CN221218529U

CN221218529U - Walking wheel reversing device and bridge girder erection machine rear supporting leg

Info

Publication number: CN221218529U
Application number: CN202323193955.7U
Authority: CN
Inventors: 黄颢; 吴连杰; 孔德彪
Original assignee: Sinohydro Bureau 8 Co Ltd
Current assignee: Sinohydro Bureau 8 Co Ltd
Priority date: 2023-11-24
Filing date: 2023-11-24
Publication date: 2024-06-25
Anticipated expiration: 2033-11-24

Abstract

The utility model provides a travelling wheel reversing device and a rear supporting leg of a bridge girder erection machine. The travelling wheel reversing device comprises a fixed flange and a driven sleeve member which is rotationally connected with the fixed flange through a Z shaft, wherein the lower end of the driven sleeve member is connected with a power box through a rotating shaft, the rotating shaft extends in the Y direction, a travelling wheel is mounted at the bottom of the power box, a driving mechanism for driving the travelling wheel to walk is mounted on the power box, and the rotating axis of the travelling wheel is parallel to the Y shaft. According to the utility model, the passive external member is rotationally connected through the design, and the travelling wheels are arranged on the passive external member through the power box, so that the travelling wheels can be turned along with the passive external member without being disassembled, the increased working time for disassembling the travelling wheels is avoided, the workload is reduced, and the girder erecting efficiency is improved.

Description

Walking wheel reversing device and bridge girder erection machine rear supporting leg

Technical Field

The utility model relates to the technical field of bridge engineering construction, in particular to a travelling wheel reversing device and a rear supporting leg of a bridge girder erection machine.

Background

In bridge engineering construction, a bridge girder erection machine is generally adopted to erect a bridge, the bridge girder erection machine comprises a track and rear supporting legs, and travelling wheels sliding on the track are arranged on the rear supporting legs. Specifically, a plurality of piers are constructed along the length extending direction of the bridge, and then bridge erecting machines are installed on every two piers, so that the rear supporting legs move at the transverse positions of the bridge through tracks, and steel beams placed at the upper ends of the rear supporting legs are placed at proper positions.

Because bridge pier span is great, when the back landing leg can lateral movement is required, the back landing leg can also need to longitudinally move to the next bridge pier position. The existing practice is to disassemble the travelling wheels of the rear supporting leg, and reinstall the travelling wheels after changing the direction. The method is complex in operation, increases labor cost, increases the working time of disassembly and assembly, and reduces the girder erecting efficiency of the bridge girder erecting machine.

Disclosure of utility model

The utility model aims to provide a traveling wheel reversing device and a rear supporting leg of a bridge girder erection machine, reversing can be realized without disassembling traveling wheels, the increased working time of disassembly and assembly is avoided, and girder erection efficiency is improved.

The technical scheme of the utility model is as follows: the utility model provides a walking wheel reversing device, includes mounting flange and through the Z axle with the driven external member of mounting flange rotation connection, the lower extreme of driven external member is connected with the headstock through the pivot, the pivot extends in the Y direction, the walking wheel is installed to the bottom of headstock, install on the headstock and be used for the drive the actuating mechanism of walking wheel walking, the axis of rotation and the Y axle parallel of walking wheel.

In the scheme, the passive external member is connected through the design rotation, and the travelling wheel is installed on the passive external member through the power box, so that the travelling wheel can be turned along with the passive external member, the travelling wheel is not required to be disassembled, the working time for disassembling and assembling the travelling wheel is avoided, the working load is reduced, and the girder erecting efficiency is improved.

Preferably, the middle of the fixing flange is provided with a through mounting hole and a through counter bore from bottom to top in sequence in the Z direction, the top of the passive sleeve is provided with a connecting shaft and a shaft disc from bottom to top in sequence in the Z direction, the connecting shaft is assembled in the mounting hole, the shaft disc is arranged in the counter bore, and the lower surface of the shaft disc is in contact with the inner surface of the counter bore.

Preferably, the lower extreme of passive external member is equipped with first otic placode, be equipped with first shaft hole on the first otic placode, the top of headstock is equipped with the second otic placode, the second otic placode is equipped with the second shaft hole, first otic placode and second otic placode adaptation and make first shaft hole and second shaft hole align, the pivot cartridge in first shaft hole and second shaft hole.

Preferably, two first ear plates and two second ear plates are arranged at intervals in the Y direction, and the two second ear plates are inserted between the two first ear plates.

Preferably, the fixed flange, the driven sleeve, the rotating shaft, the power box and the travelling wheels are all made of steel.

