CN112227196A - Self-traction type main cable maintenance device and maintenance construction method - Google Patents
Self-traction type main cable maintenance device and maintenance construction method Download PDFInfo
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- CN112227196A CN112227196A CN202011016835.8A CN202011016835A CN112227196A CN 112227196 A CN112227196 A CN 112227196A CN 202011016835 A CN202011016835 A CN 202011016835A CN 112227196 A CN112227196 A CN 112227196A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/106—Movable inspection or maintenance platforms, e.g. travelling scaffolding or vehicles specially designed to provide access to the undersides of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the technical field of bridge maintenance and overhaul, in particular to a self-traction type main cable overhaul device and an overhaul construction method, wherein the overhaul construction method comprises the following steps: starting the rope conveying vehicle to enable the rope conveying vehicle to run on the handrail rope, dragging the traction rope to a set position, and braking; starting a winch to wind the traction rope, driving the maintenance vehicle to move on the main cable and the handrail rope, and braking to an maintenance position to perform maintenance; after the overhaul of the overhaul positions is completed, the brake of the rope conveying vehicle is released, and the rope conveying vehicle and the overhaul vehicle are repeatedly moved until the overhaul of all the overhaul positions is completed. The problem that in the prior art, cable maintenance equipment walks on a main cable to be shaped, easily damages the main cable and cannot penetrate through a cable clamp position can be solved.
Description
Technical Field
The invention relates to the technical field of bridge pipe maintenance and overhaul, in particular to a self-traction type main cable overhaul device and an overhaul construction method.
Background
At present along with the brisk development of bridge engineering construction, the use of large-span bridge is more and more general, the suspension bridge is because its molding is graceful, trafficability characteristic is strong, very extensive application has been obtained, compare in other structure bridge, the suspension bridge can be accomplished great span with less material, the bridge floor is higher relatively, the ship trafficability characteristic is better, build the bridge in-process also need not build interim pier, can build the large-span bridge in the relatively complicated waters of waters environment, consequently, become one of the first-selected bridge structures of modern bridge construction.
The main cable is the most important stressed member of the suspension bridge and is also the main bearing member of the suspension bridge, the main cable of the suspension bridge is generally made of high tensile strength steel (steel wire, steel strand, steel cable, etc.), it bears the heavy load of the bridge girder and the vehicle, the service condition, the service performance, the service life and the like of the main cable are closely related to the safety of the bridge structure. On the main cable, besides the main cable, a sling locking clamp, a cable clamp screw, a main cable dehumidification system, a bridge main cable linear monitoring system sensor and other auxiliary system sensors are arranged. Generally, after a certain service life, main cables of bridges are prone to damage such as corrosion, wire breakage and protective layer falling, cable clamp screws on the main cables are prone to damage such as screw loosening, bolt loosening, cable clamp sliding, cable clamp steel structure corrosion and paint falling, and other auxiliary facilities on the main cables are also prone to the problems. Regular inspection and maintenance of the main cables of a suspension bridge is therefore an extremely important task in the field of bridge maintenance and management.
Generally, the height difference of the main cable from the main tower of the bridge to the bridge floor is more than one hundred meters, and the overhaul work of accessories such as the main cable, a sling cable clamp, a main cable dehumidifying device and the like is difficult. At present, what mainly adopted is that artifical walking is overhauld the operation of managing in the mode of main push-towing rope access road, especially need carry when overhauing equipment, for example main push-towing rope presss from both sides screw rod stretch-draw equipment, maintenance spraying and other overhaul when detecting, artifical walking overhauls the operation difficulty very big, and work safety risk is high, and artifical intensity of labour is big. Under the condition of large-scale operation, except manual hiking maintenance, an maintenance vehicle capable of advancing along a main cable is usually adopted for auxiliary maintenance operation, but the walking mechanism of the existing main cable working vehicle is limited by the structure, so that accessories such as a cable clamp, an air inlet and outlet cover, a temperature and humidity sensor and the like on the main cable are difficult to safely avoid, and the difficulty of maintenance is increased. The main working objects of the existing inspection machine needle are a main cable, a cable saddle, a suspension cable, a support column and the like.
