A reverse pull rod pressure loading device

Abstract

The invention discloses a reverse pull rod type pressure loading device. The base is in the form of a frame, and a double-layer structure is formed by the frame. The center of the bracket is provided with a large threaded hole for installing a jack. The circumference of the large threaded hole is provided with small holes; After passing through the small hole, the upper end is connected to the floating plate, which is locked and fixed by hexagon head bolts, and the lower end is connected to the top plate, which is locked and fixed by the shoulder hexagon nut; the connecting rod at the bracket end is provided with a compression spring, and one end of the compression spring passes through the cylinder The pin is pressed tightly; the top plate, connecting rod, floating plate and inner hexagonal cylinder head screw constitute a reverse pull rod structure; the disc part is arranged between the gland and the base, and the inner hexagonal cylinder head screw is connected with the stepped screw and the gland, passing through The disc part and the upper layer of the base are connected on the floating plate, wherein the stepped screw is located between the hexagon socket head screw and the gland; the invention has high practicability, and can use a jack to use a reverse pull rod mechanism to draw the pressure from the disc part hole. The plate parts are pressurized, the operation efficiency is high, and the use is convenient.

Description

technical field [0001] The invention relates to the field of assembling and loading devices for disk-shaped hollow rotor parts, in particular to a reverse pull rod type pressure loading device. Background technique [0002] At present, the rotor parts of aviation gas turbines are mostly connected by short-disk structure stopper interference. Generally, cold and hot assembly is used to fit the control and bolts and nuts are used to connect and then pressed. The assembly seam is prone to the phenomenon of gradual detachment of the fitting surface. The subsequent use of bolts and nuts to compress can not strictly ensure the uniformity of the circumferential fit. A press fit device controls the assembly process. Contents of the invention [0003] In order to solve the above-mentioned technical problems and realize the assembly and matching state of the spigot connection structure of the short disc structure, this kind of reverse pull rod type pressure loading device is used f...

AI Technical Summary

Problems solved by technology

[0002] At present, the rotor parts of aviation gas turbines are mostly connected by short-disc structure stopper interference. Generally, cold and hot assembly is used to fit the control, and bolts and nuts are used to connect and then compacted. During the connection process, there are hot and cold temperature changes, so The assembly seam is prone to the phenomenon of gradual separation of the fitting surface. The subsequent use of bolts and nuts to compress can not strictly ensure the uniformity of the circumferential fit. The control of the fit state has become a difficult point in the assembly process. It is necessary to design an effective Press fit device controls the assembly process

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