Electrostatic coating device of locomotive-mounted wheel rail friction control material

Abstract

The invention discloses an electrostatic coating device of a locomotive-mounted wheel rail friction control material. The electrostatic coating device comprises a high-voltage electrostatic generator, a high-voltage electrode and a powder pump; the powder pump is provided with a secondary wind pressure pipe and a primary wind pressure pipe; a feed port of the powder pump is connected with a supply electromagnetic valve; the supply electromagnetic valve is connected with a storage tank; a discharge port of the powder pump is connected with a powder-air mixing pipe; the powder-air mixing pipe is connected with a nozzle; and the high-voltage electrode is arranged in the nozzle, and is connected with the high-voltage electrostatic generator. The electrostatic coating device has the following advantages: the electrostatic coating device saves such links as heating, stirring and insulation transportation in a solid-liquid-solid coating mode, so that the caused defects are prevented, the device is compact in structure, small in size and more convenient for installation, largely increases the material utilization rate, realizes controllability of coating thickness and density, and can adjust the coating thickness and density through a mode of adjusting primary and secondary wind pressure and voltage of the electrostatic generator according to specific conditions of different curves; and a coating method is more scientific and precise, and greatly improves the coating effect.

Description

technical field [0001] The invention belongs to the field of rail transit wheel-rail friction control, and specifically relates to a locomotive-mounted electrostatic coating device for wheel-rail friction control materials. Background technique [0002] At present, in wheel-rail transportation, in order to control the friction between the rail and the wheel of the locomotive at the curve, it is generally used to apply lubricant to the side of the rail or the rim of the wheel to reduce the friction coefficient. The lubricant is divided into two types: liquid and solid. The industry generally agrees that solid-state lubrication is superior to liquid-state lubrication. There are two methods of coating solid-state lubricant materials: spraying and wiping. Driven by the compressed air on the pump or the train, it is transported to the nozzle through the special pipeline for heat preservation, sprayed to the corresponding position of the wheel rail through the nozzle, and then rel...

AI Technical Summary

Problems solved by technology

However, this "solid-liquid-solid" method also has the following deficiencies in use due to the presence of heating, stirring, long-distance heat preservation and transmission: 1. The heating preparation period is long and requires more than 40 minutes, so it is generally run by locomotive Continuous heating throughout the process, one-time feeding and one-time use-up strategy, high energy consumption for spraying, and low material utilization

2. The smell is strong when heated, which will pollute the locomotive environment and affect the health of drivers and passengers

3. There is a fire hazard

4. The volume of the equipment is large, the insulation conveying pipeline is long, the installation is complicated, and the failure rate is high

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