Novel high-speed railway fixed-point hoisting bridge girder erection machine

Abstract

The utility model discloses a novel high-speed railway fixed-point hoisting bridge girder erection machine which comprises a main frame, a front supporting leg, a middle supporting leg and a rear supporting leg, and the front supporting leg, the middle supporting leg and the rear supporting leg are all arranged on the main frame. Wherein the middle supporting leg and the rear supporting leg are of the same structure, the rear supporting leg comprises a beam body structure and a walking device, the walking device is a rubber tire type walking device, the cross section of the beam body structure is of a horseshoe-like structure with a large upper part and a small lower part, and the bottom of the beam body structure is connected with the walking device. The bottom opening distance of the beam body structure is set to be larger than the width of the beam transporting vehicle. The utility model can solve the problems of low construction efficiency, single function, poor safety and the like of the traditional girder erecting and transporting construction, improve the construction quality and efficiency, and promote the smooth operation of railway box girder construction.

Description

Technical Field

[0001] The utility model relates to the field of railway bridges, in particular to a novel 40m-1000t high-speed railway fixed-point lifting bridge erecting machine. Background Art

[0002] In railway bridge construction, bridge erection machines are a key piece of equipment used to erect box girders and other important components of bridges. Traditional bridge erection machines mainly move on rails and run on temporary tracks. These machines play an important role in the construction of small single-track bridges to complex high-speed railway bridges. However, with the development of railway bridge construction technology, the problems of insufficient safety, poor stability and low flexibility of traditional bridge-building machines have become increasingly apparent, and they cannot meet the needs of large-scale construction sites. Therefore, it is very necessary to study a new type of 40m-1000t high-speed railway fixed-point lifting bridge-building machine to overcome the following shortcomings of the current box girder erection method of railway bridges: 1) The box girder needs to be prefabricated in the beam yard and then transported to the bridge construction site. This process is not only time-consuming, but also has high requirements on transportation routes and conditions; 2) The cross-span stability of traditional bridge-building machines is insufficient; when spanning a large distance or facing severe weather conditions such as strong winds, the existing bridge-building machines are not stable enough, which may cause the bridge components to swing or be inaccurately positioned, which directly affects the quality and safety of bridge construction; 3) Traditional bridge-building machines need to use a beam-supporting trolley when taking beams. This method not only limits the application of the machine in complex terrain or under specific conditions, but also fails to achieve accurate fixed-point beam taking, thereby affecting construction efficiency and accuracy. Utility Model Content

[0003] The purpose of the utility model is to provide a new type of high-speed railway fixed-point lifting bridge erecting machine, which can solve the problems of low construction efficiency, single function, poor safety, etc. of traditional beam erection and transportation, improve construction quality and efficiency, and promote the smooth progress of railway box girder construction.

[0004] The technical solution adopted by the utility model to solve this technical problem is: a new type of high-speed railway fixed-point lifting bridge erecting machine, comprising: a main frame, front legs, middle legs and rear legs, wherein the front legs, middle legs and rear legs are all arranged on the main frame;

[0005] Among them, the middle support leg and the rear support leg have the same structure, the rear support leg includes a beam structure and a walking device, the walking device is a rubber tire type walking device, the cross-section of the beam structure (in the direction of the bridge width) is a horseshoe-like structure with a larger upper part and a smaller lower part, the bottom of the beam structure is connected to the walking device, and the bottom opening distance of the beam structure is set to be larger than the width of the beam transport vehicle to ensure that the beam transport vehicle can pass smoothly.

[0006] Preferably, the front legs, the middle legs and the rear legs are all provided with hydraulic support devices, so as to stably support the bridge erecting machine on the beam surface.

[0007] Preferably, it further comprises a first main overhead travelling carriage and a second main overhead travelling carriage which are arranged on the main frame.

[0008] Preferably, the front legs are connected to the main frame via a plug-in pin device.

[0009] Preferably, the front legs are provided with hanging wheels, and the hanging wheels are arranged on the main frame so as to be movable by a traveling motor.

[0010] Preferably, a ball joint is installed at the bottom of the main frame, and the bottom of the ball joint is detachably connected to the installed bridge.

[0011] Preferably, the distance between the middle legs and the rear legs exceeds 40 meters.

[0012] The utility model at least has the following beneficial effects:

[0013] 1) Convenience: The rubber tire outriggers used in this design provide greater convenience than traditional rail-mounted outriggers. The use of rubber tire outriggers reduces the need for laying rails, allowing the bridge crane to be more flexibly moved and positioned at the construction site, thereby improving convenience of use.

[0014] 2) Construction efficiency: This design greatly improves construction efficiency by directly transporting beams to the bottom of the bridge erection machine through the beam transport vehicle and realizing fixed-point beam picking. The application of the bridge erection machine in this application reduces the transfer and handling time of beams, ensuring faster and more accurate positioning and installation of beams. Compared with traditional bridge erection machines, this type of bridge erection machine that directly transports beams to the site significantly shortens the construction time and improves the overall project progress.

[0015] 3) Economical: Due to the use of rubber tires, there is no need to lay tracks on the beam surface, which not only saves construction time and improves construction efficiency, but also reduces economic expenditure and improves the economic efficiency of the project.

[0016] 4) Over-span stability: The extended design of the bridge erector significantly improves its over-span stability, making it possible to construct on a wider span. This extended design reduces the swaying and instability that may occur during large-span construction, enhances the stability of the overall structure, and thus improves the safety and quality of the project.

