Pre-pressing counter-force device suitable for cantilever bridge fabrication machine

Abstract

The utility model relates to a prepressing counterforce device suitable for a cantilever bridge fabrication machine, which comprises a fixing rod group and a bearing base, fixing structures are arranged on two sides of the bearing base, and a pressure output device is arranged between the fixing structures and the bearing base; the fixing structures are symmetrically arranged; the fixing structure comprises a fixing rack, the fixing rack comprises an upper fixing cross beam and a lower fixing cross beam, and the upper fixing cross beam and the lower fixing cross beam are connected through a connecting beam; the bearing base comprises bearing cross beams which are symmetrically arranged, and the bottoms of the bearing cross beams are connected through bearing bottom beams; the fixed end of the pressure output device is placed on the top of the bearing beam. The pre-pressing test device is suitable for the pre-pressing test of the bridge fabrication machine, the pre-pressing test can be conveniently and accurately carried out to obtain the pre-pressing deformation only by setting parameters of the hydraulic jack for any bridge fabrication machine, the use is simple, the operation is convenient, the working efficiency of field detection personnel is greatly improved, the pre-pressing detection time is shortened, and the potential safety hazard is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bridge manufacturing technical field relates to the pre -press reaction force device suitable for cantilever bridge -building machine. BACKGROUND

[0002] In recent years along with the development of intelligent, automation equipment, traditional hanging basket has gradually fallen behind, already can not satisfy the demand of modernization equipment, therefore many enterprises have proposed cantilever bridge -building machine equipment, this equipment can realize automatic walking, automatic stripping and other functions, greatly improve work efficiency. To guarantee the safety and reliability of equipment, after the installation of cantilever bridge -building machine needs to carry out trial operation and pretest, and currently pretest mainly relies on crane to hoist concrete block on bridge -building machine, but pretest usually needs to simulate multiple loads, when hoisting concrete block needs crane multiple times, not only time -consuming and labor -intensive, but also there is a security risk. SUMMARY

[0003] The utility model discloses a pre -press reaction force device suitable for cantilever bridge -building machine can solve above -mentioned problem, and reduce the security risk.

[0004] According to the technical scheme provided by the utility model: a pre -press reaction force device suitable for cantilever bridge -building machine, including fixed rod group and bearing base, the both sides of bearing base are equipped with fixed structure, and the fixed structure is equipped with pressure output device between bearing base, the fixed structure is symmetrically arranged, and the fixed structure includes fixed rack, and the fixed rack includes upper fixed crossbeam and lower fixed crossbeam, and the both are connected through the link beam, and the bearing base includes the bearing crossbeam that is symmetrically arranged, and the bearing crossbeam bottom is connected through the bearing bottom beam, and the fixed end of pressure output device is placed at the top of bearing crossbeam, and the mobile end of pressure output device is vertically upwards and stops at the bottom of lower fixed crossbeam.

[0005] As a further improvement of the utility model, the fixed rod group includes upper fixed rod group and lower fixed rod group, and the upper fixed rod group and the lower fixed rod group are both composed of connecting rods.

[0006] As a further improvement of the utility model, the upper fixed rod group and the lower fixed rod group are precast in the block on the pier.

[0007] As a further improvement of the utility model, the number of bearing bottom beams is one.

[0008] As a further improvement of the utility model, the bearing bottom beam is distributed with the reinforced plate.

[0009] As a further improvement of the utility model, the pressure output device is hydraulic jack.

[0010] As a further improvement of the utility model, the hydraulic jack cylinder is placed on the top of the bearing crossbeam, and the hydraulic jack cylinder is vertically upward and abuts against the bottom of the lower fixed crossbeam.

[0011] The positive progress effect of the present application is that:

[0012] The utility model is suitable for pretest of bridge building machine, and is aimed at any bridge building machine, only needs to set up the parameter of hydraulic jack, can conveniently and accurately carry out pretest, obtains pretest deformation, simple to use, convenient operation, greatly improves the work efficiency of on-site detection personnel, shortens pretest time, reduces potential safety hazard. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the structural schematic diagram of the utility model.

[0014] Figure 1 It includes upper fixed rod group 1-1, lower fixed rod group 1-2, upper fixed crossbeam 2-1, lower fixed crossbeam 2-2, link beam 2-3, bearing crossbeam 3, bearing bottom beam 4, hydraulic jack 5 and the like. DETAILED DESCRIPTION

[0015] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict. The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0016] In order to make those skilled in the art better understand the utility model scheme, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the utility model.

[0017] It should be noted that the terms "first", "second" and the like in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, not necessarily to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the utility model described herein. In addition, "including" and "having" and similar terms mean that in addition to those listed in "including" and "having", other unlisted contents can also be "including" and "having". For example, a process, method, system, product or device that can include a series of steps or units does not necessarily limit to those steps or units that have been clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0018] Due to the angle of the drawing, some parts may not be drawn, but their positions and connection relationships can be understood according to the textual expression part.

