Airbag type deceleration top and deceleration method

Abstract

The invention relates to an airbag retarder and a retarding method employing the same. An exhaust system of a common retarder is open to the outside; the common retarder mounted on a field steel rail throughout the year often encounters severe weather such as rain, water may enters an exhaust pipe and flows into the retarder, and the inside of the retarder rusts; in case of heavy snow, the exhaust pipe may be blocked by the snow; at low temperature, the exhaust pipe is frozen and fail to normally exhausts. The airbag retarder comprises a piston rod (5) in a sliding cylinder (1); a speed valve plate (13) is connected to the piston rod (5); the sliding cylinder and the piston rod form a high-pressure upper cavity; the left side of a housing is provided with an exhaust line connected with an airbag (16); the housing is provided with a return line connected to the airbag; a lower cavity of the sliding cylinder is connected with a hydraulic oil pump; a return valve is mounted on a hydraulic oil pipeline; the sliding cylinder is connected with a helium pump. The airbag retarder is applicable to retarding.

Description

Technical field: [0001] The invention relates to an airbag type deceleration top and a deceleration method. Background technique: [0002] The decelerator is a speed control tool that can automatically control the speed of the vehicle without external energy. It can be used in straight and curved sections in the yard for purpose braking. It consists of two parts, the sliding cylinder assembly and the shell assembly, which are fastened on the outside of the rail with stud bolts. Inside the sliding cylinder, there is a speed valve for judging the speed of the vehicle and a pressure valve for braking the vehicle. , and filled with a certain volume of oil and nitrogen. Therefore, the retarder does not decelerate vehicles below the critical speed, but only decelerates vehicles above the critical speed. [0003] The earliest retarder in the world was developed by British Dowty Company in 1958, while our country began to study the retarder in 1974. With the help of Harbin Institu...

AI Technical Summary

Problems solved by technology

The exhaust system of the ordinary roof is connected with the outside world. Since the deceleration roof is installed on the rails in the field all the year round, it often encounters very bad weather, such as rainy days, so that water will enter the exhaust pipe and flow into the roof. Make the inside of the roof rust; if there is heavy snow, the exhaust pipe will be blocked by snow. When the temperature is low, the exhaust hole will freeze and cannot exhaust normally. In addition, in windy days, debris will easily enter the exhaust pipe , also makes the exhaust not smooth

These conditions make the roof increase maintenance costs and reduce service life

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