CN112677725A - Torsion-resistant pull rod assembly of automobile - Google Patents
Torsion-resistant pull rod assembly of automobile Download PDFInfo
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- CN112677725A CN112677725A CN201910988204.3A CN201910988204A CN112677725A CN 112677725 A CN112677725 A CN 112677725A CN 201910988204 A CN201910988204 A CN 201910988204A CN 112677725 A CN112677725 A CN 112677725A
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- connecting rod
- end cover
- assembly
- support
- torsion beam
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Abstract
The invention discloses an automobile anti-torsion pull rod assembly which comprises a connecting rod, an end cover, a support and a cover plate, wherein a mounting hole is formed in the end cover and is sleeved at the top end of the connecting rod through the mounting hole, the end cover and the connecting rod are fixedly welded, a positioning part is arranged on the connecting rod, a buckle is arranged on the cover plate and is clamped on the positioning part through the buckle, the support is positioned between the end cover and the cover plate, a front vibration reduction block is arranged between the end cover and the support, a rear vibration reduction block is arranged between the support and the cover plate, and a lining assembly is arranged at the bottom end of the connecting rod. The invention has the advantages of simple structure, less sub-parts, being beneficial to improving the forming efficiency and the product safety, and the like.
Description
Technical Field
The invention relates to an automobile power assembly suspension system, in particular to an automobile torsion-resistant pull rod assembly.
Background
The existing torsion-resistant pull rod assembly of the automobile is mostly of a steel integral structure, so that the weight is heavier and the product precision is lower; to reduce weight, the links in some torsion bar assemblies are gravity cast, but are still heavy. Generally, an end cover and a cover plate are connected through a bolt and a nut in the anti-torsion pull rod assembly, the anti-torsion pull rod assembly is limited by the structure, a standard bolt and nut structure cannot be used, special customization is needed, the cost is high, and the bolt connection causes damage to a system or abnormal sound due to the risk of looseness of the anti-torsion pull rod assembly when the anti-torsion pull rod assembly is subjected to impact load. In addition, the bushing in the conventional torsion-resistant pull rod assembly for the automobile is generally sleeved with steel, so that the weight is increased, and the cost of the whole piece is also increased. Meanwhile, the anti-torsion pull rod assembly involves more assembly parts, so that the forming efficiency is low.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the automobile torsion-resistant pull rod assembly which is simple in structure, has fewer sub-parts and is beneficial to improving the forming efficiency and the product safety.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides an antitorque pull rod assembly of car, includes connecting rod, end cover, support and apron, be equipped with the mounting hole on the end cover and locate through the mounting hole cover the connecting rod top, welded fastening between end cover and the connecting rod, be equipped with location portion on the connecting rod, be equipped with the buckle on the apron and through the buckle chucking in on location portion, the support is located between end cover and the apron, damping block before being equipped with between end cover and the support, be equipped with back damping block between support and the apron, the connecting rod bottom is equipped with the bush subassembly.
As a further improvement of the above technical solution: the mounting hole is rectangular hole and two long sides are more than two short sides protrusion, connecting rod top cross section is rectangle and long limit both ends are equipped with the convex part, the end cover terminal surface is located on the convex part.
As a further improvement of the above technical solution: the end cover and the support are formed by aluminum alloy gravity casting, the connecting rod is formed by aluminum extrusion, and the cover plate is a nylon 66 cover plate or a nylon 66 and glass fiber combined cover plate.
As a further improvement of the above technical solution: and d is more than or equal to 40 mm and less than or equal to 50 mm when the width of the connecting rod is d.
As a further improvement of the above technical solution: the connecting rod is provided with a plurality of lightening holes, and the lightening holes are located between the positioning part and the lining assembly.
As a further improvement of the above technical solution: the front vibration damping block and the rear vibration damping block are both rubber blocks.
As a further improvement of the above technical solution: the bushing assembly is composed of a steel inner sleeve and a rubber sleeve positioned on the periphery of the steel inner sleeve, and the rubber sleeve and the steel inner sleeve are vulcanized into a whole.
As a further improvement of the above technical solution: flanges are arranged at two ends of the rubber sleeve, and the bottom end of the connecting rod is clamped between the two flanges.
As a further improvement of the above technical solution: the surface of the rubber sleeve is provided with etched lines.
Compared with the prior art, the invention has the advantages that: according to the automobile anti-torsion pull rod assembly disclosed by the invention, the end cover is provided with the mounting hole and is sleeved at the top end of the connecting rod through the mounting hole, the connecting rod and the end cover are welded and fixed, the cover plate is fixed on the positioning part of the connecting rod through the buckle, the automobile anti-torsion pull rod assembly can be formed in one step through welding, the bolt and the nut are not required to be utilized for assembly and connection again, the forming efficiency is improved, the cost is reduced, the weight of a product is obviously reduced, meanwhile, the connection fastening degree is higher, the potential risk of thread loosening is avoided, and the driving safety of; the sub-parts that whole assembly relates to are less, and the structure is simpler, and can guarantee the precision of product through the welding frock.
