CN103660829A - McPherson automobile front suspension structure - Google Patents

McPherson automobile front suspension structure Download PDF

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Publication number
CN103660829A
CN103660829A CN201310672923.7A CN201310672923A CN103660829A CN 103660829 A CN103660829 A CN 103660829A CN 201310672923 A CN201310672923 A CN 201310672923A CN 103660829 A CN103660829 A CN 103660829A
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shock absorber
support
shaped support
swing arm
suspension structure
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CN201310672923.7A
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CN103660829B (en
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侯建勇
韩权武
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Beijing Changan Automobile Engineering Technology Research Co Ltd
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Beijing Changan Automobile Engineering Technology Research Co Ltd
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Abstract

The invention relates to a McPherson automobile front suspension structure. The McPherson automobile front suspension structure comprises a spiral spring, a telescopic shock absorber, a lower swing arm, a steering knuckle and a shock absorber support. The telescopic shock absorber is sleeved with the spiral spring. The lower end of the steering knuckle is hinged to the end outside the lower swing arm through a lower ball head. The front suspension structure further comprises an inverted U-shaped support, two feet at the lower end of the inverted U-shaped support are arranged in a straddle mode and hinged to the lower swing arm, a vertical supporting plate and a transverse supporting plate are arranged at the upper end of the inverted U-shaped support, the vertical supporting plate stretches out upwards, and the transverse supporting plate stretches out of the outer side of an automobile body. The upper end of the steering knuckle is hinged to the tail end of the transverse supporting plate through an upper ball head, and the lower end of the telescopic shock absorber is fixed to the vertical supporting plate of the inverted U-shaped support through the shock absorber support. In the steering process of front wheels of an automobile, front supporting columns cannot rotate along with the front wheels, and therefore steering friction force can be reduced, wear-out failure of the front supporting columns is reduced, and the fatigue life of the front supporting columns is prolonged. In addition, the McPherson automobile front suspension structure further has the kingpin inclination angle adjustment function, and control stability and adjustment of the whole automobile can be achieved.

