CN103085623B - A kind of supporting bridge air suspension - Google Patents
A kind of supporting bridge air suspension Download PDFInfo
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- CN103085623B CN103085623B CN201310030933.0A CN201310030933A CN103085623B CN 103085623 B CN103085623 B CN 103085623B CN 201310030933 A CN201310030933 A CN 201310030933A CN 103085623 B CN103085623 B CN 103085623B
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Abstract
The invention discloses a kind of supporting bridge air suspension, comprising: middle height, lower than the supporting bridge of two ends height, has the front end face near its two ends, left and right and aft end face; Be rigidly connected in the hold-down arm of the split of each front end face and aft end face respectively; Be fixed on the bumper of each hold-down arm end; Be fixed on the air bag assembly near hold-down arm end.Wherein, supporting bridge is made up of rigidly connected bridge tube assembly, casing assembly and wheel limit assembly.The present invention adopts split type hold-down arm and middle height lower than the supported bridge configuration of two ends height, can reduce carried chassis frame height and reduce floor level in car.Simultaneously, supporting bridge adopts the split-type design of bridge tube assembly, casing assembly and wheel limit assembly and adopts the rigid connection of flange and bolt, and then reduce mould input cost, reduce foundry technique require and improve yield rate, reduce difficulty of processing, reduce the maintenance cost of supporting bridge, and reduce the cost of development again of mould.
Description
Technical field
The present invention relates to Vehicle Engineering technical field, particularly a kind of supporting bridge air suspension structure being applied to motor omnibus especially radial type air suspension bus.
Background technology
Compartment before and after radial type air suspension bus is connected by handing-over dish, and then its extension is taken to hold more personnel.Because its length is longer, radial type air suspension bus has except the suspension carrying of steeraxle, drive axle and steeraxle and drive axle except needing, and also needs to have supporting bridge and air suspension carrying thereof.
In the structure of radial type air suspension bus, the supporting bridge of existing use and air suspension are two kinds of separate parts respectively, and it is very clear that function therebetween divides.Wherein, supporting bridge be one complete and not there is the vehicle bridge of transmission device, air suspension then adopts an all-in-one-piece C type hold-down arm to be connected with supporting bridge, C type hold-down arm is installed air bag assembly with carrying.The mounting means of C type hold-down arm is: the middle part of air suspension C type hold-down arm is fixed under supporting bridge, and the air bag mounting seat at C type hold-down arm two ends upward and install air bag assembly to carry car body.Existing supporting bridge and air suspension structure are owing to being design respectively, and recombinant uses afterwards, heavier-weight.And existing supporting bridge bridge tube central axis and wheel limit, two ends assembly axis coaxle, height in the middle part of supporting bridge can not be reduced, thus floor level in bus car (mainly referring to the gangway-floor for passenger inside the vehicle's walking between two wheel limit assemblies) can not be reduced; In addition, traditional support bridge have employed inblock cast or overall impact style integrated molding, and its mould input cost is higher, and foundry technique requires high, and yield rate is low and difficulty of processing is large.When adjusting automobile wheel track, also needing mfg. moulding die again, significantly increasing automobile improvement cost.
Summary of the invention
In view of this, the invention provides a kind of integral support bridge air suspension, while the function of the function and air suspension that meet supporting bridge, reduce supporting bridge middle height and then to reduce floor level in car, and reduce the manufacture difficulty of processing of supporting bridge, and then reduce manufacturing cost.
Technical scheme of the present invention is achieved in that
A kind of supporting bridge air suspension, comprising:
Middle height, lower than the supporting bridge of two ends height, has the front end face near its two ends, left and right and aft end face;
Be rigidly connected in the hold-down arm of each described front end face and aft end face respectively;
Be fixed on the bumper of hold-down arm end described in each;
Be fixed on the air bag assembly near described hold-down arm end.
Further, described supporting bridge air suspension also comprises: be articulated with the longitudinal rod of described supporting bridge and oblique propelling rod.
