Fastening device with annularly distributed thread pairs

Abstract

The invention relates to a fastening device of an annularly-distributed thread pair, the thread pair comprises a plurality of annularly-distributed first thread pieces and second thread pieces matched with the first thread pieces, and the fastening device comprises a base; the rotating disc is rotatably arranged on the base around a first axis, and the first axis passes through the circle center position of the circumference where the first threaded pieces are located; the tightening head is rotatably arranged on the side, facing the first threaded piece, of the rotating disc around a second axis and is connected with the second threaded piece in a torque transmission mode; the telescopic assembly is telescopically connected between the rotating disc and the tightening head, and the telescopic direction is perpendicular to the disc surface of the rotating disc; the first axis and the second axis are parallel to each other. According to the embodiment, automatic tightening work of the annularly-distributed thread pairs can be achieved, the assembling efficiency and the assembling precision of the thread pairs are improved, and then the overall assembling reliability of an engine is improved.

Description

technical field [0001] The present disclosure relates to the field of aero-engine manufacturing, in particular to a fastening device for annularly distributed thread pairs. Background technique [0002] At present, many scenarios in the assembly process of aero-engines involve the bolt fastening of annular end covers, such as turbine engine end covers, circular pipe sealing end covers, etc. For the bolt fastening of the ring-shaped end cap, the existing assembly schemes mostly manually center the end cap and fasten the bolts distributed in the ring one by one, so there is a problem of repetitive labor, and the patience and care of the operator is very important. Great test. At the same time, the processing efficiency of manual tightening of bolts is low, and the processing accuracy cannot be guaranteed, which may easily cause uneven stress among multiple bolts. Under the influence of mechanical vibration during the long-term operation of the aero-engine, loosening or even ...

AI Technical Summary

Problems solved by technology

For the bolt fastening of the ring-shaped end cover, the existing assembly schemes mostly use manual centering of the end cover and then fasten each bolt in the ring one by one, so there is a problem of repetitive labor, and the patience and care of the operator is very important. great test

At the same time, the processing efficiency of manual tightening of bolts is low, and the processing accuracy cannot be guaranteed, which may easily cause uneven stress among multiple bolts. Under the influence of mechanical vibration during the long-term operation of the aero-engine, loosening or even adverse consequences of shedding

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