CN203864803U - Double-rear-axle type heavy truck frame - Google Patents
Double-rear-axle type heavy truck frame Download PDFInfo
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- CN203864803U CN203864803U CN201420285864.8U CN201420285864U CN203864803U CN 203864803 U CN203864803 U CN 203864803U CN 201420285864 U CN201420285864 U CN 201420285864U CN 203864803 U CN203864803 U CN 203864803U
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- longitudinal beam
- right vertical
- vertical beam
- left longeron
- segment
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Abstract
The utility model discloses a double-rear-axle type heavy truck frame, and relates to the technical field of automobile manufacturing. The double-rear-axle type heavy truck automobile frame comprises a left longitudinal beam and a right longitudinal beam which are divided into a front segment, a transition segment and a rear segment. The outer side distance between the left longitudinal beam and the right longitudinal beam in the front segment is 1080 millimeters. The outer side distance between the left longitudinal beam and the right longitudinal beam in the rear segment is 850 millimeters. A front seal plate and an engine front overhanging bent beam are sequentially arranged on the front segment. A first middle cross beam, a second middle cross beam, a balance overhanging cross beam and a rear cross beam are sequentially arranged on the rear segment. The two ends of the front seal plate are connected with the left longitudinal beam and the right longitudinal beam through a cab front overhanging support. The two ends of the engine front overhanging bent beam are connected with the left longitudinal beam and the right longitudinal beam through a plate spring base respective after being connected with middle supports. The two ends of the first middle cross beam, the two ends of the second middle cross beam, the two ends of the balance overhanging cross beam and the two ends of the rear cross beams are connected with the left longitudinal beam and the right longitudinal beam respectively through connection plates respectively. The double-rear-axle type heavy truck frame can solve the problems that the truck fame is large in total body mass, low in loading quality, and thus poor in total body fuel economy.
Description
Technical field
The utility model relates to field of automobile, especially a kind of vehicle frame for heavy-duty cargo truck.
Background technology
Automobile chassis frame is the basic component of automobile, traditional automobile chassis frame is two back axle truck frames particularly, general left and right longeron, left and right longitudinal beam reinforcing plate and some riveting transverse beams or the bolt of adopting connects and composes loading chassis, each to driving engine, operator's compartment etc. principal assembly is connected in aggregates, this vehicle frame generally all does orthogonal or trapezoidal, is arranged in vehicle body bottommost; Heavy-duty automobile frame is as substrate and the main stressed member of car load, it is the carrier that connects other assemblies and parts, in use not only to bear the weight load of various devices, also to bear from the various load inside and outside automobile, and the road complicated impact load causing such as concavo-convex, bending.Prior art heavy vehicle frame is mainly made up of two longerons, two longitudinal beam reinforcing plates and several crossbeam, mainly considers that bending strength and torsional strength, moment of deflection are mainly to be born by longeron and crossbeam when design.The vehicle frame of the two back axle HD truck of prior art is in order to ensure bending strength and torsional strength, and vehicle frame entirety is done greatlyr, causes because complete vehicle quality causes fuel economy poor greatly, and loading mass is few.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of two back axle truck frames, and it is large that it can solve automobile chassis frame total quality, causes the poor and few problem of loading mass of car load fuel economy.
In order to address the above problem, the technical solution of the utility model is: this pair of back axle truck frame, include left longeron and right vertical beam, and described left longeron and described right vertical beam are divided into three sections: leading portion, transition phase and back segment; Between left longeron described in described leading portion and described right vertical beam, outer lateral extent is D, D=1080 millimeter; Between left longeron described in described back segment and described right vertical beam, outer lateral extent is d, and d=850 millimeter connects described back segment after connecing described leading portion before described transition phase; Described leading portion is disposed with front shrouding, engine front overhang camber beam; Described back segment is disposed with the first intermediate transverse girder, the second intermediate transverse girder, equalizing suspension system crossbeam and after cross member; Described front shrouding two ends are put bearing by cabin front suspension and are connected with left longeron and right vertical beam respectively; After being connected with midship mounting, described engine front overhang camber beam two ends are connected with left longeron and right vertical beam respectively by spring block again; Described the first intermediate transverse girder, the second intermediate transverse girder and equalizing suspension system crossbeam are all connected with left longeron and right vertical beam respectively by connecting panel with after cross member two ends.
