machine is applied to the highway bridge erecting machine, realizing beam erection in the tunnel by the bridge erecting machine. It can realize the longitudinal movement and transverse movement of the main beam, the longitudinal movement of the main body cross beam, and the erection of small-curve beams, solving the difficulties encountered in the actual engineering problems of the bridge erecting machine. Description of the Drawings

[0022] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] Figure 1 is a schematic structural diagram of the use of the present utility model;

[0024] Figure 2 is a schematic structural diagram of the suspension mechanism in the present utility model;

[0025] Figure 3 is a schematic structural diagram of the cooperation of the upper support seat, upper hinge seat and transverse movement oil cylinder in the present utility model;

[0026] Figure 4 is a schematic structural diagram of the upper support seat in the present utility model;

[0027] Figure 5 is a schematic structural diagram of the driving seat in the present utility model Figure 1 ;

[0028] Figure 6 is a schematic structural diagram of the driving seat in the present utility model Figure 2 ;

[0029] Figure 7 is a schematic structural diagram of the driving seat in the present utility model Figure 3 . Specific embodiments

[0030] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present utility model.

[0031] Many specific details are set forth in the following description in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model, and therefore the present utility model is not limited by the specific embodiments disclosed below.

[0032] As Figures 1 to 7 shown, a hanging structure suitable for erecting beams in a tunnel by a bridge erecting machine is used to suspend the main beam 01 connecting the bridge erecting machine below the column cross beam 02.

[0033] The main beam 01 and the column cross beam 02 are the main components of the bridge erecting machine. The main beam 01 is longitudinally arranged, and there are upper ear beams 011 protruding transversely on both sides of the upper end of the main beam 01. In the hanging structure, there are racks 012 outside the upper ear beams 011. The column cross beam 02 spans above the main beam 01. The column cross beam 02 has a rectangular ring structure in the horizontal plane and has a rectangular opening. There are transverse supporting beams 021 on the two inner walls of the opening. The setting of this opening provides a guiding slideway for the transverse movement of the main beam 01.

[0034] The hanging structure further includes a suspension mechanism. The suspension mechanism includes an upper support seat 10, an upper hinge seat 20, a driving seat 30, and a transverse movement oil cylinder 40.

[0035] The upper support seat 10 is rectangular and is slidably embedded in the opening of the column cross beam 02 and is supported upward by the supporting beam 021. A circular positioning hole 101 is provided at the central position of the upper support seat 10. In order to enhance the wear resistance when the upper support seat 10 moves transversely along the opening of the column cross beam 02, there is a transverse movement wear plate 102 at the part of the lower surface of the upper support seat 10 in contact with the supporting beam 021. The transverse movement wear plate 102 is detachably fixed to the upper support seat 10 by bolts or other means and can be replaced after a certain degree of wear to ensure the matching accuracy between various components.

[0036] The transverse movement oil cylinder 40 is located in the opening and is arranged transversely. Its fixed end is fixed to the column cross beam 02, and its telescopic end is fixed to the upper support seat 10.

[0037] The upper hinge seat 20 is located above the upper support seat 10. The two longitudinal ends of the upper hinge seat 20 are arc-shaped end faces, which are in contact with the inner wall of the opening of the column beam 02. The setting of the arc-shaped end faces enables the upper hinge seat 20 to rotate slightly within the opening. The driving seat 30 includes two side beams 310 and a top beam 320. The two side beams 310 are longitudinally arranged on both sides of the main beam 01. The side beam 310 has an inwards extending beam 330 that extends below the upper ear beam 011 of the main beam 01. The upper surface of the inwards extending beam 330 can rollingly contact the bottom surface of the upper ear beam 011 of the main beam 01. Specifically, on the supporting beam 021, there is a rectangular sunk groove with an opening direction. The length direction of the sunk groove is arranged longitudinally, and there are multiple rotatable balancing wheels 331 in the sunk groove. The balancing wheels 331 can rollingly contact the lower ear beam of the main beam 01. Moreover, on the lower surface of the upper ear beam of the main beam 01, there is an ear beam lower guide rail 014 that can contact the balancing wheels 331. When the main beam is placed on the hanging structure, the balancing wheels and the lower ear beam of the main beam are in line contact. When the main beam is subjected to a force of 180 tons, the local area of the line contact will be subjected to a large force. After a long working time, it will cause unevenness or compressive deformation at the track board in contact with it. In order to prevent affecting the entire lower ear beam structure, the lower guide rail 014 is provided. A gear 340 meshing with the corresponding side rack 012 is also fixed on the side beam 310. The height of the gear 340 is greater than the width of the rack 012, and the gear 340 is connected to a motor that drives its rotation.

