CN107458166A - A kind of draft hitch - Google Patents
A kind of draft hitch Download PDFInfo
- Publication number
- CN107458166A CN107458166A CN201710639151.5A CN201710639151A CN107458166A CN 107458166 A CN107458166 A CN 107458166A CN 201710639151 A CN201710639151 A CN 201710639151A CN 107458166 A CN107458166 A CN 107458166A
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- vehicle frame
- draft hitch
- helical spring
- bushing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/14—Resilient suspensions characterised by arrangement, location or kind of springs having helical, spiral or coil springs only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/14—Resilient suspensions characterised by arrangement, location or kind of springs having helical, spiral or coil springs only
- B60G11/16—Resilient suspensions characterised by arrangement, location or kind of springs having helical, spiral or coil springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a kind of draft hitch, the both sides of drive axle are symmetricly set on, including：Lower swing arm, helical spring and connecting rod, the both ends of lower swing arm are rotatablely connected with drive axle and vehicle frame respectively；The both ends of connecting rod are rotatablely connected with drive axle and vehicle frame respectively.The longitudinal axis of connecting rod and vehicle frame has angle, the focus of the extended line of the connecting rod of both sides is located at the rear of vehicle frame, the focus is the roll center of suspension, because the position of the front end of connecting rod is higher than the position of the rear end of connecting rod, i.e. roll center is located above suspension, and roll center is higher, can reduce moment resulting from sidesway, the angle of heel of vehicle body when being advantageous to reduce Turning travel, the control stability of vehicle can be improved.This draft hitch substitutes used leaf spring in the prior art using helical spring, reduces the weight of suspension, is advantageous to improve the fuel economy and control stability of vehicle, and the dynamic stiffness of helical spring is small, is more beneficial for improving the ride comfort of vehicle.
Description
Technical field
The present invention relates to the technical field of automobile chassis suspension system, especially a kind of draft hitch.
Background technology
Suspension is the important assembly of Hyundai Motor, and its effect is that vehicle frame is flexibly connected with vehicle bridge, main to appoint
Business is that power and torque are transmitted between vehicle and vehicle frame, relaxes the shock loading that Uneven road is transmitted to vehicle frame, decay vibration, and isolation comes
The noise inputted from ground, tire, the characteristics of motion of wheel is controlled, to ensure that automobile has riding comfort in need and manipulation
Stability.
Existing draft hitch as shown in Figure 1, the suspension are driving bridge-type rigid axle suspension structure, including：The ＇ of drive axle 1,
The ＇ of leaf spring 2 is fixed on the ＇ of drive axle 1 by the ＇ of leaf spring 2, the ＇ of U-bolts 3, the ＇ of stabiliser bar 4 and connecting rod 5 ＇, the ＇ of U-bolts 3
On, the ＇ of stabiliser bar 4 one end is fixed on the ＇ of drive axle 1, and the ＇ of stabiliser bar 4 other end is rotatablely connected with the ＇ of connecting rod 5 one end, connecting rod
The 5 ＇ other end is fixedly connected with vehicle frame.By the ＇ of leaf spring 2 and the ＇ collective effects of connecting rod 5, playing prevents from rolling, decaying vibration
Effect.Because the ＇ own wts of leaf spring 2 are big, it is unfavorable for vehicle light-weight design, and by the ＇ of leaf spring 2 dynamic stiffness
Limitation, cause the regularity and stability of operation poor.
The content of the invention
It is an object of the invention to provide a kind of draft hitch, solve big existing sprung mass, smooth operation and stably
The problem of property difference.
To solve the above problems, the invention provides a kind of draft hitch, the both sides of drive axle are symmetricly set on, wherein,
Including：Lower swing arm, helical spring and connecting rod, one end of the lower swing arm are rotatablely connected with the drive axle, the lower swing arm
The other end is rotatablely connected with vehicle frame；One end of the helical spring is fixed on the lower swing arm, the helical spring it is another
End abuts with the vehicle frame；The front end of the connecting rod is rotatablely connected with the drive axle, the rear end of the connecting rod and the vehicle frame
Rotation connection；The longitudinal axis of the connecting rod and the vehicle frame has angle, and the focus of the extended line of the connecting rod of both sides is located at institute
State the rear of vehicle frame；Position of the position of the front end of the connecting rod higher than the rear end of the connecting rod.