The utility model also provides a rear supporting leg of the bridge girder erection machine, which comprises a cross beam and the travelling wheel reversing device, wherein the fixed flange of the travelling wheel reversing device is arranged at the end part of the cross beam, and the passive sleeve rotates relative to the fixed flange to enable the power box to be parallel or perpendicular to the end part of the cross beam.

Preferably, the cross beam comprises a middle beam, connecting beams connected to two ends of the middle beam, and end beams connected with the connecting beams, wherein the end beams extend outwards above the middle beam, and the lower surface of the end beams is used for installing the fixing flange.

Preferably, the lower surface of the travelling wheel extends out of the lower surface of the middle beam.

Preferably, the connecting beams at the two ends are inclined between the middle beam and the end beam in an external splay shape.

Compared with the related art, the utility model has the beneficial effects that:

1. The travelling wheel reversing device is provided with the fixed flange and the passive suite rotating with the fixed flange, so that the travelling wheel reversing device is convenient for reversing, is simple to operate, reduces the workload, saves the labor cost, reduces the construction time, is beneficial to continuous operation of the bridge girder erection machine, and ensures the construction progress of bridge erection;

2. The road wheel reversing device has the advantages that the road wheels have a reversing function through the design of the passive suite, not only can transverse movement be met, but also longitudinal movement of overspan can be met, and the adaptability is higher.

Drawings

Fig. 1 is a schematic structural view of a traveling wheel reversing device provided by the utility model;

FIG. 2 is a schematic view of the mounting flange of FIG. 1;

FIG. 3 is a schematic structural diagram of the passive kit of FIG. 1;

FIG. 4 is a schematic diagram of a power box of a rear supporting leg of a bridge girder erection machine in parallel with an end girder;

fig. 5 is a schematic diagram of the rear leg of the bridge girder erection machine provided by the utility model when the power box of the rear leg is vertical to the end beam.

In the accompanying drawings: 1. a fixed flange; 11. a mounting hole; 12. countersink; 2. a passive kit; 21. a connecting shaft; 22. a shaft disc; 23. a first ear plate; 24. a first shaft hole; 3. a rotating shaft; 4. a power box; 41. a second ear plate; 5. a walking wheel; 6. a driving mechanism; 7. a cross beam; 71. a middle beam; 72. a connecting beam; 73. an end beam.

Detailed Description

The utility model will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. For convenience of description, the words "upper", "lower", "left" and "right" are used hereinafter to denote only the directions corresponding to the upper, lower, left, and right directions of the drawings, and do not limit the structure.

As shown in fig. 1, the traveling wheel reversing device provided in this embodiment includes a fixed flange 1, a passive sleeve 2, a rotating shaft 3, a power box 4, traveling wheels 5 and a driving mechanism 6.

As shown in fig. 2, the middle of the fixing flange 1 is provided with a through mounting hole 11 and a counter bore 12 from bottom to top in sequence in the Z direction. As shown in fig. 3, the top of the passive component 2 is provided with a connecting shaft 21 and a shaft disc 22 from bottom to top in sequence in the Z direction. As shown in fig. 1, the connecting shaft 21 is fitted into the mounting hole 11, and the shaft disk 22 is placed in the counter bore 12. The passive sleeve 2 is contacted with the inner surface of the counter bore 12 through the lower surface of the shaft disc 22, so that the hanging connection is realized. The passive sleeve 2 is rotated by the structure that the connecting shaft 21 is assembled in the mounting hole 11 in a clearance way.

As shown in fig. 3, the lower end of the passive component 2 is provided with first ear plates 23, and two first ear plates 23 are arranged at intervals in the Y direction. The first ear plates 23 are provided with first shaft holes 24. As shown in fig. 1, the top of the power box 4 is provided with second ear plates 41, and two second ear plates 41 are spaced apart in the Y direction. The two second ear plates 41 are provided with second shaft holes (not shown). The first ear plate 23 is fitted with the second ear plate 41 and aligns the first shaft hole 24 with the second shaft hole, and the rotating shaft 3 is inserted into the first shaft hole 24 and the second shaft hole.

As shown in fig. 1, the lower end of the power box 4 is rotatably provided with a travelling wheel 5, and the travelling wheels 5 are arranged at two ends of the length direction of the power box 4. The end side of the power box 4 is provided with a driving mechanism 6. The driving mechanism 6 is a motor, a gear set is arranged in the power box 4, a power shaft of the driving mechanism 6 is connected with the input end of the gear set, and the output end of the gear set is respectively connected with the travelling wheels 5 to drive the travelling wheels 5 to rotate along the Y axis.

