Front supporting structure of bridge girder erection machine

Abstract

The utility model relates to the technical field of bridge girder erection machines, and discloses a front support structure of a bridge girder erection machine, which comprises a rear drive device, a bridge frame arranged on the upper surface of the rear drive device, a rear crown block arranged on the upper surface of the bridge frame, a middle support arranged on the lower surface of the bridge frame, a front crown block arranged on the upper surface of the bridge frame, and a rear support arranged on the lower surface of the bridge frame. A front supporting mechanism is arranged on the lower surface of the bridge frame, a front auxiliary supporting leg is arranged on the outer wall of the front supporting mechanism, the upper surface of the front auxiliary supporting leg is attached to the lower surface of the bridge frame, the outer wall of the front crown block is arranged at the midpoint of the bridge frame, and a supporting assembly is arranged on the lower surface of the rear driver. According to the bridge erecting machine, the front supporting mechanism and the front auxiliary supporting leg are matched, the effect of supporting the front end of the bridge erecting machine is achieved, through the design that the height of the front supporting mechanism and the height of the front auxiliary supporting leg are adjustable, the effect that the applicability of the bridge erecting machine is higher is achieved, and the safety of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge girder erection machine technical field especially relates to a front support structure of bridge girder erection machine. BACKGROUND

[0002] As the indispensable equipment in bridge construction, the bridge girder erection machine undertakes the transportation and installation task of bridge components. With the rapid development of urbanization construction in China, the number and scale of infrastructure projects such as rail transit and expressway are increasing, and the application of bridge girder erection machine in bridge construction is also increasingly frequent. However, the existing bridge girder erection machine design still has some problems to be solved in the front support structure, such as insufficient stability, insufficient rigidity, and complexity of the installation and disassembly process. These problems not only threaten the safety of the bridge girder erection machine in work, but also reduce the construction efficiency and affect the progress of the entire bridge construction. Therefore, in order to improve the performance of the bridge girder erection machine and ensure the safety and efficiency of the construction process, it is urgent to improve and innovate the front support structure.

[0003] After searching, a front support structure of bridge girder erection machine is disclosed in the publication number CN218027227U, which includes a support base and a support beam. The inner bottom wall of the support base is installed with a servo motor, the output end of the servo motor is installed with a threaded rod, and the outer surface of the threaded rod is drivingly connected with a threaded lifting plate. The front support structure of the bridge girder erection machine has the effects of convenient lifting adjustment and strong stability of support, through the setting of the servo motor, the threaded rod, the threaded lifting plate, the convex slide block, the electric hydraulic push rod, the clamping block, the positioning slide block and the support leg. The support leg moves up and down to adjust the appropriate height range through the threaded lifting plate. The clamping block and the clamping groove are aligned in the appropriate height range, and the clamping block enters the clamping groove to play the role of supporting and bearing. The purpose of improving practicality is achieved. Although the front support structure of the bridge girder erection machine is lifted and adjusted through the cooperation of the servo motor and the threaded lifting plate in the application, the problem that the safety and stability of the device are low due to the insufficient rigidity of the front support structure in actual use is not considered. SUMMARY

[0004] In order to make up for the above shortcomings, the utility model provides a front support structure of bridge girder erection machine, which aims to improve the problem that the safety and stability of the device are low due to the insufficient rigidity of the front support structure in actual use in the prior art.

[0005] To achieve the above object, the utility model provides the following technical scheme: A front support structure of a bridge girder erection machine, including rear driver, the upper surface of rear driver is provided with bridge frame, the upper surface of bridge frame is provided with rear headstock, the lower surface of bridge frame is provided with middle support, the upper surface of bridge frame is provided with front headstock, the lower surface of bridge frame is provided with front support mechanism, the outer wall of front support mechanism is provided with front auxiliary support leg, the upper surface of front auxiliary support leg is pasted in the lower surface of bridge frame, the outer wall of front headstock is arranged at the midpoint of bridge frame, the lower surface of rear driver is provided with support assembly.

[0006] Further, the support assembly comprises a bridge and a beam plate, the upper surface of the beam plate is fixedly connected to the lower surface of the rear driver, and the lower surface of the beam plate is fixedly connected to the upper surface of the bridge.

[0007] Further, a plurality of bridges are equidistantly arranged on the lower surface of the beam plate.

[0008] Further, the inside of the bridge frame is slidably connected with a beam transport vehicle, and the lower surface of the beam transport vehicle is slidably connected to the upper surface of the beam plate.

[0009] Further, the inside of the beam plate is provided with an anti-seismic stopper, and the lower surface of the anti-seismic stopper is fixedly connected to the upper surface of the bridge.

[0010] Further, the inside of the rear headstock and the inside of the front headstock are both provided with an electric hoist.

[0011] Further, the height of the front support mechanism and the front auxiliary support leg is adjustable.

[0012] Further, the front support mechanism and the front auxiliary support leg are both made of carbon fiber reinforced composite material.

