Centrifugal force drive based drawing device for equipment in pipeline

Abstract

The invention relates to a centrifugal force drive based drawing device for equipment in a pipeline, which comprises a bracket, a centrifugal force generating mechanism and a motion locking mechanism, wherein the bracket is sleeved in a pipeline; the centrifugal force generating mechanism comprises a drive motor and more than one set of eccentric block rotating assembly; the motion locking mechanism comprises an adjusting motor and more than four groups of connecting rod assemblies which are fixed on a stand along the circumferential direction of the pipeline; both ends of each screw rod in the connecting rod assemblies are respectively sleeved on a fixed rocker seat and a screw rod fixed seat; a floating rocker seat is sleeved on the screw rod by thread fit; one end of a fixed rocker is articulated on the fixed rocker seat, and the other end of the fixed rocker is connected with one end of a floating rocker by a connecting rod; the other end of the floating rocker is articulated on the floating rocker seat; a wedge block is fixed on the connecting rod; when the screw rods in all the connecting rod assemblies rotate towards the same direction, the motion directions of the floating rocker seats in the adjacent connecting rod assemblies are opposite. The invention has the advantages of simple and compact structure, low cost, stable and reliable work, wide application range, and the like.

Description

technical field [0001] The invention mainly relates to the design field of traction devices, in particular to a device for pulling various in-pipe equipment to move in a pipeline with a certain diameter range. Background technique [0002] With the development of economy and society, it is more and more important to use special instruments to detect, repair and measure various underground pipelines. At present, the methods commonly used at home and abroad to drive various equipment in the pipeline are to pass the rope in the pipeline in advance, pull the rope to pull the device in the pipeline to move inside the pipeline, or use various wheeled and legged small robots. The device in the pipe is driven by friction to move inside the pipe to complete various tasks such as detection and measurement in the pipe. When the rope is used to directly pull the device in the pipe, if the pipe is too long or there are too many bends, the friction between the rope and the inner wall of ...

AI Technical Summary

Problems solved by technology

When the rope is used to directly pull the device in the pipe, if the pipe is too long or there are too many bends, the friction between the rope and the inner wall of the pipe will increase to an unacceptable level; , due to the limitation of the inner diameter of the pipe, the frictional traction between the wheel or the mechanical leg and the inner wall of the pipe is very limited. When impurities such as water and mud remain in the pipe, it is more likely to cause the traction device to fail to pull the equipment in the pipe

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