CN113895199B - Integral bridge type watt connecting rod composite suspension - Google Patents
Integral bridge type watt connecting rod composite suspension Download PDFInfo
- Publication number
- CN113895199B CN113895199B CN202111347769.7A CN202111347769A CN113895199B CN 113895199 B CN113895199 B CN 113895199B CN 202111347769 A CN202111347769 A CN 202111347769A CN 113895199 B CN113895199 B CN 113895199B
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- China
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- rear axle
- hinged
- vehicle body
- arm
- connecting rod
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- 239000000725 suspension Substances 0.000 title claims abstract description 32
- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 238000013016 damping Methods 0.000 claims abstract description 18
- 230000035939 shock Effects 0.000 claims description 27
- 238000010521 absorption reaction Methods 0.000 claims description 12
- 239000006096 absorbing agent Substances 0.000 claims description 10
- 230000009467 reduction Effects 0.000 claims description 6
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000009191 jumping Effects 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
- B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
- B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
- B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
- B60G21/051—Trailing arm twist beam axles
- B60G21/052—Mounting means therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/20—Semi-rigid axle suspensions
- B60G2200/21—Trailing arms connected by a torsional beam, i.e. twist-beam axles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/20—Stationary vehicle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention provides an integral bridge type Watt linkage composite suspension, which comprises a left longitudinal arm, a right longitudinal arm, a left transverse linkage, a right transverse linkage, a left damping mechanism, a right damping mechanism and a connecting arm arranged along the height direction of a vehicle body; the rear ends of the left longitudinal arm and the right longitudinal arm are connected with a rear axle, and the front ends of the left longitudinal arm and the right longitudinal arm are hinged with a vehicle body; the middle part of the connecting arm is hinged with a connecting piece, and the connecting piece is fixedly connected with the bottom of the vehicle body; one end of a left transverse connecting rod is connected with the rear axle Zuo Duanjiao, the other end of the left transverse connecting rod is hinged with one end of the connecting arm, one end of a right transverse connecting rod is hinged with the right end of the rear axle, and the other end of the right transverse connecting rod is hinged with the other end of the connecting arm; the lower ends of the left damping mechanism and the right damping mechanism are connected with the rear axle, and the upper ends of the left damping mechanism and the right damping mechanism are connected with the bottom of the vehicle body. The invention can optimize the abrasion of the tire and simultaneously promote the roll control, the stability performance and the coordination of the suspension of the whole vehicle.
Description
Technical Field
The invention relates to the technical field of automotive suspensions, in particular to an integral bridge type Watt linkage composite suspension.
Background
Composite suspensions typically include torsion beam based suspensions, multi-link based multi-link suspensions, and trailing arm based suspensions. In the existing trailing arm suspension, lateral movement between an axle and a vehicle body is controlled by adopting a transverse thrust rod, one end of the transverse thrust rod is connected to a trailing arm of the suspension, and the other end of the transverse thrust rod is connected to the vehicle body. When the wheel jump drives the suspension to move, the transverse thrust rod can do curve motion by taking the vehicle body joint point as the circle center. Because the transverse movement limited by the transverse thrust rod is incomplete, the movement of the rear suspension is asymmetric due to the curve movement, so that the comfort and the stability of the whole vehicle can be worsened along with the large steering angle when the vehicle is turned by the trailing arm suspension; under the impact of unsprung mass, the automobile body has a yaw trend, and severe oversteer and tail flick can occur under an extreme compound working condition to influence the driving safety; the curve motion makes the transverse movement of the rear axle unavoidable, which can lead to tyre abrasion, and meanwhile, the ground adhesion force cannot be utilized to the maximum extent to influence the stability of the whole vehicle.
Disclosure of Invention
The invention aims to provide an integral bridge type Watt linkage composite suspension, which can optimize the abrasion of tires and simultaneously improve the roll control and stability of the whole vehicle and the coordination of the suspension.
