CN1047352C

CN1047352C - Suspension device of automobile

Info

Publication number: CN1047352C
Application number: CN95117056A
Authority: CN
Inventors: 李志东
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-10-23
Filing date: 1995-10-23
Publication date: 1999-12-15
Anticipated expiration: 2015-10-23
Also published as: CN1129177A

Abstract

The present invention relates to an automobile hanging device which is composed of elastic elements, a guide mechanism and a damping device. A connection mechanism is arranged between the front elastic element and the rear elastic element of the same side of an automobile, both ends of a pull rod 10 are connected with the front elastic element and the rear elastic element respectively through a triangular lifting lug hinged with a vehicle frame 1, a central bracket 11 of a balance-position device 8 is positioned in the central part, two balance springs 9, 9' are respectively positioned at both sides of the central bracket 11, the pull rod 10 penetrates through a transversal through hole 15 of the central bracket 11, and a balance brake 12 is arranged in a rectangular hole 14 of the central bracket 11 and is simultaneously braked with the automobile. The hanging device has the advantages of good damping effect and stable vehicle run, and can prolong the service life.

Description

The suspension gear of automobile

The present invention relates to the suspension gear of automobile, specifically, is a kind of mechanism that connects automobile homonymy fore suspension and rear suspension elastic element, and this bindiny mechanism is applicable to and connects the vertical elastic elements such as steel spring, coil spring of putting.

The elastic element that uses on modern bus and the truck is of a great variety, performance is different, generally steel spring, coil spring, torsion bar spring, gas spring and rubber spring are arranged than general-duty, any spring no matter, when automobile runs into irregular road surface and beats, can both absorb most of impact energy that wheel is subjected to, the vibration when having reduced driving.But, no matter adopt dependent suspension, still adopt the elastic element of independent suspension, the effect of its fore suspension and rear suspension elastic element all is independently, be independent of each other mutually, in the vehicle ' process, the vibration of front and back wheel is without any contact, the impact meeting that vehicle is subjected to if the direction of vibration of front and back wheel is opposite is bigger, the motion that falls after before vehicle body will produce, in addition, when four wheels during not on same plane or have a pair of horn ring stressed when big, then the Frame and Body skeleton will be subjected to certain torsion, therefore, adopt the suspension gear of this structure, elastic element is fragile, the Frame and Body skeleton also damages easily, simultaneously, also can cause the damage of goods or make the occupant feel uncomfortable.

The suspension gear that the purpose of this invention is to provide a kind of automobile, it makes automobile fore suspension and rear suspension elastic element have the good whole elastic performance, and effectiveness in vibration suppression is obvious.

The objective of the invention is to be achieved through the following technical solutions: adopting the vertical automobile homonymy of putting steel spring and coil spring as elastic element, before, set up a bindiny mechanism between the back elastic element, it comprises pull bar, balance position device and balanced brake, the two ends of pull bar respectively by with vehicle frame pivotally attached triangle hanger and before, back elastic element is connected, the balance position device comprises center frame and balance spring, before center frame places, the middle body of back elastic element, the top and the vehicle frame of center frame are connected, the bottom is provided with boss, boss is provided with cross through hole, pull bar passes through hole, and can in through hole, move, the front, bottom of center frame has rectangular opening, balanced brake is installed in the rectangular opening, balance spring has two, the both sides of center frame are placed in, balanced brake adopts the butterfly drg, the pull bar that passes through hole is sandwiched between two Friction disks of balanced brake, the oil pipe of balanced brake and automobile brake oil pipe are connected, lever connection simultaneously during car brakeing, thus bindiny mechanism is braked.

The forward and backward elastic element of automotive suspension adopts following several selection schemes, all can realize purpose of the present invention:

Forward and backward elastic element all adopts steel spring;

Forward and backward elastic element all adopts coil spring;

Preceding elastic element adopts coil spring, and back elastic element adopts steel spring.

Suspension gear of the present invention, the set betwixt bindiny mechanism of the forward and backward elastic element of homonymy acts on down, improved the vibration situation on uneven road surface in the vehicle traveling process, when if front-wheel or trailing wheel are subjected to up or down power, rotate up or down simultaneously around fixing round end with two triangle hangers of elastic element pivotally attached, the pull bar two ends all are subjected to pulling force or thrust, thereby applied a subsidiary load opposite with ground force to front and rear wheel, approximately can offset 1/2 amplitude, reduce the horizontal vibration of vehicle body.If the direction of vibration of front and rear wheel is opposite, amplitude is identical, approach zero by the vibration of whole vehicle body, at this moment, the effectiveness in vibration suppression of suspension gear of the present invention is best, and automobile can still keep horizontal motoring condition.When four wheels during not on same plane, because the effect of triangle hanger and pull bar makes front and rear wheel be subjected to identical power, the wheel at diagonal angle also just is subjected to identical power, thus this moment vehicle frame and body framwork can not be subjected to torsion, prolong the vehicle operation life-span.