[0019] As shown in Figure 1 The utility model discloses a prepress counterforce device suitable for cantilever bridge machine, including fixed rod group and bearing base, and the fixed structure is equipped with the fixed structure between bearing base both sides and is equipped with pressure output device.

[0020] The fixed structure is symmetrically arranged. The fixed structure comprises a fixed frame 2, which comprises an upper fixed cross beam 2-1 and a lower fixed cross beam 2-2, and the two are connected through a connecting beam 2-3.

[0021] The fixed rod group comprises an upper fixed rod group 1-1 and a lower fixed rod group 1-2, and the upper fixed rod group 1-1 and the lower fixed rod group 1-2 are both composed of connecting rods.

[0022] One end of the upper fixed rod group 1-1 and the lower fixed rod group 1-2 is precast in the 0# block on the pier.

[0023] During operation, the other end of the upper fixed rod group 1-1 and the lower fixed rod group 1-2 is connected with the upper fixed cross beam 2-1 and the lower fixed cross beam 2-2 respectively. In this embodiment, the connecting rod is a screw rod, and the upper fixed cross beam 2-1 and the lower fixed cross beam 2-2 are provided with through holes, and the connecting rod is fixed by screwing a nut after passing through the through holes.

[0024] The bearing base comprises bearing cross beams 3 arranged symmetrically, and the bearing cross beams 3 are connected through bearing bottom beams 4 at the bottom. In this embodiment, the number of the bearing bottom beams 4 is seven. In order to ensure the strength of the bearing bottom beams 4, the bearing bottom beams 4 are distributed with reinforcing plates.

[0025] The fixed end of the pressure output device is placed on the top of the bearing cross beam 3, and the moving end of the pressure output device is vertically upward and abuts against the bottom of the lower fixed cross beam 2-2. In this embodiment, the pressure output device is a hydraulic jack 5, and the cylinder body of the hydraulic jack 5 is placed on the top of the bearing cross beam 3, and the cylinder body of the hydraulic jack 5 is vertically upward and abuts against the bottom of the lower fixed cross beam 2-2.

[0026] The working process of the utility model is as follows:

[0027] In the process of bridge building, first, the bridge pier is built, and the 0# block is arranged on the bridge pier, after the bridge pier is built, the bridge building machine is symmetrically installed on both sides of the 0# block, and the block pouring of the bridge body is carried out. The pouring cavity is arranged on the bridge building machine, the pre-pressing counterforce device is arranged in the pouring cavity, and one end of the upper fixed rod group 1-1 and the lower fixed rod group 1-2 is connected with the upper fixed cross beam 2-1 and the lower fixed cross beam 2-2 respectively. Then, the hydraulic jack 5 is started, the hydraulic jack 5 reversely transmits the force to the pouring cavity, and the strength of the bridge building machine is tested. In the test, the pressure sensor is used to detect the pressure, and the instrument is used to measure the deformation amount of the bearing structure of the bridge building machine.

[0028] It can be understood that the above embodiments are only exemplary embodiments for illustrating the principles of the present application, and the present application is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present application, and these modifications and improvements are also regarded as the protection scope of the present application.

Claims

1. A pre-compression reaction force device for a cantilever bridge builder, characterized by, The fixed rod group and the bearing base are included, and the fixed structure is arranged on both sides of the bearing base, and the pressure output device is arranged between the fixed structure and the bearing base; the fixed structure is symmetrically arranged; the fixed structure includes a fixed frame (2), and the fixed frame (2) includes an upper fixed cross beam (2-1) and a lower fixed cross beam (2-2), and the two are connected through a connecting beam (2-3); the bearing base includes symmetrically arranged bearing cross beams (3), and the bearing cross beams (3) are connected through a bearing bottom beam (4) at the bottom; the fixed end of the pressure output device is placed on the top of the bearing cross beam (3), and the moving end of the pressure output device is vertically upward and abuts against the bottom of the lower fixed cross beam (2-2).

2. The pre-compression reaction device for a cantilever bridge machine according to claim 1, wherein The fixed rod group includes an upper fixed rod group (1-1) and a lower fixed rod group (1-2), and the upper fixed rod group (1-1) and the lower fixed rod group (1-2) are both composed of connecting rods.

3. The pre-compression reaction force device for a cantilever bridge machine according to claim 2, wherein One end of the upper fixed rod group (1-1) and the lower fixed rod group (1-2) is pre-cast in the 0# block on the pier.

4. The pre-compression reaction force device for a cantilever bridge machine according to claim 1, wherein The number of the bearing bottom beam (4) is 7.

5. The pre-compression reaction force device for a cantilever bridge machine of claim 1, wherein, The bearing bottom beam (4) is distributed with a reinforcing plate.

6. The pre-compression reaction force device for a cantilever bridge machine of claim 1, wherein, The pressure output device is a hydraulic jack (5).

7. The pre-compression reaction force device for a cantilever bridge machine according to claim 6, wherein The cylinder body of the hydraulic jack (5) is placed on the top of the bearing cross beam (3), and the cylinder body of the hydraulic jack (5) is vertically upward and abuts against the bottom of the lower fixed cross beam (2-2).

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