Two-stage stiffness type elastomer combined device
US10161468B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2014 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Oct 31, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F3/0873
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention provides a two-stage stiffness type elastomer combined device, including at least one small-stiffness elastic element and a large-stiffness elastic element, wherein the small-stiffness elastic element is arranged in an elastomer pre-compression device and is serially arranged with the large-stiffness elastic element under the action of a pre-compression load F1. The device has combined stiffness being hard at first and then becoming soft and is used as an elastic axle box suspension device of a railway vehicle, effectively solving the contradiction that a linear snaking critical operation speed of the vehicle and curve passing performance of the vehicle cannot be compromised. The device can also be applied to a variety of occasions requiring combined stiffness being soft at first and then becoming hard of an elastomer damping device between related members of the railway vehicle, so as to buffer the wheel rail impact of the vehicle, improve the dynamic performance of the vehicle and guarantee the operation safety of the vehicle to perfect the operation quality of the railway vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.