Description

A kind of MacPherson type automobile front suspension structure
Technical field
The invention belongs to automobile running system technology, be specifically related to a kind of MacPherson type automobile front suspension structure.
Background technology
Suspension is the power transmission connecting device between vehicle frame (or self-supporting body) and vehicle bridge (or wheel), its function be road surface act on vertical reaction (bearing force) on wheel, moment that longitudinally counter-force (tractive force and braking force) and lateral reaction and these counter-forces cause all will be delivered to vehicle frame (or self-supporting body) and go up, to guarantee normally travelling of automobile.Suspension, as one of automobile chief component, affects the performances such as automobile ride, handling stability, crossing ability, is the key areas of automobile design, research.
The form of automotive suspension is divided into two kinds of dependent suspension and independent suspensions.
The wheel of dependent suspension is contained in the two ends of a whole axletree, when the wheel bounce of one side, affecting opposite side wheel also beats accordingly, make whole body vibrations or inclination, stationarity and the traveling comfort of automobile are poor, but because structure is simpler, bearing capacity is large, still has at present the rear suspension of part car to adopt this pattern.
The axletree of independent suspension is divided into two sections, and every wheel is arranged on vehicle frame (or vehicle body) below independently with coil spring, and when a sidecar wheel is beated, another side wheel is not involved, and the stationarity of automobile and traveling comfort are good.Modern Car fore suspension and rear suspension has mostly adopted independent suspension, and has become a kind of development tendency.But this suspension structure is more complicated, and bearing capacity is little.
Independent suspension is different by version, can be divided into again wish-bone arm type, trailing arm type, many link-types, candle formula and MacPherson type etc.
MacPherson strut is one of classical car suspension of american car engineer Mai Fuxun design, it comprises coil spring, telescopic shock absorber, lower swing arm and steering swivel, keystone configuration is simple is exactly that coil spring is sleeved on and on telescopic shock absorber, forms front standing pillar, the lower end of steering swivel is hinged by the termination, outside of ball end and lower swing arm, and the upper end of steering swivel is fixedly connected with the lower end of telescopic shock absorber by shock absorber support.When telescopic shock absorber can avoid coil spring stressed, to the phenomenon of front, rear, left and right skew, restriction coil spring can only be done the vibration of above-below direction, and can use stroke length and the degree of tightness of telescopic shock absorber, sets soft or hard and the performance of suspension.McPherson strut is because it is simple in structure, maintainability is good, be conducive to car load space layout, and domestic market A, B level car front suspension frame great majority all adopt this kind of suspension frame structure.
Yet with other forms of suspension frame structure comparison, traditional McPherson strut structure also exists shortcomings, wherein comprise following two kinds of major defects:
(1) in traditional McPherson strut structure, because the lower end of telescopic shock absorber is to be fixedly connected with the upper end of steering swivel by shock absorber support, between the two, there is no relative motion, steering swivel rotates, front standing pillar is followed rotation, its kingpin axis is the line of front standing pillar upper extreme point and lower swing arm place ball end, so, in the process turning at vehicle front, front standing pillar (comprises telescopic shock absorber, coil spring) can follow together and rotate, so just, increased and turned to friction force, increased the stressed complexity of coil spring, accelerated the wear out failure of front standing pillar, increased front standing pillar abnormal sound pattern.
(2) traditional McPherson strut structure can only regulate the middle toe-in value in four-wheel location by steering track rod, cannot adjust Kingpin inclination angle.
Summary of the invention
The object of the present invention is to provide a kind of MacPherson type automobile front suspension structure, in vehicle front steering procedure, its front standing pillar can not followed rotation, can reduce to turn to friction force, reduces the wear out failure of front standing pillar, extends its fatigue life.
Another object of the present invention is to realize the adjustable function of Kingpin inclination angle, so that car load is grasped steady adjustment.
MacPherson type automobile front suspension structure of the present invention, comprises coil spring, telescopic shock absorber, lower swing arm, steering swivel and shock absorber support, and described coil spring is sleeved on telescopic shock absorber; Lower bulb hinged is passed through on the termination, outside of lower swing arm in the lower end of described steering swivel.In order to realize in vehicle front steering procedure, its front standing pillar (comprising coil spring, telescopic shock absorber etc.) can not followed together and be rotated, special design a connection bracket, this connection bracket is inverted U-shaped support, two pin of the lower end of U-shaped support are sit-astride and arrange and be hinged on lower swing arm, the upper end of U-shaped support is provided with the perpendicular support plate protruding upward and the horizontal support plate stretching out to vehicle body outside, described perpendicular support plate is fixedly connected with telescopic shock absorber lower end by shock absorber support, and the upper end of described steering swivel is connected to the end of described horizontal support plate by upper bulb.
Further, on two pin of described U-shaped support, have relative pin-and-hole, on the middle part of described lower swing arm and the arm body between termination, outside, have the through hole of corresponding matching, a connecting pin is hinged on U-shaped support on lower swing arm through pin-and-hole and the through hole on lower swing arm on two pin of U-shaped support.
Further, described shock absorber support has the c-shaped tubular suit portion of cross-sectional plane, and the lower end of bumper is enclosed within the tubular suit portion of shock absorber support; Two vertical edges of the tubular suit portion of shock absorber support extend two flat boards, the perpendicular support plate of described U-shaped support upper end is installed between two flat boards, at two flat boards, all have corresponding bolt hole with on perpendicular support plate, by bolt, two flat boards are fixed together with perpendicular support plate, and by bumper lower end and shock absorber support locking.
The kingpin axis that such design forms traditional line by front standing pillar upper extreme point and lower swing arm place bulb is changed into the line of centres by the upper bulb of steering swivel upper end and the lower bulb of lower end as kingpin axis, therefore, in vehicle front steering procedure, its steering swivel rotates around the line of centres of upper bulb and lower bulb, but can not drive front standing pillar (telescopic shock absorber and coil spring etc.) to rotate together, reduced to turn to friction force, reduced the stressed complexity of coil spring, reduced wear out failure and the abnormal sound pattern of front standing pillar.
