CN201077482Y - Double forward shafts single rear axle type passenger car chassis - Google Patents
Double forward shafts single rear axle type passenger car chassis Download PDFInfo
- Publication number
- CN201077482Y CN201077482Y CNU2007201252791U CN200720125279U CN201077482Y CN 201077482 Y CN201077482 Y CN 201077482Y CN U2007201252791 U CNU2007201252791 U CN U2007201252791U CN 200720125279 U CN200720125279 U CN 200720125279U CN 201077482 Y CN201077482 Y CN 201077482Y
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- CN
- China
- Prior art keywords
- front axle
- assembly
- leaf spring
- frame assembly
- rocking arm
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The utility model discloses a double-front axle single-rear axle type coach chassis; wherein, two front axle assemblies are arranged on the front part of the frame assembly in parallel; the front part of the frame assembly is supported by the two front axle assemblies; a power steering gear is arranged on the front side of the first front axle assembly; the power steering gear is connected with the first front axle assembly and the second front axle assembly by steering pull rod mechanism respectively. The utility model is characterized in that the pressure of the frame and the vehicle body is relieved, the early abrasion of tire is prevented, and the requirement of fast exchange of large quantity of passengers of new momentum coach and modern urban coach is satisfied because of the structure of double-front axle assembly. The utility model has the advantages of adopting the design principles of specialization, seriation and standardization, optimization combination of prior modern and matured arts, low development cost and short development cycle, low investment cost, and satisfying the entire vehicle requirements of ride comfort, comfortableness and stability.
Description
Technical field
The utility model belongs to the passenger vehicle technical field, specifically, relates to bridge-type passenger-carrying chassis behind a kind of pair of front axle list.
Background technology
Existing city bus generally adopts single front axle list back axle form, promptly in the front portion of bus frame front axle assembly is installed, and back axle assembly is installed at the rear portion, and the forward and backward two ends of vehicle frame are supported by front axle assembly and back axle assembly respectively.City bus exchanges up and down in order to keep big flow passenger, and big aperture passenger door all need be offered in anterior and middle part, thereby the front overhang of vehicle frame need reach more than 3 meters.Because passenger vehicle adopts CNG and pneumoelectric to mix moving, oily electricity and mixes moving form, so front part of vehicle need be arranged battery, fuel gas cylinder, axle load is seriously overweight before the wheel like this; The tradition front-axle steering is single tire structure, load concentration, and vehicle frame and car body can't satisfy the needs in service life, and single tire load is excessive, also causes premature wear easily.
The utility model content
Technical problem to be solved in the utility model is to provide bridge-type passenger-carrying chassis behind a kind of two front axle lists that can effectively alleviate vehicle frame and car body pressure.
The technical solution of the utility model is as follows: bridge-type passenger-carrying chassis behind a kind of pair of front axle list, comprise frame assembly, back axle assembly, power steering and front axle assembly, wherein back axle assembly is installed in the rear portion of frame assembly, this frame assembly is a framed structure, form by longitudinal and cross beam, its key is: in the front portion of described frame assembly two front axle assemblies are installed side by side, the front portion of frame assembly is supported by these two front axle assemblies; Described power steering is positioned at the front side of first front axle assembly, and this power steering connects with first front axle assembly and second front axle assembly respectively by steering track rod mechanism.
Adopt above technical scheme, adopt two front axle assembly structures, avoided load concentration in the front portion of frame assembly; Two front axle assemblies can disperse load, and the stress transfer centrostigma is effectively alleviated vehicle frame and car body pressure; The tire fulcrum increases, and so single tire load reduces, and the premature wear of tire is effectively controlled, and when prolonging tire service life, has satisfied the demand that new type power and modern city passenger vehicle exchange the high capacity passenger fast.
In order to ensure the synchronism of double-front-axle steering, above-mentioned steering track rod mechanism is made up of steering drag link, the first front axle drag link, the first front axle rocking arm, linkage pull rod, the second front axle rocking arm and the second front axle drag link, wherein the front end of steering drag link and power steering are hinged, the lower end of the rear end of steering drag link and the first front axle rocking arm is hinged, and the upper end of the first front axle rocking arm connects by the upper end of linkage pull rod with the second front axle rocking arm; The front end of the described first front axle drag link is hinged on the first front axle rocking arm, and the rear end and first front axle assembly are hinged; The lower end of the front end of the described second front axle drag link and the second front axle rocking arm is hinged, and the rear end is hinged on second front axle assembly.
For the structure of simplifying first front axle assembly and make be connected between first front axle assembly and the frame assembly reliable, above-mentioned first front axle assembly comprises first front axle, first front tyre, first leaf spring and first bumper, wherein first front axle is positioned at the below of frame assembly, and perpendicular with chassis side rail, at two of first front axle first front tyre is installed; Described first leaf spring is positioned at the outside of chassis side rail, and the middle part of this first leaf spring is bolted on first front axle by " U " type, and the two ends of first leaf spring connect with the forward and backward support of longeron lateral surface respectively; At arranged outside first bumper of first leaf spring, the upper end of this first bumper connects with the upper bracket of longeron lateral surface, and the lower end connects with undersetting on first front axle.