Preferably, the lower swing arm includes first sleeve, the first bushing and main body, and described is placed in first bushing
In sleeve, the first sleeve is laterally fixedly installed on the both ends of the main body.
Preferably, the main body includes upper plate and lower plate, and the upper plate is tabular, and the section of the lower plate is in U-shaped, institute
Upper plate is stated to be fixedly installed in the opening of the lower plate.
Preferably, the upper plate is provided with guide through hole, and the lower plate is provided with guide ledges, and the helical spring is coated at institute
State in guide ledges, the diameter of the guide through hole is more than the diameter of the helical spring.
Preferably, the size of the main body is gradually increased from both ends to the guide through hole direction.
Preferably, first bushing is arranged with two first flutings in the horizontal direction.
Preferably, the connecting rod includes the second sleeve pipe, the second bushing and the body of rod, and described second is placed in second bushing
In sleeve pipe, second sleeve pipe is laterally fixedly installed on the both ends of the body of rod.
Preferably, second bushing is provided with four second flutings, and second fluting is located at second bushing respectively
Upper and lower end and left and right end.
Preferably, in addition to shock absorber, the both ends of the shock absorber connect the drive axle and the vehicle frame respectively；It is described
Shock absorber deflection arranges that the upper end of the shock absorber is to the centroclinal of the vehicle frame, and the lower end of the shock absorber is close to wheel.
Preferably, in addition to cushion blocking, the cushion blocking are fixedly installed on the upper end of the helical spring, the cushion blocking
Upper surface and the vehicle frame coordinate.
The beneficial effects of the present invention are：
The invention provides a kind of draft hitch, the both sides of drive axle are symmetricly set on, including：Lower swing arm, helical spring
And connecting rod, the both ends of lower swing arm are rotatablely connected with drive axle and vehicle frame respectively；The both ends of connecting rod turn with drive axle and vehicle frame respectively
Dynamic connection.The longitudinal axis of connecting rod and vehicle frame has angle, and the focus of the extended line of the connecting rod of both sides is located at the rear of vehicle frame, the focus
The as roll center of suspension, because the position of the front end of connecting rod is higher than the position of the rear end of connecting rod, i.e., roll center is positioned at outstanding
Above frame, roll center is higher, can reduce moment resulting from sidesway, the angle of heel of vehicle body when being advantageous to reduce Turning travel, can be with
Improve the control stability of vehicle.This draft hitch substitutes used leaf spring in the prior art, drop using helical spring
The low weight of suspension, be advantageous to improve the fuel economy and control stability of vehicle, and the dynamic stiffness of helical spring
It is small, it is more beneficial for improving the ride comfort of vehicle.
Brief description of the drawings
Fig. 1 is the schematic diagram of draft hitch of the prior art；
Fig. 2 is the schematic diagram of draft hitch provided in an embodiment of the present invention；
Fig. 3 is the sectional view of main body；
Fig. 4 is the schematic diagram of lower swing arm；
Fig. 5 is the schematic diagram of connecting rod.
Reference is as follows：
1 ＇-drive axle, 2 ＇-leaf spring, 3 ＇-U-bolts, 4 ＇-stabiliser bar, 5 ＇-connecting rod；
1- lower swing arms, 11- first sleeves, the bushings of 12- first, 121- first slot, under 13- main bodys, 131- upper plates, 132-
Plate, 133- guide through hole, 2- helical springs, 3- connecting rods, the sleeve pipes of 31- second, the bushings of 32- second, 321- second slot, 33- bars
Body, 4- cushion blockings, 5- drive axles, 6- shock absorbers.
