Special heavy concrete compensating weight of electrified railway contact network and manufacture method thereof

Abstract

The invention discloses a special heavy concrete compensating weight of an electrified railway contact network and a manufacture method thereof. The method based on a processing manufacture method of a reinforced concrete member comprises the following steps of: manufacturing an iron framework and a template according to the shape characteristics of a weight; preparing heavy concrete according to a standardized shape and the proportion of the weight, wherein the heavy concrete is formed by mixing with iron sand as a main material, cement, river sand, a compacting agent, a polypropylene fiber and water and has the weight of 3,000-4,500kg / m3; positioning the iron framework by the template to pour, cure and mold the heavy concrete. The invention also discloses a weight produced by adopting the method. The weight produced by adopting method can meet the demanded normal working performance and effectively prevent theft and has low cost.

Description

technical field [0001] The invention relates to the field of auxiliary equipment for railway engineering, in particular to a special heavy concrete compensation weight for an electrified railway catenary and a manufacturing method thereof. Background technique [0002] Catenary is an important power supply equipment for electrified railways. At present, catenary cables and wires of catenary generally adopt the form of weight compensation to adjust tension changes. Generally, a set of pendant weights is installed at both ends of each anchor section. Generally, a set of pendant weights is 10-20 pieces. There are currently two types of weights: cement weights and iron weights. At present, the iron weight is manufactured by sand casting process, and the cement weight is manufactured by metal template casting process. With the continuous improvement of railway speed, the continuous increase of traffic density and the continuous increase of load weight, copper catenary cables an...

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Problems solved by technology

The cement weight produced by the current method is 25kg each, with a thickness of 11cm and a diameter of 36cm, which cannot well meet the a and b values ​​of the weight at the highest and lowest extreme temperature of the clues, and is often affected by the height, so it is not suitable for high speed. The counterweight height limit of the electrified railway compensation device cannot meet the working performance index; each piece of iron weight is also 25kg, the thickness is 3.5cm, and the diameter is 36cm, which can meet the working performance requirements of the weight under the extreme temperature, but it is often used The phenomenon of theft occurred, although various protective measures have been taken, it still cannot effectively solve the phenomenon of the theft of iron weights

The loss of iron weights has caused a lot of workload for equipment operation and maintenance personnel, and hidden deep safety hazards, seriously threatening the safe operation of power supply equipment and driving safety, and the production cost and operation of iron weights higher cost

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