Pushing moving device for bridge installation

Abstract

The utility model discloses a pushing and moving device for bridge installation, which comprises a jacking assembly and fixed pushing devices which are fixed on a concrete foundation, the fixed pushing devices are positioned on two sides of the jacking assembly, hydraulic cylinders are vertically arranged in the jacking assembly and the fixed pushing devices, the tops of the hydraulic cylinders are connected with riding wheel boxes with riding wheels at the tops, and the riding wheels are arranged in the riding wheel boxes. The riding wheel box is located in the vertical channel, a limiting reverse supporting device is arranged in the middle of the top of the jacking assembly, and limiting wheels are vertically and rotationally arranged at the two ends of the limiting reverse supporting device. The effects that the accuracy of bridge transferring is improved, the friction force of bridge transferring is reduced, and the efficiency of bridge pushing, moving and mounting is improved are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of jacking and moving devices, in particular to a jacking and moving device for bridge installation. Background Art

[0002] During the construction of steel bridges, the steel bridge itself cannot be used for construction, and other auxiliary equipment is required for construction and installation. The biggest advantage of the top-pushing method compared to traditional construction methods is that the approach bridge on the shore is first built as a top-pushing platform for construction, and the top-pushing erection process does not affect river navigation and does not require heavy lifting and bridge erection equipment. It is particularly suitable for occasions where large lifting equipment cannot be stationed for construction or large floating cranes are not suitable for construction.

[0003] At present, the jacking device and the lateral pushing error correction device are used for jacking and bridge movement correction respectively. The jacking mobile device adopts a fixed slide, and the bridge movement thrust is high. At the same time, the lateral pushing error correction is difficult, and the jacking mobile device is relatively high, making the bridge installation difficult.

[0004] The utility model is a new bridge jacking and transporting device proposed to solve the jacking and installation problem in the construction process of a large steel bridge. Summary of the invention

[0005] The technical problem to be solved by the utility model is that the pushing and lateral pushing error correction movement are difficult and the pushing device is inconvenient to install on a bridge that is too high.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: a jacking and moving device for bridge installation, comprising a jacking assembly and a fixed jacking device fixed on a concrete foundation, the fixed jacking device being located on both sides of the jacking assembly, hydraulic cylinders being vertically arranged in the jacking assembly and the fixed jacking device, a wheel box with a wheel on the top being connected to the top of the hydraulic cylinder, the wheel box being located in a vertical channel, a limited anti-support device being arranged in the middle of the top of the jacking assembly, and limited wheels being vertically arranged at both ends of the limited anti-support device.

[0007] Preferably, the jacking assembly includes a base, ground beams fixed at both ends of the base and a support beam fixed at the top of the ground beam, the hydraulic cylinder is installed on the base, and the wheel box is vertically slidably arranged in a vertical channel on the top of the support beam.

[0008] Preferably, the base is a horizontally arranged I-beam, the bottom of the base is connected to a channel steel, and the channel steel is pre-buried in the top of the concrete foundation.

[0009] Preferably, a crossbeam is horizontally fixedly connected between the wheel boxes located at both ends of the jacking assembly, and the limiting back-support device is located at both ends of the crossbeam. The limiting back-support device includes a mounting seat fixed on the crossbeam, and the mounting seat forms a right-angled triangle frame structure. The limiting wheel is installed on the separated surfaces of the two mounting seats.

[0010] Preferably, a support rod is connected between the two mounting seats, and the support rod is connected to the mounting seats via a pin.

[0011] 1. The utility model provides a jacking mobile device for bridge installation. By directly fixing the jacking assembly and the fixed jacking device on the concrete foundation, it is ensured that the bridge transported by the jacking mobile device is at a lower height, and the steel bridge can be moved and installed efficiently and quickly. The jacking device and the fixed jacking device can move and support the pillars at the bottom of the steel bridge, so as to realize the simultaneous transportation and installation of the steel bridge and its pillars.

