Temporary fixing device for mobile crane based on suspension bridge main cable

Abstract

The utility model relates to the field of mobile cranes, and discloses a mobile crane temporary fixing device based on a suspension bridge main cable, which is arranged on the lower side of a traveling mechanism and comprises a temporary hoop and two traveling roller assemblies, the upper portion of the temporary hoop is connected onto the traveling mechanism, and the lower portion of the temporary hoop is a locking assembly used for locking the main cable. The walking roller assembly can move on the track, and the track is fixed to the main cable through a connecting piece. The walking mechanism of the mobile crane can be fixed when needed, and normal movement of the walking mechanism cannot be affected.

Description

Technical Field

[0001] The utility model relates to the field of mobile cranes, in particular to a temporary fixing device for a mobile crane based on a main cable of a suspension bridge. Background Art

[0002] In the construction of suspension bridges, it is usually necessary to construct two main cables first, so that the main cables serve as the main upper load-bearing components, and then set up a mobile crane on the two main cables. The two sides of the mobile crane move on the main cables through a traveling mechanism respectively, and the traction device provides the traveling mechanism with moving power, so that the main cables are used as the main load-bearing structure, and the components and materials are transported to the set position by the mobile crane to facilitate construction and transportation.

[0003] The prior art usually sets the traveling mechanism directly on the main cable. The main cable is arc-shaped and is subjected to wind load shaking. The traveling mechanism cannot adapt well to the shape of the main cable. Therefore, the traveling mechanism is easily stuck on the main cable and cannot move, and it is also easy to damage the main cable. In order to solve the above problems, the inventors laid tracks on the main cable so that the traveling mechanism can move on the tracks.

[0004] When the mobile crane stops horizontal movement due to work needs or equipment failure, the mobile crane will still swing back and forth on the main cable under the working condition of wind load, and this working condition lasts for a long time, which is easy to cause damage to the main cable. The swinging of the mobile crane also reduces the safety of construction. Therefore, a temporary fixing device is needed, which can fix the traveling mechanism of the mobile crane when needed without affecting the normal movement of the traveling mechanism. Utility Model Content

[0005] The utility model aims to provide a temporary fixing device for a mobile crane based on a main cable of a suspension bridge, which can fix the traveling mechanism of the mobile crane when needed without affecting the normal movement of the traveling mechanism.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a temporary fixing device of a mobile crane based on the main cable of a suspension bridge, which is arranged on the lower side of a traveling mechanism, and includes a temporary clamp and two traveling roller assemblies. The lower end of the temporary clamp can lock the main cable, and the lower part of the temporary clamp is a locking assembly for locking the main cable. The traveling roller assembly can move on a track, and the track is fixed to the main cable through a connecting piece.

[0007] The beneficial effects of this program are:

[0008] 1. Safety locking function: The temporary clamp can lock the main cable when work needs it or equipment fails, effectively preventing safety hazards caused by accidental movement of the crane and ensuring the safety and stability of the maintenance process.

[0009] 2. During normal movement, just remove the bolts of the temporary clamp, which will not affect the movement of the walking mechanism.

[0010] Furthermore, the temporary hoop includes a fixed plate, which is connected to the lower side of the walking mechanism. The locking assembly includes two hoop plates, and a hoop plate is respectively provided on both sides of the fixed plate. The lower ends of the two hoop plates are connected by bolts, and the two hoop plates can cooperate to lock the main cable.

[0011] Furthermore, the upper part of the hoop plate is a vertical part, the upper end of which is hinged to the fixed plate, the lower part of the hoop plate is an arc-shaped part, the lower end of which is provided with a counterweight part, and the lower ends of the arc-shaped parts of the two hoop plates are connected by bolts, thereby locking the main cable across the track;

[0012] When the bolts on the arc-shaped parts of the two hoops are removed, the hoops release the main cable, and the hoops rotate around the fixed plate under the action of their own weight, forming an avoidance gap between the hoops and the main cable. When the walking roller assembly drives the walking mechanism to move, the connecting piece can pass through the avoidance gap.

[0013] Furthermore, the method also includes adjusting the jack, wherein the lower end of the adjusting jack can be supported on the track.

[0014] Furthermore, a plurality of temporary fixing holes are provided in the longitudinal direction on the walking mechanism, and the fixing plates of the temporary clamps are connected with the temporary fixing holes by bolts.

[0015] Furthermore, the fixing plate of the temporary clamp is connected to the walking mechanism by bolts and the connection position is adjustable.