Drawings
FIG. 1 is a schematic cross-sectional view of an automotive torsion beam assembly according to the present invention.
Fig. 2 is a schematic view of a connecting rod according to the present invention.
Fig. 3 is a front view of the cover plate of the present invention.
Fig. 4 is a schematic top view of the cover plate of the present invention.
Fig. 5 is a schematic view of the construction of the bushing assembly of the present invention.
FIG. 6 is a schematic cross-sectional view of a clamp for forming an automotive anti-torsion tie rod assembly according to the present invention.
FIG. 7 is a schematic view of the external structure of a jig for forming the torsion bar assembly of the vehicle according to the present invention.
The reference numerals in the figures denote: 1. a connecting rod; 11. a positioning part; 12. a convex portion; 13. lightening holes; 2. an end cap; 21. mounting holes; 3. a support; 4. a cover plate; 41. buckling; 5. a front vibration damping block; 6. a rear damper block; 7. a bushing assembly; 71. a steel inner sleeve; 72. a rubber sleeve; 73. a flange; 81. fixing the core rod; 82. a rod body fixing support; 83. welding a support bracket; 84. the top end is fixed with the bracket.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples of the specification.
Fig. 1 to 7 show an embodiment of an automotive anti-torsion bar assembly according to the present invention, which includes a connecting rod 1, an end cover 2, a bracket 3 and a cover plate 4, wherein the end cover 2 is provided with a mounting hole 21 and is sleeved on a top end of the connecting rod 1 through the mounting hole 21, the end cover 2 and the connecting rod 1 are preferably welded and fixed by friction stir welding (friction stir welding, which is a method of generating heat by friction between a welding tool rotating at a high speed and a workpiece to cause local plasticization, when the welding tool moves forward along a welding interface, a plasticized material flows from a front portion to a rear portion of the welding tool under the action of rotational friction of the welding tool and forms a dense solid-phase welding seam under the extrusion of the welding tool), and during welding, after moving for a circle along a gap in a clockwise or counterclockwise direction, the welding head is moved to a central point of the top end of the connecting rod. The rotating speed of the stirring head is preferably 600-2000 rpm, the inserting speed of the stirring head is preferably 30-100 mm/min, the advancing speed of the stirring head is preferably 200-500 mm/min, the inserting depth of the shaft shoulder is 0.2-2 mm, and the welding time is 20-60 seconds; be equipped with location portion 11 on connecting rod 1, location portion 11 preferably adopts the boss structure, be equipped with buckle 41 on apron 4 and through buckle 41 chucking on location portion 11, support 3 is located between end cover 2 and the apron 4, is equipped with preceding damping piece 5 between end cover 2 and the support 3, is equipped with back damping piece 6 between support 3 and the apron 4, and connecting rod 1 bottom is equipped with bush subassembly 7.
According to the automobile torsion-resistant pull rod assembly, the end cover 2 is provided with the mounting hole 21 and is sleeved at the top end of the connecting rod 1 through the mounting hole 21, the connecting rod 1 and the end cover 2 are welded and fixed, the cover plate 4 is fixed on the positioning part 11 of the connecting rod 1 through the buckle 41, the automobile torsion-resistant pull rod assembly can be formed in one step through welding, the bolt and the nut are not required to be used for assembly and connection again, the forming efficiency is improved, the cost is reduced, the weight of a product is obviously reduced, meanwhile, the connection fastening degree is higher, the potential risk of thread loosening is avoided, and the running safety of the whole; the sub-parts that whole assembly relates to are less, and the structure is simpler, and can guarantee the precision of product through the welding frock.
As a preferable technical scheme, in the embodiment, the mounting hole 21 is a rectangular hole, two long sides of the mounting hole protrude out of two short sides of the mounting hole, the cross section of the top end of the connecting rod 1 is rectangular, two ends of each long side of the connecting rod are provided with the protruding portions 12, the protruding height of each protruding portion 12 is preferably 1-4 mm, and the arrangement is favorable for improving the structural strength of the top end of the torsion-resistant pull rod assembly of the automobile; the end face of the end cover 2 is positioned on the convex part 12, namely the convex part 12 is simultaneously used as a positioning support plane of the end cover 2, so that sufficient support is provided, relative dislocation or deformation of the end cover 2 and the connecting rod 1 during welding is prevented, and the product forming precision is ensured.