Fig. 1 is the scheme drawing of suspension gear first embodiment of the present invention.

Fig. 2 is the scheme drawing of suspension gear second embodiment of the present invention.

Fig. 3 is the scheme drawing of suspension gear the 3rd embodiment of the present invention.

Fig. 4 is the scheme drawing of suspension gear the 4th embodiment of the present invention.

Fig. 5 is the assembly drowing of center frame and balanced brake, is balanced brake two parts to be assembled (a) and (c), (b) is the center frame that inserts pull bar.

Fig. 6 (a) and (b) be respectively that balanced brake is not braked the cutaway view with lever connection.

Fig. 7 (a) and (b) and (c) are respectively front elevation, lateral plan and the birds-eye vieies that is used to be connected right angle, the three holes hanger of steel spring.

Fig. 8 (a) and (b) and (c) be respectively front elevation, lateral plan and the birds-eye view that is used for right angle, the two holes hanger of connecting bolt spring.

Below in conjunction with drawings and Examples the present invention is described in detail.

In the embodiment shown in fig. 1, forward and backward elastic element be vertical put steel spring 2,2 ', existing steel spring is that an end is connected with being connected of support, an end hanger pin connects, it all is hanger pin companies that the present invention changes two ends into, and can freely swing.The front end of front spring spring 2 and rear leaf spring 2 ' the rear end connect with hanger 4 and 4 ' pin respectively, hanger 7,7 ' the right angle end pin-and-hole 27 is arranged, laterally and the vertical link end pin-and-

hole

22 and 28 are arranged respectively, as shown in Figure 7.Balanced brake 12 is used for when braking automobile, make pull bar 10 stop, to keep the stability of vehicle, as shown in Figure 6, balanced brake 12 is the cuboid member that adapts with center frame 11 rectangular openings 14, the inside of housing 31, the front portion is a cylindrical hole, the rear portion is a rectangular recess, and the front end of cylindrical hole has oil pipe 32 to pick out, in establish leather cup 37 and coupled piston 36, in rectangular recess, be provided with the movable slipper 33 that links to each other with piston 36, fixedly slipper 34 is bolted in the end of rectangular recess, and at movable slipper 33 with fixedly on slipper 34 opposite faces Friction disk 35 is housed respectively, oil pipe 32 is connected with the automobile brake oil pipe.The bindiny mechanism position of this embodiment is on the low side, is applicable to suspension gear small-sized, medium-sized, full-sized car.

Fig. 2 is the scheme drawing of second embodiment, and basic structure is identical with first embodiment, the difference be right angle, two three holes hanger 7,7 ' orthogonal configuration respectively towards forward and backward wheel 5,5 ' the top.Bindiny mechanism's position deviation of this embodiment is applicable to the suspension gear of miniature car.

Embodiment shown in Figure 3, before, back elastic element all is a coil spring 18,18 ', coil spring 18,18 ' the lower end respectively with Control arm 19,19 ' connect, the upper end respectively with right angle, two holes hanger 17,17 ' the socket of transverse link end, right angle, two holes hanger 17,17 ' the right angle end respectively with pin-connection in the inner support 26 that is connected with vehicle frame 1,26 ', right angle, two holes hanger 17,17 ' the transverse link end be cylindrical, see Fig. 8 (a), (b) and (c), in cylindrical, have annular low groove 24,24 ', be used for socket coil spring 18,18 ', the rear end of annular front spring spring 2 and rear leaf spring 2 ' front end respectively with right angle, three holes hanger 7 and 7 ' transverse link end pin joint, hanger 4,4 ' the other end and right angle, three holes hanger 7,7 ' the right angle end respectively with pin-connection in the limit support 3 that is connected with vehicle frame 1,3 ' and support 6,6 '.The present invention the forward and backward