Further, in order to realize the adjustable of Kingpin inclination angle, the horizontal support plate end of described U-shaped support adopts eccentric nut for connecting the nut assembling in the hole of bulb, and described upper bulb was connected on described horizontal support plate by its ball end and coordinating of eccentric nut.By adjusting the eccentric orfice position of eccentric nut, the relative position that can realize between bulb and U-shaped support regulates, and then realizes the relative position adjusting between steering swivel and U-shaped support, thereby indirectly realizes the effect of adjusting Kingpin inclination angle.
Connection bracket of the present invention also can be designed as inverted Y shaped bracket.
The present invention has the following advantages:
(1) by the U-shaped support of particular design, with bulb, the horizontal support plate of U-shaped support and steering swivel upper end is hinged, steering swivel upper end in traditional front suspension and the mode that is fixedly connected with between telescopic shock absorber lower end are changed into and being flexibly connected, between steering swivel and U-shaped support, can relatively rotate, simultaneously, by the line of centres of the upper bulb of steering swivel upper end and the lower bulb of lower end as kingpin axis, in vehicle front steering procedure, its steering swivel rotates around the line of centres of upper bulb and lower bulb, but can not drive front standing pillar (telescopic shock absorber and coil spring etc.) to rotate together, reduced to turn to friction force, wear out failure and the abnormal sound pattern of front standing pillar have been reduced, extended the fatigue life of front standing pillar, and reduced the stressed complexity of coil spring, alleviated steering force.
(2) between the horizontal support plate of U-shaped support and upper bulb, by eccentric nut, be connected, by adjusting the eccentric orfice position of eccentric nut, the relative position that can realize between bulb and U-shaped support regulates, and then the relative position of realizing between steering swivel and U-shaped support regulates, thereby indirectly realized the effect of adjusting Kingpin inclination angle, be conducive to the adjustment of four wheel locating parameter, and then be conducive to realize car load and grasp steady adjustment.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention;
Fig. 2 is the scheme of installation of U-shaped support and lower swing arm;
Fig. 3 is the schematic diagram of U-shaped support;
Fig. 4 is the schematic diagram of lower swing arm;
Fig. 5 is the schematic diagram of eccentric nut;
Fig. 6 is the scheme of installation of the present invention and vehicle frame;
In figure: 1-coil spring, 2-telescopic shock absorber, 3-lower swing arm, 4-steering swivel, 5-shock absorber support, bulb under 6-, 7-U shape support, the upper bulb of 8-, 9-eccentric nut, 10-connecting pin, 11-subframe, 71-erects support plate, 72-horizontal support plate, 73-pin-and-hole.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As Fig. 1, described MacPherson type automobile front suspension structure, comprises coil spring 1, telescopic shock absorber 2, lower swing arm 3, steering swivel 4 and shock absorber support 5, and described coil spring 1 is sleeved on telescopic shock absorber 2; The lower end of described steering swivel 4 is hinged on by lower bulb 6 on the termination, outside of lower swing arm 3, and the inner side of lower swing arm 3 and automobile accessory frame 11 are fastenedly connected, and then whole front suspension is installed on subframe.
In order to realize in vehicle front steering procedure, its front standing pillar (comprises coil spring 1, telescopic shock absorber 2 etc.) can not follow together and rotate, special design a connection bracket, this connection bracket is inverted U-shaped support, two pin of U-shaped support 7 are sit-astride and arrange and be hinged on lower swing arm 3, on two pin of described U-shaped support 7 lower ends, have relative pin-and-hole 73, on the middle part of described lower swing arm 3 and the arm body between termination, outside, have the through hole of corresponding matching, one connecting pin 10 is hinged on U-shaped support 7 on lower swing arm 3 through the pin-and-hole 73 on two pin of U-shaped support and the through hole on lower swing arm.
In the upper end of U-shaped support 7, be provided with the perpendicular support plate 71 protruding upward and the horizontal support plate 72 stretching out to vehicle body outside, the upper end of described steering swivel 4 is hinged on the end of described horizontal support plate 72 by upper bulb 8, described telescopic shock absorber 2 lower ends are fixed on the perpendicular support plate of U-shaped support by shock absorber support 5.Described shock absorber support 5 has the c-shaped tubular suit portion of cross-sectional plane, and the lower end of telescopic shock absorber 2 is enclosed within the tubular suit portion of shock absorber support 5; Two vertical edges of the tubular suit portion of shock absorber support 5 extend two flat boards, the perpendicular support plate 71 of described U-shaped support 7 upper ends is installed between two flat boards, at two flat boards, all have corresponding bolt hole with on perpendicular support plate, by bolt, two flat boards are fixed together with perpendicular support plate, and by telescopic shock absorber lower end and shock absorber support locking.
The present invention is by the U-shaped support of particular design, with bulb, the horizontal support plate of U-shaped support and steering swivel upper end is hinged, steering swivel upper end in traditional front suspension and the mode that is fixedly connected with between telescopic shock absorber lower end are changed into and being flexibly connected, between steering swivel and U-shaped support, can relatively rotate, simultaneously, the kingpin axis that traditional line by front standing pillar upper extreme point and lower swing arm place ball end forms is changed into the line of centres by the upper bulb of steering swivel upper end and the lower bulb of lower end as kingpin axis, therefore, in vehicle front steering procedure, its steering swivel rotates around the line of centres of upper bulb and lower bulb, but can not drive front standing pillar (telescopic shock absorber and coil spring etc.) to rotate together, reduced to turn to friction force, reduced the stressed complexity of coil spring, wear out failure and the abnormal sound pattern of front standing pillar have been reduced.
In order to realize the adjustable of Kingpin inclination angle, horizontal support plate 72 ends of described U-shaped support 7 adopt eccentric nut 9 for connecting the nut assembling in the hole of bulb 8, and described upper bulb 8 was connected on described horizontal support plate 72 by its ball end and coordinating of eccentric nut 9.By adjusting the eccentric orfice position of eccentric nut, the relative position that can realize between bulb and U-shaped support regulates, and then realizes the relative position adjusting between steering swivel and U-shaped support, thereby indirectly realizes the effect of adjusting Kingpin inclination angle.
Connection bracket of the present invention can also be designed to inverted Y shaped bracket.

