Bolt connection pair for power transmission tower

Abstract

The invention provides a bolt connection pair for a power transmission tower, which is used for fixing at least two connecting pieces. The bolt connection pair comprises a bent bolt (2) and a lock nut(1), wherein the lock nut has a locking contact surface; the locking contact surface is constructed from a plurality of geometric shapes; the lock nut is of different heights in the circumferential direction; the bent bolt (2) is fixed to the lock nut (1) after passing through the connecting piece; and the locking contact surface of the lock nut (1) faces the connecting piece. The bolt connectionpair is simple in structure, does not need finish machining, is lowered greatly in the cost, can play a good role in preventing loosening, avoids damage to a corrosion-resistant galvanized layer on the surface of the connecting piece, and does not need any special gasket. The bolt connection pair provided by the invention is suitable for the field construction of the power transmission tower, andis easy for construction.

Description

technical field [0001] The invention relates to the technical field of power transmission lines, in particular to a bolt connection pair used for power transmission towers. Background technique [0002] Bolt connection is one of the most commonly used and simplest and most effective connection forms in transmission towers, which has the advantages of simple structure, convenient disassembly and low cost. The connection stiffness, damping performance and reliability of bolted connections are crucial to the safety of the entire structure. When the bolts of the transmission tower are tightened, torque will be generated in the bolts, and the release of the torque will reduce the pre-tightening force of the bolts; at the same time, under the conditions of dynamic load (wind vibration or galloping) or large temperature difference, the bolt connection is easy to loosen or even fall off. Bolt connection failure is one of the important causes of collapse accidents. [0003] The bo...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies in the above-mentioned prior art that the structure is complex, requires finishing, the cost is high, and the anti-corrosion galvanized layer on the surface of the connecting piece is easily damaged, the present invention provides a bolt connection pair for power transmission towers, which is used to connect at least two The connecting piece is fixed, which includes a bending bolt (2) and a locknut (1); the locknut (1) has a loosening contact surface, and the locking contact surface is composed of a plurality of geometric shapes, and the The anti-loosening nut (1) has different heights in the circumferential direction; the bending bolt (2) is fixed with the anti-loosening nut (1) after passing through the connector, and the anti-loosening nut (1) The anti-loosening contact surface is facing the connecting piece, the structure is simple, no finishing process is required, the cost is greatly reduced, and the anti-corrosion galvanized layer on the surface of the connecting piece is avoided

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