Rigidity-flexibility transition busbar

Abstract

The invention provides a rigidity-flexibility transition busbar and belongs to the technical field of an electrified railway and urban rail transit overhead contact line. The invention solves the problems of high transition hardness and cost of an existing rigidity-flexibility transition busbar. The rigidity-flexibility transition busbar comprises a busbar body; both ends of the busbar body respectively are a rigid connection end and a flexible connection end; the lower part of the busbar body is provided with a wire clamping jaw; a rigidity-flexibility transition part for enabling the rigidity of the busbar body to be gradually reduced is arranged between the rigid connection end and the flexible connection end; the upper surface of the rigidity-flexibility transition part is a continuous transition inclined plane; the busbar body is provided with a plurality of connection through holes running through the busbar body along the length direction; locking bolts are respectively arranged in the connection through holes; each locking bolt is sleeved with a positioning sleeve; and both end faces of each positioning sleeve are respectively pressed against the inner lateral surface of the busbar body. The rigidity-flexibility transition busbar adopts the continuous transition inclined plane to carry out transition and hard spots in the rigidity-flexibility transition busbar are eliminated.

Description

technical field [0001] The invention belongs to the technical field of overhead catenary for electrified railways and urban rail transit, and relates to a busbar, in particular to a rigid-flexible transitional busbar. Background technique [0002] The overhead catenary of electrified railway and urban rail transit generally adopts rigid suspension in the tunnel, and adopts flexible suspension on the ground or on the viaduct. The rigid-flexible transition refers to the transition between the two catenary modes of rigid suspension and flexible suspension. [0003] Existing rigid-flexible transition devices, for example, a bus bar rigid-flexible transition device disclosed in Chinese patent [Application No. 200620078307.4; Authorized Notice No. CN2900226Y], the top surface of the right part of the bus bar body is made with concave holes at regular intervals. Groove, the depth of the groove gradually deepens towards a single direction, through holes are formed at equal interval...

AI Technical Summary

Problems solved by technology

However, if figure 1 As shown, the existing rigid-flexible transition device for busbars gradually increases the depth by opening multiple grooves, and the stiffness change between the two grooves is discontinuous, so there is still a hard point at the junction of the two grooves, but Weaken and break down a hard point into several hard points

Moreover, in the process of processing, it is necessary to cut off the material on the bus bar multiple times by wire cutting to form multiple grooves, which is inconvenient to process and high in production cost

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