For the structure of simplifying second front axle assembly and make be connected between second front axle assembly and the frame assembly reliable, above-mentioned second front axle assembly comprises second front axle, second front tyre, second leaf spring and second bumper, wherein second front axle is positioned at the below of frame assembly, and perpendicular with chassis side rail, at two of second front axle second front tyre is installed; Described second leaf spring is positioned at the outside of chassis side rail, and the middle part of this second leaf spring is bolted on second front axle by " U " type, and the two ends of second leaf spring connect with the forward and backward support of longeron lateral surface respectively; At arranged outside second bumper of second leaf spring, the upper end of this second bumper connects with the upper bracket of longeron lateral surface, and the lower end connects with undersetting on second front axle.
Beneficial effect: the utility model is changed the principle design by specialization, seriation, normalisation three, adopt existing advanced person and proven technique to be optimized combination both at home and abroad, exploitation funds and time-to-market have been saved effectively, reduce the cost that product is gone into operation, met the requirement of car load riding comfort, traveling comfort and stability.Two front axle assembly structures can effectively be alleviated vehicle frame and car body pressure, have avoided the premature wear of tire, have satisfied the demand that new type power and modern city passenger vehicle exchange the high capacity passenger fast.
Description of drawings
Fig. 1 is a front view of the present utility model.
Fig. 2 is the birds-eye view of Fig. 1.
Fig. 3 is the scheme of installation of two front axle assemblies.
Fig. 4 is that the A of Fig. 3 is to view.
Fig. 5 is that the B of Fig. 3 is to view.
Fig. 6 is that the C of Fig. 3 is to view.
Fig. 7 is for turning to the structural representation of drag link mechanism in the utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1 and Figure 2, frame assembly 1 is a framed structure, be made up of two longeron 1a that are parallel to each other and the some crossbeam 1b that are parallel to each other, and longeron 1a is vertical mutually with crossbeam 1b.Back axle assembly 2 is installed at rear portion at frame assembly 1, and the rear portion of frame assembly 1 is supported by this back axle assembly 2, and the afterbody of frame assembly 1 is installed driving engine 27, and the structure and the fit of back axle assembly 2 and driving engine 27 are same as the prior art, do not do at this and give unnecessary details.In the front portion of described frame assembly 1 two front axle assemblies 4,5 are installed side by side, the front portion of frame assembly 1 is supported by these two front axle assemblies 4,5; The position in first front axle assembly, 4 left forward sides is provided with power steering 3, and this power steering 3 is installed on the frame assembly 1, and connects with first front axle assembly 4 and second front axle assembly 5 respectively by steering track rod mechanism.
From Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and shown in Figure 6, first front axle assembly 4 is by component set-ups such as first front axle 6, first front tyre 7, first leaf spring 8 and first bumpers 9, wherein first front axle 6 is positioned at the below of frame assembly 1, and perpendicular with chassis side rail 1a, first front tyre 7 is installed at two of first front axle 6.Two first leaf springs 8 lay respectively at the outside of two chassis side rail 1a, the middle part of this first leaf spring 8 is fixed on first front axle 6 by " U " type bolt 10, the front end of first leaf spring 8 connects with the front frame 11 of longeron 1a lateral surface, the rear end of first leaf spring 8 connects with hanger assembly 28, this hanger assembly 28 is installed on the after poppet 12 by steel plate pin, and after poppet 12 is fixed in the lateral surface of longeron 1a.In the outside of two first leaf springs 8 one first bumper 9 is set respectively, this first bumper 9 is positioned at the rear of first front axle 6 and vertically arranges.The upper end of first bumper 9 connects with the upper bracket 13 of longeron 1a lateral surface, and the lower end connects with undersetting 14 on first front axle 6.
From Fig. 1, Fig. 2, Fig. 3 and as can be known in conjunction with Fig. 4, Fig. 5 and Fig. 6, second front axle assembly 5 is by component set-ups such as second front axle 15, second front tyre 16, second leaf spring 17 and second bumpers 18, wherein second front axle 15 is positioned at the below of frame assembly 1, and perpendicular with chassis side rail 1a, second front tyre 16 is installed at two of second front axle 15; Described second leaf spring 17 is positioned at the outside of chassis side rail 1a, and the middle part of this second leaf spring 17 is bolted on second front axle 15 by " U " type, and the two ends of second leaf spring 17 connect with the forward and backward support 19,20 of longeron 1a lateral surface respectively; At arranged outside second bumper 18 of second leaf spring 17, the upper end of this second bumper 18 connects with the upper bracket of longeron 1a lateral surface, and the lower end connects with undersetting on second front axle 15.