The fixed flange plate 1, the driven sleeve member 2, the rotating shaft 3, the power box 4 and the travelling wheels 5 are made of steel.

As shown in fig. 4, the rear supporting leg of the bridge girder erection machine comprises a cross beam 7 and the travelling wheel reversing device. The cross member 7 includes a middle beam 71, connection beams 72 connected to both ends of the middle beam 71, and end beams 73 connected to the connection beams 72. The connecting beams 72 at both ends are inclined in an outer figure of eight between the intermediate beam 71 and the end beam 73. The end beam 73 extends outwardly above the intermediate beam 71, and the lower surface of the end beam 73 is used for mounting the fixing flange 1. The lower surface of the travelling wheel 5 extends out of the lower surface of the intermediate beam 71.

The fixed flange 1 of the travelling wheel reversing device is mounted at the lower end of the end beam 73 through bolts, and the passive sleeve 2 rotates relative to the fixed flange 1, so that the power box 4 is parallel (vertically overlapped) or perpendicular to the end part of the cross beam 7.

As shown in fig. 4, when the power box 4 is parallel to the end of the cross beam 7, the rear leg of the bridge girder erection machine moves laterally on the bridge pier. When the bridge girder erection machine needs to walk over, the rear supporting leg is lifted, the driven sleeve member 2 is manually rotated, the power box 4 is vertical to the cross beam 7 (as shown in fig. 5), and the walking wheels 5 are reversed along with the power box, so that the rear supporting leg of the bridge girder erection machine can longitudinally move to the next bridge pier.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. The utility model provides a walking wheel reversing device, its characterized in that, include mounting flange (1) and through Z axle with driven external member (2) that mounting flange (1) rotate and be connected, the lower extreme of driven external member (2) is connected with headstock (4) through pivot (3), pivot (3) extend in the Y direction, walking wheel (5) are installed to the bottom of headstock (4), install on headstock (4) and be used for the drive walking wheel (5) the actuating mechanism (6) of walking, the axis of rotation and the Y axle parallel of walking wheel (5).

2. The traveling wheel reversing device according to claim 1, wherein a through mounting hole (11) and a through counter bore (12) are sequentially formed in the middle of the fixed flange (1) from bottom to top in the Z direction, a connecting shaft (21) and a shaft disc (22) are sequentially formed in the top of the passive sleeve (2) from bottom to top in the Z direction, the connecting shaft (21) is assembled in the mounting hole (11), the shaft disc (22) is arranged in the counter bore (12), and the lower surface of the shaft disc (22) is in contact with the inner surface of the counter bore (12).

3. The traveling wheel reversing device according to claim 1, characterized in that a first lug plate (23) is arranged at the lower end of the passive sleeve (2), a first shaft hole (24) is formed in the first lug plate (23), a second lug plate (41) is arranged at the top of the power box (4), a second shaft hole is formed in the second lug plate (41), the first lug plate (23) is matched with the second lug plate (41) and enables the first shaft hole (24) to be aligned with the second shaft hole, and the rotating shaft (3) is inserted into the first shaft hole (24) and the second shaft hole.

4. A road wheel reversing device according to claim 3, characterized in that the first ear plates (23) and the second ear plates (41) are each provided with two spaced apart in the Y direction, and the two second ear plates (41) are interposed between the two first ear plates (23).

5. The travelling wheel reversing device according to claim 1, wherein the fixed flange (1), the passive sleeve (2), the rotating shaft (3), the power box (4) and the travelling wheel (5) are all made of steel.

6. The rear supporting leg of the bridge girder erection machine comprises a cross beam (7), and further comprises a travelling wheel reversing device according to any one of claims 1-5, wherein a fixed flange (1) of the travelling wheel reversing device is arranged at the end part of the cross beam (7), and the passive sleeve (2) rotates relative to the fixed flange (1) to enable the power box (4) to be parallel or perpendicular to the end part of the cross beam (7).

7. The bridge girder erection machine rear leg according to claim 6, wherein the cross member (7) comprises a middle beam (71), connecting beams (72) connected to both ends of the middle beam (71), and end beams (73) connected to the connecting beams (72), the end beams (73) extending outwardly above the middle beam (71), and a lower surface of the end beams (73) for mounting the fixing flange (1).

8. The bridge girder erection machine rear leg according to claim 7, wherein the lower surface of the travelling wheel (5) protrudes from the lower surface of the intermediate girder (71).

9. The bridge girder erection machine rear leg according to claim 7, wherein the connection beams (72) at both ends are inclined in an outer figure of eight between the middle beam (71) and the end beam (73).