Method for regulating railway runway switch slide chair and its track-center distance, and special composite buffering eccentric bushing
A composite cushioning and eccentric sleeve technology, which is applied in roads, tracks, buildings, etc., can solve problems such as the difficulty in adjusting the gauge of sliding bed slabs, and achieve the effects of improving the stress state, enhancing the adjustment ability, and improving the bending strength
Active Publication Date: 2008-08-20
CHINA RAILWAY BAOJI BRIDGE GRP
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Problems solved by technology
[0004] The purpose of the present invention is to solve the problem of difficult adjustment of the gauge of the speed-increasing sliding bed slab, develop a method for adjusting the gauge of the sliding bed slab, and at the same time design a new type of sliding bed slab with convenient gauge adjustment and excellent performance, so that it can be conveniently and flexibly matched The gauge of the basic rail is adjusted, and at the same time, the force condition of the switch sleeper bolts can be improved
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[0020] In the present invention, a composite eccentric sleeve is designed at the bolt hole of the switch sleeper on the sliding bed plate, and the horizontal position of the sliding bed plate on the switch sleeper can be changed by rotating or changing the specifications of the composite eccentric sleeve to move left and right, so that the two-stage adjustment composed of the gauge block and the composite eccentric sleeve can be realized. distance to adjust the track distance. In addition, the inner diameter of the steel sleeve in the composite buffer eccentric sleeve is designed as a stepped structure, and the upper part is not in contact with the bolts of the switch sleeper, which reduces the height of the action point of the lateral force, and the stress state of the bolts of the switch sleeper is significantly improved. flexural strength. Moreover, the elliptical composite buffer eccentric sleeve matches the bolt holes of the bottom plate, and has the function of anti-rota...
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The invention provides a slide chair of the railway switch, the adjustment method of the gauge thereof and a special composite buffering eccentric sleeve, belonging to the technical field of railway equipment. The slide chair of the railway switch comprises a bottom plate, a slide chair, a tongue rail and a gauge block. The tongue rail is arranged at the upper part of the slide chair which is welded on the bottom plate; a rubber mat is fixed at the lower side surface of the bottom plate; the gauge block is arranged at one side of the bottom plate, and the bolt holes of switch sleepers are opened at both ends of the bottom plate; a composite buffering eccentric sleeve is arranged at the position of the bolt holes of the switch sleepers, which alters the horizontal position of the slide chair on the switch sleeper by left-and-right moving through rotation or replacing the specifications of the composite buffering eccentric sleeve; the bolts of the switch sleepers are arranged in the composite buffering eccentric sleeve. A two-level gauge adjustment method formed by the composite buffering eccentric sleeve and the gauge block has the advantage of improving the basic track gauge adjustment capacity of the slide chair.
Description
technical field [0001] The invention belongs to the technical field of construction of roads, railways or bridges, in particular to an improvement of a railway turnout in a railway track accessory. Background technique [0002] The speed-increasing sliding bed plate is welded to the upper plate, which is a fixed connection (such as Figure 8 shown), the distance of the basic rail cannot be adjusted inward after wear. In order to meet the gauge adjustment of the basic rail, a 2mm gap was reserved between the inner platen and the basic rail limbs of some speed-up slides, and an adjusting piece was set. When the basic rail needs to be adjusted inward, the adjusting piece is replaced to match The outer gauge block is adjusted to realize the distance adjustment of the basic rail. Although this method is simple, the adjustment piece is easy to rust and difficult to replace in field application, and the corresponding switch rail must be in the open state during replacement, so it ...
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IPC IPC(8): E01B7/00E01B7/02E01B7/22E01B7/20
Inventor 王全生杨西董彦录王阿利费维周
Owner CHINA RAILWAY BAOJI BRIDGE GRP