At present, the cable maintenance equipment capable of automatically walking mainly adopts a wheel type structure, the wheel type walking mechanism is mainly concentrated in the contact position of a wheel bottom and a main cable due to the walking characteristic of the design, the walking on the main cable is influenced by the self weight, the damage to the main cable is usually easy to cause, the equipment can only walk on the cable without an auxiliary structure, and for the cable bridge adopting the main cable and suspension cable structure, the equipment can not normally walk on the main cable due to the fact that the equipment can not span the main cable and suspension cable nodes.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a self-traction type main cable maintenance device and a maintenance construction method, which can solve the problems that cable maintenance equipment in the prior art runs on a main cable, the main cable is easily damaged, and the cable cannot pass through a cable clamp position.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
in one aspect, the present invention provides a self-traction main cable maintenance apparatus, comprising:
the maintenance vehicle is movably arranged on the main cable and the handrail rope, and a winch provided with a traction rope is arranged on the maintenance vehicle;
the rope conveying vehicle can run in a self-driven mode, is arranged on the handrail rope and can brake on the handrail rope, and the rope conveying vehicle can pull the traction rope out of the winch when running.
On the basis of the technical scheme, the maintenance vehicle comprises:
a main body;
at least two groups of walking mechanisms which are arranged at intervals, are arranged below the main body and are used for being arranged on the main cable;
the bearing platform is arranged on the main body, and the winch is arranged on the bearing platform;
and the two groups of sliding devices are respectively arranged below two sides of the bearing platform and are used for being arranged on the handrail rope.
On the basis of the technical scheme, each walking mechanism comprises:
the rotating shaft of the triangular frame body is rotatably arranged below the main body;
and the three wheels are respectively and rotatably arranged at three corners of the triangular frame body.
On the basis of the technical scheme, the lower part of the main body is provided with the mounting support of the rotating shaft, a spring connecting piece is arranged in the mounting support, and the rotating shaft is mounted in the mounting support through the spring connecting piece.
On the basis of the technical scheme, each group of sliding devices comprises at least two pulleys arranged at intervals and used for being arranged on the handrail rope, each pulley is provided with a brake and each pulley, and a jacking device is arranged above each pulley and used for jacking the bearing platform.
On the basis of the technical scheme, the rope conveying vehicle comprises four driving mechanisms which are respectively arranged on the traction rope in pairs, and each driving mechanism comprises:
the seat body is arranged below the rope conveying vehicle main body, and an accommodating groove is formed in the seat body;
the gyro wheel, it is located through the pivot in the holding tank, the gyro wheel is the cell type walking wheel, just the cell type walking type wheel includes notch cuttype smooth transition's inside groove and ectoine, the width of ectoine is greater than the width of inside groove.
On the basis of the technical scheme, each roller is provided with a braking device, and each braking device comprises:
a brake pad that is matched with the grab rail;
the brake pressing frame comprises a pressing column and a pressing plate, two ends of the pressing column are respectively connected with the brake piece and the pressing plate, and two ends of the pressing plate are provided with screw holes;
and the two bolts penetrate through the screw holes and are fixed on the seat bodies on the two sides of the accommodating groove, and the braking force of the braking piece on the handrail rope can be adjusted by rotating the nuts corresponding to the bolts.
On the basis of the technical scheme, the rope conveying vehicle is connected with the traction rope through a line concentration row, the line concentration row is further connected with a lapping device through a rope, and the lapping device is an L-shaped electromagnetic suction claw and is used for lapping and fixing the L-shaped electromagnetic suction claw on a cable clamp of the main cable.
On the other hand, the invention also provides a self-traction type main cable maintenance construction method, which comprises the following steps:
starting the rope conveying vehicle to enable the rope conveying vehicle to run on the handrail rope, dragging the traction rope to a set position, and braking;
starting a winch to wind the traction rope, driving the maintenance vehicle to move on the main cable and the handrail rope, and braking to an maintenance position to perform maintenance;
after the overhaul of the overhaul positions is completed, the brake of the rope conveying vehicle is released, and the rope conveying vehicle and the overhaul vehicle are repeatedly moved until the overhaul of all the overhaul positions is completed.
On the basis of the technical scheme, when the maintenance vehicle moves to the cable clamp of the main cable, the jacking device arranged above the pulley is adopted to jack the bearing platform, and then the winch is used for collecting the traction rope to drive the maintenance vehicle to cross the cable clamp.
