Double-headed bolt assembling and disassembling tool

Abstract

Provided is a double-headed bolt assembling and disassembling tool. A first wrench is fixed at the tail end of the tool, a locking rod is sleeved with a nut and fixed in a feather edge outer sleeve through the nut, a second wrench is fixed at the outer end of the side, near the first wrench, of the feather edge outer sleeve, and a pre-tightening nut is arranged in the other side of the feather edge outer sleeve; the head end of the locking rod penetrates through the pre-tightening nut and is fixed in the pre-tightening nut through a straight pin, a spring is arranged in the feather edge outer sleeve, one end of the spring abuts against the nut, the other end of the spring abuts against the pre-tightening nut, a convex edge clamping nut is arranged on the pre-tightening nut, a hole check ring is arranged on the convex edge clamping nut, and the convex edge clamping nut and the hole check ring are arranged in the end of the feather edge outer sleeve. According to the double-headed bolt assembling and disassembling tool, the assembly is convenient and reliable, the structure is simple, the disassembly is flexible, use is easy, the manufacturing cost is low, the labor intensity can be greatly reduced, the tool is suitable for operation in narrow and special space, parts can be replaced quickly, and double-headed bolts with different diameters can be acted.

Description

technical field [0001] The invention relates to the field of auxiliary equipment for installing and dismounting stud bolts, in particular to a stud bolt installing and dismounting tool. Background technique [0002] Metallurgical enterprises and heavy industry units will choose stud bolts as fasteners to connect parts in special areas or narrow parts to achieve a certain period of use. Both have slow speed in installation and disassembly, and are not ideal in terms of shock resistance and buffer performance, but they must be fastened with stud bolts. For example, the wide-faced copper plate and back plate of the crystallizer in the related mining industry are made of more than 100 stud bolts. Sequential connection, when working online, it is subjected to high temperature of molten steel and cooling of circulating water, and the production environment is harsh. Water leakage will occur for a period of time, causing great losses to production. [0003] After inspection and ...

AI Technical Summary

Problems solved by technology

[0002] Metallurgical enterprises and heavy industry units will choose stud bolts as fasteners to connect parts in special areas or narrow parts to achieve a certain period of use. Both have slow speed in installation and disassembly, and are not ideal in terms of shock resistance and buffer performance, but they must be fastened with stud bolts. For example, the wide-faced copper plate and back plate of the crystallizer in the related mining industry are made of more than 100 stud bolts. Sequential connection, when working online, it is subjected to high temperature of molten steel and cooling of circulating water, the production environment is harsh, and water leakage will occur for a period of time, causing great losses to production

[0003] After inspection and analysis, some stud bolts are not fastened to the wide-faced copper plate, that is, the end surface of the bolt and the bottom surface of the threaded hole of the copper plate are not completely fitted and rubbed, and the original fastening force will be lost under the influence of thermal expansion and contraction. Water and impurities continue to erode and bite

Due to the large number of stud bolts and high labor intensity, when installing and removing the stud bolts, it was found that the staff used the control pliers to act on the cylindrical surface to carry out the tightening operation, so that some bolts with tighter threads could not be screwed to the end, so normal production was affected , increased labor intensity

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