Embodiment
Embodiments of the invention are described below in detail, the example of embodiment is shown in the drawings, wherein identical from beginning to end
Or similar label represents same or similar element or the element with same or like function.Retouched below with reference to accompanying drawing
The embodiment stated is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
As shown in Fig. 2 the embodiments of the invention provide a kind of draft hitch, the both sides of drive axle 5 are symmetricly set on, its
In, including：Lower swing arm 1, helical spring 2 and connecting rod 3, one end and the drive axle 5 of lower swing arm 1 are rotatablely connected, lower swing arm 1 it is another
End is rotatablely connected with vehicle frame (not shown)；One end of helical spring 2 is fixed on lower swing arm 1, the other end of helical spring 2
Abutted with vehicle frame；The front end of connecting rod 3 is rotatablely connected with drive axle 5, and rear end and the vehicle frame of connecting rod 3 are rotatablely connected.Connecting rod 3 and vehicle frame
The longitudinal axis there is angle, the focus of the extended line of the connecting rod 3 of both sides is located at the rear of vehicle frame, and the focus is in the inclination of suspension
The heart, because the position of the front end of connecting rod 3 is higher than the position of the rear end of connecting rod 3, i.e. roll center is located above suspension, roll center
Compare high, moment resulting from sidesway can be reduced, the angle of heel of vehicle body, the manipulation that can improve vehicle are steady when being advantageous to reduce Turning travel
It is qualitative.In order to reduce the vibration that wheel transmits, draft hitch also includes shock absorber 6, and the both ends of shock absorber 6 connect drive axle respectively
5 and vehicle frame；The deflection of shock absorber 6 arranges, the upper end of shock absorber 6 to the centroclinal of vehicle frame, the lower end of shock absorber 6 close to wheel,
Be advantageous to improve anti-rolling capability.This draft hitch substitutes used leaf spring in the prior art using helical spring 2, drop
The low weight of suspension, be advantageous to improve the fuel economy and control stability of vehicle, and the dynamic stiffness of helical spring 2
It is small, it is more beneficial for improving the ride comfort of vehicle.
Refer to shown in Fig. 2 and Fig. 4, further, lower swing arm 1 includes first sleeve 11, the first bushing 12 and main body 13,
It is placed in first bushing 12 in first sleeve 11, first sleeve 11 is laterally fixedly installed on the both ends of main body 13.Pass through first set
The bushing 12 of pipe 11 and first is engaged, and the rotation connection at the both ends of lower swing arm 1 can be better achieved, and reduces frictional force, convenient maintenance.
As shown in figure 3, further, main body 13 includes upper plate 131 and lower plate 132, and upper plate 131 is tabular, lower plate 132
Section be in U-shaped, upper plate 131 is fixedly installed in the opening of lower plate 132.Upper plate 131 and lower plate 132 form a cavity,
In the case of meeting intensity, the quality of lower swing arm 1 is alleviated, is favorably improved the lightweight of vehicle.
Further, upper plate 131 is provided with guide through hole 133, and lower plate 132 is provided with guide ledges (not shown), spiral
Spring 2 is coated in guide ledges, and the diameter of guide through hole 133 is more than the diameter of helical spring 2.This is compact-sized, spiral bullet
Spring 2 is not susceptible to play, fixed reliable.
Further, the size of main body 13 is gradually increased from both ends to the direction of guide through hole 133.Lower swing arm 1 is removed and born
Outside longitudinal force, the vertical force of the application of helical spring 2 is also subjected to, thus it is wide in the opening position section of guide through hole 133 in main body 13
Degree becomes big, to reduce stress.
As shown in figure 4, further, the first bushing 12 is arranged with two first flutings 121 in the horizontal direction.Lower swing arm
1 bushing is provided with two first flutings 121 in the horizontal direction, i.e. performance level analysis is smaller, and longitudinal direction is also easy to produce during wheel movement and is shaken
Dynamic, this vibration can pass to vehicle body by suspension, show as noise, make the first bushing by the first fluting 121 of lower swing arm 1
12 generation linear deformations can eliminate the noise of tire.
Refer to shown in Fig. 2 and Fig. 5, further, connecting rod 3 includes the second sleeve pipe 31, the second bushing 32 and the body of rod 33, the
It is placed in two bushings 32 in second sleeve pipe 31, the second sleeve pipe 31 is laterally fixedly installed on the both ends of the body of rod 33.Pass through the second sleeve pipe
31 and second bushing 32 be engaged, can be better achieved the rotation connection at the both ends of connecting rod 3, reduce frictional force, convenient maintenance.