Compared with the prior art, the invention has the advantages that: when the self-traction type main cable maintenance device and the maintenance construction method are used, the rope conveying vehicle is arranged on the handrail rope, the maintenance vehicle is arranged on the main cable and the handrail rope, and the rope conveying vehicle is arranged above the maintenance vehicle. And starting the rope conveying vehicle to enable the rope conveying vehicle to run on the handrail rope, dragging the traction rope to a set position, and braking. Then, the winch is started to wind the traction rope, so that the traction rope drives the maintenance vehicle to move on the main cable and the handrail rope, and the main cable and the handrail rope reach the maintenance position to be braked so as to be maintained. After the overhaul of the overhaul positions is completed, the brake of the rope conveying vehicle is released, and the rope conveying vehicle and the overhaul vehicle are repeatedly moved until the overhaul of all the overhaul positions is completed. The device is adopted to enable the rope conveying vehicle to be arranged on the hand rope to drag the traction rope in advance, and then the traction rope is wound by the maintenance vehicle, so that the traction rope drives the maintenance vehicle to move on the main cable and the hand rope. In such a mode, the maintenance vehicle can reduce a driving system, and the main cable and the handrail rope share the weight of the maintenance vehicle by arranging the maintenance vehicle on the main cable and the handrail rope, so that the damage to the main cable can be reduced, and the device can easily span the position of the cable clamp. In addition, the winch winds the traction rope to pull the maintenance vehicle, the gravity of the maintenance vehicle in the vertical direction can be reduced when the maintenance vehicle is pulled, and the damage to the main cable can be reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a self-propelled main cable maintenance device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a traveling mechanism according to an embodiment of the present invention;
FIG. 3 is a state diagram of the rope conveying vehicle during braking according to the embodiment of the invention;
fig. 4 is an enlarged schematic view of the driving mechanism in the embodiment of the present invention.
In the figure: 1. an inspection vehicle; 10. a hauling rope; 11. a winch; 12. a main body; 13. a bearing platform; 14. a traveling mechanism; 141. a triangular frame body; 142. a wheel; 143. a spring connector; 15. a sliding device; 151. a pulley; 16. a hanging basket; 2. a main cable; 21. a cable clamp; 22. a support; 3. a handrail rope; 4. a rope conveying vehicle; 41. a roller; 42. a braking device; 421. a brake pad; 422. braking and pressing the frame; 423. a bolt; 43. a line concentration row; 44. a lapping device; 45. a base body.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a self-traction main cable maintenance device in an embodiment of the present invention, and as shown in fig. 1, the present invention provides a self-traction main cable maintenance device, including: the maintenance vehicle 1 is movably arranged on the main cable 2 and the handrail rope 3, and a winch 11 provided with a traction rope 10 is arranged on the maintenance vehicle 1; the rope conveying trolley is characterized by further comprising a rope conveying trolley 4, the rope conveying trolley 4 is connected with a traction rope 10, can run in a self-driven mode and is used for being arranged on the grab rail 3, and the traction rope 10 can be drawn out of the winch 11 when the rope conveying trolley 4 is braked on the grab rail 3 to run.
When the self-traction type main rope maintenance device is used, the rope conveying vehicle 4 is installed on the handrail rope 3, the maintenance vehicle 1 is installed on the main rope 2 and the handrail rope 3, and the rope conveying vehicle 4 is arranged above the maintenance vehicle 1. The rope conveying vehicle 4 is started to run on the handrail rope 3, and the traction rope 10 is dragged to a set position to be braked. Then, the winch 11 is started, the winch 11 is made to wind the traction rope 10, the traction rope 10 drives the maintenance vehicle 1 to move on the main cable 2 and the handrail rope 3, and the main cable and the handrail rope reach the maintenance position to be braked so as to be maintained. After the overhaul of the overhaul positions is completed, the brake of the rope conveying vehicle 4 is released, and the rope conveying vehicle 4 and the overhaul vehicle 1 are repeatedly moved until the overhaul of all the overhaul positions is completed. And in this case both the main body of the service trolley 1 and the rope trolley 4 can freely pass through the bracket 22 of the grab rail 3 at the cable clamp 21. By adopting the device, the rope conveying vehicle 4 is arranged on the handrail rope 3 to drag the traction rope 10 in advance, and then the maintenance vehicle 1 winds the traction rope 10, so that the traction rope 10 drives the maintenance vehicle 1 to move on the main cable 2 and the handrail rope 3. In this way, the maintenance vehicle 1 can reduce the driving system, and the main cable 2 and the handrail rope 3 share the weight of the maintenance vehicle 1 by arranging the maintenance vehicle 1 on the main cable 2 and the handrail rope 3, so that the damage to the main cable can be reduced, and the device can easily stride over the position of the cable clamp 21.
