Conical rubber pile and permanent-magnetic spring combined two-system elastic suspension damping device

Abstract

The invention discloses a secondary elastic suspension damping device combined with a conical rubber stack and a permanent magnet spring, which is arranged between the rail vehicle bogie frame and the vehicle body (or bolster) for transferring the vehicle body (or bolster) pillow) and the three-way load between the frame and damping the vibration of the vehicle system. The device consists of a permanent magnetic spring and a conical rubber stack. The upper end of the permanent magnetic spring of the present invention is vertically connected in series with the conical rubber pile structure, so that the system can obtain the required longitudinal, transverse and vertical rigidity. Among them, the longitudinal and transverse stiffness are mainly provided by the conical rubber stack, and the vertical stiffness is mainly provided by the permanent magnetic spring. The specific magnetic circuit design of the permanent magnet spring can provide nonlinear vertical stiffness with excellent vibration isolation performance. The device of the present invention occupies a small space and has good vibration isolation effect, and can fully meet the requirements of the traditional rail transit form and the secondary suspension device for vehicles in the new standard rail transit form.

Description

technical field [0001] The invention relates to a secondary suspension device used for connecting a rail vehicle body and a bogie, in particular to a combined secondary elastic suspension vibration damping device comprising a conical rubber stack and a permanent magnetic spring. Background technique [0002] At present, in the field of rail transit, the secondary suspension device between the car body and the bogie usually adopts air spring, which has the characteristics of low stiffness, good vibration isolation effect and strong nonlinearity. However, the air spring is mainly made of rubber, and the interior is filled with sealing gas, so the structure is complex, and regular inspection and maintenance are required, resulting in high maintenance costs. In addition, the air spring occupies too much space and is not suitable for installation between the car body (or bolster) and the bogie with limited space size. At the same time, the rapid development of the new rail trans...

AI Technical Summary

Problems solved by technology

For example, the bogie of a suspended monorail vehicle runs inside a narrow box-shaped track beam. The performance of the secondary suspension device installed inside the box-shaped track beam not only directly affects the safety and comfort of the vehicle, but its size It is also directly related to the design size of the box track beam, which in turn affects the construction cost of the entire traffic form

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