CN212386491U

CN212386491U - Welding framework of A-type metro vehicle tread braking bogie

Info

Publication number: CN212386491U
Application number: CN202020327711.0U
Authority: CN
Inventors: 刘志远; 王凯风; 徐成祥
Original assignee: CRRC Changchun Railway Vehicles Co Ltd
Current assignee: CRRC Changchun Railway Vehicles Co Ltd
Priority date: 2020-03-16
Filing date: 2020-03-16
Publication date: 2021-01-22
Anticipated expiration: 2030-03-16

Abstract

The utility model provides a welding framework of A type railcar tread braking bogie relates to railway vehicle bogie frame and makes technical field, and it includes two wing curb girders, two tubulose crossbeams, two little longerons, two gear box hanging seat, two motor hanging seat, two vertical backstops, two horizontal backstops, two empty spring mount pads, four one are spring holders and four braking mount pads. The utility model has the advantages that: the cross beam and the small longitudinal beam of the framework are made of steel pipes, so that the torsional rigidity is improved, the welding quantity and the welding deformation of the framework are reduced, and the occurrence probability of welding defects is reduced; the side beam adopts a box-type welding structure, so that the use of castings is reduced to the greatest extent from the whole framework, and the strength of the framework is improved.

Description

Welding framework of A-type metro vehicle tread braking bogie

Technical Field

The utility model relates to a railway vehicle bogie frame makes technical field, concretely relates to welding framework of A type railcar tread braking bogie.

Background

At present, the axle weight of the A-type subway train is mostly designed according to 17 tons, and the requirement on the strength of a bogie frame is very strict. However, the side beams, the cross beams and the longitudinal beams of the conventional tread brake bogie frame are all formed by casting or are all formed by box-type welding structures, the frame formed by all castings has low torsional rigidity and unsatisfactory strength, the frame of all box-type structures has large welding amount and large welding deformation, and the local stress is large, so that the welding defect is easy to occur.

In order to meet the requirements of A-type metro vehicle tread brake bogies, a framework which has the strength meeting the requirements and is low in occurrence probability of welding defects is urgently needed to be provided.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem that torsional rigidity is low, intensity is not conform to the requirement and welding defect is big that current tread braking bogie frame exists, the utility model provides a welding framework of A type railcar tread braking bogie.

The utility model provides a technical scheme as follows that technical problem took:

a welding framework of an A-type metro vehicle tread brake bogie comprises two wing-shaped side beams, two tubular cross beams, two small longitudinal beams, two gear box hanging seats, two motor hanging seats, two vertical stopping blocks, two transverse stopping blocks, two air spring mounting seats, four primary spring seats and four brake mounting seats;

the method is characterized in that: the two wing-shaped side beams are of box-shaped welding structures, and the two tubular cross beams and the two small longitudinal beams are of steel tube structures; the two tubular cross beams are arranged in parallel, and two ends of the two tubular cross beams are respectively and vertically welded in the middle parts of the two wing-shaped side beams; the two small longitudinal beams are rotationally and symmetrically arranged by taking the center of the framework as a rotation center, and are vertically welded at two ends of the two tubular cross beams;

the two gear box hanging seats are rotationally and symmetrically arranged by taking the center of the framework as a rotating center, and the two gear box hanging seats are welded at one end part of the two small longitudinal beams in a one-to-one correspondence manner;

the two transverse backstops are symmetrically welded on the inner end surfaces of the two small longitudinal beams, the two vertical backstops are rotationally and symmetrically arranged by taking the center of the framework as a rotation center, and the two vertical backstops are welded on the inner end surfaces of the two tubular cross beams in a one-to-one correspondence manner;

two motor hanging seats are symmetrically welded on the outer end faces of two tubular cross beams, two hollow spring mounting seats are symmetrically welded at the central positions of the upper end faces of two wing-shaped side beams, four first-system spring seats are symmetrically welded at two ends of the lower end faces of the two wing-shaped side beams in a pairwise manner, and four brake mounting seats are symmetrically welded at two ends of the outer end faces of the middle parts of the two wing-shaped side beams in a pairwise manner.