Further, described supporting bridge comprises:
Two end faces respectively with 2 rigidly connected bridge tube assemblies of casing assembly, described bridge tube assembly middle height is lower than the height of casing assembly;
Include the casing assembly of front end face, aft end face, inner end surface and outer face, described casing assembly is rigidly connected by the end face of its inner end surface and described bridge tube assembly, and described hold-down arm is rigidly connected with the front end face of described casing assembly and aft end face respectively;
Be rigidly connected in the wheel limit assembly of the outer face of described casing assembly.
Further, described bridge tube assembly comprises:
The steel pipe body that cross-sectional plane is rectangular; And
The flange welded with described steel pipe body two ends bias respectively;
Described bridge tube assembly is rigidly connected by the flange at its two ends and the inner end surface of bolt and described casing assembly.
Further, described limit assembly of taking turns is rigidly connected by the outer face of flange and bolt and described casing assembly.
Further, described hold-down arm is rigidly connected by the front end face of bolt and described casing assembly and aft end face.
Further: described longitudinal rod is articulated with described casing assembly; Described oblique propelling rod is articulated with described bridge tube assembly.
Further, described oblique propelling rod is articulated with described steel pipe body.
Further, described longitudinal rod is 2, and described oblique propelling rod is 2.
Further, described hold-down arm is 4, and described bumper is 4, and described air bag assembly is 4.
As can be seen from such scheme, in supporting bridge air suspension of the present invention, the front end face at the two ends, left and right near described supporting bridge and aft end face fixed pedestal arm respectively.Like this, on front end face and aft end face the arm combination fixed form C character form structure, realize the function of existing air suspension C-arm, the function of air suspension is realized by the air bag assembly support frame that it is installed, simultaneously, supporting bridge in the present invention have employed bridge tube assembly, the split-type design of casing assembly and wheel limit assembly, and the steel pipe body that bridge tube assembly adopts cross-sectional plane rectangular, steel pipe body two ends are rigidly connected by the eccentric flange of welding and the casing assembly at bolt and two ends again, connect owing to adopting eccentric flange dish, make the steel pipe body height in the middle part of bridge tube assembly lower than the height of casing assembly, finally make the axis of bridge tube assembly lower than the axis of wheel limit assembly, and then make supporting bridge middle height lower than two ends height, thus floor level in car can be reduced further.
In the present invention, supporting bridge adopts the split-type design of bridge tube assembly, casing assembly and wheel limit assembly, thus the manufacturing process of supporting bridge can be changed, give up the integrated molding mode of traditional inblock cast or overall impact style, but assembled again after manufacturing bridge tube assembly, casing assembly and wheel limit assembly respectively.Like this, because from inblock cast and the punching course of a larger all-in-one-piece supporting bridge, become manufacture and the assembling process of split type wherein all parts, so mould input cost can be reduced in process of production, reduction casting and Sheet Metal Forming Technology require and improve yield rate, reduce difficulty of processing.
Also be the split-type structural because of supporting bridge in the present invention, when changing to the design of supporting bridge, the cost of development again of mould also can reduce accordingly simultaneously.Such as, when adjusting automobile wheel track, only need adjust the length of bridge tube assembly, and need not casing assembly and wheel limit assembly be adjusted simultaneously, so increase only the improvement cost for bridge tube assembly, and the improvement cost of the casing assembly saved in supporting bridge and wheel limit assembly.
In addition, owing to have employed the rigid connection of flange and bolt, make the supporting bridge in the present invention detachable, therefore can change separately when wherein certain parts occurs quality problems or is damaged, and will not change by whole supporting bridge, also reduce the maintenance cost in supporting bridge use.
Accompanying drawing explanation
Fig. 1 is the three-dimensional view of supporting bridge air suspension of the present invention;
Fig. 2 is the front elevation of supporting bridge air suspension of the present invention;
Fig. 3 is the lateral plan of supporting bridge air suspension of the present invention;
Fig. 4 is the birds-eye view of supporting bridge air suspension of the present invention.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, to develop simultaneously embodiment referring to accompanying drawing, the present invention is described in further detail.
