Tool for disassembling and assembling bolt for fixing mutual inductor in transformer substation

Abstract

The invention provides a tool for disassembling and assembling a bolt for fixing a mutual inductor in a transformer substation. The tool comprises an L-shaped fixing frame, a vertically-arranged rotating rod is movably mounted in the middle of the upper end of the L-shaped fixing frame, the rotating rod penetrates through the L-shaped fixing frame and is fixedly connected with a first bevel gear, and a transversely-arranged mounting sleeve is rotationally connected to the middle of the left end of the L-shaped fixing frame; and the mounting sleeve penetrates through the L-shaped fixing frame and is fixedly connected with a second bevel gear, the second bevel gear is meshed with the first bevel gear, a connecting rod is detachably mounted at the left end of the mounting sleeve, and the end, away from the mounting sleeve, of the connecting rod is detachably connected with a nut sleeve used for clamping a nut. Compared with the prior art, the tool has the following beneficial effects that the connecting rod is inserted into a kilovolt switch cabinet and is connected with the bolt, at the moment, the L-shaped fixing frame is located outside the kilovolt switch cabinet, the bolt disassembling and assembling operation outside the kilovolt switch cabinet is achieved, operation is convenient, and the working efficiency is improved.

Description

technical field [0001] The invention relates to a tool for disassembling and assembling bolts of transformers in substations, and belongs to the technical field of bolt dismounting tools. Background technique [0002] Sensors are one of the commonly used equipment in transformer substations. Their working principle is similar to that of transformers. They convert the operating voltage and high current of high-voltage equipment and busbars, that is, the load or short-circuit current of equipment and busbars, into measuring instruments and relays according to the specified ratio. Low voltage and low current for electrical protection and control equipment. [0003] The size and space of the kilovolt switchgear is small. When replacing the suspended transformer, etc., because the fastening bolts are installed in reverse, it is necessary for the staff to drill into the cabinet for operation. Due to the narrow space inside the switchgear, the operation The space is very small, an...

AI Technical Summary

Problems solved by technology

For the wrench or electric wrench currently used in the engineering industry, it usually refers to a tool or electric tool for tightening and loosening bolts and nuts. This method has a disadvantage: the electric tool cannot be used in a small space.

At present, the electric wrench commonly used in engineering is limited by its structure. The rotation plane of its parts is generally perpendicular to the plane of the electric tool. When the upper part of the bolt fastener interferes with other components, the power tool cannot effectively tighten or loosen the bolt fastener, resulting in low efficiency in the disassembly and assembly of the bolt fastener

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