SU1738583A1 - Device for dismantling removable members - Google Patents

Abstract

The invention relates to mechanical engineering, more specifically to devices for remote disassembly of removable elements. installed in hard-to-reach places, for example, under water, in the area of high temperatures and radioactive radiation. The aim of the invention is to perform work on the dismantling of removable elements in hard to reach places. The device is a housing with a console, equipped at the end with a nozzle with a conical section for gripping the head of the element to be removed. A boom with a cantilever is installed above the console, fitted with a sleeve with a pin, at the end of which there is a tubular element with longitudinal slots in the form of petals for abutting the nozzle cone. 4 з.п, ф-л, 8 Il.

Description

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The invention relates to mechanical engineering, specifically to devices for remote disassembling of removable elements located in hard-to-reach places, for example, in a nuclear reactor vessel.

The aim of the invention is the remote execution of work on the dismantling of removable elements located in remote locations of the nuclear reactor.

FIG. 1 shows the device, a general view; in fig. 2 — node I in FIG. one; in fig. 3 - the same, after the device grasps the removable element; in fig. 4 — node II in FIG. one; in fig. 5 shows section A-A in FIG. 2; in fig. 6 is a section BB in FIG. 3; in fig. 7 is a section bb of FIG. 3; in fig. 8 is a view of FIG. one.

On the housing 1 of the device there is a console 2 on which the attachment 3 is fixed. In the latter, the insert 4 is mounted, which is fastened with a nut 5. At the end of the insert 4, the tip 6 is fastened, which has

an opening 7, a part of which is made with a cone 8. In the upper part of the housing 1, a head 9 is fixed with handles 10 and an earring 11. The earring 11 is fastened sideways. In the housing 1 with axial displacement there is installed a ha 12 with a bracket 13 on which the sleeve 14 is attached. The second end of the rod 12 is supplied with a nut 15 with handles 16. The bracket 13 is removed from the housing 1 through the slot 17. The pin 18 is placed with the end in the hole sleeve 14, fastened with a nut 19, passes freely through the holes in the nozzle 3, at its second end it attaches a tubular element 20 with longitudinal slits 21 and petals 22.

Before locking the head of the removable device, the petals 22 abut against the cone 8 (Fig. 2). In the nozzle 3, there is a tooth 23 on the inner surface of the hole. On the insert 4, there are slots 24 and 25, in which the size VJ

CO 00 SL 00

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Dogs 26 and springs 27 forming a ratchet mechanism are provided. In the upper part of the device, a carrier 28 is installed, which is fixed on pin 29 fixed on site 30. The platform is mounted on the reactor vessel 31. On the device case 1 there is also a bracket 32 with a counterweight 33, a cable 34 with a cable 35 is mounted on the rod. install an additional weight 36 with a hole 37, which is held when installed over a cable 38; For the direction of pulling, a liner 39 is installed in the housing 1,

The device can be removed bayonet devices 40, a container equipped with a head 41, etc.

The bayonet device 40 consists of a rod 42 with protrusions 43, washers 44, nuts 45 and a head 46. The head 46 can be welded to the rod. A removable device is placed in pocket 47 welded to the reactor vessel. At the end of the pocket 47 there are sockets 48 for bayonet devices. A sleeve 49 is fixed in the socket with grooves 50 through which the protrusions 43 pass. On the sleeve 49 there are protrusions 51 which serve as a stop for the protrusions 43 when tightening the threaded connection of the bayonet device. The removable element 52 is installed in the pocket 47 and has a head 41.

The washer 44 is made in the form of a cylinder, at one end of which there is a ring, the edges of the ring during assembly are bent on the face of the nut, and at the other end of the cylinder of the washer there is an eccentric element, which is placed in the counterblock on the flange of the removable element 52.

The device works as follows.

In order to remove the bayonet devices 40, the device is aimed at the head 46 so that the hex of the handpiece 6 is put on the nut 45 and fixes its upper part with the help of the carrier 28.

Next, press the device from top to bottom and bend the edges of the ring washer 44 from the nut (Fig. 3). Thereafter, the arms 16 are lowered by the arms 12, as a result of which the petals 22 of the tubular element 20, which abut against the cone, are bent and enter the gap between the head 46 and the cone 8. By turning the device by the handles 10, they unscrew the nut, while the nut must turn around and the rod 42 so that the protrusions 43 are positioned against the grooves 50. After that, the device is lifted by the earring 11 and the removable element is transported to the place where it is released from the device tip. For this, the handles 16 raise m to 12.

The petals 22 come out from under the cone of the head 46 and the removable element falls out of the tip 6.

The presence of a ratchet mechanism allows the device to be turned several times to remove the nut.

The unloading of the removable element 52 is performed by the head 41. In this case, there is no need to unscrew the nut, since

it is not on the head 41. The rest of the action is similar to that described. The mass of the removable elements 40 and 52 is different and when transporting the element 52 of a large mass, you can install additional weight 36, which during installation is held by the cable 38. after passing the cable 35 through the hole 37.

The proposed device provides remote execution of work on the removal of removable elements from hard-to-reach places of equipment,

Claims (5)

1. A device for dismounting removable elements containing a locking mechanism removable elements, characterized in that, in order to ensure remote execution of work on dismantling removable elements located in hard-to-reach places of the nuclear reactor, the gripping mechanism is made in the form of a body on which a console is mounted and a carrier mounted above it mounted in the body with the possibility of axial movement ti s bracket mounted on the console nozzle with liner and tip, the inner surface of which is made conical, sleeve mounted on the bracket over the nozzle coaxially with the latter, and the pin, one end of which is fixed in the sleeve and the other is provided with a tubular element with longitudinal slots d capture of removable elements and installed with the ability to interact with the conical surface of the nozzle tip. 2. Device pop. 1, characterized in that the nozzle is connected to the liner through the ratchet. 3. The device according to claim 1, characterized in that the carrier is provided with a removable pin for installation on the reactor vessel. 4. The device according to claim 1, characterized in that it is provided with a bracket with counterweight 5. The device according to claim 1, characterized in that the counterweight is provided with a cable and additional weight with a hole for the cable. thirty eight 2 m Jj FIG. B sixteen FIG. five FIG. 6 Schi Ch 50 HydrG Fig.8