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Variable-diameter mechanism suitable for pipeline robot

A pipeline robot and coupling technology, applied in the direction of special pipes, pipe components, mechanical equipment, etc., can solve the problems of high manufacturing cost, small variable diameter range, complex mechanism, etc., and achieve simple structure, large variable diameter range, and mechanism good sealing effect

Pending Publication Date: 2019-03-08
NANCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are also some pipeline robots whose diameter-changing mechanisms adopt worm gear, elevator, screw-nut pairing, etc., but the above-mentioned traditional methods also have problems such as complicated mechanism, high manufacturing cost, small diameter-changing range, and poor structural sealing. Seriously affected the use of pipeline robots in engineering projects

Method used

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  • Variable-diameter mechanism suitable for pipeline robot
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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] Such as figure 1 with figure 2 As shown, the present invention provides a novel diameter reducing mechanism suitable for pipeline robots.

[0022] by figure 1 Explain the variable diameter mechanism. The left side of the figure is the situation of the large diameter pipe, and the right side is the situation of the small diameter pipe.

[0023] The present invention comprises a main shaft 1, a cam push rod 2, a driving wheel frame 3, a coupling 4, a fixed seat 6, a motor 5, a traveling wheel 7 and a cam 8. Cam push rod 2 connects cam 8 and driving wheel frame 3, and road wheel 7 is installed on the end of driving wheel frame 3. The rotation of the cam 8 drives the extension and contraction of the driving wheel frame 3 through the cam push rod 2 to achieve the purpose of reducing the diameter.

[0024] Described cam 8 is fixed on the main sha...

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Abstract

The invention provides a variable-diameter mechanism suitable for a pipeline robot. The mechanism is characterized by comprising a main shaft, a cam push rod, a driving wheel frame, a coupling, a fixing base, a motor, a travelling wheel and a cam, wherein the cam push rod is connected with the cam and the driving wheel frame, the travelling wheel is installed at the tail end of the driving wheel frame, and the rotation of the cam drives the driving wheel frame to stretch and retract through the cam push rod. The variable-diameter mechanism has the advantages that the occupied space is small, the size of the pipeline robot can be miniaturized, the variable-diameter range of the mechanism is large, the adjusting speed is high, the manufacture of the mechanism is simple, the cost is low, thesealing performance is good, the corrosion of external to the mechanism is reduced, and the service life is long.

Description

technical field [0001] The invention relates to the field of pipeline robots, in particular to a diameter-changing mechanism suitable for pipeline robots. Background technique [0002] Pipeline is a material transport carrier widely used in oil and gas transportation, urban water supply and drainage projects, and large-scale central air-conditioning ventilation. However, the pipeline is easily affected by various external components during use, and it is prone to a series of pipeline damage and pipeline aging problems, such as pipeline damage, leakage, or the adhesion and deposition of substances transported inside the pipeline on the inner wall of the pipeline so that the internal diameter of the pipeline is reduced or even Blockage, etc., if the pipeline cannot be repaired and cleaned regularly, it may cause major safety incidents, resulting in casualties and property losses. [0003] The emergence and research and development of pipeline robots provide a new method for p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/32F16L55/40F16L101/12F16L101/30
CPCF16L55/32F16L55/40F16L2101/30F16L2101/12
Inventor 胡兆吉郭晓京田涛王计辉
Owner NANCHANG UNIV
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