Train compartment damping rubber mat and preparation method thereof

Abstract

The invention discloses a train compartment damping rubber mat used between a train compartment and a chassis. The train compartment damping rubber mat comprises an upper plate cooperating with the compartment, a lower plate cooperating with the chassis and a damping layer arranged between the upper plate and the lower plate. The invention further discloses a preparation method of the train compartment damping rubber mat. The train compartment damping rubber mat comprises, by mass, 100 parts of natural rubber, 4 parts of nano-zinc oxide, 1.5 parts of stearic acid, 0.5 part of a scorch retarderCTP, 35 parts of high-wear-resistance carbon black, 3.4 parts of powdered sulfur, 2.5 parts of an accelerant CZ, 1.8 parts of an accelerant DM, 50 parts of light calcium carbonate, 20 parts of oil shale ash and 2 parts of beewax. The preparation method comprises the processes of feeding, thin-passing plastifying, mixing, discharging and sulfuration. The train compartment damping rubber mat is simple in structure, low in cost, high in bearing capacity and good in buffer performance. The rubber part of the damping layer has good breaking strength and elongation at break, high hardness and the low compression set quantity, the rubber mechanical property is excellent, and the train compartment damping rubber mat is suitable for damping of large weight. The train compartment damping rubber matfurther has the advantages of energy saving and environment protection.

Description

technical field [0001] The invention belongs to the technical field of train parts and relates to a damping rubber pad for train carriages. Background technique [0002] During the running of the train, due to the joints of the rails or other conditions, large vibrations will be generated, which will bring discomfort to the ride, especially for trucks, large vibrations may affect the safe transportation of goods. Therefore, rubber pads for reducing vibration are usually provided between the train car and the underframe. The existing rubber pads have a small load-bearing capacity, either cannot meet the requirements of shock absorption well, or need to be installed in multiple places, which is very inconvenient. Contents of the invention [0003] The purpose of the present invention is to provide a train car shock absorbing rubber pad, which can provide a larger bearing capacity and has a good shock absorbing effect, so as to solve the problems in the prior art. [0004] T...

AI Technical Summary

Problems solved by technology

[0002] During the running of the train, due to the joints of the rails or other conditions, there will be large vibrations, which will bring discomfort to the ride, especially for trucks, large vibrations may affect the safe transportation of goods

Therefore, rubber pads for reducing vibration are usually provided between the train carriage and the underframe. The existing rubber pads have a small load-bearing capacity, either cannot meet the requirements of shock absorption well, or need to be installed in multiple places, which is very inconvenient

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