A steam turbine clapboard drawing steel wire alignment device

Abstract

The invention relates to an aligning device for a drawn steel wire of a turbine partition plate. According to the technical scheme, cylinder guide rods (12) are symmetrically arranged at the two ends of an upper fixed cross beam (5), a movable cross beam (6) is movably arranged at the position above the upper fixed cross beam (5) through the cylinder guide rods (12) in a sleeving mode, an adjusting threaded rod (8) is horizontally installed above the movable cross beam (6), adjusting bolts (9) are symmetrically arranged on the outer sides of a threaded rod supporting plate (7), the lower ends of the adjusting bolts (9) are in contact with the upper plane of the upper fixed cross beam (5), a fastening bolt (3) is arranged in the middle of a lower fixed cross beam (2), one end of the steel wire (13) penetrates through the turbine partition plate and is fixed to an aligning device, located on the other side, for the drawn steel wire of the turbine partition plate, the other end of the steel wire (13) is wound around the adjusting threaded rod (8) to be connected with the upper end of a spring force meter (4), and the lower end of the spring force meter (4) is connected with the fastening bolt (3). The aligning device is simple in structure and convenient to manufacture. By the adoption of the aligning device, the steel wire (13) can be rapidly and accurately located in the vertical and horizontal directions, and the pulling stress of the steel wire can be effectively controlled.

Description

technical field [0001] The invention belongs to the technical field of alignment of steam turbine clapboards. In particular, it relates to a straightening device for drawing steel wires of a steam turbine clapboard. Background technique [0002] In steam turbine installation, finding the partition is a very important link. Commonly used alignment methods include laser alignment, false shaft alignment and steel wire alignment. Among them, the laser alignment accuracy is the highest, but the laser alignment is greatly affected by the conditions. When the external interference airflow affects the beam, the beam needs to be readjusted to keep the reference unchanged. False shaft alignment is to use the false shaft made of steel pipe to replace the steam turbine rotor for alignment. Although the false shaft alignment has the characteristics of high measurement accuracy, the production and storage requirements of the false shaft are high, so it is also very important in engineer...

AI Technical Summary

Problems solved by technology

The commonly used method is to align the steel wire. The alignment of the steel wire needs to be adjusted several times. After each adjustment, the steel wire needs to be removed, and then the installation of the next process is carried out. Although the existing steel wire alignment device is simple, However, the positioning in the vertical and horizontal directions is not accurate, and the steel wire needs to be re-aligned when it is reset, which is very inconvenient

In addition, the existing steel wire alignment device does not accurately control the tensile stress of the steel wire, and the vertical arc of the steel wire cannot be effectively adjusted

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