CN203460872U

CN203460872U - Broad gauge subway end bottom frame

Info

Publication number: CN203460872U
Application number: CN201320509020.2U
Authority: CN
Inventors: 王明举; 刘晓芳
Original assignee: Changchun Railway Vehicles Co Ltd
Current assignee: CRRC Changchun Railway Vehicles Co Ltd
Priority date: 2013-08-20
Filing date: 2013-08-20
Publication date: 2014-03-05
Anticipated expiration: 2023-08-20

Abstract

The utility model discloses a broad gauge subway end bottom frame, and belongs to the field of railway vehicle end bottom frames. The end bottom frame comprises a traction beam, a corbel, two side beam, a floor beam, a coupler seat fixing seat, two air spring base plates and a center pin boss. Two longitudinal beams of the traction beam of the end bottom frame are in a splayed shape, so that a force borne by the traction beam is transferred and dispersed to the corbel and side beam orderly in the direction of the longitudinal beams. The coupler seat fixing seat is in such a structure, so that a coupler seat can be fixed on the lower end surface of the traction beam in a horizontal suspensory manner. Crossbeams and the two longitudinal beams of the traction beam are of a box body structure respectively, so the loading index of the traction beam is greatly improved, and the bearing capacity of a vehicle body is enhanced. Reinforcing plates are added to strong stress parts of the end bottom frame, weight reducing holes are formed in weak stress parts of the end bottom frame, corresponding structures are strengthened or lightened, thus, the optimization design of the whole end bottom frame can be realized, and the end bottom frame can completely meet the design requirements of Brazil 1A type railway vehicles.

Description

Broad gauge subway bottom frame

Technical field

The utility model belongs to frame field, trolley coach bottom, is specifically related to a kind of broad gauge subway bottom frame.

Background technology

Brazil 1A type trolley coach belongs to broad gauge railcar, the design plan of this broad gauge railcar is had relatively high expectations to the load indicators used of car body draw beam and coupler seat permanent seat thereof, meanwhile, the hitch designing requirement of this vehicle adopts horizontal suspension in the fixed form of draw beam lower surface.And the bottom shelf structure of current domestic trolley coach generally adopts hitch to be vertically fixed on the form of draw beam side, therefore all cannot meet the designing requirement of above-mentioned broad gauge railcar.

Utility model content

In order to solve existing trolley coach bottom frame, generally adopt hitch to be vertically fixed on draw beam side, and the load indicators used of draw beam and coupler seat permanent seat thereof requires lower, thereby cannot meet the technical matters of Brazilian 1A type trolley coach to the designing requirement of broad gauge railcar, the utility model provides a kind of broad gauge subway bottom frame.

The technical scheme that the utility model technical solution problem is taked is as follows:

Broad gauge subway bottom frame comprises draw beam, sleeper beam, two side bars, floor bearer, coupler seat permanent seat, two empty spring backing plates and center key seat; On side bar and floor bearer, be equipped with a plurality of lightening holes; Draw beam consists of a crossbeam and two the first longerons, and crossbeam and two the first longerons are body structure, and two the first longerons form chevron pointing, and equal and beam welding; Sleeper beam comprises two cross bearers, the welding of the tail end of the front side of the cross bearer of front end and two the first longerons, the left and right sides of the cross bearer of front end respectively with two side bar weldings, the left and right sides of the cross bearer of rear end also respectively with two side bar weldings; Coupler seat permanent seat is welded on the bottom surface of draw beam, and it is positioned at two formed chevron pointing tip positions of the first longeron; Two empty spring backing plates are welded on respectively the left and right sides on sleeper beam bottom surface; Center key seat is welded on the center on sleeper beam bottom surface; Floor bearer comprises 12 center members, a needle beam, three deep beams, a transom beam, two the second longerons and two brace panels, the two ends of needle beam respectively with two the first longitudinal beam weldings, one end of two the second longerons respectively with the rear side welding of the rear end cross bearer of sleeper beam, the other end of two the second longerons respectively with the front side welding of transom beam; The two ends of three deep beams respectively with two the second longitudinal beam weldings, every brace panel respectively with a center member, second longeron, transom beam welding; The two ends of six center members in 12 center members respectively with first longeron, a side bar welding, the two ends of another six center members respectively with second longeron, a side bar welding.

The beneficial effects of the utility model are: this broad gauge subway bottom frame, two longerons of its draw beam are chevron pointing, they are intersected in beam side wall equal and beam welding, and this more rational mechanical structure can make the power that whole draw beam bears conduct in an orderly manner and be distributed on the sleeper beam and side bar of bottom frame along the direction of longeron.The coupler seat permanent seat of this bottom frame can make coupler seat be fixed on the lower surface of draw beam with the form of horizontal suspension.In addition, the crossbeam of this draw beam and two longitudinal beam weldings form the load indicators used that body structure has significantly improved draw beam, have strengthened the load-carrying capacity of car body.Simultaneously, also the simulation analysis result according to computing machine counter stress structure has increased brace panel at the stronger position of frame upper stress, bottom, and be provided with lightening hole at the weak position of stress, strengthening or the lightweight of corresponding construction have been realized, thereby complete the optimal design of whole bottom frame, make it to meet completely the designing requirement of Brazilian 1A type trolley coach.