steel spring

2,2 of automobile homonymy ' between set up a bindiny mechanism, make that forward and backward steel spring 2,2 ' by the original breakaway-element of independent action separately, becoming has interactional integral, flexible element.Bindiny mechanism is made of cylinder lever connecting rod 10, balance position device 8 and balanced brake 12, the two ends of pull bar 10 respectively with right angle, three holes hanger 7,7 ' vertical link end pin joint, right angle, two three holes hanger 7,7 ' orthogonal configuration respectively towards forward and backward wheel 5,5 ' the below, the section of pull bar 10 can be circular, square or rectangle, is good with rectangle.Center frame 11 in the balance position device 8 places two stands 6,6 ' the centre, its top is connected on the vehicle frame 1 by screw 21, the boss 13 of bottom has cross through hole 15, shown in Fig. 5 (b), through hole 15 is circular-arc perpendicular elongated hole for two ends, pull bar 10 passes through hole 15, the front of boss 13 has rectangular opening 14, two sides are provided with annular boss shape limit coil 20,20 ', two balance springs 9,9 ' respectively both sides of centering support 11, and be socketed on the pull bar 10, balance spring 9,9 ' an end be sleeved on limit coil 20,20 ' on, the other end is by the block 16 that is fixed on the pull bar 10,16 ' spacing, because balance spring 9,9 ' only play equilibrium activity, do not bear the weight of whole vehicle body, be easy to be compressed or stretch.Right angle, three holes low groove 24,24 ' lower bulge 20,29 ' center upper portion position be provided with upper groove 25,25 ', balance spring 9,9 ' the lower end embed.Wherein, balance spring 9,9 ' upper end and outer support 23,23 ' spring perch 30,30 ' be connected, the two ends of pull bar 10 connect with right angle, two holes hanger 17,17 ' vertical link end pin respectively, center frame 11 is sleeved on the middle part of pull bar 10, in the rectangular opening 14 of center frame 11 bottoms balanced brake 12 is housed, right angle, two holes hanger 17,17 ' the right angle towards the configuration of wheel 5,5 ' below, for stressed needs, right angle, two holes hanger 17,17 ' right angle pin-and-hole 27,27 ' diameter greater than vertical link end pin-and-hole 8,28 ' diameter.

Embodiment shown in Figure 4, preceding elastic element is a coil spring 18, back elastic element be steel spring 2 ', the hanger of front connecting bolt spring 18 and pull bar 10 is right angle, two holes hangers 17, the back connect steel spring 2 ' and pull bar 10 be right angle, three holes hanger 7 ', the structure of bindiny mechanism and connecting with embodiment 1.This embodiment is applicable to the suspension gear of C-class.

In addition, the pull bar 10 in the bindiny mechanism can not be the bar of fixed length also, adopts telescopic suit bar, and pull bar 10 can elongate or shorten along with beating of front and rear wheel, more helps the stability in the vehicle '.

Claims

1, a kind of suspension gear of automobile, it is by elastic element, guiding mechanism and shock attenuation unit are formed, elastic element is made up of preceding elastic element and back elastic element, before the automobile homonymy, between the back elastic element bindiny mechanism is set, it comprises pull bar (10), the two ends of pull bar (10) respectively by with vehicle frame (1) pivotally attached triangle hanger and before, back elastic element is connected, it is characterized in that: bindiny mechanism also comprises balance position device (8) and balanced brake (12), balance position device (8) comprises center frame (11) and balance spring (9,9 '), before center frame (11) places, the middle body of back elastic element, the top of center frame (11) and vehicle frame (1) are connected, the bottom is provided with boss (13), boss (13) is provided with cross through hole (15), pull bar (10) passes through hole (15), the front, bottom of center frame (11) has rectangular opening (14), balanced brake (12) is installed in the rectangular opening (14), two balance springs (9,9 ') both sides of centering support (11) respectively, balanced brake (12) adopts disc brake, the pull bar (10) that passes through hole (15) is sandwiched between two friction linings (35) of balanced brake, and the oil pipe (32) of balanced brake (12) is connected with the automobile brake oil pipe.

2, suspension gear according to claim 1, it is characterized in that: preceding, back elastic element is steel spring (2,2 '), the rear end of the front end of front spring spring (2) and rear leaf spring (2 ') respectively with hanger (4,4 ') pin even, described triangle hanger is right angle, three a holes hanger (7,7 '), its right angle end and the support (6 that is fixed in vehicle frame (1), 6 ') pin joint, the transverse link end respectively with the rear end of front spring spring (2), the front end pin joint of rear leaf spring (2 '), the vertical link end respectively with the two ends pin joint of pull bar (10), the right angle disposes towards wheel below or top, two balance springs (9,9 ') be socketed on the both sides of center frame (11) respectively, and be socketed on the pull bar (10), at two balance springs (9,9 ') outside pull bar (10) on be fixed with block (16,16 '), balance spring (9,9 ') can moving around at center frame (11) and block (16 with pull bar (10), 16 ') between compress or uphold.

