Heavy-type inverted studded thread bolt mounting tooling and use method of same

Abstract

A heavy-type inverted studded thread bolt mounting tooling and a use method of same. The tooling includes: a sling frame, which is provided with a main beam, a sub-beam at one side of the main beam, ajoint which is arranged on the middle of the other side of the main beam and is extended, and a clamping plate arranged on the outer end of the joint. Sling holes, which are arranged in an isoscelestriangle shape, are formed in two ends of the main beam and the sub-beam. The top ends of the sling holes arranged in the isosceles triangle shape are located on the outer end of the sub-beam and arelocated at the extension line of the central line of the joint. A clamping thread hole, which is matched with the structure of a to-be-mounted inverted studded thread bolt, is formed on the outer endof the clamping plate. When the sling frame is under an idle or loaded status, the gravity of one side of the is larger than that of one side of the joint with the sling frame as the central line, sothat the sling gravity is located between the sling holes, which are arranged in an isosceles triangle shape, between the main beam and the sub-beam. The structure effectively overcomes position interference of a sling hoisting rope and corresponding equipment parts, and ensures that the inverted studded thread bolt can be maintained to be balanced, stable and safe during the slinging and moving processes.

Description

technical field [0001] The invention relates to a bolt installation tool, in particular to an installation tool for heavy-duty upside-down threaded bolts and a method for using the installation tool, which is particularly suitable for installation of upside-down threaded bolts at subplanes in steam turbine cylinders. Background technique [0002] The threaded bolt is a fastening joint that screw a threaded head of the screw rod into the threaded hole (usually a blind hole structure) of the equipment components to be fastened and connected, similar to "planting trees". [0003] According to its bottom-up wire installation on equipment parts, the wire bolts form an inverted wire structure - that is, inverted wire bolts, which are especially common in the combined connection of large equipment parts, such as in steam turbine cylinders In the faceted combination connection structure, the connection bolts used for the butt combination on large equipment parts are usually large in...

AI Technical Summary

Problems solved by technology

However, for the upside-down screw bolts, if they are moved and installed and aligned by lifting, the problem of interference between the lifting rope and the cylinder block will be involved. At present, there is no effective and suitable solution; Manually pushing and moving the way to move and install and align, there are technical problems of high labor intensity, low efficiency, and poor safety, and there is also an installation foundation with the steam turbine in the process of pushing and moving (see figure 1 Label 5) in the problem of interference, which will increase security risks

[0006] In summary, based on the particularity of heavy-duty upside-down wire bolts, the existing conventional bolt installation equipment and methods are difficult to meet the installation requirements of heavy-duty upside-down wire bolts, which directly increases the Technical difficulty of installation on equipment components

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