The embodiment of the invention is realized by the following technical scheme:
an integral bridge watt linkage composite suspension comprising:
The front end of the left longitudinal arm is hinged with the left side of the vehicle body, and the rear end of the left longitudinal arm is connected with the left end of the rear axle; the front end of the right longitudinal arm is hinged with the right side of the vehicle body, and the rear end of the right longitudinal arm is connected with the right end of the rear axle;
The connecting arm is arranged along the height direction of the vehicle body, the middle part of the connecting arm is hinged with the connecting piece, and the connecting piece is fixedly connected with the bottom of the vehicle body;
the left transverse connecting rod and the right transverse connecting rod, one end of the left transverse connecting rod is connected with the rear axle Zuo Duanjiao, and the other end of the left transverse connecting rod is hinged with one end of the connecting arm; one end of the right transverse connecting rod is hinged with the right end of the rear axle, and the other end of the right transverse connecting rod is hinged with the other end of the connecting arm;
The lower end of the left shock absorption mechanism is connected with the left end of the rear axle, and the upper end of the left shock absorption mechanism is connected with the left side of the bottom of the vehicle body; the lower extreme of right damper is connected with the rear axle right-hand member, and right damper's upper end is connected with the automobile body bottom right side.
Optionally, the left and right shock absorbing mechanisms each include a shock absorbing spring and a shock absorber.
Optionally, the left and right ends of the rear axle are provided with spring lower seats, the two sides of the bottom of the vehicle body are provided with spring upper seats, the lower ends of the damping springs are fixedly connected with the spring lower seats, and the upper ends of the damping springs are fixedly connected with the spring upper seats.
Optionally, a buffer block is arranged on the upper spring seat or the lower spring seat.
Optionally, the both ends bottom of rear axle is equipped with first installing support, and the automobile body bottom both sides are equipped with first mount pad, the upper end of bumper shock absorber is articulated with first mount pad, the lower extreme of bumper shock absorber is articulated with first installing support.
Optionally, the first mounting bracket extends below the rear axle, and the lower end of the damper is hinged with the lower end of the first mounting bracket.
Optionally, one end of the connecting piece is fixedly connected with the left side of the automobile body, the other end of the connecting piece is fixedly connected with the right side of the automobile body, and the middle part of the connecting arm is hinged with the middle part of the connecting piece.
Optionally, the bottom of both ends of rear axle all is equipped with the second installing support, left trailing arm with the rear end of right trailing arm respectively is equipped with two second bush, and the second bush passes through bolted connection with the second installing support.
Optionally, two ends of the rear axle are provided with supporting shafts extending backwards, and one ends of the left transverse connecting rod and the right transverse connecting rod, which are far away from the connecting arm, are hinged with the corresponding supporting shafts.
Optionally, a driving mechanism is arranged in the middle of the rear axle, the driving mechanism comprises a driving motor and a speed reducer, and an output shaft of the driving motor is connected with a driving shaft of the rear axle through the speed reducer.
The invention has at least the following advantages and beneficial effects: in the invention, the mode that the Watt connecting rod (namely the whole of the left transverse pull rod, the right transverse pull rod and the connecting arm) is connected with the vehicle body is adopted, so that when the left wheel and the right wheel do parallel jumping, the center of the axle is unchanged in the transverse direction in the up-and-down jumping process of the suspension, and the transverse movement of the rear axle is limited to the greatest extent; when the single wheel jumps, the left transverse pull rod and the right transverse pull rod interact through the connecting arm to inhibit, so that the load transfer of the rear axle wheel is improved, and the adhesive force of the bottom surface can be better utilized in the suspension movement; the tire wear can be optimized, and meanwhile, the roll control and stability performance of the whole vehicle and the coordination of a suspension can be improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a composite suspension of an integral bridge type Watt linkage;
FIG. 2 is a schematic structural diagram II of an integral bridge type Watt linkage composite suspension provided by the invention;
FIG. 3 is a schematic structural view III of an integral bridge type Watt linkage composite suspension provided by the invention;
Icon: 1-left trailing arm, 101-first bush, 102-second bush, 2-right trailing arm, 3-connecting arm, 4-left transverse link, 401-third bush, 402-U type seat, 5-right transverse link, 6-left damper mechanism, 601-damper spring, 602-undershot, 603-sprung seat, 604-buffer block, 605-damper, 7-right damper mechanism, 8-automobile body, 9-rear axle, 901-first mounting bracket, 902-second mounting bracket, 903-supporting axle, 10-connecting piece, 11-actuating mechanism, 1101-actuating motor, 1102-reduction gear.
