Underneath type primary suspension structure for railway locomotive bogie framework

A railway locomotive and frame technology, which is applied in the field of heavy-duty locomotive bogie manufacturing, can solve the problems of high bogie and difficult to realize, and achieve the effect of reducing the installation height
CN102717810AInactive Publication Date: 2012-10-10SOUTHWEST JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTHWEST JIAOTONG UNIV
Publication Date
2012-10-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an underneath type primary suspension structure for a railway locomotive bogie framework. The underneath type primary suspension structure mainly comprises a wheel set, a framework and a tumbler journal box, wherein the framework is supported on a journal of the wheel set by primary springs, one end of the tumbler journal box is rotatably arranged on the journal of the wheel set (10), the other end of the tumbler journal box is fixed on the framework (9) by an elastic node (8). The framework (9) is suspended below the tumbler journal box (6) in parallel by two guide pillars (7), a connecting plate (2) and the primary springs (4), the tumbler journal box supports the primary springs by spring lower seats (5), the two primary springs pass through a spring upper seat (3), the connecting plate and the guide pillars and are fixed by a nut (1). According to the invention, the framework is arranged below the journal box, so that the height of the upper plane of the intermediate framework of a bogie is lowered, and a B0B0-B0B0 axle type eight-axle locomotive can be realized in Chinese standard gauge limit.
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Description

technical field

[0001] The patent of the invention belongs to the technical field of railway locomotive, especially heavy-duty locomotive bogie manufacturing technology. Background technique

[0002] At present, the main high-power locomotive for freight transportation in my country is an AC drive electric locomotive with a shaft power of 9600kW and a 2C0 shaft. Its curve passing performance is poor, and it is not suitable for mountain lines with a small curve radius. The single-section eight-axle locomotive can effectively increase the wheel-rail adhesion weight and the traction tonnage of the single-section locomotive. Compared with the 2C0-axle 9600kW six-axle locomotive in service in China, it has the advantages of large adhesion weight, wide constant power range, and good curve passing performance. Compared with domestic double locomotives and double-connected eight-axle locomotives, it has the advantages of low manufacturing and maintenance costs. The B0B0-B0B0 axle-...

Claims

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