Precise adjustment auxiliary device for track board of high speed railway and adjusting method thereof

Abstract

The invention relates to a precise adjustment auxiliary device for a track board of a high speed railway and an adjusting method thereof. The device comprises a support, a hydraulic jack and a base bolt, wherein the support comprises a support base and a support top plate, and a pit with balls placed inside is arranged on the upper surface of the base which stretches to the underside of the track board on one side; the hydraulic jack is placed in the base and on the balls, one end of the support top plate is placed at the top end of the hydraulic jack, and the other end contacts with the side of the track board; and the base bolt penetrates from the outside of the support base and abuts against the side of the hydraulic jack. During adjustment, the auxiliary device is arranged at each of the four corners of the track board; the support base is placed under the track board; the balls are placed into the base, and the base bolt is arranged; the jack is placed on the balls and raises the track board to facilitate horizontal displacement adjustment; the base bolt is rotated; the jack drives the support to prompt the track board to perform the horizontal displacement adjustment; the auxiliary devices are withdrawn after positioning; and adjustment for other track board is performed.

Description

technical field [0001] The invention relates to the adjustment of railway track slabs, in particular to a track slab precision adjustment device and an adjustment method for CRTS II slab-type ballastless tracks of high-speed railways. Background technique [0002] At present, my country is promoting the construction of high-speed railways, and the type of ballastless track used is CRTSⅡ slab ballastless track. After the plane measurement of the track reference point is completed, the prefabricated track slab passed through the cement asphalt mortar adjustment layer is laid on the concrete support layer paved on site or the reinforced concrete base (bridge) with a sliding layer poured on site. After the height measurement and evaluation are passed, the track slab will be adjusted. Each track plate is about 6.5 meters long and weighs about 7 tons. By rotating the two nuts placed on the six fine-tuning claws at the bottom of the track plate, the height and displacement are con...

AI Technical Summary

Problems solved by technology

However, in the actual field operation, due to the long-term use of the bolts infiltrated with particles and impurities, it is difficult to operate, wrench damage occurs everywhere, and the physical strength of the personnel is seriously overdrawn.

In addition, the length of the fine-adjusting claw at the bottom of the track slab is limited. During the adjustment process, if the full stroke is reached, the fine-adjusting claw may break away from the track slab, causing one corner or one side of the track slab to touch the concrete support layer, requiring a lot of manpower or even The crane reset it, seriously delaying the progress of the project

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