CN202986728U - Rear balance suspension system of heavy-duty automobile - Google Patents
Rear balance suspension system of heavy-duty automobile Download PDFInfo
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- CN202986728U CN202986728U CN 201220621871 CN201220621871U CN202986728U CN 202986728 U CN202986728 U CN 202986728U CN 201220621871 CN201220621871 CN 201220621871 CN 201220621871 U CN201220621871 U CN 201220621871U CN 202986728 U CN202986728 U CN 202986728U
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- balance shaft
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- balance
- suspension system
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Abstract
The utility model relates to a rear balance suspension system of a heavy-duty automobile. The rear balance suspension system of the heavy-duty automobile can improve bearing capacity remarkably, all components are reasonable in structure and stable in connection, and the components are not prone to generate fatigue break. The rear balance suspension system of the heavy-duty automobile comprises a casting beam assembly and a balance shaft assembly, the casing beam assembly comprises an integrated casing beam, an upper connecting plate and a lower connecting plate, the integrated casting beam comprises a top plate, a bottom plate, side plates for connecting the ends of the top plate and the bottom plate and being perpendicular to the top plate and the bottom plate and a vertical plate for connecting the top plate, the bottom plate and the middles of the two side plates to enable a longitudinal section and a horizontal section of the beam to be I-shaped sections, and two X-shaped reinforcing ribs are arranged between the front surface of the vertical plate and the top plate and between the rear surface of the vertical plate and the bottom plate. Connecting flange surfaces of balance shaft supports are connected with a connecting flange surface of an auxiliary balance shaft, and the bottoms of the two balance shaft supports are connected together through the auxiliary balance shaft.
Description
Technical field
The utility model relates to a kind of automobile-used suspension system, relates in particular to the back balance suspension system on a kind of heavy motor vehicle.
Background technology
In prior art, adopt the heavy motor vehicle back balance suspension system of integral type balance shaft to have the advantages that rigidity is large, load-carrying capacity is strong, a large amount of use in engineering dump truck type etc. needs on the larger load of carrying and complex road condition vehicle.As shown in Figure 1, this back balance suspension system comprises integral type balance shaft 2 and two balance shaft supports 1 ' fixed thereon, each is connected two axle heads of balance shaft with a balance shaft support formation transition fit, and the rotation by locating dowel pin limiting balance axle relative equilibrium bracing strut, thereby consist of balance shaft assembly.Two channel crossbars 6 ' that the cross member of frame main body that this suspension system is used is installed as backrest, in two channel crossbars, each riveted joint has two propelling rod supports 5 ' that are used for fixing upper thrust rod, and channel crossbar is a crossbeam assembly by upper junction plate 4 ' and lower connecting plate 3 ' riveted joint.By using a midship mounting 7 ' that crossbeam assembly, vehicle frame, balance shaft assembly and stay bearing plate are linked together, thereby consist of this back balance suspension system.
But along with the increase of building engineering, industrial and mineral carrying capacity and the complexity of use road conditions, present stage, not enough performance appearred in the back balance suspension load-carrying capacity of this conventional confguration, the a large amount of back balance suspension critical partss of frequent in actual use appearance lost efficacy, as above, lower thrust rod inefficacy, leaf spring fracture, balance shaft fracture by fatigue, the wearing and tearing of balance shaft axle head etc., for manufacturing enterprise and user have caused a large amount of losses.
The utility model content
For deficiency of the prior art, the utility model aims to provide and a kind ofly can significantly improve load-carrying capacity, and all parts structure more rationally, connect more firmly, make each parts be difficult for producing the heavy motor vehicle back balance suspension system of fracture by fatigue.
