Bending tool and disassembling method of rotor check ring

Abstract

The invention provides a bending tool and a disassembling method of a rotor check ring. Tension consistent with the deformation direction of a bent workpiece can be applied. In the bending tool, a sliding seat is in sliding fit with a support; a drag hook seat is connected with the sliding seat in a rotatable mode; a drag hook comprises a rod part in sliding fit with the draw hook seat and a hookused for hooking a bent workpiece; the length direction of the rod part is perpendicular to the bending rotation center line of the bent workpiece, the sliding direction, relative to the drag hook seat, of the rod part is in the length direction of the rod part, and the sliding direction, relative to the support, of the sliding seat intersects with the length direction of the rod part and is perpendicular to the bending rotation center line; and the rotating axis, relative to the sliding seat, of the drag hook seat is parallel to the bending rotation center line. The bending tool is adopted for the disassembling method of the rotor check ring. The disassembling method includes the steps that bendable stop pieces are hooked by the hook; and the drag hook is operated to pull the bendable stop pieces to conduct bending, and the position, relative to the support, of the sliding seat, the position, relative to the pull hook seat, of the rod part and the angle of the drag hook are adjusted in the bending process so that the drag hook can be perpendicular to the bendable stop pieces.

Description

technical field [0001] The invention relates to the technical field of engine assembly, in particular to a bending tool and a method for disassembling a rotor retaining ring. Background technique [0002] A new type of engine compressor rotor 100 such as figure 1 and 2 As shown, it includes a rotor disk 1, a plurality of blades 2 and a multi-segment retaining ring 3, and the plurality of blades 2 are respectively connected with a plurality of grooves 11 in the circumferential direction of the rotor disk 1 through a dovetail or fir tree tenon 21, so as to limit the 2 degrees of freedom of movement in the circumferential direction, the multi-segment retaining ring 3 is installed in the drum slot 12 of the rotor disk 1 and the tenon slot 22 of the blade 2 to limit the freedom of movement of the blade 2 in the axial direction. [0003] Multi-stage retaining ring 3 such as Figure 1 to Figure 5 As shown, it includes a plurality of normal baffles 31 and at least one special baf...

AI Technical Summary

Problems solved by technology

[0005] When decomposing the retaining ring 3, it is necessary to bend the bendable retainer 35 to form the avoidance groove 33. Since the bendable retainer 35 is an eversion structure, the conventional disassembly process is to use a screwdriver to pry the bendable retainer 35 and the blade In the gap of 2, the edge plate of the blade needs to be used as the fulcrum of the screwdriver when prying. Since the edge plate of the blade is thin, it cannot withstand excessive pressure. Using this method will easily cause damage to the blade 2.

In addition, the bendable baffle 35 can be stuck between the tenons 21 of any two adjacent blades 2 in the unbent state, that is, the installation position of the special baffle 32 is not unique, and when disassembled, the bendable baffle 35 needs to be bent at nearly 90°, and the bending angle is relatively large. Conventional bending tools are difficult to meet the requirements

Images