CN101817367A - Two-stage stepping chassis and automotive chassis overhang structure of passenger car with front-located engine - Google Patents
Two-stage stepping chassis and automotive chassis overhang structure of passenger car with front-located engine Download PDFInfo
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- CN101817367A CN101817367A CN 201010145958 CN201010145958A CN101817367A CN 101817367 A CN101817367 A CN 101817367A CN 201010145958 CN201010145958 CN 201010145958 CN 201010145958 A CN201010145958 A CN 201010145958A CN 101817367 A CN101817367 A CN 101817367A
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Abstract
The invention discloses a two-stage stepping chassis and an automotive chassis overhang structure of a passenger car provided with a front-located engine. The distance from a right longitudinal beam to the center line of an automotive chassis is smaller than that from a left longitudinal beam to the center line of the automotive chassis; the left and the right longitudinal beams are both composed of a front section, a middle section and a back section, the forebody and the after body of the left longitudinal beam are higher than the midbody of the left longitudinal beam, the forebody and the midbody of the right longitudinal beam are in the same height and lower than the after body of the right longitudinal beam; the after bodies of the left longitudinal beam and the right longitudinal beam are in the same height, the forebody of the right longitudinal beam is lower than that of the left longitudinal beam, and the part of the forebody of the right longitudinal beam corresponding to a front axle bends towards the center line direction of the automotive chassis; the first spring brackets at the front and rear ends of a left overhang frame are mounted below the forebody of the left longitudinal beam, and the second spring brackets at the front and rear ends of a right overhang frame are mounted at the right side of the forebody of the right longitudinal beam. The invention can lower the center of gravity of the whole passenger car, realize two-stage stepping for passengers of the passenger car with the front-located engine, facilitate passengers to get on or off the car, effectively shorten the time for passengers to get on and off, realize the purpose of rapidly exchanging high-capacity passengers, and simultaneously further improve the smoothness, comfortableness and stability when the whole car runs.
Description
Technical field
The invention belongs to the passenger vehicle technical field, specifically, particularly the two-stage stepping chassis of F/F passenger vehicle and vehicle frame front overhang structure.
Background technology
At present, domestic available engine forward type front overhang is driven the passenger vehicle of passenger door, and this place's vehicle frame of its chassis is flat crossbeam symmetrical structure, is subjected to front suspension and engine installation space constraint, causes on the front overhang longeron plane terrain clearance higher, is about 750mm.This arrangement form can only adopt three grades of structures of marking time could satisfy the passenger vehicle arrangement requirement, the upper and lower passenger's inconvenience of one side, and upper and lower passenger's time is longer, uses the bigger limitation of existence in quick exchange high capacity passenger's city or area; On the other hand, the center of gravity of car load is higher, can influence car load travelling comfort, traveling comfort and stability.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of F/F passenger vehicle two-stage stepping chassis and vehicle frame front overhang structure, at high speed exchange high capacity passenger.
Technical scheme of the present invention is as follows: a kind of F/F passenger vehicle two-stage stepping chassis and vehicle frame front overhang structure, comprise vehicle frame, propons, front suspension, back axle, rear suspension and bumper, wherein vehicle frame has the left and right longeron that is arranged side by side, propons is installed by left and right front suspension and spring bracket in front portion at vehicle frame, back axle is installed by left and right rear suspension and spring bracket in the rear portion of vehicle frame, and its key is: described right vertical beam to the distance of vehicle frame line of centers less than the distance of left longeron to the vehicle frame line of centers; Left and right longeron by before, during and after three sections compositions, the forward and backward body of left longeron is all than height in the left longeron, right vertical beam precursor and middle body and are lower than body behind the right vertical beam on sustained height; The back body of described left and right longeron is on sustained height, and the right vertical beam precursor is lower than left longeron precursor, and the position of the corresponding propons of right vertical beam precursor is to the direction bending of vehicle frame line of centers; First spring bracket of described left front suspension front and back ends is installed on the below of left longeron precursor, and second spring bracket of right front suspension front and back ends is installed on the right side of right vertical beam precursor.
Adopt above technical scheme, the left and right longeron of vehicle frame adopts asymmetrical design, can guarantee the installing space of F/F.Left and right longeron adopts three stage structure, and right vertical beam precursor and middle body are lower than left longeron precursor, right vertical beam is to the vehicle frame disalignment, the first spring bracket underlying is installed, the second spring bracket side is installed, realized reducing the vehicle frame right vertical beam before, the terrain clearance of middle body, reached the requirement for height that the passenger steps on the car two-stage stepping, can make things convenient for the passenger to get on and off, and effectively shorten upper and lower passenger's time; Simultaneously, the center of gravity of car load lowers, and has improved car load travelling comfort, traveling comfort and stability.The position of the corresponding propons of right vertical beam precursor is to the direction bending of vehicle frame line of centers, and installation and the motion of having satisfied right front suspension and propons do not interfere.