In order to address the above problem, the utility model provides a kind of heavy motor vehicle back balance suspension system, it is characterized in that comprising: casting beam assembly and balance shaft assembly;
The casting beam assembly comprises: integral type casting beam, upper junction plate, lower connecting plate; This integral type casting beam comprises that top board, base plate, connection top board be connected with the top board side plate vertical with base plate and be connected top board, base plate and two side plates middle parts make the longitudinal profile of this crossbeam and horizontal profile all be the riser of " work " shaped sections with bottom end; The two ends of top board respectively are provided with at least two row's top board riveted holes, and the two ends of base plate respectively are provided with at least one row's base plate riveted holes and at least two and ranked first bolt connecting hole, and side plate is provided with at least four row's bolt connecting holes; Be provided with two X-shaped reinforced ribs between the front and rear surfaces of riser and top board, base plate, the center crossover sites of X-shaped reinforced rib is provided with the upper thrust rod connecting bore; Two upper junction plates are respectively by top board riveted holes and casting beam riveted joint, and two lower connecting plates are respectively by base plate riveted holes and casting beam riveted joint;
Balance shaft assembly comprises: integral type balance shaft, secondary balance shaft and two balance shaft supports; The top platform of balance shaft support is provided with at least two and ranked second bolt connecting hole, platform side is provided with tapped blind hole, the middle part is provided with centre hole, the bottom is provided with lower thrust rod connecting bore and the first connecting flange faces, and two axle heads of integral type balance shaft are connected with centre hole on a balance shaft support respectively; Secondary balance shaft comprises a spill bend pipe, the two ends of spill bend pipe are respectively equipped with the second connecting flange faces, the first connecting flange faces of each balance shaft support is connected with the second connecting flange faces of secondary balance shaft respectively, makes the bottom of two balance shaft supports link together by secondary balance shaft;
The casting beam assembly is bolted the hole and is connected with chassis side rail, and the first tapped bore that balance shaft assembly is connected with base plate by the second tapped bore is connected with the casting beam assembly; Balance shaft assembly is connected with chassis side rail by the tapped blind hole on two balance shaft supports; The crossbeam end of upper thrust rod is connected with the upper thrust rod connecting bore, and the balance shaft support end of lower thrust rod is connected with the lower thrust rod connecting bore.
Preferably, the side plate of described integral type casting beam is provided with and falls heavy profiled holes, and described riser two ends have wire harness by the hole, and the middle part width of described top board and base plate makes the middle part of crossbeam form an indent arc to both ends less than its both ends width.Crossbeam connects the end and widens to satisfy Joint strenght, and the middle part is slightly narrow, with expendable weight; Each is connected the upper lower web plate of described each X-shaped reinforced rib with base plate with top board, and the vertically main component of the driving with upper thrust rod in suspension bob process and brake load and horizontal less important component adapt, and force transferring structure is more reasonable.Therefore adopt the casting beam of this kind structure not only to have rational structural strength, and satisfied the lightweight demand.
Preferably, the first butt flange and balance shaft top platform on described balance shaft support have certain leaning angle, this angle in order to two the second butt flanges on two the first butt flange distances on the compensation balance axle assembly and secondary balance shaft apart from Mismachining tolerance; In addition, this first butt flange top also be provided with a V-arrangement reinforced rib, this V-arrangement reinforced rib extends to the both sides of centre hole on balance shaft support.Reinforced rib rationally is set, can be when the vehicle heavy duty be used, the pulling force of secondary balance shaft is unlikely to make the connecting portion of flange and balance shaft support fatigue and fracture failure to occur.
Preferably, the spill bend pipe of described secondary balance shaft adopts welding manner to be connected with two ends the second butt flange; The spill bend pipe adopts bending circular pipe, its stage casing axis opposite end the second butt flange center connection lead has certain offset or dish, the relative second vertical plane of symmetry of butt flange of its vertical plane of symmetry has certain angle, this structure can make vehicle empty, full-loading condition and road roughness when relatively poor transmission shaft movement interference does not appear with secondary balance shaft, and reduced lateral direction of car crossing ability that the use due to secondary balance shaft causes and vertically crossing ability affect.In addition, adopt circular hollow section, also brought into play its weight strong characteristics of resistance to bending when identical.