[0038] The top beam 320 is transversely located above the main beam 01. Its two ends are fixed to the corresponding side beams 310. A positioning column 321 matching the shape of the positioning hole 101 is fixed at the upper end of the top beam 320. Above the positioning column 321, there is an ear seat 322. The ear seat 322 extends upwards into the upper hinge seat 20 and is suspended in the upper hinge seat 20 through a hinge shaft. Thus, the upper hinge seat 20 and the driving seat 30 are fixed together. And after the positioning column 321 cooperates with the positioning hole 101 on the upper support seat 10, the upper hinge seat 20 and the driving seat 30 can only rotate relative to the upper support seat 10 and have no displacement in other directions.

[0039] On the upper surface of the main beam 01, there is a longitudinally protruding upper guide rail 013. On the lower surface of the top beam 320, there is a protruding guide strip 323 that cooperates with and contacts the upper guide rail 013. Both the upper guide rail 013 and the guide strip 323 can be made of wear-resistant plates. Through the cooperation between the guide strip 323 and the upper guide rail 013, it provides guidance for the longitudinal displacement of the main beam 01 and reduces the contact area between the upper surface of the main beam 01 and the lower surface of the top beam 320, thereby reducing the friction force during relative longitudinal displacement.

[0040] In addition, there are multiple longitudinal displacement guide wheels 311 on the side beam 310 that rollingly contact the side surface of the main beam 01. On the upper support seat 10, there are multiple transverse displacement guide wheels 103 that rollingly contact the inner side surface of the opening of the column beam 02. It can ensure the stability during relative transverse displacement and longitudinal displacement.

[0041] When the main beam 01 needs to be horizontally moved, the legs connected to the column cross beam 02 are fixed, so that the column cross beam 02 is fixed. The struts under the main beam 01 contract, and the upper ear beam of the main beam 01 is hung on the balance wheel 331. The guide strip 323 on the lower surface of the top beam 320 is separated from the upper guide rail 013 on the upper surface of the main beam 01. There is a wear plate on the lower surface of the upper support seat 10, and there are lateral positioning devices on both sides of the column cross beam 02. When the horizontal movement oil cylinder 40 expands and contracts, the upper support seat 10 can move along the supporting beam 021 of the column cross beam 02. By means of the central positioning hole 101 of the upper support seat 10, the driving seat 30, the upper support seat 10 and the upper hinge seat 20 drive the main beam 01 to move horizontally together.

[0042] When the main beam 01 needs to be longitudinally moved, the legs connected to the column cross beam 02 are fixed, so that the column cross beam 02 is fixed. The struts under the main beam 01 contract, and the upper ear beam of the main beam 01 is hung on the balance wheel 331. The guide strip 323 on the lower surface of the top beam 320 is separated from the upper guide rail 013 on the upper surface of the main beam 01. Start the motor to rotate the gear 340 on the driving seat 30, and drive the rack 012 on the main beam 01 to have a longitudinal displacement through the gear 340, so that the main beam 01 longitudinally moves on the balance wheel.

[0043] When the column cross beam 02 needs to be longitudinally moved, the other legs on the main beam 01 support it to keep the main beam 01 fixed. The struts under the column cross beam 02 contract, and the lower surface of the column cross beam 02 will fall on the main beam 01. The guide strip 323 on the lower surface of the top beam 320 is in contact and cooperation with the upper guide rail 013 on the upper surface of the main beam 01. At this time, the upper ear beam on the main beam is separated from the balance wheel. Start the motor to rotate the gear 340 on the driving seat 30, and through the meshing transmission of the gear 340 and the rack 012, the longitudinal movement of the column cross beam 02 is realized.