[0013] The utility model has the advantages of:

[0014] 1、In the utility model, through the cooperation of front support mechanism and front auxiliary support leg, the effect that the front end of bridge girder erection machine is supported is achieved, through the height-adjustable design of front support mechanism and front auxiliary support leg, the effect that the applicability of bridge girder erection machine is stronger is achieved, through the adoption of high-strength carbon fiber composite material to make front support mechanism and front auxiliary support leg, the effect that the strength and stability of bridge girder erection machine are improved is achieved, and the safety of the device is improved.

[0015] 2. The utility model discloses, through the cooperation of the beam transport vehicle and the bridge frame, thereby reach the effect that the beam plate is conveniently transported, through the cooperation of the rear trolley and the front trolley, thereby reach the effect that the beam plate is conveniently lifted and placed, through the design of the middle support, thereby reach the effect that the middle part of the bridge girder erection machine is provided with support, prevent the bridge girder erection machine from producing deformation, through the set shockproof stopper, thereby reach the effect that the beam plate shock resistance is improved, the convenience and practicality of the device are improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure diagram of the front support structure of the bridge girder erection machine that the utility model proposes;

[0017] Figure 2 It is a rear driver part structure schematic view of the front support structure of the bridge girder erection machine that the utility model proposes;

[0018] Figure 3 It is a middle support part structure schematic view of the front support structure of the bridge girder erection machine that the utility model proposes;

[0019] Figure 4 It is a rear trolley part structure schematic view of the front support structure of the bridge girder erection machine that the utility model proposes;

[0020] Figure 5 It is a front auxiliary support leg part structure schematic view of the front support structure of the bridge girder erection machine that the utility model proposes.

[0021] Legend:

[0022] 1, rear driver, 2, rear trolley, 3, middle support, 4, front trolley, 5, bridge frame, 6, front support mechanism, 7, front auxiliary support leg, 8, bridge, 9, beam plate, 10, beam transport vehicle, 11, shockproof stopper. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] Reference Figure 1 , Figure 2 and Figure 3The utility model provides an embodiment: a front support structure of bridge erecting machine, including rear driver 1, the upper surface of rear driver 1 is provided with bridge 5, the upper surface of bridge 5 is provided with rear headstock 2, the lower surface of bridge 5 is provided with middle support 3, the upper surface of bridge 5 is provided with front headstock 4, the lower surface of bridge 5 is provided with front support mechanism 6, the outer wall of front support mechanism 6 is provided with front vice supporting leg 7, the upper surface of front vice supporting leg 7 is pasted in the lower surface of bridge 5, the outer wall of front headstock 4 is arranged at the midpoint of bridge 5, the lower surface of rear driver 1 is provided with support assembly.

[0025] Specifically, during the erection of bridge 8, first, bridge 8 is accurately driven into the preset bridge erection position, after this step is completed, rear driver 1 is started, which is a key step, and the function of rear driver 1 is crucial, which drives the overall movement of bridge erecting machine, so that front support mechanism 6 and front vice supporting leg 7 can smoothly slide along bridge 5 to the position of bridge 8, next, the height of front support mechanism 6 and front vice supporting leg 7 is accurately adjusted, so that they can be stably supported on bridge 8, the purpose of this series of operations is to provide stable front support for bridge erecting machine and ensure the smooth progress of the bridge erection process, in addition, it is worth mentioning that front support mechanism 6 and front vice supporting leg 7 are made of carbon fiber composite material, the selection of this material has a thoughtful consideration, which not only improves the rigidity of front support mechanism 6 and front vice supporting leg 7, so that they can better withstand the weight of bridge 8, but also reduces the self-weight of front support mechanism 6 and front vice supporting leg 7, this design greatly improves the safety of the device and avoids potential dangers caused by excessive weight, at the same time, due to the high strength and low weight of carbon fiber composite material, the energy consumption of rear driver 1 is also effectively reduced, all of this is to ensure the smooth progress of the bridge erection process, improve work efficiency and protect the safety of workers.

[0026] Referring to Figure 2 and Figure 3 , the support assembly includes bridge 8 and beam plate 9, the upper surface of beam plate 9 is fixedly connected to the lower surface of rear driver 1, and the lower surface of beam plate 9 is fixedly connected to the upper surface of bridge 8; a plurality of bridge 8 are equidistantly arranged on the lower surface of beam plate 9; beam carriage 10 is slidably connected in the inside of bridge 5, and the lower surface of beam carriage 10 is slidably connected to the upper surface of beam plate 9; anti-seismic block 11 is arranged in the inside of beam plate 9, and the lower surface of anti-seismic block 11 is fixedly connected to the upper surface of bridge 8.

[0027] Specifically, the beam plates 9 are important components of the bridge 8 structure, and they need to be accurately and quickly installed above the bridge 8, for which we use the beam transport vehicle 10 to complete this task, the beam transport vehicle 10 has excellent carrying capacity and movement performance, and can safely and stably transport the beam plates 9 from the storage location to the erection location, and during the erection process, the rear trolley 2 and the front trolley 4 play a key role, they are respectively located on both sides of the beam plate 9, and the CD13-9D electric hoist arranged on the vehicle is used to lift the beam plate 9, the CD13-9D electric hoist is a light and efficient lifting device, which can accurately control the lifting and moving speed of the beam plate 9, and ensure the safety and stability of the beam plate 9 during transportation.