As preferably, the terrain clearance on plane is not more than 700mm on the described right vertical beam precursor.
In order to satisfy the needs of different automobile types, described longeron precursor is than the low 50～500mm of left longeron precursor.
All be fixed with forward and backward side bar in the left side of described left longeron precursor and the right side of right vertical beam precursor, connect by the dome-shaped truss between the forward and backward side bar of the same side, and connect by underframe between the bottom of both sides front side beam, connect by another underframe between the bottom of side bar behind the both sides.Above structure has increased the strength and stiffness of this place's vehicle frame, has satisfied the installation and the motion requirement of right front shock absorber and front axle tyre simultaneously.
For simplified structure, convenient for assembly, further improve the bonded assembly fixing, described truss has the dome-shaped moulding that is arranged side by side about two, connects by the hyphen bar between two mouldings, and the lower end of framework is fixed on the cooresponding side bar.
In the left side of described left longeron precursor left front bumper is set, the upper end of this left front bumper is hinged by bearing and left longeron precursor, and the lower end of left front bumper and left front suspension are hinged; On the right side of right vertical beam right front bumper is set, the upper end and the bearing of this right front bumper are hinged, and this bearing is fixed on the support, and support is captiveed joint with truss, and the lower end of right front bumper and right front suspension are hinged.Above structure helps front shock absorber arranges, installs, and has increased the compartment walkway clearance simultaneously, can make things convenient for passenger's quick travel in the compartment.
On a described left side, the bottom of floor side member precursor all is equipped with bump rubber, this bump rubber is positioned at the top of propons central siphon.Bump rubber plays buffering, spacing, has satisfied relative frame movement of front suspension and the spacing requirement of buffering.
Described left longeron precursor is divided into forward and backward two sections, and the leading portion of left longeron precursor is overlapped on the left side of back segment, has increased the installing space of driving engine and radiator system like this, when guaranteeing the body frame structure for automotive compactness, helps the layout of driving engine and radiator system.
The invention has the beneficial effects as follows:
1, chassis side rail adopts asymmetrical design, right vertical beam precursor and middle body are lower than left longeron precursor, reduced the terrain clearance of vehicle frame right-hand stringer precursor and middle body, realized that the F/F bus occupant steps on the car two-stage stepping, can make things convenient for the passenger to get on and off, and effectively shorten upper and lower passenger's time.
2, the car load center of gravity be can reduce, when improving quick exchange high capacity passenger purpose, car load travelling comfort, traveling comfort and stability further improved.
3, novel in design, simple in structure, assembling easily, manufacturing cost and maintenance cost are low, help applying on a large scale.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the birds-eye view of Fig. 1.
Fig. 3 is the A-A cutaway view of Fig. 1.
Fig. 4 is that the B of Fig. 2 is to view.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples:
As Fig. 1, Fig. 2, shown in Figure 3, vehicle frame has the left and right longeron 1,2 that is arranged side by side and is connected many crossbeams between two longerons in the past backward.Left and right longeron 1,2 adopts asymmetric layout, it is right vertical beam 2 arrives the vehicle frame centre line L less than left longeron 1 to the distance of vehicle frame centre line L distance, to guarantee the installing space of F/F, the left relatively longeron 1 of right vertical beam 2 is determined according to actual needs to the side-play amount of vehicle frame centre line L.Described left longeron 1 by body 1b and left longeron in left longeron precursor 1a, the left longeron after body 1c be connected in turn, the forward and backward body 1a of wherein left longeron, 1c are all than body 1b height in the left longeron, and left longeron precursor 1a is divided into forward and backward two sections, the leading portion of left side longeron precursor 1a is overlapped on the left side of back segment, to increase the installing space of driving engine and radiator system.Described right vertical beam 2 by body 2b and right vertical beam in right vertical beam precursor 2a, the right vertical beam after body 2c be connected in turn, body 2b and is lower than body 2c behind the right vertical beam in right vertical beam precursor 2a and the right vertical beam on sustained height.Back body 1c, the 2c of described left and right longeron 1,2 are on sustained height, in the right vertical beam in body 2b and the left longeron body 1b also on sustained height, and right vertical beam precursor 2a is than the low 50～500mm of left longeron precursor 1a, and the terrain clearance that right vertical beam precursor 2a goes up the plane is not more than 700mm.