See shown in Fig. 1 to Fig. 3, supporting bridge air suspension of the present invention comprises supporting bridge, hold-down arm 1, bumper 5 and air bag assembly 6.
Wherein said supporting bridge have employed split type design, and it comprises bridge tube assembly 3, casing assembly 4 and wheel limit assembly 2 further.
Bridge tube assembly 3 in described supporting bridge is made up of steel pipe body and 2 flanges; The cross-sectional plane of described steel pipe body is rectangular; 2 described flanges are welded in the two ends of described steel pipe body respectively.Steel pipe body is welded as eccentric welding with flange, the axis of the axis of steel pipe body and the flange at its two ends is not on same straight line, like this after bridge tube assembly 3 and casing assembly 4 are rigidly connected, can make to be in steel pipe body in the middle part of bridge tube assembly 3 as much as possible lower than casing assembly 4 and the wheel limit assembly 2 of the assembling of bridge tube assembly 3 two ends, and then make the middle height of supporting bridge lower than two ends height.
Casing assembly 4 in described supporting bridge includes front end face, aft end face, inner end surface and outer face.Inner end surface and the bridge tube assembly 3 of described casing assembly 4 are rigidly connected, and specifically, the inner end surface of described casing assembly 4 is fixed by the flange at bolt and bridge tube assembly 3 two ends, and then makes casing assembly 4 be rigidly connected in bridge tube assembly 3.Be rigidly connected by flange and bolt between the outer face of described casing assembly 4 and wheel limit assembly 2, wherein, flange welding, in wheel limit assembly 2, utilizes bolt that the flange being welded on wheel limit assembly 2 is fixed on the outside of casing assembly 4.The front end face of described casing assembly 4, aft end face are as the front end face near two ends, described supporting bridge left and right and aft end face, and what be positioned at two ends, supporting bridge left and right is described wheel limit assembly 2.Casing assembly 4 in described supporting bridge has 2, and wheel limit assembly 2 has 2, the symmetrical both sides being positioned at bridge tube assembly 3.
Above-mentioned to be rigidly connected the supporting bridge just constituted in supporting bridge air suspension of the present invention by flange and bolt by bridge tube assembly 3, casing assembly 4 and wheel limit assembly 2.Supporting bridge in the present invention have employed the mode that bridge tube assembly 3, casing assembly 4 and wheel limit assembly 2 split manufacture are assembled again, therefore reduce the difficulty of manufacturing process compared with traditional integrated supporting bridge, improve yield rate, reduce mould input cost, reduce automobile improvement cost.Again owing to have employed the rigid connection of flange and bolt, make the supporting bridge in the present invention detachable, therefore can change separately when wherein certain parts occurs quality problems or is damaged, and will not change by whole supporting bridge, also reduce the maintenance cost in supporting bridge use.
In the present invention, air suspension have employed split type structure, traditional C type hold-down arm adopted is replaced with two hold-down arms 1 laid respectively at before and after supporting bridge, two hold-down arms 1 are by being connected with casing assembly 4 front/rear end, form C font, realize the function of existing air suspension C type hold-down arm, specifically, an end face of hold-down arm 1 is rigidly connected by the front end face of bolt and casing assembly 4 or aft end face.Hold-down arm 1 is roughly bending, and its cross-sectional plane is rectangle, and is assemblied in the hold-down arm after supporting bridge 1 and extends outside the front of supporting bridge or trailing outside to supporting bridge extends.The degree of crook of hold-down arm 1 is relevant with the frame width that extended distance carries according to it.
Described in each, the end of hold-down arm 1 all fixes a bumper 5, and all fixes an air bag assembly 6 at the end near described hold-down arm 1.Be installed on bumper 5 on same hold-down arm 1 and air bag assembly 6 adjacent one another are.
In the present invention, hold-down arm 1 has 4, is installed on front end face and the aft end face of 2 casing assemblies 4 near the supporting bridge left and right sides respectively.Each hold-down arm 1 all installs bumper 5 and an air bag assembly 6, and therefore bumper 5 has 4, and air bag assembly 6 has 4, lays respectively at the left front of supporting bridge air suspension of the present invention, right front, left back and right abaft.