In this embodiment, the rope trolley 4 is braked after reaching a set position, which is generally the position of the cable clamp 21 on the main cable 2. The maintenance position in this embodiment may be any position below the set position from the rope conveying vehicle 4.
In some alternative embodiments, the maintenance vehicle 1 comprises: a main body 12; the device also comprises at least two groups of walking mechanisms 14 which are arranged at intervals, are arranged below the main body 12 and are used for being arranged on the main cable 2; the hoisting device also comprises a bearing platform 13 which is arranged on the main body 12, and the hoisting machine 11 is arranged on the bearing platform 13; and two groups of sliding devices 15 which are respectively arranged on the lower sliding devices 15 at the two sides of the bearing platform 13 and are used for being arranged on the handrail rope 3.
In this embodiment, the width of the main body 12 is smaller than the separation distance of the two handrail ropes 3, i.e. the main body 12 can pass through the bracket 22 of the handrail ropes 3 at the cord clip 21. Two sets of walking mechanisms 14 arranged at intervals are arranged in the middle part below the main body 12 and used for sliding on the main cable 2. Two sets of sliding devices 15 are provided below the platform 13 for sliding on the grab-rail 3. Thereby, the weight of the maintenance vehicle 1 is shared by the grab rope 3 and the main cable 2, and the maintenance vehicle 1 can smoothly pass through the bracket 22 at the cable clamp 21.
Fig. 2 is a schematic structural diagram of a traveling mechanism in an embodiment of the present invention, as shown in fig. 2, and in some alternative embodiments, each traveling mechanism 14 includes: a triangular frame body 141, the rotating shaft of the triangular frame body 141 is rotatably arranged below the main body 12; and three wheels 142 rotatably provided at three corners of the triangular frame body 141, respectively.
In this embodiment, the tool car is including adopting three running gear groups, and when normally walking, through two wheels 142 contact main push-towing rope on one side of triangle-shaped support body 141, when meetting the obstacle, through the upset of third wheel, cross the obstacle. In design, the diameter of the wheel 142 is larger than the required threshold height value, namely larger than the thickness of the cable clamp 21, so that the wheel can conveniently cross the obstacle.
In some alternative embodiments, a mounting seat for the rotating shaft is provided below the main body 12, and a spring connector 143 is provided in the mounting seat, and the rotating shaft is mounted in the mounting seat through the spring connector.
In this embodiment, each triangular frame 141 is configured with a mounting seat for mounting the rotating shaft, the mounting seat for each rotating shaft includes brackets arranged in parallel at intervals, a spring connector is arranged in each bracket for connecting the rotating shaft, and the spring connector can be adaptively adjusted in the brackets. Thereby ensuring that the height self-adaptation of the walking mechanism 14 can be adjusted in a self-adaptation way within a certain range after the whole walking mechanism crosses the obstacle.
In some alternative embodiments, each set of sliding means 15 comprises at least two pulleys 151 arranged at intervals for being provided on the handrail rope 3, and each pulley 151 is provided with a brake. And a jacking device is arranged above each pulley 151 and used for jacking the bearing platform 13.
In the present embodiment, the platform 13 is provided on the grab rail 3 by 4 pulleys 151 and is slidable to bear the weight of the entire maintenance vehicle 1. And a brake is provided for each pulley 151, and is braked by the brake after the maintenance vehicle 1 reaches the maintenance position. In this example, the jacking device may be a hydraulic jack.
In addition, a jacking device is arranged above each pulley 151, and before reaching the position of the cable clamp 21, when the running mechanism 14 is found to damage the outer coating surface of the main cable 2, the jacking device is started to support the supporting platform 13, so that the handrail rope 3 bears more dead weight of the maintenance car 1, the damage to the main cable 2 is reduced, and the winch 11 contracts the steel wire rope between the rope conveying trolleys to play a role of moving the maintenance car. When crossing over the barrier, the jacking device can be lifted to increase the supporting force of the grab rail 3 to the maintenance vehicle 1, so that the maintenance vehicle 1 can conveniently cross over the cable clamp 21.