As Fig. 1, Fig. 2, shown in Figure 4, in the front portion of vehicle frame propons 5 is set, the left part of this propons 5 is connected with the middle part of left front suspension 3, and the front and back ends of left front suspension 3 respectively is connected with left longeron precursor 1a by one first spring bracket 8, and first spring bracket 8 is positioned at the below of left longeron precursor 1a.The right part of propons 5 is connected with the middle part of right front suspension 4, the front and back ends of right front suspension 4 respectively is connected with right vertical beam precursor 2a by one second spring bracket 8 ', second spring bracket 8 ' is positioned at the right side of right vertical beam precursor 2a, and the position of the corresponding propons 5 of right vertical beam precursor 2a is to the direction bending of vehicle frame centre line L.On a described left side, the bottom of floor side member precursor 1a, 2a all is equipped with bump rubber 18, this bump rubber 18 is positioned at the top of propons 5 central siphons.
As Fig. 2, Fig. 3, shown in Figure 4, be provided with forward and backward side bar 9,10 in the left side of left longeron precursor 1a and the right side of right vertical beam precursor 2a, wherein front side beam 9 is positioned at the place ahead of propons 5, and back side bar 10 is positioned at the rear of propons 5.Connect by the dome-shaped truss between the forward and backward side bar 9,10 of the same side, and connect by underframe 11 between the bottom of left and right both sides front side beam, connect by another underframe 11 between the bottom of side bar behind the left and right both sides.Described truss has between dome-shaped moulding 12, two mouldings that are arranged side by side about two by many hyphen bars 13 and connects, and the lower end of framework 12 is fixed on cooresponding side bar 9 or 10.
As Fig. 1, Fig. 2, shown in Figure 4, in the left side of left longeron precursor 1a left front bumper 14 is set, the upper end of this left front bumper 14 is hinged by bearing and left longeron precursor 1a, and the lower end of left front bumper 14 and left front suspension 3 are hinged; On the right side of right vertical beam 2a right front bumper 15 is set, the upper end of this right front bumper 15 and bearing 16 are hinged, and this bearing 16 is fixed on the support 17, and support 17 is captiveed joint with the truss on the right, and the lower end of right front bumper 15 and right front suspension 4 are hinged.By left and right rear suspension 6,7 and spring bracket back axle 19 is installed at the rear portion of described vehicle frame, left rear suspension 6 is positioned at the left side of body 1c behind the left longeron, and right rear suspension 7 is positioned at the right side of body 2c behind the right vertical beam.All the other structures of the present invention are same as the prior art, do not do at this and give unnecessary details.
Claims (8)
1. F/F passenger vehicle two-stage stepping chassis and vehicle frame front overhang structure, comprise vehicle frame, propons, front suspension, back axle, rear suspension and bumper, wherein vehicle frame has the left and right longeron (1,2) that is arranged side by side, propons (5) is installed by left and right front suspension (3,4) and spring bracket in front portion at vehicle frame, back axle (19) is installed by left and right rear suspension (6,7) and spring bracket in the rear portion of vehicle frame, it is characterized in that: described right vertical beam (2) arrives the distance of vehicle frame line of centers less than left longeron (1) to the distance of vehicle frame line of centers; Left and right longeron (1,2) by before, during and after three sections compositions, the forward and backward body of left longeron (1a, 1c) is all than body (1b) height in the left longeron, right vertical beam precursor (2a) and middle body (2b) and are lower than body (2c) behind the right vertical beam on sustained height; The back body of described left and right longeron (1,2) is on sustained height, and right vertical beam precursor (2a) is lower than left longeron precursor (1a), and the position of the corresponding propons of right vertical beam precursor (2a) is to the direction bending of vehicle frame line of centers; First spring bracket (8) of described left front suspension (3) front and back ends is installed on the below of left longeron precursor (1a), and second spring bracket (8 ') of right front suspension (4) front and back ends is installed on the right side of right vertical beam precursor (2a).
2. F/F passenger vehicle according to claim 1 two-stage stepping chassis and vehicle frame front overhang structure is characterized in that: the terrain clearance that described right vertical beam precursor (2a) is gone up the plane is not more than 700mm.
3. F/F passenger vehicle according to claim 1 and 2 two-stage stepping chassis and vehicle frame front overhang structure is characterized in that: described right vertical beam precursor (2a) is than the low 50～500mm of left longeron precursor (1a).
4. F/F passenger vehicle according to claim 1 two-stage stepping chassis and vehicle frame front overhang structure, it is characterized in that: all be fixed with forward and backward side bar (9,10) in the left side of described left longeron precursor (1a) and the right side of right vertical beam precursor (2a), connect by the dome-shaped truss between the forward and backward side bar of the same side (9,10), and connect by underframe (11) between the bottom of both sides front side beam, connect by another underframe (11) between the bottom of side bar behind the both sides.