More preferably, also comprise two stay bearing plates, each stay bearing plate top is connected with the outside of chassis side rail, and the bottom is connected with the balance shaft support outside, the casting beam assembly is connected more firm with chassis side rail.
The beneficial effects of the utility model are: adopt integral type casting beam structure, easily assurance and easy to assembly of precision when balance shaft assembly is assembled in batches; Be integrated with upper thrust rod bolted through hole on this casting beam, adopt " X " shape reinforced rib, guarantee that structural strength has reasonably realized lightweight simultaneously.Two secondary balance shafts of balance shaft support lower end employing connect, and have guaranteed balance shaft assembly rigidity, have reduced the maximum stress of the flexural deformation of balance shaft axle head and balance shaft and balance shaft support, have improved the assembly critical parts endurance failure life-span; Secondary balance shaft adopts the concave connection pipe, has reduced in right amount the impact on the rear suspension carrying capacity, has certain tension force, but also can avoid and middle back axle between transmission shaft produce collision and friction.Integral type balance shaft and balance shaft support adopt interference fit, guaranteed balance shaft vehicle accelerate or during braking relative to support without rotating.Balance shaft assembly and vehicle frame body side direction be connected two-way the connection, fastening reliable and system rigidity is improved.
Description of drawings
The structural representation of Fig. 1 heavy motor vehicle back balance of the prior art suspension system;
Fig. 2 is the integral type casting beam structural representation in the utility model;
Fig. 3 is the casting beam assembly structure schematic diagram in the utility model;
Fig. 4 is the balance shaft assembly structural representation in the utility model;
Fig. 5 is the transverse cross sectional schematic diagram of Fig. 4;
Fig. 6 is the balance shaft support structural representation in the utility model;
Fig. 7 is the another structural representation of the balance shaft support in the utility model;
Fig. 8 is the structural representation of the secondary balance shaft in the utility model;
Fig. 9 is the structural representation of facing of Fig. 8;
Figure 10 is the transverse cross sectional schematic diagram of Fig. 8;
Figure 11 is the annexation schematic diagram of casting beam assembly, balance shaft assembly, chassis side rail and stay bearing plate in the utility model;
Figure 12 is the structural representation of the heavy motor vehicle back balance suspension system of the secondary balance shaft of band in the utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
A kind of heavy motor vehicle back balance suspension system of the present utility model, this system comprises casting beam assembly and balance shaft assembly.
In conjunction with Fig. 2 and Fig. 3, the casting beam assembly comprises: an integral type casting beam 4, a upper junction plate 5 and a lower connecting plate 6.As shown in Figure 2, this integral type casting beam adopts integrated casting structure, comprise top board 44, base plate 45 and connect top board and bottom end and perpendicular side plate 46, and the riser 47 that connects top board, base plate and two side plate middle parts, above arrangement form makes this crossbeam all form " work " shaped sections at longitudinal profile and horizontal profile perpendicular to riser 47.The two ends of top board 44 respectively are provided with two row top board riveted holes 4a and row's annex mounting hole 4b, and the two ends of base plate 45 respectively are provided with a row base plate riveted holes 4c and two and ranked first bolt connecting hole 4d, and side plate 46 is provided with four lines bolt connecting hole 4e.Be provided with two X-shaped reinforced ribs 48 between the front and rear surfaces of perforation riser 47 and top board 44, base plate 45, the center crossover sites of this X-shaped reinforced rib 48 is provided with upper thrust rod connecting bore 4f, the side plate 46 of this integral type casting beam 4 is provided with and falls heavy profiled holes 461, riser 47 two ends are provided with wire harness by hole 471, the middle part width of described top board 44 and base plate 45 makes the middle part of crossbeam form an indent arc to both ends less than its both ends width; Each is connected the upper lower web plate of each X-shaped reinforced rib with base plate with top board.