[0028] With reference to Figure 4 and Figure 5 , the inside of the rear trolley 2 and the inside of the front trolley 4 are both provided with electric hoists; the height of the front supporting mechanism 6 and the front auxiliary supporting leg 7 is adjustable; the front supporting mechanism 6 and the front auxiliary supporting leg 7 are both made of carbon fiber reinforced composite material.

[0029] Specifically, the high strength and rigidity of the carbon fiber composite material make the front supporting mechanism 6 and the front auxiliary supporting leg 7 have better anti-deformation ability when bearing external load, thereby ensuring the stability of the entire device under complex working conditions, which is of great significance to the field of high-altitude operation, heavy machinery and the like, and helps to prevent accidents caused by equipment instability, secondly, the carbon fiber composite material has the characteristics of low density, so that the self-weight of the front supporting mechanism 6 and the front auxiliary supporting leg 7 is reduced, which is conducive to reducing the energy consumption of the equipment, prolonging the service life of the rear driver 1, and to a certain extent, reducing the operating cost, at the same time, the lightweight design also helps to improve the mobility of the equipment, so that it can perform better performance in various environmental conditions.

[0030] Working principle: when the front supporting structure of a bridge erecting machine is needed, first, the bridge 8 is driven into the bridge erecting position, at this time, the rear driver 1 is started, and the bridge erecting machine is moved by the rear driver 1, so that the front supporting mechanism 6 and the front auxiliary supporting leg 7 slide along the bridge 5 to the bridge 8, and the height of the front supporting mechanism 6 and the front auxiliary supporting leg 7 is adjusted, and then the bridge 8 supports the front supporting mechanism 6 and the front auxiliary supporting leg 7, thereby achieving the effect of providing front support for the bridge erecting machine, at the same time, the front supporting mechanism 6 and the front auxiliary supporting leg 7 are made of carbon fiber composite material, which improves the rigidity of the front supporting mechanism 6 and the front auxiliary supporting leg 7 and reduces the self-weight of the front supporting mechanism 6 and the front auxiliary supporting leg 7, thereby achieving the effect of improving the safety of the device while reducing the energy consumption of the rear driver 1, at this time, the beam plate 9 is moved to the lower side of the rear trolley 2 and the front trolley 4 by the beam transport vehicle 10, and the beam plate 9 is lifted by the electric hoist arranged on the rear trolley 2 and the front trolley 4 and then moved to the laying position, so that the beam plate 9 is attached to the upper side of the bridge 8, thereby achieving the effect of improving the work efficiency, and the above operation can be repeated to complete the bridge erection project.

[0031] It should be pointed out finally that: the above only for the preferred embodiments of the utility model have, and do not for limiting the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A front support structure for a bridge erecting machine, comprising a rear drive unit (1), characterized in that: The upper surface of the rear drive unit (1) is provided with a bridge frame (5), the upper surface of the bridge frame (5) is provided with a rear overhead crane (2), the lower surface of the bridge frame (5) is provided with a middle support (3), the upper surface of the bridge frame (5) is provided with a front overhead crane (4), the lower surface of the bridge frame (5) is provided with a front support mechanism (6), the outer wall of the front support mechanism (6) is provided with a front auxiliary support leg (7), the upper surface of the front auxiliary support leg (7) is attached to the lower surface of the bridge frame (5), the outer wall of the front overhead crane (4) is located at the midpoint of the bridge frame (5), and the lower surface of the rear drive unit (1) is provided with a support assembly.

2. The front support structure of a bridge erecting machine according to claim 1, characterized in that: The support assembly includes a bridge (8) and a beam (9), the upper surface of which is fixedly connected to the lower surface of the rear drive unit (1), and the lower surface of which is fixedly connected to the upper surface of the bridge (8).

3. The front support structure of a bridge erecting machine according to claim 2, characterized in that: Multiple bridges (8) are equidistantly arranged on the lower surface of the beam (9).

4. The front support structure of a bridge erecting machine according to claim 2, characterized in that: The bridge frame (5) is internally slidably connected to a beam transport vehicle (10), and the lower surface of the beam transport vehicle (10) is slidably connected to the upper surface of the beam plate (9).

5. The front support structure of a bridge erecting machine according to claim 4, characterized in that: The beam (9) is provided with an anti-seismic block (11) inside, and the lower surface of the anti-seismic block (11) is fixedly connected to the upper surface of the bridge (8).

6. The front support structure of a bridge erecting machine according to claim 1, characterized in that: Electric hoists are installed inside both the rear hoist (2) and the front hoist (4).

7. The front support structure of a bridge erecting machine according to claim 1, characterized in that: The heights of the front support mechanism (6) and the front auxiliary support leg (7) are both adjustable.

8. The front support structure of a bridge erecting machine according to claim 1, characterized in that: Both the front support mechanism (6) and the front auxiliary support leg (7) are made of carbon fiber reinforced composite material.

Images