From Fig. 1, Fig. 2 and Fig. 7 further as can be known, steering track rod mechanism is made up of steering drag link 21, the first front axle drag link 22, the first front axle rocking arm 23, linkage pull rod 24, the second front axle rocking arm 25 and the second front axle drag link 26, wherein the front end of steering drag link 21 and power steering 3 are hinged, power steering connects with deflection angle adjusting mechanism 30 by turning to turning cylinder 29, and these deflection angle adjusting mechanism 30 direction of passage dish adjusting mechanisms 31 connect with bearing circle 32.The lower end of the rear end of described steering drag link 21 and the first front axle rocking arm 23 is hinged, and the upper end of the first front axle rocking arm 23 connects with the upper end of the second front axle rocking arm 25 by linkage pull rod 24; The described first front axle drag link 22 parallels with linkage pull rod 24, and the front end of the first front axle drag link 22 is hinged on the first front axle rocking arm 23, and the rear end and first front axle 6 are hinged.The described second front axle drag link 26 also parallels with linkage pull rod 24, and the lower end of the front end of the second front axle drag link 26 and the second front axle rocking arm 25 is hinged, and the rear end is hinged on second front axle 15.
Claims (4)
1. bridge-type passenger-carrying chassis behind two front axle lists, comprise frame assembly (1), back axle assembly (2), power steering (3) and front axle assembly, wherein back axle assembly (2) is installed in the rear portion of frame assembly (1), this frame assembly (1) is a framed structure, form by longeron (1a) and crossbeam (1b), it is characterized in that: two front axle assemblies (4,5) are installed side by side in the front portion of described frame assembly (1), and the front portion of frame assembly (1) is supported by these two front axle assemblies (4,5); Described power steering (3) is positioned at the front side of first front axle assembly (4), and this power steering (3) connects with first front axle assembly (4) and second front axle assembly (5) respectively by steering track rod mechanism.
2. bridge-type passenger-carrying chassis behind the according to claim 1 pair of front axle list, it is characterized in that: described steering track rod mechanism is by steering drag link (21), the first front axle drag link (22), the first front axle rocking arm (23), linkage pull rod (24), the second front axle rocking arm (25) and the second front axle drag link (26) are formed, wherein the front end of steering drag link (21) and power steering (3) are hinged, the lower end of the rear end of steering drag link (21) and the first front axle rocking arm (23) is hinged, and the upper end of the first front axle rocking arm (23) connects with the upper end of the second front axle rocking arm (25) by linkage pull rod (24); The front end of the described first front axle drag link (22) is hinged on the first front axle rocking arm (23), and rear end and first front axle assembly (4) are hinged; The lower end of the front end of the described second front axle drag link (26) and the second front axle rocking arm (25) is hinged, and the rear end is hinged on second front axle assembly (5).
3. bridge-type passenger-carrying chassis behind the according to claim 1 and 2 pair of front axle list, it is characterized in that: described first front axle assembly (4) comprises first front axle (6), first front tyre (7), first leaf spring (8) and first bumper (9), wherein first front axle (6) is positioned at the below of frame assembly (1), and perpendicular with chassis side rail (1a), at two of first front axle (6) first front tyre (7) is installed; Described first leaf spring (8) is positioned at the outside of chassis side rail (1a), the middle part of this first leaf spring (8) is fixed on first front axle (6) by " U " type bolt (10), and the two ends of first leaf spring (8) connect with the forward and backward support (11,12) of longeron (1a) lateral surface respectively; At arranged outside first bumper (9) of first leaf spring (8), the upper end of this first bumper (9) connects with the upper bracket (13) of longeron (1a) lateral surface, and the lower end connects with undersetting (14) on first front axle (6).
4. bridge-type passenger-carrying chassis behind the according to claim 1 and 2 pair of front axle list, it is characterized in that: described second front axle assembly (5) comprises second front axle (15), second front tyre (16), second leaf spring (17) and second bumper (18), wherein second front axle (15) is positioned at the below of frame assembly (1), and perpendicular with chassis side rail (1a), at two of second front axle (15) second front tyre (16) is installed; Described second leaf spring (17) is positioned at the outside of chassis side rail (1a), the middle part of this second leaf spring (17) is bolted on second front axle (15) by " U " type, and the two ends of second leaf spring (17) connect with the forward and backward support (19,20) of longeron (1a) lateral surface respectively; At arranged outside second bumper (18) of second leaf spring (17), the upper end of this second bumper (18) connects with the upper bracket of longeron (1a) lateral surface, and the lower end connects with undersetting on second front axle (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201252791U CN201077482Y (en) | 2007-09-24 | 2007-09-24 | Double forward shafts single rear axle type passenger car chassis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201252791U CN201077482Y (en) | 2007-09-24 | 2007-09-24 | Double forward shafts single rear axle type passenger car chassis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201077482Y true CN201077482Y (en) | 2008-06-25 |
Family
ID=39569539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201252791U Expired - Lifetime CN201077482Y (en) | 2007-09-24 | 2007-09-24 | Double forward shafts single rear axle type passenger car chassis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201077482Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109398480A (en) * | 2018-12-12 | 2019-03-01 | 中国重汽集团济南动力有限公司 | A kind of car steering system |
-
2007
- 2007-09-24 CN CNU2007201252791U patent/CN201077482Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101934820B (en) * | 2010-04-13 | 2012-09-12 | 重庆恒通客车有限公司 | Two-stage stepping passenger bus with front engine |
| CN109398480A (en) * | 2018-12-12 | 2019-03-01 | 中国重汽集团济南动力有限公司 | A kind of car steering system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080625 |