Cable-stayed bridge is new as modern bridge, has worldwide obtained using widely.Particularly in construction during the span bridge, cable-stayed bridge has become the bridge pattern for first-selection.As the cable long term exposure of one of cable-stayed bridge three big primary structure members (bridge tower, bridge floor and bridge rope) in air, through the wind and weather Exposure to Sunlight, the pe sheath on cable surface will produce sclerosis and cracking phenomena in various degree, bring serious problems such as rust staining, fracture of wire can for the steel tendon in the sheath, simultaneously, because RANDOM WIND is shaken, rain shakes, make the steel wire in the cable produce little friction, then cause serious fracture of wire problem, all can bury serious hidden danger to cable-stayed bridge.Because cable-stayed bridge is the new bridge type that just rises nearest decades, the maintenance measure that matches with the main bearing member cable of cable-stayed bridge is still far from perfect.In the prior art, outer robot and electric wire detection machine people are existing to be studied to managing, and the general tractive force of these robots is little, translational speed is slow, only adapt to rigid conduit,, absolute altitude higher and flexible bigger cable big for this gradient of cable-stayed bridge, its climbing ability is obviously not enough.According to international online retrieval, yet there are no the report of cable-maintaining robot.
The purpose of this utility model is to develop a kind of cable-maintaining robot climbing device that is applicable to any gradient cable rope climbing, to finish the maintenance work to cable, to reach purposes such as reducing labor intensity, improve the quality, reduce cost.
For realizing such purpose, the electrical cable-maintaining robot climbing device that the utility model provides, body adopts the cylindrical frame structure of being made by square tube, and this not only helps reducing the influence that upper-level winds shakes, but also has improved the integral rigidity of body.In the framework along uniform three travelling cars of cable circumferencial direction, provide enough clamping forces respectively three dollies to be pressed on the cable by clamp mechanism, three motors at the uniform velocity climb along rope by three dollies of transmission mechanism driving respectively on the dolly, translational speed can be controlled and be adjusted by ground control cabinet, and climbing device is worked on cable can not damage the original coating and the pe sheath on cable surface.
Below by way of embodiments and drawings the technical solution of the utility model is described in further detail.
Fig. 1 is an overall structure schematic diagram of the present utility model.
As shown in the figure, climbing device partly is made up of travelling car, clamp mechanism, cylindrical frame structure and the relative rotating mechanism of internal and external frame etc.The cylindrical frame of climbing device (I) adopts bearing type of attachment between the internal and external frame, make it to rotate flexibly mutually, in the inner frame 9 along uniform three travelling cars 12 of cable circumferencial direction, sprocket wheel 3, front-wheel 4, sprocket wheel 10, trailing wheel 11 after the chain transmission drives again before motor 1 in every dolly drives by worm type of reduction gearing 2 and chain transmission.Clamp mechanism on the dolly is connected on the inner frame 9, forms by adjustable plate, clamping body 6, adjusting nut 7 etc., and at two guide posts 8 of the both sides of spring 5 configuration.Three dollies hug on cable 13 and at the uniform velocity climb, and are monitored by ground control cabinet.Can also fasten steel wire rope 14 on the robot climbing device, its effect is the deadweight of carrying cable and pulls robot under unexpected situation.
Fig. 2 is the right TV structure schematic diagram of the utility model.
As shown in the figure, inner frame 9 has adopted cylindrical structural, in the inner frame 9 along uniform three travelling cars 12 of cable 13 circumferencial directions, clamp mechanism is provided with adjustable plate 15 and adjusting nut 7, thickness (adapting to diameter of wire cord φ 90~φ 200) according to cable diameters, selecting suitable rough segmentation shelves hole to be fixed in pin on the support plate 16 on the adjustable plate 15, adjusting nut 7 is finely tuned then, makes travelling car 12 and cable 13 keep certain pressure.
Fig. 3 is the enlarged drawing of the relative rotating mechanism of internal and external frame for I place among Fig. 1.
As seen, cylinder inner frame 9 is connected with outside framework 18 through bearing 17 among the figure, and internal and external frame can rotate each other flexibly.
Fig. 4 is climbing speed control principle figure of the present utility model.
As shown in the figure, three variable-frequency motors 1 of frequency converter 19 controls are regulated motor speed by job requirements.
The utility model compact conformation, reasonable, three travelling cars of circumference uniform distribution produce the frictional force that is enough to overcome deadweight and load under the clamp mechanism effect, under the driving of three ponderomotive forces, can at the uniform velocity climb with higher speed along the cable of any gradient.The robot climbing device adopts the column type frame form, can reduce the influence that upper-level winds shakes.Internal and external frame adopts relative rotating mechanism, rotates flexibly each other, can keep the robot stable working state.The utility model can be used for the maintaining robot of large-scale cable-stayed bridge cable, mixes applying mechanism, can carry out upkeep operations such as cable application, cleaning and detection, can also be used for the maintenance of other cylindrical bars such as electric pole etc.
In an embodiment of the present utility model, the power of engineering prototype is 1.1KW, and deadweight is 150 kilograms, but 280 kilograms of load-carryings, and the climbing speed scope is between 1 meter to 10 meters of per minutes.This model machine is obtained good effect in engineering test, have application value.