Further, the second bushing 32 is provided with four second flutings 321, and the second fluting 321 is located at the second bushing 32 respectively
Upper and lower end and left and right end.For second bushing 32 when load is smaller along the vertical direction, the rigidity of the second bushing 32 is smaller, with load
Increase, rigidity increase, so as to improve ride comfort；Rigidity in the horizontal direction is also in nonlinear change, can coordinate the first bushing
12, make drive axle 5 in steering or curve maneuver, the bottom because of caused by wheel bob is eliminated by rubber deformation
Arm 1 and connecting rod 3 move and caused length change, so as to ensure the movement locus of drive axle 5, improve control stability.
Further, in addition to cushion blocking 4, cushion blocking 4 are fixedly installed on the upper end of helical spring 2, the upper end of cushion blocking 4
Face coordinates with vehicle frame, to suppress the vibration that road surface is transmitted.
Construction, feature and the action effect of the present invention is described in detail according to the embodiment shown in schema above, the above is only
For presently preferred embodiments of the present invention, but the present invention is not to limit practical range, every conception institute according to the present invention shown in drawing
The change of work, or the equivalent embodiment of equivalent variations is revised as, all should when still without departing from specification and illustrating covered spirit
Within the scope of the present invention.
Claims (10)
1. a kind of draft hitch, it is symmetricly set on the both sides of drive axle (5), it is characterised in that including：
Lower swing arm (1), one end of the lower swing arm (1) are rotatablely connected with the drive axle (5), the lower swing arm (1) it is another
End is rotatablely connected with vehicle frame；
Helical spring (2), one end of the helical spring (2) are fixed on the lower swing arm (1), the helical spring (2)
The other end abuts with the vehicle frame；
Connecting rod (3), the front end of the connecting rod (3) are rotatablely connected with the drive axle (5), the rear end of the connecting rod (3) with it is described
Vehicle frame is rotatablely connected；The connecting rod (3) and the longitudinal axis of the vehicle frame have angle, the extended line of the connecting rod (3) of both sides
Focus is located at the rear of the vehicle frame；Position of the position of the front end of the connecting rod (3) higher than the rear end of the connecting rod (3).
2. draft hitch according to claim 1, it is characterised in that the lower swing arm (1) includes first sleeve (11), the
One bushing (12) and main body (13), first bushing (12) is interior to be placed in the first sleeve (11), the first sleeve
(11) both ends of the main body (13) are laterally fixedly installed on.
3. draft hitch according to claim 2, it is characterised in that the main body (13) includes upper plate (131) and lower plate
(132), the upper plate (131) is tabular, and the section of the lower plate (132) is in U-shaped, and the upper plate (131) is fixedly installed on
In the opening of the lower plate (132).
4. draft hitch according to claim 3, it is characterised in that the upper plate (131) is provided with guide through hole (133),
The lower plate (132) is provided with guide ledges, and the helical spring (2) is coated in the guide ledges, the guide through hole
(133) diameter is more than the diameter of the helical spring (2).
5. draft hitch according to claim 4, it is characterised in that the size of the main body (13) is from both ends to described
Guide through hole (133) direction gradually increases.
6. draft hitch according to claim 5, it is characterised in that first bushing (12) symmetrically sets in the horizontal direction
There are two first flutings (121).
7. draft hitch according to claim 6, it is characterised in that the connecting rod (3) includes the second sleeve pipe (31), second
Bushing (32) and the body of rod (33), second bushing (32) is interior to be placed in second sleeve pipe (31), second sleeve pipe (31)
Laterally it is fixedly installed on the both ends of the body of rod (33).
8. draft hitch according to claim 7, it is characterised in that second bushing (32) is provided with four second flutings
(321), second fluting (321) is located at the upper and lower end of second bushing (32) and left and right end respectively.
