Crossover turnouts for tram and metro vehicle commissioning workshops

Abstract

The invention discloses a double crossover switch suitable for a tramcar and subway vehicle debugging workshop, which comprises a first main rail, a second main rail, a first switch rail and a secondswitch rail, wherein the first main rail and the second main rail are parallel, the first switch rail and the second switch rail form a rhombic cross at an intersection, the first switch rail and thesecond switch rail are respectively intersected with the first main rail and the second main rail to form four single-opening switches, and each single-opening switch comprises a switch device, a frogand a guard rail; a distance L between the two main rails is 8,000 mm, the switch rails comprise arc-shaped guide curved rails and straight rails, the main rails and the switch rails meet each otherthrough the guide curved rails, and a radius R of the guide curved rails is equal to 25,000 mm; the switch device comprises a straight basic rail, a curved basic rail, a first point rail matched withthe straight basic rail and a second point rail matched with the curved basic rail; a frog angle of the single-opening switch equals to 22o19' 16''; and the guard rail comprises a first guard rail anda second guard rail. The double crossover switch suitable for the tramcar and subway vehicle debugging workshop has the advantage of small occupied area.

Description

technical field [0001] The invention relates to a crossover, in particular to a crossover turnout suitable for a tram and subway vehicle commissioning workshop. Background technique [0002] Urban rail transit is a key field of transportation construction in my country. Urban trams have the characteristics of reliable operation, comfort, energy saving, land saving, and environmental protection. In order to adapt to the city's topography and dense buildings, trams are required to have special designs such as flexible operation and small turning radius, and the track structure is required to be stable, safe and reliable. The turnout number (N) represents the main size of each part of the turnout, and is usually expressed by the cotangent value of the frog angle (α). The smaller the frog angle α, the larger the N value, and the larger the radius of the guide curve. The larger the number, the longer the turnout, the higher the cost, and the larger the area; the current general-...

AI Technical Summary

Problems solved by technology

The turnout number (N) represents the main size of each part of the turnout, and is usually expressed by the cotangent value of the frog angle (α). The smaller the frog angle α, the larger the N value, and the larger the radius of the guide curve. The larger the number, the longer the turnout, the higher the cost, and the larger the area; the current general-purpose rail transit turnout numbers range from No. 3 to No. 9, which are generally suitable for high-speed trains, but the speed of urban rail transit is relatively low. Small, usually less than 10 kilometers per hour lateral speed, even the smallest No. 3 turnout still has the disadvantage of occupying too much area, which is a huge waste of urban area

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