Detailed Description
As shown in fig. 1-3, an integral bridge type watt linkage composite suspension comprises a left trailing arm 1, a right trailing arm 2, a connecting arm 3, a left transverse link 4, a right transverse link 5, a left shock absorbing mechanism 6 and a right shock absorbing mechanism 7.
The middle part of rear axle 9 is equipped with actuating mechanism 11, and actuating mechanism 11 includes driving motor 1101 and reduction gear 1102, and reduction gear 1102 of this embodiment is that the output shaft of two-stage reduction gear 1102 driving motor 1101 passes through reduction gear 1102 to be connected with rear axle 9's drive shaft. Namely, the invention can be applied to an electric vehicle, and the driving motor 1101 drives the driving shaft of the rear axle 9 to rotate after being decelerated by the decelerator 1102, so that the rear drive of the vehicle is realized.
The front end of the left longitudinal arm 1 is hinged with the left side of the vehicle body 8, and the rear end of the left longitudinal arm 1 is connected with the left end of the rear axle 9; the front end of the right longitudinal arm 2 is hinged with the right side of the vehicle body 8, and the rear end of the right longitudinal arm 2 is connected with the right end of the rear axle 9. Specifically, the front ends of the left trailing arm 1 and the right trailing arm 2 are respectively provided with a first bushing 101, two sides of the bottom of the vehicle body 8 are respectively welded with a second mounting seat, the second mounting seats are connected with the first bushings 101 through bolts, the bolts penetrate through the centers of the first bushings 101, and the left trailing arm 1 and the right trailing arm 2 can rotate around the centers of the bolts. The rear ends of the left trailing arm 1 and the right trailing arm 2 are respectively provided with two second bushings 102, the bottoms of the two ends of the rear axle 9 are respectively provided with a second mounting bracket 902, and the second bushings 102 are connected with the second mounting brackets 902 through bolts, so that the rear ends of the left trailing arm 1 and the right trailing arm 2 are fixed with the rear axle 9.
The connecting arm 3 is arranged along the height direction of the car body 8, the middle part of the connecting arm 3 is hinged with the connecting piece 10, and the connecting piece 10 is fixedly connected with the bottom of the car body 8. In this embodiment, one end of the connecting piece 10 is fixedly connected with the left side of the vehicle body 8, the other end of the connecting piece 10 is fixedly connected with the right side of the vehicle body 8, and the middle part of the connecting arm 3 is hinged with the middle part of the connecting piece 10, that is, the embodiment is a rod which is transversely arranged (it is easy to understand that the rod-shaped connecting piece 10 can be adaptively bent according to the bottom plate of the vehicle body 8), and the rod is connected with two sides of the vehicle body 8, so that the connecting strength can be ensured, and the structure is more stable. In other examples of the invention, the connecting member 10 may also be a block (e.g., rectangular block, triangular block), and the block-shaped connecting member 10 may extend directly upward from the hinge joint with the connecting arm 3 to be fixedly connected to the bottom of the vehicle body 8.
One end of the left transverse connecting rod 4 is hinged with the left end of the rear axle 9, and the other end of the left transverse connecting rod 4 is hinged with one end of the connecting arm 3; one end of the right transverse connecting rod 5 is hinged with the right end of the rear axle 9, and the other end of the right transverse connecting rod 5 is hinged with the other end of the connecting arm 3. Specifically, both ends of the rear axle 9 are provided with support shafts 903 extending rearward, and one ends of the left and right lateral links 4 and 5, which are remote from the connecting arm 3, are provided with third bushings 401, and the third bushings 401 are rotatably sleeved on the corresponding support shafts 903. The end of the left transverse connecting rod 4 and the end of the right transverse connecting rod 5, which are close to the connecting arm 3, are respectively provided with a U-shaped seat 402, the end part of the connecting arm 3 is arranged in the U-shaped seat 402, and the left transverse connecting rod 4 and the right transverse connecting rod 5 can rotate relative to the corresponding ends of the connecting arm 3 through bolt connection.
