Box girder turning device

Abstract

A box girder turning device comprises an annular track and a truss, and the two ends of the truss are fixedly connected with a moving trolley arranged on the annular track. The utility model is used for solving the problem that the construction efficiency is influenced by the U-turn of the box girder.

Description

Technical Field

[0001] The utility model relates to a box beam turning device. Background Art

[0002] The side box girders currently manufactured need to be equipped with railing embedded steel bars on one side of the box girders. Since the side box girders are manufactured using a set of molds, the railing embedded steel bars on each box girder are all on the same side (such as Figure 6 The embedded steel bars of the railings manufactured in the process are all on the right side), and the bridge requires railings on both sides. Therefore, half of the side box girders need to be turned around to replace the embedded steel bars of the railings originally on the right side to the left side. The current way of turning the box girders is to use a crane. The crane is a high-frequency equipment used on the construction site, and the box girder U-turn needs to occupy the crane for a long time, which greatly affects the construction efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a box beam turning device for solving the problem that the box beam turning affects the construction efficiency.

[0004] In order to solve the above problems, the technical solution of the utility model is:

[0005] A box beam turning device comprises a ring track and a truss, wherein two ends of the truss are fixedly connected to a moving trolley arranged on the ring track.

[0006] A limit tube is fixedly arranged on the center ground of the annular track, a sleeve is arranged outside the limit tube, and the sleeve is fixedly connected to the truss.

[0007] A partition is arranged in the limit tube, a conductive slip ring is arranged in the limit tube, a collector ring in the conductive slip ring is installed on the partition, a brush in the conductive slip ring is connected to the truss, and a brush terminal is electrically connected to a reduction motor in the mobile trolley.

[0008] A plurality of sleepers are arranged on the mobile trolley, and the box beam is placed on the sleepers.

[0009] The beneficial effects of the utility model are as follows: after the box girder is placed on the mobile trolley by driving, the two mobile trolleys drive the box girder to rotate 180 degrees to turn the box girder around, which does not occupy too much driving time and improves the construction efficiency of the bridge. The device has a simple structure and is safe and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The utility model is further described below in conjunction with the accompanying drawings:

[0011] Figure 1 This is a schematic diagram of the top view of the structure of the utility model.

[0012] Figure 2This is a schematic diagram of the main structure of the utility model.

[0013] Figure 3 This is a schematic diagram of the structure of the mobile trolley of the utility model.

[0014] Figure 4 This is a left view of the mobile trolley of the utility model.

[0015] Figure 5 This is a schematic diagram of the structure of the limit tube of the utility model.

[0016] Figure 6 The utility model is a structural schematic diagram of a bridge.

[0017] In the figure: a circular track 1, a moving trolley 2, a partition 3, a truss 4, a limit tube 5, a box beam 6, a sleeper 7, a sleeve 8, a collector ring 9, a brush 10, an outer wheel 21, a car body 22, an inner wheel 23, and a reduction motor 24. DETAILED DESCRIPTION

[0018] like Figures 1 to 5 As shown, a box girder U-turn device comprises a circular track 1 and a truss 4, and both ends of the truss 4 are fixedly connected to a moving trolley 2 arranged on the circular track 1. The circular track 1 is composed of two inner and outer guide rails, and the inner and outer guide rails are fixed on the ground by expansion screws. The moving trolley 2 comprises a body 22, and an outer wheel 21 and an inner wheel 23 are installed on the body 22, and the outer wheel 21 is drivingly connected to a reduction motor 24 installed on the body 22.

[0019] When in use, the crane places the box girder 6 on two mobile trolleys 2, and the two mobile trolleys 2 drive the box girder 6 to rotate 180 degrees to turn the box girder 6 around. After the turn is completed, the crane stacks the box girder 6 to the box girder 6 stacking area, which does not occupy too much driving time and improves the construction efficiency of the bridge.

[0020] A limit tube 5 is fixedly arranged on the center ground of the circular track 1, and a sleeve 8 is arranged on the outer surface of the limit tube 5, and the sleeve 8 is fixedly connected to the truss 4. The limit tube 5 is used to limit the travel path of the two mobile trolleys 2 to prevent the trolleys from running off the track, thereby improving the safety of the device when in use.

[0021] A partition 3 is provided in the limit tube 5, a conductive slip ring is provided in the limit tube 5, a collector ring 9 in the conductive slip ring is installed on the partition 3, a brush 10 in the conductive slip ring is connected to the truss 4, a terminal of the brush 10 is electrically connected to the reduction motor 24 in the mobile trolley 2, and a terminal of the conductive slip ring is connected to the power distribution cabinet. The conductive slip ring is used to prevent the cables supplying power to the mobile trolley 2 from twisting and entangled.

[0022] A plurality of sleepers 7 are provided on the mobile trolley 2, and the box beam 6 is placed on the sleepers 7. The sleepers 7 can play a role of shock absorption and anti-skid for the box beam 6.

[0023] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A box girder turning device, characterized in that: The invention comprises an annular track (1) and a truss (4), wherein both ends of the truss (4) are fixedly connected to a moving trolley (2) arranged on the annular track (1); a limit tube (5) is fixedly arranged on the ground at the center of the annular track (1), a sleeve (8) is arranged on the outer shell of the limit tube (5), and the sleeve (8) is fixedly connected to the truss (4); a partition (3) is arranged in the limit tube (5), a conductive slip ring is arranged in the limit tube (5), a collector ring (9) in the conductive slip ring is installed on the partition (3), a brush (10) in the conductive slip ring is connected to the truss (4), and a terminal of the brush (10) is electrically connected to a reduction motor (24) in the moving trolley (2).

2. A box girder U-turn device according to claim 1, characterized in that: A plurality of sleepers (7) are arranged on the movable trolley (2), and the box beam (6) is placed on the sleepers (7).

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