3, suspension gear according to claim 1, it is characterized in that: preceding, back elastic element is coil spring (18,18 '), coil spring (18,18 ') following termination Control arm (19,19 '), described triangle hanger is right angle, two a holes hanger (17,17 '), its right angle end and the inner support (26 that is fixed in vehicle frame (1), 26 ') pin joint, connect coil spring (18 under the transverse link end, 18 ') upper end, on connect balance spring (9,9 ') lower end, the vertical link end respectively with the two ends pin joint of pull bar (10), the right angle is towards the configuration of wheel below, two balance springs (9,9 ') upper end and outer support (23,23 ') spring perch (30,30 ') be connected coil spring (18,18 ') and balance spring (9,9 ') can moving around respectively at Control arm (19 with pull bar (10), 19 ') and the transverse link end between, transverse link end and spring perch (30,30 ') between compress or uphold.

4, suspension gear according to claim 1, it is characterized in that: preceding elastic element is coil spring (18), back elastic element is steel spring (2 '), coil spring (18) is termination Control arm (19) down, the triangle hanger that is connected with coil spring (18 ') is right angle, two a holes hanger (17), its right angle end and inner support (26) pin joint that is fixed in vehicle frame (1), connect coil spring (18) upper end under the transverse link end, the rear end of steel spring (2 ') and hanger (4 ') pin connect, the triangle hanger that is connected with steel spring (2 ') is right angle, three a holes hanger (7 '), its right angle end and support (6 ') pin joint that is fixed in vehicle frame (1), the front end pin joint of transverse link end and steel spring (2 '), the vertical link end of right angle, two holes hanger (17) and right angle, three holes hanger (7 ') respectively with the two ends pin joint of pull bar (10), the right angle is towards the configuration of wheel below, two balance springs (9,9 ') be socketed on the two sorrowful of center frame (11) respectively, and be socketed on the pull bar (10), at two balance springs (9,9 ') outside pull bar (10) on be fixed with block (16,16 '), balance spring (9,9 ') can moving around at center frame (11) and block (16 with pull bar (10), 16 ') between compress or uphold.

5, suspension gear according to claim 1 and 2, it is characterized in that: described center frame (11) bottom is provided with boss (13), boss (13) both sides are useful on the limit coil (20,20 ') of socket balance spring (9,9 '), boss (13) has cross through hole (15), through hole (15) is for perpendicular microscler, pull bar (10) passes through hole (15), and about can be in through hole (15), sway, the front at lower boss (13) position of center frame (11) is provided with rectangular opening (14), and the screw of using when being connected with vehicle frame (1) (21) is arranged at top.

6, according to claim 3 or 4 described suspension gears, it is characterized in that: described center frame (11) bottom is provided with boss (13), boss (13) both sides are useful on the limit coil (20,20 ') of socket balance spring (9,9 '), boss (13) has cross through hole (15), through hole (15) is for perpendicular microscler, pull bar (10) passes through hole (15), and about can be in through hole (15), sway, the front at lower boss (13) position of center frame (11) is provided with rectangular opening (14), and the screw of using when being connected with vehicle frame (1) (21) is arranged at top.

7, according to claim 3 or 4 described suspension gears, it is characterized in that: the transverse link end of right angle, described two hole hanger (17,17 ') is a cylinder type, in cylinder type, have annular low groove (24,24 '), lower bulge (29,29 ') center upper portion position in annular low groove (24,24 ') is provided with groove (25,25 '), and the diameter of right angle end pin-and-hole (27,27 ') is greater than the diameter of vertical link end pin-and-hole (28,28 ').

8, suspension gear according to claim 6, it is characterized in that: the transverse link end of right angle, described two hole hanger (17,17 ') is a cylinder type, in cylinder type, have annular low groove (24,24 '), lower bulge (29,29 ') center upper portion position in annular low groove (24,24 ') is provided with groove (25,25 '), and the diameter of right angle end pin-and-hole (27,27 ') is greater than the diameter of vertical link end pin-and-hole (28,28 ').