9. draft hitch according to claim 1, it is characterised in that also including shock absorber (6), the shock absorber (6)
Both ends connect the drive axle (5) and the vehicle frame respectively；Shock absorber (6) the deflection arrangement, the upper end of the shock absorber (6)
To the centroclinal of the vehicle frame, the lower end of the shock absorber (6) is close to wheel.
10. according to the draft hitch any one of claim 1-9, it is characterised in that described also including cushion blocking (4)
Cushion blocking (4) is fixedly installed on the upper end of the helical spring (2), and upper surface and the vehicle frame of the cushion blocking (4) coordinate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710639151.5A CN107458166A (en) | 2017-07-31 | 2017-07-31 | A kind of draft hitch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710639151.5A CN107458166A (en) | 2017-07-31 | 2017-07-31 | A kind of draft hitch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107458166A true CN107458166A (en) | 2017-12-12 |
Family
ID=60547760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710639151.5A Pending CN107458166A (en) | 2017-07-31 | 2017-07-31 | A kind of draft hitch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107458166A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108357315A (en) * | 2018-04-02 | 2018-08-03 | 北京汽车研究总院有限公司 | A kind of vibration damper assembly and automobile |
| CN112032175A (en) * | 2020-09-03 | 2020-12-04 | 浙江力友汽车科技有限公司 | Moment and corner added chassis riding bolt tightening process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004050906A (en) * | 2002-07-17 | 2004-02-19 | Chuo Spring Co Ltd | Suspension coil spring |
| CN201437320U (en) * | 2009-06-30 | 2010-04-14 | 东风汽车公司 | Novel four-bar independent suspension device for vehicle |
| CN201863666U (en) * | 2010-10-29 | 2011-06-15 | 浙江吉奥汽车有限公司 | Automobile and suspension device thereof |
| CN202413324U (en) * | 2011-11-29 | 2012-09-05 | 广汽吉奥汽车有限公司 | Automobile rear wheel suspension device |
| CN104936803A (en) * | 2012-11-16 | 2015-09-23 | 日本发条株式会社 | Suspension device and coiled compression spring for suspension device |
| CN204674326U (en) * | 2015-01-27 | 2015-09-30 | 长城汽车股份有限公司 | A kind of rear overhang rack coil spring assembly and rear overhang rack assembly and automobile |
| JP2016064677A (en) * | 2014-09-22 | 2016-04-28 | 富士重工業株式会社 | Suspension device |
-
2017
- 2017-07-31 CN CN201710639151.5A patent/CN107458166A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004050906A (en) * | 2002-07-17 | 2004-02-19 | Chuo Spring Co Ltd | Suspension coil spring |
| CN201437320U (en) * | 2009-06-30 | 2010-04-14 | 东风汽车公司 | Novel four-bar independent suspension device for vehicle |
| CN201863666U (en) * | 2010-10-29 | 2011-06-15 | 浙江吉奥汽车有限公司 | Automobile and suspension device thereof |
| CN202413324U (en) * | 2011-11-29 | 2012-09-05 | 广汽吉奥汽车有限公司 | Automobile rear wheel suspension device |
| CN104936803A (en) * | 2012-11-16 | 2015-09-23 | 日本发条株式会社 | Suspension device and coiled compression spring for suspension device |
| JP2016064677A (en) * | 2014-09-22 | 2016-04-28 | 富士重工業株式会社 | Suspension device |
| CN204674326U (en) * | 2015-01-27 | 2015-09-30 | 长城汽车股份有限公司 | A kind of rear overhang rack coil spring assembly and rear overhang rack assembly and automobile |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108357315A (en) * | 2018-04-02 | 2018-08-03 | 北京汽车研究总院有限公司 | A kind of vibration damper assembly and automobile |
| CN108357315B (en) * | 2018-04-02 | 2024-01-19 | 北京汽车集团越野车有限公司 | Shock absorber assembly and car |
| CN112032175A (en) * | 2020-09-03 | 2020-12-04 | 浙江力友汽车科技有限公司 | Moment and corner added chassis riding bolt tightening process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171212 |
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| RJ01 | Rejection of invention patent application after publication |