A measuring frame for track slabs

Abstract

The invention discloses a measuring frame of a rail board. The measuring frame comprises a prism device, and further comprises a side face positioning mechanism and a bottom face positioning mechanism, the side face positioning mechanism is arranged above the bottom face positioning mechanism, and the prism device penetrates through the side face positioning mechanism and is arranged on the upperportion of the bottom face positioning mechanism; the side face positioning mechanism comprises a side face positioning rack, and side face positioning rolling wheels are mounted at the two ends of the side face positioning rack correspondingly; the bottom face positioning mechanism comprises a bottom face positioning rack, primary positioning shafts are arranged on both sides of the bottom of thebottom face positioning rack, a bottom face positioning rolling wheel is mounted at the bottom of the bottom face positioning rack, the two sides of the side face positioning rack are correspondinglyconnected with the corresponding ends of the bottom face positioning rack through connecting shafts, the top ends of the connecting shafts extend out from the side face positioning rack, and the topends of the connecting shafts are provided with a limiting plate, the bottom ends of the connecting shafts are fixedly connected with the bottom face positioning rack, and the side face positioning rack is movably connected with the connecting shafts and can move up and down on the connecting shafts. The measuring frame of the rail board is precise and reliable in positioning.

Description

technical field [0001] The invention relates to a measuring frame for a track slab, in particular to a measuring frame for a CRTSIII type slab-type ballastless track standard track slab. Background technique [0002] CRTSIII type slab ballastless track standard track slab is a new ballastless track slab formed at one time with independent intellectual property rights in my country. It is a new unit slab structure with shoulders and has been popularized and applied in high-speed rail projects. The standard track slab of CRTSIII slab ballastless track includes key components such as bottom plane, rail support platform and embedded casing, among which the key parts of the track support platform are the bottom rail surface and the jaw surfaces on both sides. During the laying process of the track slab, the fine adjustment and acceptance of the track slab generally adopts the measuring system of measuring frame, total station and measuring software. The prism center of the measur...

AI Technical Summary

Problems solved by technology

This type of measurement frame is positioned by the large jaws of the track slab. The prism can reflect the spatial position and state of the track slab, but the device cannot effectively locate the two jaws of the rail support platform, so the center of the prism cannot truly reflect the position of the rail. exact location

In addition, the measurement frame adopts a conical telescopic mechanism, and the holes of the two embedded casings are used as the reference for precise positioning. Due to the deviation of the position and verticality of the embedded casing, this is used as the reference for accurate positioning. It will also cause the center of the prism to not truly reflect the exact position of the rail

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