Supporting bridge air suspension of the present invention also has longitudinal rod 7 and oblique propelling rod 8, is connected to vehicle frame to form guiding mechanism.In embodiments of the invention, longitudinal rod 7 is articulated with the casing assembly 4 of supporting bridge, all hinged longitudinal rod 7 of 2, left and right casing assembly 4, and the quantity of longitudinal rod 7 is 2; Oblique propelling rod 8 is articulated with the steel pipe body of supporting bridge jackshaft pipe assembly 3, and the quantity of oblique propelling rod 8 is also 2.
In the supporting bridge air suspension of the invention described above, supporting bridge have employed bridge tube assembly 3, the split-type design of casing assembly 4 and wheel limit assembly 2, and the steel pipe body that bridge tube assembly 3 adopts cross-sectional plane rectangular, steel pipe body two ends are rigidly connected by the eccentric flange of welding and the casing assembly 4 at bolt and two ends again, make the steel pipe body height in the middle part of bridge tube assembly 3 lower than the height of casing assembly 4, also make the height of the axis of bridge tube assembly 3 more lower than the axis height of wheel limit assembly 2, and then make supporting bridge middle height lower than two ends height, thus floor level in car can be reduced.
Because the supporting bridge in the present invention adopts the split-type design of bridge tube assembly 3, casing assembly 4 and wheel limit assembly 2, thus the manufacturing process of supporting bridge can be changed, give up the integrated generation type of traditional inblock cast mode, but assemble again after manufacturing bridge tube assembly 3, casing assembly 4 and wheel limit assembly 2 respectively.Like this, just from the inblock cast process of a larger all-in-one-piece supporting bridge, manufacture and the assembling process of split type all parts is become, so mould input cost can be reduced in process of production, reduce foundry technique require and improve yield rate, reduce difficulty of processing.
Also be that when changing to the design of supporting bridge, the cost of development again of mould also can reduce accordingly because the split-type structural of the supporting bridge in the present invention simultaneously.Such as, when adjusting automobile wheel track, only can need adjust the length of bridge tube assembly 3, and need not casing assembly 4 and wheel limit assembly 2 be adjusted simultaneously, so increase only the improvement cost for bridge tube assembly 3, and the improvement cost of the casing assembly 4 saved in supporting bridge and wheel limit assembly 2.
In addition, owing to have employed the rigid connection of flange and bolt, the supporting bridge made is detachable, therefore can change separately when wherein certain parts (bridge tube assembly 3, casing assembly 4 or wheel limit assembly 2) occur quality problems or are damaged, and will not change by whole supporting bridge, also reduce the maintenance cost in supporting bridge use.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (10)
1. a supporting bridge air suspension, is characterized in that, comprising:
Middle height, lower than the supporting bridge of two ends height, has the front end face near its two ends, left and right and aft end face;
Be rigidly connected in the hold-down arm of each described front end face and aft end face respectively;
Be fixed on the bumper of hold-down arm end described in each;
Be fixed on the air bag assembly near described hold-down arm end.
2. supporting bridge air suspension according to claim 1, is characterized in that, described supporting bridge air suspension also comprises: be articulated with the longitudinal rod of described supporting bridge and oblique propelling rod.
3. supporting bridge air suspension according to claim 2, is characterized in that, described supporting bridge comprises:
Two end faces respectively with 2 rigidly connected bridge tube assemblies of casing assembly, described bridge tube assembly middle height is lower than the height of casing assembly;
Include the casing assembly of front end face, aft end face, inner end surface and outer face, described casing assembly is rigidly connected by the end face of its inner end surface and described bridge tube assembly, and described hold-down arm is rigidly connected with the front end face of described casing assembly and aft end face respectively;
Be rigidly connected in the wheel limit assembly of the outer face of described casing assembly.
4. supporting bridge air suspension according to claim 3, is characterized in that, described bridge tube assembly comprises:
The steel pipe body that cross-sectional plane is rectangular; And
The flange welded with described steel pipe body two ends bias respectively;
Described bridge tube assembly is rigidly connected by the flange at its two ends and the inner end surface of bolt and described casing assembly.