[0016] This solution also has the following effects:

[0017] 1. When the bolts on the arc-shaped parts of the two hoops are removed, the hoops release the main cable. Since the center of gravity of the hoops is adjusted by the counterweight part, the hoops rotate around the fixed plate under the action of their own weight, and an avoidance gap is formed between the hoops and the main cable. When the walking roller assembly drives the walking mechanism to move, the connecting piece can pass through the avoidance gap, thereby avoiding collision between the connecting piece and the hoops.

[0018] 2. Since there is a track between the traveling mechanism and the main cable, the length of the hoop is lengthened through the vertical portion so that the hoop passes over the track to lock the main cable.

[0019] 3. During the maintenance process, if it is necessary to replace the walking rollers and other parts, use a temporary clamp in conjunction with the adjustment jack. Loosen the bolts of the temporary clamp while lifting the jack, which can easily lift the walking mechanism and facilitate maintenance personnel to replace the parts of the walking mechanism.

[0020] 4. Since a cable clamp is usually provided on the main cable, a plurality of temporary fixing holes are provided to facilitate adjustment of the connection position of the temporary clamp and the traveling mechanism, so that the positions of the temporary clamp and the cable clamp are staggered. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional axonometric diagram of an embodiment;

[0022] Figure 2 for Figure 1 A magnified image of point A;

[0023] Figure 3 for Figure 2 Left view of

[0024] Figure 4 for Figure 2 Cross-sectional front view. DETAILED DESCRIPTION

[0025] The following is further described in detail through specific implementation methods:

[0026] The figure marks in the drawings of the specification include: truss frame 11, lifting winch 12, lifting cable 13, walking mechanism 2, temporary fixing hole 21, walking roller assembly 3, track 4, matching hoop 41, temporary hoop 5, fixing plate 51, vertical part 52, arc part 53, counterweight part 54, adjusting jack 6, main cable 7.

[0027] Example

[0028] The embodiment is basically as follows Figure 1-Figure 4 As shown: a temporary fixing device for a mobile crane based on the main cable of a suspension bridge, suitable for a mobile crane installed on the main cable 7 of the suspension bridge, two main cables 7 are provided with tracks 4, the mobile crane includes a lifting mechanism and two walking mechanisms 2, and the two walking mechanisms 2 can move on the two tracks 4 of the suspension bridge.

[0029] like Figure 1-Figure 3 As shown, the track 4 is arranged in sections, and a connecting piece is provided between each section of the track 4. The connecting piece is a butt clamp 41, and the butt clamp 41 locks the main cable 7. The upper side of the butt clamp 41 is connected to the end of the track 4. In this embodiment, the upper side of the butt clamp 41 is welded to the end of each track 4.

[0030] like Figure 1 As shown, the lifting mechanism includes a truss frame 11, a lifting winch 12 is bolted inside the truss frame 11, a lifting cable 13 is connected to the lifting winch 12, and the lower end of the lifting cable 13 can be connected to the material to be transported; Figure 1 , Figure 2 As shown, the two walking mechanisms 2 are respectively hinged on both sides of the lifting mechanism;

[0031] This embodiment includes two travel roller assemblies 3 hinged at the lower end of the travel mechanism 2, and the travel roller assemblies 3 can move on the track 4; a plurality of temporary fixing holes 21 are longitudinally opened on the lower side of the travel mechanism 2.

[0032] like Figure 3 As shown, two temporary clamps 5 are provided between the two walking roller 32 assemblies, and the temporary clamps 5 can lock the main cable 7. Figure 2 , Figure 4 As shown, the temporary hoop 5 includes a fixing plate 51, which is bolted to the temporary fixing hole 21 on the lower side of the walking mechanism 2, and a hoop plate is hinged on both sides of the fixing plate 51, and the lower ends of the two hoop plates are connected by bolts, and the two hoop plates can cooperate to lock the main cable 7; the upper part of the hoop plate is a vertical part 52, and the vertical upper end is hinged to the fixing plate 51, and the lower part of the hoop plate is an arcuate part 53, and a counterweight part 54 is welded at the lower end of the arcuate part 53. The lower ends of the arcuate parts 53 of the two hoop plates are connected by bolts, so as to cross the track 4 and lock the main cable 7; when the bolts of the arcuate parts 53 of the two hoop plates are removed, the hoop plates release the main cable 7, and the hoop plates rotate around the fixing plate 51 under the action of their own weight, and a space avoidance gap (not shown in the figure) is formed between the hoop plates and the main cable 7, and when the walking roller assembly 3 drives the walking mechanism 2 to move, the matching hoop 4 can pass through the space avoidance gap.