[0012] 2. A limit back-support device is set in the middle of the top of the jacking assembly. The limit back-support device cooperates with the two piers at the bottom of the steel bridge to limit the lateral movement of the two piers. This can avoid the occurrence of offset during the movement of the steel bridge and improve the efficiency and accuracy of the jacking movement of the steel bridge.

[0013] 3. Support wheels and limiting wheels are arranged on the top of the jacking assembly and the side wall of the limiting anti-support device respectively, so as to convert the sliding friction of the steel bridge into rolling friction, making the steel bridge move more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0016] Figure 2 It is a schematic diagram of the structure of two lifting components in an embodiment of the utility model.

[0017] Figure 3 It is a structural schematic diagram of the jacking assembly in the embodiment of the utility model.

[0018] Figure 4 It is a top view of the lifting assembly and the limiting back-support device in the embodiment of the utility model.

[0019] In the figure: 1. Lifting assembly; 2. Support beam; 3. Ground beam; 4. Support wheel box; 5. Support wheel; 6. Hydraulic cylinder; 7. Base; 9. Limiting and reverse supporting device; 91. Mounting seat; 92. Limiting wheel; 10. Steel bridge; 11. Fixed jacking device; 12. Crossbeam; 13. Concrete foundation. DETAILED DESCRIPTION

[0020] like Figure 1-4 As shown, a jacking mobile device for bridge installation includes a jacking component 1 and a fixed jacking device 11 fixed on a concrete foundation 13. The fixed jacking device 11 is located on both sides of the jacking component 1. Hydraulic cylinders 6 are vertically arranged in the jacking component 1 and the fixed jacking device 11. The top of the hydraulic cylinder 6 is connected to a wheel box 4 with a wheel 5 on the top. The wheel box 4 is located in a vertical channel. A limited anti-support device 9 is arranged in the middle of the top of the jacking component 1. Both ends of the limited anti-support device 9 are vertically rotatably arranged with limit wheels 92.

[0021] The jacking assembly 1 is arranged perpendicular to the axial direction of the steel bridge 10. The limiting counter-support device 9 is located in the middle of the top of the jacking assembly 1 and has a span of 2.8m. There are four piers at the bottom of the steel bridge 10. The piers at both ends are supported by two fixed jacking devices 11, and the two piers in the middle are supported by both ends of the jacking assembly 1. The limiting wheel 92 is in contact with the opposite side walls of the two piers in the middle, and the steel bridge 10 is pulled to move by a winch. The jacking assembly 1 and the fixed jacking device 11 both use supporting wheels 5 to support the piers to realize the jacking movement of the steel bridge 10.

[0022] The ground beam 3 is composed of 40# I-beams, and at least two rollers 5 are installed in each roller box 4. The rotating shaft of the roller 5 is located in the roller box 4. The top of the roller 5 is higher than the top surface of the roller box 4. The bottom of the roller box 4 is flat, and the roller box 4 is driven to rise and fall by a hydraulic cylinder 6.

[0023] The fixed jacking devices 11 are installed on both sides of the jacking assembly 1 to support the same cross section of the steel bridge 10 .

[0024] like Figure 1 and Figure 2 The lifting assembly 1 comprises a base 7, ground beams 3 fixed at both ends of the base 7 and a support beam 2 fixed at the top of the ground beam 3, the hydraulic cylinder 6 is mounted on the base 7, and the wheel box 4 is vertically slidably arranged in a vertical channel at the top of the support beam 2.

[0025] The jacking assembly 1 can also be used to support the steel structure piers of the steel bridge 10. The steel structure piers are installed integrally with the bridge body before transportation, and then the entire bridge is transported. At the same time, the heights of the left and right piers are different, so that the installation height of the jacking assembly 1 at different positions can be controlled to ensure that the steel bridge 10 is in a horizontal state.

