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Chassis of body of hundred-percent modern city tramcar

A technology for trams and car bodies, applied to the underframe, railway car body parts, transportation and packaging, etc., which can solve the problems that the parts cannot be independently synchronized, the welding process requirements are high, and there are too many welding parts, etc., to achieve Less prone to local fatigue damage, improved repair rate and general use rate, less prone to stress concentration

Inactive Publication Date: 2014-09-03
CHENGDU XINZHU ROAD & BRIDGE MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, 100% low-floor modern urban tram cars and trailer bodies mainly adopt an integrated frame-type welded steel structure, and the car body is formed by tailor-welding of individual parts. The stressed structure does not form an integral box-frame structure. There are too many welding parts, which require high welding technology, and each part cannot be independently and synchronously, which affects production efficiency

Method used

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  • Chassis of body of hundred-percent modern city tramcar
  • Chassis of body of hundred-percent modern city tramcar
  • Chassis of body of hundred-percent modern city tramcar

Examples

Experimental program
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specific Embodiment 1

[0026] like figure 1 , figure 2 As shown, a 100% modern urban tram car body chassis includes a corbel 1, a longitudinal beam 2, a first end beam 3, a second end beam 4, a first side beam 5, and a second side beam 6. The aforementioned parts are all welded with high-strength carbon steel materials, and each part is welded separately and then tailor-welded. The corbel beams, longitudinal beams, end beams and side beams can be welded into a box frame structure. The corbel 1 is welded into a closed "bow" box shape, connected with the shock absorbing spring of the bogie, and is one of the main load-bearing points. The longitudinal beams 2 are welded into a closed box-shaped structure, and the two longitudinal beams are arranged in parallel and run through the entire vehicle body, which is beneficial to the transmission of force and connects various components of the vehicle body chassis. As one of the main load-bearing parts, the longitudinal beam 2 itself is welded by high-str...

specific Embodiment 2

[0029] like Figure 5 As shown, it is another specific scheme of a 100% modern urban tram car body underframe. The welded structure of the second end beam 4 also integrates the hinge mounting seat 7, the traction rod mounting seat 8, the hoisting support 9 and The transverse damper is installed with a support 10, which is convenient for connection and disassembly with other parts. The end beam 4 is connected with the bogie and the traction rod through the traction rod mounting seat 8, and bears the impact force of braking and traction. The hoisting assembly is installed through the hoisting support 9, and the damper is installed through the transverse damper mounting support 10. Hingedly connect other carriages. The first end beam 3 is also replaced with the same structure as the second end beam 4, and the second hinge mounting seat 14, the second traction rod mounting seat 15, the second The second suspension support 16 and the second transverse damper installation support ...

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Abstract

The invention discloses a chassis of a body of a hundred-percent modern city tramcar. The chassis comprises a sleeper beam, a longitudinal beam, a first end beam, a second end beam, a first side edge beam and a second side edge beam, wherein the sleeper beam is welded to form a closed box type shaped like a Chinese character 'gong'; the longitudinal beam is welded to form a closed box type structure which penetrates through the whole body; the sleeper beam, the longitudinal beam, the end beams and the side edge beams are welded together to form a #-shaped frame structure. The chassis is formed by welding high-strength carbon steel materials, all parts are independently welded to be spliced into the chassis, and the chassis is riveted with other parts of the body. Requirements for small space of a low-floor vehicle chassis are met, and the sleeper beam and the longitudinal beam respectively form the closed box-type structure, so that the stress is uniform and is not prone to concentration, the structure is stable, the local fatigue failure is not prone to occurrence, requirements for weight control over the chassis of the whole vehicle are met, and damaged parts of the body can be independently replaced.

Description

technical field [0001] The invention belongs to the technical field of urban rail transit, and relates to a car body chassis for 100% modern urban trams. Background technique [0002] Tram is a low-capacity rail transit system, which has the advantages of energy saving and environmental protection, less investment, moderate passenger capacity, better riding comfort, and less post-maintenance. Among them, 100% low-floor trams are known for their convenience, comfort and safety without setting up platforms. The underframe of the motor car and trailer body plays the role of connecting other carriages, carrying passengers, bearing and transmitting loads, etc. [0003] At present, 100% low-floor modern urban tram car bodies and trailer bodies mainly adopt integral frame-type welded steel structures, and the body is formed by tailor-welding of individual parts. The stressed structure does not form an integral box-frame structure. There are too many welding parts, which require h...

Claims

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Application Information

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IPC IPC(8): B61F1/00
Inventor 黄世斌刘强丁国柱郭绍波王菌
Owner CHENGDU XINZHU ROAD & BRIDGE MASCH CO LTD
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