Accompanying drawing explanation

Fig. 1 is the perspective view that the utility model broad gauge subway bottom frame is seen from front;

Fig. 2 is the partial enlarged drawing of Fig. 1;

Fig. 3 is the perspective view that Jia Cong bottom surface, the utility model broad gauge subway bottom is seen.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is described in further details.

As shown in Figure 1 to Figure 3, broad gauge subway of the present utility model bottom frame comprises draw beam 1, sleeper beam 2, two side bars 3, floor bearer 4, coupler seat permanent seat 5, two empty spring backing plates 6 and center key seats 7.On side bar 3 and floor bearer 4, be equipped with a plurality of lightening holes.Draw beam 1 consists of a crossbeam 1-1 and two the first longeron 1-2, and crossbeam 1-1 and two the first longeron 1-2 are body structure, can improve more significantly the load indicators used of draw beam 1, have strengthened the load-carrying capacity of car body.Two the first longeron 1-2 are chevron pointing, they are intersected in the sidewall of crossbeam 1-1 and all weld with crossbeam 1-1, and this more rational mechanical structure can make the power that whole draw beam 1 bears conduct in an orderly manner and be distributed on the sleeper beam 2 and side bar 3 of bottom frame along the direction of two the first longerons.Sleeper beam 2 comprises two cross bearer 2-1, the tail end welding of the front side of the cross bearer 2-1 of front end and two the first longeron 1-2, weld with two side bars 3 respectively the left and right sides of the cross bearer 2-1 of front end, and also weld with two side bars 3 respectively the left and right sides of the cross bearer 2-1 of rear end.Coupler seat permanent seat 5 is welded on the bottom surface of draw beam 1, and it is positioned at two formed chevron pointing tip positions of the first longeron 1-2, and this coupler seat permanent seat 5 can make coupler seat be fixed on the lower surface of draw beam 1 with the form of horizontal suspension.Two empty spring backing plates 6 are welded on respectively the left and right sides on sleeper beam 2 bottom surfaces.Center key seat 7 is welded on the center on sleeper beam 2 bottom surfaces.

Floor bearer 4 comprises 12 center member 4-1, needle beam 4-2, three deep beam 4-3, transom beam 4-4, two second longeron 4-5 and two brace panel 4-6, weld with two the first longeron 1-2 respectively at the two ends of needle beam 4-2, one end of two the second longeron 4-5 respectively with the rear side welding of the rear end cross bearer 2-1 of sleeper beam 2, the other end of two the second longeron 4-5 respectively with the front side welding of transom beam 4-4.Weld with two the second longeron 4-5 respectively at the two ends of three deep beam 4-3, has realized the strengthening of structure.Every brace panel 4-6 welds with a center member 4-1, the second longeron 4-5, a transom beam 4-4 respectively.Weld with a first longeron 1-2, a side bar 3 respectively at the two ends of six center members 41 in 12 center member 4-1, and weld with a second longeron 4-5, a side bar 3 respectively at the two ends of another six center member 4-1.

Simulation analysis result according to computing machine counter stress structure, respectively 12 center member 4-1 of two side bars 3 and formation floor bearer 4, needle beam 4-2, a transom beam 4-4 and two weak position and structures of the second longeron 4-5 equal stress are provided with to lightening hole, have realized the lightweight of whole bottom frame is processed.

Claims

1. broad gauge subway bottom frame, is characterized in that, this bottom frame comprises draw beam (1), sleeper beam (2), two side bars (3), floor bearer (4), coupler seat permanent seat (5), two empty spring backing plates (6) and center key seat (7); On side bar (3) and floor bearer (4), be equipped with a plurality of lightening holes; Draw beam (1) consists of a crossbeam (1-1) and two the first longerons (1-2), and crossbeam (1-1) and two the first longerons (1-2) are body structure, and two the first longerons (1-2) form chevron pointing, and all weld with crossbeam (1-1); Sleeper beam (2) comprises two cross bearers (2-1), the tail end welding of the front side of the cross bearer of front end (2-1) and two the first longerons (1-2), weld with two side bars (3) respectively the left and right sides of the cross bearer of front end (2-1), and also weld with two side bars (3) respectively the left and right sides of the cross bearer of rear end (2-1); Coupler seat permanent seat (5) is welded on the bottom surface of draw beam (1), and it is positioned at the formed chevron pointing tip position of two the first longerons (1-2); Two empty spring backing plates (6) are welded on respectively the left and right sides on sleeper beam (2) bottom surface; Center key seat (7) is welded on the center on sleeper beam (2) bottom surface;

Floor bearer (4) comprises 12 center members (4-1), a needle beam (4-2), three deep beams (4-3), a transom beam (4-4), two the second longerons (4-5) and two brace panels (4-6), weld with two the first longerons (1-2) respectively at the two ends of needle beam (4-2), one end of two the second longerons (4-5) respectively with the rear side welding of the rear end cross bearer (2-1) of sleeper beam (2), the other end of two the second longerons (4-5) respectively with the front side welding of transom beam (4-4); Weld with two the second longerons (4-5) respectively at the two ends of three deep beams (4-3), and every brace panel (4-6) welds with a center member (4-1), second longeron (4-5), transom beam (4-4) respectively; Weld with first longeron (1-2), a side bar (3) respectively at the two ends of six center members (4-1) in 12 center members (4-1), and weld with second longeron (4-5), a side bar (3) respectively at the two ends of another six center members (4-1).