Spiral pipeline inner wall walking device

A walking device and screw-type technology, applied in the direction of pipe elements, special pipes, pipes/pipe joints/pipes, etc., can solve the problems of unstable movement of the robot, large radial space, and high spring occupation, and achieve strong driving force, The effect of smooth movement and not easy to twist

Active Publication Date: 2017-09-12
HRG INT INST FOR RES & INNOVATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]Most of the driving wheel structures in the current spiral pipe inner wall walking robot adopt a single-layer wheel structure with radial springs or a double-layer wheel with radial springs structure, the driving wheel of these two structures is directly connected with the cylindrical spring, and the driving wheel is pressed against the pipe wall by the spring force. This kind of structure is simple, but it is easy to twist during the rotation process, making the robot's movement unstable; and this kind of The spring used in the structure needs to occupy a large radial space, which is not suitable for small pipe diameters

Method used

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  • Spiral pipeline inner wall walking device
  • Spiral pipeline inner wall walking device
  • Spiral pipeline inner wall walking device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] see figure 2, the roller bracket 5 is installed on the rotating shaft 12 through the fixing part 22, and the roller bracket 5 slides up and down along the fixing part 22; one end of the fixing part 22 is fixedly connected with the rotating shaft 12, and the other end of the fixing part 22 passes through the roller bracket 5 It is connected with the fixing member stopper 223; the spring 221 is sleeved on the outside of the fixing member 22, and the spring 221 is a compression spring, and the elastic force of the spring 221 keeps the roller bracket 5 away from the rotating shaft, so that the roller bracket 5 is pressed along the pipe wall of the pipeline 100 Walking; the fixed block 223 is used to prevent the roller bracket 5 from popping out of the fixed member 22 under the action of the spring 221;

[0037] The two roller brackets 5 symmetrically distributed along the rotating shaft are also connected by a guide post 9, and the two ends of the guide post 9 respectively...

Embodiment 2

[0040] see image 3 , the fixed part 22 includes a telescopic part 224 and a telescopic part sleeve 225, the interior of the telescopic part sleeve 225 is hollow, the telescopic part 224 is inserted into the telescopic part sleeve 225, and the shaft between the telescopic part 224 and the telescopic part sleeve 225 Sliding and fixed fit in the circumferential direction; a spring is arranged in the sleeve 225 of the telescopic element, and the spring end is fixed on the bottom end of the inner wall of the sleeve 225 of the telescopic element, and the other end of the spring is fixedly connected with the telescopic element 224; the spring drives the telescopic The telescoping piece 224 is far away from the telescoping piece casing 225;

Embodiment 3

[0042] see Figure 4 , the two ends of the fixed part 22 are respectively fixedly connected with two roller brackets 5 symmetrically distributed along the rotating shaft 12, the fixed part 22 includes a telescopic part 224 and a telescopic part sleeve 225, and the inside of the telescopic part sleeve 225 is hollow, stretchable Part 224 is inserted into the telescopic part sleeve 225, and the telescopic part 224 and the telescopic part sleeve 225 are axially slid and circumferentially fixedly matched; the telescopic part sleeve 225 is provided with a spring, and the spring end is fixed on the telescopic part sleeve The bottom end of the inner side wall of 225, the other end of spring is fixedly connected with telescopic part 224; Spring drives telescopic part 224 and telescopic part sleeve pipe 225 away;

[0043] see Image 6 and Figure 7 , in the schematic diagram of the present invention in the pipeline, the driving wheel 6 forms a fixed angle with the axis of the pipeline...

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PUM

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Abstract

The invention discloses a spiral pipeline inner wall walking device. The pipeline inner wall walking device comprises a gear motor device, a guide wheel mechanism and a driving wheel mechanism; the guide wheel mechanism sleeves the outer side of the gear motor device; the gear motor device drives the driving wheel mechanism to rotate; the driving wheel mechanism comprises at least two roller supports which are uniformly distributed along the circumferential direction of a rotary shaft; the roller supports are arranged in a manner of being capable of mutually approaching or departing radially along the rotary shaft; the driving wheel mechanism further comprises springs; and elastic force of the springs can drive the roller supports to mutually depart. According to the spiral pipeline inner wall walking device, the springs press fixed plates to drive driving wheels walk along the inner wall of a pipe, so that movement of the driving wheels is more stable; the driving wheels do not twist easily; and the spiral pipeline inner wall walking device is applicable to various different small pipe diameters.

Description

technical field [0001] The invention relates to the field of pipeline inner wall walking, in particular to a spiral type pipeline inner wall walking device. Background technique [0002] Pipelines are the main means of transportation for natural gas, oil, and urban water supply systems. Maintenance, testing, machining and other operations are required in the pipeline. Compared with the manual operation method, the running mechanism on the inner wall of the pipeline has the advantages of safety, convenience and high efficiency. Among the many walking mechanisms on the inner wall of the pipeline, the screw drive has the advantages of simple structure and easy miniaturization. [0003] Most of the driving wheel structures in the current spiral pipe inner wall walking robot adopt a single-layer wheel structure with radial springs or a double-layer wheel structure with radial springs. The driving wheels of these two structures are directly connected to the cylindrical springs. ...

Claims

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Application Information

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IPC IPC(8): F16L55/32F16L101/30
CPCF16L55/32F16L2101/30
Inventor 顾仓翟荣安刘明王纯配刘晶晶谷森王毓王飞于振中李文兴
Owner HRG INT INST FOR RES & INNOVATION
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