Construction process of large equipment hoisting tail sliding rail capable of reducing friction coefficient

Abstract

The invention provides a construction process of a large equipment hoisting tail sliding rail which is capable of reducing a friction coefficient. The construction process comprises the steps of: pouring a concrete bearing platform, laying a rail supporting bottom plate, mounting a guide limit structure, and laying a PTFE (polytetrafluoroethylene) sliding plate, wherein the PTFE sliding plate consists of a polytetrafluoroethylene plate and a steel plate carrier; oil storage recesses which are uniformly distributed are arranged on the upper surface of the polytetrafluoroethylene plate; the lower surface of the polytetrafluoroethylene plate is subjected to sodium treatment; the steel plate carrier is positioned at the lower part of the polytetrafluoroethylene plate; the lower surface of the polytetrafluoroethylene plate is adhered together with the steel plate carrier; and the PTFE sliding plate is fixed on the rail supporting bottom plate through spot welding through the steel plate carrier. By adopting the PTFE sliding plate, the friction force between the large equipment hoisting tail and the rail generated when the large equipment hoisting tail slides is obviously reduced; the needed tractive force is little; the hoisting tail can continuously and stably slide on the rail; the safety risk of construction work is reduced; the material amount and construction workload are saved; large tractor equipment is avoided; and engineering cost is reduced.

Description

technical field [0001] The invention relates to a construction process of a sliding track, in particular to a construction process of a large-scale equipment hoisting tail row sliding track capable of reducing the friction coefficient. Background technique [0002] At present, the "slip method" is one of the most commonly used methods for hoisting large-scale equipment. The main hoisting crane stands near the equipment foundation to hoist the head of the equipment, and the tail of the equipment is placed on the hoisting tail row. During hoisting, with the lifting of the main crane, the hoisting tail row moves along the special sliding track to the direction of the equipment foundation under the action of the traction force of the special traction block group, gradually erecting the equipment. [0003] There are two traditional hoisting and sliding methods: one is to place steel rollers on the track, and the hoisting tail row moves forward on the steel rollers by rolling the ...

AI Technical Summary

Problems solved by technology

Therefore, the traditional hoisting and slipping method requires a large traction force because of the large friction coefficient. When the sliding weight borne by the hoisting rear row is large, it is necessary to invest in traction equipment with sufficient capacity to provide sufficient traction force; due to the traction force The safety risk of hoisting construction operations also increases; at the same time, the intermittent (pulse) movement mode of the hoisting tail row on the track, at the start of each slip, the traction force will be transmitted through the hoisted equipment. Shock loads from the main crane

Images