SU975236A1 - Apparatus for working hard-to-reach part locations - Google Patents

Description

(54) DEVICE FOR PROCESSING HARD-ACCESSIBLE

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The invention relates to the processing of hard-to-reach parts, in particular, to the technology for repairing blades of a turbo-compressor of a gas turbine engine.

A device for treating hard-to-reach parts is known, containing mTaH-5 gu, pneumatic actuator with a tool head and pipe 1 connected to the pneumatic actuator.

The disadvantage of this device is that it is not possible to repair the blades of a gas engine of a bin engine without disassembling it while monitoring the process.

The aim of the invention is to provide the possibility of repairing the blades of a gas turbine engine without disassembling it.

This goal is achieved by the fact that the pneumatic drive with the tool head is mounted on the rod so that it can be rotated from the mechanism introduced into the device, made in the form of a screw rigidly connected to the pipeline, and a nut fixed to the rod and also a spring associated with it the ends with the pipeline and a pneumatic actuator. At the same time, the device is equipped with DETAILS

Optical tube with ocular rum in the rod.

FIG. 1 shows the device, a general view; in fig. 2 - pneumatic actuator with a tool head in the working position; in fig. 3 an instrumental head and a pneumatic drive made in the form of a pneumatic turbine, a slit; in fig. 4 — instrumental head and pneumatic actuator, made in the form of a pneumatic motor, cut; in fig. 5 shows section A-A in FIG. four.

The device comprises a housing 1 with shtanga 2. On the rod 2 it is pivotally mounted by means of axis 3 a pneumatic actuator with a tool head 4. The pneumatic actuator is made in the form of a pneumatic turbine 5 (Fig. 3) or a pneumatic motor 6 (Fig. 4). In the boss 7 of the housing 1 a screw 8 is placed with a cracker 9 for moving the pipeline 10. The compressed air is supplied to the turbine 5 through channel 11 in the housing 1 through the valve 12, flexible hose 13, pipeline 10, which is in the working position of the pneumatic actuator with the tool head 4 with its cone 14 it contacts with the return cone 15, and the opening 16. The pipeline 10 is embedded in the cracker 9 and centered in the guide slot 17 of the rod 2. The lower part of the pipeline 10 is connected to the pneumatic actuator through an elastic element — a spring 18. In the transport position (phi . 1) between the end of conduit 10 and pneumatic actuator there is a gap sufficient to ensure that when downward movement of the pipeline 10 the spring 18 is deployed with pneumatic tool head 4 to the working position (counterclockwise) until it stops in the rod end 19 February.

A fiber light guide 21 is placed in the groove 20 of the rod to illuminate the area of the cutting tool 22 and the surface to be treated, and an optical tube 23 with an eyepiece 24 to observe the process of stripping the blades.

The air turbine 5 (Fig. 3) consists of a rotor 25 with working blades 26 and trunnions 27 and 28. An axial bore 29 and a bore 30 serve to supply air to the stand-ups 31 in order to unload them. The central hole 32 serves to fasten the tool (cutter, grinding wheel) 22. The rotor 25 is supported by the cover 33 and the nozzle 34 cone 34. The cone 34 has radial holes 36 for supplying compressed air to unload the rotor supports 25.

The pneumatic motor 6 (Fig. 4) consists of rotors 38 and 39 with synchronizing gears 40 and 41 placed in housing 37. On the shaft 42 of the rotor 39, cutting tool 22 is attached. Air is supplied to the pneumatic motor through hole 16.

The operation of the device is as follows.

For stripping the edges of the working blades, the device is brought into the transport position (Fig. 1) and introduced into the treatment zone. The device is then brought into its working position (Fig. 2), for which the screw 8 is turned to extend downward the pipeline 10. As it moves downward, the pipeline 10 through the spring 18 turns the pneumatic actuator with the tool head 4 counterclockwise until it stops at the end 19 of the rod 2 and within the elastic deformation of the spring 18 continues its movement until

contact of the cones 14 and 15. Thus, a rigid fixation of the pipeline with a pneumatic actuator is achieved. Then, observed in the eyepiece p 24, the tool 22 is brought to the defective portion of the edge of the working blade. After that, compressed air is supplied by pressing on valve 12. Air flows through channel II, flexible hose 13 and pipeline 10 to a nozzle device 35 and working blades 26 of a pneumatic turbine 5, spinning the rotor 25, which causes the cutting tool 22 to rotate. To stop stripping and output the devices from the treatment area release the valve 12, as a result of which the air supply is stopped and the screw 8 is turned to move the pipeline 10 upwards. The pipe 10 through the spring 18 turns the pneumatic actuator with the tool head 4 clockwise in the transport position (Fig. 1).

The use of the invention will make it possible to repair the blades of a gas turbine engine without disassembling it while observing the treatment process.

Claims (2)

1. A device for processing hard-to-reach parts, containing a shaft, a pneumatic drive with a tool head and a pneumatic drive connected to a pipe, characterized in that, in order to repair the blades of a gas turbine engine without disassembling, the pneumatic drive with a tool head is mounted on the rod so that it can be rotated from the inserted into the device of the mechanism, made in the form of a screw, rigidly connected with the pipeline, and of the nut fixed to the screw, and also of the spring connected by its ends with the pipeline and pneumatic press Odom. 2. The device according to claim 1, characterized in that it is provided with an optical tube with an ocular located in a rod. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 141720, cl. B 23 B 45/04, 1961. - 533 21 15 Fig.Z