As the preferred technical scheme, the end cover 2 and the bracket 3 are formed by aluminum alloy gravity casting, the connecting rod 1 is formed by aluminum extrusion, and the cover plate 4 is a nylon 66(PA66) cover plate or a nylon 66 and glass fiber combined (PA66+ GF) cover plate, so that the strength use requirement of the automobile torsion-resistant pull rod assembly can be met, the total weight can be effectively reduced, and the aim of light weight is fulfilled.
Further, in the present embodiment, when the width of the link 1 is d, the value of 40 mm ≦ d ≦ 50 mm. Due to the combined use of the plastic cover plate 4, the end cap 2 and the link 1, the width of the link 1 can be reduced to 40 mm to 50 mm, and the weight of the link 1 can be further reduced while the use requirement is satisfied.
Furthermore, in the present embodiment, a plurality of lightening holes 13 are formed on the connecting rod 1, and the lightening holes 13 are located between the positioning portion 11 and the bushing assembly 7. The weight of the connecting rod 1 can be further reduced while the use requirements are met by arranging the plurality of lightening holes 13.
In the present embodiment, the front damper block 5 and the rear damper block 6 are both rubber blocks. The front and rear damping blocks 5, 6 are mainly used to achieve the damping and supporting action of the suspension system.
Further, in the present embodiment, the bushing assembly 7 is composed of a steel inner sleeve 71 and a rubber sleeve 72 located at the outer periphery of the steel inner sleeve 71, and the rubber sleeve 72 and the steel inner sleeve 71 are vulcanized into a whole. The bush component 7 adopts a non-steel outer sleeve structure, is directly vulcanized into a whole by the rubber sleeve 72 and the steel inner sleeve 71, the material of the steel inner sleeve 71 preferably adopts 45#, and the bush component 7 is pressed into the hole of the connecting rod 1 after being formed and is matched with the hole to be connected with the frame end.
Further, in the present embodiment, the rubber sleeve 72 has two flanges 73 at two ends, and the bottom end of the connecting rod 1 is clamped between the two flanges 73. After the bushing component 7 is matched with the connecting rod 1, the flanges 73 at the two ends protrude out of the hole of the connecting rod 1 and are attached to the end face of the connecting rod 1, and in the movement process of the automobile torsion-resistant pull rod assembly, the bushing component 7 can be effectively prevented from jumping out of the hole of the connecting rod 1, and the structure is simple and reliable.
Further, in this embodiment, the surface of the rubber sleeve 72 is provided with an etching (which can be realized by etching a rubber mold, and the etching of the mold is a rough etching formed on the surface of the mold cavity by the action of chemical solution). The provision of the texture increases the friction between the rubber sleeve 72 and the connecting rod 1, preventing the bush assembly 7 from coming out of the hole of the connecting rod 1 during use.
During molding, the plastic cover plate 4 is pressed into the connecting rod 1, then the rear vibration damping block 6 is installed, the support 3 and the front vibration damping block 5 are pressed into the plastic cover plate, and the convex part 12 on the connecting rod 1 can ensure that the front vibration damping block 5 is not easy to move after being pressed into the plastic cover plate, so that structural deformation and actual effect are prevented from occurring in the process. The front vibration reduction block 5 and the rear vibration reduction block 6 play a role in supporting and reducing vibration; the front vibration reduction block 5 is attached to the end face of the plastic cover plate 4. The plastic cover plate 4 provides stress support for the front and rear damping blocks and transmits the stress support to the connecting rod 1, so that the limiting protection effect is achieved. The connecting rod 1, the front vibration damping block 5, the bracket 3 and the rear vibration damping block 6 are assembled together and then welded. The product keeps vertical placing during welding, install connecting rod 1 hole earlier on fixed plug 81, then pole body fixed bolster 82 and connecting rod 1 pole body laminating, pole body fixed bolster 82 can be rectangular block or cylinder structure, the both sides symmetry laminating, then damping block 5 before welding support 83 compression is until with the convex part 12 parallel and level on the connecting rod 1, in order to guarantee the effective cooperation position of end cover 2 and provide sufficient plane support, end cover 2 takes place relative dislocation or deformation with connecting rod 1 during the prevention welding, then impress end cover 2 to the connecting rod 1 top, rethread top fixed bolster 84 fixes end cover 2 on welded platform, it is integrative to weld end cover 2 and connecting rod 1 at last. And pressing the bushing assembly 7 into the final torsion resistant pull rod assembly after welding. Preferably, the flange 73 of the rubber sleeve 72 is protected from damage during pressing in of the bushing assembly 7, which is achieved by means of a conical guide cylinder.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (9)
1. The utility model provides an anti-torsion pull rod assembly of car, includes connecting rod (1), end cover (2), support (3) and apron (4), its characterized in that: be equipped with mounting hole (21) on end cover (2) and locate through mounting hole (21) cover connecting rod (1) top, welded fastening between end cover (2) and connecting rod (1), be equipped with location portion (11) on connecting rod (1), be equipped with buckle (41) on apron (4) and through buckle (41) chucking in on location portion (11), support (3) are located between end cover (2) and apron (4), be equipped with preceding damping piece (5) between end cover (2) and support (3), be equipped with back damping piece (6) between support (3) and apron (4), connecting rod (1) bottom is equipped with bush subassembly (7).
