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Design method applied to car frame assembly structure of two-step urban passenger car

A design method and assembly structure technology, applied in the substructure, vehicle parts, transportation and packaging, etc., can solve the problem of low utilization rate of the passenger area of ​​the low floor, etc., achieve the weight reduction of the frame, the reduction of the manufacturing cost, and the convenience of transportation in different places and the effect of assembling

Inactive Publication Date: 2011-03-23
SHAANXI EUROSTAR AUTOMOBILE
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Problems solved by technology

[0003] The purpose of the present invention is to provide a design method for the frame assembly structure applied to a two-stage stepping city bus, so as to solve the problem of low utilization rate of the passenger area of ​​the low floor, and realize the modular design and the off-site transportation of the frame parts at the same time and assemble

Method used

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  • Design method applied to car frame assembly structure of two-step urban passenger car
  • Design method applied to car frame assembly structure of two-step urban passenger car
  • Design method applied to car frame assembly structure of two-step urban passenger car

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Embodiment Construction

[0016] Such as figure 1 and Figure 6 As shown, it includes the front section frame module 1, the front axle frame module 2, the middle section frame module 3, the rear axle frame module 4, the rear section frame module 5, the front section frame module 1, the middle section frame module 3 and the rear section The longitudinal beams on both sides of the section frame module 5 have a "["-shaped structure, and the planes of the longitudinal beams on the front and rear sides of the front axle frame module 2 are connected to the longitudinal beams on both sides of the front section frame module 1 and the middle section frame module 3 respectively. The plane of the "shaped structure is connected by a bolt and nut structure 8; the planes of the longitudinal beams on the front and rear sides of the rear axle frame module 4 and the longitudinal beams on both sides of the middle frame module 3 and the rear frame module 5 are planes of a "[" shaped structure respectively. Connected by ...

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Abstract

The invention relates to a design method applied to a car frame assembly structure of a two-step urban passenger car. The car frame assembly structure comprises a front-section car frame module, a front-shaft car frame module, a middle-section car frame module, a rear-axle car frame module and a back-section car frame module and is characterized in that vertical beams arranged at both sides of the front-section car frame module, the middle-section car frame module and the rear-section car frame module are in a transverse n-shaped structure, planes of vertical beams at the front side and the back side of the front-shaft car frame module are respectively connected with planes for connecting the vertical beams at both sides of the front-section car frame module and the middle-section car frame module into the transverse n-shaped structures through screw bolt and screw nut structures, and the planes of the vertical beams at the front side and the back side of the rear-axle car frame module are respectively connected with planes for connecting the vertical beams at both sides of the middle-section car frame module and the rear-section car frame module into the transverse n-shaped structure through the screw bolt and screw nut structures. The invention can solve the problem of small utilization rate of a low-floor passenger region, meanwhile, the modularized design and the remote transportation and assembly of car frame parts can be realized.

Description

technical field [0001] The invention relates to a frame structure of a two-step city bus, in particular to a design method for a frame assembly structure applied to a two-step city bus. Background technique [0002] When the floor height of the city bus is reduced from 900mm to 600mm, the floor height drops by 33%, and the time for getting on and off the bus can be saved by more than 50%. Cities have broad market prospects. At present, the frame assembly structure of the leaf spring suspension of the two-stage stepping city bus adopts pipe welding or the upper and lower lap connection structure of the longitudinal beams of each section. The existing problems and shortcomings are that the utilization rate of the low-floor passenger area is small, and it is not convenient for modules Modernize the design and realize the off-site transportation and assembly of frame parts. Contents of the invention [0003] The purpose of the present invention is to provide a design method ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D21/02
Inventor 李建鹏
Owner SHAANXI EUROSTAR AUTOMOBILE
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