Step-length-fixed telescopic automatic walking mechanism

Abstract

The invention discloses a step-length-fixed telescopic automatic walking mechanism, belongs to the technical field of automatic walking and particularly relates to a step-length-fixed telescopic automatic walking technology used for detecting the inner wall of a pipeline. The step-length-fixed telescopic automatic walking mechanism is composed of a front shell and a rear shell, wherein the front shell and the rear shell are respectively provided with an elastic supporting structure and a locking mechanism. The front shell and the rear shell are connected together through a threaded rod motor, a threaded sleeve and a guide pillar. In the process of advancing, the locking mechanism of the front shell is unlocked, the locking mechanism of the rear shell is locked, the threaded rod motor rotates to drive the front shell to advance partially by a regulated distance, then the locking mechanism of the front shell is locked, the locking mechanism of the rear shell is unlocked, the threaded rod motor rotates to drive the rear shell to advance partially, and in this way a walking cycle is finished. The maintaining performance and interchangeability are good, automatic walking can be performed well, the walking distance is high in uniformity each time, the automation degree is high, positioning precision is high, and reliability is high. Meanwhile, time, efforts and labor are saved, and it is guaranteed that the surface quality of the inner wall of the photoelectric instrument detection pipeline is accurate and comprehensive.

Description

technical field [0001] The invention belongs to the technical field of automatic walking, and relates to the automatic walking technology, in particular to the fixed-step telescopic automatic walking technology for pipeline inner wall detection. Background technique [0002] Pipeline inner wall inspection is an important content in the process of pipeline maintenance and maintenance, which is related to the safety of pipeline use. Due to the small diameter and long body of the inner wall of the pipeline, it is difficult to observe the inner wall of the pipeline during maintenance, and there is a lack of corresponding detection means for defects on the inner wall. At present, the inspection equipment used in pipeline production, maintenance and inspection is a special optical borescope. In the inspection pipeline, it is necessary to use a push rod to push the optical borescope into the pipeline for observation. As the detection depth increases, many push rods need to be conne...

AI Technical Summary

Problems solved by technology

Due to the small diameter and long body of the inner wall of the pipeline, it is difficult to observe the inner wall of the pipeline during maintenance, and there is a lack of corresponding detection means for defects on the inner wall

At present, the inspection equipment used in pipeline production, maintenance and inspection is a special optical borescope. In the inspection pipeline, it is necessary to use a push rod to push the optical borescope into the pipeline for observation. As the detection depth increases, many push rods need to be connected. It is time-consuming and laborious to use, and requires multiple people to work together to complete, and the positioning accuracy is low and the observation is not comprehensive, which cannot well meet the needs of pipeline inner wall inspection.

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