Bridge sling crawling device

Abstract

The utility model relates to the technical field of sling crawling equipment, in particular to a bridge sling crawling device which comprises a pair of machine frames, the machine frames are hinged to each other in a rotating mode and fixed through a fastener, the machine frames crawl along a sling through driving devices arranged in the machine frames, and deviation preventing mechanisms are further arranged in the machine frames. The deviation prevention mechanism is used for preventing the rack from crawling to cause lateral deviation; wherein the deviation prevention mechanism comprises a fixed seat and a guide wheel, an adjusting part used for adjusting the tension of the guide wheel is arranged in the fixed seat, the fixed seat is further detachably connected with the guide wheel through the fixed part, and the tightness degree of the guide wheel is adjusted by adjusting the tension of a first spring. The guide wheel can abut against slings with different diameters within a certain range, an auxiliary effect is achieved, good stability is provided for the rack, the guide wheel can be replaced through the fixing piece, and the situation that the sling detection efficiency is affected by tedious replacement steps is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of cable crawling equipment, and in particular to a bridge cable crawling device. Background Technology

[0002] Bridge cables are an important structural component of catenary and cable-stayed bridges. They are mainly used to bear the loads on the bridge deck and transfer these loads to the bridge towers or anchorage structures.

[0003] Long-term use of suspension cables requires inspection to ensure safety. Therefore, a bridge suspension cable crawling device is needed to drive the inspection equipment along the cable. For example, Chinese Patent Publication No. CN117904961A discloses a cable-climbing robot for detecting damage to the PE sheath surface of suspension bridge main cables, suspenders, and cable-stayed bridge cables. It includes a two-half frame, a crawling mechanism, a drive mechanism, an anti-deviation mechanism, and a camera assembly. The crawling mechanism, drive mechanism, anti-deviation mechanism, and camera assembly are all connected to the two-half frame. This invention has a simple structure, is easy to assemble and disassemble, has strong obstacle-crossing ability, is reliable in operation, and can be used for cables of different diameters.

[0004] However, in actual operation, the anti-deviation rod used to fix the anti-deviation wheel assembly is fixed to the frame with locking bolts. Furthermore, because the diameter of the slings used on different bridges is not consistent, it is not easy to adjust the tension of the anti-deviation wheel assembly, which affects the working efficiency of the crawling device. Moreover, it is not easy to replace the anti-deviation wheel assembly after long-term use. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing anti-deviation wheel sets, such as inconvenience in tension adjustment and replacement, and to propose a bridge cable crawling device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a bridge cable crawling device, including a pair of frames, which are hinged and rotated between each other and fixed together by fasteners. The frames crawl along the cable by an internal drive device and are also equipped with an anti-deviation mechanism to prevent the frames from deviating laterally during crawling.

[0008] The anti-deviation mechanism includes a fixed base and a guide wheel. The fixed base is provided with an adjusting component for adjusting the tension of the guide wheel. The fixed base is also detachably connected to the guide wheel through the fixing component.

[0009] Furthermore, the drive device includes a motor and a traction wheel. The motor is fixed to the side of the traction wheel base to drive the traction wheel to rotate. A pair of traction wheels are disposed on the side of the frame through a buffer mechanism, and the two traction wheels close together to abut against the sling.

[0010] Furthermore, the adjusting component includes a connecting rod and a base for fixing the guide wheel. The connecting rod is slidably connected to the fixed base and extends to provide a manual part. One end of the connecting rod is slidably connected to the fixed base, and the other end is threadedly connected to a slider.

[0011] Furthermore, the slider is slidably connected to the fixed base and has positioning blocks on both sides. The inner wall of the opening of the fixed base has positioning grooves corresponding to the positioning blocks. An end cap is provided at the other end of the fixed base. A first spring is sleeved around the connecting rod, and the two ends of the first spring abut against the slider and the end cap.

[0012] Furthermore, the fixing component includes a retaining plate, one end of the connecting rod is fixed with a baffle and rotatably connected to the base via a bearing, and one end of the connecting rod is provided with a sliding groove in which a pair of retaining plates are slidably connected.

[0013] Furthermore, the pair of card plates are arranged opposite each other, and their opposite ends are fixedly connected to a second spring and provided with a locking part. The card plates are limited in the slide groove by the locking part, and the two sides of the base respectively abut against the baffle and the pair of card plates.

