A railway freight car bogie vibration damping device which can provide composite vibration damping force
A vibration damping device and a technology for railway freight cars, which are applied in the direction of the device for lateral relative movement between the underframe and the bogie, can solve the problems of insufficient bogie capacity, inability to design a wide-body wedge, and inability to effectively suppress amplitude growth, etc. , to achieve the effect of reducing vehicle manufacturing and operation and maintenance costs, improving technical performance and operating quality, and improving technical performance and operating quality
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[0031] The present invention will be further described below in combination with specific embodiments. The specific embodiments are further explanations of the principles of the present invention and do not limit the present invention in any way. The same or similar technologies as the present invention do not exceed the protection scope of the present invention.
[0032] Combined with the drawings.
[0033] A railway freight car bogie vibration damping device that can provide composite damping force. The bogie includes a bolster 21 and is placed on the side frame 23 through a central suspension spring 22. The vibration damping device is installed at the end of the bolster 21. The damping device consists of two Partially constituted, the wide-body wedge damping part installed on the flat surface 12 on the bottom of the oblique wedge groove at the end of the bolster and the spring damping part installed on the bottom flat surface 13 of the oblique wedge groove at the end of the bolst...
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