Bogie for A-type broad-gauge metro vehicle

Abstract

The invention discloses a bogie for an A-type broad-gauge metro vehicle. The bogie comprises a frame, a wheelset and axle box device, a primary suspension device, a secondary suspension device, a central traction device, a foundation brake device, a driving device and a rim lubrication device. The bogie is characterized in that the frame has a large lateral span, the primary suspension adopts a rubber spring, the secondary suspension adopts an air spring, a secondary vertical damper and a horizontal damper to reduce vibration and impact, so that a passenger sits more conformably, two traction rods are adopted between a vehicle body and the bogie for transferring traction and braking force, and the foundation brake device adopts a wheel mounted type disc brake unit. The bogie meets requirements for a Brazil 1A metro project contract, and the bogie for the A-type broad-gauge metro vehicle, which meets requirements for a dual-mode signal system, is researched for the first time; the gauge is 1600 mm and the axle load is 17.5 tons; the bogie has the advantages of high operation quality and convenience for maintenance and can be widely applied to the foreign market.

Description

technical field [0001] The invention belongs to the field of rail vehicle design and manufacture, in particular to an A-type 1600mm gauge subway car bogie. Background technique [0002] At present, the gauge of domestic subway vehicle running lines is the standard gauge of 1435mm, and the design of bogies is carried out on this premise. The 1600mm gauge line has not been adopted by any subway operating company, and the design of the A-type wide-gauge subway bogie has always been blank. Not only that, there are usually two types of A-type subway car bogies commonly used at present. One type is that the primary suspension is a steel spring, and the foundation brake is a wheel brake; the other type is that the primary suspension is a metal rubber spring. , the foundation brake is tread brake. Neither of these two types can meet the requirements of wide-gauge vehicles, because the first type of tread braking cannot meet the braking efficiency. In addition, in order to meet the...

AI Technical Summary

Problems solved by technology

Neither of these two types can meet the requirements of wide-gauge vehicles, because the first type of tread braking cannot meet the braking efficiency. In addition, in order to meet the requirements of wide gauge, the lateral span of the bogie needs to be widened, and the side beam of the bogie frame is just right. Right below the side beams of the car body, the use of the second type will cause interference between the bogie and the car body. Therefore, it is necessary to develop a new type of wide-gauge subway bogie with metal rubber springs as the suspension and wheel brakes as the foundation brake.

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