It is worth to say that, in the invention, because the Watt connecting rod (namely the whole of the left transverse pull rod, the right transverse pull rod and the connecting arm 3) is connected with the vehicle body 8, when the left wheel and the right wheel do parallel jumping, the center of the axle is unchanged in the transverse direction in the vertical jumping process of the suspension, and the transverse movement of the rear axle is limited to the greatest extent; when the single wheel jumps, the left transverse pull rod and the right transverse pull rod interact through the connecting arm 3 to inhibit, so that the load transfer of the rear axle wheel is improved, and the adhesive force of the bottom surface can be better utilized in the suspension movement; the tire wear can be optimized, and meanwhile, the roll control and stability performance of the whole vehicle and the coordination of a suspension can be improved.
The left shock absorption mechanism 6 and the right shock absorption mechanism 7, the lower end of the left shock absorption mechanism 6 is connected with the left end of the rear axle 9, and the upper end of the left shock absorption mechanism 6 is connected with the left side of the bottom of the vehicle body 8; the lower extreme of right damper 7 is connected with rear axle 9 right-hand member, and the upper end of right damper 7 is connected with automobile body 8 bottom right side. Specifically, the left damper mechanism 6 and the right damper mechanism 7 each include a damper spring 601 and a damper 605.
The installation of damping spring 601 is as follows, and the left and right sides both ends of rear axle 9 are equipped with spring lower seat 602, and automobile body 8 bottom both sides are equipped with spring upper seat 603, and damping spring 601's lower extreme and spring lower seat 602 fixed connection, damping spring 601's upper end and spring upper seat 603 fixed connection play the cushioning effect through damping spring 601 when controlling the wheel and beating. In this embodiment, the upper spring seat 603 is provided with a buffer block 604, and the buffer block 604 may be made of rubber, so that when the jump is large, the buffer block 604 abuts against the lower spring seat 602 to play a role of buffering. It will be readily appreciated that in other embodiments of the present invention, the bumper 604 may also be provided on the undershot 602.
The installation of bumper shock absorber 605 is as follows, and rear axle 9's both ends bottom is equipped with first installing support 901, and automobile body 8 bottom both sides are equipped with first mount pad, and the upper end of bumper shock absorber 605 is articulated with first mount pad, and the lower extreme of bumper shock absorber 605 is articulated with first installing support 901, and when controlling the wheel and jumping, bumper shock absorber 605 and damping spring 601 are its effect simultaneously, provide good shock attenuation for the vehicle.
In this embodiment, the first mounting bracket 901 extends downward of the rear axle 9, and the lower end of the damper 605 is hinged to the lower end of the first mounting bracket 901, so that the distance between the rear axle 9 and the bottom of the vehicle body 8 can be shortened, and the mounting space can be saved.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. An integral bridge watt linkage composite suspension comprising:
The front end of the left longitudinal arm (1) is hinged with the left side of the vehicle body (8), and the rear end of the left longitudinal arm (1) is connected with the left end of the rear axle (9); the front end of the right longitudinal arm (2) is hinged with the right side of the vehicle body (8), and the rear end of the right longitudinal arm (2) is connected with the right end of the rear axle (9);
The connecting arm (3) is arranged along the height direction of the vehicle body (8), the middle part of the connecting arm (3) is hinged with the connecting piece (10), and the connecting piece (10) is fixedly connected with the bottom of the vehicle body (8);
The left transverse connecting rod (4) and the right transverse connecting rod (5), one end of the left transverse connecting rod (4) is hinged with the left end of the rear axle (9), and the other end of the left transverse connecting rod (4) is hinged with one end of the connecting arm (3); one end of the right transverse connecting rod (5) is hinged with the right end of the rear axle (9), and the other end of the right transverse connecting rod (5) is hinged with the other end of the connecting arm (3);
The left shock absorption mechanism (6) and the right shock absorption mechanism (7), the lower end of the left shock absorption mechanism (6) is connected with the left end of the rear axle (9), and the upper end of the left shock absorption mechanism (6) is connected with the left side of the bottom of the vehicle body (8); the lower end of the right shock absorption mechanism (7) is connected with the right end of the rear axle (9), and the upper end of the right shock absorption mechanism (7) is connected with the right side of the bottom of the vehicle body (8);