[0026] like Figure 2 and Figure 3 The base 7 is a horizontally arranged I-beam, the bottom of the base 7 is connected to a channel steel, and the channel steel is pre-buried in the top of the concrete foundation 13 .

[0027] The base 7 is made of a plurality of I-beams welded side by side and interlocked to provide a stable support for the hydraulic cylinder 6 . The ground beams 3 are arranged on both sides of the base 7 to guide and assist the lifting of the hydraulic cylinder 6 .

[0028] like Figure 1 and Figure 2 A crossbeam 12 is horizontally fixedly connected between the wheel boxes 4 at both ends of the jacking assembly 1, and the position-limiting anti-support device 9 is located at both ends of the crossbeam 12. The position-limiting anti-support device 9 includes a mounting seat 91 fixed on the crossbeam 12, and the mounting seat 91 forms a right-angled triangle frame structure. The position-limiting wheel 92 is installed on the separated surfaces of the two mounting seats 91.

[0029] The mounting seat 91 is made by welding a right-angled triangular plate structure. One right-angle side of the mounting seat 91 is connected to the crossbeam 12 made of I-beam, and the other right-angle side is used to install the limiting wheel 92. The structure is simple and can prevent the steel bridge 10 from deviating during transportation.

[0030] When the winch pulls the steel bridge 10 to move, the gap between the limiting wheel 92 and the steel bridge 10 is adjusted to 15-25 mm according to the design requirements, which can meet the installation error requirements during the actual installation of the bridge and facilitate the subsequent adjustment during the installation.

[0031] like Figure 1 and Figure 2 As shown, in order to prevent the mounting seat 91 from being hit or squeezed to a position and deformed during the movement of the steel bridge 10, a support rod is connected between the two mounting seats 91, and the support rod is connected to the mounting seat 91 through a pin. By adding the support rod, the stability of the mounting seat 91 is enhanced.

Claims

1. A pushing and moving device for bridge installation, characterized in that: The invention comprises a jacking assembly (1) and a fixed jacking device (11) fixed on a concrete foundation (13), wherein the fixed jacking device (11) is located on both sides of the jacking assembly (1), and hydraulic cylinders (6) are vertically arranged in the jacking assembly (1) and the fixed jacking device (11), and a wheel box (4) with a wheel (5) on the top is connected to the top of the hydraulic cylinder (6), and the wheel box (4) is located in a vertical channel, and a limited anti-support device (9) is arranged in the middle of the top of the jacking assembly (1), and both ends of the limited anti-support device (9) are vertically rotatably arranged with limited wheels (92).

2. A pushing and moving device for bridge installation as claimed in claim 1, characterized in that: The jacking assembly (1) comprises a base (7), a ground beam (3) fixed at both ends of the base (7), and a support beam (2) fixed at the top of the ground beam (3); the hydraulic cylinder (6) is mounted on the base (7); and the wheel box (4) is vertically slidably arranged in a vertical channel at the top of the support beam (2).

3. A pushing and moving device for bridge installation as claimed in claim 2, characterized in that: The base (7) is a horizontally arranged I-beam, the bottom of the base (7) is connected to a channel steel, and the channel steel is pre-buried in the top of the concrete foundation (13).

4. A pushing and moving device for bridge installation as claimed in claim 1, characterized in that: A crossbeam (12) is horizontally fixedly connected between the wheel boxes (4) located at both ends of the jacking assembly (1), and the limiting back-support device (9) is located at both ends of the crossbeam (12). The limiting back-support device (9) includes a mounting seat (91) fixed on the crossbeam (12), the mounting seat (91) forms a right-angled triangle frame structure, and the limiting wheel (92) is installed on the separated surfaces of the two mounting seats (91).

5. A pushing and moving device for bridge installation as claimed in claim 4, characterized in that: A support rod is connected between the two mounting seats (91), and the support rod is connected to the mounting seats (91) via a pin shaft.

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