[0017] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the main view of the utility model of a new type of high-speed railway fixed-point lifting bridge erecting machine;

[0019] Figure 2 It is a cross-sectional view of the rear outriggers of the utility model for a new type of high-speed railway fixed-point lifting bridge erecting machine.

[0020] Figure 3 It is an enlarged view of the ball joint and the tire of the utility model.

[0021] In the figure: 1 main frame; 2 front support leg; 3 middle support leg; 4 rear support leg; 41 beam structure; 42 walking device; 5 first main overhead crane; 6 second main overhead crane; 7 hanging wheel; 8 walking motor; 9 plug-in and pull-out pin device; 10 ball joint. DETAILED DESCRIPTION

[0022] The utility model is described in detail and completely below in conjunction with the accompanying drawings. A person of ordinary skill in the art will be able to implement the utility model based on these descriptions. Before describing the utility model in conjunction with the accompanying drawings, it should be particularly pointed out that the technical solutions and technical features provided in each part of the utility model, including the following description, can be combined with each other without conflict.

[0023] In addition, the embodiments of the present invention involved in the following description are generally only a part of the embodiments of the present invention, rather than all of the embodiments. Therefore, based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0024] The following is a further detailed description of the utility model in conjunction with the accompanying drawings and implementations, and its specific implementation process is as follows:

[0025] like Figures 1 to 3 As shown, the utility model provides a novel high-speed railway fixed-point lifting bridge erecting machine, comprising: a main frame, front legs, middle legs and rear legs, wherein the front legs, middle legs and rear legs are all arranged on the main frame;

[0026] Among them, the middle leg and the rear leg have the same structure, the rear leg includes a beam structure and a walking device, the walking device is a rubber tire type walking device, the cross-section of the beam structure is a horseshoe-like structure with a large upper part and a small lower part, the bottom of the beam structure is connected to the walking device, and the bottom opening distance of the beam structure is set to be larger than the width of the beam transport vehicle. In this embodiment, the bridge-erecting machine uniquely uses the rubber tires of the middle leg and the rear leg as mobile supports, so that it can travel by rubber tires when running without load, without the need to lay tracks, greatly improving the flexibility and applicability of the machine. In addition, when performing beam erection operations, the legs are converted into a stable support system to ensure the safety and accuracy of the operation. The bridge-erecting machine has reached new levels in construction efficiency, safety and applicability, providing a more efficient, flexible and stable solution for high-speed railway bridge construction.

[0027] This technical solution can also include the following technical details to better achieve the technical effect: the tail of the main frame is lengthened so that the distance between the middle leg and the rear leg exceeds 40 meters. This structural optimization not only allows the 40-meter-long box girder to be directly transported between the legs to achieve fixed-point lifting, but also greatly enhances the stability when crossing the span by shifting the center of gravity backward.

[0028] This technical solution may also include the following technical details to better achieve the technical effect: the front legs, middle legs and rear legs are all provided with hydraulic support devices.

[0029] The technical solution may also include the following technical details to better achieve the technical effect: it also includes a first main overhead crane and a second main overhead crane arranged on the main frame.

[0030] The technical solution may also include the following technical details to better achieve the technical effect: the front legs are connected to the main frame via a plug-in pin device.

[0031] The technical solution may also include the following technical details to better achieve the technical effect: a hanging wheel is arranged on the front supporting leg, and the hanging wheel is arranged on the main frame so as to be movable through a walking motor.

[0032] The present technical solution may also include the following technical details to better achieve the technical effect: a ball joint is installed at the bottom of the main frame, and the bottom of the ball joint can be detachably connected to the installed bridge.

[0033] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation scheme. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the embodiments shown and described herein.

Claims

1. A new type of high-speed railway fixed-point lifting bridge erecting machine, characterized in that: include: A main frame, front legs, middle legs and rear legs, wherein the front legs, middle legs and rear legs are all arranged on the main frame; Among them, the middle support leg and the rear support leg have the same structure, the rear support leg includes a beam structure and a walking device, the walking device is a rubber tire type walking device, the cross-section of the beam structure is a horseshoe-like structure with a larger upper part and a smaller lower part, the bottom of the beam structure is connected to the walking device, and the bottom opening distance of the beam structure is set to be larger than the width of the beam transport vehicle.

2. The new high-speed railway fixed-point lifting bridge erecting machine as claimed in claim 1 is characterized in that: The front outriggers, middle outriggers and rear outriggers are all provided with hydraulic support devices.

3. The new high-speed railway fixed-point lifting bridge erecting machine as claimed in claim 1 is characterized in that: The main frame also includes a first main overhead travelling carriage and a second main overhead travelling carriage.

4. The novel high-speed railway fixed-point lifting bridge erecting machine as claimed in claim 1 is characterized in that: The front legs are connected to the main frame via a plug-in pin device.

5. The novel high-speed railway fixed-point lifting bridge erecting machine as claimed in claim 1 or 4, characterized in that: The front legs are provided with hanging wheels, and the hanging wheels are arranged on the main frame so as to be movable through a walking motor.

6. The novel high-speed railway fixed-point lifting bridge erecting machine as claimed in claim 1 is characterized in that: A ball joint is installed at the bottom of the main frame, and the bottom of the ball joint is detachably connected to the installed bridge.

7. The novel high-speed railway fixed-point lifting bridge erecting machine as claimed in claim 1 is characterized in that: The distance between the middle outrigger and the rear outrigger is more than 40 meters.

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