The utility model has the advantages that: the cross beam and the small longitudinal beam of the framework are made of steel pipes, so that the torsional rigidity is improved, the welding quantity and the welding deformation of the framework are reduced, and the occurrence probability of welding defects is reduced; the side beam adopts a box-type welding structure, so that the use of castings is reduced to the greatest extent from the whole framework, and the strength of the framework is improved.

Drawings

FIG. 1 is the structural schematic diagram of the welded frame of the A-type metro vehicle tread braking bogie of the present invention.

Fig. 2 is a schematic top view of the structure of fig. 1.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, the utility model discloses a welding framework of A type railcar tread braking bogie, it includes two wing curb girders 1, two tubulose crossbeams 2, two little longerons 3, two gear box hanging seat 4, two motor hanging seat 5, two vertical backstops 6, two horizontal backstops 7, two empty spring mount pads 8, four one series of spring seats 9 and four braking mount pads 10.

The two wing-shaped side beams 1 are of box-shaped welding structures, and the two tubular cross beams 2 and the two small longitudinal beams 3 are of steel tube structures; the two tubular cross beams 2 are arranged in parallel, and two ends of the two tubular cross beams are respectively and vertically welded in the middle of the two wing-shaped side beams 1; the two small longitudinal beams 3 are rotationally and symmetrically arranged by taking the center of the framework as a rotation center, and the two small longitudinal beams 3 are vertically welded at two ends of the two tubular cross beams 2.

The two gear box hanging seats 4 are rotationally and symmetrically arranged by taking the center of the framework as a rotation center, and the two gear box hanging seats 4 are welded at one end part of the two small longitudinal beams 3 in a one-to-one correspondence manner; the two transverse backstops 7 are symmetrically welded on the inner end faces of the two small longitudinal beams 3, the two vertical backstops 6 are rotationally and symmetrically arranged by taking the center of the framework as a rotation center, and the two vertical backstops 6 are welded on the inner end faces of the two tubular cross beams 2 in a one-to-one correspondence mode.

Two motor hanging seats 5 are symmetrically welded on the outer end faces of two tubular cross beams 2, two air spring mounting seats 8 are symmetrically welded at the central positions of the upper end faces of two wing-shaped side beams 1, four first-series spring seats 9 are symmetrically welded at two ends of the lower end faces of the two wing-shaped side beams 1 in pairs, and four brake mounting seats 10 are symmetrically welded at two ends of the outer end faces of the middle parts of the two wing-shaped side beams 1 in pairs.

Claims

1. A welding framework of an A-type metro vehicle tread brake bogie comprises two wing-shaped side beams (1), two tubular cross beams (2), two small longitudinal beams (3), two gear box hanging seats (4), two motor hanging seats (5), two vertical stopping blocks (6), two transverse stopping blocks (7), two air spring mounting seats (8), four primary spring seats (9) and four brake mounting seats (10);

the method is characterized in that: the two wing-shaped side beams (1) are of box-shaped welding structures, and the two tubular cross beams (2) and the two small longitudinal beams (3) are of steel tube structures; the two tubular cross beams (2) are arranged in parallel, and two ends of the two tubular cross beams are respectively and vertically welded in the middle parts of the two wing-shaped side beams (1); the two small longitudinal beams (3) are rotationally and symmetrically arranged by taking the center of the framework as a rotation center, and the two small longitudinal beams (3) are vertically welded at two ends of the two tubular cross beams (2);

the two gear box hanging seats (4) are rotationally and symmetrically arranged by taking the center of the framework as a rotation center, and the two gear box hanging seats (4) are welded at one end part of the two small longitudinal beams (3) in a one-to-one correspondence manner;

two transverse backstops (7) are symmetrically welded on the inner end surfaces of the two small longitudinal beams (3), two vertical backstops (6) are rotationally and symmetrically arranged by taking the center of the framework as a rotation center, and the two vertical backstops (6) are correspondingly welded on the inner end surfaces of the two tubular cross beams (2) one by one;

two motor hanging seats (5) are symmetrically welded on the outer end faces of two tubular cross beams (2), two air spring mounting seats (8) are symmetrically welded at the central positions of the upper end faces of two wing-shaped side beams (1), four first-series spring seats (9) are symmetrically welded at the two ends of the lower end faces of the two wing-shaped side beams (1), and four brake mounting seats (10) are symmetrically welded at the two ends of the outer end faces of the middle parts of the two wing-shaped side beams (1).