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Low-floor tramcar underframe structure

A technology for trams and low floors, which is applied to the underframe, railway car body parts, transportation and packaging, etc., can solve the problems of poor stability, small distance, unfavorable arrangement of other devices, etc. The effect of vertical spacing

Active Publication Date: 2020-06-09
中铁轨道交通装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The hourglass spring installation surface of the low-floor tram in the prior art is low, resulting in a small vertical distance between the bogie and the car body and a small space, which is not conducive to the arrangement of other devices
The distance between the hourglass springs is small, and the stability is poor when supporting the car body

Method used

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  • Low-floor tramcar underframe structure
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  • Low-floor tramcar underframe structure

Examples

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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] figure 1 and figure 2 The underframe structure of a low-floor tram is shown, including the underframe body, and the underframe is welded from front to back by a first-end structure 1, a middle corbel structure 2, an aisle structure 3, and a second-end structure 4 The front and rear length is 5420mm, the left and right width is 2504mm, and the height is 760mm; the center of the outer end of the aisle structure 3 is solidly welded with the lower hinge seat 5 and the rotation stop seat.

[0028] In order to simplify the design and facilitate assembly and disassembly, the one-end structure 1 includes a front-end structure 11, an intermediate structure 12, and a rear-end structure 13. The left and right sides of the structure 12 are symmetrically provided with longitudinal beams 15 connecting the front end structure 11 and the rear end s...

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Abstract

The invention discloses a low-floor tramcar underframe structure, which comprises an underframe body. The underframe is formed by sequentially welding a first-position end structure, a middle sleeperbeam structure, an aisle structure and a second-position end structure from front to back, the front-back length of the underframe is 5420mm, the left-right width of the underframe is 2504mm, and theheight of the underframe is 760mm; and a lower hinge seat and a rotary stop seat are fixedly welded at an outer end center of the aisle structure. The low-floor tramcar underframe structure meets therequirements for installation of various devices of a tramcar body, ensures stable operation of the tramcar, can meet the requirements for various loads generated during operation of the tramcar, andmeanwhile meets the requirements for axle load of the tramcar body, low cost, simple structure and convenient manufacturing.

Description

technical field [0001] The invention relates to the field of trams, in particular to a low-floor tram chassis structure. Background technique [0002] Low-floor trams are one of the important means of transportation in modern urban rail transit. They are popular among cities for their low construction cost, convenience for passengers, flexible operation, diverse marshalling, large passenger capacity, and sharing of existing road resources. welcome. [0003] The underframe is an important part of a low-floor tram. For the underframe of the car body on the bogie, it bears the entire weight of the car body and needs to transmit the operating load transmitted by the bogie during operation. Therefore, the car body is required to The chassis has certain strength, rigidity and stability, and has good force transmission performance. [0004] The hourglass spring installation surface of the low-floor tram in the prior art is low, resulting in a small vertical distance between the b...

Claims

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Application Information

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IPC IPC(8): B61F1/00B61F1/10B61F1/08B61F1/02
CPCB61F1/00B61F1/02B61F1/08B61F1/10
Inventor 杨坤刘琳峰阚松毕海涛黄鹏刘威
Owner 中铁轨道交通装备有限公司