Variable-diameter washing robot for pipeline

Abstract

The invention discloses a variable-diameter washing robot for a pipeline. The robot comprises a supporting driving mechanism for supporting and driving the whole robot, and a washing mechanism for rotatably washing the inner wall of the pipeline, wherein the supporting driving mechanism and the washing mechanism are rotatably connected. According to the variable-diameter washing robot for the pipeline, a supporting wheel can be telescoped through a compressing spring in case of a foreign matter or pipeline deformation, so that the robot can stably move forwards, and the applicable scope is wide; a supporting wheel mechanism and a driving mechanism synchronously change the diameter to fit the pipelines with different diameter; three driving wheels are synchronously driven to rotate throughone motor, so that the structure is compact, and the operation is stable; the pipeline is washed and dredged through a washing structure, and thus the normal use and the safety of the pipeline are ensured.

Description

technical field [0001] The invention belongs to the field of pipeline cleaning robots, in particular to a pipeline variable diameter cleaning robot. Background technique [0002] The pipeline is an important carrier for long-distance oil and gas transportation. The deposition and corrosion of impurities in the pipeline will cause blockage and damage to the pipeline. If the pipeline is not cleaned in time, the efficiency and safety of pipeline operation will be affected. However, the environment where the pipeline is located is not easy to reach directly or does not allow people to directly enter, so it is very difficult to clean. In addition, due to geographical factors or pipe welding construction or process reasons, there are some curved pipes and pipes with reduced diameters. Some existing pipeline cleaning robots cannot clean pipelines well. For example, the invention patent application with the application publication number CN102671898A discloses a "cleaning device fo...

AI Technical Summary

Problems solved by technology

Some existing pipeline cleaning robots cannot clean pipelines well. For example, the invention patent application with the application publication number CN102671898A discloses a "cleaning device for a pipeline cleaning robot with variable inner diameter", but the device can only clean The length of the brush is scalable, and the diameter of the robot body cannot be changed; and the invention patent application with the authorized publication number CN106140746A discloses a "pipe cleaning robot", which is driven by crawlers, uses too many motors, and has an overly complicated structure. It is difficult to guarantee the consistency of operation

In addition, some existing robot patents generally do not consider the situation that the robot encounters foreign objects in the pipeline or the pipeline is damaged and cannot move forward.

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