Seamless contact rail system and connecting method of contact rail system

Abstract

The invention discloses a seamless contact rail system and a connecting method of the contact rail system. The seamless contact rail system comprises multiple anchoring sections arranged in the line direction; each anchoring section comprises at least two current-carrying parts with current-carrying demands; and the two adjacent current-carrying parts are seamlessly connected with each other. According to the technical scheme of the embodiment of the invention, the use of a mechanical joint is avoided, and the operation workload is reduced. The integrity and smoothness of a contact rail are also improved, the dynamic characteristic between a collector shoe and the contact rail is improved, and the system and the method are beneficial for improving the current supplying quality and enhancing the adaptability to higher speed target value.

Description

technical field [0001] The invention relates to a contact rail system of rail transit, in particular to a seamless contact rail system and a connecting method of the contact rail system. Background technique [0002] Taking the connection of two adjacent contact rails as an example, along the line extension direction, two adjacent contact rails a are connected by mechanical joints, such as figure 1 As shown, the mechanical joint includes a fishplate b and a fastener c, and the fastener is generally a bolt. Using this kind of mechanical joint as a connecting piece will inevitably form a gap d at the joint, and the splicing surface will not be aligned due to errors in parts manufacturing and construction, resulting in vehicle current collectors (also known as collector shoes) The friction surface between the contact rail and the contact rail is not smooth, which affects the flow quality of the vehicle. [0003] Even if during the construction process, the joints are treated ...

AI Technical Summary

Problems solved by technology

Using this kind of mechanical joint as a connecting piece will inevitably form a gap d at the joint, and the splicing surface will not be aligned due to errors in parts manufacturing and construction, resulting in vehicle current collectors (also known as collector shoes) The friction surface between the contact rail and the contact rail is not smooth, which affects the flow quality of the vehicle

[0003] Even if during the construction process, the joints are treated by replacing parts and grinding the joints, the smoothness requirements can be met temporarily, but usually the rail temperature changes in a large range, and in the operating environment of long-term frequent vibrations, the fasteners at the joints are extremely difficult. The fastening force is prone to decrease, resulting in loosening of the joint, and the unevenness of the flow transfer surface again.

Moreover, due to the large number of intermediate joint fasteners, coupled with the long line and short maintenance time, the maintenance of fasteners has caused greater work pressure to the operation

Therefore, the problem of uneven flow transfer surface is ubiquitous in rail engineering such as subways. If it is not paid attention to, it will cause "staggered platform" phenomenon on the contact rail flow transfer surface in severe cases. Generates a huge impact, causing equipment damage and threatening driving safety

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