CN101224759B - Low floor passenger-carrying chassis - Google Patents

Low floor passenger-carrying chassis Download PDF

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Publication number
CN101224759B
CN101224759B CN2008100137691A CN200810013769A CN101224759B CN 101224759 B CN101224759 B CN 101224759B CN 2008100137691 A CN2008100137691 A CN 2008100137691A CN 200810013769 A CN200810013769 A CN 200810013769A CN 101224759 B CN101224759 B CN 101224759B
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China
Prior art keywords
chassis
suspension system
crossbeam
chassis frame
shockproof suspension
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CN2008100137691A
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CN101224759A (en
Inventor
谢镕安
王瑷国
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SHANGHAI ZHONGSHANG AUTOMOBILE TECHNOLOGY Co Ltd
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SHANGHAI ZHONGSHANG AUTOMOBILE TECHNOLOGY Co Ltd
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Priority to CN2008100137691A priority Critical patent/CN101224759B/en
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Abstract

The invention relates to a coach chassis with low floor and belongs to the technical field of car chassis structure. The coach chassis with low floor is characterized in that a cross beam of a chassis frame crosses over a back-bridge shockproof suspension system and a front-bridge shockproof suspension system, the chassis frame is a fully-integral girder chassis frame, the lower end of the back-bridge shockproof suspension system is connected with a trailer of shockproof suspension systems, and the upper end is fixed with the cross beam of the chassis frame; the upper end of the front-bridge shockproof suspension system is fixed with the cross beam of the chassis frame, and the lower end is connected with a front bridge; a first-level step and a floor of a coach carriage are positioned on the same plane, and the rear of the front bridge is taken as a front door entry. The fully-integral girder chassis frame with ultra-low floor of the invention leads the front door to be arranged in the rear of the front bridge and the first-level step and the floor of the coach carriage to be positioned on the same plane, thus improving travelling comfort; the chassis has simple assembly, convenient disassembly and maintenance; the invention has low gravity center, good operation performance and high safety coefficient, as well as driving smoothness, good shockproof effect and long service life.