In technique scheme, more specifically scheme can also be: described left longeron and right vertical beam are 8 millimeters thick, and it is highly H that the steel plate that yield limit is greater than 700MPa is made, top airfoil width is A, the trough girder that lower aerofoil width is B, wherein: H=282 millimeter, A=80 millimeter, B=85 millimeter; Described the first intermediate transverse girder, the second intermediate transverse girder, equalizing suspension system crossbeam and after cross member are the trench structure steel that yield limit is greater than 700MPa; Described connecting panel is the L-type structural steel that yield limit is greater than 700MPa.
Owing to adopting technique scheme, the utlity model has following beneficial effect:
1. vehicle frame is pincerlike structure, and front end is outer wide 1080 millimeters, wide 850 millimeters or 860 millimeters outside rear end, can meet the arrangement requirement of high-powered engine, large scale water tank etc., and ensure the general of other systematic part.
2. chassis side rail adopts 8 millimeters thick, and it is highly 282 millimeters that the steel plate that yield limit is greater than 700MPa is made, and top airfoil width is 80 millimeters, the trough girder that lower aerofoil width is 85, and bending resistant section coefficient is large, and intensity is good.
3. the steel plate that intermediate transverse girder, equalizing suspension system crossbeam, after cross member adopt yield limit to be greater than 700MPa is made, trench structure, and simple in structure, lightweight, intensity is high.
4. the steel plate that connecting panel adopts yield limit to be greater than 700MPa is made, L-type structure, and simple in structure, lightweight, intensity is high.
5. owing to adopting advanced method to be optimized design, and in conjunction with using high strength material, can cancel brace panel inside longeron, reduce crossbeam and connecting panel thickness, frame assembly weight amounts to and reduces about 250kg, can effectively improve the poor and few problem of loading mass of fuel economy.
Brief description of the drawings
Fig. 1 is the utility model front view.
Fig. 2 is the utility model birds-eye view.
Fig. 3 is the utility model longeron cross-sectional structure schematic diagram.
Number in the figure is expressed as: 1, left longeron; 2, right vertical beam; 3, front shrouding; 4, engine front overhang camber beam; 5, the first intermediate transverse girder; 6, the second intermediate transverse girder; 7, equalizing suspension system crossbeam; 8, after cross member; 9, connecting panel; 10, cabin front suspension is put bearing; 11, spring block; 12, midship mounting.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated:
Two back axle truck frames shown in Fig. 1 and Fig. 2, include left longeron 1 and right vertical beam 2; Left longeron 1 and right vertical beam 2 are divided into three sections: leading portion, transition phase and back segment; In leading portion, between left longeron 1 and right vertical beam 2, outer lateral extent is D, D=1080 millimeter; In back segment, between left longeron 1 and right vertical beam 2, outer lateral extent is d, and d=850 millimeter connects described back segment after connecing described leading portion before described transition phase; Leading portion has been disposed with front shrouding 3, engine front overhang camber beam 4, and back segment is disposed with the first intermediate transverse girder 5, the second intermediate transverse girders 6, equalizing suspension system crossbeam 7 and after cross member 8; Front shrouding 3 two ends are put bearing 10 by cabin front suspension and are connected with left longeron 1 and right vertical beam 2 bolts respectively; Engine front overhang camber beam 4 two ends are connected with left longeron 1 and right vertical beam 2 use rivets respectively by spring block 11 after being connected with midship mounting 12 rivets again; The first intermediate transverse girder 5, the second intermediate transverse girders 6 and equalizing suspension system crossbeam 7 are all connected with left longeron 1 and right vertical beam 2 rivets respectively by connecting panel 9 with after cross member 8 two ends.
Left longeron 1 and right vertical beam 2 all adopt 8 millimeters thick, and it is highly H that the steel plate that yield limit is greater than 700MPa is made, and top airfoil width is A, the trough girder that lower aerofoil width is B, as shown in Figure 3; Wherein: H=282 millimeter, A=80 millimeter, B=85 millimeter.
The first intermediate transverse girder 5, the second intermediate transverse girder 6, equalizing suspension system crossbeam 7 and after cross member 8 are trench structure, and the steel plate compacting that adopts yield limit to be greater than 700MPa forms, and simple in structure, intensity is high, lightweight, and commonality is good.
Connecting panel 9 is L-type structure, and the steel plate compacting that adopts yield limit to be greater than 700MPa forms, and simple in structure, intensity is high, lightweight, and commonality is high.
This vehicle frame is pincerlike structure, can meet the arrangement requirement of high-powered engine, large scale water tank etc., and ensure the general of other systematic part.
Claims (2)
1. two back axle truck frames, include left longeron (1) and right vertical beam (2), it is characterized in that: described left longeron (1) and described right vertical beam (2) are divided into three sections: leading portion, transition phase and back segment; Between left longeron described in described leading portion (1) and described right vertical beam (2), outer lateral extent is D, D=1080 millimeter; Between left longeron described in described back segment (1) and described right vertical beam (2), outer lateral extent is d, and d=850 millimeter connects described back segment after connecing described leading portion before described transition phase; Described leading portion is disposed with front shrouding (3), engine front overhang camber beam (4); Described back segment is disposed with the first intermediate transverse girder (5), the second intermediate transverse girder (6), equalizing suspension system crossbeam (7) and after cross member (8); Described front shrouding (3) two ends are put bearing (10) by cabin front suspension and are connected with left longeron (1) and right vertical beam (2) respectively; Described engine front overhang camber beam (4) two ends are connected with left longeron (1) and right vertical beam (2) respectively by spring block (11) after being connected with midship mounting (12) again; Described the first intermediate transverse girder (5), the second intermediate transverse girder (6) and equalizing suspension system crossbeam (7) are all connected with left longeron (1) and right vertical beam (2) respectively by connecting panel (9) with after cross member (8) two ends.
2. according to claim 1 pair of back axle truck frame, it is characterized in that: described left longeron (1) and right vertical beam (2) are 8 millimeters thick, it is highly H that the steel plate that yield limit is greater than 700MPa is made, top airfoil width is A, lower aerofoil width is the trough girder of B, wherein: H=282 millimeter, A=80 millimeter, B=85 millimeter; Described the first intermediate transverse girder (5), the second intermediate transverse girder (6), equalizing suspension system crossbeam (7) and after cross member (8) are the trench structure steel that yield limit is greater than 700MPa; Described connecting panel (9) is greater than the L-type structural steel of 700MPa for yield limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420285864.8U CN203864803U (en) | 2014-05-30 | 2014-05-30 | Double-rear-axle type heavy truck frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420285864.8U CN203864803U (en) | 2014-05-30 | 2014-05-30 | Double-rear-axle type heavy truck frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203864803U true CN203864803U (en) | 2014-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420285864.8U Active CN203864803U (en) | 2014-05-30 | 2014-05-30 | Double-rear-axle type heavy truck frame |
Country Status (1)
| Country | Link |
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| CN (1) | CN203864803U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104648477A (en) * | 2014-05-30 | 2015-05-27 | 东风柳州汽车有限公司 | Double-rear-axle truck frame |
| CN113682376A (en) * | 2021-08-26 | 2021-11-23 | 东风商用车有限公司 | Width-variable commercial vehicle frame assembly with wide front part and narrow back part |
-
2014
- 2014-05-30 CN CN201420285864.8U patent/CN203864803U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104648477A (en) * | 2014-05-30 | 2015-05-27 | 东风柳州汽车有限公司 | Double-rear-axle truck frame |
| CN113682376A (en) * | 2021-08-26 | 2021-11-23 | 东风商用车有限公司 | Width-variable commercial vehicle frame assembly with wide front part and narrow back part |
| CN113682376B (en) * | 2021-08-26 | 2022-10-14 | 东风商用车有限公司 | Width-variable commercial vehicle frame assembly with wide front part and narrow back part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |