High-speed train ballastless track board general accurate measurement prism support

Abstract

The invention provides a high-speed train ballastless track board general accurate measurement prism support. The high-speed train ballastless track board general accurate measurement prism support includes a supporting platform, a centering rod connected to the supporting platform, and two supporting feet; the supporting platform is isosceles right triangle-shaped; the centering rod is fixedly connected to a right angle of the supporting platform; the two supporting feet are hinged to tail ends of two right angle sides of the supporting platform; a circular level is arranged on an upper part of the centering rod, and is used for indicating rough leveling state of brake levers of the supporting feet; an embedded base is arranged on the bottom of the centering rod; the embedded base includes a disc-shaped base body and a radial bearing, a member embedded in a ballastless track board fastener threaded hole is arranged on the bottom of the base, the member is a hollow drum type cylinder, the centre of sphere of the radial bearing is positioned on a track board plane, the bottom of the centering rod matches an inner ring of the radial bearing; and the supporting feet are connected to the supporting platform through a precise leveling spiral device. The high-speed train ballastless track board general accurate measurement prism support matches the general construction accurate measurement technology, and lowers the difficulty of accurate measurement and the working loads of measurement workers.

Description

technical field [0001] The invention relates to engineering surveying, in particular to an instrument installation device for precision engineering surveying - a universal prism bracket for ballastless track slabs of high-speed railways. Background technique [0002] my country's high-speed railway track is mainly in the form of ballastless track. The models of ballastless track slabs currently used in China mainly include: CRTS I type, CRTS II type, CRTS III type ballastless track slab; CRTS I type double block type, CRTS II type double block type ballastless track. Precision engineering measurement technology is one of the key technologies for the construction and operation and maintenance of high-speed railway ballastless track. Prism frames are also structurally different. [0003] figure 1 It is the T-shaped frame in fine-tuning for the construction of the CRTS I-type track slab of the prior art, on which 3 prism bases are installed. Among them, the 2 prism bases on...

AI Technical Summary

Problems solved by technology

[0018] (1) The precise measurement methods and prism frames for different types of ballastless track construction are different and not universal;

[0019] (2) The existing prism frame cannot be leveled, and the frame must be corrected for inclination (the T frame, the speed adjustment frame and the II-type plate precise measurement carriage all have tilt sensors), and the precision measurement software has been added for The difficulty of processing observation data also reduces the efficiency of fine-tuning operations;

The height of the instrument is close to the height of the prism, and the atmospheric refraction anomaly caused by the local microclimate on the track surface has an adverse effect on the precision measurement accuracy

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