5. supporting bridge air suspension according to claim 3, is characterized in that:
Described limit assembly of taking turns is rigidly connected by the outer face of flange and bolt and described casing assembly.
6. supporting bridge air suspension according to claim 3, is characterized in that, described hold-down arm is rigidly connected by the front end face of bolt and described casing assembly and aft end face.
7. supporting bridge air suspension according to claim 3, is characterized in that:
Described longitudinal rod is articulated with described casing assembly;
Described oblique propelling rod is articulated with described bridge tube assembly.
8. supporting bridge air suspension according to claim 4, is characterized in that:
Described oblique propelling rod is articulated with described steel pipe body.
9. supporting bridge air suspension according to claim 2, is characterized in that:
Described longitudinal rod is 2, and described oblique propelling rod is 2.
10. supporting bridge air suspension according to claim 1 and 2, is characterized in that: described hold-down arm is 4, and described bumper is 4, and described air bag assembly is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310030933.0A CN103085623B (en) | 2013-01-25 | 2013-01-25 | A kind of supporting bridge air suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310030933.0A CN103085623B (en) | 2013-01-25 | 2013-01-25 | A kind of supporting bridge air suspension |
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| Publication Number | Publication Date |
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| CN103085623A CN103085623A (en) | 2013-05-08 |
| CN103085623B true CN103085623B (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310030933.0A Active CN103085623B (en) | 2013-01-25 | 2013-01-25 | A kind of supporting bridge air suspension |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114132130A (en) * | 2021-09-30 | 2022-03-04 | 山东力得汽车科技股份有限公司 | Cast type guide arm for air suspension |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0474331A2 (en) * | 1990-09-07 | 1992-03-11 | The Boler Company. | Lightweight beam suspension system |
| CN2928560Y (en) * | 2006-04-29 | 2007-08-01 | 北京柯布克科技开发有限公司 | Air suspension frame structure with electric air compressor device |
| US7690663B2 (en) * | 1998-07-29 | 2010-04-06 | Angela Kate Haire | Vehicle suspension with linked air bags |
| CN201511772U (en) * | 2009-09-03 | 2010-06-23 | 佛山市永力泰车轴有限公司 | Trailer air suspension assembly |
| CN102729762A (en) * | 2012-05-31 | 2012-10-17 | 苏州奥杰汽车工业有限公司 | Front air suspension of passenger cars |
| CN102765306A (en) * | 2011-05-06 | 2012-11-07 | 漳州昌源车桥有限公司 | Air bag air suspension rear axle for passenger coach |
| CN203093666U (en) * | 2013-01-25 | 2013-07-31 | 中国公路车辆机械有限公司 | Pneumatic suspension frame with supporting axle |
-
2013
- 2013-01-25 CN CN201310030933.0A patent/CN103085623B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0474331A2 (en) * | 1990-09-07 | 1992-03-11 | The Boler Company. | Lightweight beam suspension system |
| US7690663B2 (en) * | 1998-07-29 | 2010-04-06 | Angela Kate Haire | Vehicle suspension with linked air bags |
| CN2928560Y (en) * | 2006-04-29 | 2007-08-01 | 北京柯布克科技开发有限公司 | Air suspension frame structure with electric air compressor device |
| CN201511772U (en) * | 2009-09-03 | 2010-06-23 | 佛山市永力泰车轴有限公司 | Trailer air suspension assembly |
| CN102765306A (en) * | 2011-05-06 | 2012-11-07 | 漳州昌源车桥有限公司 | Air bag air suspension rear axle for passenger coach |
| CN102729762A (en) * | 2012-05-31 | 2012-10-17 | 苏州奥杰汽车工业有限公司 | Front air suspension of passenger cars |
| CN203093666U (en) * | 2013-01-25 | 2013-07-31 | 中国公路车辆机械有限公司 | Pneumatic suspension frame with supporting axle |
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| CN103085623A (en) | 2013-05-08 |
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