Claims (6)

1. a MacPherson type automobile front suspension structure, comprises coil spring (1), telescopic shock absorber (2), lower swing arm (3), steering swivel (4) and shock absorber support (5), and described coil spring is sleeved on telescopic shock absorber; The lower end of described steering swivel is hinged on the termination, outside of lower swing arm by lower bulb (6), it is characterized in that: this front suspension structure also comprises a connection bracket, connection bracket lower end is hinged on lower swing arm, upper end is fixedly connected with telescopic shock absorber lower end by shock absorber support (5), and the upper end of described steering swivel is hinged by upper bulb (8) and described connection bracket.
2. a kind of MacPherson type automobile front suspension structure according to claim 1, is characterized in that: described connection bracket is inverted U-shaped support or inverted Y shaped bracket.
3. a kind of MacPherson type automobile front suspension structure according to claim 2, it is characterized in that: described connection bracket is inverted U-shaped support, two pin of the lower end of described U-shaped support are sit-astride and arrange and be hinged on lower swing arm, in the upper end of U-shaped support, be provided with the perpendicular support plate (71) protruding upward and the horizontal support plate (72) stretching out to vehicle body outside, the upper end of described steering swivel is connected to the end of described horizontal support plate by upper bulb (8), described telescopic shock absorber lower end is fixed on the perpendicular support plate of U-shaped support by shock absorber support (5).
4. a kind of MacPherson type automobile front suspension structure according to claim 3, it is characterized in that: the horizontal support plate of described U-shaped support (72) end is eccentric nut (9) for connecting the nut assembling in the hole of bulb, and described upper bulb (8) was connected on described horizontal support plate by its ball end and coordinating of eccentric nut.
5. according to a kind of MacPherson type automobile front suspension structure described in claim 3 or 4, it is characterized in that: on two pin of described U-shaped support, have relative pin-and-hole (73), on the middle part of described lower swing arm and the arm body between termination, outside, have the through hole of corresponding matching, a connecting pin (10) is hinged on U-shaped support on lower swing arm through pin-and-hole and the through hole on lower swing arm on two pin of U-shaped support.
6. according to a kind of MacPherson type automobile front suspension structure described in claim 3 or 4, it is characterized in that: described shock absorber support (5) has the c-shaped tubular suit portion of cross-sectional plane, the lower end of bumper is enclosed within the tubular suit portion of shock absorber support; Two vertical edges of the tubular suit portion of shock absorber support extend two flat boards, the perpendicular support plate of described U-shaped support upper end is installed between two flat boards, at two flat boards, all have corresponding bolt hole with on perpendicular support plate, by bolt, two flat boards are fixed together with perpendicular support plate, and by bumper lower end and shock absorber support locking.
CN201310672923.7A 2013-12-12 2013-12-12 A kind of McPherson automobile front suspension structure Active CN103660829B (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103978859A (en) * 2014-04-11 2014-08-13 宁波莱姆格迪童车科技有限公司 Front suspension system for child automobile
CN104002665A (en) * 2014-04-25 2014-08-27 宁波莱姆格迪童车科技有限公司 Automobile for children
CN104309688A (en) * 2014-10-20 2015-01-28 安徽江淮汽车股份有限公司 Structure for adjusting camber angle and caster angle of wheel of independent suspension
CN104875574A (en) * 2015-06-23 2015-09-02 安徽江淮汽车股份有限公司 Macpherson independent suspension and knuckle assembly
CN106379158A (en) * 2016-10-24 2017-02-08 华东交通大学 Motor driving system for electric automobile hub
CN106985626A (en) * 2017-03-02 2017-07-28 浙江吉利新能源商用车有限公司 A kind of McPherson independent front suspension
CN107139674A (en) * 2017-03-31 2017-09-08 奇瑞汽车股份有限公司 A kind of rear suspension and automobile
CN110481255A (en) * 2019-08-23 2019-11-22 奇瑞汽车股份有限公司 Rear wheel suspension device and automobile
CN111950170A (en) * 2020-07-03 2020-11-17 中国第一汽车股份有限公司 Method for obtaining high-precision Macpherson front suspension knuckle rack test load

