A prefabricated outrigger longitudinal movement reverse hanging device

Abstract

This utility model discloses a prefabricated outrigger longitudinal movement reverse-hanging device. The reverse-hanging device comprises two sets, each set being hung on the bottom of the main beam on both sides of the bridge erecting machine. Each set includes a mounting frame, a reverse-hanging wheel, and a guide wheel. Two mounting frames are arranged laterally opposite each other. The top of each mounting frame is connected to the reverse-hanging wheel and the guide wheel. The reverse-hanging wheel is located on the top surface of the bottom of the main beam, and the guide wheel is located on the side surface of the bottom of the main beam. The bottom of the mounting frame is connected to the transverse sliding base of the upper crossbeam of the outrigger of the bridge erecting machine. The advantage of this utility model is that the reaction force of the longitudinal movement jack enables the bridge erecting machine's outrigger to be pushed backward.

Description

Technical Field

[0001] This utility model relates to the technical field of bridge erecting machines, and in particular to a prefabricated outrigger longitudinal movement reverse hanging device. Background Technology

[0002] Currently, the outriggers used on bridge erecting machines are of an upper and lower combination type, with the upper part being the outrigger crossbeam and the lower part being the outrigger support structure. During the installation of a 100m steel-concrete composite beam, there is a problem of the outriggers moving backward. There are two common solutions: One method is to dismantle the outriggers and reinstall them backwards. The entire outrigger weighs 200 tons, and dismantling and installing it would take two days, which would be a huge waste of time, inefficient, and pose significant safety hazards for heavy lifting operations. Method two involves using an overhead crane to move the outriggers backward. Under this condition, the outriggers of a 100m bridge erecting machine weigh 200t each, the overhead crane weighs 120t each, totaling 320t, while the main beam weighs 1330t. All of this weight rests on outriggers 2 and 4. Outrigger 4 would have to bear a weight of 665t + 320t = 985t, posing a significant safety hazard. This requires a substantial increase in the strength of the bridge erecting machine's outriggers to achieve this.

[0003] Therefore, a prefabricated outrigger longitudinal movement reverse mounting device is needed to solve the above problems. Summary of the Invention

[0004] The purpose of this utility model is to provide a prefabricated outrigger longitudinal movement reverse hanging device to address the shortcomings of the prior art. This reverse hanging device consists of a mounting frame, reverse hanging wheels and guide wheels and is hung on the main beam of the bridge erecting machine. Through the reaction force of the longitudinal movement jack, the outrigger of the bridge erecting machine is pushed backward.

[0005] The objective of this utility model is achieved through the following technical solution: A prefabricated outrigger longitudinal movement reverse-hanging device is provided, comprising two sets of reverse-hanging devices, which are respectively hung on the bottom of the main beam on both sides of the bridge erecting machine. Each set of reverse-hanging devices includes a mounting frame, a reverse-hanging wheel, and a guide wheel. Two mounting frames are arranged laterally opposite each other. The top of the mounting frame is connected to the reverse-hanging wheel and the guide wheel. The reverse-hanging wheel is located on the top surface of the bottom of the main beam, and the guide wheel is located on the side of the bottom of the main beam. The bottom of the mounting frame is connected to the transverse sliding base of the upper crossbeam of the outrigger of the bridge erecting machine.

[0006] The mounting bracket includes a reverse wheel mounting bracket and a guide wheel mounting bracket. The reverse wheel mounting bracket is inverted L-shaped, and the guide wheel mounting bracket is a column. The vertical section of the reverse wheel mounting bracket is connected to the top of the guide wheel mounting bracket. The reverse wheel is mounted on the bottom side of the horizontal section end of the reverse wheel mounting bracket, and the guide wheel is mounted on the side of the top of the guide wheel mounting bracket.

[0007] A longitudinal jack is installed on the transverse base. The cylinder of the longitudinal jack is fixed on the transverse base, and the telescopic rod is connected to the reaction seat. The reaction seat is detachably connected to the bottom of the main beam.

[0008] The outriggers are outriggers No. 2 and No. 3 of the bridge erecting machine.

[0009] The advantages of this utility model are: (1) Convenient and quick. The original longitudinal movement of 60cm required 2 days for dismantling and reinstallation. With the reverse hanging method, it only takes half a day, saving a lot of time. Each span saves 1.5 days, and a total of 30 days can be saved, which is equivalent to about 150 manpower. (2) Safe and stable; reinstallation and dismantling are relatively dangerous, so this method is safer; (3) It can save a lot of steel and related costs for strengthening the No. 4 outrigger; (4) The structural strength requirements for the support point of the No. 4 outrigger (with steel beam already installed) have been reduced. Attached Figure Description

[0010] Figure 1 This is a horizontal elevation view of the single-unit reverse hanging device of this utility model; Figure 2 for Figure 1 Enlarged view of A in the middle; Figure 3 This is a longitudinal elevation view of the single-unit reverse hanging device of this utility model; Figure 4 This is a plan view of the single-unit reverse hanging device of this utility model; Figure 5 This is a schematic diagram of the installation of the support leg of this utility model; Figure 6 for Figure 5 Enlarged view of B in the middle; like Figures 1-6 As shown in the figure, the markings represent: Mounting bracket 10, reverse wheel mounting bracket 101, guide wheel mounting bracket 102, reverse wheel 20, guide wheel 30, transverse base 40, main beam 50, longitudinal jack 60, reaction seat 70. Detailed Implementation