2. The automotive torsion beam resisting assembly in accordance with claim 1, wherein: mounting hole (21) are rectangular hole and two long limits than two minor faces protrusion, connecting rod (1) top cross section is the rectangle and long limit both ends are equipped with convex part (12), end cover (2) terminal surface is located on convex part (12).
3. The automotive torsion beam resisting assembly in accordance with claim 1, wherein: the end cover (2) and the support (3) are formed by aluminum alloy gravity casting, the connecting rod (1) is formed by aluminum extrusion, and the cover plate (4) is a nylon 66 cover plate or a nylon 66 and glass fiber combined cover plate.
4. The automotive torsion beam resisting assembly in accordance with claim 3, wherein: and the width of the connecting rod (1) is d, and the d is more than or equal to 40 mm and less than or equal to 50 mm.
5. The automotive torsion beam resisting assembly in accordance with claim 3, wherein: the connecting rod (1) is provided with a plurality of lightening holes (13), and the lightening holes (13) are located between the positioning part (11) and the bushing assembly (7).
6. The automotive torsion beam resisting bar assembly according to any one of claims 1 to 5, wherein: the front vibration reduction block (5) and the rear vibration reduction block (6) are both rubber blocks.
7. The automotive torsion beam resisting bar assembly according to any one of claims 1 to 5, wherein: the bushing assembly (7) is composed of a steel inner sleeve (71) and a rubber sleeve (72) located on the periphery of the steel inner sleeve (71), and the rubber sleeve (72) and the steel inner sleeve (71) are vulcanized into a whole.
8. The automotive torsion beam resisting assembly in accordance with claim 7, wherein: flanges (73) are arranged at two ends of the rubber sleeve (72), and the bottom end of the connecting rod (1) is clamped between the flanges (73).
9. The automotive torsion beam resisting apparatus in accordance with claim 8, wherein: the surface of the rubber sleeve (72) is provided with corrosion grains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910988204.3A CN112677725A (en) | 2019-10-17 | 2019-10-17 | Torsion-resistant pull rod assembly of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910988204.3A CN112677725A (en) | 2019-10-17 | 2019-10-17 | Torsion-resistant pull rod assembly of automobile |
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| Publication Number | Publication Date |
|---|---|
| CN112677725A true CN112677725A (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910988204.3A Pending CN112677725A (en) | 2019-10-17 | 2019-10-17 | Torsion-resistant pull rod assembly of automobile |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090052051A (en) * | 2007-11-20 | 2009-05-25 | 현대자동차주식회사 | Roll rod mounting device for vehicle |
| CN201346983Y (en) * | 2008-12-19 | 2009-11-18 | 奇瑞汽车股份有限公司 | Torsion-resistance draw-rod type dynamic assembly suspending |
| KR20110067571A (en) * | 2009-12-14 | 2011-06-22 | 주식회사 파브코 | Torque rod mount |
| CN102476570A (en) * | 2010-11-30 | 2012-05-30 | 现代自动车株式会社 | Roll-rod for vehicle |
| CN106314116A (en) * | 2015-06-29 | 2017-01-11 | 广州汽车集团股份有限公司 | Anti-torque pulling rod |
| JP2019052725A (en) * | 2017-09-15 | 2019-04-04 | 住友理工株式会社 | Torque rod |
-
2019
- 2019-10-17 CN CN201910988204.3A patent/CN112677725A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090052051A (en) * | 2007-11-20 | 2009-05-25 | 현대자동차주식회사 | Roll rod mounting device for vehicle |
| CN201346983Y (en) * | 2008-12-19 | 2009-11-18 | 奇瑞汽车股份有限公司 | Torsion-resistance draw-rod type dynamic assembly suspending |
| KR20110067571A (en) * | 2009-12-14 | 2011-06-22 | 주식회사 파브코 | Torque rod mount |
| CN102476570A (en) * | 2010-11-30 | 2012-05-30 | 现代自动车株式会社 | Roll-rod for vehicle |
| CN106314116A (en) * | 2015-06-29 | 2017-01-11 | 广州汽车集团股份有限公司 | Anti-torque pulling rod |
| JP2019052725A (en) * | 2017-09-15 | 2019-04-04 | 住友理工株式会社 | Torque rod |
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Application publication date: 20210420 |
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