[0014] The bridge cable crawling device proposed in this utility model has the following advantages: This utility model uses a motor to drive the traction wheels on both sides to drive the frame to crawl along the cable. In order to prevent the frame from deviating during crawling, an anti-deviation mechanism is set up. The tension of the guide wheel is adjusted by adjusting the tension of the first spring to ensure that the guide wheel can press against cables of different diameters within a certain range, which plays an auxiliary role and provides good stability to the frame. Furthermore, the guide wheel can be replaced by a fixing component, avoiding cumbersome replacement steps that affect the efficiency of cable inspection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 for Figure 1 A magnified structural diagram of area A;

[0017] Figure 3 This is an enlarged cross-sectional view of the adjusting component of this utility model;

[0018] Figure 4 This is an enlarged view of the structure of the fastener of this utility model;

[0019] Figure 5 for Figure 4 A magnified structural diagram of region B.

[0020] In the diagram: 1. Frame; 2. Fastener; 3. Drive unit; 31. Motor; 32. Traction wheel; 33. Buffer mechanism; 4. Anti-deviation mechanism; 41. Fixed base; 42. Guide wheel; 5. Adjusting component; 51. Connecting rod; 52. Base; 53. Slider; 54. Positioning block; 55. End cover; 56. First spring; 6. Fixing component; 61. Clamping plate; 62. Baffle; 63. Second spring; 64. Clamping part. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-5 A bridge cable crawling device includes a pair of frames 1, which are hinged and rotated together and fixed by fasteners 2. The frame 1 crawls along the cable by an internally provided drive device 3, and is also provided with an anti-deviation mechanism 4 inside, which is used to prevent the frame 1 from deviating laterally during crawling.

[0023] The anti-deviation mechanism 4 includes a fixed base 41 and a guide wheel 42. The fixed base 41 is provided with an adjusting member 5 for adjusting the tension of the guide wheel 42. The fixed base 41 is also detachably connected to the guide wheel 42 through a fixing member 6.

[0024] Specifically, the fastener 2 includes a pair of connecting seats provided on the side of the frame 1, a locking bolt passing through the pair of connecting seats, and a fixing nut threaded onto the locking bolt. The pair of frames 1 are closed and fixed by tightening the fixing nut.

[0025] Furthermore, the drive device 3 includes a motor 31 and a traction wheel 32. The motor 31 is fixed to the side of the base of the traction wheel 32 to drive the traction wheel 32 to rotate. A pair of traction wheels 32 are arranged on the side of the frame 1 through a buffer mechanism 33, and the two traction wheels 32 close together to abut against the sling.

[0026] It should be added that the buffer mechanism 33 includes a support rod and a damping rod. The support rod and the damping rod are pin-connected and rotatable to the frame 1. A spring is sleeved around the damping rod, and its movable end is pin-connected and rotatable to the support rod. The end of the support rod is pin-connected to the wheel frame of the traction wheel 32.

[0027] Furthermore, the adjusting component 5 includes a connecting rod 51 and a base 52 for fixing the guide wheel 42. The connecting rod 51 is slidably connected to the fixed base 41 and extends to provide a manual part. One end of the rod is slidably connected to the fixed base 41, and the other end is threadedly connected to a slider 53.

[0028] More specifically, the slider 53 is slidably connected to the fixed base 41 and has positioning blocks 54 on both sides. The inner wall of the opening of the fixed base 41 has positioning grooves corresponding to the positioning blocks 54. An end cap 55 is provided at the other end of the fixed base 41. A first spring 56 is sleeved around the connecting rod 51. The two ends of the first spring 56 abut against the slider 53 and the end cap 55.

[0029] It is worth mentioning that the end cap 55 is fixed to the fixed seat 41 by locking bolts. The end cap 55 is used to support the first spring 56 and limit the slider 53. The center point of the end cap 55 is provided with a relief groove, and it is rotatably connected to the connecting rod 51 through the relief groove.

[0030] Specifically, by rotating the connecting rod 51 through the manual part, the slider 53 is driven and moves under the action of the positioning block 54 while the connecting rod 51 rotates. The tension of the first spring 56 is adjusted by changing the position of the slider 53.

[0031] Under normal circumstances, when the first spring 56 relaxes the connecting rod 51, it provides greater room for movement, making it easier for the guide wheel 42 to adapt to a sling with a larger diameter and preventing jamming. Conversely, when the first spring 56 relaxes the connecting rod 51, it restricts the room for movement, ensuring that the guide wheel 42 can press against the sling and avoiding insufficient pressure.

[0032] In general, the fixing member 6 includes a clamping plate 61, one end of the connecting rod 51 is fixed with a baffle 62 and is rotatably connected to the base 52 through a bearing, and one end of the connecting rod 51 is provided with a sliding groove, in which a pair of clamping plates 61 are slidably connected.

[0033] Finally, the pair of card plates 61 are arranged opposite each other, and their opposite ends are fixedly connected to a second spring 63 and provided with a locking part 64. The card plates 61 are limited in the slide groove by the locking part 64, and the two sides of the base 52 respectively abut against the baffle 62 and the pair of card plates 61.

[0034] Specifically, a pair of sliding grooves are provided at one end of the connecting rod 51, and the locking plate 61 is movably inserted into the sliding grooves by the second spring 63;

[0035] In actual operation, the pair of clamping plates 61 abut against one side of the base 52 under the support of the second spring 63, while the other side of the base 52 is restricted by the baffle 62 to achieve a fixing effect.

[0036] Working method: During operation, press a pair of locking plates 61 simultaneously to retract them into the sliding groove. The base 52 is no longer fixed and can be disassembled from the connecting rod 51. After replacing the new guide wheel 42, the pair of locking plates 61, supported by the second spring 63, abut against one side of the base 52 and work with the baffle 62 to fix the base 52.

[0037] Then, the sling is placed between the traction wheels 32 on both sides. The connecting rod 51 is rotated manually. As the connecting rod 51 rotates, the slider 53 is driven and moves under the action of the positioning block 54. The tension of the first spring 56 is adjusted by changing the position of the slider 53.

[0038] After the traction wheel 32 and the guide wheel 42 are both pressed against the sling, the motor drives the traction wheel 32 to move the frame 1 along the sling.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A bridge cable climbing device comprising a pair of carriages (1), characterised in that: A pair of said frame (1) between the hinge rotation and through fastener (2) is fixed, the frame (1) through the internal drive device (3) is arranged along the cable climbing, and the internal drive device (3) is further provided with anti-deviation mechanism (4), the anti-deviation mechanism (4) is used for preventing the frame (1) from climbing side deviation; Wherein, the anti-deviation mechanism (4) includes fixed seat (41) and guide wheel (42), the fixed seat (41) is provided with adjusting part (5) for adjusting the guide wheel (42) tensioning, the fixed seat (41) is further detachably connected with the guide wheel (42) through fixing part (6).

2. A bridge cable climbing device according to claim 1, characterised in that: The drive device (3) includes motor (31) and traction wheel (32), the motor (31) is fixed on the side of the traction wheel (32) base and is used for driving the traction wheel (32) rotation, a pair of the traction wheel (32) is arranged on the side of the frame (1) through the buffer mechanism (33), and the traction wheel (32) on both sides is folded and tightly contacted with the cable.

3. A bridge cable climbing device according to claim 1, wherein: The adjusting part (5) includes connecting rod (51) and base (52) for fixing the guide wheel (42), the connecting rod (51) is slidably connected in the fixed seat (41) and is provided with a manual part in extension, one end of the connecting rod (51) is slidably connected with the fixed seat (41), and the other end is threadedly connected with a sliding block (53).

4. A bridge cable climbing device according to claim 3, wherein: The sliding block (53) is slidably connected in the fixed seat (41), and both sides are provided with positioning block (54), the inner wall of the opening of the fixed seat (41) is provided with positioning groove corresponding to the positioning block (54), the other end of the fixed seat (41) is provided with an end cover (55), the periphery of the connecting rod (51) is provided with a first spring (56), and both ends of the first spring (56) abut against the sliding block (53) and the end cover (55).

5. A bridge cable climbing device according to claim 3, wherein: The fixing part (6) includes a clamping plate (61), one end of the connecting rod (51) is fixed with a baffle (62) and is rotatably connected with the base (52) through a bearing, one end of the connecting rod (51) is provided with a sliding groove, and a pair of the clamping plate (61) is slidably connected in the sliding groove.

6. A bridge cable climbing device according to claim 5, wherein: A pair of the clamping plate (61) is oppositely arranged, and the opposite ends are fixedly connected with a second spring (63) and are provided with a clamping part (64), the clamping plate (61) is limited in the sliding groove through the clamping part (64), and the both sides of the base (52) abut against the baffle (62) and a pair of the clamping plate (61) respectively.

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