As shown in Figure 3, it is L shaped steel plate that upper junction plate 5 and lower connecting plate 6 are cross-sectional plane, wherein upper junction plate 5 end faces are provided with two row's riveted joint through holes, lower connecting plate 6 bottom surfaces are provided with row's riveted joint and arrange bolt connection through hole with through hole with being connected, in addition, upper junction plate 5 is connected the side and is equipped with two row bolts and connects and to use through holes with lower connecting plate.Casting beam 4 is realized being connected with upper junction plate 5 end face two exhausting holes by the top board riveted holes 4a of top board 44 ends, are connected an exhausting hole of bottom surface with lower connecting plate by the base plate riveted holes 4c of base plate 45 ends and connect, the through hole 4a here is connected with 4c and is adopted the riveted type structure to connect.On the casting beam assembly that riveted joint forms, upper junction plate 5 is connected the bolt of side and is connected with through hole 4e corresponding align on the side plate 46 of through hole and casting beam 4 with lower connecting plate.
As shown in Figure 4 and Figure 5, balance shaft assembly comprises: an integral type balance shaft 2, a secondary balance shaft 3 and two balance shaft supports 1.Two axle heads of balance shaft 2 are connected with two balance shaft supports, 1 formation interference fit by the centre hole 1b of balance shaft support 1, have replaced existing transition fit and have added the locating dowel pin connection mode; The first butt flange 11 of two balance shaft supports 1 is connected with two ends second butt flange 32 of secondary balance shaft 3 respectively, thereby a balance shaft 2, two balance shaft supports 1 and a secondary balance shaft 3 are connected to a balance shaft assembly, and this balance shaft assembly has following constructional feature: the balance shaft assembly overall structure is the closed ring structure; The direction of tilt of balance shaft 2 and secondary balance shaft 3 is all towards vehicle forward direction, with the motion space demand of transmission shaft in satisfying, between back axle.
As shown in Figure 6 and Figure 7, the top platform of this balance shaft support is provided with the tapped blind hole 1d of some the second tapped bore 1a and platform side, and the middle part of this support is provided with a centre hole 1b, and the bottom is provided with lower thrust rod connecting bore 1c and the first connecting flange faces 11.This first connecting flange faces 11 has certain leaning angle with the balance shaft top platform, and its top slopes inwardly.11 top of this first connecting flange faces has extended a V-arrangement reinforced rib 12, and this V-arrangement reinforced rib 12 extends to the both sides of described centre hole 1b, also is provided with reinforced rib 13 between the bottom of this first connecting flange faces and lower thrust rod connecting bore 1c in addition.
As Fig. 8, Fig. 9 and shown in Figure 10, secondary balance shaft 3 comprises a spill bend pipe 31, and the two ends of spill bend pipe 31 are respectively equipped with the second connecting flange faces 32.This pair balance shaft is formed by bending hollow circular-tube two ends welded flange adapter plate.Assembly after welding has following constructional feature: spill bend pipe 31 stage casing axis opposite end the second butt flange 32 center connection leads have certain offset or dish, and the relative second vertical plane of symmetry of butt flange 32 of its vertical plane of symmetry has certain angle.
As Figure 11 and shown in Figure 12, by the four lines connecting through hole 4e on the side plate 46 of casting beam 4, casting beam assembly and chassis side rail 8, stay bearing plate 7 adopt bolted to become the vehicle frame body; Be bolted connection by making in the tapped blind hole 1d of balance shaft support 1 side and stay bearing plate 7 corresponding aperture positions, and the bolt connecting through hole 1a on balance shaft support 1 top platform and the bolt connecting through hole 4d on casting beam 4 make and be bolted connection, and balance shaft assembly and vehicle frame body connect into as a whole.Be equipped with globe bearing and spacer in balance shaft housing, leaf spring 9 is fastened on balance shaft housing by saddle clamp 10, and this part assembly forms pin in the two ends assembling of integral type balance shaft and connects; The leaf spring two ends straddle on middle back axle leaf spring slide plate; The crossbeam end of upper thrust rod 34 is connected with upper thrust rod connecting bore 4e, after during the other end is fixed on the upper thrust rod pole socket of vehicle bridge, the balance shaft support end of lower thrust rod 35 is connected with lower thrust rod connecting bore 1c, after during the other end is fixed on, on the lower thrust rod seat of vehicle bridge, the formation control bridge location is put the push and pull system with attitude.
