CN201347088Y

CN201347088Y - Bogie frame

Info

Publication number: CN201347088Y
Application number: CNU2009200928166U
Authority: CN
Inventors: 姜朝勇
Original assignee: Changchun Railway Vehicles Co Ltd
Current assignee: CRRC Changchun Railway Vehicles Co Ltd
Priority date: 2009-01-07
Filing date: 2009-01-07
Publication date: 2009-11-18
Anticipated expiration: 2019-01-07

Abstract

The utility model relates to a bogie frame. The bogie frame is H-shaped and comprises cross beams and side beams, wherein, the cross beams adopt seamless steel pipe structures; the two seamless steel pipes are connected together through two longitudinal beams to form a cross beam framework; a motor hanger and a gearbox hanger are welded on the cross beam framework; and the side beams adopt box-shaped welded structures and are connected through the cross beam framework. The bogie frame is characterized in that the longitudinal beams adopt box-shaped structures; and vertical plates in the side beams adopt steel plate structures with thick middle parts and two thin ends. Since the longitudinal beams are modified into box-shaped structures, and the vertical plates in the side beams are steel plate structures with thick middle parts and two thin ends, the reduction of the local stress is favorable; and since the original additional air chamber is eliminated, and the welding process is greatly improved.

Description

A kind of truck frame

Technical field

The utility model relates to a kind of framework of Type B subway car bogie truck, and it mainly acts on as bogie truck " skeleton ", and the required various parts of the normal utilization of bogie truck are installed thereon, comprises draw gear, brake equipment etc.

Background technology

At present, the Type B subway bogie frame of domestic widespread usage is improved on the basis of early stage abroad truck frame mostly.Framework adopts " H " type welded frame, mainly is made up of the crossbeam of the curb girder that rolls type or box-structure, solid drawn pipe structure and longeron and various flap seat.Wherein, owing to be subjected to the solid drawn pipe structural limitations, crossbeam and longeron connection location stress are higher, and welding process is poor; The curb girder inner vertical plate is thinner, and curb girder and crossbeam connection location stress are higher, intensity surplus deficiency; Crossbeam cavity volume deficiency, beam-end need be welded auxiliary air reservoir, welding process complexity, performance difficulty.

The utility model content

Technical problem to be solved in the utility model provides a kind of truck frame, both can be used as " skeleton " of bogie truck, the required various parts of the normal utilization of bogie truck are installed thereon, can be overcome structure again and fall behind, the shortcoming of the higher and welding process difference of local location stress.

For solving the problems of the technologies described above, the utility model provides a kind of truck frame, and framework is " H " type, be made up of crossbeam and curb girder, crossbeam is the solid drawn pipe structure, by two longitudinal beams two solid drawn pipes is coupled together, form s crossbeam frame, above welding motor hanger and gear box bracket; Curb girder is the box welded structure, is connected by s crossbeam frame, and it is characterized in that: longitudinal beam is a box-structure, and the curb girder inner vertical plate is the thin steel plate structure in thick middle two ends.

The utility model is because longitudinal beam changes box-structure into, and therefore the steel plate structure that the curb girder inner vertical plate does not wait for the thin thickness in thick middle two ends is beneficial to the reduction local stress; Cancel original auxiliary chamber, improved welding process greatly.

Description of drawings:

Accompanying drawing is a structural representation of the present utility model.

The specific embodiment:

With reference to accompanying drawing, the utility model framework is " H " type, is made up of crossbeam 2 and curb girder 1, and crossbeam is the solid drawn pipe structure, by two longitudinal beams 3 two solid drawn pipes is coupled together, and forms s crossbeam frame, above welding motor hanger 5 and gear box bracket 4; Curb girder 1 is the box welded structure, is connected bottom welding braking flap seat 6 by s crossbeam frame; Longitudinal beam 3 is a box-structure, and curb girder inner vertical plate 7 is the thin steel plate structure in thick middle two ends, and middle thicker with the crossbeam junction, two ends are thin, are beneficial to the reduction local stress; Cancel original auxiliary chamber, improved welding process greatly.

Claims

1, a kind of truck frame, framework are " H " type, are made up of crossbeam and curb girder, and crossbeam is the solid drawn pipe structure, by two longitudinal beams two solid drawn pipes are coupled together, and form s crossbeam frame, above welding motor hanger and gear box bracket; Curb girder is the box welded structure, is connected by s crossbeam frame, and it is characterized in that: longitudinal beam is a box-structure, and the curb girder inner vertical plate is the thin steel plate structure in thick middle two ends.