Description

Low floor passenger-carrying chassis
One, technical field
The present invention relates to low floor passenger-carrying chassis, belong to the vehicle chassis technical field of structures.
Two, background technology
At present, passenger-carrying chassis is higher relatively apart from ground, need could arrive above the passenger-carrying chassis the higher center of gravity of also relatively having raised passenger vehicle in chassis through two, three grades of steps.
The front view of prior art passenger-carrying chassis, birds-eye view as shown in Figure 1 and Figure 2, the side of passenger-carrying chassis 11 is fixed with I-shaped and hangs 12, I-shaped hangs 12 and connects steel plate 13, be connected to propons, back axle by steel plate 13, the side of bridge shockproof suspension system before and after the passenger-carrying chassis crossbeam is positioned at, the stressed side that is positioned at the shockproof suspension system of passenger-carrying chassis crossbeam, stressed for a long time, passenger-carrying chassis easily produces distortion, influences the chassis life-span.
Three, summary of the invention
The object of the invention is to solve above passenger-carrying chassis problem of higher, provide a kind of to need just to arrive in the passenger car above the floor, relatively to reduce the passenger vehicle center of gravity through the one-level step, passenger-carrying chassis crossbeam stressed is positioned at top, the low floor passenger-carrying chassis that the chassis life-span is long of shockproof suspension system.
Low floor passenger-carrying chassis of the present invention, comprise the longeron, the crossbeam that constitute chassis frame 4, crossbeam and longeron are fixed together, form osed top shelf structure that spreads out, its special character is that the crossbeam of chassis frame 4 is the full posture chassis frame that spreads out that carries across back axle shockproof suspension system 1, propons shockproof suspension system 7 tops, back axle shockproof suspension system 1 lower end connects shockproof suspension system bracket 3, and upper end and chassis frame 4 crossbeams are fixed; Propons shockproof suspension system 7 upper ends and chassis frame 4 crossbeams are fixed, and the lower end is connected with propons; The propons rear end is made as the Front entrance position, and the floor is same plane in one-level step and the passenger car, makes passenger one get on the bus and is smooth passage;
The crossbeam width of above-mentioned chassis frame 4 is greater than the crossbeam height, strengthen vehicle frame carrying dynamics, crossbeam is connected across the top of back axle shockproof suspension system 1 and propons shockproof suspension system 7, and crossbeam is captiveed joint with the pedestal of propons shockproof suspension system 7 with back axle shockproof suspension system 1 by bolt 6;
The width of chassis frame 4 crossbeams is 1.5-3.0 a times of crossbeam height;
Back axle shockproof suspension system 1, propons shockproof suspension system 7 are damping spring suspension or air bag suspension.
The present invention is flat expanded letter, long wheelbase, non-leaf spring suspension type low floor passenger-carrying chassis, super-low floor, the full posture underframe that spreads out that carries, chassis frame is positioned at shockproof suspension system top, and the chassis is stressed to be uniformly distributed in above the shockproof suspension system, the chassis is not yielding, and the life-span is long; Compare with the day bus chassis,, make passenger one get on the bus and be smooth passage, improved the traveling comfort of taking because the Qianmen is placed the propons rear end; It is convenient that this low chassis is installed disassembled simply, is convenient to maintenance; Because the low passenger vehicle that makes in chassis is crossed curved stablizing, center of gravity is low, and handling is good, the safety factor height; Low chassis has reduced flowing through of automobile bottom air, has increased the downforce in travelling, and has improved the riding comfort of city bus, and damping effect is good, long service life.
Four, description of drawings
Fig. 1: be the front view of prior art passenger-carrying chassis;
Fig. 2: be the birds-eye view of prior art passenger-carrying chassis;
Fig. 3: be specific embodiment of the invention passenger-carrying chassis and passenger vehicle assembly relation structural representation;
Fig. 4: be the birds-eye view of specific embodiment of the invention low floor passenger-carrying chassis.
Five, the specific embodiment
Followingly provide the specific embodiment of the present invention, be used for formation of the present invention is further specified with reference to accompanying drawing 3-4.
The low floor passenger-carrying chassis of present embodiment, comprise the longeron, the crossbeam that constitute chassis frame 4, crossbeam and longeron are fixed together, form osed top shelf structure that spreads out, the crossbeam of chassis frame 4 is across back axle shockproof suspension system 1, propons shockproof suspension system 7 tops, be the full posture chassis frame that spreads out that carries, back axle shockproof suspension system 1 lower end connects shockproof suspension system bracket 3, and upper end and chassis frame 4 crossbeams are fixed; Propons shockproof suspension system 7 upper ends and chassis frame 4 crossbeams are fixed, and the lower end is connected with propons; The propons rear end is made as the Front entrance position, and the floor is same plane in one-level step and the passenger car, makes passenger one get on the bus and is smooth passage; The crossbeam width of chassis frame 4 is greater than the crossbeam height, strengthen vehicle frame carrying dynamics, crossbeam is connected across the top of back axle shockproof suspension system 1 and propons shockproof suspension system 7, and crossbeam is captiveed joint with the pedestal of propons shockproof suspension system 7 with back axle shockproof suspension system 1 by bolt 6; The width of chassis frame 4 crossbeams is 1.5-3.0 a times of crossbeam height; Back axle shockproof suspension system 1, propons shockproof suspension system 7 are damping spring suspension or air bag suspension.
The passenger-carrying chassis of present embodiment is super-low floor, the full posture underframe that spreads out that carries, and chassis frame is positioned at shockproof suspension system top, and the chassis is stressed to be uniformly distributed in above the shock mitigation system, and the chassis is not yielding, and the life-span is long; Comparing with the day bus chassis has following advantage:
1, this low chassis makes passenger one get on the bus and is smooth passage because the Qianmen is placed the propons rear end, and hommization has been given prominence in the design on this chassis, and the design on floor, chassis " low " has fully shown and the theory of this humanistic care improved the traveling comfort of taking.
2, owing to reduced chassis height, cancelled the car door step, its Qianmen and place, back door are all concordant with floor in the car, not only take turns Wheel-chair and perambulator and all can pass in and out in the car easily, and made things convenient for the elderly to get on or off the bus, and this design has taken into full account passenger's needs.
3, this low chassis is installed disassembled simply conveniently, is convenient to maintenance.
4, because the low passenger vehicle that makes in chassis is crossed curved stablizing, and center of gravity is low, handling is good, the safety factor height.
5, low chassis has reduced flowing through of automobile bottom air, has increased the downforce in travelling, and has improved the riding comfort of city bus, and damping effect is good.
6, the long service life of this low chassis.
7, this low chassis cost simple in structure is low.

