Articulated bogie with embedded vibration and noise reduction device

Abstract

The utility model discloses a hinged bogie with an embedded vibration and noise reduction device, and relates to a railway freight car bogie, in particular to a hinged bogie. The hinged bogie comprises a wheel set assembly, a side frame assembly, a swing bolster assembly, an integrated braking device, an elastic side bearing assembly and a central suspension and vibration reduction device, whereinthe central suspension and vibration reduction device comprises a wedge, a vibration reduction spring, an inner circle spring and an outer circle spring, wherein the vibration reduction spring, the inner circle spring and the outer circle spring are installed on the wedge, and the inner circle spring is sleeved with the outer circle spring. The key technology is that a spring tray is arranged atthe upper end of an inner circle spring and a stabilizing spring is arranged in the spring tray, so that the embedded type damping device is formed. Compared with the prior art, the embedded damping device has the beneficial effects that through the effect of the embedded damping device, the translational degree of freedom of the inner circle spring in the vertical direction is restrained, noise pollution caused by vibration of parts and collision between the parts and adjacent parts is eliminated, and the environmental friendliness of a vehicle is further improved.

Description

technical field [0001] An articulated bogie with an embedded vibration and noise reduction device relates to a railway freight car bogie, in particular to an articulated bogie. Background technique [0002] The role of the railway freight car bogie is to support the car body, guide the vehicle along the track, and bear various loads from the car body and the line. A typical railway freight car is usually equipped with two three-piece two-axle freight car bogies, and the weight of each car is borne by four axles. Each three-piece truck bogie is composed of two wheel sets, four sets of rolling bearing devices, two side frames, one bolster, one set of foundation braking device, central damping suspension device, side bearing and other components. [0003] Usually, steel spring sets of equal height or steel spring sets of unequal height are used in the central suspension system of railway freight car bogies. When using equal-height spring sets, due to the large weight differen...

AI Technical Summary

Problems solved by technology

When using equal-height spring sets, due to the large weight difference of railway freight car bodies, especially when equipped with smaller self-weight car bodies, the spring deflection of the empty car is small, and the running quality of the vehicle is poor; while using unequal-height spring sets , although it can increase the spring deflection of the empty vehicle, thereby improving the running quality of the vehicle, but because the inner spring is in a free assembly state (no load action) when the vehicle is empty, it is disturbed on the line (irregular lines, triangular pits, turnouts, etc.) Free vibrations will occur when operating under these conditions, resulting in noise pollution

[0004] Secondly, under the configuration conditions of traditional vehicles, each vehicle uses two bogies, and the costs of vehicle manufacturing, operation and maintenance are relatively high.

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