JPH057239B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an apparatus for inspecting members located at high places such as instrumentation on the ceiling of a nuclear power plant containment vessel.

BACKGROUND ART Various instruments are installed on the ceiling inside the containment vessel of a nuclear power plant, and during periodic inspections, workers approach and inspect these instruments.

Problems to be solved by the invention It was thought that an inspection robot would be necessary because it took a long time for workers to approach the place and there were safety issues. There is no similar example.

Measures to solve the problem: A vertical take-off type disc-shaped flying device is used for easy inspection at high places, and the flying device is equipped with ring-shaped blades for buoyancy amplification and spin force cancellation. establish.

Function: The main propeller, sub-propeller, and ring wing combine to offset the spin force of the main propeller, maintain stable flight and maintain a stable position in the air, and use instrumentation units (TV cameras, lighting equipment, etc.) to move parts at high places. Check.

Embodiment In FIGS. 1 and 2, a main propeller 1 is directly connected to a drive device (engine or high-output small electric motor) 3, and a ring 2 having a V-shaped groove is attached to the outer periphery. The ring 2 engages with a plurality of abacus ball-shaped rollers 7 and is preloaded to enable rotation transmission. The roller 7 is rotatably disposed on the annular support base 6 via a bearing 8 and a support pin 9, and the outer side of the roller 7 engages with a ring 10 having a V-shaped groove, so that a preload is applied to enable rotation transmission. is applied and the roller 7 holds the ring 10. A sub-propeller 11 is provided outside the ring 10 in the opposite direction to the main propeller 1, and a ring wing 12 having a teardrop-shaped cross section is further provided on the outer periphery of the propeller 11.

A casing support 4-1 is attached to the drive device 3, and a cylindrical casing 4-3 is held by a spherical casing 4-2 for aerodynamic countermeasures. Four rectifying vertical blades 5a to 5c are provided on the outside of the casing 4-3.
are arranged, and steering blades 13a to 13c are swingably attached to the lower ends of the rectifying vertical blades 5a to 5c. Further, a support stand 6 is attached to the top of the vertical wings 5a to 5c, and also serves to support the ring wing 12. Below the casing 4-3 is a steering blade 13a.
Four sets of drive geared motors 14 (13c to 13c) are installed internally, and an attitude control unit 15 is also installed internally. Furthermore, an inspection instrumentation unit (TV camera, lighting device, etc.) 16 is installed at the lower end of the casing 4-3, lowering the center of gravity of the entire device.

Furthermore, cables 17 are provided at the lower end of the instrumentation unit 16 and are connected to an operation panel on the ground (not shown).

When the drive device 3 is activated and the main propeller 1 is rotated, this rotation is transmitted from the ring 2 to the roller 7, and the ring 10, as well as the auxiliary propeller 11 and ring wing 12, are rotated in the opposite direction. Cancels spin power. Propulsive force of main propeller 1 and sub propeller 11 and ring wing 12
The aircraft rises due to the lift force generated by the aircraft, and the direction of travel and turning are performed by operating the steering blades 13 in various combinations. Further, by controlling the rotational speed of the main propeller 1, the hollow standstill and the descending operation are performed. By the above operation, the inspection target area is approached and inspected using the instrumentation unit 16.

Effects of the invention The spin force of the main propeller is canceled by the ring wing and the auxiliary propeller, and by installing the instrumentation unit at the lower end, it is possible to fly and stand still in a stable attitude, making inspection easy. It becomes easier.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view of an embodiment of the flying device for high-altitude inspection of the present invention, the upper half of FIG. 2 is a plan view of FIG. 1, and the lower half of FIG. 2 shows a plan view of FIG. 1 with the wings removed; FIG. DESCRIPTION OF SYMBOLS 1... Main propeller, 2... Main propeller side ring, 3... Drive device, 5a-d... Vertical rectifying blades, 7... Roller, 10... Sub-propeller side ring, 11... Sub-propeller, 12 ...Ring wing, 13a-d...Steering wing, 16...Inspection instrumentation unit.

Claims (1)

[Claims] 1 a drive device, a rectifying vertical blade provided around the drive device, a main propeller attached to the upper end of the rotation shaft of the drive device and equipped with a ring around the circumference;
A plurality of rollers are pivotally supported on the upper part of the straightening vertical blade and are in contact with the outside of the ring of the main propeller, and a sub-propeller and a ring wing are provided in this order on the outside, and are supported by the roller and in contact with the outside of the roller. The main propeller is rotated by the driving device, and the main propeller is rotated by the driving device. The auxiliary propeller and ring wing rotate in the opposite direction to the main propeller through the rollers and the main propeller, canceling out the spin force of the main propeller, allowing stable flight, and allowing the inspection instrumentation unit to inspect high places. A flying device for high-altitude inspections.