A special tool for disassembly and assembly of wedge rings

Abstract

The invention discloses a special fixture for disassembling and assembling a wedge-shaped ring, and the special fixture comprises a support structure, a stretching pin component and a trapezoidal transmission screw; in use, after cylinders are fixed by the support structure, the stretching pin bottom is extended into the installing hole of the wedge-shaped ring I, the head (1) of the trapezoidal transmission screw stands up to the groove on the stretching pin when the trapezoidal transmission screw is tightened by a torque wrench, the trapezoidal transmission screw adopts a lever principle to together move the stretching pin component and the wedge-shaped ring I around the pin axis, at the same time, the axial direction of the stretching pin component is subject to frictional resistance of the wedge-shaped ring I and the spring in the stretching pin component is elongated, so that the spring in the stretching pin component executes circumference movement around the cylinders along with the wedge-shaped ring I to assemble the wedge-shaped ring I; the mechanical structure is saved in force and low and even in pressure functioned on the wedge-shaped ring I and the cylinders, thereby ensuring personnel and product security.

Description

technical field [0001] The invention relates to a special tooling, in particular to a special tooling for disassembling and assembling wedge rings. Background technique [0002] In the process of cylinder product design, it is necessary to choose the connection method between cylinders, and screw connection is more commonly used. Screw connection and wedge ring connection have the following disadvantages: [0003] 1. Occupies a large radial space of the cylinder; [0004] 2. The structural strength of the connection is low; [0005] 3. The airtightness of the cylinder is difficult to guarantee. [0006] The wedge ring connection structure can overcome the above shortcomings, but its structure is complex and requires strict disassembly methods. [0007] The typical structure of wedge ring connection includes three parts: cylinder I, cylinder II and a pair of wedge rings. When assembling, it is necessary to sleeve the cylinder I to the cylinder II to complete the circumfe...

AI Technical Summary

Problems solved by technology

[0003] 1. Occupies a large radial space of the cylinder;

[0004] 2. The structural strength of the connection is low;

[0005] 3. It is difficult to guarantee the airtightness of the cylinder

[0009] Furthermore, after the wedge ring is disassembled, it is difficult to ensure that it is installed in place, and it is also impossible to judge whether it is installed in place, that is, the operability and testability of this process are poor

In the early stage, the method of shaking the cabin was used for inspection, and the safety was difficult to guarantee

[0010] Furthermore, the disassembly process of the wedge ring still needs two people to complete the reverse knocking method at the same time, which will cause great damage to the cylindrical product and the wedge ring. The product scrap rate is high, and the disassembly of the wedge ring is difficult.

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