The new subway power bogie with a turning radius of 25 meters

Abstract

The invention discloses a novel subway dynamic bogie with a steering radius of 25 m, belonging to the field of railway vehicle dynamic bogie devices. The novel subway dynamic bogie comprises a basic framework, a swing bloster with a bearing seat, a load bearing, two air springs, two dynamic gear set assemblies, two traction pulling rods, a sidewinder-resistant torsion bar mechanism, two vertical dampers, eight conical rubber springs, a horizontal damper and four braking devices. According to the novel subway dynamic bogie, the load bearing in the novel subway dynamic bogie is also used for replacing an original primary air spring, and can bear the weight of a carriage, and the steering angle design requirement of the bogie and a subway vehicle body can be met; by adopting the new design scheme, the novel subway dynamic bogie with the steering radius of 25 m can fully meet the newest design requirement of a subway vehicle that the bearing load is greater than 10.5 t, and the smallest curve radius is 25 m; the largest steering angle of the novel bogie and the vehicle body is 15.4 degrees at most; and the largest deflection of the load bearing 2 needs to reach 260 mm.

Description

technical field [0001] The invention belongs to the field of rail vehicle power bogie devices, in particular to a novel subway power bogie with a turning radius of 25 meters. Background technique [0002] The rail vehicle generally connects the wheel set to the car body through its bogie, and the minimum curve radius that it can pass is called the minimum passing curve radius. The urban subway is a rail vehicle with many curves, and its minimum curve radius is mainly affected by two factors: the stress load index and the wheel-set spacing index of the bogie. Under the given stress load of the bogie, the minimum curve radius is proportional to the distance between the front and rear wheel sets of the bogie. Therefore, under the given stress load of the bogie, the tighter the structure of the bogie, the The smaller the radius of the curve that can pass, the higher the maneuverability of the train in the curve. [0003] The minimum curve radius of existing subway bogies is us...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the bogies of existing subway vehicles often use a structure in which the bolster is connected to the secondary air spring, the existing production technology cannot manufacture the primary air spring with a maximum displacement of 260mm and a load-bearing load greater than 10.5t, resulting in To solve the technical problem that the design scheme of a new type of subway vehicle with a bearing load greater than 10.5t and a minimum curve radius of 25m cannot be established, the present invention provides a new type of subway power bogie with a turning radius of 25m

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