KR20100058967A - Suspension system for vehicle - Google Patents

Suspension system for vehicle Download PDF

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Publication number
KR20100058967A
KR20100058967A KR1020080117566A KR20080117566A KR20100058967A KR 20100058967 A KR20100058967 A KR 20100058967A KR 1020080117566 A KR1020080117566 A KR 1020080117566A KR 20080117566 A KR20080117566 A KR 20080117566A KR 20100058967 A KR20100058967 A KR 20100058967A
Authority
KR
South Korea
Prior art keywords
axle
leaf spring
vehicle body
vehicle
mounting block
Prior art date
Application number
KR1020080117566A
Other languages
Korean (ko)
Inventor
김태형
Original Assignee
현대자동차주식회사
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 현대자동차주식회사 filed Critical 현대자동차주식회사
Priority to KR1020080117566A priority Critical patent/KR20100058967A/en
Publication of KR20100058967A publication Critical patent/KR20100058967A/en

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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
    • B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/12—Mounting of springs or dampers
    • B60G2204/121—Mounting of leaf springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/43—Fittings, brackets or knuckles
    • B60G2204/4306—Bracket or knuckle for rigid axles, e.g. for clamping
    • B60G2204/43065—U-shaped bolts crossing each other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/18—Leaf springs
    • F16F1/182—Leaf springs with inter-engaging portions between leaves or between leaves and mountings, e.g. ridges, notches, ripples

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

The present invention is equipped with a rod unit connected to the vehicle body to the axle on which the leaf spring is mounted, the wind up to twist the leaf spring by preventing the axle from being rotated by the change of torque caused by the engine driving and the reaction force generated by the transmission -Up) to prevent the phenomenon and to improve the durability of the leaf spring

One end of both leaf springs is mounted on each side frame of the vehicle body via spring brackets, and the other end of each leaf spring is mounted on the shank brackets on each side frame via the shank, the center of each leaf spring being the axle of the axle. In the vehicle suspension is fastened to each side via a U-bolt, to provide a vehicle suspension comprising a load unit is configured on top of the axle and connected to the vehicle body.

Description

Suspension system for vehicle {SUSPENSION SYSTEM FOR VEHICLE}

The present invention relates to a suspension device for a vehicle, and more particularly, a wind for twisting a leaf spring while the axle is rotated by a reaction force generated by a transmission and a torque change caused by an engine driving while driving a vehicle in a commercial vehicle to which a leaf spring is applied. The present invention relates to a vehicle suspension system to prevent wind-up.

In general, the suspension system is composed between the front and rear wheels of the vehicle and the vehicle body, so that it is easy to correct the course due to the steering of the vehicle and follow the course, thereby improving the steering stability, and external pressure such as vibration and shock received from the road surface while driving. As a device that improves the ride comfort and safety by returning to the equilibrium state quickly without deviating from the course by the side wind or the like, it is largely classified into an independent suspension system and an integrated suspension system.

As shown in FIG. 3, the suspension spring to which the leaf spring is applied among the integrated suspension devices includes a leaf spring 101 formed by overlapping leaf springs having different lengths in the longitudinal direction of the vehicle body, such that the side frame 103 and the axle ( A shock absorber 109 is fixed to both ends of the axle 107 surrounding the 105 and has an appropriate damping force, and is installed in the vertical direction between the side frame 103 and the axle 107.

One end of the leaf spring 101 is mounted to the side frame 103 through the spring bracket 111, the other end is mounted to the shank bracket 115 on the side frame 101 via the shank 113, It is fixed to the axle 107 by the U bolt 117 in the central portion protruding to the lower body 100.

The leaf spring 101 is fixed to the front and rear pivot fixing plates 119 and 121 at both sides based on the front and rear directions of the vehicle.

Therefore, in the conventional suspension device as described above, the leaf spring 101 performs a cushioning function according to the road condition and the load weight when the vehicle is running, and the shock absorber 109 attenuates the vibration generated from the road condition. To work.

However, in the conventional suspension device to which the leaf spring 101 is applied as described above, when the axle 107 is rotated due to a change in torque caused by driving the engine and a reaction force generated by the transmission, the leaf spring 101 and the leaf spring 101 are applied. Rotational vibration between the axles 107 is generated.

This rotational vibration, as shown in Figure 4, the leaf along the rotation radius (R) of the axle 107 from the center point (C) with respect to the front pivot fixing plate 119 mounted to the front side of the vehicle. There is a problem that the durability of the leaf spring 101 is reduced by causing a wind-up phenomenon in which the spring 101 is twisted.

In addition, the wind-up phenomenon of the leaf spring 101 generates a resonance in the leaf spring 101, the resonance has a problem that causes the noise by having a vehicle body (100).