[0033] like Figure 3 As shown, two adjusting jacks 6 are arranged between the two temporary hoops 5 , the upper sides of the adjusting jacks 6 are bolted to the walking mechanism 2 , and the lower ends of the adjusting jacks 6 can be supported on the track 4 .

[0034] In the present embodiment, the two structures are both hinged in the following manner: a hinge shaft passes through the two structures at the same time and is rotationally connected to the two structures at the same time. There is a certain friction between the hinge shaft and the two structures, thereby forming damping. Only when the external force is greater than the friction force, the hinge shaft will rotate relative to the two structures.

[0035] A method for using a temporary fixing device of a mobile crane based on the main cable 7 of a suspension bridge is as follows:

[0036] 1. When the traveling mechanism 2 needs to stop temporarily, the temporary hoop 5 is fastened to the main cable 7 by bolts to prevent the traveling mechanism 2 from moving; when the traveling mechanism 2 needs to move again, the bolts of the temporary hoop 5 are removed, and the hoop plate of the temporary hoop 5 releases the main cable 7. Since the center of gravity position of the hoop plate is adjusted by the counterweight part 54, the hoop plate rotates around the fixed plate 51 under the action of its own weight, and an avoidance gap is formed between the hoop plate and the main cable 7. When the traveling roller assembly 3 drives the traveling mechanism 2 to move, the connecting piece can pass through the avoidance gap, thereby avoiding collision between the connecting piece and the hoop plate.

[0037] 2. Since a track 4 is provided between the traveling mechanism 2 and the main cable 7 , the length of the hoop is lengthened by the vertical portion 52 so that the hoop passes over the track 4 and locks the main cable 7 .

[0038] 3. During the maintenance process, if it is necessary to replace parts such as the walking roller, the temporary clamp 5 is used in conjunction with the adjustment jack. While loosening the bolts of the temporary clamp 5, the jack is lifted up, which can easily lift the walking mechanism 2 and facilitate maintenance personnel to replace the parts of the walking mechanism 2.

[0039] 4. Since a cable clamp is usually provided on the main cable 7, a plurality of temporary fixing holes 21 are provided to facilitate adjustment of the position of the temporary clamp 5 so that the positions of the temporary clamp 5 and the cable clamp are staggered.

[0040] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A temporary fixing device for a mobile crane based on the main cable of a suspension bridge, characterized in that: It is arranged at the lower side of the traveling mechanism, and includes a temporary clamp and two traveling roller assemblies. The upper part of the temporary clamp is connected to the traveling mechanism, and the lower part of the temporary clamp is a locking assembly for locking the main cable. The traveling roller assembly can move on the track, and the track is fixed to the main cable through a connecting piece.

2. The temporary fixing device for a mobile crane based on the main cable of a suspension bridge according to claim 1 is characterized in that: The upper part of the temporary hoop is a fixed plate, which is connected to the lower side of the walking mechanism. The locking assembly includes two hoop plates, which are respectively arranged on both sides of the fixed plate. The lower ends of the two hoop plates are connected by bolts, and the two hoop plates can cooperate to lock the main cable.

3. The temporary fixing device for a mobile crane based on the main cable of a suspension bridge according to claim 2 is characterized in that: The upper part of the hoop plate is a vertical part, the upper end of which is hinged to the fixed plate, the lower part of the hoop plate is an arc-shaped part, the lower end of which is provided with a counterweight part, and the lower ends of the arc-shaped parts of the two hoop plates are connected by bolts, thereby locking the main cable across the track; When the bolts on the arc-shaped parts of the two hoops are removed, the hoops release the main cable, and the hoops rotate around the fixed plate under the action of their own weight, forming an avoidance gap between the hoops and the main cable. When the walking roller assembly drives the walking mechanism to move, the connecting piece can pass through the avoidance gap.

4. The temporary fixing device for a mobile crane based on the main cable of a suspension bridge according to claim 3 is characterized in that: The utility model also comprises an adjusting jack, and the lower end of the adjusting jack can be supported on the track.

5. The temporary fixing device for a mobile crane based on the main cable of a suspension bridge according to claim 4 is characterized in that: The fixing plate of the temporary clamp is connected to the walking mechanism by bolts and the connection position is adjustable.

6. The temporary fixing device for a mobile crane based on the main cable of a suspension bridge according to claim 5 is characterized in that: The temporary clamp and the adjusting jack are both arranged between the two walking roller assemblies.

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