5. F/F passenger vehicle according to claim 4 two-stage stepping chassis and vehicle frame front overhang structure, it is characterized in that: described truss has the dome-shaped moulding (12) that is arranged side by side about two, connect by hyphen bar (13) between two mouldings, the lower end of framework (12) is fixed on the cooresponding side bar.
6. F/F passenger vehicle according to claim 5 two-stage stepping chassis and vehicle frame front overhang structure, it is characterized in that: left front bumper (14) is set in the left side of described left longeron precursor (1a), the upper end of this left front bumper (14) is hinged by bearing and left longeron precursor (1a), and the lower end of left front bumper (14) and left front suspension (3) are hinged; On the right side of right vertical beam (2a) right front bumper (15) is set, the upper end of this right front bumper (15) and bearing (16) are hinged, this bearing (16) is fixed on the support (17), and support (17) is captiveed joint with truss, and the lower end of right front bumper (15) and right front suspension (4) are hinged.
7. F/F passenger vehicle according to claim 1 two-stage stepping chassis and vehicle frame front overhang structure, it is characterized in that: on a described left side, the bottom of floor side member precursor (1a, 2a) all is equipped with bump rubber (18), this bump rubber (18) is positioned at the top of propons (5) central siphon.
8. according to claim 1 or 4 or 6 or 7 described F/F passenger vehicle two-stage stepping chassis and vehicle frame front overhang structure, it is characterized in that: described left longeron precursor (1a) is divided into forward and backward two sections, and the leading portion of left longeron precursor (1a) is overlapped on the left side of back segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010145958 CN101817367A (en) | 2010-04-13 | 2010-04-13 | Two-stage stepping chassis and automotive chassis overhang structure of passenger car with front-located engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010145958 CN101817367A (en) | 2010-04-13 | 2010-04-13 | Two-stage stepping chassis and automotive chassis overhang structure of passenger car with front-located engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101817367A true CN101817367A (en) | 2010-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010145958 Pending CN101817367A (en) | 2010-04-13 | 2010-04-13 | Two-stage stepping chassis and automotive chassis overhang structure of passenger car with front-located engine |
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| Country | Link |
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| CN (1) | CN101817367A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103085898A (en) * | 2013-02-01 | 2013-05-08 | 吉林大学 | Middle wheel steering articulated brotherhood of railroad trainmen (BRT) bus |
| CN103231744A (en) * | 2013-05-07 | 2013-08-07 | 吉林大学 | Four-axis single-hinge hinge type passenger car structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10218010A (en) * | 1997-02-11 | 1998-08-18 | Mitsubishi Motors Corp | Frame structure for bus |
| CN2402521Y (en) * | 1999-11-26 | 2000-10-25 | 常州长江客车集团有限公司 | Bus chassis |
| CN2642548Y (en) * | 2003-08-25 | 2004-09-22 | 安徽江淮汽车股份有限公司 | Chassis low floor board frame assembly special for public transport passenger car |
| CN2910725Y (en) * | 2006-06-28 | 2007-06-13 | 南京汽车集团有限公司 | Unsymmetric underbeam carriage assembly of chassis of public bus |
| CN101934820A (en) * | 2010-04-13 | 2011-01-05 | 重庆恒通客车有限公司 | Two-stage stepping passenger bus with front engine |
-
2010
- 2010-04-13 CN CN 201010145958 patent/CN101817367A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10218010A (en) * | 1997-02-11 | 1998-08-18 | Mitsubishi Motors Corp | Frame structure for bus |
| CN2402521Y (en) * | 1999-11-26 | 2000-10-25 | 常州长江客车集团有限公司 | Bus chassis |
| CN2642548Y (en) * | 2003-08-25 | 2004-09-22 | 安徽江淮汽车股份有限公司 | Chassis low floor board frame assembly special for public transport passenger car |
| CN2910725Y (en) * | 2006-06-28 | 2007-06-13 | 南京汽车集团有限公司 | Unsymmetric underbeam carriage assembly of chassis of public bus |
| CN101934820A (en) * | 2010-04-13 | 2011-01-05 | 重庆恒通客车有限公司 | Two-stage stepping passenger bus with front engine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103085898A (en) * | 2013-02-01 | 2013-05-08 | 吉林大学 | Middle wheel steering articulated brotherhood of railroad trainmen (BRT) bus |
| CN103085898B (en) * | 2013-02-01 | 2015-12-09 | 吉林大学 | In take turns and turn to radial type BRT bus |
| CN103231744A (en) * | 2013-05-07 | 2013-08-07 | 吉林大学 | Four-axis single-hinge hinge type passenger car structure |
| CN103231744B (en) * | 2013-05-07 | 2015-04-01 | 吉林大学 | Four-axis single-hinge hinge type passenger car structure |
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Application publication date: 20100901 |