U-steel track switch tongue rail heel movable joint structure
A channel-shaped steel and union technology, which is used in tracks, roads, buildings, etc., can solve the problems that the heel end of the tip rail cannot adopt an elastic and bendable structure, and the space of the heel end of the tip rail is narrow, etc., and achieves reliable performance, simple structure, convenient The effect of manufacture and disassembly
Pending Publication Date: 2019-05-21
CHINA RAILWAY BAOJI BRIDGE GRP
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Problems solved by technology
[0005] Due to the planar alignment, structure and cost constraints of the turnout, the point rail of the No. 3 single-opening switch is less than 6m, and the elastic bendable structure cannot be used at the heel of the point rail, and only the movable joint structure can be used. Not for die forging type, the heel of the point rail ( Figure 5 ) is very different from the size of the grooved rail, the traditional switch joint structure is no longer applicable
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[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0026] see Figure 1-2 , the present invention provides a technical solution: a channel-shaped steel track fork point rail heel joint structure, including track heel backing plate 1, support pinch plate 3, rotating support 4 and basic rail 9, support pinch plate 3 and the basic rail 9 are all arranged on the surface of the heel plate 1, and the rotating support 4 is arranged above the support buckle 3, and the support buckle 3 and the rotating support 4 are provide...
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The invention provides a U-steel track switch tongue rail heel movable joint structure which comprises a frog heel base plate, a support buckle plate, a rotating support and a basic rail. The supportbuckle plate and the basic rail are both arranged on the surface of the frog heel base plate, the rotating support is arranged above the support buckle plate, the support buckle plate and the rotatingsupport are each provided with an installing hole, a positioning shaft is connected to the interior of each installing hole, a convex groove is formed in the surface of the rotating support, a tonguerail is installed inside the groove, a heel pressing plate is further connected to the surface of the support buckle plate, a pressing table is arranged at the surface, corresponding to the rotatingsupport, of the heel pressing plate, and the pressing table is arranged above the rotating support. According to the U-steel track switch tongue rail heel movable joint structure, the tongue rail heeladopts the movable joint structure, free rotation can be achieved, the tongue rail heel ensures transverse and longitudinal effective limiting, vertical effective buckling is achieved, the performance is reliable, the structure is simple, and manufacturing, assembling and disassembling are convenient.
Description
technical field [0001] The invention relates to the field of track joint structures, in particular to a channel-shaped steel track switch tip rail heel joint structure. Background technique [0002] Structural features of the traditional turnout point rail heel joint type: the point rail heel joint structure consists of the point rail, the basic rail, the spacer iron, two kinds of connecting bolts (stud studs, high-strength bolts), the track heel inner rail brace , ratchet and outer rail brace, bracing bolt connection pair, ratchet and backing plate (such as image 3 As shown); the inside of the point rail is equipped with a special track heel splint and the track heel inner rail brace, and the outside of the basic rail is installed with a track heel outer rail brace; spacer irons are used between the point rail and the basic rail to maintain the basic rail and the point rail and the connecting part Spacing size; the switch rail can swing with the heel end of the switch as t...
Claims
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IPC IPC(8): E01B7/08
Inventor 张海华郑会锋
Owner CHINA RAILWAY BAOJI BRIDGE GRP