Cable crane walking mechanism of space suspension bridge

Abstract

The utility model discloses a traveling mechanism of a cable loading crane of a space suspension bridge, belongs to the technical field of cable loading cranes, and solves the technical problem that the existing traveling mechanism cannot adapt to a variable-width main cable. The load conversion jack comprises a main body structural member designed in a split mode, the main body structural member comprises a plurality of segments which are sequentially and linearly arranged, the two sides of every two adjacent segments are fixedly connected through a connecting frame, and a load conversion jack installation base is connected between every two adjacent segments in a sliding mode. The load conversion jack mounting base is located between the connecting frames on the two sides, the connecting frames on the two sides are each provided with a transverse movement adjusting mechanism used for driving the load conversion jack mounting base to transversely move, the load conversion jack mounting base is provided with a load conversion jack, and walking rollers are arranged at the lower end of the load conversion jack. According to the utility model, the transverse movement adjusting mechanism drives the load conversion jack mounting seat to transversely move to adjust the relative position between the walking roller and the main body structural member, so that the walking mechanism can adapt to a variable-width main cable.

Description

Technical Field

[0001] This utility model relates to the field of cable-mounted crane technology, and more specifically, it relates to a traveling mechanism for a cable-mounted crane for a space suspension bridge. Background Technology

[0002] The existing cable-mounted crane traveling mechanism is a large main structural component with traveling rollers. Its main function is to form a traveling mechanical device with the main cable as the track. The traveling rollers travel in a straight line on the main cable, so that the crane can move along the direction of the main cable of the bridge at high altitude to complete various lifting operations.

[0003] However, the existing cable-mounted crane traveling mechanism has the following shortcomings: the relative position between the traveling rollers and the main structural components is fixed, and it can only travel between two parallel main cables with a fixed width (i.e., the width between the two main cables is fixed). It cannot adapt to variable-width main cables. When there is a difference in the offset position of the main cables between the front and rear traveling rollers of the traveling mechanism, it is necessary to stop frequently during the travel process to adjust the position of the traveling rollers, which affects the traveling speed of the crane. Utility Model Content

[0004] The technical problem to be solved by this utility model is to address the above-mentioned shortcomings of the prior art. The purpose of this utility model is to provide a traveling mechanism for a cable-mounted crane for a space suspension bridge, which can conveniently adjust the position of the traveling rollers during the traveling process.

[0005] The technical solution of this utility model is: a traveling mechanism for a cable-mounted crane for a space suspension bridge, comprising a split-type main structural component, the main structural component comprising several segments arranged in a straight line in sequence, the two sides of adjacent segments being fixedly connected by connecting frames, a load conversion jack mounting seat being slidably connected between adjacent segments, the load conversion jack mounting seat being located between the connecting frames on both sides, each connecting frame on both sides being provided with a lateral adjustment mechanism for driving the load conversion jack mounting seat to move laterally, the load conversion jack mounting seat being equipped with a load conversion jack, and the lower end of the load conversion jack being provided with a traveling roller.

[0006] As a further improvement, the lateral adjustment mechanism is a hydraulic jack or an electric push rod, and the extended end of the lateral adjustment mechanism is hinged to the load conversion jack mounting base.

[0007] Furthermore, a limiting sliding structure is provided between the load conversion jack mounting base and the segment.

[0008] Furthermore, the limiting sliding structure includes a slider disposed on the load conversion jack mounting base and a sliding groove disposed laterally on the segment, wherein the slider and the sliding groove are slidably connected.

[0009] Furthermore, the lower end of the connecting frame is provided with a limiting roller and a limiting drive mechanism that drives the limiting roller to contact the main cable.

[0010] Furthermore, the limiting drive mechanism is a hydraulic jack or an electric push rod.

[0011] Furthermore, the connecting frame includes a first connecting plate fixedly connected to the side wall of the segment, a second connecting plate fixedly connected between the first connecting plates of two adjacent segments, the second connecting plate being provided with a mounting base, the transverse adjustment mechanism being installed at the upper end of the mounting base, and the limit drive mechanism being installed at the lower end of the mounting base.

[0012] Furthermore, a segment at one end of the main structural member is connected to a traction top bracket via a cross hinge or a universal hinge.

[0013] Furthermore, a clamping device is provided at the bottom of the main structural component.

[0014] Furthermore, the number of segments is 5, and correspondingly, the number of load conversion jacks is 4, wherein the top of the middle segment is provided with a connecting seat for connecting the steel truss of the cable-mounted crane.

[0015] Beneficial effects

[0016] Compared with the prior art, the advantages of this utility model are as follows:

[0017] 1. When the width of the main cable changes, this utility model uses a transverse adjustment mechanism to drive the load conversion jack mounting base to transversely adjust the relative position between the traveling rollers and the main structural components, so that the span between the traveling rollers of the two traveling mechanisms of the cable crane is adapted to the width of the main cable, thereby enabling the traveling mechanism to adapt to the variable width main cable.

[0018] 2. The main structural component of this utility model is connected to the traction top support through a cross hinge or universal hinge, which allows the angle between the traction top support and the traveling mechanism to be flexibly adjusted according to the angle of the main cable. This effectively solves the limitation of the traditional traveling mechanism, which can only move up and down on the main cable of the suspension bridge (the traditional traveling mechanism can only travel on two parallel main cables with a fixed width).

[0019] 3. The connecting frame of this utility model drives the limiting roller to contact the main cable through the limiting drive mechanism, so as to effectively guide and limit the position of the walking mechanism during the walking process and prevent the walking mechanism from deviating when walking on the main cable. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 for Figure 1Enlarged view of point A in the middle;

[0022] Figure 3 This is a structural schematic diagram of the main structural component of this utility model;

[0023] Figure 4 This is a structural schematic diagram of the load conversion jack mounting base of this utility model;

[0024] Figure 5 This is a schematic diagram of the horizontal adjustment mechanism of this utility model, which is a hydraulic jack.

[0025] Figure 6 This is a schematic diagram of the limit drive mechanism of this utility model, which is a hydraulic jack.

[0026] Figure 7 This is a schematic diagram of the structure of the traction top support of this utility model;

[0027] Figure 8 This is a schematic diagram of the clamping device of this utility model.

[0028] Among them: 1-Main structural component, 2-Segment, 3-Connecting frame, 4-Load conversion jack mounting base, 5-Horizontal adjustment mechanism, 6-Load conversion jack, 7-Traveling roller, 8-Slider, 9-Limiting roller, 10-Limiting drive mechanism, 11-First connecting plate, 12-Second connecting plate, 13-Mounting base, 14-Cross hinge, 15-Traction top bracket, 16-Clamping device, 17-Connecting base, 18-Clamping clamp, 19-Clamping foot, 20-Ear plate. Detailed Implementation

[0029] The present invention will be further described below with reference to specific embodiments shown in the accompanying drawings.

[0030] See Figures 1 to 8 A traveling mechanism for a cable-stayed crane on a spatial suspension bridge includes a main structural component 1 with a split design, the main structural component 1 comprising several segments 2 arranged in a straight line sequentially. For example... Figure 3 As shown, in this embodiment, there are 5 segments 2 and 4 load conversion jacks 6. The top of the middle segment 2 is provided with a connecting seat 17 for connecting the steel truss of the cable-mounted crane.

[0031] The two sides of two adjacent segments 2 are fixedly connected by connecting frames 3. A load conversion jack mounting base 4 is slidably connected between two adjacent segments 2. The load conversion jack mounting base 4 is located between the connecting frames 3 on both sides. Both connecting frames 3 are equipped with a lateral adjustment mechanism 5 for driving the load conversion jack mounting base 4 to move laterally. A load conversion jack 6 is installed on the load conversion jack mounting base 4. The lower end of the load conversion jack 6 is equipped with a traveling roller 7. The cable crane moves on the main cable through the traveling roller 7.

[0032] When the width of the main cable changes, the relative position between the traveling roller 7 and the main structural component 1 can be adjusted by driving the load conversion jack mounting base 4 to move laterally through the lateral adjustment mechanism 5. This makes the span between the traveling rollers of the two traveling mechanisms of the cable crane match the width of the main cable, so as to adapt to the difference in the offset position of the main cable between the front and rear traveling rollers 7 of the traveling mechanism, thereby enabling the traveling mechanism to adapt to the variable width main cable.

[0033] The lateral adjustment mechanism 5 is a hydraulic jack or an electric push rod, and its extended end is hinged to the load conversion jack mounting base 4. The side wall of the load conversion jack mounting base 4 is provided with a lug plate 20, and the extended end of the lateral adjustment mechanism 5 is hinged to the lug plate 20, which can increase the flexibility of the connection between the lateral adjustment mechanism 5 and the load conversion jack mounting base 4 and prevent jamming.

[0034] When the horizontal adjustment mechanism 5 is a hydraulic jack, it has a compact structure, occupies little space, runs smoothly, and has high adjustment accuracy.

[0035] A limit sliding structure is provided between the load conversion jack mounting base 4 and the segment 2.

[0036] In this embodiment, the limiting sliding structure includes a slider 8 disposed on the load conversion jack mounting base 4 and a sliding groove disposed laterally on the segment 2. The slider 8 is slidably connected to the sliding groove, so that the load conversion jack mounting base 4 can slide laterally along the sliding groove (i.e., perpendicular to the length direction of the main structural member 1).

[0037] Of course, in other embodiments, the limiting sliding structure may include a groove laterally disposed on the load conversion jack mounting base 4 and a slider disposed on the segment 2, with the slider and the groove being slidably connected.

[0038] Furthermore, the lower end of the connecting frame 3 is equipped with a limiting roller 9 and a limiting drive mechanism 10 that drives the limiting roller 9 to contact the main cable. The limiting drive mechanism 10 drives the limiting roller 9 to contact the main cable, ensuring effective guidance and restriction of the traveling mechanism's position during movement and preventing it from deviating from its path while traveling on the main cable. The limiting roller 9 is made of nylon material. The limiting drive mechanism 10 is a hydraulic jack or an electric push rod.