In order to prevent this, the number of leaf springs of the leaf spring 101 is increased or a method of inserting a damper or a leaf spring having a large coefficient of friction between each leaf spring is applied, but the weight of the leaf spring 101 is applied. And there is a problem that the manufacturing cost increases, the reality is not applicable.

Therefore, the present invention has been invented to solve the problems as described above, an object of the present invention is to install a load unit connected to the vehicle body on the axle on which the leaf spring is mounted, the change of torque and the transmission generated by the engine drive It is to provide a vehicle suspension that prevents the axle from being rotated by the reaction force to prevent the wind-up phenomenon that twists the leaf spring, and improves the durability of the leaf spring.

In the vehicle suspension apparatus according to the embodiment of the present invention for achieving the above object, one end of both leaf spring is mounted on each side frame of the vehicle through a spring bracket, the other end of each leaf spring through the shank A vehicle suspension mounted on a shank bracket on a side frame, the center of each leaf spring being fastened through a U-bolt on both sides of the axle, the load unit being configured on top of the axle and connected to the vehicle body. ,

The rod unit includes an axle mounting block fixed to the upper center of the axle; A vehicle body mounting block fixed to one lower side of the vehicle body; And one end is mounted to the axle mounting block, the other end is characterized in that consisting of a connecting rod mounted to the vehicle body mounting block.

The connecting rod body portion; Is formed in a cylindrical shape, the mounting portion formed integrally at both ends of the body portion; And a connection part mounted to the mounting part and fastened to the axle and the vehicle body mounting block.

The connection part fastened to the vehicle body mounting block may have the same position as the center point of the pivot fixing plate mounted at the front of the leaf spring.

According to the vehicle suspension device according to the present invention as described above, by mounting a rod unit connected to the vehicle body on the axle on which the leaf spring is mounted, the axle is rotated by the reaction force generated by the change of torque and the transmission generated by the engine drive. This prevents the wind-up phenomenon of twisting the leaf spring, thereby improving the durability of the leaf spring.

In addition, the suspension device for a vehicle according to an embodiment of the present invention has the effect of improving the riding comfort by preventing the axle from changing the axle during bump or rebound of the vehicle by the rod unit connected to the axle to prevent rotation of the axle. .

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory only and are not restrictive of the invention, It should be understood that various equivalents and modifications may be present.

1 is a perspective view of a vehicle suspension according to an embodiment of the present invention, Figure 2 is a side view of a vehicle suspension according to an embodiment of the present invention.

Referring to the drawings, a basic configuration of a vehicle suspension apparatus according to an exemplary embodiment of the present invention will be described.

First, in the suspension device to which the leaf spring 10 is applied, as shown in FIG. 1, the leaf spring 10 formed by overlapping leaf springs having different lengths in the longitudinal direction of the vehicle body is connected to the side frame 1 and the axle shaft. It is fixed to both ends of the wrapping axle 3, respectively.

One end of the leaf spring 10 is mounted to the side frame 1 through the spring bracket 11, the other end is mounted to the shank bracket 15 on the side frame 1 via the shank 13, It is made to be fixed to the axle (3) by the U bolt (7) in the central portion protruding to the lower body (5).

The front and rear pivot fixing plates 17 and 19 are mounted at both sides of the leaf spring 10 in the front and rear directions of the vehicle to fix the leaf spring of the leaf spring 10.

Here, the vehicle suspension device according to an exemplary embodiment of the present invention by mounting the load unit 20 is connected to the vehicle body 5 on the axle (3) on which the leaf spring 10 is mounted, the torque of the engine driving It prevents the axle 3 from rotating by the reaction force generated by the change and the transmission, thereby preventing the wind-up phenomenon of twisting the leaf spring 10 and improving durability of the leaf spring 10. .

To this end, the vehicle suspension apparatus according to the embodiment of the present invention includes a rod unit 20 is configured to be connected to the vehicle body 5 is configured on the upper portion of the axle (3).

In this embodiment, the rod unit 20 is composed of an axle mounting block 21, the vehicle body mounting block 23, and the connecting rod 25.

First, the axle mounting block 21 is fixedly mounted at the upper center of the axle 3, and the vehicle body mounting block 23 is downwardly mounted toward the front side of the vehicle at the lower side of the vehicle body 5.

One end of the connection rod 25 is mounted to the axle mounting block 21, and the other end of the connection rod 25 is mounted to the vehicle body mounting block 23.