[0011] The features and other related features of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments, so as to facilitate the understanding of those skilled in the art: Example: Figures 1-4As shown, this embodiment relates to a prefabricated outrigger longitudinal movement reverse-hanging device. The reverse-hanging device comprises two sets, each set being hung on the bottom of the main beam 50 of the bridge erecting machine on both transverse sides. Each set includes a mounting frame 10, a reverse-hanging wheel 20, and a guide wheel 30. Two mounting frames 10 are arranged transversely. The top of the mounting frame 10 is connected to the reverse-hanging wheel 20 and the guide wheel 30. The reverse-hanging wheel 20 is located on the top surface of the bottom of the main beam 50, enabling the hanging and movement of the reverse-hanging device. The guide wheel 30 is located on the side of the bottom of the main beam 50, used for guiding the reverse-hanging device. The bottom of the mounting frame 10 is connected to the upper part of the outrigger of the bridge erecting machine. The transverse base 40 of the crossbeam is connected. The mounting frame 10 includes a reverse wheel mounting frame 101 and a guide wheel mounting frame 102. The reverse wheel mounting frame 101 is inverted L-shaped, and the guide wheel mounting frame 102 is a column. The vertical section of the reverse wheel mounting frame 101 is connected to the top of the guide wheel mounting frame 102. The reverse wheel 20 is installed on the bottom side of the horizontal section end of the reverse wheel mounting frame 101. The reverse wheel 20 is vertically arranged, and multiple reverse wheels 20 can be arranged along the longitudinal direction. The guide wheel 30 is installed on the side of the top of the guide wheel mounting frame 102. The guide wheel 30 is horizontally arranged, and multiple guide wheels 30 can be arranged along the longitudinal direction.

[0012] like Figures 5-6 As shown, the outriggers are outriggers No. 2 and No. 3 of the bridge erecting machine. Each outrigger includes a detachably connected lower outrigger and an upper crossbeam. The bottom of the lower outrigger is detachably connected to the cap beam. A guide rail is provided on the upper crossbeam. Two transverse bases 40 are arranged laterally, and the transverse bases 40 move laterally along the guide rails. A longitudinal jack 60 is installed on the transverse base 40. The cylinder of the longitudinal jack 60 is fixed to the transverse base 40, and its telescopic rod is connected to a reaction seat 70. The reaction seat 70 is detachably connected to the bottom of the main beam 50. In this embodiment, when the outrigger is disconnected from the cap beam, the telescopic rod of the longitudinal jack 60 is extended. Under the action of the reaction seat 70, the cylinder of the longitudinal jack 60 drives the anti-hanging device and the outrigger to move backward.

[0013] The beneficial technical effects of this embodiment are as follows: (1) Convenient and quick. The original longitudinal movement of 60cm required 2 days for dismantling and reinstallation. With the reverse hanging method, it only takes half a day, saving a lot of time. Each span saves 1.5 days, and a total of 30 days can be saved, which is equivalent to about 150 manpower. (2) Safe and stable; reinstallation and dismantling are relatively dangerous, so this method is safer; (3) It can save a lot of steel and related costs for strengthening the No. 4 outrigger; (4) The structural strength requirements for the support point of the No. 4 outrigger (with steel beam already installed) have been reduced.

Claims

1. A fabricated leg longitudinal movement anti-hang device, characterized in that The reverse-hanging device is provided in two sets, and the two sets of reverse-hanging devices are respectively hung on the bottom of the main beam on both sides of the bridge erecting machine. Each set of reverse-hanging devices includes a mounting frame, a reverse-hanging wheel and a guide wheel. There are two mounting frames arranged in the lateral direction. The top of the mounting frame is connected to the reverse-hanging wheel and the guide wheel. The reverse-hanging wheel is located on the top surface of the bottom of the main beam, and the guide wheel is located on the side of the bottom of the main beam. The bottom of the mounting frame is connected to the transverse base of the upper crossbeam of the support leg of the bridge erecting machine.

2. The assembly type longitudinal moving anti-hanging device for the outrigger as claimed in claim 1, characterized in that The mounting bracket includes a reverse wheel mounting bracket and a guide wheel mounting bracket. The reverse wheel mounting bracket is inverted L-shaped, and the guide wheel mounting bracket is a column. The vertical section of the reverse wheel mounting bracket is connected to the top of the guide wheel mounting bracket. The reverse wheel is mounted on the bottom side of the horizontal section end of the reverse wheel mounting bracket, and the guide wheel is mounted on the side of the top of the guide wheel mounting bracket.

3. The fabricated leg lengthening and reverse hinging device of claim 1, wherein A longitudinal jack is installed on the transverse base. The cylinder of the longitudinal jack is fixed on the transverse base, and the telescopic rod is connected to the reaction seat. The reaction seat is detachably connected to the bottom of the main beam.

4. The fabricated leg lengthening and reverse hinging device of claim 1, wherein The outriggers are outriggers No. 2 and No. 3 of the bridge erecting machine.

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