Fluid-driven self-adaption pipeline crawler

Abstract

The invention discloses a fluid-driven self-adaption pipeline crawler comprising a reducing adapting mechanism, a driving travelling mechanism, a driven travelling mechanism, an umbrella-shaped water stopping wing mechanism and a flow divider valve structure. The fluid-driven self-adaption pipeline crawler is characterized in that the fluid drive is used as the main driving form while the driving wheel drive supplements, so that the moving speed is uniform. The reducing mechanism can effectively adjust and adapt automatically according to the change of the diameter of a pipe, and can change the opening degree of an umbrella-shaped water stopping wing by a transmitting mechanism. An impeller is arranged on an inlet of a flow guide pipe, the impeller rotates when a fluid flows through, and the power is transmitted to a driving wheel by a principal shaft. The pipeline crawler is driven by fluid without additional energy source, the resistance caused by drawing a cable is avoided, the on-line work requirement of ultra-long distance can be satisfied, the situation with larger pipe diameter change can be adapted, the moving speed of the device is stable due to double drives of fluid pressure difference and driving wheel; in addition, the pipeline crawler further has the following advantages of high adaption to the inner wall condition of the pipeline, simple structure, high efficiency, convenience in manufacturing, low cost, and on the like.

Description

technical field [0001] The invention relates to the field of fluid-driven small and medium-sized pipeline crawling machinery. It is a new type of pipeline crawling device that mainly uses fluid drive and supplemented by drive wheel drive. operation, and can work in ultra-long-distance pipelines. Background technique [0002] Existing pipeline crawlers have to overcome the resistance of the pipe wall and foreign objects, the resistance of dragging cables, and the gravity of the robot in the ascending pipeline. If it relies on traditional batteries or cables to provide energy, its walking distance will be greatly limited, making The design and manufacture of the robot walking mechanism are relatively complicated. The fluid-driven crawler relies entirely on the thrust generated by the fluid pressure difference to walk, it is difficult to adapt to the change of the pipe diameter, and the uneven friction caused by foreign objects or roughness on the pipe wall makes the walking ...

AI Technical Summary

Problems solved by technology

[0002] Existing pipeline crawlers have to overcome the resistance of the pipe wall and foreign objects, the resistance of dragging cables and the gravity of the robot in the ascending pipeline, etc. If it relies on traditional batteries or cables to provide energy, its walking distance will be greatly limited, making The design and manufacture of the robot walking mechanism are relatively complicated

The fluid-driven crawler relies entirely on the thrust generated by the fluid pressure difference to walk, it is difficult to adapt to the change of the pipe diameter, and the uneven friction caused by foreign objects or roughness on the pipe wall makes the walking speed unstable, and it is difficult to complete the pipe inspection smoothly and accurately Waiting for tasks

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