Split type combined frog

Abstract

The invention discloses a split type combined frog which comprises a point rail and a pair of wing rails, the point rail is connected with a pair of frog heel rails, a bridge type base plate is arranged in the area from the theoretical tip end of the point rail to the 50-100 section, the inner side of each wing rail is provided with an embedded block, the point rail, the wing rails and the embedded blocks are connected through bolt pairs, and the point rail and the frog heel rails are connected through bolt pairs, the point rail and the embedded block are made of forged high manganese steel or alloy steel materials, the two ends of the embedded block are hidden in the wing rail to form a tip hiding structure, the point rail comprises a working section and a connecting section which are wedge-shaped, and the side edge of the bottom of the connecting section is wrapped by the fork heel rail. The connecting section is in close fit with the rail top bottom and the rail bottom top of the fork heel rail through inclined planes; v-shaped first slopes are arranged on the two sides of the rail web of the working section, a second slope is arranged at the top of the rail bottom of the working section, the spacer iron is matched with the embedded block through a spigot structure, and the embedded block is in close fit with the rail top bottom and the rail bottom top of the wing rail through slopes.

Description

technical field [0001] The invention relates to the field of rail traffic, in particular to a railway frog. Background technique [0002] With the annual increase of the domestic high-speed railway transportation volume, the existing main line railways are bound to develop towards heavy-haul railways, and the market demand for heavy-duty turnout products has increased significantly. Heavy-duty railways, with their "four major characteristics" of large axle load, high density, super-large transport capacity and less maintenance time, pose extremely severe operating pressure on public works turnout equipment. Under these operating conditions, the wear and tear of frogs, the main components of turnouts And the damage is far greater than that of ordinary lines. The frogs used for heavy-duty turnouts have problems such as short life and frequent replacement, which seriously restricts the transportation capacity of heavy-duty lines. Combination frog is a form of frog widely used ...

AI Technical Summary

Problems solved by technology

Heavy-duty railways, with their "four major characteristics" of large axle load, high density, super-large transport capacity and short maintenance time, pose extremely severe operating pressure on public works turnout equipment. Under these operating conditions, the wear and tear of frogs, the main components of turnouts and the damage is far greater than that of ordinary lines. The frogs used for heavy-duty turnouts have problems such as short service life and frequent replacement, which seriously restricts the transportation capacity of heavy-duty lines.

Combination frog is a form of frog widely used in domestic heavy-haul railways. It can meet the requirements of jointed and seamless line laying. The main structural feature is symmetrical structure. The main material of frog core rail is alloy steel or high manganese steel. Manganese steel is made or forged, so the manufacturing cost is higher

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