CN107458166A - A kind of draft hitch - Google Patents

A kind of draft hitch Download PDF

Info

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
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
Application number
CN201710639151.5A
Other languages
Chinese (zh)
Inventor
周磊磊
任思义
王成立
葛士显
洪学臣
杨巩
陈云
韩丽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Jianghuai Automobile Group Corp
Original Assignee
Anhui Jianghuai Automobile Group Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anhui Jianghuai Automobile Group Corp filed Critical Anhui Jianghuai Automobile Group Corp
Priority to CN201710639151.5A priority Critical patent/CN107458166A/en
Publication of CN107458166A publication Critical patent/CN107458166A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/14Resilient suspensions characterised by arrangement, location or kind of springs having helical, spiral or coil springs only
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/14Resilient suspensions characterised by arrangement, location or kind of springs having helical, spiral or coil springs only
    • B60G11/16Resilient 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

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

A kind of draft hitch
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.
CN201710639151.5A 2017-07-31 2017-07-31 A kind of draft hitch Pending CN107458166A (en)

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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (7)

* Cited by examiner, † Cited by third party
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

Patent Citations (7)

* Cited by examiner, † Cited by third party
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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Similar Documents

Publication Publication Date Title
US3333654A (en) Motor vehicle suspension
US4029335A (en) Fifth wheels for truck tractors
CN202986705U (en) MacPherson type suspension for automobile
US6375203B1 (en) Front air spring suspension with leading arm trailing and V-link
US20050006868A1 (en) Control rod suspension with outboard shock
CN101321639B (en) Anti-roll bar for motor vehicles
US6676160B2 (en) Rear frame rail that incorporates leaf spring clearance zone
US3177965A (en) Link type independent wheel suspension for vehicles
CN107458166A (en) A kind of draft hitch
CN102848872B (en) Automobile air spring loaded double cross arm independent suspension device
CN106515334A (en) Front independent suspension mechanism
CN206406716U (en) Automobile integral bridge type suspension frame structure
CN203752819U (en) Front suspension frame assembly with square auxiliary frame
US3726542A (en) Vehicle banking arm construction
CN201784422U (en) Wheel suspension device for front wheels of automobile
US2159203A (en) Spring suspension
US3193042A (en) Road vehicle suspension
US2215826A (en) Vehicle suspension system
US20080303237A1 (en) Idividual Wheel Suspension
US3741329A (en) Chassis suspension on vehicle frame
CN206336078U (en) A kind of wishbone-type independent suspension and automobile with torsion-bar spring
CN208101605U (en) A kind of picking-up vehicle suspension assembly
EP3784509A1 (en) Wheel suspension system
CN202016380U (en) Independent suspension apparatus of automobile
CN213892085U (en) Multi-link type rear suspension and vehicle

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
RJ01 Rejection of invention patent application after publication

Application publication date: 20171212