Here, the connecting rod 25 is formed in a cylindrical shape having a body portion 27 formed in a circular rod shape, and a mounting hole (not shown) in the center, integrally at both ends of the body portion 27 It is formed of a mounting portion 29 is formed, and the connection portion 31 is mounted to each mounting hole (not shown) of the mounting portion 29, and fastened to the axle and the vehicle body mounting blocks 21, 23.

That is, the connecting rod 25 is fastened to the axle and the vehicle body mounting blocks 21 and 23 through the respective connecting portions 31, thereby connecting the axle 3 and the vehicle body 5 and the vehicle body 5. ) Support the axle (3).

Here, the connecting portion 31 connected to the vehicle body mounting block 23 is mounted in the same position as the position of the front pivot fixing plate 17 mounted to the front side of the vehicle, as shown in FIG. 2. do.

In this case, the connecting portion 31 of the connecting rod 25 toward the front side of the vehicle has the same position as the center point C with respect to the front pivot fixing plate 17.

Accordingly, the rod unit 20 supports the axle 3 with respect to the vehicle body 5 while interconnecting the vehicle body 5 and the axle 3 through the connecting rod 25, thereby driving the engine. The axle 3 is prevented from rotating along the rotation radius R by the change in torque and the reaction force generated in the transmission.

As a result, the rod unit 20 initially prevents the generation of rotational vibration between the leaf spring 10 and the axle 3, thereby reducing the rotation radius R of the axle 3 from the center point C. Accordingly, the leaf spring 10 is prevented from generating a wind-up phenomenon.

Therefore, when the vehicle suspension apparatus according to the embodiment of the present invention configured as described above is applied, the rod unit 20 connected to the vehicle body 5 is mounted on the axle 3 on which the leaf spring 10 is mounted. In addition, the axle 3 is prevented from being rotated by the change of torque caused by the engine driving and the reaction force generated by the transmission, thereby preventing the wind-up phenomenon that causes the leaf spring 10 to be twisted. Durability of (10) can be improved.

In addition, the vehicle suspension according to the embodiment of the present invention, the rod unit 20 connected to the axle (3) prevents the rotation of the axle (3), so that when the bump or rebound of the vehicle (caster of the axle 3) The ride comfort can be improved by preventing the change.

As mentioned above, although this invention was demonstrated by the limited embodiment and drawing, this invention is not limited by this and is given by the person of ordinary skill in the art to the following, Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

1 is a perspective view of a vehicle suspension according to an embodiment of the present invention.

2 is a side view of a vehicle suspension according to an embodiment of the present invention.

3 is a perspective view of a vehicle suspension according to the prior art.

Figure 4 is a side view of a vehicle suspension for explaining the problems of the prior art.

Claims (2)

One end of both leaf springs is mounted on each side frame of the vehicle body via spring brackets, and the other end of each leaf spring is mounted on the shank brackets on each side frame via the shank, the center of each leaf spring being the axle of the axle. In the vehicle suspension system is fastened to each side via a U-bolt, A rod unit configured on the axle and connected to the vehicle body, The load unit An axle mounting block fixed to an upper center of the axle; A vehicle body mounting block fixed to one lower side of the vehicle body; And One end is mounted to the axle mounting block, the other end is a vehicle suspension, characterized in that consisting of a connecting rod mounted to the vehicle body mounting block. The method of claim 1, The connecting rod Body portion; A mounting portion formed in a cylindrical shape and integrally formed at both ends of the body portion; And Is mounted to the mounting portion, consisting of a connecting portion fastened to the axle and the vehicle body mounting block, Connection portion fastened to the vehicle body mounting block is a vehicle suspension, characterized in that the same position as the center point with respect to the pivot fixing plate mounted in front of the leaf spring.
KR1020080117566A 2008-11-25 2008-11-25 Suspension system for vehicle KR20100058967A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020080117566A KR20100058967A (en) 2008-11-25 2008-11-25 Suspension system for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080117566A KR20100058967A (en) 2008-11-25 2008-11-25 Suspension system for vehicle

Publications (1)

Publication Number Publication Date
KR20100058967A true KR20100058967A (en) 2010-06-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020080117566A KR20100058967A (en) 2008-11-25 2008-11-25 Suspension system for vehicle

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Country Link
KR (1) KR20100058967A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170120219A (en) 2016-04-20 2017-10-31 현대자동차주식회사 Apparatus for controlling wind up of leaf spring
KR20180129244A (en) 2017-05-26 2018-12-05 이문희 Bending apparatus of U-type member for suspension system of vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170120219A (en) 2016-04-20 2017-10-31 현대자동차주식회사 Apparatus for controlling wind up of leaf spring
KR20180129244A (en) 2017-05-26 2018-12-05 이문희 Bending apparatus of U-type member for suspension system of vehicle

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E601 Decision to refuse application