In some alternative embodiments, the two sides of the platform 13 are also provided with baskets 16 respectively. In this embodiment, two handrail ropes 3 are extended from both sides of the platform 13, and the gondola 16 is suspended from the extended portions of both sides of the platform 13 so that the gondola 16 can smoothly pass through the supports 22 of the handrail ropes 3. Hanging baskets 16 are arranged on two sides of the bearing platform 13, and operators can construct in the hanging baskets 16 or put maintenance equipment by using the hanging baskets 16. The gondola 16 can be raised and lowered by another hoist so that the gondola 16 can service the appurtenances to which the main cable 2 is connected.
Fig. 3 shows a state of the rope carriage in an embodiment of the invention when it is braked, fig. 4 shows an enlarged view of the drive mechanism in an embodiment of the invention, as shown in fig. 3 and 4, in some alternative embodiments, the rope carriage 4 comprises four drive mechanisms for setting on the traction rope 10, two drive mechanisms each comprising: the seat body 45 is arranged below the main body of the rope conveying vehicle 4, and an accommodating groove is formed in the seat body 45; still include gyro wheel 41, it locates in the holding tank through the pivot, and gyro wheel 41 is the cell type walking wheel, and the cell type walking wheel includes notch cuttype smooth transition's inside groove and ectosome, and the width of ectosome is greater than the width of inside groove.
The rope conveying vehicle 4 adopts a special groove-shaped walking wheel which can be driven by self, and the groove-shaped walking wheel is characterized by having two walking wheel diameters. Wherein the small circle radius of inside groove and wire rope's radius keep unanimous, the big circle radius of urceolus is unanimous with handrail rope clip radius on the wire rope, this type of groove walking wheel has guaranteed that wire rope can go deep into the embedding steel wheel when walking on wire rope, has guaranteed the walking security, has guaranteed to be difficult to the derail, outside big circular radius has adapted to handrail rope clip external diameter in addition, has guaranteed to pass through wire rope handrail rope clip smoothly, through designing suitable cell type walking wheel, has guaranteed that self-propelled fortune rope dolly can pass through handrail rope clip smoothly.
The rope conveying trolley 4 is driven by a servo motor, can automatically drive on a steel wire rope to walk without manually dragging, and is automatically conveyed with a driving battery from the upper part to get electricity from the inside of the driving battery.
The rope conveying vehicle 4 further comprises a rope conveying frame, a steel wire rope is connected to the rope conveying frame through a pulley, the tail portion of the steel wire rope is a line concentration row 43, a winch is arranged on the maintenance vehicle 1, the line concentration row 43 is connected with a traction rope of a winch 11 on the maintenance vehicle 1, and the rope collection and rope release are achieved through the winding and releasing of the winch 11 so as to drag the maintenance vehicle 1.
In some alternative embodiments, each roller 41 is provided with a braking device 42, each braking device comprising: a brake pad 421 matching the grab rail 3; the brake device further comprises a brake pressing frame 422, wherein the brake pressing frame 422 comprises a pressing column and a pressing plate, two ends of the pressing column are respectively connected with the brake piece 421 and the pressing plate, and two ends of the pressing plate are provided with screw holes; the handle device also comprises two bolts 423 which pass through the screw holes and are fixed on the seat body 45 at two sides of the accommodating groove, and the braking force of the brake piece 421 on the handrail rope 3 can be adjusted by rotating the corresponding nuts of the bolts.
In this embodiment, the grab rail 3 is engaged with the inner groove and the brake pad 421, and the brake pad 421 is formed in a semicircular arc shape and is matched with the grab rail 3. The bolt 423 can be rotated to adjust the pressing force of the brake piece 421 on the grab rail 3 through the brake pressing frame 422, so that the whole rope conveying vehicle 4 is braked.
In some alternative embodiments, the rope trolley 4 is connected with the hauling rope 10 through a line concentration row 43, the line concentration row 43 is further connected with a lapping device 44 through a rope, and the lapping device 44 is an L-shaped electromagnetic suction claw and is used for lapping and fixing on the rope clamp 21 of the main rope 2.