Claims (4)

1. low floor passenger-carrying chassis, comprise the longeron, the crossbeam that constitute chassis frame (4), crossbeam and longeron are fixed together, form osed top shelf structure that spreads out, it is characterized in that the crossbeam of chassis frame (4) is the full posture chassis frame that spreads out that carries across in back axle shockproof suspension system (1), propons shockproof suspension system (7) top, back axle shockproof suspension system (1) lower end connects shockproof suspension system's bracket (3), and upper end and chassis frame (4) crossbeam is fixed; Propons shockproof suspension system (7) is fixed with chassis frame (4) crossbeam the upper end, and the lower end is connected with propons; The propons rear end is made as the Front entrance position, and the floor is same plane in one-level step and the passenger car.
2. according to the described low floor passenger-carrying chassis of claim 1, the crossbeam width that it is characterized in that chassis frame (4) is greater than the crossbeam height, crossbeam is connected across the top of back axle shockproof suspension system (1) and propons shockproof suspension system (7), and crossbeam is captiveed joint with the pedestal of propons shockproof suspension system (7) with back axle shockproof suspension system (1) by bolt (6).
3. according to the described low floor passenger-carrying chassis of claim 2, the width that it is characterized in that chassis frame (4) crossbeam is 1.5-3.0 a times of crossbeam height.
4. according to the described low floor passenger-carrying chassis of claim 1, it is characterized in that back axle shockproof suspension system (1), propons shockproof suspension system (7) are damping spring suspension or air bag suspension.
CN2008100137691A 2008-01-11 2008-01-11 Low floor passenger-carrying chassis Active CN101224759B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2008100137691A CN101224759B (en) 2008-01-11 2008-01-11 Low floor passenger-carrying chassis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2008100137691A CN101224759B (en) 2008-01-11 2008-01-11 Low floor passenger-carrying chassis

Publications (2)

Publication Number Publication Date
CN101224759A CN101224759A (en) 2008-07-23
CN101224759B true CN101224759B (en) 2011-09-28

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102530571A (en) * 2011-12-28 2012-07-04 兰风秋 All-hydraulic tracked reclaimer and charger
CN105059401A (en) * 2015-07-31 2015-11-18 云南航天神州汽车有限公司 Electric van-type vehicle with one-step low floor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2619815Y (en) * 2003-04-30 2004-06-09 杭州火烈鸟绿色动力研究所 Chassis special for ultra-low floor pure electric vehicle
CN2621979Y (en) * 2003-04-24 2004-06-30 湘潭电机股份有限公司 Low floor, double-power supply trolley bus
CN2837127Y (en) * 2005-04-26 2006-11-15 东风汽车悬架弹簧有限公司 A rear composite air suspension frame assembly for coach chassis
CN201189886Y (en) * 2008-01-11 2009-02-04 上海中上汽车科技有限公司 Low-floor coach chassis

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2621979Y (en) * 2003-04-24 2004-06-30 湘潭电机股份有限公司 Low floor, double-power supply trolley bus
CN2619815Y (en) * 2003-04-30 2004-06-09 杭州火烈鸟绿色动力研究所 Chassis special for ultra-low floor pure electric vehicle
CN2837127Y (en) * 2005-04-26 2006-11-15 东风汽车悬架弹簧有限公司 A rear composite air suspension frame assembly for coach chassis
CN201189886Y (en) * 2008-01-11 2009-02-04 上海中上汽车科技有限公司 Low-floor coach chassis

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