A self-locking walking wheel

Abstract

The invention discloses a self-locking type running wheel and relates to the technical field of suspension bridge main cable overhauling. The self-locking type running wheel comprises a first pressureresistant steel plate; a buffering mechanism is mounted on the upper surface of the first pressure resistant steel plate; a frame is arranged at the lower part of the first pressure resistant steel plate; a bearing is fixedly embedded in the internal top wall of the frame; the bottom end of the buffering mechanism penetrates through the first pressure resistant steel plate and is fixedly connected with the inner ring of the bearing; a limiting bolt is fixedly connected to the upper surface of the frame; and a bolt limiting groove is formed in the upper surface of the first pressure resistantsteel plate. According to the self-locking type running wheel, as positive and negative screws are arranged at the two ends of a bearing rod of a concave surface wheel, a rotating spanner is arrangedat one end of the bearing rod, limiting steel plates are arranged on the positive and negative screws, the upper ends of the limiting steel plates are fixed by steel plate limiting grooves, and inclined rod limiting grooves are formed in the lower ends of the limiting steel plates, an overhauling vehicle can only run in a designated direction; when the overhauling vehicle moves back, the running wheel can be automatically self-locked; and therefore, personal safeties of operation personnel on the vehicle and the safeties of riding workers under the main cable are greatly guaranteed.

Description

technical field [0001] The invention relates to the technical field of maintenance of main cables of suspension bridges, in particular to a self-locking traveling wheel. Background technique [0002] Suspension bridge is currently one of the main structural forms of super-long-span bridges. Due to its special structural form, compared with other forms of bridges, it can use less materials to complete relatively large spans. In this way, not only the bridge deck can It is wider and has better navigability. However, the suspension bridge also has its inevitable defects: the main cable suspension is its main load-bearing component, but it cannot be replaced during the entire life cycle of the bridge. It is required that during the operation of the bridge, the main cable suspension must be regularly overhauled, which makes the daily maintenance of the main cable suspension generally more than 100 meters, high risk and difficult. [0003] At present, the main cable inspection ve...

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Problems solved by technology

[0002] Suspension bridge is currently one of the main structural forms of super-long-span bridges. Due to its special structural form, compared with other forms of bridges, it can use less materials to complete relatively large spans. In this way, not only the bridge deck can It is wider and has better navigability. However, the suspension bridge also has its inevitable defects: the main cable suspension is its main load-bearing component, but it cannot be replaced during the entire life cycle of the bridge. It is required that during the operation of the bridge, the main cable suspension must be regularly overhauled, which makes the daily maintenance of the main cable suspension generally more than 100 meters, high risk and difficult

[0003] At present, the main cable inspection vehicle is usually used as the operating platform for bridge maintenance personnel during the inspection process, and is used for mobile inspection and (or) maintenance operations. The measures, however, all take into account the self-locking ability of the maintenance vehicle when walking, which makes the maintenance vehicle have the risk of overturning when walking, and the handrail ropes of some bridges are inclined, such as the Jiajiang Bridge in Nanjing, which makes the existing The limit position of the maintenance vehicle cannot be done very well, so it is necessary to design a self-locking walking wheel to meet the above requirements.

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