Passive self-walking pipeline inner wall spray-coating car and application method thereof

Abstract

The invention discloses a passive self-walking pipeline inner wall spray-coating car and an application method thereof. The spray-coating car comprises a hydraulic motor, a first chassis and a second chassis, wherein the first chassis and the second chassis are arranged at the two sides of the hydraulic motor; an energy accumulator and an unloading machine are arranged on the first chassis and are connected to the hydraulic motor; a rotary disc is arranged inside the hydraulic motor; a spray-coating pipe is arranged at the sidewall of the hydraulic motor; a second wheel group and a third wheel group are arranged at the bottom of the second chassis; a driving shaft is arranged between the second wheel group and the third wheel group; a first bevel gear is arranged at one end of the driving shaft and is meshed with a second bevel gear of the second wheel group; a belt wheel is arranged at the other end of the driving shaft and is meshed with one end of a belt; the other end of the belt is connected with the hydraulic motor; a high-pressure paint can be input to the hydraulic motor by virtue of the energy accumulator; the high-pressure paint flows through the rotary disc inside the hydraulic motor and is sprayed out via the spray-coating pipe so as to realize spray-coating of a pipeline; meanwhile, torque is generated to drive the hydraulic motor to rotate in order to drive the spray-coating car to automatically walk inside the pipeline; therefore, uniform spray coating can be realized, no electric power is needed for driving, and the spray-coating car is safe and labor-saving.

Description

technical field [0001] The invention relates to the technical field of pipeline protection, in particular to a self-propelled walking pipeline inner wall spraying vehicle and a use method thereof. Background technique [0002] In modern industry and construction, pipe is a widely used building material. In order to adapt the pipeline to different fluid qualities, a variety of special coatings are usually sprayed on the inner wall of the pipeline, so that accidents such as leakage and cracking will not occur when the pipeline flows through high-temperature or highly corrosive liquids. [0003] Spraying paint on the inner wall of various pipelines mainly depends on the inner wall spraying machine of the pipeline. At present, there are two main types of spraying machines on the inner wall of the pipeline in China. One is the spraying machine that uses electricity as energy, and the other is the spraying machine that is driven by manpower and powered by a hydraulic pump. Machin...

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Problems solved by technology

[0003] Spraying paint on the inner wall of various pipelines mainly depends on the inner wall spraying machine of the pipeline. At present, there are two main types of spraying machines on the inner wall of the pipeline in China. One is the spraying machine that uses electricity as energy, and the other is the spraying machine that is driven by manpower and powered by a hydraulic pump. machine, both of these spraying machines have irreparable defects

The spraying machine that relies on electricity to drive forward and spray, because it works in a relatively humid environment for a long time, it is easy to cause the circuit of the spraying machine itself to age and leak electricity, which may cause the circuit to fail during the spraying process of the inner wall of the pipeline. conditions and explosion hazards

However, for a spraying machine that sprays paint with a hydraulic spray gun, its wheels are easy to scrape off the paint that has just been sprayed on the inner wall of the pipeline, and because it is sprayed by hand, it cannot ensure that the paint is sprayed evenly, and even some paint on the inner wall of the pipeline will be overdone. Too many, insufficient paint on the inner wall of some pipelines, resulting in adverse effects such as partial corrosion or insufficient heat dissipation

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