Motor car of 100% low-floor tramcar and assembly method of motor car

A tram and low-floor technology, applied in the direction of railway car body, transportation and packaging, railway car body parts, etc., can solve the problem of lower plasticity and impact toughness of car body, lower mechanical performance and physical performance, and reduce the use of motor car body Years and other issues, to achieve the effect of reducing the total weight of the car body, reducing the weight of the car body, and good production independence

Active Publication Date: 2014-09-03
CHENGDU XINZHU ROAD & BRIDGE MASCH CO LTD
View PDF7 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the car body after welding will have a welded heat-affected zone. Because the temperature of the heat-affected zone is too high, the mechanical and physical properties of the tissue in this zone will be reduced, which will reduce the plasticity and impact toughness of the entire car body, reducing the number of motor vehicles. body life
In addition, due to the high density of steel, the mass of the car body composed of steel will make most of the energy used to drive the car body and realize acceleration and deceleration, which causes a waste of energy

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
  • Motor car of 100% low-floor tramcar and assembly method of motor car
  • Motor car of 100% low-floor tramcar and assembly method of motor car
  • Motor car of 100% low-floor tramcar and assembly method of motor car

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] All the features disclosed in this specification, or all disclosed methods or steps in the process, except for mutually exclusive features and / or steps, can be combined in any manner.

[0032] Such as figure 1 , figure 2 , image 3 As shown, a 100% low-floor tramcar includes a top frame 1, a side wall 2, a bottom frame 3, an end wall 4, an upper hinge assembly 5, and a driver's cab 6. The top frame 1 and the side wall 2 Riveting, the side wall 2 is riveted to the bottom frame 3, the end wall 4 is riveted to the side wall 2, the bottom frame 3, the cab 6 is riveted to the top frame 1 and the bottom frame 3, and the upper hinge assembly 5 is riveted to The roof frame 1 and the end wall 4 are riveted, and the rear end of the motor car body is connected to the floating car through the upper hinge mounting seat 5.

[0033] Such as Figure 4 , Figure 7 As shown, the positions on both sides of the top frame 1 are made into a step shape, the upper position of the side wall 2 is ma...

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 a motor car of a 100% low-floor tramcar and an assembly method of the motor car. The motor car comprises a few of large components, such as a top rack, a side wall, a bottom rack, an end wall, an upper hinge component and a cab, wherein the components adopt a riveting mode instead of a traditional welding mode. A car body component adopts a modular design, the components are riveted, each component has good production independence, maintenance universality and interchangeability, and each component can synchronously develop production. Riveting is free of a heat effect, or even coating can be carried out before general assembly, so that the production efficiency is greatly improved, other components of the car body adopt an aluminum profile welding structure except for that the components with large stress adopt a steel structure, the total weight of the car body is greatly relieved in comparison with an all-steel structure, and the lightweight purpose is achieved.

Description

Technical field [0001] The invention belongs to the technical field of trams, and specifically is a car body assembly method that uses riveting instead of welding. Background technique [0002] The current 100% low-floor modern tram car body structure is usually welded by weathering steel and stainless steel. The car body welded into a whole is not convenient for transportation due to its bulky size. Especially when a part of the car body is damaged, because the car body is a welded and formed whole, the damaged part cannot be replaced arbitrarily, which increases the operation and maintenance cost of the vehicle and causes unnecessary waste. In addition, welding is now the most commonly used process method, but welding will pollute the environment and destroy the ecological environment. As the power output part of the entire tram, the car body must have good toughness, strength and plasticity. However, the car body after welding will have a welded heat-affected zone. Because ...

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
IPC IPC(8): B61D17/04
CPCY02T30/34Y02T30/00
Inventor 王菌董红波骆顺东丁国柱
Owner CHENGDU XINZHU ROAD & BRIDGE MASCH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap