Rail friendly type anti-yaw oil pressure damper and parameter design method thereof

Abstract

The invention provides a rail friendly type anti-yaw oil pressure damper. The rail friendly type anti-yaw oil pressure damper comprises a piston rod end part connecting part, a dustproof cover, a rubber dustproof sleeve, a dustproof ring, an inner cap nut, a framework oil seal, an outer cap nut, a guide bearing end part sealing part, a guide bearing assembly, a guide bearing gas exhaust plate, a pressure cylinder barrel, a piston-piston rod assembly, an oil storage cylinder assembly, hydraulic oil, a bottom valve assembly, a pressure cylinder barrel gasket, a bottom valve gasket, an oil guide plate assembly, a small magnet and an oil return assembly. The two sides of a middle area of the inner wall of the pressure cylinder barrel of the oil pressure damper are equipped with symmetrical bypass damping slots; and when a position, passing through a curve, a bogie and a vehicle body, of a train changes, the oil pressure damper has a damping self-adapting function, and can effectively reduce wheel rail acting force and abrasion. The rail friendly type anti-yaw oil pressure damper avoids the defects that an active control type anti-yaw oil pressure damper system is complex, is poor in reliability and real-time property, is high in manufacturing cost and is difficult to maintain, and also achieves the effects of having a damping coefficient varying function and being safe and reliable. The invention further provides a low damping parameter design method for the rail friendly type anti-yaw oil pressure damper.

Description

technical field [0001] The invention relates to an anti-snake oil pressure shock absorber capable of effectively reducing the force and wear of railway locomotives and vehicles, especially high-speed rail wheels and rails, and a parameter design method thereof, belonging to the technical field of design and manufacture of rail transit equipment and hydraulic dampers. Background technique [0002] The anti-snaking hydraulic shock absorber is the damping part of the high-speed railway rolling stock, which plays an important role in the stability and comfort of the rolling stock. When the train is running on a straight track, the anti-snaking oil pressure shock absorber is required to have a large damping coefficient to improve the stability of the train's snaking motion; The damping coefficient of the device is very small or zero, so as to reduce the force and wear of the lateral movement of the wheel and rail. Since the damping characteristics of conventional anti-snaking oi...

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Problems solved by technology

[0005] In order to effectively reduce the force and wear of modern railway locomotives, especially high-speed rail wheels and rails, and at the same time avoid the disadvantages of active control anti-snake oil pressure shock absorber system complexity, poor reliability and real-time performance, high cost and difficult maintenance, it is necessary Invented a safe and reliable anti-snaking hydraulic shock absorber product with variable damping coefficient function, and provided specific parameter design methods for this type of product

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