Adopt integral type casting beam structure, easily assurance and easy to assembly of precision when balance shaft assembly is assembled in batches; Be integrated with upper thrust rod bolted through hole on this casting beam, adopt " X " shape reinforced rib, realized lightweight when guaranteeing reliability.Two secondary balance shafts of balance shaft support lower end employing connect, and have guaranteed balance shaft assembly rigidity, have reduced the maximum stress of the flexural deformation of balance shaft axle head and balance shaft and balance shaft support, have improved the assembly critical parts endurance failure life-span; Secondary balance adopts the concave connection pipe, has reduced in right amount the impact on the rear suspension carrying capacity, has certain tension force, but also can avoid and middle back axle between transmission shaft produce movement interference.Integral type balance shaft and balance shaft support adopt interference fit, guaranteed balance shaft vehicle accelerate or during braking relative to support without rotating.Balance shaft assembly and vehicle frame body side direction be connected two-way the connection, fastening reliable and system rigidity is improved.
Claims (7)
1. a heavy motor vehicle back balance suspension system, is characterized in that comprising: casting beam assembly and balance shaft assembly;
The casting beam assembly comprises: integral type casting beam (4), upper junction plate (5), lower connecting plate (6); This integral type casting beam comprises top board (44), base plate (45), connect top board is connected with bottom end and makes the longitudinal profile of this crossbeam and horizontal profile all be the riser (47) of " work " shaped sections with the top board side plate (46) vertical with base plate and in the middle part of being connected top board, base plate and two side plates; The two ends of top board (44) respectively are provided with at least two row's top board riveted holes (4a), the two ends of base plate (45) respectively are provided with at least one row's base plate riveted holes (4c) and at least two and ranked first bolt connecting hole (4d), and side plate (46) is provided with at least four row's bolt connecting holes (4e); Be provided with two X-shaped reinforced ribs (48) between the front and rear surfaces of riser (47) and top board (44), base plate (45), the center crossover sites of X-shaped reinforced rib (48) is provided with upper thrust rod connecting bore (4f); Two upper junction plates (5) are respectively by top board riveted holes (4a) and casting beam (4) riveted joint, and two lower connecting plates (6) are respectively by base plate riveted holes (4c) and casting beam (4) riveted joint;
Balance shaft assembly comprises: integral type balance shaft (2), secondary balance shaft (3) and two balance shaft supports (1); The top platform of balance shaft support is provided with at least two and ranked second bolt connecting hole (1a), platform side is provided with tapped blind hole (1d), the middle part is provided with centre hole (1b), the bottom is provided with lower thrust rod connecting bore (1c) and the first connecting flange faces (11), and two axle heads of integral type balance shaft (2) are connected with centre hole (1b) on a balance shaft support (1) respectively; Secondary balance shaft (3) comprises a spill bend pipe (31), the two ends of spill bend pipe (31) are respectively equipped with the second connecting flange faces (32), first connecting flange faces (11) of each balance shaft support is connected with second connecting flange faces (32) of secondary balance shaft (3) respectively, makes the bottom of two balance shaft supports link together by secondary balance shaft (3);
The casting beam assembly is bolted hole (4e) and is connected with chassis side rail, and balance shaft assembly is connected 45 with base plate by the second tapped bore (1a)) on the first tapped bore (4d) be connected with the casting beam assembly; Balance shaft assembly is connected with chassis side rail by the tapped blind hole (1d) on two balance shaft supports (1); The crossbeam end of upper thrust rod (34) is connected with upper thrust rod connecting bore (4f), and the balance shaft support end of lower thrust rod (35) is connected with lower thrust rod connecting bore (1c).