In the present embodiment, the bonding device 44 is an electromagnetic chuck, and a permanent magnetic chuck is installed inside the electromagnetic chuck, and the electromagnetic chuck is L-shaped. When the rope conveying vehicle 4 reaches a preset fixed point, the servo motor stops running, the groove-shaped walking wheel is locked on the handrail steel wire rope through the walking wheel cut-off device, the electromagnetic suction claw is placed, the electromagnetic suction disc is started to work through the handle, the anchoring effect is enhanced, the walking anchoring force along the main cable direction is provided, and a certain safety effect is achieved. In this example, the line collector 43 is connected with the rope conveying vehicle 4 through the steel wire rope, the ropes are respectively connected with the lapping device 44 and connected with the winch 11 through the traction rope 10, and after the rope conveying vehicle 4 is braked, the lapping device 44 is adsorbed on the rope clip to jointly provide anchoring force for the maintenance vehicle 1, so that the winch 11 is safer and more stable when the traction rope 10 is reeled.
Referring to fig. 1 to 3 again, the invention also provides a self-traction type main cable maintenance construction method, which comprises the following steps:
s1: starting the rope conveying vehicle 4 to run on the handrail rope 3, dragging the traction rope 10 to a set position and then braking;
s2: starting the winch 11 to wind the traction rope 10 to drive the maintenance vehicle 1 to move on the main cable 2 and the handrail rope 3, and braking to an overhaul position to overhaul;
s3: after the overhaul of the overhaul positions is completed, the brake of the rope conveying vehicle 4 is released, and the rope conveying vehicle 4 and the overhaul vehicle 1 are repeatedly moved until the overhaul of all the overhaul positions is completed.
In some alternative embodiments, when the maintenance vehicle 1 moves on the main cable 2, causing the main cable 2 to be damaged, the bearing platform 13 is jacked by using a jacking device arranged above the pulley 151; when the maintenance vehicle 1 moves to the cable clamp 21 of the main cable 2, the jacking device arranged above the pulley 151 is used for jacking the bearing platform 13, and then the winch 11 is used for retracting the traction rope 10 to drive the maintenance vehicle 1 to cross the cable clamp 21.
In conclusion, the rope conveying vehicle 4 is arranged on the handrail rope 3 to drag the traction rope 10 in advance, and then the maintenance vehicle 1 winds the traction rope 10, so that the traction rope 10 drives the maintenance vehicle 1 to move on the main rope 2 and the handrail rope 3. In this way, the maintenance vehicle 1 can reduce the driving system, and the main cable 2 and the handrail rope 3 share the weight of the maintenance vehicle 1 by arranging the maintenance vehicle 1 on the main cable 2 and the handrail rope 3, so that the damage to the main cable can be reduced, and the device can easily stride over the position of the cable clamp 21. The jacking device is arranged above each pulley 151, and when the maintenance vehicle crosses over an obstacle, the lifting device can be lifted to increase the supporting force of the grab rope 3 on the maintenance vehicle 1, so that the maintenance vehicle 1 can conveniently cross over the cable clamp 21.
Before reaching the position of the cable clamp 21, when the running gear 14 is found to damage the outer painted surface of the main cable 2, the jacking device is started to support the bearing platform 13, so that the handrail rope 3 bears more dead weight of the maintenance vehicle 1, thereby reducing damage to the main cable 2. When crossing over the barrier, the jacking device can be lifted to increase the supporting force of the grab rail 3 to the maintenance vehicle 1, so that the maintenance vehicle 1 can conveniently cross over the cable clamp 21.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a self-propelled main push-towing rope overhauls device which characterized in that includes:
the maintenance vehicle (1) is movably arranged on the main cable (2) and the handrail rope (3), and a winch (11) provided with a traction rope (10) is arranged on the maintenance vehicle (1);
and the rope conveying vehicle (4) is connected with the traction rope (10), the rope conveying vehicle (4) can run in a self-driven mode and is used for being arranged on the handrail rope (3) and braking the handrail rope (3), and the traction rope (10) can be pulled out of the winch (11) when the rope conveying vehicle (4) runs.
2. A self-propelled main line service apparatus as claimed in claim 1, wherein said service vehicle (1) comprises:
a main body (12);
at least two groups of walking mechanisms (14) which are arranged at intervals, are arranged below the main body (12) and are used for being arranged on the main cable (2);
a bearing platform (13) arranged on the main body (12), wherein the winch (11) is arranged on the bearing platform (13);
and the two groups of sliding devices (15) are respectively arranged below two sides of the bearing platform (13), and the sliding devices (15) are used for being arranged on the handrail rope (3).
3. A self-propelled main line service unit as defined in claim 2, wherein each travelling mechanism (14) comprises:
the rotating shaft of the triangular frame body (141) is rotatably arranged below the main body (12);
and the three wheels (142) are respectively and rotatably arranged at three corners of the triangular frame body (141).
4. A self-drawing main cable maintenance device according to claim 3, wherein a mounting seat of the rotating shaft is arranged below the main body (12), a spring connecting piece (143) is arranged in the mounting seat, and the rotating shaft is mounted in the mounting seat through the spring connecting piece (143).
5. A self-pulling main rope maintenance device as claimed in claim 2, wherein each set of said sliding means (15) comprises at least two pulleys (151) spaced apart from each other for being mounted on said rope (3), each of said pulleys (151) being provided with a brake, and a jacking means being provided above each of said pulleys (151) for jacking up said platform (13).
6. A self-propelled main line service apparatus as claimed in claim 1, wherein said line trolley (4) comprises four drive mechanisms, two by two, for each of said drive mechanisms disposed on said traction lines (10), each of said drive mechanisms comprising:
the seat body (45) is arranged below the main body of the rope conveying vehicle (4), and an accommodating groove is formed in the seat body (45);
gyro wheel (41), it is located through the pivot in the holding tank, gyro wheel (41) are the cell type walking wheel, just the cell type walking wheel includes notch cuttype smooth transition's inside groove and kerve, the width of kerve is greater than the width of inside groove.
7. A self-propelled main line service apparatus as claimed in claim 6, wherein each said roller (41) is provided with a brake (42), each said brake comprising:
a brake pad (421) matching the grab rail (3);
the brake pressing frame (422) comprises a pressing column and a pressing plate, two ends of the pressing column are respectively connected with the brake piece (421) and the pressing plate, and two ends of the pressing plate are provided with screw holes;
and the two bolts (423) penetrate through the screw holes and are fixed on the base bodies (45) at two sides of the accommodating groove, and the braking force of the brake block (421) on the handrail rope (3) can be adjusted by rotating nuts corresponding to the bolts (423).
8. A self-pulling main line inspection device as claimed in claim 1, wherein the rope carriage (4) is connected to the pulling rope (10) by a line collector (43), the line collector (43) is further connected to a lapping device (44) by a rope, and the lapping device (44) is an L-shaped electromagnetic claw for lapping and fixing on the clamp (21) of the main line (2).
9. A maintenance construction method using the self-traction type main cable maintenance device according to claim 1, comprising the steps of:
starting the rope conveying vehicle (4), enabling the rope conveying vehicle to run on the handrail rope (3), dragging the traction rope (10) to a set position, and braking;
the winch (11) is started to wind the traction rope (10) to drive the maintenance vehicle (1) to move on the main cable (2) and the handrail rope (3) and reach the maintenance position to be braked so as to be maintained;
after the overhaul of the overhaul positions is completed, the brake of the rope conveying vehicle (4) is released, and the rope conveying vehicle (4) and the overhaul vehicle (1) are repeatedly moved until the overhaul of all the overhaul positions is completed.
10. The self-traction type main cable overhaul construction method according to claim 9,
when the maintenance vehicle (1) moves on the main cable (2) to cause the pressure loss of the main cable (2), a jacking device arranged above a pulley (151) is adopted to jack a bearing platform (13);
when the maintenance vehicle (1) moves to the cable clamp (21) of the main cable (2), the jacking device arranged above the pulley (151) is used for jacking the bearing platform (13), and then the winch (11) is used for collecting the traction rope (10) to drive the maintenance vehicle (1) to cross the cable clamp (21).
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| CN113026553A (en) * | 2021-03-15 | 2021-06-25 | 李世春 | Suspension bridge main cable mobile video acquisition system based on electromagnetic attraction |
| CN118029286A (en) * | 2024-04-11 | 2024-05-14 | 贵州桥梁建设集团有限责任公司 | Manipulator for suspension bridge construction |
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| CN112227196B (en) | 2022-04-08 |
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