CS261906B1 - Device for fault control on hollow rotary bodies - Google Patents

Abstract

The task is to create a device to check for defects in hollow rotating bodies by which control can be performed from the external i inside. For this purpose there is a device consists of two halves and a carrier carriage boom with platform for storage instruments and other control aids. Along one side of the half-towers is on the columns a beam on which it is slidable suspension truck with clamping plate suspended control devices and aids. The suspension truck is connected to the push rod by a push rod trolley bracket.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a device for checking defects of hollow rotary bodies, both from the outside and inside simultaneously, in particular of thick-walled rotary bodies for nuclear power.

A defect inspection device for hollow rotary bodies is known which consists of positioners with self-drives on which a controlled hollow rotary body is mounted. Opposite the positioners there is a rail on which the bogie travels with a boom, at the end of which there is a platform for checking the operator. During inspection, the boom and operator enter the hollow body and the hollow body rotates on the positioners. Another known device has a rail chassis provided with an endoscope, which is light on its own. the front end is equipped with a light source and optical prisms and at its rear end eyepiece _with possibly a camera.

The disadvantage of these devices is that they allow the inspection of defects of hollow rotary bodies only from the inside, which is imperfect and thus insufficient for operational reasons. Another disadvantage is that they require considerable physical strain on the inspector.

These disadvantages of the prior art are eliminated by the defect inspection device of the hollow rotary bodies according to the invention, consisting of positioners and a boom with a platform, which consists in that along one side of the positioners there are supporting columns of the beam on which the suspension carriage is mounted. clamping plate of access control aids. The suspension carriage is connected by a push rod to the support carriage bracket.

261 906

The advantage of the device according to the invention is that it allows various types of inspections and operations to be carried out on the inner and outer surfaces of hollow rotary bodies, allows the use of inspection devices of considerable weight and further increases labor productivity.

The device according to the invention is shown by way of example in the accompanying drawings, in which Fig. 1 shows a plan view of the device, Fig. 2 shows a side view of the device, Fig. 3 shows a cross section of a boom support carriage, and Fig. 4 shows a cross section of a suspension carriage.

The device according to the invention consists of a base frame 1 on which a driven positioner 2 with a drive 2 ^{and a} free positioner 4 are mounted. The rollers 2 of both positioners 2 and 4 are adjustable according to the outer diameter of the hollow rotary body 2. , the supporting carriage 6 of the boom 10 with the drive 2 / ^per ίθ ^ οζ end of the platform 11 · the roller 8 has a prismatic Traversing wheels 12 which moves between the guide rails 13 and the boom 10 is pivotally attached Ea pins 14 with locking means 12 · Further The support carriage 8 of the boom 10 is provided with a bracket 16, connected by a push rod 17 to the suspension carriage 18, which travels by means of prismatic rollers 19 on rails 20 of the support 21 mounted on the supporting columns 22. At the rear of the device there is an adjustable suction neck 24 for sucking off harmful volatile substances.

During the inspection, the hollow rotary body 6 is loaded with a lifting device onto the rollers 2 of the driven positioner 2 and the free positioner 4, the driven positioner 2 and the free positioner 2 being fixed on the base frame 1 in the longitudinal axis of the hollow rotary body 6. The rollers 2 are also adjusted so that the axis of the hollow body 6 is horizontal and in plan view coincides with the axis of the device. Then the driven seat 2 rotates the selected one. At the speed of the hollow rotary body 2 ^and in the case of the application of volatile substances, a suction branch 24 is pushed onto the front surface of the hollow rotary body 2.

261 906 ee attaches the necessary monitoring instruments and aids including the operator's chair and the carrier carriage 8 is driven at the selected speed by the jib 10 in the machine axis direction into the interior of the hollow rotary body 6. Combination of rotary movement of the hollow body 6 and axial longitudinal movement 10, it is possible to transport the operator and the necessary control instruments and aids above any point of the inner surface of the hollow rotary. To inspect the outer surface of the hollow rotary body 6, the trolley 18 is connected with a push rod 17 to the bracket 16 of the trolley 8, and the necessary control devices and aids are fastened. on the clamping plate and the operator sits on the suspension trolley 18. The control device can also be operated from the control panel $ 2. In the event that the trolley 8 and the trolley 18 are uncoupled, the push rod 17 is deposited with one end on the stand 26.

Claims (1)

Device for defect inspection of hollow rotary bodies, consisting of positioners and further a boom carrying carriage which is provided with a platform at its end, characterized in that support columns (22) of the beam (22) are provided along one side of the positioners (2) and (4). 21) on which is mounted a sliding carriage (18) with a clamping plate (2.3) of control devices and aids, wherein the sliding carriage (18) is connected to the bracket (16) of the carrier carriage (8) by a push rod (17).