2. heavy motor vehicle back balance suspension system according to claim 1, it is characterized in that: the sidewall (46) of described integral type casting beam (4) is provided with and falls repeated hole (461), and described riser two ends have wire harness by hole (471).
3. heavy motor vehicle back balance suspension system according to claim 1, it is characterized in that: the middle part width of described top board (44) and base plate (45) makes the middle part of crossbeam form an indent arc to both ends less than its both ends width; Each is connected the upper lower web plate of described each X-shaped reinforced rib with base plate with top board.
4. heavy motor vehicle back balance suspension system according to claim 1, it is characterized in that: the first connecting flange faces (11) on described balance shaft support (1) has a leaning angle with the balance shaft top platform; The top of (11) of this first connecting flange faces has extended a V-arrangement reinforced rib (12), and this V-arrangement reinforced rib (12) extends to the both sides of described centre hole (1b).
5. heavy motor vehicle back balance suspension system according to claim 1, it is characterized in that: the spill bend pipe (31) of described secondary balance shaft (3) adopts welding manner to be connected with two ends the second connecting flange faces (32); Spill bend pipe (31) adopts bending circular pipe, and its stage casing axis opposite end the second connecting flange faces (32) center connection lead has an offset or dish, and relative the second butt flange of its vertical plane of symmetry (32) the vertically plane of symmetry has an angle.
6. heavy motor vehicle back balance suspension system according to claim 1, it is characterized in that: the integral type balance shaft (2) of described balance shaft assembly is connected 1 with balance shaft support) adopt interference fit to connect, and balance shaft (2) and secondary balance shaft (3) all tilt towards vehicle forward direction.
7. heavy motor vehicle back balance suspension system according to claim 1 is characterized in that: also comprise two stay bearing plates (7), each stay bearing plate top is connected with the outside of chassis side rail, and the bottom is connected with the balance shaft support outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220621871 CN202986728U (en) | 2012-11-22 | 2012-11-22 | Rear balance suspension system of heavy-duty automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220621871 CN202986728U (en) | 2012-11-22 | 2012-11-22 | Rear balance suspension system of heavy-duty automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202986728U true CN202986728U (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220621871 Expired - Lifetime CN202986728U (en) | 2012-11-22 | 2012-11-22 | Rear balance suspension system of heavy-duty automobile |
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| Country | Link |
|---|---|
| CN (1) | CN202986728U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923193A (en) * | 2012-11-22 | 2013-02-13 | 陕西重型汽车有限公司 | Rear balanced suspension frame system of heavy-duty car |
| CN104149854A (en) * | 2014-08-27 | 2014-11-19 | 安徽江淮汽车股份有限公司 | Front beam assembly |
| CN106827995A (en) * | 2017-01-20 | 2017-06-13 | 中国第汽车股份有限公司 | The frame cross assembly that a kind of V-type track bar bracket is constituted |
-
2012
- 2012-11-22 CN CN 201220621871 patent/CN202986728U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923193A (en) * | 2012-11-22 | 2013-02-13 | 陕西重型汽车有限公司 | Rear balanced suspension frame system of heavy-duty car |
| CN102923193B (en) * | 2012-11-22 | 2015-09-09 | 陕西重型汽车有限公司 | Heavy motor vehicle back balance suspension system |
| CN104149854A (en) * | 2014-08-27 | 2014-11-19 | 安徽江淮汽车股份有限公司 | Front beam assembly |
| CN106827995A (en) * | 2017-01-20 | 2017-06-13 | 中国第汽车股份有限公司 | The frame cross assembly that a kind of V-type track bar bracket is constituted |
| CN106827995B (en) * | 2017-01-20 | 2024-03-15 | 中国第一汽车股份有限公司 | Frame cross beam assembly formed by V-shaped thrust rod brackets |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |