Torque wrench and steel box beam high-strength bolt tightening applying technology using same

Abstract

The invention relates to a torque wrench. The torque wrench comprises a handle, and the front end of the handle is fixedly connected with a connection head; the connection head is provided with a connection hole, a sleeve is installed on the inner wall of the connection hole, and an installation plate is fixedly connected to the inner wall of the sleeve; a plurality of sets of installation holes are uniformly formed in the installation plate at intervals, and the inner walls of the installation holes are fixedly connected with installation pipes; the inner walls of the installation pipes are fixedly connected with baffles, stop rods are slidably connected into the inner walls of the two ends of the installation pipes, and abutting springs are installed in the two ends of the installation pipes; by fixedly connecting the installation plates to the inner walls of the sleeves, the installation pipes are fixedly connected into the installation holes, by slidably connecting the stop rods into the installation pipes, during using, the sleeves are arranged on a bolt head in a sleeving mode, the bolt head drives the stop rods to compress the abutting springs, the side walls of the stop rods which are not compressed abut against the side wall of the bolt head, thus, an operator can tighten bolts different in specification conveniently, and the quantity of wrenches needing to be carriedby an operator is decreased.

Description

technical field [0001] The invention relates to the construction of a steel box girder, in particular to a torque wrench and a high-strength bolt screwing process for a steel box girder using the torque wrench. Background technique [0002] A wrench is a commonly used installation and removal tool. Hand tools for turning bolts, screws, nuts, and other open or socketed fasteners whose threads hold bolts or nuts tightly by the principle of leverage. The wrench is usually formed with a clamping handle at one or both ends of the handle to apply an external force to the handle to twist the bolt or nut to hold the opening or sleeve of the bolt or nut. When in use, an external force is applied to the shank in the direction of thread rotation, so that the bolt or nut can be twisted. [0003] Wrenches are usually made of carbon structural steel or alloy structural steel. [0004] During the construction of the steel box girder, the operator needs to use a wrench to tighten the bol...

AI Technical Summary

Problems solved by technology

[0004] During the construction of the steel box girder, the operator needs to use a wrench to tighten the bolts. During the use of the existing wrench, the operator needs to choose a wrench of different specifications according to the size of the bolt. Generally, the operator needs to carry a wrench during the construction process. Comparing wrench tools with multiple specifications, this method increases the operator's carrying capacity

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