the left damping mechanism (6) and the right damping mechanism (7) comprise damping springs (601) and dampers (605);
the bottoms of the two ends of the rear axle (9) are provided with first mounting brackets (901), the two sides of the bottom of the vehicle body (8) are provided with first mounting seats, the upper end of the shock absorber (605) is hinged with the first mounting seats, and the lower end of the shock absorber (605) is hinged with the first mounting brackets (901);
The first mounting bracket (901) extends downwards to the rear axle (9), and the lower end of the shock absorber (605) is hinged with the lower end of the first mounting bracket (901);
One end of the connecting piece (10) is fixedly connected with the left side of the vehicle body (8), the other end of the connecting piece (10) is fixedly connected with the right side of the vehicle body (8), and the middle part of the connecting arm (3) is hinged with the middle part of the connecting piece (10);
The bottoms of the two ends of the rear axle (9) are respectively provided with a second mounting bracket (902), the rear ends of the left longitudinal arm (1) and the right longitudinal arm (2) are respectively provided with two second bushings (102), and the second bushings (102) are connected with the second mounting brackets (902) through bolts;
the two ends of the rear axle (9) are provided with supporting shafts (903) extending backwards, and one ends of the left transverse connecting rod (4) and the right transverse connecting rod (5) far away from the connecting arm (3) are hinged with the corresponding supporting shafts (903).
2. The integral bridge watt linkage composite suspension of claim 1 wherein: the left end and the right end of the rear axle (9) are provided with a spring lower seat (602), two sides of the bottom of the vehicle body (8) are provided with a spring upper seat (603), the lower end of the damping spring (601) is fixedly connected with the spring lower seat (602), and the upper end of the damping spring (601) is fixedly connected with the spring upper seat (603).
3. The integral bridge watt linkage composite suspension of claim 2 wherein: and a buffer block (604) is arranged on the upper spring seat (603) or the lower spring seat (602).
4. The integral bridge watt linkage composite suspension of claim 1 wherein: the middle part of rear axle (9) is equipped with actuating mechanism (11), actuating mechanism (11) are including driving motor (1101) and reduction gear (1102), and the output shaft of driving motor (1101) passes through reduction gear (1102) and is connected with the drive shaft of rear axle (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111347769.7A CN113895199B (en) | 2021-11-15 | 2021-11-15 | Integral bridge type watt connecting rod composite suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111347769.7A CN113895199B (en) | 2021-11-15 | 2021-11-15 | Integral bridge type watt connecting rod composite suspension |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113895199A CN113895199A (en) | 2022-01-07 |
| CN113895199B true CN113895199B (en) | 2024-06-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111347769.7A Active CN113895199B (en) | 2021-11-15 | 2021-11-15 | Integral bridge type watt connecting rod composite suspension |
Country Status (1)
| Country | Link |
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| CN (1) | CN113895199B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215971001U (en) * | 2021-11-15 | 2022-03-08 | 四川野马汽车股份有限公司 | Integral bridge type watt connecting rod composite suspension |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3705133B2 (en) * | 2001-01-09 | 2005-10-12 | 日産自動車株式会社 | Rear suspension device |
| KR100911398B1 (en) * | 2008-04-08 | 2009-08-11 | 현대자동차주식회사 | Suspension of coupled torsion beam axle type |
| DE102009031846A1 (en) * | 2009-07-03 | 2011-01-05 | GM Global Technology Operations, Inc., Detroit | Rear axle of the compound type of steering wheel for motor vehicles |
| DE102011050807B4 (en) * | 2011-06-01 | 2014-07-24 | Ford Global Technologies, Llc | Twist-beam axle with additional Watt linkage |
| CN206406716U (en) * | 2017-01-12 | 2017-08-15 | 上海燃料电池汽车动力系统有限公司 | Automobile integral bridge type suspension frame structure |
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2021
- 2021-11-15 CN CN202111347769.7A patent/CN113895199B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215971001U (en) * | 2021-11-15 | 2022-03-08 | 四川野马汽车股份有限公司 | Integral bridge type watt connecting rod composite suspension |
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| CN113895199A (en) | 2022-01-07 |
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