[0044] Under the condition of a small curve, the upper support seat 10 and the column cross beam 02 are tilted along the beam erection curve. The upper hinge seat 20 has an arc-shaped structure longitudinally. The upper hinge seat 20 can drive the driving seat 30 and the main beam 01 to swing within a certain angle to realize the erection of a small curve beam.

[0045] The above is only the preferred embodiment of the present invention. Any simple modification, deformation and equivalent replacement made by anyone according to the content of the present invention fall within the protection scope of the present invention.

Claims

1. A hanging structure applicable to beam erection in tunnels by a bridge erecting machine, which is used to suspend the main beam (01) connecting the bridge erecting machine below the column cross beam (02), and is characterized in that: The main beam (01) is longitudinally arranged, and has transverse protruding upper ear beams (011) on both sides of the upper end of the main beam (01), and racks (012) on the outer sides of the upper ear beams (011); The column cross beam (02) spans above the main beam (01). The column cross beam (02) is in a rectangular ring structure in the horizontal plane, has a rectangular opening, and has transverse supporting beams (021) on the inner walls of the opening; The hanging structure further includes a suspension mechanism, and the suspension mechanism includes: The upper support seat (10) is rectangular, is slidably embedded in the opening of the column cross beam (02) horizontally, and is supported upward by the supporting beam (021). A circular positioning hole (101) is opened at the central position of the upper support seat (10); The upper hinge seat (20) is located above the upper support seat (10). The longitudinal ends of the upper hinge seat (20) are arc-shaped end faces and are in contact with the inner walls of the opening of the column cross beam (02); The driving seat (30) includes two side beams (310) and a top beam (320). The two side beams (310) are longitudinally arranged on both sides of the main beam (01). The side beam (310) has an inner extending beam (330) extending below the upper ear beam (011) of the main beam (01). The upper surface of the inner extending beam (330) can rollingly contact the bottom surface of the upper ear beam (011) of the main beam (01). A gear (340) meshing with the corresponding side rack (012) is also fixed on the side beam (310). The gear (340) is connected with a motor driving its rotation. The top beam (320) is horizontally located above the main beam (01), and its two ends are fixed to the corresponding side beams (310). A positioning column (321) matching the shape of the positioning hole (101) is fixed at the upper end of the top beam (320). An ear seat (322) is provided above the positioning column (321). The ear seat (322) extends upward into the upper hinge seat (20) and is suspended in the upper hinge seat (20) through a hinge shaft; and The transverse movement oil cylinder (40) is horizontally arranged, its fixed end is fixed to the column cross beam (02), and its telescopic end is fixed to the upper support seat (10).

2. The hanging structure according to claim 1, characterized in that: The upper surface of the main beam (01) has a longitudinally protruding upper guide rail (013), and the lower surface of the top beam (320) has a protruding guide bar (323) that cooperates with and contacts the upper guide rail (013).

3. The hanging structure according to claim 1, characterized in that, A plurality of longitudinal movement guide wheels (311) that rollingly contact the side surface of the main beam (01) are provided on the side beam (310).

4. The hanging structure according to claim 1, wherein The part of the lower surface of the upper support seat (10) in contact with the supporting beam (021) has a transverse movement wear plate (102).

5. The hanging structure according to claim 1, characterized in that, A plurality of transverse movement guide wheels (103) that rollingly contact the inner side surface of the opening of the column cross beam (02) are provided on the upper support seat (10).

6. The hanging structure according to claim 1, characterized in that, The joist (021) has a rectangular sunk groove with an opening direction. The length direction of the sunk groove is arranged longitudinally, and a plurality of rotatable balance wheels (331) are provided in the sunk groove, and the balance wheels (331) can be in rolling contact with the lower ear beam of the main beam (01).

7. The hanging structure according to claim 6, wherein, The lower surface of the upper ear beam of the main beam (01) has an ear beam lower guide rail (014) that can be in contact with the balance wheel (331).

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