Elastic coupling device for independent wheel-and-axle assembly single axle bogie

Abstract

The invention provides an elastic coupling device of a uniaxial bogie of an independent wheelset, applicable to vehicles on floor of urban light rail; and the invention comprises a front and a rear uniaxial bogie fixedly connected with a front and a rear frame; the front and the rear uniaxial bogies are provided with two groups of elastic coupling mechanisms symmetrically along two sides of the vertical midline; the single group structure is that two cylinders with the same structure are respectively fixed on the front and the rear uniaxial bogies; a connecting rod is hinged between the two pistons inside the cylinders through a spherical hinge; left and right sides of the pistons inside the two cylinders are respectively provided with two springs in precompression state. The invention overcomes the disadvantage of insufficient opening of the dualaxial bogie of the prior independent wheelset at a curve and extreme opening of the uniaxial bogie of the independent wheelset at the curve, enables the two coupling front wheelsets and rear wheelsets of the uniaxial bogie of the independent wheelsets to tend to the radial position simultaneously, and thus thoroughly solves the guiding problem of the independent wheelset.

Description

technical field [0001] The invention relates to a car hinge connection mechanism between bogies of train bodies, specifically an elastic coupling device for single-axle bogies of independent wheel pairs of urban light rail low-floor vehicles to solve the problem of passing curves of independent wheel pairs of two-axle bogies Insufficient deployment of the independent wheel set and excessive expansion of the single-axle bogie when the independent wheel set passes through the curve, so that the independent wheel set is moderately expanded on the curve and tends to the radial position. Background technique [0002] The left and right wheels of the independent wheel set can freely rotate around the axle without the need to rotate, so the axle of the independent wheel set can be made concave, thereby reducing the height of the vehicle floor, so urban light rail low-floor vehicles are usually used Independent wheel set. However, since the left and right wheels of the independent ...

AI Technical Summary

Problems solved by technology

[0006] Whether the front and rear wheel sets of the bogie are under-deployed or over-deployed on the curve is not conducive to passing through the curve.

[0007] Aiming at the guiding problem of the independent wheel set, the inventor once proposed a technical scheme of "a flexible coupling mechanism for the single-axle bogie of the independent wheel set" (patent application number 2006200367488). It fundamentally solves the problem of poor guiding performance of existing independent wheel-set two-axle bogies and independent wheel-set single-axle bogies

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