Bogie

US8561546B2 · kind B2 · utility

Assignee

• Qiqihar Railway Rolling Stock Co., Ltd. · CN

Inventors

• Zhenming Liu · Xing'an, CN
• Chunlin Wang · Xing'an, CN
• Shihui Duan · Xing'an, CN
• Pingwei Yin · Xing'an, CN
• Hai Yao · Xing'an, CN

Key dates

• Filing date: Jul 7, 2011
• Grant date: Oct 22, 2013
• Expiry date: Dec 7, 2031

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B61F5/12
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

The invention provides a bogie which comprises a bolster, two side frames and four constant contact dampers, two sides of two ends of the bolster are respectively provided with a wedge pocket; the four constant contact dampers are respectively arranged in four wedge pockets, and each of the four constant contact dampers comprises a wedge and a damping spring; the damping spring is arranged in an inner cavity of the wedge; one end of the damping spring bears against a top inner surface of the inner cavity of the wedge, and the other end of the damping spring bears against a bottom plate of the wedge pocket, wherein the bogie further comprises four through holes and four ejectors which respectively correspond to the four constant contact dampers; the through holes are arranged on the bottom plate, and the position of each of the four through holes on the bottom plate corresponds to the position where the damping spring bears against the bottom plate and a load spring of the bogie; and one end of the ejector penetrates into the damping spring, and the other end of the ejector bears against the load spring through the through hole. The bogie of the present invention solves the technica…