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1. WO2020109618 - DISPOSITIF À CHENILLE TÉLÉCOMMANDÉ

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]
CLAIMS

1. A remotely controlled crawler device for use on elongated cylindrical members (ECMs) comprising a pair of housings, each housing including a continuous looped track, part of the track being arranged to run along one side of the housing, means for driving the track, and wherein the track includes a series of shoes and where the outwardly facing side of each shoe includes a generally semi-circular recess of diameter corresponding to that of the ECM, and means for holding the two housings together with the portions of the track running along one side of each housing being engaged on opposite sides of the ECM, whereby driving the circulating tracks causes the crawler to move along the ECM, and means for connecting the crawler to an external control unit remote from the crawler.

2. A remotely controlled crawler device according to Claim 1 wherein the means for driving each continuous looped track is a hydraulic motor.

3. A remotely controlled crawler device according to Claim 1 or 2 wherein each of the two housings includes an independently controllable drive unit connected to the circulating looped track.

4. A remotely controlled crawler device according to Claim 1 wherein one of the housings incorporates a drive motor and means are provided to enable the drive motor to drive the continuous looped track in both housings.

5. A remotely controlled crawler device in accordance with any of Claims 1 to 4 wherein the power to move the crawler along the cable is an electrical or hydraulic supply.

6. A remotely controlled crawler device according to any of Claims 1 to 5 wherein the spacing between the two portions of the crawler is adjustable to vary the degree to which the tracks are urged against opposite sides of the ECM.

7. A remotely controlled crawler device in accordance with any of Claims 1 to 6 wherein one housing is materially heavier than the other whereby to enable the force of gravity to keep the crawler on the ECM with its heavier housing located directly below the lighter housing.

8. A remotely controlled crawler device according to any of Claims 1 to 7 and including on at least one of the housings a quick release coupling to enable a separate device to be affixed to the crawler.

9. A remotely controlled crawler device according to any of Claims 1 to 8 and including one or more scraper units at one or both ends of the housing and positioned to engage on, and by scraping remove deposits from, the external surface of the ECM.

10. A remotely controlled crawler device according to any of Claims 1 to 9 and including sensor devices to enable the detection of when the crawler device approaches one end of an ECM and which is arranged on such detection to cause the direction of movement of the crawler on the ECM to be reversed.

11. A remotely controlled crawler device according to any one of Claims 1 to 10 and including one or more camera units mounted on one or both housing units and enabling the view in the neighbourhood of the crawler to be visually monitored by a technician on the ground.

12. A remotely controlled crawler device according to any one of Claims 1 to 11 where each circulating looped track runs on turnround sprockets at each end, one of which is driven via a drive shaft connected to the drive means, and where one or more outer sprockets are provided between the

ends of the loop to ensure that all portions of the track facing the ECM are pressed against it.

13. A remotely controlled crawler device according to any one of Claims 1 to 12 and including guide rods linking the two housings.

14. A remotely controlled crawler device according to any one of Claims 1 to 13 where the track shoes have rounded comers.