[0039] Specifically, the connecting frame 3 includes a first connecting plate 11 fixed to the side wall of the connecting segment 2. A second connecting plate 12 is fixedly connected between the first connecting plates 11 of two adjacent segments 2. The second connecting plate 12 and the two first connecting plates 11 form a U-shaped structure, which serves to make way and avoid interference with the load conversion jack mounting base 4 during lateral movement. The second connecting plate 12 is provided with a mounting base 13. The lateral movement adjustment mechanism 5 is installed at the upper end of the mounting base 13, and the limit drive mechanism 10 is installed at the lower end of the mounting base 13.

[0040] One end of the main structural component 1, segment 2, is connected to a traction top support 15 via a cross hinge 14 or a universal hinge. The traction top support 15 can be adjusted in four directions: up and down, left and right, to adapt to the alignment of the main cable of the suspension bridge. This allows for flexible adjustment of the angle between the traction top support 15 and the traveling mechanism according to the angle of the main cable, effectively solving the limitation of traditional traveling mechanisms that can only move up and down on the main cable of the suspension bridge (traditional traveling mechanisms can only travel on two parallel main cables of fixed width, while conventional traction top supports can only be adjusted in the up and down direction).

[0041] The bottom of the main structural component 1 is equipped with a clamping device 16, which includes a clamp 18. The clamp 18 is installed at the bottom of the main structural component 1 (segment 2) via clamping feet. There are two clamping devices 16, which are arranged at intervals. When the cable-mounted crane needs to lift the bridge component, the clamping device 16 clamps the traveling mechanism to the main cable to prevent the cable-mounted crane from moving and to ensure safety.

[0042] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model, and these will not affect the implementation effect of this utility model or the practicality of the patent.

Claims

1. A traveling mechanism for a cable-mounted crane on a spatial suspension bridge, characterized in that, The main structure (1) is designed in a split manner. The main structure (1) includes several segments (2) arranged in a straight line in sequence. The two sides of two adjacent segments (2) are fixedly connected by connecting frames (3). A load conversion jack mounting base (4) is slidably connected between two adjacent segments (2). The load conversion jack mounting base (4) is located between the connecting frames (3) on both sides. Both connecting frames (3) on both sides are provided with a lateral adjustment mechanism (5) for driving the load conversion jack mounting base (4) to move laterally. A load conversion jack (6) is installed on the load conversion jack mounting base (4). The lower end of the load conversion jack (6) is provided with a traveling roller (7).

2. The traveling mechanism of a cable-mounted crane for a spatial suspension bridge according to claim 1, characterized in that, The lateral adjustment mechanism (5) is a hydraulic jack or an electric push rod, and the extended end of the lateral adjustment mechanism (5) is hinged to the load conversion jack mounting base (4).

3. The traveling mechanism of a cable-mounted crane for a spatial suspension bridge according to claim 1, characterized in that, A limiting sliding structure is provided between the load conversion jack mounting base (4) and the segment (2).

4. The traveling mechanism of a cable-mounted crane for a spatial suspension bridge according to claim 3, characterized in that, The limiting sliding structure includes a slider (8) disposed on the load conversion jack mounting base (4) and a sliding groove disposed laterally on the segment (2), wherein the slider (8) is slidably connected to the sliding groove.

5. The traveling mechanism of a cable-mounted crane for a spatial suspension bridge according to claim 1, characterized in that, The lower end of the connecting frame (3) is provided with a limiting roller (9) and a limiting drive mechanism (10) that drives the limiting roller (9) to contact the main cable.

6. The traveling mechanism of a cable-mounted crane for a spatial suspension bridge according to claim 5, characterized in that, The limiting drive mechanism (10) is a hydraulic jack or an electric push rod.

7. The traveling mechanism of a cable-mounted crane for a spatial suspension bridge according to claim 5, characterized in that, The connecting frame (3) includes a first connecting plate (11) fixedly connected to the side wall of the segment (2), a second connecting plate (12) fixedly connected between the first connecting plates (11) of two adjacent segments (2), the second connecting plate (12) is provided with a mounting seat (13), the transverse adjustment mechanism (5) is installed at the upper end of the mounting seat (13), and the limit drive mechanism (10) is installed at the lower end of the mounting seat (13).

8. The traveling mechanism of a cable-mounted crane for a space suspension bridge according to claim 1, characterized in that, The segment (2) at one end of the main structural component (1) is connected to a traction top bracket (15) via a cross hinge (14) or a universal hinge.

9. The traveling mechanism of a cable-mounted crane for a spatial suspension bridge according to claim 1, characterized in that, The bottom of the main structural component (1) is provided with a clamping device (16).

10. The traveling mechanism of a cable-mounted crane for a space suspension bridge according to claim 1, characterized in that, The number of segments (2) is 5, and the number of load conversion jacks (6) is 4. The top of the middle segment (2) is provided with a connecting seat (17) for connecting the steel truss of the cable-mounted crane.

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