Unlock instant, AI-driven research and patent intelligence for your innovation.

Underframe structure of a low-floor tram

A tram and low-floor technology, applied to the underframe, railway car body parts, transportation and packaging, etc., can solve the problems of poor stability, small distance, small space, etc., to increase the vertical distance and meet the comfort of riding sexual effect

Active Publication Date: 2021-04-20
中铁轨道交通装备有限公司
View PDF7 Cites 0 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Underframe structure of a low-floor tram
  • Underframe structure of a low-floor tram
  • Underframe structure of a low-floor tram

Examples

Experimental program
Comparison scheme
Effect test

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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an underframe structure for a low-floor tram, which includes an underframe body, and the underframe is composed of a first-end structure, a middle corbel structure, an aisle structure and a second-end structure welded sequentially from front to back, Its front and rear length is 5420mm, its left and right width is 2504mm, and its height is 760mm; the center of the outer end of the aisle structure is welded with a lower hinged seat and a rotating stopper seat. This kind of low-floor tram chassis structure meets the installation of various equipment on the tram body, ensures the stable operation of the vehicle, can meet various load requirements generated during the operation of the vehicle, and at the same time meets the axle load of the vehicle body and low cost. Simple, easy to manufacture requirements.

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
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