Connection device, rotor and installation method of semi-open impeller and main shaft of centrifugal compressor
A technology for centrifugal compressors and connecting devices, which is applied to the components of pumping devices for elastic fluids, mechanical equipment, non-variable-capacity pumps, etc. It can improve the assembly process, shorten the assembly and disassembly time, and reduce the maintenance cost.
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[0027] like Figure 1 ~ Figure 4 The shown connection device between the semi-open impeller and the main shaft of the centrifugal compressor includes: the end face tooth I10 arranged on the end face of the hub of the semi-open impeller 1 without blades, the end face tooth II20 arranged at one end of the main shaft 2, the connecting stud 3 and The lock nut 4; the end tooth I10 and the end tooth II20 are matched and meshed; the semi-open impeller 1 has a central hole, and the diameter of the central hole is greater than or equal to the diameter of the connecting stud 3; one end of the main shaft 2 with the end tooth II20 is provided with The first threaded hole 21, and the first threaded hole 21 is arranged along the central axis of the main shaft 2; the two ends of the connecting stud 3 have a first screw part 30 and a second screw part 31 respectively; the connecting stud 3 passes through the central hole, the first The screw part 30 is matched and screwed with the first threa...
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