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CN101722807A (en) * 2009-12-25 2010-06-09 奇瑞汽车股份有限公司 Mcpherson suspension connecting structure
CN201520179U (en) * 2009-10-29 2010-07-07 上海通用汽车有限公司 MacPherson type suspension
CN202529037U (en) * 2011-12-30 2012-11-14 河北中兴汽车制造有限公司 MacPherson type front suspension
CN103121387A (en) * 2013-02-07 2013-05-29 柳州孔辉汽车科技有限公司 MacPherson air suspension and assembly method thereof
CN202986705U (en) * 2012-11-07 2013-06-12 上海通用汽车有限公司 MacPherson type suspension for automobile

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080197596A1 (en) * 2007-02-20 2008-08-21 Tenneco Automotive Operating Company Inc. Positioning feature and method for precise vehicle heights
CN201520179U (en) * 2009-10-29 2010-07-07 上海通用汽车有限公司 MacPherson type suspension
CN101722807A (en) * 2009-12-25 2010-06-09 奇瑞汽车股份有限公司 Mcpherson suspension connecting structure
CN202529037U (en) * 2011-12-30 2012-11-14 河北中兴汽车制造有限公司 MacPherson type front suspension
CN202986705U (en) * 2012-11-07 2013-06-12 上海通用汽车有限公司 MacPherson type suspension for automobile
CN103121387A (en) * 2013-02-07 2013-05-29 柳州孔辉汽车科技有限公司 MacPherson air suspension and assembly method thereof

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103978859A (en) * 2014-04-11 2014-08-13 宁波莱姆格迪童车科技有限公司 Front suspension system for child automobile
CN104002665A (en) * 2014-04-25 2014-08-27 宁波莱姆格迪童车科技有限公司 Automobile for children
CN104002665B (en) * 2014-04-25 2017-01-04 宁波市胜源技术转移有限公司 A kind of juvenile automobile
CN104309688A (en) * 2014-10-20 2015-01-28 安徽江淮汽车股份有限公司 Structure for adjusting camber angle and caster angle of wheel of independent suspension
CN104309688B (en) * 2014-10-20 2016-08-24 安徽江淮汽车股份有限公司 A kind of independently sprung wheels adjusts camber angle and back rake angle structure
CN104875574A (en) * 2015-06-23 2015-09-02 安徽江淮汽车股份有限公司 Macpherson independent suspension and knuckle assembly
CN106379158A (en) * 2016-10-24 2017-02-08 华东交通大学 Motor driving system for electric automobile hub
CN106985626A (en) * 2017-03-02 2017-07-28 浙江吉利新能源商用车有限公司 A kind of McPherson independent front suspension
CN107139674A (en) * 2017-03-31 2017-09-08 奇瑞汽车股份有限公司 A kind of rear suspension and automobile
CN107139674B (en) * 2017-03-31 2020-01-14 奇瑞新能源汽车技术有限公司 Rear suspension and car
CN110481255A (en) * 2019-08-23 2019-11-22 奇瑞汽车股份有限公司 Rear wheel suspension device and automobile
CN111950170A (en) * 2020-07-03 2020-11-17 中国第一汽车股份有限公司 Method for obtaining high-precision Macpherson front suspension knuckle rack test load
CN111950170B (en) * 2020-07-03 2022-10-25 中国第一汽车股份有限公司 Method for obtaining high-precision Macpherson front suspension knuckle rack test load

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